baber/WOPTO huggingface dataset:
Patent DE-3821896-A1 (DE)
Title: Pulverulent metal-containing material and process therefor
Inventor: STEINE HANS-THEO
IPC: C22C33/02
Filed: 1988-06-29
Abstract: A process for producing protective layers on pipes for preheaters and economisers, used at a temperature below 400@C, in large boiler installations, and materials suitable for these should be able to be used for extending the service life of used pipes and for improving the corrosion resistance and the erosion resistance on new pipes. It has been found that thermally sprayed layers, with the use of pulverulent materials - above all of a non-spherical form - based on Ni, Fe and/or Co alloys which contain the elements Cr and/or Mo in a range from 0% to 35% of Cr and/or 0% to 25% of Mo and also a proportion of Al and/or Ti, leads to good results in the service lives; the materials allow a higher energy absorption of the particle during the passage through the flame. The application of the material - in the preferred grain size distribution between 37  mu m and 150 mu m - is advantageously carried out by means of an autogenic flame-spraying implement or a plasma-spraying implement.
Patent DE-3822683-A1 (DE)
Title: Roller blind for closures of openings
Inventor: JANSSEN ANDRE
IPC: E05D1/04
Filed: 1988-07-05
Abstract: The hitherto known roller blinds for closures of openings comprise individual non-transparent roller-blind bars and are therefore not suitable for display windows and, in a residential room with the roller blind let down, give the impression of a prison. In order, even when the roller blind is let down, to be able see through or to permit incidence of light from the outside towards the inside and/or from the inside towards the outside, the invention proposes a transparent roller-blind bar, the individual roller-blind bars being connected to one another via coupling bars which guarantee the necessary strength.
Patent DE-3825223-A1 (DE)
Title: Installation for separating a mixture of sand, water and impurities
Inventor: NIEL JOHANN
IPC: B03B5/40
Filed: 1988-07-25
Abstract: Installation for separating a mixture of sand, water and impurities lighter than sand, having a vibrating sorter having at least one feed funnel for charging the vibrating sorter, a light-material overflow and a heavy-material outlet on the vibrating sorter and a vibrating drive for directed linear vibrations. The mixture is delivered to the feed funnel in the form of a feed suspension. The vibrating sorter has a vibrating box which has the light-material overflow at one end face and a heavy-material discharge, which is raised with respect to the light-material overflow, at the opposite end face, there being arranged, between the light-material overflow and the heavy-material discharge, a vibrating-box bottom which forms a trough in the side view. Arranged in the region of the lowest point of the trough is a buffer which forms a vibrating-box zone and leaves a passage gap free towards the vibrating-box bottom and separates the vibrating box into a jigging zone extending towards the light-material overflow and a rewashing and dewatering zone extending towards the heavy-material discharge. <IMAGE>
Patent DE-3830897-A1 (DE)
Title: Apparatus for a plastics canister
Inventor: SCHIEMANN WOLFRAM DIPL ING DR
IPC: B29C49/48
Filed: 1988-09-10
Abstract: Two-chamber canisters in particular serve the purpose of allowing the operating agents required for operating a power chain saw, oil and petrol, to be expediently taken along to the place where the saw is used in the forest. For necessary service work, a multi-purpose tool is also required. So that such a tool is ready to hand at the place of use, but otherwise is not a hindrance, moulded on the plastics canister on both sides of the parting plane 22 are claw-like projections 23, 24, 26, 27, which are offset in pairs opposite one another. The shank 31 of a multi-purpose tool can be clipped in between these projections and so has a place specially for it. <IMAGE>
Patent DE-3833925-A1 (DE)
Inventor: SEIFERT HORST S H PROF DR
IPC: C12N7/02
Filed: 1988-10-05
Abstract: Viruses or viral antigens are obtained by culturing animal cells in a nutrient medium suspension. The animal cells are cultured in a first bioreactor (A) under continuous addition of nutrient medium in suspension. When a given cell concentration is reached, the cell suspension is transferred to a second bioreactor (B) where it is used as the nutrient medium for culturing the virus under continuous addition of a conservation medium. When a given quantity of virus is produced, the cells and cell residues are continuously separated from the virus-containing nutrient medium suspension in a first filtration arrangement and the residue is discarded. The virus or viral antigen and nutrient medium suspension in the filtrate are continuously separated in a second filtration arrangement. The virus or viral antigen are concentrated and the nutrient medium is discarded.
Patent DE-3835559-A1 (DE)
Title: Jet regulator
IPC: E03C1/08
Filed: 1988-10-19
Abstract: A jet regulator for a sanitary outflow fitting exhibits, in the throughflow direction, a front-attachment screen (6), a jet-dividing device (7) and, downstream, regulating screens (8). The combination of the installation parts used in each case achieves, with comparatively low outlay, a particularly good result in terms of jet dividing, protection against calcification and noise development. Provided for this purpose are at least two regulating screens (8), of which at least the outlet-side regulating screen is designed, with comparatively coarse meshes, with an internal mesh width of at least 0.8 mm. In order that said regulating screens are sufficient for subsequent regulation, particularly intensive jet dividing takes place in the case of the jet-dividing device (7), as a result of the special design thereof. Even the somewhat more finely meshed front-attachment screen (6) effects a steadying of the flow, and natural vibrations are also avoided by the support of said screen. This design in the case of the front-attachment screen (6) and the oblique deflecting surface (12) present in the case of the jet-dividing device (7) achieve a low degree of noise development. <IMAGE>
Patent DE-3836625-A1 (DE)
Title: Control device
IPC: H02P25/04
Filed: 1988-10-27
Abstract: Control device for switching on and off the lighting means of a windowless room and a fan by means of a manually actuable actuating member. The control device also has rotational speed-adjusting means for setting different rotational speeds of the motor of the fan.
Patent DE-3904616-A1 (DE)
Title: Arrangement for providing bearing for at least one suspended pedal lever
Inventor: OTTO HEINZ DIPL ING
IPC: B60R21/09
Filed: 1989-02-16
Abstract: The new arrangement for providing bearing for at least one suspended pedal lever on the cross wall or splashboard of the front part of a passenger car is intended to prevent the pedal lever or levers being pushed into the passenger compartment in a dangerous manner in the event of the vehicle experiencing a head-on collision. For this purpose, a transversely extending, essentially torsionally rigid mounting carrier is arranged at a passenger compartment-side distance from the section of the cross wall which bears a bearing block of the said pedal levers approximately at the same level as the said bearing block, which mounting carrier maintains its spatial position even in the event of a head-on collision by virtue of its attachment in deformation-free areas of the body of the vehicle. The mounting carrier serves as a support for deflection devices which during a head-on collision become operatively connected to the bearing block/pedal lever unit in such a way that the translatory movement of the said unit which is brought about by the head-on collision and directed into the passenger compartment has superimposed on it a rotational movement which moves the pedal levers away from the driver of the vehicle. <IMAGE>
Patent DE-3906631-A1 (DE)
Title: Method for preparing polyheterocyclic compounds, and film-like products obtained in accordance with this method
Inventor: NAARMANN HERBERT DR
IPC: C08G61/12
Filed: 1989-03-02
Abstract: Method for the preparation of polyheterocyclic compounds (polyheterocyclics) by electrochemical polymerisation of heterocyclic compounds (heterocyclics) in an electrolyte solvent in the presence of a supporting electrolyte, the polyheterocyclic compounds being precipitated at the anode, which method involves the use, as the supporting electrolyte, of an inorganic complex salt of metals of the groups Ib, IIb, IVb, IVa, Va, VIa, VIIa and VIII of the Periodic Table of the Elements, and the polyheterocyclic compounds obtained in accordance with this method.
Patent DE-3917582-A1 (DE)
Title: Driving and regulating loudspeaker - comparing actual and required diaphragm movement to control constant current source
Inventor: RICHT OSKAR HUBERT
IPC: H04R3/00
Filed: 1989-05-30
Abstract: The active loudspeaker regulation method uses a sensor (6) for detecting the movement of the loudspeaker diaphragm supplying a signal to one input of a comparator (5) for comparison with a signal representing the required movement. The difference signal provided by the comparator (5) is fed to the non-inverting input of a constant current source (4) incorporated in the output stage for driving the loudspeaker diaphragm. Pref. an ohmic resistor (3) is coupled between the base point (1) of the loudspeaker (2) and earth, the inverting input of the constant current source (4) being coupled to the loudspeaker base point. ADVANTAGE - Improved sound quality.
Patent DE-3919533-A1 (DE)
Title: Soot burning filter for diesel engine - incorporates fine mesh located after filter
Inventor: SCHWING FRIEDRICH
IPC: F02M26/35
Filed: 1989-06-15
Abstract: Soot burn-off filter (3) made of ceramic material for the exhaust gas system of a diesel engine having exhaust gas recycling and/or exhaust gas turbocharging with at least one mechanical after filter for the exhaust gases. The mechanical after filter is a heat resistant metal mesh (7) with a pore diameter of less than one micron. ADVANTAGE - Simple after filter able to trap fine particles of ceramic material which may come loose from the main filter.
Patent DE-3922134-A1 (DE)
Title: Sweeping machine
IPC: E01H1/04
Filed: 1989-07-05
Abstract: Published without abstract.
Patent DE-3924564-A1 (DE)
Title: Prepn. of zeolite from power plant waste - with alkali under defined conditions of molar ratios, temp, and duration
Inventor: HUELLER ROLF DIPL CHEM DR
IPC: B01J20/18
Filed: 1989-07-25
Abstract: In prepn. of zeolite W by hydrothermal reaction of glassy waste material from power plants using solid, fossile fuels, with aq. alkalies, opt. in admixture with alkaline earths and/or (in)organic NH4 cpds., with establishment of a required molar ratio of M2/n/Al2O3 and H2O/Al2O3, for up to 1 day, opt. with stirring and heating at a definite temp., followed by sepg. the prod. formed, with other solid components, from the aq. phase, washing and opt. drying, (a) the molar ratio of K2O/SiO2 in the reaction mixt. is 0.5-0.8, (b) the molar ratio of H2O/K2O is 16-29, (c) the molar ratio of SiO2/Al2O3 is 3.5-6 (4-5), (d) the molar ratio of K2O/Al2O3 is 2-5 (2.6-3), (e) the molar ratio of H2O/Al2O3 is 32-145 (60-80), (f) the molar ratio of (K2O + Na2O)/Al2O3 is 2-5 (2.6-3), (g) up to 50% of the K2O may be replaced by Na2O, (h) the reaction temp. is 90-180 (90-150) deg. C, and (i) the reaction time is 10-24 h. ADVANTAGE - The zeolite has little contamination by other amorphous and crystalline impurities and is obtd. in high yield from cheap materials. Dusty wastes from pumice and perlite processing can also be used as raw materials. The zeolite has high selective absorption capacity for NH4 ions, even in presence of Ca and Mg ions. The zeolite can be used for selective absorption of NH4 ions from waste water, even in presence of relatively high concns. of Ca and Mg ions.
Patent DE-3924957-A1 (DE)
Title: Control circuitry driving print nozzles in ink mosaic printer - uses timer-controlled switches for pulse generation without large inductive components
Inventor: LICHTI REINER
IPC: B41J2/015
Filed: 1989-07-27
Abstract: An ink mosaic printer nozzle drive circuit contains piezoelements which expand or contract ink channel dia. when polarisation or anti-polarisation d.c. voltages are applied.  The start of each spray process is closk-controlled. Each piezoelement (CP1) is connected between the output of a common amplifier (V) and earth and the output of a transistor switch (TS) and, via a resistor (R), to the d.c. voltage supply (UB). The piezoelement sides are switched to the positive and negative d.c. voltages (UB,-UB) under clock control to control printing. ADVANTAGE - Simply generates control pulses without using large inductive components.
Patent DE-3925684-A1 (DE)
Title: Suppressor of interference from mains-powered TV receiver - comprises boxed intermediate three-pin socket around which lead from additionally earthed mains plugs is wound
Inventor: KRAUS BRUNO-JOSEF
IPC: H04B15/02
Filed: 1989-08-03
Abstract: The mains lead (19) to the receiver (11) is taken from its plug (10) through an intermediate socket (3) in a box (1) with a cover (7). The portion (9) within the box (1) is wound in three layers of 15 or 16 turns around the socket (3) before connection to phase, neutral and earth terminals (4-6). An earth lead (12) links the plug safety contact (14) to a Cu blade (13) inserted between the outer conductor of the plug on the antenna feeder (17) and its socket (15). USE - To protect inhabitants of multiple dwellings from injurious RF fields radiated by neighbours' TV mains leads.
Patent DE-3927663-A1 (DE)
Inventor: REICHERT CURT DIPL ING
IPC: F42C13/06
Filed: 1989-08-22
Abstract: The device consists of a microphone sensitive to helicopter noises, an infrared sensor and an electronic evaluation device, the electronic evaluation device analysing the helicopter noises and, when a predetermined noise intensity is reached and there is a simultaneous response of the infrared sensor, triggering the firing. 
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Patent DE-3928058-A1 (DE)
Inventor: SOLBACH HERMANN-JOSEF DIPL CHE
IPC: D21B1/12
Filed: 1989-08-25
Abstract: Described is a process for the thermal re-treatment of mechanically produced wood pulp by means of steam to modify the properties relevant to the production of paper from the mechanical wood pulp.
Patent DE-3932283-A1 (DE)
Title: Semi-automatic lead battery plate filling device - has workpiece carrier supporting battery plates above injection jets and covered by pivoted plate
Inventor: MUND INGO
IPC: H01M4/16
Filed: 1989-09-27
Abstract: The battery plate filling device uses a dosing pump for injection of an active mass via jets into the annular space between the tubular sleeve and the grid core of the cylindrical battery plates. A platform (A) displaced perpendicular to the filling direction supports two workpiece carriers (B, C), one next to the other, with a pivoted plate (D) mounted on the platform (A) between them. The plate is used to cover whichever workpiece carrier (B, C) supports the battery plates to be filled above the injection jets. The latter are pref. displaced pneumatically in the filling direction relative to the aligned battery plates. ADVANTAGE - Improved productivity rate.
Patent DE-3942681-A1 (DE)
Inventor: HOEFER RAINER DR
IPC: C08G18/44
Filed: 1989-12-22
Abstract: The invention concerns the use of a substantially clear and at least largely solvent-free aqueous polyurethane dispersion based on: a polyol mixture consisting completely or partly of polycarbonate dioles; an on average bi- or multifunctional isocyanate component, preferably containing dimeric fatty acid isocyanates; an aqueous solution of a functional component capable of forming salts; and, if desired, a chain lengthening agent; as a domestic universal adhesive.
Patent DE-4004647-A1 (DE)
Title: Non-foaming aq. multiphase agent for washing gases - comprising water, water-insoluble oil, surfactant and finely divided inert solid
Inventor: KOERNER BERNHARD DIPL CHEM
IPC: B01D53/72
Filed: 1990-02-15
Abstract: Non-foaming or low-foaming agent for purifying gases or effluent gases by removal of unwanted chemical components, esp. organic chemical components, the agent being at least two-phased and consisting of or contg. 0.1-10 (0.5-2.5) wt.% of at least one fatty acid-free surfactant, 1-25 (1.5-20) wt.% of at least one oily liq. which is insoluble or difficultly soluble in water (measured at water temp.), more than 40, esp. more than 55 wt.% water, 0.05-8, esp. 0.5-5 wt.% of at least one inert finely divided solid with a particle size of less than 1 micrometre and/or 0.01-10, esp. 0.01-9 wt.% of an additive which is soluble, suspendable or dispersible in the compsn. and which reacts with the harmful substances with polymerisation, polycondensation or polyaddition and/or which initiates or accelerates the polymerisation, polycondensation or polyaddition, and/or which consists of a surfactant comprising a mixt. of at least two surfactants with different HLB values, esp. where the HLB values differ by at least 3, pref. by at least 5, and/or 0-13, esp. 0.01-9 wt.% antifoam agents, processing assistants or other additives.
Patent DE-4005458-A1 (DE)
Title: Rear axle suspension for vehicle - has linkage and bearing to reduce track variations
Inventor: BUFLER ERNST DIPL ING
IPC: B60G3/26
Filed: 1990-02-21
Abstract: The rear axle suspension is for a vehicle. The long linkage (1) and the stub-shaped cross linkages (3,4) are spatially so arranged that with normal load, on one side the lower cross linkage (4) lies in or above a horizontal plane through the bearing (6). On the other side the upper cross linkage (3) run obliquely downwards and a bearing with a cardan joint movement is created between the bearing (6) and the linkage (1). USE/ADVANTAGE - Compact and lightweight rear axle suspension in which changes in track are minimised.
Patent DE-4008316-A1 (DE)
Title: Universal display pack for pens and similar - has two wall members displaceably connected together and provided with apertures
Inventor: SCHMID KARL-HEINZ
IPC: B65D73/00
Filed: 1990-03-15
Abstract: The display packet for storing goods such as a  pen has two wall parts (1,2) forming the back and front wherein at least one wall part (2) has an aperture (8) through which the pen can be pushed. The two wall parts are connected displaceable relative to each other in the insert direction (6). Intermediate pieces (3,4) can be provided if required to form top and bottom sides connecting the wall parts together like a hinge joint. ADVANTAGE - The relative displacement of the two wall parts makes it easier to adjust the package to the required length.
Patent DE-4009002-A1 (DE)
Title: Rail hook - maintains tanker rail wagon valve open during filling and discharge operations
Inventor: WESSELS LUER ING GRAD
IPC: B61D5/00
Filed: 1990-03-21
Abstract: The rail hook has a shaft at the one end of which are means for connecting with the operating mechanism of the tanker rail wagon valve. At its other end, the shaft has a hook claw (2, 3) securing laterally behind the rail on which the wagon stands, and a security device which, when a max. limit tractive load of the rail hook is exceeded, releases the operating mechanism of the wagon valve. On the hook shaft (1) is at least one support surface (10) which locates on the side surface (12) of the rail furthest away from the hook claw (2, 3). Thus surface is arranged in the longitudinal direction of the rail (4) spaced from the longitudinal axis of the hook shaft (1). USE/ADVANTAGE - For railway tanker wagons, to ensure that even if the wagon is pushed during loading and discharge operations it does not move along the track, and that in such an event the wagon valve operating mechanism is released.
Patent DE-4009916-A1 (DE)
Title: Clutch control for vehicle - has strut attaching control to housing, and in which two control pieces move with cam pieces between and includes two rings
Inventor: BACHER MICHEL
IPC: F16D23/12
Filed: 1990-03-28
Abstract: The clutch control, is esp. for a vehicle, and has a strut (14) attaching it to a housing (11).  Two control-pieces (17,16) are on the strut (14) and rotate in relation to each other.  Cam pieces (18) fit between the two control pieces (16,17). A coupling release bearing (20) is axially joined to the movable control piece and has two rings (21,22) which rotate in relation to each other.  The movable control piece (17) consists of a single piece with one of the rings (21,22) of the coupling release (20), forming a single metal plate (25). USE/ADVANTAGE - The simple and lightweight control minimises friction and is axially compact.
Patent DE-4012975-A1 (DE)
Title: Time signal receiver for radio clock in motor vehicle - comprises two modules, one contg. receiving circuit and other decoder, clock circuit and display
Inventor: JAGDT HOLGER
IPC: G04G9/00
Filed: 1990-04-24
Abstract: The equipment is installed to receive time signals from a master transmitter and display the correct time with possibly further data in a motor vehicle. The two modules used can be spatially separated in the vehicle. The first module (1) contains at least a receiving circuit (23). The second module (6) contains at least a decoder (26) for the time signals, a clock circuit (27) and a display (28). The first module is directly coupled to an electric antenna pref. rod type (3). The latter is also suitable for reception of radio programmes. The module (1) has a decoupling circuit (22) and output terminal (4,5) for the antenna input of a radio. This module also has an antenna amplifier (24). ADVANTAGE - First module can be coupled to antenna by very short lead. Prevents interference signals arising within bodywork affecting weak antenna signal. Display can be installed at most favourable position without making special arrangements for signal transfer.
Patent DE-4015932-A1 (DE)
Title: Liquid crystal display for high quality images - has image element matrix with compensation circuit for voltage edge sharpening or waveform distribution masking
Inventor: HOSHINO MINORU
IPC: G02F1/133
Filed: 1990-05-17
Abstract: The liq. crystal display contains a matrix (4) of liq. crystal image elements with X and Y electrodes to which drive voltages are applied by drive circuits (2,3). A compensation voltage is superimposed by another circuit (1) to sharpen at least the leading or trailing edge of the liq. crystal drive voltages or to mask a waveform distortion by continually varying the waveform in at least one of the drive circuits. USE/ADVANTAGE - Reduces degree of cross-talk and are suitable for high quality image representation with uniform brightness.
Patent DE-4016597-A1 (DE)
Inventor: REICHENECKER HANS
IPC: B29K96/00
Filed: 1990-05-23
Abstract: The description relates to the use of a nucleation agent in a process for the production of loose-fill packing from starch. The nucleation agent is applied to the surface of starch granulates in finely divided form in quantities of 0.1 to 0.2 % of the weight of the granulates and in a grain size of about 50  mu . The granulates thus coated with nucleation agent are taken to an extruder (14) in which they are converted from their solid to a viscous fluid state so that a starch foam produced by the decomposition of the nucleation agent with the action of heat in the extruder (14) is extruded from the moulding aperture (15) of an extruder (14) and cut off directly at the moulding aperture (15) even before any substantial expansion has taken place. The starch particles (18) thus formed are taken into a storage container and, after intermediate storage, expanded to their final size in a post-expansion unit (23).