baber/WOPTO huggingface dataset:
Patent DE-4000221-A1 (DE)
Inventor: GRAUVOGL ERWIN
IPC: G05B19/19
Filed: 1990-01-05
Abstract: In a process for controlling an actuator which can be adjusted by means of a proportional valve, the proportional valve is controllable by means of two control magnets with control pulses acting in opposite directions. A phase angle between the control pulses is varied as a function of at least one control variable (command variable, correction variable or difference between the amplitudes or pulse durations of the control pulses), i.e. it is reduced as the control variable increases. This measure prevents undesired vibrations of the actuator and resulting noises.
Patent DE-4003102-A1 (DE)
Title: Packaging for electrical components - has spacer material formed to suit shape of components
Inventor: KUPPER ROLF
IPC: B65B5/10
Filed: 1990-02-02
Abstract: Small electronic components, such as capacitors, have a rectangular section body shape (2) with projecting pins and are packed in layers in a box shaped housing (1). The layers of components are supported on spacing material (31) that has a corrugated profile and are in cut sheet form. The corrugations are of a rectangular shape and offer considerable stiffness. The projecting pins (22) locate in the channels of the next layer of packing, while the main body is supported on the lower layer. ADVANTAGE - Provides ordered packing for components.
Patent DE-4003596-A1 (DE)
Title: Standard corrugated metal hose test procedure - applying torque in opposite rotational directions to length held between terminal mounts
Inventor: BODEN KURT
IPC: G01N3/02
Filed: 1990-02-02
Abstract: To provide a standard comparison test of the bending behaviour of corrugated metal hose (1), the opposite ends of the length of hose are engaged in holders (7) which are then subjected to equal torques applied in opposite directions. The holders (7) are rotatably held at the heads of upright carrier columns (5) mounted in pivoted base supports (12) sepd. by an adjustable gap (D). A tensioning bar (8) held vertically at the centre line of the gap, and perpendicular to the central neutral line (4) of the extended hose, is hingedly attached to symmetrical shear arms (9) with upper pivotal attachments (11) to the carrier columns. The hose may be internally pressurised to reproduce certain load conditions. When the hose end carries connector fillings these are gripped in the holders (7).
Patent DE-4007102-A1 (DE)
Title: Adjustable vehicle window-lifting mechanism - has adjusting mechanism movable along and pivoting on lifting member
IPC: E05F11/38
Filed: 1990-03-07
Abstract: The window-lifting mechanism has a lifting member (2) fixed to the pane (11), and a drive mechanism coupled to it via a transmission member (5). The pane is adjustable in the vertical and lateral directions. One attachment point (51) for the transmission member is attached to the adjusting mechanism (8). The latter is secured to the lifting member at two or more points, the first of these being adjustable only on this member in the its lengthwise direction. The second is adjustable so as to alter the angle between mechanism and member. USE/ADVANTAGE - Simplicity and precise adjustment of window-lifting mechanism in vehicle.
Patent DE-4008280-A1 (DE)
Title: Indicating ice etc. on road surface - using IR detector and halogen lamp source with beam modulator and narrow bandpass filter
Inventor: SCHMITT KLEMENS DIPL PHYS DR
IPC: G01N21/55
Filed: 1990-03-15
Abstract: A method of determining the condition of a road surface (40), i.e. whether the surface is dry wet oricy, employs the reflected spectra of a broadband infra-red sources e.g. a halogen lamp (11) with a reflector (12) a beam modulator (14) a filter (13) and a window (15). Two 50 nanometre bands centred on 3050nm and 2900nm are used as reference spectra and reflected energy within these bands generates a corresponding voltage at receives (25,26) after filtering (21,222) and focussing (23,24). The ratio of these voltages is evaluated by a signal proc-essor (30) and an output unit (31) for visual/audio indication of surface condition.
Patent DE-4009570-A1 (DE)
Title: Shock absorber for bicycle - consists of compression spring inside telescopic tube which supports saddle
Inventor: BOCK SEN MANFRED DIPL ING
IPC: B62J1/06
Filed: 1990-03-24
Abstract: A shock absorber, for a bicycle, is especially intended for cyclists suffereing from slipped discs. The shock absorber is embodied in the saddle support and consists of two tubes (1) and (2) with the upper tube (1) being a sliding fit in the lower tube (2). A compression spring (3) is fitted inside the tubes and abuts against the end wall of each tube. The initial compression of the spring (3) is adjusted by a nut (5) screwed on to the upper end of a rod (4) which is secured to the end cap of the lower tube (2) by two nuts (5). The upper end of the upper tube (1) is firmly attached to the bicycle saddle whilst the lower tube (2) is fixed in the bicycle frame. USE - Bicycle shock absorber.
Patent DE-4012719-A1 (DE)
Title: Engine esp. diesel engine exhaust gas purificn. by complete filtration - with gas permeable filter of refractory fibres to remove solid particles, e.g. soot
IPC: F01N3/023
Filed: 1990-04-21
Abstract: Elimination of harmful constituent from engine exhaust gas, esp. from diesel engines, involves passing the gas through a gas-permeable filter consisting (partly) of fibres withstanding high temp. These fibres contain metal oxide(s) and/or metalloid oxide(s) and opt. binder, additives, support and catalyst for oxidn. of combustible particles, esp. soot, hydrocarbons and/or CO and/or reducing NOx. The gas is passed into chamber(s) of a filter having inner filter(s) surrounded by an outer filter; this chamber is closed on the outlet side; the filtered gas is delivered from chamber(s) closed on the inlet side; and the filter has a density of 0.03-1.5, pref. 0.06-1, esp. 0.06-0.5 g/cc. The gas is pref. through a filter surrounded by a support suited to the gas flow. A gas-permeable cloth- or mat-type sheath. The filter fibres consist (mainly) of Al2O3, SiO2 and metal(loid) oxide(s), pref. ZrO2 and/or TiO2 fibres, is used on the outlet side. When the filter is laden with combustible particles, a heater, pref. a burner, is switched on, to burn these. ADVANTAGE - The process is highly effective and very economical. The construction of the filter ensures that all the gas passes through it.
Patent DE-4015583-A1 (DE)
Title: Distributing wood fibres onto moulding band - using storage bunker with mechanical rollers feeding dispenser which distributes fibres on to moulding band
IPC: B27N3/14
Filed: 1990-05-15
Abstract: The machine for sprinkling wood fibres on to a moulding band (1) in the production of chip and fibre board. It comprises a bunker (2) for the bulk fibre, a spiked roller (3) to regulate the output of fibre into a uniform mat and feed them into a distributor head (4) which throws the fibres down on to the moulding band (1). The bunker (2) is equipped with a number of quantity determining discs or rollers (5) and an endless belt conveyor (6). The equalising roller (3) is on the output side of the bunker (2) and is height adjustable, and beneath the upper band (7) of the conveyor (6) is a transverse series of pestles (9) with an up and down movement to shake the fibres into a layer of the required thickness. USE/ADVANTAGE - The density of the fibre mat is computer regulated.
Patent DE-4015983-A1 (DE)
Title: Pressure holding valve for desalination plant - has combined pulsation damping and pressure regulating choke element in simplified appts.
Inventor: BLIESENER DIETER
IPC: G05D16/02
Filed: 1990-05-18
Abstract: A pressure holding valve (1, 2) with a pulsation damper, has a choke element (10) which is subjected to gas pressure at one side, the gas pressure pref. being transferred to the choke element by a membrane (5). Pref. the gas pressure is provided by compressed air and its value is regulated by magnetic valves (15, 17). The choke element (10) may be loaded by a compression spring (6). USE/ADVANTAGE - The valve is used in water desalination by reverse osmosis. Pulsation damping and operational pressure control can be effected by a single element, thus simplifying the equipment.
Patent DE-4020495-A1 (DE)
Title: Impregnating agent for wood which also imparts surface finish - contains isocyanate modified linseed oil, siccative mixt., biocide, hydrocarbon-free solvent and paraffin, wax or polyolefin dispersion
Inventor: BOLLINI TULLIO
IPC: B27K3/50
Filed: 1990-06-27
Abstract: A liq. impregnating agent contains as the main component, the dry substance isocyanate modified linseed oil and a drying (siccative) mixt. The solvent consists mainly of an aliphatic hydrocarbon-free liq. The agent also contains a finely divided paraffin, wax or polyolefin dispersion. USE/ADVANTAGE - The impregnating agent does not contain water and can be applied as a paint which impregnates better into the wood than previous agents giving a fungicidal and algicidal effect and simultaneously provides a surface finish, thus obviating the need for separate surface treatment. The agent protects the wood better from water, UV light, sun and the cold and is also environmentally friendly. The surface is smooth and shiny. Both the impregnation and the finish are long lasting.
Patent DE-4030323-A1 (DE)
Inventor: KNIPPING DANIEL
IPC: F16L33/207
Filed: 1990-09-25
Abstract: In a compression pipe coupling, at least one pipe end (2, 3) is connected by means of a compression connecting ring (7, 8), which is pushed on axially, and a supporting sleeve (4), which is inserted into the pipe end, is profiled on the external circumference and has an external radial stop flange (11) for the pipe end (9, 10). In this case - seen in longitudinal section - the outside of the pipe end (9, 10) is surrounded by a coupling part (14) which extends in the longitudinal direction beyond the front end of the pipe end (9, 10). This coupling part (14) can be formed by a suitably designed supporting sleeve (4) or a suitably designed compression connecting ring (7, 8) or a suitably designed crushing sleeve (5, 6). The pipe end (2, 3) is advantageously gripped in a positively locking manner, as a result of which improved corrosion protection in the direction "from the exterior to the interior" is provided at the same time. <IMAGE>
Patent DE-4037988-A1 (DE)
Inventor: VETTER RICHARD
IPC: F24D9/00
Filed: 1990-11-29
Abstract: The invention starts from a process for heating buildings, in which a boiler installation (1) forming combustion gases is used. In order to achieve wide utilisation of the fuel energy, and in particular also with intermittently operating installations, the combustion gases, which are cooled in the boiler installation (1) to approximately 70 - 40 DEG C, are according to the invention conveyed to a tubular heat exchanger (10) for room heating, which the combustion gases leave with a temperature corresponding essentially to the room temperature. The device envisages pipes (12-15) made of plastic embedded in walls, floors and ceilings, the pipes (12-15) conducting the gases and the mentioned parts of the building forming the storing mass. <IMAGE>
Patent DE-4041819-A1 (DE)
Inventor: ROTHENBUEHLER WALTER
IPC: E04F13/04
Filed: 1990-12-24
Abstract: The fastening element (1) for insulation panels (2) is fastened to a hard building component (A) by means of a setting implement. To prevent damage to segments (6) in the mouth region of the recess (4b), the recess (4b) has a widening (4d). The latter corresponds to twice the wall thickness of a segment (6) and has a depth corresponding to the length of a segment (6). Thus, on introducing the mouth (8a) of a setting implement (8), besides the recess (4b) the bent segments (6) also serve as a guide face. On applying a coat of plaster (9), plaster material gets behind the bent-up segments (6) so that a fastening acting in a manner so as to engage behind is ensured. 
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Patent DE-4105572-A1 (DE)
Title: 3,5-Di:fluoro-4-chloro-benzene derivs. - by Grignard reaction of 3,5-di:fluoro-benzene with cyclohexanone, dehydration, oxidn.or redn., and treatment with base and chlorinating agent
Inventor: REIFFENRATH VOLKER
IPC: C09K19/30
Filed: 1991-02-22
Abstract: 3,5-Difluoro -4-chlorobenzenes of formula (I) are produced by reaction of 3,5-difluorobromobenzene (II) with Mg metal, followed by reaction of the resulting Grignard reagent with a cyclohexanone deriv. of formula (III), dehydration of the carbinol obtd., oxidn. (if A= 1,4-phenylene) or hydrogenation (if A= 1,4-cyclohexylene), and reaction of the intermediate (IV) with a strong base and a chlorinating agent. R1= 1-10C alkyl or alkoxy; A= 1,4-phenylene or 1,4-cyclohexylene. USE/ADVANTAGE - Cpds. (IV) are useful as components of liq. crystal (LC) media (claimed); also claimed are LC media with at least 2 LC components, at least one of which is a cpd. (IV), and LC displasy contg. such LC media. The invention provides a simple process for the prodn. of (I) (which are also useful as LC components) from readily available starting materials, without the formation of a mixt. of regio-isomers.
Patent DE-4111648-A1 (DE)
Inventor: UPHUES GUENTER
IPC: C11D1/52
Filed: 1991-04-10
Abstract: Textile treatment agents obtainable by the condensation of a) fatty acids with 6 to 22 carbon atoms or their esters with b) possibly hydroxyl-substituted polyamines followed by the partial neutralisation of unconverted amino groups and the addition of dispersion accelerators are noteworthy for their improved water dispersibility if the content of compounds with primary amino groups is less than 40 wt % in relation to the amino compounds in the media.
Patent DE-4111713-A1 (DE)
Inventor: HEIDELBERG GOETZ
IPC: F04D7/06
Filed: 1991-04-10
Abstract: The invention concerns a compact-design pump which is hermetically sealed to the outside and has no shaft lead-outs. The pump has a housing with an internal partition which divides the inside of the housing into a drive section and a pump section. A single shaft is mounted in the partition and carries on one side the rotor (14) of an electric drive motor (12-15) and on the other side the impeller (26) of the pump. In the space (25) in the drive section (4), a gas pressure is generated which assists in preventing the fluid being pumped from passing into the drive section (4).
Patent DE-4113038-A1 (DE)
Title: Gymnastic or physiotherapy apparatus - imposes tensile force on spinal column in order to relax it
Inventor: FLEISCHMANN WOLFGANG
IPC: A61H1/02
Filed: 1991-04-20
Abstract: The gymnastic or physio-therapy apparatus for relaxing the spinal column has a board (1) which can be inclined to the horizontal at a variable angle. The lower end of the board is supported on each side by a wheel (7), whilst the user's feet are fastened to the upper end of the board (15). The upper end of the board has a shaft projecting horizontally from each side and each shaft engages a guide groove in one or other of two vertical guide rails (4, 5). A cable (10) fastened to the upper end of the board, passes around a guide bar and has its free end fastened to a bar which can be gripped by the user. By pulling on the bar, the user imposes a tensile load on the spinal column and alters the angle of inclination of the board. USE/ADVANTAGE - Gymnastic and physiotherapy apparatus which relaxes the spinal column.
Patent DE-4113420-A1 (DE)
Title: Hollow polyacrylonitrile fibres, useful for membrane processes - mfd. by dry-wet or wet spinning from special spinning solns. contg. PAN and non-solvent etc., with simultaneous extrusion of core fluid
Inventor: KLEE RUDOLF-JUERGEN DR
IPC: B01D71/42
Filed: 1991-04-25
Abstract: Hollow polyacrylonitrile (PAN) fibres (I) (a) contain at least 85 (pref. 99-100) wt.% acrylonitrile, (b) the pore structure in the sheath is asymmetrical, enabling high permeation rates, (c) the original pore structure in the wet fibre is stabilised for more than 6 months in the dry state, (d) the internal dia. (dF) is 0.3-2.5 (pref. 0.8-2.0)mm, (e) ratio of outside dia. (DF) to dF = 1.1-1.8, (f) the fibres have a high bursting strength for a given geometry and separating properties and (g) the sepn. limit = 1-3000 k-dalton. Also claimed is a process for the prodn. of (I), by mixing the PAN with a cold solvent such ad DMAC or DMF contg. 5-30 wt.% non-solvent (II) (w.r.t. solvent and solids), opt. with addn. of 0-35 wt.% pigments (e.g. TiO2), evacuating the homogenised mixt., pumping it through a heater at 130-150 deg. C, cooling to the spinning temp. (80-130 deg. C), filtering and pumping through a conventional perforated hole/ring nozzle with simultaneous extrusion of a core material by the dry/wet process or the conventional wet spinning process; (II) has b.pt. at least 30 deg. C higher than the solvent, is readily miscible with water and is a non-solvent for the polymer which does not cause pptn. in the spinning soln.; the core fluid is glycerol, glycerol/water or nitrogen; the spun, pptd. fibres are subjected to various successive washings and after treatments, using at least one water bath at at least 80 (pref. 98-100) deg. C, and all liq. residues (including water) are removed by exchange with monoalcohols of b.pt. below 100 deg. C, pref. ethanol, followed by evapn. to give dry, stable hollow fibres. USE/ADVANTAGE - The hollow PAN fibres have improved properties and a pore structure which is stable for more than 6 months in the dry state. Useful in membrane processes such as ultrafiltration and microfiltration.
Patent DE-4113898-A1 (DE)
Inventor: REINHOLDT BERND
IPC: E21B17/10
Filed: 1991-04-27
Abstract: For deep-hole drilling, a centring cage for the central guidance of pipes is proposed in which the supporting rings surrounding the pipes have inner peripheral grooves, and the pipes to be centred are provided in the area of the supporting-ring grooves with stop rings which are arranged in pipe peripheral grooves and can be pushed through window-like openings of the supporting rings into the pipe grooves after the centring cage is pushed onto the pipe. 
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Patent DE-4115187-A1 (DE)
Inventor: WENDEL HEINRICH
IPC: F21V9/40
Filed: 1991-05-09
Abstract: The invention concerns a process and a device for adjusting the illumination and colour temperature of a light produced by a fluorescent tube (12) and emitted in a room. Reflector elements (14) with lateral surfaces of different colours and different geometric shapes are disposed around the fluorescent tube (12). Each lateral surface reflects at a higher intensity in a given colour temperature range. Seasonal changes in natural light are simulated. This is achieved by placing the reflector elements (14) in various positions which are changed according to the time of day and the season.
Patent DE-4117505-A1 (DE)
Title: Measuring output current of clocked half bridge circuit, e.g. for driving motor - adding sum of AC output current and semiconductor switch currents in one state to AC current is second state
Inventor: LEIBL THOMAS
IPC: G01R19/00
Filed: 1991-05-29
Abstract: The method of measuring the output current of a clocked half bridge circuit (2) involves measuring, adding and storing the current flowing through the semiconductor switch (2;3) and the a.c. output current in one state. The a.c. current is subtracted from the stored value and the difference used as the measurement result for the first state. The stored sum value is added to the a.c. current value measured in a second operating state and the result used as the measurement result for the second state. The summation is performed with a sign inversion. USE/ADVANTAGE - E.g. for use in motor drive circuits. Enables economical measurement of output current without using d.c. converter.
Patent DE-4118721-A1 (DE)
Title: Ceramic grooved ball bearing assembly - has high volumetric density providing improved load bearing and design characteristic
Inventor: MICHELL WINFRIED DIPL ING
IPC: F16C33/30
Filed: 1991-06-07
Abstract: The grooved ball bearing is made of polycrystalline ceramics material, esp. a non oxide ceramic such as silicon nitride. It has an inner and outer ring (3) with a cage in between and a bearing track (5). The bearing (1) has a volumetric efficiency of more than fifty percent, according to the formula:- 2 x (number of rollers - 1) x beta x 100 percent/360 deg., where beta = arcsin (r/(R-r)) and r = roller radius and R = radius of the bearing track (5) from the outer ring. USE/ADVANTAGE - High axial load bearing ability, with vertical mounting which prevents roller loss.
Patent DE-4120077-A1 (DE)
Title: Ringing current for hands-free telephone station - includes separate polarity protection for amplifier and control microprocessor drawing upon isolated DC supply
Inventor: NIJMOLEN GERRIT WILLEM
IPC: H04M1/60
Filed: 1991-06-18
Abstract: AC ringing voltage on the subscriber line (TL) is rectified by a polarity protection circuit (VPS1) and has no further effects while the series transistor (T) ahead of the speech circuit (SS) is blocked (SE). A second polarity protection circuit (VPS2) supplies a blocking DC-DC converter (SPW) providing an entirely isolated DC voltage for the microprocessor (MP) controlling the signal to the loudspeaker amplifier (V). The isolated DC voltages are smoothed by filter capacitors (CS1, CS2). ADVANTAGE - Stray currents through direct coupling of negative branch of ringing circuit to the negative side of speech circit are avoided.
Patent DE-4121142-A1 (DE)
Title: Easily removable cushioning system for blanking press - has damper actuating plungers mounted in frame which can be removed as single unit
Inventor: KAISER HEINZ
IPC: B30B15/24
Filed: 1991-06-26
Abstract: The press has a reciprocating ram (8) and a bottom clamping plate (5) which can be moved in and out of the working space on runners (30). A tool set (12,32) can be set up between the ram and bottom clamping plate. Mounted in a frame (31) fastened to the bottom clamping plate are adjustable length actuating plungers (24). The frame (31) can be removed together with the plungers as a single unit to allow the full area of the bottom clamping plate to be used for tooling. ADVANTAGE - Reduced set-up time.
Patent DE-4129323-A1 (DE)
Title: Prepn. of succinyl-choline-halide(s) - by reacting succinic acid di:alkyl ester with excess di:methyl-amino ethanol using alkali-alcoholate or -amide as catalyst, and reacting prod. with methyl halide
Inventor: RAML WALTER DR
IPC: C07C213/06
Filed: 1991-09-04
Abstract: The prepn. of succinylcholine halide derivs. of formula (I) comprises (a) reacting a succinic acid dialkyl ester of formula (II) with excess dimethylamino methanol, in the presence of alkali-alcoholates or -amides as the catalyst and continuously distilling off the alcohol produced in the reaction; (b) recovering the excess dimethylamino ethanol, inactivating the catalyst and filtering it off; and (c) reacting the succinic acid bis-(2-dimethylaminoethyl ester) of formula (III) formed with a methyl halide to give (I). In formulae, X is Cl, Br or I; and R1 is 1-4C alkyl. USE/ADVANTAGE - (I) can be used as a muscle relaxant. (I) is obtd. in high yields and purity (unlike in previous processes). The dimethylaminoethanol acts simultaneously as reactant and solvent and the excess has no negative effect on the reaction.
Patent DE-4133231-A1 (DE)
Title: Sales counter with top display compartment - has rotary front panel on horizontal pivot axle, with two=part support with grip cavity.
Inventor: FINKENAUER HARRY
IPC: A47F3/00
Filed: 1991-10-07
Abstract: The sales counter has a main part (2) on which is a display compartment (3). This has a rotatable front panel (4) which turns on a horizontal, top axle. The bottom edge of the panel overlaps over the top edge of the main part. The main part front top edge forms a surface acting as a support and with a grip-cavity in the middle on each side of which is a profiled part. USE/ADVANTAGE - The front panel of the sales counter display compartment is more easily lifted by a grip-cavity, and the front panel bottom edge is protected from damage when closed.