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. . ELECTRIC RAILWAYS 91 opening is provided with a tight-fitting door which excludes all dirt,dust, and moisture. In the ends of the frame are fitted heads 1and 2, which provide bearings for the ends of the armature. Each. Fig. 86. Diagram of Parts of Motor Driven from Pressure bearing is pr


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. . ELECTRIC RAILWAYS 91 opening is provided with a tight-fitting door which excludes all dirt,dust, and moisture. In the ends of the frame are fitted heads 1and 2, which provide bearings for the ends of the armature. Each. Fig. 86. Diagram of Parts of Motor Driven from Pressure bearing is provided with two oil-rings which secure proper lubricationof the shaft. Oil holes are provided for filling the oil^ wells, and thelocation is such that there is no danger of flooding the interior of themotor with oil. A passageway at the pinion end conducts any excess 187 92 ELECTRIC RAILWAYS of gear-lubricating oil to the bottom of the gear case, thus assisting inpreventing any flooding of the motor. Two of the poles of the motorare a part of the frame 3, and two are made up of soft laminated iron4 bolted to the frame. The armature 5 is made up of soft-steelpunchings which have accurately spaced slots in which are imbeddedcoils of uniform size. The brush-holders 6 are made of brass and are bolted to a cast-iron yoke wdthproper insulation. The brushesare carbon, and are held againstthe armature by coiled action of the compressorin compressing air is as follows:Air is drawn through the suctionscreen 7, lift


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Keywords: ., bookauthoramericantechnicalsoci, bookcentury1900, bookdecade1910