Abstract: An arrangement structure of a stacker and a reclaimer, comprises a stacker, a reclaimer, a stacker travelling track, a reclaimer travelling track, a material input conveyor, a material output conveyor, a material storage yard, and a closed material storage shed. The stacker and the material input conveyor are inside the reclaimer, and the reclaimer upwards straddles the stacker and the material input conveyor. The stacker and the material input conveyor penetrate through an internal space of the reclaimer. An arrangement form that a rack of the reclaimer upwards straddles the stacker is adopted so that a problem of interference caused when the stacker is as high as an upper travelling platform of the reclaimer is solved. The upper travelling platform of the reclaimer does not need to be independently arranged.

Abstract: Disclosed herein are reclaimer systems, troughs, and methods for selectively positioning at least a portion of an upper portion of a trough relative to a vertical axis to adjust an operative height of the trough and thereby set an overflow threshold height for the reclaimed material, wherein reclaimed material below the overflow threshold height contributes to a target reclaim rate for the reclaimer system, and wherein the trough is configured to permit overflow of reclaimed material above the overflow threshold height.

Abstract: The present disclosure relates to equipment for handling bulk materials. In a particular form, the present disclosure relates to equipment for use in stockpiling grains in a bulk storage system of the type commonly referred to as a bunker, although its application is not so limited. In one aspect, there is provided a mobile stacker and reclaimer combination comprising a mobile stacker, and a mobile reclaimer which is movable independently to the mobile stacker, wherein in use, the mobile reclaimer simultaneously collects a bulk material and feeds this to the mobile stacker.

Abstract: A stockyard joint reclaiming system includes an outer output conveyor, a scraper reclaimer provided with a scraper mechanism, an inner feeder, and an inner output conveyor arranged below a stockpile. The scraper mechanism includes a chain and a scraper installed on a chain. The chain moves forwards or backwards under the action of a driving device to drive the scraper to push materials to a corresponding discharging port. The scraper mechanism drives the scraper through forward or reverse operation of the chain for pushing the materials to the output conveyor and a reclaiming line can be selected. A reclaiming mode is flexible and more output lines are available. When the material level is lower than a horizontal position, the scraper is driven to move through a reverse operation of the chain to push the materials to an upper part of the inner feeder for realizing reclaiming, thereby reducing unnecessary energy consumption and effectively guaranteeing the reclaiming capability of the scraper reclaimer.

Abstract: A stacker-reclaimer apparatus for handling bulk material at a storage site includes a central tower having a vertical axis, a stacker boom rotatably mounted to the central tower about the vertical axis thereof, a reclaimer boom rotatably mounted to the central tower about the vertical axis thereof independently of the stacker boom, a conveyor mounted on the reclaimer boom, the conveyor including a conveyor screw, a hoist for hoisting the reclaimer boom from a lower position to an upper position, and a control unit for hoisting the reclaimer boom from the lower position to the upper position simultaneously with rotating the reclaimer boom about the vertical axis of the central tower.

Abstract: Methods and systems are provided to improve PGNAA substance analyzers. In one aspect, an analyzer includes: a source of neutrons; an opening to receive a substance; a gamma ray detector; and computational device(s) configured to receive spectral data of detected gamma rays, perform a regression algorithm on the spectral data using spectral responses for known atomic elements to determine coefficients of spectrum, sum effective weight values (corresponding to the coefficients of spectrum) together to form a total effective weight value for the substance being analyzed, divide effective weight values by the total effective weight value for the substance to generate effective weight-percent values corresponding to two or more respective ones of the atomic elements detected in the spectral data, and generate final weight-percent values based on a correlation of previous effective weight-percent values obtained for known samples with elemental or molecular weight-percent values obtained for the known samples.

Abstract: A conveyor system for an open pit mine may include one or more conveyor lines. The conveyor lines are used to transport material from one location in the mine to another location. The material transported may be a waste material, such as overburden material, or coal. The conveyor lines may move from a first end of the pit to a distal second end. When the conveyor lines reach the second end, they may reverse direction and return towards the first end. During this reversal in direction of travel, equipment may be selectively swapped between the conveyor lines. The conveyor lines may include at least one mobile bridge conveyor. Each mobile bridge conveyor may support one or more conveyors that transport the material.

Abstract: A mobile stacking and reclaiming apparatus includes a moveable bridge, a moveable hopper and a moveable tripper. The moveable bridge has a first end, a second end, and at least one intermediate portion between the first and second ends. The moveable hopper is connected to the moveable bridge. The moveable hopper is moveable relative to the moveable bridge along at least a portion of the moveable bridge. The moveable tripper is also connected to the moveable bridge. The moveable tripper being moveable relative to the moveable bridge along at least a portion of the moveable bridge. A system is also disclosed that includes at least one mobile stacking and reclaiming apparatus adjacent to at least one stacking overland conveyor configured to convey material for stacking material and at least one reclaiming overland conveyor configured to convey material for reclaiming material. A method of providing such systems is also disclosed.

Abstract: The invention relates to an apparatus for stacking rolling material, such as wood chips, bark or grain into a pile (10) and reclaiming from the pile (10) to a conveyor (20) located below the storing point, said apparatus comprising a center column (30) that supports a stacker boom (40) and a reclaimer boom (50) that are hinged to be turnable independently of each other in relation to the vertical axis of the center boom (30). A characteristic feature of the apparatus is that at least at one point that is hinged in relation to the center column (30) the supporting is arranged resting on a support wheel (60, 60?, 60?) arranged around the frame of the center column (30).

Abstract: A method for filling a terrain using bulk material, preferably excavating material from an ore mine.

Abstract: The invention relates to an apparatus for stacking rolling material, such as e.g. wood chips, bark or grain into a pile (10) and reclaiming from the pile (10) to a material-discharging conveyor (20) located below the storing point, which apparatus comprises a center column (30) that supports a stacker boom (40) and a reclaimer boom (50), an equalizing hopper (60), at least one conveyor (25) located in the equalizing hopper (60) for transmitting the material being discharged to the discharging conveyor (20). A characteristic feature of the apparatus is that the center column (30) is supported directly through the equalizing hopper (60) onto the bottom of the equalizing hopper's (60) foundation.

Abstract: A mobile stacking and reclaiming apparatus includes a moveable bridge, a moveable hopper and a moveable tripper. The moveable bridge has a first end, a second end, and at least one intermediate portion between the first and second ends. The moveable hopper is connected to the moveable bridge. The moveable hopper is moveable relative to the moveable bridge along at least a portion of the moveable bridge. The moveable tripper is also connected to the moveable bridge. The moveable tripper being moveable relative to the moveable bridge along at least a portion of the moveable bridge. A system is also disclosed that includes at least one mobile stacking and reclaiming apparatus adjacent to at least one stacking overland conveyor configured to convey material for stacking material and at least one reclaiming overland conveyor configured to convey material for reclaiming material. A method of providing such systems is also disclosed.

Abstract: An air cushion conveyor stacker reclaimer device and a method thereof, wherein burial of enclosed air cushion outfeed conveyors eliminates the need for costly, reinforced underground tunnels and walkways, wherein overhead suspension of air cushion infeed conveyors eliminates the need for construction of raised walkways and costly ground support structures, wherein lightweight air cushion conveyor stacker devices eliminate the need for massive counterweights, and wherein the fully exploited method for stacking and reclaiming bulk materials via enclosed tubular components, stacking boom curtains, and/or domed enclosures essentially eliminates adverse environmental impact.

Abstract: In a mail processing system, a support element has a flat floor with elements spaced from each other so that a comb-type or fork-type structure is produced, wherein the elements have front section extending upwards. A first transport device has a number of bands equipped with sectional separators, which are spaced from one another. To transfer piled postal items from the support element to the first transport device the floor is aligned with the transport device, and the floor and the transport device are interlocked, so that at least a part of one of the bands extends between the elements.

Abstract: A material stacking device including: an elevated truss supported at opposite ends by first and second pillars, the first pillar includes a pivot allowing the truss to pivot about the location of the first pillar and the second pillar moving in an arc as the truss turns about the first pillar, and a material conveyor extending at least part way along the truss and discharging material to be deposited to an upper section of a material pile below the truss.

Abstract: The invention relates to an apparatus for stacking rolling material, such as e.g. wood chips, bark or grain into a pile (10) and reclaiming from the pile (10) to a material-discharging conveyor (20) located below the storing point, which apparatus comprises a center column (30) that supports a stacker boom (40) and a reclaimer boom (50), an equalizing hopper (60), at least one conveyor (25) located in the equalizing hopper (60) for transmitting the material being discharged to the discharging conveyor (20). A characteristic feature of the apparatus is that the center column (30) is supported directly through the equalizing hopper (60) onto the bottom of the equalizing hopper's (60) foundation.

Abstract: The invention relates to an apparatus for stacking rolling material, such as wood chips, bark or grain into a pile (10) and reclaiming from the pile (10) to a conveyor (20) located below the storing point, said apparatus comprising a center column (30) that supports a stacker boom (40) and a reclaimer boom (50) that are hinged to be turnable independently of each other in relation to the vertical axis of the center boom (30). A characteristic feature of the apparatus is that at least at one point that is hinged in relation to the center column (30) the supporting is arranged resting on a support wheel (60, 60?, 60?) arranged around the frame of the center column (30).

Abstract: A demolding apparatus for removing molded building products from a mold has a conveyor assembly to advance the mold in a machine direction. A removal mechanism contacts a dislodged portion of the molded building product and applies a dislodging force to the dislodged portion of the molded building product.

Abstract: A conveyor apparatus includes a tail portion connected to a head portion such that the head portion is moveable relative to the tail portion from a first position to a second position located lower than the first position. It should be appreciated that such movement of the head portion can permit the drop height of the conveyor apparatus to be adjusted. At least one frame portion is moveably positioned between the tail portion and the head portion. A stacker is also provided that includes the conveyor apparatus.

Abstract: A material stacking device including: an elevated truss supported at opposite ends by first and second pillars, the first pillar includes a pivot allowing the truss to pivot about the location of the first pillar and the second pillar moving in an arc as the truss turns about the first pillar, and a material conveyor extending at least part way along the truss and discharging material to be deposited to an upper section of a material pile below the truss.

Abstract: A portal-type scraper reclaimer having a support structure 10 and a boom 16. The support structure 10 includes end support members 12. The boom 16 has a main portion 17 and an end portion 15. The end portion 15 is bent relative to the main portion 17. The boom 16 is connected to the end support member 12 at a pivot 26 so that the boom moves relative to the end support member 12. A pair of support sprockets 20 and a pair of drive sprockets 18 are connected to the end support member 12. A boom sprocket 22 is fixed to the boom 16. A scraper chain conveyor 24 extends along the boom 16. The described pairs of sprockets 18, 20, 22 guide the scraper chain conveyor 24.

Abstract: An aggregate material reclaiming device includes a base plate positionable at a substantially coplanar elevation as a support surface, and has an opening therethrough. A frame is coupled to the base plate and suspended from the base plate into a depression below the support surface. A conveyor belt is coupled to the frame below the support surface, and is positioned below the opening in the base plate. The conveyor belt receives and removes aggregate material from the opening to a remote location from the reclaiming device. At least one sliding plate is disposed on an upper surface of the base plate and is slidable from a distal end of the base plate to a position adjacent the opening. A lifting device is operably coupled to the at least one sliding plate and is operable to lift the sliding plate into an elevated position with respect to the base plate.

Abstract: Mobile conveyor modules are used for transporting aggregate over a long distance, or for transferring the aggregate to other modules, and for stacking the aggregate either linearly or radially. These modules may be used in various combinations by themselves or in combination with existing conveyor systems and bridge stackers to stack aggregate on and off multi-lift leach pads and on multi-lift dump sites. Multiple stacking methods may be used with mobile conveyor modules either separately, or at the same time, advance and retreat stacking, the stacking of a berm, or the filling in or a corridor, may be accomplished on a variety of terrain.

Abstract: An arcuate structure for bulk particulate solids which has inner and outer concentric containment walls. The space between the inner and outer walls is subdivided into a plurality of storage subspaces, and covered with a continuous roof. A radial stacker conveyor system receives particulate solids to be stored, and transfers these particulate solids into a selected storage space through access apertures disposed on a circular arc in the roof. To allow the radial stacker to access each roof aperture, it is rotatable about an axis concentric with the inner and outer walls, and the roof apertures are located on an arc concentric with the inner and outer walls. A separate radially located conveyor system is provided beneath the floor of each storage space, by means of which particulate solid stored in any chosen storage subspace can be retrieved through discharge gates located in the floor of each storage space above the conveyor, and transported to a delivery system adjacent to the radial stacker.

Abstract: An uncovered storage facility for stockpiling bulk materials for establishing stockpiles (38) of predetermined geometry. The facility comprises a base (40) having facing retaining walls (42, 44) which are provided by structural berms (46, 48). The berms (46, 48) are for supporting a stacker machine (10) on one side of a stockpile (38) and a reclaimer machine (22) on the other side of the stockpile (38). A high berm (46) supports a stacker machine (10) and a low berm supports a reclaimer (22). The berms (46, 48) provide for more efficient access to a stockpile (38) by a stacker (10) and a reclaimer (22) and a predetermined stockpile geometry which allows increased reclaim efficiency compared to a stockpile of traditional geometry.

Abstract: An uncovered storage facility for stockpiling bulk materials for establishing stockpiles (38) of predetermined geometry. The facility comprises a base (40) having facing retaining walls (42, 44) which are provided by structural berms (46, 48). The berms (46, 48) are for supporting a stacker machine (10) on one side of a stockpile (38) and a reclaimer machine (22) on the other side of the stockpile (38). A high berm (46) supports a stacker machine (10) and a low berm supports a reclaimer (22). The berms (46, 48) provide for more efficient access to a stockpile (38) by a stacker (10) and a reclaimer (22) and a predetermined stockpile geometry which allows increased reclaim efficiency compared to a stockpile of traditional geometry.

Abstract: An apparatus and method for using cotton gin trash or the like to build a compost pile. The apparatus includes a support surface for supporting a compost pile with at least a portion of the support surface being porous; a conveyor for conveying compostable material along a path above the support surface and for dispensing the compostable material onto the support surface; and a mechanism for adding a fluid to the compostable material as the compostable material is received in the inlet of the conveyor.

Abstract: During the building of a mix bed of variable bulk materials, from which slices of the bulk materials are reclaimed from time to time, a computer processes composition analyses and quantity measurements to provide a real time data base of the current aggregate composition of the bulk materials in respective sectors of the mix bed and further processes current composition analyses and current quantity measurements with the real time data base to predict an aggregate composition of the bulk materials in the respective sectors of the mix bed when the respective sectors are reclaimed.

Abstract: The disclosure is directed to a large composting system as well as to a new composting method for the automatic production of compost. A mobile layer rearranging unit includes a conveyor system which is changeable with respect to length can be remote-controlled so that the influx of rotting matter is optimized according to throughput and rotting time and the rot loss is compensated for by repeatedly restoring the complete rot height. The required space requirement is less than before. Any mechanical intervention has a loosening effect, particularly in that the working device comprises upwardly working digging and conveyor wheels. All important parameters for the compost ripening can be monitored via free programming as well as by control by the system maintenance personnel.

Abstract: An exemplary knuckled, hydraulic-actuated stacking conveyor is disclosed for conveying and stacking particle-type materials, such as aggregate, slag, sand, coal, or the like. The conveyor includes inner and outer boom sections vertically supported by an intermediate support structure that does not extend vertically above the hinged or pivotal interconnection of the boom section. A constant length link support is provided for substantially preventing sagging of the preferred two-piece, telescoping hydraulic extension member that raises and lowers the outer boom structure.

Abstract: An arrangement for storing and removing bulk material in a round pile, in which a truss is rotatable about a vertical axis on a substructure. The truss carries a material depositing belt and a bulk material receiver which is pivotable in a vertical direction. A counterweight on the truss balances weight. The substructure is hopper-shaped. The truss is mounted on the substructure by a bearing, and rollers carry the truss which runs on the substructure. The bulk material receiver is in the form of a drag that conveys to a hopper of the substructure. This hopper has a bottom with a conveying medium under which a conveyor belt runs. The bearing has a large diameter annular track that is elevated on posts on the substructure. A rotatable plough located at the bottom of the hopper is the single conveying element on the hopper bottom.

Abstract: A stacker with a connecting conveyor for connecting the stacker with a conveying unit includes a roller rocker which is movably attached to the connecting conveyor and can be placed on the conveying unit or on a traveling vehicle. The roller rocker is placed on the conveying unit or the traveling vehicle in such a way that the connection permits three degrees of freedom.

Abstract: An elongated stockpile of flowable solid material with two halves disposed at the opposite sides of a longitudinal vertical symmetry plane is accumulated by transporting the material feeding portion of an elongated conveyor in the interior and lengthwise of the upper slope of a mansard-shaped shed together with a manifold having two ducts which receive flowable material from the feeding portion and flank the conveyor. The ducts discharge material onto two discrete transverse conveyors which are shiftable so that their discharge ends move nearer to or further away from the symmetry plane. The transverse conveyors are movable with the manifold lengthwise of the upper slope and are mounted on a gauntry which travels along rails. The transverse conveyors discharge streams of flowable material which forms elongated piles, first on the floor and thereupon on the layer of flowable material which is formed by the piles covering the floor at both sides of the symmetry plane.

Abstract: Apparatus for handling bulk material located in a pile at a storage site including a stationary support column that is anchored at the lowermost end thereof. The support column supports a stacker device at the uppermost end thereof, the stacker device being mounted for rotating movement relative to said support column for stacking the material at the storage site in a substantially circular array. A material feed device is mounted over said stacker device and feeds the material thereto during the stacking operation. Mounted for rotary movement relative to said support column is a reclaimer device, the reclaimer device being operable to reclaim the material from the pile for transfer thereof to a discharge area.

Abstract: A feeding device for a vertical tube conveyor supplying the goods towards the lower input end of the conveyor consists of at least one vertical feeding wing rotatable around the lower end of the conveyor, the wing having a vertical elongation from the lower end of the casing of the conveyor to or beyond the lowest end of the conveyor, said wing forming a helix curve running from one point close to the casing, the angle between the tangent of the curve and the direction of rotation along the major part of the curve being such that the tangential force from the wing does not counteract the feeding of the goods into the supplier.

Abstract: Apparatus is provided for depositing solid particulate material in a frustoconical pile within a space of predetermined dimensions comprising, in combination:(a) a screw conveyor for particulate material arranged substantially horizontally;(b) means for feeding particulate material to the screw conveyor;(c) the screw conveyor having a screw mounted at one end for driven rotation and operatively disposed in the screw conveyor for receiving and transporting particulate material therealong;(d) means for depositing particulate material conveyed by the screw conveyor as a pile below the conveyor up to a maximum height corresponding to the level of the screw;(e) the screw being arranged when maximum pile height is reached to carry particulate material at its level along the top of the pile to an outer edge thereof for deposit there, thereby leveling off the top of the pile and maintaining a frustoconical shape in the pile, while ensuring spreading of the pile of particulate material throughout and within a space of

Abstract: A device for the building up and discharge of an annular dump of bulk on a circular storage site. In the center of the circular storage site is provided at least one jib of a dumping device rotatable about a vertical axis, which is fed with the bulk material by means of a feed belt, the discharge end of which is situated above the dumping device in the center of the device. Moreover there is provided at least one removal device which can be swivelled about said vertical axis and machinery situated in the neighborhood of the center by means of which the bulk material removed is fed to a conveyor belt passing through said vertical axis. The removal device and the jib of the dumping device are arranged on a framework which is supported and guided on at least one circular railway concentric with said axis.

Abstract: A pick-up and dump machine is mounted on rails for travel along the length of the intermediate space between two parallel row-like mounds of material piled on a storage field. A conveyor belt extending along the length of such intermediate space can feed material to and from the pick-up and dump machine. The machine is provided with supports engaging the conveyor belt to form a conveyor-belt loop having an infeed run terminating in a dump end followed by an intermediate run, followed by an outfeed run. A horizontally swingable dump boom has a dump conveyor whose inward end is located to receive material from the dump end of the conveyor-belt loop irrespective of the side to which the dump boom is swung. A horizontally swingable pick-up boom has a scoop conveyor which engages the side of a mound to be torn down and dumps onto the outfeed run of the conveyor-belt loop.

Abstract: A conveyor apparatus for conveying loose bulk material such as gravel and other granular materials from an in-feed location to an out-feed location. The apparatus includes a body for rotating about a vertical axis and a plurality of wings fixedly attached to the body and extending radially outward from the vertical axis. A portion of the wings is positioned substantially adjacent the in-feed location. Another portion of the wings is positioned substantially adjacent the out-feed location. Rotation of the body causes the wings to rotate and to convey the loose bulk material from the in-feed location to the out-feed location.

Abstract: In a self-propelled, hydraulic four wheel drivetwo row cane harvester having a four-row piler with a main power source driving variable volume pumps for propulsion and operation; structural and operational improvements of a shortened wheel base, outward extension of right rear center carrier, individual suspension of rear wheels for stability on uneven ground, steerable rear wheels differentially linked by means of bell crank linkages, single articulation pilers having multiple row piling capacity, adjustable cane butt deflectors, and a combination range and speed controls with independent adjustments of ranges ground chain speeds and unit control of the cut cane carrier chains of all speeds within the set range.

Abstract: There is disclosed a backstacker-reclaimer apparatus which includes a frame having a combined stacking and reclaiming boom. A plurality of spaced stacking and reclaiming flights are longitudinally driven about the boom by an endless chain drive. A conveyor is provided which feeds material to be stacked to the lower reach of the boom so that flights traveling along the lower reach may push the material up onto the stack. The material is confined in the lower reach by side skirts which may be raised for a reclaiming operation.

Abstract: A conveyor apparatus for stacking and distributing comminuted material including a fixed first support, a second support supported by the first support and capable of rotation about a vertically extending axis, an arm secured to the second support and concomitantly rotatable with the second support, a rotating mechanism for rotating the second support about the rotational axis, a first pulley secured to one end of the arm, a second pulley secured to the arm between the second support and the end of the arm opposite the first pulley, an endless conveyor belt around the first and second pulleys, support elements along the arm to support the conveyor belt, an actuating mechanism for driving the conveyor belt about the first and second pulleys, a plow supported by the arm having a plow blade above and in proximity to the conveyor belt and a reversible winch for moving the plow along the arm.

Abstract: An apparatus for unloading loose particulate solid material having a discharge pipe and a positive discharge device at the outlet end of the discharge pipe. A pressure sensor is arranged to sense the pressure of the material at the outlet end of the positive discharge device and to produce an output signal in response thereto. A positioning device for varying the position of the outlet of positive discharge device is provided and is driven in response to the output signal of the pressure sensor.

Abstract: Apparatus is provided for controlling the operation of a radial stacker which is adapted to dispense aggregate material in the form of a stack. The radial stacker includes a conveyor for dispensing the aggregate material which moves horizontally through a plurality of dispensing positions to form a level of the stack, and which moves vertically through a plurality of levels to form the stack. One end of the conveyor is supported at a fixed pivot so that it is capable of traversing a horizontal arc of up to 340.degree.. Preposition switches are provided so that the operator may manually set the vertical and horizontal starting point of a cycle. A horizontal drive moves the conveyor horizontally to each position in a level and is controlled by a first timer. A second timer controls the amount of time that the conveyor spends at each of the positions in a level dispensing material.

Abstract: Loose bulk material, such as gravel or the like, is moved by a conveyor or the like from an initial station to a storage area or to a final station where it is utilized in some manner, such as being mixed with other material. When the level of the loose bulk material at the final station is at a maximum level, any loose bulk material coming from the initial station will be conveyed to the storage area where it will be stacked into a storage pile having a predefined shape. When the level of loose bulk material at the final station drops to or below a minimum level, any loose bulk material coming from the initial station will be conveyed directly to the final station. In addition, loose bulk material will be reclaimed from the storage pile in a predefined pattern so as to leave any remainder of the storage pile in a portion of the predefined shape.

Abstract: A backstacking apparatus for stacking and reclaiming bulk particulate material comprising a particulate handling and movable positioning structure. The particulate handling structure includes a boom comprising a first and second boom member having a rake and rake drive operatively mounted thereon. The movable positioning structure includes a base supported on a pair of substantially parallel rails by rollers disposed on opposite sides thereof to control the horizontal movement of the particulate handling structure relative to the supporting surface and boom hoist coupled between the base and the boom to control the vertical movement of the particulate handling structure relative to the supporting surface.

Abstract: Apparatus for progressively removing bulk material from a dump or stockpile having a generally trapezoidal cross-section includes a gantry having a bridging girder extending between a pair of upright end supports. At least one of the supports is movable along a track extending alongside or around the base of the dump or pile. The gantry supports scraper means for scraping material from the top of the pile, and the scraper means together with the girder can be jointly raised or lowered between the upright end supports. Each upright end support includes guide means which laterally retain the girder perpendicular to its longitudinal axis while permitting free vertical movement of the girder.

Abstract: A handling plant for dumping and discharging bulk material into or from a pile, comprises a loading bridge which is adapted to span or be moved over the pile, and which includes an upper beam having a first trackway and a lower beam having a second trackway which extends longitudinally of the bridge and which are adapted to span the storage space or pile. The dumping gear includes a first trolley which is movable along the first trackway and has a conveyor system for receiving the bulk material and for transferring it to each side of the bridge and for dumping it downwardly into a discharge tube. A removing gear which comprises a second trolley which is movable along the second trackway has a vertically extending conveyor with pickup elements, such as, buckets or similar means, to pick up the bulk material vertically and to transfer it to a bridge conveyor which extends longitudinally along the trackway.

Abstract: A reclaiming and stacking system for conveying bulk material has an elongated yard conveyor for moving the bulk material in the longitudinal direction of the yard conveyor; a rail-mounted undercarriage straddling transversely the yard conveyor; first and second booms supported, at their respective inner ends, on the undercarriage.

Abstract: An improved bulk extracting apparatus comprises a pivoted chain scraper conveyor which in the horizontal position acts to remove material from the transverse face of a dump. Various clearing means are provided to loosen material from the face of the dump which is then carried by gravity to feed the scraper conveyor. Alternatively, the scraper conveyor may be pivoted upwardly to clear the dump so that the apparatus may be easily moved either to a different dump or to a different position on the same dump. The scraper conveyor may also be partially lowered to act to remove material from a lateral side of the dump. Finally, stacking means may be additionally provided for adding material onto the dump such as for mixing purposes.