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US Patent: 77,606
Improvement in sawing-machines
Patentee:
Jonathan P. Grosvenor (exact or similar names) - Lowell, MA

USPTO Classifications:
83/477.1

Tool Categories:
woodworking machines : circular saws : tablesaws

Assignees:
None

Manufacturer:
Jonathan P. Grosvenor - Lowell, MA

Witnesses:
John E. Crane
S. F. Gates

Patent Dates:
Granted: May 05, 1868

Patent Pictures: [ 1 | 2 ]
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for J. P. Grosvenor.
Description:
This appears to be the first commercially-available tilting-arbor tablesaw, as evidenced by ads in Scientific American and Manufacturer & Builder. See also patent 96,224.

The innovations are a sliding journal-box for the saw-arbor, which moves to adjust the depth of cut; and a miter gauge that flips up into position, or down out of the way.

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