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US Patent: 324,600
Manufacture of Saws
Patentee:
Charles T. Shoemaker (exact or similar names) - Philadelphia, PA

USPTO Classifications:
125/18, 148/588, 148/905, 30/350, 76/112, 83/835

Tool Categories:

Assignees:
Hamilton Disston - Philadelphia, PA
Horace C. Disston - Philadelphia, PA
William Disston - Philadelphia, PA
Jacob S. Disston - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Henry Bossert
Harry Smith

Patent Dates:
Granted: Aug. 18, 1885

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
Description:
The blade is made true first by grinding, then tempered, then final grinding and polishing. The final grinding does not affect the tooth area resulting in a loss of the tempering.

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