Installation of a planing to the operations collieries at the bottom, with a cutting device in the transition zone of the size of the gallery, more particularly to a roof-rack layer

摘要

A.installation of a planing to the operations collieries at the bottom with a cutting device in the transition zone of the size of 1 to the fixture 2, more particularly to a roof-rack in the layer. / p & & p & b.le cutting device comprises a pivoting arm 6 provided with a cutting cylinder 7, which scans the transition zone of the size of 1 to the fixture 2, this cutting cylinder 7 being articulated at one of the stiffener of the pivoting arm 6 on a shaft of the vertical support 8. The other end of the pivoting arm 6 is articulee on the support shaft 3 of the return rollers 4, and on the two supporting shafts 3, 8, are arranged at the chain wheels 9, 10 for driving the endless chain 11, on the one hand to the pivoting arm 6 and the other hand, to the cylinder (7). / p & & p & c.cet arrangement makes it possible to be carried out on a begins in the transition zone between the edge of a size and the rack to receive the coal is deposit.