baber/WOPTO huggingface dataset:
Patent GB-395552-A (GB)
Title: An improved system of lighting for road vehicles
IPC: B60Q1/24
Filed: 1933-03-13
Abstract: 395,552. Systems of lighting for road vehicles. JACKSON, C. L., 31, Wellington Road, Coalbrookdale, Shropshire. March 13, 1933, No. 29783/32. [Class 75 (iv).] In a system of lighting for road vehicles an auxiliary lamp 1, which is carried by an arm or bracket 2 rigidly secured and projecting laterally on the off side of the vehicle from a point immediately in front of and below the lower edge of the windscreen, is adapted to come into operation when one or both head lights is or are switched off so as to illuminate the off side of the vehicle below the level of the driver's eyes and the off side of the road in front of and behind the vehicle. The lamp 1 is preferably oval in plan with its lower edge horizontal and it may be used as a signal or indicator when turning towards the off side. Specification 232,622, [Class 75 (iv), Lamps &c., Kinds &c. of], is referred to.
Patent GB-871335-A (GB)
Title: Auto-hardening, thermoplastic and thermosetting synthetic resin composition, shaped articles fabricated therefrom and method for preparing same
IPC: B22C1/22
Filed: 1957-09-23
Abstract: An auto-hardening composition comprises by weight between 2% and 60% of an aqueous thermosetting phenolic resin, between 40% and 98% of an inert filler, and between 0,5% and 35%, by weight of the resin, of a catalyst which is powdered magnesium oxide, aqueous slurried magnesium oxychloride, aqueous slurried magnesium oxysulphate, or any mixture thereof.  The compositions, after auto-hardening, are thermoplastic and are thermoset by heating to 250 DEG -600 DEG F. Phenolic-resin curing agents, e.g. paraformaldehyde and hexamethylenetetramine, and waxes, e.g. paraffin and carnauba waxes and octadecenamide, may also be added. Fillers specified are sand, graphite and asbestos shorts and floats.  In Examples: (1, 5) the smooth paste obtained by mixing an aqueous phenol-formaldehyde resin with MgO powder and then with silica particles, was transferred to moulds and allowed to self-harden; some of the specimens were thermoset by heating to 480 DEG F., while others were ground to powder, re-moulded and thermoset to rigid structures; (2) as in (1) except that MgO was replaced by an aqueous slurry of magnesium oxychloride or oxysulphate; (3, 4, 6) the coating of sand particles is described (see Group III).  Uses: for making shell moulds, hot top devices, bricks, blocks, tiles and porous media.ALSO:A coated sand composition, for making shell moulds, &c., comprises at least 86% (by weight) of sand, between 1 and 10% of an aqueous phenolic resin, preferably between 0.5 and 3.0% of a flow assisting resin which is a novolak or a thermoplastic lignin type resin derived from wood, and up to 10%, based on the total weight of resin in the composition, of a catalyst which is powdered MgO, aqueous slurried magnesium oxychloride, aqueous slurried magnesium oxysulphate or any mixture thereof.  Phenolic resin curing agents, e.g. paraformaldehyde and hexamethylenetetramine, and waxes, e.g. octadecenamide, paraffin and carnauba, may also be added.  In Examples, (3) sand was coated by adding it, with mixing, to a mixture of an aqueous phenol-formaldehyde resin, MgO and hexamethylenetetramine, and the resulting coated sand was allowed to auto-harden to a dry, free-flowing condition within an hour: the product was subsequently broken to fine particles on a two-roll mill; (4) coated sands were made by mulling the sand with the catalyst, wet coating the granules with the aqueous phenolic resin and continuing the mixing until the applied resin auto-hardened; the phenolic resin contained hexamethylenetetramine and a wax was included in some of the coatings; (6) as in (4) except that a flow-assisting resin was incorporated in the composition after the sand had been wetcoated with the phenolic resin.
Patent GB-875260-A (GB)
Title: Improvements relating to spools for sound recording and sound reproducing machines
IPC: G11B27/34
Filed: 1958-09-18
Abstract: 875,260. Magnetic recording. MERRITT, L. F. Sept. 15, 1959 [Sept. 18, 1958], No. 29835/58. Drawings to Specification. Class 40 (2).  A spool carries at one end a white disc engraved with graduations to correspond with the graduations on a tape position indicator on the machine. The disc is of a material such as ivorene, which may be marked with pencil to indicate the positions on the tape at which particular recordings occur, and from which marks previously made may be easily erased.
Patent GB-962709-A (GB)
Title: Removable slide carrier for projectors
IPC: G03B23/04
Filed: 1962-08-03
Abstract: 962,709. Magazine slide changing apparatus. KINDERMANN & CO. G.m.b.H. Aug. 3, 1962 [Sept. 15, 1961], No. 29869/62. Heading G2J. A projector having a slide magazine 2 holding a large number of diapositives 5 from which the latter can be pushed into the slide carrier 4 by a slide changer 6 movable transversely to the direction of advance at the magazine, is characterized in that the carrier 4 is constructed as a slidable device and can be upwardly extracted from the projector casing 1 with or without a slide, independently of the magazine. The carrier 4 has a lateral stop 9 and guides 7 and 8 for the slides 5.
Patent GB-416200-A (GB)
Title: Improvements in and relating to continuously-operating retorts for carbonisation and distillation of coal, lignite, peat, shales and other solid carbonaceous materials
IPC: C10B7/00
Filed: 1933-10-27
Abstract: 416,200. Retorts for destructive distillation. LAMBOT, M., 225, Rue des AlliÚs, Forest, Brussels. Oct. 27, 1933, No. 29883. Convention date, Oct. 28, 1932. [Classes 51 (i), 51 (ii), and 55 (i).] In carbonizing apparatus, the fuel is supplied from a hopper 36 to the annular space enclosed between a cylindrical retort 18 having longitudinal grooves, and a central hollow core with perforations 24 through which the distillates are withdrawn, the core carrying a screw 22 which compresses and feeds the charge through the retort. Partitions 28, 29 and concentric tubes 30, 31 divide the outlets up into temperature zones from each of which the distillates are withdrawn separately through pipes 32, 33, and 34. Steam, gas, or liquid hydrocarbons are admitted through a pipe 35 extending to the bottom of the charge. The heating chamber 1 is supplied with hot gases through openings 2 from combustion chambers 3 having burners 11. The hot gases circulate around the retorts, and return through openings 4 leading by channels 5 to a conduit 8 provided with inlet and outlet pipes through which some of the hot gases are forced through a cooler 14 by a fan 15, whereby circulation of the gases is promoted, and their temperature controlled. The coke falls into a cooler 38 having interconnected doors 39, 40, the door 40 being provided on its axle with a notched disc 41, the notch 42 of which receives a rod 43 sliding in a sleeve 44. The door 40 through which the coke is renewed cannot be opened unless door 39 is closed, allowing the rod 43 to slide clear of the notch 42.
Patent GB-767925-A (GB)
Title: Acrylonitrile copolymers and process for making them
IPC: C08F8/00
Filed: 1953-10-30
Abstract: Copolymers are prepared from acrylonitrile and the vinyl ether of an alcohol containing halogen derived from an aliphatic hydrocarbon containing 2-4 carbon atoms, and, if desired, another copolymerizable compound.  The alcohol from which the ether is derived may be ethylene chlorhydrin, 1-hydroxy-3-chloropropane, 1,2 - dihydroxy - 3 - chloropropane, 1 - hydroxy - 2 - chloropropane, 1 - hydroxy - 3 - bromopropane or an analogous derivative of butane.  The other copolymerizable compound may be a vinyl ester, vinyl chloride, a vinyl ether, an acrylate or methacrylate, vinyl sulphofluoride, a vinyl sulphone, styrene or a nuclearly substituted styrene, a maleate, fumarate or itaconate, vinyl pyridine or vinyl picoline. Examples describe the copolymerization of acrylonitrile and vinyl chlorethyl ether and of acrylonitrile, vinyl chlorethyl ether and allyl ethyl carbonate.  The polymerization may be carried out in an aqueous medium with or without the use of an emulsifying agent which may be sodium, potassium or ammonium myristate, laurate, palmitate, stearate or oleate, an alkyl sulphonate prepared by the sulphochlorination of paraffin hydrocarbons containing 10 to 16 carbon atoms, an aralkyl sulphonate in which the alkyl radical contains 6 to 16 carbon atoms, a salt of alkyl-sulphamidoacetic acid, a sodium, potassium or ammonium salt of an alkyl-sulphuric acid containing an alkyl radical containing 10 to 20 carbon atoms, or a polyglycol derivative of the formula <FORM:0767925/IV(a)/1> where R represents an alkyl radical containing from 4 to 20 carbon atoms and x may be a whole number from 3 to 30.  A salt, particularly a magnesium salt, may be added with the emulsifying agent. Polymerization may be catalysed by hydrogen peroxide, potassium persulphate, benzoyl peroxide or a redox system such as benzoyl peroxide and benzoin, potassium persulphate and bisulphite or hydrogen peroxide and sodium formaldehyde sulphoxylate.  The emulsifying agent, monomer mixture or catalyst may be added during the course of the polymerization.  The copolymers may be reacted with ammonia or an amine such as methylamine, dimethylamine, trimethylamine, morpholine, pyridine, picoline, piperidine, quinoline, quinolidine, ethanolamine, dimethylaminoethanol, ethylene diamine or hexamethylene diamine.  The copolymers and their reaction products with ammonia and amines may be used for the production of dyeable filaments and films.
Patent GB-505097-A (GB)
Title: Improvements in or relating to the purification of alkali metals
IPC: C22B43/00
Filed: 1937-11-04
Abstract: 505,097. Extracting alkali metals. DU PONT DE NEMOURS & CO., E. I. Nov. 4, 1937, No. 30196. Convention date, Nov. 4, 1936. [Class 82 (i)] Mercury is removed from mixtures of mercury and alkali-metals, e.g. sodium with or without potassium, by treatment above the melting point of the mixture with an alkaline-earth metal (including magnesium). The mixture is allowed to settle and the solid mercury-containing material is removed, e.g. by filtration or centrifuging, and is heated in a retort to drive off mercury, the residue, which contains calcium and a little mercury and alkali metal, being used for the treatment of a fresh batch of amalgam. In order to keep the mixture undergoing treatment liquid at a convenient temperature, e.g. 200-300‹ C., or 600-800‹ C., alkali-metal may be added. Conveniently, the alkali-metal present should amount to 75 per cent by weight of the mixture present and in any case may exceed the weight of mercury present, being, for example, 3-5 or 10-15 times as much. The operation may be carried out under an inert gas and glass wool may be used as the filtering-medium. The alkalineearth metal, e.g. calcium, should be used in subdivided form produced by cutting, abrading or by precipitation from a solution in alkalimetal carried out, e.g. by cooling to about 200‹ C. a solution prepared under an inert gas at 500-800‹ C., or derived from the electrolysis of fused sodium and calcium salts, and filtering through steel wire cloth. Specifications 505,111 and 505,112 are referred to.
Patent GB-670309-A (GB)
Title: Improvements in or relating to a starter device for high speed internal combustion engines
IPC: F02C7/277
Filed: 1949-11-25
Abstract: 670,309. Turning-gear. GARRETT CORPORATION. Nov. 25, 1949 [June 25, 1949]  No. 30246/49. Class 7(v) In a starter device for high-speed internal combustion engines having a shaft 121, Fig. 1, and comprising a housing 22 adapted to be detachably connected to the engine 15, a drive shaft 100 rotatably supported in the housing 22 and adapted to be operatively connected to the engine shaft 121, a turbine in the housing 22 having an air driven wheel 55, and transmission means, such as sun and planetary gearing 53, 79 and 81,  friction rings 88 and 97, driving element 40 and pawl and ratchet coupling 112, interconnecting the wheel 55 and the drive shaft  100, the transmission is adapted to partially or completely interrupt the transmission of power to the.drive shaft 100 in response to the occurence of an overload condition. Compressed air enters a scroll 68 and flows through tangential nozzles having nozzle openings 66 formed by inclined blades or partitions 67 to impinge upon the blades of the turbine wheel 55, the air then discharging axially through a passage 70 in which .is a screen 71. Rotation of turbine shaft 52 which has the sun gear 53 secured thereto is transmitted to the compound planetary gear 79 and 81, the part 81 meshing with gear 53 and part 79 meshing with a ring gear 85 that is engaged on opposite side faces by the friction rings 88 and 97, the former being secured to the casing and the latter to a ring 91 which is joined. by pins 94 to another ring 92, a spring 98 surrounding each pin and serving to load the friction rings. The ring gear 85 is held stationary so that the planetary gears 79, .81 travel round the gear 85 to rotate the driving element 40 at a speed slower than that of the turbine. Upon a predetermined load being exceeded the gear 85 overcomes the frictional resistance of the rings 88 and 97 and revolves whilst the planetary gears merely rotate on their own axes. The driving element 40 is coupled by a cross pin 45 to a driving member 46 which is in turn connected by the pawl and ratchet coupling 112 to the splined driving shaft 100 that engages the engine to be started. When the engine reaches operating speed sufficient torque and centrifugal force are imposed upon the spring-loaded coupling pawls 111 to cause them to pivot out of engagement with the ratchet and disconnect the drive to the engine, whereupon the starter is stopped. The starter may be permanently fixed to the engine or removed therefrom as soon as the engine has started. The compressed air is supplied by an auxiliary unit 20, Fig. 8, comprising a compressor 126, part of the output from which is led through pipes 135 past valves 140, 141, which control the air flow to either one or both of the starters 17 and 18, attached to engines 15 and 16, respectively. Part of the air may be diverted for other services whilst the remainder is directed through auxiliary combustion chambers 128 to enter the scroll of turbine 125 which drives the compressor.
Patent GB-1045978-A (GB)
Title: A semiconductor element, and a process for its production
IPC: H01L31/00
Filed: 1963-07-30
Abstract: 1,045,978. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. July 30, 1963 [July 31, 1962; April 17, 1963], No. 30250/63. Heading H1K. A semi-conductor device comprises a body of crystalline semi-conductor material containing geometrically anisotropic inclusions of a second phase consisting of a material of higher electrical conductivity. The inclusions, which may be of laminar or needle-shaped form and distributed throughout the entire body or only in parts of it, have their largest or shortest dimensions aligned. Suitable elements consist of indium antimonide, indium arsenide or gallium arsenide with inclusions of pure elemental metals such as antimony or of compounds of the general type CB x V, where C is Fe, Ni, Co, Cr or Mn and B<SP>V</SP> an element of Group V, such as FeSb 2 , NiSb, CrSb 2  and the ferromagnetic MnSb. Germanium elements containing inclusions of germanides of iron, nickel, cobalt, manganese and chromium are also described. Alignment of the inclusions may be attained by directional cooling of a melt of the materials or by cooling in a magnetic field. The result is more readily achieved if the inclusion material forms a eutectic with the semi-conductor. Typical systems of this type, the compositions by weight of which are given are InSb-Sb; GaSb-Sb; InSb-NiSb; InSb-MnSb; InSb- CrSb 2 ; InSb-FeSb 2 ; Ge-Ni; Ge-Mn; Ge-Fe; and Ge-Co. The dependence of the resistance of the elements on magnetic field for various directions of inclusion alignment is discussed.
Patent GB-890451-A (GB)
Title: Improvements in or relating to systems for brightness intensification of optical images
Inventor: BOUWERS ALBERT
IPC: G02B23/12
Filed: 1959-09-04
Abstract: 890,451. Reflecting objectives. OPTISCHE INDUSTRIE DE OUDE DELFT N.V. Sept. 4, 1959, No. 30254/59. Class 97(1). [Also in Groups XL(b) and XL(c)] In a system for intensifying the brightness of optical images comprising the combination of an image intensifier tube 9 and a reflecting objective 3, 4, 5, with baffle 6 for projecting an image on the photocathode 8 of the tube, the system having an overall magnification between 0.75 and 1.5, the objective has a magnification between 2 and 5 and the intensifier tube has an appropriate reduction to bring the overall magnification to the desired value. By giving the intensifier tube a reduction, the resolving power of the electron-optical can be improved. As a consequence the combination of tube and optical system does not appreciably reduce image contrast and a number of such combinations may be used if desired in tandem. Specification 825,789 is referred to.
Patent GB-1521831-A (GB)
Title: Process for recovering metal compounds
IPC: C22B3/00
Filed: 1976-07-21
Abstract: 1521831 Recovery of metals L W COFFER 21 July 1976 [11 Aug 1975] 30315/76 Heading C1A Metal compounds are recovered from materials containing them by leaching with aqueous nitric acid at atmospheric pressure, adding an inorganic salt to the solution where the said inorganic salt has not been formed as a result of said leaching, heating the solution to evaporate water and increase the boiling point of the solution to allow the metal compounds to selectively precipitate from the solution and filtering the solution. Exemplified metals are nickel, manganese, cobalt, copper, iron, gold, silver, lead and aluminium; vanadium, uranium and thorium are also mentioned.
Patent GB-423388-A (GB)
Title: Improvements in or relating to landing or wading nets
IPC: A01K77/00
Filed: 1933-11-02
Abstract: 423,388. Rod couplings. ROBINSON, W., and WARD, T. E., 40, Prospect Hill, Redditch, Worcestershire. Nov. 2, 1933, No. 30428. [Class 99 (i)] [See also Group VI] The arms 2, 3, of a landing - net make a tongue and slot engagement with each other and are locked together by a nut 8 which engages a threaded sleeve 5. Endwise displacement of the nut is prevented by a collar 9.
Patent GB-618019-A (GB)
Title: Automatic device for aligning belts or endless bands for conveyors and other apparatus
IPC: B65G39/16
Filed: 1946-10-14
Abstract: 618,019. Belt gearing. STEPHENS, SMITH, & CO., Ltd., LISTER, G. C. B., and WALSH, T. E. Oct. 14, 1946, No. 30607. [Class 80 (i)] [Also in Group XXX] An endless belt is automatically maintained in its correct central or aligned position by mounting a roller or pulley round which the belt passes, on bearings carried at one end of a pair of arms which are pivotally mounted intermediate their ends on fixed pivots and are adapted to engage at their other ends with the sides of the belt so that, should the belt tend to move to one side, the adjacent arm is moved about its pivot and the roller or pulley is advanced on that side and retracted on the other side and consequently tightens the belt on that side and slackens it on the other, causing the belt to assume its correct central position. Fig. 2 shows the application to an endless belt conveyer wherein the conveyer roller 2'is supported in bearings 3, 4 formed on levers 5, 6 which are pivotally mounted at 7, 8 on a fixed frame 9 and carry rollers 10, 11 in engagement with the lower run of the belt 1. The levers are connected together by a link 12.
Patent GB-520453-A (GB)
Title: Process for incorporating gluten in flour
IPC: A21D2/26
Filed: 1938-10-22
Abstract: 520,453. Flour &c. preparations. WALPOLE, C. E. Oct. 22, 1938, No. 30616. [Class 49] The gluten content, of cereal or vegetable flours or meals is increased by incorporating wet or hydrated gluten in the flour or meal by mechanical or frictional means (e.g., by a grinding or milling machine), whereby a product is obtained which is substantially of the same texture as the original flour or meal. The wet gluten (e.g., from washed wheaten flour) may be shredded or divided into small pieces which are rubbed into the flour either by hand or mechanically, the resultant product being sieved and the excess moisture dried out. Alternatively, the wet gluten and flour or meal are subjected to a preliminary mixing operation in a dough mixer, and then fed into an impact or roller mill, the product being subjected to a further grinding operation if desired, and finally dried. The wet gluten may be first mixed with a small proportion of the flour or meal to form a firm dough, which is then divided into small pieces which are frictionally incorporated in the remainder of the flour or meal. The wet gluten may be mixed with other materials, such as gelatinized starch or malt, to form a plastic mass which is atomized and sprayed into the flour, and incorporated therein in a mill &c. Other materials may be added, such as fats or chemical flour improvers.
Patent GB-1519630-A (GB)
Title: Weft selector devise for weft threads in a weaving loom
IPC: D03D47/00
Filed: 1975-07-22
Abstract: 1519630 Weft selection; shuttleless looms VYZKUMNY A VYVOJOVY USTAV ZAVODU VSEOBECNEHO STROJIRENSTVI 22 July 1975 [25 July 1974] 30656/75 Heading DIE A weft selector bar 37 is pivoted to the picking plane by a cam 17, and is moved by a pattern operated slide 41 to position a desired selector 31 in the picking position, a cam 18 then pivots a lever 26 to open clamps 44, 48 in the selector 31 and a gripper 53 is moved over a wedge and the selector 31 to open its clamp 52 to grip and pick the weft 49.
Patent GB-505439-A (GB)
Title: Improvements in the manufacturing process of tins and like containers
IPC: B21D51/32
Filed: 1937-11-09
Abstract: 505,439. Making rip seams. BOGNER, P., and LIEBEL, W. Nov. 9, 1937, Nos. 30684/37, and 634/38. [Class 83 (iv)] Rip seams of the kind described in Specification 505,454, are produced by the employment of a head 22, Fig. 1, that fits the depression in the end closure 13 and has a flange 23 that overlaps the narrow shoulder 19 and supports the ridge, containing the rip wire 20, during the seaming operation. The first stage in the seaming is effected by the curved surface 26 of the roller which has a flange 27 that bears on the flange 23. The flange 27 is tapered to cause the seaming roller to rise slightly during the closure and thus feed metal into the seam. The closure is completed by the roller 34, Fig. 2. In a modification the head 22 has a flange that overlaps the seaming roller which in this case is formed to close the ridge more closely round the rip wire. In further modifications, the head or the roller is grooved to receive the guide flange on the roller or the head. The roller shown in Fig. I may be modified to close the ridge round the wire.
Patent GB-745828-A (GB)
Title: Improvements in or relating to current collecting brushes
IPC: H01R43/12
Filed: 1952-12-03
Abstract: A composition suitable for the production of current-collecting brushes having improved wear-resistance comprises carbon or graphite and one or more of polytetrafluoroethylene, bromo-, iodo- or chloro-substituted derivatives of polytetrafluoroethylene, and wood-filled thermosetting resins. Examples describe compositions containing graphite and polytetrafluorethyene and one or both of wood-filled phenol-formaldehyde moulding powder and copper powder.