| All Patents of Type: steam engine valve gear |
Patents 1 -
15
of 107
      |
| 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 |
| 7,838 | Dec. 17, 1850 | S.H. Gilman | Expansion-Gear for Horizontal Engines | steam engine valve gear |
| 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 |
| 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 |
| 19,134 | Jan. 19, 1858 | A. Crosby | Variable cut-off for steam-engines | steam engine valve gear |
| RE565 | Jun. 01, 1858 | F.E. Sickels | Improvement in the mode of connecting steam-cylinders with steam-chests | steam engine valve gear |
| 21,399 | Aug. 31, 1858 | J. Widmer | Cut-Off for Steam-Engines | steam engine valve gear |
| 31,335 | Feb. 05, 1861 | W. Smith | Steam Engine Valve Gear | steam engine valve gear |
| 69,526 | Oct. 01, 1867 | G. Smith, J.N. Wrigley | Improvement in cut-off valve-gear | steam engine valve gear |
| 103,698 | May 31, 1870 | D.A. Woodbury | Reversing and Cut-Off Apparatus for Steam Engines | steam engine valve gear |
