baber/WOPTO huggingface dataset:
Patent DE-3743773-A1 (DE)
Title: Three-dimensionally arranged IMPATT diodes
Inventor: BEHR WOLFGANG
IPC: H01L25/07
Filed: 1987-12-23
Abstract: The invention relates to the monolithic integration of IMPATT diodes which are arranged three-dimensionally. A series of semiconductur layers is structured in such a way, that IMPATT diodes may be produced arranged one above another. The IMPATT diodes may be controlled via contact layers, which are grown epitaxially between the respective component layers of successive IMPATT diodes. The IMPATT diodes may be connected in series and in parallel.
Patent DE-3744272-A1 (DE)
Title: Container for storing photographic films
Inventor: NOUWEN BART
IPC: G03C3/00
Filed: 1987-12-24
Abstract: A container for storing photographic films, film cartridges, film spools and the like is described. The container has a hollow cylindrical container body and a container lid which closes said body and is designed as a screw cap and/or press-fit cap. At opposite points on its circumferential surface, the container body has catch sections with which further catch sections of matching design can be engaged in such a way that a plurality of containers can be fitted together to form a unit. The catch sections are designed to be complementary to one another in the form of a projecting dovetail-shaped section and a set-back dovetail-shaped section. Provided at the bottom of the container is a dovetail-shaped depression into which a coupling element can be inserted, by means of which two containers can be coupled in the axial direction of the containers. <IMAGE>
Patent DE-3808336-A1 (DE)
Title: Method and device for the determination of the fineness of textile fibres, especially flax fibres
Inventor: OELKRUG DIETER PROF DR
IPC: G01N33/36
Filed: 1988-03-12
Abstract: To determine the fineness of textile fibres, especially flax fibres, a fibre sample is irradiated with linearly polarised light. The reflected light is analysed with reference to its polarisation parallel and perpendicular to the plane of oscillation of the light irradiated. From the measured intensities (III and I) of the reflected light polarised in parallel or perpendicularly, the relationship <IMAGE>  is formed as index for the fibre unit. A device for carrying out this measurement comprises a light source for linearly polarised light and a detector with an adjustable analyser.
Patent DE-3817906-A1 (DE)
Inventor: BERGMANN THOMAS DIPL CHEM DR R
IPC: F26B5/06
Filed: 1988-05-26
Abstract: For the freeze-drying of, in particular, biological or pharmaceutical material under sterile conditions, the material to be dried is placed in a container whose sides are at least partly composed of a hydrophobic, porous, germproof membrane which is permeable to water vapour, the container is closed pressure-tight and then the material is freeze-dried in the closed container under usual conditions.
Patent DE-3818174-A1 (DE)
Title: Pruning cutter
Inventor: HAAS ALFRED
IPC: A01G3/08
Filed: 1988-05-28
Abstract: By expedient quality pruning, the quality and the value of the stem wood are improved. Pruning is carried out by hand saw, cutting head, electrically or pneumatically driven circular saw or blade saw and climbing saw. Fatigue and concentration take their toll on the worker, the performance is limited and the cut leaves stumps behind. The novel unit is intended to be simple and to ensure high performance and cutting quality. We obtain a rapid, smooth and accurate cut by means of the pruning cutter which comprises a carrying rod, a drive motor and a cutter. Easy movement along the stem and cutting restriction are ensured by the design of the cutter: cutter flanked by ball-bearings, cutter with expediently rounded-off shoulders, cutter with a slide carriage fastened on the carrying rod, or a combination of these embodiments. The drive motor is a compressed-air turbine, an electric motor or a combustion engine, with optimum torque, high-speed and low weight. Application areas: quality pruning in the forestry sector, in parks, orchards, tree nurseries, harvesting of fruits, producing ornamental branches, delimbing and debarking.
Patent DE-3819285-A1 (DE)
Title: Electrical control device for paper shredders
Inventor: HAIGIS HERBERT
IPC: B02C18/24
Filed: 1988-06-07
Abstract: Connected on the input side of a central signal processing section (10) in the electrical control device for a paper shredder are both an automatic turn-on device for the drive motor of the cutting mechanism of the paper shredder and an automatic turn-off device for this motor, both of which are provided with sensors (17, 34) which act in a non-contacting manner and whose signals are each fed via a switching delay stage (19, 36). <IMAGE>
Patent DE-3820105-A1 (DE)
Inventor: KELLEY WINFIELD LEROY
IPC: F24F11/75
Filed: 1988-06-13
Abstract: An air volume regulator valve for an air distribution apparatus for heating, ventilating and air conditioning systems comprises fixed corrugated sidewall 176 and a slidable corrugated sidewall 174 which is movable from a first open position, through a closed position to a second open position. Each sidewall has openings which align when the valve is in the open positions. The valve has a "dead band" feature provided by the closed position to allow the valve to better assist in controlling temperature of a room or plenum chamber to be heated or cooled. Means 89 is provided for moving the corrugated slidable sidewall in dependence upon temperature change. The slidable sidewall is slidably fixed to the fixed sidewall by headed pins (84) and (86) (Fig 6). <IMAGE>
Patent DE-3821585-A1 (DE)
Inventor: DOESSEL KARL-FRIEDRICH DR
IPC: C07C43/225
Filed: 1988-06-25
Abstract: Positive-working radiation-sensitive composition which contains a compound which forms an acid when exposed to high-energy radiation, and a compound which is acid-cleavable, and which is characterised in that the compound which forms an acid contains aromatically bound chlorine or bromine and has a pKa of less than 12 or is a derivative of a compound having such a pKa. The claimed composition, in particularly the copying material produced therefrom, has a higher sensitivity and an improved resolution and exhibits, in addition, no image haze after development.
Patent DE-3828645-A1 (DE)
Title: Gripping apparatus
Inventor: GEYER JOHANN WOLFGANG
IPC: B25J15/02
Filed: 1988-08-24
Abstract: In a gripping apparatus having two gripping fingers which clamp an article between themselves, the said article is pressed against a stop in the course of the gripping movement. According to the invention, the stop is immovably arranged on the gripping apparatus, while the gripping fingers pull the article in the direction of the stop towards the end of the gripping movement. Such a gripping movement progression can be achieved with simple means if the gripping fingers are actuated by means of a transmission lever mounted in a rocker-like manner.
Patent DE-3829745-A1 (DE)
Title: Method and apparatus for securing a band-like structure to the circumference of a drum
Inventor: OKUYAMA KOJI
IPC: B29D30/30
Filed: 1988-09-01
Abstract: To secure a band (28) transported by a conveyor (29) to the circumference of a drum (1), head and tailpieces of the band (28) are grasped, the band (28) is transported by the conveyor (29) until the headpiece arrives at a desired head position, and the band (28) is then transported further and the drum (1) rotated. At the same time as the headpiece secured to the drum (1) arrives at a desired angular position, the tailpiece arrives at a desired tail position. This is located at a predetermined distance from a tail-measuring position, in which the tailpiece was grasped in the first working step, with the result that the head and tailpieces are connected to one another. The band (28) is thereby secured uniformly to the drum (1), so that overlengths and underlengths of the band (28) in relation to the circumferential length of the drum (1) are compensated. <IMAGE>
Patent DE-3834143-A1 (DE)
Inventor: THANHEISER WILHELM
IPC: H03G1/04
Filed: 1988-10-07
Abstract: In the adjustment, particularly the step-by-step adjustment of the volume of audio signals, audible and thus interfering clicking noises are produced due to the abrupt change in the signal variation when C-MOS switches are used. This interference is suppressed by the fact that, by the beginning of each step-by-step level change, a signal jump of the same magnitude is generated in the opposite direction which initially compensates for the signal jump. After a predeterminable time constant has elapsed, this compensation is cancelled again in a continuously decreasing manner until a new level jump arrives. Control of the volume of audio signals. <IMAGE>
Patent DE-3835691-A1 (DE)
Title: Stand for a low-voltage floor standard luminaire
Inventor: KOENIG-FREIBURG JUN JOSEF
IPC: F21V23/02
Filed: 1988-10-20
Abstract: A moulding (10) of sheet-metal or plastic serves to accommodate the filling mass, by means of which moulding a bottom (12) and a cylindrical side wall (11) is formed. Inside the luminaire stand a stable pot (20) is sealed which forms a space which is designed for accommodating commercially available transformers. The luminaire tube can be plugged into the opening (22) of the pot and fastened. A detachable lid (16) seals the transformer space. <IMAGE>
Patent DE-3837246-A1 (DE)
Title: Frequency generator
Inventor: LUEBKE ELIGIUS DIPL ING
IPC: H03L7/23
Filed: 1988-10-28
Abstract: To generate finely adjustable frequencies within a wide frequency range, frequency generators are known which contain a number of phase-locked loops, the output signals of which are mixed in mixing stages. During these mixing operations, noise signals are produced, the suppression of which requires high circuit complexity. A first phase-locked loop (PLL1) is provided which enables the output frequency (FA) to be adjusted in coarse steps. The first phase-locked loop (PLL1) is preceded by two further phase-locked loops (PLL2, PLL3) by means of which the frequency steps of the first phase-locked loop (PLL1) can be interpolated. The requirements for the phase-locked loop (PLL3) with respect to spectral purity are not high. Frequency generator in digital measuring instruments. <IMAGE>
Patent DE-3840825-A1 (DE)
Title: Contact arrangement for vacuum switches
Inventor: PILSINGER GUENTER
IPC: H01H33/664
Filed: 1988-12-03
Abstract: A contact arrangement for vacuum switching chambers has pot-shaped contacts whose hollow-cylindrical contact supports have slots inclined with respect to the axis and are closed on the head side by a contact disc. Located between the pot base (13) and the contact disc (9, 10) is a supporting body (12) which, according to the invention, is arranged alone in the pot interior and is formed at least partially, to be precise over its entire cross-section, from a ceramic composite material. <IMAGE>
Patent DE-3842526-A1 (DE)
Inventor: KNOBLAUCH KARL PROF DR
IPC: B01J37/22
Filed: 1988-12-17
Abstract: A process is disclosed for treating carbonaceous catalyst with a gaseous halogen or a gaseous halogen compound to increase the catalytic activity and prolong the useful life of the catalyst. The treatment of the catalyst is conducted at temperatures above about 150 degrees C., preferably with the use of an inert gas, which inert gas is flowed through the carbonaceous material, and which inert gas carries the gaseous halogen or the gaseous halogen compound to the carbonaceous material.
Patent DE-3901769-A1 (DE)
IPC: B29C44/12
Filed: 1989-01-21
Abstract: For the production of expanded components, a strip (11) of a continuous tangle of filaments, which holds the reinforcing mats (43, 47) in place and at a distance, is placed in an injection mould (32). The reinforcing mats are thereby positioned in the outer skin region of the finished product, without being swept by the foaming components introduced through the injection jet (38) into some outlying region of the mould. As a result, components which are very lightweight and are capable of withstanding high loads are obtained, which can be used everywhere where low weight and high rigidity, as well as cheap production matter. <IMAGE>
Patent DE-3907835-A1 (DE)
Title: Tool-monitoring device
Inventor: SCHWALBE HANS-JOACHIM PROF DR
IPC: G05B19/4065
Filed: 1989-03-10
Abstract: In a lathe, a wedge (7) is mounted on the circumferential surface of the housing (1) of the drum tool holder. The wedge (7) slopes at a shallow angle towards the spur tooth system (3) of the drum tool holder but has a steep flank (9) on the side remote from the spur tooth system (3). An acoustic pick-up (10) is arranged on the flank (9). The acoustic pick-up (10) picks up the longitudinal vibration portion of the vibration produced by the respective tool (5, 6) and feeds a corresponding voltage signal to an analysing unit. <IMAGE>
Patent DE-3909199-A1 (DE)
Title: Tapping point for beverages which are fed to a receptacle in a jet-like manner
Inventor: GUETTLER FRANZ
IPC: B67D1/16
Filed: 1989-03-21
Abstract: The invention relates to a tapping point for beverages which are fed to a glass or the like in a jet-like manner, in particular a tap for beer glasses for use on a bar counter, having an associated disc which can be rotated by a drive and is intended as a standing surface for the glasses which can be guided on the disc and up to the tapping point or the tap, said glasses, if appropriate, standing in insert hollows of the discs and the latter being assigned a weighing element which, via the drive, controls the time taken for the filling procedure. Said tapping point is improved in that the drive is a stepping motor (20) for timed rotation of the disc (14) through an arc dimension (b) corresponding to the distance between adjacent glasses (16), the weighing element (38) being connected to a switch of the drive (20), by means of which, upon reaching the registered weight of the glass contents and a predetermined desired value, the switch can be activated. <IMAGE>
Patent DE-3910054-A1 (DE)
Title: Ion-implantation installation
Inventor: KRIMMEL EBERHARD F PROF DR
IPC: H01J37/317
Filed: 1989-03-28
Abstract: Ion implantation of a target (5) with defocused ion beam (71), which covers the whole target cross-section with constant intensity distribution (Fig. 2). The implantation can be carried out, without the target (5) overheating, over the implantation period without being temporarily interrupted. <IMAGE>
Patent DE-3912991-A1 (DE)
Title: Electric hand drill or screwdriver - has stop switch for automatic cut=out motor at required penetration depth
Inventor: ZAPF JUERGEN
IPC: B25B23/00
Filed: 1989-04-20
Abstract: The drill or screwdriver has a housing (1) enclosing an electric drive motor (2) controlled by a manual switch (7) and rotating the projecting tool spindle about its longitudinal axis. The motor (2) is disconnected automatically when the required screw or drill depth is reached via a stop switch. A stop head (22) adjacent the tool (5) is used for displacement parallel to the longitudinal axis (L) upon impact with the workpiece, to operate the cut-out switch contacts. Pref. the switch stroke (S) of the stop head (22) and the contact stroke (K) of the switch contacts are the same. USE - For preventing damage to screw head by overtightening.
Patent DE-3917999-A1 (DE)
IPC: A47G19/22
Filed: 1989-06-02
Abstract: The invention relates to a drinking glass (2) or the like having an upper part (4), which preferably consists of glass and is constructed, for example, as a chalice, and a preferably metal foot (8). In order to provide a drinking glass (2), in which the upper part (4) and the foot (8) are detachable, but are reliably joined to one another, provision is made for the upper part (4) to have a pin (6) and for the foot (8) to have a collet chuck (10) for the detachable attachment of the upper part (4) to the foot (8). <IMAGE>
Patent DE-3922501-A1 (DE)
Inventor: FREITAG GERHARD DR
IPC: C08L81/02
Filed: 1989-07-08
Abstract: There is described a fibre, in particular a monofilament for paper machine wire-cloths, that comprises polyphenylene sulphide and has been drawn. The polyphenylene sulphide is a mixture of 60-90 per cent by weight of a high molecular weight polyphenylene sulphide having a melt flow index of not more than 100 and 10-40 per cent by weight of a low molecular weight polyphenylene sulphide having a melt flow index of at least 120. This fibre has approximately the longitudinal strength of a fibre that consists exclusively of the higher molecular weight polyphenylene sulphide, while the relative knot strength is appreciably higher than that of the higher molecular weight polyphenylene sulphide.
Patent DE-3924964-A1 (DE)
Title: Ink drop flight speed adjustment in ink jet printer - with piezo-elements causing pressure variations in ink channel using laser-trimmed resistor in parallel with each piezo-element
Inventor: SCHIERJOTT RUDOLF
IPC: B41J2/045
Filed: 1989-07-27
Abstract: A method of setting the ink droplet flight speed of an ink jet printer involves the use of an additional ohmic resistor (RT) in parallel with each piezoelement (CP) for additional adjustment.  The piezoelements are controlled via first, polarisation voltage determining fixed resistors (RF) by a microprocessor control unit (SE) to produce over- and underpressure in an ink channel. For fine adjustment of the polarisation voltage (UP), and hence the droplet flight speed, the second resistor (RT) is a laser trimmed resistor or electronic circuit. USE/ADVANTAGE - For extremely accurate adjustment of the ink droplet flight speed in an ink jet printer.
Patent DE-3927478-A1 (DE)
Title: Field varying tube and its manufacture - has interlaced projections with form groove for electron beam to pass along
Inventor: SCHNEIDER KARL ING GRAD
IPC: H01J23/16
Filed: 1989-08-19
Abstract: A field varying tube has an interdigit delay conductor comprising two identical metal bars (1) of T-shaped cross section having bridge means comprising a plurality of extensions (4) projecting upwardly at intervals along the length of the bar. The extensions (4) have an electron beam channel. Both bars are held relative to each other such that the extensions (4) of one bar fit into the spaces between the extensions of the other bar and the beam channels of all extensions are aligned and held in position by sepg. elements. The bars fit in the hollow tube of the tube. The peripheries of the beam channels enclose beam passing openings (32) which comprise a groove (2) with a bridge part (33) placed across the open side. ADVANTAGE - Provides very precise construction with improved high frequency operation.
Patent DE-3932336-A1 (DE)
Title: Structured effect material - is wetted and creased and bonded to carrier when dry
Inventor: KUDSZUS ULRIKE
IPC: B32B3/28
Filed: 1989-09-28
Abstract: To produce structured materials, e.g. for women's garments or curtainings and wall coverings, which can be of fabrics and paper, the material to be structured is wettened and then creased into the required structure and dried while creased. The structured material is laid on a smooth carrier to be stabilised, and durably bonded by adhesive. The materials are pref. woven textiles and woven silks, and paper, which are dyed and can have blended colour dispersions. The carrier is a woven textile fabric, paper or a plastics film. A hot or cold adhesive bonds the structured material to the carrier, applied to the carier. ADVANTAGE - Gives a wide range of effects which can be created, partic. in detailed effects.
Patent DE-4001023-A1 (DE)
Title: Electro-optical LC system
Inventor: FINKENZELLER ULRICH DR
IPC: C09K19/42
Filed: 1990-01-16
Abstract: (+1.11.89(2), 9.12.89, 10.1.90(2), 12.1.90, 16.1.90, 19.1.90(3), 22.1.90, 23.1.90, 25.1.90-DE-936307/8, 940788, 000470/1, 000723, 001023, 001539, 001540/1, 001683, 001843, 002146) Electro-optical LC system comprises a dielectrically positive LC mixt. (LCM) and another optically transparent medium (M2) between 2 electrodes which may be mounted on substrate plates; the LC mols. have an irregular orientation in the "off" state one of the refractive indices of LCM matches that of the matrix (nM) and/or the ratio of the masses (LCM):(M2) is 1.5 or above, and the system shows reduced transmission in one of the switching states w.r.t. the other state, irrespective of the polarisation of the incident light; the novelty is that LCM contains cpd(s).  of formula (I). In (I), Q1 = A1-Z1-(Z2-Z2)m- (with A1, A2 = trans-1,4-cyclohexylene (Cyc), 1,4-phenylene (Phe), 2-fluoro-Phe or 3-fluoro-Phe; one of the gps. A1 and (if present) A2 can also = pyridine-, pyrimidine-, 1,3-dioxan- or tetrahydropyran-2,5-diyl, or naphthalene-2,6-diyl; Z1, Z2 = single bond, CH2CH2, COO, OCO, -CC-, and/or CH2O; m = 0, 1 or 2); Y, X = H or F; one gp. X or Y can also = Cl; W = CN, Cl, F, CF3, OCF3, OCHF2, NCS or R2 (with R2 = as for R1 below); R1 = 1-12C alkyl, opt. with 1 or 2 non-adjacent CH2 gps. replaced by O or CH=CH.
Patent DE-4002106-A1 (DE)
Inventor: WUERTH HANS
IPC: H02K13/04
Filed: 1990-01-25
Abstract: A commutator (1) for electric motors comprises a plurality of segments (2) which are welded to the ends (4, 5) of the end turns of a round wire rotor winding of the machine. At least two end turns in each segment are arranged one above the other in the radial direction. To obtain reliable contact with a simple structure, the end turns (4, 5) associated with each segment (2) are exposed and connected at flat, embossed surfaces/machining surfaces (6, 7, 8, 9) in the shape of circular segments which are formed by displacing or removing material.
Patent DE-4010279-A1 (DE)
Inventor: KOTTWITZ BEATRIX DR
IPC: B03D1/01
Filed: 1990-03-30
Abstract: Dicarboxylic acid-N-alkyl monoamides, possibly mixed with other anionic or non-ionic tensides, are suitable as collectors for the flotation of non-sulphidic ores, especially apatite.
Patent DE-4013879-A1 (DE)
Title: Passive infrared movement indicator - has circuit for producing high quality light flashes and improves optical signal emitted by alarm so it can be seen over greater distances
Inventor: NEUMANN ADALBERT DIPL ING
IPC: G08B5/38
Filed: 1990-04-30
Abstract: The installation alarm with a circuit for producing high quality light flashes comprises an optical signal generator comprising an illuminated gas discharge lamp (XE) and a circuit comprising a resistor (R1), a diode (D), two smoothing capacitors (C1,C2) a discharge resistor (R2), a load potentiometer (VR1), a load capacitor (C3), an ignition transformer (TR), a thyristor (TH), a zener diode (ZD) and a trigger diode (DIAC), connected to an AC mains power supply to produce intermittent high quality light flashes. USE/ADVANTAGE - Improves quality of signal produced by alarm systems. Simple and inexpensive and can be fitted to commonly available alarm.
Patent DE-4018940-A1 (DE)
Title: Continuous roving deposition - has laser beams directed at spread material as sliver for penetration by reactive gas
Inventor: HOPFE VOLKMAR DR SC NAT
IPC: C23C16/48
Filed: 1990-06-13
Abstract: To coat continuous roving material by laser chemical vapour deposition, to protect the fibres against any reaction when embedded in a metal matrix, the roving is continuously spread out into a sliver as it is drawn through a horizontal or vertical reactor unit to give an even spread, at a constant and/or variable speed. One or more laser beams are directed at one or both sides of the sliver (4) at right angles and/or at an angle to it. While the sliver (4) is subjected to laser means, the gas stream contg. the reactive material is delivered by slit jets to penetrate the sliver (4) at right angles or along it. The sliver material (4) is inserted into and withdrawn from the reactor centifugally by an inert gas stream which passes through jet slits. The flow rate of the inert gas stream and the ratio of the partial gas streams through the gas feed points are structured so that the outflowing gas supports a consistent sepn.  of the sliver (4) and, at the same time, allows only a min. partial flow into the reaction shaft. The laser beam is coupled by a window (6) which is protected by inert gas from deposits of solid reaction products from the reaction zone. ADVANTAGE - The process gives a safe and continuous coating action on the material, which can be automated.