Sheet metal file guide

Details Sheet metal file guide Sheet metal file guide

1975-10-01

1977-05-17

Smith, Al Lawrence

Metal tools and implements, making

Saw-making or furbishing device or machine

Sharpening and gumming

7 17, 15105, 33202, B23D 6310, B25F 100

Patent

active

040234452

ABSTRACT:
A flat sheet metal plate defining a reference plane on one side. Said plate having first and second sections and an intermediate section. The first and second sections being flat and in a common plane, and the intermediate section formed into a semi-circular loop with a center portion of the loop removed. The remaining portions of the semi-circular loop provide a pair of guide lugs to guide a round file. The first and second sections are adapted to rest on the depth gauge and cutter of a cutting link in a saw chain with the guide lugs straddling the chain and aligned with the gullet of a cutting link to guide the file in a desired orientation against the cutting edge of the cutting link.

REFERENCES:
patent: 2827697 (1958-03-01), Woodel
patent: 3055238 (1962-09-01), Hazzard
patent: 3283615 (1966-11-01), Kephart
patent: 3338116 (1967-08-01), McLean
patent: 3670600 (1972-06-01), Arff
patent: 3905118 (1975-09-01), Ballew
patent: 3935757 (1976-02-01), Granberg

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