Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1007
-tight, as has already been explained (see Fig.396), and its throttling action begins gradually. Should the car be stopped too suddenly on the up-trip,the water in the lower end of cylinder E will be forcedthrough valve d at the bottom of pipe G, and the mo-mentum of the moving parts will be… … Fig. 400 Hydraulic Elevators 973 draulic elevator, with running rope or standing rope con-trol. Other methods of control besides those already de-scribed are in use, mainly in private dwellings and otherplaces where an operator is not employed. These consistof magnetic controllers for operating the…
