| All Patents in class 474/187 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 229,138 | Jun. 22, 1880 | E.E. Josef | Wheel and Pulley | industrial machine pulleys and belt drive mechanisms |
| 244,126 | Jul. 12, 1881 | W.D. Herschel | Friction-pulley | industrial machine pulleys and belt drive mechanisms |
| 271,416 | Jan. 30, 1883 | W.W. Carey | Wood-rim pulley | industrial machine pulleys and belt drive mechanisms |
| 282,161 | Jul. 31, 1883 | W.W. Carey | Wood-rim pulley | industrial machine pulleys and belt drive mechanisms |
| 295,999 | Apr. 01, 1884 | E.F. Gordon | Self-lubricating loose pulley | industrial machine lubrication |
| 451,590 | May 05, 1891 | R.F. Barker | Pulley for band-saw mills | band sawmills |
| 575,106 | Jan. 12, 1897 | T. Corscaden | Pulley | industrial machine pulleys and belt drive mechanisms |
| 615,883 | Dec. 13, 1898 | A.W. Nelson | Loose Pulley and Means for Attaching Same to Shafts | industrial machine pulleys and belt drive mechanisms |
| 643,782 | Feb. 20, 1900 | J.R. Thame | Fiber Pulley | industrial machine pulleys and belt drive mechanisms |
| 788,185 | Apr. 25, 1905 | R.H. Bowen | Sheet-metal pulley | industrial machine pulleys and belt drive mechanisms |
| 2,378,643 | Jun. 19, 1945 | A.H. Losey | Grinding or polishing machine and contact roll therefor | |
| 3,961,737 | Jun. 08, 1976 | J.J. Fatula | Self-centering rolls | |
