baber/WOPTO huggingface dataset:
Patent GB-1257481-A (GB)
IPC: D01F9/32
Filed: 1968-04-19
Abstract: 1,257,481. Carbon fibre laminates. ROLLS ROYCE Ltd. 17 April, 1969 [19 April, 1968], No. 18617/68. Heading B5N. [Also in Divisions B2 and C1] Resin-coated sheets of carbon fibre are produced by continuously feeding a plurality of sheets or tapes of fibres of polyacrylonitrile or copolymer thereof, comprising at least 10<SP>5</SP> fibres, through a furnace or furnaces wherein the majority of constituents other than carbon are driven off and subjecting the resulting sheets of carbon fibre to a resin-impregnation step. This is carried out by feeding the tapes into a resin impregnation unit where they are contacted with a resin-coated release paper on both sides and then passing the sandwiched tapes between heated rollers, the heat and pressure causing the resin to transfer from the release paper to the fibre tapes, thus impregnating them with resin. The coated tapes may then be cut tranversely to form sheets. The release paper is preferably itself impregnated with a release agent which affords the resin no permanent adhesion to the paper.
Patent GB-1257959-A (GB)
IPC: C02F11/125
Filed: 1969-06-24
Abstract: 1,257,959. Extrusion screw press. T. GLOWACKI. 24 June, 1969 [26 June, 1968], No. 31878/69. Heading B1D. The solids outlet end of an extrusion screw press comprises an annular opening defined between the end of perforate casing 3 and cylindrical extension 12 of the screw 2, the opening being obtruded by an array of twelve plates 6, each hinged at its radially outer edge 7 and biassed inwards by a pneumatic ram 10, 11. This arrangement enables knots formed on one side of the opening to be discharged by localised displacement of the plates. The inlet 4 is illustrated in Fig. 5 (not shown) and facilitates ready passage of knots into the screw thread.
Patent GB-1258684-A (GB)
IPC: F16K5/04
Filed: 1970-06-22
Abstract: 1,258,684. Valves. D. SINKLER. 22 June, 1970, No. 30229/70. Heading F2V. In a rotary conical plug valve having a housing 16 formed with aligned inlet and outlet ports, (24, 26, Fig. 2, not shown) a resilient sleeve insert 18, and a plug 20 formed with a through bore 22, retention of the plug within the sleeve is achieved by way of a thrust member 36 which is secured to the plug spindle 38 by means of a split pin 44 and which bears solely upon the sleeve, no part of the thrust member engaging the housing 16. The housing interior is shaped as at 132, 120, 128, 122 and 134 in a manner which ensures the formation of high and low pressure region on the sleeve when the latter is press-fitted into the housing and hence the locking of the sleeve against axial and rotational movement relative to the housing.  Figs. 4 to 16, not shown, depict various modifications of the anchorage between the plug and sleeve. In each case, the housing end part is not used for facilitating and or completing the anchorage.
Patent GB-1258730-A (GB)
IPC: C08F8/20
Filed: 1969-12-29
Abstract: 1,258,730. Halogenated olefin copolymers. STAMICARBON N.V. 29 Dec., 1969, No. 33102/71. Divided out of 1,257,539. Heading C3P. Sulphur vulcanizable halogen-containing copolymers are prepared by reacting with a halogen a copolymer of ethylene, at least one other olefinically unsaturated compound and at least one 4,7,8,9-tetrahydroindene derivative having a C 1-12  alkyl group bound to a carbon atom of a C = C group. Specified other compounds are propylene, pentene-1, hexene-1, 4-methylpentene-1, octene-1, decene-1, styrene, α-methylstyrene, vinyl chloride and acrylic acid. Halogenation may be effected with chlorine, bromine, iodine monochloride or iodine trichloride, optionally in the presence of a halogenation catalyst, in emulsion, suspension or solution, e.g. in a hydrocarbon or halogenated hydrocarbon, or in the absence of a liquid medium. The products may be compounded with conventional fillers, extender oils and vulcanizing ingredients, and vulcanized with sulphur or peroxides; or covulcanized with natural, styrene - butadiene, acrylonitrile - butadiene, polybutadiene or polyisoprene rubbers. In examples, copolymers of ethylene, propylene and 5 - methyl- and 6 - methyl - 4,7,8,9 - tetrahydroindene are halogenated with chlorine, and compounded with zinc oxide, stearic acid, carbon black, 2-mercaptobenzothiazole, tetramethyl thiuram disulphide and sulphur and vulcanized.
Patent GB-1258812-A (GB)
IPC: A61N1/36
Filed: 1969-01-03
Abstract: 1,258,812. Nerve stimulators. WELLCOME FOUNDATION Ltd. 3 Jan., 1969 [5 Jan., 1968], No. 564/69. Heading A5R. [Also in Division H3] A nerve stimulator comprises a power supply, an oscillator having a single transistor VT1 and a variable impedance timing network R1 to R4 and Cl, and a transformer having a first primary winding W1, a second primary winding W2 in circuit with the transistor base and through which a current induced by current flow in winding W1 is passed by way of a positive feed-back loop to said base, and a secondary winding W3 connected in series with a gas discharge lamp LP1 and providing output pulses having a repetition rate in the range 1 pulse/10 secs. to 50 pulses/sec. By selectively switching resistors Rl to R4 into or out of circuit pulse rates of 1 pulse per 10 secs., 1 pulse/5 sees., 1 pulse/sec. or 50 pulses/ sec. are attainable. The lamp LP1 serves as a visual indicator of the presence of an output pulse and to limit the voltage across potentiometer RV1 which is used to adjust the output pulse voltage.
Patent GB-1259245-A (GB)
IPC: A01G27/04
Filed: 1970-05-19
Abstract: 1,259,245. Receptacles for growing plants. A. E. CHOUX, P. GAUDARD and A. WIEDERKEHR [trading as SOC. SIMPLE ANTOINE EMILE CHOUX, PIERRE GAUDARD, ET ARTHUR WIEDERKEHR]. 19 May, 1970 [21 May, 1969], No. 24115/70. Heading A1E. A receptacle 1 for growing plants is provided with hollow projections lc on its base which are perforated and filled with a granular material 8 such that capillary action draws water 5 from an outer container 2, and slots 7 in the receptacle walls for soil ventillation. Two inwardly projecting portions 1a are formed in the wall of receptacle 1 to provide openings to the space between the receptacle 1 and container 2 for passage of air and for filling the container with water. The receptacle and container are preferably constructed of plastics material.
Patent GB-1264913-A (GB)
IPC: B21D39/03
Filed: 1969-07-09
Abstract: 1,264,913. Jointing; making cans. TOYO SEIKAN K.K. 9 July, 1969, No. 34495/69. Headings B3A and B3V. In a method of making the body portion of a metal can an adhesive having a self-diffusion coefficient > 6 Î 10<SP>-21</SP> cm.<SP>2</SP>/sec. is first applied to the edges of a blank and the edges are later heated to melt the adhesive and pressed together with cooling to form the bond. An apparatus for carrying out the method comprises a mandrel 10 having a groove in which a feed pawl 15 feeds blanks 8, having edges precoated with adhesive, past a heating station where induction heaters 13 heat the edges, to a cylindrical part 12 of the mandrel where the edges are closed by means of a cooled hammer 14. The mandrel and hammer are each cooled by coolant, preferably at - 30‹ C., passing through tubes 16 and 29 respectively. The edges of the blank are superposed by means 28 having curved surfaces 27 which co-operate with the cooled mandrel 12, Fig. 7. Thermoplastic adhesives may be used including nylons and polyethylene terephthalate.
Patent GB-1265890-A (GB)
IPC: B01J13/00
Filed: 1969-07-15
Abstract: 1,265,890. Aerogels. FRANCE ARMED FORCES MINISTER OF. 15 July, 1969 [15 July, 1968], No. 35673/69. Headings C1A and C1N. An aerogel of a metal oxide e.g. aluminium, titanium or zirconium oxide is made by mixing water with either (a) a solution of a hydrolysable metal alcoholate in a water-immiscible organic medium or (b) a suspension of such an alcoholate in a water-miscible organic medium so as to hydrolyse the alcoholate to a precipitated metal hydroxide, and removing the organic medium and at least the majority of the water by evacuation in an autoclave. An inhomogeneous 2-phase system (not counting precipitated metal oxide) is produced on mixing the water and alcoholate solution or suspension. The water-immiscible solvent may be benzene, and the water immiscible suspending agent may be the alcohol corresponding to the alcoholate group of tho metal compound. The mixing with water may be effected under acid or alkaline conditions by adding acetic acid or ammonia. Examples describe the preparation of zirconium and titanium oxide aerogels from n-butylates, npropylates and isopropylates.
Patent GB-1306406-A (GB)
Title: Tuning apparatus for coaxial resonant cavities
IPC: H01P7/06
Filed: 1970-04-14
Abstract: 1306406 Temperature compensated cavities DEFENCE SECRETARY OF STATE FOR 19 April 1971 [14 April 1970] 17647/70 Heading H1W [Also in Division H3] A temperature-compensating tuning mechanism for a waveguide structure comprises a telescopic tuning member which has a first section 4, 5 and a second section 12, 14 with different thermal expansion coefficients and an adjustment screw 8, 9 interconnecting the two sections; and contact means 15 to make a short-circuit at the operating frequency between the two sections of the tuning member while allowing telescopic relative movement of the two sections. As shown, a Gunn diode 24 is located in a coaxial resonant cavity between a metal mounting member 20, insulated from the metal wall 2, and a locating hole 22 in the central metal post 3. The telescopic tuning member is used to compensate for the frequency/temperature coefficient of the Gunn diode. The section 4, 5 is made of brass or copper and the second section 12, 14 is made of a metal such as "Invar" (Trade mark) having a comparatively low thermal expansion coefficient. A locking device (not shown) such as a key protruding from the end of screw 5 and co-operating with a keyway provided longitudinally in stem 12, prevents rotational movement of stem 12 relative to screw 5 when the adjustment screw 8, 9 is rotated. The tuning screw 4 is adjusted to produce the required resonant frequency and the frequency/ temperature coefficient is adjusted by varying the length X 0  by means of the screw 8. The contact means 15 may comprise a member with resilient fingers attached to end 6 of section 5 or disc 14, or alternatively a separate part with two sets of resilient fingers.
Patent GB-1310879-A (GB)
Title: Doors for use by animals
IPC: E06B7/32
Filed: 1969-06-03
Abstract: 1310879 Auxiliary animal doors B O REES 24 June 1970 [3 June 1969] 28018/69 Heading E1J An animal door 10 for fitting in an opening 11 in a main door or panel comprises a circular door 14 hingedly mounted on a circular frame 12 secured to the main door or panel around the circular opening 11, the hinge axis 26 being disposed so that the centre of gravity of the door 14 rises as it is opened and being offset laterally from the contact plane of the door 14 and frame 12 in the direction opposite to that in which the door opens, so that a door-closing force acts on the door 14 at all times, including in the closed position. The frame 12 is preferably mounted with the hinge axis inclined, at e.g. 45‹ to the vertical as seen in front elevation. The door 14 is secured to an angle bracket 23 carrying the hinge pin 26 which is received in a bracket mounted on the frame 12, this latter bracket being adjustable with respect to the frame by means of a slot in its base through which the fixing bolt passes. An annular sealing strip 19 is provided on the doorcontacting surface of the frame 12, and a peripheral flange 21 of the door extends beyond the seal 19.
Patent GB-1318949-A (GB)
Title: Potato product and process
IPC: A23L19/15
Filed: 1970-11-10
Abstract: 1318949 Potato AMERICAN POTATO CO 10 Nov 1970 [10 Nov 1969] 19729/72 Divided out of 1318948 Heading A2E  An agglomerate of dehydrated potato particles is prepared by dehydrating potato particles, rewetting the particles with water in the range 30-55% by total weight, forming the rewetted particles into a loose agglomerate, for example by extrusion, and drying to yield a consolidated porous structure. Pepper and/or oregano may be incorporated to enhance the storage life as set forth and claimed in Specification 1318948. Also present may be 2-10 wt. % non-fat milk, 0.1-5 wt. % vegetable oil, 0.01-2.0 wt. % butter flavour, and 1-5 wt. % salt.
Patent GB-1319434-A (GB)
Title: Air flotation machine
IPC: B03D1/26
Filed: 1971-11-02
Abstract: 1319434 Apparatus for froth flotation; aerating and circulating liquids GOSUDARSTVENNY PROEKTNY INSTITUT GORNOI KHIMII 2 Nov 1971 50933/71 Headings B1C and B2H An air flotation machine comprises at least one chamber having end and side walls, a pulp aerator 6 located in the chamber, a pulp charging device 2 at one end of the chamber and a pulp discharge device 3 at the opposite end, a froth overflow lip 4 in a side wall of the chamber, a slit-type airlift 5 located lengthwise of the chamber and having a top edge above the level of the overflow lip 4, and inclined baffle plates 21 arranged to guide material downwardly and lengthwise of the chamber towards an -inlet of the airlift. The inclination of each baffle plate 21 may be adjusted by means of a rod 23 common to all the plates in a row. Air is fed into the bottom of the airlift from a box 13 through an elongate slit (14) closable by a stopper device (15) operated via a link (18) by an air jack 20. When the pulp is fed into the chamber through the device 2, the finely divided and hydrophobic particles get stuck in the froth generated by the aerator 6 whilst the heavier and hydrophilic particles slide down the inclined plates and are sucked into the airlift 5. At the top of the airlift, the emerging stream is split into two by a plate 11 and is directed against deflectors 8. Air escapes through slits 9 and the pulp is directed into the froth layer by plates 12. The heavier particles are subjected to this cycle several times until, eventually they reach the end of the chamber and are discharged by the device 3. The number of cycles through which these particles pass is determined by the slope of the baffle plates 21.
Patent GB-1319724-A (GB)
Title: Wheeled vehicles
IPC: B60K5/12
Filed: 1971-05-07
Abstract: 1319724 Independent front suspensions ROVER CO Ltd 3 May 1972 [7 May 1971] 13673/71 Heading B7D A suspension sub-assembly for carrying the front wheels 23 of a motor vehicle comprises a cross-member 12 having rigidly secured thereto two parallel tubes 13, 14 each of which extends longitudinally of the vehicle and is mounted by rubber bushes 17, 18 on a rod 15 rigidly attached to the vehicle body by brackets 20, 21. Rubber stops 22 limit longitudinal movement of the tubes 13, 14 on the rods 15. The front wheels 23 are connected to the cross-member 12 by wishbones 24, 25, and an engine 26 is mounted on the cross-member by rubber blocks 27.
Patent GB-1320342-A (GB)
Title: Superconducting electrical machines
IPC: H02K55/04
Filed: 1970-02-18
Abstract: 1320342 Superconducting electrical machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 19 April 1971 [18 Feb 1970] 7886/70 Heading H2A In a superconducting electrical machine, e.g. synchronous generator, comprising a hollow rotor having a central part 10 carrying a superconducting winding 11, e.g. of Cg-Ti cooled by circulating cryogenic fluid, e.g. liquid helium through winding cooling ducts 13 which central part 10 is joined to rotor shafts 10a supported in bearings 12 by two end parts 10b the wall of one or both of which is cooled by circulating cryogenic fluid through wall cooling ducts 15, the fluid is supplied from a supply means through respective generally radial passages 14, 16 and heat from the radially outer end of the winding passage 14 is conveyed by a heat transfer means 20 to the supply means, to be dissipated in the fluid fed to the wall passage 16. As shown, the heat transfer means 20 is a solid Al or Cu member which conducts heat to a common junction 17 connected to refrigeration equipment 18 connected by a conduit 19 to a further such equipment outside the rotor, and thus the temperature increase due to increase of pressure resulting from centrifugal force of the fluid in passage 14 is dissipated in the much larger quantity of fluid fed through passage 16. The equipment 18 may be connected by a pipe 19 to further such equipment outside the rotor or, alternatively, the equipment may be wholly outside the rotor.
Patent GB-1330758-A (GB)
Title: Manufacture of pigments
IPC: C09C1/36
Filed: 1971-04-28
Abstract: 1330758 Oxide coated TiO 2  BRITISH TITAN Ltd 13 April 1972 [28 April 1971] 11824/71 Heading C1N TiO 2  is coated with at least one hydrous oxide by precipitating the oxide from a water-soluble compound thereof in an aqueous dispersion of the TiO 2  in the presence of an alcohol containing at least two OH groups. Exemplified alcohols are ethylene glycol, 1,2- and 1,3-propane diol, 1,4-butane diol, 1,3-pentane diol, 1,3- and 1,6- hexane diol, glycerol, and trimethylol ethane. The oxide may be of Al, Ti, Ce, Zr, Zn, Si, and may be precipitated from compounds such as Al sulphate, nitrate or chloride, Ti sulphate or chloride, Zr sulphate or oxychloride, Na aluminate or silicate. The alcohol may be added before or after the addition of the metal compound and before or during the addition of the acid or alkali precipitating agent. The product may be filtered, washed, dried and fluid energy milled.
Patent GB-1333924-A (GB)
Title: Storage system for barrel shaped or cylindrical articles
IPC: B65G1/06
Filed: 1971-10-07
Abstract: 1333924 Storing barrels; reciprocating beam conveyers GOUGH & CO (HANLEY) Ltd 7 Oct 1971 [7 Oct 1970] 47674/70 Headings B8A and B8E Barrels B, Figs. 1A, 1B, are stored on a series of reciprocating beam conveyers 24 on to which they are pushed, from a conveyer 2, by a device 6 which runs on rails 8. Barrels are withdrawn from the conveyers by rocking cradles 58 which tip the barrels on to a conveyer 62. The beam has pushers 48, Fig. 4, which are pivoted into an upright position by weights 50 and can swing to an inoperative position in one direction only. A member 18, Fig. 5, operated by a ram 16 pushes the barrels on to the conveyer if a sensor 36 indicates that space is available. The withdrawal member, Fig. 1B, is movable along rails and tilts the cradle hydraulically through a push-rod 66. A barrel sensing device is provided on the withdrawal member.
Patent GB-1335703-A (GB)
Title: Control of welding current
IPC: B23K9/073
Filed: 1971-05-11
Abstract: 1335703 Automatic control of arc welding A P V CO Ltd 11 May 1971 [5 June 1970] 27320/70 Heading G3R [Also in Division H2] The current taken by an arc welding circuit from a D.C. supply is maintained at a predetermined value or varied in a desired manner by a control system comprising a current sensing resistor 4 which supplies a signal to a differential amplifier 8 also supplied with a reference signal from a potentiometer 13, the output of this amplifier being passed through amplifying transistors 10 to the bases of parallel-connected transistors 1 in series with the arc welding circuit. The potentiometer 13 is supplied by an amplifier 14 provided with a linear current decay by suitable choice of the values of resistor 15 and capacitor 16 connected to its input. To prevent the transistors 1 being overloaded upon the occurrence of a permanent short circuit of electrode to workpiece, the current is automatically reduced during this condition by a protection circuit comprising an amplifier 19 which senses the voltage across the transistors 1 and controls, via a potentiometer 18, the setting of an amplifier 17 whose output is combined with that of the amplifier 14. Amplifier 17 also receives the signal from current sensing resistor 4. A diode 2 isolates the control system from terminals 6 to which a voltage is applied for a short period during arc initiation. Further terminals 7 are isolated by a radio frequency choke 3 and receive a high frequency voltage for initiating the arc. The arc current may be controlled to vary linearly or exponentially with time or to be in the form of constant frequency pulses having a constant mark/space ratio.
Patent GB-1336564-A (GB)
Title: Hydraulic telemoter cylinder devices
IPC: F16D25/08
Filed: 1970-11-12
Abstract: 1336564 Telemotors S K F (UK) Ltd 12 Nov 1970 [4 Dec 1969] 59339/69 Addition to 1255003 Heading F1P An hydraulic telemotor cylinder device comprises an annular cylinder 17 closed at one axial end thereof, the right-hand end in Fig.2, and having a tangential passage 15 for connection into the telemotor system and a further tangential passage 18 for bleeding air from cylinder 17. An annular piston 21 in cylinder 17 has an extension 20 which at its outer end forms the inner race of a ball bearing 22, the piston 17 constituting the one element of the piston-cylinder combination of a rolling thrust bearing as claimed in claim 1 of Specification 1255003.
Patent GB-1345121-A (GB)
Title: Device for attaching a pad to a handle
IPC: A47L13/256
Filed: 1972-12-28
Abstract: 1345121 Pads SPEARHEAD CHEMICAL Ltd 28 Dec 1972 [3 Jan 1972] 137/72 Heading A4F [Also in Division B3] A device for attaching a pad to a handle comprises a plate 1, e.g. of aluminium, having two opposed channel shaped portions 5, 6 in which are clamped portions of the pad (not shown) by hingedly connected parts 10, 11 of a locking member 9 secured to the handle 14, the parts 10, 11 being engaged in the channels 5, 6 by moving the hinged connection 12 towards the plate 1. The pad may be of absorbent mop material, of polishing material such as brushed nylon, or of an abrasive material such as sand paper.
Patent GB-1348881-A (GB)
Title: Particle detection apparatus
IPC: G01N27/02
Filed: 1970-02-27
Abstract: 1348881 Phase detectors; automatic threshold circuits SMITHS INDUSTRIES Ltd 19 April 1971 [27 Feb 1970 21 April 1970] 9492/70 and 19134/70 Headings H3A and H3T [Also in Division G1] In a particle detecting device, see Division G1, a metallic particle passing along a pathway embraced by coils 3, 4 connected on an A.C. inductive bridge energized by square wave generator 13 causes the bridge to be unbalanced and a square wave A.C. signal to be produced across the bridge diagonal 18, 19. The A.C. signal is demodulated by double emitter 22, 23 demodulator 21 and after amplification at 29, 30 applied to monostable trigger circuit 33 via filter 32. Filter 32 provides two signal paths from the output of amplifier 30 one via 36, 37 to the trigger circuit 33 and the other via 39, 40 to rectifier 38 which provides rectification against a negative bias established by rectifier 41. The resulting D.C. level which is applied via resistor 42 to the input of the trigger circuit 33 depresses the main path noise signals due to engine vibration below the threshold of the trigger circuit so that the latter is not activated. Signals due to passage of particles produce excursions above the D.C. level to exceed the threshold level. When power is first applied to the detector transistor 45 shorts out the input to circuit 33 until capacitor 46 has charged to avoid initial switching-in transients in the detector.