Paper and cardboard printing machine - has pressure device above roller mounted on shaft supported by double acting rams

摘要

The printing machine is particularly for paper and cardboard sheets, having pressure device thrust against a printing roller in bearings. The device is situated above the roller, and has a shaft protruding from both ends, mounted on the piston rods of double-acting rams in bearings. Guides secured to the bearings and close to them on the outside fit round guide bars. A throttle regulates the discharge of the medium under pressure as the device sinks under gravity.