baber/WOPTO huggingface dataset:
Patent DE-4106054-A1 (DE)
Title: DC power supply circuitry for electrically powered vehicles - has thyristor rectifier and switching stages coupled to distributed sections of overhead conductor
Inventor: GERLACH HORST DR ING
IPC: H02M7/757
Filed: 1991-02-22
Abstract: Power is supplied to an electrically operated wheeled vehicle (20) by an overhead conductor (23, 25). The conductor is supplied by the a.c. mains (2) via a d.c. rectifier system based upon thyristor bridge (1) circuits each of which connects with a switching unit connecting (3-5) with sections of the power conductor. The switching units have a current converter (12) with an inductance (6) and feedback via diodes (14, 17). A switching element (29) depends upon the current level. The conductor is coupled back to the supply via a coupling stage (24). ADVANTAGE - Power collecting conductor sections are coupled with peak loading optimised.
Patent DE-4108073-A1 (DE)
Title: Strong bonding of copper@ to polymer - uses copper@ pretreated by surface oxidn., redn. using formaldehyde soln. and then re-oxidn. by baking
Inventor: CHEN CHUNG CHIEN
IPC: H05K3/46
Filed: 1991-03-13
Abstract: Bonding of Cu to a polymer is effected by (i) forming an oxide layer on the Cu by oxidising it; (ii) reducing this oxide layer to metallic Cu using a well-stirred redn. soln. of controlled concn. and temp., the redn. time being controlled so as to give a morphological change; (iii) forming an oxide layer on the metallic Cu by heating or baking; and (iv) heat-pressing the polymer with the baked Cu oxide surface. The redn. soln. pref. contains 2-30 wt.% HCHO, 1-20% alkali (pref. NaOH or KOH) soln. and 0.1-15% of an alcohol (ROH) or organic carboxylic acid (R.COOH) stabiliser with R = 1-4C alkyl, Ph or a deriv. of these. USE/ADVANTAGE - Printed switches can be made, the process allowing the use of formaldehyde in the redn. soln. and the formation of 'laminate hollows' and 'rose rings' being prevented so as to give a strong bond
Patent DE-4109824-A1 (DE)
Title: Curve-controlled power compensation gear - is for arc acceleration system, having swing device with movement path via one turn of single revolution shaft
Inventor: HEFFTLER VICTOR DR ING
IPC: B41F21/05
Filed: 1991-03-26
Abstract: The swinger (1) is connected to a control gear driven by a control curve (4) on a drive shaft and a drive gearwheel (8). In the drive gearwheel are arranged four roller levers (9) displaced 90 deg., and which engage on a common power  compensation curve (12). The contour of the power  compensation curve (11) is determined by a movement concept through comprising two equal successive part movement sinusoids.  Two adjacent roller levers (9.1,9.2;9.3,9.4) are connected by centrally symmetrical gear stages comprising teeth segments (13.1;13.2;17.1;17.2) with a transmission ratio of i =  -1. The roller levers (9) are all fitted with compensation masses (21). USE/ADVANTAGE - As a curve-controlled power compensation gear for printing machines which requires reduced space, and ensures a good printing quality.
Patent DE-4113473-A1 (DE)
Title: Plug-and-socket electric connector with annular spring - is held together by engagement of section of spring in annular groove preventing dislodgement by vibration
Inventor: PAWLOWSKI ADAM DR
IPC: H01R13/627
Filed: 1991-04-25
Abstract: A pref. coaxial connector is constituted by a plug having an annular groove in the outer conductor and a socket with an annular recess into which the spring (20) is fitted. The ends (21,22) of the spring (20) are joined by a bow (23) having a central section (24) of shorter radius (R2) and paraxial longitudinal slots (25). The central section (24) is snapped into the groove to prevent disconnection except by deliberate outwardly directed force sufficient to overcome the pressure of the spring (20). ADVANTAGE - Easily mfd. connector safeguarded in simplest possible manner against unintentional sepn.
Patent DE-4116456-A1 (DE)
Title: Insect cleaning system for vehicle windscreens and headlights - uses windscreen wiper with at least one blade rotatable about its axis that of wiper arm or imaginary axis in parallel
Inventor: SCHMIDT NORBERT
IPC: B60S1/34
Filed: 1991-05-19
Abstract: The rotation of the windscreen wiper blade is carried out so that the wiper blade is located at the wiper arm, permitting rottion, or the wiper blade is arranged at a wiper arm, rotatable about its longitudinal axis. The rotation of the wiper blade or the wiper arm is carried out by means of a servo motor (9) or lifting magnet or lever. The rotation of the wiper blade cna be carried out by remote control, e.g. from inside the vehicle. It can be carried out by means of a computer, an electrical or electronic circuit or mechanically. One wiper rubber (14) only makes contact with the screen surface (13) when cleaning with pure water. With the switching on of the insect cleaning operation the wiper blade/tube of the insect cleaning element (15) is rotated so that all three cleaning elements namely two wiper rubbers (14) and the brush (15) lie on the screen. USE/ADVANTAGE - Suitable for selective normal cleaning and/or removing crushed insects from windscreen. Avoids wearing of screen due to continuous use in normal cleaning mode.
Patent DE-4118026-A1 (DE)
Title: Quadruple fire prevention installation esp. for private car - is powered by independent battery supplying magnetic valves for fuel diversion and release of incombustible liq.
Inventor: STELZL MANFRED
IPC: A62C3/07
Filed: 1991-06-01
Abstract: In the event of a collision the device prevents escape into the engine compartment of liq. fuel, which is diverted by one magnetic valve (10) into a container (3) under vacuum, while fire-extinguishing liq. is supplied from two reservoirs (1,2) to 12 nozzles (a-1) directed at critical areas. Two valves (10) are opened by an inertia switch (4), and one reservoir (2) can be emptied by a manual switch (7) or a temp. sensor (6) in the engine compartment. ADVANTAGE - Device having one manual and three automatic operations does not depend on assistance from other motorists in emergency.
Patent DE-4123158-A1 (DE)
Title: Mfg. conductive layer array - etches masking layer to form number of etched masking layer sections at preset intermediate spacing
Inventor: SHIROTA RIICHIRO
IPC: H01L27/115
Filed: 1991-07-12
Abstract: Between the array conductive layers (14a, 18a) is a controlled distance. A conductive layer (14, 18) is fitted with a mask layer (20) on or over a substrate. The mask layer is etched to form a number of etched mask layer sections (20a, 20b) with a specified spacing. A second number of etched mask layer sections (24a-c) is formed, alternating the first number of sections with a second spacing. The second spacing is smaller than the first one. Then the conductive layer is etched, using the two mask layer sections, to form a series of conductive layer sections aligned within the second spacing, or fitted in the latter. USE/ADVANTAGE - For integrated semiconductor circuits, EEPROMs, etc., with improved, controlled spacing in an array.
Patent DE-4124632-A1 (DE)
Title: Holding grip for car roof - consists of two plastics shapes clipped together,each with centre and fastening portions
Inventor: ZIPPERLE MICHAEL
IPC: B60N3/02
Filed: 1991-07-25
Abstract: The grip is attached to a car roof and consists of two plastics parts (1,2) joined together by a clip connection.Each part consists of a central section (3, 4) and an individual fastening arm (5, 6). The first central part (3) completely encloses the second central part (4). The fastening arm may have an arrester lug engaging an arresting recess. USE/ADVANTAGE - Comfortable car accessory,with improved  mfr.and assembly.
Patent DE-4130648-A1 (DE)
Title: Air conditioning plant for buildings - has housing near discharge channel outlet, with airborne particle filter and sorption filter, acting as sound absorber
Inventor: DETZER RUEDIGER DR
IPC: F24F8/125
Filed: 1991-09-14
Abstract: The air conditioning plant has a central appliance (1) for room air processing, a blower (2) to transport the processed air in the area of the central appliance, through a feed channel (3), and a discharge channel (4) with air outlet (5) into the room (6) to be conditioned. A filter (7) is located near the end of the discharge channel, and the processed air flows through it. The device contains an airborne particle filter (8) and a sorption filter (9). It is also constructed to act as sound absorber and/or sound damper, with the filters fitted to act as sound absorber/damper elements. ADVANTAGE - Improved cleaning/processing of air, reduced noise.
Patent DE-4136742-A1 (DE)
Title: Lamellar crystals of metal di:boride or di:metal penta:boride - produced by gas or liq. phase reaction and are useful e.g. for reinforcing metal or ceramic matrix
Inventor: TELLE RAINER DR
IPC: C30B9/00
Filed: 1991-11-08
Abstract: Crystalline particles (I) of the AlB2 and W2B5 type are lamellar and have a ratio thickness to max. dia. of 1:(3-3000). (I) have a thickness of 0.1-20, pref. 0.1-1 microns, dia. of 3-80, pref. 5-10 microns and thickness/dia. ratio of 1:(4-800), pref. 1:(5-200), esp. up to 1:100. (I) are prepd. (claimed) by gas or liq. phase reaction of the boride-forming elements or the corresp. carbides with B or B4C in stoichiometric ratio, pref. in the present of a Si, Cu or Fe melt. Growth in one crystallographic direction is blocked, pref. with seed inhibitors, esp. Si, Al, Mn Fe, Co and/or Ni, in amts. of 5 vol.%, pref. under 1 vol.% w.r.t. the vol. of the boride to be inhibited. USE/ADVANTAGE - (I) include mix crystals of Ti, Cr, Zr, V, Nb, Ta, W and/or Mo borides of the AlB2 type, esp. CrB2/WB2, TiB2/CrB2, TiB2/VB2, TiB2/ZrB2, TiB2/WB2 and TiB2/CrB2/WB2, and also W2B5, Mo2B5 and mix crystals contg. other transition elements such as Ti, e.g. (W,Ti)2B5 contg. up to 10 wt.% Ti w.r.t. W. (I) are esp. useful for reinforcing metallic or ceramic matrices, e.g. for making ceramic cutting tools, for machining metals, building materials, wood and plastics, for producing wear-resistant pts. subject to abrasion, erosion and corrosion, for pts. subject to high temp. cycles, e.g. composites based in SiC, for engine components, high strength pts. for static loads at high temps. and pts. for high electrical and thermal conductivity, esp. at high temp., e.g. as electrodes for melt electrolysis.
Patent DE-4137050-A1 (DE)
Title: Concealed hinge meeting hygiene requirements for doors to clean rooms - has rotary axis in hollow space of door frame with door position adjustable in both X and Y axes and hinge bracket dust, gas and fluid-tight
IPC: E05D5/06
Filed: 1991-11-11
Abstract: The hinge comprises a hinge bracket (1), a retainer(4) for accommodation of bearing bushes (3) a rotary shaft (5), a frame seal (2) and a door-side counter piece (8,9). The hinge bracket (1) is firstly pushed through the frame seal (2) so that the smaller seal dia. locates in the correct position in the corresp. hinge aperture. Then, the bearing bushes, a rotary shaft, and hinge bracket are fitted. The rotary shaft is so held in its position by screws (6) that the shaft ends are flush with the retainer outer surface. The counter piece comprising flat material (8) with a bolt (9) is inserted from the rear through the opening of the door profile so that the bolt extends outwards through the provided hole in the front side of the door profile (12). USE/ADVANTAGE - For clean rooms, preserving the correct sealing situation with a concealed door hinge.
Patent DE-4138635-A1 (DE)
Title: Determining water demand in program-controlled washing machine - by initially letting in water until specified upper limit has been reached
Inventor: STEINMUELLER HARALD DIPL ING
IPC: D06F39/00
Filed: 1991-11-25
Abstract: A process for determining water demand in a program-controlled washing machine, which features a water supply system regulated according to the water level, involves letting in washing or rinsing water until a specified upper limit has been reached in the laundry drum. This triggers off the reversing process for the drum. A tacho generator is used to register the oscillating movements of the drum executed until the lower level has been reached. Out of this number of movements, the process involves extracting switch impulses for the appropriate additional opening of the water supply. ADVANTAGE - The process provides for a reliable determining of the required final volume of water while taking into account the absorbancy of the washing.
Patent DE-4141610-A1 (DE)
Title: Reverse motion preventing latch for manual labelling machine - has small pitch spacing ratchet teeth to provide accurate location of feed wheel.
Inventor: BECKER WERNER
IPC: B65C11/00
Filed: 1991-12-17
Abstract: The manual labelling machine has a carrier band (15) supported from a roll,with the band carrying labels to be printed. Built into the unit is a print head (5), that operates relative to an ink roller. The unit is lever (1) operated to move the head to a printing surface (9), that the band passes across. The labels (18) separate as the band passes around guide pin. an incrementing mechanism is in the form of a main ratchet (24.25) Incremental line movement is provided by a wheel with sprung smaller teeth and a second ratchet arm. USE/ADVANTAGE - For labelling machine motion control,with reliable function and easy drive.
Patent DE-4200135-A1 (DE)
Title: New polymeric sulpho:betaine cpds. - useful as active agents, antistatic agents and surfactants
Inventor: BALLSCHUH DETLEF DR
IPC: C08F26/02
Filed: 1992-01-01
Abstract: Polymeric sulphobetaines (I) comprising units of formula (II)-(XI) are new. Where R1 = a gp. of formula (XII): R2 and R3 = H, benzyl, 1-20C alkyl or alkylcarbamoylmethyl; n = 10-100,000; a and b = 1-99. (I) are prepd. by (a) reacting a polymer contg. primary or sec. amino gps. with a 3-allylsulphonylmethyl-4- sulphomethyl-pyrrolidinium betaine of formula (XIII), or (b) reacting an unsatd. primary or sec. amine with (XIII) and polymerising the prod. in an aq. medium. USE - (I) are useful as 'active agents' (no details given), antistatic agents and surfactants.
Patent DE-4202058-A1 (DE)
Title: Scraper conveyor for underground mining - has entrainment means formed by foundation bodies extending over side scrapers
Inventor: WIECHERS KLAUS PETER
IPC: B65G19/22
Filed: 1992-01-25
Abstract: The bases (4) have a central recess (6) for holding the mutually spaced draw rod heads (8). The rod heads and the recesses have corresponding partially spherically shaped faces which allow a mutual horizontal vertical movement. The bases can have stepped recesses (11, 12) for holding the scrapers which form side extensions of the entrainment members. The scrapers are detachably inserted in these stepped recesses by screw connections. These scraper elements can have tongues which partially cover the central recess. ADVANTAGE - The scraper elements can be easily replaced when worn or for transport purposes.
Patent DE-4209698-A1 (DE)
Title: Three-roll sheet metal bending machine for tubes - has top roll with ejector cylinder and piston in axial bore on drive side
Inventor: STEINER RICHARD
IPC: B21D5/14
Filed: 1992-03-25
Abstract: The three-roll machine is for e.g. bending sheet metal into tubes with different diameters. It has a planetary gear on the drive side, a hinged bearing on the opposite side, two bottom rolls, and a removable top roll. The top roller (1) has an ejector cylinder (7) with piston (8) in an axial bore (11) on the drive side. The piston is charged with hydraulic pressure via a transverse bore (17). The planetary gear (3) has a pressure plate (18) to support the piston, while moving the top roll outwards. There are at least two support- and feeder rolls, located between top- and bottom rolls, and with a diameter adjusted to that of the top roll. ADVANTAGE - Top roll is axially pushed out of bearing, without using a crane.
Patent DE-4222529-A1 (DE)
Title: Non-contact running filament monitor - has two spaced sensors and evaluation unit to eliminate ambient interference
Inventor: ILSE REINHARD
IPC: B65H63/032
Filed: 1992-07-09
Abstract: The appts. to monitor a running yarn or filament, without contact, has two sensors with a gap of 4-20 mm between them. Pref. the two sensors are parallel to each other, or they are in succession. USE/ADVANTAGE - The assembly is for monitoring high speed mfg. processes where the yarn or filament material is drawn at speeds of more than 1000 m/min. The system can establish and evaluate a number of signals from the environment around the moving material, and eliminate the interference factors. It can be used for a rapid change of guide systems.
Patent DE-4226372-A1 (DE)
Title: Photographic bleach bath with suppressed iron hydroxide pptn. - contg. biodegradable iron complex of amino-, imino- or nitrilo-carboxylic acid and biodegradable free hydroxy-carboxylic acid
Inventor: TAPPE GUSTAV
IPC: G03C7/42
Filed: 1992-08-10
Abstract: Bleach bath contains (I) an Fe-III complex salt (I) of an amino-, imino- or nitrilo-carboxylic acid of the formula NR1R2R3 (II) (where R1 = carboxy-(1-10C)-alkyl; and R2 and R3 = H, (1-10C)-(hydroxy)alkyl or carboxy-(1-10C)-(hydroxy)alkyl) and (2) a hydroxycarboxylic acid (III). (III) is pref. of formula (IIIA): where R1 and R2 = H or OH; R3 and R4 = H, OH or COOH; 1, n and m = 0 or 1 but not all = 0. In particular, (III) is tartaric acid (IIIA) or citric acid (IIIB). The bath contains an excess of 5-20 mole-% free (III). USE/ADVANTAGE - The bath is suitable for processing colour photographic Ag halide material, e.g. negative and reversal film and paper. (II) and (III) are readily biodegradable and addn. of (III) suppresses pptn. of Fe(OH)3 in washing baths, without the cost of adding more than a 5-20 mole-% excess chelating agent.
Patent DE-4226887-A1 (DE)
Title: Hydraulic plate rolling mill with elastically-deformed friction clamp - uses fluid pressure to improve thickness control, opening speed, and gap setting, and opt. short-stroke cylinder for gap reduction and tilt
Inventor: INOUE TETSUO
IPC: B21B31/02
Filed: 1992-08-13
Abstract: Design and operation of a rolling mill. The mill consists of lower and upper (121) housings, carrying the respective rolls, four connecting columns (120) on which one of the housings is slidable, and on each of which is a friction clamp (125) to lock the housing. The clamp (125) preferably consists of a bush (133) surrounding the column (120) and which is elastically deformable by hydraulic pressure (132) to clamp onto the column. A piston (134) formed on the column pref. operates in a double-acting hydraulic cylinder (126) in the housing (121) to raise (135,138) and lower (136,139) the latter. On the lower end of the clamp (125) is pref. a load sensor (127) and a piston (128), which operates in a large-area, short-stroke hydraulic cylinder (124) in the housing. USE/ADVANTAGE - Mill for hot and cold rolling plates and foils in which the roll-gap is progressively reduced with successive passes. Hydraulic opening and closing shortens time between successive plates and for roll-changing and improves gap setting. Friction clamp improves control of roll-gap by eliminating effect of fluid compressibility, i.e. avoids decrease of roll-constant. Short-stroke embodiment permits roll-gap reduction and roll tilting without releasing clamp from column.
Patent DE-4230244-A1 (DE)
Title: Shoe blanks with toe, heel and ankle parts - are separately treated on last and joined together afterwards
Inventor: LEGLEITNER THOMAS
IPC: A43D3/02
Filed: 1992-09-10
Abstract: A moulding (13) of solid or machinable material which has a clamping surface (19) matching the joint face (7) of the last being clamped. The moulding is positioned in the treatment machine so that, when the last part is being treated near the joint face, the moulding and last part are treated. The force with which the last part is tightened on the moulding is applied by a pull strap (12) protruding through the moulding into a recess (9) of the last part and joined to it. USE/ADVANTAGE - The last parts used in shoe mfr. need no extra treatment, and have an ankle part tightened by an easily machinable moulding as pull strap.
Patent DE-4235878-A1 (DE)
Title: Pendulum support for rail vehicle - has piston and cylinder unit with curved contact surface
Inventor: HOELZL STEFAN
IPC: B61F5/14
Filed: 1992-10-23
Abstract: The pendulum suspension system has a sprung support body in which the lower end (2) of the support (1) is supported on a surface (11) of the component (10). The end surface (15) of the lower end and/or the surface (11) is or are formed as a spherical surface. The upper end (4) of the support is fixed by a joint (5) to the piston (6) of the cylinder (7). The cover surface (12) of the lower end or its counter surface (13) on the component (10) is a rotational surface with two or more curves, while the other surface (12 or 13) is a straight circular cylindrical surface. USE/ADVANTAGE - Pendulum suspension for rail vehicle with the costs of prodn. and wear reduced to a min.
Patent DE-4236618-A1 (DE)
Title: False alarm prevention device for infrared movement detector - has processor which generates alarm control signal only with occurrence of signal from external light sensor, when path of electrical signals from infrared detector deviates from preset course
Inventor: SCHNAITHMANN MARTIN DIPL ING
IPC: H05B37/02
Filed: 1992-10-29
Abstract: The false alarm prevention device has a processor (4) with a light sensor (5) for detecting foreign light. The processor only generates a control signal (s) when the electrical signals of the infrared detector (1) changes from a predetermined pattern. The change corresponds to the change in the foreign light. The processor stores the predetermined pattern of the infrared detector electrical signals. The electrical signal of the infrared detector is converted into a digital signal using an A-D converter (3). The converter operates using successive approximation. The processor is a microcontroller (9), and is connected to a bus system with bus protocol control. ADVANTAGE - Uses simplest possible circuitry, without optical filter and corresponding mechanical components. Can be used with any infrared detector.
Patent DE-4239388-A1 (DE)
Title: Book or brochure binding system - includes equipment for transport and handling of adhesive tape
Inventor: DOMES HELMUT DR
IPC: B42C9/00
Filed: 1992-11-24
Abstract: The equipment may be used for binding loose sheets in books or brochures. It moves bands covered on one side with heat-softening adhesive to a further transport device. The bands (1c,1d) are held on two separate reels (1a,1b) and pass over guidance and tensioning rollers (2a,3a) and (2b,3b) and then pass between guidance plates (4a,4b) and optical band sensors (7a,7b) and (7c,7d). The bands move through further guides and come together and pass over a roller (9), pass an optical sensor (10a,10b) and cutting shears (12) to a transport device (14). USE/ADVANTAGE - Simple supply of adhesive tape to book binding equipment.
Patent DE-4239395-A1 (DE)
Title: Open solar-heat collector - has airtight housing connected to atmosphere by pressure and vacuum valves to equalise pressure
Inventor: SPRINGER REINER DIPL ING
IPC: F24J2/46
Filed: 1992-11-24
Abstract: The housing for the solar heat collector contains a coated absorber under a translucent cover plate and can be ventilated by the ambient air. It is airtight and vacuum (7) and pressure (6) valves connect the interior (2) to atmosphere for pressure equalisation. The pressure valve can be at the bottom (8) and the valves can be in a common horizontal plane. Each valve can comprise a spring-loaded flap. USE/ADVANTAGE - Open solar-heat collector reduces moisture intake and consequent impairment of operating efficiency.