baber/WOPTO huggingface dataset:
Patent GB-1213419-A (GB)
Title: Dioptric system
Inventor: METZ JEAN DE
IPC: G02B3/00
Filed: 1968-11-04
Abstract: 1,213,419. Lenses. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 4, 1968 [Nov. 8, 1967], No.52169/68. Heading G2J. A centered dioptric lens 10 for particular use with lasers consists of a planar exit surface 12 and an aspheric, preferably ellipsoidal entrance surface 14 whereby coma is substantially corrected. For a field angle of 0À5 to 1À0 degrees, the lens has flat peripheral edges to secure the lens during shaping thereof, and an axial hole 18 of diameter between #th and 1/20th of the focal length, extending from the exit face 12 a distance which is at least half of the axial thickness whereby lens fracture due to energy concentration of the light rays which are successively reflected internally from the exit and entry surfaces 14, 12 is prevented by dissipation within the hole 18, the lens being spaced from the laser source at a distance greater than the distance of the pseudofocus formed by reflected rays such as 22 from the entrance surface 14 to prevent breakdown of the laser pulse. The lens is manufactured from a blank having a plane rear surface 12 and a front hemispherical face 20 tangent at the axis with surface 14, surplus material being cutaway by an endmill driven by displacement of a runner wheel on a guide cam, the stepdown ratio between cam and lens being set at approximately 100:1, to rough form the lens to within 0À5Á, final shaping being achieved by a flexible polishing rubber. In one embodiment a lens for use in the infrared region is made of a shape identical to that of lens 10 but from a material whose refractive index in visible monochromatic light has the same value as that possessed in the infrared by the material which is to be used in the real system, so that the first lens can be tested in the visible monochromatic light, and the infrared lens moulded by virtue of the optical identity between the two lenses. In a further embodiment a second lens is adapted to surround a portion of the lens from the edge thereof and extending towards the axis, having an axial hole extending through to the entrance surface 14, the composite lens being cut from a single piece of glass or preferably by cementing the two lens elements together. Data is provided for three examples.
Patent GB-1535105-A (GB)
Title: Tyre cord with a synthetic fibre core
IPC: B60C15/04
Filed: 1976-12-15
Abstract: 1535105 Tyre cord; non-metallic core wound with metal strands GOODYEAR TIRE & RUBBER CO 15 Dec 1976 [16 Jan 1976] 52284/76 Heading D1T A cord for tyre reinforcement comprises metal strands helically wound about a central, non-metallic core whose tensile strength, i.e. stress at rupture, is substantially equal to that of each strand. The core may be of aromatic polyamide, e.g. a multifilament yarn or strand, and the metal strands may each comprise steel wires twisted together in a direction opposite to the direction of twist of the strands about the core.
Patent GB-1477229-A (GB)
Title: Stacking of bales
Inventor: SPINDLER JOHN EDWARD
IPC: B65G57/30
Filed: 1974-12-04
Abstract: 1477229 Bailing sledges BRITISH LELY Ltd 1 Dec 1975 [4 Dec 1974] 52532/74 Addition to 1375042 Heading B5F [Also in Division B8] A bale stacking implement otherwise as disclosed in the Main Patent Specification has a rear gate mechanism 31 for releasing the stacks formed as the implement advances comprising two doors which are pivoted rearwardly for release. A support plate 100 for the stack is also provided, and is attached by pairs of pivotable links 102A, 102B to lugs 103A, 103B extending forwardly of uprights 37. The links 102A are pivotably attached by rods 104 to the respective doors, so that as the doors open, they draw the plate 100 towards the stack to facilitate its release. Adjustments may be possible to the length of travel of the plate 100 or its inclination at the end of its movement.
Patent GB-529078-A (GB)
Abstract: 529,078. Gun sights. BOULTON PAUL AIRCRAFT, Ltd. (Soc. d'Applications des Machines Motrices). May 20, 1939, No. 15095. [Class 92 (ii)] Relates to sights more particularly for aircraft guns mounted for training over a wide angle by a gunner occupying a fixed seat behind the gun. According to the invention, in order to avoid undue movements of the gunner in sighting the gun, two sights 7 are mounted one on each side of the trainable gun carriage 1 by means of a sight bar 9 pivoted at 10 to the carriage for elevation in unison with the gun through the agency of links 17, 18. The sights are used alternately by the gunner in sighting the gun to the right or left of the median position.
Patent GB-1375736-A (GB)
IPC: A61B5/00
Filed: 1971-11-16
Abstract: 1375736 Electro-chemical analysis F HOFFMANN-LA ROCHE & CO A G 16 Nov 1971 [31 Dec 1970] 53049/71 Heading G1N A "printed circuit" electrode construction comprises a thin layer U-shaped anode 13 (e.g. of silver) surrounding a U-shaped cathode 20 (e.g of gold or platinum) and a reference-electrode strip of silver-silverchloride. These thin layers are deposited on a wafer 11 e.g. of silicon. A thermistor 25, for temperature compensation, may be formed on the other side of the wafer. The electrodes may be mounted in a casing, having an oxygen-permeable diaphragm Fig. 2 (not shown), which in turn is mounted in a catheter, illustrated as inserted in a vein Fig. 3 (not shown).
Patent GB-1057966-A (GB)
Title: New pesticidal ureas and thioureas, a process for their preparation and agents containing them
IPC: C07C239/00
Filed: 1965-12-14
Abstract: Cationic, non-ionic and anionic detergent compositions contain disinfectant compounds of formula <FORM:1057966/C4-C5/1> wherein X = O or S; one of R1 and R2 may be a single bond, R1 and R2 being otherwise C1-4 alkylene (optionally hydroxylated); one of R3 to R8 is CF3 and the others are H, halogen, alkyl, alkoxy, alkylthio, CF3, CN, NO2, SCN, SO2NA2 or CONA2 (A = H or C1-4 alkyl); R9 and R10 are H or C1-4 alkyl.  The compounds may be used together with 20-50% alkali metal tripolyphosphate, or in presence of an alkali metal salt of carboxymethyl cellulose.ALSO:The invention comprises compounds of formula <FORM:1057966/C2/1> wherein X=O or S; one of R1 and R2 may be a single bond, R1 and R2 being otherwise C1- 4 alkylene (optionally hydroxylated); one of R3 to R8 is CF3 and the others are H, halogen, alkyl, alkoxy, alkylthio, CF3, CN, NO2, SCN, SO2NA2 or CONA2 (A=H or C1- 4 alkyl); R9 and R10 are H or C1- 4 alkyl.  The compounds are prepared by forming the urea or thiourea link between the two benzene residues by known condensation or addition reactions.  Numerous examples are provided.ALSO:Seeds are treated with a pesticidal substituted urea or thiourea of formula:-  <FORM:1057966/A1-A3/1> wherein X represents O at S; R1 or R2 represents a single bond or R1 and R2 both represent a linear or branched C1-4 alkylene radical (optionally hydroxylated); one of R3 to R8 is CF3 and the others are H, halogen, alkyl, alkoxy, alkylthio, CF3, CN, NO2, SCN, SO2NA2 or CONA2 (A representing H or C1-4 alkyl); R9 and R10 are H or C1-4 alkyl.ALSO:Pesticidal compounds which may be used e.g. for horticultural applications to protect keratinic material from insect attack and to disinfect cellulosic material have the formula: <FORM:1057966/A5-A6/1> wherein X = O or S; one of R1 and R2 may be a single bond, R1 and R2 being otherwise C1-4 alkylene (optionally hydroxylated); one of R3 to R8 is CF3 and the others are H, halogen, alkyl, alkoxy, alkylthio, CF3, CN, NO2, SCN, SO2 NA2 or CONA2 (A = H or C1-4 alkyl); R9 and R10 are H or C1-4 alkyl.  The usual surface-active agents and other additives may be used and the following other brocides are specified:-3,4-dichlorobenzyl alcohol, diisobutylphenoxye-thoxyethyl dimethyl benzyl ammonium chloride, cetyl pyridinium chloride, cetyl trimethyl ammonium bromide, halogenated dihydroxydiphenylmethanes, tetramethylthiuran disulphide, 2,2-thiobis (4,6-dichlorophenol), compounds containing SCCl3 groups 2-nitro-2 furpuryl codide, dichloro-, dibromo-, tribromo-, tetrachloro- and other salicylanilides, dichlorocyanuric acid, aliphatic thiuram sulphides and hexachlorophene.  When incorporated with conventional cosmetic materials, the compounds may be used in ointments, skin creams, mouth washes, and dentifrices.
Patent GB-1520080-A (GB)
Title: Electric switch devices
IPC: H01H1/08
Filed: 1977-06-02
Abstract: 1520080 Switches with mercury wetted contacts C A RENTON 2 June 1977 [21 Dec 1976] 53326/76 Heading H1N A switch with mercury wetted contact has its contacts in a sealed container filled with a non- conducting liquid. In Fig. 1 a glass container 11 is filled with silicone oil and contacts 12, 13 are controlled by an electromagnet acting on an armature 18. In Fig. 3 a rotary selector has a rotatable operating magnet 37 arranged to influence movable contacts 44 in a sealed container 3. In Fig. 2 (not shown) such a contact arrangement is operable by a magnet on a push-button of a keyboard.
Patent GB-1173005-A (GB)
Title: A Method of Constructing a Suspension Bridge
Inventor: KAWADA TADAKI
IPC: E01D11/02
Filed: 1966-11-29
Abstract: 1,173,005. Suspension bridges. KAWADA KOGYO K.K. 29 Nov., 1966, No. 53409/66. Heading E1G. A suspension bridge having concrete decking 10 on a hanger-supported girder structure 1 is built by a method which avoids final dead-load bending stresses in the girder. In the method described (a) the suspended girder structure is rivetted together in the required camber but with its ends spaced above its end abutment shoes 8A (Fig. 2, not shown); (b) the outer hangers are progressively lengthened (e.g. by turnbuckles 6, 7) so that the girder ends droop on to the shoes 8A - i.e. the girder is bent to an exaggerated camber (Fig. 3, not shown); and (c) the concrete decking is constructed on the girder so'that under its weight the girder is flattened to its original unstressed arch form. In an alternative method the suspended girder is built up with its ends resting on the abutment shoes 8A and is then bent to an exaggerated camber by shortening the central hangers.
Patent GB-1238280-A (GB)
IPC: C08F2/44
Filed: 1969-10-31
Abstract: 1,238,280. Insolubilized enzymes. MUANYAGIPARI KUTATO INTEZET. 31 Oct., 1969 [6 Nov., 19681, No. 53588/69. Headings C3H and C3P. In a process for the production of waterinsoluble enzyme and antigen preparations having high activity and stability, one or more water-soluble monomers are added to an aqueous solution of the enzyme or antigen, at least one of the monomers being able to cross-link during polymerization, and the system is then subjected to X-ray or gamma-ray radiation of 300 to 30,000 rad./hour intensity until at least 80% of the monomers become polymerized. In examples, trypsin is added to an aqueous solution of acrylamide and bisacrylamide which is then irradiated with X-rays in an argon atmosphere. A porous material such as porous polyvinyl chloride, porous polystyrene, urea-formaldehyde resin foam, polyvinyl alcohol foam, porous felt or cotton wool may be added to the mixture before polymerization.
Patent GB-1411660-A (GB)
Title: Process for producing a rubber composition
IPC: C08K5/09
Filed: 1973-11-19
Abstract: 1411660 Polyisoprene compositions KURARAY CO Ltd 19 Nov 1973 [2 Dec 1972] 53617/73 Heading C3P Vulcanizable rubber compositions having improved green strength are made by mixing together, at a temperature above 80 C., (a) maleinized cis-1,4-polyisoprene (or derivative thereof) having a bound maleic anhydride (or derivative thereof) content of 0.03-2.5 moles per 100 recurring isoprene units, (b) a compound of a Group II or IV metal and (c) sulphur. In examples, polyisoprene modified with maleic anhydride, and in one case then half-esterified with methanol, is mixed with zinc oxide together with other conventional rubber additives comprising carbon black, stearic acid, a phenolic anti-oxidant, and vulcanizing additives.
Patent GB-1164137-A (GB)
Title: Fire-Proof Material
IPC: F16J15/22
Filed: 1966-12-02
Abstract: 1,164,137. Joint-making packing. SOC. GENERALE DES PRODUITS REFRACTAIRES. 2 Dec., 1966 [2 Dec., 1965; 30 June, 1966], No. 64175/66. Heading F2B. [Also in Division D1] Heat-resistant material for making joints consists of a core of silico-alumina fibres enclosed in a slack braid of wires or asbestos yarns. The material may be of circular or flat crosssection. The core may also be reinforced internally by a thick wire of nickel- or chromiumbased alloy. A gasket is made by bending a piece of the material to the required endless configuration and welding together the ends of the internal reinforcing wire.
Patent GB-1248213-A (GB)
Title: A process for the production of dispersions of colloidal silver
IPC: G03C1/825
Filed: 1968-11-15
Abstract: 1,248,213. Colloidal silver. FUJI SHASHIN FILM K.K. 15 Nov., 1968 [15 Nov., 1967], No. 54453/68. Heading C1A. [Also in Division G2] Black or blue-black colloidal dispersions of silver are made by mixing (a) an aqueous alkaline solution of a hydrophilic colloid of pH 7 to 10 with (b) an aqueous solution of a water soluble silver salt and (c) from 0À005 to 0À7 mole of a water soluble manganous salt per mole of said silver salt, and reducing the silver salt by addition of at least 0À2 mole per mole of silver salt of an alkali metal sulphite such as sodium sulphite, and an organic reducing agent. The sulphite and reducing agent may be added together or the sulphite may be mixed first with the other components followed by addition of the reducing agent or the reducing agent may be added before the sulphite. Suitable manganous salts have a specified solubility and do not contain anions which might cause the precipitation of a silver salt, salts specified being manganous nitrate and acetate. The colloid is suitably gelatine, polyvinyl alcohol or water-soluble cellulose derivatives. The preferred silver salt is the nitrate and the preferred sulphite sodium sulphite. Specified organic reducing agents are hydroquinone, toluhydroquinone, catechol, monomethylaminophenol, 1 .phenyl-3 -pyrazolidone, paraphenylenediamine and ascorbic acid. The colloidal silver product may be stabilized by the addition of an organic thiol compound or a compound capable of readily decomposing to a thiol compound, those specified being 2- mercaptoimidazole, 2 - mercaptobenzoimidazole, 2 - mercaptobenzooxazole, 5 - carboethoxy - 2 - mercapto - 4 - methylthiazole, 2- mercaptothiazole, 3 - mercapto - 1,2,4 - triazole, 2 - mercapto - 5 - methylthio - 1,3,4 - oxadiazole, and 1 -phenyl - 5 -mercaptotetrazole.
Patent GB-1123720-A (GB)
Title: Vapor-impermeable coated polyolefin substrates
IPC: C08J7/048
Filed: 1966-12-06
Abstract: A method of coating a polyolefin substrate comprises applying p thereto a continuous coating of an ethylene-vinyl acetate copolymer, applying a solution of a vinylidene chloride copolymer in an inert organic solvent to said coating and evaporating the solvent to leave a continuous vapour-impermeable vinylidene chloride copolymer coating thereon.  The substrate may comprise a film, sheet, bottle, pipe, tube or laminate.  Specified monomers used in forming the vinylidene chloride copolymers are vinyl chloride, acrylonitrile, methacrylonitrile, acrylic acid esters, methacrylic acid esters, maleic acid esters, fumaric acid esters, itaconic acid esters, methyl vinyl ketone, vinyl acetate, styrene, dichlorovinylidene fluoride, butadiene, chlorobutadiene, isoprene and vinyl pyridine.  The ethylene-vinyl acetate copolymer may be applied by dipping, doctoring, spraying or gravure coating. Specified solvents for use with the vinylidene chloride copolymers are acetone, methyl ethyl ketone (or a mixture thereof with toluene), methyl iso-butyl ketone, cyclohexanone and tetrahydrofuran.  The example describes the coating of the interior surface of polypropylene bottles, the second coating being a vinylidene chloride-acrylonitrile copolymer.
Patent GB-1127510-A (GB)
Title: Combined material mixer and distributor
IPC: B22C5/04
Filed: 1966-12-12
Abstract: 1,127,510. Screw conveyers. L. A. LARSON. 12 Dec., 1966 [4 Jan., 1966], No. 55466/66. Heading B8A. [Also in Division B1] A mixer for foundry sand with a resin binder comprises a trough 12 having a shaft 17 carrying a screw, or angled blades 16. The trough is mounted on a pedestal (21, Fig. 1, not shown) to swing about a vertical axis and carries beneath it a conveyer (as shown, an endless belt 25) which is movable endwise on runners (see Figs. 1, 3, 4, 6 and 7, not shown) and can be retracted clear of the mixer discharge outlet 22 or pulled out by the handle 50 to receive material therefrom and discharge it, whereby the discharge point may be positioned along a plurality of arcs of different radius.
Patent GB-1325569-A (GB)
Title: Electromechanical transducer device
IPC: H04R1/46
Filed: 1970-11-24
Abstract: 1325569 Means for tuning musical instruments PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 Nov 1970 [27 Nov 1969] 55823/70 Heading G5J A device for tuning the three unison strings 5, 6, 7 of a piano individually comprises a forked member 2 having two legs adapted to clamp the outer strings (as shown in Fig. 1) or two adjacent strings (by inserting a leg between them) and a transducer which converts the oscillations of the free string into electrical signals. The transducer may be electromagnetic or electrostatic. The legs are provided with grooves 8 for a more secure grip. The legs may be made of plastics or rubber material and integral with the main body or alternatively may be formed from one or two resilient metal strips.
Patent GB-1285439-A (GB)
Title: An implement for working crop lying on the ground
Inventor: ZWEEGERS PETRUS WILHELMUS
IPC: A01D84/00
Filed: 1970-06-03
Abstract: 1285439 Haymakers P W ZWEEGERS 3 June 1970 [11 July 1969] 55830/70 Divided out of 1283469 Heading A1F A haymaker with two adjacent counterrotatable elements (wheels 4, 5) each carrying a circular array of crop-engaging tines has a crop separation means 42, 44 mounted forwardly and centrally of the two elements, for separating the crop thrown from the elements, and comprising tube 42 on which are mounted pins 44 whose free rear ends are bent alternately to the right and to the left. The front end of tube 42 is pivotably fastened to pivot pin 43 mounted on the left side of drawbar 6 and a lug 50 has a rod pivotably connected to it which lifts the separation means upwardly when the haymaker is moved through a left-handed curve so that it doesn't move the crop laterally. When turning, the left arm of U-shaped sub-frame 17 pushes rod 45 rearwardly and through a sleeve 46 pivotably mounted to the left side of drawbar 6, pulls chain 48 and hence spring-loaded rod 49. A lifting device may be provided for lifting the means 42, 44 on both left and right curves and the separation means 42, 44 may comprise a board or plate.
Patent GB-1529685-A (GB)
Title: Non-destructive testing
IPC: G10K11/35
Filed: 1974-12-31
Abstract: 1529685 Ultrasonic testing of articles BRITISH STEEL CORP 30 Dec 1975 [31 Dec 1974] 56193/74 Heading G1G In ultrasonic testing of a moving hot steel billet 10, the billet is repeatedly struck, as it passes, by a reciprocated test head 3 for a dwell time of less than 0À001 second during which a transmitting transducer 7 emits an ultrasonic pulse into the billett and the echo pulses denoting flaws and/or thickness of the billett are sensed by a receiving transducer 9 and displayed on oscilloscope 17. The transmitting transducer is triggered when the impact is detected by transducer 9 or by an additional transducer 14. The gain of amplifier 18 is controlled in dependence on the strength of the echo from the upper face of the billet, detected by transducer 7. Head members 4, 5 are spaced by an air gap 6 or an acoustic attenuator. Both transducers 7, 9 may be in notches such as 8 or both may be at the upper ends of members 4, 5. The dwell time is preferably in the range of 0À00025 to 0À0005 seconds.
Patent GB-1201720-A (GB)
Title: Artists palette with separate impressed wells and flanged cover
Inventor: BROWN DONALD
IPC: B44D3/02
Filed: 1968-03-25
Abstract: 1,201,720. Artists' palette. D. BROWN. 25 March, 1968, No. 56254/68. Divided out of 1,161,277. Heading B6P, An artists' palette A of plastics material and having impressed wells E, F, G, a thumb hold D and flanged rim H, is provided with a flanged cover (Fig. 1, not shown) which fits exactly over the palette to keep the contents of the wells separate from one another and to prevent rapid drying out of the paint.
Patent GB-1242129-A (GB)
Title: Type bar deflector for a selective printer
IPC: B41J7/40
Filed: 1968-11-27
Abstract: 1,242,129. Selective printing. CREED & CO., Ltd. 27 Nov., 1968 [30 Nov., 1967], No. 56282/68. Heading B6F. In a selective printer, type bars having projections 1 are selectively deflected in a direction C for impression by a deflector 4 having a deflector surface 4a terminating in a point 4b, the point 4b being protected by a resiliently mounted guide means 3 having a sloping surface 3d which slopes upwards from an edge 3b to the junction of two sloping edges 3a, 3e, the guide means 3 being mounted on a leaf spring (7, Fig. 2) and slidable within a fixed guide 6. The guide means are applicable to rotating type basket printer described in Specification 1,140,286.
Patent GB-1418696-A (GB)
Title: Tyre building machine
IPC: B29D30/30
Filed: 1973-12-05
Abstract: 1418696 Feeding elastomeric panels on to a conveyer belt GOODYEAR TIRE & RUBBER CO 5 Dec 1973 [12 Jan 1973] 56395/73 Heading B3A [Also in Division B7] In operation of a tyre building machine (see Division B7), panels P of tyre ply stock are dispensed from rolls 80L and 80R on to an endless conveyer belt 50 as trucks 87 carrying the rolls are traversed to and fro on a bridge member 100. Each roll 80L or 80R comprises alternate layers of liner 81, Fig. 3, and panels P. In use as a panel P is deposited on the belt 50, the liner is wound on to a roller 91, Fig. 3.
Patent GB-1213156-A (GB)
Title: Manufacturing filamentary silicon carbide crystals
IPC: C01B31/36
Filed: 1967-12-12
Abstract: 1,213,156. Silicon carbide whiskers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 Dec., 1967 [14 Dec., 1966; 8 March, 1967], No. 56404/67. Heading C1A. [Also in Division H1]  Filamentary silicon carbide crystals are grown on a substrate such as SiC, graphite or A1 2 0 3 , from a gaseous phase containing silicon and carbon, by means of a vapour-liquid-solid mechanism, in which iron is used as a solvent for the transmission of SiC from the gaseous phase to the substrate and the liquid phase is in the form of finely divided droplets on the substrate which are exposed to the gaseous phase at a temperature of at least 1150‹ C. The iron which may be pure iron, carbon steel or alloy steel may be applied to the substrate by brushing it on a superficially roughened substrate, by dusting with iron powder or by vapour deposition. The silicon- and carboncontaining gaseous phase may be produced from alkylhalogenosilanes or mixtures of hydrocarbons and silicon tetrahalides or a halogenosilane, e.g. SiHCl 3  in the presence of hydrogen. SiH 4  alone or in combination with a hydrocarbon can also be used. SiO 2  and carbon in a hydrogen atmosphere is preferred. In an example SiO 2  is introduced into a graphite crucible 4 which is covered with a plate-shaped lid 5, e.g. of SiC which acts as substrate and is rubbed with iron powder. The 8i0 2  reacts upon heating by means of an induction coil 8 in a hydrogen atmosphere with the carbon of crucible 4 to produce a silicon and carbon containing vapour, which is absorbed into the iron grains, which then melt and deposit filamentary SiC crystals, which grow in a hanging position on the substrate.