baber/WOPTO huggingface dataset:
Patent GB-1525985-A (GB)
Title: Arrangements for tapping signal power from optical fibre waveguides
IPC: G01M11/00
Filed: 1975-11-10
Abstract: 1525985 Tapping an optical fibre WESTERN ELECTRIC CO Inc 10 Nov 1975 [11 Nov 1974(3)] 46437/75 Heading G1A [Also in Division G2]  An arrangement for tapping signal power from an intermediate portion without breaking optical fibre 22 (Fig. 2B) comprises a coupling material 28 disposed in coupling relationship with and laterally offset from the portion to couple power therefrom and having a refractive index such that optical power is coupled out of the core of the fibre, and a photo-cell 24 serving to intercept such coupled out power. Cladding is stripped from fibre 22 for a limited length. Body 28 is an optically transparent cement, e.g. an epoxy, and should be within three optical wavelengths of the fibre. Photo-cell 22 may be a p-i-n photodiode or an avalanche photodiode. In the embodiment of Fig. 3B, fibre 32 is between respectively hard and compliant discs 37, 38 with refractive indices respectively equal to or lower than and equal to or higher than that of the cladding. Brass holder 39 comprises rectangular cross-bar 39À2 soldered diametrically across annular base 39À1. Disc 37 is a tight fit in hole 41 or may be glued. The embodiment of Fig. 5A (not shown) is similar to that of Fig. 2A but the fibre is bent into a curve to obviate cladding removal. The embodiment of Fig. 6 also uses this principle and has a compliant coupling disc 68 of PVC and a hard disc 67 with a curved lower surface. An arrangement for adjusting the pressure of disc 67 and thus the amount of power tapped off is described in Fig. 7 (not shown). Fig. 8A shows another embodiment using this principle. Holder 89 is a rectangular block of refractive index lower than that of the cladding and contains a coupling region 93 of refractive index equal to or greater than that of the cladding and of thickness equal to that of curved groove 91, which may be smeared with index matching fluid. Fig. 11A shows a mode coupling means combined with a fibre tap 140. Mode coupling plates 144, 145, one or both corrugated, are adjustably pressed against fibre 142 to provide a deformation with a spatial periodicity equal to the heat wavelength between a pair of modes, thereby increasing the proportion of power in the higher order  modes, thus increasing the power from tap 140. Power can also be coupled by the mode coupling means from the core to the cladding, which thus need not be removed for the tap.
Patent GB-1023367-A (GB)
Title: Improvements in electric cables
IPC: H01B9/02
Filed: 1964-11-16
Abstract: 1,023,367. Cables. FELTEN & GUILLEUME CARLSWERK A.G. Nov. 16, 1964 [Nov. 16, 1963], No. 46560/64. Heading H1A.  A three-phase cable has an outer concentric conductor for providing mechanical and/or electrical protection and consists of at least two layers 5, 6 of wires which are helically wound with opposite and periodically reversed lays. The regions of changeover of the direction of lay are arranged at equal distances in both layers and are offset from layer to layer. The insulated conductors 1 are covered with an insulating sheath 2 of, e.g., P.V.C. or polyethylene, and an outer P.V.C. sheath 10 encases the wire layers 5, 6. A thread 9 of non-conductive or poorly conductive materali binds wires of the concentric conductor together. The wire layers may be of copper or aluminium and may encase single or multicore cables.
Patent GB-1294740-A (GB)
Title: Apparatus for making mats or mineral fibres
IPC: D04H1/00
Filed: 1970-10-01
Abstract: 1294740 Resin-fibre composite J C WARDEN (OWENS CORNING FIBERGLAS CORP) 1 Oct 1970 46634/70 Heading D1R A mixture of glass fibres and an aqueous solution of A stage phenolformaldehyde resin resite, i.e. having excess formaldehyde, is sucked onto moving foraminous belt 30 whilst vertical endless belts 54 move in the opposite direction. A furnace 10, delivers molten glass 18 to forming stations 14, which consist of motor driven centrifuges 22. The glass travels via hollow rotating shaft 20 to a rotating foraminous basket 26, and is then flung out as a plurality of molten streams. These are attenuated and dispersed by downward flowing streams of gas, and are deposited on belt 30 together with aqueous binder introduced by nozzles 64. The random air-laid web is compressed by roller 48 and cured by oven 52. The endless vertical walls 54 comprise vertical elements 42, fastened to and carried by top and bottom roller chains which move about sprockets forming head pulleys 56 and tail pulleys 58. Resin and/or fibres collected on the walls 54 pass through a gap between end wall 44 and movable walls 54 and are removed from the vicinity of the web and washed from the walls by water from nozzles 64 with the aid of squeegee 78. The spaces between vertical elements 42 open up as the elements pass pulleys 56, thereby facilitating washing. The wash liquid is collected in pan 66 and separated from the fibres in separator 68. Most of it is recirculated by pump 70, but a portion is pumped to tank 74 where fresh binder is added to that already dissolved in the wash water, and the full strength solution is fed to nozzles 50. A current of air flows through a gap between vertical movable walls 54 and conveyer 30.
Patent GB-1068548-A (GB)
Title: Improvements in or relating to counter-boxes
Inventor: STOTEN TERENCE ARTHUR
IPC: G01F15/06
Filed: 1964-11-18
Abstract: 1,068,548. Counters. GEORGE KENT Ltd. Nov. 11, 1965 [Nov. 18, 1964], No. 46966/64. Heading G4D. A counter box for use with a fluid flow meter comprises a rotary counter wheel (3), Figs. 1 and 2 (not shown), displayed beneath a window (8) or a transparent panel in an outer casing (7), the window or panel extending into two sides of the casing. The counter box is mounted on the meter by clamping ring (13) so that on slackening of the ring it may be rotatably displaced. The dial plate (6) carries means, e.g. a marker line for indicating the readings from another counter (12).
Patent GB-1372093-A (GB)
Title: Coalesced mode coupled cavity slow wave tube
IPC: H01J23/24
Filed: 1971-10-08
Abstract: 1372093 Travelling-wave tubes VARIAN ASSOCIATES 8 Oct 1971 [16 Nov 1970] 47025/71 Heading H1D A coalesced-mode coupled-cavity slow-wave structure of a travelling-wave tube has two opposed and axially aligned sets of coupling slots 7 and 18, respectively, formed in the common end walls of the cavities. Preferably the slots are dimensioned to produce a slat mode pass-band low frequency edge which coalesces with the cavity mode pass-band high frequency edge. In an alternative embodiment, the cavity end walls are square and the slots rectilinear (Fig. 6, not shown).
Patent GB-1213135-A (GB)
Title: Method and apparatus for cleaning contaminated gases
IPC: F27B1/18
Filed: 1967-10-16
Abstract: 1,213,135. Gas scrubbing. AJEM LABORATORIES Inc. 16 Oct., 1967 [14 Oct., 1966], No. 47091/67. Heading B1R. Dust-laden gases, e.g. from a cupolafurnace 10, are passed into a downcomer 12 in which they are first saturated with water vapour by passage through a curtain of water formed by a group of rotary spray-generators, two of which 52 and 54 are shown, each spraygenerator producing a fan-shaped pattern of spray, before being cooled in the lower part of the downcomer to condense some of the water vapour in the gases, thereafter the gases pass into an upwardly extending limb of a conduit 30 and then downwardly to a scrubber 32 a droplet eliminator 38 and a stack 40. Air may .be added to the gases by means of a tangentially-directed inlet located a short distance below sprays 52 and 54 and the mixture is passed through a funnel-shaped insertion in the downcomer to promote mixing. Dust and water are removed from sump 16. The scrubber 32 is preferably of the rotating-cage type.
Patent GB-1376769-A (GB)
Title: Air-fuel ration sensing system
IPC: F02D41/14
Filed: 1972-10-13
Abstract: 1376769 Determining air-fuel ratio electrically FORD MOTOR CO Ltd 13 Oct 1972 [15 Nov 1971] 47329/72 Heading G1N [Also in Division F1] The air-fuel ratio of a gas mixture supplied to a combustion mechanism, e.g. an I.C. engine, is determined by locating in the gas mixture, or the exhaust gases leaving the mechanism a sensing member 22 consisting of a metal compound containing oxygen atoms and having at least two metal oxidation states of approximately equal energies and being capable of reduction or oxidation from one state to the other in proportion to the equilibrium oxygen pressure of the gaseous mixture contacting the sensing member, and a pair of electrodes 38, 40 attached to the metal compound, means 44 being provided to measure the electrical resistance across the electrodes to provide a measure of the air-fuel ratio. As shown, the sensing member consists of three discs 30, 32, 34 of titanium dioxide particles, electrodes 38, 40 and a thermocouple 42 being embedded between discs 32, 34 and an electrical heating wire 36 being embedded between discs 30, 32. The assembly is then pressed and fired to form a unitary structure. The thermocouple and heating wire combine with a power supply 46 and control 48 to control the temperature of the member 22. The electrodes and heating wire may be formed of platinum and the thermocouple of a goldpalladium-platinum and gold-palladium combination. Other metal compounds which may be used in the sensing member include vanadium oxide, chromium oxide, manganese oxide, iron oxide, nickel oxide, cobalt oxide, cerium oxide and praseodymium oxide. The sensing member may be used in a control loop for automatically controlling air or fuel supplies to produce or maintain desired air-fuel ratios.
Patent GB-1148642-A (GB)
Title: High velocity aircraft window
Inventor: HOFF GUENTER
IPC: B64C1/14
Filed: 1966-10-24
Abstract: 1,148,642. Aircraft window. DORMER SYSTEM G.m.b.H. 24 Oct., 1966, No. 47492/66. Heading C1A. [Also in Division H4] An aircraft window is made of monocrystalline sapphire, spinel, MgO or rutile. The window may be used to transmit light, I.R. radiation, or radar, e.g. I.R. windows used to protect optical instruments, and radar noses. " Aircraft " includes rockets and spacecraft.
Patent GB-1104260-A (GB)
Title: Crane attachment for ships
IPC: B63B27/36
Filed: 1966-10-24
Abstract: 1,104,260. Ship's cranes. OCEAN SYSTEMS Inc. 24 Oct., 1966 [23 Oct., 1965], No. 47553/66. Heading B8B. Swinging of a load 12, Fig. 1, supported by a ship's crane 11, is prevented by a braked gimbal mounting 53 which supports a guide 39 for a lifting cable. The mouth 68, Fig. 2, of the guide 39 mates with a conical projection 41 on a load-supporting plate 40. The load is thus rigidly attached to the guide 39, swinging of which can be controlled by the crane operator in two mutually perpendicular planes. The gimbal mounting is supported on a jib 20, Fig. 1, pivoted to a luffable telescopic boom 16, 18. The cable 30 is taken in by a ram 31 and pulleys 35, 42. The gimbal brakes are hydraulically operated. Guide member 39 may be provided with a smaller mouth with a plurality of legs, Fig. 4 (not shown).
Patent GB-1062709-A (GB)
Title: Improvements in and relating to heat-recoverable articles
IPC: B29C63/38
Filed: 1963-07-23
Abstract: 1,062,709. Container closures. RAYCHEM CORPORATION. July 23, 1963 [July 23, 1962], No. 47621/66. Divided out of 1,062,043. Heading B8T. [Also in Divisions F2 and H2] A tubular article for use in sealing bottles, comprises an elastomeric tube which has been distorted and frozen in the distorted condition, and a tube of solid fusible material within the deformed tube so as to be in the path of recovery of that tube. In use, the article is arranged around the part to be sealed and its temperature is then allowed to rise to room temperature so that the fusible material melts and the elastomeric tube returns to its original size so as to urge the material of the fusible tube into sealing engagement with the part. The arrangement has many other applications (see Divisions F2 and H2).
Patent GB-1500690-A (GB)
Title: Plastic coating for steel sheet
IPC: E04F13/08
Filed: 1973-10-17
Abstract: 1500690 Laminates POLYCYL (ENG) Ltd 9 Jan 1975 [17 Oct 1973] 48274/73 Heading B5N [Also in Division E1] A method for making a panel module for use in the external cladding of buildings comprises cutting one or more panels from sheet metal having on a first face a pre-deposited decorative and/or corrosion resistant coating, and, where the panel module comprises a plurality of the sections, joining them edge to edge to form the module, and bonding or moulding in moisturetight manner at least along a peripheral edge of the panel on the second and uncoated face thereof, a strip or sheet of reinforced plastics material which extends beyond the peripheral edge and includes a flange or rib adapted to form a fixing for the module and to butt against or interengage with a complementary flange or rib of an adjacent module during cladding of a building so that the joint between the modules may be made resistant to penetration by moisture. The metal sheet may be of steel, steel alloy, aluminium or aluminium alloy. The coating may be a plastics sheet, a plastics or inorganic paint or may be based on vitreous glass. When a single metal section is used, the plastics flange may be of angle section with one leg applied to the section and positioned relative thereto that the leg extends beyond the edge of the panel section and forms a rearwardly directed flange. Alternatively, when a sheet of plastics is used, the sheet extends beyond the edges of the panel section and has integrally formed rearwardly directed flanges. In the embodiment shown in Fig. 3, the module comprises coated metal sheets 1 and 1<SP>1</SP> welded together with abutted edges 5 and covered by reinforced plastics 2, 2<SP>1</SP> having flanges 3, 3<SP>1</SP>. In the embodiment shown in Fig. 4, the two coated metal sheets 1, 1<SP>1</SP> are associated with reinforced plastics strip 6 and edge pieces 3, 3<SP>1</SP>. The module of Fig. 5 consists of a metal sheet 1 carrying a decorative and/or corrosion resistant coating on its top face, end pieces 7 of reinforced plastics carrying outwardly extending ribs 10, backing sheet 8 and optionally a foamed core 9. In the similar embodiment shown in Fig. 6, a layer 2 of reinforced plastics material extends between the end pieces 7 and is bonded to the sheet.
Patent GB-1061095-A (GB)
Title: Improvements relating to the production of neuraminidase
Inventor: STACY MAURICE
IPC: C12N9/24
Filed: 1962-12-21
Abstract: Neuraminidase is produced by culturing Klebsiella aerogenes (NCIB 9479), Bacillus palustris (NCIB 9480) or Rhodopseudomonas palustris (NCIB 8252) in a nutrient medium in the presence of a "neuraminidase-inducing substance," i.e. a substance having the residue of a neuraminic acid derivative as a non-reducing end group in a complex molecule, e.g. 31-neuramin-lactose and derivatives of carbohydrates, mucoproteins, hormones and mucolipids containing bound neutaminic acid derivatives, sialomucopolysaccharides, a 1-glycoprotein and other glycoproteins present in sera or urin, mucoproteins found in mucus, gastric juice, saliva, sputum, pleural and ascitic fluids, gangliosides and other mucolipids present in brain, spleen, liver, or erythrocytes and follicular stimulating hormone and sialomucopolysaccharides, mucoproteins and mucolipids derived from bacteria.  A convenient source is a crude dialysate of cow colostrum. Preparations containing the enzyme may be obtained by dialysing the filtered culture medium after use and lyophilisation of the nondialysable portion, optionally after additional purification by ammonium sulphate precipitation. The Provisional Specifications are wider as to the microorganisms which may be used.
Patent GB-1172529-A (GB)
Title: Method of Manufacturing a Composite Metal Article
IPC: B22D19/00
Filed: 1966-10-28
Abstract: 1,172,529. Casting composite articles; welding by pressure. TEXAS INSTRUMENTS Inc. 28 Oct., 1966 [1 Dec., 1965], No. 48393/66. Headings B3F and B3R. In a method of manufacturing a sole-plate for a flat-iron a shaped laminated stock material comprising a stainless steel layer 3, an aluminium layer 5 and a bonding layer (7), (Fig. 2, not shown), is placed in a mould die cavity, heated until the bonding layer melts and then casting thereon an aluminium base layer by injecting molten metal into the die cavity. The melted bonding layer (7) combines with the injected molten aluminium to form an alloy layer 19. The bonding layer (7) may be a braze alloy or a solder alloy or may be substantially zinc. The laminated stock material is formed by solid-phase metallurgical bonding. In a reference to prior art a metal base is cast on to a stainless steel layer that has a rough surface formed by spraying with a layer of metal such as nickel to improve adhesion of the cast-on base.
Patent GB-1278959-A (GB)
Title: Tailstock assembly in a friction welding machine
IPC: B23B31/12
Filed: 1969-10-02
Abstract: 1278959 Friction welding CATERPILLAR TRACTOR CO 2 Oct 1969 [11 Dec 1968] 48574/69 Heading B3R  In a tailstock assembly 10 of an inertia friction welding machine wedge blocks 38, 40 are secured to a base member 30 and tapered blocks 34, 36 are actuated to slide adjacent the wedge blocks to grip a non-rotatable workpiece 32. The base member 30 moves along bars 26, 28 and the tapered blocks 35, 36 are actuated by pistons 52, 54, which are pivotally connected to the base member, acting in cylinders 44, 46 whose ends are connected to the tapered blocks 34, 36. Springs 45 are provided to bias the tapered blocks towards a clamping position and an additional force is supplied by hydraulic fluid pressure via conduits 78. The base member 30 is moved by hydraulically actuated pistons 20, 22 which have a passage provided in them to supply the cylinders 44, 46 with pressure fluid. A bar 80 connects the two tapered blocks 34, 36 so that they move in unison and shim packages 60, 62 control the centring of the weld piece 32. An automatic loading mechanism 24 is provided to feed the blocks with workpieces 33. The loading mechanism comprises a hopper 64, Fig. 2, holding a supply of workpieces 33 the bottom one of which drops into a shoot 66, carrying a string of workpieces, as the assembly 12 is drawn to the left after welding and in so doing the welded piece 32 is forced out of the blocks 34, 36 by means of the surfaces 82, 84 on the last workpiece in the shoot and on the bottom workpiece in the hopper abutting each other. The assembly 12 is then moved to the right for welding and plate 68 thus abuts the bottom workpiece 33. In a modification the cylinders 44, 46 are hydraulically doubly actuated and the springs 45 are dispensed with. A relief is provided at the centres of the sliding edges of the wedge blocks and tapered blocks so that corresponding shoulders of the blocks may slide into the reliefs to allow the block to be opened a relatively large distance for the workpiece to be removed. Springs are provided in the passage containing the connecting pin 80 to urge the blocks toward an open position. These springs may be replaced by a small roller attached to each block and allowed to roll in a stationary cam slot.
Patent GB-1372645-A (GB)
Title: Heat vapour differential engine
IPC: F03B17/02
Filed: 1972-10-23
Abstract: 1372645 Turbines; vapour engine power plant G O SCHUR 23 Oct 1972 [12 Nov 1971] 48650/72 Headings F1Q and FIT A vapour power plant comprises a sealed casing containing a low boiling point liquid 36, e.g. methylene chloride, and a turbine rotor 29, a heating fluid being supplied through pipe 39 to a chamber 37 enclosing a vapour producing unit 41 having cells 42 and vertical pipes 43 which release vapour bubbles into liquid 36. The bubbles rise and are directed through the discharge opening 44 of conical chamber 12 into pockets 34 of rotor 29 causing the latter to rotate before the bubbles rise further and are condensed in finned mushroom-shaped chamber 14. The end discs 51, 52 of rotor 29 have shafts 27, 28 which are respectively journalled in cups 25, 26 integral with plates 22, 23 bolted over circular openings in the casing. External discs 45, 46 carrying power take-off pulleys 56 are journalled on the exterior of cups 25, 26 respectively via spacers 49, 50. Rotation of rotor 29 is transmitted to discs 45, 46 via magnetic couplings formed by circumferentially spaced magnets 53 on rotor end discs 51, 52 co-operating with magnets 54 on discs 45, 46. The latter are retained on cups 25, 26 solely by magnetic attraction. The heating fluid entering chamber 37 through pipe 39 may be water e.g. heated by the sun or from hot springs. When pulley 56 drives an electric generator (71), Fig.9 (not shown) having a cooling fluid jacket (72) the fluid in pipe 39 may be additionally heated by passage through the jacket. In a modification Figs. 7, 8 (not shown) the turbine is formed as a vertically supported endless belt (60) having cups (64) and which passes over top and bottom rollers (61, 62) journalled within the casing, the power output being transmitted by magnets (53) on the bottom roller.
Patent GB-1069273-A (GB)
Title: Improvements in and relating to hydraulically moved control devices for the lower ejection plungers in moulds for tiles and the like objects of ceramic material
IPC: B28B3/02
Filed: 1963-12-11
Abstract: 1,069,273. Ejecting moulded articles. U. WALCHHUTTER. Dec. 11, 1963 [Dec. 11, 1962], No. 48939/63. Heading B5A. In a compression-moulding machine, for moulding tiles &c., from ceramic material, bottom ejecting plungers 32, carried by plate 31, are actuated through shaft 26, by upper and lower hydraulic jacks, the pistons 9 and 7 of which are connected by rod 11. The cylinder 8 of the upper jack is carried by a spring- biased transverse member 21 movable along columns 2 depending from the fixed ground plate 1 of the press, and the cylinder 6 of the lower jack is seated in a fixed transverse member 4. In operation, starting from the position shown in the diagram in which an article has been moulded, the lower jack is actuated to raise piston 7, the piston moving until it abuts a vertically adjustable sleeve 14. The cylinder 8, and thus the ejecting plungers, are raised during this motion by a distance equal to the stroke of piston 7 minus the initial clearance between cylinder 8 and piston 9 i.e.h. The upper jack is then actuated to further raise piston 8 until crown wheel 37 mounted upon shaft 26 abuts crown wheel 43 mounted below plate 1, the moulded article then being completely ejected. The lower jack is then released and member 21 is forced down by springs 24 until piston 7 abuts cylinder 6, the plungers being lowered by a corresponding amount to facilitate filling of the moulds 33 with working material. The upper jack is then released and the member 21, cylinder 8, and plungers 32 move down further relative to the piston 9, the movement being stopped when plate 31 abuts a stop plate 34. The members are then as shown in the drawing and the press is actuated to compress the working material.
Patent GB-1423842-A (GB)
Title: Transducers
IPC: H04R9/04
Filed: 1972-10-25
Abstract: 1423842 Injection moulding coils RANK ORGANISATION Ltd 25 Oct 1973 [25 Oct 1972] 49138/72 Heading B5A [Also in Division H4] A voice coil for an electro-acoustic transducer, such as a loud-speaker, comprises a plurality of turns of insulated wire, the wire being encapsulated in a setting material provided with a filler to improve the thermal conductivity thereof. Thermosetting material such as phenolic resin or glass-filled epoxide resin is preferably used. In manufacture, a voice coil winding is formed and is located in the mould cavity of an injection moulding machine on a mandrel which is preferably of the expanding type to ensure that the roundness of the coil is maintained and that the coil does not move during moulding. The mould cavity is cooled with water so that material bonding the turns of the voice coil together prior to moulding, or the material of a former, is not deleteriously affected by temperature.