By Sigrun WinklerOn Dec 06, 2017 Ideas
The two overall types of window blinds are ready-made blinds and made to measure. Made-to-measure blinds are made to fit a given or measured window size. Ready-made blinds are manufactured in set sizes that can be cut down to fit any window. Window blinds can be classified broadly into six different categories: roller blinds (which do not have slats but consist of a single piece of material), Roman blinds, pleated blinds, Venetian blinds, Shoji Japanese blinds and vertical blinds.
Vertical blinds use a generally wider slat and one can pull a cord to stack the slats together, to one side, or to separate them in the centre and stack them on each end. The slats can be rotated via a rotating shaft in the upper head rail housing, which runs through independent geared carriers that convert the twisting of a tilt rail to a rotation of each individual slat in synchrony. The original vertical blinds were invented in Kansas City, Missouri by Edward Bopp and Fredrick Bopp, who held the original patent. The company name at the time was Sun Vertical. In the 1960s, the patent and company were sold.
Shoji blinds are based on Japanese Shoji screens and slide on a conventional panel blind track so the panels stack one-in-front of the other- they can stack to either or both sides of the window, inside or outside the recess. They are frequently used as room dividers or wardrobe doors.
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