Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 427
rge tank or sewer immediatelyafter it was used. By this means theweight of the water beneath the pistonwas used to equalize the pressure, butas this water beneath the piston was held there by atmosphericpressure until discharged, it was found that the length of the ver-tical cylinder could not be… … Fig. 9. Vertical HydraulicElevator. 330
Architecture · Building · Carpentry
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