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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741,018
|
Oct. 13, 1903
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Rotary engine
|
Herbert M. Dailey |
Chicago, IL |
An article in the December 1905 Canadian Machinery says that Charles Hetherington (co-assignee on this patent) had developed a new rotary steam engine and that Dailey Rotary Engine Co. would be licensing its design to engine manufacturers. This article and a minor follow-up article the following month are the last mentions we can find of the Dailey Rotary Engine Co.—which had been incorporated with $100,000 funding—and it seems that the engine was never sold. |
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121,145
|
Oct. 12, 1909
|
Rotary engine
|
Charles Hetherington |
Chicago, IL |
A prototype of this engine was built for the Dailey Rotary Engine Co., which planned to license the design to others. So far as we can tell, this never happened and the Dailey Rotary Engine Co. disappeared a trace. |