baber/WOPTO huggingface dataset:
Patent DE-4105326-A1 (DE)
Inventor: BONNET LUDWIG
IPC: A61B1/04
Filed: 1991-02-21
Abstract: In the endoscope (1) having a lens of a camera (6), preferably a video camera, which can be proximally coupled to the eyepiece, the camera lens (6) is mounted so as to be freely rotatable on the proximal end of the eyepiece funnel (4) of the endoscope (1). The camera lens (6) with camera head (10) has a centre of gravity displaced eccentrically with respect to the axis of rotation, as a result of which the lens (6) retains its position on rotation of the endoscope (1) about its longitudinal axis, so that a rotational movement of the endoscope (1) does not affect the endoscopic image shown on the monitor of a video camera. 
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Patent DE-4106121-A1 (DE)
Inventor: MEIXNER JUERGEN DR
IPC: C09K23/52
Filed: 1991-02-27
Abstract: Hydrophilic polyurethanes containing at least 1.0 % by weight of olefinic double bonds (calculated as =C=C=) and containing from 20 to 80 % by weight of ethylene oxide units incorporated via polyethylene glycol, and which have been prepared by reacting 
 
  a) a polyisocyanate component, 
  b) a  beta , gamma -ethylenically unsaturated ether alcohol component, 
  c) optionally a further formative component which is reactive towards isocyanate groups, and 
  d) a polyethylene glycol component, 
 with an NCO/OH equivalent ratio of from 0.7:1 to 1.2:1 being observed, the use thereof as emulsifiers for water-indispersible synthetic resins in the preparation of aqueous synthetic resin dispersions, a water-dispersible mixture of a synthetic resin of this type and a hydrophilic urethane of this type, and a coating composition which contains a mixture of this type as binder.
Patent DE-4111445-A1 (DE)
Inventor: ZAHN WOLFGANG DR
IPC: G03F7/022
Filed: 1991-04-09
Abstract: A radiation-sensitive composition containing a water-insoluble polymeric binder, which is, however, soluble or at least swellable in an aqueous alkaline solution, and 2,3,4,4'-tetrahydroxybenzophenone partly esterified with 1,2-naphthoquinone-2-diazide-4- and/or -5-sulphonic acid is characterised in that it additionally contains either a dihydroxybenzophenone completely esterified with 1,2-naphthoquinone-2-diazide-4- and/or -5-sulphonic acid or a trihydroxybenzophenone partly or completely esterified with 1,2-naphthoquinone-2-diazide-4- and/or -5-sulphonic acid, the weight ratio of esterified 2,3,4,4'-tetrahydroxybenzophenone to esterified di- or trihydroxybenzophenone being 4:6 to 7:3 and the proportion of the esterified hydroxybenzophenones being in total 5 to 40% by weight, based on the total weight of solids in the mixture. The invention also relates to a radiation-sensitive recording material comprising a base and a layer which is situated thereon and contains said mixture.
Patent DE-4113191-A1 (DE)
Title: Universally adjustable plough body - has endless rotary belt instead of conventional mouldboard
IPC: A01B15/10
Filed: 1991-04-23
Abstract: In a universally adjustable plough body, the conventionally curved mouldboard is replaced by a rotary belt. The belt itself is shaped by two rollers arranged at an angle to each other. The adjustment of the angle of rotation and of the lateral angle of direction of the rotating belt is achieved via hydraulic cylinders. USE/ADVANTAGE - The pump body shape can be altered during work so as to be optimally adjusted for any type of soil, shallow or deep ploughing, or uphill, level, or downhill ploughing.
Patent DE-4113314-A1 (DE)
Title: Universal stacking support frame for transport and storage purposes - has four cylindrical tubes at corners of rectangular metal frame
Inventor: BATIC MARCO
IPC: B65G1/02
Filed: 1991-04-24
Abstract: On each cylindrical supporting tube (14) there is an upwardly projecting metal retaining pin which can be inserted from below into a supporting tube (14) of a second support frame (10) mounted above. The retaining pin can be locked by an inclined bore (56) with a locking bolt with the support column of the frame above. The basic rectangular metal support frame is formed by four square tubes connected at their ends in pairs to define a frame opening. The corners of the support frame are pref. rounded to avoid injury. By adding oblong holes to the support columns it is possible to add extra fittings can be added to the basic framework. ADVANTAGE - The frame is lightweight yet stable.
Patent DE-4114959-A1 (DE)
Title: Nitrate ion concn. measuring probe - has temp. sensor for temp. compensation of probe output signal
Inventor: GRUENKE UDO DR
IPC: G01N33/18
Filed: 1991-05-08
Abstract: A device for measuring nitrate ion concns. in solns. or suspensions consists of a single probe with a nitrate-selective contact membrane module, a ceramic diaphragm, an internal electrolyte and a silver/silver chloride reference system for connection to an evaluation unit. The novelty comprises the provision, near the contact membrane module (2,3), of a temp. sensor (1) providing an output which can be combined, for temp. compensation purposes, with the probe output in a microprocessor of the evaluation unit. The contact membrane module (2) is pref. exchangeable, e.g., screwed to the probe housing tube (16). The temp. sensor (1) is pref. a low thermal capacity, semiconductor element, e.g., a thermistor. USE/ADVANTAGE - The device forms a mobile measuring system for use in agriculture, forestry, water management and environmental protection. Temp. compensation is provided without preventing `field use' of the device.
Patent DE-4115243-A1 (DE)
Title: Rotary vibration damper for vehicle gearbox - has sleeve adjoining support shoulder during idling to prevent gearbox chatter
Inventor: JUD DIETER
IPC: F16F15/12
Filed: 1991-05-10
Abstract: The sleeve (4) is in friction engagement by a rolling section (9) with a gearwheel (10) which is to be driven and which is mounted on the shaft with axial play. The support shoulder (8) is formed by a safety ring set on the drive shaft (1) and a resetting spring (12) such as a plate spring is set on the side of the gearwheel (10) opposite the rolling section. When the sleeve adjoins the support shoulder there is axial play between the rolling section of the sleeve and that of the gear wheel. When the gearbox input shaft is not rotating but vibrating, the rolling sections are not under friction engagment as a result of the axial play. USE/ADVANTAGE - Damper in vehicle gearbox ensures that the vibrations are not transferred to the gearwheel when the gear input shaft is idling.
Patent DE-4115412-A1 (DE)
Title: Reducing birefringence temp. dependence of liq. crystal media - by addn. of 1-(trans-4-alkyl:cyclohexyl)-2-(4-cyanophenyl)ethane cpds.
Inventor: FINKENZELLER ULRICH DR
IPC: C09K19/02
Filed: 1991-05-10
Abstract: High clarity nematic liq. crystal media have the temp. dependency of their birefringence reduced by inclusion of one or more 1-(trans-4-alkylcyclohexyl)- 2-(4-cyanophenyl) ethanes of formula (I). They opt. also contain one or more opt. fluorinated 4-ring dielectrically neutral cpds. of formula (II). In formula R is unsubstd. or halo-substd. 1-15C alkyl opt with 1 or 2 CH2 gps. replaced by -O-, -CO-, -HC=CH-, -C=C-, -COO- or -OCO-; m and n are 0 or 1; L1 and L2 are H or F; ring A1 trans-1,4- cyclohexylene or 1-4-phenylene; ring A2 is 2-fluoro-1,4-phenylene or as for ring A1; R1 and R2 are 1-12C alkyl, alkoxy, alkoxyalkyl, alkanoyloxy or alkoxy carbonyl or 3-9C alkenyl; rings A3-5 are 1,4-cyclohexylene, 1,4-phenylene or 2- or 3-fluoro-1,4-phenylene; x is 0 or 1 with F, when present, being in the 2- or 3-position; and A1 and A2 are a single bond, -COO-, -OCO- or -CH2CH2-. USE/ADVANTAGE - The presence of (I) (pref. at least 10 wt.%) allows the media to be used in various (including out-door) electro-optical systems such as displays, giving a reduced temp.-dependency for the electro-optical properties (esp. birefringence). Working temp. ranges, of more than 60 deg.C can be achieved, esp. when (II) is also present and when the media contain up to 4.5 liq. crystal cpds., Temp. dependency results for the new mixers and for Merck's ZLI-4171 are given.
Patent DE-4119670-A1 (DE)
Inventor: PODSZUN WOLFGANG DIPL CHEM DR
IPC: C10M171/00
Filed: 1991-06-14
Abstract: In an electroviscous fluid comprising a non-aqueous liquid as a dispersion medium, a dispersed particulate polymer and a dispersant, the improvement wherein the polymer contains polyether and (meth)acrylate units.
Patent DE-4120986-A1 (DE)
Title: Cover for manure pit for generating bio-gas
Inventor: KOEBERLE ERWIN
IPC: C12M1/107
Filed: 1991-06-25
Abstract: The cover system for containers open at the top, esp. manure pits for generating biogas, has at least two films (3,4) over each other secured with a gas-tight seal round the edge (2) of the pit. The upper film (3) is held outwards at a constant gas pressure of more than 1 atmos. to give it a stiff outwards convex profile. A sepd. intermediate chamber (5), with a variable gas volume, is between the lower film (4) and the convex-expanded outer film.     The outer film (3) is pref. a double film (6) with pref. flexible distance pieces (11) such as bubble film with a constant gas pressure of at least more than 1 atmos. in the spaces (9) between the walls (7,8) of the distancers, while the double film is curved stiffly outwards. A pressure-controlled connection is between the intermediate chamber (5) and the outer atmos.. At least one of the film materials (3,4,7,8) has a heat reflective surface, such as a mirrored surface, on the side towards the biogas pit. The outer (3) and inner (4) foils are assembled at the edge (2) of the pit or tank, on a protective underlay, and wound at least twice round the sealing edge and an angled profile to be secured by at least one further clamping ring.
Patent DE-4121167-A1 (DE)
Title: Attachment for driving thread inserts into wooden sleepers - consist of guide bush surrounding insert and providing support as insert is driven home
Inventor: PHILIPP ANTON
IPC: B25B27/14
Filed: 1991-06-24
Abstract: The attachment consists of a guide bush (1) located centrally under the screwing tool (6) and secured against rotation by vertically transversable guide rods (2). To contain the insert the bush has a parallel bore opening out into a conical mouth at the bottom end. The insert is first positioned in the predrilled hole by hand. The bush is lowered over the insert and the screwing tool wound down. When the insert has been driven home the screwing tool is reversed. ADVANTAGE - Since the screwing tool can remain fixed in the machine, downtime is reduced.  Damage to insert is avoided.
Patent DE-4127921-A1 (DE)
Title: Device for holding sliders in slide fastener mfg. -  has restraint mechanism to hold back slider holder in stable position
Inventor: YUNOKI AKIO
IPC: A44B19/64
Filed: 1991-08-23
Abstract: The device for holding a slider when doing up a continuous slide fastener chain (F) has a holder (10) which is movable vertically between a lowermost position where the holder holds the slider and a topmost position where the slide fastener chain (1) which is provided with fabric pieces is drawn in through the slider (4). A holder retaining device (16) is provided in the path of the vertical movement of the holder (10) and comprises a U-shaped frame (17) with base (17a) and opposite arms (17b,17b), and a pair of rotatable restraint mechanism (18,18) of which is attached to each of the distal ends of the opposite arms (17b,17b) and which are mounted together in one plane. On occupying the topmost position the slider holder reaches the rear faces of the rotatable restraint mechanisms between the arms. ADVANTAGE - The slider holder is held secure and prevented from wobbling.
Patent DE-4133092-A1 (DE)
Inventor: SEEBOLD RALF
IPC: H01H33/666
Filed: 1991-09-30
Abstract: A unit-pole vacuum switch (1) has, for each vacuum switching tube (10), a pole operating unit (5) with a lever arrangement to change the direction of movement generated by a drive device (3). A casing (16) of the pole operating unit (5) contains two toggle levers (21, 22) of which one (21) is coupled to the pushrod (12) of the vacuum switching tube (10) and the other (22) to a supporting lever (25) which acts on a contact pressure spring (32) via a pull-rod (30). In the on position, the toggle levers (21, 22) are close to dead centre. An adjuster (40, 42) makes it possible to adjust the toggle levers (21, 22) in relation to the supporting lever (25).
Patent DE-4135511-A1 (DE)
Title: Chain length adjustment facility for supermarket trolley storage - has chain stored in recess with lock unit and can be lengthened or shortened by removing retaining pin
Inventor: FUCHS PETER
IPC: A47F10/04
Filed: 1991-10-28
Abstract: A coin operated release mechanism of the type used with supermarket trolleys has a facility to adjust the coupling chain length to suit the application. The unit has a lock mechanism (II) within a housing (I) fixed to the handle (III) of the trolley. The lower section of the housing has a chain (2) with a pin (VI) that engages the entry point (VII) on an adjacent trolley. Chain may be stored in a recess (1) and is secured by a pin (3). The length of chain is readily adjusted. ADVANTAGE - Allows length adjusted to suit.
Patent DE-4139064-A1 (DE)
IPC: F25B49/02
Filed: 1991-11-28
Abstract: In a process for setting, controlling and monitoring the level of a refrigerant evaporator (3) fitted in a closed circuit of a refrigerator (1) and evaporating a mass flow of refrigerant (4) to form a sustantially dry power gas, a heatable measuring unit (11) is introduced into a power gas line (71) downstream of the refrigerant evaporator (3). The power gas flows around the measuring unit (11). It is heated to a temperature above that of the power gas. The impingement of drops of refrigerant upon the measuring unit (11) is determined by measurement of the energy needed to evaporate the drops of liquid. The measurement signal may be reliably evaluated if it is compared with a basic signal obtained from a first partial signal arising from the electronic noise of a measuring and evaluation unit (93) used to implement the process and a second partial signal arising from the flow of power gas passing the measuring unit (11), whereby the difference between the measuring and the basic signals is found and compared with an adjustable reference value which is set for the level of moisture of the power gas above which the power gas may be regarded as damp or wet.
Patent DE-4139788-A1 (DE)
IPC: A61C17/26
Filed: 1991-12-03
Abstract: An electric toothbrush comprises a handle part (1) and a push-on brush (4). From one end of the handle part (1) there projects the end of a hollow shaft (3) in which a toothbrush arbor (9) is coaxially arranged, the push-on brush (4) being adapted to be pushed on to the toothbrush arbor (9). The push-on brush (4) has a rotatable tuft of bristles which may be driven by a longitudinally reciprocating connecting rod. A gear (18) in the handle part (1) has two cams (23, 27) which are mutually phase shifted by 180 DEG . The first cam (23) displaces the hollow shaft (3) and the second cam displaces the toothbrush arbor (9) in the opposite direction.
Patent DE-4202116-A1 (DE)
Inventor: BUDAKER MARTIN
IPC: B62D5/04
Filed: 1992-01-27
Abstract: The power assistance for a steering system is provided by an auxiliary power source, e.g. an electric motor via a worm drive (15, 16) which drives coupling hubs (22 and 23) in opposite directions of rotation. According to the invention, the auxiliary power can be transmitted to a drive shaft via a shared clamp sleeve (27) which can be expanded polygonally by two rows of clamps (28 and 30) into one or other coupling hub (22 or 23). The clamp sleeve (27) is slotted to provide functional sections (A and B). Depending on the direction of rotation of the steering shaft (1), one or other of the functional sections (A or B) of the clamp sleeve (27) is always operational. The coupling devices (2) run in a lubricant, thus reducing wear. The novel steering system can be economically produced and requires little installation space.
Patent DE-4206900-A1 (DE)
Title: Sludge processing - using water-absorbent granular material and hydraulic bonding agent and additive to increase density to give construction material
Inventor: KADELKA FRIEDRICH
IPC: C04B28/02
Filed: 1992-03-05
Abstract: To process sludge, a water absorbent solid granulate material is added to a vol. of the sludge and mixed with it, to take up the water content and improved the sludge processing character. The density of the mixt. is increased to at least 1.2 t/m3 by added additives together with a hydraulic effective bonding agent to give a construction material, with no risk to the environmment with a compression strength of at least 12N/mm2 after hardening. Pref. the solid granule material is pref. finely-ground aerated concrete. The hydraulic effect bonding agent is pref. cement and/or hydraulic lime and caustic lime. The additive is pref. natural sand, chalk filler, a technical filler or other materials which raise the sludge density. A chemical neutralising agent is added to the sludge before the bonding agent and additives are mixed in with it. The operation is partially effected in a construction mixing process. USE/ADVANTAGE - The method is for processing harbour slick and the like, after water has been allowed to seep out of the collection tank, but which still has a high water content. The sludge is converted into a usual material which does not affect the environment.
Patent DE-4210820-A1 (DE)
Title: Sign forming system for video tape cassette recorder - has control for screen indicator and for recording instructions for sign data in sign forming mode
Inventor: HONG SUNG HYUN
IPC: H04N5/445
Filed: 1992-04-01
Abstract: A sign recorder codes sign data for their demodulation and for recording the demodulated data on a selected stereo audio track of a video tape. An audio playback picks-up the audio signals and sign data from the audio tracks and transmits them to a loudspeaker. A video playback picks-up video signals from a video track of the tape and demodulates the video signals. A sign transmitter supplies the sign dates from the recordings, or the sign dates from the audio playback. The data are superimposed onto the reproduced video signal from the video playback under monitoring by the control. ADVANTAGE - For recording sign data on audio track of video tape.
Patent DE-4217899-A1 (DE)
Title: System optimisation of fibre=optic transmission lines - varying optical transmission power until comparison confirms that system requirement is satisfied in both directions
Inventor: BEHR THORSTEN DIPL ING
IPC: H04B10/25
Filed: 1992-05-29
Abstract: The transmission lines have a transceiver (1,2) at each end so that two lines enable full duplex operation. The optical, transmission power of a first transceiver (1,A) in one transmission direction (block 25) is varied. In the second transceiver (2,B) the received optical signal is compared with a reference signal to produce the system demand (block 26). A first signal (B) is transmitted to the first transceiver (1,A) when the comparison shows that the system demand has been reached (block 27). The power variation is stopped when the first signal (B) is received. The above steps are repeated for the other transmission direction exchanging the roles of the first and second transceivers. ADVANTAGE - Automatically optimises system while satisfying system requirements.
Patent DE-4222031-A1 (DE)
Title: Liquid separation into streams - has concentric electrodes with a working ring zone between them
Inventor: LIVSHITS DAVID
IPC: C02F1/46
Filed: 1992-07-04
Abstract: To separate a fluid flow into streams contg. different matters, two electrodes (16,18) are used as coaxial veritcal cylinder tubes with different dias. (D,d), with a ring zone (21) between them as the working zone for the liq. to flow through. Each electrode (16,18) has at least one opening (17,19) at the circumference for the entry to an outlet channel (22,20). A cylindrical membrane (24), permeable to fluid and of an electrically neutral material, is in the ring zone (21) between the electrodes (16,18). A gas exhaust (7-10) is above the working zone (21). The liq. flow to the ring zone (21) is through the base so that it forms a rising tube with a number of upper openings (17,19) at the electrode (16,18) peripheries. A ring cylinder (15) is round the outer electrode (16), and a coaxial outflow tube (22) is within the inner electrode (18). The gas exhaust includes a gas trap (8). The membrane (24) is a synthetic material woven from viscous yarn, or a textile material such as a dense multi-layer cotton. Perforated cylinders of a strong material contain the membrane (24) for stability. A bell cap (3) is below the filling opening 1) to deflect the liq. into a ring flow stream, opening into the ring cylinder (25), with passage openings to the ring zone (21) between the electrodes (16,18). USE/ADVANTAGE - The system is for the provision of ion-enriched water for water softening, esp. sea water, and for lye recovery.
Patent DE-4223161-A1 (DE)
Title: Mechanical system for determining factor causing natural vibration of rotary or translatory machine work tool - fastens vibrating frame to ball-shaped member, located within complementary shell and couples member and shell with linkage
Inventor: SEIDEL BERND DR SC TECHN
IPC: G01H13/00
Filed: 1992-07-10
Abstract: A rotary or translational oscillator contains a vibration frame (1), rotary link, resonance spring with adjustable spring constant, equipment frame (4) movable translationally by a traction device, attachment devices and a strut. The natural frequency and oscillation direction are adjustable. The oscillation parameters are measured with vibration detectors and electronics and additional externally triggered vibrations can be stimulated to natural resonance. Rotary working elements can be mounted on the vibration frame which is attached to a conical counterpiece held by a conical shell element connected to it via a linkage and control device. USE/ADVANTAGE - Eg for rotary chisel, tooth of milling machine for metal or ground working, or knife of agricultural drum hacker. For use with machines and systems for which vibrations can ether be used or need to be suppressed. Construction and operating parameters of wedge-shaped and rotating working elements are determined wrt. their material parameters for min. or max. vibration intensity and at low cost.
Patent DE-4224505-A1 (DE)
Title: Engine and propeller of powered glider - are held securely in retracted position by safety latch unit released by pull cord
Inventor: GROB BURKHART DIPL ING
IPC: B64C31/024
Filed: 1992-07-24
Abstract: The glider has an auxiliary engine (3) driving a propeller (12). It has a safety latch mechanism to hold the power plant in a retracted position in a compartment in the fuselage (2) behind the pilot. The latch is at the end of the engine remote from the hinge (14) about which the unit pivots. There is a round peg (5) on the engine which engages under a latch member (4). A wire (6) may be pulled by the pilot to releases the latch. A damper (7) delays the return of the latch to its holding position after release. The latch has a sloping surface (8) to enable it to be pushed back by the peg when the engine unit is retracted. USE/ADVANTAGE - Engine and propeller of powered glider are held securely in retracted position.