baber/WOPTO huggingface dataset:
Patent GB-1525981-A (GB)
Title: Mixing of viscous materials
IPC: B01F7/04
Filed: 1975-10-03
Abstract: 1525981 Mixing viscous materials WILLOW TECHNOLOGY INC 3 Oct 1975 [7 Oct 1974] 40581/75 Heading B1C A mixer for very viscous materials has a container with two parallel counter-rotating shafts 30, 31 each with two double wedge mixing tools 27 and two single wedge tools 32. The container has the form of two intersecting cylinders; the paths of the tools overlap in the central zone between the shafts between which the tools move upward; the width of the tools is such that they sweep the entire surface of the container. The tools 27 may have their edges raised at 28: they may interdigitate in the central zone (see Fig. 5, not shown) or have a phase difference of 90 (Fig. 10, not shown). The container may have a heat exchange jacket and be tilted for discharging by a hydraulic cylinder 15: it may be operated under increased or reduced pressure.
Patent GB-1403925-A (GB)
Title: Curable compositions
IPC: C08G65/331
Filed: 1972-09-01
Abstract: 1403925 Curable compositions CIBAGEIGYAG 10 Aug 1973 [1 Sept 1972] 40653/72 Heading C3R A curable composition comprises (i) an unsaturated ester of formula where a is at least 1, b is from 2 to 6, R is a radical free from any carbonyloxy group, having a valency b, which remains when b hydroxyl groups are removed from a polyhydric alcohol or a polyhydric phenol, the alkylene group has a chain of 2 to 6 carbon atoms between consecutive oxygen atoms and R<SP>1</SP> is -H or the monovalent residue of an alcohol after removal of an -OH group, and (ii) a polymercaptan having at least two mercaptan groups per molecule, the sum of the number of ethylenic double bonds in the unsaturated ester (i) and the number of mercaptan groups in the polymercaptan (ii) being more than 4 and the proportions of the materials (i) and (ii) being such that there are from 0À8 to 1À1 mercaptan groups per ethylenic double bond. The composition will cure at room temperature but may be heated to obtain a cured product; an accelerator may be added to the composition. Examples are given.
Patent GB-1237444-A (GB)
Title: Improved stopper for molten metal containers
IPC: B22D41/18
Filed: 1968-08-26
Abstract: 1,237,444. Ladle stoppers. MAGNESITA S.A. 26 Aug., 1968 [5 Jan., 1968], No. 40670/68. Heading F4B. A ladle stopper rod comprises a stopper head 6 formed with a first central cylindrical cavity having a flat bottom with a second central screw-threaded cavity, a stopper rod 1 with a flange 4 and screw-threaded stub 5 co-operating with said second cavity and a sleeve 2 extending slightly above the surrounding edge of the first cylindrical cavity. The head 6 may have a recess surrounding the first cavity (Figs. 1, 12 and 13) or a raised collar (Figs. 5, 6, 11 and 14). The stopper rod may have conventional refractory sleeves and the interstices between parts may be filled with refractory mortar. The stub 5 and lower surface of the flange 4 may be provided with grooves to permit escape of excess mortar. The stub may be separately screwed into the flange 4.
Patent GB-884478-A (GB)
Title: Polymethacrolein derivatives and their production
IPC: C08G2/00
Filed: 1958-12-18
Abstract: Normally solid, high molecular weight polymethacrolein derivatives having units of the structure: <FORM:0884478/IV (a)/1> where R is an alkyl, aralkyl, cycloalkyl or acyl radical and n is a number not less than 1 may be prepared by reacting a substantially linear, high molecular weight polymer of methacrolein with an anhydride of a carboxylic acid such as acetic, butyric, caproic, caprylic or benzoic acid, with a non-phenolic alcohol such as an aliphatic, aryl aliphatic or alicyclic alcohol, or a substituted alcohol containing halogen or sulphur-containing radicals, in the presence of an acid catalyst, such as sulphuric acid, p-toluene sulphonic acid, hydrogen chloride, phosphoric acid, polyphosphoric acid or a solution of boron trifluoride in orthophosphoric acid.  The alcohol or substituted alcohol may be methanol, ethanol, butanol, isopropanol, decanol, benzyl alcohol, cyclohexanol, ethylene chlorohydrin or 2-mercaptoethanol.  The polymer may be reacted in solution in a solvent such as dimethyl formamide, pyridine, dimethyl acetamide, dimethyl sulphoxide or tetramethylene-cyclic-sulphone.
Patent GB-957750-A (GB)
Title: Surface aerator
IPC: C02F3/16
Filed: 1961-11-15
Abstract: In a method of and apparatus for the surface aeration of liquids an agitator rotor consisting of a disc 10 with depending blades 12 on a vertical shaft 11 is rotated at such speed and at such distance S below the quiescent level L of the liquid that the upper surface of the rotor becomes free of liquid and a standing wave or hydraulic jump is formed without the formation of spray. Air is entrained in the turbulence of the hydraulic jump and is sucked under the edge of the rotor into the low pressure zones behind the blades. Air may be further admitted to these zones by slots or holes 15 or tubes 16; it must not be allowed to enter the centre of the rotor. The area of each hole must be at least 8% of the area of the associated blade. The distance between the outer edges of the blades is preferably 0.8 to 5.0 times their width; the distance S and the height of the blades is not more than 3/10 the peripheral velocity head, and the width of the blades is not more than 1/4 the diameter of the rotor, which is rotated with a peripheral velocity of 10-20 f.p.s. An additional <PICT:0957750/C1/1> <PICT:0957750/C1/2> mixer, not depicted, may be used in the bottom of the container. The method and apparatus may be applied to the purification of sewage.
Patent GB-943468-A (GB)
Title: Improvements in and relating to rubberised hair pads
Inventor: FALKNER ERIC ARTHUR
IPC: B29B11/16
Filed: 1958-12-19
Abstract: 943,468. Resilient fittings for boxes. HAIRLOK CO. Ltd. March 17, 1960 [Dec. 19, 1958], No. 41130/58. Heading B8P. [Also in Division F2] Packaging pads of rubberized hair &c. comprise layers 1, Figs. 5, 6, lying in planes extending perpendicularly to the load-supporting surface, adjacent groups of layers meeting at an angle in the plane of the load-supporting surface. A corner pad, Fig. 7, may comprise three pads adhesively joined at right angles at their contacting surfaces 12. The pads may be cut from blocks formed by layers of the rubberized hair united by adhesives.
Patent GB-1312338-A (GB)
Title: Sealting ring for flat gaskets in particular flat gaskets of soft  material
IPC: F16J15/12
Filed: 1970-08-27
Abstract: 1312338 Joint-making packing REINZ DICHTUNGS GmbH 27 Aug 1970 [28 Aug 1969] 41192/70 Addition to 1277094 Heading F2B The U-section metallic enclosure 2 of a softer material than that of the circular-section hard core ring 1 as disclosed in the parent Specification is plastically deformable and constructed of a plurality of strata 2a, 2b and 2c which may be of different thickness and have different material properties. One or two steel core rings 1 may be provided of the same or different diameters. The middle stratum 2b may be made of a harder material than the inner and outer strata 2c, 2a and the outer stratum may be flanged at 2d over the flat cylinder head gasket 4. Vibration damping lugs 2e may also be provided.
Patent GB-1140477-A (GB)
Title: A method of obtaining sorbitol
Inventor: KULBAKH VALTER OSVALDOVICH
IPC: C07C31/26
Filed: 1967-09-11
Abstract: 1,140,477. Preparing sorbitol by hydrogenation of glucose. LENINGRADSKY NAUCHNO - ISSLEDOVATELSKY INSTITUT ANTIBIOTIKOV. 11 Sept., 1967, No. 41312/67. Heading C2C. Sorbitol is prepared by the catalytic hydrogenation of glucose in aqueous solution at 8-9 atmospheres at a pH of 8À3-8À5 and 120- 128‹ C. in the presence of 15% by weight of the glucose of Raney nickel catalyst, the hydrogenation being carried out under turbulent flow conditions. The process may be performed in a hermetic-type reactor, the solution being stirred with a high-speed impeller to give flow conditions with a preferred Reynolds number of 2300-10,000.
Patent GB-1193739-A (GB)
Title: Process for the Production of Alkoxy Silanes
Inventor: ROTHE WILFRED
IPC: C07F7/08
Filed: 1968-08-30
Abstract: 1,193,739. Preparation of trialkoxy silanes. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 30 Aug., 1968 [6 Sept., 1967], No. 41527/68. Heading C3S. Trialkoxy silanes are prepared by reaction of an aliphatic alcohol with SiHCl3 in an aromatic solvent at -40 to -90 C., an inert gas being passed continuously through the mixture to remove HCl formed. Suitable solvents are toluene, the xylenes, ethylbenzene, mesitylene and isopropylbenzene. In Example 1 methanol is added dropwise to SiHCl 3  in xylene at -50 C. through which N 2  is bubbled; in Example 3 ethanol is added to SiHCl 3  in isopropylbenzene at -60 C.
Patent GB-1323759-A (GB)
Title: Apparatus for forming a magnetic core winding end turn assembly
IPC: H02K15/00
Filed: 1970-08-28
Abstract: 1323759 Shaping coil end turns GENERAL ELECTRIC CO 28 Aug 1970 [5 Sept 1969] 41565/70 Heading B3A Apparatus for forming at least one magnetic core winding end turn assembly includes first and second wall means respectively disposed radially outwardly and radially inwardly of the position of the unformed at least one end turn assembly, first and second actuating means for moving the first and second wall means respectively between retracted and extended positions, the wall means in their extended positions confining the end turn assembly radially relative to the core, and third wall means movable axially relative to the core between the first and second wall means to form the end turn assembly into a compact mass. A stator core 22 having coils 28, 34 with unformed end turns 30, 31 and 35, 36 respectively is placed about a central mounting member 48 on a lower end turn forming unit 40. An upper end turn forming unit, Fig. 8, is lowered and teeth 125 on inner forming members interfit with teeth 119 on the member 48. Cam rings 72, 73 on both upper and lower forming members are rotated, the rings 73 first driving upper and lower cuff supports 69 radially inward to hold slot liners 27 and then outer forming members 59 into contact with the end turns. As the members 59 move, the cam rings 72 drive inner forming members 55 radially outwardly, so that jaws 56 thereof contact the end turns. Upper and lower forming rings 101 are then actuated and as they enter the spaces between the forming members 55, 59 the end turns are compacted and shaped, Fig. 12 (not shown).
Patent GB-1061868-A (GB)
Title: An appliance for supporting shuttering for floors and the like
Inventor: CHAMPION STEWART
IPC: E04G17/16
Filed: 1964-10-12
Abstract: 1,061,868. Supporting shuttering for casting floors. SCAFFOLDING (GREAT BRITAIN) Ltd. Aug. 6, 1965 [Oct. 12, 1964], No. 41584/64. Heading E1S. Floor shuttering is supported on beams supported on angle plates 11 fixed to a screw rod 7 adjustably mounted in a bracket 3 adapted to rest on a wall &c. by means of a projection 2.
Patent GB-1181335-A (GB)
Title: Toilet Soap with Inserted Carrier
Inventor: BJORN ACTON
IPC: C11D17/04
Filed: 1968-09-03
Abstract: 1,181,335. Soap cake support. A. BJORN. 3 Sept., 1968, No. 41937/68. Heading A4V. A soap cake has a support or carrier 17 inserted in a groove having a greater depth than the carrier, so that as the soap is used up, the carrier sinks into the groove and does not inconveniently project from the surface. The carrier may be in the form of a ring on one or both sides of the soap cake, or any other shape suitable to provide a stable resting surface (e.g. cruciform or H-shaped), or alternatively may be made of a magnetic material for use with a conventional magnetic soap holder.
Patent GB-1445780-A (GB)
Title: Automatic compression relief mechanism
IPC: F01L13/08
Filed: 1974-09-27
Abstract: 1445780 Automatic compression relief mechanism BRIGGS & STRATTON CORP 27 Sept 1974 [10 June 1974] 42148/74 Heading F I K The invention relates to an internal combustion engine having an automatic compression relief mechanism for causing a valve 10 to be unseated during a predetermined portion of each engine cycle at engine cranking speeds and to occupy its seated position during this predetermined portion of the engine cycle at engine running speeds. The  mechanism comprises a flyweight 32 which cooperates with an arcuate cam member 30 which is located in a cavity in the cam-shaft 21. As the engine decelerates from running speed to a stop the flyweight 32 swings inwardly under the influence of its spring 34 and the flyweight applys radially inward force to the adjacent end portion 47 of the cam member 30 projecting the tappet engaging portion 46 of the cam member to a valve unseating position. Conversely as the flyweight swings outwardly in response to centrifugal force developed at engine operating speeds its camming surface allows the flyweight engaging end portion 47 of the cam member to move radially outwardly as the tappet engaging end 46 of the cam member is pushed into the cavity 37 by the force of the valve spring 15 a spring ring retainer 43 confines the cam member in its cavity. The valve 10 may be either the intake valve or the exhaust valve or even a valve especially provided for purposes of compression relief.
Patent GB-1126023-A (GB)
Title: Electrical circuit arrangement
IPC: H01P5/02
Filed: 1965-10-06
Abstract: 1,126,023. Matrix stores. INTERNATIONAL BUSINESS MACHINES CORP. 6 Oct., 1965 [29 Oct., 1964], No. 42494/65. Heading G4C. [Also in Divisions H1 and H3] The sections of line interconnecting the loads in a matrix store (e.g. tunnel diodes or magnetic cores) have different impedances such that each section is terminated in its characteristic impedance. The line is constructed of a metallic strip MS separated from a ground plane P by dielectric material DM (Figs. 4-8, not shown). If the loads are shunted across the line, the impedance of each section is RZ/(R+Z) where R is the following load impedance and Z is the impedance of the next line section, so that the section impedances increase hyperbolically away from the source. The section impedance may be constant between load connections so that the overall increase is stepwise (Figs. 5, 7, not shown), or may increase continuously (Figs. 4, 6, not shown). For loads in series, the line section impedance should decrease linearly away from the source.
Patent GB-893257-A (GB)
Title: Improvements in or relating to porcelain enameled labels
Inventor: STEERY WILLIAM MICHAEL
IPC: G09F3/02
Filed: 1960-12-12
Abstract: 893,257. Labels. BOEING AIRPLANE CO. Dec. 12, 1960, No. 42724/60. Drawings to Specification. Class 73 [Also in Groups VIII and XVI] A label comprises an uninterrupted carrier sheet, e.g. aluminium foil, of a thickness from 0.001 to 0.005 of an inch coated with porcelain enamel of a thickness less than the thickness of the carrier sheet and not greater than 0À0015 of an inch, which coating is removed at spaced locations for its entire thickness to define indicia. The face opposite the porcelain enamel coating is provided with a layer of pressure sensitive adhesive, which is covered with a protective sheet. After application and hardening of the enamel, its surface is processed by a lithographic printing press or by a silk screen process so that ink is applied to the areas which it is desired to preserve and the area to be removed by etching remains exposed. The entire surface of the coating is then covered with fine powdered material such as rosin which adheres to the inked portions. The loose powder is removed by suction and the remaining powder fused by heat forming an overlay. The etching is then effected by immersion of the coated sheet in a solution of ammonium bifluoride followed by soaking in a solution of nitric and hydrofluoric acids which removes all the enamel not covered by the overlay. The overlay is then removed by scrubbing and dissolving it in a lacquer thinner such as acetone or methyl ethyl ketone.
Patent GB-891047-A (GB)
Title: Ball game equipment
Inventor: BANTOW BRUNO WILLY ALFRED OTTO
IPC: A63B59/02
Filed: 1959-12-16
Abstract: 891,047. Projecting and catching appliances for games. JANSEN, L. Dec. 16, 1959, No. 42851/59. Class 132(2) A bat or racquet adapted as a ball-catching device and of table-tennis bat structure has a hole 3 in the blade 1 and a catching device 10 behind the hole, the hole being slightly larger than the ball 4 but being edged with an annulus 8 of elastic material the inner diameter of which is smaller than that of the ball which can thus enter the device 10 and be retained therein. The bat also has unpocketted passages 7 to reduce air resistance. As shown the device 10 is a plastic cup with a hole 11 in the bottom to allow manual ejection of the ball but it may be made of net or other flexible material. The blade may have more than one hole and catching device.
Patent GB-936045-A (GB)
Title: Improvements in or relating to apparatus for measuring or responsive to the conductivity of a material
IPC: G01N27/06
Filed: 1960-12-14
Abstract: 936,045. Determining conductivity. WAYNE KERR LABORATORIES Ltd., and R. CALVERT. Nov. 29, 1961 [Dec. 14, 1960], No. 43055/60. Class 37. In a conductivity measuring arrangement an alternating current is fed via terminals 12, 13, Fig. 1, into the material under test and the voltage arising from the flow of alternating current between a pair of electrodes 14, 15, spaced in the direction of flow, and the voltage induced by the current in a coil 17 wound on a toroid 18, are measured. In the particular arrangement of Fig. 1, the signal in coil 17 is compared with a reference voltage in a comparator 20 to control a servo mechanism 24, and maintain a constant voltage in winding 17, the voltmeter 16 indicating conductivity. In a modified arrangement described with reference to Fig. 2 (not shown) the alternating current is applied electrostatically, the voltage terminals are accommodated in branch pipes which include valves for the removal of the terminals and are connected to operate alarms through a comparator. The material may be liquid or solid.
Patent GB-1236517-A (GB)
Title: Pneumatic press
Inventor: REEVES JOHN F
IPC: B30B15/16
Filed: 1969-04-17
Abstract: 1,236,517. Pneumatic presses. R. P. LICKLITER and E. ABBOTT. 17 April, 1969, No. 43420/70. Divided out of 1,236,516. Heading B5F. The subject matter is all included in the parent Specification, but the claims relate to control means comprising means responsive to the presence of a workpiece for completing an electric circuit to initiate ram movement, and means responsive to predetermined movement of the ram for interrupting the circuit.
Patent GB-964268-A (GB)
Title: Improvements in or relating to lubricants
Inventor: GUMINSKI ROMAN DOMINIK
IPC: C10M169/04
Filed: 1961-12-05
Abstract: A high viscosity lubricant composition having a viscosity in excess of 600 seconds Redwood No. 1 at 100 DEG  F. comprises a light mineral base oil having a bromine number below 1.5, a polybutene, and as a viscosity stabilizing additive an organic substance of molecular weight less than 500 containing a reactive double bond, e.g. propylene tetramer, styrene, or acrylic acid. Optional additives referred to are cetyl, lauryl and stearyl alcohols, para-tertiary-butyl catechol, para-tertiary-butyl phenol, and the anti-oxidants known under the Registered Trade Marks "Santolube AR" and "Topanol BHT." Specification 819,073 is referred to.
Patent GB-1191629-A (GB)
Title: Fuse Holders
Inventor: MATTHEWS BENJAMIN WILLIAM
IPC: H01H85/20
Filed: 1966-09-30
Abstract: 1,191,629. Fuse holders; two-part couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 19 Sept., 1967 [30 Sept., 1966], No. 43763/66. Headings H2E and H2G. A fuse holder for use with a cartridge fuse comprises two similar conductive clips 11 in contact with separate conductors 17, 18 and supported by a printed circuit board 15, each clip including a resilient base 12 in contact with the respective printed conductor and a pair of upstanding arms 13 adapted to grip and electrically contact one end of a cartridge fuse, the arrangement being such that when a cartridge fuse is engaged with the clips 11, the conductors 17 and 18 will be electrically interconnected through the fuse. Each clip has a plurality of tags 14 which extend through slots 16 in the board 15 and are deformed to secure the clip to the board. The base 12 is bowed to present a resilient convex surface to its respective conductor, the base being deformed to make good contact with the conductor when it is secured to the board. In a modification (Fig. 3, not shown), a conductive terminal member (19) adapted to receive an electrical lead may be clamped between the base 12 and the printed circuit conductor.
Patent GB-1108493-A (GB)
Title: Coagulation process
IPC: C02F11/12
Filed: 1965-10-15
Abstract: A copolymeric product containing 85 mole per cent of acrylamide and 15 mole per cent of sodium acrylate is produced by adding acrylamide to a sodium hydroxide solution of acrylic acid of pH 7-9.  The pH is adjusted to 8.5 and the whole is added to a toluene solution of sorbitan mono-oleate and the mixture polymerized in the presence of potassium persulphate and sodium metabisulphite.  Polymerization is then completed in the presence of added azobisisobutyronitrile.  A similar process is described in Example II to produce a copolymer of 30 mole percent acrylate and 70 mole per cent acrylamide.  A copolymer product of 52 mole per cent acrylamide and 48 mole per cent acrylate is produced by a similar process,  described in Example III, but without the azobisisobutyronitrile.  A similar process is described in Example IV for a copolymer of 95 mole per cent acrylic acid salt and 5 per cent acrylate.ALSO:Solids in suspension in aqueous liquids, such as sewage, are coagulated in a process where a cationic material is added while the liquid is subjected to turbulent flow followed by adding an anionic material and subjecting to laminar flow.  Exhaustive examples of materials are given including natural and synthetic polyelectrolytes and inorganic salts.
Patent GB-1024653-A (GB)
Title: Removal of metal contaminants from polymeric materials
IPC: C08F6/02
Filed: 1962-11-20
Abstract: Polymers or copolymers prepared from olefines, diolefines and vinyl compounds using an anionic catalyst comprising a reducing metal compound and a reducible metal or a reducible metal compound are purified by treating the solid polymer, which has been separated from the polymerization reaction medium, with a wash liquid containing a small amount, not more than 10%, of a chelating agent which is a 1,3-dicarbonyl compound and containing from 1 to 5% by volume of water.  The washing is carried out at a temperature between room temperature and a temperature just below the softening point of the solid polymer being washed.  Lists of suitable monomers and catalysts components are given.  The preferred alcohol of the wash liquid is an aliphatic alcohol containing 1 to 8 carbon atoms and the preferred 1, 3-dicarbonyl compounds are diketones, keto esters and 1,3-diketo alcohols; ethyl aceto acetate and acetyl acetone being the only compounds exemplified.  In the examples: (1) polypropylene prepared using as catalyst a 1:1:1 mixture of LiAlH4, TiCl3 and MgO, is filtered from the reaction medium, concentrated, extruded into ribbons and chopped into pellets and the pellets are then treated with isobutanol containing 2% by weight of acetylacetone and varying amounts of water; (2) polypropylene pellets are treated countercurrently with a stream of isobutanol containing 1.77% by weight of acetyl acetone and 2% by volume of water.ALSO:The decomposition of a 1,3-dicarbonyl compound in an alcoholic liquid is inhibited by adding from 1 to 5% by volume of water, the amount of 1,3-dicarbonyl compound present being not more than 10% by weight. The preferred alcohols are aliphatic alcohols wherein the arkyl radical contains 1 to 8 carbon atoms. Generally the 1,3-dicarbonyl compounds have the formula <FORM:1024653/C2/1> where x, y and z are hydrogen, hydroxy, alkoxy containing 1 to 6 carbon atoms, alkyl containing 1 to 6 carbon atoms, phenyl or substituted phenyl radicals.  Preferred 1,3-dicarbonyl compounds are acetylacetone and ethylacetoacetate. The alcoholic liquid containing water and the 1,3-dicarbonyl compound may be used to remove catalyst residues from polymers.