baber/WOPTO huggingface dataset:
Patent GB-993927-A (GB)
Title: Improvements relating to the treatment of aromatic extracts
Inventor: SCHNEIDER NORBERT
IPC: C10G21/00
Filed: 1963-06-20
Abstract: An extract rich in aromatics and obtained by the selective solvent extraction of a mineral oil is mixed with a solvent selective for aromatics and subjected to a low temperature crystallization step, the suspension so obtained being then warmed to a temperature at which all the precipitated material melts such that two liquid layers are formed, which are separated. Paraffins may be removed in an intermediate cooling stage by filtration, and the feedstock may first be freed of high molecular weight bituminous compounds by distillation. The recovered fractions may be subjected to a hot fuller's earth treatment or a hydrogenation treatment.  The feedstock may be an extract obtained by treating a mineral oil with furfural or sulphur dioxide.  The solvent selective for aromatics may be selected from acetone, furfural, and low molecular weight alcohols, with or without up to 5% water.
Patent GB-1108128-A (GB)
Title: Perfluoro (polyethylene glycol divinyl ethers) and polymers thereof
IPC: C08F16/24
Filed: 1966-06-02
Abstract: The invention comprises compounds of the general formula <FORM:1108128/C3/1> wherein n is an integer from 2 to 20.  The compounds are prepared by reacting hexafluoropropylene with a compound of the formula <FORM:1108128/C3/2> under anhydrous conditions in the presence of an inert polar solvent and of an alkali metal, silver or quaternary ammonium fluoride to give a compound of the formula <FORM:1108128/C3/3> which is converted to the desired product by (i) pyrolysis in the presence of an alkali metal carbonate or zinc oxide, or (ii) by reaction with an aqueous alkali metal hydroxide to give the corresponding carboxylic acid salt which is then dried and pyrolysed.  The diacyl fluoride starting material is prepared by reacting tetrafluoroethylene epoxide with oxalyl fluoride in an inert solvent and in the presence of a quaternary ammonium fluoride formed in situ by adding the corresponding cyanide to the reaction system.  The compounds of the invention may be converted to thermoset resins consisting essentially of recurring units of the formula <FORM:1108128/C3/4> wherein the unsatisfied valency bonds are linked to other of the same units, by polymerization at 20-250 DEG C. at atmospheric or under autogenous pressure and in the presence of a free radical polymerization initiator.  Reference has been directed by the Comptroller to Specifications 952,281 and 1,033,919.ALSO:The invention comprises compounds of the general formula <FORM:1108128/C2/1> wherein n is an integer from 2 to 20.  The compounds are prepared by reacting hexafluoroproylene with a compound of the formula <FORM:1108128/C2/2> under anhydrous conditions in the presence of an inert polar sovent and of an alkali metal, silver or quaternary ammonium fluoride to give a compound of the formula <FORM:1108128/C2/3> <FORM:1108128/C2/4> which is converted to the desired product by (i) pyrolysis in the presence of an alkali metal carbonate or zinc oxide; or (ii) by reaction with an aqueous alkali metal hydroxide to give the corresponding carboxylic acid salt which is then dried and pyrolysed.  The diaryl fluoride starting material is prepared by reacting tetrafluoroethylene epoxide with oxalyl fluoride in an inert solvent and in the presence of a quaternary ammonium fluoride formed in situ by adding the corresponding cyanide to the reaction system. Compounds of the formula <FORM:1108128/C2/5> where R is -CF3 or -C4F9, used as free-radical polymerization initiators, are prepared by reaction of CF3-C­C-R with N2F4. Reference has been directed by the Comptroller to Specifications 1,033,919 and 952,281.
Patent GB-156883-A (GB)
Title: Improvements in or relating to combined card and tea tables and the like tables
IPC: A47B25/00
Filed: 1919-10-09
Abstract: 156,883. Thomas, A., and White, J. Oct. 9, 1919. Double and multiple hinges.- The hinge comprises side plates secured to each of the leaves and baseboard, with connecting-links A and pivot pins B.
Patent GB-1081187-A (GB)
Title: Two-piece sealing ring
Inventor: CROWE ROBERT KELMAN
IPC: F16J9/16
Filed: 1965-06-11
Abstract: 1,081,187. Piston rings; seals. BRISTOL SIDDELEY ENGINES Ltd. June 10, 1966 [June 11, 1965]. No. 24702/65. Headings F2B and F2T. In a sealing ring for a sleeve valve or other piston engine or pump and comprising two similar superimposed split-ring members 10, 11, the end portions of each member co-operate to form a circumferential recess and each member has a bridge-piece 14 that fits into the recess of the other member. The recess is formed by projections 12 on the end portion of the member. In a modification (Figs. 4 and 5), opposing surfaces of the bridge-piece (17) and the end projections (16) are curved.
Patent GB-616328-A (GB)
Title: Hinge construction for toilet seats
IPC: A47K13/12
Filed: 1946-08-20
Abstract: 616,328. Hinges. McCABE, M. J. Aug. 20, 1946, No. 24820. Convention date, Sept. 20, 1945. [Class 65 (ii)] A friction hinge construction for pivoting a toilet seat 3 and cover 4 to one another and an underlying toilet bowl 1 comprises co-operating brackets 5 and 15 having aligned apertures and carried by the bowl and seat respectively, co-operating brackets 6 and 11 having aligned apertures and carried by the bowl and cover respectively, a hinge pin 21 carried by the cover and extending through the apertures of the co-operating bowl and seat brackets, a hinge pin 25 carried by the seat and extending through the apertures of the co-operating bowl and cover brackets, and friction braking means applied to the hinge pins. Braking effort when applied to hinge pin 25 controls pivotal movement of the seat and when applied to hinge pin 21 controls pivotal movement of the cover. As shown, the braking means comprises bolts 26 and 35 which extend through apertures in the bowl, their upper ends being formed with hooks 28 and 37 adapted to be pressed against the pins 25 and 21 respectively by the action of nuts 30 and 38 and springs 32 and 39 mounted on the screw-threaded lower ends of the bolts.
Patent GB-1537214-A (GB)
Title: Equipment for air-flushing filling and venting a hydraulic brake system
IPC: B60T17/00
Filed: 1977-06-15
Abstract: 1537214 Filling and testing hydraulic brake systems K JOST [trading as JOMA-MASCHINENBAU KARL JOST] 15 June 1977 [22 June 1976] 24920/77 Heading F2F Equipment intended for air-flushing, filling, venting and testing a motor vehicle hydraulic brake system (not shown) comprises, in a combined unit, a brake-fluid container 2, Fig. 2, a compressed-air container 1 and a pressure chamber 3 of variable volume, an automatic valve 11a, 11c, Fig. 2, disposed so that the brake fluid container 2 is connected through the valve with the pressure chamber 3 when the latter presents more than its minimum volume, a multiplepath selector valve 7, Figs 2, 3, and means 10, 30, 24, 23, 25, for connecting the pressure chamber 3 through the multiple-path valve 7 to an hydraulic brake system to be serviced, the valve 7 being also connected so as to control the application of compressed air from the compressed-air container 2 to the pressure chamber 3, e.g. by pressure regulator 9, Fig. 3, pipe 19, pipe 28, valve 7 and pipe 13. Preferably an elastic membrane 12 in pressure chamber 3 serves to permit variation of the volume of the chamber and prevent contact between the compressed air and the brake fluid.
Patent GB-367755-A (GB)
Title: Improvements relating to the production of printing cylinders for textile printing
IPC: G03F5/20
Filed: 1930-08-20
Abstract: 367,755. Photo-mechanical printing- surfaces. VELTER, L., 21, Hauptstrasse, Oetzsch, near Leipsic, Germany. Aug. 20, 1930, No. 24927. Convention date, Aug. 20, 1929. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] To produce a " lateral surface enlargement " in a print from a negative or stencil, printing is done by oblique light from a rotating lamp or projector a, Fig. 1, the negative or stencil in the frame e being separated from the sensitive plate by a transparent medium. The lamp a may be radially adjustable and supplemented by an additional central lamp c. The print is used for producing textile printing cylinders. To produce a printing plate with batching and contours for transfer to the cylinder (i.e. with contours showing in white) the negative is copied on to a sensitized flat printing plate with a grid or screen. After this another exposure is made through a diapositive printed in a copying frame as above described.
Patent GB-1251452-A (GB)
IPC: E04C/
Filed: 1969-05-16
Abstract: 1,251,452. Partition connecting device; clip &c. fastenings. S. BAHARY. 16 May, 1969 [17 May, 1968], No. 24963/69. Headings E1W and E2B. A connecting device for use in a partition comprises a pair of parallel resilient plastics connector members 26 spaced apart by support means 25 to define opposed pairs of flanges, each flange having a rib 27 on its outer side which is adapted in use to seat in a groove 27B provided in the flange of a channel 7 forming part of the partition structure. The channel 7 may be attached to or may form the edge of a panel (1 or 23) or may be a channel carrying only packing pieces 24 against which separate thin walling or glazing is used in the panel 23 may be held by a joint cover 13 attached by members 28 which snap fit into slots 33 formed in the outsides of the connecting device. The partition may incorporate compressed elastic bands 37 for sound insulation. The device may have holes 35 so that it may receive screws to attach it on the back of a channel 7 to facilitate the use of joint covers 13 disposed parallel to the plane of the partition but at right angles to those shown in Fig. 1. A modified form of channel 7, Fig. 4, not shown, has an additional groove to receive a pane of glass.
Patent GB-862028-A (GB)
Title: Improvements in or relating to stranding machines
Inventor: HINDS RONALD
IPC: H01B13/02
Filed: 1958-08-05
Abstract: 862,028. Stranding transposed multiple strip conductors. BRITISH INSULATED CALLENDERS' CABLES Ltd. Aug. 5, 1959 [Aug. 5, 1958], No. 25057/58. Class 109. A planetary wire positioning head for positioning non-circular wires with their major crosssectional axes parallel to a fixed plane as the wires are drawn from a rotatable bobbin carrier along paths converging towards the axis of rotation of the carrier comprises a rotor mounted on the front end of the carrier so as to rotate therewith and having a flange provided with bores whose axes lie in planes containing the axis of rotation of the carrier and are inclined to that axis, a die-supporting tube carrying a die to position the wire being rotatable in each bore at the same angular speed as but in the opposite sense to the rotor. A boss 4 of a rotor 1 is keyed at 5 on to a shaft 2 of the bobbin carrier to rotate therewith. Rotatably mounted in bushes 7 in bores in a flange 6 of the rotor 1 are tubes 8 supporting dies 9 having apertures the size and shape of the wires. On each tube 8 is a pinion 22 meshing with a toothed ring 21 rotating with a toothed ring 12 driven to rotate relatively to the rotor 1 by gearing 19, 18 from a toothed ring 11 fixed to the rotor 1, the gear ratios being such that the pinions 22, and hence the dies 9, rotate once for each rotation of the rotor but in the opposite sense. A strip straightening device 27, Fig. 6, comprising two pairs of rolls 33, 34 on eccentric shafts for adjusting the clearance between the rolls is provided on each tube 8, and lubricating and cleaning devices such as felt pads or rollers may be arranged in front of the dies 9. The bearings 7 for the tubes 8 may be lubricated from a point 48 through a passage 49 to a recess 50, an extension 51 of the passage 49 lubricating the ring 12. By removing a grub screw 31 and collar 32, the tube 8, die 9 and associated parts can be removed rearwardly as a unit from the flange. A guard 52, Fig. 1, is mounted on a pedestal 14 to cover the toothed rings 11,12.
Patent GB-619885-A (GB)
Title: Improvements in or relating to band-spread wireless receivers
IPC: H03J3/10
Filed: 1946-08-22
Abstract: 619,885. Radio receiving circuits. PHILIPS LAMPS, Ltd. Aug. 22, 1946, No. 25079. Convention date, Nov. 12, 1942. Drawings to Specification. [Class 40 (v)] In a radio receiver a tuning capacitor, or the mechanism controlling it, is so adapted that a minimum or maximum value of capacitance occurs during the travel of the system, and a switch is associated with the tuning capacitor so that when the latter passes through a minimum or maximum value fixed capacitors are switched into the tuned circuit in such a manner that the rate of change of resonant frequency with displacement decreases, so that during part of the travel coarse tuning over a broad band is obtained, and fine tuning over a narrow band, which may be part of the broad band, is obtained during the rest of the travel. The embodiment described is a frequency changing stage in which rotation of the ganged tuning capacitors causes the arrangement to be tuned successively through one of a number of narrow (in terms of wavelength) short wavebands to be spread, and one of a number of relatively broad wavebands providing coverage of the total range covered by the receiver. On moving from a particular broad waveband to a short waveband, the tuning capacitors are each shunted by a fixed capacitor and placed in series with another, also a second inductor is shunted across the main inductor in each tuned circuit. The set may be muted by shorting the input of the output valve during the change-over. A multi-pole, multi-way switch is provided for selecting any pair of bands. The rate of change capacitance of the tuning capacities with displacement may be arranged to decrease as the capacitance approaches a maximum.
Patent GB-598393-A (GB)
Title: Sensitive photographic paper
IPC: G03C1/79
Filed: 1945-09-27
Abstract: 598,393. Coated paper. KODAK, Ltd. Sept. 27, 1945, No. 25095. Convention date, Sept. 12, 1944. [Class 96] [Also in Group XX] High alpha-cellulose paper &c. is coated on one side with barium sulphate, e.g. in gelatine, dried and coated on 'both sides with a lowviscosity molten cellulose butyric acid ester, e.g. an acetate-butyrate, and plasticiser, a sensitive photographic silver halide emulsion being then applied to the mineral coated side. The cellulose ester may have a butyryl content of 47.7 to 55 per cent, and an acetyl content of 6.5 to 0 per cent. Specifications 540,765 ; 544,514, 544,659, [both in Group XX], and 553,061 are referred to.
Patent GB-879905-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: GIBBONS DAVID JOHN
IPC: G21C3/14
Filed: 1958-08-06
Abstract: 879,905. Nuclear fuel elements. GENERAL ELECTRIC CO. Ltd. July 29, 1959 [Aug. 6, 1958], No. 25192/58. Class 39(4). Nuclear fuel elements are flexibly joined together to form a chain. The Figure shows fuel cartridges 3 supported by telescopic bars 11 in graphite sleeves 4; there are insulating spacers 12. 'Each end of a bar 11 is supported by a tie rod 15 of Zr alloy; the lower ends of the rods support gimbal rings 22 from which hang the tie rods of the sleeve below. During charging or discharging the uppermost gimbal ring is gripped by the charge or discharge machine. The fuel cartridges comprise rods of uranium in Mg-Be alloy cans, and have straight cooling fins and helical swirlers 6. In other embodiments the graphite sleeves themselves are connected by bellows and used for suspension, or tubular fuel rods are threaded on a cable. Specifications 791,011, 879,902 and 879,903 are referred to.
Patent GB-1318007-A (GB)
Title: Arrangement for locally altering the brightness and or colour of an indicator medium
IPC: G01R13/40
Filed: 1971-04-19
Abstract: 1318007 Liquid crystal display devices BROWN BOVERI & CO Ltd 19 April 1971 [26 March 1970] 25198/71 Heading G5C [Also in Divisions G1 and H4] A device for displaying in analogue form the value of an applied voltage V M  consists of glass substrates 1 and 2 supporting film electrodes (e.g. tin oxide) 4 and 4<SP>1</SP>, between which is a layer 3 of a liquid crystal medium having an optical characteristic I which shows abrupt variation with potential difference above a threshold value. The film 4<SP>1</SP> has a much greater surface resistivity than the film 4, and opposite ends are connected to earth and to a fixed potential V 2  respectively, so that the potential distribution has the form shown in Fig. 3(a). To the conductive film 4 is applied a fixed potential V T  plus the voltage V M , giving a potential distribution across film 4 as shown for two values of V M  in Fig. 3(c). The material 3 is such that for a threshold voltage U T , I abruptly changes; thus all the material with x < x M  (Fig. 3(d)) will, for an applied voltage V M , have a value of I considerably different from that of the material for x > x M . Optionally the voltage V M  may be applied to contact 6, Fig. 4 (not shown), or the potential on one film may vary two-dimensionally, Fig. 2 (not shown).
Patent GB-1438223-A (GB)
Title: Biphenylyl alkanones
IPC: C07C51/00
Filed: 1974-06-06
Abstract: 1438223 Biphenylyl compounds DR KARL THOMAE GmbH 6 June 1974 [7 June 1973] 25226/74 Heading C2C Novel compounds I in which R 1 =H or halogen, R 2 =H or C 1-3  alkyl and R 3 =H or organic acyl, provided that when R 3 =H or COCH 3 , R 1  and R 2  are not both H, and optical isomers thereof, are prepared (a) when R 3 =H, by hydrolysis of a compound II in which R 4 =alkyl, aryl or aralkyl, in the presence of an acid, or (b) by decomposition of a compound III in the presence of an acid. In the above process (b), when the acid is a mineral acid, compounds I in which R 3 =H are formed, and when the acid is an organic acid, compounds I in which R 3 =organic acyl are formed. Compounds I in which R 3 =organic acyl are also obtained by acylation of compounds I in which R 3 =H, and compounds I in which R 3 =H are also obtained by hydrolysis of compounds I in which R 3 = organic acyl. Optional isomers are obtained by using an optical isomer of a compound III as starting material, or by resolving a racemic mixture of a compound I. Compounds II are prepared by reacting an appropriate biphenylyl aldehyde or ketone with an appropriate phosphono ester, e.g. ethyl 2-diethylphosphono-2-ethoxy acetate, and reducing the ester obtained with LiAlH 4 . Compounds III are prepared by reacting the corresponding biphenylyl acetyl halide with diazomethane. 2 - (21 - Fluoro - 4 - biphenylyl) - propionic acid chloride is prepared by reacting the acid with thionyl chloride. Antiphlogistic compositions for oral, rectal or parenteral administration, comprise a compound I together with a pharmaceutical carrier or excipient.
Patent GB-428267-A (GB)
Title: Improvements in or relating to formers for use in printing machines
IPC: B65H45/09
Filed: 1934-09-01
Abstract: 428,267. Folding paper. HOE & CO., Ltd., R., 109, Borough Road, London.- (Hoe & Co., Inc., R. ; 138th Street, New York, U.S.A.) Sept. 1, 1934, No. 25246. [Class 100 (i)] A former for a printing-machine has a flexible nose piece and means which operate on the nose piece, in a region between the free end of the nose piece and the junction of the nose piece with the body portion o the former, for flexing the nose piece to vary the setting of the curvature thereof. As shown, the triangular former 15 is composed of a thin steel plate supported and reinforced at its edges by round bars 16 which form the curved edges of the former, and a nose piece 27, preferably of thin flexible steel plate, secured to the main portion by screws. A lever 35 is pivoted at one end, in a bracket 29 secured on the inner side of the nose 27, and intermediately in a bracket 32 on the nose adjacent to the main portion of the former. The free end of the lever 35 is connected to an adjusting rod 36 secured to a carriage 17, whereby the curvature of the nose can be adjusted to suit the number of combined webs to be folded. The free unsupported end of the nose 27 will automatically adjust itself to suit the multiple web to be folded. The former 15 is mounted on the carriage 17, which can be adjusted laterally by a hand wheel 20 to suit the width of the webs, and the inclination of the former can be varied by the adjusting rod 18 secured to the carriage 17. The web W is delivered to the drag roller 24 mounted on a driven shaft 25, then over the former and between a pair of rotatable non-driven bending-rollers 43.
Patent GB-1129883-A (GB)
Title: Improvements in and relating to fuel cells
Inventor: TSEUNG ALFRED CHAN CHUNG
IPC: H01M8/02
Filed: 1964-06-18
Abstract: 1,129,883. Fuel cells. ENERGY CONVERSION Ltd. 16 Sept., 1965 [18 June, 1964], No. 25276/64. Heading H1B. A semi-solid electrolyte for a fuel cell of the type in which a solid particulate filler material is dispersed in the molten electrolyte, has the filler material formed within the electrolyte material by chemical decomposition of a starting material in admixture with the electrolyte. In this way, it is claimed, the filler is present in a more finely divided form. The filler is preferably magnesia.
Patent GB-244689-A (GB)
Title: Improvements in typographical composing and casting machines
IPC: B41B11/18
Filed: 1925-10-10
Abstract: 244,689. Linotype & Machinery, Ltd., (Mergenthaler Setzmaschinen Fabrik Ges.). Oct. 10, 1925. Type-bar-making machines; keyboards. -In machines having main and auxiliary magazines 1, 2 located side by side, the keyboard 3 is so enlarged as to contain a separate key for each channel of both magazines. The machine may have a number of main and a number of auxiliary magazines in superposed relation.
Patent GB-383680-A (GB)
Title: A process of treating sunken pavement and other constructions
IPC: E01C23/10
Filed: 1931-09-09
Abstract: 383,680. Correcting paving and other settlements. NATIONAL EQUIPMENT CORPORATION, 30th Street, Milwaukee, Wisconsin, U.S.A. Sept. 9, 1931, No. 25324. Convention date, June 4. [Classes 20 (iv) and 107.] A process for treating sunken pavement and other constructions comprises forming a plurality of openings 3 in the sunken part and forcing a mobile filler through each of the openings in succession to move this part gradually to its normal plane whilst maintaining all of the remaining openings free so that they serve as relief openings. Additional relief openings may be provided in the form of slots 1 extending transversely from both sides of the road, and after filling these openings with a filler, which is allowed to set to prevent leakage at these parts, the mobile filler is pumped under the construction through a nozzle applied successively to the openings 3. For brick pavements, an iron grating 6, Fig. 7, may be provided to prevent uneven lifting. The filler may consist of cement, water and soil. After the pavement has been elevated, a relatively fluid filler is supplied to fill all the spaces beneath the construction. Specification 377,341 is referred to. The Specification as open to inspection under Sect. 91 refers also to the application of the invention to the treatment of the sunken parts of walls. This subject-matter does not appear in the Specification as accepted.