Percussion Igniter Switch Mk III (Obsolescent)

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Description: The igniter consists of a cylindrical housing tube containing a spring-loaded striker. One end of the striker protrudes through a hole in the cap on the top of the housing tube, and is held cocked by a safety pin. The lower end of the housing tube is externally threaded to receive a collar, which holds the fuse adapter in place.

Functioning: A pull on the trip wire remove the safety pin from the striker. The relea-sed striker will then be forced by its spring against the percussion cap in the fuse adap-ter, firing the fuse or detonator inserted in the adapter.

Use: This device may be used as a manually operated fuse lighter for non-electric fir-ing of demolition charges. Operated by a trip wire, it may also be used to initiate improvi-sed booby traps and mines. The device will ignite safety fuse directly, or fire detonators.

Installing: Fix the device in position, and connect the device to the explosive charge. Lead a trip wire from its anchor and attach it to the safety pin.

Disarming: Examine each end of the trip wire, and then cut the trip wire. Make cer-tain that the safety pin is securely in place, and then cut or detach the length of fuse or detonating cord leading to the charge or mine.

Remarks: This device may be re-used by recocking and replacing the percussion cap.