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US Patent: 1,314,291
Sawing appliance
Patentee:
John D. Wallace (exact or similar names) - Chicago, IL

USPTO Classifications:
144/114.1, 29/DIG.06, 30/391, 83/473, 83/478

Tool Categories:
woodworking machines : circular saws : tablesaws
woodworking machines : woodworking machine parts or accessories : woodworking machine safety guards

Assignees:
J. D. Wallace & Co. - Chicago, IL

Manufacturer:
J. D. Wallace & Co. - Chicago, IL
Wappat Gear Works - Pittsburgh, PA
Fred W. Wappat - Mayville, NY

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 12, 1918
Granted: Aug. 26, 1919

Patent Pictures: [ 1 | 2 | 3 ]
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Vintage Machinery entry for J. D. Wallace & Co.
Vintage Machinery entry for Fred W. Wappat
Description:
There are two major innovations: a tilting-arbor mechanism and an improved retractable guard; other improvements are a cutout in the guard so the operator can see the cut line, and a means of clearing sawdust from the cut line.

J. D. Wallace & Co. used this patent in what was probably the first commercially successful small tilting-arbor tablesaw (see patent 77,606 for Jonathan Grosvenor's much earlier but larger tilting-arbor saw). The blade-guard portion of this patent was licensed by Wappat Gear Works for their handheld circular saws.

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