Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 428
Fig. 9. Vertical HydraulicElevator. 330 … MOTOR DIRECT-CONNECTED TO ELEVATOR Holtzer-Cabot Electric Company. ELEVATORS 17- But with all these machines, both horizontal and vertical,where the pressure was comparatively low, a great loss of powerwas caused by the friction of the piston in the cylinder, and theflow of the water through the…
Architecture · Building · Carpentry
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