Metal tools and implements – making – Saw-making or furbishing device or machine
Patent
1986-05-02
1987-07-07
Parker, Roscoe V.
Metal tools and implements, making
Saw-making or furbishing device or machine
76 37, B23D 6316
Patent
active
046778810
ABSTRACT:
A chain saw sharpening device having a generally U-shaped frame defined by an upper web and first and second parallel side walls for overlying the chain and the guide bar of the chain saw. The frame includes an open area near the center of the upper web defining a sharpening area. Clamping screws are associated with the frame to secure the frame to the cutting bar and an additional clamping screw is associated with the frame for engaging the link of the tooth to be sharpened in order to fix its position with respect to the sharpening area of the frame. A tooth stop for adjusting the position of the tooth with respect to the sharpening area of the frame is mounted on a sliding block received in a keyway in the upper web of the frame, the keyway being parallel to the longitudinal axis of the channel in the cutting bar for the chain. An adjustment bolt rotatably captured with respect to the frame adjusts the position of the sliding block and tooth stop pawl along the length of the keyway to provide a precise, controlled adjustment of the location within the sharpening area of the tooth to be sharpened. A rotary burr having an abradant surface is receivable in either of two diagonally disposed guide bores for sharpening left-hand and right-hand cutting teeth.
REFERENCES:
patent: 2770985 (1956-11-01), Pearce
patent: 3744349 (1973-07-01), Juncker
patent: 4404871 (1983-09-01), Fritz et al.
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