US Patent: 324,759
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Drilling-machine
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Patentee:
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Sterling Elliott (exact or similar names) - Watertown, MA |
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Patent Dates:
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Applied: |
Jul. 07, 1884 |
Granted: |
Aug. 18, 1885 |
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Jeff Joslin Vintage Machinery entry for Sterling Elliott
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Description: |
"In drill-presses as heretofore constructed the wear of the spindle, both in its rotary and longitudinal movements, has been upon the same bearings, which quickly wears the said bearings, and also causes the strain of the driving-belt to interfere with the longitudinal movement of the spindle. In my invention the cone has sleeve-like extensions which enter bearings, and the spindle takes independent bearings in said sleeves." |
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