baber/WOPTO huggingface dataset:
Patent GB-1536568-A (GB)
Title: Thermo-optic smectic liquid-crystal storage display
IPC: C09K19/12
Filed: 1975-12-22
Abstract: 1536568 Controlling light THOMSON-CSF 22 Dec 1975 [24 Dec 1974] 52507/75 Heading G2F In a device for recording images, a smectic liquid crystal layer at a first temperature in the smectic range is disposed between walls treated so as to impose on the smectic molecules a tendency to adopt a first uniform orientation, and is temporarily subjected to a first electric field (and if necessary a temporary heating above the smectic range, e.g. to a nematic phase) such that the molecules adopt a second uniform alignment which is normal to the first and stable at the first temperature. The temperature of selected parts of the layer is subsequently temporarily raised from the first to a second value in the smectic range so that in such parts the smectic molecules reorientate at least partly towards the first orientation. Partial orientation always occurs at the edges of such parts, giving a light scattering focal conic texture, but full conversion to the (clear) first orientation may occur at the centre of larger areas. Thus if the heating step involves optical absorption e.g. of a modulated scanning laser beam or light projected through a transparency by tin oxide layers used also as electrodes, the beam is gated on and off, or the transparency is projected via a screen to provide sufficiently small heated prints. During projection of the stored image, spatial filtering may remove the screening effect. A matrix of resistors spaced from the adjacent tin oxide layer by a silicon insulating film may alternatively be used to heat selected parts of the layer. The precise area of the heated print is controlled by the area to which heat is directly applied, and the intensity and duration of such heating, any of which may be varied. The spacing or size of recorded points may be controlled to provide a grey scale or half tone image. The stored image may be modified by over-writing with a further image in similar manner or by selective erasure. The latter is effected by applying to the layer an electric field of lower intensity than the first field and heating selected parts to a temperature in or above the smectic range (depending on whether heating was required when the first field was applied). As particularly described the smectic material was 4-octyl-4'-cyano-biphenyl with a smectic A phase requiring only an electric field to produce the second alignment of the tin oxide layers were used for resistance heating to maintain the layer at the first temperature of #26‹C. Smectic C materials could be used but uniform molecular alignment is more difficult to obtain. The first and second alignments were homogeneous and homotropic respectively, the former being effected by treating the walls by rubbing, or with N-methyl- 3-aminopropyltrimethoxysilane, or by oblique vapour deposition of SiO. Wall treatment with a different organosilane to produce a first homotropic alignment is also referred to.
Patent GB-1528470-A (GB)
Title: Preconditioning treatment of coal to minimize agglomeration
IPC: C10G1/06
Filed: 1975-12-23
Abstract: 1528470 Coal pretreatment for fluid bed reactors UNION CARBIDE CORP 23 Dec 1975 [27 Dec 1974] 52598/75 Heading C5E A method of reacting coal particles in a fluidized-bed reactor wherein the coal particles are pre-conditioned to substantially prevent agglomeration of the coal particles in the fluidized-bed comprises (a) preheating a dense flow (defined) of said particles in the absence of oxygen at a first temperature for a preheat time sufficiently brief to avoid significant agglomeration of said particles; (b) preheating an oxygen-containing gas to a temperature substantially equal to said first temperature; (c) introducing said preheated particles and said preheated oxygen-containing gas into a vertical standpipe in an upwards direction, said gas having a superficial gas velocity greater than the free fall velocity of the largest of said coal particles, the amount of oxygen in said gas and said superficial gas velocity being controlled so that said oxygen is substantially consumed exothermically at a second temperature greater than said first temperature and within the plastic transformationtemperature of said particles; (d) reacting said particles with a reagent in said fluidized bed. Significant devolatilization of the coal in the oxidation standpipe is avoided by appropriate selection of preheat temperatures for the coal and the oxygen-containing gas, or by injection of an inert fluid (e.g. water) into the standpipe. The first (preheat) temperature of the coal is preferably 280-420 C., and the second temperature in the standpipe is 380-480 C. during oxidation, falling to 300-400 C. when the oxygen has been consumed. The process is particularly applicable as a pretreatment for fluidized bed hydrocarbonization of sub-bituminous or bituminous coals.
Patent GB-1395775-A (GB)
Title: 17-esters of 6alpha, 9alpha-difluoro-21-desoxyprednisolone
IPC: A61K31/57
Filed: 1972-11-15
Abstract: 1395775 Anti-inflammatory medicines WARNER-LAMBERT CO 15 Nov 1972 [19 Nov 1971] 52687/72 Heading A5B [Also in Division C2] A topical anti-inflammatory composition comprises a carrier, a steroid of formula: (wherein R is phenyl or C 2-3  alkyl), and optionally an antibiotic such as neomycin sulphate, colistin sulphate, bacitracin, gramicidin or chloramphenicol.
Patent GB-1156610-A (GB)
Title: Improved Bale Gathering and Stacking Machine
Inventor: STROUP HOWARD ROBERT
IPC: A01D85/00
Filed: 1967-11-21
Abstract: 1,156,610. Bale picking up and stacking apparatus. H. R. STROUP. 21 Nov., 1967 [22 Nov., 1966], No. 53014/67. Heading B8E. Tractor drawn apparatus picks up bales from the field, forms them into a vertical column and discharges a batch of columns to form a stack on the ground. The bale pick-up mechanism 38 is positioned to one side of the tractor 30 and comprises bale orienting arms 39, 40 and rotary feed elements 41, 42, 44 which deliver the bales to a stacking chamber 36. As the first bale arrives in the chamber 36 it passes a trip mechanism which stops the feed elements 41, 42, 44 and actuates a lift platform 45 which raises it past pivoted plates 49-51 which hold it elevated as the platform 45 returns and restarts the feed elements. A second bale actuates the trip mechanism similarly and the platform 45 rises again and the first bale then actuates a trip arm 220 so that as the third bale actuates the trip mechanism the platform 45 is not actuated but push members 52, 54 are actuated to push the formed column of bales laterally on to a carrying bed 32. When a batch of columns fills the bed 32 they are driven to a desired position where a pusher frame 58 is manually actuated to push the stack on to the ground. The rotary feed elements and pushers are hydraulically driven, under the control of valves actuated by the trip mechanisms, from the tractor power take-off.
Patent GB-1525239-A (GB)
Title: Cationic azo dyestuffs derived from triazoles and tetrahydroquinolines
IPC: D06P3/00
Filed: 1974-12-11
Abstract: 1525239 Cationic azo dyestuffs derived from triazoles and tetrahydroquinolines IMPERIAL CHEMICAL INDUSTRIES Ltd 14 Nov 1975 [11 Dec 1974 20 March 1975 27 May 1975] 53550/74 11639/75 and 23164/75 Heading C4P Novel dyestuffs, devoid of carboxylic and sulphonic acid groups, have the formula wherein A is the radical of a quaternized triazole; R<SP>3</SP> is a non-ionogenic substituent and each R<SP>3</SP> is the same or different; R<SP>4</SP> is H or optionally substituted alkyl, alkenyl or cycloalkyl; each R<SP>5</SP> is the same or different C 1-4  alkyl; and X is an anion, but the dyestuffs disclosed and claimed in Specification No. 1,440,159 are disclaimed. The novel dyestuffs are prepared by quaternization of dyestuffs of the above formula having no charge or anion where A is the radical of a triazole having at least one unsubstituted nitrogen atom, which in turn are prepared by conventional diazotization and coupling methods. The novel dyestuffs have use in the coloration of synthetic polymeric materials, particularly those based on polymers and copolymers of acrylonitrile and dicyanoethylene and also acid-modified polyesters and polyamides. Specifications 1,274,501 and 1,423,845 are also referred to.
Patent GB-1239994-A (GB)
Title: Method for producing detergent-grade alkylate
Inventor: CARSON DON BURTON
IPC: C07C15/107
Filed: 1968-11-15
Abstract: 1,239,994. Detergent alkylate. UNIVERSAL OIL PRODUCTS CO. 15 Nov., 1968 [20 Nov., 1967], No.54209/68. Heading C5E. Detergent alkylate is produced by a process comprising the following steps: (a) continuously introducing into a dehydrogenation zone 28 an intermediate-boiling range n-paraffin feed (e.g. C 11-13 ) via line 17; (b) passing the effluent from zone 28, together with alkylatable aromatic, e.g. benzene or a homologue thereof, into alkylation zone 31; (c) recovering a first alkylate from the effluent from 31; (d) introducing during a predetermined period of time, from tank 22 via line 24 an valve 25, a relatively low-boiling n-paraffin feed (e.g. C 10 ) into zone 28 along with the intermediate fraction; (e) during operation according to step (d) separately recovering a second alkylate; (f) stopping step (d) for a predetermined period of time, during which first alkylate is again produced; (g) thereafter introducing during a predetermined period of time, from tank 23 via line 26 and valve 27, a relatively high-boiling nparaffin feed (e.g. C 14 ) into zone 28 along with the intermediate fraction; (h) during operation according to step (g) separately recovering a third alkylate; (i) stopping step (h) for a predetermined period of time, during which first alkylate is again recovered; and (j) thereafter repeating the steps from (d) onwards. Steps (f) and (i) are preferably of such length as to purge low-boiling and highboiling paraffins and corresponding alkylate, respectively, from the system. Catalysts in zones 28 and 31 are conventional. The Figure shows n-paraffin extraction (e.g. using molecular sieves) and fractionation stages, and the various recycles of unused reactants. The first, second and third alkylates may be blended as desired to produce the final detergent alkylate.
Patent GB-1151055-A (GB)
Title: Improvements in or relating to Electric Connectors.
Inventor: CONNOLLY DAVID CHARLES ANTONY
IPC: H04M1/02
Filed: 1966-12-05
Abstract: 1,151,055. Electric connectors. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 5 March, 1968 [5 Dec., 1966], No. 54344/66. Heading H2E. [Also in Division H4] An electric connector 2, Fig. 2, for connection between a two-wire telephone line (not shown) and a three-line telephone receiver cable 4 comprises three pairs of terminals 13 and 14, 15 and 16, 17 and 18, connected together with metal strips 19. The three first terminals 14, 16, 18 are connected to the wires of the three-wire cable 4 and two of the second terminals 13 and 17 connected to a three-terminal attenuator 25. The remaining attenuator terminal 35 and the terminal 15 are connected to the two telephoneline wires. The attenuator, Fig. 4, comprises three resistors 30 in a T-network and is secured only by its connections to the terminals, so as to be readily replaceable. In an example, the series arm resistors may be 30 ohms and the shunt resistors 1300 ohms. Further receivers may be connected in parallel from terminals 14, 16 and 18.
Patent GB-1376921-A (GB)
Title: Method of and apparatus for coating particles especially nuclear fuel particles for nuclear reactors
IPC: G21C3/62
Filed: 1971-11-23
Abstract: 1376921 Fluidized beds K E M F O R SCHUNGSANLAGE JULICH GmbH 23 Nov 1971 [19 Dec 1970] 54404/71 Heading B2L [Also in Divisions C7 F4 and G6] Apparatus for coating nuclear fuel particles comprises a reaction tube, the lower conical end 1 of which is provided with tangential bores 2 directed obliquely downwards so that a carrier gas, e.g. argon passing through the bores 2 imparts a spinning movement to the particles in the tube. A nozzle 4 is attached to the bore 3 and has a central inlet 6 for the introduction of coating gas, and may have one or more helical inlets 5 for carrier gas. The coating is effected by pyrolitic decomposition of the coating gas, which may be a hydrocarbon and/or a methylchloride silane, and is carried out between 1000‹ and 2100‹C.
Patent GB-1534267-A (GB)
Title: Fencing system
IPC: E04H17/16
Filed: 1975-12-18
Abstract: 1534267 Fencing GREATER LONDON COUNCIL 18 Dec 1975 [20 Dec 1974] 55230/74 Heading E1B Parts for forming a fence comprise first identical elongate hollow members A having a mouth extending throughout their length, and second identical elongate members B. having their ends slidable along the interior of members A but not removable at right angles to members A. The members A or B may be horizontal or vertical in use the member A preferably being bolted to additional support posts and/or mounted on fixing blocks on support posts. Spacer blocks of similar shape to the end of a member B are used to space members B. In a fence with members B horizontal their edges may be bevelled at 30‹. The parts may also be used for, sheds, garages, compost frames, motorway noise or light barriers. The members may be erected to form a cavity wall and the space filled with sand. The members are made of G.R.C., wood or plastics.
Patent GB-1453691-A (GB)
Title: Anvil-block hammer
IPC: B21J13/06
Filed: 1974-12-23
Abstract: 1453691 Hammers VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI 23 Dec 1974 [22 Dec 1973] 55478/74 Heading B3H An anvil block hammer has a frame integral with the anvil block 1 which is supported by at least two pairs of double armed levers 2 each connected at one end to the floor and actuated by hydraulic cylinders 13. To ensure even raising of the anvil block the levers or their raising mechanism of each pair are connected by a torsion bar 9. In one embodiment, Fig. 1, the cylinder 13 acts on a lever 10 fixed to the torsion bar 9 which drives cranks 7 or a cam, Fig. 2 (not shown), to raise a slide block 5 connected by pull rods 4 to the double armed levers 2. Alternatively the torsion bars can be between the pivots of the levers of the anvil block, Fig. 4 (not shown), or the floor support (3), Fig. 5 (not shown).
Patent GB-1484329-A (GB)
Title: Ophthalmic and otic preparations
IPC: A61K31/18
Filed: 1974-12-23
Abstract: 2,4-Diamino-5-(3',4',5'-trimethoxybenzyl)pyrimidine, which is intended as a potentiator for sulphacetamide contained in a pharmaceutical preparation for administration to the eye or to the ear, which additionally contains polymixin in the form of a pharmaceutically acceptable salt, is prepared by reacting an appropriately substituted  beta -aminoalpha -benzylacrylonitrile of the accompanying formula, in which Z denotes an aliphatic, aromatic or heterocyclic amino group -NR'R'', where R' or R'' can also denote hydrogen, with guanidine. <IMAGE>
Patent GB-1165610-A (GB)
Title: Block Copolymerisation.
IPC: C08F255/00
Filed: 1967-12-07
Abstract: 1,165,610. Block copolymerization. REXALL DRUG & CHEMICAL CO. 7 Dec., 1967 [8 Dec., 1966], No. 55623/67. Heading C3P. Block copolymers are obtained by a process comprising (a) forming a mixture of a Ziegler catalyst and a polymer of an a-olefin, said mixture being free of a-olefin monomer; (b) either simultaneously treating said mixture with 0 2  and ammonia or an amine, or first with the ammonia or amine and subsequently with O 2;  and (c) removing 0 2  and ammonia or amine and adding a polar comonomer containing ethylenic unsaturation to the mixture and copolymerizing said comonomer with said polymer of an a-olefin to form a block copolymer. The copolymer may be after-treated with a metal compound, a dyestuff, or an anti-static agent. Suitable a-olefins are ethylene, propylene, butene - 1, pentene - 1, hexene - 1, dodecene- 1, butadiene, isoprene, 1,5 - hexadiene, 4- methyl - pentene - 1, 3 - methyl - butene - 1, 2 - ethyl - hexene - 1 and vinyl cyclohexane. The catalysts comprise the conventional transition metal salt-organometallic compound mixtures. The amines may be piperidine or alkyl amines e.g. methyl and trimethylamine. A very wide variety of polar comonomers are mentioned, those exemplified being acrylonitrile, dimethylaminoethyl methacrylate, methyl methacrylate, isobutyl methacrylate, styrene, ethyl acrylate, butyl acrylate, 2-ethylhexylacrylate, methacrylic acid, acrylic acid, vinyl acetate, acrylonitrile and methyl methacrylate together, styrene and methyl methacrylate together, and acrylonitrile and styrene together. Propylene is the preferred a-olefin and in the examples polypropylene or polypropylene/polyethylene block polymer are used in step (a). The mixture of step (a) may be obtained by polymerization of the α-olefin in the presence of the Ziegler catalyst or by direct addition of the catalyst to preformed polymer.
Patent GB-1272497-A (GB)
Title: Stable salts of amines
IPC: C07C309/65
Filed: 1970-11-25
Abstract: 1,272,497. Sulphonic acid salts of amines. YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd. 25 Nov., 1970 [2 Dec., 1969; 12 Aug., 1970], No. 56092/70. Heading C2C. The novel, title salts are made by reacting R-N(CH 2 CH 2 CH 2 OSO 2 R<SP>1</SP>) 2  (R is H or Me, R<SP>1</SP> is Me, Et or Pr) with a C 1  or C 2  alkanesulphonic acid, sulphamic acid, cyclohexylsulphamic acid, camphor-#-sulphonic acid, 4,4<SP>1</SP>-biphenyldisulphonic acid, naphthalene mono- or di-sulphonic acids or optionally mono- or di-substitutedbenzene-mono- or di-sulphonic acids (the substituents are C 1  to C 12  alkyl, MeO, Cl and/or NO 2 ). Pharmaceutical preparations suitable for treating, e.g. leukemia, sarcomas, myoma, carcinoma, chorioepithelioma malignum, seminoma, Hodgkin's disease and polycythemia contain the salts as active ingredient; administration may be orally or by injection.
Patent GB-1409899-A (GB)
Title: Calculating apparatus
IPC: H05B41/32
Filed: 1972-12-05
Abstract: 1409899 Cameras HONEYWELL Inc 5 Dec 1972 [6 Dec 1971] 56144/72 Heading G2A [Also in Division G4] The desired f number of a camera lens is calculated by setting a pointer 3 to a mark 5 representative of a desired power level of a light producing means (not shown), aligning a value on scale 7 corresponding to the speed of the film with the pointer 3, rotating knob 12 until a chosen range (camera to subject) represented at 21 appears in window 11, and reading the value (f number) on scale 9 which is aligned with the pointer 22 of the information displayed in the window 11. The dial 6 and the knob 12 may be connected by racks and gears, Fig.3 (not shown), to lens aperture adjusting mechanism. Light from the subject passes through the knob 12 to a sensor 26 connected by a cable 27 to a circuit (not shown) for determining the length of time for which the light producing means remains activated. The effective sensitivity of the sensor is modified by attenuators 20, 23, the positions of which are controlled by the knob 12 and the pointer 3 respectively.
Patent GB-1377967-A (GB)
Title: Control apparatus for controlling the dispensing of feed to animals  in stalls
IPC: A01K11/00
Filed: 1971-12-03
Abstract: 1377967 Feeding animals G A RIGBY and B K WALKER 17 Nov 1972 [3 Dec 1971] 56172/71 Heading A1M Apparatus, for dispensing feed according to the individual requirements of cows in rotary or in-line parlours, comprises a peg-board matrix PB having pegs Y positioned to relate each cow, identified by a reference number, to a selected one of six feed quantities, and switches S, W which are manually actuated in accordance with the cow's reference number. A single feed dispenser is used, which may either be stationary and supply feed to a stall as a rotary parlour rotates to align the stall with the dispenser, or the dispenser may traverse along stationary in-line stalls. As shown the feed quantity is determined by cam switches CT on a common shaft driven by a motor T, the switches closing for different times and actuating an auger-type dispenser for a corresponding time. In another embodiment, a ram-type dispenser is employed and the quantity dispensed determined by six solenoids giving different strokes to the ram.
Patent GB-1248589-A (GB)
Title: Pipeline sphere or pig diverters
Inventor: HUNTER KEITH ELLIS
IPC: B65G53/56
Filed: 1968-12-04
Abstract: 1,248,589. Pneumatic conveyers. GENERAL DESCALING CO. Ltd. 4 Dec., 1968, No. 57570/68. Heading B8A. [Also in Division F2] A diverter for selectively permitting the passage of material or solid objects between one connection to the diverter and one of two or more further connections comprises a housing 1 containing a tubular diverter member 10 mounted in bearings 8, 9 for rotation by an hydraulic motor driving a toothed flange 13, there being no seals between the ends of the member 10 and the housing. The member 10 carries arms 16 supporting a self-aligning bearing 17 on which is mounted a valve disc 18 adapted to seal the outlet 6 or 7 when the diverter member 10 is aligned with the other outlet. In a second embodiment, Fig. 2 (not shown), a three-way diverter comprises a curved tubular diverter member rotatably mounted in a housing and located in alignment with any of the three outlets by a ball-and-detent arrangement. Two or more diverters may be connected in series, Fig. 3 (not shown).
Patent GB-1331243-A (GB)
Title: Process and apparatus for the uniform alkalization of cellulose
IPC: C08B1/08
Filed: 1970-12-07
Abstract: 1331243 Alkalization of cellulose KALLE AG 7 Dec 1970 [8 Dec 1969] 58021/70 Heading C3A In a process for the alkalization of cellulose, pulverized cellulose is introduced into a gas current directed upwardly into a reactor into which a solution of alkali hydroxide is sprayed downwards, the concentrations and flows being such that the cellulose particles are maintained in suspension until they are sufficiently wetted whereupon they sink out of further contact with the sprayed solution and can be removed from the bottom of the reactor. In the apparatus (see Fig.) a gas exit tube 5 and product take-off part 6 permit removal of production. Pulverized cellulose is introduced via hopper 2 and jet 3 into the reactor to meet the spray of alkali hydroxide from sprayer 4.
Patent GB-1444240-A (GB)
Title: Nuclear reactor
IPC: G21C15/24
Filed: 1973-12-17
Abstract: 1444240 Cooling nuclear reactors ASEAATOM AB 17 Dec 1973 [22 Dec 1972] 58362/73 Heading G6C In a water-cooled nuclear reactor, particularly a BWR or PWR, comprising a concrete pressure vessel in whose bottom wall (4) (Fig. 1, not shown) bores are provided accommodating water circulation pumps (6), each pump casing 5 contains a motor 9, 10 arranged to be cooled by flow of water through the casing, and a space 15 below the motor contains a cooling body 16 through which water can be passed. As shown, the body 16 is in the form of a helical tube surrounding a spacer 12 which supports the lower end of the pump shaft 8. Low pressure water can be circulated through the tube 16 to extract heat from high pressure water contained in the casing. In operation, rotation of an impeller 11  on the shaft 8 causes water in the casing to pass up over the motor 9, 10 to cool and lubricate the same; the water is returned to the base of the casing via a return line 17 incorporating filter 18. In order to extract residual heat from the motor when the pump ceases operation, and to conduct away heat transmitted down shaft 8 from the impeller (7) mounted within the pressure vessel, cooling water is passed through a conduit 19 surrounding the casing 5. The same water may be used to cool a pressure vessel internal liner (21).
Patent GB-1201260-A (GB)
Title: Purification of formic acid
IPC: C07C51/487
Filed: 1967-12-08
Abstract: 1,201,260. Purifying formic acid. UNION CARBIDE CORP. 8 Dec., 1967 [12 Dec., 1966], No. 61424/69. Divided out of 1,195,078. Heading C2C. Formic acid is purified by contacting it with hydrogen peroxide or an alkali metal dichromate at a concentration of from 0À2% to 5À0% by weight of the acid and heating the reaction mixture to a temperature of from 40 to 150 C. Water may optionally be added at some stage during the process in order to increase the efficiency thereof.