baber/WOPTO huggingface dataset:
Patent DE-3930737-A1 (DE)
Title: Paper transport mechanism for printers - has pressure roller with shaft movably mounted and coupled to fixed roller shaft via toothed wheel and pinion
Inventor: ROSENTHAL MANFRED
IPC: B41J13/03
Filed: 1989-09-14
Abstract: A paper transport mechanism for printers has a motor-driven, rigidly mounted roller arrangement with a pressure roller arrange-ment held against it by spring arms (7) and having a toothed wheel (13) on its shaft (6) coupled to fixed roller shaft (3). The pressure roller shaft is mounted in laterally guiding bearing yokes (10,11) in the pressure arrangement so as to be movable on both sides. The toothed wheel on the movable shaft engages a pinion on the fixed shaft. USE/ADVANTAGE - Pref. for use with continuous stationary. Paper transport mechanism simplified.
Patent DE-3934775-A1 (DE)
Inventor: FORTMANN ROBERT C
IPC: A47J27/16
Filed: 1989-10-18
Abstract: A food treating/holding apparatus has a cabinet (12) defining a storage space (14) for food to be treated, a heater (28) with a surface that can be heated above the boiling temperature of water, and structure (32) for delivering a plurality of preselected amounts of water against the heater surface according to the length of time a cabinet door is opened, to produce water vapour in the storage space (14). <IMAGE>
Patent DE-3941306-A1 (DE)
Title: Inductive barrier detecting e.g. revolution rates - has core held in saturation by magnet until conducting part is introduced into air gap
Inventor: GROHS PAUL DIPL ING DR
IPC: G01D5/20
Filed: 1989-12-14
Abstract: An inductive device for detecting mechanical processes consists of a core (1) with a magnetic circuit contg. an air gap, a permanent magnet (3) and a coil (2). The core remains in saturation as a result of premagnetisation by the magnet until a magnetically conducting part (5) is introduced into the air gap. This causes the core to revert from the saturated to the permeable state. The weakly magnetic parts of the magnetic circuit are of ferrite. USE/ADVANTAGE - E.g. for detecting a range of revolution rates of machines down to zero rate, esp. in anti-lock braking systems or detecting e.d.c. for ignition regulation systems.
Patent DE-3941994-A1 (DE)
Title: Powder for cleaning sanitary ware - contg. acetic acid as inclusion cpd. held in crystal lattice of water sol. carrier salt
Inventor: MENKE RONALD
IPC: C11D3/10
Filed: 1989-12-20
Abstract: A powdery compsn. for cleaning sanitary ware contains acetic acid as an inclusion cpd. held in the crystal lattice of a water-sol. carrier salt. The carrier salt is Na formate, NH4 acetate, or an alkali(ne earth) acetate, pref. Na acetate, in molar ratio of acetic acid:Na acetate of 1.2:1-1:1.2. The compsn. may contain a water-sol. carbonate or H carbonate, esp. not more than 25 (1-20) wt. % of an alkali and/or NH4 carbonate and/or H carbonate. It may contain no more than 50 (0.05-5) wt. % of an anionic and/or nonionic surfactant, no more than 40 (0.9-16) wt. % of powdery acid(s), not more than 85 (not more than 30) wt. % of cellulose powder with particle size 0.005-0.6mm, and not more than 50 (5-30) wt. % of a polishing agent. ADVANTAGE - The compsn. is a free-flowing, low-odour, stable powder, liberating on contact with water or on rubbing a slight acetic smell, which does not affect the perfume of the compsn. When the carrier salt is Na acetate, dissolution in water gives a buffered system. The compsn. removes toilet stains, eg., lime deposits, rust, and water and urinary calculus.
Patent DE-4001037-A1 (DE)
Title: Friction wheel gear with drive wheel - has compression spring driven shaft and two V-cam holders
Inventor: KROLO MIRKO
IPC: F16H15/14
Filed: 1990-01-16
Abstract: The friction wheel gear has a drive wheel (17) against which is held a friction wheel by a compression spring (23). The friction wheel (16) is connected to a driven shaft (13) by an inclined face coupling with two interacting cam supports. One of the V-cam holders (19) is mounted on an inner end section (13.1) of the driven shaft (13) so that it can move axially in relation to the other V-cam holder. The second cam holder is connected to the friction wheel (16). The compression spring is pre-tensioned on the inner end section (13.1) of the drivenshaft between the longitudinally movable cam holder (19) and an annular collar (24) on the driven shaft (13). USE/ADVANTAGE - The coupling is made of easily made, compact parts and gives no play even with wear on the friction wheel and coupling parts.
Patent DE-4002522-A1 (DE)
Title: Sum and difference unit for radar group antenna - has single structure with eight sections arranged in quadrants
Inventor: MASCHEN RAINER DR ING
IPC: H01Q25/02
Filed: 1990-01-29
Abstract: The single unit to formed to provide a group antenna with electronically phase controlled emissions for radar scanning. The unit is subdivided into eight partial volumes, e.g. octants, that have three common axes. The signals generated (SV1-SV8) by each octant are subjected to sum and difference processing to generate an elevation difference signal, a total signal, and two azimuth difference signals. The implementation of the structure is provided by eleven elements (H1-H11) that are each produced as magnetic tees. ADVANTAGE - Simple, low weight unit.
Patent DE-4014906-A1 (DE)
Title: Vacuum switch chamber for HV switch - has current bolt enclosed by high magnetic permeability elements
Inventor: SLAMECKA ERNST PROF DR TECHN
IPC: H01H33/664
Filed: 1990-05-07
Abstract: The vacuum switch chamber has a fixed contact piece (4) and a relatively displaced contact piece (5) arranged coaxially, each provided with high magnetic permeability elements, at least one of which extends beyond the evacuated space of the switch chamber. The elements (23, 25) associated with the axially movable switch piece (5) loosely surround the current bolt (8). The latter elements (23, 25) are held by a support structure (20) with a sleeve (21), with a conductive body (40) coupled electrically to the current bolt (8), to allow relative movement. A switch rod (45) provides the mechanical coupling between the current bolt (8) and the switch operating drive. ADVANTAGE - Reduced current losses.
Patent DE-4015529-A1 (DE)
Title: Rolling shutter with plastic slats - rolls up transparent slats through wide entry slit in housing and on to its shaft which is fitted with sleeves to increase its radius
Inventor: WILLE RUDOLF
IPC: E06B9/173
Filed: 1990-05-15
Abstract: A rolling shutter to protect glass has parallel moving bars of transparent material, pref. of plastics such as acrylic, wound round a shaft inside a housing. This shaft has at least two separate coaxial parts of greater but equal o.d. so as to have increased radius, and at least one of its bars/slats is attached there at the shaft end. More specifically the shutter consists of the slats (12) which are attached to each other but so that they can move relative to each other to a certain extent. They are held on to the shaft (14) on which they can be rolled up. The shaft is inside the housing (16) which has a slit (20) of width to accomodate the slats and running parallel to the shaft. The shaft (14) has sleeves (26) fitted on as two halves for ease of application and these halves are glued together and to the shaft. Strips (28) connect the slats system (10) to the shaft sleeves (26). Rollers (30) guide the slats through the slit (20). ADVANTAGE - Although the construction uses plastic bars/slats it is easily rolled up or unrolled. Their surfaces suffer little or no effect from their movements; this is particularly important where the slats have coatings to reflect or impede light.
Patent DE-4015685-A1 (DE)
Title: Wrist watch with hands indicating more than correct time - has multifunctional control for indicating seconds, months, days, year etc. without overloading dial
Inventor: SCHICKEDANZ WILLI DIPL ING
IPC: G04B19/22
Filed: 1990-05-16
Abstract: An operating arrangement (14) is mounted on the case of the wristwatch. This arrangement can assume two different and definite spatial positions. A first range, e.g. hours, is assigned to the first position and a second time range, e.g. days of the month, is assigned to the second.  One or more hands (18,20,21,22,23,24,25,26,27) show the line range set by the operating arrangement. One hand can indicate a first figure or group while another indicates a second figure or groups belonging to the time range indicated by the first. The operating arrangement can be a knurling wheel at the side of the watch case which can be brought into various positions. ADVANTAGE - Clear indication of various time ranges, including, e.g. times in other lands, without overloading dial or requiring magnifying glass to read, e.g. date.
Patent DE-4017872-A1 (DE)
Title: Hydraulic braking system with antilock and wheel-slip controls
Inventor: KAES GUENTER
IPC: F02D29/02
Filed: 1990-06-02
Abstract: The supply line (55) connecting the precharging pump (54) to the return pump (41) passes through a two/two-way charging valve (56). The two pumps (54, 41) are driven by a common motor (46) but in antilock mode are prevented from exchanging fluid. In the antislip mode during phases when braking pressure is maintained and released, the supply to the continuously operated return pump (41) is interrupted, until the pressure control valves (31) operate.
Patent DE-4017898-A1 (DE)
Title: Optical scanner for rotary or linear pulse generator - has shutter mask with separate channels with mutual phase shift
Inventor: HEDDERGOTT HARRY DIPL ING
IPC: H03M1/30
Filed: 1990-06-02
Abstract: The measuring scale of a pulse generator is optically scanned via shutter mask. Separate and mutually phase shifted channels are fitted in the latter. The adjacent channel pairse are each phase shifted by the same rate. The digital reception signals, obtained by scanning of the zero passage, are again mutually phase shifted by a given, uniform rate. The pairs of the digital output signals are logically EXOR interlinked. Pref. the mask contains four channels, with the phase shift between the channels obtained mechanically by their geometric arrangement, or spacing. Further channels may be provided for improved interference protection, inverted w.r.t. the first channels. ADVANTAGE - High resolution in low-cost circuit.
Patent DE-4018736-A1 (DE)
Title: Aspiration catheter removing blockage from blood vessel - has nozzles at end of suction tube to direct water jets rearwards
Inventor: RAU WIGBERT S PROF DR MED
IPC: A61B17/22
Filed: 1990-06-12
Abstract: The aspiration catheter is for removing blockages in blood vessels and other internal organs. It has a suction tube (18) with the tube wall (2) on one side of the catheter being of increased thickness to enable a longitudinal hole (17) to be formed in it. This longitudinal hole (17) is connected to a circular tube (23) fitted to the end of the suction tube (18). This circular tube (23) has a number of small holes which direct jets of high pressure water into the suction tube in the rearward direction. These jets increase the suction effect in the manner of a jet pump and so assist in the removal of the blockage. USE - Removal of blockages in blood vessels.
Patent DE-4019240-A1 (DE)
Title: Mill for grinding malted barley in beer prodn. - controls quality of milled grain by regulating grain flow into mill to keep power consumption of mill motor constant
IPC: B02C25/00
Filed: 1990-06-15
Abstract: A control device is provided for the inlet feed system to the mill rolls, and regulates the inlet flow of grain so as to keep the power consumed by the motor driving the mill rolls to a constant value. USE/ADVANTAGE - This invention is used in mills for grinding malted barley in the manufacture of beer, and especially in wet grinding of the malt. The mill is controlled so that the milled product is of uniform high quality in spite of continuously varying malt characteristics.
Patent DE-4020232-A1 (DE)
Inventor: FRIEDHARD JOHANNES
IPC: A01B69/02
Filed: 1990-06-26
Abstract: Seeder with a supply container and metering members which feed the seed located in the supply container in adjustable quantities to sowing elements which deposit this seed in the ground in rows, the seed supplied to specific sowing elements being disconnectable in periodic recurrence at intervals corresponding to a multiple of the working width of the seeder by means of seed-supply interrupting elements to be actuated via a switching device, so as to produce marking strips which are provided for the travel of the running wheels of vehicles for subsequent plant-protection and fertilising measures. In order to obtain a consolidation of the corridor strips in a simple way so as to reduce the danger of water erosion in the corridors, a clear marking of these corridor strips being guaranteed at the same time, during the laying of the marking strips (8) the seed-supply interrupting elements (13, 14, 18) are actuated continuously at intervals via the switching device (16). <IMAGE>
Patent DE-4020235-A1 (DE)
Title: Rubber or plastic flipper - has articulated flipper and shoe portions
Inventor: KETTERER KLAUS DIPL ING
IPC: A63B31/11
Filed: 1990-06-26
Abstract: A novel flipper has a shoe portion (2) with a rigid sole (5) articulated to a flipper portion (3) which engages in the shoe portion. ADVANTAGE - The rubber or plastic flipper is designed to allow swimming or diving with the flipper portion attached or walking or running with the flipper portion detached or retracted.
Patent DE-4020455-A1 (DE)
Inventor: MARSCHNER MICHAEL DR
IPC: C08G18/66
Filed: 1990-06-27
Abstract: The invention concerns aqueous polyurethane dispersions containing, as the polyol component in the solid polyurethane, epoxidized fatty-acid esters ring-opened with carboxylic acids, a process for producing the dispersions and their use in the dressing of leather.
Patent DE-4023308-A1 (DE)
Inventor: HUEBSCH WALTER DR
IPC: A61K31/535
Filed: 1990-07-21
Abstract: Substituted pyrido-oxazines can be prepared by reduction of the corresponding ketones. They are useful active compounds in medicaments, in particular for the treatment of hyperlipoproteinaemia, lipoproteinaemia and arteriosclerosis.
Patent DE-4023371-A1 (DE)
Title: Hand brake for bicycle - involves one or two levers combined with handle bar grips
Inventor: STEPPON ERNST-WILFRIED
IPC: B62L3/02
Filed: 1990-07-23
Abstract: On the handlebar (11) of e.g. a so-called mountain bike, a brake lever (12) is formed as a handle bar grip, and is rotatably fitted on the bar (11). A rotary axis (13) of the brake lever and an axis (14) of the handlebar are coaxial. - The brake lever is T-shaped, and on the handlebar is an intermediate piece, fitted non-rotatably. On this intermediate piece supports a Bowden (RTM) draw sleeve (16). The brake section of the Bowden cable (17) is fixed to the brake lever (12). A counter bearing is fitted in the intermediate piece (15) for the Bowden draw sleeve, and a hole in the handlebar grip accommodates a brake cable nipple.
Patent DE-4030995-A1 (DE)
Title: Laser-diode for fast data transmission with servo output - uses photodiode to monitor and set threshold and modulator currents
Inventor: WISCHER NORBERT DIPL ING
IPC: H01S5/0683
Filed: 1990-10-01
Abstract: A laser diode (3) is held at its extinction threshold with a bias current generator (5). A photodiode (2) monitors the laser output. The AC component is filtered out (1) and the DC component compared with a reference level (7) in a regulator (4) to maintain the bias current at the threshold level. Further compensation is introduced by comparing the regulator output with a second reference (10) and taking the difference (8) to set the modulator current (9) which is added to the bias current at the modulator switch (6). ADVANTAGE - Allows extinction threshold to be held over wider ranges of ambient-temp. and modulation frequency.
Patent DE-4031221-A1 (DE)
Title: Additional spring device for bicycle saddle -  can be easily attached to saddle of existing bicycle
Inventor: GRIESEL HEINRICH
IPC: B62J1/26
Filed: 1990-10-04
Abstract: An additional spring device for the saddle of a bicycle, is in the form of a spring cushion which can be easily fitted by the bicycle owner to the saddle of an existing bicycle. Alternatively the spring cushion may be incorporated in the saddle during manufacture to form an integrated unit. - The spring cushion is formed from a number of compression or tension springs or from rubber, or plastic, or plastic foam or from a combination of these materials. The spring cushion is enclosed in a covering of natural of synthetic leather, or plastic, or textile.
Patent DE-4031842-A1 (DE)
Title: Lock for motor vehicle door - can be operated from inside or outside of vehicle and incorporates antitheft device
Inventor: SEIPEL ARNOLD
IPC: E05B83/36
Filed: 1990-10-08
Abstract: The motor vehicle door is provided with a lock which can be actuated by an outside lever (22) or by means of an inside lever which is connected to the actuating lever (62). These levers (22,62) act on a third lever (61) which moves the lock bolt in or out of its locking position. The third lever (61) is held in the locking position by a bolt (52) actuated by an electro-magnet (8). The third lever (61) has an attached pin (43) which abuts against the end of the fourth lever (41) and so prevents the opening of the lock. The fourth lever (41) forms part of a delay mechanism which prevents the opening of the lock until the locking element (31) is fully disengaged from its locking position and so forms an anti-theft device. USE/ADVANTAGE - Lock for motor vehicle door with antitheft mechanism.
Patent DE-4032068-A1 (DE)
Inventor: SZECHENY KALMAN DIPL ING
IPC: H04B3/32
Filed: 1990-10-10
Abstract: The receive line (EL1) of a receiving circuit (E1) is connected to a reference line (RL1) via a converter (U11) and a subtraction section (SI). If then a pulse disturbance occurs, this ideally happens at the same time in both lines, the pulse disturbance being supplied to the receive line (EL1) from the reference line (RL1) via the converter (U11) and the subtraction input of the subtraction section (SI) and compensating the pulse disturbance present in the receive line (EL1). The two lines (RL1, EL1) are advantageously carried in a star-quad arrangement in the transmission cable. An unoccupied dummy line can be used as reference line (RL1). In the simplest case, the converter (U11) consists of a normal junction line but preferably exhibits an adaptive filter for simulating the pulse disturbance. If a transmit line is used as reference line, the transmit signal must be additionally compensated for. The circuit arrangement (KS) is connected to a receiving circuit (E1) of a line terminating device of a communication system. The circuit arrangement has the advantage that the source of the pulse disturbance can be unknown. <IMAGE>
Patent DE-4032328-A1 (DE)
Inventor: LIEDKE VOLKER
IPC: B23K1/20
Filed: 1990-10-11
Abstract: A method of processing members to be joined by soldering, preferably of printed circuit boards equipped with electrical components, and a device for carrying out this method are disclosed, the members to be joined being subjected to a plasma treatment before the soldering operation. The members to be joined can alternatively be subjected to the plasma treatment separately or in the relative position required for the soldering operation. 
<IMAGE>
Patent DE-4032404-A1 (DE)
Inventor: BERGMANN KONRAD DR
IPC: E03C1/23
Filed: 1990-10-12
Abstract: The manufacture of a drain fitting for sinks, washbasins, bathtubs or such sanitary equipment with a drain insert (12) secured in a drain hole (11) in which a plunger (16) consisting of a guide and a plunger head as the plug for the drain hole (11) can be moved longitudinally via a plunger rod (18), whereby the upper edge region of the drain insert (12) forms a sealing collar (19) for the plunger head (15) in its closed position and the upper edge region (14) of the drain insert (12) forming a seat is inserted deeply into the wall of the drain hole (11) of the sanitary equipment, is to be simplified. To this end, a fixed disc (25) with a smaller diameter can be inserted into the drain hole (11) and the drain insert of a standard drain fitting with a larger diameter than the plunger head (15) is inserted in the wall of the drain hole (11) at such a distance from the disc (15) that the plunger head (15) is movable between its closed and open positions beneath the fixed disc (25).
Patent DE-4035675-A1 (DE)
Inventor: HASE BRIGITTE DR
IPC: C08G59/50
Filed: 1990-11-09
Abstract: The novel thermosetting masses contain polyepoxides and cyclic polyimino ethers as reactive components and possibly a catalyst and other auxiliary agents and additives. The cyclic polyimino ethers are substances of general formula (I) in which A is an aliphatic, aromatic or araliphatic group with 4 to 40 C atoms and n represents free valencies for different C atoms, x is a value between 0 and 40, n is one of the values 2, 3 or 4, Z is a direct bond or the CR<5>R<6> group, the radicals R<1> to R<6> are independently H, alkyl or aryl with up to 8 C atoms, R<7> is selected from the hydrogen, methyl and ethyl group and Q is a phenylene group which may be substituted by 1 or 2 methyl groups or the -CHR-M- group, where R is selected from the H, alkyl or alkenyl group and M is selected from the alkylene, alkenylene, arylene and alkarylene group, and the molecular parts R and M independently have 0 to 12 atoms and may be substituted by an alkoxy group with 1 to 3 C atoms. The masses can be hot polymerized to produce high quality mouldings, coatings, and adhesives.
Patent DE-4041182-A1 (DE)
Title: Method for reducing effect of flow and resonance noise - works during combustion operation of heating boiler, with sound waves picked up by receiver and reduced to half wavelength
Inventor: HENRICH HOLGER DIPL ING
IPC: F23M20/00
Filed: 1990-12-21
Abstract: The produced sound waves are picked up by a receiver, and those of the same type are reduced by half a wavelength and emitted by a sender, whereby the produced and emitted sound waves are superimposed, cancelling each other out. USE - To reduce flow and resonance noise during the combustion operation of a heating boiler.
Patent DE-4041554-A1 (DE)
Title: Measuring sedimentation kinetics of blood cells, etc. - using centrifuge with continuous photometric recording system
Inventor: KOMANNS ARIBERT DR
IPC: G01N15/05
Filed: 1990-12-22
Abstract: Sedimentation kinetics of blood cells, haemagglutinates or antigen-antibody complexes are measured by (a) pipetting the test sample and reagents into separate chambers of a thermostatted cuvette-rotor system, (b) combing the sample and reagents under centrifugal force, (c) mixing the sample and reagents by means of mechanical or ultrasonic vibration, and (d) recording the sedimentation-induced increase in light transmission or decrease in light reflection simultaneously in all the measuring chambers under continuous centrifugation by means of stepwise radial photometer, reflectometers or line diodes ('Zeilendioden') or by means of a radially mobile photometer or reflectometer.
Patent DE-4100558-A1 (DE)
Title: Hand-lever-operated spray pump - has inlet and outlet valves with piston working in conjunction with cylinder
Inventor: THOMANN GUENTER
IPC: B05B11/00
Filed: 1991-01-10
Abstract: The spray pump (1) incorporates a lever-type operating hand grip (2), and the pump cylinder (5) is movable against the virtually stationary piston (6) to effect the pumping process. An outlet valve (8) is incorporated for interplay between the pump piston and an outlet nozzle (13, 19). On the outlet nozzle and a nozzle insert (13, 19) conical surfaces are formed in the same direction, opening towards the outlet nozzle. To open the outlet valve (8) the piston (6) is movable towards the outlet nozzle (13). On the hand grip section (10) is integrated a return spring, and a suction pipe is provided, firmly connected to the pump cylinder (5). USE - For hand-controlled spraying operations.