baber/WOPTO huggingface dataset:
Patent GB-291846-A (GB)
Title: Improvements in or relating to electron emission devices
IPC: H01J21/02
Filed: 1927-03-03
Abstract: 291,846. Castellain, A. P., and Horton, R. J. March 3, 1927. Vacuum tubes.-In discharge devices such as thermionic valves, the control electrode is partly or wholly within the space bounded by the cathode or within the projection of the cathode on a parallel 'plane or comprises an open frame or solid body with its edges parallel to the limbs of the frame-like cathode. The cathode may lie in channels on the outside of the control electrode. When the cathode comprises two parallel filaments 11, Fig. 1, supported as shown from the pinch 13, the control electrode may comprise either a flat plate 14 between the filaments 11 and twisted to form a support 15 in the pinch or a rod or tube between and parallel to the filaments 11 and secured at its ends to a flat wire spiral around the filaments. An outer control electrode in the form of a flat spiral grid 16 and an anode 18 are provided. When the cathode comprises a hairpin filament, the control electrode may comprise a flat triangular plate 14<1>, Fig. 3, within, and with its edges parallel to, the filament 11; or one or two similar plates 14<11>, Fig. 10, at the side of and parallel to the filament 11 may be used instead of or in addition to the plate 14<1>. The plate 14<1> may be replaced by a wire frame with limbs parallel to and within the filament, the limbs being joined at their lower ends by a cross-wire within or above the pinch and being integral or separate at their other ends. In modifications, the plate 14<1> is replaced by a cylindrical, conical or pyramidal electrode, solid or hollow or formed of spaced wires or of a spiral wire. The plate 14<1> or its equivalents may be crimped, ribbed or corrugated and may have extensions outside or embracing the filament, for example, may carry wire spirals surrounding the filament and secured to the sides of the plate 14<1> or may comprise two plates with edges bent or curved to embrace the filament partially or wholly or may carry annular rings split to allow the introduction of the filament between the rings and the plate &c. When the filament is in the form of an inverted W, the control electrode may comprise a plate with two triangular extensions. In all forms, additional electrodes such as an outer grid and an anode comprising a cylinder or one or more flat plates electrically connected or separate are provided. Two control electrodes may be connected together within the pinch and a resistance may be connected between this connection and the terminal pin or between either control electrode and the pin. The Provisional Specification describes also modifications with N- shaped cathodes and with a flat spiral control electrode within the cathode. Reference has been directed by the Comptroller to Specifications 1694/15, 143,262, 146,357, 150,359, 165,824, 203,962, 219,019, 229,704, 231,225, 247,027, and 248,648.
Patent GB-271949-A (GB)
Title: Improvements in automatic and semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1926-03-04
Abstract: 271,949. Standard Telephones & Cables, Ltd., Baker, J. H. E., and Moscrip, W. R. March 4, 1926. Automatic and semi-automatic exchange systems.-A line switch having a normal position is prevented from hunting if all the outgoing lines are busy, while if the last available line becomes busy while the switch is hunting, it stops on reaching the normal position. In either case busy tone is sent back in the normal position of the switch. The starting ground for the magnet DM is supplied over the normal terminal N and a common wire CW. When all the succeeding switches are in use, relay Q energizes over a chain circuit, and operates relay CR which removes the starting ground, and connects the tone transformer TT to the terminal N. Relay Q also operates a statistical meter TM. The restoring circuit for the magnet DM is completed over the wiper H.
Patent GB-789926-A (GB)
Title: Improvements in or relating to syringe ampoules
Inventor: BERTRAM ALBERT HEINRICH
IPC: A61M5/34
Filed: 1956-02-28
Abstract: 789,926. Hypodermic injection apparatus. PENICILLIN-GES. DAUELSBERG & CO. Feb. 28, 1956, No. 6116/56. Class 81 (2). A syringe ampoule has a double-ended needle 12 housed in a needle casing consisting of one piece of material forming a retaining ring 4, a thrust ring 7 and a needle sleeve 9, the retaining ring 4 being secured to the ampoule, and a screw ring 10 which is screwable on the ampoule and which, when tightened, disengages the thrust-ring 7 and the needle sleeve 9 from the retaining-ring 4 so that the thrust ring 7 presses a sealing member 13 of the needle 12 on the ampoule mouth and the needle sleeve 9 becomes detached. The ampoule 1 has a solid wall 1a, the periphery of which meets the periphery of an elastic wall 1b tangentially, and a mouthpiece 2 having an aperture sealed by a diaphragm 3. The double-ended needle 12 is loosely mounted in a casing consisting of a retaining ring 4 which is threaded on the mouthpiece 2 of the ampoule 1, a thrust ring 7 and a needle sleeve 9 which is integral with the retaining ring 4 and which contains a disinfecting tampon 16. A screw ring 10 having an integral sleeve 14 is threaded on the retaining ring 4. In use, the screw ring 10 is tightened on the retaining ring 4 so that the sleeve 14 bears against the thrust ring 7 to break away the thrust ring 7 and the needle sleeve 9 along grooves 18, 19. The thrust ring 7 is pressed against a seal 13 on the needle 12 so that the rear end of the needle penetrates the diaphragm 3 and the seal is pressed against the mouthpiece 2 of the ampoule. Liquid is expressed by pressing the elastic wall 1b of the ampoule against the solid wall 1a. In a modification, Fig. 3, the sleeve 14 of the screw ring 10 is provided with circumferential cutting edges 14a which cut the needle sleeve 9 and the thrust ring 7 from the retaining ring 4 which is clipped on the ampoule. A thrust plate 23, which is pressed away from the ampoule 1 by a spring 24, is provided between the thrust ring 7 and the needle seal 131 and serves to push the needle sleeve 9 off the needle 12 and to transmit pressure applied to the thrust ring 7 to the needle 12 for puncturing the ampoule diaphragm 31.
Patent GB-170818-A (GB)
Title: Improvements in or relating to lamps particularly applicable for use on motor and other vehicles
IPC: F21V7/04
Filed: 1921-02-23
Abstract: 170,818. Benjamin Electric, Ltd., (Assignees of Benjamin, R. B.). Oct. 27, 1920, [Convention date]. Vehicle lamps.-A headlight for vehicles comprises two conjoint reflectors 11, 13 with sources of light 10, 12 arranged as shown so that none of the light rays are reflected upwardly. The reflectors are parabolic in axial section and ellipsoidal in transverse section, and the upper reflector 13 projects slightly to the rear of the reflector 11.
Patent GB-1026695-A (GB)
Title: Improvements in or relating to resinous compositions
Inventor: BOAM JOHN JACOB
IPC: C08L63/08
Filed: 1962-02-19
Abstract: A heat-curable composition comprises a blend of an epoxidized polymer or copolymer of a diolefine and an alkylated phenol-formaldehyde resin, an alkylated urea-formaldehyde resin or an alkylated melamine-formaldehyde resin. The blends may also contain styrene; acid accelerators such as phosphoric acid, citric acid and butyl hydrogen phosphate and solvents such as aromatic hydrocarbons. Phenols specified are phenol, cresols and xylenols.  In the examples an epoxidized polybutadiene is used with butylated resins.  According to the Provisional Specification non-alkylated resins may also be used.ALSO:Tin plate or steel are coated with compositions comprising an epoxidised polymer or copolymer of a diolefine and an alkylated phenolformaldehyde resin, an alkylated urea-formaldehyde resin or an alkylated melamine-formaldehyde resin (see Division C3) using a roller or spray gun and the coatings are cured by heating.  According to the provisional Specification non-alkylated resins may be used.
Patent GB-343754-A (GB)
Title: Improvements in sheet-registering devices for printing machines
IPC: B65H9/06
Filed: 1930-02-26
Abstract: 343,754. Feeding sheets. M•SZ‡ROS, J., 87, Charlotte Street, Fitzroy Square, London. Feb. 26, 1930, No. 6361. [Class 100 (i).] Sheet-registering devices.-To assist the correct registration of sheets in printing-machines, a serrated wheel A is arranged near each front lay L and is driven by change-speed mechanism from the machine to advance the sheets against the lays. The wheel A is raised and lowered in synchronism with the front lays preferably by being carried by the front-lay carrier. The sheets may be fed by hand or automatically, and the wheel A is mounted in a lever C pivoted to the bar L<1> of the lay and controlled by a screw D which enables the wheel to be adjusted so that normally it projects above a tongue P projecting from the feed table T by a distance equal to about half the thickness of the sheet. The pressure of the wheel A on the sheet can be varied by adjusting the tension of a spring E by means of a screw F. The wheel A is geared to a shaft I which is driven from a shaft M of the printing - machine by means of stepped pulleys K, K<1>, and a belt N. The wheel A can be driven at a slower speed than the sheet in order to slow down sheets which are fed at a rapid rate, or at a faster speed in the case of sheets which are fed slowly.
Patent GB-712990-A (GB)
Title: Improvements in or relating to solutions of polyacrylonitrile and acrylonitrile copolymers
Inventor: DOWNING JOHN
IPC: C08J3/09
Filed: 1950-06-29
Abstract: Solutions suitable for the manufacture of fibres comprise an acrylonitrile polymer dissolved in a solvent consisting of formic acid alone, aqueous formic acid of concentration at least 70 per cent. an anhydrous mixture of formic acid with one or more substances capable of dissolving polyacrylonitrile, a mixture of formic acid and water with one or more substances capable by themselves of dissolving polyacrylonitrile, or a mixture of formic acid, oxalic acid and water.  The acrylonitrile polymer may be polyacrylonitrile or a copolymer of acrylonitrile with methacrylonitrile, vinyl chloride, vinylidene chloride, vinyl acetate, methyl acrylate, phenylacrylate, or styrene.  Substances capable of dissolving polyacrylonitrile are cyclic anhydrides of dicarboxylic acids, e.g. maleic, succinic and glutaric anhydrides, lactones, e.g. gammabutyrolactone and gamma- and deltavalerolactones, cyclic carbonates of glycols, e.g. cyclic ethylene carbonate.  The fibres and films are preferably made by wet-spinning or wet-casting techniques such as those described in Specification 712,984 and the fibres oriented by stretching, e.g. as described in Specification 636,476.  The compositions may also be used as coatings.
Patent GB-655193-A (GB)
Title: Improvements in or relating to modulated-pulse multiplex signalling systems
IPC: H04J3/00
Filed: 1948-03-02
Abstract: 655,193. Multiplex pulse signalling. PHILIPS ELECTRICAL, Ltd. March 2, 1948, No. 6553. Convention date, March 5, 1947. Drawings to Specification. [Class 40 (v)] In a multiplex phase or duration modulated pulse signalling system, saw-tooth voltages for modulating and for demodulating are obtained by integrating the channel gating pulses at the transmitter and at the receiver, respectively. At the transmitter, Fig. 1 (not shown), a cycle synchronizing pulse controls a chain of successively operating gating pulse generators, each controlling a channel amplifier. One channel is used for synchronizing pulses. In each of the other channels, the variable amplitude signal pulses are mixed with the integrated gating pulses of the particular channel to produce phase-modulated pulses. At the receiver, (Fig. 2 (not shown), the synchronizing pulses are separated by integration and used to control a chain of successively operating gating pulse generators. The gating pulses control demodulators of the type described in Specification 631,171, in which signal pulses are applied to the control grid of a secondary emission valve and a mixing voltage derived from the channel gating pulse by integration is applied to the anode, the demodulated output being taken from the secondary anode. Specification 600,291 and U.S.A. Specification 2,284,444, also are referred to.
Patent GB-836294-A (GB)
Title: Method and means for dissolving gas into liquids
IPC: B01F5/02
Filed: 1958-02-28
Abstract: 836,294. Sewage and water treatment. INGERJORSFIRMAN FLIESBERG A. B., and MEYER, F. Feb. 28, 1958 [March 6, 1957; Nov. 26, 1957], No. 6589/58. Classes 46 and 111. [Also in Groups VI and XII] In a continuous method of aerating sewage, lake water &c. the water &c. is circulated through a vessel 1, Fig. 1, and introduced through nozzles 6 set at a small angle with respect to the upper surface and at a distance from the axis of the vessel so that the surface is beaten to a foam and the liquid caused to rotate about the axis of the vessel and to move downwards in a helical path towards a withdrawal point 9 at a lower portion of the vessel. The nozzles 6 may comprise pipes 5, Fig. 2, arranged tangentially to circles of different radius and having flattened ends which splay the liquid into drops. Alternatively the nozzles 12, Fig. 4, may be arranged fanwise about a central supply pipe 11 or as shown in Fig. 10 downwardly directed tubes 24 may carry cup-shaped members 25 which spread the jets to fan-like shape and are arranged at different heights to bring about a uniform dissolution at different levels. A stationary or rotatable mandrel 10 is fitted in the vessel to prevent a gas filled vortex from reaching the outlet 9. The air is supplied to the vessel through pipes (not shown) and a constant liquid level may be maintained in the vessel by a vent pipe 17 and bleed opening 19 which allow a negligible flow of liquid to escape when the level is high and allow gas to escape at high speed when the level is low. Further correction is obtained at the change in dissolution rate of the gas as the liquid level changes. In a modification the apparatus may be used to circulate liquid in larger containers which may be open or closed to the atmosphere. In one example the vessel 1<SP>11</SP>,Fig. 6, is open-ended and arranged within a container 27 through which the liquid is circulated by a pump 30 driven from a motor 31 arranged outside the vessel. In another example the vessel is supported by floats 48, Fig. 8, in a sewage basin and is continuously supplied with sewage mass by a pump 46 connected to a rubber hose 47 which may be moved to any part of the basin.
Patent GB-726571-A (GB)
Title: A method of and apparatus for treating pulp web, especially in paper making machines
IPC: D21F5/00
Filed: 1953-03-10
Abstract: 726,571. Water extraction in paper manufacture. OHLS, E. March 10, 1953 [April 24, 1952], No. 6592/53. Class 96. Extraction of water from the pulp web 20 of a Fourdrinier paper-making machine is facilitated by steam jets from pipes 25, e.g. over a suction box 18, a couch roll 11, and at a wet press 34. The pipes 25 are in longitudinal sections, each controlled by a valve. Hoods 28 cover the pipes and jets. Specification 257,449, [Class 96], is referred to.
Patent GB-1142804-A (GB)
Title: Medicaments based on avocado oil and/or soya oil
IPC: A61Q19/00
Filed: 1966-02-15
Abstract: 1,142,804. Medicaments comprising avocado and/or soya oil fractions. LABORATOIRES PHARMASCIENCE. 15 Feb., 1966 [15 Feb., 1965(3)], No. 6621/66. Heading A5B. Medicaments comprise an unsaponifiable fraction of avocado oil and/or an unsaponifiable fraction of soya oil together with a solid carrier or an ethanolic solution or gel. The medicaments may be used in the treatment of arthrosis, decalcification, pyorrhea, sclerodermia, inter alia and may include corticosteroids when used in the treatment of inflammatory conditions. The medicaments may be administered orally or applied topically.
Patent GB-1487661-A (GB)
Title: Process for preparing spheroidal alumina particles
IPC: C01F7/02
Filed: 1975-02-17
Abstract: 1487661 Catalysts supported on alumina LABOFINA SA 17 Feb 1975 [18 Feb 1974] 6639/75 Heading B1E [Also in Divisions Cl and C2] A method for preparing aluminium oxide beads which can be used as a catalyst support, comprises (a) producing an aqueous mixture which comprises alumina hydrogel and at least one water soluble ethylenic monomer whose uncrosslinked polymer is water-soluble or forms a gel, and dispensing this mixture as droplets in a hot waterimmiscible fluid; (b) polymerising the monomer contained in each droplet in the said fluid; (c) recovering the resultant beads constituted by alumina hydrogel agglomerated by the polymer: and (d) drying and calcining the beads. The fluid may be a hot gas, through which the droplets are passing counter-current, a column of liquid such as paraffin oil whose density is lower than that of the beads and downwardly through which the hardening droplets fall, or a column of liquid such as chlorinated biphenyl whose density is higher than that of the beads, and upwardly through which, the hardening droplets pass. In the examples, the monomers used are acrylamide, acrylic acid, acrylonitrile, and small amounts of cross linking agents. In the production of catalysts, the beads may be impregnated with one or more compounds capable of generating active catalytic constituents, and the thus impregnated beads are then subjected to a thermal treatment. In the examples, the beads are impregnated with, (a) ammonium molybdate and cobalt nitrate (Exs. 15 and 16) (b) ZnCO 3  and chromium carbonate (Ex. 17) and (c) ammonium chromate (Ex. 18) and calcined to convert these compounds to the oxides. In example 19 the beads are impregnated with chloroplatinic acid. The subject matter of Specification 1487667 is disclaimed.
Patent GB-594576-A (GB)
Title: Improvements in or relating to methods of and apparatus for separating solid and liquid particles from fluids
IPC: B04C3/04
Filed: 1943-04-27
Abstract: 594,576. Centrifugal separators. CARRIER ENGINEERING CO., Ltd., and SAINTY, C. L. April 27, 1943, No. 6657. [Class 23] In a centrifugal air-cleaner comprising banks of vortex tubes in parallel, each tube 1 has a twisted strip 3 for producing the whirl, an outlet plug 8 for clean air and a chamber 13 for the separated dust. The tube is flared at 10 to provide, with the tapered end 9 of the plug, an annular diverging throat 11 leading to the chamber 13. The chamber 13 has an outlet 16 cut through the underside of the tube. The twisted strip 3 is held in place by resilient arms 6 which carry projections 4 engaging a groove in the flared entry end of the tube. The tubes are supported in headers forming the end walls of the air-cleaner. When the cleaner is on the suction side of the fan, the separated dust is discharged from the bottom of the air-cleaner through valves comprising flexible rubber discs which lie normally away from the valve seatings.
Patent GB-729365-A (GB)
Title: Improvements relating to ships' windows
Inventor: GREEN JOHN
IPC: B63B19/00
Filed: 1953-03-11
Abstract: 729,365. Ships windows. BULL'S METAL & MARINE, Ltd. Feb. 26, 1954 [March 11, 1953], No. 6733/53. Class 20 (3).  A ship's window comprises a glass pane 1, Fig. 2, slidably guided in a vertical plane in a frame, auxiliary closures such as a mosquito screen 18 and blackout shutter 19 likewise guided in the frame on the inboard side of the pane 1, and operating means for the pane comprising racks disposed substantially in the plane of the pane below the lateral edges thereof and engaged by pinions 24 on a shaft 25 driven by a removable handle 26 through a worm and worm wheel in a totally enclosed grease-tight gearbox 27, the shaft 25 being located on the inboard side of the plane of movement of the auxiliary closures 18, 19 so as to be clear of them. The frameless glass pane 1 is located at each lateral edge between an L-shaped retaining bar 2, Fig. 4, and a bar 3 secured thereto by tongue 2<SP>1</SP> and groove, and screws 4. The bars 2 have pins 7 engaging inclined slots 8 in upward extensions 5 of the operating racks, the racks and their extensions being guided in channel-shaped side members 10, the outboard flanges 11 of which are screwed at 13 to the ship's structure 12. The pane 1 is supported from the racks by relatively heavy gauge springs enclosed in telescopic casings. On operating the handle 26 the pane 1, retaining bars 2 and racks are lifted until the pane 1 is stopped in the fully raised position. Continued raising of the racks and their extensions 5, permitted by compression of the springs, causesthe pins 7 to move along the slots 8 and thus press the pane 1 outwardly against a sealing strip 15 mounted on the frame. The strip 15 has a rectangular portion 16 housed in an undercut groove 17 and a sealing portion of triangular section. The closures 18, 19 are guided in channels 20, 21 in inboard attachments 22 screwed at 23 to the frame members 10 and may be supported in their channels by slide-lock means. In a modification the gearbox 27 is disposed between the pinions 24.
Patent GB-1527042-A (GB)
Title: Carburetting system for an automobile internal combustion engine having a fuel and an air passage
IPC: H03K17/64
Filed: 1976-02-20
Abstract: 1527042 Semi-conductor switching circuits NISSAN MOTOR CO Ltd 20 Feb 1976 [18 March 1975] 6757/76 Heading H3T In a carburetting system for an automobile I.C. engine, a semi-conductor switching element 10 intermittently allows current to flow through a coil 14 of an electromagnetic value for controlling the air/fuel mixture ratio fed to the engine and a series connection of a resistor 16 and a diode 18 connected across the coil shunts an induced voltage developed across the coil when the semi-conductor element is turned off. This protects the transistor from the induced voltage. The switching element can be a transistor, a FET or a SCR.
Patent GB-525848-A (GB)
Title: Improvements in or relating to the electro-deposition of nickel
IPC: C25D3/12
Filed: 1939-03-02
Abstract: 525,848. Electrodeposition of nickel. POTTS, H. E. (Udylite Corporation). March 2, 1939. No. 6788. [Class41] Nickel is deposited from an acid nickel solution in presence of an aldehyde or ketone of the general formula R1-CO-R2 where R1 is an organic radical and R2 is an organic radical or hydrogen. The bath may contain boric acid and a chloride. Examples of suitable compounds include croton aldehyde, chloral aldehyde and , furfural. Ketones containing two-CO-groups are more effective than those with one only.
Patent GB-932592-A (GB)
Title: Improvements in and relating to gas control valves
Inventor: HAWKES STANLEY ARTHUR
IPC: G05D23/02
Filed: 1961-02-24
Abstract: 932,592. Valves. RADIATION Ltd. Dec. 7, 1961 [Feb. 24, 1961], No. 6807/61. Class 135 Inward movement of knob v unlocks latch w and rotation turns head i having teeth engaging teeth on a rotary disc valve j spring-loaded at n on to its seat to fully open a gas inlet valve passage m, k. On further rotation, the teeth disengage at a smooth portion of the head and disc and the head rotates alone to turn, through a universal pin-and-slot connection 10, a screwed spindle 7 to position the valve e so that it closes on its seat 16 under spring 13 when the rod and tube thermal element g, f, reaches the set temperature in, e.g., a cooker, water heater or other space. The head i and disc j are pressed together by a light spring t and initial setting is performed via stem 11, 14 which is afterwards soldered to head i. Spring 13 holds sleeve 12 over a pin 10a connecting the pin and slot. Specification 834,491 is referred to.