baber/WOPTO huggingface dataset:
Patent DE-4012499-A1 (DE)
Title: Scavenging of two-stroke IC engine - by pump and two synchronised rotary valves
Inventor: KRUEGER HERMANN DR
IPC: F01L7/12
Filed: 1990-04-19
Abstract: A two-stroke internal combustion engine has a duct (2) fitted with a throttle valve (3) through which fresh gas is supplied to the engine. The duct (2) is connected to the inlet side of a pump (5) which has its delivery side connected to a rotary valve (6) which is in turn connected to the engine cylinder (1). The valve (6) is rotated so that for part of each rotation, the cylinder (1) is connected to the delivery side of the pump (5) and for part of the time the cylinder (1) is connected to the suction side of the pump (5). A second rotary valve (10) controls the flow of exhaust gas from the engine. The valves (6) and (10) are synchronised with the engine crankshaft. USE/ADVANTAGE - Effective scavenging of the engine cylinder.
Patent DE-4014067-A1 (DE)
Title: Centralising system for sieve cages in screw-press - has screw cage with wide tolerance range and screw mfd. to fine tolerances, with centralising adjustment by radial screws
Inventor: EICHLER DIETRICH DR
IPC: B30B9/12
Filed: 1990-05-02
Abstract: System for centralising a sieve cage in a screw press has the smallest possible annular gap between the screw and the sieve cage. The sieve cage is centralised by lockable adjustment scres, the facility being possible because the sieve cage has a wide tolerance range in the axial direction to the housing and also to the flange of the mouthpiece and is not clamped in this direction. During prodn. of the screw press the sieve cage dia. is measured and the outer dia. of the screw is produced to a fine tolerance to ensure a narrow gap. USE/ADVANTAGE - The system is used to centralise a sieve cage in a screw press, gives the lowest possible gap between screw and sieve cage and is achieved without a redn. of normal prodn. tolerances.
Patent DE-4015378-A1 (DE)
Inventor: WILK HANS-ERICH DIPL CHEM DR
IPC: G01N33/543
Filed: 1990-05-14
Abstract: Test support for the analytical determination of a component in a sample fluid with the aid of a specific binding reaction of two bioaffinity binding partners. A plurality of test layers is arranged so that they are successively wetted by the fluid and form a fluid transport pathway, where one of the test layers is a fixing layer (18) which has a porous support matrix. The first of the two binding partners is fixed on the latter. The fluid which contains the second binding partner flows through the fixing layer (18), at right angles to its surface, on the test support (10). 
<??>A substantially complete binding reaction in an extremely short time is achieved on flowing through the preferably very thin fixing layer (18) in that a microporous synthetic layer with a pore size P of at least 0.01  mu m is used as support matrix, with, at the same time, the size D of the second binding partner and the pore size P of the synthetic layer being mutually adjusted so that the pore size P is at least two and no more than ten times as large as the size D of the second binding partner. 
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Patent DE-4033444-A1 (DE)
Title: Overcurrent protection for network fed from emergency supply - has shunt for measuring current through fuse link, and breaks circuit by controlled semiconductor switch operation
Inventor: APELT OTTOMAR DIPL ING
IPC: H02H3/00
Filed: 1990-10-20
Abstract: Load current (12) flows through a thyristor (8a) in series with the fuse link (5) until interrupted by a comparator (7) relating an externally defined max. current (Isoll) to the actual current measured by a shunt (6) across the fuse (5). The shunt (6), the comparator (7) and the thyristor (8a) or a triac equivalent can be combined into a structural unit whose geometrical dimensions conform to those of a standard fuse. Energy for the measurement may be supplied by a battery or capacitor. ADVANTAGE - Safe disconnection of faulty loads is achievable without difficulty even with low short-circuit currents.
Patent DE-4036865-A1 (DE)
Title: Flame prevention in resin bonded wall cladding - by blocking vertical airflow in airgap behind cellulose fibre panel across horizontal width
Inventor: AKKER JOHANNES W VAN DEN
IPC: E04F13/00
Filed: 1990-11-19
Abstract: Panels have a ventilation gap between themselves and the wall and during a fire the air gap is blocked off horizontally by an incombustible material when the temp. reaches a specified pt. The blockage shuts off airflow in a vertical direction at point(s) across the horizontal width of the cladding panel and increases the flue effect of the ventilation which restricts the spread of flames. USE/ADVANTAGE - Used for impregnated cellulose fibre panels, e.g. 'Trespa Volkern SE' while retaining adequate airflow between the panels and the wall. (Dwg.1/4)
Patent DE-4039068-A1 (DE)
Title: Processing filters contg. e.g. heavy metals - by submerging filter and mechanically or ultrasonically treating while contaminants are removed by suitable precipitating agent
Inventor: BLOSS WOLFGANG DR
IPC: A62D3/33
Filed: 1990-12-07
Abstract: Filter or its components are wetted and the substances are pptd. using a suitable pptg. agent before the filter is returned to service. Procedure is carried out while the filter is entirely submerged in water. Filter may be subjected to a mechanical or an ultrasonic treatment while it is in the water. Mechanical treatment may consist of tilting, pushing, moving and/or rotating. Ppte. is collected and removed from below the filter from time to time. Additive such as tenside may be used to reduce the surface tension of the water. Ppte. medium is pref. a sulphur-based substance. Filter (22) is pref. placed in a liq.-filled container (10) provided with a system (12, 26, 24) for collecting and removing the pptn. prods. Adjustable device (20) supports the filter in the liq. (14). Container has a sloping floor (12) with a ppte. removal device at its lowest point. Floor may be an intermediate floor with a closable outlet for the liq. and below which is a filter device (28). Device (32) returns the filtered liq. to the container (10). Source of ultrasound may be directed at the filter (22). USE/ADVANTAGE - Used in cleaning filter cartridges which contain particles of dangerous substances e.g. heavy metals. Heavy metals are easily, safely and reliably removed and collected with a high proportion of recovered for further use. Filter cartridges are not damaged and are returned to service after a short time.
Patent DE-4100030-A1 (DE)
Title: Automatic flashing warning lamp installation for motor vehicle - alerts following driver to operation of brakes with travel or force in excess of predetermined amt.
Inventor: JANIA BODO
IPC: B60Q1/44
Filed: 1991-01-03
Abstract: A special switch (23) associated with an accelerometer (23a) is coupled mechanically or hydraulically to the brake master cylinder, and wired (16) to additional warning lamps (17,18) in the offside and nearside rear lamp clusters. Closure of the switch (23) energises a line (27) to a relay (14) via a time-constant circuit causing the lamps (17,18) to flash for a predetermined time and give warning of a full brake application to the driver of a vehicle following. The flashing duration may be adjustable. ADVANTAGE - Earlier warning of impending collision is given to following fast-moving vehicle.
Patent DE-4101952-A1 (DE)
Title: Test tube and pipette for centrifuging liq. samples - has tube of reduced diameter at short distance above lower end which retains liq. contg. solid particles after centrifuging
Inventor: NIESSNER HARRY
IPC: B01L3/02
Filed: 1991-01-19
Abstract: Test tube (12) for centrifuging liqs. is provided with a region of reduced dia. at a short distance above its closed lower end. This may take the form of a narrow section (20) between the cylindrical part (14) of the tube and its closed lower end. The reduced dia. is such that liq. below this level is held by its surface tension and does not flow out when the tube is tilted. The upper end of the test tube has a conical filling section (16). The reduced dia. may be provided by a pinching in (22) of the tube, or by an insert glued or welded to the inside of the tube. USE/ADVANTAGE - Used for holding samples of liqs. contg. solid particles which are to be centrifuged, such as urine samples. The volume of liq. in which the suspended solids are contained after centrifuging is accurately retained in the tube in a simple manner and without the need for careful handling by the laboratory personnel.
Patent DE-4105518-A1 (DE)
Inventor: MAYER HORST DR
IPC: C07D239/52
Filed: 1991-02-22
Abstract: The invention concerns sulfonyl urea derivatives of formula (I), wherein R<1> stands for optionally substituted alkyl or phenyl; alkenyl or propargyl; alkylamino or dialkylamino; R<2> stands for hydrogen, halogen, optionally halogen-substituted methyl, methoxy or ethoxy, an alklylsulfonyl group, nitro or cyano; R<3> stands for difluoromethoxy, trifluoromethoxy, bromodifluoromethoxy, chlorodifluoromethoxy or fluorine; R<4> stands for halogen, optionally halogen-substituted methyl, ethyl, methoxy or ethoxy or the methylamino or dimethylamino group; R<5> stands for hydrogen, alkyl, alkenyl or an alkinyl; Z stands for CH or N, provided that a) if R<3> stands for the difluoromethoxy group, R<1> does not stand for a di(alkyl)amino group, R<2> does not stand for an alkylsulfonyl group, and R<4> does not stand for a methyl or methoxy group, b) if R<3> stands for a fluorine atom and Z stands for nitrogen, R<4> does not stand for an alkylamino group. The invention also concerns their salts. The sulfonyl urea derivatives can be used as herbicides.
Patent DE-4110443-A1 (DE)
Title: Y-tube mfg. process - involves using forming tools of bending cheek and press die in single working stage
Inventor: SENF REINHARD
IPC: B21D51/16
Filed: 1991-03-27
Abstract: The process is for manufacture of Y-tubes, which act as connection elements between two downpipes for roof drainage. A sheet metal blank is bent acc. to a template. and is then formed. The tunnel-shaped closed zinc sheet blank is guided by a main- and an auxiliary sleeve (10, 12). In one working stage, forming tools, each consisting of one bending cheek (4) and one pressing die (5), are pressed together by lever arms (9), to form the blank into a Y-tube. The pressing dies form a symmetrical web between the formed main- and side sections of the Y-tube. ADVANTAGE - Economical, simple.
Patent DE-4112012-A1 (DE)
Inventor: HETTICH VOLKER
IPC: B25F5/00
Filed: 1991-04-12
Abstract: The invention concerns a hand-held power tool in which the tool attachment is driven to rotate and in which the tool attachment is cut off from the drive if it jams suddenly. In order to detect the occurrence of a jam, the invention makes use of the gyro effect which occurs in the motor (12) which is mounted at right angles to the axis of rotation (5) of the drill (4). If the tool jams, the housing (2) rotates to the left in the direction of the arrow ( omega G,B), thus generating additional angular momentum in the motor (12), which is acting as a gyro, as well as additional forces (FK) on the bearings (16, 17). These forces are detected by sensors (20) which output a detection signal to a control unit. The control unit cuts off the drive to the drill (4).
Patent DE-4113369-A1 (DE)
Title: Garment feed to folding station
Inventor: WOLF JUERGEN
IPC: D06F95/00
Filed: 1991-04-24
Abstract: To move garments on hangers to a workstation, such as an automatic folder, certain garments are presented in alternating alignments in relation to the workstation by rotating the carrying hangers (20). After the garments have been transferred to the workstation, their empty hangers (20) are all brought into the same alignment as thehangers (20) for the garments before they are twisted for transfer.
Patent DE-4115758-A1 (DE)
Inventor: OETJEN JUERGEN
IPC: F16C33/36
Filed: 1991-05-15
Abstract: A roller screw drive has a spindle, a fixed bearing, a movable bearing and a roller screw drive movable along the spindle. The fixed bearing (2) is formed by housing (7) with a bore (8) provided with continuous grooves and by a section (9) provided with grooves (10) as well, mounted on the spindle (1). Circumferentially distributed profiled rollers (12) that engage the grooves in the bore and the section by means of an appropriate profile roll between the bore and the section. The corresponding roller screw unit forms a screw roll drive. A modular unit having only a few components with mutually adapted load capacity is thus obtained.
Patent DE-4117251-A1 (DE)
Title: Fire-extinguishing arrangement easy to transport - comprising hood made of cloth of non-flammable material fastened around rigid frame and movable on wheels
Inventor: ORTS MARK PETER
IPC: E21B33/02
Filed: 1991-05-27
Abstract: The fire-extinguishing arrangement has a hood that can be put over the seat of the fire. The hood has an area of cloth (5) made of non-flammable material fastened around a rigid frame that is square in plan view. The effective area of the cloth is larger, pref. by 20-40%, than the space enclosed by the frame. Variants include nozzles within the hood and connected as appropriate to a pressure line or a suction line, for delivering extinguishing fluid and/or removing gases and dust; the frame being able to swing about 180 deg. around a horizontal axis; the arrangement being movable on wheels; the arrangement having its own propulsion engine; provision of winches for swinging the frame and for movement and braking. The several other variants claimed include the cloth (5) being multilayer, with at least one layer being of glass fibre, or of mineral fibre, or of metal wires, and having metal foil (pref. aluminium) on one or both sides, and having at least one layer of compacted fibre material. USE/ADVANTAGE - The arrangement is easy to transport and to place in position where the fire is surrounded by obstructions which would prevent a steel bell (which requires a crane) being used.
Patent DE-4119924-A1 (DE)
Title: Protecting credit balance stored in chip=card - using certificate generated by particular party to validate balance transferred from chip=card to debit-card point
Inventor: HUESKE THOMAS
IPC: G07F7/08
Filed: 1991-06-17
Abstract: The method involves transferring a data block (DAT) from the chip card (CHK) to a credit or debit point. The data block includes a bank balance (GUT), stored in the chip card, a key (K), and a balance certificate (CER). The validity of the transferred balance is checked using the certificate. A new balance is calculated by addition or subtraction of an amount of money. Using a coding algorithm, based on a key which is valid for both parties, a new certificate (NCER) is generated. The new balance and the new certificate are stored in the chip-card. Pref. a message authentification code (MAC) is formed for each transferred data block. USE/ADVANTAGE - For payment card used for banking or as telephone card. Chipcard actively prevents manipulation, and recognises manipulation at credit/debit points.
Patent DE-4121573-A1 (DE)
Title: Gas-tight and watertight package - comprises spirally wound strips of film, opt. enclosing end cover sheets, bonded by adhesive layers
Inventor: WACKER WALTER
IPC: B65D75/00
Filed: 1991-06-29
Abstract: Arrangement for mfg. a covering for a prod. to be packaged having square, rectangular or circular cross-section, comprises two layers of film (511,521) wound (as a spiral strip) and bonded together by one or more adhesive layers. The film is pref. extensible PE (Stretch-film). The first wound layer may be of paper. The first or second layer may be replaced by a strong netting for heavy products. Each film may have on one side an adhesive layer, and the layers may be wound with these layers adjacent for improved sealing. Each layer may be wound from a strip of film with the turns overlapping. The two layers may be wound with opposite hand, giving a 'fish-bone' (diamond) pattern. The prod. end may be covered with a sheet of film (711,721), secured by the second wound layer (521) or a band of film (523). USE/ADVANTAGE - Gas- and water-tight packaging of prods. of any shape. Applicable to products of any cross-section.
Patent DE-4121715-A1 (DE)
Inventor: HARTMANN WERNER
IPC: B62K21/26
Filed: 1991-07-01
Abstract: In a grip (1) for handlebars, especially of bicycles, with a drilling (2) for fitting the grip (1) on the handlebar and a region (4) eccentric to the longitudinal axis of the drilling which widens towards the end of the handlebar, at least in partial section (6), the eccentric region (4) in the partial section (6) forms such an angle ( alpha ) with the handlebar that it is possible by turning the grip (1) about the longitudinal axis of the drilling (2) to adjust it to an individual grip angle in such a way that the rider's wrist assumes a neutral position. The outer shape of the grip (1) runs smoothly and steadily in the widening partial section (6). The grip is made of a non-deformable material so that the angle of grip is substantially constant throughout the usual shock loads.
Patent DE-4123487-A1 (DE)
Title: Welding appts. for plastic box base - has system of two split spreader rings and induction welding tool to press and weld positioned base against interior end of hollow body
Inventor: KOLB DIETER
IPC: B29C65/02
Filed: 1991-07-16
Abstract: Appts. inserts and gas-tight welds plastic or plastic-coated base pieces into plastic or plastic-coated hollow bodies, using an annular induction-welding tool and a radially spreading pressure member. This latter member is two pressure rings divided into radially moved sectors which overlap each other; the welding faces of one ring are close to those of the other ring. ADVANTAGE - The arrangement is suitable for any common size and thickness of the material in a round cylinder, e.g., a box.
Patent DE-4129152-A1 (DE)
Title: Position control for robotic working arm with damage protection for workpieces - has sensors to provide position dependent signals and to monitor pressure on tools
Inventor: FISCHER GERNOT DR ING
IPC: B25J9/16
Filed: 1991-09-02
Abstract: The robotic arm has one-or more sections and a tool holder. The tool is moved in a programmed direction to the workpiece while a sensor monitors the pressure applied by the tool on the workpiece. The sensor also provides a position control signal. The process controller moves the tool in a controlled manner to minimise damage e.g. when hitting end stops. For a multi section robotic arm every joint can be fitted with a sensor, with the signals combined in the controller. This array enables the controller to go through a teaching process to, balance the robotic arm for the processing. ADVANTAGE - Reduced damage risk to workpiece, improved quality control.
Patent DE-4202350-A1 (DE)
Title: Ejector interchange device for multiple die press - has non-movable machine ejectors
Inventor: WAGNER KARL
IPC: B21D43/05
Filed: 1992-01-29
Abstract: The device maintains the ejector function position during interchange of tool ejectors. It has a machine ejector (10) for each tool stage (1), a grab rail transporter system (26), a holder for the workpieces (14), a tool interchange frame (6), and adjusting devices for the frame. The ejectors are positioned non-movable. A frame ejector (11) of adjustable length is located between tool ejector (35) and machine ejector, and is connected to the top tool (19), in tool- and ejector interchange position. A cam drive (46) for each tool stage is located on the slide (2), to free the connection between frame ejector and top part. A precision positioner device (49) in the interchange frame, is located pivoted between top- and lower parts (20). A safety device creates conditions for tool interchange. USE - Tool change system for multiple die press.
Patent DE-4204162-A1 (DE)
Title: Arrangement for measuring concentricity of round workpieces - has support with two rollers, one or both driven and holder with idler roller pressing down on workpiece, also adjustable sensor holder
Inventor: FILIPOWITSCH JOSEF
IPC: G01B5/252
Filed: 1992-02-13
Abstract: An arrangement for measuring the concentricity of round workpieces has a support (1) with at least two support rollers, at least one being driven, and one holding idler roller for holding and rotating the workpiece. A measurement sensor holder guided and supported by parallel shafts protruding from the support has a three-dimensional adjustment arrangement and a positioning arrangement allowing sensor removal without displacement. The idler roller holder is a block (4) defining the workpiece retention force mounted on the support via a guide arrangment (5,6), so that the idler roller (7) presses on the workpiece centrally wrt. the support rollers. The block is mounted in the guide to be movable approximately perpendicularly wrt. the support roller axes. USE/ADVANTAGE - The arrangement is improved to achieve greater accuracy and accept larger workpieces.
Patent DE-4219385-A1 (DE)
Inventor: BOTT KASPAR DR
IPC: C07C259/06
Filed: 1992-06-13
Abstract: The invention concerns copolymerizable oxime ethers of generale formula (I), in which A is a bivalent link group; R<1> is a hydrogen atom or a C1 to C4 alkyl group; and R<2> and R<3>, independently of each other, may be a hydrogen atom, a C1 to C10 alkyl group, a C1 to C10 alkoxy group, a C5 to C10 cycloalkyl group or a C5 to C10 aryl group which may also contain 1 to 3 non-adjacent nitrogen, oxygen or sulphur hetero-atoms in the carbon chain or in the carbon ring and may be substituted by C1 to C4 alkyl or alkoxy groups, R<2> or R<3> may be a hydrogen atom or R<2> and R<3> together may form a bridge made up of 3 to 14 carbon atoms, in which case some of these carbon atoms may also form part of an aromatic ring.
Patent DE-4220376-A1 (DE)
Inventor: BORIANI SILVANO
IPC: B65B61/00
Filed: 1992-06-22
Abstract: The connection of two overlapping longitudinal portions (8, 9) of a tubular wrapping (2) defined by a sheet (4) of wrapping material wrapped about the product (3) inside a wrapping seat (7) is at least completed as the wrapped product (3) is unloaded from the wrapping seat (7) by a pusher (13) and heated counterpusher (14). Seat (7) is one of a number of radial seats provided in a wrapping wheel (5). The counterpusher (14) is electrically heated using a resistor (24) therein so as to heat seal the portions (8, 9) if the sheet (4) is of heat-sealable material, or to dry a layer of adhesive material between the portions (8, 9) if the sheet (4) is not heat-sealable. <IMAGE>
Patent DE-4220685-A1 (DE)
Title: Snap-action coupler for framed plastics cushion to seat - has protruding ball- or cylinder-shaped fasteners on support member, or cushion
Inventor: WUERSTL CURT
IPC: B60N2/26
Filed: 1992-06-24
Abstract: The coupler is for a support member of a seat on its backrest. Ball-shaped, or cylindrical fasteners (2) protrude from the cushion (4), or the support member (1), with corresp. snap-action couplers (3) on the other seat part. The couplers have shell- or dome-shaped depressions. The depressions match the coupler dia. and have walls deforming on connection. In connected state, the walls reliable reach beyond the fasteners. Pref. the latter are cylindrical and the couplers are shell-shaped. USE/ADVANTAGE - Snap-action coupler pref. for child's car seats, with large tolerance compensation, simple fitting and removing.