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US Patent: 57,046
Improvement in sawing-machines
Patentee:
Salmon W. Putnam - Fitchburg, MA

USPTO Classifications:
83/471.1

Tool Categories:
woodworking machines : circular saws : tablesaws

Assignees:
Putnam Machine Co. - Fitchburg, MA

Manufacturer:
Putnam Machine Co. - Fitchburg, MA

Witnesses:
Charles Burleigh
Louis D. Bartlett

Patent Dates:
Granted: Aug. 07, 1866

Patent Pictures:
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"Vintage Machinery" entry for Putnam Machine Co.
Description:
An improvement on C. P. S. Wardwell saw in patent 16,814. Like Wardwell's saw, Putnam's saw has two arbors mounted on a swinging frame so that one blade can be raised above the table while the other is simultaneously lowered below the table. Putnam's improvement is that the sawblades come up in the same place in the table.

There is no evidence that Putnam Machine Co., or anyone else, made use of this invention. The earliest known Putnam Machine Co. catalog is from 1871, and the only two woodworking machines in it are a Woodworth planer and a clapboard planer. There is some chance that Rollstone Machine Works used the patent, but we have never seen a mention of it in Rollstone ads. If you have ever observed a Rollstone Wardwell's saw bench where the two blades come through the same spot in the top, please let us know.

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