baber/WOPTO huggingface dataset:
Patent GB-2038128-A (GB)
Title: Two-stage field-effect transistor amplifier integrated circuit arrangement
IPC: H03K17/687
Filed: 1979-12-21
Abstract: Two-stage field-effect amplifier integrated circuit arrangements, particularly for use as respective driving amplifiers for the word lines of a semiconductor store, comprising an input stage formed by the series connection of a switching transistor (T1) of the enhancement type controlled from a signal input terminal 1, and a passive load resistor formed by a transistor (T2) of the depletion type connected as a resistor, the output 3 of this input stage being connected to control a switching transistor (T3) of the enhancement type in an output stage formed by the transistor (T3) and a load circuit formed by a transistor (T4) of the depletion type which is directly controlled from the amplifier input terminal (1), to effectively shorten the overall switching time. <IMAGE>
Patent GB-2043854-A (GB)
Title: Waste fluid combustion method
IPC: F23G7/04
Filed: 1980-02-07
Abstract: A waste fluid containing nitrogen compounds is combusted in an incinerator having cylindrical primary and secondary combustion chambers connected in series by a venturi throat member. The waste fluid is combusted in the primary combustion chamber at a temperature of at least 1200 DEG  C. while injecting air into the primary combustion chamber in a direction tangential to the inner periphery thereof so that the combustion gas forms a vortex pattern therein. The whirling combustion gas containing nitrogen oxides is caused to pass through the venturi throat into which a gas or liquid containing a compound having a nitrogen-hydrogen bond is injected for mixing with the combustion gas and the mixture is combusted in the secondary combustion chamber at a temperature of between 850 DEG  and 1150 DEG C. The nitrogen oxides produced in the primary combustion chamber are reduced by reaction with the nitrogen-hydrogen bond-containing compound so that the exhaust gas from the secondary combustion chamber has a low content of nitrogen oxides.
Patent GB-2069986-A (GB)
Title: Improvements in the hydrometallurgical recovery of metal values
IPC: C22B23/00
Filed: 1980-02-21
Abstract: Recovery of metal values (e.g. Ni, Co, Cu, Mn) from a metal bearing source comprising subjecting said metal bearing source to a reductive roast in a reducing zone (2) in contact with at least one additive (e.g. HCl, metal halide, SO2 H2S), cooling the reduced metal bearing source, extracting the cooled reduced metal bearing source, and recovering the resultant metal value, includes the step of utilizing a fresh metal bearing source feed as a scrubbing material in a scrubbing zone (7) to dry scrub the off-gas stream from said reducing zone to remove additives present in said stream. <IMAGE>
Patent GB-2046863-A (GB)
Title: Clutch release device
IPC: F16D23/14
Filed: 1980-03-27
Abstract: A clutch release device is provided in which contact-free displacement of a rotating displaceably mounted member along the axis of rotation thereof can take place. A rotating member (5) which engages diaphragm string tongues (1) is axially displaced upon axial movement of a non-rotatable member (9) by a release fork (13), the displacing force being provided by mutual repulsion of magnets (15, 17) on the members (5, 9) which also limits the approach of the two members towards each other. In this manner wear between rotary parts is obviated and noise is reduced. In another embodiment, energisation of an electromagnet on the non- rotatable member attracts a soft iron rotatable member bur axial displacement of the latter member is limited by a stop co-operating with the diaphragm spring tongues engaged with the rotatable member. <IMAGE>
Patent GB-2051432-A (GB)
Title: Power supply circuits
IPC: H02J7/02
Filed: 1980-05-23
Abstract: A push-pull inverter circuit, particularly suitable for use as a battery charger, employs a feedback means operable to regulate transistor switching frequency and oscillation in accordance with the magnitude of the output. This feedback means, preferably providing electrical isolation from the inverter circuit output, may comprise a variable impedance means utilized with a saturable core transformer for providing drive current to the transistors. Voltage developed across the impedance means as a result of transistor drive current determines the transformer saturation time and hence the transistor switching frequency. A transformer means having a significant magnetic flux leakage path between its primary and secondary windings is employed in a power supply to limit the transformer means current.   <IMAGE>
Patent GB-2055919-A (GB)
Title: Flameproofing of Textiles
IPC: D06M15/431
Filed: 1980-06-20
Abstract: A cellulosic textile is flameproofed by impregnating it with a solution containing a tetrakis hydroxymethyl phosphonium (THP) salt, a carbamic acid derivative and a difunctionai nitrogen-containing reactant compound such as dihydroxy dimethylol ethylene urea then heat- curing the impregnated textile which contains 15-30% by weight THP.
Patent GB-2051812-A (GB)
Title: Indolizine derivatives
IPC: C07D471/04
Filed: 1980-07-04
Abstract: Indolizine derivatives represented by the general formula:   <IMAGE> (wherein R represents a straight- or branched-chain alkyl radical having from 1 to 8 carbon atoms, or a phenyl group optionally substituted by one or two substituents, which may be the same or different, selected from halogen atoms, for example fluorine, chlorine or bromine, and alkyl and alkoxy groups, for example methyl or methoxy, and X1, X2 and X3, which may be the same or different, each represent hydrogen, chlorine, bromine or methoxy with the proviso that X1, X2 and X3 are not all hydrogen) possess an inhibitory activity with respect to the action of xanthine oxidase and of adenosine deaminase as well as uricosuric action and can be used in the treatment of disturbances consequent upon an excess of uric acid and upon disorders of the immune system. They may also be useful as antiparasitic agents.
Patent GB-2057801-A (GB)
Title: Improvements in or relating to strain gauges
IPC: G01B11/16
Filed: 1980-07-28
Abstract: The present invention provides a strain gauge for measuring the elongation of a body and includes first and second members (1,16) arranged for mounting on the body, with an end portion of each member overlapping the other member, the first member (1) having on its end portion an optically coded surface (5) comprising representations of data bits in rows and columns thereon, the second member (16) carrying on its end portion a set of read-out elements comprising, for example, an array (7) of photodetectors extending in a row-wise direction with respect to the rows of the coded surface, guide means (14) for guiding the read-out elements over the coded surface in the column direction. In use, the read- out elements produce a digital signal corresponding to the elongation of the body. <IMAGE>
Patent GB-2057730-A (GB)
Title: Data processing systems incorporating cache stores
IPC: G06F12/0891
Filed: 1978-11-24
Abstract: A data processing system includes a plurality of system units connected to a system bus 5. The system units include a central processing unit (CPU) 2, a main memory 3 and a high speed cache system 1 incorporating a data buffer, and a directory storing the main memory addresses of the words in the data buffer. During overall system initialization apparatus in cache system 1 effects the transfer of information from the main memory 3 to the data buffer in the cache system 1 to load all address locations of the data buffer, the appropriate main memory addresses being loaded in the directory. The transfer of information from the main memory 3 to the data buffer starts from the lowest order address in main memory 3 and continues from successive address locations until the data buffer is full. Then the cache system 1 is tested by the central processing unit 2 in response to test and verification instructions from the main memory 3. <IMAGE>
Patent GB-2081953-A (GB)
Title: Adjustable price display signs
IPC: G09F3/20
Filed: 1980-08-14
Abstract: An adjustable price display for displaying prices in automobile service stations comprises one or more display areas 16, 18 in which information is presented by means of adjustable information strips. The strips are retained and guided on a support panel 11 in the display areas by means of flanges 14, 15, 17, 19 integrally formed from and spaced along the support panel and, in use, are fixed in selected positions by means of a locking device L. The strips may be made of self-coiling tape or formed as an endless belt or a tape rolled on to a pair of spools. <IMAGE>
Patent GB-2057944-A (GB)
Title: Apparatus for smoothing deformed sheet
IPC: B21D1/06
Filed: 1980-08-27
Abstract: Apparatus for smoothing deformed sheet (2), especially of coachwork, has a transformer (6) a return electrode 33 and an interchangeable deforming electrode (18, 18a, 18b) with contact faces (20, 20a, 20b; 33, 33a), which can be placed on the sheet (2). The deforming electrode (18, 18a, 18b) is under the influence of a spring (14) so that it can bring a force to bear on the sheet (2). The invention consists in the return line electrode (24) surrounding the deforming electrode (18, 18a, 18b), the deforming electrode (18, 18a, 18b) being displaceable from a rest position against the increasing force of the spring (14) to behind the contact face (33, 33a) of the return line electrode (24) and the relative spacing of the contact faces (20, 20a, 20b; 33, 33a) in the rest position of the deforming electrode (18, 18a, 18b) in the direction of the spring action is controllably adjustable. <IMAGE>
Patent GB-2061045-A (GB)
Title: Nonvolatile static random access memory system
IPC: H01L27/02
Filed: 1980-08-28
Abstract: Nonvolatile, integrated metal- oxide semiconductor random access memory systems utilizing integrated floating gate circuit elements, and integrated means for the generation and control of high voltages in the provision of self-contained, nonvolatile electrically- alterable static RAM circuit systems. <IMAGE>
Patent GB-2059048-A (GB)
Title: Hollow heat exchanger tile
IPC: F24S10/50
Filed: 1980-09-08
Abstract: A hollow heat exchanger tile (T) made of synthetic plastics material has a liquid inlet (5) and a liquid outlet (6) at peripherally spaced edge parts of a chamber (3) having a floor which rises towards the centre of the tile and is shaped to promote liquid flow in curved path between the inlet and the outlet. The tile is characterised in that the radially inward part of the chamber has at least one flared-ended hollow column (4) extending between the top and bottom surfaces of the tile and that one or other of the inlet or the outlet of the tile is formed by a tubular projection (6) from the edge of the tile. <IMAGE>
Patent GB-2063038-A (GB)
Title: Combine harvesters
IPC: A01F12/44
Filed: 1980-11-12
Abstract: A combine harvester comprises a threshing mechanism 17 extending transversely of the machine and having a threshing rotor 18 cooperable with a threshing concave 19 to thresh a layer of crop material fed there between, a separating mechanism 41 having a separator rotor 63 cooperable with a separator housing 62 formed in part by separator concave means 81 and disposed parallel to the threshing mechanism, the separator mechanism 41 being arranged spirally to convey portions of the layer of crop material received from the threshing mechanism 17 towards its respective ends whilst subjecting the crop material to a separating action. A rotary member 42 is disposed between the threshing mechanism 17 and the separating mechanism 41 and has beater means 47 operable to beat the crop material and to orient the crop material in the layer generally lengthwise in the direction of movement of the layer from the threshing mechanism 17. Crop layer dividing means 71 Fig. 5 are operable to divide the layer of crop material received from the threshing mechanism 17 via the rotary member 42 into said portions prior to the spiral movement thereof in the separating mechanism 41. The crop dividing means 71 are in the form of blades arranged in pairs on the circumference of the separator rotor 63, the blades of each pair being defining a V having its apex facing in the direction of rotation of the rotor 63 with the apices of adjacent pairs being staggered transversely of the machine so as to lie on opposite sides of the fore-and-aft centreline of the rotor 63. <IMAGE>
Patent GB-2065309-A (GB)
Title: Determining quantity of mixture constituents
IPC: G01N27/49
Filed: 1980-11-19
Abstract: A method and an apparatus for determining the quantity of a constituent in a mixture, preferably a gaseous mixture are provided. The method is carried out with the mixture in an electrochemical cell which has a measuring electrode (2), a reference electrode (3) and a counter electrode (4). A predetermined direct voltage with an alternating component is applied to the measuring electrode relative to the reference electrode and the D.C. current at the measuring electrode is measured to determine the quantity of the constituent in the mixture. The apparatus includes an electrochemical cell having the foregoing electrodes, the measuring electrode including a catalyst in a plastics material on its surface and acting as a gas diffusion electrode, an alternating voltage source and means 6 for measuring the D.C. current at the measuring electrode. <IMAGE>
Patent GB-2072140-A (GB)
Title: Forming a plurality of coils of wire
IPC: H01F5/04
Filed: 1981-01-23
Abstract: An arrangement whereby a plurality of coils may be simultaneously formed on a common coil form and thereafter that form sliced or sectioned to yield individual coils is disclosed employing an elongated hollow coil form of insulating material with a plurality of lateral surface openings spaced therealong and extending in the direction of elongation. A conductive strip extends along the surface of the coil form and has a plurality of conductive tabs extending from the strip and through corresponding coil form openings into the hollow interior of the form. A plurality of wire ends are attached to the conductive strip and the coil form rotated to generate the plurality of coils thereon. A second conductive strip may be placed along the formed coils for terminating the other coil lead so that when individual coils are severed from the form, convenient terminals connected to the beginning and terminus of the coil are available for connecting the coil in circuit with other components.
Patent GB-2069721-A (GB)
Title: Control system for fuel supply in an i.c. engine
IPC: F02D41/30
Filed: 1981-02-02
Abstract: A control system for the fuel pump of an internal combustion engine includes a fuel determining network 23 which controls the conduction of an output transistor 15 by way of an input transistor 21. A transducer 24 provides an operator demand signal to the network. In the event of failure of the network 23, or the stabilized supply on terminals 22, 26, the transducer 24 is energised through resistor 27 so that the supply of base circuit to the output darlington pair transistor 15 is maintained. The output transistor 15 controls the flow of current in the winding 14 of an actuator for the control member of the fuel pump. The value of resistor 27 is chosen to limit the current so that the actuator movement only allows a safe flow of fuel. <IMAGE>
Patent GB-2093468-A (GB)
Title: Polyphenylenesulphide Sheet- like Material
IPC: C08G75/0254
Filed: 1981-02-25
Abstract: A sheet-like material comprises a composition mainly consisting of high molecular weight poly p-phenylene- sulfide, characterised in that:   a) the amount of extract thereof through chloroform extraction is less than 1.5 weight % of the total weight prior to said extraction, and   b)   i. the index of crystallinity thereof is in the range above 2.5 and below 8.0, ii. the size of crystallite thereof is in the range above 50 ANGSTROM  and below 100 ANGSTROM , and iii. orientation factors thereof measured in three directions of through, Edge and End are respectively above 0.70, as measured by wide angle X-ray diffraction method.     The sheet-like material may be laminated to a thin metallic film to produce a printed circuit board.
Patent GB-2096481-A (GB)
Title: Catalyst for the production of aromatic hydrocarbons and process for its preparation
IPC: B01J29/78
Filed: 1981-04-13
Abstract: A monofunctional catalyst for the dehydrocyclization of paraffins, characterised in that it contains:  0.1 to 1.5% of platinum  0.1 to 1.5% of rhenium incorporated in the form of carbonyl a small proportion of sulphur introduced by a sulphur compound which is reducible or decomposable by hydrogen, such that the ratio x of the number of sulphur atoms to the number of platinum and rhenium atoms deposited on the catalyst is between 0.05 and 0.6, the support being a zeolitic crystalline aluminosilicate compensated to more than 90% by alkaline cations, having a pore diameter larger than 6.5  ANGSTROM .
Patent GB-2098733-A (GB)
Title: Automatic noise measuring equipment
IPC: G01H3/14
Filed: 1981-05-20
Abstract: An automatic noise dosimeter is described which totals exposure to varying noise levels and can initiate an alarm e.g. if the maximum daily permitted exposure is reached. A microphone (1) at the point where it is desired to monitor exposure has its output when greater than a predetermined threshold fed to a number of comparator circuits (Comp 1-7) which correspond to regions of increasing noise level. Using suitable circuitry (18), the total exposure at each level is calculated and summed on a continuous real time basis and the net noise dosage can be continuously displayed (at 14). <IMAGE>
Patent GB-2083974-A (GB)
Title: Moving coil loudspeaker
IPC: H04R3/00
Filed: 1981-09-04
Abstract: The bass response of a moving coil loudspeaker is extended by superimposing on the acoustic signals supplied to the voice coil (6) a compensation signal derived from photo-electric sensing of the displacement of the voice coil from its rest position, utilising reflection of light from a diffusely reflecting surface of the voice coil former (2) which has varying characteristics in the direction of coil displacement. The compensation signals are applied as positive feedback signals to the voice coil to produce forces on the latter which correct for the non-linearity of the voice coil displacements due, for example, to compression effects of the loudspeaker diaphragm oscillation. Since the compensation signal is zero in the rest position of the coil the additional power dissipation introduced by the compensation signals is minimal. <IMAGE>
Patent GB-2087570-A (GB)
Title: Fluid flow sensors
IPC: G01F1/28
Filed: 1981-09-28
Abstract: A fluid flow sensor comprises a flange 1 defining an orifice 3, a flap 11 mounted on a shaft 13 and means for connecting or associating the flap with a fluid flow alarm or indicating device, wherein the flap has a smaller surface area than that of the orifice and is biassed towards its rest position magnetically. Flow in either direction can be sensed. The alarm or indicating device may include a microswitch or inductive proximity switch. <IMAGE>
Patent GB-2088416-A (GB)
Title: Improvements in calender ironing machines
IPC: D06F65/06
Filed: 1981-11-03
Abstract: A multi-roll calender ironing machine 1 for laundry flatwork comprises a plurality of heated ironing beds 2, each bed defining a concave ironing surface 3 which cooperates with a padded ironing roller 4, whereby a laundry workpiece 5 is fed into the nip between the roller 4 and ironing surface 3 in order to perform the ironing operation. Pneumatic actuating cylinders 10 urge the ironing beds 2 towards the rollers in an adjustable manner so as to vary contact roller to ironing surface pressure. Micro-switch units 11 determine the presence or absence of laundry workpiece en route to the ironing roller and operate the actuating cylinders whereby a relatively high roller to concave surface pressure is provided when a workpiece is present and a relatively low roller to concave surface pressure is provided when a workpiece is absent. <IMAGE>
Patent GB-2093923-A (GB)
Title: Air cooled gas turbine vane structure
IPC: F01D5/18
Filed: 1982-02-12
Abstract: A gas turbine is provided with first stage vane structure 22 having a vane 18 and inner and outer shrouds 24, 26. The vane is formed from a spar 38 which is covered by a shell 40 and has inner channels 28, 30, 32 which carry coolant for cooling the shell outer surface. A limited amount of the coolant is discharged to the hot gas path through the vane trailing edge 36 while most is directed to channels within the shrouds for coolant action and ultimate discharge to the hot gas path through openings in the shrouds. <IMAGE>
Patent GB-2099843-A (GB)
Title: Partial oxidation process
IPC: C10J3/46
Filed: 1982-04-27
Abstract: A partial oxidation process and control system for continuously producing synthesis gas, fuel gas or reducing gas in which one process fuel is replaced by a different fuel without shutting down or depressurizing the gas generator. The fuel may comprise slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbonaceous fuels. Suitable burners for introducing the feedstreams into the gas generator comprise a central conduit means radially spaced from a concentric coaxial outer conduit having a downstream exit nozzle, and providing a coaxial annular passage means therebetween. <IMAGE>
Patent GB-2104348-A (GB)
Title: Improvements in or relating to radio communication data systems
Inventor: GERARD ROGER EDWIN JOHN
IPC: H04B17/00
Filed: 1982-06-24
Abstract: In a radio communication system a receiving terminal has a number of traffic receivers, each of which can respectively receive a different communication channel. Each channel is capable of receiving data signals, and in order to assess the quality of reception of a channel in the absence of a received data signal, a locally generated test signal is combined with the output of an aerial which is common to all traffic receivers, and the combined signal is injected into a test receiver which is tuned to each radio channel in turn. The test signal is extracted from the test receiver and after demodulation is compared directly with the locally generated data signal so that a data error can be established for each channel. Thus when a new communication link is to be opened, it can be allocated a channel having an acceptably good reception characteristic. <IMAGE>
Patent GB-2104558-A (GB)
Title: A retention band
Inventor: DELANNOY ROBERT G
IPC: D04B21/18
Filed: 1982-07-06
Abstract: The band has a reticulated structure and is elastic in all directions. It is made on needle knitting looms of the Raschel type. Chains are formed on all needles of the loom by providing longitudinally a combination of chains of reticulated inextensible yarns (1) and of elastic warp threads (2) which are not reticulated but are interwoven with the inextensible chains. Elastic yarns (3) which are covered with an inextensible yarn are used transversely and extend over at least two chains which are connected and assembled by these transverse yarns. The elastic warp threads (2) are woven in a stretched condition so that a retraction of the inextensible chains will take place after manufacture to give an embossed appearance to the band. <IMAGE>
Patent GB-2108212-A (GB)
Title: Combined fluid pressure actuated fuel and oil pump
Inventor: WALSWORTH FRANK J
IPC: F04B7/00
Filed: 1982-09-24
Abstract: A combined fuel and oil pump 11 comprises a reciprocally movable member 39 for pumping fuel in response to member reciprocation, a reciprocally movable element 91 for pumping oil in response to element reciprocation, and a fluid pressure actuated motor 13 connected to the member 39 and to the element 91 and responsive to a source of alternating relatively high and low pressures for effecting reciprocation of the member 39 and the element at a frequency less than the frequency of the alternation of the relatively high and low pressures. <IMAGE>