US3073590A - Card feeding system - Google Patents

Card feeding system Download PDF

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Publication number
US3073590A
US3073590A US5191A US519160A US3073590A US 3073590 A US3073590 A US 3073590A US 5191 A US5191 A US 5191A US 519160 A US519160 A US 519160A US 3073590 A US3073590 A US 3073590A
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United States
Prior art keywords
rods
tension
roller
resilient
shafts
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US5191A
Inventor
Albert J Romeo
Earl E Masterson
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Sperry Corp
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Sperry Rand Corp
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Priority to NL260454D priority Critical patent/NL260454A/xx
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Priority to US5191A priority patent/US3073590A/en
Priority to GB2965/61A priority patent/GB936751A/en
Priority to CH103561A priority patent/CH376526A/en
Application granted granted Critical
Publication of US3073590A publication Critical patent/US3073590A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/04Details, e.g. flaps in card-sorting apparatus
    • G06K13/05Capstans; Pinch rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20Location in space
    • B65H2511/22Distance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20Location in space
    • B65H2511/22Distance
    • B65H2511/224Nip between rollers, between belts or between rollers and belts

Definitions

  • Machines for moving web-like materials, such as business cards, to various spaced locations in order that the cards may be punched or printed in a predetermined manner are known in the art.
  • the card skewing usually occurs when the feed machine is moving the card-either before, after or during the printing or punching operation, which will hereafter be generically called the punching operation.
  • the feed mechanism of these machines normally comprises at least two rollers, for example of hard rubber. These rollers are mounted so that they are in vertical juxtaposition, one above the other, and the cards are inserted and fed therebetween.
  • the motor for driving the rollers of the feed mechanism is coupled to only one of the vertically juxtaposed rollers and the other roller is friction driven by the motor-driven roller.
  • a gear driven apparatus would be constructed so that the non-motor-driven (or indirectly-driven) roller is properly aligned as discussed supra in relation to the friction drive apparatus.
  • the indirectly-driven roller is spring-loaded to be initially in contact with the motor driven roller, inefficient forces will be applied at the gear train when a card is entered between the rollers and thereby forcing the rollers apart. That is, when the rollers are spread apart, the gears therebetween are also spread apart. This effects a poor interconnection of the driving force causing card skew.
  • a gear train may be-placed intermediate of and coupled to each of the rods.
  • the tensionnig system is mounted so that it may apply a force to the rods whereby the rods are moved toward each other in order that-the plurality of short rollers on each rod may be pressed together.
  • the tensioning system and the resilience of the rods are so interrelated that a card passing between the rollers will spread the rollers apart'only by the small-distance necessary for the card.
  • An object of the device is to prevent skewing ofcards during the feeding thereof to a utilization station.
  • Another object of the invention is to permit a plurality of card feeding rollers to be gear driven.
  • a further objectof the invention is to provide-a device which will feed cards at a high speed with an intermittent motion and with low'cardskewing.
  • FIGURE 1 is a front view of a portion of the'card feeding assembly of this invention
  • FIGURE 2 is a front view of the card feeding apparatus showing in an exaggerated manner the condition of the feed roller shafts in the absence of a card;
  • FIGURE 2a is a sectional viewof the apparatus shown in FIGURE 2;
  • FIGURE 3 is a front view of the card feeding apparatus in the operation of feeding a card
  • FIGURE 3a is a sectional view of the apparatus shown in FIGURE 3;
  • FIGURE 4 is a top view of portions of a simplified card feed path.
  • FIGURE 5 is a sectional view of a simplified-card feed path.
  • the card feed mechanism of this invention includes a pair of juxtaposed feed roller shafts 190, each mounted in a suitable frame member 156 by a pair of end bearings MP2. or 104.
  • the roller shafts are preferably made of a resilient material, for example stainless steel, having a diameter of approximately 4 inch.
  • the bearings 102 and 164 are mounted in a framelSd the width of which may be altered by changing the length of the rod 152 so that the bearings hold the ends of the roller shafts 100 in a substantially fixed location.
  • These bearings may be any well-known bearings, sleeve, ball, etc. and need not be precision components.
  • roller shafts ltlll may exhibit a certain amount of swivel-like motion when they are deformed, as described subsequently in relation to FIGURE 2, a relatively inexpensive hearing may even be preferable in order to allowmore freedom of movement.
  • a drivemeans At one end of one of the rollershafts 100, there is a drivemeans. Any conventional driving means may be used and, for illustrative purposes, this is shown as a pulley 1% attached to one of the roller shafts 100 and around which passes a belt 108. The belt is in turn driven by a motor for example. It may be desirable in some applications, to include a clutch (for example an electromechanical clutch) in the driving means in order to provide better control over the rotational driving of the roller shafts.
  • the roller shafts 100 are coupled together preferably at the end remote from the driven end by a suitable driving link such as the gear train indicated schematically at 112.
  • This driving link 112 may comprise for example gears 112a and 1121: or any other well-known device of this type.
  • the driving link 112 it should be noted, must be located near the substantially fixed ends of the resilient rods so that the interaction of the parts of link 112 are not disturbed during the operation of the apparatus. As shown, a preferable location of the link is at the extreme ends of the shafts.
  • This link 112 is, of course, not necessary but represents a preferred construction of the invention.
  • roller elements 114 Mounted on each of the roller shafts 100 at similar positions are a plurality of sleeve-like roller elements 114. These roller elements are attached to their respective shafts in spaced relation and rotated therewith.
  • the dimensions of the roller elements 114 are chosen such that there is sufficient space between the elements on a single shaft to allow the shaft to remain flexible and yet the rollers are not so short as to be subject to rapid wearing.
  • a shaft 100 having an effective length of about 9 inches there may be used six roller elements 114 having outside diameters of approximately /2" and a length of approximately The elements 114 may be arranged to have approximately /2 horizontal spacings therebetween.
  • a preferable embodiment of the invention utilizes roller elements which are fabricated of hard rubber in order to afford a rigid surface which exhibits a relatively large coeflicient of friction to the material to be moved by the roller elements.
  • the rollers may be rubber coated sleeves of Bakelite, nylon or similar lightweight material.
  • a metallic roller for example chrome-plated steel may be used.
  • the coeflicient of friction of the metallic roller elements is, of course, smaller than that of the rubber elements. However, a greater force may be applied by the tension system shown and described relative to FIGURE 2.
  • the roller elements on the different vertically juxtaposed shafts are initially (FIGURE 1) spaced vertically apart by a predetermined distance t.
  • roller shafts 100 are mounted in the frame 150 so as to be horizontally straight and at a distance of separation which is defined by the diameter of the roller elements 114 and the aforesaid material thickness.
  • the roller elements may have an outside diameter of /2" whereby the shaft centers will be spaced apart by a dimension equal to A" plus the card thickness t.
  • FIGURE 2 it will be seen that the surfaces of the roller elements 114 on separate shafts are now in contact.
  • This contacting of the roller elements is brought about by a controlled deformation of the shafts 100 which, as previously noted, are fabricated of resilient material.
  • the controlled deformation of the shafts 100 is caused by applying a uniformly distributed pressure along the shafts 100 and is exaggerated for illustrative purposes.
  • a tensioning system also shown schematically, comprising a pair of tension bars 116 and carrying a plurality of tension springs 118 is added.
  • the tension bars 116 are made of a substantially rigid material, preferably a metallic substance such as cold rolled steel, and are pivotally mounted in frame 150 at pivot 122 such that the tension bars may rotate about the long axis thereof.
  • the tension bars 116 may have a threaded extension 124 passing through the holes 126 in frame 150 and be thereby held in place by nuts 128.
  • the tension springs 118 (which are better seen in FIGURE 4) are preferably fabricated of a resilient material for example spring steel, and are attached at one of their ends to the tension bars 116. This attachment may be effected by any suitable method, for example, brazing or welding.
  • a preferable means of attachment is by using screws 128 (FIGURE 4) to hold the springs 118 to the bars 116, thereby permitting easy removal and/ or replacement of the individual springs.
  • the other ends of the springs 118 may then rest directly on the rods or in the alternative, as illustrated, half-bearings may be attached to the arms 113 and these half-bearings then bear on the roller shafts 100 in the spaces between the elements 114.
  • This latter construction provides advantages of alignment, lubrication, etc., as will be readily obvious to those skilled in the art.
  • a centrally located space therebetween will permit the central one of springs 118 to apply a deforming force at the center of the shaft 100.
  • FIGURE 2a is a sectional view of the apparatus shown in FIGURE 2 and more clearly shows other components of the tensioning system.
  • Each of the tension bars 116 are substantially identical, and in the interest of clarity, only one of said bars 116 will be described. However, the description applies equally well to both bars.
  • Each of these bars 116 have mounted thereon a control lever 202.
  • This lever may be mounted on the tension bars in any preferred way or may be formed initially as an integral part thereof.
  • the control lever 202 may include in a preferred embodiment a tapped hole at its free end 210 through which a screw 204 may be passed. Screw 204 may be turned in or out in order to adjust its length of extension 204a through the control lever 202.
  • the control lever 202 or the set screw 204 may then rest against a stop 206.
  • the stop may normally be an integral part of or mounted on the frame 150. Since the stop 206 has a substantially rigidly fixed location, the adjustments made in the length of extension of the set screw 204 will alter the angular position of the tension bar 116 by causing the bar 116 to rotate around its long axis. Thus, when screw 204 is adjusted so as to have a greater extension 204a through lever 202, tension bar 116 rotates in a counter-clockwise direction (in this illustration) whereby a force is applied to the roller shafts 100 via the springs 118 and the bearings 120 as previously described.
  • a nut 208 may be provided to ensure that screw 204 is positively main tained in the set position whereby the angular position of the tension bar is also maintained constant. Since the magnitude of the force to be applied is dependent upon a variety of characteristics including, for example, the
  • the force applied to the shaft may be regulated by this apparatus comprising stop 206, screw 204 and lever 202.
  • this apparatus comprising stop 206, screw 204 and lever 202.
  • a force of two pounds per half-bearing is applied when a typical tabulating' card is to be moved; or in the instant case (using five half-bearings) the total force applied to the shaft is ten pounds.
  • FIGURE 3 shows a somewhat less detailed front view of the apparatus in operation. That is, a card 300 for example, has been introduced into the apparatus and is passing between the rollers elements 114.
  • the tension force ap plied to the shafts 100 by the tensioning system (represented by bearings 120) has been carefully predetermined, as noted supra, so that the tensioning system bears upon the rods 100 such that the insertion of a card causes the roller elements 114 to part by a distance substantially qual to t, thereby forcing the rods 100 to straighten as in their initial position of FIGURE 1.
  • this component is now restored to its intended operating position and the coupling achieves its maximum effectiveness.
  • FIGURE 3a is a sectional view of FIGURE 3 and is substantially similar to FIGURE 2a with the exception that card 300 has been introduced between the upper and lower roller elements 114-. Since the rollers and, therefore, the rods are displaced from the deformed configurations to the original straight configurations of FIG- URE l, the bearings 12% are also displaced. Thus, the tension springs 118 are caused to bend slightly because tension bar 116 is firmly positioned by lever 202, screw 204 and stop 2% and cannot rotate as the movement of the shafts 16% ⁇ would tend to dictate. However, because these springs are fabricated of a material such as spring steel, which is resilient, they return to their normal configuration when the card is passed completely through the inter-roller location.
  • FIGURES 4 and 5 a typical utilization of the instant invention is shown in the form of an improved card feeding apparatus.
  • the reference numerals and associated elements in these fig ures correspond to similar numerals and elements of other figures.
  • FIGURES 4 and 5 there are shown vertically juxtaposed shafts 100, roller elements 114, etc., as shown previously with the exception that there are now four sets thereof. These sets are disposed along a line of transmittal of the cards indicated by the arrow.
  • the upper guide means doll and the lower guide means 402 (FIGURES 4 and 5) are of the usual type and are utilized to insure that there is no jamming of cards prior to the cards reaching the roller unit.
  • the gear train 420 comprising gears 4tl4-416 inclusive may be utilized in a preferred embodiment.
  • the use of this gear train permits synchronized movement of each of the roller shafts in the card feeding apparatus.
  • a single ClllVlHg means e.g. motor 114) may drive all of the roller shafts thereby assuring synchronization.
  • the dimensions of the various elements or components are related to the card to be used.
  • the effective shaft length may be approximately 9" and the distance between the roller pairs may be approximately 3" whereby the cards may be fed from roller-pair to roller-pair in the usual fashion with little or no skewing of the cards.
  • a utilization station for example a printing statron or a punching station, may be interposed between any two of the roller pairs.
  • a card feed roller assembly comprising a pair of resilient shafts and a plurality of roller sleeve members spaced along the length of each of said shafts and mounted for rotation with the associated shaft, the length of each of said roller sleeve members being greater than the length of the spaces intermediate adjacent roller sleeve members on each of said shafts, driving means coupled to one of said shafts for rotating said shaft, and
  • a pair of rotatably mounted shafts each of said shafts comprising an elongated rod of resilient material and being disposed one-above-the-other, a plurality of roller elements being mounted at spaced intervals along the length of each said elongated rods so that said elements on one of said pair of shafts are opposite said elements on the other of said pair of shaft-s, and tension means for bearing upon and thereby forcing said pair of resilient shafts toward each other whereby said oppositely mounted roller elements are caused to bear upon each other, said tension means including a plurality of arms which baar upon each of said shafts in the intervals between said roller elements whereby a l substantially uniform distributed force is applied along the length of said shafts.
  • rollers having a diametric dimension which is smaller than the distance between said pair of mounted resilient rods so that said rollers are not in contact prior to the application of the force of said tension means.
  • a pair of rotatably mounted shafts each of said shafts comprising an elongated rod of re silient material and being disposed one-above-the-other, a plurality of roller elements, said elements being mounted at spaced intervals along the length of each of said'elongated rods, tension means forcing said pair of resilient shafts toward each other whereby said roller elements are caused to bear upon each other, and control means for regulating the magnitude of the force exerted by said tension means.
  • a card feeding apparatus including a frame to contain the various components thereof, a pair of elongated resilient rods, a plurality of end bearings fixedly mounted in said frame, said resilient rods each having their ends mounted in one of said end bearings so that said rods are spaced apart by a substantially fixed distance, a plurality of roller elements on each of said resilient rods at spaced intervals therealong, said roller elements having a diametric dimension which is less than the distance between said resilient rods so that said roller elements are spaced apart, a tension bar mounted adjacent each of said resilient rods, said tension bar beng pivotally mounted thereby to permit rotation about its elongated axis, a plurality of arms extending from each of said tension bars to said resilient rods such that force may be applied to produce controlled deformation of said rods, said force being applied to said rods via said arms when said tension bar is rotated through a predetermined arc of rotation in a predetermined direction, stop means, and a stop leg extending from said tension bar to said stop means where
  • the card feeding apparatus as called for in claim 8, including means coupling said resilient rods together whereby said rods effect counter-rotation.
  • each of said shaft means comprising a resilient rod, a plurality of roller elements mounted on each one of said resilient rods, said pluralities of roller elements being equal in number whereby said pluralities of roller elements may be mounted opposite each other, tension means in juxtaposition to said shafts, said tension means including arms extending to said shaft means thereby to bear upon said rods and control the relative positions of portions thereof, driving means coupled to one of said shafts to cause rotation of said shaft, and linking means coupled to each of said shafts for interconnecting said shafts thereby to provide a mutual driving relation therebetween.
  • a card feeding apparatus including a frame member, a pair of elongated resilient rods, a plurality of end bearings mounted in said frame, said resilient rods each having their ends mounted in one of said bearings so that said rods are spaced apart having a substantially fixed distance, a plurality of roller elements on each of said resilient rods at spaced intervals therealong, said roller elements having a diametric dimension which is less than the dimension between said resilient rod so that said roller elements are spaced apart, a tension bar mounted adjacent each of said resilient rods, said tension bar being pivotally mounted thereby to permit rotation about its elongated axis, a plurality of arms extending from each of said tension bars to said resilient rods such that force may be applied to said rods via said arm when said tension bar is rotated in a predetermined direction, stop means, a stop leg extending from said tension bar to said stop means whereby the length of the arc of rotation of said tension arm may be controlled, means coupling said resilient rods together whereby said rods effect counter-rotation relative
  • a card feed roller assembly comprising at least one pair of resilient shafts and a plurality of roller sleeve members spaced along the length of each of said shafts and mounted for rotation with the associated shaft, driving means coupled to at least one of said shafts for intermittently rotating said shaft, means linking said shafts in pairs such that said shafts in an associated pair are caused to rotate simultaneously, and tension means mounted in juxtaposition to each of said shafts, said tension means including means which bear upon said shafts intermediate said plurality of roller members thereby to produce controlled deformation of portions of said shafts and the rollers thereon.
  • a plurality of resiliently deformable shaft means said shaft means arranged in associated pairs of parallel shafts, each of said shaft means having the ends thereof rotatably mounted, a separate plurality of roller means affixed to each of said shaft means and rotatable therewith, means linking said shaft means such that said shaft means are rotated simultaneously, and spring-loaded means which bear upon said shafts intermediate said plurality of rollers in order to produce a controlled deformation of the centers of said associated pairs of shafts and rollers toward one another whereby the insertion of matter between associated rollers urges said shafts toward an undeformed configuration.

Description

Jan. 15, 1963 A. J. ROMEO ETAL.
CARD FEEDING SYSTEM 5 Sheets-Sheet 1 Filed Jan. 28, 1960 INVENTORS ALBERT J. ROMEO EARL E. MASTERSON [Ill Ifll
Jan. 15, 1963 A. J. ROMEO ETAL CARD FEEDING SYSTEM 5 SheetsSheet 2 Filed Jan. 28, 1960 Elli INVENTORS ALBERT J. ROMEO EARL E. MASTERSON Jan. 15, 1963 A. J. ROMEO ETAL 3,073,590
CARD FEEDING SYSTEM Filed Jan. 28, 1960 5 Sheets-Sheet s m van OE mmmw m: ON.
INVENTORS ALBERT J. ROMEO EARL E. MASTERSON AGENT IJIIU H H: H N: v09 H H oon W w m n m 3 .H
Now d N 1 wow m: 0: ON. M mom qo van Jan. 15, 1963 A. J. ROMEO ETAL 3,073,590
CARD FEEDING SYSTEM Filed Jan. 28, 1960 5 Sheets-Sheet 4 Fig. 4
IN V EN TORS ALBERT J. ROMEO EARL E. MASTERSON A ENT Jan. 15, 1963 A. J. ROMEO ETAL 3,073,590
CARD FEEDING SYSTEM Filed Jan. 28, 1960 5 Sheets-Sheet 5 IN V EN TORS ALBERT J. ROMEO EARL E. MASTERSON AGENT ind 3,073,569 CARD FEEDTNG SYSTEM Albert J. Romeo, Springfield, Pa, and Earl E. Mastersen, Weston, Conn assignors to Sperry Rand Corporation, New York, N.Y., a corporation of Delaware Filed Jan. 28, 196i), Ser. No. 5,191 14 Claims. (til. 2715l) This invention relates to an apparatus to be used for moving fiat stock materials; and, in particular, for moving such materials, for example business cards, intermittently to spaced locations.
Machines for moving web-like materials, such as business cards, to various spaced locations in order that the cards may be punched or printed in a predetermined manner are known in the art. However, these machines frequently suffer from the problem of card skewing. The card skewing usually occurs when the feed machine is moving the card-either before, after or during the printing or punching operation, which will hereafter be generically called the punching operation. The feed mechanism of these machines normally comprises at least two rollers, for example of hard rubber. These rollers are mounted so that they are in vertical juxtaposition, one above the other, and the cards are inserted and fed therebetween. Usually the motor for driving the rollers of the feed mechanism is coupled to only one of the vertically juxtaposed rollers and the other roller is friction driven by the motor-driven roller. This has been the case because the attempts to provide a gear-train be tween the rollers whereby the motor-driven roller would drive the juxtaposed roller were ineffective. Consequently, a feeding mechanism utilizing a friction-driven roller had to be properly aligned. Therefore, the friction-driven roller was usually spring-loaded so that the vertically juxtaposed rollers would normally be maintained in contact and yet be sufficiently displaceable so that a card could pass therebetween. Since the rollers or card or both are subject to slight imperfections, certain portions of the card would be driven'while the other portions of the card remained stationary or moved at different speeds. Thus, the cards were caused to skew. In the alternative, a gear driven apparatus would be constructed so that the non-motor-driven (or indirectly-driven) roller is properly aligned as discussed supra in relation to the friction drive apparatus. Thus, if the indirectly-driven roller is spring-loaded to be initially in contact with the motor driven roller, inefficient forces will be applied at the gear train when a card is entered between the rollers and thereby forcing the rollers apart. That is, when the rollers are spread apart, the gears therebetween are also spread apart. This effects a poor interconnection of the driving force causing card skew. if the rollers and the gears are initially spaced apart, then similar problems of irregular drive of the cards arise as they did in the case of a friction-driven roller because of the slight variations and imperfections in the cards and rollers, and the cards again may be skewed. The problems are further complicated by the moving of the cards in a series of short, rapid, intermittent motions. Each of these stopstart operations is subject to normal back-lash problerns which are compounded by the inefficient cooperation between the spread apart gears.
The above-noted disadvantages are obviated by this invention which utilizes resilient roller shafts, a plurality of short roller elements on each of the resilient shafts, and a tensioning system for controlling the position of the roller shafts in order to incorporate the advantages of both the gear driven, and the friction driven apparatus while eliminating the problems inherent in each. That is, the resilient shafts or rods are mounted such that their ends are disposed in fixed end bearings whereby Estates Eatent sary details.
ice
a gear train may be-placed intermediate of and coupled to each of the rods. The tensionnig system is mounted so that it may apply a force to the rods whereby the rods are moved toward each other in order that-the plurality of short rollers on each rod may be pressed together. Furthermore, the tensioning system and the resilience of the rods are so interrelated that a card passing between the rollers will spread the rollers apart'only by the small-distance necessary for the card. Thus, the advantage of substantially instantaneous movement of each roller which is achieved by an intermediate gear train may be utilized.
An object of the device is to prevent skewing ofcards during the feeding thereof to a utilization station.
Another object of the invention is to permit a plurality of card feeding rollers to be gear driven.
A further objectof the invention is to provide-a device which will feed cards at a high speed with an intermittent motion and with low'cardskewing.
These and other vobjects and advantages may be appreciated by reading the following detailed-description of the invention in conjunction with the accompanying drawing, in which:
FIGURE 1 is a front view of a portion of the'card feeding assembly of this invention;
FIGURE 2 is a front view of the card feeding apparatus showing in an exaggerated manner the condition of the feed roller shafts in the absence of a card;
FIGURE 2a is a sectional viewof the apparatus shown in FIGURE 2;
FIGURE 3 is a front view of the card feeding apparatus in the operation of feeding a card;
FIGURE 3a is a sectional view of the apparatus shown in FIGURE 3;
FIGURE 4 is a top view of portions of a simplified card feed path; and
FIGURE 5 is a sectional view of a simplified-card feed path.
In the drawings it will be seen that similar components in each of the figures bear the same reference numerals. Also for purposes of clarity the illustrations have been simplified in order to remove certain-unneces- For example, a detailed description of only one pair of feed rollers has been shown, but his understood that in a typical card feed system several pairs of suchrollers maybe spaced along the card feed path as is shown in a much simplified form.
Turning now to FIGURE 1, it will be seen that the card feed mechanism of this invention includes a pair of juxtaposed feed roller shafts 190, each mounted in a suitable frame member 156 by a pair of end bearings MP2. or 104. The roller shafts are preferably made of a resilient material, for example stainless steel, having a diameter of approximately 4 inch. The bearings 102 and 164 are mounted in a framelSd the width of which may be altered by changing the length of the rod 152 so that the bearings hold the ends of the roller shafts 100 in a substantially fixed location. These bearings may be any well-known bearings, sleeve, ball, etc. and need not be precision components. Since the roller shafts ltlll may exhibit a certain amount of swivel-like motion when they are deformed, as described subsequently in relation to FIGURE 2, a relatively inexpensive hearing may even be preferable in order to allowmore freedom of movement. At one end of one of the rollershafts 100, there is a drivemeans. Any conventional driving means may be used and, for illustrative purposes, this is shown as a pulley 1% attached to one of the roller shafts 100 and around which passes a belt 108. The belt is in turn driven by a motor for example. It may be desirable in some applications, to include a clutch (for example an electromechanical clutch) in the driving means in order to provide better control over the rotational driving of the roller shafts. Also in a preferred embodiment, the roller shafts 100 are coupled together preferably at the end remote from the driven end by a suitable driving link such as the gear train indicated schematically at 112.
This driving link 112 may comprise for example gears 112a and 1121: or any other well-known device of this type. The driving link 112, it should be noted, must be located near the substantially fixed ends of the resilient rods so that the interaction of the parts of link 112 are not disturbed during the operation of the apparatus. As shown, a preferable location of the link is at the extreme ends of the shafts. This link 112 is, of course, not necessary but represents a preferred construction of the invention.
Mounted on each of the roller shafts 100 at similar positions are a plurality of sleeve-like roller elements 114. These roller elements are attached to their respective shafts in spaced relation and rotated therewith. The dimensions of the roller elements 114 are chosen such that there is sufficient space between the elements on a single shaft to allow the shaft to remain flexible and yet the rollers are not so short as to be subject to rapid wearing. For example, on a shaft 100 having an effective length of about 9 inches, there may be used six roller elements 114 having outside diameters of approximately /2" and a length of approximately The elements 114 may be arranged to have approximately /2 horizontal spacings therebetween. A preferable embodiment of the invention utilizes roller elements which are fabricated of hard rubber in order to afford a rigid surface which exhibits a relatively large coeflicient of friction to the material to be moved by the roller elements. In the alternative, however, the rollers may be rubber coated sleeves of Bakelite, nylon or similar lightweight material. In the event that roller wear is an important factor, a metallic roller, for example chrome-plated steel may be used. The coeflicient of friction of the metallic roller elements is, of course, smaller than that of the rubber elements. However, a greater force may be applied by the tension system shown and described relative to FIGURE 2. The roller elements on the different vertically juxtaposed shafts are initially (FIGURE 1) spaced vertically apart by a predetermined distance t. This predetermined distance of separation between the rollers is determined by the thickness of the material to be moved. Thus, the roller shafts 100 are mounted in the frame 150 so as to be horizontally straight and at a distance of separation which is defined by the diameter of the roller elements 114 and the aforesaid material thickness. In a typical example, the roller elements may have an outside diameter of /2" whereby the shaft centers will be spaced apart by a dimension equal to A" plus the card thickness t.
Referring now to FIGURE 2 it will be seen that the surfaces of the roller elements 114 on separate shafts are now in contact. This contacting of the roller elements is brought about by a controlled deformation of the shafts 100 which, as previously noted, are fabricated of resilient material. The controlled deformation of the shafts 100 is caused by applying a uniformly distributed pressure along the shafts 100 and is exaggerated for illustrative purposes. To permit uniform distribution of the pressure along the length of the card feed roller, a tensioning system, also shown schematically, comprising a pair of tension bars 116 and carrying a plurality of tension springs 118 is added. The tension bars 116 are made of a substantially rigid material, preferably a metallic substance such as cold rolled steel, and are pivotally mounted in frame 150 at pivot 122 such that the tension bars may rotate about the long axis thereof. Thus, for example, in one method of mounting, the tension bars 116 may have a threaded extension 124 passing through the holes 126 in frame 150 and be thereby held in place by nuts 128. The tension springs 118 (which are better seen in FIGURE 4) are preferably fabricated of a resilient material for example spring steel, and are attached at one of their ends to the tension bars 116. This attachment may be effected by any suitable method, for example, brazing or welding. A preferable means of attachment is by using screws 128 (FIGURE 4) to hold the springs 118 to the bars 116, thereby permitting easy removal and/ or replacement of the individual springs. The other ends of the springs 118 may then rest directly on the rods or in the alternative, as illustrated, half-bearings may be attached to the arms 113 and these half-bearings then bear on the roller shafts 100 in the spaces between the elements 114. This latter construction provides advantages of alignment, lubrication, etc., as will be readily obvious to those skilled in the art. In addition, when an even number of elements 114 is utilized, a centrally located space therebetween will permit the central one of springs 118 to apply a deforming force at the center of the shaft 100.
FIGURE 2a is a sectional view of the apparatus shown in FIGURE 2 and more clearly shows other components of the tensioning system. Each of the tension bars 116 are substantially identical, and in the interest of clarity, only one of said bars 116 will be described. However, the description applies equally well to both bars. Each of these bars 116 have mounted thereon a control lever 202. This lever may be mounted on the tension bars in any preferred way or may be formed initially as an integral part thereof. The control lever 202 may include in a preferred embodiment a tapped hole at its free end 210 through which a screw 204 may be passed. Screw 204 may be turned in or out in order to adjust its length of extension 204a through the control lever 202. The control lever 202 or the set screw 204 (in the preferred embodiment) may then rest against a stop 206. The stop may normally be an integral part of or mounted on the frame 150. Since the stop 206 has a substantially rigidly fixed location, the adjustments made in the length of extension of the set screw 204 will alter the angular position of the tension bar 116 by causing the bar 116 to rotate around its long axis. Thus, when screw 204 is adjusted so as to have a greater extension 204a through lever 202, tension bar 116 rotates in a counter-clockwise direction (in this illustration) whereby a force is applied to the roller shafts 100 via the springs 118 and the bearings 120 as previously described. A nut 208 may be provided to ensure that screw 204 is positively main tained in the set position whereby the angular position of the tension bar is also maintained constant. Since the magnitude of the force to be applied is dependent upon a variety of characteristics including, for example, the
characteristics of the material being moved and the material comprising the roller elements, the force applied to the shaft may be regulated by this apparatus comprising stop 206, screw 204 and lever 202. In an illustrative operation, a force of two pounds per half-bearing is applied when a typical tabulating' card is to be moved; or in the instant case (using five half-bearings) the total force applied to the shaft is ten pounds. It will now be appreciated that as the shafts 100 rotate while in the deformed configuration, there may be a slight swivel-like or eccentric motion at the ends thereof. Therefore, the bearings 102 and 104 (FIGURES l and 2) may be of an inexpensive variety as mentioned previously.
Turning now to FIGURE 3, it may be seen that this figure shows a somewhat less detailed front view of the apparatus in operation. That is, a card 300 for example, has been introduced into the apparatus and is passing between the rollers elements 114. The tension force ap plied to the shafts 100 by the tensioning system (represented by bearings 120) has been carefully predetermined, as noted supra, so that the tensioning system bears upon the rods 100 such that the insertion of a card causes the roller elements 114 to part by a distance substantially qual to t, thereby forcing the rods 100 to straighten as in their initial position of FIGURE 1. Thus, even if there had previously been an inefiicient coupling at driving link 112, this component is now restored to its intended operating position and the coupling achieves its maximum effectiveness.
FIGURE 3a is a sectional view of FIGURE 3 and is substantially similar to FIGURE 2a with the exception that card 300 has been introduced between the upper and lower roller elements 114-. Since the rollers and, therefore, the rods are displaced from the deformed configurations to the original straight configurations of FIG- URE l, the bearings 12% are also displaced. Thus, the tension springs 118 are caused to bend slightly because tension bar 116 is firmly positioned by lever 202, screw 204 and stop 2% and cannot rotate as the movement of the shafts 16%} would tend to dictate. However, because these springs are fabricated of a material such as spring steel, which is resilient, they return to their normal configuration when the card is passed completely through the inter-roller location.
Referring now to FIGURES 4 and 5 concurrently, a typical utilization of the instant invention is shown in the form of an improved card feeding apparatus. The reference numerals and associated elements in these fig ures correspond to similar numerals and elements of other figures. In FIGURES 4 and 5 there are shown vertically juxtaposed shafts 100, roller elements 114, etc., as shown previously with the exception that there are now four sets thereof. These sets are disposed along a line of transmittal of the cards indicated by the arrow. The upper guide means doll and the lower guide means 402 (FIGURES 4 and 5) are of the usual type and are utilized to insure that there is no jamming of cards prior to the cards reaching the roller unit. Fur thermore, the gear train 420 comprising gears 4tl4-416 inclusive may be utilized in a preferred embodiment. The use of this gear train permits synchronized movement of each of the roller shafts in the card feeding apparatus. Thus, it is possible that, if desirable, a single ClllVlHg means (e.g. motor 114)) may drive all of the roller shafts thereby assuring synchronization.
In a typical system as suggested by FIGURES 4 and 5, which system is adapted to feed conventional business cards, the dimensions of the various elements or components are related to the card to be used. As for example, if the card is assumed to have the approximate dimensions 7%" x 3 /2" the effective shaft length may be approximately 9" and the distance between the roller pairs may be approximately 3" whereby the cards may be fed from roller-pair to roller-pair in the usual fashion with little or no skewing of the cards. In addition, a utilization station, for example a printing statron or a punching station, may be interposed between any two of the roller pairs.
In the event that a driving link 112 is not desired to be incorporated, but rather the friction between the card and the indirectly driven roller (the lower roller in this case), is relied upon to feed the card, the distributron of independently alignable rollers 114 and the uniform distribution of the force across the surface-of the card will efi'ect proper in-line feeding thereof. That is, since each of the roller elements 114, acts somewhat independently of the other roller elements on the same shaft, the force which is applied by the tensioning system is distributed across the card in a fashion which is determined by the card itself and is substantially equally displayed at all points of contact between the card and the roller elements 114. Consequently, the slight imperfections in the thickness of the cards or the diametric dimensions possibly found in the roller element-s will not cause card skewing because each of the elements applies the proper force necessary to provide positive control of the card.
Thus, it may be seen that when the apparatus is used to feed punch cards, for example, at intermittent times, such that there is a high rate of stop-start operation,
the problem of card skewing will be substantially obviated. That is, there will be a tension force applied to the shafts by the tension system thereby to maintain substantially equal friction forces on all points of contact between the rollers and the cards; and there may be, a driving link actually inserted between the two roller rods so that they will be gear driven, for example, in order to provide a further degree of positive control. Furthermore, it may be apparent to those skilled in the art that a plurality of rod pairs, as shown in the figures, may be somewhat modified in order to facilitate larger cards, etc. These and other modifications of the disclosed invention are meant to be included in this description which is intended to be illustrative only of a preferred embodiment.
Having thus described the invention, what is claimed 1s:
1. In a card feeding mechanism, a card feed roller assembly, said roller assembly comprising a pair of resilient shafts and a plurality of roller sleeve members spaced along the length of each of said shafts and mounted for rotation with the associated shaft, the length of each of said roller sleeve members being greater than the length of the spaces intermediate adjacent roller sleeve members on each of said shafts, driving means coupled to one of said shafts for rotating said shaft, and
tically juxtaposed, resilient rods, a plurality of end bear-- ings rotatably mounted in said frame, each of said resilient rods being mounted in a pair of said end bearings so that said rods are vertically spaced apart by a substantially fixed distance, a plurality of rubber roller elements mounted on each of said resilient rods at spaced intervals therealong such that the roller elements of separate shafts are disposed opposite each other, said roller elements having a diarnetric dimension which is less than the distance between said resilient rods so that said opposedroller elements are spaced slightly apart, a pair of tension bars arranged so that one tension bar is mounted adjacent each of said resilient rods, said tension bar being rotatably mounted, a pluralityof tension springs extending from each of said tension bars to said resilient rods, each of said tension springs including a half-bearing at the end adjacent said resilient rods, said half-bearings resting on said resilient rods such that forcemay be applied to said rods via said tension springs whereby said rods are so deformed that said opposed roller elements are caused to be in contact when said tension bar is rotated in a predetermined direction, stop means, a control lever extending from said tension bar to said stop means whereby the rotation of said tension arm may be controlled, and driving means coupled to at least one of said resilient rods for driving said roller elements via said rods whereby cards may be. moved through said card feeding apparatus.
3. The combination as called for in claim 2, wherein a driving link is coupled between said rods so that said rods may be driven simultaneously.
4. In combination, a pair of rotatably mounted shafts, each of said shafts comprising an elongated rod of resilient material and being disposed one-above-the-other, a plurality of roller elements being mounted at spaced intervals along the length of each said elongated rods so that said elements on one of said pair of shafts are opposite said elements on the other of said pair of shaft-s, and tension means for bearing upon and thereby forcing said pair of resilient shafts toward each other whereby said oppositely mounted roller elements are caused to bear upon each other, said tension means including a plurality of arms which baar upon each of said shafts in the intervals between said roller elements whereby a l substantially uniform distributed force is applied along the length of said shafts.
5. In the combination as called for in claim 4, said rollers having a diametric dimension which is smaller than the distance between said pair of mounted resilient rods so that said rollers are not in contact prior to the application of the force of said tension means.
6. In combination, a pair of rotatably mounted shafts, each of said shafts comprising an elongated rod of re silient material and being disposed one-above-the-other, a plurality of roller elements, said elements being mounted at spaced intervals along the length of each of said'elongated rods, tension means forcing said pair of resilient shafts toward each other whereby said roller elements are caused to bear upon each other, and control means for regulating the magnitude of the force exerted by said tension means.
7. The combination of claim 6, including driving means linked to at least one of said shafts for rotating said shafts.
8. In a card feeding apparatus including a frame to contain the various components thereof, a pair of elongated resilient rods, a plurality of end bearings fixedly mounted in said frame, said resilient rods each having their ends mounted in one of said end bearings so that said rods are spaced apart by a substantially fixed distance, a plurality of roller elements on each of said resilient rods at spaced intervals therealong, said roller elements having a diametric dimension which is less than the distance between said resilient rods so that said roller elements are spaced apart, a tension bar mounted adjacent each of said resilient rods, said tension bar beng pivotally mounted thereby to permit rotation about its elongated axis, a plurality of arms extending from each of said tension bars to said resilient rods such that force may be applied to produce controlled deformation of said rods, said force being applied to said rods via said arms when said tension bar is rotated through a predetermined arc of rotation in a predetermined direction, stop means, and a stop leg extending from said tension bar to said stop means whereby the length of the arc of rotation of said tension arm may be controlled.
9. The card feeding apparatus as called for in claim 8, including means coupling said resilient rods together whereby said rods effect counter-rotation.
10. In combination, a plurality of elongated shaft means, each of said shaft means comprising a resilient rod, a plurality of roller elements mounted on each one of said resilient rods, said pluralities of roller elements being equal in number whereby said pluralities of roller elements may be mounted opposite each other, tension means in juxtaposition to said shafts, said tension means including arms extending to said shaft means thereby to bear upon said rods and control the relative positions of portions thereof, driving means coupled to one of said shafts to cause rotation of said shaft, and linking means coupled to each of said shafts for interconnecting said shafts thereby to provide a mutual driving relation therebetween.
11. The combination of claim 10 wherein said linking means comprises a gear train.
12. A card feeding apparatus including a frame member, a pair of elongated resilient rods, a plurality of end bearings mounted in said frame, said resilient rods each having their ends mounted in one of said bearings so that said rods are spaced apart having a substantially fixed distance, a plurality of roller elements on each of said resilient rods at spaced intervals therealong, said roller elements having a diametric dimension which is less than the dimension between said resilient rod so that said roller elements are spaced apart, a tension bar mounted adjacent each of said resilient rods, said tension bar being pivotally mounted thereby to permit rotation about its elongated axis, a plurality of arms extending from each of said tension bars to said resilient rods such that force may be applied to said rods via said arm when said tension bar is rotated in a predetermined direction, stop means, a stop leg extending from said tension bar to said stop means whereby the length of the arc of rotation of said tension arm may be controlled, means coupling said resilient rods together whereby said rods effect counter-rotation relative to each other, and driving means coupled to one of said resilient rods for driving said roller elements via said rods.
'13. In an intermittently actuated card feeding mechanism, a card feed roller assembly, said roller assembly comprising at least one pair of resilient shafts and a plurality of roller sleeve members spaced along the length of each of said shafts and mounted for rotation with the associated shaft, driving means coupled to at least one of said shafts for intermittently rotating said shaft, means linking said shafts in pairs such that said shafts in an associated pair are caused to rotate simultaneously, and tension means mounted in juxtaposition to each of said shafts, said tension means including means which bear upon said shafts intermediate said plurality of roller members thereby to produce controlled deformation of portions of said shafts and the rollers thereon.
14. In combination, a plurality of resiliently deformable shaft means, said shaft means arranged in associated pairs of parallel shafts, each of said shaft means having the ends thereof rotatably mounted, a separate plurality of roller means affixed to each of said shaft means and rotatable therewith, means linking said shaft means such that said shaft means are rotated simultaneously, and spring-loaded means which bear upon said shafts intermediate said plurality of rollers in order to produce a controlled deformation of the centers of said associated pairs of shafts and rollers toward one another whereby the insertion of matter between associated rollers urges said shafts toward an undeformed configuration.
References Cited in the file of this patent UNITED STATES PATENTS 1,778,804 Lindner Oct. 21, 1930 1,830,120 McGowan Nov. 3, 1931 2,036,883 Poppe Apr. 7, 1936 2,114,691 Vose Apr. 19, 1938 2,201,605 Backhouse May 21, 1940 2,578,413 Ford Dec. 11, 1951 2,751,982 Schlemmer June 26, 1956 2,849,230 Danly et al. Aug. 26, 1958 2,960,749 Robertson Nov. 22, 1960 FOREIGN PATENTS 388,527 Great Britain Mar. 2, 1933

Claims (1)

  1. 2. IN A CARD FEEDING APPARATUS INCLUDING A FRAME TO CONTAIN THE VARIOUS COMPONENTS THEREOF, A PAIR OF VERTICALLY JUXTAPOSED, RESILIENT RODS, A PLURALITY OF END BEARINGS ROTATABLY MOUNTED IN SAID FRAME, EACH OF SAID RESILIENT RODS BEING MOUNTED IN A PAIR OF SAID END BEARINGS SO THAT SAID RODS ARE VERTICALLY SPACED APART BY A SUBSTANTIALLY FIXED DISTANCE, A PLURALITY OF RUBBER ROLLER ELEMENTS MOUNTED ON EACH OF SAID RESILIENT RODS AT SPACED INTERVALS THEREALONG SUCH THAT THE ROLLER ELEMENTS OF SEPARATE SHAFTS ARE DISPOSED OPPOSITE EACH OTHER, SAID ROLL ER ELEMENTS HAVING A DIAMETRIC DIMENSION WHICH IS LESS THAN THE DISTANCE BETWEEN SAID RESILIENT RODS SO THAT SAID OPPOSED ROLLER ELEMENTS ARE SPACED SLIGHTLY APART, A PAIR OF TENSION BARS ARRANGED SO THAT ONE TENSION BAR IS MOUNTED ADJACENT EACH OF SAID RESILIENT RODS, SAID TENSION BAR BEING ROTATABLY MOUNTED, A PLURALITY OF TENSION SPRINGS EXTENDING FROM EACH OF SAID TENSION BARS TO SAID RESILIENT RODS, EACH OF SAID TENSION SPRINGS INCLUDING A HALF-BEARING AT THE END ADJACENT SAID RESILIENT RODS, SAID HALF-BEARINGS RESTING ON SAID RESILIENT RODS SUCH THAT FORCE MAY BE APPLIED TO SAID RODS VIA SAID TENSION SPRINGS WHEREBY SAID RODS ARE SO DEFORMED THAT SAID OPPOSED ROLLER ELEMENTS ARE CAUSED TO BE IN CONTACT WHEN SAID TENSION BAR IS ROTATED IN A PREDETERMINED DIRECTION, STOP MEANS, A CONTROL LEVER EXTENDING FROM SAID TENSION BAR TO SAID STOP MEANS WHEREBY THE ROTATION OF SAID TENSION ARM MAY BE CONTROLLED, AND DRIVING MEANS COUPLED TO AT LEAST ONE OF SAID RESILIENT RODS FOR DRIVING SAID ROLLER ELEMENTS VIA SAID RODS WHEREBY CARDS MAY BE MOVED THROUGH SAID CARD FEEDING APPARATUS.
US5191A 1960-01-28 1960-01-28 Card feeding system Expired - Lifetime US3073590A (en)

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CH103561A CH376526A (en) 1960-01-28 1961-01-28 Card feeder

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US3265385A (en) * 1964-06-09 1966-08-09 Addressograph Multigraph Removable idler roller assembly
US3269626A (en) * 1964-03-27 1966-08-30 Omnitronics Inc Adjustable support for pressure fixing rollers
US3326439A (en) * 1964-09-15 1967-06-20 Harris Intertype Corp Preloading structure for cooperating cylinders
US3330458A (en) * 1965-05-17 1967-07-11 Quik Chek Electronics And Phot Removable pressure roller mechanism
US3360259A (en) * 1964-09-21 1967-12-26 Datron Systems Inc Tabulating card feed
US3416790A (en) * 1966-12-20 1968-12-17 Honeywell Inc Unit record translating mounting
US3432083A (en) * 1966-05-26 1969-03-11 Minnesota Rubber Co Pinch roller
US3604704A (en) * 1969-09-22 1971-09-14 Ibm Stacker for document cards
US3674194A (en) * 1968-11-27 1972-07-04 Otto C Strecker K C Drawing press
US3748442A (en) * 1972-02-11 1973-07-24 Amp Inc Card reader transport device
US3779360A (en) * 1972-08-23 1973-12-18 Westinghouse Electric Corp Transportation device having movable handrails
DE2514594A1 (en) * 1974-04-04 1975-10-23 Henry F Hope TRANSPORT SYSTEM FOR A MATERIAL TRAIL, FOR EXAMPLE A PHOTOGRAPHIC FILM
US3948511A (en) * 1973-11-19 1976-04-06 Rank Xerox Ltd. Sheet feeding devices
US3989176A (en) * 1974-04-04 1976-11-02 Hope Henry F Web transporting system
US4195832A (en) * 1977-09-13 1980-04-01 Siemens Aktiengesellschaft X-ray photographic apparatus
US4214379A (en) * 1977-03-24 1980-07-29 Hope Henry F Dryer rack using staggered rollers
US4346883A (en) * 1979-08-30 1982-08-31 Honeywell Information Systems Inc. Document positioning and feeding apparatus for high speed printers
US4478402A (en) * 1983-02-07 1984-10-23 Eastman Kodak Company Nip drive for sheet feeding apparatus
US4889270A (en) * 1987-02-24 1989-12-26 Mannesmann Aktiengesellschaft Device for the paper transport of single sheets and/or continuous paper in office machines, in particular in matrix printers
US5667164A (en) * 1992-03-30 1997-09-16 Dainippon Screen Mfg. Co., Ltd. Device and method for feeding a sheet
US6450381B1 (en) * 1999-11-13 2002-09-17 Erhardt + Leimer Gmbh Device and method for guiding a transversely stable material web

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FR2519583A1 (en) * 1982-01-12 1983-07-18 Smh Alcatel TRAINING AND PRINTING MECHANISM FOR POSTAGE MACHINE

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US1778804A (en) * 1928-02-28 1930-10-21 Lindner Mfg Company Carton-sealing machine
GB388527A (en) * 1931-12-23 1933-03-02 Gen Electric Co Ltd Improvements in power driven domestic machines such as wringers
US2036883A (en) * 1932-09-30 1936-04-07 Equitable Paper Bag Co Bag tube mechanism
US2114691A (en) * 1936-12-31 1938-04-19 Rca Corp Recording material feed apparatus
US2201605A (en) * 1939-01-03 1940-05-21 Backhouse Headley Townsend Sheet conveyer
US2578413A (en) * 1948-06-03 1951-12-11 Ford Frank Ronald Pressure roller bending device for duplicating machines
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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269626A (en) * 1964-03-27 1966-08-30 Omnitronics Inc Adjustable support for pressure fixing rollers
US3265385A (en) * 1964-06-09 1966-08-09 Addressograph Multigraph Removable idler roller assembly
US3326439A (en) * 1964-09-15 1967-06-20 Harris Intertype Corp Preloading structure for cooperating cylinders
US3360259A (en) * 1964-09-21 1967-12-26 Datron Systems Inc Tabulating card feed
US3330458A (en) * 1965-05-17 1967-07-11 Quik Chek Electronics And Phot Removable pressure roller mechanism
US3432083A (en) * 1966-05-26 1969-03-11 Minnesota Rubber Co Pinch roller
US3416790A (en) * 1966-12-20 1968-12-17 Honeywell Inc Unit record translating mounting
US3674194A (en) * 1968-11-27 1972-07-04 Otto C Strecker K C Drawing press
US3604704A (en) * 1969-09-22 1971-09-14 Ibm Stacker for document cards
US3748442A (en) * 1972-02-11 1973-07-24 Amp Inc Card reader transport device
US3779360A (en) * 1972-08-23 1973-12-18 Westinghouse Electric Corp Transportation device having movable handrails
US3948511A (en) * 1973-11-19 1976-04-06 Rank Xerox Ltd. Sheet feeding devices
DE2514594A1 (en) * 1974-04-04 1975-10-23 Henry F Hope TRANSPORT SYSTEM FOR A MATERIAL TRAIL, FOR EXAMPLE A PHOTOGRAPHIC FILM
US3989176A (en) * 1974-04-04 1976-11-02 Hope Henry F Web transporting system
US4214379A (en) * 1977-03-24 1980-07-29 Hope Henry F Dryer rack using staggered rollers
US4195832A (en) * 1977-09-13 1980-04-01 Siemens Aktiengesellschaft X-ray photographic apparatus
US4346883A (en) * 1979-08-30 1982-08-31 Honeywell Information Systems Inc. Document positioning and feeding apparatus for high speed printers
US4478402A (en) * 1983-02-07 1984-10-23 Eastman Kodak Company Nip drive for sheet feeding apparatus
US4889270A (en) * 1987-02-24 1989-12-26 Mannesmann Aktiengesellschaft Device for the paper transport of single sheets and/or continuous paper in office machines, in particular in matrix printers
US5667164A (en) * 1992-03-30 1997-09-16 Dainippon Screen Mfg. Co., Ltd. Device and method for feeding a sheet
US6450381B1 (en) * 1999-11-13 2002-09-17 Erhardt + Leimer Gmbh Device and method for guiding a transversely stable material web

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GB936751A (en) 1963-09-11
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