US2888048A - Shade cutter - Google Patents

Description

y 26, 1959 A. K. GAST ETAL 2,888,048

I SHADE CUTTER Filed June 20, 1955 3 Sheets-Sheet 1 ALBERT K. GAST ALBERT K. GAST, JR.

g-n5, Mral May 26, 1 A. K. GAST ET AL SHADE CUTTER 3 Sheets-Sheet 2 Filed June 20 1955 v OE INVENTORS: ALBERT K. GAST ALBERT K. GAST, JR.

ATT'YS May 26, 1959 A. K. GAST ET AL SHADE CUTTER 3 Sheets-Sheet 3 Filed, June 20, 1955 m T E m6 K T R E B L A ALBERT K. GAST, JR.

United States Patent SHADE CUTTER Albert K. Gast and Albert K. Gast, Jr., St. Joseph, Mich.; George G. Gast and Albert K. Gast, Jr., executors of said Albert K. Gast, deceased, assignors to Star Shade Cutter Company, St. Joseph, Mich., a partnership Application June 20, 1955, Serial No. 516,656

'2 Claims. (Cl. 144-4) This invention relates to a shade cutter of the type disclosed in Patents 1,964,984 and 2,326,293.

The present invention comprises a shade cutter of the type referred to above, but includes a motor for operating the shade holding chuck to hold the shade in position and to cause the same to be rotated. The invention embodies certain improved characteristics, including a spring pressed shade engaging member mounted on a slidable bracket, whereby the shade may be arranged in position without shifting the slidable bracket for the removal of the pin by a collet. The collet embodies improved characteristics so as to provide longitudinal translation as well as elfecting rotary movement for increasing or decreasing the size of the jaws for engaging and releasing the pin at the end of the shade pole. The collet also is adapted for resetting the pin into the end of the shade pole. New and improved means are provided to effect the cutting of the slat, whereby a new cutting surface is presented during each operation of the slat cutter. The chuck for supporting the shade comprises a sleeve which is adapted to be removably mounted on its supporting bearing and embodies a driven pulley so that the chuck is rotated by a belt over a pulley on the motor shaft. Other improved characteristics of the present invention relate to the knife and chamfering mechanism, the cloth shade trimmer, as well as certain safety devices and appliances to efiect properly the various operations necessary for reducing the shade size to the proper Width.

The primary object of the present invention is to provide a new and improved shade cutter which is preferably motor driven and embodying new and improved means for cutting the slat and to cause the slat to be cut to proper length according to the width of the shade from tip to tip, the length of the pole, and the width of the material.

A further object of the invention consists in the provision of a new and improved pin pulling and setting device whereby new and improved devices are provided for shifting the pin rolling and setting device and to effect proper operation of the collet member in cooperation therewith.

A further object of the invention consists in the new and improved trimming element fortrimming and cutting the size of the shade, with-which certain safety elements cooperate.

Another object consists in a new and improved saw mechanism for sawing ofi the pole to the proper desired length and embodying new and improved characteristics, including a chamfer member which is associated closely with the saw to permit a chamfering operation to follow each sawing operation without loss of time or motion.

A further object consists in the provision of a chuck arrangement embodying new and improved characteristics whereby the various parts may be assembled and taken apart for shipping, cleaning, adjustment, and for other purposes, as well as embodying improved means for tightening the chuck against the shade.

Still another object consists in the provision of a shield device enclosing certain of the operating elements and for causing the motor to be operated by means of the housing engaging a switch control element, whereby the motor will not operate the driving chuck until the housing is moved to a closed position.

Still another object relates to the provision of a new and improved slidable bracket member Which is provided with indicia for measuring the shade pole from tip to tip or from one end of the pole to the other, 'as well as the width of the material, the said bracket embodying a revolubly mounted member to receive one end of the shade, whereby the shade is in proper juxtaposition to effect the trimming, cutting and chamfering operations.

A still further object relates to new and improved means for mounting and supporting the motor on the base.

Numerous other objects and advantages will be apparent throughout the progress of the specification which is to follow.

The accompanying drawings illustrate a certain selected embodiment of the invention, and the views therein are as follows:

Fig. 1 is a detail side elevationof the improved shade cutter of the invention;

Fig. 2 is a detail top plan view thereof;

Fig. 3 is a detail sectional view on the line 33 of Fig.2;

Fig. 4 is a detail end elevation showing the pole cutter at the conclusion of the cutting stroke;

Fig. 5 is a' detail sectional view on the line 5-5 of Fig. 2;

Fig. 6 is a detail right hand elevational view of the slat cutter with the cutting blade removed;

Fig. 7 is a detail sectional view on the line 7-7 of Fig. 6; and

Fig. 8 is a detail exploded view showing the several parts constituting the various elements of the shade cutter and the manner in which they are assembled.

The particular construction herein shown for the purpose of illustrating the invention comprises a cast base 1 having supporting feet 2, 2, Fig. 1, upon which the base may be supported on a table or other structure. The base 1 includes an outwardly extending integral lug 3, the upper end of which is of a shape to receive a V-shaped supporting slide guide 4 in the form of an angle member having the lower end of the V received in the slot of the member 3 and its outwardly free end supported in a standard 5. The standard 5 is V-shaped at its top so as to receive the opposed legs of the V- shaped slide guide. The bottom of the standard 5 may be provided with an outwardly extending foot 6 to receive fastening means such as screws for securing the outer free end of the table or support. Thus, when the screws or other fastening devices are passed through the feet 2 and 6, the device may be securely fastened to a table, bench, or other supporting structure. A slide bracket 7 is adapted to be slidingly mounted along the slide guide 4 and comprises guiding ledges 8, 8 arranged on opposite sides of the V-shaped slide guide 4 and extending on opposite sides of the legs 9, 9 of the V- shaped slide guide -4, Fig. 2. These members 8, 8 are provided with grooves to receive the upper edges of the sides 9, 9 of the member 4 and are connected across the top thereof by an integral arch-like member 10, Fig. 2. A slat support 11in the form of a Z-bar is fastened to a part of the member 4 and includes an end part 12, against which the end of the shade slat is adapted to bear. The forward end of the slat is adapted toextend through an opening 13 in a rigid casting 14 fixed to the frontsideofthe upstanding base aesaoes 1, Figs. 4 and 6. A slat cutter blade 15, in the form of a disk and having a relatively free rotating sharp outer peripheral surface, is connected by a set screw 16 to a handle member 17, Fig. 6. The handle member, in turn, is pivoted at 18 to a one-piece bracket arm 19 which is secured to the casting 14. The casting 14 is provided with an arcuate slot 29 into which the guiding end 21 of the set screw 16 extends. The handle 17, being pivoted at 13 to the rigid bracket 19, carries with it the cutting disk 15, Fig. 8, and, inasmuch as the end 21 of the set screw 16 is received in the arcuate slot 25, the cutting blade 15 will be moved in an arcuate orbital path; and, inasmuch as the cutting disk 15 is shifted in such a path by the operation of the handle 17 when the disk is cutting through a slot, the disk will not always rotate the same distance forwardly and rearwardly upon movement of the handle 17, but is likely to shift in arcuate increments and, therefore, a fresh cutting surface is presented for each slat.

The bracket member 7 is provided with a housing portion 22 arranged below the arcuate connecting part it Fig. 5, and below the top thereof, but integrally connected with the sides to provide an abutment 23 having a central opening 24 provided therein. The member 23 is adapted to abut against the end of a shade pole, and is centered by means of the opening 24 which receives the tip of the shade pole at the spring end thereof. The member 22 includes a coil spring 25, Fig. 5, so as to normally urge the member outwardly, as shown in Fig. 5, but is free to be pushed inwardly against the tension of the spring 25. This member 23 is adapted for cooperation with a pin drawing and resetting device 26, Figs. 1, 2, 4 and 8.

The pin pulling and resetting device 26 comprises a handle 27 which is fixed to a shaft 28 and received within a hollow barrel-like member 29 of a casting 30. The handle 27 is locked to the shaft 28 by means of a set screw or any other fastening means, and the casting 343 is secured in place by an integral flange 31 secured to the base 1 by a set screw 32. The casting 30 also includes a longitudinal barrel-like member 33 which is integral with the part 29 and at right angles thereto. T he members 29 and 33 are hollow, there being a longitudinal bore 34 provided in the member 33 to receive a longitudinal stem 35. This longitudinal stem 35 is provided with spaced cutouts 37 along one end thereof to provide threads which are adapted to engage the longitudinal threads 38 on the end of the shaft 28. The shaft 28 is adapted to be inserted in the hollow member 29 with the threads 38 on the end thereof engaging the cuts 37 so that, during movement of the handle 27, the member 38 will be given rotative oscillatory movement and thus cause horizontal translation of the member 35, Fig. 8.

The member 35 is provided with a hole 39 extending completely therethrough to receive a screw 40 having a collet end 41. The threaded end 42 of the screw 40 threadedly engages the threads 43 on the centrally positioned opening in the thumb nut 44. The collet end 41 of the screw 40, Fig. 8, comprises a plurality of spaced fingers 45 which are arranged at the forward end 46 of the barrel member 35, and these fingers 45 are generally outwardly flared at the lower end thereof, as indicated at 47, and are arranged in the conical shaped hollow end 48 at the outer end of the opening 39, Fig. 8. The screw 49 is also provided with a flat 49 which is adapted to be engaged by a set screw so as to prevent the screw 41} from rotating in the opening 29 of the barrel 35 when the thumb nut 44 is rotated. Thus, when the wing nut 44 is rotated in one direction, the screw 40 will be given limited longitudinal movement without turning, and because the ends 45 are relatively flexible and normally spring apart, the fingers 45 of the screw 40 will be moved longitudinally and be guided by the conical surface 48. Thus, when the wing nut 44 is rotated in one direction, the screw 49 will be pulled inwardly and tend to bring the fingers 45 together, but when the wing nut is rotated in an opposite direction, the screw 40 will be translated outwardly and spring apart, leaving a suflicient opening to receive the pin of the shade. After the pin end of the shade is located in position, the handle 27 is operated to bring the stem 35 into engagement with the end of the shade roller with the pin of the shade roller projecting into the opening between the fingers 45. The wing nut 44 is then rotated to cause the fingers 45 to grasp the pin on the shade roller. The handle 27, when moved to an opposite direction, will cause the stem 35 to be retracted and cause the pin to be pulled from the end of the shade pole.

The forward end of the casting 3%, Fig. 8, is provided with a flared end 50 which is dish shaped or conical at its inner surface and acts as a guide or centering device for centering the pin end of the shade pole. This outer flared end 549 of the casting 38 is provided with a notch 51 to permit the pin end of the shade pole to be placed easily in position in the pin withdrawing and resetting device 26 while the opposite end of the shade roller is still in abutting engagement with the abutment member 23, Fig. Therefore, when it is desired to withdraw the pin from the shade pole, the square tip at the spring end of the roller is engaged against the member 23 on the bracket member 7 and the bracket member is locked to the V-shaped or angle guide 4. The shade may be then brought to proper position with respect to the pin remover and resetter 26 by merely pushing the shade roller to the left, Figs. 1, 2 and 6, the abutment member 23 being shifted outwardly against the tension of the spring 25, whereupon the pin end may be easily inserted in the notch 51. The shade roller is then in proper position, and by shifting the stem 35 outwardly toward the end of the shade to contacting relationship, the wing nut 44 is operated to cause the collet to grasp the pin. After the pin has been so grasped, the handle 27 is moved in a reverse direction, whereupon the stem 35 is moved outwardly, carrying the collet with it, and the collet grasphug the pin, whereupon the pin will be withdrawn from the shade pole. In resetting the pin in the pole, the operation is thus reversed.

The bracket '7 includes an integral section extending transversely thereacross, but is split adjacent one side of the barrel 22, thereby providing relatively flexible ends whereby the slide engaging sections 8, 8 thereof are normally spread apart, but are adapted to be clamped together against the sides of the l-shaped member 4 for locking the bracket 7 in adjusted position.

The means for so locking the bracket 7 to the guide 4 comprises a bolt 52, Figs. 1, 2 and 5, which extends through the bracket on opposite sides thereof to impinge or release the sections 3 toward and from the edges of the V-shaped member 4. The bolt 52 has its head arranged at the far side of the guide 4 so that the bolt will not turn, Figs. 1 and 2. The other end of the bolt 52 is threaded and comprises a nut 53, Figs. 1 and 2, through which a slidable operating handle or bar 54 extends. Therefore, when the handle 54 is rotated in one direction to unlocked position, the bracket 7 is free to slide along the member 4, but when the handle 54 is operated to turn the nut in a reverse direction, the slide members 8, 8 will be locked tightly against the xi-guide 4.

The bracket member 7, Figs. 1 and 2, has an arm 55 integrally secured thereto on one side thereof. The arm 55 has a hub 56 at its upper end to receive a shaft 57 which is longitudinally slidable therein, but which is locked in adjusted position by means of a set screw, Fig. 2. The inner end of the shaft 57 carries a disk-like meinber 53, Figs. 1 and 2, having a tapered nose 59 which is provided with a shallow opening therein to receive the square pin at the spring end of the shade pole. The

member 58 is rolling on the shaft 57, but the extreme forward end carries a rigid washer-like member 60 against which the end of the shade roller abuts. The center of the shaft 57, as well as the conical nose 59, is in direct axial alinement with the center of a supporting bearing member 61 which is carried by a standard mounted on the upper surface of the base member 1, Figs. 1, 3 and 8.

This bearing member 61 is adapted to receive an elongated bearing sleeve 62 upon which a chuck 63 is fastened, the chuck 63 including a rim-like portion 64 mounted on the end of the sleeve 62, Figs. 3 and 8. The rim 64 is provided with an upstanding peripheral annular rib 65. An annular shoulder 66 is formed by milling an edge of the bearing member 61, the annular shoulder 66 forming a rim about the bearing member and of a diameter less than the annular rib 65, whereby a guideway 67 is formed between the rib 65 and a washer 99 fitted over the sleeve 62 and abutting against the shoulder 66 of the bearing member 61. I

The chuck 63 comprises a pair of oppositely disposed jaws 68 and 69, Fig. 8. The jaw 68 is secured to an annular ring 70 which is moved inwardly and outwardly by means of a set' screw '71 having a knurled knob 72, the

threads 73 of the screw 71 engaging the ring 70 so as to draw the jaw 68 inwardly and outwardly. The ring 70 is provided with a bifurcated end 74, through which a rigid guide screw 75 is arranged in the slot between the legs thereof to hold the ring 70 in position so that, upon' rotation of the screw 71, the jaw 68 will move inwardly or outwardly in a straight line. The jaw 69 has slotted surfaces engaging guide flanges 76, 76 on the ring 70. The inner end of the set screw 71 is hollow and is provided with internal threads which engage exterior threads on the inner end of a threaded stem 77 fixed to the jaw 69. Therefore, the rotation of the set screw 71 will cause the jaw 69 to move inwardly or outwardly as Well as moving the ring 70 inwardly or outwardly, and thus move the jaws 68 and 69 toward or away from each other to allow insertion of a shade roller therebetween and to' permit the shade roller to be locked tightly in position within the jaws 68 and 69 of the chuck 63.

The sleeve 62 extends outwardly from the bearing member 61 on the standard, and a driving pulley 78 is connected to the projecting end of the member, Fig. 3. The pulley 78 has a split collar 79 which terminates at adjacent ends by ears 80, 80 to receive a screw 81 for locking the band 79 tightly against the outer end of the sleeve 62. The pulley '78 is driven by a belt 82 from a pulley 83 on the shaft of a motor 84, Figs. 4 and 8.

The motor 84 has a yoke 85 connected thereto and this yoke 85 is connected to the base 1 by means of a hinge 86, Fig. 4. The motor is adapted to be held in outward position by the tension of the belt 82 because of the weight of the motor itself, and the motor may be adjusted by means of a slide bolt 87 engaging the yoke 85, Figs. 1 and 2. The slide bolt 87 is locked in adjustable position by means of a lock nut 88.

Electric conductor means 89, Fig. 2, leads from a source of electric supply to a normally open switch 90, Fig. 8,

arranged inside of the base 1, and the electric conductor means includes connectors leading from the switch 90 and electrically connected to the electric motor 84. The switch is operated by a switch push button 91 arranged in a tube 92, and this switch is adapted to be operated by a projection or pin 93 on a guard hood 94, Figs. 1 and 2.

The hood 94 is adapted to be rotated to a downward position, whereupon the projecting pin 93 will engage the switch button 91 inside of the tube 92 and close the switch 90 to cause the current to flow to the motor, and thus drive the chuck 63 by means of the pulleys 83 and 78 and the belt 82, Figs. 1, 2, 4 and 8.

The hood 94, Figs. 1', 2 and 3, comprises an annular web 95, Figs. 1 and 3, which bearingly engages an annular recess 96 in the bearing member 61. The inside of the hood is provided with a pin 98, Fig. 3, on one side of the web 95 to limit the r'evoluble movement ofthe hood 9 in one direction by reason of the pin engaging a part of the standard to which the bearing member 61 is mounted. The movement of the'hood in the reverse direction is limited by the engagement thereof with the tube 92 when the switch operating pin 93 operates the switch 90. The hood 94 is provided as a protective means, and covers the chuck 63 and the pulley 78. It is, however, cut away at certain places so as to permit operation of certain of the operating members, such as the shade trimmer and pole cutter, which are described later. A washer 99, Fig. 8, which is an oil ring, is arranged between the annular rim 64 and the bearing member 61, and a second oil ring or washer 100 is arranged about the sleeve 62 between the pulley 78 and the outer surface of the bearing member 61. I

An oil cup or oiler stem 101, Figs. 1, 3 and 8, is arranged on top of the bearing member 61 and receives one end of a guard 102, Figs. 2 and 8, to hold the upper end of the guard in position. The lower end of the guard 102 is locked to the base by a thumb nut (not shown), which engages a bolt on the base 1.

The shade is adapted to have its outer end (to the left, Figs. 1 and 2) engaging the members 59, 60, and its other end locked in the chuck 63. When the hood 94 is moved downwardly, the pin 93 on the hood 94 will engage the switch 90 and cause the motor 84 to operate. The revoluble movement of the hood 94 is operated by means of a handle member 103 mounted on the upper surface thereof, Fig. 4. The hood 94and the guard 102 covers the certain operating parts, guarding the same, as well as preventing accidental access to the belt 82 and the pulley 78.

After the shade has been locked by the chuck 63, the shade fabric or material may be cut by a shade trimmer 104, Figs. 1, 2, 4 and 8. The shade trimmer 104 comprises an arm 105, Fig. 8, mounted on the front end of the base 1, the arm 105 having a split lower collar 106 which engages an'internally threaded tube 107 fixed to the front side of the base 1. The upper end of the arm 105 terminates in a circular guard portion 108, Fig. 8, having a cutout 109. A circular shade trimmer cutter blade is locked to the circular guard part 108 by means of a bolt, and locked in position by a thumb nut 111. A revolubly mounted mask 112 is adapted to guard the blade 110 when the blade is in its normal rest position. The mask 112 is mounted on the bolt to which the nut 111 is attached, and is connected to an arm 113. The lower end of the am 113 is pivotally mounted at 114 to the base 1. Thus, when the trimmer structure, designated generally by the numeral 104, is moved to swing the arm 105 from the normal position shown in Fig. 4 to its upper cutting position, the arm 113 for the mask 112 will cause the mask 112 to be rotated and no longer mask the blade 110, and, therefore, permit the cutter blade 110 to be brought intocutting relationship with the rotating shade and thus cut the shade down to the depth of the material on the shade pole.

After the shade has been trimmed by the shade trim mer 104, a pole cutter 115 is provided for cutting the pole to the desired proper length. This pole cutter 115, Fig. 8, comprises an arm 116 having a split collar 117 engaging the hollow tube 107 which extends outwardly from the casting, the tube 107 also forming the mounting for the trimmer 104. An integral circular disk 118 is formed on the upper end of the arm 116 and has an overhanging rim 119 to receive a pole saw 120. The saw 120 is provided with a plurality of slots 121 which provide spaced separate cutting edges 122 and, therefore,

the saw is a four-segment cutting tool which has a bevel on it. The saw 120 is mounted on a bolt 123 which extends inwardly through the saw 120 and through a central opening 124 in the disk member 118. An outer knurled lock nut 125 is adapted to threadedly engage the end of the bolt 123 to hold the parts in assembled relationship. A handle 126 is mounted on the bolt 123 for limited rotation, the bolt 123 passing through the saw '120, the

disk 118 and a part 127 forming a guard on the handle 126 adjacent its hub. The nut 125 maintains the various parts of the pole cutter 115 together, and they all operate together as a unit. The disk 118 is cut out at 128 to bare a segment 122 of the saw 120 and to permit the end of the shade pole to pass therethrough during the cutting operation. This opening or cutaway 123 is normally closed by the mask 127, whereby the saw 120 is always masked except when the cutter 115 is operated to cut the shade pole. The mask 127, Fig. 8, is provided with a peripheral extension 129 which overhangs the peripheral rim 119 of the disk member 118 and therefore normally closes the cutout 128. As the handle 126 is moved forwardly to bring a cutter segment 122 of the saw 124) into sawing engagement with the pole, the lower edge of the projecting rim 129 of the mask 127 will engage the arm 116. Continued movement in a forward direction of the handle 126 (toward the operator) will move the arm 11s, and the other attached elements of the cutter, to cutting position. A spring 130 has one end attached to the mask 127 and its other end engaging a hollow stop pin 131 fastened to the disk 118, whereby the mask 127 is normally caused to be held in masking position because of the action of the spring 130 and keep the cutout 128 covered. The hollow stop pin 131 receives a small bolt 132 which passes through a slot 121 in the saw 120 and through an opening 133 in the disk-like member 11%. The bolt 132 is provided with an enlarged head 134 which is arranged in one of the slots 121 between the saw segments 122 and threadedly engages the pin 131 to lock the saw 120 in its adjusted position. When it is desired to bring a new cutting segment 122 into cutting position, the bolt 132 is removed so that the saw may be rotated to bring a different cutting segment 122 to cutting position. Therefore, any one of the several (four) blades or cutting segments 122 of the saw 120 may be shifted to bring a new cutting segment 122 into position. A circular washer 135, Fig. 8, is arranged on the inside of the saw disk 120, and is locked in place by the bolt 123 which threadedly engages the nut 125. This Washer-like member 135 is adapted to engage the shade pole after the same has been cut by the cutter 120 and provides chamfering means for chamfering the cut end of the shade pole so as to permit the usual metal cap to be applied easily over the pole end.

The V-shaped guide 4, Figs. .2 and 5, is provided with a scale 136 on the inside of one of the legs thereof, the scale 136 carrying indicia, such as inches, with calibrations designating parts of inches, such as eighths. The scale 136 is adapted to cooperate with other indicia 13? on a plate 133 mounted on the inner leg of one of the members 8 on the bracket 7. The indicia on the plate 138 are clearly shown in Fig. 5, and include pointers designating tip-to-tip length, pole length, and shade material width. If the shade material is to be trimmed to thirty-two inches, as shown in Fig. 5, the pole length will be 32% inches, and the length of the shade from tip to tip will be 33% inches. Therefore, the scale 136 cooperating with the indicia 137 provides any definite length in proportion to the other dimensions. If the device from tip to tip is 33% inches, the pole should be 32 /8 inches, and the shade material should be 32 inches, as shown in Fig. 5. The shade slat is also cut to its proper desirable length because of the slat support 11, 12 on the V-guide 4, Figs. 1 and 2. A supporting ledge 139, Figs. 1, 2 and 8, on the slat cutter is mounted on the base, at the slat cutter opening 13. Therefore, there needs to be only one setting of the bracket '7 to provide for all the cutting sizes. This arrangement insures that the slat at the bottom of the shade will be theproper length, the material will be cut for the proper width, and the pole will be sawed off at the proper length. Also, the overall length from tip to tip of the completed shade will be known.

Means are also provided to remove the usual metal end cap from the end of the shade pole. This means may comprise a circular disk 1411, Figs. 1, 2, 4 and 8, arranged at the outer end of the shaft 107 to which the arm 116 is mounted. The disk 140 has a sharp peripheral edge and is adapted to be engaged by an edge of the metal cap by placing the edge of the cap under the disk and then giving a pull or a jerk to the pole to cause the end cap to be removed after the pin has been previously pulled.

The invention has innumerable new advantages and embodiments over prior structures, and the use of the present device will effect all the necessary cutting operations successively upon a simple setting of the bracket '7 and then locking the bracket in its selected position according to a predetermined length selected. When the bracket is once set and locked, all the operations may be carried on from that one point, such as the shade cap may first be removed by engagement with the disk member 141%). The shade slat may then be cut by the slat cutter by having one end resting on the member 11 and by abutting it against the edge 12. The next operation may be the pulling of the pin, which is done by the collet pin pulling structure 26. After the pin pulling operation has been completed, the rolled shade is mounted against the member 60, passed through the chuck structure 63, and then clamped in position. When the hood 94 is oscillated downwardly, the motor will start to operate and the shade trimmer 104 is brought into operation for severing the rolled shade material on the pole. At the conclusion of this trimming operation, the pole cutter is operated to cut the shade pole, and a continued forward pulling motion of the cutter will cause the cut end to be chamfered. The mounted shade then may be removed from the chuck and again placed in position to be operated by the collet for the purpose of causing the pin to be reinserted in the end of the pole after the metal cap has been applied over the cut chamfered end. The device embodying the presout various improvements permits a simple routine of operations to be carried on in consecutive order without any waste of time or doing any changing or resetting. The device is relatively inexpensive in operation, it is safe to operate in view of the various safety mechanisms applied thereto, and it is not likely to get out of order. Also, the elements, being mostly cast pieces, permit the entire device to be made readily and economically.

Changes may be made in the form, construction and arrangement of the parts without departing from the spirit of the invention or sacrificing any of its advantages, and the right is hereby reserved to make all such changes as fall fairly within the scope of the following claims.

The invention is claimed as follows:

1. In a shade cutter having a supporting base and a rotatable shade holding chuck mounted on said base, means for cutting a measured length of pole from a shade, said means comprising an upstanding arm pivoted to said base, a stationary cutting tool carried on the upper free end of said arm, a shield on said arm covering most of said cutting tool but having a notched portion for baring the tool, a mask pivotally mounted on said shield and normally biased over said notched portion thereof, a handle mounted on said mask in spaced relation to its pivot, whereby initial actuation of said handle pivots said mask away from said notched portion to bare the tool and further actuation of said handle pivots the arm and tool into operative position toward the rotating axis of said chuck.

2. In a shade cutter having a supporting base and a rotatable shade holding chuck mounted on said base, means for cutting a measured length of pole from a shade, said means comprising an upstanding arm pivoted to said base, a disc-shaped stationary cutting tool carried on the upper free end of said arm having a plurality of circumferentially spaced cutting edges, a shield on said arm covering most of said cutting tool but having a notched portion for baring the tool, a mask pivotally mounted on said shield and normally biased over said notched portion thereof, a handle mounted on said mask in spaced reiation to its pivot, whereby initial actuation of said handle pivots said mask away from said notched portion to bare the tool and further actuation of said handle pivots the arm and tool into operative position toward the rotating axis of said chuck.

References Cited in the file of this patent UNITED STATES PATENTS 344,926 Stevens July 6, 1886

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