Over-all length

Over-all width

Over-all height

Type of filling

Weight of filling

Total weight

The mine consists of a wooden box which houses the explosive charge, a false lid, two igniters, and a separate wooden cover. The explosive charge smells strongly of almonds; it consists of 24 cartridges, weighing 100 grams; is 5 in. long and 1½ in. in diameter.

In the false lid are two holes, each 1 in. in diameter, to receive the igniters. Igniters have an aluminum alloy body which tapers slightly and has a mushroom-shaped head. The head is recessed to accommodate a steel washer, through which passes the shank of the striker. The striker spring is maintained compressed between this washer and the striker head by means of a copper shear-pin.

Below the striker is the detonator, and the booster is a push-fit into the base of the ig-niter. On the underside of the mine cover are two metal plates, located above the igni-ters and intended to bear upon the striker. The mine cover is held in position by two wire retaining straps, which can rotate about the pins, securing them to the mine body. All the parts are nailed together. The mine is creosoted inside and out.

Pressure from 185 to 380 lb. on the cover, shears the copper shear pin, and the springs drive the strikers onto the detonators.

Figure 240
Wooden Box Mine (Anti-Tank)