baber/WOPTO huggingface dataset:
Patent GB-999083-A (GB)
Title: Aquasols and processes for their preparation
IPC: C01G27/02
Filed: 1963-10-16
Abstract: A zirconium or hafnium oxide aquasol having amorphous particles 3-7 millimicrons in diameter is heated at 100-200 DEG  C. until particle growth and crystallization occurs.  A product aquasol containing monoclinic, or a mixture of monoclinic and tetragonal crystals is claimed per se.  The precursor aquasol may be that obtained by electrodialysis of a 0.01 to 1 molar solution of a basic zirconium or hafnium salt, or by passing such a solution through an anion exchange resin, and may be heated for 1 to 40 hours, suitably by autoclaving for 2 to 24 hours at 120-180 DEG  C. The product may be concentrated to at least 30% solids by vacuum evaporation at e.g. 40 DEG  C. and de-ionized by means of a weak anion exchange resin.  Concentration and de-ionization may also be effected by centrifuging, decanting and resuspending the particles in a smaller volume of water. Specification 905,920 is referred to.
Patent GB-904229-A (GB)
Title: Method of and apparatus for the continuous polymerization of 6-caprolactam and like monomers
IPC: C08G69/18
Filed: 1959-12-04
Abstract: <PICT:0904229/III/1> An apparatus for effecting the continuous anionic polymerization of lactams combined with the extrusion of the resultant polymer to obtain profiled articles comprises at least 2 storage tanks (A and B) for the monomer with the polymerization accelerator dissolved therein, heated metering pumps (E and F) adopted to force the mixtures from the tanks into the cylindrical polymerization reactor (H) provided with an external heating jacket (J), and an extrusion die (L) through which polymer formed in the reaction is forced by the pump.  In a modification, a rotatable shaft provided with a conver screw (K) over at least part of its length is located within the reactor.ALSO:<PICT:0904229/IV(a)/1> In a process for the continuous anionic polymerization of lactams, a reaction mixture of monomer and polymerization accelerator is forced in the absence of water into a reactor by means of a pump located at the inlet of the reactor, the reactor being maintained at a temperature sufficient to effect polymerization of the lactam and above the softening point of the polymer, the reactor being completely filled by the reaction mixture and the product polymer being forced by the pump through an extrusion device located at the outlet end of the reactor.  Specified polymerization accelerators are compounds of the general formula <FORM:0904229/IV(a)/1> where R and R1 are hydrogen or alkyl or R and R1 together form a hydrocarbon chain and X is an acyl, carbalkoxyl or cyano group, e.g. amixture of the sodium salts of 6-caprolactam and N-acetyl-6-caprolactam.  In the example, storage tank A contains 6-caprolactam and storage tank B contains a solution of the sodium salt of 6-caprolactam in 6-caprolactam, the reactants being fed via E and F into the reactor H and thence by the screw conveyer K through the extrusion nozzle L.
Patent GB-1119602-A (GB)
Title: Hydroxy (difluoramino) derivatives of ketones and their preparation
Inventor: GRIGOR JAMES
IPC: C06B43/00
Filed: 1961-11-30
Abstract: Hydroxy (difluoramino) derivatives of aliphatic ketones are prepared by reacting a ketone, other than acetone, with difluoramine. The ketone may be an acyclic monoketone RR1CO where R is methyl or ethyl and R1 is an alkyl group of not more than four carbon atoms, e.g. methyl ethyl ketone, or may be cyclohexanone, cyclopentanone, cyclohexane-1,4-dione, biacetyl, or acetyl acetone.  In examples, condensed difluoramine is refluxed with the ketone or a solution or suspension of the ketone, e.g. in ether or water.  Compounds prepared are 1-hydroxy-1-difluoramino-cyclopentane, 1-hydroxy-1-difluoramino-cyclohexane 1,4 - dihydroxy - 1,4 - bis(difluoramino) cyclohexane 2-hydroxy-2-fluoramino-butane, 2,4-dihydroxy-2,4 bis(difluoramino) pentane, and 2,3-dihydroxy-2,3-bis(difluoramino) butane.  The compounds are useful as propellent explosive ingredients.
Patent GB-1526725-A (GB)
Title: Elements for forming frames
IPC: E06B1/52
Filed: 1974-09-23
Abstract: 1526725 Door frame CATNIC COMPONENTS Ltd 11 Sept 1975 [23 Sept 1974 2 June 1975] 41345/74 and 23796/75 Heading E1J Channel sectioned head 34 jambs 1 are secured together by clips 106, 107 on the ends of the head 3, the brackets including a downwardly open resilient clip 114 for gripping the web of an adjacent jamb 1. The clips may be generally L-shaped, Fig. 5 (not shown) with one limb welded to the head and the other limb having a turned over portion forming the clip. Alternatively the clips may be generally channel sectioned having struck-out tabs retentively engaged in apertures in the upstanding legs of brackets 106, 107 welded to the heads. The lower ends of the jambs 1, 2 are initially spaced by W-sectioned tie-bars 8, 9 which are a push fit in brackets 11 clipped to the jambs. Reference is made under Section 8(1) to Specification 1484123.
Patent GB-1034933-A (GB)
Title: 4-demethylamino-4-substituted amino 6-demethyl tetracyclines
IPC: C07C233/00
Filed: 1963-10-21
Abstract: The invention relates to broad-spectrum tetracycline derivatives of formula <FORM:1034933/C2/1> where R is hydrogen or halogen; R1 is hydrogen or C1- 6 alkyl; R2 is C1- 6 alkyl or hydroxy C1- 6 alkyl, with the proviso that R1 and R2 cannot both be methyl.  Specified are 4-dedimethyl-amino - 4 - methylamino - 6 - demethyltetracyline and -chlortetracycline; 4-dedimethylamino - 4 - ethylamino - 6 - demethyltetracycline and -bromotetracycline; 4 - dedimethylamino - 4 - methylethylamino - 6-demethyl-tetracycline and -7-iodo-tetracycline; 4 - n - propylamino-, 4 - n - butylamino-, 4 -(beta hydroxyethyl)-, 4-(3-hydroxypropy)-, 4 - methyl - n - propylamino-, 4 - diethylamino and 4 - methyl - (beta hydroxyethyl)amino-derivatives of 4-dedimethylamino-6-demethyl tetracycline.  The 4-mono substituted amino compounds of formula <FORM:1034933/C2/2> where R is hydrogen or halogen and R2 is C1- 6 alkyl or hydroxy C1- 6 alkyl, are prepared by reductively aminating a 4-hydroxy-tetracyl-oxide of formula <FORM:1034933/C2/3> where R is as defined above, with a C1- 6 alkylamine or hydroxy C1- 6 alkylamine at 0 DEG  to 50 DEG  C. and 1 to 4 atmospheres.  Compounds of Formula I are produced by alkylating the corresponding tetracycline of Formula I in which at least R1 or R2 is hydrogen by means of (a) an alkyl halide, alkyl sulphonate or alkyl sulphate or (b) an alkanal (i.e. aldehyde) in a reducing medium at 0 DEG  C. to 50 DEG  C.  Hydrogen and a catalyst, zinc, tin or iron in hydrochloric acid, aluminium amalgam or formic acid are suitable reducing agents.
Patent GB-874081-A (GB)
Title: Coating out aqueous gelatin compositions including gelatin-silver halide emulsions
IPC: G03C1/043
Filed: 1957-07-30
Abstract: Gelatin compositions contain as coating aids compounds of the general formula:-  <FORM:0874081/IV (b)/1> wherein R is a saturated alkyl group of 8 to 18 carbon atoms, an unsaturated alkyl group or an alkyl phenyl group in which the alkyl substituents each have 5 to 18 carbon atoms and together have a total of at least 8 carbon atoms X is -O-, -O(CH2CH2O-)q (where q is 1 to 10), -CONH(CH2)p-O-(CH2CH2 O-)m (where p is 2 or 3 and m is 0 to 9), <FORM:0874081/IV (b)/2> where r and s are each at least 1 and (r + s) is 2 to 10, or <FORM:0874081/IV (b)/3> where (x + y) is 0 to 10, Y is H, an alkyl group of 1 to 5 carbon atoms, -COOM or -CH2COOM, m is 0, 1 or 2, n is 1 or, if X can have 3 groups attached thereto, n may be 2, and M is an alkali metal or an ammonium or substituted ammonium radical.  The group R may be lauryl, myristyl, cetyl, octadecyl, oleyl, linoleyl, linolenyl, ricinoleyl, p-t-octyl-phenyl, nonyl-phenyl or dodecyl-phenyl.  The compositions may be coated in a wet-on-wet coating process. Specifications 834,525 and 874,082 also are referred to.
Patent GB-1396356-A (GB)
Title: Pneumatic actuator
IPC: B41B17/06
Filed: 1972-09-07
Abstract: 1396356 Pneumatic actuators MONOTYPE CORP Ltd 15 Aug 1973 [7 Sept 1972] 41618/72 Heading F1D [Also in Division B6]  A pneumatic actuator, Fig. 2, in which a plurality of pistons, such as 3a, 3b, are selectively operable to provide a series of discrete positions for a connector 13 with respect to a datum, has a rack 17 attached to the connector 13 and a plunger 20 which engages teeth on the rack to lock the connector in the selected position. Movement of each piston is limited by a pin 9 attached thereto which moves in a slot 8, Fig. 3, in a portion 6 of the adjacent piston. Air is admitted to the clyinder 3 by selected valves 10 which are solenoid operated, Fig. 4 (not shown). The direction of movement of the rack 17 and its position are sensed by a  counter 36, a computer and a pair of light sources which co-operate with a pair of photo-cells. When the approximate position has been reached by the rack 17, the air supply to a piston 21 is cut-off so that the piston is urged downwards by a spring 23 and the plunger 20 engages the rack. Air is continuously supplied to the right hand side of the piston 3b so that when all the valves 10 are closed all the pistons are moved to the left. Movement of the rack is damped by a dashpot 14, Fig. 1 (not shown). The strokes of successive pistons are arranged according to a binary power series. The actuator may be used for moving matrix cases in photographic type-composing machines.
Patent GB-416438-A (GB)
Abstract: 416,438. Electromagnetic interrupters. WEST & CO., Ltd., A., and BREEZE, V., Lewes Road, Brighton. April 10, 1933, No. 10671. [Class 38 (v).] In order to make allowance for the slight increase in air gap of a trembler for an induction coil consequent upon the wearing of the contacts, the trembler blade 5 together with the armature 3 and movable contact 7 is mounted as a whole on an arm 4<b> of a member of relatively large inertia pivoted at x, the arm 4<a> being acted upon by an adjustable spring 6. The trembler normally vibrates as a whole about the end secured in the arm 4b without causing any appreciable movement of the member 4a, 4b but as the fixed and movable trembler contacts wear, so causing a slight increase in the air gap between the end of the cone leg 1<a> and the armature 3, the slight rotation of the member 4<a>, 4<b> consequent upon this contact wear releases in a small degree the tension exerted by the spring 6. Thus the slight increase of air gap and consequent reduction of magnetic force on the armature can, by appropriate adjustment of the initial tension of spring 6, be entirely compensated for by automatic adjustment in the tension of this spring. The pivot x may, as shown, be held in non-magnetic brackets 8 secured to the sides of the return limb 1<b> of the core 1.
Patent GB-1056945-A (GB)
Title: Process for the recovery of isobutene
Inventor: KOENNECKE HANS-GUENTHER
IPC: C07C7/171
Filed: 1965-10-01
Abstract: Isobutene is recovered from a sulphuric acid extract by introducing the extract into a vertical multi-stage reactor to which has been previously added 10-20% of its volume of water, heating the extract in each stage to about 80 DEG  C. in the first stage and increasing through the stages to about 125 DEG  C. in the last stage, collecting the vapours formed, condensing water and tert.-butanol, recycling at least part of the condensate to the first stage of the reactor and recovering isobutene from the uncondensed portion.  The sulphuric acid used is preferably of about 50% wt. concentration. Part of the water-tert. butanol condensate may be removed to recover tert.-butanol in which case an equivalent amount of water is added to the condensate recycled to the reactor.
Patent GB-1359017-A (GB)
Title: Low froth watersoluble dyeing auxiliaries
IPC: D06P1/613
Filed: 1971-09-08
Abstract: 1359017 Dyeing auxiliaries BADISCHE ANILIN-& SODA-FABRIK AG 8 Sept 1971 [9 Sept 1970] 41800/71 Heading D1B [Also in Division C5] Low-froth water-soluble dyeing auxiliaries comprise (a) 10-50% by weight of a non- ionic, anionic or cationic surfactant or a mixture of surfactants; (b) 10-50% by weight of an esterification product of 2 moles of a mixture of fatty acids containing not less than 30% oleic acid and one mole of a block copolymer carrying 2 terminal hydroxy groups of ethylene oxide and 1, 2-propylene oxide having a molecular weight of 1,500-7,000; and (c) 20-80% by weight of water and/or organic solvents. The block polymer in component (b) is preferably a copolymer having two terminal hydroxy groups and consists of 10 to 80% by weight of ethylene oxide units and 90 to 20% by weight of propylene oxide units, the preferred acid mixture being oleic acid and one or more of stearic acid, arachidic acid, behenic acid and cerotic acid, the preferred solvent mixture being water and/or one or more solvents selected from butyl diglycol, butyl triglycol, isopropanol, dipropylene glycol, butyrolactone, N-methyl pyrrolidone and dimethyl formamide. Further acids specified are soya bean acid, peanut oil acid, tallow acids obtained from bovine, pig or mutton tallow and palm oil acids. The compositions are used in dyeing natural and synthetic fibres.
Patent GB-1363173-A (GB)
Title: Data storage apparatus
IPC: G11B23/50
Filed: 1972-09-09
Abstract: 1363173 Coupling reels to shafts INTERNATIONAL BUSINESS MACHINES CORP 9 Sept 1972 41956/72 Heading F2U [Also in Division G5] A magnetic disc 3 is rotatable in a housing in which is mounted an air deflector blade 21 for directing air entrained by the rotating disc between the blade 21 and the disc 3 into a region of tubulence downstream of the blade, to dislodge particles from the disc surface. The blade is radial, and is inclined to the disc surface at an angle which decreases with increase in radial distance. As shown, the apparatus is similar to that described in Specification 1,200,572 and includes a disc cartridge 1 containing the disc 3 and removably located on a hub assembly 14, and a second magnetic disc 12 mounted on the hub assembly 14. Both discs 3, 12 have blades 21 on both sides thereof. The blade 21 above the disc 3 is pivotable, against a spring 23, to permit the disc 3 to be raised in the cartridge 1 to break magnetic clamp 6, 15 or 6, (5), Fig. 1 (not shown). Air impeller blades (16), Fig. 2 (not shown), depend from the hub assembly 14. Air is circulated thereby within an outer housing (17), Fig. 4 (not shown), through a filter (18).
Patent GB-1523613-A (GB)
Title: Horizontal deflection circuit for television receivers
IPC: H04N3/18
Filed: 1975-10-14
Abstract: 1523613 DC-DC converting INTERNATIONAL STANDARD ELECTRIC CORP 14 Oct 1975 [19 Oct 1974] 41986/75 Heading H2F [Also in Division H3] A horizontal deflection circuit for driving the horizontal deflection coils 91 of a TV receiver includes a commutating circuit comprising a switch 3, a commutating capacitor 51 and a commutating coil 4; a line-sweep output circuit comprising a switch 6 commutated by the commutation circuit for carrying deflection current, and capacitors 52, 53 for coupling the commutating circuit to the output circuit; and a storage inductor 21, in series arrangement for supplying energy to the circuit, having at least one secondary winding 22 which via a rectifier circuit 13 serves to provide energy for an audio output stage (not shown, connected at 15) which also receives energy via a further rectifying circuit 12 connected 90, 94 or 95 to the line sweep output stage whereby variations in picture width caused by changes in the energy required in the audio output stage are minimized, if not eliminated. A resistor 14 may be connected in series with the second rectifier preferably the rectifiers comprise a diode and capacitor as shown. The deflect on coil 8, EHT transformer 91, 92, 93 and storage capacitor 11 are conventional.
Patent GB-1400045-A (GB)
Title: Air cushion vehicle flexible inflatable puff-port system
IPC: B60V1/00
Filed: 1972-09-11
Abstract: 1400045 Air cushion vehicles TEXTRON Inc 11 Sept 1972 [25 May 1972] 42037/72 Heading B7K An air cushion vehicle supported on a bag and finger skirt 14, in which the bag is divided circumferentially into separate compartments, is provided with puff ports 30 having nozzles 32 for controlling the vehicle directionally and imparting roll thereto. Each nozzle 32 is connected to an associated skirt compartment and at its outlet, Fig. 4, comprises a flap valve 36 closed by internal pressure and opened by a cable and winch mechanism 40, 42.
Patent GB-1472960-A (GB)
Title: Continuous gas chromatography
IPC: G01N30/42
Filed: 1974-09-30
Abstract: 1472960 Gas chromatography MAGYAR ASVANYOLAJ ES FOLDGAZ KISERLETI INTEZET 30 Sept 1974 42343/74 Heading B1H A continuous gas chromatography apparatus comprises a movable filament or belt which passes through one or more gas absorption zones and one or more gas desorption zones, that part of the apparatus which joins the absorption zone or zones comprising at least one contriction having substantially the same cross-sectional shape as the cross-section of the filament or belt. As shown, samples carried by a carrier gas 12 flowing through absorption zone 5 are absorbed on the wetted surface of endless filament 14 and conveyed thereon to desorption zone 13 where they are removed by a further carrier gas 16. Constrictions 17, 18 may be from 1 to 1000 microns greater than the width of the filament. The zones 5 and 13 may be heated or cooled.
Patent GB-1509348-A (GB)
Title: Planting machine
IPC: A01C11/02
Filed: 1976-10-12
Abstract: 1509348 Planting machines LANNEN TENTAAT OY 12 Oct 1976 [30 April 1976] 42390/76 Heading AID A machine for planting plants 3 in a furrow 2 made by a ploughshare 1 comprises two spaced, parallel chains 6 running around wheels 8, 9 and provided with projecting lengths of flexible wire 7 spaced therealong; plants 3 are fed between the wires down a shoot 10, Fig. 1, or on a conveyor belt 14, Fig. 3, and are supported in the furrow 2 by the wires 7 which are arranged to have no horizontal speed relative to the ground subsequent to the delivery of plants to the furrow and to be withdrawn vertically from the plants. Inclined wheels 4 are provided to pack soil around the roots of the plants.
Patent GB-870475-A (GB)
Title: Improvements in or relating to variable inductor arrangements
IPC: H01F17/04
Filed: 1959-12-14
Abstract: 870,475. Inductors. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 14, 1959 [Dec. 19, 1958], No. 42439/59. Class 38 (2). A variable inductor includes an insulating supporting plate 4 of ceramic material, having an internally threaded insulating tube 5 extending from its centre through a divided shell-type ferrite core 1 with a coil 2 in a recess. The core halves are glued together, and to supporting plate 4. A ferrite trimming core 8 is provided, mounted on a carrier 7 of nylon, threaded to screw into tube 5. A small part of the head of screw 7 may be conically threaded, or unthreaded. The top of screw 7 is grooved and the walls of the top part of groove 10 are made divergent to form tongues 11 which bear resiliently against the wall of tube 5 to retain the trimming core in position. A clamp 3 holds the assembly together while the glue sets, and terminals 6 may be used to secure the inductor to a base plate.
Patent GB-1396169-A (GB)
Title: Phosphoryloxy-pyrimidones processes for their prepration and pesticidal compositions incorporating them
IPC: C07D487/04
Filed: 1972-09-15
Abstract: 1396169 Pesticidal pyrimidone derivatives ROUSSEL UCLAF 15 Sept 1972 [16 Sept 1971] 42825/72 Headings C2P and C2C Novel compounds of Formula I where A is a C 3-5  alkylene chain in which one carbon atom may be replaced by sulphur or nitrogen, Y is hydrogen, halogen, alkyl, cyano or alkylthio, X is oxygen or sulphur, R<SP>1</SP> is alkyl and R<SP>2</SP> is alkyl, alkoxy, alkoxyalkoxy or -NR<SP>3</SP>(R<SP>3</SP>) where each R<SP>3</SP> is hydrogen or alkyl, may be prepared by reacting a compound of Formula II optionally in the presence of a base, with a compound of Formula III where Hal is chlorine or bromine. Compounds of Formula I in which Y is hydrogen, R<SP>1</SP> is alkyl and R<SP>2</SP> is alkoxy may also be prepared by reacting a compound of Formula IV with an appropriate trialkyl phosphite. Starting materials are prepared as follows in examples: 2-hydroxy-6,7,8,9-tetrahydro-pyrido- [1,2a] - pyrimidine - 4 - one and 2 - hydroxy - 3- ethylthio - [6H] - 7,8 - dihydro - pyrrolo - [1,2a]- pyrimidine-4-one are prepared by reacting iminopyridine hydrochloride with ethyl malonate in the presence of sodium and imino pyrrolidine with ethyl ethylthio malonate respectively; 2 - hydroxy - 3 - bromo - [6H] - 7, 8,9,10 - tetrahydro - azepino - [1,2a) - pyrimidine- 4-one is prepared by reacting the corresponding compound which is 3-unsubstituted with N- bromosuccinimide; 2 - hydroxy - 3 - isopropyl- [6H] - 7,8,9,10 - tetrahydro - azepino - [1,2a]- pyrimidine-4-one is prepared by reacting caprolactamidine sulphate with ethyl isopropyl malonate; and 2-hydroxy-[6H]-7,8-dihydropyrrolo - [1,2a] - pyrimidine - 4 - one and 2- hydroxy - 3 - methyl - [6H] - 7,8 - dihydropyrrolo - [1,2a] - pyrimidine - 4 - one are converted to their sodium salts by reaction with sodium methylate. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-1162319-A (GB)
Title: Coaxial Cable and Method of Making It
Inventor: HOLLAND JOHN W
IPC: H01B11/18
Filed: 1967-09-20
Abstract: 1,162,319. Coaxial cables. BUNKER RAMO CORP. 20 Sept., 1967 [20 Sept., 1966], No. 42879/67. Heading H1A. A coaxial cable comprises a silver-plated copper inner conductor 14, a solid layer 16 of polyethylene, a cellular layer 18 of polyethylene and an outer conductor 20 of copper or aluminium. The assembly is passed through an aperture 24, in a die 22 to reduce the conductor 20 to its final, accurate dimensions, the layer 18 being compressed to a solidity approaching that of the layer 16.
Patent GB-1311920-A (GB)
Title: Radial tyres
IPC: B60C9/10
Filed: 1970-09-08
Abstract: 1311920 Pneumatic tyres OLBO TEXTILWERKE GmbH 8 Sept 1970 42888/70 Heading B7C A radial ply vehicle tyre has carcass plies made from a woven fabric whose weft strands 2 lie circumferentially in the finished tyre and comprise two or more types of strands which have different strength and stretch properties which are such that the warp strands are able to spread uniformly during curving of the tyre blank. The weft strands 2 may be made of core spun yarn, i.e. a yarn which has, for example, a core filament 7, Fig. 4, of polyurethane or another plastics material, e.g. unstretched nylon, and a covering 8 of cotton. Alternatively the weft strands 2 may be made of two strands twisted with one another as in Fig. 6, where there is shown a highly elastic filament 9 of a plastics material and a dimensionally stable filament 10 of cotton. During curving of the tyre, the cylinder length AB, Fig. 1, is converted into a meridian A<SP>1</SP>B<SP>1</SP>, Fig. 2, of the tyre during axial compression of the cylinder, while a circular line CD, Fig. 1, lying on the periphery of the cylinder becomes a parallel circle C<SP>1</SP>D<SP>1</SP>, Fig. 2, of the tyre. The internal diameter E at each bead region W of the curved tyre corresponds to the diameter of the make up drum and the maximum diameter F of the curved carcass is considerably greater than this. Hence the transverse interval between two adjacent strands must increase towards the centre from the bead regions W providing the woven strands 1 are evenly distributed. The weft strands 2 offer no appreciable resistance to the spreading move-  ment in the gaps formed during spreading of the woven strands. The woven strands 1 are able to move freely and uniformly into the position shown in Fig. 2.