DESCRIPTION. This type of igniter is generally used with mines and prepared charges which are actuated by wires in tension. The body of the igniter consists four parts: The main housing, the guide piece, the spacer piece, and the lower piece. The main housing contains the sliding cylinder and the compression spring. The lower piece contains the percussion cap. Housed within the sliding cylinder are the striker spring, the striker, and the two opposing pins which hold the striker place. At the top of the sliding cylinder is a hole, through which a trip wire is securely tied. The collar has two diametrically opposite slotted openings, having a clearance of 1/32 inch for the free movement of the safety pin. The safety pin has a nut at one end. When is a "safe" position the safety pin is in-serted far enough through the hole to permit the shoulder on the safety pin to fit in the recess or groove provided on the upper end of the housing, and the clip is fitted around the collar. When the safety pin the nut, and the clip are in the position described, the igniter cannot be fired, since any pull of a cord arrached to the ring will cause the loose link ring to open and the cord to become detached.

OPERATION. The trip wire on this fuze must be under tension as the fuze is fired by pul-ing on the trip wire or by loosening, breaking or cutting it. Pulling on the trip wire causes the sliding cylinder to be pulled outward against the resistance of the compression spring. This permits the two locking pins to be forced outward into the upper open space and frees the striker. Cutting or breaking the trip wire permits the compression spring to force the sliding cylinder downwards, permitting the locking pins to be forced outwards into the lower open space and freeing the striker. In both cases, the freed striker is dri-ven into the percussion cap by the compressed striker spring. (See fig. 258.)

EMPLOYMENT. This igniter is used extensively with S mines, prepared charges and booby traps.

REMARKS. This igniter proved so dangerous to use that a number were returned to the factory for modification. The modified igniters are stamped Nur Zugzünder (only pull fuze). Interior works are the same but the trip wire slot was cut from the end of the sli-ding cylinder and the igniter was fired by withdrawal of the safety pin to which the trip wire was attached.

Figure 258 – Z.U.Z.Z. 35 Pull and Tension Release Igniter