baber/WOPTO huggingface dataset:
Patent GB-872758-A (GB)
Title: Improvements in or relating to the preparation of malonic acid salts
Filed: 1957-10-30
Abstract: Malonic acid alkali or alkaline-earth metal salts are prepared by reacting carbon dioxide with an a -metallo metallic acetate wherein the metallic atoms are those of alkali or alkaline earth metals at a temperature above about 140 DEG C. upwards but below the decomposition temperature of the metallo acetate reactant.  The reaction may be effected under raised pressure and the metallo acetate reagent may be used in suspension on a substantially inert organic diluent, various hydrocarbons and acyclic and cyclic ethers being mentioned.  The resulting malonic salt may be acidified suitably in aqueous solution and the liberated malonic acid recovered by solvent extraction.  Alternatively, the metal malonate may be reacted with an esterifying agent such as an alkyl sulphate or alkyl halide; many such compounds being specified as suitable.  The a metallo metallic acetates are prepared by the method described in Specification 872,756.  Examples: (1) a -sodio sodium acetate is slowly added to a reactor heated to 213 DEG C. through which CO2 is passed and the resulting di sodium malonate is acidified to liberate the free acid; dilithium malonate is prepared similarly (2) a -calcio sodium acetate is reacted as in (1) at 200 DEG C., yielding sodium calcium malonate.
Patent GB-1460820-A (GB)
Title: Reinforced plastics laminates
IPC: B29C70/00
Filed: 1974-04-03
Abstract: 1460820 Laminates PENNWALT CORP 3 April 1974 [6 April 1973] 14743/74 Heading B5W [Also in Division F2] A reinforced plastics laminate comprises a first lamina constituting an outer ply of the laminate, the lamina comprising a glass fibre fabric e.g. a woven fabric having bonded to one face thereof a tetrafluoroethylene polymer coating and to the other face a coating of a vinylidene fluoride polymer, the tetrafluoroethylene polymer extending in to the interstices of the fabric to a depth not greater than one half the thickness thereof, the first lamina being bonded in face to face relation with its vinylidene fluoride polymer coated face there towards with a second lamina comprising a flexible porous sheet e.g. of glass fibre fabric whose interstices are impregnated with the same or a different vinylidene fluoride polymer. The laminate may be made by (a) impregnating one surface of a glass fibre fabric with a tetrafluoroethylene polymer applied from a liquid carrier e.g. as an aqueous emulsion and to a depth not exceeding half the thickness of the fabric e.g. by spraying; (b) sintering the coating of tetrafluoroethylene polymer under pressure e.g. by heating in a press; (c) impregnating the other surface of the fabric e.g. by spraying, doctor knife application or by a continuous coating system with a vinylidene fluoride polymer applied from a liquid carrier e.g. as a dispersion; (d) heating the coated fabric to fuse the vinylidene fluoride polymer coating; (e) laying the coated fabric against a porous sheet impregnated with a vinylidene fluoride polymer with the vinylidene fluoride coated surface of the fabric directed theretowards; and (f) pressing the coated fabric and the impregnated sheet together to effect bonding therebetween. A vinylidene fluoride polymer is defined as being a homopolymer of vinylidene fluoride or a copolymer thereof with up to 50 mol. per cent of another monomer e.g. symdichlorodifluoroethylene, 1-chloro-1,2,2-trifluroethylene, tetrafluoroethylene, vinyl fluoride or vinyl chloride. A tetrafluoroethylene polymer is defined as being a homopolymer of tetrafluoroethylene or a copolymer thereof with another monomer e.g. ethylene and/or hexafluoropropylene or a halogenated polyethylene referred to above. The preferred laminate shown comprises an outer layer of polytetraflouroethylene or of an ethylene/tetrafluoroethylene copolymer applied to one face of a layer 12 of glass fibre fabric and penetrating interstices of the fabric, a layer of polyvinylidene fluoride being bonded to the other face of the fabric to form a first composite layer (A), two further composite layers (B) of a glass fibre fabric 12 sandwiched between layers of polyvinylidene fluoride being bonded to the polyvinylidene fluoride layer of composite (A) and the assembly laminated to an optional substrate (C) e.g. of metal.
Patent GB-147954-A (GB)
Abstract: 147,954. Schneider et Cie. Jan. 19, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Sighting-telescopes.-Apparatus to be fitted to sighting-telescopes and like instruments to register upon an auxiliary register mark situated behind the observer consists of a plane mirror D, fixed or retracting, placed at right angles to the horizontal axial plane of the telescope A and inclined to the vertical axial plane thereof. The mirror may be adjustable to allow of sighting marks to the right-rear or left-rear or a mark above the horizontal.
Patent GB-414867-A (GB)
Title: Improvements in or relating to cases for cigarettes, cigars and the like
IPC: A24F15/12
Filed: 1933-05-23
Abstract: 414,867. Cigarette &c. cases. LUDLOW, L. B., and LUDLOW, N. S., 98¢, Lichfield Street, Walsall. May 23, 1933, No. 14836. [Class 18.] Internal frames for cigarette &c., cases consist of a rigid rectangular frame with an horizontal top bar 13 terminating short of the end wall 6 or a divisional wall 12 having a similar top bar 13. The gap 14 allows the insertion or removal of cigarettes, &c., 11. Stiffeners 9 may be secured to the vertical walls 6, 7, 12. A frame may be inserted in each of a pair of pockets closed by a single flap.
Patent GB-845448-A (GB)
Title: Naphthylamino-oxazolines and their acid addition salts, their preparation, and compositions thereof
IPC: A61K31/00
Filed: 1957-05-10
Abstract: The invention comprises 2-(11-naphthylamino)-oxazolines of the basic formula:  <FORM:0845448/IV(b)/1> and their acid addition salts, (wherein the naphthyl nucleus may be substituted by one to three alkyl, alkoxy or alkylthio groups containing up to four carbon atoms each, and/or one to three chlorine, bromine or iodine atoms; and the methylene groups of the oxazoline ring may be substituted by alkyl groups each having one to four carbon atoms, the total number of carbon atoms in such substituents being one to eight); their preparation by heating in a solvent medium (e.g. water or an aliphatic alcohol) the corresponding N-(1-naphthyl)-N1-(b -substituted alkyl)-urea (wherein the b -substituent is a bromine, chlorine or iodine atom or a methanesulphonyloxy or p-toluenesulphonyloxy group) and, if the free base is desired, precipitating the latter by the addition of an alkaline reagent; and pharmaceutical compositions containing the products (see Group VI). Examples describe the preparation of 2-(11-naphthylamino), 2-(21-chloro-11-naphthylamino)-, 2-(31,41- di-methyl-11-naphthylamino)-, 2-(21,51-di-iodo-11-naphthylamino)- and 2-(21-methyl-11-naphthylamino)-oxazoline, 2-(31,51-dipropylthio11-naphthylamino) -5-methyloxazoline and 2-(11-naphthylamino)-5-n-butyloxazoline by the above method, using water as reaction medium.  Specification 845,846 is referred to.ALSO:Therapeutic compositions contain, in association with a pharmaceutical carrier, a 2-(11-naphthylamino)-oxazoline of the basic formula:  <FORM:0845448/VI/1> or an acid addition salt thereof, wherein the naphthyl nucleus may be substituted by one to three C1-4 alkyl, alkoxy or alkylthio groups and/or one to three chlorine, bromine or iodine atoms, and the methylene groups of the oxazoline ring may be substituted by one or more alkyl groups containing not more than 4 carbon atoms each and 8 carbon atoms altogether, such compound being active as a tranquillizer or as a potentiator of anaesthetics (e.g. 21-hydroxypregnanedione sodium succinate), hypnotics, narcotics and analgesics.  The compositions may be in the form of tablets, capsules, elixirs or suspensions for oral application, or of sterile isotonic aqueous solutions or suspensions in oils for parenteral injection.  Specification 845,846 is referred to.
Patent GB-979233-A (GB)
Title: Improvements in or relating to window winding handles, notably for automobiles
IPC: G05G1/08
Filed: 1961-04-25
Abstract: 979,233. Securing handles on shafts. REGIE NATIONALE DES USINES RENAULT. April 25, 1961 [May 17, 1960], No. 14911/61. Heading F2U. [Also in Division E2] A window-winding handle comprises a sheath 1 crimped to a plate 2 fast with a socket 5 fitting on a square-section spindle 6 and retained axially by a steel wire spring 8 engaging a notch 6<SP>1</SP>. The spring 8 is secured to the handle by passing through apertures 5<SP>1</SP>, 5<SP>2</SP> in the socket and having its free end wound round a pin 7 which is fast with the plate 2. In order to remove the handle from its spindle an aperture 3 is formed in the plate 2, which is curved at 2<SP>1</SP>, and the spring is curved outwardly at 8<SP>1</SP> so that a screwdriver can be inserted in the gap thus formed and the spring distorted to the dashed line position to disengage the notch.
Patent GB-1292361-A (GB)
Title: Usaturated quaternary monomers and polymers
IPC: C08F20/36
Filed: 1970-03-26
Abstract: 1292361 Quaternary ammonium acrylic ester polymers ROHM & HAAS CO 26 March 1970 [4 April 1969] 14915/70 Heading C3P [Also in Divisions C2 and D2] Polymers corresponding to monomers of formula wherein R is hydrogen or methyl, R 1  and R 2  are alkyl or cyclohexyl, X is chlorine, bromine or iodine, A is a C 2-6  alkylene group having at least two carbon atoms in the linking chain or a group -(CH 2 CH 2 O) x CH 2 CH 2 - where X is at least 1, and Y is an anion, are prepared by (a) polymerization of the monomer quaternary salt or (b) polymerization of an amine salt of formula CH 2 =C(R)COOANR 1 R 2 .HY, followed by quaternization by reaction with an epihalohydrin in an aqueous acid medium. Emulsion polymerizations are disclosed, using free-radical catalysts, e.g. in redox systems, or radiation. Lists of comonomers are given, those exemplified being methyl, ethyl and n-butyl acrylates, methyl methacrylate and styrene. When the polymer is prepared by quaternization the product contains units of formula These cross-link spontaneously in alkaline conditions, rapidly on heating, but have stability to alkali on dilution to 2-10% solids, in which state they may be alkali-activated for use in paper making (see Divisions D1-D2).
Patent GB-313725-A (GB)
Title: Improvements in or relating to instruments for indicating draught and/or pressure ofgaseous fluids
IPC: G01L7/22
Filed: 1928-05-22
Abstract: 313,725. Dunglinson, B., and Electroflo Meters Co., Ltd. May 22, 1928. Draught gauges; liquid - level pressure gauges, indicating- means for.-An index or pointer registering with a vertical scale is suspended by a vertical cord arranged to be moved on changes of pressure. A bell 1 is suspended from a beam 2, a pipe 5 conveying pressure fluid to the interior of the bell through the liquid seal. A pendulum rod 7 attached to the pivot pin of the beam 2 is provided with an adjustable weight 8, the weight of the bell itself being balanced by a weight 9 on the beam. The pivot pin of the beam carries a toothed wheel 10 which meshes with a pinion 11 on the spindle 12 of a pulley 13 over which passes a cord 14 to a vertically sliding index 16 moving over a scale 17 which is translucent and illuminated from the back. The scale range is determined by the adjustment of the weight 8. Several instruments may be mounted side by side and a single elongated tank employed for all bells.
Patent GB-581252-A (GB)
Title: Improvements in or relating to exhaust valves of internal combustion engines
IPC: F01L3/00
Filed: 1944-08-08
Abstract: 581,252. Valves. FLACK, A. M. (Vigo, G.). Aug. 8, 1944, No. 15018. [Class 7 (vi)] A two part exhaust valve comprises an inner part 2 of the normal poppet valve type seating on an outer part 4 which is annular and has a further seating on the cylinder head, the two parts being moved simultaneously in opposite directions. The outer part 4 is carried by a spider 5 from a hollow spindle 6. The 'valve 2 has a stem 3 which is operated in the normal manner against a spring and which carries pins 11 which oscillate levers 10 on pivots 9 carried by extensions of the valve guide 7. The levers 10 engage pins 13 on lugs of a slotted disc 14 which is held on the spindle 6 by nuts 15 and thus operate the valve 4. The valves 2 and 4 have equal area and are thus balanced.
Patent GB-1134943-A (GB)
Title: Improvements in and relating to diazo-type reproduction
IPC: G03C1/52
Filed: 1966-04-05
Abstract: 1,134,943. Diazotypy. KEUFFEL & ESSER CO. April 5, 1966 [April 5, 1965], No.15108/66. Heading G2C. Diazo-type materials comprising a fluidimpermeable support bearing in the same or separate layers a diazo compound and discrete thermoplastic particles are alternatively imaged by either conventional uv exposure and development or heat exposure causing the heated areas to coalesce forming fluid-impermeable image areas followed by diazo-type development using a fluid, e.g. NH 3 , an alkaline liquid containing an azo coupler, or a sheet which releases alkali on heating. The thermographic image may be fixed by overall uv exposure. Specified supports are optionally coated paper, plastics and cloth and specified thermoplastics are polymers of acrylic ester, vinyl acetate, ethylene and styrene.
Patent GB-348394-A (GB)
Title: Improvements in and relating to molds for casting metals
IPC: B22D15/02
Filed: 1930-05-17
Abstract: 348,394. Casting pistons. HATER, H. J., 2416, Beekman Street, Cincinnati, Ohio, U.S.A. May 17, 1930, No. 15213. Convention date, June 7, 1929. [Class 83 (i;.] Cores ; moulds.-A mould for casting a piston of the split-hub type, described in Specification 326,712, [Class 122 (i), Engine and like cylinders &c.], is provided with a core having a body section, with depressions 36, Fig. 6, near its inner end, and outer sections 27, with thin tapering extensions 42 bridging the depressions 36. The body comprises a control section 25 with longitudinal keys 32 engaging intermediate sections 26. The extensions 42 have perforations 43 for cores 20, Fig. 3, operated by racks 21 and pinions 22. The core sections are provided with handles 24 and have projections 34 at the inner end.
Patent GB-1055536-A (GB)
Title: Method for the production of lime slagstone
IPC: C04B28/22
Filed: 1964-04-10
Abstract: Lime slagstone is produced by mixing slag and/or flue dust and slaked- or quick-lime, damping with water, shaping, placing the shapes in an autoclave and hardening by treatment with water vapour initially under vacuum pressure and finally at a pressure of 8-23.7 atm. abs. and a temperature above 160 DEG  C. The composition may also contain pumice.
Patent GB-1284791-A (GB)
Title: Detergent
Inventor: BEST PETER
IPC: C11D10/04
Filed: 1970-04-01
Abstract: 1284791 Detergents UNILEVER Ltd 1 April 1970 [2 April 1969] 15408/70 Heading C5D A detergent composition comprising, as sole detergent surfactant, 5-100% by wt. of an active detergent mixture consisting of an alkali metal, ammonium or substituted NH 4  soap of a fatty acid with 8-24 carbon atoms and a compound of general Formula I in which R denotes a branched or straight-chain C 8 -C 24  aliphatic hydrocarbon residue which may be unsaturated, a C 8 -C 24  alkylamine residue or a C 8 -C 24  acylamide residue; R<SP>1</SP> is -C 2 H 4 - or -C 3 H 6  or a mixture thereof; n is 1-40, m is 1 to 3; M is H or a cation, in a wt. ratio of 10 : 1 to 1 : 10 of the soap to the compound of Formula I. M may be an alkali metal, e.g. sodium, an alkaline earth metal, e.g. calcium, an amine or an alkylolamine. Up to 45% wt., preferably 10% wt., of a builder may be present. The builder may be inorganic, e.g. a polyphosphate, alone or in admixture with an organic builder such as ethylene diamine tetraacetic acid, nitrilo-tri-acetic acid or an alkali metal salt thereof. Optional ingredients are sodium silicate, sodium carbonate, sodium perborate, sodium carboxymethylcellulose, enzymes (e.g. proteases, amylases and/or lipases) and other conventional detergent auxiliaries. Specification 1,169,496 is referred to.
Patent GB-1354655-A (GB)
Title: Metallic fibre scouring pads
IPC: C11D17/04
Filed: 1972-04-04
Abstract: 1354655 Scouring pads COLGATE-PALMOLIVE CO 4 April 1972 [5 April 1971] 15429/72 Heading C5D Metallic fibre scouring pads contain a soap composition comprising saponified fatty acids and from 1 to 10% by wt., based on the soap composition, of borax. Preferably, the soap is a 40 : 60 mixture of saponified distilled palm oil fatty acids and saponified distilled palm kernelcoconut oil fatty acids, especially the potassium soaps. The soap composition may contain (a) 1 to 5% by wt. of sodium nitrite, (b) 1 to 8% by wt. sodium carbonate, (c) perfumes and dyes and (d) 20 to 60% of water. The pads are used to produce a good, consistent shine on aluminium surfaces.
Patent GB-705044-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J1/20
Filed: 1952-06-19
Abstract: 705,044. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 19, 1952 [June 22, 1951], No. 15459/52. Class 39(1) In an electric discharge tube comprising an in directly heated cathode, the cathode sleeve of which i: provided at one end with a collar and is arranged in ar insulating centering mem ber at least at this end, a thin supply conductor being welded to the extre mity of this end, the supply conductor is formed be between the weld and the centering member in a manner such that this conductor jointly with the collar holds the cathode in the centering member against movements in the direction of the length of the cathode. In one form, Fig. 2, the conductor 7 is bent in the form of a loop. In another arrangement, Fig. 3, the conductor 13 is severed below the centering disc 11 and bent back so that its end engages the centering disc.
Patent GB-946594-A (GB)
Title: Improvements in or relating to the measurement of fluid flow
Inventor: DALL HORACE EDWARD
IPC: G01F1/44
Filed: 1961-04-28
Abstract: 946,594. Fluid flowmeters. GEORGE KENT Ltd. April 30,1962 [April 28,1961], No. 15517/61. Heading G1R. Apparatus for measuring rate of flow of a fluid has a Venturi 4 located in a tubular body 1 between an inlet 3 in the cylindrical wall of the body and an outlet 8 shielded from the inlet direction and including the polar axis of the inlet aperture and two pressure tappings 6 and 7 located respectively at the Venturi throat and upstream of the Venturi. The base of the body is between 2. 2 and 2. 5 times that of the Venturi throat and the outlet 8 is oblique to the axis of the body. The apparatus is mounted in a flow-pipe with the inlet 3 facing upstream. Specification 689, 474 is referred to.
Patent GB-784590-A (GB)
Title: Improvements in or relating to the cold separation of air
Inventor: SCHUFTAN PAUL MAURICE
IPC: F25J3/04
Filed: 1955-05-31
Abstract: 784,590. Cold separation of air. BRITISH OXYGEN CO., Ltd. May 2, 1956 [May 31, 1955], No. 15586/55. Class 8(2). Compressed air at 10 atmospheres pressure having been freed of carbon dioxide in a scrubber 3 and cooled by separated nitrogen in a heat exchanger 4 is divided into a major portion which is further cooled in alternating exchangers 11,12, an exchanger 13 and a turbine 14, and into a minor portion which is further compressed at 5 to about 80 atmospheres, freed from moisture in a drier 6, cooled by liquid oxygen from a low pressure column 16 in an exchanger 7 and by liquid nitrogen from a high pressure column 15, and is expanded isenthalpically at a valve 9 before joining the major stream entering a scrubber 10, liquid from which is expanded into the low pressure column 16 ; vapour being fed to the high pressure column 15. A pump 18 forces the liquid oxygen through the exchanger 7 where it is vaporized and discharged as product.
Patent GB-355328-A (GB)
Title: Manufacture of arylides of aromatic hydroxy-carboxylic acids
IPC: C07C233/12
Filed: 1930-05-21
Abstract: The m-hydroxytolylarylamino carboxylic acids prepared according to Specification 352,644, are converted into arylides by heating with arylamines in the presence of condensing agents such as phosphorous trichloride with the use of a diluent which may or may not be capable of binding acids such as o-dichlorbenzene, toluene, xylene, dimethylaniline, chlorbenzene.  The arylides in the form of their alkali metal salts have an affinity for vegetable fibres such as cotton.  The preparation of the following arylides is described in the examples:-the anilide, p-nitranilide and p-toluidide of 3-hydroxy-6-methyldiphenylamine carboxylic acid ; the anilide, o-arisidide, p-chloranilide and p-nitranilide of 3 - hydroxy - 6,41 - dimethyldiphenylamine carboxylic acid ; the anilide, p-naphthylamide, p-nitranilide, p-chloranilide, o-toluidide and o- and p-anisidides of 3 - hydroxy - 6 - methyl - 41 - chlordiphenylamine carboxylic acid ; the anilide, m-nitranilide, p-chloranilide and p-naphthylamide of 3-hydroxy-5-methyl-41-chlordiphenylamine carboxylic acid.
Patent GB-672646-A (GB)
Title: Improvements in high frequency electron discharge device and circuit
IPC: H01J23/30
Filed: 1948-06-11
Abstract: 672,646. Travelling-wave tubes. RADIO CORPORATION OF AMERICA. June 11, 1948 [June 25, 1947], No. 15810/48. Class 39.(i)., [Also in Group XL (b)] The spacing between the helix and a surrounding metal shell in a travelling-wave tube is diminished in the neighbourhood of the input or output coupling to match the. helix to the coupling line. The shell may taper, or the helix may increase in diameter. As shown, Fig. 4, for a travelling-wave tube with input and output helices 11<SP>1</SP>, 11<SP>11</SP> separated by a partition 60, and terminating in resistors 70, 71 adjacent the partition, the metal shell 10 tapers towards the input and output lines 13, 20. A second cathode 80 surrounding the aperture 61 in the partition 60, intensifies the beam passing between the helices. The procedure indicated may be repeated, further partitions being provided. The pitch of the helix may be varied near the collector electrode 12 to maintain synchronism between the beam and the waves. The potential of the collector electrode is adjusted to a suitable value relatively to the cathode, and the helix or helices may also be biased relatively to the cathode. A plurality of capacitative plates 51, Fig. 3, connected to the metal shell through resistors 50, may be provided to damp out parasitic oscillations. A magnetic focusing coil is provided. Impedance transformer links may be inserted externally of the envelope, between the input and output couplings to the helix and the input and output lines proper (see Group XL (b)).
Patent GB-887531-A (GB)
Title: Improvements in or relating to ceiling structures incorporating heating installations
Inventor: STARKEY FRANK WILLIAM
IPC: F24D13/02
Filed: 1959-05-08
Abstract: 887,531. Ceilings. HULTON ESTATE Ltd. March 9, 1960 [May 8, 1959], No. 15812/59. Class 20(4) [Also in Group Xl] Two plaster boards 11, 15 spaced apart by plaster board strips 14, the space containing an electric heating cable, are attached to the joists 10 of a ceiling by means of nails which pass through board 15, strip 14 and board 11 into the joists. A heat reflecting layer 12 of aluminium foil or an insulating layer is provided on the upper surface of the plaster board 11.