baber/WOPTO huggingface dataset:
Patent GB-1402798-A (GB)
Title: Method of measuring magnetic fields and magnetometer for perform ing the method
IPC: G01R33/05
Filed: 1973-08-14
Abstract: 1402798 Magnetometers COMMISSARIAT A L'ENERGIE ATOMIQUE 14 Aug 1973 [4 Sept 1972] 38440/73 Heading G1N The field strength of the component of a magnetic field in the hard axis of an anisotropic thin ferromagnetic field is measured by applying an alternating magnetic field along the hard axis having an amplitude less than the anisotropy field of the film so that the direction of magnetization of the film undergoes an oscillation without reversal and picking up an electrical signal representing the variations per unit time of the magnetic induction in the film. A thin monodomain cylindrical film (or strip) is formed on an insulating tubular support so that its easy axis is circumferential and its hard axis parallel to the axis of the support. After initial saturation of the film in its easy axis the alternating magnetic field is produced by applying a current of frequency F to a coil arranged around the film with its axis parallel to the hard axis. If the field under measurement is zero the magnetization oscillates symmetrically about the easy axis and no odd harmonics are induced in a toroidal output coil threading the tubular support around the film. The existence of a component of the field along the hard axis destroys the symmetry and results in odd harmonics being reduced in the coil which are proportional to the component. If the fundamental frequency F is to be detected the coil output is converted to an IF frequency which is synchronously detected to produce a D.C. signal indicative of the component. The D.C. signal may be fed back to the A.C. energization winding with a sign to compensate the magnetic field. In order to suppress components of the alternating field which may be picked up by the output coil two thin films may be used arranged with their hard axes parallel and fed by one excitation coil and including two series opposed output coils, or two excitation windings and one suitably disposed output winding may be used. Instead of detecting the fundamental the third harmonic may be picked up by using suitably tuned amplifiers or both if separate circuits are used. In a second embodiment the output of the output coil is amplified and fed back to the excitation winding which is in parallel with a capacitor to form an oscillator. The amplitude of the oscillations are proportional to the component of the magnetic field. In a further arrangement a bias winding may be provided whose axis is parallel to the hard axis and which carries a D.C. producing a field opposed to that under measurement so that the difference in the two fields is measured or the D.C. current is adjusted to give a zero output from the coil and the current flowing in the coil is indicative of the field.
Patent GB-977209-A (GB)
Title: Vacuum chuck
IPC: B25B11/00
Filed: 1962-10-11
Abstract: 977,209. Vacuum chucks. AMAGASAKI KOSAKUSHO KABUSHIKI KAISHA. Oct. 11, 1962 [March 5, 1962 (2); April 2, 1962 (2); June 9, 1962], No. 38488/62. Heading B3D. Each of the work-contacting elements of a vacuum chuck consists of an imperforate elastic disc 14, Fig. 4, which is formed with a thin edge 16 and has a continuous integral skirt 12 snugly engaged in an annular groove 5 surrounding a suction orifice 6 in the chuck body. The orifices 6 are connected by ducts 7 to a corrector 8 for a vacuum pump. The surface of the chuck body is formed with grooves which interconnect the countersunk portions 4 of the orifices 6 and serve to conduct away any cutting or cooling fluid used in the machining operation. In the modification shown in Fig. 9 the skirt 17 is of smaller diameter than the disc 17 to which it is connected by a convoluted part formed by inner and outer grooves. Friction pads 40 may be disposed in the surface of the chuck body between the various elements. A suction pump 23 is connected to the outlet from the chuck body and a second outlet 26 from the body is connected to a suction device 27 having a piston 36 which, during outward movement of the rod 24 of the pump, is released by a lug so as to be urged by a spring to allow liquid 38 the body to drain slowly past a valve 30.
Patent GB-1062450-A (GB)
Title: Improvements in or relating to tables and like articles of furniture
Inventor: KENNEDY WILLIAM ALBERT
IPC: A47B1/08
Filed: 1964-09-22
Abstract: 1,062,450. Gate-leg tables. ARGYLE CHAIR WORKS (SCOTLAND) Ltd. Sept. 20, 1965 [Sept. 22, 1964], No. 38530/64. Heading A4H. In a drop-leaf gate leg table having springs to urge the legs to the erect position, each spring is anchored at one end to an upper part of the gate leg close to its pivotal axis and at its other end to an adjacent vertical member of the main underframe.
Patent GB-1243793-A (GB)
Title: Process for the production of polyether isocyanates
IPC: C07C263/10
Filed: 1968-08-12
Abstract: 1,243,793. Polyether isocyanates. WYANDOTTE CHEMICALS CORP. 12 Aug., 1968 [1 Sept., 1967], No. 38554/68. Heading C3R. [Also in Division C2] Polyether isocyanates of the formula wherein m is 2 or 3, R<SP>1</SP> is or and R is a group of the formula wherein R<SP>11</SP> is a di- or tri-functional C 2-6  alkylene group, a C 4-8  oxyalkylene group or an alkyl diarylene group having up to 25 carbon atoms, R<SP>111</SP> is hydrogen, methyl or ethyl and n is 1 to 20, are obtained by reacting, in solution, phosgene with an amine of formula The reaction is preferably effected in an inert solvent by contacting the amine with phosgene at 0-60‹ C. and completing the reaction at 100-175‹ C. Suitable starting materials include polypropylene glycol (500 to 2000) and condensates of propylene oxide with polyols which have been cyanoethylated and subsequently hydrogenated.
Patent GB-1059556-A (GB)
Title: Motor car bodies
Inventor: DAVIDSON ROLAND HERBERT
IPC: B62D29/04
Filed: 1964-09-22
Abstract: 1,059,556. Coated surfaces. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 9, 1965 [Sept. 22, 1964], No. 38585/64. Heading B2K. [Also in Divisions B5 and B7]. A body for a motor car is made from one or more parts obtained by conventional moulding or shaping methods from thermoplastic organic polymeric material, the body having on at least part of one surface a covering of a hardened fibre reinforced resin applied to the surface in hardenable form and thereafter allowed to harden. The thermoplastic organic material has a Young's modulus of at least 10<SP>5</SP>1b/sq. in, and is selected from the homopolymers of vinyl chloride and copolymers of vinyl chloride containing up to 20% by weight of vinyl acetate or vinylidene chloride; polymethyl methacrylate and copolymers of methyl methacrylate and the alkyl esters of acrylic acid containing 1-8 carbon atoms in the alkyl moiety, polystyrene, nylon; the polyacetals; the rigid co-polymers or butadiene and styrene and/or methyl methacrylate; mixtures of rigid copolymers of styrene and acrylonitrile with rubbery polymers or copolymers of butadiene; high density polyethylene; and polypropylene. The thermoplastic organic material may contain a reinforcing agent such as glass fibre, asbestos fibre, or mica. The hardenable resin which is applied by spraying is preferably a polyester resin prepared by inter-estification of a dibasic or polybasic acid e.g. phthalic, adipic, succinic or sebacic acid, with an alcohol, e.g. allyl or a substituted allyl alcohol. The polyester resin is alternatively prepared by esterifying an unsaturated polyhydric alcohol with an α#-unsaturated acid. Alternatively the resin is an epoxy resin. The resin is reinforced by the inclusion of e.g. glass fibres. In the embodiment shown a motor car body comprises two parts 1, 2, formed from shaped sheets of polymethyl methacrylate, the upper part 1 being basically transparent but coloured over part of its area, and the lower part 2 being opaque or translucent and formed with strengthening ribs.
Patent GB-833608-A (GB)
Title: Improvements in dust-prevention means for fettling benches
Inventor: PALMER JAMES MORRIS
IPC: F24F9/00
Filed: 1957-12-13
Abstract: 833,608. Confining dust generated in industrial processes. BRITISH CERAMIC RESEARCH ASSOCIATION. Dec. 12, 1958 [Dec. 13, 1957], No. 38926/57. Class 8(2). Ceramic dust generated during fettling a relatively large clay article e.g., a lavatory pedestal 14 is conbined by a gentle stream of clean air issuing downwardly and towards the operator 18 from a funnel 20 and the so conbined particles fall through apertures in the bench top 11 into a receptacle 15. The funnel contains a plurality of coaxial air distributing cones and has a perforated base plate 23, Fig. 1, (not shown).
Patent GB-1449142-A (GB)
Title: Data processing system
IPC: G06F3/0489
Filed: 1972-08-22
Abstract: 1449142 Checking stored data GROOVE CONSULTING CO Ltd KE GROVES ANGROOM and K F SEABROOK 22. Nov 1973 [22 Aug 1972] 39005/72 Heading G4M Documents 1 are photographed on to microfilm 3 or microfiches or aperture cards and the visual information on these is converted using a flying spot scanner into a video signal which is stored on a video disc 6. Two sets of monitor screens 7a, 8a, 9a and 10a, 11a, 12a have associated keyboards 7-12 with a keyboard and monitor screen in one set having an associated keyboard and monitor screen in the other set. Data from the disc 6 is fed to a monitor screen in one set and data keyed in by an operator at the keyboard associated with the monitor screen is compared with data obtained from the store and the data from the keyboard is stored in memory 6. Data is also fed to the associated monitor screen in the other set and a different operator keys in data at its associated keyboard. The keyboard data is then compared character by character with the data from the keyboard of the other set, e.g. data from keyboard 7 and keyboard 10 are compared and if all comparisons are valid data from the disc 6 and verified data, which may be updating, are stored in disc 13 and magnetic tape 14. The comparisons between keyboard entered data and stored data may be coarse to determine, e.g. that the operator is considering the correct record in a batch or the correct field, account number or the like. The data entered by the operator can also be displayed on the screen.
Patent GB-932209-A (GB)
Title: Improvements in and relating to data stores
Inventor: BINGHAM KENNETH CHARLES ARTHUR
IPC: G11C7/00
Filed: 1960-11-14
Abstract: 932,209. Magnetic storage apparatus. GENERAL ELECTRIC CO. Ltd. Jan. 15, 1962 [Nov. 14, 1960], No. 39061/60. Class 40 (9). A matrix panel for a three-co-ordinate data store comprises an aluminium substrate carrying magnetic thin film to provide storage areas 2, Fig. 1, two sets of parallel drive conductors 6, 7 crossing the storage areas of the magnetic thin film at right angles to one another, a pickup conductor 3 (see plane 1b), and an inhibit conductor (see plane 1c) in the form of a flattened helix enclosing the magnetic thin film and having its turns inclined by 45 degrees to the drive conductors of both sets. The pickup conductor is associated with all the storage areas of a panel and crosses all the areas along the rows so as to be parallel to their easy axis of magnetisation. The pickup conductor has one end connected through a resistor 5 to the aluminium substrate and the other end connected to a gate 4a-4d which prevents the transmission of spurious signals. In the three co-ordinate store shown in Fig. 1, the drive windings extend in series through the panels, and writing in any panel is prevented by pulse-energizing the associated inhibit winding during the writing phase. To write binary one values in an uninhibited panel, selected co-ordinate conductors 6 and 7 are energized coincidentally from pulse sources 8 and 9. The same conductors are pulsed in the reverse sense to read out the stored information and at the same time gates 4a-4d are opened by a pulse from generator 11. A single magnetic film formed of 80% nickel, 17% iron and 3% cobalt may be used for each panel or each storage area may comprise a separate film. The films are formed by vacuum evaporation in the presence of a polarising field, and are in contact with the pickup conductor which is formed in thin aluminium foil shaped by a photo etching method on a surface of an insulating flexible film such as polyethylene terephthalate. The pickup conductor is insulated by anodising. When applied to the magnetic thin films the flexible backing may be removed from the foil. The same process is used to form the drive conductors which are assembled on top of the pickup conductor. The assembly 14 is then sandwiched between two boards carrying parallel conducting strips 12, 13, Fig. 3, and the inhibit winding is formed by joining the ends of these conductors so as to provide a flattened helix encircling the magnetic film and the other circuit conductors. Specification 905,340 is referred to.
Patent GB-1415036-A (GB)
Title: Separation of co2 from gas mixtures
IPC: C01B32/50
Filed: 1973-08-20
Abstract: 1415036 Carbon dioxide separation BENFIELD CORP 20 Aug 1973 [8 Sept 1972] 39330/73 Heading C1A An aqueous solution for absorbing carbon dioxide from gas mixtures comprises 15 to 40% by weight potassium carbonate K 2 CO 3 , a sodium or potassium borate, and a sodium or potassium salt of a vanadium oxyacid wherein the solution has a proportion of vanadium oxyacid salt of from 0À5 to 5% by weight of equivalent V 2 O 5 , a weight ratio of at least 1À5 : 1 of borate equivalent KBO 2  to vanadium oxysalt equivalent V 2 O 5  and a proportion of borate of from 2% to 15% by weight equivalent KBO 2 . Preferably the weight ratio of equivalent KBO 2  to equivalent V 2 O 5  does not exceed 15 : 1, and desirably is in the range of 25 : 1 to 10À1. A preferred solution contains 20 to 35 % by weight K 2 CO 3 , 4 to 10% by weight equivalent KBO 2 , 0À8 to 3% by weight of equivalent V 2 O 5 , and the weight ratio of equivalent KBO 2  to equivalent V 2 O 5  is at least 2À5 : 1. Other additives may be present, e.g. defoaming agents and corrosion inhibitors. Carbon dioxide is absorbed from gas mixtures, including those containing a substantial concentration of oxygen, by contacting the gas mixtures with the solution, suitably using a continuous absorption cycle having an absorption stage and a regeneration stage in which at least the major part of the absorption is carried out a temperature in the vicinity of the atmospheric boiling temperature of the solution and at a superatmospheric pressure and in which the regeneration takes place by steam-stripping at a substantially reduced pressure.
Patent GB-942126-A (GB)
Title: Improvements relating to clips, particularly hair clips
IPC: A45D8/20
Filed: 1962-10-17
Abstract: 942,126. Clips. REINER INDUSTRIES Inc. Oct. 17, 1962, No. 39374/62. Heading E2B. [Also in Division A4] A clip comprises first and second members 10, 12 the first member 10 including an end wall 18 and a pair of arms 14, 16 of different lengths providing a bight between the arms one of which provides a finger-grip 21 and a clip portion 16, the second member including a second clip portion 32 and a second finger-grip 34, means supporting the second member on the shorter arm of the first member with the second clip portion 32 superposed over the first clip portion 16 and with spring means 26 urging these portions together, an acute angled corner 20 being formed at the junction of the end wall 18 and the first finger grip 21 to inhibit slippage from the fingers of a user. As shown applied to a pin curl hair clip, the members 10, 12 are pivoted together by a stud and socket connection 30, 38 and an edge 24 of a cut-end 22 in the member 10 provides additional grip at the finger grip 21. The spring means 26 which consists of a spring tongue extending from the arm 14 and extends through a slot 36 in the finger grip 34, engages a protruberance 40 on the member 12 in the gripping condition of the clip, but rides over the protruberance as the clip is opened, whereby to prevent overstressing the spring tongue. In another arrangement, Fig. 5 (not shown), the cut-out 22 is replaced by a circular hole adjacent the wall 18 and the spring means 26 consists of co-operating spring tongues on the arm 14 and finger grip 34 respectively. The clip may be used in combination with or a hair roller.
Patent GB-854798-A (GB)
Title: Improvements in or relating to air supply regulators
IPC: B60G17/052
Filed: 1958-12-08
Abstract: 854,798. Vehicle level control valves. BOSCH G.m.b.H., R. Dec. 8, 1958 [Dec. 7, 1957], No. 39401/58. Class 108(2). A regulator for controlling the air supply to vehicle air springs is operated by a lever 16, the movement of which is transmitted to a valve closure member 35 via a clutch 18, 19, 20. The latter is adapted to transmit only a limited torque. A flanged disc 20 rigid with the lever 16 is recessed to engage balls 23 which also engage recesses in a driven disc 19. A recess 32 in the disc 19 engages a collar 34 on the member 35 with predetermined lost motion. A recess 33 of the disc 19 engages a projection 75 carried by a dashpot piston 66. The valve closure member 35 is urged by a spring 58 into seating engagement with a valve member 48 which also seats under action of a spring 50 on a seat 44 of the regulator housing. In operation, on defection of the member 35 to the left (as viewed in Fig. 4) resulting from movement of the lever 16 due to increased vehicle load, the valve 48 while remaining seated on the member 35 is lifted off the seat 44. A recess 54 in the member 35 then connects a housing 45 to the left of the valve 48 (and which is connected at 53 with a source of air pressure) with a recess 55 connected via a socket 57 with the vehicle springs. On movement of the member 35 in the opposite direction, on decreasing vehicle load, air can pass from the vehicle springs via recesses 55 and 54 to a bore 41 within member 35 and thence to atmosphere via a filter 63.
Patent GB-1362867-A (GB)
Title: Electro optical display devices using mixtures with very wide temperature ranges
IPC: C09K19/22
Filed: 1971-08-23
Abstract: 1362867 Liquid crystal compositions TEXAS INSTRUMENTS Inc 23 Aug 1971 [28 Aug 1970] 39404/71 Heading C4X  A nematic composition with an extended mesomorphic temperature range consists essentially of 4-ethoxybenzylidene-41-n-butylanilene, (preferably 30-65% by weight), 4-methoxybenzylidene - 4<SP>1 </SP>- aminophenylbutyrate (preferably 15-40% by weight), and bis-(4<SP>1</SP>-noctyloxybenzal-)-2-chloro-1,4-phenylenediamine (preferably 15-40% by weight). ¢-2% by weight of electric conductivity affecting impurities may be present. The composition may be used in a transmissive or reflective electrooptic display by virtue of its dynamic scattering properties.
Patent GB-1187120-A (GB)
Title: Protecting Adhered Joints of Containers from Weathering.
Inventor: DYER GERALD BENJAMIN
IPC: C09J175/04
Filed: 1967-08-29
Abstract: 1,187,120. Protecting adhered seams of bags. E.I. DU PONT DE NEMOURS & CO. 29 Aug., 1967, No. 39450/67. Heading B8K. [Also in Division B2] A seam in a container is secured by polyurethane adhesive and is protected from degradation outdoors by covering either with coloured ink or with a coloured sheet of film between the joint and the sunlight. The adhesive may be formed by addition reaction between polyisocyanates and glycols, polyesters or polyethers. A thermoplastics bag with its seams protected in this way may be formed by folding a flat sheet to form a tube with the front wall extended at one end and the rear wall extended at the other end to form flaps which are folded over and secured to close the bag. The invention may also be applied to protect the seams in a block bottom bag formed from a length of flat plastics tube.
Patent GB-1165023-A (GB)
Title: A Method for Producing Copolymers of Maleic Acid Mono-Ureides and Coating Composition Obtained Therefrom.
IPC: C08F8/14
Filed: 1966-09-05
Abstract: 1,165,023. Coated sheet material. COATES BROS. & CO. Ltd. 5 Sept., 1966 [13 Sept., 1965], No. 39579/66. Heading B2E. [Also in Division C3] An article is coated with a ureide copolymer which is produced by addition copolymerising maleic acid mono-ureide, with optionally maleic anhydride, and a copolymerisable unsaturated monomer. In the examples (1) a copolymer of maleic mono-ureide, styrene and butyl and ethyl acrylates in solution in methyl glycol (ethylene glycol monomethyl ether) and diacetone alcohol, together with TiO 2  is applied to a sheet metal and heated; the copolymer is also reacted with an epoxy resin and a melamine resin and used as a coating as before: (4) sheet metal is coated with a copolymer as in (1) with the butyl acrylate replaced by 4-hydroxy butyl maleate, in an aqueous solution also containing butyl glycol, the copolymer being neutralised with diethanolamine and also compounded with a melamine formaldehyde resin.
Patent GB-924662-A (GB)
Title: New pigment dyestuffs of the quinacridone series
IPC: C09B48/00
Filed: 1959-07-21
Abstract: The invention comprises asymmetrical quinacridones of the formula:- <FORM:0924662/IV(a)/1> in which A and B are aromatic rings at least one of which bears one or more substituents and symmetrical quinacridones of the formula:- <FORM:0924662/IV(a)/2> in which A and B each contain more than one type of substituent or at least one nitro group or at least two alkyl groups of not more than 4 carbon atoms or at least two alkoxy groups of not more than 4 carbon atoms or at least three halogen atoms, not more than two of the alkyl or alkoxy groups being in the positions 1, 4, 8 and 11.  Many examples are given.  The above quinacridones and quinacridone itself are obtained by heating the corresponding 2:5-diarylaminoterephthalic acid or its esters with polyphosphoric acid if desired in the presence of an organic solvent.  The pigments colour polyamides, polyesters, polyvinyl chloride, polypropylene, viscose, cellulose esters, and rubber in orange to blue shades.