113. Wooden Antilifting Device (Entlastungsmine)

a. Description. The wooden antilifting device (fig. 140) consists of a wooden case, about 6 1/4 inches long, 4 3/4 inches wide, and 2 1/4 inches high. The wooden case contains a 0.5-pound main charge and a pull fuze 42 (par. 42). A wooden block is located at the end opposite the main charge and has a hole drilled part of the way through the center of its upper side. A strong actuating spring fits in this hole and projects above the top edge of the wooden case. The hinged lid has a small arming hole located directly above the striker-retaining pin of the pull fuze 42, and a spring recess directly over the actuat-ing spring. The hinged lid is held shut with an inprovised latch, compressing the actuating spring. An actuating wire attached to the striker- retaining pin of the pull fuze 42 is threaded through the arming hole in the lid and tied to a nail lying across the arming hole.

b. Employment. This antilifting device is used to activate mines and may be used as a booby trap.

c. Funtioning. When the weight is lifted from the wooden case, the compressed actuat-ing spring forces the hinged lid up. At the same time the actuating wire pulls the striker-retaining pin out of the striker shaft, releasing the spring-loaded striker against the per-cussion cap and firing the antilifting device.

d. Installing and Arming.

(1)

Screw a pull fuze 42, with detonator into the main charge.

(2)

Tie an actuating wire to the striker-retaining pin of the pull fuze 42 and thread it through the arming hole.

(3)

Close the hinged lid and fasten it with the improvised latch.

(4)

Tie the actuating wire to a nail lying across the arming hole. Be careful not to pull on the actuating wire so as to pull out the striker-retaining pin.

(5)

Place the antilifting device in a hole and place a mine or charge on top of it.

Caution: Be certain the mine or charge is heavy enough to hold the hinged lid down against the force of the compressed actuating spring.

(6)

Carefully disengage the improvised latch on the hinged lid.

e. Neutralizing.

(1)

Secure the hinged lid tightly with the improvised latch.

(2)

From a distance of 50 yards, pull the mine form the hole with a rope or wire.

(3)

Cut or untie the actuating wire attached to the striker-retaining pin of the pull fuze 42.

(4)

Carefully raise the hinged lid.

(5)

Unscrew the fuze and remove the detonator from it.

Figure 140. Wooden antilifting device.