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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17,604
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Jun. 16, 1857
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Faucet
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David N. B. Coffin Jr. |
Newton Center, MA |
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58,069
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Sep. 18, 1866
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Improved capstan-windlass
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Zebulon E. Coffin |
Newton, MA |
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80,143
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Jul. 21, 1868
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Improvement in hydrants
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Zebulon E. Coffin |
Boston, MA |
In 1879 the president of the Boston Machine Co. was William E. Coffin.
Birdsill Holly is often credited as the inventor of the modern fire hydrant (patent 94,749) but this earlier patent, to Zebulon Erastus Coffin, incorporates just about every feature of a modern hydrant. |
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236,780
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Jan. 18, 1881
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Stop-valve
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Zebulon Erastus Coffin |
Boston, MA |
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243,691
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Jul. 05, 1881
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Hydrant-valve
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Zebulon E. Coffin |
Newton, MA |
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283,376
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Aug. 21, 1883
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Machine for turning pipe-flanges
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Zebulon Erastus Coffin |
Newton, MA |
"In ordinary machines for this purpose it is not practicable to face the flanges at both ends of the pipe at the same time and operation. The nature of my improvements and invention relates to... simultaneous facing of both ends or flanges of the pipe..." |
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330,377
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Nov. 17, 1885
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Hydrant
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Zebulon Erastus Coffin |
Boston, MA |
This patent was very successful for its manufacturer, the Coffin Valve Co. The inventor's earlier patent 80,143 was also successful for its manufacturer, the Boston Machine Co. In between those two patents was Zebulon E. Coffin's patent 243,691, which seems to have been forgotten. |