US Patent: 4,267,495
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| Machine Speed Controller
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Patentee:
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| Bernard W. Wilterdink (exact or similar names) - Claremont, Sullivan County, NH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 05, 1979 |
| Granted: |
May 12, 1981 |
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Joel Havens
"Vintage Machinery" entry for Cone Automatic Machine Co., Inc.
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Description: |
| Abstract:
To initiate a scheduled speed change at the correct point in the operating cycle of a machine, a speed change command is subjected to a variable delay. Attaining the commanded speed level too early or too late in one cycle results in the speed change command being correspondingly delayed or advanced in the next cycle. In the preferred embodiment, a low point controller is designed to control the high-to-low speed transition in a multiple spindle bar or screw machine to achieve "feed" speed at the optimum point to decrease cycle time while avoiding damage to the cutting tools. |
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