baber/WOPTO huggingface dataset:
Patent GB-670916-A (GB)
Title: Process for the gasification of non-bituminous solid fuels
IPC: C10J1/207
Filed: 1950-03-28
Abstract: 670,916. Gas-producers. VOGOGAS SOC. ANON. March 28, 1950 [March 29, 1949], No. 7741/50. Class 55 (i). A process for gasifying non-bituminous solid fuels in a generator, comprises burning a gaseous fuel by means of oxygen in a combustion space, mixing the hot gases of combustion with steam and passing the mixture into the gasification zone of the generator, withdrawing part of the gas produced from a part of the generator where the temperature is between 1000‹ and 1400‹ C. and passing the withdrawn gas through a high-pressure steam boiler and then to the combustion space as gaseous fuel, and utilizing the high-pressure steam generated in the boiler for driving a turbine which is used to operate an oxygen-producing plant to supply oxygen for burning the gaseous fuel in the combustion space and the low-pressure steam leaving the turbine as the steam mixed with the hot gases of combustion. Part of the gas withdrawn from the generator may be passed directly to the combustion space. Specification 351,892 is referred to.
Patent GB-192311-A (GB)
Title: A mixture heating attachment for engine carburetters
IPC: F02M1/00
Filed: 1922-03-16
Abstract: 192,311. Law, C. J. March 16, 1922. Vaporizers, external.-Mixture from a carburettor is heated on its way to the engine by passing through a tubular member and over hollow bars therein, exhaust gases in controlled quantity passing around the tube and through the bars. Between the engine manifold 11, Fig. 2, and the flange 13 of the carburettor outlet pipe 12, is a casing 10 containing a tubular member 23 having hollow bars 25 formed integrally therewith. Exhaust gases under the control of a valve 19, Fig. 1, which may be connected to the carburettor throttle valve, enter the casing at 17 and, after passing over the member 23 and through the bars 25 therein, may leave by any one of the outlets 14, 15, 16. As shown in Fig. 1, the outlet 16 is in use, the ethers being closed by plugs and the member 23 is so adjusted that the bars therein are arranged angularly to the path of the exhaust gases through the casing 10. The walls of the bars are thin, the ends are tapered as at 26 to minimize resistance and a gauze screen is fitted at 27.
Patent GB-180458-A (GB)
Title: Improvements in rivet extracting devices
IPC: B25B27/22
Filed: 1921-03-12
Abstract: 180,458. Salt, G. R. March 12, 1921. Rivet-extractors.-A rivet-extractor for use more especially in forcing out the rivets of driving-chains and of the type adapted to extract a pair of rivets simultaneously in which forked means are provided for holding the chain with a pair of rivets in coaxial relationship with a pair of extracting punches, has the pair of punches geared together so as to advance at the same rate. the body of the device being formed with a toothed anvil engaging between the rollers of the chain for locating the latter accurately with respect to the punches. As shown, the device comprises a flanged or channel block d provided with a handle e, the flange c having two tapped holes, one with a right-hand thread and the other with a left-hand thread, in which holes are mounted correspondingly threaded spindles b carrying the punches a. Said spindles b are geared together by pinions f, one of which is formed with a socket l for a tommy bar m. The other flange h is formed with teeth i adapted to engage between the chain rollers so as to locate a pair of chain rivets k exactly opposite the punches.
Patent GB-263078-A (GB)
Title: An improved method and means for controlling the registration curve of electricity meters
IPC: G01R11/00
Filed: 1926-03-22
Abstract: 263,078. Sangamo Electric Co., (Assignees of Kurz, F., and Wilmeth, R. H.). Dec. 21, 1925, [Convention date]. Induction and other motor meters; current and pressure meters. - The registration curve of an energy meter is controlled by placing a saturstable magnetic shunt in spaced relation to both poles of the series magnet, so that as the magneto-motive force increases beyond the point at which the shunt becomes saturated, leakage flux from the series magnet penetrates the armature to cause the driving-torque to increase at a greater rate than the magneto-motive force. The application to an induction motor meter is shown. The poles of the series magnet are provided with inward extensions 14, 15 separated by an air-gap 16 opposite the active pole of the shunt electromagnet (not shown). Across the pole-tips 14, 15 is placed a preferably laminated block 28 of iron or other magnetic material separated from the pole-tips by L.shaped strips 29, 30 of brass or other non-magnetic material. At high loads the block 28 becomes saturated and causes the active flux in the air gap 10 to increase at a greater rate than the magneto motive force due to the line current. In order to correct the registration curve at light loads, a second air-gap 31 may be provided in the series magnet. This air gap is provided with a magnetic shunt 8<a>, 8<b> by a non-magnetic strip 36. The shunt 35 is so proportioned as to become saturated at a low load to compensate for the droop in the registration curve at this point. In a modification, the block 28 is fitted into grooves in the pole-tips, U-shaped non-magnetic strips being interposed. According to the Specification as open to inspection under Sect. 91 (3) (a), the invention is applicable also to other types of watt-hour meters, other instruments, and to the control of the voltage registration curve as well as the load registration curve. This subject-matter does not appear in the Specification as accepted.
Patent GB-491973-A (GB)
Title: Method of producing plywood, composition boards and building slabs
IPC: D21J1/08
Filed: 1937-03-18
Abstract: Skim milk or curd with or without a precipitant or hardening medium such as rennet, formalin, lime or cement, is mixed with wood, wood waste, cellulose, sawdust, wood shavings or chips, peat dust or waste paper, and subjected to heat and pressure, for the manufacture of plywood, composition boards, or building slabs, e.g. for insulation or machine foundations.  The hardening medium may be added before or after admixture with the fillers.  The mass is subjected to pressure in a mould; thin plates of wood may be placed at the top and bottom to produce plywood.
Patent GB-536401-A (GB)
Title: Improvements in the manufacture of railway and tramway rails
IPC: C21D9/04
Filed: 1939-03-11
Abstract: 536,401. Heat treating rails. SANDBERG, C. P., SANDBERG, O. F. A., and HUMFREY, J. C. W. March 11, 1939, Nos. 7942 and 23523. Drawings to Specification. [Class 72] To produce a spheroidized structure in the wearing surface of railway and tramway rails, the latter are quenched from a temperature above the critical range on heating at such a rate to a temperature below the critical range on cooling to produce a marlensitic structure and then tempered at 650‹C. or at a temperature above 650‹C. and below the critical range on heating to produce the desired result. The rails may be heated to above the critical temperature before treating it as described above and this treatment may be repeated once or more. The steel may also contain up to 1.5 per cent. of chromium, up to 3.5 of nickel or up to 0.6 of molybdenum. Specifications 324,686, [Class 72], 406,029 and 487,428, [Group XIX], are referred to.
Patent GB-962015-A (GB)
Title: Improvements in or relating to the fabrication of a pattern of a film-forming metal on a substrate
IPC: H01G2/00
Filed: 1962-03-01
Abstract: A pattern of a film-forming metal is produced on a substrate by forming a first layer of an oxide of a film-forming metal-selected from Zr, Al, Ta, Ti, Nb-on the substrate, of thickness at least 100<\>rA; depositing a second layer of film-forming metal-selected from Zr, Al, Ta, Ti, and Nb-and selectively removing fractions of said second layer by photo-engraving techniques.  The first layer of an oxide of a film-forming metal is produced by vapour depositing the metal as a film and subsequently oxidizing the film deposited.  The metal films both first and second are deposited by conventional cathodic sputtering or vacuum evaporation techniques.  The thickness of the first metal deposited is preferably about 500<\>rA but may be less provided an oxide film of at least 100<\>rA is formed.  The first film is thermally oxidized by heating in air for 1-5 hours at a temperature of 500-700  DEG C. depending on the metal in question e.g. 500  DEG C. for Ta.  The subtrate can be a ceramic block or, for example, of glass or heat-resistant materials. The method is used for producing printed circuit components such as resistors and capacitors.  Capacitors may be made by anodizing a portion of the photo-engraved second metal layer to form an oxide dielectric film and then depositing a counter electrode layer e.g. of gold over said oxide dielectric film.  Printed circuit resistors are made by coating the second layer with a photo-resist, exposing the photo-resist surface to a pattern of light by interposing a photographic film negative between a light source and the photo-resist surface, then developing the resist so that those portions upon which the light impinged are stabilized, dissolving the unexposed resist and contacting with a selective etchant e.g. contains HF or other fluorides for metals concerned, which attacks and erodes the exposed metal.  Alternative methods for obtaining the first oxide film include reactive sputtering and electrochemical anodization. The maximum thickness of the first oxide film should be 2000<\>rA but thicker films have no advantage over 100<\>rA films.  For the metals mentioned suitable etchants for photo-engraving patterns will normally contain HF or other fluorides (see Division H1). Specification 863,596 is referred to.
Patent GB-431184-A (GB)
Title: Improvements relating to floor mats
IPC: A47G27/02
Filed: 1935-03-15
Abstract: 431,184. Floor mats. INDIA TYRE & RUBBER CO., Ltd., and POMEROY, C. J., Inchinnan, Renfrewshire. March 15, 1935, No. 8025. [Class 142 (iv)] The wires 1 on which the rubberized fabric blocks &c. 1 are threaded are made of half round or triangular section and are accommodated in correspondingly-shaped securing sleeves 3, so as to present flat sides 2<a>, 3<a> adjacent the lateral edges of the outer members of the mat.
Patent GB-398847-A (GB)
Title: Improvements in boilers or water heaters
IPC: F24H1/26
Filed: 1932-03-18
Abstract: 398,847. Boiler furnaces. CLARKSON THIMBLE TUBE BOILER CO., Ltd., Australia House, Strand, London, FLAVEL & CO., Ltd., S., Leamington, Warwickshire, and FOUNTAIN, H. J., Australia House, Strand, London. March 18, 1932, No. 8061. [Class 51 (i).] In a steam or hot-water boiler comprising a base member 1 in which is mounted a grate 3 and a thimble, tube or similar boiler unit with a central unobstructed passage and carrying a fuel magazine 15 with a chute 16 projecting down into the central passage and terminating over the grate for automatic gravity feed of fuel, a fan 18 forces a draught under the grate and is controlled by a thermostat 20 in the water outlet or in the room to be heated. Cold water enters at 11 and is withdrawn hot at 13, while water from a central heating system enters at 12a and issues at 12. The boiler has thimbles 9 or loops on its interior, is circular or rectangular in cross section, and may comprise hollow castings 24 held together by hollow screw-threaded plugs 25. The fan is connected by a duct 23 with the space leading to the chute, a valve 22 in the duct being controlled by the thermostat. The lower face of the grate 3 has a toothed surface 4 engaging toothed pinions 5 rotated by handles 6. The grate supporting unit may be of volute form with an internal edge to separate clinker. Specification 313,542, [Class 123 (ii), Steam generators], is referred to.
Patent GB-471377-A (GB)
Title: Lavatory pan brush
IPC: A47L17/00
Filed: 1936-03-18
Abstract: 471,377. Brushes and squeegees. POTTER,T. March 18, 1936, No. 8095. [Class 19] A lavatory-pan brush comprises rubber discs 4 spaced by washers 5 on a stud 3 offset on a handle 1. Either the stud or the handle may be bent to give the offset effect. The discs and washers may be moulded in one piece.
Patent GB-102334-A (GB)
Title: Improvements in and relating to Fire Alarms.
Inventor: JONES BENJAMIN
IPC: G08B17/06
Filed: 1916-06-08
Abstract: 102,334. Jones, B. June 8, 1916 Alarms operated by fusible and inflammable devices. - Relates to alarms having a spring- operated bell-striker released by the destruction of a fusible or combustible retaining-member. The gearing whereby a spring (not shown) tends to operate a bell-striker, Fig. 2, is locked, by engagement of a pin z<2> with a second pin z<3> upon a spindle x carrying the striker and a pallet x<1> for operating it, so long as a weighted arm z is held up by a wax or paper loop (not shown). When the arm falls, its cam y', which is loose upon the spindle, forces outwards a cam y fast thereon and disengages the restraining-pins. Fig. 4 shows an arrangement in which a spring rotates the striker spindle T<1> directly whenever an arm T<5> thereon is released by destruction of a loop T<6>.
Patent GB-1353029-A (GB)
Title: Frames more especially for supporting aquaria and the like tanks
IPC: A01K63/00
Filed: 1971-03-30
Abstract: 1353029 Aquarium frames D A VERRINDER and V S VERRINDER 17 March 1972 [30 March 1971 4 Aug 1971] 8145/71 and 36581/71 Heading A1A [Also in Divisions B8 and F2] An aquarium frame (Fig. 5) comprises side limbs of moulded plastics material and corner jointing members having projecting flat fingers 11 secured in slots in the side limbs by the use of adhesives or welding. The exposed innermost surfaces of the assembled components are flush with one another, to facilitate the fitting of glass walls. The side limbs have no undercut surfaces so that they may be formed by moulding. They may be chamfered as at 19. The Specification also discloses (see Fig. 3) a frame having mitred side limbs held together by L-shaped coupling members 6 of dove-tailed cross-section, and a frame construction similar to that of Fig. 5 but where the fingers are of dove-tailed cross-section. This matter is not claimed.  (For Figures see next column)
Patent GB-1495366-A (GB)
Title: Thermal pack
IPC: F25D5/02
Filed: 1976-03-02
Abstract: 1495366 Chemically energized heating or cooling pack R L GOSSETT 2 March 1976 08271/76 Headings F4H and F4X A thermal pack A, for use in providing extensive and prolonged temperature variation from the ambient temperature, comprises a group of three pliable sleeve type plastics bags 2, 4, 5, two of the bags 4, 5 being of approximately the same size and the inner bag 2 being smaller, the upper seams 3 of the bags being sealed together to form the upper end of the pack, the lower end of the bag 2 having a closing seam 6 capable of pressure rupture and holding a quantity of water, the inner bag 5 holding a quantity of temperature-varying chemical means reacting with water, and the inner bag preferably containing means for identifying the type of thermal pack. The bags are all of substantially the same strength and are formed from polyethylene. The inner bag 2 has a pressure-relief perforation located in its upper seal area and the contained water has a small amount of dye, e.g. red, or blue, for identifying respectively a hot, or cold, pack. In a hot, or cold, pack the outer bag 1 contains respectively either a major quantity of urea with some ammonium chloride or, a quantity of anhydrous magnesium sulphate mixed with granular material such as sand.
Patent GB-578567-A (GB)
Title: Improvements in or relating to abrasive articles, and methods of forming an endless abrasive-coated sheet material
IPC: B24D11/06
Filed: 1944-05-02
Abstract: 578,567. Abrasive bands. MINNESOTA MINING & MANUFACTURING CO. May 2, 1944, No. 8275. Convention date, May 17, 1943. [Class 60] , An endless band or sleeve of abrasive coated material is formed from a sheet of the material by bringing the ends of the sheet into abutting relation, applying an adhesive to the backing material of the sheet on each side of the joint applying a number of wires or strands of metal &c. to the adhesive to extend across the joint and applying pressure to embed the wires in the backing, the joint thus formed being of substantially the same thickness as the other parts of the sheet. Fig. 3 shows the use of wires in the form of a wire mesh 15, which is applied to adhesive 14 on the backing 11 extending at each side of the abutting ends 13 of the abrasive sheet band 11, 12, the wire mesh being pressed to embed it in the backing 11 ; the joint may run diagonally across the band, or may have its ends serrated or formed with interlocking areas as shown in Fig. 8. In place of woven metal wire, a woven glass cloth may be used. Spirally wound abrasive cylinders, from which lengths are cut are formed by winding an abrasive strip with abutting edges overlying a jointing strip wound spirally on a mandrel, pressure then being applied to the abrasive strip to embed the jointing material in the backing.
Patent GB-499244-A (GB)
Title: Improvements in or relating to the manufacture of paper bags
IPC: B31B29/00
Filed: 1938-03-18
Abstract: 499,244. Making paper bags. AKTIEBOLAGET G. AREHNS MEKANISKA VERKSTAD. March 18, 1938, No. 8380. Convention date, March 18, 1937. [Class 94 (ii)] A method of making a cross bottom bag in which a flat tube is clamped cross-wise leaving a free end portion which is opened and crossfolded, is characterized in that a jet of air is projected into the opened end portion before cross folding takes place. Each bag tube A advanced by rolls 40, 41 ... is taken up by stops 28 on the belt 1 and fed between a guide plate 3 and a drum 2, a cam-operated finger 4 thereon moving to grip the flap B, Fig. 6. A clamping rib 18, a number of which are carried by endless steel bands 19, co-operate with a groove 17 of the drum 13 to hold the bag blank to the drum, a cam operated hook 14 thereon moving to hold the inner edge of the blank against the drum. The bag blank bottom is now partially opened, Fig. 2, by the movement of the drums 2, 13 and a cam operated valve 40 is opened to allow jets of air from two diverging nozzles 24 to be projected therein. The finger 4 now releases the flap B and a plate 23 enters and completely opens the bag end, the folds being ironed down by ironing bars 27. The bottom, now in the form of Fig. 6, is completed by any suitable means.
Patent GB-643810-A (GB)
Title: Improvements in and relating to electrical on-load switching apparatus
IPC: H01H9/00
Filed: 1948-03-22
Abstract: 643,810. Transformers and inductances. GENERAL ELECTRIC CO., Ltd. March 22, 1948, No. 8448. Convention date, March 26, 1947. [Class 38 (ii)] [Also in Group XXXVII] In switching apparatus, particularly transformer on-load tap-changing gear, incorporating selector switches connected to a common lead incorporating a diverter switch, the latter is opened simultaneously with the opening of any selector switch. Tappings L<SP>1</SP> ... L<SP>4</SP> on. a transformer T, Fig. 1., are connected through selector switches S1/1 ... S1/4 to a bus-bar B<SP>1</SP> and through selector switches S2/1 ... S2/4 to a second bus-bar B<SP>2</SP>. Bus-bars B<SP>1</SP>, B<SP>2</SP> are connected in parallel across a current-limiting device I through diverter switches D\ D2. Switches D<SP>1</SP>, S1/1 ... are mounted on one side of the apparatus, Fig. 2, and are actuated by rockers engaged by cams Sd, S<SP>1</SP> ... on a camshaft C<SP>1</SP>. Switches D<SP>2</SP>, S2/1 ... are similarly mounted on the other side of the apparatus and actuated by cams on a cam-shaft c<SP>2</SP>. The operating portions of the cams are so arranged that when the tapping is to be changed (assuming the transformer is being tapped through L<SP>1</SP> as in Fig. 1<SP>1</SP>), cam-shaft c<SP>1</SP> is rotated to open D' and S1/1 simultaneously and then close D<SP>1</SP> and S1/2 simultaneously, Next, cam-shaft C<SP>2</SP> is rotated and opens D<SP>2</SP> and S2/1 simultaneously and then closes D' and S2/2 simultaneously, which results in the transformer being tapped through L<SP>2</SP>. Further changes may be made by continuing rotation of the cam-shafts alternately. The diverter switch contacts may be made of highly wear-resistant material and/or may be formed as multiple break diverters.
Patent GB-617904-A (GB)
Title: Improvements in closures for drums, cans, and like receptacles
IPC: B65D39/08
Filed: 1946-03-19
Abstract: 617,904. Closures for drums &c. RISK, T. H. March 19, 1946, No. 8504. Convention date, March 19, 1945. [Classes 21 and 125 (iii)] A closure for a drum can or like receptacle comprises a threaded plug 3, a circular spring plate 11 having an upper convex surface, and a head 13 with a lower concave surface of lesser curvature than plate 11, plug, plate and head being fixed together by rivets 23. The periphery of plate 11 is normally spaced from the lower peripheral edge of head 13. When screwed into a threaded opening 5 in the container, plate 11 makes a seal with a gasket 31, upward deflection of the plate being stopped by the under face of head 13 before the plate can spring over dead centre. The joint 27 between each rivet head and plug 3 is soldered to make it leak-proof. The components may alternatively be spot welded, instead of riveted together. In a modification, the plug and head are formed with hexagonal raised and depressed portions respectively, fitting in a central hexagonal hole is the spring plate, the plug and head being fixed together by a central rivet with an intermediate gasket, or by spot welding. The entire closure may be made of steel, or the portions other than the spring plate may be made of other metals or of plastic.
Patent GB-589981-A (GB)
Title: Improvement in pot type burner
IPC: F23D5/00
Filed: 1945-04-06
Abstract: 589,981. Open-tray burners. HAYTER, B., and BREESE, P. L. [trading as OIL DEVICES]. April 6, 1945, No. 8564. Convention date, April 8, 1944. [Class 75 (i)] A burner pot with a cylindrical side wall 12, Fig. 1, provided with primary air inlet apertures 13 has an offset at its open end including a cylindrical end portion 31 connected with the burner pot by an intermediate portion 30, these portions being provided with secondary air inlet apertures 32, 33. The axes of the apertures 32, 33 may be perpendicular or inclined to the portions 31, 30 and the axes of corresponding apertures in the two portions may converge near the inner wall of the burner pot. The intermediate portion 30 may be perpendicular to the side wall 12 or it may be downwardly inclined, as shown in Fig. 3. The Specification as open to inspection under Sect. 91 also comprises a burner pot with a cylindrical wall having two rows of converging secondary air inlets at its upper end. This subject matter does not appear in the Specification as accepted.