Abstract: An adjustable hanger assembly for hanging support rods or ceiling fixtures includes two adjacent spanning angles or channels having at least one clamp assembly at each end thereof and at least one fixture hanging assembly disposed between the ends of the spanning angles or channels. The clamp for use with joists utilizing angles includes legged and washer clamp plates, fastener, and fastening device. The clamp for use with beams utilizing angles includes alternate legged clamp plate, fastener hook, and fastening device. The fixture hanging assembly includes legged and washer fixture plate, hanger rod with threaded end, and fastening. Each legged clamp plates, alternate legged clamp plates, and legged fixture plates is adapted to ride horizontally along top of spanning angles or channels. The load bearing capacity of the angles or channels is increased by bracing these members against each other at clamp assembly and fixture hanging assembly locations.

Abstract: A support system securable between pairs of metal bar joists or beams includes one or more end brackets secured to the top of a first bar joist at one end, and another corresponding number of end brackets secured to the top of a second bar joist opposite the first two end brackets. One or more elongate bars span the distance separating the bar joists. Each elongate bar is secured to one of the end brackets secured to the first bar joist at a first end, and to the respective, aligned end bracket secured to the second bar joist at a second end. Cross members, each defined by a pair T-shaped bracket assemblies having cross bars secured thereto, are secured between the elongate bars.

Abstract: A support system securable between pairs of metal bar joists or beams includes one or more end brackets secured to the top of a first bar joist at one end, and another corresponding number of end brackets secured to the top of a second bar joist opposite the first two end brackets. One or more elongate bars span the distance separating the bar joists. Each elongate bar is secured to one of the end brackets secured to the first bar joist at a first end, and to the respective, aligned end bracket secured to the second bar joist at a second end. Cross members, each defined by a pair T-shaped bracket assemblies having cross bars secured thereto, are secured between the elongate bars.

Abstract: An adjustable hanger assembly for hanging support rods or ceiling fixtures includes two adjacent spanning angles or channels having at least one clamp assembly at each end thereof and at least one fixture hanging assembly disposed between the ends of the spanning angles or channels. The clamp for use with joists utilizing angles includes legged and washer clamp plates, fastener, and fastening device. The clamp for use with beams utilizing angles includes alternate legged clamp plate, fastener hook, and fastening device. The fixture hanging assembly includes legged and washer fixture plate, hanger rod with threaded end, and fastening. Each legged clamp plates, alternate legged clamp plates, and legged fixture plates is adapted to ride horizontally along top of spanning angles or channels. The load bearing capacity of the angles or channels is increased by bracing these members against each other at clamp assembly and fixture hanging assembly locations.

Abstract: A clamp for use with metal bar joists (or beams) has one or more steel angled bracket members or plates, adapted to fit under the corrugations of a corrugated steel roof. Each plate of the clamp is adapted to sit horizontally across a top of the bar joist perpendicular to the joist, and extend slightly over an edge of the joist. Each plate contains an elongate slot allowing a bolt to be inserted through the slot. A retainer heel clip is secured to an end of each such bolt. This retainer heel clip is tightened to the underside of the top flange of the bar joist using a washer and a threaded plate or nut, thus providing a clamping action. Each clamp has a vertical attachment tongue section of steel welded to it, including one or more elongate slots which complement perforations that occur along the length of a steel framing angle, allowing bolts to attach the clamp and the framing angle together.

Abstract: A clamp for use with metal bar joists (or beams) has one or more steel angled bracket members or plates, adapted to fit under the corrugations of a corrugated steel roof. Each plate of the clamp is adapted to sit horizontally across a top of the bar joist perpendicular to the joist, and extend slightly over an edge of the joist. Each plate contains an elongate slot allowing a bolt to be inserted through the slot. A retainer heel clip is secured to an end of each such bolt. This retainer heel clip is tightened to the underside of the top flange of the bar joist using a washer and a threaded plate or nut, thus providing a clamping action. Each clamp has a vertical attachment tongue section of steel welded to it, including one or more elongate slots which complement perforations that occur along the length of a steel framing angle, allowing bolts to attach the clamp and the framing angle together.