baber/WOPTO huggingface dataset:
Patent GB-1090776-A (GB)
Title: Improvements in the purification of ethylene
Inventor: DANIELS KEITH FREDERICK
IPC: C07C7/148
Filed: 1963-08-20
Abstract: The acetylene content of crude ethylene is reduced by contact with a catalyst solution comprising an aqueous solution of a mercuric salt whereby acetylene is catalytically hydrated to acetaldehyde.  A preferred catalyst comprises an aqueous solution of sulphuric acid containing mercuric sulphate and ferric sulphate.  The process takes place at 60 DEG -100 DEG  C. at atmospheric pressure to 100 p.s.i.g. The catalyst may be regenerated during or after the process by passing air or oxygen through the catalyst solution.  Batch or continous processes may be used.ALSO:Acetaldehyde is obtained in the purification of ethylene gases containing acetylene by contacting the gas mixture with a catalyst comprising an aqueous solution of a mercuric salt, whereby the acetylene is converted to acetaldehyde. The gas mixture may contain added air or oxygen.  The catalyst is preferably mercuric sulphate and ferric sulphate dissolved in aqueous sulphuric acid. The reaction takes plae at 60-100 DEG  C. and at atmospheric to 100 p.s.i.g.  The purified ethylene may subsequently be catalytically oxidized to produce further acetaldehyde.
Patent GB-329553-A (GB)
Abstract: 329,553. Grindal, M. Oct. 5, 1928, [Convention date]. Moulding and core-making machines have pneumatically or electrically operated hammers which strike a weight q resting on the mould material g in order to Consolidate it. A hammer h may be applied successively or simultaneously to lower and upper plates b, q. The hammers may be adjustable bodily as by a hand lever m or be mounted on the corresponding plate at the correct distance as shown in Fig. 2. As the plate b does not move bodily the lower hammer may rest on the framework a, Fig. 1. In addition or instead of the vertical blows similar means mav be used to give lateral blows. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the impacts act only on the carrier of the mould material. This subject-matter does not appear in the Specification as accepted.
Patent GB-779877-A (GB)
Title: An improved centrifugal device for the treatment of solid, liquid or gaseous substances or mixtures of substances
IPC: B01F11/02
Filed: 1953-11-27
Abstract: <PICT:0779877/III/1> <PICT:0779877/III/2> <PICT:0779877/III/3> <PICT:0779877/III/4> <PICT:0779877/III/5> <PICT:0779877/III/6> In mixing, grinding, emulsifying or dispersing apparatus comprising a stator 8 and a rotor 7 between the co-operating surfaces of which the material to be treated flows from the axis towards the periphery, the rotor has an annular series of grooves 10 which face an annular series of grooves 12 in the stator, and a further annular series of grooves 11 in the stator extended across the outlet ends of the grooves 10, 12.  The grooves 11 may form extensions of the grooves 12.  The grooves may lie in planes passing through the axis or may be inclined at an angle of 15-20 degrees to such planes.  In Fig. 14 a projection 13 on the stator prevents jamming of material at the inlet end of the rotor grooves 10.  In Fig. 2 the grooves are not shown but lie in the area indicated by the reference 16.  The rotor is driven by a coupling 4 and a motor 2.  The material is supplied to a hopper 5 and is finally discharged by a pipe 6.  In modifications the apparatus has a vertical axis, the drive being direct or by means of belts. Specification 779,878 is referred to.
Patent GB-1013076-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/21
Filed: 1964-08-13
Abstract: 1,013,076. Filter elements. COMMERCIAL FILTERS CORPORATION. Aug. 13, 1964 [Jan. 23, 1964], No. 33056/64. Heading BID. A filter element comprises a perforate central tube 1, a resin-impregnated, pleated paper filter 3, and an outer filter 10 comprising napped yarn 11 which is wound to form a honeycomb structure. The winding is such as to form curved, inwardly extending passages, Fig. 2 (not shown), of rhombic cross-section, through filter 10. Yarn 11 is cotton, viscose rayon or cellulose acetate and is napped during winding to provide fibres which extend across the passages formed, Fig. 3 (not shown). The yarn may be # inch diameter and may be wound to more than half the radial thickness of the filter 3. The ends of filter 3 are sealed in caps 5, 6, over which filter 10 is wound. In use fuel oil being cleaned flows radially inwards. An outward flow element would have the pleated paper 3 outside the wound yarn filter 10, since the yarn removes "slime" which would block the paper filter.
Patent GB-506538-A (GB)
Title: Improvements in control cards for record card controlled statistical or accounting machines
IPC: G06K19/02
Filed: 1937-11-30
Abstract: 506,538. Cards for statistical machines. BRITISH TABULATING MACHINE Co., Ltd. Nov. 30, 1937, No. 33089. Convention date, Dec. 1, 1936. [Class 106 (i)] A record-card blank for use in controlling statistical machines comprises a plane sheet of imperforate paper folded in half along its centre line 31, Fig. 7, and the halves being secured face to face by adhesive so that one card edge is formed by the fold and the other edges 32 by the superimposed edges of the sheet. In another construction the sheet is folded along two parallel lines 4, 5, Fig. 2, so that the edges 2, 3 abut along a straight line Fig. 5 (not shown) or along a curved line 7 Fig. 3. In another construction Fig. 6 (not shown) 'a separate core or reinforcing filler of paper is inserted between the bottom part of the sheet and the folded-over portions.
Patent GB-1312691-A (GB)
Title: Cover systems for ships hatches or similar openings
IPC: B63B19/24
Filed: 1970-07-08
Abstract: 1312691 Hatch covers AS KVAERNER BRUG 8 July 1970 [9 July 1969] 33131/70 Heading B7S A hatch cover 4 of the kind provided with wheels 3 running on rails 2 which are located along the sides of the hatch coaming and which have gaps filled with bridging bars 5 movable vertically by a series of synchronized rams 8 to raise and lower the cover, is characterized by the provision of a shaft 11 which is rotated by movement of bars 5 to move dogs 18 to and from locking engagement with the cover as it is lowered and raised. The shaft carrier arms 12 and 16 which, respectively, engage slots 10, 17 in the bars 5 and dogs 18.
Patent GB-198622-A (GB)
Title: Improvements in multiple way or switch valves
IPC: F16K11/20
Filed: 1922-12-05
Abstract: 198,622. Jacob, K. B. Dec. 5, 1922. Manually - actuated multiple-way valves.- A multiple-way or switch valve comprises an axially sliding hollow piston controlling two ports with a lift valve seating on and within the piston and controlling a third port. The valve casing 1 is provided with three ports A, B, C, and with an internal liner 2 having slots 3, 4. A sleeve or hollow piston 6 is closed by a cap 8 having a hollow screwed spindle 9 which is operated by a handwheel 12, so that the ports 7 in the sleeve may coincide with the ports 3 or 4. A lift disc valve 15 seats on the shoulder 16 of the sleeve valve, and is operated by a screwed spindle 13 and hand-wheel 14, so that the disc valve controls the port C. The sleeve valve may be locked in any one of three positions by means of an arm 17 carried by the spindle 9 and sliding in a slot 18. A pin is inserted through a hole 20 in the arm 17 and through corresponding holes in the frame 10. The operation of the valve for use in controlling the flow of oil and water to or from a tank on a ship is described.
Patent GB-461769-A (GB)
Title: Improvements in or relating to multiplex telegraphy
IPC: H04J3/16
Filed: 1935-12-02
Abstract: 461,769. Multiplex telegraphy. WESTERN UNION TELEGRAPH CO. Dec. 2, 1935, No. 33328. Convention date, Dec. 11, 1934. [Class 40 (iii)] In an expanding-channel system, in which one channel of a multiplex distributer is assigned to a varying number of transmitters acting to turn in such a way that idle transmitters miss their turn, each channel is retained by one transmitter until the end of a message, when it is re-allocated. Automatic transmitter. The invention is applied to signal-storing transmitters of the type described in U.S.A. Specification 1,576,167. Signals are set up by an operator upon pins 12 in a cylinder or drum 1. The setting is effected by means of an arm 4 which steps itself round the drum in an anti-clockwise direction by means of a ratchet and pinion 3, so as to set up successive characters on successive rows of pins. The signals so stored are retransmitted by contacts 12<1> under the control of an arm 5 which steps itself round the pin drum by means of a ratchet and pinion actuated by a stepping-magnet 14. When the operator ceases to set up signals, the arm 5 overtakes the arm 4 and opens the autostop contact 15. The contacts 12, operated under the control of successive rows of pins 12, control relays 16 whose contacts a send on the signals through one channel of the main distributer D. At the end of each character a stepping- segment 6 on a local ring of the distributer operates the stepping-magnet 14 so as to set the arm 15 for transmission of the next character. Allocation of channel to transmitters. With the switching-relay 10 in the condition shown, station ST has access to the channel D, but the signal (uppercase J) usually sent at the end of a message operates the relay 10 so as to substitute station ST<1> for station ST. The upper-case shift signal ( + + - + + ) sets the coded contacts b so that the impulse received through segment 6 operates relay A, passing through contacts b and conductor 20, so as to move armature AÀ1 to the right. The immediately following J signal (+ + - + -) sets the coded contacts c so that the next impulse from segment 6 operates relay B, passing through contacts c, conductor 22 and armature AÀ1, and the armature BÀ1 moves to the right. Normally, a circuit is thus established through relay contact C<1>À3 of station ST<1> via conductors 23, 24 and lower coil of switching-relay 10, which acts to connect station ST<1> instead of station ST to the distributer D. If, however, station ST<1> has no message to send, station ST retains the channel D, since at station ST<1> the autostop contacts 15<1> are open and the armatures of relay C<1> are consequently moved to the right on receipt of an impulse from segment 7, the winding C<1>I being no longer opposed by the stronger winding C<1>II. The conductor 23 is therefore cut off at C<1>.3, the switching relay 10 fails to act, and station ST<1> fails to seize the channel D. If neither transmitter has a message to send, the channel remains with the last user until a fresh transmission begins.
Patent GB-1107589-A (GB)
Title: Process and apparatus for cracking hydrocarbons with an electric arc
IPC: C01B3/34
Filed: 1965-08-04
Abstract: In the production of acetylene and ethylene by cracking a hydrocarbon by contact with hydrogen heated in an electric arc the hydrocarbon is introduced in vapour form at at least two axially spaced points into a reaction zone, at least one stream in the same direction as the flow of hydrogen and the velocity of the reactants is increased through at least part of the reaction zone e.g. by reducing the cross-sectional area; in one embodiment, the second hydrocarbon stream is introduced part way through the reaction zone in the same direction, in another embodiment further hydrocarbon is introduced transversely to the direction of flow, i.e. radially or tangentially, after which the velocity is maintained constant.  Hydrogen is heated by supplying 2-7 kwhr. per cubic metre to the arc and is introduced into the reaction zone at a velocity of 40-400 m./sec. Feed hydrocarbon is introduced along the reactor wall at 20-400 m./sec.
Patent GB-1476367-A (GB)
Title: Process for the preparation of polymer compositions
IPC: C08L51/02
Filed: 1974-07-29
Abstract: 1476367 Polyphenylene ether compositions GENERAL ELECTRIC CO 29 July 1974 [22 Aug 1973] 33386/74 Headings C3R and C3P A composition comprising 99 to 1 parts by weight of a vinyl addition polymer and 1 to 99 parts by weight of a polyphenylene ether polymer, is obtained by (i) polymerizing a vinyl monomer in a solvent to obtain a solution of the vinyl polymer, (ii) adding a phenol and a catalyst and reacting the phenol with elemental oxygen to obtain a solution containing the polyphenylene ether polymer as well as the vinyl polymer, and (iii) recovering a composition of the two polymers from the solution, e.g. by precipitation. In examples the solvent is benzene and the vinyl monomers polymerized are styrene, methyl methacrylate, chlorostyrene, acrylonitrile, divinylbenzene and butadiene (some of the solutions already contain polybutadiene and polyisoprene); 2,6-xylenol is added (together with dibutylamine and cupric bromide as catalyst) and polymerized by passing in gaseous oxygen; the polymer compositions are recovered by precipitation in methanol; a moulding composition is obtained by adding to the composition of rubber modified polystyrene and poly(2,6-dimethyl-1,4-phenylene ether) minor amounts of an antioxidant, distearylthiodipropionate, tridecylphosphite and polyethylene.
Patent GB-486855-A (GB)
Title: Hydraulic accumulators
IPC: F15B1/08
Filed: 1936-12-07
Abstract: 486,855. Hydraulic accumulators. CHISHOLM, G. D., and AVERY, C. J'., [Representatives of AVERY, W. L.], and AVERY EQUIPMENT, Ltd. Dec. 7, 1936, No. 33492. [Class 69 (ii)] A compressed gas-loaded accumulator in which the pressure liquid is separated from the compressed gas by a partition formed at least in part by flexible sheet material is provided with a valve for controlling the input of pressure liquid to the accumulator operatively connected with the flexible partition so as to be actuated bv movement thereof. The accumulator comprises a casing 1, Fig. 1, containing a cylindrical bag 3 charged' with air through a conduit 2 ; liquid from a pump passes through duct 11, non-return valve 13 and duct 12 into the storage space 29 surrounding the bag 3, and is delivered as desired to the actuated mechanism by outlet port 17 ; a lever 27 pivoted at 25 carries at one end a pad 28 bearing against the bag 3, the other end having an elongated slot 23 containing a pin 22 on the stem 21 of a valve 14 which controls a byepass from the supply passage 11 ; the lever 27 is acted on by a spring 26. When the bag 3 is initially charged with the valve 14 closes and remains closed until the accumulator is almost Fully charged ; the valve then opens, and remains open until, by withdrawal of liquid, the accumulator is practically discharged. A gauze or mesh lining may be provided in the interior of the accumulator vessel to prevent the bag sticking to the side walls. In a modification, Fig. 2, the partition comprises a piston 35 provided with packing 32, 33, 34 and a modified form of valve actuating mechanism is provided.
Patent GB-660221-A (GB)
Title: Improvements in sealing devices for relatively moving parts
IPC: B01L3/00
Filed: 1949-12-29
Abstract: 660,221. Stuffing-box substitutes. JACKSON, J. Dec. 29, 1949, No. 33496/48. Class 122(v) In a shaft sealing device the shaft 3 fits its housing 1 closely at two cross-sections between which the shaft clearance is enlarged to form a sealing chamber 4 largely, but not completely, filled with mercury 5, the surface material of the shafts 3 and the housing 1 at the closely-fitting crosssections being non-wetable by mercury. The sealing liquid may be amalgam or other liquid metal instead of mercury.
Patent GB-190476-A (GB)
Title: Process for the manufacture of fused quartz by the electrical furnace
IPC: C03B19/00
Filed: 1922-12-08
Abstract: 190,476. Soc. Anon. Quartz et Silice, (Assignees of Barnard, H. 0., and George H.). Dec. 16, 1921, [Convention date]. Fused silica.-A process of manufacturing fused silica which shall be transparent and free from bubbles consists in agglomerating the raw material, reduced to fine powder, with gelatinous silica and then compressing it into moulds of the desired shape at a pressure of about 200 kilogrammes per square centimetre. The moulded mass is next heated to about 150‹ C. to get rid of moisture, and is then fused in an electric furnace. Agglomeration of the raw material is facilitated by first transforming it into crystobalite by heating to about 1500‹ C.
Patent GB-608771-A (GB)
Title: Improvements in or relating to an aqueous non-alcoholic vanillin-containing flavouring composition
IPC: A23L27/00
Filed: 1945-12-12
Abstract: An aqueous solution of vanillin and coumarin containing at least 10g./I of vanillin is made by incorporating a buffer salt, e.g. sodium phosphate, sodium citrate, sodium tartrate, to produce a solution of pH 5-7.  Examples are concerned with making solutions containing disodium hydrogen phosphate, and 10g. of vanillin and 0.1g. of coumarin per litre, of pH values in the range 5.0-7.0 by the addition of citric acid or of caustic soda. Caramel may be added to the solution.
Patent GB-1174355-A (GB)
Title: Improvements in or relating to Automatic Recognition of Ink Characters.
IPC: G06K9/00
Filed: 1967-07-21
Abstract: 1,174,355. Character recognition. COLUMBIA CONTROLS RESEARCH CORP. 21 July, 1967 [28 July, 1966], No. 33611/67. Heading G4R. In a character recognition system, positive and negative pulses in a voltage wave derived from character sensing set bi-stable means in first and second states respectively, one of two trains of further pulses being produced according to the character size, each further pulse storing the current state of the bi-stable means in storage means. A stylized character which will be a carbon impression of oversized ABA font or direct printed normal ABA font is sensed in a single sweep past a magnetic or optical head 23 to produce a series of positive and negative voltage spikes which after amplification, filtering, and limiting are separated by diodes 41 so that the positive pulses set and the negative pulses reset a flip-flop 34. A photo-cell 26 detects the presence or absence of the document at a particular position and enables one of two clock pulse generators 47-49 and 50-52 to respond to a positive spike to produce a clock pulse train which via diode 31 or 53 enters the states of flip-flop 34 at successive times into a shift register 35. The enabled clock pulse generator then produces a pulse via diode 32 or 54 to gate out the register 35 to recognition logic 36. Whether the character is oversized or normal depends on its position on the document so that photo-cell 26 by indicating the document position also indicates the character size and selects the clock pulse generator appropriate for the character size, the two generators giving different frequency pulse trains. Reference is made to Specifications 1,174,356 and 1,174,357.
Patent GB-1074147-A (GB)
Title: Colored electrostatographic toners
IPC: G03G15/01
Filed: 1964-08-18
Abstract: 1,074,147. Electrostatographic toner. RANK XEROX Ltd. Aug. 18, 1964 [Sept. 3, 1963], No. 33627/64. Heading G2H. A transparent electrostatographic toner comprises finely divided particles of a transparent electroscopic resin having a transparent organic pigment (defined below) dispersed therein. Organic pigments are defined as being insoluble in the resins. Specified resins are rosin-modified phenolformaldehyde resins containing 5-45% polyvinylbutyral; styrene- and polystyrene-based resins; copolymers of styrene and methylacrylate esters; and epoxy resins. Specified pigments and their preferred concentrations per 10 parts of resin are 0À92-1À08 parts of 3, 3' dichloro-4, 4'-bis-(alpha-azo-o-acetoacetotoluidide)biphenyl, 0À69-0À81 parts of a magenta 2, 9-dimethylquinacridone, 0À75 parts of the phosphotungstomolybdic acid lake of xanthene, and also a blue copper phthalocyanine pigment used with the yellow biphenyl specified above. The resin and pigment may be rubber-milled together at above the plastic point of the resin, cooled and ground. The powder image may be fixed to the copy sheet by heat or solvent vapour processes. Yellow, magenta, and cyan toners, using the pigments given above may be used in a colour system by superposing layers.
Patent GB-1492920-A (GB)
Title: Manufacture of synthetic transparent fused silica
IPC: C03B37/018
Filed: 1976-08-12
Abstract: The invention relates to the preparation of synthetic quartz glass which is free from OH ions and is prepared by oxidation of a hydrogen-free silicon compound in a hydrogen-free gas stream containing elemental and/or bound oxygen, and deposition of this oxidation product as a glassy material on a heat-resistant substrate. The gas stream is passed through an induction-coupled plasma burner. In order to reduce the refractive index of synthetic quartz glass, a hydrogen-free fluorine compound in vapour form which decomposes at elevated temperature, in particular dichlorodifluoromethane, is passed into the flame of the plasma burner. The plasma burner used has three offset quartz glass tubes arranged concentrically to one another. The fluorine-doped synthetic quartz glass serves as a material for the cladding of optical fibres.
Patent GB-975938-A (GB)
Title: Pharmaceutical antimalarial compositions
IPC: A61K31/505
Filed: 1960-09-30
Abstract: 2,4 - Diamino -5- (p - chlorophenyl) -6-ethyl-pyrimidine monophosphate is produced by treating the base with aqueous phosphoric acid and drying.  It is an antimalarial drug.ALSO:A therapeutic composition for the treatment of malaria comprises a mixture of 45 to 55 parts of 2,4-diamino-5-(p-chlorophenyl)-6-ethyl pyrimidine and 35 to 50 parts at 8-(4-amino-1-methylbutylamino) - 6 - methoxyquinoline, the proportions being in terms of the weight of the bases.  The compounds are preferably in the form of an acid addition salt e.g. hydrochloride, sulphate, oxalate and the phosphate, which is the preferred salt.  The preparation is used orally in the form of tablets, capsules, cachets, powders, granules, a suspension in water, syrup or oil, or an emulsion, and diluting, dispersing and surface active agents may be present.
Patent GB-1046909-A (GB)
Title: Rocket thrust chambers
IPC: F02K9/64
Filed: 1963-08-26
Abstract: 1,046,909. Rocket combustion chambers. G. C. SAINI. Nov. 24, 1964 [Aug. 26, 1963], No. 33761/63. Headings F1J and F1L. A rocket motor having a coolant jacket 32 comprises main and additional combustion chambers 1, 2, respectively, separated by a hollow deflector cone 9. Annular propellant injector elements 8, 8a, 8b, 8c surround cone 9, each element 8 being mounted between casing ribs 7 and comprising a series of thin annular laminae, having radial grooves on one side, welded together and electroplated to form injection orifices 25. In a modification, each element 8 consists of a single piece sintered porous member. Annular galleries 29, 29a are supplied with oxidant, such as nitric acid, through inlets 15, 15a and similar galleries 28, 28a are supplied with fuel, such as aniline, through inlets 14, 14a, the fuel and oxidant issuing through orifices 25 into the main combustion chamber 1. Deflector cone 9 is mounted on a hollow stem 22 and is supplied with fuel through an inner pipe 23, the fuel being guided round the interior of cone 9 to effect cooling before issuing through nozzles 11 into the combustion chamber 2. Oxidiser is injected through nozzles 12 to impinge upon the jets of fuel. The combustion products from chamber 2 flow through an annular gap 34 between cone 9 and injector element 8 to vaporise and effect mixing of the fuel and oxidant injected into the main chamber 1 through orifices 25. The mixture is further dispersed by impingement on a target surface 18.