US 4,050,197 AGranted

Blade and scissors sharpener

OwnerWillis F. Thompson, deceased, by Nelson L. Thompson, administratorinventors

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Abstract

A blade sharpener is disclosed that has a sharpening unit rotatably mounted in a support with an upper portion thereof exposed to enable a knife blade to be reciprocated with a beveled edge maintained in contact with a side of the abrasive wheel of the unit by the engagement of the opposite side of the blade with a blade support, which is part of the unit, the unit turning during such reciprocation. The connection between the unit and the support permits the unit to wobble as it rotates as required by the reciprocated blade. The sharpener also includes a guide rotatable between a position under the unit to a position in which it overlies it and is provided with a slot enabling a scissors blade to be inserted therein with its beveled edge in tangential engagement with the periphery of the abrasive wheel. The guard includes a portion that may be depressed into engagement with the unit to hold it against turning as the scissors blade is reciprocated.

Claims9

Dependent claims

A blade sharpener comprising a holder including a pair of end wall members, a unit dimensioned to be a free but close fit between said walls and including an abrasive wheel the periphery of which is flat transversely considered, and a pair of blade supporting members, one at each side of said wheel and engageable by the side of a blade and downwardly inclined towards the wheel to enable one side of a blade to be seated thereon with the beveled edge of the other side of the thus held blade to be held in contact with the proximate side of the wheel, and axial supporting means between said end wall members and means for mounting said unit on said axial supporting means with a loose fit with respect thereto whereby said unit rotates as the thus held blade is reciprocted and is also free to wobble to a limited extent said blade supports of a diameter greater than that of the wheel and close to but below the upper edge of said wall members with the upper edges of said wall members each substantially in the plane inclusive of the thus positioned blade.

Dependencies are inferred from the claim text.