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. . ounted inan iron frame which in turn issupported on an insulatingblock of wood. At certain points it is nec-essary for these locomotivesto draw their current fromoverhead conductors. Forthis purpose a pair of pan-tograph contact devicesis mounted on the collecting device con-sist
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. . ounted inan iron frame which in turn issupported on an insulatingblock of wood. At certain points it is nec-essary for these locomotivesto draw their current fromoverhead conductors. Forthis purpose a pair of pan-tograph contact devicesis mounted on the collecting device con-sists of four links, pinnedtogether. A set of springspulls the shoe upward and it is retracted by an air piston operat-ing in a cylinder. This piston is controlled from the engineers Pennsylvania Locomotive. A radically different type oflocomotive from those previously described is that in use on theNew York Terminal of the Pennsylvania Railroad. This locomotivewas designed for high speed and large tractive effort. Its maximumcapacity is 4,000 h. p. and its maximum tractive effort is 60,000pounds or more. The complete locomotive, comprising two units,weighs nearly 165 tons. The locomotive consists of two articulated units, each of whichhas one 600-volt, direct-current motor. The motors are mounted. Fig. 248. End Section of New York Central Motor 358 ELECTRIC RAILWAYS 261 on the tops of steel under-framesand they are connected to thedriving wheels through side construction permits theuse of a motor having a longeraxle than would be possible werethe motor mounted directly onthe driving axle. The motor axleoverhangs the driving each end of each motor axleis a counterweighted this crank a connectingrod conveys the torque to a jackshaft upon which, at each end,is another counterweightedcrank. From the jack-shaft cranka second connecting rod transmitsthe force to the driving wheelswhich are connected by a thirdconnecting rod. Figs. 249, 250, and 251
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Keywords: ., bookauthoramericantechnicalsoci, bookcentury1900, bookdecade1910
