Saw chain sharpener

A chain saw sharpener, said sharpener including a mount, a rotary grinding member journalled from said mount for rotation about a first upstanding axis, a generally horizontal support arm, means oscillatably mounting said mount from one end of said support arm for angular displacement about a second axis generally paralleling and spaced to one side of said first axis, the other end of said support arm including chain saw bar support structure supported therefrom a chain saw bar nose end removably supported from said support structure with said bar generally paralleling said support arm and having its nose end facing toward said second axis and with at least the upper portion of said nose end exposed and the peripheral edges of said bar sufficiently free of adjacent obstructions to allow longitudinal shifting of a saw chain along said peripheral edges, said arm including depending support means for support from a support surface below said arm and adapted to support said nose end in slightly elevated position above said support surface when the end of the chain saw remote from said nose end rests upon said surface, the spacing between said second axis and said chain saw bar nose end being greater than the spacing between said axes and such to position angularly spaced peripheral portions of the side of said rotary grinding member remote from said second axis closely adjacent said nose end, and on opposite sides thereof, when said mount is swung to positions with said first axis closely adjacent opposite sides of a plane containing said second axis and generally paralleling said arm.