baber/WOPTO huggingface dataset:
Patent GB-327524-A (GB)
Title: A method of improving the efficiency of antennae or aerial systems used for the purposes of wireless telegraphy, telephony, picture transmission, television and the like
IPC: H01Q9/40
Filed: 1929-02-26
Abstract: 327,524. Miles, C. Feb. 26, 1929. Condensers. - A multiplate condenser of the form shown is attached to the upper end of a wireless aerial. The plates D are connected to the aerial at F, and are separated from the plates C by paraffin wax, celluloid, or other dielectric of high specific inductive capacity.
Patent GB-959064-A (GB)
Title: Improvements in and relating to joint seals
Inventor: HAYLETT ROBERT
IPC: E04D3/38
Filed: 1962-02-19
Abstract: 959,064. Joint seals for heat insulation panels or tubes. DARCHEM ENGINEERING Ltd. Feb. 12, 1963 [Feb. 19, 1962], No. 6259/62. Headings F2G, F2P and F2X. [Also in Division E1] Relates to joint seals between heat insulation panels and between the flanged ends of tubes. In an embodiment heat insulation panels 1, 2, Fig. 2, are formed with channels 3, 4 and the channel 4 has an impervious metallic foil 5, e.g. titanium, welded to opposite edges 6, 7 to form seals between the foil and sheet 2. The channel 3 is nested in the channel 4 and secured by nuts and bolts so as to bear tightly against the foil 5. In a further embodiment, tubes 9, 10, Fig. 3, are formed with flanges 12, 11 formed with annular channels 16, 14 secured together in the same manner as described above.
Patent GB-108461-A (GB)
Title: Improvements in Sparking Plugs.
Inventor: PONSOT THEOPHILE ELPHEGE
IPC: H01T13/16
Filed: 1917-05-03
Abstract: 108,461. Ponsot, T. E. June 26, 1916, [Convention date]. Sparking-plugs. - The insulator c which may be of mica washers, or be moulded from a composition containing mica, is of conical shape. The casing a and insulating cap c are formed with openings i, j for cooling.
Patent GB-742729-A (GB)
Title: Improvements in or relating to internal combustion engines
Inventor: SPRATT DAVID HARRY
IPC: F02D1/00
Filed: 1953-03-06
Abstract: 742,729. Speed governors. PERKINS, Ltd., F. Feb. 26. 1954 [March 6, 1953], No. 6311/53. Class 57 An internal combustion engine of the kind in which speed control is effected by a spring-loaded pressure sensitive element 3 which is adapted to vary its position according to the pressure in the induction system 6 and which is adapted to be acted upon by a damping spring 8 when said clement is operating within the range of idling movement has means to automatically control or vary the loading of the damping spring 8 according to the pressure conditions prevailing in the induction system. This means consists of a latch 15 which controls the position of a slidable spring housing 9 and is in turn controlled by an auxiliary spring-loaded diaphragm 12. When the engine is idling with the throttle 7 almost closed, a high depression is induced in the governor pipe 5 and, by way of a passage 21, on the lower side of the diaphragm 12 while the upper side of the latter is . subjected, by way of a pipe 22, to a pressure slightly less than atmospheric. Under these conditions, the diaphragm 12 and the latch 15 move downwards to compress the spring 8. When the throttle is opened, the pressures on the opposite sides of the diaphragm 12 approach balance and a spring 23 returns - the diaphragm and the latch to the positions shown to render the damping spring 8 inoperative. The latch 15 is loaded by a light spring 20 interposed between itself and an abutment A.
Patent GB-670433-A (GB)
Title: Improvements in or relating to methods of purifying crude phthalic anhydride
IPC: C07C51/573
Filed: 1949-03-09
Abstract: Phthalic anhydride is obtained from crude phthalic anhydride by heating a mixture of the crude anhydride and at least 0.0035 mol. per mol. of phthalic anhydride in the crude material of an inorganic acid oxidizing agent or sulphur trioxide or hydrogen peroxide at a temperature above 250 DEG  C., adding thereto at least 0.0001 mol. per mol. of phthalic anhydride in the crude material of a basic sodium or lithium salt of an inorganic acid or mixtures of such salts, said salts being further characterized in that they have a pH above 7.5 in pure water solution, heating the resulting mixture at a temperature above 270 DEG  C. and then separating phthalic anhydride in purified form.  The oxidizing agent may be used in an amount substantially equivalent to that required to oxidize the reducing impurities in the crude anhydride, e.g. from 0.0035 to 0.04 mol. per mol. of phthalic anhydride in the crude material.  The oxidizing agent may be nitric or sulphuric acid. The heating may be continued for a time to substantially complete the reaction between the oxidizing agent and the reducing impurities in the crude material, e.g. from 1 to 3 hours.  The oxidizing agent and the crude anhydride may be heated at a temperature above 275 DEG  C. but not substantially in excess of the boiling-point of the phthalic anhydride at atmospheric pressure and without substantial loss of phthalic anhydride vapour.  The amount of basic salt added may be at least 0.0015 mol. per mol. of phthalic anhydride in the crude material in excess of that required to react with the unreacted oxidizing agent, e.g. from 0.0015 to 0.01 mol.  The basic salt may be sodium or lithium carbonate, sodium sulphite or disodium hydrogen phosphate.  The heating with the basic salt may be carried out at a temperature above 270 DEG  C. but not substantially in excess of the boiling-point of phthalic anhydride at atmospheric pressure and without substantial loss of phthalic anhydride vapour, and may be continued until a distillate is obtained therefrom which has a satisfactory odour, a water white colour and is substantially unchanged in colour or odour on heating, e.g. for a period of 1 to 3 hours.  The phthalic anhydride may be separated from the mixture by distillation at sub-atmospheric pressure, e.g. at an absolute pressure below 400 mm. of mercury.  The crude phthalic anhydride may be obtained from the vapour phase catalytic oxidation of naphthalene, and may be given one or more antecedent distillations prior to the treatment outlined above.  A number of detailed examples are given.
Patent GB-608902-A (GB)
Title: Improvements in or relating to printing apparatus
IPC: B41F17/00
Filed: 1946-03-01
Abstract: 608,902. Printing processes. GOSS PRINTING PRESS CO., Ltd. March 1, 1946, No. 6506. Convention date, March 1, 1945. [Class 100(ii)] In printing-apparatus such as described in Specifications 602,985 and 604,012, in which ink is transferred from an inked member to the web or sheet by an electric field of force, the field of force is set up by widely spaced electrode members. In one form, Fig. 1, a source 20 of high positive potential which may be of the order of 150 to 200 thousand volts is connected to an electrode 19 formed with a knife edge embedded in a rigid glass or other dielectric member 21 the upper portion of which encloses all but the lower edge of the electrode 19, and which is formed with depending spaced portions 21a, 21b. The web 14 passes beneath spaced dielectric members 16, 17, and the distance apart of the printing-cylinder 10 which forms one electrode and the electrode 19 is from 6 to 8 inches. A minimum distance of two inches is desirable, and also a minimum voltage drop of 50,000 volts. The web is distanced from the member 10 less than one-tenth of the distance between the electrodes. In Fig. 3, the electrode 39 is enclosed in a dielectric member 31 with parts 31a, 31b which combine the functions of the parts 21a, 21b, and 16, 17, Fig. 1. In a modification the whole apparatus including the feed and wind-up rolls, and a drying-apparatus is exhausted by means of an electrically are enclosed in a chamber from which air driven suction device, and in Fig. 5 the printing members are enclosed in a similar chamber 76, but the web 64 is fed in by rubber rollers 81 and delivered by rubber rollers 82 driven at a slightly faster speed to maintain the web taut, the rollers 81, 82, being mounted in a housing having arcuate surfaces adapted to contact the surfaces of the rollers throughout the majority of their peripheral lengths so as to prevent passage of air into the chamber 76. In a further modification, Fig. 8, the web 94 is led below gap-forming members 96, 97, and below the member 96 a plate 120 is arranged which is coated with radioactive material 120a, which ionizes the air in the space between the electrodes and assists the passage of the electric current, and increases the glow effect. U.S.A. Specifications 1,820,194, and 2,224,391, also are referred to.
Patent GB-100723-A (GB)
Title: Improvements in or relating to Concrete and like Walls Cast or Moulded in situ.
Inventor: CALWAY WILLIAM
IPC: E04B2/84
Filed: 1915-05-22
Abstract: 100,723. Calway, W. May 22, 1915. Walls.-Slab walls in which the slabs are cast in situ are formed with tongue- and-groove or rabbeted joints which are left open to allow for expansion and contraction. The slab portions 1, Fig. 1, are cast in situ by shuttering, and the intervening space is enclosed by shuttering 2, 4 to form a pier, Temporary sheet-iron or other strips 5 are placed in the mould, but are removed when the concrete has set. Figs. 2 and 4 show similar joints for slabs in single and double walls. The moulds described in Specifications 3858/09, 9884/09, 18384/11, and 7707/15, [all in Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], may be used.
Patent GB-878232-A (GB)
Title: Improvements in or relating to tubulous vapour generators and to steam generating systems incorporating water cooled nuclear reactors
Inventor: TAYLOR ANTHONY JAMES
IPC: F22B37/22
Filed: 1959-02-25
Abstract: 878,232. Vertical steam boilers; steam separators. BABCOCK & WILCOX Ltd. Feb. 11, 1960 [Feb. 25, 1959], No. 6538/59. Classes 123(2) and 123(3) A steam generator especially suitable for use in marine power plants incorporating water-cooled nuclear reactors includes an upright cylindrical pressure vessel 1 containing in its lower part a bank 3 of upright tubes the end portions 3A, 3B of which are bent at right angles and connected to tube plates 5, 7 arranged respectively at the inner ends of inlet and outlet chambers 9, 11. In operation the heated water from the reactor entering the chamber 9 flows upwardly through the tubes and discharges through the chamber 11. The tube bank 3 is enclosed by a sheet metal jacket 13 around which is an annular space 15 through which water from the upper part of the drum together with feedwater introduced at 75 flows downwardly to a space 17 wherein it turns for upward flow over the tube bank. The upper end of the jacked 13 is connected by a sheet metal casing 121A to casing parts 121B, 121C mounted coaxially within the pressure vessel and forming a water and steam receiving space 123 in the upper portion thereof. The casing part 121C is closed at its upper end by a wall 122. Two tiers of centrifugal separators are arranged to receive the steam-water mixture from the space 123, each of the cylindrical casing parts 121B, 121C having peripherally spaced outlet ports 129 from which ducts lead into respective separators. The separators 151 of the lower tier are arranged to discharge water below the normal water level in the pressure vessel. The separators 131 of the upper tier discharge water downwardly into a trough 137 which completely encircles the casing part 121C, two drain tubes 143 acting as weirs to establish a water level in the trough above the bottoms of the separators 131. This arrangement of separators is also described and is claimed in Specification 878,231. Separated steam flows upwardly from the separators through corrugated plate scrubbers 153, 157 to an outlet pipe 159. In a modification the tube bank is formed of nested tubes of inverted U-shape, the upper chamber 11 being dispensed with whilst the lower chamber 9 is divided into an inlet and an outlet chamber receiving the ends of the U-tubes.
Patent GB-538533-A (GB)
Title: Improvements in or relating to artificially-cooled high-pressure mercury-vapour discharge tubes
IPC: H01J61/52
Filed: 1940-04-11
Abstract: 538,533. Metal-vapour apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 11, 1940, No. 6569. Convention date, April 14, 1939. Addition to 484,143. [Class 39 (i)] In artificially cooled high-pressure metal vapour discharge tubes as described in the parent Specification, the anode 4 is formed as a hollow body through which a cooling medium is passed to adapt the tube for heavy currents without unduly enlarging the cross-section of the anode, which may be less than 10 times that of the cathode. In the form shown, the cathode 2 is of tungsten with a diameter 1.5 m.m. and may be coated with activating oxides. The anode is a tungsten tube 4 m.m. in diameter with a wall thickness of .8 m.m., and closed at the inner end with a wall 1.5 m.m. thick. The distance between the electrodes is 20 m.m. Cooling medium is led to the interior of the anode by a tube 8 and passes away by apertures 11 in a tubular sleeve 10 connecting the open end of the anode with an enlarged part of the tube 8. The envelope has an internal and external diameter of 6 and 9 m.m. respectively, and is enclosed in the cooling jacket 12 with inlet 17 and outlet 16 for the cooling medium. The electrodes project a distance about 1 m.m. from a surrounding quantity of mercury, which is regulable in manufacture by adjusting the length of the side tube 7.
Patent GB-884334-A (GB)
Title: Appliance for facilitating the papering of ceilings
IPC: B44C7/06
Filed: 1959-02-26
Abstract: 884,334. Papering appliances. ASHLEY, H. May 13, 1959 [Feb. 26, 1959], No. 6708/59. Class 20(2) An appliance for supporting paper during papering comprises a platform 13 mounted by clamps 23 on an X-shaped support 18 which is clamped to the upper tube 7 of a telescopic upright 1, 2, 7. The upper tube 7 is urged into engagement with the ceiling by a compression spring 6 within the tube 2 and the lower member 1 is adjustably secured to the tube 2 by a clamp 3. A T-shaped guide 15, 16 is secured to the platform support by a clamp 21. A rubber padded bar 8 on a shoe 10 is pivoted to the tube 7.
Patent GB-547615-A (GB)
Title: Improvements relating to systems for the supply of carburetted air
IPC: F23K3/00
Filed: 1941-05-27
Abstract: 547,615. Pneumatic conveyers. HERBERT, Ltd., A., and JACKSON, R. May 27,1941, No. 6769. [Class 78 (i)] In " ring mains for supplying carburetted air, e.g. air-borne pulverized coal, to furnaces &c. a main section is provided which enables two individual consuming points located near one another to be supplied without interference by eddy currents. To this end the portion of the main 11 where the conduit entrances 13 are disposed is furnished with a longitudinal partition 16, and the entrances are arranged in staggered relationship one on each side of the partition. The conduit entrances are each. closable by a butterfly valve operated through worm gearing by a hand-wheel 23, and are further fitted with the usual scoop rotatable by a hand-wheel 34 through pinion 31 and toothed sector 29. A horizontal baffle plate 36 may be provided, and the section 11, partition 16 and plate 36 may form a single double-T casting. A Venturi entrance 35, slightly flattened at the bottom, is formed in the section. Specification 547,614 is referred to.
Patent GB-365852-A (GB)
Title: Improvements in or relating to tables, stands, shelves, desks and the like
IPC: A47B13/12
Filed: 1931-03-05
Abstract: 365,852. Attaching shelves &c. to supports. BUTTERFIELDS, Ltd. and BUTTERFIELD, A., Levis Motor Works, Station Road, Stechford, Birmingham. March 5, 1931, No. 6880. [Classes 52 (ii) and 52 (v).] Table tops, desk tops, and shelves or the like are attached to supporting devices by means of suction rubbers or like devices. The Figure shows the upper end of a table leg' with a plug 13 and a flange 12 over which is slipped a concave suction rubber 6 ; a glass &c. table top 14 is pressed down upon the cup-like top of the suction rubber until the air is expressed and the table top is secured. In modifications, the top edge of the table leg, or of a cup screwed to the plug 13, is pressed over shoulders on the rubber 9 ; the rubbers 6 are attached to parts of the underframing of a table to permit the addition of a second or lower top ; they are attached to wall bracket arms to support shelves.
Patent GB-691570-A (GB)
Title: Improvements relating to radar testing equipment
Inventor: CROWLEY-MILLING MICHAEL CROWLE
IPC: G01S7/40
Filed: 1951-03-22
Abstract: 691,570. Waveguides. METROPOLITANVICKERS ELECTRICAL CO., Ltd. March 21, 1952 [March 22, 1951], No. 6905/51. Class 40 (viii). [Also in Group XL (c)] A radar test device (see Group XL (c)) ineludes a cirumferentially grooved or dielectric coated surface wave transmission line 3 with a flared wave launching and receiving device 6 at one end and a reflector plate 7 at the other.
Patent GB-1496232-A (GB)
Title: Preparation of 2,4-difluorobiphenyl
IPC: C07C67/00
Filed: 1975-07-16
Abstract: 1496232 2,4-Difluorobiphenyl MERCK & CO Inc 16 July 1975 [22 July 1974 16 April 1975 1 May 1975] 06938/77 Divided out of 1496231 Heading C2C 2,4 - Difluorobiphenyl is prepared as in reaction of where X<SP>(-)</SP> is the anion of a mineral acid or a strong organic acid in the presence of a finely divided solid copper powder or copper salt and optionally in the presence of a strong organic acid for 1 to 20 hours at a temperature in the range 5 C. to reflux temperature. 2,4, - Difluorobenzenediazonium fluorborate was prepared by adding a nitrite to 2,4-difluoroanaline and fluoboric acid.
Patent GB-1496086-A (GB)
Title: Vibratory atomizer
IPC: F23D11/34
Filed: 1975-02-19
Abstract: 1496086 Burners PLESSEY CO Ltd 30 Jan 1976 [19 Feb 1975] 6949/75 Heading F4T [Also in Divisions F1 and F2] An ultrasonically vibrated liquid atomizer (e.g. a fuel injector) comprises a nozzle portion 4, a body portion 6, 8 containing a vibrator (piezoelectric element 8) and a cover 10 fitting over the body portion 6, 8 wherein resilient means 34 mounts the body portion 6, 8 within the cover 10 and is located by a locator 32. As shown in Fig. 1, the locator 32 is a flange and the resilient means a rubber 0-ring, which when the atomizer is a fuel injector in an I.C. engine seals the connection between the cover 10 and an engine manifold 18. In Fig. 4, the locator is a groove 54 in which a resilient rubber 0-ring seats. In an alternative (Fig. 3, not shown) the 0-ring does not seal between the cover and the engine manifold. The atomizer may be used as a fuel injector for central heating burners or as a chemical or paint sprayer.
Patent GB-455957-A (GB)
Title: Gravelling device for spraying gravel in front of the wheels of an automobile
IPC: B60B39/04
Filed: 1936-03-09
Abstract: 455,957. Vehicle sanding and like apparatus. BERNER, A. E. G., 38, Nyborggade, Copenhagen, and FELDMAN, E., 9, Ole Brunnsvej, Charlottenlund, near Copenhagen. March 9, 1936, No. 6962. [Class 103 (iii)] Gravel is forced through a valve-controlled outlet in a container on a vehicle and deposited in front of a road-wheel by means of a piston which acts constantly on the gravel e.g. under the action of a spring or pneumatic device, vacuum means, or a weight. The duplex metal container 1, Fig. 1, extends transversely across the vehicle and has outlet pipes 2 one at each end, controlled by downwardly-opening valves 3, and contains pistons 42 which are slidable on guide-rods 45 and spring-pressed against the gravel-holding portions of the container, a manually-rotatable wire-drum being adapted to return the pistons to the inoperative position. The rods 45 are protected by flexible tubing 48. Each valve 3 is connected by links 4, 5 to a shaft 6 which may be controlled by a system of rods or cords or a pneumatic or hydraulic transmission device or by the device shown in Fig. 4 comprising slides 64, 55 adapted, when a notched pedal 60 is depressed, to be locked together by a spring- pressed pin 57 so that on subsequent movement of the brake pedal 53 the slides move together and operate the shaft 6 through linkage. Alternatively, as shown in Fig. 5, the shaft 6 may be controlled from the motor by means comprising a cylinder 68 fixed to the container, the piston 69 being connected by a rod 7 to one end of a lever 72 the other end of which is spring-connected to the cylinder 68. Pipes 73, 75 connect the cylinder 68 and the suction side of the motor respectively to the casing of a slide-valve 74 controlled by the brake pedal 77 so that, on depression of the pedal, the pipes 73, 75 are placed in communication and the valves 3 opened. A valve 76 provides an overriding control. In another contruction embodying a single container, the valve 3 and links 4, 5 are enclosed in a chamber separated from that containing the gravel. Fig. 7 shows a construction in which the motor vacuum is utilized to control the outlet valve 89 of a single container 80 and to exert a constant force on the ejecting piston 81. The valve 89 and piston 81 are connected respectively by rods 90, 84 to a spring-pressed piston 91 and to an auxiliary piston 83 in chambers 82, 92 which communicate through a pipe 87 and through pipes 93, 86 leading into a common pipe 94, with a slide valve casing by means of which, in order to release the gravel, the pipes 93, 86 are connected to the suction side of the motor and the pipe 87 to atmosphere, and vice-versa when the container is to be refilled.
Patent GB-1116510-A (GB)
Title: Improvements in or relating to piezoelectric ceramic compositions
IPC: C04B35/51
Filed: 1966-02-17
Abstract: <PICT:1116510/C1/1> A piezo-electric ceramic has a composition which lies within the area bounded by ABCDE in Fig. 2, wherein ABCDE have the following formulae <FORM:1116510/C1/1>
Patent GB-1505458-A (GB)
Title: Catalyst precursor preparation
IPC: C07C51/215
Filed: 1976-02-23
Abstract: 1505458 Oxidation catalysts MONSANTO CO 23 Feb 1976 [24 Feb 1975] 06997/76 Heading B1E [Also in Division C2] Maleic anhydride is made by the oxidation of a C 4-10  hydrocarbon containing at least 4C in a chain or ring with an O 2 -containing gas in the presence of a catalyst. Catalysts comprising vanadium, phosphorus and oxygen are prepared by heating a dispersion, in a liquid medium containing an anionic, nonionic, zwitterionic or ampholytic surfactant, of a catalyst precursor having a P:V atomic ratio of 0.9 to 2:1, at least 50 percent of the vanadium in the precursor being tetravalent, and calcining the product.
Patent GB-579467-A (GB)
Title: Improvements in magnetic core structures
IPC: H01F27/245
Filed: 1944-04-17
Abstract: 579,467. Transformers ; inductances. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). April 17, 1944, No. 7040. [Class 38 (ii)] A magnetic core for induction apparatus such as transformers and reactors comprises layers of laminations formed lengthwise from strip material having the most favourable magnetic direction lengthwise of the strip adjacent portions of each layer having butt joints which are for most of their length parallel to but slightly displaced from the diagonal lines running from the inside corners to the outside corners of the finished core and adjacent joints of contiguous layers being on opposite sides of the adjacent diagonal. To produce the above displacement, the inside edges of each yoke portion such as 13 or 14 proceed slightly beyond the corners of the core " window " and in the contiguous layer the inside edges of each portion such as 31, 32 proceed slightly beyond the corners of the " window." All the portions of the lamination may be punched from one strip of material, Fig. 4 (not shown), only one die being required if this is reversed for alternate cuts. Specifications 550,191 and 554,000 are referred to.