Abstract: A TRV-type turbine casing includes inner and outer annular shrouds that extend one inside the other and about the same axis and are connected together by arms. A tool for disassembling and moving the casing has a lower carriage for moving the tool, and an upper plate to be attached to the turbine casing. The plate is supported by the carriage and includes first members that cooperate with a first annular flange of one of the shrouds to support the casing and axially immobilize the casing relative to the tool. The plate further includes second members that cooperate with a second annular flange of the other shroud in order to prevent and/or guide the rotation of the casing about the axis.

Abstract: A construction beam robot, such as for steel erection, comprises a pair of thrust producing fans located at either end of a beam to be installed. The fans' thrust and direction of thrust is controlled and/or coordinated by a computer with custom control software. By altering the direction and amount of thrust, the orientation of the beam is controlled. Workers on site who possess a controller are able to rotate or fix the orientation of a beam from a distance and do so wirelessly.

Abstract: A multi-cable subsea lifting system including two or more load-cable lifting apparatus (2a, 2b); a load cable (4a, 4b) extending from each load-cable lifting apparatus (2a, 2b) to a subsea attachment point; a torque measuring device (22) associated with each load cable (4a, 4b); one or more subsea anti-cabling devices (20), each anti-cabling device (20) including a motor (24) connected to a respective load cable (4a, 4b); and a controller (30) in communication with each motor (24) and torque measuring device (22); wherein the controller (30) is configured to actuate each motor (24) to impart a rotational force to its respective load cable (4a, 4b) in response to measurements obtained from the torque measuring device (22) with the aim to limit cabling, remove cabling or control heading either automatically or from external control.

Abstract: Controlling the orientation of a load suspended from a bearing wire employs one master winch, one slave winch and a winch control. Each of the winches has a motor and a bi-directional rotational spool with a tagline. The winches are on the ground, the crane or the load. Each tagline is attached to the load for applying a controlled torque to the load about the bearing wire. The control system comprises tagline tension sensors and spool rotation sensors. The control system is connected to each winch motor for simultaneously rotating the winch spools, until preset tagline tensions are sensed during horizontal and/or vertical movement of the load. If necessary, the spools are rotated with rotation speeds for maintaining a desired orientation of the load, based on the determined tagline tensions. After relieving tagline tensions, the taglines are disconnected from the load.

Abstract: A method for controlling a hoisting or lowering movement of a load, which is suspended from a hoisting mechanism of a crane by means of at least two hoisting cables trained round cable sheaves on the load, by monitoring the position of the load and braking and/or stopping the hoisting mechanism upon detection of an undesirable position, wherein the cable sheaves are each connected to the load for pivoting about a horizontal axis, and the position of the load is monitored by detecting a pivoting movement of at least one of the cable sheaves.

Abstract: Various lifting systems are described that use one or more of the following features. A method for setting an adjustable height upper pulley on a tall structure; load transfer from a suspended load to a tall structure; fan-based stabilizer; stabilizer or horizontal load position control mechanism using a closed loop of cable and traction winch for a crane application; crane-based lifting system that uses a closed loop of lifting cable looped around a traction winch; and a stabilizer or horizontal load position control mechanism that does not need a closed loop of cable. Other embodiments are also described and claims. Other embodiments are also described and claimed.

Abstract: The invention relates to a rotator (10) for jib-carried tools (1), for example tree working units, wherein the rotator (10) includes a stator (20) and a rotor (30), wherein the rotator (10) is connected to a tip (2) of the jib or arm (3) and to the tool (1). The rotator (10) has or includes in its surroundings means (70, 71) for determining the relative position of rotation between rotor (30) and stator (20). The means for determining the relative position of rotation comprises a pulse emitter (70) and a number of pulse generating elements (71), such as grooves or teeth. Limitation of the angle through which the rotator (10) can turn and control of the direction of rotation prevents, for instance, hoses and/or cables (7) from twisting or rotating away from their respective connections, while enhancing the extent to which automation can be achieved at the same time.

Abstract: A lifting fixture for attachment to a torque converter or starting motor within an auxiliary compartment of a gas turbine is provided. The lifting fixture generally includes a frame configured to attach to a hoisting support, a pair of lifting lugs attached to the frame and positioned above the frame, and a plurality of lifting hooks attached to the frame and positioned such that each lifting hook has a bend extending below the frame. A removal apparatus for moving a torque converter or starting motor within an auxiliary compartment of a gas turbine is also generally provided.

Abstract: A hoisting frame or head block (1) for a container crane (17), comprises a frame structure (8) provided with two pairs of cable sheaves (5) which pairs are at a distance from each other in the longitudinal direction of the frame structure (8), connecting means (9) for connecting a secondary hoisting frame or spreader (2, 3) to the frame structure (8), a drive mechanism (12) for displacing the cable sheaves (5) of each pair with respect to each other in the transverse direction of the frame structure (8) between a small mutual rest position distance respectively a large mutual rest position distance, as well as rest position stabilisation means for stabilising the rest positions of the sheaves of each pair.

Abstract: A lifting device such as a mobile crane having a main body and a boom, such as a lattice boom, for supporting a pile lead for, e.g., pile driving or continuous flight auger drilling, and a method of using same. A hydraulically operated mechanical spotter arm may be attached between the device body and the pile lead. Electronic position sensors on the spotter arm may be used to measure angular relationships between the pile lead and the spotter arm. Position sensors on a boom box on the boom may also be used. When the pile lead is swung, information from the sensors may be used by an electronic control system to automatically maintain the pile lead in a desirable position, limiting torque induced in the boom. The boom box position sensors may be used to counter-steer the spotter arm to further limit torque. The boom box may also be fitted with rubber springs to permit controlled pile lead deflection while limiting load transmitted to the boom.

Abstract: A self-propelled crane provides a possibility to lift the heavy and large-size loads and includes a mobile unit as a base unit, which carries a pivoting platform, a traverse, a boom, the bottom of which is by the hinge connected to the platform and the upper end of a boom is attached to a luffing arm. The upper end of the boom has the first hoist cable roller and another end of the luffing arm has the second hoist cable roller. The first hoist cable is connected to a crane hook mechanism.

Abstract: The invention proposes an apparatus characterised by its versatility for continuously adjusting the length of a lifting sling (H) designed to carry a load (F), which is provided with a U-shaped clamp (2) having a bearing (6, 7) for a swivel axis (8) constructed at each of its legs (4, 5) projecting from the ends of a central part (3) of the clamp (2), a load-lifting element (13) secured to the clamp (2) to which the load.(F) can be attached, and a clamping element (16) supported on the swivel axis (8), which has two side legs (14, 15) running parallel to one another at a distance, which each have their one free end coupled to the swivel axis (8), an end cross-piece (17) formed at the other end of at least one side leg (14) which covers the distance between the side legs (14, 15), and a centre cross-piece (21) arranged between the end cross-piece (17) and the swivel axis (8).

Abstract: The pipe-laying vehicle 1 includes a lower vehicle body 2, a driver's cab, and a jib 10 which is supported on the lower vehicle body 2, can be raised and lowered about a horizontal axis 11, and can be swivelled about a vertical pivot axis by a live ring. On the outer end of the jib 10, a sheave head 31 is provided with a deflection pulley 26 and a sheave 28, and can be swivelled as a whole relative to the jib 10 about an adjustment axis 32 that extends in the longitudinal direction of the jib 10. A mechanically or hydraulically actuated locking device selectively locks the pivot position of the sheave head 31 relative to the jib 10. As a result of the swivel capability of the jib 10 and of the sheave head 31, the pipe laying work can be performed more simply and quickly.

Abstract: A unit (10) having a boom (12) and rotary device (14). The rotary device includes a first bracket (22), a second bracket (24) movably mounted to the first bracket and a third bracket (54) connected to the second bracket by a driven shaft (34). A motor (40) is mounted on a motor bracket (38) mounted to the second bracket. A drive gear (46) is mounted on the motor and engages a driven gear (48) mounted on the driven shaft. A friction plate (56) is located on the driven shaft adjacent the third bracket. When a load (102) is connected to the third bracket, the weight of the load pulls the third bracket downward into contact with the friction plate. The frictional contact between the third bracket and the friction plate causes the third bracket and the load to rotate when the drive shaft is rotated.

Abstract: A spreader bar includes an elongated bar member having end portions that support a flexible lifting member that is supported below the bar. The flexible lifting member is preferably comprised of a plurality of link sections that are pinned together, load carrying links depending from the flexible member, preferably at pinned connections that join the additional links.

Abstract: A modular, readily assembled crane for mounting on a vehicle trailer hitch drawbar and reconfigurable for stand alone, rollabout operation. A receptacle rotatably supports a vertical column, boom arm, and lifting device, which may be a hydraulic jack or a winch. The receptacle has a lateral projection cooperating with the drawbar and two lateral projections to engage outriggers to steady the device and to support weight. The outriggers may be omitted. The same three projections, when reconfiguring the crane to rollabout operation, cooperate with a readily built up frame riding just above a floor, supported on casters. Rollabout frame length, boom arm angle, boom arm length, and outrigger height are adjustable. A non-lubricated PTFE washer serves as a rotating bearing. Optional parts include a receiving unit mountable to a vehicle in the absence of a trailer hitch, and a similar unit mountable to a wall surface.

Abstract: A hoist that includes a winding drum for a load-lift cable mechanism. The um has two drum sections of slightly different diameter; end portions of the cable are wound in different directions on the drum sections, so that one cable section winds onto a drum section while the other cable section winds off the other drum section. The effect is to provide a very slow net cable motion related to the difference in drum section diameters. The hoist includes a latch mechanism adapted to suspend the load from the boom during certain periods of a load transfer operation.

Abstract: The present disclosure of a board bundle cradle is for use with the free end of a dip stick having a pivoted work carrier at its free end having a hook which has a horizontally rotatable work carrier movable through an arc of the order of 106.degree. horizontally relative to the pivot. The board road board bundle cradle has a pair of spaced apart end frames each of which has a base member adapted to receive and support a bundle of boards to be laid into a board road. A major and a minor board bundle containment member upstands from each end of each base member and extends from the upper portion of each major support member. Spacer means between the spaced apart end frames rigidly secures the frames together. The portion lying between the upwardly forwardly inclined member and the upper free end of the minor board bundle containment member defines the loading mouth of the cradle through which a bundle of boards to be laid are introduced to the base members of each end frame.

Abstract: A power shovel comprises a boom which is supported on an undercarriage and can be lifted and lowered. A hydraulically operated shovel mechanism is mounted at a front end of the boom before pivoting about a horizontal axis. The shoveling mechanism carries a pivotable shovel and at least one cable pulley. A cable hoisting gear engaged with the boom is operable to move the boom. A cable of the cable hoisting gear is trained or reeved on the cable pulley of the shoveling mechanism so that the shoveling mechanism can be moved by the hoisting gear with movement of the boom.

Abstract: A lifting apparatus includes two lifting hoists which are respectively associated with two cables. These cables are lowered in parallel with one another, and are connected to a fixed part of a rotating apparatus. The rotating part of this apparatus moves along longitudinal rails of a secondary frame which is attached to the carrier of the container. The lifting operation may be performed as the container's gravity center reaches the perpendicular axis of the center of a quadilateral defined by four points established by an electronic device which detects the various loads within the lifting cables and is adapted to actuate appropriate hydraulic means to maintain a load differential between the cables below a predetermined value. In this respect, the apparatus balances the containers to be lifted before lifting them.

Abstract: The four hoisting cables of a container loading crane which depend from the free end of the crane boom pass axially through a central opening of a turntable mechanism. The upper turntable portion is mounted on the boom and may tilt about a horizontal axis. The lower turntable portion may be moved relative to the upper portion about a vertical axis. The free ends of the hoisting cables extend between two pairs of engaging elements on the lower turntable portion and corresponding two pairs of engaging elements on a container hoisting frame. The pairs of engagement elements at least on the frame are spaced farther apart in the direction of frame elongation than the frame is wide. One engagement element associated with each tension member is a pulley over which the tension member is trained.