| 摘要 |
<p>Improvement in devices for numeration, printing, perforation and cutting in Offset sheet printing machines, in which all operative structures, including the inking machanisms, are combined in a structural unit, shiftable "as a drawer" between the printing machine's shoulders, to the extent necessary for the service of the same device, for performing the functions and respectively for performing the removal to the necessary extent for the service of the machine without the functions and all preparatory operation of the individual operations and of maintenance of the same machine and of the drawer. The invention comprises also the improved "as a drawer" unit as hereinbelow specified.</p> |
