Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 213
re shown diagrammatically in Fig. 85. Operating Straight Air Brake. The operating valve has notchesplaced upon it which mark the position of the handle for the variouspositions of the valve. This fact enables one to operate the brakewith certainty the first time, but smooth and accurate stops canbe… … ELECTRIC RAILWAYS 89 release position, Fig. 95. When the handle is in the lap position,as indicated by the deep notch, the main ports in the valve are closed,and compressed air cannot enter the brake cylinder from the reser-voir, and any compressed air which may be in the brake cylindercannot…
Electrical engineering
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