US Patent: 324,600 - Manufacture of Saws


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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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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.