US Patent: 78,863
|
| Grinding Harvester Knives
|
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Jun. 16, 1868 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
|
|
Description: |
| J. H. Alexander - patent attorney
In operating my machine, the knife will be held in the proper position by pressing on the end of plate M, and the necessary pressure given to the knife by operating lever G with thumb-screw in. When there is a wobbling motion in the stone, the knife will partake of that motion by the action of the pulley on lever G, and the action of lever G on the cutter-bar and knives. By means' of this arrangement, the knife undergoing the process of grinding will always, when the stone wobbles, bear the same relative position to the surface of the stone, thus avoiding the possibility of blunting the edge of one knife while sharpening the one next to it.
|
|
