Abstract: A cutting machine for a Venetian blind comprising a head rail, a bottom rail, and a plurality of blind slats. The cutting machine comprises a body defining a head rail opening, a bottom rail opening, and at least one blind slat opening, a plate for cutting the head rail, a blade assembly for cutting the bottom rail the blind slats, and a drive mechanism. The drive mechanism is operatively connected to the plate and the blade assembly causing the plate to cut the head rail while, at the same time, causing the blade assembly to cut the bottom rail and the blind slats.

Abstract: An improved Venetian blind type window covering having an open position and a closed position is provided. When in a closed position, the window covering presents a face that conceals a securement member and an adjustment member. The window covering also includes a bottom rail, and a plurality of slats between the head rail and the bottom rail. The securement member and the adjustment member, in cooperation, are suitable for adjustably moving or tilting the plurality of blind slats to open and close the window covering. A blind slat tilting mechanism causes positional adjustment of the plurality of blind slats by raising and lowering at least the adjusting member.

Abstract: The present invention relates to a cellular structure for use in honeycomb window shades having plurality of rows forming a single column of double cells, which forms a uniformly pleated appearance for the face and rear of the cellular structure. Each of the plurality of rows of double cells is constructed of a longitudinal strip of material having a greater width portion and a limiting member portion. The limiting member portion serves to restrict the extent to which any row may be stretched. The present invention further relates to a method for making the cellular structure.

Abstract: A method and apparatus for producing an expandable material from a strip material by longitudinally reciprocating a carriage on a frame between first and second rolls containing supplies of the strip material. The carriage is alternately engageable with the strip material of a first supply roll and the strip material of a second supply roll. The carriage includes an adhesive application device that applies an adhesive to a top surface of a stack of sheets of strip material positioned between the first and second supply rolls using the adhesive application device by moving the carriage. The strip material is then pressed and stacked by a press and stacking device that are driven by cams.

Abstract: A method and apparatus for producing an expandable material from a strip material by longitudinally reciprocating a carriage on a frame between first and second rolls containing supplies of the strip material. The carriage is alternately engageable with the strip material of a first supply roll and the strip material of a second supply roll. The carriage includes an adhesive application device that applies an adhesive to a top surface of a stack of sheets of strip material positioned between the first and second supply rolls using the adhesive application device by moving the carriage. The strip material is then pressed and stacked by a press and stacking device that are driven by cams.

Abstract: The cellular structure embodying the present invention includes a length of resilient material folded to form a plurality of planar layers. Each layer is attached to an adjacent layer to from a plurality of cells. Each cell includes a pleated side and an opposing support side. The pleated side has a fold defined by the material. Conversely, the support side has a straight length defined by the material. The cells are configured such that, when the structure is extended, the support sides are coplanar to each other and the pleats are uniformly distributed. Furthermore, the material forming each layer provides for resiliently returning the structure to at least a partially collapsed condition.

Abstract: A pull cord tassel that comprises a body defining first and second apertures for releasably holding a pull cord or a string is disclosed. The first aperture is integral with an elongated aperture which is in turn integral with an assembly aperture. The first string is located in the first aperture and can be moved through the elongated aperture into the assembly aperture where the string is released.

Abstract: A method and apparatus for manufacturing blind material having an expandable dual cell honeycomb structure formed of a continuous length of foldable material. The material is fed onto the stack supporting means and transferred into the stack receiving means, and adhered successively by means of an appropriate pressure in the stack receiving means.

Abstract: A honeycomb structure consists of a plurality of dual cell members, each of these members is formed of a continuous length of foldable material which is folded into a 8-figured configuration. The dual cell members are stacked and adhered superposedly to constitute a window covering and the like.

Abstract: A safety tassel for pull cords, used in a venetian blind for example. The safety tassel includes an eccentric hole to secure with one of the cords and one or more slots to releasably engage the other cords. When a child is entangled in the cords, the cords will be automatically released.

Abstract: A combination of dual cell honeycomb structures comprising a plurality of honeycomb dual cell units in horizontal 8-figured configuration formed of a continuous length of foldable material, then stacked and adhered to each other vertically so as to form three columns of the cells side by side.

Abstract: An improved safety tassel for pull cords that includes a body provided with four cord-engaging slots. At least three of the cord-engaging slots are formed with radial slots having enlarged openings at divergent and convergent ends.

Abstract: A pulling device for a roll shaft for roller blinds or screens comprises a housing, a chain pulley situated in the housing and a chain slung around the pulley. The chain is formed by a cord with a number of beads distributed at regular interval along the length. The pulley is provided with a central channel and a series of notches at the periphery to receive the cord portion and the beads of the chain, respectively. The chain is readily pulled to drive the pulley and, in turn, the roller shaft, to wind up or to unwind a roller blind or screen. When the pulling force is released the pulley will be automatically braked by means of the chain itself by the gravity of the roller blind or screen.

Abstract: A lift lock component and a tilt device component for a venetian blind which are fitted into the headrail of the venetian blind. These components and the headrail are constructed and arranged so that the same venetian blind can be used in different situations to meet the requirement of different operational positions simply with a minimum displacement of a few parts of the components.

Abstract: A novel cutter, in particular for a slat, especially of a venetian blind is disclosed. This cutter comprises a pair of modified scissors with a respective knife blade partially deflected. A torsional spring is provided for creating a return action on the blades. The cutter further comprises a guide block having an adjustable width and a limit scale having an adjustable length.

Abstract: An automatic or semiautomatic apparatus cuts off the ends of preassembled standard venetian blinds to provide custom-size blinds for windows that are not modern standard sizes. An automated process is used to cut preassembled blinds to provide custom-size blinds for such windows. The apparatus preferably includes twin cutters arranged to trim both ends of a slat simultaneously, and is shaped, sized and configured to do so while the slat remains preassembled in a blind. The apparatus also preferably includes a vertical bed for suspending a blind in an opened and generally taut condition--and a mechanism for moving the cutter vertically along the bed to cut each slat in turn. Preferably the apparatus automatically registers the cutter with each slat and interrupts the cutting sequence after the last slat is cut. Optical sensing is preferably used to obtain the automatic registration.