. 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. the shaft that operatesthe needle bar and shuttlewith a rheostat to controlthe speed. A pinion on thedriving shaft meshing inan internal toothed wheelwith handle enables man-agement of the sewing ma-chine by hand. ELECTRIC POWER AND DEVICES. 175 422. ELECTRIC MOTOR WO
. 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. the shaft that operatesthe needle bar and shuttlewith a rheostat to controlthe speed. A pinion on thedriving shaft meshing inan internal toothed wheelwith handle enables man-agement of the sewing ma-chine by hand. ELECTRIC POWER AND DEVICES. 175 422. ELECTRIC MOTOR WORM-DRIVEN PUMP. It con-sists of the motor E, mounted on a base with a duplex pump, which drives the latter by means of doubleworm gearing and cranks. The com-bination of right- and left-hand worms,A and A, drives two worm wheels,B and B, which mesh together andthereby balance the thrust of theworms. The cranks are mountedon the shaft of the worm wheel the power of the motor(less friction) is transmitted to theworm wheel B through the wormmeshing with it; the other one-half is transmitted to it by the meshingworm wheel B. By the use of the yoked extended piston rod D andshort connecting rod the combination is made unusually compact. The float in the tank is the governor of the pump, through theautomatic Suction cz/- 423. ELECTRIC INCUBATOR. German. A basket filled withhay or fine straw upon which the eggs are laid. The cover consists of
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
