baber/WOPTO huggingface dataset:
Patent GB-1163618-A (GB)
Title: Improvements in or relating to the Production of Nucleotides and Oligonucleotides.
Inventor: MORAVEK JOSEF
IPC: C07H1/02
Filed: 1966-12-01
Abstract: 1,163,618. Preparation of nucleotides and oligonucleotides. CESKOSLOVENSKA AKADEMIE VED. 1 Dec., 1966 [2 Dec., 1965], No. 53845/66. Heading C2C. A process for producing a nucleotide or oligonucleotide from a nucleoside comprises heating a nucleoside in admixture with an alkali metal phosphate or a nucleoside 2<SP>1</SP>(3<SP>1</SP>) -phosphate, and isolating the desired products. The preferred reaction temperature range is 155-160‹ C. The molar ratio of nucleoside to alkali metal phosphate or to nucleoside 2<SP>1</SP>(3<SP>1</SP>)-phosphate is preferably from 1 : 1 to 1 : 10, more preferably 1 : 5. The process may be used to produce radio-active nucleotides, and examples describe the use as starting materials of uridine, 6-azauridine - 4,5 - <SP>14</SP>C, 6 - azacytidine, 5 - hydroxyuridine, uridine-2-<SP>14</SP>C, uracil xyloside and tubercidine.
Patent GB-1143379-A (GB)
Title: Cutter for forming a helical slit
Inventor: KAMIMURA MASATO
IPC: H02G1/12
Filed: 1967-11-27
Abstract: 1,143,379. Cutting tubes. NIPPON ELECTRIC CO. Ltd. 27 Nov., 1967 [29 Nov., 1966], No. 53892/67. Heading B4B. [Also in Division H2] A circular slit followed by a helical slit may be formed in a tube, by a member having an open-ended groove into which the said tube can slide to be slit by a blade along the side of the groove, the member being tiltably mounted so that the blade can initially act perpendicularly to the axis of the tube to cut the circular slit and then can tilt to act obliquely and cut the helical slit. As shown a slitter cartridge 6 having a cutting blade down one side of a U-shaped slot cut into it can slide by means of projections on its arms in grooves 4a, 5a in parallel guide frames 4, 5. Guides 4, 5 are fixed to a rotatable disc 2, a tube guide disc 11 being arranged such that holes 11a place the axes of the tubes of different sizes in line with the axis of the disc 2. As the disc 2 is rotated the slitter cartridge under the action of gravity cuts a circular slit in the tube. The bottom of the slot in block 6 is slanted so that when the slanted edge reaches the tube the block is tilted with one of the projections on its arms going into recesses 4b, 5b respectively in guide frames 4, 5. The tilted cutter produces a helical slit in the tube and also moves the tube out of the cutter. The block 6 can be removed by opening lid 7 which is hinged at 8 and held closed by catch 9. The disc 11 is located in each position by a detent 12.
Patent GB-1367577-A (GB)
Title: Process for preparing a fibrous synthetic polymer materia l
IPC: D01F1/00
Filed: 1972-11-22
Abstract: 1367577 Synthetic paper MITSUBISHI CHEMICAL INDUSTRIES Ltd 22 Nov 1972 [22 Nov 1971 3 July 1972 18 July 1972] 53898/72 Heading D2B [Also in Divisions B5 and C3] Synthetic paper is made from synthetic polymer fibres prepared from a hydrophobic polymer and a hydrophilic polymer by a flashspinning method (see Division B5). The hydrophobic polymer may be a polyolefin polyamide, polyester, polyacrylonitrile, or polyoxymethylene. The hydrophilic polymer may be polyvinyl alcohol, polyacrylamide, carboxymethyl cellulose, sodium alginate, sodium polyacrylate, starch, propylene glycol ester of alginic acid, polyvinyl pyrrolidone, partially hydrolysed polyvinyl acetate, a copolymer of ethylene-vinyl alcohol, or polyvinyl acetate. Wood pulp may be included in the paper.
Patent GB-1446519-A (GB)
Title: Solid polyimide compositions
IPC: C08L77/00
Filed: 1974-12-19
Abstract: 1446519 Shapeable polyimide composition UPJOHN CO 19 Dec 1974 [16 Jan 1974] 54936/74 Addition to 1354926 Heading C3R A solid polyimide composition of softening point 50 to 150 C. comprises (a) 85 to 65 wt. per cent of a copolyimide characterized by the recurring unit where in 10 to 30% of the units R is and in the remainder R is and (b) 15 to 35 wt. per cent of at least one dipolar aprotic solvent and/or phenol each having a boiling point at least 50 C. above the softening point of the blend but not above 225 C. The copolyimides are claimed in the parent Specification 1,354,926 but have high softening points rendering shaping by conventional techniques difficult or impossible; the present invention provides compositions which can be readily shaped by such techniques, optionally with incorporation of fillers, e.g. glass fibres, microspheres or microballoons, and from which (b) can be removed after shaping by volatilization. Specified solvents (b) are dimethyl sulphoxide or acetamide, hexamethylphosphoramide, N-methyl, ethyl or vinyl-2- pyrrolidone, tetramethyl urea, pyridine, phenol, o-, m- or p-cresol, guaiacol, mesitol and the xylenols. In making the composition (b) may be dissolved in 1 to 10 volumes of a lower boiling solvent, e.g. acetone, methanol, methylene chloride, diethyl ether or MEK, which is removed after blending. In specific examples a polyimide from 3,3<SP>1</SP>,4,4<SP>1</SP>-benzophenone tetracarboxylic dianhydride and an 80/20 mix of toluene diisocyanate / 4,4<SP>1</SP>-methylenebis - (phenyl isocyanate) is blended in various proportion with various solvents (b). A proprietary antioxidant is also included in Example 4 and glass microballoons in Example 5. Reference is also made to Specifications 1,354,927 and 1,446,520.
Patent GB-1203594-A (GB)
Title: Improved electrode for an electrical current source, a method for manufacturing the electrode, and an electrical current source comprising the electrode
Inventor: BOCCIARELLI CARLO VITTORIO
IPC: H01M4/90
Filed: 1967-12-04
Abstract: 1,203,594. Fuel cell cathodes. C. V. BOCCIARELLI. 4 Dec., 1967 [24 Jan., 1967], No. 55032/67. Heading H1B. [Also in Division C7] Fuel cell cathodes comprise a catalyst which is a stoichiometric ordered alloy of Cu with Au doped with a minor quantity of a material for improving the catalytic activity of the alloy. Stoichiometric alloys specified are Cu 3 Au, CuAu and Cu 3 Au 2 . The dopant may be a Group II A , II B , III A , III B , IV A  or IV B  element preferably Ga, A1 or In. An electrode is described comprising a coating of synthetic resin binder containing flakes of A1 doped Cu 3 Au on an apertured Ni-plate which may have been Au-plated. The catalyst flakes used preferably have their major surfaces in the 1,0,0 crystal plane. The electrodes can be used in alkaline H 2 O 2  fuel cells.
Patent GB-1106940-A (GB)
Title: Nestable bodies for containers and their manufacture
IPC: B29C49/48
Filed: 1965-12-29
Abstract: 1,106,940. Plastics containers. MOBIL OIL CORPORATION. 29 Dec., 1965 [31 Dec., 1964], No. 55060/65. Heading B8D. [Also in Division B5] A container body is moulded (see Division B5) of flexible plastics material and has a series of ribs 14, 24, 30 on opposed walls 12, 28 the intermediate walls 34 being sufficiently flexible to enable them to be drawn inwardly to extract the body from a mould 10 or another similar container body. The ribs decrease in depth at their ends. The upper end of the container body has panels 40, 42 sloping to a closed neck 38; the lower end may be closed by means of a member 22 heat-sealed to the body side walls. The body may be of polygonal, circular or oval horizontal cross-section, and may be nested together with a similar body before the ends are applied. The side walls 34, 36 may have horizontal or vertical ribs. The body may be thermo-formed from a plastics polymer e.g. polyethylene, polypropylene or nylon (other suitable plastics are disclosed). A closed neck 38 may be cut open and reclosed by a plastics plug or cork.
Patent GB-1403722-A (GB)
Title: Production of a sound track on a photographic silver halide film
IPC: G11B7/2433
Filed: 1971-11-26
Abstract: 1403722 Producing sound track on photographic silver halide film AGFA-GEVAERT 21 Nov 1972 [26 Nov 1971]55093/71 Headings G2E and G2C A sound track is produced on a photographic silver halide reversal colour film in a process wherein after bleaching the silver contained in the colourdeveloped material only the sound track area of the material is treated with a redeveloper composition comprising a developing agent and an organic heterocyclic fog-inhibiting compound containing in a 5-or 6-membered hetercyclic ring a structural part corresponding to one of the tautomeric structural groups optionally in salt form; comprising (1) imagewise exposing, (2) simultaneously or subsequently to (1) exposing the film in its area intended for the sound track through a negative sould track original, (3) black and white developing to produce negative silver images in the picture areas and a positive sound track record in the sound track area, (4) treating the sound track area with a fixing composition, (5) reexposing to visible light, the re-exposure being performed after step (3) or (4), provided that if the re-exposure is effected before step (4) only the picture areas are exposed, (6) washing to remove the complexed silver halide of the sound track area and leaving the non-developed silver halide of the picture areas unaffected, (7) colour developing, (8) treating the colour developed film with one or more substances that reoxidize the developed silver to bleach the silver of the picture as well as of the sound track areas, (9) removing the surplus of the bleaching substances and their water soluble reaction products by rinsing and drying, (10) subjecting only the sound track area to redevelopment with a developer solution comprising a developing agent with the organic heterocyclic fog-inhibiting compound as hereinbefore setforth and (11) rinsing the film and removing silver compounds obtained in the bleaching step from the picture areas by a fixing treatment with a complexing agent, and removing the surplus of redeveloper by washing. Between steps (7) and  (8) the film may be (a) rinsed and (b) overall fixed. The fog inhibiting compound may be 3- amino-#2-1, 2, 4-trazoline-5-thione (EX 1), #2- 1, 2, 4-triazoline-5-thione (Ex 2 and 5), 4, 6- dimethyl-1, 2-dihydro-pyrimudine-2-thione (Ex 3) 5-amino-#4-1, 3, 4-thiadiazoline-2-thione (Ex 3) 4) or 3-amino-#2-1, 2, 4-triazoline-5-thione (Ex 6). The redeveloper solution may contain a polymer. The transparency of the highlights is improved by redevelopment.
Patent GB-551941-A (GB)
Abstract: 551,941. Totalizators. TOTALISATORS, Ltd. (Julius. G. A.). June 6,1941, No. 16014/42. Divided out of 551,919. Drawings to Specification. [Class 40 (i)] A numerical travelling band indicator for a totalizator is provided with a blank between the digits 0 and 1 and arrangements are provided whereby the indicator can be moved from 0 to blank under control of a manually operated key associated with the counting apparatus. The invention is described with reference to a system identical with that described in Specification 551,919. Specification 551,943 also is referred to.
Patent GB-1314358-A (GB)
Title: Arrangement for automatically controlling pneumatic devices
IPC: B25D9/16
Filed: 1970-11-20
Abstract: 1314358 Pneumatic devices; valve gear W KOSS 20 Nov 1970 [24 April 1970] 55382/70 Headings F1M and F1S The invention relates to a pneumatic device in which the capacity of a working or valve chamber is varied cyclically either by the displacement of a piston 5 in a working cylinder 1 or by expansion and contraction of an inflatable element. A piston valve comprises a valve stem 8 urged into a first and starting position by resilient biasing means 22 and provided with two opposed-acting pistons 9, 10 the first of which is of smaller diameter than the second, movable in separate valve chambers. In the starting position the valve chamber containing the first piston communicates through a channel 12 controlled by the valve with an inlet 18 for connection to a source of compressed air, a control valve 19 being provided, and through a permanently open constriction 14 with a working chamber of the pneumatic device. The valve chamber containing the second piston is in open communication with the working chamber of the pneumatic device and also communicates with the ambient atmosphere through a port 16 that is uncovered by the valve in a second and end position. The piston 5 is acted on by a spring 4.
Patent GB-1184600-A (GB)
Title: Tape for Covering Joints in Constructional Parts.
IPC: E04F19/02
Filed: 1967-12-06
Abstract: 1,184,600. Laminates. SCHILDKROT A.G. 6 Dec., 1967 [6 Dec., 1966], No. 55429/67. Heading B5N. A tape for covering joints in constructional parts, comprises a tape of a thermoplastic resin or of an elastomer, one face of which is provided on two parallel edge zones (e.g. transverse) with a strip of a self-adhesive, the self-adhesive strip being protected before use by covering strips of readily removable material. The thermoplastic synthetic resin specified is polyisobutylene and the elastomer is butyl rubber, whilst the covering strips may be of siliconetreated paper or foil.
Patent GB-1364649-A (GB)
Title: Material exchange column fitted with a liquid distributor
IPC: B01D3/00
Filed: 1971-11-30
Abstract: 1364649 Gas/liquid contact apparatus SULZER BROS Ltd 30 Nov 1971 [31 Dec 1970] 55539/71 Headings B1F and B1R A liquid distributor has slots 3, Fig. 7, forming overflows, and perforations 4, Fig. 6, in the base. The distributor ensures uniform distribution of liquid and may form part of a packing in gas/liquid contact apparatus, e.g. for distillation, rectification, or isotope separation.
Patent GB-1444817-A (GB)
Title: Bioresorbable surgical articles
IPC: A61L27/00
Filed: 1973-11-30
Abstract: 1444817 Poly(alkylene succinate) surgical articles RHONE-POULENC SA 30 Nov 1973 [1 Dec 1972] 55720/73 Heading C3R [Also in Divisions A5 and D1-D2] An implantable surgical article which is at least partially bioresorbable consists at least partially of a polyester having units where R is linear or branched C 2-6  alkylene. The article may be a suture element, e.g. bristle, single, twisted, stranded, gathered, texturized or lapped filament, tape, tent, or spun fibre; or it may be a prosthesis for replacing, supporting, or assisting in the repair of a human or animal organ and may be a solid-walled tube, a kitted tube, e.g. "T"- or "Y"-tube, a plate, a screw, or a ring; it may be a knotted or woven fabric. The polyester may be in a coating on a non-bioresorbable core, e.g. of poly(ethylene terephthalate or adipate), polyamide, or polypropylene, linen, or silk. Or the polyester may be combined with another bioresorbable material, of the polylactide or polyglycolide type. It may also contain a filler, dyestuff or plasticizer. It may be sterilized, e.g. by irradiation or immersion in ethanol.
Patent GB-1460287-A (GB)
Title: Vehicle brake pedal arrangements
IPC: B60T7/06
Filed: 1973-12-03
Abstract: 1460287 Brake booster and pedal assembly GIRLING Ltd 18 Nov 1974 [3 Dec 1973 8 March 1974] 55875/73 and 10589/74 Headings F2E and F2F A brake pedal assembly, for actuating a master cylinder 4a having power assisting means 4, comprises a pedal 1 pivotally connected intermediate its ends by a pivot pin 5 to an actuating member 3, pivotally connected at its end by a pivot pin 8 to a link 9 pivotally connected to a fluid operated motor having a piston 11 working in a cylinder 12, and biased by a return spring 6 against a fulcrum D on the frame 7, a tension spring 14 biasing the upper end of the pedal towards cylinder 12 and the arrangement being such that if the booster fails spring 14 becomes expanded to move the upper pivot axis B rearwardly until the pedal again abuts fulcrum D and alters the pedal lever ratio.
Patent GB-1536843-A (GB)
Title: Telephone answering machines
IPC: H04M3/48
Filed: 1975-12-22
Abstract: 1536843 Telephone answering machine ANSAFONE Ltd 22 Dec 1975 [24 Dec 1974] 55880/74 Heading H4K A telephone answering machine which reverts a tone signal to a calling subscriber so that he may signal his own number to the machine for storage therein, comprises an automatic dialler that is enableable by the machine owner so as to "dial" the stored number. Operation.-When the owner-subscriber is absent a detector circuit 1 is enabled by the closure of switch S1 so that persistent incoming ringing current is effective to operate relay A whose contacts Al and A2 respectively loop the line and actuate the control circuit 3. The latter enables a control circuit 6 which holds relay A even when the ringing current ceases and a tone generator 5 which applies a predetermined tone to line L1, L2. The caller on receipt of the tone dials his own number. The dialled signal is shaped by pulse shaper 7 and stored in store 9 via binary/decimal converter 11. When the dialled signal ceases, control circuit 3 de-energizes relay A through circuit 6, and energizes an indicator light L. Subsequent caller's numbers are stored, in order, up to a maximum of, e.g. 10. The owner-subscriber can call back the earliest caller by lifting his handset and pressing button PB which actuates the control circuit 3; relay A is energized through circuit 6 and the line is looped by contacts Al. A detector 13 responds to dial tone and signals to the control circuit 3, which via circuit 8 energizes relay B whose contacts Bl short-circuit the line. The control circuit 3 causes store 9 to be read out so that voltage pulses representing the stored number are applied to the line through contacts Al of relay A. If the caller has been contacted his number is erased from the store by pressing button CB. Subsequent calls are similarly treated. If the owner-subscriber presses switch S2 instead of button PB in addition to the stored number being called the dialling pulses are stored by the shaper circuit 7 and by subsequently pressing button PB, the same number, stored in circuit 7, can be dialled. The caller's set may be modified by additional circuits, so that it can store the caller's number and automatically transmit it to an absent subscriber's machine on reception of the predetermined tone signal.
Patent GB-1454219-A (GB)
Title: Sliding clasp fastener
IPC: A44B19/12
Filed: 1974-12-30
Abstract: 1454219 Sliding clasp fastener YOSHIDA KOGYO KK 30 Dec 1974 [29 Dec 1973] 55987/74 Heading E2S The invention relates to a sliding clasp fastener comprising a pair of oppositely-disposed stringer tapes 14 each having a respective row of interlocking elements E formed from a plastics filament into a continued meander structure each element E consisting of two leg portions 12, 12' disposed astride the longitudinal edge 15 of the tape, a coupling head 11 extending from the leg portions and adapted to interlock with coupling heads of two mutually adjoining elements of the opposed row and half of each two connecting portions 13, 13' lying remote from the coupling heads 11 and merging into adjoining elements. According to the invention the leg portions 12, 12' are each provided with deformed portions 16, 16 at lateral sides thereof and further, with a flattened, enlarged, undersurface held in intimate contact with the stringer tape and each connecting portion is provided with a respective recess 18, or 18' for receiving therein a side flange of a slider, not shown, and further with a flattened, enlarged underface 21 held in intimate contact with the stringer tape. The enlarged underfaces of the leg and connecting portions are bonded, or fused, to the stringer tape with the use of an adhesive compound or, by means of high frequency or, supersonic welding. Sewing threads may additionally be employed.
Patent GB-1371336-A (GB)
Title: Air cooled wheel assembly
IPC: F16D65/847
Filed: 1970-11-25
Abstract: 1371336 Vehicle wheels DUNLOP HOLDINGS Ltd 16 Nov 1971 [25 Nov 1970] 56002/70 Heading B7C [Also in Division F2] A wheel, mountable on an axle 16, is air cooled by an impeller 27 rotatably mounted on a support member 35 carried by the wheel. The impeller 27, which has a plurality of blades 62, is mounted on two bearings 34 in the support member 35 which is, in turn, mounted at one end on a grating 32 forming the end of a frustoconical tube 30 which directs air from the impeller to a brake assembly on the wheel. A motor 42 driving the impeller 27 has a tubular drive shaft 44 coupled to a spring loaded friction clutch comprising an axially fixed sleeve 50 and an axially slidable spring biased sleeve 54 whichfrictionally engages a member 38 screwed to the impeller. The friction clutch surfaces 48 may be radial or frusto-conical. An outer-skid wheel sensor 11 is coupled to the rotating parts of the wheel by a shaft 60 passing through the centre of the motor drive shaft 44 and fixed to the support member 35. The brake assembly comprises a plurality of rotatable and stationary splined discs 21, 22 the stationary discs having friction plates 24. The discs 21, 22 are moved axially against a fixed stop 26 by a plurality of spaced hydraulic actuators 25.
Patent GB-1161817-A (GB)
Title: A Medical Apparatus including a Treatment Chamber.
IPC: A61G7/10
Filed: 1966-12-16
Abstract: 1,161,817. Treatment chambers. O. H. DRAGER [trading as DRAGERWERK, HEINR & BERNH. DRAGER]. 16 Dec., 1966 [16 Dec., 1965], No. 56557/66. Heading A5R. In an infant incubator, the patient support 6 is pivoted at or near one end 8a about a vertical axis provided by a pin 7 fixed to the incubator housing or a supporting plate in the housing. The incubator has transparent side and top walls 1 and a horizontally pivotal window 3 in one side wall to provide an opening through which a part of the support 6 projects when it is pivoted about the pin 7 from its normal position in the incubator. A sliding element 12 on the support then engages a groove 13 in a side wall to prevent the support tilting. The support slides on rails 11 as it is pivoted. A vertical end wall 9 at the end of the patient support which may be projected from the housing may be swung downwardly.
Patent GB-1431690-A (GB)
Title: Adhesive composition and method of stabilising adhesive c  compositions
IPC: C09J111/00
Filed: 1973-12-11
Abstract: 1431690 Iron-butyl rubber laminate TEROSON GmbH 11 Dec 1973 [11 Dec 1972] 57404/73 Heading B5N [Also in Division C3] An adhesive composition of a mercaptan modified polychloroprene, MgO, ZnO, a phenolic antioxidant, an alkyl phenol-formaldehyde resin, a terpene-phenol resin dissolved in a solvent mixture of ethyl acetate, light petrol, toluene and trichloroethylene with or without the addition of a molecular sieve loaded with 18% by weight of triethylene tetra-amine as antiflocculant is coated on to butyl rubber film and after exposure to air for 10 minutes the coated film is bonded to sheet iron.