Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1019
kwise 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…
