. Il giornale ferroviario di strada è inoltre molto veloce e facilmente regolabile sui fili del trolley. Le staffe sono distanziate ogni 10 piedi. Le aste di deformazione stazionarie sono di legno trattato della macchina elettrica & di Mfg. Di West-inghouse fanno e sono ferro piegato. Gli isolatori a stelo sono cementati sulle parti superiori del tubo %-in., attraverso cui passa il golfare ^s-in. Per mezzo del quale sono attaccati ai ferri piegati.le deformazioni costanti sono utilizzate solo su curve e torti enon sono state trovate necessarie sulla pista tangente. I fili di collegamento sono di No. 9 Extra BB, telegrafano galvanizzato, perché è stato pensato meglio no
1778 x 1406 px | 30,1 x 23,8 cm | 11,9 x 9,4 inches | 150dpi
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. The Street railway journal . is also very quickly and easily adjust-able on trolley wires. The hangers are spaced every 10 ft. The steady strain rods are of treated wood of the West-inghouse Electric & Mfg. Companys make, and they are bent iron. The spool type insulators are cemented on topieces of %-in. pipe, through which passes the ^s-in. eye-bolt by means of which they are attached to the bent irons.Steady strains are used only on curves and turnouts andwere not found necessary on tangent track. The tie wires are of No. 9 Extra BB, galvanized telegraphwire, because it was thought best not to make too rigid anattachment between the messenger wire and the insulator;so that if a bracket became detached from the pole for anyreason, its weight and the shock of detachment would tearthe wire clear from the messenger and allow the bracket tofall entirely away from the wire and reduce the chance ofsteam railroad trains colliding with it. An accident to theelectrical equipment of a railway operating both steam and. OVERHEAD CONSTRUCTION AT C ARISSA STREET BRIDGE, ROCHESTER, SHOWING TROLLEY SECTION INSULATOR, WARNING AND BLOCK SIGNAL TOWER BRIDGE mounted at one side of the bracket instead of directly under-neath, in order to give sufficient clearance for the panta-graph trolley on curves, where the super-elevation resultsin the tilting of the shoe from the horizontal. Each steadystrain rod is hinged to a spool type Thomas porcelain straininsulator, which is clamped to one side of the bracket insuch a manner that the hinged end of the rod is almost atthe elevation of the top of the tee bracket. The method ofattaching the steady strain insulators to the bracket is suchthat they can readily be shifted along the bracket to followup any change in alignment of the trolley wire that may berequired by curvature or for any other reason. The clampsholding the steady strain insulators are of 3 in. x ^ in. electric trains, may shut down the electric service, but willnot automatically
