baber/WOPTO huggingface dataset:
Patent GB-1353917-A (GB)
Title: Method and apparatus for forming crystalline bodies of a semicon ductor material
IPC: C30B15/02
Filed: 1971-08-26
Abstract: 1353917 Group III-Group V compounds RCA CORPORATION 26 Aug 1971 [4 Dec 1970] 40048/71 Heading C1A [Also in Division B1] A crystalline body of a Group III-V semiconductor compound wherein the Group III element is selected from Al, Ga, In or mixtures thereof, and the Group V element is selected from P, As, Sb or mixtures thereof is prepared by melting a charge comprising the Group III element in elemental or combined form and passing vapours of the Group V element into the molten charge at a point below the surface of the charge so as to react with the available Group III element and form the desired III-V compound and then crystallizing the melt. The melt may be crystallized by gradient freezing, by the Bridgman technique or by crystal pulling in which portions of the reacted melt are slowly crystallized to form a monocrystalline or polycrystalline body. The flow of Group V element vapour into the non-solid portion of the crystallizing melt may be continued during the crystallization. The crystallization may be commenced using a seed crystal on which the material from the melt is epitaxially deposited. The charge used to form the melt may in fact comprise some already formed III-V compound, whereby the desired product is crystallized from a melt comprising a saturated solution of the Group V element in the III-V compound. The monocrystalline or polycrystalline nature of the product varies according to the growth rate used. A suitable apparatus is shown in Fig. 3, where a container 86 under a suitable pressure of inert gas, holds a crucible 90 on a movable rotatable support 88, a susceptor 94, a R.F. heating coil 92 and a heat shield 96. The container 86 also holds a crucible and lid 98, 100, which crucible is raised and lowered by wire 102, and which has a tube 104 passing through its base into crucible 90. The tube 104 may also carry a sealing disc 114 positioned below the liquid sealing material 112 used during the process. In the process the charge 108 comprising Group III element is heated until molten, and then by means of heater 106 the Group V material 110 in crucible 98 is raised to vaporizing temperature and passes down tube 104 which has been immersed in the molten charge 108 so that its tip is adjacent the bottom of the crucible. When the reaction is complete, as is evident from the bubbles of Group V material emerging from the melt, either the tube 104 is raised whilst heater 92 is arranged to impress a suitable crystallizing gradient on the crucible, or the crucible is lowered and crystallization is initiated and continued by the crucible leaving the heating coil. In a further embodiment (not shown) a crystal may be pulled by suitable means from the melt.
Patent GB-868801-A (GB)
Title: Polyester molding compositions comprising dextran or derivative
Inventor: WENZELBERGER ELWOOD P
IPC: C08L67/06
Filed: 1957-12-27
Abstract: A moulding composition comprises (1) 1-80% by eight of particulate dextran or benzyl dextran as a filler and (2) a blend of (a) a polyhydric alcohol-polycarboxylic acid polyester containing ethylenic unsaturation or the (b) 5-50% by weight of the blend of a polymerizable olefinically unsaturated monomeric compound compatible with the polyester.  Compounds specified are (1) dextran which may be prepared from succose by biosynthesis with Leuconostoc mesenteroides, L. dextraricum, Streptobacterium dextraricum, or Betabacterium variforme, or by partial hydrolysis of high molecular weight dextrans; the dextrans in general are of M.W. 5,000-150 X 106; benzyl dextran may be prepared from dextran with benzyl chloride.  The polyester (2) (a) may be derived from maleic, fumaric, itaconic, citraconic, mesaconic, or citric acids, COOH,(CH2)0-8,COOH, any benzene, naphthalene or cyclohexane dicarboxylic acid, or diglycollic, dilactic, or resorcinol diacetic acid; and from glycerol, pentacrythritol, OH,(CH2)2-10,OH, propylene or butylene glycols, OH,(CH2,CH2,O)2-,H9, dipropylene glycol monoformin, monoacetin, monomethylin, monoethylin, OH,(CnHn),OH where n is 4-10, or an ether of 1 or 2 mols of allyl or methallyl alcohol with 1 mol of glycerol, pentaglycerol, pentaerythritol, butane tetrol-1, 2, 3, 4, butane triol-1, 2, 3, or a mono C1-4 alkyl ether of pentaerythritol or of butane tetrol-1, 2, 3, 4.  Inhibitors which are specified are hydroquinone, pyrogallol, tannic acid, aniline and phenylene diamine.  The comonomer (2) (b) may be vinyl acetate; diallyl oxalate, diglycollate or phthalate; triallyl citrate; carbonyl-, maleyl-, fumaryl-, succinyl- or phthalylbis-(allyl lactate); fumaryl- or carbonyl-bis-(allyl glycollate); carbonyl bis- (allyl salicylate); tetra-(allyl glycolate) silicate or tetra-(allyl lactate) silicate; styrene; methyl acrylate or methylmethacrylate; 2-vinyl pyridine, and 2, 5 substituted pyridines, one substituent being vinyl, the other methyl or ethyl.  Polymerization catalysts specified are benzoyl-, succinyl-, acetyl-, toluyl-, p-brombenzoyl-, anisoyl-, chlor-acetyl- or furoyl-peroxides; peracetic or perbenzoic acids; and di-isopropylene or di-isobutylene ozenides.  Other optional additives specified are tricresyl phosphate and zinc stearate.  The composition may be milled into sheets and granulated.
Patent GB-943396-A (GB)
Title: Production of mouldings from crystalline polystyrene
Inventor: WIRTH HEINRICH
IPC: B29B13/00
Filed: 1962-10-24
Abstract: 943,396. Moulding polystyrene. BADISCHE ANILIN- & SODA-FABRIK A.G. Oct. 24, 1962 [Nov. 2, 1961], No. 40214/62. Heading B5A. Polystyrene mouldings are made by sintering finely divided isotactic polystyrene at temperatures between 100 ‹ and 220 ‹ C. and at pressures between 100 and 1000 kg./sq. cm. The mouldings may then be annealed at temperatures between 140‹ and 220‹ C. Examples giving particular values of temperature, pressure &c. are described.
Patent GB-1453666-A (GB)
Title: Ticket cartridge and stacker therefor radionuclide-labelled phosphonic acids for the treatment of
IPC: G06K13/14
Filed: 1974-09-17
Abstract: 1453666 Sheet separating and ordering apparatus: containers INTERNATIONAL BUSINESS MACHINES CORP 17 Sept 1974 [7 Nov 1973] 40347/74 Headings B8R and B8P A cartridge comprises a slot 426 in the bottom thereof (Fig. 8 view is inverted) into which sheets (e.g. tickets) may be fed when the cartridge is in a stacker station, and a further slot 428 in the front wall 408 thereof through which sheets may be fed from the cartridge when the latter is in a hopper station. A spring urged block 406 maintains a stack in contact with lips 422, 424 at the bottom of the cartridge. Sheets may be manually inserted by bending them so that they spring past these lips, Fig. 9 (not shown). The stacker station, Fig. 10, comprises nip rollers 172 and 174 for forwarding a sheet into the cartridge and a stacker roller 176 to complete the stacking. The roller 176 is mounted on a swing arm for movement into engagement with the stack when required. The table 354 upon which the cartridge rests in the stacker station comprises a raised portion (354a, Fig. 12, not shown) which passes between lips 422 and 424 and supports the stack. The stacker station includes a switch which is actuated upon placement of an empty cartridge on table 354 to energise the mechanism for feeding sheets into the cartridge which switch is de-activated when the cartridge is full. The hopper station, Fig. 14 includes a throat knife 298 which enters the bottom of the cartridge and co-operates with a roller 300 to define an exit slot, and a friction feed roller 136 mounted on a swing arm for movement to and from the stack. Nip rollers 124 and 126 forward the separated sheet.
Patent GB-1439378-A (GB)
IPC: C07F9/11
Filed: 1973-08-29
Abstract: Esters of phosphorus, of the formula <IMAGE> where R<1>, R<2> and R<3> have the meaning given in Patent Claim 1, can be prepared in improved yields by reacting a salt of an acid of the general formula <IMAGE> with an appropriate dialkyl sulphate (III) or by reacting the methyl ester of an acid of the formula II with a tertiary amine or its hydrohalide, leaving the quaternary ammonium salt of the acid according to formula II formed in the reaction mixture and reacting it there with a dialkyl sulphate in which, however, the alkyl group does not represent the methyl group. A process which is also convenient for preparing the compounds of the formula I consists in reacting the methyl ester of an acid of the formula II with a thiocyanate of an alkali metal or alkaline earth metal, leaving the alkali metal or alkaline earth metal salt of the acid according to formula II formed in the reaction mixture and then reacting it with a compound III. The process is particularly utilisable for the preparation of variously substituted vinyl esters of phosphorus acids having improved biocide properties, in particular insecticide, acaricide and/or anthelmintic properties.
Patent GB-1374906-A (GB)
Title: Bar feeding apparatus for machine tools particularly automatic lathes
IPC: B23B13/12
Filed: 1972-09-01
Abstract: 1374906 Bar-stock feeding INDEX-WERKE KG HAHN & TESSKY 1 Sept 1972 [3 Sept 1971] 40715/72 Heading B3B A bar feed apparatus, e.g. for an automatic lathe, comprises a cylindrical jacket carrier 42 which is indexable about its longitudinal axis and in which a plurality of guide sleeves 52 are rigidly mounted to define a central free connecting space, the axes of the guide sleeves lying in a common circle concentric with the axis of the carrier 42 and each guide sleeve having a longitudinal slot to receive a projecting extension 60 of a bar slide 56, the said extension 60 projecting into the said central space to co-operate with a driver 72 of a transporter the apparatus being characterized in that the driver 72 which may be attached to a chain or cable 68 which passes along the central space, is brought to a starting position before the carrier 42 is indexed, can be engaged by the extension 60 of the respective bar slide 56 projecting out of the particular guide sleeve 52 which is aligned with a work spindle 12 of the lathe, and in that a drive means is provided to index the carrier 42, e.g. under the programme control of the lathe. The guide sleeves 52 may be of the same size or of different size to hold different size bars. The bar slides 52 may include a gripper to retract an unfinished bar, or a separate fluid pressure operated return device 26 may be provided on the lathe. The carrier 42 is indexed by a pressure fluid device 82 which drives a rack and ratchet device (Fig. 4, not shown).
Patent GB-1213168-A (GB)
Title: Vibration-responsive detector device for alarm systems
Inventor: EYRE PETER JOHN
IPC: G08B13/04
Filed: 1967-09-07
Abstract: 1,213,168. Burglar alarms. P. J. EYRE. 9 Sept., 1968 [7 Sept., 1967], No. 40859/67. Headings G4F and G4N. A burglar alarm comprises a vibration sensitive switch, having a spring-loaded locking mechanism. In Fig. 2 forked leaf 7 and leaf 8 are held in their respective positions by spring 9 such that contacts 10 and 11 are made. Vibrations (e.g. from the breaking of a window) cause 7 to vibrate and in moving upwards to lock open contacts 10, 11 by means of spring 9, and helped by permanent magnet 17. Bolt 16, inserted in sensitivity determining weight 10, indicates by its prominence which of several such switches installed at doors, windows &c. operated the common alarm.
Patent GB-887653-A (GB)
Title: Superconductive circuit
IPC: H03K3/38
Filed: 1958-12-18
Abstract: 887,653. Super-conductor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 18, 1958 [Dec. 23, 1957], No. 40891/58. Class 37. [Also in Group XXXIX] The control winding of a cryotron forms part of a super-conductor loop circuit. The loops are used in bi-stable circuit arrangements (see Group XXXIX) Niobium and lead control conductors may be used respectively with tantalum and tin gate conductors. In a loop 30, the control winding C3b of cryotron G3 is connected in series with the gate conductor of cryotron G5 and with a superconductor segment 34 of " soft " material which is driven resistive by a magnetic field of low intensity. A drive line 36 includes a segment 38 adjacent the segment 34. A winding C3a carries a biasing current insufficient to drive G3 resistive. A drive pulse in line 36 induces a current il in one direction round the loop until the current drives segment 34 resistive and links magnetic flux with the loop. The pulse decays slowly until 34 again becomes superconducting, the linked flux is trapped and, when the pulse ends a persistent current i2 remains in the opposite direction. The magnitude and direction of the bias current in C3a is such that the bias and the persistent current i2 together drive the cryotron G3 resistive. The current il is opposed to the bias and has no effect. If cryotron G5 is driven resistive by control winding C5, the persistent current is dissipated and G3 conducts again. Specifications 666,883, 861,280, 862,178 and 887,652 are referred to.
Patent GB-889726-A (GB)
Title: Guanidine derivatives
Inventor: MCKAY ARTHUR FERGUSON
IPC: C07D213/40
Filed: 1959-12-03
Abstract: The invention comprises trisubstituted guanidines of general formula <FORM:0889726/IV (b)/1> wherein R11 is one of a group consisting of straight chain alkyl group having from 1 to 12 carbon atoms, 2 - hydroxy - ethyl, 2 - dimethylaminoethyl, 2 - phenylethyl, 2 - pyridylmethyl, 3 - pyridylmethyl, a -naphthylmethyl, allyl, benzyl, 3, 4 - dichlorobenzyl, 4 - isopropylbenzyl, 2,4,5 - trimethylbenzyl, when R and R1 are 3,4-dichlorobenzyl; n-butyl when R and R1 are 3,4-dimethylbenzyl; 4-methylbenzyl, 3,4-dimethylbenzyl, b -(3, 4-dichlorophenyl)-ethyl when R and R1 are the same as R11; benzyl, 3-nitrobenzyl when R is 3,4-dichlorobenzyl and R1 is benzyl; and a -naphthylmethyl when R is 3,4-dichlorobenzyl and R1 is a -naphthylmethyl; also their salts, and a process of manufacture thereof, by reacting the corresponding N,N1-disubstituted thiourea with an S-alkylating reagent and reacting the product with a primary amine R1NtH2.  The Provisional Specification refers to compounds wherein R and R1 are benzyl groups at least one of which is substituted with at least one halogen, hydroxy, nitro, alkyl, alkoxy, cyano or carboxy radical, and R11 is benzyl or benzyl substituted by at least one halogen, hydroxy, nitro, alkyl, alkoxy, cyano or carboxy radical, or a straight or branched alkyl group of 1-16 carbon atoms, or a said alkyl group containing 1 or more hydroxy, cyano or carboxy substituent groups.  Specification 285,932 is referred to.ALSO:Bacteriostatic compositions comprise tri-substituted guanidines of general formula <FORM:0889726/VI/1> wherein R11 is one of a group consisting of straight chain alkyl group having from 1 to 12 carbon atoms, 2-hydroxyethyl, 2-dimethyl-aminoethyl, 2 - phenylethyl, 2 - pyridylmethyl, 3 - pyridylmethyl, a  - naphthylmethyl, ally, benzyl, 3,4 - dichlorobenzyl, 4 - isopropylbenzyl, 2,4,5 - trimethylbenzyl when R and R1 are 3,4 - dichlorobenzyl; n - butyl when R and R1 are 3,4-dimethylbenzyl; 4-methylbenzyl, 3,4 - dimethylbenzyl, b  - (3,4 - dichlorophenyl)-ethyl when R and R1 are the same as R11; benzyl, 3-nitrobenzyl when R is 3,4-dichlorobenzyl and R1 is benzyl; and a -naphthylmethyl when R is 3,4-dichlorobenzyl and R1 is a -naphthylmethyl or their salts, in conjunction with a carrier and optionally other active constituents, e.g. in the form of tablets or ointments for internal or external use respectively. Specified salts are hydrochlorides and hydriodides. Specification 285,932 is referred to.
Patent GB-1197283-A (GB)
Title: Improvements in or relating to Soldering Irons
Inventor: CHUCHLA JERZY KAZIMIERZ
IPC: B23K3/02
Filed: 1966-12-08
Abstract: 1,197,283. Soldering irons. ELECTRICAL REMOTE CONTROL CO. Ltd. 13 June, 1967 [8 Dec., 1966], No. 41435/67. Divided out of 1,197,282. Heading H5H. [Also in Division B3] The kit 3 of a soldering iron is loosely retained on a longitudinally split rolled stainless steel stem 1 at normal temperatures to permit removal, but on rise in temperature the stem opens outwardly, widening the split 2, so that the bit is tightly secured.
Patent GB-1525427-A (GB)
Title: White sidewall tyre
IPC: B29D30/72
Filed: 1976-10-07
Abstract: 1525427 Moulding tyres GOODYEAR TIRE & RUBBER CO 7 Oct 1976 [20 Oct 1975] 41697/76 Heading B5A A tyre 10 with a white strip 25 between circumferential ribs 14, 16 is moulded after applying an uncured white strip circumferentially about the unshaped uncured sidewall of an uncured tyre; the strip and sidewall are shaped in a mould to the form shown in Fig. 4 in which margins 52, 54 of the strip partially cover the ribs. After curing and tyre removal from the mould the tops of the ribs with the margins are removed.
Patent GB-1148352-A (GB)
Title: Improvements in or relating to processes for providing electrical components with connecting leads
IPC: H01L23/495
Filed: 1967-09-13
Abstract: 1,148,352. Semi-conductor devices; capacitors. SIEMENS A.G. 13 Sept., 1967 [14 Sept., 1966], No. 41756/67. Headings H1K and H1M. Each of a plurality of electrical components 8-particularly semi-conductor components, though capacitors and resistors are also mentioned-is sandwiched between a portion 6 of a suitably cut-out metal sheet and a second portion 8 which is bent over from an initial position shown in section A of Fig. 1 to a final position shown in section B of Fig. 1. The components are thus held on the sheet and may be transported on it through processing stages, such as etching. Ultimately the sheet, which may be solder-coated for the purpose, is bonded to the components by soldering; alternatively, a thermo-compression bonding technique may be employed. Then each device is individually encapsulated by a moulding process and finally the portions of the sheet to which the components have been bonded are cut from the sheet and serve as the component terminals. For components required to have more than two terminals, such as the transistor depicted in Fig. 3 (not shown), the pattern of cut-outs in the original sheet is appropriately modified.
Patent GB-1401473-A (GB)
Title: Construction of stabilised platform
IPC: A61G3/00
Filed: 1972-09-08
Abstract: 1401473 Fluid-pressure servomotor systems; automatic control of movement INSTITUTE FOR INDUSTRIAL RESEARCH & STANDARDS and J M M STIRLING 8 Sept 1972 [13 Sept 1971] 41874/72 Headings G3N and G3P [Also in Division B7]  A platform 1, Figs. 1 and 2, is mounted in an ambulance to tilt about an axis 2 in response to lateral forces during cornering and to be raised and lowered in response to motion of the floor 4. Tilting is controlled by a sensor 6, such as a pendulum, connected to an actuator 3 through a control 5 while an inertial transducer 8 on the vehicle floor and a transducer 9 to determine the mean height of the platform 1 control an actuator 7. A pendulum is rigidly connected to the platform to control movement about a horizontal axis at right angles to the axis 2. Fig. 3 shows an actuator 12 controlled by a valve 28 responsive to signal pressure at a port 15, the movement of the actuator being fed back to the valve through a cam 27, lever 25 and spring 24. Height control may be effected by a bellows 1, Fig. 7, having electromagnetically controlled inlet and outlet valves 41, 43 connected through a control circuit 49 and a comparator 47 to an electrical height control 48, a pressure transducer 50, and a height transducer 45 with a delay 46. Fig. 8 shows the table 62 pivotally connected at 63, 65 to a frame 66 mounted on roller 68 and bars 69 for vertical movement by a piston-rod 74 through a cable 76.
Patent GB-944292-A (GB)
Title: Preparation of titanium dioxide pigments
Inventor: EVANS ARTHUR WALLACE
IPC: C09C1/36
Filed: 1959-12-09
Abstract: After subjecting a calcined titanium dioxide pigment to a wet treatment, a non-ionic surfactant, e.g. 0.1-0.4%, is added to the pigment before drying.  The calcined pigment is obtained by the sulphate process or by the vapour phase oxidation or hydrolysis of a titanium tetrahalide. The wet treatment comprises wetting the pigment with a liquid, e.g. water, to form a dispersion, slurry or paste. The surfactant may be a water-soluble condensation product of ethylene oxide with an alkylated phenol or a long chain fatty alcohol.  In an example, a titanium dioxide pigment was produced by precipitation from a sulphate solution using nitrile inducing nuclei and the precipitate was washed, calcined, milled and dispersed in an aqueous slurry with 0.5% sodium silicate, hydro-separated to remove aggregates, dewatered, treated with 0.2% a surfactant, filtered, dried and milled.
Patent GB-922032-A (GB)
Title: Lubrication systems
Inventor: YOUNG JOHN MICHAEL CRISPIN
IPC: F16N27/00
Filed: 1960-12-08
Abstract: 922,032. Lubricating. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 28, 1961 [Dec. 8, 1960], No. 42235/60. Class 12 (3). Means for intermittently supplying lubricant under pressure to a pump or other machine comprises a chamber 2 from which extend first and second bores 9, 10, within which are first and second pistons 6, 12, spring-loaded towards it, a constant delivery pump 4 with a source 3, to supply lubricant to the chamber 2, a passage 15 extending from the bore 10 normally covered by the piston 12, but uncovered when moved against the spring 13, communicating with the bore 5 as shown and covered by the piston 6 when it is moved against the spring 7, and one or more passages 16 extending from the bore 10 to communicate with the machine, the piston 6 being depressed before the piston 12 in use. To lubricate pumps of a reheat system of a gas turbine the passage 15 has a branch pipe 17 communicating with the source 3 through a normally-open valve 18 closed by means of a solenoid 19 when the system is operative.
Patent GB-1187085-A (GB)
Title: Distributor of Fluid Under Pressure.
IPC: F15B13/04
Filed: 1967-09-18
Abstract: 1,187,085. Levelling valves. SOC. DES AUTOMOBILES SIMCA. 18 Sept., 1967 [16 Sept., 1966], No. 42352/67. Heading B7D. [Also in Division F2] A distributer valve for an attitude correction circuit of a motor vehicle oleopneumatic suspension has a pair of spring-loaded ball valves 22, 33 disposed in conduits between a fluid pressure inlet 3, a supply opening 3 and a return 4 and each actuated by a flat 21, 32 on a rotatable control shaft 52 through cruciform push rods 20, 30. The balls 22, 33 are moved off their seats by opposite rotation of the shaft 52 and a spring-loaded ball 41 prevents returning fluid, when valve 22 is open, from passing to the inlet 3. In another embodiment the push rods and ball valves are both on the same side of the shaft.
Patent GB-1319805-A (GB)
Title: Arrangement comprising a jet-propelled missile and launching rockets therefor
IPC: F41F3/06
Filed: 1970-09-04
Abstract: 1319805 Rockets MESSERSCHMITTBOLKOW-BLOHM GmbH 4 Sept 1970 [27 Sept 1969] 42517/70 Heading F3A A jet-propelled missile 1, Fig. 1, comprises a number of launching rockets 3 and 4 releasably secured thereto by the engagement of rocket claws 6 and 8 in missile guides 10 and 12, the claws being locked in the guides by claw pins 18 engaging in recesses 25 of a ring 22, which recesses are offset in relation to recesses 20 in a ring 21 so as to trap the pins. The ring 22 is secured against inadvertent rotation by a bolt 31 releasable pyrotechnically or by means of an explosive rivet. On igniting the launching rockets the bolt 31 is also released. The thrust from the rockets is transmitted to the missile via stops 16. When the launching rockets have burnt out they are moved rearwardly by the aerodynamic force acting on them, with consequential rotation of the ring 22 by the action of the pins 18. Once the ends of the recesses 25 are brought into alignment with the recesses 20, the rockets are released from the missile by the continuing aerodynamic force.