baber/WOPTO huggingface dataset:
Patent DE-3926350-A1 (DE)
Title: Mfg. piezoelectric composite plate - heating support and piezoceramic layer separately up to adhesive layer attaining adhesive temp.
Inventor: BOEHME WOLFGANG DIPL PHYS
IPC: H01L41/39
Filed: 1989-08-09
Abstract: The piezoelectric composite plate consists of a support plate with adhered piezoelectric ceramic plate with surface electrodes on either side. The support and piezoelectric plates are separately heated up to the adhesive temp. such that their thermal expansion is identical. On reaching the adhesive temp. both plates are pressed together, clamped in a holder, and cooled down together. Pref. the ceramic plate with a lower thermal expansion coefft. is heated to a higher temp. and the support plate, a foil, with the higher thermal expansion coefft. is heated during the mechanical compression. USE/ADVANTAGE - For electro-acoustic transducers etc., without deformation prior to, during, or after adhering.
Patent DE-3926600-A1 (DE)
Title: Stiff lightweight roller - has inner spiral plate giving coils within inner tube
Inventor: STRACH LOTHAR
IPC: D21F5/02
Filed: 1989-08-11
Abstract: The lightweight hollow roller or cylinder with a high stiffness, as a heated roller for papermaking or as a calender deflection or heating roller, has a coiled plate fixed within the inner tube running in a spiral, with axially parallel plate pieces between the coil plate to give a sandwich construction. A second tube is fixed to the outer dia. of the coil plate. ADVANTAGE - The roller has a high resistance torque, thin walls, low weight and high denting stiffness.
Patent DE-3930613-A1 (DE)
Title: Connector for vehicle tyre snow chains - has lock for chain free end formed with lateral gap, to allow chain to be fed sideways into lock
Inventor: OTTINGER GEORG
IPC: B60C27/10
Filed: 1989-09-13
Abstract: The connector (22) is for chains under tension, esp. vehicle tyre snow chains. It has a lock (46,50) to fix and release two chain sections. The lock has a chain passage (between 46 and 50) facing the chain tensioning direction. A lateral gap (40) in the lock housing (26,28,36) allows the chain free end to be fed sideways into the passage prior to tensioning. USE/ADVANTAGE - The connector for vehicle snow chains is simpler to use and easier to release when iced up.
Patent DE-3931032-A1 (DE)
Inventor: GLEIM GUENTER DIPL ING
IPC: H04N3/233
Filed: 1989-09-16
Abstract: In order to evaluate and to correct deflection raster parameters, it is known to reproduce a grid pattern (SH, SV) on the picture area (1). In order to ensure an automatic evaluation and determination of the correction values of each parameter, a flat part (2) provided with photoelectric sensors (3) can be superimposed on the picture area (1). The total voltage (UH, UV) of the sensor rows (6, 7) is automatically set at maximal value by modifying each parameter. The device is particularly useful for correcting convergence in projection television sets having large projection surfaces.
Patent DE-3939711-A1 (DE)
Inventor: SCHMITT EDGAR ING GRAD
IPC: B60T8/40
Filed: 1989-12-01
Abstract: The proposal is for a braking system with anti-lock and anti-skid control, with a main brake cylinder (2) actuated by the braking pressure applied by a brake pedal (1) and a flanged servo brake (3), in which one or more additional pump components (17, 18) are fitted to the return pump (9) in the brake circuit which are connected via a suction line (19) to a brake fluid reservoir (20) and via a pressure line (21) to a pressure store (23), so that the servo brake (3) is supplied with brake fluid under pressure via the pressure store (23). The use of the existing pump motor (10) of the return pump (9) to pressurise the hydraulic servo brake (3) via additional return pump components (17, 18) obviates the need for an additional motor to supply the servo brake (3) with pressurised brake fluid.
Patent DE-3941091-A1 (DE)
Title: Power station - has air and water decomposition for oxygen gas to reduce formation of nitrogen oxide(s)
Inventor: MITSCHEL HELMUT DIPL ING
IPC: F01K13/00
Filed: 1989-12-13
Abstract: To burn the fuel in a power station, where the fuel burns with a gas containing oxygen for the steam generator, the gas with the oxygen content is formed with the help of an air and/or water decomposition assembly, and then fed to the steamer. Under low electricity demand conditions, at least part of the gas formed with an oxygen content is passed to an intermediate storage. ADVANTAGE - The method reduces the formation of nitrogen oxides from nitrogen in the air.
Patent DE-4000991-A1 (DE)
Title: Flexible endless welding wire for cladding steel surfaces - has iron wire core covered with powdered extruded layer of metal carbide, iron, manganese, silicon, nickel and molybdenum
Inventor: FINDEISEN EBERHARD
IPC: B23K35/32
Filed: 1990-01-16
Abstract: Flexible continuous welding wire for build-up welding on surfaces of unalloyed or low alloy steels comprises an Fe core wire of diameter 0.5-2 mm, pref. 0.8-1.6 mm surrounded by a covering of 30-72 wt.% metal carbide, 8-40 Fe; 0.01-5 Mn; 0.01-4 Si; 0-10 Ni; 0-3 Mo. The covering is in the form of a powder of size 0.001-2.0 mm which is extruded onto the core to produce a diameter of upto 12 mm. USE/ADVANTAGE - Surface protecting steels with armour plating layer. As a continuous wire is used, the welding process does not have to be interrupted thereby causing temperature fluctuations which result in local surface defects.
Patent DE-4005004-A1 (DE)
Title: Increasing durability of linings, esp. converter linings - by spraying molten slag heel over lining
Inventor: HOLZHEY MANFRED
IPC: F27D1/16
Filed: 1990-02-19
Abstract: The durability of metallurgical refractory linings is increased by (a) adding magnesitic, dolomitic or calcareous materials, to molten slag remaining in the converter after tapping, depending on the requisite slag consistency; (b) pivoting the converter to mix the materials into the slag; and (c) spraying the slag in the converter in its tilted position by means of a conventional taphole closure device. USE/ADVANTAGE - The process is used to treat linings of furnaces.
Patent DE-4005976-A1 (DE)
Inventor: KAMMEYER KARL-DIRK DR
IPC: H04B1/16
Filed: 1990-02-26
Abstract: A car radio with a digital equalizer in the IF stage is described, with which distortions of the received signal can be eliminated through multipath reception. <IMAGE>
Patent DE-4016028-A1 (DE)
Title: Prefab. building with vaulted roof - is constructed from elements each of which forms half arch
Inventor: GUERICKE ROLF DR ING
IPC: E04B1/32
Filed: 1990-05-18
Abstract: The structural elements (1) can be assembled to produce a single storey building of any required size.  Each element (1) has an L-shaped horizontal cross-section  which increases in size from the floor upwards. The outer edge (5) of each flange is curved to form a half arch. Four such elements can be assembled to form a self-supporting structure. This structure consists of two intersecting archways running at right angles to each other. A number of such structures can be joined together to form a building with a vaulted roof. USE - Prefab building with vaulted roof.
Patent DE-4016403-A1 (DE)
Title: Recycling box for waste layers of material - is used for paper, and guides along sides and base for tying up contents
Inventor: CZYPULOWSKI KURT
IPC: B65B27/08
Filed: 1990-05-22
Abstract: The cecycling box (1, 2, 3) for collecting layers of material enables these to be tied up and removed as a packet. The sides and base of the container have eyelets, arms, grooves etc. along where the cord runs for packing up the material. A cord is pulled along these guides so that the material tied up can be lifted out of the box.
Patent DE-4017147-A1 (DE)
Title: Suction belt feed unit for printing machine - has roller with suction tube to grip leading edge of sheet and effect slow down for transfer
Inventor: JUNKER JENS
IPC: B65H5/22
Filed: 1990-05-28
Abstract: A high speed handling system for use in the stacking of cut sheets has a small suction belt unit (8) positioned ahead of the stack. Sheets are transferred by a main belt that has grippers at intervals. Each gripper holds a sheet. When near the stack entrance, the gripper is opened and the sheet falls onto the suction belt. The belt has a series of holes (13) that engage with projecting tubes (14) from a roller (9). Suction is applied through the tubes to grip the sheet and so retard the motion for accurate transfer onto the stack. ADVANTAGE - Accurate transfer onto sheet stack.
Patent DE-4021867-A1 (DE)
Title: Composting waste material microbially with passage of air - with control to yield max. amt. of carbon di:oxide per unit of time
IPC: C05F17/00
Filed: 1990-07-09
Abstract: In composting waste material, where the material is put into a container and degraded microbially, with passage of air, the rotting process is carried out or controlled so as to yield the max. amt. of CO2/unit of time. Pref. a closed container is used, and the material is not turned over. The amt. of CO2 in the waste air is measured. The amt. of air/unit of time is adjusted so that the CO2 content rises, and is reduced when the CO2 content rises, or is raised when the CO2 content exceeds an upper limiting value. The amt.  of air/unit of time is regulated so that the CO2 content lies as close as possible to an upper limit, and also so that the amt. of heat/unit of time in the rotting material is a max., and so that the consumption of O2/unit of time in the rotting material is a max.. ADVANTAGE - The process is as rapid and intensive as possible.
Patent DE-4025619-A1 (DE)
Title: Line setter for ink droplet printer - has cantilever heating resistance in each nozzle chamber with electronic heating controller
Inventor: BREIMESSER FRITZ
IPC: B41J2/14
Filed: 1990-08-13
Abstract: A print line for an ink droplet printer has ink feed channels, at least one nozzle chamber (40) with an ink outlet nozzle, ink heating and bubble generation devices and an electronic heating controller. The electrical heating has at least one cantilever mounted heating resistance (50) surrounded by ink in each nozzle chamber. The print line has a cover plate (10) and a nozzle plate (20) which can both be made of semiconducting material e.g. silicon. USE/ADVANTAGE- Print line is improved to ensure that ink heating power is generated practically without losses.
Patent DE-4028411-A1 (DE)
Title: Hybrid propulsion drive for weapon barrel -  uses arc discharge convertingpropulsion fluid into low molecular weight propulsion gas
Inventor: ZWINGEL DIETER DR RER NAT
IPC: F41B6/00
Filed: 1990-09-07
Abstract: The hybrid propulsion drive for a weapon barrel incorporates regenerative injection of a propulsion fluid via at least one axially displaced piston (7). An electrical discharge path (3) is provided between 2 electrodes (4, 5) used for vaporising the propulsion fluid for converting it into a propulsion gas of low molecular weight. Pref. the gas press. resulting from the vaporisation of the propulsion fluid is used to control the injection process via a differential piston (7). ADVANTAGE - Increased initial velocity of launched projectile.
Patent DE-4029513-A1 (DE)
Title: Thermostatic space heater with coil around water tube - can be operated independently at times when main central heating installation and pump are not operative
Inventor: BERGER SIEGBERT DIPL ING DR
IPC: F24H9/20
Filed: 1990-09-18
Abstract: Water is circulated through a radiator panel (2) with vertical tubes (6) linking upper and lower horizontal tu tubes (4,5) with connections (14,15) to the ends of a through-flow tubular heater (9) surrounded over most of its length by the coil (10). Heating current is supplied through a cable (17) from a mains plug and time switch (21).  A controller (18) can be set to a selected heating level by means of a hand wheel (19).  The appts. can be run in isolation with low heat losses during transitional periods. ADVANTAGE - Long-term operational reliability is guaranteed without risk of scaling.
Patent DE-4030627-A1 (DE)
Title: Window with set of louvres - has frame side members formed by insulating ribs between profiled metal sections
IPC: E06B7/084
Filed: 1990-09-27
Abstract: The louvred window has a rectangular frame with top and bottom cross-members and two side members comprising outer and inner profiled metal sections (24, 26) joined together by heat-insulating ribs (28, 30). The louvres are mounted in holders (22), each with a bearing trunnion (62) turning in a side member. Each of the latter has a recess in the side towards the holders accommodating a strip type seal (42). A thrust rod (52) sliding in one side member is coupled to the holders so as to turn the louvers (20). The edges of the side-member side-walls towards the holders are formed by the profiled metal sections, and the middle portions by one of the insulating ribs.
Patent DE-4040330-A1 (DE)
Inventor: RAUE REIMUND
IPC: F16D23/06
Filed: 1990-12-17
Abstract: In a clutch (12, 13) with a synchronising device, post-synchronisation is attained when the engagement of the locking teeth (24, 25, 26) with the shift teeth (17, 18) changes in that some of the locking teeth (25, 26) on the synchronising ring are broader than the others and touch oblique surfaces (22, 23) on the shift teeth (17, 18) of a sleeve later than those of the narrower locking teeth (24).
Patent DE-4040805-A1 (DE)
Title: Pump extracting ground water - has pressure sensor near water inlet linked to control mechanism
Inventor: PFEIFER MICHAEL
IPC: E21B7/20
Filed: 1990-12-14
Abstract: The end section is for a vacuum pump for extraction of ground water. Water is drained from the soil by using a known physical relationship of water and air flows. A pressure sensor (11) is located at the base of the pipe bundle and is linked to a control mechanism governing the main extraction pipe (9) at the head of the bundle. A ball valve (5) and cage (6) protect the end of the vacuum tube. USE/ADVANTAGE - Balancing pressure and control on extraction pipe optimise water removal for various soil conditions.
Patent DE-4103761-A1 (DE)
Title: Electronic wind instrument exchangeable between different formats - has mouthpiece at body end provided with blowing pressure sensor and electronic components providing digital signals dependent upon mouthpiece and key mechanical influence
Inventor: HENTZE JUERGEN
IPC: G10H1/34
Filed: 1991-02-08
Abstract: A device is incorporated in the instrument for its electrical connection to a tone prodn. unit. The keys (43-46) on the upper and/or the under side of the body (12) of the instrument are fitted in an assembly (52) which is exchangeably held on the body, the assembly being a push-in unit which can be arrested in the body. The push-in unit has an electrical conductor plate on its inside. The keys are arranged in at least two parallel rows (41,42), the one row (41) contg. three valve keys (43-45), and a tritone key (46), whilst the other row (42) contains two tone hold keys (43,44), a free function key (45), and a programme change key (46). Alternatively, the upper side of the instrument can have at least two parallel rows of pref. at least six or eight keys, such rows contg. six note keys. The one row additionally has two function keys, and the other row has a two triller keys. ADVANTAGE - An electronic wind instrument with exchangeable key combinations, allowing it to be used as a trumpet, saxophone, clarinet or flute.
Patent DE-4104477-A1 (DE)
Title: Pressure dependent measurement value generator e.g. for washing machine water level - has displacement sensor and controlled counter pressure generator coupled to membrane
Inventor: LOEWEL HELMUT ING GRAD
IPC: G01L11/00
Filed: 1991-02-14
Abstract: The arrangement for generating a pressure dependent measurement signal has a displacement sensor (9) coupled to a surface or membrane (1) deflected according to the press. of a gaseous or liquid medium. The displacement sensor generates a control signal when the surface is deflected. A control element (5) opposing the surface deflection is coupled to a counter pressure generator (6, 7). The displacement sensor signal is connected to the input of a controller (8) which causes a compensating pressure to be generated. The control parameter or a derivative thereof is a measure of the pressure of the medium on the membrane. USE/ADVANTAGE - E.g. for continuously and accurately determining level of water in washing machine using simple arrangement and independently of manufacturing tolerances.
Patent DE-4104615-A1 (DE)
Inventor: LANGE WERNER
IPC: D21D5/16
Filed: 1991-02-15
Abstract: The invention relates to a screen drum which, along an outer cylinder surface, has screen bars which extend parallel to the centre axis of the cylinder and between them form the screen slots and which are held by support rings, extending in the peripheral direction of the outer cylinder surface at a mutual axial distance, in open-rim recesses thereof. The invention is characterised in that the screen bars have, in the radial direction (V) of the screen drum, relative to the direction of viewing, side surfaces of which at least one is inclined to the radial (V) at an angle, that a conicity of between 14 and 35 DEG  results between the two side surfaces, to which at least largely corresponding side surfaces of the recesses of the support rings correspond, so that, after the deforming of support rods of corresponding length into the support rings, clamping of the screen bars in the support rings is established at these points, and that at least one of the side surfaces of the screen bars has at least one projection or a recess, the recesses or projections of the support rings corresponding in each case conversely to re-entrant or projection. <IMAGE>
Patent DE-4106945-A1 (DE)
Title: Elastic shaft coupling - uses wound mixed yarns to give high stretch to break with low thermal shrinkage
Inventor: KANEKO ATSUSHI
IPC: F16D3/78
Filed: 1991-03-05
Abstract: the elastic shaft coupling for power transmission between driving and driven shafts, such as for propellers and ship screws, has clamps round the alternating drive sleeves embedded with the sleeves in a rubber or other elastic component, where each clamp is formed by twisted yarn or yarns (11) with a high stretch to break, twisted together with a yarn or yarns (12) of low thermal shrinkage to give a mixed yarn structure. The mixt yarn is of polyamide and/or polyester yarn or yarns to give the high stretch to break, together with a yarn or yarns of aromatic polyamide for the low thermal shrinkage.  The ratio of the wound coils of polyamide and/or polyester yarns to the number of wound coils of the single yarn of aromatic polyamide is 1:0.7 to 1:2. ADVANTAGE - The system gives high strength and low thermal shrinkage for long life, with the flexibility to accept bending forces.
Patent DE-4109118-A1 (DE)
Title: Automatic evaluating appts. for sample components esp. of water or sewage - uses chemical sensors with code ranges covering measurement values to be registered and read out for evaluation
Inventor: BERSSEN JOHANNES
IPC: G01N35/00
Filed: 1991-03-20
Abstract: The sample contents are presented to at least one sensor (1) having a coding range (8) for information concerning the measurement values to be covered. A read-out unit is used to evaluate the coding range. A monitoring arrangement (4) is connected to both the read-out unit (3) and the measuring equipment (5, 6, 7). The monitoring arrangement adapts the latter to the measurement values to be registered on the basis of the results from the read-out unit. The measuring equipment comprises a monochromator (5), a photo-element (6) and an amplifier (7) to create a photometer. The sensor can be a circular curvette contg. a selective reagent for a certain parameter. The coding range can be a label with printed information, a bar code strip or a magnetic strip. USE/ADVANTAGE - Monitoring cleanliness of public water supply and industrial waste water. Rapid, exact, easy and not unpleasant to use.
Patent DE-4112660-A1 (DE)
Title: Vibration conveyor with conveyor rail - has soft material rib like conveyor tracks in rail base for smooth conveyance
Inventor: DIETZEL WERNER
IPC: B65G27/04
Filed: 1991-04-18
Abstract: The vibration conveyor has a conveyor rail or the like with an associated vibratory drive. One or more rib-like conveyor belts (7,7') of predominantly soft material such as plastics or rubber and running parallel to each other are provided on the conveyor base (4) of the conveyor rail (2) in the conveyor direction for the support of the parts (9) which are to be moved. Longitudinal grooves (5,5') can be provided in the conveyor base whereby a cord (8) of plastics or rubber projecting over the conveyor base can be placed in the grooves. USE/ADVANTAGE - Vibration conveyor gives smooth transportation of workpieces or parts.
Patent DE-4113512-A1 (DE)
Title: Freeze drying and powdering food prods. - by withdrawing cooling medium e.g. carbon di:oxide, from crystallising chamber and compressing, liquefying and recirculating to the chamber
Inventor: GROLITSCH ERHARD DIPL ING
IPC: A23L2/14
Filed: 1991-04-25
Abstract: In an improved spray-freezing and drying procedure, the cooling medium is withdrawn (3) from the crystallisation chamber (1), and is then compressed (5), cooled (6) and liquefied before being recirculated (4) to the crystallisation chamber. The cooling medium is pref. introduced via nozzles (2) directly into the crystallisation chamber, and is filtered (7) after being withdrawn from this chamber. Carbon dioxide is the pref. cooling medium and is introduced into the chamber via atomising nozzles. Alternatively, the cooling medium may be used to cool the chamber indirectly, in which case a refrigerant such as frigen, freon, R 502 etc. is used and is circulated in a closed cooling circuit. USE/ADVANTAGE - Used in the freeze-drying especially of food products. The economy of the procedure is improved, and losses of food properties such as taste and aroma are reduced.
Patent DE-4115313-A1 (DE)
Title: Reduced size compact filter for harmful aerosols and gases - has active carbon filter bed compressed by springs with several filter stages arranged in series
Inventor: GERIGK SYLVIA
IPC: A62B23/04
Filed: 1991-05-10
Abstract: Several inlet apertures are arranged in the outer face wall edge (S1) of the filter, which are positioned in front of a suspended material filter plane (A). The number of apertures is such that the free inlet surface remains the same or greater than the single hole inlet aperture (LE). A further reduction of the inner air resistance is additionally possible if the space freed by the removal of the earlier used guide chamber is used for extension of the filter bed. This produces an enlargement of the filter bed and a redn. of the flow speed. Spring elements are fitted on the inside of the filter face wall, and are subject to pressure from a screw and pressure spring. This causes a shrinkage of the active carbon bed (K), and free space formation between the bed and the cylinder face sides or between the active carbon bed and the dividing walls (T) is prevented. USE/ADVANTAGE - To protect persons in mobile and stationary locations against intake of harmful aerosols and gases.
Patent DE-4115377-A1 (DE)
Title: Drum counter with integral alignment for mileometer - uses sprung tooth mechanism to locate wheels in alignment
Inventor: ORTELLI BRUNO
IPC: G06M1/26
Filed: 1991-05-10
Abstract: Eacgh wheel of the drum (22) contains an internal cylindrical protrusion (30) which is crowned with teeth (32). The other side of the wheel also contains a cylinder with at least two teeth.  The wheels are held together with a spring allowing relative rotation of the wheels but ensuring the wheels settle in a position where the numbers on the outer rim are aligned. ADVANTAGE - Better display of numbers in mileometers, etc.