US1295569A - Trench-bomb. - Google Patents

Description

T. E. MURRAY, JR. TRENCH BOM B.

APPLICATION FILED APR-8. I9I8.

1,295,569. I Patented Feb. 25, 1919.

THOMAS E. MURRAY, JR., OF BROOKLYN, NEW YORK.

TRENGH-BOMB.

Specification of Letters Patent.

Patented Feb. 25, 1919.

Application filed April 8, 1918. Serial No. 227,226. I

T 0 all whom it may concern 'Be it known that I, THOMAS E. MURRAY, J r., a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Improvement in Trench- Bombs, of which the. following is a specification.

The invention is a trench bomb, which may be manufactured at a less cost than trench bombs otherwise produced, and which is of great strength because it is everywhere integral.

In the accompanying drawings- Figure 1 is a perspective view, showing the completed bomb. Fig. 2 is a longitudinal section of the shaping dies, with one of the bomb sections in place therein. Fig. 3 is a longitudinal section of the Welding electrodes, showing both sections of the bomb in welding position in said electrodes.

Similar letters of reference indicate like parts.

The shell of the bomb is made of sheet metal, and comprises integrally a tubular body portion A, having circumferential ribs 13 at its end portions, and heads C, D, the head C having a tubular projection E, and the head D having a tubular projection F, with perforations'in its wall. The tube E is designed to receive the usual fuse, the body portion A contains the blowing charge, the ribs B fit in the bore of the trench mortar, and the projection F contains the impelling charge. Preferably, said charge is placed in erforated cup H, which is inserted in the tu e F, as shown in Fig. 3, the open end of said cup being flanged over to cover the extremity of sald pro ectien.

The shell is made in two longitudinally divided sections 1, J, exactly alike, said sections being individually formed by pressing the metal plate between dies K, L, as shown in Fig. 2. 'Two of said sections are then seated in recesses in electrodes M, N with their edges in contact, and at said edges are electrically welded together.

The cup H may also be made in two 1ongitudinal sections, and inserted in the projection F before the shell sections I, J are welded, so that the sections of the cup are united simultaneously with the uniting of the sections of the shell.

I claim:

1. As a new article of manufacture and sale, a trench bomb formed of two similar longitudinal half sections struck up from sheet metal and electrically welded at their edges, each section inte rally consisting of a tubular body portion or receiving the exploding charge, and at opposite ends of said body portion, respectively, tubes of less diameter for receiving the impelling charge and the fuse, the said body portion having near each end acircumferential rib.

2. The article of manufacture and sale, as set forth in claim 1, further including a tubular cup outwardly flanged at its end. and entering said impelling charge-receiving tube, the said cup and tube having perforations in their walls.

In testimony whereof I have aflixed my signature in presence of two witnesses.

THOMAS E. MURRAY,

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