baber/WOPTO huggingface dataset:
Patent DE-3839842-A1 (DE)
Inventor: KURBJUHN WILFRIED
IPC: B60B33/02
Filed: 1988-11-25
Abstract: The invention relates to a castor, in particular a steering roller (2), having a fork-shaped roller housing (4) with a fork bridge (6) and two fork arms (8), a running wheel (12) mounted rotationally between the fork arms (8), in particular a live ring (16) mounted in the fork bridge (6) on the side of connection of the apparatus and a locking device (20) mounted on the roller housing (4) having a locking lever (22), which is mounted movably, is spring-loaded and arranged approximately tangentially in relation to the circumference of the running wheel (12), and a release lever (24) which is mounted movably, is spring-loaded and interacts in an arresting manner with the locking lever (22). The locking lever (22) can preferably be moved by foot operation from a release position into an arrested locking position, in which, by means of a locking element (26) of a first lever arm (28), it locks the running wheel (12) and, in particular, by means of a second lever arm (32), it also locks the live ring (16). By operation of the release lever (24) the locking lever (22) can be moved back into the release position again due to its spring-loading. According to the invention, the locking lever (22) has an arresting element (48) which interacts non-positively and/or positively with the release lever (24) and with a housing wall (36) forming an abutment in such a way that it can be arrested essentially in any position beyond the path of its lever. <IMAGE>
Patent DE-3902858-A1 (DE)
Title: Measuring head
Inventor: CUDOV VLADIMIR ALEKSEEVIC
IPC: G01B5/012
Filed: 1989-02-01
Abstract: The measuring head has a housing (1) comprising a flange (2), a measuring lever (3) with a measuring insert (4), and a rigidly attached support element (5) which is supported on the flange (2). The measuring head also contains a measuring transducer (6) with a rod (7), a means for centring the measuring lever (3) which is connected to the rod (7) and the measuring lever (3), and a means which is intended to prevent the measuring lever from rotating about its own axis and is attached to the measuring lever (3) and coupled to the housing (1). <IMAGE>
Patent DE-3918067-A1 (DE)
Title: Hygienic mouth-piece for drinking receptacles - is in three parts, with protective film on both sides, placed over rim
IPC: A47G19/22
Filed: 1989-06-02
Abstract: The hygienic mouth-piece for all kinds of drinking receptacles is packed in food-friendly protective film (a). One side of the mouth-piece is adhesive. The mouth-piece is in three parts, the bottom part of which is stuck directly over the glass rim of the receptacles. The protective film is stripped off and the bottom part is inverted over the part of the glass rim from which the user is to drink, the third, top, part comes into contact with the mouth. USE/ADVANTAGE - The mouth-piece is suitable for glass, china china or other materials of drinking receptacles and is disposable.
Patent DE-3918610-A1 (DE)
Title: Air cooled heat exchanger with finned tubes - has fin surfaces embossed or roughened to create turbulent air flow
Inventor: REFLE JOSEF
IPC: F28F1/32
Filed: 1989-06-07
Abstract: An air cooled heat exchanger has a number of parallel tubes through which the medium to be cooled flows. These  tubes pass through holes (2) in fins arranged parallel and close  to each other so that the spaces between the fins form passageways for the air. The surfaces of these fins are embossed with linear, round or polygonal depressions, or the surfaces are roughened. This embossing or roughening of the fin surfaces increases the effective heat transfer area and in addition creates turbulences in the air flow which increases the heat transfer coefficient of the fins. USE - Heat exchangers.
Patent DE-3927287-A1 (DE)
Title: Drip infusion rate control system - with controlling pinch in line corrected by pressure change detected by pressure sensor
Inventor: POLASCHEGG HANS-DIETRICH DR
IPC: A61M5/168
Filed: 1989-08-18
Abstract: A drip infusion regulator has downstream of the controlling pinch a pressure sensor which is connected to a control unit to operate the controlling pinch. The infusion vessel is joined to a drip chamber, a controlling pinch and a patient line with a pressure sensor. The pinch is set to an initial value. In the  second stage the pressure shown on the pressure sensor is compared on a control unit with the desired value. In a third stage the pinch is corrected if necessary. In the next stage, the pinch is altered as a function of any deviation of the pressure from the desired figure. ADVANTAGE - This is a simple and functionally reliable system which guarantees the correct dispensing of an infusion solution at a prescribed drip rate. It has a quick response.
Patent DE-4000464-A1 (DE)
Title: Pipe union nut locking method - locks nut to pipe using self-tapping screw
Inventor: MEINARDI GIUSEPPE
IPC: F16B39/02
Filed: 1990-01-05
Abstract: The method locks a union nut on a pipe in a hydraulic or other system, the pipe fitting in a passage through the nut.  The nut is locked to the pipe, typically by a self-tapping screw (19) engaging with the pipe (2) and accommodated in a tangental drilling (15) in the nut (9). The drilling can be untapped, the screw cutting into it and the pipe wall.  Alternatively the drilling can be tapped for the screw. USE/ADVANTAGE - Simple and reliable locking of union nut on pipe, while allowing easy detachment when necessary.
Patent DE-4000583-A1 (DE)
Inventor: PREIER HORST PROF DR
IPC: G01N21/25
Filed: 1990-01-10
Abstract: A problem associated with radiation absorption photometers which contain a laser diode, in particular a lead salt laser diode, is that the operating parameters, i.e., the relationship between the operating temperature, the operating current and the wavelength of the radiation, cannot be predicted or reproduced with certainty. It is proposed that the values of temperature and basic current for which the wavelength of the radiation lies within a given range be stored. When the laser diode is switched on, it is cooled to a temperature which was stored during the previous operation and operated on the basic current which was stored during the previous operating. The temperature of the laser diode is then changed at least once by a given amount in a given direction if the wavelength of the radiation lies outside the given range.
Patent DE-4002325-A1 (DE)
Title: Automatic transmission gear shaft characteristic for motor vehicle - is used to regulate transition to higher gear according to accelerating pedal movement or transverse acceleration
Inventor: WELTER ANDREAS
IPC: F16H61/02
Filed: 1990-01-26
Abstract: On the plot of throttle opening (beta) vs. road speed (v), the changing-up characteristics (1-4) are represented as vertical lines with notches. In high gear (A) when the accelerator pedal is released the operating point falls, passing through the slops (4d,4b) at different points (C,D). An electronic controller ascertains the rateof pedal movement and extrapolates the instant of transition through the lwoer slope (4b)., If the result lies within a predetermined time limit (e.g. 3 seconds) the entire process is repeated.
Patent DE-4002469-A1 (DE)
Title: Flat work clamp - has suction passages in rubber support sealed off by work
Inventor: STRASSER KARL-HEINZ
IPC: B25B11/00
Filed: 1990-01-29
Abstract: The clamp is for flat work (2), particularly front plates with apertures, for machining. It comprises a support (13) in a flat frame (11) and of rubber or similar elastic material for the work, and in which several suction passages (21) are machined.  These are connected to a common pipe (20), and sealed off by the work.  These passages can be situated at positions clear of the apertures in the work. ADVANTAGE - Simple and rapid clamping.
Patent DE-4007262-A1 (DE)
Title: All wheel drive vehicle transmission - includes freewheel coupling to rear wheels
Inventor: BOCK GERHARD DIPL ING
IPC: B60K17/35
Filed: 1990-03-08
Abstract: The all wheel drive system has a front engine and with the front axle permanently driven.  The rear wheels are linked to the transmission by a centre differential, or by a . viscous clutch etc.  The rear wheel drive includes a freewheel coupling (6) which permits the rear wheels to overtake the front wheels, e.g. to provide rapid decoupling of the rear wheels when cornering. The freewheel coupling is a roller bearing type and is activated by a simple friction clutch (8) in line with the freewheel.  The friction clutch carries 10 to 20 percent of the normal forward torque. USE/ADVANTAGE - Improved stability for all wheel drive, simple addition to transmission.
Patent DE-4009384-A1 (DE)
Title: Window frame section with metal core - has top wooden cladding piece attached by ridges to wooden filler piece
IPC: E06B3/30
Filed: 1990-03-23
Abstract: The window frame section has a metal core (2) the upper surfaces (3,4) of which, corresponding to the visible sides of the window-frame, have wooden cladding pieces (5). Each upper surface (3,4) has a filling (6), pref. of wood. The side (7) of the filling (6) facing away from the upper surface (3,4) is planed. The outer cladding piece (8) of a desired type of wood is placed on the smooth side (7) of the filler (6). Parallel, protruding ridges (9,10) on the upper surface (3,4) have the filler-piece (6) inserted between them. USE/ADVANTAGE - The window frame combines the advantages of real-wood and metal windows.
Patent DE-4013611-A1 (DE)
Title: Process to eliminate thickness errors in wound plastics foil
Inventor: PREDOEHL WILLI PROF DR ING
IPC: B29C48/92
Filed: 1990-04-27
Abstract: A process for producing plastic foil and winding it onto a coil comprising measurement of foil thickness across it's breadth such that positive or negative thickness error signals are fedback to adjust the foil thickness produced. This foil is then wound onto the coil to produce a coil with the required cylindrical profile.  The error signals are fedback via a computer which then controls the produced foil thickness such that the foil is thickened or thinned between the thicker and thinner areas in proportion to the correction signal from the computer. The foil is then wound onto the coil until it achieves the desired cylindrical shape. This process is then repeated until the complete coil has been wound precisely to the required cylindrical shape.
Patent DE-4014869-A1 (DE)
Title: Double torque-transmitting connection in vehicle gearbox - has two independent, coaxial and telescopic shafts connected to radially extending rotational element by splines
Inventor: ASADA TOSHIYUKI
IPC: F16H3/66
Filed: 1990-05-09
Abstract: The double torque-transmitting connection, for use in a vehicle gearbox, has first and second adjacent, coaxial and independently rotating elements (121,79) connected to first and second coaxial shafts (26,30). The first shaft (26) is arragned in and projects from the hollow second shaft (30). First and second outer splines (56,59) on the outer end surfaces of their respective shafts (26,30) slide into and mesh with first and second inner splines (56,59) formed in the bores of the respective rotating elements (121,79). USE/ADVANTAGE - Easier assembly of vehicle gearbox.
Patent DE-4021707-A1 (DE)
Inventor: FRANK ARMIN
IPC: H04H20/83
Filed: 1990-07-07
Abstract: The object of the invention is a coin-operated music playing machine (juke box) (4) with a coin unit (44), an indicator (24), an input keyboard (28) and at least one loudspeaker (32). The juke box is connected to a central music store (10) via a remote data taransmission line (16) whereby the remote data transmission line (16) is suitable for transmitting tonal information and is preferably an ISDN line, and the juke box (4) has digital/analog converters and amplifiers for tonal information transmitted via the remote data transmission line (16). It is also possible to transmit image information to juke boxes fitted with a screen unit so that, for example, sound films may be reproduced.
Patent DE-4023060-A1 (DE)
Inventor: FRANK WOLFGANG DIPL ING
IPC: C10J3/84
Filed: 1990-07-20
Abstract: The process gases are passed into a steady-speed fluidised bed designed as an annular trough and fitted with cooling elements. Fluidising gas is passed into the fluidised bed through the inflow tray of the trough. The process gas is introduced through the central orifice of the fluidised bed. Cooled solid flows out of the fluidised bed over the inner rim of the trough into the process gas stream and is carried along by the latter into the dust chamber above the surface of the fluidised bed. The solid deposited in the dust chamber drops back into the annular fluidised bed, and the cooled gas containing the residual solid is passed into a gas cooler fitted with cooling surfaces. The gas emanating from the upper part of the gas cooler is passed into a dust precipitator, and the precipitated solid is recycled into the steady-speed fluidised bed. 
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Patent DE-4031624-A1 (DE)
Title: Optical polarisation-diversity homodyne receiver with local laser - incorporates two homodyne reception branches with frequency regulated by threshold logic selecting branch with stronger signal
Inventor: NEIDLINGER STEPHAN DIPL ING
IPC: H04B10/61
Filed: 1990-10-05
Abstract: Polarisation beamsplitters (PS1,PS2) in the optical signal (SE) and local laser (LL) channels are associated with acousto-optical modulators (AOM1,AOM2) and 3 dB couplers (K1,K2) feeding p-i-n diode pairs (D1,D2;D3,D4) followed by photocurrent amplifiers (FV1,FV2). High-pass filtered components are multiplied (M1,M2) by coeffts. from peak rectifier-digitisers and threshold logic (BG1,BG2). Low-pass filtered components are amplified (VCA) and switched (S1-S3) into phase-locked loops (PLL) for modulator control based on the stronger of the two inputs. ADVANTAGES - Local laser frequency and phase control instabilities with weak input signals are prevented, and oscillation time is shortened with less tringent demands on loop gain.
Patent DE-4036377-A1 (DE)
Title: Fuel charging device for steam boiler - has screw conveyor which can handle wet muddy lumps of coal
Inventor: TESKE LOTHAR DIPL ING
IPC: F23G5/44
Filed: 1990-11-15
Abstract: The device is for charging the combustion chamber of a steam boiler with lumps of wet coal, especially coal covered with mud. The combustion chamber is charged through a duct (3) of circular cross-section which extends outwards from the combustion chamber wall at an angle to the chamber wall (1). This duct (3) has a charging opening (4) in its side wall and a screw conveyor (5) is fitted inside the duct (3). This conveyor is driven by a shaft from a motor (6) which is mounted in a housing attached to the upper end of the duct (3). USE - Charging steam boilers with wet solid fuel.
Patent DE-4038427-A1 (DE)
Title: Trolley for medical appts. used in intensive care - has H-shaped body comprising two parallel tubes, joined to one another via claw-type fixtures
Inventor: KUCKUK ROLF
IPC: A61G12/00
Filed: 1990-12-01
Abstract: The trolley consists of a movable H-shaped basic body comprising two parallel tubes (1), joined to one another via claw-type fixtures (3) to a cross tube (2). At their ends wheels (4) are fitted, again by use of claw-type fixtures, and capable of moving in any direction. By using further claw-type fixtures (3) at one side on the ends of the parallel tubes is fitted a frame bearer consisting of two vertical tubes (5). The tubes of this frame bearer can be provided in varying lengths, i.e. via telescopic sections, in order to incorporate requisite holders (9) e.g. for infusion bottles. A height-variable cross union (6) consisting of at least two tubes and claw-type fixtures between the frame tubes provides stability for the frame bearer. USE/ADVANTAGE - In intensive care wards of hospitals, as a trolley accommodating all requisite appts. and instruments, and adaptable to any kind of sick bed.
Patent DE-4039019-A1 (DE)
Inventor: DREYER KLAUS DR RER NAT
IPC: C04B35/10
Filed: 1990-12-07
Abstract: The invention concerns a fibre-reinforced ceramic composite body based on Al2O3, a process for making it and a use therefor. To improve the mechanical properties like the bending strength, the fracture toughness the temperature fluctuation and high temperature resistance and corrosion resistance, it is proposed to add 0.05 to 2 % mass of one or more noble metals. The ceramic composite body is made by a combined sintering and hot-isostatic pressing process performed in one heating stage without intermediate cooling. Special fields of use for the ceramic composite bodies are in automobile production, gas turbines and cutting materials.
Patent DE-4041807-A1 (DE)
Title: High pressure hydraulic pump e.g. for water milling - has single valve plate with diaphragm-limiting surfaces at each end
Inventor: EICKMANN KARL
IPC: F04B43/067
Filed: 1990-12-27
Abstract: The high pressure pump has the central valve plate (27) with a diaphragm support surface on each side. Two diaphragms (1, 2) are operated by drive pistons to provide the pump action with inlet- and outlet- valves in the valve plate. The inlet- and outlet- valves can be removed inside combined mountings for rapid replacement. The central plate is clamped between two outer pressure flanges (28, 29) for access to the diaphragms. The valves comprise separate valves as well as combining valves and do not require separate lubrication. The valve mountings are located into the valve plate via conical sealing surfaces. USE/ADVANTAGE - High pressure water milling. Simple access to replace valve, not affected by debris in fluid.
Patent DE-4101556-A1 (DE)
Inventor: MAYER HANS-RAINER DR ING
IPC: H03G1/00
Filed: 1991-01-21
Abstract: High-impedance optoelectronic receiver with a p-i-n photo-diode (1) biased in the non-conducting direction and an RC network (2, 3), whose signals are sent to an amplifier (4). In order to eliminate interference signals, a regulated current source is provided, which compensates the direct current produced at the phto-diode (1) by interfering radiation. The current and source can be an optoelectronic coupler (7, 8) and the regulator (6) a PI-regulator (12). The receiver is highly sensitive, functions linearly even at high levels of constant light and can easily be miniaturised. Can be used as receiver for laser telemeters.
Patent DE-4101977-A1 (DE)
Title: Locking device for seat belt tensioner - makes use of sliding carriage to engage toothed rails
Inventor: SPECHT MARTIN DIPL ING
IPC: B60R22/195
Filed: 1991-01-24
Abstract: The return motion locking device (1) is for a vehicle seat belt. It has a bar (4) formed as a sliding carriage on a rail (5,6) with teeth (8,9). The bar is joined to the seat belt lock (2) via a rigid, extended connecting piece (10) and a spring loaded latch engages the teeth of the rails as the cable (15) is pulled in a given direction (R). USE/ADVANTAGE - Belt tensioning system having a locking device of simple construction.
Patent DE-4106470-A1 (DE)
Title: Sensor using Hall effect - has measuring transducer in magnetic circuit consisting of two flux conductive pieces opposite permanent magnet
Inventor: SHINJO IZURU
IPC: G01D5/14
Filed: 1991-02-28
Abstract: Two flux conductive pieces (21b) form a magnetic circuit inside a housing (20) accommodating a permanent magnet. A Hall measuring transducer (24) in the magnetic circuit faces the magnet and is mounted on a disc (23). An air gap is created between the magnet and the transducer. A magnetic flux interrupter can move through the air gap. The resultant charge in flux can be registered by the transducer. A pressure element (30) is in the form of a mounting arm (30) for positioning the integrated Hall circuit and a pressure arm (30b) for forming a bearing bracket (30a) on the inner wall of the housing. The integrated Hall circuit, consisting of the second conductive piece (21b), the transducer and the disc, is thus held in place. USE/ADVANTAGE - Ascertaining angle setting of distributor in ignition system of i.c. engine. Hall sensor securely held in position of precise registration of crankshaft angle.
Patent DE-4106843-A1 (DE)
Inventor: KOTTWITZ BEATRIX DR
IPC: C07C303/32
Filed: 1991-03-04
Abstract: Described is a new method of preparing benzoyloxybenzenesulphonates from oxybenzenesulphonates and benzoic acid chlorides. The preparation is carried out in a solvent mixture consisting of water and an organic solvent chosen from the group comprising ethanol, isopropanol, dioxane and tetrahydrofuran. The inclusion of the organic solvent enables the end product to be isolated without difficulty and with a high degree of purity.
Patent DE-4107801-A1 (DE)
Title: Copy paper web carrier and cutter for printer or copier - has sensor for reference marks supplying signals to positioning regulator controlling motor sliding knife assembly
Inventor: KOEFFERLEIN RAINER
IPC: B26D5/06
Filed: 1991-03-11
Abstract: The knife assembly (15) has a drive unit (16). A forwarding unit (17) is also coupled to the knife assembly and is assigned a positioning motor (18) for sliding the knife assembly at right angles to the direction of movement of the copy paper web (11). A sensor (19) probes reference marks, e.g., transporting preparations on fanfold computer print-out type paper. A position regulator (22) places the knife assembly in a pressetable stipulated distance from the reference marks (20) in dependence on the sensor signals via the positioning motor. The forward unit, holding both the sensor and the knife assembly, is slidably mounted in a carrier frame. The presetting unit, consisting of a guide, a clamping screw, and an indicator, operates in dependence on the format of the paper web. ADVANTAGE - Cutter assembly is independent unit which can be exchangeably fitted in printer or copier.
Patent DE-4112420-A1 (DE)
Inventor: KEIL GEORG
IPC: B43K5/04
Filed: 1991-04-16
Abstract: Proposed is a writing implement (1) with a casing (2), a writing tip and a writing material reservoir (4) from which the writing tip (5) is supplied directly with said material. The writing material reservoir is connected in succession, by means of a capillary flow element, to a pigment supply (7) and a separate reservoir (8) for a liquid which can be fed by the capillary element (9) through the pigment supply into the writing material reservoir, thus taking up and dissolving pigment and forming the liquid writing material by mixing. The required liquid can be introduced into the liquid reservoir only if needed, and the reservoir can also be refilled.
Patent DE-4129299-A1 (DE)
Title: Fixing device for radiator - has fixed lower cleat and spring-loaded movable upper catch to secure projecting radiator bracket
Inventor: HAGEBERG THORLEIF
IPC: F24D19/02
Filed: 1991-09-03
Abstract: The fixing device (2) is for a radiator (3). It comprises a bottom cleat (17) to hold a projecting bracket (14) on the radiator (3), and an upper cleat (9) to hold a projecting bracket (4) on the radiator towards the top. The hooked catch (12) on the upper cleat (9) is movable under tension of a spring (10). The lower cleat (17) is set in a recess (15) and has a catch (6) projecting upwards and outwards from the bottom, whereas the top of the recess (8) has no obstruction and allows the top ofthe radiator bracket (14) to move into the recess (15) in order that the top bracket (4) can be pushed into the upper catch (12) against the action of a spring (10). USE/ADVANTAGE - Simplifies the fixing of the radiator.