Abstract: A system to provide security from forced entry or from ballistic missiles and for converting an existing non-secure glazing system into a secure glazing system where the conversion occurs at the exterior of the wall enclosure without disturbing the interior of the enclosure, or any of the originally installed main framing.

Abstract: A transparent enclosure for automatic metal shaping machinery effective to contain cutting fluids, chips, shavings, broken tools and the like having a smooth planar interior wall surface for shedding readily chips, fluids and other matter striking the wall during the course of machine operation.

Abstract: A panel mounting system and method for mounting panels employing a panel mounting temporary retainer for holding adjacent panels in place during glazing with and curing of structural silicone sealant or other suitable adhesive wherein the retainer is readily accepted by the structural member without the need of drilling and tapping holes in the member and wherein the retainer is readily installed from the interior of the building.

Abstract: A revolving door assembly comprising a cylindrical vertically extended door housing, a vertically mounted door comprising a plurality of radially extended leaves connected to a central axis, and a canopy mounted above said door and integral with said housing, said canopy having mounted therein a linearly elongated radiant energy emitting device providing a rectangular, planar energy field, said device mounted in radial relation to the axis of said door and adapted upon the interruption of any portion of the energy field thereof to actuate the locking of said door in position whereby escape from a portion of said housing is prevented.

Abstract: A longitudinally reciprocable roller carrier useful in both a horizontal and a vertical track to support various live and dead loads which comprises a pair of juxtaposed track members of generally H-shaped cross section, a connecting track of generally I-shaped cross section located therebetween, and roller motive means connected to said connecting track and one of said track members facilitating the rollable reciprocation of said track members with respect to each other. The roller motive means comprises a plurality of strategically placed paired rollers located within the substantially enclosed track sections of the first and second track members which permit the carrier to support a continuously moving load in a cantilevered configuration.