Method of tufting a pile fabric

Claim 1

IN THE TUFTING OF WILTON EFFECT PILE FABRIC FOR USE AS FLOOR COVERINGS AND THE LIKE UTILIZING A PLURALITY OF SPACED, RECIPROCABLE, LATERALLY SHIFTABLE NEEDLES, A PLURALITY OF ALIGNED LATERALLY IMMOVABLE LOOPERS, AND A BACKING MEMBER MOVING BETWEEN SAID NEEDLES AND SAID LOOPERS, THE METHOD OF INSERTING A PLURALITY OF COLORED PILE YARNS CARRIED BY SAID NEEDLES THROUGH THE BACKING MATERIAL TO PRODUCE LONGITUDINAL LINEAR ROWS OF PILE PROJECTIONS ON THE OPPOSITE SIDE OF THE BACKING MATERIAL, SIMULTANEOUSLY ADVANCING THE BACKING MATERIAL IN A LONGITUDINAL LINEAR PATH WHILE SHIFTING THE POINTS OF PILE INSERTION BY LATERALLY SHIFTING THE NEEDLES A DISTANCE SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN AT LEAST TWO LOOPERS AND TRANSVERSELY ACROSS THE DIRECTION OF FEED OF THE BACKING MATERIAL IN ACCORDANCE WITH A PREDETERMINED PATTERN WHILE VARYING THE YARN FEED TO THE BACKING MATERIAL TO CONTROL THE RELATIVE HEIGHT OF INSERTED PILE PROJECTIONS WHEREBY SELECTED LOWER PILE PROJECTIONS ARE CONCEALED BY SELECTED HIGHER PILE PROJECTIONS IN A NON-GEOMETRICAL AREA.