US1044292A - Drop-hammer-frame-adjusting means. - Google Patents

Description

H. TERHUNE.

DROP HAMMER FRAME ADJUSTING MEANS;

APPLIGATION FILED JUNE 5, 1911. 1,044,292, Patented Nov. 12, 1912.

2 SHEETS-SHEET 1.

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DROP HAMMER FRAME ADJUSTING MEANS.

APPLICATION FILED JUNE 5, 1911.

1 44,292. Patented Nov. 12, 1912.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE. HOWARD TEBHUNE, or CHAMBERFSEII; r N svLvANIA, AssIeNoE r0 pHAM-BEES- BURG ENGINEERING COMPANY, 0E cH MBEEsEURe, PENNSYLVANIA, A oo roEA- TION OF PENNSYLVANIA.

DROP-HAMMEB-FRAME-AIDJUSTING MEANS.

To all whom it may concern:

Be it known that I, HOWARD TERHUNE, a

citizen of the United States, and .a resident the two parts of a drop hammer relatively to each other, in, order that the two dies re spectively keyed to the anvil and to the ram of the hammer may be properly mated with each other; it being especially desired that the device shall be substantial as to its construction, shall be conveniently operable and have its'parts so disposed as to requirelittle if any attention or repairs even after prolonged periods of use. These objects and other advantageous ends I secure'as hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1, is a front elevation partly in section illustrating my invention as applied to a drop-hammer; Fig. 2, is a side elevation of the structure shown in Fig. 1; Fig. 3, is a fragmentary section illustrating the connection between the top and bottom portions of the frame, and anvil, and Fig. 4, is a perspective View of one of the bolts constituting .part of the invention.

In the above drawings 1 represents the anvil of a drop hammer on which is mounted the frame 2; there being between these parts a tongue and groove connection as shown in Fig. 3 whereby it is possible to move said frame transversely of the anvil.

On the anvil is a cap 5 held in place by a key 6 and in turn supporting a die 3 held to it by a key 4. The ram of the hammer is indicated at 7 and this has an upper die 8 held to it by a key 9. The anvil and frame are held togetherby inclined bolts 10 whose heads are disposed within suitable pockets.

of said anvil and which have springs 12 mounted between the nuts 11 on their upper ends and the adjacent surface of the frame.

For adjusting the position of the frame on the anvil in order that the dies 3 and 8 may be properly mated, I provide two adjusting bolts 13 each extending through one of the tongues 14 of the frame 2 and each provided with a hooked head 15 of the construction Specification of Letters Patent. Application filed m. 5, 1911.

tion tightly fits a Serial No. 631,230.

shown in Fig. 4. The anvil adjacent said head is provided with an undercut recess for the reception of the correspondingly formed part of the bolt head which tightly fits said recess and also at its upper por- -recess or pocket in the frame. I

The outer end of each of the bolts is threadedfor the reception of a nut 16 having integral with it atoothed collar 17 hearing on the frame; the anvil 1 being recessed as indicatedat 18 so that the nut rests exclusively on the frame. For holding said nut in any given position against the vibrat1on due to the operation of the hammer I provide a small tooth orplunger 19 mounted in a suitable cavity of the frame and nor- 'mally pressed toward the toothed collar 1 v by a' spring 20.

The frame adjacent the heads 15 of the bolts 13 is cut away so that the under face of each of said heads bears only on the anvil.

With this arrangement of parts if itbe de- 1 sired to shift the frame 2 toward the right side of the anvil in order to properly aline the dies 3 and 8, the nut 16 of the bolt 13 on the ri ht hand side of the machine, is to be slacke off while the nut on the other bolt will be tightened. As a result the frame 2 would be moved transversely of the anvil to the desired position and thereafter the nut of the right hand bolt would be tightened up so as to place said bolt in tension.

Owing heads 15 and the cooperating undercut portions of the anvil 1, the tightening of the nuts 16 of the two bolts 13 tends to draw said heads down on their seats in the anvil, and inasmuch as they tightly fit the cavities of the anvil and frame in which they are mounted, the admission of scale to said cavities is effectually prevented. There is thus no tendency for the head of the bolt to be forced or held out of its proper position and PatentedNov.12, 1912. j

to the provision of the'hooked in case one of the bolts should break it may. i

very quickly be removed merely b 1 removing the die and the anvil cap. T ereafter a 'new bolt may be-qnickly inserted without the necessity for removing the frame from tained under tension, a relatively durable construction is provided.- It is noted that the bolts 10 cooperate with the bolts 13 to cause the frame to tightly jam against the nuts on said latter'bolts, thus preventing a possible inward shifting of the frame 2 due to the shocks received from the hammer blows under operating conditions.

Another advantage of the use of the tension bolts 13 arises from the fact that there is no tendency for any oftheir partsto be battered or upset as would be the case were they in compression.

I claim 1. The combination in a drop hammer of a frame and an anvil movable relatively to each other; and means for adjusting said parts consisting of a. bolt having a hooked head; said head fitting an un'dercut cavity in one of the parts and having a nut operatlve on the other part.

2. The combination in a drop hammer of an anvil and a frame movable relatively to each other; with oppositely'placed bolts for adjusting said frame on the anvil, said bolts each having a hooked head and the anvil having undercut recesses for the reception of the bolt heads; with a nut for each of the bolts, bearing on the frame.

3. The combination in a drop hammer of an anvil and a frame movable relatively to each other; bolts for preventing the vertical separation of said parts; and other bolts normally in tension for adjusting the frame transversely of the anvil; the first bolts being inclined to the second bolts in positions to cause the frame to exert tension on said latter bolts,

4. The combination in a drop hammer of an anvil and a frame movable relatively to each other: bolts for preventing the vertical separation of said parts; and bolts normally in tension for adjusting the frame transversely of the anvil; said latter bolts having hooked heads fitting in undercut recesses of the anvil.

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

HOWARD TERHUNE.

Witnesses:

SARAH T. FRoMMEYER, A. A. LONGAKER.

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