Advancing material of indeterminate length – Plural material-moving means – And intermediate storage
Patent
1986-05-05
1988-11-29
Stodola, Daniel P.
Advancing material of indeterminate length
Plural material-moving means
And intermediate storage
226 97, 226190, 226195, B65H 2024
Patent
active
047875445
ABSTRACT:
A dancer roller apparatus for controlling tension in a sheet material as the sheet material is wound between a pair of rollers. The apparatus includes a housing having a cavity, an entrance, and an exit opening communicating into the cavity for passage of the sheet material into and out of the cavity. The cavity is provided therein with a pair of end arcuate surfaces and a guide channel which is disposed adjacent the end arcuate surfaces. An elongated movable roller is positioned in the cavity atop the sheet material for applying a tension to the sheet material between the entrance and exit openings. The roller includes end arcuate surfaces for closely fitting in the end arcuate surfaces of the housing. A first gear segment is secured to the arcuate ends of the roller, and a gear rack is movably carried in each of the guide channels for meshed relation with the first gear segment.
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patent: 2998175 (1961-08-01), Topping
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patent: 4316587 (1982-02-01), Gauthier
IBM Technical Disclosure Bulletin, "Tension Controller", J. R. Middleton, vol. 15, No. 4, 9/1972.
Phillips C. A.
Stodola Daniel P.
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