| Patents Granted on 1842-??-?? |
Patents 1 -
15
of 89
      |
| Number | Date | Patentee | Title | Type |
| XC-170 | Jan. 13, 1842 | C.M. Tate | An improved method of giving motion and efficacy to the propellor in steam boats and other vessels | steamboats |
| 2,425 | Jan. 17, 1842 | J.A. Fay | Machine for mortising timber | mortising machines |
| 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 |
| XC-172 | Jan. 27, 1842 | C.M. Tate | A new method of tanning hides or skins | tanner |
| XC-173 | Jan. 27, 1842 | C.M. Tate | A new and improved method of extracting the tannin from bark | bark processing machines |
| AI50 | Feb. 01, 1842 | J.E. Kelsey, J.A. Potter | Cotton press (for baling) | |
| 2,440 | Feb. 01, 1842 | H. Aiken | Improvement in machines for excavating ditches | |
| 2,443 | Feb. 01, 1842 | R. Cook | Manufacture of Wrought-Iron and Steel Cannons | |
| 2,444 | Feb. 01, 1842 | S.E. Burnham, R. Cook | Mode of straining saws for sawmills | reciprocating sawmills |
| 2,453 | Feb. 07, 1842 | J. Walter, L.D. Walter | Machine for Making Screws | screw machines |
| 2,457 | Feb. 12, 1842 | A. Kinney | Machine for cutting shingles | shingle machines |
| 2,459 | Feb. 12, 1842 | W. Murray, J. Murray | Machine for breaking and grinding corn and corncobs | corn grinders |
| 2,467 | Feb. 21, 1842 | A. Ralston | Grain Separator | corn and grain separators |
| GB-184,209,078 | Mar. 08, 1842 | J. Garnett, J. Mason | Improvements in machinery employed in the manufacture of yarns and cloth | |
| 2,481 | Mar. 09, 1842 | H.H. Herrick | Machine for cutting shingles | shingle machines |
