baber/WOPTO huggingface dataset:
Patent DE-4020449-A1 (DE)
Title: Circuitry for hydraulic antilocking braking system - has servo pump controlled by short pulses with variable duty cycle
Inventor: BUSCHMANN GUNTHER
IPC: B60T8/40
Filed: 1990-06-27
Abstract: The hydraulic anti-skid brake circuit has an improved correction system for the brake pedal position. This uses short period pulses to activate the hydraulic pump (30) which feeds the brake circuits, spacing of the pulses being variable to suit the pressure demands, i.e. the amount of correction for the pedal position. The pedal position and direction of adjustment are determined by the control and the pump operated accordingly. The switching times of the control valves for the wheel brakes can be used as a measure of the fluid supply required to stabilise the pedal position. ADVANTAGE - Less pedal vibration. Improved brake control.
Patent DE-4028766-A1 (DE)
Title: Installation unit insert with base for spreading claws and screws - has holder with circular border below screw head and claw with operating shank in form of fork
Inventor: DIEGMANN ROLF DIPL ING
IPC: H02G3/18
Filed: 1990-09-11
Abstract: The edge (11) for the holder is arranged under the screw head (9) of the spreading screw (4). The spreading claw (3) is designed as a fork, which is led through a passage opening (7) of the unit insert (1), lies with one part of its fork (13) on the edge (11), whilst the fork ends support themselves under the screw head. The claws are protected against sliding out from the passage opening (7) by lateral undercuttings (6) at their fork (13) which corresp. to projections (8) at the passage opening. USE/ADVANTAGE - Installation unit insert improved so that installation of spreading claw is made easier.
Patent DE-4030005-A1 (DE)
Title: Intra=ocular lens -  has lens body connected to curved arms by radial rib
Inventor: HERMEKING HEINO DR
IPC: A61F2/16
Filed: 1990-09-21
Abstract: The intra-ocular lens has lens body (10) held in contact with the eye by two curved arms (16). These are connected to the lens body by a radial rib (12). The arms have round ends (2a) with a width greater than the main part of the arm. A hole (22) is formed in the area of the junction of the arms with the rib. This hole enables the lens to be gripped by the implantation instrument which implants the lens in the eye. USE/ADVANTAGE - Intra-ocular lens which is easily implanted in the eye.
Patent DE-4030472-A1 (DE)
Title: Ball drop tester with drop tube and pneumatic block return - has pressure relief apertures closed after impact to prevent bouncing
Inventor: SOMMER FRIEDRICH
IPC: G01N3/48
Filed: 1990-09-26
Abstract: A ball drop testing arrangement contains a test object support (2), a drop tube (4) vertically mounted above the support, a releasable upper drop block (8) holder (12) and devices for preventing multiple strikes and for returning the block to the upper position. For tubes with pneumatic block return, vents (18) prevent the build-up of press. during free fall. The vents can be closed by adjustable closure elements (26) after the block strikes the test object and before the pressure difference is generated. USE/ADVANTAGE - Improved to ensure accurate achievement of theoretical impact speed and suitability for different wts.
Patent DE-4034832-A1 (DE)
Title: Optical communications cable connection system - has stacked modules each receiving coupling field groups for different cable conductor groups
Inventor: BRULAND ALEXANDER
IPC: H04Q1/14
Filed: 1990-11-02
Abstract: The optical cable connection system allows a large number of subscribers to be coupled to the communications cable conductors (2), using plug and socket connections. The incoming optical cable conductors (2) are divided into groups associated with respective coupling field cassettes. Each is contained in one of a number of retractable modules, supported in a common housing. Each of the coupling field cassettes can be pivoted out of the respective module, in the open position ofthe latter. ADVANTAGE - Allows easy assembly and maintenance.
Patent DE-4035534-A1 (DE)
Title: Prodn. of high strength pump rotor - by roller pressing fibre mat plus hot extruded flat sheet, cooling, punching out shaped discs, and hot pressing stack of discs round centre shaft
Inventor: KIRSTEN GUENTER
IPC: B29C70/46
Filed: 1990-11-08
Abstract: A pump impeller rotor is produced by cutting out discs of the required cross-section from sheets of FRP, assembling together these discs in a mould which is the negative of the rotor required, hot pressing the material in the mould, cooling and allowing it to harden. Specifically, a random fibre mat (e.g. glass, carbon, or aramid) is fed into the gap between rollers, together with an extruded thermoplastic section from a flat sheet die, so that the mat is impregnated with the polymer and compressed at the same time. The FRP formed is passed to a flat surface and set hard. It is then 1-2mm thick. This sheet is cut into the shaped discs (15a) by a punch. Each disc (15a) has the cross-section of the rotor e.g. with centre hole (18) for a shaft. A number of the punched shapes are hot pressed in the female cavity to form them into the rotor e.g. in which the punched out vanes (19) are laid spirally so as to form a screw shape. The necessary rotor shaft is placed in position beforehand in the mould. The assembly is pressed at 330 deg. C and the prod. is cooled under pressure. ADVANTAGE - The products have extremely high and uniform mechanical strength. (3/3)
Patent DE-4039342-A1 (DE)
Title: Medical stereo-microscope - is mounted on base having parallelogram linkage with adjusting screw
Inventor: SCHROETER HORST DIPL ING
IPC: G02B21/24
Filed: 1990-12-10
Abstract: The stereo-microscope, for use in gynaecological examination, is provided with adjustment for the sharpness of the image. The instrument (1) is supported on two parallel links (9, 10) which are pivoted to a lever (5) which is pivoted to a base (4). The two links, the lever and the instrument itself, together form a parallelogram linkage. The angular position of the link (8) relative to the lever can be adjusted by means of a strut (7) and an adjusting nut (6) and thus the horizontal position of the instrument can be adjusted. USE - Stereo-microscopes.
Patent DE-4040414-A1 (DE)
Title: Axial needle beating with bearing thrust washers - has sleeve fitments, with cylindrical, part-circular guide surfaces, and wedge shaped surfaces
Inventor: PREMISKI VLADIMIR
IPC: F16C33/58
Filed: 1990-12-18
Abstract: The axial needle bearing with needles (3) in a needle-cage (2) has bearing thrust washers made of stamped and drawn sheet metal and which have sleeve fitments (6) concentric with each other and bent towards each other in cylindrical part-circle guide surfaces (8,9) on at least one periphery. In the middle of the part circular guide surfaces (8,9) are recesses or lugs (10) joining them into one component. Next to the recesses or lugs (10) in a peripheral direction are wedge surfaces (11,12) on the cylindrical part-circle guide surfaces (8) of the one sleeve fitment (6) of the one bearing thrust washer. The wedge surfaces (11,12) form a wedge-shaped hydrodynamic lubricating gap together with the cylindrical part-circle guide surfaces (9) on the other sleeve fitment (7) of the other bearing thrust washer. ADVANTAGE - Lubrication is improved with reduced rail lubricant flow.
Patent DE-4040897-A1 (DE)
Title: IC engine crankcase sump oil level measurement appts. esp. for vehicle - contains two or more level sesors, outside sump on centre line whose average signal is displayed when engine is switched on
Inventor: GALLERT GUSTAV
IPC: F01M11/12
Filed: 1990-12-20
Abstract: The oil level measurement arrangement contains two oil level measurement devices (6, 7) connected to the lower region of the sump via an oil line. The devices produce electrical signals corresp. to the oil level. These or their average values are fed via cables to a display device on the dashboard of a vehicle or motor boat contg. the engine. The oil level is displayed with the engine stopped. The level measurement devices are mounted outside the sump on only one side of the sump in the vehicle longitudinal direction. They are arranged at the same height and relative to each other so the extension of an imaginary line between them passes through the centre of the sump when viewed from above. USE/ADVANTAGE - Enables relatively accurate indication of oil level when ignition is switched on even when vehicle is quite markedly inclined.
Patent DE-4115668-A1 (DE)
Title: Valve pusher with hydraulic clearance compensation element - has insert covering only part of space between clearance compensation element and outer wall of pusher
Inventor: GARTNER JURIJ
IPC: F01L1/14
Filed: 1991-05-14
Abstract: The valve pusher has an insert (5) which covers only part of the space betwen the clearance compensation element (4) and outer wall (2b) of the pusher. The insert (5) has a rectangular base to match the base of the pusher. The insert is provided with a sealing protrusion lying on each wall of the pusher and has at least one leg (5c) acting as a clip to provide a positive connection. USE/ADVANTAGE - The level of hydraulic medium is high in relation to the small volume of the hydraulic chamber.
Patent DE-4116557-A1 (DE)
Title: Processing of waste paper - using recycled water from paper machine with waste water treatment system
Inventor: MAIER JOSEF
IPC: C02F1/24
Filed: 1991-05-21
Abstract: The process comprises, (a) prefloatation; (b) washing and/or thickening; (c) comminution and detachment of residual unwanted and non-fibrous components; (d) oxidative and/or reductive bleaching in the high-and/or medium- consistency region at elevated temp.; (e) removal of printing ink and other unwanted components by subsequent flotation, washing and/or thickening; (f) purificn. of the washing and/or thickening filtrates by expansion flotation (terms not defined) after adding flocculating agents; and (g) subjecting the washing and/or thickening filtrates from step (f) to further water purificn.. Pref. step (g) is effected by pptn./flocculation, adsorption, microflitration and/or ultrafiltration, opt. followed by reverse osmosis. Step (c) is effected in a dispersing machine. Step (d) is effected with peroxide, Na dithionite or formamidine sulphinic acid (FAS). When FAS is used, the FAS/alkali ratio is sufficient to give a final pH of 6.5-7.5, esp. 6.5
Patent DE-4117120-A1 (DE)
Title: Contact arrangement for electrical pushbutton switch - incorporates contact holder imparting turning force to spring leaf contact wiping switch contacts together
Inventor: MUDERS ERWIN
IPC: H01H1/18
Filed: 1991-05-25
Abstract: The switch is formed from two fixed connections (10,11), each with a fixed contact point (12,13) at one end, and a sliding bridge arrangement (14) with a contact holder (17) that extends across the gap between the two fixed contact points. The contact holder has a lowered central section (18) that extends towards, but does not entirely cover, the gap between the fixed contact points, and is fitted with a single spring leaf (20) with contact points (21,22) at both ends. As the switch is depressed, the single spring leaf bridges the gap between the two fixed contact points and starts to bend around the lowered central section of the contact holder. This imparts a turning moment to the end of the leaf, wiping the contact points together whenever the switch is operated. USE/ADVANTAGE - Wiping action reduces accumulation of dirt as well as wearing away any corrosion layers.
Patent DE-4118241-A1 (DE)
Inventor: GLASER SIEGFRIED
IPC: B32B17/10
Filed: 1991-06-04
Abstract: Method and apparatus for preparing glass panes for connecting to multiple glazing with at least one coated glass pane (9), in which method coated glass plates which are to be divided into the individual glass panes have the coating removed over a predetermined width in the areas in which the contours for separation lie, and the coating is removed by means of a grinding device (7, 8) before dividing into the individual panes, during which a cutting tool is moved along the separating contours in the areas from which the coating has been removed. <IMAGE>
Patent DE-4119415-A1 (DE)
Inventor: TERHARDT JOSEF
IPC: B01F7/16
Filed: 1991-06-13
Abstract: The description relates to a device and process for transporting and preparing cast resin or the like and for supplying a casting installation therewith, said resin's being filled and/or consisting of several components, like resin and curing agent with sedimenting fillers, in which the casting installation has several preferably evacuatable storage containers (11, 12; 40, 140) for cast resin or its components with removable covers or supply apertures, metering pumps allocated to the storage containers, the pistons of which form a valve, and drive devices for the metering pistons of the metering pumps, in which, at a first station, the container, with the valve closed, is filled with cast resin components with the cover off or via the aperture, then, with the cover or aperture closed (possibly after the generation and/or maintenance of a vacuum), optionally after a long transport and/or storage period, the cast resin or the like is proposed at a second station connected to the drive devices.
Patent DE-4129028-A1 (DE)
Title: False-twist crimping machine -  has additional conical roll to even out yarn feed tension to avoid breaks
Inventor: BAUER KARL DR ING
IPC: B65H59/18
Filed: 1991-08-31
Abstract: A false-twist crimping machine for synthetic yarn has a supply creel, guides and feed rolls, with texturising and crimping equipment prior to winding. In advance of the initial feed rolls, a further driven roll is introduced, by means of which a loop around the surface construction, at a precise angle, reduces the tension on the smooth yarn. ADVANTAGE - Reduces the possibility of yarn breakage, particularly when changing over from the first reel to the reserve reel on the supply creel.
Patent DE-4131489-A1 (DE)
Title: Warp winding giving repair to yarn break - has rods to take up slack when beam reversed to repair yarn break and maintain tension
Inventor: RUETTEN KLAUS
IPC: D02H13/02
Filed: 1991-09-21
Abstract: To wind yarn on a warping beam, drawn from a creel, holding rods (20) are set by a motor system to take up the slack in the wards on a stoppage as they are clamped at the creel and the beam is reversed to slacken the warps for a break to be repaired. The operation of the motor for the rods (20) and the warp beam (12) is synchronised according to an adjustable yarn draw tension. Before the warps are held by the rods (20) in the holding direction (21), the band of warps (14) moves from the creel (11) to the warp winder (13) without contact. ADVANTAGE - The action gives repair to a yarn break while maintaining warp yarn tension, especially when warping cotton yarns at high speeds.
Patent DE-4131745-A1 (DE)
Title: Rapier loom - has motor driven rapiers mounted in synchronisation with the main shaft
Inventor: BUEHRING LOTHAR
IPC: D03D47/27
Filed: 1991-09-24
Abstract: On a rapier loom the drive for the grippers has motors mounted on the slay, with shafts activating the slotted rapier bands. The timing of the rapier movement depends on the loomshaft angle, which is relayed through a monitor, with feedback from the motor shafts and rapier position. The swords of the slay (2) are mounted on the rocker shaft (1), with motors (15) at each side, under the race (3). The motor shafts (11) have toothed discs (12) for each of the slotted bands (13,14) which have a weft gripper head (7,8) at each side for each shed of the double fabric. The pile between is cut to form two rolls of carpet. The rapiers run in the guides (5,6). ADVANTAGE - The rapier drive is simplified and controlled in an economical manner.
Patent DE-4136397-A1 (DE)
Title: Bobbin winding sleeve prepn. - has angle sensor cam assemblies to advance and bring to bear the cutting and furrowing discs to form cuts to catch the yarn end
Inventor: CASAROTTO GIAMPAOLO
IPC: B65H75/28
Filed: 1991-11-05
Abstract: The appts. to prepare cardboard winding sleeves, to be wound with yarn, cuts a wide and narrow recess in the end to catch the end of the yarn, with an angle position sensor (16) to control the movement of the cutting blade (6) and an angle sensor (13) to control the operation of a furrowing disc (8). The angle position sensor (13) for the furrowing disc (8) has several base sensors (13a,13b) on the same shaft (12), which rotate alternately and independently to give a variable and adjustable response curve. The whole unit (14) is controlled by the second sensor (13) through a tracker (15) which responds to the curve contour of the second sensor (13). ADVANTAGE - The appts. can provide a wide and narrow cut in the sleeve, to catch the yarn end and then trap it for winding to start, in an automatic action, to give sleeves suitable for working with fine yarns and threads.
Patent DE-4139737-A1 (DE)
Title: Arrangement for the tempering and humidity control of air - has housing in which is arranged at least on moistened plate pack and partially immersed in liq.
IPC: F24F6/04
Filed: 1991-12-03
Abstract: Arrangement for the purificn., humidifying, dehumidifying, and cooling of air, particularly room air, having a housing (1) in which is arranged at least one moistened plate pack (2) rotating about a horizontal axis (8), and partially immersed in a liq., past which is pulled the room air to be humidified/dehumidified and purified, and being novel in that for adjustment of the air temp. the plate pack is constructed as a heat exchanger to which liquid or gaseous heat-transfer medium is circulated via connectors (7) along the horizontal axis of the plate pack. USE/ADVANTAGE - Tempering/humidity adjustment in air-conditioning for buildings, or for use as an evaporative condenser for a refrigeration compressor.
Patent DE-4143148-A1 (DE)
Title: Mfg. cellular plastics for hard foams - by reacting poly:isocyanate with cpd. contg. reactive hydrogen atoms in presence of mixt. of insol. fluorinated organic cpd. of low b.pt. and iso-alkane as blowing agent
Inventor: VOLKERT OTTO DR
IPC: C08J9/14
Filed: 1991-12-28
Abstract: The plastics (I) are prepd. by reacting (A) organic and/or modified organic polyisocyanate with (B) at least one higher mol. cpd. having 2 or more reactive H atoms, and opt. (C) low mol. chain lengthening agent and/or crosslinking agent in presence of (D) as blowing agent mixt. of (D1) at least one low boiling fluorinated or perfluorinated organic cpd. difficulty soluble or insol. in (A), (B) or (C) and (D2) at least one 6-12C isoalkane, (E) catalyst, and (F) auxilliaries and/or additives. USE/ADVANTAGE - Partic. prodn. of hard foams contg. urethane, and opt. isocyanurate gps. e.g. cellular elastomers in motor car industry for head rests, inner cladding, or exterior parts such as rear spoilers, also shoe soles, soft elastic, semihard or hard foams in motor car, aircraft, shipbuilding, furniture and sports article industries for upholstery materials, housings, ski cores etc. and partic. insulating materials for buildings and refrigeration. Fluorochlorohydrocarbons as blowing agents are at least partly replaced by environmentally friendly agents without negatively affecting fine cell foam structure obtainable using emulsions based on the fluorohydrocarbons, processability is extended and sensitivity to various kinds of foaming appts. is minimised, thermal conductivity (partic. of urethane gp-contg. hard foams) is reduce
Patent DE-4201413-A1 (DE)
Title: Braid making machinery mfr. for seals and packings - has yarn spools moving independently or left stationary to allow other spools to twist round them
Inventor: WULFHORST BURKHARD PROF DR ING
IPC: D04C1/00
Filed: 1992-01-21
Abstract: A process to mfr. three dimensional flexible braid with diverse cross-sectional geometry. The yarn spools are moved independently, or may be left stationary for a time to allow other spools to twist around them to form the braid. The three dimensional packing is formed by interlocking the yarns at the correct angle and sequence. They are compressed by equipment beneath the packing which forms the yarn to shape, bringing it as from a spherical position. USE - To make a braid with a three dimensional cross-section, in addition to the usual tubular, round or flat braids which are used as packings and sealings
Patent DE-4202915-A1 (DE)
Title: Food portion insert mechanism into packaging container - has temporary deposition shelf unit between feed and packaging machine
Inventor: VOGOGNA ENRICO
IPC: B65B5/10
Filed: 1992-02-01
Abstract: The prod.(6) is set down on the shelf unit (10) which can be moved across the transport direction (arrow 7) of the supply belt (3). The prod.is then inserted into the packaging mould (37) of the packaging machine. The shelf unit can have a slide carriage (20) which is displaceably guided in the locally fixed guide rails. The drive for the slide carriage comprises a toothed belt driven by a motor in the direction of displacement. The shelf unit can have two independently movable slide carriages displaceable in the X and Y directions. USE/ADVANTAGE - For food portion packaging installation,with low-cost design and precise insertion.
Patent DE-4202991-A1 (DE)
Title: Tuning technology in high frequency and microwave range - is applicable to amplifiers, filters and other resonant circuits tuned by selective breakage of wire bonds
Inventor: HOFFMANN GUENTER
IPC: H05K1/02
Filed: 1992-02-03
Abstract: On a printed circuit board the Cu strip line conductors (1) are joined together by redundant parallel wire bonds (2) so that the frequency response shows a relatively flat curve in the vicinity of the working frequency. Such a circuit is fine-tuned by selective plucking of the redundant wire bonds until the frequency response shows the desired deg. of sharpness of a peak at the frequency of resonance. ADVANTAGE - Selective tuning is possible within wide frequency range easily and at low cost, with component and material tolerances either taken up completely or reduced to desired level.
Patent DE-4205930-A1 (DE)
Title: Relief valve for Diesel injection system - has valve body, shaped to form narrow gap with valve carrier, gap opens into valve chamber
Inventor: SCHAFFITZ WOLFGANG DR ING
IPC: F02B3/06
Filed: 1992-02-26
Abstract: The nonreturn valve is located between pump chamber and injection tube of a fuel injection system. It has a flat or conical valve seat (8), a return spring, and a relief piston, which moves into the guide for the nonreturn valve. The valve body (3) directly behind the valve seat is shaped, so that it forms a very narrow gap (14) with the valve carrier (2), when the valve is closed. The gap opens into the valve chamber, and fuel flows through it in direction of feed, when the valve is open. The valve consists of top and bottom sections (15,20), with an intermediate valve spring. USE/ADVANTAGE  - Relief valve for Diesel injection system prevents damage to valve seat due to hollow space implosions.
Patent DE-4207530-A1 (DE)
Title: Drive chain tension measurement appts. - contains pressure measurement element on gear wheel in gear box, non-removable chain wheel bearing
Inventor: MERTENS WILFRIED
IPC: E21C29/14
Filed: 1992-03-10
Abstract: The appts. contains a chain wheel in a gear box whose shaft is borne by a housing formed by a gear or blind bearing housing removably attached to the gear box (5).  The chain tension is measured by at least one measurement element (23) mounted on the gear wheel. The measurement element is mounted outside the bearing housing on the periphery of an aperture (14) through which the chain runs.  The bearing housing is directly or indirectly in contact with a housing part in the aperture. USE/ADVANTAGE - For reliable measurement of chain tension with reduced cost, esp. without using removable chain wheel shaft bearing. Easy to assemble and maintain.