Device for driving one or more superposed webs for a rotary press, and rotary press
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United States of America Patent
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Dec 10, 2013
Grant Date -
Mar 5, 2009
app pub date -
Aug 26, 2008
filing date -
Aug 27, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides two counter-rotating rollers having substantially parallel axes of rotation which are provided to grip the web(s) between them and to cause the web(s) to move along as a result of their rotation, each roller having two spaced cylindrical support surfaces each defining a zone for gripping the web(s) with a corresponding, opposing, support surface of the other roller. The rollers are displaceable relative to each other in the direction of the axes of rotation and a displacement of one of the rollers relative to the other in the direction of the axes of rotation modifies a distance between the gripping zones. A rotary press is also provided.
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