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US 4,429,722 AGranted
Method and apparatus for weaving fabrics of novel construction
AssigneeQuaker Fabric Corp.
InventorEarl E. Herzog
Life of this patent
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AssigneeQuaker Fabric Corp.
InventorEarl E. Herzog
Estimating the term…
Method and apparatus are disclosed for weaving fabrics on a loom wherein, during the usual operation of the loom, specially arranged warp yarns, hereinafter called "decorating yarns" advancing from separate warp yarn supplies which are remote from the normal warp beam, are caused to cross over the normal warp yarns during shedding. The decorating yarns are under the control of unique heddles mounted in harnesses which are arranged for both sideways or lateral movement and also adapted for up and down movement. The unique heddles and harnesses are controlled in synchronism with the normal shedding of the loom so that the specially arranged decorating yarns are caused to cross over the usual warp yarns and then be projected into the shed to be held in place as the filling is projected through the shed and beat-up. Thus, the decorating yarns, which may vary from the usual warp yarns in any desired manner as, for example, count, color, fiber composition, etc., and may diverse with respect to each other, are locked into the fabric woven on the loom as an integral part of that fabric. Mechanism is provided for programming both the lateral and horizontal movements of the harnesses carrying the unique heddles to permit formation of woven fabrics possessing a wide variety of constructions consistent with the manner in which the aforesaid special harnesses and heddles are operated in relationship to the normal weaving operation of the loom.
In a loom means for advancing a plurality of warp yarns in generally parallel paths through said loom for weaving into fabric, and means for deflecting said warp yarns in diverging planes during their advance to form a shedding zone through which filling yarn is projected for interweaving with said warp yarns during subsequent beat up by a reed to the fell of the fabric being woven on the loom, the improvement comprising:
Apparatus as set forth in 1 wherein each said harness is provided with a series of depending needles each having a yarn-receiving eyelet proximate the lower end thereof for receiving at least one decorating yarn therein.
Apparatus for operating harness means in a loom adapted to have a sheet of warp yarns advancing therealong in generally parallel paths to be woven into fabric comprising, operating means for moving said harness means laterally of said sheet of warp yarns from a first position above said sheet of warp yarns to a second position and thereafter shifting said harness means from said second position to an intermediate position between said first and second positions, said operating means including electrical means operable in a predetermined sequence for activating pneumatic means connected with said harness means and means for moving said harness means generally vertically relative to said sheet of warp yarns simultaneously with shifting of said harness means to said intermediate position.
A method of operating a loom wherein a plurality of warp yarns are advanced in generally parallel paths through said loom for weaving into fabric with the warp yarns being deflected in diverging paths during their advance to form a shedding zone through which filling yarn is projected for interweaving with said warp yarns during beat up by a reed to the fell of the fabric being woven on the loom, comprising the steps of:
In a loom adapted to have a sheet of warp yarns advancing therealong in generally parallel paths to be woven into fabric, the combination comprising, a reed through which the warp yarns advance, said reed having upstanding guide means projecting upwardly therefrom, harness means carrying a plurality of supply yarns, means for moving said harness means laterally of said sheet of warp yarns to carry said supply yarns from a first position above said reed and proximate to one side of said guide means to a second position above and proximate the opposite side of said guide means, means for shifting the harness means from said second position to an intermediate position between said first and second positions where each of said supply yarns is moved into contact with the opposite side of said guide means, and means for moving said harness means generally vertically relative to said sheet of warp yarns simultaneously with shifting said harness means to said intermediate position to thereby move said supply yarns toward said sheet of warp yarns while guiding said supply yarns along said opposite side of said guide means.
Dependencies are inferred from the claim text.