Multiple feed cylinder press
US5372066A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Aug 11, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F15/0827
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing press feeder capable of sheet feeding from the rear, sheet feeding from the front, or stream feeding from the rear, using tracks above a stock support for the feeder, the sheet feeder head being movably mounted on these tracks, and a movable drive connection from a power source to the sheet feeder head for driving of the sheet pickup advancers in the different head positions. The sheet feeder has first and second alternate drive mechanisms, on opposite ends of the transverse drive shaft, the first drive mechanism having a variable speed drive for sheet feeding individual sheets and slowing feed of each sheet as the sheet approaches the print cylinder, and the second drive mechanism having a constant speed drive for stream feeding overlapping sheets to the print cylinder. The press has nonprint lift cylinders engaging the squeegee mount and actuable to lift the squeegee out of print position, but still within the stencil screen frame, to allow the stencil screen frame to cycle without printing. The stencil screen carriage is connected to a drive shaft to be reciprocated, a pinion gear on the drive shaft engaging an elongated gear rack held by a pivotal bearing support, so…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.