. Electric railway gazette . Rail-way Company determined on a system of under-ground feeders. The Edison system of under-ground tubing, so well and favorably known in thefield of electric illumination, was selected, andproved entirely successful. This led the GeneralElectric Company to develop a full line of fittings,joints, boxes, pole tubes, etc , to meet demand forunderground railway feeders, which has alreadycommenced and is increasing. The advantages of self to any ex[iansion, contraction or movement ofthe tubes. The junctions and branches are effected bymeans of boxes and flexible coupli
. Electric railway gazette . Rail-way Company determined on a system of under-ground feeders. The Edison system of under-ground tubing, so well and favorably known in thefield of electric illumination, was selected, andproved entirely successful. This led the GeneralElectric Company to develop a full line of fittings,joints, boxes, pole tubes, etc , to meet demand forunderground railway feeders, which has alreadycommenced and is increasing. The advantages of self to any ex[iansion, contraction or movement ofthe tubes. The junctions and branches are effected bymeans of boxes and flexible couplings, the boxesbeing filled with the compound after connection ismade, and sealed. A few of the especially valuable features of thissystem are the following: It has no ducts to fillwith gas and blow up manholes; it may be tappedat any point without the necessity of a manhole;it does not allow of return circuits, and avoids toa great extent electrolytic dangers; tubes take uplittle or no room in the street; the system is dur-. PART IT. (Concluded.) A car on a grade, with the electric brake ap-plied, will roll down gently and gradually attaina uniform speed, which will be maintained all theway down. The work done by gravity in pullingthe car down the grade reappears in the form ofheat developed in the motors by the current theygenerate in themselves, in addition to the work re-quired to overcorce the rail and journal friction ofthe car. With certain systems of wiring, the rhe-ostat can be thrown wholly or in part into serieswith the motors, thus permitting of more gradualapplication if desired. This method of braking is evidently an inherentquality of the ordinary double motor equipment,as usually installed, and is entirely independent ofI he common friction brake in any of its forms. Asingle motor equipment can also be used in thesame way, if proper arrangements be made forchort circuiting the motor, and giving it a chanceto generate a current of its own, and so performwork. This
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
