baber/WOPTO huggingface dataset:
Patent GB-588694-A (GB)
Title: Improvements in and relating to the treatment of water
IPC: C02F1/52
Filed: 1945-03-05
Abstract: 588,694. Purifying waste water. PICKARD, J. A., and METAFILTRATION CO., Ltd. March 5, 1945, No. 5399. [Classes 46 and 111] A process for purification and re-use of soapy water consists in the addition to the water of a water-soluble magnesium salt, preferably magnesium sulphate, and the forcing of the water so treated through a filtering medium in a filter unit prior to re-use. Other soluble salts on the chloride fluoride and acetate of magnesium. In the arrangement shown, a wash-hand basin 1 is mounted above a tank 2 from which liquid can he withdrawn by a pump 3 and delivered to a filter 6 preferably of the type described in Specification 469,152 with kieselguhr as filter aid. The contents of the tank are treated with magnesium sulphate. The purified liquid may be returned to the basin 1 through a pipe 7 or may be passed from the filter 6 to a tank 11 for treatment by a base exchange material or by sodium carbonate, to precipitate excess magnesium, before the liquid is returned to the basin by way of pipe 12. The filter 6 may be a sterilizing filter, or a sterilizing substance for example sodium hypochlorate may be added to the soapy water.
Patent GB-155851-A (GB)
Title: Improvements in and relating to metals and their manufacture
IPC: H01K3/02
Filed: 1917-04-17
Abstract: Tungsten, particularly for use as drawn wire filaments or supports in electric lamps, is made by adding a solution containing a silicate, a tantalate, a niobate, or a mixture of such a solution with boric acid, or boric acid alone, to an alkali-metal tungstate or its solution, drying and igniting the precipitate, and reducing it to metal.  The added material is removed with impurities by volatilisation during the subsequent treatment of the metal.  In an example, a solution of a fusion of silicic acid, potassium carbonate, and sodium nitrate is added to a solution of a fusion of tungstic acid, sodium and potassium carbonates, and sodium nitrate, boiled with steam, poured into boiling hydrochloric acid and filtered, and the precipitate is dried, ignited, and reduced in hydrogen.  The metal so produced may be pressed and sintered; or it may be mixed with an equal weight of the oxide from which it was reduced, and the mixture reduced as before.  In other modifications, a solution of a fusion of silicic acid, potassium carbonate, and sodium nitrate may be added to a fusion of tungstic acid, sodium and potassium carbonates, and sodium nitrate; or the tungsten oxide referred to above may be mixed with a solution of boron oxide, dried, ignited and reduced.  Specifications 207/08, [Class 39, Electric lamps &c.], 23499/09, 9941/12, 27442/12, 3525/13, 10918/13, and 15961/14, [all in Class 39 (ii), Electric lamps, Incandescent], are referred to.
Patent GB-973203-A (GB)
Title: Bodies formed from thermoplastics coated paper scraps
Inventor: KREKER HANS
IPC: C08J11/06
Filed: 1963-02-11
Abstract: Shapes bodies are formed by action of pressure and heat on comminuted scraps of waste paper coated with thermoplastic materials.  Such materials may be, for example, polyolefins, or vinyl or substituted vinyl polymers or copolymers. The paper may be coated on one or both sides. Additional comminuted thermoplastic material may be added to the comminuted coated paper. The shaped bodies may be, for example, panels, plates, or hollow bodies.
Patent GB-306543-A (GB)
Title: Improvements in heat treatment of loaded conductors
IPC: C22F1/10
Filed: 1929-02-18
Abstract: 306,543. Electrical Research Products, Inc., (Assignees of Elmen, G. W.). Feb. 24, 1928, [Convention date]. Annealing.-A method of heat-treating a conductor loaded with magnetic alloy comprises heating and cooling a coil 16 of the conductor on a reel 14 of heat-resisting material in an annealing pot 50 within an electric furnace 13. The treatment in the annealing pot may be preceded by a heat-treatment in which the conductor in a continuous length is drawn through a furnace. The material may be slowly heated to about 900‹ C., kept there for about one hour, and slowly cooled; or it may be first heated by the continuous method referred to above to about 800-900‹ C., cooled, and heated in the pot to 400-450‹ C.; or it may be heated to considerably above 450‹ C., cooled to about 450‹ C., and either kept at 400-450‹ C., for several hours or very slowly cooled through the 450-400‹ C. range. The magnetic alloys may contain 9-81 per cent of nickel, 5-80 per cent of cobalt, and 9-50 per cent of iron, with or without up to about 10 per cent of another element such as molybdenum or chromium. Specifications 273,638 and 323,222 are referred to.
Patent GB-1451844-A (GB)
Title: Spirolactone and 17a-dicarboxyethyl steroid derivatives processes for their preparation and processes for converting them into related compounds
IPC: A61K31/585
Filed: 1974-02-06
Abstract: 1451844 Steroid carboxylates and spirolactones ROUSSEL-UCLAF 6 Feb 1974 [6 Feb 1973] 5452/74 Heading C2U The invention comprises compounds II, II<SP>1</SP>, IV and V infra and their preparation and conversion to compounds C by the routes shown R is C 1-4  alkyl; R 2  is H or Me; R 3  is Me or Et; M is alkali metal. Compounds VII are the subject of Specification 1,451,845. Reagents: VII#VIII and IX#II: e.g. chloranil or DDQ; VII#XI and VIII#II: CH 2 (CO 2 R) 2 /base; II#II<SP>1</SP>: alkali then acid; II<SP>1</SP>#IV or V: alkali metal base: II or II<SP>1</SP>#C: heat (with water in the case of II), e.g. by autoclaving with toluene at 120-140 C./2À5-3À0 kg./cm.<SP>2</SP>.
Patent GB-470583-A (GB)
Title: Improvements in or relating to apparatus for feeding cigarettes and other articles of similar shape
IPC: B65B19/10
Filed: 1936-02-24
Abstract: 470,583. Delivering cigarettes &c. from hoppers. FOALE, A. A., and MOLINS MACHINE CO., Ltd. Feb. 24, 1936, No. 5483. [Class 78 (i)] [Also in Group XVII] To correct disalignment o cigarettes or other rod-lik( articles passing from a hopper into spaces between vertical partitions, guide means disposed in the planes of the par titions are so shaped as to engage only a relatively short part of the length of an article so as to turn the article into parallelism if disaligned. The guide means may, as shown, be constituted by the upper edges of the partitions which for this purpose may be of wave form or may have a central raised portion 19 with sloping sides. To prevent jamming, the edges may also be thickened by placing a capping thereon or otherwise. The Provisional Specification describes also an arrangement wherein the upper edges of the partitions are straight but slope alternately in opposite directions. The invention is shown applied to apparatus described in Specification 471,521.
Patent GB-190062-A (GB)
Title: Hand machine for cutting out a number of thicknesses of fabric
IPC: B26F1/38
Filed: 1922-02-24
Abstract: 190,062. Duplessis, E. Feb. 24, 1922. Addition to 175,997. Cutting-appliances.-Relates to a machine of the type described in the parent Specification and consists in an improved mechanism for actuating the cutter. The knife 1 is connected by an eccentric strap 20 driven by an eccentric 18 mounted on a shaft between two spur gears 17. Two quadrants 16, actuated in one direction by a chain drive 25 from a hand lever 8 and in the other direction by a spring 10, engage the gears 17 to reciprocate the knife. A handle 22 mounted on a pin 26 is made adjustable by a bolt 27 and slot 28 and the presser foot 21 is adjusted by a wing-nut 29.
Patent GB-513903-A (GB)
Title: Improvements in and relating to the manufacture of cement containing fibrous components
IPC: C04B28/08
Filed: 1938-02-22
Abstract: 513,903. Cement-fibre compositions. LEFEBURE; V., DUNN, J. S., WALLACE, N. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 22, 1938, No. 5511. [Classes 22 and 70] A cement-fibre composition comprises blast furnace slag, calcium sulphate, a lime-containing or lime-producing exciter, e.g., Portland cement clinker, and fibrous material, e.g., asbestos, slag wool or organic fibres such as jute and sisal. Preferably, the fibre is asbestos, in amounts of from 5 to 25 per cent. by weight of the composition. The fineness of the cement may be such that at least 60 per cent. by weight of the slag, at least 50 per cent. of the exciter, and at least 60 per cent. of the whole cement, comprise particles not exceeding 30 microns in diameter, as described in Specification 513,897. The calcium sulphate constituent is preferably calcium sulphate hemihydrate, as described in Specification 513,901.
Patent GB-1447565-A (GB)
Title: Isoparaffin alkylation
IPC: C07C67/00
Filed: 1974-02-06
Abstract: 1447565 Alkylation catalyst TEXACO DEVELOPMENT CORP 6 Feb 1974 [21 March 1973] 05560/74 Heading B1E [Also in Division C5] An alkylation catalyst comprises a solution of carbon dioxide in liquid string acid in a wt. ratio CO 2 /acid of at least 0.1/100, wherein the liquid strong acid is sulphuric acid, fluorosulphonic acid or mixtures thereof. The catalyst solution is formed by contacting the acid and carbon monoxide at 0-100F and superatmospheric pressure. The Examples relate to suplhuric acid solutions.
Patent GB-891792-A (GB)
Title: Improvements in or relating to fluid pressure-operated linear actuators
IPC: F15B9/08
Filed: 1959-02-18
Abstract: 891,792. Fluid-pressure servomotor-control systems. LEDUC, R. Feb. 18, 1959 [Feb. 20, 1958], No. 5586/59. Class 135. In a servo control, relative displacement between the control member 78, and the doubleacting piston 12, is converted into proportional rotation of a piston mounted shaft 36 bearing cams 35, 34 which position valves within the piston, e.g. balls 29, 28 interposed respectively between a pressure supply at 22 to small piston space 20 and the large piston space 18, and between space 18 and exhaust at 64, 66. Linear movement of link 78 turns a crank 76 pivoted at 74 on the piston, the other crank end 36 pivotally engaging an off-set arm on cam-shaft 36 to rotate it. A device 60 gives a rotary vibration to the shaft to reduce friction. Follow-up movement of the piston reverses the displacement of the crank and reseats the valves. In another embodiment the control member moves coaxially with the piston and moves two oppositely acting cranks contained in a casing on the piston-rod. Specification 883,730 is referred to.
Patent GB-455491-A (GB)
Title: Manufacture of water-soluble condensation products
IPC: C14C3/20
Filed: 1935-02-21
Abstract: An aromatic hydroxyl compound, substituted in the nucleus with at least one aliphatic radicle of more than four carbon atoms (or, according to the Provisional Specification, more than three carbon atoms), is sulphonated, and the product is then condensed with an aldehyde.  The products so obtained are useful in acid solution as tanning agents; their water-soluble salts are useful as wetting, dispersing and cleansing agents.  Specified aromatic compounds for use as starting materials are p-isohexylphenol, p - isooctylphenol, p - n - dodecylphenol, p - n - octadecylphenol, and isooctylnaphthol. The sulphonation may be effected with sulphuric acid, oleum or chlorsulphonic acid at 60--150 DEG  C., and the condensation with an aldehyde may be effected in diluted acid solution at a temperature up to 100 DEG  C.  In the examples: (1) p - isohexylphenol is sulphonated and the product is treated with formaldehyde; (2) p-isooctylphenol is sulphonated and the product is treated with acetaldehyde; (3) p-n-dodecylphenol is sulphonated and the product is treated with crotonaldehyde.  Specification 380,252 is referred to.ALSO:An aromatic hydroxyl compound, substituted in the nucleus with at least one aliphatic radicle of more than four carbon atoms (or, according to the Provisional Specification, more than three carbon atoms), is sulphonated, and the product is then condensed with an aldehyde.  The water-soluble salts of the products so obtained are useful as dispersing agents.  Specified aromatic compounds for use as starting materials are p-isohexylphenol, p-isooctylphenol, p-n-dodecylphenol, p-n-octadecylphenol, and isooctylnaphthol.  In the examples: (1) p-isohexylphenol is sulphonated and the product is treated with formaldehyde; (2) p-isooctylphenol is sulphonated and the product is treated with acetaldehyde; (3) p-n-dodecylphenol is sulphonated and the product is treated with crotonaldehyde. Specification 380,252 is referred to.
Patent GB-1192541-A (GB)
Title: A Method of, and Apparatus for, Recovering the Oil Content of Waste Soluble Oil Emulsions
Inventor: MATTHEWS PAUL
IPC: C10M175/04
Filed: 1966-02-09
Abstract: 1,192,541. Recovering used cutting oils. MIDLAND OIL REFINERIES Ltd. 9 May, 1967 [9 Feb., 1966], No. 5607/66. Heading C5E. [Also in Division C1] A method of recovering the oil content of a waste soluble oil emulsion comprises adjusting, if necessary, the pH value of the emulsion to between 7.0 and 10.0, adding a phase-separating agent which forms an insoluble hydroxide to, and intimately mixing the agent with, the emulsion, re-adjusting the pH value of the mixture to between 1.0 and 3.0, again agitating and then allowing the mixture to stand until it separates into a layer of liquid effluent and a superimposed layer of mineral oil, and removing the oil layer. The agent added may be aluminium sulphate, magnesium sulphate or a mixture thereof, with or without an addition of hydrochloric or sulphuric acid. After removing the separated oil the pH of the aqueous phase may again be adjusted to between 8À0 and 9.0 to neutralize the effluent and precipitate the added phase-separating agent. The period required for precipitation may be reduced at this stage by adding a polymeric electrolyte such as polyacrylamide.
Patent GB-1074261-A (GB)
Title: Improvemetns relating to metal melting furnaces
Inventor: MARTINS GERARD PACELLI
IPC: F27B17/00
Filed: 1965-02-09
Abstract: 1,074,261. Metal-melting furnaces. GAS COUNCIL. Feb. 8, 1966 [Feb. 9, 1965], No. 5611/65. Heading F4B. A metal-melting furnace used, for example, for melting aluminium for die-casting purposes, comprises a preheating and charging shaft (3), an intermediate cover ring (2) and a base 1, said shaft being located immediately above the base surface 10 which slopes downwardly towards the channel 12 which in turn is downwardly inclined until the taphole 15 and therefrom upwardly inclined towards the air blast gas burner (16) fitted into recess 17. Barrier 9 serves to both guide the molten metal into the channel, within which it flows counter to the flow of hot gases, and to prevent the solid charge within the shaft from entering the channel. The temperature above the melting point to which the metal is raised is dependent only on the length of the channel up to the taphole.
Patent GB-1300243-A (GB)
Title: Quantizer system for radar data processing
IPC: G01S13/72
Filed: 1970-02-05
Abstract: 1300243 Pulse radar BURROUGHS CORP 5 Feb 1970 [27 May 1969] 5630/70 Heading H4D In a clutter-reducing pulse and scanning radar, the echo video signal for a given range/ azimuth sector is passed to an "azimuth filter" 12 and thence to a slicer 18, a signal derived from the azimuth filter is passed to a "range filter'' 22 which feeds a gain circuit 24 to control the slicing threshold, and a memory stores the gain and range and azimuth filter parameters for the sector when the surveillance thereof is completed for the "present" scan, the parameters being utilized as initial settings when the same sector is surveilled in a succeeding scan. In the embodiment the echo video input is selected by a switch 10 from the signals shown. Azimuth filter 12 consists of differential amplifiers 21, 23, a controlled attenuator 27 and a line 33 introducing a delay equal to the radar pulse repetition period. The action of the filter with various inputs is detailed Figs. 5 to 8 (not shown) and frequency response curves are given for frequencies up to the radar pulse repetition frequency and for various values of an attenuation factor W (W = 1 means no attenuation), Fig. 9 (not shown). The full-waverectified output of a circuit 47 is applied to an integrator; the degree of attenuation in attenuator 55 is switched between two values by the output of a circuit 63 to optimize cancellation of discontinuities (jumps) in clutter amplitude. D.C. restoration re-establishes signal reference level which has been lost by capacitor-coupled circuits. Video signal input switch 10 is controlled by the logic state of bits furnished by control system 32. Range filter 22, Fig. 11, is effectively a lowpass filter passing clutter which is subtracted from unfiltered video signal (Fig. 10, not shown) to produce video signals free from clutter; it comprises a tapped delay line the outputs from which feed weighted summing circuits WS and a network 42 which selects one of the WS circuit outputs as commanded by a decoder 44 as directed by control unit 32 Fig. 4, R-C filters 46 a selected one of which is determined by decoder 44 and switching network 45, and a summing circuit 50. The operation of the range filter is described in detail.
Patent GB-747399-A (GB)
Title: Improvements in bogie frames for railway and like vehicles
Inventor: DICK LESLIE BIRTLE
IPC: B61F3/08
Filed: 1953-02-28
Abstract: 747,399. Bolster mountings. METROPOLITAN - CAMMELL CARRIAGE & WAGON CO., Ltd. April 8, 1954 [Feb. 28, 1953], No. 5689/53. Class 103 (6). A bogie frame for railway and like vehicles comprises side members 5 carried on wheel axles and supporting by springs a bolster 13 on which the vehicle is borne, the springs being mounted at each end of the bolster in a cradle or stirrup 17 which is provided with guides 14 for the spring deflection movement of the bolster and is pivotally slung on the side members for limited angular movement about an axis parallel to the longitudinal axis of the bogie. The side members 5 may be steel castings or as shown, built up from pressings 6 with inturned flanges welded together. The members 5 have openings 8, 9, the openings 9 being provided to receive the ends of the bolster 13. The stirrup 17 supports a group of springs 18, 19, and is connected at its ends to rectangular guide members 14 pivotally mounted on trunnions 15, each guide member being in slidable contact with vertical guide columns secured to the bolster. The springs between the bolster and the stirrup comprise short springs 18 bearing against the bottom surface of the bolster and long springs 19 each comprising a pair of coaxial springs and bearing against the top wall of the bolster. The side members are supported on the axles through means permitting relative angular lateral movement as described in Specification 694,050, or as described in Specification 724,711.
Patent GB-549518-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/08
Filed: 1941-05-02
Abstract: 549,518. Telephone instruments respiratory appliances. STANDARD TELEPHONES & CABLES Ltd., and ROBERTON, J. S. P. May 2, 1941, No. 5715. [Class 40 (iv)] [Also in Group VI] To avoid, in a face-mask with a microphone attachment, interference with the microphone response due to reflections from the mask, the microphone 13 is provided with a frustoconical mouthpiece 14 of soft rubber which is designed in conjunction with the acoustic network of the microphone in the manner described in Specification 513,529 so as to give optimum sound transmission properties over the frequency band employed. The mouthpiece may have a cutaway to accommodate the nose, may be of skew-conical form when not in alignment with the wearer's mouth, and may be moulded integrally with the mask or the front cap of the microphone.
Patent GB-1415100-A (GB)
Title: Composite materials
IPC: F16C33/20
Filed: 1973-02-06
Abstract: 1415100 Coated metal GLYCO-METALLWERKE DAELEN & LOOS GmbH 6 Feb 1973 [11 Feb 1972] 5724/73 Heading B2E [Also in Division F2] A composite structure comprises a metal support and a sliding layer carried by the support, the sliding layer including granulated and/or powdered polyimide resin in a polyimide binder. The sliding layer may also include additives for improving the sliding properties, e.g. polytetrafluoroethylene, a metal alloy, powdered graphite, molybdenum disulphide and oxides. In the region of the connecting surface between the sliding coating and the supporting body a gauze may be embedded in the sliding coating, e.g. a gauze consisting of tin-bronze. The supporting body may be a sintered structure made, e.g. from an alloy or a perforated steel or bronze plate. The supporting body may be coated on the side which is to carry the sliding coating with a sintered layer, e.g. an alloy. The structure may be produced by applying to a support a mixture of polyimide lacquer, granular or powdered polyimide and optionally additives homogenized to a low viscosity to pasty for mby spreading, and hardening the layer. The coating may be machined to final thickness before completely hardening. The product may be a sliding bearing. As shown in Figure 1, a gauze 2 of tinbronze is laid on steel supporting body 1. The gauze is pentrated by a mixture of polyimide particles 3, graphite particles 4 and polyimide lacquer 5. In other embodiments a sintered bronze layer is applied to a steel supporting, body, and the sintered layer impregnated with a mixture of polyimide particles, graphite particles and polyimide lacquer; perforated steel plate is coated on one side with a mixture of polyimide particles, graphite particles and polyimide lacquer the mixture penetrating the holes in the supporting body.
Patent GB-373606-A (GB)
Title: Improvements in petrol and like lighters
IPC: F23Q2/06
Filed: 1931-02-24
Abstract: 373,606. Frictional pocket igniters. DAVIES, H. H., Emildene, Orphanage Road, Erdington, Birmingham. Feb. 24, 1931, No. 5732. [Class 75 (iii).] The friction-wheel 11 is carried by a shaft 6 provided with a helix or quick pitch thread 7 engaging a slot or the like in a fixed plate 8 in a tube 5, a compression spring 14 being adapted, on opening the preferably spring - hinged lid 12, to force the helix through the plate 8 and thereby rotate the wheel 11 for igniting the wick. A cup 10 is provided in the upper end of the tube 5 to receive the wheel 11 in the normal position and form a stop for a plate 13 on the shaft to limit the upward movement. The Provisional Specification describes also a construction in which the helix extends from the bottom of the tube and engages a slot or the like in a partition in an outer casing into which the body of the lighter telescopes, the spring being provided between the partition and the body. The parts are adapted to be held in the telescoped position by a spring lid so that, on releasing the latter, the partition is caused to travel along and thereby rotate the shaft. The body is provided with perforations so that it can be immersed in fuel for filling purposes.
Patent GB-291512-A (GB)
Title: Improvements in or relating to paper folding machines
IPC: B65H45/22
Filed: 1927-03-01
Abstract: 291,512. Northern Press Engineering Co., Ltd., and Herbst, M. B. March 1,1927. Delivery apparatus; cutting and perforating apparatus.-In apparatus for longitudinally folding a web of paper i in zig-zag fashion, the web i. fed from a roll k, is first printed on both sides by printing-machines e, e<1>, and passes between longitudinal and transverse perforating-rolls l, n respectively and punching-rolls m intermediate the rolls l, n. After longitudinal folding by strips or wires o, the web is pressed by rollers e<2> and is given a final transverse fold by rollers s, s<1> before passing into a delivery box t. A hand-operated knife inserted in slots y in the sides of the box may be employed to cut the folded web into sections, or cutting means may be provided on the cylinders s, s'.