baber/WOPTO huggingface dataset:
Patent GB-652102-A (GB)
Title: Method of providing gas-binding layers in electric discharge tubes
IPC: H01J7/18
Filed: 1947-12-18
Abstract: 652,102. Discharge apparatus; depositing substances by discharges. PHILIPS ELECTRICAL, Ltd. Dec. 18, 1947, No. 33459. Convention date, Oct. 5, 1946. [Class 39 (i)] A getter layer in or for a discharge tube is formed by the precipitation of one or more of the metals zirconium, titanium, tantalum and niobium from a cathode in a glow discharge, the layer not forming part of, or constituting, an electrode. The layer may be deposited on the cooled wall of the tube or on an iron or mica plate, and the discharge and distances are adjusted to obtain a layer which is as black as possible to obtain greatest absorption. Specific examples are given of the quantities of oxygen, hydrogen, nitrogen and carbon monoxide absorbed by zirconium, titanium, tantalum and niobium before and after heat treatment of the layer to drive off hydrogen. The layer may be produced in a separate discharge tube and is hydrogenized before removal; after insertion for gettering purposes in a tube, it is heated to reduce the hydride. The use of zirconium in mercury vapour tubes is not desirable. The metal to be deposited may be rolled to form a hollow cathode, e.g. of 2.5 mms. diameter, which is pinched at one end and arranged so that the open end faces the surface on which the metal is to be sputtered. The quantities of oxygen absorbed by a zirconium layer are also specified when deposited during a 10 minute discharge in argon at 5mms., 2.6 mms. and 20 mms., the discharge current being 400 m.A. The zirconium cathode may be supported on a molybdenum wire and spaced from a wire anode, Fig. 1 (not shown). In another form, a zirconium tube 7, Fig. 2, is secured to an anode support so that its open end faces the tube base. An initial direct discharge in argon at 10 mms. between the anodes 5 passes to the cathode 7.
Patent GB-1048717-A (GB)
Title: Magnetically operated sealed electric switch unit
IPC: H01H51/28
Filed: 1963-08-23
Abstract: 1,048,717. Magnetic switches. STANDARD TELEPHONES & CABLES Ltd. Aug. 23, 1963 [Aug. 30, 1962], No. 33472/63. Addition to 894,378. Heading H2B. A sealed magnetic contact device for operation by a surrounding coil or a movable magnet has three sealed-in terminals 10, 11, 12 and a U-shaped member 3, 4, 5, 6 carried by terminal 12 and having a contact 8 movable between fixed contacts 7, 9 on terminals 10, 11. The contact 8 is mounted on a resilient limb 6 of the U-shaped member the limb 6 being deflected by an armature 3 rockable on a magnetic member 13 to bridge a magnetic gap between members 13, 4 joined by a flat non-magnetic member 5. In an alternative device (Fig. 3, not shown) the resilient contact carrying limb 27 is secured to a pivoted armature 23, 24 biased by a helical spring 30. A further arrangement (Figs. 4 and 5, not shown) has its armature 43 supported on the limb 6. Arrangements for setting the contact pressure and operating characteristics during manufacture are described.
Patent GB-1469475-A (GB)
Title: Fingerprint detection
IPC: A61B5/117
Filed: 1975-07-14
Abstract: 1469475 Fingerprinting DEFENCE SECRETARY OF STATE FOR 14 July 1975 [29 July 1974] 33488/74 Heading B6C Fingerprints are developed by contact with iodine vapour and fixed by treatment with a solution of a diamine in a liquid fluorinated hydrocarbon, the diamine being such as to produce a quinonoid structure when oxidized. The hydrocarbon may be 1,1,2-trichloro-trifluoroethane. The diamine may be p-dimethylamino-diphenylmethane, p,p-tetramethyl-diamino diphenylmethane, benzidine or 2,7- diaminofluorene.
Patent GB-682153-A (GB)
Title: Improvements in or relating to thermionic valves employing secondary electron emission
Inventor: BULL CABOT SEATON
IPC: H01J43/16
Filed: 1946-11-12
Abstract: 682,153. Thermionic valves. ELECTRIC MUSICAL INDUSTRIES, Ltd. Oct. 8, 1947 [Nov. 12, 1946], No. 33556/46. Class 39(i) A thermionic valve used for amplification comprises a thermionic cathode 4, a control electrode 5, a screen electrode 6, a secondary cathode 1, a secondary electron collecting electrode 2 and beam focusing electrode 10, the secondary cathode 1 having a secondary electron emissive coating the emission from which increases with increasing temperature and the secondary cathode being of such small size and the dimensions and spacing of the other electrodes being such that under the operating conditions for which the valve is designed, the secondary cathode is maintained only as a result of bombardment by primary electrons, and by heat communicated from other electrodes of the valve, at a temperature which is more than half, but does not exceed, the temperature (on the Centigrade scale) at which the valve becomes unstable due to thermionic emission from the secondary cathode. The secondary cathode 1 is formed by coating a tubular nickel base with a mixture of refractory oxides containing at least 15 per cent by weight of alkaline earth oxides, e.g. magnesium oxide and barium oxide in the proportion of 2:1 by weight, the coating being between 10<SP>-4</SP> and 5 X 10<SP>-4</SP> inches thick, as described in Specifications 670,554 and 670,582. The electrodes 5 and 6 are formed with approximately elliptical turns of molybdenum wire, The focusing electrode 10 is of elliptical cross-section and is connected to the indirectly heated thermionic cathode 4. An arcuate nickel heat shield 11 is secured to one of the supporting pillars for the screen electrode 6. The ends of the electrodes and the supporting pillars therefor are insulated from each other by discs of mica 12 to prevent transfer of heat by conduction. Electrostatic shields 13, cooling fins 14 for the control electrode 5 and a gettering cup 15 are provided. The valve when in use is normally enclosed within a metal shielding can. Dimensions and voltages of electrodes are given. The thermionic cathode 4 in operation reaches a temperature of about 800-900‹C. The temperature reached by the secondary cathode 1 is about 500‹C, instability not occurring until about 600‹C. A multiplication factor of between 3.5 and 4 is obtained which is maintained approximately down to about 350‹C, but with temperatures considerably lower than 350‹C the factor falls to about 2.7 or lower. Specifications 489,923, [Group XXIX], 586,000 and 601,966 also are referred to.
Patent GB-176121-A (GB)
Title: Improvements in and relating to sprays
IPC: A61M11/06
Filed: 1920-11-30
Abstract: 176,121. Saunders, W. H. Nov. 30, 1920. Air-pressure sprayers. -A spray or nebulizer, Fig. 1, for medicaments or scents, and applicable for nasal or aural treatment, comprises a liquid-container 1 having an air nozzle 7, terminating in a single jet, to which is attached a tube 5 terminating in a pressure bulb. Two or more suction tubes 8, 9 end in nozzles bent at right-angles and are sealed to the nozzle 7. Fig. 2 shows an aural attachment.
Patent GB-1269564-A (GB)
Title: Process for the production of hydrogen cyanide
IPC: B01J37/02
Filed: 1969-07-04
Abstract: 1,269,564. Hydrogen cyanide; hydrogen. DEUTSCHE GOLDUND SILBERSCHEIDEINSTALT. 4 July, 1969 [6 July, 1968], No. 33740/69. Heading C1A. Hydrogen cyanide and hydrogen are produced by rapidly heating a mixture of acetonitrile and ammonia to a temperature of from 1100 to 1400 C. in the presence of a platinum group catalyst, and rapidly cooling the reaction products containing hydrogen cyanide and hydrogen to below 500 C. In an example an approximately equimolar gas stream of ammonia and acetonitrile was passed through a highly sintered alumina tube the inner walls of which had been impregnated with a mixed Pt/Al catalyst. A temperature of 1220 C. was maintained inside the tubes and after a contact time of 0À16 seconds the gas leaving the reaction zone was cooled to 300 C. Catalysts specified are platinum, ruthenium and palladium or mixtures thereof. Non-platinum group metals may also be present in amounts up to 90% of the catalyst composition; Al and Mg are specified and may be present in metallic, oxide or nitride form. Suitable carriers are thorium oxide, Al 2 O 3 , ZrO 2 , SiC or SiO 2 .
Patent GB-1519854-A (GB)
Title: Oxgen lance
IPC: C21C5/52
Filed: 1975-08-14
Abstract: 1519854 Mounting oxygen lances SIEGERLANDER KUPFERWERKE GmbH 14 Aug 1975 [14 Aug 1974] 33930/75 Heading F4B A lance 16 for introducing oxygen into a furnace molten metal bath comprises an arcuate stem 21 and an arcuate head portion 22, and mounting means for adjusting both the distance of the lance head 22 from the metal surface 4 and the incident angle of the oxygen jet issuing therefrom, the mounting means comprising a carriage 9 supported by means of guide rollers 10, 11 and 12 for longitudinal displacement on an arcuate guide rail 8. The guide rail 8 is equipped with stops 13 for limiting the path of travel of the carriage, and means 14 are provided for securing the carriage in any desired position on the guide rail by friction or clamping. A connector element 15 comprising pipe unions 17 and 18 for coolant water and a union 19 for oxygen supply is fixed to the carriage 9. A longitudinally displaceable heat shield 23 is provided on the lance to cover an inlet opening 6 in the furnace side wall 1. The lance is fitted with a weight relieving device comprising a load cable 25 extending from and tensioned by a spring drum 24, the cable being guided over a pulley 26 and connected to the carriage 9. The guide rail 8 may be arranged perpendicular to or to be swivelled about a vertical axis so as to form an acute angle with the furnace wall 1.
Patent GB-1401004-A (GB)
Title: Disc brakes for vehicles
IPC: F16D65/097
Filed: 1971-07-20
Abstract: 1401004 Disc brakes GIRLING Ltd 10 July 1972 [20 July 1971] 33972/72 Heading F2E In an hydraulically operated spot type disc brake a caliper 12 is mounted for sliding movement in a stationary drag-taking member 1 this sliding movement being effected between complementary pairs of bearing surfaces on opposite sides of the disc and the axes A, B, of the bearing surfaces being offset from each other in order to resist movement of the caliper 12 with respect to the stationary member 1 in a circumferential and/or radial direction. As shown, the axes A, B are offset radially but they may be offset circumferentially or both radially and circumferentially. The bearing surfaces are formed by bearing boxes; each bearing box comprises a respective semi-cylindrical portion 7 or 8 provided on ribs 5, 6 of the member 1, and a respective semi-cylindrical shell 9 or 10 connected respectively to ribs 5, 6 by screw 11. The bearing box 7, 9 slidably receives an extension 16 of caliper 12 which extension 16 provides a cylinder bore 17 housing a piston 25 for direct actuation of a pad assembly 24 the backing plate of assembly 24 having an extension 27 received within piston 25. The bearing box 8, 10 on the other side of the disc may also receive a caliper extension, but as shown it receives a fitting 21 press fitted into a through bore 20 of limb 15 of caliper 12, and the backing plate of an indirectly actuated pad assembly 23 is provided with an axial extension 27 which is closely received within the fitting 21. In another construction a sliding connection is provided between the indirectly actuated pad assembly 23 and the fitting 21, and between the directly actuated pad assembly 24 and the piston 25. In a further construction the drag-taking member 1 is provided on opposite sides of the disc with opposed axially spaced inwardly directed integral or other axial extensions of circular outline. Each extension is received in a complementary journal defined by inner cylindrical surfaces of a pair of shells which are detachably clamped together, one shell of each pair comprising a part of a limb of the caliper on that side of the disc.
Patent GB-813205-A (GB)
Title: An electrical connection assembly
IPC: H01H85/20
Filed: 1956-11-07
Abstract: 813,205. Two-part couplings. ELASTIC STOP NUT CORPORATION OF AMERICA. Nov. 7, 1956 [Nov. 17, 1955], No. 33986/56. Class 38 (1). A readily separable connector for the connection of cables 4, 6 through a circuit element such as a cartridge fuse 26 comprises a pair of resilient sockets 18 connected to the cables 4, 6 respectively and embedded in resilient insulating bodies 32, 34 moulded round the ends of the cables. A cylindrical insulating body portion 48 together with a two-part spacer sleeve 66 is a close fit round the circuit element and is adapted, on entry of the caps 20, 22 of the circuit element into the contacts 18, to telescope over the body 32 and into the body 34 to form a water-tight enclosure.
Patent GB-1181950-A (GB)
Title: An Ice-Breaking Attachment for a Ship
Inventor: RASTORGUEV VLADISLAV VLADIMIRO
IPC: B63B35/08
Filed: 1968-07-17
Abstract: 1,181,950. Vessel's ice breaking attachment. TSENTRALNOE TEKHNIKO-KONSTRUKTORSKOE BJURO MINISTERSTVA RECHNOGO FLOTA RSFSR. 17 July, 1968, No. 34000/68. Heading B7A. In an ice-breaking attachment 1 for a ship 4, said attachment having a vibratory mechanism 2, the bottom of the attachment has an elongated protrusion 5 having a wedge-shaped leading end 6 gradually flaring toward the trailing end. Pressure pipes 7 of an hydraulic wash-off system including a pump 8 and ducts 9 extend through the walls of the protrusion.
Patent GB-1499384-A (GB)
Title: High-tension overhead lines
IPC: H01B7/29
Filed: 1975-08-15
Abstract: 1499384 Electrical couplings FELTEN & GUILLEAUME CARLSWERK AG 15 Aug 1975 [22 March 1975] 34030/75 Headings H2C H2E and H2H [Also in Division H1] To increase the economy and capacity of an overhead line 1 coolant is passed through it and the heat extracted from the coolant at exchange 12 is usefully employed. Current flow between sections of line is maintained by bridge 8 while the coolant is passed through insulators 9, via pumps 10, to exchange 11, thence to the next section of line. Water is the recommended coolant and the extraction interval is preferably greater than 5 km. although a gaseous e.g. CCl 2 F 2  coolant may be used.
Patent GB-467028-A (GB)
Title: Improvements in or relating to high-vacuum distillation
IPC: B01D3/12
Filed: 1935-12-09
Abstract: <PICT:0467028/III/1> In a short-path high-vacuum distillation system comprising an even number, and at least four, of distillation units, the condensates from the even-numbered units are returned to the evaporating surfaces of the preceding odd-numbered units, those from the odd-numbered units are returned to the same evaporating surfaces, and the residues are transferred in the reverse direction from one unit to the next.  In a six-unit system comprising evaporating and condensing surfaces E1 ... E6 and S1 .... S6 respectively, the condensates are returned to preceding units along the paths indicated by dotted lines, the residues proceeding along the paths indicated by thin full lines.  In operation two collector vessels C1, C2 are filled with distilland and after a period of time one of the collectors will contain the purest condensate or residue, whichever it is desired to obtain.  This batch method of working may be made continuous by bleeding the components from the vessels C1, C2 at a suitable rate and feeding a corresponding quantity of distilland to any point of the system.  The process may be applied to a mixture of free fatty acids and triglycerides, and also to vitamin - containing substances such as a fish-liver oil.  Specification 434,726 is referred to.
Patent GB-817971-A (GB)
Title: Improvements in or relating to attachment devices for hardness testing instruments
Inventor: POCKNEE JAMES KITCHENER
IPC: G01N3/42
Filed: 1956-11-08
Abstract: 817,971. Electromagnets. PENETRASCOPE Ltd. Nov. 4, 1957 [Nov. 8, 1956], No. 34189/56. Class 35. [Also in Groups XIX and XXV] An attachment device, for a hardness tester 10 of the indentation type, comprises a frame 32 in which the tester can be adjustably mounted so as to be movable to and from the test piece 43, and an electromagnet or electromagnets 33 having at least three spaced-apart pole pieces 50, 51, at least one of which is movably mounted. Each electromagnet 33 comprises two pole pieces 50, 51, of which one, 51, is movable, two core pieces 52, 53, and a magnetic yoke member 62. Energization of coils 60-64 forms a closed magnetic circuit comprising the yoke 62, the cores 52, 53, the poles 50, 51 and the test piece 43. The pole pieces 50, 51 are removable and may be replaced by pieces having different shapes, the movable pole pieces being held in an adjusted position by a cam 70. Specifications 668,415 and 714,164, [both in Group XIX], are referred to.
Patent GB-1385709-A (GB)
Title: Circuit for forming a time sequence of signals
IPC: G01S3/809
Filed: 1972-07-21
Abstract: 1385709 Directional reception of wave-energy signals FRIED KRUPP GmbH 21 July 1972 [23 July 1971 18 Dec 1971] 34249/72 Heading H4D In a beam-forming system the m receiving transducers of an array are individually interrogated in succession repetitively, the interrogated signals are read-in to a memory and are moved step-wise through consecutive locations in the memory, read-out from the memory takes place at those locations which correspond to the time delays required to produce cophasal outputs from a group of n(<m) adjacent transducers in response to an incident (e.g. sonic) wavefront, the n transducers defining two sub-groups (each of n/2) arranged symmetrically on respective sides of the beam axis, the signals read-out are fed to two partial adders to form respective partial group signals for the two sub-groups, and the two partial group signals are summed in a final adder, at the output of which successive group signals, associated with respective different directions of the beam, are formed as the interrogation proceeds. For the Fig. 4 embodiment the interrogation signals from transducers Wi (i= 1 to m) are stepped through memory 6s, each step corresponding to a switch (at 4s) between successive transducers. The partial group signals for subgroups Gl and Gr (Fig. 1) are formed respectively by partial adders 8s2, 8s1 from the delayed signals and are summed at 8eS. The group signals from, 8eS, are displayed on a CRT as radial lines whose length and direction indicate signal strength and beam direction. Details and modifications: (a) For analogue signal handling the memory is a moving magnetic disc, wire or tape. For digital handling the memory comprises shift-registers. The digital handling may be in series binary format (as in Fig. 4) or parallel binary format (Fig. 5, not shown). (b) The memory read-out is directly from cells within the memory locations (as in Fig. 4) or is taken from the ends of those locations and fed via further delay shift registers to the partial adders (Fig. 6, not shown). (c) The adders are arranged to add the memory read-out signals simultaneously or (Fig. 7, not shown) in a step-wise manner. (d) For beam-shaping, weighting-factors are applied to the memory read-out signals before their addition (Fig. 8, not shown). (e) Interpolation between the quantized delays afforded by the memory may be achieved with a weighting circuit bridging the input and output of a memory location (Fig. 9, not shown). (f) For array geometries other than circular, the required set of signal delays differs from one beam direction to another and is selected by programmed switches connected to the memory locations (Fig. 8, not shown). (g) To speed up the interrogation process several interrogation circuits operating in parallel may be used, supplying respective paralleled memories (not shown).
Patent GB-1408965-A (GB)
Title: Moving grate incineration furnace
IPC: F23G5/00
Filed: 1973-07-18
Abstract: 1408965 Incinerators KUREHA KAGAKU KOGYO KK 18 July 1973 34288/73 Heading F4B Refuse, particularly plastic waste, is burnt in a furnace on a layer of non-combustible material moved through the furnace by a conveyor and removed together with the incinerated residue. Refuse fed into a furnace at 1 burns on a layer of mineral pebbles or other non-combustible material supplied from a hopper 2, the refuse is ignited by a burner 4, and burns with air from inlets 7 within the incombustible layer, and supplied below the travelling grate by a blower 11. Additional air inlets 6 and an auxiliary burner 5 are arranged above the grate. The incinerated residue and incombustible material are evaporated in a sieve 12, the incombustible material being returned to the hopper 2. The grate may be an endless band of metal mesh, or formed from overlapping slats (Fig. 4b), or the layer may be moved over a fixed grate by pushers secured to an endless band (Fig. 2). The furnace may comprise a number of endless grates arranged step-fashion, to ensure mixing of the partially burnt refuse with the heat retaining incombustible material, and a second hopper 2<SP>1</SP> forms a sandseal for the combustion chamber.
Patent GB-1126127-A (GB)
Title: Process for polymerization and copolymerization of acrylonitrile
Inventor: VLAGIU ION
IPC: C08F20/44
Filed: 1966-08-01
Abstract: 1,126,127. Polymerization of acrylonitrile. RUMANIA, MINISTRY FOR CHEMICAL INDUSTRY. 27 Oct., 1967 [1 Aug., 1966], No. 34479/66. Heading C3P. Acrylonitrile is polymerized, or copolymerized together with one or more other monomers, in ethylene carbonate by the action of ionizing radiation, nitrogen being bubbled into the reaction mixture to form a nitrogen atmosphere above the liquid surface during polymerization. The reaction mixture may also include water. The ionizing radiation is preferably gamma radiation provided by a Co<SP>60</SP> source. Examples illustrate the polymerization of (a) acrylonitrile, (b) acrylonitrile-vinyl acetate-N-vinylpyrrolidone, and (c) acrylonitrile-vinyl acetate.
Patent GB-847813-A (GB)
Title: Temporary corrosion preventive of the soft film type
IPC: C23F11/12
Filed: 1956-11-12
Abstract: A temporary corrosion preventive of the soft film type comprises a suitable oil (e.g. mineral oil) or petroleum jelly and an ester of chromic acid and a tertiary alcohol, the ester being soluble in the corrosion preventive and capable of passing out of solution therein and into solution in water, should water come into contact with it, whereby the water is rendered capable of passivating metal with which it comes into contact.  The tertiary alcohol is of the formula R1R2R3COH where R1, R2 and R3 are the same or different aliphatic, cycloaliphatic or aromatic hydrocarbon radicals.  In the example a corrosion preventive consists of 0.5 to 2 parts of di-tert-butyl chromate and 98 to 99.5 parts of petroleum jelly. Other esters referred to are those of 1-methyl-cyclohexyl, and 1-tert-butyl-cyclohexyl alcohols and of dimethyl-phenyl-carbinol. The products are suitable for the protection of any metal surface.
Patent GB-474187-A (GB)
Title: Process of treating objects for the destruction of insect life
IPC: A01M1/06
Filed: 1936-12-16
Abstract: Lice &c. in walls, furniture, &c. are destroyed by going over the surfaces with a unipolar electrode carrying high-frequency discharges of sufficiently high tension to destroy the vermin by direct action. The process may be combined with the use of high-frequency sound waves, and with liquid, solid, or gaseous poisonous substances.  To provide an easier return path for the currents, metal powder, salt solutions, &c. may be injected into cracks or crevices of the surfaces to be treated.
Patent GB-469176-A (GB)
Title: Improved end door fastener on railway vehicles such as mineral and goods wagons
IPC: E05B65/14
Filed: 1936-12-12
Abstract: 469,176. Fastenings. BAILEY, R. Dec. 12, 1936, No. 34568/35. [Class 44] The end doors of wagons are secured by hooks 3, pivoted at 4, on the sides of the wagon and engaging the ends of a cross-bar 1 on the door. The hook handle is locked by a pin inserted through a hole in a lug 5 in which the handle works. In the form shown in Fig. 5, the hook is locked by a pin 8 inserted through holes in lugs 7 on the bar 1, and through a hole in the hook.