baber/WOPTO huggingface dataset:
Patent DE-2916133-A1 (DE)
Title: Injection moulding machine - has plasticising and injection cylinders interconnected by filling and injection ducts fitted with three-way valves
Inventor: DECKER ERICH
IPC: B29C45/68
Filed: 1979-04-20
Abstract: Injection moulding machine has a worm screw feeder plasticiser interconnected with an injection cylinder by a filling duct which communicaters also with the injection duct by means of a three-way valve. In one position of the valve the plasticiser cylinder communicates with the injection cylinder to force its piston back due to discharging and in its other position, the cylinder communicates with the injection nozzle. Setting of impurities is prevented or danger reduced and provision of cleaning of machine is made.
Patent DE-2916860-A1 (DE)
Title: Slurry filter with classifying action - passing slurry first through cyclone to lay coarse bed before fine material is added
Inventor: MUELLER GUENTER DIPL ING
IPC: B01D33/00
Filed: 1979-04-26
Abstract: Filtration process is for slurries with different particle sizes and can include washing of the cake. The different particles are classified in a cyclone before they are introduced onto the filter. The coarse particles are laid as a bed first before the finer material is added. Sedimentation accelerators can be added to the fine component before it is fed to the filter bed. Used for filtering coal slurries or separating gold from crude ore. Gives a cake of high permeability for liquid, air and stream thus allowing good dewatering and cake washing.
Patent DE-2919632-A1 (DE)
Title: Printing needle moving armature drive damping system - has aluminium alloy cap over armature, containing plastics buffer pad
Inventor: FLECHTNER VOLKER DIPL ING
IPC: B41J2/27
Filed: 1979-05-16
Abstract: The moving armature drive unit for the needle of a needle printer includes a damping system to ensure a constant pressure on the needle at high operating frequencies. The housing for the coil with the armature in its middle is fitted with a cap (13) inside which is a pad (11) made of a special rubber, located under the closed top. This pad has a hole in the centre, into which fits the stem of a headed piece (12) which acts as a buffer for the headed end of the armature. This buffer is made of a plastics material with a good impact resistance and the cap is made of an aluminium alloy with a good heat conductivity. The cap has cooling ribs (15) with longitudinal slots (9) and has internal screw threads (19) at the bottom.
Patent DE-2924639-A1 (DE)
Title: Mixing reinforcing fibres with cement paste - via two vertical stacks of vibrating chutes ensuring thorough mixing
IPC: B28C5/04
Filed: 1979-06-19
Abstract: The fibres and the cement paste are fed alternately into the top of a frame fitted on each side with a vertical row of hinges for two vertical stacks of sloping plates or chutes. At each side of the frame is a rod which is free to move vertically and rest on a spring; a vibrator vibrates the two rods vertically. The two rods are fixed by brackets to the free ends of the sloping chutes so the two materials are vibrated while they flow down the chutes. Homogeneous mixing of the materials is thus achieved before the mixt. enters a bottom hopper. Fibres are pref. asbestos; glass resistant to alkali; steel; carbon; polpropylene; nylon; or cellulose fibres; and the method ensures efficient use of the reinforcing fibres due to homogeneous mixing with paste.
Patent DE-2925334-A1 (DE)
Title: Mono:azo dyes for polyamide textiles - contg. benzothiazole and substd. aniline fragments
Inventor: HUGHES NIGEL
IPC: C09B29/00
Filed: 1979-06-22
Abstract: Water-soluble monoazo dyes which, in the free acid form, are of formula (I) are new: (where R1 and R2 are opt. substd. alkyl aralkyl, aryl or cycloalkyl; R3 is H, halogen, alkyl or alkoxy; R R4 is H, halogen, alkyl, alkoxy, acylamino or SO3H; R5 is H or SO3H; R6 is H, halogen, alkyl, alkoxy, NO2, CN, SCN, SO2R7, COOR7 or SO2NR8R9; R7 is alkyl; R8 and R9 are H or alkyl; with the proviso that (I) contains 2 gps. selected from SO3H and OSO3H). (I) are useful for dyeing polyamide textile materials (wool, silk, or esp. nylon), giving red shades with good fastness to wet treatments and light. They are esp. suitable for differential dyeing of nylon.
Patent DE-2928728-A1 (DE)
Title: Pit prop cap support screen - has cantilevered bar hinged via guide rods to pistons and cylinders which are on each side of support plate
Inventor: WAKE MALCOLM
IPC: E21D23/04
Filed: 1979-07-17
Abstract: For preventing large pieces of coal from falling from the face onto the conveyor, in thick seams in mines, the support prop has a cap with a support screen. A piston-and-cylinder assembly (22) is mounted on each side of the screen's support plate (24), with one end hinged to this plate, and the other end hinged to a guiderod, via a parallel rotary axis. The two guide-rods are hinged to a cantilevered support bar (10) on the cap (2), also via parallel rotary axes (17, 19). There is a device for advancing and withdrawing this bar - pref. a double-action pressure block. This means that piston-and-cylinder assemblies with relatively short thrust can be used, saving cost and space.
Patent DE-2935391-A1 (DE)
Title: Checking dental occlusion by biting on transparent polymer strip - which is examined in polarised light for stress birefringence
Inventor: ARCAN MIROEA
IPC: A61C19/05
Filed: 1979-09-01
Abstract: A strip of incompletely elastic material, i.e. elastoplastic material is gripped between the teeth to be examined so that indentations are made in the strip. The strip material has to be optically isotropic and offer a birefringence to mechanical stress. The strip pref. has a uniform thickness of between 0.1 and 0.3 mm. and can be made of a polymer such as nylon or polythene. Teeth grip on the strip is maintained long enough to produce semi-permanent indentations. Pref. for between 10-60 seconds. The strip is then released and the indentations examined under polarised light. To simulate biting on food, a separator of deformable or elastic material, pref. between 0.5-3.0 mm thick, can be sandwiched between two strips as previously described.
Patent DE-2937580-A1 (DE)
Title: Light guide coupler with low loss output coupling - uses graded index optical fibres for main guides and core-sheath optical fibres for auxiliary guides
Inventor: UNRAU UDO DR ING
IPC: G02B6/28
Filed: 1979-09-18
Abstract: The coupler with low loss output coupling is intended for use between a main line, formed by a light guide, and at least one auxiliary line, formed by another light guide. In the region of coupling section the dias. of the light guides are reduced, and the light guides are firmly connected together. For the main light guide are user optical fibres (1) of gradient type, while for the auxiliary light guide fibres (3,5) of the core and sheath type are used. The numerical apertures of both types are approx. identical. Pref. the core (4) cross section of the auxiliary light guide fibres is greater than the core (2) of the main light guide fibres. The two types of fibres may be welded together. The ratio of cross-sections core-total may be greater with the core dual sheath type fibres. The design greatly facilitates transmission without output coupling losses.
Patent DE-2937600-A1 (DE)
Title: Bobbin winder - has reciprocating yarn guide slide and structured transmission to give accurate yarn feed
Inventor: SCHIMINSKI WERNER ING GRAD
IPC: B65H54/04
Filed: 1979-09-18
Abstract: A slide (13) moving on a straight path is used as the reciprocating yarn guide, and at least one gear wheel rotating freely on a carrier provides the transmission between the reverse threaded shaft (10) of the reciprocating unit and the bobbin spindle (3). The gear wheel carrier follows a circular path in the normal plane of the bobbin spindle (3) and maintains a constant axial distance between its gear wheel and the shaft (10). The mechanism ensures that the yarn is fed accurately during bobbin winding, and that its path is not allowed to drift.
Patent DE-3002885-A1 (DE)
Title: Wine fermentation vessel - with electrically heated and thermostated insulated box
Inventor: STEINMANN JUERGEN
IPC: C12G1/036
Filed: 1980-01-28
Abstract: A device for the fermentation of fruit juice to produce home-made wine consists of an insulated box, made of wood, plastic or metal which encloses the balloon flask with the juice. A thermostat controls the electrical heater to maintain a constant temp. of 18-25 deg.C for 2 to 4 months.S This makes the wine-making independent of the temperature fluctuations of the store room and eliminates possible failures.
Patent DE-3003949-A1 (DE)
Title: Mfr. of integrated circuits - applying temp. voltage test before conductive layer structuring to reduce costs
Inventor: HOFFMANN KURT DR
IPC: H01L21/78
Filed: 1980-02-04
Abstract: Intergrated circuits on the basis of monocrystalline silicon, e.g. consisting of MOSFET's, have to undergo a test at a raised temp. (125 deg.C, 14 V for 40 h) to sort out sound and defective units. Instead of at the end of the manufacturing cycle, it is suggested to carry out this test before the conductive layer is structural, using a conductive layer of doped polycrystalline silicon or metal. The result is a considerable cost reduction because the housings used for the scrapped units cannot be re-used.
Patent DE-3004224-A1 (DE)
Title: Fireplace with waste-heat recovery - comprises heat exchanger with passages for fluid medium round flue
Inventor: ZIEGLER HORST
IPC: F28D21/00
Filed: 1980-02-06
Abstract: The fireplace makes at least partial use of the waste heat in the combustion gases from the fire. It comprises a heat exchanger, with passages for a heat-transfer medium running round a flue. Heat exchange takes place indirectly between the combustion gases and the medium, via the passage walls and those of the flue. The passages can be formed by chambers enclosing the flue concentrically, or alternatively by a pipe wound round it in a spiral, and accommodated in a flue lining of firebrick or other material of fire-resistant and heat-conductive characteristics.
Patent DE-3004378-A1 (DE)
Title: Device for feeding fluid - has suction pipe within feed bottle communicating with feed tube leading to nipple assembly external of bottle
Inventor: KWAN WEY YEONG
IPC: A61J11/00
Filed: 1980-02-06
Abstract: The feeding device comprises a feed bottle (1) with a connector (2) which connects a suction pipe (23) within the bottle to a flexible feeding tube (22) extending externally of the bottle to a nipple assembly (3). The nipple assembly comprises a nipple retained in, and extending from, a retaining ring, a valve disc with an axially bored plug forming a ball valve between the feeding tube and the nipple to which the retaining ring is secured and with which the valve disc with plug is sealingly secured. The valve disc of the nipple assembly can then have a number of through apertures extending through the axial bore of the plug.
Patent DE-3010932-A1 (DE)
Title: Underfloor heating system - has elongated heat conductor linking duct to heating element laid in recess
Inventor: GEISEL GERHARD ING GRAD
IPC: F24D3/14
Filed: 1980-03-21
Abstract: One or more ducts carrying heat are laid in a floor, to provide a heating system. The duct (2) is connected with an elongated heat- conducting element (3), into a floor heating element (1). This is laid in a cutout (4) in the floor (5), and directly covered by a floor covering (8). The conducting element pref. extends over the whole length of the duct; and over a multiple of the duct's max. transverse dimension in a transverse direction across the duct. The duct can be a metal pipe, and the conducting element a piece of sheet metal soldered (10) or welded to it.
Patent DE-3015258-A1 (DE)
Title: Operating cylinder piston position transducer - has transducer ring forming standard sealing or slider ring
Inventor: STOLL KURT DIPL ING
IPC: F15B15/28
Filed: 1980-04-21
Abstract: The inductive piston position transducer for an operating cylinder has a transducer ring on the non-magnetisable piston and a transducer on the non-magnetisable cylinder responding to the magnetic field between it and the transducer ring. It is an economically produced arrangement making extensive use of standard cylinder components. The transducer ring (30) has an annular slot (32) in its external surface contg. a sliding guide ring (36) or piston (12) sealing ring sliding on the cylinder inner wall (28). The transducer ring is made of sintered oxide ceramic material and the slider ring of low friction synthetic material. The transducer ring may be divided and its segment stuck into the piston. The same cylinder may be used with and without an inductive transducer by using different rings.
Patent DE-3015288-A1 (DE)
Title: Combined push-button switch and indicator lamp - has two section cover for indicator strip over chamber adjacent to lamp chamber
Inventor: FEISTL WALTER
IPC: H01H9/18
Filed: 1980-04-21
Abstract: The push button switch with an indicator lamp situated underneath is supported by a rectangular housing including a second chamber adjacent to the lamp chamber, fitted with a removable cover (10). A plate (5) which fits over the top of this cover carries a thin strip (6) with indicator markings on it. The cover is L-shaped, with a vertical end (12) which fits into a recess down one end of the housing. The top surface of the cover has a flat central part (15) with a sloping part (16,17) projecting from it on each side. The central part has a rear slot (20) and front slot (18) for insertion of corresponding lugs (25,22) on the plate. The sloping parts have portions (11) projecting from the rear which lock into recesses in the housing. The vertical end (12) also has a locking lug (24) across the bottom.
Patent DE-3017349-A1 (DE)
Title: Precise derivation of electrical signal function values - by using reference signal equalisation controller and inverse function control element
Inventor: KOLLER ROMAN
IPC: G06G7/18
Filed: 1980-05-06
Abstract: The deviation of an instantaneous signal value from a reference value and/or its time of occurrence is measured in a closed control loop. The deviation value drives a control element so as to null the deviation by regulating the instantaneous signal value and or the instantaneous reference value. The control characteristic is designed to yield the dervied values when equalisation is achieved. The control element's transfer function is the inverse of or is complementary to the derived function.
Patent DE-3018714-A1 (DE)
Inventor: KLAHR ERHARD DIPL CHEM DR
IPC: C11D3/20
Filed: 1980-05-16
Abstract: Color-stabilized nonionic surfactants which contain chemically bonded polyalkylene oxide groups having terminal hydroxyl groups, and in which are dissolved C4-C8-aliphatic dicarboxylic acids, their C1-C4-alkyl esters or mixtures thereof, as color stabilizers.
Patent DE-3021337-A1 (DE)
Inventor: KOCH HERMANN
IPC: F25D23/10
Filed: 1980-06-06
Abstract: The ice-making appliance comprises a base frame (1) which is designed for fitting in prefabricated form in a bar (21) and in which is guided a chest (8) having a bottom-side sectioned frame (14) for frontal insertion. The sectioned frame (14) at the same time guides a base plate (15) so that this can be frontally inserted into a machine compartment (11). The base plate (15) supports the refrigeration unit (12) with a baffle (16) which subdivides the machine compartment (11) on its front side into an inflow duct (25) and an outflow duct (26) for the cooling air. In this arrangement, frontal insertion of both the chest (8) and of the refrigeration unit (12) helps to make the appliance easy to service. Furthermore, owing to the front-side inlet and outlet of the cooling air, additional cooling air exhaust means can be dispensed with. <IMAGE>
Patent DE-3021911-A1 (DE)
Title: Infusion bag - with thin-wall tubes for additives inside main plastic bag
Inventor: LANG VOLKER O PROF DR MED
IPC: A61J1/05
Filed: 1980-06-11
Abstract: A universal infusion bag for use in parenteral or intravenous feeding of infusion therapy is made of a flexible transparent plastic material. Integral with the walls of the bag, several internal tubular chambers of varying size are produced with a much thinner wall thickness. After they have been filled (the bag with a basic solution and the chamber with fluids which are individually adapted to the patient) they are closed by a common welded seam. If a patient requires an additive to the basic solution, the chamber concerned is burst open by extra pressure or, if provided, by a built-in perforator. This a low-cost soln. to the problem of patients requiring quickly an additive.
Patent DE-3022092-A1 (DE)
Title: Development system for programmable digital systems - uses individual digital modules interconnected by side mounted plug and socket arrangements
Inventor: LANG ARMIN ING GRAD
IPC: G09B23/18
Filed: 1980-06-12
Abstract: A development system for digital system is based upon individual function modules that are readily plugged together using plugs and sockets located on the side faces. A typical module (1) is designed to provide the processing of an eight bit binary number followed by the display of seven segment numbers. Information is entered over 8 side pins (4) and may transmitted to other modules over a group of eight sockets (5). Two seven segment LED or LED displays (2) on the surface of the module. Built in circuitry (6) allows the two four bit codings to be converted into 7 segment signals. A range of modules e.g. memories, registers, etc., may be interconnected to form a system.
Patent DE-3031476-A1 (DE)
Title: Effluent aeration system - recycles purified side:stream mixed with compressed air into aerator of activated sludge tank
Inventor: WENZEL NORBERT
IPC: C02F3/12
Filed: 1980-08-21
Abstract: In an aeration system for effluents, esp. in an activated biological sewage sludge treatment tank, the injected medium is a side stream of purified effluent, mixed with air as the disperse phase in such a ratio that the air saturation limit is reached in the effluent. Both components are processed under pressure to form a colloidal disperse system. This mixture is then introduced in the aerator under pressure. This utilises the max. percentage of the injected oxygen in the air and maintains an adequate kinetic energy for the biological purification with the best possible economy of energy.
Patent DE-3045936-A1 (DE)
Title: Frame for solar collector - has extruded plastics frame with insulated base, reinforced centre gap and light absorbing upper layer
Inventor: ECKERT REINHARD ING GRAD
IPC: F24S10/75
Filed: 1980-12-03
Abstract: The solar heat collection system comprises an extruded plastics skeleton (1.1) forming the absorber. There is heat-insulating foam (1.3) on the underside, and there is also a reinforced central rib (1.2), by which it is mounted on the roof. Its tops surface is formed by a radiation-absorbent layer (1.8), filled with material (1.8) of good heat conductivity. The absorber can be formed by a continuous extrusion process, and the pipes in it can be narrowed at the ends to aid sealing.
Patent DE-3046432-A1 (DE)
Title: Double band press with heaters - has cooling air ducts leading to pressure chambers behind bands to prevent overheating when stopped
Inventor: FIEDLER EWALD
IPC: B30B5/06
Filed: 1980-12-10
Abstract: A double band press has two endless metal bands between which the material is pressed in continuous movement. Behind the metal bands are pressure plates contg. pressure chambers where the pressure is applied to the bands. The plates also contain air ducts which have inlet and outlet openings adjacent to the metal bands. Pref. the air ducts are formed in the side walls of the pressure chamber, esp. by channels covered with plates attached by bolts and contg. the inlet and outlet openings. When the press is stopped, although the radiant heaters or other heaters are shut off, there is nevertheless a tendency to overheating due to stored heat and continuing radiation. By the arrangement shown, cooling air can be blown through the ducts onto the rear of the metal bands to prevent this overheating.
Patent DE-3048516-A1 (DE)
Title: Rail vehicle primary spring system - has combined elastic and gas springs connected to secondary gas spring chambers
Inventor: SCHINDEHUETTE MANFRED DIPL ING
IPC: B61F5/30
Filed: 1980-12-22
Abstract: The system is for a rail vehicle with gas springs, forming a secondary system. On each axle bearing are one or more springs (1-8) consisting of a combined elastic and gas spring, and the pressure chambers of these springs are connected to those of the secondary springs (9,10). The sum of the effective areas of the primary springs can be equal to that of the secondary ones, and the elastic portions of the primary springs can be arranged to support the weight of the bogie frame and the components fixed to it.
Patent DE-3103286-A1 (DE)
Title: Electrical hand-held machine tool for screwing, drilling and possibly hammer-drilling
Inventor: SEIFERT JOSEF ING GRAD
IPC: B23B45/02
Filed: 1981-01-31
Abstract: In the case of an electrical hand-held machine tool for screwing, drilling and possibly hammer-drilling, according to the invention, a circuit for controlling the rotation speed of the drive spindle of the machine to a selectable value, an electronic circuit for limiting the torque of the drive spindle to a selectable value, and a rotation-direction reversing switch are provided. The torque is limited by switching off the drive motor on reaching the selected maximum torque. The circuits for rotation speed control and for torque limiting are preferably constructed on a common electronic module which is inserted into the machine housing. The rotation speed and torque are in each case selected by means of a potentiometer, the potentiometer being a continuously variable rotary potentiometer or a sliding potentiometer or stepped fixed resistors which can be picked off by push-button switches or sensor-key switches.
Patent DE-3115197-A1 (DE)
Title: Low-fuming, free-flowing fluxes for sherardising
Inventor: APPL MAX DIPL CHEM DR
IPC: C23C2/30
Filed: 1981-04-15
Abstract: Low-fuming, free-flowing fluxes for sherardising contain from 50 to 90% by weight of alkali metal chlorides and from 10 to 50% by weight of ammonium chloride. In addition they contain, based on the ammonium chloride and alkali metal chloride content, from 0.1 to 1% by weight of magnesium oxide and so much zinc chloride, that the weight ratio of magnesium oxide to zinc chloride is from 1 : 2 to 1 : 10.
Patent DE-3117205-A1 (DE)
Title: Optoelectronic cooking panel controller
Inventor: HAAG GUENTER DIPL PHYS DR
IPC: F24C15/10
Filed: 1981-04-30
Abstract: The invention relates to an optoelectronic cooking panel controller, the surface of the cooking panel to be heated in each case being determined on the basis of the pot size by optoelectronic sensors. An optoelectronic unit consists of a light transmitter which produces a photon field, a light receiver which records changes in this photon field, a signal conditioner and an evaluation unit. The sensors can be arranged in the hot region and cold region and can be used for switching any desired functions.
Patent DE-3124459-A1 (DE)
Title: Diaphragm capsule for thermally controlled condensation-drainage means
Inventor: HASSE ERICH
IPC: F16T1/10
Filed: 1981-06-22
Abstract: Published without abstract.
Patent DE-3124493-A1 (DE)
Title: Fuel metering system for an internal combustion engine
Inventor: DREWS ULRICH DIPL ING
IPC: F02D41/34
Filed: 1981-06-23
Abstract: A fuel metering system for an internal combustion engine is proposed, which has a throttle air flow sensor without bypass duct and in which the characteristic curve of the air flow sensor indicates a rate of air flow increased by a constant value. The correction thereby necessitated is achieved in that a pulse varying only as a function of the engine speed is subtracted from the output signal of a timer element which processes engine speed and air flow signal. In this way a reliably functioning fuel metering system is achieved, even at very low engine speeds in the idling range with the very low rates of air flow then prevailing in the air intake pipe. <IMAGE>