baber/WOPTO huggingface dataset:
Patent GB-1416550-A (GB)
Title: Steam generator assembly
IPC: E04H12/28
Filed: 1972-12-29
Abstract: 1416550 Steam generator assembly ELECTRICITE DE FRANCE (SERVICE NATIONAL) 29 Dec 1972 [29 Dec 1971] 60044/72 Heading F4A A steam generator assembly comprises a hollow supporting structure 1 and a vertical boiler 7 suspended within the structure from a horizontal, inwardly projecting portion 3; the structure 1 tapering to a chimney portion at its upper end and resting on a foundation 2. The structure 1 is preferably formed as a pre-stressed or reinforced concrete shell and has the general form of a truncated cone. Tie-rods 13 attached to the boiler 7 are suspended from a rectangular framework of beams having sides 4, 5 and each corner of this framework is carried on a support 6 resting on the portion 3; the weight of the boiler being transferred to the structure at eight approximately equidistant points in the ends of the supports 6. The flue gases are discharged through an aperture defined by parts 4a, 4b, 5a, 5b and pass via an air heating regenerator 8 to a metal flue 9.
Patent GB-1223926-A (GB)
Title: Glazing bone china
Inventor: SIMONIS HORST
IPC: C03C8/14
Filed: 1968-12-18
Abstract: 1,223,926. Glazing bone china. H. SIMONIS. 18 Dec., 1968 [12 July, 1968], No. 60244/68. Heading C1M. A coloured glaze is produced on bone china by using a basic glaze and a pigment, the basic glaze having a composition within the limits of the following Seger formula (in moles) the mixture of glaze and pigment being applied as an aqueous suspension, the glaze then being fired below 1040‹ C. The pigment which may be mixed with the frit may be a copper compound in an amount equivalent to 1-4% (of the weight of the basic glaze), or 3-7% by weight of selenium compound or metallic selenium or cadmium compound (all calculated as the respective oxide). The pigment may be CuO, CuCO 3 , Cu(NO 3 ) 2 , CuSO 4 , CdSe, CdS, CdCO 3 , CdO, ZnSe, Na 2 Se or Se.
Patent GB-1321350-A (GB)
Title: Food making machinery
IPC: B26D1/06
Filed: 1971-12-29
Abstract: 1321350 Splitting muffins E M NOEL 29 Dec 1971 [8 Feb 1971] 60436/71 Heading A2A A hand-operated muffin splitting machine comprises a tray 11 to receive a plurality of muffins M in in-line arrangement across the machine and two sets T, T' of tines which are movable simultaneously from retracted positions, shown, to positions in which they pierce the muffins in interdigitated relationship, the tines being carried by movable bars 12, 13 and guided by holes 18, 18' in members 19, 19', and the assembly comprising the set of tines T and member 19 &c being pivoted at 28 so that as the inward movements of the two sets of tines are completed the set T is tilted, due to engagement of rollers 32 on the bar 13 with ramps 31, so that the upper halves of the muffins are lifted and torn from the lower halves. The ramps 31 are adjustable so that the tearing apart of the muffins may be complete or partial. Levers 34, 36 having pin-andslot connections with the bars 12, 13 are interconnected by a link 35 and operated by a handlebar 37.
Patent GB-1342747-A (GB)
IPC: G02B5/32
Filed: 1970-12-29
Abstract: 1342747 Point holograms PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Dec 1970 [30 Dec 1969] 61541/70 Heading G2J A point hologram is formed by reconstructing the real image 7 of a first point hologram 8 made by exposing a photographic plate to a point reference source and a point object which is moved in a stepwise manner between exposures, providing a point reference source 11 in the plane of the real image 7 and recording as a second point hologram 10 the interference between radiation from image 7 and reference source 11. A lens 9 is used to focus the real image 7 onto the second hologram plane. In forming the first point hologram 21, Fig. 2 a point reference source 16 is used. A point object source 20 is movable in two co-ordinate directions together with prisms 18, 19 to form the point array on hologram 21. Reference has been directed by the Comptroller to Specification 1233242.
Patent GB-1299660-A (GB)
Title: Improvements in or relating to method and apparatus for roll pressure bonding
IPC: B23K20/04
Filed: 1970-12-29
Abstract: 1299660 Jointing by rolling; making composite sheets ALLEGHENY LUDLUM INDUSTRIES Inc 29 Dec 1970 [2 Jan 1970] 61688/70 Headings B3A and B3M Apparatus for roll-bonding between rolls 40 and 50, Fig. 1, a number of thin parallel strips fed from a coil 2, to a substrate fed from a coil 1, includes guiding rolls 10 which prevent misalignment of the strips relative to the substrate. The rolls are arranged to move axially in response to lateral movements of the substrate. The strips are hot or cold-bonded to the substrate, and the substrate may be slit longitudinally to produce lengths of substrate having a thin strip along each edge. The substrate may be of stainless steel, and the strips (in the form of wire or foil) of aluminium, zinc, cadmium, magnesium, or a base alloy of such a metal. The final product may be used as a trim strip for a car, with the thin strips along the edges acting as a sacrificial metal. As shown in plan in Fig. 2, the guiding rolls 10<SP>1</SP> are provided with grooves for the strips, and are carried between side frames 16. The substrate runs between rollers 20 which are coupled to the frames by supports 26 and a screw 24. If the substrate shifts laterally, the rollers 20 follow the substrate and cause the frames 16 and the rollers 10<SP>1</SP> to move correspondingly. The frames are slidably mounted on fixed rods 22 for this purpose. The screw 24 allows the spacing of the rollers 20 to be adjusted for different widths of substrate.
Patent GB-1285979-A (GB)
Title: Variable-frequency semiconductor oscillator
IPC: H01L29/00
Filed: 1969-12-22
Abstract: 1285979 Semi-conductor devices TELEFUNKEN PATENTVERWERTUNGS GmbH 22 Dec 1969 [24 Dec 1968] 62386/69 Heading H1K The frequency of a transit-time semi-conductor oscillator, such as a Gunn effect or avalanche transit-time device, including a central cathode K surrounded by an annular anode A is varied or modulated by the application of a magnetic field of variable magnitude and/or sense. The oscillator may comprise an epitaxial layer on a carrier body, a plurality of layers of differing doping or a single layer containing regions of unequal doping. It may be exposed to low temperature to increase the effect of the magnetic field.
Patent GB-682178-A (GB)
Abstract: 682,178. Neutralization of sulphonated organic compounds. SCHERBE, H. H. A. May 18, 1949 [May 20, 1948], No. 13314/49. Class 2 (iii). Capillary-active sulphuric acid esters of monoglycerides of fatty acids as such or in the form of crude products containing sulphuric acid are neutralized by means of one or more solid carbonates and/or bicarbonates and to avoid foaming, the neutralization is carried out in the absence of any liquid diluent other than the water formed by the neutralization or added in such proportion that the mixture will contain less than 40 per cent by weight of water throughout the neutralization. Preferably, the reaction mixture contains excess of carbonate or bicarbonate at all times until the neutralization is complete. As neutralizing agent, carbonates or bicarbonates of sodium, potassium, calcium or ammonium may be used. The product obtained when ammonium carbonate or bicarbonate, which may contain some carbamate, is used in the neutralization with or without subsequent drying can be milled and pressed in the same manner as hard soap. In examples, a sulphated monoglyceride, obtained by reacting fuming sulphuric acid with glycerol (2 moles) to form a glyceryl sulphuric acid which is reacted with coconut oil (1 mol), the amount of acid being such that the final product is water-free, is neutralized by (1) adding the sulphated glyceride (2,000 gms.) gradually to a stirred mixture of sodium carbonate (2,000 gms.) and water (300 gms.), a further 200 gms. water being added during the neutralization, or (2) adding the sulphated glyceride (1,880 gms.) gradually to a stirred mixture of technical ammonium carbonate (1,680 gms.) and water (100 gms.). The Specification as open to inspection under Sect. 91, relates to the neutralization of capillary-active sulphonated products in general by the above method; reference is made to sulphonated fat oils and castor oil. This subject-matter does not appear in the Specification as accepted.
Patent GB-765313-A (GB)
Abstract: 765,313. Gyroscopic apparatus. BENDIX AVIATION CORPORATION. Feb. 10, 1955 [Feb. 15, 1954], No. 4031/55. Class 97(3) Gyroscopic caging mechanism includes a caging element with a caging spring and a return spring, and actuating means for retracting the return spring during caging and releasing the return spring during uncaging. As shown, the rotor casing 14 is pivoted in a gimbal yoke 16 trunnioned in a casing 10 having a back plate 11 and a front plate 13. The trunnion 17 of the gimbal 16 has a cam surface 20 with a depression 21 for centralizing the gimbal by means of a cam follower 22. Similarly, the rotor casing axis 15 carries a cardioid cam 26 engaged by a cam follower 25. The cam followers 22, 25 are mounted on a bracket 24 slidable along a rod 27 fixed between the front plate 13 and a bracket 28 fixed to the back plate 11. Bracket 24 has an extension 34 through which a rod 29 slides. Rod 29 extends through the front plate 13 and terminates in a knob 30 and also slides through a bore in the bracket 28. A caging spring 33 bears against a stop nut 35 engaged by a lock-nut 36 on rod 29, and against the projection 34 on the bracket 24. A spring 31 encircling the rod 29 bears against a collar 32 fast with rod 29, and against the front plate 13. Spring 29 is sufficiently strong to push bracket 24 back against action of the caging spring 33 to hold the cam followers 22, 25 free from their respective carn surfaces. When knob 30 is pulled forward to cage the gyroscope, the spring 31 is compressed and spring 33 is free to urge the bracket 24 into caging positions. The forward movement of rod 29 is limited by a stop nut 37 and a lock nut 38 which bear against the surface of brackets 28. Alternatively, the movement may be stopped by the solid position of the spring 31. Specifications 701,385 and 729,518 are referred to.
Patent GB-2006336-A (GB)
Title: Split Internal Combustion Engine Operation Controlled in Dependence on Engine Power and Speed
IPC: F02D41/36
Filed: 1978-10-09
Abstract: A control system for a multi- cylinder internal combustion engine comprises an engine speed detector (20) and an engine power detector (38). Dependent on the detected speed and power as compared with predetermined reference levels either all or half the fuel injectors 1-1 to 1-6 are intermittently energised, the power is determined as a function of the pulse width of the injector energisation signals. The speed reference level with which the detected engine speed is compared may be varied dependent on the detection of low power output of the engine, Fig. 4 (not shown). <IMAGE>
Patent GB-2012862-A (GB)
Title: Operating Sliding Doors
IPC: E05F15/56
Filed: 1978-10-18
Abstract: A system consisting of a sliding door closure and door hanger which are characterised by a single action fluid, e.g. pneumatic, cylinder 20 and an internal return spring coiled around the piston rod to achieve pneumatic opening of the sliding doors 7, 8 and spring closing of the latter respectively. The return spring is taken advantage of to reduce the closure force at the end of the closing movement and to eliminate the sealing requirements around the piston rod at the corresponding end of the pneumatic cylinder. The system further comprises a slide track unit including a pair of movable slide track members to which are attached the doors respectively, the piston rod, and an interconnecting cable 29, 30 such that the doors may be removed without disturbing the setting or mounting of the door closure and hanger system. <IMAGE>
Patent GB-2008446-A (GB)
Title: Gas centrifuge
IPC: B04B5/08
Filed: 1978-11-14
Abstract: A gas centrifuge for separating gas mixtures comprises a casing (1) in which a rotor (2) is mounted for rotation about a vertical axis. At the bottom, the rotor is mounted in a self-centring bearing, and at the top has a cover (3) with a circular opening (4) through which a three-part concentric tube system (5) extends into the rotor. The longest (5a) and shortest tube (5c) each have a transverse tube (6) extending radially outwards to cause gas introduced to press against the inner wall of the rotor to centre the rotor. The outer wall (9) of the tube system (5) is made flexible at least in the region where it passes through the opening (4). A molecular pump (7) which is radially movable, is disposed between the rotor (2) and casing (1) with the interposition of a liquid seal. <IMAGE>
Patent GB-2010855-A (GB)
Title: Fire-resistant additive for hardenable resins
IPC: C08K3/22
Filed: 1978-11-29
Abstract: A hardenable resin composition (or a component thereof) containing as a fire retardant ingredient particulate aluminium hydroxide wherein 10 to 30% by weight of the particles have a diameter less than 1 micron, 45 to 75% by weight of the particles have a diameter in the range from 38 to 150 microns and less than 20% by weight of the particles have a diameter in the range from 1 to 38 microns. The invention includes a preferred blend of aluminium hydroxide. By use of a bi-model distribution of the particle size of the aluminium hydroxide, sufficient quantity of additive is obtained without an excessive increase in compound viscosity.
Patent GB-2037853-A (GB)
Title: Precast Lining Units for Ditches
IPC: E02B5/02
Filed: 1978-12-21
Abstract: A pre-cast ditch lining unit is formed of concrete or other cementitious material and comprises a unitary body including a base 10 and two upwardly or outwardly inclined sides 11, 12 with both ends of the unit being formed with a rabbet, groove, chamfer, shoulder or other sealing formation to co-operate with the adjacent end of a similar unit to form a watertight drainage conduit. According to a preferred feature of the invention the flanks are inclined to the base at an included angle of between 120 DEG  and 150 DEG  and in order to satisfy hydraulic flow conditions preferably 135 DEG . The lining unit includes internal reinforcement comprising a mesh fabric transverse reinforcing member extending across the base and up both flanks and separate reinforcement in the end shoulders. The unit should also include cast-in inserts to provide lifting points. <IMAGE>
Patent GB-2020017-A (GB)
Title: Device for detecting deoxyribonuclease production
IPC: C12Q1/34
Filed: 1979-04-12
Abstract: A test device for use in determination of deoxyribonuclease, a process for making the device and a method of determining deoxyribonuclease in a microbiological sample are disclosed. The test device comprises a carrier matrix and, incorporated therewith, deoxyribonucleic acid, methyl green and a water-soluble polymer selected from polyvinyl alcohol and carboxymethyl- cellulose. The device may incorporate inhibitors to allow selective growth of  beta -hemolytic streptococci.
Patent GB-2020020-A (GB)
Title: Pneumatic system for controlling the level of a working platform
IPC: B23Q1/00
Filed: 1979-04-18
Abstract: A pneumatic system for levelling a working platform (6) has, adjacent each support (8), first and second sensors (18, 20) which, in response to vertical movements of the platform, act, respectively, on a supply valve (22) and discharge valve (24) to cause inflation or deflation of a bellows (44) on the support (8) to cause raising or lowering of the platform, a continuous cycle of supply and discharge, maintaining the platform in dynamic equilibrium. <IMAGE>
Patent GB-2019425-A (GB)
Title: Epoxy-urethanes based on copolyesters
IPC: C08G18/42
Filed: 1979-04-23
Abstract: Described are polyester-urethane- epoxy adhesives produced by reacting one or more diols or polyether glycols with two or more dicarboxylic acids at least one of which is aliphatic and at least another of which is aromatic, to form a polyester prepolymer and chain-extending the prepolymer with an organic diisocyanate to yield a hydroxy-terminated polyester- urethane; and capping the urethane partially or completely with trimellitic anhydride or a dicarboxylic acid or anhydride of a dicarboxylic acid followed by further reaction with epichlorohydrin/Bisphenol A-type epoxy resin, forming an epoxy polyester-urethane block copolymer. The resulting product may then be crosslinked in use as an adhesive.
Patent GB-2019960-A (GB)
Title: Improvements in electromagnetic clutches
IPC: F16D27/112
Filed: 1979-04-27
Abstract: In an electromagnetic clutch having a pulley 10 which is rotated by an external driving power source through a belt or belts for selectively transmitting the rotation of the pulley to a drive shaft 5 by electromagnetically attracting a magnetic armature 7 supported on the drive shaft 5, the pulley comprises a magnetic annular body 101 rotatably supported and a belt- receiving groove member 102 of aluminium alloy formed onto the outer surface of the magnetic annular body 101 by die-casting and integrated with the magnetic annular body, in order to improve the weight, the cost and the producing method of the pulley 10 without degrading the performance and the balance of the pulley. <IMAGE>
Patent GB-2024810-A (GB)
Title: Method of obtaining dried terephthalic acid
IPC: C07C51/43
Filed: 1979-06-08
Abstract: Terephthalic acid (e.g. that produced by oxidizing p-xylene) is obtained in the form of dried powder from a slurry containing terephthalic acid and acetic acid and/or water by introducing the slurry into a tubular type heater having at least one heating tube which discharges at one end into a separation chamber whereby the slurry is converted into a solid-gas mixture in the heating tube, and discharging the mixture into the separation chamber to separate the solid component from the gas component. Critical slurry concentrations for continuous operation are given. <IMAGE>
Patent GB-2051252-A (GB)
Title: Apparatus for Extracting Energy from a Fluid Current
IPC: F03D3/06
Filed: 1979-06-19
Abstract: The apparatus comprises a shaft (1) mounted for rotation about a vertical axis (A-A) and carrying at least one vane assembly (2) having first and second vanes (3 and 4) and mounting arms (5), the vanes being affixed to the arms (5) so that, in the absence of exposure to a fluid current, the vanes (3 and 4) both depend from the arms (5) and are angularly offset from the vertical in opposite directions. When exposed to a fluid current, e.g. wind, the vanes (3 and 4) both move relative to the vertical, in the same angular direction. <IMAGE>
Patent GB-2027728-A (GB)
Title: Physiologically Acceptable Heparin
IPC: C08B37/10
Filed: 1979-08-08
Abstract: 'Oxalate-free' preparations of heparin, particularly in the form of calcium salts of heparin, which can be used for the preparation of injectable solutions of heparin which have long storage life comprise from 30 to 70 ppm oxalates. The heparin preparations are obtained by selective precipitation of the heparin from aqueous solution by the addition of a non-ionic agent, for example ethanol, wherein mineral salt impurities.
Patent GB-2028499-A (GB)
Title: Device for determining vapour condensation temperature
IPC: G01K11/06
Filed: 1979-08-10
Abstract: Apparatus for determining the condensation temperature of light hydrocarbons in a gas which can contain traces of heavy hydrocarbons comprises frosted mirror 11 over which the gas flows, and means for heating e.g. with resistive element 14 and cooling e.g. with Peltier effect elements 15 the mirror. Cooling the mirror causes the hydrocarbons to condense on it, rendering its frosted surface reflective, and the change is detected by photoelectric sensors 24, 25. The heating and cooling means are cyclically controlled, primarily by microprocessor 49, such that the mirror is first heated to a temperature at which both the light and heavy hydrocarbons will evaporate, then cooled rapidly to a temperature just above the anticipated condensation temperature of the light hydrocarbons. The mirror is then cooled more slowly until the first condensates appear, which temperature is stored, and a new cycle commences. However, in each new cycle, the mirror temperature is continuously compared with the condensation temperature stored in the preceding cycle which is used as the new anticipated temperature. <IMAGE>
Patent GB-2034612-A (GB)
Title: Manufacture of a gear housing
IPC: F16H57/02
Filed: 1979-11-02
Abstract: An elongate hollow body (10) of constant cross-section is formed by extension or casting and is cut to the required length of a gear housing. The body is formed with a bore (11) and another bore (14) is subsequently formed in it. The planes containing the axes of the bores are orthogonal but the axes do not intersect. The bores overlap and communicate with each other so that a gear can be mounted in each bore for intermeshing engagement. The housing is provided with longitudinally extending cooling flanges (12) and recesses (13) for accommodating bolts. <IMAGE>
Patent GB-2040900-A (GB)
Title: Zeolites of small particle size
IPC: A01K1/015
Filed: 1979-12-06
Abstract: Sodium aluminosilicate zeolites A, X, A and X are produced by the reaction of sodium aluminate and sodium silicate characterised by the steps of forming an aqueous solution of sodium aluminate; forming an aqueous solution of sodium silicate; reacting said sodium aluminate and said sodium silicate solutions at a temperature of 40 DEG  and 120 DEG C.; the reaction mixture having the following molar ratios of components:     (1) water to sodium 10:1 to 35:1   (2) sodium oxide to silica 1:1 to 4:1   (3) silica to alumina 1:1 to 10:1 continuing the reaction at these molar ratios to form the zeolite while controlling the molar ratios and reaction time to produce a fine particle size zeolite having an average particle size of less than 2 microns in diameter. These zeolites have magnesium and calcium exchange capacities which are superior to larger particle size zeolites and are used as fillers, extenders for TiO2 pigments, water softening agents and in detergents. Sodium silicate useful for forming zeolites is made by dissolving sand in NaOH to give solution of SiO2: Na2O molar ratio of 2.4-2.8:1 and activating by addition of 50-2000 ppm Al2O3 at 15-100 DEG C for at least 10 minutes. A method of making zeolite Y from this silicate is disclosed.
Patent GB-2038151-A (GB)
Title: Fishing line
IPC: A01K91/00
Filed: 1979-12-18
Abstract: A fishing line increases in diameter from its tip over a major portion of its length and then decreases to its butt end. A connection may be provided for joining its butt end to another line.