Strand treatment apparatus
AssigneeTextured Yarn Co., Inc.
InventorsRalph W. List, Malcolm F. Irwin, Robert K. Stanley
Life of this patent
Estimating the term…
Abstract
Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.
Claims11
In apparatus for setting crimped textile strands, improved temporary holdup means comprising a pair of conveyor screens with mutually parallel rolls supporting the respective screens;
- the first screen having a V configuration as viewed edge-on, in the direction of the roll axes, the first screen passing about a first upper roll at one arm extremity of the V, a lower roll at the apex of the V, and a second upper roll at the other arm extremity of the V;
- the second screen having an I configuration as viewed likewise, the second screen passing about an upper roll and a lower roll, the upper roll of the second screen being located between and spaced from the upper rolls of the first screen, and the lower roll of the second screen being located above and spaced from the lower roll of the first screen;
- the first screen also being constrained to pass below the lower roll of the second screen and contiguous with the second screen thereat, a housing enclosing the respective lower rolls and extending to the respective upper rolls, means for injecting hot fluid into the housing, and means for heating the housing independently thereof.
In apparatus for setting crimped textile strands, the improvement comprising a relatively coarse conveyor screen, a relatively fine conveyor screen, rotative means constraining the respective screens for travel adjacent one another over a part of their paths, the constraining means including a yieldable arrangement for permitting accumulation of strand between the respective screens to force them apart from one another at a locus of support thereof and means for injecting setting fluid at the side of the coarse screen opposite the strand-contacting surface thereof.
In apparatus for setting crimped textile strands, a setting chamber, conveyor means within the chamber including a pair of generally adjacent conveyor screens having a gore between mutually converging downward flights thereof and a gore between diverging upward flights thereof, being closest to one another intermediate the gores, means for depositing crimped strand between the downwardly converging flights, and means for withdrawing the strand lengthwise from between the upwardly diverging flights and out of the chamber.
Dependencies are inferred from the claim text.