baber/WOPTO huggingface dataset:
Patent GB-1081208-A (GB)
Title: Convertiplane
IPC: B64C29/00
Filed: 1965-09-14
Abstract: 1,081,208. Convertible aircraft. A. KISOVEC Sept. 14, 1965, No. 39147/65. Headings B7G and B7W. An aeroplane has wing panels capable of rotation about a substantially vertical axis to enable it to function as a helicopter. The aircraft described has fixed inner wing panels 30 and outer wing panels 34 mounted on rotor shafts (38, Figs. 3 and 4, not shown) extending downwardly into pylons (44) on which jet propulsion engines 32 for forward flight are mounted. Each shaft (38) carries a brake wheel (150) and brake drum (180) with mating conical surfaces, the wheel being lifted off the drum during wing rotation by centrifugal force on a fly-weight, and by hand through a link (204, Figs. 12 and 13, not shown) prior to rotation. The wheel and drum also carry co-operating abutments (178, 184) to stop the rotor shaft in the desired position. The wing panels 34 are each rotated by a jet engine (80, Fig. 3, not shown), and are accelerated and retarded by separate rocket motors (84, 86, 88) and (82, 90, 92). A synchronizing shaft (94, Fig. 4, not shown) connects the two wing panels 34. A flapping hinge (46) is provided on the rotor shaft, with a damper (66) comprising a piston-andcylinder, the opposite ends of which communicate through a valve controlled by a flyweight, the arrangement being that the valve is closed and flapping is prevented when the wing panels are not rotating. Each wing panel 34 is balanced by a weight 54 on a telescopic arm 52 retractable by an actuator (74) into a recess in the fixed wing panel 30. The outer wing panels may be pivotable about a feathering axis (Fig. 18, not shown), or may have ailerons which are used for cyclic longitudinal, and collective control during the helicopter mode. A swashplate (236, 238, Fig. 4, not shown) is connected to a cyclic control rod (312) and to a lever (268) pivotally mounted with the swashplate on sleeves (214, 218) slidable for collective control by rods (310, 318). Hydraulic links (Fig. 14, not shown) comprising pistons (248, 274) in cylinders (250, 276), the opposite ends of which communicate with valves movable by flyweights (262, 284) to fix or free the pistons, connect the swashplate and lever (268), and the lever and an arm (288) fixed to the sleeve (214). Thus the lever (268) moves with the swashplate during wing rotation, and is fixed at one end during fixed wing flight so that the ailerons or wing panels (34) can only be moved by the rods (310, 318). The collective control rod (318) is moved by lateral movement of a control stick (340, Fig. 17, not shown) or by movement of the collective control (392). The cyclic control rod (312) is moved by operation of the rudder pedals (356) or fore-and-aft movement of the control stick (340).
Patent GB-1468118-A (GB)
Title: Clamping arrangement
IPC: C25D17/06
Filed: 1975-09-27
Abstract: 1468118 Clamps TRIDENT PLASTICS (PTY) Ltd 27 Sept 1975 39680/75 Heading B4W [Also in Division C7] A clamp for holding a workpiece in position in an anodizing bath comprises a clamp body 12 with a first contact tip 20 and a movable member, e.g. screw 14, which carries a second tip 18 in alignment with the first tip for clamping a workpiece therebetween, the clamp body and movable member being formed of or at least coated with a corrosion resistant plastics material and the two tips 18, 20 which are embedded in the movable member and clamp body respectively being formed of hard, wearresistant and corrosion-resistant material. The clamp 10 shown is formed from polyphenylene oxide and has clamping tips of titanium.
Patent GB-964775-A (GB)
Title: Improvements in or relating to magnetic core matrices
Inventor: METCALFE HARRY FRANCIS
IPC: G11C5/05
Filed: 1959-11-23
Abstract: 964,775. Magnetic storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 23, 1960 [Nov. 23, 1959], No. 39710/59. Heading H3B. A frame for mounting the cores of a magnetic storage matrix comprises a rectangular sheet of an elastic plastic material, e.g. " Alkathene " (Registered Trade Mark),- moulded to provide a lattice of support members, the members being arranged in pairs so as to define square apertures in which the cores are retained elastically and smaller rectangular apertures for accommodating the core wiring. The frame may include terminals on its outside edges and may be provided with a perforated rigid support during the moulding- operation.
Patent GB-1018261-A (GB)
Title: Magnetohydrodynamic generating system
IPC: H02K44/08
Filed: 1962-10-22
Abstract: 1,018,261. Generators operating by electromagnetic interaction with fluids. NIHON GENSHIRYOKU KENKYU SHO. Oct. 22, 1962 [Oct. 30, 1961], No. 39838/62. Heading H2A. The temperature of the working gas in a MHO generator system may be reduced and the same value of electrical conductivity obtained by subjecting the gas to a pulsating electric field during its travel down the generator duct. In the system described a closed circuit configuration is used and the rare gas, which may be seeded to enhance its conductivity, is heated in a nuclear reactor before passing through the generator duct from which it exhausts through a turbo-generator before being re-cycled by a compressor. Normally temperatures greater than 2000. K are required for the gas to be ionized and in thermal equilibrium, however, in this case, additional ionization using an electric field causes the same level of conductivity to be reached at a temperature of 1000 to 2000 K. A suitable duct construction (shown in Fig. 2) consists of current collecting electrodes 16 spaced apart along the duct 12 by insulating spacers 15 which surround the ionizing electrodes 13. The latter are supplied with 0À5 Á.sec. pulses of 10 K.volts from source 17 repeated every 500 Ásecs. assuming atmospheric pressure in the duct and a gas temperature of 1800 K.
Patent GB-1451331-A (GB)
Title: Abrasive sheet material
IPC: B24D11/00
Filed: 1973-08-24
Abstract: 1451331 Coated abrasives 3M UNITED KINGDOM Ltd 22 Aug 1974 [24 Aug 1973] 40310/73 Heading C4V An abrasive sheet material has a backing which comprises a laminate of at least one fibrous sheet and a dimensionally-stable preformed sheet of plastics material, the fibrous sheet being exposed at one face of the laminate, and a cured adhesive bonded to the opposite surface of the laminate, abrasive grains being embedded in the adhesive. The fibrous sheet may be of cellulosic material such as E weight cylinder paper. The plastics material may be a polyester and the sheet may have a thickness of 1-5 mils. In addition to the preformed plastics sheet a plastics net may be present which increases the shear strength and tear propagation strength. The plastics material may be bonded to the fibrous sheet by a thermoplastic resin preferably combined with a thermosetting resin. Suitable adhesives are phenolic, phenolicrubber, urethanes, epoxies and acrylics. Particularly preferred are synthetic thermosetting polyurethanes. A second sheet may be disposed between the plastics material and the abrasive material. A thermoset material is again preferred.
Patent GB-1014851-A (GB)
Title: Improvements in or relating to linking and nesting units
Inventor: STAFFORD JOHN MELVILLE
IPC: A47C3/04
Filed: 1960-11-23
Abstract: 1,014,851. Chairs, tables etc.; securing in rows. STAFFORD PATENTS & HOLDINGS Ltd. Nov. 17, 1961 [Nov. 23, 1960], No. 40353/60. Heading A4U. Nesting chairs, tables &c. have two pairs of legs 3, 4 and 5, 6 connected by integral tubular members 7, 8 so that the legs 3, 5 are wider apart than the legs 4, 6. Clips 15 are provided either on the inside of the legs 3, 5 or on the outside of the legs 4, 6 so that the two chairs &c. can be linked side by side with the legs 4, 6 close to and within the legs 3, 5.
Patent GB-972216-A (GB)
Title: Electrolytic switch
Inventor: ENGEL ERNEST EMIL OTTO
IPC: H01H29/06
Filed: 1961-11-13
Abstract: 972,216. Conducting-liquid switches. ENGEL & GIBBS Ltd. Nov. 13, 1962 [Nov. 13, 1961], No. 40573/61. Heading H2B. A tilting switch contains an electrolyte consisting of a solution of an inorganic halide or sulphate in methyl alcohol. The electrode is of platinum, the bright surface of which is coated with a film of platinum black.
Patent GB-966389-A (GB)
Title: Improved method and apparatus for the manufacture of shoes
IPC: A43D21/12
Filed: 1960-11-25
Abstract: 966,389. Boots &c. A. MATTIL, [trading as MATTIL KOMM.-GES.], E. LILLBOB, and W. NEUMAYER. Nov. 25, 1960 [Nov. 28, 1959; April 1, 1960], No. 40681/60. Heading A3B. The margin of the upper clamped on to a last by one or more clamping means 19 is brought between an upwardly directed gripping means 207 formed according to the sole outline, said gripping means is partly closed to hold the margin of the upper, the clamping means is withdrawn, then the gripping means is completely closed and stretches the margin slightly under the insole and finally the upper is wiped under the last by multipart wipers. In the more elaborate form the invention, Fig. 6, the clamping means 49 consists of toothed toe-cap, heel and side portions slidably connected together by an intermediate part 69. The clamp is opened and closed via the arms 55 by rotation of the hand wheel 59 directly connected to the spindle 57. The gripping member 207 may consist of screw-spindle operated inner and outer components arranged to move in four guide slots 210 in a table 150 (Fig. 7). Needles 234 are provided on the inner components to penetrate the leather when it is gripped between the components 212 and 214 and to pass through corresponding apertures provided in the outer components, said needles passing through recesses adjacent to the teeth in the clamping member. In Fig. 10 (not shown), the side grippers have tongue-shaped portions overlapping similar portions of the heel and toe grippers. The outer gripping members of the toe grippers may be moved pneumatically and supported on an angle piece which is itself adjustable by screw means (Fig. 11, not shown). Air operated pistons may replace the screw actuators of Fig. 7.
Patent GB-959291-A (GB)
Title: Pit-prop
IPC: E21D15/28
Filed: 1960-11-28
Abstract: 959,291. Telescopic pit props. K. GERLACH, and H. GERLACH. Nov. 28, 1960 [Nov. 26, 1959], No. 40846/60. Heading E1E. A telescopic pit prop is provided with a friction lock 3 incorporating a wedge 4 and a swivel bearing 7 which pivots about on axis disposed longitudinally of the prop and slides about a concave surface 9 in the prop member 1. The member 7 is provided with a cam 11 and circumferentially-extending slots 14 defining narrow slide surfaces which may in a modification be defined by weld beads. The member 1 is made of steel and may be wedge-shaped whilst the swivel bearing is made or coated with silicon-bronze or incorporates fillets thereof in the slots 14. Specifications 737,661 and 777,568 are referred to.
Patent GB-1401472-A (GB)
Title: Selective temperature control of catalysts
IPC: C07C5/13
Filed: 1972-09-06
Abstract: 1401472 Reactions with dual-function catalysts TEXACO DEVELOPMENT CORP 6 Sept 1972 41224/72 Heading B1F The radio frequency field of a high frequency induction heater is used in a catalytic reaction, e.g. decomposition and hydrogenation of methylcyclopropane into butane and isobutane in which a fluid chemical is passed through a reaction zone having a predetermined zone temperature in contact with a solid dual-function catalyst (as defined below) comprising a relatively non-electrically conducting catalytic constituent and an electrically conductive catalytic constituent, the radio frequency field being applied to raise the temperature of the electrically conductive catalytic constituent to a second predetermined temperature: The dual function catalyst is defined as being composed of two types of catalytically -active constituents, each of which simultaneously promotes a different reaction. The electrically conductive catalytic constituent may be nickel, iron, cobalt or platinum-iron mixture, and the relatively non-electrically conducting catalytic constituent may be silica, alumina, azeolite or a mixture thereof.
Patent GB-1497445-A (GB)
Title: Pneumatic tyres for aeroplanes
IPC: B60C11/01
Filed: 1975-10-10
Abstract: 1497445 Pneumatic tyres BRIDGESTONE TIRE KK 10 Oct 1975 [23 Oct 1974] 41677/75 Heading B7C A pneumatic tyre for an aeroplane has circumferentially extending grooves 5, 6 spaced apart by a distance D equal to between 50% and 95% of the width TW of the tyre tread, lateral portions 3, 4 of the tread each projecting outwardly beyond the extended profile A of the centre portion 2 of the tread by a distance d of between 0À5 and 6 mm. The tread width TW may be equal to between 70 and 97% of the tyre cross-sectional width SW. As illustrated, the tread centre portion 2 has a central groove and is convex, considered in radial cross-section, in the as-moulded condition. In modifications of the illustrated tyre, the tread centre portion may comprise two further grooves and may be rectilinear or concave, considered in radial cross-section, in the as-moulded condition.
Patent GB-960486-A (GB)
Title: Improvements in feeding and screening apparatus
Inventor: LEONARD DANIEL CARL
IPC: B07B1/16
Filed: 1961-11-23
Abstract: 960,486. Screening apparatus. ROSS ENGINEERS Ltd. Aug. 27, 1962 [Nov. 23, 1961], No. 41975/61. Heading B2H. Feeding and screening apparatus comprises an apron of parallel bars 1a, 1b arranged to be driven by an endless chain, one or more lengths of chain 3, anchored to the rear end 5 of the apparatus to lie in the bed of material, being provided to bring about a stirring of the bed of material on the apron to allow fines to work their way down to the apron and be screened out. The screening apparatus is of the kind in which alternate bars of the apron are arranged to drop from their position in the plane of the apron to hang below adjacent bars as the apron moves in its return travel as shown in Fig. 6. This greatly increases the apertures between the bars, and allows the screened out fines to fall through the apron. The one or more lengths of chain may be disposed side by side or one above the other and may vary in shape and diameter, as for the upper length of chain in Fig. 6 which is arranged to create least disturbance in the material where it enters from a hopper, the diameter of the chain then being increased to approximate to the apertures between the parallel bars. The same effect may be created by bifurcating or trifurcating a single chain or by use of the arrangement shown in Fig. 5. The chain anchorage may be resilient so that the chain may move slightly to clear a jam, springs or hydraulic or pneumatic devices being used, and the chain anchorages may incorporate a device for sensing major alterations in the load on the chain, for example when a chain snaps or when it is jammed by material.
Patent GB-1166549-A (GB)
Title: Improvements in Tensioning Devices for a Number of Strips being Wound on a Mandrel
IPC: B21C47/28
Filed: 1967-09-19
Abstract: 1,166,549. Web-tensioning roller. SOC. DE CONSTRUCTIONS MECANIQUES DE CREIL (C.O.M.E.C.) S.A. 19 Sept., 1967 [20 Sept., 1966], No. 42677/67. Heading B8R. [Also in Division F2] A device for tensioning a number of strips to be wound about a common mandrel comprises a separate tensioning roller having a plurality of freely-rotating crowns which can be braked by an axially exerted force, and a casing partially housing the roller into which air or compressed gas is introduced to force the strips into contact with the crowns. Fig. 1 illustrates a general arrangement in which strips are led round a barrel 1 fixed to arbour 3; the strips are pressed into contact with freely rotating crowns 4 by means of air or compressed gas introduced through inlets 16 into casing 15, an effective seal 17 between the casing and the strips being provided. Fig. 3 illustrates the braking system which ensures a constant braking action on strips, e.g. 20, 21, led around the roller. The crowns 4 are separated from each other by thin friction discs 5 which engage at 6 with longitudinal grooves 7 in the barrel 1; the discs therefore rotate with the barrel, and both the discs and the crowns are axially slidable. The barrel carries a fixed annular abutment (8) at one end (Fig. 2, not shown), and a further fixed abutment 9 at the other end; an annular interposed piece 13 is movable under the controlled action of inflatable toric tube 11 to force the crowns 4 against the discs 5, thus braking the rotation of the crowns and applying a uniform tension to the strips. The barrel 1 and arbour 3 can, if desired, be given a controlled rotation.
Patent GB-1324495-A (GB)
Title: Pyrophoric lighters
IPC: F23Q2/48
Filed: 1971-09-15
Abstract: 1324495 Flint urging devices for lighters S T DUPONT 15 Sept 1971 [15 Sept 1970] 42934/71 Heading F4F A pyrophoric lighter which operates by rubbing a knurled wheel 1 against a flint 9 comprises a flint urging device in the form of a spring 7 and a spring guide 6 which bears against the flint at a point 18 and also bears against the body of the lighter through the intermediary of a pivoted cover 4 to which cover the urging device 6, 7 is pivoted at 8, so that when the device 6, 7 is moved into its urging position the pivot 8 passes below a line AA joining the point 18 and a pivot 5 of the cover thereby maintaining the urging device in position. The spring guide 6 takes the form of a telescopic tube comprising parts 10 and 11 but alternatively the part 11 may be replaced by a rod inside the spring which rod slides in an apertured member replacing the part 10. A lateral spring 15 is provided in the cover to urge a ball at each end of the spring into a recess formed in a cradle 2 of the lighter, thereby holding the cover in place.
Patent GB-1049613-A (GB)
Title: Electric circuit with non-linear dielectric element
IPC: H03C3/20
Filed: 1963-11-01
Abstract: 1,049,613. Temperature sensitive dielectrics. CESKOSLOVENSKA AKADEMIE VED. Nov. 1, 1963 [Nov. 3, 1962; Dec. 18, 1962; March 15, 1963], No. 43209/63. Heading H1K. [Also in Division H3] A non-linear capacitance circuit comprises a capacitor having a dielectric, e.g. triglycine sulphate, the imaginary component of the dielectric constant of which decreases with rising temperature over a certain range and a source of alternating current the frequency and voltage of which may be varied together or independently to bring the dielectric temperature by dielectric heating to a point just above the Curie temperature at which the rate of change with voltage of the real component of dielectric constant is a maximum. It is shown in the Specification that this operating condition is autostable, the dielectric temperature being substantially independent of changes in ambient temperature, power supplied and rate of heat loss. The arrangement can thus be used to maintain an enclosure at a predetermined stabilized temperature. Since the operating point also substantially coincides with the maximum rate of change of dielectric constant with applied voltage the dielectric can be thus operated as part of a high-frequency dielectric amplifier, modulator or frequency mixer or multiplier circuit as described in Division H3 to give enhanced results.
Patent GB-1522976-A (GB)
Title: Method of treating surfaces
IPC: C09C3/12
Filed: 1975-10-21
Abstract: 1522976 Treating surfaces for coating with polymers DYNAMIT NOBEL AG 21 Oct 1975 [31 Oct 1974] 43225/75 Heading B2E [Also in Division Cl] The surface of a substrate, e.g. of iron, copper, zinc, aluminium, brass, bronze, glass fibre, a silicaceous substance such as quartz, mica, asbestos, aluminium silicate or kaolin, an oxidic surface such as oxidised iron or titanium or a carbonate-containing mineral such as chalk, which is to be coated with a polymeric material, e.g. natural or synthetic rubber, polyvinyl chloride, or a resol resin, a furan resin, an epoxide resin or a polyurethane, is treated to improve its receptivity to the polymer by application, e.g. by immersion spraying or spreading, preferably at below 30‹C, of an aqueous solution comprising an oxidised mercaptosilane which before oxidation has the general formula:- wherein R is a C 1-8  alkyl or alkoxyalkyl radical, R' is a monovalent C 1-4  hydrocarbon radical, R" is a divalent C 1-10  hydrocarbon radical, y is 0 or 1, and x is 0, 1, 2 or 3, the R radicals being the same or different when x is greater than 1, and the R' radicals being the same or different when x is 0 or 1, and then drying the treated surface. The aqueous mercaptosilane, which is oxidised to the disulphide compound, may be oxidised with oxygen in the presence of a catalyst, e.g. iron or copper, or an oxidising agent such as hydrogen peroxide. The aqueous solution may be water or aqueous C 1-4  alcohol or water with any other solvent that promotes solution of the mercaptosilane. In the Example, glass-fibre filaments are prewetted with water then are treated according to the invention and then coated with epoxy resin and formed into bars before hardening of the resin.
Patent GB-1473405-A (GB)
Title: Electrolytic cells
IPC: C25B9/17
Filed: 1974-10-08
Abstract: 1473405 Anode support for electrolytic cell SOLVAY & CIE SA 8 Oct 1974 [19 Oct 1973] 43513/74 Heading C7B In an electrolysis cell housing alternating vertical and parallel anodes and cathodes, the anodes are mounted on at least one support passing in a leakproof manner through the cell baseplate, the support also supporting at least part of the baseplate and itself resting on a current lead which rests on at least one prop below the base-plate. In the Figure, anode 8 of Ti with an active coating of Pt group metal and/or oxide, is supported on rod 16 of Ti or of Cu or Al with an upper coating of Ti, chlorinated PVC or PTFE. The rod passes through base-plate 7 of Ti, chlorinated PVC or PTFE and clamps it between flange 28 with seal 30 and threaded nut 29. The base-plate may be flexible. The rod rests on current lead-in bar 17 of Cu or Al and is secured by bolts 18. Each bar 17 is supported by one or more props 21 constituted by adjustable threaded rods 23 having a terminal convex portion 25 which locates in a concavity 26 on the bar 17. Rods 23 are secured to part of the main cell support framework. Positioning elements (27), Fig. 1 (not shown) prevent mislocation of bars 17. The cell may have a diaphragm (as shown) or not and is useful in production of chlorate, hypochlorite and chloralkali from alkali metal chlorides.
Patent GB-1029021-A (GB)
Title: Improvements relating to building panels
Inventor: DAVIDSON JOHN WINGATE
IPC: E04C2/24
Filed: 1961-12-05
Abstract: 1,029,021. Laminates. GREATER LONDON COUNCIL, J. W. DAVIDSON, C. R. BROOKS, and E. J. VOISEIY. March 5,| 1963 [Dec. 5, 1961], No. 43590/61. Heading B5N. [Also in Division E1] Building panels each comprising a filling layer 3 contained within an outer tray-shaped skin 1 of a fibre-reinforced synthetic resin material and backed with asbestos board 4, are of storey height and are provided with a metal reinforcement 2 secured on the inner surface of the skin 1. Fig. 3 shows that part of a panel which lies between a window aperture and a sealing strip 7 provided on the panel edge, the filling layer 3 being of foamed polyurethane, foamed concrete, asbestos fibre, or compressed vermiculite. The fibre reinforced synthetic resin material is a polyester, epoxy, or silicone resin reinforced with glass fibres, or is an asbestos filled phenolic resin.