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 1013
wise in the same direc-tion. The stops N are hook-shaped; they slide over theside projections on bar E^ Fig. 410^ and lock with it,with the result that when the elevator is started on thereturn trip the movement of the crosshead carries the stopN with it, and the automatic stop-valve H is pulled… … Fig. 411 Hydraulic Elevators 985 crosshead also operates the valve^ the opening of the latteris rapidly increased and the car speed correspondingly ac-celerated. WTien the bar E has carried the stop N as far as thestop T the releasing lever S strikes the latter and the hookon the stop K is raised…
