Transfer drum for printing presses with devices for gripping the leading and trailing edges of a sheet which is being imprinted
US4202268A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1976 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | Jun 25, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F21/108
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Transfer drum for printing presses through which a sheet to be imprinted passes, includes a shaft, a first and second row of sheet-supporting segments disposed in comb-like fashion along the periphery of the drum, devices for gripping, respectively, the trailing and leading edges of a sheet, one of the rows of segments being rotatably mounted on the shaft together with one of the gripping devices, and the other of the rows of segments being fixedly mounted on the shaft together with other of the gripping devices, the rows of segments being rotatable relative to one another, each of the gripping devices extending rigidly over the entire width of the drum and being secured to the respective row of segments in channels formed in the drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.