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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183,506,850
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Jun. 11, 1835
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Tools or apparatus for boring metals and other materials; machinery for boring metals; machinery for planing and cutting metals and other materials
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Joseph Whitworth |
, England |
After leaving the employ of machine-tool pioneer Henry Maudslay, Joseph Whitworth worked briefly for Holtzapfell and for Joseph Clement, and then, in 1833, returned to Manchester and opened his own works. "He was probably the first to specialise in the manufacturing of machine parts, most other engineers made machines for their own use which were not for sale." Manchester was a terminal for the first major public railway and also had a large textile industry. Whitworth supplied tools and machinery to the rail and textile industries, especially machine tools—machines for making machines. Whitworth was instrumental in moving from 1/16 inch precision to 1/10000 inch precision, a shift that happened between 1830 and 1850. In 1841 he developed a screw-thread standard that became very widely used in Britain and is named after him. In 1858, Whitworth reportedly built a machine capable of measuring to better than a millionth of an inch. |
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183,707,332
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Mar. 28, 1837
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Tools or apparatus for boring metals and other materials; machinery for boring metals; machinery for planing and cutting metals and other materials
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Joseph Whitworth |
, England |
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183,707,441
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Oct. 05, 1837
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Tools or apparatus for boring metals and other materials; machinery for boring metals; machinery, tools or apparatus for planing and cutting metals and other materials
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Joseph Whitworth |
, England |
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183,908,188
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Aug. 07, 1839
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Machinery for planing and cutting metals or other substances; machinery for drilling metals
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Joseph Whitworth |
, England |
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184,008,705
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Nov. 17, 1840
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Machinery or apparatus for cutting and shaping metals or other substances
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Joseph Whitworth |
, England |
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