Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 117,020
Improvement in paneling-machines
Dwight F. Walker - Minneapolis, MN

USPTO Classifications:
144/114.1, 144/241, 144/253.1

Tool Categories:
woodworking machines : specialty machines : panel cutting machines


Walker Brothers - Philadelphia, PA

E. A. Walker
D. G. Shillock

Patent Dates:
Granted: Jul. 11, 1871

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Walker Brothers
The "Decisions of the Commissioner of Patents" for 1871 contains a decision regarding a matter of interference between the patent applications of Henry L. Rockey & James H. Woolsey and Dwight F. Walker, for panel machines. Walker was a "practical machinist and pattern-maker" and a "vendor of machines" used by the likes of Rockey & Woolsey, a "manufacturer of panels and other wood-work". Walker claimed to have made his first panel machine in 1868; the cutterheads used a draw-cut, i.e., the knives, affixed to a cutterhead akin to a shaper head, were set at an angle.After a successful test of such a cutterhead, Walker proposed making such a head to Rockey. Rockey instead proposed that Walker make a knife that embodied the draw-cut principle but in a conventional cutterhead. The two men discussed what was involved, Walker made some knives, and Rockey tested them and was pleased with the results. Rockey suggested making a machine that raised both sides of a panel at once; Walker subsequently made such a machine but sold it to another customer. Sometime after that, Walker applied for a patent, and then Rockey and Woolsey also applied for a patent. The decision of the commissioner awarded priority to Walker, "and both case are remanded to the examiner for further examination, in the light of the testimony of this case, with the suggestion that he will probably find that neither application contains anything that is patentable." That decision was handed down on 1871-06-07 and this patent was awarded only 34 days later, which shows that the examiner did find that the machine was patentable.

Copyright © 2002-2018 - DATAMP