. 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. prevents slipping of the fric-tion cones. The bell-crank arm on thehandle holds the clutch fast in its lockedposition. 30. PNEUMATIC BELT SHIPPER. The device consists sim-ply of a small air cylinder with a piston travel, such as will give the belt the proper throw; th
. 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. prevents slipping of the fric-tion cones. The bell-crank arm on thehandle holds the clutch fast in its lockedposition. 30. PNEUMATIC BELT SHIPPER. The device consists sim-ply of a small air cylinder with a piston travel, such as will give the belt the proper throw; the cyl-inder is piped from each endto a two-way cock, the plug ofwhich has a bar with a loopedcord within reach of the opera-tor. Attached to the piston isan arm <?, which extends downto the bar carrying the shifterforks—air does the rest. Sec-tion 31 explains the whole thingfor a belt requiring but onemovement. Machines having a backingbelt are provided for by the ar-rangement shown in section 32,in which the piston and beltshifter are held in a centralposition by two coiled springswhen the belts are on the loosepulleys. The springs are com-pressed, and their resistance iseasily overcome, when air is admitted to the opposite ends or thecyhnder, which action will put the belt on either the forward or back-ing TRANSMISSION OF POWER. 31
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
