baber/WOPTO huggingface dataset:
Patent DE-2935777-A1 (DE)
Title: Electronic temp. limitation switch for boiler, heater etc. - uses differential amplifier to compare detected and preset temps.
Inventor: DOLD OTTO ING GRAD
IPC: G05D23/22
Filed: 1979-09-05
Abstract: The switch has a difference stage obtaining the difference between the signal from a temo sensor and the selected required temp limit. The output of the difference stage is supplied to an amplifier, which responds to this difference being zero to initiate disconnection. A thermoelement (4) is used as the temp sensor, coupled between one input of an operational amplifier (5) and the centre-top of a resistive voltage divider (R1,R2). The latter also has a variable tap-off (R13) for setting the required temp. limit coupled to the other input of the operational amplifier (5). Pref. an IC oscillator (11) controls a transistor (T1) connected in series with a resistor (R6) between the first input of the operational amplifier and earth, for periodic short-circuiting of this input. The output of the operational amplifier (5) is coupled via a transformer with the switching element (RS).
Patent DE-2939347-A1 (DE)
Title: Starting circuit for thyristor-controlled electromotor - has diacs and diodes of Rc circuits connected to thyratron device
Inventor: MENGE EBERHARD ING GRAD
IPC: H02P6/20
Filed: 1979-09-28
Abstract: The starting circuit has a resistor (RS1) connected across the anode and gate of a device with thyratron characteristics, and a capacitor (CS1) connected across the cathode and gate of the same device. A diac (DC1) connects the junction between resistor and capacitor to the gate. A diode (D3) connects the same junction to the coil (STSP) that detects rotor position. The capacitor and resistor are chosen such that the charging time of the capacitor is longer than the cycle time of the control current resulting from the motors operation. The cycle time is less than the difference between the charging time of one capacitor (CS1 or CS2) and that of the remaining capacitor (CS2 or CS1).
Patent DE-2942364-A1 (DE)
Title: Di:chloro-quinoxaline carbonamide cpds. prodn. - esp. reactive dyestuff or precursor from amine in aq. medium and molten acid chloride
Inventor: GLEINIG HARALD DR
IPC: C09B62/36
Filed: 1979-10-19
Abstract: Prodn. of 2,3-dichloroquinoxaline 6-carbonamide derivs. of formula (I) (in which Z is an organic gp., R is H or 1-4C alkyl, n is 1-4), involves reacting amines (II) of the formula Z-(NHR)n with n mole 2,3-dichloroquinoxaline-6-carbonyl chloride (III) in aq. medium, (III) being added in molten form to an aq. (II) soln. or suspension. (I) can be a reactive dyestuff or precursor. It is obtd. in high yield and excellent purity.
Patent DE-2944113-A1 (DE)
Inventor: MUELLER ARNO DIPL PHYS DR
IPC: A61B5/00
Filed: 1979-10-31
Abstract: 1. A process for the quantitative determiantion of a dissolved optically active substance in aqueous or non-aqueous solutions by means of polarimetry by splitting the light beam after the sample by means of a beam splitter, thereby producing a measuring beam and a reference beam, and forming a difference or quotient signal of the signals of the measuring and the reference beam detected by corresponding detectors, whereby the polarized light of the light source prior to passing through of the sample is eventually subjected to frequency, phase, or amplitude modulation, and the difference or quotient signal formed of the signals of the measuring and the reference beam is demodulated correspondingly, characterized in that for simultaneously obtaining beam splitting and an analyzing effect the light beam after the sample is directed to an optical interface at an incidence angle (alpha) between the polarization angle and the limit angle of total reflection.
Patent DE-2948555-A1 (DE)
Title: Light sensitive mixt. contg. polyurethane resin - from isocyanate prepolymer and poly:ol and diazonium salt polycondensate for negative working printing plate
Inventor: PALMER ROLAND PROF DIPL CHEM D
IPC: G03F7/021
Filed: 1979-12-03
Abstract: Polyurethane resin (I) used as binder in a light-sensitive mixt., contg. a light-sensitive diazonium salt polycondensation prod. (II), is a reaction prod. of a (branched) polyurethane prepolymer (III) with terminal free NCO gps. and a cpd. (IV) with min. 3 OH gps. in the mol. Pref. (I) has mol.wt. of under 1500 and is the reaction prod. of (III) and 1 mole (IV) per equiv. NCO gp. in (III). (IV) is an at least trihydric aliphatic alcohol. The mixt. contains 0.5-4 (wt.) pts. (I)/pt.(II). Compsn. is negative working and is useful for making printing plates. It can be developed more easily and reliably than the usual mixts.
Patent DE-2949149-A1 (DE)
Title: Steel reinforcement for bottom of polyurethane shoe - is round in heel, flattened in sole and plastic sheathed
IPC: A43B23/22
Filed: 1979-12-06
Abstract: An insert formed from a single piece of steel for reinforcing the bottom of a shoe of polyurethane, has a rising or vertical section passing through or attached to the heel which is circular in cross-section. The insert then curves over the downwards widening out into a flat section with stabilises the shoe bottom. A permanent fastening of the insert into the bottom of the shoe, as well as the prevention of unevenness of the inner sole, and the longer life of the shoe generally, are guaranteed by the embedding of the insert first of all in a sheath of synthetic material. This is held in place by stiffening ribs and openings in the metal. The heel section of the insert may have an opening to receive a replaceable wearing stud.
Patent DE-3003424-A1 (DE)
Title: Curtain coater control system - has sync. hydraulic motor for conveyors and roll engaging doctor blades
Inventor: CLAYTON A WILEY
IPC: B05C5/00
Filed: 1980-01-31
Abstract: The curtain coater includes separate infeed and outfeed conveyors defining a space. Two separate coating systems are mounted on a carriage in the space for selective movement into a coating position. Each coating system includes a separate coating head, trough for the recovery of unused coating material, and doctor blade. A chrome roll is positioned in the space for selective engagement by the doctor blades. When the first head is in the coating position, the first doctor blade engages the roll and the second doctor blade is in a storage position covering the second trough to close the second coating system. A synchronous driving mechanism for the infeed conveyor, roll and outfeed conveyor includes hydraulic motors for the roll and outfeed conveyor.
Patent DE-3012362-A1 (DE)
Title: Wardrobe with hanging mirror - has light at top and support at bottom, with cover plate
Inventor: HASS HERMANN
IPC: A47B67/00
Filed: 1980-03-29
Abstract: The wardrobe with hanging mirror, has a support (4) for the mirror underneath, and lighting at the top (5). The side of the wardrobe (6) facing the wall mirror (1) is of such a size that the wardrobe with its base plate (7) can be placed on the support (4). The back of the cupboard and the side of the wardrobe (10) facing the mirror (1) extend only as far as the light. The space up to the top of (13) the cupboard at the front is covered by a plate (14) which can be inserted and extracted. The fixture plate for the mirror (1) has a groove at the top, into which a projection on the underneath of the wardrobe's top (13) fits.
Patent DE-3015902-A1 (DE)
Title: Culturing Streptococcus pyogenes - to yield antitumour agent streptolysin S, using sugar as carbon source and controlled pH
Inventor: INOUE SHINTARO
IPC: A61K35/74
Filed: 1980-04-24
Abstract: Streptococcuspyogenes is cultured in a medium containing fermentable sources of carbon, and at a pH of 5.6 or above throughout the whole culture period. The medium pref contains 0.1-5% fermentable C, such as mono- or di-saccharides esp glucose or sucrose. The pH is pref kept at 5.6-7.5 (6-7), by addn of an alkali. The culture medium is pref prepared by the addn of the fermentable carbon source to a yeast extract medium or a soya-peptone medium. Known cultures of S.pyogenes in the presence of fermentable carbon sources give an extremely poor yield of (I). Cultures in which the C source is not fermentable give (I) in moderate yeild, but the cells do not multiply very well. This new process gives a very healthy growth of S,pyogenes coupled with a good yield of (I).
Patent DE-3017775-A1 (DE)
Title: Dip soldering for semiconductor components - without flux using hot reducing atmos. for dipping and cold neutral atmos. for extn.
Inventor: GOETZENBRUCKER OSWALD
IPC: B23K35/38
Filed: 1980-05-09
Abstract: Soldering material is applied to assembly parts for use in semiconductor devices without any necessity for flux by dipping the parts in the solder bath through a hot reducing atmosphere directly above the bath level. During the extraction operation, this is replaced by a cold neutral atmosphere. The former is produced by a curtain of hydrogen flames above the bath surface, the latter by an inert gas, e.g. nitrogen. The heated solder bath tank (1) is filled to near the rim with molten solder (2). A perforated tube (3) produces hydrogen flames (4) when the valve (5) is coupled to an H2 supply. For the extraction, the valve is switched over to a nitrogen supply; after 3 seconds, the temperature has dropped enough to leave enough solder adhering to the semiconductor components. This combines the advantages of the dip soldering process (freedom from flux and oxidation) with that of producing thick layers of solder.
Patent DE-3018636-A1 (DE)
Title: Paint applicator for embossed plates - has vessel with suction union below support plate with suction holes
Inventor: UTSCH JOACHIM
IPC: B05C1/02
Filed: 1980-05-16
Abstract: The machine applies paint to embossed plates. It has a support plate with an aperture through which a support roller protrudes from underneath and a rubber paint application roller against which a metering roller runs. A closed vessel (7) is mounted below the support plate (1), which has near the aperture (5) a large number of suction holes (8). The vessel has a suction union (9). The machine is partic. for paints containing a nitro-based solvent, which gives off harmful and inflammable vapours.
Patent DE-3026776-A1 (DE)
Title: Sharpener for ski edges - has grinding wheel driven by electromotor via friction coupling and mounted in casing with guide shoe
IPC: A63C11/06
Filed: 1980-07-15
Abstract: The sharpener has a grinding wheel (10) mounted inside a casing (12) with a guide shoe (5). The guide shoe slides along the underside of the ski (1) and the wheel grinds the ski's edge (2). The wheel is driven via a friction coupling from an electromotor (6) also located in the casing. The coupling consists of a roller (7) fixed to the motor's shaft and pressing against the periphery of the wheel. The wheel can be adjusted axially by a screw (14). The roller is long enough to allow the wheel to move axially over its full range without loss of coupling. The advantage lies in simple mfr. and easy use.
Patent DE-3029780-A1 (DE)
Title: Initiating crystallisation of supercooled melt - with initiator effective only in supercooled temp. region, useful in latent heat store
Inventor: TERMONT RUDOLF
IPC: F28D20/02
Filed: 1980-08-04
Abstract: Initiation of the crystallisation of supercooled melts of one or more chemical substances, e.g. salts, is effected by placing insert(s) in the melt or on the walls of the vessel which act as initiator(s) only in the supercooled temp. range. The inserts are crystals or mechanical inserts, e.g. wires, rods, tubes, spirals etc., the surface of which wholly or partly contains crystals with a structure isotypical or epitaxial w.r.t. the me.t and with a m.pt. above the max. temp. occurring when the crystals are melted. To initiate crystallisation, the crystals are cooled by external means, pref. by Peltier element(s) or batteries or by thermodynamic equipment. The insert can be pt. (of the vessel walls) of a cooling aggregate, heat pump, heat exchanger or adiabatic equipment using the cooling of expanding gases (CO2). The process is used in latent heat stores and allows the advantages of supercooling to be utilised.
Patent DE-3031565-A1 (DE)
Title: Fluid proportioning throttle valve - has armature assuming arbitrary position within motion range after magnetic coil excitation
Inventor: POLEMITIS JOHANNES DIPL ING
IPC: F16K31/06
Filed: 1980-08-21
Abstract: The armature of the electrically controlled throttle valve can assume any arbitrary position within its entire movement range. The positioning depends on its magnetic coil being excited by a current of corresponding strength. This effect alone provides a throttling action. The valve has an aperture closed in the currentless state, and another aperture closed in the valve energised condition. Preferably a pressure range adjustment is enabled by mechanical elements. The valve cooperates with a pressure detector enabling both piezo-resistive and piezoelectric pressure measuring. Another type of pressure measuring may be provided by magnetic force compensation. A display may indicate when the valve range is outside its pressure control region and cannot operate effectively anymore. The rated value for the valve operation may be adjusted manually by a ootentiometer.
Patent DE-3044601-A1 (DE)
Title: Sifting and milling plant - has air stream sifter fitted next to discharge end journal returning coarse particles into tube mill by worm conveyor
Inventor: HENNE HEINRICH DIPL ING
IPC: B02C17/18
Filed: 1980-11-27
Abstract: The sifting and milling plant consists of a tube mill working in conjunction with an air stream sifter. Material to be ground is fed at one end (19) into the tubular mill (1) and ground material leaves the plant via a discharge end (7). The tube mill (1) rotates on rollers (3) at one end of the tube and is seated on a hollow journal (9) at the other end. Ground material is carried by an air stream into the sifter (2) fitted directly on the extended part of the hollow journal (9). Coarse particles are retained by the screen (15) of the sifter, air and fine particles escape from the sifter via a connection (23). The coarse particles drop back through the connecting tube (10) into the extended part (13) of the journal (9) from where they are transported back into the tube mill (1) by a screw conveyor (11).
Patent DE-3045402-A1 (DE)
Title: Tilting hot air grate - has piping at heart of fire and includes fan for air circulation
Inventor: COLLET WERNER
IPC: F24B1/188
Filed: 1980-12-02
Abstract: The tilting hot-air grate is for an open fireplace already in existence, so as to make best use of the heat energy available. The piping absorbing and conducting the heat is so designed that it is at the heart of the fire, i.e. where heat is greatest. The equipment can be designed to fit in any fireplace without modification to the latter. A fan can be included for air circulation, and the grate can be arranged to tip upwards for easy cleaning.
Patent DE-3046350-A1 (DE)
Title: Oil or gas fire flue shutter - has cover on flap shutting by=pass port when open
Inventor: EPPINGER OTTO
IPC: F23L11/00
Filed: 1980-12-09
Abstract: The shutter mechanism is for the air intake or flue of an oil- or gas-burning fire, it has a flap turning on a shaft between the open and shut positions. In the intake or flue (1) is a bypass port (1d), while a cover (13) is fixed to the moving part of the flap (2). Thus when the flap is open this cover shuts off the port, while when it is shut the port is open. The cover can have a seal (14) towards the port, and there can be a union boss (15) at the latter, on the outside of the intake or flue, typically connected by a pipe to the exterior of the building.
Patent DE-3100553-A1 (DE)
Title: Drawing device for binocular microscopes
Inventor: GROSSER JOHANNES DIPL PHYS
IPC: G02B21/00
Filed: 1981-01-12
Abstract: The aim of the invention is to provide a device for reproducing the image of the observed object by drawing it, which can be used without exchanging optical components for left-hand use and right-hand use and which in the case of microscopes having complicated tubes does not require any additional design outlay on the tubes, and causes smaller torques and bending moments. In accordance with the invention, a drawing area beam path is realised which extends optionally on the one or other side relative to the plane of symmetry of the microscope and allows the drawing hand to appear correctly oriented in every case. This is achieved by arranging the beam splitter with its surface normal parallel to the plane of symmetry of the microscope. The image-displacing optical system, the beam splitter, the reflection system and the imaging system are housed in two modules connected by a coupling point, in an adapter and in a horizontal arm which can optionally be set to one or other side.
Patent DE-3100565-A1 (DE)
Title: Device and method for sealing a leakage point in a pressurised pipeline
IPC: F16L55/168
Filed: 1981-01-10
Abstract: The invention is based on a device for sealing a leakage point in a pipeline which is pressurised by a fluid medium. The device includes a compression shell, which can be placed on the pipeline and bridges over the leakage point, having at least one connecting piece for forcing in a sealing agent and at least one venting connecting piece. The compression cell can be placed on the pipeline such that its shell edge is sealed to said pipeline. Its shell cavity can be filled by extrusion with a curing sealing agent. In addition, a secondary shell is provided, with a connecting piece for forcing in the sealing agent and a venting connecting piece, by means of which the compression shell can be bridged over. The connecting piece for forcing in the sealing agent and the venting connecting piece of the compression shell are passed through the secondary shell. The secondary shell can also be placed on the pipeline with its secondary shell edge forming a seal on the pipeline, and its shell cavity can likewise be filled, by extrusion, with a curing sealing agent. <IMAGE>
Patent DE-3101329-A1 (DE)
Title: Convertible chair
Inventor: SCHEFTHALER ALOIS
IPC: A47C1/0355
Filed: 1981-01-17
Abstract: A convertible chair, consisting of a seat part (1) with a leg support gearing (26) linked thereto and a backrest (3) which is adjustable independently of the seat part (1). To improve the seating comfort and to simplify handling, the adjustment of the seat part (1) and of the leg support gearing (26) takes place with the aid of an electric gear motor (5). The electric gear motor (5), which can be arranged in the centre of the chair below the seat part (1), engages with a connecting rod (11) via a rotary cylinder piston (17) on the rear leg support links (9) and thus actuates the extension and retraction movement of the leg support (2), the seat part (1) and the backrest (3) being moved, in dependence on said movement of the leg support, into a slightly sloping position with an unchanged angle relative to one another. Independently of the adjustment of the seat part (1) and the leg support (2), the backrest (3) can be moved, driven by a gas pressure spring (27), via a pivot (22) infinitely variably into any desired sloping position. <IMAGE>
Patent DE-3103273-A1 (DE)
Title: Circuit arrangement for controlling a bistable relay with the aid of a voltage-doubler circuit
Inventor: DROSSEL MICHAEL ING GRAD
IPC: H01H47/22
Filed: 1981-01-31
Abstract: The subject-matter of the invention is a circuit arrangement for operating a bistable relay whose winding is connected in series with the capacitor of a voltage-doubler circuit which is known per se. In order that the relay is itself not prematurely energised while the charge state for the capacitor is being produced, the relay winding is short-circuited during the production of the initial state, it being possible to effect the short-circuit by switching the emitter-collector junction of a transistor on, the control electrode of which transistor can be influenced in an appropriate manner by the actual relay controller.
Patent DE-3108338-A1 (DE)
Title: Cable plug for connecting cables to printed-circuit boards
Inventor: HEITZIG CLAUS-PETER
IPC: H01R12/50
Filed: 1981-03-05
Abstract: A cable plug for connecting cables (K1, K11, K12) to printed-circuit boards (L) on which, in addition to the cable plugs, assemblies (BG1) can also be mounted within the context of a construction system. The cable plug (KST1) consists of a plug connector, of a wiring box (VK1), of an upper guide part (OFT1), of a lower guide part (UFT1) and of a front panel. The cable (K1) is connected to the wiring box (VK1) and is bent outwards in the space between the wiring box, the lower guide part (UFT1), the front part (KFT1) and the upper guide part (OFT1). <IMAGE>
Patent DE-3109730-A1 (DE)
Title: Self-loading pistol
Inventor: KORTH WILLI ING GRAD
IPC: F41A3/40
Filed: 1981-03-13
Abstract: Figure 1 shows a self-loading pistol (automatic pistol) in the form of a mechanically locked recoil loading device. The lock between the barrel housing and the breech is effected with the aid of a powerful bolt which is constructed as an angled lever. This bolt is supported in a lateral web of the breech such that it can pivot. It takes part in the movement of the breech and, during a portion of this movement, its longer arm engages in a bolt recess on the underneath of the barrel housing. The other arm of the bolt interacts with the pistol's return spring. The end surface of the bolt is used together with a damping cushion in the grip for elastic limiting of the recoil movement of the breech.
Patent DE-3110112-A1 (DE)
Title: Open, stackable refuse container
Inventor: BOCK NORMANN
IPC: B65D88/02
Filed: 1981-03-16
Abstract: A collecting container for refuse is provided for optional loading and stacking in sliding mode by means of a tipping bridge or in the lifting mode by means of a lifting device. For this purpose, it is equipped both with fittings for the engagement of loading units of the tilting and pushing type and fittings for the engagement of a lifting unit.
Patent DE-3111432-A1 (DE)
Title: Circuit arrangement for regulated supply of a load
Inventor: SCHWARZ GERHARD
IPC: H02J7/02
Filed: 1981-03-24
Abstract: In a mains power supply switching apparatus for variable input voltages, a flyback converter is provided which has a transformer (29) whose primary winding (30) is connected in series with the collector-emitter junction of a transistor (16). The emitter of this transistor (16) is in this case connected to one end of the secondary winding (28) of the transformer (29). <IMAGE>
Patent DE-3113142-A1 (DE)
Title: Implant for the stable inner immobilization of the spine
Inventor: DAAB JANUSZ
IPC: A61F2/30
Filed: 1981-04-01
Abstract: For the stable immobilization of the spine an implant is used in the form of a plate (1) of strip or sheet metal which has wedge-shaped cut-outs (2) on the two ends of the plate (1) which are arranged symmetrically towards the centre relative to the longitudinal axis and terminate in a rounding-off (5). The wedge-shaped cut-outs (2) form legs (3) having teeth (4) with rounded feet and sharp points offset by half a division on the inner side. The tooth points (4) are preferably arranged at an angle of 45 DEG  along the legs (3) and are bevelled in the opposite direction on the opposite legs. On the outside, the plate is narrowed in its central part (6). The implant used in bone surgery is intended to grow together with the bone, so that an external cast is superfluous. <IMAGE>