baber/WOPTO huggingface dataset:
Patent GB-807746-A (GB)
Title: Improvements relating to impregnation processes
IPC: H01B13/30
Filed: 1956-12-17
Abstract: 807,746. Proofing porous articles. GENERAL ELECTRIC CO. Dec. 17, 1956 [Dec. 22, 1955], No. 38433/56. Class 140. Porous articles are impregnated by introducing impregnant to them under vacuum while submitting them to ultrasonic vibrations. The method is particularly applicable to electrical devices such as capacitors and impregnants ranging from permanently viscous liquids to settable low-viscosity materials, such as epoxy resins with maleic acid curing agents may be used. The article may be dried under vacuum before the impregnant is introduced to it and may be immersed in the impregnant during the impregnation step. As shown, device 16, which may be a capacitor consisting of a case 17 and two tightly wound coils of conductive material separated by paper, cellulose or resin, is placed in receptacle 8. The device 16 may have its cover removed or have one or more holes drilled in the cover which may be sealed after impregnation. Receptacle 8 stands on frame 7 in container 1 which has a vacuum-tight cover 2 through which pass vacuum line 5 and a conduit 6. A vacuum is drawn over the device with conduit 6 closed and heat may also be supplied to device 16. Conduit 6 is opened and liquid impregnant allowed to fill the receptacle 8 and so covers the simultaneously energized ultrasonic generator 9. After impregnation the vacuum is broken and the device allowed to soak. The device is then sealed and, if necessary, heat-cured.
Patent GB-1484081-A (GB)
Title: Process for embossing a web of film
IPC: B29C48/08
Filed: 1974-09-03
Abstract: 1484081 Embossing HOECHST AG 3 Sept 1974 [5 Sept 1973] 38448/74 Heading B6J A web of thermoplastic film is embossed while being tensioned in the longitudinal and transverse directions. Longitudinal tension is produced due to the web transport and the transverse tension may be produced by revolving clip chains holding the edges of the web. The transverse tension may be increased by using a diverging tenter. The web may be heated or cooled whilst still subject to tension. The embossing may be applied as a line or lines parallel to the longitudinal edges of the web and may be applied while the web is ductile. The lines may be closely spaced to permit slitting of the web therebetween. The embossing may be applied before, during or after a longitudinal or transverse stretching of the web.
Patent GB-1476425-A (GB)
Title: Transfer printing
IPC: D06L3/12
Filed: 1973-08-14
Abstract: 1476425 Optically brightened dye transfer paper STOREY BROS & CO Ltd 2 Aug 1974 [14 Aug 1973] 38491/73 Headings D1B and DIP A carrier for use in transfer printing comprises a paper sheet containing 0.1 to 5 g/m<SP>2</SP> of a sublimable optical brightener which was incorporated into the pulp during the manufacture of the sheet, and a pattern on the sheet comprising one or more sublimable dyes. The optical brightener may have the formula: in which R represents a hydrogen atom, or a methyl, isopropyl or tertiary butyl group, or may be a substituted stilbene, benzothiophenes-oxide, pyrazoline, coumarin or benzimidazole. The carrier is placed in face to face contact with the material to be dyed and the carrier is heated to 80 to 300‹C by using an iron or by hot calendering. Reduced pressure may be used to facilitate sublimation.
Patent GB-1121000-A (GB)
Title: Improvements in or relating to optical glass
IPC: C03C3/072
Filed: 1965-09-13
Abstract: An optical glass contains by weight, 40-75% of boric oxide (B2O3), 7-24% of lead oxide (PbO), 6-14% of alumina (Al2O3).  Optional ingredients include not more than 33% of silica (SiO2), not more than 7.5% of alkali metal oxide (Na2O or K2O), not more than 3.5% of titania (TiO2), and not more than 7.5% of other compatible oxides such as antimony oxide (Sb2O3), tantalum oxide (Ta2O5) niobium oxide (Nb2O5), zirconium oxide (ZrO2) and oxides of lithium, magnesium, calcium, strontium, zinc, cadmium and arsenic.
Patent GB-1446791-A (GB)
Title: 1,3-diketo-1,2,3,4-tetrahydroisoquinolines
IPC: A61K31/47
Filed: 1974-09-06
Abstract: 1446791 Substituted α-isoquinolin-2yl-#- piperazin-1-yl alkanes and their pharmaceutical compositions DR KARL THOMAE GmbH 6 Sept 1974 [8 Sept 1973 (2)] 39083/74 Heading C2C The invention comprises compounds of Formula I wherein R<SP>1</SP> represents a H or halogen atom or a OCH 3  or SCH 3  group; R 2  represents H or OCH 3 ; n represents 2 or 3 and A represents a group of Formula Ia or Ib wherein R 3  represents H or CH 3 ; R 4  represents an optionally methyl substituted pyridyl group or a phenyl group optionally substituted by a chlorine atom, CF 3  group or by one or two methyl, ethyl or methoxy groups and R 5  and R 6  independently represent H or OCH 3  and their physiologically acceptable acid addition salts which may be prepared by reaction of (a) a compound of Formula II or IIa wherein R 1  and R 2  are as defined above and B is an oxygen atom or an optionally substituted secondary amino group with a compound of Formula III wherein A and n are as defined above, or with an acid addition salt thereof; (b) a compound of Formula IV wherein R 1 , R 2  and n are as defined above and Z represents a group exchangeable with the group A with a compound of Formula V where A is as defined above or (c) a compound of Formula VI wherein R 1  and R 2  are as defined above, or a metal salt thereof, with a compound of Formula VII where A, n and Z are as defined above and optionally (d) converting a compound of Formula I into its acid additive salt in known manner. 2 - [2 - (3,4 - dimethoxyphenyl)ethylamine] - 1- cyanoethane is prepared by reaction of 2-(3,4- dimethoxyphenyl)-ethylamine with acrylonitrile and is reduced with hydrogen in methanolic ammonia and in the presence of Raney nickel to obtain 1-[2-(3,4-dimethoxyphenyl)-ethylamino]- 3-aminopropane. Pharmaceutical Compositions having bradycardiac, antiarrhythmic and sedative activity for oral, rectal or parenteral administration comprise at least one compound of Formula I or a physiologically compatible acid addition salt thereof together with a pharmaceutical carrier or excipient.
Patent GB-1065955-A (GB)
Title: An optical maser receiver equipment
IPC: G02F2/00
Filed: 1964-09-25
Abstract: 1,065,955. Lasers. NIPPON ELECTRIC CO. Ltd. Sept. 25, 1964 [Sept. 26, 1963], No. 39137/64. Heading H1C. [Also in Division G1] In a laser communication system, an amplitude-modulated helium-neon gas laser produces a plurality of spectral lines equally spaced by a pitch frequency. The pitch frequency is controlled by Fabry-Perot reflectors between which the He-Ne gas discharge tube is located. The output spectral lines are mutually heterodyned in a light detector to produce a signal which is amplified by an I.F. amplifier tuned to the pitch frequency or a multiple thereof and applied to a detector to extract the modulating signal.
Patent GB-1347229-A (GB)
Title: Apparatus for purifying air or other gaseous media
IPC: B05B3/10
Filed: 1972-08-23
Abstract: 1347229 Wet gas scrubber G A NILSSON 23 Aug 1972 [23 Aug 1971] 39219/72 Heading B1R Apparatus for purifying gas by means of atomised washing liquid comprises a cylindrical rotatable centrifugal chamber 1, closed and fixed to a driving means at one end 2 and communicating with a gas inlet 3 at the other end; a washing liquid inlet 14 into the chamber; and openings in the form of outwardly diverging slots or nozzles in the peripheral wall of the chamber. The peripheral wall is formed of a series of metal rings 8 separated by spacer members (9) such that a plurality of outlet openings are formed between the spacer members, Fig. 2 (not shown). Alternatively venturi shaped openings (13) may extend through the wall, Fig. 3, (not shown). The centrifugal chamber is enclosed in a housing 6 under the influence of a fan 16 to create a negative pressure and thus to enhance the atomisation effect of the liquid as it is thrown against the peripheral wall of the housing. The liquid is emitted into the chamber 1 from cylindrical nozzle head (15).
Patent GB-926399-A (GB)
Title: Method of manufacturing complex air cooled turbine components
IPC: B22C21/14
Filed: 1961-11-03
Abstract: 926,399. Patterns. HOWE SOUND CO. Nov. 3, 1961 [May 3, 1961], No. 39476/61. Class 83 (1). In a cored pattern element 2 for the production of turbine components with elongated passages therein, the cores 8 are supported by means 10 having a first portion 12 through which the cores pass and a second portion 14 extending beyond the outer periphery of the pattern for embedding in the mould 16 to be formed around the pattern. The supporting elements are preferably of the same metal as that being cast or a composition which will dissolve during casting. A coating of an oxidising-resistant material such as chromium or aluminum may be provided on the elements 10 before assembly and the extensions 14 are machined off the final casting.
Patent GB-1091810-A (GB)
Title: Naphthoquinone derivatives
IPC: C07C409/34
Filed: 1966-09-05
Abstract: Novel compounds of the general formula <FORM:1091810/C2/1> (wherein X represents H or a halogen atom and Y represents H or OH, but X and Y are not both H) are prepared by reacting 2-hydroxy- or 2,8-dihydroxy-1,4-naphthoquinone with a butyryl peroxide substituted in the 4-position with a p-phenoxyphenyl or p-(p-halophenoxy) phenyl radical.  Anticoccidial compositions comprise a compound of the general formula above together with a poultry feedstuff or a non-toxic liquid carrier (e.g. drinking water).
Patent GB-945461-A (GB)
Title: Improvements relating to excavating machines
IPC: E02F5/06
Filed: 1962-10-19
Abstract: 945,461. Bucket chain excavators. CLEVELAND TRENCHER CO. Oct. 19, 1962 [Nov. 6, 1961], No. 39739/62. Heading E1F. In an excavator of the type having a digger unit 20 of endless, bucket-carrying chains 22 circulating about means 26, 26a, 28 supporting the chains on a boom 18 one of said support means 26a is adjustable by fluid-actuated means so as to automatically maintain a predetermined tension in the chains. The fluid actuated means comprise a ram or rams 48 mounted on the boom and acting on a slider block or blocks 38 slidably mounted in a guide slot or slots in the boom and carrying in bearings the shaft of one set of idler sprockets associated with the chains. On the digger unit encountering abnormal resistance during digging operations the build up in pressure in the hydraulic circuit of the ram or rams causes opening of a pressure relief valve in the circuit so that the ram or rams can collapse and the chains slackened until the cause of the abnormal resistance can be dealt with.
Patent GB-397543-A (GB)
Abstract: 397,543. Feeding-devices for granular &c. materials ; mixing. HUTCHISON, T., 67, Balmoral Buildings, Green, Aberdeen, and SCOTTISH AGRICULTURAL INDUSTRIES, Ltd., Charlotte Street, Leith. Feb. 26, 1932, No. 5752. [Classes 59 and 86.] A feeding - device for granular &c. material comprises a storage hopper in which a plate or false bottom is situated immediately over a rotary feed drum or star wheel, the plate being vibrated by the blades of the rotary drum or star and an adjustable guide-plate located over the rotary member for regulating the discharge of material. As shown in the Figure, a hopper 1 is provided with a discharge orifice 2 through which material is ejected by a rotary wheel 3. A flexible plate or partition 6 adjustable in a pivot 8 is vibrated by the rotation of the wheel 3 and a partition or gate 10 is movable to or from the partition 6 to vary the discharge opening between the gate and plate. One or more shelves may be fitted in the hopper above the bottom end of the plate 6 and these may be rotated or a horizontal rotary stirrer may be placed in the bottom of the hopper. The hopper may feed disinfectant into the feed shoot of a hopper supplying grain to a mixing drum or two hoppers containing different substances may discharge into a common shoot leading to a mixing drum.
Patent GB-898969-A (GB)
Title: Automotive multi-wheeled rollers
Inventor: NEIDHARDT HEINZ WERNER
IPC: B62D61/10
Filed: 1959-11-24
Abstract: 898,969. Rollers. SCHEID MASCHINENFABRIK G.m.b.H. Nov. 24, 1959, No. 39768/59. Class 6(1). [Also in Groups XXXI and XXXII] A self propelled roller comprises four front driven steerable wheels A and four rear wheels B disposed, as shown in Fig. 3, to present a continuous rolling surface, the space between the inner front wheels being occupied by a differential driving gear 6. The front wheels A are pivotally mounted in pairs on the arms 91 and 9<SP>11</SP> of a yoke 9, Fig. 4, which is mounted for rotation in the frame 1 and the rear wheels are pivotally mounted in pairs on the arms of a yoke 28, Fig. 5, pivoted to the frame at 29. The pivotal mounting 14 of the front wheels comprises a chain driven sprocket 37, Fig. 8, rotation of which rotates the yoke 9, the sprocket being connected by a mechanism not shown to the steering wheel. The input member of the differential gear is driven through a shaft 14, bevel gear 38 and cardan shaft 40 from the engine 2. The output members of the differential gear are connected to universal joints 22, Fig. 6, from which the outer front wheels 10 are driven through telescopic driving shafts 15. The hubs of the inner wheels 11 are flared to avoid contact with the shafts 15 over the full range of pivotation of the wheel pairs 10 and 11. The wheels 10 and 11 may be mounted for separate rotation in the spherical bearing 25, or the axles 23, 24 may be rigidly connected. Shoulders 26 cooperating with a flange 27 limit the pivotal movement of the wheel pairs 10, 11 about the spherical bearings 25. The rear wheel pairs are mounted upon shafts 19 in spherical bearings 25, the pivotal movements of which are similarly limited, the shafts 19 being rigidly connected to the conical hubs 30 of the outer wheels 15 and connected by universal joints 31 to the hubs 32 or 33 of the inner wheels 17 or 18, the hubs 32 and 33 being connected by a telescopic shaft 34, 35.
Patent GB-984633-A (GB)
Title: Manufacture of epoxy resins
Inventor: THERMET ROBERT
IPC: C07D301/28
Filed: 1961-11-07
Abstract: Compounds containing more than one epoxy group per molecule are prepared by reacting a chlorhydrin with at least one isomer of octochlorodihydroxydiphenyl in an alkaline medium. The preferred alkaline medium is aqueous NaOH and chlorhydrins mentioned are epichlorhydrin and glycerol dichlorhydrin.  Other compounds which do not react with the octochloro compound but which do react with a chlorhydrin to form a polyepoxide may be added to the reagents, e.g. bisphenol A.  The resins preferably contain at least 50% chlorine by weight, and can be hardened with known hardening agents.  In the examples:  (6) such a resin is dissolved in methyl ethyl ketone, and maleic anhydride is added; a glass plate is coated with the solution; (7) maleic anhydride is dissolved in such a resin, tri-n-butylamine is added, and the mixture is then poured into a mould coated with polyvinyl alcohol, and heated; (8) the same resin is dissolved in pentachloridephenyl, and N,N1-diethylamino-3-propylamine is added. The hardened resins char in the flame of a blow-pipe but are self-extinguishing. Specifications 741,870, 744,388, 773,655, French Specifications 1,154,500, 1,180,194 and 1,229,815 are referred to.ALSO:According to Example 6, a resin prepared from mixed isomers of octochlorodihydroxydiphenyl and epichlorohydrin was dissolved in methyl ethyl ketone, maleic anhydride was added to the solution, and the composition was coated on a glass plate, dried in the open air and heated for 16 hours at 150  DEG C.  Specifications 741,870, 744,388, 773,655 and French Specifications 1,154,500, 1,180,194 and 1,229,815 are referred to.
Patent GB-866501-A (GB)
Title: Improvements relating to electrical bridge circuits
Inventor: BAKER WILLIAM PERCIVAL
IPC: G01R17/00
Filed: 1958-12-12
Abstract: 866,501. Capacitance measuring. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 4, 1959 [Dec. 12, 1958], No. 40190/58. Class 37. In an arrangement wherein the capacitance of a capacitor C is measured by producing zero flux in a search coil SC which measures the resultant flux from a pair of opposed inductances N 1 , N 2 , comprising the ratio arms of a bridge, compensation for external fields is provided by bucking turns BT in series with the search coil. The number of bucking turns required in relation to the limb cross-sections and the search coil turns is discussed.
Patent GB-892007-A (GB)
Title: Improvements in or relating to polypropylene film
IPC: B29C55/00
Filed: 1960-11-23
Abstract: Polypropylene film having a crystalline index of at least 60, preferably 60 to 95, a half-time for crystallization at 120 DEG C. of at least 90 seconds, preferably 90 to 120 seconds, and a tensile strength of at least 11,000 lbs. per square inch in two mutually perpendicular directions is produced by extruding polypropylene in the form of a film at a temperature at least 15 DEG C. above the crystalline melting point of the polymer, preferable at 190 DEG -325 DEG C., and advantageously at 220 DEG -260 DEG C., stretching the film at a temperature at least 15 DEG C. above this melting point in at least two mutually perpendicular directions to an area increase of at least fourfold, preferably not greater than sixteen fold, quenching the stretched film to a temperature of -75 DEG C. to 15 DEG C., preferably from -25 DEG C. to 15 DEG C., heating the quenched film to a temperature of from 25 DEG C. to 10 DEG C. below the crystalline melting point of the polymer, preferably to 130 DEG -155 DEG C., and advantageously to 130 DEG -145 DEG C., stretching the film to at least two times its dimension in the quenched state simultaneously in each of two mutually perpendicular directions while maintaining the temperature within said range, and finally cooling the biaxially oriented film while holding it under tension to prevent any substantial change in its dimensions.  The crystalline melting point of the polymer is defined as the lowest temperature at which complete disappearance of the crystalline structure of the polymer is observed under the microscope using polarized light; when raising the temperature of a crystalline film of the polymer at a rate of about 2 DEG C. per minute.  The film is preferably produced by the inflated tube process.  In an example, a polypropylene having a density of 0,903, a crystalline melting point of 167 DEG C., a crystallinity index of 60 and a half-time of p  crystallization at 120 DEG C. of 105 seconds is melt extruded at 240 DEG C. through a circular die into an ice water bath to form a tube which is inflated to three times its extrusion diameter and is drawn off at such a rate that its area increase is ninefold. The tubing is slit to give a flat sheet about 5,5 mils thick and is stretched twice each of its original dimensions on a tenter frame stretcher in an oven at 140 DEG C.  The tenter frame bearing the film is then cooled to room temperature while the dimensions of the film are maintained.  Films having the same tensile properties along both axes of orientation can be produced by the process of the invention.  Specifications 882,155 and 892,006 are referred to.
Patent GB-821399-A (GB)
Title: A brake assembly
Inventor: FAWICK THOMAS LEVI
IPC: F16D66/02
Filed: 1957-12-30
Abstract: 821,399. Brake wear indicators. FAWICK CORPORATION. Dec. 30,1957, No. 40296/57. Class 103 (1). A brake assembly includes, projecting into the brake cylinder, a push-bar 33, which is adapted to be engaged by the face of a diaphragm-piston 24, 28 after such piston has been moved through a certain distance, the movement of push-bar 33, against the action of spring 37, causing engagement of stop-head 35, with the end of an electric contact spring 43 to close an electric circuit operating the light bulbs 31, 31 of a warning sign 32, an indication there being given that the friction linings have become badly worn.
Patent GB-965681-A (GB)
Title: Improvements in and relating to electric fuses
Inventor: FEENAN JOHN
IPC: H01H69/02
Filed: 1959-11-27
Abstract: 965,681. Making electric cut-outs; rolling. ENGLISH ELECTRIC CO. Ltd. Nov. 18, 1960 [Nov. 27, 1959; Feb. 17, 1960 (2)], Nos. 40404/59, 40405/59, 5553/60 and 5554/60. Headings B3A and B3M. [Also in Division H2] A fuse-element 10 (see Division H2) comprises a ribbon of fusible metal of uniform width having a series of grooves 14 each extending across the ribbon width, and a transverse trough also extending across the ribbon width containing metal 11, e.g. solder, of lower-melting point, capable of alloying with the ribbon metal. The elements are made from sheets of silver, passed between rollers to provide the grooves and trough, and then cut perpendicularly to the grooves and trough into ribbons of the required width after filling the trough with solder.
Patent GB-1439663-A (GB)
Title: Powder coating agents
IPC: C09D5/46
Filed: 1973-08-28
Abstract: 1439663 Powder coating agents BASF AG 28 Aug 1973 [29 Aug 1972] 40461/73 Heading C3P [Also in Division B2] Powder coating agents comprise a mixture of (A) at least one compound having at least two aziridine groups in the molecule; and (B) at least one acrylic resin, polyester or epoxide resin binder which is solid at ambient temperature and contains hydroxyl groups and optionally a minor amount of other groups capable of reacting with aziridine groups (e.g. carboxyl, epoxide, amino or mercapto groups). The agents may also contain such additives as inorganic or organic pigments, e.g. titanium dioxide, fillers, dyes, flow improvers, curing catalysts and other resins. In examples the aziridine compound is hexamethylene-bis-N- ethylenurea, a 1 : 2 adduct of isophorone diisocyanate and ethylenimine, or N,N<SP>1</SP>-bis-2- ethyleniminoethyl oxalamide; and the binder is a styrene/methyl methacrylate/n-butyl acrylate/1,4 - butane diol monoacrylate/acrylic acid copolymer, a styrene/methyl methacrylate/n - butyl acrylate/2 - hydroxypropyl acrylate copolymer, or a styrene/methyl methacrylate/n - butyl acrylate/2 - hydroxypropyl acrylate/acrylic acid copolymer. Coatings may be applied to substrates such as metal (e.g. iron or aluminium), glass, concrete, ceramics, plastics or wood using such methods as electroless deposition, flame spraying, electrostatic powder spray or fluidized bed coating.
Patent GB-995482-A (GB)
Title: Process for the production of aliphatic diamines
IPC: C07C209/52
Filed: 1963-10-15
Abstract: Aliphatic diamines of the formula H2N-(CH2)n-CH2(CH2)n-NH2 are prepared by reacting Schiff's bases of aliphatic diaminoketones of the formula <FORM:0995482/C2/1> wherein n is an integer from 3 to 7, with hydrazine or semi-carbazide in the presence of strong bases at 100 DEG  to 350 DEG  C. The hydrazine may be used in pure form or as a concentrated aqueous solution.  Specified bases are alkali and alkaline earth metal hydroxides and alcoholates, and alkaline earth metal oxides. The example describes the preparation of 1,11-diamino-undecane and its dihydrochloride and dibenzoyl derivative.