Abstract: A teaching system includes a CAD/CAM facility that features a CAD-generated crane boom design and a CAM-generated crane boom model based on the crane boom design. A simulator runs a simulation of the crane design using a finite element analysis (FEA) to evaluate the stress-strain performance of the crane design as a function of variable input parameters. The crane boom model is tested under various load and operating conditions to measure its behavioral response in terms of stress-strain behavior. A sensor array monitors the stress-strain behavior of the crane model during testing. The testing performance of the CAM-generated crane model is will allow a comparison with the FEA-based simulation results of the CAD/CAM generated crane design.

Abstract: An offshore wind turbine installation vessel includes a crane provided with a computerized crane control system. The computerized crane control system is linked to the slew drive, the luffing drive, and the hoisting winch of the crane, and is programmed to perform a foundation pile installation routine providing a coordinated pattern of slew motion of the superstructure and of luffing motion of the boom structure, as well as operation of the hoisting winch so that the load connector of the crane moves from a foundation pile pick up position thereof, where the load connector is connected to the top end of a horizontally oriented foundation pile stored on a storage deck, to a foundation pile overhoarding position thereof, wherein the foundation pile is in vertical suspended from the load connector, outside of the hull.

Abstract: A crane may comprise a mast that includes a base end and a top end located opposite the base end, at least one support beam fixedly coupled to the mast adjacent the top end of the mast, a first runway beam fixedly coupled to the at least one support beam, and a second runway beam spaced from the first runway beam. In some embodiments, the first runway beam defines a first end and a second end, and the mast is located closer to the first end than the second end. The crane may also comprise a bridge movably coupled to the first runway beam and the second runway beam, a trolley movably coupled to the bridge, and a hoist coupled to the trolley. In some embodiments, the crane only comprises one mast.

Abstract: A system for determining a lifting capacity of a pipelayer is provided. The system includes a load sensor configured to generate a signal indicative of a load suspended from a lifting hook, an angle sensor configured to generate a signal indicative of an angular position of a chassis relative to ground surface, a boom position sensor configured to generate a signal indicative of a position of a boom relative to an undercarriage, and a counterweight position sensor configured to generate a signal indicative of a position of a counterweight relative to the undercarriage. The system further includes a controller configured to receive the signal from each of the load sensor, the angle sensor, the boom position sensor, and the counterweight position sensor. The controller is also configured to determine the lifting capacity of the pipelayer based, at least in part, on the received signal.

Abstract: Provided is a crane (1) including: a boom (7); a wire rope (8); a winch (9); and a hook (10). The crane further includes: a spooling operation instrument (24) for enabling commanding an operation state of the winch (9); and switches (switch (41) or switch (42)) for enabling commanding a switch of a control mode with regard to the operation of the spooling operation instrument (24). When the boom (7) is in a flat travel orientation with the hook (10) loaded on a prescribed site (hook platform (12)), the switches ((41), (42)) being in an on state and the spooling operation instrument (24) being operated toward one side thereof cause the boom (7) to be raised to a work orientation while the wire rope (8) is unwound such that the hook (10) is not lifted.

Abstract: A portable derrick system for use in hoisting and lowering loads at a plurality of job sites, comprising, in combination: a boom subassembly, a boom head subassembly, a mast support subassembly, a mast head subassembly, a load-carrying line, a winch capable of cooperating with said line, power means for driving the winch, means for pivoting the boom assembly, means for controlling said pivoting means, the foregoing elements of the invention capable of being transported by humans to elevated positions such as, without limitation, rooftops and terraces, and wherein the aforementioned are capable of repeated assembly and disassembly at a plurality of job sites and serving to facilitate the elimination of the need for a street-level crane.

Abstract: This defining method comprises the steps of: —simulating a crane comprising: i) a boom made up of elements and ii) a lifting member that is able to move along the boom, —selecting several elements to be tested, maximum stresses, and several ranges along the boom, and —carrying out the following analysis steps of: •choosing a theoretical load, •calculating stresses brought about by the theoretical load in each element to be tested, •comparing these stresses with maximum stresses, •increasing or decreasing the theoretical load depending on whether stresses are less than or greater than the maximum stresses, •repeating the calculating step and the comparison step and the step of increasing or decreasing until the maximum theoretical load is found, and •recording i) the range and ii) the maximum theoretical load.

Abstract: The invention relates to a method for crane configuration and crane assembly on the basis of an online portal, which holds at least one database with a plurality of standard crane configurations or is connected to the same, with an interface for the user access to the online portal, wherein a crane user virtually composes their individual crane configuration from a plurality of standard configurations and the individual crane configuration is stored on the online portal, wherein at least one further database of the online portal, or an externally connected database, holds assembly information about the stored individual crane configuration, the online portal filters the assembly information relevant in relation to the stored crane configuration and provides it for retrieval by an assembly team.

Abstract: The present disclosure provides a lifting device comprising: a telescopic boom, comprising a basic section, at least one primary telescopic section and at least one secondary telescopic section; a telescopic control mechanism, comprising a primary telescopic drive mechanism that controls synchronous telescoping of the at least one primary telescopic section and a secondary telescopic drive mechanism that controls synchronous telescoping of the at least one secondary telescopic section; a torque limiter, comprising a first length sensor and a second length sensor, wherein a first sensor body and a telescopic end of a first length measuring cable of the first length sensor are respectively connected to tails of adjacent two section in the basic section and the at least one primary telescopic section; and a second sensor body and a telescopic end of a second length measuring cable of the second length sensor are respectively connected to tails of adjacent two section in the primary telescopic section adjacent to

Abstract: A dual boom monitoring system includes a first sensor that monitors a position of a first boom and a second sensor that monitors a position of a second boom. A third sensor monitors a hydraulic fluid pressure of a first boom hydraulic cylinder configured to pivotally raise and lower the first boom with respect to a base. A fourth sensor monitors a hydraulic fluid pressure of an second boom hydraulic cylinder configured to pivotally raise and lower the second boom with respect to the first boom. A controller is communicatively coupled with the sensors and configured to perform the steps of a dual boom monitoring method. The method is used to determine positions and loads on the first boom and the second boom based on data received from the sensors. The method reduces cones of uncertainty for various boom positions to improve accuracy and reliability of load monitoring.

Abstract: A boom extension monitoring system is provided that uses a combination of sensors to determine an absolute location and a relative location of the boom. As the boom extends or retracts, the monitoring system can determine the absolute location of the boom as the sum of the absolute at relative distances. These distances can be obtained through a combination of a grid, low-resolution sensors, high-resolution sensors, counters, processors, and other components according to various embodiments described herein. A process to obtain the total boom extension of multiple telescoping beams by monitoring the extension of a single beam element is also described.

Abstract: A crane for lifting and transporting loads includes a base frame, capable of transferring the loads onto a support surface. A sliding element is slidably constrained to the base frame. An arm capable of moving the loads is hinged to the sliding element. A connection element has a first end hinged to the sliding element, and a second end constrained to the base frame in a mobile manner. Each of a pair of rod elements is hinged to the base frame and to the connection element to form an articulated quadrilateral. A first linear actuator is hinged to the base frame and to the connection element and capable of causing sliding movement of the sliding element relative to the base frame. A second linear actuator is hinged to the sliding element and to the arm capable of causing mutual rotation movement between the arm and the sliding element.

Abstract: A telehandler includes a fixed or articulated frame having a front frame segment and a rear frame segment separated by a connecting point. A cantilever support extends from a fixing point on the front frame segment aft beyond the connecting point to a boom support adjacent a distal end. A boom is pivotably secured at a boom pivot to the boom support.

Abstract: A system and method for visually monitoring an outrigger includes a camera assembly configured to monitor an outrigger and a control system operably and communicably connected to the camera assembly. The control system executes instructions to determine a presence, length, and/or position of the outrigger based by an image captured by the camera assembly. The outrigger may include a target to be detected by the camera assembly for monitoring of the outrigger. The target may be the outrigger itself, detected by the control system using edge detection, or a marker disposed on the outrigger. The system may be implemented with a crane having a carrier unit and a superstructure. The system may include a plurality of camera assemblies and a plurality of outriggers.

Abstract: A method and equipment for detecting with smart glasses used by the operator an target intended by the operator; detecting a driving command given by the operator; and responsively to the detection of the driving command steering the loading member or the load towards said target.

Abstract: A cargo strap monitoring system for real-time detection and reporting of cargo strap failure is provided. The cargo strap monitoring system may be a detector in the form of a cylinder that fits a winch slot. The cylinder provides a housing for circuitry operably linked to a pressure sensor. During normal operation a cargo strap is wrapped around and deployed from the spindle. The pressure sensor detects unsafe tension in the cargo strap. The circuitry includes a transceiver and a processor. Upon detection of an unsafe tension condition the transceiver transmits a warning to a remote monitor which may be located in a driver's truck cab. The remote monitor can be a mobile terminal such as a smart phone. The spindle with a slot and circuitry including the pressure sensor can be sold as a kit suitable for retrofitting to cargo strap winches.

Abstract: A lifting vehicle has a lifting device movably mounted on a mast. Raising and lowering of the lifting device is controlled by a lift cylinder. A load monitor including a strain gauge is mounted on a bridge that is secured at each end to locations that are either on the chassis or on the mast. An indicator in communication with the load monitor can signal an output to an operator of the vehicle. As the strain gauge is secured to a load-stressed part of the vehicle, the load monitor is able to measure the stress being imposed on the vehicle. However, as the locations to which the ends of the bridge are secured are static with respect to one another, the readings are not distorted by torsional and shear forces. This enables the weight of a load and also the stability of the vehicle as a whole to be judged.

Abstract: An industrial machine that includes a dipper, a crowd actuation device, a hoist actuation device, a swing actuation device, one or more sensors, and a controller. The one or more sensors generate one or more signals related to a load within the dipper. The one or more signals are received by the controller. The controller determines, based on the one or more signals, whether the industrial machine is operating in an over-loaded condition by comparing a suspended load to a suspended load threshold value. If the suspended load is greater or equal to the suspended load threshold value, the controller takes an action to control the industrial machine. The action taken by the controller can include increasing, decreasing, or otherwise modifying a speed parameter or speed limit, increasing, decreasing, or otherwise modifying a force parameter, etc.

Abstract: A workpiece reverse support device has a pair of workpiece pinching members for abutting on their respective opposing side portions of the workpiece held by the robot hand so as to pinch the workpiece and a pinching state switching unit for switching the pair of workpiece pinching members between a pinching state of pinching the workpiece and a releasing state of releasing the workpiece. In a workpiece reverse support device for supporting a face/back reverse of a workpiece in a robot hand, flexibility of its installation state, namely installation location, installation posture, or the like can be enhanced.

Abstract: The invention relates to a [crane], particularly crawler crane or mobile crane, with at least one monitoring and simulation means, by means of which a state of the crane can be monitored and/or simulated, wherein the monitoring and simulation means comprise at least one input means and at least one output means, and wherein, by means of the monitoring and simulation means, the change in state, particularly the bearing load curve of the crane, and particularly also the movement of the crane and/or of the boom of the crane, can be represented at any time, and/or a possible state and/or a possible change in state of the crane, particularly the bearing load curve of the crane, can be simulated and/or represented.

Abstract: A system, method and apparatus for bridge interface communication. A node device can be connected to one or more bridge units using a universal sensor interface. A controller in a node device can communicate with a controller in a bridge unit device using a bi-directional data line. In one embodiment, the bridge unit can account for variable amounts of delay in gathering sensor data using availability signaling.

Abstract: A machine includes a chassis and an object detection sensor alignment monitoring system. The monitoring system includes a first sensor module coupled to an object detection sensor. The first sensor module measures values of object detection sensor pitch, roll, and yaw. The monitoring system also includes a second sensor module coupled to the chassis. The second sensor module measures values of chassis pitch, roll, and yaw. The monitoring system further includes a control unit. The control unit compares the measured values of the object detection sensor and chassis pitch, roll, and yaw. The control unit determines whether the measured values are within a predefined tolerance. Further, the control unit generates an alert if the measured values of the object detection sensor and chassis pitch, roll, and yaw are beyond the predefined tolerance.

Abstract: A system for automated dynamic compaction includes a compaction crane having a boom and compaction weight, at least one positional sensor, at least one boom deflection sensor, a rotational encoder, and a compaction control system. The compaction control system may be programmed to identify a first drop location having a first target parameter, determine whether the compaction crane is positioned over the first drop location, determine an initial elevation of the compaction weight, lift the compaction weight to a drop height, detect that the compaction weight has been released, re-hoist the compaction weight to the drop height, measure the payout length of a winch cable after each drop, determine a current elevation of the compaction weight after each drop, and determine whether the first target parameter has been satisfied.

Abstract: An improved material handling system (15, 115) comprising a material lifting device (16), the material lifting device having a sensor (23) for sensing an operational parameter associated with the material lifting device, a load attachment device (18) configured and arranged to attach a load to the material lifting device, the load attachment device having a data tag (20) containing data regarding one or more parameters associated with the load attachment device, a reader (21) configured and arranged to read the data tag, a processing unit (22) communicating with the reader and the sensor, the processing unit configured and arranged to receive data from the reader and the sensor, and a material handling control device (19) configured and arranged to control operation of the material handling device.

Abstract: A lateral stability system for a telescopic handler (1), whose telescopic boom (11) is fitted with equipment (12) suitable for lateral translation of a load (10), comprising a processing unit which includes at least a first enabling module, configured to enable or inhibit movements of said boom (11), according to one or more safety parameters. The system comprises first sensing means for determining the position of the load (10) relative to a center plane (M) of said equipment (12), connected to the processing unit, wherein a first safety parameter is a function of a value of an imbalance signal produced by the first sensing means.

Abstract: A work state monitoring device for a work vehicle is provided, such that an operator can perform the work without receiving a warning. The work state monitoring device acquires a current work state of a crane using work posture detectors. A calculator calculates at least a predetermined work state corresponding to a warning load factor based on the current work state acquired by the work posture detectors. A monitor informs an operator of the predetermined work state calculated by the calculator.

Abstract: A system includes a remotely-operated ground vehicle having first and second lift members, a first lift mechanism coupled to the first lift member, and a second lift mechanism coupled to the second lift member, where the first and second lift mechanisms are positioned at different angles with respect to a ground surface. The first and second lift members may be positioned at opposite sides of a front end of the vehicle and may be controlled by a single motor. The lift mechanisms may have a body portion including first and second prongs separated by an opening, with a plurality of magnets embedded within the body portion near the intersection of the first and second prongs. A communication relay may be secured to each lift mechanism via the opening and a magnetic coupling between the magnets embedded within the body portion and magnets embedded within the communication relay.

Abstract: A work platform for a personnel lift includes a floor structure, a safety rail coupled with the floor structure and defining a personnel work area, and a control panel area. A protection envelope surrounds the control panel area and enhances protection for an operator from an obstruction or structure that may constitute a crushing hazard. In one arrangement, the protection envelope includes protection bars on either side of the control panel area extending above the safety rail relative to the floor structure. In another arrangement, the protection envelope includes a platform switch that is configured to trip upon an application of a predetermined force.

Abstract: The present invention discloses a device and a method for detecting the tension on a guide rope of a hanging scaffold in a construction shaft. The guide rope is released by a winch, rounds over a hoisting sheave, is connected to the hanging scaffold, and then is tensioned up; the hoisting sheave is disposed at a position above the winch, and the device comprises a slide device, two tension ropes, and a pull rope, wherein, the slide device is fitted around the guide rope, the two tension ropes are fixed to the two sides of the slide device respectively and arranged parallel to the guide rope, the pull rope is fixed to the lower part of the slide device and arranged perpendicular to the guide rope. On the basis of the basic principles of mechanics, the force applied on the guide rope can be calculated indirectly according to the proportional relation between the forces applied on the tension rope and guide rope and the lengths of the ropes.

Abstract: Embodiments provide a circuit, a method, and a computer program configured to detect mechanical stress and a circuit, a method, and a computer program configured to monitor safety of a system. The detection circuit is configured to detect mechanical stress of a semiconductor circuit. The detection circuit comprises a stress monitor module configured to monitor mechanical stress of the semiconductor circuit and to provide monitor information related to a mechanical stress level of the semiconductor circuit. The detection circuit further comprises an activation signal generator configured to generate an activation signal comprising activation information related to the mechanical stress level of the semiconductor circuit if the monitor information indicates that a mechanical stress level criterion is fulfilled by the semiconductor circuit.

Abstract: An outrigger pad monitoring system for determining crane stability includes a plurality of outriggers having sensors for measuring a load placed on the outriggers. A crane control system utilizes the measured load on the outriggers to determine the stability of the crane. A crane control system utilizes the measured load on the outriggers with positional information for the crane boom to determine if the crane boom is in a side-load condition. The outrigger pad monitoring system may be used during the setup of the crane and to verify the proper operation of a rated capacity limiter.

Abstract: A system provides stress and/or accumulated damage monitoring on earth moving equipment, such as excavators, trucks, electric rope shovels and drills, hydraulic shovels, wheel loaders and graders. The system includes: strain gauges (51-60), each gauging strain at one of multiple strain gauge locations; a data acquisition unit (41) to acquire real-time strain data from the strain gauges (51-60); a processor and memory (42) to process the acquired real-time strain data to calculate one or more measures of actual accumulated damage and/or actual instantaneous stress; and at least one output device (37) to provide information comparing the measures with corresponding reference values.

Abstract: The invention relates to a method in the check weighing of a weighing system. In the method, a hoist (15) equipped with a weighing system (14) is used to lift a load (27), which is weighed, and the value measured by the weighing system (14) is recorded. In the method, the weighing system (14) is adjusted as required, on the basis of the recorded values. A real load (28), which is weighed when not moving, is used as the load (27). The same real load (28) is also weighed during a normal movement while moving. A reference value is defined from these two weighings of the same real load (28), on the basis of which the weighing system (14) is adjusted if necessary and/or the precision probably achieved by the weighing system (14) is estimated. The invention also relates to a software product and an arrangement in the check weighing of a weighing system, and materials handling equipment.

Abstract: At an end portion of a telescopic boom of a crane, a stereo camera which measures a distance from the end portion to an object is provided, and an image-processing controller which obtains three-dimensional position information of the object based on the crane as reference from measurement data to the object by the stereo camera is provided, and three-dimensional position information of an object in a surrounding area centering on the crane by the moving the telescopic boom is obtained.

Abstract: The invention relates to a building machine, in particular a road-building machine, having running gear and a chassis which is fitted with a working unit which has one or more implements. The building machine has a stored-program control device for controlling the implements of the working unit and a device for displaying operational variables or operational states in the form of characters or images. In addition to the stored-program control device, the building machine has a centralized data processing device which is embodied in such a way that operational variables or operational states can be displayed as characters or images with the device for displaying operational variables or operational states.

Abstract: A load monitoring system for a lifting system that includes a lifting device is provided. The load monitoring system includes a lifting link assembly and a controller. The lifting link assembly includes a link body, a strain sensor, and a radio frequency identification (RFID) device. The link body is structured and arranged to couple the lifting device to a load. The strain sensor is fixed to the link body and is configured to generate a signal corresponding to the load. The RFID device is fixed to the link body and is configured to receive the signal. Further, the controller is in communication with the RFID device, and is configured to receive the signal from the RFID device and initiate a safe lifting protocol in response to the signal attaining a pre-determined threshold value.

Abstract: A lifting apparatus for a lift system is disclosed. The apparatus includes a) a motor adapted for providing a lifting force, b) at least one connector operatively connected to the motor, the connector adapted for connecting a load-bearing component to the motor, c) an information receiver for receiving a load limit information about the load-bearing component, d) a motor controller electrically coupled to the motor and the information receiver, wherein the motor controller is adapted to limit the lifting force of the motor based on the load limit information received by the information receiver.

Abstract: Disclosed is an apparatus, system, and method for sensing the current supplied to a motorized hoist for raising a maintenance platform and providing an estimate of the operating status of the motor, for example, as stopped, starting, stalled or operating as expected. In various embodiments, measures of voltage and current may be used to determine the operating condition of the hoist and to estimate the magnitude of the applied load. Unintended modes of operation can then be determined so that the conditions can be indicated to the operator and protective measures taken.

Abstract: A boom (1) is used for receiving loads on the end thereof. The boom (1) has a metal boom hollow profile (2) extending along a boom longitudinal axis (3), and also a reinforcing layer (7) made of a fiber-plastic composite, connected to the boom hollow profile (2) at least in sections. At least one sensor element (12) is arranged in the region of the reinforcing layer (7). The sensor element (12) is used to detect strains in the boom (1).

Abstract: A method according to the invention of controlling a rotation speed of a motor of a speed-controllable hoist drive comprises receiving a lift speed instruction; forming a final speed instruction by using initial information containing the lift speed instruction; and using the final speed instruction as a speed instruction for the rotation speed of the motor of the speed-controllable hoist drive. The method further comprises monitoring a position derivative of an actual value of a cable force. The initial information for forming the final speed instruction comprises the position derivative of the actual value of the cable force.

Abstract: A jib part (10) for a crane, in particular a mobile crane, a includes an inner shaping shell (15), tensile elements (11) within hollow profiles (12) and a sheathing, made from a layer of transverse fibers (13) covered by a protective or slide layer (14). The tensile elements (11) are biased and fitted with sensors and/or actuators.

Abstract: The present invention relates to a mobile machine, in particular a truck crane, with an undercarriage on which extendable sliding beams located opposite each other relative to its middle axis are arranged, which include extendable supporting feet, and with an uppercarriage to which a boom, preferably a telescopic boom, is luffably articulated. According to the invention, at least one sliding beam on one side of the middle axis is designed such that the extendable supporting foot can be extended further away from the middle axis than the other supporting feet.

Abstract: The invention relates to a method for the load torque limitation of a work vehicle comprising a jib, in particular a mobile crane comprising a multi-part, preferably hydraulically movable jib or telescoping jib, wherein on the basis of captured operating parameters of the work vehicle such as pressure, angle, length, configuration and the like from at least one multi-dimensional characteristic map a load value is determined and compared to a load limit value which is determined depending upon the captured operating parameters, wherein a warning is issued and/or the operation of the work vehicle is automatically interrupted when the actual load value exceeds the load limit value, wherein depending upon the captured operating parameters a value for a potential total energy of the work vehicle is calculated, taking into account the configuration of the work vehicle, and the unknown load value is determined on the basis of said value.

Abstract: The present invention is a crane operating system and method which monitors the crane moment load in order to keep the crane within the safe operating envelope. In determining the current crane moment load the system considers boom raising cylinder pressure, boom angle, chassis incline, as well as hydraulic pressure.

Abstract: A rotary part of a crane is associated with an electric slewing mechanism including at least one geared electric motor unit of which the electric motor is powered in such a way as to produce a slewing torque having a certain maximum value. When the crane is in use and for conditions such as windspeed greater than a given value, jib length greater than a given value and moment of the lifted load greater than a given value, the maximum value of a slewing torque produced by the electric motor is increased. The crane thus becomes easier to drive, particularly in the phases during which the jib is adopting a “windward trend”.

Abstract: The invention relates to a method of determining changes in loads on lifting gear, whereby a change in load is determined within load curve data at a transition point of the load curve gradient, and whereby the load curve is broken down into discrete-time observation intervals at the transition points. It further relates to a method of reconstructing load situations on lifting gear, for which such a method of determining changes in load is used.

Abstract: This invention relates to a lattice mast crane with a lattice mast boom to be luffed up in a vertical luffing plane, which comprises a pivot piece, a plurality of lattice pieces releasably connectable with each other, and a head piece. In accordance with the invention, the lattice mast boom includes a first and a second region, wherein in the first region the lattice mast boom includes at least two first strands of interconnected first lattice pieces extending in parallel in longitudinal direction of the boom, which are connected with the pivot piece via a lower cross-beam and with the head piece via an upper cross-beam, and wherein in the second region the lattice mast boom only consists of a second strand of interconnected second lattice pieces.

Abstract: A control system for a machine which includes a load handling apparatus for moving a load relative to a body of the machine. The machine includes a pivot about which a tipping moment is produced by the load. The load handling apparatus includes an actuator capable of moving the load to a position at which the tipping moment is at a threshold value. The control system is responsive to a tipping moment sensor to control operation of the actuator to progressively reduce the speed of movement of the load as the threshold value of the tipping moment is approached.

Abstract: The lifting gear comprises two motors (1, 1?) that are connected to a transmission (6) via respective drive shafts (2, 2?), couplings (3, 3?), with fitted brake disks (4, 4?) or brake drums, brakes (14, 14?) and transmission input shafts (5, 5?). The transmission (6) drives cable drums (9, 9?) via transmission output shafts (7, 7?) and couplings (8, 8?). The cable drums have a cable pull (12, 12?) and fitted brake disks (10, 10?) or brake drums and safety brakes (11, 11?). The inventive lifting gear is characterized by comprising, in the drive shafts (2, 2?), devices (13, 13?) that completely or partially disconnect the motors (1, 1?) from the transmission (6) when an excess load exceeds the predetermined load. They are monitored on both sides of the devices (13, 13?) and the brakes (14, 14?) and/or safety brakes (11, 11?) are activated in the event of disconnection.

Abstract: A control and regulation arrangement for protection of a conveyor or other hoisting or crane device that assures a safe reaction to overloading. A brake apparatus is provided that acts on the conveyor under control of an overload sensor. If the load approaches a predetermined threshold, a signal is emitted from the overload sensor and transmitted to a speed sensor that limits the conveyor speed. Simultaneously the control transmits a signal to the brake apparatus to actuate and stop the conveyor. Upon receipt of a subsequent signal that a load relief state is to be established, the control brakes the conveyor in accord with the speed signal such that the object in transport moves toward a safe position at a constant speed. A conveyor with multiple hoisting devices may include duplicate control and regulation arrangements for each hoisting device.