baber/WOPTO huggingface dataset:
Patent GB-358569-A (GB)
Title: Improvements in and relating to alternating current rectifying systems
IPC: H02H7/127
Filed: 1930-07-10
Abstract: 358,569. Rectifying alternating current. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Williamson, R. H. ; 12, Riverside Avenue, Scotia, New York, U.S.A.) July 10, 1930, No. 20914. Convention date, Aug. 21, 1929. [Class 38 (ii).] Vapour apparatus, arrangements of.-In a rectifying system employing hot cathode mercury vapour or other electronic valves provided with control electrodes adapted to be negatively biased to stop the operation of the system in the event of overload, the magnitude of the biasing potential is determined by the rectified current and means are provided whereby that potential is impressed upon the control electrodes only when it exceeds a predetermined magnitude. In the arrangement shown, a D.C. load circuit 11 is supplied from a transformer 12 through a set of rectifiers 13 .. 18, three of which are provided with grids. The latter are connected through a glow discharge tube 23 or similar device to a point on a resistance 21 connected in series with the load so that when the load current exceeds a predetermined value and the voltage drop across the resistance reaches the operating voltage of the device 23, a negative potential is applied to the grids to stop the operation of the rectifiers. A grid condenser 24 shunted by a resistance 25 is provided to enable the grid charges to leak away and the rectifiers to restart when overload conditions are removed. A smoothing reactance 19 is inserted in series with the load circuit, and means are provided for bypassing the current therethrough under overload conditions thus avoiding the production of a voltage across the terminals of the reactance sufficiently high to cause the rectifiers to continue to operate notwithstanding the negative bias on the grids. The bypassing means may comprise a voltage operated device similar to the tube 23 or, as shown, it may comprise a three-electrode valve 26, the grid of which is normally negatively biased by a supply 27 connected in opposition to the voltage developed across a resistance 20 in series with the load, the arrangement being such that when the load current reaches a predetermined value, the biasing voltage 27 is neutralized by the voltage across the resistance 20, thus causing the valve 26 to become conducting and to relieve the reactance 19 of excess current.
Patent GB-318236-A (GB)
Title: Improvements in or relating to apparatus for the fluid treatment of wound textile fibres
IPC: F17C1/14
Filed: 1929-07-09
Abstract: 318,236. Obermaier, O. J., and Obermaier et Cie. Aug. 31. 1928, [Convention date]. Treating substances with liquids.-To obviate handling between liquid treatment and hydroextraction, fibres x wound on perforated tubes 17 are held in the perforated walls of a container 4 which has a bearing 6 for supporting it firstly in a closed dye &c. chamber 24 having reversible connections to a pump 28, and subsequently in the chamber of the hydro-extractor. The container 4 has a cover 8, which carries an internal filing-piece 7, for reducing the quantity of fluid necessary, and a screwed rod 11 for securing the container 4 in the hydro-extractor. Nipples' 16 in the perforations in the walls of the container 4 carry perforated tubes 15 and also flanges 18 against which the fibre on the tubes 17 is hell by flanges 20 held by spring pieces 22 to the inner tubes. The Specification as open to inspection under Sect. 91 (3) (a) states that the apparatus may be used for treating other fibres, e.g. cotton raw stock, by removing the tubes 15. This subjectmatter does not appear in the Specification as accepted.
Patent GB-409942-A (GB)
Title: Improvements in tubular heat exchange apparatus for fluids and tube bends or connectors therefor
IPC: F01L13/00
Filed: 1933-07-26
Abstract: 409,942. Pipe joints. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. July 26, 1933, No. 21036. Convention date, July 26, 1932. [Class 99 (i).] The tubes in the superposed rows of tubes of a heat exchanger are connected by streamline junction pieces 13, 14, Fig. 3. A whole row of tubes may be secured in a casting including U -bends connected by streamline members 15, Fig. 6. In another arrangement, the members are formed by pressing material from adjacent tubes and welding the joint between the pressed material.
Patent GB-1135727-A (GB)
Title: Vented drainage tube with flushing protective valve
IPC: A61D1/12
Filed: 1967-05-05
Abstract: 1,135,727. Drainage device. KENDALL CO. 5 May, 1967 [9 May, 1966], No. 21063/67. Heading A5R. A drainage tube 10 is provided with a vacuum-breaking device 22 comprising a bacteria filter 24 and air inlet channel 23 having at least one slit-like opening 25 which permits air to enter the drainage tube via the filter but prevents liquids being drained from passing through to the filter. The air inlet channel may be provided with fins to prevent it from contacting the walls of the housing 18. The bacteria filter may comprise a plug of fibrous material e.g. cotton. The drainage tube may be provided with an inflatable retention portion 28.
Patent GB-186221-A (GB)
Title: Improvements in and relating to thermally controlled electric circuit interrupters
IPC: H01H87/00
Filed: 1921-08-09
Abstract: 186,221. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Aug. 9, 1921. Cut-out arrangements; mercury cut-outs.-An electrothermally operated mercury interrupter comprises a vertical container 5 of glass or other insulating material containing a column of mercury 8, in which are disposed electrodes 6, 7. The tube 5 is surrounded by a heating-coil 9 so arranged that with excessive current the mercury volatilizes at an intermediate point, thereby breaking the circuit. The upper end 11 of the tube 5 is flared outwardly, the mercury being open to the atmosphere. A constriction is formed at a point 13 in the tube 5 restricting the crosssectional area of the column for a portion of its length. The constriction 13 limits the convection currents in the mercury, preventing free boiling and ensuring a sudden ejection of the mercury into the upper portion of the tube. As the mercury flows down after operation of the cut-out, the constriction at 13 traps any air bubbles large enough to interrupt the electrical continuity of the column. In a modified form, Fig. 2, the constriction 18 is formed between the flattened portion of the upper cylindrical electrode 6<a> and the side of the unconstrioted tube 5<a>. In a further modification, Fig. 3, the constriction lies in a central hole. 19 in the electrode 6b. In the form shown in Fig. 4, the column has two heating-coils 22, 23, the two portions of the tube adjacent to these coils being separated by a constriction 21 in addition to the upper constriction 20, the former localizing the heating effect of each coil. The lower constriction 21 may be shunted by a wire 25, Fig. 5, or by a metal annulus 26, Fig. 6. As applied to the protection of a motor 14, Fig. 1, the heating-coil 9 is in series with the main circuit controlled by a switch 15, the mercury column being in series with the closing-coil thereof. As excessive current flows in the coil 9, the switch closing coil circuit is broken in the mercury column, thereby allowing the switch to open. The switch may be reclosed by momentarily closing the push-button 16. As applied to the protection of a three-phase motor 27, Fig. 4, the two heating-coils are connected in different phases and the column, is in series with the closing-coil circuit of the main switch 28. A pushbutton 29 is provided for resetting.
Patent GB-450792-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B21/43
Filed: 1935-01-23
Abstract: 450,792. Kinematograph apparatus. KODAK, Ltd., Kingsway, London.-(Assignees of Mihalyi, J. ; 333, State Street, Rochester, New York, U.S.A.) Jan. 23, 1935, No. 21124. Convention date, Aug. 31, 1934. Divided out of 450,766. Drawings to Specification. [Class 97 (i)] In a motion-picture camera the film is wound from one spool on to a second spool and is then rewound on to the first spool by take-up mechanism which is positively locked by mechanism controlled by a device within the magazine, the device being actuated in accordance with the length of film carried by the first spool. The feed mechanism is similar to that described in Specification 426,239 and the magazine is similar to that described in Specification 426,240. The apparatus which is described in the Specification and is provided with a film-footage indicator and a magazine, adapted to be reversed and inserted to expose successively two rows of images on the film, is the same as that described in Specification 450,766.
Patent GB-875199-A (GB)
Title: Improvements in pistons for internal combustion engines
Inventor: CROSS ROLAND CLAUDE
IPC: F02F3/08
Filed: 1959-06-19
Abstract: 875,199. Pistons. CROSS MANUFACTURING CO. (1938) Ltd. June 8, 1960 [June 19, 1959], No. 21125/59. Class 122 (1). Piston slap is avoided by a pair of arcuate metal plates 2 having a coefficient of expansion lower than that of the piston 1 saddled over the exterior of the skirt 3 on diametrically opposite sides thereof and each supported by parallel wings 4 passing through longitudinal slots 7 in the skirt normal to the gudgeon pin axis and abutting the gudgeon-pin or its bosses 5. The saddle parts 2 may lie in recesses 6 in the skirt. The piston is of aluminium alloy and the plates of springy steel. In a modification, Figs. 3 and 4 (not shown), the wings 4 abut the gudgeonpin between the boss 5 and the connecting-rod small end. Specifications 843,248, 843,254, and 843,258 are referred to.
Patent GB-1277849-A (GB)
Title: Improvements in or relating to nickel-containing mixed metal catalysts
IPC: H01M4/98
Filed: 1970-05-01
Abstract: 1277849 Making metal alloy catalysts by leaching; electrodes electrolytic oxidation SIEMENS AG 1 May 1970 [10 May 1969] 21140/70 Headings C7A C7B and C7D A mixed metal catalyst (for use in electrodes in fuel cells or electrolyzers) is made by leaching out the Al from an alloy composed of Al, Ni, Mo and one of Hf, Ti, Zr, Nb and Ta and consisting at least partially (e. g. at least 70% by weight) of a homogeneous quaternary phase. Suitable starting alloys are: - The alloys may be homogenized (e. g. at 500- 1100‹C.) prior to leaching and may be oxidized thereafter (e. g. electro-chemically by polarization to 100-1000 mV or by air, oxygen or H 2  O 2  solution).
Patent GB-735053-A (GB)
Title: Improvements in and relating to electrical circuits incorporating cold cathode gas discharge tubes
Inventor: CRUMP ALFRED HENRY
IPC: G05B11/01
Filed: 1952-08-22
Abstract: 735,053. Protective cut-out arrangements. ENGLISH ELECTRIC CO., Ltd. Aug. 14, 1953 [Aug. 22, 1952], No. 21141/52. Class 38 (5). [Also in Group XL (c)] An electronic circuit, particularly for an overload protective arrangement, comprises a gridoperated gas discharge tube of the cold-cathode type to which a signal is applied to cause operation of the tube, the circuit then responding to effect de-ionization and re-operation of the tube. The signal is supplied from a current transformer 4, over a rectifier 3 to a resistance 7, the potential across which is applied to the grid 12 of the tube, which discharges when the potential reaches a certain value. This causes a coil 17 to open a contact 18 and disconnect a resistance 19 and to change over a contact 11 to connect a condenser 9, of a resistance capacitance circuit 8, 9 to the grid. A relay 6 is thereby energized to close its contact 10 and energize a coil 20, and maintain energization of relay 17. The movement of contact 16 by coil 20 is delayed so that de-ionization of the tube is complete before it makes its left-hand contact. If the P.D. across condenser 9 remains high, the tube discharges again, to energize a trip coil 21 and remove the H.T. supply 15 by means not shown. Specification 732,454 is referred to.
Patent GB-789137-A (GB)
Title: Apparatus for promoting draught in chimneys and flues
IPC: F23L17/00
Filed: 1955-07-22
Abstract: 789,137. Chimneys. STUTTARD, D. E. July 20, 1956 [July 22, 1955], No. 21219/55. Class 25 Apparatus for promoting draught in a flue &c. consists of a casing 1 fitting over an opening in the flue and housing an electromotor 6 driving an impeller 12, the axis of the motor and impeller shaft 7 being at an angle to the axis of the flue 3, so that the flue gases flow past the impeller to the flue outlet. The motor is enclosed in a detachable cover 15 and cooled by air induced by a fan 11 through openings 14 in the casing and discharged through openings 16. A heat-dissipating disc 13 is mounted on the shaft 7.
Patent GB-851966-A (GB)
Title: Improvements in or relating to folding covers for vehicles
IPC: B60J11/00
Filed: 1959-06-22
Abstract: 851,966. Vehicle covers. CHERLIN, H. June 22, 1959, No. 21365/59. Class 103(2). A vehicle folding cover comprises a bag 1, of waterproofed woven or knitted material or a thermoplastic, having a flap 2 adapted to be laid on a surface so that a vehicle to be covered can be driven thereonto, whereafter the remainder of the bag can be pulled over the vehicle, the edges of the flap and the remainder of the bag being secured together by a sliding fastener 3. The interior dimensions of the bag exceed the overall dimensions of the vehicle and the bag is supported substantially free from the vehicle body by supports within the ends 8, 9 of the cover. Each support comprises a pair of bars pivoted together at their centres or a single flexible rod which is bent to follow the periphery of the associated end. The cover is made from a single piece of material formed in the shape of cross. The adjoining edges of the bag proper are sewn and reinforced by strips 10. The flap may be reinforced by a backing of hinged wooden portions whereby the backing is foldable. The sliding fastener may be replaced by press studs or hooks arranged to co-operate with eyes, loops or hooks. The flap may be detachable e.g. by means of a further sliding fastener. Ventilation holes e.g. 6, 7 may be formed in the bag.
Patent GB-803719-A (GB)
Title: Improvements in cleat devices for ships' hatch covers
Inventor: MACGREGOR ROBERT
IPC: B63B19/24
Filed: 1956-07-11
Abstract: 803,719. Hatch covers. MACGREGOR & CO. (NAVAL ARCHITECTS) Ltd. May 1, 1957 [July 11, 1956], No. 21434/56. Class 113. [Also in Groups XXII and XXV] A hatch cover and cleat device comprises e.g. a screw 9 the head of which is recessed in a block 8 welded to the top plating 1 of the cover section Band the lower end freely journalled at 12 in the horizontal flange 7 of an L-shaped bracket. The screw 9, between the block 8 and the journalled end 12, receives a tongue 16 ; rotation of the screw carries the tongue 16 into engagement with a stop 17 on the adjacent cover section A, and forces the vertical flange of the upturned angle 2 into the resilient strip 4 housed beneath the edge of the top plate 1 of the cover section A. The device may also be used to secure a hatch cover to a hatchway.
Patent GB-1272613-A (GB)
Title: Casting apparatus
IPC: B22D27/08
Filed: 1969-04-28
Abstract: 1,272,613. Moulding plastic substances. SULZER BROS. Ltd. 28 April, 1969 [3 May, 1968; 28 Feb., 1969], No. 21456/69. Heading B5A. [Also in Division B3] Casting apparatus which may be used for casting wax or plastics comprises a casting mould 202 an opening in the mould communicating with a mould cavity 222 within the mould, means for evacuating the mould cavity so as to draw melt through the opening into the mould cavity, a sprue 206 extending from the opening and arranged to prevent hydrostatically the discharge of casting material from the mould cavity after the casting operation. As shown the casting material is retained in the mould by virtue of the atmospheric pressure acting on the level 234 of the casting material in a part 233a of a U-shaped member 233. In a modification the member 233 may be replaced by an automatic ball valve. The mould 202 is located in a housing 201 which is connected to a suction line 211. To enable the vacuum in the suction line to communicate with the mould cavity a plate 220 of the mould is constructed of porous material permeable to gas. In addition the plate has apertures 223.
Patent GB-1526913-A (GB)
Title: Apparatus for water purification
IPC: C02F1/465
Filed: 1977-05-20
Abstract: 1526913 Electrolytic water purification SACHS-SYSTEMTECHNIK GmbH 20 May 1977 [14 June 1976] 21493/77 Heading C7B Apparatus for anodic oxidation of water bias in a single housing or flow chamber containing electrodes connected to batteries in the housing via an electronic control circuit which maintains a constant current during use, and an indicator which emits a perceptible signal (e.g. a lamp) in response to the voltage across the electrodes whenever this deviates outside a predetermined range (due to unsuitable water conductivity or flat batteries). Various safety devices are described which prevent malfunction or inadvertant operation.
Patent GB-614667-A (GB)
Title: Improvements in or relating to lubricating pumps
IPC: F16N13/20
Filed: 1946-07-19
Abstract: 614,667. Gear pumps. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. July 19, 1946, No. 21612. Convention date, July 23, 1945. [Class 110 (ii)] [Also in Group XXVIII] A gear pump 15, Fig. 1, delivers lubricant from a reservoir 1 to a multiple piston reciprocating pump actuated by cams 4 secured to a shaft 3 (see Group XXVIII) irrespective of the direction of rotation of the pump drive 18, Fig. 2. Unidirectional driving of the shaft 3 is effected by a gear train between it and the shaft 18 comprising a single-toothed ratchetwheel 22 integral with a gear-wheel 23 secured to the shaft 18, and in one direction of rotation of the shaft 18, the ratchet 22 rotates a pawl carrying disc 20A which is secured to a shaft 19A in turn fixed to the gear pump wheel 17. The shaft 3 is thus driven from the wheel 17. Simultaneously, the wheel 23 drives a gearwheel 25 through an idling wheel 24 in such direction that it and a free-wheel 26 are not coupled. On reversal of the shaft 18, the wheel 25 drives the wheel 26 and hence the shaft 3 and gear pump wheel 16 in the same direction as before. Alternatively, correct delivery to the piston pumps may be effected by means of an automatically operated slide valve 33, Fig. 5, mounted in a casing 32 and having opposite sides connected at 27, 27<1> with the ducts 19, 20 and being forced by oil pressure to a position where it connects the pressure side of the gear pump through ports 27, 35, 29 to the piston pump inlets; ports 28, 281 lead from the reservoir 1 being connected at 28, 28<1>. A small orifice 37 allows the valve to return to the mid position when the pump stops. In a modification, the valve comprises a casing having conduit connections at 28, 29, Fig. 4, communicating with the piston pump inlet and the reservoir 1, and connections at 27, 271 with the ducts 19, 20. Suction valves 31 or 31<1> and delivery valves 30 or 30<1> act according to whether the duct 19 to which the casing is connected at 27<1> is acting as suction or delivery.
Patent GB-728843-A (GB)
Title: Improvements in or relating to transfer devices for use in typewriters or like machines
Inventor: MURRAY SAMUEL MAHOOD
IPC: B41J17/00
Filed: 1952-08-28
Abstract: 728,843. Carbon sheet holders. FANFOLD, Ltd. Oct. 2,1953 [Aug. 28, 1952], No. 21686/52. Class 16. A transfer device for use in typewriters or like machines, comprises a flexible backing sheet 1, one or more transfer sheets 2 detachably secured thereto, and a flexible holding strip 3 for each transfer sheet, to which the sheet 2 is attached at one end, the backing sheet 1 being formed with slots 4 near each side edge to afford mountings in which the holding strips 3 are received, the marginal portions 5 of the backing sheet 1 being folded over to form flaps acting as stops for restricting lateral movement for the strips 3, the flaps being secured against unfolding as by stitching 6. The sheets 2 may be permanently secured to the strips 3 by wrapping the rear end round the strip. Specification 520,094 is referred to.
Patent GB-315665-A (GB)
Title: Manufacture of azo-dyestuffs containing copper
IPC: C09B45/28
Filed: 1929-07-15
Abstract: 315,665. Soc. of Chemical industry in Basle. July 14. 1928, [Convention date]. Addition to 315,664. Azo dyes, soluble metal compounds of.-Azo dyestuffs containing copper are produced by treating with agents yielding copper disazo dyestuffs of the general formula in which X represents a residue such as CO or CS or a triazine, quinazoline, pyridazine, pyrimidine, or like heterocyclic residue, R1 is the residue of a diazotized aromatic o-aminocarboxylic acid or an alkyl ester thereof, R2 is an aromatic nucleus, and H3 is the residue of an aromatic o-oxycarboxylic acid. 'The dyestuff may be treated with the agent yielding copper during its formation by coupling, in substance, in the dyebath, or on the fibre. The parent dyestuffs are obtainable (a) by coupling a diazotized aromatic o-aminocarboxvlic acid or an alkvl ester thereof (1 mol.) in alkaline medium with a monoazo compound of the type (1 mol.), or (b) by uniting by means of phosgene, carbon disulphide, or other suitable compound corresponding to the residue X as defined above, 1 mol. of a monoazo dyestuff, an o-aminocarboxylic acid or an alkyl ester thereof - (alkaline) 2 : 5 : 7-acid, with 1 mol. of a monoazo dyestuff of the general formula H2N - R2 - N = N-R3. In the latter case the metallization may be effected simultaneously with the coupling or before or after the uniting of the monoazo dyestuffs. The following example is specified. Diazotized 2-carboxyaniline-4-sulphonic acid (1 mol.) is coupled (alkaline) with the unsymmetrical urea from 2 : 5 : 7-acid and 4'-aminoazobenzene- 4-oxy-3-carboxylic acid, and the resulting dyestuff is heated for 2-3 hrs. at 80-85‹ C. with an aqueous solution of copper sulphate acidified with sulphuric acid; the product gives on cotton yellow-brown dyeings very fast to light. Specifications 209,723, 298,494, and 299,331 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the similar production of complex metal compounds in general of the parent dyestuffs, other specified metals being chromium, manganese, iron, cobalt, nickel, and molybdenum. This subject-matter does not appear in the Specification as accepted.
Patent GB-1061222-A (GB)
Title: Improvements in or relating to portable incinerators
IPC: F23G5/40
Filed: 1964-05-26
Abstract: 1,061,222. Refuse-burning stoves. SILENT GLOW OIL BURNER CORPORATION. May 26, 1964 [Sept. 26, 1963], No. 21761/64. Heading F4W. A prefabricated incinerator for waste material comprises a sheet metal walled casing open at the top and bottom, a closed-bottom charge receiver 10 disposed within the lower portion and spaced from the casing by flanges 13 forming air passages 14, the receiver forming, with the upper portion 16, a primary combustion chamber, and a head section 20 closing the top of the casing and comprising upper and lower head plates 21, 24 and a perforate-walled topclosed cylindrical drum 30 surrounded by a stack ring 40, forming a second combustion chamber. The plate 21 has a central aperture 22, and series of circumferentially spaced, small apertures 29, 29x, for the admission of combustion air. The plate 24 has a smaller central aperture 27 and a series of circumferentially spaced apertures 28 for the jet-flow of combustible gases from primary to second combustion chamber. In operation the top section 20 is removed, waste material fed to the interior of the casing and ignited, the top section being then replaced, and the waste burns under hydroxylative combustion as disclosed in Specification 914,882. In a further embodiment, Figs. 7-9 (not shown), the upper head plate is provided with adjustable damper means to control the admission of combustion air. The stack ring may be provided with circumferentially extending corrugate ribs.