Inhibiting noise in sheet spreaders

Details Inhibiting noise in sheet spreaders Inhibiting noise in sheet spreaders

B - Operations, Transporting

65

H

271/72

B65H 35/02 (2006.01) B65H 23/025 (2006.01)

Patent

CA 1097383

ABSTRACT OF THE DISCLOSURE Objectionable noise is inhibited in sheet spreaders of the type wherein strips of a slit travelling web are laterally separated by running the strips over spaced, bowed hollow spreader bars, frictional resistance being alleviated by floating the strips on a layer of air covering the areas of the bars wrapped by the strips. Tendency toward high frequency vibration and thus noise experienced in high spaced operation is inhibited by ventilation in the tangency angles between the bars and the running strips. -i-

297745

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