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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304,365
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Sep. 02, 1884
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Hydrocarbon-furnace
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Albert H. Shipman |
Rochester, NY |
"My invention relates to certain improvements in steam-engines, designed more particularly for the production of power for driving sewing-machines, small lathes, and other light machinery..."
This patent was litigated in "Shipman Engine Co. v. (George V.) McLaughlin", and, previous to that, "Shipman Engine Co. v. Rochester Tool Works, 34 Fed. 747". The judge in the earlier case held that Shipman was, in the words of the later judge, "not a pioneer in the art of utilizing liquid fuel as a substitute for coal for producing heat or steam; that he only assumes to have invented certain improvements in hydrocarbon furnaces for use under a steam boiler; that his apparatus consisted of a 'combination of parts, each of which was old and well-known when he took up the subject, several of which had previously been used in such burners to perform in combination the functions they performed in his apparatus, but all of which had never before been combined together in the same apparatus.' He further held that the invention of Shipman resided in his valve or regulator in the steam pipe, by means of which the flow of oil is controlled by the steam suction which is automatically regulated by the valve; that this regulator performed a new function, in that it dispensed with an additional valve in the oil pipe which existed in prior furnaces." |
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20,329
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Oct. 03, 1884
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Hydro-carbon furnace for steam boilers
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Albert Herman Shipman |
Rochester, NY |
This is the Canadian equivalent of US patent 304,365. |