. The street railway review . eave which is placed inthe counterweight is provided with a cast steel stud to runupon. This stud is hollow and is filled with oil, which isalso fed bv a woolen wick, thus insuring continuous lubn-cation. All bearing surfaces are made large to insure con-tinuous wear. The weight per inch of bearing surface is inno case more than 200 lbs. 288 (^IJM-^b^^^icW* The gripping device is entirely automatic in operationand is of the same design as those which have been usedin Providence since October. 1895, and have worked wittientire satisfaction. The device is shown in F
. The street railway review . eave which is placed inthe counterweight is provided with a cast steel stud to runupon. This stud is hollow and is filled with oil, which isalso fed bv a woolen wick, thus insuring continuous lubn-cation. All bearing surfaces are made large to insure con-tinuous wear. The weight per inch of bearing surface is inno case more than 200 lbs. 288 (^IJM-^b^^^icW* The gripping device is entirely automatic in operationand is of the same design as those which have been usedin Providence since October. 1895, and have worked wittientire satisfaction. The device is shown in Fig. 7. Theportion fastened to the cable is a flowed steel casting, corn-prising a slotted shoe carried above the slot rails and a blade18 in. long, which projects 8/^ in. into the conduit and ispermanently clamped to the cable, by means of a plate andnine j4-in- set screws. The shoe is 31 in. long; in the centeris a slot bored out to the section shown at A, Fig. 7; at the POSITIONS FOR ENGINEERS IN THE NAVY. CuiHf f^lltiflirt. FIG. 6—COUNTERWEIGHT. ends the shoe is flared to guide the grip blade into the slot,and at the sides is provided with lugs to which are pivotedthe releasing levers. The releasing levers are kept in theirnormal positions by brass springs, and are tripped by strik-ing pins which are placed at the ends of the incline. Thegrip blade is f)]/! in. from the center of the bearings in the i^^ 1 J- >3i^
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
