baber/WOPTO huggingface dataset:
Patent GB-1432603-A (GB)
Title: Devices for heat-sealing plastics or plastic-coated material
IPC: B29C65/14
Filed: 1973-05-04
Abstract: 1432603 Seaming TETRA PAK INTERNATIONAL AB 4 May 1973 [23 May 1972] 21362/73 Heading B5K [Also in Divisions H3-H5] Dielectric heating, produced by a high-frequency electric field (200-800 Hz) in a cavity resonator and simultaneous pressure by an edge of a plate 7 in the cavity 12 is used to seal together two adjacent thermoplastics coatings on plastics faced paper 10. The cavity resonator consists of a rectangular cross-sectioned cavity 12 defined by two wide sidewalls 5 and a "roof" 6 to which plate 7 is attached to depend centrally in the cavity. Narrow sidewalls may connect the wide sidewalls and be connected to the roof. High frequency generator 1 is connected to the cavity by a coaxial cable 2, central conductor 3 being connected to plate 7, the shield conductor 4 being connected to sidewalls 5. A yoke 8 electrically connected to a narrow sidewall of the cavity may intensify the field at the edge of the plate 7. To reduce the overall height of the device whilst retaining the same resonant length, the cavity may be stepped (Fig. 3, not shown) or U- or S- or L-shaped. The pressing edge of plate 7 may be broadened (Fig. 4, not shown) to give two parallel adjacent narrow sealed zones between which a cut may be made.
Patent GB-1434501-A (GB)
Title: Removal of tritium from irradiated material
IPC: G21F9/00
Filed: 1974-05-15
Abstract: 1434501 Processing radio-active substances SAINT - GOBAIN TECHNIQUES NOUVELLES 15 May 1974 [18 May 1973] 21449/74 Heading G6R Irradiated solid material, e.g. spent nuclear fuel elements, is processed to remove tritium and recover uranium and plutonium by dissolving the material in nitric acid, extracting U and Pu with an organic solvent, washing the organic phase first with an aqueous solution containing tritium and nitric acid and then with a small amount of tritium-free nitric acid in order to remove tritium, and then contacting the organic solution with an aqueous phase to extract the U and Pu; the organic phase and aqueous effluents containing tritium are recycled. In the embodiment described, gas from the fuel element shearing stage and the dissolving stage is condensed and dehydrated to remove tritiated water. After recovery of U and Pu from the tributyl phosphate organic extract by contact with aqueous solutions, the organic phase is washed with sodium carbonate solution which is concentrated and combined with the aqueous phase from the first extraction. This aqueous phase is concentrated to obtain a solid residue containing the fission products. The tritiated water and nitric acid removed from the aqueous phase are rectified and recycled, part of the tritiated water being removed from the process.
Patent GB-1388724-A (GB)
Title: Survival support devices
IPC: A62B7/02
Filed: 1972-05-09
Abstract: 1388724 Respirators LEAR SIEGLER Inc 9 May 1972 [10 May 1971] 21496/72 Heading A5T [Also in Divisions F2 and F4] A survival support device comprises a hood 11, Fig. 1, having a transparent front 14, an elongate hollow coil of high pressure tubing for containing a breathable gas at high pressure within the bore of the tubing, a regulator 29, Fig. 5, within the hollow of the coil for maintaining a substantially constant outlet pressure over a broad range of inlet pressures to maintain at substantially constant outlet flow, an actuator 26 within the hollow of the coil for substantially instantly providing fluid communication between the regulator and the tubing, and means for supporting the coil from the hood 11 at the rear thereof against the nape of the user's neck, the coil comprising coaxial inner and outer coils each in the form of a laterally flattened helix having a pair of straight parallel sides. The flow actuator 26 is coupled to the tubing via a tube 36 leading to a bore 38 in a body 35, the bore 38 communicating with a pressure gauge 42 and via a ball seal 44 with a bore 51 by means of which the coil may be filled on unseating ball 44 by unscrewing a plug 46. Removal of a pin 59 allows a spring 58 to force a plunger 56 to pierce an aluminium diaphragm 39 thereby permitting gas flow from the reservoir to the regulator 29. The Regulator 29 receives gas via bores 72, 73 and a chamber 74 having surface areas balanced so that the gas therein does not tend to move a piston 76. Gas escapes from chamber 74 between a blunt knife edge 77 and the piston 76 to pass into a chamber 79 wherein gas pressure urges the piston 76 against the action of a spring 78 towards edge 77. Gas passes from chamber 79 to the interior of hood 11 via a flow limiting orifice 83. The combination of parts 76, 77, 78, 79 and 83 is stated to provide a substantially constant flow rate of gas over a 20:1 range of gas pressure in the tubing reservoir, e.g. 5000 to 250 p.s.i.g.
Patent GB-1179488-A (GB)
Title: Self-Drilling Screws
Inventor: PRESCOTT ARTHUR WARREN
IPC: F16B25/10
Filed: 1967-05-09
Abstract: 1,179,488. Making self-drilling screws; forging; self-tapping screws. ILLINOIS TOOL WORKS Inc. 9 May, 1967 [10 May, 1966], No. 21545/67. Headings B3A, B3H and B3N. A self-drilling screw comprises a forged drilling end portion 26 having a diameter less than the maximum crest diameter but greater than the root diameter of the thread convolutions 32 and having a pair of diagonally opposite forged flutes 40, 42, partially defined by first flute surfaces 44, 46 intersecting forged entering end surfaces 60, 62 at cutting edges 64, 66 which extend radially outwards from the edges of a tip 56. The end surfaces 60, 62 are relieved behind the cutting edges 64, 66 and have a convex configuration with varying radii of curvature greater than the radius of the drilling end portion 26. The flutes 40, 42 are further defined by flute surfaces 48, 50 disposed perpendicular to the first flute surfaces 44, 46 and extending from the trailing ends of reaming edges 132, 134 to opposite corners of the tip 56. In another embodiment (Fig. 16, not shown), the cutting edges (64d, 66a) are located in a common plane with which the tip (56a) is inclined, e.g. 15 degrees. After the end portion 26 has been formed by forging between a pair of dies, the threads 32 are rolled on to the shank portion.
Patent GB-315764-A (GB)
Title: Improvements in the manufacture and production of valuable liquid products from solid distillable carbonaceous materials by destructive hydrogenation
IPC: C10G47/00
Filed: 1929-07-15
Abstract: 315,764. I. G. Farbenindustrie Akt.- Ges. July 17, 1928, [Convention date]. Mineral and tar oils, purifying; lubricants for machinery.-Liquid or readily liquefiable products are obtained from solid distillable carbonaceous materials such as coals, oil shales or other bituminous substances by subjecting the said initial materials to destructive hydrogenation under mild conditions so that the formation of benzine is substantially avoided, and then subjecting the treated material to extraction by solvents. By hydrogenating under mild conditions the heavy oils which prevent the asphaltic substances from being precipitated are preserved, and the separation of the liquid products from the solid residue is facilitated. Solid paraffins and high boiling point constituents suitable for the production of lubricating oils may be removed before or after the extraction process. The extraction is preferably carried out under pressure with solvents which do not precipitate asphaltic substances. Brown coal containing 11 per cent ash is passed at 450‹ C. and 200 atmospheres pressure in counter current to hydrogen; 40 per cent of the coal is converted into liquid products which are condensed out of the hydrogen stream; the pasty residue, on extraction with benzene, yields 45 per cent of high molecular weight products suitable for the production of lubricating oil.
Patent GB-136663-A (GB)
Title: Improvements in or relating to Splash Preventers for Domestic and other Taps.
Inventor: PURSER ALFRED JOHN
IPC: E03C1/086
Filed: 1918-12-30
Abstract: 136,663. Purser, A. J. Dec. 30, 1918. Strainers, applications of.-A splash-preventer and crockery guard for the outlets of domestic taps comprises a series of gauze disks mounted in a onepiece metallic nozzle detachably secured in a rubber tubulus by means of an interfitting flange and recess. In the form shown in Fig. 1, the upper part of the tubulus a, where it engages the tap spout, is provided with an exterior strengthening-rib a<1>, and the lower part is recessed at a<2> to receive a flange b<1> on the nozzle b<2>. The upper part of the nozzle is spun over to secure the gauze disks c. In a modified form, the lower end of the tubulus is formed with an exterior flange adapted to take into a recess formed in the nozzle, the gauze disks being gripped between the end of the tubulus and the lower side of the recess.
Patent GB-736466-A (GB)
Title: Improvements in or relating to a grain separator and a method of separating grain
IPC: B02B1/02
Filed: 1953-08-07
Abstract: 736,466. Centrifugal separators. SATAKE, T. Aug. 7, 1953, No. 21824/53. Classes 23 and 117. A mixture of grain is separated into light and heavy fractions by directing the mixture on to the upper surface of a rotary circular plate surrounded by a stationary wall, the heavy fraction being removed from a zone adjacent the wall and the light fraction being removed from a radially inner zone. As shown, the apparatus comprises three separators operating in parallel and mounted one above the other. The plates 47, 53, 62 are rotated by a shaft 31 driven by a variable-speed gear (see Group XXIV), and are surrounded by stationary walls 43, 52, 61. A pipe 92 having branches opening through the walls serves for the collection of the heavy fractions. Suction pipes 94, 95, 96 remove the lighter fractions which are directed to a cyclone 98 for further separation. The grain mixture passes from a hopper 74 through a valve 82 to a rotary distributer 76 frictionally mounted on the shaft 31. During part of its rotation the distributer supplies grain to a hopper 80 feeding the plate 62 by an annular passage 70, and during the rest of its rotation the distributer feeds the plates 53, 47 by means of annular passages 64, 59 and 63, 56. The rotation of the distributer may be stopped by a screw 85.
Patent GB-933811-A (GB)
Title: Blade mounting bolts
Inventor: RICHARDS ARTHUR FRANCIS
IPC: F16B5/02
Filed: 1962-06-06
Abstract: 933,811. Bolted joints; shear blades. RICHARDS SHEAR CO. June 6, 1962, No. 21854/62. Class 83 (4). [Also in Group XXV] A blade mounting means comprises a blade mounting member, a blade removably secured to said member and a fixing bolt extending through said blade and mounting member, said bolt including a conical head portion and a shank portion angularly extending from said head portion, said blade being generally rectangular in shape and including opposed conical recesses formed in opposite sides thereof; said mounting member including blade engaging surfaces formed in right-angled relationship, a bolt passage formed in and through said mounting member and opening at one end to one of  said blade engaging surfaces, said bolt passage being angularly directed relative to the blade engaging surface whereby the bolt when tightening force is applied will cause the blade to seat firmly against each of the blade engaging surfaces. In a slot-cutting shearing machine the upper blades 22 are secured by bolts 25 extending through holes 31 in the cross-head and locked by nuts 30. The holes 31 are larger at the end adjacent the blade seat, and the angle between the centre-line of the hole and horizontal plane is approximately equal to half the included angle of the conical recesses 26 in the shear blades. The blades have recesses in each face so that they can be reversed in their seats. The lower blades 20 are similarly held by bolts 25x, on to a seat 18 which has a horizontal face 18a and a vertical face 18b.
Patent GB-1318351-A (GB)
Title: Composite armour
IPC: F41H5/04
Filed: 1969-04-29
Abstract: 1318351 Laminates NORTON CO 29 April 1969 [6 May 1968] 21893/69 Heading B5N [Also in Division F3] A composite armour panel comprises a ceramic face plate secured to a metal backing plate. The face plate may be of boron carbide, 0À7 in. thick, and the backing plate of aluminium alloy, 0À5 in. thick, the two plates being secured together by means of a high temperature adhesive such as a modified acrylic phenolic solution or a polysulphide bond material. A panel of this construction will defeat impact by a À50 calibre armour piercing bullet and withstand temperatures of up to 400 F, and is suiable as armour for helicopter engines. During the initial few microseconds after impact, the projectile fractures the ceramic and the ceramic fractures the projectile. When the fracture process has been completed, the backing plate begins to yield, going into a tensile stress condition and continuing to yield until it has been deformed adequately to absorb all the kinetic energy of the fractured ceramic and projectile.
Patent GB-916285-A (GB)
Title: New 1,2,4-thiadiazoles
IPC: C07D285/08
Filed: 1961-06-16
Abstract: The invention comprises compounds of the formula <FORM:0916285/IV (b)/1> where R is an alkyl radical of up to 4 carbon atoms substituted by at least one halogen atom and Hal is halogen; and their production by reacting a perhalomethyl mercaptan Ha13CSHal with an R-substituted amidine in the presence of an acid-binding agent, e.g. an alkali metal hydroxide.  The compounds of the invention are fungicides (see Group VI).ALSO:Fungicidal compositions contain as active ingredient a compound <FORM:0916285/VI/1> where R is an alkyl radical of up to 4 carbon atoms substituted by at least one halogen atom and Hal is halogen (see Group IV (b)). The compositions may be solutions, emulsions, suspensions, powders or granulates, and may also contain other fungicides, insecticides, nematocides, herbicides or fertilizers, or agents improving the soil structure.  Examples employ talc and sand as carriers.
Patent GB-613894-A (GB)
Title: Improvements in and relating to lamp sockets for tubular electric discharge lamps
IPC: H01R33/08
Filed: 1946-07-24
Abstract: 613,894. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd. July 24, 1946, No. 22076. Convention date, July 28, 1945. [Class 38 (i)] A recessed socket of the construction described in Specification 613,895 for doubleended tubular lamps is provided with a lever 5 to eject the lamp and with a stationary receptacle 6 to catch a lamp pin 20 when the lamp has been ejected. The lamp pin is urged by a spring, in the other socket, Fig. 1 (not shown), acting on the other lamp cap, to engage terminals 19, thereby shorting them to close the primary circuit of an autotransformer, Fig. 2 (not shown), and nestles in a grooved surface 32 on the lever 5. The surface 32 is also curved to guide the pin downwards into the receptacle, which comprises a U-shaped strip 34 secured to a bracket 28 which is mounted on the socket and carries the lever 5. A plate 21 in the open end of the socket recess 12 prevents the contacts 19 from being exposed and is apertured to allow the pin 20 and the lever free movement.
Patent GB-365608-A (GB)
Title: Improvements in the production of sound records on films
IPC: G11B7/00
Filed: 1930-07-22
Abstract: 365,608. Reproducing sound. FIDELITY FILMS, Ltd. and CROWTHER, F. K., Blattner Studios, Boreham Wood, Elstree, Hertfordshire. July 22, 1930, No. 22081. [Class 40 (ii).] In reproducing photographic sound records by light from an electron discharge tube in which the glow extends throughout the length of the tube, the tube is arranged parallel and close to a slit through which and an optical system the beam is directed to the sound record. The Figure shows the tube a<2> close to a slit s beyond which the beam is directed by a lens L on to the sound record s, r. The tube may contain neon, hydrogen or helium to reduce the necessary voltage, and it may then be necessary to use panchromatic film which is sensitive to red or yellow lights.
Patent GB-641073-A (GB)
Title: Improvements in and relating to the manufacture of steel
IPC: C21C7/06
Filed: 1945-08-28
Abstract: Molten steel is degasified and deoxidized by adding thereto calcined limestone which has been impregnated with hydrocarbon derived from the distillation of petroleum or coal, such as pitch or bitumen, either under pressure or vacuum or by subjecting it to prolonged heating in an open vessel.  The treatment may be carried out in the ladle or in casting moulds.  Specification 640,448 is referred to. The Specification as open to inspection under Sect. 91 states also that the substance so produced may be used after it has been subjected to a preliminary distillation to remove all its volatile matter.  This subject-matter does not appear in the Specification as accepted.
Patent GB-806295-A (GB)
Title: Improved fastener for securing together or reinforcing parts of cases and the like
IPC: F16B15/00
Filed: 1956-07-18
Abstract: 806,295. Nails; spiked-plates. FORREST, G. V. July 15, 1957 '[July 18, 1956], No. 22243/56. Addition to 766,464. Class 89(2) In a fastener according to the parent Specification the or each fastening - element or captive-nail in either or both limbs of the angularmember 1 is or are replaced by barbednails 4 held in their respective holes by the barbs. The nails are of harder material than the angular-member, and the barbs comprise equally-spaced circumferentialgrooves of wedge-form. The tip of either limb may be bent-over to form one or more prongs 12.
Patent GB-728237-A (GB)
Title: Improvements relating to the treatment of textile materials with a colloidal solution of silica
Inventor: PAYNE JOHN
IPC: D06M11/57
Filed: 1952-09-04
Abstract: Textile materials are immersed in an aqueous colloidal silica solution and there is then added a metallic salt capable of producing in solution a positive ion having an ionic charge of at least three, so that silica is deposited upon the textile material.  The rate of deposition of silica increases with increase in quantity of the metallic salt added and also with increase of the pH value of the solution, but a uniform deposition is obtained with pH less than 7. The silica solution may vary up to 30 per cent by weight concentration, but concentrations of the order of 0.05 per cent are preferred.  The metallic salt may be added in the ratio by weight of 0.5 to 2 : 1 relative to the weight of silica.  The textile materials may be immersed in a bath of water to which the silica solution is afterwards added with stirring.  The water may be acidified prior to the immersion of the materials, or the colloidal silica solution may be acidified, or the metallic salt may be added in aqueous solution which may be acidified.  The metallic salt may be aluminium sulphate or acetate, alum, chrome alum, ferric chloride or sulphate or ceric ammonium nitrate.  Acetic or hydrochloric acid may be used for the acidification.  The colloidal solution of silica may be buffered to a constant pH with a solution of sodium acetate in acetic acid. The materials may be after-treated with a cationic softening agent, suitably at 40 DEG  C.  Textile fibres, yarns or fabrics of wool, cotton, silk, regenerated cellulose, cellulose acetate or nylon may be treated.  Specifications 607,696, 611,914, [Group III], 626,847; 645,703, 649,896, 649,897, 654,850, 660,593, 662,423 and 663,013, [all in Group III], are referred to.
Patent GB-705870-A (GB)
Title: Improvement in pipe connections
IPC: F16L27/11
Filed: 1951-09-24
Abstract: 705,870. Pipe joints. MASCUCH, J. J., and PETERS, M. F. Sept. 24, 1951 [Jan. 30, 1951], No. 22263/51. Class 99 (1). An expansion joint or flexible junction-piece includes two spaced bellows members 8, 9 the axes of which are arranged to intersect at right angles. The bend 11 connecting the bellows may be spring-supported such as by a number of coiled springs connecting the bend to a supporting ring which surrounds it.
Patent GB-1364415-A (GB)
Title: Vehicle occupant restraint system
IPC: B60R21/20
Filed: 1973-05-10
Abstract: 1364415 Vehicle crash bags GENERAL MOTORS CORP 10 May 1973 [18 May 1972 10 Nov 1972] 22294/73 Heading B7B An inflatable air cushion 36 is inflated via slots 34 in a gas diffuser 18, slits 46 in a flexible seal 44, and slits 42 formed in the cushion wall, and is mounted on the diffuser by means of a bracket 48 which is connected by bolts 56 to the diffuser. Each of the slits 42 is aligned with one of a pair of slits 46 which communicates with one of a group of slots 34. The bracket 48 is provided with louvred openings 52 and its securing bolts 56 are screwed into posts 70 passed diametrically through the diffuser to each side of a group of slots 34. The bag 36 may be formed by a knee cushion positioned within a torso cushion 40, the latter being inflated through slots 38 in the diffuser. The seal 44 may have an extended flap portion to shield the bag 36 from gases passing through the slots 38.
Patent GB-755380-A (GB)
Title: Installation for extraction of dust from hot waste gases, in particular waste gases from a cupola, and method of operating such installation
IPC: B01D46/30
Filed: 1954-08-03
Abstract: 755,380. Cupola furnaces. STRIKFELDT, W. S. Aug. 3, 1954 [Aug. 3, 1953 ; Nov. 7, 1953], No. 22501/54. Class 51(1). [Also in Group XXVIII] Hot waste oxygen-free gas from a cupola 1 is freed of solid particles by a bed 6 of coke or ceramic material which is discharged after use into a vessel 12 and replenished from a storage reservoir 11. Residual combustible gas is burned in a chamber 4 and the heat content of the gas is used to warm an exchanger 8 through which air is supplied to the furnace 1. The coal waste gas is discharged by a fan 9 to atmosphere.
Patent GB-485452-A (GB)
Title: Improvements in processes for producing antirachitic substances
IPC: A61K31/593
Filed: 1936-08-17
Abstract: Cholesterol is treated with non-gaseous oxidizing agents to produce provitamin and is irradiated to produce vitamin.  The treatments may be successive.  Oxidizing agents mentioned are hydrogen peroxide, benzoyl peroxide, eosin and chromic anhydride. The cholesterol may be rendered free from provitamin by conversion into the dibromide, recrystallizing the dibromide, removing the bromine and recrystallizing the cholesterol. Examples describe the oxidation treatment with hydrogen peroxide with simultaneous and successive irradiation respectively, and with benzoyl peroxide.  It is stated that chromic anhydride in glacial acetic acid may be used in quantity one-fifth to one-sixth of the quantity of cholesterol.
Patent GB-1103955-A (GB)
Title: Preparation of polyurethanes from ketone-phenol condensates
IPC: C08G18/38
Filed: 1965-05-27
Abstract: A polyurethane is prepared by (I) condensing an hydroxyalkylated phenol with a ketone and (II) reacting the resulting product with an organic polyisocyanate.  The hydroxyalkylated phenol may be made by reacting a phenol of formula <FORM:1103955/C3/1> where R1 can be H, F, Cl, Br or a monovalent organic group with an alkylene oxide, glycidyl compound or epihalohydrin (optionally with minor quantities of diepoxides in addition) in the presence of a polyether forming catalyst. The ketone may have formula <FORM:1103955/C3/2> where R2 and R3 are:-methyl, ethyl, benzyl, cyclohexyl, allyl or chloromethyl. Step II may be conducted in the presence of a foaming agent and a phosphorus containing compound, e.g. a phosphoric acid or ester. Conventional polyurethane forming catalysts may also be present in step (II). In an Example 2-phenoxyethanol is condensed with acetone, to give a product which may be reacted with tolylene diisocyanate with or without a foaming agent, e.g. trichlorofluoromethane.