baber/WOPTO huggingface dataset:
Patent GB-1474750-A (GB)
Title: Polymers for photography
IPC: C08F12/00
Filed: 1974-09-26
Abstract: 1474750 Vinylbenzyl ammonium polymers EASTMAN KODAK CO 26 Sept 1974 [26 Sept 1973] 41938/74 Heading C3P [Also in Division G2] Homopolymers containing repeating units of formula where R<SP>1</SP> and R<SP>2</SP> are H or C 1-6  alkyl, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are C 1-20  alkyl and X<SP>(-)</SP> is an anion, the total number of carbon atoms is R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> being sufficient to render the polymer water-insoluble, and copolymers containing at least one-third of such repeating units and repeating units of a hydrophobic comonomer, the total number of carbon atoms in R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> and/or the proportion of hydrophobic comonomer units being sufficient to render the copolymer waterinsoluble, may be prepared by reacting a vinylbenzyl halide polymer or copolymer with a tertiary amine and optionally subjecting to anion exchange with a silver salt, e.g. silver acetate or p-toluenesulphonate. The polymers are useful as dye mordants in photographic systems. The reaction may be effected in an alcohol, and the product may contain vinylbenzyl ether units derived therefrom. Alternatively the polymer may be incompletely quaternized and cross-linked by reacting with a polyamine, e.g. gelatine, butanediamine, imidazole or pyrazine. Examples describe mordants obtained by reacting styrene/vinylbenzyl chloride copolymers with (1, 6 and 11) tri-n-pentylamine, (5) tri-n-butylamine, (7 and 12) tri-nhexylamine, (8) tri-n-heptylamine, (9 and 13) tri-n-octylamine, (10) dimethyldodecylamine, (14) diethyldodecylamine, (15) dimethyltetradecylamine and (19) dimethyloctadecylamine; methyl methacrylate/vinylbenzyl chloride copolymers with (2) tri-n-hexylamine, (3) tri-nbutylamine and (4) triisopentylamine; and polyvinylbenzyl chloride with (21) tri-n-hexylamine.
Patent GB-1396896-A (GB)
Title: Semiconductor devices including field effect and bipolar transistors
IPC: H01L29/73
Filed: 1972-09-11
Abstract: 1396896 Integrated circuit WESTERN ELECTRIC CO Inc 11 Sept 1972 [17 Sept 1971] 42025/72 Heading H1K An integrated circuit Fig. 6 comprises an IGFET the source and drain regions 31, 32 of which are interdigitated so as to provide a serpentine gate region 33, the drain region also constituting the base of a bipolar transistor which has an emitter region 34 disposed on each finger of the drain region. The electrodes consist of interdigitated source and emitter metallizations, a serpentine gate and a strip collector overlying the N+ contact region shown. Typically the N-type substrate is a wafer or epitaxial layer of silicon. The diffused source and drain regions may be 2 Á thick and doped with 5 Î 10<SP>18</SP> atoms/c.c. and the collector contact and emitter regions 1À6 Á thick and doped with 10<SP>20</SP> atoms/c.c. while the channel length may be 25 mils.
Patent GB-850671-A (GB)
Title: Tube couplings
IPC: A47L9/24
Filed: 1958-12-31
Abstract: 850,671. Two-part couplings. LEWYT CORPORATION. Dec. 31, 1958 [Oct. 6, 1958], No. 42210/58. Class 38(1) [Also in Group XXVIII] A vacuum cleaner pipe coupling comprises tubular sections 10, 11 Fig. 3 locked together by a ratchet toothed body 16 fixed to section 10 and a pawl assembly fixed to section 11 which comprises a resilient strip 25, 26 with a pawl 27 and a trip 20, 23 which is moved relative to the resilient strip 25 to flex the same and move the pawl out of engagement with the ratchet teeth. The section 10 is inserted in section 11 and is located by the part 15 engaging in an axial slot 19 in the section 11 so that the pawl 27 on the fixed strip 25 can ride up the face 17 and engage the teeth to retain the tapered sections 13, 14 in engagement. The pawl is released by moving portion 24 to axially slide the strip 20 so as to cause its forward end 23 to bear against the resilient portion 26 to lift the pawl. When thrust is withdrawn from the portion 24 the strip reverts to its original position due to the resilient cam action exerted by the portion 26. An electrical conducting path is made, when the sections are coupled, by a contact portion 34 which rides over the tube end 13 and insulating strip 30 to contact a strip conductor 31. The resilient contact 34 may be integral with the strip 31 or formed separately and held secured by an insulated rivet as shown in Fig. 5.
Patent GB-930524-A (GB)
Title: Optically active homopolymers
IPC: C08F4/00
Filed: 1961-11-27
Abstract: Optically active homopolymers are produced by polymerizing an olefinically unsaturated compound containing no asymmetric carbon atom in the presence of an asymmetric catalyst.  The classes of olefinically unsaturated compounds mentioned are (1) symmetrical unsaturated cyclic compounds capable of polymerizing in the threo-diisotactic form, e.g. cyclopentene, paradioxene and 2,5-dihydrofuran; (2) unsaturated cyclic compounds in which at least one of the substituents of one of the carbon atoms bound with a double bond is different from both the substituents of the other carbon atoms and which can polymerize either in the threodiisotactic form or in the erythro-diisotactic form, e.g. furan, when it polymerizes at 2,3, benzofuran and 1-methoxycyclohexene; and (3) compounds of the general formula CAB = CR-CR1 = CDE in which A, B, D, E, R and R1 represent hydrogen, a halogen, an alkyl, aryl, cycloalkyl, alkoxy, thiol, hydroxy or esterified hydroxy, aldehydic, ketonic, carboxylic, substituted carboxylic such as esters, amides or salts, an amide group which may be substituted, -CN, -CH2-NH2, -CH2OH salified, esterified or not, and A is different from B, which compounds polymerize with 1,4-enchainment, e.g. 1-monosubstituted butadienes, symmetrical 1,4-disubstituted butadienes, 1,4-disubstituted butadienes with different substituents and tri-, tetra- and poly-substituted butadienes.  The following classes of asymmetric catalysts are mentioned, (1) optically active organometallic compounds of metals from Groups I, II or III of the Mendel<\>aeeff Periodic Table in which at least one of the organic radicals is asymmetric, i.e. contains an asymmetric carbon atom, e.g. menthyl lithium, obtained from (-)menthyl chloride; (2) metal alkoxides of optically active alcohols, e.g. tetra-iso-amyl titanate; (3) compounds in which the metal atom is bound to the asymmetric hydrocarbon group by a nitrogen atom, e.g. compounds having the formula MpIMII[N(R1R2)]mXn where R1 and R2 are different asymmetric alkyl, cycloalkyl, aryl or aralkyl groups, MI is an alkali metal, MII is a Group I, II or III metal, X is hydrogen or a halogen, p is a whole number or zero and m+n equals the sum of the valencies of MI and MII; (4) the products obtained by complexing one or more molecules of a compound usually employed as a catalyst for polymerizing the respective monomer, with one or more molecules of an asymmetric complexing agent or with optically active organic compounds containing functional groups which are reactive with respect to the catalytic compound; (5) complexes isolated in the optically active form, e.g. polydentates of chromium, iron and cobalt; (6) hemihedral crystalline forms of metal compounds having asymmetry in the solid state and (6) symmetrical compounds adsorbed on an optically active support. Specifications 903,648 and 907,821 are referred to.
Patent GB-917629-A (GB)
Title: Antifouling paint
Inventor: KAGEYAMA IKUZO
IPC: C09D5/16
Filed: 1961-11-27
Abstract: An antifouling paint comprises a varnish base vehicle and an organo-tin fluoride compound having the general structural formula: <FORM:0917629/III/1> wherein R1, R2 and R3 which may be the sam or different, each represent an alkyl group having from 1 to 6 carbon atoms, an aryl or cycloalkyl group, the groups R1, R2 and R3 being optionally substituted by one or more chlorine or bromine atoms, alkyl groups having from 1 to 3 carbon atoms, aryl or nitro groups. The varnish base vehicle may be oleoresinous varnish, tar varnish, pitch varnish, natural resin varnish, e.g. shellac or rosin, synthetic resin varnish, e.g. vinyl chloride resin, or mixtures or emulsions thereof.  Copper and mercury compounds may also be present. In Example (1) the paint comprises tributyl tin fluoride, Indian red, barium sulphate and an oleoresinous varnish consisting of ester gum, tung oil, xylol and mineral spirit, and in Example (2) the paint comprises trimethyl tin fluoride, titanium dioxide and a vinylchloride resin varnish prepared from vinylchloride-vinylacetate copolymer, rosin, tricresyl phosphate, methyl isobutyl ketone and xylol.ALSO:An antifouling paint comprises a varnish base vehicle and an organo-tin fluoride compound having the general structural formula <FORM:0917629/IV(a)/1> wherein R1, R2 and R3 which may be the sam or different, each represent an alkyl group having from 1 to 6 carbon atoms, an aryl or cycloalkyl group, the groups R1, R2 and R3 being optionally substituted by one or more chlorine or bromine atoms, alkyl groups having from 1 to 3 carbon atoms, aryl or nitro groups. The varnish base vehicle may be oleoresinous varnish, tar varnish, pitch varnish, natural resin varnish, e.g. shellac or rosin, synthetic resin varnish, e.g. vinyl chloride resin, or mixtures or emulsions thereof.  Copper and mercury compounds may also be present. In Example (2) the paint comprises trimethyl tin fluoride, titanium dioxide and a vinylchloride resin varnish prepared from vinylchloride-vinylacetate copolymer, rosin, tricresyl phosphate, methyl isobutyl ketone and xylol.ALSO:Organotin fluoride compounds having the general structural formula:  <FORM:0917629/IV (b)/1> wherein R1, R2, and R3, which may be the same or different, each represent an alkyi group having from 1 to 6 carbon atoms, an aryl or cycloalkyl group, the groups R1, R2 and R3 being optionally substituted by one or more chlorine or bromine atoms, alkyl groups having from 1 to 3 carbon atoms, or aryl or nitro groups, are used in antifouling paints.  Compounds specified are triethyltin fluoride, tripropyltin fluoride, tributyltin fluoride, triphenyltin fluoride and tricyclohexyltinfluoride.  Tributyltin fluoride may be prepared by agitating tributyltin chloride with an aqueous potassium fluoride solution or by agitating tributyltin oxide with an aqueous hydrogen fluoride solution.
Patent GB-1527683-A (GB)
Title: Associative memory
IPC: G06F7/505
Filed: 1976-10-13
Abstract: 1527683 Associative memory G V VITALIEV A D GVINEPADZE R V SMIRNOV and G D SOFIISKY 13 Oct 1976 42508/76 Heading G4A An associative memory designed to perform search and logical operations comprises an input register 1 formed of flip-flops 2 connected via coincidence circuits 7 to an interrogation register 4 formed of flip-flops 5 the outputs of which are passed via OR gates 15 to interrogation decoders 14 which supply addresses to a data storage unit 29. The coincidence circuits 7 are controlled by the outputs of an operation decoder 25 to pass their inputs from input register 1 in direct or inverted form. The OR gates 15 are controlled by inputs from a mask register 20 formed by flip-flops 21 connected in ring shift registers 22.  Words in one memory module in storage unit 29 may be transferred to another memory module in direct or inverted form by storing 110 in the mask register 20 and 0's or 1's in input register 1 respectively. Arithmetic operations may be carried out using an operand in input register 1 and an operand stored in storage unit 29 by supplying appropriate words to the mask register 20 during respective clock times and supplying appropriate control signals from operation decoder 25. The storage unit 29 may include ring shift registers (54, Fig. 4, not shown) for shifting the outputs of the interrogation decoders 14 and each connected to the outputs of a respective interrogation decoder 14 and a control output of the input register 1 and supplying signals to a respective row of memory modules. In an alternative embodiment pairs of adjacent memory modules in storage unit 29 are interconnected via modulo-2 adders (40, Fig. 3, not shown) controlled by operation decoder 25.
Patent GB-892724-A (GB)
Title: A method and a device for continuously mixing a substance consisting of one or more components
IPC: B29C48/67
Filed: 1959-12-15
Abstract: 892,724. Mixing appliances. ALGEMENE KUNSTZIJDE UNIE N. V. Dec. 15, 1959 [Dec. 16, 1958], No. 42639/59. Class 86. In an apparatus for continuously mixing and homogenizing substances of which one is a highly viscous liquid, a polymer melt and an aqueous pigment suspension are metered by pumps 8, 9 respectively and pass by a conduit 4 into a mixing chamber 1 having a rotating mixing member 2. The mixing member has sections 14 which make close contact with the wall of the mixing chamber and are axially grooved, alternating with plain cylindrical sections 13 not in contact with the chamber walls. The mixing member also has a seal 12 formed as a screw thread of opposite hand to the direction of rotation. The mixed substances are discharged through the outlet 10. According to the invention the dimensions and angular velocity of the mixing member and the rate at which the substances are pumped through the mixer are chosen so that the volume of the grooves in a grooved section is at least 3À5 times, and the volume of the clearance round a cylindrical section is at least 15 times, the volume of material passing through the apparatus per revolution of the mixing member.
Patent GB-1149189-A (GB)
Title: Dynamoelectric machines and their manufacture
IPC: H02K15/16
Filed: 1966-09-23
Abstract: 1,149,189. Assembling dynamo-electric machines. SIEMENS - SCHUCKERTWERKE A.G. 23 Sept., 1966 [25 Sept., 1965], No. 42699/66. Heading B3A. [Also in Division H2] A method of assembling a dynamo-electric machine comprises locating a rotor 2 in a stator 3, arranging stirrup members 6 so that opposite end portions thereof extend adjacent to the external surfaces of two bearings 5 on the rotor shaft 1 and an intermediate portion thereof extends adjacent an external surface of the stator 3, securing the intermediate portion to the stator and applying clamping rings 8 to the end portions to secure the bearings. When the bearings 5 are located on the shaft 1, a solid or liquid film, preferably a lubricant, of a thickness equal to the required bearing clearance is used. The film is not able to leave the gap owing to the use of high-velocity forming methods which may be magnetic, electrohydraulic or explosive. Ball, sleeve, or flatended spherical bearings may be used and the sleeve bearings may be of sintered metal. The rotor is centred relative to the stator by means of needle air-gap gauges, which comprise probes inserted between the rotor and stator. The stirrups, of which there may be two or more, are of sheet metal or plastics and may be both plastically and elastically deformed during forming.
Patent GB-1439765-A (GB)
Title: Coating process
IPC: C09D7/00
Filed: 1972-09-15
Abstract: 1439765 Coating composition IMPERIAL CHEMICAL INDUSTRIES Ltd 14 Sept 1973 [15 Sept 1972] 42882/72 Headings C3B C3P and C3R An aqueous composition suitable for use in coating by electrodeposition, comprises a pigmentary metal chromite, especially copper chromite optionally in conjunction with another copper compound. The copper chromite may be a combination product of Cr 2 O 3  and one or more moles of CuO. Chromites of Fe, Mn, Co Ni or alkaline earth metals may also be used. Fe 2 O 3  and or carbon black may additionally be present. The chromite may have a particle size of <1 Á and the total pigment volume concentration may be 1-20%. The composition may comprise as film former, an epoxy resin ester, a maleinized polybutadiene or an acidic addition polymer neutralized with a water soluble amine or inorganic base. Water dispersible aminoplasts or phenoplasts may additionally be present.
Patent GB-1086817-A (GB)
Title: Wheelhead swivel-motor drive for grinding machine
IPC: B24B27/00
Filed: 1965-10-12
Abstract: 1,086,817. Grinding. A. A. JONES & SHIPMAN Ltd., and J. HOULDSWORTH. Sept. 21, 1966 [Oct. 12, 1965], No. 43148/65. Heading B3D. A grinding machine comprises a wheelhead 19 which has two grinding wheels 16, 17 mounted at opposite ends of a common spindle 15 and is turnable about a vertical axis to bring one or other of the grinding wheels into an operative position and a horizontal axis for machining at an adjustable angle, the spindle being driven by an electric motor 26 which is supported on the wheelhead with its axis parallel to that of the spindle and is movable relative to the spindle into two alternative positions in which it extends respectively adjacent to one end or the other of the wheel spindle. The spindle is mounted within bearings 18 in the wheelhead which is formed with a spigot 20 engaging bearing surfaces 20a in a support bracket 21, a worm-and-wheel arrangement 34, 35 being provided to effect adjustment of the wheelhead in the bracket, the adjustment being about a horizontal axis. The bracket is supported on the machine for adjustment about a vertical axis. A plate 23 is supported for rotation on bearings 24 on the spigot and a spring-loaded plunger 25 is engageable with one or other of a pair of notches 22a, 22b to locate the plate in positions 180 degrees from each other. The plate carries the motor 26 which is connected by a belt drive 30 to the spindle 15, the belt being removed during adjustment of the motor between its positions shown solid and dotted in which it is adjacent one or other of the grinding wheels, which wheel is then inoperative and the other operative wheel is not obstructed by the motor. The machine may be used for grinding, milling and like rotary cutters and other tools. A known machine is described having a spindle which has a pulley adjacent one of the grinding wheels and connected by a belt to a pulley on the shaft of a motor mounted in fixed position relative to the spindle on a wheelhead.
Patent GB-930369-A (GB)
Title: Improvements in or relating to pump mechanisms
IPC: F04B49/00
Filed: 1959-12-21
Abstract: 930,369. Swash plate pumps. G. A. BLACK. March 21, 1961 [Dec. 21, 1959], No. 43375/59. Class 102(1). In a pump mechanism comprising at least two pump units 1, 1<SP>1</SP> having a common delivery, a controlling mechanism 6 is provided for varying the settings of the pumps so that their delivery volumes may be added or subtracted to give an infinitely variable delivery between zero and the maximum of the combined units. Motors 2, 2<SP>1</SP> drive swash plates of the pumps, the drive shafts of which are interconnected by gearing 7, 7<SP>1</SP>, oppositely rotating shafting and the differential gear mechanism 6. Movement of a lever 8 causes relative rotation in opposite directions of the swash plates thus altering the phase displacement of the pumps. The inclination of the swash plates is fixed relative to the drive shafts.
Patent GB-1361073-A (GB)
Title: Triggering apparatus for a flash lamp
IPC: H05B41/32
Filed: 1971-09-17
Abstract: 1361073 Supply circuits for flash lamps XEROX CORP 17 Sept 1971 [22 Sept 1970] 43469/71 Heading H2H [Also in Divisions H1 and F4] A flash-lamp apparatus comprises a conductive member 35 having at least one groove 37 thereon, at least one flash tube the envelope 10 of which is in contact with the groove, means for coupling a voltage insufficient to cause breakdown across the electrodes 12, 13 of the tube, and means for applying a triggering voltage to the conductive member 35. When a plurality of flash tubes is provided, any tube which it is desired should ignite has a gating signal applied to an SCR 39 in its discharge circuit. The tube may be filled with any one or mixtures of xenon, krypton and argon or, a mixture of iodine with xenon and krypton. Member 35 additionally serves as a cooling arrangement.
Patent GB-893539-A (GB)
Title: Swinging support system with reinforced concrete columns for cultivating hops
IPC: A01G17/04
Filed: 1960-12-20
Abstract: 893,539. Supports for growing hops. PASZTOR, M. Dec. 20, 1960, No. 43789/60. Class 6(2). A support system for growing hops comprises a network of wires 1, 1a freely supported at their crossing points on the tops of reinforced concrete columns 3 in such a manner as to be capable of gliding over the latter and over each other, the hop plants creeping on wires suspended from this network. Further, the concrete columns are supported on the ground in such a manner that they may swing away from the vertical position on being subjected, for example, to heavy wind pressure. The columns, which are preferably provided with metal caps 4, comprise means such as a rod 7 to prevent the wires 1, 1a falling away from the top surfaces thereof. The ends of the wires are connected by means of stretcher wires 5 to anchoring plates 6 in the ground, and the network may be reinforced in the regions of the crossing points by additional wires 9.
Patent GB-1039279-A (GB)
Title: Improvements in spectacle frames
IPC: G02C5/22
Filed: 1964-10-27
Abstract: 1,039,279. Spectacle frames. Y. P. ADAMS. July 9, 1965 [Oct. 27, 1964], No. 43851/64. Heading G2J . The hinge joints 14 on a spectacle frame are surrounded by a toroidal rubber or like resilient ring 21.
Patent GB-1330881-A (GB)
Title: Brazing furnace and process for aluminium radiator cores
IPC: B23K1/008
Filed: 1970-04-14
Abstract: 1330881 Brazing SOC ANON DES USINES CHAUSSON 14 Sept 1970 [22 Sept 1969] 43880/70 Heading B3R A method of brazing aluminium radiator cores comprises passing the assembled cores complete with flux coating and brazing alloy through a furnace in which contiguous streams of hot gas at various controlled speeds and temperatures are directed across the furnace, the front face of the radiator being disposed at right angles to the flow of gas. The furnace 1 comprises an inner enclosure 3 having walls 4, e.g. of ceramic or stainless metal with holes 4a for admitting the hot air streams, fans 10 and electric or other heating means being mounted in duct portions 9, 9a of the furnace outside the enclosure 3. A plurality of jigs 12, each adapted to hold a radiator core for brazing, run through the furnace, e.g. on a conveyer rail 6 disposed in an insulated duct 5 on top of the enclosure 3. The furnace comprises at least a preheating, a brazing and a cooling area in which the temperatures and speeds of the hot gas streams are suitably controlled. Where flux coating is effected by dipping the cores in a bath, the initial area of the furnace may comprise a drying section; alternatively, spray-fluxing may be carried out in the first area of the furnace. Chambers 11, 11a at the inlet and outlet of the furnace each provide an opening substantially filled by the jig and radiator core units passing therethrough so that air losses are minimized. Each jig, Fig. 3, comprises a frame structure 17, 18, 19 and includes top and bottom core supporting plates 30, 21 which are provided with projecting pins 22 or other members (Figs. 7-10, not shown) adapted to make point contact with the core parts. The upper plate 30 may clamp the radiator core under its own weight or additionally be pressed against the core by means of springs 31. In order to prevent the projecting elements (22) adhering to the radiators they may be formed of or tipped with some refractory non-metallic material, e.g. ceramic or steatite. Reference is made to the use of aluminium-silicon brazing alloys having 7À5% and 12% silicon contents respectively.
Patent GB-1218547-A (GB)
Title: New dyestuffs
Inventor: BOOTH GERALD
IPC: D06P1/00
Filed: 1967-09-27
Abstract: 1,218,547. Polymerization of dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 April, 1968 [19 April, 1967; 27 Sept., 1967], Nos. 18006/67 and 43932/67. Heading C3P. [Also in Divisions C2, C4 and D1] In Examples 10-13 and 111 azo dyes which contain pentadienoylamino-groups are homo- or co-polymerized to form coloured polymers. Polymerization is effected by heating in diethyleneglycol-dimethyl ether optionally in presence of α-α<SP>1</SP>-azobisisobutyronitrile, or in methyl methacrylate containing α-α<SP>1</SP>-azobisisobutyronitrile or in aqueous dioxan under nitrogen in presence of ammonium persulphate and sodium metabisulphite. The homopolymers may be incorporated in polyethylene.