| 摘要 |
<p>A pipeline for conveying a viscous or pasty filling material for filling preserve cans from a delivery pump to a filling machine comprises a section (10) in the form of a trombone tube with two parallel segments (12, 14) and a U-shaped arch (16), the arms of which co-operate telescopically with the segments (12, 14). Means (18) act on the U-shaped arch (16) against the pressure of the filling material so as to shorten the section (10).</p> |
