Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1977-06-22
1979-01-09
Godici, Nicholas P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51355, 51364, 51382, B24D 1304
Patent
active
041331460
ABSTRACT:
A rotary mandrel which can directly engage sandpaper or other wearing material, to eliminate the need for intermediate devices to couple the mandrel to the sandpaper. The mandrel is constructed with slots that closely receive the edges of the sandpaper to form an interference fit that has been found to avoid flying out of the sandpaper when the mandrel rotates and engages the work piece being sanded. The mandrel is tapered at its outer end, and the sandpaper holding slots have open outer ends that allow the sandpaper sheets to extend beyond the tapered mandrel end, which enables the sheets to deform into a cone shape to sand a small hole or other concave workpiece region. In one mandrel, a group of sheets are stapled together along the edge, and the staple lies in an undercut slot in the mandrel.
REFERENCES:
patent: 437463 (1890-09-01), Teague
patent: 734581 (1903-07-01), Lockwood
patent: 739028 (1903-09-01), Rollins
patent: 1118153 (1914-11-01), Sanborn
patent: 2259685 (1941-10-01), Elsloo
patent: 2440856 (1948-05-01), Harrison
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patent: 3496684 (1970-02-01), Banning
patent: 3512311 (1970-05-01), Block
patent: 3678633 (1972-07-01), Block
C. E. Wolfe, American Machinist, "Abrasive Cloth in Cotter Pin", 9-24-56, p. 148.
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