Device for heat treatment of permeable webs of goods
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United States of America Patent
Stats
-
Nov 28, 2000
Grant Date -
N/A
app pub date -
Apr 30, 1999
filing date -
Apr 30, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A device is known for heat treatment of permeable webs of goods with a housing in which at least one screen roller is mounted and a pumping device is associated endwise with the roller, said pumping device drawing a processing medium in the formal of a vapor and/or gas out of the screen roller, with the through-flow area of the roller, in other words the working width of the screen roller, being capable of being determined by a width-adjusting device on the screen roller. A screen roller of this kind is improved according to the invention if a) at least in the area covered by the web of goods, it has two coaxially mounted permeable screen roller jackets located with a distance between them, b) a width-adjusting device is provided between the outer and inner screen roller jackets, said device c) being adjustable by a spindle on the axis of the screen roller, and d) the inner screen roller jacket is made permeable only in the area that corresponds to the minimum working width of the roller. A design of this kind is suitable for large differences in working width and also for smaller screen roller diameters without resulting in non-uniform processing over the working width.
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