US309446A - Wire-nail machine - Google Patents

Description

(No Model.) 6 Sheets- Sheet 1.'

R. EGLI.

I WIRE NAIL-MACHINE. NO. 809,446. Patented 1360., 16, 1884.

N. PETERS. Phnlo-Lilhngmphcr. Washinglofl, D, c.

(No Model.) 6 v8heets-Shee't 2.

R. EGLI. i

WIRE NAIL MACHINE.

Pifi finted Dec. 16, 1884..

WITNESSES:

, ATToRNEYs.

N4 PETERS, Plwku Lxlhcgr-mphnr. \vaamn mm D. a

(No Model.) 6 Sheets-Sheet 3..

R.E G-LI.

WIRE NAIL MACHINE.

No. 309,446. Patented Dec. 16,1884.

WITNESSES N. PETERS. Phnlmhlhogmphur. Washin mn. n.c

(No Model.) 6 Sheets'-Sheet 4.

WIRE NAIL MACHINE. No. 309,446. Patented Dec; 16,1884.

WITNESSES o Mod l.)

6 Sheet 5 WIRE NAIL MAUHIN W VENTO V BT6 I ATTORNEYS (No Model.) 6 Sheets-Sheet 6.

RQEGLI. WIRE NAIL MACHINE.

No. 309,446. Patented Dec. 16, 1884.

WITNESSES: INVENR ATTORNEYS,

N. PETERS Fi m-Lmm m hcr. .vnshm mm D. C.

llniirnn Sra'rns ATENT tries.

ASSIGNMENTS, TO LEW'IS M. LO

SS, OF ROCHESTER, N EW YORK.

WlRE NAlL MACHINE.

SPECIFICATION forming part of Letters Patent No. 309A 1-6, dated December 18, 1884:.

Application filed February 21, 1884. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, RUDoLF EGLI, of Rapperschwyl, in the Republic of Switzerland, have invented certain new and useful Im- 5 provements in Machines for Making Shoe Nails and Tacks, of which the following is a specification.

This invention has reference to an improved machine for making shoe nails and tacks of any desired size and shape from a continuous piece of wire that is fed to the machine and cut into nail-blanks of peculiar shape, which blanks are acted upon successively by the different mechanisms constituting the machine,

1 so that with each fall rotation of the driving shaft an entirely-finished nail or tack is produced.

My improved machine forms more especially a modification of the machine for making shoe and upholsterers nails for which Letters Patent of the United States have been granted to me heretofore under date of July 3, 1883, No. 280,458, the modifications being designed with a view to make the machine more compact and of simpler and less expeu sivc construction, and specially adapted to make nails and tacks of a smaller size.

The instrumentalities employed in my improved machine which forms the subject-mat- 0 ter of this application are in general the same as those which have been employed by me in the patented machine referred to, to wit: first, a mechanism for taking up and inter mittently feeding the wire; second, a wireholding mechanism third, a wire cutting mechanism, whereby nail-blanks of proper size are cut off from the wire; fourth, a nailblank carrying mechanism which conducts the blank from the cutting-knives to the jaws of the head-forming dies; fifth, the headshaping dies, which consist of lower holding-dies and a drop-die; and, sixth, a mechanism for throwing out the finished nail.

Instead of actuating these different mechanisms from one powershaft at the upper part of the machine, as in my former patent, I propose to locate the driving-shaft at the lower part of the machine, and to employ an auxiliary shaft at the lower part of the machine, whereby the actuating mechanisms are concentrated at the lower part of the machine, so that the machine is rendered more compact, more stable, and less complicated.

The invention consists more especially in the specific construction of the different actuating mechanisms and their combination with the power-transmitting shafts.

In the accompanying drawings, Figure 1 represents a front elevation of my improved machine for making shoe nails and tacks with the wire-reel removed. Fig. 2 is a rear elevation, Fig. 3 a side elevation, and. Fig. 4. a plan, of the machine. Figs. at and 4: are details of the nail-blank-carrying mechanism. Fig. 5 is a vertical transverse section of the 6 5 machine on line or m, Fig. 4. Fig. 5 is a detail of the wire-holding mechanism, located immediately below the cutting-knives. Fig.

5" is a detail of the wirefeeding mechanism. Fig. 6 is an end elevation of the nail-blankcarrying mechanism, drawn 011 a larger scale; and Figs. 7 and 8 are respectively a detail view of the lower nail-holding dies and a horizontal section of the same on line 3/ Fig. 7.

Similar letters of reference indicate come sponding parts. I

A in the drawings represents the support ing-frame ofthe machine, which frame is made of cast-iron or suitable material; A, the bed plate of the same, and B a horizontal table at the upper part of frame A.

At the rear part of the frame A, at some distance below the table, are arranged brack etbearings a a for the main driving-shaft S, that receives rotary motion by a belt-aud-pulley transmission from a suitable power-shaft. A fly-wheel, S, is arranged on the main shaft S, close to the fast and loose pulleys of the same, as shown in Figs. 1 and 2.

At the lower part of the frame A,and vertio cally below the main shaft S, is arranged an auxiliary shaft, S, which turns in bearings a, and which receives rotary motion by strong gear-wheels b b from the main shaft S.

At the lower rear part of the frame A is ar- 5 ranged a wireree1, O, which is supported in bracket-bearings a as shown in Fig. 5.

From the wire-reel Gthe wire from which the nails or tacks are made is fed to the machine, it being first taken up by the intermittently- IOO actuated wire-feeding mechanism D,- which is arranged at the rear part of the machine, and then taken up "by the wire-holding mechanism D,whieh is arranged above the feed mechanism,and intermediately between the same and the cutting-knives.

The wire feeding and holding mechcmism. The wire-feeding mechanism D is shown in Figs. 2 and and in detail in Fig. 5". It consists of afiXed perforated eye, (I, that is rigidly secured to the frame A, and provided with a vertieallyadjustable stop-screw, (1, forward of the guide-perforation for the wire. A lat eral arm, (1 is pivoted to the rear part of frame A, as shown in Fig. 2, which is provided with an angular rearward-projecting bracket, d having a socket for a transverse steel cheek, d, of cylindrical shape, which check is rigidly secured in its socket by asetscrew, 01 The steel cheek dproj ects slightly beyond its socket, as shown clearly in Fig. 5. "When the projecting portion of the steel cheek d* is worn by use,it is turned in its soeket,and thereby another part of its circumference exosed to wear. The bracket d is provided with two downwardlyprojecting ears, d, to which is pivoted an oscillating lever, d having upwardly-extending sleeves dithat guide, respectively, the serrated adjustable steel jaw d and its set-screw (1 The adjustable jaw d and its set-screw (F are arranged in line with each other and at right angles to the steel cheek d", the wire passing up between the check (1* and serrated jaw d, so as to be rigidly taken hold of by the same at the proper moment for feeding the wire.

To the outer end of the lever d is pivoted the lower end 'of. a lever-arm, d, the slotted upper end of which embraces the main shaft S, and is provided with a roller, (1, that is engaged by a cam or nose, (1, on the shaft S. At each revolution of the shaft S the nose (1 engages the roller (7, and lifts thereby the lever-arm d and lever (1 so as to cause the serrated end of thejaw cl to bite the wire and press it rigidly against the convex projecting cheek d", as shown clearly in Fig. 5". As the lateral arm d is lifted simultaneously by the action of the lever mechanism (1 (1 the wire is thereby lifted to a length corresponding to the size of the blank to be cut off. The moment the nose (1 passes the roller (1 the le 'verarm d and thelever d are dropped,whercby the jaw d is released from the wire, which is retained by the holding mechanism D next above. The lever d is stopped in its downward motion by the head of the stop-screw d, which, in connection with the nose d, controls the length of feed. The stopscrew (1 may be adj ust-ed higher orlower in its socket, according as a smaller or larger nail-blank is to be cut off by the cutting-knives.

From the wire-feeding mechanism D j ust described the wire is passed through a fixed vertical guide tube, (1, which serves to straighten the wire, and is then delivered to a guide-tube, d, of the holding mechanism D. The vertical guide -tube (1 has a conically flaring lower end, which serves as a scraper, and removes from the wire any small metallic particles adhering thereto, which are dropped to the bed-plate. Above the guide tube d are arranged at opposite sides the wire-holdin g jaws which are arranged vertically above each other, as shown in Fig. 5. The holding-jaws d have slightly concaved faces, and are so adj usted by their set-screws d that they impart a considerable friction on the wire, and prevent the same from receding when the feeding mechanism D is dropped.

The nail-blankcutting mechanism-The nailblank cutting mechanism consists of two knife-levers, E E, which are applied to a transverse fulcrum, e, and provided at their lower ends with anti-friction rollers e, that take into symmetrically arranged cam grooves e on the auxiliary shaft S, so that the levers E E are simultaneously oscillated on the fulcrum. The enlarged upper ends of the knifelevers E E have longitudinal recesses c, within which the cutting-knives c are rigidly secured by tapering keys e and accurately adjusted by set-screws e as shown clearly in Figs. 4 and 5. The cutting-edges of the knives e are curved, so as to produce a diagonally-curved out across the projecting wire end, which forms the characteristic feature of my nail.- making machines, and which is fully described in the prior patent hereinbefore referred to. As both knives are oscillated, they exert a joint cutting action, so as to form the pointed shank of the nailblank, the thicker projecting part of which is formed afterward into the head of the nail or tack. According to the size of the upper and thicker part of the nailblank, the head of the nail or tack can be made larger or smaller, as required by the size and shape of the nails or tacks to be produced. The shank of the nail-blank is not pressed into shape at this point, as in my former machine, but remains in the condition as it is delivered from the knives. As soon as the wire is fed upward and before it is cut off by the knives, the projecting end of the wire is taken hold of by the jaws of the nail-blank carrier F, so as to be conducted from the cutting-knives forward to the lower holdingjaws of the nailshaping dies.

The na il-blcmhcarrying mechanism. The nail-blankcarrying mechanism F is shownin Figs. 45", 4", and 6. It consist-s of two separate actuating mechanisms-one by which reciprocating motion is imparted to the carrier F, and one by which the fingers of the same are opened or closed at the proper moment. The mechanism for reciprocating the carrier is operated from the main shaft S by an eccentric, f, which is connected bya pivot-link, f, with an oscillating lever, f", that is pivoted at its lower end to supports on the bed-plate A, as shown clearly in Fig. 3. The upper end of the lever f 2 is oscillated between adjustable ICO IIO

f at the proper height above f of the carrier F collars f of a horizontal rod, f. The rodf is guided by a laterally-adjustable sleeve, f, arranged on the table I and provided at its opposite end with a lateral arm, f, that extends at right angles from the rod f toward the nail-torming dies. To the lateral arm f is applied a guide-piece, f which extends backward parallel to the rod f and which rests on a iixed guide-arm,f", which also cX- tends backward parallel to the rod f. The guide-arm f serves to support the guide-piece the table 13. In the gui 1le-piecef are transversely guided the parallel shanks f of the jawsf", the latter being vertically adjustable in the sockets of the shanksf" by set-screws/" A bell-crank lever, f, is pivoted at one end to bcaringsof the guidepiece f the pivot f engaging by camsf" recessesf of the parallel jaw-holding shanks, as shown in Fig. it. end of the bell-crank levcrf is provided with a stud, f, that is acted upon by a horizontal oscillating lever, f. This levcris secured to a pivoted sleeve f, at the front part of the machine, and connected at its rear end by a socket-sleeve, f, with a lateral pivot-rod, the opposite end of which is a 'iplied to the upper end of a vertical lever, f that is pivoted at its lowerend to the bed-plate A. An intermediate roller, f, of the le verf is engaged by a grooved cam ,f, on themain shalt S, as shown clearly in Fig. 2, whereby a laterallyoscillating motion is imparted to the lever f and to the horizontally-oscillating lever f. This motion is transmitted by the lever to the bell-crank lever f, as shown in Fig. 4, whereby the cams f of the pivot move the jaw-holding shanks f in opposite directions to each other, so as to open thejaws f. An exterior heel, f, of the pivot f is acted upon by the free end of a strong spring, f', which is attached to a projection of the guidepiece f The spring f serves to return the jaws of the carrier into closed position as soon as the oscillating lever f recedes from the stud f" of the bell-crank lever f Thejaws take hold of the projecting end of the wire, which is then cut by the knives, after which the carrier is moved with the nail-blank forward until its jaws 1"" ar rive vertically above the jaws of the lower nail-forming die, at which point the jaws are opened, so that the nail-blank is dropped into the jaws of the lower die. The carrier F is then moved backward again into its rearmost position above the projecting end of the wire, so as to be out of the way of the d rop-die, by

which the head of the nail or tack is formed.

The nailforming dicta-'lhe dies by which the proper shape is given to the head of the nail or tack are shown in Figs. 1, 7, and 8. They consist of the lower die, G, which is formed of two jaws, g 1 that form a kind of anvil, and of the drop-die G. The jaw y is fixed and supported on a vertically-adjustable rest'block, 9 of the supporting-frame of the l of the drop-die, according The outer machine. The second jaw, g, is pivoted at its lower end to a socket oi. the fixed jaw g, and acted upon by a strong spring, which presses the jaw g tightly against the jaw The movable jaw g is moved laterally against the tension of the spring g by a stirrup, g, which extends around the movable jaw and which is attached to a horizontally-gnided piece, 9 the heel g of which is engaged by a keeper, secured rigidly to the upper end of a fulcrumed lever, g. The lower end of the fulcrunied lever f engages by a roller-pin, 0", a cam-groove, of the lower shaft, S whereby a laterallyos cillating motion is imparted to the lever g". A check, 9, at the upper end of the fulcrumed lever 1 is adjusted by a set-screw, g, to the guide-picco o, whereby the exact degree of lateral motion of the movable jaw gis regulated. By the action of the lever g and check 1 theguide-piece is moved sidewise, so as to press the jaw g against the fixed jaw while by the action of the keeper on the heel 0 ol' the guidepiecc the jaw gis moved away from the fixed jaw g, and thereby the jaws g r/ opened. \Vhcn the nail-blank carrier F arrives at the forward end ofits motion, the nail-blank is vertically above thejaws g, which are then in open position. The carrier F dropsthe nailblank into the socket formed by tapering grooves in the faces of the jaws which are then closed onsaid shank, so as to firmly hold the blank in position. As soon as the carrier 13 has delivered the blank to the jaws y, it (the carrier) is moved back, so as to be out of the way of the drop-die G, which then drops and forms the head of the nail or tack. The drop-die G corresponds to the size and shape to be imparted to the nail-head, and is adjusted by setscrcvs in a vertical socket, 1 which socket is supported by a horizontal shank, that extends at right angles from the socket in aslceve-shap ed portion, 5 of the vertical shank G of the dropdic (l. Set-screws g secure the horizontal shank g of thesockct g rigidly in the enlarged portion 1/. The proper position of the dropdie G in the socket g is adjusted by a set-screw, which is vertically in line with the center of the drop-die G, said setscrew being flllillClll'lOlG seen red by a second horizontal set-screw, g. By means of the set-screws g, g, and .g the drop-die G can be set into exact position relatively to the lower die, G, as required by the size of the head to be formed, A headed rod, is ap plied to the upper end of the shank G of the drop-die, and acted upon bya strong V-shaped or other spring, G, of wood or other suitable material, which is connected to theceiling or other point of support. The upper end of the spring G is connected by straps g' and clampscrcws y to slotted side rods, that are secured to bracket-plates 9 of the shank i of the drop-die. The spring G serves to impart a greater or smaller force to the blows as larger or smaller I CC;

therefore,

1 against metal, and

nails are to be made on the machine. The operation of this spring is fully described in the patent heretofore referred to, and requires, no further description. The shank G of the drop-die G is guided in vertical ways 9" of the supporting-frame A of the machine, the weight of the shank and die-sockets portion imparting, in connection with the force of the spring G, the required power by which the head of the nail is formed. The shank G of the drop-die is lifted at the proper moment by a cam, 9 on the lower shaft, S and dropped at the required moment. To cushion the blow of the drop-die the enlarged portion g drops on a leather or other cushion, y, at the upper end of the guideways g of the shank G so as to prevent the striking of metal prevent also the battering or injuring of the heads of the jaws-g g of the lower die, G.

The throwingout mechanism-This mechanism is shown in Figs. 1, 3, and 4. It 'consists of a throwing-out lever, h, that is placed between the jaws g g of 'the lower die, G, and secured adjustably to a socket, h, of a horizontal rod, h which turns in fixed bearings 71 of the supporting-frame. A crank-arm, h", connects the shank of the socket-rod h with a pivot-rod, If, and a fulcrumed lever, h, at the lower part of the machine. The opposite end of the lever h is provided with an inclined nose, h, that is engaged by a projecting steel nose, h of acam, 7L9, on the lower shaft, S. At each revolution of the shaft S the lever h is thrown forward, which motion takes place at the moment when the lower jaws, g g, are separated from each other after the head of the nailhasbeen formed by the blow ofthe drop-die .G. The nail is thereby ejected with considerable force from the jaws g g, and dropped in a suitable receptacle arranged for this purpose at the front part of the machine. Thejaws are held in open position until the next blank is conducted to them by the carrier F, the throwing-out lever it being returned into its normal position between the jaws, as shownin Fig. 3.

Operation of the machine.-The general operation of the machine is the same as that of the machine heretofore patented to me. The wire is fed by the feeding mechanism to the wire-holding mechanism and to the cuttingknives, and cut in a diagonally-curved line across the wire in such a manner that alarger portion is formed at the upper part, and a small pointed shank at the lower part, of the blank. The head of the nail-blank is taken hold of by the jaws of the nail-blank carrier, which conducts the nail-blank to the jaws g g of the lower die, Gr, the latter holding the shank of the nail-blank until the blow of the drop-die forms the head of the same. The carrier moves back toward the cutting-knives after the jaws gg have taken up the-nailblank, and takes up the next blank which is out from the wire by the cutting-knives, the

wire having been fed forward by the action of the wire-feeding mechanism. As soon as the nail or tack is formed, it is thrown out by the ejecting-lever. Each complete revolution of the driving-shaft will form, by the successive action of the mechanisms described, one complete nail or tack, the head of which may be of any size or shape, and either plain or fancy, as required.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The feed mechanism herein described, consisting of an oscillating lever, (1 socket d steel cheek d, an adjustable jaw, of, a hinged oscillating lever, (1 a slotted pivot-arm, d, having a pin, (Z and shaft S, having a nose, at, substantially as set forth.

2. In the feed mechanism herein described, the combination of the oscillating lever (1", having a socket, d, a cylindrical steel cheek, d, set-screw d, hinged lever d, guide-sockets (l steel jaw d, and set-screw d substantially as set forth.

3. In a blank-carrying mechanism for nailmachines, the combination of the parallel sliding shanks f, having the blank-holding jaws, and having the recesses f, the pivot f having the cams f and means, substantially as described, for rocking the pivot), as and for the purpose shown and set forth.

I. In ablank-carrier for nail-machines, the combination of the parallel sliding shanksf having the blank-holding jaws and the recesses f, the pivotf the elbow-lcverf, havinglug f the spring f, and the means, substantially as shown and described, for holding the elbow-lever tilted. during the rearward stroke of the carrier, as and for the purpose shown and set forth.

5. In a nail-machine, a nail-blank-carrying mechanism consisting of the parallel shanks f", having jaws f guidc-piece ff, pivoted elbow-lever f, having a heel, f Sp1111gf, oscillatinglever f lateral connecting-rod f oscillating lever f having a roller-pin, f, and shaft S, having cam-groovef, whereby the jaws are opened or closed at the proper moment, substantially as specified.

6. In a nailmachine, the combination of the parallel shanksf, having jaws f a guide piece, f", a fixed angular guide-arm,f a reciprocating arm, fj', having end collars, f", a fixed guide-sleeve, f, a pivoted 1cver,f, connecting cranlcrod f, and shaft S, having cam f, whereby a reciprocating forward and backward ,motion is imparted to the nailblank carrier, substantially as set forth.

7. In a nail-machine, the combination of the fixed wire-holding jaws d cutting-knives e fulcrumed knife-levers E ll, and shaft S", having cam-grooves c engaging rollers e of the knife-levers, whereby a laterally-oscillating motion is imparted to the cutting-knives, substantially as set forth.

8. The combination of the lower holding- 309A6 i I 5 dies, G, composed of a fixed jaw, g, and a lat l erally-movable jaw, g, with a horizontallyreciprocating guide-piece, having a stirrup, g, and heel g, i'nlernnied lever hav ing a keeper, and adjustable cheek 'g, and

RUDOLF EGLT.

shaft S, having cam-groove g, engaging so as to open or close I as set forth. 1

l l l roller of the lever g, the jaws, substantially 9. The combination of the drop-die G, a vertical socket, having set-screws and horizontal shank main shank G having a sleeve, g and set-screw g", and a set-screw, g, in line with the drop-die G, substantially as set forth.

W'itnesses:

.lionis (J. Rnncnnnn, SIDNEY DIANN.

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