US122876A - Improvement in machines for finishing horseshoe-nails - Google Patents

Description

nos.) H. A. WILLS. i

Improvement in Machines for Finishing Horse Shoe Nails. No. 122,876. V Paieniedian.i6,1s72.

UNITED STATES PATENTAQEElQE;

HARRY A. WILLS, OF VERGENNES, ASSIGNOR TO JULIA A. WILLS, OF SALTE PLACE, AND LUCY S. KINGSLAND, OF BURLINGTON, VERMONT.

IMPROVEMENT IN MACHINES FOR FINISHING HORSESHOE-NAILS.

Specification forming part of Letters Patent No. 122,876, dated J unuary 16, 1871.

Specification describing a new and Improved Machine for Gold-Rolling Horseshoe-Nails, invented by HARRY A. WILLs, of Vergennes, in the county of Addison and State of Vermont.

My invention consists in certain improvements ina machine for cold-rolling horseshoenails, after they have been formed, to harden and finish them, in which the guide of a feeding-screw that is used to conduct the nails to the pusher, by which they are delivered to the dies, is arranged'to change the nails from a vertical to a horizontal position, so that they can be delivered to horizontal dies. In these dies the nails are held by a movable disk or pin clamping them by the narrow sides between it and a fixed die over a bed-former, and rolled on the upper side by a roller-die in the end of a reciprocating bar, which is governed by a roller-guide and former above the bed-die. A holder is hung above the bed-die and arranged to come over the head of the nail as soon as the roller-die passes therefrom toward the point, and prevents the nail from bending upward by the action of the roller. The clamping-dies open when the roller-die passes off the point of thenail, the head-holder recedes, and a pusher discharges the rolled nail.

The invention will now be fully described and then clearly pointed out in the claims.

Figure 1 is a plan view of my improved machine with a part broken away, and Fig. 2 is a transverse sectional elevation of the saine taken on the line x rv, Fig. l. Fig. 3 is a crosssection through y y, Fig. l.

Similar letters of reference indicate corresponding parts.

A represents a screw-feeder, with a vertical guide at B, such as have been used before for feeding nails points downward, the nails being placed in the grooves of the screw, and between it and the side B, and held against falling through by the heads. Now, in order to utilize this kind of feeding apparatus for deliverin g the nails horizontally to horizontal dies, I provide a scroll-shaped or approximately scroll-shaped lip, C, upon the guide B under the screw, gradually turning from a vertical line, where the nail iirst comes against it at D, to a horizontal position at E, where the screwthread ends and ceases to act on it, leaving it under a groove, F, in the screw for allowing the head to pass under it, or a channel may be formed in the lip forfthe nail to drop into instead of the groove. G is a pusher, which is arranged to work through the vertical part of the guide to come against the head of the nail when left on the horizontal part of the lip C, and push it upon a bed-die or former, H, between a iiXed die, I, and a movable one, K, which close laterally against the narrow sides of the nail to hold it on the bed-die for being rolled, also for pressing and smoothing the sides. L is the roller-die, mounted at the side and one end of the reciprocating-bar M, which works under the stationary guide-former O, the face of which is the reverse of the upper side of the nail, and carries the roller-die to act with requisite pressure on all parts thereof, beginning at the highest part of the head and rolling down to a point. This roller-dieis pushed forward to the left, Fig. 2, before the nail is pushed forward, point foremost, under it by the pusher G until the highest part of the oblique side of the head comes against it. P is the head-holder, which consists of a short bar of steel, pivoted to the stock of the former O and projecting downward to a point above the head of the nail to prevent it from being forced upward by the tendency of the nail to bend under the action of the roller-die. This holder, being fixed on a pivot, Q, at the upper end, is pushed forward toward the screw A by the end of the bar M at the time the nail is being received, or just before, so that the lower end is elevated enough to allow the head of the nail to pass under it freely; but, as soon as the roller-die moves back to act on the nail, the said lower end is brought on the nail-head by the vibrating-arm Q pivoted at R to the movable stock S of the movable die K, and holds the nail from bending upward until the action of the roller-die ceases, and it passes olf the point 5 then the die K is withdrawn by a spring, T, releasing the nail both from it and the headholder l?, and it is discharged by a pusher, U. These devices may be operated by any suitable or approved arrangement of driving-gear, but in this example I have represented a driving-shaft at A', with a train of gears, B', for working the feed-screw; a cam, C', lever D', jointed connecting-bar F', stud G', and a spring, H', for working the pusher 5 a crank-pin, I',

and a yoke for it iu the end of the reciprocating-roller die-bar M for working it; a cam, K', and the spring T for working the movable clamping die-stock S', a cam, L1, push-bar Ml and Vibratin g-bar Q for moving the head-holder P back over the head of the nail; and a slotted stud, N', on the bar M and the curved lever O for working the pusher, all being arranged as shown in the drawing. The cam L1 is so adjusted to the crank which actuates the roller-die bar M that the low part L2 passes the end of push-bar M at the time the roller-die is in the forward position over the beddie, allowing said bar M to recede and allow theheadholder M to be moved forward by said die-bar to allow the nail to be pushed in; and the cam Cf for actuating the pusher is arranged in such relation to the said crank-pin that the pusher Gr is actuated to push the nail under the rollerdie while the latter is in the said forward position.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of the scroll-shaped or approximately scroll-shaped guide B C with the feed-screw, substantially as specified.

2. The combination of the pusher G with the roller and bed-dies, the said pusher and rollerdie and the operating devices therefor being arranged in such relation that the nail will be pushed forward when the roller-die is over the bed-die, substantially in the manner herein described. l

3. The combination of the head-holder with the bed-die and rollendie, substantially as specied.

HARRY A. WILLS.

Witnesses E. S. TAYLOR,

C. DoUGLAss, Jr. (103)

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