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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255,418
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Mar. 28, 1882
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Self-oiling pulley
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Charles H. Cowdrey |
Fitchburg, MA |
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273,227
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Feb. 27, 1883
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Lathe
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Charles H. Cowdrey |
Fitchburg, MA |
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474,856
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May. 17, 1892
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Back-knife gage-lathe
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Charles Fred Edward Peterlein |
Binghamton, NY |
"This invention relates to improvements in the ordinary back-knife gage-lathes—such as are, for example, made and sold by the S. C. Forsaith Machine Co., of Manchester, New Hampshire. Similar well-known back-knife gage-lathes are shown and described in Letters Patent of the United States to Baxter D. Whitney, No. 29,534, dated August 7, 1860, and to Loring Atwood and Edward Ripley, No. 99,810, dated February 15,1870." This lathe was featured in an ad in the March 1906 issue of the Wood Worker. The ad was from C. H. Cowdrey Machine Works of Fitchburg. |