baber/WOPTO huggingface dataset:
Patent GB-1393466-A (GB)
Title: Nematic liquid crystal displays for low voltage direct current  operation
IPC: G02F1/133
Filed: 1972-05-12
Abstract: 1393466 Liquid crystal compositions TEXAS INSTRUMENTS Inc 12 May 1972 [1 June 1971] 22381/72 Heading C4X [Also in Divisions H3-H5] In an electro-optic display device a layer of dynamic scattering liquid crystal material contains electrical conductivity modifying impurities such that the layer, or a 12Ám. thick layer of the material, supports a current density, of 0À5-3 ÁA/cm.<SP>2</SP> at 25‹ C. when 15 volts D.C. is applied between the major surface of the layer. As particularly described the impurities form 0À5-2% by weight of the material and may be added to pure liquid crystal material or be present by virtue of reduced purification of the liquid crystal material, e.g. in either instance, for a Schiff base nematic material, the impurity could be an amine or aldehyde used in the preparation thereof. Other additives are phydroquinone; 2,2<SP>1</SP>,4,4<SP>1</SP> - tetrahydroxybenzophenone; 2,4 - dehydroxybenzophenone; 2- hydroxy - 4 - methoxybenzophenone; benzoin; p - anisic acid; p - ethoxybenzoic acid; 2- dodecylisoquinolinium bromide; p - anisaldehyde; p - ethoxybenzaldehyde; aniline and p-n-butylaniline. Preferably the additive is a proton donor whereby long-lined radical anions, e.g. from a Schiff base nematic material, are neutralized and prevented from undergoing side reactions, for example with traces of water. The liquid crystal material may be thermotropic or lyotropic. The former include binary mixtures of Schiff bases and/or azobenzenes, in addition to the ternary mixtures listed in Specification 1,362,867; lists of suitable solutes and solvents are provided for lyotropic phases, preferred solutes being butyl-p-(p-ethoxyphenoxycarbonyl) phenyl carbonate and/or p-(p-methoxybenzylidene-amino) phenyl acetate and prepreferred solvents being p-alkylbenzylidene-p<SP>1</SP> alkylanilines with C 1  to C 5  alkyl groups, e.g. p - methylbenzylidene - p<SP>1</SP> - butylaniline.
Patent GB-1427175-A (GB)
Title: Polymer composition
IPC: C08L23/10
Filed: 1973-05-10
Abstract: 1427175 Polymer compositions SUMITOMO CHEMICAL CO Ltd 10 May 1973 [10 May 1972] 22419/73 Heading C3P Polymer compositions comprise (1) one part by weight of olefin/acrylic ester copolymer comprising 5 to 60 mole per cent of a C 3 -C 20  olefin which is unsubstituted or is substituted by halogen or cycloaliphatic or aromatic groups at a position other than the double-bonded carbon atoms, and 40 to 95 mole per cent of an acrylic ester and (2) 0À01 to 100 parts by weight of thermoplastic resin having a modulus of elasticity of 10<SP>3</SP> to 10<SP>5</SP> kg./cm.<SP>2</SP> at room temperature and being crystalline, or non- crystalline with a second order transition temperature of at least 10 C. The copolymer may be derived from isobutylene, propylene, butene- 1, butene-2, 2-methylbutene-1, 2-methylpentene-1, 4-methylpentene-1, pentene-1, hexene-1, octadecene-1, methallyl chloride, 2-methyl-4- chloropentene-1 or 2-methyl-4-phenylbutene-1 ; C 1 -C 8  alkyl, tolyl, benzyl, cyclohexyl, chloroethyl, vinyl, allyl, butenyl, crotyl, cinnamyl, 3<SP>1</SP>-cyclopentenyl, citronellyl, geranyl, norbornenyl methyl or #-chlorallyl acrylate; and optionally further monomers which may contain reactive groups, e.g. acrylic acid, acrolein, acryloyl halides and acrylamide; and may have an alternating structure. The thermoplastic resins may be polymers of olefins, styrenes, vinyl and vinylidene chlorides, methacrylic and vinyl esters, acrylonitrile and methacrylonitrile; and polyamides, polysulphones, polyesters, polycarbonates and polyacetals. Examples describe compositions comprising polypropylene and (1) isobutylene/n-butyl acrylate copolymer, and (2 and 3) isobutylene/2-ethylhexyl acrylate copolymer; (4) polystyrene and isobutylene/ ethyl acrylate copolymer; (5) polymethyl methacrylate and propylene/ethyl acrylate copolymer; (6) polyvinyl chloride and isobutylene/ ethyl acrylate copolymer and (7) polyacetal resin and isobutylene/n-butyl acrylate copolymer.
Patent GB-268220-A (GB)
Title: Improvements in the manufacture of hollow-ware by moulding
IPC: B28B7/18
Filed: 1926-09-11
Abstract: 268,220. Eclo Manufacturing Co., Ltd., and Leigh, A. L. Sept. 11, 1926. Moulding hollow-ware. - Handled hollow-ware, e.g. cups, jugs or vases, is moulded by means of an undivided outer die having a recess corresponding to the body and handle or handles and furnished with a transverse drawpin or pins to form the handle opening or openings. As shown, an undivided, outer die 1 is furnished with body and handle recesses 3, 4 and is formed with a transverse opening to receive a drawpin 15 adapted to form the handle opening. The inner die 6 is provided with a rim-forming portion 11 and is provided with a radial part 12, preferably detachable, adapted to form the upper portion of the handle.
Patent GB-1150132-A (GB)
Title: Improvements in or relating to Cutting Devices
Inventor: TAYLOR FRANCIS JOSEPH
IPC: A01G3/02
Filed: 1967-05-16
Abstract: 1,150,132. Horticultural knives. WESTALL RICHARDSON Ltd. 16 April, 1968 [16 May, 1967], No. 22605/67. Heading B4B. A device for cutting flower stems &c. comprises a pair of rigid members 2, 3 extending from a hinge 4, a blade 11 extending from the member 3 towards the member 2 which serves as an anvil for the blade and is concave on its side remote from the blade, for engagement by a user's thumb extending from the hinge, the member 3 being provided with a web 9 for engagement between the first and second fingers of the same hand. The member 2 is preferably in the form of a tube 5 having a flattened anvil portion 7. The blade is built into the web 9 which is preferably moulded round the back of the blade and interlocked therewith through holes in the blade. A spring may be provided to effect separation of the blade and anvil. The web 9 is provided with flanges 8 and with a head 10. The hinge 4 may be attached to separately formed members 2, 3 or the body of the device may be formed as one moulding thinned down at the junction between the members 2, 3 to form an integral hinge.
Patent GB-427723-A (GB)
Title: A process for the production of medical and cosmetic preparations and disinfectants
IPC: A61K47/12
Filed: 1933-08-14
Abstract: Solutions in organic solvents of solid substances for medicinal, disinfectant and cosmetic purposes are absorbed in compositions obtained by combining higher fatty acids such as stearic acid and bases such as ammonia, caustic soda or potash and the mixture is introduced into containers such as tubes, preferably provided with filters, from which the solution is obtained by pressure, leaving behind the fatty acid salt skeleton. Aldehydes and ketones may be added and are stated to allow a reduction in the quantity of fatty acid salt necessary. Specifications 340,575 and 370,392 are referred to.  The Specification as open to inspection under Sect. 91 includes examples in which ethyl alcohol, heptane, benzine and hexane are employed as solvents and acetone, decahydronaphthalene, pyridine, acetic ether, acetophenone, chlorthymol, camphor, benzaldehyde and paraffinum liquidum are dissolved substances.  This subject-matter does not appear in the Specification as accepted.ALSO:Solutions in organic solvents of solid substances for medicinal, disinfectant and cosmetic purposes are absorbed in compositions obtained by combining higher fatty acids such as p  stearic acid and bases such as ammonia, caustic soda or potash (soaps) and the mixture is introduced into containers such as tubes, preferably provided with filters, from which the solution of the solid agent is obtained by pressure, leaving behind the fatty acid salt skeleton.  Aldehydes and ketones may be added and are stated to allow a reduction in the quantity of fatty acid salt necessary.  Examples describe the absorption in an ammonium stearate skeleton of a solution of chlorocarvacrol in hexane and acetone, thymol in chloroform and camphor in acetone. Specifications 340,575 and 370,392, [both in Group III], are referred to.  The Specification as open to inspection under Sect. 91 includes examples in which ethyl alcohol, heptane, benzine, and hexane are employed as solvents and acetone decahydronaphthalene, pyridine, acetic ether, acetaphenone, chlorthymol, camphor, benzaldehyde and paraffinum liquidum are dissolved substances.  This subject-matter does not appear in the Specification as accepted.
Patent GB-376059-A (GB)
Title: Improvements relating to surgical and like needles
IPC: A61B17/06
Filed: 1931-08-13
Abstract: 376,059. Se wing-needles. PARRY, W. H., Ty Newydd, Castle Street, Carnarvon. Aug. 13, 1931, Nos. 22877, 23487, and 24895. [Class 112.] A surgical needle 1 has a clamping ring 4 at its end for securing the unknotted end of a suture 2. The needle end may be split as at 3, Fig. 1, so that the ring 4 nips the suture between the limbs formed by the slit when slid towards the end. The needle may have a roughened jaw 9, Fig. 3, the suture being gripped between this surface and the ring. The end of the needle may be reduced so that the ring is flush with the surface of the needle.
Patent GB-1038035-A (GB)
Title: Improvements in tubular bodies
IPC: F16L9/16
Filed: 1963-06-07
Abstract: 1,038,035. Making tubes. M. M. YOUNG. June 7, 1963 [June 8, 1962; Sept. 18, 1962], No. 22901/63. Heading F2P. [Also in Divisions B5 and B8] A machine 10 for manufacturing laminated tubular bodies comprises two rolls 12, 14 carrying a strip 16 of waterproof material, for example aluminium foil, and a strip 18 of paper, cardboard or chipboard respectively (Fig. 1). Adhesive is applied to the strip 16 by an applicator 22 and the strip 18 is fed through a heater 20 to be dried. The strips are then guided and rolled together by means 28, 24, the strip 16 being subsequently folded about the strip 18 by a folder 30. The guide 28 also dispenses a tear string 100 being a narrow flat ribbon of nylon between the two layers. The laminate 32 so formed is then passed over a second adhesive applicator 62 and thereafter the laminate is guided and affixed to a second laminate 54, fabricated in the same manner as laminate 32 but having no tear string. The second laminate comprises a waterproof layer 40 and a paper or the like layer 38. The longitudinal edges of the two laminates 32, 54 are staggered with respect to each other such that, on the passage of the laminates through a folder 70 which includes a mandrel, the longitudinal edges of the laminates are brought into abutment, the joint of one laminate being staggered with respect to the joint in the other. Adhesive is applied to the edge faces of the laminates in the folder 70 (Fig. 4, not shown). Pressure is then applied to the formed tubular body by member 80. The detection of a mark on the tubular body by an electric eye 82 actuates a cutter 84 which is of a type which reciprocates at the same velocity as the tubular body to detach a stick of container bodies 86. The mark is provided between printed labels on the strip 40. The stick of container bodies may then be cut into individual containers by a plurality of rotating knives mounted on a common shaft (Fig. 8, not shown). The tubular body may be fabricated from three or more layers of laminates whence the inner and outer layers are fabricated as above, the middle layers having their exposed edge surfaces only covered by waterproof layers (Fig. 6, not shown). The waterproof layer is of the order of 0À001 to 0À002 inches thick and the paper or the like strip several times thicker. The laminates may be formed by passing a substrate strip of paper or the like material through an evacuated chamber to be coated with a metal film such as a film of aluminium.
Patent GB-1197255-A (GB)
Title: Captive Nut Assembly
Inventor: OTTESON CHRISTIAN SHELDON
IPC: F16B37/04
Filed: 1968-05-14
Abstract: 1,197,255. Captive nuts. ELECTRIC REGULATOR CORP. 14 May, 1968 [14 Nov., 1967], No. 22906/68. Heading F2M. A captive nut assembly comprises a nut 50, a nut support bracket 64 adapted to be secured to a detachable member 18, said nut having an axially elongated body rotatable and axially movable relative to said bracket and a flange 76 to prevent escape of the nut from the bracket. A coiled spring 68 is secured at one end to the bracket and the other end engages against the flange 76 formed on one end of the nut, the spring urging the nut towards a screw 62 projecting from a fixed member 36. One end of the nut is formed with cylindrical steps, the smaller of which 78 receives a washer-like disc to form the flange 76. Said one end of the spring is fixed to the bracket by turning over the corners of the bracket. The cylindrical end of the nut is formed with a counterbore 84.
Patent GB-754683-A (GB)
Title: Improvements in the catalytic cracking of hydrocarbon oils
IPC: C10G11/18
Filed: 1954-08-06
Abstract: <PICT:0754683/III/1> In a heat-balanced process for cracking hydrocarbon oils boiling within or above the gas oil boiling range by employing the fluidized catalyst technique, two separate streams of oil vapours containing suspended regenerated catalyst are introduced into the reactor, viz. (1) vapours of fresh feed oil mixed with a minor proportion of regenerated catalyst, the mixture being at a temperature below the desired reactor-temperature, and (2) vapours of recycle gas oil, separated from the cracked products, mixed with a major proportion of regenerated catalyst, the mixture being at a temperature above the desired reactor-temperature.  The relative amounts of the two streams should be such that the desired reactor-temperature is obtained when they unite to maintain the fluid catalyst bed in the reactor.  The apparatus shown comprises reactor 1, regenerator 2, fractionator 3, and gas oil side-stripper 4.  Gas oil, obtained by flash distillation of topped crude petroleum, is introduced into the system through line 12; and catalytically cracked gas oil is recycled from side-stripper 4 by pump 13 and line 14. Regenerated catalyst (68 per cent) at a temperatture of 1100 DEG F. is withdrawn from regenerator 2 through standpipe 7; and the remaining 32 per cent of the hot regenerated catalyst is withdrawn through standpipe 6.  The straight-run gas oil is injected into the bottom of riser 10, wherein it mixes with and is vaporized by the hot catalyst from standpipe 6; and the mixture, at a temperature of 800 DEG -875 DEG F., passes up riser 10 into reactor 1.  The recycle gas oil is mixed with hot catalyst from standpipe 7; and the mixture, at a temperature of about 1000 DEG F., passes up riser 11 into the reactor.  The recycle rate is maintained at about one-half of the virgin feed rate; and this gives a temperature of 900 DEG F. in the reactor.  In cases where the amount of fresh feed would be in excess of the amount vaporizable by the given stream of catalyst, a portion of the feed is fed through line 15 directly into the fluidized bed in the reactor.
Patent GB-455526-A (GB)
Title: Improved bond for silica bricks and the like
IPC: C04B35/14
Filed: 1935-08-15
Abstract: In the manufacture of silica bricks, magnesium orthosilicate found in olivine and other minerals is added to the silica to form a bond. The mixture is moulded, dried, and burnt at about 1400 DEG  C.  The fired bond may be magnesium metasilicate formed by reaction of the orthosilicate with the silica.  In an example, a raw mixture comprises 98 parts of quartzite and 2 parts of olivine.
Patent GB-424342-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus or the like
IPC: A43D95/06
Filed: 1933-08-17
Abstract: 424,342. Dispensing liquids. BRITISH UNITED SHOE MACHINERY CO., Ltd., Belgrave Road, BARNETT, W., Newlyn, Vicarage Lane, Humberstone, and O'KEY, A. R., 6, Blanklyn Avenue, East Park Road, all in Leicester. Aug. 17, 1933, No. 22960. [Class 116] [See also Group II] Small quantities of liquid, for example, ink or stain for application to shoes, are delivered into a tray 14 by operation of a valve 29 mounted in the side of a container 12 in which the liquid is stirred by a manually operated stirrer 25, 26 constructed so that the liquid adjacent the valve is agitated. The outer and inner blades of the stirrer are shaped to move the liquid inwardly and outwardly respectively. The container is provided with a rim engaged by lugs 18 on the base member 10 to which it is clamped by a screw 20, and the tray is shaped to facilitate use by separate operators by the provision of a corresponding number of wiping bars 40 and supports 39 for brushes. In lieu of the container 12 a casing having a valve member 29, 30 and a cover with the stirrer 25, 26, 27 may be employed in conjunction with a cylindrical container in which the liquid is supplied.
Patent GB-838268-A (GB)
Title: Improvements relating to superstructures for motor vehicles
IPC: B60J5/04
Filed: 1958-07-17
Abstract: 838,268. Doors for passenger vehicles DAIMLER-BENZ A. G. July 17, 1958 [Aug. 2, 1957], No. 22984/58. Classes 103(2) and 103(4). A motor vehicle has doors 10, 11 hinged at 12, 13 on posts of the body 14 and which extend with their upper portions 15, 16 into the curved roof 17. The upper edges 18, 19 of the doors are inclined to the horizontal and to the central longitudinal vertical plane of the vehicle, the inclination to said plane being such that the portions 15, 16 form triangles whose apexes 20, 21 lie in the regions of the rear edges of the doors. The inclinations of the upper edges of the doors also are such that their prolongation approximately intersect the axes of the hinges or the inclination of the upper edge of the front door may differ from that of the rear door.
Patent GB-405214-A (GB)
Title: Synchronizing device for claw clutches, more particularly for use in change speed gears
IPC: F16D23/06
Filed: 1933-08-18
Abstract: 405,214. Claw clutches; variable - speed gearing. REGGIO, F. C., 17, Rue J. B. Dumas, Paris. Aug. 18, 1933, No. 23129. Convention date, Aug. 23, 1932. [Class 80 (ii).] In a claw clutch comprising an externallytoothed member 27 slidable axially into engagement with an internally-toothed member 23, rods 32 slidable in axial holes 31 in the member 27 carry at one end a conical friction ring 35 adapted to co-operate with a conical friction surface on the member 23. The rods are normally maintained in central position, in which they bear in the holes only with their central enlarged portions 32<1>, by spring-loaded balls 33 engaging notches in the rods. As the member 27 is moved towards the member 23, the ring 35 first comes into engagement with the conical surface of the member 23. If the speeds of the two members differ, torque is transmitted through the friction surfaces, tending to produce synchronisation but causing the rods 32 to be wedged in the holes, thus preventing further axial movement of the member 27. Upon the occurence of synchronism, the wedging action ceases and the member 27 can then be moved further to effect clutch engagement. During such further movement, an enlarged end portion 32<11> of each rod passes into the hole 31, and the balls 33 ride out of the notches in the rods, thus releasing pressure from the friction surfaces. In the four-speed gear box shown, the rods 32 in the double clutch member 27 splined on the driven shaft 11 have a friction ring at each end, co-operating respectively with a conical friction surface on the member 23 integral with the driving shaft 3 and with a conical friction surface 25 on the third-speed gear wheel 10 loosely mounted on the shaft 11. Similar rods 42 arranged in holes in a splined clutch member 15, which also acts as the first-speed gear wheel, carry at one end a conical friction ring 44 co-operating with a conical friction surface on the loose second-speed gear wheel 13, while the other end co-operates with an abutment 45 carried by the shaft 11.
Patent GB-1505601-A (GB)
Title: Process for the production of glycidyl methacrylate
IPC: C07B61/00
Filed: 1976-06-04
Abstract: 1505601 Preparation of glycidyl methacrylate DEUTSCHE GOLD-UND SILBER-SCHEI. DEANSTALT 4 June 1976 [5 June 1975] 23148/76 Heading C2C Glycidyl methacrylate is prepared by transesterifying methyl methacrylate with glycidol in the presence of a polymerization inhibitor and a transesterification catalyst comprising at least one alkali metal cyanide, cyanate or thiocyanate. The potassium salts are preferably used at the catalyst. Reference has been directed by the Comptroller to Specification 1,441,085.
Patent GB-825565-A (GB)
Title: Improvements relating to magnetrons
Inventor: PETERS PHILIP H
IPC: H01J25/56
Filed: 1956-07-26
Abstract: 825,565. Magnetrons. GENERAL ELECTRIC CO. July 26, 1956, No. 23149/56. Class 39(1). A magnetron with a cylindrical array of anode segments 22 has a spiral cathode 20 supported by and surrounding the ends of two posts 17, 18, and axially offset with respect to the cylindrical array. The end 19 of the post 18 is of reduced diameter, but the diameter of the main body of the post equals the outer diameter of the spiral. The cathode may be of thoriated tungsten and the posts of copper and the cathode fits the posts tightly. End portion 19 of post 18 absorbs the heat produced by returning electrons without producing secondary emission. The effective part of the cathode may be wholly within the interaction space. The envelope assembly includes ceramic cylinders coated with titanium hydride bonded together in a single operation by dipping into molten solder during evacuation. The magnetron shown is of the interdigitating anode segment type. Specification 703,656 is referred to.
Patent GB-634437-A (GB)
Title: Improvements in or relating to electrical automatic tuning unit
IPC: H03J7/30
Filed: 1946-08-06
Abstract: 634,437. Electric control systems. COLONIAL RADIO CORPORATION. Aug. 6, 1946, No. 23247. Convention date, Oct. 29, 1942. [Class 40 (i)] A circuit L4, C1 forms part of a signal channel (not shown) and is tuned to the desired frequency f<SP>1</SP>, f<SP>2</SP> or f<SP>3</SP> by injecting from a local source a frequency f<SP>1</SP>, f<SP>2</SP> or f<SP>3</SP> to produce an output sufficient to block valve 6 to de-energize relay 7 and stop a motor M rotating the shaft of condenser C1. As applied to a transmitter, the local frequency source feeds harmonic amplifiers which are tuned by the motor, Fig. 3 (not shown); as applied to a receiver, the local frequency source feeds harmonic amplifiers whose output constitutes the heterodyning oscillation and whose tuning circuits are ganged with the radio-frequency tuned circuits and are adjusted by the motor, Fig. 4 (not shown).