baber/WOPTO huggingface dataset:
Patent GB-757695-A (GB)
Title: Improvements in or relating to the ignition of fuel burners in furnaces
Inventor: COOPER REGINALD BRUCE
IPC: F23C99/00
Filed: 1952-10-08
Abstract: 757,695. Igniting burners. ASSOCIATED BRITISH COMBUSTION, Ltd. Jan. 8, 1954 [Oct. 8, 1953], No. 25223/52. Classes 75(1) and 75(3). Furnace ignition apparatus comprises a burner and an electrical ignition device movable by control means into and out of the furnace, the movements being co-ordinated so that after the device has ignited the burner, the ignition device, and after a time interval, the burner, are withdrawn from the furnace by the control means, the time interval permitting ignition of the furnace by the burner. In a system for igniting a pulverized fuel furnace by means of an oil burner and an electrical resistance or spark igniter, the igniter is first moved forward into the furnace, and in doing so opens two doors which normally isolate the igniter and the oil burner, respectively, from the furnace. The oil burner is then moved into the furnace, and, on reaching their respective forward positions, the igniter is energized and the oil burner supplied with fuel. As soon as the oil flame is established the igniter is withdrawn into an air cooled casing, a door, e.g. a pivoted flap or a sliding element, being closed to isolate the igniter from the furnace. Subsequently when the pulverized fuel flame has been established a thermally responsive device or a time delay device may initiate withdrawal of the oil burner from the furnace. A flame detector such as a light sensitive cell or a thermopile may initiate withdrawal of both igniter and burner to their starting positions in the absence of a flame. The movements of the burner and igniter in and out of the furnace may be controlled, by a thermopile or other pyrometer, in accordance with the furnace temperature, or may be controlled in accordance with variations in the load of an electrical generator associated with the furnace.
Patent GB-869308-A (GB)
Title: Improved casing closures for textile machinery
Inventor: ASHWORTH JOHN WILSON
IPC: D01G15/32
Filed: 1958-08-06
Abstract: 869,308. Sliding doors. TWEEDALES & SMALLEY Ltd. Aug. 5, 1959 [Aug. 6, 1958], No. 25238/58. Class 20(3) [Also in Groups XXIV and XXXIV] The casing of an opener, hopper feeder or other textile machine is closed along one side by an arrangement of doors comprising one hinged door A, Fig. 1, and one or more coplanar sliding doors E which can move into the space made by opening the hinged door. Closure of the hinged door serves to lock the sliding doors in their closed positions and may operate a switch S controlling the machine. Alternatively the door A may have a locking handle controlling the circuit of the machine motor. As shown the door A is in two parts, hinged together at D, and is hinged to the casing at B. Each sliding door E is carried by upper rollers K, Fig. 2, running on an upper horizontal grooved track bar F supported by brackets H, and lower rollers Q, Fig. 3, running on a lower horizontal track bar M. Each roller Q is mounted to rotate about a vertical axis in a bracket R which is curved over the bar M to prevent outward movement of the door. When the hinged door A is open the doors E have freedom to slide or may, if desired, be lifted off the track bars F and M. Each door E may have an inspection window T.
Patent GB-389115-A (GB)
Title: Improvements in or relating to strengthened or safety glass
IPC: C09J133/06
Filed: 1931-09-09
Abstract: Isoprenoid hydrocarbons are extracted from balata or guttapercha by means of chloroform after removing the resins with acetone. Rubber-like isoprene polymers may be partially depolymerized, mixed with a polymerizable compound such as indene, styrene or coumarone and subsequently repolymerized.  Examples describe the preparation of syrupy, pasty or solid interpolymers from (a) methyl acrylate, vinyl cyanide and isoprene, (b) isoprene and styrene, (c) methyl acrylate and coumarone, (d) methyl acrylate and methyl methacrylate, (e) methyl acrylate, methyl methacrylate and dibutyl phthalate, (f) methyl acrylate and isoprene, (g) isoprene and methyl methacrylate, (h) methyl acrylate, vinyl acetate and dibutyl phthalate, by heat, using benzoyl peroxide as a catalyst.
Patent GB-424980-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K17/08
Filed: 1933-09-13
Abstract: 424,980. Induction motors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Morrill, W. J. ; 2317, South Wayne Avenue, Fort Wayne, Indiana, U.S.A.) Sept. 13, 1933, No. 25387. Convention date, Sept. 13, 1932. [Class 35] A split-phase induction motor is so designed that the speed-torque curve shows a marked dip of the torque at a speed well below the maximum, with the result that the motor has two stable speed ranges, one below the dip and one above, and means are provided for producing a torque corresponding to each of these ranges. Fig. 3 shows a machine with two windings 22, 23 and a phase-splitting resistance 13. A centrifugally operated switch 14 short-circuits the resistance 13 when the motor has speeded up and the switch 19 selects the winding to be left in circuit for running. Fig. 5 shows a machine with a starting winding 26, cut out by a centrifugally operated switch 28, and a running winding 25, on which either of two voltages can be impressed by an autotransformer 29 and switch 30. To give a speed-torque curve of the required character, the rotor of the machine shown in Fig. 5 is formed with deep slots 21. In the arrangement shown in Fig. 3, the winding 23 is a distributed winding, but the winding 22 is a concentrated full pitch winding producing a forward revolving-third harmonic of flux. The rotor 15<1> has four squirrel cage bars producing a harmonic locking with the harmonic of the stator flux and giving a curve of the type required. The rotor in this case is preferably secured to its shaft by a spring coupling.
Patent GB-578469-A (GB)
Title: Improvements in tea infusers
IPC: A47G19/16
Filed: 1944-12-19
Abstract: 578,469. Tea infusers. KULA, W. Dec. 19, 1944, No. 25461. [Class 129] An infuser 10 has its cover 14 lifted and returned by means of a finger ring 12, or a knob, and a sleeve 13 with a finger-gripping flange 131 to prevent handling of the parts which enter the liquid. Tongues 113 engage one or other of grooves in a plunger 11 to hold the cover in its open or closed position. In a modification a thumb-operated knob is used to force the plunger downwards against the action of a spring. The parts 10, 14, may meet in a plane lying parallel with that of the plunger 11.
Patent GB-1339616-A (GB)
Title: Electronic flash apparatus for endoscope photography
IPC: A61B1/04
Filed: 1971-04-19
Abstract: 1339616 Endoscopes RICHARD WOLF GmbH 19 April 1971 [26 March 1970] 25468/ 71 Heading A5R [Also in Division G2] An electronic flash device associated with an endoscope (not shown) comprises at least one flash tube 7 with associated mirror 10 and condenser 11, a pilot lamp 18 with associated mirror 19 and condenser 20, for observing the object to be photographed; a pivotable deflecting prism 23; and a fibre optic bundle 12 connectable to a light conductor 15 which forms part of the endoscope. The axes 17, 2.1 of the lamp and optical systems are inclined, as shown at 90 and the prism in the position shown deflects light from the pilot lamp 18 into the bundle 12. On operation of the shutter of the endoscope, an electromagnet is energized to pivot the prism 23 out of the path of light from the flash tubes 7, which are in turn energized in response to the prism pivoting movement.
Patent GB-884105-A (GB)
Title: Insert for vessels containing pills, tablets or the like
IPC: B65D25/10
Filed: 1959-07-24
Abstract: 884,105. Portable containers. LIND, E. T. G. July 24, 1959 [Feb. 28, 1959], No. 25486/59. Class 66. An insert for holding the contents, e.g. tablets, of a bottle in position comprises a member of resilient material such as polyethylene, cardboard or metal foil. The insert comprises arms 2 and a recess 4 into which a mandrel 6 may be fitted in order to force the insert into the bottle. The arms 2 may have steps formed in them, Fig. 16 (not shown) ; or have protuberances, Fig. 17 (not shown) ; or be variously formed in cross-section e.g. with ribs, Figs. 19-21 (not shown). The device may be used with a tube having a threaded cap or stopper.
Patent GB-761872-A (GB)
Title: Improvements in or relating to fan rotors and blade units therefor
IPC: F04D29/38
Filed: 1953-09-15
Abstract: 761,872. Screw fans. COLLINS, A. L. Sept. 7, 1954 [Sept. 15, 1953], No. 25489/53. Class 110 (1). A fan rotor comprises a boss having an undercut circumferential groove, and a blade unit mounted on the boss, the blade unit being an integral moulding comprising an anchor ring which fits into the circumferential groove and a number of fan blades which extend outwards from the anchor ring and are of soft elastic material. Four fan blades 11, Fig. 2, are moulded integrally with an anchor ring 12, of soft elastic material such as rubber, polyvinyl chloride or a synthetic rubber such as neoprene. The anchor ring 12 is slid over a substantially cylindrical surface 24 on to a conical surface 22 formed in a hub 13, and is held against radial displacement under centrifugal force by an undercut surface 23 and by a hub cap 20 which overlaps the anchor ring 12, the latter being recessed at 26 for this purpose. A screw 19 is threaded into the fan shaft 15 to hold the shaft and the cap 20 in position. A flat 18 on the shaft 15 engages a corresponding projection 17 formed in the bore 16 of the hub. A circumferentially-extending layer of a material such as canvas may be embedded in the ring 12 to reinforce it. In an alternative construction, Fig. 4, the cap 20 is omitted and the ring 12 is stretched over the front wall 24a of the circumferential groove 21 until it springs into place in the groove. The undercut shape of the rear wall 23 of the groove 21 retains the ring 12 in place, but if necessary clips or other retaining means may be used. A circumferentially-extending reinforcing wire may be embedded in the anchor ring near its larger diameter end. The anchor ring may be cylindrical. The hub may be formed in front and rear portions which are secured together by screws extending into the front portion from the hollow interior of the rear portion, the front portion overlapping or interengaging with the anchor ring to hold it in place in a circumferential recess in the rear portion. The Provisional Specification states that the circumferential recess in the hub which accommodates the anchoring may be of rhomboidal cross-section, with the front and rear walls inclined forwards at, say, 45 degrees to the axis. The anchor ring may be replaced by a conical cup with integral blades projecting outwards about midway between its front apex and rear rim and with an inwardly turned lip around its rear rim which engages a rearwardly directed rim on the hub.
Patent GB-683004-A (GB)
Title: Highly acid-resistant objects
IPC: C22C5/00
Filed: 1950-10-20
Abstract: Highly acid-resistant objects, especially chemical appartus, consist wholly or in part of alloys containing 10-65 per cent palladium and 15-50 per cent silver, the balance being gold in an amount of 20-65 per cent with or without 0.05-5 per cent in all of one or more of zinc, cadmium, magnesium, tin, copper, germanium, indium, manganese, iron, cobalt and nickel.  Spinning nozzles, formed of an alloy of 30 per cent gold, 30 per cent palladium, 37 per cent silver, 1.5 per cent zinc and 1.5 per cent tin may be homogenized for an hour at 1000 DEG C and tempered for half an hour at 500 DEG C.  Objects may be formed wholly of, or clad with the alloy or a silver or silver-coated base may have gold and palladium electrolytically deposited thereon in such proportions that by means of a subsequent heat treatment an alloy of the above composition is formed.
Patent GB-840044-A (GB)
Title: "apparatus to prevent the winding of fibres around delivery rollers of textile machines"
IPC: D01H5/00
Filed: 1957-08-14
Abstract: 840,044. Gill boxes; removing static charges. DOTTI, E. L. Aug. 14, 1957, No. 25682/57. Classes 120(1) and 120(2). [Also in Group XXXV]  In a high-speed gill-box or like machine for doubling, drawing and combing sliver, electrostatic charge on the fibres is dissipated by a grounded endless metal conveyer 5 arranged immediately behind the delivery rollers 2, 3 which feed sliver into a funnel 11, the conveyer being located with its receiving end close to the tip of rollers 2, 3, and being driven at a speed approximately equal to the peripheral speed of the rollers. The conveyer consists of a pair of parallel roller chains 8 interconnected by transverse rods 9 and passing over driving sprockets 6 and small guide rollers 7. The length of the transporting run of the conveyer may be varied by adjusting the axle of sprockets 6, the return run being guided by tension rollers. A cleaning device 10 removes fibres from conveyer 5. A similar superposed conveyer 12  may also be provided. Specifications 642,647 and 688,862 are referred to.
Patent GB-613520-A (GB)
Title: Improvements in or relating to valves
IPC: F16K41/04
Filed: 1945-10-03
Abstract: 613,520. Valve accessories. KUGLER FONDERIE ET ROBINETTERIE SOC. ANON. Oct. 3, 1945, No. 25692. Convention date, Oct. 11, 1944. [Class 135] [Also in Group XXVI] In a valve having a non-reciprocating actuating spindle, an annular member forming part of and conforming with the profile of the valve casing is rotatable,to adjust the pressure on the spindle packing. The annular member 18, Fig. 1, positioned between a handle 8 and the valve cap 11, has a square-sectioned bore engaging the squared end of a gland sleeve 14 threaded into the valve cap, so that rotation of a suitable key co-operating with flats or grooves 19 on the annular member, imparts axial movement to the gland sleeve and adjusts the pressure on the spindle packing 16. In a modification, lugs 21, Fig. 3, on the annular member slide in grooves in a threaded sleeve 9, forming the connecting union between the valve cap 23 and the valve body 1, and thus relative rotation of the cap and the annular member adjusts the pressure on the packing ring 24. In a further construction, a manually rotatable dome-shaped annular member 36, Fig. 5, having indentations 35 in sliding engagement with grooves in the threaded gland sleeve 32, forms a protective casing enclosing the upper portion of the valve.
Patent GB-590517-A (GB)
Title: Rotary air compressor
IPC: F04C29/00
Filed: 1944-12-22
Abstract: 590,517. Rotary compressors. BENDIX AVIATION CORPORATION. Dec. 22, 1944, No. 25760. Convention date, July 30, 1943. [Class 110 (ii)] A Roots' blower is designed to compress gas trapped between lobes 8, 12 and a wall 14 to a pressure higher than the pressure of the gas in the delivery 3, and suddenly release the trapped gas to temporarily raise the pressure in 3 and prevent back-surging of gas into the compressor. The rotors may run with very fine clearances between them and between each rotor and its wall. A relief channel 18 may be provided to prevent excessive compression of the trapped gas, and its length may be varied to vary the compression ratio. A channel 19 extends along a portion of the wall 14 to allow for slight inward flexing of the wall due to temperature differences between the parts 17 and 19.
Patent GB-921248-A (GB)
Title: Improvements in or relating to mercapto-succinates and the preparation thereof
Inventor: RENAULT JEAN
IPC: C07D295/027
Filed: 1960-07-25
Abstract: The invention comprises mercaptosuccinates of amines which themselves are known to possess some therapeutic function (including salts wherein one of the acidic functions of mercaptosuccinic acid is neutralized with an inorganic base and the other with an amine); the preparation thereof by reacting mercaptosuccinic acid or an acidic salt with the appropriate amine in a compatible solvent (i.e. a solvent that will not react with the amine or with the acid) and maintaining the temperature of the reaction medium below 30 degrees; and pharmaceutical compositions containing the salts.  Preferred amines are those known to posses vasco-constrictor, broncho-dilator, antihistammic or local anaesthetic therapeutic functions.  Inorganic bases also used in forming mixed salts include the elements Na, K, Ba, Ca, Ag and Bi.  Examples are given of salts of 1-phenyl-2-aminoethane, diphenylaminomethane, 1,2-diaminoethane, 1-phenyl-1-aminoethane, 1 - diethylamino - 2 - hydroxyethane, piperidine, 1 - piperidino - 2 - hydroxyethane, morpholine, 1-morpholino-2-hydroxyethane, 1-oxo - 1 - phenyl - 2 - methylaminopropane and ephedrine.  Pharmaceutical compositions having detoxicant properties comprise the salts of the invention together with a pharmacologically acceptable diluent or carrier, and may be formulated as tablets, pills, dragees, suppositories and solutions for injection and solutions for administration as an aerosol nasal instillation or spray.
Patent GB-948638-A (GB)
Title: New antibiotic and process for its manufacture
IPC: G01N33/487
Filed: 1960-07-25
Abstract: <FORM:0948638/C2/1> <FORM:0948638/C2/2> The new antibiotic Avilamycin is a neutral substanc forming colourless crystals melting at 188-189.5 DEG C., has optical rotations <FORM:0948638/C2/3> =+0.8 DEG (C=1.165) in absolute ethanol and <FORM:0948638/C2/4> =-7.7 DEG (C=1.083) in chloroform, has the elementary analysis C=51.24%, H=6.54%, Cl=4.93%, O(Calc.)=37.29%, CH3O=8.79%, C(CH3)=8.97%, active H=0.68%, contains no nitrogen or sulphur, has a molecular weight of 708 and probable formula C31 H47O17Cl, exhibits in absolute ethanol the UV-spectrum shown in Fig. 1 and in potassium bromide the IR-spectrum shown in Fig. 2, and yields on hydrolysis with dilute mineral acid three sugar-like reducing substances which exhibit in the paper chromatogram (system: n-butanol+glacial acetic acid+water 4:1:1) R values of 0.18, 0.41 and 0.52 respectively. Avilamycin may be produced by cultivating Streptomyces viridochromogenes NRRL2860 or an Avilamycin-producing mutant thereof in a nutrient solution until the medium exhibits a substantial antibacterial activity and then isolating Avilamycin e.g. by extraction with a water-immiscible organic solvent or by adsorption, e.g. on carbon or fuller's earth followed by extraction with an at least partly water-soluble organic solvent.  Pharmaceutical preparations comprising Avilamycin and a pharmaceutical carrier are suitable for enteral, parenteral or local administration and may be in the form of tablets, dragees, powders, ointments, creams, suppositories, solutions, suspensions or emulsions.
Patent GB-1463107-A (GB)
IPC: G02C7/04
Filed: 1974-06-11
Abstract: 1463107 Contact lenses J P F STRACHAN and V S LOWE 11 June 1974 [19 June 1973]  25866/74 Heading G2J A soft contact lens has at least one of its front and back surfaces of toric form and is stabilized on the cornea by means of one or more truncations as illustrated in Figs. 1 and 2, or by means of such truncations in combination with prism-ballast. The second surface of the lens is either spherical or toric. Either surface may be bifocal.
Patent GB-1532875-A (GB)
Title: Underground roadway support equipment
IPC: E21D19/04
Filed: 1976-06-22
Abstract: 1532875 Underground roadway driving installation COAL INDUSTRY (PATENTS) Ltd 17 June 1977 [22 June 1976] 25883/76 Heading E1F Roof support canopy assembly securable to a roadway excavating machine to extend over at least a portion of the machine's cutting unit comprises a canopy, means, e.g. a pair of pivotable arms 42, 44, connectable to the machine for supporting the canopy, and means, e.g. telescopic struts 52 or jacks of settable length, associated with the canopy support means for limiting movement of the canopy away from the roof. The canopy comprises an arcuate beam 27 carrying abutment pads 28, 32. Guide means, e.g. plates 56, are mounted on the inner face of the beam 27 for contact by means 58 on the cutter-carrying boom of the machine for limiting the movement of the cutter within a pre-selected roadway profile. A vertically pivotable roof support erector 48 is mounted on the machine by arms 50 that serve as slideways for the transfer of roof support sections forwards from the rear of the machine.
Patent GB-406224-A (GB)
Title: Improvements relating to sheet conveyors for bronzing, printing and other machines
IPC: B41G1/00
Filed: 1933-09-20
Abstract: 406,224. Sheet conveyers for bronzing, printing, &c. machines. FRIEDHEIM, Ltd., O., 7, Water Lane, Ludgate, London.- (Kohlbach & Co. ; 68, Aurelienstrasse, Leipsic, Germany.) Sept. 20, 1933, No. 25959. [Class 100 (i).] In printing, bronzing, or other machines in which paper sheets 2 are carried through the machine by an endless-band conveyer 3, the roller 7 carrying the delivery end of the conveyer 3 is formed with an uneven surface so as to deform the band and thus prevent the sheet adhering thereto. The uneven surface may be formed by means of a spiral 8 on the roller 7.
Patent GB-1179415-A (GB)
Title: Improvements in or relating to the Casting of Rocket Motor Propellants
Inventor: GORDON STUART
IPC: B29C43/00
Filed: 1966-06-10
Abstract: 1,179,415. Rocket motors. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 15 May, 1967 [10 June, 1966], No. 25977/66. Heading F3A. A method of casting a solid propellant charge for a rocket motor, comprises filling a mould cavity 11 with granules of a casting powder, e.g., nitrocellulose, compressing the granules with a fluid-pressure actuated pressing member 18, introducing a casting liquid, e.g. nitroglycerine, via passages 32 in the pressing member, into the compressed granules under gas pressure to displace air from interstices between the granules, maintaining the fluidpressure on the pressing member at a constant magnitude, and curing the propellant so formed to a hard mass under the constant pressure applied to the propellant by the pressing member. The mould cavity may be lined with cellulose acetate. The pressing member is actuated by air fed into a cylinder 22, the pressure being maintained constant by a valve. The casting liquid is fed from an inlet 28 and pressurized with gas from an inlet 31. Modified apparatus are used for casting a casebonded motor having forward and aft chambers, and for casting a bi-propellant motor having coaxial first and second stages.
Patent GB-856325-A (GB)
Title: Vat dye printing
Filed: 1957-08-19
Abstract: A water in oil emulsion, in which a vat dye pigment is dispersed in the aqueous phase and the oil phase contains an amount of from 1,0-4,5% by weight of the total emulsion of a caustic alkali permeable resin, is applied in the form of a printing paste to a textile material.  The textile material is dried, padded with a reducing agent consisting of caustic alkali metal hydroxide and sodium hydrosulphite, steamed between 212 and 290 DEG F. for 7-30 seconds, oxidised, washed and dried.  Suitable water in oil emulsions contain 25-50 parts by weight of an oil phase made up of 1,8-6,0 parts of a caustic alkali-permeable film forming resin, 0-12 parts of pine oil or turpentine, the remainder being a water-immiscible solvent and 75-50 parts by weight of aqueous phase made up of 5-25 parts of vat dye pigment, 6 parts of dispersing agent the remainder being water.  Printing pastes for use in the colouring of the textile material by use of e.g. intaglio rolls may comprise water in oil emulsions containing 0,02-6,0% of vat dyestuff (dispersed in the aqueous phase), 1-4,5% of caustic alkali permeable resin (dispersed in the oil phase), 0,00015-3,0% of total dispersing agents, 20-35% of organic solvent(s) and 78,98-51,5% of water or comprise an oil emulsion to which has been added an aqueous vat dye paste containing a water soluble dispersing agent and an alkyd resin made up of 20-35% of a hydrocarbon solvent having a Kauri-butanol value of from 40-95, 58-78% of water, 1,2-4,2% of a caustic alkali-permeable alkyd resin, 0,00015-3,0% of an oil soluble dispersing agent, the oil emulsion prior to the addition of the vat dye paste having a viscosity of from 300-2000 centipoises at 75 DEG F. \sB5 DEG F.  Specification 734,632 is referred to.