baber/WOPTO huggingface dataset:
Patent GB-1535763-A (GB)
Title: Apparatus for the continuous wet treatment of fabric
IPC: D06B3/16
Filed: 1975-12-15
Abstract: 1535763 Wet treatment of textiles VEPA AG 15 Dec 1975 [14 Dec 1974 19 Dec 1974 3 Oct 1975 (2)] 51219/75 Heading D1L In the wet treatment of textiles (e.g. shrinking, relaxing or swelling) by passage through a bath of liq. 18 whilst suspended in loops on rods 10 attached to a conveyor, the bath is partitioned by vertical walls 16, 17 to define a pair of chambers 19, 20 for recycling the liq. withdrawn through the perforated bottom 23 of the treatment chamber by pumps 21 to the top of the chamber through a perforated cover plate 22 as to direct the recycled liq. downwards onto the suspended loops. The conveyor may be concertina-like [Fig. 5 (not shown) ] and be carried in a guide rail (30) pivoted at the outlet end (33) and vertically reciprocated at the inlet end by an eccentric (32). Alternatively the rods may have the shape of an elongated eyelet (34) [Fig. 6 (not shown)] supported by pins (35) located on the conveyor, the rods being reciprocated by passage over a corrugated guide (36). The textile is introduced into the treatment chamber either via a chute (14) [Fig. 1 (not shown) ] or through a funnel (30) [Fig. 4 (not shown) ] supplied with liq. recycled from the outlet end of the chamber by pump (37). Treatment liq. is also supplied from trickling boxes 27. The textile is withdrawn either over roller (15) [Fig. 4] or suction drum (29) [Fig. 3], the textile being sprayed at (27) or (28) and squeezed at (8) prior to being washed on sieve drums (3).
Patent GB-1058240-A (GB)
Title: Semiconductor device
IPC: H01L29/00
Filed: 1963-12-30
Abstract: 1,058,240. Transistors. MOTOROLA Inc. Dec. 30, 1963 [Jan. 18, 1963], No. 51230/63. Heading H1K. A transistor is formed by epitaxially depositing base zone material on a heavily doped substrate forming the collector and diffusing impurity into the epitaxial material to effectively extend the collector zone to the surface around the base zone and form an emitter zone within the base zone. A typical transistor, Fig. 12, is formed by first depositing an epitaxial layer of N-type silicon, by reduction of doped silicon tetrachloride, on a heavily doped P-type silicon substrate. An oxide mask is formed, using conventional photolithographic and etching steps, to expose only the peripheral part of the epitaxial layer, and boron diffused through this to form a P-type frame joining up with the substrate to complete collector zone 2. A hole is then formed in the mask to expose a central part of the surrounded N region 6 constituting the base zone, and boron diffused through to form P-type emitter zone 9. After diffusing phosphorus into the surface of the base zone around the emitter, aluminium is vapour deposited on and alloyed to exposed parts of the zones to form base and emitter contacts 14, 13. The resulting device is bonded to a metal header via a -gold collector contact 15 and the base and emitter contacts joined to insulated pins extending through the header by thermocompression bonded wires. Slow diffusing impurities are used in the substrate and epitaxial layer to avoid flattening of the collector junction in subsequent heating steps, and the emitter diffusion step is controlled to give an abrupt junction. If desired a drift field is built into the base zone by grading the epitaxial layer. During the diffusion steps silicate glasses are formed over the oxide layer and these are retained to give additional protection in the finished device.
Patent GB-1286258-A (GB)
Title: Improvements in or relating to limiter circuits
Inventor: GUNN BRIAN
IPC: H03G11/00
Filed: 1969-10-22
Abstract: 1286258 Semi-conductor limiters EMI Ltd 22 Oct 1969 [30 Oct 1968] 51547/68 Heading H3T A limiter including a semi-conductor device comprising first and second regions 4a, 4b, of one conductivity each separated, by a common region 13, 6a, 6b of opposite conductivity type, from a third region 5a, 5b has the first and second regions connected in series with a signal path and a control current applied between the common region and the third region determines the level at which input signals are limited. The circuit limits at the same level for both directions of conductivity. The semi-conductor device (Fig. 2(a), not shown) may be represented as two transistors 3a, 3b shown in equivalent circuit form in Fig. 2(b). This device is shown in Fig. 3 as 13 and is used to limit the output from an amplifier 14 and is included in a negative feedback path 17, 18 so as to cause rapid onset of limiting. Further limiting may be obtained by shunt transistors 19, 20. To stabilize the circuit against temperature the limiter used in Fig. 3 may be modified by providing negative feedback to the base-collector circuit of the device 26 (Fig. 5) from a transformer 40 so as to reduce the limiting current. The primary windings 41, 42 are energized by the conduction of transistors 31, 43 when positive and negative input signals respectively to 25 go above the limiting level. In a modification two separate transformers may be used or transistor 43 and winding 42 may be omitted (Fig. 4, not shown). Alternatively the windings 41, 42 may be replaced by resistors with the collector of each transistor 31, 43 coupled to an operational amplifier whose output reduces the limiting current regardless of the transistor 31 or 43 operated. Change in current gain of device 26 may be minimized by a voltage controlled attenuator between the output of the operational amplifier and the base-collector circuit of device 26.
Patent GB-1412436-A (GB)
Title: Resin backed floor covering
IPC: D06M17/00
Filed: 1972-11-08
Abstract: 1412436 Backing carpets UNIROYAL INC 8 Nov 1972 [10 Nov 1971] 51564/72 Addition to 1361263 Heading B2E A modification of the method of backing a carpet described and claimed in UK Specification 43444/71 (Serial No. 1361263) comprises the additional step of applying a latex to the back side of a sheet of fabric carpeting and drying the latex before prefluxed, plasticised resin granules are applied. The carpet may be woven, non-woven with looped or tufted pile assembled e.g. by needle punching and contain fibres of cotton, rayon, wool, nylon polyester, acrylate, polypropylene or glass. The latex may be carboxylated or non-carboxylated SBR, butadiene-acrylonitrile, copolymer, natural rubber, p.v.c., or copolymers of vinyl chloride with methyl acrylate, ethyl acrylate, acrylic acid, vinyl acetate or dibutyl maleate, or butadiene-acrylonitrile-itaconic acid terpolymer. Suitable resins are vinyl chloride homopolymer or copolymer with ethylene, propylene, cetyl vinyl ether, dialkyl maleate esters, acrylonitrile or styrene, and resin granules may be applied by dropping or spreading then levelling a granule layer. The resin may be foamed and an unblown granule layer may be applied to the latex, followed by a blown layer.
Patent GB-1455453-A (GB)
Title: Barrier package and method of manufacture
IPC: B65D83/14
Filed: 1973-11-13
Abstract: 1455453 Pressurized bag-type dispensers T H PETTERSON 13 Nov 1973 52627/73 Heading F1R The bag 10 of a pressurized dispenser of the type in which an inner bag is collapsed by fluidpressure to dispense a product, is formed in situ in the outer container and initially adheres to the container wall so that it peels therefrom as dispensing takes place the discharge valve 7 being spaced from the propellant charging valve 8 by the wall 3. Reference has been directed by the Comptroller to Specification 118945D.
Patent GB-1335967-A (GB)
Title: Collapsible dispenser
IPC: B65D75/10
Filed: 1970-11-05
Abstract: 1335967 Collapsible containers; packages KRAFTCO CORP 5 Nov 1970 [17 Nov 1969] 52635/70 Headings B8D and B8C A package 13, comprising a filled collapsible, longitudinally-seamed plastics tube having its ends gathered together and held by metal clenching bands 26, is provided with a cap 15 having a dispensing orifice 29 and bonded, preferably by a pressure sensitive adhesive, to one of said ends with the clenched tube end portion 19 protruding through the orifice. The package is opened by clipping off said clenched tube end portion, and its contents, e.g. cheese, dispensed through the orifice by squeezing the tube. The orifice is provided with leaves 35 to form a star-shaped extrusion. The cap may be moulded of plastics or formed from sheet metal, paper or plastics or laminates thereof. The package is formed by folding and longitudinally seaming a multiply web of vinylidene chloride polymer and polyethylene into tubular form by heat-, ultrasonic-, or electronic sealing techniques as the tube is being filled.
Patent GB-1049590-A (GB)
Title: Selection system for electrical circuits or equipments
Inventor: SANDS JAMES CUNNINGHAM
IPC: H04Q3/545
Filed: 1964-12-30
Abstract: 1,049,590. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Dec. 30, 1964 [Dec. 30, 1963], No. 52823/64. Addition to 1,049,589. Heading H4K. In the queue storage chains of the parent Specification the first and last storage compartments to contain the identity of a supervisory store demanding service are recorded in an auxiliary storage section so that the central logic circuit by consulting the auxiliary storage section can proceed immediately to the next free storage compartment of the chain to register a new queue member, and can proceed immediately to the first occupied compartment of the chain to connect the first member of the queue to the requested common circuit. In this arrangement the core to3 in the supervisory store which records whether a service demand has been given a place in the queue is switched to indicate a queue place before the place is found. Examination of the auxiliary storage section's first and last queue position record will indicate whether the store is full, in which event the core to3 is switched back and the demand for service is left over until the next scan. A bi-stable circuit is set to indicate no members present in the queue.
Patent GB-1511570-A (GB)
Title: Sight glass assembly
IPC: G02B7/00
Filed: 1975-12-29
Abstract: 1511570 Sight glass for pressure vessel or pipeline C E MEGINNIS 29 Dec 1975 52938/75 Heading F2P A sight glass assembly for a pressure vessel or pipeline comprises a housing 10 having a shoulder 21, a face plate 12 mounted on the housing 10 in opposed relation to the shoulder 21, a lens 11 interposed between shoulder 21 and face plate 12, a packing member 13 having an annular recess extending towards shoulder 21 and an annular wedging member 14 on shoulder 21 and projecting into the recess of the packing member so that when the parts are assembled the wedging member expands the packing member laterally to provide a seal. Gaskets 29 and 30 may be provided between the lens and the shoulder 21 and face plate 12 and the wedging member may be integral with or separate from the housing 10. A liner, impervious to fluid in the vessel, may be interposed between the packing member 13 and the lens and face plate.
Patent GB-1412318-A (GB)
Title: Disazo pigment sensitized photoconductors
IPC: G03G5/06
Filed: 1973-11-15
Abstract: 1412318 Electro-photographic element INTERNATIONAL BUSINESS MACHINES CORP 15 Nov 1973 [26 Dec 1972] 52959/73 Heading G2C An electro-photographic element comprises a support with an electrically conductive surface and a photo-conductive layer comprising a charge transfer complex of polyvinyl carbazole and trinitrofluorenone dissolved in tetrahydrofuran (THF) and a dispersion of a disazo pigment which has been milled to submicron size in a solvent containing at least 50 wt per cent of benzene or an alkyl substituted benzene which is liquid below 20‹C and has a boiling point of less than 250‹C, the layer containing a residual amount of the benzene solvent. Specified substituted benzenes are toluene, ethyl-, propyl- or t-butyl benzene, xylene, mesitylene and cumene. The element is able to withstand a higher operating temperature than that disclosed in Specification 1370197 which uses THF as sole solvent. The layer preferably contains polyvinyl formal as adhesive binder.
Patent GB-1156278-A (GB)
Title: A Device for Observing the Contents of an Enclosure
IPC: G01F23/292
Filed: 1967-11-23
Abstract: 1,156,278. Observation devices. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. 23 Nov., 1967 [24 Nov., 1966, 6 Dec., 1966], No. 53367/67. Heading F4B. A device for observing the contents of an enclosure, e.g. a blast furnace, comprises at least one observation screen 53 mounted over an opening 52 and equipped with a clearing device, and a shutter valve 57 arranged to seal the said opening hermetically by control rods operated by a screw system (see Fig. 1, not shown). As shown, the clearing device includes a member 55 for displacement of a scraper 56 along the inward surface 54 of the screen 53, compressed air being passed into a distribution box 58 to exert a thrust on a piston 59 to hold the said scraper in permanent contact with the surface 54. The member 55 is advantageously equipped with a mechanism for self-rotary motion, which renders it possible to vary the inclination of the scraper relative to the surface to be cleaned. The scraper may consist of a pliable or resilient material, either by composition as in the case of asbestos or rubber, or by method of production, as in the case of a pad of intermeshed fibres of metal, textile or synthetic fibres.
Patent GB-1525160-A (GB)
Title: Submersible body warmer apparatus
IPC: F24V30/00
Filed: 1976-12-21
Abstract: 1525160 Body warmers K SUZUKI 21 Dec 1976 [25 Dec 1975] 53395/76 Heading A5X A body warmer which is intended to be worn between a diving suit and the body of the wearer has a combustion chamber 2, a combustion air supply means and a gas pasage 3 for products of combustion to an exhaust opening 10 closed by a die-way valve 11 which opens when the pressure inside the gas passage 3 is greater than that outside the body warmer. Thus, water in the suit is prevented from entering the gas passage and the continuous supply of combustion products to the space between the suit and the wearer's body tends to inhibit passage of water into the suit e.g. via cuffs &c. An air cylinder may be supported on the wearer and supply air to the body warmer as well as to a respiratory mouthpiece or may be incorporated in the body warmer.
Patent GB-1221659-A (GB)
Title: Aluminium base alloys and anodes
Inventor: BROUGHTON TREVOR
IPC: C22C21/10
Filed: 1967-11-24
Abstract: 1,221,659. Aluminium alloys. BRITISH ALUMINIUM CO. Ltd. Nov. 20, 1968 (Nov.24, 1967], No. 53547/67. Heading C7A. An Al-base alloy suitable for use in the ascast condition as a galvanic anode consists by weight, of:- of:- Zn 1-15% In 0.005 - 0À1% Mg 0À4 - 10% optionally Sn 0.1 - 0À5% " Ga 0.005 - 0À017% " Ti 0.005 - 0À07% Al of at least 99À8% purity and impurities - balance. Impurities should be less than 0À2% each of Si and Fe.
Patent GB-1436820-A (GB)
Title: Ergoline derivatives
IPC: A61P25/02
Filed: 1974-12-13
Abstract: There are prepared compounds having good adrenolytic, hypotonic, analgesic, central-sedative and antiserotoninic activity of the formula III <IMAGE> in which R denotes hydrogen or methyl; R1 and R2 in each case denote hydrogen, alkyl having 1 to 3 carbon atoms, methoxy or phenyl; R3 denotes hydrogen, halogen, alkyl or alkoxy having 1 to 3 carbon atoms, phenyl, cyano, nitro, amino, acylamino having 1 to 3 carbon atoms, carboxamido or carbalkoxy having 1 to 3 carbon atoms in the alkoxy group, trifluoromethyl or SO2-Y, where Y is hydroxyl, amino or methyl; and R4 denotes hydrogen or methoxy. These compounds are obtained by reaction of an appropriate 2-aminopyrimidine anion with an appropriate 8- beta -chloro-, bromo-, mesyl- or tosyl-methylergoline derivative. The reaction is carried out in an aprotic solvent, dimethylformamide or dimethyl sulphoxide is preferred. The reaction temperature is preferably 50-110 DEG C. Significantly improved reaction yields are obtained.
Patent GB-1243534-A (GB)
Title: Marine surface dredgers for the recovery of oil and other floating pollution
Inventor: SANDFORD WILLIAM HERBERT
IPC: E02B15/04
Filed: 1968-11-16
Abstract: 1,243,534. Scavenging vessels. W. H. SANDFORD. 16 Feb., 1970 [16 Nov., 1968; 19 Nov., 1968], Nos. 43907/68 and 54810/68. Heading B7A. A surface dredger for the recovery of oil and other floating pollution comprises a vessel having a hold 5 open to the sea at the bottom and a forepart 3 which has a front face 6 set across the fore and aft line and sloping down and aft to meet the bottom 7. The face 6 extends above the water line and serves to force surface pollution under the vessel's bottom and under the open hold, permitting pollution to rise to the surface within the hold.
Patent GB-1464723-A (GB)
Title: Improvements in or relating to fluid flow control valves
Inventor: KING VICTOR HOWARD GEORGE
IPC: E03C1/04
Filed: 1974-01-29
Abstract: 1464723 Valves BARKING BRASSWARE CO Ltd 29 Jan 1974 54950/74 Divided out of 1464722 Heading F2V The description is similar to that of Specification 1,464,722, but the claims are directed to the shroud of Fig. 3 of that Specification.
Patent GB-1126619-A (GB)
Title: Improvements in and relating to silos and unloading apparatus therefor
IPC: A01F25/20
Filed: 1965-12-28
Abstract: 1,126,619. Sweep augers unloading silos from above. DEERE & CO. 28 Dec., 1965 [28 Dec., 1964], No. 54994/65. Headings B8A and B8E. A feed auger traversable over the silage to convey it to the centre of a silo for discharge is provided with a casing open on the underside to allow contact between the auger and the silage. The casing provides a storage space on the advance side of the auger and has stripper means adjacent its top so that the volume conveyed is increased. Various arrangements of casings are illustrated and in one example two parallel augers are provided at different levels.
Patent GB-1416851-A (GB)
Title: Dyeing process
IPC: D06P5/00
Filed: 1973-11-29
Abstract: 1416851 Dyeing polyacrylonitrile fibres E I DU PONT DE NEMOURS & CO 29 Nov 1973 [30 Nov 1972 17 Oct 1973] 55340/73 Heading D1B Dry-spun polyacrylonitrile filaments which are substantially undrawn and contain in excess of 10% spinning solvent by weight are dyed by (1) passing a bundle of filaments through an aqueous extraction bath having a temperature below 80C at a rate of at least 10 yds per minute, until the spinning solvent content of the filaments is below 10% by weight of the filaments, (2) squeezing the bundle of filaments under pressure to remove most of the extraction bath liquid therefrom, (3) contacting the filaments with dye liquor at 80C or below at nearly zero stretch, (4) removing excess liquid by squeezing under pressure to the extent that there is a net pick up of liquid dye mixture on the filaments, which remain in contact with dye liquor and, before or after removing the excessive liquid in step (4), (5) drawing the filaments between 1.5 Î and 4.5 Î at a temperature between 60 and 80C whilst the filaments are in contact with the dye liquor. An aqueous medium may be used to remove excess dye liquor after the filaments have remained in contact therewith for at least 10 seconds. The drawing step (5) may take place while the filaments are immersed in an aqueous solution of boric dye.
Patent GB-1120830-A (GB)
Title: Noise level-time recording device
Inventor: CHURCH FRANKLIN WINFIELD
IPC: G01H3/00
Filed: 1965-12-31
Abstract: 1,120,830. Sound level monitoring; amplifiers. ESSO RESEARCH & ENG. CO. 31 Dec., 1965, No. 55424/65. Headings H3T and H4D. [Also in Division G1] A sound level monitoring system comprises an integrating device for recording the total time for which sound received by a microphone is above a predetermined level. The microphone output is amplified by a hybrid amplifier incorporating cathode-collector coupled stages 25 and Q 1  (Fig. 1) and if above the predetermined level causes a transistor Q 7  to be triggered into the conductive state, whereby a constant current is passed through an electrolytic coulometer 40 which thus indicates the time for which Q 7  is conducting. A plurality of trigger circuits, coupled to respective timeindicating coulometers and each associated with a different predetermined level, may be used (Fig. 3, not shown) and band-pass filters may be used in an embodiment for recording the total time for which sounds within selected frequency bands are above a predetermined level or different predetermined levels (Fig. 4, not shown). The electrolytic coulometer (Fig. 2) comprises a capillary tube (101) filled with mercury except for a gap (103) containing an aqueous solution of mercurous chloride, mercury being plated across the gap by the passage of current between end electrodes (104), (105). In a modification (Fig. 2A) for preventing the eventual transfer of all the mercury to one side of the gap (which would render the coulometer irreversible), an additional electrode 111 or 112 is provided near each end of the tube. Electrodes 104 and 112 are used when moving the gap to the right and electrodes 105 and 111 when moving the gap to the left.
Patent GB-1376438-A (GB)
Title: Piperidine derivatives
IPC: C07D211/46
Filed: 1971-11-30
Abstract: 1376438 Piperidine derivatives CIBAGEIGY AG 30 Nov 1972 [30 Nov -1971] 55486/71 Heading C2C [Also in Division C3] Novel piperidine derivatives having the general formula wherein A is -CH 2 -, -CH 2 -CH 2 - or R 1  and R 2  are (C 1 -C 6 ) alkyl groups or 1- methylcyclohexyl or α,α-dimethylbenzyl radicals; R 3  and R 4  are (C 1 -C 12 ) alkyl groups, or together with the intermediate carbon atom form a (C 5 -C 8 ) saturated alicyclio residue or a group of the formula and n is 0 or 1, are prepared by reacting a compound of the formula with either (a) an acid halide of the formula wherein Y is halogen, in the presence of a halogen-acid binding substance, (b) an ester of the formula wherein R is a (C 1 -C 6 ) alkyl group, in the presence of a transesterification catalyst, or (c) a carboxylic acid of the formula in the presence of an esterification catalyst. The novel compounds may be used as stabilizers for polymers.
Patent GB-1195078-A (GB)
Title: Purification of Formic or Propionic Acids.
IPC: C07C51/487
Filed: 1967-12-08
Abstract: 1,195,078. Purifying formic or propionic acids. UNION CARBIDE CORP. 8 Dec., 1967 [12 Dec., 1966], No. 55921/67. Heading C2C. Formic acid or propionic acid is purified by contacting it with urea at a concentration of from 0À2 to 5% by weight of the acid, and heating the organic acid-urea reaction mixture to a temperature of at least 40‹ C. in the case of formic acid, and at least 100‹ C. in the case of propionic acid. Water may optionally be added at some stage during the process in order to increase the efficiency thereof.
Patent GB-1452141-A (GB)
Title: Polycarbonate moulding compositions
IPC: C08L33/00
Filed: 1973-12-06
Abstract: 1452141 Polycarbonate composition; thermoplastic moulding compositions BAYER AG 6 Dec 1973 [9 June 1973] 56492/73 Headings C3R C3G and C3P A thermoplastic moulding composition comprises by wt. 10-95% (1) an aromatic polycarbonate, 5-90%; (2) thermoplastic resin and/ or 5-90%; (3) a rubber which may be modified, where in (1), #, 50% of the recurrent units are where R is C 1-3  alkyl and X is a single bond, O, CO, C 1-10  alkylene or alkylidene, C 5-15  cycloalkylene or cycloalkylidene, or Other units in (1) may be derived from non- tetralkyl-substituted bisphenols, optionally halogenated, 0À05-20% moles compounds containing #3 OH groups may be incorporated for branching, (1) may have M.W.-10,000-200,000; (2) may be derived from styrene or derivatives, (meth)acrylic acids or derivatives, and maleic anhydride; (3) may be natural or synthetic, and may be a graft polymer. The compositions may be prepared by coprecipitating some or all of the ingredients, mixing with kneaders, extruders, or rollers, or preparing polymers in the presence of others, e.g. by grafting. Use.-Pipes, cooking utensils, sterilizing instruments, washing-machine parts, battery containers, electrically-insulating parts and materials, container linings, filter cloths. Specification 1,449,870 is referred to.