baber/WOPTO huggingface dataset:
Patent GB-1166227-A (GB)
Title: Process for the Production of Foam Plastics Based on Isocyanates
Inventor: GROGLER GERHARD
IPC: C08G18/20
Filed: 1968-02-22
Abstract: 1,166,227. Foamed plastics. FARBENFABRIKEN BAYER A.G. 22 Feb., 1968 [28 Feb., 1967], No. 8580/68. Headings C3C and C3R. Foamed plastics are prepared by reacting (a) compounds containing hydrogen atoms which are reactive to isocyanates, (b) polyisocyanates and (c) water as a blowing agent, the foaming taking place in the presence of compounds which have at least one aziridine ring in which the nitrogen atom is attached to a methylene group which may be alkylated or arylated, and in the case in which a compound containing only one aziridine ring is used, there is at least one hydrogen atom in the molecule which will react with isocyanate groups. The process may be carried out by (i) reacting all the components together simultaneously, (ii) reacting the reactive hydrogen containing compound (a) with excess polyisocyanate (b) to form a prepolymer which may then be reacted simultaneously or successively with the other reactants, (iii) reacting the prepolymer described in (ii) with aziridines which contain reactive hydrogen atoms, if desired in admixture with a further quantity of a compound which contains reactive hydrogen atoms to form polyaziridine compounds, which can then be foamed with polyisocyanates and water. The foaming may be carried out in the presence of compounds which catalytically accelerate the opening of the aziridine ring. Particularly suitable are alkanesultones and/or aryl sulphonic acid alkyl esters which compounds also act as quaternizing agents. Suitable compounds (a) are polyesters and polyethers. The polyisocyanate (b) is preferably an aliphatic or aromatic diisocyanate Suitable aziridine ring-containing compounds are those of the general formula in which R is a hydrogen atom, an alkyl, cycloalkyl or aryl radical, R<SP>1</SP> is a hydrogen atom, an alkyl, hydroxyalkyl or aryl radical in which two groups R<SP>1</SP> can be joined together to form a ring, A is -(CR 2 )- or a bifunctional organic radical which is linked to the aziridine nitrogen atom via -(CR 2 )-, those of the general formula wherein R<SP>1</SP> and A are as defined above, addition products of 1,2-alkylene oxides with aziridines of the formula addition products of the aziridines of Formula II to hydroxyalkyl esters of α,#-unsaturated carboxylic acids, addition products of aziridines to α,#-unsaturated carboxylic esters of polyhydric alcohols, polyaziridines which have been prepared by addition of aziridines to polyesters of α,#-unsaturated dicarboxylic acids and polyhydric alcohols and polyaziridines prepared by addition of aziridines of the general Formula II to polymers obtained by epoxide polymerization of compounds of formula or to the condensation product of the general formula
Patent GB-1029283-A (GB)
Title: Improvements in or relating to the control of illuminants
Inventor: CALKIN ROBERT BERNARD
IPC: G03B27/73
Filed: 1962-03-06
Abstract: 1,029,283. Control of coloured illumination. KODAK Ltd. Feb 28,1963 [March 6,1962], No.8606/62. Headings G2C and G2J. In order to obtain uniform colour balance of an illuminant for use in colour measurement or copying, the light, after passing through appropriate colour filters, is passed successively through two "scrambling" or mirror boxes, the second being larger than the first. As shown, the light from the source is passed through a preliminary light box 1, and then through two rows of colour filters 2,3 each row comprising at least two filter elements. The light then passes through first mirror box 4, whose length is twise the diagonal of its cross-section, such that the diffusing screen 5 at its lower end is illuminated by uniformly coloured light. In order that large-area transparencies may be illuminated, second mirror box 6 is provided below the first, of larger section. This has a length equal to the diagonal of its crosssection, and uniform illumination is produced on the diffusing screen 7, below which the transparency is placed. In order to produce a higher level of illumination, four separate light sources and first mirror boxes may be used with a single common second box (Fig. 2, not shown).
Patent GB-254380-A (GB)
Title: Improvements in and relating to means for operating valves or other mechanism for use more particularly in connection with glass moulding machinery
IPC: C03B9/40
Filed: 1925-03-31
Abstract: 254,380. McNish, A., and Glass Machinery Corporation, Ltd. March 31, 1925. Actuating - mechanism.-Cam mechanism for operating valves or other mechanisms, more particularly for valves in glass-moulding machines, comprises a pair of contiguous cam discs 8, 8<a> which are relatively adjustable, angularly, to vary the effective length of the cam surface, spring means 9, 10 being provided for holding the discs in the adjusted position. The adjacent surfaces of the discs may be serrated to ensure better engagement. The mechanism is shown applied in connection with a roller 6, slide 3<b>, and piston valve 3 for controlling the passage of compressed air from an inlet 2, through an axial and radial passage 4, 4a, to a lateral outlet passage in the casing 1.
Patent GB-145894-A (GB)
Title: Improved process of refining oil by distillation
IPC: C10G7/00
Filed: 1919-04-05
Abstract: 145,894. Forward, C. B. April 5, 1919. Hydrocarbons, distilling and cracking; spray evaporators; rectifiers. - In distilling and cracking oils, the oils are gradually heated, before admission to the vaporizing-chamber 16, by passage through a coil 8 heated by the flue gases from a steamgenerator, and then through a series of heaters 4, 5, 6 supplied with superheated steam from t h e steam - generator by pipes 18, 19. The plant comprises a battery of the heating and vaporizing units 4, 5, 6, 16. In each set, the steam' after use in the heater 6 is led by a pipe 17 to the pipe 14 conveying the heated oil to an atomizer 15 in the vaporizing- chamber 16. The steam that has been used in the heater 5 of one set is led through the heater 4 and thence to a superheater 7, whence it passes to the heater 6 of the next set in the battery. The flue gases from the steam superheaters are admitted to the main stack either above or below the oil-heating coil 8. The vapours from each of the vaporizing chambers 16 are fractionated in a series of condensers 23, 25, &c., which are each supplied with a spray of water controlled in quantity to produce the requisite condensates. The steam is superheated to a temperature of about 800-900‹ F. The heavier distillates may be returned for re-treatment either at a slower rate of feed or at higher temperatures.
Patent GB-730338-A (GB)
Title: Improvements in and relating to tube expanders
Inventor: HOPKINS JOSEPH
IPC: B21D39/10
Filed: 1953-03-28
Abstract: 730,338. Tube expanders. ADAMSON & CO., Ltd., D. March 26, 1954 [March 28, 1953], No. 8631/53. Class 83 (4). A tube expander having a rotatable and longitudinally slidable tapered mandrel in a cylindrical casing, with a driving connection at one end of the casing and a roller cage at the other, has the mandrel urged outwardly by a spring and inwardly by a weaker spring, the outward urge of the stronger spring being removable whereby when the mandrel has been moved outwardly to expand a tube by urging the rollers in the cage outwardly, and the direction of rotation of the roller cage is reversed, the weaker spring now free to expand will with. draw the mandrel. A casing 4 is adapted at one end 5 for connection to a driving unit and carries at its other end a roller cage 16 mounting tapered rollers 18 inclined slightly to the axis of the cage. A tapered mandrel 13 extends through the cage 16 to engage the rollers 18 and is urged outwardly to the expanding position by a strong spring 6 pressing a collar 7 against the end 12 of the mandrel. Drive to the expander is automatically stopped on completion of the tube expanding operation by an overload release. When the tube expanding has been completed the collar 7 is lifted away from the mandrel end 12 by a sleeve 10, pins 9 on which engage the collar and are guided by slots. 11 in the casing 4. The sleeve 10 is locked, in a position in which the spring 6 is compressed and the collar 7 is out of contact with the mandrel, by turning it to lock the pins 9 in locking ends of the slots 11. The tool is then rotated in the reverse direction and this in conjunction with the pressure of a weak spring 14 moves the mandrel 13 inwards.
Patent GB-826899-A (GB)
Title: Fluid seals for relatively rotating parts
Inventor: COLBY GEORGE EDWIN
IPC: F16J15/36
Filed: 1958-03-18
Abstract: 826,899. Stuffing-box substitutes. MAGNETIC SEAL CORPORATION. March 18, 1958, No. 8653/58. Class 122 (5). A rotary shaft seal comprises two sealing rings 14 and 31 urged into facial sealing contact by magnetic means, one ring 14 being fixed to the shaft 10 for rotation therewith and the other ring 31 being non-rotatably and axiallymovably mounted in the shaft housing 11 and sealed thereto by a metal seal, such as a metal bellows 37. The ring 14 is a permanent magnet and is secured between sleeves 17 and 18 to the shaft 10, the sleeves and the shaft being of non-magnetic material, for instance, a stainless steel alloy. The ring 31 is of material magnetically attracted to the ring 14 so that a sealing face 34 of an insert 32, which may be of carbon, in the ring 31 contacts a sealing face 15 of the ring 14 to prevent escape of fluid in chamber 12. The bellows 37 is welded at one end to the ring 31 and at the other end to a flange 24 secured to the housing 11 by screws 26 and sealed thereto by a metal gasket 27. A sleeve 29 secured between the flange 24 and the housing 11 extends around the bellows 37 and has projections 36 that engage in recesses 35 in the ring 31 and hold the latter against rotation whilst permitting axial movement. The magnetic sealing contact pressure is augmented by the differential pressure across the ring 31 due to the sealed fluid pressure. In a modification, Fig. 5, a non-rotatable ring 52 having a carbon insert 54 in sealing contact with a magnetic ring 51 secured to the shaft 50 is slidably sealed to the shaft housing 56 by a number of metal piston-rings 58.
Patent GB-1470750-A (GB)
Title: Welding material for electric arc welding
IPC: B23K35/30
Filed: 1976-03-04
Abstract: 1470750 Welding by fusion VEREINIGTE EDELSTAHLWERKE AG 4 March 1976 [25 March 1975] 08656/76 Heading B3R [Also in Division C7] A welding material, for producing austenitic weld deposits by electric arc welding, of composition: where % N 2 #0À005% Cr+0À005% Mo and % Ni+0À5% Mn + 25% N 2 #27. The material may be in the form of plain rod, strip flux cored wires, or flux coated wire using a flux of composition CaCO 3  45%, CaF 2  45%, FeSi 2%, Mn metal 3% and potassium silica gel 5%. TIG welding and welding using argon are referred to.
Patent GB-1389481-A (GB)
Title: Powdered or granular organic or inorganic material
IPC: C02F1/68
Filed: 1972-02-24
Abstract: 1389481 Trivalent chromium coated powders or granules WIBAU WESTDEUTSCHE INDUSTRIE-UND STRASSEN-BAU-MASCHINEN-GmbH 24 Feb 1972 [24 Feb 1971] 8664/72 Heading B2E [Also in Division Cl] A powdered or granular organic or inorganic material has on the surface thereof a coating of trivalent chromium and a bridge builder, the bridge builder being present at least at the surface of the coating. Quartzite, silicaceous sand, perlite dust, and sawdust are coated with aqueous solutions of chromium sulphate and a bridge builder such as polar oil of animal or vegetable origin or thermoplastics non-polar material or oil, a resin, chipped or blended bitumen, a wetting agent precipitated with an alkaline earth metal salt, e.g. dodecyl-2-sulphate. No extra bridge builder is required with sawdust since oils within the sawdust provide binder. Rice shells and comminuted straw are also mentioned. The powdered or granular material coated with the trivalent chromium is heated to dryness either before or after coating with the bridge builder. The product acts as a "wick" for burning off oil, for example oil spilt on water. Neat's-foot oil, tall oil, rape oil, olive oil and paraffin are examples of bridge builders. It is stated that the coated mineral powders show increased covering by oils or thermoplastics in the presence of water where the pH is below 7, so that variation of pH may be used as a technique for separating oils from water.
Patent GB-494509-A (GB)
Title: A new or improved cord and the manufacture thereof, or articles made therefrom
IPC: D02G3/28
Filed: 1937-03-25
Abstract: 494,509. Threads or cords. DUNLOP RUBBER CO., Ltd., DUNLOP COTTON MILLS, Ltd., ANDERSON, J., and LANGSTRETH, M. March 25, 1937, No. 8789. [Class 120 (iii)] A cabled thread or cord for use in tyre covers, belts, &c. is made in three or more twisting operations the last three of which proceed in the same direction ; the antepenultimate operation is preferably the spinning operation. The cord may be subjected to a setting treatment by rubber or the like or a mixture thereof or by gum or by steaming during or after production of the cord and it may be stretched before, during, or after, setting. The setting treatment may be the rubberizing operation used when making cord fabric for tyres.
Patent GB-351478-A (GB)
Title: Improvements in carburetters
IPC: F02M17/02
Filed: 1930-03-19
Abstract: 351,478. Spray-carburetters. BARB•, J., St.-Arroman, Barthe de Neste, Hautes-PyrÚnÚes, France. March 19, 1930. No. 8860. Convention date, Nov. 16, 1929. [Class 7 (iii).] In a floatless carburetter, a fuel valve e<1> is opened as a crosshead h makes contact with an adjustable stop g<1>, the fuel passing through tapered slots i<6> to the interior of a tube i, whilst primary air enters through a slot i<5> ; the point at which air is admitted to the latter is adjustable by means of a screw k. The rich mixture thus formed passes to an annular expansion chamber r<1> surrounding a venturi r, to the interior of which the primary mixture passes through ducts r<2>. Secondary air is admitted to the ducts r<2> through passages r<5> as ports s<5> in a sleeve s are uncovered by the movement to the right of a spring-loaded piston l attached to the control rod m. The total area of the outlets from the ducts r<2> is equal to or greater than, the sum of the cross section of the tube i and the total cross section of the air ducts r<5>. Tertiary air is admitted to the mixture as the piston l uncovers the lower end of the venturi. A perforated mixing-chamber k is placed in the path of the mixture stream at the outlet from the venturi. The piston f is permitted to move to the left under the action of the spring q after the closing of the fuel-admission valve e<1> until a nut p contacts with the rear face of crosshead h, thereby admitting air to the engine for braking purposes. The relative times of opening and the exposed areas of the various valves and ports are determined by the adjustment of screws and stops g<1>, k and o, p, n respectively. The piston l is shown in the Figure in the position it occupies when the engine is at rest. During slow running the right-hand edge is at II and at III during acceleration ; it is at IV during braking.
Patent GB-622718-A (GB)
Title: Method of beating or hydration of fibrous cellulose material
IPC: D21B1/12
Filed: 1947-04-02
Abstract: 622,718. Preparation of paper pulp. ANDERSON, H. E. April 2, 1947, No. 8902. [Class 96] Paper pulp from a tank 1 with a sand &c. trap 2 is impelled through a pipe 3 at high speed as by an injector 4, to impinge on grids 6, 8, which may be of stainless steel or stone &c., and may have rounded or knife-edged bars. The delivery end of the pipe 3 may be bifurcated. There may be a succession of tanks 1, each supplying the next in the series. Specifications 21715/12, 208,042, [both in Class 96], 364,708, 459,618 and 572,895 are referred to.
Patent GB-1038469-A (GB)
Title: Improvements in or relating to joints between electrically conducting bodies
IPC: H01R4/04
Filed: 1964-03-03
Abstract: 1,038,469. Direct connections between conductors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 3, 1964 [March 6, 1963], No. 8949/64. Heading H2E. A joint between two electrically conducting bodies, one of which has a plate-shaped part provided with at least one aperture, comprises electrically conductive adhesive between the conducting bodies with further adhesive material extending through the aperture or apertures to form a head or heads of adhesive remote from the contact surfaces. The joint is formed, for example, between a contact strip 1 having apertures 3 and an electroluminescent cell 2, by applying in the soft state conductive adhesive, consisting of ethoxyline resin containing approximately 60% silver powder, and pressing the conductors together so that the adhesive, after hardening, forms heads 4. The apertures, which may be circular or slot-shaped, may be formed in both bodies.
Patent GB-1214136-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: WEBB JOHN
IPC: G21C13/073
Filed: 1967-02-24
Abstract: 1,214,136. Reactor shields. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 23 Jan., 1968 [24 Feb., 1967], No. 9006/67. Heading G6C. In a liquid sodium cooled, fast reactor, the tank containing the core and coolant is closed by a horizontal, top shield which is rotatable through peripheral gearing. Liquid seals are provided at the inner and outer faces of the shield to prevent the loss of the sodium vapour and the inert gas blanket. The shield has an upper layer of concrete or steel shot and a lower layer through the top section of which flows a cooling gas, the bottom section being formed of stainless steel sheeting. The outer face seal is formed with mercury and the lower, or inner, face with sodium. The latter is maintained at a temperature lower than the reactor temperature by being embedded in the steel layer. To prevent leakage through the liquid seals blanket gas is fed into the clearance annulus between the shield and tank at a pressure to cause it to bubble through the liquid into the tank. A step is provided in the cylindrical shield wall to prevent ejection of the shield. A plate is attached to the inner face of shield to prevent frothing at the coolant-blanket gas interface.
Patent GB-102451-A (GB)
Title: Improvements in Corner Pieces, Fillets, or Dust Shields for use in the Corners of Rooms and Window Frames, and for other purposes.
Inventor: RICHMOND HENRY
IPC: E04F19/04
Filed: 1916-06-27
Abstract: 102,451. Richmond, H. June 27, 1916. Dust-shields for corners. - In metal corner-filling pieces formed with a central hole for a screw or nail, the hole c is formed with a countersunk portion pressed out of the body of the metal. Reference has been directed by the Comptroller to Specification 17498/99.
Patent GB-1511452-A (GB)
Title: Base material from which to prepare bone cement
IPC: A61L27/50
Filed: 1976-03-05
Abstract: 1511452 Polymeric bone cements KULZER & CO GmbH 5 March 1976 [14 March 1975] 9037/76 Heading C3V A base material for forming bone cements comprises (a) either (i) a powdered copolymer of methyl methacrylate and methyl acrylate, or (ii) monomeric methyl methacrylate as a major component, and (b) either gentamycin hydrochloride and/or hydrobromide, or a mixture of gentamycin sulphate with NaCI, KCI, NaBr and/or KBr. Actual cements are formed by mixing (1) a base material containing (a) (i) and also a peroxide with antibiotic free monomeric methyl methacrylate containing a reducing agent, or with a base material in which (a) is (ii), also containing a reducing agent, or (2) a base material as above in which (a) is (ii) and containing a reducing agent with antibiotic free powdered copolymer of methyl methacrylate and methyl acrylate or with a base material as above when (a) is (i) and also containing a peroxide.
Patent GB-541374-A (GB)
Title: Improvements in or relating to knitted fabrics and to methods of knitting
IPC: D04B9/46
Filed: 1940-05-23
Abstract: 541,374. Knitting. HEMPHILL CO. May 23, 1940, No. 9122. Convention date, May 25, 1939. Drawings to Specification. [Class 74 (ii)] An embossed effect is obtained in knitted fabric by incorporating elastic threads at selected wales by means of wrapping. The elastic thread is wrapped upon spaced wales and a non-elastic yarn of the same or a different colour may be wrapped on intermediate wales. The wrapping operation may be performed by the machine described in Specification 300,605, [Class 74 (ii)]. The elastic thread may be wrapped so as not to be included in adjacent wales of any course. Tops &c. of garment may be given a ribbed appearance by wrapping with elastic threads at frequent intervals.
Patent GB-191994-A (GB)
Title: An improved potato dibber for hand use
IPC: A01C5/02
Filed: 1922-03-30
Abstract: 191,994. Holmes, A. March 30, 1922. Planting-tools, hand.- A potato dibber comprises two portions B, C pivoted together at E, the portion B having a long handle A and the portion C having an arm D. The dibber is inserted in the ground until the portion C takes up the position shown, the arm D resting on the ground and preventing the portion C from turning when the dibber is opened by moving the handle A to the right.
Patent GB-900477-A (GB)
Title: Hermetically sealed compressors
Inventor: FRANK ARNE
IPC: F25B31/02
Filed: 1961-03-13
Abstract: 900,477. Compressors. TRANE CO. March, 13, 1961, No. 9160/61. Class 8(1). An hermetically scaled reciprocating piston compressor connected by a crankshaft 20, Fig. 1, to an electric driving motor 22 is provided with a discharge muffler 36 which is integral with the cast crankcase 26 and has a closure cap 46 which forms a seat for a mounting spring 38 secured to the housing 12. As shown the compressor comprises three angularly spaced cylinders 16 in parallel arid refrigerant gas is admitted through a filter screen 60 and having cooled the motor 22 traverses an intake muffler 54 and chamber 56 associated with each cylinder and is discharged through an annular chamber 66 to the corresponding discharge muffler 36, 37, 39, Fig. 2. Mufflers 36, 37 discharge through ducts 41, 43 to muffler 39 which in turn discharges through a duct 45 to an outlet 47.
Patent GB-606662-A (GB)
Title: Improvements in or relating to electric contact plugs
IPC: H01R24/58
Filed: 1945-04-13
Abstract: 606,662. Telephone plugs. TELEPHONE MANUFACTURING CO., Ltd., and LOVESEY, H. April 13, 1945, No. 9265. [Class 40 (iv)] [Also in Groups V and XXXVI] A method of manufacturing a telephone or like contact plug, in which plastic insulation is injected between concentric contact elements, comprises moulding a ring 8 of insulating material round the centre contact rod to locate it in the surrounding contact tube during the subsequent injection of the rest of the insulation. The ring 8 is of thermosetting or hightemperature thermoplastic material that will not soften during the latter operation. For the final moulding process, the " ring contact" tube 2 and rod 1 are assembled in an outer contact sleeve 3, the rod 1 being frictionally gripped in the tube 2, by a moulding flash formed on the ring 8 when it is being moulded on the rod. The rod carries a hard insulating washer 10, and a brass collar 11 is forced over the grooves 4 on the projecting end of the rod, and secured by crimping at 12. During moulding, die pins or screws are passed through the terminal holes 7, 14, and the face 16 is roughened and the stepped portion 15 of the tube 2 is tapered to provide a " key " for the moulding compound. After injection of the insulation, the plug is cleaned and machined to standard profile, Fig. 4.