E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
160/1, 26/184, 1
E06B 9/26 (2006.01) B21D 13/04 (2006.01) E06B 9/266 (2006.01) E06B 9/386 (2006.01)
Patent
CA 1221615
ABSTRACT OF THE DISCLOSURE A metal slat for use in a venetian-type blind including an embossed rib formed at each narrowed slat material region adjacent the cord receiving slots. The slat also includes a decorative weave pattern comprising a plurality of separated longitudinal rows of embossed ribs formed on the slat in a continuous in-and-out pattern. Also disclosed is apparatus for forming the embossment weave pattern concurrent with forming the crown configuration of the slat. The apparatus includes a first rotary die arrangement for prestretching of at least one localized region of a continuous flat metal strip passing therethrough, a second rotary die arrangement for simultaneously forming the strip into a crown configuration and forming the embossment pattern therein, and a third die arrangement for compensating out of the strip any bow, side curve or twist. A-38846/LCB 830112
434367
Smart & Biggar
Toti Andrew J.
LandOfFree
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