| 摘要 |
For pressing the side cover boards and the back lining onto the coating material, a spring-mounted ring (4) is provided on a roller (3), the outside diameter of said ring corresponding to that of the roller (3). The ring can be driven by the roller (3) at the same circumferential speed and is displaceable via an adjusting device (7-10) from the centricity of the roller (3) towards the back lining (1c). <IMAGE>
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