US3078747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of metal sheet or strip
Assignee: British Aluminum Co Ltd
•
Filing: 1958-09-15
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Granted: 1963-02-26
•
Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Pearson William Kenne Jamieson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:45
CPC Classifications
B; B21; B21B; B21B38/00; B21B38/02; B21B37/00; B21B37/28; B21D; B21D1/00; B21D1/02; B21B27/00; B21B27/06; B21B27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A ROLLING MILL, IN COMBINATION, A PAIR OF COOPERATING ROLLS FOR PASSING THROUGH THE BITE THEREOF A METAL STRIP; AT LEAST TWO ROLLERS CONTACTING THE SURFACE OF THE STRIP ADVANCING FROM THE BITE OF SAID ROLLS, SAID ROLLERS CONTACTING SAID SURFACE OF SAID STRIP AT SPACED LOCATIONS THEREON AND BEING FRICTIONALLY DRIVEN BY ADVANCEMENT OF SAID STRIP FROM SAID BITE OF SAID ROLLS; A SYNCHRO-TRANSMITTER DRIVEN BY ONE OF SAID ROLLERS; A SYNCHRO-DIFFERENTIAL TRANSMITTER DRIVEN BY THE OTHER OF SAID ROLLERS; MEANS ELECTRICALLY CONNECTING SAID TRANSMITTERS TO PROVIDE THEREFROM A THREEPHASE ELECTRICAL SIGNAL WITH ELECTRICAL ROTATION WHICH IS A FUNCTION OF THE DIFFERENCE IN THE ANGULAR VELOCITIES IMPARTED TO SAID ROLLERS; AND MEANS CONTROLLED BY SAID THREEPHASE ELECTRICAL SIGNAL FOR MODIFYING THE ACTION OF SAID PAIR OF COOPERATING ROLLS FOR MAINTAINING CONSTANT THE ANGULAR VELOCITY IMPARTED TO ONE OF SAID ROLLERS RELATIVE TO THE ANGULAR VELOCITY IMPARTED TO THE OTHER OF SAID ROLLERS.
Claim 2
Dependent Claim
154 words
IN A ROLLING MILL, IN COMBINATION, A PAIR OF COOPERATING ROLLS FOR PASSING THROUGH THE BITE THEREOF A METAL STRIP; AT LEAST TWO ROLLERS CONTACTING THE SURFACE OF THE STRIP ADVANCING FROM THE BITE OF SAID ROLLS, SAID ROLLERS CONTACTING SAID SURFACE OF SAID STRIP AT SPACED LOCATIONS THEREON AND BEING FRICTIONALLY DRIVEN BY ADVANCEMENT OF SAID STRIP FROM SAID BITE OF SAID ROLLS; A SYNCHRO-TRANSMITTER DRIVEN BY ONE OF SAID ROLLERS; A SYNCHRO-DIFFERENTIAL TRANSMITTER DRIVEN BY THE OTHER OF SAID ROLLERS; MEANS ELECTRICALLY CONNECTING SAID TRANSMITTERS TO PROVIDE THEREFROM A THREEPHASE ELECTRICAL SIGNAL WITH ELECTRICAL ROTATION WHICH IS A FUNCTION OF THE DIFFERENCE IN THE ANGULAR VELOCITIES IMPARTED TO SAID ROLLERS; AND MEANS CONTROLLED BY SAID THREEPHASE ELECTRICAL SIGNAL FOR MODIFYING THE ACTION OF SAID PAIR OF COOPERATING ROLLS FOR MAINTAINING CONSTANT THE ANGULAR VELOCITY IMPARTED TO ONE OF SAID ROLLERS RELATIVE TO THE ANGULAR VELOCITY IMPARTED TO THE OTHER OF SAID ROLLERS.
References Cited (Backward Citations)
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Cited
US2292535A
Cited
US2297812A
Cited
US2601792A
Cited
US2851911A
Cited
US2811059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |