baber/WOPTO huggingface dataset:
Patent GB-1128909-A (GB)
Title: Improvements in or relating to voltage adjusting device
IPC: H01C10/42
Filed: 1965-10-06
Abstract: 1,128,909. Claw clutches; converting rotary to linear motion. W. PREH, [trading as PREH ELEKTROFEINMECHANISCHE WERKE JAKOB PREH NACHFOLGER]. 6 Oct., 1965 [17 Oct., 1964; 21 Dec., 1964; 29 Jan., 1965; 15 Feb., 1965; 23 April, 1965; 7 May, 1965; 28 May, 1965; 12 June, 1965; 2 July, 1965], No. 42473/65. Headings F2C and F2Q. [Also in Divisions H1, H3 and H4] A claw clutch for the tuning control of a television receiver (see Division H3) comprises a push-button 6 (Fig. 16) with four flared-out claws 6b for engagement with four lugs 37a on an extension of the tuning spindle 2. When the button is pressed in, a flange 7 first deforms a spring 9 upwards and then latches beyond its end. The flared-out claws will either enter the spaces between the lugs 37a or will meet them head-on and bend them inwards (Fig. 17, not shown). After 45 degrees rotation of the button, the ends will engage the lugs and the latter will spring out again (Fig. 19, not shown). When a different button is pressed it releases the latch of the previously operated one. The button may have an attachment for operating an auxiliary switch (Fig. 11) comprising a lug 17a on the screwed spindle 2, which engages three stepped portions of a slide 27 movable by a pin 28 in a groove 29. As the wiper moves along, it allows the slide to rise to a different height so that the end moves a flap 34 to operate the spring-loaded switch.
Patent GB-873010-A (GB)
Title: Improvements in or relating to rubber compounding
IPC: C08K5/053
Filed: 1959-12-15
Abstract: Cured elastomers are protected against heat ageing deterioration by the incorporation of a phenolic antioxidant and a non-polymeric hydrocarbon polyol having at least 3 alcoholic hydroxyl groups as its sole substituents.  The elastomers are exemplified by pale crepe natural rubber, polyisoprene having an essentially all-cis configuration, butadiene-styrene copolymer, polychloroprene, butadiene-2, 3-dimethyl butadiene copolymer, poly 2, 3-dimethyl butadiene, poly 2-chloro-3-methyl butadiene-1, 3, butadiene-dichlorostyrene copolymer, butadiene-monochlorostyrene copolymer, butadiene-a -methyl-styrene copolymer, butadiene-p-methoxystyrene copolymer, butadiene-dimethylstyrene copolymer, butadiene-dimethoxystyrene copolymer, butadienea -methylp-methylstyrene copolymer, butadienep-phenylstyrene copolymer, isoprenestyrene copolymer, isoprene-butadiene copolymer, 2-isopropyl butadiene-styrene copolymer, 2-ethyl butadiene-styrene copolymer, 2-n-amyl-butadiene styrene copolymer, polybutadiene, poly 2-ethyl butadiene, poly 2-isopropylbutadiene, poly 2-n-amyl butadiene, poly cis-piperylene, butadiene-1-cyanobutadiene copolymer, isoprene-chlorprene copolymer, poly 2-fluorobutadiene, butadiene- 2-methyl- 4-methoxy- 5-isopropyl styrene copolymer, butadiene-acrylonitrile copolymer, butadiene-methyl isopropenyl ketone copolymer, chloroprenemethylisopropenyl ketone copolymer. Examples of the phenolic antioxidant are 2, 21-methylene bis(6-tert. butyl-4-methyl phenol), 2, 21-methylene bis (6-tert. butyl- 4-ethyl phenol), 2, 21-methylene bis [4-methyl-6- (1, 1, 3, 3-tetramethyl) butyl phenol], 4, 41-bis (2-tert. butyl- 5-methyl phenol) sulphide, 4, 41-butylidene-bis (2-tert. butyl- 5-methyl phenol), 2, 21-methylene bis (4, 6-dimethyl phenol), 2-tert. butyl-4 (4-tert. butyl phenyl) phenol, 2-tert. butyl- 4-phenyl phenol, 2, 6-di benzyl- 4-methyl phenol, 2-benzyl- 4-methyl phenol, 2-benzyl- 6-tert. butyl- 4-methyl phenol, 2-benzyl- 6-tert. butyl-4-ethyl phenol, 2, 4-di-methyl-6-(1-methyl-1-cyclohexyl) phenol, 2, 6-diisopropyl-4-methyl phenol, 2, 4-dimethyl- 6-isopropyl phenol, 2-tert. butyl-4, 6-dimethyl phenol, 2-tert. butyl-4-methyl phenol, 2-(1, 1, 3, 3-tetramethyl butyl)-4-methyl phenol, 2, 4, 6-trimethyl phenol, 2, 6-di-tert. butyl- 4-methyl phenol, 2, 6-di-tert. butyl-4-ethyl phenol, 4-phenyl phenol, 2, 6-diisopropyl phenol, 2, 6-di-tert. butyl-4 (4-tert. butyl-phenyl) phenol, 2, 5-di-tert. butyl-hydroquinone, 2, 5-di-tert. amyl-hydroquinone, a -conidendrine. The polyol is exemplified by sorbitol, mannitol, galactitol, talitol, iditol, allitol, altritol, gulitol, arabitol, ribitol, xylitol, lyxitol, erythritol, threitol, 1, 2, 5, 6-tetrahydrohexane, glycerol, meso-inositol, trimethylolpropane, trimethylundecane.  There may be 0,1-5 parts of the phenolic antioxidant and 0,1-5 parts of the polyol per 100 parts of the cured elastomer; there may be at least 0,25 part of the polyol per part of the phenolic antioxidant.  Fillers such as calcium carbonate, titanium dioxide, clay and barium sulphate may be incorporated in the elastomer.
Patent GB-1089728-A (GB)
Title: Process for the production of a starch for use in electrophoresis
Inventor: SCHULZ PETER
IPC: C08B30/00
Filed: 1966-09-23
Abstract: A starch suitable for use in electrophoresis is made by pre-treating raw starch, or starch paste obtained from a production process, with either a non-reactive organic solvent, demineralized water or an alkali or alkaline-earth-metal salt solution; heating the pre-treated starch to a temperature below 55 DEG  C.; hydrolysing the product with an organic or inorganic acid, e.g. HCl, and/or a salt thereof, e.g. NaCl and KCl, at a temperature between 25-55 DEG  C.; neutralizing, filtering, washing and drying the final product.  The pre-treated starch may, before hydrolysis, be treated with an alkaline solution and/or fat-dissolving agents, and may also be heated to between 25-50 DEG  C. for several hours after this treatment.  Up to 10% by weight of glucose and/or dextrin may be added to the final dried product. The hydrolysis may be conducted at an excess pressure of up to 5 At.
Patent GB-1482626-A (GB)
Title: Spark ignition systems for internal combustion engines
IPC: G06F7/62
Filed: 1973-09-12
Abstract: 1482626 Ignition system LUCAS ELECTRICAL CO Ltd 1 Aug 1974 [12 Sept 1973] 42819/73 Heading F1B Timing of an ignition system for I.C. engines is effected by a memory unit 13 receiving inputs representing engine speed and a further engine operating condition, e.g. inlet manifold depression, and producing an output signal representing the crank-shaft position at which a spark is to be produced, this output signal being compared with a signal representing the crank-shaft position starting from a datum position. As shown, the memory unit 13 receives an inlet manifold depression signal from a vacuum transducer 11 directly or via a digital encoder 12. The engine speed signal is derived from a fixed frequency oscillator 17 connected to the memory unit via a frequency divider 18 and counter 21 by an electronic two-way switch 16 controlled by a transducer 15 to effect such connection while the crank-shaft rotates from the fully retarded position to the datum position, typically 30 degrees before the fully retarded position. At that point the transducer output changes to connect the oscillator 17 to a comparator 14 via a frequency divider 19 and a counter 22. The signal is compared with the memory unit output in comparator 14 and a spark ignition signal produced from the comparator. The counter 21 feeds a signal directly to the comparator at low speeds to provide fully retarded ignition. To improve the accuracy of the crank-shaft position measurement, the divisor of the divider 19 is adjusted by the memory unit 13 to increase the divisor for low engine speeds. Alternatively separate frequencies may be used. Two oscillators may be provided.
Patent GB-1502127-A (GB)
Title: Geometrical transformations in optics
IPC: G02B27/42
Filed: 1975-10-20
Abstract: 1502127 Optical geometric transformations XEROX CORP 20 Oct 1975 [27 Jan 1975] 42985/75 Heading G2J Geometrical image transformations from a first plane to a second plane such as co-ordinate transformations and local translation, inversion, reflection, stretching and rotation (e.g. for field flattening, spatially filtering optical data, coding and decoding optical data or imaging on curved surfaces) are performed by (a) forming an object distribution 30 at the first plane (b) placing a lens 34 between the first and second plane 38 so that it is spaced from each plane by a distance equal to its focal length fL and (c) positioning a transfer member 36, having a predetermined varying phase profile, adjacent the object distribution 30. The varying phase profile corresponds to the desired transformation and a light distribution corresponding to this transformation is formed at the second plane 38. In Fig. 2 the transfer member 36 is a phase filter made up of prisms 42 and lenses 44. Illumination is coherent, from laser source 32. In a modification, Fig. 3, a further phase filter 56 is situated as shown; points of light at filter 56 become the object distribution for lens 58 so that a transform of a transform is produced.
Patent GB-1276345-A (GB)
Title: Process for the polymerisation of olefins
IPC: C08F10/00
Filed: 1969-08-29
Abstract: 1276345 Supported olefin polymerization catalyst FARBWERKE HOECHST AG 29 Aug 1969 [31 Aug 1968] 43204/69 Heading C3P Olefins are polymerized in the presence of a catalyst comprising (A) the product obtained by reacting a halogen-containing tetravalent titanium compound with water in the presence of solid substance, and removing unreacted titanium compound and (B) an organoaluminium compound. In examples, ethylene is homopolymerized or copolymerized with butene in the presence of MgO or Mg(OH) 2 -TiCl 4  or TiCl 2 (O-iso-C 3 H 7 ) 2 -H 2 O and Al(C 2 H 5 ) 3 , Al(i- C 4 H 9 ) 3 , (C 2 H 5 ) 2 AlH, or Al 2 Cl 3 (C 2 H 5 ) 3 .
Patent GB-1022935-A (GB)
Title: Derivatives of dihydro-d-lysergic acid
IPC: C07D457/06
Filed: 1964-10-23
Abstract: The invertion comprises compounds of formula <FORM:1022935/C2/1> wherein R is a hydrogen atom or a methyl group and R1 is a b -(N-carbobenzoxy-L-alanyl)-hydrazide radical, a C5-6 cycloalkyl radical or a C1-6 alkyl group substituted by a halogen atom or a hydroxy, alkoxy, aryl, amino or acylamino group, the aryl radical being the radical of a C1-9 saturated aliphatic carboxylic acid, or an aryloxycarbonyl, benzoyl, nicotinoyl or isonicotinoyl radical, and their preparation by (a) etherification of the free a -hydroxyethylamides with an alcohol R1OH in the presence of an acid at 50 DEG  to 120 DEG  C. and treatment of the salt obtained with a slightly alkaline aqueous solution, (b) 1-methylation of the compounds in which R = H by reaction with a methyl halide in liquid ammonia in the presence of metallic potassium, or (c) catalytic hydrogenation of the corresponding lysergamide derivatives.  The compounds of the invention have hypotensive, vasodilatory and antienteraminic activity and activity on the central nervous system, and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration, such as tablets, powders and pills, or sterilized liquid preparations.
Patent GB-1325319-A (GB)
Title: Semiconductors
IPC: H01L23/31
Filed: 1970-09-10
Abstract: 1325319 Semi-conductor devices WESTING- HOUSE ELECTRIC CORP 10 Sept 1970 [30 Sept 1969] 43365/70 Heading H1K The area of the surface of a semi-conductor body where a PN junction comes to the surface is etched, is cleaned by treatment with a non- aqueous solution of iodine or of iodine and its pentoxide or cleaned by successive treatment with the two solutions, is heated at not greater than 600 C. in hydrogen to remove absorbed iodine (which has formed a monolayer temporary passivation for a period during which electrical tests have been effected); is coated with successive layers of silicon dioxide and silicon nitride; and is overcoated with a layer comprising a solid perfluorohydrocarbon, a solid polyfluorochlorohydrocarbon, an aromatic polyimide, an aromatic copoly(imide-amide), a copoly(benzimidazolylene-imide), or a parlyene resin and which may be filled with one or more of alumina, aluminium nitride, silica, silicon nitride, boron nitride, magnesium oxide, glass fibres, quartz, mica, or powdered PTFE.
Patent GB-1006524-A (GB)
Title: High tensile strength magnesium aluminium silicate glass compositions
Inventor: THOMAS GEORGE LINDSAY
IPC: C03C13/00
Filed: 1963-11-05
Abstract: A glass composition consists essentially, in per cent by weight, of: SiO2, 50.0-64.0; Li2O, 0.1-4.0; Al2O3, 18.0-30.0; MgO, 11.0-23.0; B2O3, 0.0-4.9; Sb2O3, 0.0-1.0; Fe2O3, 0.0-1.0; the ratio of Al2O3 to MgO ranging from 1.0 to 2.2.  Na2O and K2O may be used alone or in combination with Li2O. The composition may be formed into cullet or marbles, which may be remelted at, e.g. 2500 DEG  F. and drawn into fibres of high tensile strength by known method, e.g. through a platinum nozzle.ALSO:Glass filaments spun from a multiple-hole bushing are coated with a resin-compatible finish, then converge to form a roving. The roving is dried at 180 DEG F., it is then twisted to a yarn which is then coated with an epoxy resin, which is then cured at 200 DEG F. The finish comprises gamma-aminopropyltrioxy silane, polyvinyl acetate, polyester plasticizer and solvents therefor, and water, and is applied by running the filaments over a pad impregnated with finish.  The epoxy resin comprises a diglycidal ether of bisphenol A, a diepoxy resin of M.W. 950-1150 and low cross-linkage, and metaphenylene diamine.  The yarn is coated by running through a container of resin at room temperature.
Patent GB-1147169-A (GB)
Title: Oil- and water-repellent compositions
Inventor: CARPENTIER RAYMOND
IPC: D06M15/277
Filed: 1966-09-30
Abstract: 1,147,169. Oil- and water-repellent compositions. U.C.B. (UNION CHIMIQUE-CHEMISCHE BEDRIJVEN) SOC. ANON. 29 Sept., 1967 [30 Sept., 1966], No. 43758/66. Headings C3P and C3R. [Also in Division D1] A composition for rendering porous and non- porous materials oil-repellent and water-repellent comprises by weight, 1-50% of a component (A), 0-99% of a component (B) and 0-99% of a component (C), at least one of components (B) and (C) being present, component (A) being selected from homopolymers of fluorinated, ethylenically-unsaturated mixed esters of the general formula R<SP>1</SP>CO 2 -Y-O 2 CR<SP>11</SP> where R<SP>1</SP> CO 2  is the residue of a perfluoroalkanoic acid, R<SP>11</SP>CO 2  is the residue of a polymerizable alkenoic acid, and Y is a bivalent aliphatic, aromatic or aliphatic-aromatic radical, the carbon chain of which may be interrupted by oxygen atoms, and of copolymers of the said fluorinated, ethylenically-unsaturated mixed esters with one another or with copolymerizable monomers selected from alkyl acrylates, alkyl methacrylates, acrylamide and methacrylamide; component (B) being at least one copolymer of 90-99À5% by weight of alkyl acrylates and/or alkyl methacrylates with 10 to 0À5% by weight of an ethylenically-unsaturated compound which contains a reactive group selected from N-methylol, N-alkoxymethyl, aldehyde and epoxy groups; and component (C) being at least one aminoplast resin selected from the polymeric products obtained by reaction of NH 2  group-containing compounds with aldehydes or with aldehydes and alcohols. Baths for impregnating the materials comprise the compositions in solution in an organic solvent or in an aqueous emulsion or dispersion. In the Examples there are used: as component (A): homopolymers of 2,2-dimethyl-propane-1,3-diol perfluorooctanoate methacrylate, ethylene glycol perfluorooctanoate acrylate, ethylene glycol perfluorooctanoate methacrylate, propylene glycol perfluorooctanoate methacrylate, 2-methyl- 2-propyl-propane-1,3-diol perfluorooctanoate methacrylate, 2,2 - diethyl - propane - 1,3 diol perfluorooctanoate methacrylate, diethylene glycol perfluorooctanoate methacrylate, and pentamethylene glycol perfluorooctanoate methacrylate and a copolymer of 2,2-dimethylpropane- 1,3-diol perfluorooctanoate methacrylate and 2,2-dimethylpropane-1,3-diol perfluorobutyrate methacrylate; as component (B): a copolymer of octyl methacrylate and N-methylolacrylamide, a copolymer of 2-ethyl-hexylacrylate and N-methylolacrylamide, a copolymer of butyl acrylate and N-methylolacrylamide and a copolymer of 2-ethyl-hexylmethacrylate andN-methoxymethylacrylamide ; and a component (C): a methylated melamine formaldehyde resin. Zinc nitrate hexahydrate is also incorporated in the baths as catalyst.
Patent GB-1004266-A (GB)
Title: Improvements in and relating to transistor oscillator circuits
IPC: H03B5/12
Filed: 1961-12-07
Abstract: 1,004,266. Transistor inverter oscillators. WESTERN ELECTRIC CO. Inc. Dec. 7, 1961 [Dec. 9, I960], No. 43806/61. Heading H3T. [Also in Division H2] A transistor oscillator utilizes current and voltage regenerative feed-back. Upon switching on the inverter oscillator shown, current through resistor 116 renders transistor 161 conducting and the resulting regenerative feedback via transformers 403 and 408 maintains it so and ensures 102 is cut off. Initially all the feed-back current flows through the primary winding of transformer 108 since the load on the secondary makes the primary appear to be resistive, but an increasing amount is by-passed through circuit 112, 113 until, after a time dependent upon the time constant of 112, 113, so much is by-passed that the feed-back is insufficient to maintain transistor 161 increasingly conductive. By regenerative action transistor 102 then becomes conductive, 101 is cut off and in this manner the circuit oscillates. Transformer 111 being in series with the load provides current feed-back while resistor 114 or a seriesresonant circuit (Fig. 4, not shown) provides voltage feed-back. The timing circuit 112, 113 could be connected elsewhere in the circuit and could be omitted if a gapped transformer is used. The transistors may alternatively be arranged in common base or common collector configuration or a bridge circuit could be used (Figs. 3, 4 and 5, not shown). In the latter circuit a choke capacitor filter may be connected in the D.C. supply and a rectifier connected across the choke to prevent excessive voltage surges on switching on.
Patent GB-1535643-A (GB)
Title: Determination of the susceptibility of bacteria to antibacterial agents
IPC: C12M1/20
Filed: 1977-10-24
Abstract: 1535643 Antibacterial agent susceptibility test device AYERST McKENNA & HARRISON Ltd 24 Oct 1977 [26 Oct 1976] 44108/77 Heading G1B The susceptibility of bacteria to antibacterial agents is determined by a Kirby-Banes method using in tray 10 having compartments 13 a series of pads 14 of inert material each impregnated with a redox indicator such as resarflurin (7-hydroxy- 3H-phenoxazin-3-one 10-oxide) and with an antibacterial agent, the survival of bacteria in inoculum applied to the pad producing a colour change in the indicator. The pads may be of alpha cellulose paper, cellulose acetate or polyurethane foam.
Patent GB-1389607-A (GB)
Title: Electric lamp assembly
IPC: H04M19/04
Filed: 1972-09-25
Abstract: 1389607 Visible-signalling apparatus PLESSEY CO Ltd 31 May 1973 [25 Sept 1972] 44298/72 Heading G4F [Also in Division H4] In a battery-electric lamp assembly a series circuit comprises a lamp L, an interrupter t 5  and a repeater switch t 2 , and a control circuit comprises a first control terminal T1 connectable to the battery B and a second control terminal T2 connected in a circuit leading to a control input (the base of a transistor t 3 ), of the repeater switch; the repeater switch, which repeats the action of a local switch k 2  when a remote switch is actuated, acts to complete the series circuit. The interruptions are effected by an astable multivibrator one side of which includes a timing capacitor c 2 , transistors t 5 , t 6  and a diode d 4 ; the other side includes a timing capacitor c 5 , a transistor t 8  and a diode d 5 . To ensure multivibrator start-up with t 5  always the first to conduct, a circuit comprises a capacitor c 3 , resistors r 19 , r 20 , a diode d 6  and a transistor t 7 . The invention is applied to a mine lamp; the remote control is via a cable passing only a small current. Resistor r 22  limits the current in the cable to a safe value under fault conditions. The cable may be tapped for connecting several devices. A key k 1  permits a different flashing rate. The device may be operated, with contacts k 1 , k 2  ganged, from a methane detector actuating the remote control switch, the flashing rate being dependent on concentration with the quickest rate corresponding to danger. It can be arranged that continuous earthing of, or continuous contact between, the cable conductors disables the multivibrator by utilizing terminal T3 instead of T2: a transistor t 1 , normally non-conductive, is rendered conductive by the closure of tho remote control switch and consequent charging of capacitor c 1  and remains so until after the lamp L extinguishes on multivibrator changeover. When the remote control switch is opened capacitor c 1  discharges through resistor r 1  and diode d 1 ; when a cable fault occurs earth or negative potential thus appearing at resistor r 4  enables capacitor c 1  to charge and a single flash of the lamp ensues. Contact k 2  may be combined with a lock. Integrated circuit construction may be used and the repeater switch be an electromagnetic relay. Visually indicating incoming telephone calls, Fig. 2.- A is a telephone station connected to an exchange via conductors a, b and the aforementioned device is connected thereto via a circuit 3 in which capacitor c 6  isolates D.C. in the conductors from rectifying network d 7 -d 10  and relay E. A.C. ringing current is rectified and contact E1 closes and lamp L, Fig. 1, flashes according to the manner in which the aforementioned device is set up.
Patent GB-1141668-A (GB)
Title: Method of producing plastics objects having smooth skin portions and foamed interior portions
IPC: A63H9/00
Filed: 1967-09-29
Abstract: 1,141,668. Foam-interior articles. MATTEL Inc. 29 Sept., 1967 [2 May, 1967], No. 44368/67. Heading B5A. Plastics objects, e.g. toy figures, having a smooth skin and foamed interior are produced by partially filling a mould with foamable plastics material, treating e.g. by heating, the material to convert it to a potentially foaming state but maintaining a gaseous pressure in the mould to limit foaming and forming the skin portion in contact with the mould and foaming the interior portion by reducing the pressure in the mould. The gaseous pressure in the mould is obtained by injecting a gas into it or by generating steam pressure, pressure reduction being effected by condensing the steam or by drawing a vacuum. The material may be a vinylplastisol containing a blowing agent. The skin may be formed while rotating the mould about more than one axis. In alternative embodiments, the steps of heating to a potentially foaming condition and of forming the skin portion are reversed. The skin may be formed separately from the interior by using different materials; preferably the inner is a mixture of that used for the skin portion with a blowing agent.
Patent GB-1091406-A (GB)
Title: Improvements in or relating to trays,containers and the like
Inventor: GAUNT THOMAS NORMAN
IPC: B65D81/26
Filed: 1964-10-30
Abstract: 1,091,406. Trays. JOHN WADDINGTON Ltd. Oct. 7, 1965 [Oct. 30, 1964], No. 44474/64. Addition to 1,015,669. Heading B8P. A tray &c. of the kind claimed in the parent Specification has a number of upwardly tapering pointed projections on its base for supporting the contents of the tray spaced from the capillary recesses in the base. Nesting and denesting may be facilitated by forming indentation or projections in the tray. A lid which may also have capillary recesses and projections may be secured by an adhesive to a perimetral flange.