baber/WOPTO huggingface dataset:
Patent DE-3930067-A1 (DE)
Title: Optical signal transmission system - uses VCO providing modulated carrier fed to PLL at reception side
Inventor: ENGEL GERHARD DIPL ING
IPC: H04B10/2507
Filed: 1989-09-09
Abstract: The signal transmission system has an electro-optical transducer at the transmission side and an opto-electrical transducer at the reception side. A carrier signal modulated with the information signal is provided at the transmission side via a voltage-controlled oscillator, the reception circuit having a phase-locked loop, contg. a phase detector, a regulating amplifier, a low-pass filter and a voltage-controlled oscillator. The output signal from the optical transmitter is fed to the latter phase detector, with the voltage-controlled oscillators on both sides exhibiting identical voltage/frequency characteristics. USE/ADVANTAGE - Good signal/noise ratio, with low signal attenuation or distortion. Optical telecommunications. Transmitting audio information for loudspeakers in motor vehicle separate from radio receiver.
Patent DE-4000411-A1 (DE)
Title: Capacitive voltage converter with voltage divider - has resonance choke coil and intermediate converter connected at divider point
Inventor: RAUPACH PETER
IPC: H01F38/26
Filed: 1990-01-09
Abstract: The capacitive voltage convertor consists of a capacitive voltage divider (2) whose divider point (TP) is connected to a resonance choke coil (11) and an intermediate convertor (8). At least the overvoltage coil (7) of the intermediate convertor is embedded in setting resin. The divider point is connected first to the overvoltage coil of the intermediate converter, at least part of which is connected in series with the overvoltage coil of the resonance choke coil. The intermediate convertor with all its coil and core parts is embedded in a block of resin exposed to the atmosphere. The block carries the voltage divider via a flange connection. ADVANTAGE - Construction of capacitive voltage converter is rationalised using reliable and extremely compact design.
Patent DE-4005520-A1 (DE)
Title: Evaporator for water purificn. - has vertical plastic, metal alloy, graphite etc. heat exchanger pipes used to provide energy for integrated electro-coagulator
IPC: B01D1/12
Filed: 1990-02-22
Abstract: Evaporator (1) for water from which oil and contaminants have been removed has a bundle of heat exchanger tubes (3), over the outside of which a heat exchanger medium is passed. The tubes consist of plastic or metal alloy or graphite. The water is initially treated between electrodes (8) in an electro-coagulator, to remove oil, etc. and to preheat it to a temp. necessary for subsequent evapn. when passed to the evaporator. Tubes are 6-12mm inside dia. and are spaced at 8-20mm. USE/ADVANTAGE - Process water purificn. with recovery of valuable contaminants, e.g., Cr.
Patent DE-4007237-A1 (DE)
Inventor: LAZARO VELA SANTIAGO
IPC: E05D11/10
Filed: 1990-03-07
Abstract: A hinge, e.g. for mounting the cover on a cooker plate comprises two pieces 2 and 3 each having a cylindrical body 8 and 9 respectively, provided with a central and axial through hole 11 and 12 for the inserting of a connecting screw with the elements necessary for the adjustment of the pressure and friction between the pieces, their mutually engaging surfaces being formed with angled segments 10 so as to resist rapid falling movement of the cover. The piece 2 has threaded blind bore 13 for receiving screws for mounting to the cover with an interposed force-distributing strip. The piece 3 has a slot 15 to overly an aeration groove in the cooker plate. <IMAGE>
Patent DE-4010714-A1 (DE)
Title: laminated plastic sheet - has base sheet of recycled plastic, coated on at least one side with decorative sheet of different material
Inventor: WAHL BERND
IPC: B32B27/08
Filed: 1990-04-03
Abstract: Sheet (I) consists of a plastic-contg. substrate (II) coated with a decorative sheet (film, laminate) (III) made of other materials. (II) consists of sec. plastic material (recycled plastic). Prodn. of (I) comprises: (a) prodn. of a fully plastic sheet (possibly corrugated on one side) from (II), (b) roughening and levelling the surface with a highspeed grinder (belt grinder), (c) electronic or chemical treatment to produce surface oxidn. (to increase adhesiveness), (d) application of adhesive (by knifing, roller, etc. or with automatic mixers and metering devices), (e) laying on sheet (III) and (f) pressing the two together (multiplaten press). (II) is pref. coated on both sides with (III), and bonded with a 2-component adhesive; or two substrates (II), each coated on one side with (III), are pref. bonded together with a plastic foam (polyurethane foam) on the uncoated sides. Oxidn. stage (c) is carried out in a corona unit or by singeing with a propane or butane flame. USE/ADVANTAGE - Provides laminated sheet useful for a wide range of applications, based on recycled plastic. External chemical and mechanical properties of (I) are determined by (III), which can also provide colour or profiling (e.g. as shrink film), and the stability is determined by (II) (which contains polyethylene etc.); e.g. surface temps. up to 80 deg.C are readily tolerated with no effect on the core, and (I) can be used under moist conditions since (II) is not subject to swelling.
Patent DE-4011908-A1 (DE)
Title: Multi-way control valve - has double action servo cylinder at end of valve element
Inventor: STOLL KURT DIPL ING
IPC: F15B13/04
Filed: 1990-04-12
Abstract: The multi-way valve has a long housing (1) with a number of control ducts served by valve elements  on a long support shaft (11).  The end of the shaft is  fitted with a piston whose two surfaces are subjected to  alternate pressures via a simple switching control. this  eliminates any return springs and provides a positive  valve action. The switching is via two solenoid valves (30,30') which are supplied from the same servo feed bus.  The ducts to the two sides of the servo piston  are integral to the valve housing and are short.  No external pipework is required. ADVNATAGE - Compact design, positive valve action.
Patent DE-4012257-A1 (DE)
Title: Open door securing fixing - has resilient drive actuated by eccentric on handle giving over centre position
Inventor: HATLAPA ROLF
IPC: E05C17/44
Filed: 1990-04-17
Abstract: The stop secures a door in any desired open position using a resilient thrust drive (6) in the bottom part of the door and which can be pressed against the floor. This is actuated by the door handle (3), which swings up above its opening and rest positions. It has an eccentric by which it is coupled to a thrust lever (8) acting via a linkage (9,11) on the drive. With the latter engaged, the thrust lever is in an over-centre position on the eccentric. ADVANTAGE - Simple operation by existing components.
Patent DE-4016141-A1 (DE)
Title: Bearing bush fitted in rigid housing - has recesses in bore of bush to receive lubricating oil in hydrostatic bearing
Inventor: BREGENZER SIEGFRIED
IPC: F16C32/06
Filed: 1990-05-18
Abstract: The hydrostatic bearing, which is lubricated with oil supplied at a high pressure consists of a bearing bush (1) which is a force fit, preferably a shrink fit, in a rigid outer housing (2). The inner surface of the bearing bush (1) has recesses (3) which receive the lubricating oil. These recesses (3) are connected to grooves (5, 6) in the inner surface of the bush (1) by means of radial holes (10) and by grooves (11) in the outer surface of the bush (1). The chambers formed by the grooves (11) between the bearing bush (1) and outer housing (2) are connected to outlet grooves (21, 22) to prevent any build-up of pressure which could loosen the fit of the bearing bush (1) in the housing (2). USE - Hydrostatic bearings.
Patent DE-4016255-A1 (DE)
Title: Roller guides for bandsaw blades - are pressed against edge and sides of blade in region of workpiece
Inventor: KLEIN HEINZ
IPC: B23D55/08
Filed: 1990-05-19
Abstract: The blade (1) of a bandsaw is guided by means of rollers in the region of the balde which is in contact with the workpiece (7). The rollers (9) are retained by endless chains and run along guide tracks in support blocks (2,3). Two blocks (2) press rollers (9) against the edge (4) of the blade (1) opposite to the teeth. Two pairs of blocks (3) press rollers (9) against opposite sides (5,6) of the blade (1) on each side of its point of contact with the workpiece. The roller support blocks (2,3) are rigidly attached to the frame of the bandsaw machine. USE - Bandsaws.
Patent DE-4024063-A1 (DE)
Title: Drive for motor vehicle engine accessories - consists of epicyclic gear train with variable speed drive to sun wheel
Inventor: MANNES WERNER
IPC: F16H37/08
Filed: 1990-07-28
Abstract: The IC engine of a motor vehicle drives a pump (15) through an epicyclic gear train (10). The pump is connected to the cage (12) of the epicyclic gear. The planetary pinion (13,14) mesh with the internal teeth of the ring gear (9) which has external teeth which mesh with the gear wheel (8) on the drive shaft (4). The rotational speed of the pump can be varied independantly of the engine speed by a steplessly variable drive (1) which drives the shaft (3) which is connected to the sun-wheel of the epicyclic gear. USE - Drive for pump on internal combustion engine.
Patent DE-4024440-A1 (DE)
Title: Vertical winnowing machine impeller with curved vanes - has step formed between impeller outlet duct and outlet chamber
Inventor: NIED ROLAND DR ING
IPC: B07B11/06
Filed: 1990-08-01
Abstract: The vertical winnowing machine has a rotating winnowing impeller (11). It has curved vanes which cause the material being winnowed to flow radially inwards in the opposite direction to the centrifugal force and then to flow away from the impeller (11) in the axial direction. The material flows out through the duct (20) into the outlet chamber (21). The cross-sectional area of this outlet chamber (21) is significantly greater than the cross-sectional area of the outlet duct (20) so that a step (22) is formed between the duct (20) and chamber (2). USE - Winnowing machine.
Patent DE-4033131-A1 (DE)
Title: Torque damper for power transmission - consists of two coaxial flywheels with damper between and ball bearing with two flywheels
Inventor: KAMIYA MASAKAZU
IPC: F16F15/12
Filed: 1990-10-18
Abstract: The absorber for a change in torque consists of two coaxial flywheels (2,6) between which is at least one damping-mechanism (11).  A hysteresis ring assembly (13) exerts pressure on the two flywheels in opposite directions from each other. A ball bearing (7) between the two flywheels (2,6) has an inner and outer race between which are pivot mounted balls (28).  Entry grooves for the balls are formed in the outer and inner races (27,26) opening towards the hysteresis ring assembly (13). USE/ADVANTAGE - The absorber for a change in torque is incorporated in the transmission path of a vehicle, industrial vehicle or ship.
Patent DE-4036267-A1 (DE)
Title: Buttonhole screw with screw driver - has two or more holes punched out of side and has self cutting pins
IPC: B25B15/00
Filed: 1990-11-14
Abstract: The buttonhole screw with a screw-driver incorporates two or more punched-out parts to one side of the middle of the screw head which has no slit in it. The pins of the screw driver mill or cut with a supporting sloping cut (2), a plane cut, drilling cut as the screw head is recessed or they have a shorter cylinder pin. The screw driver's shaft has a hole in or narow part for fixing the shaft into a drilling-machine or into a handle. ADVANTAGE - The screw is self-cutting and is turned not by a slit in the head, which is absent, by two or more holes punched out in the side of the threaded shaft's axle.
Patent DE-4039349-A1 (DE)
Title: Convection drier rotary air fan - has rotary housing with axial or radial outlets
Inventor: LINDEMANN DIETER
IPC: F26B21/02
Filed: 1990-12-10
Abstract: The rotary fan mixes and moves air in a convection drier. The fan housing (2) rotates, and has radial, or axial air outlets (4). Adjustable shutters (3) can be provided at the outlets. ADVANTAGE - Reduced drying time, power consumption, and noise level.
Patent DE-4108924-A1 (DE)
Title: Cultivator moving over uneven ground - has vertically adjusting support wheels along swivel axis
Inventor: FIMPEL THOMAS
IPC: A01D78/10
Filed: 1991-03-19
Abstract: The cultivator (3) has one ore more inplements eg swathers (4) fixed on a support (2) movable along the ground (1). At least one implement is adjustable transversely to the ground on the cultivator by means of the support wheels (27). The swivel axis (25) for the support wheels runs across the rotary axis (26). The implement is connected to the support (2) or another component fixed on the vehicle frame by one or more joints (7,9). The support can be connected to an intermediate support (24) for the wheels (27) by a double lever (8) having horizontal joints at end end. ADVANTAGE - The implements can be adjustable automatically across the surface of the ground whilst maintaining ground contact.
Patent DE-4108934-A1 (DE)
Title: Smoke collector duct with permeable filtration wall - for purifying meat and fish smoke-house exhaust fumes
Inventor: KERN JOHANNES
IPC: B01D53/04
Filed: 1991-03-19
Abstract: Process for purificn. of exhaust gases discharged from vents during the curing of foodstuffs in smoke houses, being novel in that a gas collector is arranged between the smoke chamber and the vent outlet, which serves several adjacent chambers, each of which has at least one exhaust filter partition wall, by means of which each of the chambers is divided into smoke-feed and smoke-discharge sections. USE/ADVANTAGE - Process for purifying the exhaust smoke from fish and meat smoke-houses etc., to comply with factory emission regulations, utilising a simple box type modular construction gas collection system.
Patent DE-4113433-A1 (DE)
Title: Linear regulated power supply for antenna measuring equipment - uses two=stage rectification and comparator maprator-limiter circuits to enable lightweight construction
Inventor: UFTRING KARLHEINZ
IPC: G05F1/569
Filed: 1991-04-25
Abstract: A linear regulating power supply contains two stages: the first comprises a mains input transformer (Tr) and rectifier (GL), producing a nominally constant rectified DC voltage which feeds the second stage. This uses a comparator circuit (K1) to sample the output voltage (via R5) and compare it with the regulator input voltage (via R1,R2) and accordingly drives the control input (T2) of the regulator (T1). A second comparator circuit (K2) limits the output voltage (via R6,T2,T1) when load current falls. USE/ADVANTAGE - Portable antenna-measuring equipment. Allows lightweight construction. Battery operation of second stage possible.
Patent DE-4113871-A1 (DE)
Title: Thumb stop for clarinet - can be adjusted in both longitudinal and transverse directions
Inventor: KOOIMAN TON
IPC: G10D9/00
Filed: 1991-04-27
Abstract: The wind instrument, such as a clarinet, is provided with a thumb support which consists of a grip plate (5) which is attached to an intermediate plate (9) by a dovetail joint. The intermediate plate is attached by screws to a saddle plate (6) which has a concave surface to match the curved surface of the clarinet. A thumb stop (4) in the form of a small pad (32) is attached by a special bolt (20) to the intermediate piece. The upper end of the bolt (20) is bent to a U-shape and the outer end of the U-shape is formed as a ball (23) which fits in a socket (26) in a block (24) to which the thumb stop is fastened. The grip plate (5) is so mounted that it can be positionaly adjusted in both the longitudinal and the transverse directions. USE/ADVANTAGE - Thumb stop for clarinet with longitudinal and transverse adjustment.
Patent DE-4117119-A1 (DE)
Title: Optical gating between light source and recording surface - has electro optical photoconducting material controlled by electrical field to regulate output transmission
Inventor: GOETH ALWIN DIPL PHYS
IPC: G02F1/055
Filed: 1991-05-25
Abstract: The optical gating device is produced using an electro optical photoconducting material (7) that is a ceramic of lead-lanthanum-zirconate-titanium (PLZT). The units are formed with surface electrodes (8, 9) and are exposed to white light (2). In the shadow region beneath the electrodes charge carriers are not released. When an electrical supply is applied a field is produced to cause release of free charges (13) to control the transmission. ADVANTAGE - Provides constant and high contrast ratio.
Patent DE-4124280-A1 (DE)
Title: Arithmetic circuit only using denominational representation, in octal code - contains pulse circuit controlling parallel addition or subtraction and shift register.
Inventor: MERKLE PAUL
IPC: G06F7/575
Filed: 1991-07-22
Abstract: The arithmetic circuit forms result in real binary manner for multiplication and division. The real binary result is converted into octal form by forming 3 cross rows, using two shift registers (3,4). The circuit contains a pulse circuit with at least 3 outputs which control the parallel addition or subtraction. The pulse circuit controls the addition or subtraction process and the shift registers with different clock signals. USE/ADVANTAGE - For processing octal numbers. Produces real binary products and dividends.
Patent DE-4124425-A1 (DE)
Title: Stator pole construction for electric motor
Inventor: BURGBACHER MARTIN
IPC: H02K29/00
Filed: 1991-07-23
Abstract: The commutatorless direct current motor has a substantially cylindrical, external permanent magnet rotor having north poles (2) and south poles (13). The rotor surrounds a substantially cylindrical stator (14) provided with main poles (10) between with auxiliary poles (15) are interspersed. An annular gap (20) is defined between the rotor and the stator.  To reduce magnetic or reluctance caused fluctuation of the motor torque each main pole (10) of the stator has an angular extent which substantially corresponds to that of a rotor pole (12,13). Furthermore, the stator periphery is provided with protuberances (17) arranged such that permanently magnetically caused components of torque ripple are reduced. Contour corrections 16 are also provided.
Patent DE-4125718-A1 (DE)
Title: Monocrystalline semiconductor material photodiode module - has parallel line detectors as strips formed from monolithic block
Inventor: WELSER WOLFGANG
IPC: H01L31/0232
Filed: 1991-08-02
Abstract: The module is formed from a monocrystalline, semiconductor monolithic block for photoelectric transducing of impinging energy by wide range, parallel, line detectors. The latter are formed by strips (2) work out from the block (1), forming between them opposite, parallel reflection walls (3, 4) with <110> surface structure. On the strip top and lower sides are formed implantation layers (5, 6), on laminates, such that the radiation impingement angle in selectiveoy tilted w.r.t. the parallel reflection walls. Pref. monocrystaline semiconductor silicon is used for the photodiode, with chemical etching of the strips. ADVANTAGE - Increased quantum radiation yield and efficiency.
Patent DE-4129885-A1 (DE)
Title: Reprocessing powders and granulates - from polymeric wastes, by mixing with starting materials and treating
Inventor: MENGES GEORG
IPC: C10L1/32
Filed: 1991-09-09
Abstract: Reprocessing powders and granulates produced from polymeric waste is described in the parent patents DE4017089 and DE4038897. Here the powders/granulates are mixed in the starting materials and treated with them. The polymeric waste is in the form of a melt. USE - The powders/granulates are mixed in the starting materials for refinery, cracking, reforming or hydrogenation plants and can be used to mfr. fuels, oils or plastic starting materials
Patent DE-4131981-A1 (DE)
Inventor: WOLF JUERGER
IPC: H02P7/29
Filed: 1991-09-26
Abstract: In an electrical device, an electricity consumer (2) is powered by a battery (B) via an electronic switch (21). To indicate the state of charge of the battery there is a display (9) and a timer (5) ascertains the period for which the consumer (2) is connected to the battery. At the end of a given period of connection of the consumer to the battery (B), when the display (9) shows a zero state of charge, the timer (5) cuts the electricity consumer (2) from the battery (B) via the electronic switch.
Patent DE-4136470-A1 (DE)
Title: Formation of two streams of tobacco from single stream - by alternate operation of two jets of air on opposite sides of single stream
Inventor: HEITMANN UWE
IPC: A24C5/39
Filed: 1991-11-06
Abstract: The machine used in the tobacco industry is supplied with tobacco (3) in the form of a single continuous stream which is driven over a concave surface (2) by a jet of air (6) from a nozzle (4). This single stream (3) of tobacco is divided into two separate streams (11a, 11b) by two jets of air (28a, 28b). The jets of air are produced by nozzles (27a, 28b) mounted on opposite sides of the single stream (3). The nozzles are operated so that they produce jets of air alternately which blow the tobacco from the single stream (3) alternately into one or other of the two continuous streams (11a, 11b). USE/ADVANTAGE - Mfr. of cigarettes, cigars etc. Two homogenous streams are produced which avoid the undesired concentration of different components of the tobacco.
Patent DE-4140745-A1 (DE)
Inventor: BREUER WOLFGANG DR
IPC: B01J20/04
Filed: 1991-12-11
Abstract: The invention concerns the processing of aqueous industrial cleaning-bath liquors, without significantly modifying the surfactant or builder system in them, by bringing them into contact with double-layer hydroxides. The contaminants, which consist essentially of natural or synthetic oils and greases, are selectively removed from the bath liquor.
Patent DE-4140988-A1 (DE)
Title: Thermal light source from target - used as gas discharge lamps in optical region of electromagnetic spectrum
Inventor: BOEHLER REINHARD
IPC: G01J3/10
Filed: 1991-12-12
Abstract: Thermal light source (3a) is the space region of a target (3) and in the direct surroundings of the target a super pressure prevails. Energy is introduced into the light source (3a) to heat the source and give a constant temp. T and emit a Planck black body beam dependent on temp. T. The space measurements of the light source (3a) are in the region of 10 microns or a few 10 microns. Pref. the target (3) is located in the pressure chamber of a super pressure-producing appts., pref. a diamond or sapphire high-pressure appts., the pressure chamber enclosing a diamond stamp. (1) and a metallic sealing ring (4). The target is made of a solid material and contains a pure salt or metal-contg. salt or a metal, pref. W or Mb, or graphite. USE/ADVANTAGE - Used as gas discharge lamps, esp. Xe or Hg lamps, in the optical region of the electromagnetic spectrum.
Patent DE-4141613-A1 (DE)
Title: Universal roll stand with swing-out crowns - has motor-driven setting device, connected to pivot unit for crowns with setting spindles defining pivot axis and having positioning devices
Inventor: REISMANN HANS-JUERGEN
IPC: B21B13/10
Filed: 1991-12-17
Abstract: The motor-driven setting device is connected to a pivot unit (19) of the crowns (9,11). The setting spindles (4), which define the pivot axis, also have a pivot unit (19). The pivot units, and the positioning devices associated with the spindles, consist of an externally toothed inner ring (24), meshing with the screw-down nut (8), and an internally toothed outer ring (26), fixed to the top of the spindles (4), in the crown. ADVANTAGE  - Improves swing-out movement of crowns.