baber/WOPTO huggingface dataset:
Patent GB-1310445-A (GB)
Title: Dumper trucks
IPC: B60P1/32
Filed: 1970-11-16
Abstract: 1310445 Dumper vehicles ETABS J SAMBRON 16 Nov 1970 [26 Nov 1969] 54362/70 Heading B7B A dumper body 3 having discharge noses 5, 6 is carried by a rotatable turret so as to permit rotation of the body and discharge of the contents through either nose in one of three discharge positions. Members (9), Fig. 1 (not shown) are connected to the turret and pivots (7), (8), the members being removable individually to permit pivoting about the opposite pivot. The nose 6 may be wide for handling rock or stone, while the nose 5 is narrow for handling fine or fluent material.
Patent GB-1159358-A (GB)
Title: Improvements in or relating to method and apparatus for Developing Diazo-Type Films
IPC: G03D7/00
Filed: 1967-11-29
Abstract: 1,159,358. Film processing. NB JACKETS CORP. Nov. 29, 1967 [Dec. 27, 1966], No. 54429/67. Heading G2A. In a diazo-type developer, a film or a pair of films in back to back relationship is or are inserted between relatively reciprocable platens 10, 11, to rest on pins 20A, 21A. The platens are then closed against each other to seal the film or films within a chamber 17 enclosed by a resilient frame 16. Control valve 31 then opens to feed ammonia into the sealed chamber 17 to displace air through pipe 26, the ammonia remaining to develop the film. Valve 27 then opens to let pressurized air into the chamber to purge away the ammonia through the discharge line 26 into water tank 33. Platens 10, 11 are then moved apart and solenoids 20, 21 actuated to withdraw pins 20A, 21A permitting the film or films to drop from between the platens. The platens 10, 11 are reciprocated under the control of a motor driven cam (49), the shape of the cam determining the length of time during which the platens are closed. Cloth sheets 18, 19 line the facing surfaces of the platens.
Patent GB-1459577-A (GB)
Title: Electrolytic capacitors
IPC: H01G9/00
Filed: 1974-12-20
Abstract: 1459577 Electrolytic capacitors; RC networks SIEMENS AG 20 Dec 1974 [8 Feb 1974] 55101/74 Headings H1M and H1K [Also in Division H3] An electrolytic capacitor comprises anode and cathode strips 1, 4 wound together with intervening paper strips soaked in the working electrolyte, each electrode strip having an input and output contact spaced apart along its length. As shown contacts 2, 3 and 5, 6 are at opposite ends of strips 1 and 2 respectively. The assembly provides an RC lattice network with low impedance and inductance. Preferably the four leads are brought out at the same end of the capacitor casing, and again to minimize conductance the pair of terminals corresponding to one foil are displaced by 90 degrees from the other pair (Fig. 3, not shown). To prevent overheating due to high output currents, chokes 11, 12 (Fig. 5) are connected in parallel with electrodes 1, 2 respectively in the supply line to load R L , each choke having a low D.C. resistance compared with the foil resistance while its A.C. resistance is higher than the input terminal resistance, so that the D.C. current component flows mainly through the chokes.
Patent GB-1173378-A (GB)
Title: Liquid-Liquid Extraction of Aromatic Hydrocarbons from Petroleum Fractions
IPC: C10G21/12
Filed: 1967-12-04
Abstract: 1,173,378. Solvent extraction process. RUMANIA, MINISTRY OF PETROLEUM INDUSTRY. 4 Dec., 1967 [6 Dec., 1966], No. 55140/67. Heading C5E. In a process of liquid-liquid extraction for separating aromatic hydrocarbons from a petroleum fraction with distillation limits 10‹ to 600‹ C. the aromatic hydrocarbons contained in said fraction are extracted with a solvent comprising #-caprolactam or a mixture of the latter with water up to 50% by weight and if desired with other polar solvents present, the operation being carried out in apparatus which is capable of reaching at least one theoretical equilibrium at a temperature between 0‹ and 200‹ C., and using a solvent ratio between 0.25 : 1 and 20 : 1, and thereafter the solvent and aromatic hydrocarbons as desired are recovered. Polar solvents mentioned are glycols, pyrrolidone, nitriles and sulpholane. The separated phases may be freed from solvent by water washing, re-extraction with a paraffinic hydrocarbon, or heating and steaming.
Patent GB-1346951-A (GB)
Title: Coating composition for glass fibers
IPC: C08J5/08
Filed: 1971-11-30
Abstract: 1346951 Coated glass fibres for reinforcing rubber PPG INDUSTRIES INC 30 Nov 1971 [1 Dec 1970] 55484/71 Heading B2E [Also in Division C3] Aqueous combined sizing/coating compositions for treating glass fibres comprise (a) a resorcinol/formaldehyde latex, (b) a styrene/ butadiene/vinyl pyridine terpolymer latex, (c) an amino-functional silane coupling agent, e.g. γ-aminopropyl triethoxysilane, (d) ammonia and (e) 0.1-6wt% of an ammonia-soluble carboxyl-containing polymer, e.g. butyl acrylate/styrene/methacrylic acid copolymer, a similar polymer additionally containing 2-hydroxyethyl acrylate units, or a carboxylated polyvinyl acetate containing 10-20% crotonic acid. Some of the exemplified compositions contain additional components selected from SBR latex, formaldehyde, and butyl "cellosolve" (Trade Mark). Glass fibres treated with the above compositions may be used to reinforce natural and synthetic rubbers.
Patent GB-1488029-A (GB)
Title: Preparation of trichlorosilane and tetrachlorosilane
IPC: C01B33/107
Filed: 1974-12-31
Abstract: 1488029 Trichlorosilane and tetrachlorosilane DYNAMIT NOBEL AG 31 Dec 1974 [31 Dec 1973] 56082/74 Heading ClA A gas mixture comprising trichlorosilane SiHCl 3  and tetrachlorosilane SiCl 4  is prepared by reacting elemental silicon or a silicon alloy, preferably ferrosilicon or calcium silicide, with hydrogen chloride in a fluidized bed, the reaction being carried out at a temperature in the range of from 260 to 600 C. and in the presence of iron (II) chloride, or a precursor, such as iron carbonate, iron oxalate, Fe 2 O 3 , Fe 3 O 4  or iron acetylacetonate, in a quantity of such that there is from 10 to 43% by weight of iron present based on the total quantity of solids in the fluidized bed.
Patent GB-1165009-A (GB)
Title: Improvements relating to Semiconductor Devices.
Inventor: NUTTALL ROY
IPC: H01L23/29
Filed: 1966-12-14
Abstract: 1,165,009. Semi-conductor devices. FERRANTI Ltd. 13 Nov., 1967 [14 Dec., 1966], No. 56101/66. Heading H1K. A semi-conductor device comprises a body of semi-conductor material having a layer of silicon dioxide formed over at least part of the surface of the body and a further layer of silicon nitride formed over the silicon dioxide layer. The semiconductor material may, but need not necessarily be, silicon; in this case the silicon dioxide layer may be formed by heating the silicon in a stream of steam, carbon dioxide or oxygen. The nitride may be deposited epitaxially by heating the oxide-coated semi-conductor in a stream of ammonia, hydrogen and silicon hydride. The invention is described as applied to the protection of the exposed PN junction at the surface of a planar junction device, to provide the layer of insulation in a metalinsulator-semi-conductor diode and to provide the gate insulation in an insulated-gate fieldeffect transistor.
Patent GB-1281196-A (GB)
Title: Improvements in or relating to pressure control systems
Inventor: FURLONG OWEN DESMOND
IPC: B64D13/04
Filed: 1969-11-20
Abstract: 1281196 Fluid-pressure servomotor systems WESTLAND AIRCRAFT Ltd 17 Nov 1970 [20 Nov 1969] 56776/69 Addition to 1213864 Heading G3P The pressure control system of the parent Specification is modified by the provision of two valves 13, 14 operated simultaneously by a switch 20 to disconnect the discharge valve actuator 35 from the normal pressure control signal 36 and connect it to a source of power fluid 34. The pressure applied to the actuator from the source 34 is determined by resistors 26, 27 and a manually adjusted altitude selector 15. A diaphragm actuated pad valve 12 relieves excess pressure between the restrictors. The selector 15 may be replaced by a valve connected to a capsule responsive to a pre-set pressure.
Patent GB-1262262-A (GB)
Title: Improvements in guidance systems
Inventor: EDE AINSLEY NEVILLE
IPC: E02F5/14
Filed: 1967-12-18
Abstract: 1,262,262. Optical guidance. HUDSWELL YATES DEVELOPMENTS Ltd. 18 March, 1969 [18 Dec., 1967], No. 57356/67. Heading H4D. Specification describes a simplified version of the optical guidance system described in Specification 1,046,024 wherein the many sectored reticle of said prior Specification is replaced by a quadranted reticle 11 Figs. 2, 3 having alternate opaque and transparent quadrants. The beam of light, having a corresponding quadranted cross-section is nutated by lens 12 rotating about axis 14 and, on impinging on one of the vertically displaced photodetectors 31, 32 Fig. 6, produces an output such as shown in Fig. 5 per nutation cycle. The fundamental wave in such an output has the form wherein (Fig. 4) R = radius of beam's circle scan at detectors. #=scan angle of beam at detectors. r, α=polar co-ordinates of misalignment of centre of circle scan from detector. x, y = cartesian co-ordinates equivalent to r, α. Thus in a manner analogous to the processing of the frequency modulated signals described in said prior Specification, sum and difference signals are produced from the two detector outputs in means 37 and 38 respectively. The fundamentals are extracted from said sum and different signals by low pass filters 45 and 39 to give an information and a reference signal respectively. The two signals are multiplied together at 47 to give a signal representing the y misalignment and are multiplied together at 49 after the information signal has undergone a 90 degree phase shift, to give a signal representing the x misalignment. The x and y signals may actuate indicators 50 and 51 and may control misalignment servo motors via power stages 54, 55. Fall off of the information and reference signals with range is counteracted by A.G.C. system 41. The system may be adapted to use radio microwave radiation.
Patent GB-1380074-A (GB)
Title: Optical alignment apparatus for projection printing system
IPC: G03B27/32
Filed: 1971-12-14
Abstract: 1380074 Optical alignment apparatus NIPPON KOGAKU KK 14 Dec 1971 [15 Dec 1970] 58076/71 Heading G2J An apparatus for aligning a photo-sensitive member 1 and an original member 2 having a pattern to be printed on the member 1 comprises a projection system 10 including at least two optical groups, means for positioning the member 1 perpendicular to an optical axis of the system 10, at a focal point of the first group means for positioning the member 2 at a conjugate point of the system 10 relative to the plate 1 perpendicular to the axis, a semi-transparent mirror 11 obliquely disposed to the axis between the groups, means for positioning a light source 12 or an image thereof at a position laterally offset from the axis and at the focal point of the combination of the mirror 11 and the first group, and an observation microscope 13 for observing an image of the plate 1 on the plate 2.
Patent GB-1408879-A (GB)
Title: Electrically operated pressure control valves
IPC: F16K31/02
Filed: 1971-12-15
Abstract: 1408879 Fluid-pressure servomotor systems LUCAS INDUSTRIES Ltd 6 Dec 1972 [15 Dec 1971] 58166/71 Heading G3P [Alsoin Division F1] An electrically-operated valve for a gas turbine control system has a stem 29 of a closure member 13 connected by a block 16 to a shaft 15 of a torque motor. Spring 19 between the block 16 and an adjustable pivoted lever 20 biases the closure member to close the pressure inlet 11 and electric signals fed to the torque motor act to open the valve. The distance the closure member moves for a given angular movement of the shaft 15 is adjustable by a bush 28 which is rotatable in the block 16 and eccentrically holds the end of the valve stem 29. In use the valve 50 has its torque motor energized by an amplifier circuit with motor position feedback having a temperature responsive input from a thermocouple 32 in the gas turbine compressor inlet. A piston 53 moves the inlet guide vanes 51 and bleed valves 52 of the compressor and is positioned by a restrictor 54 across the piston and a pilot valve 65 which is connected between drain and a pressure source Ps and is positioned by a diaphragm 58 responsive to the inlet fluid-pressure of valve 50. The opposite side of diaphragm 58 is connected to drain via a valve 63 which is responsive to the speed of the gas turbine engine. Spring 55 and stem 56 act as a feedback from the piston 53 to the pilot valve 65.
Patent GB-1292850-A (GB)
Title: Thermoplastic dressing material
Inventor: BURG K
IPC: B32B27/00
Filed: 1969-12-02
Abstract: 1292850 Surgical casts FARBWERKE HOECHST AG 2 Dec 1969 [2 Dec 1968] 58791/69 Heading A5R [Also in Division B5] A thermoplastic dressing material comprises (i) a textile fabric impregnated and/or coated on one or both sides with at least one copolymer of trioxan and one or more cyclic formals of the formula in which x+y=0 or 1, the polyacetal having a melting point of 40‹-80‹C and the molar ratio of formal: trioxan being 0.7 to 2.8:1, and (ii) at least one sheet of plastics material and aluminium foil coated on one or both sides with polytetrafluorethylene. The fabric may be of cotton, wool, cellulose acetate, polyester or polyacrylonitrile fibres and preferably weighs 10-100 g/m<SP>2</SP> and has a coating thereon 1-5 mm. thick, muslin bandages are preferred. The sheet may be of polypropylene, polyethylene, polyvinylchloride, polyester, cellulose derivatives or aluminium of 10-100 microns in thickness to which the polyetetrafluoroethylene may be applied from aqueous or organic dispersion, e.g. by spraying. The copolymer preferably has a melting point of 40-80‹C and a reduced specific viscosity of 0.6-1.0 U/g (at 140‹C in butrolactone with concentration of 0.5 g/100 ml) and may be applied by extrusion followed by calendering. The sheet may extend beyond the edges of the impregnated fabric.
Patent GB-1417975-A (GB)
Title: Device for feeding container closures
IPC: B67B3/06
Filed: 1971-12-17
Abstract: 1417975 Endless conveyers for container closures FORDS (FINSBURY) Ltd 16 March 1973 [17 Dec 1971] 58845/71 Headings B8A and B8T Container closures 3a are fed from a press 1 on to an endless conveyer 2. They are located in a vertical plane on the conveyer by conveyer carrier plates 3, and fixed guides 4. A plurality of the closures are discharged from the conveyer to respective delivery shoots 6, by a pusher member 7. Intermittent movement of the conveyer is derived by a drive chain 11 (Fig. 5) which passes over a drive sprocket 10 carried by a crank arm 9 which is rotatable around a shaft 8. The radius of rotation of the arm 9 is equal to the radius of the pitch circle of the sprocket 10.
Patent GB-1193569-A (GB)
Title: Rubber-Modified Thermoplastic Resin
IPC: C08L33/06
Filed: 1968-12-12
Abstract: 1,193,569. Rubber-reinforced resins. TOYO RAYON CO. Ltd. 12 Dec., 1968 [14 Dec., 1967; 17 Feb., 1968; 5 Aug., 1968]. No. 59104/ 68. Headings C3G and C3P. A rubber-modified resin comprises a thermoplastic resin having dispersed therein a finely divided rubber in an amount of 1 to 40 wt. per cent of the resin, the particles of the rubber component having the shape of an oblate spheroid of a ratio of minor axis to major axis of at most 0À5 and the average length of the minor axis being 0À05-10Á and the average length of the major axis being 0À1 to 60Á. The product can be obtained by stretching a sheet of a composition of resin containing spheres of rubber or stretching a graft polymer of resin forming monomers on a rubber backbone. The invention is particularly applicable to ABS polymers. The rubber-modified resin can be incorporated in polyvinyl chloride.
Patent GB-1408789-A (GB)
Title: Mechanisms of automatic cigarette lighters
IPC: F23Q2/16
Filed: 1972-12-21
Abstract: 1408789 Flint-ignited cigarette lighters ETABS GENOUD & CIE 21 Dec 1972 [6 Jan 1972] 59150/72 Heading F4F An automatic cigarette lighter has a serrated flint wheel 4 rotatable on rotation of a ratchetwheel 5 by depression of a control key 2 against a return spring 3, a pawl 13 for rotating wheel 5 being disposed at a free end of one line 12 of a generally V-shaped plunger member, the corresponding end of the other limb 11 thereof being joined to key 2, the pawl 13 and the key 2 and said plunger member being moulded in one piece from plastics material, and said limbs 11, 12 being sufficiently resilient to permit the pawl 13 to be displaced automatically transverse to their length simultaneously with movement of the plunger member in the operative direction during which pawl 13 engages and rotates wheel 5, and simultaneously with return movement of the plunger member during which pawl 13 is disengaged from wheel 5. In a gasfuelled lighter, a valve 8 is operated by a pivoted lever 14 engaging in an aperture 16 in limb 11 and key 2.
Patent GB-1360647-A (GB)
Title: Transportation system
IPC: B66B23/02
Filed: 1971-12-20
Abstract: 1360647 Transportation system F RODOT 20 Dec 1971 [29 Jan 1971 7 Dec 1971] 59166/71 Heading B7L  A transportation system comprises a channel C containing water caused to flow by ejecting fluid under pressure into the channel by slotted tubes as 4 and drawing in water by slotted tubes 5, and a vehicle having blades which are subjected to the thrust of the water thereby propelling the vehicle along tracks as la parallel to and straddling the channel on wheels 2. In the embodiment of Fig. 4, there are two blades 3a and 3b pivotable on horizontal transverse shafts 9a and 9b interconnected by a chain 37 so that when the front blade 3b is raised by a ramp Cr as before a station the rear blade is also raised to reduce the vehicle speed and they are held in the raised position by a solenoid device 32 to 35. An escapment device produces a gradual lowering to avoid water overflowing upstream, In the embodiment of Fig. 6, the blades 3 are pivotable about vertical axes and shoes 12 are urged by springs 13 against ramps 14 to give additional braking. In a modification a four-bladed turnstile on the vehicle engages retractable fingers on the channel wall to produce a 90 degree rotation of the blade 3 before and after a station. In the underground system of Fig. 6, the tunnels are or concrete and the channels are widened to extend under platforms 8 to reduce the speed of the vehicle. Alternatively the channel of a surface system may be deepened at a station for the same purpose.
Patent GB-1417977-A (GB)
Title: Vehicle steering mechanisms
IPC: B62D7/12
Filed: 1971-12-22
Abstract: 1417977 Steering vehicles CLARK EQUIPMENT Ltd 19 Dec 1972 [22 Dec 1971] 59841/71 Heading B7H In a vehicle steering mechanism comprising a pair of steering control wheels 24 of the same diameter, each fast with a mounting 12 for a steerable ground wheel 14, each control wheel 24 is rotatable about an axis 20 offset from its geometrical centre 70 in a direction away from the other wheel with means provided for rotating both the steering control wheels the same circumferential amount in order to steer. A rack 26 is in constant mesh with the pair of wheels 24 which are fast with a mounting 12 for a steerable ground wheel 14, the mounting 12 being carried by a bearing 16 in a plate 18. The left-hand wheel 24, as seen in Fig. 2, is mounted on a carrier 22 which is bolted to a gear 10 in constant mesh with a pinion 30 of a steering shaft 32. The rack 26 passes freely through a slide 52 pivoted on a plate 56 which is bolted fast on plate 18. In modifications, Figs. 4-6 (not shown), the rack has been replaced by a worm (60), or an endless chain (64) having tensioning pinions (66), or by an arrangement in which the chain (64) engages with sprockets mounted on extended axes (67) of pinions (69) engaging gear-wheels 24. In a further modification rack slide 52, Fig. 7, is mounted in bearing 72 on the centre 70 of each control wheel 24, the rack being guided by two pins 80 fast in the rack 26 and running in slot (82), Fig. 8 (not shown) in the slide 52.
Patent GB-1316539-A (GB)
Title: Character generating cathode ray tube device
IPC: B41J2/435
Filed: 1971-12-29
Abstract: 1316539 Cathode-ray tubes MATSUSHITA ELECTRONICS CORP 29 Dec 1971 [29 Dec 1970] 60335/71 Heading H1D In a monoscope for generating a video signal by scanning the electron beam over a selected character, the characters are defined by grooves in a signal plate 11, Fig. 5, thereby avoiding the need for the bridge portions which are required in a stencil electrode (Fig. 4, not shown). When the beam impinges on the surface of electrode 11 it causes emission of secondary electrons and thereby increases the potential; when the beam impinges on a groove the secondary electrons are captured at the walls of the groove so the potential is reduced. With a rectangular groove secondary electrons may escape when electrons impinge on the centre of the groove, thereby causing an undesirable change in the output signal; this may be avoided by making the depth of the groove equal to or more than 0À6 times its width, or by making the groove V-shaped or semi-elliptical (Figs. 10 and 11, not shown). The secondary electrons are collected by the anode 4 from which an antiphase output signal may be derived and differentially combined with that from electrode 11.
Patent GB-1279978-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: LINNING DAVID LEES
IPC: G21C9/027
Filed: 1968-12-20
Abstract: 1279978 Controlling reactors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 28 Oct 1969 [20 Dec 1968] 60866/68 Heading G6C In a nuclear reactor having a rotatable shield adjacent one end of the core for refuelling purposes, there being a plurality of fixed tubes penetrating the core but not the shield and in which tubes control rods for normal control and shut-down are axially movable by means disposed on the outside of the shield, additional shut-down equipment comprises a shut-down absorber element axially movable in each of at least some of the tubes, each element being normally disposed in a part of the respective tube which extends beyond the core boundary at that end of the core which is remote from the rotatable shield, means for inserting each element into register with the core for shutting- down the reactor, and means for operating the inserting means, the operating means being disposed outside the core boundary and out of axial register with the rotatable shield. As shown in Fig. 2, the inserting means comprise a helical compression spring 28 secured to a shoulder 29 of the shut-down element 18 at its upper end and supported at its lower end by a ledge 30 of a closure 19 of the part 17 of a control rod tube 16 which extends beneath the core. The invention is applied by way of example to a sodium-cooled fast reactor having a core 5 and axial breeder regions 6, also radial breeder regions (not shown). The spring 28 is held in its compressed state by a pressure differential across the element 18, the pressure above the element 18 being that of the sodium in the core vessel and the pressure below being at a considerably reduced pressure. A stem 26 of the element extends into the perforated upper end of a pipe 20 which leads to a suction pump near but beneath the surface of the liquid sodium in the main reactor vessel. When it is desired to shutdown the reactor as in an emergency, the drive to the pump is discontinued and the compression spring 28 is thereby released. In the reactor described, six such shut-down devices are used so that the likelihood of being able to insert two elements 18, sufficient to shut-down the reactor, is extremely high even if an incident such as a sodium vapour explosion, consequent on the occurrence of sodium boiling due to a fault condition, which leads to core distortion has occurred. The lower portion of the core, being associated with a rigid diagrid, is less likely to suffer distortion such as would prevent insertion of a shut-down element than is the upper portion into which the normal shut-down rods are inserted.