baber/WOPTO huggingface dataset:
Patent DE-2747147-A1 (DE)
Title: Field-effect fluidic crystal display cell - has ridges on facing surfaces of substrate plates to assist in alignment of elongated molecules
Inventor: KANDO YASUHIKO
IPC: G02F1/139
Filed: 1977-10-20
Abstract: The field-effect fluidic crystal display cell has a nematic fluidic crystal layer (8) sandwiched between two substrate plates (1, 4) carrying opposing transparent electrodes (2, 5). The inner face of each substrate plate (1, 4) has a number of parallel ridges, the directions of the ridges for both substrate plates intersecting one another, so that the molecular alignment for the fluidic crystal layer (8) is twisted. The height of the helix defined by the characteristic twist is formulated in terms of the distance between the two substrate plates (1, 4) and the angle between the ridges of the two substrate plates (1, 4).
Patent DE-2751750-A1 (DE)
Title: Electrolyte residue removal from plated wire - by pulling wire through die after coating it with wetting agent
Inventor: WEBER EDUARD
IPC: C25D21/08
Filed: 1977-11-19
Abstract: Removing residual electrolyte from the surface of a wire as it leaves an electrolytic chemical plating bath consists of first applying a wetting agent liq. to the wire and then pulling the wire through a drawing die to reduce its cross-section. Specifically, the flow of wetting agent liquid is transverse to the direction of movement of the wire, and the residual liq. is returned to the plating bath. The proportion of wetting agent in the liq. may be increased to compensate for loss of the agent in the electrolytic bath. The pref. cross-section redn.
Patent DE-2753711-A1 (DE)
Title: Regulating corona discharge treatment of films - blade electrode is adjusted accurately relative to roller by central regulator
Inventor: KALWAR KLAUS
IPC: B29C48/08
Filed: 1977-12-02
Abstract: Materials such as plastic films are treated with corona discharge, using roller and blade electrodes with adjustable gap between them; the blade electrode movement is arranged uniformly by means of a central adjusting device, both electrodes being mounted on a common frame so that the gap is controlled accurately. Accuracy of gap is quickly adjusted and not affected by operator expertise.
Patent DE-2755434-A1 (DE)
Title: Opposed piston reciprocating IC engine - has axial machine driven by engine arranged between opposed cylinders
Inventor: HOFFMANN MANFRED
IPC: F01B11/00
Filed: 1977-12-13
Abstract: The machine has two cylinders (1, 2) forming part of an internal combustion engine directly in line with each other. The pistons (4, 5) in the cylinders are linked by a common piston rod which passes through a housing (3) between the cylinders. The housing contains a reciprocating machine such as a pump, shredder or linear electric generator. It is operated directly by the piston rod of the engine cylinders. The two engine cylinders are timed so that the expansion stroke of one coincides with the compression stroke of the other. The arrangement eliminates friction losses due to lateral forces produced by a crank mechanism.
Patent DE-2756418-A1 (DE)
Title: Flange seal system with serrated middle ring - has sealing rings with thicker cross section middle parts
Inventor: TUECKMANTEL HANS-JOACHIM DIPL
IPC: F16L23/18
Filed: 1977-12-17
Abstract: The flange seal system has serrated ring between flat sealing rings. Sealing effect is ensured by relatively low sealing clamping forces. The flat sealing rings (4) have cross section middle part thicker than the edges (10) of such a sealing ring. For this purpose a sealing ring cross section can have convex side which faces the flange face. The other side remains flat and contacts serrated ring (5). the middle bulge can be also produced by using two rings with overlap.
Patent DE-2759206-A1 (DE)
Title: Reinforced concrete blocks for roads or footpaths - where blocks contain tiles forming the surface exposed to wear
Inventor: SCHUBERT WOLFGANG
IPC: B28B7/00
Filed: 1977-12-31
Abstract: Composite concrete blocks are made for the construction of roads, footpaths etc., used by vehicles or pedestrians, starting from a mould with several recesses(a) in its base. Panels or tiles(b) with a thickness larger than the depth of recesses(a) are located in the recesses, and the gaps between the tiles(b) are filled with sand or a similar material. Tiles(b) are made of natural and/or synthetic materials, or ceramics; and one or more layers of concrete(c) are poured into the mould, which is vibrated. After setting, the block is stripped from the mould and the sand replaced by mortar which forms joints between tiles(b). The mould is then used as a protective cover for the block. The concrete pref. contains a reinforcing grid, esp. a grid made of metal strips standing on edge. Pref. the mould is of polystyrene and the concrete contains 5-20% pasticised vinyl polymer resin. Any desired material can be used for the tiles(b) which form the working surface of the blocks.
Patent DE-2800116-A1 (DE)
Title: Linear pulse frequency modulator - sharpens edges of difference frequency from two push=pull sinusoidal oscillators
Inventor: TIMMERMANN CHRISTIAN DR ING
IPC: H03K7/06
Filed: 1978-01-03
Abstract: The pulse frequency modulator, e.g. for TV signals, has a linear relationship between input amplitude and output pulse frequency. Linearity is accomplished using a push-pull modulator for a sinusoidal waves. The carrier wave resulting as a difference frequency is filtered out converted into an FM rectangular waveform by sharpening its leading and trailing edges. The difference frequency, e.g. 20MHz, is produced by mixing the outputs, e.g. 40 and 60 MHz from two pushpull oscillators receiving the signal to be transmitted with opposite polarity.
Patent DE-2808150-A1 (DE)
Title: Gas purificn. plant for blast furnace - provides constant low pressure gas to consumer duct using ring gap washer connected to turbine via duct with by=pass and reservoir
Inventor: ACKEREN PAUL VAN DIPL ING
IPC: C21B7/00
Filed: 1978-02-25
Abstract: A ring gap washer (a) is used to maintain a constant counter pressure in the furnace, and the washer is followed by a gas pressure redn. device, viz. a turbine and a swivel shutter forming part of a control circuit which provides a constant supply of low pressure gas to a consumer duct. The control circuit receives signals from a flow meter measuring the vol. of wind fed to the blast furnace, and the duct connecting washer (a) to the turbine has a by-pass and also a gas storage reservoir providing gas when the pressure of the gas leaving washer (a) drops periodically, i.e. during operation of the furnace. The constant gas supply is obtd. in the consumer duct despite fluctuations in the amt. of gas generated by the furnace.
Patent DE-2810368-A1 (DE)
Title: Recessed switch with rocker operating movable contacts, - has all contacts connected to external terminals where wire sockets can be put on
Inventor: BAER SIEGFRIED
IPC: H01H1/58
Filed: 1978-03-10
Abstract: The switch has a rocker operating movable contacts in the case. The fixed and movable contacts are connected to external terminals for connection with connectors at the ends of wires. At least one of the terminals is made in one piece with the switch case (12) and serves as a receptacle for the insertion and holding of a socket (20) at the end of a wire (18). The contacts (30) reach to the inside of the fully inserted sleeve (20). The contact block has tubular side-pieces (36).
Patent DE-2817470-A1 (DE)
Title: Integrated logic gate with lateral transistor - has low-ohmic region in transistor base zone and of identical conductivity
Inventor: FLOCKE HEINER DIPL ING
IPC: H01L29/10
Filed: 1978-04-21
Abstract: The bipolar, highly integrated logic is suitable for analog/digital switching circuits e.g. for regulating and control electronic applications. In the integrated logic gate a low ohmic region of the base conductivity is provided in a base zone of a lateral transistor. This region is so highly dopped that the gate current amplification is obtained by reducing the re-injection in the lateral transistor base zone. Pref. the low-ohmic region extends from the emitter to the collector zone, or possibly from the substrate surface inwards. It may reach down to such depth that the low-ohmic connection is of identical charge type. The low-ohmic region may be formed by a diffusion zone.
Patent DE-2829161-A1 (DE)
Title: Curtain rail end piece - drives and guides pull cord, and is fixed by radially sprung cylindrical tension pins
Inventor: BLUEMLE MANFRED
IPC: A47H1/04
Filed: 1978-07-03
Abstract: The end piece (4) for a curtain rail (1) incorporates a mechanism for driving and guiding the pull cord of the curtain. It is easily fixed to the front surface of any curtain rail. The end piece is fixed touching the rail by means of cylindrical tension pins (2) which are radially sprung and have one lengthwise slot along them. The tension pins are clamped or pressed into holes in the end piece and in the curtain rail so that they lie flush with it, and are, for example parallel to the pull cord.
Patent DE-2830854-A1 (DE)
Title: Rotary IC engine with oval housing inner wall - has circular rotor with three sliding vanes dividing elliptical cylinder into two independent working chambers
Inventor: GIERSTORFER INGO
IPC: F02B53/04
Filed: 1978-07-13
Abstract: The engine has a cylinder with an elliptical inner profile. A circular rotor is mounted centrally in the cylinder and touches the ellipse at the ends of the shorter axis. It divides the cylinder into two chambers. The rotor has three radially sliding vanes which are pressed by springs against the cylinder wall. Each working chamber has an inlet port and an exhausst port. There is a sparking plug in each chamber. The provision of two chambers with three vanes ensures that the engine can start in whatever position it has come to rest in and obviates the need for a flywheel.
Patent DE-2832779-A1 (DE)
Title: Rotary radial seal strip compressor - has eccentric rotor in cylindrical housing with inlet and outlet ports in end covers only
Inventor: VINZ SIEGFRIED DIPL KFM ING GR
IPC: F04C18/30
Filed: 1978-07-26
Abstract: The rotary compressor comprises a rotor with radial sealing strips eccentrically arranged in a cylindrical housing. The inlet and outlet ports are not arranged in the cylindrical housing wall, but in the end covers. The end covers may contain a hollow space divided into two chambers by a partition. The chambers may be so arranged that the medium entering from the inlet connection flow either into the compression or the expansion chamber between rotor and housing wall, or is split into two flows. A number of these units may be arranged end to end with a common shaft and connected in series or in parallel.
Patent DE-2834201-A1 (DE)
Title: Tumbling motion riveting tool - has riveting ram serving as guide element with spherical joint seated in workpiece holder
Inventor: HAUG REINER ING GRAD
IPC: B21J15/12
Filed: 1978-08-04
Abstract: The tool is attached to the spindle of a riveting machine by its drive element (2), provided with an eccentric disc (2a) on the peripheral surface of which a riveting ram holder (1) is fitted. The holder is radially movable but is prevented from rotation by an arm (13) resting against a stationary stop (14). The riveting ram holder carries a plate (4) in which riveting rams (3) and guide rams (8) are fitted slidingly in bushes. The plate is mounted on the drive element in an inclined position. The ends of the rams are spherical and are seated in sockets of the pressure plate (6). When the drive element is rotated the eccentric plate (2a) produces a tumbling movement of the ram holder and at the same time the pressure plate produces reciprocating movements of the rams.
Patent DE-2834413-A1 (DE)
Inventor: REINERT GERHARD DR
IPC: D06P5/04
Filed: 1978-08-05
Abstract: A process for aftertreating dyed textile material consisting of or containing polyester fibres and thus preventing oligomer deposits on the dyeings, which process comprises treating said textile material at a temperature below the glass transition point of the polyester fibres with an aqueous emulsion of an oligomer-dissolving substance which consists of (A) AN ESTER OF AN ALIPHATIC OR AROMATIC CARBOXYLIC ACID WITH AN ALIPHATIC OR ARALIPHATIC MONOALCOHOL CONTAINING 1 TO 10 CARBON ATOMS, (B) AN ALIPHATIC OR AROMATIC HALOGENATED HYDROCARBON, (C) A NON-IONIC ADDUCT OF NOT MORE THAN 10 MOLES OF ALKYLENE OXIDE WITH ALCOHOLS, FATTY ACIDS OR AMINES, EACH CONTAINING 8 TO 22 CARBON ATOMS, OR WITH PHENOLS WHICH CAN BE SUBSTITUTED BY ALKYL OR PHENYL, THE CLOUD POINT OF SAID ADDUCT BEING BELOW THE APPLICATION TEMPERATURE, OR (D) A POLYETHYLENE OXIDE/POLYPROPYLENE OXIDE BLOCK POLYMER, THE HYDROPHOBIC POLYOXYPROPYLENE MOIETY OF WHICH HAS A MOLECULAR WEIGHT OF 800 TO 4000, AND THE HYDROPHILIC MOIETY OF THE ENTIRE MOLECULE IS FROM 10 TO 35% BY WEIGHT, THE CLOUD POINT OF SAID BLOCK POLYMER BEING BELOW THE APPLICATION TEMPERATURE, OR WHICH CONSISTS OF A MIXTURE OF SAID SUBSTANCES (A), (B), (C) AND (D).
Patent DE-2846220-A1 (DE)
Title: Welding machine for thermoplastic films cut into lengths - has take=off conveyor surface offset to welding gap
Inventor: SCHULZE EHRHART
IPC: B29C65/74
Filed: 1978-10-24
Abstract: The surface of the conveyor taking away folded lengths of thermoplastic film formed into sacks during passage through a welding gap, is offset downwards relatively to the axis of the hold-up cylinder which with the welding cylinder constitutes the welding gap of a sack-making plant. This offset forms an angular cavity between the surface of the hold-up cylinder and that of the conveyor; the cavity being covered by a guide plate aligned tangentially to the surface of the hold-up cylinder. Machine allows the handling without difficulty in a welding machine of extremely thin films of thermoplastic material, which rest freely on a hold-up cylinder.
Patent DE-2855867-A1 (DE)
Title: Multiway plug and socket connector with spring-loaded joint - has slits in socket terminating in spherical head engaging hemispherical head of plug
Inventor: WARISLOHNER JOSEF
IPC: H01R13/633
Filed: 1978-12-22
Abstract: The multiway plug and socket connector have a spring-loaded joint. The socket is made with a number of longitudinal slits along the edges. The socket can withstand a large amount of wear and has a long effective life. The slits in the socket (1) each terminate in a spherical cavity (2). This cavity will engage the hemispherical edge of the plug. Each socket section is contained in a housing with a hole (3) with an internal diameter greater than the external diameter of the cavity. The plug (5) and socket (1)have a section with a larger diameter than the ends which engage.
Patent DE-2900258-A1 (DE)
Title: Current regulating circuit for diagnostic x=ray generator - using transistor threshold switch for on=off switching of heating transformer
Inventor: SCHWARZMANN KURT DIPL ING
IPC: H05G1/34
Filed: 1979-01-04
Abstract: The circuit controls the current for the X-ray tube in accordance with the threshold setting of a switch. This receives a signal corresponding to the instantaneous value of the effective heating current and its output controls the ON-OFF switching of the heating transformer (5). The signal representing the effective heating current is supplied by a series circuit with a squaring device (11) providing the square of the voltage across a measuring resistor (10) in the heating circuit (6...10) and an integrator (13) which is reset every half cycle. The measuring resistor (10) is connected across the DC diagonal of a rectifier bridge (9), with the AC diagonal lying in series with the heating circuit (6...10). The squaring device (11) pref. comprises a difference amplifier, while the threshold switch comprises a switching transistor (7) connected via a diode bridge (8) to the primary (6) of the heating transformer (5).
Patent DE-2903342-A1 (DE)
Inventor: SCHELER SIEGFRIED DIPL CHEM DR
IPC: C07D295/22
Filed: 1979-01-29
Abstract: This invention relates to a derivative of 2-hydroxy-naphthalene of the general formula   <IMAGE>   wherein A is   <IMAGE>  and X is -OH or   <IMAGE>  and R1, R2, R3, and R4 are identical or different and are hydrogen, cycloalkyl having up to eight carbon atoms, which is optionally substituted by lower alkyl groups, aralkyl having up to 10 carbon atoms or aryl which is substituted by lower alkyl, lower alkoxy, halogenalkyl or alkyl-substituted amino groups or by halogen, or R1 and R2 or R3 and R4 in each case are, conjointly with the nitrogen atom to which they are attached, identical or different heterocyclic groups which are optionally substituted by lower alkyl.
Patent DE-2906772-A1 (DE)
Title: Telephone exchange system to indicate cost of calls - redirects requests for call-cost from unused sub-exchange to sub-exchange in operation
Inventor: HONOLD HORST DIPL ING
IPC: H04M15/34
Filed: 1979-02-21
Abstract: The call-cost indicating system allows the stored cost of calls relating to a subscriber to be called up quickly on request by an exchange operator. The exchange comprises several sub-exchanges (e.g. night exchange). A request for call costs made to a sub-exchange not in use is redirected to another sub-exchange. When a second request is received by a sub-exchange already busy with a first request, the second request is held until this sub-exchange is free. If a third request to the same sub-exchange then occurs then it is redirected to the next free sub-exchange. All requests are held in a central memory if no sub-exchange is free. The requests thus stored are worked through in the order in which they were stored when sub-exchanges become free.
Patent DE-2910693-A1 (DE)
Title: Exhaust gas turbocharger for IC engine - has auxiliary impeller to form low friction oil seal between bearings and compressor
Inventor: SCHIPPERS HEINZ DIPL ING
IPC: F01D11/04
Filed: 1979-03-19
Abstract: The turbocharger has a shaft (7) with a turbine (16) at one end and a compressor (19) at the other. The shaft is supported in bearings (8, 9) in a bearing housing (2) between the turbine and compressor housings. The backplate (50) of the compressor housing (3) has a recess on the side facing the bearings, and an auxiliary compressor impeller (40) revolves in this. This impeller is keyed to the same shaft as the main compressor and turbine. The auxiliary compressor impeller draws an air-oil mist out of the bearins and discharges it into the oil outlet (13) and thus acts as a seal between the bearings and the engine intake.
Patent DE-2916967-A1 (DE)
Title: Shelf for merchandise display - consists of grille with side plate brackets hooking onto uprights
Inventor: SIEGEL FRANZ
IPC: A47F5/13
Filed: 1979-04-26
Abstract: The shelf for merchandise is designed to prevent the deposit of dust and dirt, and consists of uprights (1) fixed at a certain distance apart and to which brackets are attached supporting the grill-type shelves (7). The brackets consists of metal side plates (4) joined to the grilles (7). The plates (4) have hooked extensions (5) which hook behind vertical slots (3) in the square tubular uprights (1). The plates are L. shaped, with one side parallel to the shelf base (7) and the other side vertical and paralle to the back (8) wall of the shelf. An upward-turned flange (6) at the front of the shelf base (7) is part of the front of the shelf. Partitions (10) divide up the shelves and have projections (12) on their frames (11).
Patent DE-2921873-A1 (DE)
Title: Flat roof verge cladding profile fixture - involves support head and c shaped piece clamped together as complementary spreaders
IPC: E04D13/155
Filed: 1979-05-30
Abstract: A retaining device is used for a roof edge fixture. It has a sloping bridging profile for the roof covering mounting, and has a C-shaped piece gripping a height-adjustable support head. It is used in a device for fastening the cladding profile of verge cladding which encloses the edge of a flat roof. The head (4) and/or C-shaped arc piece (5) are made in the form of corresponding spreader elements. This enables the arc piece to be clamped onto the head, either directly or with the roof skin (7) interposed. The head can be double-C-shaped, with two resiliently elastic pieces. The open edge of the roof skin can be quickly and easily fixed, without additional appliances being used.
Patent DE-2924671-A1 (DE)
Title: Ground cultivator with transverse rotors - has rear rotor set shallower and producing finer crumbled structure
Inventor: BOTSCH JOERG
IPC: A01B33/02
Filed: 1979-06-19
Abstract: The ground-cultivator, particularly a crumbler, has a driven transverse front rotor with radial tools, and a driven transverse rear one adjustable for height in relation to the front one. The rear rotor (6) is set to work more shallow compared with the front one (18), and the ratio of tool densities and rotational speeds between the two is such that the rear one produces a more finely crumbled structure. The front rotor can have fewer tools and be driven more slowly, and their direction of rotation can be reversible individually or together, while the circles described by the two sets of toolscan overlap.
Patent DE-2924909-A1 (DE)
Title: Electric egg cooker with programmable timer - opens lid or provides acoustic signal and disconnects heating at end of cooking time
Inventor: WITTMANN DIETER DIPL ING
IPC: G04G15/00
Filed: 1979-06-20
Abstract: The egg cooker comprises a covered pan (4) incorporating a heating element in its base and with a variable timer, which provides a signal at the end of the selected cooking time and/or opens the pan lid. The timer comprises a programme clock (32) with various timing settings used to select the cooking time. Pref. the pan (4) contains a removable support plate which is formed in three separate sections (12,14,16), each with a number of apertures for receiving the eggs. The three sections (12,14,16) can be simultaneously lifted from the pan (4) via respective handgrips (26) which fit together at the centre. The heating element is pref. disconnected when the end of the selected cooking time is reached, the lid operating a switch (42) for resetting the timer (32) and reconnecting the heating element.
Patent DE-2932723-A1 (DE)
Title: Two=part optical conductor clamp for forming spliced junction - in which each part has clamping element pivoted through right angle into joining position
Inventor: LIERTZ HEINRICH DR ING
IPC: G02B6/255
Filed: 1979-08-13
Abstract: The clamp has a guide groove (8,8') in each part receiving an optical conductor end, with the clamping element (2,2') rotated about an axis lying along the line joining the two guide grooves (8,8') from a position in which the optical conductor is split into the joining position. Each clamping element (2,2') is in two parts (3,4;3',4') separated by a transverse slot (10.10') one part (3,3') gripping the outer sheath of the optical conductor and the other part (4,4') the stripped optical fibre (6,6'). Each part of the clamp is mounted on a separate carrier plate (1,1') one of which is axially adjustable.
Patent DE-2933299-A1 (DE)
Title: Sports racquet with variable weight - has axially displaceable weights in handle for infinite adjustment
Inventor: REHM RUPERT
IPC: A63B60/02
Filed: 1979-08-17
Abstract: The tennis racquet is fitted with weights (1) of any size which are housed in the handle. The weights are designed for axial displacement so that the centre of gravity can be adjusted to individual requirements. The handle (2) is hollow, with the weight (1) sliding inside it. The weight may consist of a cylindrical sleeve surrounding a central rod (3). There may be a screw or nut on the rod to fix the weight in the desired position. The rod may be free at the end nearest the strings of the racquet and its other end is held in a plug in the end of the handle.