| 摘要 |
<p>The blower arrangement for detachment of a metallized belt and braking of a sheet, situated between the platens of a press in a machine for printing sheet elements, comprises a bar arranged near the exit of the press in which is provided a series of nozzles (77, 79) in the form of flattened parallelepipeds. Each of these nozzles is sealed by a translationally mobile cylindrical valve in a manner perpendicular to the air supply duct. This valve comprises a communicating passage. The plane of the jets coming from these nozzles is directed approximately horizontally between the metallized belt and the sheet.</p> |
