US244015A - woodfobd - Google Patents

Description

2 Sheets-Sheet 1.

Model.)

O. W. WOODFORD. MACHINE FOR roaeme HORSESHOE NAILS.

No. 244,015. Patented July 5, 1881.

' (ModeL) 2 Sheets-Shet 2.

G. W. WOODPORD.

MACHINE FOR FORGING HQRSESHOE NAILS.

" Patented July 5,1881.

I g p UNITED STATES PATENT OFFICE.

CHARLES W. WOODFORD, OF ESSEX, NEW YORK.

MACHINE FOR FORGING HORSESHOE-NAILS.

SPECIFICATION forming part of Letters Patent No. 244,015, dated July 5, 1881.

Application filed October 30, 1880. (Model) To all whom it'may concern:

Be it known that I, OHARLEs WELLINGTON WOODFORD, of Essex, in the county of Essex and State of New York, have invented certain new and useful Improvements in Machines for Forging Horseshoe-Nails; and I do hereby declare that the following is afull, clear, and exact description of the same.

My invention relates to the machines known as the Dodge machines, at present in use for forging horseshoe-nail blanks from bars and it consists in certain improvements on the different parts of the mechanism coacting to form the blank, whereby, with the machine working at a less rate of speed, an increased amount of production is secured, and in certain details hereinafter described.

Figure 1 is a plan showing myimprovements applied to a nail-forging machine. Fig.2 is a side elevation of same with frame partly broken away Fig. 3, a rear elevation of same, also with frame partly broken away; Fig. 4, a vertical longitudinal sectional elevation of same on line 1 1, Fig. 1; Fig. 5, a detail plan of nod-- die-pin, and Fig. 6 detail of gage-stock.

It will be understood that in these drawings those parts of the machine which remain unaltered are only shown sutficiently in detail to enable the improvements to be clearly understood.

Similar letters of reference indicate like parts.

A is the frame of the machine, of suitable construction and strength to carry the several parts, B being the roller-shaft, carried in bearings formed therein, and operating, as usual, the devices for forging-i. e., rolling and hammerin g out-the blank; and (J is the cam-shaft, by which the several devices for carrying the rod, gaging and griping it, and cutting it off are worked.

I propose to impart the requisite motion from the roller-shaft B to the cam-shaft O in the following way: Parallel with these two shafts, and carried in suitable bearingsformed in frame A, I arrange a counter-shaft, D, rotated by a pinion, B, on the end of the rollershaft, intermeshing with a spur, D, on the counter-shaft, on the end of the latter being set a pinion, D intermeshin g with a spur, C, on the end of cam-shaft G.

e c formed thereon.

The next portion of my invention relates to the construction and arrangement of the pitman operated by the roller-shaft, and is shown more particularly in Figs. 3 and 4.

The pitman itself, instead of being a single rod or bar, is composed of two rods, E E, bent out as shown in Fig. 4, having shoulders c 0 Upon the upper shoulders, e e, rests the plate F, slipped over the upper ends of these rods E, on this being placed boxes G, receiving between them the roller'shaft B, and on these being set the plate F, the whole being secured preferably byjamnuts f f, in the usual way. Boxes H are secured on the lower end of the pitman by plates I I and held in place by jam-nuts i, and carry between them, in a ball-socket, the rounded end K of the noddle-pinK, which is fitted to a mortise in the hammer L, and is, as shown at 70, Fig. 5, slotted at one end, and secured to the hammer L by a screw-bolt passing through the slot 70, while its other end is held by a strap passing over it, thereby allowing a longitudinal motion to be obtained for adjustment. This construction of the pitman allows the die L, attached to the hammer L by a strap or'in any usual way,'to be made much longer than at present, and by this arrangement a far larger relative proportion of the material of the die can be used up than by the ordinary construction. The constructionof the noddlepin and the connection thereby of the pitman with the hammer also do away with the necessity of strict adjustment of these parts and make them self-centering.

The operation of the hammer and roller in forging the nails is similar to that now in use and need not be further described.

In Figs.1 and 4 is shown the improved gagestock, which may be thus described The spindle M is carried, as in Fig. 4, in any suitable hangers or projections, being supported at either end upon centers. This con'structionis designed to prevent the accumulation of scale and dirt in the bearings, which has always been a source of great inconvenience in previous machines and where the spindle turns in a bearing bored for it through the frame. M is the head of the gage-stock, bored out to receive the arm N, screwed and secured adjust} ably therein by j am-nuts m, and having abent end,N, which acts as the stop for the nail-rod. Upon the lower part of this spindle M is secured a lug or projection,1VI ,im pinged against by the cam O, mounted on the shaft 0, so as to turn the spindle and bring the'end N to the position shown in Fig. 1-6. e., that which will stop the bar-in which position it is held until the griper, constructed and operating in the usual way, comes down and holds the bar. The cam in its revolution releases the projec: tion M and the spindle M, carrying the stop, is restored by a spring or other suitable device to its normal position.

In Figs. 1 and 2 are shown my improvements in the construction of parts connected with the carriage on which the nail-rod is placed. P is the cam operating the lever P and rockshaft P and through these giving the throw to the lever Q, pivoted to the block or lug r,

projecting downward from the carriage R, allthese parts being of the usual construction. I propose, however, to arrange immediately under the carriage, and either cast in one with the frame or secured thereto, projections S S, on the inner faces of which are formed curved grooves S. In these run boxes T, receiving the journaledends U of the square bar V, which is attached to another projection, r, from the carriage. V may be a square sleeve and U a spindle extending through it. By this arrangement the carriage is maintained in a horizontal position during its reciprocal movement. The sle eveV,'supporting the end of the carriage and rocking upon the spindle U, conforms to the arc of the circle described by the end of the lever Q.

Having thus described my invention, I beg to state that .what I claim as new, and desire to secure by Letters Patent, is-- l. The noddle-pin K, slotted and secured in a mortise in the under side of the hammer L by a screw and strap, as and for the purpose set forth.

2. The improved gage herein described, consisting of spindle M, carried in centers, and arm N, screwed through threaded head of said spindle and adjusted by jam-nuts m, substan tially as and for the purposes set forth.

3. In combination with the carriage for the nail-rods, projections S, having curved grooves, boxes T, and square sleeve V, provided with journaled spindle U, substantially as set forth, and for the purpose described.

Essex, New York, 25th day of October, A. D. 1880.

CHARLES WELLINGTON WOODFORD.

Witnesses JOHN HOSKINS, H. L. BARTHoLoMEw.

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