baber/WOPTO huggingface dataset:
Patent GB-797096-A (GB)
Title: Improvements relating to gas leak detectors and to such detectors usable as blow lamps
Inventor: BARNES ARTHUR WILLIAM EDWARD
IPC: F17D5/00
Filed: 1955-09-15
Abstract: <PICT:0797096/III/1> In apparatus for detecting the presence of gases which change the colour of a flame of combustible gas, and comprising a burner tube with air ports communicating with a search tube, the air ports are surrounded by a rotatable sleeve connected to a flexible search tube.  A suitable apparatus consists of a metal bottle 10 charged with butane gas, and provided with a valve 12 regulating the flow of butane through a jet 13 by a knurled screw 14. A hollow burner tube 16 extends horizontally from the body of the jet to which it is screwed, and is provided with a cylindrical flame cup 17 of greater diameter than the burner tube.  A short length of copper tube 18 is let into the flame cup.  In the vicinity of the gas jet 13, four air ports 19 are provided in the burner tube, and are surrounded by a rotatable cylindrical sleeve 20, retained in position by an inner flange 22, which engages a reduced part of the burner tube at 21.  The apparatus is particularly adapted to detect leakage of halogenated gases from refrigerators.  In operation, the open end of the search tube 26 traverses the region of suspect leakage and any gas, e.g. methyl chloride is drawn together with air into the burner tube and effects a change in the colour of the flame emerging from the flame cup.  The apparatus may also be used as a blow-lamp, and the cool primary air prevents over-heating of the burner tube and flame cup and the hottest part of the flame extends well beyond the flame cup.  In place of butane gas, vaporized paraffin, petrol or coal gas may be used.
Patent GB-628940-A (GB)
Title: Improvements in and relating to water sprayers
IPC: B05B3/04
Filed: 1947-10-01
Abstract: 628,940. Spray-producers. SIGMUND PUMPS, Ltd., and SIGMUND, M. Oct. 1, 1947, No. 26547. [Class 69 (iii)] Water is fed to a fixed tube 9 and passes from an outlet 2 of a rotatably-mounted nozzle 1 to a rotatable diffuser 16 having vanes 17, 17<SP>1</SP>. Due to its rotation the diffuser is moved vertically upwards on a spindle 18, and when reaching its uppermost position against a fixed stop 48 the spindle 18 is rotated, and drives, through a worm and worm-wheel, a crank-arm 21 which imparts by a rod 23 rocking movements to a lever 24. The latter is pivoted about a spindle 25 which carries a fixedlymounted ratchet-wheel 27 driven in step-bystep fashion by a pawl 31 pivoted at 32 and having arms 34 and 35, each adapted to make one-way driving engagement with the ratchetwheel. The pawl is retained in one of its selected positions by a spring-loaded plunger 36. A worm 28 secured to the spindle 25 engages a worm-ring 30 and effects step-bystep nozzle rotation about a fixed ring 5. After a predetermined angular movement of the nozzle its direction may be reversed by a lever 38 secured to a spindle 39. The lever carries a two-armed yoke 40, the arms of which may engage with an extending arm 41 of the pawl 31 to move the latter about its pivot 32. A pin 43 attached to the spindle 39 engages with stopmembers 45 arranged in pre-determined positions on a fixed ring 44, and operates the lever 38.
Patent GB-644705-A (GB)
Title: Improvements relating to looms for the manufacture of ribbons and like narrow fabric
IPC: D03D35/00
Filed: 1948-10-16
Abstract: 644,705. Operating shuttles in smallware looms. PORTER, H. S., and PORTER, E. Oct. 16, 1948, No. 26561/47. '[Class 142(ii)] The shuttles d of a smallware loom are passed from one landing b<3> to an adjacent landing by pinions b<4> rotated by a rack b<5> which is reciprocated by a toothed segment c. The segment is oscillated by a rod i connected to a lever h carrying a roller h<1> which engages a cam groove in a cam g rotated by a chain e<3> from the main shaft e. The batten is actuated by a crank e<4> on the main shaft.
Patent GB-358676-A (GB)
Title: Improvements in and connected with the lubrication of epicyclic change speed gear boxes
IPC: F16H57/04
Filed: 1930-09-06
Abstract: 358,676. Lubricating variable-speed gearing. HOUNSFIELD, L. H., 3, Durring. ton Park Road, Wimbledon, London, and TROJAN, Ltd., Vicarage Road, Croydon. Sept. 6, 1930, No. 26647. [Classes 12 (ii) and 12 (iii).] In epicyclic variable-speed gearing comprising a central driven shaft 6 with superposed sleeves 10, 11, 12 carrying brake drums 13, 14, 15, sun wheels 5, 7, 8, 9 secured to the shaft 6 and sleeves 10, 11, 12 respectively meshing with groups of planet gears 16 carried by a casing 4 rotating with the driving shaft 1, oil supplied to the part 18 of the shaft 6 at the inner end of the sleeve 10 is fed axially along the shaft to an annular groove 22 near the outer end of the sleeve by a helical groove 19 of appropriate hand formed either on the shaft or in the sleeve, whence it passes through radial holes 23 in the sleeve. A helical groove formed between the sleeves 10, 11 causes the oil to flow back axially, part passing through radial holes 24 in the sleeve 11. A helical groove is also formed between the sleeves 11, 12, and part of the oil passes through radial holes 25 in the sleeve 12, which runs in a bush 17 in the casing 4 and is provided with a helical groove which returns the oil into the casing. Oil collecting in the latter is returned to the groove 19 through a pipe 32 and passages 33, 34 in the shaft 6 by a pump 28 operated bv a cam 30 on one of the planet groups 16 ; or holes 36 may be drilled between the teeth of the wheel 7 so that oil taken up by the planet wheel 35 is forced through to the groove 19. Leakage of oil from the outer end of the sleeve 10 is prevented by a gland 21.
Patent GB-601634-A (GB)
Title: Improvements in or relating to tea or coffee pots
IPC: A47J31/06
Filed: 1945-10-12
Abstract: 601,634. Tea and coffee pots. FARRANCE, S. A. C. E. Oct. 12, 1945, No. 26758. [Class 129] A tea or coffee pot has a cylindrical upper portion and a frustro-conical lower portion. A cylindrical tea or coffee container, having walls adapted to allow water to pass therethrough, is gripped at its upper end within the upper portion of the pot and rests with its lower end on the bottom of the pot. Spring tongues 8 are formed on the container and engage the inner surface of the cylindrical portion of the pot.
Patent GB-264912-A (GB)
Title: Improvements in and relating to the control of dynamo electric machines
IPC: H02J1/10
Filed: 1925-10-26
Abstract: 264,912. British Thomson-Houston Co., Ltd., and Liddiard, M. W. C. Oct. 26, 1925. Running generators in parallel.-Parallel connected dynamos 11, mechanically coupled together, are caused to take equal loads by providing each with a pair of auxiliary fields, an opposing field 15 being responsive to the current of the associated dynamo and an aiding field 14 being responsive to the mean current of the dynamo. Each field 15 is connected across an exciter 16, the field 17 of which is traversed by the dynamo output, and the fields 14 are series connected with all the exciters 16. The exciters are chain driven from the main shaft and their field windings may be a straight-through single bar similar to a single-turn transformer winding.
Patent GB-234705-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02F7/00
Filed: 1924-11-11
Abstract: 234,705. Rushen, P. C., (Maschinenfabrik Augsburg-Nurnberg dkt.-Ges.). Nov. 11, 1924. Frames; cylinders, construction of.-In a multicylinder engine having a boxframe a to which are secured the cylinder heads b, bearing blocks d, e, for the crank shaft are clamped to the frame a by tie rods c which also serve to hold down a cylinder head b. Flanges c<1> on the tie rods c retain the bearing blocks in position when the cylinder heads are removed. The upper bearing blocks e are adjusted in the ordinary manner by screws f; and between the lower blocks d and the frame a, packing may be placed. A sheet-metal case g forms the lower half of the crank-case.
Patent GB-679969-A (GB)
Title: Improvements relating to machines for topping root crops
IPC: A01D23/02
Filed: 1949-10-20
Abstract: 679,969. Root-crop topping machines. CATCHPOLE ENGINEERING CO., Ltd., COOKSON, J., and FREEBORN, J. E. Oct. 19, 1950 [Oct. 20, 1949], No. 26999/49. Class 6(iii) Relates to the particular kind of machine having tapping knives 75, 76, a set A, B, C of discs for crushing the tops and a second set D, E, for lifting the severed tops, a carriage which carries the knives and discs and which can rise and fall when riding over uneven ground, and means for rotating the two sets of discs: such a machine forms the subject-matter of Specification 605,974. According to the invention the two sets of discs are mechanically interconnected for synchronous identical rotation and the drive to one set is transmitted through the other. In the construction shown the crusher discs A, B, C are mounted for rotation upon a bush eccentrically disposed with respect to a cross shaft 28 to which the bush is bolted, and the lifting discs D, E are similarly mounted and are eccentrically disposed both with respect to the shaft and the other bush. Cross-bolts 1, 2 3 interconnect the discs A, B, C in conjunction with spacer sleeves 10, similar means are employed for interconnecting the discs D, E and the discs are suitably apertured to allow for the relative movements of the pins which pass through them. The cushion discs are driven by chain and sprocket gearing and transmit rotary motion to the lifting discs by parallel links 41, 42, 43. The chain 69 passes around a sprocket on a shaft which is suitably geared to the power take-off shaft 65 of a tractor. The shaft 28 is carried at its ends by links 29, 30, pivoted to the chassis frame 33 of the machine, and its ends extend through clamps 50, 51, of an inverted U-structure 52 ,53, 54 associated with upper links 56, 57, pivoted to members 32 on the chassis and arranged parallel to the links 29, 30. By this means the frame structure carrying the discs can rise and fall, the weight of the frame being in part taken by springs 61, 62. The topping knives 75, 76 are adjustably carried at the lower ends of channel members 83, 84, which can pivot about axes 87, 88, on members secured to the parts 52, 53. The knives can thus yield outwardly upon encountering stones and the like, such movement being against the action of compression springs arranged as shown. In a modification, Figs. 4 and 6 (not shown) the drive is taken from the land wheels.
Patent GB-1463849-A (GB)
Title: Process for the manufacture of free-flowing pulverulent rubbers
IPC: C08F297/04
Filed: 1974-06-19
Abstract: 1463849 Pulverulent rubbers from solutions thereof CHEMISCHE WERKE HULS AG 19 June 1974 [20 June 1973] 27094/74 Heading C3P A free-flowing pulverulent rubber is made by emulsifying a solution of a rubber which is a block polymer containing a crystalline or thermoplastic polymeric block, in water in the presence of an emulsifier, introducing said emulsion continuously into hot water and at the same time continuously distilling off the rubber solvent of the original solution, and finally separating the resulting finely divided rubber from the water and drying it. Suitable block polymeric rubbers are sequence type ethylene/propylene copolymers, or E.P.D.M. polymers of the sequence type, and block copolymers of butadiene with styrene or alpha methyl styrene. The hot water into which the emulsion is introduced, may contain a precipitant such as sodium silicate, which is used in the examples. Suitable emulsifiers have the general formula (NR 4 )<SP>+</SP>X<SP>-</SP> in which each R is alkyl or aralkyl with up to 20 carbon atoms and X is a halogen or alkyl sulphate ion.
Patent GB-1146645-A (GB)
Title: Polyurethane-asphalt compositions
IPC: C08G18/00
Filed: 1966-06-17
Abstract: 1,146,645. Polyurethane-asphalt compositions. SINCLAIR RESEARCH Inc. 17 June, 1966 [18 June, 1965; 22 March, 1966], No. 27109/66. Headings C3N, C3P and C3R. A composition comprises asphalt and a polyurethane prepared by reacting a diisocyanate with a polyhydroxy polymer having an average of at least 1À8 predominantly primary, terminal, allylic hydroxyl groups per molecule and being an addition polymer of 0-75% by weight of a C 2-12  alpha-olefinic monomer and 25-100% of an unsubstituted, 2-substituted or 2,3-disubstituted C 4-12  1,3-diene, the polyhydroxy polymer having a viscosity at 30 C. of 5 to 20,000 poises having the majority of its unsaturation in the main carbon chain and a number average M.W. of 400 to 25,000, the polyurethane being uncured or partly cured when combined with the asphalt. Suitable dienes are 1,3-butadiene, isoprene, chloroprene, 2-cyano-1,3-butadiene, 2,3-dimethyl-1,3-butadiene, 2-phenyl-1,3-butadiene and 2-methyl-3- phenyl-1,3-butadiene and they may be polymerized, suitably in an H 2 O 2 -alcohol, with an alpha-olefin such as styrene, vinyl toluene, methyl methacrylate, methyl acrylate, acrylic esters, vinyl chloride, vinylidene chloride, acrylonitrile, acrylic acid, vinylidene cyanide and acrylamide. Suitable diisocyanates are the tolylene diisocyanates, 4,41-diphenylmethane diisocyanate, 1,5-naphthalene diisocyanate, phenylene diisocyanates, transvinylene diisocyanate, hexamethylene diisocyanate, octamethylene diisocyanate and 3,3<SP>1</SP>-dimethoxy- 4,4<SP>1</SP>-biphenyl diisocyanates, beside the polyisocyanates which are the reaction products of a diisocyanate with a polyhydroxy compound and also polyphenylmethane polyisocyanate. Other conventional polyethers and polyesters may be combined with the allyl hydroxyl diene polymers and chain extending agents such as diamines and glycols may be included in the reaction mixture. A one or two-step procedure for preparing the compositions may be adopted provided that the asphalt is added before complete curing of the polyurethane. Sulphur and other conventional vulcanizing agents may be used to cross-link the polymers, which may be blended for co-vulcanization with conventional diene rubbers. Carbon black may also be present. Paving compositions may be prepared by binding sand of  inch down to 100 mesh A.S.T.M., or a powdered filler such as limestone, sand, silicas, clays, crushed stone, gravel and air-cooled slag (¢-3 inches), or cinder-like aggregates with the asphalt-polyurethane composition. Hydrocarbon oils may be used to give the asphalt composition a workable viscosity. The asphalt may be a mineraloil crude residue having Pen 20-300 (77 F.) and may have softening point 225 F. Instead of asphalt, coal-tar pitch or asphaltenes may be used with or without chlorinated biphenyl ethers, chlorinated waxes, rosin esters, styrene/ maleic-anhydride esters and amides, or polybutenes.
Patent GB-1110302-A (GB)
Title: Pressure exchanger
Inventor: RUFFLES PHILIP CHARLES
IPC: F02C3/02
Filed: 1966-06-17
Abstract: 1,110,302. Pressure exchangers; gas turbine engines. ROLLS-ROYCE Ltd. June 17, 1966, No. 27149/66. Headings F1G and F1N. Driven rotor vanes 27, Fig. 3, of a pressure exchanger are curved in the direction of rotation 29 at ends 40 adjacent a fixed wall 30 having alternate ports 34, 35 for admitting air at high-pressure and discharging it at a higher pressure; the opposite ends of the cells being closed by a fixed wall 31 having alternate ports 32, 33 for admitting hot high-pressure combustion gas and discharging it at a lower pressure. Each air inlet port 34 is inclined in the direction of cell rotation and air enters the cells in an effective direction 44 thereby houving a component opposite to the direction of cell rotation and so impinges against the curved ends 40 of the rotor vanes and is thereby precompressed. The hot gas inlet 32 is also inclined in the direction of cell rotation and its effective entry is along a line 38 houving a component in the direction of cell rotation thereby assisting their rotation. High-pressure inlet air is provided by rotary compressors 11, 12, 13, Fig. 1, of a jet engine of the by-pass type. Compressed air from outlet 35 is fed to a combustion chamber 22, hot gases therefrom are fed to inlets 32 and gases leaving outlets 33 are fed to turbines 15, 16 which drive the cell rotor and compressors 11, 12, 13.
Patent GB-1398822-A (GB)
Title: Process for the continuous production of hexamethylene diamine  by hydrogenation of adiponitrile
IPC: C07C209/48
Filed: 1973-06-07
Abstract: 1398822 Hexamethylene diamine DAVYASHMORE AG 7 June 1973 [4 Aug 1972] 27170/73 Heading C2C In the manufacture of hexamethylene diamine by the hydrogenation of adiponitrile at a hydrogen partial pressure of more than 25 atm. (gauge) and in the presence of ammonia, the catalyst used is one made by granulating or pelletizing a homogeneous mixture of cobalt oxide, hydroxide or carbonate and an alkali metal or alkaline earth metal compound and subsequently heating the granules or pellets at 80‹ to 350‹ C. in an atmosphere of hydrogen until there is at least partial reduction of the cobalt compound to cobalt metal. The treatment of the catalyst may take place during the early stages of the process for preparing hexamethylene diamine. The alkali metal or alkaline earth metal compound is a hydroxide or a compound (e.g. a carbonate) which is later converted to a hydroxide.
Patent GB-1020014-A (GB)
Title: Improvements in or relating to a method of treating gas
Inventor: COCKERHAM ROBERT GEORGE
IPC: C23F15/00
Filed: 1963-07-09
Abstract: <PICT:1020014/C4-C5/1> The methane-containing gas produced by the process of the parent Specification is passed with steam, at a temperature sufficient to convert methane by reaction with steam into carbon monoxide and hydrogen, in turbulent flow through the passage 5 between an externally heated tube 1 and a body 2 covered with a layer of catalyst 3.  In a modification the external surface of the body 2 may be corrugated and the product gases are withdrawn through its interior.
Patent GB-1148909-A (GB)
Title: Process for production of novel phenylhydrazone and phenylhydrazine derivatives
IPC: G03B7/085
Filed: 1966-04-13
Abstract: 1,148,909. N<SP>1</SP>-acylated phenyl hydrazines and hydrazones. SUMITOMO CHEMICAL CO. Ltd. 13 April, 1966 [26 April, 1965 (3); 7 Dec., 1965; 8 Dec., 1965; 20 Jan., 1966; 31 Jan., 1966], No. 27273/67. Divided out of 1,148,908. Heading C2C. Novel hydrazines and hydrazones of formulµ wherein R<SP>1</SP> is an aromatic ring optionally substituted by C 1-2  alkyl, C 1-2  alkoxy or C 1-2   alkylthio or is a N, O or S containing 5- or 6-membered heterocyclic ring optionally substituted by halogen, methyl or ethyl, R<SP>6</SP> is C 1-2  alkyl, C 1-2  alkoxy, C 1-2  alkylthio, NO 2 , OH or halogen in the meta or para position to the hydrazino group and R<SP>7</SP> and R<SP>8</SP> are each H, alkyl optionally substituted by halogen, OH, alkoxycarbonyl, alkoxy or phenyl, are prepared, in the case of the hydrazones, by reaction of R<SP>1</SP>COY, where Y is a halogen or ester residue, with a compound of formula and, in the case of the hydrazines, by the same reaction with spontaneous or induced decomposition of the N-acyl hydrazones of the above formula. Pharmaceutical compositions having psychic stimulant, anti-tumour, bactericidal and fungicidal activity comprise an above novel compound and a carrier or diluent therefor.
Patent GB-444963-A (GB)
Title: Improvements relating to the composition and manufacture of gramophone records
IPC: G11B3/70
Filed: 1934-09-25
Abstract: Compositions for making gramophone records are prepared by heating together a mixture of (a) a product obtained by heating together flake carbon and calcium hydroxide or calcium chloride to a red heat (b) Portland cement (c) carbon, e.g. graphite or the soot obtained by burning paraffin oil so that the flame smokes (d) kaolin (e) a resinous varnish, e.g. oak varnish or a varnish obtained by heating rosin, pitch or tar oil and glycerine together and (f) a resinous oil obtained by mixing pitch and/or tar with dilute acid, such as sulphuric acid, orange peel or pulp or a watery liquid strained off from the decomposing peel of orange or other citrus fruit, sodium nitrate, alum, sugar of lead, permanganate of potash, paraffin oil and a compound obtained by burning wool, wool waste, or worsted waste to ash and adding alum and ammonium chloride.  Gramophone records may be made by spreading the mixture on a thin aluminium or other suitable metal disc, heating for a short time at a low temperature, pressing to impart a smooth surface, subsequently heating for a short time just before the cutting or recording operation and finally baking at a low temperature.  According to the Provisional Specification the ingredient (a) may be substituted by calcium carbide, the ingredient (b) may be substituted by magnesium oxide and paper, wood ash and steatite may be added as additional ingredients.
Patent GB-376566-A (GB)
Title: Improvements in tobacco feeding mechanism for cigarette making machines
IPC: A24C5/39
Filed: 1931-10-05
Abstract: 376,566. Cigarette-maldng machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co. ; 611, 5th Avenue, New York, U.S.A.) Oct. 5, 1931, No. 27593. [Class 130.] To obtain a uniform layer of tobacco on a feeding-drum 6, a plurality of heavy rings 21 are loosely supported on a shaft 10 and are independently movable by gravity towards the drum. The rings are separated by discs 20 and may be provided with internal teeth 22 which mesh with teeth 19 on the shaft 10, which is supported by pivoted arms and is rotated by a belt 16. Revolving rakes 25 prevent tobacco from reaching the drum over the tops of the rings. The teeth 22, 19 may be omitted, the rings 21 being rotated by the movement of the tobacco caused by the rotation of the drum 6.
Patent GB-369531-A (GB)
Title: Improvements in or relating to machines for stripping the pulp from parts of fibrous plants
IPC: D01B1/10
Filed: 1931-10-05
Abstract: 369,531. Conveying-arrangements in machines for decorticating fibrous plants. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London. - (Krupp Grusonwerk Akt.-Ges., F. ; Buckau, Magdeburg, Germany.) Oct. 5, 1931, No. 27662. [Class 120 (i).] In a machine for stripping pulp from parts of fibrous plants and having endless upper and lower ropes at each working position for feeding and gripping the material, the endless upper rope is guided twice or more than twice over a conveyer pulley and two guide pulleys, a separate tension pulley being provided for all or several of the loops, the pulleys being mounted coaxially so as to rotate independently. In the machine shown, the upper rope 1, Fig. 1, runs in three loops over the conveyer pulley 2 and guide pulleys 3, 4 and each loop is provided with a tension pulley 6, 7 or 8 mounted freely on the shaft 13. The pulleys 2, 3, 4 have three grooves for the rope 1, Fig. 2, and one groove for the lower rope 5 which successively engages the pulleys 11, 4, 2, 3, 9, while the pulleys 7, 8 are smaller than the pulley 6 to avoid rubbing of the crossing laps of the rope 1. The shaft 13 rests in a carriage 14 movable in guides in the arms 16 and under the action of a spring 12 so that the rope 1 is maintained in tension.
Patent GB-803797-A (GB)
Title: Improvements in and relating to arbors for milling machine cutters and like rotary tools
Inventor: WEBSTER JOHN SAMUEL
IPC: B23C5/26
Filed: 1955-09-29
Abstract: 803,797. Milling-cutters and arbors. SHEFFIELD TWIST DRILL & STEEL CO., Ltd. Sept. 21, 1956 [Sept. 29, 1955], No. 27739/55. Class 83 (3). A milling-cutting arbor comprises an outer-end having an inner screwthreaded portion to receive a locking-nut 8, and an outer screw-threaded portion of opposite hand to receive a tool 15. The threads are single or double-start and are of the same pitch. The nut is registered by cylindrical portions 9, 5 and the cutter by portions 5, 7. The tool may be mounted by means of an inner sleeve. The hands of the threads are determined by the direction of rotation of the cutter.