Title: Cylindrical abrading tool

Abstract: A cylindrical abrading tool, such as a tire rasp, has a hollow body formed from a stack of blades -- or a single helicoidally wound blade -- with toothed outer edges sandwiched between a pair of apertured end disks. The blade tiers and disks are interconnected by axially extending mounting bolts, with maintenance of generally radial air-circulation passages between adjacent tiers by means of interposed spacers which may comprise lugs bent out of the blade planes or arcuate inserts with channeled transverse faces.

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Other info:

Inventors: Willinger, Karl (Vienna, OE)

Application Number: 611263
Filing Date: 1975-09-08
Publication_date: 1977-03-22
Assignee: Firma Hans Ehgartner (Vienna, OE)
Primary Class(es): 407/29.12 407/29.14
Other Classes:
US Patent Ref:

1566313	Dec, 1925	Cornell	29/78.
2703446	Mar, 1955	Jensen	29/79.
3074148	Jan, 1963	Heinmeter	29/79.
3259959	Jul, 1966	Tobey	29/79.
3528151	Sep, 1970	Walter	29/78.
3618187	Nov, 1971	Jensen	29/79.

Other Refs:
Primary Examiner: Hinson, Harrison L.
Assistant Examiner:
Attorney: Ross; Karl F., Dubno; Herbert