baber/WOPTO huggingface dataset:
Patent GB-1431550-A (GB)
Title: Disperse monoazo dyestuffs
IPC: C09B29/08
Filed: 1972-11-01
Abstract: 1431550 Disperse monoazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Oct 1973 [1 Nov 1972] 50307/72 Heading C4P Novel monoazo disperse dyes which are free from SO 3 H groups and additional COOH groups and which have the Formula I where A is C 2-6  alkylene, R is optionally substituted C 1-4  alkyl or -ACOOH, X and Y are each H, Cl, Br, C 1-4  alkyl or C 1-4  alkoxy and Z is H, Cl, Br, C 1-4  alkylsulphonyl, arylsulphonyl, alkoxycarbonyl or aryloxy carbonyl may be prepared by azo coupling. The dyes of Formula I give shades ranging from yellowish-red to greenish-blue on aromatic polyester materials.
Patent GB-1514579-A (GB)
Title: Expandable fastener
IPC: F16B13/06
Filed: 1975-12-08
Abstract: 1514579 Anchor bolts TELEFONAKTIEBOLAGET L M ERICSSON 8 Dec 1975 [11 Dec 1974] 50309/75 Heading F2H An anchor bolt 1 having a rearwardly tapering portion 3 near its forward end carries a sleeve 7 having at its forward end a plurality of tongues 10 some of which are longer than others, the sleeve being expanded by drawing into it the tapered portion 3 of the bolt. The sleeve 7 has a longitudinal slit 8, and notches 11 at its rear end. The tongues 10 have pointed tips. The sleeve is of non-circular, e.g. oval, cross-section along part of its length and fits round a cylindrical portion 5 of the bolt having a smaller diameter than the main shank and adjoining the small end of the tapered portion 3. The tapered portion 3 has a cone angle v between 22 and 25 degrees, preferably 22À5 degrees.
Patent GB-1467430-A (GB)
Title: Preparation of benzoquinone
IPC: C25B3/23
Filed: 1974-10-24
Abstract: 1467430 Benzoquinone KODAK Ltd 24 Oct 1974 [30 Oct 1973] 50334/73 Heading C2C Benzine is converted to benzoquinone by subjecting an aqueous medium containing an acidic electrolyte, benzene and silver, cupric or mercuric sulphate to electrochemical oxidation in an electrolytic cell.
Patent GB-1459176-A (GB)
Title: Overcurrent protective apparatus for a power circuit
IPC: H02H3/34
Filed: 1972-11-01
Abstract: 1459176 Electromagnetic relays SQUARE D CO 31 Jan 1974 [1 Nov 1972] 50351/72 Heading H1N [Also in Division H2] An electromagnetic relay whose contacts open when its coil 48 is excited comprises a movable blade A fixed at one end to a terminal 19 and carries at its free end a contact stud G which can contact a fixed contact B fixed to a further terminal 19, and carries a leaf spring F which provides an over-centre movement of the blade about a tongue C integrally formed with the blade. The tongue C extends in an aperture of the blade A and is secured to the armature D of the relay co-operating with yoke E carrying the relay coil. A stop J may be positioned to limit the movement of the blade away from the fixed contact B for automatic reclosing of the contacts, whereas for manual reclosing the stop is positioned so far from contact B that blade A remains in contact with stop J after release of the armature. It is arranged that the armature remains held, after operation, by remanent magnetism and is released by passage of a demagnetizing current through the coil.
Patent GB-1104118-A (GB)
Title: Thermal transfer device
IPC: H01L35/00
Filed: 1965-11-29
Abstract: 1,104,118. Semi-conductor devices. COMPAGNIE GENERALE D'ELECTRICITE. 29 Nov., 1965 [3 Dec., 1964], No. 50657/65. Heading H1K. [Also in Division H3] In a delay device, the input signal is applied to a heating resistor which is thermally connected by respective paths of different thermal capacitances to two sides of a thermoelectric generator which produces the output signal. As shown, a PN thermoelectric device 3, 4 is formed by diffusion in a block 2 of N-type silicon which provides a thermal path of large thermal capacitance from a heating resistor 6 to one side of the thermoelectric device, a low-capacitance path to the other side being provided by a layer 8 of beryllium oxide. A layer 1 of silica protects the upper surface of the silicon block 2.
Patent GB-1103480-A (GB)
Title: Method and means for preventing the deposit of vapour condensation and rime on windows and windshields
IPC: B60S1/54
Filed: 1966-11-14
Abstract: 1,103,480. Preventing condensation in double glazed panes. F. LEVY. 14, Nov., 1966 [22, Nov., 1965], No. 51020/66. Heading E1R, [Also in Division F4] The deposit of atmospheric vapour condensation and rime on double glazed windows or windscreens of vehicles aircraft airport control towers, shops &c., is prevented by circulating a stream of air through the space between the panes 6, 6a of a windscreen &c. then along a conduit 1 through a heater 2, a cooler 3 (see Division F4) and a heater 4 in succession and back through a conduit 5 to the space between the panes. The heater 4 is insulated from the external atmosphere. The circulation of the air may be aided by a fan 10.
Patent GB-1387259-A (GB)
Title: Resilient mountings
IPC: D06F37/20
Filed: 1970-10-28
Abstract: 1387259 Washing machines HOOVER LTD 27 Jan 1972 [28 Oct 1970] 51209/70 Heading D1A [Also in Divisions F2 and F4] A member 10 (which may be a strut of the at least one spring damper unit or a compression-spring guide for supporting the container of a clothes drum in a machine for washing, for centrifugal extraction or for both), is mounted for tilting, by extending through a hole in a plate (such as a bracket 11 of the machine casing) facing abutment surfaces provided by washers 17 and 22 on the member 10, a resilient (rubber) block 23 providing resilient portions around the member 10 between one abutment surface and the plate 11 and an incompressible (nylon) collar 16 having an arcuate surface received by a complementary arcuate surface 15 on the plate 11 as shown, or on the other abutment surface, on washer 17. A nut 25 clamps the washers 17, 22 against a sleeve 19 and compresses the rubber block 23. There may be a relief on the block to receive the bush and its seat. The mounting may be used at either end or both ends of a strut. A mounting, instead of having a circular block 23 as shown, may have a block of elongate form extending transversely of a strut 10 and which, like that described in Specification 1387258, is wider in plan at one end than the other (with the backing washer being of the same shape and area) so that tilting in one direction is subject to greater restraint in one direction than in the opposite direction. The strut may act as a damper strut or guide rod as described in Specification 1355177.
Patent GB-1208465-A (GB)
Title: A process for manufacturing paper for cigarette filters
Inventor: SIMONIDES JAN
IPC: A24D3/16
Filed: 1968-10-29
Abstract: 1,208,465. Tobacco smoke filters. CESKOSLOVENSKA AKADEMIE VED. 29 Oct., 1968 [9 Nov., 1967], No. 51215/68. Heading A2C. [Also in Division D2] A cigarette filter is manufactured from paper containing particles of silica gel and active carbon. Preferably the particles comprise an active carbon-bearing silica gel matrix of particle size from 30 to 300 microns. The paper may be creped, crosscreped or brushed.
Patent GB-1163429-A (GB)
Title: Photographic Silver Halide Emulsions, Light-Sensitive Materials and process of Colour Development
IPC: G03C7/392
Filed: 1966-11-17
Abstract: 1,163,429. Silver halide emulsion and colour developing process. EASTMAN KODAK CO. Nov.17, 1966 [Nov.18, 1965], No.51518/66. Heading G2C. Multi-layer colour photographic silver halide materials having as the green-sensitive layer a silver halide emulsion supersensitized by the presence therein of an oxacarbocyanine having not more than one phenyl or alkyl substituent on the benzene rings of the benzoxazole groups and a benzimidazolo carbocyanine as described in Specification 1,111,045 are developed by means of ap-phenylenediamine colour developer in the presence of a thioether silver halide chemical sensitizer as described in Specification 1, 016, 824. The chemical sensitizer may be present in the green-sensitive layer or layer of the multi-layer material adjacent thereto or in the colour developer. Many sensitizers are listed and are preferably polymeric sulphides.
Patent GB-1064619-A (GB)
Title: Improvements in or relating to surface hardened composite metal articles
IPC: C22C29/02
Filed: 1965-12-07
Abstract: A metal article, e.g. a die nib or a thread gauge, is made of a material consisting of 25-80% by volume of refractory metal carbide grains distributed throughout a nitridable steel matrix; the article is treated so that the microstructure at least adjacent the surface consists of carbide grains anchored in nitrided steel and suitable refractory carbides include carbides of Cr, W, Mo, Ti, Zr, Hf, Nb, Ta, and V and suitable steels are specified.  A die nib made of a material consisting of 40% by weight TiC and 60% by weight steel (containing 1.25% Cr, 2.5% Mo, 0.4%C) is produced by pressing a mixture of the components at 15 ton/in2 and vacuum sintering at 1435 DEG C. for 1/2 hour. The nib so formed is annealed at 900 DEG C. for 2 hours, cooled at 15 DEG  C./hour to 100 DEG C., machined, austenitized at 980 DEG C. and oil quenched; after cleaning it is nitrided in ammonia at 500650 DEG C. Alternatively, a nitriding salt bath comprising 60-70% of a sodium salt comprising 96.5% NaCN, 2.5%N2CO3, 0.5% KCl and 30-40% of a potassium salt comprising 96% KCN, 0.75% KCNO, 0.5% KCl 0.6% Na2CO3 may be used.  Production of a thread gauge having a stainless steel matrix and a hot swaging die consisting WC-TiC grains distributed in a high speed steel matrix is also described.
Patent GB-1201789-A (GB)
Title: Process for the recovery of sulfur dioxide
IPC: B01D53/77
Filed: 1967-11-15
Abstract: 1,201,789. Recovery of sulphur dioxide. WELLMAN-LORD Inc. 15 Nov., 1967 [15 Nov., 1966; 16 Feb., 1967], No. 51988/67. Heading C1A. Sulphur dioxide is recovered from gases containing it by contacting the gas with aqueous K 2 SO 3  to give KHSO 3  and other by-products which serve to lower the partial-pressure of SO 2  over the bisulphite solution, separating the KHSO 3  from the partial-pressure lowering salts, and heating the purified KHSO 3 , either as such or as K 2 S 2 O 5 , to produce SO 2 . In Fig. 1, SO 2 - bearing flue gas is absorbed in reactor 10 in K 2 SO 3  from 16 and KHSO 3  solution passes through line 18, the filter, and line 24 to crystallizer 25 (equipped with recycle pump 28) wherein the solution is cooled, e.g. below 110 F., so that a slurry of K 2 S 2 O 5  crystals is formed, a part of which is drawn off through line 30 to. centrifuge 32 wherein the crystals are separated for passing to drier-desorber 36 and heated to decomposition temperature therein so that moist SO 2  passes to still 40, whence water is removed via line 48, and SO 2  passes through line 42, compressor 44 and heat-exchanger 45 to give product liquid SO 2 . Water from still 40 and solution in line 34 from centrifuge 32 pass to tank 50 together with K 2 SO 3  from 36 to give a solution which is recycled to reactor 10, after addition of make-up water and sulphite as necessary. K 2 SO 4  may be removed from the crystals in line 52 by diverting the stream at valve 62 into dissolver 64 to which is added just enough water to dissolve only the K 2 S 2 O 5  so that K 2 SO 4  may be separated in centrifuge 74 and dried at 78, whilst the pyrosulphite is fed to tank 50.
Patent GB-1333751-A (GB)
Title: Polymerisation of cycloolefines
IPC: C08F4/78
Filed: 1970-11-04
Abstract: 1333751 Polymerization of cyclo-olefins BAYER AG 4 Nov 1970 [13 Nov 1969] 52425/70 Heading C3P The ring-opening polymerization of unsaturated alicyclic compounds is carried out using a catalyst comprising a tungsten compound and an organo-aluminium compound in an inert organic solvent, the polymerization solution containing 5 to 50 p.p.m. of water and the catalyst also including an epoxide, a #-haloalcohol or a mono- or di-halophenol. The examples describe the polymerization of cyclopentene, possibly containing α-olefins as impurities, in moist toluene using catalysts comprising diethyl aluminium chloride and the reaction products of WCl 6  with 2-chloroethanol or epichlorhydrin. The products contain predominantly trans double bonds. Reference has been directed by the Comptroller to Specifications 1,062,367 and 1,124,456.
Patent GB-1086750-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04B7/02
Filed: 1964-12-30
Abstract: 1,086,750. Radio receiving systems; muting; data transmission. L. R. KAHN. Dec. 30, 1964 [Jan. 7, 1964], No. 52802/64. Headings H3Q, H4L and H4P. In a wideband receiver for receiving narrowband signals, particularly for use in a mobile radio communication system subject to oscillator frequency drift or Doppler shift, in order to improve the signal-to-noise ratio, the receiver passband is separated into a number of segments as by a parallel array of bandpass filters. The signal energy is in only a part of the receiver passband but the noise energy is distributed substantially uniformly in the passband and means are provided for selecting as the output only a part of the segments, normally that part providing the greatest energy level. This signal is used to provide a squelch control voltage to render the receiver fully sensitive only when the energy level in said part is substantially greater than the energy level in the other segments. If desired, the next highest or any other desired output level may be selected manually, groups of diode detector and gating circuits being crossconnected so that they are biased to provide the various signals in their order of priority, Fig. 4 (not shown). As shown in Fig. 5, the output of the wideband amplifier is supplied to bandpass filters D 1 , D 2 , D n , the strongest signal passing via the appropriate detector diode 82, 84 or 86 to the output circuit 42A, the D.C. component back-biasing the remaining diodes. With no signal input the average currents through each of the resistors 88, 90, 92 are equal and of low value and are insufficient to operate the squelch control circuit including diodes 178, 180, 182. When a signal of sufficiently large amplitude is received all the current passing through the output load resistor 96 passes through only one of the resistors 88, 90 or 92 so that only the corresponding diode 178, 180 or 182 will conduct to make normally non-conductive valve 184 conduct and normally conductive valve 186 non-conductive. This de-energizes relay 188 so that its contacts change over to the " receiver sensitive " position. The application of the system to a receiver for frequencyshift keyed signals is described, Fig. 6 (not shown). The strongest signal is selected from bandpass filters (D<SP>1</SP> 1 , D<SP>1</SP> 2 , D<SP>1</SP> n ,) as before and supplied via resonant circuit (202, 204) tuned to the I.F., to a discriminator (212). The discriminator produces an output voltage which is more positive for a mark signal and less positive for a space. A portion of the discriminator output is fed to the " automatic threshold adjust circuit" (216) comprising a pair of oppositely poled diodes, Fig. 7 (not shown), producing an average of the mark and space voltages for application to the threshold circuit (220) to compensate for frequency drift of the incoming signal.
Patent GB-1417566-A (GB)
Title: Magnetic devices
IPC: G11C11/14
Filed: 1972-11-22
Abstract: 1417566 Magnetic storage arrangements WESTERN ELECTRIC CO Inc 22 Nov 1972 [24 Nov 1971] 53927/72 Heading H3B To enhance the response of a magnetoresistive detector 20 in a moving single-wall domain system, a domain approaching the detector is elongated in a direction transverse of the propagation path by a chevron propagation pattern of magnetically-soft elements 16 arranged so that their total in any stage increases with nearness to the detector, the domain being reduced to its original size after detection by progressive reduction of the number of elements in the stages following the detector. The magneto-resistive detector may comprise a permalloy strip formed with the magnetically-soft elements in a single photo-resist process, and may connect the apices of the readout stage of the chevron pattern. The system may include a feedback path 40 for recirculating detected domains: The return path for the detector to a utilization circuit 22 may be through a similar permalloy strip associated with a propagation stage having fewer chevrons, Fig. 3 (not shown). The detector may be pulsed periodically for read-out at selected times. Domain propagation is effected by an in-plane magnetic field 18.
Patent GB-1360586-A (GB)
Title: Disc brakes
IPC: F16D55/228
Filed: 1972-11-22
Abstract: 1360586 Mounting pads of spot-type disc brakes; noise prevention SUMITOMO ELEC TRIC INDUSTRIES Ltd 22 Nov 1972 [25 Nov 1971] 54020/72 Heading F2E In a spot-type disc brake where an hydraulically operated piston and cylinder mechanism is mounted in each of the opposing legs of a caliper straddling a portion of the disc, and a circular Friction pad bonded to a backing plate is interposed between each piston and the appropriate braking face of the disc, each backing plate 4 has a tab 6 projecting radially from it and slidably received in a groove 3 provided in the appropriate leg of the caliper; means for preventing "flutter" of the pad is secured to the rear face of the pad and has a member urging the tab towards a wall of the groove. As shown, the above-mentioned means comprises a semicircular plate 18 (e.g. of steel 0-3 mm. thick) having a radially-projecting resilient member 9, a portion 14 of which is stepped to fit into a recess 15 in backing plate 4, and has integral with it a resilient finger plate 16 orientated at right angles to the remainder of the member 9. As shown, the resilient finger plate 16 is corrugated, and in use bears against tab 6 to urge it towards a wall 5 of groove 3 under the influence of braking torque (see the dotted arrow in Fig. 4). All noises are thereby eliminated.
Patent GB-1160378-A (GB)
Title: Improvements relating to Heated Godets.
IPC: H05B6/14
Filed: 1966-12-02
Abstract: 1160378 Internally heated hollow godets BARMAG BARMER MASCHINENFABRIK A G 2 Dec 1966 [3 Dec 1965] 54086/66 Heading B5B [Also in Divisions D1 and F2] A hollow godet adapted to be maintained at a predetermined elevated temperature has arranged inside it a stationary heating unit which is concentric with the axis of rotation of the godet, closely spaced from the internal surfaces of the godet and fixed to a machine frame. The endface of the godet nearest the machine frame is provided with an annular groove or channel concentric with the axis of rotation of the godet and a stationary heat-sensing element is fixed to the machine frame and projects into the groove far enough to be located in that portion of the peripheral wall of the godet which is directly heated by the heating unit, but does not touch the godet. The heat-sensing element may be connected to a separate heat controller fixed to the machine frame. The heating unit may be an electric inductive heating coil which inductively heats the godet the peripheral wall of which consists of an electrically conductive material such as a metal, the heat-sensing element projecting into the field of force of the heating coil.
Patent GB-1119150-A (GB)
Title: Improvements in information retrieval from optical coincidence cards
Inventor: BRACHEL HANSWILLI VON
IPC: G06K21/02
Filed: 1966-12-02
Abstract: 1,119,150. Information retrieved from feature cards. CASSELLA FARBWERKE MAINKUR A.G. 2 Dec., 1966 [3 Dec., 1965], No. 54122/66. Heading G4M. A pack of feature cards is photographed on successive portions of a continuous film to form card images in which the punchings of the feature cards appear as dark areas on a light ground, and, to retrieve information, a single photographic print is made by superimposing the images of selected cards on the film. If the pack of feature cards comprises more than one series, i.e. there is more than one card for each feature because the number of items indexed exceeds the capacity of a card, all the cards from the different series which relate to the same feature may be grouped together and photographed in a single exposure of the film, whereby, in subsequent retrieval operations, all the series may be processed together. The feature cards may be photographed by transmitted light to form the film directly, or photographed on a dark ground followed by reversal development or re-printing of the film.
Patent GB-1414516-A (GB)
Title: Apparatus particularly designed for carrying out exothermic  chemical reactions
IPC: B01J19/00
Filed: 1972-11-23
Abstract: 1414516 Oligomerization reactor; cooling exothermic reactions INSTITUT FRANCAIS DU PETROLE 23 Nov 1972 [26 Nov 1971] 54245/72 Headings B1F and B1X [Also in Division C5] In an apparatus, Fig. 1, for an exothermic oligomerization reaction, propylene is dimerised to iso-hexenes by passing a mixture containing 5% propane and catalyst through inlet 15 into reactor 14 where it is recycled through cooler 18 and the mixture is then passed via conduit 10 to chamber 1 where the mixture flows through a structure comprising baffle plates 2-9 e.g. welded "L" shaped iron pieces, which meet each other to form a folded or convoluted enclosed duct e.g. with a cross section as shown in Fig. 2.
Patent GB-1186015-A (GB)
Title: Delivery Guide Device for Stranding Machines
Inventor: MARTINEZ MARIO
IPC: D07B7/02
Filed: 1967-11-29
Abstract: 1,186,015. Delivery guides for stranding machines. M. MARTINEZ. 14 Oct., 1968 [29 Nov., 1967], No. 54365/67: Heading D1T: A delivery guide device for a stranding machine comprises a substantially oval member 10 adapted to be supported at one end on a rotatable part 13 of a stranding machine, the outer surface of the oval 10 being provided with a plurality of guides for guiding the wires 24, 26 into a closing die 27. There may be a central guide sleeve 16 for a core wire 17. At its delivery end the oval member 10 may be surrounded by a curved member 19 over which wires to form a further layer about the first core covering layer pass, the curved member 19 being provided with grooves 22 for this purpose. Straps 23 prevent the wires from jumping out of the grooves. The guide device is stated to be suitable for use with the stranding machine described in Specification 1,175,589.
Patent GB-1337208-A (GB)
Title: Friction welding machine
IPC: B23K20/12
Filed: 1971-11-25
Abstract: 1337208 Welding by pressure GENERAL MOTORS CORP 25 Nov 1971 [27 Nov 1970] 54733/71 Heading B3R A friction welding machine comprises a first workpiece holder and a second workpiece holder linearly movable relative to the first holder, a drive means to rotate the first holder relatively to the second holder and an outer workpiece support member mounted on the second holder adjacent the outer periphery of the second holder for limited rotary movement relative to the second holder. A head member 14 is secured to a motor driven spindle 12 by drive keys and bolts 16 and an adapter 18 is secured to the head member by drive key 20 and bolts 22. The adapter has a polygonal drive socket 24 into which the polygonal extension 26 of the hub 28 of a gas turbine rotor fits, a pilot member 30 projecting from the member 14 into the hub 28 and carrying a spring detent 32 to retain the hub in position. A tailstock 34 is fixed against rotation but is free for axial movement and carries a fixture 36 which includes an adapter 40 keyed and bolted to the tail stock and a holder 44 keyed and bolted to the adapter. The holder 44 has a polygonal socket 50 which receives the polygonal shoulder 51 of a nickel alloy bladed turbine ring 38. A shroud 54 in three separate segments is supported for limited rotation in a groove formed by an annular clamp member 68 and a retainer ring 57 clamped by a ring 58 to the adapter 40. A number of arms 72 bolted to the member 68 each carries a block 74 of elastomeric material to provide axial support for the blades. The weld interface is frusto-conical and during welding the forces involved cause the tips of the blades to contact the ring 54 which is free to move rotationally and thus transmits no tangential forces.