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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285
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May. 25, 1850
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New and improved plough or subsoil grubber
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Alexander Fleck |
QC, Canada |
"There is a horizontal or principal beam with cross bars to receive the legs, there are also cross bars to receive the out legs. The legs are prepared with a mortise to fit in the ends of cross arms, secured by an iron wedge made moveable. The is an iron pelvis perforated with a circular hole, fitted to a spindle and secured by a pinching screw. There is also a cast iron wheel with an iron scraper to prevent the wheel from lagging. The iron arms, or handles, are secured to the beam by iron nuts and screw bolts, and other necessary apparatus. From the simple construction of said plough, the several parts are easily repaired or re-instated by the most inexperienced mechanic or labourer." |
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6,644
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Oct. 11, 1876
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Improvements on lathes for turning irregular forms
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Alexander Fleck |
ON, Canada |
This patent was extended as patent 13,515. |
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13,515
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Oct. 04, 1881
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Improvements on lathes for turning irregular forms
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Alexander Fleck |
ON, Canada |
This patent constitutes an extension of patent 6,644. |
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513,563
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Jun. 07, 1955
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Paper refiner
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Howard D. Hyman |
ON, Canada |
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