US242807A - Machine for forming - Google Patents

Description

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. Y J. R.'ALLGIRE.- Machine for Forming, Inserting and Glinohing Stiapes..

No. V242,807. I Patented .lune 14, 1881.

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JL R. ALLGI'RE. Y Y

Mac-hindfor Forming, Insertngand Glnohing Staples. N0. 242,807. .Patented lune 14, 188|.

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y UNITED STATES PATENT- QFFICE.

JAMEs n. ALLGIRE, OF INDIANAPOLIS, INDIANA, AssIeNOn To @Hannes e. OOWAN, On CANAL WINOHESTEP., OI-IIO.

MACHINE FOR FORMING, INSERTI NG,`AND CLINCHING STAPLES.

l SPECIFICATION forming part of Letters Patent No. 242,807, dated .I une 14, 1881.

Application tied June 2a, Isso. (Model.)

To all whom it may concern:

Beitknown that I, JAMES It. ALLGIRE, acitizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Ma chine for Feeding, Cutting, and Bending Wire into Staples, also for inserting the staples through material and clinching the same, of which the following is a specification.

My invention relates toimprovements in sta-` ple making, driving, and clinching machines, in which the wire is fed to the gage, cut and bent Into a staple, and the staple inserted through two or more thicknesses of material` and clinched; and the objects of my improvements are, first, to provide a means of feeding wire to the gage; second, to provide means for holding the wire in the gage while being cnt and bent; third, to provide a means for insertinjg the staple, when formed, through the ma objects by the mechanism illustrated in the ac.4

companying drawings, of which there are two sheets, in whioh Figure lis a top view of the entire machine. Fig. 2 is a side elevation of the same. Fig. 3 is a front elevation of the same. Fig. et is a detached and enlarged detail view of the feedratchet and part of its operating mechanism.

, Fig. 5 is a side View of the staple formed by the apparatus. Fig. 6 is a front view of the stationary head with the cap removed. Fig. 7 is a vertical cross-section of the head. Fig. 8 is a plan view of the cap infront ofthe head. Fig 9 is a perspective ot' the front spring and device for holding the wire in the gage during the act of bending the wire into a staple. Fig. 10 is an end view of the wire-guide, and Fig. 1l` is a perspective view of the `machine with the wire-spool removed, Y

Similar letters refer to similar parts throughout the several views.

The main frame of the device consists of the horizontal arm A,which is wide vertically and thin in cross-section, with a vertical slot, A, extending through thesame. This arm is also provided witlrbroad and thin pivotal bearings, A2 above, and A3 below, near the front end, for the purpose of hin ging or pivoting thereto oertain levers, which will be hereinafter described, and the eXtreme front end of the arm is provided with the rear part, Pf, of the stationary head, whichwill be hereinafter described. The rearend ot' the arm Ais secured to the stand, ard B, and the standard made fast to any desired post or stand, so that the arm A projects horizontally 'forward toward the operator.

On the Lipper edge of the arm A is a slide,

B', having side plates, b b', which projectdownward a short distance on each side Iof the arm- A, thus forming a guide for the slide. To one side of this slide B' is attached an arm, D,

which projects downward to the bottom otl the arm A, whose use will be described hereinafter. 4 The front upper edges ofthe side pieces,-

b b', are beveled, as shown at a., Figs. 1 and 2, and between said beveled parts is secured a `vertical plate, C, having a cam, C', on its upper edge, and a beveled cam, G2, at its base. This vertical plate operates in the slotA4 of the arm A and moves forward and backward with the slide B. The slide B is provided with Wristpins c c', to which power is applied in any Ordinary manner, whereby areciprocat- "E E is beveled, as shown at i, Fig. 2, for operating on the beveled part a of the slide B. The other end of the pivoted lever E7 is provided with a head, E6, to the front face of which is attached the cross-plate E? of the movable head. This plate E4 is notched out at its top to receive the hammer end G' of the lever-hammer G, and its front face is provided IOO with a vertical groove, in which is inserted a vertical slide, 7L, Figs. 2 and 3. This plate or head E4 is also provided with a vertical recess, g', midway of its height, to receive the coil pushspring g and hold said spriii gin position. The slide h is also provided with a corresponding hole to receive the spring. The plate h is free to be forced down by the hammer G', and when the hammer is raised the spring g causes the plate h to follow the hammer-head up. Thus the hammer-head G' is always kept in contact with the upper end ot1 the slide or stapleclinching plate h. The hammer G' forms the front end of the lever G, and said lever is provided with a broad, thin pivotal bearing midway of its length, which is inserted between the pivotal bearing E2 E3 of the lever E2 and pivoted by the stud or screw f'. The lower side of the rear end of this lever Gr is beveled or curved, as at G2, to be operated by the cam C' ot' the reciprocating plate C, as will be hereinafter described.

The front end of the arm Ais provided with the cross-plate P', (shown more fully in Figs.2, 3, 6, and 7.) This plate is also provided with a vertical groove extending from the ltop to the bottom of its front side, in which operates the vertical slide or staple-driver P2. The upper part of the plate P' is provided with vertical slots p '19', one on each side, in which the front ends ot' the two levers, F F', operate. These levers F F' are pivoted to each side ot' the arm A by a pivot-stud, f, and the rear upper edges of each lever are beveled, as at e, to be operated by the cam t" on the side plates, b

, b', of the reciprocating slide B', as will be hereinafter described. The staple-driver P2 is a iiat plate of steel, having its upper end square and a hole in its lower end to receive the end M3 of 5o pp', corresponding to those in the part P'. The

central bar between these slots is provided with the cross-slots t t', which receive the L- shaped ends ii' of the spring c. This springe is made fast to the front side of the plate P, as shown in Figs. 3 and 7, with its bent ends c' in the slots t t' of the plate. also provided with a stud, or pin, i12, the end of which is rounded to fit into a correspondingcountersink formed in the face ofthe stapledriver P2, as shown in Fig. 7, the operation of which will be hereinafter described. The faces ofthe plates P and P' are provided with a small cross-groove on one side, as shown at y, Fig. 6, to permit the wire to pass through over the cutting and bending arms F F'.

On one side ofthe arm A is secured another arm or bracket, H, which projects sidewise, on

This spring c is which, near the head P P', is secured the wireguide I I' l2, shown more fullyI in Figs. 3 and 10. This wire-giiide is provided with a hole, a, corresponding to the hole y, for guidingthe wire to the gagiiig, cutting, and bending devices.

On the bracket H is mounted lthe shaft K5, the upper end of which is held in place by the bracket-bearing K. The shaft K5 is provided near its lower end, below the bracket El, with a ratchet-wheel, K', the teeth of which are ot' the proper length, so that by the pawl K2, arm D2, coniiectiiig-rod D', and a single movement of the reciprocating slide B', the wire will be fed the proper distance to forni a staple of the required size. The arm D2 is made fast to the shaft K5 or ratchet K', and projects some distance toward the main arin A ot" the inachine. The pawl K2 is pivoted on top ot' the arm D2, and held in contact with the ratchet by the spring K2. The connecting-rod D' is pivoted at a to the arm D2, and its other end is provided with a slot, e', in which operates the stud c attached to the arm D. The backward motion of the rod D' is arrested by the stop-pin c5, which is inserted in or forms part ofthe arm A'ot the machine.

Near the upper end of the shaft K5, but below the bracket K, is secured the feedwheel J, having a groove,j, Fig. 2, turned in its peri phery to receive and guide the wire from the spool L. Iii front of this feed-roller J is another sin all roller, J', pivoted to the adjusta ble arm J2, which is pivoted to the bracket K. This roller acts as a pressure-roller to hold the wire tightly against the feed-roller J. Below the arm J2, on the bracket H, is also pivoted another arm, J 3. lts front end is bent upward so as to extend to the top of' the arm J2. This bent portion is provided with an U-shaped steel spring, one leg of which isiiiade fast to the bent arm and the other leg resting against the edge of the lever J2, thus forming a tension-spring, g, to force the roller J' against the wire d in the groove j ofthe wheel J.

On the bracket I-I is also secured a cam-1ev ver, J5, which, when in the position shown in Fig. 1, holds its arm J 3, with its spring J4, in close contact with the arm J 2, and when turned or moved forward toward the spring J 4 releases thepressure of the spring on the arm J2, and consequently the pressure on the wire d.

L is a spool mounted on a suitable standard for holding the wire that is to be fed, cut, and bent into staples. v

Z is a spring for holding the front end ot` the lever E7 up.

m fm are springs for holding the rear ends of the levers F F up, and N is a spring for holding the rear end of the lever M up, all arranged as shown in the drawings. i y

The operation of my improved dev-ice is as follows, to wit: The spool L is first filled with wire, and the wire inserted in the groove j of' the wheel J, between said wheel and the tension-wheelJ'. Thewire is then inserted in thev hole a of the guide I I' l2 and conducted into IOO IIC

the hole or groove yof the head P P'. The lever-J5 is then thrown back into the position shown in Fig. 1, causing the cam at its end to press the arm J3 sidewise, and forcing the spring J4 in contact with the `arm J2, thus forcing the roller J against the wire d. The slide B' is then moved forward and back by hand until one staple has been formed, the operator having a number of blank trays or other articles that are to be securedtogether by the staples ready for fastening. The operator then places one of the articlesto be .secured by the staple, as shown at P5, Fig. 2, 011 the top of the head P P', and the machine is set in motion. As the slide B' moves forward the beveled ,parts a a ot' the sides b b' raise the rear end, E', of the lever El, causing the head E4 lo come down on top of the article to be fastened, thus holding the material P5, as it were, in a vise. At the same time that'the leverE7 is being thus operated the stud c of the arm D slides along in the slot c' ot' the connecting rod D to the front end of the slot, and as the top surface of the slide B' slides forward under the end E' ofthe lever E2 the stud c moves the rod D' forward, thus causing the arm D2 ofthe raichet-wheelK' also to move forward and the pawl K2 to slip past the teeth of the ratchet-wheel.

When the cam t' of the side pieces, b b', of the slide B' comes in contact with the curved ends l ofthe cutting and bending levers F F', said levers are forced down at their rear ends until the sides b b' can slide over their top surfaces. As these levers F F' are depressed at their rear ends, the front ends, which operate in the slots p p' ot' the head-plates P P', move upward, the outer edge of the lever F' cutting oft' the wire d at the side of the slotp', Fig. 6, and the inner edges ofthe ends of both levers F and F' bend the ends of the wire thus cut. The central portion of the wire, after being cut, and during the act ofbending the ends, is held against the under side of the projecting ends 'u' of the spring c until the wire is bent into a staple, as shown in Fig. 5, the elevated ends of the levers F F' forming side walls to guide the staple in its upward motion. Atthis stage of the operation the slide B' advances until the cam C2 at the lower end of the vertical plate C, comes in contact with the end M2 of the staple-driving lever M, causing said lever M to be slightly7 depressed and raising the front end, which carries the stapledriving slide P2 up sufficiently far as to force the pin b2, Fig. 7, out of the countersinkrin the driver P2. This slight motion forces the bent ends fv' ol' spring c out from above the bent staple, thus leaving said staple free to be driven upward through the articles to be secured. The further advance movement of the slide B'causes the cam C2, at the bottom of the vertical plate G, to come in contact with the cam M' of the lever M, thus forcing the lever M rapidlydown at its back end, causing the front end to rise equally as rapidly, carryin g with it the staple-driver P2, which forces the staple up through the material P5 into the lower end of the groove formed in :the head E4, under the clinching device or plate h. At the same time the advance movement of the slide B' causes the upper cam, C', ot' the vertical plate (l to strike the curved end G2 of the hammer-lever, forcing it up and the hammer G down, carrying with it the elinching device `or slide-plate h, the lower end of which is curved, as in Fig. 3, thus bending and clinching the .ends of the staple above the work. On the re.-

turn or backward stroke of the slide B' the hammer-lever G is first released and the spring g causes its front end, G', to rise up, and at the same time the spring g causes the clinching device or slide-plate h to follow the hammer up. The lever M is then released and its rear end raised up by the spring N, causing the front end to fall until the staple-driver is at its lowest point. The pin c2 ot the spring c then slips into the countersink formed in the driver P2, causing the bent end c ot the spring to move back in the slots t t' over the wire d, the slide still moving back until the levers F F' are released, when the springs m force the rear ends up and permit the front ends to fall below the wire-hole g/ofthe head. At the same time the stud e strikes the rear end of the slot e of the rod D', carrying the rod back and moving the ratchet-wheel K, causing the feed-rollers J J' to feed another length of wire across the head P P', above the ends of the levers F F', when the rear end ot' the rod D strikes the stop C3 and arrests the backward motion of the rod. During this `back stroke, just after the stud e engages the rear end ot' the slot c', and before the end of the rod D' strikes the stop, the lever E7 is released from the inclined plane a of the sides b b' of the slide, and as the rear .end of the lever E' falls the front end is raised by the spring Z, and the material P5, which has been secured together by the staple, is released from the viscjaws, after which the operation is repeated.

What I claim as new, and desire to secure by Letters Patent, is Y l. The combination,in a staple forming, bending, and clinching machine, of the main arm A, having a vertical longitudinal slot, A4, and pivotal bearings A2 A3, the slide B', having downward-projecting sides b b', provided with a beveled front, c, and aeam, i', the vertical bar or plate C, having the cam C' at its top and the IOO IZO

cam C2 atits bottom, the wire cutting and bendp,

ing levers F F', having their rear ends rounded or beveled, as at l, the lever E", with beveled end i, the lever Gr, with beveled or rounded end G2, lever M, with its two cams, M' M2, the arm D, with stud e, the connecting-rod D', with slot e', the lever D2, ratchet K, pawl K', feed-wheel J, pressure-wheel J', the head P P', with slide P2, the spring c, with pin c2 and L-shaped end c', the head E4, with slide h, and spring g, all arranged and operated to advance the wire, cut it off, and bend, drive, and clinch the link,hold the work, and release the same after fastening, by a single forward and backward stroke of the slide mechanism, substantially as shown and described.

2. The combination of the slide B' and the side plates, b b', having beveled tops a and under-curved ends i', the vertical plate C, with cam C' at its top and cam C2 at its base, and the downward-projecting arm D, substantially as described, for the purposes specified.

3. In combination with the vertical standard C, having a cam C' at its top, the hammer-lever G, pivoted tothe lever E7, as described, for the purpose specified.

4. In combination with the side guides, b b', having the inclined parts a, and vertical plate C, having thecam C', the slide B', the lever ET, and hammer-lever G, substantially as shown and described.

5. The lever E7, having the end EG, provided with the head E4 and plate E5, and also having the clinching device h, with spring g,com bined with the hammer-lever G G' G2, substantially as shown and described.

6. The clinching-plate h, with springg, combined with the head E4, and hammer G' of the lever G, as described, for the purpose specified.

7. In combination with theside guides, b b', ofthe slide B', having the under curved or beveled parts fi', the cutting and bending levers F F', pivoted to the arm A, as shown and described.

8. In combination with the vertical plate O of the slide B', having the cam or inclined part G2 at its lower end, the staple-drivinglever M, with cams M' M2, as and for the purpose specified.

9. The lever M, having two cams, M' M2, at one end, operated by the cam C2 at the end of the plate C of the slide B', and a small lug, M3, at its front end,combined with the stapledriver P2 and spring o, as and for the purpose specified.

l0. The spring c, having a forked L-shaped end, o', and a pin, v2, combined with thestaple-driver P2, said staple-driver having a countersink for receiving and operating the pin o2 of the spring, as specified.

l1. The lever M, with cam M2, operated by the cam C2 of the plate C ofthe slide B', combined with the staple-driver P2, havinga countersink in it, and the spring o, with pin if' to fit in the countersinlr. of the staple-driver, whereby the pin lu2 is pushed out of the countersink as the staple-driver moves up, and is inserted in the countersink as the driver moves down, for the purpose specified.

l2. The lever M, with cam M', operated by the cam C2 of the plate C of the slide B', combined with the staple-driver P2, whereby the staple is driven upward through the material to be secured, as shown and described.

13. In combination, the levers F F', the lever M, the staple-driver PZ, and the spring c, with its L-shaped forked end v' and pin o2 and head P P', with slots p p', whereby the wire for the staple is cut, bent, released by the forward movement of the spring v, and driven through the'work by the driver, substantially as shown and described.

14. The pressure-roller J on the adjustable lever J2, combined with the spring J4 on the L-shaped arm J2, and the cam-lever J5, as and for the purpose specified. v

In testimony whereofI have signed my name to this specification in the presence ot` two subscribing witnesses.

JAMES R. ALLGIRE.

Witnesses:

E. O. FRINK, GEORGE H. BENNETT.

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