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For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
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Improved tracking and incrementing of a web from a supply roll result when the reactive force of a blousing bail and roll brake are varied directly with the diameter and weight of the roll.
English (United States)
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100% of the total text.
Page 1 of 2
Roll Feed Blousing Bail
Improved tracking and incrementing of a web from a supply roll result when
the reactive force of a blousing bail and roll brake are varied directly with the
diameter and weight of the roll.
The figure shows one end of the mechanism for controlling the blousing bail
or dancer bar and is duplicated at the opposite end. Web 1 is withdrawn from
supply roll 2 over a resiliently biased bail 3 by the nip of an incrementally rotating
feed roll 4 and pressure roll 5. As the web is withdrawn over the bail from the
roll, bail arm 6 rotates downwardly about pivot 7 against the urging of tension
spring 8 connected between bail arm end 9 and treadle 10. A second tension
spring 11, secured to frame 12, urges the treadle counterclockwise about pivot
13 to pull the treadle into engagement with the surface of roll 2. As the roll
decreases in diameter and weight, both tension springs 8 and 11 decrease their
force on bail 3 and reduce the braking action of the treadle on the roll surface.
Page 2 of 2
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