baber/WOPTO huggingface dataset:
Patent DE-2554065-A1 (DE)
Title: Rotary drum furnace and cooler for calcining cement - where air leaving cooler is used in furnace and also in a heat exchanger
Inventor: FILGES RALF ING GRAD
IPC: F27D1/00
Filed: 1975-12-02
Abstract: Plant for calcining and cooling cement clinker or other powders has a burner to heat a rotary drum furnace attached to a rotating cooler fed in counter current with the total amt. of air required. The cold air stream is divided into two: (a) combustion air for the drum furnace (b) feeding a heat exchanger used to preheat the crude cement or for precalcining or other purposes. The novelty is the use of connections and fittings which divide the air stream where its heat content is greatest, i.e. between the furnace outlet and the cooler. A concentric satellite cooler is pref. used with air outlets leading to the furnace and to the heat exchanger via a stationary casing. Max. exploitation of the heat contained in the air used to cool the clinker is obtd. thus improving thermal efficiency.
Patent DE-2608070-A1 (DE)
Title: Sleeve bearing for horizontal shaft - has locking pins for positioning of bearing shell with removable compensation piece
Inventor: SCHULZE CLAUS ING GRAD
IPC: F16C23/04
Filed: 1976-02-26
Abstract: The sleeve bearing is for a horizontal shaft having a bearing shell, which is secured against turning, and positioned in the bearing housing via a spherical seat. The bearing shell (1) is fixed without free play at two points by locking pins (3), which pass through the bearing housing (2). The two pins are at an angle of 60 deg.-90 deg. to each other. The tip of each pin carries a removeable compensation piece (10) of soft material. The pins are fastened to the housing via a flange (6) and threaded screws (13), so that there is free play between the flange and its contact surface (16) on the housing.
Patent DE-2612058-A1 (DE)
Title: District heating plant using ambient heat - utilises generating plant waste heat and generator turbine driven blower for heat pump circuit
Inventor: BOESE KARL-FRIEDRICH DIPL PHYS
IPC: F01K17/00
Filed: 1976-03-22
Abstract: The district heating plant using ambient heat obtains its energy primarily from a basically conventional generating plant with a boiler (1), turbine (5) condenser/heat exchanger (10) and feed pump (19). However the turbine has an LP rotor (3) directly coupled to the generator (2) while the HP rotor (5) drives it through a clutch (4) through a second clutch (6) it drives the blower (7) of the heat-pump circuit. This circuit supplies the district heating system through a heat exchanger (11) in series with that fed from the generator turbine (5). From this the working fluid flows through an expansion valve (12) and a heat absorption unit (13). The water for this can be supplied directly (14) or after absorbing additional heat in the LP turbine condenser (17). The LP turbine steam is tapped (9) from the line (8) to the main heat exchanger. By varying turbine coupling, and steam/water circulation, a wide range of power and heating requirements can be met, with max. use of the ambient heat element.
Patent DE-2613971-A1 (DE)
Title: Intensifying exchange reaction rate in ion exchange systems - by relative displacement inhibition and constant co-ion content of reaction fractions
Inventor: VAJNA SANDOR DIPL ING CHEM DR
IPC: B01J47/00
Filed: 1976-04-01
Abstract: The exchange reaction rate in ion exchange systems is intensified by preventing a relative displacement of the fluid particles admitted to the bed until the discharge has been reached. The content of co-ions is kept constant by keeping constant the volume of the reaction fraction, of the admitted soln., and of the discharged fluid, and the content of co-ions of the admitted soln. This results in a higher exchange reaction rate and in a reduced consumption of chemicals. The consumption of counter ions, required for the regeneration, is very close to the equiv. value with the counter ions to be exchanged. The prods. discharged to the drainage system meet the strict regulations for environmental protection.
Patent DE-2620362-A1 (DE)
Title: Wheel mounted trench excavating machine - with detachable teeth mounted in slots on cylindrical surface
Inventor: MARAIS JACQUES HENRI MAURICE
IPC: E02F5/02
Filed: 1976-05-06
Abstract: The wheel-mounte trench excavating machine has a wheel with teeth for excavating the ground fastened to detachable sections of the wheel-rim, each section having at least two teeth. Part of the surface of each wheel section is cylindrical coaxial to the wheel, the teeth being attached to the convex face. An orthogonal plate is attached to the concave face. This plate, in a plane parallel to that of the wheel, is inserted into a circular slot and locked in place by means of a pin. The plates are therefore easily detached for repair or replacement.
Patent DE-2624756-A1 (DE)
Title: Silicon or silicon carbide tube with semiconductive coating - providing direct heating for diffusion processes in semiconductor technology
Inventor: DIETZE WOLFGANG DIPL CHEM DR R
IPC: C04B41/88
Filed: 1976-06-02
Abstract: Directly heated silicon or SiC tubes are produced by applying onto their outer surface (or at least a part of it) a powder or paste contg. a strongly doped Si, and firing to form a semiconductive coating. The Si powder to be applied as a semiconductive coating is pref. doped with B, P, As, or Sb to such an extent that the resistance of the silicon drops to 10 m omega cm. The firing temp. is >=1400 degrees C. The thickness of the semiconductive coating is >=0.5 mm. The tube is prepd. by deposition of Si or SiC from the gas phase (SiHCl3 or SiHCl2CH3) onto a graphite mandrel. A uniformly conducting coating is formed, which additionally enhances the gas-impermeability of the tube.
Patent DE-2625175-A1 (DE)
Title: Sealing cap with activating agent chamber - has cylindrical sections sliding together to shut off opening to inside
Inventor: SANNER ROLF
IPC: B65D51/28
Filed: 1976-06-04
Abstract: The vessel sealing cap has a chamber for an agent activating the vessel contents and sealed off from the latter. The chamber is formed by a first cylindrical section (18) forming a seal when inserted in the vessel mouth, closed at the end nearest the inside of the vessel and open at the other, but having a discharge opening in the cylindrical wall near the inner end. A second cylindrical section (26) slides inside the first, and is long enough to shut off the opening when thrust right home. There can be a cylindrical internal boss formed at the inner end of the first cylindrical section, and whose outside dia. is approximately equal to the inside dia, of the second section, which forms a seal shutting off the chamber from the inside of the vessel when slid over the boss.
Patent DE-2626539-A1 (DE)
Title: Axially compact external rotor motor - has ventilation fan blades welded to laminated rotor core
Inventor: PAPST HERMANN
IPC: H02K1/18
Filed: 1976-06-14
Abstract: The axially compact external-rotor motor, for driving a ventilation fan's blades, has the base of the bell-like rotor provided with a shell-like part. The ferromagnetic fan blades (5) distributed around the rotor are welded directly across the laminar rotor packet (14). The bent-over edge (136) of the shell-like part (34) is also welded to the rotor packet. This ensures a rigid connection between the shell-like part and the external rotor irrespective of the axial thickness of the rotor cage's shorting ring.
Patent DE-2627265-A1 (DE)
Title: Decanter type centrifuge with cake washing - having inserts inside bowl to cause break up of cake
Inventor: STAHL WERNER DR
IPC: B04B1/20
Filed: 1976-06-18
Abstract: Multi-stage counter current wash decanter centrifuge has conically profiled ramp type elements in the cylindrical section of the bowl. By this means a series of annular chambers of triangular profile are formed, th transported cake eing pushed into the apices of theses. The inner edges project above the liquid level and there is at least one connecting channel between adjoining chambers to permit passage of the liquid flowing counter-current to the solids. Attached to the inner surface of each chamber and projecting into a significant section of the chamber following is an insert. The surface of this contains openings. The inserts have the same or a smaller angle w.r.t. the axis of rotation as the ramps. Some can form an angle with the wedge to give a breaking edge for the cake. For use in sepns. where washing of the cake is necessary. Blockage of interconnecting passages is avoided by ensuring that the solids are finely broken up as they pass from one chamber to the next.
Patent DE-2629338-A1 (DE)
Title: Calcining shaft furnace - with cooling zone subdivided into parallel subshafts and separate fuel supplies
Inventor: MENCKE ORTWIN
IPC: F27B1/02
Filed: 1976-06-30
Abstract: A shaft furnace for the heat treatment of granular material, such as a kiln for calcining lime, includes three zones for preheating, calcining and cooling. As the free shaft cross-section changes from the calcining to the cooling zone, it is subdivided into several openings of the same size which extend into a number of separate subshafts. The smaller subshafts facilitate the maintenance of a narrowly restricted calcining temp. over the whole kiln charge, because separate fuel supplies can now be provided at the openings at the boundary of the calcining zone. The shaft kiln also has a high specific throughput rate.
Patent DE-2631253-A1 (DE)
Title: Mechanism for cocking air gun air cylinder - has cocking lever held in closed position without locking mechanism
Inventor: KLOSS PETER
IPC: F41B11/647
Filed: 1976-07-12
Abstract: The cooking mechanism has an air cylinder guided in a sleeve which carries a cooking lever for sliding the cylinder with rod connected to cocking lever and cylinder. This cocking lever has idle part in its travel and it is held in closed position firmly without special locking arrangement. The pivoted connection (7) between the cocking lever (4) and the rod (8) lies closer to the sleeve (1) in the closed position of the cocking lever than the pivoted joint (5) between the cocking lever and the sleeve. The rod is pivoted by a connector (9, 10, 11, 15) on the air cylinder (3) so that this connector is flexible on compressive loading and rigid on tensile loading.
Patent DE-2633773-A1 (DE)
Title: Multiple-sock air and gas filter with blow-back - using sock contraction to activate blow-back piston valve and oscillating hammer
Inventor: WOLF WILHELM
IPC: B01D46/06
Filed: 1976-07-28
Abstract: Filter socks with fixed open ends are kept in fully extended position by spring-loaded end supports. Dirty gas flow is from outside inwards and by radial pressure causes sock contraction. This eventually, through movement of the end support, opens a valve in the blowback air line which equalises pressures. The sock is extended and cleaned and the cycle repeats.
Patent DE-2640385-A1 (DE)
Title: Saw frame oscillating mass compensation system - involves double wound pendulum as second counterweight hinged to rotatable carrier
Inventor: BLASY MARTIN DIPL ING
IPC: B27B3/12
Filed: 1976-09-08
Abstract: The device for compensation of oscillating masses in saw frame operation is esp. for use where there is one counterweight seated off-centre on the flywheels on both sides Another runs coaxially but counter to the first, elastically coupled to the flywheels for revolution at the same rate. The resultant gravity forces counter-act those of the saw frame. Each of the second counterweights is a double-wound pendulum hinged to a rotatably driven carrier (7). The radius of rotation and the length of the two guide-rods (9) between the pendulum weight (11) and carrier are such that the factor for relationship between inherent frequency and revolution rate is less than one.
Patent DE-2646519-A1 (DE)
Title: Aerator and stirrer for liquid effluent - designed to disperse gas in small bubbles without surging
Inventor: POEPEL FRANZ PROF DR ING
IPC: C02F3/20
Filed: 1976-10-15
Abstract: An aerator for liquid has a rotor under the liquid surface. It is driven and draws air through a submerged tube leading to the surface and liquid from below. The rotor resembles a double sided centrifugal pump in pallor. The housing forms guides on each side of the rotor. The submerged tube opens near the rotor and is surrounded by a screen roughing at right angles to its axis. The screen axially and radially extends as closely as possible to the suction region of the rotor and may be formed by the rotor. Used for aerating and stirring effluent water, sludge, liquid fertiliser and substrates with high contents of organic materials. The aeration promotes physical, chemical or biological reactions e.g. flotation of colloidal material neutralisation of alkali by flue gas, removal of carbon from acid water, oxidation of organic material. The gas is dispersed as fine bubbles which rise only slowly. The working is stable and does not draw in rapidly varying volumes of air.
Patent DE-2649764-A1 (DE)
Title: Slide changer for projector - has continuously running motor coupled to changer unit by electromagnet
Inventor: NEUMAIER HANS
IPC: G03B23/04
Filed: 1976-10-29
Abstract: Swing lever arm (13) rotates round a vertical shaft (12). The arm is connected to worm wheel (11) which has sawteeth (14) on its lower end. Below a band (28) with a circumference moving around a peg (30), can pass through exist (29) thus disengaging the base plate (18) when an electromagnet is active. Band (28) has a rest groove (31) where a spring-loaded latch (32) clicks in as it comes into contact with it (31). The base plate (18) is loaded with spring (25) and has rotational play around a fixed peg (22). This rotational play is equal to the length of slit hole (23). A motor (21) is constantly running and is connected to a pulley (19) by a rubber belt (20). On demagnetising the electro-magnet the worm drive (15) is coupled with worm wheel (11) and by virtue of sawteeth (14) and threads (16) a to and fro movement is produced in swing lever arm (13).
Patent DE-2649989-A1 (DE)
Title: Low pressure membrane fluid actuator - has membrane fixed at periphery and rolling around actuating rod at centre
Inventor: HOFFMANN RUEDIGER DIPL ING
IPC: F16J15/52
Filed: 1976-10-30
Abstract: The working element is charged by low pressure and has an actuating rod, fastened to the support plate of the working membrane. The rod is guided in an aperture of the membrane housing, having an elastic roll membrane cover. The roll membrane (21) and the membrane (6) surrounding the support plate (8), are integrally moulded about the plate and the rod (7). The plate has apertures (26), which are filled by the roll membrane material during moulding. A roll membrane section away from the rod, which engages over the membrane housing aperture (18), has a thickened edge (23), inserted into a groove (22) on the collar-like section (17) of the membrane cover (3).
Patent DE-2650061-A1 (DE)
Title: Reciprocating piston engine with exhaust turbocharger - has turbine fed from charger compressor with exhaust timing advanced at low engine load
Inventor: HAPPEL ROBERT
IPC: F02B37/16
Filed: 1976-10-30
Abstract: The reciprocating piston engine, comprises an exhaust-driven turbo-charger (10) containing a compressor (9) and a turbine (8). Under low partial load conditions, at least at low speed, the compressor supplies the turbine whilst at least part of the exhaust gas is fed to the turbine during the early part of the expansion stroke. Each cylinder may have an inlet (5) and an outlet valve (6) whilst additionally the exhaust timing is advanced as a function of the engine load condition. The valve may be operated via a lever (14) swivelling on an adjustable pivot and having a tapered surface (16) on which the valve rocker (13) acts.
Patent DE-2654330-A1 (DE)
Title: Dynamometer calibration and checking appts. - has hydraulic cylinder and weights for applying force to dynamometer through master dynamometer and directly respectively (SW 5.6.78)
Inventor: CHARITONOV IVAN IVANOVITSCH
IPC: G01L25/00
Filed: 1976-11-30
Abstract: The appts. for the calibration or checking of dynamometer incorporates two frames one of which is rigidly attached to a bedplate and the other is movable relative to the first one. Interposed between the frames is the dynamometer being subjected to calibration or checking and interacting with it is a hydraulic cylinder of applying a force which applies a calibrated force through a master dynamometer. The appts. incorporates standard weights for applying a force only to the dynamometer being subjected to calibration or checking which assures that the master dynamometer is relieved of the force applied.
Patent DE-2654541-A1 (DE)
Title: Deviation detector for AC signal - has switching circuit delivering signal when DC component is at either max. or min.
Inventor: RAGGENBASS WERNER
IPC: G01R19/165
Filed: 1976-12-02
Abstract: The detector senses any deviation of an a.c. signal from a specified characteristic. The a.c. signal is applied to a circuit that delivers a signal when the d.c. component is at either a max. or min. This signal is completely outside a stationary signal area during a specified min. period, or when the a.c. component is at a min. and the peak-to-peak signal amplitude falls below a specified min. value during a specified min. period. Once a signal is delivered it can be suppressed only on reception of an erasing signal. The switching circuit can comprise an a.c./d.c. signal AND gate (3) with two inputs (1, 5). An a.c./d.c. converter (7) follows the gate (3) and has its output connected to the d.c. input (5) of the AND gate (3).
Patent DE-2655780-A1 (DE)
Title: Secondary device for part of linear motor - has mechanical and other means reducing deformation by heat of secondary component
Inventor: GROSS HANS DR ING
IPC: H02K41/025
Filed: 1976-12-09
Abstract: The linear motor has a primary part in the form of a single or a double comb, over which runs the rectangular secondary part at a small distance from the primary part, and projecting beyond it on both sides. The massive secondary part (1) is provided with form stabilising mechanical measures preventing is deformation and curving. A further device can be used, affectin for the same purpose distribution of losses and heat in the secondary part. This is comprised of copper or aluminium plates with smooth surfaces, and pressed together in the form of a packet.
Patent DE-2656727-A1 (DE)
Title: Stoppage of poly:oxyalkylation reaction in dangerous conditions - by adding blocking agents mainly contg. halogen-contg. gps.
Inventor: GEHM ROBERT DIPL CHEM DR
IPC: C08G65/329
Filed: 1976-12-15
Abstract: The immediate stoppage of a polyoxalkylation reaction in presence of a basic catalyst is effected by adding to the reaction mixt. (a) an alkylating agent, (b) a carboxylic acid halide, (c) a sulphonic acid halide, (d) a halogen deriv of methane and/or (e) a low mol.wt. organic cpd. contg. active halogen atoms. The blocking agents (one or more) are used to stop the polyaddn. of alkylene oxides (e.g. ethylene oxide) to low mol.wt. cpds. contg. active hydrogen (e.g. water, NH4OH, amines etc.) in presence of basic catalysts (e.g. Na methylate, KOH). Because of their rapid reaction, they prevent pollution of the atmosphere or possible explosion of the polymerisation vessel should the process get out of hand because of, e.g. too high a polymerisation temp. or pressure or too high an alkylene oxide content.
Patent DE-2712724-A1 (DE)
Title: Rail vehicle safety device - comprises sleeper mounted magnet operating reed switches via stirrup depending from vehicle
Inventor: HUEBNER KURT
IPC: B60L15/40
Filed: 1977-03-23
Abstract: A safety device for rail vehicles includes a transmitter for radiation of electromagnetic radiation of predetermined frequency and a receiver coupled to the brakes of the vehicle, together with a switch changing the transmitter to another frequency on change of section of the track. A stirrup mounted below a rail vehicle carries a number of reed switches for selection of one of twelve separate frequency channels, to be radiated by a transmitter. The reed switches are operated by a permanent magnet mounted on a sleeper in the vicinity of the points. The receiver is coupled to a magnetic valve in the brake air line and operates the brakes to prevent a collision when it receives a signal of same frequency indicating that another train is present in the track section.
Patent DE-2718165-A1 (DE)
Title: Crimping tool for fastening contacts to bare ends of cables - has insertion device temporally holding contact, and then moving it into crimping tool
Inventor: OBERBERG WILLI
IPC: H01R43/042
Filed: 1977-04-23
Abstract: The contacts are springs, tags etc., and a two-part crimping tool is used between two jaws or dies. An insertion device (22) is allocated to the crimping tool (14, 15) and has a receiving element (25) for temporary holding a ontact. The element can be moved between an insertion position outside the crimping tool working area, and assembly position in the tool working area. The pivoting axis of the insertion device is parallel to the longitudinal axis of the contact in the assembly position. The latter position is defined by a stop limiting the movement of the insertion device.
Patent DE-2731153-A1 (DE)
Title: Monovalent blocking antibiotics and antibody fractions - are isolated from urine of animals immunised with organ extracts
Inventor: THEURER KARL DR MED
IPC: A61K38/00
Filed: 1977-07-09
Abstract: In the prodn. of monovalent blocking antibodies of antibody fragments against growth-regulating substances and cell-membrane receptors by active immunisation of antibody-forming individuals with organ or cell homogenates or extracts or factors obtd. from them (e.g. growth factors from thymus, saliva glands etc., growth-inhibiting factors such as organ-specific chalones, or receptors for hormones, tissue hormones or drugs), the antibodies or antibody fragments are isolated from the urine by ion-exchange chromatography, gel filtration, membrane filtration and centrifugation, opt. after treatment with drugs which at an appropriate dosage cause an increase in physiological proteinuria (e.g. nephrotoxic agents, homeopathic agents and/or diuretics). The antibodies and antibody fragments are useful therapeutically for e.g. gene activation, stimulation of synthetic processes, antagonising growth-promoting agents (e.g. in cancer), and for inactivating or stimulating receptors.
Patent DE-2736256-A1 (DE)
Title: Radioactive liquid effluent disposal by evaporation - in cooling tower esp. after preliminary treatment used esp. for regions with limited water
Inventor: STUENKEL HELMUT DIPL ING
IPC: F28B1/06
Filed: 1977-08-11
Abstract: A method of disposing of radioactive waste water in a nuclear power plant equipped with a cooling tower consists of evaporating the waste water in the cooling tower. Pref. the water is first pretreated by one or more evaporation stages before it is evaporated in the tower. The method is partic. applicable where a dry cooling tower is used, the evaporation of the waste water taking place intermittently, with intervening periods in which an activity-free flushing agent is injected into the discharge line. In particular for a nuclear power plant in a region with a very limited water supply, e.g. a desert region.
Patent DE-2737322-A1 (DE)
Title: Ornamental brick for garden wall - comprises two arms forming lattice with adjacent similar bricks and corrugated to fit together
Inventor: BUSCHOR ROMAN
IPC: E04B2/02
Filed: 1977-08-18
Abstract: The ornamental brick (1) esp. for garden walls comprises two arms (2, 3) extending at an angle, pref. 90 deg., to one another. At the junction of the arms, and at the outside of the angle, the brick has a flat (5) perpendicular to a line bisecting the angle. Two bricks may be joined by being abutted at their corner flats. Each brick has flats (7) at the ends of the arms so that two bricks may be abutted at the latter flats, all to form a lattice. All the flats may have ribs and grooves so that when the bricks are assembled the ribs of any one brick engage the grooves of the adjacent brick and relative sliding of the bricks is avoided.