| 摘要 |
<p>The improvement to DT 2105350 describing sinous travelling thread tube heaters, comprises placing the tubes in a heating medium (e.g. air or steam, closed or open) circuit with a fan extracting the medium from the outlet region of the tube, which has a rotary thread forwarding member guiding the thread to an outlet slit, the medium entering the hollow rotary member through perforations too small for the thread.</p> |
