COAL PLOW Russian patent published in 1994 - IPC

FIELD: mining equipment. SUBSTANCE: plow has a frame, bodies, cutting heads, tool-holders, a tie for connecting the cutting heads and fixing pins between each other. The bodies are rigidly connected to the frame. The cutting heads are pivotally connected to a corresponding body. Each tool-holder is made with a slot opened on the side of the loading surface of the plow. The fixing pin is positioned in a slot of a corresponding tool-holder and is mounted for engagement by its ends in the working position with a corresponding body and the slot bottom in a corresponding tool-holder respectively. EFFECT: improved structure. 4 dwg