baber/WOPTO huggingface dataset:
Patent GB-237936-A (GB)
Title: An improved method of and apparatus for producing a fuel and air mixture for an internal combustion engine
IPC: F02M21/00
Filed: 1924-02-05
Abstract: 237,936. White, A. E., (Stewart-Warner Speedometer Corporation). Feb. 5, 1924. Spray carburettors.- The velocity of the air current produced by the engine suction is increased at two successive points in its flow by restricting the passage at these points. and fuel is introduced in the vicinity of each restriction at points so differently related to the points of greatest restriction and the degree of restriction at said points being so related, that the air current exerts the maximum fueldrawing effect at different rates of air flow. The inlet of air is controlled by a valve 9 and its velocity is increased at two successive sections constituted by the throats of Venturi passages 3, 4 arranged in series. The mixture outlet is at 6. Two nozzles 1, 2 fed from a float chamber C discharge fuel at the point of greatest depression in the Venturi passages 3, 4 respectively, such point being in advance of the most restricted section. The position of the nozzle 2 is such that the maximum flow of fuel therefrom is not obtained until a speed of the air current has been reached which is higher than that which produces maximum flow from the nozzle 1. In addition to this location of the nozzles, the axial contours of the Venturi passages may vary, one being for example less constricted than the other. The arrangement may be such that the increase in the rate of fuel flow from one nozzle may overlap the period of decrease in the other.
Patent GB-762009-A (GB)
Title: Improvements in or relating to the denitridisation of steel
IPC: C22C7/00
Filed: 1952-04-07
Abstract: Steel is denitridized by the addition of a mixture of hydrated sodium carbonate and boron or lithium.  The boron may be in the form of ferro-boron and anhydrous sodium carbonate may be included in the mixture, the proportions of the mixture in this case being: Na2CO3.10H2O-12 parts by weight; Na2CO3-12 parts by weight; ferroboron-1 part by weight.  When treating steel made by the basic Bessemer process, the steel is blown in the usual way and, after deslagging, the mixture is thrown into the converter.  The steel is then blown for a short time to submerge the reagents, the converter lowered, the slag run off and the steel deoxidized with ferromanganese.  With the acid Bessemer process, the steel is blown and deoxidized in the normal way and the mixture is added to the ladle before tapping.  The mixture may also be added in the open-hearth furnace or in the stream of metal.  The hydrated sodium carbonate component of the mixture causes some dephosphorization as described in Specification 761,969.
Patent GB-932542-A (GB)
Title: Improvements in or relating to photoelectric systems
Inventor: HILL WILLIAM FRANK
IPC: H04B10/11
Filed: 1960-01-28
Abstract: 932,542. Photo-electric systems. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. April 28, 1961 [Jan. 28, 1960], No. 3125/60. Class 40 (3). Photo-electric apparatus comprises a light source such as an electric lamp or discharge tube fed from a source of A.C. via a half-wave rectifier so that the light is amplitude modulated at the supply frequency, and a frequency discriminating receiver selectively responsive to such modulated light. Alternate half-cycles of current from a transformer 3 are supplied to a lamp 1 and a resistor 6 via rectifiers 4 and 5 respectively so that light from the lamp may be distinguished from extraneous light modulated at twice the supply frequency. The light is received by a phototransistor Tr1 which is connected to a transistor Tr2 to form an amplifier in which a twin-T network of resistors R1,- R2, R3, and capacitors C1, C2, C3 form a feed back path so that the gain of the amplifier is reduced at frequencies other than that of the supply 2 to the transformer 3. The output from the amplifier is supplied via a transistor switch Tr3 and an output transistor Tr4 to operate a relay A. Information may be impressed on light from the lamp 1 by means of a shutter or by keying the supply to it. Instead of frequency discrimination against extraneous light a phase-sensitive receiver may be used to accept only those signals from the light-sensitive detector that are synchronous with the supply 2.
Patent GB-162768-A (GB)
Title: Improvements in means for securing hollow gudgeon pins in position
IPC: F16J1/18
Filed: 1920-02-02
Abstract: 162,768. Pullin, C. G., and Groom, S. L. Feb. 2, 1920. No Patent granted (Sealing fee not paid). Joint pins.-A method of securing a hollow gudgeon pin, which is especially applicable for securing a gudgeon-pin in a piston, consists in the use of a split pin 10, which is passed through holes in the gudgeon-pin 7 and in the bearings 4, and is expanded in the interior of the gudgeon-pin. The latter may be further secured at each end by a convex disc of a metal, having a higher co-efficient of expansion than the bearings, which is inserted in the bearing, and wedged in position by flattening it.
Patent GB-138638-A (GB)
Title: Improvements in or relating to gas masks
IPC: A62B18/08
Filed: 1920-02-04
Abstract: 138,638. Mayer, M. June 10, 1916, [Convention date]. Addition to 138,631. Respiratory appliances.-Relates to gas masks having glass eyepieces or goggles provided on their inner sides with replaceable gelatine disks, as described in the parent Specification, and consists in the interposition of an independent waterproof transparent layer between the gelatine and the glass. The waterproof layer may consist of a separate disk of cellon or celluloid placed between the glass and the gelatine disk. The gelatine disk employed may be slightly hardened, or may be replaced by a disk of viscose, which is stated to be similar in effect. The Specification as open to inspection under Sect. 91 (3) (a) describes also modifications in which a disk of cellon or celluloid is coated on one or both sides with gelatine or in which the. gelatine disk is coated on the side next to the glass with a waterproofed transparent varnish. This subject-matter does not appear in the Specification as accepted.
Patent GB-277550-A (GB)
Title: Improvements in wearing-apparel
IPC: A41D15/00
Filed: 1927-02-08
Abstract: 277,550. Faver, C. Feb. 8, 1927. Dresses; coats; s k i r t s ; knickerbockers.-Ladies outer garments, such as costumes, dresses, and coats, are made with detachable parts to enable the mode of the garment to be changed. The detachable part R is held in position by laces or cords 7 and by removing same the garment can, for example, be changed from a dress with collars and revers to an open-fronted garment. By replacing one set of detachable parts by another the mode is also changed. A skirt with two detachable panels made with compartments for the legs may be changed to knickerbockers. The edge 2 of the garment is doubled and the revers and collars are of doubled material so that the lacing remains invisible.
Patent GB-782087-A (GB)
Title: Improvements in devices for braking rollers in rolling mill stands
IPC: B21B35/10
Filed: 1956-02-06
Abstract: 782,087. Rolling. GODEL, F. Feb. 6, 1956 [Feb. 7, 1955], No. 3577/56. Class 83 (4). In a rolling mill, the backlash during idle running is avoided by using brakes which have the non-rotating parts attached to the roll chocks. In one example a roll 1, Fig. 2, has a brake disc 6 keyed to a journal 5 at the end of the roll remote from the drive. The fixed part of the brake comprises a sleeve 10 attached to the chock 3 and carrying a spring pressed plate 8 which engages the disc 6. In a modification the journal 5, Fig. 3, carries a brake drum 11 which is engaged by a brake band 12 attached to a bracket 13 on the roll chock 3. The band is tensioned by springs 9 at each end. Hydrodynamic or electric braking may also be used and in reversible mills two brakes operating in opposite directions may be fitted.
Patent GB-689777-A (GB)
Title: The production of 3-mono acyloxy derivatives of substituted alkanes and of the 3-hydroxy compounds
IPC: C07D295/084
Filed: 1949-02-10
Abstract: Amino-alcohols of the formula <FORM:0689777/IV (b)/1> where R is hydrogen or alkyl and Z represents two aliphatic groups or a part of a closed ring structure, are made by hydrogenating the corresponding ketones, e.g. with a catalyst or by means of lithium aluminium hydride.  Catalytic hydrogenation may be effected with platinum oxide at room temperature under 40 lb. pressure or with Raney nickel at 185 DEG  C. and 2000 lb. pressure. The ketones are preferably reduced in the form of their hydrohalide salts when corresponding salts of the alcohols are produced.  Examples show the preparation of 4 : 4-diphenyl-6-dimethylaminoheptan - 3 - ol, 4 : 4 - diphenyl - 6 - morpholinoheptan - 3 - ol and 4 : 4 - diphenyl - 6 - morpholinohexan-3-ol.  Esters of the above alcohols are made by treating the latter with acylating agents Preferably a hydrohalide salt of the alcohol is used, with excess of acylating agent.  When the latter is a nitrobenzoyl derivative the nitro group may subsequently be reduced to amino and thereafter converted into an acylamino group. Examples show the production of the formyl, acetyl, propionyl, p-nitrobenzoyl, p-aminobenzoyl and p-acetylaminobenzoyl derivatives of 4 : 4 - diphenyl - 6 - dimethylaminoheptan-3-ol, the acetyl and propionyl derivatives of 4 : 4-diphenyl-6-morpholinoheptan-3-ol and 3-acetoxy-4 : 4-diphenyl-6-morpholinohexane.  According to the Specification as open to inspection under Sect. 91, the group -NZ may be aliphatic amino, aromatic amino or heterocyclic amino.  This subject-matter does not appear in the Specification as accepted.
Patent GB-672548-A (GB)
Title: Improvements in spring seating
Inventor: RACE ERNEST DAWSON
IPC: A47C7/32
Filed: 1950-02-13
Abstract: 672,548. Spring seats. RACE, Ltd., E. Jan. 24, 1951. [Feb. 13, 1950] No. 3655/50. Class 52 (iv). A chair back and seat comprises a number of coiled springs 4 loosely mounted in plastic sleeves, the ends of the individual springs being connected to the frame members by clips. As shown, the coiled springs 4 are loosely encased in plastic tubes or sleeves 6 the hook ends 5 of the springs passing through apertures 9 in the ends of metal strips 7 embracing the frame members 13 and constituting the clips. The clips are preferably protected by a sheath 8 of plastic material and the connecting ends of the clips are disposed within the sleeves 6 of the springs 4. The springs may be arranged in parallelism or the arrangement may be radial or other convenient form. The springs may be spaced by wire members having loops 16.
Patent GB-305809-A (GB)
Title: Improvements in or relating to down-draught baffling devices for water heaters, geysers and the like
IPC: F23M9/00
Filed: 1928-02-06
Abstract: 305,809. Gas Light & Coke Co., and Clark, J. G. Feb. 6, 1928. Flue pipes. - A down-draught baffling device for the flue pipes of water heaters, geysers, &c. consists of an inner tube 2 which is spaced apart by stays 3 from a surrounding casing or tubular member 1 a n d carries a baffle plate 5 adapted to deflect downdraught through openings 4 in the wall of the inner tube into the space between the said tube and the outer casing. The baffle plate 5, which may have a convex lower face and a flat or concave upper face, is supported by projections 7 about midway of the length of the openings 4. The stays 3 are preferably bent from the inner tube 2 and have their edges 8, 10, 11, 12 so shaped that the outer casing 1 fits tightly on such members. The cap part 14 of the casing fits on the inner tube 2 and it may either be formed integrally with the main part 1 of the casing or have are-entrant flange connection 13 therewith. The inner tube 2 may have a swage 16 at its lower end for the purpose of connecting the flue from a geyser &c. The stays 3 may be rigidly attached to the inner tube 2 instead of being formed integrally therewith. The baffle plate 5 may have one or more holes to allow water to pass back into the heater. The inner tube 2 and fins 3 may be formed from a sheet metal blank, Fig. 5, which is slit along the lines 26 - - 30, 33, 34, 35, and 38, the parts 3 being bent up at right-angles to the blank. The sheet is bent to its proper diameter and during this operation the baffle 5 is positioned so as to engage in the slits 38.
Patent GB-1457258-A (GB)
Title: Magnetic recording media
IPC: C09D7/12
Filed: 1973-01-25
Abstract: 1457258 Magnetic recording media EMI Ltd 14 Jan 1974 [25 Jan 1973] 3763/73 Heading B2E A magnetic recording medium comprises a support having first and second overlying layers of magnetisable material, the layers being separated by a barrier region of non- magnetisable material, the coercivity of the magnetisable material of the layer closer to the support being less than that of the magnetisable material of the outer layer. The barrier layer may be about 4Á thick or less. The layer nearer to the support may have a coercivity of 200 to 350 Oe while the outer magnetic layer may have a coercivity of 350 to 2000 Oe or chromium dioxide. In an exemplified tape a substrate web of polyethylene glycol terephthalate or other plastics material has a layer comprising particles of, for example, a magnetisable metal or metal alloy powder, chromium dioxide, cobalt doped iron oxide, magnetite, γ-ferric oxide, an overlying layer of non-magnetisable material and a further magnetisable layer which may contain the magnetisable material specified in the first magnetic layer or may be an evaporated metal film, formed for example from a mixture of cobalt and chromium, the chromium constituting 1-20% by weight. The intermediate layer may have a thickness of about 4Á and comprise α-ferric oxide in a suitable binder. The recording medium may be a tape, disc, drum or card.
Patent GB-1491305-A (GB)
Title: System for passing products to be treated through a machine
IPC: H02P8/00
Filed: 1975-01-29
Abstract: 1491305 Control of stepping motors VECO BEHEER ELECTROFORMING / PHOTOETCHING BV 29 Jan 1975 [8 Feb 1974] 3795/75 Heading H2.J A system for passing products to be treated through a machine, provided with a motor driving a plurality of supporting rollers and a regulating circuit to control the motor, uses a step motor 14 to drive the rollers 3 through gearing 2 and a regulating circuit comprising a constant frequency crystal oscillator 9 supplying a high frequency voltage (e.g. 1 MHz) through a fixed frequency divider 10 to a frequency divider 11 variable by an adjusting element 12, the setting of the latter being shown on an indication element 13 and determining the time taken by the products to traverse the treatment distance (L) of the machine, Fig. 1 (not shown), which may be a furnace or an etching machine. The motor 14 responds to the front of each rectangular voltage pulse from the divider 11 and subsequently runs over a fixed angle whereby the number of steps per rotation of the motor is fixed. Typical equations are derived relating the traversing distance L, the diameter d of the supporting rollers, the ratio t of the gearing 2, the number of steps n per rotation of the motor, the frequency of the oscillator 9 and the factor of the divider 10. A known system is described, Fig. 2 (not shown), using a D.C. drive motor with closed-loop speed control having regulated thyristors.
Patent GB-972931-A (GB)
Title: Improvements in or relating to sheet metal enclosures for electrical apparatus such as electric wall boxes
Inventor: APPLEBY LESLIE
IPC: H01R4/64
Filed: 1962-02-01
Abstract: 972,931. Earthed enclosures for electrical apparatus. GENERAL ELECTRIC CO. Ltd. May 1, 1963 [Feb. 1, 1962; June 15, 1962], Nos. 3859/62 and 23138/62. Headings H2B and H2E. A sheet metal enclosure for electrical apparatus such as switches or sockets, or trunking or other enclosures to earth a conductor, has a prong 3 pressed out of the metal of the base so that it projects into the box and runs parallel to the box for most of its length. The prong 3 is of a size to fit into the bore of a conventional connector 4, and be clamped there by screws, which connector is earthed by lead 5.
Patent GB-680567-A (GB)
Title: Prevention of corrosion of metals by gases and vapours
Inventor: EVANS ELLIOTT ALFRED
IPC: C23F11/02
Filed: 1950-02-15
Abstract: Fabric which is to be used for protecting ferrous metals against rusting, has applied to or embodied in it, a compound obtained by condensing an aromatic aldehyde or ketone with a non-aromatic amine having not more than 12 carbons and in which the amino nitrogen is not directly attached to an aromatic nucleus.  Compounds specified are dimorpholinyl 2-hydroxy phenyl methane, benzal cyclohexylamine, benzal benzylamine, dimorpholinyl phenyl methane, dicyclohexyl amino phenyl methane, benzal-n-butylamine, benzal n-octylamine, 2-phenyl oxazolidine, 2 - phenyl - 3 - (b  - hydroxy ethyl) oxazolidine, dibenzal ethylene diamine, disalicylal ethylene diamine and 2-phenyl 2-methyl oxazolidine.  Specification 588,864 is referred toALSO:Ferrous metals are protected against corrosion by gases and vapours by coating with a solution, using a volatile solvent, of a compound prepared by condensing an aromatic aldehyde or ketone with a non-aromatic amine.  The amine is a primary or secondary mono-or poly-amine having not more than twelve carbon atoms, the amino nitrogen atom not being directly attached to an aromatic nucleus. Compounds specified include dimorpholinyl 2-hydroxy phenol methane, benzol cyclohexylamine, benzol benzylamine, benzol n-butylamine, 2-phenyl oxazolidine and disalicylal ethylene diamine.  Specification 588,864 is referred to.
Patent GB-1022510-A (GB)
Title: Improvements in or relating to welded joints between tubes
Inventor: KOEHLER HORST
IPC: F16L13/02
Filed: 1965-01-30
Abstract: 1,022,510. Welding by fusion. MANNESMANN A.G. Jan. 30, 1965, No. 4198/65. Heading B3R. [Also in Division F2] A welded spigot and socket joint between two tubes 1, 2 with protective linings 3, 4 has a spigot end 21 of the tube 1 extending into a sleeve 10 formed on the end of the tube 2; there is also a further sleeve 5 on the tube 1 extending to the sleeve 10 so that an annular chamber 7 is formed between the spigot 21 and the sleeve 10 wherein are provided a seal 11 and also heat insulation 8 between a circumferential weld joining the sleeves 5, 10 and the spigot 21, into which chamber the protective lining 3 extends outside tube 1 at least to the seal 11; the protective lining 4 extends similarly inside the sleeve 10. A locating ring for the seal 11 is welded on to the outside of the tube 1. In Fig. 1 the sleeves 5 and 10 are welded on to the tubes 1 and 2 and the seal is in the form of an O-ring. Figs. 2 to 7 (not shown) illustrate alternative constructions.
Patent GB-1165707-A (GB)
Title: Machine for Dry Corrugating
Inventor: METHVEN GEOFFREY WILLIAM
IPC: B31F1/26
Filed: 1965-11-10
Abstract: 1,165,707. Corrugated laminates. NEW MERTON BOARD MILLS Ltd. 8 Nov., 1966 [10 Nov., 1965; 31 Jan., 1966], Nos. 47818/65 and 4200/66. Heading B5N. [Also in Division D1] A paper or board web 1 which has been corrugated by rolls 2, 3 (see Division D1) is held in contact with the roll 3 until it passes between the roll 3 and a plain surface roll 8 by an arcuate guide 5 forming part of a body 6 provided with temperature control means. A liner web 7 of kraft paper previously coated with adhesive is fed into the nip between the rolls 3, 8 and adheres to the web 1. Alternatively, adhesive may be applied to the corrugations of the web 1. A second liner web 11 may be applied to the other face of the web 1. The roll 8 may be heated, the web 7 may be preheated and the composite web may be post-heated through an arc 10.
Patent GB-1124703-A (GB)
Title: Exhalation device for respiratory masks
Inventor: ULMANN PAUL
IPC: A62B18/10
Filed: 1967-01-27
Abstract: 1,124,703. Respiratory apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. 27 Jan., 1967 [18 Feb., 1966], No. 4202/67. Heading A5T. An exhalation valve for a respiratory mask which may be connected alternatively with a gas supply or a gas filter comprises a casing A haying a perforate cover 12, a valve seat 22 and containing a valve 24, the valve being urged against its seat by its own resilience and by a spring 40 between the cover and an apertured bearing cup 36, there being a control ring 46 screwed to the bearing cup and permitting removal of the cup from the valve for cancelling the loading by the spring 40. The valve is loaded by the spring 40 only when the mask is connected to a gas supply. The screws 44 securing the cup 36 to the control ring 46 are slidable in L-shaped slots 48, one limb of each slot serving to lock the screws so that the cup and spring 40 are held clear of the valve (Figure 3). The valve 24 comprises a diaphragm 32 having a stem 26 which is fixed by arms 30 so that the periphery of the diaphragm is deformed when it bears against the seat 22.
Patent GB-1435501-A (GB)
Title: Rotary positive displacement fluid flow apparatus
IPC: F01C1/344
Filed: 1972-01-29
Abstract: 1435501 Rotary positive-displacement fluidmachines E W ABSOLON 30 April 1973 [29 Jan 1972] 4257/72 Heading F1F A meter, or pump, has a rotor 3 with axially sliding vanes 10 engaging with cam surfaces 16, 17, 18 on the housing end-walls 2, inlet and outlet ports 5, 6 communicating with working spaces between the rotor and end-walls in the regions of the surfaces 18. The rotor is fixed to an input, or output, shaft 7, which is mounted on bearings in the end-walls, Fig. 2 (not shown).
Patent GB-178245-A (GB)
Title: Improvements in thread cutting temples for looms
IPC: D03D49/70
Filed: 1921-02-05
Abstract: 178,245. British Northrop Loom Co., Ltd., (Northrop Loom Co.). Feb. 5, 1921. Weft, cutting.-The movable cutter of a thread-cutting temple is formed of a single piece of cast iron, and comprises a body 13, a heel 14 projecting from one edge of the body, and a chilled cutter blade 15 projecting from another edge of the body, the cutting-edge being formed on the chilled portion. The movable cutter coacts with a fixed blade 10 and the side containing its cutting-edge extends at an angle to the sides of the body and is inclined towards the centre of the body. The blades 10, 15 are held in operative position by a resilient plate 20 adjustable by a set-screw. The cutter 15 has a rocking as well as a backward and forward motion and is held in place in the usual recess in the temple head by the spring 16, which is secured to the heel 14 and to the temple-carrying bar 4. When the heel 14 is struck by the lay, the cutter 14 is swung downwardly and forwardly to effect the cutting of the thread extending from the cloth.
Patent GB-324822-A (GB)
Title: Electric multi-conductor cable
IPC: H01B9/00
Filed: 1929-02-08
Abstract: 324,822. Sonnenfeld, H. Feb. 8, 1929. Addition to 273,167. Cables of special cross-section; armouring cables. - In multi-core cables of the type not surrounded by a common lead sheath, the common protective layers are made non-circular to conform closely to the outer surfaces of the conductors. Fig. 1 shows a cable comprising insulated conductors K<1> - - K<4> covered with lead sheaths p<1> - p<4>, respectively. Fillers z<1> - -z<4> are placed between the cores and the common protective layers s<1> - -s<3> of jute, iron tape, or flat wire which are of the non-circular section shown. Fig. 3 shows a lead covered two-conductor power cable combined with a telephone cable. The conductors k<1>, k<2> of the power cable are formed with insulation i<1>, i<2>, respectively, and are sheathed in a common lead covering p'. The telephone cable t, has a lead sheath p<2>, and a common non-circular protective layer s surrounds the whole cable as shown.