If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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1,716,412
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Jun. 11, 1929
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Garment clasp
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Arthur W. Beaman |
Worcester, MA |
Of interest because the inventor also patented and manufactured a cutter grinder. |
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1,767,272
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Jun. 24, 1930
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Knife-grinder bearing
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Arthur W. Beaman |
Worcester, MA |
Improvements to patent 1,085,876. This patent has been seen on a jointer and planer knife grinder that sharpens the knives in situ.
"The principal object of this invention are to provide anti-friction bearings for the grinding wheel spindle to produce a greater durability and smooth running free from vibration, thereby giving a keener edge to the knives ground; to provide a sleeve of increased diameter for receiving the bearings, and to provide means to automatically take up slack between the bearings." |