baber/WOPTO huggingface dataset:
Patent GB-792314-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing apparatus
Inventor: SPENCER ROLF EDMUND
IPC: G11B5/02
Filed: 1954-12-11
Abstract: 792,314. Electric digital-data-storage apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 11, 1955 [Dec. 11, 1954], No. 35935/54. Class 106 (1). [Also in Group XXXVIII] In a magnetic recording and reproducing apparatus wherein magnetic recording and reproducing heads 4, 5 are so close to each other that whilst they respectively record and then reproduce signals with a short time delay stray magnetic field from the head 4 may cause spurious signals to be reproduced by the head 5, the recording-head 4 has energizing coils 10 ... 13 so arranged that when energized the head records signals simultaneously in two adjacent tracks A, B of a magnetic recording medium 2 and in such manner that each signal is recorded as opposite polarities on the two respective tracks whereby stray magnetic fields set up by the head tend to cancel each other, hence reducing the nett stray field at the reproducing head 5. As shown, the head 4 comprises two ring cores 6, 7 having aligned non-magnetic gaps 8, 9 and the two coils 10, 11 and 12, 13 of each core are mutually additive but the pairs of coils are in opposition; this is arranged by the series connection shown or by parallel or series/ parallel connections. The reproducing head 5 may be of similar construction. The invention is applicable to data storage apparatus in which data is stored as signal elements of two different kinds, e.g. a binary code such as described in Specification 707,634, which is referred to. Reference has been directed by the Comptroller to Specification 759,282, [Group XXXVIII].
Patent GB-1186355-A (GB)
Title: Inclined Honeycomb Seal
Inventor: WILLIS WILLIAM
IPC: F01D11/02
Filed: 1966-08-11
Abstract: 1,186,355. Making honeycomb seals. BURNLEY ENG. PRODUCTS Ltd. 27 July, 1967 [11 Aug., 1966], No. 35939/66. Heading B3A. [Also in Division F2] A method of making a honeycomb seal includes forming in strips of material half hexagon shapes, welding the formed strips together to form hexagonal cells 10, each formed strip being displaced by the same amount and in the same direction with respect to the preceding strip, and machining the faces of the mesh so formed until the full pattern of the mesh is revealed. One face of the mesh is machined by spark erosion or electrolytic grinding and is then brazed to a support member prior to the other face being machined. The component strips of the mesh are of stainless steel, nickel or Nimonic 75 (Trade Mark) and they are spot-welded together in a jig 12, which is provided with steps 13 so that each formed strip is displaced by the same amount.
Patent GB-916671-A (GB)
Title: Improvements in or relating to methods of alloying electrodes to semi-conductor bodies
IPC: H01L21/288
Filed: 1959-10-23
Abstract: 916,671. Semi-conductor devices. SIEMENS & HALSKE A.G. Oct. 23, 1959 [Oct. 24, 1958 ; Nov. 14, 1958], No. 35968/59. Classes 37 and 41. Electrode material is immersed in a liquid whilst it is alloyed to a semi-conductor body and an electric potential is applied between the body and the liquid. The liquid prevents the formation of oxides and preserves, by surface-tension effects, a sharp boundary between the alloyed and the unalloyed zone of the semi-conductor body. An indium or antimony pellet 2, Fig. 3, may be introduced into a pool of liquid 1, the composition of which is such that it wets the pellet and the semi-conductor body 3 (of e.g. germanium or silicon) and dissolves any impurities on their surfaces. Suitable liquids are molten SnCl 2 , aqueous CaCl 2 , palmitic acid or glycol. The liquid is raised to the alloying temperature before or after the pellet is introduced. The liquid may consist of a bath 1, Fig. 4, of electrolyte e.g. a mixture of 80% AlCl 3 , 18.5% NaCl and 1.5% NaF at a temperature of 500‹ to 600‹ C. A suitably masked silicon body 3 is connected to form a cathode and an aluminium body 7 is used as an anode. The bath may be raised to the eutectic temperature of the Al-Si alloy during or after electrolytic deposition. In an alternative method (Fig. 5, not shown), a pool of electrolyte is formed on the surface of the semi-conductor body and a rod electrode of e.g. aluminium is dipped into the pool. Impurities may be removed from the surface of the semi-conductor by reversal of the current before deposition commences. Rectifying junctions may be formed on both sides of the body by this method. Non-rectifying base contacts may also be formed. Reference has been directed by the Comptroller to Specification 820,289.
Patent GB-627322-A (GB)
Title: Improvements relating to targets, gliders or other objects towed through the air andto aircraft
IPC: B60T1/14
Filed: 1946-12-05
Abstract: 627,322. Aircraft brakes. LINES BROS., Ltd., and SMITH, S. O. Dec. 5, 1946, No. 36041. [Class 4] [Also in Group XXXIV] An aircraft is provided with a movable skid shoe mounted to apply frictional braking effort to a landing wheel by coming between the wheel and the ground, the shoe being held clear of the wheel during take-off by a mechanism which allows it to move into an operative position in contact with the wheel in consequence either of the aircraft becoming airborne or of the aircraft landing. A winged target or pilotless aircraft is described which is braked on landing by a ground contacting shoe 12, movable from the inoperative position shown to a braking position between the wheel 3 and the ground and held inoperative against a bracket 17 by cables 9 reeled on a spring- loaded bobbin 7 and held out of contact with the wheel by'the collapsing arms 21. Springs 19 bring shoe 12 into contact with' wheel 3 when the arms 21 are collapsed by a cable 79, connected through a lost motion connection 116 to a Bowden control 26 actuated by a ground contact arm 60 through a mechanism 68 and a time delay device 69 which are identical to those described in Specification 618,106. In another embodiment, Fig. 4 (not shown), the arms 21 are replaced by a fixed arm, downwardly hooked to engage shoe 12, which is released by a plunger-type catch operated by the cable 79. The shoe 12 is provided on its wheel contacting surface with a heatresisting insert 66 and on its ground contacting surface with a renewable pad 13. In a further embodiment, Fig. 6 (not shown), adapted for use on catapulted aircraft, the release mechanism is similar to that described in Specification 618,485. except that the ground contacting arm 60 may be moved into its operating position by said release mechanism. The ground contacting arm 60 may also operate the take-off flaps and/or a towing cable release gear as described in Specifications 618,106 or 618,485.
Patent GB-492011-A (GB)
Title: Improvements in or relating to directional radio receivers
IPC: G01S3/14
Filed: 1937-12-30
Abstract: 492,011. Directive wireless signalling. SOC. FRANCAISE RADIO-ELECTRIQUE. Dec. 30, 1937, No. 36155. Convention date, Dec. 30, 1936. Addition to 470,060. [Class 40 (v)] The low-frequency output voltage from a direction-finder of the type described in the parent Specification is applied to a cathoderay indicator to give a straight-line trace, the inclination of which to a datum-line gives the direction of the incoming signals. The rectified aerial currents in the input transformer T are applied to two pairs of rectifiers V1, V2 and V3, V4, respectively, where they are combined with two locally-generated " squaretopped " oscillations U1, U2, which are in quadrature. The resulting potentials developed across the two condensers C1 in each of the circuits are applied in push-pull, through amplifiers El, E2 and E3, E4, respectively, to the deflecting plates XX1 and YY1 of the cathode-ray tube. A valve M, which is excited by local oscillations V, supplies a modulating- voltage, also preferably flat-topped or "stepped " which alternately cuts-off the output currents from the amplifiers E1 ... E4, so as to restrict the fluorescent trace to the middle or straightline part of its traverse. The arrangement allows differences in the working characteristics of the amplifiers to be compensated. Quadrantal error can also be corrected by adjusting the position of the frame aerials, so that in the direction of zero error no resulting potential appears across the plates XX1 or YY1. The frame aerials may be replaced by a spaced arrangement of the Adcock type.
Patent GB-522689-A (GB)
Title: Improvements relating to machinery guards
IPC: F16P3/00
Filed: 1938-12-13
Abstract: 522,689. Machinery guards. UDAL, J. D. Dec. 13, 1938, No. 36278. [Class 80 (iv)] A guard a is adapted to be moved upwardly and outwardly as the press tool e descends. The guard, in the form of a light wire-covered frame, has at its bottom corners rollers g adapted to slide in channel-shaped guides f secured to the lower ends of a pair of vertical or substantially vertical arms h suspended from a cross-bar i mounted in bearings j on brackets k secured to the press. The arms h are adjustable, to vary the position of the guard relative to the press, by a slotted link m bolt o and projection p. To each of the upper corners of the guard a is connected a bell-crank lever q, the other end of the lever being pivoted to the arm h or other stationary part. The elbow of each bell-crank lever is connected by a link r to a lever s adjustably connected at u, v to a lever t itself connected by a link x to the plunger or other movable part. The service position of the guard is shown at a'. To fill the gap left, when in its service position, between the bottom of the guard and the floor l, a similar guard y fixed to the arms h by spacers z may be provided.
Patent GB-372283-A (GB)
Title: Improved means for clearing the discharge nozzles of sewage distribution or like apparatus
IPC: E03F9/00
Filed: 1930-12-03
Abstract: 372,283. Sewage distributers. LLOYD, P. G., 56, Lower Ham Road, Kingston-on- Thames. Dec. 3, 1930, No. 36432. [Class 69 (iii).] The nozzles of rotary sewage distributers are cleaned by causing a recoil wave of pressure to pass along the arms. One end of a distributer arm a, Fig. 5, is closed by a butterfly valve c which is opened to allow the pipe to be flushed and 'then suddenly closed to cause a wave of pressure by which the distributing nozzles are cleared. The valve may be connected by arms d to a roller g, Fig. 6, which engages an inclined rail by which the valve is opened and then suddenly closed by the roller falling over the vertical end of the track j.
Patent GB-944493-A (GB)
Title: Method of producing a high-grade mass production steel
IPC: C21C7/10
Filed: 1961-10-11
Abstract: Steel is refined in a vessel with air and/or oxygen wherein the carbon monoxide evolved is burnt in the vessel to superheat the melt to a temperature, e.g. 1720  DEG C., sufficiently above the liquidus line to permit subsequent vacuum treatment of the melt at this temperature followed by casting without impairing casting properties of the melt and without further heating.  Preferably the melt is superheated, i.e. raised above the liquidus temperature line, by 100 to 200  DEG C.  The vessel used may be a rotary furnace or converter, equipped with one blowing nozzle projecting under the melt surface and another above, and comprising a double refractory lining (see Division F4).
Patent GB-445216-A (GB)
Title: Improvements in machines for the surface marking or treatment of bricks or the like when in the plastic state
IPC: B28B11/06
Filed: 1934-12-21
Abstract: 445,216. Bricks &c. SUTCLIFFE, H., 27, Marquis Avenue, and HEARTH, G., 6, Marquis Avenue, Bury, Lancashire. Dec. 21, 1934, No. 36673. [Class 87 (i)] [See also Group V] To mark the surfaces of bricks, the clay column, while in the plastic state, is engaged by chains or like flexible elements secured to one or more rollers, rotated so that the chains are thrown out by centrifugal force. The clay column a is traversed through the machine on an endless conveyer b. Prior to reaching the marking rollers, sand is applied to the exposed faces of the column from a bin t with three delivery passages u, v, w. The side passages deliver to casings x having rubber jointing pieces z for ensuring proper delivery to the column, the casings housing driven feed worms y. The central passage has a vertically slidable delivery portion 10 urged downwardly by springs 12 and provided with a roller 13 engaging the column. Driven rollers 25, 26 at the sides of the column carry chains 27 of varying lengths. A slide 14 reciprocated by an eccentric 16 and lever 18 carries a roller 20 similarly. provided with chains and having a chain wheel gearing with a driven chain 21. According to the Provisional Specification, the sand may be thrown on to the column by centrifugal devices.
Patent GB-1103984-A (GB)
Title: 3,5-seco-a-norandrostan-3-oic acids
IPC: C07C309/65
Filed: 1965-03-29
Abstract: Novel 3,5-seco-A-nor-androstan-3-oic acids are obtained by the oxidative ring opening, e.g. with ozone, of ring A of a 17a -(lower alkyl)-17b -hydroxyandrostan-4-en-3-one.
Patent GB-1495685-A (GB)
Title: Incinerator for refuse
IPC: F23G5/14
Filed: 1975-09-05
Abstract: 1495685 Incinerators KERNFORSCHUNGSANLAGE JULICH GmbH 5 Sept 1975 [14 Sept 1974] 36762/75 Heading F4B An incinerator, particularly for radio-active wastes, comprises a primary combustion chamber 1 having a grate 4, from which the gases pass downwardly to a secondary combustion chamber 2, at the bottom of which solid residues collect, a flue outlet 8 in an outer wall of the secondary combustion chamber and an internal baffle wall 9 guiding gases entering the secondary combustion chamber towards the bottom. An additional baffle 11 below the grate 4 constricts the gas flow and produces a whirl. Air for combustion from a heater 14 is fed to a ring main 12 supplying air through a double wall to the top of the primary combustion chamber 1 and through passages within the baffle wall 9 to just below the baffle 11. A charge shaft 17 has a slide valve 20 and is connected through a non-return valve 19 to a charge box 16. The primary combustion chamber has a pressure relief outlet and valve 21, 22. The secondary combustion chamber has walls 7 formed of perforated ceramic plates against which are arranged filter mats 3 of ceramic fibre on which ash collects. The ash layer tends to flake off the mats, which later begin to disintegrate and can be broken up through ports 23 to fall to dumping grate 5 forming the bottom of the secondary combustion chamber. The walls 7 may be formed of metal mesh or lattice work and the volume of the secondary combustion chamber is not less than that of the primary combustion chamber. The primary combustion chamber grate 4 is in two parts, with interengaging teeth and mounted to pivot on parallel axis, to enable access to the after combustion chamber from above.
Patent GB-1354730-A (GB)
Title: Process for producing trialkoxy-aluminium compounds
IPC: C07C29/54
Filed: 1971-08-05
Abstract: 1354730 Oxidation of alkylaluminiums SUMITOMO CHEMICAL CO Ltd 5 Aug 1971 [18 Aug 1970] 36847/71 Heading C2C [Also in Division C5] A trialkoxyaluminium is made by contacting a film of a trialkylaluminium or dialkylalkoxyaluminium compound with a molecular oxygencontaining gas. The products may be hydrolysed to alcohols which may be used as solvents, plasticizers, detergents and lubricants.
Patent GB-761039-A (GB)
Title: Improvements relating to waving or curling the hair
IPC: A45D2/42
Filed: 1954-12-21
Abstract: 761,039. Hair waving appliances. ROSCH, G. Dec. 21, 1954 [March 30, 1954], No. 36924/54. Class 131. A wave shaper and curler for producing curls and waves in a tress of hair comprises a clamping bar of arcuate cross-section pivoted to one end of a cylindrical member and fitting thereagainst, diametrically opposite rows of cylindrical spines equally spaced and having conical free ends being provided on the bar or on the member, and retaining means for a lock of hair wound between the spines. As shown, two rows of spines 2, 3 are provided on the member 1, the arcuate-section bar 4 being pivoted at 5 and a rubber retaining loop 6 being attached near the holder 8 and engageable in a notch 7. In use, the point of a tress of hair impregnated with a cold wave solution is clamped between the member and the bar and the hair wound, for a certain distance, in over-lapping coils to form curls. At the part where waves are desired the curler is moved axially to the right or left in accordance with the inclination required, the hair being held between the spines, and the curler rotated. Subsequent waves are formed by axial movements of the curler, to opposite sides, the curler being rotated between each axial movement. The depth of the wave depends on the diameter of the curler used, three sizes being provided. Fixing liquid is applied to the coiled tress and later the hair is unwound and shampooed. In a modification the spines are provided on the clamping bar.
Patent GB-1443732-A (GB)
Title: Method of producing an article of fibre-reinforced polyurethane  foam
IPC: B29C44/02
Filed: 1973-08-03
Abstract: 1443732 Moulding fibre reinforced polyurethane foam articles SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 3 Aug 1973 36945/73 Heading B5A A method of producing a fibre reinforced polyurethane foam article comprises forming a fleecy layer of non-woven fibrous material on a support, and applying to the outer surface of the layer a liquid polyurethane foamable composition which sets before the composition has completely penetrated the fibrous layer. The method may be used to produce pipes having an internal resin free fibrous surface and an outer foam layer by wrapping the fleece around a mandrel and spraying the polyurethane composition on to the fleece whilst rotating the mandrel. Alternatively a plate having fibrous layers on both sides may be produced by injecting the foamable composition in between two supported fibrous layers. Suitable fibres are polypropylene, polyethylene or glass.
Patent GB-1085481-A (GB)
Title: Improvements in or relating to sizing machines
Inventor: NORTON JOHN
IPC: D06B23/26
Filed: 1963-09-20
Abstract: 1,085,481. Automatic moisture control. LEESONA HOLT Ltd. Sept. 11, 1964 [Sept. 20, 1963], No. 37015/63. Heading G3R. [Also in Division D1] In a sizing machine hygrometers 16 sense the amount of liquid on the yams leaving the squeeze rollers 12, 13 associated with the sizing bath 10. The signals from hygrometers 16 are fed to a comparator 19 to be compared with a set value and if the speed of the yam through the squeeze rollers varies then the resulting variation in the quantity of size on the yam leaving the squeeze rollers alters the hygrometer signal and a signal is emitted from comparator 19 to vary through an electric motor 21 and hydraulic rams 36, 37, the squeeze roller pressure and regulate the quantity of size in the yam. Further hygrometers 16a sense the yam after it has passed over drying drums 22 and the speed of the machine is varied in accordance with the variations in signals from hygrometers 16a to change the drying time on the drums and thus regulate the final moisture content of the yam.
Patent GB-1456354-A (GB)
Title: Process for the preparation of carnitine hydrochloride
IPC: C07C229/22
Filed: 1975-09-09
Abstract: 1456354 Carnitine hydrochloride LONZA Ltd 9 Sept 1975 [25 Sept 1974 (2)] 37042/75 Heading C2 Carnitine hydrochloride is made by (a) reacting an enolized gamma-haloacetic acid alkyl ester with trimethylamine to give a (3-carboalkoxy - 2 - oxopropyl) trimethyl ammonium halide, (b) hydrogenating the latter to a carnitine alkyl ester and (c) hydrolysing the ester with aqueous hydrochloric acid to give carnitine hydrochloride. In a modification the product of step (a) is obtained by reacting the gammahaloacetic acid alkyl ester with an alcoholate and then reacting the product with trimethylamine.
Patent GB-448712-A (GB)
Title: Improvements in the purification of aqueous liquids from phenols and contingently other accompanying substances
IPC: C02F1/26
Filed: 1934-12-27
Abstract: Aqueous liquids containing phenols, with or without other substances, are treated with a solid adsorbent such as active carbon, from which the adsorbed substances, including the phenols, are afterwards extracted by means of liquid ammonia.  In detail, the procedure may be as follows.  The aqueous liquid is passed upwardly through two or more adsorption chambers in series, and when the adsorbent in the first chamber is sufficiently charged the feed of liquid thereto is stopped and the liquid in the chamber is displaced.  This displacement may be effected with a gas such as nitrogen or hydrogen, but is preferably effected with gaseous ammonia, in which event the last portion of the liquid displaced from the chamber (solution a) contains dissolved ammonia, and may be collected separately and worked up as described below.  The moist adsorbent is then treated with liquid ammonia until the liquid leaving the chamber is free from extracted substances; this treatment may be effected at atmospheric or raised pressure and a corresponding temperature, but is preferably effected at atmospheric temperature or at the adsorption temperature. Ammonia is then expelled from the adsorption chamber, preferably by warming and passing steam into the chamber; the aqueous ammonia recovered (solution b) may be worked up as described below.  The adsorbent is then ready for use again.  The liquid ammonia containing extracted substances and water from the moist adsorbent may be evaporated at atmospheric pressure, but is preferably distilled under pressure in two stages; in the first stage, the bulk of the liquid ammonia is recovered as such by distillation at a slightly raised temperature and 10--15 atm. pressure without rectification; the residue (residue c) may then be freed from ammonia by evaporation, or it may be distilled at 150--180 DEG  C. and 10--15 atm. pressure, with rectification, to yield a distillate of liquid ammonia and a residue of water and extracted substances; solutions (a) and (b) may be added to residue (c) before the latter is distilled.  The process is particularly applicable to aqueous liquids containing phenols obtained in the destructive hydrogenation or low-temperature carbonization of carbonaceous materials.  Examples are given in which the treatment of such liquids by the process of the invention is compared with the known process in which benzene is used as the extracting agent instead of liquid ammonia.
Patent GB-820381-A (GB)
Title: Improvements relating to the manufacture of smokeless fuel
IPC: C10B57/04
Filed: 1956-12-04
Abstract: 820,381. Materials for making coke. SOC. DE TECHNIQUE INDUSTRIELLE. Dec. 4, 1956 [Dec. 9, 1955], No. 37074/56. Class 55 (2). Coke is manufactured by mixing coal having poor coking properties, e.g. a high volatile non-caking coal, with finely-divided pitch or tar and coking the mixture in an oven at 700- 800‹ C. without forming it into briquettes. The mixture may also include semi-coke In an example a mixture to be coked comprised 70% crushed and preferably dry coal having poor coking properties, 25% semi-coke containing 15% volatile matter; 5% finelydivided pitch or 5% heavy coal tar pitch.
Patent GB-1029345-A (GB)
Title: Power supply arrangements for television receivers
IPC: H02M7/06
Filed: 1964-09-11
Abstract: 1,029,345. Valve supply arrangements. STANDARD TELEPHONES & CABLES Ltd. Sept. 11, 1964, No. 37247/64. Heading H3W. In a dual voltage circuit arrangement supplying series heaters 5 in a television receiver at the higher voltage a rectifier 6 is connected in series with the heaters which are supplied directly at the lower voltage, and the rectifier is utilized in a voltage doubling circuit 6, 8, 9, 10. The circuit is changed from one voltage to the other by a reversible plug arrangement 1<SP>1</SP>-5<SP>1</SP>. If the heaters 5 require more than half of the higher voltage, a capacitor may be connected in parallel with the heaters.