Description
This fuze is a delay, mechanical-chemical or electrical, handset type with a spring-loaded striker with chemical-action release. It is a cylindrical metal tube about 6 inches in height and 1 1/8 inches in diameter. A threaded faucet type safety screw is located in the side of the fuze. The spring-loaded striker assembly is located in the upper half of the fuze. The striker bolt is retained by a wire which is passed through the hollow striker shaft and attached to a metal disk located at the top of the fuze. This disk has a seep hole through it, leading into the hollow striker, so that sulfuric acid may be poured into the hollow striker. A circuit closer, or an ampoule of acid with a nonelectric detonator, forms the base of the fuze. The circuit closer (electrical base) consists of threaded ebonite and metal bases with a spring-loaded contact rod and two screw contacts for connecting the electric wires. The chemical base consists of a metal nonelectric detonator holder with a small ampoule of acid fixed to a hollow metal shoulder above a chemical powder.
This fuze is used for delayed detonation of mines and charges.
Functioning
Chemical action of the sulfuric acid poured into the hollow striker shaft corrodes the striker-retaining wire and releases the spring-loaded striker against the electrical base or the chemical base of the fuze.
(1) Electrical base. When the striker hits the spring-loaded contact rod, the rod is pushed down until it strikes the metal screw contact in the metal base, completing the circuit.
(2) Chemical base. When the striker hits the glass ampoule, the ampoule breaks and the acid mixed with the chemical power creates a flash which ignites the detonator.
Hazardous Components
No information about hazardous components.
Physical Data
No additional physical data available.
See Also
Nothing else to see.
Source(s)
