US515919A

US515919A - Drop-hammer

Info

Publication number: US515919A
Authority: US
Publication date: 1894-03-06
Anticipated expiration: 1911-03-06

Description

(No Model.)

B. W. MERRILL.

DROP HAMMER.

N9. 515,919. Patented Mar. 6, 1894.

UNITED STATES PATENT OFFICE.

EDWARD W. MERRILL, OF BROOKLYN, NEW YORK.

DROP-HAMMER.

SPECIFICATION forming part of Letters Patent No. 515,919, dated March 6, 1894.

Applicationfiled June 7,1893. Serial No. 476,817. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD W. MERRILL, of the city of Brooklyn, in the county of Kings and State of New York,haveinvented a new and useful Improvement in Drop-Hamp iers, of which the following is a specifica- This invention relates to the frames of drop hammers. The frame for such ahammer as heretofore commonly constructed has consisted of a cast iron base or anvil-block and two upright standards, each consisting of a single casting, erected on said base for the support of the boxes which contain the bearings for the shafts of the friction rollers by which the hammer is lifted. The cast iron standards have been very liable to breakage.

The object of my invention is to prevent such breakage and to this end the invention consists in the novel construction of the frame hereinafter described and claimed.

Figure 1 in the drawings represents a front elevation of a drop hammer embodying my invention; Fig. 2 an inner side elevation of one of the standards, and Fig. 3 a horizontal sectional View of the standards.

Similar letters of reference designate corresponding parts in all the figures.

A is the base or anvil-block on which are erected the two standards each consisting of a cast iron or cast steel foot piece B, an upright 0 of wrought iron or steel and a head piece D of cast iron or cast steel.

E are the boxes which contain the bearings for the shafts o. a. of the friction rollers b by which the stem or board F of the hammer H is grasped and lifted.

As the parts hereinabove mentioned, except the standards, are or may be of ordinary or known construction itwill be only necessary to further describe particularly the said standards. The uprights or upright portions C of these standards which constitute the guides for the hammer H consist each of a simple web of wrought iron or wrought steel, and in practice I take for their manufacture such flat bar steel as in. y be found in the market and out it in pieces of the proper length and plane one edge of each of two pieces to a V-section as shown at 12*, to constitute the guides for the hammer H, the sides of which are grooved to fit the V-sh'aped edges of the said two pieces. The cast foot pieces B which are bolted to the base or anvil-block A are made broad enough at the bottom to give them proper stability and have in their inner sides vertical grooves or mortises c-ex'tending through their entire height for the reception of the lower parts of the uprights O which are secured in the said foot pieces by rivets d d which pass through the said bases and the uprights. The cast head pieces D which are made broad enough at their tops to receive and support the box castings E, have in their lower parts grooves or mortises e for the reception of the upper end of the uprights which are secured therein by rivets f which pass through the said head pieces and uprights. By the above construction of the standards I am enabled while saving weight of material to obviate the liability to breakage of the standards.

It is obvious that screw-bolts might be substituted for the rivets f as the equivalents thereof but I prefer the rivets because their heads will take up less room than bolt heads and nuts and will not be liable to jar loose.

What I claim as my invention is--' I In a drop hammer, the combination with the base or anvil-block and the boxes which contain the bearings for the shaft of the hammer-lifting rollers, of two mortised or grooved cast metal foot pieces supported on the base or anvil block, two mortised or grooved head pieces for supporting said boxes and two upright webs of flat bar iron or steel fitted to the mortises or grooves of the said foot pieces and head pieces and secured therein by riveting, the said webs constituting the guides for the hammer, all substantially as herein set forth.

EDWARD W. MERRILL.

Witnesses:

FREDK. HAYNES, GEORGE BARRY.