. 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. nced to tip backward. A dogcatch on the drivers footboard islet go for self-tipping of the load. 539. DIFFERENTIAL SPEED GEAR for bicycles. Eite & Toddtype. A is the crank-axle gear wheel, C the chain wheel, working through supplementary bracket. Onthis bracket is a s
. 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. nced to tip backward. A dogcatch on the drivers footboard islet go for self-tipping of the load. 539. DIFFERENTIAL SPEED GEAR for bicycles. Eite & Toddtype. A is the crank-axle gear wheel, C the chain wheel, working through supplementary bracket. Onthis bracket is a sleeve, B, whichcarries free running cogs, Bi and B2,both running on ball bearings. Thechain-wheel axle carries the fixedpinions Ci and C2, of different diame-ter, on one shaft, which are always ingear with both of the pinions, B i andB2. By the action of the lever D, Biand Ci, or B2 and C2 are thrown intogear with A, thus giving a gear whichcan be varied in a great range of ratio. 540. AUTOMOBILE STEER-ING GEAR. The steering shafthas a double thread screw and nutwith rack attached, which turns apinion to operate a shaft and arm con-nected to the wheel gear. French. 541. AUTOMOBILE STEERINGGEAR. A steering shaft with a doublethread screw acting on a sector gear, the shaftand arm of which operates the wheel ROAD AND VEHICLE DEVICES, ETC. 213
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