Abstract: This invention simplifies reworking of structures such as buildings having load bearing beam girders embedded therein with limited access thereto for increasing the load bearing capacity of the girders. It also permits the increase of load bearing capacity of steel I-beam girders without welding therefore eliminating the fire danger of welding strengthening members thereto. The rework of the in-situ embedded beam is accomplished with minimal building damage. Thus, the building need be reworked only to gain access to two ends of the I-beam girders and a mid-region load bearing position on the lower flange of the I-beam. A flexible tension load bearing member such as a chain is then strung alongside the I-beam web portion end to end and hooked over the top flange. Thus existing pipes, ducts and wiring need not be disturbed. The mid-section of the chain is then attached in a load bearing capacity to the lower flange, preferably by a post tension controlling adjustable link controlling the chain tension.

Abstract: A system of hanging objects and adjusting their vertical position provides verically disposed rods upon which spring biased hanger straps are locked in place against downward vertical movement. Thus, in a picture gallery or the like, frequent manual adjustments and alignments may be made by simply manually moving the hanger straps vertically after overcoming the spring bias. The straps are simply L or J shaped metal straps with a hole in a positioning leg passing over a slightly smaller rod and a parallel strap spring affixed thereto extending over the hole to deflect the spring when on the rod for locking the strap vertically in place by eccentric action of the aperture against the rod until the spring bias is manually overcome for adjustment of the vertical position. The strap has a hanger portion extending downwardly so that the weight of an object, such as a picture mounted thereon more tightly locks the hanger in place.