baber/WOPTO huggingface dataset:
Patent DE-2362681-A1 (DE)
Title: Control circuit for electrooptical elements in displays - has fewer terminals than needed for matrix control
Inventor: HEGELER WILHELM DIPL PHYS
IPC: G09G3/14
Filed: 1973-12-17
Abstract: The circuit is designed for control of electro-optical elements such as liquid crystals, light-emitting diodes, etc. Each element in series with a diode forms a connecting branch between two terminals of the circuit. Two such branches connect each pair of terminals whereby their diodes conduct in opposite directions, and each terminal is connected to each of the two terminals of a supply voltage source through a controlled semiconductor element. The latter are pref. controlled current sources and in this case it is possible to obtain a difference in brightness between the electro-optical elements. Control of n(n-1) elements is possible with only n terminals.
Patent DE-2402562-A1 (DE)
Title: Automatic search for modulated radio channels - determines field strength, stores result and test modulation of suitable channel(s)
Inventor: KOEPPL RAINER
IPC: H04W48/16
Filed: 1974-01-19
Abstract: The channels are modulated by a sign, formed by one or more signal frequencies. The receiver is consecutively tuned to carrier frequencies allocated to the channels by a clock pulse generator which controls an allotter supplying the channel and storage location addresses. Each channel is tested during a first cycle for a fields strength sufficient for a conversation. This test result is written in a store connected to the allotter output terminal. The channels with sufficient fields strength are tested during a second cycle by an evaluating device for signal frequencies, and when the call signal is detected in a second evaluation device, further testing is stopped. Preferably a storage location is provided for each channel, in which the results of the first test are stored.
Patent DE-2406644-A1 (DE)
Title: Magnifier for magnifications between about ten and seventy - with simply assembled lens tube stand and light source
Inventor: AUGST FROHMUT
IPC: G02B21/00
Filed: 1974-02-12
Abstract: The magnifier has a lens at its lower end and an ocular at its upper end with a light source at the side for illumination of a sample. A stand designed to be placed over the sample has an opening for insertion of a tube containing the lens and the ocular, and a second opening on the side in which the light source is inserted, whereby the axes of the two openings intersect each other in the plane of the lower edge of the stand. The light source is pref. a pocket lamp. The ocular is telescopically adjustable in the tube arrangement.
Patent DE-2410031-A1 (DE)
Title: Variable speed drive - uses wobble action of gear plate to change speed ratio with progressive adjustment
Inventor: BECKER HANS-OTTO
IPC: F16H3/44
Filed: 1974-03-02
Abstract: A variable gear drive consists of a hollow spherical body which has a number of internal slots to locate a circular ring with internal gear teeth. A universal joint connects the output shaft to the centre of this gear ring. The input shaft is located at the opposite side of the sphere. A universal joint connects it to a second shaft which at its other end carries a spur gear that is in mesh with the gear ring. The spherical body is free to rotate about the principal axis of the drive. The angular position of the gear ring relative to the axis determines the ratio between input and output speed. It can be selected by moving the input shaft in an axial direction.
Patent DE-2411448-A1 (DE)
Title: Wear resistant metal layer for casting bands - is applied to the thermal insulating coating on the casting band in continuous casting machines
Inventor: THEOBALD REINER
IPC: B22D11/06
Filed: 1974-03-11
Abstract: A metal casting band (esp. of steel) for use in continuous casting machines has a thermally insulating layer on the side turned towards the cast bar coated with a 30-500 (50-200)mu layer of at least one wear resistant layer of metal(s) whose m.pt. in degrees K is >=0.7 times the m.pt. in degrees K of the metal being cast. The metal which may be Mo, Fe, Ni, Ti, Cu or alloy of these may be applied to the thermal insulating layer by flame or plasma spraying or by electroplating. The metal coating is more resistant than the refractory, to wear occasioned by relative movement between the cast bar and the casting bands.
Patent DE-2414068-A1 (DE)
Title: Silo contents metering device - has segmentary shutter rotating against upstream face of plate with opening
Inventor: WINDELBAND GUENTHER
IPC: B65D90/58
Filed: 1974-03-23
Abstract: The device is for use at the discharge of a silo, where the powdery or granular contents are fluidised by compressed air, and comprises a plate across the outlet, with an opening in it whose area is equal to that required for the maximum desired flor rate. A segment-shaped shutter slides against the plate face on the inlet side, and is rotated from a position in which it blocks off the opening completely to one where this is completely unrestricted, so that the rate of flow is infinitely variable. The opening can be in the form of a segment of a circle, although the point about which the shutter rotates can be different from the centre of this circle.
Patent DE-2419069-A1 (DE)
Title: Leakage indicator for hydrocarbon fuels used in lighters - contg. silica gel impregnated with chromium trioxide
Inventor: WACKS KLAUS DIPL CHEM
IPC: G01N33/22
Filed: 1974-04-20
Abstract: Indicator showing leakage of a hydrocarbon fuel for lighters from a container damaged e.g. during transport consists of silica gel (pore rise 16-100 angstroms, pref. 20-28 angstroms; moisture content 0.01-28.0 wt.%, pref. corresp. to an equilibrium at 10-20% of relative humidity) impregnated with a CrO3-contg. soln. The indicator is contained in a chemically resistant tube (max. length 50 mm.) enclosed at both ends with perforated covers (apertures amount to 40% of the total cover surface); the tube is placed between the fuel container and the outer packing. Fuel leakage produces conversion of the indicator colouration from orange to green or black (depending on the degree of the leakage); this colour change is much sharper than the violet-brown change of permanganates normally used for this purpose.
Patent DE-2423502-A1 (DE)
Title: HV power cct. breaker switching resistor - has stacked, low-inductance sheet metal discs with meandering stampings
Inventor: BONIN ECKART VON
IPC: H01H33/16
Filed: 1974-05-15
Abstract: The switching resistor is intended for high voltage power circuit breakers and consists of stacked resistance discs, stamped out of low induction sheet metal in a meandering shape. The resistance discs (1) are stamped out as a continuous structure from a flat sheet metal strip. Then the connected resistance discs are mechanically folded on preset locations to form in a harmonica fashion a resistance stack (4). Between the adjacent discs are preferably inserted intermediate insulating discs (5) with rectangular recesses for retention of the folding parts of the disc connections. The opposite folding locations may be mutually offset.
Patent DE-2425774-A1 (DE)
Title: Aerosol spray can - is enclosed in sleeve with sight hole and which can be rotated
Inventor: PETEREIT RUDOFL
IPC: B65D83/14
Filed: 1974-05-28
Abstract: The can is particularly for paint spraying, and has a sleeve (10) with a slight hole (11) in it, thrust over it and which can be rotated on it. The hole or opening can run parallel to the can axis and for its entire length, being in the form of a continuous slot, its maximum width being less than half the can circumference. It can be of elastic and expansible material, the slot being wide enough to allow fitting over the can in the sideways direction. It can be built up of layers of cardboard, the slot width being approximately one-fifth of the sleeve circumference. Instructions in different languages can easily be fitted to the can, to suit the country to which is being exported.
Patent DE-2431672-A1 (DE)
Title: Packing tubes for objects of varying length - have internal helixed teeth and external location rim
Inventor: ROESLER PETER
IPC: B65D21/08
Filed: 1974-07-02
Abstract: A tubular container closed at one end, has an internal diameter which produces a slide fit for a second similar tube. The larger tube has an internal helix from which a number of axial segments have been omitted. The leading end of the second tube has an external rim which engages in the helix teeth of the larger tube. When packing an oblong object, the two tubes are pushed together to the length of the object, thus different length objects can be packed with the same size container tubes. Objects of various lengths and diameters can be taken up within certain areas and the tubes are especially useful in an automatic packing process.
Patent DE-2438922-A1 (DE)
Title: Coating for electrical contacts - for soldering contacts made of oxide contg. cpd. material
Inventor: MALIKOWSKI WILLI
IPC: H01H1/023
Filed: 1974-08-14
Abstract: The surface of electrical contacts made of Ag-base material contg. a metal oxide such as Cd-, Sn-, Zn-, and/or In oxide, is covered with a layer of molten solder. The reaction products of the solder and oxide component of the substrate, which rise to the surface, are removed by pickling or by mechanical means. Pref. the substrate of the compound material contains =20 vol.% Cd oxide, or =20 vol % Sn oxide. Process is for soldering contacts onto contact carriers.
Patent DE-2439184-A1 (DE)
Title: Multi way valve and control mechanism - has axially moving slider with ring seals held by sleeve and with lever operation
Inventor: FRIES JAN RIDE
IPC: F16K11/10
Filed: 1974-08-16
Abstract: There is a feed pipe, a vent pipe and a service connection to a housing and an axially moving slider operating with ring or disc shaped seals. In the closed position on the seating, two of the pipes are sealed. Each seal is connected by a sleeve with the slider via a lever arrangement. the ring or disc shaped seals on the slider are coaxial to one another. The levers fit through a break in the sleeve and there is a sealing metal bellows that holds the sleeve relative to the valve chamber wall. The bellows also act as a spring holding the seal in the closed position. A valve seating on each side of the valve and two auxiliary valves together with a pressure sensing circuit, including a measuring capsule form a servo circuit for valve operation.
Patent DE-2443006-A1 (DE)
Title: Vehicle servo assisted clutch - with servo piston coupled to clutch pedal and operating in different modes
Inventor: HARTEL HEIMO-J DIPL ING
IPC: F16D25/08
Filed: 1974-09-07
Abstract: The clutch pedal (12) operates the clutch master cylinder (17) via one lever arm (16b) and is connected to a servo cylinder (20) with a second lever arm (16a). The servo cylinder is pneumatically operated and operates in three distinct phases w.r.t. clutch pedal movement. Initially the servo pressure rises with clutch pedal movement until an operating pressure is reached, which remains constant with increasing clutch pedal movement. The last phase operates on a reducing servo pressure so that the driver does not press the pedal hard against the end stop. The pedal is thus easy to operate and provides some amount of 'feel' over the constant pressure phase, in which only the clutch pedal spring pressure changes.
Patent DE-2444111-A1 (DE)
Title: Space saving low-level bunk bed with improved safety - has two bunks offset relative to each other by half their length
Inventor: EINSELE ROLF
IPC: A47C19/22
Filed: 1974-09-14
Abstract: The bunk bed arrangement comprises two lower and support frames each consisting of two wooden uprights and an end or head board intended for use with the lower bed which fits in between the two side members. A similar upper frame is provided which is mounted on longer (higher) wooden uprights and supports an upper bunk wherein the two bunks are off set relative to each other in the longitudinal direction by half the length (A) of each bunk. It is possible for the supporting frame of the lower bunk to also act as the supporting frame for the upper bunk in which case the common frame is mounted at one end of the lower bunk but approximately in the middle beneath the upper bunk. The free space provided beneath one end of the upper bunk can be turned into a cupboard.
Patent DE-2444181-A1 (DE)
Title: Small calibre bullet for shotguns - is held in cartridge case with envelope discarded on firing
Inventor: FERRANDI MARIO
IPC: F42B7/10
Filed: 1974-09-16
Abstract: The cartridge with small calibre bullet and discarded envelope is used especially in shotguns. The small calibre bullet is accommodated within the shot gun cartridge case and the bullet enclosing envelope is discarded after the bullet emerges from the shot gun muzzle. The bullet (5) is accommodated into a cylindrical housing which is open towards the muzzle. This housing (4), which forms the enclosing envelope for the bullet, is made integrally from a lightweight material. The housing and bullet are held in the cartridge case (1) by a star shaped closing end. This bullet utilises the full power of the powder charge.
Patent DE-2446959-A1 (DE)
Title: Simultaneously acting forming press tools - has parallelogram and cylinder actuated sliding low friction tool actuating mechanism
Inventor: RIBBACK ERICH
IPC: B30B7/04
Filed: 1974-10-02
Abstract: The forming machine has at least three driven press tools arranged into a press frame. The tools enclose between them a workpiece profile and on closing each tool slides along the adjacent tool. This press is used especially for pressing of pipe bends. The cross section of the profile can be adjusted without changing of tools steplessly between a maximum and a minimum value. The guide of a press tool in the press frame has parallelogram levers provided for each press tool. This lever system is pivoted on the press tool and also on the press frame. Each press tool is actuated by its own cylinder which is also pivoted on the press tool as well as on the press frame.
Patent DE-2449830-A1 (DE)
Title: Water soluble, pre-impregnated, moist paper tissue - coated for strength which fails when tissue is flushed in W.C.
Inventor: VASILYADIS KOSTA O NEWARK
IPC: A47K10/02
Filed: 1974-10-16
Abstract: Water-soluble, pre-impregnated paper tissue is made from a soft, absorbent, fibrous sheet comprising >50% by weight of short, celluslosic fibres of less than 6.35 mm length. A water-insoluble adhesive layer is applied to one face of the sheet to cover more than 50% of its area with separated islands of adhesive which penetrates slightly into the sheet, the islands being separated by channels untreated with adhesive. The other face of the sheet is coated over the whole area with a layer of water-insoluble adhesive which penetrates slightly into the sheet but does not meet adhesive from the first face. The tissue is then impregnated with as much moisture as it will hold without dripping, i.e. between 100% and 350% of the dry wt. of the tissue, the moisture is water plus, e.g. a disinfectant, alcohol, glycerine etc. Pre-packed, moisture-impregnated paper tissue obtd. is useful for instant, moist wiping of body parts such as face, neck, under arm or anus after cleaning with toilet paper. Whilst strong enought not to brea up when in wiping use, the untreated channels allow the tissue to fall apart readily when subjected to the water flush of a domestic W. C.
Patent DE-2455167-A1 (DE)
Title: Wire preparation for production of reinforcement wires or rods - involves large numbers of wire rings which are attached to wire roller spool
Inventor: HUFNAGL WALTER
IPC: B21C49/00
Filed: 1974-11-21
Abstract: The start of a wire of a first wire ring is attached to wire roller spool using a large number of wire rings and the wire is then drawn off the wire ring perpendicular to the wire ring centre line and is spooled on to the wire roller spool. Then the end of the wire of the first wire ring is welded obtusely to the beginning of a second wire ring, with the wire being again drawn off perpendicular to the wire ring centre line and also being spooled on to the wire roller spool. This process carried out for the second wire ring is then repeated with as many further wire rings as are required to cover the wire roller spool equally with wire.
Patent DE-2501586-A1 (DE)
Title: Joining together two adhesive tapes - tape rollers and slot gauge joint tapes enclosed in container
Inventor: DEMME KLAUS
IPC: B65H39/16
Filed: 1975-01-14
Abstract: Device in form of a container for joining two single adhesive tapes in one double tape includes a vertical axis on which are rotatably mounted above each other two rollers storing the tapes. The tapes, when wound off the rollers, are guided through a slot gauge by which they are moved in an overlapping position and joined together along their overlapping edges. The axis together with the rollers and the slot gauge are mounted and completely enclosed in the container. The inner side of the base and cover plates of the container between the rollers and slot gauge can be formed as steeped planes to avoid rubbing the tape.
Patent DE-2502204-A1 (DE)
Title: Electrical coupler of loose components held in position - has drive member rotating around shaft and engaging member pressing against coupler
IPC: H01R13/621
Filed: 1975-01-21
Abstract: The electric coupler consists of two loose components which are prevented from unintentional separation or decoupling. It consists of a drive member (19) which rotates about a shaft and an engaging member (98) which moves with the drive. The engaging member presses against a section (100) of the screw coupling (66) enabling it to move in a given direction. There is a wedge-shaped member (110) which can move along an arc relative to the screw coupling and the drive. The wedge-shaped member prevents decoupling of the drive and driven members. The wedge-shaped member can be put out of action by the engaging member, when the drive is rotated in the opposite direction.
Patent DE-2503087-A1 (DE)
Title: Central control computer - directs matrix of individual processors with information transfer over buffer and instruction and feedback buses
Inventor: SCHOMBERG HERMANN
IPC: G06F15/16
Filed: 1975-01-25
Abstract: A general purpose central control computer co-ordinates the operation of a large number of individual processors arranged in a matrix. The matrix structure is arranged with two basic types of processor arranged alternately. Two way data communication occurs between adjacent processors. A control unit has two main instruction buses one coupled to the 'S' processors and one to the 'W' processors. Interlock lines provide feedback from the processors to control unit. The top row of processors in the matrix connect with a buffer store that provides a data link over the control unit to the central control processor. All processors operate synchronously from a central clock generator.
Patent DE-2503623-A1 (DE)
Title: Ventilating system for switchgear cabinet - has additional fan released by electromagnet as standby to main fan when its failure
Inventor: REKOW HEINZ-PETER
IPC: H05K7/20
Filed: 1975-01-29
Abstract: The ventilating system for switchgear cabinet systems has two or more ventilator fans (2, 3) per each cabinet arranged axially directly one behind the other. One (3) of the ventilator fans has an electromagnetic blocking device (4) to stop this fan from rotating, whilst normal conditions prevail. If the operating fan (2) fails, the electromagnetic device releases the second fan (3) so that this fan is employed in ventilating the cabinet. The blocking device consists of an electromagnet that drives a pin into the path of the auxiliary fan blades. This system prevents ventilation failures and provide a secure stand-by arrangement.
Patent DE-2505140-A1 (DE)
Title: Money sack guarantee seal - comprises strip breakable by hand widened by squeezing to lock in housing
Inventor: PIKE IAN MAXWELL
IPC: B65D63/14
Filed: 1975-02-07
Abstract: The seal is particularly for use with money sacks, and has a housing of relatively stiff material but which can nevertheless be distorted, and a flexible strip which can be broken by hand. Both ends of the strip are inserted in the housing and widened by squeezing so that they cannot slide out. No tools are necessary to break the strip. One strip end can be widened by squeezing at both ends of the housing. The strap ends can be inserted in a buckle of distorting but relatively stiff material, which is then inserted in the housing and secured there by squeezing. The buckle is used to break the strip.
Patent DE-2511853-A1 (DE)
Title: Active inductance free basic filter section - has differential amplifier whose first input is at the reference potential
Inventor: THEPAUT PIERRE
IPC: H03H11/12
Filed: 1975-03-18
Abstract: The filter section, one input and one output terminal, are also at the reference potential. Two-terminal networks are arranged as follows. The first is between the filter second input terminal and the differential amplifier second input. A second is between the differential amplifier second input and its output. A third is between the amplifier output and the filter second output terminal. A fourth is between the filter second output terminal and the amplifier second input terminal. A fifth is between the filter two output terminals. Each two terminal networks is a single capacitor or a resistor.
Patent DE-2516310-A1 (DE)
Title: Spectrophotometric determination of albumin - as sulphonphthalein dye complex using surfactant to prevent pptn of the complex
Inventor: GINDLER MELVIN
IPC: G01N33/68
Filed: 1975-04-15
Abstract: In the determination of albumin in biological fluids by the addn of a buffered aqs. soln (A) of a sulphonphthalein dye and the spectrophotometric measurement of the absorbence of the obtd. soln the improvement comprises adding to the dye soln (A) a water soluble phosphate-contg. anionic surfactant formed from a >=8 C hydrophobic alcohol, pref of formula (where X is Na, K, NH4 + or an org. amine, W is RO(CH2CH2O)n ; Z is W or XO-; n is 1-30 pref. 2-10; R is alkylaryl, contg. a 10-30 pref. 14-22 C alkyl gp). The surfactant prevents the pptn of the protein-dye complex and eliminates the problem of turbidity and increases the sensitivity of the measurement.
Patent DE-2522324-A1 (DE)
Title: Counter current gas-liquid contactor - using jet ejector effect from liquid input to pull gas through column
Inventor: BALAZS ADAM DIPL ING DR
IPC: B01D19/00
Filed: 1975-05-20
Abstract: Process for mass transfer between gases and liquids in counter-current flow in which the liuid flows from the first contact stage to the nth (n>=2) by gravity uses the kinetic energy of the liquid entering the first stage to induce a vacuum in the next stage and so draw gas into the gas inlet branch on the nth stage. This is achieved by passing the liquid through a nozzle to produce a narrow jet and using the ejector principle. 5-20% of the liquid leaving the nth stage can be taken, its velocity raised and its kinetic energy. Then used to produce a pressure in the gas inlet to the nth stage and thus push it through the column. For use on gas/liquid contacting esp. for absorption into liquids or desorption from them. Simple liquid contact devices using the ejector principle are known. the system described extends the advantages associated with them to counter-current operation. Main advantage is that only one stream used be pumped.
Patent DE-2525146-A1 (DE)
Title: Multi circuit protection valve for air brake - with variable flow valve incorporated in overpressure valve
Inventor: GRUENER HANS
IPC: B60T11/32
Filed: 1975-06-06
Abstract: The multi circuit airbrake system has at least two sets of venting valves fitted with flow restrictions, which increase in area with opened valve. This is achieved in a simple layout by incorporating the flow restriction valve in the venting valve element, but with a smaller area. When the valve opened the pressure drop across the venting valve is larger than that across the throttle valve, and thus an effective pressure is maintained in front of the venting valve to enable it to open at engine idling speed, if the circuit has a leak.