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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67,274
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May. 10, 1900
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Automobile
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John Campbell McLachlan |
ON, Canada |
This patent covers the friction drive mechanism for the McLachlan automobile, one of only two automobile designs made in Canada before 1900. The design was a failure and it seems that only one car was ever built. The weak point was the friction drive, which used up too much of the available engine power. |
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87,760
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Jun. 14, 1904
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Gas and steam engine and heater
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John Campbell McLachlan |
ON, Canada |
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148,160
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May. 27, 1913
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Rotary valve for engines
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William Ralph Ballantine |
ON, Canada |
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Rotary valve for engines
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John Campbell McLachlan |
ON, Canada |
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