Patent ID: RE43475

Claim:
A venetian blind including: at least two vertically-extending slat-supporting ladders, each ladder comprising first and second vertical members connected by a plurality of vertically-spaced cross-rungs; a plurality of horizontally-arranged slats, each slat being supported on one of said cross rungs in each of said ladders and between said first and second vertical members; an adjusting mechanism for commonly pivoting each of said slats about its longitudinal axis by moving said first and second vertical members of said ladders in vertically opposite directions; a vertically-extending auxiliary tilt cord that is adjacent to a first vertical member of a ladder and can be moved vertically in a direction; engaging means, on said auxiliary tilt cord and said adjacent first vertical member of said ladder, for moving said adjacent first vertical member at an intermediate location along its length vertically in said direction with vertical movement of said auxiliary tilt cord in said direction, so as to adjust the angular pivot of a section of the cross-rungs connected to said first vertical member above or below said intermediate location; said engaging means including: a guiding loop on said first vertical member; a bead fixed on said auxiliary tilt cord and vertically spaced away from said guiding loop; and an engaging collar slidably positioned on said auxiliary tilt cord between said guiding loop and said bead; said auxiliary tilt cord extending through said guiding loop; said bead being adapted to engage said engaging collar and thereafter move said engaging collar toward said guiding loop when said auxiliary tilt cord is moved vertically in said direction; and said engaging collar being adapted to engage said guiding loop when said auxiliary tilt cord is moved further vertically in said direction.