Web tension equalizing roll and tracking apparatus

Details Web tension equalizing roll and tracking apparatus Web tension equalizing roll and tracking apparatus

2005-03-15

2005-03-15

Mansen, Michael R. (Department: 3654)

Advancing material of indeterminate length

With material-responsive control means

To position material laterally

C242S615100

Reexamination Certificate

active

06866176

ABSTRACT:
A self-tracking roller for centering conveyor belts and web materials on conveyor systems having a guide wheel at each end of a centrally pivoting shaft for contacting the belt or web. The self-tracking roller will pivot in the direction of travel of the belt or web along the side contacted and redirect the belt or web to a central or neutral position by the pivoting action of the roller.

REFERENCES:
patent: 296222 (1884-04-01), Schubiger
patent: 2655251 (1953-10-01), Bankauf
patent: 2655252 (1953-10-01), Spurgeon
patent: 3407673 (1968-10-01), Slezak
patent: 3776442 (1973-12-01), Ridley
patent: 4641770 (1987-02-01), Hediger
patent: 4893740 (1990-01-01), Hediger et al.
patent: 5276460 (1994-01-01), Miyajima
patent: 5397043 (1995-03-01), Blanding
patent: 5659851 (1997-08-01), Moe et al.

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