Advancing material of indeterminate length – Passive guide
Patent
1988-11-21
1990-02-20
Jillions, John M.
Advancing material of indeterminate length
Passive guide
226 21, B65H 2302
Patent
active
049019031
ABSTRACT:
Apparatus for guiding a moving web (10) of material in a predetermined travel path (15) relative to a stationary frame (14) is disclosed. A compliant roller (24) is mounted on a pivoted yoke (30) for rolling contact with the web (10) so that as the web moves, the roller (24) finds its natural rolling position on the web. An edge guide (40) is mounted on the roller shaft (26) and is rotatable and axially movable relative to the shaft. An edge guide adjustment mechanism (50) includes a stationary bracket (52) with spaced adjustment stations (58), and a laterally movable control rod (56). The control rod engages the edge guide (40) to determine its lateral position, and selectively locks with the bracket (52,58) to set this lateral position. A light tension spring (22) connects the frame (14) and the yoke (30) to urge the roller (24) and web (10) toward the edge guide (40). Rolling action of the roller, and the light force of the spring together impede aberrant lateral movement of roller and web and provide corrective action should it occur.
REFERENCES:
patent: 3547330 (1970-12-01), Crowe
patent: 3693781 (1972-09-01), Homeier
patent: 3986650 (1976-10-01), Swanke et al.
patent: 4572417 (1986-02-01), Joseph et al.
patent: 4641770 (1987-02-01), Hediger
patent: 4685664 (1987-08-01), Petersdorf
Eastman Kodak Company
Jillions John M.
Smith James A.
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