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Text copied from TM9-1985-2 German Explosive Ordnance 1953 :

"Pull percussion igniter (type 2)"

Data:
Length: 2inches, Diameter: 3/8inch.
Color: Grey or black.
Pull or pressure required: 20 pounds.
Material: Brass and steel.



Description:
The body is constructed of brass and houses the striker assembly.
It is internally threaded at the base to accept the percussion cap housing and externally threaded to engage the bomb into which the igniter is fitted.
A 3/16-inch hole is drilled from the base to a point 1/8-inch from the head, forming a housing for the striker assembly.
The igniter body is drilled centrally at the head to give clearance to the striker release plate. The striker assembly consists of a striker, striker spring, and striker release plate. The striker is constructed of 1/32-inch steel plate, and is key shaped, with a 1/8-inch hole drilled at the head to accept the split ring. The stem is slotted to engage the striker.
The brass percussion cap housing is externally threaded to engage the igniter body. It is divided into two compartments, between which is a flash hole.
A percussion cap is housed in the top compartment, and a short delay pellet is housed in the lower compartment, incorporating a delay of either two of four seconds.

Operation:
A sharp pull on the split ring causes the striker release plate to be drawn from the igniter body , carrying with it the striker and compressing the striker spring.
When the release plate is withdrawn fully from the igniter body, it disengages from the striker and the striker is released.
The compressed striker spring then forces the striker to impinge upon the percussion cap.

Employment:
This igniter was designed for use with the "New type Parachute Antipersonnel Bomb" but is suitable for use with mines and boobytraps.