. 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. STEAM POWER APPLIANCES. 99. 229. DIFFERENTIAL PRESSUREREGULATOR. A supplementary pistonand counterweighted lever pivoted at F,gives a close adjustment of differential pres-sures. The steam piston at A is connectedwith the high pressure side and is balancedby the sprin
. 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. STEAM POWER APPLIANCES. 99. 229. DIFFERENTIAL PRESSUREREGULATOR. A supplementary pistonand counterweighted lever pivoted at F,gives a close adjustment of differential pres-sures. The steam piston at A is connectedwith the high pressure side and is balancedby the spring at B, while the supplementarylever is attached to the valve spindle by theblock and pin at C. 230. BALANCED PRESSUREREGULATOR. Gold type. D, balancedvalve. O, Low pressure regulating diskand diaphragm. L, counter-balance , adjusting plunger. F, contact spring tokeep the plate P in contact with the rubberdiaphragm. N, locknut handle. Otherparts are self-explanatory. 231. SELF-CLOSING STOP VALVE. The piston on thevalve stem has a larger area than the valve disk. The valve is held open by the relief from pressurethrough the by-pass and three-way cock. The dropping of itslever by a lanyard, closes the re-lief and gives the rear side ofthe piston the full steam pres-sure, quickly closing the by-pass valve at the top isfor equahzing th
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
