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All Patents in class 251
Patents 1 - 15 of 438
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NumberDatePatenteeTitleType
FX-6,157Oct. 01, 1830A.B. QuimbyPreventing explosion of steamboat boilerssteam safety valves
8,303XJul. 10, 1834J. KirkpatrickSelf-balance steam valves
8,849XMay 29, 1835J. KirkpatrickBoiler valves and cam of the steam enginestationary boilers
9,380XFeb. 10, 1836C.W. PeckhamMolasses faucet
2,342Nov. 10, 1841L. LincolnConstruction of molasses gates and cocks for drawing liquors
RE105Jan. 25, 1848L. LincolnImprovement in the construction of molasses gates and cocks for drawing liquors
5,540Apr. 25, 1848W.B. HillBalance Valve for Steam Enginestraction engine governors
10,398Jan. 03, 1854W. WrightOperating Cut-Off Valves of Steam Enginessteam engine valves
10,800Apr. 18, 1854R.M. BoutonFaucetfaucets
12,507Mar. 13, 1855N.T. GreeneCut-off valve for steam-enginessteam engine valve gear
12,873May 15, 1855J.A. ReedSteam-Engine Valvesteam pumps
15,030Jun. 03, 1856H.R. WorthingtonMethod of attaching stems to conical valveswater valves
15,400Jul. 22, 1856H.R. WorthingtonRelieving steam slide-valves from pressuresteam engine valve gear
16,351Jan. 06, 1857C. BradleySteam Balanced Valvesteam engine valve gear
17,433Jun. 02, 1857L.J. KnowlesFaucet
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