. 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. SECTION XIV. GEARING AND GEARMOTION, ETC. 231 SECTION XIV. GEARING AND GEAR MOTION, 600. NOVEL WORM GEAR. The threads of a spiral worm,instead of gearing into teeth Hke those of an ordinary worm wheel, actu-ate a series of rollers turning upon studs, whichstuds
. 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. SECTION XIV. GEARING AND GEARMOTION, ETC. 231 SECTION XIV. GEARING AND GEAR MOTION, 600. NOVEL WORM GEAR. The threads of a spiral worm,instead of gearing into teeth Hke those of an ordinary worm wheel, actu-ate a series of rollers turning upon studs, whichstuds are attached to a wheel whose axis is notparallel to that of the worm, but placed at rightangles thereto. When motion is given to theworm then rotation is produced in the rollerwheel at a rate proportionable to the pitch ofworm and diameter of wheel respectively. The pitch line of the screw thread forms an arc of a circle whose centercoincides with that of the wheel, therefore the thread will always bearfairly against the rollers and maintain rolling contact therewith duringthe whole of the time each roller is in gear, and by turning the screwin either direction the wheel will rotate. 601. SWASH-PLATE GEARS. The two gears A and B inappearance are two elhptical gears working under the impossible condition of fixed center distances with theirmajor and minor axes coinciding. Thesegears rotate at the same velocity
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
