baber/WOPTO huggingface dataset:
Patent GB-975062-A (GB)
Title: Improvements in laminated structural materials
IPC: D04H13/00
Filed: 1961-02-01
Abstract: 975,062. Laminates. F. F. JARAY. April 9, 1962 [Feb. 1, 1961; March 25, 1961], Nos. 3750/61 and 11000/61. Heading B5N. [Also in Division B7] A structural material, e.g. for making tanks or boats or for use as roofing, partitioning, or other panels, comprises a number of layers of coarse open weave fabric, e.g. of glass, asbestos, jute, sisal, polyethylene terephthalate or nylon fibres, impregnated and bonded with synthetic resin in sufficient amount to effect bonding while leaving a major proportion of meshes open. The fabric layers may be interleaved with paper or fabric layers and/or faced with reinforcing layers such as glass fibre-reinforced thermosetting resin. The resin used may be thermosetting, e.g. polyester or epoxy resin, and may be used without accelerator enabling the fabric layers to be impregnated and stored in bulk, the curing of the resin being completed by heating, and/or addition of curing agent to the final product. The pre-cured fabric sheets may be shaped before lamination, e.g. to produce curved panels. Alternatively, thermoplastic resins may be used. In examples: (a) a tank is made by winding polyester resin-impregnated glass rovings helically around a revolving cylindrical mandrel, applying in succession layers of open mesh sisal fabric and polyester resin-impregnated paper, applying an outer layer of glass rovings, allowing the resin to cure, removing the laminate from the mandrel and fitting ends of similar laminate material. The wall of the tank may contain dielectric material arranged to give an electric signal in the event of leakage due to the inner layer of resin/glass rovings being pierced. (b) A boat hull is made by laying up chopped glass strands impregnated with epoxy resin in a female mould and building up thereon successive layers of epoxy resin impregnated and unimpregnated sisal open weave fabric having meshes freed from resin (when applied) by use of air jets, the fabric layers being preferably interleaved with resincoated paper, or fabric such as muslin. The resin may be accelerator-free, the fabric layers being taken from store, shaped before application and reactivated with accelerator. In this case the resin is cured by the exothermic heat developed during curing of the outer glass fibre skin and the similar skin which is applied on the inner side of the laminated hull.
Patent GB-588392-A (GB)
Title: Improved methods of producing electrical insulation on electrical apparatus
IPC: H01B3/30
Filed: 1945-02-14
Abstract: Compositions used for electrical insulation are prepared by polymerizing a mixture of a castor oil-a b -dicarboxylic acid ester and a vinyl monomer in the presence of a catalyst.  Drying oils such as perilla oil, linseed oil, soya bean oil, cottonseed oil and cashew nut shell oil, and non-drying oils such as peanut oil may also be present.  The preferred acid is maleic anhydride, but this may be replaced wholly or in part by fumaric acid, citraconic acid, or their anhydrides or by maleic acid.  The preferred vinyl monomer is styrene, but methyl-styrenes, nuclearly chlorinated styrenes, distyrene, vinyl acetate, methyl vinyl ketone, acrylic nitrile, methyl methacrylate and allyl esters such as diallyl phthalate may also be used.  Tung oil, oiticica oil and alkyd resin may also be present.  Benzoyl peroxide is the specified catalyst, but other peroxides or oxonides can be used. Fillers such as mica, asbestos, silica and glass, inhibitors such as hydroquinone and conducting solid material such as carbon or graphite may be added.  In examples, a mixture of styrene, hydroquinone, mica and benzoyl peroxide is heated in the presence of (1) castor oil-maleate resin, (2) castor oil-linseed oil-maleate resin, (3) castor oil-linseed oil-peanut oil-maleate resin.
Patent GB-707798-A (GB)
Title: Improvements in holders for electric cartridge fuses
IPC: H01H85/62
Filed: 1952-02-13
Abstract: 707,798. Fusible cut-outs. CRABTREE & CO., Ltd., J. A., and HILL,W. E. Feb. 9, 1953 [Feb. 13,1952], No. 3777/52. Class 38 (1) A cartridge fuse holder comprises a resilient split metal sleeve a (e.g. phosphor bronze) which is held in a metal collar c, mounted in an insulating holder g, by engagement of notches b cut in the sleeve with indentations d in the collar. The sleeve is of rectangular shape, the sides being slightly curved so that when the end cap of the fuse is inserted, the sides of the sleeve are pressed outwards against the collar c. A metal ring k to contact the flat face of the cap e is retained in the collar by the sleeve a. In Figs. 5 and (i a castellated wire spring h is sprung into the collar c behind indentations i so that horizontal portions h<SP>2</SP> form chords until pushed outwards by inserting the fuse end cap.
Patent GB-1170191-A (GB)
Title: Improvements in or relating to Electrical Machines
Inventor: SHAKARYAN JURY GEVONOVICH
Filed: 1968-01-25
Abstract: 1,170,191. Control of A.C. motors; dynamoelectric machines. VSESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT ELEKTROENERGETIKI. 25 Jan., 1968, No. 3891/68. Headings H2A and H2J. An asynchronized-synchronous machine 1 having a polyphase stator and a rotor is automatically controlled by supplying its field windings on the rotor with quadrature excitation components which vary with the slip frequency respectively according to a sine and cosine law. The machine 1 is coupled to a three phase tachometer generator 3 with permanentmagnet poles whose number is equal to that of the machine 1. The stator windings of the generator 3 are connected to a unit 6 which determines the amplitudes of the field-control signals for the machine 1, the output of the unit 6 being supplied to a differentiating unit 7. A phase-shifter 8 is connected to mains 9 and has its output connected to a unit 11 which determines the frequency of the field-control signals, and to which the output of the unit 7 is also supplied. The unit 6 comprises integrators 12, 13 in the form of R.C. networks, an inverter 14, and summing amplifiers 15, 16. The amplifiers are associated with ganged potentiometers (23-26 and 27, 28) for setting the amplitudes of the field-control signals, Fig. 3 (not shown). A further potentiometer (29) converts the three-phase output of the generator 3 into the two signals which are applied respectively to the units 12 and 13. The unit 7 incorporates differentiators 30, 31, in the form of R.C. networks, supplied from the amplifiers 15, 16. An inverter 32 and summing amplifiers 33, 34 are connected to the differentiators 30, 31. The amplitudes of the fieldcontrol signals are further controlled by simultaneous adjustment of potentiometers (40-43) forming part of the unit 7, Fig. 4 (not shown). The unit 8 comprises an electro-mechanical phase-shifter with stator windings (45) connected to the main 9, and rotor windings (46) connected to transformers (47, 48) whose secondary windings (49, 50) have earthed neutrals, Fig. 5 (not shown). The unit 11 comprises multipliers 51-54 connected to summing amplifiers 55, 56 and inverters (57, 58) which invert the signals from the units 33, 34, Fig. 6 (not shown). The units 51-54 multiply the voltages derived from the units 33, 34 and 8, the outputs from the amplifiers 55, 56 being applied to the excitation element of the machine being controlled.
Patent GB-467746-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H33/96
Filed: 1936-02-08
Abstract: 467,746. Oil - break switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 8, 1936, No. 3894. Convention date, Feb. 8, 1935. [Class 38 (v)] In a circuit-breaker of the kind in which a differential piston actuated by the pressure generated by the arc forces a stream of extinguishing liquid in contact with the arc, the stationary contact 1 is enclosed in a compartment 41 which is separated from the chambers 12, 13 bounded by the differential piston 11 by an insulating partition 42 provided with an opening 43 for the passage of the movable contact 15. The latter is provided with a bore terminating in the chamber 12, and on separating the contacts the pressure generated by the arc in the chamber 41 is transmitted through the movable contact and apertures 16 to the chamber 12. As soon as the movable contact has moved above the aperture 43, the piston forces a stream of liquid from the chamber 13 through the aperture. The contact 15 passes through an aperture 14 in the piston, and if the arc still persists when the tip of the contact reaches this aperture, a further extinguishing action is obtained by a stream of liquid passing from the chamber 13 to the chamber 12 through the aperture 14. The movable contact is operated through a rod 35 and lever 34, and is guided by a pin 32 screwed into the cap 5 of the extinguishing chamber. Spring-controlled valves 18, 24 are provided to relieve excess pressures in the chambers 12 and 41.
Patent GB-578012-A (GB)
Title: Improvements in and relating to the curing or vulcanisation of chloroprene-type synthetic rubber-like materials
IPC: C08K5/00
Filed: 1943-03-11
Abstract: Synthetic rubber, obtained by the partial polymerization of 2-chlorobutadiene-1 : 3 and its homologues or mixtures of these compounds with minor proportions of other polymerizable products, as described in Specifications 387,340, 387,363 and 461,279, 468,693, 488,213, 494,752, 497,420, 497,421, 497,638, 497,706, 504,466 and 523,208, [all in Group IV], is vulcanized by adding an additive compound of an anhydrous halide of boron or a divalent or polyvalent metal, which normally possesses scorching properties, with an organic nitrogenous base, but excluding hydrazine, the organic compound being chosen so that the additive compound is non-scorching.  The halide may be of aluminium, antimony, boron, cadmium, chromium, cobalt, copper, iron, lead, manganese, nickel, tin or zinc, and it may be combined with an aliphatic or aromatic amine, amide, or thioamide. The following compounds are listed as suitable, the numbers in brackets indicating the number of mols. of the compound to one of halide: zinc chloride and acetamide (1), aniline (2), benzidine (1), betaine (2), cyclohexylamine (2), 4-41-diamidodiphenylmethane (1), di-o-anisidine (1), diphenylguanidine (2), diphenyl-p-phenylenediamine (2), diphenylthiourea (0.5), 4-41-dithioureidodiphenyl (3), diureidodiphenyl (1), ethylcyclohexylamine (2), ethylenediamine (1), hexamethylenetetramine (2), melamine (2), phenylbiguanide (0.5), phenylthiourea (0.5), quinoline (1), sarcosine (1), thiourea (2), o-tolidine (1), o-toluidine (2), triethanolamine (1), and m-xylidene (2); zinc bromide and ethylenediamine (3), pyridine (2), and thiourea (2); antimony trichloride and aniline (3), pyridine (3), quinoline (1), and thiourea (3); antimony pentachloride and aniline (3); antimony tribromide and aniline (3); aluminium tribromide and aniline (1); stannous chloride and pyridine (1), and thiourea (2); stannic chloride and aniline (2), dimethylaniline (2), and pyridine (2); ferrous chloride and acetamide (2), benzidine (2), 4-41-diaminodiphenylmethane (2), di-o-anisidine (1), diphenylguanidine (0.3), dithioureidodiphenyl (1), ethylenediamine (2), melamine (1), o-, m- or p-phenylenediamine (2), thiourea (4), and o-tolidine (1); and ferric chloride and thiourea (4). Specification 531,721 also is referred to.
Patent GB-1221513-A (GB)
Title: Transport container
IPC: B65D21/02
Filed: 1969-01-23
Abstract: 1,221,513. Transport containers. PLASTIC INDUSTRIE VAN DAALEN N.V. 23 Jan., 1969 [25 Jan., 1968; 12 Feb., 19681, No. 3988/69. Heading B8P. A thin-walled plastics transport container having a bottom and at least four upstanding walls has a detachable supporting face which is adjacent each of at least two opposite walls to support the bottom of a similar container stacked thereon, is below the upper edges of the walls and has, on three of its sides, upstanding wall parts bent over to engage the upper edges of the container walls. As shown in Fig. 4, the container comprises a bottom 20 having discharge apertures 21, walls 22, 23 which may be profiled, bending over into portions 26 at their upper edges which receive similarly bent over portions 30, 31 &c. of a cover 29. The cover 29 has a recess 33 lower than the upper edges of walls 22, 23 and the longitudinal walls 23 may be cutaway at 28 for ventilation and inspection of contents. The cover may alternatively have an oblong supporting face (10, Fig. 2, not shown) and a long wall 12 and short end walls (11, 13), two such members forming the support (Fig. 1, not shown). The recess 33 of the cover 29 may have an aperture (Fig. 5, not shown).
Patent GB-1249191-A (GB)
Title: Improvements on or relating to the coating of articles with plastics material
Inventor: MCKAY PETER HENRY
IPC: B05C3/10
Filed: 1969-01-23
Abstract: 1,249,191. Endless conveyers. PLASTIC COATINGS Ltd. 22 Jan., 1970 [23 Jan., 1969], No. 3991/69. Heading B8A. [Also in Division B2] An endless conveyer has a plurality of article holders 19 hingedly attached thereto each article holder comprising an elongate arm pivoted at one end to the conveyer and having a plurality of magnets at the other end to carry metallic objects. The articles are fed to the holders by a double conveyer 46 one endless band of which is located at either side of the conveyer 4. Each band has teeth 47 which are spaced at the same distance as the magnet pairs 29a, 29b on the article holders. The ends of the holders are located vertically by the magnetic field of two fixed strip magnets. The articles 50 are thus fed in a vertical position and before being heated the article holder is moved through 90 degrees. The article holder 50 is fixed at 25 to the conveyer 4 and has an arm 26 pivoted thereto and a cam follower roller 28 on the arm. Thus a cam 7 (Fig. 7) similar to cam 30 (Fig. 3) causes the arm 26 to rotate until plate 27 and thus the article is in the horizontal plane. A cam 8 similar to cam 31 allows the holder to resume its original orientation. After a sequence of operations the holder is allowed to rotate until the article is below the level of the conveyer and the article is removed. A cam surface 13 then lifts the holder so that it is in a position to receive two more articles.
Patent GB-868310-A (GB)
Title: A dispenser for liquid disinfectant, deodorant, detergent, soap or the like
IPC: A47K5/122
Filed: 1958-02-07
Abstract: 868,310. Liquid dispensers. GILL, R. S. Jan. 30, 1959 [Feb. 7, 1958], No. 4005/58. Class 131. [Also in Groups I and VI] A receptacle for liquid disinfectant, detergent, deodorant, soap &c. has means for its attachment to a sink washbasin or bath and a discharge pipe for directing the liquid into the overflow or sink by the application of hand pressure to the receptacle. For this purpose the receptacle is made of resilient material (rubber, plastic &c.). Alternatively a rigid receptacle is provided with a resilient filler cap or with a tubular filler opening and piston. As shown in Figs. 1 and 2 a receptacle of resilient material has a discharge pipe b and attaching lugs c. The pipe may have a screwed stopper h and the receptacle can be filled through the pipe before sale. Alternatively the receptacle has a filler plug f carrying a rod e and the plug may include a small collapsible chamber g. One or more attaching sucker cups d may be provided. Various methods of attaching the receptacle are described. In a modification the discharge pipe forms part of a rotatable stopper. The receptacle may be filled with water and a solid rod of disinfectant carried by the stopper.
Patent GB-220008-A (GB)
Title: Improvements in the machines for dividing dough
IPC: A21C5/00
Filed: 1923-02-10
Abstract: 220,008. Hodgson, J. B. Feb. 10, 1923. Stream-cutting machines; feeding materials.- In dough-dividing machines, the dough is placed in an inverted conical hopper a fitted with an open conveyer screw d the outer edges of which conform to the inner surface of the cone and which extends substantial the full length thereof. The dough is forced' through an opening c fitted with a die-plate w and is severed by a rotary knife 2.
Patent GB-1081827-A (GB)
Title: Improvements in or relating to a floating zone process
IPC: C30B13/30
Filed: 1966-01-28
Abstract: 1,081,827. Zone-melting. SIEMENS-SCHUCKERTWERKE A.G. Jan. 28, 1966 [Jan. 29, 1965], No. 4038/66. Heading B1S. A molten zone is passed upwards through a vertical rod of silicon from a seed so as to produce a rod of progressively increasing diameter over most of its length. The increase in rod diameter may be 1/200 to 1 unit per unit length. The speed of travel of the molten zone may be 1-5 mm/min. The lower rod holder may be rotated while the upper rod holder is moved towards it.
Patent GB-548207-A (GB)
Title: Improvement in brakes
IPC: F16D65/22
Filed: 1941-03-25
Abstract: 548,207. Brakes. BENDIX AVIATION CORPORATION. March 25, 1941. No. 4039. Convention date April 18, 1940. [Class 103 (i)] A brake operating device adapted to apply balanced forces to a pair of shoes within a drum comprises a pair of levers interconnected at their inner ends, connected respectively to a fixed pivot and to a hydraulic actuator at the outer ends and engaging the shoes intermediately. The brake shown is of the kind in which each shoe anchors at one end or the other during application, according to the direction of drum rotation. Adjacent each pair of adjacent ends of the shoes 14, 16 is mounted on the exterior of the back plate 12 by means of a boss 26 a hydraulic cylinder 24 to the cylinder and piston of which are respectively pivoted, levers 56, 46. The levers pass through slots in the back plate and the shoes and are connected by links 54. When the cylinder is operated, balanced forces are applied by the levers to the shoe ends and one of each pair of adjacent ends anchors against the flange 32 of a plate 30. The flange 32 surrounds a flange 28 on the back plate and the cylinder and plate 30 are secured by a screw 34.
Patent GB-834369-A (GB)
Title: Protective coating resistant to marine borers
IPC: B32B15/08
Filed: 1958-02-07
Abstract: A metal article is coated with a laminated protective coating having an inner anti-corrosive layer, an inert mineral layer affixed to the anti-corrosive layer by an interposed adhesive layer, and an outer finish layer, the inner, adhesive, and outer layers being derived from a liquid polymer of a conjugated diolefine containing 4 to 6 carbon atoms, or a copolymer thereof with a vinyl aromatic hydrocarbon.  The polymers may be dissolved in a solvent and blown with oxygen before applying in solution or as a latex by brush, felt, roller, or spray and may subsequently be cured by an open flame.  The inert layer may be of sand.  In an example, a copolymer of butadiene-1 : 3 and styrene, prepared by solution polymerization in the presence of a finely divided alkali metal catalyst such as sodium and a hydrocarbon solvent, was dissolved in an aromatic hydrocarbon and blown with air; two coats of the solution were applied to a metal pipe, followed by two coats of sign-painter's black sand, and two further coats of the polymer, each coat being cured by a ribbon burner flame.
Patent GB-959008-A (GB)
Title: Lubricating device for sewing machine loop taker
IPC: F16N13/20
Filed: 1963-02-01
Abstract: 959,008. Lubricating. SINGER CO. Feb. 1, 1963 [Feb. 26, 1962], No. 4227/63. Heading F2A. [Also in Division D1] A lubricating device for the loop-taker raceway 24 of a sewing machine comprises a pump housing 50 which has a bore 51 therein to receive a loop-taker shaft 13; has a portion thereof extending into a reservoir 39; has a bore 54 therein which receives a pump-shaft 55, communicates with the bore 51, opens into the reservoir 39, and has an axis intersecting the axis of the bore 51 in non-perpendicular relation; and has an annular groove 67 therein which receives a filter 68. The shaft 55 has a helical groove 56 which leads to an annular groove 57 therein; has a radial port 58 which connects the groove 57 with a blind axial bore 59 also formed in the shaft 55; has a blind axial bore 60 with a spring 61 therein which urges a ball 62 against a screw 65 to the housing 50 and is locked by a nut 66. The axes of the shafts 13 and 55 have an angle of 85 degrees, for example, so that one corner of the shaft 55 is urged by the spring 61 into driving engagement with the shaft 13. In use, lubricant is conveyed from the reservoir 39 to the loop-taker raceway 24 when the shafts 13, 55 are rotated, the lubricant is passed through the filter 68, is collected by the groove 56 in the shaft 55 and is raised to the blind bore 59 therein via the radial passage 57. The lubricant is collected from the bore 59 by the groove 30 in the shaft 13, the latter, having a radial passage 31 therein, conveys the lubricant to an axial bore 14 also in the shaft 13. The bore 14 is tapped to receive a screw 15 which attaches a shank 16 of a loop-taker 17 to the shaft 13. Lubricant is conveyed from the bore 14 to the raceway 24 via a slot 20 in the screw 15. Lubricant is also conveyed to an annular passage 32 in the shaft 13 which leads to a radial port 33 in a bushing 12, the latter being connected to a by-pass conduit 34 in a web 11. The conduit 34 communicates with a radial passage 36 in a valve-body 35, which leads to an axial passage 37 connected to the reservoir 39. A needle-valve 38, screwed into the valve body 35, regulates the flow of the lubricant to the reservoir.
Patent GB-173705-A (GB)
Title: Improvements relating to ships' navigation lights
IPC: B63B45/00
Filed: 1921-02-07
Abstract: 173,705. Sunderland Forge & Engineering Co., Ltd., and Allan, J. E. Feb. 7, 1921. Lamp-failure alarms.-An electric-lighting system for ships' navigation lights, of the kind in which an auxiliary lamp is connected automatically to an auxiliary source when the main lamp fails, is provided with devices to indicate the circuit which is closed. A two filament main lamp a is connected to the mains a<1>, a<2> through a switch c and a relay b, and an indicating lamp a' connected in parallel. When one filament of the lamp a fails the lamp a<3> is dimmed, and when the lamp a fails completely the relay b is de-energized to connect an auxiliary source g to an auxiliary lamp f and an indicating lamp f' through a switch h coupled to the switch c.
Patent GB-382502-A (GB)
Title: Improvements in or relating to electric spring contacts
IPC: H01R33/46
Filed: 1932-02-13
Abstract: 382,502. Electric lamp-holders. HOMBERGER, E., 36, Gerard Road, Harrow, Middlesex. Feb. 13, 1932, No. 4349. [Class 39 (ii).] Spring contacts particularly for use in the porcelain body 11 of an electric lamp-holder comprise solid plungers 12, 13, each having a threaded end portion 18 connected to a terminal head 14 by a reduced intermediate portion 19 which is surrounded by a spring 21. The spring 21 is adapted to urge the plunger forward by bearing at one end on a flange formed on the porcelain body, the other end of the spring engaging a nut 20 which is screwed on and beyond the threaded portion 18 of the plunger so as to find a seating around the reduced portion 19. The terminal head 14 is formed with a bore 17 in which the lead to the contact is clamped by a screw 16.