. The Street railway journal . ropeand grip. Fig. 2 is an isomet-rioal view. (See nextpage.) Figs. 3, 4 and 5 showthe grip of the ClayStreet, and Presidio &Feriies roads. A ver-tical slide, working ina standard is movedup and down by ascrew and hand wheel,and operated by thesmall screw goingdown through thelarge one. The screwoperates wedges whichopen and close twohorizontal grippingjaws with soft castiron lining-pieces. Oneach side of the jaws,and attached to them,are two small sheaves,held by rubber cush-ions sufficiently in ad-vance of the jaws tokeep the rope there-from, and yet to leadthe
. The Street railway journal . ropeand grip. Fig. 2 is an isomet-rioal view. (See nextpage.) Figs. 3, 4 and 5 showthe grip of the ClayStreet, and Presidio &Feriies roads. A ver-tical slide, working ina standard is movedup and down by ascrew and hand wheel,and operated by thesmall screw goingdown through thelarge one. The screwoperates wedges whichopen and close twohorizontal grippingjaws with soft castiron lining-pieces. Oneach side of the jaws,and attached to them,are two small sheaves,held by rubber cush-ions sufficiently in ad-vance of the jaws tokeep the rope there-from, and yet to leadthe latter fairly be-tween the jaws, andlet them run betweenthe jaws withouttouching them, whenthey are opened order to grip therope the slide is drawnup by the small screw,and the wedge at thebottom not only closes ♦National Cable Railway-Co., 2 Wall Street. NewYork City. the jaws but forces the guide sheaveson to the rubber springs. The bracketcarrying the standard of the slide isattached to a dummy car. The steel. shank of the standard is ^ in. thick and 1\ in. wide; the slot in^the tube being % in. wide. The gripjised onTthe South Street Line, San Francisco, is as shown in Fig. 6. The motion of the grip jaws being vertical; it takes and releases the rope sideways, instead of beneath as on Clay Street, and the jaws are operated by levers. The California StreetRailway has a levergrip taking the ropesideways. The Grand StreetRailway has a levergrip, vertical in itsmotion, and taking therope from above ; notso good an arrange-ment, as the jaws andrope are under the dotand catch the dirttherefrom. The Presidio & Fer-ries Railway has a gripof the Clay Street typebut heavier. On this road there isa curve at the intersec-tion of two streets,2,600 feet from thestart, and the rope isdeflected by two 8-foothorizontal pulleys. Thesireets descend fromboth directions towardsthe curve, and about30 feet before reachingthe latter the rope isreleased, and picked upagain after the curve
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
