baber/WOPTO huggingface dataset:
Patent GB-295285-A (GB)
Title: Improvement in and relating to electric switches
IPC: H02B11/10
Filed: 1928-08-08
Abstract: 295,285. British Thomson-Houston Co., Ltd., (Assignees of Brand, F. F.). Aug. 8, 1927, [Convention date]. Transformers.-To render easy the making of tests on the insulation of a cable 16 entering an electrical apparatus such as an oilimmersed transformer 11 through a pothead 10, a switch 13 for disconnecting the cable is arranged in the pothead. The switch 13 is operated by longitudinal movement of a rod 18 to the end of which is detachably secured, as by a screw thread arrangement, a handle 22 comprising a conducting rod surrounded by insulating material. A terminal 23 on the conducting rod enables electrical connection to be readily made, through the rod 18 and switch arm 13, with the cable. A cap (not shown) may be secured over the end of the insulating bushing 20 supporting the rod 18, when the handle 22 is detached.
Patent GB-1338131-A (GB)
Title: Fuel cell assembly
IPC: H01M8/24
Filed: 1971-04-19
Abstract: 1338131 Fuel cell batteries SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 19 April 1971 [2 March 1970] 22890/71 Heading H1B In a fuel cell battery of the type comprising components such as electrodes and separators stacked in a repeating sequence between end plates, opposing peripheral sides of each component have apertures such that when stacked, channels are formed, only some of which communicate with the cell interior and each end plate has within the thickness thereof chambers connecting the communicating passages with passages that do not communicate. The communicating passages are arranged to supply the electrodes with electrolyte having dissolved or emulsified therein the appropriate reagent. The non-communicating passages provide a return path so that both inlet and outlet of a particular reagent may be located on the same side of the cell by making connections to the non-communicating passages and the chambers of the end plate. The connection to a chamber is preferably nearer to the associated non- communicating passage than the communicating passage. The end plates may be made by "lost wax" casting about fusible or soluble cores using hot or cold resins reinforced by metal plates. Alternatively the plates may be assembled from separately tooled parts.
Patent GB-1312957-A (GB)
Title: Single-phase electric motor having two rotors
IPC: H02K17/04
Filed: 1970-05-12
Abstract: 1312957 Induction motors DANFOSS AS 12 May 1970 [17 May 1969] 22925/70 Heading H2A In a single phase motor having a main and an auxiliary stator winding, 5, 6 respectively, arranged to be switched in or out of circuit together and two rotors 3, 4, arranged to rotate in opposite directions with one rotor, 3, starting up before the other, the phase difference between the stator winding currents is less than 20 degrees at start up of the first rotor and falls, but does not change sign, by the time the second rotor starts up. As shown, the rotor 3 drives a blower 11 and rotor 4 an oil pump 14. The auxiliary winding 6 is made of copper and has a greater number, e.g. at least twice the number, of turns than the main winding 5, made of aluminium. The first rotor 3 has a higher resistance than the second rotor 4, e.g. the cage 7 of rotor 3 may be made of aluminium and the cage 8 of rotor 4 of copper. A device 17 prevents rotation of rotor 4 in the same direction as rotor 3. Alternatively, the rotor 4 may drive the pump through a one-way clutch.
Patent GB-958530-A (GB)
Title: Improvements in or relating to tractors
IPC: B62D7/08
Filed: 1961-06-26
Abstract: 958,530. Tractor axles; steering. FRANK G. ROUGH CO. June 26, 1961 [Aug. 4, 1960], No. 23005/61. Headings B7D and B7H. In a tractor having a rigid axle provided with steerable wheels pivotally connected to the tractor frame, the steering mechanism is such that in the straight ahead position it is unaffected by oscillations of the axle. The tractor frame 13 terminates at its rear end in a box section 30 having a pair of depending flanges 31. A plate 39 supported by the frame 13 is provided with depending flanges 32. The axle structure 11 comprises a carrier 12 having side walls 36 of V-shape, a rear wall 37, a reinforcing plate 40 and mounting plates 38 for the axle, the carrier being pivotally connected to the tractor frame by a pin 14 mounted in the flanges 31 in the longitudinal axis of the tractor and a pin 15 mounted in the flanges 32 and having a ball joint connection in the same longitudinal axis with a plate 39 connected to the plate 40 and walls 36. The wheel hubs 34 are steerably mounted on king pins and have wheel arms 25 connected to the steering linkage and steering arms 44 connected to power assist cylinders 43. The steering mechanism comprises a gearing 17 actuated by a wheel 16 and including a valve for the appropriate actuation of the cylinders 43. The drop arm of the steering gear 17 is connected by a tie rod 18 and bell crank 19 to a transverse lever 20 having a ball joint connection in the longitudinal axis through the pin 14 with a transverse lever 22 pivotally connected by a pair of levers 23 connected to the wheel arms 25 by a pair of track rods 24. The levers 23 are mounted on pins 50 carried by forward extensions of the plates 38 to which are also connected the cylinders 43. The ball connection 21 between the levers 20 and 22 being in the axis through the pin 14, oscillations of the axle do not affect the steering when the mechanism is in the position for straight ahead motion.
Patent GB-682943-A (GB)
Title: Improvements in and relating to processes for the joining of surfaces of fibrous, leather and other articles
IPC: C08L7/02
Filed: 1951-11-19
Abstract: An adhesive of freely flowing but rapid drying consistency, for joining textile, leather and other surfaces consists of approximately 95 per cent natural centrifuged rubber latex, having at least 60 per cent by volume of rubber, carried in ammonia or other volatile ammonium compound, and approximately 5 per cent by volume of a mixture containing sodium alginate, sodium carboxymethyl-cellulose, sodium benzoate, a substance sold under the Registered Trade Mark "Nipagin," and glycerine.
Patent GB-502900-A (GB)
Title: Improvements in or relating to liquid actuated treadle electric switches
IPC: H01H35/18
Filed: 1937-08-23
Abstract: 502,900. Actuation of switches. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., CANDLER, J. E., and HOPKINS, R. W. Aug. 23, 1937, No. 23123. [Class 38 (v)] A switch is operated by the passage of a vehicle over a treadle which ejects liquid from a reservoir into a float chamber and produces movement of a float to operate contacts. The float chamber is enclosed by a flexible diaphragm which separates the contacts from the liquid and prevents the escape of liquid during transport. Mercury is forced past a ball valve 4 into a float chamber 3 where it lifts the float 2 which moves a contact carrier 8 to which it is joined by a rod passing through a flexible diaphragm 6. Contacts 7 on flexible arms 13 move between fixed contacts 14 attached to a terminal board 10 to terminals 11 on which the moving contacts 7 are connected by conducting springs 12 2 which serve to guide the float 2. The mercury can return to the reservoir through a small hole in cup 3 and a ball valve 5 after the vehicle has passed. Specification 237,473, [Class 38 (v)], is referred to.
Patent GB-185730-A (GB)
Title: Improvements in multiple blow-pipe burners
IPC: F23D14/34
Filed: 1922-08-25
Abstract: 185,730. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. fiir Elektrische Gl³hlampen). Sept. 8, 1921, [Convention date]. Blowpipe burners; multiple-jet burners with concentric air and gas passages.-The casing as of a multiple blowpipe burner is provided with a removable cover o and is divided by a partition m into gas and air chambers b, c having inlets g, l fitted with regulating cocks. The burner tubes k are secured in extensions i of channels d formed in the gas chamber b. The gas enters the channels d through nipple apertures h regulated by screws q passing through a rib p on the cover o. Air tubes e fitted with nozzles n are screwed into the partition m so as to be central in respect to the burner 'tubes k. The cover o is secured by screws r to the casing a, a packing of oiled paper being preferably interposed between their ground jointing surfaces.
Patent GB-1470835-A (GB)
Title: Laminated sheet material
IPC: B42D3/00
Filed: 1974-05-23
Abstract: 1470835 Plastics-surfaced laminated display sheet WERNER ACHILLES GLANZFOLIEN KASCHIERANSTALT 23 May 1974 [2 June 1973] 23196/74 Heading B5N A laminate from which folders, loose-leaf binders, showcards and display materials are made comprises a stiffening layer, e.g. cardboard, on which is mounted a decorative sheet material coated or laminated with an embossed polypropylene film which permits the decorative sheet to be viewed therethrough. The film may be embossed conjointly with the sheet, which may then also retain an embossed pattern, or the film may be embossed before lamination to the sheet. The embossing pattern may have a linen-like structure. The sheet may be printed matter (including newsprint), a bottle lable, a photograph or a coloured sheet. The coated or laminated sheet may be adhesively mounted on one or both faces of the stiffening layer and may be drawn around its edges.
Patent GB-1182936-A (GB)
Title: Dry Transfer Sheet.
IPC: B44C1/16
Filed: 1967-05-19
Abstract: 1,182,936. Transfers. ARTYPE Inc. 19 May, 1967 [20 May, 1966], No. 23330/67. Heading B6C. A dry transfer of the type in which an indicia beneath a light transmissive carrier is rubbed on to a receiving surface is characterized in that the solvent of the pressure-sensitive adhesive by which the indicia is adhered to the receiving surface chemically interacts with the carrier to produce a matt finish on the upper or outer surface of the transferred indicia. The transfer of Figures 1 and 2 consists of a polystyrene sheet carrier 10 and indicia 12, each comprising a portion of a release agent 14 covered by pressure-sensitive adhesive 16. The release agent 14 may comprise a nitro-cellulose ink in a butyl-cellosolve solvent, with ethylcellulose added to impart the desired viscosity to the material. A preferred pigment is an alkyd dispersion. Mica may also be incorporated in the agent 14 along with a plasticizer in the form of polymerized castor oil. The pressuresensitive adhesive may contain, as its solvent, aromatic hydrocarbon solvents having a Kauri- Butanol value in the range 80-90. In a second embodiment, the pressure-sensitive adhesive 16 is uniformly spread over the whole of the carrier sheet 10.
Patent GB-929186-A (GB)
Title: Improved chromium-tantalum alloys
IPC: C22C27/06
Filed: 1960-07-04
Abstract: The alloy of the parent Specification further includes at least 0.1% of Al and/or Si, the total amount of W, Ti, V, Nb, Mo, Al and Si not exceeding 7%.
Patent GB-1118831-A (GB)
Title: Method of and apparatus for producing springs having a high bending strength and load capacity
Inventor: FURT LUDWIG
IPC: B21D7/08
Filed: 1966-05-25
Abstract: 1,118,831. Making leaf springs; rolling; improving physical properties. WB AUTOMOBILBAU. 25 May, 1966, No. 23396/66. Headings B3A, B3M and B3V. A leaf spring 1, after heat treatment and surface grinding, is rolled between a driving roll 4 and a small working roll 13 to produce surface consolidation, and plastic deformation below the yield point of the material, the compression side of the spring being subjected to a higher rolling pressure than the tension side to produce a prestressing in the spring. Rolls 5 which are offset from one another feed the spring between the rolls 4 and 13, at the same time producing a torsional moment in the spring. The roll 13, together with its backing rolls 6, is pivotable in the plane of the axes of the rolls 4 and 13 about an axis 9.
Patent GB-751446-A (GB)
Title: Antifogging agents
IPC: G03C1/34
Filed: 1954-08-12
Abstract: Esters of the general formula <FORM:0751446/IV(a)/1> wherein R is hydrogen or an acetylthioglycollyl group and n is a positive integer, particularly from 1 to 200, are made by reacting acetylthioglycollic acid with ethylene oxide in the presence of boron trifluoride as catalyst to give the mono-esters, and by reacting an acetylthioglycollic acid halide with a polyethylene glycol in the presence of pyridine or quinoline to give the bis-esters.  Reference is made to a monoester in which n has an average value of 55 and to a bis-ester in which n has an average value of 80.  Specification 235,211, [Class 2 (iii)], is referred to.ALSO:Esters of the general formula <FORM:0751446/IV(a)/1> wherein R is hydrogen or an acetylthioglycollyl group and n is a positive integer, particularly from 1 to 200, are made by reacting acetylthioglycollic acid with ethylene oxide in the presence of boron trifluoride as catalyst to give the monoesters, and by reacting an acetylthioglycollic acid halide with a mono- or polyethylene glycol in the presence of pyridine or quinoline to give the bis-esters.  Reference is made to monoesters wherein n has an average value of 1.5 or 7 and to bis-esters wherein n is 2 or 3 or an average of 7 or 9. Specification 235,211, [Class 2 (iii)], is referred to.
Patent GB-653141-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K7/12
Filed: 1948-09-07
Abstract: 653,141. Reservoir pens. TAKAC, O. Sept. 7, 1948, No. 23500. [Class 146 (iii)] In a fountain pen in which the writing unit 1 is retractible within an outer casing 6 and provided with a closure cap 85 to seal the casing at the writing end thereof, the writing unit is secured to a cap 5 to which is secured a tubular member 7 cut away at its lower end to form a half-tube 72 adapted to fit against a second half-tube 82. The half-tube 82 forms part of a member 8 having a lower tubular portion 81 on which is pivoted the closure cap 85. A lug 87 on the cap 85 engages in a recess in a fixed sleeve 9, whereby, on turning the cap 5, the half-tube 72 imparts rotation to the member 8 and causes the closure cap 85 to uncover the end of the casing 6. The half-tube 72 has a pin 73 which engages a slot in the sleeve 9 shaped to allow limited rotation of the half-tube by the cap 5 first to operate the closure cap 85, and then to allow the writing unit 1 to be ejected from the casing by a spring 10. The spring 10 is arranged between semi-rings 74, 84 on the half-tubes ; these semirings have shallow screwthreads formed on their outer surfaces so that the spring can be mounted in operative position by a threading or screwing action. During writing, the unit 1 is supported axially solely by the spring 10. The unit 1 is readily removable simply by unscrewing the head 3 from the .cap 5.
Patent GB-260560-A (GB)
Title: Improvements in gas protective masks
IPC: A62B18/02
Filed: 1926-09-23
Abstract: 260,560. Drõger, A. B. Nov. 2, 1925, [Convention date]. Respirators.-In a gas mask a having an auxiliary mask b fitting the nose and mouth, the two masks being connected by a ring c carrying the inhaling and exhaling apparatus, the mask b is turned up at b' and attached to or formed integral with a strip of fabric d passing round the chin and attached to the edges of the mask a. The mask b may be stiffened by springs of sinuously-formed wire connecting the ring c with the edges of the mask ; these edges may be reinforced by wire insertions.
Patent GB-1260677-A (GB)
Title: Process for preparing polyesters
IPC: C08G63/00
Filed: 1969-05-08
Abstract: 1,260,677. Hydroxylated polyesters. FARBWERKE HOECHST A.G. 8 May, 1969 [8 May, 1968], No. 23561/69. Heading C3R. Polyesters containing free hydroxyl groups and having an acid number below 0À4 are prepared by polycondensation of one or more C 4 -C 10  dicarboxylic acids with one or more C 2 -C 10  dihydric alcohols, in a molar ratio of from 1 : 1À14 to 1 : 1À35 in the presence of an oxide, salt or an ester of main groups 2-5 or sub groups 2-4 of the Periodic Table. Separation of water formed during the reaction is effected by distillation in a current of inert gas under reduced pressure and this is followed by after-condensation under reduced -pressure. The after-condensation is carried out while reducing the temperature in one or more stages or gradually from a temperature not greater than 210 C. to a temperature not less than 165 C. and while reducing the pressure in one or more stages or gradually from a pressure not greater than 800 mm. Hg to a pressure not less than 1 mm. Hg. The diols used may contain 1-3 ether oxygen atoms. Specified reactants are: acids-succinic, glutaric, pimelic, suberic, azelaic, sebacic and adipic; diols-ethylene glycol, butane-diol - 1,4, hexane - diol - 1,6, 2- methylhexane - diol - 1,6, 1,4 - dimethylolcyclohexane, diethylene glycol, and mixtures of dibutylene glycol with triethylene glycol or 1,4- dimethyol cyclohexane; catalysts-n-butyl-otitanate.
Patent GB-194257-A (GB)
Title: Improvement in talking machine repeaters
IPC: G11B3/095
Filed: 1922-08-31
Abstract: 194,257. Huth, W. H. March 2, 1922, [Convention date]. Returning sound-box to starting point.-Relates to repeating-devices of the kind which rest on the record and, when the needle reaches the finishing position, turn with the record to lift the needle and return it to the starting position. The device comprises a body 1, which may be of sheet steel, formed to provide a cam-groove 10 having a hard and smooth surface on which the point of the needle may slide freely without scratching. The device is held against rotation, during the playing of a record, by a radial arm 21 engaging the side of the needle. The edge of the arm engaged by the needle is formed of soft rubber so as not to interfere with the vibrations of the needle. When the needle has moved inwards beyond the end 23 of the arm, the device turns with the record, the edge 24 slips under the needle and the converging spiral cam-groove 10 guides the needle outwards and deposits it on the record at the starting position.
Patent GB-338944-A (GB)
Title: Process for the electric purification of gas by means of rectifled alternating current of high potential
IPC: B03C3/66
Filed: 1929-08-01
Abstract: 338,944. Siemens - Schuckertwerke Akt.-Ges. April 17, 1929, [Convention date]. Gases, treating electricallally. - In the electrical purification of gases using rectified alternating current, means are provided whereby the potential between each charging half-wave, which normally remains above that required to obtain the working discharge, is caused to fall below the discharge potential. These may consist of a suitable resistance placed in parallel with the fitter. For example, in the purification of carbon dioxide, using rectified alternating current of 60.000 volts potential, the potential required to produce the working discharge is about 30,000 volts. Hitherto on normal working, the potential of the pulsating direct current falls to about 45,000 volts. By inserting a resistance of 1,000,000 ohms in parallel with the electrodes of the filter, the potential between each charging half-wave is reduced to about 20,000 volts. Resistances independent of voltage, current-limiting devices and also resistances dependent upon voltage, such as silicon' containing resistances, discharge tubes with incandescent cathodes working below the saturation point, or discharge tubes with cold cathodes, may be used. The process is applicable to current obtained from single or multi-phase alternating current.
Patent GB-777359-A (GB)
Title: Fluid flow control taps
Inventor: MILNER CHARLES ERIC
IPC: F16K1/42
Filed: 1954-08-16
Abstract: 777,359. Valves. BENTON & STONE, Ltd. July 25, 1955 [Aug. 16, 1954], No. 23739/54. Class 135. A tap consists of a rubber &c. closure member f closely fitting a cylindrical cavity e surrounding an annular seat b, and an actuating member having a flange h for engagement with a shoulder k to prevent excessive compression of the closure member. Actuation may be by cam or lever instead of by the screw thread i shown. The lower face of the closure member, which may be concave, convex, or plane as shown, has an annular groove g to form a lip which is pressed by inlet pressure against the wall of the cavity.
Patent GB-986524-A (GB)
Title: Process for the purification of waste gases arising in phthalic anhydride manufacture
IPC: C07C51/573
Filed: 1962-06-20
Abstract: Waste gases arising in phthalic anhydride manufacture, containing in general phthalic and maleic anhydrides and 1,4-naphthaquinone, are purified by washing with an aqueous solution of sodium carbonate. Phthalic and fumaric acids may be recovered by acidification of the aqueous solution.
Patent GB-1072901-A (GB)
Title: Improvements in or relating to anthraquinone dyestuffs
Inventor: TURETZKY MELVIN NORRIS
IPC: C09B5/00
Filed: 1964-06-09
Abstract: The invention comprises water-soluble cationic anthraquinone dyestuffs of the general formula <FORM:1072901/C4-C5/1> <FORM:1072901/C4-C5/2> wherein X is oxygen, sulphur, or secondary amino, Y is hydrogen, methyl, methoxy or methylthio, R1 and R2 are hydrogen or alkyl, A is hydrogen, methyl, amino, methylamino, hydroxy, carboxy or a group of the formula <FORM:1072901/C4-C5/3> n is 1 or 2 and Z is a quaternary ammonium, an isothiouronium or a ternary sulphonium group. The dyes are made by reacting compounds of the general formulae <FORM:1072901/C4-C5/4> <FORM:1072901/C4-C5/5> with a chloroacylamide and paraformaldehyde in concentrated sulphuric or polyphosphoric acid and treating the product with a tertiary amine, thiourea or an N-alkyl derivative thereof or an organic suphide.  Examples are given. The dyes dye polyacrylonitrile and modified polyacrylonitrile fibres in blue, blue-red and blue-green shades.
Patent GB-647711-A (GB)
Title: Improvements in trace blanking circuits for cathode ray oscilloscopes
IPC: G01R13/26
Filed: 1946-08-12
Abstract: 647,711. Cathode ray oscillographs. WESTERN ELECTRIC CO., Inc. Aug. 12, 1946, No. 23860. Convention date, Oct. 10, 1945. [Class 37] [Also in Group XL (b)] For a cathode-ray oscillograph in which an electron spot varying in intensity in accordance with a control voltage is moved over a screen in accordance with the whole variation of a repetitive voltage, a circuit for blanking the trace comprises means responsive to the repetitive voltage to vary the control voltage to extinguish the spot during an interval of the repetitive voltage and the responsive means is controllable so that the beginning and end of said interval may be adjustably determined. In the circuit arrangement, Fig. 4, a sawtooth controlling voltage 10 from a generator 20 is fed to a valve 30 from the cathode circuit of which is derived a similar sawtooth waveform which is delayed by a condenser 28. This output is fed to the anode 41 of a gas-filled triode 40 whose cathode 42 and grid 45 are appropriately biassed by a battery 43 and by a battery 46 in conjunction with an adjustable tap 48 on a potentiometer 47. The grid voltage determines the point B (Fig. 1) on curve 10 at which the tube 40 strikes and the bias applied by the battery 43 determines the anode voltage at which conduction in the valve 40 is cut off. During the period that the valve 40 is conducting, a positive bias is applied to the grid 51 of a pentode 50 which conducts, or becomes more conducting and provides a fall in the voltage at the anode 53. The decrease in voltage, which is constant whilst the tube 40 is conducting, is applied via condenser 61 to the control grid 62 of the cathode-ray tube 70 and is arranged to be of sufficient magnitude to extinguish the spot. As the voltage derived from the valve 30 and applied to the anode 41 of the tube 40 is delayed relative to the waveform 10, it can be arranged that the tube 40 conducts for a short period after the minimum point of the waveform 10 so that a small initial portion of the forward trace is also blanked in addition to a small final portion of the forward trace and the whole of the return movement of the trace.