Abstract: A method for providing wireless telecommunications. The method includes providing a modular remote radio unit (RRU) capable of wirelessly transmitting data, placing the modular RRU on a boom truck with a boom arm, transporting the remote radio unit to a deployment location, setting the modular RRU on a structure at the deployment location by lifting the modular RRU off the boom truck with the boom arm, electrically coupling a power input of the modular RRU to a power source to power the modular RRU, and transmitting and receiving wireless data with the modular RRU unit after the power input is coupled to the power source.

Abstract: A method and a system for recovering and utilizing crane operating energy and a crane includes converting by a first hydraulic power means hydraulic energy generated by a hydraulic actuator into mechanical energy of a transmission shaft; driving, by the transmission shaft, a second hydraulic power means to rotate so as to convert the mechanical energy of the transmission shaft into mechanical energy of the second hydraulic power means; filling, by the second hydraulic power means, pressurized oil into an accumulator so as to convert the mechanical energy of the second hydraulic power means into hydraulic energy for storage.

Abstract: A crane comprising a boom formed as an elongate tubular structure and a line assembly to extend a line from a least one end of the boom. The line assembly may include a first bank of sheaves, a second bank of sheaves, a line reeved around the first and second banks of sheaves, and an extension mechanism controlling the distance between the first and second banks of sheaves. The second bank of sheaves and at least a portion of the extension mechanism being enclosed within boom.

Abstract: An applicator boom apparatus comprises an applicator boom extending laterally from a vehicle, and pivotally attached to the vehicle such that the boom can pivot up and down with respect to the vehicle. A kit provides a gauge member adapted to ride along a surface of the ground and support an outer portion of the boom such that the boom moves up and down with the gauge member as the gauge member rides along the ground, and also provides an active hydraulic source powering the shoulder hydraulic cylinder of the apparatus such that the shoulder hydraulic cylinder exerts an upward force on the boom such that a downward force exerted on the gauge member by the boom is reduced.

Abstract: A system for lifting and moving an object includes a vertical post (2), having a transversal lifting arm (38) rotatably connected thereto for rotation about a vertical axis thereof. The vertical post includes a weight (5) acting as a piston connected to a carriage (50) slidably mounted on the lifting arm, such that down and up displacements of the weight by gravity or pressurized fluid respectively lower and raise the object accordingly.

Abstract: A movement system for moving a person. In at least certain aspects, the system has a power apparatus and primary line apparatus connected to the power apparatus. The power apparatus selectively moves or plays out and takes in the primary line apparatus. One or a plurality of secondary lines are connected to the primary line apparatus In those embodiments with a plurality of secondary lines, the secondary lines diverge from each other and extend to a corresponding movement station in a structure. The or each secondary line has a distal end extending into its corresponding movement station for connection to a personal support apparatus around a person, and the or each secondary line is movable by the power apparatus to move a person to whose personal support apparatus the or each secondary line is attached.

Abstract: A system for lifting and moving an object comprising a vertical post, having a lifting arm pivotably mounted thereon. Said vertical post comprising a piston connected to a carriage slidably mounted on said lifting arm, such that operation of said piston can lower and raise said carriage.

Abstract: A self-centering boom for self-propelled agricultural sprayers having a double-acting hydraulic cylinder and a magnetically actuated electrical position sensor and control for sensing and moving the boom to a centered position. The electro-hydraulic control circuit senses boom position when the boom is at or near a centered position with respect to the sprayer and automatically centers the boom when the sprayer drive train is out of a neutral condition. The hydraulic system includes a pair of pressure relief valves to allow the boom to deflect due to inertial forces when turning or when contact is made with an obstruction, with the control system returning the boom to a centered position after turning or when the boom is clear of the obstruction. A flow restricting orifice cooperates with the pressure relief valves to automatically adjust the pressure at the inlet of the relief valve to retard rapid boom movement, while not interfering with slow boom movement.

Abstract: A hoist is constructed for powered drive by an impact tool. The hoist includes tension means for applying a force in tension to a load. Gear means are operatively associated with the tension means for producing a tension force in the tension means. The gear means include a gear element which provides a positive hold of the produced tension force when the gear means are not being driven. Impact fitting means are connected to the gear element for enabling the gear means to be power driven by an impact tool.

Abstract: A boom swing control device for controlling boom swing relative to a frame. Booms may be supported relative to a frame for application of material over a wide area. During an application process, the booms are subjected to various external forces which cause the booms to move or swing relative to the frame. The boom swing control device of the present invention includes first and second members operably coupled to the boom and the frame supporting the boom to control and dampen movement of the boom relative to the frame. The second member is moveably supported relative to the first member to move between an extended or excited position and a retracted normal operation position.

Abstract: A snag load protection system for a train including a guide frame, a sheave housing slidably received within the guide frame, and a hydraulic cylinder connected to the guide frame and to the sheave housing. The hydraulic cylinder serves to exert a compressive force against the sheave housing so as to resist relative movement between the guide frame and the sheave housing when forces exerted by the sheave housing are within a predetermined value. A relief valve is connected to the hydraulic cylinder for releasing hydraulic fluid from the hydraulic cylinder when the force is greater than the predetermined value. Pressure and position limit switches are connected to a motor so as to stop the movement of a hoist rope when forces exceed the predetermined value.

Abstract: A floor-running stacker crane comprising a non-linear floor rail, a non-linear overhead rail, a base supported for movement along the floor rail, a turntable, a rotate bearing supporting the turntable on the base for rotation of the turntable relative to the base about a generally vertical axis, a rotate drive for rotating the turntable relative to the base, a mast having a lower end fixed to the turntable such that the mast rotates with the turntable relative to the base, the mast also having an upper end supported for movement along the overhead rail, a carriage moveable vertically relative to the mast, a hoist assembly for moving the carriage vertically relative to the mast, a load engaging mechanism, a rotate bearing supporting the load engaging mechanism on the carriage for rotation relative to the carriage about a generally horizontal axis, and a tilt drive for rotating the load engaging mechanism relative to the carriage.

Abstract: A high speed cable hoist system for conventional dockside container handling cranes of the type comprising a frame and a movable boom extending laterally therefrom. The high speed cable hoist includes a hoist cable speed enhancing system which comprises a frame having a stationary sheave set positioned at the bottom thereof and a vertically movable sheave head positioned above the stationary sheave set and adapted for vertical movement within the frame. Each of a plurality of hoist cables from the conventional hoist drums extend between and wrap around two or more sheaves in each of the sheave set and sheave head, respectively, and terminate. The sheave head may be selectively actuated by suitable actuating means in order that the speed of extension or retraction of the plurality of cables by the hoist drum may be increased by motivating the sheave head either toward or away, respectively, from the stationary sheave set.

Abstract: Load cells are provided at the fixed end of each cable of a multiple-cable lifting head adapted for use at the free end of a knuckle boom or other aerial crane for lifting and operating "IGLOO" recyclable waste containers and the like. The load cells provided with each selectively controllable cable of the multiple-cable lifting head provide a signal through a J Box to a remote scale indicator at the base of the knuckle boom or crane in order to facilitate weighing the container at the beginning and end of the waste removal process so as to accurately determine the waste weight simultaneously with the removal thereof from the container.

Abstract: A container is suspended from four hoist ropes. One end of each rope is wound on a drum to be driven in either direction to hoist or lower the container. The second end of each rope is connected to a double acting hydraulic cylinder. The cylinders are controlled by a valve system to dampen swaying of the load to reset the ropes and for skewing, trimming and listing the load.

Abstract: A jib derricking gear for a jib crane having a boom and a jib for hoisting work extended from the boom head of the boom comprises a pair of jib derricking cylinder actuators. Load on the jib is distributed to the pair of jib derricking cylinder actuators, so that each jib derricking cylinder actuator may be such as having a cylinder having a comparatively small diameter. The jib derricking cylinder actuators are combined with the jib so that the jib derricking cylinder actuators function as compression members. The thrust of the jib derricking cylinder actuator is doubled by a tackle. The jib derricking cylinder actuators and the associated jib supporting members are disposed so that the jib derricking cylinder actuators and the associated jib supporting members will not interfere with a hoist rope for hoisting work.

Abstract: The invention contemplates a hydraulically operated twin-cable suspension for a clamshell or the like load-handling device. In a preferred embodiment, a charged accumulator is effectively a counterweight and is the source of all hydraulic fluid needed for the full range of actuation of two traction cylinders, one for each of the respective cables. Both cables automatically share the load, without slack, in any elevational situation, and simple hydraulic control circuitry selectively enables (a) an automated closing dig into loadable material and (b) a quick opening for load discharge. A single power integrator is interposed between the accumulator and the two traction cylinders for directionally controlling hydraulic-fluid displacement between the accumulator and the traction cylinders, as needed for all cable displacements.

Abstract: The invention contemplates a hydraulically operated twin-cable suspension for a clamshell or the like load-handling device. In a preferred embodiment, a charged accumulator is effectively a counterweight and is the source of all hydraulic fluid needed for the full range of actuation of two traction cylinders, one for each of the respective cables. Two power integrators are employed: one is interposed between the accumulator and one of the traction cylinders, and the other is interposed between the accumulator and the other traction cylinder; hydraulic control interconnections between the respective integrator circuits enable load sharing by both cables and simplified single-lever control of plural clamshell functions, including (a) an automated closing dig into loadable material and (b) a quick opening for load discharge.