baber/WOPTO huggingface dataset:
Patent DE-3922358-A1 (DE)
Title: Detecting contaminants in aqueous liquids using microscope - using micro-camera pulsed flash and light chopper to produce banded motion tracks
Inventor: WALZ HEINZ
IPC: G01N33/18
Filed: 1989-07-07
Abstract: An arrangement for detecting contaminants in aqueous liquids contains a microscope with a microphotographic fitting. A retrospectively installable device  between the microscope light source and the condenser contains a pulsed electronic flash. The existing microscope light source is adapted to contain a light beam chopper between the microscope lens (6) and camera (7). The arrangement is used to produce banded motion tracks of cells moving in living preparates. USE/ADVANTAGE - For rapid detection of contaminants in aqueous liquids. Can produce test results very quickly.
Patent DE-3922752-A1 (DE)
Inventor: SCHWALL HORST DIPL CHEM DR
IPC: C07C69/716
Filed: 1989-07-11
Abstract: In a process for obtaining lower alkyl esters of R-(+)-3-oxocycloalkane carboxylic acids, the corresponding racemate undergoes hydrolysis at a pH between 7 and 8 in order to hydrolyse the unwanted enantiomer. The ester of interest can then be isolated from the reaction medium.
Patent DE-3923922-A1 (DE)
Title: Vehicular exterior mirror adjustable by motor and gearing - has resiliently-mounted motor in fixed portion of housing for retraction of normally deployed pivotable portion
Inventor: LANE PETER
IPC: B60R1/074
Filed: 1989-07-19
Abstract: The housing of the mirror has a first section (2) extending along the vehicle, and a second section (3) pivotable about a vertical axis (4) between the deployed position and a retracted position close to the first section (2). The pivoting is effected by an electric motor (5) driving a pinion (9) in mesh with the teeth (11) of a segment (10) coupled to the axis (4), with two springs (13). USE/ADVANTAGE - Mirror is easily movable from deployed to retracted position in, e.g. automatic washing plants or  underground garages, as well as in the vent of an accident.
Patent DE-3927597-A1 (DE)
Inventor: BUECK RUDOLF
IPC: D21F9/00
Filed: 1989-08-22
Abstract: Disclosed is a twin-wire former for the production of a paper web, in which two screens (11 and 12) together form a zone which is divided into three section (I, II and III). In the first section (I), the two screens (11, 12) run over a curved forming shoe (16) where they form a wedge-shaped inlet gate (15) with which a headbox (10) is directly associated. Abutting the lower screen (11) in the second section (II) are several flexibly mounted strips (27) and in the upper screen (12), between each of these strips (27), a rigidly mounted strip (28). In the third section (III), both screens (11, 12) run over a second curved forming shoe (23).
Patent DE-3928998-A1 (DE)
Title: Programmable memory controller with parallel bus connection - has serial bus for economical independent inter-slave communications, with one slave acting as master
Inventor: MEHLGARTEN UWE
IPC: G05B19/05
Filed: 1989-09-01
Abstract: A programmable memory controller contains a master assembly (1) connected to slave assemblies (2, 3) via a parallel bus (4). The slaves are connected to each other via a serial bus (9) and one slave acts as master for serial bus communications. The slave assemblies can be activated via the serial bus by a signal placed on the serial bus by the master assembly. The serial bus contains a line (10) and an earth line (10) for communications between the slaves and master. USE/ADVANTAGE - Enables parallel bus independent data communications between slaves at minimal cost.
Patent DE-3929141-A1 (DE)
Title: Card monitoring device esp. for reader - has aperture blocking device coupled to read head preventing unauthorised tampering
Inventor: RAPP HANS-JOCHEN
IPC: G06K13/08
Filed: 1989-09-02
Abstract: A card monitoring device contains a read head (4) mounted at a card aperture, a blocking device (6) for the aperture and drive (5) which moves the blocking device from the open to the closed position. The drive has a locking device (25) which locks the blocking device in its closed position. The blocking device is motionally coupled to the read head so that moving the blocking device into the open position moves the read head out of the path (34) of the card. ADVANTAGE - Prevents untimed opening of blocking device without increasing resistance to motorised insertion.
Patent DE-3930912-A1 (DE)
Title: Parallelism testing appts. for two axes - has automatic collimator and beam splitter testing position of three mirror planes
Inventor: FRANCKE ERWIN ING GRAD
IPC: G01B11/26
Filed: 1989-09-17
Abstract: An angled mirror(10) cuts one(1) of the axes, while a planar mirror (20) cuts the other(2). The mirrors are positioned w.r.t. each other that their three mirror planes extend at right angles to each other. An auto-collimator(30) and a beam splitter(40) are positioned so that the collimator beam (31,33) is split into two partial beams (32,34) at right angles to each other. Each partial beam impinges on an assigned mirror(10 and 20). If the positioning of the three mirror planes is correct the beams are reflected back to the beam splitter and collimator. Pref., the beam splitter is a mirrored 135 deg. prism. A laser range finder and CCD angle sensor can be incorporated. USE/ADVANTAGE - Gun and telescopic sight of tank. Effective for long distances.
Patent DE-3931576-A1 (DE)
Title: Item-carrier-bracket for car - fits over ball of trailer hitch
Inventor: MIM FRANZ
IPC: B60R9/06
Filed: 1989-09-22
Abstract: The carrier bracket for a private car accommodates items in everyday use. It fits over the ball of a trailer hitch, and can be arranged to engage positively with the ball, so that it can neither slide nor turn. When not required the carrier bracket may be detached from the trailer hitch and can be stowed in the boot. USE/ADVANTAGE - Carrier bracket on back of car accommodates bulky items such as bicycles, perambulators etc. which the boot cannot take.
Patent DE-3934084-A1 (DE)
Title: Liquid cooling system for high temperature battery - has heat exchanger loop with pre cooling reservoir stage
Inventor: ECK GISMAR DIPL PHYS DR
IPC: H01M10/6568
Filed: 1989-10-12
Abstract: A high temperature battery, e.g. natrium-sulphuric acid (1), has a matrix of electrochemical cells (3) that generate thermal energy and is cooled by passing a liquid through a heat exchanger (2). The coils of the exchanger are connected into a closed circuit that has an external heat exchanger (4) and circulation pump (5). Located in the fluid line leading to the pump is a reservoir (6) with a gas pressurised diaphragm and this unit provides an additional cooling. A variation has the heated fluid circulated through a coil within the reservoir. ADVANTAGE - Economical system for cooling battery.
Patent DE-3934186-A1 (DE)
Title: Two-shell grab suspension on excavator boom - has ram operated hinged mounting plate at grab swivel ring
Inventor: NAGLER JUERGEN
IPC: E02F3/96
Filed: 1989-10-13
Abstract: The two-shell grab suspension on an articulated excavator boom has at the grab (4) slewing ring (6) a hinged mounting plate (7), while there is a bucket ram (5) on the boom arm (3a) on which the grab is mounted. The ram acts on the plate to tilt the grab. A motor (9) is pref. mounted between the plate and the slewing ring for the grab rotation. ADVANTAGE - Pressure application to the grab without affecting its freedom of movement.
Patent DE-3936077-A1 (DE)
Inventor: BOLLENBACHER CHARLES E
IPC: B65D85/00
Filed: 1989-10-30
Abstract: An apparatus and method for packaging and transporting materials having recoiling, snagging and kinking problems, more particularly tantalum wire or columbium-zirconium alloy wire, comprising placing the material in a figure 8 configuration around parallel members extending from the bottom of a container such that the members extend through the bights of the figure 8 and the crossover of the figure 8 is between the members. The bottom of the container may include a tray through which the parallel members pass and which tray contains channels to guide and hold the wire in the figure 8 pattern. <IMAGE>
Patent DE-3936354-A1 (DE)
Title: Roving feed - has flask to contain flyer bobbin with feed slit to prevent dust passing from bobbin to spinner
Inventor: BROCKMANNS KARL-JOSEF DR ING
IPC: D01H1/42
Filed: 1989-11-02
Abstract: To deliver a roving (5) to a spinner, the flyer bobbin is placed in a take-off flask (2) which has a take-off slit (4) parallel to the axis of the flyer bobbin. Pref. the roving take-off slit (4) is displaced to one side of the axis of the flyer bobbin (1), with two round rods (7,8) flanking the slit (4) as a roving guide. The flyer bobbin (1) is on a swing suspension within the flast (2), with a release mounting with a ratchet or index lever coupled and keyed to the flyer bobbin (1). The flast (2) has couplings, at least at one end, to be engaged by transport and/or centering system. A brake within the flask (2) restrains bobbin (1) rotation while the roving (5) is taken off, through a spring clamping clip which extends from the inner side of the flask (2) to bear against the bobbin (1) surface. ADVANTAGE - The system gives a smooth transfer to the roving between the bobbin and the spinner, and prevents dust dispersing from the bobbin to the spinning zone.
Patent DE-3940497-A1 (DE)
Title: Prodn. of thin-walled bottles - by forming tubing of single or laminated thermoplastic film with suitable dia. neck and welding that to similar dia. neck piece
Inventor: SCHENK BERND DIPL ING
IPC: B29C49/42
Filed: 1989-12-07
Abstract: Flexible thin-walled containers are produced with at least one rigid connecting/filling part, whereby film tubing or two extruded strips of film are moulded in a multi-tool mould using thermoplastic film. For the joining part of the container between its body and connecting piece the film is shaped into a suitably disposed neckpiece with the same i.d. as the connecting part; a suitable support is placed in the neckpiece, and the film is pressed against it so that the end of the connecting part is welded to the edge of the neckpiece. ADVANTAGE - The prods. have a smooth interior surface and large radius corners, whether in one single film or in a laminated film. They are thin but have dimensionally accurate and stable necks. They can be injection moulded or vacuum formed. The neckpiece is bonded on both externally and internally. The containers can be completely emptied.
Patent DE-3940948-A1 (DE)
Title: Continuous electrolyte delivery method for reference electrode system
Inventor: STELLMACHER KLAUS
IPC: G01N33/36
Filed: 1989-12-12
Abstract: Electrolyte is continuously fed to a reference electrode for direct or indirect contacting of a measurement medium by gradually passing it through a diaphragm in contact with the measurement medium. Removal of an electrode (11) insert mounted in an outer tube closes an inner valve mechanism (26-28), via which the liquid reference electrolyte reaches the electrode insert through the outer tube.  The insert opens the valve again as it is inserted.
Patent DE-4005676-A1 (DE)
Title: Radar wave absorber for building - uses ceramic plates attached to building wall with directly attached reflective layer
Inventor: BARD MARTIN DIPL ING
IPC: E04B1/92
Filed: 1990-02-22
Abstract: The wave absorber uses ceramic plates (4) provided with an electrical resistance coating (5) with an adjustable resistance value, on the rear side facing the building wall (1) to which the plate is attached. A fully reflective surface (3) for electromagnetic waves is directly attached to the building wall (1), with a fibre cladding (6), providing a destructive radar interference, between the reflective surface (3) and the plate (4).
Patent DE-4008780-A1 (DE)
Title: Homo-junction bipolar transistor - suitable for low temp. high speed operation
Inventor: YANO KAZUO
IPC: H01L21/331
Filed: 1990-03-19
Abstract: A novel semiconductor device has a semiconductor substrate (1) which is cooled to an operating temp. of max. 200K and which has, in one surface, at least one bipolar transistor including a first conductivity type collector region (11) connected to a second conductivity type self-conducting base region (7) which is connected to a first conductivity type emitter region (2,5).  The max. second conductivity type impurity concn. of the base region (7) is higher than 3x10 power18 cu.cm and is greater than the first conductivity type impurity concn. of a first portion (5) of the emitter region (2, 5), the first  conductivity type impurity concn. of a second portion (2) of the emitter region (2, 5) being more than 3 x 10 power18/cu.cm.  The base region (7) and the first and second portions of the emitter region (2, 5) are formed of identical semiconductor material, apart from the first and second impurity types.  The first conductivity type carriers, forming a major part of a current which flows through an emitter-collector current path, migrate upwardly from within the substrate body to the substrate surface. ADVANTAGE - The high power bipolar transistor is suited to low temp. high speed operation, and increases the operating speed of digital circuits, analogue circuits, computers, measuring instruments, amplifiers and the like. It is esp. suitable for operation at 77K and can be produced by ion implantation.
Patent DE-4010596-A1 (DE)
Title: Safety circuit for lighting - has action of door used to control activation of lighting circuit
IPC: H05B37/02
Filed: 1990-04-02
Abstract: A pair of doors (16) are mounted on hinges (20) and swing through an arc to open and close an opening (12). Positioned in the ceiling above the door are halogen lamps (10) supplied from a control box (28). Located in line with the hinges and lamp points are switches, e.g. reed relays, that are activated when the door is in such a position that the lamp is directly over the edge of the door. In this position the lamp is switched off. ADVANTAGE - Reduces fire risk due to heating of wooden door.
Patent DE-4012728-A1 (DE)
Title: Support frame for containers for small utensils - consists of vertical mesh with hooks gripping over rungs, fixture strip and handle
Inventor: TWELLMANN GUENTER
IPC: A47B77/14
Filed: 1990-04-21
Abstract: The support frame (18) with containers (20) in the form of square boxes for small utensils is in the form of a vertical mesh. At least one end of the containers (20) has at least one hook (24) under which is a support surface (28). The hook (24) grips over a horizontal rung (26) and is held horizontally on the mesh by resting against the support surface (28). The side of the containers opposite a fixture-strip (24) have a handle (22) with a vertical grip part (34). Under the hook (24) is a protuberance (30) protruding into the space between the rungs (26). USE/ADVANTAGE - The container system for small utensils is easy to set up and handle, and is compact and flexible.
Patent DE-4016449-A1 (DE)
Title: Glass security disc prodn. with electrical connection to central foil - by drilling connection hole after joining inner and outer glass discs and foil by thermo-pressure process
Inventor: BRAUN JOERG DIPL ING
IPC: B32B17/10
Filed: 1990-05-22
Abstract: Method of producing a composite security glass disc which is made of an outer and inner disc with composite foil between, which has an integrated antenna element and/or heating element. The method consists of cutting the discs to size and assembling together with the foil before uniting with pressure and heat to form a sealed composite disc. The disc is then held in a bore holder and the bore hole for the connecting lead to the foil drilled into one edge with the glass cylinder profile being removed after drilling. Pref., if the discs have to be bent, they are assembled on top of each other and bent in a bending furnace prior to assembly with the foil. ADVANTAGE - This method of production reduces the scrap rate associated with the prior art method when the hole is drilled with one disc prior to assembly.
Patent DE-4019019-A1 (DE)
Inventor: ARNDT FRIEDRICH KARL DR ING
IPC: B25D9/26
Filed: 1990-06-14
Abstract: In order to determine characteristic quantities by means of which the operational performance of an impact machine can be influenced, it is proposed to determine the impact velocity of the impact piston (26) shortly before, and its return velocity shortly after, the impact, by using a relative movement corresponding to the impact piston movement to trigger in each case a plurality of time marks (t1, t2 or t3, t4) which are assigned to a working stroke section or return stroke section ( DELTA s) and succeed one another at a time interval, and by determining the time intervals between the succeeding time marks of the working stroke and the return stroke. The values of the time intervals between the relevant time marks are used continuously to determine and render capable of evaluation at least one of the further characteristic quantities of number of impacts, impact energy, impact power, reflection energy, reflection factor, position of the power impact plane and temporal variation in the position of the impact plane. <IMAGE>
Patent DE-4019509-A1 (DE)
Title: Mounting housing holding electronic components - has projections from base serving to resist shock when container is placed on PCB
Inventor: ENOMOTO HISAO
IPC: H01C1/022
Filed: 1990-06-19
Abstract: A unit housing contg. electronic components (13) comprises a main container (11), closed by a lid (12), with at least two contact plates (14,15) carrying the component (13) between them. The plates (14,15) have regions which project out through the base (11c) of the container (11) and have relatively small insertion members provided by a step at their outer ends. The container has projections (16,17) from its base (11c) which are longer than the distance (L1) from the base (11c) to the step to prevent a reactionary force being transmitted to the plates via the step when the housing is placed on a p.c.b. which may cause the lid to spring off. USE/ADVANTAGE - Holding, e.g. thermistor with positive temp. coefficient or a piezo-electric device between contact plates. Prevents lid sprining off, independant of magnitude of force with which container is placed down.
Patent DE-4026013-A1 (DE)
Title: Adjusting angle between two IC engine shafts - involves placing transmission agent between tension roller and adjustable roller
Inventor: LEMME WERNER
IPC: F02M39/02
Filed: 1990-08-17
Abstract: The transmission agent (3) may be a belt, chain or similar.  It links the drive shaft (1) to the driven shaft (2) and is positioned between two guide rollers (5,6). One guide roller is a tension roller (5), the other an adjustable roller (6). USE/ADVANTAGE - Simple assembly and tensioning of transmission agent in IC engine.  The timing relationship between two shafts can be altered.
Patent DE-4026751-A1 (DE)
Title: Device for measuring concn. of soln. or suspension - heated probe is placed in pipe through which soln. is circulated, and concn. is derived from temp. difference between soln. and probe
Inventor: TANNO KATSUTOSHI
IPC: C12Q1/06
Filed: 1990-08-24
Abstract: The procedure comprises placing an electronically heated probe in the soln. or suspension, the temp. of the probe and the temp. difference between the probe and the soln. or suspension are measured, and the concn. of the soln. or suspension is calculated from the above measurements. The heating current applied to the probe is held constant during measurement, and the probe is inserted in a tube through which the soln. or suspension is circulated by a pump at a velocity in the range 0.01 and 1.0 metres per second. Measurements may be made at a number of different fluid velocities, greatest accuracy usually being achieved at lower velocities. USE/ADVANTAGE - Used in the food industries for the measurement of the concn. of microorganisms or their prods. in solns. or suspensions. The disadvantages of existing optical, reactive and electrochemical measurement methods, which are esp. due to the adherence of the microorganisms to the probes used and to the presence of gas bubbles in the soln. or suspension, are overcome by a method which is simple to operate and requires no complicated instrumentation.
Patent DE-4029315-A1 (DE)
Title: Attachment of piston crown to its skirt - involves bolts engaging tapped holes with slots near holes to prevent cracks in crown
Inventor: WIEMANN LOTHAR
IPC: F02B23/06
Filed: 1990-09-15
Abstract: The piston of an IC engine has the piston crown (2) fastened to the piston skirt (4) by a ring of bolts (3). The bolts pass through holes in the end wall of the skirt and engage tapped holes (5) in a circular ridge formed on the inner face of the crown. This ridge has pairs of radial slots (6) with the members of each pair being on opposite sides of a tapped hole. These slots prevents the formation of cracks in the neighbourhood of the tapped holes when the bolts are tightened to secure the piston crown to the piston skirt. USE/ADVANTAGE - Fixing of a piston crown to its skirt without causing cracks in the crown.
Patent DE-4029592-A1 (DE)
Title: Degradable absorption agent based on polymers - comprises at least one water swellable synthetic polymer and at least one polysaccharide, used for prepn. of hygiene articles, etc.
Inventor: CHMELIR MIROSLAV DIPL CHEM DR
IPC: A61L15/00
Filed: 1990-09-19
Abstract: An absorption agent and swelling agent for water aq. solns. and body liquids consists of a mixt. of at least 2 components A and B, A is at least one water swellable synthetic polymer or copolymer crosslinked with a multi-functional cpd. B is at least one polysaccharide chosen from galactomannan, polygalactomannan or galactomannan derivs. or their mixts. with other natural or synthetic polymers which are flowable powders or fibre materials at normal temps. and which have only limited solubility in water or are insol.
Patent DE-4029687-A1 (DE)
Title: Excimer laser resonator with high spectral purity output beam -  has filter between beam widening device and exit mirror
Inventor: LOKAI PETER
IPC: H01S3/082
Filed: 1990-09-19
Abstract: The laser resonator has an exit mirror (12), an angular dispersion element (14) and a device (28) for widening the laser beam incident on the latter. A filter (30) lies in the path of the beam between the beam widening device (28) and the exit mirror (12), or between the individual elements (P1, P2, P3) of the beam widening elements (28). Pref. the filter (30) is an etalon which exhibits a bandwidth which is at least double the that of the resonator (10) with the beam widening device (28), but without the filter (30). USE - E.g. in photolithography or micro-material processing.
Patent DE-4031448-A1 (DE)
Title: NEW phenyl:carbamoyl-substd. di:oxo-di:aza:phosphorine derivs. - used for control of helminths, esp. nematodes, cestodes and trematodes
Inventor: GALLAY JEAN-JACQUES DR
IPC: C07F9/6584
Filed: 1990-10-04
Abstract: Diazaphosphorine derivs. (I) and their N-oxides and salts are new. In (I), A, Q = O or S; R1 = opt. substd. alkyl, alkenyl, alkynyl, aryl, aralkyl or heteroaryl; R2, R3 = H, alkyl, alkenyl, aryl or aralkyl or one of R2 and R3 = opt. substd. cycloalkyl; R4 = opt. substd., C-linked benzimidazolyl, benzoxazolyl, benzthiazolyl, imidazolyl, oxazolyl, thiazolyl or triazolyl; and R4, R5 = H or opt. halo-substd. 1-6C alkyl or 1-6C alkoxy. 26 Cpds. of (I) are specifically claimed e.g.  N-(4-(6-trifluoromethoxy -2-benzthiazolyloxy)-phenyl)-hexahydro-E-phenyl-1,3 2-diazaphosphorine-5-carboxamide. USE/ADVANTAGE - Cpds. (I) are used to control helminths, esp. nematodes, cestodes and trematodes in domestic animals, ruminants and poultry. Dosages are e.g. 1-500 mg/kg. Cpds. (I) are fully effective against thiabendazole-resistant helminths.
Patent DE-4033207-A1 (DE)
Inventor: HOELTER HEINZ DR ING
IPC: B60H3/06
Filed: 1990-10-19
Abstract: The invention concerns an air-inlet pipe for the driving cabins of vehicles, preferably agricultural tractors. The invention proposes that the air-inlet pipe is mounted on the roof, or recessed into the cabin, so that it can be swung up on hinges and/or extended telescopically. In addition, the telescopic pipe is fitted inside with a hose-like filter in such a way that, when the pipe is deployed, the hose streches as the pipe extends.