| 摘要 |
A bobbin ( 6 ) for a cleaning cloth ( 2 ) in a washing unit ( 1 ) for a cylinder in a printing press is provided with internal, longitudinal or axial projections ( 6 ') for cooperation with corresponding longitudinal grooves ( 7 ') in a shaft ( 7 ) therefore and with embossments over at least a part of its circumferential surface. |
