baber/WOPTO huggingface dataset:
Patent GB-517049-A (GB)
Title: Improvements in or relating to improving the resistance of metals to corrosion
IPC: C23C22/08
Filed: 1938-07-16
Abstract: 517,049. Coating metals. PYRENE CO., Ltd. July 16, 1938, No. 21201. Convention date, July 20, 1937. [Class 82 (ii)] Phosphate coatings are formed on metals, e.g., iron, steel, or zinc, by treating with a solution which is primarily one of phosphoric acid or a non-coating phosphate or both and which also contains a small amount of a nitrite, nitrate, or sulphite. A non-coating phosphate is one which reacts with the base metal to form a phosphate of the base metal, the metal of the phosphate not being present in the coating as is the case when zinc, iron, manganese, cadmium, calcium, or barium phosphates are used ; examples of non-coating phosphates are the alkali metal phosphates, ammonium phosphates and magnesium phosphates. The solution may contain a copper, nickel, iron or other metal accelerator but the quantity of ions of metals which form coating phosphates must be kept low. The nitrite, nitrate &c. is preferably introduced fairly continuously ; when a nitrite is used it may be added as such, preferably with an acid, e.g., nitric, sulphuric, or hydrochloric, to counteract its alkalinity, or it may be formed in situ by introducing nitrogen dioxide or tetraoxide, or nitric oxide. Where a non-coating phosphate is used in making up the solution an acid which may be phosphoric or a stronger acid such as sulphuric may be added. Solutions are described containing (a) sodium dihydrogen phosphate and sodium nitrite, with or without a copper, nickel, or iron accelerator, (b) phosphoric acid and nitrite, (c) trisodium phosphate, sulphuric acid, and nitrite, and (d) phosphoric acid, sodium dihydrogen phosphate, and nitrite. The coating may be effected by spraying or immersion and the coatings may be rinsed with solutions containing one or more of chromic acid, phosphoric acid, oxalic acid, iron salts, chromium salts, and aluminium salts, the rinsing solution being used preferably at 150- 180‹F. The coatings form a suitable base for paint, lacquer, &c.
Patent GB-203147-A (GB)
Title: Improvements in and applicable to number plates and the like for road vehicles
IPC: G09F21/04
Filed: 1922-08-03
Abstract: 203,147. Stableford, J. S. S. H. Aug. 3, 1922. Signs, supporting and securing.-In vehicle number plates which, with or without a lamp, are pivoted to hinged luggage carriers so as to be turned vertically and held' by a spring in whichever position the carrier may be placed, the locking means comprises a projection 13 on a pivoted lug 10 engaging recesses 14 in a bearing 7. The recesses 14 are at any required angular distance apart. A spring 12 bearing on another pivot lug 11 holds the projection 13 in locked engagement. In a modification, the spring is located between the lugs 10, 11 and bears at one end against a flanged extremity of an enclosing cylinder fixed on the bar 9.
Patent GB-784595-A (GB)
Title: Improvements in vapour, e.g. steam generation
IPC: F28D19/02
Filed: 1955-07-22
Abstract: 784,595. Combustion apparatus. COMBUSTION ENGINEERING, Inc. July 22, 1955 [Aug. 5, 1954], No. 21265/55. Class 51 (1). [Also in Group XIII] Superheated steam, or other vapour, is generated by combusting fuel within a fluidized mass of discrete material which is caused to impart heat to, at least, an evaporator and a superheater, the fuel being supplied to the discrete mass through burners near the locations of said evaporator and superheater in quantities controlled in accordance with the desired steam output and temperature. The boiler may comprise a cylindrical casing 10 housing coaxial cylindrical members 16, the latter constituting an annular air chamber 18, so as to provide a central passage 12 and an annular passage 14 through which the fluidized mass is continuously circulated by the combustion gases, downwardly through the passage 12 and upwardly through the passage 14. The evaporator and superheater 54, 58 are disposed immediately above burners 24, 20 and comprise banks of sinuously-bent tubes having their inlets and outlets connected to ring headers 60, 62; an economizer 52 and steam reheater 56, with associated burner 22, may also be provided. The burners 20, 22, 24 are connected to a common supply conduit 32 and each is controlled by a valve 34, 36, 38, and combustion air conduits 39 extend radially from the chamber 18 across the passage 14 immediately below the said burners, air being supplied to the chamber 18 and conduits 39 through a conduit 40. Combustion gases leave the boiler through a separator 72 and are led to an air heater 76 and exhaust stack, not shown. The rate of circulation of the fluidized mass, which is preferably a highly active oxidizing catalyst, may be controlled by semi-circular valve members 88, 88 which are adapted to be moved towards or away from a perforate spider 82, fixed within the passage 12, by an actuating rod 84.
Patent GB-353673-A (GB)
Title: Improved display apparatus
IPC: A47F3/08
Filed: 1930-07-14
Abstract: 353,673. Moving display apparatus. SYDSERFF, C. B., 10, Suffolk Road, Surrey Hills, Victoria, Australia. July 14, 1930, No. 21298. Convention date, Sept. 11, 1929. [Class 3 (i).] Apparatus for the display of goods comprises a train of cars 6 progressing continuously in a closed circuit upon a rigid horizontal supporting platform 11, the reversing of direction of the cars being effected without their rotation. Each car 6 is attached by a central pivot pin 9 to an endless chain 7 running around pulleys 17, one of which is driven by a motor 19. The pins 9 pass through a slot 10 in the platform, the slot being in part lined with rails 23 between which lie guide rollers on fore and aft pins projecting down from the cars 6. The cars run on castors which are sufficiently broad, or are so disposed, as not to fall into the slot 10. The guide rollers are received at each end of the platform by converging rails 25 which near the apex are formed of pivoted sections 26 connected together by linkage in such a manner that the entry of the roller into the apex causes the entry channel to be barred on the return journey, and the car to pass to the opposite side of the platform without rotation. A hand-operated or an automatic switch may be provided to actuate the apparatus intermittently.
Patent GB-757803-A (GB)
Title: Improvements in or relating to the separation of saturated and unsaturated keto-steroids
Inventor: WALKER THOMAS
IPC: C07J75/00
Filed: 1953-07-31
Abstract: D 4-3-Ketosteroids are separated from mixtures with 3-keto-4:5-dihydroallosteroids by treatment of said mixtures with Girard reagent T or P, forming the Girard derivatives of the respective ketones, treating the mixed derivatives with a water-soluble aldehyde which can displace the saturated ketone from its Girard complex, thereafter removing the liberated saturated ketone from the mixture in aqueous medium, and finally lowering the pH of the aqueous medium to liberate the D 4-3-ketosteroid. Specified aldehydes for the displacement reaction are formaldehyde, acetaldehyde and crotonaldehyde.  In examples: (1) a mixture of cortisone-21-acetate and 4:5-dihydroallocortisone-21-acetate and Girard T or P reagent are refluxed in ethanol containing 10 per cent acetic acid, the product treated with aqueous formaldehyde and the solution poured into excess saturated aqueous sodium bicarbonate, from which 4:5-dihydroallocortisone-21-acetate is extracted with ethyl acetate; acidification of the remaining bicarbonate solution with concentrated hydrochloric acid and pyruvic acid (or hydrochloric acid alone) precipitates cortisone-21-acetate.  (2) As in (1) cortisone-17:21-diacetate is separated from its mixture with 4:5-dihydroallocortisone-17:21-diacetate, isolating the D 4-ketone by extraction of the acidified solution with ethyl acetate.  (3) as in (1) Reichstein's substance S (17-hydroxydesoxy corticosterone) is separated from its 4:5-dihydroallo derivative.  Specification 750,330 is referred to.
Patent GB-934850-A (GB)
Title: Improvements in processes and apparatuses for electrolytic treatments in the barrel
IPC: C23F13/00
Filed: 1960-06-17
Abstract: 934,850. Electrolytic rotary barrels. JACQUET - HISPANO SUIZA. June 17, 1960 [June 20, 1959], No. 21344/60. Class 41. Apparatus for the electrolytic polishing en masse of metallic articles such as screws, hooks and eyelets, comprises a rotatable barrel 1 to receive the articles 5 to be polished and an electrolyte, the barrel being formed of titanium, and an electric circuit in which the barrel is connected so that direct current is supplied to the articles forming the anode through contact with the barrel and from the articles to a cathode 2 immersed in the electrolyte but insulated from the barrel. The barrel, which may have a polygonal section with a charging door for opening 21a, is preferably perforated and at least partially immersed in a bath 13 containing the electrolyte, e.g. at level 14, by mounting it rotatably in bearings 10 and 11 in which rotates shaft portions 9 and 12 driven by wheel and worm 18 and 19. The cathode 2 is preferably of tubular copper and mounted coaxially in the barrel. The outside wall of the cathode may be crenelated and covered by a perforated insulating tube 3, e.g. made of the plastic " Teflon " (Registered Trade Mark); parts 4, 6 and 7 are also insulating. Current densities of 20-40 amps/sq. dm. may be used.
Patent GB-709638-A (GB)
Title: Improvements in means for cooling the scavenging and charging air of internal combustion engines
IPC: F02B29/04
Filed: 1951-09-11
Abstract: 709,638. Rotary heat-exchangers for cooling air. CROSSLEY BROS., Ltd., CARTER, H. D., and HENSHALL, S. H. Sept. 11, 1952 [Sept. 11, 1951], No. 21380/51. Class 64(1) [Also in Group XXVII] in a two- or four-stroke diesel engine supplied with cooled scavenging and charging air, the cooling is effected in a rotary heat-exchanger b, Fig. 1, through any portion of which successively passes the scavenging and charging air and the atmospheric cooling air. The scavenging and charging air enters at a and leaves at c whilst atmospheric air enters at d and leaves at e, both streams flowing through the heat-exchanger b; the flow of atmospheric air is assisted by fan f. The heatexchanger b, which is mounted on a shaft k, comprises a matrix of wire gauze or other material having passages or cells therein, the opposite surfaces of the element being divided by a spring-loaded cross-member g to separate the two streams; the peripheral edge of the heatexchanger is sealed by a ring i and the ends of the members g have spring-loaded pads in contact therewith. In a modification, the heat-exchanger b, Fig. 3, is in the form of a cylinder in the interior of which is a cross-member m; the inlets a, d and outlets c, e of both air streams are approximately at right angles. The member m is provided with spring-loaded seals and the heat-exchanger b is rigid with end pieces p which revolve in casing parts q through which air streams pass.
Patent GB-1089637-A (GB)
Title: Improvements in or relating to casings for electric heaters
Inventor: RUITER JOHN DE
IPC: F24C7/08
Filed: 1965-05-20
Abstract: 1,089,637. Releasable fastenings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 20, 1966 [May 20, 1965], No. 21385/65. Heading E2A. [Also in Division F4] An open fronted box-like casing 1, in which is mounted an electric heater consisting of an elongated heating element enclosed in a quartz tube, is mounted on a wall or other supporting structure by means of a second shorter box-like casing 3 having slots 8, 9, in the bottom edges into which hooks 10, 11 on the casing I engage, means e.g. arcuate slots 16, 17 in the side walls of the casing 3 in which are engaged screws 18, 19 entering threaded bosses on projections 12, 13 on the rear of the casing 1, being furnished to permit of angular adjustment of the casing 1 relative to the casing 3.
Patent GB-460579-A (GB)
Title: Improvements in or relating to light sensitive electron discharge devices
IPC: H01J31/50
Filed: 1935-07-29
Abstract: 460,579. Discharge apparatus. SZEGHO, C., LANCE, T. M. C., and BAIRD TELEVISION, Ltd. July 29, 1935, No. 21484. [Class 39 (i)] Electrons released from a photo-electric surface by an optical image thrown thereon are accelerated and focused upon a fluorescent screen so as to produce an image on the screen. The fluorescent material may be deposited on the anode and the focusing field may be electrostatic or electromagnetic, for example a solenoid surrounding the tube. Or the anode may be ring-shaped and the fluorescent material deposited on the end-wall of the tube. In another form, the photoelectric screen 1 consists of or contains a secondary electron emitting material and the fluorescent screen 6 is similarly constructed or consists of an interlaced mosaic of fluorescent and secondary emitting substances. A ring-shaped anode 8 and focusing coil 7 are provided and an alternating potential is maintained on the electrodes 1 and 6 by a source 9. In another modification, successive secondary emitting electrodes of wire-mesh or reflecting construction, with a single or successive magnetic focusing coils, may be arranged in the path between electrodes 1 and 6. A succession of tubes may be arranged in cascade. The photo-electric material may be active at wavelengths different from those emitted by the fluorescent screen. Specification 444,998 is referred to.
Patent GB-1173865-A (GB)
Title: Electron Gun Unit
Inventor: TSUNETA ASAHIDE
IPC: H01J29/48
Filed: 1968-05-07
Abstract: 1,173,865. Cathode-ray tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. 7 May, 1968 [9 May, 1967], No. 21588/68. Heading H1D An electron gun comprising a cylindrical cathode 12 and an adjacent control electrode having an aperture 22 for the passage of the beam and a generally annular protuberance 23 surrounding the emissive surface of the cathode, is characterized in that the protuberance 23 is interrupted at one or more points to allow optical observation of the cathode-control electrode spacing during assembly of the gun. The gun shown is one of a triple gun assembly for a colour tube and includes support members 17 adapted to engage glass support rods (not shown). A gap 27 between members 17 allows a beam of light to pass through the cathode-grid assembly between the gaps in the protuberance 23 to an optical projection system which produces a greatly enlarged image on a display screen (Figs. 4 and 5, not shown) thereby allowing accurate measurement of the spacing. In a modification, Fig. 7 (not shown), the protuberance 23 is interrupted at only one point.
Patent GB-1346453-A (GB)
Title: Artificial dentures
IPC: A61C13/113
Filed: 1971-04-19
Abstract: 1346453 Artificial dentures SANDOZ Ltd 19 April 1971 [16 Feb 1970] 21711/71 Heading A5R A dental assembly for the in-situ formation of a denture in a patients' mouth, comprises a former 1, contoured substantially to correspond to the shape of a denture and provided with a gum-receiving portion 2, Fig. 1, having cavities 3 into which individual false teeth may be placed, two layers of curable dentureforming material 13, 14, Fig. 5, located over the former and a shim intermediate said two two layers over the gum-receiving portion 2 of the former. In the complete assembly to be inserted into the patient's mouth, a first layer 13 of denture-forming material is in contact with the upper surface of the former 1 and the tops of the teeth 6. The shim 8 is in contact with this first layer 13, a second layer 14, which may be of different material to layer 13, in contact with the other side of the shim 8. In use the teeth 6 are placed in the cavities 3 or cast directly therein and a first layer 13 of denture-forming material spread over the teeth, walls of the former, and the palate portion 4. The shim 8 is firmly pressed down into the first layer. Alternatively denture material can be applied directly to palate portion (10), Fig. 3 (not shown), of the shim 8 before placing it in contact with the former 1. The second layer 14 is spread evenly over the exposed upper surface of the shim 8. The complete assembly is inserted into the patient's mouth and pressure applied by the opposing gum. Catalysts in the denture-forming material cause curing to occur in the mouth sufficient to reproduce the shape of the patient's gum, and the assembly is then removed from the patient's mouth and the former 1 stripped off from the formed denture and the denture trimmed as necessary.
Patent GB-247478-A (GB)
Title: Improvements in machines for combing cotton and other fibres
IPC: D01G19/16
Filed: 1925-08-31
Abstract: 247,478. Fine Cotton Spinners & Doublers Association, Ltd., and Hindley, J. Aug. 31, 1925. Combing-machines.- In a combing-machine of the Heilmann, Naswith, or like type the holding-nippers K, K<1>, Fig. 5, comprise a lower jaw K'. which is concentric with and oscillating about the cylinder shaft E and has a vertical front edge k<4>. The upper jaw K comprises an angular plate with an horizontal portion k<6> and a vertical portion k<3> adapted to engage with and nip the fibres against the front edge k' of the lower jaw. The frame M carrying the nippers is centred on the comb shaft E, which rocks a shaft O carrying an arm o and a yoke o<1> connected to the frame M. The arm P<1> is adjustable on the shaft 0, through a setting arm P<2> and the link p, between the arm P<1> on the shaft O and the eccentric P is adjustable in a slot P<1> concentric with the eccentric. The upper jaw K is pivoted at R<1> in levers R carried by the frame M and is controlled by a spring S. Movement is imparted to it through a cam e<3> on the shaft E engaging a bowl on the trail lever R which is pivoted on a shaft L carried in the frame M. In opening the nipper the jaw K is first moved horizontally away from the jaw K<1> until the levers R contact with set screws k<5> carried by the nipper arms k and then vertically. In closing the movement is vertical until the set screws k<2> engage the lower nipper plate K<1> and then horizontal under the action of the spring S. The lower feed roller N is carried by arms n pivoted on the shaft L and is pressed against the upper roller N' by a spring S'. The upper roller N is rotated by a ratchet T and a pawl t operated by a lever T<1> engaging an inclined surface t<2> adjustably fixed on the bearings of the shaft E. The top-comb G is carried by arms g centred at R' and concentric with the shaft E. The arms g are set by screws g', g<2> bearing respectively on the shaft L and the upper feed roller N. The comb is adjustable along the arms g and is secured by bolts g<3>. The topcomb may be constructed as described in Specification 5130/15. The detaching may be accomplished by nippers as described in Specification 247,332.
Patent GB-585640-A (GB)
Title: Improvements in and relating to advertising and display devices with moving effects
IPC: G09F13/00
Filed: 1944-11-06
Abstract: 585,640. Displaying. WINNEY, W. L. Nov. 6, 1944, No. 21738. [Class 3 (i)] A colour-changing display device comprises a translucent vari-coloured disc 4 rotated by a motor 2 and filtering the light rays from a lamp 15 before they pass through a gap 14 in the top of a casing 1. The casing is surmounted by a light tunnel 7 having reflecting inner faces 8 which direct the rays forward, preferably on to a diffusing screen 16 forming the front of the tunnel. A sign 17 below the screen 16 may be illuminated by the lamp 15. According to the Provisional Specification other types of moving light filter may be provided.
Patent GB-799721-A (GB)
Title: Germicidal preparations
Inventor: SUTTON MELVILLE GEORGE
IPC: A01N59/12
Filed: 1956-07-16
Abstract: A germicidal composition comprising a non-ionic carrier-iodine complex in the form of a solution of iodine with the non-ionic carrier wherein a portion of the total iodine is chemically bound to the carrier and the major portion of the total iodine is loosely bound to the carrier and titratable as free iodine, the carrier being a compound of the formula HO(C2H4O)x(C3H6O)y (C2H4O(x1-H, where y equals at least 15, and preferably the group (C3H6O)y has a molecular weight within the range 1501 to 1800, and (C2H4O)x + ta\xte1 equals 20 to 90 per cent of the total weight of the compound, and the total iodine present in the complex is within a range having as a lower limit the amount to provide a germicidally effective quantity of loosely bound titra-table iodine and as an upper limit about 28 per cent by weight of the complex.  The composition may contain about 0.5 to 3 per cent of an acid, e.g. hydrochloric, compatible with iodine and with the non-ionic carrier.  A nonylphenol ethylene oxide that has preferably from about 8 to 9 mols. of ethylene oxide per mol. of nonyl-phenol may be added to prevent cloudiness in the solution. Solid, water-soluble compositions inert to iodine under conditions of use, e.g. ureanitrate, sodium acid sulphate, solid organic acid, preferably citric acid or urea may be added to serve as protective agents for the iodine.  Lozenges may have incorporated therein 1 to 5 per cent of the composition. Specification 731,603, [Group IV (a)], is referred to.
Patent GB-1476558-A (GB)
Title: Halftone reproduction
IPC: H04N1/405
Filed: 1975-05-21
Abstract: 1476558 Copying by scanning LOGETRONICS Inc 21 May 1975 [15 July 1974] 21893/75 Heading H4F Half-tone reproduction apparatus comprises line-scanning means 15, with line spacing considerably less than the size of a dot in the half-tone screen, which scanning means outputs an electrical video signal to means for continuously weighting the signal with a second signal representing the position of an elemental area within a dot in the half-tone screen, and means for passing only those parts of the weighted signal above a certain threshold value. Co-ordinate transformation element 35 presents memory address signals (dependant on screen ruling and angle data input on lines 28 and 32 and horizontal and vertical sync. information on line 30) to read-only memory 34 which is pre-programmed with positional identification data for every element within the dot-matrix. This data is output to attenuator 20 so that at positions outside the area of the dot the video is so attenuated that it is not passed by threshold discriminator 24. In the area of the dot (Fig. 3, not shown) the attenuation is reduced towards the centre so that the dot size varies according to the grey level of the original. Writer 36 which responds to the quantized signal 26 is synchronized with the scanner 15. The contrast of the half-tone image may be enhanced by "bump" and "flash" control signals varied at 33 and 31. Where specialized non-linear relationships are required between the video signal and the half-tone image, a non-linear amplitude transfer function (40, Fig. 5, not shown) may be applied to the video signal before attenuation. Writing and scanning need not proceed simultaneouslyrecording means may be introduced into the system.
Patent GB-974284-A (GB)
Title: Preparation of hydroxocobalamin
Inventor: SMITH ERNEST LESTER
IPC: A47C17/13
Filed: 1961-06-16
Abstract: Cyanocobalamin is converted to hydroxocobalamin by reacting the cobalamin with sulphite ions to form sulphitocobalamin, reacting the sulphitocobalamin with nitrite ions to form nitritocobalamin, and reacting the nitritocobalamin with a substance decomposing nitrous acid to form hydroxocobalamin. Sulphitocobalamin may be obtained by reacting an aqueous solution of cyanocobalamin with a water soluble sulphite at an acid pH or by passing sulphur dioxide through the solution.  Nitritocobalamin may be obtained by reacting an aqueous solution of the sulphitocobalamin with a water-soluble nitrite or by passing through the solution fumes obtained by reacting a nitrite with a strong acid. Hydroxocobalamin may be obtained by reacting an aqueous solution of the nitritocobalamin with urea, sulphonic acid or an amine. Examples are given.