Web feeding devices
Abstract
Abstract WEB-FEEDING DEVICE, PARTICULARLY FOR A ROTOGRAVURE-PRINTING PRESS HAS MEANS FOR FEEDING WEB WHOSE SPEED OF OPERATION IS REGULATED BY THE POSITION OF A CONTROL ROLLER AROUND WHICH A LOOP OF THE WEB PASSES BETWEEN THE FEED MEANS AND THE INPUT SIDE OF THE PRESS, THE ROLLER BEING MOUNTED ON PIVOTED ARMS FOR ANGULAR MOVEMENT IN RESPONSE TO CHANGES IN LOOP LENGTH AND AN ACTUATING MEMBER BEING NONPOSITIVELY CONNECTED THROUGH A FRICTION PAD TO THE ARMS FOR ANGULAR MOVEMENT THEREWITH BETWEEN FIXED STOPS. MICROSWITCHES ADJACENT EACH STOP POSITION ARE ACTUATED BY THE ACTUATING MEMBER TO INCREASE THE SPEED OF FEED IF THE LOOP LENGTH IS REDUCED BELOW A CERTAIN LEVEL, OR REDUCE SAID SPEED IF THE LENGTH INCREASES BEYOND A SECOND LEVEL.
Inventors
- 👤 William Glover
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |