baber/WOPTO huggingface dataset:
Patent GB-1242685-A (GB)
Title: Process for the production of 1,2-dioxolanes
IPC: C07D317/04
Filed: 1968-11-13
Abstract: 1,242,685. 3,5-Dihydroxydioxolanes. ELEKTROCHEMISCHE WERKE MUNCHEN A.G. 13 Nov., 1968 [23 Nov., 1967], No. 53746/68. Heading C2C. 3,5-Dihydroxy-1,2-dioxolanes of the Formula I wherein each of R and R<SP>1</SP> is a C 1-6  alkyl group and R<SP>11</SP> is a hydrogen atom or a C 1-6  alkyl group, are obtained by reacting diketones of the formula R-CO-CHR<SP>11</SP>-CO-R<SP>1</SP> with hydrogen peroxide in the presence of bases. The compounds may be converted to the corresponding 3,5-diperoxy compounds by reaction with hydroperoxides. Reference has been directed by the Comptroller to Specification 964,988.
Patent GB-1115229-A (GB)
Title: Bridge with automatic zero correction
IPC: G01R17/10
Filed: 1965-12-22
Abstract: 1, 115, 229. Measuring bridge circuits. CHEMCELL (1963) Ltd. Dec.22, 1965 [Dec. 24, 1964], No. 54310/65. Heading G1U. An arrangement designed to enable any zero drift in the output CD from a bridge circuit, in which a temperature variable element 16 is compared with an element 14 in standard conditions, to be compensated periodically incorporates a high gain inverting amplifier 28 with a capacitor 34 coupled across it. The output voltage relative to earth from one terminal D of the bridge is applied.at points in time when this voltage should be zero to the capacitor 34, by suitably operating the switch 36. The applied voltage is inverted by the amplifier and applied to a potential divider R 1  R 2  to provide a reference for the other bridge output terminal C, such that the potential at D becomes zero. The capacitor 34 stores the amplifier input until the next operation of the switch 36, and a circuit which enables the stored value to rapidly assume a new one at the switch operation is explained Fig. 2 (not shown).
Patent GB-1291590-A (GB)
Title: Improvements relating to dies or formes for the rotary die-cutting of blanks
Inventor: BISHOP THOMAS DESMOND
IPC: B26D7/26
Filed: 1969-11-07
Abstract: 1291590 Cutting dies DERITEND ENG CO Ltd 14 Oct 1970 [7 Nov 1969] 54569/69 Heading B4B. A forme for rotary die-cutting comprises a sheet of material 12 adapted to be attached to a roll 10 of a die cutter, the sheet being provided with at least one pad 20 of deformable material adapted to be deformed by means 22 in order to grip a cutting rule 14 against an abutment 15. The means for deforming the pad, e.g. of nylon, may be a nut screwed on to a stud 18, as shown in Fig. 1; a plain nut co-operating with a washer may be used. The abutment may be a fixed stud as shown in Fig. 1 or replaced by a second resilient assembly as shown in Fig. 3. The cutting rule may be formed with holes into which the resilient material of the pad is forced thereby increasing the damping effect of the pad. In a modification, instead of the bottom edge of the cutting rule engaging with the sheet 12, a slot may be formed therein so that the edge contacts directly the roll 10. The hole in the pad may be eccentrically positioned so that by altering the position of the block, the degree of clamping pressure may be varied.
Patent GB-1363910-A (GB)
Title: Data processing apparatus arranged for text processing
IPC: G06F17/24
Filed: 1971-11-25
Abstract: 1363910 Digital computers; text processing program INTERNATIONAL BUSINESS MACHINES CORP 25 Nov 1971 [21 Dec 1970] 54697/71 Heading G4A A digital computer executes a text processing program. A variable symbol is used for items of an ordered sequence which are used in the text stream and this variable symbol is adjusted to specify the item from the ordered sequence which is eventually desired for the text stream as it is printed. Prior to final printing the variable symbol is translated into the item from the ordered sequence that it represents and that item is formatted according to retained sequence characteristics and is inserted into the text stream for the printing operation. Typical ordered sequences may be tables, footnotes, drawings, &c. for a printed text. For example, if there were originally a sequence of twenty drawings and two were to be deleted during editing, the numbers of the other drawings would be updated by the program without any intervention by the author. In one embodiment sequences of graphic forms are represented by symbolic sequence commands in the text stream. The commands are variable and initially cause the system to assign the storage location for sequence codes in that command. The location is identified by a usage identifier in the command and, thereafter, a sequence command containing that usage identifier will operate on codes in the assigned storage location. The usage identifier is indicative of a specific use of a sequence in the text stream, e.g. numbering drawings. The sequence codes contain one or more of the following types of data; sequence item identifiers, conversion codes and formatting characteristics. A conversion code identifies the sequence which contains the sequence item and the identifier indicates which item in the sequence is to be inserted into the text stream in place of the sequence command. When a sequence command occurs in the text stream, the system first updates previously stored sequence codes at the identified location, then decodes the sequence codes and then places the sequence item in the text stream. The system will also respond to a reference command to store at a reference location a particular sequence item or the sequence codes identifying that sequence item. Thereafter, in a subsequent portion of the text, this reference may be recalled and the sequence item inserted into the text. As the reference commands are symbolic they automatically adjust if additional sequence commands are inserted in the previous part of the text. Hardware, Fig. 1.-A conventional computer system is used having core storage, disc files, tape drives, a paper tape punch and reader, a keyboard through which text material and text composition commands may be entered, and a printer.
Patent GB-1198508-A (GB)
Title: Production of Solutions of Quaternary Ammonium Hydroxides
IPC: C07C/
Filed: 1967-12-01
Abstract: 1,198,508. Quaternary ammonium hydroxides. BADISCHE ANILIN- & SODA-FABRIK A.G. 1 Dec., 1967 [2 Dec., 1966], No. 54708/67. Heading C2C. Solutions of quaternary ammonium hydroxides, containing the cation of general formula in which R<SP>1</SP> denotes an aliphatic, cycloaliphatic, araliphatic or aromatic radical having up to 20 carbon atoms, R<SP>2</SP> denotes an alkyl radical having one to four carbon atoms and R<SP>3</SP> denotes an alkyl radical having one to four carbon atoms, or R<SP>2</SP> and R<SP>3</SP> together with the nitrogen atom which bears them as substituents form a five-membered or six-membered heterocyclic ring, and R<SP>4</SP> denotes an alkyl radical having one to four carbon atoms are obtained substantially free from extraneous ions by reacting the corresponding quaternary ammonium oxalate or carbonate with an alkaline earth metal hydroxide in the presence of water and/or a water-soluble solvent.
Patent GB-1120236-A (GB)
Title: Filter cleaner mechanism for pneumatic material conveying system
IPC: B65G53/60
Filed: 1965-12-31
Abstract: 1,120,236. Air filter. VAC-u-MAX. 31  Dec., 1965 [31 Dec., 1964], No. 55357/65. Heading BIT. [Also in Divisions B8 and F2] In a filter used at the downstream end of a pneumatic conveying system, air and solids enter chamber 10 by inlet 11, and air passes upwards through fabric filter element 16 to an air ejector pump 17, and a common control circuit operates the pump and a filter element shaking mechanism 18, 19 so that when the pump is switched off the mechanism operates for a short period. The hopper 12 has a valve 13 which is closed by the suction of pump 17 and so is also operated in phase with the pump to discharge solids when the pump is off. Mechanism 18 consists of an eccentric (39) which acts on a grommet secured to the cross-over parts of two straps (41) sewn to the filter bag 16 and is rotated by the shaft of a pneumatic motor 19. Air supply 27 is connected to nozzle 24 of pump 17 and to motor 19 through portions of valve 50 which are respectively biased to open and closed positions (Fig. 4, not shown) and are actuated by compressed air from a manually or automatically controlled valve (51). A further valve (52) (Figs. 3, 5, not shown), between valve 50 and motor 19 has a variable orifice allowing inlet air to shift it to the closed position after a few seconds of passing air to limit the element shaking period. The valves could alternatively be solenoid operated.
Patent GB-1411629-A (GB)
Title: Magnetic recording head and manufacture thereof
IPC: G11B5/127
Filed: 1972-12-01
Abstract: 1411629 Magnetic transducers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 1 Dec 1972 [14 Dec 1971 (3) 15 Dec 1971] 55662/72 Heading G5R A recording head in which recording takes place at a point on the gap 2 which can be moved along the gap 2 by providing bias magnetization from two electromagnets 7, 7<SP>1</SP> comprises inner polepieces 3, 3<SP>1</SP> defining the gap 2 and formed of one or more plates of magnetically soft, anisotropic material, whose easy direction is perpendicular to the gap 2, outer polepieces 6, 6<SP>1</SP> magnetically coupled to the inner polepieces 3, 3<SP>1</SP>, and signal coils 11, 11<SP>1</SP> on the inner polepieces, the electromagnets 7, 7<SP>1</SP> each being magnetically coupled to the inner and to the outer polepieces and producing in the former opposing magnetizations which cancel only at one region intermediate the ends of the gap 2. The inner polepieces 3, 3<SP>1</SP> may as shown in Fig, 1, be bent from a single plate, e.g. of permalloy and may have etched slits (37), Figs. 5, 6 (not shown), parallel to the easy direction of magnetization. Blocks 5, 5<SP>1</SP> of magnetic material couple the inner polepieces 3, 3<SP>1</SP> to the electromagnets 7, 7<SP>1</SP>. Alternatively, Fig. 9(c), each inner polepiece may be formed from two plates 127, 139: the plate 139 is deposited on a non-magnetic substrate 121, e.g. of glass, which bridges a U- shaped outer polepiece 106, while the plate 127 is similarly formed on a substrate 129 and is secured to one limb 198 of the outer polepiece 106. The latter substrate may be dispensed with, Figs. 10, 11 (not shown). Reinforcing material 125 is provided at the gap 102 and complementary head halves are secured to a magnetic block 105 which couples the plates 139, 139<SP>1</SP>.
Patent GB-1166876-A (GB)
Title: Reinforced Rubber Structure and method of producing the same
IPC: B29C70/04
Filed: 1967-12-07
Abstract: 1,166,876. Laminated rubber. TOYO RAYON K.K., and BANDO RUBBER MFG. CO. Ltd. 7 Dec., 1967 [9 Dec., 1966; 30 Dec., 1966; 24 July, 1967], No. 55691/67. Heading B5N. [Also in Division C3] A laminate is made by superimposing a plurality of thin sheets of rubber containing short artificial fibres oriented longitudinally of the sheet such that each sheet is oriented in the same direction and curing under pressure. The rubber may be natural rubber, SBR, nitrile rubber &c., and exemplified fibres are of nylon, rayon, polyester and polyvinyl alcohol. The fibres are provided with an adhesive which may be coated on the fibres or formed in situ in the composition by suitable compounding of the rubber.
Patent GB-1122339-A (GB)
Title: Improvements in or relating to circuit arrangements for suppressing periodic interference voltages
IPC: H04N5/213
Filed: 1966-12-13
Abstract: 1,122,339. Transistor gating circuits. FERNSEH G.m.b.H. 13 Dec., 1966 [13 Dec., 1965], No. 55712/66. Heading H3T. A circuit for separating a repetitive pulse signal from an unwanted signal of approximately the same frequency clamps the signal path to a constant level between pulses by means of a CR circuit 4, 5, having a time constant which is small compared with the periodicity of the unwanted signal, which is connected in circuit by a switch 8. During the occurrence of a pulse transistor 9 is switched on, switching off transistor 8 to remove the clamp from resistor 5. After the termination of a pulse, transistor 8 again becomes conductive to clamp the signal path to a constant potential (black level). Zener diode 6 determines the level at which transistor 9 switches. In a modification, Fig. 2 (not shown), the output from transistor 9 is fed to a long-tailed pair (13, 14) the output signal being taken from one (14) and the control signal for transistor 8 being taken from the other (13).
Patent GB-1240579-A (GB)
Title: Data expander for display system
IPC: G09G3/02
Filed: 1969-11-19
Abstract: 1,240,579. Facsimile apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 19 Nov., 1969 [13 Dec., 1968], No. 56515/69. Heading H4F. Apparatus for use in a data display system, for example producing images of alphanumeric characters on a printing drum in response to binary input data representing a point-by-point reconstruction of the images, comprises logic circuitry deriving signals controlling the addition to the image of further areas which are segments of the areas designated by individual incoming bits, the logic arranged so as to " round off "corners in the originally-designated image. As shown in Fig. 1 nine bits representing a 3 x 3 picture area are read into register 10, and unit 11 generates four bits Q1<SP>1</SP>-Q4<SP>1</SP> controlling four display segments (see Fig. 2) of bit area J. In mode 1 the segments are square, and in an alternative mode 2 they are triangular (formed by the two diagonals of the square area J). If area J is designated by the bit in 10 for display, signals pass to all four units 13-16, but if not signals may be generated by 11 for some of the segments if neighbouring areas are designated for display. The segmented signals are described as generating optical outputs for four optical fibres arranged to produce the image of " corrected " bit area J for focusing on to a film on a print drum. The data in 10 is shifted in threes so as to process successively four-segment areas in a vertical column as the drum rotates, the optical system then being indexed one position for the next column. Logic circuitry for producing the signals Q1<SP>1</SP>-Q4<SP>1</SP> for either mode is shown schematically.
Patent GB-1357469-A (GB)
Title: Electron-beam generators for transit-time electron discharge tubes
IPC: H01J23/065
Filed: 1972-12-07
Abstract: 1357469 Velocity-modulated tubes SIEMENS AG 7 Dec 1972 [2 March 1972] 56590/72 Heading H1D An electron gun for a transit-time tube, operable at two different power levels, includes a control grid which is spaced from the cathode and includes a portion which surrounds a central portion of the emissive area of the cathode and is such that the emission from the cathode area surrounding the central portion can be controlled independently of the emission from the central portion. As shown, the outer portion of the cathode emissive surface is covered by the annular grid 18, and the inner portion 19 projects forward flush with the grid surface, an annular shadow grid 20, with apertures aligned with those of the control grid, between interposed between the control grid and the cathode. The focusing anode 30 draws a current I 1  or I 2  according to whether the control grid is negative or positive, respectively. In further embodiments (Figs. 1 to 3, and 6 to 9, not shown), which avoid the stepping forward of the central cathode portion 19, the latter is covered by an inner portion of control grid electrically insulated from the annular portion; in this case, a common shadow grid for the two grid portions may be employed (Figs. 6 to 9), and the grid portions are supported by separate metal plates 8 extending through the envelope wall and separated by ceramic envelope portions 9. The cathode includes radiation shields 6.
Patent GB-1244963-A (GB)
Title: Improvements relating to electric accumulators
Inventor: BAGSHAW NORMAN ERNEST
IPC: H01M4/68
Filed: 1967-12-13
Abstract: 1,244,963. Lead base alloy. ELECTRIC POWER STORAGE Ltd. Dec. 10, 1968 [Dec. 13, 1967], No. 56622/67. Heading C7A. A lead base alloy, for forming plate grids in lead acid accumulators, comprises:- Cd 0À5-3% in approximately equal amounts Sd 0À5-3% J Ag 0À05-0À25% and optionally Al 0À01-0À1% and Sn up to 0À5% the balance, apart from incidental ingredients and impurities, being lead.
Patent GB-1375968-A (GB)
Title: Method for fabricating an offshore structure
IPC: E02B17/02
Filed: 1971-12-07
Abstract: 1375968 Offshore structures; coffer dams KAISER STEEL CORP 7 Dec 1971 56816/71 Heading E1H Modular, selectively ballastable sections 10 of a multi legged offshore structure 14 are floated to an offshore site, aligned end to end and then drawn together by a cable and winch system 19, the abutting compartment containing watertight legs 24 being initially secured together by releasable clamps 21 and then after being surrounded by a floating coffer dam 22 from the interior of which the water is pumped out, being secured together by rivetting or as shown by filler arc welding 120. The structure 14, which may have three or more legs is then selectively ballasted to upend it and lower it through the water 18 to be secured to the sea bottom. Preferably whilst the aligned sections 10 are being drawn together tugs 20 exert a lesser opposing force on them to keep them in alignment. Extending guide elements 56 secured to the ends of the legs of at least one of the sections help maintain alignment as the sections abut. The collapsible coffer dam 22 (and see Fig. 5 not shown) is formed of hinged sections 74 supported on selectively ballastable inflatable or rigid pontoon elements 76, the sections engaging round and watertightly sealing against the abutting legs 24, to form an open topped chamber C.
Patent GB-1157060-A (GB)
Title: Process for the manufacture of pigmentary titanium dioxide of improved properties
IPC: C09C1/00
Filed: 1967-12-14
Abstract: 1,157,060. Treating T10 2 . TITAN G.m.b.H. 14 Dec., 1967 [31 Dec., 1966], No. 56967/67. Heading C1N. TiO 2  pigment is treated with a polyalkylene glycol of formula where R is H or lower alkyl and may be the same or different in different parts of the molecule, and n is 2-4; e.g. di-, tri-, or tetraethylene, propylene-1,2, butylene-1,2 or 2,3, or isobutylene glycol. The amount used may be 0À1-2% by wt. of the dry pigment. It may be added in pure form or as an aqueous solution, either to the dry pigment during steam jet milling, or to an aqueous paste or suspension of the pigment which may then be spray dried or dried in an oven under normal or reduced pressure then jet-, roll-, or pin-milled. The TiO 2  may be precoated with oxides of Si and Al, Ti and Al, or Ti, Si, and Al, by treatment with water-glass, titanyl sulphate, and Al sulphate. The TiO 2  may be rutile or anatase and may be made by the sulphate or chloride process.
Patent GB-1150660-A (GB)
Title: Polymerization Process
IPC: C08F291/00
Filed: 1966-12-22
Abstract: 1,150,660. Suspension polymerization. MONSANTO CO. 22 Dec., 1966 [28 Dec., 1965], No. 57390/66. Headings C3G and C3P. A suspension polymerization process is carried out in the presence of an agent comprising a water-soluble polymeric carboxylic acid and a water-soluble polymeric alcohol. The agent is used in particular for the polymerization of a vinyl or vinylidene aromatic monomer, together with a comonomer if desired, e.g. acrylonitrile or methacrylonitrile. The polymerization may be carried out in the presence of partially polymerized material or a preformed polymer, especially a rubber, in which case the monomer is at least in part grafted on to the rubber. The partially polymerized material is formed by bulk polymerization of the monomer to form a syrup which is then mixed with water and polymerization is completed in suspension. The polymeric carboxylic acid agents specified include copolymers of acrylic acids and alkyl acrylates, of vinyl acetate and maleic anhydride, or of ethylene and maleic anhydride, or poly(meth)acrylic acid. The polymeric alcohol may be of formula wherein X is hydrogen, n is at least 10 and at least 5 mol per cent but not more than 35 mol per cent of X is an ester group. In Example 1 a prepolymer syrup is produced. by polymerizing styrene in the presence of a polybutadiene rubber and polymerization is completed in an aqueous dispersion containing polyvinyl alcohol with residual acetate groups and an acrylic acid/2-ethyl hexyl acrylate copolymer. A partially hydrolysed polyvinyl acetate is used as the polymeric alcohol in Examples 2 and 3. Examples 4 to 8 are similar to Example 3, except that the polymeric acid used is (4) polyacrylic acid, (5) a vinyl acetate-maleic anhydride copolymer, (6) polymethacrylic acid and (7) an ethylene-maleic anhydride copolymer. In Examples 9 and 10, styrene and acrylonitrile are partially polymerized in the presence of a polybutadiene rubber prior to dispersion of the syrup in an aqueous medium containing partially hydrolysed polyvinyl acetate and an acrylic acid/ 2-ethylhexyl acrylate copolymer.
Patent GB-1450108-A (GB)
Title: Method of injection moulding hollow preforms
IPC: B29C45/34
Filed: 1973-12-13
Abstract: 1450108 Injection-blow moulding UNILEVER Ltd 13 Dec 1973 [14 Dec 1972] 57722/73 Heading B5A A hollow thermoplastic preform to be blowmoulded is formed by injection moulding in a mould having a core formed by a mandrel having a blowing channel communicating with the outside surface of the mandrel wherein a pressure drop from the outside to the inside of the preform is established before release of the injection pressure, e.g. by applying a vacuum via the blowing channel. The pressure drop may be maintained from the commencement of injection or before preferably until the preform has completely set. As shown, the mandrel comprises a sleeve 5 and a relatively movable tip 6, part 6a of which is mounted on blowing tube 11. When the tip 6 is raised, groove 15 between tip 6 and sleeve 5 communicates with tube 11 via radial passages 13. The mandrel also includes a tube 21 forming passages 22a, b for coolant. The two-part injection-mould 3, 4 may also contain coolant passages. The tube 11 is communicable with a vacuum source 16 operated by control means 19 in the tip-closed, injection position. The mandrel is preferably mounted on a turret for rotation to the blowmoulding position.