baber/WOPTO huggingface dataset:
Patent GB-392851-A (GB)
Title: A plant or still for distilling water or other liquids
IPC: B01D5/00
Filed: 1932-12-14
Abstract: <PICT:0392851/III/1> In distilling liquids, e.g. water, the vapours produced are cooled in three or more stages in the first of which the preheated liquid to be distilled is further heated in the intermediate stage the vapour is condensed by a separately circulated cooling liquid, while in the last stage the condensate is finally cooled by preheating the cold liquid.  The intermediary stages may be used to preheat feed water and convert it into steam.  All the stages may be assembled in a single unit, e.g. a still comprising an evaporator 1, a first stage cooler 2, an intermediary cooler 3, and a final cooler 4.  Water supplied from a tank 17 is fed through a pipe 5 into the cooler 4 where it is heated by condensate flowing through the coil 9b.  It then passes through a pipe 6 into the unit 2 where it is further heated by the hot vapours flowing through a coil 8a and finally flows into the evaporator 1 where it is vaporized by a steam-heated coil 40.  The vapours pass off through a pipe 8 and after traversing the coil 8a pass through a coil 9 where they are condensed by water supplied from a tank 16 through a pipe 11 to the cooler 3, the heated water passing out through a pipe 12 being recycled through an air cooler 13 by a pump 14.  Warm water for domestic &c. purposes can be drawn off through the pipe 15. Temperature control is afforded by a thermostat 21 operating a switch 23 controlling the supply of heating fluid or a switch 24 controlling the cooling fluid.  A modified apparatus is described for operation at super-atmospheric pressure.
Patent GB-1399786-A (GB)
Title: Pump for liquids
IPC: F04F7/00
Filed: 1973-07-25
Abstract: 1399786 Pumps U BAENSCH 25 July 1973 [26 July 1972] 35507/73 Heading F1R A pump comprises a pipe 9 which is angularly oscillated about a vertical axis adjacent its lower end, the pipe rising at an angle to the vertical. The lower, inlet end of the pipe draws from an inlet chamber 4 having a filtered inlet 5. The pipe is secured to a vertical torsion spring 21 secured at one end to a member 7 and carrying at the other end permanent magnets 10 which lie within the field of an electromagnet 15 adjustably mounted on the exterior of a plate 3 e.g. the glass wall of an aquarium.
Patent GB-358351-A (GB)
Title: Improvements in and relating to airplane swings
IPC: A63G9/10
Filed: 1930-11-26
Abstract: 358,351. Amusement apparatus. HESTER, F. C., 708, Mound Avenue, Leesburg, Florida, U.S.A. Nov. 26, 1930, No. 35580. [Class 132 (i).] A swing constructed in the form of an aeroplane has a body 10 having a propeller 12, a wing 19, a tail 11, and elevator 18, supporting chains being attached at 23 to the wing and the body. The body 10, formed of a plank, is cut away at 14 to form the cockpit, in which is a seat 15 with a back 16. Braces forming a foot-rest extend from the ends of the wings to the body 10, and a brace 27 is attached to the underside of the wing and extends around the seat. Slots 20 in the wing constitute hand-holds.
Patent GB-510008-A (GB)
Title: An improved electric cable
IPC: H01B7/29
Filed: 1937-12-23
Abstract: 510,008. Cables. BRITISH INSULATED CABLES, Ltd., WELBOURN, B., BRISLEE, F. J., MACFARLANE, L., and LYON, J. Dec. 23, 1937, No. 35658. [Class 36]' A cable is insulated with one or more layers of dry heat-resisting inorganic fibrous material, coated with and impregnated in its outer regions with a cellulose triester. One or more layers of cellulose triester, applied in the form of tapes, may also be included in the insulation and the cable may be sheathed with lead or a lead alloy or with asbestos or glass braiding impregnated with a synthetic resin or cellulose triester. Cellulose triacetate, plasticized with butyl phthalate or butyl phosphate, may be applied to the fibrous material, after application of the latter to the conductor and drying, as a solution in methylene chloride. The fibrous material may be asbestos or glass fibres or both.
Patent GB-1536918-A (GB)
Title: Piston loudspeaker
IPC: H04R9/02
Filed: 1976-08-27
Abstract: 1536918 Loud-speakers MINNESOTA MINING & MFG CO 27 Aug 1976 [28 Aug 1975 1 June 1976] 35799/76 Heading H4J A loud-speaker (Fig. 1) comprises a rigid diaphragm 10 having a magnetically permeable keeper 22 (Fig. 3) of channel-shaped cross-section and forming a substantially closed loop. The open side of the channel faces the diaphragm 10. Two continuous or segmented magnets 25, 27 extend one along each side wall of the channel and a voice coil 29 attached to the diaphragm is positioned in the space between the magnets 25, 27 around the substantially closed loop of the keeper 22. The rigid diaphragm 10 is formed of expanded polystyrene or polyurethane and has a planar rear face 12. The front face 11 has projections in a waffle pattern for good sound distribution, or the front face 11 is moulded or cut into threedimensional sound dispersing patterns or made to match ceiling tiles. The diaphragm 10 is preferably sealed to a rigid plastics frame 14 by silicone adhesive. A shoulder 15 around its periphery is for a T-bar support (17), Fig. 2 (not shown), of a T-bar suspended ceiling. The frame 14 has spokes 19 extending to a ring 20 in which the keeper 22 is secured. The magnets 25, 27 are of sintered ceramic or of barium ferrite or strontium ferrite particles dispersed in a flexible binder. The voice coil 29 is supported by a rigid plastics ring 32 secured to the diaphragm 10. Alternatively the voice coil 29 is moulded into a ring formed as part of the diaphragm 10. The keeper 22, magnets 25, 27 and voice coil 29 may be rectangular with the magnets and keeper provided in segments. A second smaller concentric driving loop may be used to improve high-frequency response. The driving loop is preferably spaced from the centre of the diaphragm 1/3 of the distance from the centre to the edge of the diaphragm. Alternatively, a moulded rigid diaphragm 35 (Fig. 4) has a curved front face 37 and an essentially parallel rear face 38. Undulations 39 have progressively greater amplitude as they progress from the centre to the edge. Sound is dispersed by a waffle pattern. The diaphragm centre may have thickened radial stiffening ribs or be of higher density material. The diaphragm is secured to a rigid rectangular frame 14. A circular loop soft iron keeper 43 having a channelshaped cross-section supports two magnets 45, 46 and a voice coil 48 is secured to the diaphragm rear face 38 by an aluminium ring or is moulded with the diaphragm. A centring spider 53 is of thermoformed phenol impregnated cloth or thermoformed polyester.
Patent GB-487880-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03H7/01
Filed: 1936-12-31
Abstract: 487,880. Wireless receiving systems ; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and RUST, N. M. Dec. 31, 1936, No. 35888. [Classes 40 (iii) and 40 (v)] [Also in Group XXXV] In an automatic frequency control system for a radio receiver or the like, a sharp operating characteristic is obtained by including in the discriminating network a special filter incorporating two coupled coils. An intermediate frequency valve IFV, Fig. 4, of a superheterodyne receiver has a coil 1 in its anode circuit coupled to a secondary coil 2 acting as the input to a tuned filter, comprising in a loop circuit, fixed condensers 3, 4, and inductances 5, 6, which resonate at the required frequency. Coils 5, 6, are mutually coupled and " series opposing," their mutual inductance resonating at the required frequency with condenser 7. The voltage across coil 5 is rectified in diode 11, and the control voltage obtained across load circuit 8, 9, varies as shown in the adjacent curve ; the voltage falling to zero at the required frequency. To obtain a symmetrical response on either side of the correct frequency, the described circuit may be duplicated in which case the tuning of the circuits is staggered in known manner. The inductances 5, 6 are preferably embodied in a double coil coupling unit mounted upon a rectangular core RC, Fig. 7, of ferro-magnetic material. The coils may be sectionalized ; sections of each being mounted on opposite limbs of the core. A slotted electrostatic screen ES of copper separates the two coils.
Patent GB-378756-A (GB)
Title: Improvements in enamelled plates for advertising purposes
IPC: G09F7/18
Filed: 1931-12-30
Abstract: 378,756. Signs. NEDERLANDSCHE EMAILLEFABRIEK LANGCAT NAAMLOOZE VENNOOTSCHAP, Naarden, Holland. Dec. 30, 1931, No. 35964. Convention date, Sept. 8. [Class 3 (ii).] An enamelled metal plate for advertizing purposes has a right-angularly bent margin 2 which is provided at its rear edge with a plurality of lugs 3 arranged at right-angles thereto, each lug having a hole for an attachment screw, and is characterized in that each of the lugs is arranged at, and extends on either side of, a corner of the plate.
Patent GB-741979-A (GB)
Title: Improvements in or relating to rubber products
IPC: B60C11/14
Filed: 1953-12-28
Abstract: A rubber article of manufacture particularly an automobile tyre comprises a plurality of hollow frangible particles of such size and structure that they will remain whole until they are exposed on the surface, then fracturing to form the equivalent of small suction cups.  They may be made from fused argillaceous or siliceous material preferably of a size of 0.20 to 0.001 inch in diameter.  In example (2), 100 parts GR-S, 50 parts furnace black, 3 parts zinc oxide, 1.75 parts sulphur, and softeners, antioxidant and accelerator are mixed and 20 to 60 parts of the small refractory particles added.ALSO:A rubber article of manufacture particularly an automobile tyre comprises a plurality of hollow frangible particles of such size and structure that they will remain whole until they are exposed on the surface then fracturing to form the equivalent of small suction cups. They may be made from fused argillaceous or siliceous material preferably of a size of 0.20 to 0.001 inch in diameter.  In Example (1) 100 parts of ribbed smoked sheet, 45 parts of channel black, 3 parts of zinc oxide, 2.5 parts of stearic acid, 2.75 parts sulphur and softeners, antioxident and accelerator are mixed and 20 to 60 parts of the small refractory particles added.
Patent GB-333478-A (GB)
Title: Improvements in joint-making packing
IPC: F16L23/18
Filed: 1929-11-25
Abstract: 333,478. Iseler, A. G. W. Nov. 25, 1929. Joint-making packing comprises a cover 1 surrounding an elastic core 2 and a lower closing- plate 4. The parts are curved in cross-section; the radius of curvature 6 of the part 1 is less than the radius of curvature of the part 4. The cover 1 is of copper, copper alloy, nickel, &c. The core 2 is made of asbestos, cotton, cork, leather &c., and has one or more layers, of wire cloth inserted therein to ensure the necessary degree of elasticity. When pressure is applied to the cover 1, the plate 4 is pressed down and presses the. sides 5 into an undercut portion of a dove-tailed groove 8 in the joint-plate 9. The packing may be made in the form of solid plates, or as rings of round, oval, or angular shape.
Patent GB-964027-A (GB)
Title: Optical magnetometers
IPC: G01R33/26
Filed: 1961-10-06
Abstract: 964,027. Gyromagnetic resonance testing. VARIAN ASSOCIATES. Oct. 6, 1961 [Oct. 13, 1960], No. 36076/61. Heading G1N. In an optical magnetometer oscillator of the type described in Specification 881,424 comprising an absorption cell containing an assemblage of atoms or other quantum systems having a longlived ground or metastable state split into a plurality of magnetic sub-levels by the field to be measured, wherein a monitoring optical radiation with such spectral characteristics that it is more strongly absorbed by quantum systems in one set of sub levels than by those in the other set is passed through the cell and intercepted by an optical detector to produce as a result of its intensity modulation an h.f. signal which is amplified and fed back to the cell in the form of a resonance frequency alternating magnetic field with the proper phase to sustain the beam modulation by forced precession of the systems, and in which the oscillation frequency provides a continuous indication of the field intensity; difficulties arising from orientation dependence in airborne equipment namely hemisphere effect and dead zone effect are overcome respectively by using a pair of cells 1, 2, Fig. 1, the output signals i, i, of which are cross coupled through amplifiers 12, and by using a plurality of optical magnetometers la-c, 2a-c, Fig. 3 with their optical axes disposed at an acute angle for example 45 degrees. The light source comprises an electrodeless discharge lamp comprising a bulb of rubidium vapour mixed with Krypton for starting purposes energized by an external coil 4 from an RF source 5, a coaxial feeder 6 being used to reduce magnetic distortion. The beams are filtered in filters 7, to select the desired wavelength, and passes through collimating lenses 8 and a circular polariser 9 to the cells, the cell light output focused on photo-cells 11 which each comprise a mosaic of silicon cells, producing a signal for application to coaxial coils 1<1>, 2<1> which are oppositely wound and maintain precession. The cells contain a rubidium vapour isotopically enriched with rubidium 85, or rubidium 87 mixed with a buffer such as nion to reduce wall collisions. The fed back signal is mixed with the output of a crystal controlled oscillator 14 for frequency measurement which is recorded on an instrument 15. Separate lamps providing parallel beams in the same or opposite directions may alternatively be used, and according to the arrangement the beams may be similarly or oppositely polarised to produce inverse distributions of sub level absorption. The use of two magnetometers to measure field gradient is referred to, the second being connected to replace the crystal oscillator 14 so that instrument 15 indicates gradient.
Patent GB-361129-A (GB)
Title: Improvements in straight bar knitting machines
IPC: D04B15/64
Filed: 1930-12-01
Abstract: 361,129. Straight-bar kniting- machines. LACEY, W., Trent Works, Wilford Crescent East, SHAW, F. W., 26, Ladysmith Street, both in Nottingham, and BRETTLE & CO., Ltd., G., Belper, Derbyshire. Dec. 1, 1930, No. 36094. [Class 74 (ii).] The lever G for driving the slur cock &c. mechanism of a Cotton's &c. machine is pivoted on the draw side A at H and its fulcrum is formed by a toothed sector G<2> which rolls on a fixed rack L. The slide is mounted in antifriction guides B and is driven by the draw-cam E. The teeth of the sector may be shrouded on one or both sides. The lever G is connected by a link J to the slur-cock rail.
Patent GB-1045676-A (GB)
Title: Improvements in or relating to electrical bushings
Inventor: MARTIN ERHARD HERBERT ERWIN
IPC: H01B17/28
Filed: 1962-09-22
Abstract: 1,045,676. Bushing insulators. DUNLOP RUBBER CO. Ltd. Aug. 29, 1963 [Sept. 22, 1962], No. 36121/62. Heading H2C. An electrical bushing comprises a tubular flexible member 2 of insulating material having at least one layer of flexible conductive mesh 3 embedded therein. As shown, three spacedapart coaxial tubes 3 of aluminium wire mesh 4 are embedded in tube 2, the outermost wire mesh tube 3a being earthed at 6. The tube 2 may be manufactured from butyl rubber (see Specification), ethylene propylene rubber, natural rubber, or combinations of synthetic or natural rubber. The mesh 4 is orientated for maximum flexibility, as shown where part of the conductor 5 and tube 2 have been cut away. A layer of mesh may also be provided around the internal surface of the tubular member, and the outer layer may be of mesh instead of rubber as shown. The bushing may be manufactured by alternatively wrapping unvulcanized rubber sheet and aluminium mesh, into which a thin sheet of rubber has been pressed to exclude air, on a mandrel having a diameter equal to that of conductor 5, the whole then being cured. Alternatively extruded rubber tubes may be stretched over the mandrel, or narrow strips of sheet rubber and mesh may be wound helically upon the mandrel.
Patent GB-172870-A (GB)
Title: Improvements in drags for beams of looms
IPC: D02H13/28
Filed: 1920-12-24
Abstract: 172,870. Scott & Sons, Ltd., J., and Mudie, A. Dec. 24, 1920. Letting-off warps.-In drags for loom beams of the type having adjustable shoes engageable with the beam or with an element connected therewith, two series of friction shoes 2 provided with friction linings 3, of leather, for example, are arranged one on each side of the bulge or swell of a barrel-shaped surface on the drag shaft 6, the friction surfaces being shaped to correspond with the contour of the barrel, so that there is no tendency for the drag to move axially of the drag-shaft. The two series of friction shoes can be independently adjusted by means of set-pins 5 in screw-threaded engagement with a drum 1, which is provided with a ratchet 8 engageable by the usual pawl or detent.
Patent GB-842046-A (GB)
Title: Improvements in abrasive blasting machines
IPC: B24C7/00
Filed: 1956-11-27
Abstract: 842,046. Abrasive blasting. ASHWORTH, N. 1. Nov. 14, 1957 [Nov. 27, 1956], No. 36185/56. Class 60. In an abrasive blasting machine comprising a hopper with a conical bottom for abrasive particles mixed with water to moisten them, a delivery opening in the conical bottom, means for forcing the particles through the opening by compressed air in the hopper and an ejector which receives the particles and through which air under pressure flows and picks up the particles for discharging them on the surface being treated, a metering plate is detachably fitted to the bottom of the hopper, the plate having a discharge aperture which is approached by a conical passage connecting the edge of the discharge aperture and the edge of the opening in the conical bottom of the hopper. An open upper compartment 11 communicates through an opening controlled by a valve 14 with an intermediate compartment 15 which communicates through an opening controlled by a valve, 17 with a lower compartment 1a. The valves 14 17 are operated by chains 19 wrapped around shafts having handles 20a, and are shaped so that when closed they are held closed by air pressure below them. The lower compartment 1a has a conical bottom to which is fitted one of a set of interchangeable plates 3 having metering apertures of different sizes. The aperture in the plate is connected by a conduit 4 containing a valve 6 with an ejector chamber 5, the inlet of this chamber is connected to a compressed air supply A and the outlet is connected by a flexible pipe 8 to a spray gun or discharge nozzle. The size of the discharge orifice in the gun is related to the size of the aperture in the plate 3. The supply of compressed air from source A is controlled by a main valve 20; valves 21, 22, 23 control the admission of compressed air to the ejector, the lower compartment 1a and the intermediate compartment 15 ; air can escape from the latter under the control of valve 24. A valve 31 controls the admission to the intermediate chamber 15 of water from a mains supply, and a valve 32 controls the admission to the intermediate chamber 15 of rust-inhibiting solution, from a tank B to which compressed air can be admitted under the control of valve 25. A measured quantity of abrasive, e.g. sand, is placed in the upper compartment 11, the valve 14 being closed. Valve 17 is closed, valve 23 closed and valve 24 opened ; valve 14 is then opened and the abrasive passes into the intermediate compartment 15. Water in the required quantity is then admitted to the intermediate compartment 15, to wet the abrasive, valve 14 is closed, valve 24 is closed and valve 23 opened to pressurize compartment 15 and hold valve 14 closed. Valve 17 is then opened and the abrasive passes into the lower compartment 1a. Valve 17 is then closed. Valve 22 being open, compartment 1a is pressurized and valve 17 is held closed. The abrasive passes to the ejector and enters the air stream, valve 21 being open.
Patent GB-1478036-A (GB)
Title: Photoresist composition
IPC: H05K3/00
Filed: 1974-08-16
Abstract: 1478036 Photo-resist materials HITACHI Ltd 16 Aug 1974 [24 Oct 1973] 36220/74 Heading G2C A photo-resist composition comprises a watersoluble polymer, a bis-azide photo-crosslinking agent and an alkylene glycol of molecular weight less than 134À18. Specified polymers are acrylic and vinyl polymers and copolymers and gelatine and specified alkylene glycols are mono- and diethylene glycol, mono- and di-propylene glycol, 1,3-butylene glycol and 1,5-pentane diol. The addition of the glycol to the photo-resist ensures more uniform coating. The photo-resist may contain a silane to improve adhesion to the support.
Patent GB-448804-A (GB)
Title: Improvements in and relating to the production of sulphonated products
IPC: B28B1/093
Filed: 1934-12-18
Abstract: Crude or purified aromatic or hydroaromatic polysulphonic acids are treated at ordinary or slightly raised temperature with the requisite proportion of a hydroxy containing hydroaromatic compound or of an aliphatic alcohol containing ten or more carbon atoms to give ester-sulphonic acids.  The latter have wetting and washing properties and are stable to acids and salts such as magnesium or aluminium sulphate.  The ester-acids after neutralisation may be employed alone or together with solvents, pigments, mineral oils, fats or fatty alcohols for defatting, fatting, greasing or finishing. They may be used for dispersing starch, and with solvents, mineral oils and fats they form water miscible products.  Their use in dyeing, carbonizing, fulling and tanning in the textile, fur and leather industries is referred to. By reaction with nuclear combining materials, e.g. formaldehyde, paraldehyde and benzyl chloride sulphonic acids which may be used for tanning, mordanting, fixing basic colours and coloring lacquers are produced.  In examples: (1) naphthalenedisulphonic acid, obtained from naphthalene and oleum is partially esterified with olein alcohol or the alcohols from cocobutter and neutralized with caustic soda or pyridine; (2) xylol disulphonic acid is partially esterified with cetyl alcohol; on neutralizing a product is obtained suitable for fatting leather; (3) a cresol polysulphonic acid is partially esterified with sperm oil alcohol and neutralized; (4) a carbolic acid polysulphonic acid is partially esterified with cetyl alcohol and neutralized; with cetyl alcohol the product may be used for revivifying artificial silk; (5) a cresol polysulphonic acid is partially esterified with cetylalcohol and treated with formaldehyde to give a tanning agent.  Any carboxy free aromatic or hydroaromatic polysulphonic acid may be used for the esterification, such as those of benzene, toluene, anthracene, naphthols, tetrahydrobenzene, tetrahydronaphthalene, hydrogenated phenol and their chlorinated derivatives.  The following alcohols are mentioned: lauryl, stearin, and naphthenyl-alcohols, cholesterin and other woolfat alcohols.  Polyhydric alcohols such as that obtained by reduction of castor oil may also be used.ALSO:Aromatic or hydroaromatic polysulphonic acids are treated at ordinary or slightly raised temperature with the requisite proportion of a hydroxy containing hydroaromatic compound or of an aliphatic alcohol containing ten or more carbon atoms to give ester-sulphonic acids, which are stated to form water miscible product with solvents, mineral oils, and fats.  Alkali salts of the ester sulphonic acids serve as dispersing agents for starch. In examples polysulphonic acids of naphthalene, xylol, cresol and phenol are partially esterified with olein, cetyl and cocobutter alcohols.