baber/WOPTO huggingface dataset:
Patent DE-4003677-A1 (DE)
Title: Automatic paper loading mechanism and process for printer - automatically releases roller if paper is restricted during feed process
Inventor: NAKAJIMA TETSUYA
IPC: B41J13/20
Filed: 1990-02-07
Abstract: While the paper is printed against a roller (129 via a grip roller (40), the grip roller is released automatically via a sensor (82) from the roller during the paper feed process, so that there is no restriction on the paper feed regulated with a paper sensor (24). The grip roller can be turned between a feed position and a release position operated through a rotation unit (48). Rotation movement of the grip roller is contingent upon a motor (24) for feeding the paper, so that the driving power of this motor is transmitted via a clutch unit and clutch spindle (50). Control of the clutch unit engagement and disengagement occurs, when the printer head carriage (70) is moved to an area outside the printing area.
Patent DE-4005696-A1 (DE)
Title: Atomising metal melt to produce fine powder - using successive atomising zones using gas and liquid atomising medium in respective first and second zones
Inventor: LINDNER KARL-HEINZ DR ING
IPC: B22F9/08
Filed: 1990-02-20
Abstract: Fine metal powder is produced by atomising a metal melt in two successive atomising zones. The first zone uses a gas atomising medium at a pressure of 5-30 bar while the second zone uses a liquid medium at at least 50 bar pressure. Esp. for Fe and Cu based powders. USE/ADVANTAGE- A very fine powder of average particle size below 60 cm is produced which has good compaction properties.  The oxygen content of the powder is restricted so that no subsequent annealing treatment is required.
Patent DE-4007511-A1 (DE)
Title: Coal with clean burning properties - made by mixing with soft residues from sorting of urban refuse
Inventor: HOELTER HEINZ DIPL ING
IPC: C10L5/46
Filed: 1990-03-09
Abstract: Prodn. of environmentally friendly coal comprises mixing presorted refined refuse (the soft residual refuse remaining after sorting off the heavy fraction of refuse) with coal to . yield a low sulphur fuel. USE/ADVANTAGE - Process disposes of the soft fraction of refuse and allows coal to be burned with reduced SO2 emission.
Patent DE-4021358-A1 (DE)
Title: Measuring electric current in conductor - measuring Lorentz force exerted on magnets producing homogeneous magnetic field perpendicular to conductor
IPC: G01R15/20
Filed: 1990-07-05
Abstract: The method of measuring the amplitude of an electric current flowing in a conductor (1) involves generating an external, homogeneous magnetic field transverse, esp. perpendicular to the conductor and measuring the Lorentz force. The conductor is fixed and the Lorentz force exerted on a magnet (2, 3) against a block (6) is measured. A compensation magnetic field can be applied and varied until the Lorentz force is diminished to be unmeasurably small. The magnetic induction of the compensation field is than a measure of the current. ADVANTAGE - Simple, highly accurate and contactless measurement of current in conductor.
Patent DE-4022378-A1 (DE)
Inventor: KAJIWARA KENICHI
IPC: F04D29/42
Filed: 1990-07-13
Abstract: A sheet-metal centrifugal pump casing comprising a casing shell (1) having a suction port (3) and being formed of a steel plate by means of deep drawing using a press, and having a suction flange (10) firmly attached to the suction port of the casing shell is disclosed. The centrifugal pump casing further comprises a partition body (20) firmly attached to the inner surface of the casing shell for partitioning a space within the casing shell into a suction chamber (C) and a pressure chamber (B), and a diffuser (20b) which is integrally extended from the suction side end portion of the partition body and which tapers off toward peripheral edge of said suction port so that an axial gap (21) is formed between the end edge of the diffuser and the peripheral edge of said suction port. Since the axial gap (21) is formed between the end edge of the diffuser and the peripheral edge of the suction port, even in the case of the suction flange (10) is acted upon by an external force such as by piping, a deformation does not affect the partition body (20), thus, problems such as contact between the partition body and the impeller (5) may be completely avoided.
Patent DE-4022665-A1 (DE)
Title: Ventilator roller for cross fan blower - has defined spacing of blade stiffeners to allow increased speeds
Inventor: MAYER DOMINIKUS
IPC: F04D29/28
Filed: 1990-07-17
Abstract: The ventilator roller for a cross flow blower consists of two circular end discs between which run axially extending ventilator blades with symmetrically arranged stiffeners. - The distance between one of the stiffeners (4, 7) and the neighbouring end disc (1, 2) is half as great as the distances between the remaining stiffeners.
Patent DE-4022683-A1 (DE)
Inventor: SEBULKE JOHANNES DR ING
IPC: E01H5/06
Filed: 1990-07-17
Abstract: A snow plough has a ploughshare-suspension device of particularly simple form. The ploughshare is suspended from a supporting part (4) so as to be capable of swivelling laterally about a vertical axis; the supporting part (4) is connected to a supporting plate (6) on the vehicle side by means of a parallelogram linkage; and a hydraulic lifting cylinder (14) is supported between the supporting plate (6) and the supporting part (4). So that the suspension device can course the ploughshare to be moved in the manner of a pendulum, the invention provides that the links (11) of the parallelogram linkage each have, at least at one articulated end, a swivel bearing in the form of a ball joint (21) and that, to absorb lateral forces, there is a triangular link (18) in one of the two swivel planes of the parallelogram linkage or in a plane parallel thereto, this link having two points of articulation on the supporting plate, each of which are in the form of a pure swivel bearing (22) with horizontal swivel axis. <IMAGE>
Patent DE-4028919-A1 (DE)
Title: Hydraulic deep drawing press - has accumulator to supply pressure medium to cylinders for initial acceleration of pressure plate
Inventor: HARSCH ERICH
IPC: B21D24/14
Filed: 1990-09-12
Abstract: The mechanical or hydraulic press with a deep drawing facility, or the deep drawing stage of a multistage press, has the holder (6) for the sheet metal blank actuated by means of a pressure plate (10). The press has a ram (8) which is actuated by piston rods (11) attached to pistons which operate in cylinders (12).  An initial acceleration of the upward motion of the pressure plate (10) is achieved by means of a second group of piston-cylinder units (15). In order to impart an initial acceleration to the blank holder (6) the cylinders (18") of the piston-cylinder Wnit (1) r connected for a short time with a hydraulic accumulator (21) so that the units (15) impart an upward force to the pressure plate (10). USE - Deep drawing press.
Patent DE-4033710-A1 (DE)
Title: Combustion chamber for gas turbine - has system to spray water into combustion air to reduce nitrous oxide in exhaust gases
Inventor: KELLER JAKOB DR
IPC: F23L7/00
Filed: 1990-10-24
Abstract: The combustion chamber (1) of a gas turbine is supplied with fuel through a fuel lance (4). The combustion air (7) flows to the combustion chamber through a duct (2) which  surrounds the fuel lance (4). Water (9) is sprayed into the stream of incoming air (7) in the direction opposite to the air flow.  This water is  evaporated in the duct (2) so that a mixt. of air and water vapour flows to the combustion chamber.  The presence  of water vapour in the  combustion air reduces  the combustion temp. so that the  nitrous oxide content of the engine exhaust gases is reduced. USE/ADVANTAGE - Gas turbine.  combustion chamber with cooling of flame with water to reduce NOx formation.
Patent DE-4100909-A1 (DE)
Title: Partly-branched thermoplastic polyamide(s) - by melt-polycondensation of nylon salts, omega-aminoacid(s) or lactam(s) with pyran-di:acid monomers, esp. pyran-4-one-2,6-di:carboxylic acid
Inventor: HEGER GEORG DIPL CHEM DR
IPC: C08G69/40
Filed: 1991-01-15
Abstract: Partly branched polyamides (I) are produced from (a) 99.99-95 (pref. 99.95-98) wt.% bifunctional base monomers, i.e. omega-lactam or aminoacid and/or an equimol. mixt. of a dicarboxylic acid other than (II) and a diamine, (b) 0.01-5 (pref. 0.03-3, esp. pref. 0.05-5) wt.% approx. equimol. mixt. of diamine and pyran-dicarboxylic acid or ester of formula (II) as crosslinker and (c) 0-50 wt.% normal additives; if R1 = COR3, then R2 = H, OH, 1-8C alkyl, 3-6C cycloalkyl or aryl; if R2 = COR3, then R1 = H, 1-8C alkyl, 3-6C cycloalkyl or aryl; (with R3 = OH, Cl, 1-4C alkoxy, 3-6C cycloalkoxy or aryloxy); and X = CO, (CH2)n (with n = 0, 1, 2 or 3), CHR or CR2 (with R = aryl). Also claimed is a process for the prodn. of (I) by melt polycondensation of (a) and (b), opt. in the presence of (c). (II) is 4H-pyran-2,6(or 3,5) -dicarboxylic acid or -4-phenyl-2,6 (or 3,5)-dicarboxylic acid, pyran-4-one-2,6 (or 3,5)-dicarboxylic acid or pyran-4-one-3,5 (or 2,6)-dimethyl-2,6(or 3,5) -dicarboxylic acid, or a corresp. ester, pref. pyran-4-one- 2,6-dicarboxylic acid or an ester; the polyamide is based on epsilon-aprolactam, omega-enantholactam or omega-laurolactam, or the corresp. aminoacids, or omega-aminoundecanoic acid or 4-amino-methylbenzoic acid, or a mixt. or an adipic, dodecanoic, isophthalic or terephthalic acid and diamine e.g. diaminobutane, diaminohexane, diaminododecane, 1,4-diaminocyclohexane, 4,4'-diamino-bicyclohexylmethane or a 1,3- or 1,4-xylylenediamine. USE/ADVANTAGE - (I) are used (opt. with addn. of normal fibrous and/or particulate fillers and additives etc.) for prodn. of film, fibres, extruded prods. and mouldings; also claimed are moulded prods. obtd. from (I). Incorporation of (II) enables prodn. of high-mol.wt. branched polyamides which can be processed as thermoplastics; w.r.t. unbranched polyamides, (I) have improved flow properties (e.g. for extrusion or injection moulding), better compatibility (for polymer blends) and better adhesion to silanised glass fibre and minerals.
Patent DE-4102917-A1 (DE)
Title: Bevel gear steering mechanism - which makes it easier to carry load on bicycle
Inventor: MICKENBECKER PETER
IPC: B62K21/00
Filed: 1991-01-31
Abstract: The bicycle has its front wheel mounted on the lower end of a shaft which can be rotated about its longitudinal axis. The upper end of this shaft is fitted with a bevel gear (2). Instead of the usual handlebars, two horizontal arms extend from opposite sides of the bicycle frame. Each arm carries a shaft (3) which has a bevel gear mounted on its inner end. These bevel gears mesh with the bevel gear (2) which is mounted on the upper end of the vertical shaft. Each horizontal shaft carries a vertical lever at its outer end to enable the bicycle to be steered. USE/ADVANTAGE - Bicycle steering mechanism which makes it easier to carry a load or a seat for a child.
Patent DE-4104402-A1 (DE)
Title: Expansion joint construction with two metal bearer profiles - has gap between two frontally opposed bearer profiles filled with embedded rubber sealing strip and adhered in position
Inventor: HAMANS LEO
IPC: E01D19/06
Filed: 1991-02-14
Abstract: The expansion joint construction (1) comprises two L-shaped bearer profiles (2) of aluminium. The horizontal arms (3) of the bearer profile serve for the fixture of structural parts (5) sepd. by the joint (4). The sections (6) of the vertical arms (7) connecting to the horizontal arms (2) are thinner than the succeeding central sections. Between the vertical arms (7) a chamber (9) is formed in which is provided a strip (10) of neoprene cellular rubber. In the upper sections (11) of the vertical arms (7) are paired crossways running longitudinal ribs (12-15), of which the second (13) fits between the third and fourth (14, 15), whilst the third (14) engages between the first and second (12, 13). In the central section (8) of the vertical arm in a gap (16) a round cross-sectioned sealing strip of rubber (17) is embedded. USE/ADVANTAGE - A watertight expansion joint for incorporation between parts of a building construction.
Patent DE-4105128-A1 (DE)
Inventor: KROEDEL BERND DR
IPC: F01K23/06
Filed: 1991-02-15
Abstract: The invention concerns a process for dressing brown coal for combined gas and steam processes in heat-generating installations. The aim of the invention is to achieve substantial reduction of the CO2 emission per useful effect unit by reduced use of fossil energy carriers; the devices for drying raw brown coal are to be connected to the heat-generating installation in such a manner that the energy of the exhaust vapours is fully utilized. To this end, the drying container is operated in conjunction with a pressurized fluidized bed combustor, a gas turbine, a steam turbine, a pneumatically heated steam intermediate heater and a waste heat boiler; the drying energy for the drying container is obtained from saturated steam from the waste heat boiler of the combined process; the energy content of the de-dusted exhaust vapours under medium pressure is used to evaporate a partial flow of feed water; the gas turbine is operated with exhaust gases from the pressurized fluidized bed combustor; condensed combustion air is used for intermediate superheating of the steam, with cooling of the combustion air; and the exhaust vapour condensate formed by energetic connection is prepared and used to supply water for the circulation process.
Patent DE-4105498-A1 (DE)
Title: Baking tray or tin with temp. signal - has thermo-chromatic markings changing colour when heated
Inventor: DE BOER SIMON
IPC: G01K11/12
Filed: 1991-02-19
Abstract: The baking tin or baking tray has at least one marking (3, 4) with thermochrome material with reversible metachromatism which is set at a visible point on the tin to show when the right baking temperature is reached. The marking can be applied to a part of the outside face of the tin, or the entire outside surface of the tin can be coated with the specific thermochrome material. USE - When heated to a predetermined temperature, the material changes colour.
Patent DE-4106491-A1 (DE)
Inventor: GROTEPASS JOHANN
IPC: B21C47/24
Filed: 1991-03-01
Abstract: An installation with a coil forming and transferring system for wire and/or fine iron, in particular for heavy-weight coils of up to 5 t, having one or more feeding transport devices and in each case one coil forming and transfer station arranged after the latter, having means for conveying wire coils to an unloading station, is simplified and improved by the fact that the coil forming station (3) and the transfer station (4) form a single unit and the transfer station (4) has a comparatively long C-shaped hook (10) which can be connected to the coil forming station (3) and has a threading mandrel (11) and means (13) associated with it for threading and compacting the wire or fine iron turns or coils (20) transferred from the coil forming station (3) to the threading mandrel (11), and the hook (10) being designed to be movable by means of driving means (12) from the transfer or loading station (4) to the unloading station (2), preferably in an operating plane. 
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Patent DE-4107794-A1 (DE)
Title: Plasma mass spectrometer for trace element analysis - has atmospheric region followed by differential pump region for generation of diffusion plasma
Inventor: OKAMOTO YUKIO
IPC: G01N27/62
Filed: 1991-03-11
Abstract: A plasma mass spectrometer has a specimen feed system  (50) with a holder (51), atomiser (52), plasma generator (60), specimen sampler (70), ion extraction system (80), ion transport system (90), mass analyser system (100) and ion detection unit (110). The system plasma (10) under atmospheric pressure is excited to produce a plasma output gas, e.g. He, N2, Ar. The system differential pressure pumping region (II) is not higher than 130 Pa and is not lower than 0.13 Pa. ADVANTAGE - Low operating costs.
Patent DE-4113223-A1 (DE)
Title: Depicting peroxidase-carrying sub-structures on cells - useful in diagnosis of e.g. malignant disorders of white blood cells
Inventor: PFEIFFER WOLF-DIETHARD DR SC N
IPC: G01N33/50
Filed: 1991-04-23
Abstract: Depiction of peroxidase-carrying substructures on cells comprises incubation of histological or cytological cells with solns. of (a) 3-substd. -2-hydrazono-delta4-thiazolines or -2-hydrazono-delta4-selenazolines (or their hydro-addn. salts), phenols, or naphthols, and (b) hydrogen peroxide, to give a (naphtho)quinone-delta4-thiazolin or selenazolin-2-ylidene-hydrazone (I). In (I) R1 = alkyl, aryl or H; R2 = alkyl, aryl, alkoxycarbonyl, acyl or H; R3 = alkyl, aryl or amino; Y = S or Se; Z = O-, p-(naphtho)quinone, opt. substd. USE/ADVANTAGE - The process can be used, e.g. in: (a) measurement of peroxidase enzyme activity by determn. of the change of optical colour index by light microscopy; (b) quantitative determn. of peroxidase activity by cytophotometric measurements; (c) determn. of the cell morphology by electron microscopy tests; and (d) differentiation and localisation of peroxidases and pseudoperoxidase by using enzyme-inhibitors and activators in a sensitive colour reaction. The process is esp. useful in diagnosis of malignant disorders of white blood cells, and other disorders such as allergic reactions. The process allows good analysis of cell morphology.
Patent DE-4119310-A1 (DE)
Inventor: KUENZEL WERNER
IPC: B65D77/06
Filed: 1991-06-12
Abstract: A childproof package of simplified manufacture and handling is to be designed on the basis of a package (1) for a detergent consisting of a rigid outer box (2), preferably of paperboard or cardboard, with a removable lid (4), and a plastic film bag (5) inside it containing the detergent. This is achieved in that the plastic film has an impact penetration resistance of over 65 N and a wall thickness of 80 mu m or over, the base of the bag (5) is secured, preferably adhesively, to the base (3) of the box and, when closed, the gathered aperture end (7) of the bag (5) is surrounded by an openable and reclosable sealing strip (8) which has transverse ribs (14) on one side and an aperture (11) at the end for the introduction of the other end (12) of the sealing strip. A lever (13) is positioned next to the aperture (11) and, in one position, engages between two transverse ribs (14) to prevent the introduced end (13) of the sealing strip from being pushed back.
Patent DE-4125778-A1 (DE)
Title: Tufted carpet loop anchor - using pressure on soft yarn material at reverse side directly after singeing to force it into loop fibres
Inventor: OSTHOFF WALTER
IPC: D06C7/00
Filed: 1991-08-03
Abstract: To fix yarn loops in tufted floor coverings, directly after the yarn loop material has been flame singed at the reverse of the ground fabric the yarn material which is still soft and malleable from the heat is pressed into the remaining fibre part of the base of the yarn loop. The malleable yarn material is cooled at room temp. while pressed into place, and the surface is polished. The base of the yarn loop is pressed flat against the reverse side of the ground fabric while the malleable yarn material is pressed against it. As the hot and soft yarn material cools, the base of the loop is fixed in its flat lie. ADVANTAGE - The yarn loops are firmly anchored in place, without a sliding floor covering when laid, in a fast process which cuts the use of latex or adhesive.
Patent DE-4127536-A1 (DE)
Inventor: LUEDER THOMAS
IPC: B01D3/42
Filed: 1991-08-21
Abstract: The invention relates to a model-supported process for regulating a multicomponent rectification column with two product flow in which the model contains the interface between the controlled and correcting variables. To allow the regulating process to operate as a system of two linear single variable regulators, to the correcting variables of which is allocated only a single controlled variable, it is proposed by the invention that the one controlled variable be the concentration of a first component in the first product flow and the other be the concentration of a second component or the same component in the second product flow, that the correcting variables be either the distillate and steam flows or the distillate and heating steam flows or the return and sump product flows, that the actual concentration be determined, that this be transformed into values which depend, according to a linearised simulation model, only on one of the two selected correcting variables and that the new correcting variables be found from the differences between the actual transformed controlled variables and their set values using the model.
Patent DE-4129201-A1 (DE)
Title: Rotary piston IC engine - uses round disc with piston segment inside closely matched housing
Inventor: ZEMANN HERBERT
IPC: F02B3/06
Filed: 1991-09-03
Abstract: The rotary piston IC engine for a vehicle or a machine has a round disc (2) secured concentrically with an engine shaft (1). It has a piston (3) attached to the circumference of the disc and having the shape of a segment taken from a flat, cylindrical ring with the same thickness as the engine disc. The segment has tapered ends. The shaft, together with the piston and disc, is mounted in a housing whose inner cavity matches the thickness and OD of the ring such that the disc and piston can turn in the housing. USE/ADVANTAGE - Rotary piston engine which is smooth running, has a low fuel consumption, and can be used in a diesel version.
Patent DE-4137063-A1 (DE)
Title: Parallel rod double cylinder - has first and second tubes with pistons and connecting rods, and connected at one end to common head and closed by common cover at other end
Inventor: WEISS JOHANN
IPC: F15B15/14
Filed: 1991-11-11
Abstract: The parallel rod double cylinder is for non-rotary guide of two sections to be operated and has two connecting rods on each piston side. A first tube with a first piston (22) and a first connecting rod (23) and a second tube (24) with a second piston (25) and a second connecting rod (26) are provided. In the first tube on the counter side of the first piston a third connecting rod (33) and in the second tube on the counter side of the second piston a fourth connecting rod (36) are provided. USE/ADVANTAGE - A hydrostatic cylinder, the connecting rods of which are more distortion-free than those of known parallel rod cylinders.
Patent DE-4139872-A1 (DE)
Title: System for collecting binding and delivering steel rods - has curved member on support fitted with pick-up hook comprising forked upper part and curved lower part attached to shaft
Inventor: SCHULZE WERNER
IPC: B21B39/00
Filed: 1991-11-29
Abstract: A curved member (6) mounted on a support (2) at right angles to the steel rod layer (5) and at the side of the binding tongs (4) is fitted with a pick-up hook (8) attached to the full-length shaft (7). The pick-up face of the hook is mounted in the collecting position underneath the transport plane of the chain rack (9). The pick-up hook comprises a forked upper part and a curved lower part attached to a shaft (10). A pretensioned spring (11) is mounted between the two parts and the pretensioned position of these parts is fixed by a stop screw. ADVANTAGE - Faster production speeds.
Patent DE-4141706-A1 (DE)
Title: Sealing device - comprises highly elastic and temp.-resistant material with smooth surface resistant to mechanical wear
Inventor: EVERS HERBERT
IPC: B29C65/18
Filed: 1991-12-18
Abstract: In the material, heat resistances and temp. sensors are fitted which guarantee an even temp. The material is elastic or similar to plastic and temp.-resistant, straight or round, which can also be square or rectangular in shape, and heatable materials can be introduced into it for their surface to be heated to the extent that they can takeover heat and thin foils for unreleasable joining. USE/ADVANTAGE - A sealing device comprising a highly elastic and temp.-resistant material.