baber/WOPTO huggingface dataset:
Patent GB-300262-A (GB)
Title: Improvements in or relating to the regulation of pressure in spaces traversed by steam, gas or air, particularly pipe lines, steam exhaust branches, steam turbine chambers and the like
IPC: G05D16/16
Filed: 1928-10-09
Abstract: 300,262. Akt.-Ges. der Maschinen- Fabriken. Escher, Wyss, et Cie. Nov. 10, 1927, [Convention date]. Regulating or controlling. - A pressureregulating device applicable to the control of a turbine driving a blower is controlled by the pressure or the pressure and velocity of the fluid flowing through the outlet from the blower and is arranged so that the regulating movement is dependent on the rate of change of the said controlling pressure. Fig. 1 shows the invention applied to a pressure regulating valve. The controlling valve 2 is loaded by a weighted lever 12 and is actuated by a differential piston 11, subject on its larger face to conduit pressure admitted through a pipe 8 and on its smaller face to conduit pressure admitted through a constricted passage 6 and auxiliary chamber 7. A Pitot tube facing up stream may be fitted to the inlet to the passage 6, or one facing down stream to the pipe 8, or a constriction may be arranged in the main conduit 3 so that the outlet pressure rises as the velocity of flow increases. A modification, however, is described in which the valve controls the supply to a turbine driving a blower, the control conduits being connected to the outlet from the blower.
Patent GB-445563-A (GB)
Title: Fabric bags for essence-containing products such as tea and the like
IPC: B65D81/00
Filed: 1934-10-11
Abstract: 445,563. racking tea &c. in bags &c. HIRSCHHORN, L., 288, Southern Boulevard, Bronx, New York, U.S.A. Oct. 11, 1934, No. 29104. [Classes 94 (i) and 94 (ii)] A method of producing fabric bags 14 for tea &c. consists of folding a strip of for. aminous material 10 on itself at 11, sewing the contiguous longitudinally extending edges 12 together with an outwardly extending seam to provide a tube, cutting the same successively into identical unit sections, stitching the contiguous edges of the cut portions to form an outwardly extending cross seam 15, filling each section through the mouth with tea, &c., and closing each section with a metallic band 17 beneath which a string 18 with a tab 19 is secured. The stitching is preferably of the overlocked type. Specification 445,564 is referred to.
Patent GB-795098-A (GB)
Title: Telegraph apparatus employing a transistor amplifier
IPC: H04L25/22
Filed: 1956-09-25
Abstract: 795,098. Code telegraphy. STANDARD TELEPHONES & CABLES, Ltd (International Telephone & Telegraph Corporation). Sept. 25, 1956, No. 29242/56. Class 40 (3). [Also in Group XL (c)] A frequency shift telegraph receiver comprises a limiter-discriminator arrangement 12, producing double current signals which are fed to a transistor converting amplifier 13 supplying single current signals to the selecting magnet of a teleprinter 14, and a circuit 11 which biases the amplifier into the mark condition when the signal is absent. The output from the discriminator 12 is negative on marking signals causing an input transistor 41 to be cut off and parallel connected output transistors 53, 54 to be conducting so that current flows in the selecting magnet 61 of a teleprinter. Space signals are positive and these cause the input transistor 41 to conduct and therefore the output transistors 53, 54 to be cut off so that the selecting relay 61 is released. A capacitor, resistance arrangement 56, 57 improves the operation of the relay and a zenner diode 55 limits the voltage peaks when the relay current is interrupted. It is stated that the relay circuit 11 which bases the input transistor to the marking condition in the absence of an input signal could be replaced by a transistor circuit. In an alternative circuit (Fig. 2, not shown) the output transistors are replaced by a junction diode.
Patent GB-813688-A (GB)
Title: Improvements in or relating to plug valves
IPC: F16K5/22
Filed: 1955-10-13
Abstract: 813,688. Valves. HOMESTEAD VALVE MANUFACTURING CO. Oct. 13, 1955 [Oct. 26, 1954], No. 29245/55. Class 135. A lubricated, cylindrical or conical plug valve has a sealing ring 35 between annular surfaces 31, 32 on the valve body and plug respectively, the sealing ring having a wide bearing surface on one side and a narrow bearing surface on the other side. The plug is urged upwardly by a spring 10 engaging, through steel and antifriction washers 8, 7 respectively, an end cap 5 which is screwed into the valve body. Lubricant is introduced into the upper end of a bore 20 and compressed by a screw 26 which causes the lubricant to flow past a pair of check valves 23, 22 into radial passages 21 from which it flows into an annular groove 17. and longitudinal grooves 14 leading to arcuate grooves 16. Further longitudinal grooves 15 extend between the grooves 17 and the ends of the grooves 16 but do not communicate therewith except through recesses 18 in the valve body when the plug is in the closed position. The arrangement is such that the grooves 15 pass over the ports in the valve body when the valve is operated. A passage 13 communicates the space containing the spring 10 with the fluid passage so that the pressure of the controlled fluid assists in urging the plug upwardly to form a seal at the ring 35. A restricted passage 27 enables lubricant to pass into the annular chamber formed between the annular surfaces 31, 32. The washer 7 is made of a polyfluoroethylene and the ring 35 may be made of a similar material compressed with a leached glass fibre or a nitrated glass fibre. The valve body and plug may be made of aluminium, steel, brass, bronze or metal known under the Registered Trade Mark " Monel.'' The sealing ring 35 may be arranged with its narrower bearing surface uppermost whereby any excess lubricant supplied to the valve causes a pressure to be set up in the chamber 28 to depress the plug and the ring 35 whereby lubricant may escape along the valve stem to the exterior of the casing. Alternatively, the ring 35 may be arranged with its wider surface uppermost in which case it is not depressed with the plug by pressure in the chamber 28 and thereby enables lubricant to be stored under pressure in the chamber 28, although when the plug is depressed to its lowest extent lubricant is allowed to escape either through a passage 50, Fig. 9, or past a conical part of the valve stem.
Patent GB-787467-A (GB)
Title: Improvements in and relating to esters
Inventor: CRITCHLEY STUART WALTER
Filed: 1954-10-12
Abstract: The invention comprises the dibutyl esters of brassylic acid, e.g. di-n-butyl, di-iso-butyl and di-sec-butyl.  An example is given of the preparation of the di-n-butyl ester from n-butanol, brassylic acid, sulphuric acid and benzene as entrainer.ALSO:Dibutyl brassylates, particularly the n-butyl, isobutyl and sec.-butyl esters, are used as lubricants alone or with other diesters such as di-2-ethylhexyl sebacate, with polymers or with hydrocarbon lubricants.  Preferably there is added 0.3-2 per cent of an antioxidant such as a ring-substituted alkylphenol, a formaldehyde condensation product of p-octylphenol, a thiophosphoric ester salt, or phenthiazine.  The esters may also be used in greases together with thickeners such as metallic soaps (e.g. lithium stearate) and antioxidants.ALSO:Dibutyl brassylates, particularly the n-butyl, isobutyl and sec.-butyl esters, are used as plasticizers for thermoplastic materials such as polyvinyl chloride, the copolymer of vinyl chloride and vinyl acetate, and cellulose esters such as the nitrate.  An example is given of a composition of polyvinyl chloride, di-n-butyl brassylate, dioctyl phthalate and basic lead carbonate.
Patent GB-481759-A (GB)
Title: Improvements in or relating to surface hardening of hollow articles
IPC: H05B6/10
Filed: 1936-10-29
Abstract: 481,759. Electric heating. DENNEEN, F. S., and DUNN, W. C. Oct. 29, 1936, No. 29387. Convention date, Dec. 14, 1935. [Class 39 (iii)] The interior surface of a hollow article 175 is heated by an annular inductor 177 arranged therein and provided with a hollow magnetic core 188 with end parts 189, 190 providing a flux path from the interior of the inductor to the article. The inductor is perforated and hollow and is connected at 186 to a quenching fluid supply. After delivery to the heated surface the quenching fluid passes through passages 193 in the core to the interior thereof. The core and end parts are made of wedge-shaped laminations and may be supplied with a cooling medium during the heating of the article.
Patent GB-778750-A (GB)
Title: Improvements in and relating to fluoro-olefines and their preparation
IPC: C07C21/19
Filed: 1955-10-14
Abstract: The invention comprises 1,1-difluoroallene and a process of preparing a difluoro-olefine which comprises pyrolysing, within the temperature range 600-100 DEG  C., a tetrafluorocyclobutane containing from 4 to 17 carbon atoms and having the formula: <FORM:0778750/IV(b)/1> wherein R and R1 represent hydrogen or monovalent hydrocarbon radicals containing up to 8 carbon atoms and free from non-aromatic unsaturation or, when taken together, a divalent hydrocarbon radical whose two free valencies stem from the same carbon atom.  The preferred temperature range for the reaction is 750-900 DEG  C. Examples describe the production of b ,b  - difluorostyrene (with some 1,2- and 2,3 - difluoronaphthalene), vinylidene fluoride and 1,1-difluoropropylene (with some tetrafluoroethylene), 1,1 - difluoroisobutylene, 2 - methyl - 3 - chloro - 3,3 - difluoro - propene - 1, 1,1 - difluoroallene, 1,2,3 - tribromo - 3,3 - difluoro - 1 - propene and 1,1 - difluoro-octene - 1.  b ,b  - Difluorostyrene can be reacted with potassium cyanide to form b -cyano-b -fluorostyrene. 1,1-Difluoroallene can be reacted with acrylonitrile to form 1-methylene-3-cyano-4,4-difluorocyclobutene.  The 1,1-difluoro-olefines may be hydrogenated to form the corresponding saturated difluoro compounds.
Patent GB-502916-A (GB)
Title: Improvements in multi-tubular steam or hot water boilers
IPC: F22B33/08
Filed: 1937-10-28
Abstract: 502,916. Return-tube steam boilers. DANKS (NETHERTON) Ltd., H. & T., and REID, R. G. Oct. 28, 1937, No. 29530. [Class 123 (ii)] A horizontal multitubular steam or hot water boiler A has a channel 6 under the shell extending between a chamber 1 at the back of the brickwork setting B and the boiler front, the furnace gases issuing from the flue D being delivered to front smoke boxes 7 and thence through smoke tubes 8 to chimney flues 9. Preferably, the tubes 8 are arranged as described in Specification 429,383, not higher than the crown of the furnace flue.
Patent GB-1454197-A (GB)
Title: Bearings
IPC: B21D53/10
Filed: 1974-07-03
Abstract: 1454197 Bearings HOESCH WERKE AG 3 July 1974 [17 July 1973] 29561/74 Heading F2A A method of making a wire ring for a rolling bearing race, the ring having at least one surface acting as a raceway which has at every point on its periphery a constant supporting angle, comprises hot-rolling a supply of wire 10 by heating the wire and passing it through shaping rollers 14, 15 to form the desired cross-section, winding the hot-rolled wire around a round object 18 located in a hardening bath 21 to form a plurality of hardened wire turns having the desired diameter and bearing angle, the number of turns corresponding to a desired number of wire rings, and severing the turns to form the wire rings. The wire is heated by electric current supplied through rollers 11, 14 and 16, and by an inductive heating means 13.
Patent GB-686208-A (GB)
Title: Improvements in or relating to display stands
IPC: A47F7/04
Filed: 1950-12-04
Abstract: 686,208. Stands. KENNINGHALL WELDING CO., Ltd., and PARR, H. E. T. Oct. 10, 1951 [Dec. 4, 1950], No. 29630/50. Class 52(iii) [Also in Group XVIII] A stand for supporting a tyre for display comprises a base in which the lower part of the tyre rests and a pillar 4 carrying a vertically adjustable bracket which engages the upper part of the tyre at one or more points. Preferably the base is formed by two spaced limbs 1 of angleiron and the bracket is Y- or T-shaped and provided with pivoted lugs 10 to engage the tyre rim. Screw and slot adjusting means 7, 6 may be provided or the bracket may be urged upwardly .by a spring.
Patent GB-1019482-A (GB)
Title: Process for the evaporation of solutions of synthetic resins in organic solvents
IPC: C08C19/12
Filed: 1963-07-26
Abstract: Organic solvent is evaporated from a solution of a synthetic resin in the solvent by mixing the solution with water and an amount of steam which is at least sufficient to evaporate all the solvent, and introducing the mixture solution, water and steam into a pipe at such a rate that the flow conditions, at the inlet end of the pipe, correspond to a Reynolds number of at least 5000, preferably about 20,000, and the average residence time of the mixture in the pipe amounts to not less than 5 x 10-2 seconds.  A slurry in water of small solid particles or fibres of resin is obtained, which do not adhere to the walls of the tube. A device can be connected to the outlet end of the pipe in order to separate the solvent vapours, resin particles and water.  In an example, a mixture of water and a solution bisphenol polycarbonate in methylene chloride is sprayed from a nozzle into a pipe 23 cm. long, the diameter of the first 5 cm. of the pipe being 7,2 mm., and the remainder of the pipe having a diameter of 10,5 mm.  The tip of the nozzle is 0,7 cm. away from the mouth of the pipe; and steam is passed into the intermediate space between the nozzle and the pipe-mouth.  A mixture of sand-like polycarbonate, water, and methylene chloride vapour discharges from the end of the pipe.  The Reynolds number in the pipe section of 7,2 mm. diameter is 21,000; and the residence-time of the mixture in the pipe is 9,3 x 10-2 seconds.  Other examples relate to the separation of chlorinated rubber from its solution in carbon tetrachloride, and the separation of cellulose acetate from its solution in acetic acid and methylene chloride.
Patent GB-446328-A (GB)
Title: Improvements in and relating to lamps suitable for street lighting
IPC: F21V33/00
Filed: 1934-10-27
Abstract: 446,328. Street lamps. SUGG & CO., Ltd., W., Ranelagh Works, Chapter Street, Westminster, SUGG, P. H., and SUGG, P. C., Southview, Pollards Hill East, Norbury, London, and McGIBBON, A. R., 83, Wellwood Road, Goodmayes, Essex. Oct. 27, 1934, No. 29762/35. Divided out of 446,290. [Classes 75 (ii) and 75 (iv)] In a street lamp, pairs of divergent reflectors 102, 103 are arranged on opposite sides of a linearly extending light source, to reflect light in both directions along the carriageway, one reflector 102 of each pair being above and the other below the plane of the light source. The light source may comprise a series of burners arranged in a straight line, or in staggered formation. Each pair of reflectors 102, 103 forms in section part of a parabola with its focus on the axis of the light source. Each reflector is carried by a channel framework 108, supported by arms 105, 106 pivoted at 107. The arms 105, 106 are interconnected by links 111, so that the two reflectors are adjustable together by a screw 104. Between each pair of reflectors is an intermediate reflector 114, carried by flanged arms 115. Each arm 115 has a pivot stud 116 resting in a notch 117 on a bracket attached to an arm 105, and is adjusted at the outer end by a screw 119 carried by the link 111. A diffusing glass 113 is mounted in the bottom of the casing. Specification 446,290 is referred to.
Patent GB-160891-A (GB)
Title: Improvements in and relating to ships' cabins
IPC: B63B3/68
Filed: 1919-11-29
Abstract: 160,891. Wakeham, W. G. Nov. 29, 1919. Cabins.-In cabins comprising a number of portable frames adapted to be bolted together in situ to form the walls and bulkheads, the frames are positioned with respect to the deck by means of dowels 34 entering apertures and are pressed down on the deck by means of bolts 36 secured to a beam 37 and provided with heads 38 which bear upon the top of the partition. The meeting edges of the frames are secured by through bolts, and to prevent the loss of the latter in transit they may be screwed into plates pivoted to the frame.
Patent GB-450945-A (GB)
Title: Manufacture of dense, soft or hard rubber vulcanisates
IPC: C08K9/04
Filed: 1934-10-18
Abstract: Rubber containing vulcanizing-agents and filling-materials is mixed with an absorptive filler, such as wood meal, containing a rubber swelling-agent, as described in Specification 374,085, the swelling-agent is evaporated, and the mix compressed by pressure rollers and then vulcanized while exposed to the atmosphere.
Patent GB-207964-A (GB)
Title: Improvements in or relating to detachable brackets or supports
IPC: A47B57/56
Filed: 1922-11-01
Abstract: 207,964. Bibby, F. Nov. 1, 1922. Clothes racks.-Clothesdrying rods, cords &c. are supported from a mantelshelf by means of a bracket comprising a clamp 3 formed with an integral T-shaped member 5, the cross-piece 6 of which is disposed as shown and has a number of apertures 7 to receive the ends of the drying rods &c. A groove or ledge may be provided on the cross-piece 6 to support the end of a shelf.
Patent GB-751863-A (GB)
Title: Method of producing a protective coating and a protective coating produced according to this method
IPC: F02C7/30
Filed: 1953-10-29
Abstract: 751,863. Turbine blades; jet-propulsion nozzles. AKT.-GES. BROWN, BOVERI & CIE. Oct. 29, 1953 [Oct. 29, 1952], No. 29962/53. Class 110(3) [Also in Groups XII, XV and XXIII] A protective coating of powdered high melting metallic oxide 2 is caused to adhere to the surface 1 of a metallic part of a gas turbine by rolling, pressing or hammering. Metallic oxides of magnesium, aluminium, beryllium, thorium or zirconium can be applied either hot or cold. Further protective layers 3 to 6 .may 'be applied by the method of firing described in Specification 725, 503, the layers of enamel containing increasing amounts of ceramics.
Patent GB-355998-A (GB)
Title: Improvements in gas stove construction thereby producing greater heat and better ventilation
IPC: F24C3/00
Filed: 1930-10-07
Abstract: 355,998. Air-heating and heatradiating fittings for stoves. CLARK, T., 3, Kildare Terrace, Paddington, London. Oct. 7, 1930, No. 29973. [Class 126.] A casing D divided by a partition B into an upper and a lower chamber is placed at the back of a gas fire, the gases from which enter the lower chamber through an opening registering with the outlet nozzle C of the stove, and leave by an outlet F. The upper chamber serves for ventilation purposes, air entering it through an aperture in the top controlled by a slide A, and passing through an outlet G to the flue. In the construction shown, the partition B divides the outlet G, the lower part forming an upper outlet from the lower chamber and being controlled by a damper N which is opened to assist the draught when the fire is first lit. In a modification, the partition B is below the outlet G, which serves only for the ventilating chamber. The casing D is separated by spans H from the rear of the stove and from a back-plate I which fills the fireplace opening, air being heated in these spaces and also in the space below the casing. The spaces H are closed at their upper ends by the overhanging top O of the casing, the top being removable to allow them to be cleaned. The casing is attached to the stove by straps E having two screws M which engage over the outer flange of the stove casing. The aperture in the front of the casing which receives the outlet nozzle C of the stove is of larger size than the nozzle and is masked by a vertically adjustable plate K, thus allowing nozzles at different heights to be accommodated.
Patent GB-813649-A (GB)
Title: Improvements in or relating to electrical contact brushes
IPC: H01R39/26
Filed: 1956-10-02
Abstract: 813,649. Brushes for dynamo electric machines. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 2, 1956 [Oct. 7, 1955], No. 29977/56. Addition to 805,176. Class 35. A modification of the brush described in the parent Specification in which the lubricating layer 42 has a thicker part 44 near the working surface 45 to give additional lubrication during the initial stages of use. The thicker part may be step or arcuate-shaped. It is described how a plurality of brushes are made simultaneously. Specification 601,378 and U.S.A. Specifications 2,445,003 and 2,699,404 are referred to.
Patent GB-391485-A (GB)
Title: Improvements in electric magnetic sound reproducing devices
IPC: H04R11/00
Filed: 1931-10-29
Abstract: 391,485. Loud-speakers. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.-(United Telephone & Telegraph Works, Ltd.; 75, Dresdnerstrasse, Vienna.) Oct. 29, 1931, No. 29980. [Class 40 (iv).] Relates to electromagnetic loudspeaker motors, in which an armature vibrates substantially perpendicularly to the direction of the lines of force between two or more pairs of co-operating polepieces arranged symmetrically with respect to the ends of the body of the magnet so that the length of the magnetic path through each pair of polepieces is substantially the same. According to the invention, the arrangement is such that the direction, of the flux between both pairs of polepieces is the same. In the construction shown, each pole N or S of a horseshoe magnet 10 has two polepieces 12, 13 mounted as shown, to produce two air gaps in which two armatures 17, 18, mounted on spring strips 20, 21 and connected by a rod 19 to a diaphragm 23, are adapted to move. Coils 14, 15, to which audio-frequency currents are supplied, surround one polepiece. in each of the pairs.
Patent GB-144960-A (GB)
Title: An improved non-skid device for motor tyres
IPC: B60C27/00
Filed: 1919-12-01
Abstract: 144,960. Dunkley, J. J. R. Dec. 1, 1919. Tread bands.-In non-skid devices of the type which consist of metal sections a of substantially triangular form disposed in a groove in the tyre tread or between twin tyres, the sections are connected together by double-ended right and left hand screw bolts. The sections are preferably shaped so as to bear only on the sides of the tyres and may be made hollow or suitably grooved for lightness. Serrations or.other asperities may be formed on the tread of the sections.
Patent GB-788622-A (GB)
Title: Improvements in and relating to cinematograph cameras
IPC: G03B19/04
Filed: 1955-10-20
Abstract: 788,622. Recording elapsed time. MADER, E. P., and COMPAGNIE DES MONTRES LONGINES FRANCILLON SOC. ANON. Oct. 20, 1955, No. 29985/55. Class 106 (4). [Also in Group XX] In a kinematograph camera combined with a timing device (see Group XX), which may be used for timing sporting events, the image of a time indicating device is projected on each film frame as it is exposed and a synchronous motor drives the indicating mechanism. The synchronous motor 22 may be energized by a source 37 of alternating current stabilized by a quartz crystal which may itself be operated by direct or alternating current. The synchronous motor 22 is coupled to the indicating mechanism 25, which displays numbers on intergeared discs at windows in casing 27, by a reduction gearing 23 and by clutch 24. Clutch 24 is operated by electromagnet 30 and the indicator 25 is declutched by push-button 31. The indicator is reset by knob 33 and illuminated by lamps 28. Specification 762,633, [Group XX], is referred to.
Patent GB-985551-A (GB)
Title: A dental appliance
IPC: A63B23/03
Filed: 1960-08-31
Abstract: 985,551. Massaging teeth. L. E. DE ROUET. June 23, 1961 [Aug. 31, 1960], No. 29991/60. Heading A5R. A device for applying vibrations to the teeth comprises an approximately semi-circular portion 1 which is made of springy material, e.g. rubber, and which has on each side a flat teethgripping surface which is wider at the ends than the centre, and a stem portion 2 which extends at right-angles from the centre of the convex edge of the semi-circular portion. In use, the semi-circular portion is gripped between the teeth and the stem portion is stretched and plucked so that it vibrates, the vibrations being transmitted to the teeth.