baber/WOPTO huggingface dataset:
Patent GB-1474073-A (GB)
Title: Photosensitive compositions and presensitized lithographic plates prepared therewith
IPC: C08L61/04
Filed: 1974-06-19
Abstract: 1474073 Photosensitized phenolic resin and acrylic resin compositions MINNESOTA MINING & MFG CO 19 June 1974 [20 June 1973] 27274/74 Headings C3R and C3P [Also in Division G2] A polymeric composition comprises (a) a phenolic resin or a mixture of a phenolic resin and an acrylate resin, the resin having pendant hydroxyl groups, (b) an organic polyisocyanate or dianhydride in an amount of 1-75% by weight based on the resin as cross-linking agent and (c) a quinone diazide or diazosulphone or photosensitizer, the ratio of (c) : (a)+(b) being 1 to 0À1-20 and (a) and (b) being capable of reacting either by standing or on heating. Specified phenolic resins are novolak and resole resins of formaldehyde with unsubstituted or substituted phenols. Specified acrylate resins are copolymers of alkyl acrylates with methylacrylic acid, styrene, acrylonitrile, acrylic acid or t-butylacrylamide. Specified polyisocyanates are aromatic and aliphatic di- and tri-isocyanates and polyaryl polyisocyanate. Aliphatic and aromatic dianhydrides are specified as dianhydrides. A catalyst, e.g. triethylamine, or -methylmorpholine, di- or tri-butyl tin dilaurate, or heat may be used for cross-linking. The composition may contain a dye and is used for producing printing plates (see Division G2).
Patent GB-724197-A (GB)
Title: Automatic electric circuit breaker
IPC: H01H73/56
Filed: 1951-11-21
Abstract: 724,197. Automatic circuit-breakers. MAOLI, L. Nov. 21, 1951 [Nov. 22, 1950], No. 27285/51. Class 38 (5). The circuit-breaker comprises a series bimetal strip 14 arranged to open the contacts 1a, 5a, on a moderate overload, and an electromagnet coil 19 which responds to short-circuits, a button 18 being provided to prevent operation by the strip 14 whenever necessary, the breaker also having a manual operating lever 11. Contact la is carried by a lever 1 pivoted at 2 and held in the closed position shown, against the action of a spring 4, by a pawl 3a on a lever 3 pivoted at 22. Upon deflection, the bimetal strip 14 tilts the lever 3 clockwise through the intermediary of a block 15. When the lever 1 is released, it moves counter-clockwise and a tail portion ld thereof engages a roller 56 on a lever 5 pivoted at 6 and carrying contact 5a, which is thus also moved from its closed position to an open position where it is retained by the engagement of roller 5b with surface 8f of a lever 8. This movement of lever 5 removes the roller 5b from a face 8a on the lever 8 which is pivoted at 9, the lever 8 being moved counter-clockwise by the spring 4 to engage a surface 8b with a roller 1b on lever 1 which is returned to the position shown, where it is again held by a pawl 3a. The breaker is reclosed by tilting lever 11 clockwise, thereby tilting lever 8 through a roller 11b to release the lever 5, which is returned to the closed position by a spring 7. The contacts may be opened manually by tilting lever 11 counter-clockwise, a projection 11a releasing the pawl 3a. The latter may also be attracted to the core 21 of the coil 19. The block 15 has an inclined face, and is mounted on a rod 16 fixed to a bimetal strip 17, which on changes of ambient temperature moves the block 15 laterally of the strip 14 so as to present a higher or lower part of its inclined face to a screw 3b on lever 3. The button 18 has an inclined face which co-operates with the rod 16, so that on depression of the button, the block 15 is moved laterally to a position where movements of strip 14 are not passed to lever 3.
Patent GB-686866-A (GB)
Title: Improvements in spinning artificial filaments, hairs or bristles of acrylonitrile polymers
IPC: D01F6/18
Filed: 1950-11-09
Abstract: The "stretch-spinning" process is applied to the production of filaments, hairs or bristles from polyacrylonitrile or interpolymers thereof with other unsaturated compounds, e.g. vinyl chloride, vinylidene chloride, methacrylic esters and acrylic amides.  Thus, a solution of the polymer in dimethyl formamide, butyrolactone, a -pyrrolidone, N-formyl pyrrolidone or N-formyl pyrrolidine is extruded into water or an aqueous solution which flows in the direction of extrusion.  The aqueous spinning liquid is preferably recycled, a portion being bled-off to recover the solvent therefrom by distillation.  The filaments may be after-stretched in liquids, air or gases.
Patent GB-616585-A (GB)
Title: Improvements in electron beam discharge tubes
IPC: H01J41/16
Filed: 1946-09-13
Abstract: 616,585. Cathode-ray tubes. PHILIPS LAMPS, Ltd. Sept. 13, 1946, No. 27538. Convention date, Sept. 15, 1945. [Class 39 (i)] In electric discharge tubes in which electrons are formed into a beam the cathode has an aperture through which ions travelling towards the cathode pass, without hitting the emitting surface, and impinge on an ion getter placed behind the aperture. The getter may be a plate or spiral of zirconium and may be heated either by thermal contact with the cathode, or by a separate heating element, or by ion bombardment. In the Figure the cathode 2 is supported on a casing 3 having an aperture 4; the cathode is heated by the element 1. A zirconium plate 5 is secured to the casing 3 and is thus heated by conduction to approximately the cathode temperature.
Patent GB-630406-A (GB)
Title: Improvements in spring assemblies for seating and the like
IPC: A47C23/053
Filed: 1947-10-14
Abstract: 630,406. Spring upholstery. BAMFORD SPRING INTERIORS, Ltd., KIDBY, R. E. A., and YOUNG, C. Oct. 14, 1947, No. 27570. [Class 52(iv)] [Also in Group XXXII] In a spring assembly of the kind employing a plurality of compression springs with their bases linked together by tension springs and metal strips, the bases of the springs 15 are shaped to form two opposed elongated loops 16 to receive the tension springs 18 and a central loop 17 for connection to the strips 23 or to the frame 10.
Patent GB-190582-A (GB)
Title: New or improved portable table stand or support for plates, saucers, and other small rticles
IPC: A47B13/16
Filed: 1921-10-18
Abstract: 190,582. Davis, W. J. Oct. 18, 1921. Pedestal, pillar, and like stands.-A atandard b carrying a head a with one or more wire or other supports a for saucers &c. is screwed into a foot c, the dished part c<2> of which may 'be placed under a chair leg. The head a may be hinged to fold up or form a book rest &c.
Patent GB-632450-A (GB)
Title: Improvements in or relating to jiggers for shaping pottery articles
IPC: B28B5/08
Filed: 1947-10-15
Abstract: 632,450. Rotary-table moulding-machines. SULZER BROS. (LONDON), Ltd., WEDGWOOD & SONS, Ltd., J., GUY, A., and WEDGWOOD, C. T. Oct. 15, 1947, No. 27648. [Class 87 (ii)] [Also in Group X] A machine for shaping pottery comprises a head A which has radial arms A<SP>1</SP> provided with U- shaped mould holders A<SP>2</SP> and is rotated step by step to bring the holders in succession to a mould receiving station D<SP>1</SP>, a clay supply station D<SP>2</SP>, a pressing station D<SP>3</SP>, a jiggering station D4 and a mould discharge station D5. A single vertical conveyer E deposits moulds at the station D' and removes them at the station D<SP>5</SP>. At the station D<SP>3</SP>, the clay is pressed to approximate shape by raising the mould by a ram F provided with a mould socket F<SP>9</SP> into engagement with a fixed hollow die F<SP>7</SP> heated by fluid from a pipe F<SP>3</SP>.
Patent GB-760702-A (GB)
Title: Improvements in or relating to lenticular optical screens
Inventor: HOLMAN HERBERT EDWARD
IPC: B24B13/00
Filed: 1953-10-09
Abstract: 760,702. Grinding lenticular screens. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 8, 1954 [Oct. 9, 1953], No. 27765/53. Class 60. [Also in Group XL(a)]  A method of making a lenticular screen composed of a series of cylindrical lenses arranged parallel with one another, comprises relatively traversing the surface of a plate and a grinding wheel, which has formed on its periphery the shape necessary to form the profile for each of the lenses simultaneously, the plate forming the screen or forming a die or press tool from which the screen can be made. The plate is clamped on to the sliding table of a surface grinder having a diamond loaded resinoid wheel which is of greater width than the plate and rotates at a speed between 3,000 and 5,000 r.p.m., the wheel and work being flooded with a lubricant such as water soluble oil. After grinding, polishing is effected in a hydrofluoric acid bath or by an electrolytic process according to whether the plate is of glass or steel. The grinding wheel is shaped to the required profile by mounting it between centres and running it at a relatively slow speed in contact with a wheel which is mounted in a cylindrical grinding machine to run at normal peripheral speed and has a vitrified or silicate bond, such wheel having previously been dressed at a slow speed by a hardened steel crushing roller. The glass screens may be mounted between a photo-electric cathode and an optical system of a pick-up tube for colour television while the die or press tools are used to make plastic screens which are mounted outside the envelope of the pick-up tube.
Patent GB-319014-A (GB)
Title: Improvements in or relating to the manufacture of cellulose acetate silk
IPC: D01F2/28
Filed: 1929-09-13
Abstract: 319,014. I. G. Farbenindustrie Akt.- Ges. Sept. 14, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cellulose acetates, processes for making filaments from.-In the manufacture of acetate silk there is used an acetone-soluble secondary cellulose acetate which on heating with 70 per cent alcohol either does not dissolve or dissolves incompletely. Such cellulose acetates have an acetic acid content of 54-56 per cent. The silks have a high stability to boiling.
Patent GB-628798-A (GB)
Title: Air regulating means for solid fuel grates
IPC: F23L1/02
Filed: 1947-10-18
Abstract: 628,798. Regulating air supply. RADIATION, Ltd., and THOM, G. B. Oct. 18,1947, No. 27944. [Class 126] A horizontally pivoted flap for regulating the air supply to the underside of a solid fuel grate is operated by a rotatable and axially slidable cam actuated by a finger piece, interengageable means being provided on the cam and its support for securing the flap in any desired position. The cam m is mounted on a spindle i which is supported in a boss h in a frame a carrying the fuel grid. The other end 'of the spindle i carries a finger piece j. The cam m engages a projection n on the flap d. The spindle i is slidable axially against the action of a spring p disposed between the finger piece j and the frame a, interengageable teeth and notches being provided on adjacent parts of the cam m and the boss h to prevent accidental disengagement of the cam. Movement of the cam m is limited by a projection o.
Patent GB-790828-A (GB)
Title: Reversible heat-transfer systems
IPC: G05D23/185
Filed: 1956-09-13
Abstract: 790,828. Refrigerating. GENERAL ELECTRIC CO. Sept. 13, 1956 [Sept. 13, 1955], No. 28020/56. Class 29 [Also in Group XXIX] In a reversible compression refrigeration system having indoor and outdoor evaporator-condenser units, 3 and 4 respectively, for heating or cooling an enclosure, a condensate sump 7 is associated with preferably the outdoor units 4 and is provided with temperature responsive drain means. The condensate in the sump 7 is splashed over the outdoor unit 4 by a slinger 12 attached to a fan 8. The drain means comprise a bi-metallic valve 20 attached to a rod 18 fixed in a drain 17. At high temperatures the valve is saucer shaped blocking the drain 17 as shown in Fig. 3, but at lower temperatures, when the outdoor unit may be required as an evaporator or when there is danger of the condensate freezing in the sump, the valve assumes a flat shape (Fig. 1) allowing the sump to drain. In modifications the valve 20 may be caused to move a rod carrying a plug for the drain or may take the form of a bi-metallic rod having a plug. fixed to the end.
Patent GB-920297-A (GB)
Title: Conveying system
IPC: B65G49/04
Filed: 1960-08-12
Abstract: 920,297. Electroplating conveyer. STANDARD TELEPHONES & CABLES Ltd. Aug. 12, 1960 [Aug. 13, 1959], No. 28021/60. Class 78 (1). Articles to be electroplated are carried by hangers 27 and 28 supported by shaft 21, the shaft being furnished with magnetizable disc 20 secured thereto. Disc 20 co-operates with electromagnetic head 3, the head being carried by frame 1 and being movable telescopically relative thereto at 6 and 7 so that it may be raised by motor 2 carried by frame 1. Frame 1 is progressed along the line of the electroplating baths by the engagement of gear-wheel 10 with fixed rack 11, the gear-wheel being driven by motor 8 carried by frame 1. Operation.-Electromagnetic head 3 is energized and engages and grips disc 20 and rises whilst being progressed by frame 1 so that shaft 21 carrying the articles is lifted up from one bath and let down into the next.
Patent GB-1013989-A (GB)
Title: Cathode ray tube
IPC: H01J29/50
Filed: 1963-07-16
Abstract: 1,013,989. Colour television tubes. RADIO CORPORATION OF AMERICA. July 16, 1963 [Aug. 6, 1962], No. 28155/63. Heading H1D. In a plural-gun cathode-ray television tube of the type in which beams of different velocities penetrate to different extents into a superimposed phosphor layer screen, the separate electrostatic focusing systems are energized with the same voltages, thus reducing the number of lead-ins required, but are differently constructed/positioned to have the same focus ing strength. The transfer characteristics of the guns may also be made equal. In the Fig. shown, the spacings between the anodes 46, 50; 47, 51; and 48, 52 of the unpotential lens focusing systems are increased from the lowest velocity L gun to the highest velocity H gun while the spacing between the first anodes 46, 47, 48 and the control electrodes 42 is decreased. Also, the focus cylinders 54, 55 are equal in length and shorter than the focus cylinder 56. The focus cylinders 54, 55, 56 may be replaced by aperture discs differing in internal diameter, Fig. 6 (not shown). To equalize the transfer characteristics or to make them have a particular relationship not necessarily equal, the spacing between cathode and control electrode, or the diameter of the control electrode aperture, may be varied from gun to gun. In another embodiment, Fig. 7 (not shown), cup-shaped screen electrodes are provided between the control electrodes and the respective first anodes. The spacings between the respective anodes and the lengths of the respective first and second anodes are changed from gun to gun so that all the guns are of equal length. Also described are magnetic static and dynamic convergence systems, magnetic beam adjustment and shielding systems and a magnetic system for enhancing the deflection of the H beam in one direction relative to the deflection in the perpendicular direction.
Patent GB-470143-A (GB)
Title: Improvements in or relating to valve discharge water-waste preventors
IPC: E03D1/30
Filed: 1936-10-16
Abstract: 470,143. Valve-discharge water-wastepreventers. GROENIGER, W. C. Oct. 16, 1936, No. 28170. [Class 26] A valve - discharge water - waste - preventer comprises a tank with a lateral outlet 16 in its lower part controlled by a ball 23 floatable within a cage 44 ; the ball is operated through a vertical rod 35 which lifts a pivoted lever 34 associated with the ball. The rod 35 is mounted within an overflow tube 25 communicating with the outlet from the tank and is operated from a shaft 37 through links 42.
Patent GB-1270783-A (GB)
Title: Timer circuit for an automatic telephone answering apparatus
IPC: H04M1/654
Filed: 1970-06-10
Abstract: 1,270,783. Substation apparatus; transistor pulse circuits. PIONEER ELECTRONIC CORP. 10 June, 1970 [11 June, 1969], No. 28200/70. Headings H3T and H4K. A timing arrangement in a telephone answering machine comprises a rectifier circuit for rectifying ringing current, a condenser arranged to be charged by the rectified current, a threshold circuit connected via a resistor to the condenser so as to respond when the charge on the condenser reaches a predetermined level, response of the threshold device being arranged to energize a relay which disconnects the rectifier circuit from the line termination and connects up a matching transformer in its place and bypasses the resistor. As shown ringing current arriving from the line via termination 11 is rectified by diode bridge 12, amplitude limited by diode D and charges a condenser C3. When the charge reaches a predetermined level a Schmitt trigger circuit comprising transistors Tr1 and Tr2 responds energizing a relay connected to the collector of the transistor Tr2. Response of the relay changes over contact y11 disconnecting the rectifier circuit and coupling a message tape 15 to the line. A further contact y12 of the relay by-passes the resistor R1 directly connecting the condenser C3 to the base of the transistor Tr1. The shorting of the resistor increases the potential at the base of the transistor Tr1 and thus maintains operation of the threshold device until the capacitor has discharged to a lower level than would be the case without the shorting effect. Accordingly a longer period of operation can be obtained with a smaller capacitor C3. The capacitor C4 prevents drop out of the relay during changeover of the contact y12.
Patent GB-228487-A (GB)
Title: Improvements in power-driven vehicles fitted with gas-producing plant
IPC: B60K15/10
Filed: 1924-11-25
Abstract: 228,487. Holzgas Auto Generatoren Akt.-Ges., and Heller, J. Nov. 25, 1924. Gas-making plant for the engine of a motor vehicle is arranged with the gas-producer or producers h, and the purifiers i extending through the running-boards c so as to leave the body part of the vehicle available for seats &c. The pipes j connecting the purifiers in series are below the running-boards, the two sets on each side being connected by a pipe k from which a pipe m leads to the engine.
Patent GB-1523931-A (GB)
Title: Sweetening compositions containing prostein sweeteners
IPC: A23L27/30
Filed: 1975-07-04
Abstract: 1523931 Sweeteners TATE & LYLE Ltd 23 June 1976 [4 July 1975 (3)] 28216/75 28218/75 and 28234/75 Heading A2B [Also in Divisions A5 and C6] Sweetening compositions comprise (i) a protein sweetener, e.g. thaumatin or monellin,  (ii) and/or one or more of L-gulose, D-fucose, xylitol, D-arabitol, lactulose, glucoheptose, D (+)-galactose or D (+)-galactosamine or a salt thereof as a taste modifier, and optionally (iii) saccharin (or a salt thereof), unless (ii) is D (+) galactose. Sucrose, glucose, fructose and cyclamates may be included, as may NaCl and/or Ca(OH) 2  to enhance the sugarlike quality. Benzoic acid, SO 2  or sodium metabisulphite may be included as a preservative. The composition may be formulated as a powder, granules or tablets using dextrins, starch, proteins, sorbitol, dextrose and sucrose as carriers, diluents and bulking agents, or as a solution or suspension in water, glycerol, ethanol or oil. Suitable proportions for the components are given. The composition may be incorporated into various foodstuffs, drinks, pharmaceutical preparations and chewing gum.
Patent GB-962739-A (GB)
Title: Improved permanent way
Inventor: FRANCIS WILLEM
IPC: E01B1/00
Filed: 1961-08-03
Abstract: 962,739. Railway track ballast. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 25, 1962 [Aug. 3, 1961], No. 28233/61. Heading E1G. Railway rails 9 are supported by concrete sleepers 2 extending longitudinally of the rails and embedded in a mixture 6 of mineral aggregates and a bituminous binder, the mixture having a void content of not more than 20%, preferably 2-6%, by volume. Metal strips 3 embedded in the sleepers 2 have metallic mesh members welded there. The bed may be in several layers of varying density, the top layer being the most dense. Adjacent sleepers are connected by metallic mesh welded to metal strips 3 protruding from the sleepers. Laths 4 are removed after the mixture 6 has been laid and the spaces fitted with asphaltic joint filling material. In another embodiment, Fig. 2, the concrete sleepers are replaced by metallic mesh members 2 embedded in a mixture 1 as specified above, chairs supporting rails 3 being bolted to plates 10 embedded below the members 2. In a still further embodiment (not shown) the plates 10 and bolts are moulded in reinforced asphaltic concrete blocks themselves embedded in the bituminous mixture 1. Specification 962,738 is referred to.
Patent GB-775781-A (GB)
Title: Improvements in or relating to a two-stroke internal combustion engine having two opposed cylinders
IPC: F02B75/28
Filed: 1954-09-30
Abstract: 775,781. Charging pumps. REGIE NATIONALE DES USINES RENAULT. Sept. 30, 1954 [Nov. 20, 1953], No. 28255/54. Class 7 (2). [Also in Group XXVI] In a twin cylinder two-stroke engine a Rootes type scavenging compressor, is driven from the crank-shaft at engine speed and mounted above the engine as shown.
Patent GB-1294298-A (GB)
Title: 3-nitro-2,6-dihydroxy benzoic acid esters and process for their manufactrue
IPC: C07C205/60
Filed: 1970-06-11
Abstract: 1294298 3 - Nitro - 2,6 - dihydroxy - benzoic acid esters FARBWERKE HOECHST AG 11 June 1970 [14 June 1969] 28362/70 Heading C2C The invention comprises compounds of the Formula I where X is a hydrogen, bromine, chlorine or iodine atom and R is an alkyl C 1-4  radical or a phenyl radical optionally substituted by a halogen atom or a methyl, ethyl or nitro radical. They are prepared by nitration of the appropriate 2,6-dihydroxy benzoic acid ester or appropriate 5-halo-2,6-dihydroxy benzoic acid ester or by halogenation of the appropriate 3-nitro-2,6-dihydroxy benzoic acid ester.
Patent GB-308154-A (GB)
Title: An improved case for cigarettes and other articles
IPC: A24F15/12
Filed: 1928-10-04
Abstract: 308,154. Dobson, A. Oct. 4, 1928. Contents, facilitating access to.-In a case for cigarettes &c. formed from two tray-like portions hinged together, one portion has an open side a, Fig. 1, and the adjacent side of the other portion has a wall b corresponding to the thickness of the case or each portion has one side with one half a open, Fig. 3A, and the other half with a wall b corresponding to the thickness of the case; the open sides are formed with slightly inturned lips c which prevent the cigarettes falling accidentally out of the case. The wall b may be hinged to the case when a lip c is provided adjacent the hinge. Specifications 12648/97, 3316/04, 28504/06, and 17420/11 are disclaimed.
Patent GB-735006-A (GB)
Title: Improvements in thermoplastic compositions
IPC: C08L27/06
Filed: 1953-10-15
Abstract: A rigid thermoplastic composition free from plasticizer comprises from 3 to 35 parts of neoprene and 97 to 65 parts of a vinyl chloride polymer, said composition having been heated to above the fusing temperature of the vinyl chloride polymer.  Vinyl chloride polymers specified are polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate or vinylidine chloride. Fillers, dyes, pigments and stabilizers, such as hydrous tribasic lead sulphate, may be present in amounts having no appreciable effect on the impact strength.  The compositions may be prepared by milling the solids, mixing latices or solutions of the polymers or dispersing one of the polymers in a latex of the other, followed by removal of the dispersion medium.  The products have an impact strength of at least 1.6 foot-pounds and a flexural modulus of at least 100,000 p.s.i. in contrast to similar compositions containing plasticizers such as alkyd resins. Amongst the applications mentioned are making machinery parts, non-corrosive containers and pipes, electrical parts, trays, luggage, furniture, records, cabinets, panelling, wheels, armour, printing plates, tools and die-cutting blocks.  The blends may also be laminated with fibrous material or may be expanded to cellular form.  U.S.A. Specification 2,278,833 is referred to.