baber/WOPTO huggingface dataset:
Patent GB-289585-A (GB)
Title: Improvements in the manufacture and production of ketones of the anthracene series
IPC: C07C49/80
Filed: 1927-02-16
Abstract: 289,585. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 16, 1927. Anthracyl-and anthraquinonyl-alkylketones. - Anthracylalkylketones are produced by the treatment of anthracene or its derivatives with a fatty acid halogenide in the presence of aluminium chloride, ferric chloride, zinc chloride or other agents facilitating the removal of hydrochloric acid. The products yield on oxidation the corresponding anthraquinonylalkylketones. By using mild conditions for the condensation the meso alkylanthracylketones are produced, whereas with stronger conditions mixtures of a and # derivatives are usually obtained. In examples. methyl- and ethyl-anthracylketones are produced by treatment of anthracene, with acetyl chloride and propionyl chloride, respectively in the presence of benzene and nitrobenzene as diluents and aluminium chloride. The reaction is effected whilst cooling and the mixture of alpha and # derivatives which is obtained is separated by fractional crystallization. Oxidation with chromic anhydride in glacial acetic acid solution gives the corresponding anthraquinonylalkylketones. When using carbon disulphide as a diluent in the condensation of acetyl chloride with anthracene, a diacetylanthracene is produced which is subsequently oxidized to the corresponding anthraquinonyl derivative. In a further example meso methylanthracylketone is produced by conducting the condensation of the appropriate components in the presence of benzene at a temperature below 0 C. By further treatment with aluminium chloride at a higher temperature, 2- methylanthracylketone is obtained.
Patent GB-293661-A (GB)
Title: A method of preparing white paint or pigment and the paint or pigment prepared thereby
IPC: C09C1/04
Filed: 1928-02-13
Abstract: 293,661. Williams, L. Feb. 13, 1928. Paints; pigments.-A white pigment is made by mixing and grinding together in or about the stated proportion by weight, 60 parts of zinc oxides, 2 parts of sulphur, 1¢ parts of sodium carbonate, 1 part of sodium chloride, ¢ part of ultramarine blue, and preferably 1 part of barium sulphate, heating the mixture in a closed, chemically inactive, retort, and cooling and grinding the product. The heating may be effected in a porcelain crucible up to about 500‹ C. The pigment may be ground into a vehicle such as linseed oil, and by the addition of a drier and thinning means, formed into a paint.
Patent GB-1284644-A (GB)
Title: Improvements in and relating to seats
Inventor: LACEY R
IPC: A47C1/025
Filed: 1970-01-30
Abstract: 1284644 Seat-back adjustments UNIVERSAL OIL PRODUCTS CO 19 April 1971 [30 Jan 1970] 4520/70 Heading A4J The pivoted back 2 of a chair is connected to the seat-base at each side by an arm 6 pivoted to the latter and connected to the back 2 by a rack and pinion arrangement whereby the inclination of the back can be adjusted, the arrangement being such that pressure of the occupant against the back force the pinion into locking engagement with the back. The connections of the arm to seat and back may be inter-changed. In the form shown, the rack 8 is formed on the rear wall of a slightly arcuate slot in the arm 6 and the pinion is constituted by two pins 30 fixed on a diameter of a horizontal shaft 10 carried in bearings 12 on the seat-back and provided at each end with a knot for hand operation. Play between the pinion and the front wall of the slot is taken up by an elliptical cam 32 mounted on the shaft 10 and engaging a surface, parallel to the slot, on the arm 6. In a modification, Fig. 2 (not shown), the pinion is threelobed and the play is taken up by the third lobe.
Patent GB-974741-A (GB)
Title: Improvements in and relating to the detection of faults in electrically insulating or semi-conducting material, such as the insulation of electric cables
Inventor: BROWN GEORGE ARTHUR
IPC: G01R31/02
Filed: 1961-02-07
Abstract: 974, 741. Testing cable insulation. OKONITE CO. Feb. 7, 1961, No. 4522/61. Drawings to Specification. Heading G1U. In order to test the uniformity of the insulation of a cable it is moved at a constant speed through an electrode in which arrangements are provided to ionize the air within the hole through which the cable is passing so that a virtually complete contact is made with the surface of the cable insulation. This may be achieved by including within the hole a radio-active isotope material, applying an ionisation potential or a combination of both,or,using ultra-violet light. One electrode may be used in conjunction with the central conductor to indicate a dead leak or a spaced pair may be used to indicate surface leakage or check uniformity of cable capacity and insulation resistance. The cable conductor is earthed and A.C. or D.C. may be connected to the electrode, the presence of a leak being indicated by measuring the current fed to the electrode. In a system using an ionising potential the electrodes may be flat plates.
Patent GB-169662-A (GB)
Title: Improved gangway
IPC: B63B27/14
Filed: 1921-02-08
Abstract: 169,662. Temple, G., and Einarsson, O. Feb. 8, 1921. Landing-gangways. - A gangway of the type having a wheeled platform carrying an adjustable hinged gangway proper, is adjusted by rack-and-pinion mechanism operable by crank. handles 6 through pinion reduction gearing 7, 8, 5, the racks 4 constituting struts supporting the free end of the gangway 3.
Patent GB-539521-A (GB)
Title: Improvements in and relating to drum presses
IPC: B30B11/00
Filed: 1940-03-12
Abstract: 539,521. Drum presses. HOOLHORST, C. P. E.. March 12, 1940, No. 4627. [Class 87 (ii)] [Also in Group I] In a press comprising eccentrically-arranged inner and outer rotary drums 1, 7, the space between the drums is divided into compartments by partitions 13 which move with the drums and are supported at both ends so that they can turn relatively to the drums. As shown the partitions have hinges in the drum 1 and bearings through which they can slide into recesses 14 in the drum 7. The drum 7 is supported and guided by rollers 10, 8, on a frame 9 and rotated by pinions on a shaft 6, the pinions engaging with toothed rims 11. The drum 1 is mounted on a shaft 2 which is driven by gear wheels 4, 5 from the shaft 6. The press chamber is closed at the top and bottom respectively by stationary plates 16, 17 and the material under treatment is supplied by a screw 15 through an opening in the upper plate. Outside the pressing zone the space between the drums is open at both top and bottom and the pressed material is discharged at the bottom on to a chute 24 either by hand or by a device driven from the shaft 6. When the press is for use in expressing liquid the operative surfaces of the drums have grooves 19 covered by perforated plates 18 and the expressed liquid passes from the grooves to a receptacle 21. It is stated that the partitions 13 may be formed of two halves telescopically jointed together and connected to the drums so that the partitions can pivot at both ends.
Patent GB-183883-A (GB)
Title: Improvements in and connected with boots and shoes
IPC: A43C15/16
Filed: 1921-02-10
Abstract: 183,883. Clayden, F., and Frece, J. de. Feb. 10, 1921. Inset wearing-parts.-Inset wearing-parts for soles and heels of shoes comprise a plurality of studs A formed with enlarged inner ends B and metal sleeves E formed with serrated inner edges adapted to be spread outwards into the leather when driven against the enlarged ends of the studs.
Patent GB-557262-A (GB)
Title: An improved furnace for the electrical melting and/or heating of aluminium and alloys thereof, and for the recovery of the metal from aluminium dross residues
IPC: C22B21/00
Filed: 1942-04-10
Abstract: 557,262. Melting aluminium and aluminium alloy. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd., PRITCHARD, P., and TAYLOR, G. O. April 10, 1942, No. 4721. [Class 82 (i)] [Also in Groups XI and XXXVI] Aluminium and its alloys are melted in contact with a fused mixture of salts heated by the passage of alternating current, said mixture containing cryolite to dissolve alumina and being of lower density than the metal. A furnace chamber d of magnesite is surrounded by sand c, heat insulation b and a steel casing a, and has a graphite sole plate e with a tap-hole h, and an annular electrode or plurality of electrodes i to which alternating current can be supplied. Additional electrodes p, m are provided in a recess in the upper part of the furnace and are connected to a direct current supply whereby alumina dissolved in the cryolite is electrolysed and prevented from accumulating and being deposited therefrom. Liberated aluminium falls from electrode p to the bottom of the furnace. In operation, molten electrolyte is charged into the furnace above the electrode i and is kept molten by the passage of current, or the molten bath may be gradually accumulated and melted by additional electrodes above the sole e until it reaches the upper electrode i. The electrolyte may be sodium chloride 60 parts and cryolite 40 parts; or sodium chloride 60 parts, potassium chloride 30 parts, and cryolite 10 parts. Metal to be melted is placed on a grid k, and on melting falls to the bottom. In a modification Fig. 2 (not shown), the heating electrodes are arranged in opposite walls, and the metal is charged on to a sloping hearth instead of a grid.
Patent GB-1132023-A (GB)
Title: Improvements in polymerization catalyst
IPC: C03C17/32
Filed: 1966-02-03
Abstract: 1,132,023. Ternary catalysts for olefin polymerization. UNIROYAL Inc. 3 Feb., 1966 [19 March, 1965], No. 4728/66. Heading C3P. A catalyst composition is formed by the interaction of (1) a vanadium compound, (2) an organometallic selected from: (a) RMgX, (b) LiAlR 4 , and (c) R A Al 2 X B , where R is hydrocarbon, X is halogen, A is 2 to 6, B is 0 to 4, and A+B = 6, said components (1) and (2) being reacted in a mole ratio of 1 : 50 to 1 : 200, and (3) at least 50 moles per mole of (1) of an organic nitro compound, at least one of the components (1) and (2) containing at least one halogen atom and the number of moles of (3) being equal to or less than the number of gram atoms of multivalent metal in (2). The catalysts may be used for olefin polymerization, particularly the production of copolymers of ethylene and propylene, and terpolymers of these compounds with a diene e.g. dicyclopentadiene which are amorphous, sulphur-vulcanizable rubbers. Solvents for the polymerization are aromatic or aliphatic hydrocarbons, chlorobenzene, and tetrachloroethylene, while those used in the examples are benzene and n-heptane. In the examples, ethylene and propylene are copolymerized using (C 2 H 5 ) 3 Al 2 Cl 3 /VOCl 3 /C 6 H 5 NO 2  or (CH 3 ) 2  CH.NO 2 . Reference has been directed by the Comptroller to Specification 1,000,348.
Patent GB-1065942-A (GB)
Title: A box
Inventor: MEYER HANS
IPC: B65D6/26
Filed: 1965-02-04
Abstract: 1,065,942. Boxes. APPARATE UND METALLBAU WALD A.G. Feb. 4, 1965, No. 4837/65. Heading B8P. [Also in Division E2] A box comprises a framework made of sections (1, 2, 3) which are connected in three mutually perpendicular directions by a corner joint 4 with projecting arms (4<SP>1</SP>, 4<SP>11</SP> ,  4<SP>111</SP>). The sections are each formed with set-back flanges which accommodate the folded edge (5) of a wall panel (6), the panel being maintained in contact with the framework by spring clips (7). The panels may be lined with heat or sound insulation (10). Fig. 3 (not shown). indicates a framework section with a rounded outer edge and accommodating a square nut and bolt for fixing items thereto.
Patent GB-705535-A (GB)
Title: Improvements in chairs, settees and the like
Inventor: SIMMONS LOUIS
IPC: A47C7/32
Filed: 1952-02-25
Abstract: 705,535. Chairs &c. MORRIS BROS. & SIMMONS, Ltd. Feb. 9, 1953 [Feb. 25, 1952], No. 4881/52. Classes 52(1) and 52(4) In a chair, settee, or the like, the seat frame 1 is pivoted at 2 to the front of the main frame and is suspended at its rear by springs 3 or the like from a bar 6 secured to the upper crosswise rail 4 of the chair back. Springs 3 may support the back cushion or upholstery. The frame 1 is fitted with transverse springs enclosed either in a common housing or in individual envelopes 9a. Arms 8 may be springy. According to the Provisional Specification, 'the springs 3 may be pneumatic or hydraulic and the pivot at the front of the seat may be replaced by a spring suspension.
Patent GB-863532-A (GB)
Title: Fluid coupling
IPC: F16D35/00
Filed: 1959-02-12
Abstract: 863,532. Hydraulic couplings. SCHWITZER CORPORATION. Feb. 12, 1959 [Feb. 17, 1958], No. 4902/59. Class 69 (2). An hydraulic coupling for transmitting torque from an engine crankshaft 10 to an accessory, such as a fan, comprises a housing 21, 22 having walls spaced from the side surfaces 19 and rim 18 of a rotor 11, and fluid circulating means 13, 17, 41 and 42 on the rotor and housing for maintaining a film of fluid between the rim of the rotor and the housing to lubricate the surfaces and damp vibrations transmitted to the rotor while transferring torque between the rotor and the housing by means of the shearing action of the fluid. The thickness of the film of fluid is between 0.002 inch and 0.0035 inch at the rim 18 and between 0.0035 inch and 0.0085 inch at the side surfaces 19. The rotor is mounted on the crankshaft of the engine and extending through the rotor are passages 13, 14 which, together with a spiral groove 17 on the rim and tangential slots 41, 42 in the rotor or housing, form the fluid circulating means, the fluid moving toroidally when the coupling is transmitting torque. The toroidal movement of the fluid and fins 36 assist in cooling the fluid. The housing part 22 is in the form of a piston urged towards the rotor by a spring 31, 32. During operation, as the speed of the rotor increases, the centrifugal force of the fluid moves the piston 22 outwardly to increase the space between the walls of the housing and the rotor, and hence increase the slip therebetween. The accessory is driven by V-belts engaging grooves 34 in the housing. Seals 37, 38 serve to support the housing when the coupling is stationary, the fluid then being at a level 44. The surfaces 18, 19 of the rotor may be given an anti-friction coating.
Patent GB-866744-A (GB)
Title: Improvements in or relating to resilient webbing
Inventor: HURLSTON EDWARD HENRY
IPC: D03D15/56
Filed: 1957-02-14
Abstract: 866,744. Webbing. DUNLOP RUBBER CO. Ltd. Feb. 4, 1958 [Feb. 14, 1957], No. 5030/57. Class 142(4) [Also in Group XXV]. Resilient webbing comprises a strip of woven fabric having warp threads which are laid parallel to the length of the strip and have an extensibility of over 25% and a residual extension of less than 5% after removal of a load of 50 lb. per inch width. The fabric, which has an open weave, e.g. a leno, mode leno, open plain or twill weave, may be embedded in natural or synthetic rubber, e.g. a butadiene/styrene or butadiene acrylonitrile copolymer, a polychloroprene, or a plasticized polyvinyl or polyvinylidene chloride. The rubber may be compounded with reinforcing ingredients and pigmenting materials. The warp threads may be of nylon, polyethylene terephthalate, or a copolymer of vinyl chloride and acrylonitrile and the weft threads may be of cotton, rayon, nylon or polyethylene terephthalate.
Patent GB-1087581-A (GB)
Title: Diethylaminoethyl cellulose
Inventor: TOMS BRYAN ATKINSON
IPC: C08B11/145
Filed: 1964-02-06
Abstract: Cellulose containing deithyl amino ethyl substituent groups is prepared in a two-stage pro cess by reacting alkali cellulose with amino ethyl hydrogen sulphate to form amino ethyl cellulose and subsequently reacting the amino ethyl cellulose with diethyl sulphate in the presence of an "acid binder " is defined as a substance capable of removing an acid from the reaction, i.e. a base, for example an alkali metal hydroxide such as sodium hydroxide.  The alkali cellulose and amino ethyl hydrogen sulphate preferably are reacted in a changing atmosphere at a pressure less than atmospheric, for example at a temperature less than 100 DEG  C. and at a pressure of between 3 and 7 p.s.i.; in order that the amino ethyl cellulose shall have a high nitrogen content a temperature of between 60 DEG and 70 DEG  C. and a pressure of between 5 and 7 p.s.i. are preferred.  The preparation of the diethyl amino ethyl cellulose, which may be used as an ion exchange material and as a material for blending with cellulose, is fully described (together with nitrogen content and affinity for dyes) in examples.
Patent GB-1366931-A (GB)
Title: Dihydrocodeine manufacture
IPC: C07D489/02
Filed: 1971-02-22
Abstract: 1366931 I-Dihydrocodeine MACFARLAN SMITH Ltd 10 Feb 1972 [22 Feb 1971 27 Aug 1971] 5081/71 and 40245/71 Heading C2C Purified 1-dihydrocodeine is obtained by (a) catalytically hydrogenating 1-dihydrocodeinone in a liquid medium using a platinum oxide or supported platinum metal catalyst (and optionally in the presence of a base) to produce a solution of crude 1-dihydrocodeine, (b) removing the catalyst from the solution and either (i) passing the solution of the crude 1-dihydrocodeine through an anion exchange resin of quaternary ammonium type in the hydroxide form, or (ii) isolating the crude 1-dihydrocodeine, dissolving the crude 1-dihydrocodeine in a waterimmiscible solvent and extracting the resulting solution with aqueous alkali, and recovering the purified 1-dihydrocodeine, if desired, in salt form, e.g. tartrate.
Patent GB-1121088-A (GB)
Title: Improvements in or relating to zinc oxide production
Inventor: DERHAM LESLIE JACK
IPC: C01G9/02
Filed: 1966-02-04
Abstract: <PICT:1121088/C1/1> Zinc oxide of colloidal particle size (0.05-0.15m ) is prepared by impinging a stream of zinc vapour with a stream of molecular oxygen-containing gas, the directions of the two streams being substantially at right angles.  The molecular oxygen-containing gas may be air, and may be preheated to 100-350 DEG  C.  The figure shows a suitable apparatus in which 1 is a source of zinc vapour, and the vapour is led through the duct 2 to the vertically elongated retort 3, and in this retort the air enters through 4 and impinges upon the zinc vapour in a substantially right angular direction.
Patent GB-867967-A (GB)
Title: Improvements in or relating to the polymerization of formaldehyde
IPC: C08G2/00
Filed: 1960-02-12
Abstract: Anhydrous formaldehyde is polymerized in an inert anhydrous organic solvent using a carbodiimide as catalyst.  Specified carbodiimides are diethyl, diisopropyl, dicyclohexyl, methyl-n-propyl, dibenzyl, diphenyl, p, p1-ditolyl, and dinaphthyl carbodiimides, tetramethylene #x, #x1-bis-tert-butyl and hexamethylene #x, #x1-bis-tert-butyl carbodiimides, methyl-tert-butyl, tertiary butyl isopropyl and isopropyl benzyl carbodiimides.
Patent GB-758951-A (GB)
Title: Improvements in or relating to type holders
Inventor: AUDSLEY ALAN KEITH
IPC: B41F27/06
Filed: 1954-02-22
Abstract: 758,951. Printers' composing appliances. DAPAG (1943), Ltd. Feb. 4, 1955 [Feb. 22, 1954], No. 5179/54. Class 100 (3). Composing-sticks.-A type holder comprises one or more slots for the reception and retention of type elements provided with T-shaped heads, arranged to retain the type elements in the or each slot by spring pressure acting on the elements, parts of the holder forming the sides of the slot being provided with extension members arranged to engage a member to which the type is to be transferred to bring the appropriate slot on the type holder into alignment with the slot on said member, whereupon the spring pressure is released so that the type may be slid from one slot to the other. A type holder is formed from a single piece of metal which is pressed to form a channel, the central web of which is provided with a slot 1, the sides of which diverge slightly from the open end, and in which type elements with T-shaped heads are loosely held near the closed end and can escape from the open end only if the two prongs of the fork formed by the slot are lightly forced apart. The side webs of the channel have divergent extensions 2, and on insertion of these into slots in a printing roller adjacent a slot into which the types are to be transferred, the prongs are forced apart to allow the transfer to take place. According to the Provisional Specification the holder may comprise a back plate to which are secured a number of parallel spring fingers forming a series of slots, which fingers press on the plate to retain the type, and each having an extension to fit into alternate slots on the printing roller. The type is released by pressing on the plate to raise the spring therefrom.
Patent GB-725696-A (GB)
Title: Improvements in mounting strips for mounting windows, particularly wind-shields in automobiles and other vehicles
IPC: B60J10/00
Filed: 1953-02-24
Abstract: 725,696. Glazing means. ERIKSSON, S. A. Feb. 24, 1953 [Feb. 29, 1952], No. 5180/53. Class 20 (3). In a glazing strip for mounting two spaced window panels 6, particularly a vehicle windscreen, having at one side a longitudinal groove 8 to receive a flange 1 of body panels surrounding the window opening, and at the diametrically opposed side a pair of longitudinal grooves each of which receives a panel 6, the latter grooves being defined by a common flange 7 integral with the body portion 2 of the strip and two flanges 9, 10 projecting therefrom, each flange 9, 10 has a wedging bead 5 at one end to engage a similarly shaped longitudinal recess in the portion 2, the wedging beads 5 being so shaped that they also tend to press together the groove 8 receiving the flange 1. Reference has been directed by the Comptroller to Specification 639,629.
Patent GB-1448189-A (GB)
Title: Intake filter for internal combustion engines compressors and  other air-intaking machaines
IPC: F02M35/10
Filed: 1975-02-07
Abstract: 1448189 Pipe couplings FILTERWERK MANN & HUMMEL GmbH 7 Feb 1975 [15 May 1974] 5227/75 Heading F2G A pipe socket section 4 and a pipe spigot section 7 connected by insertion therein, are secured against twisting by an axially parallel tongue 12 and groove 10 connection, and against displacement by a stud 18 located in a hole in the wall 5 of the socket section 4 and a hole in the wall 9 of the spigot section 7. Sections 4, 7 and the stud 18 are made of synthetic plastics material. The socket section 4 may be made of such material, e.g. non-reinforced polypropylene, having a relatively high thermal coefficient of expansion compared with the material, e.g. fibreglass-reinforced polyamide, of the spigot section 7 and stud 18. The spigot section 7 may be provided on its outer circumference with an annular rib 27 including a shoulder 28 against which the end of the socket section 4 abuts. The coupling forms part of an air intake filter for internal combustion engines, compressors and other air intaking machines, the socket section 4 being rigidly connected, e.g. moulded in one piece, with a filter housing 2. The coupling may employ more than one tongue and groove connection, stud connections being made in these regions.