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US Patent: 152,347
Improvement in Handsaws
Skew Back Handsaw
Patentee:
Henry Disston (exact or similar names) - Philadelphia, PA

USPTO Classifications:
30/166.3

Tool Categories:
woodworking tools : handsaws

Assignees:
None

Manufacturer:
Henry Disston & Sons - Philadelphia, PA

Witnesses:
Wm. H. Wright
C. T. Shoemaker

Patent Dates:
Applied: Feb. 23, 1874
Granted: Jun. 23, 1874

Patent Pictures:
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"Vintage Machinery" entry for Henry Disston & Sons
Description:
Skew back handsaw. Changing the back from straight to skew reduces vibration of the saw and it makes the saw less likely to jar the operator causing kinks.

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