Improvements in and relating to submarine mines, depth charges and other explosive bodies for submarine use

摘要

295,586. Skipwith, H. L. d'E., and Taylor, H. T. Jan. 30, 1917. Piston-packing substitutes.-In a submarine mine in which a primer 2 is moved in a tubular chamber 3 towards a detonator 1 by hydrostatic pressure, water is excluded by the rolling rubber ring 4.