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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25,733
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Oct. 11, 1859
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Double friction-coupling
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Joshua Hendy |
San Francisco, CA |
This clutch was intended for "operating saw-mill carriages". |
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53,977
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Apr. 17, 1866
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Improvement in saw-mills
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Joshua Hendy |
San Francisco, CA |
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RE5,335
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Mar. 25, 1873
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Double friction-coupling
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Joshua Hendy |
San Francisco, CA |
This clutch was intended for "operating saw-mill carriages". |
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140,414
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Jul. 01, 1873
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Improvement in engine-governors
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Joshua Hendy |
San Francisco, CA |
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RE9,885
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Sep. 27, 1881
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Device for raising tailing from mines
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Wilford Alford Rogers |
Folsom, CA |
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394,344
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Dec. 11, 1888
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Hoisting apparatus
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Francis M. Davis |
Denver, CO |
An abandoned hoist was seen in an isolated part of the Inyo Mountains in Eastern California: "Joshua Hendy Machine Works / S.F. Cal. / The Davis Hoister / Pat'd Dec. 11, 1888". It was advertised as the "Davis Horse-Power Hoisting Whim", a 'whim' being a device to hoist buckets of ore out of a deep mine. This Davis hoisting whim provided single-lever operation and all-iron construction so that it was very simple to operate and unaffected by the weather.
An example of this hoist is on outdoor display at the Angels Camp in Calaveras County, California. |
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RE10,983
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Feb. 05, 1889
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Ore-feeder
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John H. Hendy |
San Francisco, CA |
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Ore-feeder
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Joshua Hendy |
San Francisco, CA |
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