| All Patents in class 474/81 |
Patents 1 -
15
of 28
      |
| Number | Date | Patentee | Title | Type |
| 143,736 | Oct. 14, 1873 | O.H. Wade | Belt Shifting Apparatus | industrial machine pulleys and belt drive mechanisms |
| 320,434 | Jun. 16, 1885 | W.H. Gray | Pulley and belt-shipper for machinery | woodworking machine mechanisms |
| 467,097 | Jan. 12, 1892 | J. Hartness | Belt Shipper | industrial machine pulleys and belt drive mechanisms |
| 821,181 | May 22, 1906 | E.A. Muller | Belt Shifter | metalworking machine mechanisms |
| 928,045 | Jul. 13, 1909 | F. Hardinge | Controlling mechanism for lathe structures or the like | metal lathes |
| 948,697 | Feb. 08, 1910 | B.M. Hanson | Gearing | industrial machine gearing |
| 955,920 | Apr. 26, 1910 | B.D. Stevens | Variable-speed device | band resaws |
| 971,219 | Sep. 27, 1910 | H.W. Schatz | Variable Speed Mechanism | metalworking variable speed mechanisms |
| 973,801 | Oct. 25, 1910 | G. Langen, C. Meier | Belt-Gearing | metalworking machine gearing |
| 975,356 | Nov. 08, 1910 | B.M. Hanson | Belt Shifter | industrial machine pulleys and belt drive mechanisms |
| 979,918 | Dec. 27, 1910 | J.R. Vincer, J.S. Barnes | Gearing for Drilling Machines | industrial machine gearing |
| 983,251 | Jan. 31, 1911 | H.W. Schatz | Variable Speed Mechanism | metalworking variable speed mechanisms |
| 1,089,152 | Mar. 03, 1914 | A.C. Pletz | Belt-shifter | industrial machine pulleys and belt drive mechanisms |
| 1,125,404 | Jan. 19, 1915 | H.W. Schatz | Belt Shifter | industrial machine speed and direction changing mechanisms |
| 1,167,440 | Jan. 11, 1916 | G. Sipp | Variable-speed gearing | drill presses |
