. The Street railway journal . g. The bell-mouth outlet bush-ings with which each of the conduits are capped, together withthe lock ends beneath the angle-iron frame, serve to hold themrigidly in position. The lighting circuits which leave the boardat the top for distribution in the hood and roof of the car arecarried in flexible conduits, as shown. DETAILS OF COLLECTING SHOE An important detail of the electrical equipment of the cars,which is in fact closely related to the wiring system, is the 428 STREET RAILWAY JOURNAL. [Vol. XXV. No. 9. third-rail collecting shoe equipment. On account of i
. The Street railway journal . g. The bell-mouth outlet bush-ings with which each of the conduits are capped, together withthe lock ends beneath the angle-iron frame, serve to hold themrigidly in position. The lighting circuits which leave the boardat the top for distribution in the hood and roof of the car arecarried in flexible conduits, as shown. DETAILS OF COLLECTING SHOE An important detail of the electrical equipment of the cars,which is in fact closely related to the wiring system, is the 428 STREET RAILWAY JOURNAL. [Vol. XXV. No. 9. third-rail collecting shoe equipment. On account of importantimprovements embodied in the design of collecting shoe asadopted for use in the subway, it is illustrated herewith, bothas applied to the car and in the detail drawing. As is wellknown, the third-rail arrangement in the subway consists ofthe use of a protected third rail, the rail being covered by a2-in. plank 10 ins. wide, supported 2^ ins. above the contactrail throughout. The contact device is accordingly of the so-. THE DOUBLE PIPE AND CONDUIT BENDING MACHINE USEDIN THE EQUIPPING SHOPS OF THE INTERBOROUGH COM-PANY, FOR PRODUCING THE SPECIAL SHAPES REQUIRED called slipper type, as indicated in the drawing. It is pivotedat a distance of 9 ins. from the contact rail center, being heldnormally in its lower position by a spring on the pivot may be noted, the wearing surface of the shoe is carriedfrom the hinged portion by two slender prongs, which arewebbed as indicated. An improvement is embodied in this shoein that these prongs are purposely made somewhat weaker thanthe balance of the casting, so that in case of meeting with anobstruction the breakage will occur at that point, throwing theshoe out of service, instead of breaking the supporting hangerand subjecting the contact-rail system to possible short-circuit. The method of pivoting the shoe is well shown in the crosssection view. The shoe is arranged with limit stop, by whichthe downward movement of the s
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
