baber/WOPTO huggingface dataset:
Patent GB-1406389-A (GB)
Title: Photographic colour printing apparatus
IPC: G03B27/73
Filed: 1973-09-14
Abstract: 1406389 Photographic printers AGFAGEVAERT AG 14 Sept 1973 [16 Sept 1972] 43294/73 Heading G2A A colour printer has photo-cells 9, 10, 11 which sense different colours transmitted through an original 3, and a circuit 12 which integrates the photo-cell outputs and controls subtractive filters 13, 14, 15; the circuit 12 including means which, after two of the filters have been inserted in the light path and the third is due to be inserted, prevents insertion of the third and closes a shutter to terminate exposure. This reduces wear on the filter control units. Fig. 2 (not shown), shows part of circuit 12 including AND gates to prevent insertion of the third filter.
Patent GB-965346-A (GB)
Title: Semiconductor devices
IPC: H01L21/60
Filed: 1962-11-15
Abstract: 965,346. Soldering. BROWN, BOVERI & CO. Ltd. Nov. 15, 1962 [Nov. 17, 1961], No. 43338/62. Heading B3R. [Also in Division H1] An electrode plate attached to a semiconductor body is soft-soldered to a further metal member having metal grains pressed into its surface. In the embodiment, a silicon controlled rectifier includes a silicon disc 7 sandwiched between tungsten or molybdenum electrode plates 8 and 9 which are respectively soft-soldered to copper members 1 and 5 forming part of a containing housing. Metal grains 10 are pressed into each copper surface to be soldered by hydraulic bombardment, mechanical hammering or ultrasonic treatment, and may be of molybdenum, tungsten, lead, antimony, chromium, platinum, palladium, gold, iron or nickel. The grains preferably have an average diameter of 0.2 to 0.5 mm. and cover at least 25% of the surface area of the member to be soldered. The housing parts are subsequently brazed in gas-tight fashion and evacuated, or filled with a protective gas.
Patent GB-1205781-A (GB)
Title: Improvements in and relating to sensitized printing plate material
IPC: G03F7/105
Filed: 1967-09-26
Abstract: 1,205,781. Photo-sensitive materials. AZOPLATE CORP. and AMERICAN CYANAMID CO. Sept.26, 1967 [Sept.26, 1966], No.43767/67. Heading G2C. A photo-sensitive material for the production of printing plates which comprises a light transmissive layer with a hydrophilic surface on one side which is coated with a diazo compound which becomes oleophilic on exposure to light and coated on the other side with a layer containing a substance which changes colour on exposure to light such as a photo-chromic substance or an irreversible colour changing substance as in U.S.A. Specification 2,441,561. The photo-chromic layer may be an adhesive so that it may be laminated to a paper, polymeric or metal support and the support or adhesive layer may contain a pigment. The specified diazo compounds are formaldehyde condensates of p-diazo-diphenylamines. Spiropyrans, mercury dithizonate, diberzofurans, anils, sydnones, hydrazones, carbazones, quinolones, chromones and inorganic oxide derivative are specified photo-chromic materials. Two photo-chromic materials may be used and applied in different layers. The light transmissive layer is generally a cellulose ester which is surface saponified but may be a hydrophilic polymer such as gelatine, polyamide or polyarylamide. On imagewise exposure, an oleophilic and a coloured image are produced which on development produces a printing plate.
Patent GB-887753-A (GB)
Title: New anthraquinone vat dyestuffs
IPC: C09B62/024
Filed: 1959-12-24
Abstract: 2 - (21 : 41 - dichlorophenyl) - and 2 (21 - fluorophenyl) - 4 : 6 - dichloro - 1 : 3 : 5 - triazines are obtained by heating with phosphorus oxychloride and phosphorus pentachloride the corresponding 4 : 6-dihydroxy compounds which are made by heating with aqueous potassium hydroxide 2 : 4-dichlorobenzoyl biuret and 2-fluorobenzoyl biuret.  The latter are prepared by heating with dilute acid 2 : 4-dichlorobenzoyl-or 2-fluorobenzoyl-dicyanidamide made by reacting dicyandiamide with the appropriate acid chloride.  2 : 4 - bis - (21 : 41 - dimethylphenyl) - 6 - chloro - 1 : 3 : 5-triazine 2-(21 : 41-dimethylphenyl)-4 : 6-dichloro-1 : 3 : 5-triazine and 2-(11naphthol)-4 : 6-dichloro-1 : 3 : 5-triazine are made by condensing 2 mols of m-xylene, 1 mol of m-xylene and 1 mol of naphthalene respectively with 1 mol of cyanuric chloride in the presence of aluminium chloride.  1 : 4-dichloro-2-(21 : 41-dimethylphenyl)-anthraquinone is made by heating 1 : 4-dichloroanthraquinone-2-carboxylic acid chloride with m-xylene and aluminium chloride.ALSO:The invention comprises anthraquinone vat dyestuffs consisting of 1 : 4-diaminoanthraquinone-2-aryl ketones of which the 4-amino group is directly attached to the carbon atom of the <FORM:0887753/IV (c)/1> grouping which forms a part of a heterocyclic ring.  Heterocyclic rings specified are those of triazine, pyrimidine, pyrazine quinazoline, phthaloylquinazoline, phthalazine, benzthiazole and thiadiazole.  The heterocyclic ring may contain other substituents attached thereto including anthraquinone and anthraquinonebenzacridone substituents.  The dyestuffs are made by heating 1 1 : 4-diamino-anthraquinone-2-arylketone with a heterocyclic compound which contains as part of the heterocyclic ring a group <FORM:0887753/IV (c)/2> Any exchangeable halogen in the product may then be exchanged for an amino or phenoxy residue.  The dyestuffs dye and print fibres of natural or regenerated cellulose. Examples are given.  The 1 : 4-diamino-2-aroylanthraquinone starting material is made by reacting p-toluene-sulphonamide with a 1 : 4-dichloro-2-aroylanthraquinone and hydrolysing the reaction product. In an example, 1 : 4-diamino-2-(21 : 41-dimethyl-benzoyl) 1 : 4-diamino-2-(21 : 41-dimethyl-benzoyl) -anthraquinone is so made.
Patent GB-1218458-A (GB)
Title: Improvements in or relating to logic systems
Inventor: JARVIS DENIS BRIAN
IPC: H03K19/096
Filed: 1968-09-16
Abstract: 1,218,458. Transistor logic and oscillator circuits. ASSOCIATED SEMICONDUCTOR MFRS. Ltd. 8 May, 1969 [16 Sept., 1968], No. 43941/68. Heading H3T. In a four-phase logic circuit the clock pulses # 1 to <SP>#</SP>4 are modified, so that for example # 1  and # 3  are coincident, prior to a logic operation, whereby the logic circuit is preset to a predetermined state, in the example the outputs of the two halves of the circuit being set to " 1" 'negative'. This avoids the MOST's of the circuit assuming random states at the start of a logic operation, without the need for further inputs to the circuit. Once set, the circuit operates normally, the output F1 of the first half of the circuit assuming a state which is the inverse of an input A during the # 1 ,# 2  periods, and the output F2 of the second half of the circuit assuming the inverse of F1 during the # 3  # 4  periods. The clock pulse generator comprises a blocking oscillator (20, Fig. 2, not shown) whose output triggers a free running multivibrator (30) to produce the # 1  and # 3  pulses. These are supplied to respective pairs of MOST's (Fig. 3, not shown) which produce pulses which commence with # (or # 3 ) and end with the start of the next # 3  (or # 1  pulse, these constituting the  #2  (or # 4  pulses. To cause the pulse # 1  and # 3  to occur simultaneously at the start of a logic operation, i.e. when the supply is connected, a transistor (T2) in the multivibrator is held off by a capacitor on its base so that the emitters of the cross-coupled transistors (T3, T4) are left floating and the negative pulse from the blocking oscillator passes through emitter followers (T5, T6) in the collector circuits (of T3, T4) to appear on both output lines # 1 , # 3 . When the transistor (T2) is turned on by charging of its base capacitor to earth the emitters (of T3, T4), normal four-phase clock pulses are produced starting with either <SP>#</SP>1 or # 3  according to whether the base resistor (R5) of one crosscoupled transistor (T3) is permanently connected to earth, or that of the other (T4).
Patent GB-1495656-A (GB)
Title: Transformer tap changing equipment
IPC: B65D90/40
Filed: 1975-10-27
Abstract: 1495656 Transformer tap changing equipment MASCHINENFABRIK REINHAUSEN Gebr SCHEUBACK KG 27 Oct 1975 [9 Nov 1974] 44130/75 Heading H1T Transformer tap changing equipment comprising tap changing switch arrangement 3 in a vessel containing oil, is provided with a separate expansion chamber 8 disposed immediately above the main chamber, the two being separated by a wall 7 which has an aperture 9 through which oil or gas may flow. The aperture 9 is covered by a plate 11 on which is pivotally mounted a relay contact whereby flow of oil or gas through a hole 12 in the plate causes the relay to operate. Instead of the arrangement shown which has an integral welded wall 7, the arrangement may comprise a separate expansion tank overlying the top wall of the main tank, the aperture 7 being provided by aligned holes in the adjacent walls.
Patent GB-1156073-A (GB)
Title: An Evaporator for Anaesthetic.
IPC: A61M16/18
Filed: 1967-09-28
Abstract: 1,156,073. Anaesthetic evaporators. O. H. DRAGER [trading as DRAGERWERK, HEINR & BERNH DRAGER]. 28 Sept., 1967 [17 Dec., 1966], No 44307/67. Heading A5T. An evaporator for anaesthetic to be administered to a patent comprises a container to be partly filled with anaesthetic 5 to be evaporated, a main duct 1, 11, 13 for nutrient gas, a branch conduit leading from the main duct at a first location 2 into the container and back to the main duct at a second location, an adjustable regulating device 10 arranged to control the proportion of nutrient gas which is enriched with vapourised anaesthetic, a venting conduit 14 leading from the interior of the container to its exterior, and an on-off valve 16 arranged so that the venting conduit can be closed while the evaporator is in use and opened when it is out of use, the exterior mouth of the venting conduit being located at a lower level than the first and second locations. The venting conduit is said to prevent the patient receiving a high concentration of anaesthetic when the evaporator is first brought into use. As shown, the evaporator includes a throttle 12 in the main nutrient gas (e.g. air) supply duct, a quantity of water 8 which maintains the temperature of the evaporator constant, a cylindrical wick 6 which takes up the liquid anaesthetic 5, and a spiral-shaped path 7 in the branch conduit.
Patent GB-986839-A (GB)
Title: Focussing aid
IPC: G02B7/34
Filed: 1962-11-26
Abstract: 986,839. Photoconductive devices. CANON CAMERA CO. Inc. Nov. 26, 1962 [Nov. 24' 1961], No. 44647/62. Heading H1K. [Also in Division H4] Various types of photoconductive cells are described in connection with a photo-electric focusing aid (see Division H4). Fig. 6 shows a cell comprising a plurality of mutually insulated parallel photoconductive strips 5, connected. in parallel by end electrodes t. The parallel strips are modified in Fig. 6<SP>1</SP> to a zig-zag shape, to increase the chance of an inevident light boundary between light and shade crossing the strips perpendicularly. Another modification is shown in Fig. 6<SP>11</SP> comprising two arrangements as in Fig. 6, back to back and mutually perpendicular. In the cell of Fig. 7 the strips S are in the form of mutually insulated sectors with central and circumferential electrodes. In the cell of Fig. 71 the strips in the cell of Fig. 6 have been bent into concentric annuli, whilst in Fig. 711 only one strip is used, wound into a spiral. In the cell of Fig. 8 the electrodes are in the form of interleaved combs forming a plurality of parallel broad strips. In the cell of Fig. 9, the photoconductive material is in the form of a disc S and the electrodes are in the form of front and rear discs, the front electrode being transparent or semi-transparent, e.g. a mesh. The photoconductive material may be cadmium sulphide and have a law relating its resistivity R‹ to the incident intensity of illumination I given by where k is a constant and e is a constant usually between 0.6 and 0.8.
Patent GB-940910-A (GB)
Title: Improvements in or relating to apparatus for teaching acrobatics
IPC: A63B69/00
Filed: 1961-12-14
Abstract: 940,910. Hook and eye fastenings. NISSON CORPORATION. Dec. 14, 1961 [Aug. 16, 1961], No. 44850/61. Heading A3H. [Also in Divisions A6 and E2] Arcuate metal hook and eye parts 23, 24 are riveted to the ends of a belt. The part 23 is of channelled section terminating in a hook 26 which selectively engages one of a series of cross-bars 27 in a rectangular strip which comprises the part 24. To enable the hook to engage the eye, spacer plates are placed beneath the ends of the part 24.
Patent GB-1462988-A (GB)
Title: Print element assembly for an on-the-fly printer
IPC: B41J1/30
Filed: 1974-10-17
Abstract: 1462988 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 17 Oct 1974 [29 Nov 1973] 44972/74 Heading B6F A type carrier comprising a plurality of resilient type carrying fingers 32 is provided with a sleeve 34 on each finger which allows limited deflection of the finger in the lateral direction. The fingers may be on a translatable comb 30 as shown or a disc (Figs. 1 to 3, not shown).
Patent GB-1522006-A (GB)
Title: Feline calicivirus vaccine and a process for the production thereof
IPC: A61K39/125
Filed: 1975-10-30
Abstract: 1522006 Feline rhinotracheitis vaccine PITMAN-MOORE INC 30 Oct 1975 [21 Nov 1974] 45026/75 Heading A5B A vaccine for immunizing cats against infection by feline calicivirus (the cause of feline rhinotracheitis i.e. "cat 'flu", and previously known as feline picornavirus) is produced by attenuating virulent feline calicivirus, preferably F9 serotype by propagating for at least 10 one to six day serial passages through a feline tissue cell culture (e.g. of feline tongue cells) in nutrient fluid tissueculture medium at an incubation temperature of 30+2C. The attenuated virus is then harvested to give a fluid vaccine, which may be dried or freeze-dried. The harvested virus preferably has a titre of 10<SP>3</SP> to 10<SP>8</SP> tissue culture infective doses per ml.
Patent GB-1102693-A (GB)
Title: Fluorinated organic compounds
Inventor: TATLOW JOHN COLIN
IPC: C07C323/09
Filed: 1964-03-03
Abstract: The invention comprises fluorinated aromatic compounds of the general formula Z(CF2)m-C6F5 in which Z is H, F or Cl and m is an integer from 3 to 14.  The compounds may be prepared by reacting sulphur tetrachloride with a phenone of formula Z(CF2)m-1-CO-C6F5.  The phenone used as starting material may be prepared by the oxidation of the corresponding carbinol which in turn may be prepared by the action of a pentafluorophenyl Grignard reagent with an aldehyde of formula Z(CF2)m-1-CHO.  Alternatively, the starting phenone may be prepared by the reaction of a pentafluorophenyl Grignard reagent and the corresponding acid chloride which may be made by reacting an acid of formula Z(CF2)m-1COOH and phosphorus pentachloride.  Examples are given of the preparation of perfluorobutylbenzene.
Patent GB-1466078-A (GB)
Title: Treatment of proteinaceous material
IPC: A23J3/20
Filed: 1973-09-26
Abstract: 1466078 Reducing the nucleic acid content of protein BRITISH PETROLEUM CO Ltd 16 Sept 1974 [26 Sept 1973] 45099/73 Heading C3H A process for the reduction of the nucleic acid content of a proteinaceous material comprises contacting the proteinaceous material in an aqueous phase with an active preparation of an extra cellular microbial ribonuclease under conditions whereby the nucleic acid content of the proteinaceous material is reduced. The source of extra cellular microbial ribonuclease is preferably a hydrocarbon utilizing yeast, e.g. Candida lipolytica or Candida tropicalis preferably Candida lipolytica CBS 6331. The proteinaceous material is preferably a single cell micro-organism or a protein isolate derived from a microorganism and may be derived from the same microorganism as the microbial ribonuclease.
Patent GB-1299997-A (GB)
Title: Combination liquid filled container and drinking straw
IPC: B65D77/20
Filed: 1970-09-22
Abstract: 1299997 Portable containers; packages boxes FIRST DYNAMICS Inc 22 Sept 1970 [2 March 1970] 45127/70 Addition to 1253195 Headings B8C B8D and B8P In a modification of the parent Specification a removable tear-strip 15 is adhered to a planar cover 11 of a sealed liquid container 10 over an inwardly-directed wall or cover recess 12 to retain a plastics straw 13 nested therein and seal a straw-insertion opening or aperture 14 in said cover. The recess may be in the form of a groove extending along the diagonal of the wall, or along the diameter or major axis if the container is of circular or elliptical crosssection, and may be widened at 17 intermediate its length to facilitate removal of the straw. The aperture 14 may be of "figure of eight", triangular, or elliptical configuration or formed by slit-flaps, Figs. 4-8 (not shown), to resiliently grip the straw on insertion therethrough. The tear-strip is provided with a free finger tip portion 16. In a modification, Fig. 8, (not shown), the straw is bent to V-form and nested in a recess of triangular configuration, and the straw-insertion aperture is provided in the bottom of the recess. The following abridgments are included in this series since the Specifications were, through an error, not allotted to this Group. References to them will be found in the indexes to this volume.
Patent GB-1183906-A (GB)
Title: Improvements in or relating to Fuel-Injection Internal-Combustion Engines
IPC: F02B23/10
Filed: 1968-09-23
Abstract: 1,183,906. Spark ignition fuel-injection engines. MASCHINENFABRIK AUGSBURGNURNBERG A. G. Sept.23, 1968 [Sept. 22, 1967], No. 45136/68. Heading F1B. In a fuel injection spark ignition engine having a combustion chamber 2 in the shape of a body of rotation, the igniter 6 comprises a bar shaped electrode 7 which extends close to and along the combustion chamber wall. The fuel is sprayed from an injector 5 to form a thin film on the combustion chamber wall slightly upstream of the igniter, the swishing air forming a mixture which is ignited by a spark passing between the electrode 7 and the chamber wall. A step 10 may be formed in the chamber wall in the region of the electrode 7, and this portion of the wall may be coated to resist pitting by the sparks. A second bar electrode may be provided adjacent the first electrode. In Fig. 5 the electrode 7 is inclined and is tapered so that its side is parallel to the chamber wall.
Patent GB-1199273-A (GB)
Title: Improvements in or relating to machines for applying finely divided material to a workpiece
Inventor: HANSON RAYMOND
IPC: A43D25/06
Filed: 1966-08-12
Abstract: 1,199,273. Coating apparatus. BRITISH UNITED SHOE MACHINERY CO. Ltd. 11 Aug., 1967 [12 Aug., 1966; 22 June, 1967], Nos. 45249/69 and 45250/69. Divided out of 1,199,271, Heading B2L. Adhesive composition is applied in finely divided form to a surface of an outsole by a machine comprising means for heating the outsole surface on to which the composition particles are to be dispensed and for heating the particles dispensed on the surface, and conveyor means for transporting the outsole past the heating means and through a screen of particles dispensed by means comprising a hopper having a dispensing surface inclined to the horizontal and having a lip portion extending transversely to the direction of outsole transport, whereby on vibration of the hopper the particles pass upwardly over the dispensing surface to fall in a vertically extending screen from the lip portion. Endless conveyor belts 16, 20, interconnected by a chain 38 and driven by a chain 34, are separted by a distance which is less than the length of an outsole S, and the latter is supported on its passage from belt 16 to belt 20 by a platform 18 spaced from the respective belts. A hopper 50, positioned above platform 18, is carried by an arm 52 adapted to be vibrated by the cyclical energisation of a solenoid 76. Hopper 50 is divided by a transverse plate 58, the lower edge of which is spaced slightly above the base 59 which is inclined upwardly to a front edge or lip 60 positioned above the gap between platform 18 and belt 16. Granulated or powdered adhesive flows from the rear compartment 78 of hopper 50 through the gap between portion 58 and base 59, and after passing upwardly along the latter falls over edge 60 upon a passing insole S. Surplus adhesive passes through the gap between belt 16 and platform 18 and through an aperture in the supporting table into a receptacle. The rate of discharge is adjusted by varying the cyclic frequency of energisation of solenoid 76. Sole S is pre-heated by infra-red lamps in a casing 10, and the coated sole is heated by infra-red lamps in a casing 14. In a modification, Fig. 5, the particles are fluidised in a hopper 180 by the upward passage of compressed air through a porous abase 174. An outlet 178 in the latter is controlled by a pivoted cylindrical valve member 186 having a passage 188 which may be registered with outlet 178. In operation, member 186 is oscillatedto provide an intermittent discharge of particles from hopper 180 into a vibrating dispensing hopper similar to hopper 50.
Patent GB-1027879-A (GB)
Title: Removable sidewall trim and pneumatic tire combination
IPC: B60C13/04
Filed: 1964-11-06
Abstract: 1,027,879. Pneumatic tyres. MOHAWK RUBBER CO. Nov. 6, 1964 [Sept. 21, 1964], No. 45449/64. Heading B7C. A removable sidewall trim 12 for a pneumatic tyre is received in a groove 11 defined by spaced annular shoulders 7, 9 overhanging the edges of the trim. The radial length of the exposed portion of the trim being substantially equal to the combined radial lengths of its unexposed portions so that it will be securely retained. The free edges of the shoulders may be chamfered (Fig. 3, not shown). In a modification (Fig. 4, not shown) several trim rings 12b of circular cross-section are received in corresponding concentric grooves in the tyre sidewall. _______
Patent GB-1181187-A (GB)
Title: Process for the Preparation of Acetic Acid
Inventor: BOICHARD JACQUES
IPC: C07C51/275
Filed: 1968-09-25
Abstract: 1,181,187. Acetic acid. RHONE-POULENC S.A. 25 Sept., 1968 [26 Sept., 1967], No. 45588/68. Heading C2C. Acetic acid is prepared by contacting but-2- ene with nitric acid in the presence of a vanadium compound as a catalyst. The nitric acid may be in aqueous solution (40-90% nitric acid) at a temperature of 20 to 100‹ C. Vanadium compounds mentioned are vanadium pentoxide, vanadium halide, VF 5 , vanadium oxyhalides, VOF 3 , VOBr 3  and VOCl 3 , vanadic sulphate, nitrate or phosphate, alkali metal or ammonium orthovanadates, metavanadates, hypovanadates and hexavanadates, vanadyl sulphate, nitrate and phosphate and vanadium sulphates. The nitrous vapours may be reoxidized to nitric acid either in the oxidation medium or in an external zone by oxygen or air.
Patent GB-1168060-A (GB)
Title: Connecting Element for Toy Building Bricks
Inventor: FISCHER ARTUR
IPC: A63H33/10
Filed: 1968-09-27
Abstract: 1,168,060. Toy building block. A. FISCHER. 27 Sept., 1968 [30 Sept., 1967], No. 46022/68. Heading A6S. A connecting element is constructed as in Patent number 1,103,645 in the form of a hinged building brick, having a torsion spring. the axis of torsion coinciding with the pivotal axis of the hinged element. In the figure the torsion spring 19 is fixed between the two parts of the element 12. Nut and screw parts 9 and 10 engages the outer end faces of shoulders 12 between which the spring is held. The end faces 15, 16 of the torsional spring engage with shoulder 12 pressing parts 6 and 7 into position.