Abstract: A continuous-conveyance bulk-cargo ship unloader in which a boom is provided with an elephant trunk that can swing from one end of the boom. The trunk has a hollow cylindrical shaft which accommodates an upright conveyor. At the bottom of the elephant trunk, is a free-sweeping cargo-intake unit that is provided with a cargo pickup, a lower section of the conveyor, and a conveyor loader for transferring cargo from the pickup to the conveyor section. Squeeze rollers are mounted in horizontal frames and positioned at varied heights along the upright conveyor, and these frames have an uppermost frame attached to the shaft. The remaining ones of the frames are suspended from a frame above at three or more points. A lowermost frame is releasably fastened to the cargo-intake unit and pivots along with the cargo-intake unit about a vertical axis at the bottom of the shaft. The trunk is arranged inclined to swing in both directions.

Abstract: A cover belt conveyor for delivering bulk materials or piece goods includes, a basic belt (1) and a cover belt (2), wherein at least one of these belts (1, 2) is driven. A space for the delivery strand (4) is formed in the central area of these belts, and at least the cover belt (2) is pressed on by elastic support rollers (6). At least one of the two belts (1, 2) has, in the vicinity of its two edge areas, reinforcements (3) made in one piece with the belt, which laterally delimit the delivery strand (4). The support rollers (6) above the cover belt (2) and/or the support rollers (5) under the basic belt (1) are mounted elastically on support structures (10). In the exemplary embodiment, two short support rollers (6) each for the cover belt (2) are mounted elastically in a common bracket (8) by of rubber bearings (9). The rubber bearings (9) permit the support rollers (6 ) to move by an angle in parallel to the delivery direction and in parallel to the width of the belt.

Abstract: An arrangement for laying a bridge, in which a vehicle carries a plurality of track support sections of a bridge to be laid. The vehicle has a laying device which includes a laying support with cantilevering rails traveling on rollers. Telescoping stays are located at ends of the laying support, and a left-side track-laying device and a right-side track-laying device are mounted on telescoping shafts. The telescoping shafts are displaced hydraulically across the longitudinal axis of the vehicle. Each of the track-laying device on the laying support has provision for placing the track support sections. A piston-and-cylinder is located on arms mounted at ends of a horizontal one of the shafts, whereas piston-and-cylinder is mounted on ends of a rear one of the shafts.

Abstract: A unit for the metallurgical treatment of molten steel, located in steel teeming ladles, by heating and vacuum treatment. The ladle-metallurgical treatment unit serves for the mutual treatment of steel meltings by heating and vacuum treatment. It consists of two treatment stations, each of which is provided with a stationary tank 1, 2 for incorporating the steel teeming ladle 3, 4, and each is provided with a laterally movable vacuum lid mechanism 13. A heating device with a swiveling heating lid 9, which is arranged centrally between the two treatment stations, is brought into the working position over one of the two steel teeming ladles 3, 4.

Abstract: A vehicle with its own traveling gear for towing an aircraft without draw tongue, has a U-shaped chassis frame recess that is open in the forward direction with a clamping and lifting device arranged therein for the nose wheels of an aircraft. The clamping and lifting device, which is oscillatingly suspended on the chassis frame 1, includes a pivoting and lifting ramp 8, as well as two parallel telescoping arms 10 arranged rigidly on the pivoting and lifting ramp 8, with telescoping cylinders 11 and with gripping arms 14, which can be pivoted in and whose nose wheel contact surfaces 18 are rigidly attached to the gripping arms 14, and of telescopingly adjustable holddown devices 12, 13, which are hinged to the support 7.FIG. 3 shows the clamping and lifting devices with the nose wheels 17 lifted.

Abstract: A cooling element for shaft furnace walls including a metallic plate body with interior coolant-carrying tubes. The lower edge of the plate body includes a holding nose for refractory brickwork. The nose has at least one additional cooling tube. The cooling element according to the present invention may be assembled completely outside the furnace in a shop. The refractory brickwork consists of small bricks which are adhered or cemented to the plate body in concentric ring sections. The refractory bricks are advantageously provided with predetermined breaking notches and the layers of brick of the brickwork are provided with expansion joints. It is possible to use bricks with different thermal conductivities for the refractory brickwork.

Abstract: To absorb thermal expansions and relative movements, as well as to transmit torques, compensators, which are provided with an overtensioning device, are installed between the tuyere connections of a blast furnace and the hot-blast circulating duct. During the regular replacement of expendable parts of the tuyere connection, at least the elbow (4) must be removed as well, so that the intermediate pipe section (5) lined with refractory material will hang freely on the compensator (1). To achieve short replacement times, the compensator (1) is fixed according to the present invention by means of a locking device, and again disengaged on completion of the maintenance work. The locking device includes two flat bars (6), which are rigidly connected at the upper compensator flange (7). Threaded bolts (9), which extend into the flat bars (6) through openings (12), are fastened at the lower compensator flange (8).

Abstract: A continuous-conveyance bulk-cargo ship unloader. It has a pickup at the bottom of an upright screw conveyor. The screw conveyor rotates around a vertical axis and relays a more or less horizontally free-flowing stream of bulk material to a sandwiched-belt conveyor accommodated in an elephant trunk. The object of the present invention is to ensure that the sandwiched-belt conveyor will be supplied to capacity as effectively as possible and with as little friction as possible. The belts that comprise the sandwiched-belt conveyor (4 & 5) are curved at the bottom. The cylinder (10) that deflects the counterforce-application belt (9) is in approximately vertical alignment with the cylinder (12) that deflects the force-application belt (11). Both cylinders demarcate an intake-slot throat (13). The intake-slot throat intercepts the particles (8) of bulk material leaving the top of the screw conveyor (3) in a horizontal or upward-sloping trajectory.

Abstract: The present invention pertains to a device for removing toxic substances, e.g., dioxins and furans, from flue gases, e.g., a refuse incinerator plant, prior to entry into the smokestack. To adsorb these toxic aromatic substances, activated carbon is mixed with 30-40 vol. % water in a filter vessel, and the flue gases in the form of chains of fine bubbles are passed through the activated carbon-water mixture. The filter vessel 1 has a perforated partition 13 acting as a gas distributor. The activated carbon sludge saturated with toxic substances is drawn off and replaced by correspondingly adding dry activated carbon and water.

Abstract: The present invention pertains to a tubular heat exchanger for operation at high gas temperature and high pressures with heat exchanger tubes, which are coiled on the greater section of their linear extension. Further, the tube bottoms have tie rods, which brace the tube bottoms. The tie rods (3) of a graduated circle (1a, 1b) are connected at several points in the longitudinal direction by rings (5) into a cage. The tie rods (3) are flattened (3a) in the area of the rings (5). The tubes arranged on the adjacent graduated circle are connected to one another in the coiled area (2a) by means of angular plates (4) in pairs in the area of the rings (5). The connection to the angular plates (4) is such that, the tube form a hollow-cylinder-shaped tube cage. At least three guiding plates (6, 6a) are arranged in each area of uncoiled tubes (2b).

Abstract: A method of strip mining coal or other minerals by way of continuous-operation winning equipment with a cylindrical winning tool that excavates strips with a more or less rectangular section. The rectangle is approximately as wide as the tool and no higher than half the tool's diameter as the equipment advances. The equipment is connected by a system of conveyor belts to a loader that deposits the excavated minerals onto a face conveyor. The face conveyor can be shifted more or less parallel to the direction the equipment moves in. A quadrilateral district is exposed as the equipment travels first along one short side, then along one long side, and finally along the other short side. Its tool lifts out a strip of mineral. The equipment turns at each end along an arc of approximately one eighth to one fourth of a circle to end up in a ramp surface that occurs when the tool is lowered and raised. A terraced wall is created by lifting out many strips as the equipment's travel is shifted to the side.

Abstract: A continuous-operation extraction apparatus for strip mining that is self propelled on continuous track treads. A cylindrically-shaped cutting extractor has cutting tools arranged on its peripheral surface. Recesses are provided in this peripheral surface for the transfer of extracted material through a chute to a first conveyor that is located axially within the cylinder of the cutting extractor. A second conveyor having loading carts connects with the first conveyor and receives the loosened material from the first conveyor. The first conveyor has an inside section which emerges from a front side of the cylinder and merges outside into a sloping conveyance section which extends vertically to substantially an upper edge of a chassis. An overhead ascending section is connected to the inside section and terminates in a transfer region where the extracted material is transferred to the second conveyor.

Abstract: A traveling device for raising or lowering persons or objects for theater stages or the like has a two-part traveling carriage. The two traveling carriage parts (1 and 2) are connected by lattice girders 3 to form one unit. Elevating platforms 4 of different sizes can be suspended on the cable winches of the traveling carriage parts. The winch frames 9 are telescopic 10. The lowering device is consequently variable in terms of the size of its elevating platform and the lifting height. The modular concept permits easy transportation in the form of individual parts and simple set-up of the lowering device.

Abstract: A take-apart drive-over bridge with cantilevers between the drive-overs. The two sections of drive-over (4) associated with each section of the bridge constitute, along with the section of cantilever (5) between them, a transport unit and are simultaneously secured to the corresponding drive-over and cantilever sections of the adjacent bridge section by the bridge-laying system, which consists essentially of a vehicle (1), a latticework outrigger (2), a main boom (3.1), and an auxiliary boom (3.2), while the bridge is being assembled. The two sections of drive-over associated with each bridge section and the section of cantilever, which is in two halves, slide together for transport and apart for assembly.The two drive-overs and the cantilever have U-shaped latticework structural sections with uprights (11 or 16) and horizontals (12 or 19) at the top.The horizontals (19) and beams (15) are removable.

Abstract: Method of optimizing the operation of two or more compressors in parallel or in series. Known methods of this type assume that the compressors are similar and attempt to optimize their operation by balancing the outputs of or the loads on the individual compressors. Although this approach is satisfactory within its limitations, it cannot be employed with compressors that are dissimilar. The new method is intended to ensure economically optimized operation of two or more similar or dissimilar compressors in parallel or in series. The new method is essentially characterized in that the operating points of each pair of compressors are mutually and incrementally displaced without affecting the total operation parameters. The affect of the displacement on the total constraint is monitored. When the variation is occurring in the direction of optimization, it is continued in the same direction. Otherwise, the pressure that the operating points are displaced in is reversed.

Abstract: A cooler for particle-laden gases in a coal-gasification plant, with an upright nest of hot-gas tubes that coil around the cooler's longitudinal axis inside its jacket and with a pipe for supplying a coolant inside the nest of tubes. The cooler has a ceramic-lined or liquid-cooled distributing head (1) with a central gas intake (2) at the top and with several diffusor-like gas outlets (3) at the bottom that open into the nest (4) of tubes and several gas outlets (5) below the nest. The hot-gas tubes are suspended from the coolant-supply pipe (v) on claws (7). The pipe has at least one intake (8) for the descending coolant and rests on a support (9) on the base (11) of the cooler or on supports (10) against the inner surface of the cooler. The mixture of steam and water ascending among the tubes is extracted through at least one outlet (14) on the jacket (12) of the cooler.

Abstract: A digital arrangement for controlling a gas or steam turbine in which operating parameters of the turbine are sensed at a regular rate. Control parameters are then calculated from the operating parameters by at least one control and regulating program with predetermined reference values. The turbine is controlled and monitored in operation, in accordance with the calculated control parameters for the purpose of safeguarding against excess speed or surging. At least two computer systems are operated in parallel and at different speeds, and communications prevail between these two computer systems. The first of the computer systems is operated at a substantially rapid rate and with a limited supply of commands, together with an individual control and regulating program having a set of reference values. The second computer system is operated at a slower rate than the first computer system and with a greater supply of commands.

Abstract: A flow target plate arrangement for the fluidizing medium of a horizontal fluidized-bed reactor, consisting essentially of the fluidized medium supply lines, the collectors, and the flow admission tubes, the flow target plate is mounted exclusively at the passage of the central fluidizing medium supply line (1) in the pipe socket (7) of the pressure tank (6). Two collectors (2), to which flow admission tubes (3) are connected on both sides in the longitudinal direction of the pressure tank (6), extend from the fluidizing medium supply lines (1) according to the present invention, in the circumferential direction of the pressure tank (6). The other ends of the flow admission tubes (3) rest on at least one crossbeam (5). The crossbeams (5) are held by longitudinal beams (4), which are connected to the supply line (1).

Abstract: A bridge-laying device is placed, together with bridges or bridge sections (26), on an armored tracked vehicle (7) used by the armed forces in various countries, after removal of the armored turret. The laying device is constructed as a unit on a guide support (10) and placed on the annular part (25) of the turret of the vehicle (7), to which it is screwed. The laying device includes laying support (10) hydraulically mobile in the longitudinal direction, a mobile front laying arm (8) and a swivelling rear jib (16). Articulated supporting legs (12) which support the vehicle during the laying operation are also provided. These supporting legs are raised when the bridge-laying vehicle (7) moves.

Abstract: A heat exchanger arrranged in a horizontally positioned container for carrying extremely hot gaseous or vapor media, a heat exchanger unit including a bank of tubes defined by tube walls, an inner port, a collector connected to the inlet port and connected to the tubes, first and second outlet ports, first and second outlet port ocllectors each outlet port collector being connected to the outlet ports and a bracket suspension connected to passages of the container for suspendedly supporting each of the inlet port and the outlet ports. The inlet and outlet ports each have a central axis, each central axis passing through a center of gravity of the portion of the heat exchanger unit connected to the associated port. The each of the heat exchanger units includes, the bank of tubes formed of tube walls, inlet ports being connected to the collector and the outlet ports being connected to each of the first and second outlet collectors.