Abstract: An apparatus for the cooling of dust or finely granular bulk material, having a vertical cylindrical cooling jacket, the externally cooled cylindrical surface of which is fed with the material to be cooled from the inside by means of an annular conveyor worm which conducts the material upward and presses it by centrifugal force against the heat exchange surface. In order to be able to materials which are subject to explosion safely with the apparatus, the conveyor worm is arranged on the cylindrical surface of a cylindrical hollow body which is closed at its ends, fills the greatest part of the inside of the cooling jacket, and is driven by a motor.

Abstract: The invention relates to an apparatus for classifying powdered bulk materials, particularly ground clinker, limestone or cement raw material, by air sifting. The material to be classified is fed to the cover plate of a cylindrical rotor and charged into a sifting space having the shape of a cylindrical ring which extends between the rotor and a stationary vane ring which is spaced from and surrounds the rotor. While the coarse material descends in the sifting space, the fine material is conveyed into the inside of the rotor and fed to a subsequent separating device for the separating of fine material and sifting air. In order to simplify the construction and stocking, both the rotor and the housing surrounding it are assembled in building-block fashion from a plurality of identical sections, at least one tangential air inlet connection being associated with each housing section. Each housing section can have associated with it at least one cyclone of its own with its own fan.

Abstract: A device for pivoting a rigid axle driven by a universal shaft to the frame of an automotive vehicle by means of linkage elements one end of each of which has a frame-side support on an imaginary transverse axis which is common to all supports and perpendicular to the longitudinal axis of the vehicle and in connection with which the transverse axis intersects the universal shaft perpendicularly at the midway point between the universal joints of the transmission shaft and the rigid axle. The rigid axle is connected by spring elements to the supported part of the vehicle. Four links are provided, two of which, one individual link 1 and 2, on each side of the vehicle are pivoted in the region close to the wheel at their other end to the axle housing 11 of the rigid axle.

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: A parallel drive for escalators or moving sidewalks is located within the region of reversal and inside the rotating step or pallet belt, the drive including with electric motor, gearing, step or pallet drive apparatus and handrail drive apparatus. The apparati are driven by the drive shafts of a drive unit comprising electric motor and planetary gearing arranged with their axes parallel to the axes of driven shafts of the step or pallet drive and the handrail drive.

Abstract: A belt-type bucket elevator in which each bucket is connected to the belt by two movable fastenings arranged one behind the other in conveying direction. Each bucket is divided into front and rear bucket portions along a dividing plane extending between the fastening joints perpendicularly or approximately perpendicularly to the plane of the belt. The two bucket portions are connected to each other by connecting joints mounted coaxially on the side walls of the two bucket portions.

Abstract: A mobile crusher installation having a supporting framework which receives at least one crusher and can be lifted and relocated, corresponding to the advance or the removal of material, by a transport mechanism, preferably walking legs or extendable track-laying or wheel carriages, and having at least one loading device associated with at least one crusher, which loading device has a receiving hopper for the loose material brought up by freely movable loading machines such as wheel loading machines or excavators, and a conveyor which feeds the loose material to a transfer hopper of the crusher, possibly with the interpositioning of a screening system. In order to increase the availability of the mobile crusher installation while at the same time retaining the optimum loading capacity of the loading machines, the loading device is mounted on the supporting framework swingable around a vertical axis.

Abstract: An arrangement for operating a diesel-hydraulic drive on a construction machine in limit-load control with a microprocessor controller in which the installed hydraulic power is greater than the rated output of the diesel engine. Upon thermal and/or diesel-engine overload the hydraulic power which can be taken off is reducible; in the case of non-output loading, after a selectably predetermined time the diesel engine can be switched to idling speed of rotation and hydraulic displacement pumps can be operated with minimum delivery oil quantity; and the adjustable hydraulic displacement pumps can be adjusted in accordance with selectably predeterminable output curves.

Abstract: The shovel for an excavator has teeth arranged at a distance apart from one another on its digging edge. The areas of the edge of the shovel between the teeth are equipped with caps that are relatively resistant to wear and are put on in such a manner that they can be replaced, and have a short hook-like projection which engages under the edge of the shovel and a long leg which fits over the edge of the shovel. Secured to the upper surface of the shovel between the teeth of the shovel are retaining pieces which can fit together with the legs of the caps when the caps are put onto the edge of the shovel and which cooperate with them in an interengaging manner to prevent the legs of the caps from being lifted off from the upper surface of the shovel. Detachable securing members hold the legs of the caps and the retaining pieces together in the direction in which they can be fit together.

Abstract: The invention concerns a rebound crusher having at least one rotor provided with hammers which is mounted rotatably in a crusher housing and cooperates with at least one rebound mechanism which is arranged swingable against spring force within the crusher housing and the distance of which from the hammers of the rotor is adjustable. In order, in a space-saving development, to permit remote adjustment of the nip between hammers and rebound mechanism, the rebound mechanism is pivotally connected to the piston rod of a damping piston which rests against the crusher housing and the front end position of which is infinitely variable via an adjustment piston of a setting cylinder.

Abstract: A device for the fastening of hammers in axially extending cutouts of rebound-mill rotors having a form-locked attachment between each hammer and one side of the corresponding cutout and a force-locked attachment on the other side by means of at least one wedge-shaped clamping ledge which can be acted on in clamping direction by a plurality of pressure elements each of which has a clamping piston acted on by a pressure medium and which are connected to each other by a common pressure conduit which can be closed by a valve. The clamping pistons are arranged in the clamping ledge and are connected by the pressure conduit which debouches in at least one end surface of the clamping ledge and is filled with a flowable, plastic, compressible pressure medium which, in order to obtain excess pressure, can be acted on by a setting piston which is developed on a closure screw which can be screwed into the mouth of the pressure conduit.

Abstract: The invention concerns an apparatus for charging at least one top-loading crusher (1) with material which is fed batchwise by a plurality of transport vehicles (2) and is introduced into the crusher (1) by a bucket (5) which is loaded in each case by at least one transport vehicle (2) in a receiving position (A) adapted to the plane of movement of the transport vehicle (2) and can be raised into a transfer position (B) in which the bucket (5) is tipped in order to empty it into the crusher (1), the crushed material being withdrawn from the crusher (1) by means of a conveyance device (3).

Abstract: A travelling hopper belt car has a feed chute and a throw-off conveyor belt that can pivot in a vertical plane around a horizontal axis in the area of the feed chute. The side walls of the feed chute are designed in two parts with the upper side section in each case foldable down around a horizontal axis at least to the height of the axis.

Abstract: The grading vehicle has a grading blade which is guided displaceably on the frame of the vehicle transverse to the longitudinal direction of the vehicle. In order to obtain automatic readjustment of the guidance of the blade upon the occurrence of wear and play in the guidance, the blade is displaceable, by means of two guide ledges which extend horizontally on the blade and are spaced vertically from each other, between upper and lower slide pieces, the lower slide pieces being movable vertically and being pushed by spring force against the lower guide ledge of the blade.

Abstract: A bucket wheel cutting device with two cutting wheels for a floating dredge with suction tube conveyance, has its suction tube arranged to end in two suction chambers separated by a central partition, one of the cutting wheels being provided at each of the two sides thereof. The suction chambers can be closed alternately, relative to the suction tube, by means of an adjustable flap.

Abstract: A multi-function directional handle with control elements mounted for turning in both directions is arranged as a single structural unit, in which unit an axially supported control spoke with hand-grippable, individually movable control levers at its ends is provided adjustably fixed in a position within the region of grip in front of the driver's seat of a construction machine. The control levers each define an opening, wherein finger-displaceable dump lever is mounted in each such opening, the axes of swing of the control and dump levers extending, approximately parallel, to the pivot axes of the controlled tool parts, and the direction of turn of the human control movements agreeing with that of the movements controlled.

Abstract: Roller-path system for the transportation of persons and goods, having an endless tread-plate band reversed around a horizontal axis as well as either a freely supported or a roller supported traction chain and self-supporting tread plates, each plate having two pull and two drag support-rod parts arranged close to the slate corners, respectively, opposite each other, where these plates can either directly support themselves, freely supporting rollers and the pull support-rod parts in addition to the traction chain, or can indirectly support themselves, having the pull support-rod parts mounted in traction chains with intermediate rollers and fork-shaped tread-plate resting elements which are attached by drag support-rod parts. The support-rod parts are provided as replaceably arranged system-adaptable pull and drag bolts.

Abstract: Person-conveying device of quiet operating design having a step-belt or pallet belt which is guided in guide rails by transport chains with step-chain or pallet-chain rollers as well as chain-guide rollers, the points of contact of the step-chain or pallet-chain rollers with the travel surface being spaced from the lateral guide surface of the guide rail.

Abstract: Method and apparatus for the remote-controlled connecting or separating of two coupling parts each of which is provided with mechanical form-lock elements and with control-line connectors, one of which parts is provided on the working tool and the other on the dipper stick or the like of a hydraulic excavator, which parts can be connected in force-locked manner by a hydraulic-mechanical locking device, each connecting or separating process comprising two successive individual processes.

Abstract: Tread plates having two grousers for chain-driven vehicles, in which the grouser development in the region of the bolted connection to the carrier chain has radii of curvature and the distance within a linearly developed region between two grousers is approximately equal to the distance between the outer tread grousers of the region of linear chain travel.