US3355349A - Apparatus for conveying lead strip from driers to calenders in paper-making - Google Patents

Apparatus for conveying lead strip from driers to calenders in paper-making Download PDF

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US3355349A
US3355349A US41796164A US3355349A US 3355349 A US3355349 A US 3355349A US 41796164 A US41796164 A US 41796164A US 3355349 A US3355349 A US 3355349A
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belt
lead strip
calenders
drier
air
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Andrew G Devlin
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/04—Paper-break control devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2192—Endless conveyor

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  • travelling ropes are arranged between the drum and the calenders into which a lead strip formed in the web is thrust and permitted to find its way into the calender rolls and, in some other instances, the web is quite often fed by hand into the calender rolls.
  • travelling ropes are arranged between the drum and the calenders into which a lead strip formed in the web is thrust and permitted to find its way into the calender rolls and, in some other instances, the web is quite often fed by hand into the calender rolls.
  • the purpose of this invention is to provide an apparatus by means of which the lead strip of the paper web may be accurately and positively fed into the calenders of a paper making machine and which is so constructed that the danger to the lifeand limb of the operator is reduced to minimal proportions.
  • the present invention comprises an air pervious traveling belt extending from the drier to the calenders, and
  • the web passes directly from the driers to and through the calenders.
  • the web extends as a shallow catenary therebetween and, due to its inherent tensile strength, requires no support.
  • the drier 10 is shown mounted on a base 14, the latter being secured to a floor 16 in which an opening or slot 18 is formed to permit the paper web, in the event of breakage thereof, to pass downwardly therethrough and into a waste bin suitably provided.
  • FIGURE 1 is a view in elevation of the apparatus showing its disposition relative to the drier and calenders of a paper making machine
  • FIGURE 2 is an isometric view of a fragmentary portion of the apparatus
  • FIGURE 3 is another fragmentary isometric view of a portion of the apparatus at the drier end thereof.
  • FIGURE 4 is a side view of the apparatus taken at the drier end thereof, showing the disposition of the lead strip thereon.
  • the drying drum or drier over which the paper web passes is usually spaced some considerable distance away from the calenders in order to allow working space for the machine operators therebetween.
  • the calenders 12 are also shown as represented by a series of rolls 20 mounted on a frame 22 one above the other, the paper web normally passing from the top 24 of the drier into a first pass 26 in the calenders.
  • Both the drier and calenders are driven by conventional means, not shown, and are provided with controls whereby the peripheral speed of each of them may be synchronized so that the tension on the Web, as indicated by the depth of the c'atenary it forms, may be properly adjusted.
  • the present invention which is concerned with the transfer of the lead strip formed, as hereinbefore men- 'tioned, from the drier to the calenders comprises an endless belt-type conveyor 28 which extends between the drier and calenders to carry the lead strip therebetween, and which is provided with means whereby the strip may be made to adhere thereto as it moves to the calenders and then be released from the conveyor to extend towards the first pass 26 so as to be caught therein and passed in the usual manner around the rolls 20 thereof.
  • the conveyor 28 comprises an endless belt 29 which extends between a pair of belt pulleys 30 and 31 mounted on shafts 32 and 33, respectively, the latter being secured for rotation between the opposite ends of a pair of spaced parallel support frames 34 and 35.
  • Shaft 33 projects at one end 37 beyond the frame 35 and is provided with a small V pulley 38 which is driven by a V belt 39, the latter passing over another V pulley 40 which is secured concentrically to one of the calender rolls for rotation therewith.
  • One of either of the V pulleys 38 or 40 is of the variable diameter type so that the linear speed of the belt may be synchronized with the peripheral speed of the calender rolls.
  • belt tighteners 42 which bear upwardly against the lower run 44 of the belt 29. Said belt tighteners are of known construction and will therefore not be described in detail.
  • the side frames 34 and 35 are connected as by welding to the vertical sides 46 and 47 of an elongated chest 48, the latter being located between the lower run 44 of the belt and its upper run 49 extending longitudinally of the conveyor from' a point adjacent pulley 31 to a point radjacent pulley 30,
  • the chest has an upper wall 50 1oicated adjacent to and planarily parallel to the upper run 49 of the belt and said upper wall is perforated, the per- :forations therein taking the form of two rows of longiitudinally extending slots 52, the slots in each of the rows [being spaced longitudianlly apart and each of the slots fin ,each of the rows overlapping the space between the :slots in the other of said rows.
  • This configuration of slots fis clearly shown in FIGURE 3 of the drawings.
  • the chest -48 is also provided with a conduit 54 extending from the vertical side 47 and is connected by suitable air lines to :a vacuum pump 55.
  • a perforated pipe 56 Extending transversely across the conveyor and located :beneath the belt and between the chest 48 and pulley S31, is a perforated pipe 56 which is connected by suit- :able conduits, not shown, to an air pump, not shown, the perforations therein being arranged so that when air pres- :sure is applied to the pipe, the air blast issuing from the perfo'rati'ons will be directed in a direction upwardly :against the underside of the belt and forwardly towards :the calenders 12.
  • the pipe 56 is held rigidly in place by lbrackets 57 extending therearound and is connected by .bolts or by welding to the side frames 34 and 35.
  • roller 59 Secured to the side frame 35 and arranged so that it :may be extended transversely across and to be pressed downwardly upon the belt 29 over the perforated upper wall 50 of the chest 48 is a roller 59.
  • This roller is rotat- :ably supported on internal bearings 61, of a construction well known, and extending axially outwardly from the bearing is a shaft 63 which is pivotally supported inter- :mediate of its length on a transverse bearing shaft 64, :the latter being non-rotatably secured between the upper ends '66 of a pair of standards 67, the lower ends 68 of which are welded to a bracket 70 which is secured to lth side frame 35.
  • an :air piston and cylinder assembly 72 is also mounted on the bracket 76, the piston of which :is linked to the outer end 74 of the-shaft 63.
  • the piston :and cylinder assembly 72 is supplied through air conduits 75 with pressurized air and controlled by suitable valves, not shown, wherebythe piston may be actuated .to pivot the roller 59 about the bearing shafts 64 between :a position in which the roller is pressed downwardly ⁇ UPOH the belt and a position lifted upwardly therefrom.
  • a lead strip cutter 78 Also secured to the conveyor is a lead strip cutter 78.
  • 'Thecutter comprises a toothed knife 79 extending transwersely between a pair of rod-like supporting arms 81, the ends 82 of the arms 81: being rigidly secured to and .extending outwardly from said frames35 and 36 beyond pulley 30.
  • the belt 29, in accordance with the present invention is made of an air porous-material preferably a woven -:-fabric, as shown in FIGURE 2, the wave being coarse iv :so that the spaces between the'warp and'weft thereof will iifree'ly permit the passage of air therethrough.
  • the conveyor is rigidly supported between the drier :and the calenders' 12 ona supporting framework 88 so athat the belt 29 as it' passes over pulley 30 lies inwardly of the vertical plane, shown in dashed lines and num- Zbered 90 in FIGURE 1, which would be formed by the 1 paper web if the latter depended vertically downwardly ffrom the periphery of the drier-10' or from a; doctor 91 if the drier is so provided.
  • the conveyor is also inclined ".upwardly towards the drier' so that the upper run 49 of '.the belt extends twoards the first pass 26 between the :rolls 20 of the calenders. In this position, the conveyor f'f28lies below the normal path herein numbered 92 and shown in dotted lin'es in FIGURE 1, which is followed by the" paper web as it passes from the drier to the calenders.
  • a lead strip is formed, in a known manner, at an edge of the web lying above the conveyor. Due to the weight of the paper, the lead strip will pass over the upper run 49 of the belt and the end portion of the chest 48 adjacent pulley 30 and continue into the waste The belt 29 is then placed in operation and the roller 59 extended trans versely thereacross. Air pressure is supplied to pipe 56 and air exhausted from chest 48, The vacuum created in said chest results in the lead strip adhering to the moving belt so moving upwardly along the conveyor, and, the
  • the lead strip which is passed upwardly along the conveyor and under the roller 59 is lifted frornthe belt by the air blast issuing from .p'ipe 56 which extends it towards the first pass in the calender.
  • roller 59 is released and vacuum in the chest 48 eliminated.
  • the lead strip is then widened, in a known manner, to the full width of the web.
  • the conveyor in accordance with the present invention may be employed in substantially all cases wherein it isdesired to transfer thin sheets of pliable materialfrom one location and another in a positive and controlled manner.
  • Apparatus for transporting a lead strip ofpaper web from the drier of a paper making machine and feeding it into the first pass of the calenders of said machine comprising an elongated frame, an air pervious endless belt moyably mounted on the frame and having its upper run travelling from the drier to the first pass of the calenders and being arranged to receive the lead strip from the drier, a vacuum chest having a perforated top extending longitudinally of and below and in slidable contact -with the upper run ofthe belt, means for evacuating air from the chest so as to apply a vacuum at the undersurface of the belt and thereby cause the lead strip to cling to the latter, air blast means beneath and extending transversely of the upper run of the belt at the calender end thereof for directing a blast of air upwardly therethrough so as to lift the lead strip therefrom and extend-the latter towards the first pass of the calenders, and an elongated idling roller arranged beside the belt adjacent the belt adjacent
  • Apparatus as claimed in claim 1 including. cutter means at the drier end of the upper runofthe belt for engaging and severing lead strip surplusage as the lead strip is moved towards the calenders, said cutter ;means comprising an elongated knife having a serrated cutting edge and a pair of supporting. arms extending from the drier end of the frames supporting the knife in a downwardly sloped attitude spaced outwardly of and extending transversely of the drier end of the upper run ofthe'belt.

Description

Nov. 28. 1967 A. G. DEVLIN 3, 3
APPARATUS FOR CONVEYING LEAD STRIP FROM DHIERS TO CALENDERS IN PAPER--MAKING Filed Dec. 14, 1964 2 Sheets-Sheet 1 INVENTOR ANDREW G. DEVLIN M'EW Nov. 28, 1967 A. G. DEVLIN APPARATUS FOR CONVEYING LEAD STRIP FROM DRIERS TO CALENDERS IN PAPER-MAKING 2 Sheets-Sheet 2 Filed Dec. 14, i964 INVENTOR- ANJREW G. DEVLIN moaueve Patented Nov. 28, 1967 APPARATUS FOR CONVEYING LEAD STRIP FROM DRIERS T CALENDERS IN PAPER-MAKING Andrew G. Devlin, 981 Greendridge Crescent,
Victoria, British Columbia, Canada Filed Dec. 14, 1964, Ser. No. 417,961 2 Claims. (Cl. 162286) ABSTRACT OF THE DISCLOSURE Apparatus for conveying a lead strip from the drier of a paper making machine to the calenders thereof having an air pervious travelling belt which initially passes over a vacuum chest having a perforated top and then over an upwardly directed blast of air whereby the lead strip initially clings to the belt and then is lifted therefrom by the air blast.
breakage of the web or in starting the machine, the transfer of the web from the drier to the calenders has posed certain problems. In some instances, travelling ropes are arranged between the drum and the calenders into which a lead strip formed in the web is thrust and permitted to find its way into the calender rolls and, in some other instances, the web is quite often fed by hand into the calender rolls. In the first instance, it is usual to employ 3 air blasts to move a lead strip cut from the web into the calender rolls, a procedure which is quite often not effective and, in the second instance where the lead strip is fed by hand into the calenders, the danger to life and limb are ever present.
The purpose of this invention is to provide an apparatus by means of which the lead strip of the paper web may be accurately and positively fed into the calenders of a paper making machine and which is so constructed that the danger to the lifeand limb of the operator is reduced to minimal proportions.
The present invention comprises an air pervious traveling belt extending from the drier to the calenders, and
being arranged to receive the lead strip from the drier and to move it towards said calenders, means applying a is in full operation, the web passes directly from the driers to and through the calenders. The web extends as a shallow catenary therebetween and, due to its inherent tensile strength, requires no support. There are occasions, however, such as caused by breakage of the web or when operations are first initiated when a connection of the web between the drier and calenders must be established. Before this connection is made, the paper web which in many cases is over tweny feet in width, passes over the drier and downwardly therefrom into a waste bin. Established practice, to establish the connection of the web between the drier and calenders in the event of a breakage of the web, is to form a lead strip of approximately six inches in width at one side of the moving web and insert it by one means or another into the calenders. When the lead strip is established firmly in the calenders, it is then gradually widened, by known means, to the full width'of the web. It is to this means by which the lead strip is transferred from the drier into the calenders that the present invention is directed.
Referring now to the drawings and, specifically FIG- the numerals 10 and 12, respectively, and are, by reason of their known construction, shown in substantially diagrammatic representation. The drier 10 is shown mounted on a base 14, the latter being secured to a floor 16 in which an opening or slot 18 is formed to permit the paper web, in the event of breakage thereof, to pass downwardly therethrough and into a waste bin suitably provided.
vacuum at the undersurface of the belt to cause the lead strip to adhere thereto as the latter moves from the drier to the calenders, and means at the end of the transverse of the belt to remove the lead strip therefrom and passit into the first pass between the calenders.
' In the drawings which illustrate the embodiments of the invention, 7
FIGURE 1 is a view in elevation of the apparatus showing its disposition relative to the drier and calenders of a paper making machine,
FIGURE 2 is an isometric view of a fragmentary portion of the apparatus,
FIGURE 3 is another fragmentary isometric view of a portion of the apparatus at the drier end thereof, and
FIGURE 4 is a side view of the apparatus taken at the drier end thereof, showing the disposition of the lead strip thereon.
In the construction of a paper making machine, the drying drum or drier over which the paper web passes, is usually spaced some considerable distance away from the calenders in order to allow working space for the machine operators therebetween. When the paper making machine The calenders 12 are also shown as represented by a series of rolls 20 mounted on a frame 22 one above the other, the paper web normally passing from the top 24 of the drier into a first pass 26 in the calenders. Both the drier and calenders are driven by conventional means, not shown, and are provided with controls whereby the peripheral speed of each of them may be synchronized so that the tension on the Web, as indicated by the depth of the c'atenary it forms, may be properly adjusted.
The present invention which is concerned with the transfer of the lead strip formed, as hereinbefore men- 'tioned, from the drier to the calenders comprises an endless belt-type conveyor 28 which extends between the drier and calenders to carry the lead strip therebetween, and which is provided with means whereby the strip may be made to adhere thereto as it moves to the calenders and then be released from the conveyor to extend towards the first pass 26 so as to be caught therein and passed in the usual manner around the rolls 20 thereof. 7
The conveyor 28 comprises an endless belt 29 which extends between a pair of belt pulleys 30 and 31 mounted on shafts 32 and 33, respectively, the latter being secured for rotation between the opposite ends of a pair of spaced parallel support frames 34 and 35. Shaft 33 projects at one end 37 beyond the frame 35 and is provided with a small V pulley 38 which is driven by a V belt 39, the latter passing over another V pulley 40 which is secured concentrically to one of the calender rolls for rotation therewith. One of either of the V pulleys 38 or 40 is of the variable diameter type so that the linear speed of the belt may be synchronized with the peripheral speed of the calender rolls.
Also rotatably secured between the frames 34 and 35, are belt tighteners 42 which bear upwardly against the lower run 44 of the belt 29. Said belt tighteners are of known construction and will therefore not be described in detail.
The side frames 34 and 35 are connected as by welding to the vertical sides 46 and 47 of an elongated chest 48, the latter being located between the lower run 44 of the belt and its upper run 49 extending longitudinally of the conveyor from' a point adjacent pulley 31 to a point radjacent pulley 30, The chest has an upper wall 50 1oicated adjacent to and planarily parallel to the upper run 49 of the belt and said upper wall is perforated, the per- :forations therein taking the form of two rows of longiitudinally extending slots 52, the slots in each of the rows [being spaced longitudianlly apart and each of the slots fin ,each of the rows overlapping the space between the :slots in the other of said rows. This configuration of slots fis clearly shown in FIGURE 3 of the drawings. The chest -48 is also provided with a conduit 54 extending from the vertical side 47 and is connected by suitable air lines to :a vacuum pump 55.
Extending transversely across the conveyor and located :beneath the belt and between the chest 48 and pulley S31, is a perforated pipe 56 which is connected by suit- :able conduits, not shown, to an air pump, not shown, the perforations therein being arranged so that when air pres- :sure is applied to the pipe, the air blast issuing from the perfo'rati'ons will be directed in a direction upwardly :against the underside of the belt and forwardly towards :the calenders 12. The pipe 56 is held rigidly in place by lbrackets 57 extending therearound and is connected by .bolts or by welding to the side frames 34 and 35.
Secured to the side frame 35 and arranged so that it :may be extended transversely across and to be pressed downwardly upon the belt 29 over the perforated upper wall 50 of the chest 48 is a roller 59. This roller is rotat- :ably supported on internal bearings 61, of a construction well known, and extending axially outwardly from the bearing is a shaft 63 which is pivotally supported inter- :mediate of its length on a transverse bearing shaft 64, :the latter being non-rotatably secured between the upper ends '66 of a pair of standards 67, the lower ends 68 of which are welded to a bracket 70 which is secured to lth side frame 35. Also mounted on the bracket 76, is an :air piston and cylinder assembly 72, the piston of which :is linked to the outer end 74 of the-shaft 63. The piston :and cylinder assembly 72 is supplied through air conduits 75 with pressurized air and controlled by suitable valves, not shown, wherebythe piston may be actuated .to pivot the roller 59 about the bearing shafts 64 between :a position in which the roller is pressed downwardly \UPOH the belt and a position lifted upwardly therefrom.
Also secured to the conveyor is a lead strip cutter 78. 'Thecutter comprises a toothed knife 79 extending transwersely between a pair of rod-like supporting arms 81, the ends 82 of the arms 81: being rigidly secured to and .extending outwardly from said frames35 and 36 beyond pulley 30.
The belt 29, in accordance with the present invention, is made of an air porous-material preferably a woven -:-fabric, as shown in FIGURE 2, the wave being coarse iv :so that the spaces between the'warp and'weft thereof will iifree'ly permit the passage of air therethrough.
The conveyor is rigidly supported between the drier :and the calenders' 12 ona supporting framework 88 so athat the belt 29 as it' passes over pulley 30 lies inwardly of the vertical plane, shown in dashed lines and num- Zbered 90 in FIGURE 1, which would be formed by the 1 paper web if the latter depended vertically downwardly ffrom the periphery of the drier-10' or from a; doctor 91 if the drier is so provided. The conveyor is also inclined ".upwardly towards the drier' so that the upper run 49 of '.the belt extends twoards the first pass 26 between the :rolls 20 of the calenders. In this position, the conveyor f'f28lies below the normal path herein numbered 92 and shown in dotted lin'es in FIGURE 1, which is followed by the" paper web as it passes from the drier to the calenders.
4 In describing the operation of the machine it must first 'he. assumed that the paper web has been delivered as far 'as't'hela'st drier of the paper making machine and is vertically downwardly from the latter over doctor 4 t 91 and through the opening 18 in the floor 16 and into Waste.
A lead strip is formed, in a known manner, at an edge of the web lying above the conveyor. Due to the weight of the paper, the lead strip will pass over the upper run 49 of the belt and the end portion of the chest 48 adjacent pulley 30 and continue into the waste The belt 29 is then placed in operation and the roller 59 extended trans versely thereacross. Air pressure is supplied to pipe 56 and air exhausted from chest 48, The vacuum created in said chest results in the lead strip adhering to the moving belt so moving upwardly along the conveyor, and, the
portion of the lead strip now in the waste bin is automatically severed by the cutter 78.
The lead strip which is passed upwardly along the conveyor and under the roller 59 is lifted frornthe belt by the air blast issuing from .p'ipe 56 which extends it towards the first pass in the calender.
When the grip of the calender upon the lead strip is assured, roller 59 is released and vacuum in the chest 48 eliminated. The lead strip is then widened, in a known manner, to the full width of the web. Although particular reference has been hereinbefore made to the use of the conveyor in transferring the paper web issuing from the last drier of a paper making machine to the calenders, the use of the conveyor is not so limited.- The conveyor in accordance with the present invention may be employed in substantially all cases wherein it isdesired to transfer thin sheets of pliable materialfrom one location and another in a positive and controlled manner.
What I claim as my invention is; I J
1. Apparatus for transporting a lead strip ofpaper web from the drier of a paper making machine and feeding it into the first pass of the calenders of said machine, comprising an elongated frame, an air pervious endless belt moyably mounted on the frame and having its upper run travelling from the drier to the first pass of the calenders and being arranged to receive the lead strip from the drier, a vacuum chest having a perforated top extending longitudinally of and below and in slidable contact -with the upper run ofthe belt, means for evacuating air from the chest so as to apply a vacuum at the undersurface of the belt and thereby cause the lead strip to cling to the latter, air blast means beneath and extending transversely of the upper run of the belt at the calender end thereof for directing a blast of air upwardly therethrough so as to lift the lead strip therefrom and extend-the latter towards the first pass of the calenders, and an elongated idling roller arranged beside the belt adjacent the drier end thereof pivotally mounted for vertical pivotal movement between a position extending transverselypver the belt and lead strip so as to maintain the lead strip in engagement with the :belt whensaid leadstrip is;bei ng.movd to the c'alenders and a position clear of the lead strip to permit the latter to lift off the belt after it passes into the calenders. 4 v
2. Apparatus as claimed in claim 1 including. cutter means at the drier end of the upper runofthe belt for engaging and severing lead strip surplusage as the lead strip is moved towards the calenders, said cutter ;means comprising an elongated knife having a serrated cutting edge and a pair of supporting. arms extending from the drier end of the frames supporting the knife in a downwardly sloped attitude spaced outwardly of and extending transversely of the drier end of the upper run ofthe'belt.-
Keferences Cited UNITED ,STATES' PATENTS" 327,031 9/1885 Smith 271-24 1,369,124 2/1921 Pope l 162-255 2,529,184 9/1949 Pearson 22 -92 3,240,491 3/1966 Buccicone 2 71-74 S. LEON BASHORE, Primary Examiner,

Claims (1)

1. APPARATUS FOR TRANSPORTING A LEAD STRIP OF PAPER WEB FROM THE DRIER OF A PAPER MAKING MACHINE AND FEEDING IT INTO THE FIRST PASS OF THE CALENDERS OF SAID MACHINE, COMPRISING AN ELONGATED FRAME, AN AIR PERVIOUS ENDLESS BELT MOVABLEY MOUNTED ON THE FRAME AND HAVING ITS UPPER RUN TRAVELLING FROM THE DRIER TO THE FIRST PASS OF THE CALENDERS AND BEING ARRANGED TO RECIEVE THE LEAD STRIP FORM THE DRIER, A VACUUM CHEST HAVING A PERFORATED TOP EXTENDING LONGITUDINALLY OF AND BELOW AND IN SLIDABLE CONTACT WITH THE UPPER RUN OF THE BELT, MEANS FOR EVACUATING AIR FROM THE CHEST SO AS TO APPLY A VACUUM AT THE UNDERSURFACE OF THE BELT AND THEREBY CAUSE THE LEAD STRIP TO CLING TO THE LATTER, AIR BLAST MEANS BENEATH AND EXTENDING TRANSVERSELY OF THE UPPER RUN OF THE BELT AT THE CALENDER END THEREOF FOR DIRECTING A BLAST OF AIR UPWARDLY THERETHROUGH SO AS TO LIFT THE LEAD STRIP THEREFROM AND EXTEND THE LATTER TOWARD THE FIRST PASS OF THE CALENDERS, AND AN ELONGATED IDLING ROLLER ARRANGED BESIDE THE BELT ADJACENT THE DRIER END THEREOF PIVOTALLY MOUNTED FOR VERTICAL PIVOTAL MOVEMENT BETWEEN A POSITION EXTENDING TRANSVERSELY OVER THE BELT AND LEAD STRIP SO AS TO MAINTAIN THE LEAD STRIP IN ENGAGEMENT WITH THE BELT WHEN SAID LEAD STRIP IS BEING MOVED TO THE CALANDERS AND A POSITION CLEAR OF THE LEAD STRIP TO PERMIT THE LATTER TO LIFT OFF THE BELT AFTER IT PASSES INTO THE CALENDERS.
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US3799252A (en) * 1970-11-10 1974-03-26 W Soll Feeding device for a roller drier or the like
DE2636887A1 (en) * 1975-08-18 1977-03-10 Sidney C Rooney DEVICE FOR THE TRANSFER OF A GUIDE STRIP FOR A PAPER MACHINE O.AE.
US4022366A (en) * 1976-03-22 1977-05-10 Durad Machine Company Ltd. Sheet handling apparatus
US4087319A (en) * 1976-12-27 1978-05-02 Beloit Corporation Method of and means for sheet transfer to and embossing at a reeling station
FR2505897A1 (en) * 1981-05-15 1982-11-19 Valmet Oy MEANS FOR CUTTING AND GUIDING THE MARGINAL STRIP OF A CONTINUOUS SHEET OF PAPER, IN A PAPER MACHINE
US4566944A (en) * 1982-04-27 1986-01-28 Valmet Oy Apparatus for cutting a lead-in strip from a paper web in a paper machine
EP0226560A2 (en) * 1985-12-13 1987-06-24 Fibron Machine Corporation Paper tail cutter
US4692215A (en) * 1984-07-05 1987-09-08 Valmet Oy Apparatus for conveying a web lead-in strip in a paper machine
US4799997A (en) * 1987-08-06 1989-01-24 Westvaco Corporation System for sensing a discontinuity in a paper web and containing web puncturing means across the web width
US4818343A (en) * 1986-04-18 1989-04-04 Oy Tampella Ab Device for cutting off an edge strip and for guiding the edge strip in connection with the threading of a paper or board web
US4904344A (en) * 1989-04-17 1990-02-27 Beloit Corporation Automatic web threading apparatus and method
US4931141A (en) * 1989-07-06 1990-06-05 Consolidated Papers, Inc. Paper tailing device
US4997524A (en) * 1988-08-25 1991-03-05 Valmet-Ahlstrom Inc. Method and apparatus for transport of a web to be threaded
WO1992008005A1 (en) * 1990-10-24 1992-05-14 Fibron Machine Corp. Counter-rotating knife paper tail ripper
US5158648A (en) * 1988-09-26 1992-10-27 Weldon Scott B Apparatus for forming a movable threading tail
US5234549A (en) * 1988-09-26 1993-08-10 Weldon Scott B Apparatus for forming a movable threading tail
WO1999023304A1 (en) * 1997-11-04 1999-05-14 Valmet Corporation Arrangement of threading in a calender
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US6235156B1 (en) 1999-06-03 2001-05-22 Valmet Corporation Method for paper web transfer and transfer apparatus for paper web
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DE10009188A1 (en) * 2000-02-26 2001-08-30 Voith Paper Patent Gmbh Vacuum belt conveyor for paper web threading in production line, has vacuum blower positioned within the air-pervious endless belt loop to generate low pressure at inner side of conveying path
US6290817B1 (en) 1998-09-29 2001-09-18 Valmet Corporation Device for conveying and guiding a lead-in strip of a web in a paper machine
US20010050154A1 (en) * 2000-02-26 2001-12-13 Allen Broom Vacuum belt conveyor
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US20020053414A1 (en) * 2000-07-10 2002-05-09 Rudolf Beisswanger Method and apparatus for the transferring of a flexible material web
US6394331B1 (en) * 1999-06-29 2002-05-28 Voith Sulzer Papiertechnik Patent Gmbh Device and process for separating and transferring a leader strip
EP1245729A1 (en) * 2001-03-26 2002-10-02 Voith Paper Patent GmbH Method and device for transferring a web
US6648198B2 (en) 2000-11-14 2003-11-18 Voith Paper Patent Gmbh Vacuum belt conveyor
US20040112192A1 (en) * 2002-11-28 2004-06-17 Allan Broom Method and apparatus for transferring a paper web
US20040244217A1 (en) * 2001-08-22 2004-12-09 Pasi Ahvenainen Apparatus for leading a web threading tail over an empty space
US20050005747A1 (en) * 2002-12-12 2005-01-13 Voith Paper Patent Gmbh Method and apparatus for transferring a paper web
US20050161185A1 (en) * 2003-12-30 2005-07-28 Harald Weigant Device for stabilizing a paper web
US20050258701A1 (en) * 2001-07-13 2005-11-24 Voith Paper Patent Gmbh Construction and method of an electric motor drive
US7112901B1 (en) * 1999-11-16 2006-09-26 Voith Paper Patent Gmbh Construction and method of an electric motor drive
DE102008015628A1 (en) 2007-03-26 2008-10-02 Metso Paper, Inc. Material web production machine with web guiding system has means of force transmission with friction wheel which during web guiding is in contact with rotating machine element in form of roller
EP1972718A3 (en) * 2007-03-23 2009-08-05 Voith Patent GmbH Device for guiding or transferring a paper, cardboard or other fibre web
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US20140263804A1 (en) * 2013-03-14 2014-09-18 Georgia-Pacific Consumer Products Lp Air knife configured to improve rolling of paper product
US10513826B2 (en) * 2015-01-28 2019-12-24 Andritz Küsters Gmbh Method and device for making wet laid non wovens

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US3799252A (en) * 1970-11-10 1974-03-26 W Soll Feeding device for a roller drier or the like
DE2636887A1 (en) * 1975-08-18 1977-03-10 Sidney C Rooney DEVICE FOR THE TRANSFER OF A GUIDE STRIP FOR A PAPER MACHINE O.AE.
US4022366A (en) * 1976-03-22 1977-05-10 Durad Machine Company Ltd. Sheet handling apparatus
US4087319A (en) * 1976-12-27 1978-05-02 Beloit Corporation Method of and means for sheet transfer to and embossing at a reeling station
US4501643A (en) * 1981-05-15 1985-02-26 Valmet Oy Apparatus for cutting and guiding the marginal lead-in strip of paper web
FR2505897A1 (en) * 1981-05-15 1982-11-19 Valmet Oy MEANS FOR CUTTING AND GUIDING THE MARGINAL STRIP OF A CONTINUOUS SHEET OF PAPER, IN A PAPER MACHINE
US4566944A (en) * 1982-04-27 1986-01-28 Valmet Oy Apparatus for cutting a lead-in strip from a paper web in a paper machine
US4608124A (en) * 1982-04-27 1986-08-26 Valmet Oy Method for cutting a lead-in strip from a paper web in a paper machine
US4692215A (en) * 1984-07-05 1987-09-08 Valmet Oy Apparatus for conveying a web lead-in strip in a paper machine
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US4818343A (en) * 1986-04-18 1989-04-04 Oy Tampella Ab Device for cutting off an edge strip and for guiding the edge strip in connection with the threading of a paper or board web
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US5158648A (en) * 1988-09-26 1992-10-27 Weldon Scott B Apparatus for forming a movable threading tail
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US6003750A (en) * 1996-07-20 1999-12-21 Voith Sulzer Finishing Gmbh Process for guiding a web
WO1999023304A1 (en) * 1997-11-04 1999-05-14 Valmet Corporation Arrangement of threading in a calender
US6245198B1 (en) 1997-11-04 2001-06-12 Valmet Corporation Arrangement of threading in a calender
AT410328B (en) * 1997-11-04 2003-03-25 Valmet Corp ARRANGEMENT FOR THREADING IN A CALANDER
US6358366B1 (en) * 1998-01-30 2002-03-19 Metso Paper, Inc. System and method for threading a moist web in a pulp dryer or the like from one section to the following section
US6290817B1 (en) 1998-09-29 2001-09-18 Valmet Corporation Device for conveying and guiding a lead-in strip of a web in a paper machine
US6235156B1 (en) 1999-06-03 2001-05-22 Valmet Corporation Method for paper web transfer and transfer apparatus for paper web
US6394331B1 (en) * 1999-06-29 2002-05-28 Voith Sulzer Papiertechnik Patent Gmbh Device and process for separating and transferring a leader strip
US6270629B1 (en) 1999-08-13 2001-08-07 Voith Sulzer Papertechnik Patent Gmbh Web handling apparatus
US6425512B2 (en) 1999-08-13 2002-07-30 Voith Sulzer Papiertechnik Patent Gmbh Web handling process
US7112901B1 (en) * 1999-11-16 2006-09-26 Voith Paper Patent Gmbh Construction and method of an electric motor drive
US20010050154A1 (en) * 2000-02-26 2001-12-13 Allen Broom Vacuum belt conveyor
DE10009188A1 (en) * 2000-02-26 2001-08-30 Voith Paper Patent Gmbh Vacuum belt conveyor for paper web threading in production line, has vacuum blower positioned within the air-pervious endless belt loop to generate low pressure at inner side of conveying path
US6630057B2 (en) * 2000-02-26 2003-10-07 Voith Paper Patent Gmbh Vacuum belt conveyor
US7005036B2 (en) * 2000-07-10 2006-02-28 Voith Paper Patent Gmbh Method and apparatus for the transferring of a flexible material web
US6994773B2 (en) * 2000-07-10 2006-02-07 Voith Paper Patent Gmbh Method and apparatus for the transferring of a flexible material web
US20020053414A1 (en) * 2000-07-10 2002-05-09 Rudolf Beisswanger Method and apparatus for the transferring of a flexible material web
US20040016843A1 (en) * 2000-07-10 2004-01-29 Voith Paper Patent Gmbh Method and apparatus for the transferring of a flexible material web
US6648198B2 (en) 2000-11-14 2003-11-18 Voith Paper Patent Gmbh Vacuum belt conveyor
US6928912B2 (en) 2001-03-26 2005-08-16 Voith Paper Patent Gmbh Method and apparatus for transferring a web
US20050167065A1 (en) * 2001-03-26 2005-08-04 Voith Paper Patent Gmbh Method and apparatus for transferring a web
EP1245729A1 (en) * 2001-03-26 2002-10-02 Voith Paper Patent GmbH Method and device for transferring a web
US20020148874A1 (en) * 2001-03-26 2002-10-17 Wolfgang Drefs Method and apparatus for transferring a web
DE10115618A1 (en) * 2001-03-26 2002-10-02 Voith Paper Patent Gmbh Method and device for transferring a web
US7538458B2 (en) 2001-07-13 2009-05-26 Voith Patent Gmbh Construction and method of an electric motor drive
US20050258701A1 (en) * 2001-07-13 2005-11-24 Voith Paper Patent Gmbh Construction and method of an electric motor drive
US20040244217A1 (en) * 2001-08-22 2004-12-09 Pasi Ahvenainen Apparatus for leading a web threading tail over an empty space
US7264693B2 (en) * 2001-08-22 2007-09-04 Metso Paper, Inc. Apparatus for leading a web threading tail over an empty space
US20040112192A1 (en) * 2002-11-28 2004-06-17 Allan Broom Method and apparatus for transferring a paper web
US7089839B2 (en) * 2002-11-28 2006-08-15 Voith Paper Patent Gmbh Method and apparatus for transferring a paper web
US7117775B2 (en) * 2002-12-12 2006-10-10 Voith Paper Patent Gmbh Method and apparatus for transferring a paper web
US20050005747A1 (en) * 2002-12-12 2005-01-13 Voith Paper Patent Gmbh Method and apparatus for transferring a paper web
US20050161185A1 (en) * 2003-12-30 2005-07-28 Harald Weigant Device for stabilizing a paper web
US7384512B2 (en) * 2003-12-30 2008-06-10 Andritz Ag Device for stabilizing a paper web
EP1972718A3 (en) * 2007-03-23 2009-08-05 Voith Patent GmbH Device for guiding or transferring a paper, cardboard or other fibre web
DE102008015628A1 (en) 2007-03-26 2008-10-02 Metso Paper, Inc. Material web production machine with web guiding system has means of force transmission with friction wheel which during web guiding is in contact with rotating machine element in form of roller
DE102008002465A1 (en) 2008-06-17 2009-12-24 Voith Patent Gmbh Belt conveying device for transporting paper web ribbon from processing station to another station, has deflection rollers at upstream and downstream ends, and longitudinal guide element with guide rollers, where belt runs between rollers
US20140263804A1 (en) * 2013-03-14 2014-09-18 Georgia-Pacific Consumer Products Lp Air knife configured to improve rolling of paper product
US10071871B2 (en) * 2013-03-14 2018-09-11 Gpcp Ip Holdings Llc Air knife configured to improve rolling of paper product
US10202251B2 (en) 2013-03-14 2019-02-12 Gpcp Ip Holdings Llc Air knife configured to improve rolling of paper product
US10513826B2 (en) * 2015-01-28 2019-12-24 Andritz Küsters Gmbh Method and device for making wet laid non wovens

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