Abstract: A dismantable hoist for storing and transporting wire rope and for lowering and raising the wire rope from a building roof site including a lightweight frame having a base, lightweight reel, for storing the wire rope, having a central drum and a pair of spaced-apart peripheral rings attached to the drum forming opposed side flanges rotatably mounted in the frame, drive means removably attached to the drum for rotating the drum for lowering and raising the wire rope, and brake means operatively connected to the spaced-apart peripheral rings and normally biased into braking engagement with the peripheral rings to stop lowering of the wire rope upon release of the brake means.

Abstract: A dismantable hoist for storing and transporting wire rope and for lowering and raising the wire rope from a building roof site including a lightweight frame having a base, lightweight reel, for storing the wire rope, having a central drum and a pair of spaced-apart peripheral rings attached to the drum forming opposed side flanges rotatably mounted in the frame, drive means removably attached to the drum for rotating the drum for lowering and raising the wire rope, and brake means operatively connected to the spaced-apart peripheral rings and normally biased into braking engagement with the peripheral rings to stop lowering of the wire rope upon release of the brake means.

Abstract: An anchoring device for use in combination with personnel securing assemblies. The anchoring device is adapted for engagement within a receptacle sized to releasably receive said device. The anchoring device comprises a housing receivable within said receptacle, a pair of opposed locking jaws mounted within said housing and anchoring means secured to said housing. Pivotally connected to said housing are means for releasably extending and retracting said locking jaws into engagement with said receptacle. The locking jaws are operative to engage the receptacle in releasable locking engagement therewith. The anchoring means are functional to have personnel securing assemblies releasably connected thereto.

Abstract: A support generally comprisinga mast component,a boom component extending forwardly from the mast component,and a stabilizing component for maintaining the support in a working disposition. The support may be used in conjunction with a lifting pole for forming a hoist system. The support and hoist system may be used to support or raise and lower an object such as a chute for debris.

Abstract: A pole jack apparatus for travelling up and down a pole including a frame member with a jacking mechanism. A pump lever is utilized for causing the jacking mechanism to engage the pole for upward and downward travel. The jacking mechanism includes an interlock device to ensure that one of two engagement pins is engaged with the pole at all times. A separate spring biased, "dead man" brake is also provided for added safety.

Abstract: A ladder system comprising a plurality of ladder segments arranged in seriatim. Each segment includes two sections joined by a hinge such that a portion of the segment may engage an object to be scaled. A retaining device is provided on each segment to maintain the segment in engagement with the object and each segment includes a riser portion which, when the segments are properly placed, forms the risers of a ladder. Adjacent segments are connected and are positioned in place on the object, by a user who pulls them into position one at a time.

Abstract: A load transfer device and system having double safety cables permitting users to move freely and safely along elevated surfaces comprising a plurality of elongated T-shaped support brackets each having a body portion for anchoring to a support surface and a head portion for receiving a pair of equispaced cables. A load transfer device for slidable travel on the pair of cables and past the support brackets comprises a rectangular plate for receiving a lanyard, said plate having a pair of elongated hook-shaped jaws hingedly secured to each edge of the rectangular plate for receiving a safety cable therein, each said elongated hook-shaped jaw hinged to a side edge of the rectangular plate whereby the said jaw is substantially planar with the plate during no-load conditions and whereby the load transfer device can freely pass a support bracket during no-load conditions.

Abstract: Modular stage platform comprises a pair of parallel, spaced-apart base members each comprising an elongated extrusion having an upstanding wall defining a continuous toe plate and an inwardly facing channel at the bottom thereof, the channels of the pair of spaced apart base members being opposed to each other, a plurality of equispaced transverse tubular members having opposite ends inserted into said opposed channels and secured thereto along said base members, a pair of parallel, spaced-apart midrails, each comprising an elongated U-shaped extrusion having a pair of walls depending downwardly from a web, said walls having opposed ridges formed on their inner sides spaced from the distal ends thereof and spaced from the web to form a continuous, downwardly-facing recess along the length of each rail and an inner box-like cavity, a plurality of equispaced vertical tubular members having their upper ends inserted into said recess and their lower ends abutting the base member channel rigidly secured thereto in

Abstract: A drum hoist or winch in which at least one circular cam lobe mounted eccentrically on an axle overlapping the axle is interconnected with a like circular cam lobe mounted on a second axle by inboard linkage whereby rotation of one axle will rotate the other axle in unison. A hoist drum mounted concentrically with at least one of the axles can thus be rotated in unison with the other axle to wind or unwind one or more cables thereon.A preferred embodiment has three circular cam lobes mounted eccentrically on each axle 120.degree. angularly out of phase with each other with an inboard link plate interconnecting a cam lobe on each axle in rotatable relation.A brake mechanism mounted on an axle has components normally frictionally engaged which rotate as a unit. Sliding frictional motion to slow down and positively brake the hoist to a stop is provided only when rotary speed of the axle exceeds a predetermined speed.