US Patent: 1,167,440
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| Variable-speed gearing
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Patentee:
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| Grant Sipp (exact or similar names) - Paterson, NJ |
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Patent Dates:
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| Granted: |
Jan. 11, 1916 |
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Jeff Joslin
Vintage Machinery entry for Foote-Burt Co.
Vintage Machinery entry for Sipp Machine Co.
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Description: |
| This patent covers a speed-changing mechanism for a sensitive drill that allows quick speed changes over a wide speed range.This patent was seen on a Foote-Burt drilling machine. We assume that Sipp Machine Co. also used it. |
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