baber/WOPTO huggingface dataset:
Patent DE-2535357-A1 (DE)
Title: Nitrogen oxide reduction - using steam hydrocarbon injection
Inventor: REED ROBERT D
IPC: F23C6/04
Filed: 1975-08-07
Abstract: NOx gases are reduced by (a) burning fuel and stoichiometric air (support gas) in a first refractory chamber (b) introducing NOx gases (c) introducing mixt. of hydrocarbon gas and steam to form reducing atmos. (d) passing gas effluent at 2000 degrees F to a second refractory chamber (e) rapidly cooling the effluent to 1250 degrees-2000 degrees F and (f) adding air to second chamber to burn excess combustibles. Pref. gases such as H2, Co and/or CH4 may be supplied direct to provide the reducing atmos. Since reducing atmos. is not provided by burner operation, close control of fuel burning is not required.
Patent DE-2542782-A1 (DE)
Title: Rotary component drive - gas or fluid controlled drive performs translatory motion which is converted into rotation by rack and pinion arrangement
Inventor: REICHEL WALTER PROF DR ING
IPC: F15B15/06
Filed: 1975-09-25
Abstract: The device is for moving a rotary component where a gas-or fluid-controlled drive executes a translatory motion while an intermediate component performs motion conversion. The drive has an elastic bellows-type cylinder (12, 12', 12"). One end (13, 13") of this cylinder is held fixed and the other end (14, 14") engages on a pivot arm (16, 16'). The intermediate component has a toothed segment (18, 18', 18") which is fixed to the pivot arm and which meshes with a gear fixed with the rotary component. There is a single bellows cylinder (12) and a return spring (23) and these engage at the same point (22) of the pivot arm (16) between the pivot shaft (12) and the toothed segment (18).
Patent DE-2546226-A1 (DE)
Title: Circuit maintaining constant picture size in TV receiver - with horizontal deflection circuit based on pumping principle and ohmic resistor between voltage stabiliser and charged capacitor
Inventor: HIRSCHMANN WALTER
IPC: H04N3/223
Filed: 1975-10-15
Abstract: Current from the mains is fed through a pumping transistor to the deflection circuit with a charge capacitor serving as a voltage source for further loads. Pumping current is stabilised. A voltage stabilising circuit is in parallel with the charge capacitors (13). It contains between a terminal (22) for stabilised voltage and reference potential a series circuit containing a Zener diode (24) and a resistor (25), and a second series circuit containing emitter-collector path of a first transistor (31) and a resistor (26). Zener diode (24) is connected through a resistor (27) to the base of a second transistor (28), complementary to the first. The second transitor (28) emitter is at reference potential, and its collector is connected through a resistor (29) to transistor (31) base.
Patent DE-2603931-A1 (DE)
Title: Rocker type switch as supplier of AC for toys - consists of magnetic core with three limbs with yoke acting as rocker and resting on outer limb
Inventor: KILIAN HELMUT
IPC: H01F29/10
Filed: 1976-02-03
Abstract: The rocker type switch is designed to supply a.c. for toys without causing interference. It consists of a magnetic core with three limbs. It has several coils and a yoke (5), so that the middle limb carries the input winding (6), and outer limbs (1,3) the output winding (7). The yoke acts as the rocker and controls the magnetic flux, resting on the one or the other outer limb.
Patent DE-2607523-A1 (DE)
Title: Electrically heated curling tongs - have steam generation chamber with heating cartridge and winding body for hair strains
Inventor: STEINEL JUN HEINRICH
IPC: A45D1/04
Filed: 1976-02-25
Abstract: Electrically heated curling tongs incorporates steam generation and is fitted with a hollow cylindrical winding body for the strains of hair. A steam chamber and heating element are built-in in co-axial arrangement. A cover has a floor directed towards the steam chamber and has a heating cartridge fitted inside it. On the front end of the curling tongs and in front of the steam chamber, a water tank with dispenser is fitted. An immersion cover (8) adjustable in the axial direction of the winding body (1) is fitted to provide a stageless adjustable heat output at the steam head (11, 1) of the heating element.
Patent DE-2614960-A1 (DE)
Title: Foldable ultra lightweight structure wall element - has skeleton frame unfolding to stretch air filled plastic tube foil to form e.g. greenhouse
Inventor: HOFFMANN HELMUT
IPC: E04B1/344
Filed: 1976-04-07
Abstract: The ultra lightweight and foldable air chamber walling element facilitates immediate erection of weatherproof, heat-insulated and light-permeated structures, e.g. hangars or greenhouses. A skeleton frame is used to stretch a plastic tube foil sheet, or a tubular web, to form a panel-shaped walling element filled with air and self-stabilising. The foil can be transparent or opaque, and the web coated or non-coated. The skeleton can be a foldable one, used for instantaneous stretching of foil into an air chamber walling element.
Patent DE-2618260-A1 (DE)
Title: Thin walled object observation appts. - consists of hemispherical cupola with light source to illuminate object on support
Inventor: GLUECKER HERMANN
IPC: G02B27/02
Filed: 1976-04-27
Abstract: The housing covers the object under observation in the manner of a screen at the side and from above. The object is placed on a support inside the housing. An observation opening is fashioned in the housing above the object. The side wall of the housing is inclined towards its longitudinal axis. The housing is shaped like a hemispherical cupola and there is a light source to illuminate the object. This light source underneath the support emits beams which pass an annular gap between the housing and support and are reflected from the inclined inner face of the housing.
Patent DE-2626468-A1 (DE)
Title: Heat pump for space or water heating - draws heat from air circulated through ducts in soil
Inventor: ANGER HANS JOHANN GEORG
IPC: F24D11/02
Filed: 1976-06-12
Abstract: A heat pump has an electrically driven compresser (3) and an expansion valve (5). The evaporator (2) is formed by a coil of refrigerant within a chamber (16) through which air (6) is blown by a fan. This air is drawn from the atmosphere through ducts buried in the soil. The air thus circulated is heated by the soil and reaches the evaporator at a temp. of about 2 deg.C at all times of the year. This ensures a good coefficient of performance which is not reduced by low outside air temperatures. The heat is given up in the condenser (4) to water circulating in a space heating system (13). To obtain max. efficiency the heating can be a floor heating (8) operating at a moderate temp.
Patent DE-2632300-A1 (DE)
Title: Demountable swimming pool roofing structure - has arms on monolithic distributor for support tops forming oval pattern
Inventor: BIHLMAIER KURT
IPC: E04H15/02
Filed: 1976-07-17
Abstract: The enclosed swimming-pool structure, used for roofing over swimming-pools, has supports for ground anchorage, which can be covered with foil sheeting. Each consists of a vertical wall section and adjoining curved roof section, with overall assembly providing an oval-plan hangar structure. The top ends of the supports (11) are detachably fastened to a common one-piece distributor element (18), in the form of a centre unit (20, 21) forming a lengthways roof ridge. This has attachment arms (16, 17) for the top support ends fastened to it so as to build up a symmetrical oval distributor shape. Attachment arms may be mounted directly on its two ends in a star-shaped pattern.
Patent DE-2635817-A1 (DE)
Title: Silicon semiconductor with large surface area used in solar cells - is prepd. by vapour deposition on substrate at room temp.
Inventor: EMEIS REIMER DR
IPC: C23C14/04
Filed: 1976-08-09
Abstract: In the prodn. of Si semiconductor of large surface area for making electrical structures, esp. solar cells, with or without doping, deposition from the vapour phase on suitable substrates is carried out by evapn. of Si from an opt. doped source onto a substrate at room temp. Pref. the dopant is Ga, B or Al for p-doping or P, As or Sb for n-doping. Massive Si is used as the Si source. The substrate can consist of a metal acting as contact, e.g., Mo or Al, or a disc of insulating material, e.g., glass, quartz or sapphire. The process is simple and avoids saving, lapping and polishing.
Patent DE-2646650-A1 (DE)
Title: 3-Chloro-3-cyano-2-hydroxy-acrylic acid derivs. - for use as intermediates for pharmaceuticals and plant protection agents
Inventor: CREDNER HANS-HEINRICH DR
IPC: C07D277/24
Filed: 1976-10-15
Abstract: 3-Chloro-3-cyano-2-hydroxy-acrylic acid derivs. of formula (I) are new: (where R1 is 1-18C alkoxy, aryloxy, NH2, mono- or di-(1-18C alkyl)amino, arylamino or a 5-to 7-membered cycloamino gp.). In an example, (I; R1 = OEt) is prepd. by reacting chloroacetonitrile with diethyl oxalate in the presence of NaOEt.
Patent DE-2654453-A1 (DE)
Title: Coupling for securing hub to shaft - has axial force applied by collars having surfaces oblique to shaft axis
Inventor: SCHELL JUN GERMAN
IPC: F16B21/18
Filed: 1976-12-01
Abstract: The device for securing a hub to a shaft comprises a pair of collars seated ina groove of the shaft. The mutually remote faces of the collars are square to the shaft axis and bear against the one shoulder of the groove and an opposite end face of the hub. The confronting faces of the collars are oblique so that on relative rotation of the collars, the faces are urged apart and apply an axial force to the hub. To avoid undue friction at the oblique surfaces the collars are made of material e.g. a plastic having good sliding properties.
Patent DE-2712233-A1 (DE)
Title: Secondary radar interrogation signal receiver - processes signals at various levels using sum and difference functions and HF amplifier
Inventor: WAGNER GERHARD DIPL ING
IPC: G01S13/44
Filed: 1977-03-21
Abstract: A system for receiving reply signals can be depicted by a two channel secondary radar receiver where the sum and difference of the received signals is produced. The summing channel receives a signal at terminal (5) from an antenna and this signal is taken to a bandpass filter, whose middle frequency lies in the region of 1090 MHZ (normal for secondary radar systems). Next follows a HF amplifier which is connected to an attenuator, then to another high frequency amplifier to which a video detector is joined, thence to a linear video amplifier, a logarithmic video amplifier and finally to a video preparation circuit. The received signal is digitalised and processed in the normal manner. The difference signal is assimilated and treated in the same manner in a similar circuit, both circuits also incorporating threshold detectors.
Patent DE-2713998-A1 (DE)
Title: Pneumatic stabiliser to insulate instruments against vibration - has control element with several diaphragms and two chamber connected mutually via throttling device
Inventor: MULTRUS VLADIMIR DR ING
IPC: F15C3/04
Filed: 1977-03-30
Abstract: The stabiliser is used for control instruments to reduce control vibrations. The unit has a control body with control diaphragm and an additional diaphragm on top forming two chambers (8, 9). The two diaphragms are connected by a stem (2). The top chamber (9) is connected to the input control pressure (Pe) and at the same time to the chamber (8) via a throttle (10). The control body (1) has a third diaphragm (11) with the chamber created by the diaphragms vented to atmosphere. The unit housing (5) has a valve seat (13) on its underside working together with valve body (14) as an outlet valve. The valve body is connected with a second valve body by a stem working together with the valve seat (16) in the housing of the amplifier to inlet air into the chamber (17) from which the output pressure (Pa) is obtained.
Patent DE-2714183-A1 (DE)
Title: Adjustable side stop for various paper widths in typewriter etc. - is movable along guide rail and has tension cable attached to it
Inventor: HUMBS ROLF DIPL ING
IPC: B41J13/054
Filed: 1977-03-30
Abstract: Guide for different widths of recording surfaces (1) in a typewriter, has side teleprinter etc. stops (7) adjustable to the particular width. The recording surface usually paper is located between two side stops (6, 7) one (7) of which can move along a guide rail (8). A tensioning device e.g a cable passes round a guide roller (10) and has one end connected to the adjustable side stop while its other end is attached to the machine housing. A pressure roller (3) in a sliding block (11) is spring loaded (4) in one direction and carries the guide roller (10) for the cable.
Patent DE-2714780-A1 (DE)
Title: Ornamental candle holder system - consists of several stand sections forming joint insert openings or fitted with candle holding section
Inventor: STRENG NORBERT DR
IPC: F21V35/00
Filed: 1977-04-02
Abstract: An ornamental candle holder has a stand section and at least one largely vertical insert opening for a candle positioned at a radial distance from the centre axis of the stand section. The candle holder consists of at least two such stand sections (1, 2). A candle is inserted into any one joint insert opening (11) of the stand sections (1, 2) or with a candle holding section (3) used as a connecting link between the stand sections (1, 2). The stand sections are in each case fitted with several, normally two arms projecting sideways (8, 9) with the candle insert openings located at their ends.
Patent DE-2715628-A1 (DE)
Title: Antimony-free lead battery electrode - with active paste contg. antimony in large granules or plastic coated matrices for steady release
Inventor: DENNSTEDT WELF DIPL CHEM DR
IPC: H01M4/56
Filed: 1977-04-07
Abstract: Lead acid battery electrode not contg. Sb, or low in Sb, is impregnated with an active mass contg. Sb in a form enabling the Sb to be released steadily and continuously through the life of the battery. Pref. the Sb is in the form of metallic granules >100 (400-800) mu dia., distributed throughout the active mass and consisting of Pb-Sb alloy contg. 10-80 (40-60) wt.% Sb, or Sb (alloy) particles 50-150 (80-120) mu coated with a plastic matrix to form granules 0.8-3 (1-2) mm dia. The corrosion of the positive electrode is reduced due to the reduced H2 overvoltage, without the accompanying thickening due to the presence of oxides as in prior art, and without formation of dendrites to cause short circuiting. The antimony does not dissolve in the electrolyte as fast as the Sb oxide or fine grain Sb used in prior art.
Patent DE-2717275-A1 (DE)
Title: Folding prefabricated house of complex shape - comprises multiple hinged roof panels which fold to enclose hinged floor panels
Inventor: SAUER KLEMENS DIPL ING
IPC: E04B1/343
Filed: 1977-04-19
Abstract: Prefabricated folding house permits construction of more complex forms than a simple A-section building. The house, which covers a square ground area, is composed of eight roof panels (142-149) hinged together at their ridges and troughs (150). A third set of hinges, at the lower end of the troughs, connect the roof panels (142-149) with a further set of eight panels (155-162) which lie flat on the ground when the house is erected. The floor panels (155-162) are hinged together in the vertical plane of the ridges, and diagonally.
Patent DE-2717931-A1 (DE)
Title: Anode mounting for chlor:alkali cells - allows change of active electrode section without disturbing mounting bolts and protection in the cell lid
Inventor: FABIAN PETER
IPC: C25B11/02
Filed: 1977-04-22
Abstract: The cell has the following features:- (a) it has a removable lid; (b) the electrode is sealed into the lid and has an electrical current connection; (c) power is connected to the electrode surface by means of a rod or bolt pref. mounted in a protective tube and having a conical section contact piece; and (d) this latter is connected to the active part of the electrode in such a way that the active part can be readily changed when the cell cover is lifted. Esp. for use as the anode on chloralkali cells. Permits assembly and dismantling of the active electrode surface without removing the electrical connection, the mounting bolts or the protective sleeve.
Patent DE-2718487-A1 (DE)
Title: Helicopter capable of flying and hovering upside-down - has two rotor axes capable of being swivelled in relation to support pipe and in relation to each other
Inventor: GOEBEL ULRICH
IPC: B64C27/08
Filed: 1977-04-26
Abstract: The helicopter is capable of flying or hovering in its normal flying position, an upside down flying position or in any position between these two positions. The tipping over into the upside down position takes place through two rotor axes which can be swivelled in relation to a support pipe by 0 to 90 degrees and which may be swivelled in relation to each other by 30 to 90 degrees. The resulting turning momentum resulting when the two rotor axes swivel apart is balanced by a stern rotor which rotates around the helicopter's length axis. The change over into either extreme flying attitudes is carried out by the power of the thrust and the thrust direction of both rotors but independently of each other.
Patent DE-2718853-A1 (DE)
Title: Combine harvester threshing drum release - has shaft with sloping formations and boss with relief groove
Inventor: DAMMANN JOHANNES
IPC: F16D1/08
Filed: 1977-04-28
Abstract: The easy release device for freeing the thrushing drum from a shaft in a combine harvester, using sloping formations (12) on the shaft extending over a part of its length and equal in length. The boss (6) has a recess (11) in the region of its location hole for the shaft (4) so that the shaft (4), in corresponding rotary position, can be partly radially transferred into the boss (6) and recess (11). The shaft (4) in cross-section has two straight sloping formations (12) and two connecting arcs (14, 15). The arc length is slightly shorter than the half circumference of the inner hole (16) or complete shaft (4).
Patent DE-2723286-A1 (DE)
Title: Underwater toy rocket powered by buoyancy - is held in cage and released by cable operated catch to shoot upwards
Inventor: VITUS WOLFGANG
IPC: A63H23/10
Filed: 1977-05-24
Abstract: A toy which can be played within water consists of a cage made from four parallel bars (2) held together by a number of equally spaced rings (3). A model rocket (11) which is lighter than water is placed inside the cage and secured to the lower end by a catch (5). The catch can be released by a cable (8) attached to a handle (7) at the upper end of the cage. The toy is held below the surface of the water and when the catch is released, the rocket (11) shoots to the surface and up into the air. The rocket can be replaced by the model of a dolphin or of a human diver.
Patent DE-2723303-A1 (DE)
Title: Disinfectant contg. phenolic cpd. and hydroxy-carboxylic acid - for controlling microbes in paint, dyes, water etc.
Inventor: GENTH HERMANN DIPL CHEM DR
IPC: A01N37/36
Filed: 1977-05-24
Abstract: Functional liq. (I) contains 3-15 wt. pts. phenolic cpd. and 3-20 wt. pts. hydroxycarboxylic acid. Opt. it also includes 4-40 wt. pts. benzyl-dimethyl-alkylammonium chloride and/or 5-20 wt. pts. surfactant. (I) are used, for controlling microbes such as bacteria, fungi, viruses, algae and slime-forming microorganisms. They are useful for protecting paints, glues, dyes, recirculating water, textiles, etc. against microbial spoilage. Only small amts. of the liq. are needed and these cause no turbidity or discolouration. They are stable at at least -5 degrees C and since they are neutral or only slightly acid do not irritate the skin.
Patent DE-2727008-A1 (DE)
Title: Remedial or gymnastic support frame and base - has sides connected by cross member with hooks each each end for sloping body supports
Inventor: HAUENSTEIN FRIEDRICH
IPC: A47C20/00
Filed: 1977-06-15
Abstract: The rectangular base (1) with a framework mounted on it, with two side portions (2, 3) enclosing supporting surfaces (9, 15) can be used for remedial or gymnastic purposes. These side portions consist of verticals and longitudinals, forming two rectangular frames. An inverted U shaped cross member (24) can be attached one end, bridging them. The outer faces (4, 5 and 6, 7) of the verticals carry hooks (8) at different heights so that a back or leg support (9) can be mounted at a required angle. A seat (15) supported by rollers (16) can travel along the bottom longitudinals (11, 12). The supports can be upholstered.
Patent DE-2730895-A1 (DE)
Title: Personal alcohol level test kit container - has test tubes and mouthpieces secured in recesses of two strips containing blind holes which receive broken-off tube ends
Inventor: GEISS MAX
IPC: B65D43/16
Filed: 1977-07-08
Abstract: The packing container accommodates test tubes and mouthpieces to determine any alcohol content of an air sample exhaled. The tubes and mouthpieces are secured in strips mounted near two opposite edges of the container and including aligned recesses. Blind holes are formed in the recesses, or in the ridges between them. The number of the holes can be the same as that of the tubes to be accommodated, their dia. and depth being such as to accommodate the tube ends which have to be broken off.
Patent DE-2737707-A1 (DE)
Title: Exhaust afterburner system for IC engine - has conical insert between inlet and combustion chamber to reduce total length and includes heat-retaining baffle
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N3/26
Filed: 1977-08-22
Abstract: Exhaust gas and secondary air enter the afterburner through an inlet chamber and flow into the primary combustion chamber. A heat retaining baffle at the end of the primary chamber reverses the flow and the burning mixture passes through perforations in the cylindrical wall of the primary chamber into an annular secondary chamber. An insert between the inlet chamber and the primary combustion chamber has a perforated conical wall with an open end. Fine streams of gas short circuit through the perforations of this cone and the cylindrical wall where they are ignited by contact with the main flow.
Patent DE-2740057-A1 (DE)
Title: Furfuryl alcohol prodn. from furfurol - by liq. phase hydrogenation over copper chromite catalyst of controlled activity
Inventor: HAIDEGGER ERNST DIPL ING CHEM
IPC: C07D307/44
Filed: 1977-09-06
Abstract: Prodn. of furfuryl alcohol (I) comprises liq. phase hydrogenation of furfural (II) with H2 (contg. gas) at 150-210 degrees C and >100 atmos. excess over a suspended Cu chromite catalyst. The catalyst has been first deactivated and then reactivated to an optimum level of activity. Pref. the catalyst is first deactivated by using it to hydrogenate a cpd. (e.g. (II) or benzoaldehyde) which (or its reaction prods.) undergoes polymerisation or condensation reactions. It is then sepd., slurried with water at 50 degrees C, dried at 105 degrees C and ground. Provides improved selectivity for (I) and longer catalyst lifetime.
Patent DE-2745636-A1 (DE)
Title: Musical instrument with individual string tuning - uses height adjustment of bridge piece for each string
Inventor: BAUERFEIND HERBERT
IPC: G10D3/04
Filed: 1977-10-11
Abstract: The support bridge for either strings (4) has each of the latter resting on an individual bridge support (5, 6) which can be adjusted in height, e.g. via an adjustment screw positioned underneath the zither. Pref. each of the adjustment screws for the respective bridge supports has a four-cornered shaft (8) at its end, allowing it to be adjusted via a normal timing key. The height of each bridge support (5, 6) adjusts the tuning of each string (4), so that all the strings (4) can be adjusted readily independent of one another.