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 1006
Fig. 404the whittier pulling machine Hydraulic Elevators ^11 the traveling sheaves D^ and shoes E on the crossheadslide within the side guides. The weight P suspended from the chain that travelsbetween two small guide sheaves located just below thevalve casings is for the purpose of bringing the… … ■ Fig. 405 ^top valve to central position as soon as the piston movesaway from either end of the cylinder. The shackle boltsfor the ropes are shown at Q. The main and the pilot valves of the Whittier machineare shown in detail in Figs. 405 and 406^ the first being a < B
