baber/WOPTO huggingface dataset:
Patent GB-779954-A (GB)
Title: An optical compensator for continuous feed kinematograph apparatus, especially for television transmission
IPC: H04N5/257
Filed: 1955-01-19
Abstract: 779,954. Automatic position control systems. GES. ZUR FORDERUNG DER FORSCHUNG AN DER EIDG. TECHN. HOCHSCHULE. Jan. 19, 1955 [Jan. 19, 1954], No. 1684/55. Class 38 (4). [Also in Groups XX and XL (b)] An optical compensator for continuous feed kinematograph apparatus comprises two optical systems rendered operative alternately and including members moved to provide optical compensation of successive film frames, control spots being provided on the film in association with the respective frames and means being provided to detect any movement of the images of the spots and to correct the movements of the movable optical members accordingly. In the television film scanning apparatus shown a raster on a cathode-ray tube 2 is imaged on a film 1 by half objectives 3, 4 and the transmitted light concentrated on a photo cathode 8 by a condenser 7. The lenses are actuated by devices 6 comprising magnets 6b and moving coils 6a energized by amplifiers 15. A shutter disc or cylinder having apertures indicated at 5 obscures the light path through each lens during its return stroke. The shutter apertures are shaped to provide a uniform total light transmission. A source, not shown, directs a light beam through the film perforations, acting as the control spots, to produce images maintained by the lenses 3, 4, if they are moving correctly, on a diaphragm 9. If the images move up or down from the diaphragm the light strikes one or other of the inclined mirrors 10a and is deflected on to one or the other of the pairs of inclined mirrors 17 and thence to photo-electric cells 11, 12, 13, 14. An intermediate lens 10 images the dividing line between the objectives 3, 4 on to the intersection of the mirrors 17 so that if the image produced by the lens 3 moves up or down off the diaphragm 9 the light falls on the photo-cell 11 or the cell 13, the two cells being connected to control the one of the amplifiers 15 which provides the signal to operate the driving device 6 for the lens 3. The cells 12, 14 are similarly associated with the lens 4. The light used for producing the control images may be spectrally different from that for the film scanning and the shutter 5 may be transparent to it.
Patent GB-764428-A (GB)
Title: Improvements in or relating to radio broadcast receivers
Inventor: BREWSTER ARTHUR EDWARD
IPC: H03F1/36
Filed: 1955-01-20
Abstract: 764,428. Transistor gain and selectivity control circuits. STANDARD TELEPHONES & CABLES, Ltd. Jan. 20, 1955, No. 1720/55. Classes 40(5) and 40(6) The impedance of a transistor 20 shunting the coupling 9 between two stages 1, 2 is varied to control the gain of an amplifier in a radio receiver, the variation in damping also affecting the selectivity. The controlled stage may be a transistor or discharge tube amplifier. The I.F. signal is amplified in transistors 1 and 2 and applied to transistors 3, 4 in push-pull to cause each to conduct on alternate halfcycles of carrier. The modulation signal is fed out over filter 16 while the pulses of current cause the emitters and base to go more negative with increased carrier input. The transistor 20 is normally biased off by battery 24 which gives a delay to the A.G.C., but when this voltage is exceeded, the base of transistor 20 becomes negative with respect to the emitter, thereby lowering the emitter-collector impedance. The resistor 13 is chosen to give the desired band-width to the coupling when the transistor 20 is presenting its high impedance. The resistor 10 limits the collector current of transistor 20 when in its low impedance condition, the low collector potential of transistor 1 introducing little distortion since the transistor 20 has such a low impedance. In a modification, Fig. 2 (not shown) the capacitor 12 is tapped on to a parallel tuned circuit replacing inductor 9.
Patent GB-157975-A (GB)
Title: Products obtained from rubber containing latex
IPC: C08C1/12
Filed: 1921-01-11
Abstract: 157,975. Honkinson, E. Jan. 16, 1920, [Convention date]. Latex, coagulating and treating. - Latex is sprayed in a current of a drying medium (air, carbon dioxide, &c.) which may be heated, e.g. to 200‹ F. to obtain a product containing all the solid constituents of the latex, and the white cheeselike product is compressed. Premature coagulation is prevented by the addition of ammonia or the like. Vulcanizing agents as sulphur, nitrocompounds, sulphur compounds, and fillers, e.g. carbon black, zinc oxide, &c., may be added to the latex or they may be introduced into the spraying chamber with the latex. When additions are made to the latex, the preservative added is preferably saponin, glycerine or glue in the proportion of about 0.1 per cent. The mixing thus obtained is more homogeneous, does not require drying, mastication is rendered unnecessary and after vulcanization by the usual methods, a product of greater tensile strength is obtained. Specification 157,978 is referred to.
Patent GB-1532442-A (GB)
Title: Propulsion and steering of ships with propellers housed in fixed nozzles
IPC: B63H5/15
Filed: 1976-01-14
Abstract: 1532442 Propulsion nozzle HYDROCONIC Ltd 14 Jan 1976 [15 Jan 1975] 1775/75 Heading B7V A ship's propulsion nozzle 11 has an annular slat 10, 15 positioned in front of its leading edge 13 to reduce flow separation within the nozzle. The hydrofoil section of the slat may have a chord of between 7% and 11% (preferably 8% or 11%) of the chord length of the hydrofoil section of the nozzle and the slat may be positioned so that its trailing edge 12, lies at a distance equal to between 10% and 20% of the chord length of the nozzle section in front of the leading edge of the nozzle and at a distance equal to between 2% and 15% of the chord length of the nozzle section from a line drawn tangential to the periphery 14 of the nozzle section. The slat may be supported independently of the nozzle and may be rotatable about a vertical axis to enable asymmetric thrust to be produced for steering purposes and a further slat may be provided behind the nozzle exit.
Patent GB-1029752-A (GB)
Title: Improvements in or relating to methods of and apparatus for producing netting of filamentary material having welded joints between intersecting filaments
IPC: B21F27/10
Filed: 1963-01-15
Abstract: 1,029,752. Welding by pressure. W. ROSLER, and J. ROSLER, [trading as DRAHTWERKE ROSLER KOMM.-GES.]. Jan. 15, 1963 [Jan. 24, 1962], No. 1864/63. Heading B3R. [Also in Division D1] In producing netting of filamentary material, filaments are drawn continuously from a rotating bobbin carrier and fed through a guide device to a support where they intersect each other diagonally relatively to the longitudinal direction of the netting and the intersections are welded while on the support. A frame 1, Fig. 1, carries a cage 2 supporting bobbins 3 carrying iron wire and the cage is rotated on a shaft 4 by a motor 59 through gearing. A guide device 6 is carried on arms 7 of the frame 1 and comprises an endless chain 8, Fig. 3 (not shown), carrying tubes 10 through which the filament from the bobbins pass, the chain being driven by the motor 59 through gearing to complete one revolution as the cage 2 completes one revolution. A frame 12 which is movable relatively to the frame 1 carries a water-cooled hollow copper cylinder 13 driven also from the motor 59 and having annular rings 20, Fig. 4 (not shown), of rubber, plastic &c. projecting from its periphery, the rings being provided with diagonal V-shaped recesses to receive the filaments diagonally of the longitudinal direction of netting being produced. The points of intersection of the filament lie between the rings 20 and above endless copper strips 30 which are led into the grooves between the rings from rollers 31 and 32. An upper welding device 14 comprises a series of roller electrodes 33, Fig. 9 (not shown), carried in spring-pressed pivoted holders 38 and connected e.g. in groups of four to the opposite poles of welding transformers 52, the roller electrodes engaging grooves between the rings 20 to weld intersections in alternate grooves. A similar lower welding device 14 welds the other intersections. Welding current is switched on for the short period when the rollers are over the intersections and the finished netting passes over guide rollers 16, 17 to a winding shaft 18. Longitudinal filaments may be provided at the edge and also over the width of the netting where they are welded at the intersections at the time of welding the intersections. Filaments at the edges of the netting may be welded by an additional welding device. In a modification, the chain 8 passing over the wheels 9, Fig. 18 (not shown), serves merely as a driving chain for a filament guide chain 81 running on a guide rail 84 having bores 86 through which the longitudinal filaments are passed. The cylinder 13 may have fingers at its ends having rollers running in guide channels so that the fingers engage the edge filaments to draw them and hence the netting towards the edges of the cylinder.
Patent GB-959338-A (GB)
Title: Process for bottoming leather
IPC: C14C11/00
Filed: 1962-01-19
Abstract: Chrome-tanned hides are treated with an aqueous solution of the condensation product of a polyhydroxyl compound, an aldehyde and a polyisocyanate.  Polyhydroxyl compounds include glycols, saccharides, polyalkylene oxides, polyalcohols and phenols. Aldehydes exemplified are formaldehyde, acetaldehyde, butyraldehyde, acrolein, crotonaldehyde, furfural and glyoxal. Polyisocyanates exemplified are hexamethylene, decamethylene, phenylene toluylene diphenyl methane and naphthalene diisocyanates, 1,7-diisocyanato-4-oxaheptane and 4,41,411-triisocyanato triphenyl phosphate and polymers thereof. Specifications 798,209 and 909,604 and German Specification 889,349 are referred to.
Patent GB-1132621-A (GB)
Title: Process for preparing cephalosporin c antibiotics
IPC: C07D501/46
Filed: 1966-01-17
Abstract: 1,132,621. Preparation of 3-pyridinomethyl cephalosporin compounds. ELI LILLY & CO. 17 Jan., 1966 [5 March, 1965 (2)], No. 2079/66. Heading C2A. 7-Acylamido-3-pyridinomethyl cephalosporanic acids, of formula wherein R is an organic radical, are prepared by reacting pyridine or substituted pyridine with 7-acylamido cephalosporanic acid, in aqueous medium, in the presence of a proportion at least equimolar to the said acid, of thiocyanate or iodide ions, separating the required product in the form of the hydro-thiocyanate or hydroiodide addition salt, and if required, recovering the free acid therefrom. R may be, e.g. hydrogen, alkyl, alkoxy, alkylmercapto, phenyl, phenoxy, phenyl mercapto, thienyl, furyl, benzothienyl, or benzofuryl. The pyridine ring may bear one or more of the following substituents: CH 3 , C 2 H 5 , OH, CF 3 , halo, cyano, carboxy, carbalkoxy, alkanoyl, alkanoyloxy, or wherein R 2  and R 3  are H, CH 3  or C 2 H 5 , or one of R 2  and R 3  may be cycloalkyl. Iodide and thiocyanate may be added as water soluble inorganic or organic salts. The product, as the hydroiodide or hydrothiocyanate addition salt, may be separated by acidification of the reaction mixture. The free acid may be recovered by contacting the salt with a base (organic or inorganic), in solution in an organic solvent or water; the preferred base is a basic form of a liquid anion exchange resin, in methyl isobutyl ketone, which is reacted with the addition salt dissolved in a little water, when the thiocyanate or iodide is removed by the resin to leave the free acid in the aqueous phase. The acid may be finally freed from thiocyanate or iodide by treatment with the acetate form of the exchange resin, when any remaining ions are replaced by acetate.
Patent GB-511345-A (GB)
Title: Improvements in and relating to electric signalling systems
IPC: H04H20/59
Filed: 1939-01-23
Abstract: 511,345. Distributing music &c. WIRED RADIO, Inc. Jan. 23, 1939, No. 2234. Convention date, March 3, 1938. [Class 40 (iv)] In a distributing system comprising a number of transmitters sending different programmes at different carrier frequencies, means are provided for disconnecting the transmitters from their individual modulating sources and connecting them to a common source such as a clockcontrolled gramophone or a microphone e.g. for a ship's captain, building superintendent, fire or police chief, for making special announcements. As shown, the usual multi-programme transmitting arrangements are associated with a power line 25 but when the common modulating source 26 is used, voice-operated relay 29 disconnects the modulators 3 .. 6 from their normal sources 11 ..14 and connects them to source 26. The carrier frequencies are derived from a base frequency source 1 by a harmonic generator 2.
Patent GB-982615-A (GB)
Title: Improvements in or relating to 3-methyl-1,2,4-benzothiadiazine-1,1-dioxide
IPC: C07D285/24
Filed: 1963-01-18
Abstract: 3 - Methyl - 1,2,4 - benzothiadiazine - 1,1-dioxide is prepared by reacting a salt of o-acetylaminobenzenesulphonic acid, e.g. a salt with an alkali metal or an organic base, with phosphorus pentachloride, preferably in an inert diluent at 75-85 DEG  C. and treating the product with ammonia.  The compound is used pharmaceutically as a hypotensive agent (see Division A5).ALSO:Pharmaceutical preparations having hypotensive activity comprise 3-methyl-1,2,4-benzothiadiazine-1,1-dioxide (see Division C2) and a carrier, and optionally contain one or more additional substances chosen from rauwolfia alkaloids and barbiturates. Suitably the preparations are used orally and may take the form of tablets, pills, capsules, emulsions or suspensions.
Patent GB-675321-A (GB)
Title: An improved method of producing unburned pencils
IPC: C09D13/00
Filed: 1950-01-30
Abstract: 675,321. Pencil leads. KREUTZER, R., and WiSSMULLER, G. W., (trading as STAEDTLER MARS-BLEISTIFTFABRIK, J. S.). Jan. 30, 1950 [Oct. 14, 1949], No. 2341/50. Class 146 (iii). An unburned pencil lead for indelible writing and comprising writing material, filling material, smoothing material and binding material, has colloidal lampblack as the writing material to which is added a wetting agent or agents. The wetting agents cause the lead to penetrate the paper by absorption. In addition to the lampblack, colloidal graphite may be included in the writing material. The lead mass may have mixed therein a copying dyestuff, e.g, methylene blue or Sudan dye, in the case of leads intended for copying. For the wetting agents, use may be made of materials, the polar groups of which will lower the surface tension at the point of contact between the lampblack and the paper, e.g. hydroxyl, carboxyl and sulpho groups. Certain hydrocarbon compounds such as glycerine, emulphor and that known under the Registered Trade Mark " Vaseline " are also suitable. The following examples of compositions are given.- (1) Colloidal lampblack (15 parts), colloidal graphite (15 parts), talcum (30 parts), calcium stearate (20 parts), glycerine (10 parts), emulphor (5 parts) and gum tragacanth (20 parts). (2) Colloidal lampblack (15 parts), colloidal graphite (15 parts), talcum (20 parts), calcium stearate (40 parts), glycerine (15 parts), benzol cellulose (40 parts), and vinyl acetate (55 parts). (3) Colloidal lampblack (15 parts), colloidal graphite (15 parts), talcum (35 parts), calcium stearate (35 parts), " Vaseline " (15 parts) and gum tragacanth (20 parts).
Patent GB-1422982-A (GB)
Title: Gas turbine engine
IPC: F23R3/38
Filed: 1973-01-02
Abstract: 1422982 Gas turbine engines - combustion equipment EATON CORP 2 Jan 1973 [3 Jan 1972] 2390/75 Divided out of 1422981 Headings F1G and F1L The invention relates to a gas turbine engine comprising a compressor and a radial flow turbine mounted on a common shaft, a combustion section being disposed between the compressor and the turbine. The combustion section is of annular form and comprises a liner formed of two radially extending wall portions, one disposed adjacent the compressor and the other adjacent the turbine. The two liners are formed with axially extending portions at their outer peripheries which together define an annular axially extending combustion gas outlet from the combustion chamber. A series of radially extending tubes extend across the annular gas outlet and air from the compressor passes through the tubes into the space between the one liner and the turbine, then passing through openings in the liner into the combustion space. The air passing through the tubes is thereby preheated and the combustion gases thereby cooled. The invention is described with reference to the embodiment described in the Parent Specification.
Patent GB-398711-A (GB)
Title: Improvements in and relating to bags, especially for containing hygroscopic materials
IPC: B65D30/00
Filed: 1933-01-25
Abstract: 398,711. Paper bags &c. NORSK HYDRO-ELEKTRISK KVAELSTOFAKTIESELSKAB, 7, Solligaten, Oslo, Norway. Jan. 25, 1933, No. 2419. Convention date, Feb. 20, 1932. [Class 94 (ii).] A bag, especially suitable for containing hygroscopic materials and manufactured from a long ribbon of paper, wound upon itself into a plurality of layers, one on top of another, is characterized in that the individual layers of the bag are stuck to each other at the ends of the long tube 5, 6 by means of an adhesive substance, preferably rubber latex, and that an impregnated strip of jute material 7, 8 is affixed under pressure to the ends of the bag tube, against its outer surfaces. The jute strip may be covered with paper also impregnated. A bag filling aperture, subsequently covered by a jute strip 10, may be provided at a corner, or it may be positioned in one side. Lifting ears 9, bifurcated for half their length may be stuck to both sides of the bag. Impregnating materials used may be oils, fats, resin, indiarubber, asphalt, bitumen, tar, &c., preferably remaining plastic to -20‹ C. Crepe paper may be used for the bag strip and in the multiply form the layers may be arranged crosswise as in ply-wood. Specification 154,570, [Class 95, Paints &c.], is referred to.
Patent GB-1188871-A (GB)
Title: Solid Compositions Containing Acid Fruit Juices.
Inventor: CAMINITI PIETRO
IPC: A23L2/08
Filed: 1968-01-16
Abstract: 1,188,871. Acid fruit juice compositions. SOLAGRUM S.p.A. 16 Jan., 1968, No. 2424/68. Heading A2B. A stable, highly lyophilic, either solid and loose or pasty composition, comprises an acid fruit juice of 60-70 degrees Brix absorbed on a monosaccharide, disaccharide, polyalcohol, or starch support, the support constituting 70-85 wt. per cent. of the composition. Suitable carbohydrates include mono and disaccharides, such as glucose and sucrose, polyalcohols, such as mannitol and sorbitol, and starch. Citrus fruits are preferred, at a pH of 4.5-6, which pH may be achieved by the addition of substances such as calcium or magnesium carbonate, or sodium bicarbonate. Optional ingredients include essential oils, sorbic and citric acids, alkali metal and alkaline earth metal carbonates and bicarbonates, sodium chloride, sodium glutamate, and sodium cyclamate. The product may be dried in a warm air stream.
Patent GB-152374-A (GB)
Title: Improvements in and relating to the process of distilling or recovering volatile inflammable liquid solvents
IPC: B29C67/24
Filed: 1919-01-31
Abstract: 152,374. Lewis, W. K.., and Green, W. Jan. 31, 1919. Volatile solvents, recovering.-Clean flue gas is used to vaporize the solvent such as naphtha, benzol or gasolene from freshly coated fabrics; the vapour is separated by condensation, as by cooling, pressure, absorption, or a combination. In the apparatus shown in Fig. 1, the freshly rubberized fabric 3 is drawn through the chamber 2 in countercurrent against a stream of flue gas forced in by a fan 5, and the vapour is condensed in a cooler 11 and under pressure of a pump 15 in a second cooler 18, the flue gas escaping through the relief valve 19 for re-use if desired. The chamber 2 may be heated by coils 7, and the floor is inclined and openings 8 made in the baffles 6 to run any condensed solvent to an outlet 9. In the apparatus shown in Fig. 2, flue gas from the pipe 60 is forced by a fan 9 through a heater 11 into the heated drying-chamber 1, and the gas and vapour are withdrawn by a fan 6 and sent through a cooler and a scrubber 8 in which the vapour is absorbed by a descending stream of heavy hydrocarbon oil from the pipe 50; the flue gas passes on through a pipe 12 and is circuited again. The solution of solvent in heavy oil is sent by a pump 15 through a heat interchanger 25, a heater 18 and a pipe 17 to a still 16 through which the heavy oil passes to the pipe 24, pump P, heat interchanger 25, cooler 26 and pipe 50 to the scrubber 8, being so circuited continuously. The solvent is vaporized under reduced pressure by heated coils 20 in the perforated and staggered pans 21 and by steam or other inert gas or vapour admitted by a pipe 22; the vapour is drawn through a condenser 35 to separate any heavy oil carried over, and then through a heater 32 to a vacuum pump 29, heated by a steam jacket 52 to prevent any condensation, and on to a condenser 39, and if necessary by a vacuum pump 28 to a second condenser 43; any uncondensed vapour or gas exhausts through a pipe 45. Air or other non- condensable gas sufficient to reduce the saturation of the solvent vapour below condensation point at the temperature of the pump 29 may be admitted through a pipe 31.
Patent GB-509789-A (GB)
Title: Improvements in or relating to garages for toy vehicles
IPC: A63H17/44
Filed: 1938-01-26
Abstract: 509,789. Toys. MULLER, H. Jan. 26, 1938, No. 2496. [Class 132 (iii)] A garage for toy vehicles has winged doors closed by the running of a toy vehicle against a lever in the garage and connected directly or indirectly with the doors, the doors being able to be opened by devices arranged outside of the garage. A vehicle running into the garage strikes the lever 4, pulling back the slide 3 which closes the doors through links pivoted at 22, 23, 24, 25. A nose piece 21 of a latch 18 drops to lock the slide 3. A pull on the cord 9 rotates the lever 10 against spring action to rotate the lever 8 about its pivot 38, another arm of the lever 8 striking the inclined under surface of the latch 18 to lift it, while the lever 8 also engages a nose piece 16 on the slide 3 to push it forward to open the doors. Alternatively, the lever 8 is rotated by depressing the member 6, which engages a two-armed lever 17 which engages the inclined surface of a third arm of the lever 8. The latch 18 may be lifted in a third way by operation of the door handle 32 which lifts an arm 33, The latch 18 may be kept continuously raised by a slide 36. Instead of an imitation telephone 6, a fire alarm or bell may be used, and instead of the cord 9, a Bowden wire with a push knob device may be used.