Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1003
Fig. 402 cause shaft M to rock, thus moving the pilot valve by ,||means of valve rod L. Moving the pilot valve will either 1^ … Fig. 403 open or close main valve K, which will allow the water toflow into, or out of the cylinder, depending upon whatdirection lever S is moved. Hydraulic Elevators 975 If the operator fails to return lever S to stop positionwhen the car reaches* the top of the hatchway, the frameN will be…
