US177066A - Improvement in machines for making cartridge-shells - Google Patents

Description

A. C HOBBS.

MACHINES F03 MAKING CARTRIDGE SHELLS. No.177.066,

Patented May 9,1876.

I 17m r NFETEHS, PHOTO-UTHOGRAFHER, WASNNGTON. D. C-

UNITED STATES PATENT OFFICE.

ALFRED C. HOBBS, OF BRIDGEPORT, CONNECTICUT.

I IMPROVEMENT IN MACHINES FOR MAKING CARTRIDGE-SHELLS.

Specification forming part of Letters Patent No. 177,066, dated May 9,1876; application filed February 8, 1876.

To all whom it may concern Be it known that I, ALFRED CHARLES HOBBS, of Bridgeport, county'ot Fair-field, and State of Connecticut, have invented a machine for removing the burrs or pieces left in punching holes in cartridge-shells to admit the passage of the flame of the fulminate toignitethe powder in the body of the shell, of which the following is a specification:

My invention relates to a machine for pre- D. Between these two sliding heads D, and" secured to the arm 0, is a stop, E, against which the set-screws F bear in adjusting the sliding heads to their proper positions to admit the heads of different-sized shells between the turning mechanism. To the lower sides of these two yielding heads D is fitted one form of mechanism for turning or revolving a shell to remove the burrs therefrom, and consists of a grooved frictionwheel, G, attached to and revolving upon one head, and a grooved stationary piece, I, secured to the other head, by the joint-action of which a shell is turned or revolved upon its mandrel by the edge of the head fitting in grooves a of the wheel G and plate I in its movement or passage between them.

A spring, J, connecting the sliding heads D, is provided, by which a yielding pressure is brought upon the rim of each shell with sufficient force to cause it to revolve in its pas remove the burrs therefrom, a rotating dial, K, driven by a belt, or in any other convenient manner, is mounted upon the bed-plate A, and projectingfrom the upper surface of which, and near its periphery, is a series of mandrels,

L, for supporting the shells with their heads upward, and uponwhich the shells are placed to be carried through between the turning mechanism by the rotating of the dial K.

The upper ends of these mandrels L are notched or grooved, so that the burrs to be removed from the shell may project downward into them, and as the shell is revolved the edges 13 rub or out off theburrs 0, which escape from the shell at the lower ends of the notches a. (See Figure 2.)

The grooves n in the wheel G and stationary plate I serve two purposesonc to facilitate the revolving of the shell by pressure upon the edge of the head in passing between them, and the other to prevent the shell from rising, and thus perhaps pass over the burrs without removing them.

It isevident that many devices might be sub- Q stituted for theone herein described for revolv ing a shell to remove the burrs therefrom, and I desire to be understood as not confining myself to the exact construction herein set forth, but

to embrace the equivalents thereof, for the purpose specified.

Having thus any described my invention, what I claim therein as new, and desire to secure by Letters Patent, is-

The combinationof one or, more standing mandrels, upon and aroundwhich the shells are placed,'and mechanism to cause the shells to revolve on said mandrels, the same being a grooved but stationary plate, and means for moving the shells along and in contact with said plate, substantially in the manner

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