Abstract: A tool for use in the construction and maintenance of elevators and escalators is provided. The tool includes a plurality of rails arranged in a parallel orientation, a plurality of support members connected to the plurality of rails and a plurality of treads attached to the plurality of support members. The plurality of treads is configured to provide a working surface upon which construction or maintenance personnel can stand, sit or kneel. The plurality of treads is further configured to provide a working surface upon which materials can be placed. The tool is configured to bridge gaps formed within the elevators and escalators and bridge gaps formed in building spaces in and around the elevators and escalators.

Abstract: Provided is a plugging device for covering the open ends of the rungs of a ladder. The device includes a pair of plug members and a connection member. The plug members include a plug body to cover the open ends of the rung and sit adjacent to the ladder rail and a gasket configured for insertion into the ladder rung. The gasket is made of a flexible, compressible material to fit snugly within the open end of the ladder rung. The connection member is configured to be passed through the ladder rung and is elastically biased to pull the pair of plug members towards one another, when connected, through the ladder rung and secure them in place in the open ends.

Abstract: Disclosed herein, amongst other things, is a system for providing added safety for workers using rigging systems. In an embodiment, the invention includes a safety device for a roof rigging system including a rigger arm having a proximal end and a distal end; an attachment member disposed on the distal end of the rigger arm, the attachment member defining an aperture, the attachment member configured to engage a rigging line with the aperture; and a blocking member disposed on the distal end of the rigger arm, the blocking member configured to interface with the attachment member to prevent engagement of the attachment member with the rigging line by occluding the aperture when a counterweight is not attached to the roof rigging system.

Abstract: A ladder climbing apparatus is provided for use with a ladder having a plurality of rungs. The ladder climbing apparatus includes a frame, a prime mover mounted to the frame and a power supply electrically connected to the prime mover. A pulley system is mounted to the frame, and is mechanically connected to the prime mover. At least two drive belts are configured so that each of the drive belts pass around the pulley system, and the drive belts are connected to the prime mover by the pulley system. A plurality of gripper elements are attached to each of the drive belts. The ladder climbing apparatus is configured so that a portion of the plurality of gripper elements are in contact with at least four rungs of the ladder during an ascent or descent, so that weight is distributed over the at least four rungs of the ladder.

Abstract: Work platforms are generally discussed herein for providing expanded work space for their users with specific discussions extended to portable work platforms that are mountable on vertical or horizontal poles and the like, such as utility poles, for expanding useful work space. The portable work platform has a deck attached to a base by a beam, which is made from a non-conducting material. A strap assembly having a webbing is connected to the base and configured for use with a ratchet mechanism to tension the webbing around a pole to mount to the platform. The beam enhances electrical isolation between the deck and the base.

Abstract: An improved sawhorse having an elongated body with a channel formed in an upper working surface thereof. The sawhorse also includes a ledger that is sized and shaped to be seated within the channel and a clamp that is operable to secure the ledger to the elongated body. The elongated body further includes a plurality of receptacles that are adapted to receive a corresponding plurality of support legs.

Abstract: A folding sawhorse created by two pivotally connected frames containing a plurality of stress bearing structures on their inner surfaces forms a 60 degree angle when locked in place by a locking shelf. The frame components include two parallel vertical members separated at a distance by an upper horizontal brace and parallel lower horizontal brace. A U-shaped load bearing support is connected to the upper surface of the upper horizontal braces and provides four surfaces across which a load may be distributed when the folding sawhorse is in use. The trapezoidal locking shelf is pivotally connected to the lower horizontal braces and contains a central hinge, allowing the shelf to fold when the sawhorse is collapsed along its central vertical hinge.

Abstract: An adjustable bracket for a tree stand having a mounting plate and a first bracket member and a second bracket member. The mounting plate has a mounting plate locking ring. A threaded shaft which terminates in a brace is extended through the mounting plate locking ring. The mounting plate is connected to the tree stand by the first bracket member and the second bracket member. When the tree stand is positioned in a tree the threaded shaft is rotated through the mounting plate locking ring until the brace engages the tree. In this way the tree stand is stabilizing and adjusted.

Abstract: An adaptor for attaching a first scaffold having a stack pin to a second scaffold having an opening includes a sleeve having an orifice adapted for receiving the stack pin. An exterior surface of the sleeve includes a tapered section to facilitate insertion of the sleeve into the opening so that the second scaffold can be stacked on top of the first scaffold.

Abstract: A mobile lift unit for accessing bulk carrier top openings for use on a variety of bulk carriers that has a safety cage which is extendable to various heights while protecting operators from potential falls during the use thereof.

Abstract: A retractable horizontal lifeline assembly includes a lifeline windable about and paid out from a rotatable drum and a housing. The housing includes a first connector and is configured and arranged to house the drum and the lifeline wound about a base of the drum. The first connector is operatively connected to a first anchorage structure, the lifeline is pulled outward from proximate the housing thereby paying out at least a portion of the lifeline from the drum, a second connector operatively connected to the lifeline is operatively connected to a second anchorage structure, and the lifeline is tensioned using a crank that rotates the drum to increase the tension in the lifeline and provides indication when the tension in the lifeline reaches a predetermined level.

Abstract: A back pad system for use in connection with a safety harness which includes at least two spaced back straps and a connector adapted to be connected to a line or lanyard. In one form, the system includes a back pad having passages through which the two back straps can be passed to be crossed over the connector, an attachment to which the connector can be moveably attached, and at least one member that captures the connector in an upright position upon application of force such as manual force (either directly or indirectly) to the connector to move the connector to the upright position.

Abstract: A platform assembly includes a ladder that comprises a plurality of steps coupled to and extending between a pair of legs. A platform is provided that may be coupled to a selected one of the steps.

Abstract: A folding step stool includes a front rail assembly. The step stool includes a rear rail assembly, pivotally connected to the front rail assembly, having a crossbar. The step stool includes a step pivotally attached to the front rail assembly having notches which fit over the crossbar when the stool is in an open position. The step stool includes a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar. The linkage assembly compresses to allow the notches to fit over the crossbar and the linkage assembly exerting a force to maintain the crossbar in the notches when the stool is in the open position. A method for securing a step stool includes the steps of moving the notches of a step against a crossbar of a rear rail assembly pivotally connected to a front rail assembly of the step stool.

Abstract: The present disclosure relates to a perimetric protection system for buildings undergoing construction including at least two masts (1) spaced from one another and each formed by two vertical U-profiles (1); a horizontal platform (3) supported on at least two horizontal beams (300) attached to the masts by means of first attachment elements or anchors (130). The system further comprises: at least two inclined beams (100) parallel to one another, which are attached: to the masts (1) by means of at least two second attachment elements (110) forming a first angle (?); to the horizontal beams (300) by means of at least two third attachment elements (310) forming a second angle (?); and, the at least two inclined beams (100) having a free end (100a) in the third attachment elements (310), such that their height is greater than the height of the horizontal platform (2); an inclined protective panel (120) attached to said at least two inclined beams (100).

Abstract: The present invention is a 180° rotatable tree stand that has an embodiment that allows the tree stand to be manually manipulated to control the rotation. Another embodiment has the rotation operated and controlled by electric motors and controls in the seat. Another embodiment allows the user to use a remote control to manipulate the seat. The seat will rotate 360° . The tree stand is secure to the tree by a hanger and a cable and pulley system manipulate the rotation and leveling both forward and back ward. It also allows for adjustment from side to side to perfectly level the platform.

Abstract: The present invention relates to a life-saving apparatus and method for escaping from a second floor or a third floor of a burning building, wherein the life-saving apparatus includes a container, a set of wheels, an inflatable pillow, an inflatable slide, a set of canisters full of compressed gas, and a set of activators operatively connected to the canisters.

Abstract: A portable tree stand step providing assistance to hunters when entering and exiting hunting tree stands includes a rope fastened to a lower frame of the tree stand. The rope forms a pair of flexible stepping loops that hang downwardly and into which the hunter can step, thereby allowing the hunter to enter the tree stand. Additionally, each stepping loop of the portable tree stand step is supplied with a foot pad and a length adjustment mechanism, allowing the hunter to position and securely step upon the foot pad when entering the stand.

Abstract: A self-retractable lifeline (“SRL”) having the combination of an active fall arrest braking system and a passive restraint distance limiting mechanism that allows a user to pretension and preset the distance that its cable is capable of paying out. The SRL's cable limiting mechanism includes a pretension assembly, which may include a pair of aligned plates and an actuator that temporarily mobilizes an arbor when the lever is opened. The arbor is affixed to the SRL housing and to an interior of a power spring that rewinds the cable back into the housing when the cable is paid out. The other end of the arbor is in a mechanical relationship to one of the aligned plates that prohibits rotational movement of the arbor when the aligned plates are engaged but allows rotational movement of the arbor when the aligned plates are temporarily disengaged.

Abstract: A lanyard has an energy absorbing section which exhibits an arrest force which goes from at least 3 kilo newtons to at least 5 kilo newtons when subjected to a load of 160 kg which free fell from 5.9 feet.