baber/WOPTO huggingface dataset:
Patent DE-4008610-A1 (DE)
Title: IC engine with three inlet valves per cylinder - has throttle valves to vary flow through two inlet valves
Inventor: KRAEMER MICHAEL DR ING
IPC: F02B27/02
Filed: 1990-03-17
Abstract: An internal combustion engine, of the type which compresses a mixture fo air and fuel, has three inlet valves (12, 13, 14) per cylinder (1) to (8). The first (12) and third (14) inlet valves are connected to a common inlet manifold (27) whilst the second inlet valves are connected to the manifolds (30, 31). The throttle valve (24, 25) is fitted in each duct (15) which connects a first (12) or third valve (14) to the manifold (27). These throttle valves (24, 25) are so controlled that they are held closed at low engine speed and are open at speeds above the middle of the range of engine speed. The valves (12, 13, 14) are so positioned that the third type (13) is between the first and third type valves (12, 14). USE - Internal combustion engines.
Patent DE-4012119-A1 (DE)
Title: Air cleaning catalytic oxidiser and ancillaries - using oil as fuel and comprises cold air blower, heat absorbing side of heat exchanger, heater, oxidn. reactor with catalyst, etc.
Inventor: KOCH CHRISTIAN DR ING
IPC: B01D53/86
Filed: 1990-04-14
Abstract: Air bearing a pollution load may be cleaned by catalytic oxidn. within a reactor. Units forming the air cleaning assembly are in the sequence: cold air blower for polluted air; heat absorbing side of the heat exchanger; heater; oxidn. reactor with catalyst; the venturi mixer; and heat surrendering section of the heat exchanger. The venturi mixer is co-located with blower burner flame tube; the channel between the venturi-mixer outlet and the surrendering side of the heat exchanger has a connection for the blower; sensors are a control circuit which links; heater upstream; before, between and after the catalyst; heater; blower burner and the blower. ADVANTAGE - Provides a reliable and economic air cleaning in an installation which may use oil as the fuel with no damage to catalyst during the warm-up phase.
Patent DE-4016202-A1 (DE)
Inventor: DAL PALU ATTILIO
IPC: B60S1/40
Filed: 1990-05-19
Abstract: In a wiper arm and blade assembly comprising arm 2 and blade part 14 at least partly housed within the arm, the arm and blade are connected together by a pin 15 which passes through holes 26, 27 in blade and arm respectively and which is axially locked by a locking element 34 having a portion 35 with hole 37 through which the pin extends and movable between a first position in which the inner periphery of hole 37 engages the intermediate portion 29 of the pin and a second position in which it is disengaged therefrom and resilient tabs 38, 39 for preventing withdrawal of the locking element from the engaged position. The locking element is released by application of pressure manually to end 40 of the element, which causes tabs 39 to flex and hole 37 to register with holes 26, 27 permitting withdrawal or insertion of the pin. <IMAGE>
Patent DE-4020448-A1 (DE)
Title: Brake pressure pick=up for antiskid braking system - is integral construction for fluid reservoirs and master cylinder with mountings for solenoid valves
Inventor: ZAVISKA DALIBOR
IPC: B60T13/68
Filed: 1990-06-27
Abstract: The simplified construction master brake cylinder is in one casting with the fluid reservoirs (3). The solenoid valves that connect to and from the wheel brakes are mounted in the fluid reservoirs, the fluid cooling the valves. The return flow ducts from the valves are direct into the reservoirs. - The whole system is covered by a single cover (8) with top-up facility and with a fluid level sensor. The master cylinder has several pressure chambers (4,6) for the different output pressures. The casting is injection moulded or vacuum cast.
Patent DE-4025654-A1 (DE)
Inventor: ZIEBACH HELMUT
IPC: F16K27/02
Filed: 1990-08-14
Abstract: An axially movable valve piston (3) and a rotatable spindle (2), which are connected to one another via a thread (24; 32), are guided in a head piece (1). A sealing ring (5), which projects beyond the end of the head piece (1) facing the inlet, is held by the head piece (1). The sealing ring (5) is constructed on the projecting outer end as a face (54) for resting in a touching manner on a valve seat (62) and is constructed on the opposite inner end as a lip seal (52) which interacts with the valve piston (3). The valve piston (3) is flat in its part which interacts with the lip seal (52) and is constructed without seals. 
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Patent DE-4032467-A1 (DE)
Title: Curved awning
Inventor: BOTTERLI INGVAR
IPC: E04F10/04
Filed: 1990-10-12
Abstract: Curved awning
Patent DE-4033512-A1 (DE)
Title: Method for printing wrapping material -  involves application of print while material is fed to goods to be wrapped
Inventor: BEKKER-MADSEN PER
IPC: B41M5/26
Filed: 1990-10-22
Abstract: The strip-form wrapping foil is drawn from a bobbin (2), and from its commencement a section (3,4) is sepd. for each item of goods (6,7) to be wrapped. Prior to these sped. sheets reaching the wrapping station (8), wrapping (4) and printing (10) sections of each sheet are determined. The printing section has a predetermined geometrical orientation to the corresp. wrapping section, and this is done by markers (5,42). Printing takes place by a transfer printer (11) in accordance with a known procedure during the movement of the foil to the wrapping station (8). USE - To print wrapping material prior to it being applied to individual items of goods.
Patent DE-4038684-A1 (DE)
Title: Fibre flocking processing assembly - has sensors to monitor moisture content and temp. at various stages
Inventor: LEIFELD FERDINAND DIPL ING
IPC: D01G31/00
Filed: 1990-12-05
Abstract: In the assembly to condition fibre material, taken from a bale breaker, such as cotton, sensors (33a-33d) register the moisture taken up by the fibre material. Pref. thermal sensors (34a-34d) measure the temp. of the fibre material. The moisture sensors (33a-33d) and/or the thermal sensors (34a-34d) are in direct contact with the fibre material or are in the chambers filled with the fibre material passing through. The chambers for the fibres, where the condition is monitored, are a filling shaft (7a,14a,18a) for fibre processing machines such as a loader (7,18), mixer (13), cleaner  (8,9,19), a card (25) and the like. The sensors (33a-33d;34a-34d) for moisture content and/or temp. monitor the fibre material fed to some processing machines, such as the cleaners (9,19) and card (25) or the like. Sensors for moisture content and/or temp. monitor the carded web. An air opening is in the feed channels for the conditioned air fed to to various process stages in the assembly. The sensors are connected to a control (37) which adjusts setting units to vary the supply of conditioned air and/or moisture and/or temp. levels in the air feed. The conditioned air is fed directly to various assembly stages, through dedicated air inlets at each. ADVANTAGE - The measurement of the moisture content in the fibres is simply taken, and is reliable.
Patent DE-4102256-A1 (DE)
Title: Production of shaped objects especially surgical implants - shape is copied using computer tomography, and radiation-hardening material is made from or coated with biocompatible substance
Inventor: KRANZ CURT DR ING
IPC: A61F2/00
Filed: 1991-01-23
Abstract: A procedure for making objects of any required shape uses a tank filled with a liq. which can be hardened by energetic radiation and contg. a support for the object to be formed, and radiation source directed onto the surface of the liq. The support is lowered into the liq. as the required shape is built up in successive layers. A surgical implant (19) is constructed using surface contour data obtd. by measurement. This data is at least partly obtd. by an image-forming procedure, and esp. by computer tomography. The data is transferred via a data storage unit to radiation source control unit (1). The body produced by radiation hardening may be used as a mould in which the implant is cast, the mould being broken up to remove the cast item. The data may be treated so as to reduce the size of the object, or adjust the size of the mould in order to take into account the thickness of a surface layer to be applied later. USE/ADVANTAGE - Used for producing surgical implants esp. for use in surgery on the human face, or for making internal prostheses. Allows the radiation-hardening method to be used for making implants from bio-compatible materials.
Patent DE-4121005-A1 (DE)
Title: Thyristor railway track switches forced commutating system for supply rectifier substation - contains common capacitor in parallel with clearing capacitors, of all path branches and reduces clearing capacitor voltage loading
Inventor: DRESLER UWE
IPC: H02M7/155
Filed: 1991-06-21
Abstract: The system for a rectifier network connecting a three-phase and/or a d.c. bus bar to a corresp. d.c. path contains a clearing circuit with a clearing thyristor and capacitor. A capacitor (C) common to all path branches has one pole coupled to the supply network and is connected via a bus bar (A) in parallel with the clearing capacitors (CL) of the path branch cells (SAZ1, SAZ2, SEZ). USE/ADVANTAGE - For supplying d.c. current paths from three-phase of c.d. networks. Forced thyristor clearing reduces voltage load on clearing capacitors compared to conventional ones.
Patent DE-4128258-A1 (DE)
Title: Seed coating appts. - has controlled sprays and hot air feed to recirculating material in rotor for consistent coating and drying
Inventor: HOERNER ERNST-LUDWIG DIPL ING
IPC: A23B9/14
Filed: 1991-08-26
Abstract: To give an enclosed and consistent coating to granular material, e.g. seeds, the seeds are fed into the granulator with an open top, while the rotor is rotating, to give a filled vol. of about two-thirds of the height of the deflection funnel (5). Pressure of the compressed air at the pressure chamber (4) is adjusted to give an air flow through the ring gap (3) and keep it free of particles. Heated air (12) from a controlled fan, to give a constant controlled temp., is fed through an air tube (11), through the ring channel (10) and through a thin-walled ring sieve or splitting surface (9) at the recirculating loose matter (7), at a level from one-half to three-quarters of its height. As the loose material expands, the air feed is increased, to form a flow bed in the expanded material (8) above the stator (2) level, until the grains from a small outlet streak at their inner circumference. Recirculating loose material (8) is subjected to a controlled spraying of a dissolved or suspended coating material through jets (16,16'), using compressed air, within the free inner zone or at the stator (2) wall. Jets (16,16') are located at a gap and angle of 15-45 deg. to the planes and tangents towards the recirculation, closely for distribution, with simultaneous extraction of the solvent or suspension fluid by the hot air (12). Coating action is continued until sufficient material has been delivered to coat all the grains, which are then dried by the hot air (12) to a final residual moisture suitable for storage. Granular material is removed by opening (18) a side wall of the stator (2), or by tipping the granulator on a lateral axis. Controlled hot air (12) feed is pref. initially dehumidified to increase its drying capacity, and its temp. is monitored (14) in the ring channel (10) for a control to maintain it at a constant value within 40-90 deg.C. Vol. of the hot air (12) feed is monitored (13) to be controlled at a constant level, and ensures that it remains constant while blown through the expanded loose material. As the granular material is expanded (8), the loading on the rotor drive is relaxed, and its torque is reduced under control by 10-15%, and then held constant to give a steady material recirculation. USE/ADVANTAGE - Technique gives an effective coating action to constantly recirculating grains, with an effective drying action.
Patent DE-4140544-A1 (DE)
Inventor: ZEISE CHRISTIANE DR
IPC: C02F1/54
Filed: 1991-12-09
Abstract: The application describes a method of reducing the amounts of heavy-metal impurities in waste water, at the same time reducing the CSB and AOX values, by means of a multi-stage process which includes a preliminary deflocculation stage using an organic-polymer deflocculating agent, a subsequent precipitation stage using an inorganic calcium-based or, in particular, chalk-based precipitant and, finally, separating off the solids thus formed. The method proposed is characterized in that the precipitation is carried out at least partly with calcium hydrogen phospate formed in situ. In an important embodiment of the invention, part of the solids formed an separated off from the purified waste water is recycled in subsequent stages of the process in which additional amounts of unpurified waste water are treated by the method proposed. The method is suitable for the treatment of aqueous wastes contaminated with, for instance, nickel, copper, cadmium, chromium, zinc, lead, manganese, arsenic and/or mercury, and leads to a significant reduction in the heavy-metal content, at the same time reducing the concentration of organic matter in the waste water.
Patent DE-4202122-A1 (DE)
Title: Trigger for switch devices has thermal overcurrent trigger - uses current through U=shaped bimetallic strip to generate magnetic field for quick triggering
Inventor: SCHNURPFEIL THOMAS DIPL ING
IPC: H01H71/40
Filed: 1992-01-27
Abstract: The trigger for switch devices has a thermal overcurrent trigger including at least one U-shaped bimetallic strip (2) and an electromagnetic quick trigger. The current flowing through the bimetallic strip is used to generate a magnetic field for the quick trigger. A magnetic yoke (5) of the quick trigger includes one of the legs (7) of the bimetallic strip. The other leg (9) passes outside the yoke. This contributes to increasing the magnetic flow in the yoke. USE/ADVANTAGE - Especially for low voltage motor protective switches or low voltage power switches. Has high trigger sensitivity and simple construction without increasing cost.
Patent DE-4204731-A1 (DE)
Title: Ignition system with pre-discharge gap for IC engine - has high-voltage gap shorted out by relay contact unless indication of poor combustion is received
Inventor: TSUCHIYA HIROMITSU
IPC: F02P9/00
Filed: 1992-02-17
Abstract: Secondary pulses of high voltage from the ignition coil (2) are distributed to sparking plugs (4) with defined gaps (5). Between the coil (2) and distributor (3) an inert-gas-filled discharge gap (6) is inserted in the high-voltage cable and bypassed by the contact (15b) of a relay (15). Signals from sensors of exhaust O2 concn.,coolant temp. etc. denoting unsatisfactory combustion cause the relay contact (15b) to open, so that the ignition voltage is dissipated across the predischarge gap (6) before reaching the distributor (3). ADVANTAGE - All cylinders are fired via a single predischarge gap having a longer lifetime.
Patent DE-4209292-A1 (DE)
Title: Spent metal and/or oxide catalyst regeneration by mechanical crushing - with specified energy density, esp. for catalyst used in oxidn., hydrogenation or hardening of fat, oil or fatty acid
Inventor: OSER ERWIN DR
IPC: C22B1/00
Filed: 1992-03-21
Abstract: Treatment of spent catalysts (I), esp. metal, metal oxide or metal-metal-oxide catalysts, comprises crushing (I) mechanically to particles finer than 10 microns, using a mechanical energy with an energy density of 0.5-500, pref. 10-100 kW/l reactor vol. The metal component is converted to a deriv. before or during mechanical crushing, then the deriv. is converted to the metal (by redn., pref. with H2). The deriv. may be an oxide, hydride, carbide, nitride, nitrite, nitrate, carbonate, sulphate or halide. Crushing pref. is carried out in the presence of metal derivs. forming the metal or metal oxide of the catalyst, so that the reaction of the prod. regenerates (I). The spent (I) is crushed to particles finer than 4, pref. 0.1-4 microns, esp. with a narrow particle distribution with d50 = 0.1-1 micron. Crushing is carried out for 1 s to 60 min, pref. 5-15 min., with cooling, pref. in the presence of a fluid (oxidising or reducing fluid), esp. a liquid, pref. by milling. USE/ADVANTAGE - (I) are heterogeneous catalysts used in chemical processes, esp. oxidn., hydrogenation or hardening of fats, oils, fatty acids and/or their derivs. This regeneration treatment is very effective, simple and economical
Patent DE-4210566-A1 (DE)
Title: Fuel injection unit equipped with nozzle and pump for IC engine - operated with pre and main fuel injection with piston moving axially in pump housing with endface defining high pressure chamber and in initial position connected with supply duct
Inventor: DAHLMANN GERD-UWE DIPL ING
IPC: F02M41/12
Filed: 1992-03-31
Abstract: A pilot piston (15) also moves longitudinally as the main piston depending on the pressure in the high pressure chamber (10) to define a storage space (16) on its side away from the latter and, depending on its longitudinal position, can communicate with a nozzle feed duct (18) to give pre-injection only. The high pressure chamber gives main injection only or not at all to give an injection interval. An auxiliary piston (11) is supported by a spring. Both the pump piston (3) and a distributor pump piston carry out rotational movements in a longituidnal recess (7) which lies between a stop (9) with a longitudinal duct (8) and the auxiliary piston (11) to form a storage space (16). At least one distribution bore (17) extends from the storage space, for selective communication with individual nozzle feed ducts (18) to be covered during the stroke of the pump piston between the pre and main injections. The pilot piston (15) is provided with a duct system (23, 24), opening out at its circumference, which stands in flow communication with the HP chamber (10), across the longitudinal duct (8) in the stop (9). The longitudinal position of the pilot piston, for the main injection, communicates with the distribution bore (17). ADVANTAGE - Longitudinally moving pilot piston positioned by pressure control. Preinjecton by reducing vol. of storage space on one side. On other side, after expiry of injection interval, communicates high pressure chamber with nozzle feed duct for main injection.  Dispenses with solenoid valve.
Patent DE-4213696-A1 (DE)
Title: Barrier for cracking heavy hydrocarbon(s) - having heated surface for cracking and a labyrinth to increase dwell time and prevent e.g. oil passage through vacuum pumping line or particle accelerator beam guide
Inventor: HAAS HERBERT
IPC: F16L53/38
Filed: 1992-04-25
Abstract: A barrier, preventing spreading of heavy hydrocarbons in containers and pipelines by migration along internal surfaces or by molecular flow, consists of a heated surface for cracking the hydrocarbons and a labyrinth for increasing the dwell time of gaseous hydrocarbons in the effective region of the heated surface. The heated surface may consist of several independent parts and an annular region of the inner surface of the container or pipeline may form part of the heated surface. The labyrinth may also be heated. The heated surface or the labyrinth may be provided with a catalytic surface or may consist of or contain getter materials. The labyrinth pref. consists of tubes, sheets, woven mats or porous materials. USE/ADVANTAGE - The barrier is useful for preventing heavy hydrocarbons (e.g. oil film, mist or vapour) passage from vacuum pumps to ultrahigh vacuum chambers or from experimental equipment to an accelerated proton storage ring. It interrupts oil layer migration and effects thermal or catalytic cracking into light components (e.g. H2, CH4 and C) which can be flushed, evacuated or gettered from the process.
Patent DE-4215763-A1 (DE)
Inventor: POESCHL GUENTER
IPC: F23C9/00
Filed: 1992-05-13
Abstract: A burner with a burner head (B) and a flame tube (F) is provided, with the burner head (B) having a concentric outlet arrangement of air and fuel feed nozzles. Following this a mixture of low-nitrogen air and fuel is produced, which is ignited in a chamber (11) in the interior of a hollow body (20). Hard-to-burn, noncombusted gas compounds flow upon exiting from the hollow body (20) along the exterior surface thereof back into the region before the hollow body (20) and flow again together with low-nitrogen air into the chamber (11) for combustion. This additional combustion increases the energy yield of the fuel and reduces the quantity of pollutants in the exhaust.
Patent DE-4217994-A1 (DE)
Title: One-piece folded presentation box for bed linen - has vertical support wall at each end of two cover edge cross strips and locking tongues and connecting tabs to avoid need for adhesives.
Inventor: VALENTIN KLAUS
IPC: B65D5/20
Filed: 1992-05-31
Abstract: The vertical support walls (18) adjoin each end of the cross strips (13) by a longitudinal folding line and are each folded round to adjoin the outside of the adjoining upstanding side wall (2). The height of the support wall corresponds to the height of the side wall and a connecting tab formed as an arrow-headed locking tongue (20) on the support wall is pushed into the box through an insert slit at the bottom of the side wall (2). To set up the box the side walls and then the end walls are raised up and the cover edge cross strips swivelled down onto the side walls. USE/ADVANTAGE - Easy handling from outside of box. Vertical support walls direct stacking pressures into base of box. contents can be viewed through incomplete cover surface.
Patent DE-4219090-A1 (DE)
Title: Device for breaking up chips produced by metal machining - incorporating grinding discs with adjustable shear groove width
Inventor: LANNER KLAUS
IPC: B02C18/12
Filed: 1992-06-11
Abstract: The device consists of a conical grinding hopper (2) provided with inclined ripping blocks (3), a rotating knife head (4) with ripping (6) and corner (5) knives, and a grinding unit located below the hopper (2). The grinder is formed by a rotating shearing head (33) and at least two surrounding ring-shaped grinding discs (25,26) located on top of one another. The inner surface of these rings, which are rotatable relative to one another, incorporates equally paced shear grooves, while the shearing head is provided with shear knives (34) distributed over its circumference. USE/ADVANTAGE - In metal machining plants. In contrast to known devices, it allows the maximum break-up length of chips to be altered.
Patent DE-4221583-A1 (DE)
Inventor: HUEBSCH WALTER DR
IPC: C07D401/10
Filed: 1992-07-01
Abstract: Substituted biphenylpyridones of the general formula <IMAGE> in which R<1>, R<2>, R<3>, R<4>, R<5> and A have the stated meanings, and D is a radical of the formula <IMAGE> in which R<13> and R<14> have the stated meanings, can be prepared by alkylation of pyridones on the nitrogen. The substituted biphenylpyridones are suitable as active ingredients in pharmaceutical compositions, especially in pharmaceutical compositions which lower blood pressure and have antiatherosclerotic effects.
Patent DE-4228146-A1 (DE)
Title: Seat belt tensioning system for vehicle - uses energy absorber to take up kinetic energy after tensioning action
Inventor: SPECHT MARTIN DIPL ING
IPC: B60R22/28
Filed: 1992-08-25
Abstract: The tensioning system is for a vehicle seat belt. After a tensioning force has been applied to the seat belt (7) an energy absorber (8) comes into effect to take up the kinetic energy acting counter to the tensioning direction. The energy absorber is formed by ribs (4) running in the longitudinal direction of a tube (6). The ribs are formed on the carrier material (11) which also serves as the guide and support body for the locking element (13) of the recoil block (10). USE/ADVANTAGE - Seat belt tensioning system for vehicle reduces the whiplash effect following the belt tensioning action.