baber/WOPTO huggingface dataset:
Patent GB-1114140-A (GB)
Title: Apparatus for maintaining continuity of a variable external contour of an adjustable jet pipe
Inventor: JUMELLE LOUIS FRANCOIS
IPC: F02K1/12
Filed: 1965-12-13
Abstract: 1,114,140. Jet propulsion nozzles. SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Dec.13, 1965 [Dec.14, 1964], No.52896/65. Heading F1J. The invention relates to means for maintaining continuity of the variable external contour of an adjustable jet propulsion nozzle having adjustable flaps, the means comprising inflatable members secured to the external surfaces of the nozzle fixed structure and adjustable flaps at each side of the pivotal points of the flaps. The jet nozzle shown comprises a fixed portion 1 and a fixed portion 2 which define therebetween an opening 5 for flow of ambient air during the subsonic phase as shown in Fig. 3, the flaps 3 being pivoted outwardly to close the opening 5 during the supersonic phase, Fig. 4. An inflatable member 13 is secured to the fixed structure 1 and flaps 3 in outwardly-facing recesses at either side of the pivotal point 4, the member 13 being uninflated in the position shown in Fig. 3 but inflated in the position shown in Fig. 4 whereby the external surface is rendered substantially continuous. Variable area flaps 7 are pivotally mounted at the downstream end of the fixed structure 2 at pivotal points 6a, 6b and an inflatable member 14 is secured to the external surfaces of the structure 2 and flaps 7 at either side of the pivotal point 6b, the member being uninflated in the subsonic phase, Fig. 3, but inflated in the supersonic phase, Fig. 4. The jet pipe comprises also an inner wall 8 which defines with the structure 1 an annular passage 10 for flow of secondary air. Variable area flaps 9 are pivotally mounted at the downstream end of the wall 8. The members 13, 14 may be inflated by air under pressure tapped from the engine compressor.
Patent GB-1571621-A (GB)
Title: Integrated circuits and their manufacture
IPC: H01L21/225
Filed: 1976-12-24
Abstract: The integrated circuit contains complementary bipolar transistors whose particular structure, by employing a deposited semiconductor layer, permits simple fabrication. Conductor tracks (18, 19, 20) consisting of portions of the semiconductor layer are supported on a dielectric. Other portions (13, 14, 15) of the semiconductor layer are designed at least for contacts for certain active zones of the transistors. The complementary transistors both have a vertical structure. The integrated circuit is particularly suitable for logic circuits of the I<2>L type. <IMAGE>
Patent GB-1410327-A (GB)
Title: Tools for stripping wire having ptfe or other plastic insulation  covering
IPC: H02G1/12
Filed: 1971-11-22
Abstract: 1410327 Stripping conductors GENERAL ELECTRIC CO Ltd 22 Nov 1972 [22 Nov 1971] 54202/71 Heading H2C  A hand tool for stripping plastics (e.g. P.T.F.E.) insulation from a wire comprises a first member 5 rotatably mounted on a handle 1, an end-plate 6 on member 5 with a slot 14 having cutting edges for stripping a second member 3 rotatable relative to member 5 and slotted abutting parts 9, 21 on members 5, 3, respectively, to act as a shear on relative rotation of members 5, 3.  In use, a wire is placed first in slot 14 where it is retained by a flexible wire hook 16 and then in the aligned slots in abutting parts 9, 21. The wire is then gripped against member 5 with one hand and member 3 with the other and the two members relatively rotated so that the shear edges on parts 9, 21 sever the wire. The wire is then gripped in front of clip 16 with one hand while the tool is rotated with tie other, the U- shaped cutting edge in slot 14 thus cutting the insulation right round the wire. The wire is then pulled away from the tool the stripped off insulation being left behind.  A spring 18 is provided which urges members 5, 3 to rotate to positions in which the slots in abutting members 9, 21 are aligned.
Patent GB-1429290-A (GB)
Title: Scanning
IPC: G01N21/59
Filed: 1971-11-23
Abstract: 1429290 Scanning a web with a rotating block; automatic control of web position J T RILEY 23 Feb 1973 [23 Nov 1971] 54265/71 Headings G2J and G3R [Also in Division G1] In a device for scanning a web 20 light from a source 1 is caused to repeatedly scan across the web at a constant angle of incidence by a rotating glass block 4 and radiation reflected off the web is directed by a solid light guide, Figs. 3 and 5 (not shown), on to a photo-cell whose output is processed by an analyzing and control circuit Figs. 8 and 9 (not shown), to detect any changes in the web's surface characteristics (i.e. the position of a reference line running parallel to and adjacent to the edge of the web) in order to provide a control signal to adjust the movement of the web (i.e. control the running of the web so that the reference line is alway passing beneath the web in the same position relative to the device). A further photocell may be provided, Figs. 4 and 8 (not shown), at the edge of the web to provide a signal indicating the beginning and ending of each scan, the signal being used by the control circuit with the scanning signal to measure the time elapsed between them and to convert this to a D.C. voltage which is used for retro-active control of the web's position. A block diagram of a suitable electronic circuit, Fig. 8 (not shown), is disclosed.
Patent GB-1217845-A (GB)
Title: A process of and apparatus for manufacturing a material for electrical contacts
IPC: C01B32/949
Filed: 1967-11-29
Abstract: 1,217,845. Contacts for electric switches. W. C. HERAEUS G.m.b.H. 29 Nov., 1967 [24 Dec., 1966], No. 54398/67. Heading H1N. [Also in Division C7] In the fabrication of contact springs for switches substrates in the shape of formed springs, or of strips or bands, receive a coating of an electrically conductive material, deposited as a product of a chemical reaction between gaseous compounds or as a product of the decomposition of a gaseous compound. The substrates may be of Fe-Ni alloy, of " German silver," of brass, of a bronze material or of Cu and the coating may comprise one or more of Mo, W, Re and the platinum group metals, or a boride or carbide of Mo or W.
Patent GB-1254287-A (GB)
Title: A container assembly particularly for milk and food
Inventor: GROSS VINCENT PIUS
IPC: B65D25/04
Filed: 1968-11-19
Abstract: 1,254,287. Moulded boxes. V. P. GROSS. 18 Feb., 1970 [19 Nov., 1968], No. 54753/68. Heading B8P. A container, that may be injection moulded from a plastics material, comprises a crate 1 for milk bottles and a separate compartment 4 for bread, butter or eggs. A hinged lid 8, having a lip 11 to facilitate opening, protects the contents from mice and birds. The crate has two wire handles the horizontal portions of which are connected together by a plastics sleeve.
Patent GB-1204451-A (GB)
Title: Piperidine-4-carboxylic acid esters
IPC: C07D211/64
Filed: 1968-11-21
Abstract: 1,204,451. Substituted piperidine-4-carboxylic acid esters. JANSSEN PHARMACEUTICA N.V. 21 Nov., 1968 [22 Nov., 1967], No. 55235/68. Heading C2C. Novel compounds of formula and salts thereof wherein R is C 1-8  alkoxy, C 2-8  alkenyloxy, C 1-8  alkoxy (C 1-8 ) alkoxy, cycloalkyloxy, tetrahydrofuryl, phenoxy, halophenoxy, tolyloxy, xylyloxy, naphthyloxy or C 1-8  alkoxy-phenoxy, and Alk is C 1-5  alkylene, are prepared by one of the following methods:- (a) a compound of Formula III wherein Ph is phenyl is reacted with a compound of Formula II wherein X is a reactive ester group; (b) a compound of formula is reacted with a compound of formula wherein M is a metal; or (c) by reaction of an alcohol R-AlkOH with the acid of formula or an ester thereof. Intermediates of Formula III above are prepared either by debenzylation of the corresponding N-benzyl compound with hydrogen and palladium charcoal or by reaction of the alcohol R-Alk-OH with a compound of Formula VII N-Benzyl derivatives of the compounds of Formula III above are prepared by reaction of the alcohol of formula R-Alk-OH with a compound of formula or a corresponding ester. Pharmaceutical compositions having antidiarrhoea activity which may be used in conventional forms for oral administration comprise an above novel compound or salt and a carrier therefor.
Patent GB-1512780-A (GB)
Title: Doppler scanning guidance system radio receiver
IPC: G01S1/40
Filed: 1974-12-23
Abstract: 1512780 Radio navigation STANDARD TELEPHONES & CABLES Ltd 18 Dec 1975 [23 Dec 1974] 55381/74 Heading H4D In a Doppler scanning Guidance system of the kind wherein a signal is successively fed to antenna elements of a linear array to produce, at a remote - e.g. airborne receiver - a Doppler frequency shifted signal, the frequency being indicative of the bearing to the array, ground reflections from a point laterally spaced from the array and having approximately the same bearing from the receiver can give interfering Doppler frequency signals too near in frequency to the direct signals for filtering out. Movement of the A/C however changes the path length difference to the array and reflecting point whereby the two signals beat to give a rapidly amplitude varying Doppler signal. It is thus proposed to interpose an amplitude modulation suppressor A1 at the input to the zero IF frequency tracking oscillator 1 of the receiver. The tracking oscillation comprises a voltage controlled oscillator VCO providing quadrature phase signals for mixers M1, M2, the outputs of which are fed to a frequency discriminator FD via low pass filters LP1, LP2, which discriminator produces the control signal for the VCO.
Patent GB-1433880-A (GB)
Title: Method of testing a photographic emulsion
IPC: G03C1/76
Filed: 1972-12-05
Abstract: 1433880 Testing photographic material KODAK Ltd 29 Nov 1973 [5 Dec 1972] 56001/72 Heading G2X A liquid coating composition to be used for preparing a radiation-sensitive layer of a photographic sheet material is tested by dipping a strip of non-curling, open-weave fabric in the composition, wiping the strip to remove surplus composition from it, drying the strip and then using it for the test. The fabric may be nylon ribbon (exemplified) or may be polyester or glass fibre fabric. The wiping of the strip may be carried out by passing the strip through the nip of opposed rubber squeegee blades or by pulling it between first and second fingers. Examples refer to the testing of batches of silver chlorobromide emulsion (50 mole % chloride, 50 mole % bromide) by (1) exposing through a step wedge a strip of nylon ribbon treated with the emulsion, giving the strip standard processing then measuring the reflection density of the processed strip, and (2) exposing a strip of nylon ribbon to the same emulsion digested at 60 C with a sulphur-sensitizer, then carrying out the testing as in (1).
Patent GB-1454790-A (GB)
Title: Self-centring clutch release bearing
IPC: F16D23/14
Filed: 1973-12-04
Abstract: 1454790 Clutch release bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 4 Dec 1973 [9 Dec 1972] 56135/73 Heading F2L In a clutch release bearing the non-rotating race 11 and the sliding sleeve 1 have between axially extending portions of them 23, 25 a resilient ring 22 to permit radial movement for self-centring of the bearing. The ring is shown in Fig. 3, and is made of plastics material with inwardly projecting webs 35. The bearing shown has a non-rotating inner race 11 to which thrust is transmitted from the sleeve 1 through a plastics ring 8, although the outer race may be the non-rotating race, the ring 22 being between this race and the sleeve 1 (Fig. 2, not shown). In two further embodiments (Figs. 4 and 5, not shown) a flat is formed on the non- rotating race (the inner) which co-operates with a flat of the sleeve 1 to prevent the rotation of this race.
Patent GB-1171178-A (GB)
Title: Flexible Bellows Arrangements
Inventor: STOCK FREDERICK ERNEST
IPC: G01M3/00
Filed: 1966-12-21
Abstract: 1,171,178. Testing fluid tightness. ENGLISH ELECTRIC CO. Ltd. Dec. 19, 1967 [Dec. 21, 1966], No. 57255/66. Heading G1S. In a sealing arrangement comprising a bellows 1 composed of strips 2, 3 attached by flanges to relatively movable members e.g. in a turbine, water pressure in the passage 4 through the bellows is maintained at a different pressure to that of fluid acting on either side of the bellows, by means of regulator valves 14, 19, such that any leaks of the bellows walls are detected by pressure changes determined by a gauge 22. The bellows may be annular, or formed as segments connected together by a fluid proof zip fastener arrangement.
Patent GB-1417878-A (GB)
Title: Benzyl and -benzyl- benzylanthraquinones
IPC: C07C46/02
Filed: 1973-12-13
Abstract: 1417878 Anthraquinone derivatives GENERAL ELECTRIC CO 13 Dec 1973 [11 Jan 1973] 57713/73 Heading C2C [Also in Division C5] The invention comprises benzyl anthraquinone and benzylbenzyl anthraquinone. The compounds are prepared by reacting 9,10-dihydroanthracene with benzyl or benzybenzyl alcohol or chloride and oxidizing the product with nitric acid.
Patent GB-1375007-A (GB)
IPC: G03H1/04
Filed: 1971-12-13
Abstract: 1375007 Photographic materials and their use in producing diffraction gratings by holography XEROX CORP 13 Dec 1971 [14 Dec 1970] 57762/71 Headings G2C and G2X A photographic material comprises a polymeric binder containing styrene units chemically bound thereto, Auramine O and a peroxide such that when the material is imagewise exposed to radiation (e.g. ultra-violet or visible light) which is absorbed by the material, the exposed areas are bleached and also change their refractive index. It appears that the change in refractive index is due to the formation of styrene (caused by the decomposition of Auramine O) which grafts on to the polymer. Specified polymers are styrene/isobutyl methacrylate copolymer and a styrene/ester copolymer. The sensitivity of the material may be extended adding dyes which absorb in different areas of visible spectrum than Auramine O. Generally, the polymer, Auramine O and peroxide are coated on a support and the material cured at 80C before exposure to a collimated laser beam split into 2 beams to produce a diffraction grating due to the interference pattern created by the two wavefronts. The angle of intersection of the 2 beams may be varied from a few degrees to nearly 180 degrees.
Patent GB-1208120-A (GB)
Title: Ethylene polymerisation
Inventor: BALLARD DENNIS GEORGE HAROLD
IPC: C08F4/12
Filed: 1968-02-01
Abstract: 1,208,120. Continuous ethylene polymerization in at least two zones. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Jan., 1969 [1 Feb., 1968], No.57910/67. Heading C3P. Ethylene is continuously polymerized in two or more reaction zones, wherein a pressure of at least 1600 atmospheres is used in each zone, a temperature of at least 125‹ C. is used in the first zone, a #-allylic transition metal compound is used as catalyst in the first zone while a freeradical initiator is used in the second zone, and the temperature and pressure conditions are such that the reaction mixture exists as a single fluid phase in each zone. An organic halide may be added to the #-allylic compound and a chain transfer agent, e.g. hydrogen, may be present in either zone. #-Allylic compounds of zirconium are preferred and in the examples zirconium tetrakis #-allyl dissolved in isooctane or tetralin is used in the first zone and t-butylperbenzoate is used in the second zone, with allyl- or propargyl bromide.
Patent GB-1286005-A (GB)
Title: Catalyst regeneration
IPC: C07C67/00
Filed: 1969-11-28
Abstract: 1286005 Oxychlorination process STAUFFER CHEMICAL CO 28 Nov 1969 [19 Dec 1968] 58214/69 Heading C2C The invention comprises, in a process for the oxychlorination of hydrocarbons in a reaction zone containing a copper catalyst maintained under oxychlorination reaction conditions wherein a gaseous mixture comprising a hydrocarbon having 1-4 carbon atoms, a chlorinating agent selected from hydrogen chloride, chlorine or a mixture thereof, an oxygencontaining gas, and sulphur-containing compounds which progressively deactivate the catalyst is fed to the reaction zone; an improvement which comprises discontinuing the flow of oxygen-containing gas while maintaining the catalyst-containing zone under oxychlorination reaction conditions for a period of time sufficient to reactivate the catalyst.
Patent GB-1292551-A (GB)
Title: Quinoxaline derivatives and a process for the manufacture thereof
IPC: C07D241/52
Filed: 1970-12-10
Abstract: 1292551 Quinoxaline di-N-oxide derivatives F HOFFMANN-LA ROCHE & CO AG 10 Dec 1970 [12 Dec 1969] 58719/70 Heading C2C Novel compounds of the general Formula I wherein R 1  is hydrogen, halogen, C 1-6  alkyl or C 1-6  alkoxy; R 2  is hydrogen, halogen, C 1-6  alkanoyloxy, aroyloxy, heterocyclylcarbonyloxy or heterocyclylcarbonylthio (wherein these groups are those which contain nitrogen, oxygen and/or sulphur in the ring and are derived from carboxylic acids wherein the carboxylic group is attached directly to the heterocyclic ring, the acids having up' to 10 carbon atoms in or directly attached to the ring), C 1-6  alkanoylthio or aroylthio wherein aroyl is derived from a carboxylic acid having up to 11 carbon atoms, R 3  is hydrogen or C 1-6  alkyl, n is 2 to 5 and X is C 1-6  alkoxy, C 1-6  alkylthio, di-C 1-6  alkylamino or a monocyclic 5- to 6-membered saturated heterocyclic amino group which may contain an additional nitrogen atom or an oxygen or sulphur atom may be prepared by (a) oxidation of a quinoxaline II or an N-monoxide thereof; (b) esterifying a quinoxaline N-dioxide carboxylic acid III or a reactive functional derivative thereof with an ester (c) when R 2  is hydrogen, reacting a benzofurazan oxide V with a compound VI wherein R 4  and R 5  each are hydrogen or C 1-6  alkyl or R 4  and R 5  together with the nitrogen to which they are attached represent pyrrolidino, piperidino or morpholino; and if desired (d) transesterifying the product obtained or where R 2  is hydrogen, replacing it with halogen and optionally replacing the halogen with C 1-6  alkanoyloxy, aroyloxy, heterocyclylcarbonyloxy, C 1-6  alkanoylthio, aroylthio or heterocyclylcarbonylthio. The novel compounds II may be prepared by reacting an o-phenylenediamine with an ether ester of (a) 2,3-dioxobutyric acid, (b) 2-hydroxy- 3 - oxo - butyric acid or (c) 2 - oxo - 3 - hydroxybutyric acid. The compounds of the Formula VI may be formed by reacting a ketone VII with ammonia or an appropriate primary or secondary amine. The compounds of the Formula VII may be prepared by reacting an appropriate ether alcohol derivative with diketene. Pharmaceutical compositions of the compounds I show bacteria pathogenic properties when administered orally or parenterally with the usual excipients.
Patent GB-1285616-A (GB)
Title: Method and apparatus for determining the maturity of fruit
IPC: G01N33/02
Filed: 1969-12-02
Abstract: 1285616 Electro-chemical analysts LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT 2 Dec 1969 [2 Dec 1968] 58730/69 Heading G1N The ripeness of e.g. apples and pears is determined by measuring the amount of carbon dioxide emitted per 24 hours per kilo of fruit. As described apples are placed on a perforated plate, in a container, above caustic soda or potash solution and the conductivity of the solution is compared with that measured 24 hours later. Empirical calibration enables the ripeness of the fruit to be assessed.
Patent GB-1374640-A (GB)
Title: Fibril process
IPC: D01D5/40
Filed: 1972-12-20
Abstract: 1374640 Paper made from polyolefin fibrils GULF RESEARCH & DEVELOPMENT CO 20 Dec 1972 [23 Dec 1971] 58789/72 Heading D2B [Also in Division B5] Fibrils of polyolefin, preferably polyethylene, suitable for making paper-like materials are obtained by subjecting a solution of the polymer to shearing forces, cooling it to precipitate the polymer in the form of a solventswollen strand which is then chopped into appropriate lengths and beaten in a liquid which is a non-solvent for the polymer but miscible with the solvent. The fibrils are then recovered. These fibrils may be made into paper by conventional means; the process of preparation however, will be varied according to the means used. Thus, if the paper is to be made by water-laying, the beating liquid is preferably isopropanol, but if the laying liquid is to be a hydrocarbon, then the beating liquid is preferably one as well.
Patent GB-1414158-A (GB)
Title: Electrostatic development
IPC: G03G9/08
Filed: 1972-12-20
Abstract: 1414158 Toner particles XEROX CORP 20 Dec 1972 [30 Dec 1971] 58824/72 Headings C3P C3T C3G and C3R [Also in Division G2] Toner particles for developing an electrostatic latent image comprise at least one deformable polymer encapsulated in a matrix of a tough polymer, the polymer being encapsulated in the form of a plurality of discrete domains within each particle. The latter requirement is achieved by including a block or graft copolymer containing segments of each polymer to provide the appropriate degree of compatibility. The toner particles suitably contain a colorant and may be used in conventional manner for developing latent images, typically with the use of carrier. In the examples, the following polymer mixtures in a solvent containing also carbon black are spray-dried to form a toner, which is combined with glass beads to obtain a developer and the latter used in developing an electrostatic latent image by the cascade method, the image being fixed by the application of pressure; caprolactone - b - styrene - b - caprolactone, vinylacetate - b - styrene, ethylene oxideb - styrene - b - ethylene oxide, dimethylsiloxane - b - styrene - b - dimethyl siloxane, polyester-polystyrene block copolymer, bisphenol A polycarbonate-polydimethylsiloxane block copolymer, polyhexamethylene sebacatepolystyrene, block copolymer, polybutadienepolystyrene graft copolymer, and caprolacetoneb - styrene - co - butyl methacrylate mixed with the corresponding homopolymers in each case, and a styrene-butadiene block copolymer with polystyrene and a tackifying agent.