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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46,823
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Mar. 14, 1865
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Improved journal-box
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W. H. Millen |
Boston, MA |
The 1865 Boston Directory lists Matthias J. Rice as a piano-maker and Wm. H. Millen as a woodturner. The 1870 Boston Directory has an ad from J. W. Williams & Co., featuring an illustration of a shaft hanger with the patent dates for this patent and patent 49,591. |
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Improved journal-box
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Matthias J. Rice |
Boston, MA |
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49,591
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Aug. 22, 1865
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Improved journal-box
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W. H. Millen |
Boston, MA |
Improvements to the journal box in patent 36,823. The improvements involve "combining the lower half of the journal box and its oil-reservoir; also, in the peculiar construction of the lower half of the box with reference to oil-passages running from the upper surface thereof through the box and into the oil-reservoir beneath; also, in the combination of a lubricator which conveys oil (by capillary attraction) to the upper side of the box, or to the surface of the shaft on one side adjacent to the cap, with a return-passage on the opposite side, by which the superfluous oil carried over by the rotating shaft runs back into the reservoir."
The 1870 Boston Directory has an ad from J. W. Williams & Co., featuring an illustration of a shaft hanger with the patent dates for this patent and patent 36,823. |
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Improved journal-box
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Matthias J. Rice |
Boston, MA |
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