5.
    发明专利
    未知

    公开(公告)号:DE2942950A1

    公开(公告)日:1981-05-07

    申请号:DE2942950

    申请日:1979-10-24

    Applicant: BASF AG

    Abstract: The generation of tape tension, based on the capacity for elastic flow of elastomeric incompressible layers, in a tape transport apparatus employing at least one capstan in contact with supply and take-up reels of tape is accomplished by producing a higher compressive force at the point of contact between the take-up reel and the resiliently deformable peripheral portion of the capstan than at the point of contact between the supply reel and the capstan. The difference in compressive forces is brought about by an additional force which is produced by means of a drivable rotating body and is transmitted to the tape reel carriers by means of a cable which is guided over this rotating body.

    Textured synthetic yarns mfre
    6.
    发明专利

    公开(公告)号:DE2065751A1

    公开(公告)日:1975-07-31

    申请号:DE2065751

    申请日:1970-02-11

    Applicant: BASF AG

    Abstract: Mfe. of textured yarns from linear, high m.w. synthetic material, by passing them through canal shaped treatment zones in which they are subjected to the action of a stream of heated fluid, pref. a gas, with the improvement whereby the exposure to the turbulent stream of fluid is brought about between a feed inlet channel and a guide channel in which the yarns are heated to a temp. causing re-orientation processes, and are brought by the fluid stream via the guide channel and a sudden enlargement causing a drop in pressure, into and through a treatment zone of slightly tapering conical section where eddying of the fluid stream with the ambient air occurs, bringing about a shapr drop of temp., the length of the apertures as well as the distances between them and the guide channel being adjustable, with response amplification, so that a star-shaped compression of the yarns results automatically without plugging, with continuous movement in the zone of lowered temp., which has a stabilising effect.

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