Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 168
593. DOUBLE BEAT DISC VALVK—Thecentral seat is borne by the cross bar in whichthe guide pin of the valve is set HYDRAULIC POWER AND DEVICES. 159 … 594. HYDRAULIC VALVE, used onelevators. Cylindrical in form, the valvesmove across the ports by a rock shaft andarms. A, pressure chamber. B, C, to elevatorcylinder.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
