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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105,540
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Jul. 19, 1870
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Improvement in shingle-machines
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James E. Austin |
Oswego, NY |
The 1887-88 Polk's Michigan State Gazetteer and Business Directory has an ad from Michigan Iron Works, Wm. T. Powers & Son, Proprietors. The ad calls out "Austin's Patent Shingle Machines". |
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347,331
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Aug. 17, 1886
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Machine for cutting veneers
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Edwin Densmore |
Grand Rapids, MI |
This machine was made at Michigan Iron Works, operated by Wm. T. Powers & Son. Judging by how prominently the machine figured in their advertisements, it was quite successful for them. |
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431,139
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Jul. 01, 1890
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Machine for dressing the teeth of gear-wheels
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Willard Curtiss |
Grand Rapids, MI |
This machine is intended for dressing gear teeth in place, rather than for manufacturing gears. The assignees were the owners and operators of the Michigan Iron Works. |
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446,585
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Feb. 17, 1891
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Veneer-cutting machine
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Edwin Densmore |
Coronado, CA |
"In the manufacture of fruit-boxes from veneer it is necessary to score them, so as to enable the sheets to be bent into the required form, thus preventing breaking or uneven bending at the corners. The object of my invention is to provide an automatically-adjustable scoring-knife which will adjust itself to the diminishing periphery of the log, and, further, to provide for an even depth of cut." |