| All Patents of Type: steam engine valve gear |
Patents 1 -
15
of 160
      |
| Number | Date | Patentee | Title | Type |
| 2,227 | Aug. 21, 1841 | H. Allen | Cut-off valve for steam-engines | steam engine valve gear |
| XC-171 | Jan. 21, 1842 | C.M. Tate | An improved method of constructing cambs for the purpose of opening the cut-off, or other valves of steam engines | steam engine valve gear |
| GB-184,209,570 | Dec. 22, 1842 | R. Wilson | Improvements in locomotive and other steam-engines | steam engine valve gear |
| 4,202 | Sep. 19, 1845 | F.E. Sickels | Mode of connecting steam-cylinders with steam-chests | steam engine valve gear |
| 7,350 | May 07, 1850 | C. Richardson | Steam Engine Valve Gear | steam engine valve gear |
| 7,529 | Jul. 30, 1850 | G.B. Milner | Steam Engine Valve Gear | steam engine valve gear |
| 7,838 | Dec. 17, 1850 | S.H. Gilman | Expansion-Gear for Horizontal Engines | steam engine valve gear |
| 7,902 | Jan. 14, 1851 | J. Harris, Jr. | Converting Motion | steam engine crank rods |
| 12,507 | Mar. 13, 1855 | N.T. Greene | Cut-off valve for steam-engines | steam engine valve gear |
| 13,276 | Jul. 17, 1855 | A. Ferguson, J.B. Stott | Cross-Head Attachment for Working Steam-Engine Valves | steam engine valve gear |
| 14,749 | Apr. 22, 1856 | H.R. Worthington | Completing the throw of the valves of direct-acting engines by the exhaust-steam | steam engine valve gear |
| 14,991 | May 27, 1856 | J.F. Allen | Operating slide-valves for steam-engines | steam engine valve gear |
| 15,400 | Jul. 22, 1856 | H.R. Worthington | Relieving steam slide-valves from pressure | steam engine valve gear |
| 16,351 | Jan. 06, 1857 | C. Bradley | Steam Balanced Valve | steam engine valve gear |
| 16,358 | Jan. 06, 1857 | R.H. Fletcher | Operating Steam Slide Valves | steam engine valve gear |
