. 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. i8. GEARED I BEAMTROLLEY. Designed for mov-ing heavy articles on overhead Ibeam railways in factories. Thetrolley wheels are geared to a driv-ing shaft with sprocket wheel andchain, the lift being an ordinarytackle, not 19. VARIABLE POWER ANDSPEED with frictio
. 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. i8. GEARED I BEAMTROLLEY. Designed for mov-ing heavy articles on overhead Ibeam railways in factories. Thetrolley wheels are geared to a driv-ing shaft with sprocket wheel andchain, the lift being an ordinarytackle, not 19. VARIABLE POWER ANDSPEED with friction cone pulleys andtraversing pulley as applied to a drillingmachine. The transmitting roller ispivoted in a frame that slides on a sidebar and is clamped by a screw at theposition required for the desired No. 106, ist vol., for a frictionlessform of transmitting roller.
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