baber/WOPTO huggingface dataset:
Patent GB-1072184-A (GB)
Title: Hydro-electric generating station
Inventor: LAUBE GOTTFRIED
IPC: F03B13/06
Filed: 1964-09-29
Abstract: 1,072,184. Power plant. ENERGIEPROJEKTIERUNG VEB. Sept. 29, 1964, No.39679/64. Heading F1Q. In an hydraulic storage plant comprising a number of reversible pump turbines (i.e. hydraulic machines capable of operating as pumps or as turbines) associated with motor generators and a number of pure turbines associated with generators, the pump turbines are designed for optimum efficiency in pump operation and relatively low efficiency in turbine operation, the pure turbines are designed for optimum efficiency under full load, and the pump turbines are normally operated as pumps and used in alternation with the pure turbines, while the pump turbines are only operated as turbines in peak power requirement periods. Each pump turbine is provided with a starting device for running it up to the synchronization speed for pump operation. The starting devices may be hydraulic, or the synchronous motor generator of each pump turbine may be modified to facilitate asynchronous motor starting. In operation, the pump turbines are firstly run up for no-load pump operation with motor drive, and then subjected to full load. The pure turbines are then run up under no load conditions and synchronized, whereafter they rotate either in stand-by or phase-shifting (i.e. power factor improvement) operation. To change over to turbine operation, the pure turbines are run under full load whilst the pump turbines are stopped and run up for no-load turbine operation before being synchronized, whereafter they rotate in phase shifting operation or under noload conditions. They can be switched into turbine operation in peak load periods. To change back to pump operation, the starting devices are used to brake the pump turbines from turbine operation and run them up for no-load pump operation whereafter the above sequence of operations can be repeated.
Patent GB-1163582-A (GB)
Title: Perfluoroheterocyclic aromatic compounds
Inventor: CHAMBERS RICHARD DICKINSON
IPC: C07D241/18
Filed: 1966-05-04
Abstract: 1,163,582. Fluoro-heterocyclic aromatic compounds. IMPERIAL SMELTING CORP. (N.S.C.) Ltd. 3 Aug., 1967 [4 May, 1966; 6 Sept., 1966], Nos. 19625/66 and 39731/66. Heading C2C. The invention comprises novel compounds of the general formula C 4 N 2 Y 4  where the 4 carbon and 2 nitrogen atoms form a single pyrazine or pyridazine ring and each Y is Cl, F, OH, methoxy, phenylthio, azido or amino and at least one and not more than 3 of the 4 Y's is F, each Y being directly attached to a C atom. The compounds having Y = Cl or F are prepared by treating the tetrachloroheterocyclic compound with a dry alkali metal fluoride at an elevated temperature and further compounds are prepared from these products by nucleophilic substitution. In the examples the following new compounds are prepared: 2-chloro- 3,5,6 - trifluoropyrazine, dichloro - difluoropyrazine, 2 - amino - 3,5,6 - trifluoropyrazine, bis(phenylthio)difluoropyrazine,diazidodifluoropyrazine 4 - amino - 3,5,6 - trifluoropyridazine, trifluoropyridazine methoxide, 3-hydroxy-4,5,6- trifluoropyridazine; 3,6 - dimethoxy - 4,5 - difluoropyridazine and 3,6 - difluoro - 4,5 - bis- (phenylthio)-pyridazine. The starting materials tetrachloropyrazine and tetrachlwopyridazine were obtained by the action of PCl 5  on 2-chloropyrazine and 3,6- dichloropyridazine respectively.
Patent GB-346339-A (GB)
Title: Improvements in or relating to the manufacture of films containing cellulose acetate
IPC: C08K5/523
Filed: 1929-12-30
Abstract: Cellulose acetate films, particularly photographic films, are made from compositions containing, as plasticizer, one or more mixed uryl phosphoric acid esters containing a single naphthyl radide, for example, mono-beta-naphthyl diphenyl phosphate, mono-beta-naphthyl di-meta-cresyl phosphate, and beta-naphthyl phenyl meta-cresyl phosphate.  These phosphates are viscous oils which do not solidify over a wide range of temperature, and do not evaporate or solidify during the manufacture of the film; films containing them also exhibit improved adhesion for gelatine emulsions, together with reduced inflammability.  The compositions may also contain other added agents, solvents, &c. including those mentioned in Specification 279,139, [Class 2 (ii), Cellulose &c.]. An example of a suitable composition consists of cellulose acetate, mono-beta-naphthyl diphenyl phosphate, mono-beta-naphthyl dicresyl phosphate, tricresyl phosphate, chlorinated hydrocarbons such as heptachlorpropane, an antacid and resorcinyl diacetate. The films may be produced in apparatus of the type described in Specifications 281,803, 287,635 and 301,439, [all in Class 2 (ii), Cellulose &c.]. Specification 203,820, [Class 2 (iii), Dyes &c.], also is referred to.  In the Provisional Specification reference is made to the use of mono-phenyl di-beta-naphthyl phosphate.ALSO:Mixed aryl phosphoric acid esters containing a single naphthyl radicle are used as plasticizers in cellulose acetate compositions.  Examples of such esters are mono-beta-naphthyl diphenyl phosphate, mono-beta-naphthyl di-meta-cresyl phosphate and beta-naphthyl phenyl meta-cresyl phosphate.  The compositions may also contain other added agents, solvents, &c. including those mentioned in Specification 279,139, [Class 70, Indiarubber &c.]. An example of a suitable composition consists of cellulose acetate, mono-beta-naphthyl diphenyl phosphate, mono-beta-naphthyl dicresyl phosphate, tricresyl phosphate, chlorinated hydrocarbons such as heptachlorpropane, an antacid, and resorcinyl diacetate.  In the Provisional Specification reference is made to the use of mono-phenyl di-beta-naphthyl phosphate.
Patent GB-1387965-A (GB)
Title: Process for the production of the antibiotic cephemycin
IPC: A61K35/74
Filed: 1973-08-24
Abstract: 1387965 Preparing cephemimycin SANKYO CO Ltd 24 Aug 1973 [31 Aug 1972] 40170/73 Heading C2C The antibiotic cephemimycin having the formula is produced by cultivating Streptomyces jumonjinensis or a cephemimycin-producing mutant thereof, in a nutrient medium.
Patent GB-1286736-A (GB)
Title: A pressure chamber and method and means for closing an opening in the pressure chamber
IPC: B60K15/04
Filed: 1970-08-20
Abstract: 1286736 Pressuredoors INGERSOLL-RAND CO 20 Aug 1970 [15 Sept 1969] 40180/70 Heading F2P A pressure chamber 14 is closed by a door 18, overlying a chamber opening, having a rod 36 thrusting against a surface of the chamber pushing the door against its seating. The rod 36 threadedly mates with the door 18 and bears in a conical surface 32 in the chamber. The rod head is recessed in the door 18 to present a smooth outer profile and is sealed in the door aperture by an O-ring 50. The door 18 has a gasket 26 between the overlying door and opening surfaces. The door 18 has external finger holes to aid insertion into the opening prior to closing.
Patent GB-1459115-A (GB)
Title: Dual sash window assembly with weathertight sealing means
IPC: E06B3/46
Filed: 1974-09-17
Abstract: 1459115 Sliding windows YOSHIDA KOGYO KK 17 Sept 1974 40518/74 Heading E1J A window has two sashes 11 sliding horizontally in a main frame 10. Each of the top 15, bottom 16, and one vertical 17 frame members of the sash has an outwardly facing channel 18 in which is a roller 22 mounted on a vertical spindle 21. On closing the window, the rollers 22 contact wedge shaped flanges 24a, 24b attached to the main frame 10 causing the sash to move laterally bringing the flanges 18 into contact with the sealing strips 19. The two sashes may have interengaging flanges (Fig. 7 not shown) on the overlapping vertical members.
Patent GB-1372778-A (GB)
Title: Apparatus for the manufacture of bags
IPC: B31B105/00
Filed: 1972-09-01
Abstract: 1372778 Making bags and lined boxes; seaming non-metallic sheet material SIG SCHWEIZERISCHE INDUSTRIE GES 1 Sept 1972 [1 Sept 1971] 40531/72 Headings B5D and B5K A bag making apparatus comprises a hollow axially displaceable mandrel 4, tongs 11 which are reciprocable in the axial direction of the mandrel and can grip rim folds 60, formed along two opposed edge regions of the bag bottom, to draw a tube 6 of weldable or sealable material over the mandrel, welding or sealing jaws 33, 34 for producing a bottom seam in each bag and which carry projections 64 for forming, in cooperation with chamfered bottom folding edges of the mandrel, the rim folds 60, and inserts 14 which are slidably mounted in cut-outs adjacent the bottom of the mandrel and co-operate with pivotable pressure members 30 to grip the tube and disengage the seamed bottom of the tube from the mandrel. In operation a preformed tube or a web 2 which has been tubed and longitudinally sealed or welded by a jaw 8, is drawn over the mandrel by the tongs 11 pulling a bottom sealed or weld bag length of the tube down to a table and if desired into a carton 48 or a sleeve. Opposed sides of the tube are then spread apart or tucked in by spreader arms 22 or gusset folders (69, Fig. 11), respectively, and the welding or sealing jaws move together to form the next bottom seam. The mandrel then moves into contact with the closed welding or sealing jaws 33, 34, Fig. 7, to form the opposed rim folds 60. In the embodiment utilizing spreader arms, the spreading and welding or sealing operations produce ears, comprising double layers of tube material; at the ends of the seam, and the layers of each ear are welded or sealed together by respective vertically reciprocable pressers 44 co-operating with the welding or sealing jaws. During return movement of the mandrel, the bottom region of the tube is gripped between the slidable inserts 14 and the pressure members. After separation of the sealing jaws 33, 34 and disengagement of the pressure members 30, the rim folds 60 are gripped by the tongs 11 and when a bag length of tube has been drawn from the mandrel 14, the tube is cut by a knife 39 and co-operating backup member 43. The welding or sealing jaws 33, 34 are complementarily shaped to produce a kinked seam.
Patent GB-1480695-A (GB)
Title: Flameproofed polymer compositions
IPC: C08L77/00
Filed: 1975-10-03
Abstract: 1480695 Phosphonic acids HOECHST AG 3 Oct 1975 [7 Oct 1974 14 March 1975] 40561/75 Heading C2P [Also in Division C3] is made (Example 1) by heating a mixture of 2 - methyl - 2,5 - dioxo - 1,2 - oxaphospholane and 2,4,6 - tribromoaniline to 180-200‹ C., and recovering. Also disclosed are the Na and Zn salts of compound IV, and analogous compounds obtained by substituting dibutylamine for tribromoaniline. Use.-Flame - retardant in polymer compositions.
Patent GB-949321-A (GB)
Title: Improvements in or relating to snap-action electric switches
Inventor: LEIPNITZ FRITZ
IPC: H01H19/62
Filed: 1960-11-25
Abstract: 949,321. Snap-action switches. W. PREH, and A. PREH, [trading as PREH ELEKTROFEINMECHANISCHE WERKE J. PREH NACHFOLGER]. Nov. 25, 1960, No. 40691/60. Heading H2B. A snap-action switch which may be combined with a variable resistor comprises an operating member 4 connected by a torsion spring 5 to a co-pivotal member 3 which actuates blade contacts. Member 3 has two pairs of studs 6, 7 which move blade springs 8, 9 into and out of engagement with fixed contacts 12, 13. A further, normally open contact spring 15 is controlled by a cam 16 carried by member 3 and co-operates with fixed contact 17.
Patent GB-1302989-A (GB)
IPC: H01J31/38
Filed: 1971-09-01
Abstract: 1302989 Television camera tubes PHILIPS ELECTRONIC & ASSOCIATED INDUST. RIES Ltd 1 Sept 1971 [4 Sept 1970] 40748/71 Heading H1D The length of a television camera tube of the vidicon type is reduced by using a lens (of which only half is shown in Fig. 2) comprising a cylindrical electrode 14 disposed between two conical electrodes 13 and 15. Electrode 13 may also function as the anode of the electron gun and is preferably provided with a beam-limiting aperture comprising two cylindrical parts 18 and 19, the latter having a larger diameter. Similarly the electrode 15 is preferably also provided with a beam limiting aperture comprising two cylindrical parts 20 and 21. Preferably the ratio of the potentials on electrodes 15 and 13 is at least 4. References 22-29 illustrate equipotential lines when potentials of 50, 25 and 500 volts are applied to electrodes 13-15, and 30-35 show various electron trajectories.
Patent GB-927408-A (GB)
Title: Improvements in and relating to aircraft undercarriages
Inventor: PINSKER WERNER JOSEPH GEORG
IPC: B64C25/58
Filed: 1960-11-28
Abstract: 927,408. Aircraft alighting gear. MINISTER OF AVIATION. Nov. 24, 1961 [Nov. 28, 1960], No. 40797/60. Class 4. An aircraft has landing impact absorber means disposed behind the undercarriage by which the aircraft is supported when taxiing, to absorb a substantial proportion of the landing impact energy before the undercarriage comes into operation. Fig. 2 shows an aircraft, e.g. a tailless aircraft with low aspect ratio wings, which touches down at a high angle of incidence, having a nose wheel 12, a main undercarriage 13, and a rail skid comprising an arm 15 on a pivot 16 and a rubber sole 17 pivoted to the arm at 19 and biased nose up by spring 20, Fig. 3. The arm is retractable about pivot 16 by a jack 25, and a shock absorber 21 is provided. The aircraft touches down first on the skid, ground level being shown by the line L1-L1. A substantial part of the impact shock is absorbed through the skid before the main undercarriage touches down, the skid then being in the position shown in broken lines, and the ground level by line U-U. A second skid 17a may be provided, touching down after the first skid, but before the main undercarriage, when the ground level is shown by line L2-L2. The undercarriage 13 can thus be shorter and designed for lesser loads. Preferably the skid when fully extended does not contact the ground during taxiing on the main and nose wheels. The skid may extend laterally, or two skids may be laterally separated, to reduce excessive bank at touchdown. The skid may be placed in an intermediate position to act as an emergency bumper during take-off.
Patent GB-1276090-A (GB)
Title: Protective covers for seat belts
Inventor: WOODWARD WILLIAM THOMAS
IPC: B60R22/00
Filed: 1969-09-03
Abstract: 1276090 Seat belts W T WOODWARD 21 April 1970 [3 Sept 1969] 40798/68 Heading A3V A protective cover for a motor vehicle seat belt comprises a stiffening member attached to and extending longitudinally and centrally along a laterally extendible band which has means along its longitudinal edges for securing these edges together when, in use, the band is closed around the belt. The band 10 is preferably formed of plastics or leather and has two elastic strips 14 one on each side of the rigid plastics stiffening member 12 which is secured by rivets or staples (15) to the inside of the band (i.e. the side which contacts the belt) and serves to prevent crushing of the belt. The stiffener may have a ladder configuration or be perforated to be flexible longitudinally. The band edges are secured together by a slide fastener 16 or press studs. An eyelet (24) enabling the cover to be hung-up when not being worn is attached to one end of the cover by a rivet passing through an elongated hole (28) in a shank on the eyelet so that when being worn the eyelet is retracted into the end of the cover.
Patent GB-903826-A (GB)
Title: Improvements in or relating to methods of injecting fluent material into and withdrawing fluent material from sub-soil
IPC: E02D5/36
Filed: 1959-12-01
Abstract: 903,826. Earth-boring apparatus; soilstabilizing apparatus. WIMPEY & CO. Ltd., GEORGE, SCOTT, A. C., and CALDERWOOD W. Dec. 1, 1960 [Dec. 1, 1959], No. 40803/59. Classes 68 (1) and 85. Mounted in the lower end of an earth - boring auger formed by one or more coupled tubular sections 10 having external flights 11 extending the length of each section is is either a nose plug 35 that can be withdrawn up through the auger or a nose plug with a passage or passages extending therethrough. Thus when the auger has been entered into the ground either a soil-consolidating fluid can be injected into the sub-soil or fluid can be withdrawn from the subsoil through the sections 10 or through a pipe that is entered into the auger subsequent to the removal of the nose plug therefrom or is connected to the apertured plug. A boring bit 38 may be mounted in the lower end of the plug.
Patent GB-994386-A (GB)
Title: Unsaturated polyesters and vinyl chloride polymers modified therewith
IPC: C08G63/676
Filed: 1962-10-29
Abstract: The invention comprises unsaturated polyesters which are obtained from at least one glycol and a mixture of carboxylic acids, are free from terminal carboxyl and hydroxy groups, have an average molecular weight between 300 and 4000 and contain 1 to 5 maleate or fumarate groups per molecule.  The polyesters may be obtained by reacting (a) a saturated aliphatic glycol containing 2 to 6 carbon atoms, (b) a saturated aliphatic dicarboxylic acid containing 4 to 10 carbon atoms, phthalic acid, or phthalic anhydride, (c) a monocarboxylic acid or monohydroxy alcohol to eliminate terminal carboxyl or hydroxyl groups, and (d) one or more of maleic acid, fumaric acid or maleic anhydride. The polyester may be mixed with a vinyl chloride polymer or copolymer, e.g. in an amount of 3 to 100% of polyester based on the weight of vinyl chloride polymer, together with a peroxide catalyst, and heated to obtain a graft polymer; basic lead salts, titanium dioxide, calcium silicate, carbon black and asbestos, may be included in the mixture.  In examples unsaturated polyesters are prepared from pelargonic acid, adipic acid, fumaric acid, maleic anhydride, neopentyl glycol, diethylene glycol, mono-(di-N-butyl)adipamide and benzyl alcohol, with p-toluene sulphonic acid as esterification catalyst and sodium tripolyphosphate as degradation inhibitor; the polyesters are reacted with polyvinyl chloride and a vinyl-chloride-vinyl acetate copolymer, and compositions prepared containing diisodecyl phthalate, basic lead silicate sulphate, calcium carbonate, clay, titanium dioxide, paraffin wax, epoxidized soybean oil, dioctyl phthalate, stearic acid, lead stearate and a barium-cadmium-zincphosphite stabilizer.
Patent GB-411251-A (GB)
Abstract: 411,251. Stethoscopes. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and MASON, C. A., 23, Glasgow Street, Northampton. March 6, 1933, No. 6771. [Class 40 (iv).] A stethoscope comprises a moving reed microphone 1 mounted in resilient material 2 in an iron screening box 3, the reed 4 being connected directly or through a resilient support 5 to a rod 6 carrying a disc 7 of heat insulating material adapted to be brought into contact with the patient's body. The disc is surrounded by an outwardly spring-pressed heat insulating cylinder 8 sliding in a metal cylinder 9 and adapted when pressed in by application of the device to the human body to close a pair of contacts 12 located in the filament circuit of an amplifier in the circuit of which is connected a pair of head-phones or a loud-speaker.
Patent GB-1432570-A (GB)
Title: Belting
IPC: F16G1/10
Filed: 1972-09-05
Abstract: 1432570 Laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Aug 1973 [5 Sept 1972] 41152/72 Heading B5N Belting material, e.g. for use for conveyer belting or drive belts, comprises rubber, reinforced with continuous filament extending along the length of the belt, and provided with a protective backing of non-woven fabric having a thickness below 0À5 mm., a breaking strength of 15-30 kp./5 cm., an extensibility at break greater than 40% and a shrinkage of less than 2% at a temperature of 170 C. The non-woven fabric, which may be applied to all or part of the surface of the belt, may be based on polyester or polyamide fibre and may be of single component fibres bonded together by means of a solvent or bicomponent fibres of two different synthetic materials extending along the length of the fibre, the lower melting of the materials forming at least a part of the outer surface of the fibre and the fibres being bonded by the application of heat. The non-woven fabric may be produced from a thicker fabric by splitting it into sheets of the desired thickness. The non-woven fabric may be bonded to the rubber material by solvent bonding, by the use of an adhesive or by heat and pressure bonding.
Patent GB-1155077-A (GB)
Title: Speed Reducer
IPC: F16H57/02
Filed: 1967-09-11
Abstract: 1,155,077. Toothed gearing. RELIANCE ELECTRIC & ENG. CO. 11 Sept., 1967 [20 Oct., 1966], No. 41345/67. Heading F2Q. Reduction gearing for driving an output shaft 16 from an input shaft 14 comprises gears 24, 26, 36, 38 rotatably mounted in a housing 12 and transmitting the drive from input shaft 14 to a hub 42, and a bearing unit 70 having a shaft 80 disposed within the bore of the hub 42 and splined thereto, the shaft 80 extending from the bore of the hub 42 and supporting the output shaft 16 whilst being supported by a radial bearing 94 and a thrust bearing 92 mounted within a casing 74 secured to the housing 12. A key 86 connects output shaft 16 to the shaft 80. The housing 12 is in two sections 50, 50<SP>1</SP>, secured together by bolts 52, access to the bearings and shafts being provided by removable cover plates 54, 56, 58.
Patent GB-889380-A (GB)
Title: Aqueous plastic dispersions containing corrosion inhibitors and hardening agents
Inventor: SCHMOETZER GUENTER
IPC: C09D133/06
Filed: 1960-12-02
Abstract: An aqueous dispersion of a synthetic resinous copolymer containing an olefinic double linkage contains also 0,05 to 6% by weight of the polymer of a thioether carboxylic acid and/or a water-soluble salt thereof.  Specified monomers are butadiene, isoprene, dimethylbutadiene, chloroprene, diallyl phthalate, allyl acrylate, beta-methallyl methacrylate, diallyl maleate or fumarate, butane-diol diacrylate, ethylene glycol dimethacrylate, and beta-vinylhydroxyethyl methacrylate.  Specified comonomers are styrene, vinyl toluenes, alpha-methylstyrene, the methyl, ethyl, butyl, decyl and cyclohexyl esters of acrylic and methacrylic acids, acrylonitrile, acrylamide, methacrylamide, vinyl acetate, propionate and stearate, vinyl pyrrolidone, vinyl carbazole and vinyl imidazoles, vinyl and vinylidene chlorides, vinyl ethyl and vinyl isobutyl ethers, and vinyl methyl ketone. Specified acids are S-ethyl-, S-propyl-, S-butyl-, S-(betaphenylethyl)-thioglycolic acid, thiodiglycolic acid, thiodibutyric acids, thiodi caprylic and caproic acids, beta-carboxy-beta, beta1-thiodipropionic acid, beta-beta1-dicarboxy-beta-beta1-thiodipropionic acid, ethylmercaptosuccinic acid, S-phenylthioglycolic acid, alpha-phenyl-mercaptopropionic acid, 2-ethyl-mercaptobenzoic acid, diphenylsulphide-2,21-dicarboxylic acid, 4-(cyclohexylmercapto)-benzoic acid, S-(2-benzimidazolyl)-thiodiglycolic acid, ethylene-bis-thioglycolic acid and benzene-1,2-thioglycolic acid. The acids may be added as the ammonium (preferred), alkali, trimethylammonium or pyridinium salts. There may also be present 0,05 to 4%, on the polymer, of monobasic or dibasic carboxylic acids, e.g. formic acetic, propionic, succinic, adipic, maleic, cumaric, crotonic, benzoic or phthalic acids.