Abstract: A mobile mount for attachment of a fall arrest system is provided for example for aircraft and includes a base carried on ground wheels and a support which is adjustable in height upstanding from the base and an arm cantilevered over the base. At least one receptacle is mounted on the arm of the support at a position located over the base for attachment to a personal fall arrest system including a harness for one or more persons, with the receptacle, base and support being designed and arranged to receive a loading from the personal fall arrest system sufficient to accommodate a fall of the person from the elevated structure.

Abstract: An apparatus for use in fall restraint anchoring of workers on an elevated location includes an upstanding post with at least one attachment loop at an upper end. The post is formed by plurality of coaxial cylindrical tubes each mounted as a sliding fit inside the next with each insert tube having a longitudinal groove co-operating with a projecting set screw on the outer tube so as to prevent relative rotation and to locate the limits of movement for aligning holes in the tubes for a locking pin. A jib portion includes a collar located on the smallest tube with a lower edge sitting on the upper edge of the next tube and extends upwardly and outwardly to a tether which extends to the attachment loop.

Abstract: A manhole collar for mounting in a manhole is defined by a tube with rigid strips shaped to form lobes welded around the upper edge with a bottom edge of each lobe for engaging the ground or other surface around the manhole. A support sleeve is mounted on the tube in a recessed notch at an angular location thereon defining a cylindrical receptacle to hold a post standing up from the manhole for a davit or the like. The sleeve extends partly into the tube and partly outwardly and on the outside is supported by one of the lobes and on the inside by a planar chordal gusset plate. The sleeve includes a cylindrical bushing and a clamping pin for clamping the post in the sleeve engaging through a hole in the sleeve against an outer surface of the cylindrical bushing so that threaded adjustment of the pin causes an end of the pin to press against the cylindrical bushing and divert the bushing inwardly.

Abstract: An overload indicator for a load supporting apparatus is arranged to bend during overloading of the apparatus, thereby visually indicating the overload to a user or observer. The indicator features a longitudinal member having a U-shaped cross section defining one central and two side portions. A series of slots extend into each side portion from a side opposite the central portion such that the member will bend concavely with respect to that side, moving opposite ends of the member closer together. The indicator is arranged to extend between connection points on a first member and a second load supporting member of the apparatus in order to bend in response to excessive loading of the second member. The bending moves the connection points of the two members closer together, thus bringing the load closer to the first member.