Abstract: A venetian blind and a tape roll support for fitting in a venetian blind headrail which is of channel-shaped cross-section, formed of a lower web and front and rear flanges, and having an inturned rim at the upper free edges of the flanges, the support including a base, an inclined wall extending upwardly and forwardly from the base and a rear wall extending upwardly from the base, upper inclined portions at the top of the front and rear walls being engageable by the inturned rim to hold the base in engagement against the lower web. The support can be fitted merely by pushing downwardly into the headrail which is caused to flex and spring back to hold the support in place.

Abstract: An external venetian blind is disclosed having a plurality of slats (10) which in the closed position overlap each other and at least two flexible lifting elements (14) extend through openings (20) in the slats (10). One edge (12) of each slat is offset along a bend line (15) to help in guiding the slats during opening and closing of the blind. In one embodiment shown in FIG. 1 the offset edge portion (12) lies substantially parallel to the lifting elements (14) while in the preferred embodiment of FIG. 3 the offset edge (12) lies at an angle of up to 10.degree. with respect to the lifting elements (14). This angle is preferably 3.degree. to 6.degree. with 5.degree. being the most preferred. The lower edge (17) of the slats (10) is rolled inwardly and has secured thereto a resilient sealing strip (18) to bear against the next lower slat in the closed position to insure quietness of operation and the secure elimination of light penetration through the blind.