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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623,140
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Apr. 18, 1899
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Drilling-machine
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Henry Havelock Cummings |
Malden, MA |
The inventor would be granted over 120 patents during his lifetime. He established a machine shop in 1881, which in 1905 would incorporate as the Cummings Machine Works "to operate a foundry and machine shop. Henry H. Cummings is president and treasurer and the capital stock is $25,000." (From April 1905 The Foundry, page 101.)
The invention is a drill press that automatically adjusts its speed to the diameter of the drill or cutter. The power downfeed speed is continuously variable under control of the operator. The speed-change mechanism is adapted from the inventor's own patent 529,713. |
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1,463,116
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Jul. 24, 1923
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Sewing machine attachment for spiral stitching
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Analdo M. English |
Brookline, MA |
The assignee also made an unusual annular saw for tree-felling. |
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2,490,255
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Dec. 06, 1949
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Portable power actuated rim-driven annular saw
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Henry A. Chase |
Newtonville, MA |
This unusual saw was fairly popular at one time; it was sold as the "Sally Saw" by Cummings Machine Works. |