baber/WOPTO huggingface dataset:
Patent GB-839724-A (GB)
Title: Winch safety device
IPC: H01H3/16
Filed: 1957-12-16
Abstract: 839,724. Mechanical switches, without quickaction. NATIONAL ACME CO. Dec. 16, 1957, No. 39038/57. Class 38 (5). [Also in Group XXX] A safety device (Fig. 3), for preventing simultaneous operation of the hand drive and motor drive of a ship's winch includes lever 7, the shaft 21 of which carries insulated contacts 5, 6 which co-operate with fixed contacts 3, 4, the leads to the latter being led in at 20 and secured at 18. When lever 7 is swung over, contacts 5, 6 engage contacts 3, 4 to switch-in the electric motor whilst guard 8 on the end of lever 7 obstructs the squared end of the winch shaft. When lever 7 is swung back to the position shown, the motor circuit is broken and the squared end may be driven by a hand crank. The lever may be retained in its end position by means of a pin passing through appropriate holes in the lever and in the switch casing. In the second embodiment (Fig. 6), rotation of lever 72 about axis 102 causes contacts 70, 71 to be withdrawn from fixed contacts 68, 69 by engagement of pin 103 carried by the lever in and with slot 98 formed in shaft 89 which carries contacts 70, 71.
Patent GB-1278676-A (GB)
Title: Thermally stabilizing acrylonitrile polymer filamentary materials and carbonizing the products obtained
IPC: D01F9/22
Filed: 1969-08-05
Abstract: 1278676 Polyacrylonitrile fibres CELANESE CORP 5 Aug 1969 [5 Aug 1968] 39107/69 Heading B5B [Also in Division C1] Filamentary material consisting of an acrylic polymer containing at least 95 mole per cent of recurring acrylonitrile units, drawn at a sufficiently high draw ratio to endow it with a tenacity of at least 5 g.p.d., and retaining its filamentary configuration for at least three minutes on heating at 300‹ C. is thermally stabilized by continuously passing it through an oxygen-containing atmosphere in a zone maintained at a temperature of at least 260‹ C. at a rate such that the issuing material has a chemically combined oxygen content of at least 7% still retains its filamentary configuration, does not burn in a match flame and is capable of undergoing carbonization. The filamentary starting material may have been drawn to such an extent as to impart to its single filament tenacity of 7À5 to 8 g.p.d., and it may consist of an acrylonitrile homopolymer or a copolymer of at least 99 mole per cent of acrylonitrile units and up to 1 mole per cent of one or more monoethylenically unsaturated comonomer units such as styrene, ethyl acrylate, ethyl methacrylate, vinyl acetate, vinyl chloride, vinylidene chloride and vinyl pyridene. The oxygen-containing atmosphere used may be air. The filamentary material may be a multifilament yarn. The material may be heated to from 260‹ to 290‹ C. for a period of from 8 to 70 minutes. The material may be heated to from 260‹ to 290‹ C. for a total residence time of at least 3 minutes, preferably at least 5 minutes, and may subsequently be passed through a zone provided with an oxygencontaining atmosphere in which the temperature progressively increases in the direction of travel of the material to between 330‹ and 400‹ C. The thermally stabilized material may be heated at a temperature of from 900‹ to 3000‹ C. in an inert atmosphere until a carbonized product is formed. Alternatively the material may be heated at a temperature of from 1500‹ to 3000‹ C. in an inert atmosphere until substantial graphitization of the material has occurred. The thermal stabilization zone may be maintained at a temperature of from 260‹ C. up to about 10‹ C. below the temperature at which the starting material shows signs of losing its filmentary configuration. If desired, the material may be heated initially in an oxygen-containing atmosphere at a temperature somewhat below 260‹ C., e.g. 240‹ C., for a brief period provided that the temperature is increased to at least 260‹ C. for a substantial part of the stabilization period.
Patent GB-978960-A (GB)
Title: A clamp or stop for rails
Inventor: GODSELL ALBERT VICTOR
IPC: B61K5/06
Filed: 1962-10-17
Abstract: 978,960. Rail stops. S. W. M. MACHINERY Ltd. Oct. 15, 1963 [Oct. 17, 1962], No. 39225/62. Heading B7L. A wheel stop for rail vehicles, comprises two parts 10, 11, each having a jaw 15 with a chamfered surface 16 to engage a rail head 13; a stem 18 on part 10 projects with clearance through an opening 19 in part 11 and the two parts are forced into clamping engagement by inserting a wedge 21 into an opening 20 in stem 18, the wedge being attached by a chain 24 to stem 18. Part 11 has inclined surfaces 26 to engage with a wheel of an advancing truck which will be derailed by the stop unless moving slowly.
Patent GB-1247451-A (GB)
Title: Process for converting urethanes to isocyanates
Inventor: SYDOR WALTER JOSEPH
IPC: C07C265/12
Filed: 1969-08-05
Abstract: 1,247,451. Isocyanates. AMERICAN CYANAMID CO. 5 Aug., 1969 [6 Sept., 1968], No. 39231/69. Heading C2C. Organic isocyanates are obtained by heating urethanes of the formula R(NHCOOR<SP>1</SP>) x ; wherein R is an optionally substituted saturated aliphatic or cycloaliphatic radical containing up to 18 carbon atoms, an aryl or aralkyl radical or an alkaryl radical containing less than three rings, R<SP>1</SP> is an optionally substituted saturated aliphatic or cycloaliphatic radical containing up to 6 carbon atoms, an aryl radical or an alkaryl radical containing less than three rings, and x is 1, 2 or 3, each R<SP>1</SP> being the same or different when x is 2 or 3; at 400‹ to 600‹ C. in the presence of a Lewis acid, the vapour produced being condensed to recover the isocyanate product. When x is 2 or 3 isocyanates containing unreacted urethane groups may be present in the reaction products.
Patent GB-1328595-A (GB)
Title: Carrier frequency telecommunications systems
IPC: H04B7/12
Filed: 1971-08-23
Abstract: 1328595 Radio signalling SIEMENS AG 23 Aug 1971 [25 Aug 1970] 39360/71 Heading H4L In a carrier frequency telecommunication system in which a plurality of different frequency carrier waves are available and means are provided at each station for selecting the carrier wave giving the best results, the receiver of each station in its inoperative condition scans the frequency positions of the carrier in a predetermined sequence and the transmitter at the calling station automatically transmits a synchronizing signal at each frequency position in the same sequence which is followed by a test signal which may contain the address of the called station at each frequency position in the sequence. When the receiver at the called station detects the sync. signal at one of the frequency positions it is automatically synchronized and it then analyses the sequence of test signals to determine the quality at the respective frequency positions. When the best carrier wave frequency has been determined the called station transmits back a test signal at each frequency position in the sequence which includes identification of the frequency providing the best signal, and this frequency is then used by the calling station transmitter. At the calling station the test signals are similarly analysed to determine the best frequency for the return direction and this information is automatically transmitted to the called station. During normal transmission, if the quality of the transmission goes below a predetermined limit, the transmission is interrupted and hunting for the best frequency position commences. The quality of the transmission may be measured by the means disclosed in Specification 1,328,594.
Patent GB-917922-A (GB)
Title: A process for the manufacture of a hydraulic binding agent
IPC: C04B28/14
Filed: 1959-02-21
Abstract: A binder which after admixing a liquid becomes petrified has an 503 content not exceeding 300 mg./l and has a hydrate as main ingredient, is obtained by mixing dry calcium sulphate hemi-hydrate plaster with at least 5% of a dry cement containing a metal oxide Me2O3, and at least 0,5% of kaolin or clay.
Patent GB-1088766-A (GB)
Title: Improvements in and relating to radio receiving apparatus
Inventor: NEAVE DAVID PETER BRENNER
IPC: H03J1/04
Filed: 1964-09-28
Abstract: 1,088,766. Variable capacitors. RANK BUSH MURPHY Ltd. Sept. 28, 1965 [Sept. 28, 1964], No. 39467/64. Heading H1M. [Also in Division H3] The Specification describes a tuning capacitor for use in a radio receiver to provide bandspreading over a selected terminal portion of the medium frequency band of the receiver. The fixed plates 3 of the capacitor are provided with extensions 4 which are arranged to add an increasing amount of capacitance at one end of the tuning capacitor range.
Patent GB-808619-A (GB)
Title: Improvements in or relating to agricultural machines for use as seed planters and/or fertilizer distributors
IPC: A01C7/16
Filed: 1957-12-20
Abstract: 808,619. Seed planters ; fertilizer distributers. STOKLAND, S. Dec. 20, 1957, No. 39658/57. Addition to 788,214. Class 6(1). The agricultural machine as claimed in the parent Specification is provided with a rotatable cup 4, the upper edge of which is dispersed below the mouths of the ports 7 and a stationary guide 10 is provided to guide material ejected from the cup. In a modification the upper edge of the cup is situated above the mouths of the ports and openings are provided in the cup so that material can pass out to the ports.
Patent GB-1317383-A (GB)
Title: Method of inertia friction welding
IPC: B23K20/12
Filed: 1971-08-24
Abstract: 1317383 Welding by pressure CATERPILLAR TRACTOR CO 24 Aug 1971 [25 Aug 1970] 39682/71 Heading B3R [Also in Division B5] In inertia friction welding two relatively rotatable workpieces, the workpieces are axially engaged with sufficient force to permit their subsequent friction welding, one of the workpieces is then connected, for rotation relative to the other workpiece, to a rotating inertia mass and inertial energy is transferred from the mass to the one workpiece in sufficient quantity and at sufficient relative speed of rotation of the one workpiece relative to the other to friction weld the workpieces. A workpiece 13 is secured in a non-rotatable chuck 16 carried on a slidable tailstock 17 and a workpiece 12 is secured in a rotatable chuck 14 carried in a head-stock 11 on a shaft 21 connectable by a clutch 27 to a variable inertia mass 23 in turn connectable by a clutch 26 to a motor 22. The tailstock 17 is then moved towards the head-stock 11 by a cylinder device 18 to forcibly engage the workpieces. With the clutch 26 engaged and clutch 27 disengaged the motor 22 brings the inertia mass 23 up to a desired speed, either before or after engagement of the workpieces and then, with the workpieces forcibly engaged, the clutch 26 is disengaged and the clutch 27 is engaged to rotate the workpiece 12. The speed and mass of the inertia mass may be sufficient to provide the energy for welding or preferably may be greater than that necessary, in which case, the clutch 27 is disengaged after sufficient energy has been provided when the mass may be accelerated up to its preselected speed by engaging the clutch 26 for commencing a new weld cycle.
Patent GB-1057250-A (GB)
Title: P-n junction device
IPC: H01L21/479
Filed: 1964-09-30
Abstract: 1,057,250. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 30, 1964 [Oct. 14, 1963], No. 39740/64. Heading H1K. A device comprises a crystalline body of semi-metal (i.e. slight overlap between conduction and valance bands) housing a PN junction. Bismuth is quoted as one suitable material and is said to have an overlap between valance and conduction bands of 0À02 eV and equal electron and hole densities of 4 x 10<SP>17</SP> per cm<SP>3</SP>. Materials of Group 4 (e.g. tin) may be used as acceptors to raise the hole density for example up to 8 x 10<SP>17</SP>, and materials of Group 6 such as tellurium and selenium as donors. Fig. 4 shows a rectifier device comprising a PN junction obtained by crystal pulling and doping with acceptors and donors; an NPN zone arrangement is also described wherein minority carrier injection takes place to provide a transistor; such a device has a very high frequency cut off owing to the long mean free path of the carriers. Energy diagrams are used to explain that at normal temperatures the PN junction has no effect and the device operates as an ohmic element; at low temperatures, however, rectifying action is present and the junction offers low or high resistivity according to the direction of the bias. Arsenic or antimony may be used in place of bismuth.
Patent GB-892920-A (GB)
Title: Improvements relating to the manufacture of rubber soled footwear
IPC: A43B3/12
Filed: 1960-11-18
Abstract: 892,920. Moulding footwear. NOVA, A., NOVA, R., and NOVA, O., [trading as NOVA, A. [firm of]]. Nov. 18, 1960 [Aug. 8, 1960], No. 39783/60. Class 87(2) [Also in Group VII] A process for the manufacture of footwear, particularly sandals, having a rubber sole 6 and a tray-shaped insole 2 is characterised in that the insole 2 is shaped by lasting the upperinsole unit 1, 2 and placing it over the hollow of a mould, comprising a frame 4 and a sealing lip 4a provided with an abutment surface to facilitate upturning of the margin of the lasted insole. A rubber mix 6 is fed in the mould hollow which may incorporate a felt filler 7. The mould may comprise a vertically movable bottom member 5 to compress the mix and form the sole during vulcanisation.
Patent GB-876941-A (GB)
Title: 3-pyrrolidyl ethanols
Filed: 1959-11-24
Abstract: The invention comprises compounds of the formula <FORM:0876941/IV (b)/1> wherein R1 is a phenyl, tolyl or cyclohexyl radical and R2 is a C1-6 alkyl radical, and acid addition salts thereof, and the preparation thereof by reacting an appropriate 1-C1-6-alkyl-3-pyrrolidylmethyl halide with magnesium and reacting the Grignard compound thus formed with an appropriate ketone and hydrolysing the resultant Grignard complex and, if desired, reducing a phenyl radical to a cyclohexyl radical and, if desired, converting any of the products into their acid addition salts.  The products relieve muscular tremors and convulsive disorders in animals. Specification 799,030 is referred to.
Patent GB-1131869-A (GB)
Title: Improvements in or relating to fastening clips for packing cases
IPC: F16B2/24
Filed: 1967-08-31
Abstract: 1,131,869. Fastening lids. R. W. E. MOSSE. 31 Aug., 1967, No. 39974/67. Heading B8P. [Also in Division E2] A clip for securing the lid of a packing case comprises a resilient clip member 7 of L- shape connected to a hinge member 4 secured to the lid and having a projection 8 which engages under a batten 1b secured to a side wall 1 of the packing case. The clip is made of resilient wire. In a recess 10 between the top of the batten and the undersurface of the lid is a strip 11 of plastics or wood secured to the lid. Clips are secured at intervals round the periphery of the lid.
Patent GB-933866-A (GB)
Title: New cyclopentanophenanthrene derivatives and process for the production thereof
IPC: C07J5/00
Filed: 1959-11-25
Abstract: The invention comprises compounds of the general formula:- <FORM:0933866/IV(a)/1> (wherein Z is a single or a double carbon-carbon bond, X is bromine or chlorine, and R is hydrogen or an acyl group derived from a hydrocarbon carboxylic acid having from one to twelve carbon atoms) and their preparation from 17a -hydroxy progesterone by epoxidation at C4-C5, cleavage of the oxide bridge with HBr or HCl, and dehydrogenation at C6-C7, and optionally at C1-C2, with chloranil in xylene (D 6,) or n-amyl alcohol (D 1,6,) or with selenium dioxide (D 1 only), the C17 OH group being preferably protected by acylation prior to the dehydrogenation steps.  The dehydrogenation at C1-C2 may also be achieved using a biochemical method, e.g. incubation with Corynebacterium simplex ATCC 6946.  The invention is illustrated by 8 detailed examples.  Specification 855,800 is referred to.
Patent GB-1096409-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/14
Filed: 1965-09-22
Abstract: 1,096,409. Combustion chambers. TECHNOIMPEX MAGYAR GEPIPARI KœLKERESKEDELMI. Sept. 22, 1965 [Feb. 5, 1965], No.40310/65. Heading F1B. An elongated precombustion chamber 1 has an inlet passage 3 directed towards an incandescent plug 15 and the fuel injector 4 directs the fuel jet towards an uncooled part 5 of the chamber wall, the passage 3 having a frusto-conical part 2. The piston 10 has a projection 12 opposite the outlet of passage 3.
Patent GB-1070079-A (GB)
Title: Improvements in connector plates for joining timbers
Inventor: ECCLES JOHN FREDERICK
IPC: E04B1/49
Filed: 1964-10-06
Abstract: 1,070,079. Spiked plates. HARVEY & CO. Ltd. Oct. 4, 1965 [Oct. 6, 1964], No. 40799/84. Heading F2H. A timber connector plate comprises short triangular shaped projections 4 punched from the peripheries of circular holes, and long bevelpointed projections 3, each with a longitudinal depression, which are also punched out of the plate. The projections may be formed on one side only of the plate.
Patent GB-936321-A (GB)
Title: Low pressure hydrogenolysis of acetylenic diols to produce aliphatic monohydric alcohols
IPC: B01J37/03
Filed: 1961-11-15
Abstract: Saturated aliphatic monohydric alcohols are produced by reacting one mole of an acetylenic diol of formula:-  <FORM:0936321/IV(a)/1> in which R1, R2, R3 and R4 are hydrogen or a C1 to C6 alkyl group, with three moles of hydrogen at a pressure of 1-5 atmospheres, a temperature of 20 DEG -100 DEG C., and in the presence of a catalyst containing rhodium or a mixture of rhodium and palladium.  The catalyst is preferably supported on an inert carrier.  The acetylenic diol may be used in solution in an aliphatic alcohol having up to six carbon atoms, or in an aliphatic acid having up to six carbon atoms. Diols used include butyne-2-diol-1,4 and 3,6-dimethyloctyne-4-diol-3,6 to give butanol and dimethyloctanol respectively.
Patent GB-1353266-A (GB)
Title: Toothbrushing device utilizing contact potential between conduc tors and human body
IPC: A46B9/04
Filed: 1972-09-04
Abstract: 1353266 Toothbrushes NARCOHM SEISAKUSHO K K 4 Sept 1972 [27 Sept 1971] 40999/72 Heading A4K A toothbrush which removes food residue from the mouth by electrolytic dissociation of the food particles into charged particles which are attracted to an electrode 13 in the bristles 11 of the brush, comprises a shank 10 of electrically insulating material with the bristles and electrode at one end, the electrode being connected to a hand grip 12 at the other end of the shank or to a battery in a housing 19 by an electric conductor 14, the hand grip or housing 19 being of a material which upon contact with the human body develops a greater contact potential than that developed between the electrode and the human body. An ammeter 23 is disposed at one end of the battery housing.
Patent GB-1094850-A (GB)
Title: Gas turbine fuel system
IPC: F02C9/26
Filed: 1966-09-15
Abstract: 1,094,850. Gas turbine engines. GENERAL MOTORS CORPORATION. Sept.15, 1966 [Oct. 20, 1965], No.41280/66. Heading F1G. In a gas turbine engine fuel system, fuel is supplied by a pump via a control unit (not shown) to a conduit 142, Fig. 3, from which, at starting, it flows via a filter 150, conduit 146, an annular valve groove 156 and a conduit 160 to a manifold 36 feeding small ports 35 in fuel nozzles 32. After the starting cycle has been completed and the engine is accelerated, the fuel pressure becomes sufficient to open a valve 202 against the action of a spring 204, allowing flow of unfiltered fuel via conduits 250, 162 to a manifold 38 feeding large ports 37 in the nozzles 32. When the fuel flow has increased to the point at which flow through the large nozzle ports 37 is sufficient to give good atomization without the assistance of the small nozzle ports 35, the difference between the fuel pressure, communicated through a conduit 252 to the outside of a bellows 178, and the pressure at the inlet to the combustion equipment, communicated through conduit 184 to the inside of the bellows, is sufficient to collapse the bellows. This opens a valve 172, whereupon fuel flows from chamber 152 via conduits 168, 170, 162 to the manifold 38. Because valve port 174 is larger than a restriction 166, the chamber 152 empties through conduit 168 faster than it can be refilled through conduit 164. The resultant reduction in pressure in chamber 152 allows valve 154 to be moved upwardly by the fuel pressure in conduit 148. This closes communication between conduits 146 and 160 and opens communication between conduits 148 and 162, so that flow through nozzle ports 35 ceases while the flow through nozzle ports 37 is established through valve 154 independently of valve 202. The pressure communicated through conduit 148 now acts over the whole cross-sectional area of valve 154; moreover, the differential pressure acting on the bellows 178 will remain sufficient to keep the valve 172 open even at high altitudes. This ensures that the fuel system will not revert to the initial condition until a further starting cycle is required. The filter 150 is washed by the unfiltered flow to the nozzle ports 37, which are large enough to handle any contaminants. In an alternative arrangement, Fig. 2 (not shown), the pressure acting on the outside of the bellows (78) is the compressor discharge pressure. When the bellows collapses, an auxiliary valve operated by the bellows disconnects the bellows interior from the inlet pressure of the combustion equipment and vents it to atmosphere. This prevents any reversion to the initial state at high altitudes.
Patent GB-1517508-A (GB)
Title: Rolling bearing assemblies
IPC: F16C35/077
Filed: 1975-09-11
Abstract: 1517508 Clutch release bearings AUTOMOTIVE PRODUCTS Ltd 11 Sept 1975 [23 Sept 1974] 41365/74 Headings F2L and F2A In a rolling bearing assembly, shown as a clutch release bearing, one of the races, 13, is radially located by a co-operating cylindrical surface of a carrier member 10 and an annular dust shield and grease retainer 16 which extends past an end of the annular space between the races 13, 14, has a tubular portion in spigotted interengagement with the race 13 and sandwiched between the race 13 and the cylindrical surface of the carrier member 10, the tubular portion being corrugated or otherwise deformed to cause it to be deformed between the race 13 and the surface of member 10 and so be resiliently urged into engagement with these members. An inner shield 17 is also provided. The shields 16, 17 have flanges 19, 23 between which protrudes a portion 25 of race 14 for engagement with release means of a clutch. The carrier member 10 has trunnions 11 for a clutch release fork. In alternative embodiments the bearing race can be mounted on a radially inner cylindrical surface of the carrier member 10, with the inner shield sandwiched between them, or the bearing may have radially, rather than axially, spaced races.
Patent GB-1092547-A (GB)
Title: Production of chlorinated hydrocarbons
IPC: C07C17/154
Filed: 1965-09-29
Abstract: The catalytic oxychlorination of CH4 to CCl4 or of C2H6 to C2HCl3 and C2Dl4 is performed by forming gaseous reactants comprising CH4 or C2H6, a gas containing molecular oxygen, and a chlorine source (as defined below) into a first reaction zone where they are contacted with an oxychlorination catalyst at 300 DEG -600 DEG  C., the chlorine source and oxygen being introduced into the first reaction zone in an amount to provide reactive chlorine in an amount of 50% to 90% of the amount of reactive chlorine to be introduced into the precursor hydrocarbon in the oxychlorination reaction, removing at least 30% of the water from the reaction products issuing from the first reaction zone, forming the remaining products, the balance of the chlorine source and any oxygen required to complete the oxychlorination reaction into a second reaction zone in contact with an oxychlorination catalyst at 300 DEG -600 DEG  C., and recovering reaction products issuing from the second reaction zone.  The expression "chlorine source" denotes any or all of HCl, Cl2 or a saturated, partially chlorinated hydrocarbon having 2 or more carbon atoms. Various other chloro-methanes, -ethanes and -ethylenes are formed as by-products.