Roper Corporation

William Van Fielder, Jr

A venetian blind assembly having rotatably mounted tilt drums which are adapted to permit properly aligned and indexed mounting of respective slat ladders without the necessity for time consuming measurements and without the need for auxiliary fasteners. Each ladder has an uppermost rung disposed about an underside of a respective tilt drum with portions of the ladder side cords adjacent said uppermost rung extending over the drum in crossing relationship and then downwardly along opposite sides of the drum with the slat supporting rungs suspended below the drum. The drum includes first integrally formed ladder engaging constrictions cooperating with the uppermost ladder rung for indexing the rung in relatively precise position on the drum and for securing the ladder in such index position, and second ladder engaging constrictions in axially spaced relation to the first ladder engaging restrictions for retaining the downwardly extending side cord portions in proper position with respect to the drum, whereby the upper rung and adjacent side cord portions are wrapped about the drum approximately 11/2 turns and secured in such assembled position during tilting movement of the drum.

Venetian blind assembly with improved ladder supporting tilt drums

A master slide for supporting the leading edge portion of a drape which includes a horizontally extending arm having vertical holes for receiving in upright position a forwardly projecting drapery hook at the front and a laterally projecting drapery hook at the tip. Special abutments are provided at the tip to hold the hook positively in its laterally extending direction free of swiveling action so that the leading edge portion of the drape, hooked in stretched condition on the hooks, closely conforms to the front surface of the arm and extends to a point beyond the tip. In the preferred embodiment, the special tip construction is used in both right hand and left hand master slides, forming an overlapping set, with the conformation of the drapes to the arms serving to hold the leading edge portions of the drapes under positive control to preclude any rubbing of the drapery material as the slides move in and out of their overlapping relation. The arm construction is symmetrical about a horizontal plane so that the device is equally effective with the arm projecting to the left or to the right.

Growing community of inventors

Westminster, MD, United States of America

William Van Fielder, Jr