baber/WOPTO huggingface dataset:
Patent GB-1202120-A (GB)
Title: A method of preparing comenic acid
IPC: B24D11/06
Filed: 1968-12-12
Abstract: 1,202,120. Comenic acid. DAIICHI SEIYAKU CO. Ltd. 12 Dec., 1968 [15 Dec., 1967], No. 59231/68. Heading C2C. 5 - Hydroxy - 2 - carboxy - 4 - pyrone (comenic acid) is produced by heating an aqueous solution containing 1 to 30 grams of 2,5-diketo-gluconic acid per 100 mls. of solution at 20 to 200 C. The 2,5-diketo-gluconic acid solution used may be the liquor obtained in its preparation by fermentation. Rubiginic acid, pyromeconic acid and rubiginol may be produced as by products of the above process.
Patent GB-1411259-A (GB)
Title: Load distribution arrangement
IPC: H02J3/46
Filed: 1972-12-21
Abstract: 1411259 Automatic control systems SIEMENS AG 21 Dec 1972 [21 Dec 1971] 59267/72 Heading G3R [Also in Division H2] The outputs of a number of current supply installations are connected in parallel, and each installation has a current regulator receiving a reference signal such that the total current is shared in predetermined proportions. The reference signal represents the average magnitude of the actual currents in each supply. As shown, a bus-bar 4 receives power from A.C. generators 2a-2c driven by D.C. motors 1a-1c with associated tachogenerators T connected to speed regulators 5a-5c which also receive a speed reference signal n*. The output current from each generator is measured by a transformer W and compared in circuits 7a-7c with the bus-bar voltage U before feeding to current regulators 6a-6c. The mean value of the generator currents is calculated in an operational amplifier circuit 8 to provide further inputs to the current regulators 6a-6c, and third inputs are received from a slow response frequency regulating circuit 9 supplied by a pulse frequency-voltage transformer circuit 10. The outputs from the regulators 6a-6c are connected as further inputs to the speed regulators 5a-5c. Three-value circuits 10a-10c provide fault indicating signals if the output current of any generator persists at a value greater than, say, 10% from its nominal value. In this case, a relay logic circuit 11 is actuated to disconnect the faulty supply at an isolating switch 3a-3c.
Patent GB-1402938-A (GB)
Title: Pjmps
IPC: F04B47/06
Filed: 1972-12-21
Abstract: 1402938 Reciprocating pumps CANADA TIEFBOHRGERATE-UND MASCHINENFABRIK 21 Dec 1972 59273/72 Heading F1A A deep well pump comprises a cylinder 1 attached to a pipe run at sleeve 2 and a suction nozzle at sleeve 3 and having a removable suction valve 15 which can be coupled to the pump piston 5 for removal, or is connected to the piston by a rod or chain for removal. The piston 5 is connected to an actuating rod by a threaded socket 7. Flow through the piston is controlled by a sleeve 6 axially. movable relative to the piston 5, and having a portion 11 sealingly engageable with a conical seat 13 to prevent through-flow during the upward stroke. The suction valve 15 has a sleeve 17 engageable with a seat 21. As shown, piston 5 has a threaded socket 14 engageable with a threaded projection 25 on valve 15, the piston being rotated to engage the valve and the piston and valve being rotated to unscrew the threaded connection 24 of the valve to sleeve 3. In Figs. 2 and 4 (not shown), a rod fixed to the piston slides in a sealed axial bore through the valve and has a non-circular cross-sectional shape at its lower end for engaging a correspondingly shaped bore portion or recess in the valve, so that rotation of the piston in its uppermost position unscrews the valve for removal on the end of the rod. The cylinderengaging portions 9 and 17 of the piston and suction valve are of resilient material, e.g. vulcanizable synthetic rubber, secured to sleeves 6 and 17. The central parts of the piston and suction valve are shaped to define flow passages, Fig. 3 (not  shown).
Patent GB-1453096-A (GB)
Title: Manufacture of resilient bands
IPC: B29C37/00
Filed: 1973-12-29
Abstract: 1453096 Manufacture of endless loops C GROS 30 Dec 1974 [29 Dec 1973] 60165/73 Heading A4X [ Also in Division C3] In apparatus for producing endless loops of resilient material, e.g. rubber, a predetermined length of web is drawn around a roller 5, Fig. 1, through a cutting device 6 including a cutting member 10 which moves downwardly for producing in the web a longitudinal (or transverse) slit with end apertures (12, 14), Fig. 2 (not shown); the leading end of the web is then displaced downwardly on to an upright pin 24a of a member 18 rotating anti-clockwise, pin 24a engaging apertures (14) and thereafter drawing the engaged end over fingers 26 (or 32-5), Figs. 3, 4 (not shown) which enter the slit; a knife 30 then moves downwardly to cause the next slit to engage pin 24b, and to sever the end of the web; the fingers 26 then separate transversely of the web to stretch the loop so held, and are then displaced transversely as a unit to transfer the loop to another device, e.g. for forming elasticated waistbands in plastics baby pants. Alternatively, pins 24a, b may be carried by an endless chain, or pins 24a, b and a member 18 may be replaced by a reciprocating gripper mechanism. In another form of apparatus, Fig. 5, a flattened tube 42 is fed through rollers 40, 40a and the leading end is engaged by fingers 46 which are urged apart to stretch the tube end; a rotary knife 48 or a guillotine then severs the end of the tube; the fingers 46 are then moved further apart to stretch the loop so held, and are then displaced for transfer of the loop.
Patent GB-1339711-A (GB)
Title: Coating processes
IPC: C08J7/12
Filed: 1970-12-21
Abstract: 1339711 Coated products BOSTIK Ltd 21 Dec 1970 [22 Dec 1969] 60458/70 Heading B2E A method of producing a firmly adherent coating on a polymeric surface layer having a critical surface tension of not more than 35 dynes per centimeter as determined by contact angle measurements, in which method there is used a polymeric surface layer provided with a photo-sensitiser having a triplet state energy of at least 62K cal/mole, comprising the steps of irradiating the surface layer with ultraviolet light having a wavelength 2000-3500Š to an extent of not less than 980 watt-seconds per square foot of the surface layer and sufficient to promote generation of free radicals in molecules of said surface layer, and subsequently applying to the surface layer a coating composition in which the film forming component is essentially polymeric and which has chemical groups capable of combining with the molecules of said surface layer in which free radicals have been generated. Preferred photosensitisers are ketones, hydrocarbon multiple ring compounds, and halogenated hydrocarbons. The polymeric surface layer may be of polyethylene, polypropylene, a copolymer of ethylene and propylene, a copolymer of ethylene, propylene and a non- conjugated diene (EPDM), copolymers of ethylene or propylene with vinyl acetate or ethyl acrylate, polyvinyl fluoride or polyvinylidene fluoride. Other suitable materials are acetal resins, polyamides, polyurethanes, and metallic salts of an acrylic acid copolymer. The coating composition preferably comprises a polymer or copolymer of methyl acrylate, ethyl acrylate, methyl methacrylate or ethyl acrylate. This type of coating composition may include 0.1% by weight polymerisable monomer having a vinyl or vinylidene radical. Polyurethane paints may also be used in which case a dosage of 5000 watt-secs./sq. ft. may be desirable. The ultraviolet radiation used is preferably at a wavelength of 2000-2800Š. Discussion of the bonding mechanism between the two polymeric materials is provided. The photosensitiser is generally applied to the polymeric surface layer in the form of a solution in a volatile solvent or as a pure liquid. The polymeric surface layer may be coated with a primer and then a top coat. Examples, some of which are comparative, refer to coating a) polyethylene with polymethyl methacrylate primer and top coats (1-13); b) ethylene butene-1 copolymer with polymethyl methacrylate primer (14-33); c) polyethylene with polymethyl methacrylate primer or top coat including metallic pigment, methane paint and acrylic primer (34-43); d) polyethylene or propylene optionally reinforced with glass fibres and polymethyl methacrylate primer and/or top coat, acrylic primer, and polyurethane paint (44-79); e) polyethylene with polymethyl methacrylate which optionally contains 0.1% acrylic acid (80-82); and f) acetal, polycaprolactam or polyamide with polymethyl methacrylate.
Patent GB-660643-A (GB)
Abstract: 660,643. Typewriters &c. NATIONAL CASH REGISTER CO. May 6, 1949 [July 17, 1948], No. 706/50. Divided out of 660,620. Drawings to Specification. Class 100 (iv). [Also in Group XIX] The subject-matter of this Specification is identical with a part of that described in Specification 660,620, [Group XIX], but the claims are concerned with mechanism, in an accounting machine, for obtaining single or double prints on an inserted slip. The printing hammer is operated through a toggle pair, the centre joint of which is reciprocated by a main cam and one link actuating the hammer provided the other is blocked against movement. The links straighten and actuate the hammer twice for each reciprocation, but either or both actuations can be suppressed by freeing the blocked link by differentially settable control means.
Patent GB-669282-A (GB)
Abstract: 669,282. Calculating-apparatus. AKTIEBOLAGET FACIT. April 29, 1948 [May 8, 1947), No. 11790/48. Class 106 (i). In a calculating machine having crawl carry mechanism and capable of performing automatic division, each numeral wheel is designed or arranged so that it may actuate either of two feelers which are step-shifted in division operations across the machine and which co-operate with each other and with the numeral wheels of the two denominations with which they are at any moment associated so that when the corresponding numeral wheels both pass through or arrive at their zero positions together, a device is operated to stop the machine subtracting and to step-shift its carriage. A gear 21 in each denomination, geared to rotate at half the speed of the numeral wheel 23, has two elongated teeth 21a which co-operate with feeler arms 51, 52 adapted to be step-shifted along a shaft 48 by means (not shown) which may be carried on the carriage of a transversely movable actuator. Only two denominations of the dividend register are shown and these are drawn apart axially for clarity. The arm 51 embraces a yoke 49 fast on the shaft 48 to which is secured an arm 53 carrying a pin 54 which forms a pivot for a lever 57. The arm 52 is slotted to receive freely the yoke 49 and embraces a second yoke 50, an elongated end of which carries a pin 56 also forming a pivot for the lever 57. The arrangement is such that if either of the arms 51, 52 is rocked alone the lever 57 is rocked ineffectively clockwise, but if both arms are rocked together, the lever 57 receives a double clockwise movement and engages an arm 62 which, in a manner not described, stops the subtraction operations and causes a step-shift to the next lower denomination. To enable division to commence in the highest denomination of the dividend register having a numeral wheel, a gear 21 is provided in a higher " blind" denomination. Specifications 551,311 and 582,052 are referred to.
Patent GB-2006326-A (GB)
Title: Fluid Flow Meters
IPC: G01F1/72
Filed: 1978-10-11
Abstract: A meter for measuring a pulsed fluid flow in a pipe (11) comprises a resilient chamber (10). A compressing force is applied to the chamber via a vessel (18) pressurized to a pressure substantially equal to the supply pressure in the pipe (11). When supply is inhibited upstream of the chamber, the chamber is compressed expelling fluid into the pipe. Changes in internal volume of the chamber, and thereby the amount of fluid expelled, are measured by displacement of a surface (20). When supply is restored a differential pressure exists due to the resilience of the chamber to draw fluid into the chamber. Preferably a downstream valve is inhibited whilst the chamber is filling to prevent flow past the chamber. <IMAGE>
Patent GB-2020161-A (GB)
Title: A sole for a spiked shoe
IPC: A43B13/14
Filed: 1978-11-07
Abstract: A sole of plastics material for a spiked shoe wherein the sole is wedge-shaped, tapering from the heel to the toe to improve the posture of a shoe wearer. The sole also having integral spike studs to which spike heads can be removably fastened and a cushion of foam material in a recess in the upper face of the heel of the sole. <IMAGE>
Patent GB-2036673-A (GB)
Title: Aircraft loading gangways and floors therefor
IPC: B60P1/02
Filed: 1978-11-28
Abstract: A bridge assembly (16) extends over the cab of an aircraft commissary vehicle to allow the latter to service an aircraft and has a flooring member (34) constructed as a sandwich of two aluminium sheets separated by a honeycomb filling typically of aluminium foil. The overall height of the walkway is thereby reduced relative to the ground since the rigidity of the flooring member is such that transverse strengthening ribs can be dispensed with allowing the platform to settle lower than has previously been the case over the cab. By reducing the cab height by flattening the curvature of the roof of the cab so the height of the walkway can be further reduced thereby allowing a single commissary vehicle to service a larger range of aircraft. <IMAGE>
Patent GB-2010317-A (GB)
Title: Treating mixtures derived from the refining of oils with sulphuric acid
IPC: C10G17/06
Filed: 1978-12-14
Abstract: A process for treating mixtures derived from the refining of hydrocarbons with sulphuric acid comprises:   (A) treating 50 to 60 parts by weight of acid sludge, with 25 to 40 parts by weight of phenolic tar and before, during or after treatment with the acid sludge mixing the phenolic tar with 10 to 25 parts by weight of water, and passing the resultant solvent/acid sludge mixture to a settling zone in which resin separates in the organic phase and the acid separates in the inorganic phase at a sedimentation temperature of from 50 to 90 DEG C, or (B) treating a reaction mixture, derived from the refining of hydrocarbons with sulphuric acid, with a specific solvent for the hydrocarbons and with water, the amounts of specific solvent and water added being such as to provide a ratio range by weight of refining agent to specific solvent to water of from 1: 0.01 : 0.3 to 1 : 3.0 : 1.5 and mixing the components at 20 to 60 DEG C, and separating the mixture into a sulphuric acid phase, a resin phase and a refined oil phase; or (C) treating a reaction mixture derived from the refining of hydrocarbons with sulphuric acid with an amount of water such as to provide a ratio range by weight of refining agent to water of from 1 : 0.2 to 1 : 1.5 and mixing the components at 20-60 DEG C and separating the mixture into a sulphuric acid phase, a resin phase and a refined oil phase. g
Patent GB-2040257-A (GB)
Title: Apparatus for discharging material from a heap
IPC: B65G65/06
Filed: 1979-01-03
Abstract: Apparatus, for discharging material from an annular, circular heap lying at its normal angle of repose, has a circular track 2 outside the heap, a support 3 which is carried on the track 2 at three positions 11, 12, 13 which are widely separated, a conveyor 1 for conveying the material to an outlet funnel 15 in the middle of the floor and means 4 for raising and lowering the conveyor 1 for proper engagement with the heap. <IMAGE>
Patent GB-2027795-A (GB)
Title: Internal combustion engine pistons and connecting rods
IPC: F01L1/26
Filed: 1979-03-27
Abstract: A piston 13 is generally oblong in a cross-section normal to its direction of reciprocation in a correspondingly shaped cylinder 12 and a plurality of connecting rods 17 extend between the piston and a crankshaft 14, the connecting rods being spaced in a direction parallel to the rotary axis of the crankshaft. <IMAGE>
Patent GB-2021209-A (GB)
Title: Brush Seals
IPC: F16J15/32
Filed: 1979-05-10
Abstract: A brush seal comprises a plurality of tightly-packed bristles 1 sandwiched between a pair of spaced side plates 2 and having free ends ad projecting at an angle  alpha  therefrom. The ends of the bristles are machined so that when they are in position against the surface of another component at a diameter 5 which represents an interference fit the end of each bristle lies in a plane P which makes an angle  beta with the longitudinal axis of the bristle to produce a wedge-shaped space in which air or liquid will be drawn so that the bristle will lift from the surface. The machining of the bristle ends is carried out with the bristles deflected to an even greater interference at a diameter 8 so that the angle  beta  is formed when the bristles spring back. <IMAGE>
Patent GB-2056774-A (GB)
Title: Bipolar electrolytic capacitor
IPC: H01G9/048
Filed: 1979-05-17
Abstract: An electrically freely moveable unformed electrode foil 7 is placed between and is entirely covering and screening formed electrode foils 1,2 of a wound electrolytic capacitor. The unformed electrode foil, upon voltage application, adjusts itself, within the potential drop between the formed electrode foils, to a low positive potential in relation to the negative formed electrode foil, thus leading to a very small potential drop dE between the negative formed electrode foil and its adjacent electrolyte layers. Thereby, harmful cathodic reactions and valve film deterioration are inhibited. The consequent quality improvement makes possible, for example in electrolytic motor start capacitors, to exchange expensive low-ratio stabilized electrode foils for inexpensive high-ratio unstabilized electrode foils with reinforced oxide layers, thus leading to a remarkably cost-reduced and improved capacitor. Preferably the unformed electrode foil contains less than 99.5 % valve metal. One of the formed electrodes may be provided with a reinforced oxide layer obtained by boiling the electrode foil in pure de-ionized water. <IMAGE>
Patent GB-2023074-A (GB)
Title: Ship's hull
IPC: B63B7/02
Filed: 1979-06-15
Abstract: An arrangement is provided in a vessel which has a crane mounted on its deck, in which the end of the ship's hull (1) is divided longitudinally into two sections (2) each of which can be pivoted about a substantially vertical axis of rotation thereby removing the obstruction to crane operations which the end of the hull would otherwise present. <IMAGE>
Patent GB-2024667-A (GB)
Title: Manufacture of commutators
IPC: H01R43/08
Filed: 1979-06-19
Abstract: A method of making a commutator for electric motors and generators comprises extruding a strip of metal, coining recesses and ridges 5, cutting slots 8 to form tongues 9, shining ridges 5 and leading up the ends, forming the strip into a cylinder, Figure 5, moulding insulating material inside the cylinder, leading over tongues 9 to form connecting points, and cutting slots in the cylinder to form commutator segments. <IMAGE>
Patent GB-2054052-A (GB)
Title: Temperature Compensated Gas Generator
IPC: B64D7/08
Filed: 1979-06-27
Abstract: A temperature compensated gas generator for use, for example, in aircraft store ejector release units, includes a gas duct (1), a gas generating cartridge (4) for pressurising the duct, and a temperature responsive actuating element (8) connected to actuate a valve (13) for controlling gas pressure at the duct outlet (30) so as to compensate for variations in gas pressure due to variations in pre-firing cartridge temperature. <IMAGE>
Patent GB-2024832-A (GB)
Title: Polymerisation of Ethylene
IPC: C08F10/02
Filed: 1979-07-02
Abstract: A process for preparing polymers and copolymers of ethylene by first contacting a catalyst consisting of an organometallic, compound and a solid substance containing magnesium and titanium and/or vanadium, with an  alpha - olefin, preferably in the presence of a liquid hydrocarbon, and thereafter contacting ethylene or a mixture of ethylene and an  alpha -olefin in gaseous phase with the treated catalyst whereby the homopolymerization of ethylene or the copolymerization of ethylene and  alpha -olefin is effected.
Patent GB-2024648-A (GB)
Title: Chromatographic isotope separation process
IPC: B01D59/30
Filed: 1979-07-03
Abstract: In a process for the separation of isotopes in a chromatographic system, an isotopic plateau (2) in equilibrium with the originally introduced influents is maintained by forming a very wide absorption band in order to separate the enriched zones from the depleted zones at the head and the tail of the chromatogram. <IMAGE>
Patent GB-2053871-A (GB)
Title: Method for producing calcium phosphate catalyst
IPC: C07C1/247
Filed: 1979-07-20
Abstract: Calcium phosphate catalysts used in producing isoprene from isobutylene and formaldehyde and in dehydrating alcohols are produced by interacting a calcium salt and a phosphate in an aqueous-ammonia medium at a molar ratio of the calcium salt to phosphate of 1.5-5.0:1, separating a precipitate from the reaction mixture, shaping and drying the precipitate, the reaction mixture being treated, prior to separation of the precipitate, with phosphoric acid solution until a pH- value of 5.0-7.0 is reached.
Patent GB-2033905-A (GB)
Title: Bacterial preparation of proteins
IPC: C12N15/00
Filed: 1979-08-03
Abstract: Animal or plant high molecular weight proteins can be prepared by a host such as E. coli by using DNA recombinant technology to fuse a gene coding for the protein near transcriptional and translational regions in a vehicle such as a plasmid which is inserted in the host. New plasmids and E. coli strains are described.
Patent GB-2031493-A (GB)
Title: Slat blind
IPC: E06B9/36
Filed: 1979-08-13
Abstract: In a collapsible vertical slat blind the slats are pivoted on trucks D slidable on a grooved spindle 3. The slats are turnable through 90 DEG  by rotation of the spindle by a chain wheel being transmitted via worm gearing 2, 1 which includes a slip clutch with engaging surfaces 7', 5. A hook carrying the slat is integral with a flanged pin extending into a bore in worm wheel 1, a spring 6 surrounding the pin being compressed between a circlip 8 at the end of the pin and a flange on worm 1 to bias surfaces 7', 5 together. <IMAGE>
Patent GB-2029635-A (GB)
Title: Mass spectroscopy of fluids leaving a chromatograph
IPC: H01J49/16
Filed: 1979-08-15
Abstract: A sample 19 of fluid is supplied continuously or discontinuously into a vacuum chamber 5 where it is bombarded by short pulses of light from laser 2 focused on a point on the axis 9 of a time of flight mass spectrometer. In Figure 1, liquid is carried by a transporting strip 14 between spools 17, 18 and the light can be transmitted through strip 14 (Figure 2). In Figure 3 the fluid is, directed by a jet (30) to the focal point of the light on the transporting strip whereas in figure 4, droplets are intermittently directed to the focal point without the use of a transporting strip. <IMAGE>
Patent GB-2029313-A (GB)
Title: Manufacture of Hollow Bodies
IPC: E01F9/615
Filed: 1979-08-22
Abstract: A method of making multi-part hollow articles e.g. traffic bollards in which the making of the component parts includes making hollow bodies, each having as integral parts thereof a plurality of the said component parts, and severing the said integral parts of the hollow bodies apart to provide separate component parts of the articles for subsequent assembly.
Patent GB-2033749-A (GB)
Title: Method and composition for combating pests
IPC: A01N47/22
Filed: 1979-09-20
Abstract: Pests, particularly arthropods, are combated by a combination of bendiocarb (2,2-dimethyl-1,3-benzodioxol- vinyl-N-methyl carbamate) and pirimicarb, (2-dimethylamino- 5,6-dimethyl-4-pyrimidinyl dimethyl carbamate or a salt thereof).