baber/WOPTO huggingface dataset:
Patent DE-2349650-A1 (DE)
Title: Front-loading drum washing machine - with programme controlled return valve
Inventor: HEISSMEIER WALTER DIPL PHYS
IPC: D06F39/08
Filed: 1973-10-03
Abstract: Front-loading drum washing machine for washing and drying has a return valve with a branch pipe arranged in the discharge pipe behind the pump, the valve being programme controlled. This arrangement increases the vol. of water passing through the drum without increasing water supply to the machine and without shortening rinsing times.
Patent DE-2362023-A1 (DE)
Title: Machine for cutting brittle materials - has drive motor with spool of new wire fixed to its shaft
Inventor: MECH HAROLD WALTER
IPC: B28D5/04
Filed: 1973-12-13
Abstract: The machine for cutting brittle materials such as piezoelectric or semiconductor devices includes a drive motor having a spool of new wire fixed to its shaft. The wire is taken-up by another drive motor and a spool, the motors maintaining a constant movement of the wire between them. The wire is engaged by guide idler pulleys and a fixed multi groove pulley and extends to a web with three parallel pulleys, so that the wire forms a generally triangular web with a flat side of the triangle defining a cutting area. The material to be cut is mounted above the cutting area on a block dovetailed to slide vertically on a base, with a piece of the material on a platform fixed to the lower end of the block.
Patent DE-2362567-A1 (DE)
Title: Temperature stabilised electronic cct. - consists of active and passive components with compensating temperature coefficients
Inventor: SCHUERMANN WALTER DIPL ING
IPC: H05K1/03
Filed: 1973-12-17
Abstract: The components are mounted on an insulating board and interconnected by conducting traces. In addition to the circuit proper one or several temp.-sensitive resistors are provided on the board surface, which thermally affect the circuit components. The insulating board consists of hardboard or plastic impregnated with synthetic resin, and the temp.-sensitive resistors are separate units. Alternatively the insulating board consists of glass or ceramic, the active components are discrete units and passive components are produced by the thick or thin film method. The temp.-sensitive resistors are discrete units, or are made by the film method.
Patent DE-2406534-A1 (DE)
Title: Dyeing or printing of modified polyolefin fibres - with alkali treatment before or after dye applicn
Inventor: FAGBULE MOSES OLUWOLE DIPL CHE
IPC: D06P5/02
Filed: 1974-02-12
Abstract: Dyeing or printing of poly-alpha-olefin and other non-nucleophilic fibres modified by sulphochlorination or phosgenation, with basic or dispersion dyes in which the modified fibres are treated with alkali before or after applicn. of dye. Poor light fastness of the dye caused by gradual evolution of chlorine from the fibre is prevented. The alkali (e.g. NaOH, KOH, LiOH, Na2CO3, NH4OH or triethanolamine is used at 1-50 (5-20) wt. % concn. Treatment is in a bath at 0-100 degrees (10-98 degrees)C, pref. immediately after sulphochlorination or phosgenation. The fibres are then rinsed in warm and cold water, and dried at 40-90 degrees C.
Patent DE-2406828-A1 (DE)
Title: Welding aluminium alloys to copper - by coating copper joint surface with silver and using friction welding
Inventor: MOLL HELMUT
IPC: B23K35/00
Filed: 1974-02-13
Abstract: In welding Al alloys to Cu the surface of the Cu which will form a joint surface is coated with an intermediate layer of silver (alloy) and the joint is then made by friction welding. The intermediate layer may consist of an Ag solder applied by melting or obtd. by electrolytic deposition and in either case the layer is pref. >=50 mu thick to prevent it being rubbed off during the friction welding process. The mechanical strength of the welded joint is similar to the strength of the Al alloy being welded; Al alloys and Ag doe not form the brittle intermetallic cpds. or mixed crystals that occur between Cu and Al. Despite the relatively high degree of deformation which occurs during friction welding, the silver layer remains intact, and microscopic examination of a polished longitudinal section through the weld shows no bonding defects between the Cu and the Ag and only very slight defects between the Ag and the Al.
Patent DE-2409838-A1 (DE)
Title: Five-ply plastics film laminate - has very thin polyvinylidene chloride core lamina and PVC or poly-styrene outer laminae bonded via subbing agent layers
Inventor: FREUDENBERGER FRANZ DIPL ING
IPC: C08J7/043
Filed: 1974-03-01
Abstract: 5-Ply plastics film laminate, comprising a PVDC core lamina with thermoplastics film bonded to both surfaces, using adhesion-promoting layers, is prepd. by applying adhesion adjuvant dispersion onto a thermoplastics film and drying; applying an aq. dispersion or vinylidene chloride polymer onto the layer of adhesion adjuvant and drying; applying a further layer of adhesion adjuvant and drying; and laminating the composite prod, on that side coated with adhesion adjuvant, with a thermoplastics foil. The PVdC layer can be made very thin eg, 0.004-0.012 mm. Used for packaging of hygroscopic materials; and food packaging.
Patent DE-2410345-A1 (DE)
Title: Vibrating conveyor for granular mineral gas treatment - is fitted with refractory wear-resistant inner wall
Inventor: SINDELAR GUENTER DR
IPC: B65G27/04
Filed: 1974-03-05
Abstract: At least the side walls of the conveyor channel consist of an outer steel casing, plus an inner wall of highly refractory, wear-resistant material, the space between the casing and the inner wall being filled with an insulating material. The inner wall pref. consists of individual segments connected by bracing struts to the casing using esp. one strut per segment the latter being arranged in a clinker-built manner, i.e. the tail end of one segment overlapping the front edge of the next in the direction of material flow. The struts are pref. slotted to compensate for thermal expansion. A stable inner wall is obtd. and the space between this wall and the outer casing is easily filled with a rammed or pre-fabricated insulating material.
Patent DE-2412143-A1 (DE)
Title: Portable universal power tool - has housing with accumulators in series or parallel connectable to portable transformer accepting tool housing
Inventor: KRONE HEINZ
IPC: B23K3/047
Filed: 1974-03-13
Abstract: The portable universal power tool has a variable speed drive for driving various tools or a heat source for a soldering iron bit etc. It contains several parallel or series-coupled accumulator batteries connectable to a portable transformer which can accept also the power tool housing. The electric motor is linked to a planetary gear train consisting of individual planetary gears insertable onto the housing. The housing is in the form of a tubular hand grip, with the motor located between the batteries and the gears. The motor and gear train can be disconnected from the battery and part of the housing and replaced by a soldering iron attachment. Preferably the transformer has a recess with contacts for charging the batteries when the tool is not in use.
Patent DE-2412826-A1 (DE)
Title: Slide projector with flat annular magazine - with interchangeable unit and prismatic guide tracks for slides
Inventor: WINKLER ALFRED
IPC: G03B23/06
Filed: 1974-03-16
Abstract: The slide projector comprises a guide track which is extended in the form of an additional guide in the region in which the slide protrudes from the magazine, on the lid of the magazine chamber. The additional guide consists of a member extending parallel to the top edge of the slide, and a prismatic member adjoining the corner of the slide. The magazine has a hand grip to assist handling when changing.
Patent DE-2415965-A1 (DE)
Title: Pedal propeller unit for swimmer - has main buoyant body with drive, stabiliser and auxiliary body at rear
Inventor: UMGEHER KARL
IPC: A63B35/10
Filed: 1974-04-02
Abstract: Swimming appts. for advance in the water by leg work that drives a propeller via a pedal crank drive has a flat, elongate main buoyant body as a support surface for the swimmer's torso, with holders. At the rearward part of the buoyant body is fitted the pedal crank drive, provided with an additional buoyant body and a stabiliser. Preferably the plane of the support surface of the main body is pivotable upward w.r.t. the plane of the propeller shaft through an angle of 10-20 deg. in the forward direction. Relatively rapid progress in the water is obtained with minimal leg work.
Patent DE-2416228-A1 (DE)
Title: Telephone exchange selection relay - has longitudinally effective actuating pin having a rotary motion and offset switching strips
Inventor: LENZ KURT
IPC: H01H50/58
Filed: 1974-04-03
Abstract: The relay has a contact actuating electromagnet and an actuating pin, acting longitudinally and affording also rotary motion. The pin is provided with helical switching strips, mutually offset by 30 deg.. Each of the strips, according to its angular position during the pin rotation, actuates a given contact spring set of an array stacked on a shaft, the sets being provided with twelve selection outputs and a multi-core input. This pin actuation takes place after attraction of the magnet armature. On the armature release the actuating pin rotates through 30 deg. to be ready for the next actuating step. Preferably this rotary resetting of the actuating pin into its ready position is effected by a spring wire mounted on both sides of the actuating pin, radially to its longitudinal axis.
Patent DE-2426558-A1 (DE)
Title: Continuous thermoforming of uniform plastics sheet - by manipulating extruded sheet through inclined mould
Inventor: SVENDSEN JOHAN PER GREIJNER
IPC: B29C48/10
Filed: 1974-05-31
Abstract: Freshly extruded thermoplastic sheet is manipulated by leading it downwards at an angle of 30-60 degrees to pass through a thermoforming tool with an inclined daylight. The edges of the sheet are gripped by finger grips which can allow the sheet to sag slightly as it moves towards the daylight and then draw it taut for mould closure. For mfr. of hollow articles from matls. with a relatively low strength of stiffness at near extrusion temps., e.g. polyolefins. By leading the matl. through part of an approximately catenary path less thickness which variation is induced by matl. flow or droop than in processes which lead the hot sheet across a horizontal gap or which cause it to support its own wt. during vertical motion.
Patent DE-2438800-A1 (DE)
Title: Flame-hardening the bore of large pipe-elbows - where trolley fitted with burners and water-sprays is drawn through pipe
Inventor: SILLER VINZENZ
IPC: B23K7/06
Filed: 1974-08-13
Abstract: The parent patents describe a process for surface-hardening by the local heating of the inner layers of pipe bends or elbows, using gas-oxygen burners to attain the hardening temp. with or without altering the properties of the core. In the present invention, the flame heated zone travels upwards from the bottom end of the elbow to the upper end of the pipe. The pref. device uses a cable to draw a trolley, fitted with burners and a cooling unit, up through the pipe, the trolley being mounted on top of a telescopic structure which is spring-loaded so it returns to the initial, lower position at the end of the treatment. Used for flame-hardening the bores of large, heavy, pipe-elbows.
Patent DE-2440671-A1 (DE)
Title: Hazard warning flasher for vehicle - with portable power unit and clip-on flasher lamps for universal fitting
Inventor: KESSEL HEINZ-WALTER
IPC: B60Q1/52
Filed: 1974-08-24
Abstract: The flasher control unit is mounted in a portable box complete with its own battery and the four flasher lights are connected to the box by two cables. The lights are fitted with magnetic bases and when required they are clamped to the four corners of the vehicle, with the control box placed on the front passenger seat. The system enables any vehicle to be provided with hazard warning flashers which require no expert fitting. The flashers can be used after a collision in which conventionally mounted lights are often damages, or when the vehicle battery is damaged. The system can also be fitted to a vehicle being towed to enable the direction indicators to be used independently to the hazard flashers.
Patent DE-2440772-A1 (DE)
Title: Circuitry for automatic monitoring of voltage for tolerance observance - has period meter loaded alternately with voltage frequency signal and amplitude signal
Inventor: FINK HELMUTH ING GRAD
IPC: G01R27/28
Filed: 1974-08-26
Abstract: The output signal from the period meter (9) is compared in a comparator (11) with two alternately connectable signal trains, the first of which consists of stored signal values tapped in succession and corresponding to frequency values identifying the transitions between tolerance values, while the second of which consists of stored signal values tapped in succession and corresponding to succeeding individual tolerance values. A comparator pulse (25) is formed which causes stepping-on in both signal trains to the next signal value. Another comparator pulse (27) is formed which acts as an error signal.
Patent DE-2443217-A1 (DE)
Title: Waste retainer for punched out paper tape - has two elastic catches to maintain interchangeable container in housing section
Inventor: LOHNES KLAUS
IPC: H04L17/20
Filed: 1974-09-10
Abstract: An interchangeable holder to collect the pieces cut out of a paper tape by a rotary punch device, has elastic catch devices (6, 7) mounted on the rear walls of the rectangular section cut out (2) which is open on two sides and forms part of the tape punching device housing. The elastic catch devices (6, 7) engage with guide pieces (9) attached to the container (3) used to catch the pieces cut out by the punch from the tape such that they can be easily released and hold the container (3) closely without play against the walls of the cut out sections (2).
Patent DE-2443644-A1 (DE)
Title: Car headlight reflector protective coating thickness measurement - using the polarization change in a linearly polarized light beam directed at the reflector
Inventor: ZEHENDER ERNST DR ING
IPC: G01N21/21
Filed: 1974-09-12
Abstract: The method used is to direct at the headlight a linearly polarized beam produced by a laser, along a path parallel to but offset from the central axis of the parabolic mirror reflector. This beam is reflected through the focus (F) of the reflector and thence reflected back along a patch parallel to the original one, but now elliptically polarized to an extent dependent upon the thickness of the protective coating. The degree of ellipticity is measured in an analyser arrangement using a window (12) polarizer (16), transducer (15) and feedback amplification network (17, 21). The ratio of ellipticity is measured and from this the coating thickness can be inferred from a characteristic which is also provided.
Patent DE-2453547-A1 (DE)
Title: 1-Alkyl-2-(pyridylthiomethyl)-5-nitroimidazoles prodn. - from corresp. 2-(acyloxymethyl or aralkoxymethyl) cpds. and mercapto pyridines, useful as antiprotozoals
Inventor: WINKELMANN ERHARDT DR
IPC: C07D401/12
Filed: 1974-11-12
Abstract: Process for preparing 5-nitroimidazoles derivs. of formula (I) comprises reacting 2-(acyloxy- or aralkoxymethyl)imidazoles (II) with mercapto pyridine (N-oxides) (R=CH2 or C2H5; n=0 or 1; X=acyloxy or aralkoxy; Y=H or alkali metal). (I) are antiprotozoals useful in human or veterinary medicine for control of e.g. Trichomonas vaginalis and Entamoeba histolytica. They are more active than metronidazole and can be applied orally or topically, the usual oral dose being 10-750 mg/day.
Patent DE-2454874-A1 (DE)
Title: D-A convertor has analogue output volts from first memory - controlled by measuring difference between internal and external references
Inventor: KINDERLING ECKART DIPL ING
IPC: H03M1/00
Filed: 1974-11-20
Abstract: The D/A converter has two counter registers which have one reference coupled to the integrator via a cycle control circuit. The integrator is switched via two analogue memories to two output circuits -- one giving the analogue output and the other an analogue reference voltage as in 2329822. The output voltages of one analogue memory is controlled according to the difference between the internally generated analogue reference voltage and an externally applied reference voltage. A gain controlled amplifier is connected before or after the first analogue memory.
Patent DE-2458272-A1 (DE)
Title: Tube joint sealing process - uses mould to cast synthetic resin cladding round the joint
Inventor: TIMPERT FRIEDHELM H
IPC: B29C70/74
Filed: 1974-12-10
Abstract: In process for joining the ends of tubes, particularly after damage in a concealed location within the wall or floor of a building, the ends are bonded by a coupling with compression rings and holding nuts. When the coupling has been inserted and the tubing joint is complete, the entire coupling zone is cleaned and degreased and placed within a casting mould for it to be encapsulated by a coating resin such as polyepoxide or a polyester resin. The system ensures that the joint is not only leak-proof but also has a long-term resistance to corrosion.
Patent DE-2500830-A1 (DE)
Title: Transferring printed colours from plastic films - by coating, applying onto new base and stripping off film
Inventor: LUEHRS KLAUS-P
IPC: B44C1/17
Filed: 1975-01-10
Abstract: Printed colours on plastic films are transferred onto another base by (a) coating the printed side of the film with a non-adhering cement, (b) applying the coated side evenly and without blisters onto the other base, (c) stripping off the film after the cement has cured. The process is cheap, simple and does not require special plant or skilled operators.
Patent DE-2506655-A1 (DE)
Title: Charcoal grill with fat-collecting bars - has two staggered rows of bars allowing unimpeded angled path of heat to grill rack
Inventor: RITTINGHAUS ROLF ING GRAD
IPC: A47J37/06
Filed: 1975-02-17
Abstract: The charcoal grill comprises a grill rack (1, 2) wherein fat-collecting bars (4, 5) are mounted in two planes beneath the rack and above the charcoal and are preferably mounted horizontally off-set relative to each other so that the gap between two of the upper bars is covered by the bar below. The spacing between the upper and lower rows of bars is such that the heat radiation from the charcoal can pass unimpeded through the gaps at an angle of 45 deg. to effectively heat and cook the food along the entire surface of the grill rack. The grill rack is mounted at such a distance above the upper row of bars that the degree of efficiency of the heat radiation is optimised.
Patent DE-2506972-A1 (DE)
Title: Exhaust gas afterburner discharge cooler - provides cooling for fire protection to discharge header and burner outlet pipes
Inventor: LIST HANS PROF DR DR
IPC: F01N3/05
Filed: 1975-02-19
Abstract: An engine exhaust system has an afterburner chamber (1) which secondary air enters from a mixing tube (2) through an opening (5) from a fan discharge pipe (3). Exhaust gas enters the afterburner through passages (21) from an inlet chamber (8). The burner operates on the reverse flow principle and burnt gases leave the outer burner cylinder (4) to pass into an outlet pipe (9) leading into a discharge header (10). From this they pass through several discharge pipes (12). The outlet pipe (9), the discharge header (10) and the discharge pipes (12) are all contained within the inlet chamber (8) into which unburnt and therefore cooler exhaust gas enters through a pipe (14) and which it leaves through the burner entries (21). This cools the burnt gases and thus reduces the risk of fire.
Patent DE-2510306-A1 (DE)
Title: Vertically moving door with drive motor - has compact housing with motor and bearings for counterweight shaft
IPC: E05F15/686
Filed: 1975-03-10
Abstract: The vertically moving door has an actuating unit with a shaft provided with counterweights. The actuating system is compact and the coupling elements are accurately aligned. The door is actuated by a drive motor with bearings firmly held on the housing with motor. The counterweight shaft (4) is pushed through these bearings. The motor housing is fixed with a bracket to the support structure. The counterweight shaft is driven by pulleys and belts (8, 9, 10). The bracket holding the housing has a flexible block which permits limited relative movement between the drive and support structure. Limit switches are provided for switching off the motor when door is fully opened or closed.
Patent DE-2512222-A1 (DE)
Title: Vehicle safe spacing indicator - has coloured sectors to indicate distance in front for different road surfaces and relative speed
Inventor: BURCKHARDT MANFRED DR ING
IPC: G01S7/04
Filed: 1975-03-20
Abstract: The vehicle is fitted with an automatic system which monitors the spacing from the vehicle in front, as well as the relative velocities of the two vehicles. The relative speed of approach is indicated by a movable coloured sector (7) in a first window (3), with increasing colour for increasing speed. The relative spacing of the two vehicles is indicated by a coloured strip (2) moving over the middle of the second window, with less strip shown as the distance is increased, i.e. the danger is reduced. The background of the second window is covered by movable coloured sectors which indicate the grip state of the road, as computed by the antiskid brake control. The drive has an immediate indication of the danger situation of his vehicle if he approaches too fast, or too close to the vehicle in front, in different road conditions.
Patent DE-2519658-A1 (DE)
Title: Double-skinned external wall for sterile-air interior - with inner closed airtight skin at interval behind facade with demountable elements
IPC: E04B1/74
Filed: 1975-05-02
Abstract: The inner skin is the form of a firmly closed airtight external wall component. An outer facade extends over the whole height of the building, at an interval in front of this, incorporating demountable element which are accessible by means of passages fitted on front, forming in turn an airtight approach to the intervening space between the skins. This is connected to one or more air intakes and air outlets, and has air conditioned appliances for the air flowing through the space. The access providing elements in the outer wall may be predominantly of glass, with glazed wall sections in the inner wall aligned with them.
Patent DE-2521821-A1 (DE)
Title: Video disc recorder-reproducer - has device compensating for time errors appearing during signal reproduction
Inventor: ODONE GIOVANNI
IPC: G11B7/08
Filed: 1975-05-16
Abstract: The video disc apparatus has a device for the compensation of time errors appearing during reproduction of recorded signals. Deflection of the element scanning the recorded signals takes place tangentially. Periodically occuring synchronisation signals, colour synchronisation signals etc. are separated, and their phase compated with that of reference signals. A control voltage corresponding to the phase deviation is used for the control of the disc driving motor, and also for the scanning element deflection. The deflection of the element is performed with the help of a rotatable coil which is coupled to a mirror and is positioned in magnetic field.