baber/WOPTO huggingface dataset:
Patent GB-576144-A (GB)
Title: Improvements relating to the production of nickel or cobalt in the form of flake
IPC: C25C5/02
Filed: 1944-04-25
Abstract: 576,144. Pigments. MOND NICKEL CO., Ltd. April 25, 1944, No. 7731. Convention date, May 17, 1943. Drawings to Specification. [Class 95] [Also in Groups XXII and XXXVI] Nickel and cobalt are deposited electrolytically in a laminated form which can easily be stripped from the cathode and reduced to flakes suitable for use as a pigment. Nickel in the required form is produced by a deposition from an electrolyte containing from 0.2 to 0.31 gram of thiourea per litre. A cobalt bath requires 0.4 to 0.6 gram thiourea per litre. Metals suitable for the cathode are aluminium, tantalum, and nickel-chromium-iron alloys, nickel or chromium or insoluble metals being used for the anode. In an example the electrolyte consists of a solution of nickel sulphate, nickel chloride and boric acid, to each litre of which 0.2 to 0.31 gram of thiourea is added, the deposition taking place at 45 to 65‹C. with a current density of 9 to 30 amps. per square foot. though currents up to 100 amps. per square foot may be employed. The deposited metal may be built up to a thickness of 0.03 inch or more and is readily stripped from the cathode and easily split into thin layers. The thiourea in the electrolyte is destroyed at a rate varying from 0.01 to 0.04 gram per ampre hour and must be replaced as the electrolysis proceeds. Most of the sulphur is plated out with the metal but some is deposited on the anode. The nitrogen goes into solution to form ammonium salts which may be crystallized out. When the bath ceases to produce a satisfactory deposit of nickel it may be purified by the addition of hydrogen peroxide and filtered. Thinner laminations of the deposited metal may be produced by making sudden variations in the current such. as interruptions, reversals and momentary large currents. In order to reduce the deposit to flake form it is stripped from the cathode and subjected to impact for twenty hours or more and then ground in a ball mill for about ninety hours. The thickness of the flakes can be further reduced by treating the laminated deposit with a weak solvent before grinding. Dilute sulphuric acid may be used for this purpose and the treatment may continue for 100 hours. An alternative preliminary treatment consists in heating the metal in a reducing atmosphere at a temperature of 1,100‹F. Before grinding, the metal may be sheared into pieces of 0.75 inch square. The pieces are fed to the ball mill with an equal weight of a petroleum product known as varnolene, 1 per cent, of stearic acid and 1 per cent. of aluminium stearate.
Patent GB-1491963-A (GB)
Title: Playback device
IPC: G11B5/33
Filed: 1975-02-25
Abstract: 1491963 Magnetic playback heads PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Feb 1975 [28 Feb 1974 (2)] 7795/75 Heading G5R [Also in Division H3] A plate 1 of magnetizable material contains a magnetic bubble 2 which varies in size according to variations in the magnetic field of a record 9. As shown, two magnetoresistive elements 5, 5<SP>1</SP> on the plate 1 detect the variations in size of the bubble 2 which is movable along a groove 6 by means of adjustments in the currents flowing through two conductors 3, 3<SP>1</SP>. The recording may take the form of deformations in a magnetized surface.
Patent GB-125069-A (GB)
Title: Improvements in and relating to Vehicles.
Inventor: RUDOLF HUNZIKER
IPC: B62B3/04
Filed: 1919-03-28
Abstract: 125,069. Hunziker, R. March 28, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Hand-trucks.-A hand-truck is provided with two pairs of wheels so arranged that the platform assumes an inclined position when all the wheels are in contact with the ground. This arrangement permits of the truck being loaded after the manner of a two-wheeled luggage-truck by swing- ing the platform into the vertical position about the fore wheels a and engaging the horn f beneath the load while the truck may be travelled upon the rear-wheels a<1> only, with the platform horizontal. In mounting kerbs and like obstacles, the fore wheels are first run on to the obstacle and the truck can then be raised about the fore wheels to bring the rear wheels to the level of the obstacle. A hook h on a chain is provided for securing the load.
Patent GB-750377-A (GB)
Title: Improvements in detachable stub needle for hypodermic syringes
IPC: A61M5/32
Filed: 1954-03-18
Abstract: 750,377. Hypodermic injection appliances. GABRIEL, D. March 18, 1954 [March 26, 1953], No. 7923/54. Class 81(2). A stub needle structure for a hypodermic syringe which has a tubular tapered portion which detachably mounts a hypodermic needle unit including a mount having a large diameter bore one end of which is tapered to fit the tubular tapered portion of the syringe, is provided with a large diameter collar fitting on the end of the tubular tapered portion and is abruptly cut away to form a pointed end, a tapered portion engaging the tubular tapered portion being provided on the stub needle adjacent the collar for retaining the needle against accidental displacement. A ferrule 12, Fig. 2, having a tubular tapered portion 13 is mounted on the syringe. The hypodermic needle unit 16 having a mount 21 with a large diameter bore 18 is fitted on the tubular tapered portion 13. The stub needle 20 is provided with a collar 29, which abuts against the tubular tapered portion 13, and a tapered portion 31 which fits snugly within the bore of the tubular tapered portion 13 to prevent accidental displacement. In a modification, Fig. 3, the stub needle 32 is provided with a collar 33 having a tapered sleeve 34 which frictionally grips a reduced portion 35 of the tubular tapered portion 131 so that when the hypodermic needle unit is mounted on the tapered portion 13<SP>1</SP> it is spaced from the sleeve 34. The stub needle is used for filling the syringe from a vial and remains secured to the syringe when the hypodermic needle unit is attached for making an injection.
Patent GB-121898-A (GB)
Title: Improvements in Resilient Wheels.
Inventor: BLACKLOCK HENRY WILLIAM
IPC: B60B9/28
Filed: 1918-05-11
Abstract: 121,898. Blacklock, H. W., and Brill, M. W. May 11, 1918. Spring wheels with continuous outer rigid ring and pneumatic cushions.-In resilient wheels in which two sets of tangentially arranged pistons and cylinders operate to compress air to form a pneumatic cushion, the two sets of cylinders 6, 7 are rigidly secured to the rim 4 and are arranged tangentially to the flanged hub. Air is admitted to the cylinders through check valves 17. Flexible covers 14 are secured to the cylinders and to disks 12 on the spokes 10 to exclude dust from the cylinders.
Patent GB-396329-A (GB)
Title: Improvements in or relating to electro-optical apparatus for indicating acoustic signals and other sounds
IPC: G04D7/12
Filed: 1933-03-16
Abstract: 396,329. Testing frequency of recurrent sounds; regulating timepieces. LEITZ GES., E., Optical Works, Wetzlar, Germany.-(Assignees of Disteli, A. ; Olten, Switzerland.) March 16, 1933, No. 8038. Convention date, March 29, 1932. [Class 139.] Electro-optical means for testing the frequency of sounds (e.g. the tick of a timepiece) of the kind comprising means for converting the sounds into electric oscillations which actuate the oscillating member D of an electromagnetic instrument, and a rotary mirror or prism F whereby a light ray from the member D is directed on to a screen G to trace a curve readable by the naked eye, is characterized by the fact that the mirror or prism F is driven at a constant speed previously determined in accordance with a standard frequency. By this, when another sound (another timepiece) is tested any variation from the standard is readable on the screen. The ticks of the timepiece A are transmitted by microphone B and amplifier C to the oscillating mirror D of an oscillograph D<1>. The light ray E<2> passes to the four-faced mirror F, rotated about a horizontal axis, and thence to screen G. With a standard timepiece at A, the governor J of the drive for mirror F is adjusted until the constant speed of F causes the successive curves on screen G to be superposed each on the previous one. This curve is marked on the screen. Another timepiece is placed at A and the resultant curve on the screen may be compared visually with the standard curve. The timepiece may then be regulated in the usual way until its curve corresponds to the standard curve.
Patent GB-355255-A (GB)
Title: An improved process for atomizing oils
IPC: F23D11/24
Filed: 1930-03-12
Abstract: 355,255. Atomizing lubricating oil. ROSS, S. D., 1829, East 2nd Avenue, and EDWARDS, C. F., 301, West 10th Avenue, both in Vancouver, Canada. March 12, 1930, No. 8074. Convention date, June 11, 1929. [Class 12 (iii).] Lubricating oil is atomized by admitting air to the supply-line so that bubbles formed therein burst as they meet a second stream of air at a point remote from that at which the first supply enters. Oil is raised by a pump or other suction-producing device past a restricted orifice 10 into a duct 20 and air is drawn into the duct to form bubbles through a pipe 19, the bubbles being exploded within the duct by the admission of a further stream of air which enters through a pipe 15. The amount of air admitted at 15 is adjusted by a needle-valve 16. The atomized lubricating oil may be delivered to the intake manifold of an internal-combustion engine.
Patent GB-1253382-A (GB)
Title: Improvements relating to water-borne gas-cushion vehicles
Inventor: NICHOLAS DAVID WILLIAM
IPC: B60V1/00
Filed: 1968-04-03
Abstract: 1,253,382. Air cushion vehicle. HOVERMARINE Ltd. 31 March, 1969 [3 April, 1968; 14 Feb., 1969], Nos. 15953/58 and 8078/69. Heading B7K. [Also in Division H4] A water-borne air cushion vehicle 1 is provided with an echo-sounding transducer unit 6 which in use is disposed beneath the cushion 3. The transducer 6 is situated during operation substantially vertically below the centre of pressure of the cushion and. is attached to a two-part support column 7 of elliptical section which may be raised or lowered by means of a handle 32 attached to a nylon roller 8 which has a serrated portion 31 to engage with a serrated portion of the column 7. The column is supported by two pairs of rollers 8 inside an elliptical casing 10 and is sealed off by means of a series of flexible segments 27, 28 of the type described in Specification 1,043,351. In an alternative embodiment the transducer (41), Fig. 4 (not shown), is attached to a support (42, 43) which is hinged to the body of the air cushion vehicle and may be pivoted thereabout by means of an actuator (47) which urges the transducer to its extended position and is connected to a relief valve (55) controlling the escape of hydraulic fluid to reduce the possibility of damage by impact with floating debris. The Specification describes a method of obtaining access to the transducer during operation using a polyethene bag attached to the floor of the vehicle.
Patent GB-138485-A (GB)
Title: Improvements in or relating to universal joints for the coupling of shafts and the like
IPC: F16D3/78
Filed: 1919-03-31
Abstract: 138,485. Savage, G. H. March 31, 1919. Universal couplings. - A flexible-ring coupling is provided with a central ball- and-socket joint in which there is no metal-to-metal contact to prevent the coupling from running out of truth. The surface of the ball f, or socket e, is formed of non-metallic material such as rubber, leather, &c. to prevent noise, and one of the spiders such as c, Fig. 1, may be bolted to the shaft to facilitate removal. In the form shown in Fig. 4, the socket e is formed in a central spider n bolted to one of the spiders c.
Patent GB-290789-A (GB)
Title: Improvements in or relating to the soundboxes of gramophones and like sound reproducing machines
IPC: G11B3/46
Filed: 1927-03-24
Abstract: 290,789. Vernon Lockwood Manufacturing Co., Ltd., and Cullum, H. J. March 24, 1927. Tool-arm mountings. - Relates to gramophone and likesound-boxes of the kind in which the cross-bar of the stylus - arm is mounted on a number of pivots which engage the cross-bar on opposite sides, and are so arranged that the pivot points lie in the same straight line. According to the invention, the pivots on one side consist, of conical pins b<1> fixed to the sound-box casing and engaging in recesses in the cross-bar c, while those on the opposite side consist of washers e<1> carrying knife-edges f, engaging in recesses, the bases of which are in alignment with the points of the pivots b<1>. The knife-edges are pressed into contact with the cross-bar by springs d surrounding screws passing through the bar.
Patent GB-435269-A (GB)
Title: Improvements in and relating to thermostatic switches
IPC: H01H89/04
Filed: 1934-03-15
Abstract: 435,269. Thermal switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, MORTON, C. J., 86, Wainbody Avenue, Coventry, and SIMS, W. J., 17, Fisher Avenue, Hillmorton Paddox, Rugby. March 15, 1934, No. 8200. [Class 38 (v)] A thermal switch comprises a fixed copper tube 2 to one end of which is adjustably screwed a rod 1 of steel having a low temperature coefficient of expansion. Movement of the rod 1 is transmitted by a pin 9, washer 8 and spring 7 to a sleeve 6 which bears on a pivoted plate 25 in engagement with a struck-up lug 24 of a spring contact arm 4 fixed at 23 and carrying at its free end a contact 21 co-operating with a fixed contact 20, and an armature which cooperates with a permanent magnet 22 to give a snap-action. The working temperature is adjusted by unscrewing or screwing up the rod 1 and if the switch is adjusted to a low setting while the elements are at a high temperature, the strain is taken by the spring 7, the plate 25 being held by a stop 3. The switch can be manually operated at any time by turning the knob 10 when a cam (not shown) engages an extension 5 of plate 25.
Patent GB-204244-A (GB)
Title: Improvements in and relating to furnaces
Filed: 1922-03-21
Abstract: 204,244. Gilchrist, W. A. March 21, 1922. Refuse fuel, furnaces for burning; steam-generator furnaces.-Relates to furnaces more particularly adapted for burning low grade fuel, such as lignite, peat, wood waste, and refuse from the manufacture of sugar, and consists mainly in reflecting a portion of the generated heat back on to the fuel bed to assist in 'the drying and distillation of the fuel. In the construction shown in Fig. 1 the fuel is fed in the furnace through a hopper 21 arranged in an inclined arch 15 above the grate, at the rear of which is a large combustion chamber 22 bound by a forwardlyfacing wall 16 extending upwards to a level above that of the front end of the fire-box. The wall 16 becomes incandescent, and from the portions of this wall both above and below the level of the front end of 'the fire-box, heat is radiated on to the fuel bed both directly and by reflection from the arch 15. The whole of the air supply to the furnace is delivered through the grate. The floor 23 of the combustion chamber may be at or slightly above the grate level, and the flat grate 13 may be replaced by an inclined grate. When fuels producing a long flame are used, the flue passage leading to the boiler may be longer than as shown in Fig. 1, or it may be formed with two right-angled turns. When the furnace is applied to a vertical water-tube boiler the outlÚt flue may lead rearwardly from the combustion chamber, or first vertically and then rearwardly, and this latter form of outlet is also used when the arch above the grate is horizontal. In the construction shown in sectional plan in Fig. 16 in which the grate is of considerable width, the feed openings are so arranged in the arch that five piles of fuel are formed on the grate, the two piles 59 at the front being staggered relatively to the three 60 at the rear. The unoccupied front corners of the fire-box then form auxiliary combustion chambers 62, 63. In the construction shown in Fig. 10 the forwardlyfacing wall 40 at the rear of the combustion chamber and the arch 41 above the grate are curved as seen in vertical section, and when this form is adopted the side walls may be rounded so that the furnace is substantially elliptical in plan. Three charging hoppers are then provided, one at each side of the outlet flue 49, and one in front. In some cases the rear wall may be curved as seen in horizontal section only, and in one form of furnace described a vertically-curved rear wall is used in conjunction with an inclined. arch above the grate. In another form Fig. 13 the furnace consists of a circular dome 53 with a central grate 13 surrounded by an annular combustion chamber 22. The outlet flue 55 is also central and around it are four symmetricallyplaced feed hoppers 43. Specification 8299/09 is referred to.
Patent GB-1024209-A (GB)
Title: Improvements in slip ring packings for shafts
IPC: F16J15/36
Filed: 1965-02-24
Abstract: 1,024,209. Mechanical seals. H. WERNERT & CO. KOMM. GES. Feb. 24, 1965 [Feb. 25, 1964], No. 8265/65. Heading F2B. In a mechanical seal for a rotary shaft 1, particularly for a pump for corrosive fluids, and comprising a non-rotatable sleeve 4 sealed to the shaft housing 2 by a rubber &c. disc 9 and urged by a spring 8 into facial sealing contact with a ring 3 rotatable with the shaft, the spring is located in a counterbore in the sleeve 4 to protect it from the sealed fluid and the disc 9 tightly engages both the inner and outer surfaces of the end of the sleeve remote from the ring 3. The outer portion of the disc 9 is clamped between the housing 2 and an end cover 7. The ring 3 may be of carbon, ceramic or glass and the sleeve 4 may be of graphite.
Patent GB-442474-A (GB)
Title: Improved apparatus for use in the retreading of tyres
IPC: B29D30/54
Filed: 1935-03-16
Abstract: 442,474. Moulding and vulcanizing treads on tyres. SIMON, Ltd., H., Bird Hall Lane, Cheadle Heath, Cheshire. March 16, 1935, No. 8266. Convention date, April 18, 1934. [Classes 70 and 87 (ii)] In a tyre-retreading apparatus comprising an annular mould 6 of less depth than the width of the tyre casing and two pressure plates 8, 9, the plates are of such size as to be capable of engaging casings of varying diameters and adjustable mould anchoring devices are provided to prevent the mould from shifting during vulcanization. The plates 8, 9 may be annular and disposed horizontally, the lower plate 8 forming a table supported by legs 10. The mould 6 is surrounded by a steam conducting pipe coil 7. In use, the tread c is placed on the tyre which is contracted and placed within the mould. A wheel rim d is applied and an inner tube b inflated slightly. The tyre is then laid on the plate 8 and clamped between it and the plate 9 by yokes 11 pivoted at 12 to the plate 8 and carrying adjusting screws 13. The plates engage the side walls and prevent lateral expansion when the inner tube is further inflated to press the tread against the mould. The mould anchoring devices comprise fingers 17, 18 mounted on posts 15 set in arms 14 pivoted about the legs 10.
Patent GB-163858-A (GB)
Title: Improvements in or applicable to the point-bar mechanism of twist-lace machines
IPC: D04C5/04
Filed: 1920-03-20
Abstract: 163,858. Jardine, Sir E., and Watchorn, E. March 20, 1920. Lace machines.-To reduce the wear on the moving parts which is set up by the action of the point-bar dipping-cams D each cam plunger A is provided with a casing B in which the antifriction roller C is mounted and the exterior bear. ing surfaces B<1> of the plunger casing are cylindrical and concentric with the plunger A. These surfaces work in conjunction with similarly-shaped surfaces of dependent guide brackets G, G<1>.
Patent GB-1388533-A (GB)
Title: Method for supporting a rotating body of an electric generator in a missile and a supporting arrangement for supporting such bodies
IPC: F01D25/12
Filed: 1973-02-20
Abstract: 1388533 Driving and cooling electric generators KONGSBERG VAPENFABRIKK A/S 20 Feb 1973 8364/73 Heading H2A [Also in Divisions F1 and F2] The invention relates to a method of supporting the rotating assembly of a turbine driven electric generator in a missile. The rotating assembly comprises a shaft 2 on which is mounted a ram air turbine rotor 3 and the rotor 1 of the generator, the assembly being disposed within the nose-cone 7 of the missile, the nose-cone being formed with an inlet opening 8 for inflow of ram air and with openings 18 for discharge of the air from the turbine. The shaft 2 is formed with a through-bore 14 and is rotatably supported within fixed structure by forward and rearward ball-bearings 4, 5. A pair of spring washers 10 is disposed between the rotor 1 and theinner race of the rear bearing 5 whereby upon initial acceleration of the missile at launch the rotor is forced by inertia against the stator part 15, the rotor assembly moving forward to the position shown when the acceleration ceases. Ram air flows through the bore 14, and reverses in direction in the chamber 16 to flow forwardly through the rear bearing 5, past the rotor 1, through the forward bearing 4, through the radial space 17 at the rear face of the turbine rotor 3 and discharges through the openings 18. The air serves to cool and lubricate the bearings. The surface of the chamber 16 is formed with a projection 15<SP>1</SP> which assists the reversal of the air flow; any solid particles in the air flow are centrifuged at 16<SP>1</SP> so that clean air passes through the bearings.
Patent GB-413074-A (GB)
Title: Improvements in mariners' compasses
IPC: G01C17/24
Filed: 1933-03-21
Abstract: 413,074. Mariners' compasses. GILLIE, J. W., and GILLIE, J. C., The New Quay, North Shields. March 21, 1933, No. 8474. Drawings to Specification. [Class 97 (ii).] The brass binnacle helmet of a mariner's compass has a window formed by a detachable, curved sheet of transparent celluloid or similar flexible material.
Patent GB-374952-A (GB)
Title: Improvements in switching arrangements for telephone systems
IPC: H04M17/02
Filed: 1931-03-19
Abstract: 374,952. Exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm.-(Assignees of Blomberg, K. H. ; 39, Lokattsvagen, Appelviken, and Vigren, S. D. ; 41, Banergatan, Stockholm, both in Sweden.) March 19, 1931, No. 8514. Convention date, March 21, 1930. [Class 40 (iv).] The microphone at a prepayment station is rendered ineffective during the period between the completion of the wanted connection and the operation of the prepayment device by means of a relay at the exchange which energizes when the ringing key is thrown or when the called subscriber replies, and either deprives the calling line of feed current or inserts a oneway device in the connection. In Fig. 1, operation of the ringing key EOR energizes relay SVR, sleeve relay BR having previously energized, and the b wire is connected to relay TR, the calling line being thereby deprived of feed current through relay SR. Actuation of the prepayment device D connects earth momentarily to both line wires, so that relay TR pulls up and releases relay SVR by shortcircuiting its upper winding, by which it is held after the restoration of the key EOR. In Fig. 2, when the called subscriber replies, relay BSR energizes and connects up relay SVR, which inserts a thermionic valve E in the connection. When the prepayment device D is operated, the insertion of the resistance r releases relay SR1 but not relay SR2, so that relay TR energizes, locks and disconnects relay SVR. In Fig. 3, which is for local battery working, the thermionic valve E is connected in by a relay SR which energizes over the sleeve circuit when the ringing key EOR is operated and holds over the calling loop until it is interrupted by the actuation of the prepayment device D. The Specification as open to inspection under Sect. 91 (3) (a) describes also another arrangement in which a relay energized by the ringing key reverses the current over the calling line, the substation apparatus including a polarized relay or a rectifier, and the current direction is restored by contacts controlled by the prepayment device. This subject-matter does not appear in the Specification as accepted.