baber/WOPTO huggingface dataset:
Patent GB-366015-A (GB)
Title: Improvements in and relating to the treatment of materials containing silica
IPC: C01F7/40
Filed: 1930-10-22
Abstract: Ores and other materials containing silica and/or silicates and oxides of light metals such as aluminium, beryllium and magnesium or high melting heavy metals such as zirconium, chromium and vanadium are mixed with metal sulphides and carbon and the mixture is heated to such temperatures that, without melting, the silicon is driven as a volatile product comprising silicon and sulphur in the atomic ratio Si : S.  A temperature of 1350-1400 DEG  C. is suitable.  If zinc sulphide is the sulphide employed a zinc-silicon-sulphur vapour is given off which is thought to contain the compound Zn-Si-S which has been formed from an intermediately formed compound Zn-C-S.  Other sulphides with the exception of aluminium sulphide may also be employed, for example ferrous sulphide, silicon sulphide (Si-S) vapour being produced. The reaction mixture may be agglomerated by briquetting, pressing or sintering.  According to an example bauxite is mixed with zinc blend and carbon and the mixture is heated to 1350-1400 DEG  C.  The highly combustible gases evolved are burnt to produce zinc oxide and silica.  The zinc oxide may be removed by lixiviation with acids or alkalis.  By controlling the temperature of the combustion the silica may either be obtained as insoluble silicic acid or a colloidal silicic acid which may be converted into silica gel.  The materials may be treated to remove a greater part of their silica content by flotation before applying the process. Specifications 232,549, [Class 1 (iii), Oxides &c., Metallic], and 341,160 are referred to.
Patent GB-842962-A (GB)
Title: A plate heat exchanging apparatus
IPC: F28F3/08
Filed: 1958-10-06
Abstract: 842,962. Plate heat exchangers. SILKEBORG MASKINFABRIK A.S. Oct. 6, 1958 [Oct 9, 1957], No. 31787/58. Class 64(3) [Also in Group XXVI] A plate heat exchanger comprises a series of stacked plates 1 with corrugations 4 and having a groove 2 around the heating surface and flow pipes 3 to accommodate a resilient sealing strip 5 having. at least two longitudinal ribs which engage the bottom of the groove in the adjacent plate. A sealing strip with three longitudinal ribs is described.
Patent GB-1111564-A (GB)
Title: Method for preparing n-benzyl-n',n"-dimethylguanidine
Inventor: WALTON ERIC
IPC: C07C277/08
Filed: 1964-08-05
Abstract: N - Benzyl - N1,N11 - dimethylguanidine is prepared by reacting a benzyl isocyandihalide with methylamine and if desired converting the resultant hydrochloride into another acid addition salt and if desired, preparing the benzyl isocyandihalide by reacting benzyl isothiocyanate with a halogen.  The benzyl isocyandihalide may also be prepared by reacting benzyl isocyanide with a halogen.
Patent GB-280728-A (GB)
Title: Improvements in or relating to foot arch supports
IPC: A43B7/22
Filed: 1926-12-16
Abstract: 280,728. Scholl Manufacturing Co., Ltd., and Coffey, J. Dec. 16, 1926. Right to Patent relinquished. Foot-arch supports.-A foot-arch support comprises a dished heel portion 9, the concavity extending up the arch and beyond the crown to the line 4 - - 4 in Fig. 1. The front end of the support is convex as shown in Fig. 3 which is a section on the line 3 - - 3 in Fig. 1. The support may be built up of one or more plates of metal, horn, &c. and a covering of leather, celluloid, &c. may be provided. The space beneath the support may be filled with spongy rubber.
Patent GB-230921-A (GB)
Title: Improvements in gas cookers
IPC: F24C3/02
Filed: 1923-12-20
Abstract: 230,921. Helps, G. Dec. 20, 1923. Gas cooking-stoves; hot-plates. - To allow a hot-plate of standard size to be mounted on gas cookers of different sizes, the hot-plate and burners form a detachable unit which is carried by a base-plate, frame, or strips resting on the top of the cooker. In the form shown, the hotplate is carried by a base-plate a screwed to the oven top, the legs b which support the hot-plate being secured to angle-strips or to flats secured to the plate and arranged as shown to form grooves for a sliding crown-plate.
Patent GB-1463486-A (GB)
Title: Bearing assemblies
IPC: F16C19/52
Filed: 1973-07-04
Abstract: 1463486 Bearings ROLLS-ROYCE (1971) Ltd 26 June 1974 [4 July 1973] 31950/73 Heading F2A A bearing assembly comprises a radial rolling bearing 12 between two relatively rotatable structures, one race 16 being connected to its respective structure (e.g. a shaft 10) by a frangible joint 24, 26, there being a secondary bearing surface between the race 16 and the shaft such that on failure of the bearing 12 the joint breaks and the shaft can continue to rotate by virtue of the secondary bearing surface. The secondary bearing surface may be provided on a sleeve 30. The frangible joint may comprise a layer of adhesive, shear pins, or an integral connection with a shear neck. The joint may be provided with an electrical detector to indicate failure. Alternatively, radio-active material may be incorporated in the joint such that upon failure the material would pass into the bearing lubrication system to be detected by a suitable means.
Patent GB-900493-A (GB)
Title: Apparatus for controlling the supply of a liquid or gaseous product to a container which is to be filled with said product, the container for example being a cylinder orsimilar vessel for liquid gases
IPC: E21D15/58
Filed: 1959-09-21
Abstract: 900,493. Pipe connections. LIQUIGAS S.p.A. Sept. 21, 1959 [Sept. 20, 1958], No. 32072/59. Class 99(1). [Also in Group XXIX]. Apparatus for controlling the supply of a liquid or gaseous product to a container D comprises, in conjunction with an inlet union B for the product and an inlet union C for the compressed air required for its operation, a tubular body 1, having a nozzle E and movable in a stationary seat 8, which has two positions whereby the container may or may not be connected to the inlet for the product, and is coupled to a piston 9 sliding in a stationary cylinder 11 and actuated by means of a manual control unit, this displacing the piston into one of the said two positions corresponding to either unobstructed feed, Fig. 1, or closed off feed, the apparatus having means which clamps or holds the container. The manual control unit comprises a trigger 21 which when pulled to the left provides a passage way for the compressed air from a duct 22 through a duct 24 and right hand side of a chamber 16 to a compartment 11<SP>1</SP>, thus moving the piston 9 and tubular body 1 to the left and connecting inlet B via an oblique port 4 and a passage 1<SP>1</SP> to the head D of the container. The nozzle E is clamped between the nozzle and a support F, thus assuring the connection and continuous passage of the product from B to D (with the aid of the packing 31). When the trigger is pushed to the right the compressed air follows the path;-duct 22, duct 25, left hand side of chamber 16, duct 13, to the compartment 11<SP>11</SP> thus moving the piston 9 and body 1 to the left and pushing an annular seat 26 against an annular packing 27, carried by the seat 8. Any connection between duct B and container D is thus prevented. Relief passages 30 are provided in the body A to avoid possible pressure build-up in various parts of the holder during operation. In order to support the holder when it is not coupled to any cylinder the holder has an extension arm 28 provided with a slot 29, enabling it to be connected to a balanced support in approximately a horizontal position.
Patent GB-621281-A (GB)
Title: Detachable wheels
IPC: B60B33/00
Filed: 1947-01-28
Abstract: 621,281. Detachable axles. LING, D. C., and GLASS, A. Jan. 28, 1947, No. 32134. [Class 108 (ii)] A wheel 36, which is intended to be detachably mounted on an article 14, is journalled and axially located on a stub axle 37, the latter being fast with a pin 38 which fits into a substantially horizontal hole in the article ; on inserting the pin into the hole, a spring clip 39 fast with the pin springs round and grips that part of the article which contains the hole. The wheel 36 is located between a nut 42 and the base of the clip 39, the latter being firmly held between a collar 40, Fig. 3, on the pin 38 and the adjacent face of the axle 37. An extension of the pin 38 fits into a bore in the axle and is secured there by a transverse peg 41. The application of the wheel to the child's chair described in Specification 621,232 is disclaimed.
Patent GB-868843-A (GB)
Title: Web drying apparatus
Inventor: BERLYN MARTIN JOHN
IPC: D21F5/00
Filed: 1957-10-15
Abstract: 868,843. Drying webs in long lengths. DOMINION ENGINEERING WORKS Ltd. Oct. 15, 1957 [July 15, 1957], No. 32192/57. Class 34(1) In the manufacture of webs, in which a web is normally carried through an enclosed drying zone by mechanical web transporting means located respectively at the entry to and at the exit from said zone and said web is dried by streams of air moving counter to the direction of movement of said web in contact with opposite sides thereof, a method of initially leading said web through said zone from said transporting means at said entry into engagement with said transporting means at said exit comprises reversing the direction of movement of said streams; whereby said web is led, through said zone. In the apparatus shown diagrammatically a web 1 is passed vertically through nine casing elements 2, Figs. 1A, 1B, 1C, transfer between elements being effected by turning and pressing rolls 28, 27, Fig. 3, the passage through the nip thereof causing any moisture to rise to the web surfaces. During drying, air is passed to the third of each set of three elements through an heat exchanger 4, conduits 6, 7, heater 8, blowers 11, conduits 13, four-way valves 14 and conduits 22. After passing through the elements 2 in countercurrent to the web, air transfer from web to web taking place through conduits 23, the moisture laden air is directed to a waste outlet 21 through conduits 24, valves 14, conduits 16, 17, 18, 19, 20, and the exchanger 4. For leading the web through the drier the valves 14 are each turned to a position 15<SP>1</SP> so that the air may traverse the elements in the direction of web movement thereby assisting the latter. This leading or threading is effected by the use of compressed air jets at the feed rollers 25 and at all turning and presser roll positions. Compressed air supply lines 46, Fig. 3, have branch lines connecting to jets 29, 60, Fig. 9, associated with the rollers 25, jets 61, 30, 32, 59, 59<SP>1</SP>, Fig. 14, associated with rolls 27, 28, at all positions where the web enters an element 2 and jets 39, 39<SP>1</SP>, 42, 42<SP>1</SP>, Figs. 12, 13, associated with rolls 27, 28, at all positions where the web leaves an element. Air from jets 39 and 42 escapes by way of ports 43, Fig. 12 and pipes 44, Fig. 3 and is returned to another casing 2 via bosses 45, Fig. 5. Air from jets 39' and 42<SP>1</SP> escapes by way of ports 62, Fig. 12, and returns to a part of a casing 2 which is at a lower pressure. During drying, the warm air leaves each casing element 2 through elbow bends 33 and turning vanes 34, 36, Fig. 7, whilst entering through a similar arrangement comprising vanes 37, Figs. 12, 13 and vanes and elbow bends 34, 33.
Patent GB-763417-A (GB)
Title: Refining of phosphorus-containing pig iron by the basic bessemer process
IPC: C21C5/36
Filed: 1954-11-08
Abstract: 763,417. Refining steel. HUTTENWERK OBERHAUSEN AKT.-GES. Nov. 8, 1954 [Nov. 9, 1953], No. 32249/54. Addition to 726,368. Class 72. In a process according to the parent Specification pig iron is refined under a slag left from the preceding batch until the solubility of the phosphoric acid in citric acid is a maximum, the slag removed, and lime added to form a second slag which is retained in the converter when the metal is tapped. The amount of lime added may be four to five times the weight of phosphorous in the next batch to be treated. The lime is preferably preheated before adding to the metal. The process may be used to treat pig iron prior to refining in an open-hearth furnace. The air blast is maintained during slagging.
Patent GB-604632-A (GB)
Title: Improvements relating to regulator switching arrangements for polyphase electrical systems
IPC: H01H9/00
Filed: 1945-11-29
Abstract: 604,632. Regulating transformers. FOWLER, J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 29, 1945, No. 32268. [Class 38 (ii)] [Also in Group XXXVII] In a drum-type polyphase tap-changing selectorswitch, the fixed contacts 2 : 7 for each phase are arranged in a zone around the cylinder 1, and selectively engaged by leading and trailing contacts 8 : 13 moved alternately step-by-step, by concentric operating shafts 14, 18, driven through Geneva wheels 25, 26 by a common driver 27. The contact arms 8, 10, 12 are fixed to the tube 14 and the arms 9, 11, 13 pivoted on the tube, and operated from the shaft 18 by keys 20 passing through slots 16 in the tube, Fig. 4. In an arrangement for one phase of a tap-changing circuit; Fig. 5, a switch 37 and divertor resistances 33, 34 are used to change circuit so that the arms 8, 9 of the selector-switch are out of circuit when moving.
Patent GB-883147-A (GB)
Title: Improvements in and relating to smokers' ashtrays
IPC: B60N3/08
Filed: 1959-09-22
Abstract: 883,147. Smokers' ashtrays. HARDCASTLE PIPES Ltd., and MISSEN, L. J. Aug. 23, 1960 [Sept. 22, 1959], No. 32295/59. Class 130. [Also in Groups XIV and XXV] A smoker's ashtray 1 comprises a member 3 e.g. of cork for knocking out a tobacco pipe and one or more bosses 2 extending upwardly from the bottom of the tray with bores therein to form pipe-holders. The tray 1, 2 may be supported by suction cups or, as shown, detachably secured to a support plate 5 by pins 4 engaging keyhole slots, the plate being supported by suction cups 6.
Patent GB-1272584-A (GB)
Title: Process for deodorising polymers of unsaturated esters
Inventor: NEWSTEAD RICHARD CHRISTOPHER A
IPC: C08F6/00
Filed: 1968-07-05
Abstract: 1,272,584. Deodorizing polymers of unsaturated esters. FISONS INDUSTRIAL CHEMICALS Ltd. 2 Oct., 1969 [5 July, 1968], No. 32330/68. Heading C3P. The odours associafed with a polymer or blend of polymers obtained wholly or in part by the homo- or co-polymerization of a carboxylic acid ester monomer, in which the alcohol and/or acid moiety contains ethylenic unsaturation, are reduced by treating the polymer or polymer blend with a hydrazine compound of the formula R<SP>1</SP>R<SP>2</SP>NNHR<SP>3</SP> or a hydrate thereof, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> being the same or different and representing H or alkyl, the amount of the hydrazine compound used being the equivalent of from 0À1-5% by weight of hydrazine based on the weight of polymer or polymer blend treated. The polymers may be derived from alkyl maleate, acrylate or methacrylate esters and vinyl esters such as vinyl acetate. They may be homopolymers or copolymers of two or more such esters or copolymers with other monomers such as acrylonitrile, butadrene or styrene. Examples of polymer blends are polymethyl acrylate with polybutyl acrylate; and ethylene-vinyl acetate copolymer with polyethylene. The polymer or blend is suitably treated in the form of an aqueous emulsion, dispersion or suspension.
Patent GB-363058-A (GB)
Title: Processes for the production of porous masses and objects
IPC: C04B38/02
Filed: 1930-10-28
Abstract: 363,058. Porous compositions. DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT VORM. ROESSLER, 7, Weissfrauenstrasse, Frankfort-on-Main, Germany. Oct. 28, 1930, No. 32377. Convention date, Oct. 28, 1929. [Class 70.] Substances capable of generating oxygen are incorporated in cement, plaster, &c. compositions to produce porous cellular masses. Suitable oxygen generating substances are hydrogen peroxide, alkali peroxide, perborate, percarbonate, &c., used in conjunction with catalysts or like substances which promote the generation of gas, e.g. copper or other metal powder, manganese dioxide, organic catalases, &c. Substances which affect the size and distribution of the gas bubbles may also be added, e.g. soap, saponin, albumen, gum arabic and colloidal earths. In an example, 2.1 kg. of calcined gypsum are mixed with 2À6 litres of water and 30 cc. of a 5 per cent solution of soap. To the mixture are added in succession 100 cc. of a 6 per cent hydrogen peroxide solution and 20 gms. of manganese dioxide suspended in 50 cc. of water. Another example uses sodium perborate and blood powder in a Portland cement mix.
Patent GB-1194855-A (GB)
Title: Ammoxidation of Acyclic Alkanes
Inventor: DEWING JOHN
IPC: B01J21/00
Filed: 1967-03-08
Abstract: 1,194,855. Nitriles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 Feb., 1968 [8 March, 1967; 14 July, 1967], Nos. 10921/67 and 32472/67. Heading C2C. Olefinically-unsaturated aliphatic nitriles are prepared by contacting a gaseous hydrocarbon feed comprising an acyclic alkane mixed with ammonia and oxygen with a solid catalyst comprising an oxide of antimony in the presence of a halogen other than iodine at its surface. The process may be carried out at a temperature of 300-700 C. The halogen may be supplied as a volatile halide incorporated in the gas-flow, or as a solid halide mixed with the catalyst. The catalyst may comprise other metal or metalloid oxides in admixture with antimony oxide. Examples prepare acrylonitrile, and methacrylonitrile.
Patent GB-749879-A (GB)
Title: Improvements in braces for personal wear
Inventor: OAKES-WHITE WILLIAM
IPC: A41F3/00
Filed: 1953-11-24
Abstract: 749,879. Braces for personal wear. HUNT & HOLDITCH, Ltd. Nov. 17, 1954 [Nov. 24, 1953], No. 32509/53. Class 141. A pair of braces comprises a slide device 18, Fig. 1, mounted on two strap portions 10, 11, the upper end of the slide having a pair of openings 19, 20 through each of which one strap portion passes, and the lower end having a single opening 9 through which both strap portions pass. The slide device 18 is preferably made of leather or like flexible material, either in the form of a single piece folded at 21 and stitched at 22, or from two superposed pieces secured together at 21 and 22. The slide may alternatively be constructed of metal.
Patent GB-1393412-A (GB)
Title: Heterocyclic substituted xanthone carboxylic acid compounds
IPC: C07D311/82
Filed: 1972-07-12
Abstract: 1393412 Heterocyclic substituted xanthone-2- carboxylic acid compounds SYNTEX (USA) Inc 12 July 1972 [17 May 1972] 32539/72 Heading C2C The invention comprises compounds of the formula wherein R is H or C 1 -C 5  alkyl, X is -O-, -S-, -SO- or -SO 2 - and n is 1 or 2, and non-toxic esters, amides and salts thereof. They may be obtained by (1) cyclizing a compound of formula wherein R<SP>1</SP> is C 1 -C 5  alkyl, to give the corresponding 7-(2-tetrahydrofuryl)- or 7-(2-tetrahydropyranyl)-xanthene-2-carboxylic acid alkyl ester, oxidizing the latter to the corresponding xanthone ester, optionally followed by hydrolysis to give the corresponding xanthone carboxylic acid; or (2) treating a compound of Formula 4 above with methane sulphonyl chloride in base to give the corresponding mesyl compound thereof, oxidizing the latter to give the corresponding xanthone compound, cyclizing the latter to give the corresponding 7-(2-tetrahydrothienyl)- or 7-(2-tetrahydrothiapyranyl)-xanthone- 2-carboxylic ester, optionally followed by hydrolysis to give the corresponding xanthone carboxylic acid; and (3) optionally oxidizing a 7-(2-tetrahydrothienyl)- or 7-(2-tetrahydrothiapyranyl)-xanthone-2-carboxylic acid ester of step (2) to give the 1-oxo or 1,1-dioxo compounds thereof, optionally followed by hydrolysis to give the corresponding compounds of formula (A) above wherein X is -SO- or -SO 2 -; and (4) optionally converting a product of steps (1), (2) or (3) to a non-toxic ester, amide or salt thereof. Examples are given for the production of the compounds. Pharmaceutical compositions comprise compounds of Formula A which may be administered topically, parenterally, orally or by inhalation, in conventional forms, optionally together with other pharmaceutical agents. They are useful for inhibiting the effects of allergic reactions, also as smooth muscle relaxants and as vasodilators. The starting compounds of Formula (4) above are obtained by acylating a xanthene-2- carboxylate ester with the appropriate acyl chloride and AlCl 3 .
Patent GB-1184264-A (GB)
Title: Vehicle Safety Apparatus
Inventor: HASS DAVID PETER
IPC: B60R21/01
Filed: 1968-07-09
Abstract: 1,184,264. Protecting guards. EATON YALE & TOWNE Inc. 9 July, 1968 [17 July, 1967], No.32658/68. Heading B7B. [Also in Division H1] A crash restraint bag is inflated by release of oompressed gas from a container ruptured by an explosive cap fired electrically or mechanically and the control circuit contains at least two switches in series. One switch is an inertiaresponsive switch which may be partiallyreleased by brake pedal application whilst the other switch is actuated, manually, or by deformation of bumper or other body parts, by brake pedal application or by a speed sensing device when the vehicle exceeds a predetermined speed.
Patent GB-1466960-A (GB)
Title: Viscosimeter
IPC: G01N11/10
Filed: 1974-07-24
Abstract: 1466960 Viscosimeter STICHTING INSTITUUT VOOR GRAFISCHE TECHNIEK TNO 24 July 1974 [31 July 1973] 32671/74 Heading G1S A viscosimeter comprises a liquid distributing roller 3 moved to and fro axially, a measuring roller 4 freely rotatably mounted in rolling contact with roller 3, and means for measuring the axial force on the measuring roller. Roller 4 is mounted from a frame 7 by plate springs 5, 6 and the axial force on roller 4 is measured by strain gauges 9, 10 or by a spring tension meter. Roller 3 forms part of a set of liquid distributing rollers 1, 2, 3.
Patent GB-1019223-A (GB)
Title: Improvements in or relating to silver halide photographic materials
IPC: G03C1/43
Filed: 1962-08-27
Abstract: 1,019,223. Photographic materials. EASTMAN CO. Aug. 27, 1962 [Aug. 25, 1961], No. 32856/62. Heading G2C. A silver halide emulsion contains at least one mole per mole of silver halide of a stabiliser compressed having the group and either a radical containing a sulphur, nitrogen or oxygen atom and bonded to one of the carbon atoms in the group, or an electron withdrawing radical such as an amide, keto, nitrile, sulphonyl or carboxyl radical bonded to a beta carbon atom with reference to the sulphur atom in the group, the compound being stable at a pH below 7 but decomposing at pH above 7 to give a thiol which produces a light-stable complex of silver halide. The compound is preferably a thiazole or thiazolise of formula wherein R 1 , R 2 , R 5  and R 6  are hydrogen, alkyl, phenyl or substituted phenyl, R 3  and R 4  are as R 1  or hydroxyalkyl, or in Formula 2 only, R 3  and R 4  complete a benzene ring, X is an anion or an alkyl group with an anion. Alternatively the compound may be of formula where X is anion, R is alkyl, aryl or heterocyclic which may be substituted by hydroxyl, carbonyl, amino or sulphonyl radicals. This material may be imagewise exposed and developed, the development decomposes the compound to give a thiol which stabilises the undeveloped silver chloride to light.