baber/WOPTO huggingface dataset:
Patent GB-802103-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J9/42
Filed: 1955-06-24
Abstract: 802,103. X-ray dose indicators. PHILIPS ELECTRICAL INDUSTRIES,Ltd June 24, 1955 [June 28, 1954], No. 18336/55. Class 98(1) [Also in Group XL(a)] A hard cathode ray tube for use with high voltage, e.g. 5 kv or more, has a separate irradiation life indicator sensitive to soft X-rays produced during operation of the tube by the electron beam striking the target, e.g. a fluorescent screen, the life indicator darkening with increase in irradiation life and thereby indicating the remaining irradiation life of the tube. "Separate" means in addition to the tube envelope and normal internal and external tube parts. The indicator may be inside or outside the tube, e.g. on the glass cone wall. It may be a photographic film strip wrapped in black paper and fixed to the outside of the cone along a generatrix thereof. If it is outside the tube wall at least one article absorbing X-rays such as metal ring(s), disc(s) or plate(s) may be provided between the cone wall and film strip to assist in estimating the degree of blackening of the strip by contrast with the shielded area or areas, or a strip having notches or punched numerals may be used as a shield. I the cone is of metal the X-ray indicator may be inside the tube. A prior art gas discharge tube having on or in the envelope a material or strip which gradually changes colour due to heating during operation is referred to.
Patent GB-203459-A (GB)
Title: Improvements in surveying instruments
IPC: F16M13/02
Filed: 1922-07-05
Abstract: 203,459. Tallack, H. T. July 5, 1922. Levelling-heads.-To facilitate the levelling of a surveying-instrument, the correct positioning of the main bubble tube in two directions at rightangles and in definite relation to the levelling screws is ensured by providing the outer centre with a circular member D graduated in definite relation to the positions of the arms C carrying the levelling screws, and providing the revolving body A with an index or indices E disposed in definite relation to the direction of the main bubble tube and adapted to be brought to register with the graduations. Alternatively, the graduations may be carried by the body and the index or indices by the outer centre.
Patent GB-715955-A (GB)
Title: Creels for supporting bobbins and the like of yarn
IPC: D02H1/00
Filed: 1951-08-04
Abstract: 715,955. Creel frames. BADDELEY, C. H. Oct. 28, 1952 [Aug. 4, 1951], No. 18507/51. Classes 120(2), 142(1) and 142(2), Bobbin spindles are mounted in horizontal bars 4, each alternate bar having bores 7 engaging one end of each spindle and the intervening bars having slots 8 engaging the other ends of the spindles. The bars 4 are adjustable along the supporting rods 3 by screwed split sleeves 5 and locking nuts 6. Several tiers of bobbins may be so mounted. The yarns may be delivered to a loom, or to beaming, warping, cording or twisting machinery.
Patent GB-653116-A (GB)
Title: Improvements relating to voltage selector circuits
IPC: H03M1/00
Filed: 1948-07-09
Abstract: 653,116. Combinations of resistances. SCOLES, G. J., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 9, 1948, No. 18540. [Class 37] [Also in Group XIX] Means for selecting a voltage in coarse and fine steps comprises a plurality of potential dividing circuits adapted for connection across a range of potentials and of graduated ratio so as to cover different ranges, the output tappings of the dividing circuits being voltage additive. The invention has application in calculating apparatus where a voltage is required commensurate with a multi-digit number set up on a keyboard or by selector switches. In a decimal system, the resistances R1, R2 and R3 are in the ratio 1: 10 : 100 and are large relative to R4. The resistance R is divided into 10 equal parts and has a constant voltage applied across it. Voltages representative of the numbers 0-9 are developed at 0 by applying R3 to the appropriate tappings of R. Similarly, digits 0-9 in the tens and hundreds orders are set up by adjusting the tappings of R2 and R1 on R, whilst a voltage representative of a 3- digit number is developed at O by applying the resistances R1, R2 and R3 simultaneously to appropriate tappings on R. The tappings on R may be continuously variable. Negative feed-back may be employed to render R4 effectively of the required low value.
Patent GB-738890-A (GB)
Title: Improvements in or relating to radio direction finding apparatus
Inventor: EDGAR ANTHONY KENNEDY
IPC: H01Q25/02
Filed: 1949-07-13
Abstract: 738,890. Directive radio systems. MINISTER OF SUPPLY. July 13, 1950 [July 13, 1949], No. 18551/49. Class 40 (7). In an aerial system comprising two separate aerial elements the latter are adapted to feed a magic-T or equivalent device to produce outputs which are the sum and difference of the element outputs. As shown, the aerials A, B, which are omnidirectional in azimuth, are separated by a half-wave length and respectively connected to the points C, D of the cable network C,D,E,F. The arms CE, CF, ED produce a 90-degree phase shift and arm FD one of 270 degrees. The outputs at F and E are respectively the sum and difference of the voltages supplied by A and B and have polar diagrams of the " figure-eight " form. In a second embodiment, not shown, the aerials are separated by a quarter-wavelength and feed a magic-T rectangular wave-guide through feeders which yield outputs differing in phase by 90 degrees. In this case the polar diagrams obtained are cardioids.
Patent GB-112167-A (GB)
Title: Improvements in Mariners' Compasses.
Inventor: OLAN JOHAN WILHELM THEODOR
IPC: G01C17/00
Filed: 1916-12-28
Abstract: 112,167. Olan, J. W. T. Dec. 28, 1916. Magnetic compasses. - The needles of a mariner's compass are inclined to the load line, and arranged in one or more groups eccentrically placed with respect to the axis of the card, the groups being divided into sub-groups and the needles of each sub-group crossing those of the other sub-group in the form of an X. The needles may be placed so that the north poles of all the needles in one group are situated on the same side of all the south poles of the needles of that group. Fig. 1 shows such an arrangement in which the centres of the needles c, c' of each subgroup are spaced in an inclined direction, the needles being carried by a cross-piece b secured to the spindle a of the card in the manner described in Specification 108,877. The centres may alternatively be spaced vertically, and the needles may be secured to a vertical support carried by the cross-piece b.
Patent GB-1187057-A (GB)
Title: Improvements in or relating to Centrifugal Separators.
Inventor: CUCCOLINI SILIA
IPC: B04B1/18
Filed: 1967-04-21
Abstract: 1,187,057. Centrifugal separators. S. CUCCOLINI. 21 April, 1967 [21 April, 1966], No. 18578/67. Heading B2P. In a centrifuge for treating a mixture of solids and liquid or a mixture of liquids of different specific gravities, the rotor 1 has openings 10 which are normally closed by a slide valve 7 acted upon by centrifugal pressure generated in a liquid, e.g. oil, in a chamber 5 rotating with the rotor, and which are opened for the discharge of a component by introducing compressed air in a chamber 11 to overcome the closing action of the liquid, the liquid in the chamber 5 being prevented by a sealing ring 16 from entering the air chamber and, by the chamber 5 being mounted below the air chamber 11, from coming into contact with the mixture being treated and with the component discharging from the openings 10. The liquid may be introduced into the chamber 5, while the rotor is rotating or at rest, by means of a syringe via a pipe 17, a chamber 18 and passages 19. Any liquid leaking from the chamber 5 past a sealing ring 6 is collected in a chamber 20. A screwed stopper 23 permits the level of the liquid in the chamber 5 to be adjusted. The compressed air is introduced into the chamber 11 through a bore in the rotor shaft 2 and through one or more passages 12. '
Patent GB-277465-A (GB)
Title: Highway attachment for railway car wheels
IPC: B60F1/02
Filed: 1926-07-26
Abstract: 277,465. Thomson, S. G. July 26, 1926. Road-and-rail wheels.-A road-wheel is detachably secured to a flanged rail-wheel by clamping- means arranged inwardly of the rims, the roadwheel bearing against the outer non-wearing portion of the rail-wheel and clear of its tread portion. In its simplest form, the road-wheel consists of a tee-section disc clamped by a central nut on a threaded extension of the rail-wheel hub. The road-wheel H may bear directly against the outer corner of the rail-wheel rim or, as shown in Fig. 3<a>, against a series of brackets 1<a> riveted to the rail-wheel C. In the modification shown in Fig. 4, the road wheel H bears also against a series of bolts 16 and is secured by a plate 17 which is keyed to the rail-wheel hub and locked by a nut 21 having a spring- pressed pin 19 engaging a hole 18 in the plate 17. The road wheel mav be screwed directly on to an extension of the rail-wheel hub and locked by a back-nut and pin; or the road wheel may be keyed to the rail-wheel hub and secured by a clamping-plate having a locking-pawl co-operating with a ratchet on the back nut. Fig. 11 shows a further arrangement in which the roadwheel is keyed to the extension 46 of the railwheel hub and secured by a coned plate 48 and collar 50. The latter has a sliding fit on the squared end of the part 46 and is internally threaded to engage a bolt 53 secured to the part 46. In Fig. 15, the boss 64 of the road-wheel is screwed on to a collar 66 having an internal thread of opposite hand to engage the threaded extension 68 of the rail-wheel. The road-wheel may be secured by a bolt threaded into the railwheel hub. Fig. 17 shows such a bolt having opposite threads 83, 84 to engage respectively a clamping-collar 79 and the extension 80 of the rail-wheel hub. In further modifications, a band of rubber or other material is fitted between the rims of the road and rail-wheels.
Patent GB-357222-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: G08C15/02
Filed: 1930-06-18
Abstract: 357,222. Electric signalling systems. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, Liverpool, and RAYNER, T. R., 2, Stretton Avenue, Wallasey, Cheshire. June 18, 1930, No. 18613. [Class 40 (i).] A rotatablymounted coil 10 adapted to be moved in accordance with the position of the indicator of a measuring instrument, is located in the field set up by a plurality of coils, for example, two coils 11, 12 arranged to produce alternating currents of the same frequency but different phase, the coil 10 being connected to a freely-mounted coil 13 located in a similar alternating field, so that the coil 13 follows the movement of the coil 10. The coil 13 carries a pointer movable over a scale calibrated similarly to that of the measuring instrument at the sending station. The connection of the coil 13 to the coil 10 may be by way of sending amplifier SA, which may be a thermionic valve amplifier circuit, to a similar receiving amplifier circuit RA. The line circuit may include repeater stations. A continuous indication from a number of measuring instruments may be obtained simultaneously over a single circuit, by the employment of different frequencies for each indication required, filter circuits being employed to separate out these frequencies. The field coils at the receiving station may be adjustable to compensate for phase displacement of the line current when repeaters are used in the circuit.
Patent GB-134931-A (GB)
Title: Improved Control Mechanism for Regulating the Supply of Fuel and of Air to the Carburettor of an Internal Combustion Engine.
Inventor: WEBB PERCY RICHARD
IPC: F02D11/02
Filed: 1918-11-13
Abstract: 134,931. Webb, P. R. Nov. 13, 1918. Control mechanism.-The admission of air and fuel to a carburettor of a motor-cycle are controlled simultaneously or independently by a single lever. A plate 8 is secured by hooked bolts 4 and nuts 5 to the handle-bar 1 and carries a bolt 9, which forms a pivot for an angle-plate 12. The vertical limb of the angle-plate has secured to it by rivets a, b a pulley 16a, and the horizontal limb contains a pulley 13 which can be rotated about a bolt 11 by a lever 14. Bowden or like cables 15, 16 pass to the air and fued regulators. Moving the lever 14 in the horizontal plane actuates the cable 15, and by depressing the lever the angle-plate is tilted and the cable 16 actuated. The lever may be hinged and provided with a sleeve to keep it rigid when required. The pulleys may be mounted eccentrically or may be of cam shape or may be replaced by bell-crank levers. The limbs of the angle-plate may also be mounted ecentrically and are not necessarily at right-angles to one another.
Patent GB-692004-A (GB)
Title: Soluble esters of yellow triazine vat dyes
IPC: C09B9/02
Filed: 1951-08-08
Abstract: The invention comprises sulphuric esters of leuco vat dyes of the formula <FORM:0692004/IV (c)/1> in which M is a cation, n is 0 or 1, X is H or Cl, and Ar is an aryl radical, said sulphuric esters being characterized by an atomic ratio of sulphur to nitrogen of at least 0.7.  They are made by reacting the vat dye with sufficient iron and sulphur trioxide addition product of a -picoline (made from chlorsulphonic acid and several times its own weight of a -picoline) to reduce the four quinone groups and supply four equivalents of sulphur trioxide.  In examples. a mixture of chlorsulphonic acid with several times its own weight of a -picoline is reacted with iron powder and the dyes corresponding to the above leuco-sulphuric esters wherein (1) n is 1, X is H, and Ar is phenyl or tolyl; (2) n is O, X is H, and Ar is o-hydroxyphenyl, o-chlorophenyl, or b -naphthyl; (3) n is O, X is Cl, and Ar is o-hydroxyphenyl or o-methoxyphenyl.  Other values of Ar referred to are m-chlorphenyl, p-phenylphenyl, p-ethylphenyl, p-bromophenyl, a -naphthyl.  Specification 691,507 is referred to.
Patent GB-237900-A (GB)
IPC: C08K5/523
Filed: 1925-07-22
Abstract: 237,900. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres. Aug. 4, 1924, [Convention date]. Plastic compositions containing cellulose acetate.-A mixture of triphenyl phosphate and tricresylphosphate is used as a plasticizing and fireproofing agent for acetyl cellulose, particularly in the manufacture of photographic films. The Specification as open to inspection under Sect. 91 (3) (a) states that the tricresyl phosphate may be replaced by other gelatinizing agents such as " certain ethers of glycerine, e..g. the dicresyline," or certain chlorinated derivatives such as dichlorhydrins. This subjectmatter does not appear in the Specification as accepted.
Patent GB-381549-A (GB)
Title: Improved variable speed gear
IPC: F16D67/00
Filed: 1931-06-29
Abstract: 381,549. Hydro-mechanical variablespeed gearing. STOCK, R. T., 23, Mount Road, Hendon, London. June 29, 1931, No. 18731. [Class 80 (ii).] Variable-speed gearing automatically variable with the load comprises an epicyclic train in which the reaction element carries vanes engaged by liquid projected in a direction opposed to that in which the reaction element is moved by the combined action of the engine and the load reaction. This projection may be effected by a jet, or by inclined vanes on a rotating or fixed primary member. In an arrangement shown in Fig. 2, a spider 20 carrying planet gears 22 is fast on a driving- shaft of which an extension 27 is shown. The gears 22 mesh with a sun gear 23 fast on a driven shaft 13, and with an annulus 30 forming the reaction element. The annulus 30 carries vanes or cups 34 engaged by a jet of liquid projected from a fixed nozzle 36 with an adjustable valve 38, the jet opposing the natural anticlockwise rotation of the annulus. The liquid may be supplied from any source such as a pump driven by the engine. A form shown in Fig. 4 has an arresting device for the epicyclic reaction element 93 constructed like a hydraulic coupling. Specification 1163/77, [Class 103, Railway &c. vehicles], being referred to. A spider 83 carrying the planets 81 is fast on the driving-shaft 53, and the sun gear 80 is fast on the driven shaft 70. The reaction element 93 carries inclined vanes 96, Fig. 8, and tends to turn in the direction of arrow d in the vicinity of inclined vanes 96<1> upon a primary vane member 90, both vane members being submerged in oil. In the arrangement of Fig. 4, the primary vane member 90 is constantly driven from the engine shaft 53 by a fixed gear train 56, 57, 91. The projection of the oil is explained with reference to Figs. 7 and 8, in which the primary member 90 is regarded as being fixed. Oil in the cups 100 of the rotating member 93 is projected centrifugally outwards in the direction of arrow a, Fig. 7, and is compelled to travel inwards in the fixed cups 101 in the direction of arrow b. The liquid is therefore projected towards the reaction member 93 in the direction of arrow c and that is opposed to the advance of the member 93 as indicated by the arrow d.
Patent GB-655505-A (GB)
Title: Improvements in or connected with washers or separators for coal and other minerals
IPC: B03B5/62
Filed: 1948-07-13
Abstract: 655,505. Washing granular materials: centrifugal separators. ROBEY & CO., Ltd., BAYRAKTAR, T. C., and CROMPTON, A. July 13, 1948, Nos. 18774/48 and 13232/49. [Classes 23 and 82(ii)] An apparatus for washing or separating -coal and other minerals from shale and other impurities, comprises a container or tank of conical, parabolic or hyperbolic contour on the inside, an inner structure of the same shape on the outside spaced from the container or tank to form an annular space, means for feeding the material to be washed or separated into the annular space, and means for admitting a supply of water under pressure, with or without air, to the annular space so as to produce a controlled ascending spiral current in the space, the lighter material rising to and being conveyed away from the top of the container or tank and the heavier material sinking to and being conveyed away from the bottom thereof. Material to be separated is fed to a central hopper 3 whence it is distributed through ducts 4 to the annular space between the container 1 and inner structure 2: the ducts 4 may be vertically adjustable. Water under pressure is introduced through spirally arranged controllable jets 5 so arranged that the flow is tangential to the inner surface of the container and having a progressively decreasing vertical inclina- - tion: the jets may be circular or rectan- _gular in cross-section. Compressed air may be introduced through similar jets. Floats are discharged at 9 and sinks pass through the valve 10 to the chamber 11. A single chamber 11 may be common to several units. The inner surface of the container 1 may be rubber-lined. Middlings may be removed at intermediate levels. Alternative feeds comprise, in place of the hopper 3 and ducts 4, a flat circular or tapered cylindrical table revolving with approximately the same speed and in the same ,direction as the water in the container 1; or a curved inclined chute or trough.
Patent GB-798348-A (GB)
Title: Improvements in or relating to speed-responsive electric switches
Inventor: GAYLORD JAMES KANE
IPC: H01H35/10
Filed: 1956-06-18
Abstract: 798,348. Speed indicators. GAYLORD PRODUCTS, Inc. June 18, 1956, No. 18779/56. Class 106 (3). [Also in Group XXXVII] In a switch similar to that of Specification 794,297, the driving plates 11, 14 have hub portions 12, 15 and flange portions 13, 16 between which the driven plate 18 is located. The plate 18 is coupled to the plates 11, 14 by a plastic material 21 and has a flange 20 engaged by projections 35, 36 on a lever 33 pivoted at 34 and biased counter-clockwise by a lever 32 acted on by the spring of a snap-action switch 27. The plate 18 is thus moved to an eccentric position when stationary but reaches a concentric position to operate the switch when the desired speed is attained. In a modification (Fig. 4, not shown) the lever 32 is omitted and the lever 33 is pivoted on the switch frame 25 and is acted on directly by the switch spring.
Patent GB-970678-A (GB)
Title: Improvements in and relating to one-way valves for use in bottles
Inventor: BALDWIN DONALD STUART
IPC: B65D49/06
Filed: 1962-05-16
Abstract: 970,678. Valves. DANIEL MONTGOMERY & SON Ltd. July 30, 1963 [May 16, 1962], No. 18897/62. Heading F2V. [Also in Division B8] A one-way fluid valve 10 for use in non- refillable bottles comprises a tubular housing 11 having a valve chamber 15, a valve seat 12, and a jumper 13 movable under gravity, the valve seat 12 being a force-fit in the housing thereby expanding the housing wall outwardly at 25. The valve is made of resilient plastics and is forced into the tubular neck of a bottle until the expanded portion 25 passes an internal protuberance in the neck, thus preventing withdrawal of the valve. In this position a guard portion 18 is flush with the top of the bottle neck so that any conventional closure may be fitted. The valve seat 12 has an annular wall with a circumferential rib 22 engaging a groove in the housing, and a diametrical cross-piece 23 formed with a hole 24 in which slides the pin 29 of the jumper 13. Under the weight of a glass sphere 14 the head 26 of the jumper seats in a surface 27 to seal D-shaped flow passages 28 in the valve seat and prevent the entry of fluid into the bottle. When the bottle is tipped the glass sphere falls away from the surface. 30 and the weight of liquid carries the jumper into the chamber 15 opening the flow passages 28 and allowing liquid to flow through the chamber and out of the bottle. In a modified form of valve seat, Fig. 7 (not shown), the cross-piece 23 is S-shaped to provide greater resilience.
Patent GB-241328-A (GB)
Title: Demountable rim and fastening means
IPC: B60B23/04
Filed: 1924-08-08
Abstract: 241,328. Wagenhorst, J. H. Aug. 8, 1924. Detachable-rim attachments to wheels; tyre attachments to rims. - A detachable rim A is clamped against the offset flange B<2> of the fixed rim B by bolts C and coned nuts D engaging clamps E riveted to the rim A. The latter is formed with a rib A<1> adapted to be adjacent to, but out of contact with, the edge B<4> of the outer flange B<3> of the fixed rim when the parts are assembled, as shown in Fig. 4. The rim A may be transversely-split, and, as 'shown in Fig. 5, the joint 119 may be bridged by a plate 118 riveted to one end of the rim and apertured to receive a stud 123 on the other end of the rim. The plate 118 is formed with a flange 120 adapted to fit over one of the bolts C. Specifications 182,152 and 102,215 are referred to.