Chain saw sharpening apparatus with unique disassembly feature

Details Chain saw sharpening apparatus with unique disassembly feature Chain saw sharpening apparatus with unique disassembly feature

1998-05-15

1999-11-16

Watts, Douglas D.

Metal tools and implements, making

Saw-making or furbishing device or machine

Chain saw sharpener

B23D 6316

Patent

active

059837551

ABSTRACT:
An apparatus for sharpening a chain saw includes a frame, a file guide carriage having at least one guide bore capable of receiving a file therethrough, and a guide bar attached to the frame. The file guide carriage is mounted with respect to the frame so as to allow for sliding movement along an axis and an elongate opening in the carriage is coincident with the axis. The improvement includes at least one easy-to-remove adjustment screw that has spaced-apart inward and outward bearing surfaces threaded into the elongate opening. A bearing member extends from the guide bar and is interposed between the bearing surfaces. This bearing member includes a first aperture aligned with the axis and having a first diameter that allows for the receiving of the adjustment screw, and a second aperture overlapping the first aperture and having a second diameter greater than the first diameter.

REFERENCES:
patent: 3744349 (1973-07-01), Juncker
patent: 4677881 (1987-07-01), Jorde

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