baber/WOPTO huggingface dataset:
Patent GB-1243936-A (GB)
Title: Improvements in or relating to processes of preparing air-pervious fabric structures
IPC: B32B5/26
Filed: 1970-02-19
Abstract: 1,243,936. Laminated fabrics. HERCULES Inc. 19 Feb., 1970 [3 March, 1969], No. 8132/70. Heading B5N. [Also in Division D1] Air-pervious fabrics are made by either bonding the fibres of a non-woven web or by laminating fabrics, using an oriented thermoplastic film having a melt-embossed pattern wherein the thin sections are less than 2 mils thick, the thick sections are at least 6 mils thick and the ratio of the two thicknesses is at least 4:1. Various types of embossed films are illustrated. Bonding is achieved by contacting the film and fabrics or web whilst heating, e.g. at 125-225‹ C., preferably under pressure. The fabrics may be woven, knitted or non-woven cotton, wool, polypropylene, regenerated cellulose, cellulose acetate, polyamide, acrylate, vinyl or polyester. Non-woven wobs may be carded, garneted or random-laid and may be made of sisal. The film may be polyethylene, polypropylene, polyester, polyamide or a copolymer of ethylene with propylene, vinyl acetate or methyl acrylate, and may be made by extruding between shaped rollers. Heat for bonding may be supplied via rollers or hot gases.
Patent GB-134475-A (GB)
Title: Improved Appliance for Burning a Candle.
Inventor: GUEST HAROLD AUGUSTINE TOLLEY
IPC: F21V35/00
Filed: 1919-04-01
Abstract: 134,475. Guest, H. A. T. April 1, 1919. Candle holders and grease - guards. - A tubular piece a fits over the candle with its inturned upper rim resting on the top of the candle so that the piece a descends as the candle burns away. The piece a is formed above the rim with a molten wax container a<4> having a central hole at the top through which the candle wick projects and the top of the container forms a shallow cup a<7>. The tubular piece fits over a cylindrical piece c forming a rest for the candle and mounted on a tray d and also fits within a concentrically arranged tube e on the tray. Small holes may be formed in the tubular piece for the admission of air.
Patent GB-510861-A (GB)
Title: An improved process for the production of copper free from oxygen and other gases
IPC: C22B15/14
Filed: 1939-03-14
Abstract: 510,861. Refining copper. HERAEUS VACUUMSCHMELZE AKT.-GES. March 14. 1939, No. 8218. Convention date, April 6, 1938. [Class 82 (i)] Copper free from gaseous impurities and oxygen derived from an oxidizing treatment for removing the oxidizable impurities, is produced by treating the molten copper under reduced pressure on a carbon hearth or in the presence of carbon. The copper so treated is cast in vacuo or under a protective atmosphere. During the treatment under reduced pressure residual small amounts of bismuth, lead, zinc &c. are reduced and distil off.
Patent GB-441436-A (GB)
Title: Improved apparatus for spraying coating materials on walls and for like purposes
IPC: E04F21/12
Filed: 1935-03-16
Abstract: 441,436. Cement guns. ECHBERG, A. F., and TEXCRETE, Ltd., 296, High Holborn, London. March 16, 1935, No. 8243. [Class 20 (ii)] [See also Group XXIX] An apparatus for spraying cement and granular material either separately or together on walls &c., comprises a hopper 1 divided by a partition 1<a> into two compartments 11, 12 leading to an ejector 3 for the cement and a passage 14 for the granular material respectively. The cement ejector comprises a tubular member 3 having an upstanding socket 2<a> communicating with the chamber 12, and is provided at one end with a tube 4 having a packing gland 5 through which a tube for compressed air may pass. The outer end of the tube 3 is provided with a plug 7 having a conical opening extending to the branch 2. The granular material is ejected through a T-shaped member 13, 14 which when not required may be turned upwards about a set screw 15. Reference has been directed by the Comptroller to U.S.A. Specification 1,863, 924.
Patent GB-994527-A (GB)
Title: Improvements relating to testing apparatus for electrical insulation
Inventor: PRITCHARD EVAN ARTHUR
Filed: 1963-03-01
Abstract: 994, 527. Calibration. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 26, 1964 [March 1, 1963], No. 8362/63. Heading G1U. [Also in Division H1] Testing apparatus for simulating the conditions arising across a cavity in insulation under test comprises three aligned electrodes, the spacing between the second and third electrodes being adjustable to represent the cavity, means for applying a high tension voltage across the first and third electrodes, and a capacitor coupling to the second electrode whereby the voltage developed across the second and third electrodes can be measured. It is stated that the equivalent circuit of a slab of insulation containing a void is a capacitor in parallel with two capacitors in series, the latter corresponding to the capacitance of the void and the capacitance of the walls of the void to electrodes in contact with the slab. Fig. 3 shows apparatus forming the equivalent circuit and adapted to calibrate a discharge detector for testing insulation. The main capacitor comprises a cylinder 2 and a rod 1, and the two capacitors in series are formed by a metal sphere 4 and a washer 9 and by metal spheres 5 and 6. The capacitance between spheres 5 and 6 represents the capacitance of the void, and the axial position of sphere 6 is adjustable by a screw 12. A loop of insulated wire encircles the sphere 5 and forms the input capacitor to a high impedance voltmeter (not shown). Mica windows may be fitted in the electrode 2 so that the void equivalent gap is irradiated by any incident ultra-violet radiation, and a hole may be provided in the electrode to allow a screened probe to be brought into contact with the sphere 5 to measure its capacitance under different gap settings and different voltages applied to electrode 2. For calibrating a discharge detector, the electrode 1 is connected to a high voltage supply and electrode 2 is earthed. Measurements are made of the voltage across the gap at the extinction voltage, and it is shown how these measurements together with the known capacitances can be used to calibrate a discharge detector. The apparatus shown in Fig. 3 may be used up to slightly less than 10 KV; for higher voltages the washer 9 is replaced by a hemisphere and the space between it and the sphere 4 is filled with insulating oil, Fig. 4 (not shown). In this arrangement the sphere 4 may be adjustable axially.
Patent GB-1324609-A (GB)
Title: Extrusion die elements
IPC: B21C23/00
Filed: 1970-09-30
Abstract: 1324609 Extruding WESTERN ELECTRIC CO Inc 30 Sept 1970 [1 Oct 1969] 8378/71 Divided out of 1324606 Heading B3P The description is identical with that of Specification 1,324,606 but the claims relate to features of the die element.
Patent GB-716611-A (GB)
Title: Improvements in or relating to control mechanisms for propulsion power plants
Inventor: GODDEN THOMAS EDWARD
IPC: F02C7/00
Filed: 1951-04-11
Abstract: 716,611. Gas turbine plant. ROTOL, Ltd. June 9, 1952 [April 11, 1951], No. 8456/51. Class 110(3) [Also in Groups XXIX and XXXIII] A control mechanism for a propulsion power plant having a variable-pitch propeller driven by an engine whose power output is manually controlled by a throttle, comprises a variable-datum constantspeed unit 4 for controlling the propeller pitch, and means for introducing a control component which varies said datum in the sense to increase propeller pitch whenever the speed of opening of the throttle from any throttle setting exceeds a predetermined value. Pressure fluid, e.g. oil, is supplied to a chamber 20 and passes through the hollow stem of a pilot valve 17 which is movable by a lever 18 simultaneously with the manually controlled throttle and has lands 25, 32 controlling ports 24, 33 respectively, in a sleeve 12 attached to a piston 16. Ports 27 communicating with the space between the lands are connected to exhaust through a pipe 29. Diametrically opposed grooves 40, formed between two cylindrical parts 50, 51 forming sleeve 12, connect ports 41 controlled by land 25 to a bore 36 including a variable restriction 35 and leading to the space beneath piston 16. The datum of the constant speed unit is varied by adjusting spring 9, acting on the governor weights 3 of the unit by a rack 7 and pinion 6. The rack is carried by a sleeve 5 in which slides the rod 8 of a piston 10, the spring bearing against the rod, and the piston being held against the sleeve by pressure fluid acting through a bore 21 on the upper surface thereof. In operation when the throttle is opened to increase the engine power. output, the valve 17 is simultaneously raised to connect the space above piston 16 to exhaust, and the space beneath the piston to pressure fluid via ports 41 and passage 36. Due to the restriction 35, the piston lags behind the valve so that ports 24 are uncovered to admit pressure fluid to the underside of piston 10 whereby the piston becomes substantially pressure balanced and spring 9 expands to move the piston against a stop 31, expansion of the spring varying the datum of the unit 4 to increase the pitch of the blades. When movement of the throttle ceases, piston 16 catches up valve 17 and land 25 connects ports 24, 41 to exhaust whereupon the piston 10 moves against the sleeve 5 to recompress the spring 9. Adjustment of the restriction 35 will vary the degree of lag. If the throttle is moved to decrease the power output, the valve is lowered and immediately connects ports 24 to exhaust so that no variation of spring 9 is effected.
Patent GB-1109587-A (GB)
Title: Improvements in or relating to ionization smoke detectors
Inventor: LAMPART THOMAS
IPC: G08B17/113
Filed: 1967-02-22
Abstract: 1,109,587. Automatic fire alarms. CERBERUS A.G. 22 Feb., 1967 [22 Feb., 1966], No. 8469/67. Heading G4N. [Also in Division G1] In an ionization smoke detector, the chamber 10, Fig. 7, is connected in series with a resistor (11), Fig. 6 (not shown), or a reference ionization chamber 16, across a 60-volt supply, the voltage across the chamber being less than 20 volts. In the presence of smoke the voltage across the chamber increases, a field-effect transistor 12 is caused to conduct if its threshold voltage is exceeded, triggering a thyristor 14 which in turn energizes a relay 15 operating a fire alarm. A bias voltage Us may be applied to the thyristor 14 to control the alarm threshold.
Patent GB-400505-A (GB)
Title: A cut-out switch for exposed electric conductors
IPC: H01H31/02
Filed: 1933-03-22
Abstract: 400,505. Air-break switches. KUNZ, G., Uetikon-am-See, Z³rich, Switzerland. March 22, 1933, No. 8603. Convention date, March 23, 1932. [Class 38 (v).] A disconnecting switch for exposed conductors comprises a pair of carrier links 2, adapted to be connected to a pole or other fixture, a pair of shafts 3 connecting the ends of the links, and insulators 4 mounted on the shafts, each insulator having three grooves, the central one of which serves for attachment of the end 9 or 10 of the conductor, while the remaining grooves are engaged by saddle hoops 6 supporting contact plates 7, 8 to which the ends of the conductor are clamped at 11, 12. A switching member 14 provided with an operating ring 16 is pivoted to the plate 8, and can be moved into or out of engagement with contact clips 17, 18. One of the carrier links engages grooves in the faces of the insulator toprevent rotation of the latter. The switch is non-rotatably mounted on a carrier shaft 19 secured to a mast or other fixed member of the network.
Patent GB-1172314-A (GB)
Title: A Process and Apparatus for Intermixing Liquids more especially Metal Smelts
Inventor: MUELLER ERICH
IPC: F27D27/00
Filed: 1967-02-23
Abstract: 1,172,314. Agitating liquids. SALZGITTER HUETTENWERK A.G. 23 Feb., 1967, No. 8606/67. Heading B1C. In a method of and apparatus for mixing liquids in a vessel having a substantially vertical axis, the vessel is given, while its axis is maintained in a single vertical plane, a periodic movement the frequency of which is above but not more than 15 per cent greater than one of the natural resonance frequencies of the liquid, which is also given a rotary movement which is maintained by the periodic movement of the vessel. As described a metal melt 4 is contained in a converter 1 which is oscillated about an axis y through not more than 8 degrees to each side; rotation of the melt is initiated by an electro-magnetic field generated by a coil 6, or by asymmetry 5 of the converter cross-section. Alternatively the converter may be reciprocated in a horizontal plane.
Patent GB-231537-A (GB)
Title: Improvements in and relating to sock suspenders
IPC: A41F11/16
Filed: 1925-03-31
Abstract: 231,537. Dahms, H. March 31, 192@4. [Convention date]. Void [Published under Sect. 91 of the Act]. Sock suspenders. - A suspender of the legembracing type comprises a single band a provided with a stocking grip b at one end and a slide c at the other. The slide is in the form of a hook as shown in Fig. 2. Buckles d with pivoted gripping means serve for adjustment.
Patent GB-708478-A (GB)
Title: Automatic flame control system
IPC: F23N5/12
Filed: 1952-04-04
Abstract: 708,478. Automatic flame control systems. PHILLIPS PETROLEUM CO. April 4, 1952 [April 9, 1951], No. 8660/52. Drawings to Specification. Class 38(4) [Also in Group XXXVI] In an automatic flame control system the output of an electrical noise resistor in the presence of flame is amplified to regulate combustion. The noise voltages produced in the presence of flame are applied to an A.C. amplifier the output of which controls the flame through a servomechanism. The following arrangements are described: (a) To prevent flame impinging on the turbine blades of a turbojet engine the noise resistance is located in the combustion chamber just forward of the blades and the servomechanism controls the input to the nozzles injecting fuel into the combustion chamber, a friction clutch permitting this control to override the normal control of fuel. (b) To prevent flashback in a ram jet engine the noise resistance is located between the fuel injection nozzles and the flame holders, the servomechanism controlling either the fuel supply as at (a) above, the air supply by longitudinal movement of a spike varying the air inlet nozzle, or the position of the flame holders. (c) To prevent explosion in a thrust augmenter associated with the exhaust of a reciprocating type I.C. engine the noise resistance is located within the augmenter and the servomechanism controls the engine fuel supply as at (a) above.
Patent GB-1117056-A (GB)
Title: Improvements in and relating to vertically adjustable platforms
Inventor: REYNOLDS LEONARD
IPC: A47B57/00
Filed: 1966-02-28
Abstract: 1,117,056. Cabinets. ARMAGH EQUIPMENT Ltd. 30 May, 1967 [28 Feb., 1966], No. 8668/66. Heading A4B. A platform for a sewing machine within a cabinet has rollers 9 - - - 12 engaging opposite sides of cylindrical uprights 3 of a frame and two spiral springs 5 extend from the upper member 1 of the frame to the platform. The platform is locked in a number of vertical positions by the ends a spring urged yoke 15 engaging in recesses 4 in the uprights 3.
Patent GB-1476891-A (GB)
Title: Alkyl aryl compositions sulphonate
IPC: C09K23/12
Filed: 1975-03-03
Abstract: 1476891 Alkylaryl sulphonates EXXON RESEARCH & ENG CO 3 March 1975 [8 March 1974 17 July 1974] 8740/75 Heading C2C [Also in Division C5]  An emulsifier composition comprises salts of alkylaryl sulphonic acids and an organic and an inorganic base, wherein the molecular weights of the acids from which the salts are desired are distributed according to the function C =f(M) where C denotes concentration and M denotes molecular weight of individual acids, which function has two distinct concentration maxima at molecular weights M 1  and M 2  with M 1 <M 2  wherein there are 5-95% of M 1  acids and 95- 5% M 2  acids, M 1  is 270 to 400 and (M 2 -M 1 ) is 80 to 350. The salts may be sodium salts of alkylbenzene sulphonic acids and/or alkylorthoxylene sulphonic acids, e.g. C 8 -C 10  alkylorthoxylene sulphonic acids and C 18  to C 28  alkylbenzene sulphonic acids. The alkylaryl moiety may be the akylation product of orthoxylene with tetrapropylene, and the alkylbenzene moiety may be the alkylation product of benzene and a propylene oligomer with an average of 24 C atoms per molecule. Preferred salts are sodium, ammonium, monoethanolamine, diethanolamine and triethanolamine. The sulphonates may be prepared by mixing M 1  and M 2  alkylaryl sulphonic acids or by neutralizing a mixture of M 1  and M 2  alkylaryl sulphonic acids with a base. Alternatively a mixture of alkyl aryl aromatic hydrocarbons may be sulphonated and neutralized. Alkylbenzenes used are alkylation products of benzene and its homologues with up to 10 C atoms, e.g. toluene, oxylene and ethylbenzene. The alkyl groups are preferably branched chain alkyl groups.
Patent GB-254387-A (GB)
Title: Improvements in the production of coated or protected metal plates or other bodies
IPC: B21B1/08
Filed: 1925-04-01
Abstract: 254,387. Talbot, B. April 1, 1925. Sleepers, composite and metal. - Railroad ties are formed of metal plates having a coating of concrete, asphalt, or bitumen, such plates being provided with a keyed surface C and with plain portions E, the latter parts being for the attachment of the rails. The coating may be applied either before or after the plain surfaces have been united to form a tie. Specification 219,482. [Class 99 (ii) Pipes, tubes, &c.], is referred to.
Patent GB-416684-A (GB)
Title: Improvements in or relating to electric circuit breakers
IPC: H01H71/40
Filed: 1933-03-23
Abstract: Arc-resisting contacts for an electric circuitbreaker are made of an alloy of silver and molybdenum.
Patent GB-1018703-A (GB)
Title: Temperature control devices
Inventor: BODDEY RONALD FREDERICK
IPC: F16D65/12
Filed: 1963-03-06
Abstract: 1,018,703. Automatic temperature control systems. FOXCO INTERNATIONAL Ltd. Feb. 17, 1964 [March 6,1963], No. 8971/63. Heading G3R. A temperature detecting device comprises a solid rod 2, preferably of fused silica, transparent to furnace radiation say between 7000 and 20, 000 A passing through the furnace wall 5 and a solid state detector 1 such as a phototransistor or diode controlling the furnace through a D.C. amplifier and a transductor. The detector is mounted in a temperature controlled aluminium block 3 to minimise temperature effects. The detecter may be reverse biassed to have no effect on furnace input below a determined temperature. The rod may be mounted projecting from, flush with or below the furnace wall.
Patent GB-180811-A (GB)
Title: Improvements in jig-saw puzzles
IPC: A63F9/10
Filed: 1921-03-24
Abstract: 180,811. Brown, T. March 24, 1921. Puzzles.-A jig-saw puzzle consists of a board or base formed of parts of different thickness and cut into irregular pieces adapted to be fitted together to form a picture in relief. In the construction shown, the base d consists of a single thickness of plywood, while the parts b, c and the border f are composed of two or more layers of plywood glued to the base. The whole is then cut into irregularly-shaped pieces, as shown. Some of the pieces are constituted by representations of figures h which can be detached from the puzzle and made to stand upright on a thickened edge.
Patent GB-1064556-A (GB)
Title: Improvements in and relating to method of and apparatus for comminuting solid substances
IPC: B02C17/16
Filed: 1966-03-02
Abstract: 1,064,556. Comminuting apparatus. GEBR. E I C K H O F F MASCHINENFABRIK U, EISENGIESSEREI m.b.H. March 2, 1966 [March 2, 1965], No. 9140/66. Heading B2A. Comminuting apparatus comprises a hollow cylindrical stator 20 closed at both ends in which are inlet and outlet means 24, 28 a rotor 21 coaxially in the stator having a rotatable shaft 25 carrying whirlers on radial arms 26 secured to the shaft and arranged in at least two axially spaced apart groups 1..4 and is 16. In operation, material, e.g. limestone, is introduced into an air or gas stream and comminuted by the turbulence fields set up by the whirlers, which are made of perforated or honeycomb metal. The space 27 between the groups of whirlers serves as a quiet non-turbulene zone in which the air/gas currents may be braked by projections from the walls of the stator. The whirlers may alternatively be arranged on contra-rotating shafts.
Patent GB-714452-A (GB)
Title: Improvements in or relating to resonent-cavity magnetrons
IPC: H01J23/16
Filed: 1952-04-10
Abstract: 714,452. Magnetrons. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 10, 1952 [April 14, 1951], No. 9240/52. Class 39(1) A cavity magnetron, preferably of the type having an H-section waveguide output from one of the cavities, comprises an anode block 1, Fig. 3. and two end blocks, of which one is shown in Fig. 4, and is characterized in that the anode block is provided with a raised or a lowered edge 5 having a circular boundary which lies eccentrically with respect to the discharge space, the end blocks being of corresponding shape and the blocks being soldered only at the outer edge. The blocks may be so arranged that between the lowered edge 5 of the anode block and the corresponding edge 22 of an end block there is a space of a few hundredths of a millimetre for accommodating the solder. At its outer boundary this space may be deepened to form a groove into which a wire or a strip of solder can be secured. The ridge 4 prevents solder from running into the end spaces or into the output waveguide. Specification 714,450 is referred to.
Patent GB-199830-A (GB)
Title: Improvements relating to electric transmission for vehicles
IPC: H02P9/00
Filed: 1922-03-31
Abstract: 199,830. Tilling-Stevens Motors, Ltd., and Whitehorn, H. K. March 31, 1922. Dynamos and motors combined for transmitting power.-A power transmission system for a vehicle, comprising a generator and a motor, is provided with an auxiliary generator driven at a speed dependent on the speed of the vehicle and connected to vary the voltage of the main generator in acordance with the speed of the vehicle. The auxiliary generator may be a separate machine or an additional armature winding and commutator on the driving motor. The field-winding c of a main generator 2, Fig. 2, is connected in series with an exciter 6 driven by the motor 3. The exciter 6 is provided with a shunt field-winding a and an opposing field-winding b, the current in which is shunted from the main circuit. The exciter may also be provided with a field-winding placed across the armature of the main generator. In the modification shown in Fig. 3 the exciter 6 is provided with a field-winding a<1> placed across the armature of the main generator 2 and a series field-winding d shunted by a resistance f. To limit the generator voltage at high speeds of the vehicle the exciter may be driven by a clutch adapted to slip at a predetermined speed. The engine throttle may be controlled by the main current of the system. Specification 104,819 is referred to.
Patent GB-230298-A (GB)
Title: Improvements in or relating to curtain rods and fittings
IPC: A47H15/02
Filed: 1924-07-17
Abstract: 230,298. Mettham, G. E. July 17, 1924. Curtains, drawing and suspending. - A runner for use on a flat strip a comprises a metal plate h with its ends doubled over and having upper and lower flanged rollers k mounted in the chanrels so formed. The curtain f is attached to a stud j or eye located at the centre or at the lower end of the runner. In a modification two upper rollers of smaller diameter than the lower roller may replace the single upper roller shown. Specifications 20257/05 and 13119/08 are referred to.