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 1025
ending, the water enters through .port, C, andpasses out through D, then on the descending trip thewater will enter through D and pass out through C. In,either case, the water will have to pass through the open-ings, E, in the valve piston, this passage causing a cer-tain amount of loss in pressure… … Fig. 417 passing through the piston holes, E, is 20 pounds; then,if the car is running up, and the pressure of the waterwhen it reaches one side of B is 800 pounds, it will be, on Hydraulic Elevators 997 the other side^ 780 pounds. If the car is running downand the water is discharging into the…
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