baber/WOPTO huggingface dataset:
Patent DE-4010547-A1 (DE)
Title: Housing for preloaded spring for automatic brake - has hydraulic equipment which can be removed without unloading spring
Inventor: HABERLAND WILHELM
IPC: B60T13/22
Filed: 1990-04-02
Abstract: The mechanism, such as a brake, is actuated by a pre-loaded spring (7). The pre-loaded spring (7) is held in compression in a housing (1) by means of an end cover (1') which is retained by a spring ring (4). When the spring (7) and its housing are installed in the brake, the spring (7) is further compressed by applying hydraulic pressure to the piston (11). The components (19,11,18,46,47,32), which form part of the hydraulic circuit for applying the  hydraulic pressure, are installed inside the inner housing (5) which is fitted inside the spring (7). These components can thus be removed for inspection or maintenance purposes, without unloading the spring (7). USE - Pre-loaded springs for brakes.
Patent DE-4018924-A1 (DE)
Inventor: HUGO FRANZ
IPC: B22D27/04
Filed: 1990-06-13
Abstract: The invention relates to a process for the production of directionally solidified or crystallised castings with at least one sensor for recording temperatures in metal or alloy melts in a casting mould, with a thermocouple (41) provided with a heat-resistant sheath surrounding the thermocouple, the thermocouple being introduced into the melt. The position of the phase boundary between the liquidus and the solidus is then determined from the measured temperatures by interpolation and the withdrawal rate of the casting is controlled in such a way that the phase boundary during the withdrawal of the casting remains at all times in the desired region of the insulation (10), somewhat above the cooling head (14). For this purpose, it is advantageous if the heating temperature for heating the casting mould is stored as a parameter in a computer against the travel or the particular position of the casting mould in the vacuum furnace (T C DEG f (travel of the casting mould)). This heating-temperature profile as a function of the particular position of the casting mould in the vacuum furnace in conjunction with the withdrawal rate from the casting mould is then available in conjunction with the withdrawal-rate profile as a reproducible variable for subsequent casting operations. <IMAGE>
Patent DE-4021251-A1 (DE)
Title: Multiprocessor system with high speed data exchange - has address generator combining offset register values with bus address values, requires no data communications software
Inventor: MURAMATSU KIKUO
IPC: G06F15/16
Filed: 1990-07-04
Abstract: A multiprocessor system contains two microcomputers (1,9), each with a central processing unit or CPU (2,10) and a memory (4,12), address and data busses (18-20) connecting the microcomputers, a third memory (14) with a dual port inside the second microcomputer, an offset register (22) and address generator (21). The second CPU sets a defined value in the offset register. The address generator combines offset register values with address values from the address bus to form addresses for delivery to the third memory. USE/ADVANTAGE - For vertical transmission. Multiprocessor system with high speed data exchange between microcomputers requires no data communications software and/or enables simple microcomputer connection and disconnection.
Patent DE-4022606-A1 (DE)
Inventor: CHRIST CLAUS PETER
IPC: A61B5/0496
Filed: 1990-07-16
Abstract: A device for examining eye movements of a patient has a recorder (28) that records the signals from at least two sensors (9), in particular the output signals from conductive electrodes (9) which are put into contact with the skin of the patient in the region of the eyes. A holding device (1) placed on the head of the patient has the sensors (9) integrated in predetermined positions, so that their contact with the skin after the device is placed on the head is ensured. The advantage of the invention resides in the fact that it is not necessary to locate the sensors (9) individually on the head. They are located all together at their predetermined positions when the holding frame (1) is placed on the head. Fastening by means of the holding frame (1) prevents them from sliding or slipping away when the patient begins to perspire.
Patent DE-4024338-A1 (DE)
Title: Medical instrument removing constriction in blood vessel - has ceramic head at end of optical fibre heated by laser light from source at other end
Inventor: MACLEOD JOHN
IPC: A61B18/28
Filed: 1990-07-31
Abstract: A catheter (1,3,4,5) is used with an optical fibre (1) to which a laser light source (2) can be connected at one end. A ceramic head (3) at the other end is heated by the laser light to remove the tissue causing the restriction in the blood vessel. The ceramic head can be joined to the optical fibre by an adhesive (4) mixed with material that absorbs laser light to convert it to heat. Pref. a coating (5) of smooth plastics material covers the head to enable it to slide more easily. ADVANTAGE - Removes tissue causing obstruction so that vessel is left permanently widened.
Patent DE-4028276-A1 (DE)
Title: Reusable box for posting items - constructed from single piece of durable foldable material and has front label frame and adhesive label seal
Inventor: GRAFFUNDER WALTER W DIPL ING
IPC: B65D5/42
Filed: 1990-09-06
Abstract: A reusable box for posting items is constructed from a single, pre-shaped section of falt, foldable and durable material e.g. polypropylene or impregnated cardboard. On the front side of the box (1) is a frame (2) which is only open towards the inside and accepts an interchangeable label. Closure of the box (1) is achieved by flaps which interlock with each other and also by an adhesive label (3) which can be marked or coded according to needs. USE/ADVANTAGE - The box can be used to send a variety of objects, is reusable, light, stable and can be repeatedly opened and closed without damage. (8pp Dwg.No.1/4)
Patent DE-4030176-A1 (DE)
Title: Calibrating dental crown machining tool for start position -  detecting start from change in sound generated from surface when touched by conversion to electrical signal
Inventor: RUSS ALEXANDER DIPL ING
IPC: B24B47/22
Filed: 1990-09-24
Abstract: The blank of ceramic (8) to be used as the basis of the dental crown is held in a spindle assembly and operated upon by grinding polishing discs and cutters. The cutters and discs are supported on spindles and may be rotated at high speed while being fed axially. The initialisation of the positions of the discs and cutters relative to the workpiece is achieved by moving slowly to the point of contact. Sensors respond to the changes in sound generated to indicate the start position. ADVANTAGE - Accurate initialisation of system for machining.
Patent DE-4034823-A1 (DE)
Title: Prepn. of polymer contg. conjugated polyene - by polymerising per:fluoroalkyl acetylene(s) using tungsten-contg. catalyst for gas- or solvent-permeable membrane, photoresist etc.
Inventor: WERNER KONRAD VON DR
IPC: C08F38/00
Filed: 1990-11-02
Abstract: Polymerisation of substituted hydrocarbons having an acetylene gp., with tungsten-contg. catalysts to form polymers (I) with several conjugated C=C gps. is claimed. Process is carried out at 0-150 deg.C opt. in an inert solvent at atmos. pressure or the autogenous pressure of the reaction mixt. The reagents include at least one cpd. of formula (II); Rf = (opt. cyclic) 1-12C-perfluoroalkyl; n = 1-10; R1 = H, 1-4C alkyl, 2-4C beta- to omega- hydroxyalkyl, 1-4C trialkylsilyl, phenyl or naphthyl substituted with 1-3 1-4C alkyl, benzyl or Rf-(CH2)n-. - Pref., the catalyst has formula (III) or (IV); R = Cl, -CH2-C(CH3)3, -O-C(CH3)3, -S-C(CH3)3 dialkylamino or dibenzyl amino; R4 = (opt. cyclic) 1-6C alkyl, 1-3C trialkylsilyl, benzyl, phenyl, toluyl or naphthyl; L' = 1-4C trialkylphosphine, trialkyl phosphinoxide, trialkylphosphoniumchloride or tetralkylammonium chloride; R = Cl when L2 is trialkyl phosphonium or tetraalkyl ammonium chloride; S = 0 or 1; Q = Cl, Br, I; y = 4; or Q = cyclopentadienyl; y = 2; R5 = (opt. cyclic) 1-6C alkyl, phenyl, naphthyl or 1-4C dialkylamino.
Patent DE-4037071-A1 (DE)
Title: Transistorised ignition system quality testing of combustion engines - using counter of clock pulses through gate opened by threshold comparator or switching transistor collector voltage
Inventor: FRIEDRICH ULRICH
IPC: F02P17/12
Filed: 1990-11-22
Abstract: The ignition coil prim. voltage (UMP1) at the collector of the switching transistor (4) is compared (13) with a threshold voltage which, when exceeded, provides a signal (UMP4) to combinatorial logic (12) addressed also by a clock generator (15) and a flip-flop (14). The latter is triggered (UMP2) by an amplifier (16) of the voltage across a measuring resistor (10) in a circuit (7) limiting the switching transistor collector voltage. ADVANTAGE - Simple test for ignition loading utilises cessation of current in voltage-limiting branch as final criterion for interval between prim. voltage increase and spark initiation.
Patent DE-4037329-A1 (DE)
Title: Treatment of waste water from glass grinding - by passing water in periodical reversing direction across ultrafiltration membrane, recycling permeate and adding concentrate to molten glass
Inventor: FUERST PETER DIPL CHEM DR
IPC: B01D61/14
Filed: 1990-11-23
Abstract: In the treatment of waste water from glass grinding works, the water is led in a periodically reversing direction across an ultrafiltration membrane, so that it is divided into permeate which passes through the membrane and a concentrate which does not. At least 90% of the permeate is returned to the grinding works, and the concentrate is added to the molten glass during glass prodn.. The membrane is cleaned by passing an object with a rough surface, such as a sponge ball, over it. Pref. water (1) from the grinding machinery enters a holding tank (2). USE/ADVANTAGE - Used in treating waste water such as is produced in glass grinding, which typically contains particles rich in Pb and As. The water and its contaminants are fully recycled.
Patent DE-4102087-A1 (DE)
Title: Pressure regulation circuit for hydraulic pressure system - limits press regulator output signal when feed press rate exceeds threshold
Inventor: LAUSCH HORST DR ING
IPC: G05D16/20
Filed: 1991-01-24
Abstract: The circuit controls the valve (15) with an electrical control signal dependent on the difference between a demand and an actual press. value. The valve is driven by the regulator (17-20) control signal when the feed press. is below a defined value. If a signal proportional to the rate of feed press. increase exceeds a threshold value a limiting signal is generated and used to limit (25,26) the output signal of the press. regulator. USE/ADVANTAGE - For use in systems with markedly varying hydraulic vol. Circuit is developed to achieve improved and stabilised pressure regulation.
Patent DE-4102434-A1 (DE)
Title: Sterilising cabinet - using warmed vapour circulating to external hoses forming part of continuous ventilation system
Inventor: SANTASALO LAURI
IPC: A61L2/20
Filed: 1991-01-28
Abstract: Below the support structure inside a sterilisation cabinet (1) non-pressurised and with a readily opened door (3), is a receptacle, e.g., an open dish, for a sterilising medium, esp. peracetic acid, which is vapourised by the heat from an adjacent lower temp.  source (4). Air entering the cabinet from a base pipe (14) and charged with the sterilising vapour, leaves the cabinet top via a hose (6) under natural draught, or the suction applied by an external blower (13) incorporated in a continuous circulation path for the sterilising air. Vapourisation rate is controlled by the incoming air speed and supplies of sterilising medium can be continuously maintained.  An electrical bulb, hot water or small electrical resistance is sufficient to maintain the necessary vapourisation temp. at about 40 deg.C. ADVANTAGE - Steriliser, from which any gases discharged are environmentally harmless, forms part of a continuous ventilation system.
Patent DE-4105386-A1 (DE)
Title: 1,5-Naphthyridine metal complexes - for prodn. of singlet oxygen in photo-dynamic tumour therapy, or for sensitising photopolymerisation initiation and electro-photographic copier layers
Inventor: BECK WOLFGANG PROF DR
IPC: C07F15/00
Filed: 1991-02-21
Abstract: 1,5-naphthyridine metal complexes of formula (I) are new. In (I) R1 and R2= each 1-20C alkyl opt. substd. with Ph, opt. substd. Ph, naphthyl or 3-7C cycloalkyl or R1 and R2 together form 3-6C alkylene or an anellated benzo or naphtho ring which is opt. substd.; Y1 and Y2= each H or ML1L2, providing at least one of Y1 and Y2 is ML1L2; X= O or S; M= a metal of gp. IB or VIII; L1 and L2= each halogen, nitrose, 1-8C trialkyl phosphine, opt. substd. triphenyl phosphine, CN, carbonyl, cyclopentadienyl bonded via pi -electrons and opt. penta-substd. with Me, allyl bonded via pi-electrons; or L1 and L2 together form 2,2'-bipyridyl. USE/ADVANTAGE - (I) can be used to produce ringlet oxygen in the presence of oxygen, when irradiated and are therefore suitable for photodynamic therapy of tumours. (I) are readily soluble in organic solvents and can act as sensitisers for initiation of photopolymerisation, as sensitisers in electrophotographic copier layers and as redox catalysts in organic reactions. (I) are simple to prepare.
Patent DE-4105388-A1 (DE)
Inventor: BONNET WERNER
IPC: B65G21/20
Filed: 1991-02-21
Abstract: A device for grasping and transporting objects has a number of disk-shaped supports (10) assembled to form a rotating chain conveyor. Each support has at least one suction opening on its transport side. The suction opening is connected over at least part of the transport path to a stationary suction channel which can be hermetically sealed from the atmosphere. The stationary suction channel leads to a central supply unit for aspirated or compressed air. The supports are adjustably guided in guide rails which receive the edge regions of the supports parallel to the transport direction. Large suction surfaces on the supports can be obtained because the suction openings are perforations made (11) in the supports (10) and because the perforations in the supports are hermetically connected, on the side of the support opposite the transport side, to the stationary suction channel extending along the transport path.
Patent DE-4106516-A1 (DE)
Title: Homogeneous finely disperse solid prodn. from suspension - by reaction with alkaline earth oxide, aluminium alcoholate or silicate ester then complete hydration
Inventor: BOELSING FRIEDRICH PROF DR
IPC: B01F3/12
Filed: 1991-03-01
Abstract: Prodn. of homogeneous, finely-disperse solid dispersions (I) involves mechanical homogenisation of an aq. finely-disperse solid suspension (II) with an alkaline earth oxide (IIIA), Al alcoholate (IIIB) and/or silicate ester (IIIC) and then reacting the homogenisate completely, using the stoichiometric amt. of water. (II) is based on materials or natural or industrial origin, esp. clay (powder) or similar materials, spent bleaching earth or red mud. (III) is CaO, a liq. mixed alcoholate or a mixt. of commercially available silicate esters. The CaO pref. is pretreated with a reaction inhibitor, esp. a water-proofing agent, opt. added to (II). USE/ADVANTAGE - (I), in powder form, are used in agricultural or technical applications, esp. for improving and consolidating soil, isolating and embedding harmful matter and as carriers for active substances. They can be produced without great technical expenditure. In an example, 100 (wt.) pts. natural plastic clay were homogenised by kneading with 18 pts. CaO water-proofed with 1% fatty acid. Hydration, which started after ca. 5 minutes was allowed to continue outside the kneader. This gave a solid dispersion of Ca(OH)2 in clay, which was so homogeneous that the components could no longer be identified, even under the microscope.
Patent DE-4107007-A1 (DE)
Title: Watchdog system for data and address buses of data processing system - has module with memories and registers for test data and reference values for comparison
Inventor: PFATTEICHER WERNER DIPL ING
IPC: G06F11/267
Filed: 1991-03-05
Abstract: An electronic system of the type used in the control of prodn. processes has a processing unit (VE) coupled to a bus (SYB) that can be configured for serial or parallel transmissions. Also coupled to the bus are a watchdog module (VE) and a number of other units (E1,E2,E3). The watchdog contains memories (P1-P4) stoving test data. Registers (R1-R2) provide locations for obtained data. The processor can read test data and the contents of the registers and perform a comparison process to identify faults in the communication process. ADVANTAGE - Continuous monitoring of data and address bus.
Patent DE-4107084-A1 (DE)
Title: Automatic conveyor system for first and second carriers - incorporates check and transfer pieces
Inventor: MATSUMOTO HAJIME
IPC: G05B19/418
Filed: 1991-03-06
Abstract: The automatic conveyor-system has initial carriers (11, 12) for transporting the object (4) between two adjacent parts (3). It has second carriers (21, 22) transporting the object (4) between two spaced apart areas. Transfer pieces (121, 122) transfer the object (4) between the first (11, 12) and second (21, 22) carriers which are  controlled by a control. A checker checks whether the first carrier is available. USE/ADVANTAGE - The automatic conveyor system checks that the quantity of objects being transported between the interconnected parts of the system does not exceed the capacity of the system.
Patent DE-4109559-A1 (DE)
Title: Tomosynthesis system for determining two or three=dimensional data of object - has source which transmits stream of particles or wave field which penetrates object being investigated and is weakened corresp. to D=dimensional object structure
Inventor: WEISS THOMAS DIPL PHYS
IPC: G01N23/06
Filed: 1991-03-24
Abstract: A single or a two-dimensional sensor is provided for the stream of particles or the wave field, from the output signal of which an evaluation unit computes the two or three-dimensional object structure. The stream of particles or the wave field is a diverging stream or a divergent wave field. The source (3) and the object (1) are moved relative to each other in planes which are parallel to each other and to the sensor plane (2) in such a way, that the positions or the differences in position of the projections of all surfaces or vol. elements are known for all shots, and are projected on prescribed discrete sensor elements. The source and the object are moved relative to each other, on collinear straight lines, with determn. of two-dimensional data. The source and the object take N positions on parallel planes, for the resolution of M-deep layers of the object (with M equal to or less than N), with the determn. of three-dimensional data. ADVANTAGE - Facilitates unambiguous reconstruction e.g. for finite three dimensional Voxel grid from finite number of spatial projections on two-dimensional detector grid.
Patent DE-4109690-A1 (DE)
Title: Machine sorting of cut pieces of pine wood - continuously measuring moisture content, cross=section, length and wt. of each plank and using deviation as sorting parameter
Inventor: DREWNIOK KLAUS
IPC: B07C5/14
Filed: 1991-03-23
Abstract: The average wt. for the planks is calculated in advance and deviations from it are used as the parameters for the machine sorting according to quality class. USE/ADVANTAGE - Machine sorting following visual sorting for grading according to class MS17 for firmness for prodn. of laminated boards and plywood. Simple and rapid.
Patent DE-4111413-A1 (DE)
Title: Back pedal rim brake for bicycle with derailleur - has special freewheel on sprocket wheel, and connected sleeve, to transmit movement to bowden cable
IPC: B62L5/00
Filed: 1991-04-09
Abstract: To measure foreign matter in fluid, especially water, the fluid is brought into contact with a carrier gas in a reaction chamber (23) to bring the foreign matter at least partially into a gas phase. The presence of foreign matter in the gas mixt. is measured by a gas sensor (30) in the reaction chamber (23). The carrier gas is pref. introduced in the base area of the upright reaction chamber (23) where the water flows through. Sintered material (24) with fine pores, is at the base of the reaction chamber (23), and there is an outlet (25) for the water at the lower section of the chamber (23) connected to an outlet channel (26, 27) which follows an upward curve with its highest point below the level of the cover of the chamber (23). A cap (28) at the cover of the chamber (23) has a measurement channel (29) leading to a gas sensor (30), with heating for the measurement channel tube. The gas sensor (30) is within a heated housing. The reaction chamber (23) is held at a constant temp. within a temp. controlled housing (31). USE/ADVANTAGE - The system is used to monitor the presence of hydrocarbons and halogenated carbons in water to prevent environmental damage, and is also used to monitor communal and industrial waste water. The technique can detect very small concentrations of hazardous matter simply.
Patent DE-4112225-A1 (DE)
Title: Expanding dowel with slit sleeve and metal expander cone
Inventor: GERHARD ANTON
IPC: F16B13/06
Filed: 1991-04-15
Abstract: The expanding dowel consists of a sleeve along at least part of whose length is at least one slit. An expander-screw concentric with the sleeve`s centre lengthwise axis has its head on one edge of the sleeve. A sheet-metal expanding cone (3`) moves axially in the sleeve and is fixed so as not to turn on the sleeve`s insertion end opposite the edge.     The cone has an inner thread (26`) for the screw`s outer thread and a truncated cone shaped section (16`). The edges (18`, 19`) of the cone`s wall (14`) define an expansion joint (17`). Flaps or lugs (37, 38) are bent radially outwards to the axle and are joined to an expansion joint (39) to form a stop-piece (21).
Patent DE-4114465-A1 (DE)
Title: Captive coupling component for hydraulic sleeve coupling - has integral hydropneumatic unit allowing coupling under residual pressure
Inventor: WETZEL JUERGEN DIPL ING
IPC: F16L37/34
Filed: 1991-05-03
Abstract: The captive coupling component is for a hydraulic sleeve coupling, consisting of a captive coupling (2) inserted into a sleeve coupling (4). The captive coupling consists of a valve body (22) inserted with a movable fit into a valve housing (18). The captive unit has an integral hydropneumatic unit (70) operated on by the hydraulic medium, consisting of a compressible chamber (74) filled with air, and a sepg. membrane (72). USE/ADVANTAGE - System allows coupling under residual pressure and has simpler, cost effective construction.
Patent DE-4115314-A1 (DE)
Title: Motor vehicle IC engine - has telescopic dampers between road wheel linkages
Inventor: SCHAD KURT ING GRAD
IPC: B60K5/12
Filed: 1991-05-10
Abstract: The suspension for an engine in a motor vehicle has the engine and transmission (1) supported against the vehicle body (3) on rubber metal mounts (2). Telescopic struts (10) connect the engine with the primary linkage arms (7) for the road wheels (6) by elastic bearings (9). ADVANTAGE - Power suspension in which the connection points (11) on the power unit are arranged at the point of maximum vertical amplitude to give improved ride comfort.