baber/WOPTO huggingface dataset:
Patent GB-647732-A (GB)
Title: Improvements in or relating to the manufacture of chlorinated rubber
IPC: C08C19/12
Filed: 1947-11-01
Abstract: Chlorinated synthetic rubber is obtained by concurrently adding in an oxygen-free atmosphere a chlorinating agent and an aqueous solution of a chlorination initiator to an acid aqueous dispersion of an unsaturated synthetic rubber free from dissolved oxygen, the rate of addition of the initiator solution being so regulated in relation to the rate of the chlorinating agent as to maintain the initiator in the dispersion.  The chlorinating agent may be elementary chlorine, alkali metal hypochlorites such as sodium hypochlorite, alkaline earth metal hypochlorites, hypochlorous acid, and chloramine T. Specified synthetic rubbers are butadiene polymers and copolymers of butadiene with styrene.  A chlorination initiator is defined as a water-soluble metal salt yielding metal ions oxidizable by alkali metal hypochlorite in aqueous solution with removal of only one electron per atom. Suitable initiators are water-soluble ferrous salts such as the chloride or sulphate, cobaltous sulphate, nickelous chloride, nickelous nitrate, nickelous sulphate and titanium trichloride. Specification 634,241 is referred to.ALSO:Chlorinated rubber is obtained by concurrently adding in an oxygen-free atmosphere a chlorinating agent and an aqueous solution of a chlorination initiator to an acid aqueous dispersion of natural or unsaturated synthetic rubber free from dissolved oxygen, the rate of addition of the initiator solution being so regulated in relation to the rate of the chlorinating agent as to maintain the initiator in the dispersion.  The chlorinating agent may be elementary chlorine, alkali metal hypochlorites such as sodium hypochlorite, alkaline earth metal hypochlorites, hypochlorous acid, and chloramine T. Specified synthetic rubbers are butadiene polymers and copolymers of butadiene with styrene. A chlorination initiator is defined as a water-soluble metal salt yielding metal ions oxidizable by alkali metal hypochlorite in aqueous solution with removal of only one electron per atom. Suitable initiators are water-soluble ferrous salts such as the chloride or sulphate, cobaltous sulphate, nickelous chloride, nickelous nitrate, nickelous sulphate and titanium trichloride. In examples a stabilized 20 per cent natural rubber latex was treated with caustic soda to remove all dissolved oxygen in a vessel which had been air-freed by means of a nitrogen current. Hydrochloric acid was then added and sodium hypochlorite and ferrous sulphate the temperature being kept below 25 DEG  C.  After neutralization with ammonia and the addition of sodium cyanide solution to remove iron salts, the dispersion was creamed with sodium alginate and could be precipitated with alcohol.  The stabilizer may be polyethylene glycol ether, especially one derived from oleyl alcohol, or a polyethylene glycol ester, or a quaternary ammonium compound such as dodecyl dimethyl benzyl ammonium chloride, or cetyl pyridinium bromide.  Specification 634,241 is referred to.
Patent GB-1375514-A (GB)
IPC: H01M12/08
Filed: 1973-06-20
Abstract: 1375514 Gas electrodes ESB Inc 20 June 1973 29239/73 Heading H1B A gas electrode comprises a metallic grid 32; a particulate base metal catalyst 30 of sheet form bonded around the grid by an organic binder, the metal catalyst having a layer of carbon on the surface of the metal particles; and a sheet 34 of microporous polytetrafluoronated hydrocarbon adhering to one surface of the catalyst sheet. In one method of making the electrode the surface of the particles of base metal catalyst powder, e.g. nickel, cobalt or iron is oxidized by heating in air to produce an oxide layer, which may be only molecules thick, and the hot oxidized powder is exposed to methane to replace the oxide layer by a thin carbon coating. An organic binder, e.g. PTFE is mixed with the carbonized metal powder and the mixture is spread on the grid and bonded thereto. A microporous sheet, e.g. of PTFE, is then attached to one surface of the catalyst layer. In a modified method, a slurry is formed by adding water to the carbonized metal powder and the slurry is spread on the grid. After placing the sheet of PTFE, heat and pressure are applied to form the electrode. The electrode is intended for use in a rechargeable alkaline cell. A metal-air cell is described with reference to Fig. 3 (not shown), the sheet of microporous PTFE being on the air side, the anode being of Zn, Cd, Al, Mg or Fe. In another cell described with reference to Fig. 4 (not shown), the electrode is fed with hydrogen or methane and functions as an anode, the cathode being a metallic oxide, e.g. nickel oxyhydroxide silver oxide, or mercuric oxide. Two of the gas electrodes may be used in a fuel cell (Fig. 5, not shown), and supplied respectively with oxygen and hydrogen.
Patent GB-1070264-A (GB)
Title: A tempering device for flowable confection masses
IPC: A23G1/18
Filed: 1965-07-12
Abstract: A device for tempering chocolate and siimlar fat-containing confection masses in a flowable state comprises a cylinder (1) with means for maintaining the wall of the cylinder at a selected cool temperature and inlet and outlet conduits (11, 13) at opposite ends of the cylinder for the mass to be tempered, there p  being rotatably disposed within the cylinder a roller (8) of such diameter that a narrow annular space (18) is present between the roller and the inner wall of the cylinder, the roller being provided with at least one scraper means (19) extending to the cylinder wall, and in the surface of the roller a suction groove (21) posteriorly of the scraper means, open at the inlet end of the cylinder and closed at the outlet end, and a pressure groove (22) anteriorly of the scraper means, open at the outlet end of the cylinder and closed at the inlet end.  A pressure and a suction groove are associated with each scraper, of which there are preferably three.  Overflow means, in the form of channels through the scraper joining the suction and pressure grooves may be provided, preferably of variable cross-section area.  A number of such devices may be joined end to end, for example either with the opening of the suction groove adjacent to the opening of the pressure groove of the adjoining roller, or with the like grooves aligned, in which latter event channels to join the suction and pressure grooves are provided.
Patent GB-489257-A (GB)
Title: Improvements in or relating to centrifuging sugar
IPC: B04B13/00
Filed: 1937-10-28
Abstract: Charges of sugar grains and syrup are introduced successively into a centrifuge which is accelerated after each charge to a high speed such as 1250 R.P.M. for a forty inch centrifuge within a period of 40 seconds, and the acceleration is continued until the centrifuge reaches a speed of 1500 R.P.M.  The charge is introduced at a temperature between 170 and 195 DEG  F. while the machine is rotating at a speed between 300 and 600 R.P.M. and the treatment eliminates more than 85 per cent of the syrup before the full speed is reached. While the centrifuge is running at full speed the crystals are sprayed with washing water at a temperature between 150 and 195 DEG F.  Specifications 455,554 and 459,682, [Group II], are referred to.ALSO:Charges of sugar grains and syrup are introduced successively into a centrifuge which is accelerated after each charge to a high speed such as 1250 R.P.M. for a forty inch centrifuge within a period of 40 seconds, and the acceleration is continued until the centrifuge reaches a speed of 1500 R.P.M.  The charge is introduced at a temperature between 170 and 195 DEG  F. while the machine is rotating at a speed between 300 and 600 R.P.M., and the treatment eliminates more than 85 per cent of the syrup before the full speed is reached. While the centrifuge is running at full speed the crystals are sprayed with washing water at a temperature between 150 and 195 DEG F.  Specifications 455,554, [Group VI], and 459,682 are referred to.
Patent GB-948563-A (GB)
Title: Floating supplemental bearings for roller levelers
Inventor: SHIELDS WILLIAM DICKINSON
IPC: B21D1/02
Filed: 1962-08-01
Abstract: 948,563. Straightening. VOSS ENGINEERING CO. Aug. 1, 1962, No. 29501/62. Heading B3E. A roller leveller has a plurality of leveller  rolls 6, 7 and a plurality of back-up rolls 5  mounted at spaced intervals axially of said leveller rolls 6, 7, a plurality of supplementary half bearings 8, 9 bridging said leveller rolls 6, 7 and being normally out of contact therewith, said supplementary half bearings having slotted ends, bolts 12, 13 for mounting said half bearings 8, 9 on a machine frame and spacing collars 16, 17 for said bolts 12, 13 for sliding movement in the slots of said bearings 8, 9 said bolts 12, 13 engaging said collars 16, 17 to securely fasten said collars to said frame and to space the heads of the bolts out of contact with the half bearings 8, 9 to render the bearings slidable within the limit of the longitudinal axes of the slots. U.S.A. Specification 2,295,017 is referred to.
Patent GB-1061820-A (GB)
Title: Improvements in fiber optical-image transfer devices and methods of making same
Inventor: SIEGMUND WALTER PAUL
IPC: G02B6/06
Filed: 1963-11-08
Abstract: 1,061,820. Glass fibre structures. AMERICAN OPTICAL CO. Nov. 8, 1963, No. 29577/66. Divided out of 1,061,819. Heading C1M. [Also in Divisions G2 and H1] The subject matter of this Specification is identical with that of Figs. 1-9 of Specification 1,061,181 but the claims differ.
Patent GB-709376-A (GB)
Title: Improvements in or relating to antibiotic pharmaceutical compositions
IPC: C07H23/00
Filed: 1951-12-18
Abstract: A mixture of the antibiotic oxytetracycline (also known as terramycin) and Vitamin B12 suitable for use in pharmaceutical compositions (see Group VI), is obtained by purifying a fermentation broth of Streptomyces rimosus by (a) solvent extraction or (b) adsorption.  A water-immiscible alcohol, e.g. butanol, pentanol, benzyl alcohol, cresols, or mixtures thereof, is used in (a) at a pH of 2 or less.  The active substances are recovered by removing the solvent, or by re-extracting with water and an organic solvent, e.g. pentane, which is a nonsolvent for the active substances.  For (b) the active substances are absorbed on carbon at a slightly acid pH, and eluted therefrom by dilute acid, or a mixture of dilute acid and a water-immiscible organic solvent.  Specification 709,347, [Group I], is referred to.ALSO:A pharmaceutical composition for use in vitamin therapy and as dietary supplements comprises a member of the vitamin B12 complex e.g. vitamin B12, vitamin B12a and vitamin B12b, and the antibiotic oxytetracycline, also known as terramycin, as such or in the form of a metal or acid salt, especially terramycin p hydrochloride.  The compositions are administered orally as elizirs, aqueous solutions of a suitable pH, tablets, capsules and powders. 0.2 mg to 20 mg of terramycin hydrochloride for each microgram of vitamin B12 is suitable for administration in anemia. Fermentation broths containing both terramycin and vitamin B12, e.g. by culturing S rimosus, may be purified by absorption or extraction (see Group IV(b)), to produce a product which is used in the above pharmaceutical compositions as such, or with the further addition of one or other of the active components to produce a composition of the desired content.  Specification 709,347, [Group I], is referred to.
Patent GB-1074928-A (GB)
Title: Crucible burner and method of burning fluent fuels therein
IPC: F23D3/00
Filed: 1965-07-13
Abstract: 1,074,928. Wick burners. AUSTRIA VEREINIGTE EMAILLIERWERKE, LAMPEN - UND METALLWARENFABRIKEN A.G. July 13, 1965 [July 13, 1964; Feb. 8, 1965], No. 29726/65. Heading F4T. A liquid fuel burner comprises an annular crucible (1) of V cross-section fed with fuel through a pipe (2), the level of fuel being determined by either a vertically adjustable overflow pipe (5) or by an overflow pipe having closable openings at different levels or by a plurality of fixed overflow pipes with lips at different levels, only one pipe being operative at any one time. The burner may have a fixed or vertically adjustable wick having a stepped outline.
Patent GB-1435385-A (GB)
Title: Sulphonyl-ureas and process for their preparation
IPC: A61K31/64
Filed: 1973-06-22
Abstract: 1435385 Sulphonyl-ureas HOECHST AG 22 June 1973 [22 June 1972] 29737/73 Heading C2C [Also in Division A5] Novel therapeutic compounds (I) (including salts thereof) wherein X represents a hydrogen, chlorine or bromine atom, or a methoxy or methyl group, Y is the group -CH(CH 3 )-CH 2 -, -CH 2 - CH(CH 3 )- or -CH 2 -CH 2 -, Z represents a hydrogen atom or, together with Y and the phenylene radical, the radical (IIa) R 1  represents a hydrogen atom or a C 1-4  alkyl, acyl or phenyl group, R 2  is a hydrogen atom or a C 1-4  alkyl group, R 3  is an alkyl group having from 3 to 6 carbon atoms, a cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, cycloalkenyl or alkylcycloalkenyl group, each having from 5 to 9 carbon atoms, a cyclohexenylmethyl, chlorocyclohexyl, bicycloheptenylmethyl, bicycloheptylmethyl, bicycloheptenyl, bicycloheptyl, nortricyclyl, adamantyl, benzyl or phenylethyl group, are made by standard methods. N - [4 - (# - 2 - nitrobenzamidoethyl)- benzenesulphonyl] - N<SP>1</SP> - cyclohexyl - urea, 4 - (# - # 2- acetamido - 5 - chloro - benzamido # - ethyl) - benzenesulphonamide, 4 - (# - # 2 - mono - and dimethylamino - benzamido # - ethyl) - benzenesulphonamides, N - [4 - (# - ( 2 - dimethylamino - benzamido# - ethyl) - benzenesulphonyl] - N<SP>1</SP> - cyclohexyl - isourea methyl ether and 4 - (# - # 2 - -dimethylaminobenzamido # - ethyl) - benzenesulphonyl-carbamic acid methyl ester are also prepared.
Patent GB-741224-A (GB)
Title: Improvements relating to pused fabric assemblies
Inventor: BIHALY LAJOS
IPC: D06M17/06
Filed: 1951-12-19
Abstract: An interlining fabric for use in a fused fabric assembly consisting of non-thermoplastic threads which by themselves form a coherent fabric and interwoven therewith threads which consist wholly or in part of a thermoplastic material which is solid at atmospheric temperature but which melts or softens sufficiently to become adhesive at a temperature to which the other constituents of the fabric can be subjected without damage is coated with a material which provides a stiffening of the fabric effective in the unfused fabric and is not destroyed by the fusing operation or by subsequent laundering of the fused fabric assembly.  The non-thermoplastic threads may be of cotton, linen or wool and the thermoplastic material of which the other threads may be composed may be polythene. The stiffening may be effected by coating the fabric with a solution of cellulose acetate or an aqueous dispersion of methyl methacrylate. According to the Provisional Specification, the non-thermoplastic constituents of the fabric may be viscose rayon or cellulose acetate. Specifications 719,614, 732,107 [both in Group VIII], and 740,887, [Group IX], are referred to.
Patent GB-784367-A (GB)
Title: Improvements in or relating to an apparatus for comparing the current/voltage characteristics of two non-linear resistances
IPC: G01R1/30
Filed: 1955-10-18
Abstract: 784,367. Non-linear resistance testing. TELEFONAKTIEBOLAGET L. M. ERICSSON. Oct. 18, 1955 [Oct. 18, 1954], No. 29754/55. Class 37. Apparatus for comparing the current/voltage characteristics of two non-linear resistances, wherein a single - phase alternating - voltage source supplies current to a first standard and a second comparison non-linear resistance which are connected in similar polarities in series with the two halves of the primary of a differential transformer whose output current representing the unbalance current between the resistance is displayed on a cathode-ray oscillograph against the applied voltage. In Fig. 1 a standard diode DN and a test diode DX are connected in similar polarity to the opposed ends of the primary of a differential transformer T. The centre point is earthed, and an A.C. generator V is connected thereto and through a current-limiting impedance Z to the remaining poles of the diodes. The transformer secondary output energizes the Y plates of a cathode-ray oscilloscope whose X plates are energized from the output of A.C. generator V to display the unbalance current existing between the diodes as a function of applied voltage (Figs. 2, 3, not shown).
Patent GB-445870-A (GB)
Title: Improvements in or relating to photographic developing apparatus
IPC: G03D13/06
Filed: 1934-10-17
Abstract: 445,870. Photographic developing - apparatus. BILLING, N. P., 6, Lower Regent Street, London. Oct. 17, 1934, No. 29757. [Class 98 (ii)] Photographic developing-apparatus comprises a tank, means to receive in the tank a roll of light-sensitive material to be developed, and a cylindrical roller or cage having means to engage a bead or tab at or near the free outer end of the roll whereby the latter may be drawn on to the roller or cage by rotation thereof, the roller or cage being carried on a central hollow spindle, which constitutes a light-trapped filling aperture, and affording one or more surfaces separate from the outer surface of the spindle and spaced radially therefrom to support a single layer of light-sensitive material. As shown, the apparatus comprises a tank 10 having a cover 11 and main and side cavities 13, 14. In the main cavity 13 is a spider comprising end portions 15, 16 connected by arms 17. The end of the central boss 18 projecting through the lid 11 carries a clamping ring 20 knurled to facilitate rotation. The reduced end 22 fits in a sump 23 closed by a plug 24. Liquid is introduced through the passage 26 in the boss 18. The film spool or cartridge is placed in the recess 14, and a bead on the film end is inserted in a channel 27 in one of the spider arms. In a modification, the spider is replaced by coaxial cylindrical shells, the innermost guided on a central tube, and provided with a channel for the attachment of the end of the film. The other shells are provided with a slot and a channel, and inwardly and outwardly extending stops at the bottom. In a further modification, the walls of the channels form inwardly projecting ribs replacing the inwardly projecting stops. In a further modification for the treatment of kinematographic apparatus, the film is helically wound round one shell by relative displacement of the film spool and shell, and then wound back along the next shell.
Patent GB-848168-A (GB)
Title: Improvements relating to poultry-plucking apparatus
Inventor: COPE CECIL JOHN
IPC: A22C21/02
Filed: 1958-09-17
Abstract: 848,168. Plucking poultry. Cope Whelon & CO. Ltd. June 12, 1959 [Sept. 17, 1958], No. 29806/58, Class 28(2). The flailing fingers 1 of a plucking machine are prevented from too acute bending and breaking off by curved supports 7, Fig. 3 or rods 9 Fig. 4 or rounded lips 12 Fig. 5 on the drum 2.
Patent GB-918573-A (GB)
Title: Improvements in and relating to the production of precast concrete overhead transmission poles, lamp standards and like products
Inventor: WILLIAMSON FRANK LEONARD
IPC: B28B23/06
Filed: 1961-08-18
Abstract: 918,573. Moulding precast prestressed concrete articles. STANTON & STAVELEY Ltd. Aug. 18, 1961, No. 29855/61. Class 87(2). Prestressed articles such as lamp standards are made in a tubular mould d furnished with a single slit e, Fig. 2 (not shown) from end to end, by a method in which reinforcing wires r passing through the mould are pretensioned, concrete is cast in the mould and, after setting, the pretensioning forces are transferred to the ends of the article to compress it longitudinally and tend to release the article from the mould. An assembly of wires r, held by anchor plates j, k and passing through distributer plates m, n attached to a mandrel a, is placed in the mould d and the plates m, k are fixed to a flange f and a plate o respectively. The mandrel a is removed, the nuts s on studs p are adjusted to tension the wires r, and the concrete poured in and allowed to set. The nuts s are then slackened to transfer the forces to the article, This causes, both a longitudinal contraction of the article which tends to free it from the mould, and a slight lateral expansion which is accommodated by opening of the longitudinal slit. The article is then removed from the mould by jacks.
Patent GB-1139104-A (GB)
Title: Large fast nuclear reactor
IPC: G21C1/02
Filed: 1966-07-04
Abstract: 1,139,104. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. 4 July, 1966 [6 Jan., 1966], No. 29870/66. Heading G6C. In a sodium-cooled, fast breeder reactor having a core size of at least 800 litres, the core includes a thorium central zone which induces a negative, or low positive, coolant void coefficient. The central zone 10 comprises uranium-233, thorium-232, surrounded by zone 11 formed of uraniun-238 and plutonium. Blankets 12, 13 and 14 contain depleted uranium. The solid fuel material may comprise metals, oxides and carbides as well as nitrides, sulphides and mixtures of ceramics and metals.
Patent GB-370428-A (GB)
Title: Improvements in or relating to manifolding machines
IPC: B41J11/06
Filed: 1930-10-06
Abstract: 370,428. Feeding webs. STERN, M. C., 212, North Main Street, and PFEIFFER, W. C., 1045, Dodgson Court, both in Dayton, Ohio, U.S.A. Oct. 6, 1930, No. 29917. [Class 100 (i).] In a manifolding machine in which record sheets in the form of a number of superposed webs having spaced perforations are fed over a platen, the web-feeding means is operated by an electric motor which is automatically stopped when the webs are fed the length of a record sheet, the leading ends of the webs being held stationary during the feeding movement. The feeding mechanism is carried by a frame 18, Fig. 1, attached to a frame 15, the upper end of which carries a platen over which is movable a typewriter 12. At the front end of the platen is arranged a bar against which the issuing sheets may be torn from the webs and which normally clamps the leading ends of the webs to the platen but may be raised on depression of a pedal 27. The webs 90 .. 96, Figs. 1, 3 and 4, pass from a roll 16 round a guide roller 97 and thence pass separately round a series of guide rollers 100 on to a pair of spaced endless conveyer bands 48 provided with feeding lugs 55 which engage in succession with the p rforations in the separated webs and bring them into exact registration longitudinally. The bands 48 pass round rollers 47, 49 and the shaft 46 of the roller 47 is driven through change-speed gearing from an electric motor 37, Fig. 1, which is provided with any suitable means for stopping it automatically after a predetermined rotation of the shaft driven thereby. The motor is started by the actuation of a switch arm 61 by a push rod 60. The length of webs fed forms a loop 106 between the frames 18, 15. The webs are unwound from the roll 16 by a pair of feed rollers 73, 74 engaging the web 90 and driven by gearing 70, 71, 72, 75 from the shaft 46. The rollers 73, 74 are pressed together by a spring 78 and may be separated to facilitate threading of the web by turning a shaft 85 carrying a cam 86 engaging in a slot in a member 76 carrying the roller 74. A brake roller 18a rests upon the roll 16 which is mounted in supports 20 having inclined edges over which the roll can be rolled into the open bearings 22. Specification 370,429 is referred to.