US2524533A - Trouser bottom stop attaching machine - Google Patents

Description

Oct. 3, 1950 I 1.. H. N IORIN 2,524,533 I TROUSER BOTTOM STOP ATTACHING MACHINE Filed Feb. 25, 1949 4 Sheets-Sheet 1 INVENTOR I Laws /7f Mom/v ATTORNE Oct. 3, 1950 L. H. MORIN 2,524,533

TROUSER BOTTOM STOP ATTACHING MACHINE Filed Feb. 25. 1949 v 4 Sheets-Sheet 2 FEMEW-FK INVENTQR Laws 7. Mam/v BY ATTORN Oct. 3, 1950 H. MORIN TROUSER BOTTOM STOP ATTACK-ENG MACHINE 4 Sheets-Shaet 4 Filed Feb. 25, 1949 4 mm m M WM m 6? wfi A m w w w m Patented Oct. 3, 1 950 UNITED STATES PATENT OFFICE TROUSER BOTTOM STOP ATTACHING MACHINE Louis H. Morin, Bronx, N. Y.

Application February 25, 1949, Serial No. 78,256

9 Claims. 1 This invention relates to machines for attaching what is generally known as bottom stops, to one end of separable fastener stringers in permanently uniting said stringer ends, and particularly to machines for attaching such bottom stops in the application of separable fasteners to trousers. Still more particularly, the invention deals with a manually operated machine of the character described employing as an operating medium a reciprocating cam, manually moved in one direction in performing the complete cycle of operation of the machine, namely in blanking, shaping and attaching an end stop and wherein the parts are returned to normal position by automatic means, preparatory to performance of the next function or operation of the machine. The novel features of the invention will be best understood from thefollowing descriptions, when taken together with the accompanying drawings, in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each of the views; and in which: Fig. 1 is a perspective view of a machine made according to my invention, with parts of the construction broken away.

Fig. 2 is a front view of the upper operating head portion of the machine, on an enlarged scale, with parts of the construction brokenaway.

Figs. 2--AB and C are diagrammatic views illustrating operation of the pawl and ratchet mechanisms of the machine.

Fig. 3 is a section on the broken line 3--3 of Fig. 2, showing parts in a different position.

Fig. 4 is a view looking in the direction of the arrows 44 of Fig. 2, on an enlarged scale.

Fig. 5 is a partial section on the line 5-5 of Fig. 2, on an enlarged scale. 1

Fig. 6 is a section on the broken line 6-6 of Fig. 2.

Fig. '7 is a section on the line 'I-Tof Fig. 2.-

Fig. 8 is a section on the line 88 of Fig. 2.

Fig. 9 is a detailed perspective view showing part of the forming tools of the machine.

Fig. 10 is a detailed view of one end of the work-piece strip from which the blanks are formed, indicating the method of blanking each end stop.

Fig. 11 is a perspective View of an end stop, in the position assumed or shaped, as seen in Fig. 13 of the drawing.

Figs. 12 to 15 inclusive, are diagrammatic views showing the successive steps of operation of the tools in blanking, bending and attaching the end stops.

ent invention resides in so forming each staple from the ribbon or wire, as to eliminate the formation of waste by blanking the staple in the manner later described. It is also'a feature of my invention to provide a simple and economical machine structure which is substantially foolproof in operation, so that machines of this type and kind can be placed at the disposal of various manufacturers and utilized in attachment of bottom" stops to separable fastener stringers. Furthermore, the machine is so designed as to facilitate arrangement of garments in the machine in attaching the bottom stops to stringers mounted in the garment and particularly, in reaching in restricted corner portions, such as the bottom stop of stringers as applied to trousers. To this end, the clinching anvil of the machine is mounted ona protruding arm which is relatively narrowin construction, thus providing ample room around the anvil and arm for arother support as and when th column 20 is dispensed with. At the lower end of the column 20 are flared angle-iron footpieces 24 to provide a widespread support on a floor and pivotally mounted at the rear of the footpieces, as seen at 25, is a foot-treadle 26 with which is coupled an operating link or rod 21. A spring 28 is employed between the treadle and a fixed pin 29 on the column 2ll and this spring normally supports the treadlein raised position and also operates to return the operative parts of the mechanism 22 to their normal position.

The'mechanism 22 comprises a frame 30 which is open at the back, as indicated at 3|, one side wall of the frame having an elongated aperture 32 through which an arm 33 of an operating lever 34, note Fig. 3, passes, the link 21 being pivoted to the free end of the arm 33, as seen at 35. The frame has a forwardly directed upper or head portion 38 having a transverse slide-way or channel 3! therein, in which is arranged a reciprocating cam plate 38. The lower portion of the frame has in spaced relation to the head 35, a forwardly directed and relatively narrow arm 39 arranged beneath the head and spaced therefrom by a large recess 40, which provides free access to a clinching anvil or other tool M, supported on and protruding upwardly from the arm 39, as clearly seen in Figs. 1, 2 and 3 of the drawing.

Mounted on the forward end of the head is a slide supporting plate 42 which closes the recess 3'1 and retains the cam plate 38 in position. Extending upwardly from one side of the head 36 is a bracket GS having a pin or shaft 44 forming v a support for a spool 35, containing the metal strip or wire it used as the stock from which staples are .to be formed. Suitably supported in the lower left corner of the head or the plate 12 thereon, is a curved guide tube 41 for guiding the fed stock into predetermined position in the machine, as later described. The foregoing completes the general machine assemblage, as illustrated in Fig. 1 of the drawing.

Considering Fig. 2 of the drawing, it will be seen that the reciprocating cam plate 38 has three vertically arranged cam grooves, as at 43, 45 and til, the groove 48 controlling the, wire feed, the groove 29 controlling operation of the punch and the groove 58 controls the operation of the blanking and bending tools. The upper edge of the cam plate 38 at its right-hand end portion, as seen in Fig. 2, has a serrated ratchet portion 5! in conjunction with which a pawl 52 operates in controlling feed movement of the cam plate 38. The pawl 52 is pivoted to the head as seen at 53, and a coil spring 54 is employed to normally maintain the pawl in the perpendicular position seen in Fig. 2. The pawl and spring are arranged in a recessed portion 55 of the head, and are concealed for the most part by the plate 52.

At each end of the rack portion 5!, the cam plate 38 has recesses 56 and 5'. in both of which the pawl 52 is permitted to maintain the perpendicular position, as seen in Fig. 2 and also in Fig. 2B. In the manual operation of the cam plate 38, to actuate the various mechanisms of the machine, the plate moves in the direction of the arrow 58, Fig. 2A, or in other words, from left to right, as seen in Fig. 2, and in this operation, the pawl 52 ratchets over the rack by being inclined in the direction seen in Fig. 2A. It will thus be apparent that full and complete motion of the cam plate 38 must be accomplished before the cam plate can be returned to its normal position, as shown in Fig. 2. In other words, should an operator accidentally, or otherwise, stop the feed progress of the cam plate at any position, the same will be held in such position until the treadle 26 is depressed sufiiciently to complete its stroke movement. At the completion of its stroke movement, the pawl 52 moves intothe recess 5'5, Fig. 2B, then upon release of the treadle 23, the cam plate 38 will move in the direction of the arrow 59, Fig. 2-C and in this movement, the pawl 52 ratchets' freely over the tooth or ratchet surface 5|. On completing this return movement, the pawl 52 will then move into the recess 56 and the machine is in 4 position for performance of another operation.

The lever 34 is swingable on an axis 63 in the frame 36, note Fig. 3, and the other arm 5! of the lever has a socket 62 for a pin 63 which carries a shoe 64. The shoe 64 operates in a vertical elongated aperture 65 in the cam plate 38 in the movement of the cam plate into its several positions. The arm, including the pin 83 thereof, operates in an arc-shaped opening 86 in the head 36 and at one end of said opening is an adjustable stop screw 6?, note Fig. 2, which forms a stop limiting stroke movement of the cam plate 38, as well as the treadle 26.

At 68 is shown a feed slide, arranged in a recessed portion 89 of the plate d2, the slide carrying a roller 70 which operates in the groove 68 of thecam plate 38. On the slide 68 is pivoted a feed pawl ii, normally urged by a spring-pressed pin 1'2 in position to wedge the stock 46 against a shelf or flange portion l3 on the slide, so that as the slide moves downwardly by virtue of the drop as in the groove 48, the stock 46 is fed through the tube 4'! to an advanced position beneath the tools, as later described, and sufficiently to form the next successive staple M, such as shown in Fig. 11 or blanked at the end of the stock 38 by the dotted line showing it, as appearing in Fig. 10.

Pivoted in the upper portion of the plate 42 is a cam check or holding device 15, to an arm 16 of which is coupled a spring H, which normally maintains a frictional gripping engagement with the stock, particularly in checking the stock against backward movement. It will be understood that the check device 15 does not interfere with feed of the stock 46 into and through the machine, the spring Tl being suiiiciently light to allow the stock to frictionally pass over thecheckand move it out of its cam locking position. As

seen in Fig. 2, a suitable guide 18 is provided to.

guide the stock into the machine. In returning the slide 68 to its raised position, the pawl TI slides freely over the stock, which is held by the check 15, the pawl in this operation being moved against the spring-pressed pin 12. The pawl H has a finger-pin H, note Fig. 5, facilitating manual movement of the pawl in initially threading the stock into the machine. In this operation, the arm U3 is actuated to release the check from gripping engagement with the stock.

The next step in the operation of the machine will be to sever the projected stock along the dotted severing lines M, note Fig. 10. This operation is performed by actuation of a slide 19, carrying a roller 30 which operates in the cam groove 50, this groove having a series of offsets, as indicated in Fig. 2, to contribute to the slide the successive motions later described.

Turning now to Figs. 12 to 16 inclusive, here is shown portions of the slide 19, diagrammatically, one side 8i of the slide operating in conjunction with a knife or cutter portion 82 fixed at the lower part of the head in forming the severing cut characterized by the dotted line showing 14 in Fig. 16, which forms a tongue 83 at one end of the resulting staple and a pair of tongues 8G at the other end thereof. It will thus be seen that no waste in the stock is experienced, except in forming the first and last clips therefrom.

The lower end of the side Bl of the slide, is shaped, as indicated at 85, note Fig. 9, to conform with the cutter tool 82 in performing the cutting or shearing operation. As the slide 19 continues its downward movement, the two side portions 8l8l of the slide operate to bend the prong ends of the staple over an anvil 86, thus forming the staple blank into a U-shape, this inafter set forth. For purposes of description,

thestringers or garments may be regarded as a product or article. In this operation, and keeping in mind that thestringers 81 or garment parts to which they may be attached might vary in thickness, a spring 88 is employed to engage a shoe 88' which extends into the groove 59, note Fig. 8, and provides yielding pressure engagement of the slide 19 or the tools thereof, when engaging the tapes 81, particularly in the final setting operation of the staple.

While the slide 19 and the tool portions operated thereby are moved downwardlyyas above stated, a punch slide 89 is first moved downa partial degree after the blanking operation and during the bending operation, as will appear from a consideration of Figs. 13 and 14. By this downward movement of the punch slide, the anvil 86 is moved out of the path of the bent staple blank and the bent staple is then held inside of the opening at the lower end of the slide '59 between the slides 8|8|'. When the lower end of the slide 19 engages with the article on the clinching anvil 4|, the punch-slider?!) continues in its downward movement ,to force the prongs 83 and 84 through the tapes or fabrics 87 to clinch the same by virtue of the clinching recesses 4| in the anvil 4|. These clinching recesses are most clearly seen in Fig. 16 and they serve to turn the prongs inwardly and upwardly and it is here to benoted that thestaple is preferably clinched over the stringer tapes, including the end scoops or links 81 thereon, thus providing a very secure and well reinforced coupling of the tape ends. However, in some instances, the staple may be constructed to simply unite the beaded edges 81" of the stringer tapes, note in this connection Fig. 17, in which said beaded edges are shown.

The punch slide 89 carries a roller 99, which operates in the cam groove 49. Coupled with the slide 89 is a driving punch bar 9| keyed to a recessed portion of the punch slide, as seen. at 9.2. The punch bar 9| has an outwardly "pro jecting cam portion 93, in connection with which two knob or bead portions 94 and 95 of the anvil lever 96 operate. The lever 96 has at its lower end the anvil B6 movable into and out of the path of the staple blank, as above described.

Considering Fig. 6 of the drawing, itwill appear that in the raised position of the punch slide 89, the anvil flfi is in operative position. However, as the punch moves downwardly, the cam 93 strikes the bead 95 and swings the anvil 85' outwardly to disengage the staple blank and permit the downward feed movement of the blank in the direction of the anvil 4|- It will also be apparent that in the upward movement of the punch slide 89, the cam portion 93 strikesthe head 94 to again return and hold the anvil B6 in its operative position.

Considering Fig. 9 of the drawing, it will be apparent that the punch bar 9| is guided in'its downward movement in groove portions 97 of the slide 19 or the portions 8 |-8 thereof, thus guid ing the punch bar throughout its full stroke movement, as-will appear from a consideration of Fig. 16 of the drawing. It will appear thatthe anvil lever 96 is pivoted in the plate 42, as seen at 98, note in this connection Fig. 7.

From a standpoint of facilitating production of the parts, the side 8| of the slide and the companion side 9| thereof, as diagrammatically seen in Figs. 12 to 16 inclusive, are formed as separate pieces secured to the slide 19 by screws, as at 99, with a spacer |0|l therebetween, note Fig. 7, the latter also forming part ,of the guide for the punch bar 9| in the grooves 91. The parts. 8| and M of the blanking and bending slide may be said to comprise blanking and forming tools, the tool 8| operating in conjunction with the shearing tool 82 in performing the shearing operation. Above the shearing portion 85 of the tool 3| is a large elongated recess Ifll, note, Fig.9, providing free passage of the shearing tool 82 therethrough, as the tool 8| moves downwardly. From the foregoing, it will be apparent that while the cam plate 48 is reciprocated back and forth in th horizontal position, the other operations of the machine are performed by actuation of slides moved transversely to, or perpendicularly with respect to movement of the cam plate. Con sidering the position of the parts, as seen in Fig. 2 of the drawing, this may be said to be the normal stationary or inoperative position of the parts. The first step in the operation will consist in arranging the work in proper position on the anvil iii and to this end, a work engaging element Hi2 can be employedtoflx the position of the work on the anvil while. otherwise'being held by the operator preparatory to depressing the treadle 2E.

Prior to the aforesaid operation, it will be understood that the stock in the form of ribbon or wire 46 has been threaded through the machine and the machine actuated to sever a blank end, so that a finished blank, as at 14, Fig. 10, can be projected into operative position in actuation the machine by the treadle. In depression Of the treadle, the lever 34 will operate to move th I I slide cam 38 from the left to the right asseen in Fig. 2, and during this operationr the following steps will be performed First, the stock 46 w'll b'e fed by the slide 68 to advance the stock beneath the blanking and forming toolsl In other words, to bring the dotted line showing, as at '54 upon the upper surface of and in registration with the shearing tool 82. The next operation comprises the downward movement of the tools 8| and BI, which in their downward movement, first shear the workpiece-to form the staple blank 14, then on continued downward movement of the tools 8| and Bi, thepronged end portions of the blank are bent around the anvil 86, as clearly seen in Fig. 13. In this operation, the punch 9| has started its downward movement and momen tarily, the tools 8| and 8| are held at rest and in the downward movement of the punch 9|, the anvil 86 is moved out of registering position with the staple blank 14. Then, the punch 9| together with the tools 8| and Bi collectively move in the direction of the anvil 4|, the tools 8| and iii operating to engage the stringer tapes 81 and/or the garments to which the same are attached, after which the punch 9| continues its downward movement to pierce the prongs 83 and 84 through the tapes 8! and to curl the same by the curling'recesses 4| of the anvil 4| tothe machine.

7 clinching or securing position of the staple. In the aforesaid operation of movement of the tools 8| and 8| into engagement with the tapes 81, the gripping action is yieldable through the yielding shoe 88', as heretofore stated, so as to compensate for fabrics of varying thicknesses.

On completing the full stroke movement of the treadle 26, the slide cam 38 will be brought to a stop position against the screw 61 and the pawl 52 will have dropped into the recess 51. Pressure on the treadle 2G is then released to allow the same to return to its normal raised position, and in this operation, the spring 28 will return the parts to their normal positions, that is to say, raise the punch and forming tools and the feed slide and move the cam plate 38 to the left.

- At the upper end of the rod 2'! is a yoke-block E03 having elongated apertures 1M engaging the coupling pin 35. The spring 28 normally serves to support the pin at the lower end of the apertures I04 so that in the initial operation of the machine, actuation of the treadle will impart a blow stroke to the lever 34, which will facilitate a freer and more positive action of the operating parts of the machine. Upon reverse movement, a similar blow stroke is imparted to the lever 34 upon release of the treadle 26.

In each continued successive operation of the machine, another portion of the metallic strip or wire will be advanced sufficiently to form the next successive staple blank 14 and the above operation repeated to sever the blank, shaping the same, and then securing the staple to the work, such for example, as the separable fastener stringers disclosed.

The shearing tool 82 includes a stock table supporting portion I05, secured to the lower portion of the plate 42 by a screw I01 and also preferably pinned, as seen at Hi8 and I09. A screw I06 is grooved, as seen at H!) and is adjustable in the tool 82 to provide a controlled guide for the stock in its passage over the table N for proper alinement over the shearing tool 82 and beneath the tools 8| and 8| and punch 9|.

v providing the vertical column, the article pp ng anvil 4| may be brought to a con- Veflient ht for an operator standing at the stapling operations to be performed, the mechanism of the machine may be arranged upon a bench or table and operations of the machine HOWEVER in some types and kinds of performed in any suitable manner. By providing the narrow forwardly extending arm supporting the anvil 4| below the wide head, ample room is provided in the recess M for arrangement of garments or other work, to enable the operator to place the work in restricted or difficult corners, such for example, in attaching bot tom stop staples to fasteners as applied to trousers or, in other words, at the crotch of the trouser.

In the aforesaid operation of the machine, should an operator fail to complete a stroke motion of the treadle 26, for any reason whatsoever, and for sake of example, should the operator stop when the treadle had been depressed approximately one-half the full stroke thereof, then and in that event, the pawl 52, in the po-- sition shown in Fig. 2A of the drawing would 8 started before the parts are returned to their normal or rest position.

Another safety factor prevails in the machine operation, in the sense that should for any reason the cam plate 38 fail to complete its return movement to inoperative position, as shown in Fig. 1, in other words, in the event that the pawl 52 fails to drop into the recess 56, then the rack 38 would be locked against movement in the direction of the arrow 58, Fig. 2A, or in other words, the machine is blocked from completing a normal operation. Thus the machine becomes foolproof insofar as completing a full stroke cycle of operation of the machine.

The machine is also automatic in operation, in the sense of avoiding the attachment of an incomplete staple to a separable fastener, or other work. Considering the feed of the stock 46, it will appear that when an end of the stock has passed beyond the gripper 7|, then the workpiece Will not be advanced beneath the forming tools and a short length of the workpiece with the prong end 83 will remain in the machine and in alinement with the shearing tool 82, and the other tools will simply perform their normal movement without advancing a staple. This will immediatel be detected by the operator and a new spool will be replaced for the consumed spool. In this operation, the short remaining end of the first spool of stock will be pulled from the machine and the new stock threaded therethrough, as previously described.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A stapling machine of the class described comprising a frame having at its upper end a forwardly directed head, a forwardly directed arm at the lower end of the frame and spaced with respect to said head, a curling tool supported on and projecting above said arm, the rear portion of the frame being open, a double-arm lever pivotally mounted upon a horizontal axis in said frame and operating in the open portion of the frame, said head having at its forward surface a horizontal channel, a cam plate slidably mounted for back and forth reciprocating movement in said channel, means coupling one arm of the lever with said cam plate for imparting reciprocating movement thereto, means coupled with the other arm of the lever for actuatin said lever, 21. plate on the front surface of said head forming a closure for said channel and retaining the cam plate against displacement from the head, a plurality of slides mounted in said plate for movementtransversely with respect to the path of movement of the cam plate, each slide having means operatively engaging an independent cam groove in the cam plate for imparting movement to the slides, one slide including means for feeding a strip of stock into the machine a predetermined distance, another slide having means for shearing a staple blank from the stock and bending said blank around an anvil, said last named means operatively engagin a support through which the staple is adapted to pass, and another slide including a punch bar for advancing the bent staple in the direction of and piercing the same through the support for clinching by said curling tool.

2. A stapling machine of the class described comprising a frame having at its upper end a forwardly directed head, a forwardly directed arm at the lower end of the frame and spaced with respect to said head, a curling and setting tool supported on and projecting above said arm, the rear portion of the frame being open, a doubleaum lever pivotally mounted upon a horizontal axis in said frame and operating in the open portion of the frame, said head having at its forward surface a horizontal channel, a cam plate slidably mounted for back and forthreciprOcating movement in said channel, means coupling one arm of .the lever with said cam plate for imparting reciprocating movement thereto, means coupled with the other arm of the lever for actuating said lever, a plate on the front surface of said head forming a closure for said channel and retaining the cam plate against displacement from the head, a plurality of slides mounted in said plate for movement transversely with respect to the path of movement of the cam plate, each slide having means operatively engaging an independent cam groove in the cam plate for-imparting movement to the slides, one slide including means for feeding a strip of stock into the machine a predetermined distance, another slide having means for shearing a staple blank from the stock and bending said blank around an anvil, said last named means operatively engaging a support through which the staple is adapted to pass, another slide including a punch bar for advancing the bent staple in the direction of and piercing the same through the support for clinching by said curling tool, said cam plate having an elongated ratchet portion of a length slightly less than the stroke length of said cam plate, a spring actuated pawl cooperating with said ratchet portion in controlling complete feed motion of the cam plate in both'directions in the machine, the cam plate having recesses at terminal ends of the ratchet portion freeing the pawl from said ratchet portion, the means for actuating said lever comprising a foot-treadle having a link coupling with the arm of said lever, tensional means coupled with the treadle for actuating the cam plate in one direction and in supporting the treadle in raised position, means providing a free coupling between said link and the arm of said lever, and means yieldably backing the shearing and bendin means when in product engaging position.

3. In stapling machines of the character described employing a fixed staple curling and setting anvil, means comprising three slides to feed strip of stock into blanking position above said anvil, to shear a staple blank from the stock and bend the same into U-shaped formation and to feed the U-shaped staple in the direction of said anvil passing the same through a product to be stapled and curlin and setting the staple on said product, all of said slides bein moved vertically with respect to said anvil, means comprising a horizontally reciprocating cam plate operatively engaging all of said slides for imparting movement thereto, means for actuating said cam plate in each back and forth cycle of operation thereof, said last named means comprising a lever swingably mounted on a horizontal axis, one end cam plate, means coupled with the other end of the lever for actuating the same, adjustable means controlling one directional feed movement of said lever and cam plate, said cam plate hav ing longitudinally of one surface thereof a ratchet portion, a sprin tensioned pawl mounted on a 10; operatively engaging the workpiece preventing back feed of the stock through the machine.

4. In stapling machines of the character described employing a fixed staple curling and setting anvil, means comprising three slides to feedi a strip of stock into blanking position above said anvil, to shear a staple blank from the stock ,and' bend the same into U-shaped formation and to feed the U-shapedstaple in the direction of said. anvil passing the same through a product to'be: stapled and curling and setting the staple onsaid product, all of Said slides being moved vertically with respect to said anvil, means comprising a horizontally reciprocating cam plate operatively engaging all of said-slides for imparting move-' ment thereto, means for actuating said cam plate in each back and forth cycle of operation thereof;

and two of said slides having tool portions keyed stapled and curling and setting the staple on saidproduct, all of said slides being movedvertically with respect to said anvil, means compris inga horizontally reciprocating cam plate operat vely engaging all of said slides for imparting movement thereto, means for actuating said cam plate in each back and forth cycle of operation thereof, one of said slides operating staple shearing and bending tools, a fixed shearing tool cooperating with the last named tools in shearing the blank from a stock, and means comprising an adjustably grooved screw for alining the stock with said shearing tools at a point adjacent said tools.

6. In a machine employing a plurality of tools movable toward and from an article supporting member, a cam plate having a sliding mounting horizontally and above said member and transverse with respect to movement of said tools toward and from said member, means on said tools and cam plate controlling movement of the tools toward and from said member in a complete cycle of reciprocating movement of said cam plate, means for imparting reciprocating movement to said cam plate, means actuated by the cam plate for feeding a strip of stock in position between said tools and members, and adjustable means for alining the stock end with respect to said tools.

'7. A stapling machine of the character described, said machine comprising a horizontally channeled head, a cam plate slidable in and guided by the channel of said head, the outer surface of the cam plate having a series of longitudinally arranged cam grooves, a cover plate on said head retaining the cam plate in the channel of said head, a plurality of slides mounted for vertical movement in said cover plate, inner surfaces of the heads having rollers operatively engaging the cam grooves of the cam plate in controlling movement of the; slides vertically in said cover plate, one slide having means operatively engaging a strip of stock to intermittently feed predetermined lengths into the machine, another slide actuating shearing and staple bending tools, and a. third slide actuating a staple setting punch. v

8. A stapling machine of the character described, said machine comprising a horizontally channeled head, a cam'plate slidable in and guided by the channel of said head, the outer surface of the cam plate having a series of longitudinally arranged cam grooves, a cover plate on said head retaining the cam plate in the channel of said head, a plurality of slides mounted for vertical movement in said cover plate, inner surfaces of the heads having rollers operatively engaging the cam grooves of the cam plate in controlling movement of the slides vertically in said cover plate, one slide having means operatively engaging a strip of stock to intermittently feed predetermined lengths into the machine, another slide actuating shearing and staple bending tools, a third slide actuating a staple setting punch, and means exposed in one of the cam grooves controlling yielding movement of said bending tools in engagement with an article to which a staple is secured.

9. A stapling machine of the character described, said machine comprising a horizontally channelled head, a cam plate slidable in and guided by the channel of said head, the outer sur face of the cam plate having a series of longitudinally arranged cam grooves, a cover plate on said head retaining the cam plate in the channel of said head, a plurality of slides mounted for vertical movement in said cover plate, inner surfaces of the heads having rollers operatively engaging the cam grooves of the cam plate in controlling movement of the slides vertically in said cover plate, one slide having means operatively engaging a strip of stock to intermittently feed predetermined lengths into the machine, another slide actuating shearing and staple bending tools, a third slide actuating a staple setting punch, means exposed in one of the cam grooves controlling yielding movement of said bending tools in engagement with an article to which a staple is secured, a fixed shearing tool cooperating with said shearing and bending tools in shearing a workpiece, and adjustable means adjacent said last named tool for alining the advancing end of the stock therewith.

LOUIS H. MORIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,048,522 Gibson Dec. 31, 1912 2,087,242 Bunnell July 20, 1937 2,314,184 Zeruneith Mar. 16, 1943 FOREIGN PATENTS Number Country Date 229,225 Great Britain Feb. 19, 1925 409,072 Germany Jan. 31, 1925

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