US Patent: 63,487 - Improved Mode of Manufacturing Saw Blades


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US Patent: 63,487

Improved Mode of Manufacturing Saw Blades

Patentee:

Henry Disston (exact or similar names) - Philadelphia, PA

USPTO Classifications:

148/319, 148/905, 407/119

Tool Categories:

woodworking machines : specialty woodworking machines : tool making machines

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

John White

W. J. R. Delany

Patent Dates:
Granted:	Apr. 02, 1867

Patent Pictures:

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Description:

Saw blade is composed of tough wrought iron, or homogeneous or Bessemer steel, and having a hard carbonized exterior surface. Steel is placed in a red hot bath of Turk's Island salt and prussage of potash in 3:1 ratio and then quenched when appropriate.