DEVICE FOR CUTTING OUT BALLAST FROM SPACE BETWEEN SLEEPERS OF RAILWAY TRACK Russian patent published in 1998 - IPC

FIELD: railway track maintenance and repair machinery and equipment. SUBSTANCE: device has frame installed on track repair machine which carries working members with blades secured on them, and working members' control system. Working members can be displaced in vertical and horizontal planes by means of hydraulic drive. Device is provided with at least three working members, two of them are located in zones around ends of sleepers, and third working member is located in zone between sleepers. Each working member is provided with at least two blades installed at distance from each other which is less than stroke of their working member in horizontal plane. Total value of strokes of all working members in horizontal plane, and of spacings between their blades is larger than length of sleeper. EFFECT: higher efficiency. 3 dwg