US3171579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet guiding and width control apparatus
Assignee: Mount Hope Machinery Ltd
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Filing: 1963-08-22
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Granted: 1965-03-02
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Expires: 1983-08-22
Abstract
No abstract record available.
Inventors
- 👤 John D Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:06
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/032; B65H23/038; B65H23/022; B65H23/025; B65H23/0258; B65H2511/00; B65H2511/10; B65H2511/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
SHEET GUIDING AND WIDTH CONTROL APPARATUS FOR ACTING ON A TRAVELING SHEET, COMPRISING: A FRAME; A PAIR OF CURVED ROLLS EACH HAVING AN AXIS OF SYMMETRY LONGITUDINALLY CURVED IN A PLANE, EACH OF SAID ROLLS BEING MOUNTED IN SAID FRAME FOR ANGULAR ADJUSTMENT OF THE CURVATURE THEREOF ABOUT A RECTILINEAR AXIS SUBTENDING ITS CURVED CENTRAL AXIS, THE RECTILINEAR AXES OF SAID ROLLS BEING PARALLEL; SAID ROLLS BEING DISPOSED TRANSVERSELY OF THE DIRECTION OF SHEET TRAVEL FOR SERIAL WRAPPING OF SAID SHEET ABOUT EQUAL ARCUATE SEGMENTS OF SAID ROLLS; SAID FRAME BEING SUPPORTED FOR ANGULAR ADJUSTMENT ABOUT AN AXIS TO MOVE SAID ROLLS TRANSVERSELY OF THE DIRECTION OF SHEET TRAVEL AND TO TILT SAID ROLLS FOR GUIDING SAID TRAVELING SHEET, WHILE MAINTAINING EQUAL PATH LENGTHS OF SHEET TRAVEL IN THE CENTRAL AND EDGE PORTIONS OF SAID SHEET THROUGH SAID APPARATUS; AND LINKAGE MEANS DRIVINGLY INTERCONNECTING SAID ROLLS, TOGETHER WITH MOTIVE MEANS CONSTRUCTED AND ARRANGED FOR ACTUATING SAID LINKAGE MEANS FOR EQUI-ANGULAR ADJUSTMENT OF SAID ROLLS TO MAINTAIN SAID CURVATURES THEREOF IN PARALLEL RELATION AND BOWED IN THE SAME DIRECTION, SUCH THAT SAID ROLLS MAY BE ANGULARLY ADJUSTED, INDEPENDENTLY OF ANGULAR ADJUSTMENT OF SAID FRAME, TO CONTROL THE WIDTH OF THE TRAVELING SHEET WHILE MAINTAINING EQUAL PATH LENGTHS OF THE SHEET TRAVEL IN THE CENTRAL AND EDGE PORTIONS OF SAID SHEET THROUGH SAID APPARATUS.
Claim 2
Dependent Claim
222 words
SHEET GUIDING AND WIDTH CONTROL APPARATUS FOR ACTING ON A TRAVELING SHEET, COMPRISING: A FRAME; A PAIR OF CURVED ROLLS EACH HAVING AN AXIS OF SYMMETRY LONGITUDINALLY CURVED IN A PLANE, EACH OF SAID ROLLS BEING MOUNTED IN SAID FRAME FOR ANGULAR ADJUSTMENT OF THE CURVATURE THEREOF ABOUT A RECTILINEAR AXIS SUBTENDING ITS CURVED CENTRAL AXIS, THE RECTILINEAR AXES OF SAID ROLLS BEING PARALLEL; SAID ROLLS BEING DISPOSED TRANSVERSELY OF THE DIRECTION OF SHEET TRAVEL FOR SERIAL WRAPPING OF SAID SHEET ABOUT EQUAL ARCUATE SEGMENTS OF SAID ROLLS; SAID FRAME BEING SUPPORTED FOR ANGULAR ADJUSTMENT ABOUT AN AXIS TO MOVE SAID ROLLS TRANSVERSELY OF THE DIRECTION OF SHEET TRAVEL AND TO TILT SAID ROLLS FOR GUIDING SAID TRAVELING SHEET, WHILE MAINTAINING EQUAL PATH LENGTHS OF SHEET TRAVEL IN THE CENTRAL AND EDGE PORTIONS OF SAID SHEET THROUGH SAID APPARATUS; AND LINKAGE MEANS DRIVINGLY INTERCONNECTING SAID ROLLS, TOGETHER WITH MOTIVE MEANS CONSTRUCTED AND ARRANGED FOR ACTUATING SAID LINKAGE MEANS FOR EQUI-ANGULAR ADJUSTMENT OF SAID ROLLS TO MAINTAIN SAID CURVATURES THEREOF IN PARALLEL RELATION AND BOWED IN THE SAME DIRECTION, SUCH THAT SAID ROLLS MAY BE ANGULARLY ADJUSTED, INDEPENDENTLY OF ANGULAR ADJUSTMENT OF SAID FRAME, TO CONTROL THE WIDTH OF THE TRAVELING SHEET WHILE MAINTAINING EQUAL PATH LENGTHS OF THE SHEET TRAVEL IN THE CENTRAL AND EDGE PORTIONS OF SAID SHEET THROUGH SAID APPARATUS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |