Abstract: A method and apparatus for counteracting the effects of warpage, distortion and/or tilting of a support track in a sliding closure assembly, such that a door in the sliding closure may be freely moved along the support track, but, when desired, may be secured in one or more locations such that an external force is required to move the sliding fixture from its desired position.

Abstract: A means for the vertical or height adjustment of folding doors comprises a pivot pin assembly utilizing a threaded adjustment bolt with a separate, unthreaded pivot pin. The bolt is threaded into the sleeve above the pivot pin. A lower interior portion of the sleeve includes a polygonal interior cross-section which matches the head of the pin and prevents the pin from rotating. The pivot pin may be held within the sleeve during shipment and installation by a friction fit with a cap positioned in the bottom of the sleeve, or instead a spring may be used between the pivot pin and cap to urge the pin upwardly. Rotation of the bolt vertically adjusts the pin.

Abstract: A pivot assembly employs a pivot block to resist lateral forces and facilitate door alignment. The assembly includes a sleeve, pivot pin, pivot block and jamb bracket. The jamb bracket is connected to a corner between a jamb and a floor. The pivot block mounts on to the jamb bracket with anchors that engage serrations in a slot of the jamb bracket. The pivot block includes two halves resiliently connected at one end and separated by a gap, with a conical socket centered along the gap. A pivot pin is threaded into a sleeve mounted to the lower edge of a door to adjust height. A head on the lower end of the pin engages grooves in the pivot block socket. The pivot block halves separate to accommodate the pivot pin, and to cause the pivot block halves to be anchored in the jamb bracket. To properly align the door, the door is lifted to disengage the pivot pin from the pivot block. Vertical height is adjusted by rotating the pivot pin in the sleeve.

Abstract: An assembly of a track member for suspended doors designed for ceiling or door opening header mounting having a separate fascia member mechanically interlocking therewith and secured in place and laterally supported by a spring member.