Backing block for profile sanders

Details Backing block for profile sanders Backing block for profile sanders

1982-02-11

1987-05-05

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51140, 51266, B24B 2118

Patent

active

046621210

ABSTRACT:
Disclosed is a shaped backing block for abrasive-coated belts of profile sanding devices. The shaped block having improved wear and heat dissipation characteristics comprises a block of aluminum silicate cut to the desired size and having one face thereof machined to the desired contour. The contoured face of the block is sanded and polished and holes or passageways extending parallel to the face of the block are provided through the body thereof to dissipate heat. The shaped blocks are then hardened by firing at a very high temperature.

REFERENCES:
patent: 2199069 (1940-04-01), Fowler
patent: 2527554 (1950-10-01), Kimball
patent: 2717422 (1955-09-01), Rowe et al.
patent: 3170272 (1965-02-01), Burnham
patent: 4204371 (1980-05-01), Horwitz

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