US Patent: 3,890,116
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Grinding Machine
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Patentee:
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Edward G. Robillard (exact or similar names) - Cherry Valley, Worcester County, MA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 03, 1973 |
Granted: |
Jun. 17, 1975 |
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Joel Havens "Vintage Machinery" entry for Heald Machine Co. "Vintage Machinery" entry for Cincinnati Milling Machine Co.
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Description: |
Abstract:
A grinding machine with a stepping motor for feed movements, with a slow pulse generator and a fast pulse generator, and with a control means for introducing pulse from the fast generator during one part of the grinding cycle and from the slow generator during another portion of the grinding cycle. |
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