US Patent: 1,767,272 - Knife-grinder bearing


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US Patent: 1,767,272

Knife-grinder bearing

Patentee:

Arthur W. Beaman (exact or similar names) - Worcester, MA

USPTO Classifications:

384/609

Tool Categories:

woodworking machines : machine and tool cutters : cutter grinding

Assignees:

None

Manufacturer:

A B Mfg. Co. - Worcester, MA

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 25, 1927
Granted:	Jun. 24, 1930

Patent Pictures:

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Vintage Machinery entry for A B Mfg. Co.

Description:

Improvements to patent 1,085,876. This patent has been seen on a jointer and planer knife grinder that sharpens the knives in situ.

"The principal object of this invention are to provide anti-friction bearings for the grinding wheel spindle to produce a greater durability and smooth running free from vibration, thereby giving a keener edge to the knives ground; to provide a sleeve of increased diameter for receiving the bearings, and to provide means to automatically take up slack between the bearings."