| All Patents in class 474/133 |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| 123,886 | Feb. 20, 1872 | W. Gardam, J. Gardam | Improvement in drilling-machines | drilling and boring |
| 187,870 | Feb. 27, 1877 | M. Lally | Improvement in methods of operating saw-mill carriages | sawmills |
| 278,064 | May 22, 1883 | J. Walrath | Saw-mill | circular sawmills |
| 284,703 | Sep. 11, 1883 | G.H. Zschech | Belt-tightener | industrial machine pulleys and belt drive mechanisms |
| 325,558 | Sep. 01, 1885 | A. Miller | Belt-tightener | clover hullers |
| 355,146 | Dec. 28, 1886 | M. Deering | Power-hammer | trip and helve hammers |
| 466,790 | Jan. 12, 1892 | W.R. Jenkins | Power Hammer | power hammers |
| 622,329 | Apr. 04, 1899 | F.H. Crafts | Speed Changing Driving Mechanism for Lathes | metal lathe accessories and attachments |
| 650,131 | May 22, 1900 | B.G. Luther | Belt-tightener | metalworking power transmission |
| 741,042 | Oct. 13, 1903 | H.C. Clay, J.N. Kailor | Quick Release Belt Tightener | industrial machine pulleys and belt drive mechanisms |
| 790,236 | May 16, 1905 | C.T. Whitesel | Power Hammer | power hammers |
| 842,756 | Jan. 29, 1907 | C.W. Blood | Belt-adjusting mechanism | industrial machine pulleys and belt drive mechanisms |
| 842,757 | Jan. 29, 1907 | C.W. Blood | Belt guiding and tightening mechanism | industrial machine pulleys and belt drive mechanisms |
| 945,326 | Jan. 04, 1910 | J.G. Hey | Belt-tightener | drill presses |
| 961,005 | Jun. 07, 1910 | H.A. Perkins | Belt-tightener | industrial machine pulleys and belt drive mechanisms |
