baber/WOPTO huggingface dataset:
Patent GB-1449950-A (GB)
Title: Light transmitting filament
IPC: B29C48/05
Filed: 1974-11-15
Abstract: 1449950 Methacrylate conjugate filaments MITSUBISHI RAYON CO Ltd 15 Nov 1974 [22 Nov 1973] 49614/74 Heading B5B [Also in Division C3] A conjugate filament has as a core component a methyl methacrylate polymer containing at least 80% by weight ofunits derived from methyl methacrylate and at most 20% by weight of a comonomer selected from alkyl acrylates and alkyl methacrylates, and as a sheath component a polymer containing at least 30% by weight of fluorine and having a refractive index of at most 1À42. The methyl methacrylate core polymer must be prepared by a continuous bulk polymerization at between 130 and 160 C. in the presence of from 0À01 to 1À0% by mol. of a mercaptan. The reaction mixture is continuously removed from the polymerization zone and the volatile contents (mostly unreacted monomers) removed from the reaction mixture. The mixture is thoroughly stirred. The conditions of polymerization are chosen so that "A", the concentration in moles of the free radical initiator per 100 g. of the monomer feed and "B", which is the half-life in hours of the free radical initiator at the polymerization temperature obey the following relations and The polymer content # (measured in percent by weight) of the reaction mixture is kept substantially constant and such as to satisfy the relationship The fluorinated sheath polymers disclosed are homo- and co-polymers of vinylidene fluoride, tetrafluoroethylene, hexafluoroethylene and fluorinated acrylic and methacrylic acid esters. Particular ones are poly-2,2,2-trifluoroethylmethacrylate, optionally containing 2,2,3,3,4,4- 5,5 - octafluoropentyl methacrylate or 2,2,3,4- 4,4 - hexafluorobutyl methacrylate; poly- 1,1,1,3,3,3 - hexafluoropropyl methacrylate, optionally containing the above comomers; poly - 2,2,3,4,4,4 - hexafluorobutyl methacrylate, optionally containing units of the above octafluoropentyl methacrylate; and a copolymer of vinylidene fluoride and tetrafluoroethylene. The polymers may be coextruded into a conjugate filament or the core polymer may be melt-extruded on its own and coated with a solution of the sheath polymer. The co-extruded filaments may be stretched to from 1À3 to 2À3 times their original length.
Patent GB-1140279-A (GB)
Title: Improvements in hat blocks
Inventor: BAILEY ALEC
IPC: A42C1/02
Filed: 1966-11-07
Abstract: 1,140,279. Making hats. A. H. COOPER & CO. Ltd. 6 Nov., 1967 [7 Nov., 1966], No. 49809/66. Heading A3V. A male hat block member 2 consists of pieces 24, 26, 28 of cast aluminium each being located on a cast aluminium pillar 4 by means of a dowel 37 of harder metal than aluminium, e.g. steel, embedded in the piece and extending downwardly therefrom into a brass sleeve 38 embedded in the pillar 4. The portion 42 of the pillar forms part of the surface of the hat block member and thus when the member is removed from the pillar tilting of the pieces 24 &c. to extract them from a hood (44), Fig. 1 (not shown), is facilitated. If the hood is of thermoplastic material it is heated prior to being placed on the member 2 which need not then be heated and may in fact be provided with passages for water cooling. For other materials passages for hot air or steam may be provided in the member 2.
Patent GB-1134396-A (GB)
Title: Magnetic amplifier
IPC: H03F9/00
Filed: 1966-11-07
Abstract: 1,134,396. Magnetic amplifiers. NAUCHNOISSLEDOVATELSKY INSTITUT MEKHAHIKI MOSKOVSKOGO GOSUDARSTVENNOGO UNIVERSITETA. 7 Nov., 1966 [5 Nov., 1965], No. 49825/66. Heading H3B. The control signal of a magnetic amplifier of the second harmonic type is applied to electrodes on a ferrite core and develops a controlling electric field orthogonal to the core flux. As shown in Fig. 1, two ferrite cores 1, 2 have individual A.C. windings 6, 7, a common output winding 8, a second harmonic compensating winding 11, and cut-off windings 17, 18 which enable on-off operation to be effected. Pairs of electrodes 3, 4, which are energized from a control source 5 are provided on the toroidal cores, the electrodes being either in contact with the core material for D.C operation or spaced therefrom by an insulating film for A.C. operation. Alternatively a single planar or cylindrical thin film 12 of nickel-zinc ferrite may be used with electrodes 13 on opposite faces, Figs. 2 and 3, the conductors 14, 15, 16 and 19 respectively being used for A.C. supply, output, compensation and cut-off. The amplifier may be used in the 3 to 4 MHZ range.
Patent GB-1303087-A (GB)
IPC: C07C265/04
Filed: 1970-10-21
Abstract: 1303087 Fluoro-isocyanates ALLIED CHEMICAL CORP 21 Oct 1970 [21 Oct 1969] 50052/70 Heading C2C [Also in Divisions C3 and D1] Compounds of formula wherein, with various provisos, each of R 1 to R 4  is fluorine, chlorine or perhaloalkyl, or two of R 1 -R 4 , in combination form a perhaloalkylene group, each of X 1  to X 4  is hydrogen, fluorine, chlorine, bromine of a C 1-9 -alkyl or haloalkyl group, Z is an ethylene or vinylene group, r is 1 or 2, each of m and n is 0 to 20, m + n being 0 to 20, and each of p and s is 0 or 1, are prepared from the corresponding carboxylic acids by conversion to the acid chloride using thionyl chloride, reacting this with sodium azide and heating the reaction mixture. The starting materials may be obtained from telomers. The products have oil- and water-proofing activity.
Patent GB-1255784-A (GB)
Title: A method and apparatus for cleaning and refacing vehicle brake discs and drums
Inventor: LOCASCIO FRANCO
IPC: B24B19/28
Filed: 1968-10-23
Abstract: 1,255,784. Cleaning brake discs and drums. F. LOCASCIO. 7 Feb., 1969 [23 Oct., 1968], No. 50198/68. Heading B3D. Apparatus for facilitating the cleaning and refacing of vehicle brake discs or drums comprises an arbor adapted to be secured to a vehicle wheel hub by the wheel mounting nuts, and carrying an axial spindle adapted for engagement by the chuck of an electric drill or of the flexible drive-shaft of a portable motor unit. An arbor comprises a ring 1 having holes 2 and a spindle 3 attached to a plate 4 and held concentric with but spaced axially from the ring by arms 5; the plate is spaced from the ring sufficiently to clear any projecting portion of the hub or associated parts which project outwardly of the wheel bearing surface of a vehicle hub to which the arbor is designed to be fitted. The holes 2 are spaced to receive the wheel studs of a hub; additional holes may be provided to accommodate different stud arrangements. Additional holes 6 may be provided in the arms 5 where these overlie holes 2 so as to provide clearance for certain of the studs. To treat a brake disc the wheel is removed and the arbor secured to the wheel hub by some or all of the wheel nuts. The spindle 3 is held in the chuck of an electric drill and the braking surfaces treated while rotating by application of abrasive paper or other material presenting an abrasive surface or by application of an abrasive head carried by a second portable power tool, e.g. a drill fitted with an arbor carrying an emery cloth disc. When treating a brake drum, the wheel is removed and the drum is then removed and replaced in reversed position with the interior of the drum facing outwards. Reference has been directed by the Comptroller to Specifccation 1,184,718.
Patent GB-1049300-A (GB)
Title: Two-piece closure and dispensing cap for containers
IPC: B65D47/24
Filed: 1964-12-10
Abstract: 1,049,300. Container closures. PRODUCT DESIGN & ENGINEERING Inc. Dec. 10, 1964 [Dec. 11, 1963], No. 50425/64. Heading B8T. A two-piece closure for dispensing liquid comprises a screw-threaded cap 12 with a cylindrical neck 24 extending from an opening 16 and into which the hollow cylindrical part 34 of a stopper 32 slidably extends and makes sealing contact therewith. A pin 22 extending axially through the neck from a transverse bar 18 closes an axial outlet in the stopper when the latter is pushed to its lowermost position. A stopper flange 44 embraces the neck which is sealingly engaged by a rib 47 and flanges 36 and 40. A rib 26 projecting into the neck provides a stop to engage the flange 36 on the outward movement of the stopper.
Patent GB-1282087-A (GB)
Title: An optical device for dividing a polarised light beam and for combining partial beams
IPC: G02B21/14
Filed: 1970-10-23
Abstract: 1282087 Polarized light ERNST LEITZ GmbH 23 Oct 1970 [25 Oct 1969] 50429/70 Heading G2J A device for dividing a polarized light beam into partial light beams and recombining the partial light beams comprises a Wollaston prism 43 in combination with a plane-parallel plate 41 cut at an oblique angle to its optical crystal axis. One or two of the above devices may be used in interference microscopes, Figs. 5 and 6 (not shown).
Patent GB-1112638-A (GB)
Title: Process for the production of ª‡,ª‰- unsaturated monocarboxylic acids
IPC: B01J23/31
Filed: 1966-11-10
Abstract: a ,b -Unsaturated monocarboxylic acids are prepared by reacting a -mono-olefinic hydrocarbons (with less than 8 C atoms) in the vapour phase in a first reactor with an oxygen-containing gas at 370 DEG  to 510 DEG  C. in the presence of steam and a catalyst comprising bismuth and molybdenum oxides, quenching the effluent to 120 DEG  to 340 DEG  C., and passing it directly to a second reactor containing a catalyst comprising cobalt oxide, molybdenum oxide and bismuth oxide, with an atomic ratio C0:Mo of 1:1 or less at 340 DEG  to 480 DEG  C. The oxidation of propylene and isobutylene and mixtures containing them are preferred and air may be the oxidizing gas. Examples describe the oxidation of propylene to acrylic acid with acrolein as a by-product.ALSO:In a two stage oxidation process olefinic hydrocarbons are oxidised in a first reactor with a catalyst comprising bismuth and molybdenum oxides at between 120 DEG  and 340 DEG C, followed by a second reactor with a catalyst comprising cobalt oxide, molybdenum oxide and bismuth oxide with an atomic ratio of CO:Mo of 1:1 or less at between 340 and 480 DEG C.  The catalyst in the first reactor may be supported on alumina or silica gel and in an example silica gel is impregnated by a solution of bismuth nitrate and molybdosilicic acid.  The catalyst for the second reactor may be prepared by mixing the respective oxides and calcining, or by coprecipitating a solution of a bismuth salt and a cobalt salt with ammonium molybdate, the latter method being exemplified.
Patent GB-1221557-A (GB)
Title: Improvements in or relating to space vehicle control systems
IPC: B64G3/00
Filed: 1968-10-24
Abstract: 1,221,557. Space vehicle control. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 24 Oct., 1968 [24 Oct., 1967], No. 50499/68. Heading B7W. In a system for operating space vehicles, e.g. satellites or missiles, a plurality of functional units are provided in the satellite 1 in communication with a ground station 2 via a realtime channel 3, tape-time channel 4 and an order channel 5, there being a process computer having a nominal value frame store 10 for each function connected to upper and lower limiting stores 11, 12, means 15 for storing actual values from the satellite, a comparator 20 for comparing values 15 with values 11, 12 to give an actual difference value which is stored in means 18, a comparator 21 for comparing the actual differences from store 18 with nominal differences from store 13 representing all possible failures, a control means 26 activated by comparator 21 to send test orders to the satellite and effect changes in stores 11, 12 through a correction circuit 29, the means repeating the processing of data after the test orders to ascertain irreparable faults or failures in the satellite, wherein a real time channel 3 is first connected to said computer having a decommutator 31 to determine quality of signal and a mission order store 16 synchronized with a clock 17 for feeding predetermined order to the satellite through channel 5. After processing information through real-time channel 3 tape-time channel 4 is operated to process information obtained whilst the satellite is out of radio contact with ground station 2. In this instance if the actual values are outside the limits 11, 12 a manual operation circuit 54 and correction circuit 55 can be operated to alter the limits in 11, 12 to more realistic ones.
Patent GB-1416146-A (GB)
Title: Process for separating c8 aromatic compounds
IPC: C07C1/00
Filed: 1972-11-02
Abstract: 1416146 Distilling hydrocarbons METALLGESELLSCHAFT AG 2 Nov 1972 [13 Nov 1971] 50629/72 Heading C5E In a process for separating C 8  aromatics from hydrocarbon mixtures by extractive distillation, the evaporation ratio V (ratio of heat supplied to the sump of the distillation column to that required to evaporate the C 8  aromatics recovered) and solvent ratio L (ratio of solvent supplied to the extractive distillation column to the C 8  aromatics recovered) are related by the equation where A lies between 0À25 and 3À75. This equation is derived from equations relating V and L to the purity of the product Z (parts per million of non-aromatics). and where Y lies between 6 and 10 and X between 4 and 6. The hydrocarbons to be covered may be any of the three xylenes or ethylbenzene, the solvent may be N-methylpyrrolidone, butyrolactone, dimethyl sulphoxide, diethylene glycol monomethyl ether, diethylene tri-amine, tetrahydrothiophene dioxide or propylene carbonate, and the hydrocarbon feed may be a distillation fraction of a reformate.
Patent GB-507143-A (GB)
Abstract: 507,143. Condensers. HUNT, Ltd., A. H., and FISHER, J. H. Nov. 11, 1937, No. 30965. [Class 37] A mica &c. condenser is encased in insulating material, there being an aperture registoring with and giving access to an exposed metal electrode, so that a part can be removed, by scraping, to effect final adjustment of the capacity. In the example, the uppermost layer 21 of dielectric material in the condenser unit is cut away so as to leave accessible the uppermost electrode layer 17, when the unit has been fixed in the casing, through the aperture 12. The casing is shown as in two parts 10, 11, to be sealed together, but insulating material may be applied by moulding around, or dipping the unit, provision being made for forming the access aperture. After adjustment the aperture can be sealed. Specification 484,925 and 504,926 are referred to.
Patent GB-1515539-A (GB)
Title: Radar arrangements
IPC: G01S13/78
Filed: 1976-12-01
Abstract: 1515539 Secondary radar MARCONI CO Ltd 1 Dec 1976 [10 Dec 1975] 50725/75 Heading H4D A radar arrangement, e.g. for air traffic control, in which the amount of transmitted energy is reduced, includes means 3 for interrogating targets and for receiving encoded replies therefrom within a predetermined volume of space during one sweep of an antenna 6, means for dividing said predetermined volume of space into sectors of annuli ("annular sectors") defined by azimuths and ranges, a store 21 for storing information identifying "annular sectors" in which a responding interrogated target exists, and an arrangement 22 whereby target interrogation and response occurs only in the "annular sector" where a target is identified or in adjoining "annular sectors". As antenna 6 rotates, an azimuth counter 16 causes the logic arrangement 22 to scan the store 21 cells azimuthally and the range counter 19 causes arrangement 22 to scan each of the azimuth increments in range. When a store cell location is found to have been set, the arrangement 22 switches a gating arrangement 2 to permit trigger pulses to be applied to the interrogator-reponser 3 and the circuits 7 to permit target replies to be applied to the coincidence detector 8. A signal is applied also to a range decoder 5 which varies an attenuator 4 to ensure that the output power of interrogator-responser 3 is no more than necessary to interrogate the "annular sector" in which the target is located.
Patent GB-1362228-A (GB)
Title: Benzene derivatives
IPC: C07C67/00
Filed: 1971-11-02
Abstract: 1362228 Oximes MAY & BAKER Ltd 2 Nov 1972 [2 Nov 1971] 50912/71 Addition to 1231783 Heading C2C Compounds of the general formula (R 8  = R 9  = Me, Pr, CH 2 CH 2 OH) and their salts are prepared by the methods of the parent Specification.  The preparation of salicylaldehyde benzyloxime and 1-(o-formylphenoxy)-2,3-epoxypropane benzyloxime is described. The above compounds are anti-arrhythmic agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1592885-A (GB)
Title: Bimodal chromatographic resolving zone
IPC: B01J20/32
Filed: 1977-12-07
Abstract: The powder for chromatographic separations is used in the separating zone of chromatographs. It essentially contains a multiplicity of separate porous macroparticles, each of which has a mean diameter of 0.5 to 500  mu m. The powder has a bimodal pore size distribution, the mean pore size for each distribution mode being such that the straight-line portions of the molecular weight calibration curve for each pore size in the bimodal distribution essentially do not intersect. Each distribution mode has a pore volume which is such that these straight-line portions run essentially parallel. At the same time, the mean pore sizes of the components of the bimodal distribution are separated by approximately an order of magnitude. The component of the bimodal distribution having the smaller mean pore size accounts for 30 to 60% of the total pore volume and the component of the bimodal distribution having the larger mean pore size accounts for 70 to 40% of it. The macroparticles are superficially porous and have an impermeable core. They have an envelope composed of a multiplicity of identical single layers made up of colloidal microparticles which touch one another and surround the core and which have a diameter of 0.005 to 1.0  mu m. The macroparticles have a diameter of 5 to 500  mu m and are composed mainly of silicon dioxide. <IMAGE>
Patent GB-1317179-A (GB)
Title: Diglycidyl derivatives of n-heterocyclic compounds processes for their manufacute and use
IPC: C07D233/72
Filed: 1970-10-28
Abstract: 1317179 Glycidyl ethers CIBA-GEIGY AG 28 Oct 1970 [27 Nov 1969] 51328/70 Heading C2C [Also in Division C3] Novel diglycidyl ethers of formula wherein X 1  and X 2  each represent a hydrogen atom or methyl group, Z represents a nitrogenfree divalent radical which completes a 5 or 6 membered optionally substituted heterocyclic ring, and m and n each represents an integer of 0 to 30 with the sum of m and n being at least 1, may be obtained by reacting novel alcohols (see Specification 1,317,180) of formula with an epihalohydrin or #-methyl epihalohydrin in known manner.
Patent GB-1460952-A (GB)
Title: Hair dye composition and process for dyeing hair
IPC: A61K8/41
Filed: 1974-11-27
Abstract: 1460952 Hair dyeing SHISEIDO CO Ltd 27 Nov 1974 [1 Dec 1973] 51333/74 Heading D1B A hair dyeing composition comprises three components (i) dithiothreitol and or dithioerythritol, (ii) tyrosine and/or DL-#-(3, 4-dihydroxyphenyl)alanine or a derivative thereof and at least one compound selected from 5- hydroxyindole, methyl 5, 6-dihydroxyindole- 2-carboxylate, tyramine, dopamine, 6-hydroxydopamine and pyrocatechol, (iii) a persulphate, and tyrosinase which may be mixed with (ii) or (iii). Preferably (i) is dissolved in aqueous ammonia solution and is used as 0.5 to 3% by weight, (ii) is preferably used in a phosphate buffer solution of pH 6.8 to 8. The persulphate (iii) is preferably present in amounts of 1% to 10% by weight. Hair is dyed by applying the above components in the order (i), (ii), (iii) to the hair.
Patent GB-1474572-A (GB)
Title: Method and apparatus for carrying out doffing and donning operation
IPC: B65H67/04
Filed: 1974-11-27
Abstract: 1474572 Doffing and donning with suction nozzle DAIWA BOSEKI KK and TOYODA JIDOSHOKKI SEISAKUSHO KK 27 Nov 1974 [27 Nov 1973 (2)] 51442/74 Heading DID In a spinning machine having a row of spinning units 1, each with a yarn take up mechanism above, during donning and doffing of take up bobbins the yarn is retained by a suction nozzle 12 which is displaceable along a path parallel to and above the spinning units and their take up mechanisms. During doffing the yarn is cut and fed into the suction nozzle 12, the full package is then removed, e.g. on conveyor 18, and an empty bobbin 8 placed in the cradle 7 which is in a raised position. On lowering the bobbin into contact with winding roller 6 the yarn is entrained and then cut between the bobbin 8 and suction nozzle 12 to allow winding to proceed. As shown in Fig. 4 a suction conduit 11 extends along the machine and has an open top covered by a flexible flap 11a. The suction nozzle has a part 12a extending into the conduit 11 by pushing aside the flap 11a. Nozzle 12 is carried by a unit 13 having wheels 14 running on rails, and moved by an endless conveyor 15 with holes which are engaged by a pin 16a on the unit 13. When doffing and donning is to be performed unit 13 is started moving along the machine at a rate such that an operator has time to perform an operation at each station. If necessary the unit may be stopped at any point by pulling a handle 21 which by means' of a wire 22 withdraws pin 16a from conveyor 15. An alternative embodiment has a lever operated pin 16a and the conveyor 15 may have its faces in the vertical plane. Suction conduit 11 is maintained at low pressure by a fan 19 in the spinning frame. In an alternative arrangement the fan is provided in the moving unit 13. Specifications 1429619 and 1474571 are referred to.
Patent GB-1286833-A (GB)
Title: Improvements in and relating to lead accumulators
IPC: H01M4/56
Filed: 1969-10-22
Abstract: 1286833 Lead accumulators ROBERT BOSCH GmbH 22 Oct 1969 [24 Oct 1968] 51713/69 Heading HlB The oxidation of the charged negative electrode in a lead-acid accumulator is reduced by adding resin acids, which can form lead salts, preferably those containing abietic acid, e.g. colophony, tall oil or tall oil resin, to the negative electrochemically active material during the manufacture of the electrode. The negative active material is made from a mixture of lead oxide powder, known additives and dilute sulphuric acid. Colophony is preferably also added to the positive lead oxide active material.
Patent GB-1527146-A (GB)
Title: Electrostatic filters
IPC: B03C3/60
Filed: 1975-12-17
Abstract: 1527146 Electrostatic precipitators SWISS ALUMINIUM Ltd 17 Dec 1975 [20 Dec 1974] 51745/75 Heading B2J [Also in Division Cl] An electrostatic filter includes at least one electrode for example the precipitation electrode only or both the positive and negative electrode comprising an electrically conductive facing of compacted graphite foil which is secured by adhesive to a substrate of plastics material. The plastics substrate may be in the form of a tube or a plate. The compacted graphite foil may be made by oxidising coarsely crystalline natural graphite with fuming nitric acid or with a sulphuric acid/nitric acid mixture, and then it is hydrolised. The oxidised graphite is heated, whereupon it decomposes and the resultant separated carbon layers are then joined together by mechanical pressure, e.g. by rolling. Such foils, e.g. from 0.08 to 0.4 mm thick when used singly have a certain flexibilty, however such layers may be combined to form a laminate. An example is given where such an electrostatic filter is used to clean the waste gases resulting from the treatment of an aluminium melt with elementary chlorine.