baber/WOPTO huggingface dataset:
Patent GB-767855-A (GB)
Title: Nitrogen-bearing ferrochromium
IPC: C21D3/04
Filed: 1954-09-15
Abstract: A method of producing low carbon nitrogen bearing ferrochromium comprises heating a compacted, uniformly porous aggregate produced by heating ferrochromium pellets containing 50-90 per cent Cr, 1-6 per cent Si, and more than 0.25 per cent C, the balance being iron, with an oxidizing agent and a binder under sub-atmospheric pressure and a temperature below the fusion point of any part of the pellets until the carbon content has been reduced to not more than 0.25 per cent, and then heating to 900-1400 DEG C. in the presence of nitrogen until the nitrogen-carbon ratio is at least 20/1.  The nitrogen content may be between 0.5 and 7.0 per cent in an alloy containing 50-90 per cent Cr, 1-6 per cent Si, not more than 0.25 per cent C, the balance being iron.  The decarburization may be carried out at a temperature below 1400 DEG C. under subatmospheric pressure, the reaction being considered complete when the pressure falls below 150 m.m. of mercury.  Nitrogen is then introduced in sufficient quantity to give the required nitrogen content in the ferro-chromium.  The alloy is stated to be suitable for addition to stainless steel alloys in which nitrogen and a very low carbon content is required.
Patent GB-1352973-A (GB)
Title: Light sensitive colour photographic silver halide material
IPC: G03C7/34
Filed: 1972-06-08
Abstract: 1352973 1,3-Dihydroxy benzene derivatives AGFA-GEVAERT AG 8 June 1972 [12 June 1971] 26744/72 Heading C2C [Also in Division G2] 2 - Acetamino - 1,3 - dihydroxybenzene is prepared by catalytically hydrogenating 2-nitro- 1,3-dihydroxybenzene in methanol at 50‹ C. and 50 excess atmospheres, adding acetic acid anhydride, filtering and acidifying. 2-Acetamino- 1,3-didecyloxybenzene is prepared by refluxing 2-acetamino-1,3-dihydroxybenzene suspended in decylbromide in n-propanol and adding at the same time sodium methylate solution and then precipitating by stirring on ice. 2,6-Didecyloxyaniline is prepared by refluxing 2-acetamino-1,3- di-decyloxybenzene in n-propanol and concentrated hydrochloric acid and precipitating by stirring on ice/concentrated NaOH solution. 1 - Hydroxy - 4 - chloro - N - (2,6 - didecyloxyphenyl) naphth - 2 - amide is prepared by heating 2,6 - didecyloxyaniline and 1 - hydroxy - 4- chloronaphthoic acid phenyl ester to 180‹ C. under vacuum, stirring into methanol and cooling.
Patent GB-1098408-A (GB)
Title: Extrusion of resins
Inventor: BAXTER SAMUEL
IPC: B29C48/32
Filed: 1965-06-24
Abstract: 1,098,408. Extruding foamed thermoplastic resins. MONSANTO CHEMICALS Ltd. May 11, 1966 [June 24, 1965], No. 26765/65. Heading B5A. The die described with reference to Fig. 5 of Specification 1,034,120 is modified by the provision of passages 7 which run the length of the die and have outlets substantially centrally disposed of meshes 8 formed by slits 3-6. Foamable synthetic resin is extruded through passages 7 to subsequently expand and coalesce with similar resin extruded through slits 3-6, thereby forming a solid sheet or board. Some meshes 8 may have more than one passage outlet and others may have none. Slits 3-6 may form other than rectangular arrays with square meshes 8, e.g. a hexagon with triangular meshes, in each case the outlets of passages 7 preferably having a cross-sectional shape corresponding to their respective meshes. Passages 7 may have an effective diameter between 0À02-0À1 inch, slits 3-6 may have a width between 0À01-0À25 inch and a land between 0À1-0À5 inch and channels 2, which feed the slits, may have an effective diameter 1À3-10 times the width of the slits. The peripheral slits may have lands up to twice as long as those of the remaining slits. A board produced by the die may have a thickness between ¢ and 4 inches, a width which may exceed 60 inches and a density within the range 0À9-2 1b/cu. foot. Many thermoplastic resins are mentioned, those particularly preferred including polystyrene and polyethylene and the former may be modified with natural or synthetic rubber. Suitable blowing and nucleating agents are mentioned and two examples are given. The extrudate may be rendered smooth by the use of belts, rollers or a water cooled shaping box.
Patent GB-792178-A (GB)
Title: Improvements in or relating to beam milling machines
IPC: B23Q1/03
Filed: 1955-09-20
Abstract: 792,178. Milling. BLACKBURN & GENERAL AIRCRAFT, Ltd., WALKER, S., BANCROFT, T., and DUCKER, G. B. Sept. 20, 1955, No. 26810/55. Class 83 (3). A beam milling-machine comprises a table fabricated of mild steel longitudinal and transverse-members 1-6, 10 with aluminium bars 11 fixed above the transverse-members. The surface of the bed may thus be machined by the cutter of the machine.
Patent GB-740964-A (GB)
Title: Improvements in or relating to liquid delivery systems
Inventor: ADAMS KENNETH BEATSON
IPC: F16K21/16
Filed: 1951-11-16
Abstract: 740,964. Dispensing liquids. WAYNE TANK & PUMP CO., Ltd. Nov. 17, 1952 [Nov. 16, 1951], No. 26902/51. Class 116 [Also in Group XXIX] In a liquid delivery system having a main pipe 1 containing a metering device 2 pre-set to deliver a predetermined quantity of liquid and leading to a plurality of delivery branches 3 each containing a delivery valve 4, each valve is operable through an external force applied to a movable part thereof, e.g. when the valve is unlocked, is maintained open by the pressure of the flowing liquid, and closes automatically when the pressure falls below a  certain value, e.g. when the liquid flow ceases. On raising a lever 26, a reduced portion 27 of a locking member 24 allows balls 25 to move away from a shoulder 22 on the boss 19 of an annular member 15 which is then moved against a spring 20 downwards on a guide 12 away from a valve member 11 supported on the guide. When flow ceases, the spring reseats the member 15 on the valve 11. The valves are operated alternatively.
Patent GB-1273779-A (GB)
Title: Electro-optic light modulator
IPC: C09K19/60
Filed: 1969-05-28
Abstract: 1,273,779. Modulating light. RCA CORPORATION. 28 May, 1969 [3 Sept., 1968], No. 26952/69. Heading H4F. [Also in Division C2] A light valve comprises an acyloxybenzylidene anil nematic liquid crystal and means for applying an electric field thereto so that the light scattering and birefringent properties of the liquid crystal are altered due to the tendency of the liquid crystal domains to align preferred liquid crystal compositions for use in the valve are mixtures of p-n-alkoxy substituted (particularly butoxy to heptoxy) and p-n-acyloxy substituted (particularly acetyl to capryl, C 7 H 15 CO) benzylidene-p<SP>1</SP>-aminobenzonitriles, three such compositions being specifically described. The mixtures exhibit a depressed crystal-nematic transition temperature, e.g. 26‹ C. for one ternary mixture, they may be supercooled to below room temperature in the nematic state, and they are prepared by mixing the isotropic liquids, cooling to 0‹ C. to crystallize and then slowly heating the crystals until above the nematic transition temperature. A first embodiment of light valve may include means for polarizing the light reaching the liquid crystal, or crossed polarizers. The liquid crystal may contain ¢-5% of a pleochroic dye, e.g. indophenol, which co-operatively orientates with the crystal when an electric field is applied, resulting in a change from a coloured to a colourless or differently coloured state. Switching speeds of up to 15,000 cycles/sec. are possible e.g. for television displays. A second embodiment, Fig. 2 (not shown), for modulating a helium-neon laser beam, includes a polarizer, a light valve including 1% indophenol blue and a CdS photodetector. The polarizer is oriented so that transmission factors of 3 and 50% are obtained with no field, and a field of 400 kV/cm. respectively. Instead of varying an applied D.C. voltage to modulate the beam, it is possible to apply an A.C. voltage and vary the frequency thereof.
Patent GB-485829-A (GB)
Title: Improvements relating to internal combustion engines of the rotary cylinder type
IPC: F01L7/04
Filed: 1937-10-05
Abstract: 485,829. Four-stroke engines. SOC. ANON. LE MOTEUR SATURNE, CROUSSE, L., and GADOUX, E. Oct. 5, 1937, No. 26967. Convention date, Nov. 19, 1936. [Class 7 (ii)] In an engine in which the cylinder rotates about its axis, a distributer 61 rotating with the cylinder co-operates with inlet and exhaust ports in the casing 52, and a common valve 63 is operated by a rocker 71, rotating with the cylinder, and a pair of stationary cams 76, 77. Radial fins 57 on the cylinder cause cooling air to be drawn in at the head, and forced out through ports 59. The cylinder is rotated at half engine speed by a worm gear 70, and the sparking plug, which rotates with the cylinder, receives current from a fixed contact 79.
Patent GB-1273539-A (GB)
Title: Mine roof support assemblies
Inventor: RAWLINS GRAHAM CLENTON
IPC: E21D15/58
Filed: 1968-06-06
Abstract: 1,273,539. Setting devices for mine roof supports. G. C. RAWLINS. 30 May, 1969 [6 June, 1968], No. 27001/68. Heading E1E. A setting device for a mine roof support comprises a ram 30 having a forked bracket 32 .to seat on the stilt 33 and a cam 38 associated with a clamp 41 to secure same to the leg 40, the ram being energised by a pump 34, 35 forming an axial extension thereof. In a modification, see Fig. 1 (not shown), two supports forming part of a mine arch are each associated with a modified ram secured by a bracket to the stilt and having a forked portion engaging the underside of the leg, the two rams being connected in parallel to a common pump having a relief valve or a pressure gauge. (For Figure see next column)
Patent GB-1423444-A (GB)
Title: Preparation of 2,5-dimethylfuran-3-carboxylic amides
IPC: C07D307/68
Filed: 1973-06-06
Abstract: 1423444 2,5 - Dimethylfurancarboxylic amides BADISCHE ANILIN- & SODA-. FABRIK AG 6 June 1973 [7 June 1972] 27016/73 Heading C2C 2,5 - Dimethylfurancarboxylic amides of Formula I wherein R<SP>1</SP> and R<SP>2</SP> are identical or different and each denotes hydrogen, optionally substituted phenyl, optionally substituted cycloalkyl, cycloalkenyl, alkynyl, alkenyl, bicycloalkyl (e.g. norbornyl) or C 1 -C 4  alkyl, are obtained by reacting an α - acyloxypropionaldehyde of formula wherein "ac" denotes acyl (e.g. acetyl), with an acetoacetamide of formula, CH 3 COCH 2 CONR<SP>1</SP>R<SP>2</SP>, in the presence of an acid catalyst. The catalyst used may be an acidic ion exchange resin, a Lewis acid (e.g. ZnCl 2 , AlCl 3 ), or 0À005 to 25% by weight, with reference to the α-acyloxypropionaldehyde, of an organic or inorganic acid (e.g. p-toluenesulphonic acid, H 2 SO 4 , H 3 PO 4 , HCl, HI, HBr). The reaction is generally effected at - 10‹ to + 180‹ C. and in the presence of an organic solvent (e.g. benzene, toluene, xylene, cyclohexane, tetrahydrofuran, methanol, ethanol, methylene chloride). Superatmospheric pressures (e.g. up to 700 atmospheres gauge) provided by a gas inert under the reaction conditions (e.g. CO) may also be used. The examples describe the preparation of 2,5 - dimethylfuran - 3 - carboxylic cyclohexylamide and 2,5 - dimethylfuran - 3 - carboxanilide. The products are fungicides.
Patent GB-322268-A (GB)
Title: New or improved amusement apparatus
IPC: A63F9/14
Filed: 1928-09-20
Abstract: 322,268. Evans, A. Sept. 20, 1928. No Patent granted (Sealing fee not paid). Games of skill.-A game apparatus comprises a moving drum or table which traverses a model vehicle which is separate from and is capable of being moved relatively to the said drum or table by means under the control of the player. A rotatable drum 3 carrying a representation of a road 25 is driven by a falling weight 10 controlled by a lever 9 and has its speed regulated by the mechanical governor 17<a> and friction wheel 18<a>. A model vehicle 32 is carried by an arm 33 secured to a bracket 34 by an eye-bolt, 35. The bracket 34 is mounted on a member 35<a> connected at one end by a hinge 36 to an L-shaped member 37 rigidly carried by a slidable member 38 movable endwise upon a guide rod 39. The vehicle 32 can be moved to or from the periphery of the drum 3 by the adjustment of the nut 43 on the bolt 42. On the lower portion of a steering column 8 is provided a pulley 44 over which passes a flexible member 45 which passes over a pair of guide pulleys 46 and which has its ends attached to the sliding member 38. Thus turning of the steering wheel 7 moves the vehicle 32 transversely to the drum 3. The vehicle 32 is included in the same electrical circuit as contact wires 27 provided along the edges of the track 25 and the arranement is such that whenever the vehicle 32 touches these contacts an electrical circuit is completed or broken and the pointer 48 operated. Instead of using the falling weight 10, the drum 3 may be driven by any electrical, mechanical or gravitational means. In a modification the drum is replaced by a rotatable table on which a plurality of vehicles and steering mechanisms can be provided. The connections between the steering wheel or controlling member and the vehicle, or the connections between the driving source and drum or table, may normally be severed but may be restored by suitable coin-freed mechanism.
Patent GB-1309475-A (GB)
Title: Process for the preparation of beta-cyanoethyl esters of carboxylic acids
IPC: C09F5/00
Filed: 1970-06-04
Abstract: 1309475 #-Cyanoethyl esters MITSUI PETROCHEMICAL INDUSTRIES Ltd 4 June 1970 [4 June 1969 19 Jan 1970 (3)] 27101/70 Heading C2C #-Cyanoethyl esters of C 1-20  aliphatic, C 6-20  alicyclic or C 7-20  aromatic carboxylic acids are obtained by heating the carboxylic acids with acrylonitrile at 100 to 300 C. in the absence of a catalyst or at 50 to 300 C. in the presence of a catalyst. The catalyst may be (1) a mixture of metallic copper and a copper compound which is an oxide, a hydroxide, an inorganic acid salt, a salt of a C 1-20  organic carboxylic acid, an alcoholate or an acetylacetonate of copper or a complex thereof with a phosphine, amine, pyridyl or dipyridyl compound, or (2) an oxide, a hydroxide, an inorganic acid salt, a salt of a C 1-20  organic carboxylic acid, a C 1-8  alcoholate, a phenolate or acetylacetonate of lithium, sodium, potassium, copper, silver, gold, magnesium, calcium, strontium, barium, zinc, cadmium, mercury, aluminium, gallium, thallium, germanium, tin, lead, titanium, zirconium, antimony, bismuth, vanadium, tantalum, chromium, manganese, iron, cobalt, nickel, molybdenum, ruthenium, rhodium, palladium, tungsten or platinum or a complex thereof with a phosphine, amine, pyridyl or dipyridyl compound, or (3) metallic magnesium, iron and aluminium.
Patent GB-723714-A (GB)
Title: Method of transforming substituted oxazol-5-one-compounds into n-acylated aminodiols
IPC: C07D263/42
Filed: 1952-10-29
Abstract: N-acylated aminodiols of formula <FORM:0723714/IV (b)/1> where R1 and R2 are the same or different and represent hydrogen, halogen, or a lower alkyl or lower alkoxy radical with 1 to 8 carbon atoms, R3 is hydrogen or a nitro group, and R4 is phenyl or a lower alkyl radical of 1 to 8 carbon atoms optionally substituted by halogen, are prepared from 4-(a -hydroxybenzal)-oxazol-5-one compounds of formula <FORM:0723714/IV (b)/2> by (1) boiling with water or aqueous alcohol to obtain a ketone compound of formula <FORM:0723714/IV (b)/3> which is then formylated (e.g. by warming with a mixture of ethyl alcohol, 40 per cent aqueous formaldehyde and sodium bicarbonate) and subsequently reduced (e.g. by heating with a solution of aluminium isopropylate in anhydrous isopropyl alcohol); (2) refluxing with a lower aliphatic alcohol of 1 to 8 carbon atoms (e.g. ethyl, propyl or butyl alcohol) for several hours to obtain a keto-ester of formula <FORM:0723714/IV (b)/4> in which R5 denotes a lower alkyl radical of 1 to 8 carbon atoms, which is subsequently reduced with a calculated amount of lithium aluminium hydride; (3) reduction with a calculated amount of lithium aluminium hydride in ethyl ether or dioxane and subsequently adding an excess of water to the reaction product in order to obtain the intermediary compound of formula <FORM:0723714/IV (b)/5> which undergoes re-arrangement to the N-acylated aminodiol. The final products are obtained as a mixture of the two diastereoisomeric racemates of the threo and erythro forms. Preferred starting materials are 4-(a -hydroxy-41-nitrobenzal)- or 4-(a -hydroxybenzal)-oxazal-5-ones which further contain a phenyl or alkyl substituent in the 2-position (the alkyl radical having 1 to 8 carbon atoms and being optionally substituted by halogen), particular examples being 2-chloromethyl-4-(a -hydroxy-41-nitrobenzal) - oxazol - 5 - one and 2 - phenyl-4 - (a  - hydroxybenzal) - oxazol - 5 - one. The examples describe the preparation of 1-paranitrophenyl - 2 - dichloroacetamido - 1 : 3-propanediol, 1 - phenyl - 2 - benzoylamido-1 : 3 - propanediol, 1 - (31 - bromo - 41 - methoxy - phenyl) - 2 - acetamido - 1 : 3 - propanediol and 1-para-tolyl-2-dichloroacetamido-1 : 3-propanediol.  Specification 720,649 is referred to.
Patent GB-1299381-A (GB)
Title: Improvements in or relating to apparatus for generating ion beams
Inventor: PEASE RENDEL SEBASTIAN
IPC: H05H1/22
Filed: 1969-05-29
Abstract: 1299381 Ion beam apparatus UNITED KINGDOM ATOMIC ENERGY AUTHORITY 17 March 1970 [29 May 1969] 27377/69 Heading H1D Apparatus for generating a beam of ions comprises a laser 17, 18 generating a plasma in a magnetic confinement system 11 having at least one loss region from which plasma escapes, and means 10 for accelerating ions from said escaping plasma. A solid particle 13 falling through the focal volume of a lens 14 operates a detector 15 to trigger a Q-spoiled laser comprising an oscillator stage 17 and an amplifying stage 18. Ions produced by ionization of the particle by the laser beam are trapped between the coils 19 of a pulsed magnetic mirror having a 4 cm. diameter exit aperture providing an emergent ion beam which is radially confined by a focusing coil 21 and enters a Van de Graaf accelerator 10 or a heavy ion linear accelerator or a cyclotron.
Patent GB-252614-A (GB)
Title: Improvements in safety razors
IPC: B26B21/50
Filed: 1925-10-31
Abstract: 252,614. Oskin, B. C. Oct. 31, 1925. Razors, safety. To facilitate removal and insertion of the blade A in a safety razor of the kind provided for stropping purposes with parallel shafts 13, 14 geared together by pinions 15, 16, the blade is held between a plate B fixed to the shaft 13 and a plate C rotatable on the shaft 14 and slidable thereon, being urged in one direction by a spring 23. Plate B has tongues 28, 29 adapted to pass through elongated rounded holes 18, 19 in the blade and corresponding openings 25, 26 in the plate C, which is moved by hand to the right, Fig. 3, to allow the tongues to pass, and is then moved by the spring to engage the plate C. under the tongues. At the same time, a tongue 24 on plate C passes through an elongated rectangular opening 17 in the blade and a corresponding opening 27 in plate B. The device is then in condition for stropping in the usual way. For shaving use, the tongue 24 is caused to pass through a hole 30 and engage a comb guard-plate 9 rigidly secured in the handle 2, the guard plate being provided with upstanding lugs 12 in which the shafts are journaled. The handle may be solid, or, as shown, may be hollow to hold a brush 3 and provided with a drip vent 4
Patent GB-899376-A (GB)
Title: New naphthalene monoazo triazine dyestuffs
Inventor: TILLEY COLIN GEORGE
IPC: C09B62/085
Filed: 1959-08-12
Abstract: The invention comprises dyes which, as their free acids, are of formula <FORM:0899376/IV (c)/1> where R is H or an alkyl radical of 1-4 carbon atoms, which may be substituted, X is Cl or Br, Y is a substituent of at most 13 carbon atoms either directly or through O, S or N, attached to the triazine ring, Z and Z1 may be H or SO3H and n is 0, 1 or 2, provided that the dyes have at least 3 SO3H groups. The dyes mat be made by diazotizing an appropriate naphthylamine sulphonic acid and coupling with the required triazine component, by treating an appropriate aminoazo dye with the required dihalotriazine or by introducing the Y group by conventional methods into corresponding dihalo-triazine dyes.  Representative of specified values for R are methyl butyl and hydroxyethyl. Indicated for Y are, for example, propyl, cyclohexyl, m-tolyl, o-anisyl, p-nitrophenyl, naphthyl, methoxy, 3-sulphophenoxy, 6-bromo- 2-naphthoxy, methylmercapto, phenylmercapto, dimethylamino, b -hydroxyethylamino, disulphophenyl- and disulphonaphthyl-amino, nitrophenylamino and N-methylphenylamino. Preferably R is H and X is Cl and especially when derived from 1,5-disulpho-2-naphthylamine and with 21 H and 2 SO3H. The dyes colour cellulosic materials, e.g. cotton, linen and viscose rayon.  Preferably colouring processes are effected in conjunction with an acid-binding agent.  Red shades are obtained. Examples are provided of the preparation of the dyes and their use in colouring cellulosic materials in bluish-red shades. Specifications 797,946, 836,248, 838,341 and 847,635 are referred to.
Patent GB-782104-A (GB)
Title: A new or improved electrical plug and socket connection
Filed: 1954-09-23
Abstract: 782,104. Two-part couplings; caps and holders for thermionic valves. HENRY & THOMAS, Ltd., and HUTCHINS, R. S. Sept. 23, 1955 [Sept. 23, 1954], No. 27576/54. Drawings to Specification. Class 38 (1). The subject-matter of this Specification is substantially the same as that of Specification 782,103 but the claims differ.
Patent GB-319210-A (GB)
Title: Process for treatment of acid tars or resins
IPC: C10C1/00
Filed: 1929-09-11
Abstract: 319,210. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij, (Assignees of Sautermeister, C.). Sept. 17, 1928, [Convention date]. Void [Published under, Sect. 91 of the Acts]. Pitch and tar.-Acid tars, whose sulphuric acid content has been reduced to 1-2 per cent by treatment with steam, are converted into commercially valuable products by mixing with crude gas tar and distilling the mixture. The acid tars dissolve the crude gas tar and the ammonia in the latter neutralizes the sulphuric acid in the former; the proportion of gas tar added is preferably 10-15 per cent. The products of distillation are more elastic than normal pitches and are suitable for road making, impregnating roofing-felt, and the like.
Patent GB-1178312-A (GB)
Title: Jet Flap Controlling means.
IPC: F02K1/00
Filed: 1967-06-15
Abstract: 1,178,312. Boundary layer control. GIRAVIONS DORAND. 15 June, 1967 [20 June, 1966; 12 May, 1967], No. 27651/67. Heading F2R. [Also in Division B7] The jet 1 of a jet flap at the trailing edge of an aerofoil is deflected by a flexible flap 2, the curvature of the flap for any given deflection a of the jet being controlled to be different when deflected upwards from when deflected downwards. As shown in Fig. 1, when the jet is deflected upwards the radius of curvature of the flap 2 may only be twice the height of the jet nozzle exit, and when deflected downwards may be down to 10 times said height to make use of the Coanda effect. The front end 78 of the flap 79 may be rigid, Fig. 12, and inclined to the nozzle exit flow centreline. The flap may be constructed of a series of metal sheets 43, 44, 45 with layers of rubber 46, 47 glued therebetween, only the top metal sheet 43 being rigidly secured to the flap end 50. The outer end of the short sheet 45 may be of a sawtooth outline. The operating mechanism may include a suitable linkage, Fig. 2, and may be actuated hydraulically pneumatically, electrically or mechanically.