US Patent: 1,668,647
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| Feed mechanism for drilling machines
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Patentee:
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| Albert M. Johnson (exact or similar names) - Rockford, IL |
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Patent Dates:
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| Applied: |
Jan. 24, 1925 |
| Granted: |
May 08, 1928 |
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Jeff Joslin
Vintage Machinery entry for Barnes Drill Co.
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Description: |
| The innovation is a compact arrangement of spur gears that provide the necessary slow-speed high-torque drive needed for feeding a drill press. Previous mechanisms tended to rely on a worm-gear reduction which were prone to excessive wear in this application. |
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