Back to results
US 5,065,477 AGranted
Calendar rollers with rounded teeth for crimping sliver and increasing cohension length
AssigneeRieter Machine Works, Ltd.
InventorsHansulrich Eichengerger, Heinz Clement
Life of this patent
Estimating the term…
Abstract
The device for increasing the cohesion length of the slivers is embodied by a pair of calendar rollers. Each calendar roller has a plurality of transversely disposed protuberances of rounded shape for interengaging in spaced relation with each other in order to slightly crimp a sliver passing through the gap between the rollers. The protuberances are adapted to one another in gear-like manner.
Claims13
A device for increasing the cohesion length of sliver, said device comprising
- a pair of parallel calendar rollers disposed in spaced relation to a gap therebetween, each said roller having a plurality of transversely disposed protuberances thereon for interengaging in spaced relation with said protuberances of the other of said rollers to slightly crimp a sliver passing through said gap to increase the cohesion of length of the sliver;
- and
- means for spring biasing at least one of said rollers towards the other of said rollers, each said protuberance being of tooth-like cross-section with rounded edges and a pair of flanks, each flank defining an angle with a radius of said respective roller passing through a center of said protuberance of greater than 45.degree..
In a textile machine, the combination comprising
- a condensor funnel for receiving and passing a sliver therethrough;
- a pair of parallel calendar rollers downstream of said funnel to define a gap therebetween for receiving sliver from said funnel, each said roller having a plurality of transversely disposed protuberances thereon for interengaging in spaced relation with said protuberance of the other of said rollers to slightly crimp a sliver passing through said gap to increase the cohesion length of the sliver, each protuberance having a pair of flanks, each flank defining an angle with a radius of said respective roller passing through a center of said protuberance of greater than 45.degree.;
- and
- means for spring biasing at least one of said rollers towards the other of said rollers.
1 more element
A device for increasing the cohesion length of sliver, said device comprising
- a pair of parallel calendar rollers disposed in spaced relation to a gap therebetween, each said roller having a plurality of transversely disposed protuberances thereon for interengaging in spaced relation with said protuberances of the other of said rollers to slightly crimp a sliver passing through said gap to increase the cohesion of length of the sliver, each said protuberance having a height of between 0.3 and 0.8 millimeters;
- and
- means for spring biasing at least one of said rollers towards the other of said rollers.
A device for increasing the cohesion length of sliver, said device comprising
- a pair of parallel calendar rollers disposed in spaced relation to a gap therebetween, each said roller having a radially projecting lateral guide flange on one side, said flanges defining a transverse passage for guiding of the sliver therebetween into said gap and each roller having a plurality of transversely disposed protuberances thereon for interengaging in spaced relation with said protuberances of the other of said rollers to slightly crimp a sliver passing through said gap to increase the cohesion of length of the sliver;
- and
- means for spring biasing at least one of said rollers towards the other of said rollers.
In a textile machine, the combination comprising
- a condensor funnel for receiving and passing a sliver therethrough;
- a pair of parallel calendar rollers downstream of said funnel to define a gap therebetween for receiving sliver from said funnel, each said roller having a radially projecting lateral guide flange on one side, said flanges defining a transverse passage for guiding of the sliver therebetween into said gap and each roller having a plurality of transversely disposed protuberances thereon for interengaging in spaced relation with said protuberances of the other of said rollers to slightly crimp a sliver passing through said gap to increase the cohesion of length of the sliver;
- and
- means for spring biasing at least one of said rollers towards the other of said rollers.
1 more element
Dependencies are inferred from the claim text.