Abstract: The present disclosure relates to a lifting device, in particular a mobile crane or a cable-operated excavator, that comprises a superstructure, a main boom that starts from the superstructure, a luffing boom that starts from the end of the main boom remote from the superstructure, a winch arrangement, and a tilting moment detection unit for determining the tilting moment acting on the lifting device by the position of the main boom and the luffing boom. The disclosure is characterized by an apparatus for assisting or for fully automatic carrying out an erecting and/or placing down procedure of a boom system comprising the main boom and the luffing boom that is configured to carry out the steps for erecting and/or placing down the boom system in dependence on the tilting moment detected by the tilting moment detection unit.

Abstract: A deployable bridge carried on or by a vehicle, the bridge being movable from a stowed position to a deployed position, in which a bridge launch mechanism is provided and has only a single actuator.

Abstract: Lifting devices for residential, public and industrial buildings and structures, and more specifically, lifting and carrying systems for maintaining building facades, having rail or mast-type guides, which are arranged on the external wall of the building and equipped with teeth, and a lifting device with a drive including a motor with a gearbox, and a toothed wheel mounted on the drive shaft of the gearbox to engage with the teeth of the guides so that, when the toothed wheel rotates, the lifting device moves along the guides. The shapes of the guides duplicate that of the building, and they are attached to the building by brackets passing through the building facade and secured to load-bearing structures of the building. The lifting device has a platform, each edge of which is hinged to a frame connecting two carriages each having a system of guiding thrust rollers supported on the guides.

Abstract: An assembly for converting motion comprises a first arm rotatable about a first fixed pivot; a second arm rotatable about a second fixed pivot, the second fixed pivot spaced apart from the first fixed pivot; a third arm pivotably connected to the second arm; a fourth arm pivotably connected at a first position thereon to the first arm and pivotably connected at a second position thereon spaced apart from the first position thereon to the third arm; a connecting arm extending between the first arm and the second arm, the connecting arm pivotably connected to the first arm and pivotably connected to the second arm; and a support arm pivotably connected to the fourth arm.

Abstract: An assembly for converting motion, the assembly comprising a first arm rotatable about a first fixed pivot; a second arm rotatable about a second fixed pivot, the second fixed pivot spaced apart from the first fixed pivot; a third arm pivotably connected to the second arm; a first connecting arm extending between the first arm and the third arm, the first connecting arm pivotably connected to the first arm spaced and pivotably connected to the third arm; and a second connecting arm extending between the first arm and the second arm, the second connecting arm pivotably connected to the first arm and pivotably connected to the second arm. The assembly finds use in supporting and moving components of a building. In one embodiment, the assembly finds use in deploying a solar panel array.

Abstract: A power support system to an electric work machine includes: a cable holding unit configured to hold a cable that transmits power; a cable support pole configured to support the cable held by the cable holding unit at a position higher than a height of a vehicle that travels on a track that intersects at a position where the cable is disposed; and a travel device connected to the cable holding unit and the cable support pole and configured to perform a traveling operation so as to be able to move the cable holding unit and the cable support pole.

Abstract: A mobile oilfield storage tank includes a wall and a stair system securely coupled to the wall. The stair system a platform suitable for use as a walkway and a platform extension pivotally engaged with the platform. The platform extension pivots from a folded position to an extended position and creates a continuous walkway between the platform and a platform of an adjacent mobile oilfield storage tank.

Abstract: An order picker for preparing orders that includes a motor-driven mobile chassis, a platform, an elevator for elevating the platform relative to the chassis, a load support tray for supporting loads, and a safety guardrail around the periphery of the platform. The tray is secured to a movable portion of the guardrail that moves in translation along a longitudinal axis of the order picker between a first position, in which the movable portion extends to a first greater distance from a front edge of a deck of the platform, and a second position, at a second lesser distance from the front edge and wherein the tray is movable between a first position extending horizontally above the deck when the moving portion is in the first position thereof and a second position, in which the tray is folded into a substantially vertical position when the moving portion is in the second position thereof.

Abstract: A mobile platform has a separate and independent linear actuator pivotally connected near each opposite end of the platform where there is a contact limit switch that when triggered by contact with the side of a flatbed, stops movement of the actuator, and thus stops movement of the platform, toward the side of the flatbed. Because each of the two actuators is pivotally connected to its respective end of the platform and moves independently of the other, each end of the platform can stop moving toward the flatbed before or after, depending on how the flatbed is misaligned, the other end of the platform stops moving toward the flatbed. In this way the platform self-aligns to the alignment of the flatbed and avoids the need to reposition a flatbed that is not precisely aligned parallel to the central axis of the loading bay.

Abstract: A mobile storage tank includes a wall, a platform secured to the wall, and a structure that provides ascending access to the platform. The structure is configured to transition between a retracted position and an extended position.

Abstract: Mobile scaffolding units include a vehicle for movement across ground surface, a stationary platform rigidly fixed to the vehicle at a predetermined immovable height above the ground surface, and a gantry platform operatively connected to the stationary platform for movements between a retracted position where the gantry platform is nested adjacent to the stationary platform, and an extended position wherein the gantry platform extends laterally outwardly from one or another lateral side of the stationary platform to provide an operator on the gantry platform an extended horizontal reach laterally of the vehicle. The mobile scaffolding units allow an operator to work at elevated heights and with lateral reach in one area of a work zone (e.g., to trim roadside vegetation) and then move to another area of the work zone without requiring an operator to dismount from the gantry platform.

Abstract: An aerial work apparatus comprising a mobile chassis having a longitudinal centerline, a lift mechanism such as a scissors lift having a lower end connected to the chassis and an upper end which supports a work platform. The work platform has a longitudinal centerline which is laterally spaced from and parallel to the longitudinal centerline of the chassis such that the platform is laterally offset relative to the chassis and lift mechanism for substantially stabilizing the apparatus when handling heavy loads positioned at one side of the platform.

Abstract: A mobile oilfield storage tank includes a front wall and a removable stair system coupled thereto. The stair system includes a platform suitable for use as a walkway and a platform extension operably associated therewith. The platform extension creates a continuous walkway between the platform and a platform of an adjacent mobile oilfield storage tank.

Abstract: A ladder safety device, systems and methods of arresting falls from ladders are provided. The ladder safety device includes a safety guide that extends along the length of an extension ladder. The length of the guide along the length of the ladder extends and contracts in unison with the extension and retraction of the extension ladder, and a tension is maintained on the guide to maintain a load during use of the ladder for climbing.

Abstract: A lifting and positioning apparatus (10) including a base support (14), an elevator mechanism (12) having an upper and a lower end; an actuator (21) for operating the elevator mechanism between a collapsed and a raised operating position; and a positioning component (20) mounted on the upper end of the elevator mechanism providing for horizontal linear motion backwards and forwards in a first direction (X), horizontal linear motion backwards and forwards in a second direction (Y), and horizontal rotation (Z).

Abstract: Fall protection for personnel servicing an elevated work area from a man lift. A bridge is pivotally mounted to a working edge of the man lift. The bridge pivots between a stored position and a substantially horizontal operative position. The bridge has a pivotally mounted edge, a remote edge opposite to the pivotally mounted edge and opposed sides. An expandable enclosure is anchored to the man lift. The enclosure is movable between a collapsed position and an expanded position. In the collapsed position, the enclosure is collapsed parallel to and provides fall protection along the working edge of the man lift. In the expanded position, the enclosure provides fall protection for the opposed sides of the bridge in the operative position and provides fall protection in the work area by enclosing a portion of the work area beyond the remote edge of the bridge.

Abstract: Disclosed herein are a universal platform and an assembly method of an aircraft using the same. The universal platform includes a plurality of scissor lifts arranged around an aircraft, wherein each of the plural scissor lifts includes a base frame, a support frame located above the base frame, a support table fixedly coupled to an upper portion of the support frame, a plurality of link members axially assembled to be mutually pivoted between the support frame and the base frame, a plurality of hydraulic cylinders coupled to the respective link members and the base frame so as to lift the support frame in upward and downward directions, and a slide member slidably coupled to the support table, and the slide member slides from the support table toward the aircraft so as to allow a worker to work according to height, and there is provided the assembly method of the aircraft using the universal platform, thereby contributing to improvement in productivity and in health of workers.

Abstract: A stair system for a mobile storage tank includes a platform subsystem attached to a wall of the mobile storage tank, a staircase subsystem coupled to the platform subsystem, and a rail subsystem attached to the staircase subsystem. The platform subsystem includes a retractable platform extension, and the staircase and rail subsystem are configured to be extended for use and retracted for transit and non-use modes of operation.

Abstract: An apparatus for providing access to vehicles and containers on a pair of railways or thoroughfares. The apparatus is comprised of a raised walkway between the pair of thoroughfares having a tracking platform movable thereon. Pivotally attached to and carried by the tracking platform is a turret. Carried on the turret and hinged thereto is a bridge that is rotatable in a vertical plane. At the end of the bridge is a cage pivotally attached to the bridge so that the cage remains horizontal when the bridge is rotated vertically on the turret. The bridge and cage are dimensioned so that, when the turret is rotated such that the bridge is directed between and parallel to the thoroughfares and the bridge and cage are raised, the apparatus is entirely out of the clearance envelopes of the thoroughfares.

Abstract: A support platform (100) for workers dealing with maintenance and construction of a means of transport (NT). The platform (100) comprises: a motorised carriage (1); a horizontal walkway (PDN) supported by the motorised carriage (1); and devices for lifting/lowering the walkway (PDN). The platform (100) is characterised in that the walkway (PDN) comprises a plurality of short planes (9A-9G) parallel to one another that in withdrawn position are piled one on top of the other, whereas in extended position are configured as steps, one after the other. The total surface of the extended short planes (9A-9G) substantially constitutes the walkable surface of the walkway (PDN).

Abstract: In an excavator equipped with an offset boom, an offset command value generating device of a rotation control device offsets a second boom arranged on a distal end side in a rotation direction relative to a first boom arranged on a proximal end side when an acceleration start judging device judges that a rotation operation is started, and offsets the second boom in a reverse rotation direction when a deceleration start judging device judges that a rotation deceleration operation is started. Accordingly, when a rotation acceleration is performed using a reaction force generated in the offset, clearances between members of a work machine can be contracted in advance in the rotation direction, while when the rotation deceleration operation is performed, these clearances can be contracted in advance in the rotation reverse direction, thereby reducing an impact in the acceleration and deceleration.

Abstract: A stair system for a mobile storage tank includes a platform subsystem attached to a wall of the mobile storage tank, a staircase subsystem coupled to the platform subsystem, and a rail subsystem attached to the staircase subsystem. The platform subsystem includes a retractable platform extension, and the staircase and rail subsystem are configured to be extended for use and retracted for transit and non-use modes of operation.

Abstract: A motorized scaffold for self-displacement on land is comprised of a support base mounted on a pair of traction belts. Jacks are provided to immobilize and level the support base at a desired location. A platform assembly is secured over the support base on extendable supports. Braces are secured between the support base and the platform assembly and are extendable with the movement of the platform assembly over the base whereby to maintain the platform assembly substantially stable during its displacement and at a stationary desired working elevation with respect to the support base. A displaceable worker support platform is secured to the platform assembly for supporting workers thereon.

Abstract: An under bridge access vehicle includes a tower having a ladder section and a platform section, and a vehicular chassis including a turntable mounted on the vehicular chassis for rotation thereabout and a tiltable frame mounted on the turntable in pivotal disposition relative thereto. A cross-linking member, including a pair of elongate arms pivotally joined intermediate respective lengths thereof, extends between and connects together the tiltable frame and tower. Specifically, a first of the arms includes an end mounted at a fixed location on the tiltable frame and another end slidably mounted on the ladder section, and a second of the arms including an end slidably mounted on the tiltable frame and another end slidably mounted on the ladder section, with each said arm extending between and being pivotally connected to the respective ends thereof. A first cylinder interconnects the tiltable frame and cross-linking member whereby the tower is movable between a retracted position and an extended position.

Abstract: A pruning vehicle having characteristics specifically utilizable in an orchard having rows of trees opposite each other. The vehicle is equipped with two platforms side by side which can be adjustably located vertically and horizontally in a plane perpendicular to the direction of the vehicle's motion. Each platform is controllable by an operator standing upon the platform through foot pedals incorporated thereon. Platforms are elevated above the vehicle by lifting structures designed to keep the platforms level to the ground at all times. The platforms are connected to a frame of the vehicle at a low slung central portion of the frame for added stability. Wheels of the vehicle are of a thin disc shape. Each wheel can slice through soft surfaces such as mud to attain a firm foundation for the pruning vehicle. Fins and teeth on the wheels provide added traction. Mud deflectors on the wheels prohibit mud from climbing up too high onto or bogging down the pruning vehicle.

Abstract: A stabilizing system includes at least one outrigger assembly. Each outrigger assembly has a pivotable first leg operably connected to a second leg. At least one locking mechanism is operatively mounted to the pivotable first leg and the second leg. At least one sensing mechanism is connected to the first leg for detecting when the first and second legs are in a stabilized position.

Abstract: In a boom lift vehicle comprising a vehicle equipped with a travel apparatus and capable of travel, a boom that is attached to said vehicle and is at least vertically tiltable and horizontally rotatable, and a work platform attached to the distal end of said boom; a travel and rotation control device for controlling the travel of said vehicle and/or the rotation of said boom.

Abstract: Each of a plurality of cargo holds of a bulk carrier vessel has a self-contained staging system lowered into it, from the platform track of which workers operate semi-automatic blasting machines that are mounted onto the platform. The set-up for each vessel also includes, for each hold, a ventilation unit provided on a hatch plug, and a transporter for the staging system. Groups of staging systems are served by on-deck air compressors. Staging systems actually engaging in blasting are served by recycling shot blast units which recycle and supply steel shot. Following blast cleaning, the cleaned surfaces are painted from the platforms.