baber/WOPTO huggingface dataset:
Patent GB-1353440-A (GB)
Title: Press fastener
IPC: A44B17/00
Filed: 1972-12-12
Abstract: 1353440 Stud and socket fastenings A RAYMOND 12 Dec 1972 [22 Dec 1971] 57375/72 Heading E2B  A press fastener comprises a resilient socket member 11 and a stud member 14 each of which comprises a base part and a rivet shank 3, 24 to pierce a flexible web 4, 4a and to penetrate into an opening in a second part, the resilient socket or stud wherein it is secured by shaping an end of the rivet, the socket member having a portion 10 of reduced thickness surrounding the socket, the stud and socket both having intersecting frusto conical surfaces 20a, 13a and chamfers 21, 13, the slopes of which determine the closing pressure necessary to secure the fastener members. The edges 9a and 20 may be slit to increase the resiliency of the socket and stud members.
Patent GB-1398696-A (GB)
Title: Process for the production of dimethyl ether
IPC: C07C67/00
Filed: 1973-12-11
Abstract: 1398696 Dimethyl ether synthesis SNAM PROGETTI SpA 11 Dec 1973 [20 Dec 1972] 57443/73 Heading C2C Dimethyl ether is synthesized by reacting CO, CO 2  and H 2  in the presence of a catalytic body comprising a methanol synthesis catalyst and a methanol dehydration catalyst. In an example, the catalyst used is Cu/Zn/Cr in the atomic proportions 82/16/4 on alumina.
Patent GB-1379611-A (GB)
Title: Process for the dyeing or printing and simultaneous finishing of  cellulose materials
IPC: C09B1/46
Filed: 1971-12-22
Abstract: 1379611 Dyeing cellulosic materials CIBAGEIGY AG 22 Dec 1971 [23 Dec 1970 4 Oct 1971] 59677/71 Heading D1B Preparations which contain (a) a dye of formula in which D is a radical of an azo or antraquinone dye, X is a number from 1 to 4, R is hydrogen or a lower (i.e. C 1  to C 4 ) E is -N= -CH= or #C-N-(ZOH) 2  in which each Z is an alkylene radical of 2 to 5 carbon atoms and n is 1 or 2, (b) a synthetic resinforming intermediate product or an aminoplast which is soluble or at least dispersible in water, (c) an acid catalyst and (d) optionally further additives, are used in the dyeing and printing and simultaneous finishing of cellulose material which is impregnated or printed with aqueous liquor or liquors containing the above ingredients followed by drying or storing the material at room temperature followed by subjecting the material to a treatment at elevated temperature followed by optionally washing. Preferably 10 to 100 g/1 of dye are used with 50 to 300 g/1 of synthetic resin intermediate heating 'being at 100 to 220‹C for 30 seconds to 30 minutes. The aminoplast may be an addition product of formaldehyde with a 1,3,5- aminotriazine, oxydiaminotriazine, dioxyaminotriazine, triazone, guanamine, urea or thiourea.
Patent GB-1378867-A (GB)
Title: Photocrosslinkable compositions and elements containing heterocyclic  nitrogen-containing compounds
IPC: H05K3/38
Filed: 1971-12-22
Abstract: 1378867 Photocrosslinkable polymer compositions E I DU PONT DE NEMOURS & CO 22 Dec 1971 [23 Dec 1970] 59685/71 Headings C3P and C3R [Also in Divisions G2 C7 and H1] A photocrosslinkable composition comprises a photosenstive organic polymer which uniformly cross-links upon exposure to actinic radiation but which is incapable of linear addition polymerization and up to 1% by weight of a heterocyclic nitrogen containing compound of the formula where R is an optionally substituted ortho divalent aromatic hydrocarbon group, X is CH 2 , NH, NCl, S, O or Se and Z is N or CY where Y is H, NH 2 , a C 1 -C 4  alkyl radical or halogen, the amount of the heterocyclic compound being based on the weight of the composition excluding the heterocyclic compound and being determined on a dry weight basis where "dry" indicates the condition of the composition at the time when it is processed to form a resist. The mixture may contain light sensitive initiators, e.g. azides, diazo compounds or metal dichromates. The heterocyclic compound improves the adhesion of the composition to substrates. In the examples one of benzotriazole, 1-chlorobenzotriazole, benzimidazole, 5-methylbenzimidazole, 2-aminobenzimidazole, 2- methylbenzimidazole or 5-nitrobenzimidazole is added to a mixture of one of the following polymers, polyvinyl cinnamate, polyvinyl alcohol, diallylisophthalate prepolymer, a polyamide (prepared from methyl linolenate and ethylene diamine), polyvinyl anisyl acetophenone (prepared by reacting polystyrene with acetyl chloride then with anisaldehyde), or a mixture of the prepolymer with polymethylmethacrylate with one or more of methyl ethyl ketone, triethylene glycol diacetate, xylene, isopropanol, water and ethylene glycol and one of 2-t-butyl-anthraquinone 4,41- bisdimethylamino benzophenone, ammonium dichromate and disodium 4,4<SP>1</SP>-diazidostilbene and the resulting composition is applied to a substrate and exposed imagewise.
Patent GB-1449295-A (GB)
Title: Device for suspending condensers
IPC: F16B2/22
Filed: 1973-12-27
Abstract: 1449295 Clips ERDI SARL 27 Dec 1973 [29 Dec 1972] 59881/73 Heading E2B A device for suspending a condenser comprises a ring 1 for surrounding the condenser, a suspension hook 2 and two straps 3a, 3b extending in opposite directions parallel to the axis of the ring. An end portion of each strap extends at right angles to the strap for bearing upon an end face of the condenser to prevent longitudinal sliding thereof. The device may be made of a resilient plastics and the inner surface of the ring and hook may have ribs 5, 6, The end portions may be turned through a further right angle in order to retain each end of the condenser securely. The device may be suspended from a wire or cable by the hook 2 to support the condenser in electrical equipment of a vehicle.
Patent GB-1284460-A (GB)
Title: Coating compositions
Inventor: GUESTAUX CLAUDE
IPC: G03C1/825
Filed: 1969-12-11
Abstract: 1284460 Carbon black dispersion EASTMAN KODAK CO 11 Dec 1969 [11 Dec 1968] 60592/69 Heading C1A [Also in Division G2] A carbon black dispersion comprises an alkaline solution of an alkali-soluble polymer in which is dispersed carbon black having an Absorption Index for dibutyl phthalate from 100 to 200 ml./100 grams, a specific surface of about 200 square metres per gram and a resistivity from 10 to 150 ohm. cm. The preferred particle diameter is from 15 to 40 nm. Various commercial carbon blacks are specified. The alkali-soluble polymer may be cellulose acetophthalate and other derivatives of cellulose, addition polymers and alkyd resins are listed.
Patent GB-1390907-A (GB)
Title: Controlling nuclear reactors
Inventor: BRIAN VICTOR GEORGE
IPC: G21C7/22
Filed: 1970-12-23
Abstract: 1390907 Controlling nuclear reactors BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 23 March 1972 [23 Dec 1970] 61106/70 Heading G6C A fluid-cooled reactor (e.g. helium-cooled HRT). with a core negative temperature coefficient of reactivity is controlled, to produce a rapid reduction in core thermal output, by reducing the coolant mass flow rate whereby the temperature rises and reactivity falls. The flow rate reduction may be effected by shutting down main boilers and coolant circulators while leaving auxiliary boilers and circulators operative. Simultaneously with the flow rate reduction, some of a group of control rods are introduced into the core to reduce its thermal output by an amount less than would accord with the reduced flow rate. The temperature rise is thus such as not to initiate a full reactor shut-down by tripping energency shut-down systems. The procedure is invoked when a short-term fault in the main turbogenerator or grid results in a decrease in demand on the reactor. The arrangement of main and auxiliary boilers is as disclosed in Specification 1,368,954.
Patent GB-1241740-A (GB)
Title: Process for producing an antibiotic salt
Inventor: KULBAKH VALTER OSVALDOVICH
IPC: C07G11/00
Filed: 1969-12-16
Abstract: 1,241,740. Sodium salt of levorin. LENINGRADSKY NAUCHNO - ISSLEDOVATELSKY INSTITUT ANTIBIOTOKOV. 16 Dec., 1969, No. 61175/69. Heading C2A. The sodium salt of the antibiotic levorin is produced by reacting levorin in suspension in an aqueous-organic medium with aqueous sodium hydroxide, at 20‹ to 45‹ C., and precipitating the resulting sodium-levorin salt with acetone. The preferred aqueous-organic media are 80% aqueous-acetone or a mixture of acetone, methylene chloride and water in a ratio by volume of 80À9 : 20. The sodium hydroxide, suitably 1% concentration, is preferably added in stoichiometric excess, e.g. 1À2 equivalents. The reacted solution is filtered or centrifuged and the required salt may be precipitated by adding about 7 volumes of acetone.
Patent GB-681839-A (GB)
IPC: B23Q35/18
Abstract: 681,839. Copying by turning, milling, or planing. PROGRES INDUSTRIEL SOC. ANON. April 18, 1950 [April 19, 1949], No. 9517/50. Class 83 (iii). [Also in Group XXIX] In hydraulic copying means for a lathe, milling or planing machine, the valve 34 in a housing 36 is operated by the feeler 33 and is mounted on an auxiliary piston 40 which is connected by a closed and independent hydraulic circuit 31, 44 to a compressor piston 22 mounted within the piston-rod 18 of a main piston 19 connected to the tool carrier 12<SP>1</SP>. For longitudinal copying in a lathe, the feeler valve 34 and the tool 12 are carried by a saddle 3, the tool carrier 121 being adjustable by a screw 13 on a tool slide 11 connected to the cylinder 20 of the piston 19 and mounted on a table 8 which is angularly adjustable on a transverse carriage 6. The feeler 33 bears on the valve stem and is mounted between the arms 33<SP>2 </SP>of two bell-crank levers pivoted on centres provided on supports 35 which are fixed to the valve body. The other arms 333 of the levers are connected to manual operating means and, on release of these means, the valve 34 moves to a position in which pressure is supplied to the piston 19 so that the cylinder 20 and the tool move towards the work. The compressor piston 22 is connected to the cylinder 20 by a hollow rod and is thus also moved, the oil from the space 29 within the rod 18 being forced through the rod 26 and flexible pipe 31 to the lower end of the auxiliary piston 40 and the oil at the upper end of the piston 40 returning to the compressor piston by the flexible pipe 44. The feeler is thus moved towards a fixed templet 32 correspondingly to the tool movement until, when the feeler contacts the templet, the valve establishes equal pressure on both sides of the main piston. Reservoirs 71, 72 having spring- loaded ball valves are fitted in the pipes 31, 44 to make up for any oil leakage. For transverse copying, the copying movement of the tool slide 11, Fig. 5, is parallel to the longitudinal axis of the work 10 and the templet 74 is mounted on the transverse carriage 6. For copying slopes of more than 60 degrees to the work axis, the feeler support may be tilted relatively to the templet axis, as shown in Fig. 3, the tool table 8 being angularly adjusted correspondingly on the carriage 6, relatively to the work axis.
Patent GB-2000811-A (GB)
Title: Recovery of metals by reduction and segregation
IPC: C22B34/32
Filed: 1978-07-05
Abstract: A component of the metal-bearing material is reduced to a metallic state and then the metal so formed segregated from the remaining material using a segregation catalyst, comprising at least one salt of said metal as a vapour, at an elevated temperature so that the metal may be subsequently separated from the relict non-metallic residue. The recovery of Ni, Co, Mn, Pb, Zn, Cr, Fe and Cu is specifically referred to. An "attractant" may be added at the segregation stage, the metal being recovered as an alloy thereof: suitable attractants are Cu, Ni, C, N, B, P, Si, S.
Patent GB-2002431-A (GB)
Title: Yarn handling
IPC: B65H54/20
Filed: 1978-07-13
Abstract: A plurality of yarns are engaged at respective locations, for example for winding on to respective bobbins, by passing them from respective fixed points to a common convergence point and then moving the convergence point relatively to the fixed points to cause the yarns to pass over a series of openings. The openings are designed to receive a yarn only if, as it passes the mouth of the opening, it lies in a predetermined plane. The predetermined plane of each opening is oriented such that the opening will receive only a respective one of the yarns, so that, after the group of yarns has passed all of the openings, each of the yarns is engaged in a respective opening.
Patent GB-2009308-A (GB)
Title: Pivotal mounting arrangement
IPC: F16C11/06
Filed: 1978-11-14
Abstract: A pivotal mounting arrangement, which may be used for mounting a lamp on a vehicle body, comprises a plastics body 10 having an integral boss 11 provided with an hexagonal inwardly tapering recess 12 therein. A socket element 13 formed from a spring steel sheet has a cup-shaped central portion 17 and outwardly projecting portions 14 which oppose removal of element 13 from the recess. A ball 15 integral with one end of a screw-threaded rod 16 is engaged in the socket element 13 before the latter is forced fully into the recess 12. When disposed in position in the recess 12, the portions 14 of the socket element 13 are deformed inwardly and hold the ball 15 captive whilst allowing same to rotate relative to the socket element 13. <IMAGE>
Patent GB-2015374-A (GB)
Title: Decontaminating nuclear reprocessing waste gas
IPC: B01D53/34
Filed: 1978-12-28
Abstract: Waste gas of a reprocessing plant for irradiated nuclear fuels or breeder materials is decontaminated of aerosols, nitric oxide, iodine, ruthenium tetroxide and tritated water vapour, by introducing the gas at 22 with carrier gas into section 1 for co-current contact with liquid eg. nitric acid introduced at 11 so that the predominant proportion of nitric oxide is recombined and the gas temperature is reduced to that required for a condensation-free iodine absorption as the gas is conducted from 24 through countercurrent section 4, in which section the flow ratio (V) of gas flow (G) and liquid flow (F) is smaller than the iodine distribution coefficient D (T, c) at every spatial point, the existing temperature (T) and the iodine concentration (c) is set, and the elementary iodine and iodine species with greater iodine distribution coefficients D (G/F) and ruthenium tetroxide is substantially wholly converted into recombined acid in the liquid phase, which is sprayed at 11 onto fine aerosol filter 9 before passing through coarse aerosol filter 8 and into section 4. <IMAGE>
Patent GB-2042264-A (GB)
Title: Electric circuit switchgear
IPC: H01H67/22
Filed: 1979-02-12
Abstract: A common switch gear contact drive for a plurality of circuits comprises main contact sets 2 circumferentially arranged on a fixed panel 1, a rotary electromechanical drive connected with a driving shaft 34 and enabling the latter to be turned through a pre-set angle. The driving shaft 34 is rotated together with an actuating element of an electromagnetic drive provided with a contact closer 43 and a contact release 41 both having at least one projection interacting with the main contact sets 2 and auxiliary contacts 20 through mechanisms 4 which are provided with contact latches which retain the contact sets 2 closed until release by the member 41. <IMAGE>
Patent GB-2044703-A (GB)
Title: Apparatus For Feeding Low Pressure Gas to a Marine Engine
IPC: F02M21/00
Filed: 1979-03-28
Abstract: In a marine vessel having an internal combustion engine which is fed with gas by a feed pipe 26 from a liquid-gas converter (LPG) 24, a tubular gas-tight casing 34 surrounds the whole of that part of the gas feed pipe which is within the hull of the vessel to reduce the risk of leaking gas exploding. The tubular casing is open to the atmosphere. It may extend to a hole in the vessel transom above the waterline. The gas feedpipe may pass through a flame tap 36 and connect directly or by way of an adaptor on to a carburettor 40 of the engine. <IMAGE>
Patent GB-2018935-A (GB)
Title: Right-angled frame joint
IPC: F16B7/18
Filed: 1979-04-09
Abstract: A joint between vertical and horizontal bars 1, 2 is formed by an L-shaped connector plate (3) whose horizontal leg (6) and upright leg (7) are fastened to horizontal bar (1) and vertical bar (2), respectively. Horizontal bar (1) is provided with a longitudinal channel (4) in its upper surface, both of the inner side surfaces of the channel (4) being provided with a longitudinal flange (5). Horizontal leg (6) is provided with clips (8) on both lateral edges facing the inner side surface of the channel (4), clips (8) being engaged each with one of flanges (5) provided on the inner side surfaces of channel (4). A bolt 9 in threaded engagement with leg 6 engages the base 1a of channel 4 to push the sections 8b of the clips into engagement with the flanges 5. <IMAGE>
Patent GB-2024960-A (GB)
Title: Rotatable assembly
IPC: B25D11/06
Filed: 1979-05-09
Abstract: A rotatable assembly has a rotatable member (20) such as a crankshaft assembly used to transmit energy to a fracturing tip of a rock breaker or a shaft assembly of a pump supported by a frame (22). To save space, instead of providing a journal shaft to support the rotatable member (20), an opening (42) is provided in the rotatable member (20). The frame (22) has a protrusion (44) extending into the opening (42) and a journal and thrust bearing (64, 62, 58) maintains the rotatable member (20) in rotatable, supported relationship on the frame protrusion (44). A second protrusion (48) may extend into an opening (46) on the side of the rotatable member opposite to the first opening (42). <IMAGE>
Patent GB-2021797-A (GB)
Title: Suppression of spark discharges from negative triboelectrically charged surfaces
IPC: G03C1/85
Filed: 1979-05-14
Abstract: A method of suppressing spark discharges from a surface liable to be or become negative charged, e.g. a photographic film, in which the surface is treated with an isopropylbenzene carrying a substituent with a Hammett  sigma p constant of from -0.17 to +0.82 in the 2- or 4-position relative to the isopropyl group or a substituent with a Hammett  sigma m constant of from 0.0 to 0.88 in the 3-position relative to the isopropyl group. The isopropylbenzene derivative preferably bears an anionic group in the para position which has a fluorinated organic anion which confers surfactant properties and ensures negative contact electrification of the surface. The compound is preferably applied in the gelatin top coat of a film. In Table 1, isopropylbenzene with only one substituent in the o or p positions are exemplified and in the example, isopropylbenzene or its peroxide are used.
Patent GB-2024939-A (GB)
Title: Intake system for an internal combustion engine
IPC: F02M69/00
Filed: 1979-07-03
Abstract: An intake passage 3 is bent at a portion thereof between an air cleaner (not shown) and an intake manifold 2, a mounting 11 for a fuel injector 10 projecting into a section of the intake passage downstream of the bent portion and defining an annular passage 12 at said bent portion, and an annular enlarged chamber 13 formed around said annular passage. The chamber 13 and baffle plate 15, perforated plates 17, 18 and honeycomb passages 20, 19 are adapted to make the flow of air from the air cleaner less directional, uniform the air flow and relieve pulsation thereof, thereby improving mixing of fuel and air and atomization of fuel to improve uniformity of distribution of a fuel and air mixture. <IMAGE>
Patent GB-2040103-A (GB)
Title: Slow wave coupling circuit
IPC: G01S7/02
Filed: 1979-11-21
Abstract: A circuit for coupling a first electromagnetic circuit to a second electromagnetic circuit includes an inner slow wave structure (Fig. 6) and an outer slow wave structure (Fig. 3) coaxial with the inner structure. The outer structure is preferably a strapped bar line and the inner structure is preferably an interdigital line. The phase velocities for the two structures are proportional to the circumferences of the structures so that the rate of circulation of a wavefront is the same for a wave propagating about the inner structure and a wave propagating about the outer structure. The structures are terminated in the characteristic impedances to provide for wave propagation in one direction without reflections. Elliptical structures are described. The spacing between the two parts of the interdigital line may be adjustable to adjust the inner structure phase velocity correctly. The device is used to process a test signal which is compared with the output of a cross-field amplifier, the error signal being used as a measure of the ageing of the amplifier. <IMAGE>
Patent GB-2044670-A (GB)
Title: Crop Material Roll Forming Machines
IPC: A01F15/14
Filed: 1979-11-23
Abstract: There is provided a crop material roll forming machine having a frame, means on the frame defining a roll forming region (3), a twine dispensing mechanism (31) mounted on the frame (2) and movable from a rest position (89) across the roll forming region (3), tensioning means (72) associated with the dispensing mechanism (31) and operable to tension the twine as it is being applied to a crop roll, and means (70) engageable with the tensioning means to render the latter inoperative at a predetermined point in the dispensing movement of the dispensing mechanism (31). The tensioning means (72) may comprise a member (77) pivotally mounted on a U-shaped twine dispensing arm (33) and biassed by a spring (75) so that the twine (85) is engaged between a leg (78) of the member (77) and the base (33'') of the arm (33). When the arm (33) is at its closest to the bale forming region (3), a cam (70) engages a rod (79) and causes the leg (78) to pivot away from the base 33''). <IMAGE>
Patent GB-2075885-A (GB)
Title: Metal workpiece finishing machine and process
IPC: B23D1/26
Filed: 1980-05-12
Abstract: A metal workpiece finishing machine has a pair of upper and lower rotary shafts (4, 5) each having an integral eccentric (4a, 5a) are mounted in an operation member (3) which is provided with a pair of circular through holes (3a, 3b) in which the eccentrics (4a, 5a) are received and the rotary shafts (4, 5) are drivingly connected to an electric motor through a transmission mechanism (14, 13a, 13b, 4b, 5b). A cutting tool (30) with a V-cross-section edge is detachably mounted in a recess (3c) on the upper surface of the operation member (3). The arrangement is such that a circular motion is imparted to the edge of the tool (30). A metal workpiece is longitudinally fed along a base, with the tool motion causing a workpiece corner to be machined. <IMAGE>
Patent GB-2052409-A (GB)
Title: Hydraulic apparatus
IPC: B64C13/42
Filed: 1980-06-09
Abstract: Hydraulic apparatus (7), for use in an aircraft system where a hydraulic actuator (42) is powered by a first hydraulic supply (40) or selectively and alternatively by a second hydraulic supply (41) independent of the first, which, when a fault occurs, will establish whether the actuator or the first hydraulic supply is at fault, and if it is the first hydraulic supply will isolate that supply and select the second hydraulic supply, but if it is the actuator will ensure that both supplies are isolated. Moreover, the apparatus will establish whether the actuator fault is tolerable and if it is, will select the second supply. If the second supply were to be selected if the actuator was intolerably faulty, failure of the second supply would follow in rapid succession. Hydraulic circuit of apparatus 7 is described in detail. <IMAGE>
Patent GB-2094918-A (GB)
Title: Wooden plug for rock support
IPC: F16B13/12
Filed: 1980-07-28
Abstract: A machined wooden plug is installed in a hole that has been drilled for the purpose of rock support. A steel reinforcing member is then driven by hammering or screwing down the centre guide hole of the plug, using the impact or rotating mechanism of a rock drill transmitted to the nail through an adaptor. A face plate is held in position by the domed head of the member. The plug is split into two halves along its length to assist in the machining of the guide hole, and the two halves are bound or attached together for installation in the rock hole. <IMAGE>