baber/WOPTO huggingface dataset:
Patent GB-785406-A (GB)
Title: Emulsion paint vehicles
IPC: C04B24/24
Filed: 1955-12-12
Abstract: 82 1/2 to 67 1/2 parts of vinyl acetate are copolymerized in aqueous dispersion with 17 1/2 to 32 1/2 parts of a diester of maleic and/or fumaric acid and a C2 to C8 saturated aliphatic monohydric alcohol, and before, during or after the copolymerization 5 to 17 parts, per 100 of copolymer, of hexylene glycol, 3-chloro-1,2-propanediol, 2-(beta-butoxy-ethoxy) ethanol, 2-butoxy-ethanol acetate or dipropylene glycol are added to the medium.  A peroxygen polymerization catalyst, such as an alkali metal or ammonium persulphate or hydrogen peroxide, is preferably used, and other ingredients which may be included are sodium bicarbonate (for pH adjustment), polyvinyl acetate hydrolysed to an acetate content of 1 to 25 per cent and wetting agents such as the dioctyl ester of sodium sulphosuccinic acid, sodium alkyl sulphonates, esters of alkyl sulphonates, the sulphates of higher alcohols, ethylene oxide/alkyl phenol condensation products and polyethylene glycol/fatty acid reaction products.  The diesters specified are those derived from ethanol, propanols, butanols, methyl pentanols, 1,4-dimethyl-1-butanol and 2-ethyl-1-hexanol.  The dispersions are used in conjunction with pigments as emulsion paints.  With cements they give coating materials applicable to iron or steel or as primers for mortar or concrete surfaces prior to applying further layers of mortar or concrete.  Ingredients specified in the above applications are titanium dioxide, diatomaceous earth, mica, lithopones, unspecified pigments, Portland cement, high alumina content cement, polyvinyl acetate solution, methyl cellulose solution, soya lecithin, phenyl mercuric borate, rosin/ethylene oxide adduct and an unspecified bacteriostatic agent.
Patent GB-766946-A (GB)
Title: Improvements in or relating to high-voltage transformers
IPC: H01F30/10
Filed: 1954-12-09
Abstract: 766,946. Transformers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 9, 1954 [Dec. 12, 1953], No. 35677/54. Class 38 (2). A high-voltage transformer comprising at least one secondary winding-say 13-wound at constant pitch in an axial direction and a primary winding 17 concentrated adjacent one of the ends of the secondary winding is characterized in that internally of the secondary winding 13 is arranged a core member 5 made of a substantially non-conductive ferromagnetic ferrite material and which has an axial length approximately equal to the axial length of the secondary winding, each end of the core member 5 being in contact with a member of comparatively high electrical conductivity, as shown, 7 or 9. In the disclosed embodiment two secondary and two primary windings are used, one of each on each of two core members 3, 5, the ends of the secondary windings being connected to adjacent members 19, 21 which are in electrical connection with the conducting members 7, 9, the member 21 being earthed. In a further embodiment the secondary windings 11, 13 have differing numbers of turns, the upper ends of the two windings then being connected to the ends of the primary winding of a transformer 23 instead of to the member 19, this transformer having a centre tap of the primary winding connected to the member 9. The core members 3, 5 are preferably made of a nickel-zinc ferrite having a resistivity of 108 ohms per centimetre cube whilst the members 7, 9 are preferably made of a manganese-zinc ferrite having a resistivity of from 50 to 100 ohms per centimetre cube.
Patent GB-861755-A (GB)
Title: Improvements in reciprocating pumps, in particular in fuel injection pumps
IPC: F02M59/00
Filed: 1957-11-15
Abstract: 861,755. Fuel injection pumps. BESSIERE, P. E. Nov. 15, 1957 [Nov. 21, 1956], No. 35696/57. Class 102(1). A fuel injection pump comprises a piston 2 working in a cylinder 1 from which leads a delivery conduit 4 and a by-pass conduit 7 controlled by a valve 6. The valve 6 is formed by two parts, the lower part of diameter d controlling the by-pass conduit 7 and an upper part of a larger diameter D which opens a conduit 12 as the by-pass conduit is opened and permits liquid under pressure to act on the upper part to hold the valve in its by-pass conduit open position during the delivery stroke once the pressure in the pumping chamber has opened the valve. The liquid pressure acting on the upper part of the valve may be produced by spring loaded piston 17 acting as an accumulator which is fed with liquid during the first part of the pumping stroke until the piston 2 has closed port 12b. Alternatively liquid may be fed by the piston 2 to the conduit 12 which opens into the upper part of cylinder 1 as in Fig. 3 (not shown), in which case the liquid after acting on the upper surface of the valve flows back to the supply tank through a throttled outlet. Such a throttled outlet provides means for holding the by-pass conduit open throughout the whole of the suction stroke of the pump when the engine driving the pump exceeds a predetermined speed. Specification 861,754 is referred to.
Patent GB-971574-A (GB)
Title: Improvements in or relating to imagewise photopolymerization
Inventor: SCHWERIN ANDRE KURT
IPC: G03F7/095
Filed: 1962-09-20
Abstract: 971,574. Photographic materials. GENERAL ANILINE & FILM CORPORATION. Sept. 20, 1962 [Sept. 26, 1961], No. 35847/62. Heading G2C. A light sensitive element comprises a support and coated thereon in either order a layer containing a photopolymerizable monomer dispersed in a carrier and a layer containing as a photopolymerization catalyst a silver halide emulsion dispersed in a carrier. Specified monomers are vinyl esters, acrylic acid, methyl acrylate, acrylonitrile and equivalent methacrylic compounds, styrene, vinyl pyrollidone and vinylidene chloride. In the example an aluminium support is coated with a first layer of a silver chloride emulsion containing 4-10% silver chloride and gelation and a second layer of gelatin, acrylamide, and N, N'-methylenebisacrylamide.
Patent GB-1062216-A (GB)
Title: Improvements in flat knitting machines
IPC: D04B15/54
Filed: 1963-09-12
Abstract: In a flat knitting machine additional yarn is laid in from a supplementary feeder the positions of the main and supplementary feeders are reversed each time the direction of traverse of the feeders i.e. the in-lay feeder always leads the main leader for part of the traverse irrespective of direction of traverse.
Patent GB-343930-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01J40/06
Filed: 1929-11-25
Abstract: 343,930. Photo-electric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland, Nov. 25, 1929, No. 36072. Convention date, May 16. [Class 39 (i).] In a photo-electric cathode in which a layer of photo-electric substance such as caesium is supported on an intermediate layer consisting of or containing a compound which is a better absorbent of the photo-electric substance than is the support and which may be an oxide or halide such as calcium fluoride, particles of an electrically conducting substance, such as tungsten, the photo-electric substance itself, or a mixture of these, are distributed throughout the intermediate layer so as to reduce the resistance. A layer of photo-electric substance may be applied to the intermediate layer and the layers heated after the cell has been sealed off, so that the photo-electric substance diffuses throughout the intermediate layer ; or the intermediate layer and conducting particles may be volatilized from an electrode and deposited on a support.. Preferably a ring-shaped electrode 6 is coated with a mixture containing a difficultly volatilizable metal such as tungsten, and a compound of a readily volatilizable metal with another ingredient capable of forming with tungsten &c. a readily volatilizable compound. For example a mixture of tungsten and calcium fluoride is heated by passing a current through the electrode 6. Tungsten fluoride and calcium are deposited on the envelope and react to form the starting materials, tungsten and calcium fluoride mixed in a finely-divided state. Or a mixture of iron or zirconium with sodium chloride or potassium chloride may be used. A substance such as silica may be added to the mixture to facilitate the reaction : in this case tungsten oxide and calcium are deposited in the envelope and react to form tungsten and calcium oxide, sodium fluoride being removed by a pump. Alkali metal forming the photo-electric material may be introduced by evaporation from a side tube at 9, for example as described in Specification 323,718, [Class 39 (i), Electric lamps, Arc &c.]. After sealing, the cell is heated to 200‹ C. to cause alkali metal to penetrate throughout the intermediate layer. Otherwise a mixture of caesium chromate, zirconium and sodium fluoride is heated to volatilize caesium, zirconium flouride and sodium, the last two substances reacting to form zirconium and sodium fluoride in a finely-divided state with which caesium is mixed.
Patent GB-1354971-A (GB)
Title: Method and apparatus for controlling delivery gauge in a metals  rolling mill
IPC: B21B37/56
Filed: 1971-08-02
Abstract: 1354971 Automatic control of rolling mills GENERAL ELECTRIC CO 2 Aug 1971 [13 Aug 1970] 36132/71 Heading G3R In a multiple stand rolling mill, the exit thickness of strip from a stand is controlled by the difference between valves of exit thickness calculated (a) from the force on the rolls, the unloaded roll gap and the mill modulus of elasticity and (b) from the exit strip speed at that stand, and the exit strip speed and thickness at the final stand. In the embodiment, the force on the rolls is measured by load cells 20, 30, the strip speed by tachogenerators 21, 39 and the output thickness by an X-ray gauge. For stand II, for example, the calculations of exit thickness using "gaugemeter" and "mass flow" techniques are differenced, and fed to a summer 25 and position control 26 to adjust the screwdowns. The "mass flow" calculation may be corrected according to the proportion of the total load exerted by the stand. The differenced signal may be passed periodically to the roll gap adjuster, which may be digital or analogue.
Patent GB-1077739-A (GB)
Title: Process for the manufacture of sorbic acid halides
IPC: C07C51/60
Filed: 1964-09-03
Abstract: Sorbic acid halides are prepared by reacting the polyester of 3-hydroxy-hexenic-(4)-acid-(1), obtainable from ketene and crotonaldehyde in the presence of a fatty acid salt of a bivalent metal as catalyst, with an acid halide containing more than one available mobile halogen atom, if desired, in the presence of an inert solvent or diluent.  When sorbic acid chloride is prepared from the polyester and an inorganic acid chloride it is preferred to effect the reaction in the presence of an N,N-disubstituted amide, N-substituted lactam and/or N-acylated heterocyclic base of the formula <FORM:1077739/C2/1> wherein (a) R represents a hydrogen atom or a C1- 4 alkyl group and R1 and R2 each represent a hydrocarbyl radical or (b) R2 represents a hydrocarbyl radical and R and R1 together represent an alkylene group forming part of a lactam ring or (c) R represents a hydrogen atom or C1-4 alkyl group and R1 and R2 together represent an alkylene radical or such a radical interrupted by an oxygen atom, which radical forms part of a heterocyclic ring.
Patent GB-1329773-A (GB)
Title: Device for testing the appearance of yarn
IPC: G01N33/36
Filed: 1971-08-02
Abstract: 1329773 Inspecting yarns VYZKUMNY USTAV BAVLNARSKY 2 Aug 1971 [3 Aug 1970] 36215/71 Heading D1F [Also in Division E2] A device for testing the appearance of yarn comprises a planiscope plate 4 on to which the yarn is wound and a pair of coaxial jaws 3, 3' for removable fastening of the plate and mounted on coaxial shafts 2, 2' mounted rotatably in a frame and connected by a transmission to a drive, each jaw consisting of two levers 5, 5' each having two arms 7, 11 and 7', 11' and being swingably mounted on a pivot 6, 6' at the end of the shafts. The levers carry on the arms 7, 7' swingable, plategripping jaws 8, 8' and the arms 11, 11' thereof are pressed by a spring or springs 14, 14' on to rounded surfaces 23 of a ring 12 traversable on the shaft and which bears against a fastening nut 15 screwed on the shaft 2 in which a centering mandrel 16 is co-axially mounted, the mandrel extending between the jaws. A spring 18 acting on the mandrel 16 presses the plate 4 against an oppositely mounted, stationary mandrel 16'.
Patent GB-1016197-A (GB)
Title: Improvements relating to drawer slides
Inventor: TOWNSEND CLAUDE MORTIMER
IPC: A47B88/493
Filed: 1963-09-14
Abstract: 1,016,197. Drawer slides. AUTOSET (PRODUCTION) Ltd. July 1, 1964 [Sept. 14, 963], No. 36268/63. Heading A4B. A drawer slide comprising channel section members 10, 11, 12, the member 11 having rollers on which members 10, 11 move, has a catch 20 pivoted to member 11 and engageable by rotation under gravity or a spring with a slot 21 in member 10, when the members are extended, to prevent closure of the slide until the catch is manually released. Catches 16, 17 are also provided to limit extension of the slide.
Patent GB-343201-A (GB)
Title: Improvements relating to rotary drawworks for well drilling plant
IPC: E21B19/00
Filed: 1929-11-28
Abstract: 343,201. Band brakes. NATIONAL SUPPLY CO. OF DELAWARE, 120, Broadway, New York, U.S.A. Nov. 28, 1929, No. 36515. Convention date, June 3. [Class 103 (i).] In a well-boring plant, a unitary draw-works structure comprises an angle iron 11 connecting the posts 1, 2, carrying the draw-works drum 4, brackets 12 riveted to the angle iron and supporting a shaft 15 to which the live ends of the brake bands 6 are secured by cranks 27, and eye-bolts 18 passing through the brackets are secured to the dead ends of the brake bands. The nuts 20 on the eye-bolts 18 are locked by engagement with pivoted members 21. A bracket 31 secured to the shaft 15 carries an operating handle 25 and counterweight 34. Specification 338,738, [Class 103 (i), Brakes &c.], is referred to.
Patent GB-969122-A (GB)
Title: Diels-alder adductions with aromatic dienophiles
IPC: C07C23/46
Filed: 1962-09-28
Abstract: In the manufacture of Diels-Alder addition products from hexachlorocyclopentadiene and aromatic compounds in which the aromatic ring acts as a dienophile, the rate of reaction is increased by effecting the addition under superatmospheric pressure.  The applied pressure should be at least 6,000 lb. per sq. inch, and the addition should be effected at a temperature of at least 100 DEG C., preferably 140-230 DEG C. Examples are given of the manufacture of addition products from hexachlorocyclopentadiene and naphthalene, 2-methylnaphthalene, anthracene, 2-ethylnaphthalene and 2-naphthoic acid. A product from hexachlorocyclopentadiene and 2-chloromethylnaphthalene is also mentioned. Specification 730,430 is referred to.
Patent GB-1421903-A (GB)
Title: Cooling for shaft furnace lining
IPC: C21B7/10
Filed: 1974-08-22
Abstract: 1421903 Cooling for shaft furnace lining HOOGOVENS IJMUIDEN BV 22 Aug 1974 [12 Sept 1973] 37003/74 Heading F4B A shaft furnace has cooling plates 2 grouped in horizontal circles up the length of the furnace that are in engagement at their upper and/or lower faces with circular layers of a first refractory material (shaded by left-hatching such as indicated by reference numerals 3, 4 and 5 that has a conductivity coefficient at 20‹ C. of at least 25 kcal. /hr/m/‹C. The interior face of the furnace lining is partly provided by a second refractory material of the type indicated by reference numerals 6 and 9 or the type indicated by reference numeral 8. The second refractory material has high resistance to wear, is not susceptable to chemical attack until 600‹ C. and has a heat conductivity coefficient of at least 8 kcal./hr.m<SP>2</SP>/‹C.
Patent GB-1057675-A (GB)
Title: Method of sterilization
IPC: A61L2/20
Filed: 1963-09-20
Abstract: Instruments are sterilized, in a pressure resistant an hermetically closable receptacle by placing the instruments to be sterilized into the receptacle, filling said receptacle at least partly with a sterilizing liquid having a lower boiling point than water at atmospheric pressure and capable of dissolving lubricating oils, anti corrosives and disinfectants, closing said receptacle hermetically, heating said sterilizing liquid within said receptacle to a sterilizing temperature which produces a superatmospheric pressure within said receptacle and maintaining the temperature for a period of time sufficient to sterilize the instruments and finally leaving said receptacle to cool down. Specified liquids are ethyl alcohol and ethyl alcohol solutions of vegetable oils, e.g. castor oil, mineral oils and silicone oils, sodium nitrite, quaternary ammonium compounds and hexachloropene.
Patent GB-824089-A (GB)
Title: Improvements in or relating to coating with metals
IPC: H05K3/18
Filed: 1955-12-28
Abstract: A non-metallic body is coated first with a nickel-phosphorus alloy containing 5-11% phosphorus, and then with copper.  Thus a printed circuit may be made by (a) coating an insulating base with nickel-phosphorus alloy by deposition from an aqueous chemical plating bath of the nickel cation-hypophosphite anion type, (b) masking the areas of alloy on which no conductor is desired, (c) electrodepositing a layer of copper on the unmasked areas, and (d) removing the masking material and the areas of alloy masked thereby. Preferably the insulating base consists of textile-reinforced phenolformaldehyde condensation resin, and is prepared for nickel plating by being provided (i) with dispersed palladium particles to act as catalyst, and (ii) with a nickel strike from the strike bath disclosed in Specification 824,090 [Group II].  Heat treatment at 325 DEG F. preferably follows the nickel plating.  Masking may be achieved by a conventional silk screen technique.  Specifications 761,062, 761,556, 761,567, 785,693, 785,694, 785,695, 785,696 and 786,175 also are referred to.
Patent GB-858983-A (GB)
Title: Improvements in threshing machines, especially combine harvesters
IPC: A01F12/00
Filed: 1958-11-18
Abstract: 858,983. Threshing machines. WESTERASMASKINER A.B. Nov. 18, 1958 [Nov. 21, 1957], No. 37111/58. Class 6(3). A threshing machine is provided with a beater 7 located between the threshing cylinder 4 and the strawrack 15, the beater rotating in the opposite direction to the cylinder 4 and being partially surrounded on its upper side by an arcuate sieve 8 through which the grain can pass upwardly. The pass 10 between the beater and sieve is approximately tangential to the threshing cylinder so that the threshed product passes into it without change of direction. The radial width of the passage 10 is at least twice as great as the corresponding width of the passage 3 between the cylinder 4 and concave 5. The concave is extended by a portion 11 by which it is pivoted, at 11<SP>1</SP> on the machine frame. The straw-rack 15 has an upwardlyinclined extension 16 in the direction of the beater 7. The grain which passes through the sieve enters channels 17, 18 extending across the machine, these channels housing worm-conveyers 17a, 18a by which the grain is conveyed to ducts 19, 20, which feed a transverse duet 21 having a longitudinal slot 21<SP>1</SP> through which the grain falls on to the base 25 of the machine-casing. An endless scraperconveyer 50 propels it rearwardly to dressing apparatus 29 of conventional type, the conveyer forming the subject of Specification 858,984,
Patent GB-1087838-A (GB)
Title: Preparation of acrylic esters
IPC: C07C69/54
Filed: 1965-08-31
Abstract: Acrylic esters are prepared by decarboxylation of a mono-copper salt of a half ester of maleic or fumaric acid, containing 1 atom copper per molecule of half ester, at 100-290 DEG  C. in the presence of a compound having six-membered aromatic heterocyclic ring containing at least one tertiary nitrogen atom and in the initial presence of 2-65% by weight, based on the half ester contained in the copper salt, of an acrylic ester and in the presence of 0.01-2 mols., based on one mol. of half ester, of an alcohol.  It is preferred to use an acrylic ester and alcohol which correspond to the half ester of maleic or fumaric acid.  The mono-copper salts may be formed in situ by reaction of a copper compound, e.g. an oxide, carbonate or sulphate, with the half ester.  Specified hetero-cyclic amines include pyridine, quinoline, acrideine and pyrazine.  It is preferred to operate in the presence of an alkali and a polymerization inhibitor. Examples relate to the preparation of ethyl and butyl acrylates.
Patent GB-1127935-A (GB)
Title: Method and apparatus for fixing ornamentations to a base
Inventor: ROHRER EDWIN
IPC: B25C3/00
Filed: 1966-08-18
Abstract: 1,127,935. Nailing tools. J. CLOETTABRUNNER. 18 Aug., 1966, No. 37137/66. Heading B4C. A tool 2 for driving a pin 1 pointed at both ends into a base, such as a branch, for mounting ornaments, such as a candle, thereon comprises a sleeve having an axial bore divided by a shoulder 2a into large and small diameters such that when the pin is inserted into the bore a tapering surface of one pointed end bears against the shoulder.
Patent GB-670615-A (GB)
Title: Improvements in or relating to apparatus for taking stereoscopic pictures without abnormal stereoscopic effects
IPC: G02B27/22
Filed: 1946-12-18
Abstract: 670,615. Stereoscopic photography. REIJNDERS, F. H. Dec. 18, 1946 [July 5, 1941], No. 37231/46. Classes 97 (i) and 98 (ii). The two optical axes of a stereoscopic system converge on to the nearest object plane at a small angle (approximately 0.6 degrees) which is kept fixed for all object distances. To enable near objects to be photographed, light therefrom is reflected from mirrors such as shown at 3, 4 and then from mirrors 5, 6 into the camera objectives 7, 8. The mirrors 3, 4 are laterally adjustable in accordance with the object distance to maintain the inclination of the axes, this adjustment being simultaneous with the focusing adjustment if desired. The mirrors are so inclined that the central rays from the object fall on the two films perpendicularly. Further mirrors may be used to enable two images to be recorded side-by-side on a single film through a single objective. The Specification as open to inspection under Sect. 91 describes the other details of the embodiment illustrated. The mirrors 3, 4 are carried on oppositely-threaded portions of a rod 20<SP>1</SP> which is rotated by a knob 20 to adjust the mirrors to maintain the optical axes convergent on the object. This adjustment may be coupled, as by racks and pinions, to the focusing adjustments for the camera objectives. View-finders may also be carried on the supports for the mirrors 3, 4, each having a lens 22 and groundglass 21 with a line 23 on to both of which lines images of the object are registered when the optical axes are convergent on the object. This subject-matter does not appear in the Specification as accepted.
Patent GB-1009116-A (GB)
Title: Improvements in or relating to fluid flow meters
IPC: G01F1/06
Filed: 1962-10-02
Abstract: 1,009,116. Rotary fluid-flow meters. S. S. SMITH. Oct. 2, 1962 [Oct. 2, 1961], No. 37377/62. Heading FIF. A rotary fluid-flow meter of the impulse turbine type comprises a pair of identical casing sections 12, 14 (Figs. 2, 4), defining a helical conduit 10 for fluid flowing from an inlet 22 to an outlet 24 between a ring of blades 38 on a rotor 34 attached to a shaft 44, the conduit being such that the majority of blades 38 lie in the path of the fluid at any instant when the rotor is rotating. A magnetic pick-up 54 (Fig. 1) connected to an indicator 60 is actuated by a toothed wheel 52 which is attached to shaft 44. By-passing of the rotor by the fluid is rendered negligible by a narrow clearance provided between reinforcing plates 37 for the hub 36 of the rotor and overlapping portions 43 of sections 12, 14, and between reinforcing rings 39 for the blades and a groove 40. The axial position of shaft 44 relative to sections 12, 14, is adjustable by a nut 51 engaging with one of a pair of bearings 46 for the shaft. The meter may be made of stainless steel and shaft 44 may extend beyond section 12 such that small amounts of power can be taken off the rotor.