US145754A - Improvement in pegging-machines for boots and shoes - Google Patents

Description

T. T. PRUSSER.

Pegging-Machines for Boots and Shoevs.

Patented Dec. 23,1873'.

. www??? UNITED STATES yPATENT OEELGEo TREAT T. FROSSER, OF CHICAGO, ILLINOIS.v

IMPROVEMENT IN PEGGlNG-MAC-HINES FOR BOOTSFAND SHOES.

Specification forming'part of Letters Patent No. 145,754, dated December 23,1873; application filed July 21, 1873.

To all whom 'it may concern:

Be it known that I, TREAT T. PRossER, of Chicago, in the county of Cook and State of Illinois, have invented certain Improvements in Machines for Pegging Boots and Shoes, of which the following is a specification:

This invention relates to that class of ma- -chinesfor pegging boots andshoes in which the pegs or nails are successively cut from continuous lengths or coils of wire, and deposited in a tube or barrel, t0 be forced, by means of a reciprocating' driver, into the sole of the boot or shoe borne up against the end of said barrel. My improvement consists, first, in such an organization of mechanism thaton each down stroke of the driver it iirst turns down from one side of the wire a chip or fin to form acne-sided head on the nail immediately afterward sheared from the wire, and then, simultaneously with driving the nail thus cut into the boot or shoe, delivers a blow upon the end of the wire, pointing it for the next nail; and, secondly, of certain novel devices constituting the jack for supporting and guiding the boot or shoe.

In the annexed drawings, Figure 1 is a sectional elevation `of my improved pegging-machine. Fig. 2 is a vertical longitudinal section through the head. Fig. 3 is a sectional plan view. Figs. 4 to 9 are views of details, to be more specifically referred to hereinafter.

The same letters of reference are used in all the ,igures in the designation of identical parts.

The frame of the machine consists of a tubular standard or post, A, and an overhung head, B, carried on the upper end' of the post, the lower end of which terminates in a suitable base, A. The wire, wound upon a spool or reel, C, is passed from above into the slotted part'of the headB, and between the feed-wheels D and E, which direct it obliquely into the upper end of the tube or barrel F, which is secured in a vertical position to the outer end of the head B. The shaft of the feed-wheel D turns in fixed bearings, and receives an intermittent rotating motionfrom the rocking beam G through the connecting-rods D2, which are, at their lower ends, pivoted to crank-arms D1, turning on the shaft of the feed-wheel. The

same pin which connects the cranks D1 with the rods D2 also passes through, and serves as a fulcruln for, the pawl D, which has a transverselyelongated bit to engage the ratchetteeth d formed on the rims, which border on the concaved milled groove d of the feed-wheel. The other end of the pawl D3, extending beyond its fulcruln, is connected to one end of a spiral spring, D4, which is secured to one of the rods D2, and holds the bit of the pawl in contactiwith the ratchet-teeth el. The feedwheel E is carried on the horizontal bifurcated arm of the bell-crank El, which passes through a slot in the end of the head B, where it is pivoted so that its vertical arm hangs down in front of the head. The elevation of the feed-wheel E, which governs the space between it and the feed-wheel D to adapt them for feeding various. numbers of wire, is regulated by the set-screw E2, which turns in a thread tapped in the lower end of the vertical arm of the bell-crank, and bears with its end against the head B. The jam-nut E3 locks the set-screw after adjustment. The front side of the nail-tube F forms a projection on the detachable end plate of the head B. The rear or inner side of the nail-tube is riveted to the front side, and extends with a shank, f, up into the guides or ways b b, between which the driver H moves. The end of the shank j' is oblique, having an angular surface, as best seen in Fig. 8. In feeding the wire over the oblique end of the shank f it strikes the oppo site side of the barrel, and is bent down into the aperture thereof, in the manner substantially as shown in Fig. 8, each motion of the feed-wheels projecting i-t the required distance into the nailtube, to form a nail when cut, at the lower inner edge of the shank j'. The driver H, carried on the outer end of the long arm of the rocking beam G, passes through an aperture in the top plate of the head B, between the guide-bars b b on the back of the end plate of the said head. Its lower end Hl is reduced in size, and iits snugly in the square aperture of the nail-tube, which is of somewhat greatcr area in cross-section than the wire. At the junction of this reduced end with the main stein an inclined or beveled surface, h, is formed upon vthe inner side of the driver, and its down stroke is so regulated that it will carry the lower end of this beveled sur- Aface down to the lower inner edge of the indriver. The setscrew h1 holds the driver in' position in the socket. The latter is pivoted in the fork of the rocking beam Gr by pivotcenters h2 h2, as best-seen in Fig. 3. The rocking beam G turns on trunnions in bearings of the standards Gr mounted upon the top of the head B, and reaches with its short arm over the tubular post A, to be attached, by pivot-centers z' c', to a loose collar or sleeve, Il, on the eccentric-rod I. This rod, which is screw-threaded upon its upper end, passesY through the sleeve, and, projecting above the same, receives a nut, I2, to secure it. The rod I passes down into the tubular post A, and is, at its lower end, secured to the strap of the eccentric I3 upon the driving-shaft K. In its downward throw the eccentric acts directly through its rod upon the rocking beam Gr, but its upward throw is transmitted thereto through the spiral spring I4, which encircles the eccentric rod between the fixed collar i thereon and the sleeve Il. Thus,as the eccentric-rod begins to ascend, the spring will, without further compression, oscillate the rocking beam until the descent of the driver H is checked by the protruding end of the wire in the nail-tube. rlhe eccentric-rod, continuing its ascent, now compresses the spring; but the driver II also continues moving', though it is retarded by the wire, which it cuts into obliquely, turningv down a chip or iin, a, as seen in Fig. S, which forms the head of the nail being severed. The tension of the spring is so regulated that just before the eccentric completes its upward throw it will have become so stift' as to act like a rigid bar upon the rocking beam to force the driver II through the wire, cutting off a nail therefrom. The moment the nail is thus sheared off the spring I4 recoils, and causes the driver H to deliver a quick blow upon the nail, driving it through the sole of the boot or shoe. At the same time the beveled surface h of the driver delivers a sharp blow upon the obliquely-cut end of the wire resting upon the beveled end of the shank f, and completes its pointing. The boot or shoe should be drawn on an iron last, so that the nail will be upset at both ends. The normal tension of the spring I4 is regula-ted by the nut I2, and is diminished or increased according as the machine works with thicker or thinner wire. IVhenever the tension of the spring is regulated, the length of the protruding end of the driver must also be changed in such a manner that the rise and fall of its lower end will always be through the same space. This adjustment of the driver is necessitated by the change in the position of the rockingv beam caused by the adjustment of the spring l. The dowmvard throw of the eccentric operates the feed-wheel D, which, in conjunction with its fellow E, projects the pointed wire into the nail-tube to a length suficient to form a nail, when severed by the next descent of the driver. It also turns the feed-roller L, bearing with its corrugated surface against the boot or shoe, and thusadvances the latter the distance which the next nail shall be from the one just driven. The journal of this overhung feed-roller turns in the hanger L1, through which it projects, terminating in a ratchet-wheel, L2. (See Figs. 2 and 6.) A short hub or stud is formed upon the outer face of this ratchet-wheel to receive a lever, L3, one arm of which terminates in a segmental pinion, meshing into the rack on the lower end of the connecting-rod L4, which is suspended from the rocking beam. The other arm of the lever L3 carries a spring-pawl, L5, which engages the teeth of the ratchetwheel L2. of the ratchet -wheel L2, and imparts through its pawl an intermittent rotation to the feedroller. The driving-shaft K projects through its bearings, and carries upon each end a flywheel, M, provided each with a crank-pin, on, which are connected, by the pitmen N, to the lever-arms of the treadle O. The crank-pins m are so arranged that the down-stroke of the treadle effects the upward throw of the eccentric I3. To provide against sudden jars upon the treadle resulting from the recoils of the spring I, I construct the pitmen N of straps of leather or other flexible material, and provide such straps at each end with a metallic yoke, u, by which they may be connected tov the pins or wrists on the ity-wheels and treadle. The ily-wheels are made of such size and weight that their momentum, gathered on the down-stroke of the treadle, will be more than sufficient to complete the revolution of the driving-shaft.

rIhe last of the boot or shoe is secured to the heel-pin P2 of the swinging hammer P1, which is suspended from the upper ends of the standards of the support or carrier P. The swinging hammer Plis providedwith a toe-plate, P3, upon which the toe of the boot or shoe rests. The base of the carrier P is provided with a lineof downwardly-projecting teeth, p, which are intended to engage with the teeth r on the periphery of the circular platform or disk It, which is to support the carrier l? in the manner shown in Fig. l. rIlhe disk R is slipped upon the post A, resting withrits short hub upon anti-friction rollers R', carried on studs upon the sides of the post. The aperture in the center of the disk R, through which the post passes, is tapering, so that, while it fits with its smaller lower end snugly around the post, its larger upper end affords considerable play to the disk, and permits it to readily adjust itself as changes in its position become necessary in operating upon different parts of the boot or shoe. The counter-weight S, carried on the pivoted arm S', bears down upon the wabbling disk R upon the side opposite to The lever turns loosely on the hub that Where the shoe carrier P is supported, and must be made suiiiciently ponderous to hold the boot or shoe up against the feed-roller L, and the nail-tube against the blows of the driver. l

As the shoe is regularly fed forward by the feed-roller L, the position of the carrier P is successively changed by hand by turning it on .the disk, so that the nails will be driven along a curvilinear line conforming to the irregular contour of the sole.

In operating with this machine, several carriers P are used, which are successively supplied with boots or shoes, and placed upon the disk It, as required.

I do not propose to claim, broadly, a mechanism which, on the descent of the driver, first forms a headed nail from a length of wire, and then drives the nail into the boot or shoe. The distinguishing characteristic of my invention, as stated in the iirst claim, consists in the use of a combined cutter and driver, which, in severing a nail, cuts obliquely into the wire, for the purposes explained.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a machine for pegging boots or shoes, a driver, H, which first, by an oblique cut, heads and shears a nail from a length ot' wire, and then drives the hea-ded nail thus cut into the boot or shoe, substantially as speciiied.

2. In a machine for pegging boots or shoes, a driver,H,Which irst cutsanail from a length of wire, and then, simultaneously with driving such nail, delivers a blow upon the end of the wire to point it, in manner substantially as shown.

3. rlhe driver H, having a beveled surface, h, in combination with the beveled end fof the nail-tube, substantially as and for the purpose specified.

4. rIlhe combination of the driver H, having the beveled surface h, nail-tube F having the beveled end f, and intermittently-rotatin g feed-wheels l) and E, substantially as speci lied.

5. The combined nail cutter and driver in combination with a spring \vliicl1,wl1ile ina compressed state, forces the driver through the wire, and, by its subsequent recoil, sends the driver to deliver the blow, driving the nail into the boot or shoe.

6. rEhe combination ot' the combined nail cutter and driver H, rocking beam Gr, eccentric and red I3 I, and spring I4, substantially as specified.

7. The combination of the vertically-adjustable combined nail cutter and driver H, rocking beam Gr, sleeve I1, eccentric and rod I3 I, spring I4, and nut I2, substantially as specified.

8. The combination of the kcombined nailcutter and driver H, rocking beam Gr, eccentric and rod I3 I, and shaft K, driven by a treadle through lexible pitman N, and carrying iiywheels M, substantially as and for the purpose speciiied.

9. The pitman N, composed of a exible strap and metallic yokes 'n u, in combination with the crank-pin m and treadle 0, substantially as speciiied.

I0. The combination ofthe wabblingrotatory disk R and counter-weight S, substantially as and for the purpose specified.

1l. A boot or shoe carrier, composed of the parts I P1 P2 I, substantially as speciiied.

12. The combination of the toothed Wabbling rotatory disk It r, and the toothed carrier I) p P1 I)2 I, substantially as and for the purpose speciiied.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

TREAT T. PROSSER.

Witnesses D. I). HoLLo'wAv, B. Enw. J. EILs.

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