baber/WOPTO huggingface dataset:
Patent GB-511717-A (GB)
Title: Improvements in means for cooling oil-filled containers for electrical apparatus
IPC: H01F27/12
Filed: 1938-04-14
Abstract: 511,717. Electrical transformer &c. tanks with radiator elements. ASEA ELECTRIC, Ltd., and SCHAANINING, A. April 14, 1938, No. 11509. [Class 64 (iii)] An oil-filled electrical transformer &c. tank is provided with an air-cooled radiator comprising two series of vertical headers 9, 10 mounted on headers 7, 8 connected to the tank and communicating with one another through finnedtubes 11. The headers 9 are connected to a common expansion tank 12, and the radiator is supported on a shelf 5. The oil may be circulated by a pump, and a fan may be provided 'for circulating air over the radiator. A screen may be provided between the tank and the gilled tubes. Specification 451,706 is referred to.
Patent GB-197516-A (GB)
Title: An improved receptacle for tea and like
IPC: A45F3/18
Filed: 1922-04-24
Abstract: 197,516. Hughes, G., and Amos, G. April 24, 1922. Workmen's cans. - A tea or like can has a removable cover or bottom to enable the interior to be cleansed, and is provided with venting- means to facilitate drinking therefrom. Fig. 1 shows a can of oval or other convenient section with a removable top adapted to fit over the body and held in place by wing-nuts connecting its flange with the flange 2 of the body, a washer 5 being interposed to give a tight joint. The top may, however, fit entirely within the lip 3 of the wall of the body. The venting-means comprises a tube 12 open to the air at the upper end and having a spring-controlled ball inlet-valve at the lower end. In the form shown in Fig. 4 the bottom 11 is removable and a curved venting tube 12, equipped with a valve as above, is provided. The cans have removable covering cups 10 secured in place over the stoppers 9.
Patent GB-201606-A (GB)
Title: Improvements in or connected with two-stroke double acting internal combustion engines
IPC: F02B75/02
Filed: 1922-04-25
Abstract: 201,606. Spence, W. L. April 26, 1922. Elastic valves.-A double acting charging pump for an internal-combustion engine may be used to inflate tyres; for this purpose the normal delivery passage D is closed by a valve F to reduce the clearance and the carburettor connected to the pump inlet C<1> is bye-passed by an air inlet G. The valve F consists of a watchspring which is unwound by a knob to seat on the end of the passage D.
Patent GB-706081-A (GB)
Title: Improvements relating to hose fittings or couplings
IPC: B05B15/65
Filed: 1952-05-07
Abstract: 706,081. Hose fittings. WALTER, R. S. May 7, 1952, No. 11590/52. Classes 99 (1) and 99 (2) A hose fitting stated to be for the purpose of counteracting recoil from a jet issuing from a hose nozzle comprises a junctionpiece having an internal screw-thread 11 for connection to a hose, an external screw-thread 12 for connection to a nozzle, and a central baffle 13 secured by a cross-bar 15 in the body 10. The interior of the body has a restriction 17 from which the bore gradually enlarges by a curved surface 16 to a shoulder 19 adjacent the outlet 12.
Patent GB-1422245-A (GB)
Title: Means for providing a rotary axially fixed connection between two concentric components
IPC: F16L23/028
Filed: 1973-03-09
Abstract: 1422245 Pipe couplings G SPINNER 9 March 1973 [9 March 1972] 11642/73 Heading F2G On moving flange 121 to the right, split ring 141a is carried axially along, in groove 161, to ride up conical surface 104 and become trapped behind step 105. A rubber sealing ring is seated in groove 107. The ring 141a may be in two or more segments.
Patent GB-1016775-A (GB)
Title: Improvements in or relating to travelling wave tubes and wave transmission lines suitable for use therein
Inventor: HARRIS NEVILLE WREFORD
IPC: H01J23/24
Filed: 1963-03-25
Abstract: 1,016,775. Travelling wave tubes. ENGLISH ELECTRIC VALVE CO. Ltd. March 3, 1964 [March 25, 1963], No. 11667/63. Heading H1D. A travelling wave tube has a clover-leaf slow wave structure having a succession of slotcoupled resonant waveguide sections each separated by a common partition wall having a plurality of coupling slots therein, the slots in the individual partition walls being so arranged and partitioned that any slot in any one partition walls is, when viewed in the longitudinal direction, opposite the unslotted material between two adjacent slots in the next partition wall. The delay line is built up of a stack comprising a plurality of relatively thick plates having equally circumferentially spaced inwardly projecting fingers, and a plurality of relatively thin partition members having equally circumferentially spaced radial slots, the thick plates and the partition members alternating in the stack. Successive thick members are staggered circumferential through 45 degrees and similarly successive partition members are also staggered.
Patent GB-390002-A (GB)
Title: Improvements in and relating to an electrical signalling device
IPC: G10K1/063
Filed: 1932-04-22
Abstract: 390,002. Hand signal lamps. LAMPEN-UND METALLWARENFABRIKEN R. DITMAR GEB. BRœNNER AKT.- GES., Erste Haidequerstrasse, Vienna. April 22, 1932, No. 11678. Convention date, April 22, 1931. [Class 118 (ii).] An electric lamp and bell are combined together in one portable unit for use more especially on a bicycle. The casing 2 containing the dry battery 1 carries in known manner the lamp with protecting glass 3 arranged as a condensing lens below which is the bell 4. Both lamp and bell are connected to terminal strips 5, 6, a push switch 9 being provided for the bell and a switch 7 for the lamp. In a modification the bell is arranged behind the lamp and used as a reflector therefor, the bell being within the casing.
Patent GB-309839-A (GB)
Title: Improvements in and relating to switch operating mechanism
IPC: H01H3/42
Filed: 1929-04-15
Abstract: 309,839. British Thomson-Houston Co., Ltd., (Assignees of Carpenter, C. F.). April 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Controllers, actuating and latching. - In a change-over switch of the kind used for starting induction motors on reduced primary voltage the change-over switch members 14, only one of which is shown in the drawing, are mounted on an insulating shaft 20 normally centred in the neutral position by a biasing spring 26, and are moved first to the starting position and afterwards to the running position by a handle 38 on a shaft 30 which is linked to the switch shaft through a short roller-ended arm 32 engaging a fork-ended longer arm 23, the arm being dimensioned and shaped so as to increase the leverage during the act of closing. A double notched gravity latch 40 allows initial closure to make on the starting side and not on the running side, but falls too slowly to interfere with a quick throw over from the starting to the running side. An electromagnet and a toggle linkage, not shown in the drawing, are disposed above and connected to the latch 40 in such a way that the toggle is straightened when the running circuit is closed, the latch being thereupon held rigid to prevent movement of the switch. The electromagnet must be deenergized before the switch can be returned to neutral. There is also a gravity latch 56 which blocks a quick movement during the return to neutral, and thus prevents accidental reclosure on the starting side.
Patent GB-872493-A (GB)
Title: Spring upholstery structure
IPC: A47C7/28
Filed: 1959-04-07
Abstract: 872,493. Spring upholstery. STUBNITZ GREENE CORPORATION. April 7, 1959 [June 2, 1958], No. 11753/59. Class 52(4). In a spring cushion a steel wire spring element 10 bridging frame portions 34, 36 has a relatively straight portion 12 of flattened cross-section and torsion structural parts 14, 16 having oppositely directed U-loops 22, 24 the part 14 resting on frame portion 34 and the part 16 being suspended from frame portion 36. The top border frame 44 of the cushion spring structure is secured to part 14 by a clip 46. In a modification, Fig. 9, a leg part 84 of the spring element 10<SP>11</SP> is supported on ledges 86 formed from frame 36<SP>11</SP> and an L-shaped end portion 82 abuts an extension 90 causing leg 84 to function as a torsion spring bar.
Patent GB-992437-A (GB)
Title: Process and apparatus for applying film-forming liquid compositions to webs
Inventor: PRZYBILLA RUDOLF
IPC: D06B1/14
Filed: 1963-03-25
Abstract: 992,437. Web coating apparatus. E.I.DU PONT DE NEMOURS & CO. March 25, 1963, No. 11761/63. Heading D1L. In a process for applying a film-forming liquid composition to webs on the overflow principle in which a film of the liquid is formed by such liquid overflowing over a weir, the said weir is a roll, the liquid being supplied to one side of such roll and overflowing over the top of the roll to form a film flowing down the other side of the roll, and the web is moved past a position on said other side of the roll below the top thereof so that the liquid composition is taken up from such film and applied to the web. The apparatus shown comprises a vessel having an entry section 1 separated except at the bottom from an adjacent section 9 which in turn is separated by partition 10 from a third section 6 containing a cleaning liquid. A roll 3 dips into the cleaning liquid and adjacent thereto is a guide roll 11. Partition 10 is angled at the top to define a drying zone 7 and a chamber 5 is provided in which a reduced pressure can be maintained. In use coating liquid is fed into section 1 and rises in section 9 into contact with roll 3 until it reaches overflow point 2. It then flows in a thin film to the line of application 4 between rolls 3 and 11 where it comes into contact with the film base 12 and is applied thereto. The roll 3 may be stationary in which case reduced pressure may be applied to chamber 5, for application of liquid beyond a specified viscosity and film thickness, to effect adequate penetration of the liquid into slit 4. Alternatively the roll 3 may be rotatable. After application of the liquid roll 3 is cleaned in the bath 6 and dried in drying zone 7. The vessel and roll 3 may be provided with heating means.
Patent GB-741811-A (GB)
Title: Improvements in or relating to riveting and like machines
IPC: B21J15/32
Filed: 1952-05-09
Abstract: 741,811. Riveting. BIFURCATED & TUBULAR RIVET CO., Ltd., WHITLOCK, W. E., and DISBURY, A. R. April 10, 1953 [May 9, 1952], No. 11796/52. Class 89 (3). [Also in Group XXX] Means for feeding bifurcated rivets 19 one at a time from a runway 13 to a riveting machine comprises a partially rotatable cylinder 17 formed with a deep groove 20 having a straight side 21 and an inclined side 22. The side 22 is the boundary between the groove 20 and a relatively shallow cut-away part 23 which deepens from the right-hand side to the left, Fig. 4, until at 24 it is as deep as the groove, whereby a succeeding rivet is disengaged from the leading rivet even if interlocked therewith. The cylinder 17 is operated by a shaft 36 which is moved inwards against a spring 33 by a machine part. The shaft operates through pins 37 engaging helical slots 38 in a cylinder 27 which carries a pin 26 engaging a depression 25 in the cylinder 17. Specifications 348,224 and 541,051 are referred to.
Patent GB-909619-A (GB)
Title: Improvements relating to mercury arc rectifiers
Inventor: PROUT DONALD CORNELL
IPC: H01J13/12
Filed: 1960-04-04
Abstract: 909,619. Metal vapour discharge apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 30, 1961 [April 4, 1960], No. 11846/60. Class 39 (1). A mercury arc rectifier of the type in which the arc is initiated by lowering a mercury cup which is in contact with a starting anode, comprises a mercury cup 1 having at least one surface interrupted by a plurality of recesses 4 so as to restrict movement of mercury contained by the cup when the cup is vibrated. Preferably, the recesses are cylindrical of small cross-sectional area relatively to that of a shallow cylindrical recess 3 forming the base of the cup which itself is large relatively to that of the starting anode 6, and the spacing between adjacent recesses is less than the diameter of the base of the starting anode. The cup may be fixed to a plunger 7 of a solenoid so that upon activation of the solenoid the cup is lowered beneath the surface of a liquid cathode pool so as to replenish the supply of mercury therein.
Patent GB-908531-A (GB)
Title: A process for the electrothermal production of magnesium
IPC: C22B26/22
Filed: 1959-04-08
Abstract: 908,531. Producing magnesium. MAGNESIUM THERMIQUE MAGNETHERM. April 8, 1959 [April 9, 1958], No. 11889/59. Class 82 (1). In an electro-thermal process for the production of magnesium, the magnesia-containing material is reacted with a metallic reducing agent in a liquid slag containing (a) calcium oxide, (b) silica, and (c) alumina, the molar ratio a/b being at least 1.8 and the molar ratio c/b being at least 0.26. The reaction is effected under reduced pressure and the reducing agent may be high-grade ferro-silicon, pure silicon or an iron-silicon-aluminium alloy. In the furnace shown, calcined dolomite and alumina are fed from pipes 13 on to slag formed in a previous reduction. The slag is kept molten by electrodes 4, 12. Ferro-silicon is then fed on to the slag from a further pipe 13 and the magnesium produced is condensed at 17 and falls into a water-cooled crucible 22. When the slag metal reaches 14-14, the furnace is purged with argon and excess slag and low-grade ferro-silicon is withdrawn at 6 until the slag level drops to 15-15. The vacuum is then restored and charging continues as before until the required amount of magnesium has been produced. The calcined dolomite and ferro-silicon may be charged simultaneously if the temperature of the dolomite has not been allowed to drop below 800‹ C. after calcining.
Patent GB-1488292-A (GB)
Title: Method of treating alunite ore
IPC: C01F7/0686
Filed: 1975-03-21
Abstract: 1488292 Aluminium hydroxide NATIONALSOUTHWIRE ALUMINUM CO 21 March 1975 [21 March 1974] 11979/75 Heading ClA Aluminium hydroxide is recovered from an ore containing alumite by, in order, (a) roasting to remove water of crystallization, (b) leaching with a weak aqueous base (as defined) at pH 8-12 to dissolve sulphate and alkali-metal; (c) digesting the leached solid with an aqueous mixture of alkali-metal hydroxides to extract the Al content, (d) removing silica from the digestion liquor by precipitation as sodium aluminium silicate and (e) precipitating and separating aluminium hydroxide from the treated digestion liquor. Where aqueous ammonia is used as the base in step (b) it may be removed from the ammonium sulphate formed using a lime column. Step (d) may be effected by heating or by seeding; sodium aluminium sulphate may be precipitated simultaneously.
Patent GB-1293513-A (GB)
Title: Self cleaning oven overheat safety control
IPC: F24C14/02
Filed: 1971-04-29
Abstract: 1293513 Controlling heat cleaned ovens WESTINGHOUSE ELECTRIC CORP 29 April 1971 [26 May 1970] 12067/71 Heading F4W [Also in Division H1] In a heat cleaned cooking oven having a latch including a crank 38 and draw-bar 40 biased to the unlatched position of Fig. 4 and moved to the latched position of Fig. 5 by the engagement of a bolt 18 with the crank 38, latching the oven door adjusts a thermally sensitive safety switch so that it opens only if a cleaning temperature is exceeded. In the unlatched condition, an arm 48, Fig. 4, depending from draw-bar 40 engages an insulator 76 carried by one contact spring 68 of the safety switch 66 so that movement of a bimetallic strip 74 produced by temperatures above the cooking range will open the switch. In the latched position, the insulator 76 is released to abut a stop 80 adjusted so that the switch 66 is opened by the engagement of bimetallic strip 74 with insulator 72 only at temperatures above the cleaning range. A thermally operated locking member 62 prevents unlatching of the door during heat-cleaning. The switch assembly may have contact springs 82 to control an indicator light, and an insulator 86 on a switch contact spring engages the end of the dependent arm 48 to indicate that the door is latched. In another embodiment, the bimetal strip operating the locking member 62 carries two pushers 94, 96, Fig. 9, the movement of the draw bar and its dependent arm 48 moving the insulator 72 carried by switch 66 so that in the unlatched condition the switch 66 is opened by pusher 94 at a lower temperature than that at which it is opened by pusher 96 in a latched condition.
Patent GB-1032508-A (GB)
Title: Heat-developable diazotype sheet material
IPC: C07D235/16
Filed: 1964-03-23
Abstract: 1,032,508. Heat-developable diarotype compositions. CHEMISCHE FABRICK L.VAN DER GRINTEN N.V. March 23, 1964 [April 5,1963].No 12152/64. Heading G2C. A two-component diazotype material comprises a support coated with two or three layers, one layer containing a benzene diazonium com - pound with a tertiary amino group in the P-position to the diazonium group and an acide reacting compound, one of the other layers containing a hydrophobic film-forming binder and non-coupling benzimidazole of formula wherein R 1  is hydrogen, halogen, alkyl, aralkyl which may be substituted in the alkyl group by hydroxy, an aryl group which may be substituted, an alkyl group substituted by one or more hydroxy groups, aminoalkyl, haloalkyl cyanoalkyl, carbonyl, alkylcarbonyl, alkoxycarbonyl, or amidocarbonyl, R 2  is hydroxyalkylene, R 3  - R 8  are hydrogen,halogen, alkyl, alkoxy or a nitro group, and a heatsensitive compound which neutralises the acid-reacting compound on heating, and are of the layers containing a 2, 3-di-hydroxynaphthalene or its 6- sulphonic acid as a coupler and zinc oxide, zinc hydroxide,a zinc salt a zinc/nitrogen-containing organic compound complex specified acid-reacting compounds are carboxylic acids, benzene sulphonic acid and hydrochloric acid whilst acid-neutralising compounds are amines especially N-acyl- N<SP>1</SP> -hydroxy-alkyl alkylenediamines, an amine/bisphenol A addition product, a bisamide of oxalic acid and urea. The material may be imagewise exposed to light or heat and developed or fixed by overall exposure to heat or light respectively. If a three-layer material is used, the diazonism salt and the benzimidazole are preferably the top and bottom layers and the intermediate layer may contain the heat sensitive compound. Alternatively an intermediate layer may be formed by coating a polyvinyl acetate layer with a diazomium compound, treating the layer with ethanol which dissolves the diazo compound on the surface and swells the polyvinylacetate to leave intermediate layer which is overcoated with a benzimidazole-containing layer
Patent GB-262042-A (GB)
Title: Improvements in or relating to apparatus for bringing liquids and gases into contact
IPC: F25J3/00
Filed: 1926-05-11
Abstract: 262,042. Soc. L'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. Nov. 28, 1925, [Convention date]. Liquids, treating with gases.-In columnar apparatus for treating liquids with gases, the quantity of liquid on each plate is made dependent on the viscosity and surface tension of the liquid, the plates in those regions where the liquid has a high viscosity and 'small surface tension being adapted to contain more liquid than plates in regions where the viscosity is less and the surface tension greater. In columns for rectifying liquid air, the plates in the upper portion where the liquids and gases are rich in nitrogen are arranged to contain more liquid than the plates in the lower portion, either by increasing the height of the overflow or the area of the plates in the upper portion. The area of the plates may increase uniformly or in tiers and the upper plate may contain three times as much liquid as the lower plate.
Patent GB-459016-A (GB)
Title: Improvements in machines for cleaning floor coverings
IPC: A47L11/283
Filed: 1936-04-29
Abstract: 459,016. Cleaning carpets, rugs, &c. HILD, F. C., 1313, West Randolph Street, Chicago, U.S.A. April 29, 1936, No. 12154. [Classes 19 and 138 (i)] A machine for cleaning floor coverings comprises a rotary brush driven by a motor, the back of the brush comprising concentric bridge portions and perforated annular recessed portions so that liquid supplied towards the centre of the brush is distributed under centrifugal force to the recesses and hence to the upper parts of the bristles. In the construction shown, the bristles 21 are secured in concentric rows to a metal back 20 which is provided with a hub having a bayonet joint connection with a shaft adapted to be driven by an electric motor 11. The upper face of the back 20 has grooved portions 22 with holes 23 for the passage of liquid to the bristles from a pipe 19. The liquid is contained in a reservoir 15 connected to the pipe 19 by a flexible pipe 18, the flow of liquid being controlled manually by means of a rod 17. The wheels 33 are adjustably mounted.
Patent GB-830601-A (GB)
Title: Improvements relating to electron multipliers
Inventor: ARCHARD GEOFFREY DENNIS
IPC: H01J43/20
Filed: 1955-04-27
Abstract: 830,601. Electron multipliers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 25, 1956 [April 27, 1955], No. 12179/55. Class 39(1). In an electron multiplier comprising a cathode, an anode or a plurality of dynodes arranged therebetween, the operative surfaces of these electrodes are located on a line or face laterally across this line alternately in opposite directions, Means are provided for producing parallel magnetic and electric fields along this line, the electrons being connected to suitable potentials to obtain a uniform electric field. As shown the electrodes are flat plates and electrodes from photo-emissive cathode C follow helical paths between each of the dynodes D1-D5 to the collector anode A, the transit time spread being small since electrons which leave an electrode together arrive at the next electrode at the same time. In a modified arrangement the fields extend along a curved path and the electrode surfaces are slightly curved to conform to this path. The electric field is terminated by electrodes E, E 2  and the magnetic field is produced by solenoid For a permanent magnet. According to the Provisional Specification the dynodes may comprise screens having short tubular apertures distributed over their area.
Patent GB-945243-A (GB)
Title: A system for producing electrical digital signals
IPC: G06F1/03
Filed: 1960-04-07
Abstract: 945,243. Electric selective signalling systems. BENDIX CORPORATION. April 7, 1960 [April 15, 1959], No. 12420/60. Heading G4H. In a device for producing an electric signal representing a predetermined arbitrary function of a physical displacement the displacement is applied to a sensing head 513, Fig. 1, which scans a continuously rotating cylinder 1 bearing marks 529 representing the predetermined arbitrary function, and a counter 543 counts these marks either positively or negatively between the sensing of a reference mark 503 by a reference head 527 and its sensing by the displaced head. The counter then indicates the desired predetermined arbitrary function of the displacement input. The sensing of the reference mark by the reference head resets the counter and turns a flip-flop 539 on to open gates 541 to the marks 529 and the sensing of the graph 5 turns flip-flop 539 off and closes the gate 41. In the preferred embodiment sensing is effected photo-electrically but it is stated that it could be magnet, inductive or capacitive. In a second embodiment (Fig. 2, not shown) a disc is used in place of the cylinder.