baber/WOPTO huggingface dataset:
Patent DE-3925273-A1 (DE)
Title: Rolling track driven by flat belt - uses slide track for supporting belt without additional moving parts
Inventor: MISSELHORN WINFRIED
IPC: B65G13/07
Filed: 1989-07-31
Abstract: The rolling track has rollers arranged in succession in the conveyor direction and moving across the conveyor direction. Slit-like recesses are arranged at right angles to the conveyor plane and a common drive belt moves between a support and the rollers against the conveyor direction and sets the rollers in rotation through friction contact. The support is formed on the frame by a slide track (19) which is directly opposite the rollers (1).  These rollers can support friction rings (17) in the area of the belt (13). USE/ADVANTAGE - Additional parts such as moving rollers are no longer necessary to support the flat drive belt. Frictional forces which are proportional to the load are automatically adjusted between the belt and the transport rollers since the load is not supported in bearings on the frame but by the flat belt.
Patent DE-3929396-A1 (DE)
Title: Screwed joint for two-part projectile housing - has radial slots in one part to relieve stresses during firing
Inventor: SIPPEL ACHIM DIPL ING
IPC: F42B30/08
Filed: 1989-09-05
Abstract: A projectile has a housing which is made in two parts (24,20).  The first part (24) has a cylindrical flange (26) with an external screw thread which is screwed into the end of the second part (20).  When the projectile is fired from a gun, the acceleration imposed on the projectile causes a high stress in the region of  this screwed joint with consequent distortion of both parts. This stress is reduced by making a number of equally spaced radial slots in the cylindrical flange. These slots extend axially as far as the shoulder (34). USE - Projectiles.
Patent DE-3929461-A1 (DE)
Title: Rotary electric tooth-brush providing gum massage - has brush shaft with radial bristles rotation in either direction via electric motor
Inventor: SCHUMACHER HORST DIPL PHYS DR
IPC: A46B7/10
Filed: 1989-09-05
Abstract: The toothbrush has a brush shaft (6) provided with radially projecting bristles (7) over all or part of its periphery adjacent one end and coupled to an electric motor shaft (4) at the opposite end, via a plug-in coupling. The motor (M) allows the brush shaft (6) to be rotated about its longitudinal axis in a right-hand or left-hand direction. Pref. a shield encloses the majority of the brush shaft (6), with the exposed bristles (7), pref. exhibiting different lengths and/or hardness values along the length of the brush shaft. ADVANTAGE - Improved dental hygiene.
Patent DE-3932106-A1 (DE)
Inventor: STEKETEE JUN CAMPBELL H
IPC: B29C48/90
Filed: 1989-09-26
Abstract: A thin, flexible tubular membrane provides a heat containment tube 16 for inserting into and inflation within an underground conduit 10 to be repaired. Folded rigid thermoplastic pipe 22 is inserted into the tube 16 while hot and flexible. The tubular membrane 16 is pressurized to exclude unwanted fluids from within the existing conduit 10. Hot steam is injected into the tube 16 to heat the pipe 22 full-length externally and internally until flexible. The pipe 22 is then rounded and expanded against the walls of the conduit 10 with the tube 16 therebetween. The rounding and expanding of the pipe 22 is carried out progressively by moving a plug (Fig 5) through the pipe 22 and by injecting hot steam under pressure behind the plug. Methods and means for heating the pipe 22 during insertion (Figs 12-15); for repairing short sections of conduit using a comparable section of the pipe (Fig 17), an inflatable bladder and a heat containment tube (Fig 16); for interconnecting and sealing newly installed thermoplastic pipes in a main conduit and intersecting service conduit (Figs 7-9); and for relieving longitudinal stresses in the thermoplastic pipe after installation (Fig 6), are also disclosed. <IMAGE>
Patent DE-3935998-A1 (DE)
Title: Gold-doped silicon semiconductor device - with axially structured charge carrier life-time profile
Inventor: BEELER FRANZ DR
IPC: H01L21/22
Filed: 1989-10-28
Abstract: Semiconductor device has a crystalline silicon semiconductor substrate and an Au doping for charge carrier lifetime redn., the novelty being that the Au doping has a structured profile which is limited in the axial direction so in an axially limited region, it shows an over-proportional steep droo compared with an undisturbed Au diffusion profile. Prodn. of the device involves (a) introducing a Rh doping in the axially limited region; and (b) diffusing an Au doping from a first main face of the substrate so Au-doping and Rh-doping overlap at least in the axially limited region. ADVANTAGE - Axially structured charge carrier lifetime profiles can be produced by diffusion methods.
Patent DE-3937644-A1 (DE)
Title: IC engine camshaft hydraulic rotary angle adjuster - has locking device securing vaned wheel in initial angular position w.r.t. sliding vane wheel
Inventor: HUBER CHRISTIAN
IPC: F16D3/10
Filed: 1989-11-11
Abstract: The hydraulic adjuster for an i.c. engine camshaft provides an angular position w.r.t. a drive wheel.  A wheel (5) with radial vanes (4) is pref. mounted on the shaft, the vanes working in compartments (6) in a second wheel.  The two wheels are adjustable for angle w.r.t. each other by hydraulic pressure, the vaned one assuming an initial position (A) on starting. A locking device (13) secures the wheels together in the initial position.  It pref. comprises a sliding splined sleeve on one of the wheels, corotating with it and engaging mating grooves in the other wheel. ADVANTAGE - Simple and reliable prevention of a relative wheel motion on starting.
Patent DE-3938617-A1 (DE)
Title: Measuring mass concn. to ascertain extinction of aerosol - using photometer receiving proportional measuring signal along at least two optical paths
IPC: G01N15/00
Filed: 1989-11-21
Abstract: A measuring signal proportional to the mass concn. is received sequentially along at least two optical paths, one being longer than the other.  Taking into consideration the path lengths and the same extinction coefft. for both signals a null point measuring signal for a value without an aerosol is determined and compared with the rated value for the null point measurement signal for use as the basis for the following extinction measurements. A reflection arrangement (1) is used to return the radiation in the medium to be measured.  A variable slide arrangement (3) is provided by a computer controlled pneumatic reciprocable piston with the reflector at one end.  The latter is moved by the piston to provide two different optical paths w.r.t.  the radiation generating and receiving arrangement. USE/ADVANTAGE - Testing without direct engagement.  Long term measuring including in strongly contaminated atmospheres.
Patent DE-3940007-A1 (DE)
Title: Light signalling beacon for airports, roads, etc. - has its own independent power source with multiple photo-elements
Inventor: PRIESEMUTH WOLFGANG DIPL ING
IPC: E01F9/615
Filed: 1989-12-02
Abstract: The light signalling device (10) comprises a light emitter (11) having a container (12) which radiates light from at least one side; and a stand (13) which supports the signalling device (10). The signalling device (10) further comprises a voltage supply (15) as a network independent power source e.g. a battery or an accumulator. The power source comprises a number of photo elements (14) arranged on the signalling device (10). USE/ADVANTAGE - Used as warning or indication light e.g. in airports, on roads etc. - Inexpensive and reliable.
Patent DE-3941593-A1 (DE)
Title: Azolyl:methyl:cycloalkanol derivs. - for use as fungicides and growth regulators
Inventor: SEELE RAINER DR
IPC: C07D249/08
Filed: 1989-12-16
Abstract: Azolylmethylcycloalkanol deriv. of formula (I), their acid addn. salts, and metal complexes tolerated by plants are new. In (I), Y = =C=CH- or =CHZ-; Z = O, S, SO, SO2, or NR1, R1 = 1-8C alkyl, phenyl, biphenyl, naphthyl, heteroaryl, benzyl or 3-8C cycloalkyl each of these gps. being opt. mono- di or tri-substd. by halogen, NO2, PhO, amino, 1-4C alkyl, 1-4C alkoxy, or 1-4C haloalkyl) or tetrahydropyranyl; or if Y = =CHZ-, R1 can be H; R2 and R3 = each H or 1-4C alkyl or if Y = =C=CH- R2 and R3 can together form =CHR1; n = 2-5; and X = CH or N. USE/ADVANTAGE - (I) are fungicides with a broad spectrum of active against phytopathogenic fungi, effective against e.g. trysiphe graninis in cereals, Venturia inaequalis or apple, Botytis cinerea on strawberries and vines and pyriculoria oryzae on rice. Suitable dose are 0.02-3kg (I)/ha. (I) can also be used as plant growth regulators. For leaf and soil treatment, suitable doses are 0.01-10 kg/(I)/ha.
Patent DE-4001656-A1 (DE)
Inventor: UTECHT MANFRED DIPL ING
IPC: H02K7/16
Filed: 1990-01-18
Abstract: The speed of a supercritically operated electric machine can be increased over a range between a first critical speed and a second critical speed. To this end, the shaft (11, 12) of the electric machine is elastically mounted on either side of the rotor (7). The flexural strength of the shaft (11, 12) between the rotor (7) and the second bearing (8) is substantially greater than in the region between the rotor (7) and the first bearing (9). As a result, the second critical speed shifts to higher speeds more readily than the first critical speed, and the difference between the first and the second critical speeds, and thus the maximum range over which the speed of the machine can be controlled, increases. The invention can be applied in supercritically operated, variable-speed electrical machines.
Patent DE-4001893-A1 (DE)
Title: Optical system for forming image of nerve cells of retina - utilises phase difference of infrared radiation, made visible via interference or polarisation microscope
Inventor: DODT HANS-ULRICH DR
IPC: A61B3/125
Filed: 1990-01-23
Abstract: The optical system forms an image of the nerve cells of the human retina.  The system consists of a microscope which is illuminated from above with infra-red radiation.  The colourless cells are made visible as phase difference of the infra-red radiation which is produced by means of an interference or polarisation microscope. Infra-red radiation from a source (L) is directed onto a lens (K) which converts it into a parallel beam.  This beam passes through an interference filter a shutter and a polariser.  The radiation is then reflected into the patient's eye.  Light reflected from the retina is then directed on to a television tube (TV) which is connected to a video which displays an image of the nerve cells. USE - Ophthalmy.
Patent DE-4003462-A1 (DE)
Title: Power amplifier with negligible phase twist - uses control for second controllable current source, between positive voltage source and amplifier output, adjustment
Inventor: KEMPE MANFRED DIPL ING
IPC: H03F3/50
Filed: 1990-02-06
Abstract: The amplifier for a variable load has an npn transistor, whose collector is coupled to plus pole of an operational voltage source, the base is coupled to the amplifier input and the emitter to the amplifier output. The collector current is directly or indirectly evaluated by a suitable component (5). The current of a second controllable current source (Q2), between the plus pole of the voltage source and the amplifier output (A), is adjusted by a control (7) such that current increase of the first current source (Q1) results in a reduction of that of the second current source and vice versa. The max.  and the min. value ratio of the transistor collector current is held low by a sufficient reference value (IC). USE/ADVANTAGE - For complementary emitter-followers as amplifiers, with small voltage drop between input and output terminals.
Patent DE-4003923-A1 (DE)
Title: Light scattering body for decorative effects - in which transparent plastic is heated to form internal bubbles which refract laser light
Inventor: LAURENZ ANDREAS
IPC: F21S10/00
Filed: 1990-02-09
Abstract: The component is produced by heating a transparent plastic e.g. 'Plexiglas' (RTM) to 150-200 deg.C for 30-60 sec. Air and other volatiles in the plastic expand to form bubbles which when the body is cooled act as light refractors. A laser light (e) is passed through a circular section (d) of the plastic body while it rotates and a changing patterned effect is seen on a flat surface (f).
Patent DE-4006986-A1 (DE)
Title: Information handling system for disc memory - has buffer memory with facility for increased data throughput
Inventor: OGINO AKIHITO
IPC: G11B27/30
Filed: 1990-03-06
Abstract: The information control system for discs has a head for the writing or reading of data (31), a controller to generate positioned information for the head, a flipflop (23) to generate an interrupt to the controller when the head is in position, a buffer memory (16) to store the data and a control unit to read the information from the disc. Information from a specific track is entered into the buffer and is read when the controller generates a specific command.  The track has marker signals to provide a synchronised mode of operation and the transfer from the buffer takes place at a rate higher than the disc access rate. ADVANTAGE - Has information handling system to increase throughput.
Patent DE-4012409-A1 (DE)
Inventor: KARDORFF UWE DR
IPC: C07D405/12
Filed: 1990-04-19
Abstract: Hydroquinone diethers of the general formula I <IMAGE>  in which the substituents have the following meanings:     R<1> is hydrogen, halogen or C1-C6-alkyl; A and B are optionally substituted methylene, ethylene or propylene;     X and Y are optionally substituted heteroaryl, their preparation, and pesticides.
Patent DE-4017737-A1 (DE)
Title: Electronically controlled fine spray drawing appts. - has hollow telescopic arm remotely controlled by hand-held IR transmitter with programmable operating elements
Inventor: PAECH GISBERT
IPC: B05B12/00
Filed: 1990-06-01
Abstract: The drawing appts. is an electronic table-top type remotely controlled by an i.r. unit comprising all the programmable operating elements. The main body (1) is mounted on a socket (2) by ball bearings (9) for horizontal circular movements. A hollow telescopic arm (24) is inserted in the main body for drawing lines and surface covering tasks by attachment and withdrawal. The spraying appts. processes all the liquids and driers from the containers (14, 15, 16,17) to  an iris lamella ring (32). The hand-held remote control unit stores control functions, constant working areas and continuous working functions. These can be controlled by switches and a trail run and allow a sensor spherical control to man continuously and only operated when "start" is signalled. The socket houses a 24 volt accumulator (4) and a proximity switch (3). USE/ADVANTAGE - All graphic figures from line and circle drawing to surface working for colouring, etching, sticking and applying powder. Sharp contours with no drops or trailing off.
Patent DE-4017755-A1 (DE)
Title: Secure current supply for DC load - uses back-up battery and dynamic rectifier operated from mains or back=up device
IPC: H02J9/06
Filed: 1990-06-01
Abstract: The current supply a lead acid battery (17) providing a back-up current supply, automatically switched in upon failure of the network supply. A dynamic rectifier (8) is operated from the current network (1) or a current back-up device (10), the battery capacitance ensuring that superimposed harmonics are equalised, to prevent a negative feedback effect and for covering the peak load of the DC load (19). USE - For air conditioning system in digital exchange.
Patent DE-4026796-A1 (DE)
Title: Anisotropic permanent magnet with good temp. resistant properties - made of alloy of iron-cobalt-boron- rare earth
Inventor: WADA MASAMI
IPC: H01F1/08
Filed: 1990-08-24
Abstract: Anisotropic permanent magnet is made of an alloy R-Fe-Co-B where R is at least one of the rare earth group contg. Nd. The alloy contains 13-15 wt.% R; 10-20 Co; 5-7 B and remained Fe. The material has, after prodn., a relative density of 95% or more, a residual magnetism of at least 9.5 kG, a coercive force of at least 10 KOe, a temp. coefft. of residual magnetism of -0.09%/deg.C or less and a temp. coefft. of coercive force of -0.5%/deg.C or less. ADVANTAGE - Has excellent temperature resistant properties and does not lose residual magnetism and coercive force as the temp. is increased.
Patent DE-4026982-A1 (DE)
Title: Drum brake adjustment system - has layers integrated in bridge piece of brake shoe and has segment, support block, spacer piece and tension spring
Inventor: PANEK CLAUS-P
IPC: F16D65/52
Filed: 1990-08-25
Abstract: The adjustment for a drum brake has several layered parts (1,2,3) integrated in a brake shoe bridge-piece (4). A bridge-segment (2) is movably mounted between the top (1) and bottom (3) parts and is exposed to the mechanical stress of the control (10) and, when not in operation sits on a support-block (12). In the peripheral direction of the brake shoe the segment (2) is serrated. A spacer piece (9) can be lengthened but not shortened is parallel to the control (10). One end of a tension spring (8,11) tightening the brake shoes on one side of the control is suspended in a hole (16) in the segment (2). USE/ADVANTAGE - The control operates automatically when the brake linings are worn.
Patent DE-4028434-A1 (DE)
Title: Polluted structure repair method -  renders expansion-joint material hard and brittle by sudden freezing before removal
Inventor: DAERR GEORG MICHAEL PROF DR IN
IPC: E04G23/02
Filed: 1990-09-07
Abstract: The method repairs structures exposed to pollutants and with seams filled with permanently-elastic expansion-joint material. This material is first mechanically broken or driven out of the seams, after which the structure components are decontaminated. Immediately before mechanically driving out a section of the joint material, this is suddenly cooled to a temperature well below 273K, causing it to harden and become  brittle. USE/ADVANTAGE - Min. disturbance and environmental pollution during repair of contaminated structures.
Patent DE-4029049-A1 (DE)
Title: Rainproof shopping bag - includes transparent PVC hat cloak and overshoes stowed in pockets when not required
Inventor: SCHURER ELEONORA
IPC: A45C9/00
Filed: 1990-09-13
Abstract: The rainproof shopping bag has three small external pockets, together with a cloak, hat and overshoes, all of soft transparent PVC. These are stowed in the pockets when not required and are rapidly tied to prevent them blowing off. ADVANTAGE - Easily taken anywhere. (3pp Dwg.No.1,2,3,4/4)
Patent DE-4029229-A1 (DE)
Title: Vehicle seat with control levers - has gear lever and handbrake in bearings in seat itself
Inventor: KRUEGER HELMUT
IPC: B60N2/02
Filed: 1990-09-14
Abstract: The seat is for a vehicle having other control levers such as gear lever and handbrake. One or more of these levers (42, 43) work in bearings in the seat itself (40). They can be mounted in its bottom part, protruding sideways from it and on opposite sides. Where the seat is adjustable, they can be in the adjustable part, acting via articulated joints. USE/ADVANTAGE - Simplicity of installation with controls ready to hand.
Patent DE-4034350-A1 (DE)
Title: Motor vehicle rear wheel suspension - has actively controlled steering effect imparted to wheel via transversely sliding transverse lower rear link arm
Inventor: BUFLER ERNST DIPL ING
IPC: B60G3/20
Filed: 1990-10-29
Abstract: The vehicle rear wheel suspension has upper (5), lower front (6, 6') and lower rear (7, 7') transverse link arms and a longitudinal link arm (2, 2') connecting a wheel support (4, 4') to a vehicle (9, 10). The longitudinal arm is torsionally weak and horizontally flexible. The upper transverse arm is set behind the lower front transverse arm in the longitudinal direction; both are rigid. The lower rear transverse arm is able to slide transversely, in response to an active control member (10), to impart a steering effect to the wheel (1, 1'). ADVANT - Rear wheel orientation can be opt¦mised for all driving conditions.
Patent DE-4101031-A1 (DE)
Title: Horizontal spray-film evaporator - evaporator tubes in tube bundles are easily withdrawn from evaporator housing
Inventor: EL-ALLAWY MOHAMED MAGDY
IPC: B01D1/16
Filed: 1991-01-16
Abstract: New horizontal-tube evaporator has tubes which are fitted to the evaporator housing so as to be easily removable. The tubes may be in bundles in which the tubes are connected together by tube plates at either end of the bundles, and bundle(s) is removable from the housing. The tubes or tube-bundles are removed from the housing by withdrawing them horizontally parallel to their axes, and rollers or low friction mountings are in the housing to assist this process. Plastic tube plates are used and the tubes are sealed to the tube plates by lip- or O-ring-seals, or may be attached to the tube plates by an adhesive. USE/ADVANTAGE - Used in horizontal spray film evaporators esp. used in concn. of deposit-forming materials e.g. solns., waste water etc. and in the desalination of sea-water. Design allows the tubes and the interior of the evaporator to be easily accessed for cleaning, and the down-time for maintenance is therefore reduced.
Patent DE-4102376-A1 (DE)
Title: Optical-analyser measuring appts. pref. differential refractometer - has differential cuvette between optical elements in beam path of light source and selectively locatable receiver
Inventor: NEBE WOLFGANG DR RER NAT
IPC: G01N21/41
Filed: 1991-01-28
Abstract: The output signals of the receiver (7) provide position information and, either separately or combined, a sum or amplitude value and a value for a partial width of the analysis signal. The imaging optical element following the differential cuvette (5) can be a lens or mirror (8). The latter sends the light from the source (1) once again through the cuvette but offset at right angles to the deflection in the latter. An optical fibre (11) can be used to provide a reference signal, its incident end being placed near the incident aperture (3) of the measuring appts. Its emergent end leads to another receiver (12). The main receiver is a strip type, e.g. using CCD lines. USE/ADVANTAGE - Avoids use of movable components. Highly sensitive registration of refractive indices over wide range. Compact and flexible, e.g. can also measure transmission and dispersed light levels.
Patent DE-4107195-A1 (DE)
Inventor: ISHIDA YOSHIHIRO
IPC: G02C7/02
Filed: 1991-03-06
Abstract: The invention relates to a lens for presbyopia having a front face of a smaller radius of curvature than its rear face, and which has neither short-distance nor intermediate-distance aberration. According to the invention, the front face (11F) of the lens (11) has a refractive index which is corrected in succession while the face of the lens moves radially outwards from the geometrical centre (12) of the lens so that the lateral magnifications for all the principal rays are always equal to the lateral magnification for a paraxial extent (range). The invention applies especially to the correction of presbyopia. <IMAGE>
Patent DE-4107956-A1 (DE)
Title: Intelligent network for handling wave signals - has processing structure allowing comparison of wave signal parameters used to control activation and blocking of transmission
Inventor: HESS KARL DR
IPC: G06N3/04
Filed: 1991-03-13
Abstract: An intelligent cell forms the basis of a network structure for the processing of freely selected input information. Each cell is configured for operation as both a receiver and transmitting unit and signals are handled and transmitted as oscillations. The processing function of the cells provides a comparison between the squared value of the direction inverted and space reflected wave signals and the value of the locally existing waves. The comparison process is used to control the process. USE - Processing and transmission of wave signal.