Figure 1-23. Pressure-type demolition firing device M1A1-cross section.
the body, contains the primer. The outer end of
the coupling base is threaded to fit activators and
firing device wells (cap wells) and has a nipple. A
blasting cap may be assembled to the nipple.
(b) The outer end of the firing pin is slot-
ted longitudinally to form four jaws, and grooved
internally to receive a knob on the inner end of
the release pin. The slotted end of the firing pin
passes through a cylindrical opening in the body.
It is held in this position by the knob of the re-
device M5-cross section.
lease pin when the release pin is in its normal
axial position and the safety pin in place. The
when in position, prevents forward or backward
safety pin passes through an elongated opening in
movement of the release pin (beyond the slight
the head and a hole in the release pin. A small
movement permitted by the elongated slot in the
cotter pin, which passes through a hole in the end
head), thus preventing release of the firing pin,
of the safety pin, prevents accidental movement
The winch consists of a bracket, spool with a
of the safety pin during shipment. The safety pin