baber/WOPTO huggingface dataset:
Patent GB-790971-A (GB)
Title: Improvements in or relating to self-filling electric batteries
IPC: H01M50/618
Filed: 1956-05-23
Abstract: 790,971. Forcing liquids by gaseous pressure. FRANCAIS, ETAT. May 23, 1956 [May 24, 1955], No. 15979/56. Class 102(2). [Also in Group XXXVI] In a device for priming a closed inert battery 1 with electrolyte, the electrolyte is contained in a glass bulb 4 held within a hollow support 5, the lower end 3 of which is connected by a pipe 2 to the battery via a nipple 23 containing a non-return ball valve. The upper end 6 of the support encloses the tip 7 of the glass bulb and is connected by a passage 13 to a chamber 10 containing an electrically-ignitable powder charge 12. When the charge is ignited the gas produced causes a steel ball 14 to rupture a thin retaining disc 30 and break the glass bulb 4 and then forces the electrolyte into the battery. A screen 21 is fitted to prevent glass fragments from entering the pipe 2 and wax may be cast between the glass bulb and the support 5.
Patent GB-680098-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F41/00
Filed: 1951-07-05
Abstract: 680,098. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. July 5, 1951 [July 19, 1950], No. 15992/51. Class 38 (ii). An electromagnetic induction apparatus com. prises a transformer having a magnetizable frame 1 and a winding 2 having insulated leads 3 extending therefrom covered with an external insulating material, a bracket 6a being fixed to the frame and having an apertured overhanging flange 6 through which the leads 3 extend, a resilient sealing gland 5 encircling each lead 3, a further apertured clamping plate 7 formed of pre-cast insulating compound and disposed to hold the glands 5 in clamped relation against the leads 3 between the plate 7 and flange 6 and an outer cast body 4, of an insulating compound .compatible with that of the plate 7, completely embedding the transformer and at least part of the plate 7 to form a fluid-tight bond therewith so as to completely seal the transformer and provide mechanical protection for the leads 3 where they pass out of the casing. The positions of the parts 6, 7 may be interchanged.
Patent GB-333322-A (GB)
Title: Improvements relating to cupola furnaces
IPC: F27B1/16
Filed: 1929-05-24
Abstract: 333,322. Fletcher, J. E., and British Cast Iron Research, Association. May 24, 1929. Cupola furnaces.-In a cupola furnace in which air is supplied from a common source to main and supplementary tuyeres the control of the air supply is effected at the main tuyeres only. In the apparatus shown, in which the main tuyeres c and the supplementary tuyeres j at a higher level are supplied from the common wind box b, the tuyeres c are controlled by hollow sphericalended screwed valves d having end apertures h, i for allowing inspection of the interior of the furnace. In a modification each of the tuyeres c has an upturned extension in the wind box controlled by a ball valve. Gas oil or pulverized fuel may be supplied through the main tuyeres or through additional tuyeres at a lower level. Specification 6386/12 is referred to.
Patent GB-349301-A (GB)
Title: Improvements in the manufacture and production of double salts
IPC: C01F11/42
Filed: 1930-05-24
Abstract: Basic nitrates of divalent metals such as calcium, barium, strontium, magnesium or zinc are combined with nitrates of monovalent metals or radicles, nitrates of alkali metals, especially potassium, and of ammonium and urea being specified or with a mixture thereof, to give double salts of the general formula Me<II>(OH).NO3.Me<I>NO3.  The reaction may be effected by fusing or sintering the components, or in aqueous solution.  The basic nitrate may be produced during the reaction; thus calcium hydroxide, calcium nitrate and potassium nitrate may be caused to react in aqueous solution.  The melts or concentrated solutions may be sprayed to give solid fertilizing salts.ALSO:Basic nitrates of divalent metals such as calcium, barium, strontium, magnesium or zinc are combined with nitrates of monovalent radicles, urea being specified.  An example relates to the production of the compound Ca(OH)NO3.CO(NH2)2.HNO3.  The reaction may be effected by fusing or sintering the components, or in aqueous solution.  The basic nitrate may be produced during the reaction, for instance, by adding the normal nitrate of the divalent metal along with hydroxide, or oxide.  The melts or concentrated solutions may be sprayed to give solid fertilizing salts.
Patent GB-1403234-A (GB)
Title: Tracked sliding doors
IPC: B60J5/00
Filed: 1972-04-07
Abstract: 1403234 Slat door ANDREW MITCHELL & CO Ltd 29 March 1973 [7 April 1972] 16086/72 Heading EIJ A T-shaped member 4 has an offset flange 4b at the end of its stem for passage through a slot 3 in the end of a slat 1 of a door. The member is secured by a stud through aligned holes 2, 3. The slats are of S-shaped crosssection for interengagement of their longitudinal edges. The head of the body 4 runs in a guide channel. The members 4 are of plastics.
Patent GB-884365-A (GB)
Title: Improvements relating to electronic amplifiers
Inventor: TAYLOR PHILIP LESTER
IPC: H03F1/34
Filed: 1957-05-21
Abstract: 884,365. Valve and transistor amplifying circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 14, 1958 [May 21, 1957], No. 16108/57. Class 40(6). A direct-coupled amplifier employing valves or transistors comprises two similar channels each comprising a plurality of direct-coupled amplifying stages (e.g. V1, V3, V5 and V2, V4, V6) in which certain corresponding stages are coupled together by resistors connected in common to their cathode or emitter electrodes and is provided with negative feedback from the junction point of two equal resistors R connected between the two output terminals to the common cathode or emitter resistor of the first pair of stages through a a cathode follower or emitter follower (e.g. V7) of which the load resistor is the common resistor of the first pair of stages. Thus in the valve circuit shown the common cathode resistors reduce the unbalanced components of the input signals e<SP>1</SP>, e<SP>11</SP> and these are further reduced by feeding back the sum of the output signals E<SP>1</SP>, E<SP>11</SP> from the junction point of the resistors R. The balanced components however are not so attenuated so that equal and opposite output signals E<SP>1</SP>, E<SP>11</SP> are obtained corresponding to the balanced components in the input signals e<SP>1</SP>, e<SP>11</SP>. A circuit in which the valves are replaced by equivalently connected transistors is illustrated in Fig. 5 (not shown).
Patent GB-405515-A (GB)
Title: Improved method of and apparatus for mixing granular material, particularly moulding sand
IPC: B22C5/04
Filed: 1933-06-06
Abstract: 405,515. Treating mould and core materials. POTTS, H. E., 12, Church Street, Liverpool.-(Badische Maschinenfabrik & Eisengiesserei vorm. G. Sebold und Sebold & Neff ; 3, Seboldstrasse, Durlach, Baden, Germany.) June 6, 1933, No. 16130. [Class 83 (i).] Apparatus for mixing foundry sand or other granular materials comprises means for treating the material as it moves at, at least, two stations by rollers or roller-like members which effect a rubbing or scouring, a compressing, and a lifting and redepositing action respectively. In the form shown in Fig. 2 the material is fed down a central shoot 7 to a rotating plate 1 and is treated by a smooth roller 11 covered with rubber, and driven at a greater peripheral speed than the plate, to a rubbing action, and by a rotating, cage-like member 40, driven by contact with the plate, to a lifting and redepositing action. As shown in Fig. 5 the member 40 comprises parallel, inclined blades 401 mounted on a shaft 37 loosely carried in bearings 38 and driven by means of a rubber tyre 36. A heavy head 41 is provided to secure an effective drive. An intermediable compression roller, which may be divided, may be interposed between the stations occupied by the roller 11 and member 40, and fixed deflecting shares may be placed between the different stations. The roller 11 may be of hyperbolic shape to correspond with the natural angle of the surface of the material, which may also be fed past the treating stations on an endless band.
Patent GB-1137545-A (GB)
Title: Molding materials based on bitumen and ethylene copolymers
Inventor: TRIESCHMANN HANS-GEORG
IPC: C08L9/00
Filed: 1966-04-13
Abstract: 1,137,545. Bitumen, ethylene copolymer, and polyisobutylene compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 13 April, 1966 [14 April, 1965], No. 16134/66. Headings C3N and C3P. [Also in Division B2] A moulding material contains in parts by weight: (A) bitumen, 30-99; (B) ethylene copolymer, 0À5-69À5 ; (C) polyisobutylene, 0À5-30; the total of (A), (B) and (C) being 100 parts by weight. Bitumen (A) has Pen 1-210, and may be a high vacuum bitumen Pen 5-11 or a blown bitumen Pen 5-45. Copolymer (B) is of 30-97% wt. ethylene and 70-3% wt. vinyl and/or acrylic and/or methacrylic ester, and may be prepared by highpressure polymerization at > 1000 atmos, or by aqueous solution or emulsion polymerization at 100-400 atmos. Exemplified esters are: vinyl acetate and propionate, and alkyl acrylates and methacrylates, the alkyl group containing 1-10 atoms, e.g. methyl, propyl, isobutyl, cyclohexyl, 2-ethylhexyl acrylates and methacrylates. Polyisobutylene (C) has M.W. 1000-200,000. The material may also contain fillers or mineral particles, e.g. wood flour, carbon black, diatomaceous earth, kaolin, quartz powder, stone chippings, sand, asbestos, glass fibres, mineral wool, rubber powder, wool felt, jute, or synthetic fibres, forming 5-80% wt. of the whole material. The material may be spread, trowelled, or poured in the molten state on a surface which may have been primed with, e.g. bitumen emulsion. The material may be extruded or moulded; moulded articles may be joined by moistening the surface with solvents or by superficial fusion. Articles may also be coated by dipping, by whirl sintering or by flame-spraying.
Patent GB-1141807-A (GB)
Title: Method of coating reinforcing cords
Inventor: DZIUBA WLADYSLAW ADAN
IPC: C08J5/06
Filed: 1965-04-15
Abstract: 1,141,807. Treating textiles. COURTAULDS Ltd. 14 April, 1966 [15 .April, 1965], No. 16195/65. Heading D1P. The adhesion of reinforcing cords, e.g. polyethylene terephthalate cords, to rubber is improved by dipping them in a first dip consisting of a poly functional epoxy compound having at least two epoxy groups in the molecule with or without a copolymer of maleic anhydride and an ethylenic monomer as crosslinking agent in solution in an organic solvent or dispersion in water containing an emulsifying agent drying them while under tension and dipping them in a second dip comprising an aqueous emulsion of a styrene-butadienevinyl pyridine latex and a resorcinol-formaldehyde resin. The polyfunctional epoxy compound which may be a partially epoxidised unsaturated aliphatic hydrocarbon may be present in an amount of 1-10% by weight and may be in the form of a solution in an organic solvent, e.g. methyl isobutyl ketone or a mixture thereof with acetone or an aromatic hydrocarbon, or a dispersion in water containing a suitable emulsifying agent, e.g. a sorbitan derivative emulsifier. The first dip may also contain as cross-linking agent a copolymer of maleic anhydride and styrene, which may be at least partially neutralised with a base, in an amount of 0.2-10% by weight. The second drip may contain 10-25% by weight of the styrene-butadiene-vinyl pyridine latex and 1-5% by weight of the resorcinol-formaldehyde resin. After the second dip the cords may be dried under tension.
Patent GB-691120-A (GB)
Title: Improvements in gas lighting devices
IPC: F23Q7/10
Filed: 1950-06-29
Abstract: 691,120. Gas lighters. WEBB, J., WEBB, 'T., and WEBB, M. A. June 29, 1951 [June 29, 1950], No. 16234/50. Class 75(iii) The invention relates to lighters of the type in which a. valve D controlling the flow of gas to a torch C at the end of a flexible tube b' is operated by rotating a holder D<2> for the torch and in which, when the torch is inserted horizontally in the holder, its weight causes the holder to rotate to close the valve. The invention consists in that an electric filament igniter E for the torch is positioned on the valve casing A so that when the torch is in the horizontal position in. the holder the filament e is adjacent the torch and a switch connecting the filament with a battery in a housing on the valve casing is closed by the holder simultaneously with the onening of the gas valve. The holder D<2> is formed as an extension of the valve D and comprises a socket into which the torch is inserted and in which it is held by a spring pressed ball. A lateral opening d<2> in the socket for the outflow of gas from the torch faces the filament igniter E when the socket is in the position corresponding to the valve being open. The torch comprises a handle part and a nozzle having an end outlet and also a lateral outlet c<1> which directs gas through the opening d<2> in the socket. The switch comprises a spring influenced stationary contact and a co-acting contact f<1> carried by the valve D. The filament e is mounted in a sheath screwed into a socket on the valve casing. A resilient washer may be inserted between the valve D and the valve casing to hold the valve in open position when the torch is withdrawn from the holder. The Provisional Specification states that the switch is opened by a spring on withdrawing the torch from the holder, that the valve may be a sliding type operated by a cam on the holder and that a shoulder on the casing prevents the torch from being withdrawn until it has been ignited.
Patent GB-437312-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/00
Filed: 1934-05-31
Abstract: 437,312. Smokers' ash-trays; cigarette rests. COTTER, H. J., 18, Royal Crescent, Holland Park Avenue, London. May 31, 1934, No. 16241. [Class 130] An ash-receptacle A has hinged or otherwise attached thereto a frame B having inclined bottom plates E<2>, F<2> and fitted with transverse vertical plates C with serrated upper edges for supporting a lighted cigarette. When the cigarette burns down it falls into the receptacle A through the gap between the lower edges of the plates E<2>, F<2>.
Patent GB-306772-A (GB)
Title: Improvements in current motors and propellors
IPC: F03D3/06
Filed: 1928-06-05
Abstract: 306,772. Compaan, H. C. June 5, 1928. Propelling.-Paddle wheel propellers comprising tilting vanes on radial axes include a circular cam track fixed relatively to the vanes and arms on the vanes which traverse the track and hold them in their feathering positions. The cam track comprises a ring one half of which is in the plane parallel to the plane of rotation and the other half of which is inclined to that plane. Vanes 4 are mounted on arms 3 carried by the power shaft 2 which is supported on a platform 5 adjustably mounted upon a fixed table 6. The platform lines itself up under the influence of the prevailing stream and for this purpose a dihedral tail is provided. Mounted on the platform 5 is a cam track consisting of a ring of T-section of which the half 11 is fixed and the half 12 is mounted so as to be adjustable in inclination; for performing the adjustment a screw jack 17 is fitted. Where the two parts 11, 12 meet the flange 14 is cut away. Parallel with the arm 3 is an arm 26 which has a bracket carrying upper and lower rollers that run on the cam track. From this bracket there is a connecting rod 29 to an arm 30 on each of the vane shafts. The cam track will thus cause the vanes to feather during one half of each resolution and the extent of that feathering is adjusted by the screw jack.
Patent GB-322796-A (GB)
Title: Improved means and methods for recording and reproducing sound
IPC: G11B7/00
Filed: 1928-06-06
Abstract: 322,796. Neale, J. June 6, 1928. Transmitters in which a sound-controlled light beam acts on a photo-electric element. - The fourth Provisional Specification describes an apparatus which is stated to be of advantage in the reproduction of sound, and is similar to the sound-recording apparatus shown in Fig. 3 of the complete Specification. A beam of light is controlled by passing it through a fixed grid, and, after reflection from a vibratory mirror, passing it through another grid. The slots in the two grids are so arranged with respect to a central line that light is prevented from passing through at one side of this line when the maximum amount can pass through at the other side. The beam, controlled in this manner, falls upon selenium cells arranged in a Wheatstone bridge circuit as described in Specification 307,086. One of the grids may be formed upon the mirror as a series of parallel strips.
Patent GB-145421-A (GB)
Title: Improved vacuum electric discharge apparatus having an. incandescent cathode
IPC: H01J21/02
Filed: 1920-06-17
Abstract: 145 421. Siemens & Halske Akt.-Ges. May 31, 1916, [Convention date]. Thermionic relays. - A thermionic valve relay or amplifier has an incarides. cent cathode k, Fig. 3, a control grid h, an anode a and an open-work electrode S<n> interposed between the grid and the anode and con. nected with a point on the anode battery so as to be maintained at a constant positive potential lower than that of the anode. The potential of the openwork conductor may be lower than that which corresponds with its position in the tube. In order to reduce the space charge, an additional openwork conductor Sp may be arranged between the cathode and the central grid, and maintained at a positive potential higher than that which corresponds with its position. According to the Specification as open to inspection under Sect. 91 (3) (a) a plate anode a, Figs. 1 and 2 (Cancelled) is mounted inside a frame consisting of glass tubes r, around which tungsten wire Sn is wound in a vertical direction to form the openwork electrode, and wire h is wound horizontally to form the central grid. Two V-shaped filaments k<1>, k<2> are mounted outside the grid. This subject-matter does not appear in the Specification as accepted.
Patent GB-1142023-A (GB)
Title: Sliding-clasp fastener folding cases
IPC: B29C37/00
Filed: 1966-04-14
Abstract: 1,142,023. Seaming non-metallic sheet material. G. MœLLER, [trading as GERHARD MœLLER]. 14 April, 1966 [17 April, 1965], No. 16448/66. Heading B5K. [Also in Divisions A4 and E2] A sliding clasp fastener folding case of highfrequency welded plastics foils and stiffening means held together by two parallel edge welds, in which the edges have the same rigidity as the remaining case. The fastener 9, Fig. 7, is held in a frame 2 with its band 12 outward between an inner foil 11 and an edge covering foil 10 and between an electrode 1 and a slightly recessed base plate 3 holding a reinforcement sheet 13 e.g. cardboard with its upper face having a plastics layer 14. The foils, sheet 13 and fastener band are butt welded by the electrode part 4 to leave the extreme edges of the foils loose. The ends of the band are secured under a covering foil 15 at the fold axis of the case butt welded by a part 5. The combination is lifted by the frame 2 held within the raised electrode 1 and a deeply recessed base 7, Fig.10, with cutting edges 8 replaces base 3, and a layer of outer foil 17 and foamed material 16 is laid over the base 7. The electrode 1 is lowered to make a separation weld whereby the extreme edges of the foils are removed and the outer foil 7 becomes wrapped round and joined to the covering foil 10.
Patent GB-981744-A (GB)
Title: Improvements in electron discharge device output waveguides
IPC: H01J23/02
Filed: 1962-09-27
Abstract: 981,744. Klystrons. VARIAN ASSOCIATES. Sept. 27, 1962 [Oct. 30, 1961], No. 16523/64. Divided out of 981,742. Heading H1D. An electron discharge device, e.g. a klystron, has a rectangular output waveguide 45 coupled at one end to the device and having a wavepermeable, gas-tight window sealed in the waveguide, wherein two vanes 51, 52 are disposed in the waveguide between the device and the window, each vane presenting a reactive impedance and the vanes being so disposed that they form a baffle obscuring all straight line paths from the device to the window and thereby shield the window from particle bombardment. As shown, the vanes extend from opposite walls of the waveguide and are approximately a quarter of a wavelength apart so as to provide a substantially reflectionless obstacle at the passband of the device.
Patent GB-985968-A (GB)
Title: Improvements in or relating to telecommunication systems
Inventor: SEAMAN ERIC CHARLES HARRY
IPC: H04B3/30
Filed: 1960-05-10
Abstract: 985,968. Preventing inductive disturbance. POSTMASTER-GENERAL. May 5, 1961 [May 10, 1960], No. 16525/60. Heading H4R. A telecommunication system having at least two wires exposed to an interfering field includes an amplifier whose output voltage is applied to the wires so as to oppose the induced interfering voltage and whose input voltage is derived from one of the wires, this input voltage being the difference between the said induced and the said output voltages. A voltage E is induced in the line wires 2-4 and test wire 1 by an interfering field in the region 6. The test wire is connected to the input 13 of an amplifier 14 whose output is connected to the primary winding of a transformer 8. A number of secondary windings 9-12 are connected in series with the respective wires 1-4 and they may be effected by simply wrapping the cable (carrying wires 1-4) around the core of the transformer a number of times or by passing the cable through the core. It is shown mathematically that by making the gain of the amplifier sufficiently high consistent with stability the opposing voltage e induced in the wires is equal (or nearly equal) to the interfering voltage E and consequently the interfering voltage is virtually cancelled. This is achieved without any need for precise adjustment of the components and is not subject to a decrease of neutralization with time.
Patent GB-728420-A (GB)
Title: Improvements in and relating to overload protection systems for dynamo-electric machines
IPC: H02K11/00
Filed: 1953-06-16
Abstract: 728,420. Protective cut-out arrangements; thermal switches. GENERAL ELECTRIC CO. June 16, 1953 [June 18, 1952], No. 16564/53, Class 38 (5). A dynamo-electric machine, e.g. a motor, is protected during starting and against stalled rotor conditions by a first thermally responsive snapacting disc 120 which is heated by the motor current, but, when the motor is running, is cooled and rendered ineffective by the circulating ventilating medium in the motor. A second thermally responsive snap acting disc 121 primarily responsive to the heat of the motor core protects against running overloads. The disc 120, Fig. 2, is mounted on the outside of a casing 119 containing the disc 121 and carries a contact 123 co-operating with a fixed contact 125 and a contact 122 cooperating with a contact 135 carried by the disc 121, the connections being such that the motor current flows through the disc 120 but not through the disc 121. The disc 121 is arranged in good heat conducting relationship with a copper bar 34 which extends into the motor core. The motor circuit is opened when either disc is heated sufficiently for it to reverse its curvature and may be reclosed by a manually operated push rod 138 acting through toggles 137, 139 on the discs. In Fig. 1 (not shown) both discs co-operate with fixed contacts and are self-resetting. The first disc and bar 34 may be connected in the motor circuit, the first disc then being to some extent responsive to the motor current in addition to the heat of the core.