US Patent: 2,655,057 - Saw filing machines


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US Patent: 2,655,057

Saw filing machines

Patentee:

Henry E. Hull (exact or similar names) - Worthington, OH

USPTO Classifications:

76/35, 76/36

Tool Categories:

metalworking machines : grinders : sharpening machines : saw sharpening machines

Assignees:

Rockwell Tools, Inc. - Columbus, OH

Manufacturer:

Rockwell Mfg. Co. - Pittsburgh, PA

Witnesses:

Unknown

Patent Dates:
Applied:	Sep. 15, 1949
Granted:	Oct. 13, 1953

Patent Pictures:

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Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.

Description:

The invention is a machine for sharpening "those circular saws which have a deep gullet between groups of cutting teeth." This patent number was listed in a 1965 catalog of machinery from Rockwell Mfg. Co.