baber/WOPTO huggingface dataset:
Patent GB-664996-A (GB)
Title: An apparatus for charging a variable number of accumulators with substantially constant current
IPC: H02J7/12
Filed: 1948-12-08
Abstract: 664,996. Battery charging systems; automatic control of current. COMPAGNIE GENERALE D'ELECTRICITE. Dec. 8, 1948, No. 31798/48. Class 38 (iv). A constant current charger for supplying maintenance charge to a variable number of batteries 5 comprises a rectifier 1 fed from the secondary winding 72 of a charging transformer 7 through a D.C.-controlled reactor 3, the control winding 4 being energized in accordance with the voltage at the charging terminals 51, 52. The winding 4 and the A.C. windings 2 of the reactor may be tapped to allow adjustment of the charging current, fine control being provided by a rheostat 6 in the control winding circuit. A barretter 8 in the primary circuit 71 of the transformer accommodates mains voltage fluctuations.
Patent GB-485544-A (GB)
Title: Improvements in and relating to collapsible portable tents
IPC: E04H15/00
Filed: 1937-11-19
Abstract: 485,544. Tents. THOMAS, C. Nov. 19, 1937, No. 31946. Convention date, March 31. [Class 20 (i)] A portable tent which is capable when collapsed of being used as a hand-bag, cornprises a closed tent roof c and a tent wall d, both attached to a hoop a formed in two hinged portions, so that, when collapsed on each other, the tent roof forms a bag to contain the flexible wall. Apertures f are provided in the roof material, to allow the hoop to be gripped when used. as a bag. The tent is suspended from collapsable rods g by a fitting h which extends through the top of the tent and forms suspension hooks i for clothes inside the tent. Pockets with sliding clasp-fastenings may be provided on the wall of the tent to hold the rods g and further pockets may be provided in the roof. An opening in the wall is adapted to be closed by a sliding clasp-fastening m, and a floor may be provided attached to the edge of the wall by a similar fastening.
Patent GB-323849-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/02
Filed: 1928-11-02
Abstract: 323,849. Franklin, C. S. Nov. 2, 1928. Vacuum tubes. - A thermionic valve provided with oppositely arranged electrodes has the anode formed as a solid metal plate A, the grid being constituted bv a metal disc-shaped part G provided with grooves in which are arranged filament portions F. The electrodes A, G are separated and supported by glass parts G P to which the electrodes are fixed by vacuum seals. The ribs formed by the grooves project to any desired extent and may be integral with or formed separately from the main body of the electrode. Cooling of the electrodes may be effected in any known manner.
Patent GB-537128-A (GB)
Title: Improvements in temperature correction devices for watt-hour meters and like instruments
IPC: G01R11/185
Filed: 1939-12-12
Abstract: 537,128. Compensating meters for temperature errors. VENNER TIME SWITCHES, Ltd., MATTHEWS, S. J., and DEAN, A. W. Dec. 12, 1939, No. 32024. [Class 37] A permanent magnet is provided with a magnetic shunt of a material of which the permeability varies with rise of temperature in such a sense that the flux density in the gap between the poles of the magnet remains constant. The C-shaped permanent magnet 1 of an A.C. energy meter is provided with a shunt 2 composed of a material the permeability of which decreases with rise of temperature. The shunt may be a single U-shaped lamination having the extremities 2a, 2b of its limbs cranked or offset and fixed to the corresponding side faces of the poles 1a, 1b of the magnet so that the major part of the shunt 2 is parallel with but spaced slightly from the face of the magnet 1. The meter may also be provided with the temperature corrected quadrature ring described in Specification 537,129.
Patent GB-397455-A (GB)
Title: Improvements in or relating to powder boxes
IPC: A45D33/32
Filed: 1931-11-18
Abstract: 397,455. Electric battery lamps. KALABEK, V., 21, Matulkovß, Brno- Krßlovo Pole, Czecho-Slovakia. Nov. 18, 1931, No. 32036. Convention date, Nov. 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 39 (ii).] A vanity case of round, rectangular, or other form is provided with an electric lamp which can illuminate the face when the lid 23 is raised but which shines through an aperture 17 in the lid when it is closed. A mirror 24 held in the lid by a ring or spring has a portion of its silvering removed to allow the light from the lamp to pass through the aperture 17. The lamp may be provided with a reflector and lens and may be mounted on the lid or in front of a recess 6 for powder. The recess 6 and lampholder 5 may be formed as shown in the top of the body part of the case or in a member which is slid into the body part or hinged thereto on the lid hinge or on a separate hinge, a projection by which this member can be lifted being provided. An electric battery is positioned in the body of the case and access thereto is obtained through a push-in or hinged cover 21. One pole of the battery is connected to the lamp and the other to the lampholder through a pushbutton switch on the body part of the case or on the top thereof.
Patent GB-1018651-A (GB)
Title: Improvements in thermography
Inventor: KAL MAWSON VLADIMIR ALEXANDROV
IPC: B41M5/26
Filed: 1963-08-14
Abstract: 1,018,651. Selective printing. VSESOWZNY INSTITUTE NAUCHNOI I TEKNICHESTOI INFORMATSII. Aug. 14, 1963, No. 32084/63. Heading B6F. A method of producing the image of a character comprises placing the character against a thermosensitive layer and heating the character. As shown, a series of rotatable discs each having a number of characters in black on a white ground arranged on it forms a drum 2. The rings may be rotated to form a line of print. A sheet of thermosensitive material may be placed between the drum and a transparent band 7 and exposed to radiant heat from an infra-red lamp 5 by operation of a shutter 4. In a modification, Fig. 3 (not shown), the rings of characters are not independently rotatable, the character is selected by rotation of the drum and exposed by shutters corresponding to each ring.
Patent GB-945104-A (GB)
Title: A method and apparatus for responding to approaching icing or condensation coí¡í¡ ina venturi
IPC: G05D23/19
Filed: 1961-09-07
Abstract: 945,104. Measuring electrically; meteorological instruments. O. D. COLVIN. Sept. 7, 1961 [Sept. 27, 1960], No. 32111/61. Headings G1N and G1X The approach of condensation, and possibly icing, conditions in a Venturi in e.g. the carburettor of an I.C. engine, in, for instance, an aircraft, is indicated by sensing the dry bulb temperature in the Venturi, sensing the dewpoint temperature of the air in the vicinity of the Venturi, and indicating both temperatures on a common scale. As shown, the dewpoint temperature of the air entering the Venturi 11 of a carburettor 10 via a conduit 14 is sensed by a device 24, e.g. of the kind described in U.S.A. Specification 2, 359, 278, the electrical output of device 24 being linearized at 25 to deflect a pointer 26 angularly about a pivot axis 23 to indicate the dewpoint temperature on a calibrated scale 21. The dry bulb temperature at the throat of the Venturi 11 is measured by a thermistor 15, or by a thermocouple, the signal so produced being used to deflect a pointer 22, also pivoted on axis 23, over scale 21. The pointers 22,26 bear flags 22a, 30, suitably coloured to give visual indication of the imminence of condensation conditions, and the juxtaposition of the flags may be arranged to operate visual and/or audible warning devices 35, 36, and, if desired, heating means 34 for reducing the dewpoint of the air entering the Venturi. Heating means 34 may alternatively be manually operated by handle 33.
Patent GB-282728-A (GB)
IPC: H01R33/76
Filed: 1927-11-29
Abstract: 282,728. Radiotechnique. Dec. 31, 1926, [Convention date]. Vacuum tubes. - An adapter has five sockets receiving the pins of a valve, and four contact pins adapted to be inserted in an ordinary valve holder; the sockets a, b for the cathode pins are connected with terminals c, d respectively on the adapter, the sockets e, g for the grid and anode are connected with the pins f, h respectively, and the socket i, receiving a separate return pin for connecting the grid circuit to the cathode independently of the cathode pins, is connected with the pins j, k engaging with the cathode sockets in the holder.
Patent GB-391385-A (GB)
Title: Improvements in pulley blocks
IPC: B66D3/10
Filed: 1932-11-14
Abstract: 391,385. Pulley-blocks rope brakes. PLœCKER, C. J., 139, Leuvehaven, Rotterdam, Holland. Nov. 14, 1932, No. 32209. [Classes 78 (ii) and 78 (v).] The rope 9 passes off from the central sheave 4 of a series of sheaves 3, 4, 5 rotatably mounted on a spindle 6 between a fixed roller 11 and a movable roller 14. The load pulls the rope in the direction of the arrow, Fig. 2, and causes the roller 14 to move towards the roller 11, thereby clamping the rope. The roller 14 is mounted in a fork 16, Fig. 6, which is slidably mounted in an arm 13 pivoted at 12. The sheave 4 runs on a bush 26 which is formed with a conical portion and provided with a hand-lever 27. Cam sectors 28, 29 on the bush co-operate with corresponding sectors 30, 31 on the intermediate cheek 7 and cause the bush to be displaced when the lever is turned. The movement of the bush causes its conical portion to exert a braking action on a correspondingly .shaped part of the sheave 4. At the same time the bent central portion of the cheek 7 is pressed against the sheave 3 and exerts a braking action on it. The sheave 5 is prevented from rotating in the lowering direction by pawl-andratchet mechanism.
Patent GB-601798-A (GB)
Title: Automatic dial-reading weighing balance
IPC: G01G1/00
Filed: 1945-11-29
Abstract: 601,798. Weighing-apparatus. NASH, A. J. Nov. 29, 1945, No.. 32211. [Class 143] A pendulum balance, which does not require accurate levelling, comprises a balance lever 25 hung on a pivot 20 spanning front and rear frame plates 12, 13 and with a vertical scale-pan supporting column 16 pivoted to it at 29. An index 18 on a member 33, also freely hung on the pivot 20, indicates the weight against a quadrant-shaped scale 19 attached to the balance lever 25, the member 33 remaining vertical under gravity if the balance is out of level so that the indicated weights remain correct. In the particular construction shown the balance lever 25 and member 33 are in duplicate, front and rear elements of the balance lever being united by the balance weight 27 and by a tubular distance piece on the pivot 20, and those of the member 33 by an integral web 34 below the balance weight. The column 16 is maintained vertical by a link 31. The effective load-supporting arm of the balance lever is horizontal when unloaded so as to give a more open scale under light loads. The edges of the frame plates are joined by a strip 14 to form the casing of the apparatus. As an alternative, the weight scale may be on the member 33 and the index 18 on the balance lever.
Patent GB-289114-A (GB)
Title: Regulation of the power factor in electric furnaces
IPC: H02J3/18
Filed: 1926-12-20
Abstract: 289,114. Campbell, D. F., Taylor, G. E., and Electric Furnace Co., Ltd. Dec. 20, 1926. Supplying consuming devices; regulation, automatic. - The power factor of a load circuit including an electric furnace is maintained at a desired value bv an adjustable capacity in series or in parallel with the energizing coil of the furnace. An electromagnetic device, comprising coils excited by the voltages across or currents in the furnace coil and capacity circuits respectively, indicates the power factor and may control automatic switching means varying the capacity. The coils of the indicator may operate upon separate pointers rotating about a common axis or jointly in opposition upon a common pointer. A system for automatic control of power factor is shown in Fig. 3 in which G is the d.c. generator, E. the furnace coil and K<1> - - K<4> capacities in a parallel circuit the first three of which are controlled by electromagnetic switches S<1> - - S<3>. These are arranged to operate in sequence at predetermined intervals so long as one or other of switches e<1>, e<2> are closed. Solenoids A<1>, A<2>, energized by current transformers B', B<2> in the furnace coil and capacity circuits respectively, operate upon linked cores b<1>, b<2>, which operate the switches e<1>, e<2> according to power factor conditions which may be determined by the setting of shunt resistances c<1>, c'.
Patent GB-306990-A (GB)
Title: Improvements in or relating to testing devices for impulse senders
IPC: H04M1/24
Filed: 1927-11-30
Abstract: 306,990. Automatic Telephone Manufacturing Co., Ltd., and Preist, T. P. Nov. 30, 1927. Automatic and semi-automatic exchange systems. - The speed of an impulse sender is cheeked by comparison with a standard impulse sender of the weighted pendulum type, the two senders being started simultaneously to send impulses to two stepping switches. In the arrangement of Fig. 1, the impulse sender 35 (which may send more than ten impulses in a series) is tested against a standard sender comprising springs 34 and a vibrating relay 14. Depression of the start key 10 energizes holding magnet M, and ground impulse from the springs 35 cause twostep relays 11, 12 to operate, and the latter on full energization (on the break of springs 35) releases magnet M to start the standard sender, and connects the magnets DM1. DM2 to the springs 34, 35 respectively. The switches SS, TS are thus stepped together, and when the former has made 20 steps, stop relay 13 energizes, and a lamp is lighted over a wiper of the switch TS to indicate the speed of the sender under test. By taking a larger number of impulses, a smaller error may be discerned. Release of the start key 10 effects the restoration of the apparatus. The speed of the standard sender may be checked by connecting a telephone to the jack TS and throwing the key 32. The vibrating relay 14 energizes and the magnet DM1 steps the switch SS continuously, and ground is connected to the telephone at every fifth impulse to give a click. If the adjustment is correct there will be 120 clicks per minute. In the arrangement of Fig 2 for testing a subscriber's dial from the substation, the apparatus is reached over the exchange switches by dialling a special number. Line and release relays 60, 61 energize, connecting up the holding magnet M<1> and relay 64. The faultsman dials O, and at the first break, relay 63 energizes, releasing magnet M<1> to start the standard sender and connecting the magnets DM3, DM4 to the standard sender and to the back contact of relay 60 respectively. The switches SS, TS are stepped together, and when either or both have made ten steps, rotation is stopped by one or both of relays 66, 67, and a tone which is low, high or intermittent is applied to the line according as the dial speed is too slow, too fast or correct. Relay 62 which energized at the first impulse falls back, connecting up relay 65 in series with relay 63. The faultsman makes the necessary adjustment if the dial speed is incorrect and dials a further digit, which causes relays 63, 65 to release and restore the switches SS, TS to normal in readiness for a further test. Alternatively the restoration may be effected by means of a timing device. The standard sender may be tested as in Fig. 1 by means of the key 55.
Patent GB-854304-A (GB)
Title: Closing device for collapsible tubes
IPC: B65D47/26
Filed: 1958-10-09
Abstract: 854,304. Stoppers. GIRARD, E. P. Oct. 9, 1958 [Oct. 9, 1957], No. 32305/58. Class 125(3). A closure for collapsible tubes comprises a cap 2 acting as a rotary valve and coupled to a nut 7 by means of pins 20 which engage holes 19 in a flange 18 formed or the cap, so that the members 2 and 7 may be rotated on a nozzle 1 on the tube to cause outlets 9 and 6 on the cap and nozzle respectively tc coincide. The cap 2, which may be of aluminium foil or of plastics material, has a tongue 21 engaging a groove 17 in the nozzle when the cap is placed over the nozzle with the holes 9, 6 coinciding. After the pins 20 engage the holes 19, as the nut 7. is screwed down, the cap 2 may be screwed about 1¢ turns further. The cap may then be turned back only a ¢ turn before the members 17, 21 engage, at which point the holes 9, 6 will coincide. The nozzle may have a hemispherical end Fig. 6 (not shown), or may be cylindrical with an outlet in its end face, Fig. 7 (not shown).
Patent GB-251559-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/46
Filed: 1925-12-22
Abstract: 251,559. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 22,1925. Systems for alternating-current motors only; automatic starters.-In an automatic starter for a synchronous motor A, switches 1, 2 for applying reduced voltage to the motor armature are closed first; afterwards a switch 5 for applying full voltage to the armature and a switch 6 for connecting the motor field F to a battery B are closed m succession under the control of a retarded re- ]a<y> device 8 the contacts of which can be adjusted in position so as to alter the timing or order of succession. The whole sequence of operations is subject to a curernt-limit relay 11. Resistance R<l> is automatically short-circuited across the field winding during the first stage of starting.
Patent GB-1150729-A (GB)
Title: Improvements in Moderator Core Structures for Nuclear Reactors
Inventor: TRIGGS GEOFFREY WILLIAM
IPC: G21C5/04
Filed: 1965-07-28
Abstract: 1,150,729. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 July, 1966 [28 July, 1965], No. 32381/65. Heading G6C. A gas-cooled graphite moderated nuclear reactor has the coolant flowing through the reactor core in two independent streams, one being a fuel coolant stream and the other a moderator coolant stream, means being provided whereby the two streams join within a region of the core near to the fuel coolant inlet. In one embodiment the core blocks 4 have longitudinal bores 5 defining vertical fuel element channels 8 and the interspaces between the core blocks form moderator coolant passages 9. The lower ends of the blocks 4 of the bottom layer nest together with the existence of only narrow interspaces between adjacent faces. A circumferential channel 24 is formed around the lower end of each of the blocks 4 of the bottom layer and these channels 24 are connected with the bores 5 of the blocks by radial ports 25. The channels 24 in combination form a common gas voidage space 26 across the lower end of the core structure. The blocks 4 are supported by a plate 6 from apertures in which tubes 27 forming part of a structure for supporting fuel elements in the channels 8 extend downwards. The tubes 27 have gas inlet ports 29. Gaseous coolant passes down through the moderator coolant passages 9 and enters the voidage space 26 through the radial ports 25 to join the fuel element coolant which passes directly into the fuel element channels 8 from the tubes 27. By means of this arrangement, coolant heated in passing down through the passages 9 does not come into contact with the core support structure. This coolant makes a significant contribution to the coolant flow through the fuel element channels 8 and the provision of the voidage space 26, which collects the coolant from the passages 9 before it enters the fuel element channels 8, helps to avoid serious starvation of coolant flow in adjacent fuel element channels when the fuel elements are discharged from any particular fuel element channel.
Patent GB-1026201-A (GB)
Title: Method of and apparatus for separating oil from water
IPC: E02B15/10
Filed: 1963-08-16
Abstract: 1,026,201. Removing oil from water. BRITISH PETROLEUM CO. Ltd., BRACKLEY P. G. and SEYMOUR A. July 22,1964 [Aug. 16, 1963], No. 32460/63. Heading BiD. Oil is removed from the surface of water by a driven endless band of polyurethane from 18, which absorbs oil where it contacts the surface 19 and is then squeezed between rollers 11,12, the oil falling into trough 16. Band 18 is canvasbacked; roller 12 is driven and geared to roller 11. The arrangement may be suspended between the twin hulls of a catamaran, for removing oil spillages from the sea. The pores in the 'foam' are interconnected, as in a sponge.
Patent GB-412484-A (GB)
Title: Improvements in steam traps
IPC: F16T1/10
Filed: 1933-11-21
Abstract: 412,484. Steam traps. STILL & SONS, Ltd., W. M., and STILL, E. H., 29, Charles Street, Hatton Garden, London. Nov. 21, 1933, No. 32481. [Class 64 (ii).] A steam trap of the kind described in Specification 236,427, [Class 64 (ii)], comprises a plurality of capsules 1, 2, the uppermost being provided with a valve member which is operated by the combined expansion of all the capsules. The lower sides of the capsules may be recessed to receive a corresponding projection on the capsule next below, to centralise them. All the capsules may be alike.
Patent GB-865892-A (GB)
Title: Material mixing and dispersing apparatus
IPC: B01F15/00
Filed: 1959-09-24
Abstract: 865,892. Mixing appliances; driving mechanisms. COWLES DISSOLVER CO. Inc. Sept. 24, 1959 [July 1, 1959], No. 32485/59. Class 86. A mixer has an agitator 14 rotated by a vertical shaft 13 driven from a countershaft 33 through speed reducing belt gear 36, 37, 38. The countershaft 33 also carries a split-sleeve, variable-diameter pulley 39 which in co-operation with a V-belt 43 and a similar pulley 41 on the shaft 32 of the reactor 12 forms a variable-speed drive. The upper half of the pulley 39 is fixed on the shaft 33; the lower half is slidable on the shaft and urged upwards by the spring 40. The lower half of the pulley 41 is fixed on the shaft 32; the upper half is slidable on the shaft and rotates upon a member 44 which is axially adjustable in relation to the shaft by means of yoke 47 which is pivoted on brackets as at 50 and is actuated by a handwheel 20 and shaft 54,( see also Figs. 3 and 4, not shown) ; the shaft carries an indicator 59. The mixing head is mounted on a piston 21 which slides inside a hollow cylindrical pedestal to which oil under pressure can be admitted from the tank 24 to raise the mixing head, which can also be rotated round the pedestal axis and locked in position by the clamping screw 19.
Patent GB-863909-A (GB)
Title: Duplex liquid fuel burner nozzles
Inventor: GASCOIGNE DENIS
IPC: F23D11/38
Filed: 1958-10-13
Abstract: 863,909. Liquid fuel burners. LUCAS (INDUSTRIES) Ltd., J. Jan. 1. 1960 [Oct. 13, 1958], No. 32552/58. Class 75(1). A liquid fuel burning nozzle comprises a main jet nozzle 7 formed by the forward end of a hollow extension 6 in a screw-thread connection with one end of the body 1, a pilot jet nozzle 12, a feed ring 9 provided with passages directing fuel into the main nozzle and also supporting the pilot nozzle, and a plug 13 having passages to direct fuel into the pilot nozzle. A peripherally gapped bush 16 secures the components within the extension. Main jet fuel is supplied through the pipe 2 and pilot jet fuel through the pipe 4.