baber/WOPTO huggingface dataset:
Patent GB-1384055-A (GB)
Title: Phenol derivatives and their use as antioxidants
IPC: C07D239/10
Filed: 1971-04-21
Abstract: 1384055 Phenol derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 13 April 1972 [21 April 1971] 10476/71 Heading C2C [Also in Divisions C3 and C5] Phenols containing two or more hindered o-hydroxyphenyl groups attached through aliphatic linking groups to a saturated heterocyclic ring containing a N-CO-N, N-CS-N or CO-NH-CO group but no other nitrogen atom may be prepared by conventional methods, e.g. a derivative of the desired linking group containing one or more atoms or groups reactive with the 4-position of a hindered phenol and in addition with a cyclic compound containing a N-CO-N, N-CS-N or CO-NH-CO group may be reacted in succession in either order with the cyclic compound and the hindered phenol or the three starting materials may be interacted together. The heterocyclic ring preferably contains 5 or 6 ring atoms. The products may be used as antioxidants.
Patent GB-105426-A (GB)
IPC: B29C48/12
Abstract: 105,426. East, F. W., and East, A. G. April 26, 1916. Extrusion machines. -In a screw extrusion press for making rubber goods, for example solid tyres, in continuous lengths, the mould A comprises a cylindrical casing hollowed at G and formed with die passages D, which are disposed opposite to the threaded portion C' of the screw C. The mould is recessed at A' to receive the end C<3> of the screw, and the thread C<2> terminates short of the mould to provide space E for the material, which may be formed as an annular recess in the mould into which the die passages open. For hollow articles, the ends of the dies are tapered and are fitted with conical wing-plugs H carrying covers H<l>. Steam for heating the mould is circulated through a jacket F and also, or alternatively, through the hollow G.
Patent GB-251287-A (GB)
Title: A device for preventing backfiring in carbureters
IPC: F02M1/00
Filed: 1926-04-22
Abstract: 251,287. Pierre, E. G. April 22, 1925, [Convention date]. No Patent granted (Sealing fee not paid). Spray carburettors.-A device for charge mixing and for preventing damage from backfiring comprises two or more perforated or gauze screens 3, 4 mounted on an axis 2 transverse to the axis of the mixing-chamber and rotated by the flow of mixture. According to the Specification as open to inspection under Sect. 91 (3) (a) the device may be driven by the engine, and the axis 2 of the screens may be oblique to the axis of the mixing- chamber or may be parallel therewith, in which case the screens may be replaced by a perforated helical member having one or more turns or by one or more fans. This subject-matter does not appear in the Specification as accepted.
Patent GB-106916-A (GB)
IPC: F42C13/02
Abstract: 106,916. Bint, G. F. Sept. 15, 1916. Packing projectiles.-Relates to solid plugs which are used to close during transit the screwed mouth of a shell which is adapted to receive the fuse. According to the invention, the plug is provided with a retaining-device comprising resilient arms which engage with the screw threads when the plug is pressed into position. In the form shown in Fig. 1, the retaining-catch consists of a strip 7 of thin sheet metal, the up-turned arms 8 of which lie in grooves 9 in the stem of the plug 2 The strip 7 is, in a modification, replaced by a disk having three radial up-turned arms. The Provisional Specification also describes a modification in which a circumferential spring catch is provided.
Patent GB-129415-A (GB)
Title: Improvements in Spring Mattresses or Beds.
Inventor: MARSHALL JOHN EDMUND
IPC: A47C27/04
Filed: 1918-07-04
Abstract: 129,415. Marshall, J. E., and Rhodes, J. W. July 4, 1918. Mattresses. - A mattress comprises stuffed pads B, C with edge rolls G secured together by lacing to enclose a mattress element composed of springs A, the whole being enclosed in an outer covering D. Reference has been directed by the Comptroller to Specifications 1548/85, 24043/08, and 106,181.
Patent GB-166698-A (GB)
Title: Improvements in or relating to the manufacture of food from fish, with or without the addition of other substances
IPC: A23L17/10
Filed: 1920-04-20
Abstract: 166,698. Spear, W., and Spear, C. O. April 20, 1920. Mincing.-Fish, after being crushed by an apparatus like an ore stamping machine, in which wooden stamps fall into wooden basins is pulped in the apparatus shown. This consists of a casing 12 traversed by a shaft 19 on which are mounted sleeves 23, 30 which can be connected to the shaft 19 by clutches. The sleeves carry screws 24, 34 and beaters 25, 33, and between them is arranged a perforated partition 17 carrying fixed blades. Stationary beaters and knives may be mounted in the casing 12.
Patent GB-251097-A (GB)
Title: An improved stiffener for soft caps
IPC: A42B1/00
Filed: 1925-04-28
Abstract: 251,097. Dawson, H. April 28, 1925. Stiffeners.-A stiffener for a soft cap comprises an arcuate plate a fitted to the head band of the cap and one or more limbs a<4> extending upwardly from the plate and first curving rearwardly and then forwardly. Each limb may be in two parts longitudinally slidable. Preferably the plate fits between the sweat band and the cap, and is perforated for stitches securing it in position. The stiffener may be of bendable metal.
Patent GB-709858-A (GB)
Title: Roasting zinc plant residues
IPC: C22B19/30
Filed: 1952-05-01
Abstract: <PICT:0709858/III/1> The material remaining undissolved when roasted zinc concentrate is leached by conventional processes with liquor containing sulphuric acid ("zinc plant residue," mainly zinc ferrite) is treated with concentrated sulphuric acid and roasted in fluidized suspension, preferably at 660-700 DEG C., by passing air or other oxygen-containing gas upwardly through the bed whilst imparting heat thereto.  The zinc plant residue is treated with preferably strong sulphuric acid before or after being dried, and crushed to a suitable size, or the acid-treated zinc plant residue may be pumped directly into the hot bed.  The sulphuric acid may be replaced by oleum.  The roasting process is preferably carried out in the absence of reducing conditions.  A "nominal holding time" of 1-10 hours has been found suitable at the preferred temperature.  Heat is imparted to the bed through the walls of the reactor or tubes passing through the bed, or by the introduction of solid or liquid fuel into the bed.  In the latter case it may be desirable to pass oxygen or oxygen-enriched air through the bed.  In an embodiment, see Fig. 3, oil is burnt in a combustion chamber 23 surrounding the bed and the hot gases used to preheat the gases entering the bed through conduit 8 and distribution pipes 6, in heat exchanger 9.  Air containing hot combustion products from a separate combustion chamber may also be used. Zinc is recovered from the roasted product by leaching, e.g. with dilute sulphuric acid: it is present mainly as sulphate, with a little oxide and passes into solution whilst iron remains insoluble.  The mixture may be thickened, filtered, the filtrate purified and zinc obtained therefrom by electrolysis.
Patent GB-844534-A (GB)
Title: Improvements in or relating to repeater amplifiers for surface wave transmission
IPC: H01P5/08
Filed: 1957-04-04
Abstract: 844,534. Electric signal transmission systems. HAFNER, T. April 4, 1957 [April 11, 1956], No. 11014/57. Class 40 (4). The casing of a high-frequency amplifier comprises end plates on which are mounted horns for receiving and launching surface waves on incoming and outgoing conductors. As shown in Fig. 1 the horn 5 is mounted on the outer wall 3 and the inner conductor 7 passes through a fibre glass bushing 9<SP>1</SP>. Tensioning of the conductor 7 may be effected by a loop spring 9 connecting the wire 7 with the amplifier input terminal 11 supported in a bushing 13. The tensioning may be made adjustable, by providing the insulation of the conductor with a threaded portion 21 and a keying projection 22 for preventing rotation thereof, the tension being adjusted by the rotation of a member 27 whose internal thread co-operates with that of the member 21. The loop spring may be replaced by a coil spring, Fig. 6 (not shown), which may have its end 54, Fig. 8, threaded to co-operate with a regulating member 52 whose other end co-operates with a threaded portion 53 on the outgoing conductor so that rotation of the member 52 draws the portions 53, 54 together. The horns 35 may be covered with a wave-absorbing substance e.g. loose steel wool packing, or rubber containing particles of carbon, in order to reduce interaction between the outgoing and incoming waves. These coatings may be covered by a water-tight enclosure e.g. tarred paper. In order further to reduce this interaction, the peripheries of the horns may have wires 56, Fig. 5, extending parallel to and surrounding the main conductor 34 the number of wires decreasing with distance from the horn. The wires may be of steel covered with a mixture of rubber and carbon black. Fig. 5 illustrates such an arrangement where the surface wave transmission system is carried on poles which also carry other electrical systems 65 (e.g. power or the more usual type of communication system). The surface wave conductor may be a steel conductor electroplated with copper and coated with polyethylene. The input and output impedances of the amplifier are preferably of the order of 100 ohms. Specification 718,597 is referred to.
Patent GB-1094727-A (GB)
Title: Production of alcohols by catalytic hydrogenation of carboxylic acids
Inventor: ADAM KARL
IPC: B01J27/18
Filed: 1965-03-16
Abstract: Alcohols are prepared from carboxylic acids by catalytic hydrogenation at an elevated temperature in the presence of a cobalt catalyst which contains copper, manganese and/or chromium. Inorganic acids which can form polyacids and/or an alkali metal, alkaline earth metal or earth metal salts thereof, e.g. sulphuric, boric, phosphoric, molybdic, vanadic and tungstic acids may also be present. The catalysts may be supported, e.g. on silicic acid, bauxite, fuller's earth or aluminium oxide, or unsupported.  Examples describe the hydrogenation of propionic, butyric, lauric, oleic, suberic, azelaic, and sebacic acids, decane dicarboxylic acid-(1-12) benzoic, hexahydrobenzoic, phenylacetic, and salicylic acids and a mixture containing succinic glutaric, adipic, e -hydroxycaproic, butyric, valeric and caproic acids obtained as by-product in the catalytic oxidation of cyclohexane with air.
Patent GB-480557-A (GB)
Title: Improvements in or relating to adhesive coated paper cloth and the like
IPC: C09J7/32
Filed: 1937-04-19
Abstract: 480,557. Adhesive-coated paper and fabrics. CREED & CO., Ltd. April 19, 1937, No. 11123. Convention date, April 23, 1936. [Classes 96 and 140] Paper or cloth coated with a water-soluble adhesive, e.g. for telegraph printers, is protected against deleterious absorption of moisture from the air by a layer consisting of a product of starch hydrolysis intermediate between starch and dextrin and incapable, under normal conditions of temperature and humidity, of forming an adhesive bond for paper exceeding the strength of the paper. As a modification, the protective layer may be formed by adding a small proportion, e.g. ¢-1 per cent, of starch to an insoluble type adhesive dextrin. The protective layer may be sprayed or dusted on to the adhesive coating as the material passes through the drying mechanism ; or it may be applied in the form of a solution.
Patent GB-237975-A (GB)
Title: Improvements in timber framed buildings
IPC: E04B2/56
Filed: 1924-05-06
Abstract: 237,975. Love, W. W. May 6, 1924. Walls.-The walls and partitions of a timber framed' building consist of studs of rectangular cross-section fixed diagonally with respect to the edges of slabs and engaging vee-grooves therein, and also, for cavity walls, triangular studs with square fillets on one or more faces and similarly engaging grooves in the slabs. In cavity walls, the outer studs 9 are triangular in section with the longer side parallel with the external face of the wall and with square fillets 11 fixed on the other two sides. The corner posts 10 are set with the longer side inwards. In the inner wall, the studs 7 are square or rectangular and set diagonally. Single walls and partitions are constructed similarly to the inner wall. The slabs are made of concrete or plaster and may be tied together by ties 12.
Patent GB-741104-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: MATHISEN ANDERS
IPC: B05B1/26
Filed: 1953-04-23
Abstract: 741,104. Spray-producers. GRAVINER MANUFACTURING CO., Ltd., MATHISEN, A., and WILKINSON SWORD CO., Ltd. April 23, 1954 [April 23, 1953; July 29, 1953], Nos. 11272/53 and 21000/53. Class 69 (3). A device for location adjacent a liquiddischarge outlet comprises a securing flange 10, Figs. 1 and 2, with slotted spacer strips 11 which support rings 12. The inner diameter of each ring is a little greater than, or substantially equal to, the external diameter of the succeeding ring further from the outlet, and spray is produced by the impingement of liquid on the annular surfaces of the rings facing the outlet. In Fig. 3, the device has an inner stepped part 15a and slots are machined in the walls to provide part annuli 15b, 15c spaced by a web 15d, Fig. 4. A part 15f fits over the end of a discharge pipe 16. The device may be in the form of a conical coil spring 20, Fig. 5, mounted on a base ring 21, and adjacent turns abut one another when liquid is not being discharged. Specifications 643,188, 682,988 and 693,017, [all in Group XXI], are referred to.
Patent GB-591246-A (GB)
Title: Improvements in or relating to vernier gauges
IPC: G01B3/18
Filed: 1945-05-03
Abstract: 591,246. Measures of length. SMITH, J. D. MAIN-, EARWICKER, G. A., and DODD, S. A. May 3, 1945, No. 11300. [Class 106 (ii)] A gauge for measuring the distance between two datum marks comprises two coaxial tubular elements 10, 16. A window 11 with an extension 12 forming steps 17 is cut in the inner tube 10 which has a scale 13 engraved on its side. The outer element 16 is slotted at 22 and engraved to provide the scale 13 with a vernier 23. In use, the scales are set to zero and the article to be measured is inserted in the inner tube, being gripped by circlips 15 and is adjusted axially until one datum mark just disappears under the straight edge of an indicator, plate 26. The outer element 16 is then moved over the inner element 10 until the second datum mark just disappears under the edge of the indicator plate.
Patent GB-1460631-A (GB)
Title: Method and apparatus for immunoassay with regeneration of immunadsorbent
IPC: G01N33/543
Filed: 1974-03-14
Abstract: 1460631 Immunoassay utilizing immobilized antibody SUMMA CORP 14 March 1974  [19 March 1973 ] 11473/74 Heading G1B A method of assay of an antigen (or correspondingly antibody) comprises flowing a solution containing the antigen, optionally mixed with labelled antigen, into and out of contact with an immunoadsorbent comprising an immobilized antibody and assaying antigen not bound to the immobilized antibody, antigen first bound to the immobilized antibody and then released on regeneration of the antibody, or both, the immunoadsorbent being regenerated by contacting it with a solvent capable of breaking the bond between antigen and antibody to free the antigen, for example with methyl, ethyl or isopropyl alcohol, or dimethyl formamide. The antibody may be immobilized by covalently coupling it to beads of glass or water-insoluble polymer, the beads being supported on a screen in a tube through which the solution containing antigen is flowed. Alternatively a mass of antibody may be encapsulated in a semi-permeable membrane and a quantity of the capsules held in position in a column. In the radioimmunoassay of successive samples from sampler 10 in the apparatus shown, the immobilized antibody is located in chamber 16. Sample from sample loop 23 is flushed through lines 37, 36 into chamber 16 using buffer from container 11, scintillator solution from container 13 is mixed with the sample flow in chamber 17 and the mixed solutions are passed through detector system 18, 19. The bound antigen is removed from the immobilized antibody by rinsing it with a "regenerator solvent" from container 12. Operation of the pumps and valves is under control of timer 41. Examples relate to determination of testosterone and of estrogen using antibody covalently bounded to sephadex (R.T.M.) beads, the regeneration solvent then comprising the buffer solution containing 30% of 95% ethylalcohol. There is reference to determination of polypeptides, thyroid hormones and some viruses.
Patent GB-698210-A (GB)
Title: Improvements in or relating to the manufacture of electrically resistive material
IPC: H05B3/28
Filed: 1951-05-16
Abstract: 698,210. Electric resistances. GENERAL ELECTRIC CO., Ltd., BIRCH, R. G., and CAMPBELL, B. D. May 16, 1952 [May 16, 1951], No. 11505/51. Class 37. A sheet of polythene or other thermoplastic material 3 is placed between two sheets of cardboard 1, 2 carrying carbon deposits on their inner faces, and the whole assembly is subjected to heat and pressure from dies 5, 6 to bond it together. The assembly is then cut to shape and coated with a cold-setting phenol aldehyde resin varnish. Electrodes may be provided by strips of foil held in contact with the carbon surface by a clear lacquer which decomposes to carbon during the heating.
Patent GB-197517-A (GB)
Title: Improvements in ball joints
IPC: B60G7/00
Filed: 1922-04-25
Abstract: 197,517. Austin, Sir H. April 25, 1922. Torque-rods. - The rear end of a front axle torque rod D is connected to the frame member A by a ball- and-socket joint. Each leg of the torque rod is secured to a cup-shaped member E, through which and the ball C a bolt F is passed. The clearance holes for the bolt are sufficient to give the movable members a limited movement in any direction, the rear parts of the blocks E being also cut away for this purpose. The members D, E may be integral members.
Patent GB-137730-A (GB)
Title: An improved reinforced concrete fireplace lintel
IPC: F24B1/191
Filed: 1919-05-08
Abstract: 137,730. Marques, C. May 8, 1919. Outlets to chimneys.-A combined lintel and flue mouth consists of a lintel or slab a of reinforced concrete having at the rear thereof and integral therewith a hollow block b, the sides and gathers of which converge to form the flue opening d. The rear wall e of the block b may be integral therewith or separate therefrom, and may be made of double thickness to receive the gathers of a second block in the case of back-toback fire-places. Fig. 2 shows a modified form of block for kitchen ranges, the front wall g of the block also converging upwardly. A wedgeshaped recess h is provided to reduce weight.
Patent GB-763107-A (GB)
Title: Improvements in fluid filters
Inventor: BUCKMAN KENNETH ERNEST
IPC: B01D25/00
Filed: 1954-04-22
Abstract: 763,107. Filters for liquids. GENERAL MOTORS, Ltd. March 4, 1955 [April 22, 1954], No. 11599 /54. Class 46. In making a filter unit from a continuous strip of material divided by fold lines into sections which are folded on to one another in zig-zag manner, each section being centrally apertured, the sections are taken in pairs and the two sections of a pair sealed together at the central apertures, each section of each pair being spaced from the other section of the pair at its outer periphery but sealed to the adjacent section of the adjacent pair of sections at their free external peripheries. A strip 1 is scored alternately with single and double fold lines 2, 3 to form sections 4, folded zig-zag fashion to superimpose central apertures 5, and clamping rings 9, Fig. 2, are inserted through the apertures of the pairs of sections formed by folding about the double lines 3, the clamping rings being flanged over to seal the sections, with the interposition of spacing washers 10 between the sections. The spacing is supported by abutting circles of projections 8 one circle on each section, the liquid flowing from outside between the projections of the section. Intersecting radial and circular grooves 7, 6 provide channels for liquid which has passed through the filter material to flow to channels 12 formed between the clamping rings 9 and leading to the central apertures 5. The strip may be double and be folded longitudinally before the zig-zag folding. Other sealing means than the clamping rings 9 are described and the free outer edges of adjacent pairs of sections are also sealed in any desired manner. Two strips may be interleaved as shown in Fig. 4. The central apertures are then sealed by ferrules 18, Fig. 8.
Patent GB-675545-A (GB)
Title: Improvements in or relating to the preparation of melamine and substituted melamines
IPC: C07D251/56
Filed: 1950-05-10
Abstract: Melamine and substituted melamines are manufactured by reacting ammonia and carbon monoxide, or substances yielding ammonia and carbon monoxide (e.g. formamide], or a primary or secondary amine and carbon monoxide, at a temperature in the range 230-450 DEG  C. (preferably 295-390 DEG  C.) under a pressure of at least 100 (preferably 1000-5000) pounds per square inch, in the presence of one or more of the following catalysts in anhydrous condition: (a) heat stable metals and metal oxides free from catalytic iron and catalytic iron oxides; (b) metal fluoborates, molybdates, vanadates and fluosilicates; (c) carbides and activated carbon; (d) water-gas shift catalysts free from catalytic iron and catalytic iron oxides.  The reaction, in which ammonia is preferaby employed in a molar excess, may be effected batchwise, or preferably continuously by passing the reactants over the catalyst, recovering melamine by leaching the reaction mass with water, and separating ammonia and carbon monoxide from the effluent gases for recycling.  If the carbon monoxide be obtained by incomplete combustion of carbonaceous material in air, the effluent gases will contain nitrogen as well as hydrogen which is always present therein, and these gases may be passed to an ammonia synthesis plant to provide ammonia for the main process. Examples describe the interaction of ammonia and carbon monoxide in the presence of the following catalysts: (1) finely divided nickel deposited on an equal weight of silica; (2) tungsten trioxide; (3) 10 per cent of manganese dioxide on alumina; (4) 10 per cent of nickel fluoborate on alumina (the foregoing all in batch processes); (5) 5 per cent of platinum on charcoal (in a continuous process).  In a further example (6), part of the ammonia in (1) is replaced by methylamine and a somewhat higher temperature is used, yielding a mixture of mono-, di- and trimethylmelamine and some melamine.  A list of alternative catalysts is given.
Patent GB-925655-A (GB)
Title: Improvements in rotary electric machines
Inventor: CHARLIN RENE GEORGES
IPC: H02K1/18
Filed: 1961-03-30
Abstract: 925,655. Core constructions; casings. SOCOME S.A. March 30, 1961, No. 11675/61. Class 35. A stator frame comprises a cylindrical cage formed by longitudinally arranged bars 1, the ends of which are embedded in cast aluminium alloy annular end members 2, and which are enclosed by a tubular sheet iron sleeve 3, the inner surface of the bars 1 and members 2 being coaxially machined to receive one or more stators and bearing supporting covers. The sheet iron sleeve 3 is welded to the bars 1. Angular rotation of the stators is prevented by a key carried by one of the bars (Figs. 4 and 5, not shown). The stators are held in an axial direction against a shoulder on the inner surface of the bars by longitudinally arranged fingers secured to one of the annular members (Fig. 3, not shown). The annular members are adapted to receive end covers (Fig. 6, not shown) on which are mounted the bearings supporting the machine shaft.