baber/WOPTO huggingface dataset:
Patent GB-1321683-A (GB)
Title: Textile fabrics
IPC: D02G1/02
Filed: 1970-10-07
Abstract: 1321683 Improving textile fabrics HEBERLEIN & CO AG 7 Oct 1970 [13 Oct 1969] 47749/70 Headings D1P and D1S A process for treating textile fabrics, in particular knitted fabrics made at least in part of yarns of synthetic materials textured by the ply-twist and separation method comprises subjecting the fabric to mechanical treatment in a hot gaseous medium whereby the bulk feel and density of the fabric are improved. By ply twist and separation method is meant a method in which two or more yarns are twisted together, heated whilst in the twisted condition to effect thermosetting and then drawn apart. The hot gaseous medium may be dry (e.g. hot air) or moist (e.g. steam) and the mechanical treatment may take place in a tumbler. If the treatment is effected in a dry gaseous medium the textile article may be previously steamed. The treatment in a hot gaseous medium is advantageously effected at 110 to 130‹C., preferably for 10 to 15 minutes. The mechanical treatment may take place either before or after dyeing the fabric. The process which gives an improvement in bulk, feed and density of the material is particularly suitable for fabrics made from yarns with a titre of at least 70 den.
Patent GB-1214060-A (GB)
Title: A method of oxidizing a secondary alkyl-substituted toluene
IPC: C07C409/08
Filed: 1968-10-09
Abstract: 1,214,060. Oxidation of secondary-alkyl toluenes. SUMITOMO CHEMICAL CO. Ltd. 9 Oct., 1968 [16 Oct., 1967; 19 July, 1968], No. 47784/68. Heading C2C. A method for producing cresols, benzene dicarboxylic acids, secondary alkyl benzoic acids and toluene tertiary hydroperoxides comprises reacting a secondary alkyl toluene of the formula wherein R is a methyl group and R<SP>1</SP> is a methyl or ethyl group, with oxygen or air at 50-150‹ C. in water and in the presence of sodium and/or potassium, the amount of sodium or potassium present being at least 0À12 atomic equivalent per mole of secondary alkyl toluene, or a mixture thereof, the sodium and/or potassium being provided by one or more sodium or potassium carbonates or bicarbonates or by a mixture of salts including at least 10% of the said carbonates or bicarbonates and up to 90% of a sodium or potassium salt of a benzene-carboxylic acid having the formula wherein R<SP>11</SP> is a hydrogen atom, a carboxyl or methyl group or a secondary alkyl group -CHRR<SP>1</SP> where R and R<SP>1</SP> are as defined above or an alkyl carbonyl, hydroxy alkyl or alkenyl group derived from the -CHRR<SP>1</SP> group, until the content of hydroperoxide in the oily layer formed has become 15-25% by weight, thereby obtaining a tertiary hydroperoxide of the Formula I in the oily layer and a sodium or potassium salt of a secondary alkyl benzoic acid of the Formula II in the aqueous layer; the oily layer and aqueous layers are separated and the hydroperoxide I is cleaned at 50-100‹ C. in the presence of an acidic catalyst to form the corresponding cresol, the secondary alkyl benzoic acid II may be oxidized either in the form of its sodium or potassium salt or after acidification to the free acid to obtain the corresponding benzene dicarboxylic acid. The oxidation of the secondary alkyl toluene may be carried out in the presence of an emulsifier, e.g. palmitic or stearic acid and catalysts such as cobalt-amine complex salts, phthalocyanine copper or molybdenum disulphide.
Patent GB-1527538-A (GB)
Title: Gas generators
IPC: B01J8/02
Filed: 1976-11-18
Abstract: 1527538 Fuel gas SIEMENS AG 18 Nov 1976 [29 Dec 1975] 48222/76 Heading C5E [Also in Division Fl] Fuel gas is prepared from an atomized, gasified or vaporized liquid hydrocarbon-containing fuel and an oxygen-containing gas at elevated temperature in a gas generator which comprises a reaction chamber in which there are disposed a plurality of plates spaced parallel to one another and normal to the intended flow of the reaction mixture and a plurality of particulate filling bodies located in the spaces between the plates, each of the plates being formed with a multiplicity of throughflow apertures and being made of a material which has a higher thermal conductivity than the filling bodies. Most preferably the filling bodies and/or the plates are provided with a catalytically active surface. The plates may be in the form of porous ceramic sinter bricks or made from a metallic material, e.g. molybdenum silicide. The filling bodies may be porous ceramic particles in the form of spheres or cylinders and it is preferred to provide, in the heap thereof, members consisting of a metallic material which have wall faces extending parallel to the direction of flow. The fuel gas may be mixed with combustion air and fed into an internal combustion engine.
Patent GB-1492750-A (GB)
Title: Power conversion system
IPC: H02M7/757
Filed: 1974-11-07
Abstract: 1492750 Converting; stand-by supply systems MITSUBISHI DENKI KK 7 Nov 1974 [7 Nov 1973] 48288/74 Headings H2F and H2H In a system for converting power in both directions between D.C. supplies 10 and A.C. supplies 106, an A.C. filter 90 or other storage means is connected on the A.C. side and arranged to smooth the output when converting D.C.-A.C. and to store energy during part of each half cycle when converting from A.C.- D.C. and switching means 40, 50 responsive to to the current on the D.C. side arranged to create an energy storing loop during part of each half cycle and to return the stored energy to the D.C. side 10 during another part of each half cycle. Fig. 3 shows a stand-by supply system in which a A.C. load 108 may be supplied either from a A.C. source 106 or from a D.C. source 10 after conversion to A.C. A.C.-D.C. converting. Thyristors 42, 44, 52, 54 are triggered at appropriate times in each cycle by a control circuit 130 synchronized with the A.C. source 106. Assuming point 78 is positive with respect to 74, turning on thyristor 52 completes a first closed loop I including points 34-74-72-73-58, transformer 70 being coupled to energy stored in filter 90, tuned to the frequency of A.C. source 106. When the current in the secondary 82 reverses, thyristor 52 is turned off, opening the current loop I so that energy is transferred to the battery 10 via diode 56 and the commutation circuit 60. Thyristor 42 is now turned on so as to reverse the polarity of the voltage on the commutating capacitor 64. The battery 10 is still charged at this time via diode 46. Thyristor 52 is now turned on to turn off thyristor 42 and again reverse the charge on commutating capacitor 64. Thyristor 54 is now turned on to complete a second current loop II including points 34-54-38-78-73-72-74-56. This again permits energy to be stored in the filter 90 until the current in secondary winding 82 again reverses, when the energy is transferred to the battery 10 via diode 58. Thyristor 44 is now turned on giving a current flow into the battery 10 via diode 48. The remainder of the half cycle continues in a similar manner to the previous half cycle. D.C.-A.C. converting. In the event of failure of A.C. source 106 or the opening of switch 110, thyristors 42, 44 and transformer 70 form an inverter, the thyristors being commutated by circuit 60 under control of thyristors 52, 54 as described in detail with the aid of Fig. 4 (not shown). Modifications. Fig. 12 shows an alternative reversible converter. In Fig. 13 (not shown) the tapped inductors 200, 204 are omitted, capacitors 208-214 are replaced by commutating thyristors and series LC commutating circuits are included between points 32<SP>1</SP>, 202 and between 34<SP>1</SP>, 204. The charging of battery 10 may be controlled by altering the pause period of each half cycle under control of the circuit 130 (Fig. 3). The current may be monitored at 80 so as to provide automatic regulation. The thyristor-diode combinations may be replaced by reverse-conducting thyristors or transistors.
Patent GB-1147247-A (GB)
Title: Carbonating apparatus
Inventor: YINGST THOMAS ORVILLE
IPC: B67D1/00
Filed: 1967-02-28
Abstract: 1,147,247. Carbonating water. UMC INDUSTRIES, Inc. 28 Feb., 1967, No. 48378/67. Divided out of 1147246. Heading B1C. The description is the 'same as that of Specification 1147246 but the claims relate to the construotion of the carbonator.
Patent GB-1467230-A (GB)
Title: Bolt tensioning apparatus
IPC: B25B29/02
Filed: 1973-10-17
Abstract: 1467230 Bolt tensioning apparatus BRITISH PETROLEUM CO Ltd 16 Jan 1975 [17 Oct 1973] 48383/73 Heading F2H Bolt tensioning apparatus, see Fig. 1, suitable for use in underwater locations comprises a sleeve 1 having an end surface provided with seals 16 which engage a flange 11, a blind nut 12 which engages bolt 4, the sleeve and nut forming a fluid-tight enclosure about the end of the bolt and nut 5, a shaft 22 having an outer end 34 rotatable by a spanner and an inner end provided with a toothed ring 18 engageable with a toothed ring 6, 7 on nut 5, the arrangement being such that on introduction of hydraulic fluid into the fluid-tight enclosure via inlet 19 and channel 35 the bolt is tensioned. The shaft 22 may be provided with an annular piston 21 and a thrust pad 25 may be interposed between the shaft and nut 5 to prevent binding. In use, nuts 5 and 12 are run on to bolt 4, the sleeve being installed either before or after nut 12. Ring nut 13 is then rotated by lugs 15 to set seals 16 against flange 11. When hydraulic fluid is introduced via inlet 19, it acts on area 20 of the sleeve forcing the latter against the flange, and also enters channel 8 and groove 9 in nut 5 to effect pressure balancing. Simultaneously, hydraulic fluid acts on piston 21 via channel 23 in blind nut 12 to force the shaft towards nut 5 so that the toothed rings 6, 18 are in engagement. The fluid also acts on the blind nut thereby tensioning the bolt. End 34 of shaft 22 may then be rotated to run nut 5 up against flange 11. In a modification, see Fig. 2, nut C bearing against the flange is provided with a recess in which is enclosed a seal ring A loaded by a Belleville spring B. Studs as well as bolts may be tensioned  in the manner indicated.
Patent GB-1445628-A (GB)
Title: Prostaglandin derivatives
IPC: B01J31/00
Filed: 1973-10-18
Abstract: 1445628 Prostaglandins AMERICAN HOME PRODUCTS CORP 18 Oct 1973 [27 Oct 1972 26 July 1973] 48603/73 Heading C2C Novel compounds I in which R<SP>1</SP> is H, C 1-6  alkyl, alkali metal or a pharmacologically acceptable cation derived from ammonia or from a basic amine and (a) R is C 1-6  alkyl, A is -CH 2 -CH 2 - and B is trans -CH=CH-, or (b) R is methyl, A is cis -CH=CH- and B is trans -CH = CH-, or (c) R is ethynyl, A is -CH 2 CH 2 - and B is -CH 2 -CH 2 -, or (d) R is ethynyl, A is -CH 2 -CH 2 - and B is trans -CH=CH- or (e) R is ethynyl, A is -CH 2 -CH 2 - and B is trans -CH=CH-, are prepared by oxidizing a compound II or deketalizing a compound III in which Z is a ketalized oxo group and, if desired, esterifying or salifying a free acid obtained. 7 - (3 - Hydroxy - 3 - methyl - 1 - octenyl) - 1,4- dioxaspiro[4,4]non - 6 - ylheptanoic acid is prepared by hydrogenating 16-epi-PGA 2 , methyl ester to give 2-[3-hydroxy-1-octenyl)-5-ozo-cyclopentane - heptanoic acid, methyl ester, acetate, reacting this with ethylene glycol to give the corresponding ketal, hydrolysing this to give 7- (3 - hydroxy - 1 - octenyl) - 1,4 - dioxaspiro - [4,4]- non - 6 - yl - heptanoic acid, oxidizing this to give 7 - (3 - oxo - 1 - octenyl) - 1,4 - dioxaspiro- [4,4]non - 6 - yl - heptanoic acid, and reacting this with methyl magnesium bromide to give the desired compound. 2# - [(3RS) - 3 - hydroxy - 3 - methyloctyl] - 5- oxo - 1α - cyclopentane - heptanoic acid is prepared by hydrogenating 2#-[(3RS)-3-hydroxy-3- methyl - trans - 1 - octenyl - 5 - oxo - 1α - cyclopentaneheptanoic acid. Pharmaceutical compositions having bronchodilatory activity comprise a compound I together with a pharmaceutical carrier. The compositions may be in a form suitable for oral (e.g. inhalation) or parenteral administration.
Patent GB-1366908-A (GB)
Title: Data transmission
IPC: H04L1/18
Filed: 1972-10-12
Abstract: 1366908 Data transmission; error correction STANDARD TELEPHONES & CABLES Ltd 12 Oct 1972 [19 Oct 1971] 48618/71 Heading H4P Indicator signals reserved either for indicating correct reception (OK) in a duplex system, or for requesting repetition (RQ) because of a detected error, are included in the data signal format and thereby protected by whatever error-correcting system is in use. This obviates the need for data block sequence numbers, said to be necessary for identification of unrequested repeats arising from degradation of the indicator signal. Synchronizing is effected initially by repetition of special data blocks all containing RQ signals. Each transmitted signal block includes a data component from 2, Fig. 5, an indicator signal from 5 having two states RQ (repeat requested) and OK (reception correct), and parity bits from 3. Gates G3, G4, G5 controlled by distributer 1 pass these components to the output channel, and a gate G5 passes only the data to a store 4. Parity bits may be recirculated to the input of generator 3 depending upon the type of parity used. Received signals from the return channel pass through gate G7 to the data input 10, unless an error in the received signal is detected by parity check 5 or else the received indicator bit is found at 6 to be RQ; in these cases unit 9 blocks G7 and initiates retransmission cycle control unit 12. This causes gate G1 to retransmit the contents of store 4 which contains the last N = 4 data blocks; and G4 to add OK indicator bits (data block format, Fig.2, not shown). Both stations retransmit during this period. Restoration of synchronization (Fig. 4, not shown).-Loss of sync is indicated by four successive retransmission cycles each containing four blocks which fail to remove error indications, a counter 13 then responding by energizing sync control 14. This opens G2 to pass the special sync blocks instead of the data blocks, opens G4 to add OK indicator bits, blocks the store input G6, and primes detector 16 to look for received sync blocks. After one sync cycle, containing four sync blocks from each station, another four re-transmission cycles follow, whereupon data transmission restarts, or else another sync cycle if synchronization has still not been achieved. Initial synchronization (Fig. 3, not shown).- Both stations continuously transmit sync blocks from 15 with RQ indicator bits and parity. The first station acknowledges synchronization to its received signal by changing the RQ indication to OK. The second station to synchronize commences to transmit data (A, B, C &c.).
Patent GB-1017970-A (GB)
Title: Process for preparing olefinic hydrocarbons
IPC: C07C17/10
Filed: 1963-12-10
Abstract: Olefins are obtained from more saturated hydrocarbons by reacting with bromine to form a bromine derivative, dehydrobrominating in contact with an oxide of calcium, magnesium or zinc and recovering the olefin and reactivating the oxide and recovering bromine by treatment with oxygen.  The starting hydrocarbon may be a cyclic or acylic paraffin or mono-olefin, the product being the corresponding mono- or di-olefin.  Reaction with bromine is effected at a hydrocarbon to bromine mol ratio up to 20:1, with recycle of monobromides if dibromides are required, using a packed or unpacked reactor at 0-400 DEG  C. with a space velocity of 500-2500 volumes of reactant mixture per volume of reaction space per hour preferably at autogenous pressure. Liquid or gaseous phase may be used and a catalyst such as copper oxide or platinum on alumina or light activation may be used and a catalyst such as copper oxide or plainum on alumina or light activation may be used.  Hydrogen bromide is separated, unreacted hydrocarbons recovered and recycled and bromine compounds passed to dehydrobromination. This is effected over a solid sorbent comprising an oxide of calcium, magnesium or zinc and preferably 0.1-15% of copper, cerium, iron, nickel or cobalt. Reaction is effected at 50-550 DEG  C.  Preferably two reactors are used which are alternatively on reaction or regeneration. Regeneration is effected, e.g. with air, at 50-50 DEG  C.  The regeneration gases containing bromine are combined with products of a bromine recovery plant in which hydrogen bromide from the bromination is oxidized to bromine and water and bromine recovered and recycled. In examples (a) cyclohexane is converted to cycloehexane, (b) n-butane via dibromobutanes to butadiene, (c) isopentene to isoprene, (d) isobutane to isobutene, (e) methylcyclohexane to methylcyclohexene.
Patent GB-1529329-A (GB)
Title: Pharmaceutical compositions containing piperidylindole derivatives
IPC: C07D401/04
Filed: 1975-12-01
Abstract: 1529329 Pharmaceutical compositions ROUSSEL-UCLAF 1 Dec 1975 [9 Dec 1974 23 Oct 1975] 49210/75 Heading A5B Pharmaceutical compositions having antidepressant, antiparkinsonian and antiemetic properties comprise one or more 3 (4'-piperidyl)-indole derivatives of the formula: wherein R is H or C 1-5  alkoxy and R<SP>1</SP> and R<SP>2</SP> may be H or C 1-5  alkyl or a pharmaceutically acceptable acid addition salt thereof in association with a suitable pharmaceutical vehicle. The compositions may be administered orally, perlingually, transcutaneously, or rectally in the form of tablets, capsules, cachets, powder, granules, syrups, solutions, suspensions elixirs and suppositories.
Patent GB-1116390-A (GB)
Title: Improvements in or relating to gunn effect microwave amplifiers
IPC: H01L47/00
Filed: 1966-11-03
Abstract: 1,116,390. Gunn effect devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 3 Nov., 1966 [27 Nov., 1965], No. 49418/66. Heading H1K. A Gunn effect amplifier comprises at least two Gunn effect elements individually biased to act as amplifiers. The elements may be separate bodies or may be formed as sections of a single body by providing one or more intermediate contacts. The elements may operate at the same or different frequencies, and two or more may be connected to operate in parallel. One or more of the elements may be provided with at least one p-n junction for rectificaton or demodulation of the input or output pulses, and the behaviour of the elements may be modified by subjecting them to controlled coherent or incoherent light irradiation or to variations in temperature, mechanical bias or electrical bias.
Patent GB-1477535-A (GB)
Title: Handle for containers
IPC: A47J45/07
Filed: 1974-11-15
Abstract: 1477535 Handle for containers HEINRICH BAUMGARTEN EISEN-UND BLECHWARENFABRIK 15 Nov 1974 [17 Nov 1973] 49560/74 Heading A4A A handle for a pot or other container comprises a supporting arm for joining to the container, a handle body 1 having a cavity 2 to receive the supporting arm, the cavity 2 having associated means for fastening the handle body to the supporting arm, the means comprising at least one spring which is located by recesses 5, 6 in the handle body and is stressed and locked when the handle body is pushed on to the supporting arm, whereby the handle body is secured to the supporting arm and is pressed against the container, wherein the supporting arm lies against a wall 22 of the cavity and is provided with bent-over portions 18, 19 and wherein the handle body is fastened to the supporting arm by two V-shaped springs 7, 8 disposed in the recesses formed in a wall of the cavity, the springs each comprising a lead-in guide 23 and a retaining limb 24 and at the ends thereof nearest the open end of the cavity being located in recesses provided in the handle body and having the opposite ends thereof supported against a wall of the cavity and their retaining limbs bearing against the bent-over portions of the supporting arm. In the centre of cavity 2 there is formed on the handle body 1 a projection 10 against which a connecting member 9 for the two springs 7, 8 bears. The supporting arm comprises a central part 17 and bentover portions 18, 19 with concave end-faces to provide guides for the springs. The springs are held in grooves 25, 26 and are flattened by the supporting-arm bent-over portions 18, 19 as the body 1 is pushed over the arm until the body touches the container wall 11.
Patent GB-1449622-A (GB)
Title: Catheter assembly
IPC: A61F2/958
Filed: 1973-10-24
Abstract: 1449622 Catheters MEDICAL PRODUCTS CORP 24 Oct 1973 [26 Oct 1972] 49668/73 Heading A5R A balloon catheter having a central passage and an inflation lumen has a substantially cylindrical inflatable expansible cuff member 16 which conforms generally to the outer surface of the catheter in its deflated condition and is made of silicone rubber having a Shore hardness of not more than 30 so that at complete seal it conforms to irregularities of the contacted tissue surfaces without producing lesions. The catheter is used for the supply of oxygen or anaesthetic from a connector 6, the cuff 12 being inflatable from a connector 10 via a tube 8 and the lumen 9 formed in the wall of the catheter tube 2, which has a moulded tip 4, the tube 2 being formed of PVC and the outer cuff member 16 being attached by adhesive 17 to two seals 14, 15 which have a hardness greater than the cuff member and which in their relaxed condition have a diameter less than the outer diameter of tube 2 to provide a tight seal. The tip 4 of a plastics or elastomeric material has a hardness equal to or greater than that of the tube 2 and is secured to the tube by adhesive, thermal bonding, or friction or mechanical interlock. The distal end of the tip 4 is tapered and provided with a chamfer 25, the opposite tip end having a flange 20, which may be tapered, and into which the end of tube 2 fits against an abutment 21. The seals may protrude beyond the ends of cuff member 17, e.g. seal 15, or may be overlapped by member 16, e.g. seal 14. In a modification (Figure 7) the lumen 9 is provided by the passage extending through tube 8 which opens directly into the cuff, the seals 14, 15 being replaced by a cylindrical seal 43. Seal 43 may extend beyond member 16 or may be overlapped thereby and a space between the cuff and tip may either be left free or filled with adhesive. The ends of the cuff may alternatively extend into circumferential grooves in the tube 2. In Figure 10 (not shown) the cuff member 16 and the to seals are integrally formed, the seals either lying flat against tube 2 or having ridges located in circumferential grooves in the tube. The catheter may be set into a hyperbolic shape, and the tip material may be colour coded to identify the inner diameter of tube 2 and may be made radioopaque to render its position locatable in use. The durometer reading of the tube 2 may be in the range 60-85 with that of the tip from 60-95 and the seal or seals have a compression factor of from 5-50%. The cuff member 16 may have a tensile strength below 700 psi, an elongation greater than 1000 per cent, and a stress value upon sealing inflation of less than 30% of the breaking stress.