. 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. MEASUREMENT OF POWER, SPRINGS. 39 45. REGISTERING AIR THERMOMETER. A glass tubebent into a circle with an air bulb at the top nicely balanced by coun-terweights on a knifeedge. Part of the tube, asshown by the heavy blackline, is filled with expansion and


. 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. MEASUREMENT OF POWER, SPRINGS. 39 45. REGISTERING AIR THERMOMETER. A glass tubebent into a circle with an air bulb at the top nicely balanced by coun-terweights on a knifeedge. Part of the tube, asshown by the heavy blackline, is filled with expansion and con-traction of the air in thebulb end moves themercury and carries thepointer up or down bychange of gravity. Acylinder moved by clock-work receives the


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Keywords: ., bookauthorhiscoxga, bookcentury1900, bookdecade1910, bookyear1910