US Patent: 3,014,390
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| Control Equipment for Copying Machine Tools
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Patentees:
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| Aage Garde (exact or similar names) - Västerås, Västmanland County, Västmanland Province, Sweden |
| Erik Persson (exact or similar names) - Västerås, Västmanland County, Västmanland Province, Sweden |
| Henning Schiott (exact or similar names) - Västerås, Västmanland County,, Västmanland Province, Sweden |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 28, 1954 |
| Granted: |
Dec. 26, 1961 |
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Joel Havens
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Description: |
| (English translation: General Swedish Electrical Limited Company; Swedish abbreviation: ASEA)
Claims priority, application in Sweden 02 Jan., 1954.
Claim:
Control equipment for copying machine tool, said machine tool comprising a cutting tool and a pattern reproducing the desired work-piece, said equipment comprising an electrical feeler member influencing the movement of said cutting tool, at least in one of the directions in which it shall be moved, by a control signal upon deviation of the cutting tool from its desired position in respect to the pattern, a first servo-control means with integral action and at least one further servo-control means with integral action, the output of said feeler member means being operatively connected with the input of said first servo-control means for altering its speed upon a control signal from said feeler member, and the output of said first servo-control means being operatively connected to the input of said further servo-control means for altering its speed upon a change in position of said first servo-control means, and the output of said further servo-control means being operatively connected to said cutting tool for moving the cutting tool dependent on the position of said further servo-control means. |
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