baber/WOPTO huggingface dataset:
Patent GB-962648-A (GB)
Title: Improvements in and relating to heat deformable information storage media and systems for use therewith
IPC: G03G5/022
Filed: 1960-06-07
Abstract: 962,648. Coated sheet material. GENERAL ELECTRIC CO. June 7, 1960 [June 22, 1959], No. 19934/60. Heading B2E. [Also in Division G2] A heat deformable information storage medium comprises a layer of thermoplastic material deformable in thickness and supported on a base layer, and an intermediate layer consisting of a conductive material, the deformable material having dispersed therein a homogeneous distribution of individual means for scattering light transmitted through the medium, the extent of the scattering at any point being a function of the thickness of the deformable layer there. As described, a transparent base web 33 of 25 to 100Á thickness formed of polyethylene terephthalate or a polycarbonate resin of a dihydric phenol is provided with a transparent electrically conductive layer 32 of chromium of 1Á thickness or a similar layer of cuprous iodide, and over this is applied a layer 30 of thickness 20 to 30Á of polystyrene of melting point in the range 100-150 C. containing particles of diameter 1-5Á of finely ground glass, hollow glass beads or carbon black, the scattering material being of such concentration in the layer that it does not appreciably absorb light incident on the layer. Reference is made to the use of a non- transparent base and to the omission of the conductive layer.
Patent GB-256053-A (GB)
Title: Soap tablets and process of making the same
IPC: C11D17/00
Filed: 1925-08-08
Abstract: 256,053. Atkinson, C. J. Aug. 8, 1925. Drawings to Specification. Soap tablets, especially those for single use, are made by compacting together soap flakes or granules, preferably dried, and (1) a gas-producing agent; or (2) dried bran, outmeal, sawdust, or other insoluble particles expanding rapidly in contact with water; or (3) both. in such quantities that on contact with water the tablet is mpidly disintegrated. Suitable proportions are 0-1 per cent of sodium carbonate or bleaching powder with its equivalent of tartaric, citric or other solid acid; or 20-25 parts by volume of soap granules to 80-75 parts by volume of sawdust, &c. compacted under a pressure of 2000 lb. per sq, in. Specification 14285/10 is referred to.
Patent GB-1178752-A (GB)
Title: Lead Screw and Nut Arrangement
Inventor: DAVIES BEAUMONT JOHN
IPC: B23Q5/40
Filed: 1967-05-01
Abstract: 1,178,752. Screw-and-nut gearing. GEORGE RICHARDS & CO. Ltd. 1 May, 1968 [1 May, 1967], No. 19986/67. Heading F2Q. [Also in Division B3] A lead screw and nut traverse for a machine tool slide comprises a lead screw E clamped at various positions A, B, C along its length to prevent flexing thereof, the clamps being opened and closed automatically to allow the drive nut F to pass so that only one clamp at a time is undamped. The clamps are opened and closed hydraulically by providing cams, limit switches or an electrical pick-off. To prevent "hunting" on to and fro movement of the slide the clamping initiating position is spaced nearer to the actual clamp than the unclamping initiating position. The lead screw may be fixed rotationally with the nut F rotatable, or may be rotated relative to a fixed nut. The lead screw may comprise a number of parts screwed together.
Patent GB-794564-A (GB)
Title: Full fashioned knitted panty and method of making same
IPC: D04B1/24
Filed: 1954-07-08
Abstract: 794,564. Knitting. PILOT FULL FASHION MILLS, Inc. July 8, 1954 [Nov. 5, 1953], No. 20024/54. Class 74 (2). [Also in Group VII] A full-fashioned selvedged panty blank 12 is produced, from yarns including at least one stretch synthetic yarn, by knitting, in that order, a first plurality of courses to form a first body portion 23, a second plurality of courses to form a crutch portion 25 and a third. plurality of courses to form a second body portion 28, each course being knitted at least partly from said synthetic yarn and the blank being fashioned by widening and narrowing some of said portions to form fashioning marks such as 26, 27. Successive blanks are separated along areas 20 between lock-stitch or picot-stitch formations 22, 31 and each garment is completed by joining the front and back body portions along the selvedges, a waistband being added. Fashioning marks 41, 42 may indicate the points where seaming should begin. A reinforcement 21 may be provided along the entire length of each selvedge or only along the edges of the leg openings. The crutch portion has a reinforcement 34, fashioned at both ends at 36, 38 and preferably separated by a few wales from the selvedge reinforcement. An additional (e.g. rubber) yarn may be knitted in adjacent the upper edge of the garment. The reinforcement 21 may be omitted entirely and there may be sewn around the leg openings elastic, lace, or other ornamental material. The garment may be entirely of stretch yarn; or areas within the body portions may be interknitted with ordinary non-elastic yarn. The stretch yarns may have been produced from polyamide, polyester or polyacrylonitrile yarns.
Patent GB-200614-A (GB)
Abstract: 200,614. Procter, E., and Walton, H. April 27, 1922. Combustion products, returning.-Ovens for baking, drying, enamelling, &c., are heated bv the repeated circulation of furnace gases through iron or other metal tubes disposed in the oven chamber. As shown in connection with a baker's oven ranges of tubes e, f are fitted at the upper and lower parts of the chamber, and are connected by end headers b to form a circuit, which communicates on the one hand with a fire place c 'through the mixing-cone h and nozzle g, and on the other with an outlet flue d. In the cone h the fresh combustion products from the fireplace are mixed with cooler gases from the tubes e, f and are so reduced in temperature that they can be passed safely through the iron tubes. A fan l may be fitted in a by-pass in the circuit to increase the speed of circulation of the gases, and the working may be so controlled that the volume of gases re-circulated is greater than the volume of fresh gases supplied to 'the circuit. A flue outlet k leading to a hot water boiler may be provided.
Patent GB-848223-A (GB)
Title: Apparatus for conversion of continuously varying values
Inventor: PASSAU PHILIPPE
IPC: G01D3/02
Filed: 1957-06-26
Abstract: 848,223. Electric signal transmission systems. ATELIERS DE CONSTRUCTIONS ELECTRONIQUES DE CHARLEROI. June 26, 1957 [June 27, 1956], No. 20137/57. Class 40 (4). In apparatus for transmitting an electric signal the signal transmitted comprises the signal itself together with a proportion p = /a 1 / of the signal as it was a time # 1 previously, the terms p /a 1 / and # 1  being obtained from an auto-correlator. The latter computes the value of the auto-correlation function for different values of # and computes the first minimum of this function. The values of p and # so defined are those used to determine the additional signal involved. It is stated that by this method the energy required to be transmitted in an amplitude-modulated transmission or the frequency spread in a frequency-modulated transmission is kept to a minimum. In the event of the auto-correlation function having no minimum the signal may be differentiated prior to transmission by this means. In the transmission arrangement shown, Fig. 4, the signal u(t) is fed to a variable tap delay line M the tapping being controlled by the value # obtained from the auto-correlator C to produce an output u(t - # 1 ). The signal is then tapped down over the potentiometer P controlled by the value p /a 1 / obtained from the autocorrelator to produce a signal /a 1 /u(t-# 1 ) which is then added to the original signal for transmission at E. The transmission is in multiplex two other channels being used to transmit the values of p = /a 1 / and # 1 . At the receiver, Fig. 5 (not shown), the transmitted values p = /a 1 / and # are used to obtain a signal /a 1 /u(t-# 1 ) which is subtracted from the incoming signal to produce the signal u(t).
Patent GB-333353-A (GB)
Title: Improvements in the manufacture and production of a non caustic crude cyanamide whichis free from dust
IPC: C05C7/02
Filed: 1929-07-01
Abstract: 333,353. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 1, 1929 Manures.-Calcium cyanamide is rendered free from dust and non-caustic by mixing it with a solid ammonium salt such as ammonium nitrate or with solid phosphoric acid. The ammonia liberated from the ammonium salt may be removed by heating the mixture to a temperature not above 150‹ C. and when using ammonium nitrate a granular product is obtained. The cyanamide may be partly neutralized by treatment with solid phosphoric acid, and then further treated with ammonium nitrate. Industrial products containing ammonium salts such as commercial calcium nitrate which contains ammonium nitrate may be used.
Patent GB-478706-A (GB)
Title: Improvements relating to the mounting of pipes for filling or emptying casks or tanks
IPC: B67D1/08
Filed: 1936-07-21
Abstract: 478,706. Filling casks and tanks. DAWSON. S. W. M., and DAWSON, B. D. July 21, 1936, No. 20166. [Class 21] Glass filling-pipes for casks or tanks are led from ceiling unions to the vessel to be filled by means of an adjustable supporting frame for the pipes, such frame consisting of two boards 1, 2 carrying the pipes, boxed and being slidable in guides 10, 11, carried on a plate 12 on which is mounted a socket 13 within which swivels a tube 14 threaded at both ends and mounted in a plate 15, fixed to the ceiling. The other end of this board carries a fitting which embodies wheels 5, 6 running on a rail mounted in a suitable position on the ceiling such fitting having a ball race 8.
Patent GB-821899-A (GB)
Title: Improvements in or relating to tubular bodies
IPC: F16L59/14
Filed: 1957-06-26
Abstract: 821,899. Tubes. LONZA ELECTRIC & CHEMICAL WORKS Ltd. June 26, 1957 [June 27, 1956], No. 20196/57. Class 99(2). A composite tube wall has a core 3, 3a of closed-cell cellular polyvinyl chloride or copolymer of vinyl chloride and cover members 2, 6 of hardened reinforced synthetic resin which adhere to the inner and outer faces respectively of the core member. The tube is made by winding a thin layer of glass fibres or glass fabric about a mandrel 1 formed of a steel pipe and impregnating the fibres with an unsaturated polyester resin which hardens forming the inner cover member 2. Sheets of polyvinyl chloride are heated and/or shaped to form the core 3, 3a with overlapping joints 4, the inner diameter corresponding to the outer diameter of the member 2 to which it is bonded by an adhesive. Deformation may be carried out by treating the cellular polyvinyl chloride sheets with a volatile solvent such as acetone or methyl ethyl ketone. The outer cover layer 6 is formed over the core by covering with a glass fibre layer which is impregnated with an unsaturated polyester resin which adheres to and covers the core. The polyvinyl chloride core may be free from or contain up to 20% plasticizer. The synthetic resins of the cover members 2, 6 may be of a liquid polyester mixture, e.g. based on maleic acid and a glycol to which is added a cross-linking component such as styrene ; alternatively, self-hardening resins based on isocyanates, urea or melamine may be used and, in addition, may also be used as adhesives. Further adhesives may be copolymers of vinyl chloride and vinyl acetate, cellulose nitrate or an epoxide resin with a hardener. Textile fabrics, foils of synthetic materials and metal braids may be used as alternative reinforcement for the cover members. The composite tube is sufficiently buoyant to float in water, may be used for floating pipe lines and has thermal and sound insulating properties. Further reinforced layers may be added to the outer cover member 6, and the mandrel tube 1 made of steel or rubber may be retained within the composite tube as a lining. An example is given of a tube made as described having inner and outer glass fibre members of 0À5-2 mm. thickness and a core made from flat sheets of polyvinyl chloride of 20 mm. thickness and 0À1 gram per cubic centimetre density.
Patent GB-599215-A (GB)
Title: Improvements in steam generator unit
IPC: F22G5/04
Filed: 1945-08-07
Abstract: 599,215. Water-tube steam boilers. KENNEDY, J. E. Aug. 7, 1945, No. 20235. Convention date, March 3. [Classes 123 (ii) and 123 (iii)] In a steam boiler the hot gases from a radiant heat combustion chamber 17, provided with burners 18 arranged for down-draught firing, are adapted to flow to the flue duct 86 through convection passes housing successively a superheater 66, an economiser 74 which is mounted on a grating 80 supported by cross beams 82 extending through the right-hand or back wall 12 of the boiler to provide a platform 106 for said economiser, when removed and an air heater 84. The two side and left-hand or front walls 12 of the boiler setting are lined with closely-set water tubes 24, 24 and 36 respectively, and in the combustion chamber alone, disposed in front of and spaced from these rows of wall tubes, are further single rows of spaced water tubes 56, 56 and 58. At the right-hand end of the boiler proper there is a wall of closely-mounted water tubes 40, the upper ends of alternate tubes being bent in to afford a passage for the gases from the superheater pass to the economiser pass, and between the two end walls, separating the combustion chamber and the superheater pass, is a wall of tubes 52, closely-spaced at their upper ends but open at their lower ends 54 for the passage of the gases, with a spaced row of spaced tubes 60 on the combustion chamber side. All the water tubes extend from lower headers 26, 34, 42 to an upper steam and water drum 16, either direct or through upper headers 28, 32, the lower headers also being connected to the drum 16 by external downcomers 108. The bottom of the chamber 17 is formed with sloping walls 20 terminating in an ash pit 22; an ash-trap 96 is also provided below the economiser 74. The superheater 66 comprises a plurality of looped tubes connected to inlet and outlet headers 68, 70 and it preferably extends across the whole width of the pass but is spaced from the tube bank 40 to provide a by-pass passage fitted with three vertically spaced dampers 98 for controlling the degree of superheat. The economiser 74 is also provided with a by-pass having hinged doors 102, 104 at its two ends, the doors being normally in the position shown with the flue gases flowing in the direction of the arrows. When, however, the doors are moved to the dotted line position the gases flow direct from the superheater to the air-heater 84 and permit removal of the economiser for repair or renewal, the boiler wall adjacent the economiser being fitted with one or more removal panels 100 above the platform 106. Air is supplied to the heater 84 from a duct 88 and blower 90 and, after passage around the tubes thereof, is led through an insulated duct 92 and secondary air-ducts 94 to the burners 18. The Specification as open to inspection under Sect. 91 comprises also a modified boiler, not shown, provided with tertiary air-ducts opening through the three outside walls of the combustion chamber 17. This subject-matter does not appear in the Specification as accepted.
Patent GB-683040-A (GB)
Title: Improvements in and relating to electric valve converting systems
IPC: H02M7/00
Filed: 1950-08-15
Abstract: 683,040. Converting. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 15, 1950 [Aug. 24, 1949], No. 20246/50. Drawings to Specification. Class 38 (ii). An electric converting system of the kind adapted to be switched from rectifying to inverting operation comprises electric valves whose conductivity is determined by control members (e.g. ignitrons), the valves being connected to a supply circuit via a transformer having a plurality of primary windings connected to the supply circuit and two groups of mutually phase-displaced secondary windings connected to the anodes of the valves, the neutral points of the groups of secondary windings being interconnected by an interphase transformer, the valves being of the ignitron type and the load connected via a stabilizing inductance to the interphase transformer. When the system is being operated as an inverter an additional resistance is included in the positive lead.
Patent GB-751733-A (GB)
Title: Laminated sheeting
Inventor: PICKARD ARTHUR ERNEST
IPC: B32B27/00
Filed: 1953-07-22
Abstract: Compositions for the wearing layer of a floor covering comprise a vinyl resin such as polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate or vinylidene chloride, a plasticiser such as tricresyl phosphate, a filler such as short asbestos fibre or limestone, and, if desired, blown castor, cottonseed, linseed, or tung oil, a naphthalene-formaldehyde or coumarone resin, an ester or metal salt of rosin, and a pigment.  In Examples 1 and 2, sheets are made from compositions containing a copolymer of vinyl chloride and vinylidene chloride, tricresyl phosphate, blown linseed oil, short asbestos fibre, powdered limestone, a pigment, and, optionally, cobalt resinate driers.  In Example 3 a composition containing the same copolymer and plasticiser, limestone, pigment, and lead carbonate is sheeted.  The pigment may be red iron oxide. Specifications 736,009, 741,599, 744,917, [Group V], and 745,149 are referred to.
Patent GB-186757-A (GB)
Title: Improvements in grabs
IPC: B66C3/08
Filed: 1921-07-30
Abstract: 186,757. Stothert & Pitt, Ltd., and Bacon, L. July 30, 1921. Grab-buckets.-In a single or double-chain grab in which the inner edges of the buckets are hinged together and are raised towards the grabhead for closing by means of a purchase drum E, this drum is carried by links C above the bucket hinge B so as rot to come into contact with the material and the hinge-plates a of the buckets are shaped at b so as to form lateral supports for the barrel shaft in all positions of the buckets. The grab-head gear shown comprises slotted hooks or links J which can be supported on a suspension ring L or on a hold-rope for discharging the grab as described in Specification 178,517. the catch mechanism described in that Specification for trarsferring the weight of the open grab from the suspension ring or hold-rope to the hoisting-rope being replaced by the mechanism described below. A plate M is pivoted on the grab-head at K and on one of the hooks J at m and is connected by a rod N to an arm o pivoted on the fulcrum pin P of one of the buckets. The arm 0 carries a stop n for engaging recesses r in slotted hook-plates R which can turn and slide on the pin P. When the grab is supported by the hooks or links J, these hooks or links are turned outwards on their pivots K, and the plate M is turned about the pivot K so as to raise the rod N and arm 0. The grab is now opened by lowering the barrel E; the hooks R resting on the bucket turn downwards until supported by the engagement of the stop n in the recess r, and links S, pivoted on the fulcrum pin of the other bucket and resting on the barrel, come into engagement with the hook-plates R. W hen the hoisting chain is hauled in, the buckets cannot close further than the position last indicated, since the links S engage the hooks R and prevent outward movement of the fulcrum pins P The load is therefore transferred from the suspender ring to the hoisting chain; the rod N supports the plate M, and the hooks J fall outwards, turning about the pivots m, and are released from the suspender ring. When the open grab is lowered on to the ground and the hoisting- chain becomes slack, the hooks R fall clear of the links S, and the weight of the parts 0, N, M, J brings them into the position shown in Fig. 1 in readiness for engaging the suspender ring. As the chain is hauled in, the bucket raises the hook R to the original position.
Patent GB-1221328-A (GB)
Title: Treating radioactive waste materials
IPC: G21F9/00
Filed: 1968-04-30
Abstract: 1,221,328. Processing radio-active waste. SIEMENS A.G. 30 April, 1968 [19 Feb., 1968], No. 20521/68. Heading G6R. An aqueous radio-active solution of a boron compound is evaporated to a concentration at which, on cooling, the remaining water is taken up by the boron compound as water of crystallization so as to form a solid residual mass. Aqueous nuclear reactor coolant containing boric acid is neutralized with alkali and the borate solution is concentrated in evaporator 1. A device 13 switches off the heating jacket 3 when the level of liquid falls below the level of the top of the jacket. Solution of the required concentration is led in weighed amounts into storage containers 7 where it solidifies.
Patent GB-460031-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B13/22
Filed: 1935-07-19
Abstract: 460,031. Cables; cable joints. STANDARD TELEPHONES & CABLES, Ltd., and WEBB, J. K. July 19, 1935, No. 20620. [Classes 36 and 38 (i)] An oil-resisting barrier or termination is provided in a metal-sheathed oil-impregnated cable by introducing a polymerizable material into the cable insulation by means of tappings or openings in the metal sheath and thereafter polymerizing the material. The polymerizable material may be styrene with or without plasticizers such as diphenyl or its derivatives. Nipples are inserted in the sheath of a cable and the sheath between the nipples swaged down tightly on to the insulation and heated to 120‹ C. Stvrene is then introduced into one nipple and a vacuum applied to the other : when sufficient oil has been withdrawn from the latter, styrene is forced into both nipples under pressure, the sheath being maintained at 120‹ C. to effect polymerization ; additional styrene is forced in during polymerization to compensate for contraction. For cable terminations, the end of the cable may serve as one of the openings. Similarly, a straightthrough joint may be converted into a barrier joint, the tappings being provided in the cable sheath on either side of the joint with, if desired, an additional tapping at the centre of the joint. Specifications 429,611 and 449,868 are referred to.
Patent GB-1012317-A (GB)
Title: Boron nitrogen polymers
IPC: C08G79/08
Filed: 1962-05-30
Abstract: Boron nitrogen polymers are obtained by heating in a closed system at 350 DEG  to 600 DEG C. a plurality of different borazoles each having the formula <FORM:1012317/C3/1> where Y1, Y2 and Y3 each represent a hydrogen atom, a hydrocarbon group free from non-aromatic unsaturation or a dimethyl-s-triazinyl group; and X1, X2 and X3 each represent a hydrogen atom, a hydrocarbon group free from non-aromatic unsaturation, a dimethyl-s-triazinyl group or a tertiary amino group which is free from non-aromatic unsaturation and consists, apart from the amino nitrogen atom, of only carbon and hydrogen atoms.  Examples describe polymerizing mixtures of (1), (2), (4) and (5) B-triphenylborazole and hexamethylborazole, B - triphenyl - N - trimethylborazole or N-trimethylborazole; (3) B-triphenyl-N-trimethylborazole and hexamethylborazole.