Abstract: A dispenser for dispensing a substance, such as a liquid lipstick or other cosmetic, pharmaceutical or cosmeceutical product, has a body with a variable-volume storage chamber for storing the product. A dispensing portion is connected with the body and a one-way valve for dispensing amounts of product therethrough. The dispensing portion defines a compression chamber in fluid communication with the storage chamber for receiving product therefrom, and an outlet aperture coupled in fluid communication with the compression chamber. The one-way valve has a valve seat, and a visco-elastic valve cover seated on the valve seat and defining a normally-closed, axially-extending seam therebetween forming a fluid-tight seal between the valve cover and valve seat. The flexible valve cover is movable relative to the valve seat, and the seam is connectable in fluid communication with the outlet aperture to allow the passage of product through the seam and out of the dispenser.

Abstract: The invention relates to a closure for an in particular cylindrical packaging (1) for foodstuffs, having an insert (3) that comprises a preferably central outlet opening (6) and one part (5) of which is intended to be fastened to the packaging (1), and a cover (4) connected in an articulated manner thereto for sealing the top of the outlet opening (6), which cover is connected to the insert (3) by a tamper-evident closure, wherein the tamper-evident closure has a tamper-evident element (9) connected to the cover (4) or the insert (3) via at least one target break point (27), which element is arranged to the side of an in particular circumferential edge (12, 13) of the closure in the covering situation and is thus arranged offset to the outlet opening (6), wherein the tamper-evident element (9) has at least one stop (39, 38) edge on each of opposite ends, between which the tamper-evident element (9) is held to a protrusion (10) of the cover (4) or the insert (3) after loosening the tamper-evident closure.

Abstract: A prefilter cover for a bidirectional-airflow respirator cartridge, the prefilter cover including front and rear clamshell portions that are flexibly connected by a flexible connecting member.

Abstract: Container for dangerous environments, which comprises a base (1) and one or more side walls (2) joined to the base (1), so as to define an upper opening (3) which can be closed by a cover (4) and is surrounded by a first flange (5) provided with a plurality of first holes (6), while the cover (4) is provided with a second flange (7) provided with a plurality of second holes corresponding to the first holes (6) of the first flange (5), wherein the base (1), the side walls (2) and the first flange (5) are made of a single metal piece and the cover (4) is joined to the container by means of one or more hinges (10) which allow a rotating and translatory movement of the cover (4) with respect to the container, the cover (4) being provided with a perimetric frame (13) suitable for penetrating into the upper opening (3) and for being coupled with the upper portion of the inner surfaces of the side walls (2).

Abstract: A bicycle wheel anchor for securing differently sized bicycle wheels onto a load carrier is disclosed. A bicycle wheel anchor can include a bicycle wheel receiver configured to accept bicycle wheels of different sizes. The anchor can include an elongate wheel securement strap having a tongue portion which is spaced apart from a tail portion located on an opposite side of an intermediate extension portion of the strap. The tail portion of the strap can comprise a catch to be anchored at different locations on the anchor in a plurality of variously located catch-trap. The anchor can include a first catch-trap positioned a distance away from a second catch-trap, such that a different length of the strap is available for extension about the wheel receiver in a first installed configuration than in a second installed configuration.

Abstract: A package for a consumer product includes a container foaming a cavity adapted to hold a consumer product and a film attached to an edge of the container to enclose the cavity. The film has a layer of polymeric material with printed images or text on a side of the film facing the cavity and a layer of lacquer applied to a side of the layer of polymeric material facing away from the container. The lacquer has a viscosity of between about 19 and about 23 seconds on a number 2 zahn cup.

Abstract: A dual compartment pouch for wipes and liquid is formed as a pouch body made of a pouch film. The pouch body has a front wall and a rear wall, side seals which run on at least a portion of a circumferential pouch edge and a parting seal connecting the front wall and the rear wall and separating a first compartment from a second compartment in a fluid-tight manner. A first fitting on the first compartment and a second fitting on the second compartment have a complementary shape to one another. The complementary shapes of the first fitting and the second fitting, after a separation of the compartments along the parting seal, enable fluid communication of the first and the second fittings with one another.

Abstract: A container includes a sleeve, a first end closure, and a second end closure. The first end closure closes off a first end of the sleeve and the second end closes off an opposite second end of the sleeve. The sleeve and end closures cooperate to define an interior region therebetween that receives products therein.

Abstract: An example of droplet discharge device includes a discharge path (12) having an end that constitutes a discharge opening (11), a plunger (30), a liquid chamber (50) into which the plunger (30) is inserted, a plunger driving mechanism that moves the plunger (30) forward and backward, and a plunger position determining mechanism that specifies a position of a tip portion of the plunger (30). The liquid material is discharged in a droplet state by applying inertial force to the liquid material with forward movement of the plunger (30) in a state where the tip portion of the plunger (30) and an inner wall of the liquid chamber (50) are not contacted with each other. A minute droplet is formed by moving the plunger (30) forward to push the liquid material out of the discharge opening (11) in an amount necessary to form a droplet of a desired size.

Abstract: A plant organizing and growing assembly includes a housing that has a bottom wall and a perimeter wall which is attached to and extends upwardly from the bottom wall. The perimeter wall has an inner surface and an outer surface. The perimeter wall bounds an enclosed space and the bottom wall has a generally rectangular shape. A plurality of legs is coupled to and extends downwardly from a bottom surface of the bottom wall. The legs are spaced apart and include four corner legs each positioned adjacent to one of the corners of the bottom wall. Each of the corner legs has a bottom surface having an aperture extending therein. Each of the apertures terminates before extending through the bottom wall such that the apertures are spaced from an upper surface of the bottom wall.

Abstract: The present invention relates to an automobile safety kit and methods of using the same. Specifically, the present invention comprises safety articles contained within a rigid, resilient and easily-openable container having items therein useful for protecting automobile passengers during a flood or other natural disaster event. The kit preferably comprises a length of resilient rope having a carabineer or other connector on an end thereof, a seatbelt cutter, a window hammer for breaking an automobile window, and a pair of magnetic clamps having handles thereon for utilization by a user to remain on or in proximity to the automobile or other metal structure, especially during a flood.

Abstract: A proppant discharge system has a container with an outlet formed at a bottom thereof and a gate slidably affixed at the outlet so as to be movable between a first position covering the outlet to second position opening the outlet, and a support structure having an actuator thereon. The container is removably positioned on the top surface of the support structure. The actuator is engageable with gate so as to move the gate from the first position to the second position. A conveyor underlies the container so as to receive proppant as discharged from the container through the outlet. The container is a ten foot ISO container.

Abstract: The invention relates to a collapsible freight container and related methods thereof.

Abstract: A platform for supporting and moving a bulk seed container or the like including a horizontally disposed worker support platform frame having at least one worker support platform positioned thereon. The platform frame has a supporting structure for supporting a bulk seed container thereon. The platform frame may have a discharge chute thereon.

Abstract: The present invention is directed to a waste packaging system, a method of storing waste and to a film for use in this system and method.

Abstract: The Portotrash garbage disposal unit comprises a hollow ring forming a mouth of the garbage disposal unit. Legs capable of connecting to and supporting the mouth and allowing the unit to stand in an upright standing position are provided. A bag that fits over and is kept in place by the hollow ring is provided and occupies at least some of the space formed in between the legs. Preferably, there are four legs identified as a first leg, a second leg, a third leg, and a fourth leg. The first and the third leg are connected to each other by a first connecting member forming a first leg pair, and the second and fourth legs are connected to each other by a second connecting member, forming a second leg pair. The first leg pair and the second leg pair are pivotally connected to each other through their respective connecting members. Hollow ring comprises a clasp or other fitting mechanism corresponding to each leg to which it connects.

Abstract: In an infrastructure that uses a mobile order fulfillment system, robotic drive units may be dispatched and instructed to bring inventory holders to a workstation where at least one of the inventory holders is packed and prepared for shipment. The robotic drive units are then instructed to move the prepared inventory holder to a transport vehicle such as a truck. Fiducial marks may be removably placed within the transport vehicle to aid navigation of the robotic drive units. At a destination facility, additional robotic drive units may be instructed to move the inventory holders from the truck and place the inventory holders at appropriate storage locations.

Abstract: An assembly for arranging hanging goods in a space-saving manner, in particular for forming a block of hanging goods to be stored in a high bay warehouse, comprises a feeding unit for feeding the hanging goods along a transport direction and an arrangement unit for arranging the hanging goods, wherein the arrangement unit is provided with at least two transport rails arranged adjacent to one another when seen in the transport direction.

Abstract: A component mounting apparatus includes a plurality of transport conveyor units that are arranged in parallel and transports boards, each transport conveyer unit including a pair of transport rails of a fixed rail and a movable rail, a fixed side transport motor that drives a fixed side transport belt provide on the fixed rail, and a movable side transport motor that drives a movable side transport belt provide on the movable rail. The fixed side transport motor is provided on a side surface of the fixed rail that faces the movable rail, and the movable side transport motor is provided on a side surface of the movable rail that faces the fixed rail. The fixed side transport motor and the movable side transport motor are arranged so as not to interfere with each other when the distance between the pair of transport rails is changed.

Abstract: To prevent the production of metal powder in a conveyor device for conveying food (12), and prevent the contact pressure and wearing from increasing at the slide portion between a conveyor belt (15a, 15b, 15c and 15d) and a guide rail (82) in a low temperature environment. A conveyor device for conveying food includes a large number of round bars (60) which forms the conveyor belt (15a, 15b, 15c and 15d), coupling members (62) which are fixed to both ends of each of the round bars (60), a guide rail (82) which slidably supports the conveyor belt (15a, 15b, 15c and 15d), and a slide block (78) fixed to each round bar (60) and configured to slide on the guide rail (82). The coupling members (62) includes rotatable rollers (74), the rollers (74) mesh with a sprocket (48, 50), and the sprocket (48, 50) conveys the conveyor belt (15a, 15b, 15c and 15d) in a conveyance direction. The rollers (74) and the meshing portion of the sprocket (48, 50) include a wear resistant resin member.

Abstract: Closed conveyor belt with a housing (2) that encloses a conveyor belt (11) that can be set in motion by a drive, characterized in that both edges (22) of the conveyor belt (11), that extend in the direction of movement (P) of the conveyor belt, extend through the housing (2) by a protruding section (23) that extends through slots (24) provided to this end in the housing (2).

Abstract: An apparatus and method for processing food products is provided. The product conditioning system includes an inlet assembly, a pressurizeable tunnel and an outlet assembly. The inlet and outlet assembly pressure vessels include a pair of vertically extending parallel screws for transporting food products from one end of the pressure vessel to the other. The pressurizeable tunnel includes a heating stage having microwave sources for irradiating food products so as to pasteurize or sterilize prepackaged food. The pressurizeable tunnel further includes a heat maintenance stage and product cooling stage. Both the heat maintenance stage and product cooling stage include vertically extending pressure vessels. Within each pressure vessel, two pairs of parallel rotating screws are positioned for moving food products through a liquid environment at a desired temperature for continued pasteurization or sterilization in the heat maintenance stage, and product cooling within the cooling stage.

Abstract: A belt band conveyor has an endless conveyor belt band guided over deflection and/or drive friction rollers, for deflecting and/or driving the conveyor belt band. Each roller includes an axially-extending shaft. At least three roller segments are releasably mounted on the shaft, axially apart from one another, so as to rotate about a rotational axis extending axially in the longitudinal direction, Each roller segment has an inside circumference contour and a friction surface on its radial outside circumference engaging on the lower belt with friction fit. The inside circumference contour of each roller segment and the outside circumference contour of the shaft are structured so that each roller segment is connected with the shaft with shape fit to prevent twisting about the rotational axis. When the shaft turns about the rotational axis, in a rotational direction, the roller segments also turn about the rotational axis, in this rotational direction.

Abstract: A mining system that includes a conveyor and controller. The conveyor includes a first sprocket and a second sprocket, a chain, a drive mechanism, and a sensor. The chain is associated with the first sprocket and the second sprocket and includes a plurality of chain components. The drive mechanism is coupled to the first sprocket or the second sprocket and is operable to drive the first sprocket or the second sprocket. The sensor is operable to generate a signal related to a characteristic of the conveyor. The controller is operable to receive the signal from the sensor, determine a number of chain components that have passed a datum point based on the signal, determine the location of at least one of the plurality of chain components based on the number of chain components that have passed the datum point, and update a map of the chain based on the location.

Abstract: A conductor loop and a conveyor belt including the conductor loop. The conductor loop is embedded in an article having a base of a polymer material with elastic properties. The conductor loop includes at least one hybrid yarn having at least a textile first material and a conductive second material closed in an endless manner.

Abstract: A conveying apparatus (10) includes a dynamic axis (20), an idler axis (30), a conveying belt (40), a work-energy conversion wireless monitoring apparatus (50) and at least an on-site wireless controller (60). The on-site wireless controller (60) is used to sense an operation status of the conveying apparatus (10) to generate a sense data (622) and to wirelessly send the sense data (622) to the work-energy conversion wireless monitoring apparatus (50). The work-energy conversion wireless monitoring apparatus (50) includes an electric generator (502), a battery (504), a rotating speed measuring sensor (506), a microprocessor (508) and a transmission antenna (510). The electric generator (502) is coupled to and connected to the idler axis (30). The electric generator (502) is driven with a rotating motion of the idler axis (30) to generate an electricity power. The battery (504) is electrically connected to the electric generator (502).

Abstract: Conveyor slip detection and control. A controller is operable to receive a first signal from a first sensor, determine a first value for a position of a first portion of a torque limiting device based on the first signal, receive a second signal from a second sensor, determine a second value for a position of a second portion of the torque limiting device based on the second signal, determine a difference between the first value for the position of the first portion and the second value for the position of the second portion, determine an amount of slip between the first portion and the second portion based on the difference, and generate a control signal to control an operation of the conveyor based on the amount of slip.

Abstract: Bottle caps are properly oriented and deposited into a bottle capping machine by an apparatus having a rotating disk which carries caps from a cap receptacle through a sorting zone to a discharge zone. In the sorting zone, improperly oriented caps fall from the disk back into the cap receptacle. Only properly oriented caps are moved by the rotating disk to the discharge zone where such caps are discharged by a discharge plate into the bottle capping machine.

Abstract: The invention relates to a plant for the transport of granular material comprising at least one container for granular material to be transported, at least one receiver-meter group, at least one conveyance duct, depressurization-pressurization means arranged to suction/inject a gaseous medium from/into said at least one container, and at least one vacuum duct between a receiver-meter group and said depressurization-pressurization means, thereby creating a flow of said granular material and said gaseous medium in said at least one conveyance duct and a flow of gaseous medium between said at least one receiver-meter group and said depressurization-pressurization means.

Abstract: An indicator system is provided for use with a blown-in dust transfer system. A dust collector collects dust, where it accumulates at an airlock feeder. When the feeder moves, accumulated dust is dispensed into an introduction chamber. A blower moves air through an introduction chamber where the dust particles become entrained in the moving air. The dust and air mixture are moved into a removable storage container where the dust particles fall out of the moving air. Return air that is mostly devoid of dust returns to the introduction chamber. Between the storage container and the introduction chamber is a sensor that detects dust in the return air. If the level of dust reaches a certain amount the sensor detects it and an operator is notified that the storage container is full.

Abstract: The present invention pertains to a system of unloading bulk material that comprises at least a silo for receiving a bulk load discharged from a load transport means; and at least a feeder to feed the load from the silo to a conveyor belt. The system comprises a flow control means that regulates the operating parameters of the feeder to make sure that an estimated calibrated flow rate corresponds to a desired flow rate, where the estimated calibrated flow rate is obtained based on a calibration factor calculated by comparing an estimated flow based on an operating parameter of the feeder with a real flow measured downstream of the silo.

Abstract: A seed container rack system for dispensing a selected variety of seeds from a plurality of seed containers. The seed container rack system generally includes a support frame having a lower frame for supporting at least one lower seed container and an upper frame for supporting at least one upper seed container above the upper edge of the lower seed container. A lower conveyor is positioned within a lower portion of the support frame to receive seed from the lower seed container and the upper seed container. A chute having an upper end and a lower discharge end extends from beneath the upper seed container to a side of the lower seed container to transfer the seed from the upper seed container to the lower conveyor.

Abstract: A device for covering a portion of a dock leveler deck and a gap between the deck and a surrounding dock floor surface lying inward relative to a loading dock door is provided. The device may include a rigid frame and a barrier secured to the rigid frame and configured to cover the portion of the dock leveler deck and the gap inward of the loading dock door when the rigid frame is attached to the loading dock door and the loading dock door is fully lowered.

Abstract: A hopper apparatus (100) provides a conveyance passage (150) equipped with a nitrogen purge system. In operation, the hopper apparatus (100) is installed over an opening of a process vessel (200). Chemical matter may be conveyed through the conveyance passage (150) to land within the process vessel (200). The hopper apparatus may have a flap valve (141) that serves to isolate the interior space of a process vessel (200) from the ambient environment outside the process vessel (200). The hopper apparatus (100) may also inject nitrogen at various rates into the falling stream of chemical matter as it is conveyed into a process vessel (200). The hopper apparatus (100) may also provide a ventilation sleeve (180) providing ventilation and extraction of dust and vapors emitted from the falling stream of chemical matter.

Abstract: A sliding ramp can include at least two platforms. The platforms of the sliding ramp can be slidably connected to provide a storage position and an operational position. The platforms can include male and female members. The male and female members can facilitate the slidable relationship between the two platforms.

Abstract: A sheet stacking apparatus includes a main body, a first storage unit configured to be drawn out of/inserted into the main body and storing a sheet, and a second storage unit configured to be drawn out of/inserted into the main body, provided above the first storage unit, and storing a sheet. The first storage unit includes a guide portion, and the second storage unit includes an abutment portion guided by the guide portion when the second storage unit is drawn out of the main body in a state in which the first storage unit is being precedingly drawn out of the main body.

Abstract: An image forming apparatus includes a housing, a sheet conveyance passage, a main tray, a downstream tray, and an elastic member. The main tray includes a first fastening portion and a first support portion, and is pivotable about an axis of the first support portion to thereby be openable and closeable with respect to the housing. The downstream tray includes a second fastening portion, and a second support portion disposed further inside the housing than the first support portion, the downstream tray overlapping the main tray, and being pivotable about an axis of the second support portion and thereby relatively movable with respect to the main tray. The elastic member is expandable and contractible and fastened on the first fastening portion of the main tray and the second fastening portion of the downstream tray.

Abstract: Methods and systems for determining longitudinal position of an elongated web are described. Sensors are used to detect one or more substantially continuous fiducial marks disposed longitudinally on the web. The sensors generate signals associated with the fiducial marks. A position detector receives the signals and determines a longitudinal position of the web using the sensor signals. The fiducial marks may be periodic fiducial marks, such as sine and/or cosine marks on the web and/or may be piecewise continuous marks. The coarse longitudinal position of the web can be determined based on periodically recurring features of the fiducial marks. The fine longitudinal position can be determined based on continuous portions of the fiducial marks between the periodically recurring features.

Abstract: The winding device has a winding shaft 205 that rewinds roll paper S conveyed from a printer 100, which has a conveyance unit 115 that conveys the roll paper S; a power input unit 206 to which power from the conveyance unit 115 is input; a winder-side power transfer mechanism that transfers power input to the power input unit 206 to the winding shaft 205; and a lever 208 that can move between a first position P1 where the lever 208 bends the conveyance path of the roll paper S from the printer 100 to the winding shaft 205, and a second position P2 where the lever 208 bends the conveyance path a shallower angle than at the first position P1, and to which is applied a force moving the lever 208 toward the first position P1.

Abstract: A decurler method and apparatus that compensates for ink contamination buildup on an indent roll of a decurler in aqueous ink jet products that can lead to paper wrinkle. A gap between the centers of the indent roll and a soft roll is increased to prevent sheet wrinkle by employing an algorithm that determines when the rolls are in contact and are first matching speed with each other and then treats this position as a home position.

Abstract: A sorting machine (1) for sorting flat articles on edge, which machine has sorting outlets (2) for stacking the sorted flat articles, each of which sorting outlets is equipped with a stacking actuator (5) and with at least one slide plate (4) having a front face (40) against which the flanks of the flat articles slide while the flat articles are being stacked, the sorting machine (1) being provided with a noise damper and reducer (8, 12) for damping and reducing noise generated by the flat articles while they are being stacked, at least a portion of the noise damper and reducer (8) being provided on the slide plate (4).

Abstract: A system and method are provided for improving stack integrity for a set of image receiving media substrates at an output of a compiler in an image forming device positioning a plurality of pairs of rotating shelf structures in a vicinity of an exit/ejection port of an image receiving media processing or post-processing unit. The plurality of pairs of rotating shelf structures cycle between a first (support) position and a substantially orthogonal second (drop) position with respect to a rotating axis for the rotating shelf structures. Each of the rotating shelf structures has a uniquely-portioned top surface that includes a substantially-parallel top (supporting) portion and a ramped lead-in portion facing the exit/ejection port from the image receiving media processing or post-processing unit in an effort to reduce any image receiving media substrate “stubbing” against a first of the plurality of pairs of rotating shelf structures in a process direction.

Abstract: An apparatus for storing, rotating and feeding a high pressure hose, including: a first rotatable drum with a helical groove; a second rotatable drum; and at least one actuator for rotating the first and second drums. For rotation of the first and second drums in first and second opposite directions, respectively, a hose and a cable are coilable into the helical groove such that the hose is in compressive engagement with the cable and the first drum. For rotation of the first and second drums in the second and first directions, respectively, the hose is uncoilable from the first drum and displaceable beyond the apparatus and the cable is coilable about the second drum.

Abstract: An elevator swing operation system for use in a building includes a plurality of floors with landings that are grouped into zones. The elevator cars are allocated to service the zones with a default allocation setup or configuration. The allocation of elevator cars to zones can be modified by moving an elevator car from one zone to another in response to a maximum estimated time to arrival being exceeded and a maximum number of elevator cars allowed to change zones not being exceeded. Furthermore, the default configuration or allocation can be restored when the system is in swing operation, an elevator car is parked, and a minimum time for receiving no calls has been exceeded.

Abstract: An energy management system for an elevator installation coupled to a source of alternative energy integrates various operational modes regarding optimization of energy usage. The energy management system selectively executes these modes depending on at least one predetermined parameter of a variety of parameters. The energy management system has a processor and a switch module coupled to the processor to receive a control signal from the processor. Upon processing of at least one of the parameters, the processor selects one of a plurality of operational modes of the elevator installation and generates the control signal as a function of the selected operational mode to cause via the switch module an energy flow from one of the inputs of the switch module to the output of the switch module.

Abstract: A method is provided for removing an escalator truss from an escalator well-way having an upper landing and a lower landing, the escalator truss having a first end and a second end. The method includes placing a first forklift below the first end of the escalator truss under the upper landing, placing a second forklift at a second end of the escalator truss, lifting a lifting frame with the first forklift into contact with the first end of the escalator truss, connecting the first end of the escalator truss to the lifting frame, connecting the second forklift to the second end of the escalator truss with a lifting mechanism, raising both the first end and the second end of the escalator truss with the forklifts and moving both forklifts in a same direction to move the escalator truss away from the escalator well-way. A method of installing an escalator truss and lifting frame are also provided.

Abstract: A blade gripping device for gripping a rotor blade of a wind turbine is provided. The device comprises a first frame which is essentially horizontally aligned in a designated operating position and a second frame which is essentially horizontally aligned in the designated operating position and a blade gripping assembly with a number of blade gripping tools. Thereby, the first frame and the second frame are connected to each other via a swivel or other similar type connection, the connection realized to permit a yawing movement of the second frame relative to the first frame. The first frame comprises a rectangular carrying structure with at least four connectors for connection to a lifting device, which connectors are positioned essentially at the corners of the rectangular structure. Further, the invention concerns a method of operating a blade gripping device for gripping a rotor blade of a wind turbine.

Abstract: A wheel transporting assembly includes a cradle. The cradle comprises a central section, a top section and a bottom section each coupled to and extending away from the central section. The cradle may engage a wheel while the wheel is mounted on a vehicle. The cradle avoids contact with a body of the vehicle while the wheel is removed from the vehicle. A mount is coupled to the cradle. The mount may be engaged to a lift to facilitate the wheel to be transported away from the vehicle. A loop is coupled to the cradle. The loop may have a cord coupled between the loop and the wheel to facilitate the wheel to be retained on the cradle.

Abstract: A transportable machine includes a frame that may be part of a motorized carriage and a machine for transport. The frame has, for example, one or more gaps defining an interface specially designed for engaging the machine. The machine includes elements adapted to fit within or otherwise engage the gaps of the frame. Fasteners join the machine and the frame, thus creating a transportable machine.

Abstract: A vehicle crane includes a carbody, a turntable rotatably mounted on the carbody, a jib mounted on the turntable that can be tilted about a horizontal axis, and a counterweight assembly mounted on the turntable and can be moved relative to the turntable. A coupler mechanically couples the position of the counterweight assembly to the tilt angle of the jib. The coupler is embodied such that it can be decoupled.