CA Patent: CA-3,681
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| Improvements On Wrenches For Inserting Bung Bushes
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Patentee:
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| George B. Cornell (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 20, 1874 |
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Patent Pictures:
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George B. Cornell patent July 20, 1874 edited from CANADIAN PATENT OFFICE RECORD |
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Stan Schulz
Canadian patent no. 3,681 in FLICKR
3,681 in Canadian Patents Database
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Description: |
| A central shaft with multiple "lobes" pushes corresponding plates against the inside of the bushing. This wrench would work equally well to insert or remove such bushings.
Corresponding U.S. patent no. 147,241 was issued February 10, 1874. |
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