baber/WOPTO huggingface dataset:
Patent GB-1457356-A (GB)
Title: Process for the manufacture of resins comprising styrene/a- methylstyrene/idobutene
IPC: C08F212/00
Filed: 1974-05-22
Abstract: 1457356 Styrene/α-methylstyrene/isobutene polymers optionally containing saturated phenols HOECHST AG 22 May 1974 [8 June 1973] 22885/74 Heading C3P A process for the manufacture of a hard resin comprises cationically polymerizing a mixture consisting of 10-50% by weight of α-methylstyrene, 40-85% by weight of styrene and 5-50% by weight of isobutene which may contain up to 20% by weight (based on the olefinically unsaturated monomers) of a phenol or mixture of phenols in 20-150% by weight (based on the olefinically unsaturated monomers) of an inert organic solvent, in the presence of 0À1-1À0% by weight (based on the olefinically unsaturated monomers) of a Friedel- Crafts catalyst and, optionally, from 0À1-40% by weight (relative to the olefinically unsaturated monomers) of an ester of an organic carboxylic acid having 2-10 carbon atoms, at a temperature of - 20‹ to 120‹ C. If phenol is absent, the polymers consist of 10-50% by weight of α-methylstyrene, 40-85% by weight of styrene and 5-50% by weight of isobutene with softening points of 50-120‹ C., a relative viscosity (as a 30% solution in toluene at 25‹ C.) of 2À5-4À0 and a density of 1À01-1À07 g./c.c. The products, obtained when a phenol is present, consist of 8-42% by weight of α-methylstyrene units, 33-71% by weight of styrene units, 4-42% by weight of isobutene units and up to 16À5% by weight of the phenol and have a softening point (ring and ball test according to DIN 1995) of 50-120‹ C., a relative density of 1À03-1À06 (at 20‹ C.), a refractive index of 1À58-1À60 (at 20‹ C.) and a relative viscosity of 2À00-4À00 (as a 30% by weight solution in toluene at 25‹ C.). Examples (1)-(7) describe the polymerization of α-methylstyrene, styrene and isobutene with a BF 3 .CH 3 CO 2 C 2 H 5  catalyst in (1)-(4) toluene; (5) diisobutylene; (6) 1,2- dichloropropane; (7)-(8) toluene with ethyl acetate as the moderator and Examples (8)- (13) describe the polymerization of α-methylstyrene, styrene and isobutene in toluene with a BF 3 .CH 3 CO 2 C 2 H 5  catalyst and (9)-(12) phenol; (13)-(14) a mixture of phenol, the cresols and the xylenols. The resins are compounded with benzine, paraffin, ethylene/vinyl acetate copolymers and Micro-wax.
Patent GB-642503-A (GB)
Title: Improvements relating to vacuum braking systems
IPC: B60T13/46
Filed: 1948-08-31
Abstract: 642,503. Vacuum brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and BRACKENBURY, A. G. Aug. 31, 1948, No. 22898. [Class 103 (i)] A piston 2 for a vacuum brake cylinder 1 of the type in which when the brakes are released vacuum exists in the chambers on both sides of the piston, comprises a check valve 13, 14 for controlling communication between the two chambers, in which the check valve is so loaded that the degree of vacuum obtainable in the chamber above the piston is lower by a predetermined value than that obtainable in the chamber below the piston. By this arrangement the undersired application of the brakes due to a small loss of vacuum by leakage of air into the lower chamber is prevented. As shown, the check valve 13, 14 is loaded by a spring 18, the but if cylinder is mounted vertically, a weight, which may be that of the ball 13 itself can be used instead. The normal non-return ball valve 6, 7 is shown fitted in conjunction with the valve 13, 14, but is not essential.
Patent GB-878163-A (GB)
Title: Improvements in or relating to the manufacture of polyoxymethylenes
Inventor: WILSON WALTER
IPC: C08G2/00
Filed: 1959-07-03
Abstract: Trioxane is polymerized in the presence of an electrophilic catalyst, the water content of the reaction mixture being less than 0,1%. Specified catalysts are Friedel-Crafts catalysts particularly boron trifluoride, stannic chloride and ferric chloride complexes of these catalysts with water and organic compounds containing an oxygen, nitrogen (when weakly basic) or p  sulphur donor atom, non-oxidizing inorganic acids and their boron trifluoride complexes, e.g. dihydroxyfluoroboric acid and polyphosphoric acid, halogens and interhalogen compounds, and oxonium salts.  The polymerization may take place in the presence or absence of an inert liquid medium, e.g. hydrocarbons, nitro-hydro carbons and carboxylic esters.  Metallic ions are removed from the product by extracting with an organic solvent or a solution of a sequestering agent.  Specifications 557,873 and 748,836 are referred to.
Patent GB-882580-A (GB)
Title: Improvements in or relating to water radiator valve unions for heating systems
IPC: F16L19/06
Filed: 1960-07-01
Abstract: 882,580. Pipe joints. VABIX A. B. July 1, 1960 [July 3, 1959], No.23077/60. Class 99(1). A water radiator valve 1 has a pipe 2 inserted in the radiator connection 13 which has a flared end 14, a toroidal sealing ring 11 being clamped between a flange 6 on a lock nut 5 and the flared end 14 on tightening of a severed sleeve 9. The end of the nut 5 has a washer 7 therein which cooperates with a flange 4 on the tube 2 to prevent withdrawal of the tube 2 from the connection 13 but permit limited movement thereof. A washer 12 may be inserted between the ring 11 and flange 6.
Patent GB-659035-A (GB)
Title: High-temperature elastic-fluid temperature-measuring system
IPC: G01K1/00
Filed: 1949-09-06
Abstract: 659,035. Thermometers. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Sept. 6, 1949, No. 23080. Convention date, Sept. 8, 1948. [Class 97 (iii)] A system for measuring very high temperatures of gases or vapours in a container in which the gases are confined or flowing comprises a conduit 11f having a connection 11e with the container, a first constriction 11i in the conduit in the vicinity of the connection 11e, a second constriction 12c spaced from the first constriction 11i, provisions in the conduit for cooling the gases flowing between the two constrictions, means, such as the thermocouple 14, 15 for measuring the temperature of the gas in the vicinity of the second constriction 12c, means, such as the manually operable valve 13 for regulating the differential pressure over the second constriction, as measured by the gauge 16 so as to keep its ratio to the temperature as measured by the meter 15 constant, and a differential pressure meter 18 across the first constriction 11i whose readings may be calibrated in terms of the very high temperature to be measured. As shown, the conduit 11f forms part of a probe 11 and is contained in a tubular housing 11a through which the cooling medium may flow from inlets 11b, 11c to an outlet at the end 11d, the annular space between the housing 11a and the conduit 11f forming a coaxial static-pressure transmitting conduit 11g open at the upstream side 11e of the first constriction and communicating by a connection 11m with the meter 18. Preferably the static pressure transmitting conduit 11g is provided with a flexible expansible section 11j to permit differential temperature expansion of the housing 11a and the conduit 11g. Specification 628,556 is referred to.
Patent GB-901580-A (GB)
Title: Process for the recovery of argon in the production of ammonia synthesis gas
Inventor: EASTMAN DUBOIS
IPC: C01B3/36
Filed: 1960-07-04
Abstract: In a method for the recovery of argon as a by-product in the production of a mixture of hydrogen and nitrogen for ammonia synthesis, air is separated into an oxygen-rich fraction containing argon and a nitrogen fraction free of argon, the oxygen-rich fraction is reacted with a carbonaceous fuel and the product further treated to form a hydrogen-rich gas stream containing minor amounts of methane, carbon monoxide and argon, the gas stream then being washed with the nitrogen fraction to form a liquid fraction comprising nitrogen, argon, carbon monoxide and methane, the argon being recovered by a process which comprises passing the liquid fraction to a separate fractional distillation zone, effecting separation of the liquid fraction from the nitrogen by fractional distillation into a methane-argon liquid fraction and a nitrogen-carbon monoxide gaseous fraction and passing the methane-argon fraction to a second fractional distillation zone and effecting separation of argon substantially free from methane and heavier constituents.  Pure liquid nitrogen from the air separation may be supplied directly to the first fractional distillation zone as reflux.  Preferably gaseous nitrogen under pressure is condensed in indirect heat exchange relationship with methane in liquid form in the second fractional distillation zone to supply heat thereto and liquid nitrogen at reduced pressure is vapourized in indirect heat exchange with gaseous oxygen effecting condensation thereof.
Patent GB-316876-A (GB)
Title: Improvements in polarized call bells
IPC: G10K1/062
Filed: 1929-07-29
Abstract: 316,876. Telefonaktiebolaget L. M. Ericsson. Aug. 4, 1928, [Convention date]. Addition to 297,389. Bell-operating mechanism, electric; bell sounding-members, supports for.-A polarized call bell, especially for telephone instruments, provided with two bell domes which partially enclose the magnet system, has the axes of the domes forming an oblique angle with the plane containing the longitudinal axes of the electromagnets. The domes and the armatures are carried by a supporting frame which is displaceable relatively to the magnet system. As shown, the bell domes 5 are arranged so that their axes are inclined to the plane containing the axes of the electromagnet coils 2. The magnet system comprises a U- shaped strip 1, 3 of soft iron, the legs 1 of which form the cores of the coils 2, and an intermediate permanent magnet 6 secured to the cross piece 3. The domes 5 and the armature 22 are carried by a frame 9 having lugs 18, 19 by which the whole bell is secured to the telephone apparatus. The permanent magnet fits in slots in bent over lugs 13, 14 on the frame and the whole magnet system can be displaced relatively to the frame by a screw 24. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the axes of the domes are in the same straight line parallel or perpendicular to the magnet plane. This subject-matter does not appear in the Specification as accepted.
Patent GB-592090-A (GB)
Title: An improved honeycomb for a beehive
IPC: A01K47/02
Filed: 1944-11-23
Abstract: 592,090. Honeycomb for bee-hives. CASES, J. R. Nov. 23, 1944, No. 23315. Convention date, Nov. 26, 1943. [Class 5 (ii)] Honeycomb is formed by juxtaposed strips of material formed into semi-hexagonal corrugations. Assemblies of such strips are attached end-on to faceted sheets 5 arranged in pairs and more widely separated at the base than above by spacers 10. Such spacers may be turned on edge to allow the cells and their supporting plates to be levered apart. An electric or other heater may rest on the spacers to loosen the wax and allow the honey to run out.
Patent GB-517597-A (GB)
Title: Improvements in or relating to deflecting means for use with cathode ray tubes
IPC: H01J29/76
Filed: 1938-08-08
Abstract: 517,597. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and TINGLEY, G. R. Aug. 8, 1938, Nos. 23330 and 27367. [Class 39 (i)] To avoid keystone distortion in a cathoderay tube wherein the screen 13 is inclined to the axis of the first electro-magnetic system 18 giving deflection along one co-ordinate, the deflection in the other co-ordinate produced by the second electromagnet 16 is varied according to the line scanned ; this is obtained by inclined pole pieces 21 on which may be placed coils 22 for compensating any unbalanced D.C. component produced by coil 16. An additional yoke 7 may be used to give further scan amplitude correction ; if increase of gun voltage is used, to compensate for reduction in sensitivity the current through the coil on the yoke 7 may be increased. Specification 463,972 is referred to.
Patent GB-826490-A (GB)
Title: Improvements in pile extractors
Inventor: BRANDER ARTHUR
IPC: E02D9/02
Filed: 1956-07-27
Abstract: 826,490. Withdrawing piles. BRITISH STEEL PILING CO. Ltd. July 16, 1957 [July 27, 1956], No. 23334/56. Class 68(2) [Also in Group XXX] In a pile extractor, particularly for sheet piles, of the kind comprising a fluid pressure-operated single-acting ram and cylinder assembly, the ram 8, Figs 2, 3, applying an impact force to a saddle 7 forming part of the head 6 of the cylinder 4 and thus imparting an upward tractive force to a pile held by jaws 11 positioned at the foot of the cylinder 4 and suspended from the saddle 7, as by a wire grommet 12, a variation of the impact force is obtained by means of a piston valve 16, Fig. 3, actuated by the steam or other fluid pressure in ram cylinder 4 and bypassed therefrom through one of at least two outlets 20, closable by plugs 21, positioned lengthwise of the cylinder 4 and uncovered during the stroke of the ram 8. In another embodiment (not shown), the piston valve is disposed horizontally and is reciprocable between nylon buffers. Oil from a chamber 32 is drawn into the cylinder 4 through a passage 32a and forms a lubricating emulsion with the steam. The jaws 11, Fig. 7, are wedgeshaped and are held by springs 43 against faces 11c of plates 11b bolted together at 42 and forming a grip 11a for one looped end of the grommet 12, the other end of which is looped round the saddle 7. When the saddle is forced upwards, the grommet pulls the grip 11a upwards causing the jaws 11 to grip the pile and draw it upwards.
Patent GB-849548-A (GB)
Title: An improved fibre cleaner
IPC: D01G9/04
Filed: 1957-07-24
Abstract: 849,548. Opening and cleaning fibres. DODD INVESTMENTS Ltd., YOUNG, R.C., and RUSCA, R.A. July 24, 1957 [Aug. 16, 1956], No. 23475/57. Class 120(1). A fibre cleaner comprises a toothed processing cylinder 20, Fig. 1, a cylinder 21 having rearwardly-inclined teeth and lower peripheral speed than cylinder 20 for combing and loosening fibres containing trash on cylinder 20, a doffing cylinder 22 having forwardly-inclined teeth and a lower peripheral speed than cylinder 20 for transferring to cylinder 20 fibres clinging to cylinder 21, the cylinders rotating in the directions shown, and grid bars 25 adjacent cylinder 20 through which trash is ejected. The embodiment shown in Fig. 1, is a cleaner of the type described in U.S.A. Specification 2,365,793, having a wall-like series of opener cylinders 10, 11, each opener cylinder being doffed by a processing cylinder 20. Trash ejected through grid bars 25 is removed by a conveyer screw 27. The cleaned fibres are removed from cylinder 20 by a doffing cylinder 28 and conveyed by air through a manifold 29. In a modification, Fig. 2, a first processing cylinder 50 is followed by a second processing cylinder 60 similarly provided with combing and doffing cylinders 61, 62 and grid bars 65 so arranged that bars 65 are presented with the surface of the layer of fibres opposite to that presented to the grid bars of cylinder 50.
Patent GB-1198055-A (GB)
Title: Improvements in or relating to Signal Recording and/or Playback Apparatus
Inventor: AHY JAHANGIR MADJIDI
IPC: G11B15/18
Filed: 1966-08-19
Abstract: 1,198,055. Feeding record tapes. J. M. AHY. 21 Aug., 1967 [19 Aug., 1966; 19 May, 1967], Nos. 37359/66 and 23484/67. Heading G5R. In a signal recording and/or playback apparatus for a wide-band record in the form of an endless loop 15 which is inserted into the apparatus wound up on a spool 1 in a double spiral form, and during use is stored in a storage compartment 23 in random fashion, a capstan 16 is provided for advancing the band past a transducer head 29 and drive rollers 21, 22 are positioned adjacent an opening in compartment 23. A feeder member 17 carries counter rollers 19, 20 and is movable from an out of use position, Fig. 1 (not shown) to a position in which counter rollers 19, 20 grip the band 15 between them and the drive rollers 21, 22. As shown in Fig. 2, rollers 21, 22 may be driven in opposite directions to feed band 15 into random storage compartment 23 or, as shown in Fig. 3, roller 21 is rotated in the same direction as roller 22 in order to withdraw the band from compartment 23 to circulate it past transducer head 29. The drive of rollers 21, 22 is interrupted by opening contacts 28 on an arm 26. When band 15 becomes tensioned as shown by dotted lines in Fig. 2, or when feed member 17 is swung to an inoperative position, a control roller 24 is displaced and arm 26 is moved to open contacts 28. An isolating band 30 of non-magnetic material is located between adjacent turns of the double wound spiral of band 15 when wound on spool 1. In a modification the drive roller 21 need not be driven but can turn freely if capstan 16 is driven. Alternatively, if roller 21 is driven capstan 16 need not be driven.
Patent GB-333378-A (GB)
Title: Improvements relating to means for delivering liquid at determinable rates of flow
IPC: G05D11/03
Filed: 1929-07-31
Abstract: 333,378. Green, E. T., and Warnock, S. July 31, 1929. Treatment by damping.-Apparatus for delivering liquid at determinable rates of flow, particularly for adding water to whole or broken grain, comprises a siphon 6, Figs. 1 and 2, adjustable in a tank 1 and carrying a scale 9 co-operating with a pointer 13 slidably mounted on a gauge 12 for indicating the level of the liquid. The siphon may be provided with interchangeable nozzles or bushes and with a glass tube 11 at its crown with tap 11<b>, and the tank is provided with a ball inlet valve and strainer 5.
Patent GB-1162189-A (GB)
Title: Removal of Offensive Constituents from Exhaust Gases
Inventor: RYASON PORTER RAYMOND
IPC: B01D53/86
Filed: 1967-05-19
Abstract: 1,162,189. Purifying flue gases; sulphur; nitrogen; carbon oxysulphide. CHEVRON RESEARCH CO. 19 May, 1967 [20 May, 1966], No. 23501/67. Heading C1A. Oxides of sulphur and nitrogen are removed from flue gases by reduction to sulphur and nitrogen respectively with carbon monoxide using a catalyst comprising copper, silver, nickel, molybdenum, palladium or cobalt on alumina heated to above 750‹ F. (400‹ C.) and a contact time of at least 0.1 second. The carbon monoxide, is used in quantities of at least 0.75 of the stoichiometric requirement according to the equations and may be derived from the original combustion process and form part of the flue gas, its concentration being governed by controlling the oxygen supply. Excess carbon monoxide gives rise to the formation of carbon oxysulphide. The catalyst may be prepared by adsorption of metal ions from an aqueous solution with or without heating and may be pre-treated by heating to 900‹ to 1200‹F. in a hydrogen environment for ¢ to 2 hours.
Patent GB-646668-A (GB)
Title: Improvements in or connected with dolls, puppets and the like
IPC: A63H3/28
Filed: 1948-09-09
Abstract: 646,668. Toys. WILLIAMS & STEER MANUFACTURING GO., Ltd., and TIETZ, J. Sept. 9, 1948, No. 23707. Drawings to Specification. [Class 132 (iii)] A doll has a loudspeaker fitted in its head, the opening of the loudspeaker being covered by a wire mesh and hair. Leads are taken from the speaker to terminals in the back of the doll to enable it to be connected to a wireless.
Patent GB-650880-A (GB)
Title: Case for microfilms
Inventor: LIBER SOSTHENE HENRI
IPC: G03B21/64
Filed: 1947-08-27
Abstract: 650,880. Cases for microfilms. SOC. CIVILE D'ETUDES & INVENTIONS LIBER, S.E.I.L.I.B. Aug. 27, 1947, No. 23744. [Class 18] [Also in Group XV] A case for housing micro-  film 5 is made from a sheet of transparent material folded upon itself and secured together as at 2. A thin strip of paper 7 is inserted between the overlapping edges of the sheet and serves as a background for identification markings on the outside of the case. In an alternative arrangement, one edge 9a of the sheet is doubly folded and the two edges are secured together by stitching 11. A pocket is then formed between: stitching 11 and one side 8 of the case for the microfilm, and between the stitching and the other side 10a of the case for the strip of paper 12 which may carry identification markings. The ends of the case may be closed in any suitable manner.
Patent GB-759574-A (GB)
Title: Electric high tension air blast circuit breaker
IPC: H01H33/14
Filed: 1954-08-16
Abstract: 759,574. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 16 1954 [Aug. 31, 1953], No. 23748/54. Class 38(5) In a high-tension air-blast circuitbreaker comprising a plurality of containers 6, each housing a breaking gap, which gaps are series connected, means maintaining a supply of compressed air in each container for arc-extinction and separate pipes 5 for the supply of operating air to each container, the containers 6 are arranged in a circle at the centre of which is a common valve 9 controlling the supply of air to the pipes 5 which extend radially from the valve to their respective containers. Each container 6 is provided with two lead-in insulators 11, each of which supports a stationary contact, a movable bridging contact being mounted in the container. The containers are connected together, via the insulators 11, by pipes 10 through which and one of the pipes 5 compressed air for arc-extinction is supplied. The pipes 10 may be of copper so that they serve additionally for the series connection of the breaking gaps. Insulators 8 between the containers may house condensers for control of voltage distribution, and the containers 6 may also house additional breaking contacts for parallel resistances arranged in insulators 7. Instead of being mounted in one plane, the pipes 5 may be arranged in the manner of spokes in a bicycle wheel.
Patent GB-1496198-A (GB)
Title: Water-based paints
IPC: C09D201/08
Filed: 1975-06-03
Abstract: 1496198 Aqueous paint compositions FORD MOTOR CO Ltd 3 June 1975 [3 June 1974 (3)] 23965/75 Heading C3P An aqueous paint comprises, as film forming ingredients, a carboxy functional polymer component and an amino resin cross-linking agent therefor disposed in an aqueous solution of a water-soluble amine in which the carboxy functional polymer component comprises an acrylic polymer component comprising (a) from 5 to 50 parts by weight of a solution polymer which is a carboxy functional polymer of acrylic monomers having an average molecular weight of from 3000-20,000 and a glass transition temperature of from - 15 to 50 C., which solution polymer is at least partially neutralized with water-soluble amine and is soluble in the aqueous solution, and (b) from 95 to 50 parts by weight of an emulsion polymer which is a carboxy and/or hydroxy functional copolymer of acrylic monomers having an average molecular weight of from 3000 to 20,000 and a glass transition temperature of from - 15 to 50 C., which emulsion copolymer is substantially insoluble in the aqueous solution; and the amino cross-linking agent is a melamine-formaldehyde or urea-formaldehyde resin present in an amount of from 15-35% by weight based on the weight of the acrylic polymer component. Four general methods of preparation are described involving both solution and emulsion polymerization techniques. Acrylic and methacrylic acid esters and their homologues may form both the soluble and insoluble components of the paint compositions according to the invention. Catalysts, e.g. p-toluene sulphonic acid and solvents, e.g. alcohols and ethers may also be incorporated. Many examples are given which describe starting materials, reaction conditions and physical properties of the products.