Railway and Locomotive Engineering . LOCOMOTUE EQUIPMENT FOR WIRELESS CONTROL. part which is on the track, and second,that part which is on the engine. The essential features of the roadportion are the track circuit and thegenerator of the wave. The mannerof controlling the wave by the trackcircuit relays will be evident from aninspection of the diagram. The gen-erators, as a whole, include the trans-former T, the condenser C, and the dis-charge points PP, commonly known as wire, W, and pick-up wire, U, extendingalong the track in the relative positionsshown. All the track blocks are pro-vided
Railway and Locomotive Engineering . LOCOMOTUE EQUIPMENT FOR WIRELESS CONTROL. part which is on the track, and second,that part which is on the engine. The essential features of the roadportion are the track circuit and thegenerator of the wave. The mannerof controlling the wave by the trackcircuit relays will be evident from aninspection of the diagram. The gen-erators, as a whole, include the trans-former T, the condenser C, and the dis-charge points PP, commonly known as wire, W, and pick-up wire, U, extendingalong the track in the relative positionsshown. All the track blocks are pro-vided with the ordinary form of vanetype relays and A. C. track circuits. Itwill be seen that the wires W and Uare charged with the wave-producingcurrent only when the block in ad-vance is clear. This is in accordancewith the closed circuit principle uponwhich the whole system is IlC. 1. WIRING DI.\GR.\M SHOWING POSITION OF , ETC. the gap between the train pipe and therail. The scientific basis is the discoveryby Hertz that electric oscillation pro-duced in a circuit which possesses ca-pacity and inductance, creates in thesurrounding ether a disturbance whichis styled an electric wave. This wavecauses the metallic filing tube, com-monly called a coherer, to become aconductor of current when it is oscillators. One of these generatorsis placed at the end of each block, anda wave wire is extended for a blocklength in the rear. This wave wire isNo. 12 aluminum, and is run in atrunking in the center of the track,midway between the rails. The genera-tor is controlled by the track circuitsof the block in advance. As long asthe flow of current through the trackcircuits is not broken or short circuited. The wave wire \V is insulated from thetrack, and its preferred position withreference to the track is along the mid-dle of the ties. On single track thewave
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
