Abstract: A building structure includes a web joist having a beam element with a laterally extending flange and a depending flange. A sway brace is attached to the laterally extending flange using a plate clamp with fixed and opposed screw jaws to grip the flange. A pipe clamp having a circumferential body which can tighten to retain a pipe is arranged so that the axis of the pipe extends beneath the depending flange of the beam element. A link, pivotally mounted at each end, extends between an upper portion of the plate clamp and the pipe clamp. The plate clamp is locked in place, the pipe is moved to the proximity of the depending flange and the pipe clamp is locked as far from the plate clamp as possible.

Abstract: A sway brace including a U-shaped sling with flanges at each end. The flanges are mounted to two mounting fixtures including block bodies and passages therethrough. Mounting surfaces on the fixtures receive the flanges of the U-shaped sling. Threaded members affix the flanges to the mounting surfaces of the mounting fixtures. The sling includes metal strapping formed in a U-shaped curve about an axis perpendicular to the width of the strapping in a manner to create rigidity and strength.

Abstract: A clamp assembly including a C-type clamp having an anvil, an opposed screw and a body therebetween is employed in securing a load to a flange of a structural beam. A plate includes a first portion having a locking texture on each side and a second portion offset from the first portion and having a mounting hole therethrough. The mounting hole receives the body of the C-type clamp with a clearance fit and with the locking texture in juxtaposition with the anvil of the C-type clamp. This plate provides a retaining key of hard steel to engage the anvil of the C-type clamp and the flange of a beam structure to enhance retention of the C-type clamp on the beam flange.

Abstract: A sway brace including a U-shaped strap with flanges at each end. The flanges are mounted to two mounting fixtures including block bodies and passages therethrough. Mounting surfaces on the fixtures are parallel to the centerline of the passage to receive the flanges of the U-shaped strap. Threaded members affix the flanges to the mounting surfaces of the mounting fixtures. The threads are placed symmetrically of the centerline of the passage and displaced from one another.

Abstract: A sway brace including a U-shaped strap with flanges at each end. The flanges are mounted to two mounting fixtures including block bodies and passages therethrough. Mounting surfaces on the fixtures receive the flanges of the U-shaped strap. Threaded members affix the flanges to the mounting surfaces of the mounting fixtures. The passages each have a cross section which is bounded by a locus of points defined by a first circle having a first diameter, a second circle having a second, smaller diameter and partially overlapping the first circle and a common tangent to the first and second circles. The smaller circle extends away from a setscrew which is perpendicular to the plane of the U-shaped strap.

Abstract: A sway brace clamp supporting pipe of specified outside diameter with mill tolerance includes two elongate bars with each bar having an arcuate section and two straight sections on either end of the arcuate section. Each straight section has an attachment surface which can be placed against the corresponding surface on the other elongate bar. The fasteners retain the two bars together at the attachment surfaces. The arcuate section of each bar is such that when employed with the attachment surfaces of the two bars engaged about a pipe, the center of curvature of each section is substantially co-incident with the center of curvature of the other section. In a relaxed state, each center of curvature extends a bit beyond the attachment surface in order that a predictable amount of mounting force can be applied by the clamp. A sway brace of known design mounts the clamp to a building structure.

Abstract: A fire sprinkler mount including a base (26), a bracket (46) and a rod (60) mounting the bracket (46) to the base (26). The base (26) includes a body (28) attachable to a beam (10) with two arms (38, 40) extending therefrom. Support holes (42, 44) extend through the arms (38, 40). The bracket (46) includes a plate (48) with a retaining hole (58) to receive a standard sprinkler fitting (16, 20). The rod (60) is able to rotate within the support holes (42, 44) and is threaded to a mounting hole (56) in the bracket (46) for vertical adjustment of the bracket (46) retaining the sprinkler fitting (16, 20). The base (26) also includes a support having a body (28) and attachment wings (30, 32). The body (28) can be in a displaced parallel plane to that of the attachment wings (30, 32).

Abstract: An offset beam clamp having a deep channel including two legs, a hole in the channel bottom, and a slot having two sides and a slot bottom and extending transversely through the legs. The slot receives the first of two angle iron members that comprise the upper cord of a web joist. A J-bolt is anchored to the second angle iron member and extends through the hole in the channel bottom where an angle bracket is secured on the bolt. A threaded mounting shaft is attached to the angle bracket.

Abstract: A fire sprinkler mount including a base, a bracket and a screw mounting the bracket to the base. The base includes a support attachable to a beam with two arms extending therefrom. Support holes extend through the arms. The bracket includes two parallel plates spaced to receive a standard sprinkler fitting. A cradle is provided at one of the plates while a retaining hole is provided on the other. The screw is able to rotate within the support holes and is threaded to a mounting hole in the bracket for vertical adjustment of the bracket retaining the sprinkler fitting.

Abstract: A seismic adapter for attachment to a steel web joist. The joist includes a pair of angled elements which extend parallel to one another with a cord space therebetween. The adapter includes an anchor plate juxtaposed with the upper surface of the element pair and an engagement plate engaging the parallel edges of the legs of the element pair. A threaded stud attaches to the anchor plate and extends through the engagement plate. The extension of the stud provides for the attachment to a hanger adapter brought together by a nut on the stud. The engagement plate includes a flat anchor portion and upstanding engagement portions having distal edges with interlocking engagement profiles including a tongue and outwardly extending shoulders to receive the parallel edges of the angle element pair.

Abstract: A fire sprinkler mount including a base, a bracket and a screw mounting the bracket to the base. The base includes a support attachable to a beam with two arms extending therefrom. Support holes extend through the arms. The bracket includes two parallel plates spaced to receive a standard sprinkler fitting. A cradle is provided at one of the plates while a retaining hole is provided on the other. The screw is able to rotate within the support holes and is threaded to a mounting hole in the bracket for vertical adjustment of the bracket retaining the sprinkler fitting.

Abstract: A fire sprinkler mount including a base (26), a bracket (46) and a rod (60) mounting the bracket (46) to the base (26). The base (26) includes a body (28) attachable to a beam (10) with two arms (38, 40) extending therefrom. Support holes (42, 44) extend through the arms (38, 40). The bracket (46) includes a plate (48) with a retaining hole (58) to receive a standard sprinkler fitting (16, 20). The rod (60) is able to rotate within the support holes (42, 44) and is threaded to a mounting hole (56) in the bracket (46) for vertical adjustment of the bracket (46) retaining the sprinkler fitting (16, 20). The base (26) also includes a support having a body (28) and attachment wings (30, 32). The body (28) can be in a displaced parallel plane to that of the attachment wings (30, 32).

Abstract: A fire sprinkler mount including a base, a bracket and a screw mounting the bracket to the base. The base includes a support attachable to a beam with two arms extending therefrom. Support holes extend through the arms. The bracket includes two parallel plates spaced to receive a standard sprinkler fitting. A cradle is provided at one of the plates while a retaining hole is provided on the other. The screw is able to rotate within the support holes and is threaded to a mounting hole in the bracket for vertical adjustment of the bracket retaining the sprinkler fitting.

Abstract: A fire sprinkler mount including a base, a bracket and a screw mounting the bracket to the base. The base includes a support attachable to a beam with two arms extending therefrom. Support holes extend through the arms. The bracket includes two parallel plates spaced to receive a standard sprinkler fitting. A cradle is provided at one of the plates while a retaining hole is provided on the other. The screw is able to rotate within the support holes and is threaded to a mounting hole in the bracket for vertical adjustment of the bracket retaining the sprinkler fitting.

Abstract: A double offset hanger which is an integrally formed metal sheet including a plate formed to define a base and a mounting flange. The mounting flange adjacent and perpendicular to the base. The base including a hole therethrough, the hole forming a retainer comprising a wall defining a cylinder, the cylinder extending perpendicular to the base, the cylinder having a centerline offset in perpendicular and parallel directions from the mounting flange.

Abstract: An offset hanger which is integrally formed form metal sheet includes two mounting flanges for attachment to a supporting structure, legs extending from the mounting flanges and a cylindrically shaped retainer fixed to the legs. The retainer defines a sector of a cylinder greater than 180°. The legs diverge from one another from the retainer and include longitudinally extending ribs with side flanges. The ribs are channel shaped in cross section and extend from the mounting flange to a tangent with the retainer. The sides of the channel shaped ribs are substantially triangular.

Abstract: A seismic adapter for attachment to a steel web joist is disclosed. The joist includes two beams with the upper beam having a web depending therefrom. Cord elements extend between the beams at inclined angles. The adapter includes two anchor plates joined at one of the ends of each at a right angle. A mounting plate with a hole extending centrally therethrough is mounted to the anchor plates and extends across the angle on one side thereof. Clamps are arranged at the distal ends of the anchor plates and include an anvil extending from each anchor plate and a threaded hole aligned with the anchor plate to receive a threaded shaft engaged with the threaded hole and extendible to the anvil. The threaded shaft may include a convex end to be received by a concave seat in the anvil to deform thin webs positioned therebetween.

Abstract: An alarm valve system includes a valve body, a valve seat in the valve body with a groove in the sealing face of the seat. A valve element is positioned to seat on the sealing face. A vent extends from the groove in the valve seat to be in communication with a flow alarm and an accumulator alarm. The accumulator alarm includes a cavity with an opening above and a liquid level switch in the cavity. A drain valve is below the cavity.

Abstract: An angle bracket including a mounting plate and having an attachment flange extending from the mounting plate at substantially 90° from one end thereof. The mounting plate includes a central mounting hole and six peripheral mounting holes symmetrically disposed about the central mounting hole. The attachment flange includes a threaded attachment hole therethrough. Two of the six peripheral mounting holes, the central mounting hole and the attachment hole are aligned.

Abstract: A sway brace including a U-shaped strap and mounting fixtures associated with the ends of the U-shaped strap. The strap includes flanges extending from the ends to threadably receive set screws. The mounting fixtures include sidewalls through which holes extend. A tie may extend through the mounting fixtures and be fixed thereto by the set screws binding the pipe against the mounting fixture holes. A bracket coupled with the pipe may be bolted to a structural member to retain the entire assembly from swaying.