baber/WOPTO huggingface dataset:
Patent GB-977847-A (GB)
Title: Method for the production of crystalline particularly monocrystalline boron
IPC: C01B35/02
Filed: 1962-03-06
Abstract: Monocrystalline boron is prepared by passing a stream of reaction gas containing a halogen-containing boron compound and purified hydrogen over a heated carrier element, whereby boron is deposited on said carrier, and adding initially to the reaction gas a hydrogen halide which displaces the teaction equilibrium in favour of combined boron, in such a proportion that the temperature T0 at which boron removal from the carrier by reverse reaction commences, is disposed at most 200 DEG  C. below the temperature T at which the boron liberation reaction is carried out and the boron liberation is completely stopped below the temperature T0. The hydrogen halide added is preferably the one formed during the reaction, e.g. HCl or HBr and the boron compounds may be BCl3, BClBr2 or BBr2Cl.  The carrier is rod shaped or filamentary and may be of moulded boron, e.g. presintered boron powder or monocrystalline boron and is crystallographically oriented so that the rod axis lies in a crystal alignment which corresponds to a determined preferential growth alignment.  The carrier is heated electrically to a temperature not below 1200 DEG  K, a low temperature modification of boron being formed at 1300 DEG  K and a high temperature form at 1700 DEG  K. The surface may be cleaned by etching and purifying in a high vacuum, or by heating in a current of pure H2 and the vessel flushed out with a H2 flow containing at least 10 mol. % of hydrogen halide. Alternatively the oxide film is a multiple of the layer thickness of the oxide film is removed by heating in a gas mixture containing a hydrogen halide in such quantity that neither B nor Si (impurity) are deposited and thereafter reducing the supply of halide so that boron only is deposited.  The temperature of the carrier and the mol. ratios of the reaction gases are adjusted so that the temperature lies below the minimum separation temperature of silicon but above that of boron.  If required, the quantity of silicon deposited may be controlled by varying the hydrogen halide concentration. The atomic ratio of B : H is preferably at least 2%, e.g. the mol. ratio of BCl3 : H2 may be 1 : 10 and the maximum Si : B ratio is 0.1%. The reaction gas may be prepared by passing pure hydrogen through an evaporation vessel containing a liquid halogen containing boron compound, e.g BCl3, some of which is converted to hydrogen halide by water and using the hydrogen leaving the vessel as reaction gas.  Waste gas after passage over the carrier may be reused for a second carrier element.  Doped boron may be prepared using elements of Group II and IV in the form of their gaseous compounds, e.g. beryllium halides and compounds of carbon and silicon.  The reaction chamber may be lined with corundum and the remaining parts made of glasses using aluminium borate in combination with quartz-like AlPO4, BPO4.
Patent GB-789730-A (GB)
Title: Inlet or outlet means for permitting fluid flow into or out of a container
IPC: F16L37/40
Filed: 1954-12-14
Abstract: 789,730. Tapping casks and other vessels. LEWIS, E. C., and ALUMASC, Ltd. March 24, 1955 [Dec. 14, 1954],'No. 8560/55. Divided out of 789,729. Drawings to Specification. Class 21. The subject-matter of this Specification is identical with that described in Specification 789,729, but the claims differ.
Patent GB-835140-A (GB)
Title: Improvements in or relating to fishing floats
IPC: A01K93/02
Filed: 1957-03-15
Abstract: 835,140. Fishing floats. BURROWS, T. M. June 13, 1958 [March 15, 1957], No. 8590/57. Class 48. A fishing float comprises a tubular casing 1, an electric bulb 6 disposed in the head of the casing, an electric battery 14 in the base of the casing, fixed and movable contacts 9, 10 disposed within the casing independently of the bulb and battery but connected thereto and means carried upon or within the casing to be actuated by a downward pull on the float to close the electric contacts 9, 10 and operate the bulb 6. The switch contacts are operated by a lever arm 24 attached to the casing 1 by an oval ring 27 and having a downward extension 26 adapted to deflect inwardly the wall of the casing 1 when the fishing line 21, which is adjustably attached to the lever arm 24, is pulled by a fish taking the bait. The initial pressure exerted on the wall of the casing 1 by the extension 26 of the lever arm can be adjusted by partial rotation of the oval ring 27. The fixed contact 9 is mounted on an inner tube 8 and the movable contact 10 is carried by a spring arm 11 riveted to the outside of the inner tube 8 at 12. The rivets form an electrical connection between the spring arm 11 and a leaf spring 20 disposed within the inner tube 8 and bearing against the battery 14. A buoyancy member 28 in the form of an air chamber or a cork annulus is retained frictionally on the outer casing 1. In an alternative construction the float includes a chamber having perforated walls for the entry of water and containing an airtight ball float. The chamber is normally above water level but when the line is pulled downwardly the chamber is flooded and the ball float rises therein to abut a flexible diaphragm and close electric contacts. The upper electric contact is adjusted by means of a rod extending to the head of the float.
Patent GB-307942-A (GB)
Title: Improvements in or relating to adjustable chairs
IPC: A47C3/24
Filed: 1929-03-16
Abstract: 307,942. Korsten, A. C., and Visser, M. de. March 19, 1928, [Convention date]. Revolving seats: spring mountings; adjustments.-A vertically adjustable, revolving, and spring-mounted chair comprises an inner spring 7 mounted on a reduced extension 5 of the seatsupporting pillar 4 and bearing upon the bottom 8 of a sleeve 9, slidable, through the ring 12. Outwardly bent fingers 13 on the sleeve 9 engage between the convolutions of an outer spring ]4. A pin 19 on the rod 5 engages a recess 18 in the member 8, when the seat is unoccupied. The height of the seat can be adjusted by revalving the seat when unoccupied. If the seat is occupied, the spring 7 is compressed and the pin 19 freed from the recess 18, so that the seat can then be rotated without altering its vertical adjustment. On further addition of weight, the spring 14 also is compressed.
Patent GB-250234-A (GB)
Title: Improvements in, or relating to, rotors for water turbines or turbine pumps or the like
IPC: F03B3/14
Filed: 1926-03-30
Abstract: 250,234. Popoff, N. March 31, 1925, [Convention date]. Regulating. - In a water turbine or turbine pump having adjustable rotor blades a, these blades may be moved so as to vary their mean radius, thus presenting diminished vane angle for the reduced radius. The left half of the Figure shows a hub b slidably engaging pins c on the blades a to move them in the direction of flow under the guidance of the rotor part d. The right half shows the blades a movable round pins e by links f controlled by a hub g.
Patent GB-782859-A (GB)
Title: A new or improved tool for finishing the cylinder surfaces of internal combustion engines
IPC: B24B39/02
Filed: 1955-03-25
Abstract: 782,859. Rotting annular bodies. AUSTIN MOTOR CO., Ltd., and ANDERSON, F. J. March 16, 1956 [March 25, 1955], No. 8690/55. Class 83 (4). In a tool for rolling the internal surface of a cylinder bore a rotatably driven bar 10, Fig. 4, carries an annular set of rollers 29 which are free to float radially and are engaged by two opposed truncated cone members 20 which are pressed by springs 21 to urge the rollers 29 radially outwards. The cone members 20 are slidably keyed to the spindle 16 by balls 22 and engage conical faces 29y on the rolls to force them radially outwards. The cages for the rollers 29 comprise radially slotted end rings 27 connected by pillars 28 and are supported at each end by thrust bearings 19, 26. The rings 27 may be arranged so that the rollers 29 are slightly skewed to provide an axial feed. Slightly tapered zones 29x on the rollers provide a lead-in.
Patent GB-625778-A (GB)
Title: Improvements relating to rotor blades for helicopters and the like rotary-winged aircraft
IPC: B64C27/473
Filed: 1947-03-31
Abstract: 625,778. Rotary wing blades. CIERVA AUTOGIRO CO., Ltd., PULLIN, C. G., and SHAPIRO, J. S. March 31, 1947, Nos. 8723 and 31926. [Class 4] A rotor blade for a rotary-wing aircraft is made up of two principal components, a tubular metal main spar 11, Fig. 1, the section of which conforms to the leading portion of the aerofoil section, and a light metal skin element 12 that defines the remainder of the aerofoil section, the two components being bonded together over a large contact area by means of a metal-to-metal adhesive 15 requiring no pressure for bonding and completely filling the space between the surfaces. The main spar component 11 may be of carbon steel, alloy steel or high-strength non-ferrous alloy. It may be made from strip metal shaped in dies and closed by means of a seam preferably located on the internal web portion 13, formed from seamless tube and tapered over a mandrel, or built up from two or more tubes fitted one within the other. The skin component 15 of thin light-alloy sheet, which may be of composite type, having a layer of light low-strength material such as balsa wood, or calcium alignate sandwiched between thin metal sheets which may be in one or two parts with seams at the trailing and/or leading edges. The skin component may be in two parts 12 and 17, Fig. 3, joined at the webs 18 and 19 by the same bonding agent 15 as for the main spar or may be wrapped around the front of the main spar component, as in Fig. 6, with channel-section auxiliary spars 25a and 25b, and a light alloy extrusion 23 secured to the trailing edges. The bonding of the two components at 15 must be by an adhesive with " gap-filling " properties to ensure no small voids are left in the bond. A junction of this type may be obtained by forming a plastic layer on the metal surfaces with phenol-formaldehyde, or the material known by the Registered Trade Mark " Formvar," and disposing between them a layer of phenol-formaldehyde, urea-formaldehyde, or a resorcinol formaldehyde derivative. Alternatively, the "hot" rubber process or the adhesive known by the Registered Trade Mark " Araldite " may be used. All the bonding materials must be electrolytically inert. The root fitting of the rotor blade is in the form of a tapered cranked sleeve of high-strength material 27, Fig. 8, made in two halves and clamped to the root part of the main spar 11a by bolts on the edge flange. The sleeve 27 has at its inner end a circular collar 29 with an internal shoulder 30 for connection to the blade-mounting stub. The rear skin component of the rotor blade is tapered along its length, Fig. 10, to a greater degree than the main spar.
Patent GB-1410717-A (GB)
Title: End seals for electric cables
IPC: H02G15/04
Filed: 1973-02-22
Abstract: 1410717 Cable terminations PYROTENAX OF CANADA Ltd 22 Feb 1973 [25 Feb 1972] 8762/73 Heading H2E An end seal ready for attachment to a metalsheathed cable comprises a pot 12 having a chamber 18 with a cable entry aperture 26 at one end, and at least one conductor exit aperture 28 at the other end lined or surrounded with insulating material 16. The chamber 18 is substantially filled with a plastic electrically insulating compound 24 and, after insertion of the cable conductors 38 through the chamber 18 and the exit apertures 28, is sealed by forcing a deformable clamping ring 14 into the cable entry aperture 26 to grip the cable sheath 36. The solid insulating material may comprise the material of the pot itself; or, if the pot is of metal, insulating sleeves 16 may be provided having enlarged inward heads 40 formed by inserts 41 forced therein. The sleeves 16 are prepared with their heads 40 initially clear of the insulating compound 24, and are pulled into position when the cable is inserted. Preferably the clamping ring 14 is tapered near its leading end 32 and has at least two slots 30 extending throughout its radial thickness and from its leading end 32 through part of its length. Specifications 1,174,759; 1,140,740 and 645,797 are referred to.
Patent GB-628651-A (GB)
Title: Improvements in operating and control levers and the like
IPC: G05G5/12
Filed: 1947-04-01
Abstract: 628,651. Hinges. JEFFERY, H. E. April 1, 1947, No. 8771. [Class 65 (ii)] [Also in Groups VI, XXIV, XXXII and XXXIV] Means for locking hinged members in any desired relative position comprises a stack of parallel plates secured to one member, a second stack of parallel plates secured to a second member, said stacks being interleaved over a comparatively small area adjacent to the edge of each stack, means for applying or removing pressure at the area of interleaving to allow or prevent relative rotation of the members, and means for assisting distortion of the plates on the application of pressure. As shown, a lever 14 is locked in any required position by the pressure exerted by a spring 40 on a lever 35 whose arm 37 depresses a pin 39 which slightly distorts into a recess 14A two stacks of partially interleaved substantially parallel plates 25, 29. The plates 29, of rectangular shape and separated by spacers 30, are secured to the lever 14 by screws 31. The plates 25, formed as discs and separated by spacers 26 are non-rotatably secured to a stationary member 11 by a square shanked bolt 17 about whose cylindrical portion 23 and collar 24 the lever 14 and an attached plate 13 rotates when free.
Patent GB-1381623-A (GB)
Title: Catalytic hydrodealkylation of alkylaromatic compounds
IPC: C10G35/04
Filed: 1972-02-25
Abstract: 1381623 Graphite/alkali metal catalyst; hydrodealkylation SAGAMI CHEMICAL RESEARCH CENTER 25 Feb 1972 [11 Oct 1971] 8780/72 Heading B1E [Also in Divisions Cl and C5] Complexes of graphite and an alkali metal, and of graphite, a Group VIII transition metal chloride and an alkali metal (see Division Cl) are used as catalysts in the hydroalkylation of aromatic compounds. Specified complexes include C 8 K, C 24 K, and graphite-potassium complexes with FeCl 3 , NiCl 2 , CoCl 2  and RuCl 3  and a complex of graphite, sodium and FeCl 3  are disclosed.
Patent GB-869843-A (GB)
Title: Device for marking with a light a high voltage overhead line
IPC: B64F1/20
Filed: 1959-03-13
Abstract: 869,843. 8pace-discharge lamps for illuminating aerial obstructions. CLAUDE PAZ ET VISSEAUX. March 13, 1959 [March 19, 1958; Nov. 19, 1958; Jan. 19, 1959], No. 8788/59. Class 38 (4). A beacon lamp for indicating the presence of a high voltage A.C. transmission line 2 draws its energy from an auxiliary conductor 10 spaced and insulated at one end from the line 2. The voltage induced in the conductor 10 charges through a rectifier 12 a capacitor 6, which discharges intermittently into the lamp 20. The apparatus is suspended from the line 2. The lamp 20 may be wound into a helical or serpentine-shape to reduce its overall length. A resistor 16 and/or an inductance may be connected in series with the lamp and capacitor to prolong the light flash. Opposite halfcycles may be discharged by a rectifier 24, which rectifier may have a series resistor 23. Other arrangements are described in the Specification employing a full-wave rectifier, a transformer, and a second discharge tube, which tube may emit a different colour to the tube 20. The metal casing enclosing the charging circuit shouldbe preferably connected to the rectifier positive terminal to reduce the tendancy for the casing to collect dust which impairs the efficiency of the apparatus by increasing leakage currents.
Patent GB-1390771-A (GB)
Title: Float for fhishing nets and other fishing tackle
IPC: A01K75/04
Filed: 1971-04-05
Abstract: 1390771 Fishing float PANTHER PLAST AS 20 March 1972 [5 April 1971] 8807/71 Heading A1A The float has a spherical hollow plastics body 1 with a passage 2 running through it, and at one end of this passage is a recess 3 whilst at the other end is an enlarged part 7. Into recess 3 fits the hexagonal head 4 of bolt 5 and this bolt extends almost to the opposite end of the passage. The bolt carries a thread which corresponds with thread 11 of cylindrical member 8. As the member 8 is screwed into position the side walls of the enlarged part firmly grip the member and a fishing line or net, which has been previously engaged in e.g. a notch 9. The top part of the member 8 may alternatively be shaped as a hook for lateral insertion of the line when the member is loosened. On screwing the member the hook opening moves into enlarged part 7 and the line is trapped in this position.
Patent GB-683416-A (GB)
Title: Manufacture of hydrated ª‰-diethylaminoethyl p-aminobenzoate salts of penicillins
Inventor: BEATTIE GEORGE FISHER
IPC: C07D499/00
Filed: 1950-04-11
Abstract: b -Diethylaminoethyl p-aminobenzoate salts of penicillins in hydrated form are obtained by bringing together, in anhydrous methanol, an anhydrous salt of b -diethylaminoethyl p-amino benzoate and an anhydrous salt of penicillin, thereafter adding to the mixture an amount of water in excess of one molecular proportion and then separating the precipitated hydrate of the b -diethylaminoethyl p-aminobenzoate salt of penicillin. Specified anhydrous salts of penicillins are the sodium, potassium, N-ethylhexamethyleneimine and N-ethylpiperidine salts of penicillin G.  The hydrochloride is the preferred salt of b -diethylaminoethyl p-aminobenzoate. Specification 654,279 is referred to.
Patent GB-915357-A (GB)
Title: Process for separating through distillation naphthol from tetralone and tetralol
IPC: C07C37/78
Filed: 1961-03-10
Abstract: a -Naphthol is separated from mixtures with tetralone and tetralol by rectification in presence of a substance forming tetralone and tetralol azeotropes readily separable from the a -naphthol.  The said substance may be e.g. an alcohol, a sultam or an amine, but is preferably diethylene glycol.
Patent GB-558332-A (GB)
Title: Improvements in illuminating devices
IPC: F21S8/00
Filed: 1942-06-29
Abstract: 558,332. Ornamental lamp attachments. WOLF, A. June 29, 1942, No. 8921. [Classes 75 (ii) and 75 (iii)] [Also in Group XVIII] A transparent disc 14, Fig. 2, fitting closely around an electric light bulb B is formed with a bevelled or V-shaped edge 15 so as to produce a halo of light surrounding the bulb when viewed in the direction A. The disc may be carried by a flanged washer member 25 fitting over the base of the bulb B and resting on its screw shell 12. Fig. 5 shows another construction in which an irregularly shaped cup 30 fitting around the bulb B is formed with a bevelled peripheral edge 31. The surface of the cup may be perforated or enclosed with ridges to produce additional lighting effects.
Patent GB-287579-A (GB)
Title: Improvements in piezo-electric devices
IPC: H03H9/05
Filed: 1928-03-24
Abstract: 287,579. Westinghouse Electric & Manufacturing Co., (Assignees of Hitchcock, R. C.). March 25, 1927. [Convention date]. Void [Published under Sect. 91 of the Acts]. Piezo-electric crystal units.- A piezo-electric frequency controlling device for thermionic oscillation generators is so designed that maximum power may be obtained and is so constructed as to avoid variation or deterioration in use. The Figure shows a container 1 preferably filled with an inert gas at low pressure and provided with non-oxidizable electrodes 7, 8 and a piezoelectric crystal 17 having a ratio of length to width between 0.7 and 0.9 or between 1.1 and 1.4 and spaced from the electrode 7 by a non-integral number of air-wavelengths. The electrode 7 is supported and spaced from electrode 8 at three points only. an abutment element 18 retaining the crystal section 17. The spacing means have a small coefficient of expansion to maintain the electrodes in fixed relation. To avoid destructive sparking the crystal section is provided with a metallic coating preferably by electroplating. The crystal section is preferably cut with the width parallel to the optical axis of the main crystal and the faces determining the thickness are as nearly parallel as possible since deviations from parallelism materially reduce the output.
Patent GB-1406975-A (GB)
Title: Rotary fluid positive displacement machines
IPC: F03C2/08
Filed: 1974-02-28
Abstract: 1406975 Rotary positive displacement machines H L MCDERMOTT 28 Feb 1974 [23 March 1973] 9088/74 Heading F1F To improve sealing in a rotary pump or motor of the gerotor type, the outer, internally toothed gerotor member 24 has an outer cylindrical surface which is engaged by the ends of a pair of resilient mounting members 41 respectively located in recesses 20, 21 of the machine's peripheral wall so that they centre the outer member 24 with respect to the peripheral wall and also force it downwards (as viewed in Fig.5) whereby it's teeth 26 that are "out of mesh" are urged into sliding engagement with the corresponding teeth 28 of the inner gerotor member 27. The outer member 24 is rotatably supported only by these two resilient mounting members 41 so as to reduce viscous drag on its outer surface and as wear occurs between the inter-engaging surfaces of the teeth 26, 28; the members 41 compensate for such wear due to their downward force on the outer member 24. Inlet and outlet ports 35, 40 are located in two end-plates of the housing.
Patent GB-526694-A (GB)
Title: Improvements in the construction of high-speed motor-boats
IPC: B63B3/00
Filed: 1939-03-22
Abstract: 526,694. Motor boats. PAINE, H. SCOTTMarch 22, 1939, No. 9108. [Class 113 (ii)] In a high-speed motor boat having a wood bottom skin the latter extends across the bottom of the keel so that the keel is entirelv enclosed within the boat. The transverse frame members 10 are connected to the keel 11 by biscuits 12.- The bottom is covered by two layers 13, 14, of diagonal planking with an intervening layer of linen or fabric 15. A metal strip 16 is secured along the full length of the bottom of the boat beneath the keel.
Patent GB-165532-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1920-03-30
Abstract: 165,532. Moreton, R. S. March 30, 1920. Tobacco pipes.-The stem is cut away at F to form an open chamber, and the mouthpiece C is connected to the bowl section A by an intermediate section B lined with a metal tube E.
Patent GB-469343-A (GB)
Title: Improvements in or relating to apparatus for breaking or cutting coke, coal and like substances
IPC: B02C4/30
Filed: 1936-03-27
Abstract: 469,343. Roller and roller - and - breast mills. MILBOURNE, S. M., and FRANKS, F. March 27, 1936, No. 9199. [Class 59] A toothed roller for roller or roller-and-breast mills has the toothed drum formed by two or more part cylindrical sections clamped axially of the drum between a pair of drum end members one of which is movable along the roller shaft to dismantle the sections without disturbing the roller bearings. As shown applied to coacting rollers 1, 2, the roller 2 is mounted in fixed bearings and is provided with a flywheel 10 and fast and loose pulleys 11, 12. The roller 1 is carried by pendulum members 5 and is movably against the compression of a spring 7. The teeth or cutters of the roll are in longitudinal sections having tapered edges gripped by drum flanges 13, 14, the latter being fixed to a sleeve 19 slidable on a reduced part of the shaft 9 and engaging therewith by its splined end which is retained in position by a nut 20. The teeth are removed from the drum by removing .nut 20 and sliding the flange 14 away from the flange 13 whereby the hook 23 may be disengaged from its slot in the spigot 22 and the section removed.