baber/WOPTO huggingface dataset:
Patent GB-1521788-A (GB)
Title: Manufacture of articles from hexagonal boron nitride
IPC: C04B35/583
Filed: 1976-07-06
Abstract: 1521788 Sintered boron nitride MOSKOV HIMIKO-TEKHNOLOGICHE INST IM DI MENDELEEVA 6 July 1976 27989/76 Heading C7D Sintered hexagonal BN articles are formed from a compacted powder mixture of BN and 1-5 wt. per cent of a dopant which forms a liquid phase during sintering, e.g. oxides or borates of Mg, Ca, Y, La, packing the compact in a first layer of a material inert to BN and an outer layer of carbonaceous material and sintering at 1600-1800‹C in an oxidizing atmosphere. The dopant is volatilized during sintering.
Patent GB-777437-A (GB)
Title: Improvements relating to the application of an electrically conducting coating to aninsulating body for the electrical connection of conductors held thereby
IPC: F42C19/12
Filed: 1955-09-30
Abstract: 777,437. Making electric fuze-heads. AKTIEBOLAGET BOFORS. Sept. 30, 1955 [Oct. 11, 1954], No. 27909/55. Class 9 (1). Conductors 15a, 15b are assembled by casting in a hemispherical insulating body 25 with their base ends flush with the surface of the body, the ends of the conductors are passed through a hole in an insulating plate 27 having hemispherical recesses in which a number of the bodies 25 are received, and the assemblage is arranged with the conductors spread out over the yoke 28 of an electromagnet and under metal plates 29, 30. A liquid with adhesive properties and containing conductive ferromagnetic particles is applied to the surfaces of the bodies 25 with a brush and the coil 31 of the electromagnet is energized so that the particles align themselves with the field between the conductor ends and effect good electrical connection between them. After the coatings have dried, with the particles fixed in position, the surfaces are covered with an initiating explosive, such as acetylene silver. The conductors may be of magnetic material and their ends have insulating coatings 33, 34. Specification 777,438 is referred to.
Patent GB-618690-A (GB)
Title: Improvements in or relating to sound recording on carriers
IPC: G11B7/00
Filed: 1946-09-18
Abstract: 618,690. Sound recording on film. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOEILAMPENFABRIEKEN. Sept. 18, 1946, No. 28010. Convention date, Feb. 19, 1943. [Class 40 (ii)] In a sound-film, particularly a combination sound and picture film, the sound track and the background are of different colours, the track being transparent for one of two complementary colours and the background transparent for the other. The sound track, for example, may be orange and the background blue. Such a film may be used with white light for reproducing, photoelectric cells being more sensitive to red end of the spectrum, or to produce on a colour film a true colour copy or in complementary colours, according to the method of developing, or to produce a positive or negative on ordinary black and white film, according to the method of developing. An orange light may be used to obtain a blue track with a white background, or an orange track with a black background, or a blue light to obtain a white track with an orange background, or black track with a blue background. The special advantage in practice is that an intermediate positive is unnecessary for recording sound for use in a combined sound and picture film. The recording of a sound track on a colour film as described may be carried out by the use of a blue filter having a triangular orange centre part 2 for the purpose of projecting an image which is vibrated, in accordance with the sound signals, across a recording slit 3, behind which the film moves. Specification 434,920 is referred to.
Patent GB-820868-A (GB)
Title: Improvements in or relating to refractor members for use in lighting fittings
Inventor: BEGGS STANLEY SUTTON
IPC: F21V5/00
Filed: 1956-09-13
Abstract: 820,868. Mouldinglightingfittings. GENERAL ELECTRIC CO. Ltd. Oct. 22, 1957 [Sept. 13, 1956], No. 28063/56. Class 87(2). [Also in Group XI] In a refractor member of bowl or trough form for a lighting fitting, having linear prisms for deviating light into preferred directions, and in which one or more groups of prisms are provided to modify light at small angles to the vertical axis, some at least of the prisms of these groups have flat surfaces between them which taper towards or away from the preferred directions. Fig. 1 shows a bowl of the type in Specification 818,401 [Group XI] with four directions VD1-VD4 of preferred emission, having side prisms P in planes containing the vertical axis V, the lower bowl-shaped part 2 having zones of prisms B at right angles to the preferred directions and separated by flats tapering towards the preferred directions. The bowl may be made by moulding, the mould itself being cut by a cutting tool rotating relative to the surface of the mould about an axis displaced from the axis of revolution of the surface of the mould. Alternatively the prisms or flats may be directly produced on the bowl in a similar manner.
Patent GB-641109-A (GB)
Title: Improvements in or relating to shuttering for use in earth excavations
IPC: E02D17/08
Filed: 1947-10-21
Abstract: 641,109. Shuttering for earth excavations. REES, H., DOUGHTY, E., and MASON, A. Oct. 21, 1947, No. 28095. [Class 20(ii)] Shuttering for earth excavations comprises a pair of opposed telescopic side units each consisting of a main panel A with flanges B bent to form channels serving as guides for the flanges. E of a secondary panel D, the side units being adjustably spaced apart by brackets G pivotally secured to the ends of the side units and connected by expander screws I.
Patent GB-1456565-A (GB)
Title: Adjustably codable reflecting device
IPC: B65G47/49
Filed: 1974-06-25
Abstract: 1456565 Adjustable coded reflector INTERROLL FORDERTECHNIK GmbH & CO KG 25 June 1974 [17 July 1973] 28113/74 Heading G4M An adjustable coded reflector for attachment to articles, e.g. in a warehouse or store, has a body carrying reflective markings, the position of which can be altered. In one embodiment a body 21 has transverse channels (26) receiving sliders 27 and has two rows of windows 24 in a front surface. The sliders carry a reflective portion and are movable to position the reflective portion behind a window in one or the other or both or neither of the two rows. Alternatively the reflective portion may be on the body and may be covered by a movable slide (Figs. 6, 8, not shown).
Patent GB-1144884-A (GB)
Title: Production of 1,3-diene polymers
Inventor: NAARMAAN HERBERT
IPC: C08F36/06
Filed: 1966-06-23
Abstract: 1,144,884. Polymerizing dienes. BADISCHE ANILIN- & SODA-FABRIK A.G. 23 June, 1966 [24 June, 1965], No. 28133/66. Heading C3P. Polymers of dienes are made by polymerizing 1,3-dienes containing 4-6 carbon atoms in the presence of a catalyst which comprises a transition metal chelate complex of a thio-α, γ-dicarbonyl compound. A co-catalyst such as a cycloalkene, an organic halogen compound, or transition metal chelate complexes of α,γ-dicarbonyl compounds which contain no sulphur, or a salt of a metal of Groups I to III of the Mendeleev Periodic Table may also be present. Suitable complexes are copper (II) thioacetoacetic ethyl ester, cobalt (III) monothioacetylacetonate, manganese (III) mono-thiobenzoylacetone, cerium (IV) dithiobenzoyl-methane, and thallium (I) monothioacetyl acetonate. The Specification contains extensive lists of co-catalysts. The polymerization may be effected in bulk, solution, suspension, or emulsion, particularly aqueous emulsion using conventional recipes. Stabilizers such as trinonylphenyl phosphite, may be added before or during polymerization. Specified dienes are butadiene, isoprene, 2,3-dimethylbutadiene, 2- phenylbutadiene, and chloroprene. Minor amounts of other ethylenic compounds may be copolymerized with the diene e.g. esters of acrylic and methacrylic acid, esters of fumaric and maleic acids, acrylic acid, methacrylic acid, acrylo or methacrylonitrile, styrene, vinylethers and vinyl esters. The polymers are preferably recovered from the aqueous emulsions by adding, prior to precipitation of the polymer, a strong complex - forming substance which binds the metal ions of the catalyst into watersoluble stable complex compounds. The polymers are suitable for motor tyres.
Patent GB-1041267-A (GB)
Title: Improvements in or relating to the manufacture of stainless steel products
Inventor: GOLLER GEORGE NICHOLAS
IPC: C21D8/06
Filed: 1963-07-16
Abstract: A stainless steel product such as strip or wire not exceeding 1/2 inch in diameter or thickness, is made from a material comprising: .Chromium.16-26% .Nickel.6-22% .Carbon.not exceeding 0.25% .Molybdenum.0-3% .Titanium.0-18% .Columbium.0-1.2% Remainder iron, possibly with tracts of manganese, silicon, phosphorus and sulphur, by the steps of cold reducing the material by at least 80% of its original cross-sectional area to give a tensile strength of at least 245000 lb/sq. inch, and tempering the reduced product at 1200-1900 DEG F for up to 30 minutes so as to give an elongation of from 16-46% with a tensile strength from 100000-151000 lb/sq. inch and a fine grain structure.  The product is preferably a wire to be woven into a wide stainless steel belt for use in paper making machines.  Slightly thicker wire is used for the weft than for the warp in the woven belt.  Strips of the belt may be welded or preferably brazed together with silver solder.  Many specific examples are given of different compositions of steel which can be used, together with their tensile and fatigue properties.
Patent GB-655741-A (GB)
Title: Improvements in and relating to flexible hose couplings
IPC: F16L33/207
Filed: 1948-10-29
Abstract: 655,741. Hose couplings. MELSOM, W. A., and BOWDEN (ENGINEERS), Ltd. Oct. 29, 1948, No. 28170. [Class 99(i)] A sleeve comprising a portion 14 of reduced internal diameter extending between an end wall 8 and an internal shoulder 12, an external swaging band 16 formed by a thick-walled portion of the sleeve at about the same axial position as the shoulder and of greater or the same diameter as that of portion 10, and a thin-walled hinge portion 15 between the band and wall and having an external diameter less than that of portion 10, is, after the assembly of an insert 5 into the bore of a hose 1, positioned on the hose so that portion 14 lies around an externally recessed part of the hose, the band being then contracted so that the sleeve hinges inwards at portion 15 to displace the resilient material of the hose and grip the hose reinforcement, which may be ribbon-like groups of high tensile steel wire braided to tubular form, between the shoulder and the insert which may have a collar 6 abutting the wall 8. There may be a separate ring forming the swaging band, a separate ring replacing the shoulder and an integral or separate ring 7 of the insert on to which the reinforcement is gripped. The separate shoulder and insert rings may be of a soft metal so that textile hose reinforcement is gripped without damage. The hose may have a plurality of reinforcing layers with intervening layers of resilient material and be recessed such that only the inner reinforcing layer is gripped. In a modification, the insert projects through the sleeve, the end portion of which is swaged into an annular groove of the insert. Specifications 540,490, 553,868 and 640,140, are referred to.
Patent GB-251186-A (GB)
Title: Improvements in or relating to circular saws
IPC: B23D61/02
Filed: 1925-11-09
Abstract: 251,186. Mars-Werke Akt.-Ges., and Jacobowitz, A. Nov. 9, 1925. Circular-saw machines; saws.-The edge of a high speed friction saw is provided with milled teeth 2 and broken by arc-shaped recesses 3. Fig. 2 shows the saw mounted on the spindle of a driving motor.
Patent GB-779906-A (GB)
Title: Improvements in or relating to electro-plating process and apparatus
Inventor: STEWART KENNETH MACKENZIE GORD
IPC: C25D5/18
Filed: 1954-09-30
Abstract: 779,906. Electroplating apparatus. ELECTRO-CHEMICAL ENGINEERING CO., Ltd. Sept. 19, 1955 [Sept. 30, 1954], No. 28232/54. Drawings to Specification. Class 41. Articles to be plated are moved in succession through a plating bath and on immersion are subjected to an initial relatively high current density for a relatively short period while articles previously immersed and so treated receive simultaneously a normal plating current density for a relatively long period, the articles during transit through the bath being suspended from a cathode bar which is in two endto-end parts electrically insulated from each other as by an air gap, one part preferably short in length carrying a high current and the other preferably relatively long part carrying a normal plating current. Either a first rectifier is connected between anode and the short part of the cathode bar, a second rectifier is connected between anode and the long part of the cathode bar, and a third rectifier is connected through a switch between the second rectifier and the short part of the cathode bar, the switch being actuated either manually or automatically by vertical movement of the short part of the cathode bar by means of which fresh articles are introduced into the bath; or a pair of rectifiers are connected in parallel between anode and the short part of the cathode bar while a third rectifier is connected between anode and the long part of the cathode bar so that the normal plating current density remains uniform. The articles after plating may be moved on to a further bar by vertical movement of which they are conveyed into a second plating tank.
Patent GB-380622-A (GB)
Title: Improvements in and relating to indicating devices for wireless tuning apparatus
IPC: H03J1/04
Filed: 1931-10-12
Abstract: 380,622. Adjusting wireless apparatus. POLLACK, A. J., Loretto House, Heaton, and ROBERTS, E. H., 39, Scholemore Lane, both in Bradford, Yorkshire. Oct. 12, 1931, No. 28240. [Class 37.] A panel P, Fig. 1, of glass, transparent paper, celluloid, &c., has a dark ground with clear lettering to represent the names of a series of stations in one or more lines, and clear numbers and line divisions to indicate wave-lengths. The indications referring to stations on long and short wave bands are arranged on opposite sides of a transparent portion P<1> behind which 'is mounted a travelling band B, Fig. 4, having a slot B<1> so formed that light from a source behind the band illuminates the wave-length number and the name of the station. The band may be replaced by a metal, plate with a slot therein in connection with the condenser drive, the panel being curved or otherwise shaped.
Patent GB-324692-A (GB)
Title: Improvements relating to the combined heat and pressure treatment of materials, particularly solid or liquid carbonaceous matter
IPC: C10G1/06
Filed: 1928-10-02
Abstract: 324,692. McGuinness, M. Oct. 2, 1928. High pressure apparatus other than autoclaves.-High pressure apparatus for the destructive hydrogenation of carbonaceous materials comprises three or more vessels 1, 2, 3, 4 arranged one within the other and subjected to stepped pressures decreasing outwardly. The space between the reaction vessel 1 and the next vessel 2 is filled with insulating material, e.g. asbestos, and is maintained under pressure by means of a gas, but oil may be used both to maintain the pressure and act as an insulator. All pipes and fittings, e.g. the perforated tube 8 for introducing hydrogen, the oil supply pipe 7, the pipe 9 for withdrawing the products, the heating element 6 and the gas supply pipes 11, 12, 13 are arranged at one end of the apparatus in order that the vessels may be able to expand freely on rollers 5. One way relief valves 14, 15 and inspection manholes 16 are provided.
Patent GB-192144-A (GB)
Title: Improvements in or relating to the production of slides for optical projection apparatus
IPC: G03B21/64
Filed: 1921-10-25
Abstract: 192,144. Howells, Ltd., D. P., (Howells Cine Equipment Co.). Oct. 25, 1921. Lantern slides.-An announcement slide comprises a sheet of celluloid which is inscribed by means of carbon paper and may be mounted between two sheets of glass in a metal holder (not shown). The arrangement for inscribing the required legend consists of a case 12 cut away at 13 and open at both ends 17, and a sheet 11 of red or other carbon paper which is wrapper round the celluloid sheet 10 so as to mark it on both sides, the two sheets being then slipped into the holder 12. The inscription may be typewritten. One side of the holder 12 may be detached and, in virtue of its opening 13, used as a mask in the finished slide. Reference has been, directed by the Comptroller to Specification 129,444.
Patent GB-390547-A (GB)
Title: Improvements in or relating to liquid fuel feed pumps for internal combustion engines of the diesel or compression ignition type
IPC: F02M59/08
Filed: 1931-10-14
Abstract: 390,547. Fuel-injection pumps. WISEMAN, Ltd., A. and WISEMAN, A., 89, Glover Street, Birmingham. Oct. 14, 1931, Nos. 28486/31 and 15486/32. [Class 102 (i).] In a fuel-injection pump, in which two plungers having a common pressure chamber a<1> operate differentially, as described in Specification 351,112, the plunger bores are formed in a single block c and may be inclined as shown. The discharge fitting t is directly secured to the block c bv means of a union nut o. The block is formed with a shoulder engaging a shoulder y in the housing and is secured by a screwed ring n surrounding the nut o. The inlet passage k is formed by semicircular recesses in the block c and in the housing. The plungers are operated from a cam j<1> through cross-heads l<1> engaged by the rounded ends of links m<1> pivoted to levers resting on the cams. The cross-head guides are formed in a single member i<1> having a gutter e<1> for leading away leakage. Specification 361,970 also is referred to.
Patent GB-1389045-A (GB)
Title: Single selector shaft manual gearboxes
IPC: F16H63/38
Filed: 1972-06-17
Abstract: 1389045 Change-speed gear BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 26 June 1973 [17 June 1972] 28494/72 Heading F2D A single slide-turn gear-ratio selector rod has one or more transverse segmental grooves 12 ... 15, engaged by a detent for locating gear positions. The grooves may be normal or at an angle to the radial plane of the detent and may have sides of differing steepness to produce different resistance to movement. A circumferential groove 11 is provided for neutral.
Patent GB-876090-A (GB)
Title: Improvements in benzothiazole-monoazo-aniline dyestuffs suitable for colouring textile materials
Filed: 1957-09-10
Abstract: The invention comprises a process for the preparation of dyes in which a compound of formula:-  <FORM:0876090/IV(c)/1> where Z is an allyl or alkyl group of 1-4 carbon atoms, is diazotized and coupled with a compound of formula:-  <FORM:0876090/IV(c)/2> where X is H, Cl, Br, Me, Et, MeO, EtO, CH3CONH, CH3CH2CONH, or n-butyrylamino Y is H, Me, Et, MeO or EtO, R is hydroxy-alkyl of 2-4 carbon atoms and R1 is H, alkyl of 1 to 4 carbon atoms, hydroxyalkyl of 2 to 4 carbon atoms, alkoxyalkyl of 3 to 4 carbon atoms, cyanoalkyl of 3 to 5 carbon atoms, carbomethoxymethyl, carboethoxymethyl, b -carbomethoxyethyl, b -carboethoxyethyl, b , b -difluoroethyl or -n-propyl, g , g -difluoro-propyl or -nbutyl, d , d -difluoro-n-amyl, b , b , b -trifluoroethyl, g , g , g -trifluoropropyl or d , d , d -trifluorobutyl and acylating the product with an aliphatic carboxylic acid acylating agent. 2-Amino-6-methylsulphonylbenzothiazole is the preferred diazo component.  Acylation is preferably effected with an anhydride or acid chloride.  The dyes colour textile materials especially those made of, or containing, a cellulose carboxylate derived from aliphatic carboxylic acids of 2 to 4 carbon atoms, particularly cellulose acetate.  Examples are provided of the preparation of the dyes and their use in dyeing cellulose acetate in red or yellow shades.
Patent GB-285708-A (GB)
Abstract: 285,708. Werekshagen. R. E., Braun Ges., G., and Rechberg Ges., A. June 10, 1927. Time of working of machines. - A device for indicating the efficiency or the time of working of a machine comprises a shaft a operatively connected to the driving element of the machine, a clutch member b<1> rotated thereby, a second clutch member b<2> cooperating with the member b<1> and gearing d, e,. actuating a cam member f to operate a lever h and cause another clutch member K to couple the spindle i of the indicating pointer B to the driving wheel A of a clockwork mechanism (not shown). At the end of the initial 90‹ of movement of the shaft a the member b<2> is arrested by a fixed stop so as to maintain the cam in engagement with the lever h and hold the clutch K operative. When the rotation of the shaft a ceases a spring g is effective to disengage the cam, and through the gearing d, e returns the member b<2> to initial position. The scale C is graduated to as to give the working time as a per-centage of the theoretical or maximum efficiency working time.
Patent GB-723006-A (GB)
Title: Manufacture of acrylamides
Inventor: WEBSTER WILLIAM
IPC: C07C233/09
Filed: 1952-11-18
Abstract: A propionamide of formula RR1N-CH2-CHR2-CONH2, in which R and R1 are hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted alkyl, aryl or substituted aralkyl radicals or together form a ring with the nitrogen atom and R2 is hydrogen or an alkyl radical, is heated at a temperature in the range 100-300 DEG  C. to give an acrylamide of formula CH2=CR2-CONH2 and ammonia or an amine of formula NHRR1. Compounds which are particularly suitable as starting materials are those in which R2 is hydrogen and R1 and R are hydrogen, alkyl groups or p-carboxyamido ethyl groups.  The heat treatment may be carried out under normal, increased or reduced pressure and in the presence of a polymerization inhibitor.  Preferably both a non-volatile inhibitor, e.g. hydroquinone, pyrogallol, N - phenyl - a  - naphthylamine, copper and sulphur, and a volatile inhibitor, e.g. thymol, tertiary butyl catechol, triethylamine, quinoline, iso-octyl morpholine, and N : N-di-isooctyl-methylamine, are used. When the starting materials are b  - aminopropionamide, di - (b  - carboxyamido-ethyl) amine or tri-(b -carboxyamidoethyl) amine they may be prepared by treating an ester of acrylic acid with ammonia. Other starting materials are obtained by treating an ester of acrylic acid with the appropriate amine to give the corresponding p-substituted amino-propionate which is then treated with ammonia to give the b -substituted amino-propionamide.  In the examples: (a) methyl acrylate is reacted with diethylamine to give methyl-b -diethylaminopropionate which is treated with ammonia to give p-diethylamino-propionamide; this is heated to give acrylamide and diethylamine; (b) b -dimethylamino propionamide, b -methylethylamino propionamide, b -di-n-butyl-amino propionamide, b  - di - (b  - chlorethyl) - amino propionamide, b  - di - (g  - hydroxypropyl) - amino propionamide, b  - N - piperidyl propionamide, b  - dicyclohexylamino propionamide, b  - N - methyl - N - cyclohexylamino propionamide, b  - N - methyl - N - (4 - methyl cyclohexyl)-amino propionamide and b -N-methyl-N-(4-hydroxycyclohexyl) amino propionamide are subjected to heat treatment in turn to give acrylamide and the corresponding amines; (c) tri - (b  - carboxyamidoethyl) - amine, N - (CH2 CH2CONH2)3 is obtained by reacting ammonia with methyl acrylate and is subjected to heat treatment to give acrylamide; (d) methyl a -methacrylate is treated with ammonia and the product is subjected to heat treatment to give a -methacrylamide and ammonia; (e) methyl acrylate is reacted with n-butylamine to give methyl-b -n-butyl-aminopropionate (C4H9-NH-CH2-CH2-COOCH3) which is converted to b -n-butyl-amino propionamide by treatment with ammonia; this is subjected to heat treatment to give acrylamide and n-butyl-amine; (f) the process of (e) is repeated using instead of n-butylamine the following amines successively: ethylamine, ethanolamine, cyclohexylamine, 4 - hydroxy - cyclohexylamine, benzylamine and parahydroxybenzylamine to give acrylamide and the corresponding amine.