baber/WOPTO huggingface dataset:
Patent GB-1045516-A (GB)
Title: Temperature responsive electric switch
IPC: H01H35/26
Filed: 1965-06-14
Abstract: 1,045,516. Thermal switches. WILCOLATOR CO. June 14, 1965 [July 15, 1964], No. 25132/65. Heading H2B. A switch of the kind wherein a capsule 30 acting on a spring blade contact arm 22 is adjustably positioned by a coaxial control shaft 47 threaded through a casing wall and provided with an over-riding " OFF " position wherein the contact arm 22 is displaced by a lug on a washer 65 (splined to shaft 47) acting via a slidable member 80 is made compact by forming the member 80 as a rectangular window frame, allowing part of the capsule 30 to extend therethrough.
Patent GB-437843-A (GB)
Title: Improvements in or relating to the separation of asphalt from heavy oils or residues
IPC: C10G21/00
Filed: 1934-08-31
Abstract: Asphalt is separated from heavy oils or residues by a counter-current treatment with benzine in which the separating column contains only the oil and the benzine, there is no mechanical agitation, and the asphalt settled out at the bottom of the column is washed continuously by incoming benzine.  For example, light benzine at 70 DEG  C. passes from a container A through a regulating valve T and a spreading nozzle N<1> to the bottom of a column E, and heavy oil at 50--70 DEG  C. from a container B through a valve S and a perforated tube T<1> to the centre part of the column.  So long as the benzine remains relatively free of oil it is passed through a pipe L to a cooler K<2> and tank H, and returned by a pump P<1> to the container A.  When the benzine is dissolving oil in sufficient quantity it is diverted through a pipe O to stills G<1>, G<2> or other evaporators, from which the benzine is passed to a condenser K<1> and the tank H; the residual oil is passed to a receiver J.  The asphalt is removed from the base of the column to stills F<1>, F<2> or other <PICT:0437843/III/1> evaporators, and when freed of benzine is discharged through a pipe V; the evaporated benzine is passed to the condenser K<1> and tank H.  The lower part of the column E is preferably insulated or steam-jacketed.
Patent GB-1430339-A (GB)
Title: Winding arrangement
IPC: B65H54/42
Filed: 1974-06-06
Abstract: 1430339 Web roll drives BARMAG BARMER MASCHINENFABRIK AG 6 June 1974 [7 June 1973] 25199/74 Heading B8R [Also in Divisions D1-D2] A roll 4, Fig. 2, for winding fabrics, sheets or tapes is driven by frictional contact with a drive roller 8 that is mounted for free rotation relative to its drive shaft 9, the roller 8 being carried by supports 10 that are displaceable axially of the drive shaft 9 as well as perpendicularly thereto so that the roller 8 and the drive shaft 9 can be in a driving relationship through at least one pair of bevelled wheels 16, 17, these wheels being engageable and disengageable through radial displacement of the supports 10 relatively to the shaft 9 and adjustable in their transmission ratio through axial displacement of the drive roller supports 10. In Fig. 2, the shaft 19 extends through the roller 8 but it may, alternatively be outside the roller 8 and parallel thereto, the bevelled portion 16 being then on the outside of the roller 8. A replaceable control cam 20 may be carried by the fixed axis 6. As the package 1 increases in diameter, a follower 22 carried by the axially movable support means 10 rides down the cam 20 in a manner permitting a spring 13 to move the support means 10 and the roller 8 to the left in Fig. 2. This increases the peripheral speed of the roller 8 as the package grows in diameter. Alternatively the roller 8 may be manually displaced or displaced according to a programme or time control. The invention permits a plurality of rollers 8, with respective parts 16, 17 to be mounted on a common shaft 9 and each roller 8 can then have its speed adjusted relatively to that of the other rollers 8.
Patent GB-641451-A (GB)
Title: Thread linings for railway sleeper screws
IPC: E01B9/18
Filed: 1947-09-16
Abstract: When a concrete railway sleeper is moulded internal thread linings formed by one of the methods described in Specifications 609,485, 621,984 and 641,444, which essentially involve winding a metal strip on a mandrel into a helical-shaped coil of which the edges overlap, are placed in the mould either before or after the concrete but before the concrete sets or vibration is applied and the concrete is allowed to set and harden with the internal thread linings in position, so that they are permanently embedded. Before putting a lining into a mould the mandrel on which it was formed is replaced by a screw and the assembly coated with hard insulating material.  The coated assemblies are positioned by a jig, care being taken that the screws do not touch the concrete. The screws are removed when the concrete has set.  Instead of metal the linings may be made of fabric impregnated with an insulating synthetic resin.  The linings may be coated with rubber to absorb shock and prevent loosening. Specifications 13565/12, 236,950, [both in Class 87 (ii)], and 412,537 also are referred to.
Patent GB-1403649-A (GB)
IPC: C08F8/00
Filed: 1973-05-25
Abstract: 1403649 Modified butadiene polymers THIOKOL CORP 25 May 1973 [5 June 1972] 25317/73 Heading C3P Butadiene polymers and copolymers containing terminal functional groups are reacted at double bonds with a perfluoroalkyl iodide. Polymers reactedin examples are liquid hydroxy-, carboxy- or phenyl-terminated polybutadienes and hydroxy-terminated butadiene/styrene and butadiene/acrylonitrile copolymers. The products may be dehydroiodinated (not exemplified).
Patent GB-1115353-A (GB)
Title: Improvements in flush siphons
Inventor: DUDLEY THOMAS IVOR
IPC: E03D1/08
Filed: 1965-06-15
Abstract: 1,115,353. Siphon-discharge water-wastepreventers. THOMAS DUDLEY Ltd. 15 June, 1966 [15 June, 1965], No. 25320/65. Heading E1C. A flush siphon comprises a cylinder 10, including the up-leg 12, within which a piston 15 is moved for siphonic action, and a ported tube 19 slidable in and through the cylinder upper end under the action of the piston 15 to close or open said end. The tube 19 may be open at the top, the ports 20 opening inside the cylinder 10 normally but closed when it is raised. In a modification the tube is closed at the top and has at least one wall opening below ports therein, which are displaceable out of the cylinder.
Patent GB-654739-A (GB)
Title: Improvements in the treatment of materials consisting wholly or partly of wool
Inventor: FOULDS ROBINSON PERCY
IPC: D06M11/30
Filed: 1948-09-29
Abstract: Materials consisting wholly or partly of wool are placed in contact with a finely-divided solid compound of fluid halogen which liberates the halogen when left in contact with the wool, whereby the tendency of the wool to felt is reduced.  By "wool" is meant all animal fibres which are capable of felting.  The material may be in the form of fibres, yarn or fabric, and may be admixed with other materials, such as cotton.  The halogen compound may be bleaching powder and it may be mixed with an inert solid diluent such as china clay, sodium carbonate or fine sand.  After removal of the halogen compound the material may be washed and treated with an anti-chlor such as sodium bisulphite, or with an oxidizing or reducing agent such as hydrogen peroxide. In one example, a mixture of bleaching powder and anhydrous sodium carbonate is scattered over one face of a scoured woven mixture fabric consisting of 50 per cent cotton and 50 per cent wool. The fabric is wound on a roller and left in this condition for 18-20 hours, after which the powder is removed, and the fabric washed first with water containing Calsolene oil as wetting agent, and then with 1 per cent sodium bisulphite solution.  The Provisional Specification mentions the treatment of mohair and also refers to the treatment of wool with a solid substance, capable of liberating an oxidizing or reducing gas.
Patent GB-353736-A (GB)
Title: The manufacture of oxidation products of derivatives of higher fatty acids containing sulphur
IPC: C11C3/00
Filed: 1930-08-25
Abstract: Disulphides and sulphonic acids of higher fatty acids are obtained by oxidizing the derivatives of higher fatty acids containing sulphur prepared according to Specifications 339,675, [Class 2 (iii), Dyes &c.], 340,011, and 340,012.  The disulphides are formed intermediately and may be further oxidized to sulphonic acids. Halogen atoms and hydroxy groups in the initial products are not attacked and the final products may be saturated or unsaturated. They have a cleansing and disinfecting effect and the sulphonic acids have also a good resistance to acids and lime and a protective power. In examples (1) the product from heptachlorostearic acid and sodium sulphide (Specification 340,012) is oxidized with hypochlorite to the disulphide which is unsaturated and contains chlorine; further oxidation with permanganate yields the sulphonic acid, (2) the product from hexachlor-ricinoleic and sodium sulphide (Specification 340,012) is oxidized with permanganate to a sulphonic acid, (3) the product made by heating pentachlorinated stearic acid with aqueous caustic soda and then with sodium sulphide is oxidized with permanganate to a saturated sulphostearic compound containing chlorine and hydroxy groups, (4) the product from tetrachlorinated oleic acid and potassium hydrosulphide is oxidized with hydrogen peroxide to a disulphide; further oxidation with permanganate gives a sulphonic acid.  Sulphurized products from tetrachlorolauric and pentachloropalmitic acid and a halogen derivative of pelargonic acid are also mentioned as starting materials.
Patent GB-808108-A (GB)
Title: Production of polyvinyl alcohol
IPC: C08F8/12
Filed: 1956-08-20
Abstract: Polyvinyl alcohol is prepared by alcoholysing a polyvinyl ester, e.g. polyvinyl acetate, with a lower aliphatic alcohol containing 2 to 4 carbon atoms per molecule, e.g. ethanol, in the presence of an alkaline catalyst and a decolorization additive which reacts with aldehydes under the conditions of the reaction to yield colourless products.  Specified additives are hydrazine, hydroxylamine, butylamine, ethylene diamine, sodium borohydride, diethyl malonate, hydrogen peroxide, urea peroxide and acetyl peroxide.  Specified catalysts are sodium and potassium hydroxides, sodium methylate and sodium ethylate.  Auxiliary solvents, e.g. ethyl acetate, benzene and methanol, may be present during the alcoholysis which may be partial or complete.  The polyvinyl ester and catalyst may be added periodically as the alcoholysis proceeds.
Patent GB-1329055-A (GB)
Title: Flow meter proving method and apparatus
IPC: G01F25/00
Filed: 1971-04-19
Abstract: 1329055 Measuring fluid flow; leakage detection M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 19 April 1971 [9 April 1970] 25444/71 Headings G1R and G1S In meter proving apparatus, a shuttle 32 accommodates a sphere 38 and is movable between two positions respectively in alignment with the inlet passage 31 (as shown in Fig. 4) and the outlet passage 48 of a meter proving loop 10 through which the flow of liquid e. g. petroleum in a main piping system can be diverted. The sphere is launched through the loop, being propelled by liquid flow, and its passage between detectors 13 and 14 is timed, the shuttle being returned by hydraulic cylinder 41 and piston rod 42 to a position in which it catches the sphere as it emerges from the outlet passage 48. The side plates 33 of the shuttle are in sealing engagement with the walls of the housing body 22. Any leakage of liquid between both side plates 33 and their associated sealing assemblies 64, Fig.6, is detected by a rise in pressure in ducts 81-83 and consequent operation of switches (96), (97) to energize a warning circuit on commencement of a proving cycle. The apparatus may be adapted for automatic operation as in Fig. 8 (not shown), the position of the shuttle being controlled by a bistable switch (102) whose state is determined by an electric switching circuit.
Patent GB-511234-A (GB)
Title: Improved condensation products and process of preparing the same
IPC: C08C19/00
Filed: 1938-08-31
Abstract: 511,234. Resinous condensation products. ARMOUR & CO. Aug. 31, 1938, No. 25487. 'Convention date, Dec. 13, 1937. [Class 2 (iii)] Condensation products ranging, from soft, plastic masses to hard solids are obtained by causing unvulcanized rubber in a solvent to react with a fatty acid containing at least six carbon atoms in the molecule, or chlorine substitution products thereof, in the presence of a Friedel-Crafts. condensation catalyst in an amount not less than one half that of the fatty acid, and subjecting the complex so obtained to hydrolysis. Specified acids are caproic, caprylic, capric, lauric, myristic, palmitic, stearic, arachidic, behenic, carnaubic, emetic and melissic acids ; unsaturated acids such as oleic, linoleic and linolenic, and chlorinated acids such as tetra- and hexa-chlorostearic acids and those obtained by chlorinating oleic, linoleic and linolenic acids. Mixtures of acids, e.g., from cottonseed oil or lard, may be employed. In an example, stearic acid is added to a solution of crude, unvulcanized rubber in tetrachlorethane &c. and, after stirring, aluminium chloride is gradually added, the reaction mixture being then refluxed at 140C. After cooling, the reaction mixture is slowly added to a mixture of ice and hydrochloric acid, heated, steam-distilled to' remove the tetrachlorethane, the product separated by drawing off the lower, aqueous layer and finally washed with dilute caustic soda. A hard, white, plastic mass is obtained. Other similar examples are given employing oleic, linolenic and chlorinated, oleic and linoleic acids. The products may be used for plastics, dielectrics, thermoplastic adhesives and for impregnating and waterproofing.
Patent GB-296710-A (GB)
Title: Improved process and apparatus for filling and emptying receptacles such as dust carts
IPC: B65F3/22
Filed: 1928-09-05
Abstract: 296,710. Daimler-Benz Akt.-Ges. Sept. 5, 1927, [Convention date]. Scavengers' carts.-In dust carts and vehicles for containing loose or granular material of the kind in which the receptacle comprises a rotatable drum having interior belical conveying devices the direction of rotation of the conveyer element is reversed during filling in order to complete the filling, a device is provided for indicating when the level of the material in the receptacle has risen to such a height that the direction in which the material is conveyed by the helical conveying surfaces is changed and therefore the correct moment for reversing the direction of rotation of the receptacle so as to cause the conveying surfaces to continue moving the material towards the opposite end of the receptacle. The receptacle is preferably closed at the back by a stationary wall in which a filling-hopper is inserted. To empty the receptacle which is preferably effected by rotating the conveyer element, either the stationary wall or a cover therein is opened about a hinge. The device for indicating the moment of reversal may be displaced either by the depth of filling or by the weight of the contents. The Specification as open to inspection under Sect. 91 (3) (a) comprises also as shown a drum receptacle a having conveyer blades e rotated by a pinion c on a shaft 7 co-operating with a toothed ring b and the material is loaded into the drum from dust bins &c. through a filling hopper h in a stationary wall i. When the drum is partially filled its rotation is reversed either manually or automatically. A flap u may be operated by the material at a certain level to switch in a reversing motor or the bins may operate a counting mechanism which at a predetermined number may switch in the reversing motor. The motor 14 when operated to reverse the drum's direction swings a lever 17 by means of a screw 16 and gears 15 to throw the dog 12 of a clutch into engagement with a bevel 9 mounted loosely on the drive shaft 7. The motor 14 is stopped as soon as the reversing gear is operated by means of a stop 18 engaging a throw-out switch 19. This subject-matter does not appear in the Specification as accepted.
Patent GB-401081-A (GB)
Title: Rotary internal combustion engine
IPC: F01C1/063
Filed: 1932-09-14
Abstract: 401,081. Rotary engines. DAW, Z. W., (also representative of DAW, A. W.), 11, Queen Victoria Street, London. Sept. 14, 1932, No. 25532. [Class 110 (ii).] In a rotary internal-combustion engine of the intermittent abutment type, as described in Specifications 300,784, [Class 110 (ii), Rotary engines &c.], and 346,686, the fuel inlet port 6 leads from an induction pipe 7 which has two branches 8, 9 leading to the fuel supply 12 and main exhaust pipe 5 respectively. Non- return valves 15, 15a of any type are supplied in these branches so that a back flow of gas from the engine shuts valve 15 and opens valve 15a, or during a suction through the port 6, valve 15 opens and the other closes. In the Figure, plate valves are supported on light springs 16, 16a.
Patent GB-224066-A (GB)
Title: Improvements relating to receptacles or cases for goods
IPC: B65D5/44
Filed: 1923-10-13
Abstract: 224,066. Cook, G. H. Oct. 13, 1923. Boxes made by bending sheet material; strengthening by corrugating and otherwise treating.-The tubular bod of a cardboard or other non-metallic box is of pentagonal or other polygonal cross-section and is strengthened by having the longitudinal edges a beaded or ribbed. The material may be of double thickness adjacent the ribs, or metal wire, &c. may be inserted in the ribs.
Patent GB-700758-A (GB)
Title: Improvements relating to rolling key clutches
Inventor: SMITH WILLIAM JAMES
IPC: F16D11/06
Filed: 1950-10-20
Abstract: 700,758. Positive clutches. BLISS CO., E. W. Oct. 19, 1951 [Oct. 20, 1950], No. 25646/50. Class 80 (2). A rocking key clutch, e.g. for connecting a press flywheel 8, keyed to a bush 7, to a crank shaft 1, comprises recesses 5, 10, partly in the shaft and bush respectively, containing a cylindrical key 12 from which crescent shaped parts have been removed, as at 13, to form the clutching part, a full diameter portion 14 being left at the centre of this clutching part. The portion 14 lies in an annular groove 15 in the bush 7 and affords an additional bearing support for the key, which is thereby strengthened. A 'locking pawl 16 of known form is provided in a groove 18 of the shaft and is operatively connected to the rocking key by means of cams 19, 20, the key being urged to the engaged position by springs 24, 25 and controlled by latch means coupled to the treadle of the press. As an alternative construction, the key may be provided with more than one full diameter portion, or the full diameter portion may be enclosed in a collar keyed to the shaft and received in an annular clearance recess in the bush, which may be divided into two parts.
Patent GB-650644-A (GB)
Title: Improvements in or relating to contact arms for instrument type relays
IPC: G01R1/08
Filed: 1948-10-01
Abstract: 650,644 . Electromagnetic relays. SANGAMO WESTON, Ltd. Oct. 1, 1948, No. 25660. Convention date, Feb. 6. [Class 38(v)]  In an instrument-type relay with magnetic contacts wherein resetting is effected by a reverse current through the moving coil 1 or an additional coil, a flexible connection is arranged between the moving contact and the shaft 12 of the moving coil allowing the moving parts to acquire a certain momentum which is suddenly applied to separate the contacts. In the form shown in Fig. 1 the movable contact 5 of magnetic material which co-operates with a fixed magnetic contact 6, is mounted on a flexible pointer 4 joined at its lower end to a rigid arm 13 carrying a partial or complete ring 13b encircling the pointer. In resetting, while the contacts 5, 6 are held magnetically together, the shaft 12 rotates and flexes the pointer 4 and the arm 13 moves round till the ring 13b strikes the pointer and separates the contacts. In a modification, Fig. 7, a rigid pointer 19 extends into the centre of a coil spring 23 carrying the contact 20 so as to strike it when a certain amount of bending has taken place. Specification 550,552 is referred to. The Specification, as open to inspection under Sect. 91, also describes modifications in which a coil or blade spring connects the moving contact to a rigid pointer which does not extend into the coil. This subject-matter does not appear in the Specification as accepted.
Patent GB-364137-A (GB)
Title: Improvements in or relating to screw propellers
IPC: B21H7/16
Filed: 1930-08-28
Abstract: 364,137. Screw propellers. ALUMINIUM, Ltd., 22, Canada Life Building, Toronto, Canada.-(Assignees of Handler, A. A. ; 2210, Harvard Avenue, Cleveland, Ohio, U.S.A.) Aug. 28, 1930, No. 25688. Convention date, Aug. 28, 1929. Drawings to Specification. [Class 114.] A wrought-metal screw propeller or propeller blade is made in accordance with the method forming the subject-matter of Specification 364,002 it having a metallic structure throughout, flow lines conforming to the counter of the blade and a cross-sectional area decreasing gradually from the root portion to the tip.
Patent GB-738454-A (GB)
Title: Improvements in or relating to the production of poliomyelitis virus vaccine
IPC: A61K39/13
Filed: 1953-09-17
Abstract: A poliomyelitis virus vaccine for immunizing primates is prepared by modifying poliomyelitis virus by serial passage in suckling rodents until it has become adapted to grow in chick embryos, inoculating chick embryos with said modified poliomyelitis virus and after a period of incubation in said chick embryos, harvesting the embryonic tissue and recovering the poliomyelitis virus therefrom; continuing the steps of inoculation, incubation and harvesting until the virus is modified so that it may be administered to primates by oral ingestion without causing illness but with the production of protective antibodies and then preparing the poliomyelitis vaccine from the harvested embryonic tissue of the final passage.  A poliomyelitis virus which will propagate in the central nervous tissue of rodents is obtained (a) from the American Type Culture Collection, or (b) by serial passage of a specified strain through mice and then hamsters of 6 to 8 weeks.  An aqueous suspension of the modified virus is inoculated intracerebrally into suckling rodents, preferably of 1 to 12 days old, and just prior to the time when they show evidence of paralysis, i.e. when the virus titre is at a maximum, the rodents are sacrificed and a suspension, usually isotonic, is made of their central nervous tissue.  This suspension is inoculated intracerebrally into other suckling rodents and serial passages through suckling rodents are made until the LD50 mouse titre of the virus suspension is at least 10-5.  The virus is then propagated serally in chick embryos, especially 7-day-old chick embryos with incubation at 37 DEG  C. for 7 days, until the virus has been modified sufficiently to be safely used on humans, as shown by tests with monkeys.  A live virus vaccine may be prepared by grinding the chick embryonic tissue in isotonic saline solution or Ringer's solution and centrifuging to remove gross tissue, if desired.  It may be taken orally alone or in admixture with food such as milk or chocolate.  A killed poliomyelitis virus vaccine is obtained by treating the live virus vaccine with an inactivating agent such as phenol, formalin or ethylene oxide.  A diagnostic antigen is obtained by drying the killed virus vaccine, extracting the dried material with a fat solvent and adding saline solution to the extracted product.