Shedding device for weaving looms, in particular for double-lift open-shed jacquard machines
AssigneeFirma Grosse Webereimaschinen GmbH
InventorWalter Keim
Life of this patent
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Abstract
A shedding device for a double-lift open-shed Jacquard loom which comprises a pair of vertically shiftable horizontal blades adapted to pass each other and cooperating with lifters which are provided with projection in opposite directions respectively engageable by the blades. The blades of each are provided with spaced apart lifter-engaging surfaces adapted to engage the respective projection upon upward movement but to deflect the lifter away upon downward movement past the projections. Between these spaced apart surfaces of the blades, the blades are incapable of engaging the lifters and the lifters can be shifted transversely to the blades to position them in line with an inclined engaging surface of the blade or in a region between such engaging surfaces.
Claims10
A shedding device for a double-lift open-shed Jacquard weaving loom, comprising:
- an array of upright vertically displaceable lifters each having an upper end formed with a pair of oppositely extending downwardly inclined projections;
- a pair of generally horizontal lifting blades flanking said array and each formed with a plurality of longitudinally spaced inclined surfaces respectively engageable with a projection of a respective lifter upon an upward movement of the respective blade rim to said lifters, said blades being each formed with regions between said surfaces permitting relative displacement of said lifters and said blades without mutual entrainment;
- and
- means for displacing said lifters laterally from a position in which a respective projection is engageable by a respective one of said surfaces of a respective blade and into an adjoining one of said regions for selectively enabling entrainment of said lifters by said blades during upward movement of the blades and preventing such entrainment.
Dependencies are inferred from the claim text.