baber/WOPTO huggingface dataset:
Patent GB-903788-A (GB)
Title: Improvements in or relating to double-acting rotary displacement pumps
IPC: F04C5/00
Filed: 1961-04-18
Abstract: 903,788. Rotary pumps. EISELE & SOHNE, FRANZ. April 18, 1961 [April 20, 1960], No. 13996/61. Class 110 (2). A rotary pump comprises a flexible internally toothed belt b supported on an elliptical track inside a housing (not shown), and gear-wheel concentric with the belt, its teeth fully engaging those of the belt at diametrically opposed points, thereby defining two working chambers. The elliptical track is lubricated by the pumped liquid which passes through holes c which are formed in the thickest parts of the belt.
Patent GB-732551-A (GB)
Title: Improvements relating to silicon carbide aggregates
Inventor: BIRD PHILIP LORRAINE
IPC: B24D3/14
Filed: 1952-06-04
Abstract: Aggregates are prepared by mixing comminuted silicon carbide, a substantially salt-free silica sol, and a finely divided ceramic raw material which is reactable with the sol to form a ceramic matrix, drying and firing.  Suitable sols are described in Specifications 645,703, 649,897 and 662,423, [all in Group III]. Suitable ceramics are refractory oxides, e.g. alumina, zirconia; refractory silicates; high pyrometric cone clays; or mixtures of such clays with an alkali metal silicate.  A gelation accelerator, e.g. magnesia or ammonium chloride, in small amount can be used to speed setting of the mix. Hardness of the aggregates, which may be used as refractories or for grinding wheels, depends on the grain size of the silicon carbide. Specifications 607,696 and 654,850, [both in Group III], also are referred to.
Patent GB-254288-A (GB)
Title: Process for purifying gases from sulphur
IPC: C10K1/34
Filed: 1926-06-03
Abstract: 254,288. Fischer, F., and Tropsch, H. June 29, 1925, [Convention date]. Materials for purifying.-Gas is purified from sulphur by converting the carbon-sulphur compounds into sulphuretted hydrogen by means of contact substances in the presence of hydrogen, and absorbing the sulphuretted hydrogen, metals being used which have been brought into a finely divided state by admixture with substances which remain solid at the reaction temperature of 400‹ to 600‹ C., such as inorganic bases or acid anhydrides. Metals such as lead or tin the melting point of which is lower than the reaction temperature are preferably employed. Lead chromate giving a mixture of chromic oxide and finely divided lead may be used, or silicates or aluminates or salts such as calcium-plumbate in which the effective metal is contained in the basic portion of the salt. Small quantities of copper or copper oxide to increase the action and infusorial silica to enlarge the surface may be employed, or an organic salt such as acetate of lead may be spread upon a porous slab of clay or earthenware.
Patent GB-1449109-A (GB)
Title: Hand weaving apparatus
IPC: D03D29/00
Filed: 1975-04-07
Abstract: 1449109 Hand looms H F L GENTIL 7 April 1975 [12 April 1974] 14103/75 Heading DIE A hand loom comprises two sets of needles 2 1 -2 13  and 2 2 -2 14  the ends of one set being held by a holder 3 and the other by a holder 5 so as to be relatively movable in a guide 1, the end of each needle away from its hook having an eye (not shown) into which a yarn may be threaded. A weft yarn 17t is threaded on to the needles by relative movement thereof as shown in Fig. 7. When sufficient weft has been put on in this way a needle is removed from its holder, a warp yarn inserted into its eye and it is then withdrawn to pull the warp through to replace the needle. This process is carried out for each needle in turn. For Figures see next column
Patent GB-893328-A (GB)
Title: Process for the preparation of a diaphragm for an electrolytic system
IPC: H01M50/429
Filed: 1958-05-02
Abstract: A pervious cellulosic material is impregnated with an aqueous solution of polyvinyl alcohol containing a water-soluble and oxidation resistant plasticiser and a water-soluble cross-condensation agent and then dried.  A cross-condensation agent is defined as an ester of an aliphatic dibasic acid containing 4 to 14 carbon atoms within the acid radical.  The pervious cellulosic material may be permeable or semi-permeable and may consist of regenerated cellulose, cellulose hydrates, ethers, esters, mixed esters and ethers, substituted esters or sheets of woven or felted cellulosic fibres, e.g. paper or cotton felt.  The aqueous solution may be applied to the pervious cellulosic material by spraying, dipping, calendering or brushing and drying may be accomplished by exposure to air or may be accelerated by the application of heat from radiant or conductive sources.  Specified plasticizers are di- and tri-hydroxy alcohols, e.g. diethylene glycol and glycerol, which have previously been subjected to oxidation, e.g. by treatment with H2O2, KMnO4 or hot air, propylene glycol and water-soluble polyethylene glycols.  Specified cross-condensation agents are diethyl glutarate and dibutyl sebacate.  The aqueous polyvinyl alcohol may be derived from at least 50% hydrolized polyvinyl acetate.  Examples are given. The products are useful as diaphragms in electrolytic systems.
Patent GB-683972-A (GB)
Title: An improved mask for lighting fittings
IPC: F21V11/00
Filed: 1950-06-07
Abstract: 683,972. Masks for lighting fittings. ZWICK, F. June 7, 1950 [Dec. 5, 1949], No. 14169/50. Class 75(iv) A cellular louvre for a lighting fitting is made up of elements 1, 2, J each having three or four walls 4 at right angles and adapted to be connected together at their lateral extremities by peg and socket means. The walls of each element radiate from a common intersection and are formed at their outer edges either as cylindrical pegs 5 or as cylindrical sockets 6. In each of the three-wall elements 1, '3 the two in-line walls are both formed similarly at their outer edges, for example as pegs, and the third wall is formed differently, i.e. in the example as a socket. In a four-wall element 2 the outer edges of in-line walls are formed similarly, one pair having sockets, the other pair pegs. The elements are moulded from a transparent or translucent artificial thermoplastic material and they may be differently coloured. The walls of the elements may be uneven, for instance of zig-zag form. The elements can be assembled so that some of the pegs do not wholly enter the sockets to provide a louvre with stepped upper and lower surfaces. Cement may be applied to the pegs and sockets.
Patent GB-501564-A (GB)
Title: Improvements in powder applicators
IPC: B05B11/06
Filed: 1938-05-12
Abstract: 501,564. Powder applicator nozzles. SCOTT & BROWNE. May 12, 1938, No. 14192. Convention date, May 12,1937. [Class 81 (ii)] ' [Also in Group XVII] A device for applying powder to cavities of the body comprises an air blower such as a conventional bulb, a'stem 11, Fig. 2, leading from the bulb to a head which is insertable in the cavity and comprises two parts 14, 16 connected together and enclosing a cartridge 22 of powder.. The latter is formed of a tube of cardboard &c. with a wrapper 24, Fig. 7, which is tucked into the ends of the tube so as to close the latter. The head is formed with a projection 34 which, as the two parts of the head are screwed together, presses on and forces open one end of the cartridge, and the closure at the other end of the cartridge is forced into a space 44 adjacent the discharge orifice by pressure of the powder when the device is operated. In a modified head. the outer end of the cartridge is forced open by a projection similar to the projection 34.
Patent GB-1468744-A (GB)
Title: Process for the preparation of foundry moulding sand
IPC: B22C1/02
Filed: 1974-04-01
Abstract: 1468744 Foundry sand SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 April 1974 [3 April 1973] 14293/74 Heading C3N A process for the preparation of a foundry moulding sand comprises mixing with sand clay and water and an additive or additives which is or are at least partially gasified under the thermal conditions of the casting operation, wherein said additive or one of said additives is a powdered precipitation bitumen. The precipitation may be obtained by treating a residual petrol - eum fraction with propane or a blown bitumen. The precipitation bitumen may be mixed with coal dust or with another known foundry dust. A mixture of two or more different precipitation bitumens in powder form may be added. One or more bitumens not obtained by precipitation may be added in powder form. The mean particle size of the powdered precipitation bitumen is preferably less than 0À5 mm., e.g. 0À01- 0-15 mm. and the amount is preferably within the range 0À1-10% by weight. The moulding sand preferably comprises 2-8% by weight water and 5-12% by weight of bertonite clay. The powdered precipitation bitumen may be added to the moulding sand as a premix with at least part of the clay that is also to be added. Comparative Examples describe foundry sands containing coal dust, polystyrene powder, powdered petroleum resin and an anthracene oil.
Patent GB-1410543-A (GB)
Title: Hybrid gas turbine engine
IPC: F02M25/12
Filed: 1973-03-26
Abstract: 1410543 Gas turbine plant; combustion chambers NISSAN MOTOR CO Ltd 26 March 1973 [1 April 1972] 14376/73 Headings F1G and F1L A gas turbine engine comprises a combustion chamber 32 to which is fed a solid or semi-solid fuel 34, and high temperature oxygen produced from a hydrogen peroxide source 10 via a catalyst chamber 26, the combustion products being directed to a cooling chamber 46 via a nozzle 44a surrounded by an ejector tube 48 arranged to draw in cooling air which is mixed with the combustion products and directed against the turbine blades 54. The fuel is a solid rod fed by an electric motor 40 and worm gear 38, or be in the form of gelled polyethylene and acryl resins and be fed by gravity. As shown, the turbine rotor 54 drives a main shaft 58 to drive a power transmission 62 and a generator 74 to charge the battery. At starting, the generator 74 may be utilized to drive the turbine. Again, Fig. 2, (not shown), a fan (90) drives cooling air into the ejector tube 48, and oppositely inclined inner and outer swirl vanes (88), (86), respectively, are arranged adjacent the outlet 44a to ensure complete mixing by rotating the combustion products and air in opposite directions. In Fig. 4, (not shown), the turbine 54 is arranged coaxially with the outlet 44a and is provided with guide vanes (96) controlled in accordance with varying operating conditions of the gas turbine engine. The blades may also be used to provide engine braking.
Patent GB-1387905-A (GB)
Title: Interferometry readout of phase information
IPC: G01J9/02
Filed: 1972-03-28
Abstract: 1387905 Interferometry XEROX CORP 28 March 1972 [1 April 1971] 14505/72 Heading G1A [Also in Division G2] In a method of detecting phase information about a transparent object 2, coherent or substantially coherent light is focused on the object from which light is reflected from the upper and lower surfaces 14, 15 to form an interference pattern 13a representative of the phase information. The light, which may be polychromatic or from a laser, passes a continuous frequency interference filter 3 which passes a continuous spectrum of wavelengths each of temporal coherence length greater than the thickness of object 2. The focused light may be scanned along two orthogonal axes 34, 35, Fig. 2, and the interference pattern received by a photo-detector e.g. a photo-multiplier. If the signals are fed to amplifiers 43-45 they can be recorded at 46. This in turn can be used to feed a cathode ray tube to give a visible output. Such phase differences may be thickness variations in the object or refractive index variations within the object. The transparent object 2 may be a plastics sheet forming a line copy image, a hologram or data for electronic data processing, or have a plurality of deformations of fixed spatial frequency and varying amplitude.
Patent GB-1310321-A (GB)
Title: Treatment of sludges resulting from sewage pruification
IPC: C02F11/15
Filed: 1971-05-12
Abstract: 1310321 Dewatering sludge PROREA 12 May 1971 [14 May 1970] 14571/71 Heading C1B and C1C Sewage sludge (e.g. primary and/or secondary sludge) is degasified under vacuum and dehydrated by filtration or centrifuging. Prior to being degasified the sludge may be anaerobically digested, subjected to a high frequency alternating electric and/or electromagnetic field and have flocculants (e.g. ferric chloride and lime) added thereto. The product may be used as a fertilizer.
Patent GB-568110-A (GB)
Title: Improvements in or relating to electric heating apparatus for billets and the like
IPC: C21D1/40
Filed: 1943-09-06
Abstract: 568,110. Transformers. OMES, Ltd.,. and ROGATI, C. Sept. 6, 1943, No. 14583. [Class 38 (ii)] [Also in Group XI] A billet 11 is clamped between a fixed electrode 12 and a movable electrode 13 mounted on a hydraulic ram 54. The electrodes are extended by conductors 14, 15 to a position near the centre of the billet, where terminal blocks 16, 17 are provided to receive the ends of secondary windings 18, 19 of two transformers 22, 23. Each transformer comprises a shell-type laminated core 24, primary winding 26 and secondary 20. The secondary consists of laminations of copper foil extending directly into engagement with the terminal blocks 16, 17. The extensions are held close together by an insulating ring 30. The two secondary windings are located radially opposite the axis of the billet, and additional transformers may be located in other radial planes. In a modification, the transformer secondary comprises a bundle of stranded copper cables, the ends of which are soldered into thimbles which are soldered into recesses in the terminal blocks:
Patent GB-1105263-A (GB)
Title: Apparatus and method for bending rods or tubes
Inventor: REDDING ROBERT JAMES
IPC: B29B13/02
Filed: 1965-04-06
Abstract: 1,105,263. Bending rods or tubes. CONSTRUCTORS JOHN BROWN Ltd. 6 April, 1965, No. 14594/65. Heading B5A. A plastics rod or tube is bent to a predetermined shape by feeding a predetermined length through a ring, heating in the vicinity of the ring and moving a member, e.g. a plate, across the exit face of the ring to contact and bind the rod or tube and repeating the operation along its length until the rod has assumed the required configuration. Radio frequency heating may be used or hot air may be blown through holes on the side of the ring. Several bending members may be provided to move in different directions across the face of the ring, and they may be controlled in operation by a punched or magnetic tape. The punched tape may be produced by feeding into a computer information derived in building a pilot structure from the tube, e.g. chemical plant, the computer modifying the information to provide for valves, flanges, drains &c. The plastics material may be polystyrene or P.V.C.
Patent GB-1527185-A (GB)
Title: Extraction resistant polyolefin stabilisers
IPC: C08L77/00
Filed: 1977-04-06
Abstract: 1527185 Polymeric stabilizers DART INDUSTRIES Inc 6 April 1977 [26 April 1976] 14602/77 Headings C3K C3M and C3P Complexes are formed between (1) a polymer having groups derived from N-vinyl pyrrolidone, e.g. a graft copolymer of such a monomer on to a polypropylene backbone, and (2) a hindered phenolic antioxidant, e.g. the pentaerythritol tetraester of 3-(3,6-di-t-butyl-4-hydroxyphenyl) propionic acid.  The complexes are used to stabilize polyolefin resins, e.g. polypropylene, preferably in conjunction with a secondary stabilizer, e.g. a hydrazine or hydrazide, and optionally also with a synergist, e.g. dialuryl or distearyl thiodipropionate.
Patent GB-388362-A (GB)
Title: Improvements in and relating to protective systems for electric transmission lines
IPC: H02H1/00
Filed: 1931-05-18
Abstract: 388,362. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Fallou, J.) May 18, 1931, No. 14631. Convention date, May 16, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 38 (v).] Polyphase electric transmission lines or a section thereof are protected by injecting into each of the conductors of the line or section one phase of balanced high-frequency oscillations and utilizing the out-of-balance current which originates in the polyphase oscillations (in the event of a fault developing on the line) to energize a protective relay adapted to open a circuit-breaker to disconnect the line from the supply. Tuned stopper circuits are provided to prevent the superposed frequency trespassing on adjoining lines or sections. A circuit with circuit-breakers at each end may have a polyphase oscillation-generator connected at each end thereof, the generators being adapted to operate at different frequencies, and the necessary stopper circuits being provided.
Patent GB-1344334-A (GB)
Title: Wave interference silencing systems
IPC: F01N1/06
Filed: 1971-05-13
Abstract: 1344334 Silencers GENERAL MOTORS CORP 13 May 1971 [22 May 1970] 14674/71 Heading F1B An exhaust gas silencing system comprises an exhaust passage including attenuating sections (20a...d) Fig. 1 (not shown) coupled in series with a low acoustical impedance volume (22a...d) succeeding each attenuating section, a pair of discrete gas flow paths in each attenuating section which transit with equal vibrational energy and gas flow to produce attenuation of predetermined frequencies as the gas flows unite at the succeeding volume. The attenuating sections comprise an inner conduit 30, Fig. 2, a helical baffle 46 and a helically-wrapped outer sleeve 32, the ends of the latter being telescoped into the ends of conduits 22'. The method of calculating the flow areas of the inner and outer flow paths and the ratio between their lengths is described so that only the overall length of the particular attenuating section controls the attenuation of a particular frequency band. Thus the desired range of frequencies is attenuated by arrangement of a series of attenuating sections of appropriate lengths.
Patent GB-719420-A (GB)
Title: Improvements relating to clothes-drying apparatus
IPC: D06F58/10
Filed: 1952-06-11
Abstract: 719,420. Clothes-drying apparatus. OPPERMAN, E. G. May 28, 1953 [June 11, 1952; June 30, 1952], Nos. 14710/52 and 16410/52. Classes 34(1) and 34(2) Clothes-drying apparatus consists of a cabinet with a tabletop lid 1 and containing supports 7 secured by bars 8 to spindles 9 and having slots 14 for rails 15 to carry the clothes, infra-red radiant electric heaters 17 with reflectors 18 and a fan 24 directing air on to the clothes to effect or assist rotation of the supports. - A wire mesh grid 22 prevents the clothes from contacting heaters 17 and air can enter the cabinet through openings'27 and escape through openings 28. A time switch may be provided.
Patent GB-760361-A (GB)
Title: Improvements in or relating to cortisone and esters thereof
IPC: C07J5/00
Filed: 1954-05-19
Abstract: The invention comprises 4,21-dibromopregnan-17a -ol-3,11,20-trione, and a process for the preparation of cortisone and its esters by oxidizing and brominating 21-bromopregnane-3a ,17a  - diol - 11,20 - dione to produce 4,21 - dibromopregnan - 17a  - ol - 3,11,20 - trione, which is reacted with a hydrazine derivative to form a 3-hydrazone with simultaneous dehydrobromination to produce a 4 : 5 double bond, then splitting the hydrazone, and either saponifying the 21 - bromo - D 4 - pregnene - 17a  - ol - 3,11,20-trione obtained to yield cortisone, or producing cortisone esters by reaction with an alkali metal or silver salt of an organic acid containing a maximum of six carbon atoms.  The initial oxidation and bromination steps may be effected by treatment with an N-bromo-imide, -amide, or -hydantoin in the presence of an oxidizable alcohol, and specified hydrazine derivatives are 2,4-dinitrophenylhydrazine and semicarbazide.  The cortisone esters are preferably obtained from the 21-bromo derivative by treatment with sodium iodide followed by reaction with an alkali metal or silver salt of the appropriate organic acid.  In examples: (1) 21-bromopregnane - 3a ,17a  - diol 11,20 - dione is treated with N-bromosuccinimide in aqueous t.-butanol to yield 4,21-dibromopregnane-17a -ol-3,11,20-trione, which is also prepared (2) from 21 - bromopregnane - 17a  - ol - 3,11,20 - trione and N-bromosuccinimide.  (3) The dibromotrione is converted to its 3-semicarbazone, which is then treated in aqueous acetic acid with pyruvic acid to produce 21-bromo-D 4-pregnene-17a -ol-3,11,20-trione, which is then reacted (a) with sodium iodide in acetone containing a little water, followed by refluxing with potassium acetate solution to give cortisone acetate, or (b) with methanolic potassium hydroxide to give cortisone.  Specification 760,362 is referred to.
Patent GB-670516-A (GB)
Title: Improvements in artificial arms
IPC: A61F2/58
Filed: 1949-06-02
Abstract: 670,516. Artificial arms. MAGUTH, M. J. June 2, 1949 [Jan. 27, 1949], No. 14792/49. Class 81 (ii). In an artificial arm fingers are pivotally mounted on a hollow palm member which is rotatably attached to a wrist member, and an axially slidable plunger extends through the palm and wrist for operatively moving the fingers. In one embodiment described the two fingers. 13, 14, secured by means of a knurled nut 59a are pivoted on a palm member 10, and are pressed together, by means of links 22, 23, when a pull is exerted on a plunger 21. They may be locked, while holding an object, by a toothed rack 29, which, by means of a hand lever 32, is moved forward to engage a rack 28, mounted to move with the finger 13. The palm member has a spigot 16 by means of which it is mounted for rotational movement in a wrist member 11. It is held against axial movement by jaws engaging a peripheral groove and is retained in a given rotational setting by a spring-loaded bolt 47 which is located in one of a series of holes in the base of the palm member. A lever 55, pivoted in a bracket 52, is connected to the plunger 21 so that the fingers may be actuated by cord or link work. The Specification also describes an additional fitting, for attachment when amputation is above the elbow, and various types of detachable finger members.