Apparatus for correcting irregularities in a textile strand
AssigneePlatt Saco Lowell Limited
InventorMichael A. Vidler
Life of this patent
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Abstract
An apparatus for correcting irregularities in a moving textile strand utilizes sensors B and C making measurements reflecting variations in capacitance of a moving textile strand, and a computer E supplying data reflecting the characteristics of the strand as a result of varying moisture content in a similar strand for reducing the effect of moisture contained in the strand upon the measurements and upon an autoleveller controlling the strand in response to said measurements.
Claims16
Apparatus for correcting irregularities in a moving textile fiber strand comprising:
- means moving said fiber strand;
- a capacitance sensor adjacent said moving fiber strand making measurements reflecting variations resulting from said irregularities;
- electrically operable means for reducing the effect of moisture contained in said strand upon said measurements;
- a computer supplying data to said electrically operable means reflecting the characteristics of a similar strand as a result of varying moisture content;
- and
- an autoleveller operable responsive to said electrically operable means for correcting irregularities in said strand.
For use in a drawing frame having a drafting system moving a textile fiber strand, apparatus for correcting irregularities in said textile fiber strand comprising:
- a capacitance sensor adjacent said moving fiber strand making measurements reflecting variations resulting from said irregularities;
- electrically operable means for reducing the effect of moisture contained in said strand upon said measurements;
- a computer supplying data to said electrically operable means reflecting the characteristics of a similar strand as a result of varying moisture content;
- and
- an autoleveller operable responsive to said electrically operable means for controlling the drafting system for correcting irregularities in said strand.
The method of correcting irregularities in a moving textile fiber strand comprising the steps of:
- moving said fiber strand;
- sensing said moving fiber strand utilizing a capacitance sensor so as to make measurements reflecting variations resulting from said irregularities;
- and
- correcting said measurements by reducing the effect of moisture contained in said strand upon said measurements by utilizing data reflecting the characteristics of a similar strand as a result of varying moisture contents thereon correcting irregularities in said strand responsive to said corrected measurements.
Apparatus for correcting irregularities in a moving textile fiber strand comprising:
- means moving said fiber strand;
- a sensor adjacent said moving fiber strand making measurements reflecting variations resulting from said irregularities;
- electrically operable means for reducing the effect of moisture contained in said strand upon said measurements;
- a computer supplying data to said electrically operable means reflecting the characteristics of a similar strand as a result of varying moisture content;
- and
- an autoleveller operable responsive to said electrically operable means for correcting irregularities in said strand.
Apparatus for measuring irregularities in a moving textile fiber structure capable of being drafted to correct said irregularities comprising:
- means moving said fiber structure;
- a capacitance sensor adjacent said moving fiber structure making measurements reflecting variations resulting from said irregularities;
- electrically operable means for reducing the effect of moisture contained in said fiber structure thereby providing corrected measurements;
- and
- a computer supplying data to said electrically operable means reflecting the characteristics of a similar fiber structure as a result of varying moisture content;
- whereby said corrected measurements may be utilized to correct said irregularities when drafting said fibers.
Dependencies are inferred from the claim text.