Mounted on any tank, these were heavy rollers carried on arms infront of the tank and used to detonate landmines as it rolled over them.
A standard agricultural type plough mounted in front of the tank with five 'teeth' protruding from the leading edge. Eventually developing into multiple teethed ploughs with no solid blade and girder type constructions.
Anti-Mine Explosive Devices Snake mounted on a Churchill Tank *
The Snake projector was a long cylinder of explosive towed by a tank to the minefield. The tank would then move to the rear of the snake and push it into the minefield, the tank itself stopping at the edge. The Snake, when detonated by remote control, could clear a lane suitable for infantry use about 2 ft wide in a minefield. It could also be used to blow up barbed wire.
A hydraulically driven pair of arms mounting a rotating cylinder with chains welded to it. As the chains revolved on engine power and the tank moved forward the slapping action of the chain detonated any mine they hit.