baber/WOPTO huggingface dataset:
Patent GB-344786-A (GB)
Title: Improvements in and relating to the separation of gases
IPC: B01D53/52
Filed: 1929-12-04
Abstract: <PICT:0344786/III/1> Sulphur dioxide and carbon dioxide are separated from gases, e.g. stack gases, gases from roasting furnaces, or natural gas, by means of an absorbing agent comprising ammonia substitution products such as diethylamine or ethylamine or an ammonia substitution product of an alcohol such as triethanolamine. The salt formed is decomposed by heat to regenerate the absorbing agent and liberate the gas.  Triethanolamine in water solution is continuously supplied through a pipe 11 to an absorbing tower 10, gas being introduced through a pipe 12 and the stripped gas taken off through a pipe 13.  The absorbent is desirably heated as by steam in a heater 22 before passing down a regenerator 15 having a steam coil 18 at the bottom.  The regenerated agent is passed through a cooler 23 before returning to the absorber.  Some agents other than triethanolamine may require superheated steam and brine as heating and cooling media.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of mixtures of absorbing agents which comprise phenylhydrazine, dihydroxypropylamine, nicotine, hydrazine hydrate and diethylaminoethylalcohol, piperidylethanol. This subject-matter does not appear in the Specification as accepted.
Patent GB-365738-A (GB)
Title: Slides for metal-cutting or other machine tools
IPC: B23Q1/26
Filed: 1930-12-10
Abstract: 365,738. Machine slides and slideways. HERBERT, SIR A., Dunley Manor, near Whitchurch, Hampshire, and MILBURN, J., Canley Corner, Kenilworth Road, Coventry. Dec. 10, 1930, No. 37241. [Class 83 (iii).] A slide for metal cutting and the like machine tools suitable for horizontal or vertical use is arranged to withstand forces tending to separate it from its guide. A horizontal slide 2 resting on the oppositely inclined bevel surfaces 5 of a base 6 has inwardly extending gibs 9 engaging the surfaces 4 of rectangular grooves 3 formed in the walls of the slide, thus preventing separation without any wedge action being set up. One of the inclined supporting surfaces 8 may be made adjustable to allow for wear.
Patent GB-523122-A (GB)
Title: Chewing gum
IPC: A23G4/00
Filed: 1938-12-23
Abstract: 523,122. Chewing-gum. PETER PAUL, Inc. Dec. 23, 1938, No. 37466. Convention date, Dec. 24, 1937. [Classes 28 (i) and 81 (i)] Activated carbon is added to chewing-gum to absorb the flavouring materials and yield them up during the chewing in such manner as to prolong flavour-retention, and to sweeten the mouth by removing odorous and toxic substances. The amount of carbon used is from 2 per cent. to 4 per cent. by weight of the finished gum, and is preferably about 3 per cent. Proportions of materials are 20 pounds of gum base, 20 pounds of glucose, 60 pounds of sugar, 3“ pounds of activated carbon and 16 ounces of flavouring material, the ingredients being. compounded and mixed in the manner usual in the art. The activated carbon used is preferably that made from waste soda liquor obtained in the manufacture of wood pulp, and it is ground to 100 mesh or finer. U.S.A. Specifications 1,052,872, 1,416,242, and 1,741,589 are referred to.
Patent GB-1318053-A (GB)
Title: Process for the production of pure benzthiazyl-sulpheamides
IPC: C07D277/80
Filed: 1970-08-04
Abstract: 1318053 Benzthiazylsulphenamides BAYER AG 4 Aug 1970 [8 Aug 1969] 37516/70 Heading C2C Substantially pure benzthiazyl-sulphenamide is obtained by treating a commercial grade benzthiazyl-sulphenamide, produced by oxidative condensation of 2-mercaptobenzthiazole with an amine, with a 10-50% (vol.) aqueous cyclohexylamine solution to extract impurities and recovering purified sulphenamide from the solution. Examples are given of the purification of N-cyclohexyl-S-benzthiazyl sulphenamide and N-t-butyl-S-benzthiazylyl sulphenamide. It is stated that the process is also applicable to sulphenamides obtained from 2-mercaptobenzthiazole and ethylamine, diethylamine, dimethylamine, piperidine and methylbutylamine.
Patent GB-868107-A (GB)
Title: Cross-linked polymers and copolymers of unsaturated ª- diketones
IPC: C08F16/36
Filed: 1957-10-16
Abstract: An ion-exchange resin selective to ferric ions comprises a copolymer of an unsaturated b -diketone having a selective complexing affinity for ferric ions in an aqueous solution with a cross-linking agent having two polymerizable double bonds, the b -diketone having the general formula: CH2=CR-(CH2)n-CO-CH2-CO-CH3 in which R is an alkyl group having not more than 4 carbon atoms and n=0 or 1.  The b -diketone may be methacrylyl acetone and the cross-linking agent may be ethylene glycol dimethacrylate, divinyl benzene or divinyl ketone. The copolymer may also be derived from a monomer having one double bond, such as methacrylic acid.  Polymerization may be effected in bulk or in aqueous suspension in the presence of a catalyst such as benzoyl peroxide or azo-bis-iso-butyronitrile.
Patent GB-376377-A (GB)
Abstract: 376,377. Gas lighters. JOHNS, T. M. M., 2, Walpole Terrace, and PHILPOTT, G. W. B., 32, Lancaster Road, both in Brighton. May 15, 1931, No. 10696. [Class 75 (iii).] A portable electric gas lighter comprises electrodes 7, 8 in circuit with a dry cell battery 1 and an induction coil 3, the electrode 8 consisting of an enlarged head on a sliding spring-pressed trigger 9 by means of which it can be brought into momentary contact with the spring electrode 7 to produce sparking. The spring electrode 7 may be mounted on a pin in a stirrup connected to the lead 11.
Patent GB-819116-A (GB)
Title: Artificial tubing
Inventor: NOVAK LEO J
IPC: A22C13/00
Filed: 1957-12-03
Abstract: A casing, particularly for sausage meat, comprises at least 50 per cent of a water-dispersible or water-soluble dextran having a molecular weight between 20,000 and that of native, unhydrolysed dextran.  The dextran is preferably obtained from sucrose by biosynthesis, using strains of the micro-organism Leuconostoc. The casing may be formed from a dextran derivative, e.g. a nitrate, which may be prepared by reacting dextran in solid particulate condition or dissolved or dispersed in water with concentrated or fuming nitric acid or with a mixture of nitric acid and nitrogen peroxide.  Other suitable dextran derivatives are the formate, acetate, butyrate, xanthate, ether xanthate, thiourethane xantho fatty acid, ether, or glycollic acid ether or salt.  The dextran derivative is subsequently treated to reconstitute the dextran.  Up to 50 per cent of a compatible film-forming material may be incorporated in the solution of dextran or dextran derivative from which the casing is made, e.g. cellulose nitrate, water-soluble hydrolysed polyvinyl acetate or water-soluble carboxymethyl cellulose.  The casing may be produced by extrusion of a solution comprising dextran or a dextran derivative through an annular nozzle into a coagulating medium, from which the casing is withdrawn and, if necessary, treated to reconstitute the dextran.  Plasticizers which may be incorporated in the extrusion solution include glycerol, ethylene glycol, propylene glycol and polyethylene glycol.  Dextran nitrate solutions may be formed into tubing by dry or wet extrusion methods.  Thus, when the dextran nitrate is soluble in water, viscous solutions may be extruded either into a hot inert gaseous atmosphere to evaporate the water or into diethyl ether, and when the dextran nitrate is insoluble in water it may be dissolved in isopropanol or a solvent mixture, e.g. ethyl alcohol and diethyl ether, and spun into water.  Reconstitution of dextran in tubing comprising dextran esters may be effected by treatment with an alcoholic or aqueous solution of sodium hydrosulphide, with alcoholic sodium hydroxide or with a suspension of a hypophosphite or a dithionate, e.g. sodium hypophosphite or sodium dithionate, in alcohol.  The tubing may be stretched laterally and longitudinally either in the coagulating bath or subsequently. Lateral stretching may be effected by maintaining a pressure differential, e.g. by the use of a vacuum outside the tubing and/or fluid pressure within.  Examples are given.
Patent GB-1527762-A (GB)
Title: Power and modulation control in an amplitude modulator system
IPC: H04H20/00
Filed: 1975-09-15
Abstract: 1527762 Amplitude modulators WESTING- HOUSE ELECTRIC CORP 15 Sept 1975 [30 Sept 1974] 37809/75 Heading H3R An RF amplitude modulator amplifier arrangement in which control and maintenance of the power output is obtained under varying line voltage conditions without varying modulation percentage comprises a comparator 18 responsive to a modulating signal at 22 and a variable amplitude reference signal at 20 to provide a pulse width modulated output signal whose duty ratio is dependent on the amplitude of the reference signal at 20, a variable biasing circuit 48 for determining the initial gross power output of 16, a control circuit 60-90 generating a control signal in dependence upon feed-back power output of 16 for varying the amplitude of the reference signal and a filter 32 responsive to the pulse width modulated output to provide to 16 a D.C. component of a predetermined level determining the average power output of 16 and an A.C. component i.e. the modulation signal. The pulse width modulated signal turns a switch 30 on and off periodically and signal components at the audio modulating signal alone are passed by the filter. The power output of 16 may be adjusted to a desired value by a remote or local control 80 also influencing the amplitude of the reference signal. A slow start control 90 enables output power to be gradually built up each time the carrier is turned on.
Patent GB-1059998-A (GB)
Title: Novel polymers and preparation thereof
IPC: C08G59/32
Filed: 1963-09-20
Abstract: Copolymers having ether linkages in their backbones are made by copolymerizing (a) at least one saturated mono-epoxy compound and/or at least one mono-olefinic mono-epoxy compound, with (b) at least one acrylic monomer of the formula RCH=CR1COOR11, in which R and R1 are the same or different and represent H or a C1-C4 alkyl group, and R11\h represents a C1-C8 aliphatic group.  Copolymerizatio is effected by means of a catalyst system comprising an organo-metallic compound of a Group II or III metal and, optionally, a cocatalyst such as water, an alcohol or alumina.  Copolymers derived from monoolefinic or halogenated epoxy compounds are vulcanizable in sulphur-containing and zinc oxide/amine systems to produce elastomeric materials. Copolymerization may be carried out in bulk or in solution in solvents such as benzene, chlorinated hydrocarbons and aliphatic hydrocarbons.  The examples describe the use of aluminium triethyl, aluminium tri-isobutyl, aluminium diethyl chloride, zinc diethyl and zinc di-isobutyl, and mixtures thereof with each other and with water, ethanol, allyl alcohol, polyvinyl alcohol and alumina as co-catalysts, to copolymerize (a) ethyl acrylate and ethylene oxide, (b) ethyl acrylate and propylene oxide, (c) ethyl acrylate and allyl glycidyl ether, (d) ethyl acrylate and epichlorohydrin, (e) ethyl acrylate, ethylene oxide and allyl glycidyl ether, (f) ethyl acrylate, allyl glycidyl ether, ethylene oxide and epichlorohydrin, (g) n-butyl acrylate and ethylene oxide, (h) allyl methacrylate and ethylene oxide and (i) ethyl acrylate, allyl glycidyl ether and epichlorohydrin.  Copolymers derived from allyl glycidyl ether and epichlorohydrin are cured in recipes containing sulphur and sulphur-containing accelerators or zinc oxide and triethylene tetramine.
Patent GB-915801-A (GB)
Title: Improvements in or relating to call tracing arrangements in automatic telephone systems
Inventor: DENBY JAMES FREDERICK
IPC: H04M3/08
Filed: 1958-11-27
Abstract: 915,801. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Oct. 22, 1959 [Nov. 27, 1958], No. 38306/58. Class 40 (4). In a cross-bar system each bridge magnet has associated therewith an individual coldcathode gas-discharge tube, and means are provided which, subsequent to the operation of the bridge magnets to establish a connection, enable the striking of the tubes associated with those bridge magnets. The invention is described as applied to the exchange' described in Specification 779,237, wherein a connection is established by way of a line finder/ final selector stage LF/FS to an originating trunk relay set ATRS and thence via first and second group selector stages, 1GS and 2GS, a terminating trunk relay set BTRS, a third group selector stage 3GS, and the line finder final selector stage LF/FS. On an established connection, contacts (denoted by " X ") in the operated switch cross-points connect the relevant bridge magnets OPBM, OSBM, BM(1GS), BM(2GS), BM(3GS), TSBM and TPBM to the holding wire H, to which earth is connected by the operated relay contacts hr and the test jack TJ2 in the originating trunk relay set ATRS to maintain these magnets operated. Each bridge magnet has an individual tube connected in parallel therewith, these tubes, such as T1 to T7, being such as not to strike in response to the holding earth on wire H. When it is required to trace a call through the exchange, a link is inserted in test jack TJ1 and the link in test jack TJ2 is then removed. The bridge magnets are thus held by earth extended over the back contact of relay CT in the common call tracing equipment CTE and cannot be released by the subscribers clearing. Operation of the key KST then extends interrupted earth supply (0.75 secs. on - 0.75 secs. off) to relay CT, which responds by operating and releasing repetitively. During each operated period of CT a potential of + 50 volts is applied to the wire H to fire the tubes T1 to T7 which accordingly flash at the frequency of the interrupted earth supply. If desired, the tubes may be fired continuously by connecting the +50 volts potential directly to the lead from test jack TJ1.
Patent GB-1468732-A (GB)
Title: Material hardness testing devices
IPC: G01N3/44
Filed: 1974-09-03
Abstract: 1468732 Hardness tester A M KUCHERSKY O V NIKITIN A P PYATAKOV E I GOLOSKOV and M I KURILOVA 3 Sept 1974 38351/74 Heading G1S A hardness tester comprises three indentors and means for mechanically averaging their displacements. In Fig. 1, the indentors support a three armed plate 2 at their upper ends by means of universal joints Fig. 4, (not shown), and the stem of a dial gauge engages the centre of the plate. In use, carriage 7 is lowered so that clamp 13 presses the specimen 12 against base 10, and the indentors 1 rest on the specimen under their own weight, the weight of plate 2, and the action of the dial gauge spring. The gauge is zeroed, and carriage 7 is further lowered so that a respective cylindrical weight 6 is deposited on the shoulder of each indentor 1. In the modified form of Figs. 5 and 6, each indentor is provided with an arm 16, from which a respective weight 23 may be hung. In use, a specimen 19 is raised by means of a platform 21 so that it becomes pressed against the platform by feet 22 and contacted by the indentors and the gauge is zeroed. Support platform 25 is then lowered so that weights 23 are suspended from the arms 16.
Patent GB-1355095-A (GB)
Title: Production of high purity molybdenum using silver coated carbon as adsorbent
IPC: G21G4/08
Filed: 1971-08-16
Abstract: 1355095 Separating radio-isotopes UNION CARBIDE CORP 16 Aug 1971 [17 Aug 1970] 38397/71 Heading G6R Molybdenum is recovered from an acidic liquid having a pH below 5 by contacting the liquid with an adsorbent comprising activated carbon coated with silver. The adsorbent may be a mixture of coated and uncoated carbon. The process may be used for the separation from an aqueous solution of irradiated uranium of Mo 99 for use in a generator supplying Tc 99 m. The acid present in the solution may be H 2 SO 4 , a mixture of H 2 SO 4  and H 2 SO 3 , HCl, HNO 3 , acetic acid or oxalic acid. Molybdenum is eluted from the adsorbent with an alkaline solution, e.g. a solution of NaOH KOH, NH 4 OH, Na 2 CO 3 , or morpholine. To obtain Mo 99 of medical purity, the eluate may be acidified and readsorbed or may be passed through a column of alumina or zirconia.
Patent GB-1393357-A (GB)
Title: Electroluminescent displays
IPC: G06F15/02
Filed: 1973-08-14
Abstract: 1393357 Pocket calculators; alphanumeric displays BOWMAR INSTRUMENT CORP 14 Aug 1973 [25 Sept 1972] 38442/73 Headings G4A and G5C [Also in Division H1] An electroluminescent display unit 20 in a pocket calculator is mounted on printed circuit board 14 at a desired angle and elevation for viewing by bending over ends 58 of a row of pins on the board surface so that they lie in a plane at an angle to the plane of the board, and mounting the small printed circuit board 32 supporting the display means on the pins, e.g. by passing the pins through apertures in board 32 and soldering (Fig. 4, not shown). Preferably the pins provide electrical as well as mechanical connection to the display unit.
Patent GB-325928-A (GB)
Title: Improved method of and apparatus for heating liquids using the sun's rays for the purpose
IPC: F24S10/70
Filed: 1928-12-31
Abstract: 325,928. Thomson, J. A. Dec. 61, 1928. Solar heat, utilizing.-A storage tank 2 is connected to a heating element 1 exposed to the sun, in a vertical or inclined position. The heating element consists of two corrugated plates 3, 4 in a glass or like covered box 6 having an air space 14. The plates 3, 4, are kept apart by strips 22, and are deformed at 18, 19 and welded or soldered at 20 to form top and bottom headers. Baffles 5, formed of rods, wires, or strips are inserted between the plates and are spot-welded to one, or both plates to cause circulation of the liquid in a zig-zag path. The pipe connections to the tank 2 are at the bottom and at two-thirds of the height, and the tank and pipes may be heat-insulated. Supply and discharge pipes 11 and 17 are provided.
Patent GB-1220928-A (GB)
Title: Improved gauging device
Inventor: LOVE JOHN
IPC: A63B67/06
Filed: 1967-08-22
Abstract: 1,220,928. Gauging apparatus. J. LOVE. June 19, 1968 [Aug. 22, 1967], No.38628/67. Heading G1M. A device for gauging the closer of two woods to a jack in a game of bowls comprises a sheet of transparent material 1 on which is marked one circle or a plurality of concentric circles 4, 5, 6 and a mark designating the centre of the or each circle. The sheet of transparent material 1 which is of rigid plastics material and provided with a part circular periphery 7 and with a finger grip 2 is located, in use, between the jack and an eye of an observer looking vertically downwards at the jack. The device which may have a frosted peripheral portion is then adjusted until the circle or one of the circles appears to coincide with one of the woods and the centring mark appears to coincide with the jack. It can then be easily judged whether or not the other wood is closer to the jack. The centring mark may be in the form of a circle or crossed diameters 3 and a carrying case (8) may be provided.
Patent GB-1353722-A (GB)
Title: Chemiluminescence reaction chamber
IPC: G01N21/76
Filed: 1972-08-21
Abstract: 1353722 Gas sample cell FORD MOTOR CO Ltd 21 Aug 1972 [15 Sept 1971] 38865/72 Heading G2J A chemi-luminescence reaction is observed in a sample cell having a width greater than its depth, the latter being partly defined by a transparent wall. Sample and reactant ports 26, 28 are disposed in a common plane and a discharge port is also provided in this plane and across the cell. As shown, the port is 24 and is formed by a gap in a diaphragm 18 forming the other wall of the cell. The two inlet ports may be coaxial.
Patent GB-1341953-A (GB)
Title: Motor vehicle heating and ventilation system
IPC: B60H1/00
Filed: 1972-08-21
Abstract: 1341953 Heating and ventilating motor vehicles FORD MOTOR CO Ltd 21 Aug 1972 [28 Sept 1971] 38868/72 Heading F4V A motor vehicle heating and ventilating system comprises a passage 5 between a facia pressing 1 and its covering 2 leading to air outlets 4, a nozzle 3 for directing an airflow on to the windscreen, and a control duct 8 pivotally mounted about a horizontal axis and supplied with heated or ambient air, whereby an air supply to the duct 8 may be directed to the nozzle 3 and/or the passage 5 or may be cut-off. Control ducts 8 for both sides of the vehicle may be located in a common or separate housings 7. Alternatively, each duct 8 may be connected to or formed integrally with a flexible air supply hose. The covering 2 is formed from foamed synthetic material, and the outlets 4 are provided over the length of the covering 2.
Patent GB-960059-A (GB)
Title: Lubricating grease composition
IPC: C10M169/06
Filed: 1962-10-15
Abstract: A lubricating grease composition comprises a lubricating oil, a grease-forming proportion of an oleophilic clay and a minor proportion of an alkaline earth metal (Ca, Mg, Ba) carbonate. The oil may be any mineral oil of lubricating viscosity or a synthetic oil such as diesters (e.g. bis (2-ethyl hexyl) sebacate), aliphatic silicates fluorates and phosphates.  The clay may be a montmorillonite (of Na, K or Li), wyoming bentonite or hectoriate which is modified by an aliphatic amine, amino-amide, imidazoline or quaternary ammonium base or salt.  These modifying agents are extensively exemplified and include amino-amides of polyamino oxy compounds, e.g. the amides of hydroxy poly-propylene polyamines with fatty acids.  The grease composition may further contain (1) an inorganic sulphide (e.g. molybdenum disulphide, an amorphous antimony tri, tetra or pentasulphide or mixtures thereof); and (2) a lead naphthenate.  Further optional additives include aromatic amines (examples given), sodium and potassium nitrite, and terpenephosphous chloride reaction products. Specific methods for preparing the greases are described.
Patent GB-1027707-A (GB)
Title: Heated trolley electrification systems and methods of assembling
IPC: H02G5/04
Filed: 1964-09-25
Abstract: 1,027,707. Electric conductors. INSUL-8- CORPORATION. Sept. 25, 1964 [Oct. 14, 1963 (2)], No. 39119/64. Heading H1A. [Also in Division B7] In a system of bus-bars, each bus-bar 24 is of figure-of-8 crosssection with an electrical resistance heater wire 52 in the lobe 50 to maintain a longitudinal pick-off surface 25 free of ice, for example. An electrical insulating sheath 53 of low heat conductivity forms, with the busb ar 24, air pockets 54.