COAL PLOW Russian patent published in 1994 - IPC

FIELD: coal plows. SUBSTANCE: coal plow has frame, two holders, two cutter turrets, vertical guide, cutting head and mechanism for moving cutting head over seam thickness. Each cutter turret is formed by connected to one another spacers with cutter holders. Vertical guide is rigidly connected with spacers. Cutting head is installed for motion over vertical guide. Joint of vertical guide with cutting head is made in form of T-shaped protrusion on vertical guide and T-shaped recess on cutting head. Mechanism for moving cutting head is made in form of two tubular guides, rollers and pushers. Each pusher is installed for interaction with roller and stopping projection of respective cutter holder. EFFECT: higher efficiency. 5 dwg