baber/WOPTO huggingface dataset:
Patent DE-2949613-A1 (DE)
Title: Radial jaws for lathe chuck - has support on chuck longitudinal axis provided by toothed engagement via coupling component
Inventor: SCHAAF HERBERT
IPC: B23B31/177
Filed: 1979-12-10
Abstract: The lathe chuck has radially displaceable basic and clamping jaws. These are connected to a driven jaw via an axially displaceable coupling component which engages their teeth. The jaws (5) are supported in the lengthways direction (4) of the chuck directly on the drive jaw (4). The basic and clamp jaws have a radial guide groove (11), which serves for radial adjustment and retention when a coupling piece (2) is disengaged.
Patent DE-2950071-A1 (DE)
Title: Mounting for typewriter disc - has retracted setting to allow type changing with special tool
Inventor: JENDRICKE HERMANN
IPC: B41J1/24
Filed: 1979-12-13
Abstract: The mounting for a writing disc in a typewriter is arranged with the whole assembly on a pivot (67) to swing back from the print position and allow a fitting tool to be inserted. This lifts the disc off the mounting shaft and enables it to be exchanged for one with different characters. The fittings allow rapid exchange of the discs with little manual dexterity required. As the assembly is swung back, a release lever unlocks the disc mounting and immobilises the print levers. The disc can be replaced without having to remove the ink ribbon.
Patent DE-2952761-A1 (DE)
Title: Desulphurising of molten metals, esp. crude iron or steel - using mixed crystals of calcium carbide and calcium oxide which is partly hydrated
Inventor: BRAUN ALBERT
IPC: C21C7/076
Filed: 1979-12-29
Abstract: Agent is made by a melting process, which produces mixed crystals (I) contg. CaC2 and CaO; and part of the CaO is hydrated to form Ca(OH)2. Crystals (I) pref. contain by wt. 40-80% CaO, esp. either 45-80%, or 40-65% CaO; and the CaO is pref. hydrated so that crystals (I) contain 1-6%, esp. 2.5-3.5% combined water. Crystals (I) are pref. made by the usual process employed to mfr. CaC2, and are then pre-crushed and the fines below 4 mm in size discarded. The remainder is milled in the presence of air or N2 contg. 5-20 g/cu.m moisture to a size below 10 mm. The agent can be mfd. economically, and has a high yield when removing sulphur from crude iron or steel.
Patent DE-3002075-A1 (DE)
Title: Fitting casing of telephone subscriber's appts. to base - by projecting lugs which engage with corresp. pockets in base
Inventor: SUSSNER GERHARD
IPC: H04M1/02
Filed: 1980-01-21
Abstract: The main, or upper, casing (2) of the telephone subscriber appts. has four lugs (7) projecting vertically downwards. These are part of the casing moulding which is of a material allowing some elastic deformation. Each lug has an opening (8) in its vertical faces. The base (1) is moulded with slots or pockets (3) corresp. to the lug positions. One side of the pocket has a hooked projection (4) which engages with the opening in the lug. To assemble the casing over the instrument and base it is lowered vertically downwards. Pressure is applied such that the lugs bend sideways over the projections and then snap into position locking the casing and base together. Assembly is simple and quick requiring no tools or fixing screws. As the casing does not hinge on the base the placing of components is not constrained by the arc through which the casing would have to move.
Patent DE-3002441-A1 (DE)
Title: Installation switch with semi-cylindrical lock - has elastic insulator as fastener for lock, gripping over inner face and having engagement lugs
Inventor: BRACHT WERNER
IPC: H01H27/00
Filed: 1980-01-24
Abstract: The locking nut of the installation switch semi-cylindrical lock operates a switching element via a coupling member. It is secured in a transverse bore of the semi-cylinder on the inside of its cover, the semi-cylindrical lock being inserted inside an outer recess and secured there. The securing member is a flexible insulator (8), reaching beyond the inner front face of the semi-cylindrical lock (5). The insulator has locking lugs (10), formed on forked extensions (9), the lugs engaging the transverse bore (13) of the semi-cylinder. The extensions abut the underside of the cover (4). Preferably, the insulator rests, together with its extensions, in groove-shaped recesses of the cover. The transverse bore of the semi-cylinder lies deeper that the plane (12) of the cover underside. The insulator may cover the inner front face of the lock, including its edge regions up to the plane of the locking lug (5).
Patent DE-3007598-A1 (DE)
Title: MIcroprocessor controlled access of equipment - has character generator with converter coupled to comparator to control access
Inventor: WIRTH ROLAND DIPL ING
IPC: G07C9/00
Filed: 1980-02-28
Abstract: An electronic gating circuit is used for the control of security access to equipment e.g. data terminals, telephones, security systems etc. The system is designed to prevent misuse. A microprocessor (1) forms the basis of the system and incorporates a character generator (2), comparator (3) and memory (4). Output is transferred over an interface (5) to a code converter (6) that in turn supplies an input unit (7). When a start signal is generated the character generator outputs a character string that is modified and transferred to the output. After conversion they are fed into the comparator to control the access to the coupled unit (8).
Patent DE-3007781-A1 (DE)
Title: Infinitely variable drive pressure control system - has pressure limit value between constant output pump and throttle
Inventor: KRUSCHE ALFRED
IPC: F16H61/40
Filed: 1980-02-29
Abstract: The control system is for infinitely variable hydrostatic drive whose setting is determined by a control pressure generated in a flow in front of a throttle by a constant output pump, driven at the speed of the drive input shaft. A branch pipe from that between the pump and throttle leads to the control pressure pipe. Between the junction point (16) of this branch pipe (9,12) and that from the pump (1) to the throttle (6) is a pressure limiting valve (3). The throttle may be adjustable, its adjusting member (7) and that of the driving engine being coupled together.
Patent DE-3008885-A1 (DE)
Title: Binary representation for telecommunications data transmission - uses binary steps in binary code utilising one half-wave of AC current
Inventor: DIRR JOSEF ING GRAD
IPC: H04L27/24
Filed: 1980-03-07
Abstract: The system represents a binary step by using one half-wave of an ac current (LF or HF) and marks the two identification states by the greatest amplitude and none by the magnitude of a fraction of the greatest amplitude (ie at least half the greatest amplitude). No special marking is used for the end of a code word. The end of the word is determined by the number of half waves or changes. Coding may be achieved by phase keying or by using half waves of different frequencies and/or in combination with other known methods of coding.
Patent DE-3011378-A1 (DE)
Title: Convection heater with storage unit - has passage divided by vertical panels with inclined guide plates at bottom
Inventor: NUETZEL JUERGEN
IPC: F24H7/04
Filed: 1980-03-25
Abstract: The heater with storage unit is of the convection type, either free or forced by fan, having air outlets and inlets at top and bottom respectively. A heat source (9) sufficient for the maximum output is mounted immediately adjacent to the side of the storage unit (11) towards a flow passage, the upper part of the latter being divided by vertical panels (18.1) into individual channels (18.1'). Each panel has an inclined guide plate (17.1) at the bottom, the lower edges of the panels and the plates lying in common planes (X,Y). Plane (Y) is so inclined that the projection of each aperture cross-section between lower plate edges both on the plane of the bottom (7) and also on one at right angles to it has a set area. This latter plane extends across the discharge flow (22.2) from the fan (10).
Patent DE-3020898-A1 (DE)
Title: Active inertial rudder torque converter - has circulation drive with axis coaxial with drive and driven shafts and adjustable gyro
Inventor: STROBEL CHRISTIAN DIPL ING
IPC: G01C19/02
Filed: 1980-06-02
Abstract: The torque converter housing is of circulation type, which is reversible without change of drive direction of rotation, simply by changing the direction of the gyro. With the moving input shaft and idling output shaft, the idle run of the clutch is adjustable by decoupling of the gyro drive. For attaining a small dimension of the adjusting members and latching elements the thrust pot has a small-diameter hub with a sliding fit on the driven shaft. The hub carries a race of a double roller bearing in an interference fit. The setting ring of the bearing is rollably decoupled from the housing rotation and is connected non-rotatably with the thruster. Alternatively the radio stud of the hub are replaced by strengthened strips axially protruding through the housing bottom against the driven gear.
Patent DE-3023594-A1 (DE)
Title: Speed measuring system for railway wagon track braking - uses successive values to obtain mean speed corrected in accordance with required retardation
Inventor: STUBBE KARL DIPL PHYS
IPC: B60L15/20
Filed: 1980-06-24
Abstract: The system uses a series of measured speeds obtained one after the other over a measuring interval. The mean value of these measured speeds is added to a correction value obtained from the required retardation due to braking. Pref. the speed measuring unit is coupled to a processing circuit forming the mean value from a given number of successive measured speeds and feeding it to an adder receiving the correction value from a store, the adder output fed to the braking control circuit. The processing circuit may include a plausibility checking stage for verifying the measured speeds by comparison with previous values. The system is used in conjunction with track braking control in a marshalling yard.
Patent DE-3029953-A1 (DE)
Title: Control appts. for multiple programmable welding stations - esp. for computer controlled spot welding of motor car bodies, where read-write memory can alter welding parameters
Inventor: WOHLGEMUTH BERND ING GRAD
IPC: B23K11/25
Filed: 1980-08-05
Abstract: Each welding station has its own independent, programmable electronic control unit (ICU). Between all the ICUs and a central computer is a control appts. for adjusting and displaying the welding program parameters (WPP). The control appts. is connected to a memory store (I) contg. the working programs for each ICU, and to a read/write memory (II) for the WPP. Memory (II) has storage stations for each WPP; for the numbers of each welding program and each ICU; and for each type of welding. All these stations can be directly addressed by a switchboard actuated by a digital keyboard. Used e.g. with a multiple spot welding appts. for mfg. motor car bodies. All the WPP can be displayed for each ICU and easily altered with min. loss of prodn. time.
Patent DE-3038834-A1 (DE)
Title: Electronic correction instrument for thermoelement - operates continuously by subtracting function of time, temp. and thermo-wire dia.
Inventor: KOERTVELYESSY LASZLO VON DIPL
IPC: G01K7/14
Filed: 1980-10-15
Abstract: The instrument for processing the signal of a thermoelement is placed at least partially in the thermoelement head or electrically connected to the thermowires directly or indirectly. The thermoelement signal rather than its material is continuously corrected electronically. The instrument corrects the thermoelement signal to a compensated value by subtracting from it the correction factor which is a function of time, temp. and the dia. of the thermowire. The correction factor is composed of identically measured constants for thermoelements which have been mass-produced, i.e. made from a single drawing. The correction factor temp. variable is obtained from the signal of the thermoelement whose signal is to be corrected. The correction instrument can also be used with resistance thermometers.
Patent DE-3040151-A1 (DE)
Title: Electrically controlled central heating valve - has thermally reacting and electrically heatable expansion body controlling valve member position
Inventor: SIEWERT HANS-JUERGEN
IPC: G05D23/19
Filed: 1980-10-24
Abstract: The valve for a central heating system with electric control has an expansion body which can be electrically heated and reacts to heat. The change of shape of the body on heating or cooling actuates the shifting of the valve, completely or partly, in response to the electric heating operation. It controls the volumetric flow in the system radiators and thus the room temperature. On, in, or in the close vicinity of the expansion body is mounted a small electric heater. The switching of the latter changes the shape of the expansion body and thus the operating point of the control valve. According to the design mode, the heating of the expansion body can actuate opening or closing of the valve. This design provides a simple and robust electrically controlled valve.
Patent DE-3046646-A1 (DE)
Title: Thermal composing of refuse or mixt. with sludge - by successive layering over filter bed receiving humidity and temp. controlled air
Inventor: WILLISCH HANNES
IPC: C05F17/00
Filed: 1980-12-11
Abstract: Parent patent described a system of converting refuse or a mixt. of refuse with sewage sludge into compost by comminution and by storage in layered dumps over an air filter bed on a grid which receives a supply of air from a blower. Vertical chimneys are left in each successive layer. The air is introduced at a temp. between 20 and 60 deg.C and at a relative humidity to compensate for the water loss due to the air emerging from the dump. This results in an aerobic rotting process which is uniform across the cross-section of the dump and prevents the origin of biologically inactive layers.
Patent DE-3105069-A1 (DE)
Title: Process and apparatus for the production of a glass fibre for optical waveguides
Inventor: UNRAU UDO DR ING
IPC: C03B37/023
Filed: 1981-02-12
Abstract: The invention relates to a process for the production of glass fibres for optical waveguides. The glass fibres are drawn continuously from a tank containing a molten glass mixture containing a dope (dopant). The dopes are fed to the glass by a dispenser arranged symmetrically to the axis of the tank in or around the latter. The movement of the dopes can additionally be supported by an electric field. <IMAGE>
Patent DE-3110337-A1 (DE)
Title: Sensor for detecting path lengths
Inventor: KABUS HORST
IPC: B23Q17/22
Filed: 1981-03-17
Abstract: The invention relates to a sensor for detecting path lengths. It has a cylindrical housing which is tightly sealed at its end faces. Arranged in this housing is a scale, which extends in the longitudinal direction thereof, and a probe, which are both arranged to be movable relative to one another in the longitudinal direction of the scale. For this purpose, the probe is guided on a guide device on which there is mounted a tubular connecting element which extends in the direction of movement of the probe and is led out in a sealed fashion from a housing end wall on the circumference. A connecting cable connected to the probe is led in a sealed fashion through the connecting element. The connecting element is held at its free end in a mounting member, which is to be mounted on a part which executes a relative movement with respect to the part supporting the housing. In this sensor, the components serving to detect path lengths are reliably protected against pollution and can be jointly mounted, the movement tracks of the parts which can move relative to one another being aligned with high precision relative to one another without the need to pay heed to this when mounting the sensor.
Patent DE-3115030-A1 (DE)
Title: Quaterpolymers of the tetrafluoroethylene-ethylene type
Inventor: SULZBACH REINHARD DIPL CHEM DR
IPC: C08F210/02
Filed: 1981-04-14
Abstract: The invention relates to quaterpolymers comprising 55 to 30 mol% of copolymerised units of tetrafluoroethylene, from 60 to 40 mol% of copolymerised units of ethylene, from 10 to 1.5 mol% of copolymerised units of hexafluoropropylene and from 2.5 to 0.05 mol% of copolymerised units of a vinyl monomer of the formula  CH2=CH-O-CFX5H in which X5 is F, Cl or DF3. They are suitable for the production of mouldings such as films, tubes, rods and injection mouldings and monofilaments or coatings for electrical conductors.
Patent DE-3119202-A1 (DE)
Inventor: RULAND ALFRED DIPL CHEM DR
IPC: A01N47/48
Filed: 1981-05-14
Abstract: 1. A process for the preparation of iodomethyl thiocyanate, wherein chloro- or bromomethyl thiocyanate is reacted with an inorganic iodide in an organic solvent at a temperature of from 10 to 100 degrees C.
Patent DE-3131122-A1 (DE)
Title: Circular saw blade
Inventor: FELDE JOERG DIPL ING
IPC: B27B33/20
Filed: 1981-08-06
Abstract: In circular saw blades with saw teeth (1) at the outer periphery and a centrally located clamping opening (2), there are cutting recesses (3, 6) in various diametral areas of the saw blade, that is, cutting recesses (3, 6) running essentially radially on the outside and inside, the rear edges of which in the peripheral direction of the saw blade are provided with cutting strips (5, 7) projecting laterally from the saw blade and made of carbide or the like, the inner cutting recesses (6) having a profile widening to an increasing extent in the radial direction to the outside, in particular a sector profile. In order to make the circular saw blade free of internal stress to an even greater degree and to enable high tangential stresses to appear during the sawing operation while at the same time adequately removing the sawdust through the inner cutting recesses, four of such inner cutting recesses (6) are arranged in uniform distribution all around and are staggered relative to the outer cutting recesses (3). <IMAGE>
Patent DE-3138941-A1 (DE)
Title: Closing strap for bundling skis
Inventor: LOEFFELHOLZ EBERHARD
IPC: A63C11/02
Filed: 1981-09-30
Abstract: Published without abstract.
Patent DE-3143666-A1 (DE)
Title: Control device for influencing the engine output of a motor vehicle
Inventor: BRUGGER FRANZ
IPC: B60K28/16
Filed: 1981-11-04
Abstract: A control device is described for influencing the engine output of a motor vehicle which is equipped with a drive control device and/or with a speed control device. The action to vary the output is achieved by adjusting the output control element by means of an electrical servomotor used for both control devices. So that the output control element, which is pivotally connected to the accelerator pedal by way of a control linkage, can perform the necessary adjustment stroke when the respective control device is actuated, even when the driver holds the accelerator pedal in a position associated with a specific engine output, spring-elastic buffers are provided as part of the control linkage, against the recovery force of which the engine-controlled adjustment stroke can be performed.
Patent DE-3144480-A1 (DE)
Inventor: STAHLHOFEN PAUL DIPL CHEM DR
IPC: G03B1/56
Filed: 1981-11-09
Abstract: Disclosed is a light-sensitive mixture comprising (a) a 1,2-quinonediazide or a mixture of (a1) a compound forming an acid on exposure and (a2) a compound having at least one C-O-C bond cleavable by acid; (b) a water-insoluble binder soluble in aqueous-alkaline solutions; (c) a photolytically cleavable organic halogen compound of one of the formulae    <IMAGE>  I   <IMAGE> II  in which R1 denotes an aromatic radical bonded directly or via a conjugated chain, and X denotes a halogen atom; and (d) an azo dyestuff containing at least one nitro group in the molecule. Also disclosed are light-sensitive copying materials produced from these mixtures.
Patent DE-3144990-A1 (DE)
Title: Electrophotographic copying method
Inventor: NISHIKAWA MASAJI
IPC: G03G13/26
Filed: 1981-11-12
Abstract: An electrophotographic copying method for optionally producing a direct (positive) copy or an inverse (negative) copy of an original uses an electrophotographic recording material which has a first and a second photoconductive layer which are sensitive to radiation of a first and a second optical waveband, respectively. It can optionally be subjected to the following method steps:   a) simultaneous charging and irradiation of the recording material with an image of an original which is generated by radiation of the first waveband, followed by uniform exposure by radiation of the second waveband, as a result of which the charge retained in a section of the recording material which corresponds to the dark zone of the image produces a positive charge image, or b) simultaneous charging and irradiation of the recording material with an image of an original which is generated by radiation of the first waveband, followed by an inverse charging operation which reduces the surface potential essentially to a zero potential and is followed by uniform exposure with radiation of the first waveband, as a result of which the charge retained in a section of the recording material corresponding to the bright zone of the image produces a negative charge image. u
Patent DE-3149954-A1 (DE)
Title: Screened metallic simulation chamber for electromagnetic radiation
Inventor: NEDTWIG JOACHIM DIPL ING
IPC: G01R29/08
Filed: 1981-12-17
Abstract: In simulation chambers for electromagnetic radiation, the limiting frequency above which higher modes form decreases with increasing volume. Said higher modes act on a test piece (P) with undefined field distributions. In order to create such a chamber for very high limiting frequencies with a homogeneous field distribution, the centre conductor (M) is spatially constructed in such a manner that small, preferably approximately equal, geometrical separations (a and d) are maintained between said centre conductor and the chamber walls (A) and the test piece (P). The centre conductor (M) is advantageously constructed from round, variably arranged metal tubes with threads or bayonet connections, which have a good electrical contact between them. <IMAGE>
Patent DE-3150630-A1 (DE)
Title: Supporting bracket
Inventor: FRICKER SIEGFRIED
IPC: E04F13/08
Filed: 1981-12-21
Abstract: In a supporting bracket having a vertical leg (10), a horizontal cantilever arm (30) and a stabilizing strut (40), the vertical leg possesses supporting lugs (11) which can be placed, as desired, on a bearing shoulder (21) of a supporting plate (20) which, for its part, possesses an obliquely running passage opening (22) through which passes a connecting element (23) holding the entire building component. By virtue of the arrangement of the supporting lugs (11), a coarse adjustment through the slotted passage opening (22) of the supporting plate (20) and a fine adjustment of the vertical position of the supporting bracket can be carried out. Preferably, the vertical leg is constructed from two substantially parallel rolled sections (13, 14) which receive the stabilizing strut (40) and the cantilever arm (30). <IMAGE>
Patent DE-3204054-A1 (DE)
Title: Integrated-circuit resistor and process for producing it
Inventor: TSAI NA-HSIUNG
IPC: H01L21/02
Filed: 1982-02-06
Abstract: The resistor comprises a resistance zone and regions, which form supply and drain leads to the resistance zone, of high conductivity. The resistance zone is composed of a section of a polysilicon strip and the leads are preferably tungsten-coated regions on the polysilicon strip. This polysilicon resistor requires less substrate area. To produce the resistor, a protective oxide layer, which prevents any undercutting of the oxide layer situated underneath said silicon strip, is preferably grown on the sides of the silicon strip. This also prevents the formation of tungsten behind the strip or along the sides of the strip, and the appearance of stresses across the strip.
Patent DE-3204670-A1 (DE)
Title: Method of cleaning breaker plates (strainer plates)
Inventor: JANSEN HANS-GUENTER
IPC: B29C48/03
Filed: 1982-02-10
Abstract: In order to free breaker or strainer plates of extruders from residues of plastic lodging in their flow channels (holes), the strainer plates are cooled for cleaning down to temperatures below 0 DEG C, preferably to -20 DEG C.