baber/WOPTO huggingface dataset:
Patent GB-590502-A (GB)
Title: Preparation of sulphur for burning
IPC: C01B17/54
Filed: 1944-04-18
Abstract: An oxide, hydroxide, carbonate, bicarbonate or borate of lithium, sodium, potassium, calcium, strontium or barium, having an alkaline character is mixed in powder form with powdered sulphur to improve its burning qualities.  Best results are obtained with 1-2 per cent. by weight of sodium bicarbonate.  The agent should be well dispersed in the sulphur which should preferably pass a 100 mesh B.S. sieve. The Provisional Specification describes also the use of alkaline agents in general.ALSO:A fumigating composition comprises powdered sulphur admixed with a powdered oxide, hydroxide, carbonate, bicarbonate or borate of lithium, sodium, potassium, calcium, strontium or barium, having an alkaline character.  Best results are obtained with 1-2 per cent. by weight of sodium bicarbonate.  The agent should be well dispersed in the sulphur which should preferably pass a 100 mesh B.S. sieve.  The Provisional Specification describes also the use of alkaline agents in general.
Patent GB-284492-A (GB)
Title: Improvements in or relating to lubricators
IPC: B60R17/02
Filed: 1927-03-15
Abstract: 284,492. White, A. E., (Bowen Products Corporation). March 15, 1927. Right to Patent relinquished. Single-acting suction-valveless piston pumps.- A lubricating system has means for varying the pressure in a supply line 2 in which is a control device comprising a chamber divided into two parts 9, 10, the upper part 9 which is of larger diameter than the part 10 containing a loosely fitting piston 12. The latter is urged upwardly by a spring 13 supported in the chamber portion 10, the lower part of which has a non-return, spring-actuated valve 16 controlling the outlet of lubricant from the chamber to the part to be lubricated. At each pressure impulse in the line 2, the piston 12 drives the lubricant below it through the valve 16 and remains in contact with the abutment face 11 until the pressure in the pipe 2 is reduced sufficiently to permit the spring 13 to return the piston to its upper position when lubricant leaks past it to form the next charge. The stroke of the piston 12 may be varied by changing its length or by an adjustable stop 15. The shoulder 11 or the underface of the piston 12 may be ridged to permit of line contact between the parts 11, 12. The line 2 may be supplied by a foot or hand pump as shown in Fig. 1, or bv a pump such as shown in Fig. 10, driven by the machine to be lubricated. A cam 48, Fig. 10, in an oil reservoir 40 is rotated by gearing 57, 58. or by a ratchet device so that it slowly depresses a piston 50 having a stem 49 with a passage 51, so that when the piston 50 is near the bottom of its stroke oil passes from the reservoir 40 to the space above the piston. The latter under the action of a spring 52 then returns suddenly to its upper position causing a charge of oil under pressure To pass through the pressure line 22 to the control device or devices.
Patent GB-394443-A (GB)
Title: Improvements in collapsible gates
IPC: E06B9/06
Filed: 1932-03-11
Abstract: 394,443. Gates. WATT, J. A., 150, Dobbie's Loan, Glasgow. March 11, 1932, No. 7301. [Class 45.] In a collapsable gate of the type comprising vertical pickets each formed of two opposed bars, with mid bars arranged between the pickets, each lattice bar h is pivoted at i to a mid bar f on one side of a picket a and is pivoted to a sleeve slidably mounted on the mid-bar on the other side of the picket. The sleeves j are provided with pins k which take into holes in the lattice bars.
Patent GB-1410262-A (GB)
Title: Field optical systems
IPC: H01J3/02
Filed: 1973-02-14
Abstract: 1410262 Electron guns; ion beam apparatus; ion pumps AMERICAN OPTICAL CORP 14 Feb 1973 [14 Feb 1972] 7346/73 Heading H1D Field emission apparatus comprises field emission tip 21, electrode system 23, 24 producing focusing and accelerating fields and field electrode 22 for extracting charged particles, the field electrode including two spaced apertures (e.g. in electrodes (35), (32) of Fig. 2, not shown), the proximal aperture exposed directly to the unfocused emission from the tip and being large enough to prevent any substantial proportion of the beam striking the proximal face of the field electrode, the distal aperture limiting the beam to the desired diameter. The gun may be in a scanning microscope and may produce negative or positive particles (e.g. electrons or ions). An ionizable gas is introduced from ion production. Electric potentials, aperture sizes, distances and spot sizes are disclosed, for example in relation to tip size. V 1 /V 0  Determines focal distance while impedance Z prevents the extraction voltage rising to the main accelerating voltage. Ve may be controlled independently of V 1  to produce focal length control as well as beam size. Annular shield 20 prevents h.v. discharges and condenses Ti sublimated from coil 19 so constituting a vacuum pump, and in conjunction with inherent ion pumping provides by electrodes 21 and 22, i.e. ionization by primary and secondary particles, attains a 10<SP>-9</SP> to 10<SP>-11</SP> torr vacuum. Coil 19 is on a depending flange which prevents Ti coating the tip, apertures or insulators. Deflection lens 16 synchronized to a scanning system for control of video receiver enables programmed operation. Detection may be by transmitted, secondary, reflected or absorbed electrons, photons, or X-rays. Electrode 23, 24 geometries are discussed, tip 21 is on insulator (26) which may be axially adjustable (e.g. by the mechanism as in patent Specification 1,355,365), extractor electrode (35), (32) has open-side walls permitting ionized particle and contaminant passage. Raised portions about the apertures trap contaminants, and insulator (31) improves h.v. protection. Regions (41a), (41b) are at different vacuum levels and differentially pumped. Open structure shield (33) reduces ion bombardment of tip 21, ions being ultimately trapped on shield 20. Coating the tip with Zr or other high work function material or altering the tip geometry ensures emission from a smaller source. Magnetic and/or mechanical and/or electrostatic trapping may be used as well as sublimation methods to inhibit tip damage.
Patent GB-1516966-A (GB)
Title: Target raising and lowering device for shooting practice
IPC: F41J7/00
Filed: 1977-02-22
Abstract: 1516966 Hinged target devices SAABSCANIA AB 22 Feb 1977 [24 Feb 1976] 07405/77 Heading F3X A target device includes a target board 18 fixed by rods 17 to a shaft 15. The shaft is rotated by a cylinder driven link mechanism itself driven by a remotely controlled motor. The device is carried by runners having straight sections 17 and curved end sections 20. The shaft is so located relative to one end of the device that any object accidentally interposed between the rods and the adjacent curved ends 20 of the runners does not jam but is moved along by the rods.
Patent GB-556722-A (GB)
Title: Improvements in, or relating to turnbuttons for securing cupboard or other doors
IPC: E05B15/00
Filed: 1942-06-02
Abstract: 556,722. Turnbuttons. JONES, H. D. June 2, 1942, No. 7459. [Class 44] A turnbutton fastener for cupboard doors and like uses comprises a straight strip of metal with a pivot-hole off-set transversely with respect to the centre of gravity so that the button hangs in horizontal position. Fig. 1 shows a strip of uniform cross-section with the pivot-hole A offset from the longitudinal centre-line. Alternatively, the strip may be of L, T, wedge-form or other non-uniform cross-section to provide a greater weight of metal near one longitudinal edge. Various suitable cross-sections are illustrated. In all cases an additional pivot-hole may be provided for use if the button is required to hang vertically to overlie the upper edge of the door.
Patent GB-188280-A (GB)
Title: Improvements in or relating to inert cells
IPC: H01M50/40
Filed: 1922-03-14
Abstract: 188,280. Mummery, C. S., and Ever- Ready Co. (Great Britain), Ltd. March 14, 1922. Absorbents.-A dry cell of the inert type is provided with a packing of glass wool C between the carbon dolly A and zinc casing D. The glass wool may be loose or in the form of a sheet which is wrapped round the dolly A and the two slid together into the casing. When the cell is required for use liquid is introduced through the filling opening E, the glass wool packing serving to distribute the liquid throughout the cell.
Patent GB-929245-A (GB)
Title: Fiber-forming graft copolymers of acrylonitrile on n-vinyl-3-morpholinone polymer substrates, their preparation and use
IPC: C08F271/02
Filed: 1961-03-01
Abstract: Film and fibre-forming polymers are made by graft polymerizing acrylonitrile or comonomers containing a predominant proportion of acrylonitrile on to a homo- or co-polymer of an N-vinyl-3-morpholinone monomer (VM) dissolved in an aqueous saline polyacrylonitrile solvent solution, e.g. aqueous zinc chloride. Preferred VM monomers are those of the formula: <FORM:0929245/IV(a)/1> in which X, Y and Z represent hydrogen atoms or alkyl groups.  VM copolymers specified are those with methyl methacrylate, sodium styrene sulphonate, sodium vinyl toluene sulphonate N-vinyl lactams, N-vinyl oxazolidinone, N-vinyl succinimide and vinyl acetate.  Comonomers specified for use with acrylonitrile are allyl alcohol, vinyl acetate, propionate and butyrate, methyl and ethyl acrylates, dimethylaminoethyl acrylate, methacrylamide, methacrylonitrile, vinyl acetic, acrylic, fumaric and itaconic acids, fumaronitrile, ethylene sulphonic, allyl sulphonic, styrene sulphonic and vinyl toluene sulphonic acids and alkali metal salts thereof, vinyl ethylpyridine and butadiene.  As catalysts for the graft polymerization there are specified hydrogen peroxide and azoisobutyronitrile.  The resulting graft polymer solutions may be formed directly into shaped articles, or may be blended with solutions of fibre-forming acrylonitrile polymers and then subjected to a shaping operation.  In either case the products are dyeable with acid, vat, acetate, direct, naphthol and sulphur dyestuffs. Specification 819,049 is referred to.
Patent GB-674173-A (GB)
Title: Improvements in ejector mechanism for heading and like machines
Inventor: BROSCOMB DENNIS GEORGE
IPC: B21J13/14
Filed: 1949-03-19
Abstract: 674,173. Ejectors for forging-machines. G.K.N. GROUP SERVICES, Ltd. March 16, 1950 [March 19, 1949], No. 7529/49. Class 83 (iv). In a heading or like machine in which the work is inserted in a die with its inner end bearing against the end of an ejector pin while its outer end is being operated upon, adjustment of the initial or setting position of the pin to accommodate work of different lengths,.and the corresponding adjustment of the length of travel of the pin are effected by the operation of a single adjusting member acting on the setting and operating members connected by linkages to a power-driven driving member. The ejector pin 16 is normally held in its inner position relatively to a die 20 by a spring 18 which acts between the frame of the machine and a flange 17 of the pin so as to press the flange against the abutting heads 30, 36 of actuating and setting lever arms 28, 34 which in turn bear against a sleeve 22. A fixed pivot 27 carries the bent operating-lever 28, 29 and the setting lever 34, 39. To tha arm 29 of the operating lever is pivoted a link 42 carrying at its end a roll 45 and to the arm 39 of the setting lever is pivoted a link 43 which is also pivoted to an intermediate point 44 of the link 42 so that lever arms 29 and 39 and links 42 and 43 form a parallelogram. Mounted on a fixed pivot 52 is a rocker 53 with an arcuate surface 54 which is in contact with the roll 45 and is concentric with the pivot 27 when the pin is in its inner position. An arm 55 on this rocker carries a roll 57 held in contact with a cam 58 by a spring 60. In operation, the inner position of the pin 16 is adjusted by means of the screwed sleeve 22, such adjustment acting through the linkages to traverse the roller 45 along the surface 54. The ejecting movement of the pin is effected by the cam 58 which moves the rocker 53 to actuate the lever 28, 29 through the roll 45 and link 42, the amount of movement of the link 42 and hence of the pin 16 depending upon the initial position of the roll along the surface 54 as determined by the, setting of the sleeve 22 and lever 34, 39.
Patent GB-1029313-A (GB)
Title: Improvements relating to chromatography
Inventor: POWELL ROBERT HENRY
IPC: G01N30/90
Filed: 1964-02-24
Abstract: 1,029,313. Chromatography apparatus. SHANDON SCIENTIFIC CO. Ltd. Feb. 18, 1965 [Feb.24, 1964], No. 7547/64. Heading B1X. In ascending or descending chromatographic apparatus the liquid solvent is introduced when equilibration has been achieved from a cistern mounted within the tank into a trough into which the "spotted" sheet dips, a timing mechanism mounted outside the tank being operatively connected to the cistern and emptying it when a predetermined period (sufficient for the achievement of equilibration) has elapsed. Fig. 1 shows a tank for ascending chromatography in which the "spotted" sheets are held by rod elements 8 (Fig. 2 not shown) and dip into lower troughs 16 which are fed through tubes 15 with solvent from troughs 12. Each trough 12 supports a cistern by its trunnion 23 (Fig. 3 not shown), and the troughs 12 together with the rod elements 8 are held on shoulder portions 4 formed inside the tank. Each cistern has a solvent outlet 27 and an air outlet 28 (Fig. 3) in the side which is uppermost when the solvent is stationary in the cistern. A member 51 carried by a pivoted arm 48 (Fig. 6 not shown), which is connected to the alarm mechanism 42 and moves when the alarm rings, carries the cisterns by cords 62 passing through anchorage 25-26 (Fig. 3) on the cisterns. Normally the member 51 is in the lowest position, as shown, but when the alarm rings it is caused to rise to its uppermost position, in which the arm 48 is magnetically maintained, the cisterns being turned by this motion through 180 degrees so that solvent then flows into troughs 12. In descending chromatography the troughs 16 are omitted and troughs 12<SP>1</SP>, containing a glass-sheathed metal rod 9 with which the end of the spotted sheet is held in the trough, replaces troughs 12.
Patent GB-274538-A (GB)
Title: Improvements in and relating to the production of active carbon
IPC: C01B31/12
Filed: 1926-03-19
Abstract: 274,538. Bone, K. S. C., and Wilson Bros. Bobbin Co., Ltd. March 19, 1926. Retorts.-Two retorts in series are used in the production of active carbon. Wood is conveyed through the first retort a by means of a pair of intermeshing members c, d and is then similarly passed through the second retort b below which is placed a fuel burner j. Combustion products from the burner, after heating the retort b pass around a jacket m which surrounds the retort a and contains molten lead and finally escape to the stack n. Creosote oils and other volatile products are withdrawn through one or more ducts o.
Patent GB-292666-A (GB)
Title: Improvements in and relating to the rust proofing of iron, steel and other metals
IPC: C23C10/34
Filed: 1927-03-19
Abstract: 292,666. Cole, W. H. March 19, 1927. Coating.-In a process for rust-proofing iron, steel and other metals, the metals are placed in a sealed revolving container with the rust-proofing powder consisting of a mixture of emery, dry copper-zinc precipitate, tin, and aluminium, and heated first to 800‹ C. then at about 500‹ C. and finally at about 350‹ C. The zinc-copper precipitate is prepared by adding zinc dust to copper sulphate solution. The following may be added to the rust-proofing powder: ferrous chloride, finely-powdered cobaltous chloride, nickel sulphate, and antimony trichloride, and in addition or in lieu of these compounds some of the mixture 27 described in Specification 289,906. Sal ammoniac, borax, and naphthalene may also be added to the powder before use.
Patent GB-877080-A (GB)
Title: An attachment for a floor polishing machine
IPC: A47L11/40
Filed: 1960-03-04
Abstract: 877,080. Floor polishing machines. ELEKTROMA G.m.b.H. March 4, 1960 [March 6, 1959], No. 7708/60. Class 138(1). The head 1 of a floor polishing machine is surrounded by a ring 4 in sliding contact with the floor, and inside which flakes of wax or other polishing material are placed. A strip of felt 5 is provided at the lower edge of the ring 4 and this may be pressed into contact with the floor by a resilient rubber ring or springs (not shown).
Patent GB-894600-A (GB)
Title: Improvements in or relating to magnetic sound record sheets
IPC: G11B25/04
Filed: 1959-03-05
Abstract: 894,600. Magnetic records combined with sample displays. TOKYO DENKI KAGUKU KABUSHIKI KAISHA, and HOSHINO, Y. March 5, 1959 [March 8, 1958], No. 7712/59. Class 40 (2). [Also in Group XVII] A magnetic record for use on a machine as described in Specification 850,291 contains magnetic tracks on a portion 4 of one surface,  Fig. 3, of a record sheet. The remainder of the surface and the whole of the opposite surface, Fig. 2, are available for the display of samples, stuck on, in pockets or under transparent " blisters " with or without associated printed matter.
Patent GB-1137581-A (GB)
Title: Fibre-forming polyamides
Inventor: BURROWS HAROLD GEORGE
IPC: C08G69/26
Filed: 1966-02-22
Abstract: 1,137,581. Polyamide production. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 Dec., 1966 [22 Feb., 1966], No. 7717/66. Heading C3R. [Also in Division D1] Polyamides of high M.W. and increased affinity for dyes are produced by interacting equimolar quantities of a diamine A and a dicarboxylic acid or a salt thereof in the presence of 0À1-10 mole per cent of a salt of an aliphatic diamine B and a hydrogen halide. The diamine A may be of formula where m = 2-12, e.g. hexamethylene diamine. The carboxyl groups of the dicarboxylic acid are separated by at least 2 carbon atoms. Acids specified include aliphatic acids, e.g. adipic acid, and iso- and terephthalic acids. The aliphatic diamine B may be one having 2-18 carbon atoms between the amino groups, e.g. hexamethylene diamine. Diamines A and B may be the same. Hydrogen halides specified are HCl, HBr and HI. The salt may contain 1 or 2 moles of hydrogen halide per mole of diamine. It may be added at any stage during the reaction, but preferably at the beginning, or may be prepared in situ from the diamine and an aqueous solution of the hydrogen halide. The reaction mixture may also contain TiO 2  and N,N<SP>1</SP>-bis-(3-aminopropyl). piperazine as a dyeing assistant. The reaction temperature may be 200-400‹ C. The hydrogen halide salt may be washed from the polymer when the latter is in chips or later when it has been made into fibres.
Patent GB-516758-A (GB)
Title: Improved production of magnesium
IPC: C22B26/22
Filed: 1939-03-10
Abstract: 516,758. Magnesium ; calcium carbide. TENNANT, W. J. (Dow Chemical Co.). March 10, 1939, No. 7864. [Class 82 (i)] [Also in Group III] Magnesium is obtained from magnesium oxide or material containing it by mixing the material with carbon and calcium carbide in the proportion of one mole of carbon and at least one mole of calcium carbide per mole of material, and heating the mixture, in absence of air, and preferably under reduced pressure, to a temperature sufficient to liberate the magnesium which is thereupon condensed on a cool metal surface. The remaining mixture of lime and carbon is afterwards heated to a higher temperature whereby.calcium carbide is formed, which is further used in the process. If the starting material contains lime, as in the case of calcined dolomite, the reaction mixture contains a further three moles of carbon for each mole of lime.
Patent GB-830315-A (GB)
Title: Improvements in easily openable cartons
Inventor: HEINE WILLIAM HENRY
IPC: B65D5/54
Filed: 1958-03-11
Abstract: 830,315. Cartons. KELLOGG CO. March 11, 1958, No. 7870/58. Class 18. A tubular carton, with an upper top flap 6 adhesively overlapping a lower top flap 7 so that an area 11 of double thickness is formed is provided along the top flap 6 with a perforated tear line 9 which lies above the edge of the lower top flap 7.
Patent GB-247763-A (GB)
Title: Improvements in and relating to fluid heating apparatus
IPC: F22G1/06
Filed: 1925-03-24
Abstract: 247,763. Robertson, T. E., (Power Specialty Co.). March 24, 1925. Straight-tube superheaters; mounting and supporting superheaters. - A fluid-heating element comprises a tube adapted for exposure on one side to high temperatures and supporting devices extending away from the opposite side of the tube and rigidly connected to it at intervals along its length, the tube being bare between the supports. The tube A, in combination with a furnace wall C, has supports D welded to it adapted to be screwed as by nuts to angle bars E the holes in which may be slot-like to accomodate expansion. Refractory blocks F, arranged between the tubes A and the bars E, may extend beyond the tubes as shown, or may permit the whole of. the tube to be exposed to the heat.
Patent GB-875054-A (GB)
Title: Metallized ceramics
IPC: C04B41/88
Filed: 1960-03-07
Abstract: A ceramic metallizing composition comprises by weight 40% to 70% molybdenum boride, 5% to 30% manganese metal, 5% to 30% cuprous oxide and may also contain up to 15% of manganese dioxide.  The constituents are milled with an organic binder such as cellulose nitrate and acetone, applied to a ceramic surface and then sintered in a reducing atmosphere at 1150 DEG  C. to 1285 DEG  C.ALSO:A ceramic metallising composition comprises by weight 40-70% molybdenum boride, 5-30% manganese metal, 5-30% cuprous oxide and the preferred composition also contains up to 15% of manganese dioxide.  The constituents are milled with an organic binder such as cellulose nitrate and acetone and applied to a ceramic surface by brush, dipping, printing, spraying, silk screening or transfer rolling.  The coated ceramic is sintered at 1150 DEG -1285 DEG C. in are ducing atmosphere and may be plated with Ni, Cu or Ag prior to brazing.
Patent GB-926356-A (GB)
Title: Improvements in or relating to water-cooled diesel engines
IPC: F02B19/00
Filed: 1960-03-07
Abstract: 926,356. Combustion chambers. MOTOREN-WERKE MANNHEIM A.G. Mar. 7, 1960 [March 14, 1959], No. 7977/60. Class 7(3) A precombustion chamber is formed in a block 23 which carries the injector 11 and is formed with a protuberance 4 in which a heater 16 is situated, the block contacting the cylinder head through a cylindrical surface 26. The block 23 is secured to the cylinder head by bolts 3 and a clamping bridge 10 and is provided with a nozzle insert 7 which may be separate or integral therewith.
Patent GB-492303-A (GB)
Title: Improvements in loft ladders and the like
IPC: E04F11/06
Filed: 1937-03-18
Abstract: 492,303. Loft -ladders. LOFT LADDERS, Ltd., and GORHAM, P. H. March 18, 1937, No. 8013. Addition to 392,940. [Class 20 (ii)] A modification of the loft-ladder described in the parent Specification consists of mounting the counterbalancing spring 3 on a rod 2 attached to the ladder, the lower end of the spring bearing on a runner or slider 4 which embraces the rod and is pivotally mounted on the trap-door 8. As the ladder is raised the slider moves along the ladder and the strain on the spring is lessened. Two springs may be arranged one on each side, or a single spring, centrally of the trap-door. The ladder is carried by a radius rod 9 at its upper end and is provided with a sliding or hinged extension 11. A stop 12 is fixed to the ladder to limit its clownward movement.