baber/WOPTO huggingface dataset:
Patent DE-2415281-A1 (DE)
Title: Chimney assembly component - has insulating envelope between external one and tubular core
Inventor: GRILLE HANS
IPC: E04H12/28
Filed: 1974-03-29
Abstract: The component is particularly for the construction of industrial chimneys, comprising a single or multiple smoke tube core and an external supporting envelope. An envelope (2) of insulating material is fitted between the external one (3) and the core (1). Connectors (4) between core and external envelope are preferably situated in the lower part. They can be solidly secured at least to the external envelope, and can be in the form of armouring of the insulating envelope, comprising intersecting members mounted edge on in relation to the inner surface of the external envelope. In the area of them the insulating envelope can be of material distorting under pressure.
Patent DE-2426663-A1 (DE)
Title: Atomising burner for liquid fuels - maximum combustion, soot-free flame, operating by recirculation
Inventor: HERBUTT EUGEN
IPC: F23D11/40
Filed: 1974-06-01
Abstract: An atomising burner in which a portion of the gases of combustion are freely recirculated to obtain soot-free combustion, has at its outlet, a system for producing a hollow cylindrical or slightly tapering air jet leaving the frame tube (1) at such speed and intensity that one outer (8) and at least one inner (9, 9') toroidal vortex forms outside and inside the jet respectively, the vortices rotating in opposite directions. Further means to protect the nozzle (4) from radiation consists of a partial air current branching out of the flame tube, and sweeping over the nozzle.
Patent DE-2430825-A1 (DE)
Title: Domestic hot water production and heating device - has directly heated domestic supply reservoir and internal indirectly heated throughflow type heat exchanger coil
Inventor: KUENZEL HAIKO
IPC: F24H1/48
Filed: 1974-06-27
Abstract: A hot water production device for heating and domestic hot water supply, has a container (1) which acts as reservoir for directly heated domestic hot supply water and a heat exchanger device (4) inside the container as an indirect heating unit for a circulating flow of water for heating use. The upright container (1) has a group of fire tubes (2) which are surrounded by the heat exchanger spiral tube coil (4) within the container (1). The inner walls of the container (1) and the outer surfaces of the heat exchanger spiral coil (4) are enamelled as are the outer walls of the containers (1) and fire tubes (2) impinged on by the combusted heating gases.
Patent DE-2451266-A1 (DE)
Title: Driving mechanism of dry shaver cutting head - has hole with double taper to minimise bearing stress
Inventor: STETTNER GERHARD ING GRAD
IPC: B26B19/28
Filed: 1974-10-29
Abstract: The cutting head (8) is driven by an oscillating armature motor with its armature pivoting on a shaft. The upper part of the armature carries a pin (5) which projects through the hole (6) of the carrier (7). The cutting head (8) which slides on guide rods is snapped into position on the carrier and is retained on the pin (5) by a spring clip (13). The hole (6) has a double taper with the smallest diameter at the mid-section. When the head is oscillating the greatest inertia forces occur at the extreme positions of the oscillation. In this position the pin (5) lies parallel to the tapered surface and so reduces the bearing stress.
Patent DE-2453807-A1 (DE)
Title: Closure time adjustment-button for reflex-cameras - has separating resting-positions for manual and automatic position adjustment
Inventor: FORBERICH HELMUT DR
IPC: G03B7/00
Filed: 1974-11-13
Abstract: The adjustment-button is used for reflex cameras with electronic closure time control and pre-selection arrangement for fixed closure-time. This button is provided with two separate resting-positions in axial direction, one for adjusting the "manual" position and one for adjusting the "automatic" position. The resting positions are defined by the position of a pin, mounted to the adjustment button and passed along in a control-curve. The adjustment-button, at its lower part, which projects into the camera-housing, passed into a hollow shaft, which is rotatably connected with the inner tube, while the jacket of the outer tube carries the control-curve.
Patent DE-2454486-A1 (DE)
Title: Spiral staircase round shaft-sheath-forming sockets - with thin compensating inlays between pressure-distribution plates and sockets
Inventor: SPRENG MANFRED ING GRAD
IPC: E04F11/032
Filed: 1974-11-16
Abstract: The spiral staircase incorporates sleeve sockets, which carry the steps and form a pre-stressed spindle-shaft sheath, each with an outer down turn at one end and a recess at the other end; the sockets interlock with each other in a sleeve pattern, forming inner and outer ring grooves; the inner grooves are engaged by pressure-distribution plates on the sockets, and inside the latter then are one or more tension units comprising threaded bolts and nuts above the plates. A number of thin compensating inlays (7) are fitted between each pressure-distribution plate (6) and adjoining socket (1), the external diameter or these corresponding to the internal diameter of the recesses (4).
Patent DE-2454930-A1 (DE)
Title: Digital indicating appts - has evaluating resistors switched to units stage of A-D converter and controlling amplifier
Inventor: KLINTWORTH HELMUT
IPC: H03K21/08
Filed: 1974-11-20
Abstract: The digital indicating apparatus is for condition measureing devices with an analog-digital converter having at least one counter, and especially for automatic weighting devices with electro-mechanical weighing scales with digital indications. Evaluating resistors (2) can be switched in to the the A-D converter from the counter (1). These resistors(2) collectively control an amplifier (3). Following this amplifier is a threshold value switch (6). The output signal of the amplifier can be stored at least between two measuring cycles, e.g. in a capacitor (S) switched between the amplifier and the threshold value switch. The latter (6) is bridged and/or operated by a time switch device (7). This causes a condition signal to be generated at the output (8) after a stipulated time lapse.
Patent DE-2503316-A1 (DE)
Title: Intermodulation measuring system for communications equipment - supplies incoherent noise to all but one channel using single noise source with phase shifters
Inventor: SOMMER JUERGEN PROF DR ING
IPC: G01R29/26
Filed: 1975-01-28
Abstract: The intermodulation measuring system, for communications equipment, supplies all but one of the channels with two or more incoherent noise signals simulating speech. The noise voltage in the remaining channel is then measured at the end. The incoherent noise signals are derived from the same noise generator by differential delay and phase shifting. The single noise generator is connected to its output to an array of parallel circuits whose outputs are connected one to each of the communications channels. Each parallel circuit consists of the series combination of a switch (to prevent noise being supplies to the channel under test) and a phase shifter and/or delay line.
Patent DE-2503470-A1 (DE)
Title: Granular soil-improving agents for correcting acidity - contg. Thomas slag and lime
Inventor: SANNA LUCIO
IPC: C05B5/00
Filed: 1975-01-24
Abstract: Granular Ca-contg. soil-improving agents for acid soils comprise a combination of Thomas slag and lime in any proportions. The agents can be used to correct initial over-acidity in agricultural soils and to continuously counteract Ca losses due to the action of CO2-contg. water, acidic fertilisers, leguminous plants, etc. The basic slag component protects the lime from dissolution until it comes into contact with acid, thereby maintaining balanced neutral soil conditions.
Patent DE-2507858-A1 (DE)
Title: Dazzle free headlight for motor vehicles - has reflector whose upper face is longer than lower one
Inventor: ESER ANSELM
IPC: F21V7/00
Filed: 1975-02-24
Abstract: The motor vehicle headlights are designed not to dazzle drivers in oncoming traffic. The headlight unit has a reflector whose upper face is longer than the lower face. This lower face is provided with serrated steps so that incident light is directed upwards within the reflector. The light bulb (3) produces light whose major proportion is directed by an upper reflector face (1) on the road and a direct beam from light bulb is also directed on the road. The light reflected by the serrated mirrors is thrown on the road at a shorter distance for avoiding dazzling.
Patent DE-2508922-A1 (DE)
Title: Dangling play ball or swing - is fixed by rope of adjustable length to hook in ceiling
Inventor: WOLFF FRITZ
IPC: A63B69/00
Filed: 1975-03-01
Abstract: The play ball is similar in size to a football and is fixed by means of loops (1a, 2a) to a rope (2). The length of this rope is adjustable by an adjusting ring (3) in the form of a double loop, one loop being fixed to the free end of the rope, the other forming an adjusting slide on the rope, to raise or lower the height of the ball from the floor whilst the looped rope is held in a hook (x) in the ceiling so that the ball can be hit by any part of the head, body or legs, or used as a swing.
Patent DE-2508923-A1 (DE)
Title: Control and supply circuit for fluorescent tube - has dimmer coupled via frequency dependent pulse separator, rectifier and switch to control transformer
Inventor: POHL JOACHIM
IPC: H05B41/392
Filed: 1975-03-01
Abstract: The control and supply circuit, for a flourescent tube, has the control output of the brightness setting device (dimmer) (11) connected to the lamp heating transformer via an additional circuit consisting of a frequency-dependent pulse separator (I), a rectifier (iie and a switching stage with triac (III). If a touch plate switch is used, the output is connected to the input of the additional circuit. More than one such additional circuit can be connected to the electronic setting device. The advantage of this arrangement lies in its having greater flexibility than e.g. controls with mechanical on/off switches.
Patent DE-2509023-A1 (DE)
Title: Mechanical grave digger with scoop bucket - has articulated arm moved by hydraulic cylinder to dump earth etc in container
Inventor: REICHART ANTON
IPC: E02F5/20
Filed: 1975-03-01
Abstract: The mechanical grave digger comprises a frame (16), with a removable pivot arm (38), moving about a horizontal shaft (36). A pivot lever (40) is removably hinged to the free end of the arm, and in turn carries a scoop shovel (42). The arm is removed by a hydraulic drive motor. A hydraulic cylinder (46) to actuate the shovel is positioned between lever and shovel. The motor consists of a rotary piston motor, the shaft (36) of which carries the pivot arm (38). The shovel is fastened to the centre of the lever, and may be moved in both directions. The machine frame is removably fastened to a supporting frame (10) with outrigger arms, and may be moved about a vertical shaft (18), by a hydraulic cylinder (30).
Patent DE-2513979-A1 (DE)
Title: Flexible transparent tube of extruded synthetic material - esp. for underground applications, with reinforcements and electrostatic security
Inventor: LICHTENBERG HUBERT
IPC: F16L11/127
Filed: 1975-03-29
Abstract: A flexible and esp. a transparent tube of polyethylene formed by extrusion, and having a hollow cylindrical inner mantle reinforced with a number of threads, the majority of which are arranged parallel to each other in contrary running spiral windings, and are enclosed by an outer mantle bonded to the inner mantle, has, in addition, a number of wires or metal strips, wound on the inner mantle parallel to the reinforcing threads. The wires of the one winding are in electrical contact at their crossing points with the wires of the other winding, and at the ends of the tubes, the outer mantle is cut away so that electrically conductive pipe connections bonded to the wires can be fitted. Esp. valuable in mining where explosive charges in liquid form are filled into drillings. Any possible electrostatic loading of the tube is ruled out by the conductors close to the surface. The transparency of the tube is not affected, and it is easily produced by the usual methods.
Patent DE-2519174-A1 (DE)
Title: Bolted joint for mine support frame - has sleeve and hooked bolt to lock angle against crossbeam
Inventor: SCHAEFER HEINRICH
IPC: E21D11/28
Filed: 1975-04-30
Abstract: The bolted joint for a support frame used for mining, has a horizontal longitudinal angle (4) resting on the lower flange (5) of an I-beam cross member (1) with the end of the angle joggled upwards to match the slope of the flange, and held in position by a sleeve (17) fabricated from sheet steel which entirely encloses the end of the angle iron (4). This end is then clamped up against the vertical web (2) of the beam (1) a bolt (6) with a hooked end (11) passing through a cut-out in the horizontal flange (12) of the angle, and through the sleeve (15) by means of a nut (10) and U-shaped clamping block (8) on the threaded end (7) of the bolt.
Patent DE-2520650-A1 (DE)
Title: Segmental display of digits 0 to 9 based upon 4,5 and 6 segments - curved segment elements reduce number necessary for character generation
Inventor: KMETZ ALLAN ROBERT DR ING
IPC: G04G9/10
Filed: 1975-05-09
Abstract: The formation of numerical displays based upon 4, 5 and 6 segments is an alternative to the standard seven-segment displays. In order to represent all numbers 0 to 9 with fewer than seven segments each segment is of a curved nature. A typical arrangement for six segments uses two rear vertical segments (2, 3) two 'L' shaped segments (5, 6) and two horizontal segments (1, 4). Each segment has a terminal coupled to a character generating coding circuit. The overall display effect is that of inclined characters. Alternative four and five segment display elements are provided, with some loss of character definition.
Patent DE-2520671-A1 (DE)
Title: Oil tank with two simultaneously operating suction pumps - allowing both pumps to reach full output, for combustion engine
Inventor: ROTH HELMUT ING GRAD
IPC: F01M11/06
Filed: 1975-05-09
Abstract: Oil tank for I.C. engine comprises two simultaneously operating suction pumps, one of which has a much greater output. The suction pipe of the second pump is in the form of a channel which extends into the oil tank and of which the suction opening (15) points in a direction opposite to the direction (16) of suction produced by the first pump. For example, the first pump conveys oil to the engine, and the second pump conveys oil to auxiliary apparatus using oil for cooling. The output of the first pump per min. is equal to a multiple of the content of the oil tank (11) and a multiple of the output of the second pump.
Patent DE-2523888-A1 (DE)
Title: Magnetic induction hovertrain - with orthogonal superconducting coils to induce eddy currents for minimum magnetic drag
Inventor: URANKAR LAXMIKANT DR
IPC: B60L13/04
Filed: 1975-05-30
Abstract: The magnetic induction hover train has two sets of superconducting coils (8, 9) which induced eddy currents in a non magnetic support track (10) between the coils. In order to minimise the magnetic drag without using a complicated null-flow circuit, the two sets of coils are positioned with their axes at right angles to each other. One of the sets of coils can be used as part of a linear induction drive which results in considerable weight saving. The drive for the train is by a linear synchronous motor. The system is intended for speeds in excess of 400 km/h.
Patent DE-2525816-A1 (DE)
Title: Aluminium extraction from subhalides contg. other oxides - using coolant contg. equivalent amt. of the trihalide
Inventor: OTHMER DONALD F PROF DR
IPC: C22B21/00
Filed: 1975-06-07
Abstract: In the halide method of extracting Al from ores contg. other oxides, and when in the form of a subhalide of mole wt. 107, the Al subhalide which is at a temp. of 1100-1800 degrees C is contacted with a cooling medium contg. a stoichiometric amt. of trihalide. The Al subhalide is cooled within is not >5 sec. to a temp. 1000 degrees C. The Al subhalide may be AlCl and the trihalide AlCl3, or AlBr and AlBr3, or AlF and AlF3 resp. Interfering side reactions are minimal.
Patent DE-2529865-A1 (DE)
Title: Aq. hydrofluoric acid soln. for selective etching of silica film - on semiconductor, contains ammonium carboxylate, pref. citrate or formate
Inventor: BRISKA MIRIAN DIPL ING
IPC: H01L21/311
Filed: 1975-07-04
Abstract: Aq. HF etching soln. for selective etching of SiO2 films on semiconductors contains an NH4 carboxylate (I) pref. NH4 citrate (Ia) or HCOONH4 (Ib). The soln. pref. contains 50% aq. HF and a conc. aq. (I) soln. in 1:4-20 ratio. The compsn. of the etching soln. does not change even after long storage. It has good SiO2 etching properties and does not attack the usual photoresist masks. A mixt. (pH ca. 3) of 5 vol. pts. (Ia) soln. (1kg (NH4)2 HC6H5O7 in 11 water) and 1 vol pt. 50% aq. HF soln. was used for etching a SiO2 film at room temp. The etching rate was 1000 angstroms/min. Pure Si and a photoresist based on a phenol/HCHO resin were not attacked and Si3N4 only slightly (5 angstroms/min).
Patent DE-2531301-A1 (DE)
Title: Oil burner with V belt or gear driven fan - fan mounted on jet pipe for complete turbulent mixing of ajr with oil
Inventor: NIEMEIER GEORG
IPC: F23D11/00
Filed: 1975-07-12
Abstract: Oil burner comprises a flame pipe with a tapered front end for compression of air, and a jet pipe mounted in two bearing blocks. An axial fan consists of a rotor pipe mounted on the jet pipe. The rotor pipe has a semicircular groove at its rear end for a V-belt driven by a pulley. At the front end of the rotor pipe are 8 vanes at 40 deg. to the longitudinal axis. In front of the fan are mounted 12 guide plates in the opposite direction at 40 deg. to the vanes. Air set in rotation by the fan impinges at the front end of the flame pipe on a baffle plate with two rings of guide plates rotating in the opposite direction. A sparking electrode is mounted in the bearing rocks.
Patent DE-2536536-A1 (DE)
Title: Blue disperse anthraquinone dyes - based on (alpha) tetra-substd. anthraquinones. for linear polyesters
Inventor: HIMMELE WALTER DIPL CHEM DR
IPC: C09B1/516
Filed: 1975-08-16
Abstract: The novel disperse anthraquinone dyes are of formula (I): (where Y is H, opt. substd. 1-10C alkyl or opt. substd. phenyl; and X is opt. substd. 1-19C alkyl). For dyeing synthetic fibre material, esp. linear polyester material, clear blue shades. In an example 1-amino-4-(2'-butyl)-amino-5-hydroxy-8-nitro-anthraquinone is reacted with 2-ethyl hexanoic acid chloride in o-dichlorobenzene to give 1(2'-ethylhexanoylamino)-4-(2'-butyl)-amino-5-hydroxy-8-nitro-ant- hraquinone.
Patent DE-2539649-A1 (DE)
Title: Two part target for small bore rifles - has overlapping holder with cardboard spacers for target thickness
Inventor: SPOTT GERHARD
IPC: F41J1/00
Filed: 1975-09-05
Abstract: The two part target consists of a large holding panel with central opening for the actual target. The circular part of the target is concentric with the hole. The target has large format meeting regulations for international small bore rifle competition targets. Target material is saved and targets can be operated by conventional target transporters.
Patent DE-2539741-A1 (DE)
Title: Lockable retaining element for containers - has sliding catches with additional vertical bore to guide cylindrical locking bolt
Inventor: LOOKS ARNOLD
IPC: B65D90/00
Filed: 1975-09-06
Abstract: The lockable retaining element is for containers. It has a housing, and a double T-shaped locking bolt, the pins of which project up- and downwards over the horizontal end faces of sliding catches. The housing (2) has a vertical bore to guide the cylindrical part of the locking bolt (1), and a parallel passage (4) of the same shape and arrangement as the lower catch of the bolt. For assembly, the lower catch is moved through the passage. In a horizontal plane, the passage is positioned on one side of the centre line (5) of the long catch side. The guide bore is partly cut off by the passage. The inserted locking bore is automatically locked against pulling out by its lower catch, after turning through 80 deg. about its vertical axis.
Patent DE-2545003-A1 (DE)
Title: Fire resistant steel girder cladding compsn. - contains waste prods. from steel prodn. and other processes
Inventor: HOELTER HEINZ
IPC: C04B28/00
Filed: 1975-10-08
Abstract: Steel girders in building are given fire-protection by spraying them with a compsn. comprising (a) waste prods. from ferrosilicon prodn. (e.g. flue dust emissions), (b) waste prods. from glass fibre or steel wool prodn., (c) binders (e.g. cement and/or chamotte, gypsum produced from exhaust gas desulphurisation, silicates, Al2O3 etc.) and (d) a wetting and/or flocculating agent. Components (a)-(c) are non-recyclable waste prods. which have had no previous use and are cheap, besides having high adhesion, strength, fire-resistance and low density.
Patent DE-2548019-A1 (DE)
Title: Ceramic plate-shaped heating element - has a substrate made from green ceramic refractory plate, or a fired ceramic plate
Inventor: SAGAWA NOBUKAZU
IPC: H05B3/28
Filed: 1975-10-27
Abstract: The substrate carries a heating resistance element (3) in the form of a thick film which is applied by printing using a metallic paste which is poorly conducting. There is a ceramic covering layer (1) which is produced by application of a green ceramic paste or suspension on the substrate (2) on the heating element (3) side; the substrate and the above coat (1) are fired together to form a single body, so that the heating element is hermetically sealed between thetwo; two terminals (4, 5) are provided on the substrate, connected to the heating element.
Patent DE-2548801-A1 (DE)
Title: Unsatd. carboxylic acid ester polymers and polyisocyanates - for prepn. of coatings with outstanding properties
Inventor: WILHELM HANS PROF DIPL CHEM DR
IPC: C08F8/30
Filed: 1975-10-31
Abstract: Polymer prepn. is based on polymers or copolymers of esters of unsatd. carboxylic acids and di- or poly-isocyanates. For the reaction with isocyanates, polymers are used which have an end gp. bound to the polymer chain via an S atom. contain 1-OH gp. carrying substituent and have a mean mol. wt. of is not 2000. The finished prods. are as coating for substrates e.g sheet Fe, Al, and other metals. These coatings are very saponification resistant and in the cross-linked state are very solvent, light and weather resistant and may be used for e.g. automobiles. They have a very good adhesion, with high scratch, shock, colour tone and temp. resistance. They may be applied to other materials e.g wood, synthetic polymers and fibrous materials. Finished preparations with no side-standing OH gps. are suitable for coatings of special toughness. In an example, acrylic acid Et ester, azodiisobutyric acid dinitrile, and thioglycerine were reacted in benzene for 24 hrs. This soln. was tolylene, 2,4-diisocyanate and after further processing a coating compsn. was obtd.
Patent DE-2551158-A1 (DE)
Title: Optical glass having high index of refraction - for use in composite achromatic spectacles
Inventor: WATZKE ECKHART DIPL ING
IPC: C03C3/108
Filed: 1975-11-14
Abstract: Optical glass having a refractive index of 1.61-1.63 contains (in mol. %) BaO 27-32, SiO2 45-57, B2P3 2-8, Al2O3 0-4, CaO 0-4, MgO 2-6, K2O 2-6, Na2O 0-2, PbO 0-3, ZnO 0-2, and As2P3 0-1. The Abbe number nu e is >=54; and the softening temp. Te is >640 degrees C.