Portable power file and belt tensioning arrangement therefor

Details Portable power file and belt tensioning arrangement therefor Portable power file and belt tensioning arrangement therefor

1986-09-18

1988-03-01

Parker, Roscoe V.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51273, B24B 2306

Patent

active

047276851

ABSTRACT:
A hand-held powered file has an arm assembly carrying a pulley around which passes an abrasive belt. The arm assembly is urged into a position tensioning the belt by a spring. A control knob has a cam track which cooperates with a follower to relieve the tension exerted on the belt by the spring by moving the assembly rearwardly against the spring.

REFERENCES:
patent: 2865143 (1958-12-01), Goldsmith
patent: 3594959 (1971-07-01), Wezel
patent: 3619949 (1970-06-01), Welsch et al.
patent: 3938283 (1976-02-01), Keith, Jr.
patent: 4368597 (1983-01-01), Fleckenstein et al.
patent: 4411106 (1983-10-01), Fleckenstein et al.

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