Abstract: A land mine adapted to be deployed by gravity and comprising: a housing hng a hollow cylindrical side wall and two end walls, on either of which the mine may come to rest. A main explosive charge in the housing, a clearing charge located between the main charge and each end wall; explosive firing means; a mechanical gravity-controlled switch including a body formed with a cavity having two spaced outlet passages and an intermediate inlet passage, and a weight movable in the cavity; a firing train connecting each of the outlet passages to one of the clearing charges; and a firing train connecting the firing means to the inlet passage; the weight being movable by gravity when the mine comes to rest to a position wherein the firing train connected to the upper clearing charge is exposed to, and the firing train connected to the lower clearing charge is isolated from, the firing means.

Abstract: A double-ended mine, adapted to be carried by a projectile, deployed by gity, and come to rest on either end, comprises: a housing having two end walls and a connecting side wall; an annular main high explosive charge, lined on each end with a concave missile plate, in the housing; a clearing charge located between the main charge and each end wall; a fuze body mounted in the annular charge; an arming slider slidable in an axial channel in the body between safe and armed positions; a slider spring; two spin-released bolts in the body for locking the slider in safe position prior to projectile launch; a spring-biased pin for preventing rotation of the slider and for locking the slider in armed position; an electrical fast-fire detonator mounted in a first radial channel in the body; a first explosive lead mounted in a transverse passage in the slider in alignment with the detonator in armed position; a mechanical gravity-controlled switch and two combustible cords connecting the first explosive lead with the c