. 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. 235. NOVEL REDUCING VALVE. Holly type, having a large area and lap ofa flat valve disk. The relative difference ofpressure is regulated by the free hangingweights under the disk, while excessive backpressure tends to close the valve by pressureon the large area of the
. 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. 235. NOVEL REDUCING VALVE. Holly type, having a large area and lap ofa flat valve disk. The relative difference ofpressure is regulated by the free hangingweights under the disk, while excessive backpressure tends to close the valve by pressureon the large area of the back of the disk. The wheel and screw spindle is to close thevalve when 236. DIFFERENTIAL EXHAUSTVALVE. For regulating the back pressureon the engine in exhaust steam-heatingsystems. The two-winged valves are nearly bal-anced, requiring only a small weight to bal-ance them and prevent chatter of the valves. STEAM POWER APPLIANCES. lOI 237. AUTOMATIC QUICK-CLOSING VALVE. The bonnetpiston C has a larger area than the valve disk and communicateswith the steam pressure in the main pipe through its hollow leakage of steam around the loose-fitting sleeve of the piston at Gequalizes the pressure on both sides when the relief pipe is closed.
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
