baber/WOPTO huggingface dataset:
Patent GB-586881-A (GB)
Title: Improved process for the polymerisation and copolymerisation of acrylonitrile
IPC: C08F20/42
Filed: 1944-08-02
Abstract: A solution of a compound of the formula CH2=CR.CN, where R is an alkyl or aryl group and an oxygen yielding catalyst in aqueous medium is subjected to polymerizing conditions.  Nitriles specified are acrylonitrile, alpha methacrylonitrile, alpha ethacrylonitrile. Catalysts specified are alkali metal and ammonium salts of persulphuric and perboric acids, hydrogen peroxide, urea peroxide, diacetyl peroxide and peracetic acid. Other compounds having a >C=C< group may be present; those specified are acrylic, methacrylic and alphachloracrylic acids, methyl, ethyl, butyl, octyl, 2-nitro-2 - methyl - propyl, methoxyethyl, chlorethyl, phenyl, cyclohexyl, dimethyl aminoethyl, methacrylates, acrylates and alpha chloracrylates, acryl and methacryl amides and monoalkyl substitution products thereof, methyl vinyl, phenyl vinyl and methyl isopropenyl ketones, vinylidene and vinyl chlorides, vinyl fluoride, vinyl acetate, chloracetate, propionate, butyrate, benzoate, thiolacetate and stearate, maleic anhydride, fumaric, maleic, citraconic and mesaconic esters, N-alkyl maleimides, N-vinyl-carbazale, N-vinyl succinimide, N-vinyl phthalimide, vinyl ethers, styrene, furylethylene, ethylene and isobutylene.  Oxidisable oxygen-containing sulphur compounds such as sodium bisulphite, sulphur dioxide, sodium hydrosulphite, sodium thiosulphate, diethly sulphite, diethyl sulphoxide, formamidine sulphinic acid and para-toluene sulphinic acid may be present.  The process may be carried out in an inert atmosphere and in the presence of mercaptans, aldehydes, ketones, esters, dioxolanes, hydrazines, polyhalogenated compounds and ethers.  The products may be mixed with plasticizers, fillers, pigments, dyes, natural and synthetic resins, and formed into films which may be stretched, or fibres. Di-methyl formamide is specified as a solvent for polyacrylonitrile.  Specifications 572,995, 573,270 and 583,939 are referred to.
Patent GB-977242-A (GB)
Title: Improvements in or relating to magnetic memory element matrix assemblies
IPC: H04M15/06
Filed: 1963-04-16
Abstract: 977,242. Automatic exchange systems. SIEMENS & HALSKE A.G. April 16, 1963 [April 17, 1962], No. 14770/63. Heading H4K. In a magnetic store for digital information which employs cores having 3 states, plus, minus and zero, the cores are arranged in columns defining digit positions and rows defining digit values, and either the columns share two digit positions or the rows share two digit values, these being distinguished by the plus or minus state of the cores. In Fig. 2a, one column T/E is provided for the thousands and units digits and one H/Z for the hundreds and tens digits. In the case of a repeated digit in one column, e.g. for the number 2392, the loop bypasses the core concerned on the return run, or alternatively, Fig. 2b (not shown), passes through a supplementary core. In Fig. 3 the rows each share a pair of digit values. Magnetic films may be used instead of magnetic cores.
Patent GB-255201-A (GB)
Title: Improvements in telephone receivers and like instruments
IPC: H04R13/02
Filed: 1925-06-08
Abstract: 255,201. British Thomson-Houston Co., Ltd., Butcher, J. H., and Bird, G. H. June 8, 1925. Sheathing or covering, connections of. - An anchoring device for the external leads of a telephone receiver or the like, which is additional to the electrical connections of the leads, comprises a split tube portion 23 adapted to be squeezed on to the leads and secured in the flexhole 15 of the casing by projections 24 and a bent-over lug 26. In the telephone receiver, Fig. 4, the split tube portion 23 is formed integrally with an apertured plate 29 adapted to fit over one or both pole-pieces. Tags 19 secured to the casing by screws or rivets 21 have the ends of the coils 17 and the inner ends 22 of the external leads soldered or otherwise electrically connected thereto.
Patent GB-498799-A (GB)
Title: An improved process for expelling and recovering carbon disulphide vapours and other gases or vapours from liquids, more particularly from spinning and washing waters of the viscose artificial silk and cellulose wool industries
IPC: C01B31/26
Filed: 1938-05-18
Abstract: In a process for expelling and recovering vapours of carbon disulphide and the like from waste liquids produced in the viscose artificial silk and cellulose wool industries, the liquids are treated under a vacuum of 304-76 mm. of mercury absolute whilst at the same time a limited amount of air, not exceeding ten times the volume of the liquid being <PICT:0498799/III/1> <PICT:0498799/III/2> treated, is bubbled therethrough in a state of fine subdivision, and the carbon disulphide &c. sucked off with the air is collected in known manner by chemical binding, absorption or condensation. 1 cubic metre washing water containing 0,6 kg. carbon disulphide is treated in a receiver 1 with air bubbled through a distributer 2, the vapours and gases evolved being sucked off by a vacuum pump 4 operating under a vacuum of 152 mm. of mercury absolute.  A plant for continuous operation is shown in Fig. 2, in which the washing water is sucked continuously through a pipe 4 into a de-gassing vessel 2, the liquid passing over a distributer 5 and trickling through a gravel layer 6. The vapours are removed by air fed through a distributer 12 and the liquid flows off through a pipe 9.  The gases and vapours are sucked off by vacuum pipes 3, 8 and the height of the liquid is maintained constant by a float 11 which regulates a valve in the suction pipe 8.
Patent GB-1506128-A (GB)
Title: Air cleaner
IPC: F02M35/14
Filed: 1976-04-12
Abstract: 1506128 Air intake silencers KAWASAKI HEAVY INDUSTRIES Ltd 12 April 1976 [14 April 1975] 14917/76 Heading F1B [Also in Division B1] An air cleaner having a silencing construction for I.C. engines comprises a housing (not shown) containing a conical cleaner element 2 and a vibration-isolating cover 3. Attached to the top of the cover is an inverted spider 12, with ventilating windows 11, connected to support plate 13 which, with bolt 17, secures the perforated support 16 and top and bottom portions 8 and 9 together. The cover is removably connected to the housing by guide bolt 18.
Patent GB-1208324-A (GB)
Title: Method for reducing the formation of bacteria, algae and fungi
Inventor: JONES PHILIP PENRY
IPC: A01N31/12
Filed: 1968-03-28
Abstract: 1,208,324. Compositions for treating water. BDH CHEMICALS Ltd. 17 March, 1969 [28 March, 1968], No. 14942/68. Heading C1C. [Also in Division A5] A composition which may be used as a bactericide &c. in water comprises a mixture of solid dichlorophene, sodium carbonate and sodium silicate in granular form. The proportions of dichlorophene and sodium carbonate may vary between 10 and 60% and 10 and 50% by weight, respectively. Sodium silicate solution may be used in the preparation of the granules.
Patent GB-243042-A (GB)
Title: A process for softening aluminium plated iron articles
IPC: C21D1/32
Filed: 1924-06-20
Abstract: 243,042. Jordan, F. June 20, 1924. Modifying physical characteristics of metals.- Iron articles plated with aluminium such as plates, bands, wire &c. are softened, to enable them to be rolled to the thinnest sections. by heating them in an airtight container in a muffle furnace to a temperature above the melting point of aluminium, viz., 700-750‹ C. and then cooling very slowly.
Patent GB-860789-A (GB)
Title: Target tracking system
IPC: G01S13/72
Filed: 1957-05-10
Abstract: 860,789. Radio navigation. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. May 10, 1957 [May 11, 1956], No. 14991/57. Drawings to Specification. Class 40 (7). An inspection radar apparatus has an associated digital computer serving to track a number of targets in azimuth and range, and in elevation if desired. All the information supplied to the computer, and all computation performed, is in polar co-ordinate form. The computer provides an iterative prediction of the positional changes of each of the tracked targets during each revolution of the radar apparatus, and includes means for keeping stored data up-to-date by selective acquisition, at each revolution of the radar apparatus, of new data concerning the actual evolutions of the targets. Echoes from the various targets give information of their range and bearing and such information is stored in a data-acquiring section of the computer. Both the azimuth and range scales are represented by counting circuits, the azimuthal counter being actuated in synchronism with the radar aerial and the range counter being actuated from the time of transmission of a radar pulse and returned to zero before the succeeding pulse is transmitted. After several revolutions of the aerial sufficient information will have been gathered to predict the target positions at the next revolution of the aerial. Gating circuits are provided which are open for the incertitude period, i.e. the period during which it has been predicted that a target echo will arrive. If no signal is received during that period, after several scans an alarm is operated to indicate loss of the target. The computer may be set to track new targets by feeding to the dataacquiring section details of the positions of such targets as judged from the radar screen by an operator. The tracks of new targets initially can be predicted only within wide limits so gating circuits of variable duration are employed, the duration being long at first and then reduced as the aircraft track becomes established.
Patent GB-590064-A (GB)
Title: Processing of viscose from refined chemical pulp
IPC: C08B9/00
Filed: 1944-08-08
Abstract: Refined chemical pulp containing not more than 0.15 per cent of ether-extractable matter is converted to viscose, and there is added at a stage prior to completion of the shredding a cation-active amino compound at least dispersible in water, containing nitrogen having up to three valences attached to the carbon atoms and whose free base is stable in solutions of alkali metal hydroxide, said compound being added in the range 0.01 to 0.20 per cent of the weight of the dry pulp.  The compound may be added to the chemical pulp.  Suitable amino compounds are (1) primary, secondary and tertiary alkyl amines such as heptylamine, octylamine, (2-ethyl)hexylamine-1, decylamine, laurylamine, tetradecylamine, hexadecylamine, oleylamine, octadecylamine, methyl laurylamine, dimethyl laurylamine; (2) alkyl alkanolamines such as lauryl aminoethanol, condensation products of laurylamine and glycerol chlorhydrin and dioctylamino ethanol; (3) alkyl ethers of alkanolamines such as the lauryl ether of ethanolamine and the monolauryl ether of triethanolamine in salt form; (4) alkyl cycloalkylamines such as lauryl piperidine and lauryl methyl cyclohexylamine; (5) amido amines such as the monoamides of hydroxyethyl ethylene diamine and oleic, stearic and mixed coconut fatty acids, and polyethylene polyamines partially acylated with a fatty acid of 7 to 18 carbon atoms, a number of which are specified; and (6) imidazolines such as 2-undecyl imidazoline and 2-heptadecyl-N-acetamidoethyl imidazoline.  The cation - active amino compounds improve the filtration properties of the viscose, and due to the substantivity of the compounds towards cellulose they may be added to the cellulose pulp in the stock chest prior to sheet formation.
Patent GB-709218-A (GB)
Title: Improvements in and relating to delivery apparatus used on paper folding machines
Inventor: DANCEY THOMAS LESLIE
IPC: B65H31/26
Filed: 1951-06-26
Abstract: 709,218. Sheet delivery apparatus. UNIFOLD MAILING MACHINES, Ltd. June 24, 1952 [June 26, 1951], No. 15158/51. Class 100 (1) A stacking device for use in conjunction with a paper folding machine 2 including a pair of rotating rollers 5, 6 for the ejection of the folded paper sheets, comprises a delivery table 7 having an edge 8 below the line of ejection of the sheets between the rollers 5, 6 from which it slopes upwards away from the roller to a point 9 higher than the ejection line, from which point the table preferably slopes downwards to a point 10 before assuming a horizontal position 12, and deflectors 13 resting on the table 7 in the proximity of the point 10. The deflectors 13 are adjustable longitudinally of the table 7 by means of rods 18 on which they are pivoted and screws 19, and transversely of the table by means of nuts 17 on posts 15 transversely slidable in the slot on the table 7. The leading edge of a sheet after contacting the table 7 is deflected upwardly to engage the deflectors 13 and after leaving the nip of the rollers 5, 6 comes to rest with its trailing edge overlapping the table 7 and above the level of the ejection line of rollers 5, 6 so that each successive sheet is delivered underneath the previously delivered sheet, thus avoiding interfolding between successive sheets. The deflectors may alternatively consist of latches 22 freely pivoted near the end of the table 7 at 23, Fig. 7.
Patent GB-275377-A (GB)
Title: A process for the catalytic methylation of ammonia and organic amines
IPC: C07C209/18
Filed: 1926-06-17
Abstract: 275,377. Mackert, A. June 17, 1926. Methylamino compounds ; dimethyl ether. - Ammonia and primary and secondary amines are methylated by passing ammonia or the amine mixed with dimethyl ether in excess at reduced, ordinary or increased pressure over dehydrating catalysts such as the oxide of aluminium, titanium, zirconium or thorium. The dimethyl ether may be mixed with methyl alcohol or a partial methylation with methyl alcohol may first take place. The ether may be produced in situ from methyl alcohol and used for partially methylating ammonia or an amine by passing the latter with alcohol over the catalyst, the excess of ether being allowed to act in a second stage to complete the methylation. In examples, (1) a mixture of ammonia, primary, secondary and tertiary amines is obtained by passing ammonia and dimethyl ether over heated aluminium oxide; if the product is treated again with dimethyl ether, the final product contains no ammonia; (2) a mixture of mono- and dimethylaniline is obtained by using aniline instead of ammonia, and if this mixture, with or wthout more aniline, is treated again, dimethylaniline alone is obtained, which may also be obtained in one step by using a greater excess of ether: (3) dimethyl-#-naphthylamine is obtained by passing #-naphthylamine with dimethylether over heated thorium oxide; (4) dimethylaniline is obtained by passing aniline and methyl alcohol over heated aluminium oxide, separating the base thus obtained and passing it with dimethylether over the catalyst.
Patent GB-792889-A (GB)
Title: Improvements in or relating to methods for bending tubes
IPC: B21D9/18
Filed: 1956-05-16
Abstract: 792,889. Angular bending; fillings for tubes. HUET, A. May 16, 1956 [July 7, 1955], No. 15321/56. Class 83 (4). A tube is bent filled with sand or like filling material which is cooled, e.g. by moistening, near that part of the tube which is to form the outside of the bend. A tube a to be bent is filled with sand b and closed at its ends by stoppers c1, c2. The part AB of the tube which is to form the inside of the bend is heated and that part CD which is to form the outside of the bend kept cool by moistening the sand b thereadjacent by means of water from a perforated pipe d inserted in the tube a. The moist sand is separated from the dry sand by a flexible sheet-metal strip e. The tube a is bent in a die h by a reciprocating punch g moved along the tube or by a punch extending the length of the tube and shaped to match the form of the inside bend of the finished elbow.
Patent GB-236202-A (GB)
Title: Improvements in stone dressing tools
IPC: B28D1/18
Filed: 1925-06-16
Abstract: 236,202. Holm, E. T. June 27, 1924, [Convention date]. Tools. - A looselypivoted centrifugally-acting stone-dressing tool is made with a polygonal head 1, the hole therein being so formed that contact between the head and the pivot bolt 3 takes place along one line, for example, by making the radius of curvature at the corners of the hole greater than that of the bolt. The Specification states that, when hanging in the position shown, the head constitutes a compound pendulum, provided that L = I/a.M, where L and a are the lengths indicated, M is the mass of the head, and I is its moment of inertia about the point of suspension. P indicates the centre of gravity of the head. Specification 183,450 is referred to.
Patent GB-137239-A (GB)
Title: Improvements relating to inclinable saws or other tools
IPC: B27B5/36
Filed: 1919-06-20
Abstract: 137,239. Mouche, E. A. June 20, 1919, Addition to 106,593. Securing tools on shafts.-In means of the kind described in the parent Specification for mounting saws, milling-cutters, and other tools on their shafts, additional bolts b are screwed through the flange, a against the crown c carrying the tool d, and are arranged in the plane of the pivots d<1> forming the connexion between the crown c and the sleeve x secured to the shaft. Saws, which may have lateral teeth, are thus better adapted for working on metal. The tools may be secured on their crowns in any position of rotary adjustment by a pin or screw engaging a recess f in the crown and one of a number of recesses e in the tool.
Patent GB-1176991-A (GB)
Title: An Orange Pigment Dye
IPC: C09B5/30
Filed: 1967-04-05
Abstract: 1,176,991. Colouring polymers; coating compositions. BADISCHE ANILIN- & SODAFABRIK A.G. 5 April, 1967 [6 April, 1966; 26 Aug., 1966], No. 15625/67. Headings C3P and C3R. [Also in Division C4] The orange pigment dye having the formula is (a) admixed with P.V.C., di-(2-alkylhexyl) phthalate and Advastab 17M (an organic tin compound) and pressed into a sheet (Example 2); (b) admixed with polystyrene, extruded and moulded (Example 3) and (c) admixed with a clear varnish containing a phthalate resin in xylene, a condensation product of urea, formaldehyde and butanol, and glycol acetate and baked at 120 C. (Example 5).
Patent GB-196838-A (GB)
Title: An improved fastening device for bracelets, bangles and the like
IPC: A44C5/20
Filed: 1922-06-06
Abstract: 196,838. Evans, H. June 6, 1922. Catches, spring.-Relates to fastenings of the type in which a pair of spring-controlled hooks 6 engaging a T-shaped stud 14 are simultaneously freed by pressing totogether their projections 10, and consists in arranging washers 7 on on the pivots 5 and at one side of the hooks, each washer having a flat 7<a> to engage the side of the casing 4.
Patent GB-1097952-A (GB)
Title: Container closure device
IPC: F16J13/00
Filed: 1965-04-13
Abstract: 1,097,952. Gas-tight doors. GESELLSCHAFT FUER KERNFORSCHUNG m.b.H. April 13, 1965 [April 16, 1964], No. 15703/65. Heading F2P. Two containers 1 and 2 have openings which can be brought into a position of correspondence to be connected with each other, the said openings each having a cover consisting of two parts 3 and 4, 11 and 12 compressed together by springs 7, 15 on pins 8, 16 so as to compress sealing rings 6, 14 in peripheral grooves formed between the cover parts, each into gas-tight contact with a wall on its respective container. A device is provided whereby the two cover assemblies may be pressed together when they have been brought to the position of correspondence so that the outer surface of each is protected by the other against contact with any radio-active substances stored in the containers. The device comprises a piston 17 slidable in a cylinder 18 on the cover-part 12 which, when in position, is located in an opening 9 in the cover-part 3. The piston can be raised in the cylinder 18 by operation of a lever 32, connected to the piston by way of a rod 29, a member 25 with a cam groove 26 and a pin 27, so that cams 23 on hooks 20 move into a recess 24 permitting the hooks to pivot outwards so that grooves 19 in them engage with the sides of the recess 9 in the cover-part 3. The cover-part assemblies are thereby locked together and can be withdrawn together because in this position the mutually facing surfaces of the cover-parts 3 and 12 press on the heads of the pins 16 and 8 respectively to compress the springs 15 or 7 to allow the cover-parts of each cover to separate and release its sealing ring 6 or 14 from the wall of its container.
Patent GB-662284-A (GB)
Title: Improvements in or relating to means for feeding powder from hoppers and the like
IPC: A01C15/04
Filed: 1949-06-13
Abstract: 662,284. Powder distributers. WILLIAMS, J. F. June 12, 1950. [June 13, 1949] No. 15710/49. Addition to 641,558. Class 6(i). [Also in Group XXXI The invention of the parent Specification is modified by the provision of a fixed grid 25 mounted below the worm 13 and agitator blades 27 which extend along the interior of the discharge shoot 15. As shown, the worm 13 is removably mounted on the driving shaft 19 and is held in driving engagement by means of ears 26 mounted on the shaft 19 The blades 27 are pivoted on the ears 26 and are provided with spring: 34 to urge the blades outwardly towards the walls of the shoot 15. To vary the rate of feed of material the worm 13 may be interchanged with one having a different diameter or pitch. If the worm is of smaller diameter than the previous one, a loose sleeve 28 is inserted in the vertical outlet 12 and secured by a screw 29.
Patent GB-678330-A (GB)
Title: A device for observing transparent objects
IPC: G02B21/14
Filed: 1950-06-23
Abstract: 678,330. Phase contrast devices. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. June 23, 1950 [June 24, 1949; Feb. 3, 1950], No. 15791/50. Class 97 (i). A phase contrast device for observing transparent objects comprises a transparent hemisphere divided into two parts 1, 2 by a plane parallel to the base of the hemisphere and at a distance therefrom equal to half the radius. The surface of separation of the parts 1, 2 is semi-reflecting and located between the parts and centred on the axis passing through the centre and top of the hemisphere is a phase plate. Part 2 of the hemisphere is coated with reflecting material, except for a portion 5 located at the top thereof. In the form shown, the phase plate Q is annular and, in use, an image is formed thereon of an annular diaphragm D by a condenser E, E<SP>1</SP>. A rotatable polarizer R and a conical half-wave plate C are included in the illuminating unit and the internal diameter and radial thickness of the phase plate Q are such that a ray issuing from a transparent object O and reaching a point half-way between the inner and outer peripheries of the phase plate is incident on the latter substantially at Brewster's angle. An image of the object O is formed at O<SP>1</SP> in phase contrast and, by rotating polarizer R, the contrast can be varied. Another form is described wherein the phase plate comprises a transparent annulus surrounding an opaque area.
Patent GB-123929-A (GB)
Title: Improvements relating to Frictional Driving-gear for Cycle Cars and other Motor Vehicles.
Inventor: WILKINSON HERBERT ERNEST
IPC: F16H15/12
Filed: 1918-09-30
Abstract: 123,929. Wilkinson, H. E. Sept. 30, 1918. Friction wheels.-The rim 17 of a friction wheel used in a variable-speed &c. gear is eovered with segments of leather or fibre 15 secured between rings 13, 20 by bolts 19. A disk of soft wood 18 may be placed under the covering.