Apparatus and methods for the control and automatic regulation of the pressure of squeezing rollers in a continuous process

Claim 1

APPARATUS FOR APPLYING A DESIRED QUANTITY OF SIZING TO A SHEET OF THREADS, SAID APPARATUS COMRPISING: A TANK CONTAINING AN AQUEOUS SOLUTION OF SIZING MATERIAL IN A DETERMINED CONCENTRATION, MEANS FOR ENGAGING THE SHEET OF THREADS TO DRAW THE SAME ALONG A PATH OF ADVANCEMENT INCLUDING PASSAGE THROUGH THE SOLUTION IN THE TANK, SQUEEZING ROLLERS LOCATED ADJACENT THE TANK AND IN SAID PATH FOR SQUEEZING THE SHEET AFTER THE SHEET PASSES THROUGH SAID SOLUTION, TO EXPEL SOLUTION THEREFROM, SAID ROLLERS HAVING AN ADJUSTABLE SPACING TO VARY THE DEGREE OF SQUEEZING OF THE SHEET AND THEREBY THE QUANTITY OF SOLUTION EXPELLED THEREFROM, MEANS FOR MEASURING THE ELECTRICAL RESISTANCE OF THE SHEET AS THE SAME PASSES FROM SAID SQUEEZING ROLLERS WHICH RESISTANCE IS A FUNCTION OF THE QUANTITY OF SIZING SOLUTION ON SAID SHEET, MEANS CONTROLLING THE SPACING OF THE ROLLERS, MEANS ASSOCIATING THE MEANS WHICH MEASURES THE ELECTRICAL RESISTANCE WITH THE MEANS FOR CONTROLLING THE SPACING OF THE ROLLERS TO CAUSE THE ROLLERS TO BE SPACED A DISTANCE CORRESPONDING TO THE QUANTITY OF SOLUTION TO BE EXPELLED IN ORDER TO LEAVE A GIVEN CONSTANT QUANTITY OF SOLUTION IN THE SHEET AND MEANS LOCATED BEYONG THE MEANS FOR MEASURING THE ELECTRICAL RESISTANCE TO MEASURE THE QUANTITY OF SOLUTION IN THE SHEET FOR CONTROLLING THE MEANS FOR DRAWING THE SHEET TO VARY THE SPEED OF ADVANCEMENT OF THE SHEET SO THAT A GIVEN QUANTITY OF SIZING WILL BE OBTAINED IN THE SHEET FOR A PARTICULAR CONSTANT PRESSURE APPLIED TO THE SHEET BY THE SQUEEZING ROLLERS, SAID MEANS FOR ENGAGING THE SHEET INCLUDING A PAIR OF ROLLERS ENGAGING THE SHEET AT A LOCATION BEYOND THE SQUEEZING ROLLERS WHEREAT THE SHEET IS DRY AND THE SIZING DEPOSITED THEREON.