baber/WOPTO huggingface dataset:
Patent GB-196653-A (GB)
Title: Improvements in valves and/or guides therefor
IPC: F01L3/08
Filed: 1921-12-23
Abstract: 196,653. Elverson, A. J. H. Dec. 23, 1921. Leakage, preventing.-A lift valve particularly adapted for use in internalcombustion engines has the spindle provided with a series of split metallic packing rings. In the form shown, two pairs of rings 4 are arranged in grooves in the valve stem and a:re adapted to slide in a guide 3 provided with helical lubricating grooves 5 filled with graphite or the like. The packing rings may be housed in the guide and the lubricating groove formed in the valve spindle.
Patent GB-282756-A (GB)
Title: Improvements in conveyors for glass plates
IPC: C03B35/18
Filed: 1927-12-22
Abstract: 282,756. Naamlooze Vennootschap Mij tot Beheer en Exploit van Octrooien, (Assignees of Zimmerstadt, W.). Dec. 30, 1926, [Convention date]. Drawings to Specification. Charges, conveying. - Relates to the rollers, conveyer belts, link chains, or other form of conveyer which does not have an uninterrupted supporting surface, used for conveying glass plates from rolling or drawing apparatus to, or through, annealing or cooling apparatus. According to the invention, the surfaces of the rollers or belts are fluted, grooved, or pitted in order to reduce the area of contact between the glass and the material of the roller and thus reduce the chilling of the glass due to this contact.
Patent GB-969757-A (GB)
Title: Process for the production of sodium fluoaluminates having a predetermined naf/alf molar ratio
IPC: C25C3/18
Filed: 1960-10-11
Abstract: Sodium fluoaluminates having a predetermined NaF/AlF3 molar ratio in the range of 1.67: 1 to 2.65: 1 are prepared by mixing in the absence of potassium ions an aqueous solution containing two of the ions sodium, aluminium and fluoride with an aqueous solution containing the remaining ion, to obtain an aqueous slurry, the reactants being employed in such proportion that the sodium gram ion: aluminium gram ion ratio is equivalent to the predetermined NaF/AlF3 molar ratio of the sodium fluoaluminate to be obtained and that the quantity of fluoride gram ions is at least stoichiometrically equal to the total sum of sodium and aluminium gram ions, and heating the slurry for a time sufficient to obtain a completely reacted sodium fluoaluminate. The first solution may be of fluoaluminic acid and the second of sodium chloride, or the first may be of aluminium and sodium chloride and the second of hydrofluoric acid.  The product is a mixture of cryolite (Na3AlF6) and chiolite (Na5Al3F14).  In Example 1, a solution of HF and AlF3 is mixed with a sodium chloride solution to give a slurry maintained at 50 DEG  C. for one hour and a product comprising 79.3% cryolite and 20.7% chiolite.  Examples 2 to 4 are similar, while in Example 5 the solutions are of HF and of a mixture of NaCl and AlCl3.6H2O, the product comprising 1.8% cryolite and 98.2% chiolite.  Specification 904,333 is referred to.
Patent GB-181405-A (GB)
Title: Improvements in electric heating apparatus
IPC: H05B3/68
Filed: 1920-12-10
Abstract: 181,405. Nobbs, C. G. Dec. 10, 1920. Electric radiators.-The resistance coil a of an electric radiator is wound upon or supported by an insulating former b with which it has minimum surface contact, and is enveloped by a diffusing-cover c which is grooved on one side to receive the coil and formed with prismatic or fluted surfaces on the other side to diffuse the heat. Fig. 1 shows an element suitable for use with a parabolic or steatite former b, a heat-diffusing cover c of quartz or cast iron enamelled internally, and an externally threaded earthenware plug e, the parts being secured together bv a central bolt f having a perforated cap g. The contact surface between the cover c and plug e is reduced to a minimum by serrating either or both of the contacting surfaces. Fig. 7 shows an arrangement in which the former b is integral with the support e. but they may be separated and either or both of them may be provided with serrated contact surfaces. Further an asbestos washer may be interposed between them. Fig. 9 shows a spirally-arranged wire a supported on a flat former b and covered bv a plate c, having a diffusing surface formed by a series cf prisms. The former b rests on snugs i<1> integral with a cast iron trav e fitted with legs j. Insulating strips are interposed between the former and the tray.
Patent GB-1049658-A (GB)
Title: A process for the finishing or conditioning of textiles in fabric forms
IPC: D06B19/00
Filed: 1963-09-04
Abstract: In a process for treating fabrics for bleaching, dyeing, treatment after printing or for final or advanced finishing processes in which the treated fabric is exposed to a heat treatment, the fabric after impregnation with the treatment medium and its removal from the impregnation bath is adjusted to a moisture content, which in the case of a fabric consisting of natural fibres is relative to the dry weight of the fabric not more than 15% and not less than 10% of the moisture content of the saturated fabric and in the case of a fabric consisting of man-made fibres is at least 10% and not more than 30% and maintained at this moisture content until entry to the heat treatment stage and is then subjected to a heat treatment in a medium consisting of steam or a steam/air mixture under higher than atmospheric pressure, the vapour pressure or partial pressure of which does not exceed 2.5 atmospheres absolute.  The moisture content of the fabric may be adjusted by high-pressure squeezing or wringing or by drying with continuous measurement of the moisture content by automatic control.  Alternatively the fabric may be fully dried and then brought to the required moisture content by controlled damping or spraying.  The drying may be preceded by a diffusion or conditioning stage and the fabric may be stretched or tentered before the heating step.  The impregnation may be carried out by first impregnating the fabric with a neutral treatment solution, carrying out a high-effect squeezing or intermediate drying and then applying a highly-concentrated actual treatment medium additively.
Patent GB-1152943-A (GB)
Title: Improvements in Doors
IPC: E06B3/70
Filed: 1966-08-05
Abstract: 1,152,943. Door panels. CENTROPALHOLDING A.G. 5 Aug., 1966 [19 March, 1966; 2 April, 1966], No. 35089/66. Heading E1J. A door panel comprises a frame of wood or hollow metal members having three sides of a rectangle sandwiched between a pair of sheet metal plates or skins 2, 3 adhered to the frame, defining within the door a volume or chamber containing a filler 17 of honeycomb (cardboard) or foamed synthetic material e.g. based on polyurethacrylester preferably formed in situ, extending from one skin 2 to the other 3, and a closure member e.g. in the form of a strip of inverted U-section, at the underside of the door defining the lower extremity of the chamber and arranged to form a recess extending along the underside of the door between the skins, so that a portion of the bottom of the door may be removed to fit a particular door opening, several constructions of metal skins and the method of fixing them on the frame together with an apparatus for constructing the frame are described.
Patent GB-643201-A (GB)
Title: Apparatus for charging fibrous material into a digester
IPC: D21C7/06
Filed: 1945-12-28
Abstract: 643,201. Digesters. AKTIEBOLAGET KAMYR, and RICHTER, J. C. F. C. Dec. 28, 1945, No. 35095. [Class 64(i)] For charging a fibrous material, such as wood chips, into the liquid-filled space of a digester 1 under pressure, the feeding end of the digester is provided with a feeding screw 7 surrounded by a sieve 6 in a sieve housing 33, and an intermittent charging device, comprising a cylinder 5 or other body rotating or otherwise moving in a housing so as to put a compartment in the cylinder or other body into communication with an inlet and a discharge opening in the housing, is connected by at least two conduits 31, 34, one of which includes a pump 8, with opposite sides of the sieve 6 to form a circulation system, so that circulation of liquid may be maintained by the pump 8 from the charging device to the space occupied by the feeding screw 7 within the sieve 6 and through the sieve into the sieve housing 33 and from the latter back into the charging device. The fibrous material is fed by a conveyer screw into the cells of the cylinder 5 when they are at the position 11. When the cells reach the position 13 the fibrous material is entrained by liquid from the pump 8 and passes with the liquid along the pipe 31. Liquid leaking from the cell at 13 passes to cells at 12, 14, and from the latter is withdrawn by a pump 15 and returned, mixed with fresh make-up liquid from the pipe 28a, to the cell at 13. The make-up liquid and the liquid drained from the cell at 14 may pass into tank 16.
Patent GB-170517-A (GB)
Title: Improved means for keeping records, notes, accounts and the like
IPC: B42F7/14
Filed: 1920-12-14
Abstract: 170,517. Willmott, H. C. Dec. 14, 1920. Boxes. - A case for holding card-index records, memoranda, &c., of the kind provided with a sloping bottom, has the bottom formed by bending in the lower portion of the back as at b and securing its free end to the front of the case as at c. The case may be made made of sheet metal, cardboard, celluloid, &c. Folded papers or cards are used in the case with the folded edge uppermost. Two or more cases may be attached together to form a set.
Patent GB-512106-A (GB)
Title: Improved protective mask
IPC: A61F9/02
Filed: 1938-12-02
Abstract: 512,106. Face shields. LOLDRUP, C. F. L., and LOLDRUP, E. L. Dec. 2, 1938, No. ,35220. Convention date, Dec. 3, 1937. [Class 97 (i)] A shield is composed of two parts 1 of flexible transparent material, joined by a seam 2, with a close fitting rim 3 at the top and an internal partition with a rim 6 to fit below the eyes. The partition comprises two parts joined by a seam 5 and attached to the inside of the mask at 4. The seams 2 and 5 allow folding, and further seams may be provided for this purpose. The upper part of the shield may be coloured. Holes 8 give ventilation. A headband 7 is provided.
Patent GB-522255-A (GB)
Title: Improvements relating to brush-gear of electrical machines
IPC: H01R39/38
Filed: 1938-12-03
Abstract: 522,255. Brush-holders for dynamo-electric machines. TOBIN, C. H. Dec. 3, 1938 No. 35251. Drawings to Specification. [Class 35] In a brush holder of the type in which the brush holder is connected to the brush follower by a helical pressure spring through which passes a stem attached to the follower the stem is graduated to allow the pressure on the brush to be read and is provided with an aperture to which a spring-balance can be attached for the purpose of calibrating the scale. The scale may be adjustable on the stem or read against an adjustable pointer. The invention is described as applied to the brush-holder described in Specification 389,766. The pressure on the spring can be adjusted by means of an insulated cap.
Patent GB-523471-A (GB)
Title: Propulsion mechanism for aircraft and conveyances
IPC: B64C11/00
Filed: 1938-12-03
Abstract: 523,471. Propelling aircraft. IRWIN, H. E. Dec. 3, 1938, No. 35291. Drawings to Specification. [Class 4] The hub of an air propeller is arranged in the restricted part of a double conical cowl ring. A fin is arranged within the rear part of the cowl. to spread the slipstream. The cowl and fin together with the propeller hub are tiltable. The cowl may have an outer casing closed at the front end and air, controlled by valves, may pass between the cowl parts from apertures in the tops of lower wings. The aeroplane may be controlled by the operation of the valves. The front of the aeroplane may have pivoted stub wings held in normal position by pendulums. When the wings turn during a nose dive, valves are operated by the pendulums to control air inlet passages on the upper surface of the aeroplane. The propellers are arranged on the sides of the aeroplane between upper and lower wings, the air above the upper wings being prevented from passing over the fuselage by vertical fins. A stern propeller is arranged in a telescoping cowling one part of which is connected to a rudder carrying the rear landing wheel. The propeller draws air from openings in the upper part of the fuselage through valves. The invention is applicable also to boats, wheeled vehicles &c.
Patent GB-1193766-A (GB)
Title: Vapor Degreasing Apparatus and Process
Inventor: DUNN JAMES LEWIS JR
IPC: C23G3/04
Filed: 1968-07-24
Abstract: 1,193,766. Vapour degreasing apparatus. DOW CHEMICAL CO. July 24, 1968 [July 26, 1967], No. 35383/68. Heading C7E. A vapour degreasing apparatus comprises a container 10 with cooling coils 12 and trough 13 leading to water-separator 14, a sump 15 attached below the level of the main base of vessel 10 and provided with means for mechanical removal of particulate contaminants, as by a sieve 15a, a conduit 16 in communication with said sump, said conduit having its outlet higher than the inlet and having a heater to vapourize at least a portion of liquid introduced into the conduit, the outlet of the conduit being in communication with the interior of said container below the coils 12, and also communicating with a second conduit 18(a) passing through heat-exchanger 20 to a liquid vapour separator 21 having a conduit 23 at its upper end leading to vessel 10, a conduit 24 at its lower end connected to conduit 18a, and valved drain 22. In use, degreasing liquid such as trichloro-ethifene is heated in vessel 10, in which articles to be cleaned are immersed whilst the vapour zone is confined by the cooling coils 12. Soiled degreasing liquid is separated from solid matter in vessel 15, and grease-bearing solvent is part recycled by conduit 16a after heating in steam jacket 17, and part cycled to separator 21, whence vapour of the degreasing liquid passes back to the vessel via 23, whilst dissolved oil and grease remains as a liquid in the vessel 21, and is tapped off at 22 as required.
Patent GB-830940-A (GB)
Title: Improvements relating to film evaporators for liquids
IPC: D01D1/10
Filed: 1956-11-20
Abstract: <PICT:0830940/III/1> <PICT:0830940/III/2> A film evaporator comprises an evaporator chamber, a roller arranged to rotate in the chamber which serves as an evaporation surface, and an element arranged in the chamber to co-operate with the roller and form a wedgeshaped, slot-like space, said element including one or more channels which open(s) into the wedge-shaped space and extend(s) axially of the roller, means being provided for supplying liquid under pressure to, and discharging liquid from the channel or channels.  A cylinder 1, surrounded by a heating jacket 7, houses a roller 2 which is rotated in direction 6 by shaft 4.  Vacuum can be applied to space 3 by pipes 11 and 12.  An element 13 is attached to the housing 1 to form a wedge-shaped space 14 with the roller 2.  An axial channel 16 is arranged in the element 13, preferably where the maximum pressure prevails in space 14.  The liquid is pumped into the top of channel 16 through pipe 15 at a pressure insufficient to force the liquid into space 14 beyond filling limit 18.  The liquid is entrained as a thin layer on roller 2 and carried through evaporator chamber 3, from which vapours are transferred to the condenser (not shown) through vacuum pipes 11 and 12, while excess liquid drains into dish 45 and is removed through pipe 17 from the lower end of channel 16. Modifications are described wherein (i) the heating jacket 7 is replaced by direct electrical heating; (ii) the roller 2 is heated internally; (iii) the element 13 has two channels, inlet 15 joining the first channel 16 in the same position as above and outlet 17 joining the second channel which is in the narrower end of element 13; (iv) a flange divides the evaporator space into at least two zones; (v) two elements 13 are used opposite one another; and (vi) cooling surfaces are arranged in the vicinity of the roller with means for withdrawing the liquid condensate therefrom.  The apparatus is useful for the evaporation, distillation, and rectification of liquids.  It is particularly useful for viscous liquids but can also be used with liquids of low viscosity if a small slot width (e.g. 0.05 mm.) and a high rotational speed of the roller (e.g. 2,800 r.p.m.) are used.
Patent GB-390893-A (GB)
Title: Improvements in or relating to split ball bearings
IPC: F16C33/60
Filed: 1931-12-29
Abstract: 390,893. Ball and - roller bearings. ABLETT, C. A., Woodburn, Wilmslow, Cheshire, KAY, S., Old Hall Cottage, South Wootton, and COOPER ROLLER BEARINGS CO.. Ltd., both in King's Lynn, Norfolk. Dec. 29, 1931, No. 35919. Addition to 334,044, [Class 12 (i), Bearings &c.]. [Class 12 (i).] In a split ball or roller bearing according to the parent Specification, only one of the pair of opposed locating surfaces is made tapering, the other surface of the pair being made plane. As shown, the split race ring 10 has a groove 12 having plane side walls and a tapered face 14. The segmental locating-member has a face engaging the face 14 and a rib 17 having a plane wall engaging a wall of the groove 12. The locating- member at the other end of the race ring 10 may be similar or it may be formed, as shown, with a plane face to engage a plane face 20 on the race ring. Alternatively, the face 14 may be plane and the groove 12 may have one face conical and one face plane.
Patent GB-881506-A (GB)
Title: Sulfamyl-3:4-dihydropyrido-[2, 3-e]-1:2:4-thiadiazine-1:1-dioxides
IPC: C07D513/04
Filed: 1959-10-23
Abstract: The invention comprises dihydro-pyrido-thiadiazines of the formula <FORM:0881506/IV (b)/1> wherein R1 is hydrogen, a C1-5 alkyl group optionally bearing halogen substituents or a phenylalkyl radical and R2 is a hydrogen or halogen atom or a C1-5 alkyl group, and alkali metal salts thereof, and pharmaceutical preparations containing them (see Group VI).  The compounds are prepared by reacting a 2-amino-3,5-disulphamyl-pyridine, optionally bearing a halogen or alkyl substituent R2, with an aldehyde R1CHO or a polymer or functional derivative thereof, e.g. paraformaldehyde, trioxane, hexamethylene tetramine or an acetal, preferably in the presence of a mineral acid.  Alternatively the compounds are made by reducing the C=N double bond in a corresponding pyrido-[2 : 3-e]-thiadiazine-1,1-dioxide, preferably by means of a dimetal hydride such as lithium, potassium or sodium borohydrate.  The products are used pharmaceutically.  Specified compounds include 7 - sulphamoyl - 3,4 - dihydro - pyrido - [2 : 3 - e] - 1,2,4-thiadiazine-1,1-dioxide and its 6-methyl-, 6-bromo-, 3,6-dimethyl-, 6-methyl-3-(2-phenyl-ethyl)- and 6-methyl-3-n-butylderivatives.  Pyrido - [2 : 3 - e]1,2,4 - thiadiazine - 1,1 - dioxides are prepared by reacting a 2-amino-R2-substituted pyridine with chlorosulphonic acid, reacting the resulting disulphonyl chloride with ammonia and treating the 2-amino-pyridine-disulphonamide with formic acid, formamide or ethyl formate.  Alternatively the disulphonyl chloride is reacted with an acid R1COOH and the resulting acylamino - pyridine - disulphonyl chloride is treated with ammonia and cyclised.ALSO:Pharmaceutical preparations having diuretic and natriuretic activity comprise a 3,4-di-hydro - pyride [2: 3 - e] - 1,2,4 - thiadiazine-1,1-dioxide of the formula <FORM:0881506/VI/1> wherein R1 is hydrogen, a C1-5 alkyl group optionally bearing halogen substituents or a phenylalkyl group and R2 is a hydrogen or halogen atom or a C1-5 alkyl group, or an alkali metal salt thereof, in admixture or conjunction with a pharmaceutical organic or inorganic, solid or liquid carrier for enteral or parenteral administration.  The preparations suitably take the form of tablets, dragees, capsules, solutions, suspensions, or emulsions and may contain auxiliary substances such as preserving, stabilizing, wetting or emulsifying agents, salts for varying osmotic pressure or buffers.  Other therapeutically active substances may also be present such as Rauwolfia or Verartrum alkaloids, e.g. reserpine, rescinnamine, deserpidine, germine, protoveratrine, hydralazine and chlorisondamine.
Patent GB-1352719-A (GB)
Title: Electrophotographic production of a lithographic master
IPC: G03G17/08
Filed: 1971-08-02
Abstract: 1352719 Electro-photography XEROX CORP 2 Aug 1971 [5 Aug 1970] 36185/71 Heading G2H A cohesively weak fracturable electrophotosensitive imaging layer is sandwiched between a donor and a receiver sheet, the imaging material being hydrophobic and the sandwich being substantially transparent, and is imagewise exposed by the reflex method under the influence of an electric field across the imaging layer, the donor and receiver sheets are separated under the influence of an electric field across the imaging layer, and one of the resulting images is used as a lithographic master on the original donor or receiver sheet or on a transfer sheet. The respective sheet is hydrophilic or is capable of being made hydrophilic. The separation of the donor and receiver sheets may be effected during or after termination of the exposure. The image is fixed by heat or atmospheric evaporation of volatile components. Transfer may be effected by the action of pressure or heat or the combined action of radiation and an electric field.
Patent GB-744739-A (GB)
Title: Improvements connected with balance centreing apparatus for use in the machining of rotating bodies
IPC: B23B31/00
Filed: 1952-01-23
Abstract: 744,739. Turning; chucks. AVERY, Ltd., W. & T. (Schenck Maschinenfabrik Ges., C.). Jan. 20, 1953 [Jan. 23, 1952], No. 36394/54. Divided out of 744,662. Class 83 (3). In a balance centring apparatus of the kind set forth in Specification 744,662, work 104 of such shape as to be incapable of receiving centring holes is machined for final balance by mounting it in a balanced chuck 101 (Fig. 1) journalled in an oscillatory bearing carried on springs 102 and connected with a vibration pick-up 103 forming part of a balanceanalysing apparatus of the kind described in Specification 715,764, the work being located in the chuck by a screwed member 106 displacing it against a spring-loaded retaining member 107 whereby its position is variable until the axis of inertia of the work coincides with its axis of rotation as indicated by the balancing machine; after which operation I of the machining process is carried out by tool 108. For machining operation II, the work is transferred to a second similar machine in which it is first balanced and then machined by tool 109, after which it is transferred sequentially for operations III and IV to subsequent machines for balancing and machining by tools 111, 112. In similarly machining asymmetrical work 113, Fig. 2, the inherent displacement of the axis of inertia 116 from the axis of rotation 105 is compensated by counterbalancing weight 117 carried by the chuck whose moment about the axis of rotation is equal and opposite to the unbalance moment of the work. For long work, balance centring in two spaced bearing planes is necessary prior to each machining operation.