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US Patent: 239,863
Method of Adjustment of the Tension of Circular Saws
Patentees:
George F. Simonds - Fitchburg, MA
Daniel Simonds - Fitchburg, MA
Alfred A. Marshall - Fitchburg, MA

USPTO Classifications:
33/202

Tool Categories:
woodworking machines : specialty machines : tool making machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jno. L. Condron
R. K. Evans

Patent Dates:
Applied: Jan. 19, 1881
Granted: Apr. 05, 1881

Patent Pictures:
USPTO pdf tiff
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Description:
Use of a straight edge and a graduated wedge shaped gage to determine tension.

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