| All Patents in class 474/134 | 
| Patents 1 - 
					15
					of 16 
       | 
| Number | Date | Patentee | Title | Type | 
| 96,718 | Nov. 09, 1869 | R.N. Meriam | Improved belt-tightener | woodworking power transmission | 
| 175,676 | Apr. 04, 1876 | W.H. Doane, G.W. Bugbee | Planer-matcher convertible to planer | matchers | 
| 356,280 | Jan. 18, 1887 | E.E. Elder | Machine for sawing wooden gutters | specialty woodworking machines | 
| 401,677 | Apr. 16, 1889 | E.F. Autenrieth | Belt-tightener for planing-machines | wood planers | 
| 495,445 | Apr. 11, 1893 | S.A. Woods, H.R. Tillison | Belt-tightener for planing-machines | wood planers | 
| 589,003 | Aug. 31, 1897 | B.G. Luther | Swing sawing and grooving machine | circular crosscut saws | 
| 980,435 | Jan. 03, 1911 | V.F. Prentice | Belt-drive | drill presses | 
| 1,188,810 | Jun. 27, 1916 | H.J. Mitchell | Belt-tighteners | industrial machine pulleys and belt drive mechanisms | 
| 1,259,343 | Mar. 12, 1918 | W.J. Bayrer | Belt-gearing | drill presses | 
| 1,690,145 | Nov. 06, 1928 | W.O. Vivarttas | Molding machine | molders | 
| 1,879,145 | Sep. 27, 1932 | B. Erickson | Three-wheel bandsaw | bandsaws | 
| 2,099,218 | Nov. 16, 1937 | W.T. Pritchard, F.A. Nicholson | Driving mechanism to maintain constant the required length of an endless driving means | woodworking machine stockfeeding mechanisms | 
| 2,099,219 | Nov. 16, 1937 | W.T. Pritchard, F.A. Nicholson | Mechanism to maintain constant the required length of an endless driving means | woodworking machine stockfeeding mechanisms | 
| 2,099,220 | Nov. 16, 1937 | W.T. Pritchard, F.A. Nicholson | Mechanism to maintain constant the required length of an endless driving means | woodworking machine stockfeeding mechanisms | 
| 3,757,683 | Sep. 11, 1973 | E.O. Engerbretsen, E. Grunewald | Compactor drive chain tensioning apparatus |  |