Title: Grinding wheel guide means for forage harvester

Abstract: A forage harvester having a rotatable cutter head coacting with a shear bar is provided with a grinding wheel which is power driven and adapted to be moved longitudinally along transversely extending guide means adjacent the circumferential outline of the cutting edges of the knives of the cutter head while the grinding wheel is rotating. When the guide means is in one position, the grinding wheel is positioned to sharpen the cutting edges of the knives and, when one end of the guide means is shifted to a second position, the grinding wheel will be positioned to grind bevelled surfaces of uniform depth and width along said knives rearwardly of the newly sharpened cutting edges thereof.

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Inventors: Stoltzfus, David D. (Gordonville, PA, US)
Snavely, Benjamin H. (New Holland, PA, US)

Application Number: 588095
Filing Date: 1975-06-18
Publication_date: 1976-09-07
Assignee: Sperry Rand Corporation (New Holland, PA)
Primary Class(es): 241/101.2 451/421
Other Classes:
US Patent Ref:

3581446	Jun, 1971	Witt et al.	51/249.
3638363	Feb, 1972	Witt et al.	51/249.

Other Refs:
Primary Examiner: Custer, Jr., Granville Y.
Assistant Examiner:
Attorney: Just; C. Hercus, Seemar; Frank A., Flanagan; John R.