Abstract: A movable partition system includes a movable partition, a floating jamb attached to an end of the movable partition and located within a pocket configured to retain the movable partition when in a retracted position, at least two base plates attached to the floating jamb, and at least two jamb stops attached to opposing interior walls of the pocket. Each of the at least two jamb stops are configured to engage a respective base plate of the floating jamb, wherein the floating jamb, the at least two base plates, and the at least two jamb stops are configured such that disengaging the floating jamb from a secure position within the pocket when the movable partition is in an extended position requires disengaging one of the at least two jamb stops from the respective base plate on each side of the movable partition. Methods of providing a security barrier are disclosed.

Abstract: Movable partitions may include leading end assemblies comprising an articulated leading member. The articulated leading member may be coupled to a support trolley, and at least one coupling between the articulated leading member and the trolley enables the articulated leading member to move relative to the support trolley. Methods of operating a movable partition include displacing a portion of a leading end assembly to align a majority of at least one surface of the leading end assembly with a portion of an adjacent structure.

Abstract: A movable partition system includes a movable partition, a floating jamb attached to an end of the movable partition and located within a pocket configured to retain the movable partition when in a retracted position, at least two base plates attached to the floating jamb, and at least two jamb stops attached to opposing interior walls of the pocket. Each of the at least two jamb stops are configured to engage a respective base plate of the floating jamb, wherein the floating jamb, the at least two base plates, and the at least two jamb stops are configured such that disengaging the floating jamb from a secure position within the pocket when the movable partition is in an extended position requires disengaging one of the at least two jamb stops from the respective base plate on each side of the movable partition. Methods of providing a security barrier are disclosed.

Abstract: A movable partition system includes a movable partition, a floating jamb attached to an end of the movable partition and located within a pocket configured to retain the movable partition when in a retracted position, at least two base plates attached to the floating jamb, and at least two jamb stops attached to opposing interior walls of the pocket. Each of the at least two jamb stops are configured to engage a respective base plate of the floating jamb, wherein the floating jamb, the at least two base plates, and the at least two jamb stops are configured such that disengaging the floating jamb from a secure position within the pocket when the movable partition is in an extended position requires disengaging one of the at least two jamb stops from the respective base plate on each side of the movable partition. Methods of providing a security barrier are disclosed.

Abstract: A movable partition system includes a movable partition, a floating jamb attached to an end of the movable partition and located within a pocket configured to retain the movable partition when in a retracted position, at least two base plates attached to the floating jamb, and at least two jamb stops attached to opposing interior walls of the pocket. Each of the at least two jamb stops are configured to engage a respective base plate of the floating jamb, wherein the floating jamb, the at least two base plates, and the at least two jamb stops are configured such that disengaging the floating jamb from a secure position within the pocket when the movable partition is in an extended position requires disengaging one of the at least two jamb stops from the respective base plate on each side of the movable partition. Methods of providing a security barrier are disclosed.

Abstract: Header assemblies for movable partitions comprise an overhead track. A header pan is configured to abut against and be secured to the overhead track and comprises at least two header pan members defining opposing lateral portions of the header pan. The header pan is configured to form at least a portion of a fire-resistant barrier. Methods of forming fire-resistant header assemblies comprise forming a first header pan member to define a first lateral portion of a header pan. A second header pan member is formed to define a second, opposing lateral portion of the header pan. The header pan is configured to extend laterally across a header space between a wall of an adjoining structure and an opposing wall of the adjoining structure and to at least substantially longitudinally occlude the header space when the first and second header pan members jointly form the header pan.

Abstract: Leading end assemblies for movable partitions may include a movable trolley, a leading structure coupled to the movable trolley, a diagonal member comprising at least one movable feature enabling the leading structure to move from an initial position to a displaced position, and at least one sensor for sensing movement of the leading structure. Movable partition systems may include a leading structure suspended from a trolley and a sensor configured to sense rotation of the leading structure relative to the trolley. Methods of operating a movable partition may include moving at least a portion of a movable partition along a path from a retracted position to an extended position, rotating a leading structure of the movable partition about a coupling, using a sensor to sense rotation of the leading structure, and ceasing movement of the movable partition in response to a signal generated by the sensor.

Abstract: Wire trolleys for use with a movable partition system comprise a wire-supporting member through which wire may be inserted. At least one roller configured for insertion into a track along which a movable partition extends is connected to the wire-supporting member. Movable partition systems comprise a track. A movable partition comprising at least two sheets of panels extending at least substantially parallel to one another and distanced from one another to define an interior space between the at least two sheets of panels are suspended from and movable along the track. At least one wire trolley located in the interior space between a proximal end and a distal end of the at least two sheets of panels comprises at least one roller in rolling engagement with the track and a wire-supporting member at least partially supporting at least one wire inserted through the wire-supporting member.

Abstract: Header assemblies for movable partitions comprise an overhead track. A header pan is configured to abut against and be secured to the overhead track and comprises at least two header pan members defining opposing lateral portions of the header pan. The header pan is configured to form at least a portion of a fire-resistant barrier. Methods of forming fire-resistant header assemblies comprise forming a first header pan member to define a first lateral portion of a header pan. A second header pan member is formed to define a second, opposing lateral portion of the header pan. The header pan is configured to extend laterally across a header space between a wall of an adjoining structure and an opposing wall of the adjoining structure and to at least substantially longitudinally occlude the header space when the first and second header pan members jointly form the header pan.

Abstract: Movable partition systems comprise a movable partition comprising at least one sheet of hingedly interconnected panels connectable to a lead post at an end of the movable partition. A striker configured to be disposed in a recess having a width formed in a wall toward which the movable partition is extendable comprises two sidewalls and a rear wall directly connected to the sidewalls defining a cavity having another, smaller width configured to receive the lead post at least partially therein. Such a striker may also include two flanges, each flange connected one of the two sidewalls and extending away from the cavity for a length greater than a difference in distance between the width of the cavity at its widest point and the width of the recess.

Abstract: Leading end assemblies for movable partitions may include a movable trolley, a leading structure coupled to the movable trolley, a diagonal member comprising at least one movable feature enabling the leading structure to translate from an initial position to a displaced position, and at least one sensor for sensing movement of the leading structure. Movable partition systems may include a leading structure suspended from a trolley and a sensor configured to sense rotation of the leading structure relative to the trolley. Methods of operating a movable partition may include moving at least a portion of a movable partition along a path from a retracted position to an extended position, rotating a leading structure of the movable partition about a coupling, using a sensor to sense rotation of the leading structure, and ceasing movement of the movable partition in response to a signal generated by the sensor.

Abstract: Wire trolleys for use with a movable partition system comprise a wire-supporting member through which wire may be inserted. At least one roller configured for insertion into a track along which a movable partition extends is connected to the wire-supporting member. Movable partition systems comprise a track. A movable partition comprising at least two sheets of panels extending at least substantially parallel to one another and distanced from one another to define an interior space between the at least two sheets of panels are suspended from and movable along the track. At least one wire trolley located in the interior space between a proximal end and a distal end of the at least two movable partitions comprises at least one roller in rolling engagement with the track and a wire-supporting member at least partially supporting at least one wire inserted through the wire-supporting member.