Abstract: An emergency escape mechanism is disclosed. A deployable and inflatable slide is located proximate the exit door of a building. When the alarm switch on the alarm box next to the door is set to unlock the door may be opened and a chute or slide falls out to the exterior of the building. A mercury switch or the like is activated as the uninflated slide tilts out which activates an inflation means, preferably a compressed gas cylinder or the like. The slide or chute is anchored to the building by a girt bar anchored in the floor and a plurality of chute support straps. This allows for rapid evacuation of the building. Additionally, the alarm box switch may operate a silent alarm to alert the police of a potentially hazardous situation.

Abstract: The disclosure relates to portable staircases having a staircase assembly including an outer staircase and an inner staircase that can move in a telescoping relationship with respect to the outer staircase. Portable staircases of the disclosure are particularly useful for accessing an oil drilling rig as they are independently supported with respect to the drilling rig, thus providing numerous safety improvements and advantages. Methods of using the portable staircases of the disclosure are also disclosed.

Abstract: A pool ladder may have a first and second leg extension, each having a generally continuous profile; a first tread may comprise first and second through-holes, the first through-hole being sized to slidingly receive the generally continuous profile of the first leg extension, and the second through-hole being sized to slidingly receive the generally continuous profile of the second leg extension; and a first and second tread support. The first tread support may be engaged at a tread location on the first leg extension and may be separate from the first leg extension. The second tread support may be engaged at a tread location on the second leg extension and may be separate from the second leg extension. Each of the first and second tread supports may protrude from the respective leg extension a sufficient amount to prevent the first and second through-holes from sliding past the tread locations.

Abstract: A coupling system (10) for coupling together elongate members (6) is described. The coupling system (10) comprises a mounting member (1) having a mounting surface (8). A first locating member (2) is mounted on the mounting member (1) and a second locating member (2) is adapted to be mounted on the mounting member (1), in use. A number of support members (3) are provided and each support member (3) comprises two locating member engagement formations (31, 32), a mounting member engagement surface (27) and a first elongate member support formation (28). The engagement surface (27) of a support member (3) is adapted to be engaged with the mounting surface (8) of the mounting member (1) and one locating member engagement formation (31, 32) is adapted to be engaged with each locating member (2) to mount the support member (3) on the mounting member (1).

Abstract: The present disclosure discloses a folding ladder and a top tray thereof. The top tray comprises a fixed plate and a movable plate. The movable plate is disposed on a rear side of the fixed plate and is rotatably connected to the fixed plate, and the movable plate is configured to be rotated to switch between an unfolded position and a folded position. When the movable plate is in the unfolded position, the movable plate is horizontally arranged side-by-side with the fixed plate, and a rear surface of the fixed plate abuts a front surface of the movable plate to maintain the movable plate in a horizontal position and to resist a downward force of gravity. When the movable plate is subjected to an upward pushing force and is rotated to be folded into the folded position, the movable plate abuts the rear side of the fixed plate.

Abstract: A moveable climbing system includes at least one step, a first set of legs, a second set of legs, a first set of wheels operatively connected to the first set of legs, a second set of wheels operatively connected to the second set of legs, and a motor operatively connected to the first set of wheels, configured to rotate the first set of wheels. The climbing system may further include a battery for providing electric supply for the motor. The at least one step may include a rung of a ladder. The at least one step may include a board of a scaffold. The climbing system may further include a motor box housing the electric motor, wherein the motor box may be configured to operatively connect to and disconnect from the at least one step.

Abstract: An multi-position ladder is disclosed that includes an adjustable top cap that provides a tool or material tool tray when the ladder is in a stepladder position and provides a step when the ladder is in an extension ladder position is disclosed. The top cap generally comprises a rigid frame extending between the adjustable hinges of the multi-position ladder with a tool or utility tray and a step surface on opposing sides. The tool tray is parallel to the ladder rungs when the ladder is in a stepladder position, and the step surface provides a generally planar surface parallel the rungs when the ladder is in an extension position. The rigid frame of the top cap adds strength to the adjustment hinge and to the multi-position ladder. Embodiments allow for 12-inch hinge spacing, adding one foot reach in the extension position and six inch reach to the stepladder.

Abstract: A lift device includes a base, a platform configured to support an operator, and a scissor assembly coupling the base to the platform. The scissor assembly includes an actuator configured to extend and retract the scissor assembly to move the platform between a fully raised position and a fully lowered position, a first scissor arm pivotally coupled to a second scissor arm, and a prop pivotally coupled to the first scissor arm such that the prop rotates about a lateral axis. The prop is configured to selectively engage an engagement surface defined by at least one of the second scissor arm and a protrusion coupled to the second scissor arm, thereby preventing the platform from reaching the fully lowered position.

Abstract: A guardrail mounting bracket for a staircase includes an upper clamping bracket comprising an upper post engagement portion and an upper stair engagement portion, the upper stair engagement portion defining an upper stair engagement surface; a lower clamping bracket comprising a lower post engagement portion and a lower stair engagement portion, the lower stair engagement portion defining a lower stair engagement surface; and a front clamping bracket coupled to the lower clamping bracket and defining a front stair engagement portion.

Abstract: The invention relates to a ladder stabiliser that obviates the existing requirement for a leaning ladder to be physically secured to a building and/or “footed” near the ground by a second person. The stabiliser comprises a base (12) for supporting, in use, both feet of a ladder (100); and upstanding walls (14, 16, 18, 20) defining an open-topped three-dimensional space for accommodating, and at least partially enclosing, the lower distal ends of a ladder (100) at a predetermined optimum angle of inclination. At least one wall (14, 16, 18, 20) extends above the height of the lowermost rung of an inclined ladder (100). A pivotable wall (18) is openable to allow the ladder (100) to be inserted and removed from the stabiliser. The stabiliser may be provided with removable ballast weights (30), and adjustable clamps (36).

Abstract: A ladder stabilizer comprises a pair of stabilizer brackets attached to the ladder side rails at the bottom on either side. Each bracket has a C-shaped clamping mechanism that utilizes a toothed gear rack which engages/disengages with mating teeth of a corresponding gear rack on the ladder rail. The gear-like engagement of the teeth provides a positive locking of the attachment member to the ladder. A spring and locking screw allow ease of adjustment and a positive lock at the desired location along the ladder side rail. The rack is attached longitudinally along the length of each rail to provide a range of length adjustment to the feet. This permits one side to be longer than the other to accommodate a laterally sloping terrain. The brackets have rotatable, laterally extending A-frames with ground-engaging feet which self-adjust to a terrain which is sloping from front-to-back or vice versa.

Abstract: A ladder comprises a front leg and a rear leg connected by a slider bracket. The slider bracket comprises a base and a track. The base comprises an aperture therein. The track extends away from the base and comprises a slot therein. The base is rotatably coupled to the front leg by a front pin in the aperture. The track is slidably coupled to the rear leg by a rear pin in the slot. When spreading the rear leg away from the front leg, the base pivots around the front pin as the rear pin slides in the slot of the track until the rear pin reaches the end of the slot in the track. The slot also may include a latch at the end of the slot that engages the rear pin.

Abstract: A modular guard rail for construction scaffolding includes first and second vertical support members and horizontal rails defining a guard rail frame. Support brackets are provided for engaging respective vertical posts of the construction scaffolding and a horizontal supporting strut of the construction scaffolding.

Abstract: An escape system for providing an escape route out of a building is discloses. The system comprises a ladder, and at least one anchor element at a position distant from the proximal end of the ladder. The ladder is extendible between a collapsed storage configuration and an extended use configuration. The ladder comprises a plurality of essentially rigid ladder segments, each ladder segment comprising at least one rung and being displaceable in relation to the remaining plurality of ladder segments. The ladder also comprises at least one fixation element attached to or forming part of at least one of the ladder segments. The fixation element comprises a first spacer element, the first spacer element extending between the anchor element and the ladder in the extended use configuration.

Abstract: Systems and methods for platform occupancy detection on an aerial device are described. An aerial platform may be provided for the aerial device. A worker may perform operations in the aerial platform and connect to an interlock system thereof. The worker may have an associated transmitter configured to transmit a signal. A first receiver and a second receiver may be disposed on the aerial platform to receive the signal. Based on the time difference between receiving the signal at the first receiver and receiving the signal at the second receiver, the position of the transmitter may be triangulated. If the transmitter is determined to be within the aerial platform and the worker is not connected to the interlock system, preventive actions may be taken before operation of the aerial platform is permitted.

Abstract: A step ladder carrier has an enclosure and a ladder securing assembly. The ladder securing assembly has a movable stop having an engaged position in which it engages a first step of a step ladder and having a disengaged position in which it does not engage a first step of a step ladder, the movable stop being moved between the engaged and disengaged positions by an externally accessible handle at the rear wall of the carrier.

Abstract: An access deck assembly is provided for an aerial lift vehicle mobile platform. A base member defines an upper surface to support an operator, and has first and second guides to cooperate with the platform. A locking mechanism is supported by the base member and retains the access deck to the platform. A method of connecting an access deck assembly to a mobile platform is provided. The access deck assembly is positioned relative to the platform to be above and spaced apart from the platform floor surface, with the base member of the access deck assembly substantially within a perimeter frame of the platform. An access deck assembly has a guide member connected to a base member and configured to connect the base member to the mobile platform and support the base member directly above and spaced apart from the platform floor surface.

Abstract: An unlocking structure of workbench ladder includes a platform and two ladders hinged to the two ends of the platform; wherein, the ladder includes an unlocking structure relative to the hinged joint of the platform, and the unlocking structure includes an operating button, rotating lock tongue and a first elastic element; the rotating lock tongue is arranged in the column and the upper end is a locking hook which is locked and located in the locking plate at the bottom of the platform; the first elastic element acts between the rotating lock tongue and the column driving and positioning the locking hook toward the locking plate to lock the ladder and the platform; the operating button acts on the rotating lock tongue to overcome the first elastic element and drive the locking hook to move in a direction opposite to the locking plate, unlocking the ladder and the platform.

Abstract: Various embodiments of ladders, ladder legs, ladder feet, foot mechanisms for ladders, and related methods are provided herein. In one embodiment, a foot is pivotal relative to a leg or rail of the ladder between a first position and at least a second position. A biasing force is applied to the foot to maintain the foot in either of the user-selected positions until a force is applied to pivot the foot to another position. In one embodiment, the foot mechanism maintaining the foot at a desired position may include a pair of pins that couple the foot to another component (e.g., a housing member, an insert member or a rail of the ladder). At least one of the two pins may be displaceable relative to the other pin during pivoting of the foot.

Abstract: Treads are provided which allow a stepping surface to be made of a rubber, plastic, or other gripping material while limiting or eliminating recesses or corners that are difficult to clean. Concentric rings of alternating hills and valleys are provided on a top surface of a step. The hills and valleys are wide, have limited slopes, and reduce abrupt directional changes in the surfaces. A user can clean the surface easily with a sponge, towel, mop, or other cleaning tool because the cleaning surface can reach most or all of the tread surface.