. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 597. TROLLEY REPLACER. The ]jj double spiral grooved cone carries a centralgroove A for the wire, and on each side ahelical groove, B, B, which quickly carries thewire to the central groove when the conductor does not require any specialskill in replaci
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 597. TROLLEY REPLACER. The ]jj double spiral grooved cone carries a centralgroove A for the wire, and on each side ahelical groove, B, B, which quickly carries thewire to the central groove when the conductor does not require any specialskill in replacing a displaced wheel, for if thewheel catches the wire in any part it is auto-matically carried to the center groove A. 230 RAILWAY DEVICES AND APPLIANCES, 598. CAR COUPLER. Washburn the side movement of the draw bar, andalso a movement of the head of the couplercontrolled by the side thrust of the helicalsprings for centering the coupler head.
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
