baber/WOPTO huggingface dataset:
Patent GB-582281-A (GB)
Title: Improvements in art of dielectrics
IPC: H01B3/18
Filed: 1943-03-05
Abstract: 582,281. Electric insulating compositions. AEROVOX CORPORATION. March 5, 1943, No. 3625. Convention date, July 7, 1942. Drawings to Specification. [Class 140] A dielectric composition for impregnating cellulosic elements of electric condensers comprises castor oil or glycerol triricinoleate which is liquid at room temperature and has been purified by treatment with a bleaching clay (e.g., fuller's earth) or an activated clay or activated carbon and is substantially devoid of free fatty acid. The castor oil may contain less than 0.4 per cent. and as little as 0.01 per cent. free acid calculated as oleic acid. Adsorbents specified are fuller's earth, bentonite, activated clays, and activated carbons. Adsorbent treatment may be performed either on commercial castor oil containing free fatty acid or on castor oil from which free acid has been either completely or partially removed. The purified castor oil has much bigger resistivity and an improved power factor. Wound condenser sectors may be dried at 250‹F under a vacuum of aproximately 200 microns mercury, and the impregnating oil run in through clean conduits while maintaining a vacuum of 400 microns or better. The sections are allowed to remain in oil for several hours at 180‹F. under a vacuum of approximately 100 microns, and after breaking the vacuum the sections are sealed in metal containers filled with fresh oil. Specification 581,483, [Group III], is referred to. The Specification as open to inspection under Sect. 91 refers also to the use of a member of the class including fatty acid esters and mixtures thereof such as vegetable oils and waxes and derivatives of each of the alternatives, the material being largely or substantially wholly free of some or all of those electrically deleterious constituents normally present in commercial chemically pure products, the constituents including free fatty acid and impurities removable by adsorption. Vegetable, animal, and synthetic oils, fats, and waxes, and derivatives such as acetylated and hydrogenated fatty esters and also derivatives such as ketones are referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-471520-A (GB)
Title: Filter-layers for colour photography
IPC: C06B23/00
Filed: 1936-02-06
Abstract: 471,520. Colour photography. GROVES, W. W. (I. G. Farbenindustrie Aht.-Ges.) Feb. 6, 1936, No. 3650. [Class 98 (ii)] A material for colour photography comprises a filter layer consisting of a layer containing colloidal silver arranged in front of a light sensitive emulsion layer or between two such layers. With colour screen or lenticular screen material the colloidal silver acts as a correction filter. The filter layers are made by producing a silver sol of suitable colour, e.g. by reducing silver nitrate in alkaline solution by a reducing agent such as dextrin, ferrous citrate or hydroquinone and pouring into gelatine solution. The gelatine solution is allowed to solidify, cut into strips and washed. Red or yellow layers are prepared by the action of sodium hydroxide and dextrin on silver nitrate, and may be changed to copper-red or green by the combined action of basic sodium phosphate and continued washing of the precipitate. Other examples describe the use of protalbinic acid, lysalbinic acid, hydroquinone, or ammoniacal hydrazine in the production of filter layers of a large range of colours. The influence of electrolytes on the colours of the silver sols is also described A multilayer material comprising three light sensitive layers containing colour formers and a blue-absorbing filter layer of colloidal silver is described. In colour screen and lenticular screen material a correction filter with colloidal silver of appropriate grain size is cast on the front of the emulsion layer.
Patent GB-230426-A (GB)
Title: Improvements in wooden rollers, pulleys and the like
IPC: F16H55/48
Filed: 1925-02-09
Abstract: 230,426. Alexander, H. G. March 10, 1924, [Convention date]. Rollers.-Wooden rollers or pulleys comprise a number of short sections 11 held together by bolts 19, one face of each section being recessed to receive a flanged plate) 16 for holding together the component wooden sectors 7 which are arranged with their grain in a radial direction. The sectors may be of equal size and the plate polygonal, as shown in Fig. 6, or of different sizes and the plate circular. Some of the plates 16 may be keyed at 17 to the shaft 1 or to a tube 2 keyed at 5 to the shaft. End clamping plates 20 are provided.
Patent GB-448721-A (GB)
Title: A combined sun visor and wind deflector for motor cars and the like
IPC: B60J7/22
Filed: 1935-02-05
Abstract: 448,721. Vehicle wind-defiectors and antidazzle screens. MARTIN, J., 110, Hillview Drive, Clarkston, Glasgow. Feb. 5, 1935, No. 3651. [Class 103 (ii)] A combined sun-visor and wind-deflector for motor vehicles comprises a single or compound antidazzle screen placed behind and extending across the front windscreen and hinged to the vehicle body in such a manner that when used as a wind-deflector it extends or one part of it extends upwardly through the sunshine roof opening D and prevents draught inside the vehicle. As shown in Fig. 1, the screen A occupies the positions A<1>. A<2> to act as a deflector and sun visor respectively, the hinge B acting as a draught excluder. In a modification the upper edge of the screen is spaced from the hinge axis and draught is prevented by the screen engaging the forward edge of the roof-opening D. Fig. 5 shows the screen in two parts A, A<2> which may simultaneously occupy the operative positions A<1>, A<3>. In each construction the screen may be divided into two parts by a plane extending longitudinally of the vehicle. The screen may be locked in any position.
Patent GB-302830-A (GB)
Title: Improvements in or relating to apparatuses for cleaning surfaces
IPC: A47L11/28
Filed: 1928-02-06
Abstract: 302,830. Wier, S. A. Feb. 6, 1928. Water-tube boilers.-A steam-generating unit adapted to impel a mixture of hot water and detergent solution against a surface to be cleaned comprises a jacket 10 provided with a burner 10 and enclosing a water column 15, coiled circulating tubes 19 having their ends connected to the top and bottom of the column, and a coil 18 connected to a water supply pipe 17. Steam coils 20 with their upper ends connected to the top of the column have their lower ends connected to an outlet pipe 21.
Patent GB-368484-A (GB)
Title: Vehicle wheels
IPC: B60B1/02
Filed: 1931-02-06
Abstract: 368,484. Wheels for vehicles. OWEN, A. G. B., New Hall, Sutton Coldfield, and DOWNS, R. W., Marquette, Lichfield Road, Walsall. Feb. 6, 1931, No. 3781. [Class 144 (i).] Suspension-spoke wheels.- Relates to wheels of the kind in which the hub shell is offset axially from the rim so that accommodation is left for brake drum or steering swivel elements within the width of the rim, and consists in a construction wherein the inner end of the hub shell is substantially in the central plane of the rim, zones at opposite ends of the hub shell being connected with the rim solely by two crossing sets of individual spokes of which that set from the outer zone reaches the rim at the central plane thereof, or between the latter and the outer edge of the rim, while the set of spokes from the inner zone of the hub shell engages the rim nearer its outer edge. The hub shell is formed as a cup-shaped pressing with a radially-extending flange at its inner end, the margin 21 of the flange being substantially inclined to the hub shell axis. This margin is connected to a flat portion 5 of the rim on the outer side of the central well 3 by tangential spokes 20 which are substantially coplanar and are joined to the margin in two close parallel rows. The other set of spokes 13 comprise half the number of the first set and are in substantially radial planes, but considerably inclined to the plane of the rim. They connect the well 3 with the outer end of the hub shell in two close parallel rows.
Patent GB-1150085-A (GB)
Title: Improvements in or relating to Safety Harnesses
Inventor: DAVIES IVOR JOHN
IPC: B60R22/12
Filed: 1965-01-28
Abstract: 1,150,085. Safety harnesses. TELEFLEX PRODUCTS Ltd. 28 April, 1966 [28 Jan., 1965], No. 3832/65. Heading A3V. A safety harness consists of two separate side portions which pass over the wearer's shoulders and extend down to fixed anchorages 14 either on the seat or on the vehicle structure, the side portions having means for fastening them together at an intermediate position along their lengths immediately in front of the wearer's body. The side portions may be straps 16 the upper ends of which are taken to a harness reel 13, which may be of the inertia type, in the seat back. The straps may be joined together by a sliding clasp fastener 15. Alternatively the side portions may comprise two apertured flaps of flexible material integral with the seat and taking the form of a partial waistcoat.
Patent GB-783717-A (GB)
Title: Improvements relating to electric hot-plates
Inventor: MOULE GORDON HENRY
IPC: H05B3/76
Filed: 1955-02-09
Abstract: 783,717. Electric hot-plates. BACKER ELECTRIC CO., Ltd., GENERAL ELECTRIC CO., Ltd., HOTPOINT ELECTRIC APPLIANCE CO., Ltd., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 9, 1956 [Feb. 9, 1955], No. 3897/55. Class 39(3) In an electric hot-plate of the kind having at least one convoluted sheathed wire heating element 5 supported within a frame 4 having an outer lip 6 engaging the sunken rim of an opening in a hob 1, the ends 8 of the element 5 are bent to extend into a terminal box 10 having an upper wall 11 notched at 12 for engagement with and securement to a boss 14 projecting down from the underside of the hob 1 adjacent the opening therein. The bent ends 8 of the element 5 project through an opening in the rectangular or circular frame 4 and pass through apertures in the substantially rectangular terminal box 10. The lower wall 15 of the box 4 is notched to receive a threaded post 13 screwed into the boss 14 and attached to the box 4 by nuts 18. The frame 4 has an internal spider 7 supporting the element 5 and is held located in the hob opening by one or more spring clips 22 entering notched apertures or recesses in the wall of the frame 4. The clips 22 are secured to the underside of the hob 1 by screws 22<SP>1</SP>. A drip-plate or reflector 23 of aluminium or enamelled steel is mounted on runners attached to the underside of the hob or the frame of a cooker. The reflector may be readily removed. A single reflector may serve two hot-plates.
Patent GB-568675-A (GB)
Title: Process of making composite yarns, and the composite yarns so produced
IPC: D06M15/39
Filed: 1943-03-12
Abstract: 568,675. Composite yarns. RAYNER, G. F. (Sylvania Industrial Corporation). March 12, 1943, No. 4031. [Class 120 (iii)] A composite yarn is formed by associating two or more strands together at least one of which comprises potentially adhesive fibres, activating the potentially adhesive fibres before weaving or knitting sufficiently to render them tacky so that adjacent strands even though one is of non-adhesive material are bonded together but do not form a continuous surface coating on the yarn whereby untwisting is prevented while the yarn remains substantially flexible. A strand 1, Fig. 1, of potentially adhesive fibres passes from a spool 2 through pressure rollers 3 and axially through a driven spool 4 from which a strand 5 is wound spirally around the strand 1 to form the composite yarn 8. When the composite yarn is heated sufficiently to render the fibres of strand 1 tacky but insufficiently to destroy the filamentary form the spiral wrappings of strand 5, Fig. 2, are bound together and prevented from becoming displaced on the strand 1. Alternatively the strand 5 may comprise potentially adhesive fibres and the strand 1 nonadhesive fibres. The yarn 1 may be pretwisted to counteract the twist imparted by the covering strand 5 while a second strand may be applied thereover. In a modification, a filament 14 may be passed through the nip of the last pair of drawing rollers 13 of a series 11, 12, 13, Fig. 3, and a roving 10 twisted thereabout by a traveller 17. Alternatively the strand 14 may be twisted about the roving 10 while in a further modification the strand 14 is fed downwardly to contact the roving 10 adjacent the surface of the lower roller 13. In another form the composite yarn comprises a plied yarn formed from a number of strands passed through a common guide and then twisted about each other and wound on a spool by a traveller. Specifications 501,436, 538,865, 552,130 and 552,131 are referred to. Reference has been directed by the Comptroller to Specifications 552,130 and 552,131.
Patent GB-1524351-A (GB)
Title: Dry blasting agents
IPC: E02B17/02
Filed: 1975-09-04
Abstract: 1524351 Explosive compositions INDIAN EXPLOSIVES Ltd 4 Sept 1975 04126/74 Heading C1D A dry blasting composition is made by mixing ammonium nitrate, with or without another inorganic nitrate, e.g. sodium nitrate, with a sensitizer comprising a nitrate, perchlorate, chlorate or organic salt of iron, cobalt, chromium, nickel, lead, or copper and then adding a fuel and mixing the whole composition. The fuel may be diesel oil, furnace oil, sulphur, urea, wood meal, bagasse, or aluminium. In examples the sensitizers used are chromium nitrate, ferric nitrate, cobalt nitrate, and lead nitrate. The composition may be detonated in boreholes of less than 2 inches diameter.
Patent GB-679087-A (GB)
Title: Culturing antibiotic-producing actinomycetes in liquid media containing fats or the fatty acids therefrom
IPC: C12P19/52
Filed: 1951-02-20
Abstract: A method of culturing antibiotic producing actinomycetes comprises culturing the actinomycetes in contact with a liquid nutrient medium including as an assimilable source of carbon and energy a substance which is a member of the group consisting of (1) fats and (2) fatty acids having at least 14 carbon atoms in the molecule, the amount of any other assimilable source of carbon and energy in the medium being substantially less than the total caloric requirement of the culture. Thus the carbohydrate content of the culture medium is replaced wholly or in part by such a fat or fatty acid, or mixture of two or more such substances, on a weight basis, or preferably on a caloric basis.  The liquids are preferred; the solids are melted before mixing in the culture medium, or may be dispersed therein during the sterilization step. Specified fats are lard oil, soybean oil, linseed oil, cottonseed oil, peanut oil, coconut oil, corn oil, castor oil, sesame oil, palm oil, tallow, sperm oil, olive oil, tristearin, tripalmitin, triolein and trilaurin.  Suitable fatty acids are stearic, palmitic, oleic, linoleic and myristic acids.  Comminuted whole seeds, e.g. ground, crushed or macerated with water, may be used especially beans, peanuts, cottonseed and linseed.  Examples relate to the culturing of (a) streptomyces griscus (streptomycin), streptomyces fradiae (neomycia) and streptomyces aureofaciens (aureomycin).  Other microorganisms specified are streptomyces lavendulae (streptothricin) and streptomyces venezuelae (chloromycetin).
Patent GB-111782-A (GB)
Title: Improvements in Typewriting Machines.
Inventor: FAIRWEATHER WALLACE CRANSTON
IPC: B41J3/36
Filed: 1917-03-23
Abstract: 111,782. Fairweather, W. C., (Underwood Typewriter Co.). March 23, 1917. Type-lever machines; portable machines.-Machines of the kind in which the type-levels are connected by links to bell-cranks having pin-andslot connexions to the key levers are modified in the manner described below, mainly with the object of providing a compact portable machine. The type levers 3 are made short to reduce the back-to-front dimension and are arranged to swing through an angle of more than ninety degrees, one hundred and twenty degrees in the machine shown, for impression on a platen 21 which is placed low in the machine. The type-heads 20 are close behind the keyboards, those at the middle being below the rear bank of keys 1. To avoid side strains in the action due to the abnormal difference between the width of the keyboard and that of the basket of type-levers in the seament 16, the bell-cranks 8 and the rear ends of the key levers 2 are arranged in the same converging planes as the associated connecting-links 10; further, the segment 16 is inclined rearwardly to cause the pivotal connexions 11 between the type-levers and the links 10 to move in the same planes as the links. The bell-cranks 8 are of uniform size and are pivoted, preferably in pairs, on brackets 14 of graded heights, the highest brackets being at the sides. The links 10 are preferably at an obtuse angle to the rear arms of the bell-cranks. In the printing position, the links are almost radial to the pivot-wire 18. The slots 17 in the segment radiate from a point 23, Fig. 5, far above the printing point, and the pivot-wire 18 is struck from the centre 23. The arrangement renders successive slots and also the planes of movement of the associated type-levers more nearly parallel than would be the case if the slots were radial to the printing point and the pivot-wire were struck from the printing point. The arrangement thus prevents fouling of the heels of the type-levers and also enables the slot walls to bo made of sufficient thickness at the top. The type-levers are formed with heels 26 for engagement with a repulser-spring 27. Returning-springs 28 for the key-levers are each connected at both ends to a key-lever and are bent over a bar 31 when the key-levers are depressed. The connecting-lugs 29 can be bent to adjust the tension of the springs. The printing line is arranged above the level of the platen axis to render the writing visible, but is preferably well below the radius of the platen that is normal to the segment. The type-heads 20 each carry three types and are approximately vertical when in the printing position. The platen is shifted in an approximately vertical direction.
Patent GB-827511-A (GB)
Title: Improvements in or relating to methyl ethyl ketone peroxides
Inventor: MANLY THOMAS DAVID
IPC: C07C409/22
Filed: 1957-02-07
Abstract: Peroxides of methyl ethyl ketone are prepared by contacting methyl ethyl ketone with aqueous hydrogen peroxide in the presence of an inert diluent, the hydrogen ion concentration being in the range 10-7 gm. ions/litre to that which would be provided by an acid of dissociation constant 2 x 10-2 at 18 DEG  C. when present in the reaction mixture to the extent of 5% by weight. Preferably 80-90% w/w. hydrogen peroxide is used; the inert diluent is preferably dimethyl phthalate and the temperature is preferably not allowed to rise above 30 DEG  C.  Preferably an acid catalyst is present, which may be a dilute mineral or organic acid or an ion exchange resin in the acid form.  Preferably where an acid substance is used, the reaction product is either incompletely washed to a pH of 5 to 6.5 or washed with a pH 5 to 6.5 buffer.  When washing with an unbuffered solution, a dilute electrolyte solution is preferably used to avoid emulsion formation.  In a preferred embodiment, methyl ethyl ketone is added slowly with agitation and cooling to a mixture containing dimethyl phthalate and hydrogen peroxide, followed by washing and drying after the product has formed.  Examples describe the preparation of solutions of peroxides of methyl ethyl ketone in dimethyl phthalate using no catalyst or acetic or phosphoric acids, and the washing of the product with dilute aqueous sodium sulphate. The products are useful as polymerization initiators.ALSO:Peroxides of methyl ethyl ketone (for preparation see Group IV (b)) are used in conjunction with activators such as cobalt naphthenate in the polymerization of thermosetting resins, such as unsaturated polyesters, with styrene or similar cross-linking monomers.  The peroxides may be in an inert diluent such as dimethyl phthalate and have higher activity giving a quicker gel time.
Patent GB-551642-A (GB)
Title: Improvements in means for automatically controlling the supply of heat to water boilers
IPC: F24C3/12
Filed: 1942-04-02
Abstract: 551,642. Valves; retractive switches. FREWIN, S. R. April 2, 1942, No. 4389. [Class 135] [Also in Group XXXVII] A device for automatically controlling the supply of heat to water heaters is actuated by placing a vessel, adapted to receive water discharged from the heater, on a table or platform. In the form shown in Fig. 1, a valve D controlling the supply of gas or steam to the heater is opened against the action of a spring by placing a receiving vessel on a platform G arranged to reciprocate in a stand K. An electric switch may replace the valve D, and a hinged platform may replace the platform G.
Patent GB-845562-A (GB)
Title: Improvements relating to the alkylation of heterocyclic compounds
Inventor: COLLINS GEOFFREY ARNOLD
IPC: C07D215/04
Filed: 1958-02-11
Abstract: Quinoline and isoquinoline are methylated or ethylated in the b -position to the nitrogen by reaction in the vapour phase at 350-500 DEG C. with methanol or dimethyl ether or ethanol or diethyl ether in the presence of an acidic cracking catalyst containing aluminium oxide, such as alumina, silica-alumina, and fullers earth. Preferably the mixture of reactants is passed through the catalyst, which may be fixed or fluidized, and is preferably at about 450 DEG C.
Patent GB-194114-A (GB)
Title: Improvements in or relating to metal spars and the like for aviation
IPC: B64C1/06
Filed: 1922-02-15
Abstract: 194,114. Mooney, D. J., and Emby, D. H. Feb. 15, 1922. Addition to 141,141. Framework.-In metal spars &c. for aircraft, wherein channel section web members having an outwardly turned corrugation adjacent to each. flange have their flanges riveted to flange members each having a deep central longitudinal corrugation and two inwardly turned side corrugations forming abutments for the channel members, as described in the parent Specification, the flange members are so shaped that the riveted joints are nearer to the neutral axis than the parts f, g of the flange members. The form shown has an additional inwardly turned corrugation h formed in the deepcentral corrugation a of each flange member.
Patent GB-458714-A (GB)
Title: Improvements in or relating to drip mats
IPC: A47G23/032
Filed: 1936-02-14
Abstract: 458,714. Table mats. DAILLEY & CO., Ltd., 230, Dalston Lane, Hackney, and TAYLOR, R. W., 41, Woodfield Crescent, Ealing, both in London. Feb. 14, 1936, No. 4588. [Class 128] In a drip mat or doyley for wine glasses, having a base on which the glass rests and a plurality of slotted sections 12, 14, attached to the base, the slotted sections are superposed on one another when in use, and the stem of the glass extends through all the slots. There may be four sections. The sections may be dished so as to conform to the top of the wine glass base, and may interlock with each other, e.g. by tongue-and-slot means.
Patent GB-1458572-A (GB)
Title: Method of making fired construction shapes
IPC: C04B35/63
Filed: 1974-01-31
Abstract: 1458572 Glass bound compositions THIXON CORP 31 Jan 1974 04656/74 Heading C1M A particulate mixture of inert non-fusible filler (e.g. waste bricks, fly-ash, expanded shale, gravel, mine tailings or igneous rocks with optional additions of metal scrap, preferably in a minor proportion, and glass with a melting point above that of the soda lime glass binder), at least 8% of soda-lime glass with a particle size no greater than 80 mesh (US standard) and sufficient ball clay and water to make the mixture thixotropic, is formed into a shape which is dried and then fired below 1035‹ C. to soften the glass binder whilst preventing substantial chemical reaction between the binder and other components of the mixture. The binder glass may comprise: SiO 2  65-73%, Al 2 O 3  1-5%, Ca 1-10%, MgO up to 5% Na 2 O 5-20% and K 2 O up to 2% (all percentages are by weight). The making of building construction shapes (e.g. bricks, blocks, tiles, sills and lintels) is disclosed.