baber/WOPTO huggingface dataset:
Patent GB-1344839-A (GB)
Title: Sulphoniobutadiene salts and their production
IPC: C07C381/12
Filed: 1971-06-18
Abstract: 1344839 Sulphoniobutadiene salts; mercaptobutadienes BADISCHE ANILIN- & SODAFABRIK AG 18 June 1971 [20 June 1970 24 April 1971] 28685/71 Heading C2C Novel compounds of formula where R<SP>1</SP>, R<SP>2</SP> are H or C 1-5  alkyl and the R<SP>3</SP> radicals are independently aliphatic radicals or together form an alkylene group and X<SP>(-)</SP> is an anion, are prepared by treating a compound with a base. Mercaptobutadienes R<SP>3</SP>SCH=CR<SP>1</SP>CR<SP>2</SP> =CH 2  are prepared by pyrolysing the above novel compounds at subatmospheric pressure.
Patent GB-729496-A (GB)
Title: An improvement in or relating to disc coulters for ploughs
Inventor: WILLIAMS FREDERICK
IPC: A01B15/18
Filed: 1952-11-14
Abstract: 729,496. Agricultural implements. BROWN TRACTORS (ENGINEERING), Ltd., D. Nov. 16, 1953 [Nov. 14, 1952], No. 28711/52. Class 6 (1). A disc coulter assembly comprises a disc d rotatably mounted between two plates e<SP>1</SP>, e<SP>2</SP> carried by a bush f having partly spherical depressions f<SP>1</SP>, f<SP>2</SP> in which rest a collar g and an eccentric boss i respectively. The collar g abuts against a shoulder h<SP>1</SP> on the stem h and the boss i is rotatable on the stem and may be locked in any desired position by means of a set screw j. The disc i is held in position on the stem h by means of a washer k and screw m. A scraper blade is provided for the disc.
Patent GB-1360385-A (GB)
Title: Apparatus and process for producing particles of material of a  required size range
IPC: B01J8/24
Filed: 1971-07-15
Abstract: 1360385 Evaporators for producing solid particles STRUTHERS SCIENTIFIC & INTERNATIONAL CORP 15 July 1971 [13 June 1970] 28720/70 Heading B1B Material is produced in the form of particles of a required size range by providing a bed of particles 8, smaller than the required size, above an inclined perforated grid 6, blowing hot gases, e.g. air upwardly through the grid to fluidize the particles, and coating the particles with a solution of the material by means of nozzle 9. The hot gases evaporate the solvent from the coated particles and they grow in size, the pressure of the hot gases being adjusted so that the large particles of the desired size range fall from the bed onto grid 6 and roll down to exit tube 10. Solvent-laden gases leave the apparatus through duct 11. Grid 6 is preferably made of a heat-insulating material.
Patent GB-1060650-A (GB)
Title: Self-stable inflatable traffic-marker
IPC: E01F9/012
Filed: 1964-07-13
Abstract: 1,060,650. Road traffic markers. L. U. SANTI. July 13, 1964 [July 19, 1963], No. 28835/64. Heading E1G. A road traffic marker comprises a pliable envelope 1 which is inflatable and weighted to assume an upright position on a road surface. The envelope is of translucent synthetic resin and may have reflector bands. A lower compartment 10 is formed between a double base 8, 11 and has a sleeve through which an electric torch may be inserted for internal illumination; the sleeve being tied for sealing. The marker may have a lug for attachment to a fixed point.
Patent GB-686872-A (GB)
Title: Improvements in and relating to laminated magnetic cores for electromagnetic induction apparatus
IPC: H01F27/245
Filed: 1950-11-27
Abstract: 686,872. Transformers and inductances; electromagnets. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 27, 1950 [Dec. 3, 1949], No. 28969/50. Classes 35 and 38 (ii). A laminated magnetic core 1 comprises a plurality of leg members 2, 3, 4, each leg member being connected at its ends to its respective adjoining leg members by yoke members 5, 6, 7, 8, each of the leg and yoke members comprising separate stacks of rectangular laminations of magnetic material, the whole being held in assembled relation by welds 12-19 applied at the joints between the leg and yoke members. The leg and yoke members are formed with butt joints only, but, in another embodiment, butt and lap joints are shown in which case two welds per joint are used. To secure the outer laminations, spot welds 20 are used. Specification 686,873 is referred to.
Patent GB-638531-A (GB)
Title: Improvements relating to compositions suitable for film-casting and like applications
IPC: C09D101/10
Filed: 1947-10-30
Abstract: A solution capable of forming a film on evaporation of volatile solvent consists of cellulose propionate containing not more than 0.3 hydroxyl groups per glucoside unit of the cellulose, an aromatic hydrocarbon and an aliphatic ketone.  The hydrocarbon may be benzene or toluene and the ketone may be acetone or methyl ethyl ketone.  The casting solution may contain from 15-35 per cent by weight of the cellulose propionate, which may have a viscosity of from 20-250 centipoises, measured under defined conditions.  Where the cellulose propionate has 0.0-0.1 free hydroxyl groups the solvent mixture may comprise 10-40 per cent by weight of acetone and 90-60 per cent of benzene, or 50-65 per cent by weight of methyl ethyl ketone and 50-35 per cent of toluene; where the cellulose propionate contains about 0.3 free hydroxyl groups, the solvent mixture may contain up to 50 per cent by weight of acetone.  Up to about 30 parts of a plasticizer such as dioctyl phthalate, triphenyl phosphate and hydrogenated terphenyls, and from 0.01 to 3 per cent of a stabilizing agent such as phenyl salicylate, calcium lactate, benzalacetophenone, fluoranthene, alpha-butylene sulphone, quinine bisulphate and di-butyl "Carbitol" sulphite may be added to the solution, and also stearic acid, aluminium hydroxide, the dioctyl ester of the sodium salt of sulphosuccinic acid, dyes and pigments.  In one example, cellulose propionate having 0.04 free hydroxyl groups and a viscosity of 100 centipoises at 25 DEG  C. is dissolved in a mixture comprising 75 per cent of benzene and 25 per cent of acetone and tricresyl phosphate is added as plasticizer.  The solution is cast on to a rotating film wheel, the temperature of the solution being 120 DEG F. and that of the film wheel about 90 DEG  F. The volatilized solvents are recovered and the film stripped from the wheel and seasoned for 2-2.5 hours at 160 DEG  F.  The cellulose propionate solution may also be used for coating wire cloth or open-mesh fabric. The films may be used for wrapping purposes, for preserving documents by lamination, or for making sound discs.
Patent GB-1390967-A (GB)
Title: Semiconductor device for producing or amplifying high-frequency electromagnetic oscillations
IPC: H01L47/02
Filed: 1972-06-21
Abstract: 1390967 Semiconductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 June 1972 [24 June 1971] 29035/72 Heading H1K A Gunn diode comprises a layer of semiconductor material 2; having a "two valley" band structure, on an insulating substrate 1, electtrodes 3, 4, and a metal layer 5 making ohmic contact with one of the electrodes and non- ohmic contact to the semiconductor layer adjacent the electrode. The electrodes may be of metal or of heavily doped semiconductor material or zones. The metal layer 5 may be of aluminium, the semiconductor material of GaAs, or InP epitaxially deposited on a substrate of GaAs, Al2O3 or glass. In one embodiment metal layers are present at the anode and cathode, making Schottky contact to the layer 2, the cathode metal layer being of triangular shape, the anode metal layer being crescent shaped. The electrodes and metal layers may be formed on the layer 2 as shown, or may be between the substrate 1 and layer 2.
Patent GB-1247589-A (GB)
Title: Sulphhydryl copolymers
Inventor: CHARLE ROGER
IPC: C08F8/34
Filed: 1969-06-09
Abstract: 1,247,589. Treating keratinic fibres. L'OREAL. 9 June, 1969 [10 June, 1968], No. 29158/ 69. Heading D1B. [Also in Divisions A5, A6, C3, C4 and C5] Keratinic fibres, e.g. wool, are treated with polymers containing a -CO-NRM group where R is hydrogen, lower (C 1-6 ) alkyl or lower hydroxyalkyl and M is a group containing a thiol residue. The fibres may then be dyed. Exemplified polymers are the reaction product of #-mercaptoethylamine and N,N-diethylpropylene diamine with a maleic anhydride-itaconic anhydride copolymer and the reaction product of #-mercaptoethylamine with a methyl acrylate-acrylic anhydride copolymer.
Patent GB-707479-A (GB)
Title: Improvements in hollow cavity wall building structures
IPC: E04B2/44
Filed: 1951-12-13
Abstract: 707,479. Walls etc.; building blocks. CHAPMAN, C. Feb. 6, 1953 [Dec. 13, 1951], No. 29203/51. Classes 20 (4) and 87 (1) In cavity walls of the type in which hollow blocks, after assembly, are filled with concrete or the like, the inner blocks A are formed at one end with a groove a<SP>3</SP> to engage a tongue a<SP>2</SP> on the next block, and the outer blocks B are formed at the ends with inter-engaging rebates b<SP>2</SP>, the blocks A, B being tied by ties C which engages slots a<SP>1</SP>, b' in the upper faces of the blocks. The blocks B are provided with inter-engaging tongues b<SP>4</SP> and rebates b<SP>3</SP>. The end blocks A4, B4 are, as shown in Fig. 4, made bull nozed to close the cavity, and corner blocks are formed L- shaped and of different dimensions to suit the bonding requirements of the courses. The lintel blocks are closed at the bottom and some have projecting ribs to close the cavity in the wall.
Patent GB-780660-A (GB)
Title: Improvements in or relating to garment pressing machines
Inventor: POWELL DENIS WILLIAM
IPC: D06F71/36
Filed: 1954-10-11
Abstract: 780,660. Ironing presses. LESSING, R. Oct. 11, 1955 [Oct. 11, 1954; June 16, 1955], Nos. 29242/54 and 17346/55. Class 138 (2). A self-adjusting pressure plate for the buck 3 of a garment press consists of a grid plate 1 (i.e. a perforated plate over which a garment is laid) having a number of conical springs 2 arranged in rows disposed longitudinally on its underside, the springs being secured to the grid plate at their apices by bolting or other suitable means. The plate 1 is preferably made of fine mesh metal to permit the passage of steam therethrough. The edges of the plate 1 are bound with metal binding material (not shown) which also serves to secure a wall of flexible, non - porous, heat - insulating material, e.g. asbestos. The lower edge of the insulating material is provided with a hem through which is threaded a cord or wire, the ends being used to secure the device to the buck. The plate 1 is preferably covered by a layer of knitted cotton wool secured in position by duck covering material. Fig. 3 (not shown) illustrates a modification having upper and lower plates separated by the conical springs.
Patent GB-854275-A (GB)
Title: Process for the recovery of catalyst in oxidation reactions with nitric acid
IPC: C22B34/34
Filed: 1959-08-26
Abstract: The catalyst used in oxidation reactions with nitric acid is recovered, after separation of the desired oxidation product, by distilling the mother liquor under reduced pressure to remove nitric acid, diluting the residue with water to pH 1.5-6.0 and passing over an acid ion exchanger (e.g. sulphonated polystyrene), thereafter taking up the catalyst from the ion exchanger with nitric acid.  In the examples, Cu + V is so recovered; Cr, Mo, W and Ni are also mentioned.  Specifications 572,260, 633,354 and 756,679 are referred to.
Patent GB-1386258-A (GB)
Title: Mixer for mixing a gas and a liquid
IPC: B01F33/40
Filed: 1972-06-22
Abstract: 1386258 Agitating, aerating and circulating liquids NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY TRADE & COMMERCE 22 June 1972 [22 June 1971] 29324/72 Heading B1C Apparatus for mixing, circulating and aerating a liquid has a rotor 5 with vanes 12 (see also Fig. 2, not shown) within a stator comprising lower and upper discs 7, 9, air and liquid being supplied to the eye of the rotor respectively through a downcomer tube 10 coaxial with the rotor shaft 4, and an intake 8. The discs 7, 9 have a small clearance with the rotor and the distance between them may increase outwardly from the centre.
Patent GB-1111334-A (GB)
Title: Method for the hot-topping of ingot moulds
Inventor: EMMOTT JOSEPH GORDON
IPC: B22D7/10
Filed: 1964-07-17
Abstract: 1,111,334. Clamps. FOSECO TRADING A.G. 7 July, 1965 [17 July, 1964], No. 29361/ 64. Heading E2B. [Also in Division B3] A heat-insulating &c. slab 16 is held inside the mouth of an ingot mould 15 for hot topping (see Division B3) by a U-shaped spring clip, one limb bearing a movable device such as a cam 12 or a bell crank lever (18) or (23), Figs. 7, 8 (not shown). The cam or lever device is releasable for re-use with another clip (the first being destroyed by the casting) and is placed against the outer surface of the mould 15 (while on the mild steel U-clip) so that when swung through approximately a right angle, the bearing limb is forced away from the mould to increase the clip pressure.
Patent GB-1089008-A (GB)
Title: Device for measuring the tackiness of printing inks
IPC: G01N33/32
Filed: 1965-07-12
Abstract: 1,089,008. Inking apparatus; testing ink. ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER A.G. July 12, 1965 [July 15, 1964], No. 29388/65. Heading B6C. The tackiness of the ink used in an offsetlitho machine is measured through the application of a device which has two non-elastic measuring rollers 2, 3 in engagement with a non-elastic ink distributer roller 1 of the inking train. Both measuring rollers are mounted on a bar 5 fixed to the machine, the roller 2 being arranged such that it may move radially to the roller 1 whilst the roller 3 is arranged to move both radially and tangentially. Such radial movement is caused by the thickness of the ink layer on the roller 1 whilst any tangential movement of the roller 3 is effected by the " tackiness " of the ink itself. Through electrical means both the vertical movement of the roller 2 and the tangential movement of the roller 3 are converted into numerical values which can be compared with a " norm " such that adjustments may be made, if necessary, to the consistency of the ink. In a modified device the two measuring rollers are placed one behind the other around the periphery of the roller 1.
Patent GB-150927-A (GB)
Title: Improvements in pianos
IPC: G10C3/04
Filed: 1919-11-25
Abstract: 150,927. Mehlin, C. Nov. 25, 1919. Pianoforte soundboards.-Tonal quality is improved by cutting the soundboard a at one end so that the vibrations are transmitted freely to the air, and the damping effect of the frame b is lessened. The bridges c, d. are parallel to the grain of the soundboard, and the cut e is made so as to be free of the glued rim, and is at some little distance within the perimeter at rightangles to the grain. It is as long as possible without unduly weakening the board. The opening f is shaped to correspond with the frame. Fig. 2 shows the opening in the soundboard of an upright pianoforte.
Patent GB-639193-A (GB)
Title: Improvements in multiple-way gas-cocks
IPC: F16K35/02
Filed: 1946-10-03
Abstract: 639,193. Locking valves. MARTIRI, R. Oct. 3, 1946, No. 29460. [Class 135] A multiple-way gas-cock for controlling main and pilot burners 2, 1 respectively of a gas water-heater comprises a conical plug valve member 4 having a cylindrical extension 13 in which is slidably mounted an actuating shaft 15 carrying a radial pin 16 which engages a longitudinal slot 14 in the extension. A spring 17 urges the shaft 15 away from the plug. Gas to the pilot burner passes via an inlet (not shown) in the side of the casing, a circumferential groove 8 extending substantially halfway round the plug, and a port 9 connected to a pipe 11, whilst the main burner is fed through a port (not shown) in the side of the casing, a port 7, Fig. 4, in the wall of a hollow portion 3 of the plug and thence through the open end of the plug and the conical bore 6 of the casing. The casing also incorporates a valve (not shown) for controlling the gas flow in accordance with the flow of water from the heater. The pin 16 which extends radially beyond the extension 13, also engages a slot formed in a collar 19 secured by screws to an end cover 18, the slot comprising circumferential portions 20b, 20d and longitudinal portions 20a, 20c. One wall of the slot portion 20d is constituted by a washer 21 against which bears a spring 22 for pressing the plug into the conical bore 6. When the pin 16 is in the part 20a of the slot, the gas supply to both the main and pilot burners is cut off, it being necessary to depress the shaft 15 against the spring 17 before the shaft can be rotated to open the pilot jet supply, and a further depression of the shaft is then required to open the supply to the main burner.
Patent GB-1211667-A (GB)
Title: Article display apparatus
Inventor: MAKEPEACE WILSON
IPC: A47F7/02
Filed: 1969-06-11
Abstract: 1,211,667. Article display stands. W. MAKEPEACE. 11 June, 1969 [5 May, 1969], No. 29523/69. Heading A4T. [Also in Division B8] Article display apparatus comprises transparent sheets 12 with edge walls 16.1 secured by bolts 18-18.3 to form a container or a transparent box and lid, and modular, equal height spacer members A-P of whole, ¥, ¢ or “ width “ fitting snugly between the sheets, some 24-24.3 having appropriate sized openings 22-22.3 for articles, e.g. coins. The thickness of the coins is accommodated by transparent packing 26 within the opening or 28 of the same width as the spacer member 24.3 and above or below the coin. Projections 20-20.3 protect the faces from being scratched.
Patent GB-507532-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B6/20
Filed: 1937-12-16
Abstract: 507,532. Electrically - actuated valves. GALLUSSER, H. Dec. 16, 1937, No. 29631/38. Divided out of 507,581, [Group II], and addition to 507,531. [Class 135] [Also in Groups XI and XII] A rotary electric furnace is provided with a hydrogen supply connected 'to distributing valves 10 interconnected by a coiled pipe coil from which a pipe leads to a condenser 19. Each valve comprises a perforated shell enclosing two closure members 14, such that when one is open the other is closed. The valves are operated against springs by electromagnets connected to slip rings against the action of springs so that hydrogen is supplied to the charge when the valves are immersed therein and water vapour is removed when the valves are uncovered. Specification 507,581 relates to a method of reducing oxides using the furnace described.
Patent GB-870484-A (GB)
Title: An improved back rest or the like for attachment to a bedstead
Inventor: SMITH ALBERT EDWARD
IPC: A61G7/00
Filed: 1957-09-21
Abstract: 870,484. Bed rests &c. PHILLIPS Ltd., ALBERT. Sept. 15, 1958 [Sept. 21, 1957], No. 29755/57. Class 52(2). A bed rest has a tubular frame with side members 4 slidable on arms 3 pivotally mounted on the bed head and the upper cross member 5 carries locking rods 7, restricted to axial movement by projecting stop screws 8 through slots in member 5, the tapped bores 7a, 7b of the rods being engaged by left and right hand threads respectively of the ends 9a, 9b of a spindle 9 which can be rotated by a handle 6 to move the rods 7 into engagement with the periphery of arms 3 to secure the rest in the desired position.
Patent GB-858046-A (GB)
Title: Bulk cargo carrier ship
Inventor: CLARK JOHN GORDON
IPC: B63B25/04
Filed: 1959-09-01
Abstract: 858,046. Carrying bulk cargo. COMMONWEALTH OF AUSTRALIA. Sept. 1, 1959, No. 29772/59. Class 113. A bulk cargo carrier comprises at least one main hold b, an open-bottom trimming hold 26 which extends across the main hold, and a shedder mound 27 which stands on the floor 17 of said main hold, the top portion 28 intruding into the trimming hold. Each trimming hold has a hatch through which the cargo is loaded as indicated by the arrows 30 in Fig. 7, the material flowing freely (arrows 31) into the main hold until the surfaces (32 in Fig. 8) assume the angle of repose for the material. The trimming hold may then be filled, Fig. 10, and the remainder of the cargo poured into the main hold (arrows 33 in Fig. 11). When the cargo is to be unloaded it is removed from the main holds as indicated by arrows 34 in Fig. 12. When main holds are nearly empty, cargo in the trimming holds runs into main holds, as indicated by arrows 35 in Fig. 12, for removal therefrom.
Patent GB-537142-A (GB)
Title: Improvements in electrical impulse generators
IPC: H04N5/073
Filed: 1939-11-10
Abstract: 537,142. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., BARNARD, R. M., and KRAM, W. Nov. 10, 1939, No. 29807. [Class 40 (v)] Relates to circuit arrangements for generating impulses having a rectangular wave form under control of oscillations of saw-tooth wave form. The rectangular impulse is initiated by one valve when the saw-tooth voltage reaches a particular value and is terminated by a second valve when the saw-tooth voltage reaches a second value. Negative saw-tooth potentials are applied via terminals N1, N2 to the differently-biased grids of valves V1, V5. The valves V2, V3 are readilysaturable pentodes having an anode voltage of 20 and 40 volts respectively and a screen voltage of 60. A resistance R3 is in the cathode circuit of both valves V3, V5. During the initial portion of a saw-tooth pulse, the effect of V5 is substantially nil as it is saturated, but a short time after the beginning of the pulse the voltage applied by V1 to the grid of V2 causes the current through V2 to rise suddenly to saturation value. This reduces the current in V3 to zero and increases that in V4 to a maximum, thereby initiating the pulse at output terminals T1, T2. At some later period during the saw-tooth pulse, the voltage on the grid of V5 becomes sufficiently negative for the current in V5 to fall to zero. This decreases the voltage across R3, making the cathode of V3 less positive relatively to its grid, so that the current in V3 rises to its saturation value and reduces the current in V4 to a minimum, thus terminating the pulse.
Patent GB-537144-A (GB)
Title: Improvements in or relating to guide-ways or passages for machine-gun ammunition belts
IPC: F41A9/54
Filed: 1939-11-10
Abstract: 537,144. Cartridge belt guides. DUNLOP RUBBER CO., Ltd., and BRENTNALL, G. C. Nov. 10, 1939, No. 29820. [Class 92 (ii)] Relates to guides for machine gun cartridge belts of the kind comprising metal channel-section members 1 joined at intervals by metal strips 4. According to the invention, slitted rubber bead members 5, 6 are attached to the edges of the members 1 to form contact surfaces for the cartridges. Graphite for lubricating may be applied to the beads or incorporated in the rubber composition from which they are made. Specification 527,076 is referred to.
Patent GB-791256-A (GB)
Title: A method of manufacturing slabs, blocks or similar products of wooden particles or other fibrous material
IPC: B27N3/08
Filed: 1955-10-20
Abstract: Slabs are made by pressing, by means of a press, disintegrated fibrous material, e.g., wood meal and wool and cutter shavings, having less than 10 per cent of moisture, mixed with from 3 to 8 per cent dry weight of a resin glue in a two-part mould, locking the mould parts in the pressed position, removing the mould from the press, and curing the resin glue.  The material may be given a hot or cold prepressing prior to the main pressing.  The resin glue may be liquid of solid and may be a mixture of, e.g., carbamide resin, formaldehyde, and a catalyst.  Larger quantities of resin may be used for the surface layers.  The slabs may be reinforced with wooden laths.  Coarse and fine particles may be arranged in layers with or without intermediate paper layers.  The slabs are sawn up into boards.  Specification 648,908 is referred to.
Patent GB-519359-A (GB)
Title: Means for supplying fresh air to incubators
IPC: A01K41/00
Filed: 1938-10-17
Abstract: 519,359. Ventilating incubators. BARRETT, E. Oct. 17, 1938, No. 29992. [Class 137] Fresh air is supplied through a duct 1 of large sectional area passing through an outer wall 2 to an incubator 3 from which exhaust ports 7 lead to an enclosure, a heater, humidifier, or a fan being severally or individually arranged within the duct so as to be removable at will. Fig. 9 for example shows a fan 8 and humidifier 10 positioned in the duct 1. Specification 465,351 is referred to.