. 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. carbons,and is thus heated and expanded so as topress the movable troughs 35, 21 againstthe carbons, and move the carbons apart,when sufficient current is supplied, but toallow the carbons to move together and slipdown when the current decreases. Eachcarbon may be pre
. 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. carbons,and is thus heated and expanded so as topress the movable troughs 35, 21 againstthe carbons, and move the carbons apart,when sufficient current is supplied, but toallow the carbons to move together and slipdown when the current decreases. Eachcarbon may be pressed down by a spring 49placed between its coned upper end and anarm 47 of its holder; with continuous current, movement of the nega-tive carbon is retarded by screws 46. The expansion strip 53 andheater 51 may be replaced by toggle links connecting the sockets 57with an arm of an iron core, movable vertically into a series solenoidon the top plate i. The springs may be steel strips coated withcopper. The ends of the heater or solenoid wires are connectedto the upper and lower parts of the spring, which is divided by aninsulator 17. The lamp may be inclosed by a globe 7, secured by apacked ring and screws to the top plate. A nozzle 8 is provided,through which air may be exhausted from the globe, and another 413. SEARCH-LIGHT
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
