baber/WOPTO huggingface dataset:
Patent DE-3835840-A1 (DE)
Inventor: KROGGEL MATTHIAS DR
IPC: C08F8/28
Filed: 1988-10-21
Abstract: Polymers containing polyvinyl acetal groups and acetalated polyvinyl alcohol groups on polyurethane graft bases can be prepared by known methods by reacting graft polymers which contain vinyl alcohol groups on polyurethane graft bases with aldehydes. Suitable aldehydes are all known aldehydes which are capable of acetalation reactions. 
<??>The polyurethane graft bases contain at least 2 urethane groups in the molecule and units of diisocyanates and diols, and polymer radicals comprising units of vinyl carboxylates having 3 to 20 C atoms and/or hydrolysis products thereof and optionally further monomer units are grafted onto the polyurethane graft bases. A proportion of the vinyl alcohol units in the hydrolysed or partially hydrolysed graft polymers before acetalation is > 10 % by weight. 
<??>The content of residual non-acetalated vinyl alcohol units in the acetalated polymer is > 7.5 mol-%, based on the molar content (= 100 mol-%) of vinyl alcohol units in the starting graft polyvinyl alcohol before acetalation. 
<??>Use of the graft polyvinyl acetals as a constituent of coating compositions, as a binder constituent for diverse substrates, as a material for thermoplastic mouldings and as an intermediate-layer film in laminated glasses.
Patent DE-3841076-A1 (DE)
Inventor: DRAUSCHKE STEFAN
IPC: A61L2/06
Filed: 1988-12-02
Abstract: An autoclave for sterilizing waste or the like has a stirrer and a loading opening. The loading opening is connected to a pressure lock, which has at least one filling opening to be closed in pressure-tight manner. The filling opening leads into at least one chamber provided in the pressure lock casing. This chamber forms part of a mechanism moving the chamber from a filling position connected to at least one filling opening into a loading position connected to the loading opening.
Patent DE-3843499-A1 (DE)
Title: Vehicle wheel with a pneumatic tyre and a covering ring
Inventor: SPITZ WOLFGANG DIPL ING
IPC: B60B21/02
Filed: 1988-12-23
Abstract: The invention relates to a vehicle wheel with a pneumatic tyre and with a rigid rim which has essentially radially inwardly extending rim flanges, the wheel having a pneumatic vehicle tyre which is attached by its beads on the radially inner side of the rim next to the rim flanges, also having at least one single-component, hollow covering ring made of rubber or plastic which covers the space located axially inside of the tyre bead. In order to make the covering ring easier to mount, it is proposed that the covering ring be of hose-shaped design with a hollow chamber and have at least one circumferential sealing lip which covers the radially and axially inner bead edge.
Patent DE-3904041-A1 (DE)
Title: Method for manufacturing an aluminium foil having a pronounced cubic texture
Inventor: SCHOEN MANFRED DIPL ING
IPC: H01G9/04
Filed: 1989-02-10
Abstract: An aluminium foil having a pronounced cubic texture is produced by hot rolling, cold rolling with intermediate heat treatment, and recrystallisation. The intermediate heat treatment takes place in a low-oxygen protective gas (inert gas), preferably nitrogen.
Patent DE-3904862-A1 (DE)
Title: Tube switch for twin-cylinder viscous-material pumps
Inventor: SCHLECHT KARL DIPL ING
IPC: F04B7/00
Filed: 1989-02-17
Abstract: The tube switch intended for twin-cylinder viscous-material pumps comprises a swing pipe (1) which can be swivelled in front of a wear plate (8) and on whose cylinder-side end a wear ring (22) is disposed so as to be axially displaceable counter to the elastic force of a rubber-elastic seal ring (3). The wear ring (22) has a centring ring (2), which is axially guided on a cylindrical centring surface of the swing pipe (1), and a support ring (4) which is disposed concentrically within the centring ring (2), which two rings are joined together in a sandwich-like manner via the seal ring (3). The seal ring (3) completely penetrates, in the axial direction, the radial interspace between centring ring (2) and support ring (4) and, by its frontal area, can be pressed against the wear plate (8). These measures ensure, even if fine-grained abrasive material is delivered at high pressure, a long useful life of the wear ring. <IMAGE>
Patent DE-3906573-A1 (DE)
Title: Device for making very small holes in a film web or tubular film
Inventor: EICHEL DIETHARD
IPC: B26F1/24
Filed: 1989-03-02
Abstract: The device (1) for making small holes in a film web (28) has a piercing roller (7), on the inside of which there are arranged radially displaceable strips (18) which are fitted with needles (19). These strips of needles are pressed radially outwards in the region thereof by an inner, eccentrically arranged roller (12) and, as a result, the needles (19) penetrate radially into the film web (28). The depth of penetration of the needles (19) can be adjusted so that differently sized holes can be produced. <IMAGE>
Patent DE-3908374-A1 (DE)
Title: Seal for sealing the leadthrough of a rotatable shaft of a refiner
Inventor: SEPPAELAE VEIKKO
IPC: F16J15/40
Filed: 1989-03-15
Abstract: The seal is intended for sealing the leadthrough of a rotatable shaft (1) into the pressurised refiner chamber (3) of a refiner which produces mechanical half stuff from lignocellulose-containing material. To provide an economical seal which is highly resistant to wear, the seal consists of a bush (2) with a plurality radial inner flanges which form with radial outer projections (4) of the shaft (1) a labyrinth-like sealing chamber, the sealing action of which is reinforced by means of pressurised steam introduced into the labyrinth. <IMAGE>
Patent DE-3909450-A1 (DE)
Title: Method for the production of fluorescent screens, amplification films or storage films for X-ray diagnostics
Inventor: BECKER ERWIN WILLY PROF DR
IPC: G21K4/00
Filed: 1989-03-22
Abstract: Published without abstract.
Patent DE-3912184-A1 (DE)
Title: Vorrichtung zur Erkennung eines Objekts durch Photolumineszenz unter Laserbestrahlung
Inventor: LEBIHAN ANDRN
IPC: G01S17/74
Filed: 1989-04-13
Abstract: Die Vorrichtung zur Erkennung eines Objektes arbeitet mit Photolumineszenz. Freundobjekte sind jeweils mit der Vorrichtung ausgestattet, die in eine "Quelle" und ein "Ziel" zerfällt. Eine "Quelle" umfaßt einen Laser (10), der ein nach einem Code intensitätsmoduliertes Lichtbündel aussendet, und ein System (25) zum Empfangen und zur Analyse eines radiofrequenten Erkennungssignals. Ein "Ziel" ist mit einer ersten Beschichtung (16) bedeckt, die unter Bestrahlung mittels des Lichtbündels Licht durch Photolumineszenz aussendet, und mit einer zweiten Beschichtung (18) bedeckt, welche das Lichtbündel filtert und für das durch Photolumineszenz der ersten Beschichtung erzeugte Licht durchlässig ist, sowie Detektoren (20) zur Erfassung des durch Photolumineszenz erzeugten Lichtes, das von der ersten Beschichtung (16) ausgeht, um ein elektrisches Signal zu liefern. Ein radiofrequentes Erkennungssignal wird nach Analyse des Signals ausgesendet, welches die Detektoren (20) abgeben. Anwendung auf die Freundobjekt-Erkennung.
Patent DE-3915317-A1 (DE)
Inventor: KERI GYOERGY DR
IPC: C07K7/23
Filed: 1989-05-10
Abstract: Pharmaceutical compositions for treating hormone-dependent tumours without inducing hormonal castration contain a gonadoliberin derivative of general formula (I),  Gip-His-Trp-Ser-Tyr-X1-X2-X3-Pro-X4 (I)  wherein X1 stands for a glycyl group or a D-isomer of any native or synthetic aromatic D-amino acid group; X2 stands for an L-amino acid group bearing a C1-4alkyl or L-phenylalanyl or L-tryptophyl group; X3 stands for an L-amino-acid residue bearing a C1-4alkyl or C2-4alkanoyl amide side chain; and X4 means a glycyl amide or C1-4alkyl amide group, with the proviso that X3 means a group different from leucyl when X2 stands for a tryptophyl group and X1 is other than glycyl group, its addition salts formed with pharmaceutically acceptable acids or metal complexes.
Patent DE-3920237-A1 (DE)
Title: Dental heating device for prosthesis mfr. - comprises heating block with separate compartments heated with relative time delay
Inventor: ZEISER MANFRED P DR
IPC: A61C13/20
Filed: 1989-06-21
Abstract: The heating device uses a heating block (10) heated by at least one heating element (20) and incorporating a number of spaced reception compartments (11a...11c, 12a...12c) for holding respective cartridge for the plastics material to be heated.  A delayed heat feed to the individual compartments is provided so that the softening of the material in one cartridge is delayed relative to the softening of the material in another cartridge. Pref. the heating block has two spaced rows of compartments (11a.. 11c, 12a...12c) with the heating element (20) embedded in the block between them.  The compartments (11a...11c; 12a...12c) pref.  receive the heat unsymmetrically to obtain the required heating delay. ADVANTAGE - Low runing cost combined with ease of use.
Patent DE-3921349-A1 (DE)
IPC: B07B1/30
Filed: 1989-06-29
Abstract: In a screening machine comprising two screening frames (13 and 31) each having mutual oppositely located feed and discharge ends on which there is arranged an elastic screening lining (54) and which are caused to oscillate by independent oscillating drives wherein the two screening frames (13 and 31) are associated with each other at different heights in such a way that the lower region of the upper screening frame (31) and the upper region of the lower screening frame (13) lie in a common plane, that the elastic screening lining (54) is secured to the two screening frame (13, 31) in the common plane thereof and that the upper screening frame (31) is independently driven in a circular configuration at the feed end and the lower screening frame (13) is indepndently driven in a circular configuration at the discharge end.
Patent DE-3922179-A1 (DE)
Title: Bobbin pairing - has doffer working at station for one wound length with second bobbin for second length for pairing with stations
Inventor: WEY EDMUND
IPC: B65H67/06
Filed: 1989-07-06
Abstract: To match cross wound bobbins in pairs, according to different wound yarn lengths, stations are grouped into matching numbers of wound lengths (L1, L2), and are registered in the program memory as such according to the different winding stations. When the doffer has doffed a bobbin of one length (L1, L2) it travels to a winding station which produces the other length for that bobbin to be doffed. The two bobbins, of different wound lengths, are taken from the doffer as a pair. Pref. the bobbin doffed at one station is held in a store to be carried to the next station to be assembled with the second bobbin to be deposited as a pair. The paired bobbins are collected together or deposited at given points on the bobbin conveyor where the conveyor moves in steps according to the length taken up by a pair of bobbins. The winding speed of the separate winding stations is adjusted as an inverse ratio to the yarn lengths of the two bobbins to be paired, so that the winding times are the same for each type.  The two bobbins are stacked coaxially at the doffer while held there and oriented for transfer.
Patent DE-3927064-A1 (DE)
Title: Clean-out device for partly full sewers - with pneumatic transport through hoses on polyurethane foam floats
Inventor: WANCK PETER
IPC: E03F9/00
Filed: 1989-08-16
Abstract: Partly filled sewage ducts (3) can be cleaned by an appliance (2) which is introduced through a drain manhole (6,7). The appliance carries a vibrating rake and receives compressed air from a compressor (5) via the hose (17) to take the stirred up mud through a hose (8) to a tanker (1). A rope (10) on a winch (4) and a tail rope (11) pull the appliance to and fro. The hose (9) acts as an overflow. The hoses are kept afloat by slabs (16), attached every 3 m and made of PU foam, pref. in a semicylindrical shape. ADVANTAGE - Permits stretches of over 100 m length to be easily cleaned out in spite of the heavy wt. of the hoses.
Patent DE-3932615-A1 (DE)
Title: Spinning machine etc. empty sleeve sorting appts. - using colour marking sensors to control sorting flap
Inventor: TONE SHOICHI
IPC: D01H13/14
Filed: 1989-09-29
Abstract: In a plate conveyor for joining a spinning frame to a spooling automatic the empty sleeves are extracted from the carrier plates and only the plate is returned to the spinning frame to receive a new sleeve. The extraction device includes a sensor for empty sleeves when they pass a junction and controls a flap to divert them according to whether they are the type A or type B. ADVANTAGE - This produces a reliable sorting of the extracted empty sleeve.
Patent DE-3932694-A1 (DE)
Title: Inking roller  for rotary printing machine - has helical ridge of hard material with absorbent material between coils of helix
Inventor: OKAMURA YUICHI
IPC: B41F31/26
Filed: 1989-09-29
Abstract: The inking roller (1) of a rotary printing machine has a steel core (2) on which a continuous helical ridge (3) of hard material is formed. The hard material may be a ceramic or tunsten carbide which is deposited by flame spraying. The spaces between the coils of the helix are filled with an absorbent material (4) which receives the ink. This absorbent material contins a number of small hollow particles and the outer radius of this absorbent material is the same as that of the helical ridge (3). The small hollow particles are uniformly distributed throughout the absorbent material (4). USE - Rotary printing machines.
Patent DE-3933821-A1 (DE)
Title: Sealing pipe connection for butt jointed pipe ends - has two separate sealing section rings set in axially spaced sealing chambers
Inventor: LENHARD DIETER
IPC: F16L23/028
Filed: 1989-10-10
Abstract: The sealing pipe connection for butt-jointed pipe ends has two separate sealing profile rings (21,22) set in two axially spaced sealing chambers (19,20). These are defined by an inner chamber ring (14) whose sleeve face lies opposite the inner circumferential faces (15,16) of the outer chamber parts (5,6), one of the two chamber outside parts (5,6) and the sleeve face of the one or other pipe end (1,2). ADVANTAGE - The pipe connection has a simplified strong sealing assembly which is partic. secure even with relatively large tolerances regarding the shape and size of the pipe ends being connected.
Patent DE-3936941-A1 (DE)
Title: Cold gas stream for cryotherapy - formed by evapn. from electric heater in liq. gas with pulsating power supply
Inventor: ABLASS KARL ING GRAD
IPC: A61B18/02
Filed: 1989-11-06
Abstract: A stream of cold gas for external application to a patient in cryotherapy is emitted from the head of an insulated contaienr (10). It is formed as vapour from an electrically heated evaporator (32) immersed in the liq. gas. Energy for evapn. is supplied in a series of impulses varying between defined max. and min. values determined by an external controller (37).  Durations of max. and/or min. values are varied by a manual adjuster (38).  The min. value may be zero.  Heater cycles may be electronically controlled, possibly with a display device (39) indicating the values employed. USE/ADVANTAGE - Applicable to rheumatism treatment.  Cold gas flow rate is optimised from both therapeutic and economic aspects. Interrupted gas application allows intermediate massage.
Patent DE-3941326-A1 (DE)
Inventor: KLEINLE ALOIS DIPL PHYS DR
IPC: B42D25/00
Filed: 1989-12-14
Abstract: In an identity card having two records which correspond in their contents and are applied using the same method, one of the records is applied so as to be visually readable on the identity card and interlaced with a protective pattern as a safeguard against forgery. The protective pattern is applied using the same method as the records. <IMAGE>
Patent DE-3942865-A1 (DE)
Title: Air-flow control for greenhouse - has LV axial blowers and tiltably-mounted control flap
Inventor: KUEHNER ALFRED
IPC: F24F11/00
Filed: 1989-12-23
Abstract: The ventilator unit is mounted in a rectangular box, with two or more axial blowers (25) and a power unit (15).  The blowers are low voltage and can be powered from a solar cell charged battery (15). The control circuit is on a circuit board (14) which forms the boundary between the power unit and the blowers. A tilt mounted flap (16) covers the blowers and controls the air-flow. The greenhouse has one unit for extracting air and a unit with only a control flap for controlling fresh air inlet in conjuction with the exhaust unit. The flaps are driven by a crank (20,21) on a servo motor, with switches (22,23) to monitor the open- and closed positions. ADVANTAGE - Compact: low power needs; solar powered.
Patent DE-4002506-A1 (DE)
Title: Sliding vane IC engine - has heat exchanger and condenser to utilise heat in exhaust gases
Inventor: FOERG GEORG
IPC: F02B53/00
Filed: 1990-01-29
Abstract: The rotary IC engine has a sliding vane rotor (1). It has a pressure gas generator (2) connected to the rotor housing through a flap valve (8). The exhaust gases from the engine flow through a heat exchanger (3) and then through a valve (4) to a condenser (5). The moisture in the exhaust gases is condensed and pumped by the pump (6) back to the pressure gas generator (2). The degree of vacuum across the flap valve (8) is used to control the valve (4) which controls the flow of exhaust gases to the condenser. USE/ADVANTAGE - Rotary IC engine with utilisation of heat in exhaust gases.
Patent DE-4006611-A1 (DE)
Title: Paper cutting-perforation wheel - has projecting cutter blade clamped between holder discs
Inventor: GERHARDT JOERGEN
IPC: B26D1/00
Filed: 1990-03-02
Abstract: The cutter and/or perforator wheel is for paper, metal foils and/or synthetic films. It has an abutment disc (2) of preselected diameter and a similar press-on disc (4). A removable disc-shaped cutter and/or perforator blade (6) is coaxially clamped between the two. The cutting/perforation line (8) of the blade projects slightly over the circumference of the two discs. ADVANTAGE - No need to replace any parts, except for cutter blade.
Patent DE-4009237-A1 (DE)
Title: Lower loader for longwall working - has auxiliary roller to pulverise coarse debris to prevent blockage in machine gantry
Inventor: HENRICH FRIEDHELM
IPC: E21C27/02
Filed: 1990-03-22
Abstract: Roller loader whose machine body is guided on rails of a longwall conveyor system (3), has the novelty of a roller support arm (5) inside which is a drive train extending from a drive wheel of a motor (8). An intermediary shaft connected to the drive train runs parallel to the swivel axis of the arm (5) and has its drive end engaged via gearing in the drive shaft of an auxiliary roller (18). The intermediary shaft extends from the roller support arm (5) and is coupled to gearing in a self-contained transmission housing which is fixed releasably to the roller support arm (5). The other end of the gearing is coupled to the drive shaft of the auxiliary roller (18). USE/ADVANTAGE - Used in longwall working, the provision of an auxiliary roller on the front end of the roller loader pulverises coarse debris in order to counteract possible blockages of the machine gantry.
Patent DE-4009746-A1 (DE)
Title: Electrochemical gas sensor - with metal-metal oxide or partially reduced metal oxide electrodes
IPC: G01N27/30
Filed: 1990-03-27
Abstract: In a gas sensor, in the form of an electrochemically potentiostatically operated cell system with two or more electrodes, the novelty is that the reference electrode(s), counterelectrode(s) and/or auxiliary electrode(s) consist of a metal/metal oxide mixt. and/or a partially reduced metal oxide. A novel electrochemical cell system has (a) a work electrode (measuring electrode) of Pt, Au, Ag and/or other precious metal or their alloys; and/or (b) a reference electrode of Pb/PbO, Cd/CdO, Ag/AgO, Hg/HgO, Ni/NiO, partially reduced NiO and/or partially reduced MnO2; and/or (c) a counterelectrode of Pt, Au, Ag and/or other precious metal or their alloys, partially reduced NiO/Ni, CdO/Cd mixt., AgO/Ag mixt., HgO/Hg mixt., partially reduced NiO, partially reduced MnO2, PbO/Pb mixt. and/or Pb. USE/ADVNATAGE - The cell system is used to measure gas or vapour concns. It has good constancy of selected measuring electrode operating potential and the counterelectrode can be regenerated to achieve extended service life of the sensor.
Patent DE-4012979-A1 (DE)
Inventor: HEHNER REINHARD
IPC: B65H35/02
Filed: 1990-04-24
Abstract: In prior art processes for winding continuous webs of material (1), in particular paper or carton, on to spools, the material (1) pulled off a delivery roll against a braking force is divided, by cutting it along its length, into individual strips which are subsequently wound under tension on to individual rolls (19, 20). In order to be able to set different tensions for cutting and for winding at the winding stations (9, 10), the invention calls for the tension of the individual strips after cutting and before winding to be interrupted by passing the strips over a driven roller with which the strips lock frictionally. The tension is preferably interrupted by a free-running roll (22) which presses against the driven roller, thus holding the individual strips in place.
Patent DE-4014179-A1 (DE)
Title: Setting member for gem stone - has detachable detent body for fixing on different holders with tongue moulded on holder
Inventor: SAUTER HENRY
IPC: A44C17/02
Filed: 1990-05-03
Abstract: The setting for a gemstone to be held in a piece of jewellery etc. is designed to fit at least partially in a socket where it is detachably fixed by detent bodies. A tongue (14) moulded on the setting (12) or holder and extending in the insert direction has a projection or rear cut section (16) which interacts with an elastically deformable counter member (24) connectable with the holder (22) or socket. The rear cut section can engage behind the counter member (24). ADVANTAGE - The setting can connect with different holders or jewellery items as often as required.
Patent DE-4015574-A1 (DE)
Title: Metal alloy contg. tin, silver, silicon, and copper
Inventor: BOERNER VEIKKO DIPL ING
IPC: B23K35/30
Filed: 1990-05-15
Abstract: A metal alloy contg. 10-20 wt.% Sn, 0.5-20 wt.% Ag, and 0.1-10 wt.% Si and the balance Cu is used for brazing at temps. of 500-900 deg.C, which is suitable for producing a soldered joint using additional fluxing agent and can be mfd. as a homogeneous, ductile soldering foil or wire by solidifying. The metal alloy pref. contains 10-20 wt.% Sn, 2-6 wt.% Ag, 0.5-3 wt.% Si and the balance Cu. The ratio of Ag to Si is 2-9:1.
Patent DE-4021063-A1 (DE)
Inventor: GUDER HANS-JOACHIM DIPL CHEM D
IPC: C07H15/203
Filed: 1990-07-03
Abstract: Compound of the general formula 
<IMAGE>
 in which R represents CF3 or CN, and processes for their preparation and use as  beta -galactosidase substrate, in particular in a CEDIA system.
Patent DE-4021763-A1 (DE)
Title: Vehicular seat belt - provides optical and acoustic signalling in conjunction with belt fixture for assistance of person seeking to effect prompt release
Inventor: KRUEGER JUERGEN
IPC: B60R22/32
Filed: 1990-07-06
Abstract: With the large number of seat belt release mechanisms currently on the market it is found that an assistant in emergency situations, where life is at max. risk, is not in a position to release the belt restraining a trapped driver or passenger at the first attempt. This disadvantage is overcome by the invention which provides both visual and audible signals for the guidance of a person attempting the release.