CA Patent: CA-8,306
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| Improvements on drilling machines
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Patentee:
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| Andrew Bell Jardine (exact or similar names) - Hespeler, ON Canada |
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Patent Dates:
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| Applied: |
Jan. 01, 1878 |
| Granted: |
Jan. 21, 1878 |
CIPO Data
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Jeff Joslin
"Vintage Machinery" entry for A. B. Jardine Co.
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Description: |
| "This invention has reference to the construction of machines for drilling holes in metals, and has for its object to overcome a tremulous motion of the drilling mechanism, to provide a take up of frictional wear, and the connection of a self feed motion..."This patent was extended as patent CA-17,070. |
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