baber/WOPTO huggingface dataset:
Patent GB-803083-A (GB)
Title: Improved knitted fabric and method of and apparatus for the production thereof
Inventor: LINDNER HUGO
IPC: D04B11/20
Filed: 1955-01-28
Abstract: 803,083. Knitting. VEB VEREINIGTE STRUMPFWERKE ESDA. Jan. 28, 1955, No. 2635/55. Class 74 (2). A knitted fabric having stitches of different lengths is composed of one or several synthetic threads capable of retaining permanently any stretch imparted thereto, the thread or threads being so stretched in thus forming simultaneously all the loops of a course that the crosssectional area of the thread or threads in the stitches is substantially inversely proportional to the length of the stitches. Groups of longer and shorter stitches may alternate, both walewise and coursewise, to form a chequerboard pattern. The shorter stitches may be normal or less than normal length. Courses of longer stitches 1 and courses of shorter stitches 2 may, say, alternate; or a long stitch course may be succeeded by a course of stitches of normal length, in turn succeeded by a course of stitches of less than normal length. Patterning may be enhanced by dyeing the fabric, the short and long stitches taking the dye differently. The fabric may be produced by the aid of a needle-supporting bar 5 having the edge facing the needles stepped, those needles 3 opposite the recesses being able to yield more, as the sinkers are advanced, than those opposite the projecting portions and thus cause shorter loops to be sunk. To form the chequerboard pattern, the bar may be shogged longitudinally, or two bars may be used. Jaquard control may be employed. Alternatively, the different lengths of stitch may be obtained by different extents of sinker movement; or use can be made of rods behind the frame needles. The stretching of the thread may be effected during the downward movement of the needles through the upper edges of sinker nibs or through the knocking over bits.
Patent GB-633713-A (GB)
Title: Manufacture of copper phthalocyanine dyestuffs
IPC: C09B47/06
Filed: 1947-01-28
Abstract: Copper phthalocyanines are prepared by reacting together at 135 DEG to 300 DEG  C. biuret, diammonium phthalate, or one of its deammonation or dehydration products or a nuclear substitution product thereof, and a copper compound capable of yielding a stable metal phthalocyanine.  A catalyst comprising a compound of a metal or metalloid of Group V or VI of the periodic table or of boron, aluminium, or phosphorus may be present. alternatives to diammonium phthalate are monoammonium phthalate, phthalic acid, monoammonium o-carbamyl benzoate, phthalic acid monoamide, phthalic anhydride, phthaldiamide, monoammonium o-cyanobenzoate, phthalimide, o-cyanobenzoic acid, o-cyanobenzamide, phthalimimide.  Substitution products of these bodies referred to are the dimethyl, chloro, nitro, ethoxy, phenoxy, acetamino, phenyl, and benzenesulphonamido.  In examples: (1) biuret, phthalic anhydride, and ammonium molybdate are heated in presence of cupric chloride, cupric bromide, cupric sulphate, or cupric acetate; (2) biuret, ammonium molybdate, and cupric sulphate are heated with phthalic acid, phthalimide, or phthaldiamide; (3) diammonium phthalate is reacted with cupric chloride, biuret, and ammonium molybdate; (4) 4-nitrophthalimide is reacted with biuret, ammonium molybdate, and cupric chloride.  Other catalysts specified are sodium molybdate, molybdic acid, silico-molybdic acid, ammonium metavanadate, arsen, ious oxide, antimony trioxide, boric acid aluminium oxide, bismuth trioxide, diammonium phosphate, tungstic acid, ammonium chromate, and other substances specified for comparison are zinc oxide, mercuric oxide, sodium carbonate, lead oxide, sodium stannate, lead titanate, ammonium persulphate, selenium oxide, potassium iodate, potassium permanganate, fertic oxide.  Specifications 464,126 and 476,243 are referred to.
Patent GB-124191-A (GB)
Title: Improvements in the Production of Pure Concentrated Nitric Acid and Tetroxide of Nitrogen.
IPC: C01B21/46
Filed: 1919-02-04
Abstract: 124,191. Norsk Hydro - Elektrisk Kvµlstofaktieselskab. March 13, 1918. [Convention date]. Nitric acid; nitrogen peroxide.-Nitrogen peroxide is removed from nitric acid and recovered by treating with the vapour of nitric acid. The nitric acid to be treated is fed in at the top of a column D<1>, and is met by the vapour of nitric acid which has escaped condensation in a condenser K'. The acid from the bottom of the column D<1> flows into a dephlegmator D<2> and thence to a boiler A from which acid of 68-70 per cent., is withdrawn at K<4>. Pure nitric acid vapour escapes from the top of the column D<2> to the condenser K<2>, that which is condensed being withdrawn at K<3> as pure acid. The nitrogen peroxide expelled in the column D' is condensed in a condenser K<1>.
Patent GB-951996-A (GB)
Title: Blast cleaning machines
IPC: B24C3/20
Filed: 1962-01-24
Abstract: 951,996. Blasting. W. M. ODDIE. Jan. 21, 1963 [Jan. 24, 1962], No. 2739/62. Heading B3D. A blast cleaning machine, for cleaning and preparing foundry castings, forgings and corroded, painted or other articles, has a powerdriven work-holding rotary table located in the blast chamber thereof, the chamber being provided with doors, shutters or closure members adapted to be positioned and operated in such a manner that the table may be either wholly or partially enclosed within the chamber for the machine to operate either intermittently or continuously as desired. A perforated table 1 is housed in a chamber formed by a wall 2 having a peripheral gap, and a preferably counterbalanced roof having a hinged or slidable forward part 3. Pivoted to the wall 2 at each side of the gap are doors 5, 6 whose upper edges lie adjacent to the underside of the roof and whose lower edges terminate at predetermined distances from the surface of the table 1, the spaces between the lower edges and table surface being filled by dependent flexible curtains, e.g. of rubber. Also pivoted to the wall 2 at each side of the gap is a door 7 comprising solid panels whose upper edges terminate near the lower edges of the doors 5, 6 and whose lower edges lie adjacent the table 1. For continuous operation, Fig. 2, the doors 5, 6 are closed inwardly, the doors 7 remaining open. Workpieces continuously supplied to the exposed segment of the table are carried through the blast chamber. For intermittent operation, Fig. 3, all the doors and the part 3 of the roof are opened. After loading of the table, e.g. by a crane, the doors 5, 7 are moved to positions to cover the gap in the wall 2 and the part 3 of the roof is closed. The interior of the blast chamber may be rubber lined.
Patent GB-749330-A (GB)
Title: Improvements in and relating to diaphragm valves
IPC: F16K7/12
Filed: 1954-01-29
Abstract: 749,330. Diaphragm valves. SAUNDERS VALVE CO., Ltd. Jan. 29, 1954 [Jan. 29, 1953], No. 2785/54. Class 135. A facing for the diaphragm of a diaphragm valve consists of a thin layer of flexible material more inert than that of which the diaphragm is made, the facing being of a shape to fit against the diaphragm in the free condition of the latter and of a size to be clamped round the margin simultaneously with the diaphragm so that a vacuum seal is formed between the facing and the diaphragm when the two are clamped in position. As shown, a diaphragm 1 of rubber or similar elastomer with a fabric reinforcement 2 has a moulded-in screw stud 3 for attachment of the usual actuator and a flat margin 4 for clamping with the facing between the valve body and bonnet. The facing has a flat margin 6 and a centrally domed portion 5. The facing is conveniently of a fully-substituted halogenated hydrocarbon such as tetrafluoroethylene, or monochlorotrifluoroethylene. A layer of a plastic heat-resisting substance such as silicone grease is provided between the facing and the diaphragm. Additional sealing ribs or the like may be provided on the diaphragm or the facing or both. In a modification, the diaphragm has a marginal rib which abuts-the edge of the facing. Specifications 516,526, 585,607 and 696,545 are referred to.
Patent GB-592953-A (GB)
Title: Improvements in or relating to photographic enlarging apparatus
IPC: G03B27/32
Filed: 1945-02-05
Abstract: 592,953. Photographic enlarging apparatus. KIESCHKE, W. Feb. 5, 1945, No. 2796. [Class 98 (i)] The apparatus comprises a condenser assembly carried by a tubular holder including a lens having a plane surface projecting from one end of the holder, the holder being loosely guided so as to be able to tilt slightly with respect to a film supporting platform disposed parallel to the plane surface of the lens, and also movable towards and away from the platform by the aid of a ring encircling the holder and having trunnions guided to be movable in a direction substantially perpendicular to the platform in order to press the film on the platform. As shown, the condenser consists of plano-convex lenses 65 and 10 in a tubular holder 11, lens 10 being carried by and projecting from the lower end of the holder 11 which is slidable with a loose fit in a housing 12 secured at 34 to a bracket 35 fitting a squared head 36 of a supporting arm 37. On to the holder 11 a collar 29 is fixed and forms at its lower edge a shoulder 28, below which is a ring 27 loosely encircling said holder. Between ring 27 and a collar 31 fixed on the slotted lower part of holder 11 is a spring 30. Trunnions 25, secured at 26 to the ring 27 pass through vertical slots 24 in the housing 12 and engage slots 23 in a forked lever 13, pivoted at 14 to the housing 12 and provided with a handle 19 enclosing a spring catch 20 co-operating with recesses 21 in a strip 22 on the housing 12. Thus, as the handle 19 is raised or lowered, the holder 11 is moved up or down a distance depending on the length of slot 24. The bracket 35 carries also a housing 41 into which fits loosely a tube 42 in which is screwed a conical tube 48 carrying an objective mount 43, said support having 3-start screw grooves 44, in each of which fits a slide 45 pivoted on the housing 41 so that on rotation of a knurled rim 46 the objective mount is displaced for focusing. The diaphragm-aperture of the mount is controlled by rotating a ring 56 on sleeve 52 screwing into the tube 42 and carrying a bracket 51 on which is pivoted at 50 an arm 49 engaging a notch 53 in a ring 54, which fits tightly on the aperture control ring 55. A flange 58 with aperture 59, at the top of the housing 41, forms the platform bearing the film 60, carried by a holder 61, towards and away from which the condenser holder 11 is moved. Specifications 583,398 and 604,133 are referred to.
Patent GB-1415171-A (GB)
Title: Fluid control valves
IPC: F16K5/12
Filed: 1972-01-20
Abstract: 1415171 Valves R W WINTER 17 Jan 1973 [20 June 1972] 2816/72 Heading F2V In a rotary plug valve flow through an orifice 12 is controlled by the helical end-face of a parthollow conical plug. The orifice may be circular, rectangular, trapezoidal, triangular or any other shape which, on the rotation of the plug, is reduced in length (circumferential) as well as width (axial). The plug is made of resilient plastics material and a tight fit in the casing is achieved by providing an axial groove 30, the edges of which can move together when the plug is inserted in the casing. The plug is retained in the casing has a pin 31 co-acting with a groove 33. 0-rings 34 seal the plug to the casing. The plug, which is rotated by a handle 26, is provided with an abutment 28 co-operating with an abutment 29 on the casing to stop further rotation at the position corresponding to maximum and minimum flow.
Patent GB-563691-A (GB)
Title: Improvements relating to phenazinium salts and their use in photographic emulsions and developers
IPC: G03C5/32
Filed: 1943-02-22
Abstract: Azine dyes, which are 1 : 3-diamino-N-alkyl (or substituted alkyl) phenazinium salts, and are suitable for use as desensitizers in photographic silver salt emulsions and in photographic developers, are obtained by reducing the corresponding dinitro-N-alkyl (or substituted alkyl) 5 : 10-dihydrophenazines in presence of an acid. Such reduction may be effected with a reducing metal salt of the acid present. Specified dinitro compounds used as starting materials are the 5-methyl-, 5-ethyl-, 5-benzyl-and 5 - b  - hydroxyethyl - 1 : 3 - dinitro - 5 : 10-dihydrophenazines.  In examples, (1) to (4), 5-methyl-, 5-ethyl-, 5-b -hydroxyethyl- and 5-benzyl - 1 : 3 - dinitro - 5 : 10 - dihydrophenazines respectively are heated with stannous chloride and hydrochloric acid in alcohol under reflux to obtain the correspondingly 5-substituted 1 : 3-diamino-phenazinium chlorides.  In examples (5) and (6), 5 - methyl - 1 : 3 - dinitro - 5 : 10 - dihydrophenazine is heated with (5) iron powder, (6) tin, and hydrochloric acid in alcohol under reflux to obtain 5-methyl-1 : 3-diamino-5 : 10-dihydrophenazinium chloride.  5 - Alkyl (or substituted alkyl) - 1 : 3 - dinitro - 5 : 10-dihydrophenazines are obtained by heating the corresponding N-alkyl (or substituted alkyl)-o-picrylaminoaniline with sodium hydroxide in methyl alcohol under reflux.  N-alkyl (or substituted alkyl)-o-picrylaminoanilines are obtained by condensation of picryl chloride with the corresponding o-amino-N-alkyl-aniline, obtained by condensation of o-nitrochlorobenzene with the corresponding alkylamine and reduction of the nitro group with sodium hydrosulphite.
Patent GB-360284-A (GB)
Title: Improvements relating to suction boxes for paper making machines
IPC: D21F1/52
Filed: 1931-01-29
Abstract: 360,284. Suction boxes for papermaking machines. NORTON & CO., Ltd., SIR J. F., Adelphi Iron Works, Salford, Manchester.- (Rice, Barton, & Fales, Inc. ; Worchester, Massachusetts, U.S.A.) Jan. 29, 1931, No. 2898. [Class 96.] A suction box cover for a papermaking machine is made of wood impregnated with lubricant such as tallow, oil, or paraffin to avoid swelling &c. in use and to reduce friction, wear, &c. The cover is formed of perforated blocks C preferably of maple wood which has been immersed in molten tallow under pressure, each block having dove-tailed slots to fit tenons B in the side-piece:! A of the box. The perforations are preferably out of alignment with the line of travel of the apron or felt.
Patent GB-908377-A (GB)
Title: Improvements in or relating to a leg prosthesis apparatus
Inventor: ABADIE CHARLES
IPC: A61F2/78
Filed: 1961-01-25
Abstract: 908,377. Artificial limbs. FRANCAIS, ETAT. Jan. 25, 1961, No. 2924/61. Class 81 (2). A leg prosthesis has a flange at the top of a longitudinal limb member for co-operation with the bottom of the stump socket and provision is made for inserting shims between the two to adjust their relative positions. The leg described comprises adjustable telescopic shin and thigh members 10, 11, the upper one having a flange 7 which is attached to the base 8 of the socket member by bolts 14. Shims or washers may be inserted between the parts 7, 8 to adjust the relative settings of the socket and member 11. The lower end of the shin member 1 is located in a rubber block 3 which is clamped to the foot by a flange 5 and, again, shims may be placed between the flange and foot member 15 to adjust their relative angularity. The shin supports a fixed plate 13 simulating a knee cap and the whole limb is enclosed in shaped synthetic foam material.
Patent GB-1058654-A (GB)
Title: Improvements in or relating to the roofing of buildings
Inventor: SOUTHWELL JOHN STANLEY
IPC: E04D3/35
Filed: 1965-01-22
Abstract: 1,058,654. Laminates. NEVILL LONG & CO. (CONTRACTORS) Ltd. Oct. 25, 1965 [Jan. 22, 1965], No. 2940/65. Heading B5N. [Also in Division E1] A laminated panel comprises extruded expanded polystyrene 12 sandwiched between and adhered by a contact adhesive to two asbestos cement cellulose sheets 13, 14 of which 13 is faced with a sheet 15 of butyl rubber of polyisobutylene secured by bonding along spaced narrow bands. The panel edges are sealed by tapes 16 of polyvinyl chloride. The panels may be reinforced by battens secured to the sheet 14.
Patent GB-776261-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B3/60
Filed: 1955-02-01
Abstract: 776.261. Electrode furnaces. NORSK HYDRO-ELEKTRISK KVAELSTOFAKTIESELSKAT. Feb. 1, 1955 [Feb. 2, 1954], No. 2999/55. Class 39(3) In a vertical shaft furnace for use in endothermic reduction processes for the production of metal especially sponge iron in which D.C. or single phase A.C. is passed through the furnace charge and reduced metal in a central part of the furnace between an upper annular electrode 2 and a lower electrode 3, the upper cross-section of the furnace is expanded relatively to the lower part, and the upper annuiar electrode 2 is placed on a shelf formed between the upper and lower parts of the furnace so that it lies close to the furnace wall while the inner part of the shelf remains free. The electrodes are of iron and are internally cooled by air or water. 'The lower electrode 3 is an open slightly domed grid through which sponge iron passes to a lower cooling zone and is supported by inner projections on the furnace wall. A similar grid-like electrode 4 may be supported above the annular electrode and is coupled to the electrode 3 through a voltage regulator 7. Hydrogen preferably with carbon monoxide is fed at a predetermined temperature e.g. 900‹C. into the furnace through an annular channel 5 immediately below the annular electrode 2, is removed at the top, cooled, freed from water and carbon dioxide and introduced into the bottom of the furnace. The charge may comprise a mixture of iron are  and sponge iron. When the furnace exceeds 2-3 metres in diameter, a central fireproof column 12 has projections which support the electrodes 3, 4 centrally and also support a small central annular electrode 8 at the level of and connected to the electrode 2. Specification 776.260 [Group II] is referred to
Patent GB-1021390-A (GB)
Title: New derivatives of 16ª-ethynyl-19-nor-androst-1,3,5(10)-triene, pharmaceutical compositions thereof and processes for their preparation
IPC: C07J75/00
Filed: 1965-01-22
Abstract: The invention comprises 16a -ethynyl-19-norandrost-1,3,5(10)-triene derivatives of the general formula <FORM:1021390/C2/1> wherein R1 represents H, alkyl (1-7 carbons) or carboxylic acyl (1-8 carbons), and R2 represents H or carboxylic acyl (1-8 carbons) and a process for the preparation thereof in which 3 - hydroxy - 19 - nor - androst - 1,3,5(10)-triene-16-one is reacted with an ethynylating agent to form the corresponding 16b -hydroxy-16a -ethynyl derivative and if desired reacting the latter with an alkylating agent e.g. diazoalkane or alkyl sulphate, to give the corresponding 3-alkoxy derivative. Acylation may be effected of the 16-hydroxy group.  As ethynylating agent acetylene in the presence of alkali metal may be used. Pharmaceutical compositions containing the above compounds and having hypocholesterolaemiant activity are administered orally in tablets, pills, capsules, cachets, powders, syrups, or elixirs, by injection in sterile solution or suspension, or rectally as a suppository.
Patent GB-675238-A (GB)
Title: Improvements in the production of iron in blast furnaces
IPC: C21B5/00
Filed: 1950-02-06
Abstract: 675,238. Reducing iron ores. KOPPERS CO., Inc. Feb. 6, 1950 [Feb. 5, 1949], No. 3024/50. Class 72 [Also in Group XII] In a blast furnace process for the manufacture of iron in which a pulverized fuel is used, a mixture of oxygen and the pulverized fuel is made outside the furnace at a low, i.e. normal, temperature and introduced into the furnace in such a manner that combustion is substantially completed before the mixture reaches the charge. As shown, finely divided fuel from a bin 13 is mixed with oxygen in a mixer 15 and the mixture conveyed to a conical tuyere 12 in an enlarged portion of a low shaft blast furnace. Combustion is completed within the cone and the products of combustionmainly carbon monoxide-react with the charge of ore and lumpy fuel. The tuyere brick 10 may be of carbon and may be protected from the combustion mixture by passing carbon monoxide or carbon dioxide along the inside surfaces of the brick.
Patent GB-367147-A (GB)
Title: Improvements relating to electrical condensers
IPC: H01G4/228
Filed: 1931-01-30
Abstract: 367,147. Condensers. BURCH, F. P., Park House, Atkinson Road, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 30, 1931, No. 3088. [Class 38 (ii).] Two electrical circuits are coupled substan. tially entirely capacitatively through a condenser 1, 2, 3, each plate of which has a terminal at both ends and is connected to one circuit by means of one terminal as at a and to the other circuit by the other terminal as at b, the circuits and the terminals being so disposed or so screened that the mutual inductance of the circuits is negligibly small.
Patent GB-884140-A (GB)
Title: Improvements in hand containers for liquids, creams and powders
Inventor: LINCOLN ERIC
IPC: A45D40/00
Filed: 1960-01-28
Abstract: 884,140. Portable containers. LINCOLN HAIR PRODUCTS Ltd. Oct. 26, 1960 [Jan. 28, 1960], No. 3088/60. Class 66. A compartmented container for liquids, creams or powders comprises separate containers A and B which may be a push fit in a cylindrical sleeve 4, or, alternatively, may be joined by screwing together. Discharge nozzles 7 are provided. The containers may be squeezable and of a plastics material, e.g. polyethylene, and the sleeve 4 of a rigid plastics or cardboard.
Patent GB-538885-A (GB)
Title: Improvements in or relating to terminal bushing insulators
IPC: H01B17/30
Filed: 1940-02-19
Abstract: 538,885. Insulators. BUSHING CO., Ltd., and WINDER, H. E. Feb. 19, 1940, No. 3113. [Class 36] A bushing insulator having a shell A of porcelain, glass, or other vitreous insulation, is secured to a metal flange D by means of a tapered outer surface B and a packing G of wood, asbestos, or laminated fabric bonded with synthetic resin, secured preferably with the interposition of a washer H, by the shoulder E of a clamping ring E adapted to' pass over the tapered end. The washer and packing may comprise two semi-circular halves, or the packing may be formed on the taper in a plastic or semi-plastic state and allowed or caused to set. An oil-tight joint between the insulator and flange is effected by a rubber, synthetic rubber, or cork washer C, and fibrous packing, putty, bituminous compound, or red lead fillings J, J<1> are provided.