baber/WOPTO huggingface dataset:
Patent GB-749370-A (GB)
Title: Improvements in or relating to sealed components
Inventor: DAVIES BEAUMONT JOHN
IPC: H01F27/02
Filed: 1953-02-20
Abstract: 749,370. Transformers and inductors. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 18, 1954 [Feb. 20, 1953], No. 4806/53. Class 38 (2). [Also in Group XL (c)] An electrical component such as an inductor 1 is protected by embedding it in an insulating casing which comprises a cushioning member 4, the casing being made by the method which consists in heating the component to a temperature of about 120‹ C., embedding the component or part thereof in a polyvinyl chloride paste capable of foaming when heated, heating the coated component in a mould shaped to contain the foaming polyvinyl chloride around the component, removing the coated component from the mould and casting a mineral filled polyester resin body 5 around the coated component to completely embed it therein. The expanded polyvinyl chloride is produced from a paste consisting of a dispersion of polyvinyl chloride in a plasticizer to which is added a compound which liberates a gas, e.g. nitrogen, at a temperature in the region of 100‹ C. The Specification contains examples of compounds releasing nitrogen under these conditions, such compounds sometimes being called " blowing agents." An example is also given of the composition of a suitable paste.
Patent GB-262306-A (GB)
Title: Improvements in and relating to the manufacture of silicic acid gels
IPC: C01B33/154
Filed: 1926-02-19
Abstract: 262,306. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Feb. 19, 1926. Silica.-Silicic acid jelly, precipitated from an acid solution, is treated with a dilute solution of an alkaline matorial, such as sodium carbonate, hydrate or silicate, alkaline salts, ammonia, or organic bases. It is thus rendered suitable for the treatment of organic liquids. The jelly may be washed and partly dehydrated by pressure or drying before or after the treatment with the alkaline solution, but when the partial drying is effected before the treatment with alkaline solution it must not be so extensive as to produce a solid pulverizable gel. It is finally washed and dried in the usual manner. The silica jelly may be produced from water-glass and an acid or from siliceous slag as described in Specification 221,487.
Patent GB-496352-A (GB)
Title: Manufacture of tetrachlorethylene
IPC: C07C17/02
Filed: 1938-02-17
Abstract: Tetrachlorethylene is produced by passing over a non-metallic inorganic catalyst at 300-400 DEG  C. a mixture of acetylene, chlorine and an inert gas.  The catalyst used may be broken glass or porcelain or porous substances such as bone charcoal, wood charcoal or silica gel which may contain a substance known to promote the addition of chlorine and the splitting-off of hydrogen chloride such as the chloride of a divalent metal, e.g. cupric chloride.  The ratio of acetylene to chlorine is preferably about 1 : 3, and a part of the hydrogen chloride contained in the reaction product is added to the reagents as diluent.  The diluent may be 3-8 times the volume of the reagents.  In examples the reaction is effected in the presence of nitrogen and hydrogen chloride respectively as diluents, the catalysts being active carbon and active carbon impregnated with barium chloride respectively.
Patent GB-231989-A (GB)
Title: Improvements relating to heating and cooking stoves
IPC: F24B1/182
Filed: 1924-02-27
Abstract: 231,989. Hartley & Sudden, Ltd., Fox, S., and Culpan, S. Feb. 27, 1924. Grates.-A grate for a heating and cooking stove, of the type which may be raised and lowered by means of a lever pivoted to it and to the stove front, is formed with two lugs a<1> to which the lever is connected, and between which is a bearing-surface with which, in the raised position of the grate, the end of the lever makes contact and thus retains the grate horizontal. A pivoted locking-catch a<6> extending over the top of the lever engages a notch in the front of the stove when the grate is raised. The grate may be shaken by means of the lever. Specifications 197,441 and 224,373 are referred to.
Patent GB-1385651-A (GB)
Title: Matrices and decoders for quadruphonic sound systems
IPC: H04H20/88
Filed: 1972-02-02
Abstract: 1385651 Four loud-speaker stereo systems CBS Inc 2 Feb 1972 [3 Feb 1971] 4974/72 Heading H4R In a matrixing system for combining four signals, designated Lf, Lb, Rf and Rb on two transmission channels the signals are combined and subjected to differential phase shift in such a way that on one channel is transmitted major portions of Lf and Lb signals with minor proportions of Rf and Rb signals and with the phases such that Rf and Rb are in phase opposition with each other, and in quadrature with the Lf and Lb signals, while on the second channel is transmitted major portions of Rf and Rb with minor portions of Lf and Lb, the two latter in phase opposition with each other and in quadrature with the Rf and Rb signals. Fig. 4 shows a block diagram of the coding matrix and Fig. 6 a suitable decoding matrix which combines the signals so that each output contains a major component, e.g. Lf, with smaller amounts of adjacent signals, e.g. Rf and Lb, but with cancellation of the diagonally opposite signal, e.g. Rb. In the coder of Fig. 4, the main components in each channel suffer no relative phase displacement but in an alternative arrangement, Fig. 7 (not shown), the signals are phase shifted so that the main components in one of the two channels are displaced in phase by 45 degrees relative the main components in the other channel, the relation between the components in each channel being maintained as in the embodiment of Fig. 4. A suitable decoder is described with reference to Fig. 9 (not shown). The decoder may be provided with gain control logic of the type described in Specification 1,347,994, and suppleinentary phase shifting circuits to adjust the relative phases of the individual output signals.
Patent GB-550688-A (GB)
Title: Colour photography
IPC: G03C7/18
Filed: 1941-04-17
Abstract: 550,688. Colour photography. TECHNICOLOR MOTION PICTURE CORPORATION. April 17, 1941, No. 5005. Convention date, Feb. 20. Drawings to Specification. [Class 98 (ii)] In producing subtractive colour photographs, a colour dominance due to transmission of deep red by the cyan component image which should absorb it is reduced by reproducing the yellow component colouring matter which absorbs deep red as well as the blue colour which it records. This colouring matter may be a mixture of a dye having one property and a dye having the other (e.g. Naphthol Green and Brilliant Paper Yellow). It is stated that in the case of a mixture of two dyes, their ratio may be adjusted so that the highlights of the component absorb relatively more, or about the same amount, or less, of the deep red than do the shadows. The method may be applied in producing dye-imbibition prints in a single gelatin layer, or colour developed prints in multilayer sensitive material, or in a combination process using both printing methods. The Specification as open to inspection under Sect. 91 states also that the yellow component may be coloured by a single dye having both blue and deep red absorption ; and that in the case of colour developed prints, the colouration of the component which is to have the composite absorption may be produced by initially incorporating in its emulsion layer, or in the developing solution therefor, two colour formers which yield on development the required dyes. This subject-matter does not appear in the Specification as accepted.
Patent GB-405119-A (GB)
Title: Improvements in or relating to the manufacture of hard alloys
IPC: C22C29/00
Filed: 1933-02-18
Abstract: Sintered alloys for tools and similar articles comprise 50 per cent or more of tungsten carbide, up to 20 per cent of one or more of the metals iron, nickel and cobalt, and 2-30 per cent of hard mixed crystals of carbides or carbides and nitrides formed from a carbide or nitride of titanium, halnium, or zirconium, and a carbide or nitride of vanadium niobium or tantalum.  The hard mixed crystals are first formed by heating the components in a tubular coal furnace traversed by hydrogen, and are afterwards mixed with the powdered tungsten carbide and auxililay metal.  The mixture is pressed and sintered in a tubular coal furnace traversed by hydrogen, nitrogen or a mixture of these gases, or in a gas current charged with ammonia. After the sintering the alloy may be annealed in a nitrogen atmosphere.
Patent GB-1199555-A (GB)
Title: Chemical Igniting Means.
IPC: C06F3/00
Filed: 1969-01-30
Abstract: 1,199,555. Self-igniting cigars and cigarettes. INDUSTRILABORATORIET A.B. 30 Jan., 1969 [31 Jan., 1968], No. 5166/69. Heading A2C. [Also in Divisions C1 and F4] An igniting means comprises one or more small capsules, each consisting of a jointless, airtight, easily rupturable shell containing a fluid pyrophonic substance. The capsules may be applied by means of a binder to a cigarette, cigarillo, or cigar; when struck against a friction surface, the shell of the capsules is destroyed and the pyrophonic substance ignites; alternatively the friction surface may include the capsules. Apart from friction, the shells may also be ruptured by pressure, blows, or heat. The capsules may be made from glass, polyparaxylylene polyvinyl fluoride, or polytrifluorochloroethylene and may contain a solution in pentane or ethyl acetate of diethyl zinc, or trimethyl or triethyl aluminium as the pyrophonic liquid. In examples, molten polyethylene and a solution of polymethyl methacrylate in acetons are used to make capsules containing triethyl boron. Gaseous or low viscosity pyrophoric substances, e.g. trimethyl boron, may be enclosed in porous alumina spheres before coating with the plastics material. A number of capsules may be enclosed in a common outer shell.
Patent GB-103395-A (GB)
Title: Improvements in or relating to Gaseous Fuel Burners for use in Welding and similar Operations.
IPC: F23D99/00
Filed: 1916-04-08
Abstract: 103,395. Alldays & Onions Pneumatic Engineering Co., and McGowan, R. R. April 8, 1916. Atmospheric gas and vapour burners. - In a welding or like burner in which the combustible gas or vapour mixture is supplied through a body a and perforated plate b to a slotted fire-brick combustion chamber c, the sides, end, and back of the body are integral, the edges of the open side are flanged to receive the plate and block c, and means are provided for retaining the block c in place. As shown in Figs. 2 and 4, the block is provided with bands f clamped by bolts e engaged bv hooked securing-bolts d; but in a modification. longitudinal grooves are provided on the block to enable it to be slid laterally into engagement with inturned flanges on the box a. A screwed cleaning-plug g may be provided, and there may be a hole h at each end of the burner for removing slag etc.; this hole may be closed by a plug, or may be provided with a sliding damper, or a rotary plate i furnished with holes of different sizes, to regulate the admission of secondary air. Gyratory mixing-devices may be provided in the supply pipe a<1>. In other modifications the plate b is removable through a slot in the end of the body a, and, in one form, it is flat and engages grooves in the sides of a tube-like body. Specification 672/15 is referred to.
Patent GB-1455898-A (GB)
Title: Halogen-containing phosphate esters useful as flameproofing agents
IPC: C07F9/12
Filed: 1974-02-05
Abstract: 1455898 Flame retardants for polymers SANDOZ Ltd 5 Feb 1974 [7 Feb 1973] 5177/74 Headings C3P and C3R [Also in Division C2] A polymeric organic material is rendered flame-retardant by treating it with a flameretardant amount of a phosphate triester of the general formula wherein R 1  is a radical of the formula wherein Hal is Cl or Br and n is 3, 4 or 5, R 2  is a radical of the formula wherein Hal is Cl or Br and m is 1 or 2. The flame-retardant may either be coated on the surface of the polymer or incorporated therein and incorporation may be carried out at the monomer or prepolymer stage or in the preformed polymer. Several types of addition polymers and condensation polymers to which the flame-retardant may be applied are specified and an example is given in which various compounds of Formula I either alone or in admixture with antimony trioxide (in a weight ratio of 2 : 1) are mixed with polypropylene powder to render the polymer flame-retardant.
Patent GB-124803-A (GB)
Title: Improved Process for the Purification of Trinitrotoluene.
IPC: C07C201/16
Filed: 1916-04-08
Abstract: 124,803. Clayton Aniline Co., Schedler, A., and Marchant, E. N. April 8, 1916. Trinitrotoluene is purified by treating it in molten condition with chlorine (preferably in the form of sodium hypochlorite) in the presence of sulphuric acid in slight excess.
Patent GB-1180073-A (GB)
Title: Improvements in or relating to the Melting of Metals.
IPC: F27B17/00
Filed: 1967-02-02
Abstract: 1,180,073. Metal melting furnaces. KAISER ALUMINUM & CHEMICAL CORP. 2 Feb., 1967 [21 Feb., 1966], No. 5188/67. Heading F4B. In a method of melting metal, molten salt having a density less than that of the metal and a temperature sufficient to melt it is transferred between two chambers in admixture with the metal by being cascaded into one chamber from a trough and then cascaded backwards and forwards between the chambers via the trough sufficiently to melt the metal, which is finally collected below the molten salt in one of the chambers. Initially, a melting chamber contains the molten salt, e.g. a eutectic mixture of NaC2 44% and KC2 56% and aluminium chippings &c. are fed into the trough. Apparatus for carrying out the above method comprises a pair of rotary melting chambers 10, 24 fired by burners 12, 26 and separated by a mixing trough 18, the chambers being formed with charging openings 22, 32, discharging openings 20, 30 and wall sections 46, 48 of semioblate circular cross-section. The chambers have roller tracks 16 and 34 mounted on rollers 42 and 44 and are partially rotated by cables 36 attached to the chambers and wound round a horizontal capstan 38 attached to winch 40. With molten salt in chamber 10, rotation of the chambers caused it to pass by wall 46 through opening 20, trough 18 and charging opening 32 into chamber 24, metal being introduced into trough 18 through its open face. Reversal of the rotation causes similar cascading by opening 30, trough 18 and charging opening 22 back into chamber 10. In a modification (Figs. 4 and 5), tilting furnaces alongside a mixing trough have discharge shoots at one end and receiving bays at the other, over which the mixing trough is disposed in turn. By appropriate tilting molten material runs from one furnace via discharge shoot, mixing trough and receiving bay into the other furnace, the process being then reversed
Patent GB-251385-A (GB)
Title: Improvements in or relating to trunk offering final selectors for use in telephone systems
IPC: H04Q3/00
Filed: 1925-02-25
Abstract: 251,385. Standard Telephones & Cables, Ltd., and Lowry, L. P. Feb. 25, 1925. Automatic and semi-automatic exchange systems.-A trunk-offering connector if the wanted party is idle rings him at once and if he is busy connects him to the operator's set. If the call is accepted both parties in the local connection hang up and the party wanted for the long distance call is immediately re-rung by the connector which on his reply completes the connection in the usual manner. Signals are given to the operator at each stage of the connection by a relay K which also sends the ringing current. Selection of wanted line. Line relay A and release relay B pull up, and the tens digit is repeated to the vertical magnet VERT. Springs ON change over and at the end of the digit series relay C switches over the impulse circuit to the rotary magnet ROT which then receives the units digits in parallel with relay G. Busy test and signal. If the line is busy, relay E pulls up over the test wiper P, followed on the relapse of relay G by relays H, K. Relay H locks itself to a local ground and relay E to the test wiper. Relay K disconnects the ringing circuit, completes a talking circuit (without a feed battery on the called side) and reverses the connections of the line relay to signal the operator. Ringing current and signal. If the call is accepted, the local subscribers hang up. Relay E falls back, sends forward ground to energize the cut-off relay over B10, E6, H10 and releases relay K. After an interval relay K restores the normal connections of the line relay to indicate that the line is now idle, and. completes the ringing circuit over ringing trip relay F. Ring-back tone is sent over H14 and a small tone condenser. When the call is answered, relay F extends the line back to the feed relay D which re-energizes the reversing relay K. If the wanted party is idle to begin with, relay E does not pull up and on the relapse of relay G ground is forwarded to the cut-off relay over the upper winding of relay H. Relay H pulls up its light armature 5 to complete its locking circuit in which it is energized fully, and ringing current is sent out as just described. Release. This is controlled by the operator and may take place at any stage. When the called party hangs up, relay D releases relay K to give a signal to the operator who then takes down the connection whereupon relays A, B. F, H fall back and the release magnet RLSE is operated in series with a common alarm relay (not shown).
Patent GB-332887-A (GB)
Title: Improvements in or relating to cross rolling machines
IPC: B21B19/02
Filed: 1930-02-17
Abstract: 332,887. Abramsen, P. B. Feb. 26, 1929, [Convention date]. Skew-rolling.- Skew-rolls 3 driven by spiral gearing from a shaft 12 are mounted in slides 5 so thrat the pass can be adjusted by moving the elides in a direction parallel to the shaft 12 by means of screws 8. In Fig. 2 a series of rolls are used, two rolls of different pairs being driven from the one gear on intermediate shafts.
Patent GB-609751-A (GB)
Title: Sun spectacles or goggles
IPC: G02C7/16
Filed: 1947-02-20
Abstract: 609,751. Anti-dazzle spectacles. DAVIES, I. H. Feb. 20, 1947, No. 5380/46. [Class 97 (i)] An eyepiece for anti-dazzle spectacles comprises a solid peripheral portion 7, a plurality of opaque fixed bars 8 integral therewith and spaced to form slits 9, the bars being of greater depth from back to front than the width of the slits and disposed in planes normal to that of the portion 7. The eyepiece may be circular to fit into a spectacle frame, or the eyepieces may be moulded integrally as shown, side arms 12 being hinged to rearwardly extending portions 15 of the frame by metal tubes 14 so as to rotate about axes inclined at approximately 45 degrees to the plane of the frame. Ornaments 20 may be inserted in the pivot tubes 14.
Patent GB-1530111-A (GB)
Title: Materials of high ionic conductivity for use as a solid electrolyte for dry cells and batteries
IPC: C01B17/20
Filed: 1977-02-09
Abstract: 1530111 Intercalary compound COMPAGNIE GENERALE D'ELECTRICITE SA 9 Feb 1977 [19 Feb 1976] 05401/77 Heading C1A [Also in Division H1]  A compound having high ionic conductivity and substantially no electronic conductivity is derived from an intercalary compound of formula A x TX 2  in which A represents an alkali metal, T is Zr, Hf or Th, X is S, Te or Se and 0<x#1 wherein a part of the transition metal T is substituted by a metal having a degree of oxidation less than that of the transition metal, the substitution being such that the free electrons of the alkali metal are trapped in the structure formed. The compound is preferably of formula A x M x T 1-x X 2  wherein A is preferably sodium or lithium; M is a metal of groups IIIa or IIIb, in particular Al, In, Ga, Tl, Sc, Y or La; T is Zr, Hf or Th and x lies between 0 and 1, the value being such that the system is single phased. The compounds may be made by the reaction of a sulphide of the transition metal T with a mixed sulphide, selenide or telluride of the alkali metal and substitution metal M or by reaction of the simple sulphides, tellurides or selenides of the appropriate metals for heating in vacuum, typically at a range of 800-900 C. The examples relate to the preparation of Na 0À5 In 0À5 Zr 0À5 S 2  and Li 0À4 Y 0À4 Zr 0 . 6 S 2 .
Patent GB-212092-A (GB)
Title: Improvements in rollers for squeezing hanks
IPC: D06B23/02
Filed: 1923-02-24
Abstract: 212,092. Lord, S. S. Feb. 24, 1923. Rollers for squeezing hanks have annular enlargements 1, commencing a distance away from the ends and separated by a plain cylindrical portion to receive the hanks, the enlargements, engaging with corresponding depressions 4 to form a tight joint preventing the flow of squeezed liquid over the ends. Fig. 4 shows a modification in which one roller has enlarged ends 5 while the other has reduced ends to fit.
Patent GB-554709-A (GB)
Title: Means for disposing of gases released from the water of a gas scrubber
IPC: B01D47/00
Filed: 1942-04-23
Abstract: 554,709. Gas scrubbers. BRAYSHAW FURNACES & TOOLS, Ltd., BRAYSHAW, S. N., NEWMAN, F. C., and RUSHTON, F. April 23, 1942, No. 5439. [Class 55 (ii)] Gases given off at the water discharge end of a U-pipe a forming a water trap for the water discharged from a gas scrubber are carried away through an extension B of the U-pipe. Air, admitted through a liquid discharge opening d, and passing over the outflowing liquid in a horizontal pipe a<1>, carries away the gases passing up the pipe B. The air and gas current may be increased by the use of a fan, or by injecting compressed air or steam into the pipe B. Alternatively, a burner b', Fig. 6, may increase the gas current by convection, a restricted throat b<4> bringing inflammable gases into contact with the flame. An electric heating element b<5>, Fig. 7, in the pipe B or around it serves the same purpose.
Patent GB-799428-A (GB)
Title: Improvements in and relating to complete fertilisers
Inventor: KEITEL HELLMUTH
IPC: C05B7/00
Filed: 1955-02-23
Abstract: A complete fertilizer composition contains 2 to 10 per cent of assimilable magnesia, a total nutrient content higher than 55 per cent, contains water soluble as well as citrate soluble phosphate components and has a ratio of N : P2O5 : K2O : MgO of 1 : 0,8-1,5 : 1,5-2,5 : 0,1 - 1,5.  The magnesium may be supplied as calcined or hydrated ammonium magnesium phosphate or sulphate and the nitrogen component may be present as nitrate or ammonia.  Examples relate to compositions containing potassium nitrate, ammonium magnesium phosphate and mono- or di-ammonium phosphate, ammonium sulphate and magnesium phosphate.  The production of fertilizers from potassium phosphates, chlorides, sulphates, potassium ammonium phosphates, magnesium ammonium phosphates and magnesium phosphate are referred to.