Air jet loom with a jacquard frame and a variable drawing-in width

An air jet weaving loom comprising changeable length reed means (4, 5) arranged centrally in said weaving loom, a jacquard machine (1) arranged above and symmetrically to a center of said reed means, said jacquard machine providing harness threads (3) to a centered and symmetric drawing-in width of said reed means, weft thread insertion means on an insertion side of said loom for inserting a weft thread into a loom shed, position adjustable weft thread catch means on an exit side of said air jet weaving loom, means for adjusting the position of said weft thread insertion means back and forth in the weft thread insertion direction (12) on the air jet weaving loom (48), so that adjustments on said insertion side and on said exit side together maintain said drawing-in width centered and symmetric independently of a changed length of said reed means, said air jet weaving loom further comprising weft thread scissors (36), auxiliary selvage means (51) for forming a selvage (53), a weft thread clamp, and means for movably and adjustably mounting said scissors, said auxiliary selvage means, and said weft thread clamp on said weft thread insertion side for maintaining said drawing-in width centered and symmetric.