Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1981-07-21
1984-05-29
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
248171, 248528, 76 82, B24D 1508
Patent
active
044506538
ABSTRACT:
A knife sharpener, comprising a sharpening rod mounted in a base, includes a first expandable position for storage as a compact unit.
Wing members project laterally from a central member to provide stability during use, but are retractable into a cutout in the central member for compact storage. The wing members are drivingly connected to a support block for mounting the rod, so that when the wing members are positioned for use, the rod is rotated to an upright position. However, when the wing members are retracted, the rod rotates to a horizontal position, within a recess in the central member, for storage.
The knife sharpener includes a rod mounting assembly comprising a sleeve, having a diameter larger than the rod, to permit the rod to be inclined, in any direction, at a predetermined angle relative to the sleeve. This predetermined angle is adjustable by rotating a plug, threadedly mounted in the sleeve.
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patent: 4259815 (1981-04-01), Kuban
Fletcher Engineering, Inc.
Rose Robert A.
Schmidt Frederick R.
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