baber/WOPTO huggingface dataset:
Patent GB-1141709-A (GB)
Title: Improvements in and relating to magnetohydrodynamic apparatus
Inventor: WILKINSON TERRENCE SIDWELL
IPC: H02K44/14
Filed: 1966-07-28
Abstract: 1,141,709. Generators operating by electromagnetic interaction with fluids. C. A. PARSONS & CO. Ltd. 10 July, 1967 [28 July, 1966], No. 33932/66. Heading H2A. M.H.D. apparatus has a duct in which the working fluid flows radially with respect to the axis of the magnetic field produced by a hollow cylindrical magnet and the duct includes two opposed walls lying transverse to the axis of the magnetic field and spaced apart by radial walls. The working fluid enters the generator duct at inlet 8 through connection 9, which may be a combustion chamber, and flows radially in duct 3, which has walls 3a, 3b, to outlets at the periphery of magnets 1, 2 which may have windings of superconductive material. Walls 3a, 3b are provided with a plurality of concentric closed conductive paths 4 which may be formed either by internally cooled copper tubes or by modules 4a, where the inner and outer rings act as output electrodes. The shape of the paths is preferably circular but other shapes may be used depending on the characteristics of the generator and the equipotential lines required. Between walls 3a, 3b are a plurality of radial walls 5a, 5b which define individual radial flow paths for the working fluid. The radial walls are directed such that a desired potential distribution is obtained and each have electrodes 6 which are connected with the corresponding electrodes on the adjacent walls. The inlet 8 and walls 3a, 3b may define a convergent divergent nozzle and only a single magnet may be used.
Patent GB-1356389-A (GB)
Title: Electrode assemblies
IPC: G01N27/36
Filed: 1970-07-14
Abstract: 1356389 Electro-chemical analysis ELECTRONIC INSTRUMENTS Ltd 14 July 1971 [14 July 1970] 34094/70 Heading G1N A glass electrode has a screened lead 8 connected to the electrode wire 5 which is sealed into a silicone-rubber-plug 6 retaining the electrolyte 4 in the bottom of the tube. The plug 6 fits into a nylon (or polypropylene) sleeve 7 having a further plug 15/16 at the top which may be covered by a plastic or aluminium cap 17.
Patent GB-762501-A (GB)
Title: Photographic developing device
IPC: G03D9/00
Filed: 1953-12-08
Abstract: 762,501. Photographic processing tanks. RUIJS, F. W. Dec. 8, 1953 [Dec. 13, 1952], No: 34140/53. Drawings to Specification. Class 98(2) In a tank for photographic development and. transfer comprising guide plates for introducing the sheets into the processing liquid and two rollers between which the sheets are withdrawn, the rear roller. looking from the direction in which the sheets are introduced is at a higher level than its co-operating roller. An extension of the tank may be arranged beneath the rollers to catch the liquid pressed from the sheets and is so shaped that the liquid runs back into the main tank. The liquid level is maintained constant as described in Specification 762,473. Specification 672,844 also is referred to.
Patent GB-651728-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/18
Filed: 1947-12-24
Abstract: 651,728. Cathode-ray tubes. QUERVAIN, A. DE. Dec. 24, 1947, No. 34184. Convention date, Feb. 14, 1939. [Class 39 (i)] In a hard cathode-ray tube having a fluorescent screen which is liable to deterioration under bombardment by ions generated during operation, the screen is provided on its surface facing the beam with a metallic film, preferably of aluminium, which is of such thickness as to block the ions but allows the electrons to pass through to excite the screen. The fluorescent screen may be deposited on the end wall of the envelope in which case the aluminium can be vaporized on to it; alternatively the thin film can serve as a carrier for the fluorescent material which is deposited thereon. In a specific example of the former arrangement an aluminium layer of 0.056 microns in thickness is produced by evaporation from a filament arranged centrally in the tube at a pressure of 10<SP>-4</SP> mms., and is effective at a beam voltage of 5.5 kilovolts and a maximum beam current of 300 microamperes. The tube is finally evacuated to 10<SP>-6</SP> or 10<SP>-7</SP> mms. and will then operate 4-5 times longer without appreciable ion burn with magnetic focusing and deflection, or still longer than this with electrostatic focusing and magnetic deflection, as compared with a similar tube having no ion trap. The Specification as open to inspection under Sect. 91 refers in addition to cellulose layers and suggests that the layer need not be in contact with the screen. The screen may be a photographic film. This subject-matter does not appear in the Specification as accepted.
Patent GB-1505477-A (GB)
Title: Process for the conversion of the ammonia and hydrogen sulphide contained in coke-oven gases into nitrogen and water and into sulphur respectively
IPC: B01D53/52
Filed: 1976-08-17
Abstract: 1505477 Ammonia and hydrogen sulphide removal CARL STILL 17 Aug 1976 [22 Aug 1975] 34189/76 Heading C1A Ammonia and hydrogen sulphide are removed from raw coke-oven gas by scrubbing the ammonia out with water and the H 2 S out with ammonia water in an ammonia circulation process, the HIS and NH 3  are removed from the scrubbing liquors with steam to yield deacidifying gases containing H 2 S and NH 3 , and the gases are oxidized in two stages with pure oxygen or with gases which have been enriched with oxygen, and passed over an oxidation catalyst to yield sulphur, nitrogen and water, and a part of the gases deriving from the second stage of oxidation are cooled and returned to the circulation, being mixed with the deacidifying gases to be reacted, or with the oxygen.
Patent GB-951036-A (GB)
Title: Improvements relating to fluid pressure power steering mechanisms for motor vehicles
IPC: B62D5/06
Filed: 1962-09-06
Abstract: 951,036. Vehicles' power assisted steering. GENERAL MOTORS CORPORATION. Sept. 6, 1962 [Sept. 13, 1961], No. 34216/62. Heading B7H. A steering linkage booster comprises a servocylinder 44 and a valve housing 42 spaced from one another coaxially and rigidly interconnected by an adaptor member 40 having at least one projecting connecting member 30a, 32a (Fig. 2) for connection to a steering link 30, 32. The open centre valve spool 48 (Fig. 2) is rigidly connected to sleeve 66 which encloses ball end 58 of pitman arm 56, movement of which operates the valve. Feel is provided on relative movement of valve 48 and housing 42 by both spring 92 and the pressure of the fluid displaced from chamber 80 either by shoulder 96 of the valve spool when the spool moves to the right or by the face of combined spring seat and seal 90 which is moved to the left by washer 76 when the spool moves to the left. The pressure in the working chamber 126 or 122 of the servo-cylinder is communicated to chamber 80 through annulus 106 and passage 129.
Patent GB-629175-A (GB)
Title: Fastening arrangement between two members designed to fit into one another
IPC: B65D43/02
Filed: 1946-11-19
Abstract: 629,175. Releasable fastenings. VANDIER, J. Nov. 19, 1946, No 34282. Convention date, Nov. 20, 1945. [Class 44] [Also in Group XVII] A box and its cap lid 63 or two like interfitting elements of plastic material are so dimensioned that the box or the like has a flared mouth 66 with a maximum diameter D1 greater than the internal diameter D2 of the cap skirt 62 so to obtain a tight fit, while still permitting relative pivotal movement, e.g. about the ends 65, of an arcuate shoulder 64, to obtain their separation.
Patent GB-1235969-A (GB)
Title: Analysis instrument
Inventor: BREUER WOLFRAM
IPC: G01N27/406
Filed: 1969-07-08
Abstract: 1,235,969. Electro-chemical analysis cells. FARBENFABRIKEN BAYER A. G. July 8, 1969 [July 8, 1968], No.34381/69. Heading G1N. A cell for electro-chemical determination of hydrogen sulphide in a flowing gas comprises a solid electrolyte 8 made of 50-70 parts by weight of benzoic acid and 50-30 parts of propylene carbonate, electrodes 1, 2 being connected to an external measuring circuit having a resistance of less than 10 kilohm. Both electrodes may be made of silver.
Patent GB-902644-A (GB)
Title: Improvements in boilers
Inventor: SMITH WILLIAM HERBERT
IPC: F23M20/00
Filed: 1957-11-04
Abstract: 902,644. Hot water boilers. TRIANCO Ltd. Oct. 24, 1958 [Nov. 4, 1957], No. 34390/57. Class 64 (1). [Also in Group XII] A boiler 6 is heated by flue tubes 7 provided with spiral baffles 8 and leading to a flue box 17 with an upwardly and rearwardly sloping roof from a combustion chamber with a burner 4 mounted in the front wall, which projects forwardly of the front of the heat-exchange unit. The sloping front wall part and the combustion chamber has a water jacket 12, 9, which is connected to the boiler 6 by manifolds 10. The boiler may be fired by solid fuel, the front wall panel carrying the burner being replaced by a wall panel carrying a firing door and an ashpit door, the refractory lining of the combustion chamber being removed and a grate installed. To increase the draught with solid fuel, the baffles 8 may be removed.
Patent GB-1109628-A (GB)
Title: Improvements relating to difficultly soluble azo dyestuffs which can be dispersed in water, and their use
IPC: C09B29/00
Filed: 1966-08-01
Abstract: The invention comprises mono and disazo dyes of the general formula <FORM:1109628/C4-C5/1> wherein A is a carbocyclic or heterocyclic aryl radical which may contain nonic substituents, including a phenyl azo group; one of R1, R2 and R3 represents an unsubstituted or non-ionically substituted phenyl radical and each other R is hydrogen or an unsubstituted or non-ionically substituted alkyl, cycloalkyl or phenalkyl group.  Preferably, A is a phenyl radical substituted in the o- and/or p-positions to the azo group; a benzthiazolyl (2) radical which may be substituted or a 4-phenylazophenyl radical which may be substituted, preferably by an alkyl group.  Other values of A specified include naphthalene, thiazole, indazole, pyrazole, quinoline, thiodiazole, thiophene and triazole radicals which may be substituted. Conventional diazotization and coupling methods are used and coupling may take place in presence of a wetting agent, e.g. cetyl and oleyl polyglycol ether .  The dyes obtained give yellow, orange, red, scarlet and redbrown shades on synthetic fibres using disperse dyeing methods.ALSO:2,4,6-Triamino pyrimidines wherein one amino group is substituted by a phenyl group which may contain a m-chlorine atom or a p-methyl group and the other two amino groups may be substituted by methyl or ethyl groups are prepared by reacting an appropriate phenylamino dichloropyrimidine compound with aqueous ammonia or an amine at 140-160 DEG  C.  The preparation of the following compounds is described: 2,6 - bisamino - 4 - phenylamino - pyrimidine; 2,6 - bismethylamino - 4 - phenylamino - pyrimidine; 2,6 - bis - ethylamino - (41-methylphenylamino - pyrimidine; 4,6 - bisethylamino - 2(41-methylphenylamino) - pyrimidine and an isomeric mixture of 4,6-bisethylamino - 2 - phenylamino - pyrimidine and 2,6-bisethylamino - 4 - phenylamino - pyrimidine. The products are dyestuff intermediates (cf. Divisions C4-C5).  A number of further 2,4,6-triaminopyrimidines are specified.
Patent GB-341183-A (GB)
Title: Improvements in or relating to photographic reversal processes
Filed: 1929-11-13
Abstract: 341,183. Photographic reversal processes. KODAK, Ltd., Kingsway, London, and JELLEY, E. E., Kodak Works, Wealdstone, Middlesex. Nov. 13, 1929, No. 34612. [Class 98 (ii).] In a silver reversal process of the kind in which no re-exposure to light is made after the first development, the plate, film, or paper, after treatment in the reversing-bath, is treated simultaneously or in succession with (1) a known darkening or fogging agent of such a nature and strength that it forms developable nuclei on the silver halide grains, and (2) an ordinary developer, whereby the reversed image may be developed to any desired density. Sodium hydrosulphite, hydrazine, hydrogen peroxide, and methylene blue are instanced as nucleusforming agents, hydrazine being used with a developer containing an aldehyde or ketone. Examples are described wherein the two developments and the reversal are effected respectively with a caustic hydroquinone developer, and with a bath of bichromate and sulphuric acid. Reference is made to a reversal process wherein the imagelayer, after treatment in the reversing-bath, is darkened by sodium sulphide or a compound of formaldehyde and sodium hydrosulphite without re-exposure to light.
Patent GB-989834-A (GB)
Title: Improvements in or relating to expansion plugs or bolts
IPC: F16B13/08
Filed: 1963-09-03
Abstract: 989,834. Wall-plugs. KONSOLEN-HANDELS G.m.b.H. Sept. 3, 1963 [Sept. 10, 1962], No. 34712/63. Heading F2H. A screw and wall-plug combination comprises a screw (not shown), together with a nut 1, Fig. 3, and a sleeve 2, Fig. 4, having interdigitating teeth 1a, 1b, 1c and 2a, 2b with bevelled ends 5 opposed to complementarilybevelled webs 6 between the opposing teeth. When the screw is tightened and the nut moves from the screw end towards the sleeve 2 and screw head, the bevelled portions 5, 6 start the teeth bowing out towards and into the wall of the hole and this is completed by the inner surfaces 9 of the teeth riding on the webs 6.
Patent GB-397353-A (GB)
Title: An improved electro-mechanical acoustical direction finder
IPC: G01S1/72
Filed: 1932-12-09
Abstract: 397,353. Acoustic directional apparatus ; electric signalling systems. HEINRICH, P., 1, Gustav Falkestrasse, Flottbeck, Altona, Germany. Dec. 9, 1932, No. 34967. Convention date, Dec. 12, 1931. [Classes 40 (i) and 118 (ii).] An acoustic direction-finder comprises two receivers at the ends of a base line, a device for measuring, by the emission of a number of electrical impulses, the time interval between the arrival of the same sound at the two receivers and hence the direction of the source with respect to the base line, means for indicating and/or recording the number of these impulses and means, for indicating on which side (port or starboard) of the base the sound source is situated. The receivers M1, M2 are connected to relays Sl, S2 which normally close contacts 3, 4. The switch 25 is momentarily closed to energize coils S3, S4 of relays A, B, holding circuits for these relays then being established from a battery 10 through contact 3, holding coil MS1 and contact 7a, and through contact 4 holding coil MS2 and contact 8a respectively. At the same time a white lamp L1 is lit from, the battery 10 through contacts 7a and 28. If sound reaches the receiver M1, the contact 3 is opened, thus breaking the circuit of the holding coil MS1 and causing the opening of contacts 7a, 13 and the closing of contacts 9, 15. Current is then supplied through the contacts 9 to a relay coil S5 the armature 32 of which breaks the circuit of the white lamp L1 and causes the lighting of a red lamp L2 to indicate that the sound source is on the port side of the base line. The closing of contacts 15 completes a circuit from a battery through contacts 16 and points 12, 11 to an arm 19 rotating at constant speed. This arm carries a brush sweeping over contacts 33 connected to relay coils 26 controlling either the lighting of lamps E or the movement of pivoted flaps. When the sound wave reaches the receiver M2, the contact 4 is opened, thus releasing the armature of the relay B. The contacts 16 are thereby opened to stop the supply of current to the arm 19. The number of lamps E lit during the interval between the arrival of the sound at the two receivers indicates the direction of the sound source, these lamps remaining illuminated until extinguished by opening a switch 39: This number may also be recorded electrochemically by a series of contacts W corresponding to the relays 26, the points x marked on the sensitized paper being afterwards counted with the help of a scale 48.
Patent GB-1312993-A (GB)
Title: Duplex filtering device
IPC: B01D35/12
Filed: 1970-07-20
Abstract: 1312993 Duplex filter PARKER-HANNIFIN CORP 20 July 1970 [22 Aug 1969] 35001/ 70 Heading BID [Also in Division F2]  In a filter comprising two filter chambers 16, 18 and a valve assembly 12 which connects either chamber with an inlet (42) and an outlet (44) (Fig. 2, not shown) while disconnecting the other chamber to allow its filter element 54 to be replaced, the assembly 12 comprises inlet valve 112 and outlet valve 114 bearing respectively on annular seats 118, 136 in a central partition 20, the valve 112 being turned directly by a handle 130 secured to tubular extension 124 of the valve, and valve 114 being connected to move with valve 112 by a shaft 152 connected to the respective valves by universal links 170, 172. This ensures that the valves move together but avoids the need for very accurate alignment of their respective seats. The inlet (42) and outlet (44) open into the bore 120 above and below the central part of shaft 152. Before turning the valve assembly from one position to the other, a pilot valve 188 is raised manually from its seat 184 to connect the upstream parts of the filter chambers and eliminate the differential pressure which would otherwise tend to jam valves 112 and 114 onto their seats. Each chamber has a pressure-operated by-pass valve 78, whose opening is indicated externally by device 76, and a removable cover 68 and drain plug 48.
Patent GB-1060422-A (GB)
Title: Method of forming rotor blades
IPC: B29C70/86
Filed: 1964-02-11
Abstract: 1,060,422. Moulding rotor blades. BOEING CO. Feb. 11, 1964 [Feb. 11, 1963], No. 35191/66. Divided out of 1,060,421. Heading B5A. A method of forming a structure having an aerofoil contour between root and tip ends, e.g. a helicopter rotor blade, includes the steps of placing a leading edge assembly 14 within a cavity in a mould (80) (Figs. 16-19, not shown), forming a skin section (15) by placing plies of mouldable reinforced material within the mould cavity to provide a front portion (38) behind the leading edge assembly and opposed spaced rear portions (39) extending along opposite walls of the mould cavity, positioning a spar assembly (44) in the mould and against the front portion of the skin section and filling substantially the remainder of the skin section and the spar assembly with lightweight material (18).
Patent GB-343513-A (GB)
Title: Improvements in and relating to rotary kilns
IPC: F27B7/20
Filed: 1929-11-18
Abstract: 343,513. Rotary kilns. JORGENSEN, M. VOGEL-, 33, Vestergade, Copenhagen. Nov. 18, 1929, No. 35233. Convention date, Oct. 26. [Class 51 (ii).] The material under treatment in a rotary kiln for burning cement lime ores &c. is caused to move outwards from the kiln through openings in the wall, and subsequently to pass back through the same openings and to be showered down through the heating gases. In the construction shown in Fig. 2 pockets 4 mounted on the outside of the kiln shell are in communication with the interior through slots 5 preferably inclined to the axis of the kiln. In the modified construction shown in Fig. 3 pockets 7, through which heating-gases are exhausted, alternate with the pockets 4 for receiving the material. Dampers are provided for shutting off the pockets 7 from the interior of the kiln, except when they are in such position that heating-gases will be drawn into them through material being showered from an adjacent higher pocket 4. The pockets are fitted in the calcining and preheating zones.
Patent GB-301801-A (GB)
Title: Improvements in or relating to rotary valves for internal combustion engines
IPC: F01L7/06
Filed: 1928-11-30
Abstract: 301,801. Nourry, P., and Rodanski, D. Gluksman-. Dec. 5, 1927, [Convention date]. Valves.-A rotary valve controlling inlet and exhaust comprises a pair of valve discs e keyed to the ends of an overhead shaft d and arranged so that the fluid pressures are balanced. Passages c<0> in the valve discs connect inlet ports c‹ to a pair of opposed cylinder ports a‹, and passages e‹‹ connect the cylinder ports to exhaust ports c<oo>. The valve discs work against seating-plates e<1> held from rotation by engaging over bosses; C<2>, and from axial movement bv screwed rings e<3>. The shaft d is arranged across the cylinder head between a pair of cylinders, so that the valve serves both cylinders. The inlet ports c‹ may be connected by a conduit through the shaft d. In a modification, Fig. 3, a valve e provided over the centre of each cylinder is formed with a hollow shaft constituting the inlet conduit, which is connected by a passage e‹ in the valve with a pair of opposed cylinder ports f‹, the valve being also provided with a recess which connects the cylinder ports to exhaust conduits f‹‹. Filling-pieces f are arranged between the valves e and are formed with the upper parts of the cylinder passages f ‹. Valve gear.-A pair of valves of the form shown in Fig. 2 are driven by teeth e<4> on the periphery engaging a worm on a vertical shaft between the two valves. The hollow shafts of the valves shown in Fig. 3 are coupled together by members es..
Patent GB-448462-A (GB)
Title: Improvements relating to the ventilation of vehicles
IPC: B61D27/00
Filed: 1934-12-08
Abstract: 448,462. Ventilating vehicles. STONE & CO., Ltd., J., Deptford, London, and MORRIS, N. H., The Tile House, Worplesdon Hill, Surrey. Dec. 8, 1934, No. 35339. [Class 137] Air, which may be conditioned, is fed from downtakes 9 to a trunk 7 extending below the floor 3 of a railway carriage, ducts 19 leading from the trunk to hollow pedestals on which the seats 1 are mounted, and which have openings 10 in their side walls for delivery of the air to the interior. In one construction, Fig. 7, the pedestal forms a duct which is bounded by a rearwardly swept partition 24 and which delivers the air through nozzles 27 which direct the air downwardlv. In a modification, adjustable means may be provided in the pedestals for controlling the effective air passage.
Patent GB-522110-A (GB)
Title: Improved method of and apparatus for treating more or less finely divided material, in particular, flour-mill stocks such as the semolinas
IPC: B02B1/04
Filed: 1938-12-05
Abstract: 522,110. Conditioning flour stock. LORING F. H. Dec. 5, 1938, No. 35377. [Class, 58] [Also in Group II] To ensure semolinas or like more or less finely divided material being uniformly moistened by a centrifugal spraying basket machine as described in Specifications 444,833, and 476,828, [both in Group II], means are provided for separating off the inner wetted layer of material surrounding the basket from the outer layer, the outer layer then being subjected to further treatment. In the machine shown the material is fed into pockets in a rotating drum 1 and carried upwards by the rotation of the drum to a position where the material flows from the pockets down shoot, 2 into a hopper 3 having a mouthpiece 4 surrounding a cone, disc or worm 6 round a hollow shaft 5 feeding the spraying basket 7. The material falls in an annular curtain around the basket and the outer untreated layer of this curtain is separated from the inner layer that has been treated by the spray by a sharp edged circular hopper 8. The outer layer of material flows down a shoot 10 and is again fed into the pockets of the drum 1 for further treatment. Differing sizes of hoppers may be used to vary the diameter of the falling curtain of material and also to adjust the thickness of the layer separated off. Water or other liquid may be used as the spraying material.