DESCRIPTION. The body of the mine is a circular metal box with a dome-shaped top surface containing 11 pounds of high grade pressed TNT. A "floating" cover is held down by a heavy metal ring attached to the body and is supported in the center by a heavy spring. A compressible rubber ring serves as a cushioned seat for the bottom of the igni-ter. A threaded washer locks in the detonator and an adjusting collar serves to position the igniter. The igniter is screwed into the mine cover until it bears firmly on the rubber washer. (See fig. 230.)

There are two receptacles in the mine body, one in the side and one in the bottom, threaded to receive secondary firing devices. Either pull friction igniter Z.Z. 35 or ZDSCHN-ANZ. 29 with a detonator is used for the secondary firing.

A rubber strip seals the junction between the cover and the body of the mine against the entry of water and dirt.

OPERATION. Pressure of 200 - 400 pounds on the cover depresses the cover and the igniter housing. The igniter housing presses on top of the striker, shearing shear pin which holds striker in the cocked position. Driven by the striker spring, the striker spring sets off the percussion cap, detonator, booster, and main charge.

REMARKS. The operation of the mine is affected by the position of the adjusting collar in the body. If the collar is screwed beyond its correct position, a greater pressure on the mine cover is required to compress the spring sufficiently to cause the igniter to fire. Conversely, if the collar is screwed in short of its correct position, less pressure is re-quired on the mine cover and the mine is relatively more sensitive.

Figure 230 – Tellermine 35 – Antitank