baber/WOPTO huggingface dataset:
Patent GB-1437479-A (GB)
Title: Humidifiers
IPC: F24D19/00
Filed: 1973-06-04
Abstract: 1437479 Humidifying devices for space heaters E GREASLEY 18 June 1974 [4 June 1973] 26587/73 Headings F4S and F4W A humidifying device for use in conjunction with a radiator or a gas fire, consists of an elongate water container with holes (e.g. 18, Fig. 1 or 35, Fig. 4) above the water level therein to permit the escape to atmosphere of water vapour, said container having a first surface 8, Fig. 1 or 33, Fig. 4, and a second surface 10, Fig. 1 or 34, Fig. 4, extending at an angle of less than 90 degrees to the first surface. In use, the container is mounted above the radiator or gas fire with the first surface substantially horizontal serving as a shelf, and with the second surface projecting outwardly and downwardly to form a deflector for the rising air. As shown the holes 18 or 35 are formed in the inclined surface of the container but according to the provisional Specification they may be in the horizontal surface. In Fig. 1, the surface 10 of the container is arcuate and is in contact with the upper surface of an associated radiator 4. In Fig. 4 the container has a flat base 31 intended to rest upon a flat upper surface of an associated gas fire 36.
Patent GB-693381-A (GB)
Title: Improvements in mechanism for feeding granular or powdered material from a relatively low pressure to a higher pressure
IPC: F23K3/00
Filed: 1950-11-02
Abstract: 693,381. Pneumatic conveyers. INCANDESCENT HEAT CO., Ltd., and EDWARDS, T. Oct. 29, 1951. [Noc. 2, 1950] No. 26708/50. Class 78 (i). In means for feeding granular or powdered material from a region at relatively low pressure to one at a higher pressure of the kind having a rotatable pocketed carrier plate a each pocket a<SP>1</SP> of which is brought successively during rotation into position beneath a supply pipe o to receive material at relatively low pressure and between ports f<SP>3</SP>, e<SP>3</SP>, the former of which admits a blast of gas at high pressure and the other of which is connected to the high pressure conveying system h through which the material is to be conveyed, sealing pads e, f of a rotary character are provided at the blast receiving position. The pads are held in contact with the plate by springs e<SP>1</SP>, f<SP>1</SP> or by pneumatically or hydraulically actuated means and the ports e<SP>a</SP>, f<SP>3</SP> are formed in them. They are driven from the shaft b of the plate a by gearing k, l and are designed to cover at least three pockets a<SP>1</SP> at a time. The pads may be of bronze, aluminium or lignum vitae and the plate a of harder material such as chromium plate. nitrogenisable or special alloy steels. The bottom of each pocket is closed by a lightly spring-loaded poppet valve a<SP>2</SP> or by a porous filter. The plate a rotates between cast iron or bearing metal discs m, n which are spaced from the housing c and are urged inwards by springs, e.g. p. A scavenging port is provided to release the air from a pocket after discharge of the material.
Patent GB-1280486-A (GB)
Title: Multilevel compressed index generation
IPC: G06F17/30
Filed: 1970-06-03
Abstract: 1280486 Information retrieval INTERNATIONAL BUSINESS MACHINES CORP 3 June 1970 [26 June 1969] 26724/70 Heading G4C  Means for generating a multi-level compressed index comprises means for assembling a plurality of boundary pairs of uncompressed keys, means for assigning a respective pointer to each of the uncompressed key pairs, the pointer representing the location of a compressed index block represented by the uncompressed key pair, and means for compressing uncompressed keys.  A sorted index of uncompressed keys, each accompanied by a pointer to associated data, is read from an I/O unit a block of keys at a time (with their pointers) into a low store, the last key of each block and the first key of the next (without their pointers) being also placed in a high store where a pointer (selected sequentially from a pointer table) is appended to each such pair of keys. Each block of keys in the low store is compressed as in Specification 1,280,484 (referred to) and passed to an I/O unit to make room for the next block of uncompressed keys, the compressed block forming part of a first level of a compressed index. When a block of uncompressed keys has accumulated in the high store, it is passed to an I/O unit as a block of an uncompressed second level of the index. When the original sorted index has been completely processed in this way, the uncompressed second level of the index is read into the low store a block at a time, with the last two uncompressed keys of each block being also placed in the high store. Appending of pointers, compression, &c. take place as with the previous level, to give a compressed second level and an uncompressed third level. The latter is then used like the uncompressed second level, and so on, until the last generated compressed level has a predetermined number of blocks (normally one) or alternatively until a predetermined number of levels has been generated if this point is reached first. Each pointer in any level above the first, points to a corresponding block in the next lower level. A pointer to the single block of the highest level may be appended to a stored name of the index. Searching in the generated index requires only one block per level to be searched, and usually only a part of that since the search in a given compressed block ends whenever the search argument is lower than a compressed key with which it is compared. Magnetic tape, disc or drum are mentioned for the I/O units.
Patent GB-1032752-A (GB)
Title: Improvements in and relating to steam reforming processes
Inventor: DOWDEN DENNIS ALBERT
IPC: C01B3/40
Filed: 1962-07-13
Abstract: A process for steam reforming hydrocarbons boiling at up to 350 DEG C. comprises reacting them with steam at a temperature in the range 450 DEG  to 1000 DEG  C., in the presence of a catalyst comprising Ni or Co present as the metal or as a compound reducible to the metal, a refractory support material, and 0.001 to 0.5% by weight of a platinum group metal present as the metal or as a compound reducible to the metal.  Preferably the process is operated for synthesis gas or low CH4 content gas production at 600-1000 DEG  C., 1-50 atmospheres and a steam ratio of 1.5-6.0. Alternatively, gases containing substantially large quantities of CH4 and useful in town gas manufacture may be made at 450-700 DEG  C., a pressure above 100 p.s.i.g. and a steam ratio of 1.5 to 4. Examples are given.ALSO:A steam reforming catalyst composition comprises Ni or Co present as the metal or a compound reducible thereto, a refractory support material and 0.001-0.5% or platinum group metal present as metal or compound reducible thereto.  Platinum group metal is defined as Ru, Rh, Pd, Os, Ir and Pt.  Additionally there may be present an alkali or alkaline earth metal compound. The refractory support may be an oxide of Mg, Ca, Sr, Ba, Al, Si, Ti, Zr, Th or Cr or mixtures thereof.  Alternatively an aluminous cement e.g. "Ciment Fondu" (Registered Trade Mark) may be used. Examples are given.
Patent GB-500708-A (GB)
Title: Improvements in or relating to frames for spectacles
IPC: G02C11/02
Filed: 1938-09-15
Abstract: 500,708. Spectacles. HENDERSON, D. H. Sept. 15, 1938, No. 27006. [Class 97 (i)] The lower parts 1 of the rims are formed of glass clear material, and the upper ports la are formed from or coated with a coloured, translucent or opaque, material. The frame may bo formed from a block built up of a clear portion 4 and a coloured portion 5 cemented along faces inclined to the edges of the block.
Patent GB-599953-A (GB)
Title: Improvements in gaskets for internal-combustion engines and the like
IPC: F16J15/12
Filed: 1945-10-16
Abstract: 599,953. Joint-making packing. SOC. ANON. LE JOINT METALLOPLASTIQUE FRANCAIS. Oct. 16, 1945, Nos. 27061 and 27062. Convention dates, Oct. 19, 1944, and Jan. 31, 1945. [Class 122 (iii)] A gasket for internal-combustion engines &c. comprises a layer of plastic material 3 enclosed between two sheet-metal plates 1, 2 wherein the outer edges of the sheet-metal plates are bent at right angles towards each other, the height of the bent portion being equal to or slightly exceeding half the thickness of the gasket. The edges, which may overlap or be formed by abutting flanges, are welded together. The bends have a radius of curvature equal to half the thickness of the gasket. The apertures in the gasket may be similarly formed.
Patent GB-383254-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D5/30
Filed: 1932-09-29
Abstract: 383,254. Steam turbine blades. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Doran, J. H. ; 242, Ballston Avenue, Scotia, New York, U.S.A.) Sept. 29, 1932, No. 27069. Convention date, Oct. 1, 1931. [Class 110 (iii).] Straddle t y p e blades 8 having root projections 11, 12, Fig. 5, are assembled on the wheel rim 7 so as to leave spaces 15 which are filled with welding material.
Patent GB-633072-A (GB)
Title: Improvements in or relating to the treatment of metallic bearing surfaces
IPC: F16C33/12
Filed: 1947-10-09
Abstract: 633,072. Electrolytic production of bearing surfaces. MONOCHROME, Ltd., and WILSDON, S. C. Oct. 9, 1947, No. 27106/46. [Class 41] [Also in Group XXXIV] Recesses are produced in a metallic bearing surface by the removal of metal from the surface mechanically as by drilling or milling or by etching by chemical or by electrochemical means, the parts which are not required to be etched being masked by any suitable stopping off composition. A metallic layer suitable for a bearing surface is then deposited by electrodeposition or by an interdiffusion method. For electroplating, e.g. with chromium, the liner 3 with the recesses having been made therein is mounted in a two part clamp 4 having vertical rods 6 secured thereto which are fixed top and bottom plates 7, 8 and intermediate slate 9. On plate 8 is mounted dielectric pad 10 having vertical spigot 11 to support a steel bar 12 supported also at its upper end in rubber bush 13 in plate 9. Bar 12 is attached to a cable supply and forms the anode. Plate 7 carries a clip 15 to provide a support for the assembly within the electrolytic bath, the liner 3 forming the cathode. Specification 561,788 is referred to.
Patent GB-962291-A (GB)
Title: Pressure control arrangement for dispensing nozzle
IPC: B67D7/48
Filed: 1962-07-16
Abstract: 962,291. Valves. SYMINGTON WAYNE CORPORATION. July 16, 1962 [July 18, 1961], No. 27180/62. Addition to 929,735. Heading F2V. The automatic dispensing nozzle claimed in the parent Specification is modified to prevent premature closing of the main flow valve when fluid flow is reduced, just prior to shut-off, by a valve 15, Fig. 7, which is pre-set manually and actuated mechanically from the indicator mechanism of the pump. With the valve 15 in the low flow rate position shown a by-pass 114, Fig. 4, in the non-return valve 74 of the nozzle facilitates the maintenance of the predetermined minimum pressure to hold the main flow valve open. The by-pass 114 may have a diameter of 1/16, inch with a tolerance above or below of 0.005 inch when the low flow rate area of the valve 15 is equal to that of a circular passageway with a diameter of <SP>3</SP>/ 32  inch. Rotation clockwise of a cam 112 closes the valve 15 altogether while reverse rotation, on commencement of delivery, lifts a member 102 to permit full flow.
Patent GB-271615-A (GB)
IPC: C23F1/08
Abstract: 271,615. Robertson, R. R. April 20, 1926. Etching-apparatus. - In etching-machines of the type in which a printing-plate or other object to be etched is subjected to the action of fluid-spraying devices, such as paddles 13 rotating in a closed vat 1, and in which pure air is supplied to aerate the fluid, the air is introduced into the vat by means of a fan 27, which joins an outlet pipe 29 for the vat 1 and by suction withdraws the foul air out of the vat through an outlet 30 and causes air to be drawn in through an inlet 32. The inlet and outlet are so arranged that the air passes over the paddles 13. The vat 1 is removably cradled in a frame 2 provided with corner guards 3, 4, which confine the vat in position. The paddles 13 revolve in opposite directions and direct the fluid against a plate slipped into grooves in a lid 7 carrying a hinge pin 6, which is supported between jaws 5 at each end, and, when raised, is adapted to be pulled forward so as to rest in grooves 12. The lid may then rest against the pipe 29, and the fluid drips back into the vat, while the plate is incidentally presented for inspection.
Patent GB-186936-A (GB)
Title: Method and mechanism for centrifugally separating substances
IPC: C11B13/00
Filed: 1922-10-07
Abstract: 186,936. Sharples Specialty Co., (Assignees of Jones, L. D.). Oct. 7, 1921, [Convention date]. Density separators.-In a centrifugal machine for separating two substances and employing a carrier liquid, the substances to be separated are supplied to the inner zone of the centrifugal rotor and the carrier liquid is supplied to the outer zone and is held in the rotor during the process. The form shown is used for the separation of wax from oil, a solution of calcium chloride being used as the carrier fluid. This fluid is fed from the conduit 6 into the channel 7 round the neck of the bowl 1; then it flows through channels 8 into the bowl and is formed into a stratum against the wall by centrifugal force. Any excess of fluid overflows from the channel 7 into the cover 21. The stratum of fluid remains in the bowl during a run of the machine and it is only necessary to replace loss by leakage. The chilled oil containing precipitated wax is led into the bottom of the bowl through the axial inlet 11. The wax is separated from the oil and floats off from the brine and is discharged through passages 12, 13, 14. The oil forms an interior zone in the drum and is discharged through the passages 16, 17, 18. In the modification shown in Fig. 4, the carrier liquid is supplied to the conduit 27 from which it is discharged to the annular channel 30 communicating through the passages 31 with the bowl. A stratum of liquid is formed in the bowl and its thickness remains constant for the normal speed. The separated wax is discharged through the passages 31 and channel 30, and the oil passes through the pasages 34, 35.
Patent GB-188175-A (GB)
Title: Improvements in or relating to locking switches for magneto circuits of vehicles driven by internal combustion engines
IPC: B60R25/04
Filed: 1921-10-14
Abstract: 188,175. Hailstone, J. E. Oct. 14, 1921. Switches, quick-make.- In locking switches for the magnets circuits of motor vehicles, a series of plate-like members A automatically engage a reduced portion of a plunger B when the latter is withdrawn to open the circuit. The plunger B carries contacts C which bridge the fixed contacts C<1>, and the plates A, which are threaded on the plunger B, are pressed down by springs A<2>. The plates A are formed with projections at their lower ends which may vary in size and shape and are raised so as to allow the switch to be closed, by the insertion without turning of a correspondingly shaped key into the opening D<1>.
Patent GB-1213930-A (GB)
Title: A vehicle for climbing stairs
Inventor: FLEMING JOHN FAY
IPC: B62B5/02
Filed: 1969-05-29
Abstract: 1,213,930. Stair climbing vehicle; vehicle wheels; motor vehicles. J. F. FLEMING. 29 May, 1969, No. 27270/69. Headings B7C, B7D and B7H. A stair climbing vehicle comprises side members 12 mounting a driven axle 26, there being rotatably mounted on each end of the axle a spider 34 with a wheel 36 on each arm 35 thereof, and the wheels of each spider are rotationally connected by a chain 44 with one wheel driven by a chain 52 from the axle 26, the arrangement providing rotation of a spider when one wheel thereof is restrained against rotation. The driving force is provided by an electric motor 58 through a clutch 59, chain 62 and differential 56. On level ground the wheels 36 are each driven about their axles 40 to propel the vehicle but to negotiate a step when the forward ground wheel contacts the riser thereof, the driving force will cause the complete spiders to rotate about the axle 26. A hand brake 28 is provided.
Patent GB-771378-A (GB)
Title: Improvements in the preparation of quick-cooking cereal products
IPC: A23L7/196
Filed: 1954-09-22
Abstract: In preparing a quick-cooking cereal, e.g. rice or barley, the cereal is substantially gelatinized and rinsed with water.  The resulting substantially discrete grains are compressed, e.g. between rolls, and dried, e.g. in a current of air at 79 DEG C. until they have a moisture content between 3 and 14 per cent.  The cereal, preferably washed, may be soaked in water at a temperature below the gelatinization point, e.g. room temperature, until it has absorbed all or nearly all the water required for uniform gelatinization, which may then be brought about by heating the soaked cereal, e.g. in steam at super-atmospheric pressure.  The gelatinized grains may be allowed to take up more water during rinsing or they may be soaked in water between rinsing and compressing.  The grains may be compressed within 90 minutes of rinsing and may be washed between compressing and drying.  The cereal may be treated with an antioxidant, preferably citric acid, which may be added to the soaking or wash water.ALSO:Quick-cooking rice or barley, e.g. treated with citric acid (see Group I) is used in dry soup mixtures and puddings.
Patent GB-1422504-A (GB)
Title: Inert gas installation and method for oil tankers
IPC: B63J2/08
Filed: 1974-06-20
Abstract: 1422504 Fire prevention in oil tankers TANK SAPP (UK) Ltd 20 June 1974 [21 June 1973] 27434/74 Heading A5A [Also in Division B7] Oil tanker has engine exhaust gas supplied to the cargo tanks to maintain an inert atmosphere. The gas is scrubbed with sea water to remove sulphur dioxide, and the scrubbing water is then treated to remove the sulphur dioxide before being discharged overboard: The sulphur dioxide is discharged to the atmosphere through the ship's funnel. The plant is preferably operated automatically to maintain a pressure in the tanks slightly above atmospheric.  In the scrubber 9 sea water falls over a series of trays in a rising current of exhaust gas and in the stripping apparatus 17 the contaminated sea water falls over a series of trays in a rising current of air. The air and sea water may be heated to promote the removal of sulphur dioxide from the sea water. The Specification gives preferred ranges of temperatures of the water, air and gas at various stages.
Patent GB-796066-A (GB)
Title: Improvements in vacuum pumps of the water jet type
Inventor: BOULSOVER GEOFFREY
IPC: F04F5/04
Filed: 1955-09-27
Abstract: 796,066. Injectors. AMALGAMATED DENTAL CO., Ltd. Aug. 2, 1956 [Sept. 27, 1955], No. 27455/55. Class 71. The jet issuing from the nozzle 3 of a water jet vacuum pump is broken by means having a water inlet 4 and an air inlet 10 of a tapered member 6 located in a divergent outer end portion of the combining tube 5. Specification 430,246 is referred to.
Patent GB-603402-A (GB)
Title: Improvements in and relating to the production of light density polymeric materials
IPC: C08J9/12
Filed: 1945-10-19
Abstract: Closed cell expanded polyvinyl acetal is made by masticating the resin with a solvent to form a dough, incorporating therein a strong acid or acid-reacting salt thereof, subjecting the dough to a gas under pressure at a temperature of about 100 DEG  C., allowing the material to expand in known manner and finally removing residual solvent by a heat treatment, e.g. at 60-80 DEG  C.  The acetal may be a formal, acetal, propional or butyral.  The specified solvent is a mixture of benzene and ethyl alcohol. Suitable acidic materials are sulphuric, hydrochloric and orthophosphoric acids, alkali or alkaline earth metal or ammonium persulphates and p-toluene-sulphonic acid. The dough may be sheeted before gassing by moulding or by slicing a block.  After cooling, the gas pressure is reduced, the sheets removed from the autoclave and heated to cause them to expand.  The sheets may be heated under pressure before gassing.  In an example, gassing is effected with nitrogen at a pressure of 3000 lbs. per square inch.
Patent GB-1306176-A (GB)
IPC: G03C5/305
Filed: 1971-06-11
Abstract: 1306176 Photographic Developer MINNESOTA MINING & MFG CO 11 June 1971 [12 June 1970] 27600/71 Heading G2C A photographic developer for silver halide material comprises an oxidisable developing agent and an oxidation inhibitor of the general formula R<SP>1</SP> -CO-[CH 2 ] n -CHOH-R<SP>2</SP> in which R<SP>1</SP> is an alkyl group or the group - CH 2  OH, R<SP>2</SP> is a hydrogen or an aliphatic group, or R<SP>1</SP> and R<SP>2</SP> together represent the atoms necessary to complete a cycloaliphatic ring, and n is O or 1. Specified inhibitors are hydroxyacetone, dihydroxyacetone and its dimer, 3-hydroxy -2- butanone, 4-hydroxy-2- butanone and 2-hydroxy-cyclohexanone. The developing agent may be hydroquinone, 1-phenyl-3-pyrazolidone, pyrogallal, an aminophenal or a di-aminophenal or a derivative thereof or a mixture of two or more of these. A colour developing agent such as para-phenylene-diamine or a derivative thereof may be used. Examples of suitable developer compositions are given.
Patent GB-702059-A (GB)
Title: Chemically resistant glass
Inventor: COLE HORACE
IPC: C03C3/091
Filed: 1950-11-13
Abstract: 702,059. Glass composition. PILKINGTON BROS., Ltd. Oct. 16, 1951 [Nov. 13, 1950], No. 27640/50. Class 56 A chemically resistant glass containing 2-20 per cent. by weight of MnO 2  includes Cr 2 O 3  to maintain the MnO 2  in the higher oxide form. Up to 2 per cent. of Cr 2 O 3  may be included. The approximate weight percentage composition of two examples is (1) SiO 2  65.0, CaO 0.65, MgO 0.35, ZnO 1.0, Al 2 O 3  3.0, B 2 O 3  6.0, Na 2 O 13.0, MnO 2  10.0, Cr 2 O 3  1.0, and (2) SiO 2  55.0, CaO 3.0, MgO 2.0, Al 2 O 3  2.0, B 2 O 3  6.0, Na 2 O 12.0, MnO 2  18.0, Cr 2 O 3  2.0. The glasses are suitable for use in chemical plant ware, glass coated metals, and the production of glass fibres.
Patent GB-753814-A (GB)
Title: Improvements in the manufacture of threads or bands from rubber hydrochloride
IPC: B29D99/00
Filed: 1954-09-27
Abstract: A thread or band of rubber hydrochloride is prepared by dispersing finely divided rubber hydrochloride in an organic liquid having a boiling point below 185 DEG C. in an amount of 100 parts by volume of rubber hydrochloride per 40 to 200 parts by volume of organic liquid, extruding the dispersion through an opening to form a thread or band which is gelatinized by heating, evaporating the organic liquid, and before and/or after evaporation stretching the product at least 100 per cent.  The organic liquid may comprise decane, petrol, benzene, toluene, xylene, dichlorethane, chlorbenzene, amyl alcohol dioxane, tetrahydrofurane, ethyl acetate, n - amyl acetate, methyl hexyl betone, cyclohexanone, or mesityl oxide.  In an example 20 grams of rubber hydrochloride powder is dispersed in 15 grams of tetrahydrofurane (boiling point 65 DEG C.) and the dispersion extruded through a circular opening of 1 mm. diameter and heated to 105 DEG C. for 5 seconds.  The thread obtained is stretched 500 per cent and the tetrahydrofurane evaporated at 40 DEG C. Specifications 633,463, 674,806, 685,026 and 726,142 are referred to.