baber/WOPTO huggingface dataset:
Patent GB-1016538-A (GB)
Title: Internal combustion engine ignition systems
Filed: 1964-10-29
Abstract: 1,016,538. Ignition systems. ADAM OPEL A.G. Oct. 29, 1964 [Nov. 26, 1963], No. 44128/64. Heading F1B. In a multi-cylinder engine having two or more cylinders supplied with a combustible charge by way of a common induction pipe 11, 12, the combustible charges of the respective cylinders are ignited at different instants relative to the top dead centre position of the pistons in accordance with the differences in composition of the changes respectively supplied to the cylinders. The lobes of the contact breaker cam 28 may be unequally spaced about the axis of the cam.
Patent GB-875241-A (GB)
Title: Improvements in or relating to ammunition cartridge cases
IPC: F42B5/313
Filed: 1959-12-30
Abstract: 875,241. Cartridge cases. GENSCHOW & CO. A. G., GUSTAV. Dec. 30, 1959 [Dec. 31, 1958], No. 44317/59. Class 9(1). An ammunition cartridge case 1 made of a synthetic thermoplastic material has a base section 2 and a case wall that extends rearwardly as far as the rear end of the base section and is formed with an extractor flange 4 at its rear end and has an air and water-tight sealing foil 6 welded; or stuck, on its rear end, so covering the base section and the primer 3. Specification 875,240 is referred to.
Patent GB-1392933-A (GB)
Title: Manufacture of cigarettes and the like
IPC: A24C5/18
Filed: 1971-09-24
Abstract: 1392933 Cigarette making-machines MOLINS LTD 21 Sept 1972 [24 Sept 1971] 44755/71 Heading A2C In a cigarette making-machine of the kind described with reference to Figs 12 to 18 of Specification 1305900 in which the cigarette filler stream is formed by rolling by means of an air jet a carpet of which part along one side is of particulate core material, the rolling commencing at the side consisting of core material so that the core material is incorporated along the middle of the finished filler stream, is provided with a trimmer to trim the rolled core stream before the tobacco is rolled around it. The trimmer may be controlled to maintain a constant density core stream by a pneumatic sensing device which senses the density of the stream before trimming, e.g. of the kind disclosed in Specification 929338. The rolling of the carpet is effected while it is carried on a suction drum, which replaces the air pervious band of Specification 1305900, and the feed of the carpet to the drum is so arranged that only normal or light particles are sucked onto the drum, the relatively heavy particles being removed by a winnowing action. The density of the nearly completed filler stream may also be pneumatically sensed and the result used for controlling the amount of further filler material that is subsequently added to complete the filler stream. The pneumatic sensing devices may be replaced by Beta ray devices.
Patent GB-1021948-A (GB)
Title: Improvements in or relating to the polymerization of acetylene and derivatives thereof
IPC: C08F38/00
Filed: 1964-11-04
Abstract: A mixture of linear trimers, tetramers and aromatic trimers of 1-hexyne, containing in part 1,3,5-tributylbenzene are obtained as a by-product in the polymerization of 1-hexyne in tetrahydrofuran using bis-triphenylphosphine dibromo nickel II as catalyst.  The low molecular weight compounds are isolated by distillation and consist of two fractions, one having a b.pt. of 127-134 DEG  C./2-3 mm. and the other a b.pt. of 139-158 DEG  C./2-3 mm.  A literature reference is included.ALSO:Acetylene compounds of the general formula R1-C=C-R2 wherein R1 represents hydrogen, alkyl of from 1 to 12 carbon atoms inclusive, cycloalkyl of from 5 to 6 carbon atoms inclusive, aryl-, cyano-, methyol- or iso-propylol, and R2 represents hydrogen, cyano, aryl or methylol, are polymerized at a temperature of from - 40 DEG to 200 DEG  C. inclusive, and a pressure ranging from ambient to 200 p.s.i.g. in the presence of a nickel halide trisubstituted phosphine complex having the general formula Ni(X)2.2P(R)3 wherein X represents bromine, chlorine or iodine and R represents alkyl of from 1 to 12 carbon atoms inclusive, cycloalkyl of from 5 to 6 carbon atoms inclusive, aryl or aralkyl, and wherein the Ni is divalent. Poly(2-butynediol-1,4) is claimed per se.  The poly(acetylene) products may be chlorinated.
Patent GB-1437409-A (GB)
Title: Methods of making acicular goethite powder
IPC: H01F1/11
Filed: 1973-09-26
Abstract: 1437409 Acicular goethite powder SONY CORP 26 Sept 1973 [30 Sept 1972] 45044/73 Heading C1A Acicular geothite powder, is made by (a) mixing an aqueous solution of alkali hydroxide with an aqueous solution of ferrous salt under an inert gaseous atmosphere to form a suspension of fsrric hydroxide, (b) continuously stirring the suspension under an inert gaseous atmosphere for 2 to 5 hours until a milk-white, colloidal, ferrous hydroxide suspension is formed, (c) oxidizing the suspension with an oxygen-containing gas and (d) recovering the goethite powder by separation and washing; all steps are carried out below the temperature at which ferric ion formation occurs. The goethite powder obtained may be converted to acicular maghemite powder (gamma-Fe 2 O 3 ) of high coercivity (e.g. 440-480 oersteds) by reducing with hydrogen, and then oxidizing with air at 250‹ C. Such acicular maghemite is suitable for use in making magnetic tapes.
Patent GB-1046229-A (GB)
Title: Cooling apparatus
IPC: H01J7/24
Filed: 1963-11-15
Abstract: 1,046,229. Parametric amplifiers. STANDARD TELEPHONES & CABLES Ltd. Nov. 15, 1963 [Nov. 21, 1962], No. 45233/63. Heading H3B. [Also in Division F4] The diode 3 of a paramagnetic amplifier is mounted on one end of a copper heat exchanger 8, the other end of which is in contact with a liquid coolant 13 held in a chamber 7, the latter being surrounded by a heat sink 11. The space 2 between the lower part of heat exchanger 8 and heat sink 11 serves as the cavity of the amplifier. The cooling device is supported on an annular ridge 4 formed on a step in the heat sink, the ridge serving to short-circuit any R.F. or D.C. signals in cavity 2. Liquid coolant is fed to chamber 7 by tube 6 and vapour from the chamber leaves via valve 15, passages 16, 10 and 18, and space 2, the vapour issuing from the latter being passed over diode 3 to prevent frost formation thereon. The arrangement is such that variations in ambient temperature are compensated by changes in the level of liquid 13 so that the diode temperature remains substantially constant.
Patent GB-1473194-A (GB)
Title: Positive working resist masks
IPC: G03F1/68
Filed: 1974-10-18
Abstract: 1473194 Photographic processes and masks therefrom INTERNATIONAL BUSINESS MACHINES CORP 18 Oct 1974 [19 Dec 1973] 45320/74 Headings G2C and G2X  A process for forming positive resists comprising imagewise exposing a positive-working, electrosensitive resist comprising a support and at least two layers of an organic polymer degradable by  electrons and developing to bare the support, the  correct layer dissolving in the developer in the  exposed areas at the fastest rate and each successive layer above having a decreasing dissolving rate. Specified polymers are polyalkyl methacrylates and control of development is achieved by changing the molecular weight (M.W.) or the ratio of isotactic, syndiotactic and heterotactic units of the polymer: increasing M.W. decreases the solubility. The resist is imagewise exposed and developed with methyl isobutyl ketone which causes undercutting of the lowest resist layer; a metal layer thinner than the resist layers is applied and the resist plus metal areas are removed by acetone more easily due to the undercutting to leave a metal image. Thicker metal images used for printed circuits can be produced by this method than using one resist layer. After development and before application of the metal, the resist can be baked at 100-180 C to improve adhesion to the support. Alternatively as the positive resist, a naphthoquinone diazide sulphonic ester and novolak resin, as Specification 941837, may be used. The developed resist may be uniformly coated with a metal, e.g. Al, or an opaque material and the resist with the overcoat removed to leave a mask or integrated circuit.
Patent GB-1406089-A (GB)
Title: Ball contact monitoring relay
IPC: H01H50/60
Filed: 1972-10-03
Abstract: 1406089 Electromagnetic relays W PRIESEMUTH 3 Oct 1972 [4 Get 1971] 45570/72 Heading H1N A relay having a contact bridging ball armature contact 12 has a spring 40 normally biasing the ball 12 across fixed contacts 6, 8<SP>1</SP> which are disengaged by the ball when the coil 3 is energized to move the ball into engagement with contacts 7, 8. Members 16 act as flux return members.
Patent GB-1282626-A (GB)
Title: Electrical lamp socket
IPC: H01R33/46
Filed: 1969-09-17
Abstract: 1282626 Lampholders UNITED-CARR Inc 17 Sept 1969 [27 Sept 1968] 45813/69 Heading H2E A lamp-socket comprises a metal shell 12 containing an insulating insert 14 containing contacts 56 attached to terminals 16, and an earthing pin 18. The insulating insert 14 has flat sides 20, 22 on each of which is formed an integral flange 40, 38. A slot is formed through the flange 40 to receive the earthing pin 18 which is further contained between side 20 and an insulating cover 44. The head of pin 18 is enlarged to maintain the pin in position. Each terminal 16 is formed with a metal strip at one end which is bent back on itself and inserted in one of the contact-receiving passages in the insert 14. This strip makes sliding connection with the interior of one of the contacts 56 inserted in the insert and spring biased by springs 58, the contacts being retained in the insert by the outward flaring of the ends of the contacts. The flanges 40, 38 abut a shoulder formed on the metal shell 12 (Fig. 6), the cover 44 acting as a polarizing key for insertion in a slot in this shoulder. The shell is then compressed inwardly thus causing part of the shell to abut and make connection to the top of the earthing pin 18. The insert 14 may be made of general purpose phenolic, modified polyphenyleneoxide, a polyacetal resin or nylon.
Patent GB-1086164-A (GB)
Title: Process for the preparation of 2,3-dichloro-5,6-dicyanobenzoquinone
IPC: C07C255/45
Filed: 1964-11-10
Abstract: 2,3 - Dichloro - 5,6 - dicyanobenzoquinone is prepared by treating 2,3-dicyanohydroquinone with an oxidizing agent and a source of chloride ions in an acidic aqueous medium of at least 0.5 normal strength.  A number of oxidizing agents, sources of chloride ions and acids are specified, but the preferred oxidizing agent is a "nitrogen oxide oxidizing agent," a term defined as including nitric acid, nitrogen dioxide, dinitrogen tetroxide and mixtures of nitrogen oxides.  The oxidizing agent may be added in one or several portions or it may be produced in situ, e.g. from nitric oxide and air or oxygen. Hydrochloric acid may provide both the source of chloride ions and an acid in the reaction mixture. Examples are given.
Patent GB-1062893-A (GB)
Title: Improvements relating to the synthetic testing of high voltage electric circuit-breakers
Inventor: ELLIS NORMAN SADLER
IPC: G01R31/333
Filed: 1962-12-04
Abstract: 1,062,893. Circuit breaker testings. A. REYROLLE & CO. Ltd. Nov. 29, 1963 [Dec. 4, 1962], No.45866/62. Heading G1U. A synthetic circuit breaker testing circuit of the series type is modified by including a length of transmission line in order to simulate the short line fault condition. In the basic series circuit shown, the test circuit breaker T is in series with a heavy current 50 c/s generators, a high voltage high frequency circuit including a source capacitor C s  and a restriking transient capacitor C, connected as shown or in parallel with the auxiliary circuit breaker A. When the auxiliary breaker A is closed a heavy 50 c/s current flows. Shortly before the test breaker opens to break the current the switch G is closed and a 500 c/s current flows in the breaker, reaching zero together with the main current. When the power arc clears, the correct voltage transient is imposed across the breaker by the capacitor C,. The transmission line may be short circuited at its far end and its near end used as a link in either the low frequency or high frequency circuit, or it may connect either the capacitor C r , the test circuit breaker T or the high frequency circuit L 2 , G, C s  with the rest of the circuit Figs. 2 to 13 (not shown).
Patent GB-1412629-A (GB)
Title: Shaped polyolefin compositions
IPC: C08L101/00
Filed: 1972-10-05
Abstract: 1412629 Polyolefin compositions KUREHA KAGAKU KOGYO KK 5 Oct 1972 [5 Oct 1971] 46000/72 Heading C3P Shaped compositions comprise (1) a polyolefin and (2) 50 to 90 weight per cent of an inorganic component at least the major constituent of which is calcium sulphite in the form of crystals having a smaller dimension of 1 to 30 microns and a larger dimension of 5 to 100 microns. The polyolefin may be a polymer of ethylene or propylene, or copolymer thereof with ethylene, propylene, butene, pentene, vinyl fluoride, fluorochloroethylene, vinyl acetate or an alkyl acrylate or methacrylate. The inorganic component may contain a minor proportion of gypsum, calcium carbonate, iron oxide, zinc oxide, silica sand, kieselguhr or talc. The products may be made soft and pliable by subjecting to mechanical stresses, e.g. by stretching and bending, to give leather-like porous products. Examples describe the preparation and stressing of sheets and plates of (1 and 3) polyethylene and calcium sulphite, and (2) polypropylene, calcium sulphite and calcium carbonate.
Patent GB-960728-A (GB)
Title: Memory sensing circuit
IPC: G11C11/06
Filed: 1961-12-22
Abstract: 960, 728. Magnetic core digital data storage. AMPEX CORPORATION. Dec. 22, 1961 [Dec. 27, 1960], No. 46018/61. Heading G4C. [Also in Division H3] A circuit for sensing a signal from a winding in a magnetic core memory plane comprises two transistors 40, 42 fed from a constant-current source (transistor 48) and having delay-line elements 54, 56 correctly terminated at 58, 60 in their collector circuits, so that while the steady potentials of the collectors are each 9 volts, any unbalanced pulsed signal applied to the bases will be detectable by discriminator 62. The bases are connected to the ends of a centre-tapped winding 24 linking a plane 10 of magnetic cores; writing into the matrix involves selection of a wire such as 20 (only two such wires being shown) and supplying an inhibit current to selected planes from sources such as 36. This current is applied between the ends of winding 24 so that points 28,30 are at approximately equal potentials and saturation of 40 or 42 does not take place, hence when the inhibit current ends reading can be effected rapidly by energizing another wire 20 to reset any set cores linked with it and produce a detectable signal.
Patent GB-1279310-A (GB)
Title: Method and means for rapidly charging storage batteries
IPC: H02J7/00
Filed: 1969-09-18
Abstract: 1279310 Battery-charging systems SCHICK ELECTRIC Inc 18 Sept 1969 [13 Sept 1968] 46072/69 Heading H2H A battery is charged by a series of pulses, the frequency and width of which are reduced in response to the rate of decay of the battery potential following each charging pulse. In the arrangement shown, a nickel cadmium battery 10 is charged from an A.C. source 16 by way of a transformer 12 and a thyristor 14. Gating signals for the thyristor may be provided by transistors 26, 28 which receive an input from a voltage divider 20, 22 connected across the battery 10. In operation, when the battery is in an initial discharged state, the biasing of the transistors is such that the thyristor 14 is triggered at the beginning of each appropriate half-cycle, the battery voltage falling rapidly between pulses. As the battery charges, its voltage falls less rapidly, and a point is reached where, at the end of a pulse interval, the voltage has fallen insufficiently far to allow a trigger signal to pass to the thyristor at the start of the next pulse. Thus, the firing angle of the thyristor is retarded as the battery charges, and the mean charging current is reduced. Eventually, whole pulses are omitted, and a final stage is reached where only occasional pulses are applied to maintain the battery fully charged. In order to compensate for temperature variations, the transistor 26 may be positioned close to the battery and constructed so that changes in its characteristics compensate for the smaller charging current required when the battery is at a higher temperature.
Patent GB-1193636-A (GB)
Title: An Insert for Assembly in an Aperture in a Support.
Inventor: FORD DAVID JULIAN
IPC: F16B21/06
Filed: 1966-10-14
Abstract: 1,193,636. Hand tool handles. CARR FASTENER CO. Ltd. 18 Sept., 1967 [14 Oct., 1966], No. 46075/66. Heading B4K. [Also in Divisions E2 and F2] An insert comprises two plastics members each having a hollow stem 2 with a radially outwardly extending flange 1 at one end, the stem having a groove 9 in its inner surface spaced axially from the flange and a bead 8 on its outer surface, which groove and bead engage with those on the other member when the members are positioned in an aperture in a support. The bead 8 and groove 9 are arcuate and the stem has an external longitudinal ridge 10. When identical members are inserted into a bore of a rubber castor 11 (Fig. 4) from opposite ends the beads and grooves engage, and flanges 1 abut the castor ends, ridge 10 preventing rotation of the members. A spindle is fitted closely into the insert. In Figs. 5 and 6 (not shown) each member has a bore 3a closed at one end and the members form a closure plug for an aperture in a hand saw handle.
Patent GB-1131594-A (GB)
Title: Auxiliary installation on an apparatus for measuring fuel consumption
IPC: G01F9/00
Filed: 1967-10-09
Abstract: 1,131,594. Measuring fluid flow; measuring fuel consumption. H. LIST. Oct. 9, 1967 [Oct. 28, 1966], No.46134/67. Headings G1K and G1R. An attachment for a fuel consumption meter in which fuel is sucked from a measuring bowl 1 via a drain pipe 5, collecting vessel 6 and a descending pipe 7 to an engine 8 the collecting vessel 6 has an air chamber 9 which can be evacuated by a breather pipe 10 when a fuel pump 2 is operated to replenish the bowl 1. The pump 2 when operated, draws fuel from a tank 3 via a spring-loaded valve 15 and creates a vacuum in a chamber 14 to open a spring- loaded valve 12 to evacuate air in chamber 9 through pipe 10. In an alternative arrangement the valve in the breather pipe is actuated by a solenoid connected in parallel with separate motors fuel supply and air pumps.
Patent GB-1411815-A (GB)
Title: Process and ion-exchange materials for removal of ammonia from aqueous streams
IPC: B01J45/00
Filed: 1972-10-06
Abstract: 1411815 Treating ammoniacal solutions; hydrous oxides BATTELLE DEVELOPMENT CORP 6 Oct 1972 [7 Oct 1971] 46215/72 Headings C1A C1C and ClN [Also in Divisions C7 and C3] Ammonia is removed from an aqueous stream, e.g. an effluent by contacting the stream at a pH of 9-12 with a water-insoluble ionexchange medium containing a firmly-bound metal which forms a stable ammine complex with the ammonia. The metal may be Co<SP>II</SP>, Co<SP>III</SP>, Ni<SP>II</SP>, Cu<SP>1</SP>, Cu<SP>II</SP>, Ag<SP>I</SP>, Zn<SP>II</SP>, Cd<SP>11</SP> or Hg<SP>II</SP>. The ion exchange medium may be a synthetic resin, which is loaded by contact with metal salt solution, or a hydrous oxide, e.g. of Zr, Ti, Th, Sn, Ta, Cr or Nb, which may be precipitated from a salt solution by means of an ammoniacal solution, e.g. of CuSO 4  or the preformed oxide may be treated with the ammoniacal solution, followed by removal of the bound NH 3  by means of a buffer solution of pH # 8 or of HOCl solution. Regeneration may be effected by contact with an aqueous buffer solution of pH # 8, preferably 4-7, e.g. a buffered alkali metal acid phosphate solution of pH 6À8. The resulting solution may contain NaCl and is then electrolysed to form N 2 ; or it may be treated with H 3 PO 4  or H 2 SO 4 , or with a source of Mg, e.g. MgO to form MgNH 4 PO 4 . Alternatively, acids may be used for regeneration, e.g. H 2 SO 4 , HNO 3 , H 3 PO 4  or HCl, to form the corresponding NH 4  salts. Preferably the ion-exchanger is in the form of a membrane, the ammonia solution being fed to one side and the regenerating stream to the other, continuously. Thus pulverized hydrous TiO 2  or ZrO 2  was mixed with divinylidene fluoride in dimethylacetamide, the mixture spread over a piece of cheesecloth, allowed to dry and submerged in water to complete the polymerization and produce a membrane.
Patent GB-1065160-A (GB)
Title: Railway car truck
IPC: B61F5/12
Filed: 1964-11-13
Abstract: 1,065,160. Railway vehicle undercarriages. AMSTED INDUSTRIES Inc. Nov. 13, 1964 [Dec. 5, 1963], No. 46310/64. Heading B7L. A self-aligning spring plankless railway car truck comprises spaced side frames 2, Fig. 2, supported at their ends on wheel and axle assemblies 9, Fig. 8 (not shown), the side frames having windows therein between spaced vertical columns 6, a main bolster 8 interconnecting the side frames and having its ends mounted on spring groups 13 in the windows, synthetic rubber pads 28, Fig. 3 (not shown), seated at 27 on the upper surface 24 of the bolster 8 and an auxiliary bolster 31 supported adjacent its ends on the pads for movement longitudinally of the bolster 8 and having depending side walls 33 straddling the bolster 8, the auxiliary bolster 31 having a centre plate bearing surface 34 for pivotally supporting the car body bolster 36. Movement of the bolster 31 on the bolster 8 is snubbed as described with reference to Fig. 5 (not shown). Snubbed side bearers 44 are provided between the ends of the bolster 31 and bearings 58 on the car body 37 as described with reference to Fig. 6 (not shown). The main bolster is snubbed in known manner.
Patent GB-1030577-A (GB)
Title: Mercury switch
IPC: H01H29/26
Filed: 1963-10-11
Abstract: 1,030,577. Mercury switches; mercury switch contacts. M. C. K. DE PORAY. Dec. 7, 1962 [Dec. 12, 1961], No. 46336/62. Heading H2B. A mercury switch comprises an insulating annular tube 1 in the form of a torus containing contacts such as 2a, 2b, and 4a, 4b, and a globule of mercury 13, and the tube is rotated about an axis of rotation X-X distinct from its axis of symmetry Y-Y, while being prevented from rotating about its own axis Y-Y. A pin 10 on the tube 1 is guided in a circular groove 11 in a fixed plate 12 to prevent rotation of the tube about axis Y-Y. Centrifugal force alone causes the mercury globule 13 to roll around the tube and successively engage the contacts therein. Alternatively, the tube 1 is secured to a rigid rod 15 rotated about axis X-X by a disc 19 in which its end engages such that a swash-plate motion is obtained (Fig. 3, not shown). The mercury 13 then moves under both centrifugal force and gravity around the tube 1.
Patent GB-1155058-A (GB)
Title: An Impregnation Process
Inventor: HOLLAX EBERHARD
IPC: H01M4/96
Filed: 1966-10-17
Abstract: 1,155,058. Impregnating carbon. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. 17 Oct., 1966, No. 46341/66. Heading C1A. [Also in Division H1] Carbon galvanic elements are activated by refluxing in an oxidizing medium containing a catalyst (the oxidizing action of which evolves oxygen) until an increase of the pore size to an optimum value takes place, removing the oxidizing medium, and heating to 200-1000‹ C. for 5-300 minutes in the presence of a gaseous medium to deposit or form and deposit the catalyst and to form a surface covering of oxides and/or absorbed gases on the surface of the carbon material. The oxidizing medium may be a solution of HNO 3 , KMnO 4  or Na 2 Cr 2 0 7 , the catalyst a group Ib or VIII metal or a spinel, preferably of Al and Cr or Al and Co or Al and V and the gaseous medium may be air or steam.