. The Street railway journal . the lever, from thewear of the shoes, travel further than a given distance thesprocket casing is rotated far enough to allow a pawl to travelmore than the length of a tooth in the ratchet wheel. Whenthe brake is released the springs which draw the lever backwill rotate the sprocket casing into its original position. Thusthe pawl will rotate the ratchet wheel, tightening up a nut onthe rod to the extent of the angular motion of one tooth. Theresult is that when the slack on the brake-shoes is greater thana certain amount it is automatically taken up; and as there
. The Street railway journal . the lever, from thewear of the shoes, travel further than a given distance thesprocket casing is rotated far enough to allow a pawl to travelmore than the length of a tooth in the ratchet wheel. Whenthe brake is released the springs which draw the lever backwill rotate the sprocket casing into its original position. Thusthe pawl will rotate the ratchet wheel, tightening up a nut onthe rod to the extent of the angular motion of one tooth. Theresult is that when the slack on the brake-shoes is greater thana certain amount it is automatically taken up; and as there isa similar arrangement at each end of the car, and as themotion on the nuts on the one brake-rod is transferred to thenuts on the other rod by tlie sprocket chain, the slack is takenup equally on both brake-rods. The adjuster is manufacturedby the Delaware Street Railway Equipment Company, of Wil-mington, Del. Among the railways now using this device are the following:Wilmington City Railway Company and AA^ilmington & New. AUTOMATIC BRAKE-SHOE ADJUSTER Castle Railway Company: Elmira Water, Light & RailroadCompany, Elmira, N. Y.; Harrisburg Traction Company, Har-risburg. Pa.; Johnstown Passenger Railway Company, Johns-town, Pa.; Lehigh Valley Traction Company, Allentown, Pa.;Waverly, Sayre & Athens Traction Company, Waverly, N. Y. THE THOMAS RAIL-BOND riie accom]jany!ng cut shows the Thomas type-H rail-bond(,■11 65-lb. rail. This is an unprotected bond and can be appliedwherever the !)ase of the rail is exposed. It is, therefore,availalile for use with fish-plates or angle bars, for third-railwork, and in other cases where exposed Ijonding is bond is soldered and bolted to tlie rail. I he l)olt thustakes up any strains produced by the moving of the rail. This bond is preferably aj^jjlied after the rails have been])Ut in place and spiked down, so that the bonding may be doneat any time, allowing construction work to proceed withouticgard to it. The application
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
