baber/WOPTO huggingface dataset:
Patent GB-2003863-A (GB)
Title: Potassium clavulanate production
IPC: C07D503/00
Filed: 1978-08-15
Abstract: The present invention provides a process for the preparation of potassium clavulanate which process comprises contacting a concentrated solution of lithium clavulanate with a concentrated solution of potassium fluoride, potassium orthophosphate, potassium metaphosphate potassium carbonate or potassium bicarbonate, separating off the resulting precipitated lithium fluoride, lithium orthophosphate, lithium metaphosphate or lithium carbonate and thereafter recovering the potassium clavulanate from solution.
Patent GB-2006031-A (GB)
Title: Safety fuel degrading centrifuge
IPC: F02C7/224
Filed: 1978-09-18
Abstract: A vaned rotor 10 is arranged in radially concentric array with a vaned stator 11, whereby rotation of the rotor will cause safety fuel pumped through the apparatus to be subjected to sufficient shear and local acceleration to be degraded to a state acceptable to engines and their control apparatus. Preferably the number of vanes on the stator differs by one from the number of vanes on the rotor. The stator and rotor unit may be incorporated into a fuel supply apparatus of an aircraft. The unit may form part of a combined pump and degrader unit. <IMAGE>
Patent GB-2006291-A (GB)
Title: >Straightening Distortions in Textile Webs
IPC: D06C3/06
Filed: 1978-09-27
Abstract: In a device for straightening distortions in the weft threads of a woven web, or in the courses of a knitted web immediately prior to the web entering a tenter frame for example, the web 10 travels in contact with an arched rod 20 which extends across the web and is pivotally carried by two vertically pivotal arms 15. In use, in order to straighten weft threads or courses, and dependent upon the nature of the distortions, the rod 20 is swung downwards relative to the arms so as to engage the web intermediate its edges and to deflect the web downwards, (Fig. 1b), or the arms are moved downwards to engage only end portions of the rod with the web, (Fig. 1c), or only one arm is swung downwards, (Fig. 1d). In a modification, two arched rods 20 are provided and are movable in parallel and synchronously, the web 10 running between the rods, (Fig. 3). Any distortions may be measured optically by apparatus 18. <IMAGE>
Patent GB-2014059-A (GB)
Title: Dust Respirator
IPC: A41D13/11
Filed: 1979-01-22
Abstract: A filtering face piece dust respirator consists of a cup (1) of multi- layer material consisting of a filtering layer sandwiched between porous supporting layers, the filtering layer being of widely spaced fibres of a dielectric, eg electret, material such as polypropylene, whereby the filtering action is not a mechanical action but is due to an electric charge formed on the dielectric material. <IMAGE>
Patent GB-2014673-A (GB)
Title: Spring for a Parking Brake in an Internal Expanding Shoe Brake Assembly
IPC: F16D65/08
Filed: 1979-01-23
Abstract: A spring strip (1) for acting between a thrust element (5) of a parking brake facility in an internal expanding shoe brake assembly is of unsymmetrical construction with on end (9) of one arm (22) laterally spaced claws (26) for engaging shoulders on the thrust element (5), and on the end of a longer arm (21) projecting parts (13, 25) defining between them a channel for receiving a projection (7) of brake shoe (2). The thrust element passes between the claws (26) and through an aperture (24) defined by projecting part (25) and by an oppositely directed projecting part (17). The arms (21, 22) are bent back towards each other to form a restriction (27), and the arms are interconnected by an apex portion (23) of reduced width. <IMAGE>
Patent GB-2014334-A (GB)
Title: Vending Machine Circuit
IPC: G07F13/06
Filed: 1979-02-06
Abstract: This invention relates to a control circuit for a vending machine conveyer which conveyer is adapted to move a carriage between a plurality of stations which circuit is characterised by switch means for controlling a drive motor for said conveyer, sense means for detecting movement of said conveyer and adapted to generate one or more signals in relation to movement of the conveyor to present the carriage at a station, selection means for receipt of instructions to control the conveyer movement, and counter means adapted to co-operate with said sense means for controlling operation of said switch means to present said carriage at stations indicated by said selection means. <IMAGE>
Patent GB-2016505-A (GB)
Title: Water-soluble anthraquinone dyestuffs
IPC: D06P3/06
Filed: 1979-03-12
Abstract: Anthraquinone dyestuffs which in the form of the free acid correspond to the formula   <IMAGE>  wherein R denotes C1-C4-alkyl or C5-C6-cycloalkyl which is optionally monosubstituted to trisubstituted by C1-C4 alkyl,  m denotes the numbers 0 to 1,  Y denotes hydrogen, halogen, hydroxyl or a sulphonic acid group and Z denotes hydrogen or halogen, and Y and m are to be so chosen that the dyestuff contains at least one sulphonic acid group, and  R1 represents hydrogen, C1-C4-alkyl, C1- C4-alkoxy or halogen, processes for their preparation, their use for dyeing and printing polymeric materials containing amide groups and the materials dyed or printed in this way.
Patent GB-2021865-A (GB)
Title: Thermal switch
IPC: H01H37/76
Filed: 1979-03-27
Abstract: A thermal switch comprises a conductive casing (2) with one power lead (10) extending into and insulated from one end of the casing (2) and a second power lead (6) extending into the other end (2b) of the casing (2) and making a low resistance permanent connection therewith. The first power lead (10) is bifurcated at its inner end to form outwardly inclining arms (10a) which, in the normally closed embodiment of the switch are pressed against an insulating backing member (13) so that the arms (10a) expand outwardly into a low resistance contact with an inner conductive surface of the casing (2). The backing member (13) forms part of a spring- urged sandwich of elements comprising a pellet (16) of meltable material, a first partially compressed spring (20) for taking up any play in the sandwich of elements, the backing member (13), arm-deforming means (24) positioned contiguous to and adapted to collapse the arms (10a) when released to do so, and a second fully compressed spring (26) held fully compressed by the first spring (20) and applying a force acting on the arm deforming means (24) to force it into an arm-collapsing position when the pellet (16) melts. <IMAGE>
Patent GB-2045939-A (GB)
Title: Gas leak detection and shut-off system
IPC: G01M3/20
Filed: 1979-03-30
Abstract: An electronic system for detecting gas leaks and automatically operating a valve to cut-off the gas flow when a leak reaches a predetermined level comprises a gas sensor S, which has reduced resistance in the presence of a particular gas, is connected to direct current amplifier AC which triggers SCR memory M when the sensor resistance is so reduced. After triggering, the memory energises direct current power amplifier AP, and continues to do so until cleared by push-button P. When energised, amplifier AP shuts off the source of the gas by closing valve EV and also sounds an audible alarm by means of oscillator O. Visual indication of individual leaks is provided by LED D2. <IMAGE>
Patent GB-2023341-A (GB)
Title: Improvements in or relating to monolithic integrated semiconductor digital circuit modules
IPC: H04N7/00
Filed: 1979-06-05
Abstract: The development of monolithic integrated semiconductor circuits has now advanced to a point at which the production of the housing which is to accommodate the circuit, together with the provision of the requisite terminal electrodes, decisively influences the price of the overall arrangement. Therefore it is desirable to reduce the number of external terminals required for the semiconductor body, and thus simplify the housing. The invention provides that at least one terminal A is provided on the semiconductor body in which the integrated circuit is formed is permanently connected to act both as a signal input for a first functional circuit stage and as a signal output for a second function circuit stage of the integrated circuit, and provision is made for the selection of the particular mode of operation to be controlled via an external auxiliary circuit connected to the terminal (A). Various embodiments are described. The two functional circuit stages may each possess a shift register (SR2 and SR1) as signal input and as signal output. <IMAGE>
Patent GB-2022539-A (GB)
Title: Conveyor table
IPC: B65B13/18
Filed: 1979-06-08
Abstract: A conveyor table e.g. in a package binding machine has a conveyor track or tracks composed of a plurality of conveyor belts (21) arranged side-by- side. The drive shaft arranged at one side of the track is correspondingly composed of individual sections (12) which have complementary profiles at respective ends for coupling one shaft section to an adjacent section. The ends of each shaft section are preferably encased inoperable bearing shells (16, 18). <IMAGE>
Patent GB-2051948-A (GB)
Title: Repetitive Gas Ignition Means
IPC: F23Q3/00
Filed: 1979-07-02
Abstract: A capacitor C is charged through diode D2 from an AC supply and discharged through an SCR switch Q into primary P of transformer T of which the secondaries S are connected to spark gaps G. The switch Q is triggered by the voltage across capacitor C1 charged through R1 which forms a time constant circuit providing repetitive discharge of C. To ensure that the delay before initial firing is not substantially greater than the interval between successive firings, D1 provides for C1 to be fully discharged at each cycle. <IMAGE>
Patent GB-2052726-A (GB)
Title: Thermally insulated vessels
IPC: A47J41/00
Filed: 1979-07-03
Abstract: A thermally insulated vessel, in particular an ice bucket, comprises a transparent plastics outer container 2, 3 and an inner container 8 (e.g. of transparent translucent or opaque plastics material) nested therein. Disposed between the containers are foamed plastics material 15 (e.g. polyurethane) and sheet material 13, 13a (e.g. paper or card) carrying a pattern or design such that the pattern or design is visible through the outer container. Polymeric film material 14 (e.g. of polyethylene) is provided between the sheet material 13, 13a and the foamed plastics material 15 to protect the sheet material when a liquid capable of foaming to form the solid foamed material 15 is introduced. The container may have handles 6 formed therein. <IMAGE>
Patent GB-2050320-A (GB)
Title: Closure for container
IPC: B65D41/18
Filed: 1979-08-01
Abstract: A closure 2 for a container 1 having a cylindrical neck comprises a cap from which extends a cylindrical inner projection 4 for insertion into the neck to effect a seal therewith and a concentric open-ended outer skirt 5, in which in the container closing position, at least one continuous circumferential sealing member 6 is arranged between the neck inner surface and the outer surface of the inner projection 4. The outer skirt 5 may carry an internal screw thread (12), Figure 2 (not shown). The sealing member 6 is preferably integral with the cap. <IMAGE>
Patent GB-2037960-A (GB)
Title: Methods of monitoring a blast furnace
IPC: C21B7/24
Filed: 1979-09-19
Abstract: A method of monitoring the operation of a blast furnace. The distance x, y to the surface of the glowing mass located in the raceway 12 formed in front of a tuyere 6 is measured by a distance meter 13 placed at an inspection window 11 located in or near the tuyere 6. The distance is measured for a plurality of the tuyeres of the furnace, and if any of the measured distances deviates more than a predetermined value from the mean value for the measured distances, the deviation indicates a fault in the furnace process and that a correction is required. <IMAGE>
Patent GB-2034812-A (GB)
Title: Fuel injection nozzles
IPC: F02M61/16
Filed: 1979-09-21
Abstract: A nozzle 12 includes a valve assembly 19 located within a chamber defined in a body part 15, 16 to which fuel is supplied through an inlet 21. The wall 17 of the chamber is resilient whereby during the initial delivery of fuel to the injection nozzle the wall deflects to store fuel whereby the initial rate of flow of fuel to the engine will be reduced. The valve (26), Fig. 2 (not shown), in the assembly 19 is of the outwardly opening type. <IMAGE>
Patent GB-2065338-A (GB)
Title: Improvements in and relating to a metronome device
IPC: G04F5/02
Filed: 1979-11-29
Abstract: An electronic timepiece having time of day and stop-watch functions, is operable also as a metronome, e.g. for pace setting of repetitive movements. The timepiece comprises a crystal controlled oscillator 12 and frequency divider 14. Timing pulses therefrom are counted in a counter 16 and a sound emitter 30 is actuated to produce a pulse each time the counter 16 has counted to a selectable pre-set number, the counter then being reset automatically so as to repeat its counting. The number pre-set determines the sound pulse rate and can be entered via a keyboard 32. Preferably a memory 26 is provided so that the metronome feature can be arranged to give sound pulses at one rate for one period of time followed by sound pulses at a different rate for another period of time. The timepiece also preferably includes a calculator function so that total time, total number of strides, and when fed with stride length, total distance run during an exercise can be computed. <IMAGE>
Patent GB-2064307-A (GB)
Title: Headlamp washer assembly
IPC: B60S1/60
Filed: 1979-12-05
Abstract: A headlamp washing assembly comprises spray nozzles (16), a wash liquid reservoir (14), metering conduits (18), a gas source (22), a tank (20) for storing a predetermined volume of gas, and a control valve (24) which, in a first position provides for charging of the storage tank (20) with gas from source (22) while simultaneously charging the metering conduits (18) with liquid from reservoir (14), and, in a second position provides for subjecting the liquid in the metering conduits to pressurised gas from the tank to force the liquid through the conduits and out of the nozzles. The valve may be actuated by means of a solenoid when the headlamps are turned on or automatically in dependence, on the windscreen washer control system. A pressure switch may be located in tank (20) to actuate the valve when a predetermined pressure is reached. A flow-regulating valve may be located beneath the wash liquid reservoir (14). <IMAGE>
Patent GB-2044279-A (GB)
Title: Polyurethaneureas having adhesive properties
IPC: C08J3/16
Filed: 1980-02-12
Abstract: A process for preparing a polyurethaneurea, which comprises   (a) forming a prepolymer, containing from 10 to 40 mole percent NCO groups, from a first diol, having an average molecular weight of between 500 and 5000; a diisocyanate; a second diol, having melting point-lowering characteristics and a molecular weight of from 60 to 500; a third diol, which is unbranched, free of ether groups and has a molecular weight of from 62 to 500; and 0 to 5 mole percent, based on the NCO groups in all the prepolymer- forming components, of a monofunctional compound containing one active hydrogen atom; (b) emulsifying the prepolymer with an emulsifying agent in hot water at 70 to 99 DEG C; and (c) treating the hot-water emulsified prepolymer with cold water at 15 to 25 DEG C. The product may be reacted with a diamine. The products can have low melting points, e.g. below 200 DEG C, making them suitable for use in fusible interlinings.
Patent GB-2052863-A (GB)
Title: Capacitor lead connection
IPC: H01G13/00
Filed: 1980-02-14
Abstract: For the purposes of making an electrical lead connection to a small diameter wound capacitor, a sheet 30 of metallic foil is inserted between the metallized dielectric strips 12, 14 while the section is being wound, the metallic foil contacting one of the metallised surfaces. The foil extends outwardly from the end of the capacitor section. The electrically conductive "tube" which results can be attached directly to an electrical lead 34. <IMAGE>
Patent GB-2072043-A (GB)
Title: Centrifugal impact rock-crusher drive-shaft seal
IPC: B02C13/18
Filed: 1980-03-13
Abstract: In a centrifugal impact rock crusher, having impellers to throw material against peripheral anvils, an oil seal 40 at the upper end of the pedestal 16, in which the drive shaft 12 is rotatably journaled, is located in a holder 32 having a grease passageway 48 which opens into a cavity above the oil seal whereby grease can be injected from a grease line 52 to provide a renewable grease barrier protecting the oil seal from abrasive rock particles. To assist in retaining the grease the cavity is fitted with an absorbent gasket 42 and is encircled by an upstanding annular sleeve 44 mating with an annular groove 46 in the hub 11 of a rotary table carried by the drive shaft 12. <IMAGE>
Patent GB-2047430-A (GB)
Title: Machine tool
IPC: G05B19/416
Filed: 1980-03-18
Abstract: A machine tool includes a numeric control unit which controls the operation of a drive motor 17 which effects relative movement of two parts of the machine tool. The control unit includes a store 27 which provides control signals to a comparator 26 which also receive feedback signals from a transducer 28. The signal provided by the transducer is modified by an electronic circuit 31 which is supplied with correction signals by an error calculation unit 30. A memory 32 is provided in which is stored information relative to machine tool errors and also machine operating conditions. Based on the signals from the transducer and the information in the memory the error calculation unit adjusts the signal provided by the transducer to effect correction for machine errors and the operating conditions of the machine tool. <IMAGE>
Patent GB-2052670-A (GB)
Title: Friction Clutch Release Bearing Support
IPC: F16D23/14
Filed: 1980-05-22
Abstract: A friction clutch release bearing (1) is suspended by radial straps (19) or springs at least one of which is connected to the clutch housing by a screw (31) permitting radial adjustment of the bearing. <IMAGE>
Patent GB-2054177-A (GB)
Title: Composite information Recording Apparatus
IPC: G03G15/04
Filed: 1980-05-30
Abstract: Electrical signal information from a keyboard 41 and an image obtained by scanning an original on a copy plate 21 are put together in a desired form at (BAC) to form a composite image when electrophotographically recorded. A C.R.T. screen 40a displays the keyboard input information and includes means for producing cursor spots M(P1), M(P2) to indicate selected edge positions on said screen. Display elements 42 extend along an edge of the copy plate 21 and are connected so that when a cursor spot is produced in a particular position on the screen 40a the element 42 in the corresponding position adjacent the copy plate 21 is energized. This enables the original to be correctly positioned. The positions of indicators SL1, SL2 adjacent the copy plate may also or alternatively be transmitted to the screen to produce a cursor spot in a corresponding position (Fig. 3, not shown). The invention facilitates composition of a composite image in a desired format since the available space for composing is indicated on one and correspondingly displayed on the other of the screen and the copy plate, whereas previously the operator had to measure or mentally estimate the relative spaces available for the different items of information destined to form the composite image. <IMAGE>
Patent GB-2053859-A (GB)
Title: Sheet feeding apparatus
IPC: G03B27/00
Filed: 1980-05-30
Abstract: An apparatus is provided, for example, for an electrophotographic copying apparatus, for feeding outwardly an uppermost sheet of a pile of sheets, e.g. under the influence of a roller, along a path extending in a substantially coplanar relationship with said uppermost sheet, the apparatus including a sheet delivery regulating protrusion (9), e.g. on a cassette (1), projecting upwardly beyond the level of said uppermost sheet, so that the leading edge of said uppermost sheet being fed outwardly will partially bear against said protrusion (9). Such apparatus avoids the use of members bearing on the top sheet, for preventing feeding of multiple sheets. <IMAGE>
Patent GB-2062772-A (GB)
Title: Fuel Pumping Apparatus
IPC: F02M59/44
Filed: 1980-10-09
Abstract: A fuel pumping apparatus includes an injection pump and means such as a throttle 26 for controlling the quantity of fuel delivered by the pump. A two speed governor 54, 55 including an operator adjustable control 49 is provided to determine the setting of said quantity control means 26. Stop means coupled to a lever 43 is provided to determine the maximum amount of fuel which can be supplied by the injection pump and this is movable from a first position in which an excess of fuel can be supplied for starting purposes to a second position in which the normal maximum amount of fuel can be supplied. The stop means is linked to the operator adjustable control 49 so that it is moved via the lever 43 to said first position when the operator adjustable control is moved to the engine idling position but is moved to said second position as the operator adjustable control is moved away from the idling position. <IMAGE>
Patent GB-2085339-A (GB)
Title: Solderable paint
IPC: B23K35/22
Filed: 1980-10-14
Abstract: An electrically conductive paint which dries or cures below 200 DEG C has a metallic content which consists solely of copper particles, the particles being dispersed in a polymeric binder together with a solvent and wetting agent. The polymeric binder may be an epoxide, methyl or ethyl cellulose, polyvinyl acetate, polyvinyl alcohol, a fluorinated rubber or acrylic copolymers including acrylamides and carboxylated acrylics. The solvent may be n- butyl acetate and the wetting agent can be triethanolamine.
Patent GB-2073556-A (GB)
Title: Sound reproduction systems
IPC: H04S3/02
Filed: 1981-02-04
Abstract: A decoder is provided for feeding an irregular array of m (being three or more) pairs of diametrically opposite loudspeakers, each loudspeaker being disposed at an equal distance r from a common reference point. The decoder incorporates a WXY circuit 10 for producing output signals W, X, Y and { jW from the input signals, and shelf filters 12, 14, 16 and 22 and high-pass filters 18, 20 and 24 for producing output signals W%, X%, Y% and {jW_i. In addition the decoder includes an amplitude matrix circuit 26 which is such that the sum of the signals S<+>i and S<{>i fed to the loudspeakers of each pair is the same for all pairs of loudspeakers, and…    S<+>i = W% + aiX% + biY% { wijW_i…    S<{>i = W% { aiX% { biY% + wijW_i… where KM =… …<IMAGE>… M being the 2 x m matrix… …<IMAGE>… K being the m x 2 matrix… …<IMAGE>… I being the 2 x 2 identity matrix, and k being a positive real constant which may be frequency dependent. …<??>A decoder is also provided for feeding a three-dimensional loudspeaker layout. …<??>Thus the outputs of the loudspeakers may be adapted to irregular positioning of the loudspeakers which may be dictated by room geometry. …<IMAGE>…
Patent GB-2103425-A (GB)
Title: Frequency multiplying transformer
Inventor: COPPO GIOVANNI
IPC: H02M5/16
Filed: 1981-03-05
Abstract: A frequency multiplying transformer, particularly for electrical discharge machining, comprising a saturable magnetic core 10 formed by a pack of laminations and having four openings 12, 14, 16, 18 with three between the openings. The three primary windings 30, 32, 34 and three secondary windings 42, 44, 46 wound around the inner branches 22, 24, 26 between the openings. The three primary windings 30, 32, 34 are in delta connection for three-phase feed and the three secondary windings 42, 44, 46 are connected in series to provide a monophase output between terminals 48, 50. The magnetic core 10 is so dimensioned that harmonics are produced having a frequency higher than the normal input frequency fed to the transformer. The core may be formed of silicon steel laminations. <IMAGE>