baber/WOPTO huggingface dataset:
Patent GB-586082-A (GB)
Title: Improvements in or relating to the securing of insulating material to conducting material
IPC: H01G4/228
Filed: 1944-11-02
Abstract: 586,082. Insulators ; couplings. FRECKLE. TON, A. Nov. 2, 1944, No. 21516. [Classes 36 and 38 (i)] Insulating material is secured to conducting material by applying between them a cement, comprising a cold-setting plastic and a fibrous filler, and allowing the plastic to set. An insulating bush of mica-filled " Bakelite " (R.T.M.) which is moulded around a brass terminal post of a condenser may be secured in an aperture in the top of a tin plate metal can by a cement of 67.2 per cent. Catacol " (R.T.M.), 12.8 per cent. " Catacol " (R.T.M.) acid accelerator, and 20 per cent. of an asbestos powder which will pass through a screen of 300 meshes per square inch. To form a satisfactory bond the metal may be sand blasted, and the aperture may have three equidistant recesses into which the cement is forced to prevent relative rotation. Alternatively, the aperture may be threaded to receive a screw-threaded bush coated with the cement, or it may have projecting lugs, which either engage in recesses in the bush or are superimposed on projecting legs of the bush. Specification 508,693 is referred to.
Patent GB-1143490-A (GB)
Title: Ethylenically-unsaturated fluorocarbon epoxides and polymers prepared therefrom
Inventor: ANDERSON BURTON CARL
IPC: C08G65/14
Filed: 1966-05-16
Abstract: 1,143,490. Fluorine compounds. E. I. DU PONT DE NEMOURS & CO. 16 May, 1966 [14 May, 1965], No. 21575/66. Heading C2C. [Also in Division C3] The invention comprises compounds of the general formula wherein n is 0 or an integer from 1 to 10 and X is F and if desired Cl, at least 75% of the X atoms being F and, when X is Cl, the carbon atom to which it is attached being at least 1 carbon atom removed from the trifluorovinyl and trifluoro-oxirane groups and any other carbon atom having Cl attached thereto. The compounds may be prepared by epoxidizing compounds of the formula and dechlorinating the products. The starting materials may be prepared (a) by decarboxylation of the Na salt of an #-chlorodifluoro-(#-1)- chlorofluoro-perhalogenated saturated normal aliphatic C 5-15  monocarboxylic acid, or (b) by telomerization of CF 2 Cl-CFCll with C 2 F 4  followed by dehydroiodination of the telomer.
Patent GB-406688-A (GB)
Title: Improvements in or relating to screening or filtering apparatus
IPC: B01D33/00
Filed: 1932-08-02
Abstract: 406,688. Filters. BRASSERT & CO., Ltd., H. A., Brook House, Walbrook, London.- (Brassert, H. A. ; 310, South Michigan Avenue, Chicago, U.S.A.) Aug. 2, 1932, No. 21683. [Class 46.] Relates to a screening or filtering apparatus for liquids or gases, of the type having a cylindrical or drum-like filter frame from which the residue is removed continuously by backwashing, and is characterized by the provision of a number of separate small screening or filtering elements assembled in recesses or apertures in the frame in a readily removable manner at a depth sufficient to permit of the residue being retained in the pockets formed between the filtering elements and the bounding surface of the frame, until removed by the backwashing operation. The filtering-elements may be rectangular, circular or oval in shape and are preferably arranged in staggered relationship. The circular elements are retained in the recesses by screwed rings, and the rectangular elements by rectangular frames 27 held in position by lugs 28 secured by bolts 29. The filter is carried on a rotary frame having a conical bottom 31 whereby wear may be taken up. The inlet 2 for the fluid is in communication with the space 5 and the flow of the fluid is into the drum and downward to the outlet 20. The backwash header 34 is connected to its fluid supply by flexible pipes 39, 40 and the header is supported in oblique slots 35<a> whereby, by vertical adjustment of the rod 38, the header is adjusted towards or away from the filter frame. The backwash fluid issues through one or two vertical slots in the header 34 opposed to similar slots in the discharge header 48 which is adjustably and removably screwed to the filter casing. When two slots are used, steam may be used in connection with one slot and water with the other. Or a primary backwash may be effected with a chemical reagent and a secondary backwash with water, steam or compressed air. The headers 34, 48 have lateral curved flanges 44, 50 which bridge the longitudinal members of the frame and seal the backwash zone from the main part of the filter. The filter medium may be supported on either or both sides by perforated plates. In a modification, the fluid is admitted to the annular space between a stationary casing and a rotary filter drum, the fluid leaving through ports in the drum shaft which is hollow and connected to the outlet pipe. The backwash is effected by a return flow of some of the filtered liquid. In a further modification, the casing and the drum are stationary, the backwash nozzle or header being arranged to rotate in contact with the drum. The fluid enters the drum through an opening in one end wall and emerges through an opening in the bottom of the casing. The backwash is effected by a return flow of some of the fluid and the residue and backwash fluid escape through a hollow shaft carrying the backwash header. Suction may be used to assist the passage of the backwash fluid.
Patent GB-618264-A (GB)
Title: Improvements in gaseous fuels
IPC: C10L3/00
Filed: 1946-07-19
Abstract: 618,264. Gaseous fuels. WHITE, S. H. July 19, 1946, No. 21701. [Class 55 (ii)] A gaseous fuel for use in welding and cutting of metals and for like purposes comprises a mixture of propane or propane and butane with ethyl ether and benzine in the following proportions by weight, 82 - 89 per cent propane or propane and butane, 5¢ - 9 per cent ethyl ether and 5¢ - 9 per cent benzine. Methyl ether or a synthetic ether may replace the ethyl ether and the benzine used may be either the high or low boiling point benzine.
Patent GB-241146-A (GB)
Title: An improved steam turbine set having a reverse turbine
IPC: F01D1/30
Filed: 1925-08-29
Abstract: 241,146. Boltshauser, H. Oct. 28, 1924, [Convention date].. Idly-running stages, preventing adverse conditions in. - In a turbine installation having a reversing turbine of the disc type, when the reversing turbine 1 is being driven idly by the forward turbine its ventilation losses are reduced by swinging a number of pivoted blades 3 into the closed (dotted) position, thereby masking the reversing blades 2. A spindle 15 actuates the blades 3 simultaneously through an arm 14, a ring 12 and suitable links, the blades 3 being pivoted in stator members. Where the reversing turbine comprises more than one rotor, the blades 3 are preferably arranged to the rear of the last rotor.
Patent GB-223358-A (GB)
Title: An improved safety braking device for mineral waggons and the like
IPC: B61H9/04
Filed: 1923-08-28
Abstract: 223,358. Thomas, C. Aug. 28, 1923. Back struts; railway and like continuous chain, rope, rod, and shaft. - Means for arresting mineral wagons in the event of the breakage of a coupling comprises bars hinged at one end to the vehicle and adapted to be dropped into engagement with the ground by a. pull exerted on safety chains extending between the vehicles. The hinged bars a are each normally held in the raised position by a crank pin i hinged at g in a fixed bracket h and provided with an additional crank arm j engaging a cam slot k formed in a slidable rod d which may be held in position by a spring m. When a. train of wagons is made up chains c attached to the rod d associated with the rear bar a are fastened to the rear of the preceding vehicle or to the chain at the rear of that vehicle. In the event of the breakage of a coupling, the rod d is moved forwardly by the consequent pull on the chain c causing the crank pin i to be swung into the position shown in Fig. 3 thereby permitting the bar a to fall. The bars a instead of being arranged as shown may be hinged at the end of the vehicle and extend towards the middle thereof. The releasing device for the bars a may comprise a transverse bar hinged at one end and adapted to be released at its other end by the movement of the rod d. In a further modification, the crank mechanism for raising the bar a is replaced by a U-shaped bar fixed to the sliding rod d and arranged so as to support the bar a in the normal running position.
Patent GB-1113442-A (GB)
Title: Electrical signal translating apparatus
Inventor: GUNN JOHN BATTISCOMBE
IPC: H03K3/02
Filed: 1965-05-21
Abstract: 1,113,442. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 21 May, 1965 [12 June, 1964], No. 21756/65. Heading H1K. An electric field in excess of a threshold value applied to a body of Ga As or like polar semiconductor produces in the body an abrupt fall of conductance, in a time of the order of 10<SP>-10</SP> seconds, which can give rise to current fluctuations at microwave frequency as described in Specification 1,070,261. The fall in conductance is associated with the formation, adjacent the cathode terminal of such a body, of a localized region or domain of abnormally high electric field and this domain propagates towards the anode terminal where it is dissipated. The current fluctuations described in the abovementioned prior Patent are shown to be the consequence of successive transits of such domains through the body. The invention exploits this new understanding of the effect, and its claims relate to a system in which the body has at least three electrodes which are selectively energized to produce appropriate fields in the body. Other aspects of the subject matter are claimed in Specifications 1,113,443, 1,113,444, 1,113,445, 1,113,446 and 1,113,447. The description with respect to Figs. 1 to 3 (not shown) recapitulates the subject matter of Specification 1,070,261 and Figs. 4 to 7 (not shown) illustrate experiments which have been performed to establish the physical mechanism of the effect. Fig. 8 (not shown, but see Specification 1,113,444) depicts input voltage and output current pulse shapes related to the use of the effect to produce a single domain transit, i.e. pulsed operation. Figs. 9a to 9c (not shown) depict diagrammatically various electrode configurations and Figs. 10 and 11 (not shown) input and output pulse shapes obtainable by their use. In particular, a voltage less than that necessary to establish the required threshold field may be applied between two electrodes and a domain initiated by applying an appropriate potential to a third electrode. Fig. 12 shows a suitable three-electrode device consisting of a wafer 10 with a terminal 48 connected to a contact covering one surface of the wafer, and terminals 46, 47 connected to contacts on the opposite wafer surface which are made by covering this surface with metal and then cutting a slot 49 to separate this covering into two electrodes. Figs. 13 to 17 (not shown, but see Specifications 1,113,443, 1,113,445 and 1,113,446) depict bodies of irregular shape and/or non-uniform resistivity, and systems exploiting such bodies, e.g. as logic elements.
Patent GB-1469891-A (GB)
Title: Method of inserting a fiberglass handle in an article
IPC: B25G3/34
Filed: 1975-05-21
Abstract: 1469891 Jointing NUPLA CORP 21 May 1975 21766/75 Heading B3V [Also in Divisions B4 and B5] A fibreglass handle is inserted in the head of a hammer, axe, shears etc., by a mechanical press so that the speed of insertion slows towards the end of the press-stroke and adhesive (not shown) in the head socket is backwardly extruded to fill the space between the handle and socket without spillage and voids. A resilient insert 93, Fig. 5, centres the shaft during curing of the adhesive, and an end plug 94 is provided resting on masking tape 96. As shown the press has four rams 23-26 driven 90 degrees out of phase with each other by connecting rods 19-22. The connecting rods engage crank-pins on a train of gears 11-14 which are driven through a belt by an electromoter. The shafts 71, 72, 74 are located against a bar 95 by clamps 35 which have opposed clamping rollers (45, 46), Fig. 4 (not shown), spaced by a stop-screw (40) and at least one of which is movable towards the other by a spring (39). Cups 27 on the rams are resiliently mounted, Fig. 3 (not shown), to accommodate variations in the shafts.
Patent GB-1039506-A (GB)
Title: Improvements in drinking appliances for poultry
IPC: A01K39/022
Filed: 1965-05-24
Abstract: 1,039,506. Valves. H. RUETER. May 24, 1965 [May 23, 1964], No. 21836/65. Heading F2V. [Also in Division Al] The supply of water to a poultry drinking vessel 1 is through a valve 12 closed by a predetermined weight of water in the trough, the valve comprising a plunger 17 biased by spring 21 into contact with the base 4 of a socket 2 integral with the vessel 1, the upper end of the plunger being formed as a valve plate which seals against a seating 19. A further spring 14 surrounds the water supply connection 11 and extends between an adjustable bush 10 and a flange 13 on the valve 12. A water outlet 3 is formed in the socket 2. When the connection 11 is suspended from a stationary support the valve parts are as shown in Fig. 6 so that water flows through space 24 and outlet 3 to a trough formed on vessel 1. When the trough contains a predetermined amount of water, the spring 14 is compressed and socket 2 and plunger 17 move downwardly causing plate 18 to seal against seating 19, the valve reopening when water is removed from the trough.
Patent GB-257954-A (GB)
Title: Improvements in or relating to writing fluids
IPC: C09D11/16
Filed: 1926-09-04
Abstract: 257,954. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Ranger, P. H.). Sept. 5, 1925, [Convention date]. Ink.-A quick-drying writing ink, applicable for use with recording-pens in wireless receiving- instruments, comprises a base of waxy material. such as beeswax, carnauba wax, or paraffin wax, in which the colouring matter is mixed; for example, an oil-soluble aniline dye is dissolved in the melted base. Oil may be added to lower the melting-point of the mixture. In use the ink is liquefied by heat applied to the pen or by a separate heating-apparatus.
Patent GB-1456607-A (GB)
Title: Sublimable agricultural chemicals
IPC: A01N25/18
Filed: 1974-05-16
Abstract: 1456607 Sublimable agricultural chemical composition OGAWA & CO Ltd 16 May 1974 [15 June 1973 (2)] 21884/74 Heading A5E Sublimable agricultural chemical composition in the form of rough granules, pulverised powders or tablets comprises triisopropyl-S- trioxane or tritertiarybutyl-s-trioxane as the diluent or carrier of one or more agricultural chemicals mixed therein. Suitable agricultural chemicals include malathion, symetryne, diazinon, kasugamycin and other carbamates and phosphates.
Patent GB-904605-A (GB)
Title: A method of producing filaments and fibres by spinning sulphuric acid solutions of acrylonitrile polymers
IPC: D01F6/18
Filed: 1961-06-16
Abstract: An acrylonitrile polymer, containing, if desired, a copolymer of vinyl compounds, is dissolved in 70-75% by weight sulphuric acid and the resulting solution wet-spun into a precipitating bath containing 48-56% by weight sulphuric acid.  Specified vinyl compounds, which should not be present in amounts exceeding 15% of the polymer, are vinyl pyridine, vinyl acetate and methacrylic acid.  Desirably the precipitating bath contains 50-55% by weight sulphuric acid and is maintained at 15-20 DEG C. In an example, a 10% polyacrylonitrile solution is wet-spun into such a bath, washed, stretched in a boiling water bath, dried, cut and shrunk to form staple fibres.
Patent GB-1263025-A (GB)
Title: Process for producing triethylaluminium
IPC: C07F5/06
Filed: 1970-05-06
Abstract: 1,263,025. Triethylaluminium and nickelcontaining catalysts used in the preparation thereof. SUMITOMO CHEMICAL CO. Ltd. 6 May, 1970 [6 May, 1969], No. 21949/70. Heading C2J. Triethylaluminium is prepared by reacting ethylene with an alkylaluminium compound at above atmospheric pressure (e.g. 5-100 atmospheres) in the presence of a catalyst comprising a nickel compound and at least one organic compound selected from conjugated diolefins and their oligomers, diallyl ethers and alkylsubstituted derivatives thereof, styrene and alkyl-substituted derivatives thereof, alkyl acrylates or methacrylates and nitrile compounds. The reaction is usually effected at 0- 160‹ C. by either a batch, semi-continuous or continuous process. The alkylaluminium starting material may contain some, usually less than 6%, dialkylaluminium hydride in addition to trialkylaluminium. If more than 6% of the hydride is present, olefin is usually added prior to the displacement reaction to convert the hydride to trialkylaluminium. The alkyl groups of the alkylaluminium compound may be the same or different and mixtures of compounds may be used. The nickel compound and organic compound are thought to form a co-ordination compound at a simple mol ratio between 2 : 1 and 1 : 2. The nickel compound may be the chloride, nitrate, carbonate, stearate, naphthenate or carbonyl, bis-acetylacetonatonickel or bis-cyclopentadienyl nickel.
Patent GB-1120954-A (GB)
Title: Vinyl-dioxans
Inventor: COSTAIN WINSTON
IPC: C08F24/00
Filed: 1966-05-18
Abstract: 1,120,954, 2 - Vinyl -1,4 - dioxan polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 April, 1967 [18 May, 1966], No. 22037/66. Heading C3P. [Also in Division C2] 2-Vinyl-1,4-dioxans of the general formula in which R 1  and R 2  which may be the same or different are individually hydrogen, halogen, alkyl, hydroxyalkyl, halogenoalkyl, cycloalkyl, aryl or aralkyl, or R 1  and R 2  together with the CH groups to which they are attached form a homocyclic or heterocyclic ring system, may be polymerized or co-polymerized with other monomers and with unsaturated polyesters and may be used for modifying the properties, e.g. increasing the moisture uptake, of polymers such as polyacrylonitrile and polystyrene.
Patent GB-215645-A (GB)
Title: Front wheel driving gear for three-wheeled motor-vehicles
IPC: B62D61/08
Filed: 1923-09-01
Abstract: 215,645. Westermann, E. Sept. 1, 1923. Wheel forks.-The driving and steering wheel 2 of a three-wheeled vehicle is mounted in a frame 11 pivoted at 12 to the steering-fork 8, springs 13 being interposed between the frame 11 and the fork. The steering pivot passes, as shown, well to the rear of the wheel spindle 10.
Patent GB-1498976-A (GB)
Title: Camera viewfinder including an information indicating device
IPC: G02B5/04
Filed: 1975-05-22
Abstract: 1498976 Pentaprism viewfinders ASAHI KOGAKU KOGYO KK 22 May 1975 [30 May 1974] 22120/75 Heading G2J A camera viewfinder pentaprism (having a first transmission face 1, reflection faces 2, 3, 4 and a second transmission face 5) is provided with a device for displaying information (e.g. lens aperture data) in or around the image viewed through the view-finder. The device comprises a thin triangular prism 7 of shape similar to a side face of the pentaprism, see Fig. 2, and positioned to receive information light rays along face 10 and a second prism 9, Fig. 3, attached to the external surface of reflection face 4 and arranged to receive light rays from prism 7 and reflect them into the pentaprism through a slot 6 in surface 4.
Patent GB-832645-A (GB)
Title: Improvements relating to water closets
IPC: E03D1/26
Filed: 1957-07-13
Abstract: 832,645. Sanitary closets. JOHNS & CO. Ltd., E., and STOTT, C. K. Aug. 5, 1958 [July 13, 1957], No. 22257/57. Class 26. In a water closet of the kind which has a flushing cistern 1 combined therewith as a suite by being close coupled to and supported from a platform 2 at the rear of the flushing basin having two traps, the intervening space having an air extraction pipe 10 within a discharge pipe, or a depending extension 9 thereof, through which the water enters the basin serving to initiate thereby a syphonic discharge of the basin the pipe 10 mounts a non-resilient rigid, generally flat member such as a washer 13, to make a substantially leakproof joint against the floor 12 of the flushing inlet 3 in the region of the opening 11. In, Fig. 1, the washer 13 has two recesses 14 with peripheral flanges 15, but there may be only one such recess. The floor 12 may have a recess in the region of the opening 11, into which the washer 13 can enter and bed against the base of the recess. Alternatively, the washer 13 may engage the head of a sleeve fastened coaxially to the opening 11 and extending above the floor, or the floor may be raised to form a flat minor shelf on which the washer can rest. The lower part of the pipe 10 may have a stop 17 for retention of the washer 13. Specification 820,833 is referred to.
Patent GB-626653-A (GB)
Title: Improved manufacture of fitted hard alloys
IPC: C22C1/05
Filed: 1946-07-26
Abstract: In the manufacture of fritted hard alloys, the hard constituent, such as tungsten carbide, is ground to a powder in a ball mill made of a material which is capable of being acted upon by a reagent, e.g. hydrochloric acid, which does not act upon the hard constituent, and the impurities introduced during milling are eliminated by a subsequent attack by the reagent.  The purified and ground material may then be coated with metal by immersing it in a concentrated solution of a salt of the coating metal, e.g. cobalt chloride, evaporating the liquid and reducing the dry powdered mass, while hot, by means of hydrogen.  The mixture may then be fritted in known manner.
Patent GB-1397188-A (GB)
Title: Continuous production of sodium dichloroisocyanurate dihydrate
IPC: C07D251/36
Filed: 1973-05-11
Abstract: 1397188 Sodium dichloroisocyanurate dihydrate FMC CORP 11 May 1973 [15 May 1972 29 June 1972] 22477/73 Heading C2C Sodium dichloroisocyanurate dihydrate is produced by a continuous process without the coproduction of sodium chloride in the same aqueous medium by chlorinating cyanuric acid with sufficient chlorine and sodium hypochlorite and/or sodium hydroxide to produce solid dichloroisocyanuric acid in a first aqueous medium at 10 at a pH of from 1À5 to 3À5 and at a temperature of from 5 C. to 45 C., the mole ratio of said cyanuric acid to said alkali being from 1À90 : 1 to 2À1 : 1, separating at 14 the solid dichloroisocyanuric acid from the first aqueous medium, neutralizing at 20 the solid dichloroisocyanuric acid with sodium hydroxide in a second aqueous medium at a pH from 6 to 7 and a temperature of 5 C. to 65 C. to form sodium dichloroisocyanurate dihydrate particles, separating at 24 the sodium dichloroisocyanurate dihydrate particles from the second aqueous medium, recycling by 28 the second aqueous medium, and drying at 30 the sodium dichloroisocyanurate dihydrate particles at a temperature of 50 C. or below to remove at least 95 % by weight of the uncombined water and to produce a free-flowing, particulate, sodium dichloroisocyanutrate dihydrate product substantially free of sodium chloride contamination. The second aqueous medium is preferably recycled to the neutralization step but may be recycled to the chlorination step. Preferably at least 99% of the uncombined water is removed in the drying step. The solid dihydrate product can be dried to remove some of the combined water to result in a mixture of the dihydrate and monohydrate and/or anhydrous dichloroisocyanurate. Such a product containing more than 11% of water by weight constitutes part of the invention.