Abstract: One embodiment provides a method and apparatus for suspending air conditioning duct works from a support structure comprising unistrut type support beams which apparatus includes a plurality of support brackets arranged and configured for being slidably interlockable with the interior of the unistrut beam members. The support brackets can be slid inside the interior of the support beam until adjacent a support beam which support beam can be connected to the support bracket. In like manner additional support brackets can be inserted into the interior of the support beam members to be adjustably located next to their respective support rod. In such manner multiple support rods can be used to support a frame member even where the support rods are not symmetrically located along the length of the support beam as the support bracket can be slid/moved inside the support beam until lining up with its respective support rod.

Abstract: The present invention is a clip for use with a strut that at least partially surrounds a hanger rod for the purpose of providing stiffness to the hanger rod. The clip includes a handle portion, a rod-clamping portion, and a fulcrum spaced away from the handle portion. The fulcrum is for being mounted to the strut. The rod-clamping portion is for forcing the hanger rod into tight engagement with an engagement surface of the strut in response to the handle being actuated to an operational position. The present invention also relates to a hanger rod stiffening system that uses a clip and a strut, whereby a handle of the clip is actuated to force a rod-clamping portion of the clip into tight engagement with an internal surface of the strut.

Abstract: In one embodiment, the invention is method and apparatus for installing a railing system. In one embodiment, a bracket for mounting a rail to a support surface includes a first surface, a second surface positioned in a substantially parallel orientation relative to the first surface, and a third surface connecting the first surface and the second surface, where at least one of the first surface or the second surface has a perimeter that is at least partially curved.

Abstract: In a device for supporting a rail fastened to a sole-plate resting on an anti-vibration pad, the sole-plate is urged towards the supporting structure by at least one adjustable prestressing resilient device acting on the sole-plate so as to apply a defined prestressing force to the anti-vibration pad. Each prestressing resilient device includes a threaded bolt, an adjusting nut and a vertically acting spring assembly which comprises a first spring having a first stiffness, a second spring arranged round the first spring and having a second stiffness higher than said first stiffness, and a device for retaining said first and second springs in such a way that each of said springs is able to act independently from the other one.

Abstract: A bolted rail fastening system for joint bar locations includes a rail mounted in a recessed area of a tie plate with the tie plate being secured to a cross-tie by means of coach screws extending downwardly therethrough. The rail is maintained in the recessed area by a pair of clips positioned at each side of the rail which each engage an upper surface of a joint bar, one joint bar positioned on each side of the rail. Rail connections may thus be secured to the cross-tie there underneath.

Abstract: A bolted rail fastening system comprising a rail mounted in a recessed area of a tie plate with the tie plate being secured to a cross-tie by means of coach screws extending downwardly therethrough. The rail is maintained in the recessed area by a pair of clips positioned at each side of the rail which will remain in position even if the nuts associated therewith become loose.

Abstract: A rail securement clip is disclosed as having a base having an opening therethrough for receiving an anchor projecting from a foundation, a nose extending laterally of the base from the upper portion of the base and overlying the foot of the rail, and a pair of spaced apart fingers affixed to the nose and to an upper portion of the base. The through opening in the base has an orifice positioned in the space between the fingers. The base and fingers form a recess into which the anchor projects. Securement means may be fastened to the anchor and positioned within the recess to hold the apparatus against the rail and thereby secure the rail to the foundation. The nose may include a rubber pad means engaging the foot of the rail to provide an energy absorbing securement of the rail.

Abstract: Track rail joint assemblies with nut and bolt fasteners are disclosed in which a nut restraining plate is interposed on the bolt between the nut and the joint bar. The plate is provided with one or more bendable tabs adjacent the bolt of hole which are bent away from the joint bar against the nut after the nut has been tightened down to effectively lock the nut into position and prevent loosening rotation tended to be caused by vibrational forces of railroad equipment passing over the joint. The plate is formed with the tabs slightly bent to permit bending tools to be slipped over the tabs when the plate is in position under the tightened down nut.