baber/WOPTO huggingface dataset:
Patent GB-915434-A (GB)
Title: Improvements in and relating to collapsible cartons or containers
Inventor: MCSHANE GEORGE
IPC: B65D5/50
Filed: 1960-06-29
Abstract: 915,434. Display cartons. TEACHER & SONS Ltd., WILLIAM. April 10, 1961 [June 29, 1960], No. 22728/60. Class 18. A carton for displaying bottles has a portion at one end of box-like formation, the portion having an opening 28 to receive the bottleneck. The carton is formed from the blank shown in Fig. 1 and comprises a rear panel 10, sides 11, 12, a front panel 13, end flaps 15 and interlocking flaps 16. Cuts 23 and score lines 22 enable portions 11a, 12a to be folded down (as shown in Fig. 2) in the erected carton. One end of panel 13 is cut and scored as shown so that it can be assembled to box-like form with a tongue portion 32 pressed down to leave an opening for the bottle-neck.
Patent GB-442442-A (GB)
Title: Improvements in or relating to the manufacture of permanent magnet assemblies
IPC: H04R9/02
Filed: 1934-08-07
Abstract: 442,442. Magnets. SWIFT, LEVICK, & SONS, Ltd., and HORSBURGH, G. D. L., Leveson Street, Sheffield. Aug. 7, 1934, No. 22811. [Class 35] [See also Group XXXIX] A permanent magnet assembly comprises one or more main magnets 6 formed with one or more longitudinal ducts or channels 7 into which small auxiliary magnets 9 may be inserted if the flux is deficient. As shown in connection with a telephone receiver, two magnets 6 co-operating with a central pole 14 and a surrounding pole plate 10 are each formed with a central longitudinal duct extending completely through the magnet. Alternatively, dovetail grooves may be formed in the longitudinal faces. After erection, the assembly is magnetized, e.g. by passmg a heavy current through a conducting loop on the pole 14 and the flux or flux density in the air gap 12 is measured. If the flux is deficient, the assembly is dismantled and a small auxiliary magnet 9 is placed in one or both of the ducts 8. After reassembly, the structure is again magnetized. The small magnet is preferably of the same material as the main magnet, but may be of material having a higher coercive force.
Patent GB-347980-A (GB)
Title: Improvements in or relating to winding control systems
IPC: B65H23/18
Filed: 1930-07-29
Abstract: 347,980. Winding webs. SHEPHERD, G. R., 2, Norfolk Street, Strand, London.- (Westinghouse Electric & Manufacturing Co. ; East Pittsburg, U.S.A.) July 29, 1930, No. 22822. [Class 100 (i).] An electric control system for controlling the winding of a web on a core 6 by means of friction rollers 4, 5 comprises separate electric motors 7, 8 for the spindles 9, 10 of the rollers 4, 5, a main generator 23 for supplying power to the motors, and a dynamo 33 which is connected in parallel to the main generator 23 and is driven by a series motor 32 fed from an auxiliary generator 31 driven by the unwinding of the supply reel 2 and acting as a tensioning-device for the web. The motors 7, 8 are compound wound, and in addition to having field coils 12, 18 in series with the respective armatures, are provided with separate excited field coils 13, 18 arranged in parallel circuit and supplied from a source of power such as a battery 14. Adjustable resistances 16, 22, 15, 21 enable the motors to be adjusted so that the torque of the motor 8 is slightly larger than that of the motor 7 so as to ensure a tight winding of the roll. In the arrangement shown in Fig. 1 this is effected by adjusting the circuits so that the current in the coil 19 is less than in the coil 13. In a modification, Fig. 2, the field coils 12, 18 are arranged in series, and the resistances are then so adjusted that the current in the coil 19 is slightly greater than in coil 13, so that the motor 8 will develop a higher torque than the motor 7 during the starting period of the generator 23. The generator 23 is driven by a three-phase motor 24, controlled by a switch comprising a starting switch 56 and a stop switch 58. In order to adjust the tension of the web 2, and to prevent the speeding-up of the dynamo 33 as the speed of the spindle 34 increases due to the diminishing diameter of the roll 2, the current produced by the generator 31 is controlled by inserting a rheostat 39 in the circuit of the field winding 37 of the generator 31. An armature which is controlled by balanced solenoid coils 48, 49 controls a lever 45 which varies the pressure between carbon discs 42 arranged between contacts 43, 44 in series with the winding 37. The solenoid 48 is in aeries with the armatures of the generator 31 and motor 32, and an increase in speed of the armature 36 causes a larger current in the solenoid 48 and thereby reduces the current in the winding 37 owing to the increased resistance of the rheostat. A dashpot 52 controls the movement of the armature of the solenoid.
Patent GB-218882-A (GB)
Title: Improvements in devices for tensioning sprocket chains of cycles, motor cycles and the like
IPC: B62M9/16
Filed: 1923-09-12
Abstract: 218,882. Cooke, J. Sept. 12, 1923. Driving-chains, adjusting.-In a device for tensioning chains, and more particularly those used on cycles wherein the rear hub is provided with several alternative sprocket-wheels of different diameters for gear-changing purposes, a nut 5 on each tension screw 1 is formed with several alternative spaced abutment shoulders 6 adapted to engage a fixed abutment 10 on the frame, so that the gear can be changed without readjusting the screw 1. The shoulders 6 have flat and conical faces, and the nut 5 is turned by means of a milled flange 7 and locked by a nut 15. The tension screws 1 are supported by engaging horizontal grooves in the fork members 8.
Patent GB-598241-A (GB)
Title: Improvement in vitamin a containing preparation and the manner of its production
IPC: A61K31/59
Filed: 1944-11-17
Abstract: An edible vitamin A preparation in powder form is prepared by macerating animal livers, extracting the water soluble constituents by mixing the macerated livers with warm water at about 60 DEG  C. for about 20-30 minutes in the presence of lactic acid, separating the fluid from the water insoluble portion and drying the residue of water insoluble constituents in vacuo at low temperature.  The lactic acid in the extracting fluid is present in amounts from 1 per cent to 0.1 per cent by weight of the mixture.  The dried residue serves as a carrier for fish liver oil.  The fish oil is added in amounts up to one part of fish oil to 15 parts of dried liver residue.  It is preferred that the drying of the liver residue should take place in vacuo in a gaseous atmosphere such as nitrogen or carbon dioxide at a temperature of the order of 100 DEG  to 110 DEG  F., and when dry a small amount of tribasic calcium phosphate is added to keep it dry. It is stated that in the product the stability of the vitamin A potency is very high, the natural anti-oxidants of the liver are substantially intact and the enzymic activity is practically nil. Examples are given of the detailed procedure necessary to carry the invention into effect.ALSO:An edible vitamin A preparation in powder form is prepared by macerating animal livers, extracting the water-soluble constituents by mixing the macerated liver with warm water at about 60 DEG  C. for about 20-30 minutes in the presence of lactic acid, separating the fluid from the water-insoluble portion and drying the residue of water-insoluble constituents in vacuo at low temperature.  The lactic acid in the extracting fluid is present in amounts from 0.1 per cent to 1 per cent by weight of the mixture. The dried residue serves as a carrier for fish oil.  The fish oil is added in amounts up to one part of fish oil to 15 parts of dried liver residue.  It is preferred that the drying of the liver residue should take place in vacuo in a gaseous atmosphere such as nitrogen or carbon dioxide at a temperature of the order of 100 DEG  to 110 DEG  F., and when dry a small amount of tribasic calcium phosphate is added to keep it dry.  It is stated that in the product the stability of the vitamin A potency is very high, the natural anti-oxidants of the liver are substantially intact and the enzymic activity is practically nil.  Examples are given of the detailed procedure necessary to carry the invention into effect.
Patent GB-693555-A (GB)
Title: Photomechanical colour corrected separation prints
IPC: G03F3/06
Filed: 1948-08-31
Abstract: 693,555. Photo-mechanical colour corrected separation prints. JONSSON, A. V. Aug. 31, 1948, No. 22960/48. Class 98 (ii). Two or more different colour separation halftone transparencies of an original continuous tone colour image are made using the same screen with the same orientation of screen pattern, the several transparencies having either negative or positive images including both negative and positive, they are superimposed with one or more of the transparencies out of register, by a fraction of the distance from centre to centre of two adjacent dots of the screen pattern, with the other one or more of the transparencies, and a corrected print is made from the transparencies while so superimposed. A complete set of corrected transparencies may be made using only two screen orientations, one for the black print and one for all colours such as yellow, red and blue, without any danger of moire formation in the final printed multicolour picture; but an example describes production of such a set with a different screen orientation for each member of the set thus:- Black colour.-A photosensitive material is exposed through a green filter and a screening the usual orientation for the black colour to an image of an original picture, and another photosensitive material is exposed through a yellow filter and the same screen in the same orienta. tion, transparencies made from the materials are superimposed out of register as stated above, and a print therefrom is used in making a plate for use with black ink. Yellow colour.-A yellow negative is made through a blue filter and a screen in the usual orientation for the yellow colour, a blue negative is made through an orange-red filter and the same screen in the same orientation, a positive is made from this blue negative, the yellow negative and the blue positive are superimposed out of register and a print therefrom is used in making a plate for use with yellow ink. Red colour.-Red and blue negatives are made with the screen in the usual orientation for the red colour, a positive is made from the blue negative, the red negative and the blue positive are superimposed out of register and a print therefrom is used in making a plate for red ink. Blue colour.-Blue and red negatives are made with the screen in the usual orientation for the blue colour, a positive is made from the red negative, the blue negative and the red positive are superimposed out of register and a print therefrom is used in making a plate for blue ink. Specification 472,415 is referred to.
Patent GB-319460-A (GB)
Title: Means for closing the entrance or access to a room or other enclosure, particularly applicable to strong rooms
IPC: E05G1/026
Filed: 1928-08-09
Abstract: 319,460. Chubb & Son's Lock & Safe Co., Ltd., and Butter, F. J. Aug. 9, 1928. Doors and covers.-An aperture or doorway is closed by a disc rolling on its periphery and rotated into and retained in the open or closed position. The disc may be fireproof and effect an air-tight closure, and may be used for strong-rooms, furnaces, or partitions. For a strong-room, Figs. 10 and 11, a fire-resisting disc h rolls on a beam 24 pivoted at 25 and provided with rollers 40<a> on inclines 40, and is' retained on the beam by a groove 26 engaging a rail 27. The disc is rotated by a saddle 28 with rollers 29 engaging the disc and rollers 29a engaging rails 29<b> in the upper channel 22, the saddle being moved by rack 30 and pinion 31 coupled to an electric motor. The disc is retained and forced against its seat in the closed position by a screwed ring 35 on a threaded boss 36 and normally flush with the disc, the ring being rotated to enter between the rear uprights 21 and on further rotation to press the disc against a. continuous band 21b of resilient insertion in the front frame 21<a>. The ring 35 is rotated by an electrically-driven pinion 39 on a shaft 42 carried by a block 43 which is actuated bv a fork 46 and handle 44. The disc or its platform may be actuated by hydraulic rams.
Patent GB-434995-A (GB)
Title: Improvements relating to current transformers
IPC: B65D81/20
Filed: 1934-08-09
Abstract: 434,995. Transformers; condensers. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 9, 1934, No. 23053. Convention date, Aug. 9, 1933. [Class 38 (ii)] A current transformer has its primary winding 6 and secondary winding 7 arranged in an insulating casing 1, a series arrangement of condensers 12 connected only between high and low potential terminals of the transformer being so disposed in and along the wall of the casing 1 that the potential drop in the condenser arrangement is in the same sense as the potential drop in the casing 1. The casing 1 has a conducting cap 3 to which one of the high tension terminals 4, 5, is connected and is provided with an oiltight base 2 in which low tension terminals 9, 10, 11 are arranged. The annular condenser elements 12 are secured on insulating cylinders 13, 14, by conducting rings 19, 17, 20, 18, and have external diameters slightly smaller than the corresponding internal diameters of the adjacent portions of the casing 1. The conducting ring 19 which is in contact with one end of the condenser chain is connected to a high potential terminal 4 or 5, while the conducting ring 18 which is in contact with the other end of the condenser chain is connected to one of the low potential terminals 9, 10, 11. This latter connection may be made, as shown, to the earthed terminal 9 to which one side of the secondary winding 7 is also connected, the other side of 7 being connected to terminal 10 and the high potential side of the lowest condenser element being connected to terminal 11 so that voltage measurements may be made across terminals 9, 11. The insulating tubes 13, 14 may be perforated to permit oil circulation or may be replaced by a number of bars. As shown in Fig. 1a each ring-shaped condenser element comprises two coating bands separated by insulating bands and wound together in spiral form. One coating band projects from the upper side of the insulating bands and is bent radially inwards at 15, while the other band projects from the lower side of the insulating bands and is bent radially inwards at 16. Series connection between adjacent condenser elements is then made by contact between the lower edge 16 of the upper element and the upper edge 15 of the lower element.
Patent GB-804055-A (GB)
Title: Process for the preparation of urea-formaldehyde moulding powders
IPC: C08L61/24
Filed: 1956-07-25
Abstract: In a process for the preparation of a urea-formaldehyde moulding powder, a finely pulverized cellulosic filler and a setting catalyst consisting of a mixture of melamine sulphate, melamine and hexamethylene tetramine are kneaded into a syrupy urea-formaldehyde condensation product to form granules, said condensation product consisting of a mixture of mono- and dimethylol-ureas obtained by reacting urea and formaldehyde at a neutral or slightly acid pH, and the granules are dried at a temperature of not more than 50 DEG  C. Preferably 30 to 35 per cent of the filler has a particle size of 400 microns, 30 to 35 per cent has a size of 150 microns and the remainder has a size of 25 microns.  In the preparation of the syrup the pH of the reaction mixture is maintained neutral or slightly acid, suitably by adding a buffer, such as a metal carbonate or oxide.  Preferably the cellulosic filler is kneaded into the syrup in one stage, and the catalyst added in a second stage.  In an example a syrup comprising a mono- and dimethylol urea mixture, prepared by reacting urea and formaldehyde in the presence of ammonia and zinc oxide (as a buffer) is kneaded with pulverized paper, a catalytic mixture of melamine, melamine sulphate and hexamethylene tetramine, and zinc stearate as mould lubricant. The kneading is continued at 45 DEG  until granules are formed, and these are then dried at 45 DEG to 50 DEG  C. to give a powder for moulding at 145 DEG  C.
Patent GB-725515-A (GB)
Title: Improvements in and relating to electrical vapour detectors
IPC: G01N27/70
Filed: 1953-08-21
Abstract: 725,515. Electric tests and measurements. GENERAL ELECTRIC CO. Aug. 21, 1953 [Aug. 22, 1952], No. 23124/53. Class 37. [Also in Group XL (a)] In a device of the type described in Specification 648,367, in which the presence and concentration of halogen vapours or their compounds are detected and measured by passing the vapours between suitably prepared electrodes and measuring the alkali ion current produced, the electrode which is heated to produce the alkali ions by reaction with the halogens is a filament 5, while the collector is a tubular electrode 6. Close spacing between electrodes 5 and 6 increases the sensitivity, and as shown, they may even be in direct contact. This is accomplished by coating the positive electrode 5 with a material which acts as an insulator, and also as an emitter of alkali ions in the operating temperature range of 700‹ to 1300‹ C. Suitable materials are the oxides of aluminium, titanium, beryllium, thorium, magnesium, calcium, molybdenum, iron, manganese, silicon, cobalt, or nickel, or the rare earths, to a thickness of a few mils. Even in their most purified forms, these oxides contain sufficient alkali impurities to provide ion emission when heated in the presence of halogens. The negative electrode 6 may be of nickel, copper, silver, or platinum. A convenient use of the device is to go over the surface of a vacuum system with a gaseous halogen compound, in order to detect leaks. Suitable compounds for detection at pressures of the order of 10<SP>-7</SP> mm. are, among others specified, chloroform, ferric chloride, trichlorethylene, and dichlorodifluoromethane.
Patent GB-303472-A (GB)
Title: Improvements in electric batteries and in electrodes therefor
IPC: H01M4/02
Filed: 1928-08-10
Abstract: 303,472. Everett, C. H., and Carr, G. R. Jan. 4, 1928, [Convention date]. Electrodes; electrolytes, circulating.- The electrodes of a battery are constructed so as to allow penetration and circulation of e]ectroh'te, and as shown in Fig. 1 each electrode comprises a central stem 13 from which project a number of arms A carrying corrugated strips 14 to support the active material. All or some of the arms A are hollow and perforated and open at one end and they may be supported at their outer ends by a bar 18. When the battery is in operation the evolved gases pass in and out of the arms A causing a flow of electrolyte from the exterior to the interior of the electrode.
Patent GB-171155-A (GB)
Title: Improvements in or relating to the production of fertiliser
IPC: C05B11/02
Filed: 1920-08-06
Abstract: Phosphatic minerals are pulverized, subject to a froth-flotation process to separate undesirable constituents, and finally treated with sulphuric acid.  In examples in which crude phosphorite, and waste phosphatic material rejected after hand-picking are used as the starting-material, the mineral after grinding is agitated and aerated with water containing oleic acid as the frothing-agent.  Sodium silicate is also added to wet effectively the constituents which are not to be floated.  The froth is drained or mechanically filtered, and the resulting damp powder treated with sulphuric acid.  In place of oleic acid, other frothing-agents such as soap may be used, and when the water is hard a small amount of sodium resinate should be added.  The frothing-agent may be emulsified by adding sodium oleate or sodium resinate before mixing with the mineral pulp.  When it is necessary to repeat the flotation process, the concentrate is agitated and aerated with water containing sodium silicate without the addition of oleic acid or other frothing-agent.
Patent GB-1326484-A (GB)
Title: Dispersion of sec-alkyl hydroquinones in a hydrophilic colloid and use thereof in a photographic material
IPC: G03C1/815
Filed: 1971-04-19
Abstract: 1326484 Secondary - alkyl - hydroquinones EASTMAN KODAK CO 19 April 1971 [6 March 1970] 23189/71 Heading C2C [Also in Divisions C3 and G2] Secondary dodecyl hydroquinone obtained as a mixture of 12 of the 15 possible disubstituted isomers and 4 of the 5 possible monosubstituted isomers is prepared by heating hydroquinone and silica-alumina catalyst in toluene, removing the toluene-water azeotrope, adding 1-dodecene and heating at 220-225‹ C. Secondary nonyl hydroquinone obtained as a mixture of isomers is prepared similarly but using 1-nonene instead of 1-dodecene and nitrobenzene instead of toluene. Secondary hexadecyl hydroquinone obtained as a mixture of isomers is prepared similarly but using 1-hexadecene instead of 1-dodecene.
Patent GB-1520587-A (GB)
Title: Doped silica glass
IPC: C03B37/014
Filed: 1976-06-04
Abstract: 1520587 Doped silica glass QUARTZ & SILICE 4 June 1976 [6 June 1975] 23194/76 Heading C1M Alumina-doped silica glass is obtained by simultaneous deposition of silica and alumina on a support, the alumina being produced during the deposition by oxidation of aluminium powder or gaseous aluminium produced by vaporizing the Al powder. In a first embodiment, Al powder and a silicon compound (e.g. SiCl 4 ) are introduced into an oxidizing plasma flame. In a second embodiment, the Al powder and silicon compound are introduced through tube 24, with a non-oxidizing gas (e.g. He or Ar), into a non-oxidizing plasma flame to vaporize the Al. The plasma flame is produced by an arc established by electrodes 22, 23 and induction winding 17. The vapour mixture then passes into a further, oxidizing plasma flame (O 2  or air being introduced via jets 20) in which the Al and Si-compound are oxidized. In a third embodiment, only Al powder is supplied to the non-oxidizing plasma flame, the silicon compound being introduced directly into the oxidizing flame (via jets 25). The alumina-doped glass 16 is deposited on a rotating silica support 15. The glass may also be deposited on the lateral surfaces of a rod-like support (Fig. 4, not shown). The alumina content of the glass may be progressively decreased so as to obtain a radial refractive index decrease, and the bar obtained may be drawn to an optical fibre (after removal of the support, if this is not also Al 2 O 3 -doped silica).
Patent GB-645326-A (GB)
Title: Improvements in or relating to electric arc furnaces
IPC: F27D11/08
Filed: 1948-09-03
Abstract: 645,326. Electric arc furnaces. COMPAGNIE DES FORGES ET ACIERIES DE LA MARINE ET D'HOMECOURT SOC. ANON. Sept. 3, 1948, No. 23273. Convention date, Sept. 5, 1947. Drawings to Specification. [Class 39(iii)] In an electric arc furnace having electrodes extending through the roof, the melting of the charge is accelerated by moving the operative ends of the electrodes from a normal operating position to successive different points of the charge, the electrodes being returned to the normal operating position when sufficient charge has been melted to protect the furnace sole. The electrodes may undergo rectilinear horizontal displacements and they are raised and lowered at the beginning and end respectively of each horizontal displacement. Flaps are provided on the periphery of the roof to cover the furnace when the roof is moved to displace the electrodes.