Metal tools and implements – making – Saw-making or furbishing device or machine
Patent
1981-10-02
1983-09-20
Parker, Roscoe V.
Metal tools and implements, making
Saw-making or furbishing device or machine
76 36, 76 74, 76112, 33202, B23D 6316
Patent
active
044048718
ABSTRACT:
A portable chain saw sharpening kit comprises a sharpener body in the form of an inverted U-shaped channel-defining member adapted to be placed over the bar of a chain saw, a rotary burr with a tapered abradant end portion which is receivable in a selected one of two horizontal guide bores provided in the sharpener body, and an alignment pin which is likewise receivable in a selected one of the two guide bores. The alignment pin comprises a shank portion and a reduced end portion, the latter providing an abutment surface for positioning a cutting link within the sharpener body channel in the proper position for sharpening. The shank portion and reduced end portion of the alignment pin are preferably cylindrical and have different diameters, with the reduced end portion being eccentrically offset from the shank portion and having a diameter substantially equal to the widest diameter of the tapered abradent end portion of the rotary burr.
REFERENCES:
patent: 2645859 (1953-07-01), Hanson, Jr.
patent: 2770985 (1956-11-01), Pearce
patent: 3283615 (1966-11-01), Kephart, Jr.
patent: 3744349 (1973-07-01), Juncker
Fritz Thomas A.
Shrode James W.
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