baber/WOPTO huggingface dataset:
Patent DE-3935114-A1 (DE)
Title: Wheel head for disc brakes operating in oil bath - has two sets of spring loaded brake discs with gap in which two opposed hydraulic pistons act
Inventor: HAUPT JOSEF
IPC: B60T1/06
Filed: 1989-10-21
Abstract: The invention concerns a disc brake design for driven steerable wheels where the disc brake operates in an oil bath. The assembley consists of a housing (1) seated on axle stub (11) by bearings (35). The housing has a rear flange (13) which creates with the housing a ring-shaped cavity accommodating a stationary flange part (101). On the flange part (101) brake pistons (16,17) are fitted with brake cylinder space (181) between. Under pressure from hydraulic fluid supplied via channel (18) the two pistons move in opposite directions acting on brake discs (25-30) which are anchored to the housing (1) by toothings (23) and (30). The discs are under the action of return springs (20). USE/ADVANTAGE - Vehicle disc brake system with good cooling characteristics with no increased axial dimension in comparison with wheels without brake.
Patent DE-3939674-A1 (DE)
Inventor: LAUMEN MICHAEL
IPC: F28D7/10
Filed: 1989-11-30
Abstract: Described is a modular-design heat exchanger with at least one heat-exchange plane, each plane having a module-holder (10, 20, 30, 40, 60) which  holds a multiplicity of removeable heat-exchange modules (1, 50). Each individual heat-exchange module (1, 50) has a boundary wall (2, 52) through which the heat passes from the heat-input side of the heat exchanger to the heat-output side. Located on at least one side of the boundary wall (2, 52) is porous, permeable sintered-metal material (4, 6, 54, 56). The module holder (10, 20, 30, 40, 60), together with most of the modules (1, 50), form a heat-flow channel for the heat-input and/or the heat-output side of the heat exchanger.
Patent DE-4001873-A1 (DE)
Title: Window with combined rotating and tilting movement - can be opened from outside by wire loop
Inventor: PICHELMAIER JOHANN
IPC: E05D15/52
Filed: 1990-01-23
Abstract: A window is designed so that it can be partly opened tilting about an horizontal axis, or fully opened by swinging about a vertical axis. The window is fitted with a device which can be operated from outside and which can swing a window from its tilted position to its fully open position. The device consists of a housing (11) which can be moved from outside by means of a wire loop (12) which is fitted with a handgrip (14). When the housing is actuated it allows a spring-loaded U-shaped member (15) to swing about a roller (24) and release a catch (17) which in turn releases the window handle (10). USE - Window with combined rotating and tilting movement.
Patent DE-4009942-A1 (DE)
Title: Profile grinding of edge of plastic spectacle lens - uses dry grinding for initial shaping with wet grinding for finishing stage to give smooth surface finish
IPC: B24B27/00
Filed: 1990-03-28
Abstract: The rim of a plastic spectacle lens (10) is rough and finish ground to the required profile while dry. It is then ground wet in an additional final finishing or calibrating stage. The final finishing process can be carried out on a separate grinding wheel at high speed using a cooling fluid while the lens is being rotated. USE/ADVANTAGE - A very good surface finish can be obtd. on the lens rim.
Patent DE-4015480-A1 (DE)
Inventor: SCHMIDT KARL-HEINZ
IPC: B05B11/04
Filed: 1990-05-14
Abstract: The invention relates to a closure cap (5) having a dispensing opening (6) for containers with flexible walls, which can be pressed together by hand for the dispensing of spray product which is in connection with the dispensing opening (6) by means of a dip tube (7). Upstream of the dispensing opening (6) is an outlet valve (8), which is open when there is positive pressure in the container, whereas an air-admitting opening (9) is assigned an air-admitting valve (10), which is open when there is negative pressure in the container. By virtue of the outlet valve (8) upstream of the dispensing opening (6), the readmission of air to the container and consequently the risk of sucking in through the dispensing opening (6) substances contaminating the container content is prevented. Maintaining the quality of the spray product in the container is ensured by virtue of the air-admitting opening (9), separate from the dispensing opening (6), and the air-admitting valve (10), which opens only when there is negative pressure in the container.
Patent DE-4015542-A1 (DE)
Title: Poly(ester) carbonate mixts. with substd. co-poly-p-phenylene(s) - useful in mfr. of films, fibres, filaments and mouldings
Inventor: PAKULL RALK DIPL CHEM DR
IPC: C08L69/00
Filed: 1990-05-15
Abstract: Mixts. (I) of polycarbonates and/or polyestercarbonates with substd. co-poly-p-phenylenes based on at least two different repeat units of formula (I) are claimed: In (I) R = 1-8C alkyl, 6-14C aryl, 1-6C alkyl, COO(1-18C)alkyl and 3-10C cycloalkyl, COO(6-10C)aryl, phenoxy, 2-10C dialkyl amino, 2-16C diarylamino, diacetyl amino, formyl, cyano, -CO-(1-6C)alkyl, -CO-(6-10C)aryl, -OCO-(1-18C)alkyl, -OCO(6-10C)aryl, -CONR1R2; R1 and R2 = identical or different 1-18C alkyl, 6-10C aryl, 1-18C aryl, 1-18C alkylsulphenyl, 6-10C aryl sulphinyl and 1-18C alkyl sulphonyl; m = 1 or 2, where m = 2, both R gps. can also be -CH=CH-CH=CH-, -CH=CH-CH2-, -CH2CH2CH2CH2-, -OCH2O-, -OCH2-CH2O; n = 3-1000. The novelty is that the ratio of substd. co-poly-p-phenylene to the matrix polymer is 0.01-0.20:0.99-0.80. Also claimed is the mfr. of (I) from soln. or melt by grinding or kneading.
Patent DE-4017634-A1 (DE)
Title: Continuously welding tube from coiled strip - by passing through shaping rollers induction heaters to pre-heat butting edges and finally welding with burner
Inventor: MITANI KAZUO
IPC: B23K26/262
Filed: 1990-05-31
Abstract: Method of continuously producing welded tube consists of feeding strip (4) from a coil (1) through several shaping rolls (6,7,8) to form a tubular shape with a butting edge where the two edges of the strip meet. The edges are preheated by passing through a induction heating unit where an outer induction coil (10) and possibly an inner inductor (9) are located. The tube shape then passes to a weld burner (14) where the high energy density melt, and welds the sides. The burner is located on a line (22) joining the centre of the holding rollers (13). After welding the bead is machined (18) to smooth the surface before being drawn off by rollers (19). ADVANTAGE - Produces an excellent weld seam in material which is hard to weld such as stainless steel and Ti irrespective of whether a TiG, plasma a laser method is used. The process can be continuously carried out at high speed.
Patent DE-4020719-A1 (DE)
Title: Digital data signal transmission system - performs halving of parallel clock signal frequency before transmission
Inventor: SEITZ MARTIN DIPL ING
IPC: H04L25/08
Filed: 1990-06-29
Abstract: The transmission system allows transmission of a digital data signal (D) of given word width together with a parallel, separate sunchronous clock signal (T). The signal is transmitted as a signal with half the frequency and the same signal raster as the data signal(D). Pref., the clock signal frequency is halved at the transmission end and doubled at teh reception end via a coder (1) and a decoder respectively. ADVANTAGE - Allows max permissible transmission line length to be increased.
Patent DE-4021841-A1 (DE)
Title: Glove compartment for commercial vehicle or lorry - is adjusted automatically in dependence on position of co-drivers seat
Inventor: KLEIN MICHAEL VON
IPC: B60K37/04
Filed: 1990-07-09
Abstract: The glove compartment (1) is attached to the dashboard in front of the vehicle's co-driver seat (5, 6). The glove compartment (1) is adjusted vertically, in dependence on the position of the co-driver seat to ensure that the co-driver's foot space is not restricted. The adjustment of the glove compartment may be affected via an electric drive motor, or via a pneumatic drive, controlled by the adjustment of the seat position. ADVANTAGE - Ensures co-driver has sufficient knee space to give proper rest period.
Patent DE-4028772-A1 (DE)
Title: Suspension sorting rotor - has projecting components inserted in openings in rotor body for lightweight and low cost
Inventor: MEISENBERG RAINER
IPC: B07B1/20
Filed: 1990-09-11
Abstract: In mfg. or repair of a rotor, operating within a sieve to sort a suspension, the flow impelling components (2) have at least one projecting zone (9) and at least one mounting (4). An opening (5) is inserted in the body (1) of the rotor at the flange (3) towards the sieve. The component (2) is secured to the rotor body (1) by a shrink fit and/or an adhesive at the mounting. ADVANTAGE - Relatively light and cheap components can be used for insertion into the rotor body, so that the rotor can turn with relatively high speeds to give centrifugal accelerations at the rotor circumference of 100-200 g.
Patent DE-4029492-A1 (DE)
Title: Orthopaedic teeth movement$ -  uses alloy wire with shape memory characteristics and heated where bent
Inventor: BORCHMANN MICHAEL DR MED
IPC: A61C7/12
Filed: 1990-09-18
Abstract: Teeth or groups of teeth are moved during orthopaedic work on the jaw, using wire of alloy having shape-memory characteristics. This is inserted in the unstressed state in the orthopaedic instrument. Its bent portions are heated, causing it to attempt to return to its original shape, so exerting a relatively constant force, which can be calculated, on the teeth to bring them into the desired position. ADVANTAGE - Forces can be generated independently for individual correction movements.
Patent DE-4033455-A1 (DE)
Title: Vane type compressor for cooling systems -  comprises cast aluminium@ alloy stator ring and radially sliding vanes in polyether-ether ketone with PTFE filler
Inventor: MUSCHELKNAUTZ CLAUDIUS DIPL IN
IPC: F04C2/344
Filed: 1990-10-20
Abstract: Vane type compressor comprises an outer stator ring (10) and a rotor (11) enclosing a working area (12,13) with a radial width which varies int he direction of rotation. The rotor (11) has several vanes (20) which extend parallel to the rotor axis (16) and slide radially. A reduction in compressor wt. and operational noise isachieved, together with lower friction between the vanes (20) and the stator ring (10) by mfg. the stator ring (10) in aluminium alloy and the vanes in a carbon fibre reinforced polyether-ether ketone with a 'Teflon' (RTM) filler. USE/ADVANTAGE - The compressor is used for cooling, has low wt. with quiet operation, reduced friction between vanes and stator which increases efficiency and has a cast aluminium stator which is easier to mfr. (1/1)
Patent DE-4035405-A1 (DE)
Title: Programmable logic system with several AND-planes - has single OR-plane common to all AND-planes to provide OR-operation
Inventor: YAMAURA SHINICHI
IPC: G06F9/32
Filed: 1990-11-07
Abstract: The system has several AND-planes (8, 10), each carrying out a logic AND-operation, with input and output terminals. The AND-planes have a common OR-plane (9, 11) for a logic OR-operation, whose input terminals are coupled to the output terminals of the AND-planes. Pref. an information signal distributor (33, 4) is coupled to the AND-planes for receiving external information signals and their distribution to the plane input terminals according to a preset condition. A control timer (7) may be also coupled to AND-planes. It generates a time control signal for the synchronisation of the information signals. USE/ADVANTAGE - For data processing central office, with compact design and high speed operation.
Patent DE-4039562-A1 (DE)
Title: User facility for use by blind - allows setting of equipment to pass through delay with audio confirmation
Inventor: STAHR ROLAND
IPC: G09B21/00
Filed: 1990-12-07
Abstract: The user facility for setting the conditions of an item of equipment, such as digital clock, is suitable for use by blind persons. The system has a keyboard and a selector unit (13) that connects with a control unit (12) that has outputs to function control stages and a speech output stage. Operations entered via the keyboard are decoded and address information in memory to provide outputs. The selector facility provides a delay in transmission until a spoken statement has been made to confirm the setting. ADVANTAGE - Allows incorrect settings to be audibly stated before being accepted.
Patent DE-4040284-A1 (DE)
Title: Loading platform floor for lorry - consists of double plates with frame and interior stiffening
Inventor: HUNGER WALTER DR ING
IPC: B32B3/12
Filed: 1990-12-17
Abstract: The flat element, esp. floor or side wall, is for the platform of a lorry. It has a double wall, of outer plate (3) and inner wall (2). A glassfibre mat (8) is glued to the face of one wall. A honeycomb mat (10) fills the remaining space. A foamed material fills the cells of the honeycomb mat. A reinforcing frame (5) is located within the box (1), is formed by the plates. ADVANTAGE - Retains good appearance.
Patent DE-4100198-A1 (DE)
Title: Configurable communications interface module - has removable cassette contg. program enabling protocol changes by transfering contents to memory
Inventor: HYATT CRAIG S
IPC: G06F13/12
Filed: 1991-01-05
Abstract: The interface module connects a serial communications link to a memory programmable controller and contains a  processor (34a,b,c) which controls data transferr between the module (15) and teh link (14a,b,c) according to a defined protocol using a program stored with processor data in a first memory (32a,b,c). A cassette (20a,b) contg. the protocol program can be  removed without dismantling the module. The processor, memory and cassette are electrically connected (21,22). An arrangement (24,40) which transfers the contents of the cassette into the memory. USE/ADVANTAGE - Is configurable to exchange data with external equipment using several protocols.
Patent DE-4101046-A1 (DE)
Title: Reciprocating piston IC engine - has opposed piston cylinder arrangements with individual crank shafts
Inventor: DAU WOLFRAM ING GRAD
IPC: F02B75/06
Filed: 1991-01-16
Abstract: The IC engine has two pairs of opposed piston-cylinder arrangements, and associated crank shafts, which are revolvably connected via toothed gears.  Each arrangement (5-8) acts on an individual crank shaft (17-20). The cranks (25-28) of all shafts form a mirror-fashion configuration relative to a longitudinal centre axis (1) extending between the pairs (2,3) of piston-cylinder : arrangements, and to a transverse central axis (4), at right angles to the first.
Patent DE-4101186-A1 (DE)
Title: High pressure liq. cleaner - has electric heating elements between pressure source and cleaning jet
Inventor: LIPPUNER CHRISTIAN
IPC: B05B9/00
Filed: 1991-01-17
Abstract: High pressure cleaning fluid, e.g. water, is supplied to a cleaning lance. A servo-controlled valve regulates the fluid flow to the latter while an electric heater (11) heats the fluid to the optimum cleaning temp. The heating element (13) consists of semiconductor platelets pref. based on silicon and held between alumina substrates. The platelets are metallised on each side for electric contact and are thermally bonded to the alumina substrates to serve as a diode or simple semiconductor path. The space between the substrates is sealed with a solder ring (17). A temp. sensing diode can be incorporated inside the heater. ADVANTAGE - Compact heater, high heating rates; less cleaning chemicals required at higher temperatures.
Patent DE-4101361-A1 (DE)
Inventor: PFANDER WERNER DIPL ING
IPC: H01R13/52
Filed: 1991-01-18
Abstract: In prior art joins of this kind, the sealing compound between the parts is melted into a porous metal layer applied to the first part, or it is a fusion adhesive applied in the form of a filament or film in an annular groove in the first part, or it can be a hardening film applied while still in the viscous state to the part. The invention uses synthetic resin as the sealing compound, simplifying the production of such joins and thus reducing the cost of the end product. The preferred application of the invention is in the production of joins with electrical components such as plugs and sensors.
Patent DE-4101726-A1 (DE)
Title: Wheel hub cap for motor vehicle - hub cap is fitted upon rail bearing by housing and lock and on front face has air inlet openings
Inventor: NETO JOAO STRAPETTI
IPC: B60B7/00
Filed: 1991-01-22
Abstract: The hub cap is fitted on a ball bearing (3) by a housing (4,6) and lock, with the ball bearing seated upon the wheel hub (1). The lock is provided with an eccentric weight (8).  On its front face the hub cap has air inlet and outlet openings (9) with venturi nozzle form deflecting vanes. The hub cap is attached to the chassis of the vehicle by a cable (13) and spring (12), or retained by a magnetic field. ADVANTAGE - Wheel and brake cooling is improved.
Patent DE-4104367-A1 (DE)
Title: Colour CRT magnetic screening and mask frame mounting system
Inventor: KIM SE-JIN
IPC: H01J29/06
Filed: 1991-02-13
Abstract: The mounting system uses a number of clamping devices (1) projecting at equal spacings from the peripheral surface of the shadow mask frame (F), cooperating with corresponding planar surfaces (2) of the peripheral edge of the magnetic screening (I) for securing the latter in place. Pref. each fixing device (1) comprises a clamping tongue in the shape of a figure 7 which is cut out from the peripheral surface of the shadow mask frame (F).
Patent DE-4107774-A1 (DE)
Title: Electronic divider circuit improved by making one stage unnecessary - has decimal point control mechanism involving clocking decimal point shift register with dividend and divisor partial re-clocking numbers
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1991-03-11
Abstract: An electronic divider circuit has a decimal point control mechanism. After the dividend and divisor have been clocked into their shift registers they are partially shifted to the other ends of the registers using reclocking. The partial shifting leaves equal gaps of at least one bit from the ends of the shift registers. The result is constructed parallel-subtractively and the decimal point shift register (7) is clock-controlled with both re-clocking numbers.
Patent DE-4108749-A1 (DE)
Inventor: DANNEHL FRIEDRICH-WILHELM ING
IPC: B29C45/67
Filed: 1991-03-18
Abstract: The invention relates to a closing device (2) for an injection mould consisting of a stationary, first mould carrier (4), a second mould carrier (6) guided so as to be displaceable relative to the first mould carrier and at least one pressure medium-activatable closing cylinder arrangement (8) connected to the mould carriers (4, 6). The closing cylinder arrangement (8) is connected in an articulated manner at least to the displaceably guided second mould carrier (6). 
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Patent DE-4109992-A1 (DE)
Title: New halogenated bi:phenyl derivs. - useful as liq. crystal components
Inventor: REIFFENRATH VOLKER
IPC: C07C25/18
Filed: 1991-03-27
Abstract: Halogenated biphenyl derivs. of formula (I) are new. Q = vinyl, CHF=CH, CF2=CH, cyclopropyl or mono-, di- or trihalomethyl; n = 2-7; E = O or a direct bond; X = F, Cl, CF3, CN, OCF3 or OCHF2; Y and Z = H or F. (I) may be prepd. by standard methods, e.g. from the corresp. aldehydes by Wittig reactions opt. followed by hydrogenation. USE/ADVANTAGE - (I) are useful as components of liq. crystal media for use in electrooptic displays, esp. nematic media with positive dielectric anisotropy. They are colourless, readily miscible with other liq. crystal components, and have high positive dielectric anisotropy and low viscosity.
Patent DE-4111385-A1 (DE)
Title: Filter dust smelting with reduced electrode erosion - in which electrodes are inserted into glass from above into mixt. of dust and additives
Inventor: STENZEL OTTO DR ING
IPC: C03B5/027
Filed: 1991-04-09
Abstract: To melt filter dust, in smelting furnace fitted with glass troughs, the dust is mixed with other materials, e.g. lime, quartz sand or flue ash to be melted by electrodes in the melting bath to give a glassy material when cool. The electrodes, using AC and pref. at mains frequency are inserted into the bath from above and pref. vertically, to heat the material through direct current passage. The depth of the electrode insertion is adjustable according to the bath level and deg. of electrode wear. The bath can be cooled, pref. by water, at a level below the surface. The zone over the bath is shrouded against the ambient atmosphere by a lid-type cover. Perf. three electrodes are used, inserted into the molten bath with a small penetration depth. The parameters to control the electrode penetration depth are the electrode voltages, the electrode currents or a combination of voltage and current. ADVANTAGE - The method reduces the problems of material in glass bath furnaces, reduces the strong electrode erosion and dust development, and also cuts heat loss. The additives can also be mixed at a higher speed
Patent DE-4111537-A1 (DE)
Title: Electrohydraulic pilot controlled four way directional hydraulic valve - ensures closed centre operation by spring action combined with spool ends that locate with stop shoulders contacting bushes
Inventor: EWALD ROLAND
IPC: F15B13/043
Filed: 1991-04-09
Abstract: A pilot controlled 4 way hydraulic valve has a main stage (14) in which a spool (30) is held in the closed centre position in the absence of control signals from the pilot valve (12). The ends of the spool (44,46) locate in guide bushes (52, 54). The spool has formed shoulders (48, 50) in contact with the bush and, under the action of spring forces (60, 62), these shoulders define the centre position. The control signals applied to the end of the spool are provided by the outputs (35, 37) of the pilot valve. The spool of the pilot is displaced by solenoid actuators (22, 24). ADVANTAGE - Improved response and reliable fail-safe centre positioning of main spool.
Patent DE-4112731-A1 (DE)
Title: Microcomputer with central unit and DMA controller -  has fault monitor which resets central unit and controller for DMA as soon as a fault is detected
Inventor: YAMASAKI TAKASHI
IPC: G06F11/00
Filed: 1991-04-18
Abstract: The microcomputer has a central unit (1), a fault monitor (4) and a direct memory access or DMA controller (2). The fault monitor monitors pulse signals from the central unit at predetermined intervals during normal operation and resets the central unit and controller for DMA as soon as a central unit fault is detected. Signals from a circuit (2a) which generates pulse signals at defined intervals during normal memory operation and the pulse signals from the central unit are passed (8a, 8b) to the monitor input (16) of the fault detector (4). USE/ADVANTAGE - Detects failure of memory controller. It is smaller, less costly and more reliable than conventional microcomputers.
Patent DE-4114232-A1 (DE)
Title: Sleeve connector for pipes - has outer seals and inner seals held in position by holder extending into gap between pipe ends
Inventor: CORDEL HILARIUS
IPC: F16L21/02
Filed: 1991-04-26
Abstract: A sleeve connector for pipes comprises an outer sleeve (30) attached to the end of one of the pipe (10) ends and slips over the end of the adjacent pipe (20). One or more seals (35) are positioned between the inner surface of the sleeve (30) and the tapering surface (21) of the connecting tube (20) end. An inner seal (40) in the gap (15) between the opposing pipe end faces (12, 22) is retained by a holder (50) which extends from the pipe ends (12, 22) into the gap (15) and is located between the seal (40) and pipe bore. The holder (50) can be of PVC, polymer concrete, or metal. USE/ADVANTAGE - The connector is used to connect pipes pushed forward into each other and has improved sealing on the inner face.