Fluid from the pump is delivered to the right end of cylinder 2, moving piston 3 and table 4, attached to the piston, to the left. The rotary pilot valve with member 1 connects delivery pipeline 5 to pipeline 6. Fluid passing through the valve opens check valve 7 and shifts plunger 8 of the time relay to the extreme left position. Upon further travel of the table, trip dog a, mounted on the table, turns valve member 1 to its other position in which the delivery line is connected to pipeline 10 and pipeline 6 to the tank. Spring 11 moves plunger 8 to the right, discharging fluid from chamber d through flow-control valve 12 into pipeline 6, and through the pilot valve to the tank. At the end of the stroke of plunger 8, fluid from the delivery line passes through the pilot valve and pipeline 13 to the left end of valve spool 14, after opening check valve 15. Spool 14 is shifted by the pressure of the fluid to the right. Fluid from the right end of spool 14 is discharged through flow-control valve 17 and the pilot valve to the tank. Then the pump delivers fluid to the left end of cylinder 2, moving piston 3 and table 4 to the right. Upon further motion of the table, valve member 1 is turned again by a trip dog of the table. Fluid from the delivery line passes through the pilot valve and time relay, opening check valve 18, to the right end of valve spool 14, shifting the spool to the left. Fluid from the left end of the spool is discharged through flow-control valve 9 and check valve 16, and further through the time relay and pilot valve to the tank. The required time delay is set by regulating flow-control valve 12.
$4189$CHP,Dr$