Control systems for machine tools
Abstract
Abstract A PLUG BOARD CONTROL SYSTEM FOR A MACHINE TOOL, INCLUDING A PLUG BOARD HAVING A PLURALITY OF COLUMNS WITH EACH COLUMN HAVING A PLURALITY OF PLUG SOCKETS. A GROUP OF PLUG SOCKETS OF ONE COLUMN TOGETHER WITH THE CORRESPONDING PLUG SOCKETS IN THE OTHER COLUMNS WHEN CONTAINING PLUGS CAUSE OPERATION OF PART OF THE MACHINE TOOL IN A PARTICULAR WAY BY WAY OF CONTROL MEANS RESPECTIVELY AND SWITCH MEANS IS PROVIDED TO SCAN THE GROUP OF PLUG SOCKETS OF ONE COLUMN IN TURN THE SWITCH MEANS SERVES TO COMPLETE AN ELECTRIC SUPPLY CIRCUIT TO THE CONTROL MEANS WHEN THE PLUG SOCKET ASSOCIATED THERWITH CONTAINS A PLUG SAID SWITCH MEANS BEING ARRANGED TO STOP SCANNING THE PLUG SOCKETS WHEN IT REACHES A PLUG SOCKET CONTAINING A PLUG TO CONTINUE SCANNING UPON RECEIPT OF A SIGNAL FROM THE MACHINE TOOL THAT AN OPERATION HAS BEEN COMPLETED
Inventors
- 👤 Zsigmond Markgraf
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |