baber/WOPTO huggingface dataset:
Patent DE-3903490-A1 (DE)
Title: Circuit arrangement of a digital optical waveguide testing device
Inventor: GRIMM ERHARD PROF DR SC TECHN
IPC: G01M11/00
Filed: 1989-02-06
Abstract: The device is used in conjunction with an optical waveguide fault location device which operates according to the pulse-echo method, and enables a statement about the presence of breaks in optical waveguides. The optical waveguide is to be examined for impermissible defects. Of special interest are faults in the vicinity of plugs, which occur, for example, in production or in the practical use of the optical waveguides. Furthermore, the total number of reflecting joints is determined. If a break is present in a plug, this device is therefore intended to determine in which of the two plugs of the optical waveguide this lies. In so doing, use is made of the effect that strong reflections occur at breaks, because of Fresnel reflection and that the Fresnel reflection can be strongly suppressed at optical waveguide ends by matching to the surrounding medium by means of immersion liquids. The measuring results are shown with indicators. The block diagram is reproduced in Figure 1. <IMAGE>
Patent DE-3905661-A1 (DE)
Title: Automatic monitoring device, in particular for washing machines
Inventor: SCHIELE HEINZ
IPC: D06F39/08
Filed: 1989-02-24
Abstract: The known devices have the disadvantage that the automatic water stop is controlled by the change in the water pressure, as a result of which the monitoring range is greatly restricted. Other control arrangements for wider ranges are often susceptible to breakdown and are complicated and expensive. In contrast, the invention makes use of a control device (8) which is arranged on the floor and whose probe consists of a strongly hygroscopic solid (11) on which a function lever (7) bears, it being possible for the swivel movements of the latter to be transmitted positively via a steel cable (6) to the valve stem (4) of a conventional safety valve (2). It should be stressed that the probe used here consists of a piece (11) of ordinary cube sugar which quickly melts on coming into contact with the spreading aggressive (active) water, with the result that the bearing action of the function lever (7) subject to the compression force of the tensioned valve springs (5) is eliminated, and the closure stroke (S) in the safety valve (2) can effect the water stop. Advantages: extended range of monitoring, very simple technology, retrofitting possible without altering the machine. <IMAGE>
Patent DE-3909828-A1 (DE)
Title: Apparatus for conveying loads
Inventor: SCHEPERS ALOIS DIPL ING
IPC: B66C11/00
Filed: 1989-03-25
Abstract: An apparatus for conveying loads, in particular unit loads, with an overhead travelling crane is provided with at least one bridge girder (2, 3) on which one or more main crabs (8) run on tracks (5, 6) transversely to the displacement direction of the overhead travelling crane (1). The bridge girder or girders (2, 3) are each supported laterally via rollers (4) on rails (5) and are movable via rails. One or more conveying crabs (26) movable on guideways (30, 31) parallel to the displacement direction of the overhead travelling crane are arranged laterally at the overhead travelling crane (1) in such a way that unit loads (19) can be transferred from the main crabs (8) and/or storage crabs (13) arranged on the bridge girders (2, 3) onto the conveying crabs (26) and vice versa. <IMAGE>
Patent DE-3912547-A1 (DE)
Title: Rotating gas filter drum - prevents dusty gas escaping into clean gas space by downwardly directed diverted flow
Inventor: SCHMITZ HUGO
IPC: B01D50/00
Filed: 1989-04-17
Abstract: Inside a rotating housing against which at least the heavier particles of dust in a gas stream are centrifugally applied, in cyclone fashion, to descend to a base collector is a rotating drum whose axial shaft is held between upper and lower bearings.  The lower section of the drum is of porous gas-permeable material for filtering dust from gas flowing radially inwards. This porous section merges into an upper annular solid section  surmounted by an inwardly tilted rim. Cleaned gas rises towards an upper outlet. To prevent dusty gas from the annular space between housing and drum being entrained with cleaned gas, part of the rising stream of filtered gas is branched off as a separate circulation whose downward arm resists the stream of dusty gas, using the pressure imparted by internal baffle plates. ADVANTAGE - Superior to known systems wherein the filter housing is dipped into a pool of sealing liq..
Patent DE-3912968-A1 (DE)
Title: Monitor for dia. of threads and wires - based on light reflected by object and converted to electrical signals
Inventor: JAKOB KLAUS DIPL ING
IPC: G01B11/10
Filed: 1989-04-20
Abstract: Irregularities of the dia. of a moving thread and/or the dia.  of a wire in motion can be determined by a beam of light which forms an acute angle of incidence with the longitudinal direction of the object.  The light intensity in the direction of a light beam reflected by the object is converted in an electrical signal and compared with a reference value.  Pref. a emitter (1) with a power supply (2) directs a light beam (3) on the object (4).  The reflected portion reaches a photodiode or phototransistor (5).  After pre-amplification (6) the output signal reaches a comparator (7) which changes its output to another level, if the input signal drops below a threshold.  If the rate of dropped values counted by a counter (8) is less than a set figure, the counter is reset by a timer (9) and the reading is ignored.  If the rate is higher, an optical or acoustical alarm (10) is sounded. ADVANTAGE - Detects non-uniformities and measures the dia. of a filiform object by simple means.
Patent DE-3916624-A1 (DE)
Inventor: BERNHARDT BRUNO
IPC: B01D39/02
Filed: 1989-05-22
Abstract: In a packed bed filter (10), packing (13) used, which has a liquid- repelling surface, so that the capillary spaces (16) between the packing particles (13) cannot be filled with liquid adhering to the packing. Plastic spheres are an example of suitable packing. <IMAGE>
Patent DE-3925669-A1 (DE)
Title: Generating orthogonal pulses in digital transmission systems - superimposes pulse basic function in specified system, forming first orthogonal pulse
Inventor: WEIDENFELLER HERMANN DIPL ING
IPC: G06F1/025
Filed: 1989-08-03
Abstract: The orthogonal pulses are generated from several pulse base functions, linearly independent, and determined by a time interval defined by zero time period and a transmission step (Ts) time period. The pulse base functions are linearly superimposed such that the first orthogonal pulse is formed by a first pulse base function, weighted by a first factor (kll). The second orthogonal pulse is formed by the sum of first two pulse base functions, each weighted by its own factor (k21,22). The nth orthogonal pulse is formed by the sum of the n pulse base functions, each with respective factor (knl-nn). The latter are determined, using the known Schmidt orthogonalising process. ADVANTAGE - Negligible change of orthogonality under band width limitation.
Patent DE-3925978-A1 (DE)
Title: Adjustable exterior vehicle mirror - has mirror formed with dark, highly reflective night vision surface on its rear side and able to pivot through 180 deg.
Inventor: HENDLMEIER KONRAD
IPC: G02B5/08
Filed: 1989-08-05
Abstract: The exterior vehicle mirror has an adjustable mirror (1) fitted in a housing, fixed to the vehicle. The rear side of the mirror, is fitted with a dark, highly reflective mirror surface (2,3), used esp. at night to reduce the reflected light from following vehicles. The mirror is able to pivot through 180 deg. to switch between nor-mal and night vision mirror surfaces. USE/ADVANTAGE - Exterior mirror for vehicle is provided with both normal and night vision capabilities.
Patent DE-3931831-A1 (DE)
Inventor: ROTHENBUEHLER WALTER
IPC: E04G17/14
Filed: 1989-09-23
Abstract: The abutment piece (1) for laterally supporting concrete forms (12) is integrally joined to a crushable zone in the form of a compressible sleeve (2), which is adjoined by a support (8). The head (13a) of a nail (13) serving to fasten the abutment piece (1) abuts on the support. In the event of any excess energy acting on the nail (13), the sleeve (2) is compressed and damage to the abutment piece (1) is thus avoided. 
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Patent DE-3932510-A1 (DE)
Title: Controlling in pulsed current converter or inverter - using microprocessor with stored pulse mode to calculate required pulse pattern for pulse pattern generator
Inventor: LEISTIKOW JOACHIM DIPL ING
IPC: H02M7/529
Filed: 1989-09-26
Abstract: The control method uses a pulse pattern generator, controlled by a microprocessor (1), for generating different pulse patterns from which the firing and extinction pulses for the current frequency and/or voltage converter thyristors are extracted. The microprocessor memory holds the different clock pulse modes for optimal operation of the load in dependence on the overall frequency, with calculation of the corresp. pulse pattern using given equations by the microprocessor. The pulse pattern calculations are effected by the microprocessor in sequential calculation intervals, into which each full period of the output signal voltage is divided. Pref. the pulse pattern is separately calculated for each phase of the current converter. ADVANTAGE - Applicable to frequency range between 0.1 and 300Hz.
Patent DE-3934882-A1 (DE)
Inventor: SMOLKA HEINZ-GERD DR
IPC: D21C5/02
Filed: 1989-10-19
Abstract: The invention relates to aqueous dispersions containing: A. C6-22 carboxylic and/or resin acids and: B. C6-22 oxoalcohols alkoxylated with 2 or fewer 6 mol C2-4 alkylene oxides, for de-inking waste paper.
Patent DE-3937290-A1 (DE)
Inventor: BERG JOACHIM
IPC: F23N5/12
Filed: 1989-11-09
Abstract: The air and/or fuel supplies to a burner-heated appliance 1 are controlled to maintain an optimum ratio. A flame ionisation probe 14, 15 measures the flame conductivity, and any difference between the measured conductivity and a reference is used to adjust for example a gas valve 12 and/or the speed of a fan 8. <IMAGE>
Patent DE-3938355-A1 (DE)
Title: Halogen light source for facsimile equipment or copier - has equalising reflector with different radii of curvature across width and low-reflectance areas along length
Inventor: WAKIYA HISAO
IPC: H04N1/028
Filed: 1989-11-17
Abstract: The tubular lamp (51) is associated with a reflector (54) having areas of reduced reflectivity (46) at intervals corresp. to the positions of the light-emitting sections along the tube. A part (5a) of the reflector (5A) is curved to a semicircular or parabolic profile leading into a  substantially plane part (5b) which separates it from a lens sharply curved opposite part (5c). A slit (23) is incorporated at or near the junction of the plane and the slightly curved parts (5b,5c). The reflectivity of the poorly reflecting areas (46) is determined in accordance with the deg. of nonuniformity of distribution of brightness. ADVANTAGE - Distribution of light over surface of original document can be made as uniform as possible with source varying in brightness along its length.
Patent DE-4005267-A1 (DE)
Title: Plastics container for flat cosmetic segments - incorporates two U=shaped side walls designed to take inserts
Inventor: FITJER HOLGER
IPC: A45D33/20
Filed: 1990-02-20
Abstract: The plastics container, particularly for cosmetics such as flat powder segments has a base unit and a swivel lid. The base unit (1) has two U-sectoin side walls (7) which open onto each other wherein insert parts (22) can be pushed into the ees' U-recesses. The insert parts have push in webs (27) for several plate like sockets (29) which can be slid in one above the other. The insert parts can each be fixed by a web-like projection (23,24) engaging in a groove in the area of the upper and lower isde of the side walls (7). USE - Plastics container is esp. used as a travelling case for cosmetics.
Patent DE-4006079-A1 (DE)
Title: Pasting and hanging wallpaper in one operating process - using paste-filled and application rollers between which wallpaper is fed
Inventor: MARKERT REINHARD
IPC: B44C7/06
Filed: 1990-02-27
Abstract: The method feeds the wallpaper between two rollers (2,3) one of which is filled with wallpaper paste. The paste filled roller (3) applies the paste to the wallpaper and the other roller presses the pasted paper against the surface on which it is to be hung. USE/ADVANTAGE - For simultaneous pasting and hanging of all conventional types of wallpaper in single operating process without causing folds.
Patent DE-4010383-A1 (DE)
Title: Conveyor device for rhythmic transport of workpieces - has lift devices with support plates for conveyor beams
Inventor: MOELLER REINFRIED DIPL ING
IPC: B23Q7/14
Filed: 1990-03-31
Abstract: The conveyor device is for a rhythmic conveyance of workpieces between successive processing stations in production lines. It includes lift devices (18) which each have a support plate (16) which support the beams (14). The support plates project from a slide carriage (36) guided vertically in a frame (32) and provided in turn on the side remote from the support plates with an entrainment bolt (38) which engages in a control groove (42) which is set in the circumferential surface of a perpendicularly mounted rotary driven cylinder roller (40). The cylinder rollers can be coupled at their lower end to the output of an angular gearing (44) wherein the drives of the angular gearing are each coupled to the drive of the angular gearing of the preceding and succeeding lift device (18). One common drive motor (48) can be associated with all the lift devices.
Patent DE-4014396-A1 (DE)
Title: Passive optical communications system for telecommunications network
Inventor: REIMANN UDO DIPL ING
IPC: H04J3/06
Filed: 1990-05-04
Abstract: Passive optical communications system for telecommunications network has central fine delay device which adds to decentralised coarse delay
Patent DE-4016467-A1 (DE)
Title: Protection for flexible plastics underground ventilation shaft - has ventilators at intervals, each adjacent to tubular insert with perforated cover and internal hose
Inventor: BLOCK GUENTER DIPL ING
IPC: E21F1/08
Filed: 1990-05-22
Abstract: Protection for a flexible plastic underground ventilation shaft (1) includes ventilators (3,4,5) at intervals along the shaft. The ventilators (3,4,5) are each adjacent to a tubular insert (9) with holes (11) in the cover (10) and a flexible hose (16) inside. With excess pressure in the shaft (1) the hose (16) closes the holes (11) and with low pressure the hose (16) lifts from the inside of the cover (10) and opens the holes (11). USE/ADVANTAGE - Prevents collapse of the shaft when there is low pressure.
Patent DE-4019829-A1 (DE)
Title: AC solid-state power controller - includes opto-coupler to turn off gate voltage and solid-state switch under overvoltage or overload conditions
Inventor: IONESCU ADRIAN F
IPC: H02H3/08
Filed: 1990-06-21
Abstract: The controller includes a rectifier with its output connected to a solid state switch, sich as a MOSFET or a bi-polar transistor, that is respectively gate or base controlled for controlling to an A.C. source, with the D.C. output of the rectifier bridge being connected across the solid state switch. The switch gate is synchronised to the A.C. source and controlled by an overload and short circuit protection circuit, which senses the overload and short circuit conditions and in turn signals an opto coupler to turn off the gate voltage and the solid state switch, and consequently, turn off the load current. The overload and short circuit protection circuit includes comparator and timing unit for sensing overload and short circuit conditions and in turn operating a driver clamp transistor for turning off the solid state switch and, thus, the load current. The controller provides a turn off time in the range of a few microseconds and may be made to reset as soon as the fault is cleared. This very fast turn off time, together with the rectifier and solid state gated switch configuration, provides a power controller which is resistant to short circuit inherent in conventional A.C. solid state circuit breakers.
Patent DE-4020134-A1 (DE)
Inventor: BERGER RUDOLF
IPC: F04C18/30
Filed: 1990-06-25
Abstract: In the housing of a spherical piston pump 10, shown in longitudinal section in Figure 3, a sleeve 16 with a working chamber 15 is rotatably mounted about the longitudinal axis 30 of the housing. In this working chamber 15 a swash plate 21 is supported which rests by way of a bearing journal 26 on a pivotally mounted bearing section 19. This swash plate 21 is driven by a drive shaft 25 and a partition wall 22 arranged on this, on both sides of which chambers 53 and 54 are located which interact with chambers 55 and 56 located on the other side of the swash plate 21 and are connected via ducts 51 and 52 to inlet or outlet apertures 49 and 50 located in the housing 9. Due to rotation of the sleeve 16 and the bearing section 19 the angle between the housing longitudinal axis 30 and the longitudinal axis 32 of the bearing journal 26 can be varied in such a way that the volumes of the chambers 53 to 56 and hence the quantity delivered by the spherical piston pump 10 also vary. <IMAGE>
Patent DE-4020325-A1 (DE)
Title: Swashplate hydraulic pump assembly - has control system which reduces pump flow as delivery pressure increases
Inventor: BREINING ULRICH
IPC: F04B49/08
Filed: 1990-06-26
Abstract: A hydraulic pump has a drum (21) which is mounted on the driving shaft (20).  The drum (21) has a number of cylindrical bores parallel to the shaft axis.  Each bore receives a cylinder (23) which has a spherical head which fits in a shoe (24) which slides on the plate (25) which is attached to the swashplate (27). The flow through the pump is varied by tilting the swashplate (27) about an axis at right angles to the shaft axis.  The swashplate (27) is tilted by an arm (16) which is actuated by a piston in a housing (14) in the control unit.  This piston is subjected on one side to the force of a spring which tilts the swashplate in the direction of increased flow.  The pump delivery pressure acts on the piston in the opposite direction so that the flow from the pump decreases with increasing pressure. USE - Hydraulic pumps.
Patent DE-4021336-A1 (DE)
Title: Aq. compsns. contg. anionic wetting agent and foam inhibitor
Inventor: ALBRECHT KONRAD DR
IPC: C09K23/20
Filed: 1990-07-04
Abstract: Aq. compsns. contain a wetting agent (I) and a foam inhibitor (II), where (I) is an anionic surfactant of sulphate or sulphonate type and (II) is a surfactant selected from 6-18C perfluoroalkyl phosphinic- or 6-18C perfluoroalkyl phosphonic-acids and their salts.
Patent DE-4022511-A1 (DE)
Inventor: MAGER GERHARD
IPC: G10L15/22
Filed: 1990-07-14
Abstract: In the course of time, the operation of modern devices for entertainment electronics has become more and more difficult for the user, especially since many new device functions have been added compared with previous devices. Voice-controlled devices for entertainment electronics are also known, in which individual device functions can be controlled by acoustic input of command words, by means of a microprocessor and a voice analyser connected to it. To increase further the operational reliability and avoid device control errors if possible, a first microprocessor is arranged in the new device, which microprocessor carries out a logic operation on acoustically entered command words and function commands entered via a key or alphanumeric keyboard during a learning process. In the subsequent operating phase, the voice command is analysed and, when a voice command is recognised, the first microprocessor supplies the associated function command to a second microprocessor which controls the various device functions. A wide field of applications is given for the new voice-controlled device, in which context task-specific matching of the two microprocessors can be effected by applying the principle of distributed control. <IMAGE>
Patent DE-4024311-A1 (DE)
Title: Imaging laser printer, digital copier or facsimile - shows data relating to working voltage and remaining working life when fixing unit is attached
Inventor: GOKITA MASAMI
IPC: G03G21/00
Filed: 1990-07-31
Abstract: The fixing unit (33), operable in a predetermined drive voltage range, in removably mountable on a part or the housing of the imaging appts.. A unit delivers an output voltage to the fixing unit. Another unit detects or describes the operating voltage of the fixing unit fitted. A control circuit (133) ascertains of the delivered output voltage lies within the designated voltage range. A further unit allows the delivered output voltage to pass to the fixing unit if it does lie within the drive voltage range.  A display shows the result, i.e. if the output voltage is within or outside the drive range.  The fixing unit has a working life monitoring and fuse unit (174,175,176).  The condition of the latter is indicated when the mains switch is switched on. ADVANTAGE - Avoids interference or failure if range of working voltage in relation to input a.c. voltage is falsely set.
Patent DE-4024666-A1 (DE)
Title: VErtically sliding sectional door - has cable attached to each side of door with free ends of cables joining together
Inventor: NIEMETZ HERMANN
IPC: E05F15/00
Filed: 1990-08-03
Abstract: The vertically sliding door is constructed from horizontal elements whihc are connected to each other along their upper and lower edges. Each end of the lowest element is fitted with a guide roller (16) which runs in a vertical guide rail (18) which is fixed to the building (20). The door is raised by means of cables (36) which pass around guide pulleys attached to the lowest element 812) and are wound on to drums (42). The free ends of the cables are attached to opposite ends of a flexible member, such as a cable (80) which runs along the side of the lowest element. USE - The two side edges of the door are raised or lowered at the same speed.
Patent DE-4027493-A1 (DE)
Title: Diesel IC engine fuel injection valve - with valve needle operated via pressure slot sliding relative to cooperating hydraulic piston
Inventor: BUERGLER LUDWIG DIPL ING
IPC: F02M45/08
Filed: 1990-08-30
Abstract: The fuel injection valve has a sliding valve needle (4) continuously acted on by a first closure spring (8b) and acted on by a second closure spring only when it has moved away from the closure position by a given distance. The valve needle (4) is operated via a pressure bolt (5) directly acted on by the first closure spring (8b) and sliding relative to an hydraulic piston (7), acted on by the second closure spring (8a). An intermediate ring (10) which can slide along the pressure bolt (5) acts against the hydraulic piston (7). It has a shoulder (19) facing a corresponding shoulder of the valve needle (4) used to define a distance (d1) corresponding to the valve needle preliminary stroke. ADVANTAGE Maintains min. mechanical tolerances.
Patent DE-4029169-A1 (DE)
Inventor: MICHEL HARTMUT DIPL ING
IPC: H03K17/615
Filed: 1990-09-14
Abstract: The proposal is for a Darlington circuit (10-12) in which a resistor is fitted in parallel to the base-emitter path of the output transistor (12) of said circuit (10-12) to detect a conductor breakage in its load circuit. In addition there are switching means (17) controllable by the dropping voltage at the resistor (16) which, when said voltage falls to below a predetermined value, can shift to a second switching position indicating a conductor breakage. Thus it is possible with certainty to detect a conductor breakage without a measuring resistor in the load circuit and with only a few simple and cheap components.
Patent DE-4029723-A1 (DE)
Inventor: EMMRICH PETER
IPC: B21D5/01
Filed: 1990-09-20
Abstract: Gutters are produced by bending sheet-metal strips. In order to be able to make the gutters with little technical outlay, in a simple manner and with a high surface finish and dimensional accuracy, the bead and water seam are first of all bent into the sheet-metal strips and their central part is then shaped to form a channel. <IMAGE>