baber/WOPTO huggingface dataset:
Patent GB-1154638-A (GB)
Title: Improved Lithium Fluoride Dosimeter.
IPC: G01T1/11
Filed: 1967-10-02
Abstract: 1,154,638. Pelleted LiF. UNITED STATES ATOMIC ENERGY COMMISSION. 2 Oct., 1967 [15 Nov., 1966], No. 44754/67. Heading C1A. [Also in Division C4] In preparing a thermoluminescent dosimeter LiF powder is compressed in the presence of sodium silicate solution to form a pellet, which has a density of about 2-2 gms/cm.<SP>3</SP> and a thickness of 0-025 inch. In the example, 50 mg. of LiF is mixed with 8-20 mg. of aqueous sodium silicate solution, the LiF having a density of 1À3-1À5 gm/cm.<SP>3</SP> and a particle size greater than 0-074 mm. and less than 0-147 mm. The mixture is then pressed in a die under a pressure of 18,000-23,000 p.s.i., removed therefrom and heated for 1 hour at 400‹ C., cooled rapidly, placed on a metal strip and heated to 80‹ C. for 20-24 hours. Preferably the LiF contains impurities e.g. 10-100 ppm Mg, and 0À01% by weight Ca and traces of Al, Fe, Ti and Si. In discussing the prior art, the Specification refers to using polytetrafluorethylene as a binder for LiF and also refers to U.S. Patent Specification 3,243,590 in which a potassium silicate binder is used.
Patent GB-1025676-A (GB)
Title: Preparation of unsaturated nitriles
IPC: B01J27/198
Filed: 1962-11-27
Abstract: In a method of preparing acrylonitrile and methacrylonitrile from propylene and isobutene respectively the olefine is reacted for 0.1 to 100 secs. at 350 DEG  to 600 DEG  C. and a pressure from atmospheric up to 50 kg./cm2. of ammonia and molecular oxygen in the presence of a catalyst comprising an oxide mixture of vanadium, iron and bismuth on a support e.g. SiO2, SiC, Al2O3, pumice or diatomaceous earth.  Additionally, the catalyst may contain boron and/or phosphorous and/or molybdenum oxides.  The gaseous reaction medium may contain steam. Acetonitrile is a by-product.  Reference has been directed by the Comptroller to Specification 977,311.
Patent GB-1018355-A (GB)
Title: Electrical connector latch plug
IPC: H01R13/00
Filed: 1964-11-04
Abstract: 1,018,355. Two-part couplings. AMP Inc. Nov. 4, 1964 [Nov. 4, 1963], No. 44914/64. Heading H2E. A plug contact for use in a movable plugboard 13, and for engaging contact springs 18 mounted in a contact board comprises a tubular contact portion 1B and a resilient locking detent 7A formed from the same metal blank, the detent having an extension 7B extending through the tubular portion 1B and projecting forwardly therefrom so that any rearward force on the end of the contact tends to lock it more firmly in the board 13. The detent is formed from an " L "-shaped projection at the edge of the blank joined to the blank by the base of the "L," Fig. 1 (not shown). The stem of the " L is bent upwardly to extend through a central hole 10 in the blank. The rear part of the contact has a shoulder 9 to limit forward movement of the plug, and may be crimped to a cable 15, a body 16 then being moulded round the joint. In further embodiments, the detent may project through a hole formed between the two edges of the blank when joined to form the cylindrical plug member (Fig. 11, not shown), or two detents may be formed one on each side of the blank (Fig. 13, not shown) or one detent on one side of the blank and one in the centre (Figs. 12-15, not shown). In a final embodiment (Figs. 17-19, not shown) the forward projection of the detent may extend externally of, but alongside, the plug portion and be held in a transverse direction by arms 201, but still allowed to move longitudinally to lock the contact in the board.
Patent GB-1434295-A (GB)
Title: Floor covering compoition having a plaster base
IPC: E04F15/12
Filed: 1973-09-28
Abstract: 1434295 Plaster compositions H & E BORGARDTS KG 28 Sept 1973 [29 Sept 1972] 45601/73 Heading C1H A plaster base for a floor covering composition comprises a mixture of 0À4-1À5 wt. per cent of liquefier, 0À001-0À5% by weight of setting retarding agent, 5-20 wt. per cent of Ca(OH) 2  and 99À599-78À45% of alpha calcium sulphate hemihydrate. Hardeners, e.g. Al 2 (SO 4 ) 3  and Portland cement are optionals. Water soluble polysilicic acids and modified melamine formaldehyde resins are examples of liquefiers. Floor covering compositions contain the plastics base and sand.
Patent GB-1032871-A (GB)
Title: Colloidal silver colour filters and photographic material containing the same
Inventor: WOOLLEY JOHN MATHERS
IPC: G03C1/825
Filed: 1963-11-21
Abstract: A process for the production of colloidal silver, suitable for use as a spectrally selective light filter, comprises subjecting a silver salt solution (simple or ammoniacal) e.g. silver nitrate, in the presence of a protective colloid such as gelatine or polyvinyl pyrrolidene, to reduction with a soluble inorganic borohydride such as alkali metal borohydrides (sodium and potassium borohydrides are specified), or with a stable water-soluble amine-borane of the general formula R1R2R3N : BH3, wherein within the limitation that the amine-borane is stable in aqueous solution R1 and R2 separately represent hydrogen atoms or alkyl, aryl or aralkyl groups and R3 represents alkyl, cycloalkyl, aryl or aralkyl groups or R1 and R2 constitute with the nitrogen atom a heterocycle and R3 is then a hydrogen atom.  Examples of amine-boranes are dimethylamine borane, trimethylamine borane; pyridine borane, cyclohexylamine borane, morpholine borane or piperazine borane.  Instead of an amine-borane the precursors for the production of the amine-borane may be used, i.e. an amine hydrochloride salt R1R2R3N : HCl, and an alkali metal borohydride.
Patent GB-1391976-A (GB)
Title: Information stores
IPC: G06F11/00
Filed: 1972-10-10
Abstract: 1391976 Data stores; error detection SIEMENS AG 10 Oct 1972 [25 Oct 1971] 46560/72 Heading G4A A data store comprises a plurality of independent storage modules, a number of common address lines connected to each storage module by a respective branch, a first test device P1 connected to the address lines downstream of the last branch therefrom, and a second test device P2 connected to receive the store output, the arrangement being such that when an address is supplied to the address lines and is verified as correct by the first test device, a fault in a single storage module or its associated address branch can not result in an erroneous store output which the second test device can not detect as erroneous. In an embodiment, Fig. 1, the store consists of a group of m storage modules B1-Bm each including an address decoder D and a store S, each being supplied with the same address signals A1-Ax, and each providing one bit of an m-bit word. If a supplied address is verified as correct by test, e.g. parity, circuit P1 the correct address has been received at the start of each address branch and since each module supplies only a single bit an error in a single store and/or its address branch will be detected by parity circuit P2. In a second embodiment, Fig. 2, the store includes M groups G1-GM each of a storage modules, each module providing b bits of the output. One group of address lines Ab1-Abx select, by means of decoders V, a corresponding module in each group, the selected modules being addressed via lines Al-Ax. The output of the store is thus an Mb-bit word. The address lines are monitored for parity by P1 as in Fig. 1, while the store output is monitored by a device P2. Since a fault in a single module and/or address branch can affect up to b bits it is necessary to divide the store output into b portions each of M bits, i.e. a corresponding bit from each module and to provide a parity check for each of the portions. The device P2 is thus formed of b parity networks and always detects a fault even if the overall parity of the Mb-bit word is correct. The decoders V may be replaced by a single decoder feeding one-out-of-a address lines each of which is connected to a corresponding module in each group. A third test device is provided to check the output of the decoder. It is stated that the second embodiment may be used in connection with one-bit storage modules and that the modules may be integrated circuit devices.
Patent GB-1451944-A (GB)
Title: Fishway
IPC: E02B8/08
Filed: 1973-10-06
Abstract: 1451944 Fishway AEROCEANICS FISHWAYS CORP 4 Oct 1974 [6 Oct 1973] 46773/73 Heading A1A A fish pass or ladder comprises a helical or a straight or curved but inclined channel whose side walls have longitudinally spaced, transversely extending baffles 28, 32 adjacent ones of which are not fixed to the same side wall such that they define vortex forming zones 35, adjacent ones of which provide vortices of opposite rotation whereby upstream fish passage is assisted. The baffles 32 may be inclined in the direction of fish travel.
Patent GB-1195404-A (GB)
Title: Improvements in the Injection Moulding of Foamed Articles
Inventor: OXLEY DAVID FAIRCLOUGH
IPC: B29C44/58
Filed: 1967-10-13
Abstract: 1,195,404. Injection moulding. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 Oct., 1968 [13 Oct., 1967], No. 46872/67. Heading B5A. In a method of producing cellular articles in a mould having one or more mould cavities and two mould parts movable towards and away from each other, the mould walls being of resilient material, a foamable thermoplastic composition is injected at its foaming temperature into the mould while the said parts are urged towards each other to compress the walls and reduce the cavity or cavities, after which the pressure urging the parts together is reduced so that the resilience of the wall material expands the cavity or cavities to allow the composition to foam. Examples of moulding compositions include polyethylene, polypropylene, polymers and copolymers of styrene with a suitable blowing agent. The mould may comprise metal backing plates with a resilient cavity containing former e.g. of silicone rubber therebetween, one of the plates being apertured for the injection of the composition.
Patent GB-1518979-A (GB)
Title: Process for continuous electrolytic colouring of almuminium or aluminum base alloy strip and wire
IPC: C25D11/22
Filed: 1975-11-14
Abstract: 1518979 Electrolytically colouring anodized Al SUMITOMO ALUMINIUM SMELTING CO Ltd 14 Nov 1975 [19 Nov 1974 (2)] 47003/75 Heading C7B Anodized Al or Al alloy wire or strip is continuously passed as cathode through an electrolytic colouring bath containing selenious acid or a salt of Ni, Co, Sn, Fe or Cu, using direct current (which may be non-uniform), the bath being supplied to at least one surface of the Al from an opening 9 in a hollow body 7 which contains an anode 8. One or more hollow bodies may be used above and/or below the Al. The bodies may be immersed in the bath as shown, or may direct the bath on to the Al above a collecting vessel Fig. 2 (not shown), in which case two pairs of rollers (11,11'), between which the Al passes, act as a temporary reservoir for the bath. The opening may be a slit transverse to the Al, and may include barriers which lead to a striped coloration on the Al.
Patent GB-1476860-A (GB)
Title: Substituted quinoxaline-2-carboxamide-1,4-dioxides
IPC: C07D241/52
Filed: 1975-11-18
Abstract: 1476860 Substituted quinoxaline-2-carboxamide-1,4-dioxides PFIZER Inc 18 Nov 1975 [19 Nov 1974] 47539/75 Heading C2C Novel compounds of the Formula I wherein X is a 6- or 7-position substituent which is a formyl, acetyl, hydroxymethyl or 1- hydroxyethyl group or a radical of the Formula II wherein Y is hydrogen or methyl, R 1  is hydrogen or methyl, R 2  is hydrogen or alkyl, R 3  is hydrogen, alkyl or (CH 2 ) n OH, (CH 2 ) n OCH 3 , (CH 2 ) n - NH 2 , (CH 2 ) n NHCH 3  or (CH 2 ) n N(CH 3 ) 2  in which n is 2 or 3 or R 2  and R 3  together with the nitrogen to which they are attached form a pyrrolo, pyrrolidino, piperidino, morpholino, thiomorpholino or piperazino, optionally N-substituted with alkyl, hydroxyalkyl, alkanoyl, or carbalkoxy wherein alkyl and alkanoyl groups have up to 4 carbon atoms and the pharmaceutically acceptable acid addition salts of compounds wherein R 3  is #-aminoalkyl, and those compounds wherein R 2  and R 3 , when taken together with the nitrogen atom to which they are attached, form a piperazino group, may be prepared (1) by ring expansion of an appropriately substituted benzofuroxan with (a) diketene and R 2 R 3 NH, (b) an appropriate #- ketoamide of the formula (c) an acetoester followed by reaction with an amine R 2 R 3 NH or (d) an appropriate pyruvate ester R 1 CH 2 COOR where R is an alcohol residue in the presence of an amine R 2 R 3 NH, or (2) by reacting an ester of an appropriate 2-quinoxaline carboxylic acid-1,4-dioxide with HNR 2 R 3 , and optionally hydrolysing of the radical II to formyl or acetyl. 5(6) - Acetylbenzofuroxan is prepared by diazotizing 3 - nitro - 4 - aminoacetophenone, followed by reaction with sodium azide to form 4 - acetyl - 2 - nitro - phenylazide, followed by heating to cyclise the product. The phenylazide is also prepared by reacting 4-chloro-3-nitroacetophenone with sodium azide. 5(6) - Acetyl - benzofuroxan ethylene ketal and 5(6)-formyl-benzofuroxan ethylene ketal are prepared by reacting the appropriate 5(6)-acyl. benzofuroxan with ethylene glycol. 5(6) - (1 - Hydroxyethyl) - benzofuroxan and 5(6) - hydroxymethyl - benzofuroxan are prepared by reducing the appropriate 5(6)-acylbenzofuroxan. Pharmaceutical compositions of the compounds I with the usual excipients show antibacterial and growth promotant activity when administered orally, parenterally or topically. The compounds can be incorporated into feeds and feed supplements. The compound can also be used as an in vitro antibacterial agent.
Patent GB-1495179-A (GB)
Title: Flare gas burner
IPC: F23C99/00
Filed: 1975-11-20
Abstract: 1495179 Flare stack burners COMBUSTION UNLIMITED Inc 20 Nov 1975 [14 March 1975] 47812/75 Heading F4T A flare stack comprises a plurality of coaxial pipes for the upward delivery of waste gas, steam and induced air, with sound absorbing material 45, 46 adjacent inlets for the air. The waste gas is supplied to pipe 10, whose upper end is provided with swirl vanes 15, and steam is ejected from holes 22 in the tip 21 of pipe 20 which is inside a pipe 12 within the pipe 10, and from holes in pipe 25 which surrounds the lower end of the pipe 10. The steam induces air to flow inside the pipe 12 (which has a flared upper end 14) and in the space between the pipe 10 and outer pipe 16. The lower end of the pipe 16 has a flared housing 40 and is surrounded by a housing 50. These together define the inlets for induced air and are internally lined with sound-absorbing material 45, 46, such as ceramic fibre mat. A plurality of pilot burners 30 with igniter tubes 35 is secured to the outside of the pipe 16. Specification 1,495,180 is referred to.
Patent GB-1206430-A (GB)
Title: Electro-hydraulic servo valve
IPC: F15B5/00
Filed: 1967-10-20
Abstract: 1,206,430. Two-stage servovalves. WESTON HYDRAULICS Ltd. Oct.20, 1967 [Oct.31, 1966], No.47929/67. Heading G3P. An electro-hydraulic servovalve has a flapperarmature member 42, 44 supported by a sealing diaphragm 46 having a resilient control zone 78 Fig.7 provided on one or both sides with thickened radial regions 80 which act as a torsion bar and define the pivot axis. The flapper co-operates with nozzles 20a, 20b and the back pressure at the latter positions spools 50a, 50b to connect work ports 60a, 60b to supply ports 30a, 30b or exhaust ports 72a, 72b. The spools have flow shields 56a, 56b and supply a feedback force to the flapper through springs 58a, 58b. The supply is through a filter 28. The diaphragm 46 has semi-circular positioning grooves 82a, 82b which co-operate with housing grooves to define bores for balls (86a, 86b).
Patent GB-1279985-A (GB)
Title: Control system
IPC: G05B19/18
Filed: 1969-10-01
Abstract: 1279985 Programmed control of machine tools SUNDSTRAND CORP 1 Oct 1969 [22 Oct 1968] 48126/69 Heading G3N One or more machine tools 62, remotely located on a factory floor 64, are controlled from a high-speed, general purpose, digital computer 60. A multiplex channel 1 of the computer is connected through a data link to a card-reader and punch 70, a print unit 71 and a key-board 72 which provide facilities for entering data into the system. An external DISK store 74 is connected to the computer through a control unit 75, to a selector channel 2. The computer is connected from a selector channel 1 to an interface 78 which communicates with each machine control unit 80 through a logic unit 81 and a data-link designated cable two. Each logic unit 81 communicates with machine tool control console 82 and an operator's console 83 over a long data-link designated cable three. A mobile communications terminal 84 is positionable adjacent to a machine tool to facilitate insertion of operator generated instructions. The logic 78 cycles through the addresses of the units 81 and is stopped to enable communication between a particular machine and the computer which, after an exchange of information, goes offline and services other machine or runs background programmes. The logic 78 and units 81 operate with high-rate binary signals and are located near computer 60 or an electrically quiet location a short distance therefrom. The signals from units 81 to the shop floor machine tools are phase-shifted squarewaves for areas control and low-rate binary signals for auxiliaries.
Patent GB-1422817-A (GB)
Title: Rotary hot-gas engine
IPC: F02G1/04
Filed: 1973-10-16
Abstract: 1422817 Rotary positive-displacement fluidmachines C MALAVAL 16 Oct 1973 [19 Oct 1972] 48228/73 Heading F1F [Also in Division F4] In a hot-gas engine at least one rotor with fixed blades 12, or 13, 46, 47, 48 is secured to an output shaft 2 and disposed eccentrically in a chamber formed in a body 3, or 4, so as to form a liquid ring 45 when revolving and thus define working chambers 51 .. 54 between the blades. Heat exchangers 25, 25' serving as hot and cold sources, respectively, may communicate with the working chambers through pipes 21 .. 24 and ports 61 .. 64 in the body 3, or 4, and ports 71, 72, 73 disposed in an end wall, or "rim", 15, or 16, between the blades. The or each rotor may be pressed against a boss 20 by a spring 18. Fins 46' may be placed between the blades and are acted upon by liquid in the ring displaced by the hot-gas. A bye-pass valve 41 may be provided to facilitate regulation of the temperature of the heat exchanger 25 at low engine speeds.
Patent GB-1473597-A (GB)
Title: Method of removing a valve assembly mounted on an internal combustion engine cylinder head and engine for carrying out the said method
IPC: B25B27/24
Filed: 1974-11-07
Abstract: 1473597 Removing valves from IC engines SOC D'ETUDES DE MACHINES THERMIQUES 7 Nov 1974 [9 Nov 1973] 48259/74 Heading FIB In order to remove an inlet or an exhaust valve assembly 28a, b, c and valve 14 from the cylinder head or crank-case of an I.C. engine which includes a rocker arm 18 reciprocated by a push-rod 32 to operate the valve 14, the push-rod 32 is mounted so that it may be moved as shown in broken lines 32'. Firstly, a clearance adjustment screw 24, is loosened allowing the point 36 to disengage pushrod 32. After loosening a locking cover 48, the push-rod 32 and a surrounding protective jacket 32a are moved to the position 32' shown in broken lines, to allow the rocker arm 18 to pivot about axis 18a into a position 18" whereupon the valve 14 and its chest 28a, b, c can be withdrawn vertically. A bellows 50 may cover the elongate aperture 40 provided in the cylinder head or crankcase to exclude dirt.
Patent GB-1298484-A (GB)
Title: Methods of making metallized capacitors
Inventor: RAYBURN CHARLES CALVIN
IPC: H01G13/02
Filed: 1970-10-12
Abstract: 1298484 Capacitors ILLINOIS TOOL WORKS Inc 12 Oct 1970 [14 Oct 1969] 48408/70 Heading H1M A plurality of identical capacitors are formed from a supply of dielectric strip material having along its length alternate metallized portions and clear areas, each metallized portion comprising a metallized area on one side overlapping a metallized area on the other, the method comprising winding a metallized portion and at least part of a clear area into a capacitor roll, the clear part providing several outer protective layers, cutting the strip and at the same time heat sealing the cut end to the underlying layer, then repeating the winding, cutting and sealing. As shown, the metallized areas 22, 27 on strip 10 have unmetallized margins, e.g. 26 at opposite edges, and the strip is wound with an unmetallized strip 14. The ability of unmetallized strip to transmit light, detected by photo-cell 42, is used to control the winding. Preferably the cutting and sealing, made by heated cutter 48 leaves part of the clear area to provide an insulating core for the succeeding winding. The loose ends of the strips are collected by pin 56 and follower 54 for attachment to two-part mandrel 16a, 16b. Strip 14 may be polystyrene or polypropylene and the metallized strip polyester. The use of an unmetallized strip may be avoided by attaching the two-part mandrel at the mid-forms of the metallized portion (Fig. 3, not shown).
Patent GB-1018133-A (GB)
Title: Improvements in or relating to unsaturated polyesters
IPC: C08G63/54
Filed: 1963-12-09
Abstract: Unsaturated polyesters are made by polycondensing (a) an a ,b -unsaturated dicarboxylic or anhydride (e.g. maleic, fumaric, itaconic, citraconic or mesuconic acids) and (h) 2,2-dimethyl - 4 - methyl - hexane - 1,6 - diol and/or 3,3 - dimethyl - 5 - methyl - hexane - 1,6 - diol. Part of the unsaturated dicarboxylic component may be replaced by a saturated dicarboxylic acid or an anhydride or dimethyl ester thereof (e.g. succinic, sebacic, adipic, phthalic, isophthalic or terephthalic acids).  The polyesters may be stabilized with hydroquinone or p-tertiary butylcatechol and latter dissolved in polymerizable monomers (e.g. styrene, vinyl toluene, divinyl benzene, dialkyl isophthalate, diallyl terephthalate, triallyl cyanurate, methyl methacrylate butyl methacrylate acrylamide, a mixture of vinyl toluene and triallyl cyanurate, or a mixture of styrene and diallyl terephthalate).  Hardening may then be effected by addition of organic peroxides, organic hydroperoxides or azo compounds and, possibly, a heavy metal compound or a tertiary amine.  Fillers (e.g. a mixture of silicon carbide, powdered quartz and asbestine) may be added. The polymerizable compositions may be used to impregnate glass fibre mats.
Patent GB-1417218-A (GB)
Title: Preparation of films with a closed cellular structure made of  polyurethanes
IPC: C08J9/10
Filed: 1973-10-24
Abstract: 1417218 Foamed polyurethane coatings RHONE-POULENC SA 24 Oct 1973 [25 Oct 1972] 49562/73 Heading B2E [Also in Divisions B5 C3 and Dl] Coated articles are prepared by applying to a support a solution in an organic solvent of a linear polyurethane, containing a heatdecomposable pore-forming agent having a decomposition temperature of at least 180‹C and optionally, an activator for the poreforming agent and/or a filler, heating the assembly first to a temperature sufficient to remove the solvent but insufficient to decompose the pore-forming agent and then heating the assembly to a temperature sufficient to decompose the pore-forming agent. The support may be a plastics film, a woven or non-woven fabric or paper. Preferred poreforming agents are nitrogen-releasing compounds e.g. azodicarbonamide, azo-bis-isobutyrodinitrile, p-toluene-sulphoazide, 1, 1'- azo-1-cyano-cyclohexane and diisopropyl azodicarboxylate. Drying of the solution takes place suitably at a temperature below 115- 120‹C and formation of the cellular structure at a temperature of 180 to 220‹C.