US Patent: 408,269
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Electric drill
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Patentee:
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Imle E. Storey (exact or similar names) - Boulder, CO |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Aug. 01, 1888 |
Granted: |
Aug. 06, 1889 |
USPTO (New site tip) Google Patents
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Jeff Joslin Vintage Machinery entry for Storey Motor & Tool Co.
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Description: |
The innovations are a system for supplying water or other lubricant to the cutting tool, a main frame supporting a sliding frame that holds the motor and cutter, and an arrangement of friction disks and gears that push the sliding frame forward; in addition the entire mechanism had provisions to keep out water and dust. So far as we know, this design was not manufactured, but less than a decade later the inventor would establish a series of companies to manufacture his motors and drilling machines. |
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