| 摘要 |
PCT No. PCT/SE78/00104 Sec. 371 Date Aug. 8, 1979 Sec. 102(e) Date Aug. 8, 1979 PCT Filed Dec. 27, 1978 PCT Pub. No. WO79/00643 PCT Pub. Date Sep. 6, 1979.In a paper machine headbox a profile bar (15) is mounted on a top slice lip (12). The profile bar is locally displaceable in the vertical direction by means of a plurality of adjusting assemblies (16) distributed along the top slice lip. Each adjustment assembly comprises an electrical level sensor (21) in the form of a differential transformer, the core (23) of which is affixed to the profile bar, while the coil (22) of the differential transformer is affixed to the top slice lip. The differential transformer is electrically connected to an indicator (24).
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