Advancing material of indeterminate length – With material-responsive control means – To position material laterally
Patent
1977-12-02
1979-05-22
Schacher, Richard A.
Advancing material of indeterminate length
With material-responsive control means
To position material laterally
226198, 226199, B65H 2526
Patent
active
041554973
ABSTRACT:
To improve smoothness of tape transport in a spiral path over a guide cylinder, the guide rollers located immediately adjacent the guide cylinder, and journalled to rotate about an axis inclined with respect to the axis of the guide cylinder, can rotate about respective axes of rotation which are variable with respect to the axis of inclination defined by the bearing means journalling the guide rollers to permit self-balancing and self-adjustment of the spiral path of the tape about the cylinder during operation of the apparatus in dependence on the forces applied by the tape on the immediately adjacent rollers. Variation of the axis of rotation can be obtained by providing a central bearing for the roller about its axis of rotation, the bearing having a slight amount of play, and being offset with respect to the center of the tape passing around the roller to direct the edge of the tape against a guide surface and provide a fixed bias force on the bearing.
REFERENCES:
patent: 3189289 (1965-06-01), Maxey
patent: 3507437 (1970-04-01), Lips
patent: 3658227 (1972-04-01), Stephens
patent: 4017897 (1977-04-01), Blanding
Robert & Bosch GmbH
Schacher Richard A,.
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