baber/WOPTO huggingface dataset:
Patent GB-942886-A (GB)
Title: Improvements in or relating to printing screens
IPC: B41C1/14
Filed: 1961-12-18
Abstract: 942,886. Stencils. J. R. THIERRY, and KINGSTON SCREENS Ltd. Dec. 18, 1961, No. 45240/61. Heading B6C. A separating rib is formed in the silk or nylon fabric of a screen 6 for use in the silk screen printing process by locating elongated sections 10, 11 of a soft or semi-rigid synthetic resin, e.g. polyvinyl chloride, suitable for welding at a temperature lower than that at which the fabric would be harmed, against portions of the fabric contiguous to a fold therein, and pressing and welding the sections together through the meshes in the fabric at least at the edges of the sections from which the free fabric emerges. The sections may be pressed and welded over their whole widths and in the embodiment of Fig. 2 (not shown) the sections are part of a folded piece of synthetic resin which is placed around a fold in the fabric. The free fabric is separated after the welding operation and stretched in a frame, Fig. 1 (not shown).
Patent GB-1282875-A (GB)
Title: Oleophilic metal sulphides
Inventor: GROSZEK ALEKSANDER JERZY
IPC: C01G1/12
Filed: 1968-09-27
Abstract: 1282875 Oleophilic metal sulphides BRITISH PETROLEUM CO Ltd 16 Sept 1969 [27 Sept 1968] 45973/68 Heading C1A [Also in Division C5] An oleophilic metal sulphide is prepared by grinding the metal sulphide below the surface of an organic grinding liquid to a surface area of at least 10 m.<SP>2</SP>/g. and, either during or after grinding, contacting the metal sulphide with a base. The metal sulphide may be tungsten disulphide, molybdenum disulphide, a lead sulphide or a tin sulphide. The base may be an organic amine, such as propylamine, a butylamine, a hexylamine, or an alkyl substituted hexylamine.
Patent GB-1183319-A (GB)
Title: Improvements relating to Phosphoric Acid and its Use
Inventor: WELLS FREDERICK HERBERT
IPC: C23F3/03
Filed: 1966-10-14
Abstract: 1,183,319. Brightening aluminium. ALBRIGHT & WILSON (MFG) Ltd. Sept. 27, 1967 [Oct. 14, 19661, No.46125/66. Heading C7U. [Also in Division C1] Aluminium is brightened by immersion for up to 5 minutes in a composition maintained at 80-120 ‹C. and containing 50-90% by weight of up-graded wet process phosphoric acid, 1À5-15% by weight nitric acid and 5-25% by weight of water. The aluminium is then removed, washed and dried. Sulphuric acid may be present such that the phosphoric acid: sulphuric acid ratio is not less than 2:1. The upgraded phosphoric acid is made by heating it with a hexavalent chromium compound sufficiently to cause at least partial reduction of the chromium, the chromium compounds remaining in the upgraded acid, (see Division C1). The brightening compositions are made by subjecting crude wet process phosphoric acid to the steps of (in either order) upgrading and addition of nitric acid. The brightening composition may also include copper or cadmium nitrate, boric acid, titanium compounds, ammonia, oxalic acid and/or carboxy methyl cellulose.
Patent GB-1299504-A (GB)
Title: Gas pressure monitor
IPC: H01J41/06
Filed: 1970-09-29
Abstract: 1299504 Cold cathode tubes GES FUR KERNVERFAHRENSTECHNIK mbH 29 Sept 1970 [2 Oct 1969] 46220/70 Heading H1D A pressure monitor for high vacuum, i.e. 10<SP>0</SP>-10<SP>-3</SP> Torr, comprises unheated electrodes 4 and 6 whose separation and construction is such that a cascade discharge occurs when the system pressure reaches or exceeds a predetermined value. The cylindrical housing 1 of methacrylate resin has a gas-tight connection at its lower end with a threaded bush 2 for connection to the vacuum system and the upper end is sealed with a cap 3 of methacrylate. A conical cathode 4 is sealed in the cap 3 and a disc-shaped anode 6 is supported in an insulative holder 7. In a specific example the monitor has a filling of uranium fluoride (UF 6 ), an anode voltage pulse of 20- 60 v., giving a rise time of a few nanosecs at a threshold pressure of 5 Î 10<SP>-2</SP> Torr. The discharge current may be used directly to control apparatus, e.g. the vacuum pump.
Patent GB-1280696-A (GB)
Title: Settling apparatus with provision for flow stabilizing
IPC: B01D21/00
Filed: 1969-09-19
Abstract: 1280696 Settling apparatus REDERIAKTIEBOLAGET NORDSTJERNAN 19 Sept 1969 [20 Sept 1968] 46243/69 Heading B1D In apparatus for separating solids from a liquid suspension which flows downwards between parallel plates 22 from inlet zone 10, solids and some liquid passing into discharge vessel 20 while most of the liquid is drawn off from pockets 25, various devices are included to reduce turbulence. The inlet zone 10 is divided by vertical partitions 12, below which are spaced grids 16, 18 of slotted or honeycomb construction. Passages 24 between plates 22 are divided by baffles (28) extending in the direction of flow. Pockets 25 are bridged by perforate plates 29, across which most of the pressure drop applied by a downstream pump develops. The lower ends of plates 22 may be bent down and dip into the supernatent liquid in vessel 30, and such liquid may be recycled by pump 36 and pipe 34. Plates 22 could be corrugated.
Patent GB-1059186-A (GB)
Title: Variable resistor
IPC: H01B1/24
Filed: 1963-11-25
Abstract: 1,059,186. Retractive switches. J. H. A. LEWIS. Nov. 18, 1964 [Nov. 25, 1963], No. 46455/63. Heading H2B. [Also in Divisions G1 and H1] Combined switching and resistance variation in a plurality of circuits is obtained by movement of a pivoted member 42 carrying sectorshaped pieces 47 of spongy conductive material or spongy insulating material impregnated with conductive powder. Movement of the member 42 first brings one of the pieces 47 into contact with a fixed contact on support 44 and further movement compresses 47 to reduce the resistance in circuit. The lever may be movable in two perpendicular directions only. Alternatively, the four pieces 47 may be replaced by an annular ring of the same spongy resistive material. An on-off variable speed controller for a sewing machine motor may be formed by placing a wedge 6 of spongy resistive material between two plates 1, 2 (Fig. 1, not shown) pivoted together at one end and movable against a spring 9, first to close a circuit and then to reduce the resistance of the resistive material 6.
Patent GB-1494729-A (GB)
Title: Releasable retaining device for freight containers
IPC: B60P7/13
Filed: 1974-10-07
Abstract: 1494729 Twistlock E C COLE 7 Oct 1974 [5 Oct 1973] 46624/73 Heading E2B A releasable container-retaining device comprises a casing 10 and a bolt 26 having a vertical shank 28 mounted for rotation and longitudinal movement relative to the casing and has a head 27 at its upper end with a pair of diametrically opposed radial projections, the bolt being movable longitudinally between withdrawn and release positions and rotatable from its release position to a retaining position, the device also having resilient means e.g. spring 32 which, when the bolt is in the retaining position, bias the bolt toward a locking position. As shown in Fig. 1, the casing has base 13, walls 14, 15, 17, top 18 diverging flanges 16 and mounting plate 19 closing the fourth side. A slot 21 has vertical parts 22, 23 connected at their upper ends by horizontal part 24. Bolt 26 has a head 27 and shank 28 pivoted at 29 to yoke 30 which is connected to control rod 25 projecting through slot 21. A roller 31 fixed to the other end of yoke 30 bears on base 13. A helical compression spring 32 bears against yoke 30 and the underside of top 18. The device may be secured to a lorry chassis and receives a socket 33 secured to a demountable body e.g. a freight container and having bars 34 to engage head 27.
Patent GB-1247884-A (GB)
Title: Photographic process and silver halide materials
Inventor: KALENDA NORMAN WAYNE
IPC: G03C5/305
Filed: 1968-10-02
Abstract: 1,247,884. Photographic process and materials containing zwitterionic compounds. EASTMAN KODAK CO. Oct. 2, 1968 [Oct.2, 1967], No.46678/68. Heading G2C. A process for producing a photographic image comprises developing an imagewise exposed photographic silver halide emulsion layer in the presence of a zwitterionic compound and an anionic compound which is a polymer having at least one anionic acidic substituent. The invention also comprises a sensitive photographic material comprising a support and a sensitive photographic silver halide emulsion layer which contains in the same or different layers thereof a zwitterionic compound and an anionic compound as defined above. The zwitterionic compound may be a sulphobetaine such as (3-sulphopropyl) dimethyldodecylanimonium hydroxide, inner salt, but many zwitterionic compounds are listed. Preferred anionic compounds are polymers having at least one anionic acidic substituent which may be a sulphate, sulphonate, sulphoxylate, sulphite, or sulphinate residue. The anionic compound may be the ammonium salt of dodecylphenylpolyethylene glycol ether sulphate or a copoly (butylacrylate-sulphonopropyl acrylate). Particularly useful are high-contrast photographic silver halide emulsions. The use of the anionic compound with the zwitterionic compound makes it possible to obtain increase in speed due to the zwitterionic compound without the increases in fog often associated with the use of zwitterions alone.
Patent GB-1247553-A (GB)
Title: Photographic materials
Inventor: TUITES RICHARD CLARENCE
IPC: G03C1/053
Filed: 1968-10-03
Abstract: 1,247,553. Polymers containing imidazole groups. EASTMAN KODAK CO. 3 Oct., 1968 [9 Oct., 1967], No. 46899/68. Headings C3A and C3P. [Also in Division G2] Polymers containing imidazole units (optionally substituted) appended to the main polymer chain by means of ester or amide linkages are used as antifoggants in photographic materials (see Division G2). The following preparations of imidazole-containing polymers are illustrated: (a) Polyacrylic anhydride is reacted with 2- aminobenzimidazole to introduce amide-linked benzimidazole groups. (b) Reaction (a) is repeated but using copoly- (ethylene-maleic anhydride) instead of polyacrylic anhydride. (c) Reaction (a) is repeated using 2-amino-6- nitrobenzimidazole, 2-mercapto-6-aminobenzimidazole or 2-(#-hydroxyethyl) benzimidazole instead of the 2-aminobenzimidazole. The first two compounds give amide-linked products; the third gives an ester-linked product. (d) Polyphenyl acrylate (which may be mercapto ethanol-terminated) is reacted with 2- aminobenzimidazole whereby the phenyl ester groups are replaced by benzimidazolyl aminoacyl groups. (e) Chloroacetylated hydroxyethylcellulose containing about 2 chloro-ester groups per repeating unit of the polymer is reacted with 2- mercaptobenzimidazole whereby the chlorine atoms are replaced by benzimidazolylthio groups.
Patent GB-1162600-A (GB)
Title: A Sealing Arrangement
IPC: F16J15/447
Filed: 1967-10-13
Abstract: 1,162,600. Seals. PINTSCHBAMAG A.G. 13 Oct., 1967 [14 Oct., 1966], No. 46927/67. Heading F2B. A sealing arrangement for each shaft 3 where it passes from the measuring chamber M to the gear case R of a rotary piston gas meter comprises two annular discs 2, 4, the latter being mounted on the shaft and sealed to the other disc by labyrinth seals provided in radial and axial gaps. As shown in the two embodiments illustrated by the single drawing, there are two labyrinth seals 8 and 9a, 9b in radial gaps and two labyrinth seals 6, 7 in axial gaps. The clearance spaces in the seal 9a, 9b are of wedge shape and are provided with suction passageways 11 which are made operative by the rotary forces. The disc 4 is designed to move axially when there is a build-up of pressure in the gear case, the seal then becoming a sliding face seal instead of a labyrinth one.
Patent GB-1074317-A (GB)
Title: Improvements in and relating to thermoplastic films
Inventor: HARBARD EDWARD HENRY
IPC: B29C48/10
Filed: 1964-11-18
Abstract: 1,074,317. Tubular films; laminates. T. J. SMITH & NEPHEW Ltd. Feb. 8, 1966 [Nov. 18, 1964], No. 46947/64. Headings B5B and B5N. A process for the production of thermoplastic films comprises extruding a thermoplastics material through an annular die, inflating the tube formed and collapsing the inflated tube between the nip rolls just before the position of the frost line to produce a laminated lay-flat film. The frost line is defined as the point when the transparent extruded material becomes translucent due to crystallization. Specified thermoplastic materials, which when at a temperature above their softening point will stick to each other when pressed together include polyethylene, polypropylene, polyvinylchloride, ethylene/ vinyl acetate copolymers and polyvinylidene chloride. The rate of cooling of the film may be controlled by the temperature of the gas used to form the bubble, which should be high enough to allow the extruded film to expand to the required diameter before the nipping together and resulting lamination. The pressure of the gas may also be adjustable for this purpose and if required the nip rolls may be heated. Preferably the nip rolls are formed from or coated with a non-adherent material, for example polytetrafluoroethylene. The temperature of the atmosphere around the exterior of the extruded tube may be controlled so that the cooling of the tube is slowed down, and this may suitably be effected by the provision of shields around the exterior of the extruded film. In operation, the two internal contacting surfaces of the flattened bubble of film are so hot when they contact each other that the resulting laminated film is free from pin holes extending right through from one side to the other, it being extremely unlikely that any pin holes present in one lamination will coincide with pin holes in the other lamination.
Patent GB-1322845-A (GB)
Title: System for the surface treatment of workpieces
IPC: B24B31/06
Filed: 1971-10-08
Abstract: 1322845 Vibratory finishing CARL KURT WALTHER 8 Oct 1971 [25 June 1971] 47000/71 Heading B3D Apparatus for the surface treatment of workpieees W comprises a vibratory vessel 3 in to which workpieces W and processing members 5 may be charged and a discharge spout 6 coupled to the vessel 3 by a resilient wall section 10, the spout 6 being held stationary during operation to allow build-up of a dam of members 5 and vibrated for discharge after processing. The vessel 3 may be supported on springs 2 and oscillated by means of unbalanced masses in casings 4, the spout 6 being driven by means 8 within a plinth 7. A support 11 for the wall section 10 is adjustably positioned on a baseplate 1.
Patent GB-1164224-A (GB)
Title: Single Flight Earth Boring Auger
IPC: E21B10/44
Filed: 1967-10-17
Abstract: 1,164,224. Boring earth &c. WATSON MFG. CO. 17 Oct., 1967 [2 Nov., 1966], No. 47271/67. Heading E1F. An earth boring auger comprises a single spiral flight 17 secured to a shaft 11 and carrying a single edge blade 21 in a clamp 25 at its lower end, a skirt 43 being secured to the flight to limit the rate of advance of the auger, and an ear 37 on the blade. cleaning the bore wall. A vertical blade may be fixed to the end of shaft 11.
Patent GB-1196550-A (GB)
Title: Improved Heat Resistant Cast Iron
IPC: C22C37/10
Filed: 1968-10-08
Abstract: 1,196,550. Alloy cast iron. MEEHANITE METAL CORP. Oct. 8, 1968 [March 11, 1968], No. 47570/68. Heading C7A. Heat resistant, nodular graphite, cast iron comprises: - C 2À8 - 3À8% Mn 0À2 - 1À5% Si 3À5 - 5% V 0À7 - 2% P less than 0À1% and S less than 0À025%, the balance, apart from impurities, such as residual nodularizing agent (e.g. Mg), being Fe. Excess carbides are present in the form of randomly distributed, cubical shapes in a pearlitic matrix.
Patent GB-1125163-A (GB)
Title: Tablet press
IPC: B30B11/08
Filed: 1965-11-10
Abstract: 1,125,163. Rotary tablet press. PENNSALT CHEMICALS CORP. 10 Nov., 1965 [23 Nov., 1964], No. 47723/65. Heading B5A. Tablets are formed in a rotary tableting press 10 comprising a die table 12 an upper disc 14 rotating therewith and fixed lower part 16, powder being compacted in a die cavity 22 between vertically aligned plungers 18, 20 which are twisted in opposite senses at a pressure less than the compacting pressure to rupture any adhesion between the plunger faces and the tablet. Initially, the upper plunger 18 is withdrawn, the cavity is filled, and as the disc 14 rotates this plunger is depressed by a rail 34 and the plunger heads 30, 32 then pass between vertically aligned rollers 24, 26 respectively and the powder is compacted. The plungers then pass to upper and lower assemblies 42, 40 respectively when cams 36, 38 on the plungers 18 and 20 respectively are rotated in opposite directions by rollers. The upper and lower compression assemblies 42, 40 each comprises spring-loaded spacer blocks urging the plungers 18, 20 downwardly and upwardly respectively. Following this rotation and further compression, the plunger 18 is raised by rail 34 while plunger 20 is raised by a cam 46 to raise the tablet above the die table 12 prior to it being ejected by an arm 88 into a shoot. After ejection, the plunger 20 returns to its " fill " position by means of a pulldown cam 92. In a modification, Fig. 7 (not shown), cammed bushes are keyed to plungers and rotate but do not move vertically therewith. A series of opposed plungers are spaced round the periphery of the disc 14 and each plunger follows the described sequence of operation.
Patent GB-1518298-A (GB)
Title: Selvage forming knitting needle in shuttleless looms
IPC: D03D47/42
Filed: 1975-11-20
Abstract: 1518298 Shuttleless looms YOSHIDA KOGYO KK 20 Nov 1975 [26 Nov 1974] 47759/75 Heading DIE A latched selvedge needle 12 in a shuttleless loom co-operates with an eyed weft inserter 23 and is movable in an arcuate path by a pivotally mounted support 11 The selvedge needle 12 is arcuate to the shape of the curved path it follows.
Patent GB-1182713-A (GB)
Title: Improvements in Apparatus for Reading Human Language Symbols
IPC: G06K9/00
Filed: 1967-10-20
Abstract: 1,182,713. Character recognition. GENERAL ELECTRIC CO. 20 Oct., 1967 [26 Oct., 1966], No. 47853/67. Heading G4R. In character recognition apparatus, two scanning transducers adapted to sense different physical characteristics of character-forming material have respective associated recognition means, the recognition means of one transducer being inhibited by sensing of a character by the other transducer. A document passes beneath a magnetic and an optical transducer in turn, the " magnetic " and " optical " recognition means being essentially as in Specifications 796,579 and 1,182,712 (which are referred to) respectively. Only one recognition means is enabled at any given time, under control of recognition of magnetic and optical cure characters on the document and detection by photoelectric sensors of document edge.
Patent GB-1192037-A (GB)
Title: Preparation of Quinones
Inventor: RENNIE ROBERT ALLAN CAMPBELL
IPC: C07C45/00
Filed: 1967-10-23
Abstract: 1,192,037. Preparation of quinones. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Oct., 1968 [23 Oct., 1967], No. 48092/67. Heading C2C. Quinones are prepared by the oxidation of an aromatic hydrocarbon by contacting with an aqueous solution of a ceric compound. The cerous compound formed in the reaction is preferably oxidized back to ceric compound in an electrolytic cell. The aromatic hydrocarbon is preferably naphthalene, phenanthrene, anthracene, diphenyl or pyrene.
Patent GB-1570660-A (GB)
Title: Electronic timepiece
IPC: G04F5/06
Filed: 1977-06-24
Abstract: An electronic timepiece having a main oscillator circuit and also having a secondary oscillator circuit for reducing the effect therefore of temperature on the accuracy of the timepiece is provided. The main oscillator circuit includes a first time standard and produces a high frequency time standard signal having a first frequency rate that is determined at least in part by the temperature characteristic of the first time standard. The secondary oscillator circuit includes a second time standard and produces second high frequency time standard signals having a second predetermined frequency determined at least in part by the temperature characteristic of the second time standard. Phase detection circuitry is provided for producing a phase detection signal in response to detecting a predetermined frequency difference in phase between the first and second high frequency time standard signals. A display is provided for displaying actual time in response to receiving a low frequency time signal produced by divider circuitry. A frequency adjustment circuit is coupled intermediate the phase detection circuitry and the divider circuitry for adjusting the frequency of the low frequency time signal produced by the divider circuitry in response to the phase detection signal being applied thereto.
Patent GB-1105759-A (GB)
Title: Improvements relating to information transmission systems
Inventor: LANG GORDON RUSSEL
IPC: H04L23/02
Filed: 1966-10-27
Abstract: 1,105,759. Transmission systems. FERRANTI Ltd. 27 Oct., 1966 [30 Oct., 1965], No. 48217/66. Heading G4H. At the transmitter of a transmission system a plurality of input variables A, B, C, D are operated on by a rectangular matrix which may be made into an orthogonal matrix by the addition of either rows or columns, to produce output variables X, Y (of lesser number than the input variables) for transmission, the process being reversed at the receiver to reconstruct the original variables A, B, C, D. In the embodiment described the input variables which may take the value 0 or 1 are operated on by the matrix to produce two variables X = 3(A + C) + B + D; Y = (A-C) - 3(B-D) (using multipliers M1-M8 and summing amplifiers SA1- SA4). At the receiver converters E1 E2 reconstruct A + C, B + D, A-C and B-D and using summing amplifiers SA7-SA10, A, B, C, D are found.
Patent GB-1370631-A (GB)
Title: Apparatus for spraying liquids
IPC: B01D47/06
Filed: 1971-10-18
Abstract: 1370631 Mixing apparatus FULLER CO 18 Oct 1971 [19 Nov 1970] 48319/71 Heading B1C Apparatus 20 for spraying liquids for use with a gas scrubber 1 comprises a first tube 21 having a converging mixing chamber 50 and a diverging outlet 35, a second tube 40 extending within the first tube and terminating in an apertured plate 52, means, such as a pump 12, for supplying liquid to be sprayed to the first tube, and means, such as a compressor or blower 15 for supplying gas at a pressure higher than atmospheric to the second tube. The tube 40 may be adjustable in height as shown. The gas scrubber 1 may be provided with a column 6 up which the apparatus 20 sprays liquid (water) counter-current to the flow of dirty gas which enters the scrubber at inlet 2, the cleaned gas leaving at outlet 3. The liquid may be drained back to a reservoir 8 through a conduit 17.
Patent GB-1507440-A (GB)
Title: Tempering of glass
IPC: C03B27/052
Filed: 1976-11-19
Abstract: 1507440 Glass tempering apparatus SAINTGOBAIN INDUSTRIES 19 Nov 1976 [19 Nov 1975] 48349/76 Heading C1M An apparatus for tempering glass comprises a pair of blowing boxes each provided with a plurality of blowing nozzles, the nozzles being adjustable in an axial direction and being fixed in position after adjustment by an inflatable elastic member. As shown in Fig. 2 inflatable tubes 13 extend between adjacent ranks of nozzles 6, the tubes being supplied with air from a duct 16. This arrangement can be modified by providing a simple tube which meanders between the ranks of nozzles. In a second embodiment (Figs. 3 and 4) a simple member 22 is provided having cylindrical surfaces concentric with each nozzle.
Patent GB-1091796-A (GB)
Title: Improvements in or relating to crown closures for bottles and like containers
IPC: B65D41/42
Filed: 1964-11-30
Abstract: 1,091,796. Crown closures. ARMSTRONG CORK CO. Nov. 30, 1964 [Dec. 5, 1963], No. 48581/64. Heading B8T. A metallic crown closure has a circular tab 6 cut in its top and score lines 8, 9 extending therefrom to the top periphery. A further score line 12 aligned with score line 9 and which may be spaced therefrom extends down the skirt. A liner 14 adhesively secured to the top has a relatively thick central section 15 greater in area than the tabs, and a thinner annulus 16 with concentric sealing rings 17 and a peripheral flange 19.