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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1,328,366
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Jan. 20, 1920
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Flexible coupling
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Ellis E. Brown |
Reading, PA |
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1,340,874
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May. 25, 1920
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Folding net-frame
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Ellis E. Brown |
Reading, PA |
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1,455,425
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May. 15, 1923
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Flexible coupling
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Ellis E. Brown |
Reading, PA |
Improvement to the flexible coupling of patent 1,328,366 to make it better able to handle "excessive strains" and shocks, especially when starting or stopping. |
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1,769,107
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Jul. 01, 1930
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Flexible coupling
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Ellis E. Brown |
Reading, PA |
Improvements to "flexible shaft couplings of the Oldham type and more particularly to improvements in the impeller or driving element of the coupling." The primary goal of the changes is to reduce cost.
An Oldham coupling is used to connect two shafts that may not be perfectly in line. Each shaft end is fitted with a disc having a pin facing outward at its periphery, and in between the two discs is a middle disc with slots on either side, the slots at 90 degrees to one another. Each slot accepts the pin protruding from the disc on that side. This clever mechanism was invented by John Oldham of Dublin, either in the course of designing paddle-wheel steamships, or in his work designing printing machinery for the Bank of Ireland. Oldham obtained three patents for his steamship designs but none of them covered or described the coupling mechanism. |
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1,935,390
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Nov. 14, 1933
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Flexible coupling
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Ellis E. Brown |
Reading, PA |
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