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US Patent: 72,766
Improvement in Bolts for Saw Frames, &c
Saw Bolt
Patentee:
F. Washbourne - New York, NY

USPTO Classifications:
411/397

Tool Categories:
woodworking tools : handsaws : saw nuts

Assignees:
None

Manufacturer:
Henry Disston & Son - Philadelphia, PA
Richardson Bros. - Newark, NJ
J. Flint - St Catharines , ON Canada
Harvey W. Peace - Brooklyn, NY

Witnesses:
W. Hauff
Gustav Berg

Patent Dates:
Granted: Dec. 31, 1867

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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Description:
Head and shank made separately and then brazed together as an improvement over a cast saw bolt. Frequently found on American, and some Canadian, split nut saws and also sometimes observed with the patent stamped on the bolt.

WRT Canadian use, Rob Paul reports "Flint of Rochester opened his saw works in St Catharines Ontario in 1856 (the first saw works in Upper Canada), and sold to R H Smith in 1870. From my collection, R H Smith initially used a J Flint medallion and his own blade etch which included "R H Smith, Successor to J Flint", then an early "R H Smith" flush mounted split-screw medallion has no patent date, and later surface mounted R H Smith medallions have the 1887 Glover Pat date"

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