US65941A - Appaeatus - Google Patents

Description

651941 PATENTED JUNE 18, 1867.

J. PRICE FORGING APPARATUS.

I A Wziyzaasea:

@Initrh gitstrs igment @ffitti JOHN PRICE, on New YORK, N. Y

Letters Patent No. 65,941, dated June 18, 1867.

IMPROVED FORGINGAPEARATUS.

flit: Stigibuls rthmh in iuflgcst fittttrsflihtmtmit mating part at tlge stmt.

TO ALL WHOM ,IIIMAY CONCERN:

Be it knownthat I, JOHN PRICE, of the city, county, and State-of New York, have invented-certain new and useful Improvements in Power-Hammers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference. being bad to the accompanying dra'wings, and to the letters of reference marked thereon.

The object of iny invention is to provide a means for catching and holding the hammer at or near its highest elevation whenever the operator desires more time to manipulate the work than that which can be used between two strokes of the hammer, whenever the power which drives the hammer is disconnected or in any other case where it is desired to stop the hammer at or near its highest point. It consists of crack, spring, and slidin catch so constructed and arranged in relation-to the hammer-head that on sliding the said patch toward the said week it will take into the teeth of the latter and stop the hammer, the said spring receiving the shock and preventing the breaking of theparts. It consists, also, in a combination of certain devices hereinafter described for imparting inotion to the said sliding-catch tolstop the hammer, as set forth, when the power which drives the said hammer is disconnected. In the accompanying dra\vings--- Figure 1 is a front elevation, with my improvements attached thereto, of one of that class of hammers In which the hammer-head itself is driven by means of a piston, working in a cylinder, which is, in turn, driven by a crank and connection from the driving-shaft.

Figure 2 is a. side elevation of the same.

Figure 3 is a detail view of the devices for disconnecting the power.

Figure 4 is a vertical section parallel to the front of fig. 1, andpassing through the rack, spring, and sliding-bolt.

Figure 5 is a top view of the hammer-dread.

Figure 6 is a section of the same through the line a: 1-, fig. 4.,

A'is the hammer, B the piston, C the cylinder, and E the frame of the machine. A projection or yoke, F, is cast on the hammer head and a recess made immediately under the middle of the said yoke in the said hammer head. In this recess and under this yoke are piaeed the rack G and spring or springs H H. A red, I, passes through the said springs through the top of the yoke F and screws into the head of the rack G, the object (at having the red I so connected being tofurnish a means for inserting orremoving the said rack and spring, and to do this the red I is unscrewed and removed. A square head on the -rod enables me'so to remove it. In a recess or slot in one of the jaws or wayson which the hammer slides is placed the sliding-bolt or catch J, which takes into the teeth. on the rack G to stop the descent of the hammer, when operated for that purpose by any suitable device. ihe devices which are used for operating this-sliding-catch J in the fornrshown in the drawings areseen .in figs. 1, 2, and 3. A chunk, a,'onthe rock shai'tf, is connected to the sliding-catch J by the pin C, which works in the slot-d in the crank a. The rock-shaft b is driven by a crank, e, and c'onnection,f, from the levers g, on which the friction-pulley h .is hung in such a way that when the said friction-pulley is pressed up against the belt a, by hearing down on the handlej thesame motion withdraws the sliding-catch J from the rack G and allows the hammer to operate, and whenthe pressure is taken from the handlej and the frictionpulley It falls back from the belt 1', the said sliding-catch Jis thrown in so as to take into the teeth on the rack G and stop the hammer. These devices form a, convenient and cheap means for operating the sliding-catch J when my improvements are attached to a power-hammer of the form and construction shown, but it is very obvious that the principal feature of my invention, 2'. e., the combination withu hammer-head of a rack, spring, and sliding-catch, is equally applicable to almost or quite any form of powerhammer in which the hammer itself has a reciprocating motion. -Much difficulty has lgcen experienced in the operation of power-hammers for the following reasons: that they cannot in many cases he stopped quickly enough; that the operator cannot stop thomwhile the hammer is up in.order to turn oi otherwise manipulate the work in hand; and that .the hammerhead rests on the lower die when the hammer is stopped, rendering.it necessary to start the hammer and put the work on between two blows," which is often a very diflicult operation. All these difliculties are overcome by my invention. I

' It is obvious that various modifications of this invention may be employed without departing in any essential par-ticular therefrom,'as, for exalnple, the rack and spring may be inserted in a proper recess in one of the side pieces or ways, and the sliding-catch set in a channel or opening in the hammer-heed and operated by a slide or other device which might beibrought to bear on the end of the snidcntch or own. pin projecting fromit. I

do not, consequently, confine myself to the exact construction shown, but I claimv -1. The combinntion, with the hammer-head, of a rack, spring, and sliding-catch, substantially as and for the purpose set forth. v

2. Openating the sliding-catch J' by means of the lever g, which connects and disconnects the power for driving the hnmlnei the said lever g being connected for that purpose to the sliding-catch J by the arm a, rockshoft 6,31!!! e, andconn'ecting-rod or link f, or by their equivalents, in such a. mannen thnt'the said sliding-catch J will be thi'own'inward to catch the hammer when the power is disconnected, and drown out to release the hammer when the power is u pplied by the levei' g, substantially as and for the pnipose set forth. V

' Y I JOHN PRICE.

Witnesses:

Tnosr 1?; How, -R. H. Sexton,

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