baber/WOPTO huggingface dataset:
Patent GB-365045-A (GB)
Title: Improvements in the treatment of hydrocarbons in the electric arc
IPC: C10G15/00
Filed: 1930-10-07
Abstract: In the electric-arc treatment of carbonaceous materials in the gas or vapour phase or in the form of mist or dust, use is made of an arc generated by alternating current of not more than 500 cycles under such conditions that the decrease from the no-load tension to the working tension is more than 30 per cent; the current may be rectified, if desired.  The required decrease from the no-load to the working tension may be obtained by appropriate construction of the generator, or by interruptions in the iron core of the transformer, or by the use of abnormally large choke coils.  The plant may also include phase-displacers.  The carbonaceous materials that may be treated include coals, tars, oils and other hydrocarbons, and resinous and asphaltic substances.  The treatment may be effected in the presence of nitrogen, the products then including hydrocyanic acid. Specification 339,329, [Class 38 (iv), Electric supply and transmission systems &c.], is referred to.ALSO:In the electric-arc treatment of carbonaceous materials in the gas or vapour phase or in the form of mist or dust, use is made of an arc generated by alternating current of not more than 500 cycles under such conditions that the decrease from the no-load tension to the working tension is more than 30 per cent; the current may be rectified, if desired.  The required decrease from the no-load to the working tension may be obtained by appropriate construction of the generator, or by interruptions in the iron core of the transformer, or by the use of abnormally large choke coils.  The plant may also include phase-displacers.  The carbonaceous materials that may be treated include coals, tars, oils and other hydrocarbons, and resinous and asphaltic substances.  The treatment may be effected in the presence of hydrogen, nitrogen, or small amounts of oxides of carbon, steam, or hydrogen sulphide.  The products include acetylene and (if nitrogen is present) hydrocyanic acid.  An example is given of the treatment of a mixture containing hydrogen and lower paraffin hydrocarbons in an arc furnace having a central electrode and a tubular counter-electrode to which rectified alternating current of 50 cycles is supplied through a transformer and a choke coil, the arrangement being such that the decrease from the no-load to the working tension is 45 per cent.  Specification 339,329, [Class 38 (iv), Electric supply and transmission systems &c.], is referred to.
Patent GB-427645-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/40
Filed: 1933-10-30
Abstract: 427,645. Safety razors. TAYLOR, G., Hollinghurst, Kingsway, Penwortham, Preston. Oct. 30, 1933, No. 30050. [Class 30] In razors having a rigid cap 10 the guard 5, Fig. 1, is either made (as shown) of flexible material such as rubber or supports a pad 20, Fig. 7, of such material adjacent to the edge of the blade. In Fig. 9 a rigid guard member 30 is shown covered with indiarubber 32.
Patent GB-795390-A (GB)
Title: Fuel composition
Inventor: GREENWOOD JOHN
IPC: C10L1/24
Filed: 1955-10-21
Abstract: A fuel composition for a two-stroke engine comprises a gasoline, 2 to 10 per cent by weight based on the gasoline of a mineral lubricating oil, and an oil-soluble barium compound in an amount sufficient to provide at least 0.01 per cent by weight of the composition of barium calculated as the metal.  The barium compound may be a barium salt of an alkyl phenol having one or two C3 to C24 alkyl groups, preferably branched chain groups, such as tertiary octyl phenol, or a barium salt of a sulphurized phenol, a naphthenic acid, a sulphonic acid, or a carboxylic acid having 10 or more carbon atoms.  The barium compound and the lubricating oil may be added to a gasoline, or the barium compound and the lubricating oil may be mixed with a mineral oil diluent boiling between 200 DEG  and 600 DEG  F., such as a kerosene or white spirit, to provide an additive containing 1 to 25 per cent by weight of the barium compound for mixing with a gasoline. The fuel composition preferably contains between 0.01 and 1 per cent by weight of barium and 0.1 to 5 per cent by weight of the mineral oil diluent boiling between 200 DEG  and 600 DEG  F.  The lubricating oil preferably is a naphthenic oil having a viscosity between 35 and 125 s.s.u. at 210 DEG  F. and a viscosity index below 85, preferably below 70.  The compositions may also contain a copolymer of a C11 to C24 unsaturated mono-carboxylic acid, such as oleic acid, with C2 to C6 alkylene oxide, such as ethylene oxide.  In examples, fuels contain gasoline, lubricating oil, the barium salts of sulphurized tertiary octyl phenol and sulphonated wax, and tetraethyl lead. Specifications 599,729, 600,825, 696,498, 697,461, 720,372, 731,129, 732,781, [Group IV (b)], 744,942 and 767,115 are referred to.
Patent GB-999503-A (GB)
Title: Improvements in or relating to circular knitting machines
Inventor: KENT ALFRED WOODWARD
IPC: D04B15/61
Filed: 1960-09-01
Abstract: 999,503. Knitting machines. BENTLEY ENGINEERING CO. Ltd. Aug.24, 1961 [Sept.1, 1960], No. 30178/60. Heading D 1C. In a circular knitting of the rotary needle cylinder type a yarn-end retaining device comprising a receptable 14, Fig. 2, with pairs of opposed brushes 14a, 14b is provided in addition to the usual yarn cutting and clamping devices on the welt cam plate 1 at both the main and secondary multiple yarn feed stations 3 and 4. The yarns are held between a clamp 12 and plate 1 when not in use and cut ends of yarn are received on a fork 16 Fig. 10, which rises and feeds them to the brushes 14a,14b. The yarns are cut by a revolving disc 10 which is spring pressed into contact with a fixed cutter block 11, Fig. 9, when required. In operation, Fig. 14, when one feeder 6 is feeding yarn 13 to needles 7 the remaining yarns are held by clamp 12. If feeder 5 drops into action its yarn 9 is also taken by needles 7 while still held by clamp 12. Feeder 6 is lifted out of action and yarn 13 passes over cam plate 1 towards clamp 12 while yarn 9 is carried round and doubled lying beneath brushes 14a, 14b on fork 16. Yarn 9 now reaches cutter 10, which is moved into contact with cutter 11, and is severed leaving only a short end on the garment. Meanwhile clamp 12 is opened to release the cut end of yarn 9 and receives the yarn 13 which is also severed by cutter 10. Fork 16 then rises carrying the cut ends of yarns 9 and 13 into brushes 14a, 14b by which they are retained. Fork 16 then drops and clamp 12 closes again onto the yarn 13 and other yarns not in use and the disc 10 is moved away from contact with cutter 11. The loose ends are removed when convenient from the receptacle 14 by the operator. Clamp 12, fork 16 and disc 10 are mechanically actuated from the main control drum of the machine at the required moments.
Patent GB-1107557-A (GB)
Title: Thiophosphoramide derivatives having pesticidal activity and process for preparing same
IPC: C07F9/24
Filed: 1965-07-15
Abstract: Novel thiophosphoramides of the formula <FORM:1107557/C2/1> wherein R1, R2, R5 and R6 are alkyl groups, R3 is a hydrogen atom or an alkyl group, and R4 is an alkylene group, are prepared by reacting an alkali-metal salt of an O-alkyl-amido-thiolphosphoric acid having the formula R1O-P(O)(NR2R3)(S-X), where X is an alkali-metal atom, with an N-alkoxy-N-alkyl-haloalkylamide of the formula Y-R4-C(O)N(OR5)(R6) wherein Y is halogen.  The alkali metal salt used may be obtained by reacting a dialkyl halothionophosphate of the formula (R1O)2P(S)Y with an amine R2R3NH or its hydrochloride to give an O,O-dialkylamidothionophosphoric acid of the formula (R1O)2P(S)(NR2R3) and hydrolysing this under alkaline conditions to give the alkali metal salt of the corresponding O-alkyl-amido-thionophosphoric acid which is capable of reacting by rearrangement to give the above thiolphosphoric acid salt.  The compounds have insecticidal, miticidal and nematocidal properties (see Division A5).ALSO:A pesticidal composition comprises an inert carrier and, as active ingredient, a compound having the formula:- <FORM:1107557/A5-A6/1> wherein R1, R2, R5 and R6 are alkyl groups R3 is a hydrogen atom or an alkyl group, and R4 is an alkylene group (see Division C2), and may also contain an emulsifying agent and/or a surface-active agent.  The composition may be a solid, e.g. a dust, wettable powder, or granulate, or it may be a liquid, e.g. a solution, aerosol fluid or emulsifiable concentrate and specified solvents are kerosene and xylene.  Other pesticides, spreaders, adhesives, stickers, fertilizers, activators and synergists may also be present.  When used as a nematocide, the composition may be applied to the soil or to the plants and soil.  A suitable insecticidal composition is obtained by dissolving the active ingredient in acetone and dispersing the acetone solution in distilled water containing an alkyl aryl polyether alcohol type emulsifier.
Patent GB-947138-A (GB)
Title: Tantalum base alloys
IPC: C22C27/02
Filed: 1962-08-07
Abstract: A readily workable cast alloy consists of (1) 2-16% in total of at least two of the metals W, Zr, Mo and Hf, at least two of these metals being present in amounts of 1% or more and no metal exceeding 8% and (2) the balance Ta and impurities.  The alloy contains at least one other metal from the group when W and Hf are present; it may also contain one or more of Nb, Re and Ti up to 2% in total.
Patent GB-266071-A (GB)
Title: Improvements in electric inductance coils
IPC: H01F27/00
Filed: 1925-11-30
Abstract: 266,071. Wildy, E. L., and London Electric Wire Co., & Smiths, Ltd. Nov. 30, 1925. Inductances. - An inductance coil in which the winding layers are separated by ribbed or corrugated spacers and are provided with plug and socket connections has the innermost layer a wound in a core helix directly around the circumference of a plain cylindrical former b.
Patent GB-1256267-A (GB)
Title: Polyester composition for maintaining teeth in clean condition
Inventor: SCHWARTZ ANTHONY MAX
IPC: A61K8/85
Filed: 1969-06-16
Abstract: 1,256,267. Dentifrices. GILLETTE CO. 16 June, 1969 [20 June, 1968], No. 30299/69. Heading ASB. [Also in Division C3] A composition for keeping teeth clean comprises a solution in a physiologically acceptable vehicle of 0.1 to 20% by weight of a polyester of (1) citric acid or a polycarboxylic acid having at least three carboxyl groups and containing, except for the oxygen of the carboxyl groups, only carbon and hydrogen, and (2) a polyalkylene ether having at least 2 hydroxyl groups and a molecular weight of at least 400, the polyester having a molecular weight of at least 600 and a neutralization equivalent of 200 to 5,000, the composition having a pH of 2 to 7. (Division C3). The composition may be a component of a toothpaste, chewing gum or mouthwash, and may also contain conventional additives such as menthol, eucalyptol and methyl salicylate to provide flavour and stringency, and thymol, boric acid and benzoic acid as antiseptics.
Patent GB-1123916-A (GB)
Title: Random article indicator
Inventor: KENT GRAHAM BRUCE
IPC: G07C3/14
Filed: 1966-07-06
Abstract: 1,123,916. Random number generator. MARDON, SON & HALL Ltd., and SCIENTIFIC SYSTEMS Ltd. 19 May, 1967 [6 July, 1966], No. 30309/66. Heading G4D. Apparatus selects a radom article in a predetermined batch of articles passing a reference point. The batch size is set up at 13 to limit the operation of recirculating counters 11, 16. Assuming that a random article has just been indicated at 23 then a signal 24 opens gate 17 so that a high frequency from oscillator 15 feeds counter 16 which cycles rapidly. Articles to be packaged are detected at 10 to advance counter 11. When the counter 11 reaches batch size a signal on 20 turns off gate 17 so as to stop the counter 16 at what is to be the random number for the next batch. When the counter 11 attains this number a coincidence gate 18 operates to indicate or eject the selected article and to turn on gate 17 again.
Patent GB-737246-A (GB)
Title: Rock drill bit with a cutting insert of hard metal
IPC: E21B10/58
Filed: 1953-11-03
Abstract: 737,246. Percussive drills. SANDVIKENS JERNVERKS AKTIEBOLAG. Nov. 3, 1953 [Nov. 3, 1952], No. 30375/53. Class 124. A rock drill bit has a brazed joint between an insert and a groove in the bit of minimum thickness at the sides intermediate the ends and maximum thickness at the ends. As shown, an insert 11 may have spherically curved sides 12 so that the maximum thickness of the joint 16 is at the outer ends of the insert, the sides of the groove being straight. The sides of the insert may be curved cylindrically, or each side may be formed of straight surfaces meeting at an angle at the centre, or the sides may be stepped, Fig. 8. The sides of the groove may be shaped as above and the sides of the insert straight or the sides of both groove and insert may be shaped. The bottom of the groove and/or the insert may be similarly shaped and used in combination or not with shaped sides of the insert and/or groove.
Patent GB-520445-A (GB)
Title: Improvements in and relating to closures for containers for liquids
IPC: B65D47/06
Filed: 1938-10-21
Abstract: 520,445. Closures for containers. BAIRD, F., and STEPHENS, Ltd., H. C. Oct. 21, 1938, No. 30450. [Class 125 (iii)] A closure, which can be fitted on or in the neck 5 of a bottle 6 or other container, has a chamber or reservoir 9 with an outlet spout 14 for liquid and an inlet 13 for air. The chamber 9 communicates with the interior of the container by passages 10, 11, the former having a larger cross-sectional than the latter. The part 15 between the passages 10, 11 is bulged so that, when the container is erect, any liquid left in the chamber 9 will flow back into the container. The projecting part of the spout 14 is preferably inclined at 45 degrees to the axis of the closure. When the container is tilted sufficiently, liquid flows from the container through the passage 10 into the chamber 9 and then out by the outlet 14 while air enters by the passages 13, 11. One broad opening may replace the two passages 10, 11.
Patent GB-768354-A (GB)
Title: Nickel cyclopentadienides and process for preparing same
IPC: C07F17/00
Filed: 1953-11-04
Abstract: The invention comprises nickel cyclopentadienides, in which the cyclopentadienyl radical may be mono- or poly-alkyl substituted if desired.  They may be prepared by reacting an alkali- or alkaline earth metal cyclopentadienide with an anhydrous nickel salt (e.g. nickelous chloride) in the presence of liquid ammonia.  The alkali or alkaline earth metal cyclopentadienide may be prepared by reacting the metal or its amide with cyclopentadiene or its alkyl substituted derivatives in liquid ammonia.  The reaction with the nickel salt may be carried out without isolation of the alkali or alkaline earth metal cyclopentadienide.  In an example sodium metal is added to excess liquid ammonia to give a solution of sodium amide and to this solution cyclopentadiene is added.  After the sodium cyclopentadienide had formed freshly dehydrated nickelous chloride is added and the nickel biscyclopentadienyl isolated by extraction with petroleum mixed hexanes, evaporation of the solution to dryness and sublimation.  Reference has been directed by the Comptroller to Specification 733,129.
Patent GB-748313-A (GB)
Title: Improvements in or relating to electro magnetic relays
IPC: H01H51/06
Filed: 1953-11-05
Abstract: 748,313. Electromagnetic relays. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. Nov. 5, 1953, No. 30586/53. Class 38(5) A miniature relay unaffected by mechanical shock comprises a core surrounded by a coil 14 and secured to an insulating support 10 by a nut 15, the magnetic circuit being completed by long and short L-shaped pole pieces 16, 17 fixed to the core ends and forming between them a gap 18 bridged by a flat strip armature 19. Secured by screws 20 to the pole piece 16 is a contact spring stack 21 comprising contact springs 23, 24, insulated by mica strips 22, and a mounting plate 26 having turned-over lugs 27 supporting a pin 28. The pin 28 pivotally supports an arm 29 carrying a double-ended contact 30 which engages, alternatively, the springs 23, 24, a saddle portion 31 of the arm 29 carrying the armature 19, and an apertured upturned lug 32 of the portion 31 providing a further bearing on the pin 28. The arm assembly is balanced about the pin 28 and biased to hold the armature away from the pole pieces by a torsion. spring 35 acting between a notch in the arm and a lateral projection 36 of the plate 26. Thus when the coil 14 is energized the contacts 24 30 are broken and the contacts 23, 30 are made. The movement of the arm 29 is limited by stops 8, 9 and these may be bent to adjust the movement. A non- magnetic bracket 38 clamped to the core between the support 10 and the coil 14 is fixed to the free end of the pole piece 16 by screws 39 and serves to support the pole piece. The relay is enclosed in a casing which engages a rubber band 41 on the support 10 and the relay has a yieldable connection with the closed end of the casing by means of spring blades 42 clamped to the core. The casing may be sealed to the support 10 and exhausted through a tube 43.
Patent GB-355092-A (GB)
Title: Improvements in and apparatus for the oxidation of nitrites to nitrates
IPC: C01F11/38
Filed: 1930-10-13
Abstract: The conversion, in aqueous solution, of nitrites into nitrates by means of nitric acid and oxygen or gases containing oxygen is effected by producing an intimate mixture of the solution containing nitrite with the nitric acid and oxygen &c. in the lower part of a vertical tube, and allowing the mixture to rise through the tube, the height of the latter being such as to effect complete conversion and separation of the liquid from residual gases being effected at the top of the tube.  In examples, the treatment of calcium nitrite-calcium nitrate sludges containing calcium carbonate and of a solution containing sodium nitrate and nitrite with sodium carbonate are described, and the height of the tube, which may be packed with fillers or be provided with sieves, varies from 6-10 metres depending on the materials treated, and the oxygen content of the gases.  The pressure within the tube may be regulated by a manometer.
Patent GB-296229-A (GB)
Title: Universal joint
IPC: F16D3/42
Filed: 1927-11-15
Abstract: 296,229. Swenson, C. E. Nov. 15, 1927. Universal joints.-In universal joints comprising yokes 4 with pairs of trunnions 6 carried in bearings 11 in a divided ring 7 adapted to store lubricating-oil, the oil is retained and dust &c. excluded by providing each trunnion with a seal, which comprises a cork composition or other resilient washer 15 mounted on a flanged metal ferrule 16, and is pressed by a spring washer 18 against the face 21 of the yoke 4. The washers are radially compressed in the act of drawing together the halves 8, 9 of the ring 7 by nuts 14 and screwed shanks 12 on the bearings 11. The seal is applicable to the trunnion bearings of other types of universal joints, such as those employing a cross member.
Patent GB-1009054-A (GB)
Title: Venetian blinds
Inventor: SKIDMORE RONALD STEPHEN
IPC: E06B9/32
Filed: 1963-08-03
Abstract: 1,009,054. Venetian blinds. J. AVERY & CO. (EST. 1834) Ltd. June 1, 1964 [Aug. 3, 1963], No. 30865/63. Heading E1J.  In a kit of parts for a venetian blind the length-adjustable head rail is formed from inverted U-section sections 20a-20e which telescope one into the other and have turned over edges 201 adapted to receive slidingly into appropriate positions the tilting mechanism C, lifting and lowering mechanisms A incorporating a cord lock and ladder support fittings B, each of these mechanisms being mounted on inverted U-section support plates 502, the ends of the limbs 501 of which are slit to provide tongues 503 which grip the turned up edge portions 201 of the sections 20 and may be held by friction or clinched to the sections. One of the roller supports B for the ladder tapes 30 and the adjacent roller for the tilt operating mechanism C, and the other support roller B are supported on shafts 70 having square sections mounted in apertures in limbs 508 depending from the sections 50. The slats are cut to measure from a roll of strip metal which take up a transverse curved form and the lowest slat comprises two of these slats face to face to enclose elliptically sectioned weights E, the whole being held together by clips 403.
Patent GB-792309-A (GB)
Title: Improvements in or relating to a process for the preparation of di- and tri-alkyl-tin sulphides
IPC: C07F7/22
Filed: 1955-09-16
Abstract: Di or tri-alkyl tin sulphides are prepared by reacting di- or tri-alkyl tin chlorides with an alkali-metal mono- or poly-sulphide in an aqueous medium.  The reaction product may be used as a stabilizer for halogenated vinylic resins.  The examples describe the preparation of tri-butyl tin and di-butyl tin sulphides.
Patent GB-485096-A (GB)
Title: Improvements in photographic and the like lenses
IPC: G02B9/12
Filed: 1936-11-13
Abstract: 485,096. Lenses. WARMISHAM, A., and KAPELLA, Ltd. Nov. 13, 1936, No. 30978. [Class 97 (i)] A photographic objective corrected for spherical and chromatic aberrations, coma, astigmatism, and distortion, comprises three convergent components separated by airspaces, each component having its external surfaces of unequal curvature and presenting the surface of shorter radius towards the longer conjugate. The two outer components aro preferably compound and the inner component may be simple or compound. When the compound components are doublets, the element in each on the side of the longer conjugate preferably has a lower refractive index and a higher Abbe number than the element with which it is compounded. Data are given for the example shown, having a relative aperture f /0À9.
Patent GB-250301-A (GB)
Title: Improvements in gauge glass fittings
IPC: G01F23/02
Filed: 1924-12-29
Abstract: 250,301. Diggle, A. Dec. 29, 1924. Gauge glasses.-The top and bottom members of a gauge glass fitting are provided with removable screw-down valves. The closure member m is provided with a ring p which is rotatably mounted on the end of a spindle n which screws into the cap r. The seating a is removable and may be screwed into the body e or the seating may have a plain or slightly coned shank which is driven into a corresponding hole. Reference has been directed by the Comptroller to Specifications 10928/10 and 240,218.
Patent GB-1198503-A (GB)
Title: Aziridinyl Compounds and a Process for their Preparation
Inventor: COKER WILLIAM PERKINS
IPC: C07D203/10
Filed: 1967-07-06
Abstract: 1,198,503. Aziridinylalkyl esters of polybasic carboxylic acids. DOW CHEMICAL CO. 6 July, 1967, No. 31193/67. Heading C2C. [Also in Division C5] The invention comprises polyesters of the formula wherein n is 3 or 4, A is a C 2-17  hydrocarbyl or substituted carbyl group and R is hydrogen or a C 1-4  alkyl group. The esters are prepared by reacting an alkyl ester A-(-CO.OR 1 )n, where R 1  is C 1-4  alkyl with the appropriate 2-hydroxethylaziridine, preferably in the presence of an alkali metal alkoxide catalyst at 25-110‹ C. Specified esters are aziridinylalkyl esters of trimesic, trimellitic, pyromellitic and citric acids. The esters can be used to inhibit the decomposition of degreasing solvents such as 1,1,1-trichloroethane (see Division C5).