| All Patents in class 474/81 |
Patents 1 -
10
of 28
      |
| Picture | Number | Date | Patentee | Title |
| | 143,736 | Oct. 14, 1873 | O.H. Wade | Belt Shifting Apparatus |
 | 320,434 | Jun. 16, 1885 | W.H. Gray | Pulley and belt-shipper for machinery |
| | 467,097 | Jan. 12, 1892 | J. Hartness | Belt Shipper |
| | 821,181 | May 22, 1906 | E.A. Muller | Belt Shifter |
 | 928,045 | Jul. 13, 1909 | F. Hardinge | Controlling mechanism for lathe structures or the like |
| | 948,697 | Feb. 08, 1910 | B.M. Hanson | Gearing |
 | 955,920 | Apr. 26, 1910 | B.D. Stevens | Variable-speed device |
| | 971,219 | Sep. 27, 1910 | H.W. Schatz | Variable Speed Mechanism |
| | 973,801 | Oct. 25, 1910 | G. Langen, C. Meier | Belt-Gearing |
| | 975,356 | Nov. 08, 1910 | B.M. Hanson | Belt Shifter |
