Geometrical instruments – Gauge – Tool
Patent
1982-11-08
1984-10-02
Martin, Jr., William D.
Geometrical instruments
Gauge
Tool
76 25A, B23D 6300
Patent
active
044739583
ABSTRACT:
A filing guide for saw chain which includes a plate having a flat expanse joining with a curved expanse at the forward end of the guide which forms a cylinder. The guide is useable, with one side facing upwardly and the cylinder seated in a pocket defined in a saw chain, to guide a file during filing of a depth gauge and a safety projection in the saw chain. With the guide turned over from this position, and the cylinder again seated in the pocket, the guide is useable to guide a file during filing of a cutting edge in the saw chain.
REFERENCES:
patent: 2737830 (1956-03-01), Silverson et al.
patent: 2898782 (1959-08-01), Consoletti
patent: 3055115 (1962-09-01), Tyrrell
patent: 3365805 (1968-01-01), Carlton
Carlton Company
Martin, Jr. William D.
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