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US Patent: 973
Annular saw for sawing timber
Grant's annular saw
Patentee:
Robert Grant - Baltimore, MD

USPTO Classifications:
104/2, 83/491

Tool Categories:
woodworking machines : circular saws : annular saws

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. H. Wiltberger
John W. Hubbard

Patent Dates:
Granted: Oct. 08, 1838

Patent Pictures: [ 1 | 2 ]
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Description:
Invention is for a circular saw where all but the rim of the saw is cut away. The saw is driven and guided by beveled rollers. For a description of why someone might want a saw like this, see the description for patent 86,407.

Other annular-saw patents include patent 86,407, patent 108,370, and patent 112,156.

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