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US Patent: 79,184
Improvement in Swage for Circular Saws
Patentee:
John Gulick Baker - Philadelphia, PA

USPTO Classifications:
76/55

Tool Categories:
woodworking machines : circular saws : annular saws
woodworking machines : specialty machines : tool making machines

Assignees:
Henry Disston - Philadelphia, PA

Manufacturer:
Henry Disston & Sons - Philadelphia, PA

Witnesses:
A. H. Shoemaker
John Cox

Patent Dates:
Granted: Jun. 23, 1868

Patent Pictures:
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"Vintage Machinery" entry for Henry Disston & Sons
Description:
An improvement over Henry Disston's patent, 70423, which was apparently put into use at the Disston works and this patent reflect the experience with the earlier patent in use.

The swage is hung loosely to the bar and its movement is independent but limited by a pin in the bar. Disston's patent had the swage secured to the bar when used.

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