baber/WOPTO huggingface dataset:
Patent GB-1473038-A (GB)
Title: Multiple roll calenders for producing plastics film
IPC: B29C43/58
Filed: 1975-07-16
Abstract: 1473038 Calendering-machines HERMANN BERSTORFF MASCHINENBAU GmbH 16 July 1975 [14 Aug 1974] 29874/75 Heading B5A In a multiple roll calendering machine (as shown, a 6-roll double-L machine) the penultimate roll 11 is spaced from the antepenultimate roll 9 so that material travelling between the rolls is in contact with neither, and the last two rolls 11 and 14, which define the final working gap 15, are drivable at a speed which can be varied independently of the speeds of rolls 6 ... 9. By using such an arrangement, the thickness of the film produced can be adjusted simply by adjusting the width of gap 15 by moving roll 14 and adjusting the peripheral speeds of rolls 11 and 14 accordingly without necessitating the alteration of the width of gaps 5, 12 and 13 from the pre-set optimum width. Pull-off and/or guide rollers may be disposed between rolls 9 and 11.
Patent GB-884042-A (GB)
Title: Improvements in or relating to grinding machines
Inventor: SUMNER ALBERT
IPC: B24B7/17
Filed: 1959-09-02
Abstract: 884,042. Grinding. ROWLAND & CO. Ltd., F. E. Sept. 28,1960 [Sept. 2,1959], No. 29884/59. Class 60. A device for controlling the axial movement towards each other of a pair of annular grinding wheels comprises a pair of blocks 14 attached to rams 16 adapted to cause axial movement of the grinding wheels and a wedge 12 which is arranged between the blocks and is movable transversely thereof so as to control their relative positions and so effect the synchronous axial movement of the grinding wheels. The grinding wheels carried by the rams 16 which are operated hydraulically. During a grinding operation, the rams are fed inwardly and at the same time the wedge 12 is withdrawn from its innermost position shown by an hydraulic assembly 13 so that the two grinding wheels are fed towards each other in a synchronous manner. When the wedge is fully retracted the grinding wheels are as close together as is allowed by the feed mechanism.
Patent GB-1506833-A (GB)
Title: 16-substituted steroids of the pregnane series and the preparation of such steroids
IPC: C07J5/00
Filed: 1976-07-19
Abstract: 1506833 16-Substituted pregnane steroids MERCK & CO Inc 19 July 1976 [23 July 1975] 29971/76 Heading C2U Steroids of the formula  and their #<SP>1</SP>-derivatives wherein X is H or F and R<SP>1</SP> is C 3-6  cycloalkyl, C 1-8  alkyl or phenyl- (C 1-3  alkyl), which are novel except when R<SP>1</SP> is C 1-4  alkyl, are prepared from steroids of the formula wherein Ac is acyl or their #<SP>1</SP>-derivatives by converting these to the corresponding 11#- trifluoroacetoxy steroids (using trifluoroacetic anhydride in an inert solvent containing an organic base), reacting these with a Grignard reagent R<SP>1</SP>Mghal in the presence of cuprous chloride followed by treatment with (R<SP>2</SP>CO) 2 O wherein R<SP>2</SP> is C 1-4  alkyl to give steroids of the formula  or #<SP>1</SP>-derivatives thereof, treating these with peroxytrifluoroacetic acid in the presence of disodium hydrogen phosphate to give the corresponding 17α,20-epoxy steroids, and treat. ing these with an alkali metal hydroxide. The products are anti-inflammatory agents. Starting materials are prepared as illustrated in the following reaction scheme wherein Ac is acetyl. 9α - Fluoro - 16,17- anhydroprednisolone 21-acetate and 16,17- anhydrohydrocortisone 21-acetate are prepared similarly.
Patent GB-1430732-A (GB)
Title: Hot gas engines
IPC: F02G1/04
Filed: 1974-01-14
Abstract: 1430732 Hot gas engines UNITED STATES GOVERNMENT OF 14 Jan 1974 [30 Jan 1973] 30107/75 Divided out of 1430731 Heading F1S A hot gas engine comprises a heat source 43 for the hot chamber, a thermal storage container 33 positioned around the heat source, and a temperature distribution heat pipe 19 located radially outward from the heat source and inward from the storage container and extending around the hot chamber to maintain a uniform temperature distribution around the hot chamber. As shown the heat pipe is formed as a cylindrical shell of a thermally conductive metal. It may be filled with potassium. The engine described also forms the subject of the parent Specification 1430731 and Specifications 1430733 and 1430734 which are referred to.
Patent GB-748921-A (GB)
Title: Electrically conducting coated glass or ceramic articles suitable for use as a lens,a window or a windshield
IPC: C03C17/36
Filed: 1953-11-02
Abstract: An electrically conductive article, such as a coated light-transmitting lens, window or radio-frequency shield, comprises a body of siliceous material and a continuous layer of substantially uniform thickness composed of an intimate molecular mixture of metal and a dielectric comprising an oxide of silicon, deposited by molecular deposition from the vapour state.  The dielectric may be silica or silicon monoxide or a mixture of the two, and preferred metals are copper, silver, gold, nickel and chromium; the proportion of metal to dielectric may be varied across the thickness of the layer.  For windshields and the like adapted to be treated by an electric current it is preferred to produce a layer with an electrical resistance of less than 100 ohms/square, and having a light transmission of not less than 70 per cent.  A number of layers may be applied, for example for a beam-splitter a glass base is provided successively with a layer of Ti O2, a layer of gold and silica and a layer of TiO2, each of approximately g /4 referred to light of 5500 .U.  The metal containing layers may be further coated with metal at their edges as by spraying or electroplating to provide a strengthened edge for connexion to electrical contacts.  The thermal evaporation of the metal and the oxide of silica may take place from a single heated filament in a higher-vacuum chamber, or a number of filaments may be used and treated in sequence.
Patent GB-687807-A (GB)
Title: Anti-gas fading anthraquinone dyes
IPC: C09B1/514
Filed: 1950-12-11
Abstract: The invention comprises dyes of the formula <FORM:0687807/IV (c)/1> in which X is hydrogen or methyl, R is hydrogen or CH2OCH2CH2OZ, Z is hydrogen, hydroxy-alkyl, or alkoxyalkyl, and Y is hydrogen, hydroxy, or <FORM:0687807/IV (c)/2> They dye cellulose acetate violet to blue shades.  The examples refer to 1-hydroxy-4-anilino-anthraquinones in which X and R are hydrogen and Z is hydrogen, b -methoxyethyl, or b -hydroxyethyl, or in which X is methyl, Z is hydrogen and R is hydrogen or -CH2.OCH2. CH2OH, and describes their preparation from quinizarin and leucoquinizarin, the appropriate amine, and boric acid.  Also, further examples refer to 1,4-dianilinoanthraquinones having a b -hydroxyethoxymethyl radical in a meta position of each anilino nucleus, with and without methyl in para position, and with the same radical in both meta positions of each nucleus and a methyl in para-position, again prepared from quinizarin and leuco-quinizarin.  Examples also refer to a 1,5,8-trihydroxy-4-anilino-anthraquinone having a b  - hydroxyethoxymethyl radical in a meta position of the aniline nucleus and prepared by the same method, and to a 1,5 - dihydroxy - 4,8 - dianilino - anthraquinone having a b -hydroxyethoxymethyl radical in a meta position of each aniline nucleus, prepared by the same method and also by removal of the sulpho groups from the corresponding disulphonic acid by use of ammonium hydroxide and sodium hydrosulphite.
Patent GB-912547-A (GB)
Title: Hammer firing circuit for high speed printer
IPC: B41J9/44
Filed: 1959-09-04
Abstract: 912,547. Transistor switching circuits. SHEPARD, F. H. Sept. 4, 1959 [Sept. 12, 1958], No. 30272/59. Class 40 (6). [Also in Group XVI] A circuit for energizing the solenoid 18 in a high-speed printer (see Group XVI) comprises a normally non-conductive power transistor 40 and a current source 42 connected in series across the solenoid, a further normally non- conductive transistor 48 and a normally conductive transistor 64. On the application of a positive pulse to the input via capacitor 76, transistor 64 is switched off, thus switching transistors 48 and 40 on and permitting a heavy pulse of current to flow to the solenoid 18. The duration of the current pulse is determined by positive feed-back from the collector of transistor 48 through the capacitor 80; the length of the pulse may be adjusted by the variable resistor 82. The diodes 72, 74 provide a high input impedance for the circuit and may be replaced by a resistor 83 where a low input impedance can be tolerated. Large negative voltages on the collector of transistor 40 at the end of the current pulses due to the inductive load are suppressed by means of diode 58. A further transistor 84 connected in parallel with transistor 64 may be made conductive by the application of a negative input to its base so rendering the input pulses applied to transistor 64 ineffective. Specification 825,646 is referred to.
Patent GB-1358080-A (GB)
Title: Poly-alkylene terephthalate- moulding compositions
IPC: C08L67/02
Filed: 1971-06-29
Abstract: 1358080 Polyester compositions CELANESE CORP 29 June 1971 [29 June 1970] 30299/71 Heading C3R Moulding compositions having flame retardant properties comprise a melt blend of polypropylene terephthalate or polybutylene terephthalate having an intrinsic viscosity of 0À2-1À2 decilitres per gram with up to 30% of its weight of a polyphosphonate or poly- (phosphonate-phosphate) copolymer of the formula in which R<SP>1</SP> is hydroxy or an alkoxy, aryloxy, haloalkoxy, haloaryloxy, hydroxyalkoxy or hydroxyaryloxy radical having up to 20 carbon atoms, R<SP>2</SP> is hydrogen or an alkyl, aryl, haloalkyl or haloaryl radical having up to 20 carbon atoms, R<SP>3</SP> is an alkyl, aryl, haloalkyl or haloaryl radical having up to 20 carbon atoms, Ar<SP>1</SP> and Ar<SP>2</SP> are divalent arylene or haloarylene radicals each having up to 20 carbon atoms, Z<SP>1</SP> is oxygen or sulphur, Z<SP>2</SP> is hydrogen or q is an integer of at least 1, r is 0 or an integer of at least 1 and x is an integer greater than one, and 2-60% of the total weight of the composition of a reinforcing agent, e.g. glass fibres, asbestos, cellulosic fibres, cotton fabric, paper or metallic powders. In examples the compositions comprise polybutylene terephthalate, poly - (m - phenylene phenyl phosphonate) or poly - [(m - phenylene phenyl phosphonate)]- 4 [(m - phenylene phenyl phosphate)] and glass fibres.
Patent GB-1501289-A (GB)
Title: Compressor stator having a housing in one piece
IPC: F04D29/52
Filed: 1975-07-18
Abstract: 1501289 Compressor stator blade fixing SHUR-LOK INTERNATIONAL SA 18 July 1975 [21 Aug 1974] 30315/75 Heading FIT  Compressor stator blades 16 are retained in an annular undercut groove in unsplit casing 6 by a surrounding chain 24 the rollers 26 of which bear on respective blade bases 17 via resilient plates 25. The latter have narrow end portions 33 engaging base recesses 23. A screw device 29 tensions chain 24. The blades are assembled from the outside of casing 6 via one or more radial loading shots (15) Figs. 1, 2 (not shown), having recesses 36 for the passage of plate end portions 33.
Patent GB-183081-A (GB)
Title: Improved device for securing articles to a clothes line
IPC: D06F55/00
Filed: 1921-11-14
Abstract: 183,081. Byrne, R. F. Nov. 14, 1921- Clothes - pegs; clips, spring-wire.-A clothes-peg is made from a piece of helically coiled wire 1, with one end offset to act as a guide 3 for fixing, and the other offset to form a handle 2. The pitch of the coils may decrease towards the end 2.
Patent GB-171689-A (GB)
Title: Improvements in carburettors
IPC: F02M1/00
Filed: 1921-11-15
Abstract: 171,689. Cowell, A. S. Nov. 15, 1920, [Convention date]. Spray carburettors.-Fuel and air are simultaneously controlled by a tube 15, Fig. 6, and block 15a connected by a web 15<b>; the block has roller bearings 16 running in guides 17. The block clcses more or less the choke passage 12 for the air and the tube slides over the multi-jet nozzle 13; the tube uncovers the nozzle completely before the block has wholly uncovered the air passage. When the block has been moved to its extreme position, a rod 29, Fig. 2, attached to the block turns an arm 21 and through a rockshaft 19 and an arm 26, Fig. 6, closes a valve 25<a> in the fuel supply passage; air only is then admitted to the engine cylinders. The valve may be independently actuated through an arm 20 and rock-shaft 19; a further adjustment for this valve comprises a screw stop 31 adjustable by the turnrod 31a. The carburettor is heated bv a water or exhaust jacket, which surrounds the mixing- chamber at about the point where the nozzle enters. When exhaust is used, the amount passing through the jacket is controlled by a by-pass cock, between the engine exhaust outlet and the silencer. At starting an electric heater 34 is used, this being placed close to the nozzle. Steam from the engine cooling system may be added to the mixture, being admitted through the pipe 72. A light fuel may be used at starting and is supplied through the float chamber; to start, a threeway cock first disconnects both fuel supplies from the float chamber 43, Fig. 7. Heavy fuel is then withdrawn from this chamber by the pump 44 and the cook 60 is then closed. The three-way cock is then turned to admit the light fuel, which enters the float chamber past the valve 50 and goes out by the pipe 61; when the engine is warm the three-way cock turns on the heavy fuel and the pump 44 returns the previously withdrawn charge to the float chamber. The Specification as open to inspection under Sect. 91 (3) (a) states that a rotary throttle can be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-1189396-A (GB)
Title: Air-Cooled Collector for a Power Klystron
IPC: H01J23/033
Filed: 1968-06-26
Abstract: 1,189,396. Klystrons. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 June, 1968 [29 June, 1967], No. 30508/68. Heading H1D. The externally screw-threaded collector 1, Fig. 2, of a power klystron is cooled by an assembly of plates screwed on to the collector, expansion of the plates being allowed for by sector-shaped portions, e.g. 14, Fig. 3, cut from the plates, which are arranged when on the collector, such that sector edges of adjacent plates are slightly angularly displaced from one another to form a radial slot, e.g. 11a, while the slots formed by successive pairs of adjacent plates, 11, lla, 11b, are distributed helically around the complete circumference of the collector. This arrangement minimizes, by rendering symmetrical, the stress on the collector when the plates expand.
Patent GB-1475428-A (GB)
Title: Preparation of piperidine sulphonamides and intermediates therefor
IPC: A61K31/445
Filed: 1975-07-22
Abstract: 1475428 Piperidine sulphonamides and intermediates therefor PFIZER Inc 22 July 1975 [10 Sept 1974] 30698/75 Heading C2C The invention comprises novel compounds of Formulµ III and IV in which R is a 3-(2-methoxy)pyridyl, 3-(2- ethoxy)pyridyl or 2-(4-chloro)pyridyl group. The compounds of Formula IV may be prepared by contacting 4-(2-aminoethyl)pyridine with an equimolar amount of 2-methoxynicotinyl chloride, 2-ethoxynicotinyl chloride or 4-chloropicolinyl chloride in a reaction-inert solvent in the presence of a base, in water at a temperature of 0 to 40 C. The compounds of Formula III may be prepared from the compounds of Formula IV either by reducing the latter at a concentration of from 10 to 30% by weight in a reaction-inert solvent with hydrogen at a pressure of 25 to 75 p.s.i.g. and at a temperature of 15 to 40 C. in the presence of a noble metal catalyst and a substantially equimolar portion of an acid, or by reacting the compound of Formula IV at a concentration of 2 to 5% by weight in a reaction inert solvent, with a substantially equimolar portion of benzyl bromide, benzyl iodide, an α-bromo- or α- iodoxylene, an α-bromo- or α-iodomethylnaphthalene or a mono- or di-substituted derivative thereof wherein the substituent is an alkyl, alkoxy, phenyl or phenoxy group, at reflux temperature to form the corresponding N - substituted- 4 - (2 - pyridylamidoethyl)- pyridinium salt, reacting the said salt at a concentration of 2 to 5% by weight in a reactioninert solvent, with a four-fold molar excess of sodium borohydride, or sodium bis-(2-methoxyethoxy) aluminium hydride or an equivalent amount of lithium aluminium hydride, at a temperature of 0 to 5 C. to form the corresponding N - substituted - 4 - (2 - pyridylamidoethyl - 1,2,5,6 - tetrahydropyridine, and reacting the latter at a concentration of 2 to 10% in a reaction-inert solvent with hydrogen at a pressure up to 400 p.s.i.g. and a temperature from 40 to 75 C. in the prescenoe of a noble metal catalyst and an equimolar portion of an acid. The compounds of Formula (III) are used to prepare piperidine sulphonamides of Formula (I) by reaction with a substantially equimolar amount of sulphamide in a reaction-inert solvent, at reflux temperature. The piperidine sulphonamides of Formula (I) may be used to prepare hypoglycemic agents of Formula (II) in which R<SP>1</SP> is a bicyclo[2.2.1]hept-5-en-2-ylendo - methyl, bicyclo[2.2.1]hept - 2 - yl - endomethyl, 7 - oxabicyclo[2.2.1]hept- 2 - methyl or 1-adamantyl group or a cycloalkyl group having from 5 to 8 carbon atoms by reaction with an equimolar amount of a diphenylcarbamoyl chloride derivative of the appropriate bicyclic amine, or with the appropriate alicyclic isocyanate.
Patent GB-779836-A (GB)
Title: Improvements in agricultural implements
IPC: A01B3/46
Filed: 1954-10-27
Abstract: 779,836. Agricultural implements. CASH, J. R. Oct. 27, 1954 [Nov. 4, 1953], No. 31028/54. Class 6(1). Apparatus for attaching a plough to the three point linkage or a tractor comprises means whereby the rear supporting wheel of the plough remains in contact with the ground when the plough is lifted, the plough moving about a vertical pivot so that it will follow the tractor along curved paths. As shown the lower lift links 7 of a tractor pivotally carry a slotted bar 8 to which is slidably attached a bolster plate 10 which slides on a plate 11 attached to the bracket 19 which houses a pivot pin 12. Attached to the bracket 19 so that it can be adjusted laterally and pivoted in a vertical plane is a transverse member 24 which through the member 29 and the rod 4 pivotally carries the front end of the plough. The upper lift link 6 is connected to an extension 15 of the pivot pin 12 and is arranged so that the pin is vertical when raised. At the rear end of the plough the supporting wheel 5 is mounted on an axle attached to a vertical member 36 which is slidable and rotatable in a bearing 38 and the linkage 42, 39 which is adjustable automatically steers the rear wheel as the plough moves about the pivot 12. When the plough is in working position, the rear wheel supports the plough through two shoulders 54, 55 being in contact. The depth of ploughing is controlled by the lift links to which is attached a depth gauge. For transporting the implement, the lift links operate a Bowden cable 59 which lowers the rear wheel through the linkage 56 and bell-crank 51 so that the rear of the plough is raised. In an alternative method of lowering the rear wheel, Figs. 8 and 9 (not shown) a hydraulic ram is provided and is controlled by a valve which is operated by the lift links.
Patent GB-240339-A (GB)
Title: Improvements in methods for treating hydrocarbons
Filed: 1924-12-24
Abstract: 240,339. Cross, W. M. Dec. 24, 1924. Hydrocarbons, cracking. - In a process for cracking hydrocarbons of the kind in which a considerable body of oil is maintained in the liquid phase under cracking conditions of temperature and pressure, the oil withdrawn from this body is passed without cooling to a zone where the pressure is released, causing distillation of the lighter fractions. An addition of heavy oil (which owing to its deposition of carbon cannot be conveniently cracked by the main process) in a highly heated condition may be mixed with the cracked oil in the pressure-releasing chamber to assist volatilization of the light fractions and to lower the free carbon content of the unvapourized residue, which is withdrawn for use as fuel oil. In the apparatus described, the feed oil passes through a heat interchanger 5 in the dephlegmator 6, preheating coil 9, and heating coil 10 to the reaction chamber 12. Any vapours formed in the reaction chamber may be withdrawn through pipe 16 to the condenser 25. The cracked liquid is withdrawn continuously or intermittently and admitted to the pressure releasing chamber 21 where it may be mixed with a heavy oil such as fuel oil which has been heated in the pipe still 41. The vapours evolved pass through the dephlegmator 6 to the condenser 25, reflux condensate from the dephlegmator being re-circulated through the system, while the unvaporized residue is withdrawn through the cooler 32.
Patent GB-846370-A (GB)
Title: Toy construction unit
IPC: A23G9/32
Filed: 1958-09-29
Abstract: 846,370. Lollipop sticks. SOUTHERN ICE CREAM CO. Sept. 29, 1958 [Oct. 3, 1957], No. 31052/58. Class 28(1) [Also in Group XV] A stick 62 which may be used for carrying edible confection 62a such as ice cream, has pairs of notches 71, 72 and 74, 75 in opposite edges by means of which it can be fitted with other identical sticks to form toy structures, there being transverse weakened lines of severance 63, 64, 65, 66 between pairs of notches to allow the stick to be broken into pieces. The width of the notches 71, 72 equals the thickness of the stick whereas the width of the notches 74, 75 is double the stick thickness, Fig. 5, and will accommodate the width of a stick between its notches, Fig. 6, pips 74a, 75a, Fig. 1, permitting the double width notches to be used in the same way as single width notches. In an alternative embodiment, Fig. 14, the periphery 90 of a stick is of greater thickness and has nibs 86a and 87a to interlock with another similar stick or fit more tightly with a stick 62. The sticks may be of wood, laminate paper or plastic and, despite the weakened lines of severance, can be deformed into curves without breakage.
Patent GB-862088-A (GB)
Title: Fresh meat and fish preservation process
Inventor: MUNOZ MIGUEL MARTINEZ
IPC: A23B4/023
Filed: 1959-09-11
Abstract: Fresh meat and fish are preserved by immersion in an aqueous solution containing 0.25 to 2% by weight of an autoxidant, 20 to 40% by weight of sodium chloride and 0.1 to 1.5% by weight of a p  synergistic or promoting agent, e.g. citric or tartaric acid. Suitable autoxidants, one or more of which may be incorporated, are citraconic acid, isopropyl gallate and nordihydroguayaretic acid, and the solution may additionally contain 0.2% by weight of a quaternary ammonium compound, 0.5 to 2.5% by weight of a water-soluble bactericidal agent, e.g. one or more of the following: parahydroxy benzoic acid esters, chlorophenols, benzoic acid and its salts, formic acid and its salts, sorbic acid and its salts, and 0.01 to 2% by weight of one or more surface-active agents, e.g. the reaction product of an aliphatic acid having 12 to 18 carbon atoms with a polyhydric alcohol.  The solution may be conveniently prepared by dissolving the constituents in a small amount of water and then diluting; alternatively the constituents minus part of the sodium chloride may be dissolved in sea water.  Besides immersion the preservation may be effected by spraying or injecting the solution or by pulverizing the food admixed with it, followed by refrigerated storage.