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US 4,357,793 AGranted
Sliver-processing frame having drawing rollers
AssigneeLuwa AG
InventorsHermann Gasser, Karl Curiger, Peter Novak
Life of this patent
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Abstract
For automatic feeding of slivers through drawing rollers there is provided a sliver-processing frame having drawing rollers, tubes for conveying slivers to be drawn and a plurality of suction elements connected to a common source of low pressure wherein the drawing rollers are enclosed in a casing of which the interior is connected to the source of low pressure the casing having inlet orifices for admitting cleaning air to the surfaces of the drawing rollers, one end of each tube leading into the casing.
Claims11
A sliver processing frame, comprising:
- at least one set of drawing rollers;
- at least one conveying tube for conveying a sliver to the drawing rollers;
- a casing enclosing the drawing rollers;
- means constituting a negative pressure source operatively connected with the casing;
- said conveying tube being operatively connected to the casing;
- means for admitting cleaning air to the casing and the drawing rollers;
- said means constituting said negative pressure source comprising a common source for casing cleaning air to enter the casing via the cleaning air admitting means and for generating an air flow in the conveying tube for transporting the sliver through the conveying tube to the drawing rollers;
- and
- means connecting said common source with said casing.
6 more elements
Dependencies are inferred from the claim text.