baber/WOPTO huggingface dataset:
Patent GB-1465817-A (GB)
Title: Padding
IPC: C08J9/32
Filed: 1974-04-16
Abstract: A filling material for pads or supports consists of particles of thermoplastic material. At least one part of these particles is formed by extremely small bubbles the thin shell of which consists of thermoplastic, elastic vinylidene chloride copolymer and/or thermoplastic, elastic vinyl chloride copolymer, and the hollow core of which contains a gas, preferably chlorocarbon and/or hydrocarbon. In order to produce a pad or a support having a filling material of this kind, a procedure can be followed, for example, in which the bubbles are introduced into a pad or support covering through an opening located therein, by means of a carrier substance, for example water. The filling material is used, inter alia, for the production of resilient adaptation and supporting pads between relatively hard objects, for example shoe parts, and parts of the human body. The bubbles can be joined to one another to form a microfoam.
Patent GB-1138091-A (GB)
Title: Polyimide prepolymer coating solutions
IPC: C08G69/32
Filed: 1967-04-11
Abstract: 1,138,091. Polyamide precursor solutions. GENERAL ELECTRIC CO. 11 April, 1967 [5 May, 1966], No. 16443/67. Heading C3R. [Also in Division B2] A coating solution is made by forming a mixture in water of (a) an aromatic polycarboxylic acid having (i) two non-adjacent COOH groups, (ii) three COOH groups, two of which are adjacent, or (iii) two separate pairs of adjacent COOH groups; (b) m-phenylene diamine or a diamine where R is C 1-3  alkylene, CO, O or SO 2 ; and (c) a water-soluble tertiary amine or secondary monoamine, and allowing the mixture to interact at below 65‹ C. to form a homogeneous solution. On subsequent application of heat a polyamide, polyimide or polyamide-imide is formed. The solutions are stated to free from polymeric materials such as polyamide-acid. Specified amines (c) are pyridine, N-methyl or - ethyl morpholine, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl butanediamine, diethylamine and morpholine; specified acids (a) are benzophenonetetracarboxylic, isophthalic, trimellitic and pyromellitic. Various diamines (b) are mentioned and it is stated that up to 20% thereof may be replaced by an alkylene diamine. Conventional chain stoppers for the subsequently formed polymer may be included, e.g. monoamines or dicarboxy - lic acids, as may urea to assist solubility. The solutions may also be used for preparing fibres, and as impregnants and adhesives. The resulting polymers may be formulated with fillers, e.g. wood flour, diatomaceous earth, carbon, silica and abrasive grains such as silicon carbide and diamond grit.
Patent GB-816868-A (GB)
Title: Cooking ovens
Inventor: MCNICHOLL EDGAR JOSEPH
IPC: F24C15/02
Filed: 1956-05-09
Abstract: 816,868. Cookers. RADIATION Ltd. May 9, 1957 [May 29, 1956], No. 16544/56. Class 126 In order to permit either right- or lefthand opening of the door of a gas or electric cooker, the door hinges b may be attached by screws h to either side of the oven frame e. The frame is fitted with strikers or catch-pieces at its opposite sides engageable by a claw on the inner end of a spindle operated by a handle or knob d.
Patent GB-549346-A (GB)
Title: Improvements in or relating to protective arrangements for electric lamps
IPC: H03G11/02
Filed: 1941-12-23
Abstract: 549,346. Protective arrangements for wireless receivers etc.; polarity indicators. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Dec. 23, 1941, No. 16584. [Class 38 (iv)] [Also in Group XXXVI] An incandescent lamp 4 in series with the filaments 1 ... 3 of one or more amplifying tubes, e.g. a scale illuminating lamp in a radio receiver, is protected against excess voltage When switching on by one or more rectifiers 7 of the blocking layer type connected in shunt with the lamp. In circuits for connection to A.C. mains two rectifiers, or series connected groups of rectifiers, are arranged in series in the shunt circuit and oppositely poled. The arrangement also serves to indicate polarity of a D.C. supply. Specification 551,443 is referred to.
Patent GB-862719-A (GB)
Title: Separation of suspended solids
IPC: C02F1/54
Filed: 1959-05-14
Abstract: Aqueous suspensions are precipitated by means of a mixture of a water-soluble poly (vinylbenzyl quaternary ammonium) compound and a water-soluble high molecular weight acrylic polymer in an amount preferably of at least 0,1 pounds to 10 of solids.  The proportions are generally 5 to 200 pounds by weight of the quaternary ammonium compound to a 100 pounds by weight of the acrylic polymer.  It is preferred that one of the components of the combination be added to and thoroughly mixed with the suspension prior to the introduction of the other compound.  The exact order of addition of the components will vary depending upon such factors as the nature of suspended solids, the particular components of the combination of polymeric agents employed, the salt content of the aqueous medium and the pH of the suspension.  Reference has been directed by the Comptroller to Specifications 760,653 and 760,869.ALSO:Aqueous suspensions are precipitated by means of a mixture of water-soluble poly (vinylbenzyl quaternary ammonium) compound and a water-soluble high molecular weight acrylic polymer in an amount preferably of at least 0.1 pounds to 10 of solids.  The proportions are generally 5 to 200 pounds by weight of the quaternary ammonium compound to a 100 pounds by weight of the acrylic polymer.  It is preferred that one of the components of the combination be added to and thoroughly mixed with the suspension prior to the introduction of the other compound.  The exact order of addition of the components will vary depending upon such factors as the nature of suspended solids, the particular components of the combination of polymeric agents employed, the salt content of the aqueous medium and the pH of the suspensions. Examples are given of uranium ores and bentonite clays which are separated by the process of the invention.  Reference has been directed by the Comptroller to Specifications 760,653 and 760,869.
Patent GB-586488-A (GB)
Title: Improvements in flexible tube couplings
IPC: F16L33/26
Filed: 1944-08-31
Abstract: 586,488. Pipe couplings. NEWTON, E. P. (Packless Metal Products Corporation). Aug. 31, 1944, No. 16604. [Class 99 (i)]- A flexible corrugated metallic tube 10 has its end compressed longitudinally at 13 to provide a flat transverse surface which is adapted to be compressed against one or more annular ribs 44 on a coupling member 40. The braided wire covering 12 of the tube is flared over a split tapered collar 20, the bore of which has corrugations corresponding to those of the tube. A coupling nut 30 having a tapered bore 34 screws into the coupling member 40 and engages the collar 20 to compress the tube end 13 on to the ribs. The innermost annular rib may have a tapered surface engaging with the tube end.
Patent GB-820242-A (GB)
Title: Improvements in ventilators for windows
IPC: E06B7/10
Filed: 1957-05-27
Abstract: 820,242. Ventilators. GREENWOOD'S & AIRVAC VENTILATING CO. Ltd., and HUGHES, B. D. May 27, 1958 [May 27, 1957], No. 16713/57. Addition to 662,498. Drawings to Specification. Class 137 The ventilator disclosed in the parent Specification is modified by having the main plate element formed with integral side pieces instead of separate side strips.
Patent GB-919404-A (GB)
Title: Production of lactams
Inventor: SCHICKH OTTO VON
Filed: 1961-05-09
Abstract: Lactams are prepared by treating an o -hydroxy-fatty acid nitrile containing four to eight, especially four to six, carbon atoms and having a chain of at least three carbon atoms between the -OH and -CN groups with a molar excess of ammonia or a primary amine at a temperature of 200-350 DEG C. and at increased pressure, usually 50-150 atmospheres or above.  The reaction may be carried out in the presence or absence of water and may be performed continuously or discontinuously, the products generally being obtained from the reaction mixture by distillation.  The use of amines produces N-substituted lactams and diamines may be used to prepare bis-lactams.  Preferred amines are alkyl amines containing 1-12 carbon atoms, cycloalkyl amines containing 5-12 annular carbon atoms, aniline and its homologues, aralkyl amines containing a mononuclear aromatic ring and an alkyl radical containing 1-4 carbon atoms, and diamines containing 2-12 carbon atoms.  Namerous amines are specified.  The o -hydroxy-fatty acid nitriles may be obtained by reaction of o -halogen alcohols with alkali cyanides or as by-products in the reaction of a ,o -dihaloalkanes with alkali cyanides in aqueous alkaline solution.  In examples: (1) d -hydroxyvaleronitrile, concentrated aqueous ammonia and water give a -piperidone: (2) #c-hydroxybutyronitrile and concentrated aqueous ammonia give a -pyrrolidone: (3) e -hydroxycapronitrile and concentrated aqueous ammonia give caprolactam: (4) d -hydroxyvaleronitrile and aqueous methylamine give N-methyl-a -piperidone, excess aqueous methylamine being utilizable in a further batch: (5) d -hydroxyvaleronitrile and aqueous ethylamine give N-ethyl-a -piperidone: (6) d -hydroxyvaleronitrile, n-butylamine and water give N-(nbutyl)-a -piperidone: (7) d -hydroxyvaleronitrile, aniline and water give N-phenyl-a -piperidone; the use of p-toluidine instead of aniline yields N-(p-tolyl)-a -piperidone: (8) d -hydroxyvaleronitrile, 1,6-hexamethylene diamine and water give 1,6-hexamethylene - N,N1 - bis - (a  - piperidone); 1,2-ethylene-N,N1-bis-(a -piperidone) is obtained similarly by the use of ethylene diamine in place of the hexamethylene diamine: (9) d -hydroxyvaleronitrile, benzylamine and water give N-benzyl-a -piperidone; N-cyclohexyl-a -piperidone is similarly obtained by using cyclohexylamine in place of benzylamine: (10) d -hydroxyvaleronitrile and liquid ammonia give a -piperidone: (11) g -hydroxybutyronitrile, aniline and water give N-phenyla -pyrrolidone.
Patent GB-515575-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/30
Filed: 1938-06-07
Abstract: 515,575. Screw propellers., SOC. ANON. ALFA ROMEO. June 7, 1938, No. 16785. Convention date, June 5, 1937. [Class 114] In variable-pitch airscrews, the pitch-actuating mechanism comprises an adjustable gearing of which one sun planet is secured to the propeller boss and the other is free therein and coupled to the blade root whilst connected to this is a planet gearing of which one member normally stationary is adjustable. Upon the boss a of a propeller which is keyed to its shaft is secured a pinion f, whilst free on the boss is a pinion e having a bevel extension d which meshes with a bevel wheel c on the blade root b. Connecting these two sun wheels is a planetary system comprising pinions h, i, l and a supporting cage therefor. A central pinion o on a shaft n normally stationary is supported also in the carrier of the sun pinions. When stationary the whole system rotates so that there is no relative movement between the bevel wheel d and bevel c, but adjustment of shaft n and pinion o results in relative. movement and consequent pitch adjustment.
Patent GB-124708-A (GB)
Title: Improvements in or relating to Bundling Presses.
IPC: B65H54/84
Filed: 1918-10-15
Abstract: 124,708. Smith & Sons, W., (Assignees of Smith, R. B.). March 28, 1918, [Convention date]. Baling-presses.-In a press for bundling hanks of yarn, the press chamber is provided at the ends with hank-pins 5, each hank, being slipped over one of the pins, then twisted and slipped over a pin at the other end of the chamber. The pins 5 are secured by screws 9 in bosses 8. The chamber is provided at the front and back with standards 10, 11, 12, alternate standards 12 carrying hinged lids 13 which are secured by levers 16 pivoted on the standards 10. The levers 16 pass into slots in the lids and are formed with collars 18 which pass over projections 19. The movements of the lids and the levers 16 are limited by projections 15, 30. The platen 20 is carried by the plunger 21 of a hydraulic press, which is controlled by a four-way valve 26.
Patent GB-372586-A (GB)
Title: Improvements in or relating to packing for the stuffing boxes of engines, pumps and the like
IPC: F16J15/20
Filed: 1931-06-10
Abstract: 372,586. Stuffing-box packing. TALENT, H., Netherley, Park Road, Buxton. Derbyshire. June 10, 1931, No. 16859. Addition to 322,957, [Class 122 (v), Stuffing- boxes &c.]. [Class 122 (v).] In packing of the kind described in the parent Specification, the inner V-shaped strip, each side of which is located between the sides of other U-shaped strips or of a W-shaped strip is formed of material other than leather, such as asbestos textile material, rubber, wire gauze, &c.
Patent GB-434947-A (GB)
Title: Improvements in electric drives
IPC: H02P5/46
Filed: 1934-08-03
Abstract: 434,947. Maintaining equal speeds of motors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. Aug. 3, 1934, No. 16931/35. Convention date, Feb. 8, 1934. Divided out of 434,903. [Class 38 (iii)] In an arrangement for the sectional drive of machines, e.g. printing presses, having separate driving units according to Specification 434,903, the different synchronizing machines 1 are interconnected by automatic switches 21, the contacts of which are bridged by synchronizing relays 22 having contacts 23 in series with the circuits of the operating coils of the switches 21, which circuits also include the contacts of devices 25 each momentarily closed for each revolution of its associated machine unit, so that the synchronizing machines are automatically connected upon correct relative positioning of the machine units.
Patent GB-779261-A (GB)
Title: Process for fractionating starch
IPC: C08B30/20
Filed: 1954-06-09
Abstract: The process of the parent Specification is modified in that starch-containing raw material, e.g. impure potato starch, wheat, maize or potatoes whose cell structure has been broken down as by grinding or rasping, is dissolved, under pressure and at a temperature above 115 DEG C., in an aqueous solution of magnesium, sodium or ammonium sulphate, any undissolved matter is removed, the solution is cooled to precipitate amylose, which is separated from the mother liquor, and is then cooled further and/or has its salt concentration increased to precipitate amylopectin.  The solution may contain over 0,05 per cent, preferably between 0,2 and 0,5 per cent of a reducing substance, e.g. sodium sulphite alone or mixed with sodium bisulphite.  A small amount of an organic compound which is not completely miscible in water, e.g. iso-pentanol may be added to the solution.  Magnesium oxide may be added.  Specification 769,211 is referred to.
Patent GB-1432345-A (GB)
Title: Ophthalmic compositions and contact lens disinfecting compo sitions
IPC: C09K3/00
Filed: 1972-04-13
Abstract: 1432345 Ophthalmic compositions; disinfecting contact lenses SMITH & NEPHEW RESEARCH Ltd 4 April 1973 [13 April 1972] 17005/72 Headings A5B and A5E An ophthalmic composition or a contact lens disinfecting composition comprises an aqueous solution of at least one ophthalmically acceptable polymeric diguanide of the formula: in which each end of the polymeric diguanide is independently terminated either by an amino group or by an group and in which Z represents an organic divalent bridging group which may be the same or different throughout the polymer and n is at least 3, and/or at least one ophthalmically acceptable salt thereof, the diguanide and/or its salt being present in a total amount of from 0.0005 to 0.05% by weight based on the total weight of the composition. The compositions may contain a mixture of the diguanides and may contain additional bactericides such as thiomersal, benzalkonium chloride and phenylmercuric salts and ophthalmic drugs such as pilocarpine, chloramphenicol and steroids.
Patent GB-624294-A (GB)
Title: Improvements relating to fishing line reels
IPC: A01K89/016
Filed: 1947-06-27
Abstract: 624,294. Cotters. COOKE, S. E. June 27, 1947, No. 17080. [Class 89 (ii)] [Also in Group VI] In a fishing reel, having a readily removable spool 8, the'head of the spool spindle 9 is engaged by a spring loaded locking ring 17 slidable in the plane of the spool to lock the spool to the spindle and disengageable by an operating member 20 having an inclined surface adapted to engage the locking ring. The conical ends of both the spindle and the spool may have cylindrical appendages. Specification 616,136 is referred to.
Patent GB-1388592-A (GB)
Title: Panel with edge strip and process of manufacturing said panel
IPC: E06B3/84
Filed: 1972-04-13
Abstract: 1388592 Laminated panel SONESSON PLAST AB 13 April 1972 [19 April 1971] 17084/72 Heading B5N [Also in Division E1] A panel comprises a framework 4, side sheets 2, 3, e.g. of fibre board or particle board, and an edge strip 6 which is of PVC containing wood particles and is secured by glue 5. Wooden frame 4 may contain insulating material, e.g. a honeycomb of paper or metal or foamed plastics. The panel is covered by a laquer 7. The edge strip is extruded.
Patent GB-439281-A (GB)
Title: Improvements in and relating to hearths for domestic fires
IPC: F24B1/18
Filed: 1935-06-14
Abstract: 439,281. Domestic hearths; grates. CLARKE, S. J., c/o Clarke & Hobbs, Ltd., Station Road, Kettering, Northamptonshire. June 14, 1935, No. 17168. [Class 126] In a fireplace having a raised hearth 1 with a duct 12 extending through it to enable an ash-pan 15 located beneath the fire-grating 7 to be drawn through it from a space beneath the grating, which is located at or below the level of the hearth, the rear of the duct 12 terminates at an arched member 9 which supports the front of the grate. The fire-bed consists of two side bricks and the central grating 7, which is supported at the rear by a ledge on a bearer 11.
Patent GB-292130-A (GB)
Title: Improvements in or relating to electrolytic cells
IPC: C25B9/19
Filed: 1928-06-13
Abstract: 292,130. Montecatini Soc. Generale per l'Industria Mineraria ed Agricola. June 14, 1927, [Convention date]. Oxygen and hydrogen, obtaining; cells; electrodes; diaphragms. - In a gas-generator, each electrode comprises a pair of plates D directly riveted to copper supply bars P of rectangular section which are nickel-plated for protection against the alkaline electrolyte. Each electrode is surrounded by a diaphragm H of woven asbestos depending from a bell G provided with an upstanding channel N. perforated at the top, the channels corresponding to opposite polarities being disposed as shown. Each set of channels is surmounted by a hood M connected to a gaswithdrawal pipe. The electrodes are suspended by rods V and insulating washers U from the top of the channels N. The plates of each electrode are spaced apart by slots to permit a downward flow of electrolyte between them as a return to the upward flow outside due to the generation of gas. An insulating water-tight joint Q is provided in the bell G for the bars P. The cell A may be of iron, and rests on insulators B.
Patent GB-313562-A (GB)
Title: Process for the manufacture of polyazo dyestuffs
IPC: C09B35/46
Filed: 1929-06-04
Abstract: 313,562. Chemische Fabrik vorm. Sandoz. June 14, 1928, [Convention date]. Samples furnished. Azo dyes are made by coupling a tetrazotized diaryldiamine (1 mol.) with H acid (1 mol.) in acid solution and combining in alkaline solution the intermediate product with a monodiazo compound (1 mol.) and a N-alkyl-, aryl- or aralkylm-aminophenol (1 mol.). They dye mixed wool and viscose goods in level and equal black shades. In an example, the diazo compound of the product aniline # H acid # benzidine is coupled with N-(o-tolyl)-m-aminophenol. The aniline may be replaced by the toluidines or chloranilines, the benzidine by tolidine, and the end component by N-monoethyl-N-diethyl, and N-(p-tolyl)-maminophenol.
Patent GB-723749-A (GB)
Title: Steroids
IPC: C07J1/00
Filed: 1952-07-08
Abstract: The invention comprises 14a -hydroxy-4-androstene-3,17-diene, and the preparation thereof by reacting 14a , 17a , 21-trihydroxy-4-pregnene-3,20-diene with an oxidizing agent, e.g. chromic acid, in quantity and for a time sufficient to convert to keto the hydroxy group at the 17-position and to cause degradation of the side chain at the 17-position without causing similar changes elsewhere in the molecule.  14a , 17a , 21-trihydroxy-4-pregnene-3,20-dione is obtained by oxygenating 17a , 21-dihydroxy-4-pregnene-3,20-dione by means of Helicostylum piriforme ATCC 8992.
Patent GB-356205-A (GB)
Title: Improvements in the recovery of paraffin wax from materials containing the same
IPC: C10G73/06
Filed: 1930-06-04
Abstract: Paraffin wax is recovered from mixtures with other carbonaceous materials, and crude paraffin wax is purified, by formates of the lower alcohols mixed with a relatively small proportion of one or more organic solvents dissolving asphaltic bodies more easily. Treatment with formates alone may precede or follow, and according to the Provisional Specification the formate and the solvent may be used in sequence.  The extraction or purification may be in stages, and at atmospheric or higher temperatures and pressures. Specified solvents are benzine, benzene, toluene, xylene, pyridine, trichlorethylene, carbon disulphide, and carbon tetrachloride; 2-20 per cent relative to the mixture is suitable. (1) Brown coal low-temperature tar freed from pitch is stirred with an equal weight of a mixture of 80 cc. of methyl formate, 15 cc. of benzene, and 5 cc. of methanol, and the solvent removed by filtration under pressure; after three treatments and removal of residual solvent by heating 20 per cent of white paraffin wax is obtained.  (2) A mixture of oil and wax obtained by the p  destructive hydrogenation of brown coal low temperature tar is centrifuged, and the impure wax is washed with a mixture of 80 cc. of methyl formate and 20 cc. of benzene.  (3) 135 lb. of residue obtained by pressure filtration at 0 DEG  C. of a destructive-hydrogenation product of brown coal low temperature tar is boiled under reflux for 15 minutes with 200 lbs. of a mixture of 90 cc. of methyl formate and 10 cc. of light benzine, and the mass is cooled to 160 DEG  C. and filtered under pressure. The residue is washed thrice with 60 lb. of the solvent mixture; 126 lb. of white paraffin wax sufficiently pure to be oxidized catalytically with air is obtained.  The filtrate is evaporated, yielding 7,5 lb. of a yellow-brown residue.
Patent GB-380478-A (GB)
Title: Improvements in or relating to model or toy aeroplanes, gliders or the like
IPC: A63H27/00
Filed: 1931-06-13
Abstract: 380,478. Toy aircraft. PAVELY, D.A., 187, Replingham Road, Southfields, London. June 13, 1931, No. 17219. [Class 4.] A toy aeroplane or glider has a longitudinal member 2 to which planes 4, 5 are secured by separate strips 7 and rubber rings 6. The member 2 is provided on the upper surface of the body or upper edge of a thin strip 1, spaces 3 being left to permit of longitudinal adjustment of the planes. A fin 8 may be carried by the rear strip 7. Alternatively, the member 2 may be the sole or main constructional member of the glider. A heavy clip 9 is secured to the front end of the strip 1 and has a downward projection to enable the model to be projected from a catapult.
Patent GB-478176-A (GB)
Title: Improvements in and relating to depilatories
Filed: 1937-06-21
Abstract: A stick of plastic adhesive material to be applied to the skin and removed with a sharp pull to pluck out superfluous hairs is composed of glucose, beeswax, or other wax, and a powder such as maize or potato flour or chalk.  The ingredients are mixed together, boiled for 15 minutes and cooled.  Known compositions containing resin or rubber in place of glucose are referred to.