baber/WOPTO huggingface dataset:
Patent GB-1395797-A (GB)
Title: Apparatus to measure radiant heat
IPC: G01J5/20
Filed: 1972-06-22
Abstract: 1395797 Measuring radiant heat E M ROYDS-JONES 13 June 1973 [22 June 1972] 29185/72 Heading G1A A detector for radiant heat comprises two adjacent surfaces which receive the radiation, one surface absorbing radiation better than the other so that the resulting temperature difference between the surfaces is a measure of the incident radiation. The surface temperatures are measured by thermistors. The differential measurement removes the effect of conducted heat, e.g. due to ambient air. In the Fig. an aluminium foil b has a blackened area and a shiny area behind which thermistors a are adhered. Zenor diode C limits the voltage applied to the thermistors to prevent the current through them producing significant heat. Amplifier d and meter V provide a reading of the temperature difference.
Patent GB-604239-A (GB)
Title: Improvements relating to thermionic valve systems
IPC: A47L11/162
Filed: 1945-11-05
Abstract: 604,239. Transponders. FERRANTI, Ltd., TAYLOR, M. K., and WILLIAMS, F. C. Nov. 5, 1945, No. 29287. [Class 40 (v)] In an arrangement of a number of oscillators operable in a predetermined order, undesired self-oscillations are prevented by applying an auxiliary biassing potential at the instant of commencement of operation of each oscillator to render the cathode more positive with respect to the grid than in the normal operating condition, the auxiliary potential then decaying to zero. The system shown is a modification of the transponder described in Specification 603,901. With the switch blade 7 in the position shown, the cathode of oscillator 211 is biassed over resistors 28<1>, 26<1>. As the blade 7 reverses, the cathode potential commences to fall as capacitor 27<1> discharges over resistor 26<1>. When blade 7 completes the H.T. supply to oscillator 21<1>, the cathode potential is raised momentarily due to capacitor 29<1> which charges rapidly thereafter to restore normal operating potential to the cathode. Specifications 585,347 and 591,802 also are referred to.
Patent GB-648042-A (GB)
Title: Improvements in electrical gas blast circuit breakers
IPC: H01H39/00
Filed: 1948-11-11
Abstract: 648,042. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., and ROXBURGH, A. Nov. 11, 1948, No. 29340. [Class 38(v)] In a gas-blast circuit-breaker in which the supply of compressed gas for arc extinction is obtained from a slow-burning explosive cartridge, the gas from the cartridge is arranged to flow through an injector nozzle arranged so that air is induced from the atmosphere into the supply of hot gas. The resulting mixture of gases is then applied to the blast head or contacts of the circuit-breaker and may also be used to cause the opening of the contacts and the opening of a series isolating switch if provided. Means may be provided for automatically replacing a used cartridge after the circuit-breaking operation has occurred. Specifications 548,103, 570,496 and 583,345 are referred to.
Patent GB-408887-A (GB)
Title: Improvements in wheel barrows
IPC: B62B1/18
Filed: 1933-10-23
Abstract: 408,887. Wheelbarrows. SCHADLER, F. A., Arbon, Switzerland. Oct. 23, 1933, No. 29348. Convention date, Oct. 25, 1932. [Class 108 (i).] In wheelbarrows of the kind in which no frame is used and in which the wheel brackets, handles and legs are directly fastened to the receptacle the wheel brackets are connected to the front wall of the receptacle along curved or broken lines whereby the front wall is divided into approximately equal portions to resist lateral bending. To the metal body a are directly secured the wheel brackets b<1>, b<2>, the legs d<1>, d<2> and the arms e<1>, e<2> in which the wooden handles f<1>, f2 are secured. The wheel brackets are connected to the front wall of the body along bent lines as shown and extend to the upper edge of the body. The legs d<1>, d<2> are tubular and the wooden handles<]1>,<j2> are secured to the arms e', e<2> by bolts &c.
Patent GB-1298494-A (GB)
Title: Phenylethanolamine derivatives
Inventor: MIDDLEMISS DAVID
IPC: A61K/
Filed: 1970-06-17
Abstract: 1298494 Phenylethanolamine derivatives ALLEN & HANBUKYS Ltd 18 May 1971 [17 June 1970] 29367/70 Heading C2C R- and S - α<SP>1</SP> - tert. - butylaminomethyl - 4- hydroxy - m - xylene - α<SP>1</SP>,α<SP>3</SP> - diol and their acid addition salts are prepared by resolving a C 1-6  alkyl 5 - (2 - benzyl - tert. - butylamino - 1- hydroxyethyl) - 2 - benzyloxybenzoate with (- ) or ( + ) di-p-toluoyltartaric acid followed by reduction of the alkoxycarbonyl group to hy. droxymethyl and removal of the benzyl groups, the product being isolated as the free base or a salt. The preparation of the methyl ester starting material is described. The above compounds are bronchodilators and may be administered in the form of pharmaceutical preparations containing them, with or without other active ingredients, in association with a carrier.
Patent GB-1046620-A (GB)
Title: Improvements in or relating to multi-colour display cathode-ray tubes
IPC: H01J29/07
Filed: 1965-07-12
Abstract: 1,046,620. Colour television tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 12, 1965 [July 15, 1964], No. 29369/65. Heading H1D. The shadow mask of a three-gun colour television display tube consists of, for example, an iron-nickel alloy and is selected to have a thermal expansion coefficient of (15-50) x 10<SP>-7</SP> per ‹ C., in contrast to that of the screen glass substrate of (90-100) x 10<SP>-7</SP> per ‹ C., in order to compensate for misalignment due to temperature differences at temperatures between 0‹ C. and 300‹ C., the mask attaining a higher temperature than the glass in operation. The composition of the iron-nickel alloy is 55% to 62% by weight of iron and at least part of the remainder, nickel.
Patent GB-650829-A (GB)
Title: Improvements relating to the sealing of preserving jars
Inventor: STEELE THEODORE
IPC: B65D51/16
Filed: 1947-11-05
Abstract: 650,829. Stoppers. STEELE & PARTNERS, Ltd. Nov. 5, 1947, No. 29467. '[Class 125(iii)]  A vacuum-closuring device of rubber or flexible plastic material comprises a flat disc 5 with a flange wall 6, which may fit either within or around a container opening 9, a radial flange 6a, which may be strengthened by a metal ring 15, and a central hole 7 sealed by a movable or detachable stopper member, e.g. a headed stopper 10, a flexible band 11, or a non-detachable stopper such as the valve shown in Fig. 4.
Patent GB-464794-A (GB)
Title: Improvements in electric cables
IPC: H01B7/22
Filed: 1935-10-25
Abstract: 464,794. Cables. WILLIAMS, A. W. Oct. 25, 1935, No. 29470. [Class 36] In a cable provided with a flexible screening or armour sheath, the outer surface of which is substantially smooth or unbroken, and consisting of two or more helically applied metal strips adjacent convolutions of which overlap, the convolutions 31, 41, 51, Fig. 3, or 10, Fig. 4, are either of the same section but oppositely disposed around the cable, or, as shown in Fig. 2, the convolutions 3, 4, 5, 6 are of different section in which case the strip or strips 6 are preferably of braided or other flexible ribbon. The strips 3, 4, 5 may be positioned on the insulation 17 by grooves 4b into which the insulation 17 is pressed and cords 4c may be provided between the strips 3, 4, 5. Alternatively, the sheath could be formed by applying the strips 3, 4, 5 in the opposite sense, i.e. with their upstanding central portions directed inwardly, over the strips 6. Fig. 5 shows a cable comprising power cores 15, and an earth conductor 16 laid around a rubber centre 18 and separated by rubber strips 19, this assembly being surrounded by an insulating sheath 17 preferably of asbestos or other fire-proof material, enclosed by a sheath 21 constructed according to the invention covered,by a rubber or asbestos sheath 23. The individual insulated cores 15, 16 may be provided with metal sheaths 15c constructed according to the present invention or as described in Specificaton 395,186.
Patent GB-428815-A (GB)
Title: Process for the manufacture of laevo-ascorbic acid (vitamin-c)
IPC: C07D307/62
Filed: 1934-10-15
Abstract: Ascorbic acid (Vitamin C) is prepared from 2-keto-laevo-gulonic acid or from its derivatives which yield a 2-keto-laevo-gulonic acid on treatment with acids, by heating in the presence of an acid and preferably between a pH of 3,4 and 0,3.  Suitable derivatives which may be used instead of the free acid are salts, esters, and methylene-ether-compounds.  The convertion takes place from 60 DEG upwards.  It is preferred to interrupt the treatment to remove the ascorbic acid soon after it is formed, since it is not stable to prolonged heating.  The heating may be carried out without any additions or after dilution with solid or liquid diluents such as sand, salt, water, alcohols, dioxan, glycol ether or glycerine ester. In examples: (1) 2-keto-laevo-gulonic acid is heated in water in an atmosphere of carbon dioxide for two hours, allowed to crystallize and filtered. (2) Diacetone-2-keto-laevo-gulonic acid is heated at 100 DEG  C. for 3 hours with 0,2 normal hydrochloric acid.  All the acetone is removed in the first half hour.  The solution is allowed to cool and seeded.  Specification 427,286 is referred to.
Patent GB-740240-A (GB)
Title: Improvements in photo-electric detector units for automatic headlamp dimming apparatus
IPC: H01J40/00
Filed: 1952-10-20
Abstract: 740,240. Photo-electric headlamp dimmer. GENERAL MOTORS CORPORATION. Oct. 20, 1952 [Nov. 10, 1951], No. 29558/54. Divided out of 740,160. Drawings to Specification. Class 40 (3). The subject-matter of the present Specification is substantially identical with that of Specification 740,160 but the claims are directed to a housing for a photo-electric headlamp dimmer spring-urged against an adjustable stop screw to permit variation of its viewing angle.
Patent GB-802690-A (GB)
Title: Improvements in and relating to methods of and apparatus for the manufacture of shaped moulded articles
Filed: 1955-10-17
Abstract: 802,690. Wedge heels. SCHOLL MANUFACTURING CO., Ltd., and LOWTH, L. C. Sept. 3, 1956 [Oct. 17, 1955], No. 29600/55. Class 17(2) [Also in Group VIII] Heel wedges, of soft pliable material (e.g. foam rubber) are cut from a coated web made by feeding a sheet 2 of backing material past the mouth of a trough 6 containing mouldable material, flowing the mouldable material 5 through the mouth of the trough on to the surface of the backing material, passing the resulting composite sheet beneath a scraper blade 9 having a shaped edge 10, so as to form a composite sheet with ridges running along it (see Group VIII). After the mouldable material has been cured, the composite sheet may be cut to form wedge heels, by passing the sheet beneath a multiple knife operated to cut a number of wedge-shaped articles from the sheet, contiguous edges of the articles being cut by one knife edge. The backing material may be, e.g. a woven cloth of natural or synthetic fibres such as nylon, a sheet of plastic material or a pile fabric.
Patent GB-473808-A (GB)
Title: Improvements in cooling mixtures
IPC: C09K5/06
Filed: 1936-10-31
Abstract: 473,808. Cooling-mixtures. STRATMANN, H., and WERNER, F. G., (trading as KUHLSOLE - WERK STRATMANN & WERNER). Oct. 31, 1936, No. 29658. [Class 29] [Also in Group XVIII] Salt solutions for use as cooling-mixtures, radiator liquids, &c. are rendered non-corrosive by the addition thereto or formation therein of emulsions of the solutions with substances such as asphalt and benzol, oils, oil and glycerine, tar and soap, the disperse phase being stabilized by substances such as naphthalene sulphonic acid, resin soaps, sodium silicate, sulphite cellulose liquor, tannin and starch, &c., which substances may also act as emulsifiers. Separate substances to act as emulsifiers and stabilizers respectively may be used. In an example in which a salt solution and tallow soap are emulsified, the latter also acts as emulsifier and stabilizer, tannin and starch being added as augmentative stabilizers. The salt solutions specified comprise calcium chloride, magnesium chloride separately or in admixture, sodium chloride and ammonium carbonate respectively. Specification 408,896, [Groitp XVIII], is referred to.
Patent GB-869004-A (GB)
Title: Improvements relating to calcium hypochlorite bleaching compositions
IPC: D06L4/23
Filed: 1957-09-20
Abstract: A calcium hypochlorite bleaching composition having an available chlorine content of not more than 30% by weight comprising particles consisisting of finely divided calcium hypochlorite in intimate admixture with a finely divided diluent salt, the particles being substantially free from fines, is prepared by forming an aqueous slurry of the solids with 15 to 25% by weight water, preforming the slurry under pressure into particles free from fines, drying and screening the particles. The slurry may be made of calcium hypochlorite or by chlorinating a mixture of calcium hydroxide, sodium hydroxide and water.  The diluent salt may be sodium or potassium chloride or sodium or potassium nitrate and the particles may be admixed in compositions with sodium tripolyphosphate. Specification 798,201 is referred to.
Patent GB-1205913-A (GB)
Title: Process for the preparation of paraldehyde
IPC: C07D323/04
Filed: 1969-06-11
Abstract: 1,205,913. Paraldehyde. MELLE-BEZONS. 11 June, 1969 [2 Aug., 1968], No. 29700/69. Heading C2C. Paraldehyde is produced by continuously passing a stream of liquid acetaldehyde upwards through a bed of a cation exchanger in acid form, e.g. a poly-styrene sulphonic resin in the " hydrogen form," contained in a reactor which is vertical or substantially vertical and has the shape of an inverted cone or frustum, the acid cation exchanger being maintained in a dispersed and fluidized state in and by the liquid acetaldehyde stream. The reaction may be carried out at a temperature in the range 25‹ to 45‹ C. and a pressure of 1 to 3 kg/cm<SP>2</SP>, preferably in the presence of 1 to 5% by weight of water. Paraldehyde is recovered by rectification from the mixture of paraldehyde and high-boiling by-products remaining after unconverted acetaldehyde, lowboiling impurities and water, if present, have been removed through distillation.
Patent GB-504753-A (GB)
Title: Improvements in or relating to gyroscopic direction indicators
Filed: 1937-11-01
Abstract: 504,753. Gyroscopic apparatus. SIEMENS APPARATE UND MASCHINEN GES. Nov. 1, 1937, No. 29825. Convention date, Oct. 31, 1936. [Class 97 (iii;] The spindle 2 supporting and driving the rotor 4 by means of a ball friction joint 3 is mounted on a support 7 which is stabilized in azimuth by control means independent of the gyroscope. As shown the support 7 follows up the indications of a magnetic compass 8. The rotor 4 is provided with an axial rod 5 coupled to a graduated card 12.
Patent GB-390554-A (GB)
Title: Improvements in and relating to metal compositions
IPC: C22C29/06
Filed: 1931-10-28
Abstract: Tantalum carbide is prepared by firing a finely-milled mixture of tantalum and carbon in a closed graphite tube in a hydrogen furnace at about 1550-1600 DEG  C.  Specifications 213,524, [Class 1 (ii), Inorganic compounds, other than &c.], 373,708, and 388,090 are referred to.ALSO:A sintered composition, suitable for a cutting tool, consists mainly of tantalum carbide and contains appreciable quantities of a metal of the iron group, and a metal of the sixth group, of Mendeljeff's table of periodic classification of the elements. Preferably about 13 per cent of an alloy containing about 63 parts of iron and 37 parts of molybdenum is used to bind the carbide. The tantalum carbide may be prepared by firing a finely milled mixture of tantalum and carbon in a closed graphite tube in a hydrogen furnace at about 1550-1600 DEG  C.  A mixture of the carbide and metal binder are pressed to shape, and fired at about 1400 DEG C. in a graphite tube in a hydrogen furnace.  When a tool bit made in this manner is copper-brazed to a steel shank, a flux such as borax should be used for a satisfactory jointing.  Specifications 213,524, [Class 82 (i), Metals, Extracting &c.], 373,708, and 388,090 are referred to.
Patent GB-978615-A (GB)
Title: Improvements in or relating to the production of fuel materials for nuclear reactors
Inventor: SOWDEN RONALD GEORGE
IPC: C01G43/01
Filed: 1961-08-18
Abstract: According to the Provisional Specification, uranium oxide is produced by precipitating the oxalate of uranium IV from a solution containing the corresponding metal ion and calcining the oxalate.  U3O8 is formed and is reduced to UO2 by heating in hydrogen.  The precipitate settles more rapidly and is more easily filtered than the precipitate of ammonium diuranate formed by addition of ammonia to a solution containing uranyl ions.  In Example I a solution of uranyl nitrate, nitric acid, and urea (to inhibit reoxidation) is reduced electrolytically using a platinum anode and a mercury cathode, stirring being effected by an argon sparge. Oxalic acid solution is then added to form the precipitate.  Alternatively (Example V), oxalate ions may be added to a dilute solution of uranyl ions and the solution electrolytically reduced, when the precipitate forms. Either process may be operated continuously.  The anode may be of tantalum instead of platinum. The Complete Specification is restricted to the production of a mixture of uranium and plutonium oxides.ALSO:In the production of a mixture of uranium and plutonium oxides for use as nuclear fuel (see Division G6), a solution of uranyl nitrate, plutonium (IV) nitrate, nitric acid, and urea (to inhibit reoxidation) is reduced electrolytically using a platinum or tantalum anode and a mercury cathode, stirring being effected by an argon sparge.  The solution then contains uranium (IV) and plutonium (III) ions which are precipitated as oxalates and the precipitate calcined.  Alternatively, excess oxalate ions may be added to a dilute solution of uranyl and plutonyl ions and the solution electrolytically reduced, when the precipitate forms.
Patent GB-1471288-A (GB)
Title: Connection of flexible drives to instruments
IPC: F16H/
Filed: 1974-07-05
Abstract: 1471288 Flexible shafts SOC INTERNATIONALE DE MECANIQUE INDUSTRIELLE SA 5 July 1974 [5 July 1973] 29976/74 Heading F2U The casing 3 of a flexible shaft 1 is releasably connected to an instrument S to be driven by shaft 1 by means of a sleeve 2 fixed in the casing 3 and having resilent fingers 12 at one end with teeth facing radially inwards at their free ends, axial movement of the sleeve 2 towards the instrument in assembly causing the teeth to slide up a camming surface 14 of the instrument and engage behind a flange in a groove 13 as shown, with a further sleeve 16 then being moved over the fingers 12 to prevent disengagement. During assembly the sleeve 16 is in a position away from the fingers 12, and projections at one end of it on axial engage in a groove 22 of sleeve 2, these projections moving over an abutment 23 when the sleeve 16 is moved to hold fingers 12 on the instrument S as shown. The sleeve 2 is of plastics material as is the sleeve 16. There is a bearing 6 between shaft 1 and sleeve 2. A driven shaft 11, which may carry a magnet in a speedometer or tachometer, has a square-section cavity 11a for reception of the square-section end la of shaft 1.
Patent GB-170763-A (GB)
Title: Improvements in sweat bands for hats
IPC: A42C5/02
Filed: 1920-10-23
Abstract: 170,763. Hat Manufacturers' Supply Co., Ltd., and Collyer, W. W. Oct. 23, 1920. Stitches and seams.-A single strip of tape is used to form a loop for carrying an elastic or other cord and a perforated edge for attachment to a sweat band for hats. The tape A is folded and is fed into a hemstitch sewing machine together with the leather B so that one or both edges of the tape project beyond the leather. The stitches which bind the inner side of the perforations secure the two ply of tape to the leather, forming the loop for the cord a<1>.
Patent GB-364193-A (GB)
Title: Improvements in or relating to pulverisers
IPC: B02C13/282
Filed: 1930-10-08
Abstract: 364,193. Impact pulverizers. BENNIS, A. W., Little Hulton, Bolton. Oct. 8, 1930, No. 30092. [Class 59.] In a pulverizer in which beaters rotate in chambers formed by one or more radial ribs 7, 7a extending inwardly from the casing over a portion only of the radius thereof, the ribs have projections 8 formed thereon or integral therewith which extend both axially and radially of the casing to form pockets wherein the fuel is pulverized. Beaters 3, 3a are mounted on arms 4 bolted to a sleeve 6 rotated by a shaft 2. A fan 16 is mounted on the shaft 2 and draws primary air through the pulverizer from an inlet 11, the air and pulverized coal being discharged by the fan through a tangential orifice. Secondary air may be admitted to the fan through an orifice 12. The central aperture in the ring 7 may be larger than that in the ring 7a.
Patent GB-301183-A (GB)
Title: Improvements in tools for roughening, scraping and grooving leather and like material for cementing processes
IPC: C14B1/00
Filed: 1927-11-09
Abstract: 301,183. Scott, J. H. Nov. 3, 1927. Cutting-appliances.-In a tool for roughening the surface of leather &c. a hack-saw blade e is clamped between side plates a by screws b. Blades of standard length are positioned by the screws b but short blades are suspended on pins d engaging recesses and slots in the plates a. In a modification the plates are curved and provided with a handle.
Patent GB-629838-A (GB)
Title: Improvements in or relating to insulating filling compositions
IPC: H01B3/26
Filed: 1947-11-12
Abstract: A bituminous composition for use as an insulating filler for the casings of electrical apparatus comprises at least 50 per cent of a bituminous material and the remainder of paraffin wax.  In an example, nine parts by weight of a bituminous material having a softening-point of 112-115 DEG  C. and a pouring-point of 210-220 DEG C. is mixed with one part of a paraffin wax of softening-point 40-50 DEG  C. and a pouring-point of 50-55 DEG  C. to produce a composition of softening-point 100-105 DEG  C. and a pouring-point of 180-190 DEG C.
Patent GB-280564-A (GB)
Title: Apparatus for delineating electric processes
IPC: G01R13/12
Filed: 1927-11-10
Abstract: 280,564. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Nov. 13, 1926, [Convention date]. Current and pressure meters.-The pressure in a line 11 is recorded bv Lichtenberg figures produced on a chemically variable layer 20 by means of electrodes 18, 19 touching the layer 20, and counter electrodes 21, 22 connected to earth 14. The electrodes 18, 19 are connected through reversely - arranged thermionic or other valvese 16, 17 to the junction of two condensers 12, 13 forming a potential divider, so that positive figures are produced at one of the electrodes 18, 19, and negative figures at the other. The valves may alternatively be arranged between the counter-electrodes and earth, or between the electrodes 18, 19 and earth, the counter-electrodes being connected to the high-tension side. One counter-electrode only may replace the two electrodes 21, 22. An ohmic or inductive voltage divided may be employed instead of the capacity voltage divider shown.
Patent GB-181314-A (GB)
Title: A machine for the moulding of bodies made of plastic material, and more particularly of combustible cores for friction igniters
IPC: F42B4/30
Filed: 1921-11-11
Abstract: 181,314. Grossmann, H. June 6, 1921, [Convention date]. Addition to 172,287. Rolling-machines.-To ensure exact registration of the complementary cavities 3 in the cooperating discs 1, 2 the disc 2 is loosely mounted upon its spindle 5 and is furnished with a depending lug 46 engaging between ears 45 on a plate 44 secured to the spindle, the lug being adjusted between the ears by screws 47. The disc 1 may be similarly mounted.