baber/WOPTO huggingface dataset:
Patent GB-1376643-A (GB)
Title: Prefabricated buildings
IPC: E04B1/00
Filed: 1972-05-17
Abstract: 1376643 Prefabricated buildings; modular structures SOC INDUSTRIELLE DE RECHERCHE ET DE REALISATION DE L'HABITAT 17 May 1972 23228/72 Headings E1A and E1K [Also in Division F2] A prefabricated room unit 1, Fig. 1, consists of a floor and a ceiling each made up from two identical sections such as 2a, 2b which are stiffened by pre-stressed cables such as 4 and are spaced apart by frames 9a, 9b, 9c each having studs 10 for positioning the room unit on a support column 30, wall panels 11 being provided as shown. The self-supporting frames forming the floor and ceiling and the vertical frames 9 are made from stamped sheets spaced apart and filled with an insulating material such as self-adherent polyurethane foam. Each column 30 is provided with an apertured flange adapted to seat four room units, see Fig. 4 (not shown), adjacent room units being bolted together and each vertical frame thereof having a storm water drainage downpipe therein. Certain room units may be connected as by collars 42, Fig. 5, to a shaft 40 made up from four sectors 41 and provided with ventilation pipes, feed water supply and waste pipes, see Figs. 6a, 6b and 6c (not shown). For innumerable minor details concerning dimensions, seals, wind-bracing, gas and electrical services, layouts of single storey and multi-storey buildings the Specification and remaining drawings (not shown) should be referred to.
Patent GB-439698-A (GB)
Title: Improvements relating to tubular structures or members suitable for the manufacture of seats, mattress frames and the like
IPC: A47C23/26
Filed: 1934-08-13
Abstract: 439,698. Mattresses ; seat bottoms. BENT TUBES, Ltd., BIDDULPH, H., and SCOLTOCK, H., Holloway Bank, West Bromwich. Aug. 13, 1934, No. 23280. [Classes 52 (ii) and 52 (iv)] [See also Groups X and XXII] A tubular structure for a mattress frame, seat, &c. adapted for the attachment of a mesh, plain canvas or like mattress or seat bottom has spaced pairs of slits, the metal adjacent which is pressed inwardly at al in channel formation or spaced concavitous manner to leave intermediate bridge parts a<2> constituting fastening loops for the springs &c. b. The slits are made simultaneously with the pressing or punching operation. The springs &c. may be directly attached as shown or a wire or rod may be passed through the loops a<2> and the looped edges of a canvas seat &c. Fig. 6 shows a modification in which the loops a<4> are longitudinal of the tube.
Patent GB-1303854-A (GB)
Inventor: VECCHIO M
IPC: C07C67/00
Filed: 1970-05-13
Abstract: 1303854 Chlorofluoromethanes MONTECATINI EDISON SpA 13 May 1970 13 May 1969] 23928/70 Heading C2C Chlorofluoromethanes are prepared by reaction of (a) methane and chlorine or (b) carbon tetrachloride, in the presence of a halohydrocarbon, with calcium fluoride or a calcium fluoride-containing substance in the form of a fluidized bed, at 450 to 550 C., the fluorinating agent being introduced into the reactor in the form of a suspension in at least part of the above-mentioned halohydrocarbon. Fluorinating agents specified are fluorite and a calcium fluoride-calcium chloride mixture and preferably have a particle size below 50 microns. The halohydrocarbon is preferably a recycle. Reaction may be effected in a single or several stages. In exemplified apparatus reagents are introduced through a sprayer with concentric outlets.
Patent GB-773468-A (GB)
Title: Process for the production of 3-substituted 4-hydroxy-coumarins
IPC: C07D311/42
Filed: 1955-08-15
Abstract: 4-Hydroxycoumarins and their 1-thio analogues of the general formula: <FORM:0773468/IV(b)/1> (wherein X is O or S, R is alkyl, alkoxyalkyl, aryloxyalkyl, aryl or alkylmercaptoalkyl, aralkyl, aryl, arylaryl, or aralkylaryl wherein aromatic nuclei can be substituted by halogen, alkyl, alkoxy or nitro groups, and Ar is o-arylene aryl-o-arylene or aralkyl-o-arylene wherein aromatic nuclei can be substituted by halogen, alkyl or alkoxy groups) are prepared by heating to at least 240 DEG  C., preferably 300 DEG  C., a -substituted malonic acid diaryl esters of formula Ar1XCOCHRCOXAr1, wherein Ar1 represents the aryl, arylaryl or aralkylaryl radical corresponding to Ar, having a hydrogen atom in at least one o-position with regard to X.  In examples: (1) isoamyl malonic acid diphenyl ester is heated 90 minutes at 300 DEG  C. in a flask fitted with a wide sloping tube, phenol distils off, the residue is extracted with sodium hydroxide solution and 3-isoamyl-4-hydroxycoumarin precipitated with HCl; similarly prepared are 3 - methyl -, ethyl -, n - propyl -, isopropyl -, n - butyl -, n - amyl -, isoamyl, n-hexyl -, phenyl -, and benzyl - 4 - hydroxycoumarin; (2) benzylmalonic acid bis-(p-benzylphenyl) ester is heated in a sausage flask, and then 4-benzylphenol distilled off under reduced pressure, leaving 3,6 - dibenzyl - 4 - hydroxycoumarin; (3) benzylmalonic acid bis-(p-phenylphenyl) ester is heated at 300 DEG  C., and p-phenylphenol removed by steam distillation, yielding 3-benzyl-4-hydroxy-6-phenylcoumarin; (4) benzylmalonic acid bis-(o-benzyl-p-chlorophenyl) ester is heated as above and 3,8-dibenzyl - 4 - hydroxy - 6 - chlorocoumarin isolated by extraction with boiling aqueous caustic soda lye, filtration and acidification.  Other starting materials specified for the cyclisation process are benzyl dithiolmalonic acid diphenyl ester, 4-chlorobenzyl malonic acid bis-p-cresyl ester, 2-methyl-benzyl malonic acid bis-4-methoxyphenyl ester, 3,4-dimethoxy-benzyl malonic acid diphenyl ester, 4-bromophenyl malonic acid diphenyl ester, 4-isopropylphenyl malonic acid diphenyl ester and 4-methoxyphenyl malonic acid diphenyl ester.
Patent GB-773120-A (GB)
Title: Process and arrangements for recording variations in phenomena
IPC: G01D15/00
Filed: 1955-08-16
Abstract: 773,120. Recording-apparatus. CLAVEL, J. Aug. 16, 1955 [Aug. 17, 1954], No. 23589/55. Class 106 (4). Recording-apparatus comprises in combination in a dark room, a photographic film 1, a pressure tool 8 pressed against the film, means for moving the film 1 and means for displacing the tool 8 according to variations of a phenomenon while keeping it pressed on the film. The tool 8 is pointed or has a thin edge and is secured to a support 7, carrying a weight 9 and pivoted on a shaft 5 axially displaceable in accordance with the variable. Any suitable support for a pressure-sensitive emulsion may be used in place of a photographic film. If the pressure applied through the tool 8 is lower than a certain limiting pressure and if the emulsion is developed without exposure to light, a black line on a white ground results. If the pressure is above another higher limit and if the emulsion is developed after exposure to light, a white line on black results.
Patent GB-1347140-A (GB)
Title: Sodium tripolyphosphate
IPC: C01B25/41
Filed: 1971-04-19
Abstract: 1347140 Sodium tripolyphosphate CHEMISCHE WERKE ALBERT AG 19 April 1971 [11 March 1970] 23635/71 Heading C1A [Also in Division C5] Hollow spheres of sodium tripolyphosphate are prepared by spray drying a solution containing (a) mono and disodium phosphate derived from thermic phosphoric acid with an atomic ratio Na : P of approximately 5 : 3, (b) an expansion agent which decomposes with the elimination of a gas, (c) a Ca and/or Mg compound which does not decompose under the process conditions, and then calcining the spray product. The spheres may have a diameter 250-1000 Á. The Ca or Mg compound may be in the form of the sulphate, oxide or hydroxide, preferably in an amount of from 0À03-0À5% by weight calculated as oxide or 0À05-0À8% by weight calculated as SO 3 , based on the polyphosphate formed. The expansion agent may be acetamide, urethane, cyanamide, urea, a water soluble ester, NH 4  salt, or an acid salt.
Patent GB-1497329-A (GB)
Title: Floating breakwater
IPC: E02B3/06
Filed: 1975-05-30
Abstract: 1497329 Breakwaters J G O WATSON 30 May 1975 [4 June 1974] 23650/75 Heading E1H A floating breakwater comprises pontoons 18, 20, 22 made from, e.g. concrete, and having buoyancy compartments 32, joined in a triangular plan by hinging members 24, which include inflatable buffers (38), (44), Fig. 6 not shown. Wave spoilers 34 can be disposed on the decks of the pontoons, or elongate beach members (48) Fig. 7 not shown. The buoyancy of the pontoons can be varied.
Patent GB-863505-A (GB)
Title: Resinous tanning agents
IPC: C14C3/18
Filed: 1959-07-09
Abstract: 863,505. Tanning leather. FARBENFABRIKEN BAYER A.G. July 9, 1959 [July 23, 1958], No. 23674/59. Class 76. [Also in Group IV (a)] A synthetic tanning agent is produced by condensing, in the presence of an acid catalyst, an aromatic hydrocarbon having condensed benzene nuclei, formaldehyde or a substance yielding formaldehyde under the reaction conditions, and an aromatic carboxylic acid containing at least one hydroxyl group. Specified aromatic hydrocarbons are naphthalene, anthracene and phenanthrene, and several alkyl and alkoxy naphthalenes are also listed. Salicylic acid is particularly suitable as the aromatic hydroxy carboxylic acid, but 4-hydroxy benzoic acid and the cresotic acids are also mentioned. The resinous products can be brought into aqueous solution as their alkali metal, ammonium or amine salts, and can be precipitated from aqueous solution by salts of chromium, aluminium, iron or zirconium or by acids. In an example, a shaved full chrome-tanned cow hide, which in the cut of the leather showed a pH of 4.3 to 4.6, is drummed in an aqueous solution of a resinous condensation product obtained, in the presence of aqueous hydrochloride acid, from salicylic acid, naphthalene and an aqueous solution of formaldehyde, and afterwards is fat liquored and finished in the usual manner to give a full leather with a firm, tight grain.
Patent GB-1174862-A (GB)
Title: Improved Power Supply Unit
Inventor: HOUNSOME GRAHAM JOHN
IPC: H02H9/04
Filed: 1967-05-22
Abstract: 1,174,862. Protective arrangements. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. 22 May, 1968 [22 May, 1967], No. 23695/67. Heading H2K. A power supply arragement, e.g. for transistorized equipment in aircraft, comprises a transformer 12, a rectifier 13, a smoothing choke 17 a smoothing capacitor 18 and a Zener diode 19 connected across the capacitor so that short high voltage surges through the choke cause a momentary breakdown of the diode and are by-passed. If the output voltage from the arrangement rises above a predetermined level, a signal is applied to a controlled rectifier 20 to render it conductive which causes sufficient current to flow to blow a fuse 16.
Patent GB-156309-A (GB)
Title: Improved process for the manufacture of metallic tubes
IPC: C25D1/02
Filed: 1920-03-22
Abstract: 156,309. Coles, S. O. Cowper-. March 22, 1920. Moulds; electrodes, moving; supporting; preparing surfaces; cells; electrolytes, circulating; electrolytes, agitating.-In the manufacture of metal tubes, cathode rods of considerable length, which are arranged approximately horizontally in a depositing vat and kept in motion therein while electrolyte is rapidly circulated over them, are placed under tension in order to prevent sagging. As shown, the cathode rods b are held at their ends in two spider wheels d by adjusting nuts l, optionally with the interposition of spring washers. The spider wheels are carried by shafts h provided with ball thrust bearings k<1>. One shaft h is also fitted with a nut operated by a. hand-wheel k so as to put tension on the cathode rods. Each shaft passes through unpacked hard-wood bushings i, i<1> in inner and outer end walls of the vat. Electrolyte flows from the vat by an opening at one end to a store tank which also receives any electrolyte leaking through the bushings into the end compartments q. From the store tank the electrolyte is returned to an opening s at the other end of the vat by a centrifugal pump. Alternatively, one or both ends of the vat may be provided with vertical propellers, or the vat may be partly divided by a longitudinal partition, on each side of which is an electrode system, the electrolyte being then set in motion by high-speed vertical paddles at the ends of the partition. Anodes m are curved co-axially with the carrying-wheels d. The cathode rods may be of steel, brass, or bronze, electroplated with lead and polished with graphite.
Patent GB-512364-A (GB)
Title: A process for desulphurising mineral oils
IPC: C10G21/22
Filed: 1938-08-11
Abstract: 512,364. Desulphurizing hydrocarbons. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 11, 1938, No. 23746. Convention date, Aug. 16, 1937. [Class 91] Low boiling hydrocarbons such as gasoline are freed from sulphur compounds by treating the hydrocarbons in the liquid state with an aliphatic sulphonic acid containing less than 4 carbon atoms; at a temperature below 40‹C., and separating the purified oil. The sulphonic acid may contain a halogen atom attached to carbon. Examples are methyl, ethyl, and isopropyl sulphonic acids; chlor-methyl and chlor-propyl sulphonic acids. These are used alone in anhydrous state or diluted with sulpbur dioxide, acetic acid, methyl sulphone, methyl cyanide ; non-polar diluents such as sulphur dioxide extracts, lubricating oil ; small amounts of sulphuric acid or water. Mercaptans, thiophenes, and thio-ethers are removed. The gasoline or naphtha treated is preferably free from olefines, out may contain aromatic hydrocarbons which are not affected b the process. The extraction may be effected by simple mixing, settling, and separating, or in a countercurrent extraction tower. An aliphatic sulphonic acid enters a tower 1 at 3, iso-octane, or white oil as diluent at 4, and the sulphur-containing gasoline at 5, the temperature being between -10 and 40‹ C. The raffinate passes to a settler 19 with wash-water introduced at 18. The washed oil layer is freed from diluent and a small amount of polymers in a steam stripper 21. The oil may be finally treated with clay. The extract is mixed with water or acquous alcohol and passes to a settler 9. The sulphonic acid phase is freed from water and alcohol in a still 11 and the water-immiscible phase may be distilled in a column 14, yielding a residue of polymers. U.S.A. Specifications 2,024,117 and 2,114,852 are referred to.
Patent GB-1038392-A (GB)
Title: Improvements relating to mountings for rubber members, especially rubber buffers
IPC: B60R19/44
Filed: 1964-06-09
Abstract: 1,038,392. Bumper overriders. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.A.G.A. S.p.A. June 9, 1964 [June 11, 1963], No. 23750/64. Heading B7J. [Also in Divisions E2 and F2] A rubber buffer 1 is mounted on a sheet metal member by at least one tongue protruding from one face thereof and having an enlarged head 2, the arrangement being such that the enlarged head is twisted through an angle to be in alignment with a slot in the sheet metal member. The head is passed through the slot and then twisted back to its original position in which the major axis of the enlarged head is normal to that of the slot. The rubber buffer is provided with centring studs 4, 5 which frictionally interfere with the enlarged head 2 in its twisted state. The buffer is further provided with air filled recesses 7.
Patent GB-517980-A (GB)
Title: Improvements in multi-layer colour photography
IPC: G03C7/00
Filed: 1938-08-12
Abstract: 517,980. Colour photography. KODAK, Ltd., and JELLEY, E. E. Aug. 12, 1938, No. 23831. [Class 98 (ii)] In the production of coloured, especially colour developed, reversed images in a photographic element having either (a) three differently colour-sensitized emulsion layers all on one side or distributed between the two sides of a support, (b) two layers of which one contains a mixture of two differently coloursensitized emulsions as described in Specification 500,611, or (c) a single layer containing three differently colour-sensitized emulsions and also containing metallic silver images in some or all of the layers and light-sensitive silver salt images in some or all of the layers, the shadow effect of the silver image or images is prevented in the second exposure of one or more of the silver salt images by the use for the second exposure of ultra violet light within the wave band 305 to 325 ÁÁ, which may be obtained by passing ultra-violet light from a source giving a line or continuous spectrum through a layer of coherent silver or silver dispersed in a binder on a support transparent to light of this wave band. The elements may contain colour filters. Specifications 441,325, 444,198, 446,234, 447,748, 456,279, 500,717, 500,793, 500,826, and 501,002 also are referred to. The Provisional Specification also refers to Specification 440,032.
Patent GB-1191034-A (GB)
Title: Electrolytic Regeneration of Spent Ammonium Persulfate Solutions
IPC: C25C7/02
Filed: 1968-05-20
Abstract: 1,191,034. Electrolytically regenerating ammonium persulphate. FMC CORP. May 20, 1968 [June 30, 1967], No. 23853/68. Heading C7B. A spent aqueous ammonium persulphate etching solution, used for dissolving Cu, Co, Fe, Ni, Zn or an alloy thereof, e.g. Cu foil on photo-resisted printed circuit panels, and containing corresponding metal e.g. Cu sulphate, ammonium sulphate and residual persulphate, is electrolytically regenerated by introducing it as the anolyte of a cell, introducing an aqueous persulphate - free electrolyte as the catholyte of the cell, the catholyte and anolyte being separated by a cation exchange membrane, e.g. films of sulphonated copolymers of vinyl compounds on fibre glass or synthetic cloth backing, which allows metal ions to pass into the catholyte to be removed at the cathode but prevents persulphate in the anolyte from mixing with the catholyte, and recovering an anolyte solution having increased persulphate (from conversion of sulphate at the anode) and decreased dissolved metal. The spent etching solution is preferably continuously introduced into and recovered from the cell and recycled back to the main etching solution. The catholyte preferably comprises ammonium sulphate and sulphuric acid but may be alkaline. From 0À005 to 0À20% of urea or ammonium thiocyanate may be added to the anolyte. Preferably, the anode is of Pt.or Au and the cathode is of Cu or stainless steel. Specification 1,141, 407 is referred to.
Patent GB-405574-A (GB)
Title: Improvements in steam traps and the like
IPC: F16T1/34
Filed: 1933-08-28
Abstract: 405,574. Multiple - beat valves. LECHENE, F., 532, ChaussÚe d'Alsemberg, Brussels. Aug. 28, 1933, No. 23882. [Class 135.] A steam trap comprises a valve plug of generally conical contour having a series of dished discs 3 freely rotatable on a stem 2 and mounted in a casing 1 having an inlet 9 and outlet 10. The plug may be adjusted axially by a handle 7 to regulate the peripheral space around the discs, and accurate centring is ensured by the engagement of a smooth portion of the stem in the part 16 of the plug 6. The discs 3 are crescent shaped, the outer surface being circular and the inner parabolic. The device is stated to be useable as a pressure reducer.
Patent GB-1003660-A (GB)
Title: A process for coating a carrier web
IPC: B29C48/155
Filed: 1964-06-09
Abstract: 1,003,660. Larunates. TETRA A.B. June 9, 1964 [July 1, 1963], No. 23909/64. Heading B5N. In a process for extrusion coating plastics film on to a carrier web, at least one longitutudinal zone or strip that side of the plastics film which is to face the web is cooled using a gaseous coolant so that after the layers are adhered by passing through a roller nip, weaker adhesion exists between the film and web in these zones. The coolant may be applied using nozzles directed at the meeting line of the web and plastics film in which core layers of gas may be formed in the said zones between the film and web whereby the adhesion between the layers in these zones is reduced. By varying the position on the meeting line at which the coolant is applied, a longitudinal zone may be described which is not parallel to the longitudinal edge of the laminate. Also by varying the amount of coolant supplied the adhesion along said zone may vary. The plastics may be polythene and the web paper.
Patent GB-804115-A (GB)
Title: Improvements in and relating to bulldozers
Inventor: LIEBRECHT HEINRICH FRITZ
IPC: E02F3/76
Filed: 1955-08-19
Abstract: 804,115. Earth-scraping apparatus. LEEFORD (LONDON), Ltd. Aug 17, 1956 [Aug. 19, 1955], No. 23944/55. Class 68(1) A bulldozer blade-supporting frame comprises a pair of beams a interconnected at one end by a brace c having lugs o to which a dozer blade n can be pivotally connected, uprights e attached to the beams a at the ends thereof adjacent the brace c, and brackets g so secured at right angles to and on the sides of the uprights e remote from the blade n and provided with apertured horizontal surfaces i and inwardly facing vertical surfaces h. The surfaces i permit of the detachable mounting of a single mechanism, or a pair of the same or different mechanisms for rotating the blade in the lugs o. The holes j in the surface h when aligned with holes in the side frames of the vehicle chassis beneath which the frame is positioned permit of the frame being secured to the chassis.
Patent GB-474005-A (GB)
Title: Improvements in and relating to aircraft
IPC: B64C27/04
Filed: 1936-09-01
Abstract: 474,005. Flying machines. HINKSON, H. S., and LOVELL, G. H. Sept. 1, 1936, No. 23951. [Class 4] A flying-machine comprises a body A, Fig. 1, shaped to represent a horse having at the hoof portions 10 telescopic shock absorbers 11, 12, Fig. 8. Head 14 and tail 15 are oppositely movable to act as rudders and are controlled by rod and lever gear shown in Fig. 5. Forward propulsion is by airscrews 30, Fig. 1, mounted on shafts 28, 29, are driven through a manually operable clutch and reduction gearing by an engine 33, Fig. 2, and upper and lower helicopter screws 41, 42, keyed to a common shaft 40 driven through a manually operable clutch and bevel gearing from engine 48. An umbrella-like parachute 52 adapted automatically to open on descent is arranged on a vertical column enclosing shaft 40, Fig. 1.
Patent GB-585713-A (GB)
Title: Improvements in the production of cellulose esters
IPC: C08B3/24
Filed: 1945-09-19
Abstract: To the primary acylation solution resulting from the esterification of cellulose in an excess of a lower fatty acid anhydride in a solvent for the ester, and in presence of a catalyst, ice is added to convert the excess of anhydride into the corresponding acid without substantially increasing the temperature of the solution, and the amount of ice added is sufficient to provide water for effecting conversion of the anhydride and hydrolysis of the cellulose ester. Preferably, the temperature is maintained not in excess of 30 DEG  C. throughout the esterification of the cellulose and subsequent hydrolysis of the primary ester in solution.  Sufficient ice may be added to reduce the concentration of the total organic acid to about 95 per cent with respect to water.  The process may be applied to the production of cellulose acetate, propionate, butyrate, or aceto-butyrate.  The cellulose may be cotton, cotton linters, wood pulp, or reconstituted cellulose.  It may be activated by pretreatment with formic or acetic acids, or with alkali, and part or all of the catalyst required for esterification may be present in the pretreating liquid.  The catalyst may be sulphuric acid, zinc chloride, sodium bisulphate, or methyl sulphate.  The solvent for the cellulose ester may be acetic acid, propionic acid, butyric acid, or methylene chloride.  In an example, 100 parts of cellulose are pretreated by soaking in 50-100 parts of acetic acid.  The cellulose is then acetylated at 25-30 DEG  C. in a medium consisting of 300 parts of acetic anhydride and 2 parts of sulphuric acid.  After the reaction has taken place; 60 parts of ice are added to convert the excess of anhydride to acetic acid and to reduce the acetic acid concentration to 95 per cent with respect to water.  The solution is allowed to stand until the cellulose acetate has been hydrolysed to a product which is soluble in acetone.