FIELD: automation of control of hydraulically powered support. SUBSTANCE: device has rams communicated with hydraulic system and flexible member. The latter is secured with its ends and connected through blocks for control of its position with fixing members attached to advancing units. Fixing members are made in form of grips with clamps. Blocks for control of flexible member position are made in form of counters of unit complete advances and incomplete advances and connected with flexible member of flexible connection in form of rope. EFFECT: higher efficiency. 2 cl, 1 dwg
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