Straightening machine for structural workpieces
Abstract
Abstract THE DISCLOSURE RELATES TO A STRAIGHTENING MACHINE WHEREIN THERE IS PROVIDED A NUMBER OF INDEPENDENT ROLLER ASSEMBLIES SO ARRANGED THAT THEY FORM SETS OF THREE ROLERS BETWEEN WHICH THE PRODUCT TO BE STRAIGHTENED IS FED. EACH ROLLER ASSEMBLY IS PROVIDED WITH A FRAME AND WITH REFERENCE TO THE UPPER ASSEMBLIES, THERE IS PROVIDED A GEAR DRIVING ARRANGEMENT FOR THE ROLLERS THEREOF. EACH GEAR DRIVING ARRANGEMENT IS CONSTRUCTED AS A UNITARY ASSEMBLY ADAPTED TO BE QUICKLY REMOVED FROM AND INSERTED INTO THE FRAMES AS A UNIT. POSITIONING MEANS ARE PROVIDED FOR THE INDIVIDUAL ROLLER ASSEMBLIES, WHICH MEANS ALLOW THE ASSEMBLIES TO BE MOVED PARALLEL TO THE PASS LINE WITHOUT DISTURBING THEIR PREDETERMINED SPACED RELATIONSHIP. ALSO DISCLOSED IS A LOCKING MEANS FOR MAINTAINING THE ROLLER ASSEMBLIES IN THEIR PREDETERMINED SPACED RELATIONSHIP AFTER IT HAS BEEN ESTABLISHED. THERE IS DISCLOSED, IN ADDITION, A PRESSURE TAKE-UP MECHANISM ASSOCIATED WITH EACH FRAME OF THE UPPER ROLLER ASSEMBLIES FOR ELIMINATING ANY CLEARANCE BETWEEN THE FRAMES AND THE HOUSING.
Inventors
- 👤 Paul Frederick Adams
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |