Abstract: A lift assembly system and method can include a substantially rectangular tube, a motor operably connected to first and second traction drives and a rotatable drum and structurally connected to one end of the tube, a head block fixed to the opposite end of the tube, and a plurality of loft blocks positionable at an infinite number of locations within the tube. An elongate member attached on one end to the drum can be routed through a generally horizontal path from the drum to the first and second traction drives, the head block, and the loft blocks, and then through a generally vertical path from the loft block to an attached article. The elongate member can be wound about the drum to raise the article, and unwound from the drum to lower the article. The system can further include a load-side braking mechanism. The tube can include a compressible material adapted to absorb at least a portion of a horizontal load placed on the lift system.

Abstract: A drive arrangement for a shaft has a module carried by the shaft and including a motor, a driven wheel and a drive wheel. The motor, gearbox and drive wheel are carried on a slider plate which can slide transverse to the axis of the shaft. A front plate is fixed transverse to the axis of the shaft. A Bowden cable has its sheath attached to the front plate, and its inner cable attached to the slider plate, so that manipulation of the Bowden cable at a remote location allows force to be applied between the plates either tightening the belt to apply drive from the motor to the shaft, or releasing tension in the belt, to disengage the drive.

Abstract: A device for closing and opening curtains, which are movable along a rod (1), said rod near its ends being provided with a means for limiting the movement of said curtains. The rod (1) is provided with channels (2) in which an endless toothed belt (3) is received which at the ends of said rod (1) is guided by toothed wheels (7,13) from which one can be driven. Said toothed belt (3) is provided with at least one carrier (4) which can be connected to a curtain and can extend it self downwards through a slot (5) in said rod (1). A connector element (11) is provided which is connected to the rod (1) and extends substantially in line with this and comprises a sideways extending housing (10), in which said drivable toothed wheel (7) is present. The driving of said toothed wheel (7) takes place by means of an electric motor (9), which can be operated by means of a hand switch either by means of a time switch either by means of a light sensor.

Abstract: A retractable covering for an architectural opening includes a headrail in which a control system is mounted and a fabric suspended from the headrail. The fabric is mounted to be moved laterally between a rolled up retracted position and an extended position across the architectural opening. At least one roller about which the fabric can be wrapped is mounted at an end of the headrail for rotation about a vertical axis, and the system includes a flexible control element that is substantially horizontally disposed for moving the covering between extended and retracted positions.

Abstract: A motorized mechanism for actuating motion within a housing of a window shade arrangement having first and second window shades for controlling the amount of light admitted through a window. The motorized mechanism comprises a first rail assembly movable in the housing and connected to a first end of the first window shade and a first end of the second window shade, a second rail assembly movable in the housing and connected to a second end of the second window shade, a second end of the first window shade being fixed to the housing, said first and second window shades being adapted to be extended and compressed relative to the window in accordance with motion within the housing of at least one of said first and second rail assemblies. A first cable is looped between a motor-driven first pulley and a second pulley along a first path. A second cable is looped between a motor-driven third pulley and a fourth pulley along a second path.

Abstract: The present invention relates to a novel release mechanism for Roman Blinds or similar window treatments, whereby a cord release comprising a lift ball releasably attached to a spring release allow for effective operation of a Roman Blind or similar window treatment under normal operation, but allow release of a lift cord from the hem rail and through lift cord guides in the event that a child becomes entangled therein, or in the event that a user wishes to remove the shade material from the head rail.

Abstract: An actuator to be inserted in a headrail of a window covering, the actuator comprises a damping body configured to reduce vibrations when the actuator is operating, and an expanding mechanism configured to expand the damping body against the headrail.

Abstract: An electrical equipment rack, such as a computer server rack, with a protective shield to protect the electrical equipment rack and equipment thereon from water damage is described. In general, the shield is constructed of a curved polycarbonate shell fastened to an aluminum frame having arc-shaped end sections attached to spaced elongated side rails. The aluminum frame is attachable to threaded rod hangers of the type that are used in most server rack rooms. Multiple shields may be fastened together end-to-end to increase the length of the overall shield, to extend over the entire length of the server racks or cabinets needed to be protected. Gaskets such as neoprene seals are compressed between shield sections to prevent water from penetrating between the fastened sections. Deployable curtains are fastened to the elongated side rails to further protect the electrical equipment rack from water damage.

Abstract: A load control system is operable to control the amount of power delivered to a plurality of electrical loads from an AC power source. The load control system includes a plurality of keypads, which each may include a different button assembly having a different button configuration. Each keypad is operable to determine the button configuration of the button assembly installed on the keypad in response to simultaneous actuations of the top button and the bottom button of the button assembly for a predetermined amount of time. Each keypad is further operable to store in a memory of the keypad data representing the button configuration. Therefore, after the keypad is installed in the field and the button assembly is replaced, the keypad can be easily configured to operate with the new button assembly.

Abstract: A portable barrier retraction device and system for retracting and deploying barriers, such as theatrical curtains. The device includes a first drum, a rotatable shaft in selective rotational communication with the first drum, and a clutch configured to disengage the first drum from the rotatable shaft. The device further includes a detachable rotatable second drum in rotational communication with the first drum. The rotatable shaft selectively imparts rotation to the second drum by selectively imparting rotation to the first drum. The second drum includes at least one spool configured to retract or deploy at least one line in response to rotation of the second drum.

Abstract: A lift assembly system and method can include a substantially rectangular tube, a motor operably connected to first and second traction drives and a rotatable drum and structurally connected to one end of the tube, a head block fixed to the opposite end of the tube, and a plurality of loft blocks positionable at an infinite number of locations within the tube. An elongate member attached on one end to the drum can be routed through a generally horizontal path from the drum to the first and second traction drives, the head block, and the loft blocks, and then through a generally vertical path from the loft block to an attached article. The elongate member can be wound about the drum to raise the article, and unwound from the drum to lower the article. The system can further include a load-side braking mechanism. The tube can include a compressible material adapted to absorb at least a portion of a horizontal load placed on the lift system.

Abstract: A device for automatically moving a curtain along a curtain rail, which device comprises driving means movable along the curtain rail, the curtain being adapted to be coupled to the driving means by way of coupling means, wherein the driving means comprise a toothed belt (2). Preferably, the rail (1) is provided with two toothed belt guide channels (1a, 1b) extending in longitudinal direction of the rail, for the purpose of guiding the toothed belt (2) along the rail (1), the device being provided, adjacent at least a first end of the rail (1), with reversing means (3) for reversing a part of the toothed belt (2) extending out of the one guide channel (1a; 1b) and guiding it to the other guide channel (1b; 1a).

Abstract: Provided is a contour curtain driving apparatus which independently ascends and descends a contour curtain which is divided into a number of sub-curtains using a motor, respectively. The contour curtain driving apparatus includes a selector having a selection switch for selecting a driving mode of the contour curtain, an automatic controller controlling the location of the entire contour curtain according to the input of mode switches, a manual controller controlling the location of the contour curtain according to the input of a jog switch, and limit switches which are installed to mechanically change the position set by the automatic controller. Accordingly, the contour curtain is set up in various shapes. The contour curtain driving apparatus can be run immediately after recovery of the circuit out of order due to a momentary power failure or an overload trip. Maintenance and repair can be economically performed since the manipulation limit switches stand close together.

Abstract: A method of controlling a motorized window treatment provides for continued operation of the motorized window treatment during an overload condition, a low-line condition, or an electrostatic discharge (ESD) event. The motorized window treatment is driven by an electronic drive unit having a motor, a motor drive circuit, a rotational position sensor, a controller, and a memory for storing the command. The controller stores the present position of the motorized window treatment in the memory each time the rotational position of the motor changes by a predetermined angle, such that a plurality of positions are stored in the memory. When the controller is reset due to an overload condition or ESD event, the controller recalls the desired position from the memory, determines the present position, and continues to drive the motor drive circuit in response to the command and the present position.

Abstract: This electro-mechanical actuator is used to operate a curtain mounted to slide along an axis. It comprises a motor (24), a power supply unit (22) for powering the motor and a box (20), the motor (24) and the power supply unit (22) being received in a first housing (L1) that is internal to the box (20). The box (20) forms at least one second internal housing (L2, L?2), separated from the first internal housing by a wall (35, 43) of the box, and in which an electrical or electronic component (28, 50) of the actuator is received that is distinct from the motor (24) and from the power supply unit (22). A removable cover (33, 41) isolates the or each second housing (L2, L?2) from the outside of the box (20).

Abstract: A device for automatically moving a curtain along a curtain rail, which device comprises driving means movable along the curtain rail, the curtain being adapted to be coupled to the driving means by way of coupling means, wherein the driving means comprise a toothed belt (2). Preferably, the rail (1) is provided with two toothed belt guide channels (1a, 1b) extending in longitudinal direction of the rail, for the purpose of guiding the toothed belt (2) along the rail (1), the device being provided, adjacent at least a first end of the rail (1), with reversing means (3) for reversing a part of the toothed belt (2) extending out of the one guide channel (1a; 1b) and guiding it to the other guide channel (1b; 1a).

Abstract: A motorized and manual clutch of curtain track, set on a curtain track, the curtain track is provided with a belt which is driven by motor and carrier hook parts which are used to hang curtain. The motorized and manual clutch is composed of a clutch body module and a clutch bar module, the clutch body module and said clutch bar module are detachably connected. A gap is provided on the belt, the clutch body module is set in the gap, connected with the belt and moved with the belt. The clutch bar module is set under the clutch body module connected with the carrier hook parts and moves the carrier hook parts. The application of the new practical motorized and manual clutch of curtain track solves the operation problem when power cut or breakdown motor or electrical circuit. It further improves the practical value of motorized curtain track.

Abstract: A drapery system for moving a suspended drapery fabric allows the drapery fabric to be decoupled from a drive system, such that the drapery fabric may be manually moved. The drapery system comprises a master car comprising a driven portion and a non-driven portion. The driven portion is coupled to a drive belt of the drive system, while the non-driven portion is coupled to the drapery fabric. The master car comprises a spring having a snap adapted to be received in a snap-receiving structure, such that the driven portion is coupled to the non-driven portion. The non-driven portion is operable to move in response to movement of the drive belt to move the drapery fabric when the non-driven portion is coupled to the driven portion. The non-driven portion is operable to be decoupled from the driven portion, such that the position of the drapery fabric may be manually adjusted.

Abstract: The invention concerns a fast door comprising: a structure having in particular two posts (3) in each of which is provided a slide rail (16) and a transverse lintel-forming element (4), and a flexible curtain (12) connected to the structure at the lintel-forming element (4) via electromechanical means controlling the lowering and lifting of the curtain (12), the curtain (12) incorporating at least one flexible reinforcing bar (13, 29) inserted in receiving means provided in the curtain (12), the flexible reinforcing bar (13, 29) capable of being engaged at its ends in each of the slide rails (16) and capable of bending to be released at least from one rail (16) without being subjected to permanent deformation which would impair the operation of the door once reinstalled in its rails.

Abstract: The present invention relates to a self-raising window covering and a control mechanism for the window covering. In particular, the window covering includes a drive unit, such as constant force spring, that is adapted to apply a substantially constant rotational force on the drive axle. A cord winding assembly is coaxially mounted on the drive axle, and includes at least one winding drum operatively connected to a second end of the raising cord and having a tapered portion, as well as a rotatable positioning member for moving the cord winding assembly laterally along the drive axle upon rotation of the positioning member. The cord winding assembly is adapted to translate the rotational force on the drive axle to a raising force on the raising cord, wherein the raising force is greater than a downward force exerted by the shade element and bottom rail throughout the range of opening and closing.

Abstract: The present invention relates to a self-raising window covering and a control mechanism for the window covering. In particular, the window covering includes a drive unit, such as constant force spring, that is adapted to apply a substantially constant rotational force on the drive axle. A cord winding assembly is coaxially mounted on the drive axle, and includes at least one winding drum operatively connected to a second end of the raising cord and having a tapered portion, as well as a rotatable positioning member for moving the cord winding assembly laterally along the drive axle upon rotation of the positioning member. The cord winding assembly is adapted to translate the rotational force on the drive axle to a raising force on the raising cord, wherein the raising force is greater than a downward force exerted by the shade element and bottom rail throughout the range of opening and closing.

Abstract: A curtain assembly includes a first control unit received in the top box, a bottom box in which a second control unit is received, a shade connected between the top bar and the bottom box. Each of the first and second control units includes a fixed member, a movable member and a control member, a rope is wrapped around pulleys in the fixed member and the movable member, and another rope has one end fixed to the movable member and the other end of the rope is wrapped around a spring coil member in the control member. The shade is stretched or collected by moving the bottom box. The top bar is moved away from the top box to define an opened space between the top box and the top bar.

Abstract: The invention relates to a device for detecting an obstacle and limiting the force from the primary edge or sill nosing (10) of a flexible apron or curtain (5) in a goods-handling door (1) when the latter comes into contact with an obstacle (14) as it is being closed. The inventive device comprises safety cells (21, 22) which are positioned and fixed close to each guiding device (8) such as to emit a beam F that is directed along a vertical axis outside of the guide (15) so that the beam is interrupted upon deformation of the flexible curtain or apron (5).

Abstract: A Kabuki device to positionally maintain and release a stage setting responsive to electric current from a power source. A box-like body, defining a medial chamber with a slot communicating therewith, carries a solenoid in the chamber. A movable solenoid arm communicates with a spring biased lever arm that pivots on an offset axle to provide mechanical advantage to one end of the solenoid arm. One metal ring interconnected to the stage setting is inserted through the slot and is positionally maintained by a ring support pin carried by the pivoting lever arm. A finger hole defined in one end of the body allows manual manipulation of the lever arm for resetting. Jumper cables having plural electrical leads allow a plurality of devices to be interconnected in series in multiple predetermined groupings.

Abstract: The present invention relates to a self-raising window covering and a control mechanism for the window covering. In particular, the window covering includes a drive unit, such as constant force spring, that is adapted to apply a substantially constant rotational force on the drive axle. A cord winding assembly is coaxially mounted on the drive axle, and includes at least one winding drum operatively connected to a second end of the raising cord and having a tapered portion, as well as a rotatable positioning member for moving the cord winding assembly laterally along the drive axle upon rotation of the positioning member. The cord winding assembly is adapted to translate the rotational force on the drive axle to a raising force on the raising cord, wherein the raising force is greater than a downward force exerted by the shade element and bottom rail throughout the range of opening and closing.

Abstract: A drapery master carrier for a drapery electric drive system is provided having a built-in wireless transmitter and a sensor to determine whether a manual pull is being applied to the drapes. The sensor is operatively connected to or incorporated into the wireless transmitter such that sensing by the sensor of a manual pull applied to the drapes will activate the wireless transmitter to transmit a signal to a motor drive controller receiver to drive the motor.

Abstract: Various apparatuses, methods and systems for directionally controlling a movable partition are provided. In one embodiment, an apparatus may include at least one roller assembly coupled to a portion of a movable partition. A roller element of the roller assembly may be configured to maintain contact with an adjacent surface (e.g., a floor) while the partition is displaced along a desired path even though the adjacent surface may exhibit unevenness, undulations or other substantially nonplanar surface features. In one embodiment, the apparatus may be configured to maintain a substantially constant force between the roller element and the adjacent surface. In another embodiment, the apparatus may be configured to maintain a force between the roller element and the adjacent surface substantially within a specified range. A steering actuator may also be used to select, or change, the orientation of the roller assembly with respect to the partition.

Abstract: A window covering comprises a flexible panel having a top edge and a bottom edge. At least one lift cord is provided for raising and lowering the bottom edge. Each lift cord is connected to one end of a stiffener at a first point and the opposite end of the stiffener is connected to approximately the bottom edge of the flexible panel. The stiffener prevents the folding of the flexible panel between the bottom edge and the first point. The top edge may be connected to a head rail and the bottom edge may be connected to a bottom rail. A motor may be located adjacent the top rail where the lift cord is connected to the motor.

Abstract: An electric transmission module for window curtains having a winding wheel bridges a power unit and a window curtain set so that the opening/closure of the curtains can be controlled. A string of a set of transmission pieces is wound around a first wheel groove of the winding wheel, and another string of transmission pieces is wound around a second wheel groove of the winding wheel, whereby the forward or backward rotation of the motor urges a synchronic rotation in the winding wheel. The transmission pieces are respectively released at one wheel groove and drawn back at another wheel groove. Compared with the prior art, the transmission module is simple in structure and easy to install. It further improves the problem of sliding between a winding wheel and a transmission string.

Abstract: An electric motor moves drapes on a carrier by a cord wound on a sheave attached to a shaft thereof. The motor is attached to a housing along with a second shaft. The second shaft has an arm on an end thereof and carries a disc with first and second cam surfaces thereon and an axial projection. An arcuate slot on an end cap receives the projection on the disc. In response to an actuation signal, a control activates the motor causing the shaft and sheave to rotate and linearly move the cord and drapes. A limit member on the cord engages the arm and rotates the second shaft causing the first cam to close a first switch and cancel the actuation signal while the second cam closes a second switch such that the rotational direction of the shaft is reversed on receipt of a next actuation signal.

Abstract: A quiet drapery pull system includes an elongated track that receives a master car and auxiliary cars. The track defines a pair of curved surfaces for nested receipt of roller members of the cars to facilitate linear tracking of the cars. The cars preferably include tires that are made from a resilient material to limit noises caused by rolling contact and by slipping and dragging of the tires upon contact with surface imperfections of the track. The drapery pull system preferably includes a drive belt connected to a reversible motor and to the master car for driving the master car in each of opposite directions. The drive belt is preferably made from a resilient material to limit noise associated with contact between the drive belt and drive pulley and between the belt and the track.

Abstract: A quiet drapery pull system includes an elongated track that receives a master car and auxiliary cars. The track defines a pair of curved surfaces for nested receipt of roller members of the cars to facilitate linear tracking of the cars. The cars preferably include tires that are made from a resilient material to limit noises caused by rolling contact and by slipping and dragging of the tires upon contact with surface imperfections of the track. The drapery pull system preferably includes a drive belt connected to a reversible motor and to the master car for driving the master car in each of opposite directions. The drive belt is preferably made from a resilient material to limit noise associated with contact between the drive belt and drive pulley and between the belt and the track.

Abstract: Disclosed is an assembled electromotive curtain for easy installation, simple manipulation, and convenient maintenance. The assembled electromotive curtain allows an opening and closing of the curtain along a rail, and includes a main controller provided with a motor and a control circuit, and a wire driving part received within and fixed by the rail, for transferring a curtain transferring wire using a rotational force of a rotational shaft of a motor.

Abstract: A photoelectric power supply system for motorized window coverings includes a light detector electrically connected to a relatively high dielectric capacitor. In turn, the capacitor is connected to an electric motor, and the capacitor is the primary source of power for the motor. The light detector converts solar energy to electric energy that is used to charge the capacitor. The electric motor utilizes electricity from the capacitor as needed.

Abstract: A swimming pool cover fabric has beads attached to its opposite edges. Each bead is positioned to essentially abut the bead in front to form in effect a segmented rod. A drive mechanism has a sprocket to engage each bead and urge it into and out of the race or slot in a track sized to receive the beads. A reversible motor is connected to drive the sprocket to urge the beads and, in turn, the pool cover fabric between open and closed positions.

Abstract: A remote-controlled motor-driven drum is provided to wind and unwind a cord which holds a self-balancing sign carrier. The sign carrier, which has telescoping rails, is adjustable in width. Its center rail includes two sheaves to receive the cord and lead it from the drum back to an end secured to the ceiling. Rotation of the drum raises and lowers the sign carrier and a sign carried by it. The sheaves on the carrier also serve to make the unit self-balancing. The motor responds to actuating signals for raising and lowering the sign and to safety features. Safety features include a limit switch which stops the motor when an object gets in the way, an overload control which stops the motor if excessive weight is detected, and the use of the motor for braking.

Abstract: Disclosed is an assembled electromotive curtain for easy installation, simple manipulation, and convenient maintenance. The assembled electromotive curtain allows an opening and closing of the curtain along a rail, and includes a main controller provided with a motor and a control circuit, and a wire driving part received within and fixed by the rail, for transferring a curtain transferring wire using a rotational force of a rotational shaft of a motor.

Abstract: A motor-driven unit that can be remotely controlled for moving a curtain fitted on a rail and having an operation cord, includes an electrical power supply, a reversible motor, pulleys suspended on the operation cord with the operation cord being partially housed in a channel over at least part of a perimeter of the pulleys and in such a way that the weight of the unit maintains cohesion between the operation cord and the pulleys, and being enough to compensate for friction exerted by the curtain or the rail itself, the channel having a convergent cross-section, a mass which keeps the operating cord taught, a signal receiver, a remote control for generating a signal for determining movement of the motor in either direction and supplied to the signal receiver, and the mass and electrical supply together formed by an electrical accumulator.

Abstract: A quiet drapery pull system includes an elongated track that receives a master car and auxiliary cars. The track defines a pair of curved surfaces for nested receipt of roller members of the cars to facilitate linear tracking of the cars. The cars preferably include tires that are made from a resilient material to limit noises caused by rolling contact and by slipping and dragging of the tires upon contact with surface imperfections of the track. The drapery pull system preferably includes a drive belt connected to a reversible motor and to the master car for driving the master car in each of opposite directions. The drive belt is preferably made from a resilient material to limit noise associated with contact between the drive belt and drive pulley and between the belt and the track.

Abstract: A device for automatically moving a curtain along a curtain rail, which device comprises driving means movable along the curtain rail, the curtain being adapted to be coupled to the driving means by way of coupling means, wherein the driving means comprise a toothed belt (2). Preferably, the rail (1) is provided with two toothed belt guide channels (1a, 1b) extending in longitudinal direction of the rail, for the purpose of guiding the toothed belt (2) along the rail (1), the device being provided, adjacent at least a first end of the rail (1), with reversing means (3) for reversing a part of the toothed belt (2) extending out of the one guide channel (1a; 1b) and guiding it to the other guide channel (1b; 1a).

Abstract: A motorized fly system winch, drum and carriage combination for raising and lowering, for example, theatre scenery by means of cables and which incorporates functions for emergency braking, for moving the drum in synchronization with relation to the carriage containing cable-guiding means and for driving of a limit switch if desired. The winding and unwinding the cables on or off the drum does not change the cable runs relative to the theatre. The fly system winch can be installed at the sides of the stage, up at the stage gridiron, or above the gridiron. With this combination, counterweights are unnecesary. The fly system winch is compact and can be economically manufactured.

Abstract: An infrared hand-held remote control for handling a single or plural devices such as lights, shades, drapes and the like contains ergonomically selected and placed control buttons that are self-describing and easy to use. It allows explicit, easy-to-use control of different functions by providing for each function to be controlled vertically disposed discrete buttons that provide “all or nothing” control of some physical feature and similar, vertically disposed and horizontally aligned “adjust” buttons that allow for fine and continuous control of the physical quantities between the extremes or limits of the discrete button functions. Successive groups of buttons provide for the control of different appliances or devices, where each group of buttons is identified by easy to comprehend icon or alphabetic representations.

Abstract: Throughway barrier apparatus comprises a pair of housings (51, 52; 151, 152) to be sited one to each side of a throughway (58). Each housing is provided with an upstanding surface (53, 54) of magnetic material, the two surfaces (53, 54) facing one another. A movable device (65) is magnetically coupled to each upstanding surface, and drive means (60) are arranged to move the magnetically coupled device upwardly and downwardly of the surface (53, 54). A barrier element such as a chain, cable, boom or the like extends across the throughway (58), the barrier element (55; 155a, 155b) being in use connected to the two said movable devices (65) for movement therewith.

Abstract: A drapery opening and closing system for opening and closing a single drape or two drapes, and a method of opening and closing a drape. A reversible electric motor, to which a winch member is rotatably coupled, is affixed to a wall proximate a window at an approximate mid-vertical height of such window. An elongate cord having a first end fixed to the wall and another coupled to such winch member, encircles the drape. Upon actuate of the motor, adjustable timing means permits operation of the motor for a predetermined interval of time to allow the elongate cord to be wound onto such winch member, thereby causing the cord encircling the drape to constrict and thereby bunching the drape together thereby drawing it from the window. Reversal of the direction of the winch allows unwinding of the cord to thereby allow the drape to fall back into position thereby covering the window.

Abstract: A drapery actuator to open and close draperies, comprising a housing and a drive pulley supported by the housing to engage a drapery cord coupled to a drape. A motor, typically a D.C. motor, is supported by the housing for providing torque to reversibly rotate the drive pulley to move the drapery cord between a first extreme (typically closed) position and a second extreme (typically open) position. A first electrical switch operatively connected to the motor functions as a cut-out switch and reversing switch to stop the motor from continued turning in a given direction and thereafter switching polarity, to allow the motor to turn in an opposite direction when the switch is re-activated. A torque-activated mechanism is provided, adapted to actuate the first electrical switch when the drive pulley moves the drapery cord to the first position, and is further adapted to actuate the first electrical switch when the drive pulley is reversibly rotated by the motor to move the drapery cord to the second position.

Abstract: A closure member comprises a flexible sheet curved wavily so as to wave in the horizontal direction, and a drive which causes the flexible sheet to wave forward. A closure structure comprises this closure member and is further provided with a wall member on each side of the flexible sheet in the hill-to-valley direction in its side view, which may further be provided with a moving floor beneath the flexible sheet.

Abstract: A runner and guide rail for curtains intended to maintain a line for opening and closing the curtains automatically and constantly to the tension state by intermediately installing elastic members at the connections between the runner and the line. A guide rail for curtains that can be compactly stored and transported by dividing the guide rail body and linking segments with bendable couplers. In addition, a guide rail for manually opened and closed type curtains which can simultaneously open and close right and left curtains by pulling the curtain on one side.

Abstract: A curtain operating assembly has a track 2 with a pulling band 4 and sliding carriages 7, 9. The assembly is also equipped with an electric motor 11 connected to a drive cogwheel 17 and the pulling band. A clutch mechanism allows manual movement of the curtain 8. The drive shaft 33 of the electric motor has an attached claw 22 that may be moved in an axial direction in and out of the drive cogwheel during each rotational direction change of the drive shaft, to thereby engage or disengage the drive shaft.

Abstract: A fully automatic motor driven curtain drawing apparatus which is of a simple, but highly reliable design and one which can be easily adjusted to accommodate windows of widely differing sizes. They can be opened either manually or by an electric motor which can be remotely energized. A timer and a sensor are operably connected to the electric motor and function to energize the motor either at a predetermined time or in response to the sensor sensing daylight and dark.

Abstract: An auto/manual dual-mode curtain rack assembly includes a casing, a movable rack, a plurality of carrier slides, and a driving unit, wherein the casing defining a first track and a second track below the first track; the movable rack is moved along the first track and has at least one magnetic member mounted on a flexible rack body; the carrier slides are moved along the second track to carry a curtain, and have at least one magnetic member provided at least one carrier slide, the at least one magnetic member of the carrier slides being attractive to the magnetic member at the movable rack; the driving unit includes a reversible motor and a gear meshed with the movable rack and driven by the reversible motor to move the movable rack along the first track.