. 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. 969. PERPETUAL MOTION. Electro-magnetic type. In theengraving, A represents a frictional electrical machine ; B, a crank ; C, an electro-magnet ; D, wire con-ductors ; F, a trunnion; G, anarmature ; E, a circuit closer ; H, apitman ; I, an insulating substance ;and J,
. 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. 969. PERPETUAL MOTION. Electro-magnetic type. In theengraving, A represents a frictional electrical machine ; B, a crank ; C, an electro-magnet ; D, wire con-ductors ; F, a trunnion; G, anarmature ; E, a circuit closer ; H, apitman ; I, an insulating substance ;and J, a spiral spring. The device is expected to operateas foUows: The frictional electrical machineis started, which magnetizes thetemporary magnet and draws the armature toward it. This breaksthe circuit at the point, I, E, which demagnetizes the temporary magnetand allows the spring, J, to again close the circuit. By this means acontinued motion is expected to be kept up. To those not familiar with the science of molecular physics this devicemay appear very plausible; a little reading, however, upon the subjectof the correlation of forces will serve to show its utter
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
