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All Patents in class 91/259
Patents 1 - 15 of 20
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NumberDatePatenteeTitleType
2,227Aug. 21, 1841H. AllenCut-off valve for steam-enginessteam engine valve gear
4,028May 01, 1845T. RogersCut-Off Valve for Steam Enginessteam engine valves
6,324Apr. 17, 1849G. McKayPiston-valve cut-offsteam check valves
10,185Nov. 01, 1853L.R. FaughtRegulating the speed of steam-engines
16,781Mar. 10, 1857J.F. AllenImprovement in cut-offs for steam-enginessteam engine valve gear
33,274Sep. 10, 1861A.S. WalbridgeImprovement in cut-off apparatus for steam-engines
54,090Apr. 24, 1866G.H. Babcock, S. Wilcox, Jr.Improvement in cut-off valvessteam engine valves
73,069Jan. 07, 1868J.F. AllenImprovement in valve-gearsteam engine valve gear
73,415Jan. 14, 1868H.O. LothropImprovement in steam-engines cut-offssteam engine governors
75,034Mar. 03, 1868H.O. LothropImprovement in steam-engines cut-offssteam engine governors
158,669Jan. 12, 1875H. BilgramImprovement in cut-off valve-gearssteam engine valve gear
164,132Jun. 08, 1875H. BilgramImprovement in cut-off-valve gearssteam engine valve gear
172,116Jan. 11, 1876A.O. Whittemore, G.W. HallEngine-Governorsteam engine governors
222,376Dec. 09, 1879A.B. FilsExpansion-Valve for Steam Enginessteam engine valves
252,224Jan. 10, 1882D. JoySteam Engine Valve Gearsteam engine valve gear
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