baber/WOPTO huggingface dataset:
Patent DE-3839451-A1 (DE)
Title: Multi cylinder internal combustion engine
Inventor: WEISS ECKHARD DIPL ING
IPC: F01L13/06
Filed: 1988-11-23
Abstract: In a multicylinder internal combustion engine, especially for driving a motor vehicle, an additional exhaust valve for each cylinder controls a throttle line between the cylinder chamber and an exhaust port in such a way that during braking operation of the internal combustion engine air is expelled from the cylinder chamber into the exhaust port performing throttling work. In order to prevent air being pumped from cylinder to cylinder, a non-return valve opening towards the exhaust port is arranged in each throttle line, which valve keeps the throttle line closed when the pressure in the exhaust port is higher than the pressure in the cylinder chamber.
Patent DE-3840403-A1 (DE)
Title: Mechanical manual shift transmission for commercial vehicles
Inventor: PIGOZZI GIAN MARIA
IPC: F16H3/091
Filed: 1988-11-30
Abstract: A manual shift transmission (1) comprises a main transmission unit (5) with a plurality of forwards transmission ratios and a reduction unit (2) with at least one forwards transmission ratio and a reverse transmission ratio. The reduction unit (2) is arranged on the input side of the main transmission unit (5) and is actuated by electro-pneumatic devices, which are controlled by two selector switches (65, 66) arranged on a gearshift lever (64) for the mechanical actuation of the main transmission unit (5). <IMAGE>
Patent DE-3841325-A1 (DE)
Title: Inert-gas nozzle, designed as a flat nozzle, for inert-gas welding torches
Inventor: SCHULZ UMBERT
IPC: B23K9/29
Filed: 1988-12-08
Abstract: In an inert-gas nozzle 1 for a welding torch, having a contact tube 6, extending into the vicinity of a consumable wire electrode 7 and guiding the latter, and one inert-gas passage each, formed by the flat nozzle 3, on both sides of the contact tube 6, the free end face of the flat nozzle 11 is of concave design. A more intensive inert-gas bell can thus be achieved at the weld 8 and a better welding result can be achieved overall. <IMAGE>
Patent DE-3903338-A1 (DE)
Title: Moisture-curing one-component polysiloxane compositions
Inventor: WEBER WILHELM DIPL CHEM DR
IPC: C08K5/544
Filed: 1989-02-04
Abstract: The invention relates to one-component silicone systems which cure in the presence of moisture through elimination of alcohols, have a good shelf life in the unvulcanised state, have good adhesion to many substrates, are neutral in odour and can be prepared using stabilising aminosilanes.
Patent DE-3905034-A1 (DE)
Title: Ammonia synthesis process having a high-pressure stripper
Inventor: FUDERER ANDRIJA DR ING
IPC: C01C1/04
Filed: 1989-02-18
Abstract: In ammonia synthesis, the gas mixture leaving the reactor usually contains between 15 and 25 mol % of ammonia. This hot gas is preferably first used to generate steam and to heat the circulated gas and after cooling to below 220@C is used for flushing ammonia out of a rich ammonia solution. This flushing is carried out at about synthesis pressure and an ammonia-depleted solution and an enriched gas are obtained, which gas contains more ammonia than the gas leaving the reactor. The enriched gas is cooled and the liquefied ammonia is separated off. The ammonia still remaining in the gas is absorbed in the depleted solution, with a gas containing from 0.3 to 3 mol % of ammonia and a rich solution being obtained. The gas is dried, preheated and recirculated to the synthesis reactor. It is important to the process that the enriched gas is further used for preheating the circulated gas. No refrigeration plant is necessary, and the same amount of high-pressure steam is generated as in the processes for obtaining ammonia refrigeration plants.
Patent DE-3909646-A1 (DE)
Title: Arrangement for sealing off the lateral gaps between a stationary ramp and a crossover bridge mounted pivotably therein
IPC: B65G69/28
Filed: 1989-03-23
Abstract: The invention relates to an arrangement for sealing off the lateral gaps (15, 16) between a stationary ramp (1) and the bridge plate (4) of a crossover bridge mounted pivotably therein. According to the invention, provision is made for there to extend over the length of the respective gap a sealing lip (17, 18) made of elastic material which has a U-shaped profile and which is connected to the ramp (1) or the bridge plate, the free legs (27,28) projecting into the path of movement of the bridge plate (4) or of the ramp. The sealing lips thus seal off the gaps between the bridge plate and the ramp and prevent the possibility of draught air being able to pass through these lateral gaps. <IMAGE>
Patent DE-3913417-A1 (DE)
Inventor: BELTZ DIETMAR DIPL ING
IPC: G06F13/36
Filed: 1989-04-24
Abstract: The invention concerns a procedure and an arrangement for bus assignment to data processing devices for controlling a prioritised bus transfer by the devices in the global bus formed by connecting the single buses. The assignment signal for a device and its stored local data is in the first pulse and identifies individual buses with bus receiving and non bus receiving devices, and the bus request signals from devices to single buses without bus receiving devices are blocked when single buses are changed during bus assignment. In a second pulse period and during single bus change the bus-assigned signals to the single bus with the bus receiving device are switched to inactive and the bus with the device giving up the device is switched to active. All other bus assigned signals are kept active. During a third pulse period the bus-assigned signal on the single bus of the bus receiving device is switched to active and the previous blocking of the request signals is lifted.
Patent DE-3922484-A1 (DE)
Title: Circuit for varying windscreen wiper sweep interval - has pulse-controlled, timing, logic sequence, interval setting switch and data storage facility
Inventor: NORMANN NORBERT DIPL PHYS DR
IPC: B60S1/08
Filed: 1989-07-08
Abstract: A circuit for controlling the internal between successive  sweeps of a windscreen wiper employs a selector switch (5) with 'sweet drive off' and 'internal setting on' positions. A timing circuit comprising a clock pulse generator (2) and impulse counter (7) enables a varible interval to be chosen between a first and second sweep. The chosen interval is then retained in memory (3) for repeat use on delyaed sweep independent of periods of continuousa sweep. An impulse generator (6) covers circuit logic via suitable gates ( 12 to 17 42 51 53). ADVANTAGE - Discriminates reliably between delayed and continuous sweep and maintains preset pause times accorately. Is economic to install, requires no change to auxiliary wiring of vehicle and can be retro=fitted as a plug=in unit in same space as a conventional timing relay. Requires only small caacity for storage and counting modules.
Patent DE-3924800-A1 (DE)
Title: Protection from hazardous ionising earth radiation - by braided screens of matting of rushes and reeds
Inventor: KOPSCHINA ANDREAS
IPC: A61N1/16
Filed: 1989-07-27
Abstract: Geopathologists believe that ionising radiation emitted by the earth can cause diseases and even cancer. It is
Patent DE-3925637-A1 (DE)
Inventor: IWAI NORIYUKI
IPC: B60R1/066
Filed: 1989-08-03
Abstract: A retractable rearview door mirror in which angular adjustment of the mirror member (1) can be effected by manually operating an actuation lever (11). By using a certain linkage mechanism, a favourable correspondence is achieved between the direction of movement of the actuation lever (11) and the direction of movement of the mirror member (1). The use of a clutch unit (37) permits the adjusted state of the mirror member (1) to be preserved, even when the rearview door mirror is retracted and then restored to its operative position, by minimizing the influence of the retracting movement upon the linkage mechanism. This can be accomplished by applying a suitable amount of friction to the linkage mechanism, but, by using a lock lever (5) which fixes the position of the mirror member with respect to the mirror visor when the rearview door mirror is retracted, the angular orientation of the mirror member (1) may be kept fixed without relying on such friction and it allows easy operation of the actuation lever (11), requiring only a small input force to adjust the position of the mirror member (1). <IMAGE>
Patent DE-3941056-A1 (DE)
Title: Metallic bars friction welding to tubular conductor - fusing half into recess in each bar to produce 5 to 10 mm thick contact
Inventor: TIAINEN TUOMO
IPC: H01R43/02
Filed: 1989-12-12
Abstract: A contact piece (17) of tubular section is placed between two bars (12) of e.g. A1MgSi0.5 incorporating a concave recess (16) of corresp. dia. (about 50 mm). The tube (17) is rotated about its longitudinal axis while both bars (12) are pressed against it. The kinetic energy of a flywheel on the spindle driving the tube (17) is converted by friction into heat which fuses the bars (12) together. They are then sepd. with the tube (17) split into two. USE/ADVANTAGE - In mfr. of conductors for electrochemical cleaning of metals. The connection is achieved easily and quickly with economical rise of material.
Patent DE-4006166-A1 (DE)
Title: Separating sheets from stack - using driven removal roller allowed to freewheel when end of sheet is in contact with it
Inventor: KECK ERICH DIPL ING
IPC: B65H3/06
Filed: 1990-02-23
Abstract: A method of separating sheets from a stack (13) involves using a removal roller (16) to detach the sheet (14) to be fed from the stack and to deliver it into the input region (18) of a driven print roller (20). The position of the end region (45) of each sheet to be transported is determined w.r.t. the removal roller. A control signal is generated as soon as the end region is in contact with the roller. The signal deactivates the removal roller drive and the roller is allowed to freewheel. USE/ADVANTAGE - For use with paper sheets, foils, forms and other information carriers. Simple method prevents overlap of succeeding sheets with transported sheet.
Patent DE-4007648-A1 (DE)
Inventor: SCHNUERLE FRIEDHELM DR ING
IPC: F15B9/10
Filed: 1990-03-10
Abstract: A pneumatic or hydraulic piston-cylinder unit, for example the drive of a pneumatic or hydraulic straightening press, has a cylinder (1) containing a piston (3) connected to a press ram (7). The piston (3) divides the cylinder (1) into a return stroke chamber (5) and a propulsive stroke chamber (4). A servo control valve (11) inside the piston (3) is actuated by an adjusting rod (20) and, in function of the piston movement and of the movement of the adjusting rod (20), connects the propulsion chamber (4) to a return line (19) or to the return stroke chamber (5), which is connected permanently to a source of pneumatic or hydraulic pressure. Follow-up control of the piston (3) and the press ram (7) to which it is connected is thereby achieved.
Patent DE-4011320-A1 (DE)
Title: Metal stamping edge processing method - involves coating with paint by electrostatic spraying immediately after stamping operation
IPC: B05D7/14
Filed: 1990-04-07
Abstract: The processing method is for the edges of metal stampings, pressings etc, preferably flat. The edges (2) are coated with paint by electrostatic spraying of the paint in powder form, and immediately after the stamping, pressing or cutting operation. The powder coating can be between 40 and 120 micro metres. thick, and applied in one or successive operations. It can extend for up to 10cm. from the edge. ADVANTAGE - Protects from corrosion, or cutting injuries during subsequent handling.
Patent DE-4012660-A1 (DE)
Title: Spectacle lens edge machining system - uses peripheral edge data for spectacle lens to control final machining
IPC: G05B19/18
Filed: 1990-04-20
Abstract: The machining system uses an initial grinding stage for obtaining the required edge contour, followed by a facette grinding stage. The edge contour data of the lens is entered in a control processor, to allow subsequent control of the longitudinal or radial movement of the machined lens or the grinding disc. After the facette machining stage the edge contour data for the lens is fed to the processor for comparison with stored data representing the required edge contour, to allow the actual edge contour to be corrected. USE - For machining lenses with complex contour.
Patent DE-4024298-A1 (DE)
Title: Device for demolition of concrete - using high pressure liq. (water) jets, and is lightweight and easily transportable
Inventor: HESELBERGER BERND
IPC: B26F3/00
Filed: 1990-07-31
Abstract: Base section (1) comprises rectangular vacuum tank with opening on wide outward facing flanges (12) on the underside.  A flexible rubber skirt is attached to the underside of the flange to form an airtight joint between the ground surface and the tank. The tank contains a sensor which operates a cut out switch connected to the high pressure water source. In the event of the airtight seal not being satisfactory, a Venturi assembly (15) above the tank is connected by means of a supply pipe (17) to an air compressor (not shown) and causes a vacuum to be formed in the tank through an adjoining aperture.  The vacuum serves to clamp the total assembly to the ground during operation. A supporting framework is constructed on the top of the vacuum tank and contains a chain gear assembly, guide rails and 4 idler  pullies. This assembly causes a reciprocation motion to be transmitted to the spraying frame arm (4) and attached high pressure equipment. A flexible high pressure hose (8) is connected to a source of high pressure liq. (not shown). The outlet end connects to a tubular spray pipe (5) connected the spraying frame arm (4).  Beneath the tubular spray pipe is a jet (6) which delivers a high pressure stream of liq. (7) onto the concrete surface (16), causing efficient demolition of the concrete surface.  For safety of the operating personnel the equipment will be remotely controlled. ADVANTAGE - Can be used in vertical surfaces. Is of lightweight construction.
Patent DE-4024493-A1 (DE)
Title: Water tank for fire engine - has trapezium-shaped cross=section with width of floor greater than width of roof
Inventor: ZAWADKE THOMAS DIPL ING
IPC: A62C27/00
Filed: 1990-08-02
Abstract: The tank construction between the road axles of a fire engine is symmetrically formed in relation to the longitudinal central plane of the vehicle (3). It forms part of the vehicle floor. A tank (10) extending in the longitudinal direction of the vehicle has a cross-section in the form of a trapeze such that the tank floor (7) is larger than the covering surface (6). USE/ADVANTAGE - Design of water tank suitable for many types of vehicle which has good driving dynamics whether full or empty.
Patent DE-4025496-A1 (DE)
Title: Front spoiler for caravan - has rigid upper section with flexible lower skirt over drawer
Inventor: STOELZEL SIEGFRIED
IPC: B62D35/00
Filed: 1990-08-11
Abstract: The drag of the caravan is considerably reduced by the spoiler over the drawbar. The upper part of the spoiler has a rigid structure (5) and is linked to the drawbar frame by a flexible skirt (6). Bracing (12) inside the structure provides support for wind deflection etc. The bottom skirt has openings for access to the gas bottle rack and to the nosewheel etc. Openings in the upper section are covered with clear material (8) and enable the riding lights to be visible. ADVANTAGE - Reduction of drag, stable structure, can be fitted to existing caravans.
Patent DE-4031753-A1 (DE)
Title: Video image exposure appts. performing cyclic image shift - in horizontal direction by fraction of raster pattern step from one integration period to the next
Inventor: COCHARD ROLAND
IPC: H04N5/349
Filed: 1990-10-06
Abstract: The subject is imaged by a lens system (1) on to the photosensitive surface of a semiconductor image sensor (2) through an infrared filter (3) and colour filter wheel (4) providing red, green, and blue exposures in sequence. An analogue signal processor (5) is followed by a digitiser (6), multiplexer (7) and memory (8) all controlled from a clock generator (9). Advantageously, horizontal displacement in the path of the beam on to the imager (2) is obtd. from a tilted disc (3). ADVANTAGE - Resoln. enhancement with the semiconductor imager is achieved at min. technical cost without static image displacement due to drift.
Patent DE-4034589-A1 (DE)
Title: Bicycle stand for folding construction - has pivot fitting grips for wheel and folding lateral supports
Inventor: KLINGLER ERNST
IPC: B62H3/06
Filed: 1990-10-31
Abstract: The bicycle stand has a metal frame with two U-profiled brackets (1,2) pivot mounted to swing out and grip the bicycle wheel fore and aft. Lateral support strips (9,10) can be swung outwards to stabilise the stand and to form a low grip for additional bicycles stood each side of the secured machine. The stand can be collapsed into a compact structure for storage.  A central screw fitting (6) enables the stand to be secured into a recessed mounting strip in the ground. ADVANTAGE - Compact fitting, simple storage.
Patent DE-4039680-A1 (DE)
Title: Remotely controlled facsimile transceiver - receives requests via telephone line for list of remote-control commands which it sends to remote transceiver
Inventor: IDE HISASHI
IPC: H04N1/42
Filed: 1990-12-12
Abstract: The facsimile transceiver receives remote control signals via a telephone line from a remote facsimile transceiver.  A memory (6,7) stores data.  A converter (5) converts the memory's data into alphanumeric form in response to a request signal.  A transmitter sends the alphanumeric data as a facsimile signal via the telephone line (4).  This data then appears at the remote facsimile transceiver as a list of remote-control commands which the user can use to contact the remote transceiver. The transmitted data can include telephone numbers.  The transceiver includes a facsimile part (2) and a replay part (1) responding to the said request signal. ADVANTAGE - Can be remote controlled even if user has forgotten command codes for remote control or has no record of these codes.
Patent DE-4107724-A1 (DE)
Title: Servo drive with safety device
Inventor: PANNENBECKER WILHELM
IPC: E05B77/24
Filed: 1991-03-11
Abstract: The servo drive (1) has a servo member, and an axially movable servo rod (8, 9) in a sleeve (5). The rod sections are connected by a coupling, having a radially adjustable coupling part (10). Dependent upon the position of the drive-sided part (8) of the rod, the coupling part positively connects the other part (9) of the rod to the sleeve.     A compression spring (15) e.g. a helical pressure spring, is located between the two parts of the servo rod. One part (9) of the rod has a should (16) and the other one has a recess, for the spring. The coupling part is formed by a slide blcok.
Patent DE-4109503-A1 (DE)
Title: Double protected detonator wire for electric detonator capsule - is embedded in plastics sheath and received in respective channel of safety mantle
Inventor: SOBBE FRIEDRICH-WILHELM
IPC: H01B7/38
Filed: 1991-03-22
Abstract: The detonator wire has a protective plastics sheath (5, 6) in which the detonator wires (3, 4) are embedded in turn protected by a safety mantle (8). The latter has 2 separate channels, each receiving a respective detonator wire (3, 4) with an inner dia. which is greater than that of the protective plastics sheath (5, 6). The 2 channels are joined together by a thin wall (11) which can easily separated, each being located internally with an easy-slide coating. Pref. the detonation wires (3, 4) are also provided with a similar coating. USE - For military applications.
Patent DE-4111264-A1 (DE)
Title: Catalyser for internal combustion engine exhaust gases - has conical body and housing, with binding layer between them
Inventor: KUHN WILHELM DIPL ING
IPC: F01N3/28
Filed: 1991-04-08
Abstract: Catalyser treats exhaust gases from an internal combustion engine. It consists of a body which carries the catalyst material, and a tubular housing which encloses the body. There is a hard binding layer between the body and the housing. The body and the housing are conical for at least part of their length. ADVANTAGE - The conical shape ensures that, on assembly, the body and housing are firmly fixed together by the binding layer. The layer can be solder or an adhesive.
Patent DE-4114811-A1 (DE)
Title: Car door hinge assembly - opens door panel outwards and front edge forward to provide more access space
Inventor: FENGLER WALDEMAR DIPL ING
IPC: E05D15/32
Filed: 1991-05-07
Abstract: The car door (1) hinge mechanism includes an arm which, on the door being opened, lifts the door outwards and forwards during the outward rotational movement. The system provides more access space than a conventionally hung door. The door fits into the door opening so that it is flush with the surrounding bodywork (2). There are two links (3, 4) each with a pivot at each end to form a parallelogram linkage to cause the hinge end of the door to swing well clear of the bodywork. USE/ADVANTAGE - Hinge mechanism on car door lifts door outwards and forwards, allowing use of single large door on either side of vehicle.
Patent DE-4115345-A1 (DE)
Title: Flexible rectangular container for viscous contents - has flexible reinforcement insert with flanges and bridge pieces in which are holes
Inventor: SIEVERS RICHARD
IPC: B65D88/16
Filed: 1991-05-10
Abstract: The flexible, rectangular container for viscous contents is made of plastics fabric and can be transported on a pallet. The container has a flexible, reinforcement insert (1), the flanges of which are parallel to the container sides (6,7) to which they are joined. One bridge piece of the insert is at right angles to the flanges which are equal in length. The bridge piece has several holes in it. At least two bridge pieces divide the interior into three roughly equal compartments (20-22) and are formed by spaced apart superimposed strips. USE/ADVANTAGE - The flexible container is made more stable and more easily filled by incorporating inner compartments with holes in their partitions enabling the contents to flow through more easily.
Patent DE-4118113-A1 (DE)
Title: Reworking/conversion method for horn hook head bolts - bolt is shortened and given space in head, to provide material for square neck
Inventor: STIBBE JOACHIM DR ING
IPC: B23P6/00
Filed: 1991-06-03
Abstract: The method is for simultaneous reworking and conversion of worn hook head bolts, which are used to fasten rails. A standard, long, worn hook head bolt (1), or one no longer required, is reworked, to create a standard shorter bolt, with a reworked square neck (6). For this process, the head (4) and the thread-free part of the shaft (5) are partially heated. A die (3) and a matrix (2) are used, to form a hollow space in the head of the bolt. This provides the material to form the square neck. ADVANTAGE - Finished dimensions are obtained after finishing the forming process, required strength of 121kN is maintained, no removal of excess material is necessary.
Patent DE-4120359-A1 (DE)
Title: Electrochemical cells - have electrode layer of sintered metal bonded to mat with sintered metal (oxide)powder
Inventor: HILDEBRANDT JUERGEN DR ING
IPC: H01M8/02
Filed: 1991-06-20
Abstract: Electochemical cells are prepd. with a number of composite boards from a diaphragm with a porous electrode layer on each side where an electroconducting dividing wall is formed in oxygen which divides the room into a cathode room and an anode room, with an electroconducting mat placed at least between the electrode layer formed in oxygen and the dividing wall. The composite boards (5, 6, 7) are used such that the electrode layer comprises a sintered metal layer, and on positioning the mat in contact with the metal layer, a metal powder or metal oxide powder is coated, where an electroconducting bond to the mat with the metal layer is formed by sintering the metal powder in a non-oxidising atmos. and the metal oxide powder in a reductive atmos. at a temp. below the recrystallisation temp. of the sintered metal layer. USE/ADVANTAGE -Flawless conduction is obtd. at reduced cost. Useful as electrolysis cells and fuel cells (claimed).