baber/WOPTO huggingface dataset:
Patent GB-1086109-A (GB)
Title: Process for the production of ª,ª,ª',ª'-teramethyl-ª,ª'-dihydroxy-xylenes
Inventor: BUYSCH HANS-JOSEF
IPC: C07C31/20
Filed: 1966-09-08
Abstract: The invention relates to a process for production of a ,a ,a 1,a 1 - tetramethyl a ,a 1 - dihydrox xylylenes which comprises oxidizing diisopropyl benzenes with molecular oxygen in the liquid phase in the presence of 1 to 5% by weight of a finely divided anhydrous alkali metal hydroxide, referred to the diisopropyl-benzene, and at a temperature between 100 DEG  and 150 DEG  C.  The mixture of the diisopropyl benzene and finely divided anhydrous alkali metal hydroxide may be prepared by adding a concentrated aqueous hydroxide solution to a diisopropyl-benzene solvent mixture and removing the water by azeotropic distillation.  The examples show the preparation of tetramethyl a ,a 1 - dihydroxy ortho, meta, and p-xylylenes from the corresponding diisopropyl-benzenes.
Patent GB-981005-A (GB)
Title: Process for preparing nitriles
IPC: B01J8/26
Filed: 1963-10-11
Abstract: Acrylonitrile and methacrylonitrile, together with the corresponding saturated nitriles in small amount, are obtained by contacting a mixture of propylene or isobutylene, ammonia and oxygen, the molar ratio of oxygen to olefine being 0.5-3: 1, with a fluidized solids catalyst at 550-1000 DEG  F. and substantially 1 to 3 atmospheres pressure, in a reactor having a plurality of communicating reaction compartments and comprising foraminous members, the open area of which is 7.5-50% of the total internal cross-sectional area of the reactor.  Preferably the molar ratio of ammonia to olefine is 0.05-5: 1, and water may be present in a water to olefine ratio of 0.25-10: 1.  Specified catalysts are the Bi, Sn and Sb salts of phosphomolybdic and molybdic acids, bismuth silicomolybdate, silicophosphomolybdate and phosphotungstate, the combined oxides of Bi and Mo and optionally P, which may be promoted by the oxides of Ba and Si; and the combined oxides of Sb and V, Sb and Fe, Sb and Th, Sb and Ce, and Sb and Mn.  Other catalysts which may be used are those of Specifications 904,418 and 874,593, Belgian Specifications 592,434, 593,097, 598,511, 603,030, 612,136, 615,605 and 603,031, Canadian Specification 619,497, French Specification 1,278,289 and U.S.A. Specification 2,481,826. The foraminous members may be screens, gratings, perforated plates, cores or pyramidal-shaped plates, such as are disclosed in U.S.A. Specifications 2,433,798, 2,730,556, 2,740,698, 2,833,219, 2,847,360, 2,893,849 and 2,893,851.ALSO:Catalysts for the production of acrylonitrile and methacrylonitrile (see Division C2) include the combined oxides of Sb and Th, and Sb and Mn, if desired supported on SiO2 or Al2O3.  Many metals may be incorporated in the form of heteropoly salts. Specifications 874,593 and 904,418 are referred to.
Patent GB-1243024-A (GB)
Title: Preparation of siloxane compounds
Inventor: MIRONOV VLADIMIR FLOROVICH
IPC: C07F7/18
Filed: 1968-08-23
Abstract: 1,243,024. Dihydroxy disiloxanes by hydrolysis of polysiloxyalkanes. V. F. MIRONOV and V. L. KOZLIKOV. 23 Aug., 1968 [23 Aug., 1967], No. 40372/68. Headings C3S and C3T. Siloxanes of the Formula (I) are prepared by the alkaline hydrolysis of compounds of the Formula (II) R being a divalent saturated or unsaturated alkylene, arylene-alkylene, or aryl-alkylene radical, and R<SP>1</SP> and R<SP>2</SP> each being an alkyl or aryl radical. The compounds (II) are obtained by polymerization of unsaturated hydrosilanes derived from a diorganomonohalosilane and an unsaturated hydroxy compound. Thus e.g. Me 2 SiHCl, Ph 2 SiHCl or MePhSiHCl may be condensed i.p.o. dimethylaniline, diethylaniline or triethylamine in an organic solvent with the unsaturated alcohol, and the product be polymerized i.p.o. a hydrosilylation catalyst, then hydrolysed with boiling aqueous alkali. In the examples (CH 3 ) 2 SiHCl is condensed i.p.o. dimethylaniline in dibutyl or diethyl ether or white spirit with allyl, methallyl, or propargyl alcohol or o-allylphenol; the products are polymerized at 185-210 C. i.p.o. H 2 PtCl 6  in isopropanol, then hydrolysed with boiling 20% NaOH and then acidified; the resultant organic layer is washed with water and dried.
Patent GB-1105946-A (GB)
Title: Corona discharge coating processes
IPC: B05D7/22
Filed: 1965-09-22
Abstract: A coating of an organic material is formed on a substrate by generating a corona discharge in a gas comprising an organic vapour provided between two spaced electrically conductive surfaces at least one of which is electrically insulated from the gas whilst the substrate is positioned in the path of the discharge.  The vapour may be of methane, benzene, toluene, butadiene or acrylonitrile, indene or metacresol diluted with argon and the resulting coating is polymeric in form.  The substrate may be paper or a metal can which may form one electrode while the other electrode may be of insulated glass and may be positioned within the metal can.  The coated substrate may be cured e.g. by heating.
Patent GB-1511062-A (GB)
Title: Radioaerial
IPC: H01Q1/12
Filed: 1975-10-03
Abstract: 1511062 Window pane aerial P R R LAURENT 3 Oct 1975 [4 Oct 1974] 40465/75 Heading H4A [Also in Division B7] A window-mounted aerial assembly comprises two electrically conducting strips facing one another and provided on opposite faces of a strip of insulating material, the down-lead being connected to only one of the conducting strips. In one embodiment two metal strips are bonded to opposed faces of a plastics, felt, rubber or fabric strip a few millimetres thick. The resulting sandwich can be bonded to the inside of aÀ car windscreen. A second embodiment utilizes a translucent non-conductive sheet with translucent vapour-deposited metal electrodes on both its surfaces instead of the metal strips, and doubles as a heat or sun screen. This arrangement may be incorporated in a laminated window.
Patent GB-946979-A (GB)
Title: Magnetic memory assembly
IPC: G11C5/05
Filed: 1961-11-13
Abstract: 946,979. Magnetic storage apparatus. AMPEX CORPORATION. Nov. 13, 1961 [Nov. 23, 1960], No. 40480/61. Heading H3B. A magnetic memory assembly comprises a number of toroidal cores mounted on a longitudinal plastic frame shaped so that several may be conveniently assembled together. As shown (Figs. 1A, 1C), the frame 10 has, along each edge 16, 18, a groove 16A, 18A and a number of equispaced notches 16B, 18B. Toroidal cores 30, 40 &c. (Fig. 3) are assembled on to a hollow needle containing winding wire and then located in the two grooves, one core at each notch, the windings through the cores being wrapped helically round the frame 10. A number of frames 80, 82, 84, 86 may be assembled together, by means of bolts through holes 20, or by means of side plates 90, 92 (Fig. 4). In a modification the frames have additional notches to allow the use of multi-aperture cores (Fig. 5, not shown).
Patent GB-1179865-A (GB)
Title: A Method Of, and Means For, Making Foundry Moulds
Inventor: RABINOVICH BENEDIKT VENIAMINOV
IPC: B22C15/12
Filed: 1967-09-05
Abstract: 1,179,865. Moulding machines. NAUCHNOISSLEDOVATELSKY INSTITUT TEKHNOLOGII AVTOMOBILNOI PROMYSHLENNOSTI. 5 Sept., 1967, No. 40543/67. Heading B3F. In a moulding machine in which a flask 8 contains moulding sand that is compacted between a fixed thrust plate 9 and a pattern plate 3 carrying patterns 4, the pattern plate 3 and a stripper plate 1 are mounted for independent movement on piston 5 and piston 2 respectively, the strokes of the pistons being arranged so that at the end of the stroke of the piston 2 a set of adjustable power cylinders 6 carried by the stripper plate 1 engage with the pattern plate 3 to move the stripper plate and pattern plate simultaneously to the end of their strokes. On retraction the patterns are initially retracted through the stationary stripper plate before the pattern plate and stripper plate are lowered together. On the compacting stroke the pattern plate 3 may be moved upwards first and then the stripper plate follows, or they may both move together but at different speeds, in both cases the pattern plate is stopped before the end of its complete stroke and is caught up and finally moved by the stripper plate. In an alternative embodiment (Figs. 3 and 4, not shown) a sand frame (13) is placed on top of the flask 8 and the stroke of the stripper plate 3 moves the flask 8 and the sand frame (13) relative to the thrust plate 9 to compress the sand from the top, as well as from the bottom by the patterns 4. When the mould includes projections the sand in the complimentary cavities in the patterns 4 is compacted by providing movable insertion pieces (14), (Figs. 5-7, not shown). The insertion pieces are spring-biased in the pattern 4 and are pre-set, or moved relative to the pattern 4 during movement of the pattern plate 3, to increase the cavity size and during the final part of the stroke of the stripper plate 1 the insertion pieces 14 are forced upwards to compact the sand. A number of examples of operations of the machine are described.
Patent GB-1530297-A (GB)
Title: Circuit arrangement for noise level suppression
IPC: G01D3/00
Filed: 1975-10-12
Abstract: 1530297 Measuring voltage HARTMANN & BRAUN AG 12 Oct 1975 [12 Oct 1974] 40624/75 Heading G1U In removing noise from a measurement signal by integration, a threshold device feeds the integrator and the system output is compared to the input signal to feed the integrator. Thus, for a steady input, accompanied by noise, the difference element 3 provides a very low output from threshold device 2 to feed the integrator whose output thus remains steady and noise-free. If the input signal changes, the difference output rises and the threshold 2 output changes state rapidly increasing the integrator input and the output can thus rapidly follow the input to a new steady level Fig. 5 (not shown). The threshold level of the device 2 may be controlled by the detected noise level and/or the detected measurement signal, when this is related to the expected noise level.
Patent GB-1082009-A (GB)
Title: Fluid system and control for actuation of vehicle components and cooling of brakes
Inventor: HICKS LEON EUGENE
IPC: F16D65/78
Filed: 1965-09-24
Abstract: 1,082,009. Cooling fluid-operated brakes; hydrodynamic brakes. CATERPILLAR TRACTOR CO. Sept. 24, 1965, No. 40728/65. Headings F2E and F2F. [Also in Divisions F1 and F4] In a vehicle brake system, cooling fluid under pressure is supplied from a reservoir 19 and circulated by means of a pump 20 through a line 21 and a valve member 22 to the brakes 10 by means of a conduit 23 whenever the brakes are applied upon movement of a valve lever 17 from the full line position to the broken line position shown in the Figure to allow air under pressure to flow via conduit 31 and conduit 18 to actuate the brakes 10 by airpressure behind applying pistons 15, a pump 39 associated with each brake housing being provided for scavaging at least a portion of the cooling fluid from the brake. The pumps 39 associated with each brake housing are driven by fluid motors 38, the pumps 39 directing flow of fluid via check valve 45, conduit 44 through an hydraulic control valve 46, line 48, a by-pass-valve 50 and a heat exchanger 49 and back to the reservoir 19 via a conduit 60. In order to limit the flow of fluid through the heat exchanger 49 the by-pass valve 50 is provided with a temperature-sensitive element 62 which acts upon the stem of a valve spool 63 in order to divert the flow through the bypass valve whenever the temperature of the fluid is below a certain level to prevent damage to the delicate tube structure of the heat exchanger 49 when the fluid flow is relatively viscous due to low temperatures. The valve lever 17 of the valve 16 also controls the supply of air under pressure to the uppermost surface of the piston 14 operating in a reservoir 12 such that movement of the piston 14 downwardly forces liquid in the reservoir 12 into an hydrodynamic retarder housing 11 which is associated with the vehicle drive shaft 11a. The valve 22 is provided with a spool valve 24 which is moved upwardly to effect communication between the lines 21 and 23 when the hydrodynamic retarder and the air pressure operated brakes are actuated, a compressed-air cylinder 28 being provided to effect upward movement of the spool valve 24. The oil under pressure from the reservoir 19 and pump 20 in addition to being used for cooling the brakes may be employed for the actuation of other hydraulically controlled vehicle components such as an hydraulic jack 70 employed to impart dumping movement to the body of a truck or wagon. The jack 70 may be actuated when a lever 73 is manipulated to move the spool of the valve 46 downwardly to effect communication between the line 21 and the line 76. Also provided in the by-pass valve 50 is a pressure-sensitive valve 55 responsive to excessive pressure to open the by-pass. Reference has been directed by the Comptroller to Specification 788,043.
Patent GB-1108407-A (GB)
Title: Continuous filtration centrifuge
Inventor: PINKAVA JAN
IPC: B04B3/08
Filed: 1966-09-13
Abstract: 1,108,407. Centrifugal strainer. CESKOSLOVENSKA AKADEMIE VED. 13 Sept.. 1966 [30 Sept.. 1965], No. 40786/66. Heading B1D  The filtering surface of a centrifugal strainer comprises a continuous fibre 13 which enters the rotarv drum through its hollow shaft 4'. is constrained into a helix lining the drum and leaves the drum through a tube 22. returning through a winding device 23 . . 27 and a driving device 14 . . 17. The drum comprises two drum members 1. 2 whose axial ribs interlock and whose rotary axes are inclined or skew to effect progressive movement of the helix along the drum interior. The fibre is carried into the drum by an air or water stream in injector 18. 19. and similar devices may be used to wash and dry the fibre downstream of the drum. In operation. the drum lining is first built up by releasing fibre from winding device 23. . 27. and may be laid one or more turns thick by adjusting the relative speeds of the drum and fibre. Thereafter material for filtering is fed in by tube 28 which sprays across the length of the drum. In Fig. 5 (not shown) the fibre outlet tube (32) has an end disc and rotates, whereby the outgoing run of fibre is maintained in one sector of the drum and does not cut across the feed of material to be filtered. Alternatively, the said feed may be interrupted in synchronisation with the rotation. After building up the filtering layer in Fig. 5. tube (32) and disc (33) are advanced into the drum. Instead of being washed the fibre leaving the drum may pas through wringing rollers. The fibre may be stranded nylon, cotton or metal.
Patent GB-1368255-A (GB)
IPC: E02F3/10
Filed: 1971-09-03
Abstract: 1368255 Excavators INTERNATIONAL HARVESTER CO OF GREAT BRITAIN Ltd (International Harvester Co MBH) 3 Sept 1971 41210/71 Heading ElF Locking of an earth-working implementcarrying carriage 3 to a support structure 4 along which the carriage 3 can be moved whilst being retained thereon by co-operating, vertically spaced pairs of retaining members 20, 21a, b and 22 a, b, 24, 25 involves one member having a fixed surface 24 and an abutment member 25 that is pivotally secured on the rest of the member so as to be movable towards the fixed surface on actuation of means 29 acting directly between the abutment member 25 and said rest of the member to cause clamping between the fixed surface 24 and the abutment member 25 of the other retaining member 22a, b of the pair.
Patent GB-1019969-A (GB)
Title: Yarn cutting device for circular hosiery knitting machines
IPC: D04B35/00
Filed: 1963-10-18
Abstract: 1,019,969. Knitting-machines. SOLIS S.R.L. Oct. 18,1963 [Oct. 23, 1962], No. 41269/63. Heading _ D1C.  Yarn severing mechanism for a circular knitting-machine comprises a fixed blade 12 and a pneumatically vibrated blade 13 connected to a piston 17 of a pneumatic vibrator housed in a cylinder 16 in a block 11 to which is attached the fixed blade 12. The block 11 is slidably supported and is adapted to be lowered by a lever 25 to move the blades into an operative position between the needles and the welt hooks and simultaneously open a valve controlling the air supply to the cylinder.
Patent GB-1064630-A (GB)
Title: Improvements in or relating to anti-dazzle devices for roads
IPC: E01F7/06
Filed: 1965-09-29
Abstract: 1,064,630. Anti-dazzle screens. EISEN UND METALL A. G. Sept. 29, 1965 [Sept. 30, 1964], No. 41293/65. Heading E1G.  An anti-dazzle screen comprises a number of extruded aluminium elements of cross section shown in Fig. 4, mounted for pivotal and height adjustment on vertical shafts attached to anchoring means such as a crash barrier. The anchoring means may be a U- clamp engaging a tubular member having adjustable supports bolted to the crash barrier supports.
Patent GB-1488132-A (GB)
Title: Fire protective insulating product
IPC: H01B3/48
Filed: 1974-09-23
Abstract: 1488132 Fire protective insulating material FLAMEMASTER CORP 23 Sept 1974 [24 Sept 1973] 41389/74 Heading B2E A fire protective insulating material comprises a base layer of glass fibres at least 0.5 inches thick, coated with a layer containing 1.5 to 25 wt. % of an organically bound chlorine, which layer comprises 3 to 75% of non-combustible fibres, and 5 to 97% of a natural or synthetic resinous binder. When the binder contains organically bound chlorine, it functions as the chlorine-containing compound. By "non-combustible" is meant that the fibres maintain their integrity and reinforcing ability at 1600 to 2000F for at least 15 minutes. The base is preferably needled glass fibre mat. The glass fibres may optionally be coated with a fire protective coating or impregnated with a moulding resin and moulded, and. the fibre mat may be backcoated with a pressure-sensitive adhesive. Suitable non-combustible fibres for use in the coating include, alumino silica, carbon, quartz, talc, nylon or phenolic resin fibres, which may be used in place of or in addition to asbestos fibres. Suitable binder resins include polyvinyl acetate, G.R.S. rubber, chlorinated rubber, natural rubber, methacrylate and acrylate polymers and copolymers, polyvinyl and polyvinylidene chloride polymers and copolymers (e.g. vinyl acetate/vinyl chloride copolymers), elastomeric polyurethanes. vinyl acetate/ethylene copolymers, epoxy resins, polystyrene and A.B.S. polymers. Suitable chlorinated compounds are halogenated hydrocarbons (e.g. chlorinated naphthalene. chlorinated terphenyl and mixtures thereof. hexabromocyclodecane, tribromobenzene, P.T.F.E., chlorotrifluoroethylene and perchloropentacyclodecane), tetrabromophthalic anhydride, tris (2, 3-dibromopropyl) phosphate, tris-#-chloroethyl phosphate, and chlorinated biphenyl. Suitable plasticisers are mentioned as is antimony trioxide fire retardant additive and fillers such as zinc borate, CaCO 3 , TiO 2  vermiculite and asbestine (a talc/asbestos mixture). Preferably a dispersion of coating materials is applied to the fibre mat which is wrapped round a pipe carrying conductor or corrosive fluid, or a conductor carrying channel, before spraying on another layer of the coating material.
Patent GB-1090613-A (GB)
Title: Improvements in or relating to electrical power meters
Inventor: LUSKOW ALFRED ALLAN
IPC: G01R21/00
Filed: 1963-10-21
Abstract: 1,090,613. Power measurement. MARCONI INSTRUMENTS Ltd. Aug. 5, 1964 [Oct. 21, 1963], No. 41403 / 63. Heading G1U. A power meter adapted to measure power at any frequency up to 1000 Mc/s includes a heater 2 in the form of a very thin walled tubular conductor through which the power is passed and which constitutes the centre conductor of a length of slab transmission line. The conductor is insulated from but close to a thermal converter such as a thermocouple or thermistor, whose leads are brought out of the transmission line in the median plane thereof,_so producing minimum disturbance of the field within the line. The length of line is dimensioned and tapered to present a characteristic impedance particular to the line in which the measuring apparatus is to be inserted. The thin walled tubular conductor takes the form of a gold deposit on an insulating glass core.
Patent GB-1371907-A (GB)
Title: 2-phenyl-as-triazine-3,5-2h,4h-diones
IPC: C07D295/135
Filed: 1971-09-07
Abstract: 1371907 2 - Phenyl - as - triazine - 3,5- diones PFIZER Inc 7 Sept 1971 41743/71 Heading C2C Novel compounds of general formula (I) and their alkali metal and alkaline earth metal salts where R 2  and R 6  are hydrogen, fluoro, chloro, cyano or methyl with the proviso that at least one of R 2  or R 6  is hydrogen or fluoro; each of R 3  and R 5  is independently one of a first subgroup of hydrogen, cyano, trifluoromethyl, halogen or C 1-6  alkyl, a second subgroup consisting of C 1-6  alkoxy or C 1-6  alkylthio or a third sub-group consisting of nitro or thiocyanato; R 4  is cyano trifluoromethyl, halogen or C 1-6  alkyl, NR 7 R 8  alkvl sulphonyl, SO 2 -NRR, or C 1-6  alkanoyl with the proviso that when R 4  is SO 2 -NRR, or alkanoyl at least one of R 3  and R 5  is other than hydrogen; R and R 1  are either methyl, ethyl, alkyl or propargyl and R may also be either phenyl, benzyl or p-chlorobenzyl or R and R 1  together with nitrogen may be morpholino, thiomorpholino, pyrrolo, pyrrolino, pyrrolidino, piperdino, N-(C 1-6  alkyl) piperazino, hexamethylenimino, 3,4-dichloro-piperidino, thiazolidino, #<SP>3</SP>-tetrahydropyridino or piperazino; X is oxygen, sulphur, > C = 0, > NH, > SO, > SO 2  or > CHOH; Y and Y<SP>1</SP> are hydrogen, nitro, cyano, halogen or C 1-6  alkoxy; and R 7  and R 8  are C 1-4  alkyl or both together with the nitrogen they are attached to form one of the heterocyclic rings defined above except for 3,4-dichloropiperidino with the proviso that not all of R 2 , R 3 , R 4 , R 6  and R 6  are simultanously hydrogen, fluoro or chloro and that no more than two of these groups are hydrogen are prepared either by (1) reacting the appropriate phenyl diazonium salt with cyanoacetylurethan to provide the corresponding phenylhydrazono - cyanoacetylurethan which under the influence of alkali, sodium acetate/ acetic acid or ammonium acetate/acetic acid produces the 6 - cyano - 2 - phenyl - as - triazine- 3,5-(2H,4H) dione which is hydrolysed to the 6-carboxy derivative and decarboxylated, or (2) phenylation of the parent as-triazine-3,5(2H, 4H)-dione in a suitable solvent (water, ethylene glycol, N<SP>1</SP>,N-dimethyl formamide, dimethyl sulphoxide or alkanols) in the presence of an acid acceptor with the appropriate halobenzene. Compounds (I) are coccidiostats and form with a carrier or diluent a composition which may be administered orally, in poultry feed or via drinking water, or rectally.
Patent GB-1149528-A (GB)
Title: Improvements in or relating to breathing apparatus
Inventor: COLE ALLAN
IPC: A62B9/02
Filed: 1966-09-19
Abstract: 1,149,528. Breathing apparatus. DRAEGER NORMALAIR Ltd. 6 Sept., 1967 [19 Sept., 1966], No. 41800/66. Heading AST. Breathing apparatus comprises a pressurised gas container 1 supplying gas to a user-portion 19 by way of a respirationally actuated demand valve 11, a demand chamber 12, and a connection means 2, the connection means permitting disconnection of the demand chamber and substitution thereof by a charging connector without disturbing the demand valve, the demand valve acting as a non- return valve during recharging of the gas container. As shown, the breathing apparatus, for use in noxious atmospheres, supplies air from a pressurized cylinder 1 to a mouthpiece 20 via a demand tilt valve 11 actuated in response to the user's inhalations by an impervious flexible diaphragm 13, 16 and the demand chamber 12 can be unscrewed from the demand valve assembly so that a charging source can be connected to re-charge the container 1 through the unseated valve. The apparatus also includes a pressure gauge 7, sealing washers 9, 14, holes 17 to atmosphere, and non-return inhalation and exhalation valves 21, 22. The apparatus may include a cage or pin to prevent the valve 11 from blocking the bore 4 and the user-portion 19 may comprise a face mask in addition to or instead of the mouthpiece 20.