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 226
e. Just belowthe gauge is a socket into whichfits the operating handle 4j w^hichis removable. In swinging fromthe release position to the emer-gency position, the handle turnsthrough about 130 degrees. The handle can be inserted and with-drawn only when the valve is in lap position. When the… … <^linder Be^crvoir* Fig. 94. Section of Air Operating Valve 195 100 ELECTRIC RAILWAYS a bolt G actuated bj a spring. As the handle is turned, the headof the bolt 6 passes over notches which serve to indicate when thevalve is in the proper position. Connected to the lower side of thesocket is the…
Electrical engineering
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