A raking rail panel system includes a raking rail panel that is supported by four pivotable bracket assemblies. Each pivotable bracket assembly includes a rail support bracket that is hinged to a post bracket. Each post bracket is configured to be coupled to a vertical support post. The post brackets each include a gap filling portion that extends from a mounting face of the vertical support posts. The gap filling portions are sized to either fill a long or a short gap between an end baluster and the vertical support post. The four pivotable bracket assemblies facilitate drop-in installation of the rail panel pivoted in a range of rake angles.

An elbow joint connector includes an elbow portion and a locking mechanism detachably coupled to a distal end of the elbow portion. The locking mechanism including a pair of locking members translatable relative to one another along an interface transverse to a longitudinal axis of the elbow joint connector. Divergent translation of the pair of locking members relative to one another along the interface increases a portion of an outer periphery of the locking mechanism to lock the elbow portion to an adjoining member. The elbow joint connector is configured for detachable coupling to an adjoining elbow joint connector and pivotally rotatable relative thereto from a first configuration in which respective center axes of the connectors form an acute angle to a second configuration in which the respective center axes are collinear.

The invention relates to a compound of following formula (I): ##STR00001##
a preparation process, uses thereof and compositions containing the same, wherein R.sub.1 and R.sub.2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R.sub.1 and R.sub.2 ranges from 2 to 7, and where R.sub.1 and R.sub.2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R.sub.1, R.sub.2 and the carbon atom to which R.sub.1 and R.sub.2 are attached has a degree of branching equal to 0, 1 or 2.

A raking rail panel system includes a raking rail panel that is supported by four pivotable bracket assemblies. Each pivotable bracket assembly includes a rail support bracket that is hinged to a post bracket. Each post bracket is configured to be coupled to a vertical support post. The post brackets each include a gap filling portion that extends from a mounting face of the vertical support posts. The gap filling portions are sized to either fill a long or a short gap between an end baluster and the vertical support post. The four pivotable bracket assemblies facilitate drop-in installation of the rail panel pivoted in a range of rake angles.

A rackable railing assembly including a rail having a hollow interior. A series of picket slots are disposed in the rail. A tab strip is carried in the rail. A series of tab slots are laterally spaced along the tab strip. A tab is secured at one end of each of the tab slots and extends partially across the tab slots so that the tabs are bendable in the tab slots. A series of pickets are included having a distal end portion extending through the picket slots in the rail and having an end surface secured against one of the tabs. The pickets pivot in the picket slots causing the tabs to bend relative to the plain of the tab strip to allow the pickets and rail to rack to an angle.

A system for adjusting and fixing sheet-shaped elements for railings including containment means for a protective sheet-shaped element which are provided with a channel for housing the sheet-shaped element and adjusting means for adjusting the position of the sheet-shaped element, wherein the adjusting means include at least one resting and retaining element with substantially L-shaped cross-section provided with seats for the passage of two pins and with two planes for the sliding of adjusting elements, in such a way that the combination of the movements of the adjusting elements caused by the pins generates a rotation of the resting and retaining element which in turn causes a rotation of the sheet-shaped element.

A multi-directional railing support includes a fastener having a first threaded end that attaches to a substrate and a second threaded end. A securing portion is attached to the second threaded end and includes outwardly extending resilient flanges. The securing portion and the second threaded end define a receiving stud. The securing portion is axially adjustable relative to the second threaded end to adjust a clearance space between the securing portion and the substrate. A baluster includes a hollow end that extends over the outwardly extending resilient flanges of the receiving stud. The outwardly extending resilient flanges cooperate with the hollow end to provide for movement of the baluster toward the substrate and contemporaneously prevent movement of the baluster away from the substrate. The outwardly extending resilient flanges bias the baluster toward a rotational axis of the fastener.

The present disclosure relates systems and methods involving movable/adjustable guardrails. An example system includes at least one rotating mount having a lower weldment rotatably coupled to an upper weldment. The lower weldment is coupled to a walking surface. The system also includes a guardrail weldment coupled to the upper weldment of the at least one rotating mount. The system additionally includes an actuator configured to controllably adjust a configuration of the guardrail weldment between an extended configuration and a retracted configuration with respect to the walking surface. In some embodiments, the system could include a remote unit configured to control a position of the actuator. For example, the remote unit could include a wired remote controller having a user interface and at least one button.

The present invention relates to a prefabricated spiral staircase in which the heights between treads can be freely and finely adjusted, thus being conveniently assembled and installed at installation sites having different story heights.

An elbow joint connector includes an elbow portion and a locking mechanism detachably coupled to a distal end of the elbow portion. The locking mechanism including a pair of locking members translatable relative to one another along an interface transverse to a longitudinal axis of the elbow joint connector. Divergent translation of the pair of locking members relative to one another along the interface increases a portion of an outer periphery of the locking mechanism to lock the elbow portion to an adjoining member. The elbow joint connector is configured for detachable coupling to an adjoining elbow joint connector and pivotally rotatable relative thereto from a first configuration in which respective center axes of the connectors form an acute angle to a second configuration in which the respective center axes are collinear.