Abrading – Frame or mount – Rotary tool supporter
Patent
1999-12-20
2000-09-26
Banks, Derris H.
Abrading
Frame or mount
Rotary tool supporter
451340, 451312, 451455, B24B 4100
Patent
active
06123611&
ABSTRACT:
A lawn mower blade sharpening apparatus has a standard bench grinder having a grinding wheel thereon attached to a workbench. A lawn mower blade support frame is attached to the workbench adjacent the bench grinder and has a blade support surface hinged to the frame and a cutout area therein having the bench grinder grinding wheel extending through the cutout so that the blade support surface can be rotated on the hinge adjacent the grinding wheel to vary the angle of the blade support surface to the grinding wheel. A threaded adjustment bolt is threaded through the frame and abuts the blade support surface and has a gripping handle on one end thereof and an abutment cap on the other end thereof. Threading the threaded adjustment bolt in and out adjusts the angle of the hinge blade support surface to change the angle of the support relative to the grinding wheel for sharpening blades at different angles on the grinding wheel while supported on the blade support surface. Spark shielding walls are attached to the frame base and blade support surface to cooperate with each other to shield a user from grinding sparks.
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patent: 5062322 (1991-11-01), Sinko
patent: 5525095 (1996-06-01), Baugman
patent: 5676592 (1997-10-01), Borgatti
Banks Derris H.
Hobby III William M.
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