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 425
the Greene cut off on thesteam, and the toggle motion on the exhaust valves, gives 412 Steam Engineering the quickest action at the right time to both. A minimumlap is also obtained with the aid of the gear. It is there-fore very important that the movements of the valve andgear be thoroughly… … Fig. 148 To the plug is attached the head that holds the workingparts of the valve mechanism. The arrangement of the valves beneath the cylinder asin the Wheelock system^, allows short ports, small clearancevolume, and a free discharge for the water of condensationthrough the exhaust. The throttle…
