baber/WOPTO huggingface dataset:
Patent GB-570565-A (GB)
Title: Improved process for extracting bismuth from alloys
IPC: C22B30/06
Filed: 1941-12-24
Abstract: 570,565. Extracting bismuth from alloys; lead nitrate arsenious oxide. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. - GOBAIN, CHAUNY & CIREY. Dec. 24, 1941, No. 16649. Convention date, Spet. 12, 1940. [Class 1 (ii)] [Also in Group II] In the extraction of bismuth from its alloys with lead, for instance from a metallurgical byproduct containing 70-75 per cent. Bi, 25-30 per cent Pb, and 1-2 per cent As, the pulverised alloy is treated with 10-12 per cent. more dilute nitric acid than is necessary to convert its lead content to nitrate, and treatment is prolonged until all the lead is dissolved, and any bismuth brought into solution has been reprecipitated either as metallic bismuth or as bismuth subnitrate. Arsenic is volatised from the residual mixture by a thermal oxidation treatment using the bismuth subnitrate as oxidising agent, and the slag of bismuth oxide formed separated from the molten metallic bismuth. The oxide may be reduced to metal.
Patent GB-703190-A (GB)
Title: Improvements in or relating to shell roofing
IPC: E04B7/10
Filed: 1951-07-13
Abstract: 703,190. Roofing. EAGAN, Ltd., R. E., and ATKINS, S. H. G. July 8, 1952 [July 13, 1951], No. 16656/51. Class 20 (4) Shell roofing such as barrel roofing, North light roofing and dome roofing is formed from a plurality of curved shell units 1 of precast concrete assembled together. The units of each line are secured together by bolts passed through holes in flanges 2 and the units are formed with thickened edges 4 containing reinforcement to enable them to withstand tension. The curved units may be separated by flat units 13, Fig. 12, and they may be in the form of half units, Fig. 13, each pair of which are separated by flat units 15. One pair of curved half units may serve as a railway platform roofing, Fig. 17.
Patent GB-618677-A (GB)
Title: A new or improved resilient electric socket contact element
IPC: H01R13/115
Filed: 1946-05-31
Abstract: 618,677. Holders for discharge tubes. BRITISH MECHANICAL PRODUCTIONS, Ltd., and DEAKIN, S. T. May 31, 1946, Nos. 16661/46 and 8874/47. [Class 38 (i)] [Also in Group XXXVII] The portion 2 of the resilient blank shown in Fig. 1 is bent across its width to a zig-zag or S-shape to form the socket shown in Fig. 2 in which the wings 3 provide parallel contact faces 4 which receive a co-operating contact 5. The socket is retained in a recessed hole in a holder and a base-plate, apertured for the socket shank 1, is riveted to the bottom of the holder, to keep the socket in position. In a modification (Fig. 6, not shown), the shank 1 is provided with lugs which are spaced from the end of the S-shaped portion 2 and bent to conform with the S-shape. As shown in Fig. 12, the sockets are contained in apertures 11 in a holder, its bottom being held between the portion 2 and the lugs 10. The distance across the lugs is greater than the length of the slot 12 for the shank, but equal to the diagonal length of the slot, thus allowing the socket to be positioned by a slight twisting movement (Fig. 11, not shown).
Patent GB-863413-A (GB)
Title: Method of surfacing floors
Inventor: MCNEILL RONALD SWIFT
IPC: E04F15/18
Filed: 1957-05-27
Abstract: <PICT:0863413/III/1> A floor, e.g. a ship's deck, is surfaced by adhering thereto at least one layer of a foamed or aerated synthetic resin, and coating the exposed surface area of said layer, or at least the uppermost layer when more than one is present, with a waterproof, resin-based adhesive which will not chemically attack or otherwise react with the foamed or aerated synthetic resin.  As shown, preformed blocks 6 of foamed or aerated synthetic resin e.g. a polyurethane, are affixed to the deck 5 by means of a waterproof, resin-based adhesive 7, e.g. an epoxy resin or a cold-curing unsaturated polyester resin in solution in styrene. The adhesive is preferably applied to the sides also of the blocks, as at 7a.  The layer of adhesive on top of the blocks is preferably applied in one continuous run after the blocks have been laid.  A surfacing layer 8 of linoleum, rubber or neoprene flooring, thermoplastic tiles, polyvinylchloride linoleum, cork tiles or composition comprising a latex of natural or synthetic rubber or a thermoplastic such as polyvinyl acetate, a cement powder and inert fillers, may be applied over the blocks, or may be applied on one side of the blocks individually before they are laid.  In other embodiments (not shown) a reinforcement, such as hessian or wire netting, is laid on top of the resinbased adhesive or between successive layers of the composition, the upper surface of the composition is covered with a sealing compound, e.g. a polyvinyl compound or rubber, applied in a fluid condition, e.g. by brushing, or washing on with a cloth, the foamed or aerated synthetic resin is applied by spraying and/or trowelling and/or brushing and subsequently coated with the waterproof resinbased adhesive, a layer of composition is laid on the floor beneath the layer of foamed or aerated synthetic resin, or two or more layers of foamed or aerated synthetic resin are used, which differ among themselves in rigidity, e.g. a lower yielding and an upper rigid layer.  Specification 841,867 is referred to.ALSO:A composition for use in surfacing floors (see Group III) comprises a paste, a powder and a filler.  The paste is a prepared and stabilised latex emulsion based on natural rubber, or a synthetic rubber, e.g. neoprene, or a thermoplastic, e.g. polyvinyl acetate, or any combination of the three.  The powder is a cement powder or mixture of cement powders, e.g. portland or aluminous cement, together with inert siliceous materials, and optionally pigments.  The filler is concrete mineral matter in particles, granulated cork, or wood chips. Specification 841,867 is referred to.
Patent GB-201349-A (GB)
Title: Improvements relating to bale ties for securing packages, packing cases and the like
IPC: B65B13/02
Filed: 1922-06-16
Abstract: 201,349. Goodfellow, W. June 16,1922 Bale-tie fasteners.-Relates to a device for use with bale ties for securing packing-cases &c. The ends 1, 2 of bale ties, which have been passed round a packing-case &c., are secured to fingers d on a pivoted winding pin c. The pin is rotated by a cross-pin e sliding in a bore and adapted to be passed into a hole c in the casing b and secured by sealing. In a modification, the pin e is replaced by a hinged arm engaging ratchet teeth on the casing, and in another form the casing b is secured in a recess in a packing-case so that it lies flush with the surface.
Patent GB-293559-A (GB)
Title: Improvements in grinding mills
IPC: B02C15/02
Filed: 1927-06-23
Abstract: 293,559. Hill, W. F. Carr-. June 23, 1927. Roller-and-ring mills comprise resilient means for supporting the shaft or spindle from which the roll (or rolls) is suspended which is independent of the means for driving the spindle. The resilient means may comprise one or more leaf, coil or other springs, or one or more rubber, pneumatic or hydraulic buffers so that during the operation of the machine the vibration of the parts may produce a relative up-and-down or axial rubbing movement between the rolls and the inner surface of the die ring. The roll or rolls may be canted or arranged to have a tendency to climb upon the die ring, and the spindle bearing or mounting or the casing containing the bearing may be associated with springs or buffers which resist the tendency to climb or the spindle may be associated with a tappet or vibrator to produce an amplified vibratory movement of the rolls in an axial direction. The roll head may be bored on the skew to give it a wobble as it runs round the die ring. The rolls may have a natural downward tendency which tends to keep down the wedge ring of the die. The grinding roll spindle a, Fig. 1, is supported on a rubber buffer b which may be solid or hollow and of any shape in crosssection. The buffer may be in sections or the supporting flange may be so arranged that the buffer is removable without lifting off the head of the mill. The mill in Fig. 3 is directly driven through the bevel pinion c and bevel wheel d, the roll spindle a being splined to its drive and connected to the bevel wheel by a flexible coupling e which may be of the padded-pin type and incorporate rubber balls b<1> the resiliency of which may be adjustable. The spindle may be connected to the gear drive by means of a quill, or by making the ends sqnare or other shape and adapting the same to float within a similarly shaped aperture in the driving shaft. When the machine is driven by a pulley in which is a spherical seating for the head of the main spindle, a cushion of rubber or other resilient mounting may be inserted at the seating as well as or in substitution for the buffer or cushion by means of which the pulley casting as a whole may be supported upon the mill frame.
Patent GB-920333-A (GB)
Title: Improvements in or relating to parallel straightedges for drawing boards
Inventor: DARGUE ERIC LEWIN
IPC: B43L13/04
Filed: 1959-05-19
Abstract: 920,333. Draughting machines. DARGUE BROS. Ltd. May 19, 1960 [May 19, 1959], No. 16847/59. Class 97 (3). A straight edge having a drawing edge 10, and track 12, to accommodate a protractor head and moved parallel to itself over the drawing- board by a wire-and-pulley suspension, not shown, is provided with a flanged roller 22 at each end which engage with the corner joining the front surface and the lateral edges of the drawing-board. Each roller 22 is mounted, by means of a ball bearing 24, on a stub shaft 16 pressed into a tubular portion 14 of the straight edge, the shaft 16 being initially adjusted endwise in relation to the drawing-board and then locked in position by a grub screw 18 engaging a flat 20 on the shaft. The straight edge, which is in accordance with Registered Design 876,694, has a pair of nylon pads 32 to space the ,edge 10 from the board. Specification 876,683 is referred to.
Patent GB-579805-A (GB)
Title: Improvements in and relating to torpedoes
IPC: F41G7/00
Filed: 1940-11-25
Abstract: 579,805. Controlling apparatus by sound. HUGHES & SON, Ltd., H., GASPER, P., HARRISON, E. P., and HUGHES, A. J. Nov. 25, 1940. No. 16894. [Class 118 (ii)] [Also in Group XXXV] Apparatus for controlling automatically the direction of travel of a torpedo comprises magnetostrictive acoustic devices for emitting directed beams of sound pulses which may be supersonic, magnetostrictive devices responsive to echoes received from the target for steering the torpedo and means for preventing any electrical output from the receiving devices except when they are excited by the echoes of the sound impulses from the emitting devices. The war head A of the torpedo has four magnetostrictive devices a, a', a<2>, a' so mounted therein that a and a<1> can project sound pulses laterally in an horizontal plane, a<2> can project pulses forwardly in an horizontal plane and a<3> can project pulses upwardly. The sound pulses are generated by condenser discharge circuits c, c', c<2>, c<3>, respectively, and this emission is turned by a constant speed battery-driven electric motor b. Electric pulses generated by the reception echoes by the devices a, a', a<2>, a<3> are amplified by thermionic apparatus d, d<1>, d<2>, d', respectively, and relays e, e<1> temporarily modify the control of the gyroscopic steering gear, a relay e<2> temporarily modifies the control of the diving gear, and a relay f operates the detonator. The devices a<2>, a' are used, respectively, for causing the torpedo to pass beneath the target, and for exploding it as it does so, as described in Specification 579,806 but these devices and the associated equipment may be omitted if desired, the torpedo being steered automatically and exploded by contact with the target in the usual way. The magnetostrictive devices are constructed, and are isolated from disturbing noises, as described in Specification 579,806. The spindle of the motor b is provided with contact drums q, q<1>, q<2>, q<3>, and s, s', s<2>, s', each drum being connected with a magnetostrictive device and an amplifier. The emission of the sound pulses, and the amplification of the electrical pulses generated by the echoes is controlled by the drums as described in Specification 579,806. The apparatus is so arranged that the emission and reception of sound pulses by the magnetostrictive devices a, a<1> modifies the steering control of the torpedo so that it is steered automatically towards the target from which the emitted pulses are reflected. Modifications to avoid duplication of the various circuit components are described.
Patent GB-255439-A (GB)
Title: Improvements in or relating to film-winding mechanism
IPC: G03B21/43
Filed: 1926-07-06
Abstract: 255,439. Kodak, Ltd., (Assignees of Scott, J. W.). July 15, 1925, [Convention date]. Kinematograph apparatus.-A film being wound on a flanged reel is passed over an inclined guide to twist it so that it enters between the flanges in an angular position. As shown, the film 5 in a kinematograph camera. is passed over a bent bar 19 on its way to a take-up spool 14; the film fits snugly between the flanges to minimize edge fog, and, owing to the provision of the bar 19, is wound tightly on the core. The bar 19 may be replaced by a conical roller cut away so that it only engages the margins of the film and having a flange against which one edge of the film bears. The film passes from a supply spool, on one side of a hinged partition 4, over a roller 6 to a sprocket 9 and gate 10, and then again over the sprocket 9 to the bar 19 and the spool 14. The film is retained on the sprocket 9 by pressure rollers 16 carried on sliding supports 17.
Patent GB-1070936-A (GB)
Title: Porous bodies
Inventor: RONCA EDWARD
IPC: B01D39/14
Filed: 1964-04-24
Abstract: 1,070,936. Laminates. DOULTON & CO. Ltd. April 14, 1965 [April 24, 1964], No. 17053/64. Heading B5N. A porous body comprising particles 2 of synthetic resin adhered together, provided with an overlay of a wire mesh or a fabric 4 securely attached to the particles appearing at a surface of the body without producing any substantial increase in the resistance to the flow of fluids through the pores of the body, is made by pressing a wire mesh or a fabric on to the surface of a body made of thermoplastic synthetic resin particles. The mesh or fabric may be embedded in the particles. The specified synthetic resin is polystyrene. The bonding may be effected by the application of heat during pressing or the mesh or fabric may be preheated.
Patent GB-335959-A (GB)
Title: Improvements in or relating to reinforced concrete posts, beams or girders and the construction thereof
IPC: E04H12/12
Filed: 1929-06-04
Abstract: 335,959. Bradshaw, F. W. June 4, 1929. Reinforced-concrete posts; posts; connections. - A multi-member reinforced concrete post or girder comprises spacing plates each perforated to receive reinforcing rods and each formed with a lug along one edge which is perforated for bolts to connect limbs together. In the construction shown in Figs. 1 and 2, rods a pass through holes b in spacing plates c. Brackets d, g on the plates c carry connecting bolts e holding in position distance tubes f and connecting bolts h, respectively. Concrete blocks k form distance pieces between the halves of the post. In order to assemble the post, the plates c are held apart by the tubes f and the bolts c threaded through the brackets d and the tubes f, the nuts being screwed up to secure the parts in position. Reinforcing rods o are then threaded through the holes b and the reinforcing cage is lifted into position in the mould and supported bv bearing pins. Dummy core pins for the bolts h are placed in position. Each side is cast separately, and the sides connected together by bolts h, distancing blocks of concrete k being inserted between the sides. Fig. 6 shows a girder in which pairs of spacing plates c are arranged opposite strut k', one plate in the upper boom j<1> and one in the lower boom j". Distance pieces f and bolts passing through lugs on the plates c connect the plates of each pair, the whole girder being cast in one piece. If two such units are to be braced together, the spacing plates are formed with lugs for further connecting bolts which pass through concrete distance pieces separately cast.
Patent GB-485711-A (GB)
Title: Process for obtaining beryllium fluoride free from oxide
IPC: C01F3/00
Filed: 1937-07-19
Abstract: Beryllium fluoride, practically free from oxide, is obtained by reacting pure dry ammonium acid fluoride in the hot with dry beryllium hydroxide, the quantity of the former being sufficient to convert the beryllium into ammonium beryllium fluoride which is formed as an intermediate product.  A suitable reaction temperature range is 450-500 DEG  C.  Beryllium in the alloyed or unalloyed state may be produced from the beryllium fluoride obtained.  In an example, beryllium hydroxide and ammonium acid fluoride are mixed in a cylindrical vessel made of a metal of the kind intended to be alloyed with the beryllium in a further operation, e.g. iron, copper, nickel silver or an alloy of these metals, and the vessel is heated in a furnace with an adjustable electrical resistance, the interior of the mass attaining a temperature of 400 DEG  C. in 3-3 1/2 hrs.  Carbon dioxide or other inert gas is passed through the mixture through a feed tube in the bottom of the vessel to drive off water vapour. Neutral ammonium fluoride subliming passes through a tubular cap on the cylinder, and is condensed in a large cold chamber.  The condensed ammonium fluoride is treated with hydrofluoric acid to form ammonium acid fluoride for reuse.  The beryllium fluoride produced contains some fluoride of the metal of the reaction vessel.  A statement of the art refers, inter alia to the production of beryllium fluoride by the action of dry gaseous hydrofluoric acid at a bright red heat upon beryllium oxyfluoride in a platinum apparatus.
Patent GB-148748-A (GB)
Title: Improvements in and relating to field magnets for dynamo electric machines
IPC: H02K1/24
Filed: 1920-06-24
Abstract: 148,748. Siemens - Schuckertwerke. July 25, 1919, [Convention date]. Pole-pieces and cores.-The salient poles of a high-speed rotor each consist of a core proper k and a removable part r, the part r having legs which straddle the core so that the contacting surfaces are in the axial direction only. Cooling channels may be formed at the corners or sides between the winding and the iron of the poles by making the part r shorter or longer than the part k. The legs of the part r are secured by screws s and may be sunk into grooves in the hub n, as shown. The parts r may be subdivided in the axial direction as shown on the lower pole in Fig. 2.
Patent GB-839162-A (GB)
Title: Improvements in and relating to automatic inspection and rejection apparatus
IPC: B65B19/30
Filed: 1958-05-29
Abstract: 839,162. Packaging-machines. INDUSTRIAL NUCLEONICS CORPORATION. May 29, 1958 [Dec. 5, 1957], No. 17234/58. Class 94(1). [Also in Group XL(b)] In a production line comprising means for assembling, conveying and packaging groups of items, an inspection apparatus comprising a plurality of photo-electric detectors produces an aggregate signal which in the event of a defective group produces a reject signal which is applied to means for rejecting the defective group. In Fig. 1, filter tipped cigarettes are assembled in a vertical stack 12 in a hopper 10 the bottom of which is cut away to expose the ends of the cigarettes nominally containing filter plugs. The ends of the cigarettes in the third and fourth rows from the bottom of the stack 12 are illuminated by a light source 46, Fig. 2, and the light reflected from each individual cigarette is directed on to a corresponding one of a plurality of photocells 48 in a detector head 42. An intermittently driven conveyer 14 is provided with cleats 16 each of which removes two horizontal rows of cigarettes from the bottom of the stack 12 and delivers them to a wrapping unit 20 from which the wrapped groups of cigarettes are transferred into partially formed boxes 26 travelling on an intermittently driven conveyer 24 from a box-forming or box unfolding mechanism 28 to a sealer machine 36 which closes and seals the boxes. A second further hopper 10, conveyer 14 and wrapping unit 20, deliver a second wrapped group of cigarettes to each box as it proceeds towards the sealer machine 36. If a filter plug is missing from one or more of the cigarettes viewed by the detector head 42 no light is reflected to the corresponding photo-cell or photo-cells. The signals produced by the photocells in the detector head are combined by a circuit in a unit 62 which produces a reject signal when one or more filter plugs is missing. The reject signal is transmitted to a solenoid 70 which displaces a plunger 76 in a memory drum 72 which rotates in step with the movement of the conveyers 14, 24. On further rotation of the drum 72 the displaced plunger 76 actuates a switch 84 which may be connected to operate any type of rejection means, or as described, is connected to the box former 28 so as to withhold the delivery of a box to the conveyer 24 so that the wrapped group of cigarettes with the missing filter plug proceeds unboxed on the conveyer 24 for subsequent removal before or after passing through the sealer unit 36. In order to avoid ambiguous signal from the photo-cells a switch 66 is provided for disabling the operation of the photocells and associated circuits except when the conveyer 14 and cigarettes in the stack 12 are at rest. The invention is applicable to the packaging of products other than cigarettes.
Patent GB-625232-A (GB)
Title: Improvements relating to machines for baling hay, straw and like materials
IPC: A01F15/08
Filed: 1947-06-30
Abstract: 625,232 Loading hay: sheafing machines. TOPE, E. R., and TWOSE, Ltd., E. V. June 30, 1947, No. 17239. [Class 6(iii)] [Also in Group XVII] The pick-up unit of a side-feed straw &c. baling machine., (see Group XVII], comprises laterally-spaced groups of tines 44 mounted on transverse bars 43 carried by a laterally-spaced pair of chains 42 which are coupled by a series of chain drives to one of the rear road-wheels. Wide sheetmetal strips 45 are spaced between the tines 44 and the unit as a whole may be raised or lowered by means of a chain 61, crank 57, 59 and a screw 54 carried by a rod extending to the forward end of the machine, where it is formed with a handle. The straw is carried over into a trough 12 from which it is delivered by reciprocating forks, (not shown), into a baling chamber.
Patent GB-1168493-A (GB)
Title: Oil Recovery from the Earth
Inventor: DUNLOP DONALD DUNWOODY
IPC: E21B43/16
Filed: 1967-04-14
Abstract: 1,168,493. Wells &c. STRUTHERS THERMO-FLOOD CORP. 25 March, 1968 [14 April, 1967], No. 17259/67. Heading E1F. A method of recovering oil from an underground reservoir comprises injecting fluid which reduces the viscosity of the reservoir oil through a well into the reservoir, heating the oil in the reservoir for at least 10 ft. from the well, and producing oil from the reservoir through a well. The fluid (e.g. CO 2 , natural gas, ethane or L.P.G.) may be supplied with a fluid which does not reduce the viscosity of the oil. The oil may be heated by in situ combustion or by steam or water injection. In a cyclic method using one well for both injection and production the fluid supplied for each cycle is 0.01-2.00% of the pore volume of the reservoir and the oil is heated by at least 100‹F. In a continuous method, fluid amounting to 1.0-10.0% of the pore space is injected and followed by steam. When a large portion of the reservoir has been heated by 100‹F the supply of steam may be replaced by water. The supply of fluid and steam in a continuous method may be cyclic. The producing wells may be fractured or the reservoir immediately surrounding them may be treated with fluid or heated.