| Patents for Hiram A. Perkins |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 910,413 | Jan. 19, 1909 | H.A. Perkins, F.H. Clement | Planing-machine cutter-head | cutterheads |
| 916,934 | Mar. 30, 1909 | H.A. Perkins | Feed mechanism for wood-planers | woodworking machine stockfeeding mechanisms |
| 936,659 | Oct. 12, 1909 | H.A. Perkins | Feed-roll-controlling mechanism for wood-planers | wood planers |
| 961,005 | Jun. 07, 1910 | H.A. Perkins | Belt-tightener | industrial machine pulleys and belt drive mechanisms |
| 963,246 | Jul. 05, 1910 | H.A. Perkins | Stock-scraper for wood-planing machines | wood planers |
| 964,051 | Jul. 12, 1910 | H.A. Perkins | Belt shifter and tightener | woodworking power transmission |
| 1,054,936 | Mar. 04, 1913 | H.A. Perkins | Jointing attachment for cutter-heads | woodworking machine sharpening mechanisms |
| 1,059,313 | Apr. 15, 1913 | H.A. Perkins | Step bearing for machinery | woodworking machine mechanisms |
| 1,292,579 | Jan. 28, 1919 | H.A. Perkins, F.H. Clement | Double surfacer | wood planers |
| 1,427,757 | Aug. 29, 1922 | H.A. Perkins, G.S. MacDowell | Stock-positioning mechanism | circular ripsaws |
| 1,603,555 | Oct. 19, 1926 | H.A. Perkins | Yieldable feeding roll | woodworking machine stockfeeding mechanisms |
| 1,622,880 | Mar. 29, 1927 | H.A. Perkins | Radial bearing | woodworking machine mechanisms |
