baber/WOPTO huggingface dataset:
Patent GB-493217-A (GB)
Title: Electron multipliers
IPC: H01J43/04
Filed: 1937-05-21
Abstract: 493,217. Electron multipliers and circuits therefor. STANDARD TELEPHONES & CABLES, Ltd. May 21, 1937, No. 14180. Convention date, July 31, 1936. [Classes 39 (i) and 40 (v)] A circuit comprises two multiplier structures with their input and output electrodes connected in push-pull, the structures being in a single envelope. In one form, electrons from two filaments pass control grids and enter, through apertures in a positively biassed screen, two multipliers of the crossed electric and magnetic fields type. The secondary cathodes are opposite surfaces of a series of single plates. Two series of horse-shoe magnets, straddling the tube, are provided. In a modification, Fig. 2, the controlled streams enter through apertures 30 the space between secondary cathodes 38, 39 between which they are oscillated, finally reaching output electrodes 41, 42. A magnetic focusing field may be employed. In either form the two streams may be set up by push-pull deflection control of a single primary stream. The stabilizing arrangements described in Specification 491,773 may be employed. The Specification as open to inspection under Sect. 91 states that the two multiplier devices may be in separate envelopes. This subject-matter does not appear in the Specification as accepted.
Patent GB-528667-A (GB)
Title: Improvements in and relating to vehicle bodies
IPC: B62D29/04
Filed: 1939-05-12
Abstract: 528,667. Compound sheet materials. PORSCHE, F. May 12, 1939, No. 14201. Convention date, May 14, 1938. [Class 140] [Also in Group XXXII] In forming automobile or other vehicle bodies of laminated materials consisting of paper or fabric and phenolaldehyde or ureaaldehyde resins or compositions having a cellulose base, the edges of the roof or other part are split into two parts 5, 7 and the side wall 8 is secured between them. The Specification as open to inspection under Sect. 91 describes also that strengthening ribs may be formed in the laminated material by forming folds in the upper layers before they are attached to the straight lower layers. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 432,699, [Group XXXII].
Patent GB-382239-A (GB)
Title: Improvements in multi-color photography
IPC: G02B27/14
Filed: 1932-05-19
Abstract: 382,239. Colour photography. TECHNICOLOR MOTION PICTURE CORPORATION, 110; Brookline Avenue, Boston, U.S.A.-(Assignees of Ball, J. A. ; 823, North Seward Street, Hollyvood, U.S.A.) May 19, 1932, No. 14267. Convention date, May 27, 1931. Addition to 373,429. [Classes 97 (i) and 98 (ii).] In the arrangement described in the parent Specification, a minus green filter is arranged in front of the bipack recording the blue and red colour aspects, both to obviate fogging by light reflected from the films in each aperture and also to ensure precise separation of the red aspect irrespective of variations in the red filter layer. As shown, the green and minus green filters G, MG, are applied to the prism faces 23, 21. To shield the two apertures from light reflected from the prism faces, the corners are cut away and blackened as at 24, 25 and 26, 27 ; alternatively the adjacent parts of faces 21, 23 are blackened or the margins of the mirror plane M are rendered opaque. The objective O is designed to have maximum chromatic correction and minimum focal length in the green and equal corrections for blue and red.
Patent GB-475510-A (GB)
Title: Improvements in mechanical fan-operated sirens
IPC: G10K7/02
Filed: 1936-05-20
Abstract: 475,510. Sirens. BLANKMEISTER, O. May 20, 1936, No. 14293. [Class 13] The operating mechanism for a fan-operated siren is actuated by a pull on a chain or the like and incorporates a free-wheel device so that continual unidirectional rotation of the fan is produced by successive pulls on the chain. A gear-wheel 11 secured to a drum on which the chain 9 is wrapped, meshes with a pinion 12 which is free on a spindle 5 and carries an arm 13 provided with a slot engaged by a pin 14 on a pawl 16 pivoted on a disc 15. The lower end of the pawl frictionally engages a disc 17 rigid with the spindle 5 which carries the fan 2 provided with blades 3 which force air through adjustable peripheral openings 4 in the casing 1. On release of the chain, the drum rotates in the reverse direction under the action of the spring 8, whilst the pawl 16 is held clear of the disc 17, thus permitting free rotation of the fan 2. The device may be supported by a bracket or by a strap passing around the neck of the operator.
Patent GB-684148-A (GB)
Title: Improvements in selector switches and their interlocking or association with other switches
IPC: H05B37/02
Filed: 1951-06-18
Abstract: 684,148. Mechanical switches, without quick action; locking switches. KLIEGEL BROS. UNIVERSAL ELECTRIC STAGE LIGHTING CO., Inc. June 18, 1951. [July 29, 1950], No. 14402/51. Class 38 (v) [Also in Group XXXV] A selecting switch operated by a knob 24 is connected in series with an on-and-off switch 26 operated by a handle 25 and responsive also, it may be, to overload, interlocking mechanism being provided so that the switch 26 cannot be closed while the selecting switch is open. The selecting switch comprises a circle of fixed contacts 20 and a moving contact consisting of a pin 21 mounted in an insulating plate 18 fixed to a two-part spindle 16, 17 that may be moved axially downwards by the knob 24 till the contact 21 is withdrawn from its fixed contact 20 and then rotated to bring the contact 21 opposite any other selected contact, which may then be engaged by pushing the knob upwards. The plate 18 is wider than the space between two fixed contacts so that operation of the knob 24 is impossible if it is incorrectly aligned. In the downward movement of the knob a plate 40 operates a stop 38, a portion 37 of which pushes the handle 25 of the switch 26 into its open position if it is not already there. A number of such selecting switches may be used in a lighting system for theatres (see Group XXXV).
Patent GB-448146-A (GB)
Title: Improvements in cathode ray tubes for use in television and the like
IPC: H01J29/74
Filed: 1935-05-17
Abstract: 448,146. Cathode - ray tubes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JESTY, L. C., c/o General Electric Co., Ltd., Wembley, Middlesex. May 17, 1935, No. 14535. [Class 39 (i)] " Keystone distortion " of the image due to the inclination of the screen 4 of a cathoderay tube for television &c. is compensated by an opposed " keystone distortion " which is produced by the varying mean potential of the deflecting plates 3 nearer the screen 4 and which is adjusted in magnitude by a conductor 5 between the plates 3 and the screen 4 and at a potential varying in the same sense as that of the plates 3. The plates 3 produce the deflections at low frequency and the high frequency deflections are produced by plates 2 or magnetic coils. One plate 3 is at fixed potential and the other plate 3 receives the scanning voltages. As the mean potential of the plates 3 varies, the ray deflected at the plates 2 is variably refracted to produce a " keystone distortion opposed to the distortion due to the inclined screen 4. The magnitude of the former distortion is adjusted to compensate adequately for the latter distortion by means of the ring 5 of suitable length parallel to the axis 1 of the tube and connected to the plate 3 of varying potential or to a tapping on a potentiometer across the plates 3. Several rings 5 .. 7 may be arranged between the plates 3 and screen 4 and suitably connected to the plates 3. Specification 412,813 is referred to.
Patent GB-143926-A (GB)
Title: Improvements in and relating to upright multitubular boilers with internal furnaces
IPC: F22B9/04
Filed: 1920-05-28
Abstract: 143,926. Speck & Udelhoven Dampfkesselfabrik. Feb. 5, 1919, [Convention date]. Vertical boilers.-A vertical boiler has groups of fire-tubes d extending from top to bottom on each side of a furnace flue b arranged across the middle. The gases pass downwards from the furnace-flue through an external flue f, and then upwards through the fire-tubes to a smoke-box h at the top of the boiler. Vertical water-tubes k in the external flue open into boxes l, m in communication with the upper and lower parts of the boiler.
Patent GB-612173-A (GB)
Title: Improvements in vulcanizing apparatus, particularly for vulcanizing footwear
IPC: B29C35/02
Filed: 1946-05-15
Abstract: 612,173. Suspended vehicles. UNITED STATES RUBBER CO. May 15, 1946, No. 14652. Convention date, June 12, 1945. [Class 103 (iv)] [Also in Groups V and XXVIII] A vulcanizing frame, having article-supporting racks extending from a central pipe 18, is run into a vulcanizing chamber by moving it along a rail 35 from which it is suspended by a carriage 36 having four wheels 37. The frame is so connected to the carriage by a bolt 39 and nut 40 that it is free to rotate about a vertical axis. The frame is locked in a desired position by a pin 42. To prevent the frame rocking, a castor is provided at its lower end, which castor runs between a pair of angle irons.
Patent GB-956759-A (GB)
Title: Improvements in double-action double-disc clutches on agricultural tractors
IPC: F16D21/06
Filed: 1963-04-11
Abstract: 956,759. Friction clutches. REGIE NATIONALE DES USINES RENAULT. April 11, 1963 [April 13, 1962], No. 14696/63. Heading F2C. A double friction clutch for connecting an engine-driven fly-wheel 1 to two concentric output shafts 4, 7 driving respectively a main ground-wheel driving change-speed gear and a power take-off on a tractor, comprises a pair of driven discs 3, 6 connected to the respective output shafts 4, 7 and clamped to a plate 5 secured to the fly-wheel by presser-plates 2, 8. The clutches 3, 6 can be disengaged successively in the conventional way by a throw-out bearing 16 engaging the inner ends of radial levers 11, and the clutch 6 alone may be disengaged by a throw-out bearing 20 engaging radial levers 18. The levers 11 are pivoted at 13 on lugs fast with the plate 5 and are connected at 12 to a cover 9 which is connected by means of pins 10 to the presser-plate 2, and the levers 11 are connected at 14 to elements 15 having a lostmotion connection to the plate 8. When the levers 11 are engaged by the throw-out bearing 16 the presser-plate 2 is first disengaged from the clutch disc 3, and then when the lost-motion has been taken up the presser-plate 8 is disengaged from the clutch-disc 6. In order to disengage the clutch 6 alone, e.g. for sharp cornering of the tractor with the power takeoff interrupted, the levers 18 are pivotally mounted on lugs 22 fast with the plate 5 and have elements 19 engaging the plate 8. The bearing 20 thus disengages the clutch 6 alone.
Patent GB-496143-A (GB)
Title: Improvements in electric discharge lamps comprising materials adapted to be excited to luminescence by radiation from the discharge
IPC: C09K11/59
Filed: 1937-05-27
Abstract: 496,143. Discharge lamps; luminescent materials. GENERAL ELECTRIC CO., Ltd., RANDALL, J. T., and RYDE, J. W. May 27, 1937, No. 14753. [Class 39 (i)] [Also in Group XX] A discharge lamp consuming power W is enclosed within a sealed outer jacket coated internally with one or more specified luminescent materials and the surface area of the jacket is made so much greater than is indicated for power W in the Figure that when the lamp is operated with the bulb exposed freely to still air at 15‹ C. the output of the luminescent material is not less than 50 per cent of the output of the same material when maintained at 15‹ C. The specified materials are calcium, magnesium or zinc tungstates, cadmium silicate, zinc orthosilicate luminescing green or zinc-cadmium sulphide luminescing orange-red ; these materials show a considerable falling off in efficiency, both reversible and irreversible, when their temperature is raised above 200‹ C. and curves showing this effect are given. Other luminescent materials may be added to those specified, but the light from the added materials must not exceed that from the specified materials. The lamp may be a high-pressure mercury-vapour lamp consuming 80 watts, when the outer jacket coated with a mixture of calcium tungstate and zinc-cadmium sulphide may have a surface area of 708 cm.<2> ; if desired, the diameter may be still further increased to 15 or 20 cms., when the lamp is suitable for use by itself as a domestic lighting unit. Specifications 479,424; and 495,415, [Group XX] are referred to.
Patent GB-1200103-A (GB)
Title: Manufacture of alkali metals
Inventor: KUHN ANSELM THOMAS
IPC: C25C7/04
Filed: 1967-03-31
Abstract: 1,200,103. Electrolytic production of alkali metal. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb.27, 1968 [March 31, 1967], No.14782/67. Heading C7B. An alkali metal is produced electrolytically by passing an electrolyzing current from an anode in contact with a fused metal halide salt comprising ions of the alkali metal to be produced and no other monovalent cations to a molten cathode formed of the alkali metal which is to be produced, the molten salt and alkali metal cathode being separated by a polycrystalline ceramic material permeable only to monovalent cations, and removing alkali metal liberated at the cathode. If the metal to be produced is sodium the fused salt analyte may be a mixture of the chlorides of sodium and aluminium. The diaphragm, which may be cylindrical or planar, e.g. consisting of a plurality of rectangular sheets of crystalline material held in a supporting framework. The halide, e.g. chlorine, produced may be recovered as such, or a hydrocarbon or partially halogenated hydrocarbon may be fed into the anode compartment to react with the halogen produced to form a halogenated hydrocarbon. The apparatus shown, e.g. for electrolysis of sodium chloride, comprises a cell formed by steel casings 14 and 15, the space there between being filled with heat insulating brickwork 16, and a compartment 5 containing liquid alkali metal which forms the cathode and which is separated from the anode compartment 1 by a diaphragm 4 of #-alumina. The anode compartment is defined by a side wall 2, and a heating medium, e.g. hot air, may be passed through the space formed between the side wall 2 and the steel casing 14. Anodes 9 suspended on current leads 10 are surrounded by chlorine collecting domes of nickel 11, provided with outlet pipes 12. Sodium produced is withdrawn via outlet 22. In a further embodiment thereof Fig. 2, (not shown) the cathode 5 extends upwards within a cylindrical #-alumina diaphragm (29) and the anodes are formed by a plurality of graphite rods arranged in a ring about the diaphragm (29). Laboratory scale apparatus Fig. 4 comprises an outer glass container 34, a #-alumina crucible 36 having cemented to the rim thereof a ceramic tube 36. Cathode 43 and anode 45 are provided within and outside the crucible respectively. In operation a stream of nitrogen 48 passes down the cathode current lead and out through the holes 29 above the surface of the molten alkali metal 42.
Patent GB-349287-A (GB)
Title: An improved process for the recovery of gas mixtures rich in sulphur dioxide
IPC: C01B17/60
Filed: 1930-05-14
Abstract: 349,287. Sulphur dioxide. SCHROEDER, M., 41, Klopstockstrasse, Berlin. May 14, 1930, No. 14843/31. Convention date, May 15,1929. [Classes 1 (i) and 1 (ii).] Mixtures of sulphur dioxide with other gases, such as air, are obtained from gas mixtures poorer in sulphur dioxide such as roasting gases by absorbing the sulphur dioxide of the initial gas mixture in an aqueous liquid such as water under pressure and treating the solution so obtained with a gaseous medium such as air at atmospheric or sub-atmospheric pressure. Moderate heating of the sulphur-dioxide solution during the expulsion step may be employed, for example by mixing exhaust steam with the air stream. In preparing a mixture of sulphur dioxide and air for use in the contact process for sulphuric acid manufacture, previously purified roasting gases are sucked into a compresser cylinder b through a conduit d, the compressed gases passing by a pipe e to a heatexchanger c and by pipe f to the lower end of an absorber D packed with coke. The gases pass in counter-current to a stream of water sprayed from a pipe k. The sulphur-dioxide-free gases then pass back through the heat-exchanger c in which they are heated by the incoming compressed gases. They are further heated in a heater B before they pass to an expansion cylinder C where they assist in driving the compresser. The sulphur dioxide solution collecting at the bottom of the absorber is passed down a de-gassing tower E in countercurrent to a stream of air sucked through a hole n by a blower F. The sulphur dioxide free liquid leaves through o and the resulting sulphur dioxideair mixture passes to a contact oven G. Specification 251,805, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-496243-A (GB)
Title: Improvements relating to windows and window blinds or screens
IPC: E06B9/264
Filed: 1937-05-28
Abstract: 496,243. Double - glazed windows ; window blinds. STONE & CO., Ltd., J., and CHILTON, A. H. May 28, 1937, No. 14867. [Class 20 (iii)] A heat-insulating air-tight and moisture-tight double window has a movable-slat blind mounted in the space between the panes. The slats preferably have flanged overlapping edges and are mounted in slotted members 4 of lazy-tongs connected to the frame at 10 and to operating cords at 11. The operating cords are arranged as shown in Fig. 2, and are actuated by motor 24 and worm drive 21, 22 connected directly to the pulleys 18. The glass panels are mounted in packing in a frame 3 and are secured by angles 28 and a slidably engaged drift member 32, Fig. 5. The actuating means may also consist of motor-driven screw 46, nut 48 and stops 51 in the cord. The cord in this modification, Fig. 7, is passed a second time along one side of the window by means of additional guide pulleys 43, 44. The spindle of the motor is passed as shown in Fig. 3, through a sleeve secured in the frame and motor casing by a nut 36 and the worm gear and pulleys 18 are mounted between jaws 34<1> formed on the sleeve. Dehydrating material may be placed on the space between the frames. Pneumatic or hand-operation may be used. In the latter case, a stud projecting through the frame and connected to the lazy-tongs is moved by screw and nut gear, the end of the stud being covered with a bellows device to seal the closure. Also thermostatic control from the sun's rays may be substituted for manual switches. Other forms of blind such as a roller blind wound on the rotor of a motor, or a shutter of nesting channel members may be used. The glass may be frosted to sufficient depth to conceal the blind when raised. The blind carrying links of the lazy-tongs may be made longer than the remaining links to allow wider slats to be used.
Patent GB-1378077-A (GB)
Title: Apparatus for reciprocating the threadguide bar of yarn wind-up apparatus
IPC: B65H57/26
Filed: 1972-03-29
Abstract: 1378077 Traverse mechanism HEBERLEIN & CO AG 29 March 1972 [21 April 1971] 14886/72 Heading D1J A yarn-guide bar 1 is pivotably connected via a slide 7 to a rod 5 which carries two rollers 2 engaged in a groove 3 of a cam drum 4. Slide 7 slides on bars 9 and carries resiliently deformable members 7a, 7b to abut stops 8a, 8b at the limits of slide oscillation. The followers may alternatively be slide blocks.
Patent GB-579382-A (GB)
Title: Improvements relating to acid containers
IPC: H01M50/124
Filed: 1943-09-10
Abstract: 579,382. Containers for acids. PRITCHETT & GOLD & E.P.S. CO., Ltd., HONEY, E. M. O'C., and HARDY, C. R. Sept. 10, 1943, No. 14899. [Class 66] [Also in Group XXXVI] A moulded acid-container of pitch or bituminous composition for an accumulator &c. is coated with a composition of polyvinyl chloride or a copolymer thereof, an aliphatic vinyl ester, an ester of acrylic acid, an ester of a substituted acrylic acid or vinylidene chloride, and a plasticiser. The coating material is dissolved in, e.g., cyclohexanone, which dissolves the surface of the container to give a firm bond. The coating is said to be elastic and to seal any cracks which develop in the bonding material.
Patent GB-438664-A (GB)
Title: Process for the treatment of wood for obtaining a dry fuel
IPC: C10B53/02
Filed: 1934-05-18
Abstract: 438,664. Materials for making coke; agglomerating fuel. SPATZ, R., and SENNAC, R., 10, CitÚ Condorcet, Paris. May 18, 1934, No. 14973. Convention date, May 18, 1933. [Classes 50 and 55 (ii)] Wood is heated to 280-300‹ C. in a retort, an exothermic reaction then raising the temperature to 400‹ C., and methyl alcohol, acetic acid, and possibly pyroligneous acid being evolved. The retort is then isolated from the condensing system and the temperature rapidly raised to 600‹ C. The mass which retains hydrocarbons is slowly cooled in the retort and then pulverized and kneaded with all the condensation products. Blocks formed by compression are heated up to about 1000‹ C., and by-products such as methyl alcohol and acetic acid are recovered. The Specification as open to inspection under Sect. 91 describes the mixing of the product of the first heating with the distillates and with mineral or vegetable tars or oils, so as to obtain a granular mixture, and the second heating may be dispensed with if up to 5 per cent of coal powders and agglutinants such as by-products of carbonization or chemicals such as magnesia or carbonates are added. This subject-matter does not appear in the Specification as accepted.
Patent GB-640717-A (GB)
Title: Improvements in or relating to wooden dowels
IPC: F16B12/24
Filed: 1947-06-06
Abstract: 640,717. Dowel pins. NIELSEN, H. E. June 6, 1947, No. 14975. Convention date, Aug. 9, 1946. [Class 89(ii)] Dowel pins have a number of longitudinal grooves 2, Fig. 2, for escape of air separated by transverse glue-retaining grooves 3 that may be inclined according to the amount of glue that is to be retained. Alternate sets of grooves 3 may be inclined in opposite directions, and the grooves 2 may be slightly inclined. In a modification two of the sets of grooves 2 are omitted and the intermediate pairs of grooves 3, Fig. 5, intersect giving a double helical formation.