Method and apparatus for manufacturing compound non-woven textile structures

Claim 1

AN IMPROVEMENT IN AND TO THE METHODFOR THE MANUFACTURING OF NON-WOVEN TEXTILE STRUCURES, COMPRISING THE STEPS OF FEEDING AT LEAST TWO GROUPS OF ORIGINALLY STRAIGHT AND PARALLEL YARNS, ALONG AN EQUAL NUMBER OF CONVERGING RESPECTED PLANES, TO TWO MEMBERS THAT ARE DRIVEN IN OPPOSITE DIRECTIONS, GRIPPING THE YARNS INTO CONTACT BETWEEN THE MEMBERS TO SET THEM IN THE RELATIVE POSITIONS IN WHICH THEY ENTER BETWEEN THE MEMBERS; CAUSING LATERALLY RECIPROCATING, ALONG A LINE TRANSVERSE TO THE DIRECTION OF YARN FEED AND UPSTREAM OF THE MEMBERS, AT LEAST SOME OF THE YARNS OF AT LEAST ONE GROUP, WHEREBY THE THUS RECIPROCATED YARNS WILL ENTER BETWEEN THE MEMBERS AT AN ANGLE TO THE DIRECTION OF YARN FEED, AND WHICH ANGLE IS CONTINUOUSLY VARIED DUE TO THE RECIPROCATION, SO THAT THE THUS RECIPROCATED YARNS WILL FOLLOW A SINUSOIDAL COURSE DOWNSTREAM OF THE MEMBERS; THE THUS RECIPROCATING YARNS FORMING THE WEFT OF A NET-LIKE WEAVE WHILE THOSE YARNS WHICH ARE NTO RECIPROCATED LATERALLY AND THUS PASS THROUGH THE MEMBERS IN PARALLEL RELATION TO THE DIRECTION OF YARN FEED FORM THE STRAIGHT WARP OF THE NEL-LIKE WEAVE; CHARACTERIZED BY LATERIALLY RECIPROCATING THE WEFT-FORMING YARNS THROUGH A RANGE SUCH THAT THE WEFT IS FORMED WITH UNDULATIONS FOR HEIGHT OF WHICH IS ONLY A FRACTION OF THE OVERALL WIDTH OF WEAVE, AND THAT AT LEAST TEN WARP YARNS ARE CROSSED BY EACH UNDUALATION OF WEFT YARN; THE DISTANCE BETWEEN TEH LINE OF RECIPROCATION AND THE GRIPPING LINE BEING LESS THAN THE AMPLITUDE OF SAID UNDULATIONS.