FIELD: railway transport; permanent way. SUBSTANCE: device has large number of hydraulic switching members which are intercoupled, installed with displacement in longitudinal direction relative to rails and connected to separate reversible hydraulic drive set. Working chambers of hydraulic cylinder-piston sets are intercoupled to provide movement of drive in one direction. Pistons or plungers interact with cutoff valves. EFFECT: provision of high degree of reliability and faultlessness, notwithstanding simple design, with use of small number of different parts. 7 cl, 8 dwg
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