Circular blade sharpening device

Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof

Patent

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Details

51 34E, 51 95WH, 51105R, 51288, 74 8915, 744248B, B24B 336

Patent

active

046727760

ABSTRACT:
A sharpening device for a circular-shaped blade of the type used on a rotary meat trimming knife. The blade is rotatably mounted on a power driven blade holder which is movable horizontally along a base. A grinder which includes a motor and a power driven grinding wheel also is movable horizontally along the base whereby the paths of movement of the blade holder and grinder intersect with the grinding wheel engaging the cutting and edge of the blade at a predetermined angle. A sharpening control mechanism has a course advancement consisting of a threaded shaft which is slidably rotatably mounted in the base and is connected to the blade holder by a follower pin whereby rotation or linear movement of the shaft will move the blade holder linearly along the base and bring the blade into contact with the grinding wheel. A vernier control lever is engaged with the threaded shaft and is manually moved by an operator to forwardly advance the blade holder and blade a predetermined linear fine adjustment distance as the grinding wheel is reciprocated along its direction of travel causing momentary linear crossing contact between the grinding wheel and blade cutting edge to remove a predetermined amount of material from the blade cutting edge without generating excess heat in the blade or grinding wheel.

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