US496314A

US496314A - Wire-stitching machine

Info

Publication number: US496314A
Authority: US
Publication date: 1893-04-25
Anticipated expiration: 1910-04-25

Description

(No Model.) a sheets-sheen 1.

E. R. JOHNSDN. l `WIRE STITGHING MACHINE.

Patented Apr. 25, 189s.

No. 496,314'.v

Ax t

" 1 VEN-raam 3 sheets-sneer 2.

(No Model.)

E. R. JOHNSON. WIRE STITGHING MACHINE.

Patented. Apr. 25

Ii n A 0. MJM.

mmm

(No Model.) 3 SheetsSheet 3. E. R. JOHNSON. WIRE STIIGHING MACHINE.

Patented'Apr. 25, 1893.

INVEN'T'III;

mi Nonms PETERS ou. vncrraurno.. wAsHmm'on. D. c.

UNITED STATES PATENT OFFICE.

ELDRIDGE R. JOHNSON, OF CAMDEN, NEW? JERSEY, ASSIGNOR TO THE NEW JERSEY WIRE STITCHING MACHINE COMPANY, OF NEW JERSEY.

WIRE-STITCHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 496,314, dated April 25, 1893. d

Serial No. 443,852. (No model.)

.To a/ZZ whom it may' concern.-

Be it known that I, ELDRIDGE R. JOHNSON, a citizen of the United States, residing at Camden, in the county of Camden and State of New Jersey, have invented certain new and useful Improvements in Wire-Stapling Machines,of which the following is a specification.

My invention has relation to wire-stapling 1o machines having for its object to improve and simplify the construction and increase the efficiency thereof, and consists in the provision of a novel form for each of the wire feeding, wire-cutting, staple-forming and i, I5 staple-driving mechanism and the means whereby the same may be in continuous, as distinguished from intermittent, operation; the length of wire fed and the pressure exerted thereon, by the feeding device, varied for the zo reception of wire of different gage; and the length of stitch regulated.

My invention also consists in novel means whereby the position of the table, relatively to the presser-bar of the machine, is governed z 5 by the thickness of the pamphlet, dac., to be stapled, and in the provision of a novel form of clincher and means for its operation.

My invention, further, consists in the details of construction and the combinations 3o of parts as hereinafter fully described and claimed and as illustrated in the accompanying drawings, to the end that the various and necessary operations of the machine, for the production of work ofthe most approved' character, may be accomplishedv through the employment of the fewest possible parts and the least complex motions, conducing to du.- rability, lightness and freedom from noise, together with smoothness and rapidity of run- 4o ning and easiness of operation.

In the drawings: Figure l isa front elevation, partly broken away, of the head of the machine and its appurtenances, and Fig. 2 is a side view of the same. Fig. 3 is a front elevation of the table and its support and Fig. 4 a side view of the latter. Figs. 5 and 6 are a front elevation with the front or plate removed and a vertical transverse section, respectively, of the clincher detached. Fig. 7

5o is a side elevation, on a reduced scale and partly broken away, of the improved machine.

Fig. 8 is a perspective view of the anvil and support, the pushers, the guide and cutting blocks, in operative relation. Fig. 9 is a perspective view of the presser-bar,with thecutter 5 5 and former secured thereto, and the stapledriver in its proper position relatively thereto. Fig. 10 is a front elevation of the anvil and support, the pushers, and the guide and cutting blocks, in the relation shown in Fig. 6o 8, showing` the position of the cutter and former when about to cut olf a length of wire, when the latter has been` shoved by said pushers to the`point illustrated by the dotted lines in said ligure, and Fig. ll is a similar view of so much of said parts as is necessary to illustrate the staple-forming operation. Fig. 12 is a side elevation ot the anvil and support, with the driving-bar, presser-bar, and cutter and former in section, showing the 7o position of the latter after the forming operation and the pushersinthe act of shoving the completed staple oft the anvil into the path of the driver.

In the drawings, A represents the head of the machine, having therein a recess ct for the eccentric B, the latter being secured on the forward end of the main shaft B and sustaining the pin b, said pin affording abearing for the lower end of the pitman C, the upper end 8o of said pitman having its bearing on the pin c secured in the driving-bar D near its upper end.

E is a bell-crank lever pivoted on the pin e, sustained. by the head A, at one side thereof, said lever having a slot e in its shorter end and supporting the pin e2 in its longer end, said pin e2 affording a bearing for one end of the link e3, the latter forming the actuating medium for the lever E, through hav- 9o ing its other end journaled on the eccentricpin b. As will be observed, the driving-bar D has therein, about midway of its length, a longitudinal slot CZ, the same affording a elearance for the pin f, ot' the presser-bar F, said 95 pin passing through said slot and into the slot e in the lever E, the slot last mentioned permitting of freedom of movement therein of the pinf, upon the reciprocation of the presser-bar by said lever.

The lower end of the driving-bar D has therein a short recess d', of a depth equal to loo the thickness of the driver D', having therein a round boss or projection (Z2, said boss being provided for engagement with the opening Z3 in the upper end of the driver and said recess permitting of such upper end resting within the plane of the surface of the bar D, so as to not interfere with the sliding freely of the presser and driving-bars upon each other and within the box A' of the head A, said bars being retained in operative relation with each other, and with their connections, through the medium of the lid or plate a', the latter being secured in position by the screws a2.

The lower end of the presser-bar F is thickened or enlarged, as at f', such enlargement having a vertical groove f2 therein, the same forming a slide-way for the driver D' and the latter being secured against dislodgment therefrom bythe combined cutter and former G, which is secured to the face of the enlargement by the screws g g and extends over said groove, which screws pass thereinto from the rear, and by the pins g' g'. The driver D' being further retained in the groove f2 by the guides f3 f", which latter are secured in recesses at opposite sides of and project, for a short distance over the edges of said groove, forming a tube for reception of the staple and serving to poise or hold such staple in position for driving, the lower end f5 of the presser-bar operating as a presser-foot, while the space between the guides prevents the lodgment of any improperly formed staples at the entrance to the tube and the consequent clogging up thereof.

The cutter and former Gis, as shown, of angular shape, having two depending legs g2 g3, the leg g2 having its lower end sharpened at its outer edge, as at g, while the end of the leg g2 is rounded. This cutting edge, in conjunction with the block lvl, with which it is in close relation, operates to exert a shearing action on the wire at the point where it passes from that portion of the slot Zt which is in said block, thus separating it into the proper lengths.

I represents the anvil support, the same being secured to the leg A2 of the head of the machine by means of the screw t', which screw passes through said leg and into the support, the latter having its lower end forwardly extended, foot-like, into a forminganvil I', said anvil being of such width as to permit of its projecting between the legs of the cutter and former to such extent as that its forward edge will barely clear the path of the driver, there being left a space between the sides of the anvil and the adjacent sides of said cutter and former of a width equal to the thickness of the wire employed. Accord- The upper end of the anvil-support sustains a transverse pin 7c, upon the proj ecting ends of which are pivoted the pushers K K', the latter having their lower ends forwardly extended and provided with the offsets 71:4, the same permitting such ends to overlap the ledges of said anvil-support and project slightly over the top of the anvil. These extensions k3 are diminished in thickness, so as to permit of their interposition between the sides of said anvil and the adjacent edges of the cutter and former, and have their front edges so inclined that they will stand vertically, when the pushers are swung forwardly their full extent, permitting of thepushing of the staple squarely off the anvil.

The cross-bar L has secured thereto the pins Z Z', which bear against the rear edges of the pushers, and the rod Z2 passes through a central opening in said cross-bar, said rod having its inner end threaded and in engagement with a correspondingly threaded ,socket in the leg A2, and is provided at its outer end with a thumb-piece Z3, between which and said cross-bar is interposed the spring L', said thumb-piece affording means for screwing, in or out, the rod Z2 and varying the pressure of the encircling spring on the crossbar and, consequently, the pressure of said pins on the pushers.

M is the feed-bar of the machine, which is supported on one end of the shaft m, such shaft being journaled in the boss m on the head A of the machine, and having on one edge the boss m2, the latter affording a bearing for the rock-shaft m3, the forward end of which shaft has secured thereon an inverted semi-circular disk m4, while the rear end thereof has secured thereon the lower end of the curved lever m5, such lever being jointed, hinge-like, to the arm b' of the eccentric-strap B2, through the medium of the pin m6.

n represents one of the feed-jaws, the same being' a circular rod sustained in a box or bearing N near the lowerend of the bar M, having its ends rounded and smooth, atits upper end abutting against the flat part of the disk m and at its lower end being opposed to the stationary jaw n', said jaw being also circular and is secured in the lug n2, at the lower extremity of said bar M, by the screw 'n3 which projects into a groove therein. It will be seen that the shaft m has thereon, at the end opposite to that on which the bar M is secured, a rubbercushion m7, the same being interposed between two washers m2, which prevent access of oil thereto, and being subject to the impact of the nut on, which latter, also, serves to secure the shaft m in the boss m'. Now, owing t'o the fact that the connection between the lever m5 and the feed-bar M is loose, the shaft m2 being loosely journaled in the latter while the lever is secu red rigidly to such shaft, when the arm Z2' is drawn by the eccentric toward. the left of the drawing the shaftm3 will IOO IIO

bar moving, until it meets with a resistance sufficient to prevent its rotation. This resistance is found in the feed-jaw n, the disk m4 on said shaft coming into contact with said jaw and the wire being interposed between it and the lower jaw. When this occurs,which, as before suggested, involves the gripping of the wire by said jaws, the feed-bar M will move toward the left of the drawing, under the draft exerted thereon by the eccentricarm b', and accomplish the feeding of the wire to the staple-forming devices. Obviously, the less easily the feed-bar moves on its bearings, or the more friction therein to overcome, ,the more tightly must the Wire be grasped in order to produce a resistance in the shaft m3 which is greater than that of the shaft fm. Therefore, as the amount of friction in the shaftlast mentioned is varied so will the pressnre of the feed-jaws on the wire vary, thus said jaws are readily adjusted to suit wire of different sizes.

The amount or length of wire to be fed to the staple-forming lmechanism is regulated by simply turning the thumb-screw 0, by means of the wheel O, and then locking it in position by the check-nut o', the latter having an arm o2 for facilitating its operation. As the distance is between the opposing ends of the screw o and the eccentric arm b', so will the eccentric move free without actuating the feed-bar, owing to the loose joint, aforesaid, between said bar and the levermf".

. When, however, the screw o and arm b come together the feed-bar will be actuated, consequently the more the motion of the eccentric, before the movement of said feed-bar, the shorter will be the length of wire fed, while, on the other hand, the less of such motion the greater the length of wire. Obviously, the feed-bar M may be actuated to equal effect by lengthening the pin b snciently to permit of pivoting one end of a pitman thereon, the other end of which lat-ter being jointed to the lever m5, through the pin m6, the same as is the eccentric arm. The pin b, in this event, is a crank-pin; which, through the intermediate connections, operates the feedstaple-forming and driving mechanism; and the eccentric B a crank-disk. The advantage in the employment of the strap B', however, is that of greater compactness.

The reel P, which is supported by the arm p, secured to the head A of the machine by the screw p', is of ordinary form and provided with the usual spring p2, secured to the spindle p3 upon which the reel rotates, which spring retards the movement of such reel and prevents the unnecessary unwinding of the Wire therefrom. wire is as usual subjected to tension, for which purpose any suitable device may be employed, such, for example, as that lettered R, the same being in the form of a guide and having at its ends the loops or eyes 'r 7" for the passage of said wire, the eye fr being of'v about the width of the coil of Wire, while the eye r is considerably narrower and operates After leaving the reel the t0 center the wire preparatory to its going through the straightening devices. Said guide or tension, also, being pivotally supported on the outer end of the arm R', which armis secured on the rear end of the spindle p3 and has interposed between and secured to it and the arm lo, the spring r2.

The wire-straighteners are shown at s s in the shape of small rollers, one of which, s, is journaled on the pin s2 in the end of the fixed arm s3, the latter being secured to the arm S projecting laterally from the head A, and the other roller, s', having its bearing on the pin s4 in one end of the pivoted curved plate S', the latterbein g provided with a circularbase 85 and is adj ustably secured to the arm S by the screw s6. The wire, after leaving the tension device, passes around the plate S; under the draft of the feed-bar; and between the rollers, which latter operate to bend such wire in opposite directions and straighten it. The plate S is swung on the screw s6 so as to bring the axis of the roller s nearer to or farther from the axis of the roller s, according as the stiffness of said wire requires. After the wire is straightened and grasped by the feed jaws n n it is passed into the slot h formed by the block H and the guide H', said block and guide each having half of said slot therein, while the guide H is of such length and is so disposed as to have its inner end in close relation with the rear of the anvil, back of the path of the cutter and former, thus insuring the invariable introduction of the wire to said anvil and avoidingl the bending of the same theretofore, by striking the side of the anvil, or otherwise. The detent or dog S7, pivoted on the pin ssin the extension S9 of the base 55 and maintained, by the spring S10, in contact with the wire is of such shape at its free end asv to permit of the wire passing forwardly between it and the plate S and operating to wedge or j amb said wire, when a staple length has been cut and the draft of the feed-bar Vis released, preventing the tension device from drawing the end of the wire from said sloth. In this connection it maybe stated that for the formation of a deeper staple, that is, one having longer ends, the block H is simply moved outwardly on the guide H which it incloses, through loosening the screw h in the slot h2, and substituting a cutter and former whose cutting edge is farther from the center than the one shown, which latter is detachably secured by the screws g g, and again fixing said block in such position as to be in operative relation with the cutter.

The table T is supported by the lower arm 3 of the frame2; said frame being secured to the base 4t of the machine by the bolts 5; through the medium of the box 6 which incloses the standard 7, said box having its lid 8 secured thereto by the screws 9 and lO,which lid, by reason of their being a little clearance between its upper rear side and the upper edges of the sides of said box, as shown at 11,

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operates as a clamp-plate to retain said standard in any adjusted position, when pressure is exerted thereon by the screw 12. Said screw 12 having thereon the handle 13, to facilitate its operation, and passes through the center of the cross-bar 14, said bar being secured to a boss on each side of the box 6 by the screws 15 and the screw 12 passing through a central threaded opening in the cross-bar and bearing against the lid 8. The standard 7, at its upper end, is provided with a head 16 to which the pedestal 17 of the table is fastened, by the bolts 1S.

As will be observed, the standard 7 has secured thereto by the screws 19, at a point below the lower edge of the box, the plate 20, the same having secured thereto the handle 21, the shank 22 of which handle serving as a gage for regulating the height of t-he table. Thus, when a book, for example, of a certain thickness is to be stapled and the table is not at itsl proper height relatively to the presserbarof the machine, such book is inserted between the shank 22, of handle 21, and the lower edge of the box G. Then the screw 12 is loosened and the standard 7 and, consequently, the table, raised by means of the handle 21 until the shank 22 of the latter bears against the book aforesaid. Then the screw 12 is again tightened. The effect is to bring the table into such relation with the presser-bar of the machine as that the distance between its lowest point of travel and said bar will be equal to the thickness of the book to be stapled, avoiding any injury to either the book or the machine. The distance between the shank of the handle 21 and the lower edge of the box 6 is at all times equal to the distance between the table and the lowest point reached by the presser bar, or ,the foot thereof.

The clinching mechanism consists of the casing T projecting through an opening in the center of the table T and provided with a capplate t, secured thereto by the screws t', said casin g having therein a broad transverse rib 152 upon which and between it and said plate moves the slide t3, the lower end of said slide having a lug t4 provided with an opening t5, through which opening passes the screw 23 which connects the slide to the clincher operating rod 24, said rod sliding within a longitudinal groove 25 in the face of the standard 7 and being connected at its lower end to the arm u of the bell-crank lever U. The upper end of the slide t3 is provided with pins i, upon which are pivoted the lower ends of the links t7, while the upper ends of said links are pivoted, in turn, on the pins 8 of the clinchers t9, the latter being pivoted on the pins 1510 in the upper end of the casing. The

upper ends of the links t7 are, as shown, inclined inwardly, so as to avoid the crossing of centers by said ends and the consequent jamming of the clinchers against the sides of the casing, which latter is secured to the standard by the screw 2G.

The bell-crank lever U is pivoted on the pin u sustained in lugs formed on the lower end of the standard 7, as at 27, the other end of said lever being connected to the pitman u2, which latter is pivoted on the pin n3 in the rotary disk U, said disk, also, having a pin n4 upon which is pivoted one end of the connecting rod U2, the upper end of such rod being pivotally connected to the lever V, which lever is fulcrumed on the pin o in the arm 1 of the machine and has upon its free end a friction-rollero, said roller being maintained, by the pressure exerted on the lever U by the spring w, in contact with the cam o2 on the main-shaft B', thus the desired reciprocation of the slide t3 and the consequent operation of the elinchers 10 is secured.

In order to have perfect control of the machine it is necessary to provide means for applying power to and releasing the same from the shaft B therefore the collar 29 is secured rigidly on said shaft by the bolt 30, the hub of the pulley 28, which latter is loosely journaled on said shaft, having sockets 31 therein for reception of the rounded end 32 of the bolt 33, which bolt is hollow for reception of the spring 34 and is retained within a recess in the collar by thedisk or washer 35 secured to the end of said collar, which recess is round at the part through which the end 32 of the bolt projects and is square at the point 3() where the correspondingly shaped rear portion 37 of said bolt lies, said collar, also, serving to keep the spring 34 in the position shown, said square portion 37 of the bolt 33 being provided with a projection 3S.

Secured to the shoulder 39, on the frame of the machine, by screws, as at 40, is a vertical box or casing having therein a latch 41, which latch and box have each a pin 42 43 to which are secured the ends of aspring 44, the lower end of said latch being connected to the rod 45 and the upper end of the same having thereon an inclined shoulder 4G, which is in radial alignment with the path of the projection 37, and a limiting stop 47. The rod 45 is connected at its lower end to the treadle 48 and the treadle is pivoted on the pin 49, in lugs on the foot of the base4 of the machine, as at 50.

The operation of this machine is as follows: The wire @cis first drawn from the reel Pand the end thereof passed through the eyes fr r of the tension-device; around the plate S and between the straightening rolls s 3'; into the feed-jaws n n; through that portion of the slot h which is in the guide H; and into the position shown in full lines in Fig. 8 of the drawings. Starting with the parts of themachine in the relation shown in Figs. 1 and 2, which is that assumed by such parts after the driving of a staple and immediately preceding the feeding operation, the staple-former and driver is on the rise, said former being about to clear the anvil and the lower end of the driving-bar, to which latter said driver is attached, about to clear the cam-shoulders IIO la k2 of the pushers. Power is applied to the shaft B', through pulley 28, causing the rotation of the eccentric B and the farther rise of the driving-bar, through the medium of. the pitman C, and a like direction of movement to be imparted to the presserbar, to which latter the former is secured, through the swinging outwardly of the upper end of theV lever E under the impulse exerted thereon by the link e3. Said forming-bar then rests, momentarily while the center of the eccentric pin b is crossing the horizontal axis of the lever-pin e2, the former G having, by this time, cleared the anvil and the lower end of the driving-bar cleared said cam-shoulders, the driver, at the same time, being above the plane of said anvil. The wire, meanwhile, has been fed onto the rear part of the latter by the feedmechanism, whereupon the pushers K K are free to swing forwardly, under the impulse of the spring L, pushing said wire forwardly on the anvil until their shoulders abut against the former G, such wire being thus brought into the position shown in dotted lines in Fig. 8, where it is in the path of said former. Now the forming-bar descends, causing the cutting off of the proper length of wire and the bending of the ends of the same over the anvil,by the former, producing the desired staple, such descent continuing until the upper part of the former clears the shoulders lo k2, when the pushers swing still farther forwardly and sweep the completed staple squarely oft' the anvil into the position shown, Fig. 2, where it is in the path of the driver. By this time the lower end of the driving-bar, whichlatter has been steadily descending, comes into collision with said shoulders, causing the return of the pushers to their initialA positions which motion, being continued, results in the driving of the staple through the article to be stapled, by the driver D', the presser-bar having, in the interim, come into contact with and exerting the proper degree of pressure on the same. Such pressure is continued during the clinching operation, because of,

the resting, for the time being, of said presserbar in this position, by reason of the fact that the upper end of the lever C, which operates said bar through the line e3, has reached the limit of its inward swing, clearance for which is afforded by the curve in the pitman C, and said link simply turning on the pin e2 without actuatingA said lever. As will be readily understood, the clinchers remain inactive-while the operations above described are taking place, the roller 'u' being in contact with the lower partc3 of the cam o2 and, upon the completion thereof, said roller strikes the higher portion of said cam and causes said clinchers, through the intermediate connections, to swing upwardly and bend the ends of the staple close to the article stapled, effecting the desired stapling. At this stage the eccentric has carried the pin b a portion of its up-stroke, carrying with it the drivingbar, whereupon the presser-bar and former rise until the upper part of said former is opposite the cam-shoulders of the pushers and the lower part or cutting edge clears the top of the anvil, the lower end of said driving-bar having, meantime, cleared said shoulders, permitting said pushers to shove the wire, which'has been fed in by the feed-bar, from the slot in the guide H and the back of the anvil, to the front of the latter and into the slot in the cutting-block H, where such wire is in the path of the cutter and former and the parts in position for a repetition of the operations just described, and so on. Upon the cutting off of a length of wire, which occurs when the eccentric has accomplished about half of its up-stroke, the feed-bar M, under the impulse of the eccentric-arm, swings back until the completion of half of the downstroke of said eccentric, when the wire is gripped by the jaws n n', in the manner hereinbefore described, and said bar swings i-nwardly again and feeds another length of wire into the guide H and the rear portion of the anvil, from whence it is pushed forwardly by the pushers.

The employment of spring-pressure for impelling the pushers forwardly, permits of the bringing of a single length of wire, of any thickness, directly under the former andthe same, when formed into astaple, being placed in the path of the drivel', before the admission of another length ot' wire to the front part of the anvil. Said pushers accommodate themselves to various thicknesses of wire, insuring the invariable placing of but one length of the same, be it ever so tine, under the cutter and former and avoiding the accidental ydriving of two or more staples at one point, obviating the necessity for the removal and substitution of parts, or other means, for adapting the machine for reception of wire of different thickness.

What I claim as my invention is as'follows: l. I-n a wire-stapling machine, the combination of a driving-shaft, a reciprocating arm actuated thereby, the feed-bar, a lever hinged to said arm and pivotally connected to said bar, and the feed-jaws, and means' whereby said lever is limited in its pivotal movement by one of said jaws, substantially as and'for the purpose specified.

.2. In a wire-stapling machine, the combination of a driving-shaft, a reciprocating arm actuated thereby, the feed-bar, a lever hinged to said arm vand pivotally connected to said bar, the feed-jaws, and a projection carried by said lever and limiting its pivotal movement by contact with one of said jaws, substantially as specified.

3. In a wire-stapling machine, the combination of a driving-shaft, a reciprocating arm actuated thereby, the feed-bar secured to va rock-shaft, a bearing for the latter, a nut on said shaft, a cushion between said nut and bearing, a lever hinged to said arm and pivotally connected to said bar, the feed-jaws,

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. and a projection carried by said lever and limiting its pivotal movement by contact with one of said jaws, substantially as specified.

et. In a wire-stapling machine, the combination of a driving-shaft, a reciprocating arm actuated thereby, the feed-bar provided with a wire gripping device, a lever hinged to said arm and pivotally connected to said bar and having a limited pivotal movement in both directions, substantially as specified.

5. In a wire-stapling machine, the combination of a driving shaft, a reciprocating Aarm actuated thereby, the feed-bar secured to a rock-shaft, a bearing for the latter, a nut on said shaft, a cushion between said nut and bearing, a lever hinged to said arm and pivotally connected to said bar and havingV a limited pivotal movement in both directions, substantially as and for the purpose specified.

G. In a wire-stapling machine, the combination of a driving shaft, a reciprocating arm actuated thereby, the feed-bar, the feed-jaws, a lever hinged to said arm and pivotally connected to said bar, a stop for limiting the pivotal movement of the lever in one direction, and means whereby said lever is limited in its other direction of movement by one of said jaws, substantially as and lor the purpose specified.

7. In a wirestapling machine, the combina tion of a driving-shaft, a reciprocating arm actuated thereby, the feed-bar, the feed-jaws, a lever hinged to said arm and pivotally connected to said bar,a stop for limiting the pivotal movement of the lever in one direction, and a projection carried by said lever and limiting its movement in the other direction by Contact with one of said jaws, substantially as and for the purpose specified.

8. In a wire-stapling machine, the combination of a driving-shaft a reciprocating arm actuated thereby a swinging feed-bar, a lever hinged to said arm and secured to a rockshaft in said bar, a stop for limiting the pivotal movement of the lever in one direction, the feed-jaws, and a projection on said roekshatt adapted to strike one of said jaws and limit the movement of said lever in the other direction, substantially as and for the purpose specified.

9. In a wire-stapling machine, the combination of a driving shaft, a reciprocating arm actuated thereby, the feed-bar,the feed-jaws, alever hinged to said arm and pivotally connected to said bar, an adjustable stop carried by the latter and limiting the pivotal movement of the lever in one direetion,and means whereby said lever is limited in its other direction of movement by one of said jaws, substantially as and for the purpose specied.

10. In a wire-stapling ina-chine, the combination of a driving shaft having thereon an eccentric, the eccentric-strap provided with an arm, a feed-bar secured on asuitable shaft, a bearing for the latter, a nut on said shaft, a cushion between said nut and bearing, a lever hinged to said arm and secured to a roek-shaft in said bar, an adjustable stop carried by the latter and limiting the pivotal movement of the lever in one direction, the feed-jaws, and a projection on said rock-shaft and limiting the movement of said lever, in the other direction, by contact with one of said jaws, substantially as and for the purpose specified.

11. In a wire-stapling-machine, the combination of a driving-shaft having thereon an eccentric, a swinging feed-bar, the forming bar, and the driving-bar, said bars being connected with and actuated by said eccentric through the eccentricarm, a pitman, and a beli-crank lever, respectively, substantially as and for the purpose specitied.

12. In a wire-stapling machine, the combination of a driving shaft, the feed-mechanism, the forming-bar, a revoluble pin actuated by said shaft, a pitman pivoted at one end on the pin and, at its other end, similarly connected with said forming-bar, the drivingbar, a belLcrank lever pivotally connected at one end with said driving-bar, and a link connecting the other end of the bell-crank lever with said pin, substantially as and for the purpose specified.

13. In a wire-stapling machine, the combination of the driving shaft having thereon an eccentric, a swinging feed-bar, the eccentric arm actuating the latter, the forming-bar, a pin carried bythe eccentric, a pitman pivoted at one end ou the pin and at its other end similarly connected with said forming-bar, the driving-bar, a bell-crank lever pivotally connected at one end with .said driving-bar, and a link connecting the other end of the bell-crank lever and said pin, substantially as and for the purpose specified.

14. In a wire-stapling machine, the combination of an anvil, a former, and a guideblock located back of the path of said former in close relation with and leading the wire to the back part of said anvil, and means for bringing it from such position into the path of the former, substantially as specitied.

15. In a wire-stapling machine, the combination of an anvil, a cutting-block, a cutter and former, and a guide located back of the path of said cutter and former, in close relation with and leading the wire to the back part of said anvil, and means for bringing said wire from such position forwardly into the path of the cutter and former, substantially as specified. y

16. In a wire-stapling machine, the combination of an anvil, a cutter and former, a cutting-block having a longitudinal groove in its rear side, mechanism for feeding wire to the back part ot' the anvil, and means for bringing the wire from such position into said groove and the path of the cutter and former, substantially as specified.

17. In a wire-stapling machine, the combination of an anvil, a cutter and former, the feed-mechanism, a guide-block. back of the path of the cutter and former, the cutting- IOO block, said blocks having registering parallel r ing the wire to the back part of said anvil,

and means for bringing said wire from such position into the path of the cutter and former substantially as specified.

19. In a wire-stapling machine, the combination of an anvil, an adjustable cuttingblock, a detachable cutter and formen-and a guide-block located back of the path of said cutter and former and having 011e end in close relation with the anvil, said blocks having registering parallel grooves in their meeting surfaces, forming a slot for the passage of the wire, the groove in the guide-block endingat and serving to lead such wire to the back part of the anvil and the groove in the cuttingblock permitting of the wire being brought from such position into the path ofthe cutter and former, substantially as specified.

20. In a' wire-stapling machine, the combination of an anvil, an adjustable cutter-block, and a presser-bar, the latter having detachably secured thereto a former provided with depending legs adapted to embrace said anvil, one of such legs having a cutting-edge adapted to be brought into cutting relation with said block, substantially as specified.

2l. In a wire-stapling machine, the combination of a stationary anvil, the staple-forming and driving mechanism, apusher at each side of said anvil, means for leading wire to the back part of the latter, and means whereby the pushers operate to shove such wire from this position into the path of the former and, subsequently, shove the completed staple from said anvil, into the path of the driver, before the admission of another length of wire thereto, substantially as specified.

22. In a wire-stapling machine, the combination of a stationary anvil, the staple-former, the staple-driver, a pivoted arm at each side of the anvil, means for leading wire to the back part of the latter, and a suitable spring for actuating said pushers forwardly until such wire is in the path of the former and farders contact with said former and such'wire is in the path of the former and farther forwardly, upon the release of such contact, for shoving the completed staple from said anvll, into the path of the driver, before the admission of another length of wire thereto, said driving-bar being adapted to thereafter strike said shoulders and effect the return of the arms to their initial position, substantially as specified. y

24. In a wire-stapling machine, the combination of a stationary7 anvil, the staple-former, the staple-driver, and a spring-controlled pivoted arm at each side of the anvil, provided each with a cam-shoulder and diminished portion and adapted, when free, to swing forwardly under the spring pressure and shove a length of wire from the back part of the anvil into the path of the former, said shoulders, by their contact with said former, barring further movement of the armsand when released from such contact permitting said arms to swing farther forwardly and the diminished portions to project into the space between said anvil and former and shove the staple formed of such length into the path of the driver, the contact of the driving-bar with said shoulders effecting the return of the arms to their initial positions, substantially as specified.

25. In a wire-stapling machine, the combination of an anvil, a cutting-block, a cutter and former, a guide-block located back of the path of the cutter and former and having one end in close relation with the anvil, said blocks having registering parallel grooves in their meeting surfaces, the groove in the guide-block leading wire to the back part of the anvil, and a pusher on each side of the IOO latter, adapted to shove such wire from this position into the groove in the cutting-block and to the front of the anvil, into the path of said cutter and former and, subsequently,` shove the staple formed of said wire off the anvil into the path of the driver, before the admissiony of another length of wire thereto, substantially as specified.

26. In a wire-stapling machine, the combination of a forming-bar having therein a longitudinal groove, a driving-bar sliding on the presser-bar, a driver in said groove and actuated by the driving-bar, a staple-former detaohably secured to the forming-bar and eX- tending wholly across one end of said groove, and a guide projecting partly over each side of the other end of the latter, substantially as specified.

27. In a wire stapling machine, the combition of a presser-bar having its lower end thickened or enlarged, a longitudinal groove in such enlargement, a former detachably secured to the latter and extending across the groove, a driving-bar sliding on the presserbar, a driver in said groove and actuated by 28. In a wire-stapling machine, the combination of a box or casing having therein an adjustable standard, a table supported by the latter, and a fixed 'projection on said standard below the lower edge of the box or easing, the space between such edge and projection permitting of the insertion thereinto of the article to be stapled and corresponding with the space between the lowest point of descent of the presser-bar and the top of said table, substantially as specified.

29. In a wire-stapling machine, the combination of a box or casing having therein an adjustable standard, a table supported by the latter, and a handle secured to said standard below the lower edge of the box or casing, the space between such edge and the shank of said handle permitting of theinsertion thereinto of the article to be stapled and corresponding with the space between the lowest point of descent of the presser-bar and the top of said table, substantially as specified.

30. In a wire-stapling machine, the combination ot' a box or casing, a standard adjustably sustained in said box or casing, a table supported by said standard, a longitudinal groove 0r slide-way in the latter, a reciprocating rod or bar having freedom of lengthwise movement in said slide-way, the clinchers, the clncher-slde connected to and actuated by said rod or bar, and a pair of links each pivot-ally connected to a clincher and said slide substantially as specified.

3l. In a wire-stapling machine, the combination of`a pair of pivoted clinchers, a slide suitably actuated, and a pair of links connected each to a clincher and said slide and having their` clincher ends inclined inwardly from the Vertical axes of their slide-ends, all arranged within a suitable casing, said clinchers being limited in their return movement by the sides` of the casing, substantially as specified.

32. In a wire-stitching machine, the combination of a fixed and a movable straightening roller on opposite sides ot' theinterposed wire, and an axially adjustable curved plate, supporting the movable roller, over the periphery of which the wire passes prior ,to its introduction to said rollers, substantially as specified.

33. In a wire-stitching machine, the combination of a fixed andamovable straightening roller on opposite sides of the interposed wire, an axially adjustable curved plate, supporting the movable roller, over the periphery of which the wire passes prior to its introduction to said roller, and a spring controlled detent in contact with said wire in its passage over said plate, substantially as specified.

In testimony whereof I have hereunto set my hand this 15th day of August, A. D. 1802.

ELDRIDGE R. JOHNSON.

Letters.y Patent-No. 496,314.

lGountersigned It is hereby certified that in Lea-.ers Patent No. 496,314, granted April 25, "1893," upon the application of Eldridge R. Johnson, of Camden, NervnJersey, for an improvement in Wire-Stitching 'Machines an error lappears in the printed specifictigonj` requiring the following correction, viz.: On,page 6, in line 42, a comma should bellinserted after the word"therebj.; and that the said Letters Patent should be read.y with this correction therein that the'same may conform tothe record of the case in the.

Patent Ofce. v

Signed, countei'signed, and sealed this 2d day of May, A. D. 1893.

[SEAL] GEO. CHANDLER,

" First Assistant Secretary of the Interior.

S. T. FISHER,

Acting Commissioner of Patents.