DESCRIPTION. The cylindrical shaped body is bored to receive the striker, striker spring, and detonator cap housing. The striker is domeshaped at its upper end is drilled trans-versely to accept the shear pin. At the lower end of the striker, a collar forms the seat for the striker spring. A longitudinal inclined slot is machined in the lower end of the stri-ker to prevent air cushioning. A retaining cap, screwed to the detonator cap housing, holds the detonator in a central position. (See fig. 270.)

OPERATION. Sufficient pressure on the striker head causes the shear pin to break, re-leasing the striker. The freed striker is driven into the detonator cap by the compressed striker spring.

EMPLOYMENT. This igniter is used with the T.Mi. 35 steel, T.Mi. 42 and 43 mushroom. It does not have standard German threading.

Figure 270 – T.Mi.Z. 42 Pressure Igniter