| 摘要 |
1. Device for radial confinement of an elongated, continuously longitudinally movable product (18) having a cylindrical lateral surface, comprising a flexible sleeve (5) through which the elongated product (18) passes, and compression means acting upon the sleeve (5) in such a way that it closely adapts itself to said cylindrical lateral surface, characterized in that the said compression means comprise two pressurized-fluid circuits, the first of which (16) feeds an annular chamber (12) which surrounds the sleeve (5), and the second (19) annular space (37) comprised between the sleeve (5) and the product (18). |
