Apparatus for treating yarns

Apparatus for preparing yarns for use in manufacturing patterned fabrics prior to either storing the yarns or making the fabrics comprising:

• printing means for printing the yarn at predetermined intervals and for predetermined sectional lengths thereof;
• timing means for controlling the printing means;
• at least one first exit roller positioned to lead the yarn from the printing means, the timing means being energized by said exit roller, said first exit roller letting the yarn, upon exit therefrom, fall downwardly by gravitational force;
• control means operatively connected between said exit roller and the timing means, said control means when in a first condition thereof permitting operation of the timing means by the first exit roller, and when in a second condition thereof disengaging the timing means from said first exit roller while simultaneously applying a brake to the timing means to hold the latter immobile during the time said control means is in its second condition;
• a first restraining means positioned below the first exit roller and adapted to receive the yarn and apply a torsional restraint to the yarn as it moves downwardly;
• a steam chamber for fixing the dye-stuff on the yarn and positioned below the restraining means;
• a first conveyor belt having entrance and exit ends, at least the upper reach of the belt passing through the steam chamber, said entrance end being adapted to receive yarn in plaits thereon as the yarn leaves said first restraining means;
• nip rolls at the exit end of the first conveyor belt and positioned so that the plaits of yarn pass through the nip of said rolls before leaving the first belt;
• vertical cascade washing means adjacent said nip rolls;
• a second exit roller pulling the yarn from the cascade washing means, and thereafter letting the yarn fall downwardly by gravitational force;
• second restraining means positioned below the second exit roller and adapted to receive the yarn and apply a torsional restraint to the yarn as it moves downwardly;
• a drying chamber for drying the yarn and positioned below the second restraining means, the chamber having an entrance and an exit;
• a second conveyor belt having entrance and exit ends, at least the upper reach of the belt passing through the drying chamber, said entrance end being adapted to receive yarn in plaits thereon as the yarn leaves said second exit roller;
• nip rolls at the exit end of the second conveyor belt and being positioned so that the plaits of yarn pass through said nip rolls before leaving said second conveyor belt;
• and
• means for removing said yarn from said second conveyor belt.

Apparatus for preparing yarns in a web thereof for use in manufacturing patterned fabrics prior to either storing the yarns or making the fabrics comprising:

• printing means for printing the yarns with dye-stuff at predetermined intervals and for predetermined sectional lengths thereof;
• timing means for controlling the printing means;
• at least one first exit roller positioned to lead the yarns from the printing means, the timing means being energized by said exit roller, said first exit roller letting the yarns, upon exit therefrom, fall downwardly by gravitational force;
• control means operatively connected between said exit roller and the timing means, said control means when in a first condition thereof permitting operation of the timing means by the first exit roller, and when in a second condition thereof disengaging the timing means from said first exit roller while simultaneously applying a brake to the timing means to hold the latter immobile during the time said control means is in its second condition;
• a first restraining means positioned below the first exit roller and adapted to receive the yarns and restrain their motion as they fall downwardly;
• a steam chamber for fixing the dye-stuff on the yarns and positioned below the restraining means;
• a first conveyor belt having entrance and exit ends, at least the upper reach of the belt passing through the steam chamber, said entrance end being adapted to receive yarn in plaits thereon as the yarn leaves said first restraining means;
• nip rolls at the exit end of the first conveyor belt and positioned so that the plaits of yarn pass through the nip of said rolls before leaving the first belt;
• washing means adjacent said nip rolls adapted to pull the yarn from said nip rolls;
• a second exit roller pulling the yarn from the washing means, and thereafter letting the yarn fall downwardly by gravitational force;
• second restraining means positioned below the second exit roller and adapted to receive the yarn and restrain its motion as it falls;
• a drying chamber for drying the yarn and positioned below the second restraining means;
• a second conveyor belt having entrance and exit ends, at least the upper reach of the belt passing through the drying chamber, said entrance end being adapted to receive yarn in plaits thereon as the yarn leaves said second exit roller;
• nip rolls at the exit end of the second conveyor belt and being positioned so that the plaits of yarn pass through said nip rolls before leaving said second conveyor belt;
• means for removing said yarn from said second conveyor belt;
• means for shifting the lateral arrangement of all of the yarns in said web;
• means for realigning longitudinally at least some of the yarns in respect to other yarns in the web;
• and
• means for guiding the yarns to a station for further operations thereon.