Device for supplying webs of wrapping material to a cigarette making machine of the two rod type
A device for supplying webs of wrapping material to a cigarette making machine of the two rod type is constituted by a device for cutting a web of wrapping material into a first and a second web of identical width, and by deviation devices associated with each of the webs for the displacement thereof in a direction crosswise to that in which the webs move forward. Connected to the first and second web are detector devices provided for operating, through circuit elements, a motor for each of the three deviation devices in such a way as to cancel, moment by moment, any possible differences in width between the first web and the second web and any deflection thereof with respect to a given sliding position.
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Claims
4. The device according to claim 2, wherein said detector means comprise photosensitive means constituted by image scanning sensors belonging to CCD array circuits.
5. The device according to claim 2, wherein said detector means comprise photosensitive means constituted by two sets of phototransistors.
| 2738729 | March 1956 | Brooks |
| 3232547 | February 1966 | Thiede et al. |
| 3599849 | August 1971 | Callan |
| 3719114 | March 1973 | Vischulis |
| 3752377 | August 1973 | Knapp |
| 4049213 | September 20, 1977 | Hank et al. |
| 4204619 | May 27, 1980 | Damour |
| 4336812 | June 29, 1982 | Seragnoli |
| 4383633 | May 17, 1983 | Seragnoli |
| 4386273 | May 31, 1983 | Jones |
| 4477006 | October 16, 1984 | Sharp |
| 4572417 | February 25, 1986 | Joseph et al. |
| 0066527 | December 1982 | EPX |
| 2240779 | March 1975 | FRX |
| 2341621 | March 1975 | DEX |
| 958047 | September 1982 | SUX |
Type: Grant
Filed: Mar 6, 1995
Date of Patent: Mar 23, 1999
Assignee: G.D. Societa per Azioni (Bologna)
Inventors: Riccardo Mattei (Bologna), Armando Neri (Bologna)
Primary Examiner: Rinaldi I. Rada
Assistant Examiner: Raymond D. Woods
Law Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 8/400,010
International Classification: B23Q 1522;
