. 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. SMISSION OF POWER. 23. FRICTION PULLEY. The flange at the left is fast on the shaft, whilethe flange at the right is loose. On theend of the hub of the latter flange teethare cut, the surfaces between the teethbeing helical, as shown. The fixed collarat the right is m
. 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. SMISSION OF POWER. 23. FRICTION PULLEY. The flange at the left is fast on the shaft, whilethe flange at the right is loose. On theend of the hub of the latter flange teethare cut, the surfaces between the teethbeing helical, as shown. The fixed collarat the right is milled to correspond. Thespring secured to the loose flange and thecollar is always under tension and tendsto rotate the flange in the direction inwhich the belt travels. As the flangeturns on the shaft it is forced against therunning pulley and is then turned by thefriction until the pulley is clamped fastbetween the two friction surfaces, whenthe pulley, flanges, and shaft all rotate to-gether. To release the pulley, the brake—shown just below the right-hand fric-tion disk—is brought against the angularface of the flange. This holds the flange back, but the collar stillturns ahead with the shaft, thus removing the end pressure on thefriction and releasing the pulley. 24. A section showing the details of
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Keywords: ., bookauthorhiscoxga, bookcentury1900, bookdecade1910, bookyear1910
