baber/WOPTO huggingface dataset:
Patent GB-1519015-A (GB)
Title: Apparatus for observing the imprint on a web printed in a rotary printing press
IPC: B41F33/02
Filed: 1975-09-16
Abstract: 1519015 Apparatus for observing the imprint on a moving web WINDMOLLER & HOLSCHER 16 Sept 1975 38026/75 Heading H4F Apparatus for observing the imprint on a moving web 4 printed in a rotary printing press 1, comprises a television camera 6 adapted to record individual images, a manually actuable flashlight 7 of which the light flash is synchronized to the scanning frequency of the camera, image storing means 10 for individual recorded images and an image reproducing device 11. The flashlight is controlled in synchronism with the printing press by a control device 8 connected to a shaft of the press so that the light flash is given off in the same phase as the sequence of imprints on the web. When an image is to be observed, button 12 is pressed to actuate the flashlight. The camera is preceded by a lens system 9 having an adjustable depth of focus, and is mounted for pivotal movement to all sides.
Patent GB-1131886-A (GB)
Title: Shock absorbing dog lead grip
IPC: A01K27/00
Filed: 1967-08-21
Abstract: 1,131,886. Dog leads. H. LEIGH. 21 Aug., 1967, No. 38466/67. Heading A1M. [Also in Division B4] A dog lead is provided with a shockabsorbing grip comprising a hollow cylinder 1 within which is a helical compression spring 4 surrounding a rod 2 and bearing on the end of the grip and a washer 3. The projecting end of the rod 2 is formed into a ring 2a for attachment to the lead. A flexible loop 5 may be provided at the handler's end of the grip.
Patent GB-303381-A (GB)
Title: Improvements relating to thermionic cathodes
IPC: H01J17/04
Filed: 1928-12-31
Abstract: 303,381. British Thomson-Houston Co., Ltd., (Assignees of Perrott. L. F., and Fitzpatrick, J. J.). Dec. 31, 1927, [Convention date]. Vacuum tubes.-A cathode, having a foundation of nickel, is coated with the carbonate of an alkaline earth metal, such as barium, and heated to more than 1050‹ C. until the surface becomes shiny and metallic in appearance. The sheet metal cathode 1, Figs. 1 and 3, preferably of nickel, is made into cylindrical form and may be welded to a wire 3 mounted on a conductor 4, a refractory heating spiral 5 being enclosed therein and connected to the conductors 4, 6. The coating may be applied as an aqueous solution or suspension by dipping or painting; a binder, such as a cellulose derivative dissolved in amylacetate, may be used. The bulb 8 is exhausted through a tube 11 and the temperature of the cathode is then raised above 1000‹ C. the vacuum being maintained. A gas, for example argon, neon, or hydrogen, may be inserted through a tube 13, or mercury 14 may be employed. The preliminary heat treatment may be carried out in any of the above gases but in this case a further treatment in a maintained vacuum should be applied. A full-wave rectifier embodying the invention is provided with two anodes 16, 17, Fig. 4, and a cathode 18 having a shield 25 which may be connected to the cathode 18 by a conductor 26 or may be insulated therefrom. Specification 278,750 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a foundation consisting of a nickel alloy, iron, molybdenum, tungsten or platinum and a coating material consisting of a compound of an alkaline earth metal or a mixture of compounds. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 298,906.
Patent GB-1421570-A (GB)
Title: Process for the production of 1,4-dichloro olefins
Inventor: JULIA MARC
IPC: C07C17/02
Filed: 1973-08-15
Abstract: 1421570 1,4-Dichloro-olefins AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE (ANVAR) 15 Aug 1973 [25 Aug 1972 20 July 1973] 38572/73 Heading C2C 1,4-Dichloro-olefins of general formula wherein R, R<SP>1</SP>, R<SP>11</SP> and R<SP>111</SP>, same or different, are each H or CH 3 , are prepared by the action of chlorine on a compound of general formula in the liquid phase in the presence of a linear or cyclic N-alkylamide. The quantity of amide is preferably at least 0À05 mole per mole of diolefin. An inert solvent such as an optionally halogenated aliphatic, cycloaliphatic or aromatic hydrocarbon may be used in the reaction. The preferred amide is dimethyl formamide. The examples relate to the preparation of 1,4- dichloro-2-methyl-2-butene from isoprene.
Patent GB-386348-A (GB)
Abstract: 386,348. Furnace grates. TELGMANN, B., 202, Stookumerstrasse, Barop, Dortmund, Germany. Aug. 14, 1931, No. 23009. [Class 51 (i).] Fuel is conveyed from the front to the rear of a furnace grate by imparting to the grate alternating upward and downward movements in rapid succession such movements having a slight horizontal and relatively large vertical component and being applied in various ways. The grate a shown in Fig. 1 is supported on longitudinal bearers d secured to springs f which are secured to transverse bearers g. The grate is caused to oscillate by an eccentric e. Removal of ash &c. from the grate is regulated by adjusting the inclination of the rear section b of the grate. Fig. 2 shows a modification wherein the grate is arranged in two sections each mounted on springs f and oscillated by eccentrics e a grate n being interposed between the two sections. Fuel falling through the front grate section is caught by a plate o and conveyed to the rear section. In a further modification the grate n delivers on to an endless grate. Fig. 5 shows a further modification in which the grate frame 1 is mounted on springs 11 and longitudinal beams 3 of the frame carry shafts 4 driven in opposite directions through gearing by a motor. The shafts carry eccentrically mounted weights 9, 10 arranged so that the vertical components of the centrifugal forces set up by them during rotation have a joint effect on the grate while the horizontal components of the forces annul each other and thus effect an oscillating movement of the grate. The grate may be mounted on two sets of counterweighted levers and oscillated by electromagnets, or, as shown in Fig. 8, the grate frame may be supported by a link 31 at the rear and be connected at the front to counterweighted levers 24 provided with electromagnets 30 for effecting oscillation of the grate. The front end of the grate frame is also supported on air buffers consisting of cylinders 33 each provided with a piston 38 and containing oil below the piston and an air cushion above. The access of air at the sides of the grate is prevented by sealing sheets of metal. In the modification shown in Fig. 10, the grate frame is mounted on air cushioning cylinders 33 and oscillated by an electromagnet 30. In a further modification the cylinders have oil and air cushions on opposite sides of the pistons, the oil being subjected to impulses by electromagnets to effect oscillation of the pistons and grate frame supported thereon.
Patent GB-873486-A (GB)
Title: Process for the production of valuable gaseous hydrocarbons
IPC: C10G9/00
Filed: 1957-12-12
Abstract: 873,486. Gas manufacture. KOPPERS G.m.b.H., HEINRICH. Dec. 12, 1957 [Dec. 31, 1956], No. 38675/57. Divided out of 787,829. Drawings to Specification. Class 55 (2). In a modification of Specification 787,829 the gases containing gaseous hydrocarbons of low molecular weight leaving the reaction chamber at a temperature of 700 C. or more are cooled to between 120‹ and 180‹ C. by injecting into them atomized water, the amount of water added being adjusted so that it is completely vaporized into the gases. The water may be injected by means of a propellant gas or vapour, e.g. the product gas or steam.
Patent GB-835348-A (GB)
Title: Improvements in or relating to electric cables and methods of making them
IPC: H01B7/14
Filed: 1957-12-13
Abstract: 835,348. Cables. WESTERN ELECTRIC CO. Inc. Dec. 13, 1957 [Dec. 24, 1956], No. 38798/57. Drawings to Specification. Class 36. A coaxial submarine communication cable has a central conductor comprising a high tensile strength flexible stranded core enclosed by a conducting sheath having a layer of higher conductivity thereon. The core may be steel, the conducting sheath aluminium and the outer layer copper. The cable may be completed by an insulating covering of polythene, an outer copper tape conductor and a P.V.C. sheath. Specifications 703,782 and 778,529 are referred to.
Patent GB-943691-A (GB)
Title: Improvements in and relating to foamed polymers
IPC: C08G18/48
Filed: 1960-11-15
Abstract: A foamed polymer comprises a three-dimensional network of isocyanate modified hydroxypolyalkyleneoxy ethers of glycoside of a monosaccharide, the said polymer containing within the polymer network units having the formula: [=NCO.O(R4O)n]y-S-OR in which R is a monovalent alkyl or alkaryl radical, each R4 is an alkylene radical, S is the organic portion exclusive of reactive hydroxyl groups of a glycoside derived from a simple sugar, y is 3 or 4 and n is a whole number having a value of at least two.  The term "glycoside" refers to a mono-saccharide in which an alkyl or aralkyl radical is attached to a carbonyl carbon atom through an oxygen atom. The sugar constituent of the glycoside, corresponding to S in the formula, is derived from a pentose such as xylose, lyxose, arabinose or ribose; a hexose such as glucose, mannose, altrose, talose, galactose, idose, gulose, fructose, allose, psicose, sorbose or tagatose; or a desoxy derivative formed by the replacement of a hydroxyl substituent by hydrogen, such as the desoxyhexoses, rhamnose and frucose. The reaction products of these with alkylene oxides may be formed in the presence of alkaline catalysts and their molecular weights may range from 450 to 1,250 for producing rigid foams, 800 to 1,800 for semi-rigid and 1,800 to 6,000 for flexible open cell foams. The foaming can be effected by the one-shot, semi-prepolymer or prepolymer methods.  In prepolymer production retarders such as acids, inorganic or organic halides.  Foaming can be effected by means of water or blowing agents such as fluorocarbons in the reaction mixture. As catalysts for the foaming reaction these are specified a number of inorganic and organic bases, arsenic, antimony, bismuth and titanium chlorides bis (cyclopentadrenyl) titanium difluoride, titanium chelates, octyl lead chlorides, acetates or hydroxide, stannous octoate, copper chelates, mercury salts and organotin compounds. As thickening agents for the foams these can be used methoxylated or ethoxylated cellulose, benzyl-, acetyl-, or acetylbutyryl cellulose, hydroxy-ethylated polyvinyl alcohol, vinyl chloride polymers and copolymers, polyvinyl acetate, polyvinyl butyrol, polymeric methyl or butyl methacrylate, polyethylene oxide, bentone and metallic soaps such as aluminium stearate.  These may also be added clays, powdered aluminium, diatomaceous earths, dyes, siloxane -oxy-alkylene copolymer.  In Example (1) foam is prepared from a propylene oxide addition product of a -methyl-D-glucopyranoside; dibutyltin dilaurate, silicone oil surfactant trichloromonofluoromethane and toluene-2,4 and 2,6-diisocyanates.  Starting materials in other, generally similar, examples include the ethylene oxide and mixed ethylene-propylene oxide addition products of a -methyl-D-glucopyranoside, and the propylene oxide addition products of a -ethyl-D-gulactopyranoside, a -methyl-D-xylopyranoside. Specification 892,137 is referred to.
Patent GB-1450041-A (GB)
Title: Information storage
IPC: G03B15/00
Filed: 1972-08-22
Abstract: 1450041 Storing information on microfilm GROOVE CONSULTING CO Ltd and K E GROVES 22 Nov 1973 [22 Aug 1972] 39155/72 Heading G2A Images of alphanumeric and graphic information fed to respective cathode ray display tubes and an image from a microfilm are combined and projected on to microfilm. A combined image may also appear on a monitor screen using a TV camera. As shown, the apparatus comprises tube 6 fed with alphanumeric information, tube 7 fed with graphic information, microfilm holder 9, dichroic mirrors 2, 3 and 13, lenses 4 and 12 combining screen 5, microfilm camera 11, TV camera 14, computer 16 for controlling feeding of information to tubes 6 and 7 and the stepping of the cassettes in holder 9, monitoring screen 17, and processor 15 from which a video output from camera 14 is fed to computer 16 and/or screen 17.
Patent GB-915580-A (GB)
Title: Improvements in or relating to epoxy resins
IPC: C07D301/28
Filed: 1959-11-18
Abstract: A process for the preparation of a hardenable epoxy resin comprises reacting a :b -bis(4-hydroxy-3-methoxyphenyl) ethane and epichlorhydrin in the presence of an alkali and separating the resultant product.  The resins may be hardened by reaction with cross-linking agents optionally in the presence of catalysts, specified cross-linking agents being carboxylic acid anhydrides, organic polyamines, polyamides, polyesters, isocyanates and phenols, catalysts specified being amines, amides, boron trifluoride and triethylene tetramine.  In the example, epichlorhydrin is reacted with a :b -bis(4-hydroxy-3-methoxyphenyl) ethane in the presence of sodium hydroxide.  Specification 877,882 is referred to.ALSO:Hardenable glycidyl polyethers are made by reacting epichlorhydrin with a :b -bis(4-hydroxy3-methoxyphenyl)ethane in the presence of an alkali and separating the reaction product. The example describes a process effected in the presence of sodium hydroxide.  Specification 877,882 is referred to.
Patent GB-1081494-A (GB)
Title: 17ª-(alka-1',3'-diynyl)-steroids
Inventor: FEATHER PETER
IPC: C07J1/00
Filed: 1965-09-14
Abstract: n-Nona-1,3-diyne is prepared from n-amyl bromide and mono-sodio-butadiyne in liquid ammonia (Example 16); and 6-methylhepta-1,3-diyne is prepared from 1,4-dichloro-but-2-yne, sodamide and iso-butyl bromide in liquid ammonia (Example 40).ALSO:Steroids having in position-17 the structure <FORM:1081494/C2/1> (wherein R is C1- 5 alkyl and R1 is H or R), some of which are novel, and the novel 17a -(51-cyclopropyl - penta - 11,31 - diynyl) - 3 - methoxyestra - 1,3,5(10 - trien - 17b  - ol and 17a  - (51-cyclopropyl - penta - 11,31 - diynyl) - 19 - norandrost - 4 - en - 17b  - ol - 3 - one, are prepared by reacting the corresponding 17-oxo-steroids with the lithium, sodium, potassium or magnesium (mono-Grignard) derivative of the appropriate alka-1,3-diyne, subsequently regenerating the required 17b -hydroxy steroid from the complex so formed, and, when required, converting the products into the corresponding 17b -alkoxy steroids by, for example, a process similar to that described in Specification 1,048,255.  The steroids may belong to the androstane or estrane series and may contain a wide variety of substituents and unsaturated linkages.  Carbonyl groups require protection and hydroxy groups are advantageously protected as tetrahydropyranyl ethers.  Products containing a D 2,5(10)-3-alkoxy group may be converted directly or via the D 5(10)-3-ones to the 19 - nor - D 4 - 3 - ones; and D 5 - 3b - ols and D 3,5-3-alkoxy-compounds may be converted to the D 4-3-ones.  (dl) - 3 - Methoxy - 18 - methyl - 8a  - estra-1,3,5(10)-trien-17-one is prepared by hydrogenation of the 1,3,5(10),8(9)-tetraene.  (dl) - 3 - Methoxy - 7#x - methyl - estra-1,3,5(10), 8-tetraen-17-one is prepared by reacting m-methoxybenzyl bromide with diethyl methyl-malonate to give diethyl (m-methoxybenzyl)-methylmalonate, hydrolysing this to the free acid, heating and distilling this to give (dl)-a -(m-methoxybenzyl)-propionic acid, reducing this to (dl) - 2 - (m - methoxybenzyl) - propan - 1 - ol, converting this to (dl)-1-bromo-2-(m-methoxybenzyl)-propane, converting this to the Grignard reagent and reacting with CO2 to give (dl)-b -(m-methoxybenzyl)-butyric acid, heating this with polyphosphoric acid to give (dl)-6-methoxy-3-methyltetral-1-one, reacting this with vinyl magnesium bromide and reacting the product with 2 - methylcyclopentane - 1,3 - dione to give (dl) - 3 - methoxy - 7#x - methyl - 8(14)-secoestra - 1,3,5(10),9(11) - tetraen - 14,17-dione, cyclizing this to (dl)-3-methoxy-7#x-methylestra-1,3,5(10),8,14 - pentaen - 17 - one and hydrogenating this.  The 17a  - (alka - 11,31 - diynyl) - steroids of the invention, which are stated to have estrogenic, progestational, claudogenic, ovulation-inhibiting and gonadotrophin-inhibiting properties, may be made up into pharmaceutical compositions, e.g. tablets, pills, injections and vaginal tampons.
Patent GB-1267886-A (GB)
Title: Ballast weight and tractor front end weight assembly
IPC: B62D49/08
Filed: 1970-08-14
Abstract: 1,267,886. Tractor ballast weights. DEERE & CO. 14 Aug., 1970 [14 Aug., 1969], No. 39320/70. Heading B7H. Plate-shaped ballast weights 20 for mounting on a transverse base weight 12 at the front of a tractor 14 each have transverse bores 48, 50 for receiving clamping screws 44, 46 and vertically extending semi-cylindrical grooves 36, 38 for locating the weights 20 against a centring pin 32 on the base weight 12. Each weight 20 has a hook portion 24 which engages behind a lip 26 on the base weight 12 so that the weights 20 are slidably supported on the base weight. The grooves 36, 38 in the two central weights 20 embrace the centring pin 32 which is secured in a hitch pin bore 18 through a clevis opening 16 in the base weight 12 by a split-pin 34. The clamping screws 44, 46 are inserted in the bores 48, 50 one from each end of the weights 20 and secured on opposite sides of the central weights by elongated clamping nuts 58, 60 received in cutouts 54, 56. Vertical cutouts 64, 66 in the weights 20 provide for the use of a modified form of clamping nut, Fig. 4 (not shown). A handle 62 is provided on each weight 20. The weights 20 are formed with clevis openings 52 and further semicylindrical grooves 74, 76 which form hitch pin bores between adjacent weights. Projections and recesses, Fig. 3 (not shown), formed on opposite sides of each weight 20 below the grooves 36, 38 engage to stabilize the weights.
Patent GB-345664-A (GB)
Title: Improved process of cracking hydrocarbons
IPC: C10G9/42
Filed: 1929-12-24
Abstract: <PICT:0345664/III/1> Oils are cracked in the vapour phase by spraying them by means of a jet of the cracked gases formed in the process itself into a chamber heated externally to above 650 DEG  C.  Oil from a storage tank 1 is fed by gravity to a nozzle 2 from which it is sprayed into a cracking retort 3 by cracked gases from the process supplied by a pump 11.  The products pass through a cooler 5 to a separator 6 where the condensate is removed, and the gases pass through an electric precipitator 7, washer 8, and scrubber 9 to a holder 10 from which they are recirculated by the pump 11.  Very viscous materials may be initially treated by a liquid-phase cracking or hydrogenation process.
Patent GB-871800-A (GB)
Title: Improvements in and relating to composite textile yarns
Inventor: GENTLE ALEXANDER HENDERSON
IPC: D02G1/16
Filed: 1957-12-19
Abstract: 871,800. Bulking yarn. BRITISH CELANESE Ltd. Dec. 18, 1958 [Dec. 19, 1957], No. 39442/57. Class 120(3) Yarn suitable as a carpet pile yarn is produced by twisting together (a) one or more continuous filament viscose rayon yarns, the direction of twist when more than one yarn is used being the same, and (b) one or more continuous filament yarns other than viscose rayon e.g. cellulose acetate, of which the direction of twist is opposite to that of (a) and such that in the composite yarn (a) is /are twisted more than (b), and bulking the composite yarn by passing it through a turbulent zone produced by a high velocity fluid (e.g. steam) jet and collecting the yarn at a speed less than the speed at which it is fed to the jet. Specifications 732,929 and 871,798 are referred to.
Patent GB-345948-A (GB)
Title: Improvements in and relating to electric torches
IPC: A61B1/24
Filed: 1929-12-30
Abstract: 345,948. Electric torches. SMITH & SON (GLASGOW), Ltd., J., 57, St. Vincent Street, and GRINTON, R., 28, Gibson Street, Hillhead, both in Glasgow. Dec. 30, 1929, No. 39708. [Class 39 (ii).] In electric torches of the kind having a spring clip which serves to retain the torch in the pocket and, when withdrawn, can be used as a switch, an additional switch consisting of a spring- controlled contact member actuated by a rotatable cap is provided at the end of the casing, means being provided to retain the contact member in either its on or off position. A tubular member e, Figs. 2 and 5, secured to the end of the casing by an axially bored screw h is provided with two diametrically opposite recesses f, g, Fig. 4, of different depths, which co-operate with a pin j carried by a rotatable cap i secured upon the member e by a spindle-screw k. A helical spring l surrounding the screw k tends to hold its head k<1> in contact with the end of the battery, this position of the switch being attained by pulling the head i outwardly and rotating it until the pin j enters the deeper recess g. To open the switch the pin j is moved into the recess f. Instead of the recesses f, g a cammed surface may be provided to cooperate with the pin j, or the contact may be made or broken by screwing or unscrewing the cap.
Patent GB-1153748-A (GB)
Title: Improvements in or relating to Change Speed Power Transmissions
IPC: F16H47/02
Filed: 1966-09-06
Abstract: 1,153,748. Change speed gear. RICHIER. 6 Sept., 1966 [9 Sept., 1965], No. 39710/66. Heading F2D. A change speed hydromechanical gear comprises a pump P supplying pressure liquid to parallel motors M 1 , M 2 , M 3  selectively clutched at E 1 , E 2 , E 3  to input shafts A 1 , A 2 , A 3  of a fixed ratio gear train. The motors which are not connected to the gear train may, as shown, have their output shafts held by disc brakes F 1 , F 2 , F 3  or may be hydraulically disconnected from the pump P. The clutches and brakes are fluid operated. One or more motors may be connected to the gear train so that with n motors 2n-1 speed ratios are provided.