baber/WOPTO huggingface dataset:
Patent GB-860715-A (GB)
Title: Improvements in or relating to gas burner control valves
Inventor: ESKIN SAMUEL GEORGE
IPC: G05D23/12
Filed: 1957-07-22
Abstract: 860,715. Thermally-actuated valves. DOLE VALVE CO. July 22, 1957, No. 23170/57. Class 135. In a gas burner control in which a thermal element 85 individually operates in two temperature ranges two valves 46, 47, gas flows from the inlet 23 to a by-pass 35, past valve 46 to an auxiliary burner outlet 36 and past valves 46 and 47 to a main burner outlet 37. The valves are respectively spring-loaded against abutments 69, 71 on connected stems 66, 70 moved through an ambient temperature compensating bimetal lever 81 by a thermal element 85 responsive to temperature in an oven. The valve seats are formed by two rings 44, 45 screwing into the chamber 12 and adjustably interconnected at 2 by a tongue and slot. On turning knob 25 and cock 19, gas passes from the inlet to a cock groove 21 and port 22, and then to the by-pass 35. When the pointer 90 is further turned into a low temperature range, yoke 54 screws the seats to the right to keep valve 47 closed but open valve 46. The thermal element closes valve 46 at a low temperature as the stem 70 moves through valve 47. On further screwing in the seats by turning the pointer into a high temperature range, valve 47 stays abutting its stem at 71 so that valve 47 is opened as well as valve 46 and the thermal element closes valve 47 at the higher temperature produced by both burners.
Patent GB-873212-A (GB)
Title: Process for the manufacture of 1:1:1-trifluoro-2-chloro-2-bromethane
IPC: C07C17/358
Filed: 1958-07-18
Abstract: 1:1:1-Trifluoro-2-chloro-2-bromoethane is obtained by gradually reacting 1:1:2-trifluoro-1-bromo-2-chloroethane at its boiling point with 0.1-25% mol of anhydrous aluminium chloride. Specification 767,779 is referred to.
Patent GB-1171658-A (GB)
Title: Steam atomizing burners
Inventor: GJERDE ERWIN G
IPC: F23D11/10
Filed: 1967-05-18
Abstract: 1,171,658. Burners. HYDRO COMBUSTION CORP. 18 May, 1967, No. 23234/67. Heading F4T. A burner nozzle employing steam as the atomizing fluid has a body B formed with a bore 20, counterbores 22, 24 and an intermediate counterbore 26, an inner barrel 28 being welded at one end to the body B and an outer barrel 30 fitting into a groove 32 to align with counterbore 26. The body B is also secured to a nose N having air apertures 16 and to a discharge tube 36. In operation, pressurized combustible gas is forced through the neck part 14 of nose N, pressurized oil is forced through an inlet 12 and steam is forced through an inlet 10. Gas and air entering apertures 16 are mixed in the barrel 28 and the mixture passes on to mix with steam entering through counterbores 22, 26 and oil entering through counterbore 24 and oil inlet 38 mixes with the air, steam, gas mixture. The cross-sectional area of apertures 16 is preferably four times the internal crosssectional area of the neck 14.
Patent GB-500705-A (GB)
Title: Improved method of manufacturing electric disharge tubes
IPC: H01J19/42
Filed: 1938-08-06
Abstract: 500,705. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 6, 1938, No. 23311. Convention date, Aug. 9, 1937. [Class 39 (i)] In manufacturing electric discharge tubes with two or more grids having turns one behind another as viewed perpendicularly to the cathode to reduce current flow to the grids remote from the cathode, flexible portions in grid supports at least as many as the number of grids are bent to position the grids after they have been mounted on the pinch. As shown, the control and 'screening grids each have two supports 2, 3 and 4, 5 located by a mica plate 8 and sealed in the pinch 1, and flexible parts 6 approximately parallel to the pinch allow adjustment of one grid at one side of the cathode 7 and the other grid at the other side.
Patent GB-502902-A (GB)
Title: Improved device for driving boards, planks or the like into the ground
IPC: E02D7/04
Filed: 1937-08-26
Abstract: 502,902. Driving piles. SIMONS, J. E; R., BRICE, E. L., and BRICE, A. Aug. 26, 1937, No. 23422. [Class 68 (ii)] A device for driving boards, planks, or the like into the ground consisting of a weighted tube open at its lower end and guided on the board as described in Specification 485,217 is provided with side openings to permit sideways entry on or removal from a plank to be driven, guide covers for the openings being preferably provided. A metal tube 1 with sides cut away at A is closed at the top by a weight 2 and is provided with handles 3, running lengthwise of the tube, by which it may be raised and lowered. The two sides of the tube may have filling pieces to assist in guiding it on the plank. The cut-away sides of the tube may be fitted with sheet-metal covers B having lugs which engage arms F at their lower ends, the upper ends of the covers being bent over and secured by quicklydetachable spring-controlled nuts P.
Patent GB-791319-A (GB)
Title: Process for the production of peptides
Filed: 1955-08-15
Abstract: Peptides of the formula R-(CH2)n-CH(NH2) -CO-NH-CH(COOH)-(CH2)n1-R1, where R and R1 are hydrogen, alkyl, aryl or heterocyclic (same or different) and n and n1 are 0-8 (same or different) are prepared by reacting an aminoacid ester with the mixed anhydride of a carbonic acid monoester and a tritylaminoacid, hydrolysing the ester group before or after removing the trityl group from the N-trityl peptide with acetic acid, separating the triphenylcarbinol and purifying the desired peptide by dissolving it in an organic solvent.  The invention also includes per se N-trityl-glycyl-DL-tryptophan, N - trityl - DL - a  - alanyl-DL-tryptophan, N - trityl - DL - a  - alanyl - glycine and N - trityl - DL - a  - alanyl - DL - serine, and the methyl esters of the first two and the ethyl esters of the last two.  The mixed anhydrides are prepared by reacting an aminoacid ester with trityl chloride, hydrolysing the ester group and reacting with an alkyl chloroformate; the free aminoacid may be used instead of its ester.  Examples show the preparation of (1) N-trityl-glycine ethylcarbonic anhydride, N - trityl - glycyl - glycine ethyl ester and free acid, and glycyl-glycine; (2) N-trityl-glycyl-tryptophan methyl ester and free acid, and glycyl-DL-tryptophan; (3) N-trityl-DL-alanine ethylcarbonic anhydride, N-trityl-DL-alanyl-glycine ethyl ester and free acid, and DL - alanyl - glycine; (4) N - trityl - DL - alanyl-serine ethyl ester and free acid, and DL-alanyl - DL - serine; (5) N-trityl-DL-alanyl-tryptophan methyl ester and free acid, and DL-alanyl-DL-tryptophan.  Peptides may similarly be prepared from phenylalanine, tyrosine, 3:5-di-iodotyrosine, cysteine, leucine, norvaline, arginine and histidine.  The preparation is described of N - trityl - glycine, N - trityl - DL-alanine and their ethyl esters and triethylamine salts.
Patent GB-1345251-A (GB)
Title: Automatic film loading projector
IPC: G03B21/44
Filed: 1971-04-19
Abstract: 1345251 Cine film threading HOKUSHIN ELECTRIC WORKS Ltd 19 April 1971 [6 March 1970] 23480/71 Heading G2E An automatic film threader in a projection 1 for receiving double spool cassettes 101 has an arm 6 rotating about a pivot 5 located at the centre of a circular film path 9 defined by various parts of the projection 1. At the end 7 of the arm 6 is a device, details in Fig. 2 (not shown), for gripping the leading end of the film 4 so that as the arm 6 rotates anti-clockwise from the position shown it takes up the film end from device 104, which holds the film end ready in the cassette 101, and threads it as follows. The film is passed over roller 10, between driven sprocket 11 and guide 12, which is pivoted to the position 12' as the arm 6 passes and then springs back, between guide roller 142 (pivoting about 141) and apertured plate 13, the front part of the picture gate 15 being retracted to 15' during the threading operation. Rollers 17, 21, 22 are pivoted clear of the path 9 and the film is threaded between a second sprocket 23 and guide 24 (like 11, 12) and across the spool 103 by virtue of its split spool face. The arm 6 moves at a slightly slower circumferential speed than the film feed rate and hence loops 4a, 4b form during the threading operation. However loop 4b can be increased in size by momentarily stopping one of the sprockets 11, 23 after the film 4 has been threaded therethrough. The loop 4b is diminished in size by the pivoting back of rollers 17, 21, 22 to the position shown so that the film 4 passes the sound reproduction device 19, 20.
Patent GB-868841-A (GB)
Title: Improvements in or relating to the recovery of caesium values from caesium phosphotungstate
Inventor: HEALY THOMAS VICTOR
IPC: G21G4/04
Filed: 1956-07-30
Abstract: A solution containing caesium free from phosphate, tungstate and phosphotungstate ions is produced by adding to caesium phosphotungstate a solution containing a hydroxide of an alkaline earth metal, whereby a precipitate containing the phosphate and tungstate of the alkaline earth metal is formed; the solution added contains alkaline earth metal in excess of the chemical equivalent of the phosphate and tungstate in the caesium phosphotungstate. Radioactive caesium phosphotungstate obtained from nuclear fission products as described in Specification 736,429 may be treated directly or first dissolved in ammonium hydroxide solution.  After adding barium hydroxide solution, the precipitate is filtered off and the solution containing excess barium is neutralised with dilute sulphuric acid, precipitated barium sulphate is removed, and the solution of caesium sulphate evaporated to dryness; alternatively the solution containing excess barium is treated with ammonium carbonate solution to precipitate barium carbonate, which is removed leaving a solution of caesium carbonate which is treated with sulphuric acid and evaporated to dryness.  If hydrochloric acid is used in place of sulphuric acid, caesium chloride is obtained.  According to the second Provisional Specification, excess alkaline earth metal may be precipitated as carbonate by passing carbon dioxide into the solution.  Specification 846,281 also is referred to.
Patent GB-813931-A (GB)
Title: Herbicidal or plant growth regulant compositions
Inventor: PFEIFFER RUDOLF KOLOMAN
IPC: A01N25/30
Filed: 1956-07-31
Abstract: A herbicidal or plant growth regulant composition, preferably containing a hormone type weed killer, contains a small percentage preferably 0,5 to 5 per cent of one or more polyalkylene glycol compounds preferably having a molecular weight in the range of 800-2000.  The glycol compound may be a polypropylene glycol or a mixed polyethylene glycol-polypropylene glycol e.g. comprising a copolymer of ethylene oxide and propylene oxide having a central polypropylene glycol block flanked by two polyethylene glycol residues.ALSO:A herbicidal or plant growth regulant composition, preferably containing a hormone-type weed-killer, contains a small percentage, preferably 0.5 to 5 per cent, of one or more polyalkylene glycol compounds preferably having a molecular weight in the range of 800-2000.  The glycol compound may be a polypropylene glycol or a mixed polyethylene glycol-polypropylene glycol, e.g. comprising a copolymer of ethylene oxide and propylene oxide having a central polypropylene glycol block flanked by two polyethylene glycol residues.
Patent GB-923284-A (GB)
Title: Improvements in or relating to cartons
Inventor: HORRY WILLIAM THOMPSON
IPC: B65D5/10
Filed: 1960-07-06
Abstract: 923,284. Cartons. JOHN WADDINGTON Ltd. Oct. 5, 1961 [July 6, 1960], No. 23557/60. Class 18. A carton formed from a single blank, Fig. 1 comprises ends 1, 3, op posing closed sides 2, 4 and two partly open sides having angularly arranged flaps 1<SP>A</SP>, 1<SP>B</SP>, 2<SP>A</SP>, 2<SP>B</SP>, 3<SP>A</SP>, 3<SP>B</SP>, 4A and 4<SP>B</SP>. In the erected carton tongues 8 engage with slot 6 to hold the flaps in position said flaps providing platforms inside the carton to support and display the article. The edges of the flaps are contoured to the shape of the article. The closed sides formed by panels 2, 4 may have windows or fretted patterns therein.
Patent GB-995759-A (GB)
Title: Split brushes
IPC: H01R39/24
Filed: 1962-06-19
Abstract: 995,759. Brushes for commutators or slip rings. CARBONE (GREAT BRITAIN) Ltd. June 19, 1962 [Sept. 1, 1961], No. 23564/62. Heading H2A. A split brush for an electric commutator or slip ring comprises two or more currentcollecting components 1, 2 capable of independent movement and mechanically linked together by attaching an end of each component to the end of an arm of a single or multiple arch elastic member 3 which is produced without stressing in any way. The member 3 may be a natural or synthetic rubber or plastic and is attached by an adhesive. The joining ends may be V-shaped to an included angle of between 90 and 180 degrees, and the brush may comprise four components, Fig. 8a.
Patent GB-154392-A (GB)
Title: An improved method of constructing a wall or building
IPC: E04B1/64
Filed: 1919-09-26
Abstract: 154,392. Smith, M. M. Sept. 26, 1919 Double walls; wall ties.-A damp-proof concrete wall comprises flexible waterproof sheeting B<1>, Fig. 1, which is suspended in the mould C in horizontal or vertical strips, the edges of which overlap, and metal ties D placed to bridge the sheets without perforating them. Corner and intermediate piers may consist of two thicknesses of bricks laid to form toothed edges and with damp-proof material between them and projecting as shown. Or the piers may consist of precast inner and outer posts E, Fig. 3, tied together by straps F and with grooves E<1> to key with the concrete wall. The bases of the posts may be em. bedded in concrete cast in cylindrical holes in the ground, and the first course in the wall may be formed as an arch J either in situ or precast.
Patent GB-1043245-A (GB)
Title: Improvements in and relating to the separation of mixtures of textile fibres
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: D01G11/04
Filed: 1962-06-20
Abstract: 1,043,245. Separating and sorting fibres; fibre preparation machines. RECLAMATION TRADES  RESEARCH ORGANISATION Ltd. June 19,1963 [June 20,1962; Aug.30, RECLAMATION TRADES Headings D1F and D1N. [Also in Division B2]  Wool and non-wool fibres are dispersed in an air stream and are charged to effect separation into the wool and non-wool components in an electrostatic field. As shown, the fibre mixture is fed from a conveyer 1, on which it is spread, to be gathered between the conveyer and an endless belt 2 whereby it is delivered into a cylindrical chamber containing a rotor 8 with alternate combing blades 9 and beaters 10. The mixture is squeezed into the chamber between spring pressed rollers 4 and 5 and is dispersed out at the bottom into anan air channel 12, 13. Since the combing and beating of the fibres will give them charges, the air channel may deliver them direct to the space between an earthed endless band 27 and a high voltage endless band 26 which may be a conductor connected to a voltage source or may be a non-conductor given static from a roller 31. The band 27 conveys fibre of one charge or discharged fibre to a suction collector 30 while band 26 conveys oppositely charged fibres to a similar collector. Uncharged or discharged material may be blown clear through between the bands. The fibres may, however, be charged as shown by the use of a discharge electrode 25 in an insulator 23 with electrodes 24. In this event wool will lose its charge rapidly and will enter the separating field without charge while synthetic fibre will hold its charge and be separated out in the field. An antistatic agent may be sprayed on to the fibre mixture in an aqueous solution or in admixture with oil. Oil alone may be sprayed on to the mixture.
Patent GB-367302-A (GB)
Title: Improvements in tea rolling machines
IPC: A23F3/12
Filed: 1931-08-24
Abstract: 367,302. Tea-rolling machines. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. Aug. 24, 1931, No. 23820. Convention date, July 15, 1931. [Class 129.] Tea-rolling machines are provided with a disc indicator to show when pressure is to be applied to or released from the leaf. A spindle 6 is fitted to one of the cranks 4 which rotate the table 1. This spindle rotates a disc 15 through suitable gears. The disc is divided into alternate black and white sectors, Fig. 3. When a black sector is passing the fixed pointer 16, pressure is applied to the presser 5. When a white sector is passing the pointer, the pressure is released to allow the leaf to cool.
Patent GB-1180867-A (GB)
Title: Improvements in and relating to Control Devices for Gas Appliances.
Inventor: ALVAREZ ANTONIO DEL ARCO
IPC: F23N5/02
Filed: 1968-05-20
Abstract: 1,180,867. Valves. A. DEL ARCO ALVAREZ. 20 May, 1968 [24 May, 1967], No. 23822/68. Heading F2V. [Also in Division F4] A valve 8 controlling the supply of gas to a burner 7 is actuated by a thermosensitive element 2 connected between the valve and the housing 10 when a pilot flame 1 is deformed to be directed on to the housing by a utensil placed on the burner.
Patent GB-979630-A (GB)
Title: Improvements in and relating to thermoplastic films
IPC: B29C48/08
Filed: 1962-06-21
Abstract: A resin composition is made by intimately admixing at least two mutually incompatible synthetic organic resins, each of which is normally in an amorphous rubbery state, at a temperature above its second order transition temperature, the said resins being orientable at a common temperature. One of the resins may be present in an amount of 5 to 95% based on the total weight of the resins. Where the mixture consists of two resins, one may be present in an amount of 5 to 50% based on the total weight. Specified resins include polystyrene, poly (a -methylstyrene), polyvinyl chloride, polymethyl methacryoate, polyacrylonitrile, polyvinyl acetate, polyhydroxyethers, polyoxymethylene, polybutadiene, polydimethylbutadiene, polyvinylformal, polyvinyl acetal, vinyl chloride-acrylonitrile copolymers, vinyl chloride-vinyl acetate copolymers, polyvinylidene chloride, polyethyl methacrylate, poly-n-propyl methacrylate, polyethylene terephthalate, polycarbonates, e.g. those made by reaction of a bisphenol with phosgene, poly-a -vinyl naphthalene, poly a -vinyl pyridine, polymethyl-acrylate, vinylidene chloride-vinyl acetate copolymers, polyvinylbutyral and polydichlorostyrene. Specified mixtures include those of atactic polystyrene with polymethyl methacrylate, polyhydroxyethers with polystyrene or polymethyl methacrylate, polyhydroxy ethers with styrene-acrylonitrile, polymethyl methacrylate with polystyrene together with Bisphenol-A-polyhydroxy polystyrene with vinyl chloride-vinyl acetate copolymer, Bisphenol-A-polyhydroxy ether with vinyl chloride-vinyl acetate copolymer, Bisphenol-A-polyhydroxy ether with styrene-acrylonitrile copolymer, polystyrene with polyethylene terephthalate, Bisphenol-A-polyhydroxyether with polyethylene terephthalate and polystyrene with one of a number of specified synthetic rubbers, e.g. Butyl Rubber (GR-I). Mixing of the resins is effected by heating accompanied by agitation, by dissolving in a mutual solvent and evaporating the solvent or passing the solution into a non-solvent precipitating bath, by mixing on heated differential rolls, or by dry mixing finely ground particles of the individual resins. U.S.A. Specifications 2,074,285, 2,412,187, 2,452,080, 2,571,355, 2,602,075 and 2,618,012 are referred
Patent GB-894673-A (GB)
Title: Improvements in electric discharge tubes for high voltages
IPC: H01J19/44
Filed: 1958-07-24
Abstract: 894,673. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 24, 1958 [July 27, 1957], No. 23877/58. Class 39 (1). An electric discharge tube has an anode 8, a thermionic cathode 7 and a heater (not shown) for the cathode, a mica member 16 holding said anode and cathode electrodes in spaced relationship and providing an insulating path between the electrodes, two conductive members 9 positioned on the mica member in said path, and two insulated conductors 11 and 12 disposed between the heater and the cathode 7, one insulated conductor being connected to one conductive member and the other insulated conductor being connected to the other conductive member. The members 9 acquire a potential intermediate those of the heater and cathode by induction in the conductors 11 and 12, and enable the tube to withstand very high potentials between the anode and cathode without having to increase disproportionately the lengths of the insulation paths across the mica member 16. In the tube shown there are two mica members 16, the conductive members 9 on the lower mica being connected to those on the upper mica by rods 13, one of which supports a getter holder 15. The members 9 may be plates arranged as shown at right angles to the mica surface or may be metal layers arranged in narrow lines on the surface. Each mica 16 has two vents 17 to increase the lengths of the insulating paths. The conductors 11 and 12 comprise metal core wires coated with insulating material such as aluminium oxide and wound helically in opposite directions. The tube may be connected in a diode limiter arrangement for a cathode-ray tube deflection system (Fig. 1, not shown).
Patent GB-681641-A (GB)
Title: An improved thermoplastic composition
IPC: D06N1/00
Filed: 1950-09-29
Abstract: A drying oil pitch and a viscous petroleum polymer of molecular weight between 200 and 600 and consisting principally of polymerised highly unsaturated olefinic hydrocarbons, having an iodine number of between 80 and 200 and being substantially non-acid and non-saponifiable, are heated together at not above 300 DEG  F. to give a blended product, free from vulcanizing agents. The amount of polymer is between 10 and 50 per cent.  A filler e.g. asbestos, silica, talc and whiting may be present in an amount between 1 and 3 times that of the blend.  Driers and colouring agents may also be present, a long list of the latter being given.  Pitches specified are those from cottonseed, linseed or tall oil.  Plasticisers e.g. dehydrated castor oil, may also be included.  The blend is used as a coating.
Patent GB-910049-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: DRAKE CYRIL FRANCIS
IPC: H01L27/00
Filed: 1960-07-08
Abstract: 910,049. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. July 7, 1961 [July 8, 1960], No. 23952/60. Class 37. A semi-conductor device has two regions 8, 9 of one type (P) separated by a region 7 of the other type (N) at least one of the junctions being of the tunnel diode type. Fig. 1 illustrates the current voltage characteristic of a tunnel diode type junction and in one embodiment both junctions are of this type, the junction 7-8 being biased to the portion 3-4 of the curve and the junction 7-9 to the portion 2-3. The device then behaves as a transistor having portions 7, 8 and 9 as base emitter and collector respectively. Alternatively both junctions may be operated as two tunnel diodes in series. The device may be constructed of germanium, silicon, or of gallium, or indium-arsenide which must be cooled.
Patent GB-195012-A (GB)
Title: Improvements in and relating to pneumatic despatch apparatus
IPC: B65G51/30
Filed: 1922-09-04
Abstract: 195,012. Herring, S. J., Brown, D. M., and Lamson Pneumatic Tube Co., Ltd. Sept. 4, 1922. Pneumatic dispatch apparatus. - In pneumatic dispatch apparatus of the type in which, for noiseless discharge. the discharge tube is fitted with two valves, the upper one for cutting off the suction tube 4, and the lower one permitting the carrier to be discharged. The upper valve 9 is secured to a frame 14 attached to two pivoted levers 15 which hava weights 17 on their free ends projecting outside the terminal chamber 2. The discharge valve 5 is hinged and normally kept closed by a weight 13.