baber/WOPTO huggingface dataset:
Patent GB-1169456-A (GB)
Title: Grid for Power Tubes.
IPC: H01J1/48
Filed: 1967-01-11
Abstract: 1,169,456. Electrode materials. TESLA NARODNI PODNIK. Jan.11, 1967 [Aug. 17, 1966] No. 1545/67. Heading C7A. [Also in Division H1] The active members of a grid, e.g. for short wave power tubes, are made from a non-metallic material comprising at least one carbide of a metal of the Groups IVb, Vb or VIb of the periodic system of elements defined in the book "Lehrbuch der anorganischen Chemie" (Textbook of inorganic Chemistry) by H. Remi, e.g. molybdenum or tungsten, consisting of originally added graphite which is chemically bound in with the metal to form a carbide and a surplus amount of free graphite which is regularly dispersed throughout the entire body of the carbide. The excess graphite may comprise between 0À3 and 40% by weight of the graphite bound in the carbide. An electro-plated layer of rhodium, gold or nickel or combinations thereof may be provided at the ends of the rodshaped active grid members to facilitate their soldering to supports.
Patent GB-265361-A (GB)
Title: Improvements in or relating to variable-stroke pumps
IPC: F16H21/26
Filed: 1926-01-19
Abstract: 265,361. Hodgson A. E., and Lamplough, F. Jan. 19, 1926. Crank and lever-actuated pumps; stroke, varying-Variable-stroke mechanism for operating a pump comprises a crankshaft 28 or the like conected by two parallel plates 20 and driven through gear wheels 19, 32 by a shaft mounted in the pump casing 10. The small end 30 of the connecting-rod 29 driven by the shaft is pivoted to links 32 swinging on pins 33 mounted in the plates 20, and is connected by a link 34 to the end of a lever 35 which swings on a pin 36 and is connected at the other end to the pump plungers 37. The plates 20 are angularly adjustable round the axis of the driving wheel 19 by hand or automatic means to vary the angle between the path of the pin 30 and the path of the lower end of the lever 35 and thereby vary the throw of the lever between zero and a maximum. When the pins 33 are coaxial with the lower end of the lever, the latter does not move, and when the plates 20 are adjusted to bring the links 29, 34 into alignment, the movement is a maximum. The lever 35 may drive two pump plungers, and a duplicate mechanism may drive another pin. The plates 20 may be adjusted by the delivery pressure of the pumps.
Patent GB-565215-A (GB)
Title: Improvements in or relating to the electrical measuring of temperature
IPC: G08B21/00
Filed: 1943-01-29
Abstract: 565,215. Automatic control. STEGHART, F. L. Jan. 29, 1943, No. 1549. [Class 38 (iv)] [Also in Groups VI, XXXVIII and XL] In a system in which it is undesirable to mount a resistance-thermometer at the place of which the temperature is to be measured, it is mounted at a convenient spot which normally has the same temperature, and its effect is assisted or opposed for a period, when the temperature changes, by that of a thermo-battery with its junctions situated respectively at the place of which the temperature is to be measured and adjacent the resistancethermometer. As shown in Fig. 1, milk being pasteurized flows along a pipe 1 containing one set of junctions of a thermo-battery, the other set of junctions and a resistance thermometer which forms one arm of a Wheatstone bridge being thermally associated with the exterior of the pipe by means of a mass 61 of conducting material surrounded by a glasswool &c. 13. In normal conditions, both sets of junctions are at the same temperature and the condition of an indicating relay 24 is governed entirely by the extent of unbalance of the bridge, the output of which is applied to a galvanometer 17 which reflects more or less light on a photoelectric cell 20 forming part of a potential divider, the other half of which is constituted by a condenser 21 and the output of which is applied to a gas-filled thermionic tube 22 arranged similarly to that described in Specification 537,784, [Group XL]. The anode current of this tube which controls the indicating relay 24, flows in a resistance 18 in the galvanometer circuit to produce a voltage drop which tends to return the galvanometer to zero. When the temperature exceeds a given value, the relay 24 lights a lamp. When the temperature falls below another value, relay 24 energizes a relay 29 which locks up and operates a valve 28 to divert the milk in readiness for its repasteurization. When the temperature of the milk changes, the output of the bridge is assisted or opposed by that of the thermobattery so that the indicator relay responds immediately to the change in temperature. Relays 16, 15 respectively cause the substitution of a standard cell for the combined thermometer voltage and the shunting of the thermobattery. In a modification. Fig. 2 (not shown), one set of junctions is in the milk pipe and the other set and the resistance thermometer are thermally associated with a pipe carrying the heating water. This arrangement also includes a device for delaying the restoration of the milk-diverting valve for a period. A thermostat causes the shunting of the thermometer outputs if the milk temperature falls to an abnormal extent to avoid damage to the galvanometer 17. The system may control the temperature of the hot water as described in Specification 542,962.
Patent GB-166201-A (GB)
Title: Improvements in india-rubber compositions
IPC: C08L7/00
Filed: 1919-01-22
Abstract: 166,201. Nixon, A. Jan. 22, 1919. Plastic compositions containing vulcanized fibre.-So-called "vulcanized fibre " in a ground or shredded &c. state is incorporated with caoutchouc or caoutchouc-like substances, with or without the addition of other substances. In an example, 20 parts of ground vulcanized fibre are kneaded with 10 parts of rubber and sufficient sulphur for vulcanization. The dough may be rolled into sheets and vulcanized. The composition is stated to be suitable for the soles and heels of boots &c., packing-rings and washers, electric insulation &c. Reference has been directed by the Comptroller to Specifications 4944/12 and 7864/14.
Patent GB-537524-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/08
Filed: 1940-01-26
Abstract: 537,524. Retractive switches. FOUNTAIN, Ltd., G. R. FOUNTAIN, G. R. SNELL, A. E. C., and HOULGATE, H. J. Jan. 26, 1940, No. 1618. Addition to 507,183, [Group XXXIX]. [Class 38 (v)] [Also in Groups XXXIX anc XXXVI] A push-button switch has leaf spring contacts 24 which wipe the fixed contacts when the push-button 4 is depressed.
Patent GB-737491-A (GB)
Title: Improvements in and relating to lubricants
IPC: C10M131/12
Filed: 1953-01-20
Abstract: Methyl tetrachlorolaurate is prepared by reacting methyl undecylenate with CCl4 in the presence of benzoyl peroxide. By saponification of methyl tetrachlorolaurate with cold KOH the salt (A) Cl3C - CH = CH(CH2)8 - CO2K is formed and with hot KOH the salt (B) Cl2C = CH - CH = CH - (CH2)7CO2K is formed.  Pentachlorolauric and hexachlorolauric acids respectively may be prepared from A and B by acidification and treatment with chlorine.  Trichlorolauric acid may be prepared (1) by acidification and hydrogenation of A or B above, (2) by reacting undecylenic acid or an ester thereof with CHCl3. Tetrachlorolauric acid may be prepared (1) by treating A above with HCl gas; (2) by treating undecylenic acid with CCl4 in the presence of benzoyl peroxide.ALSO:A lubricant consists of a mineral oil containing a fatty acid containing at least 8 carbon atoms halogenated at the end of the chain by 3 halogen atoms.  Halogenated fatty acids specified are tri-, tetra-, penta- and hexa-chlorolauric acids.  An organic sulphide, e.g. dibenzyl disulphide, may be added to the composition.
Patent GB-1465432-A (GB)
Title: Apparatus for securing an aircraft on a platform
IPC: B64F1/12
Filed: 1975-01-15
Abstract: 1465432 Anchoring aircraft DORNIER GmbH 15 Jan 1975 [7 March 1974] 1722/75 Heading B7G Apparatus for anchoring an aircraft, in particular a tethered helicopter, to a landing platform comprises a series of clamping members arranged about the platform and mounted for movement inwards and outwards relative to the platform and also upwards and downwards relative to the platform whereby the clamping members are moved inwardly to engage the aircraft and position it on the platform and then moved downwardly to anchor the aircraft to the platform. A platform 15 is resiliently supported on compression springs 16 above a rotatable disc 1 which is formed on its periphery with cam faces 2 and associated recesses 2<SP>1</SP> to receive rollers 5 each mounted on one arm of a pivoted bellcrank 4, the other arm carrying a vertical post 6 on which is slidably mounted a sleeve formed with a clamp 7 and urged upwardly by a spring 14. A projection 13 on each clamp sleeve is engaged by a roller 11<SP>1</SP> on a bellcrank 10 urged clockwise in the figure by a compression spring 12 so that a roller 11 is held in contact with the surface of disc 1. After an aircraft has landed on platform 15 a jack 9 is actuated to rotate disc 1 so that rollers 5 run on cams 2 to swing posts 6 inwardly into contact with an annular undercarriage member on the aircraft to centralize it on the platform and rollers 11 are engaged by the cams to urge the clamp sleeves downwardly so that clamps 7 anchor the undercarriage member on to the platform.
Patent GB-363526-A (GB)
Title: Manufacture of shaped calcium oxide
IPC: C04B2/00
Filed: 1931-01-19
Abstract: Moulded calcium oxide is prepared by pressing substantially dry calcium oxide powder or calcium hydroxide powder without adding any binding agent.  Thus 1000 kilos. of anhydrous lime powder are calcined at a temperature of 500-1000 DEG  C. and the 750 kilos. of pulverized calcium oxide thus obtained are moulded in an extrusion or hydraulic press under a pressure of 700-1000 kilos. per sq. cm. at a temperature of 20-400 DEG  C.  Alternatively the lime powder may be first pressed under a pressure of 700-1200 kilos. per sq. cm. and then calcined in a shaft furnace.ALSO:Moulded calcium oxide is prepared by pressing substantially dry calcium oxide powder or calcium hydroxide powder without adding any binding agent.  Thus 1000 kilos. of anhydrous lime powder are calcined at a temperature of 500-1000 DEG  C. and the 750 kilos. of pulverized calcium oxide thus obtained are moulded in an extrusion or hydraulic press under a pressure of 700-1000 kilos. per sq. cm. at a temperature of 20-400 DEG  C.  Alternatively the lime powder may be first pressed under a pressure of 700-1200 kilos. per sq. cm. and then calcined in a shaft furnace.
Patent GB-758945-A (GB)
Title: Improved means of mounting electrical connectors
Inventor: WILLIAMS ARTHUR HOWARTH
IPC: H01H85/20
Filed: 1954-01-21
Abstract: 758,945. Two-part couplings fusible cutouts. FALK, STADELMANN & CO., Ltd. Jan. 21, 1955 [Jan. 21, 1954], No. 1778/54. Class 38 (1). A blade contact 3c having a U-shaped portion 3 for receiving a cap of a cartridge fuse is mounted in the channel-shaped body 1 of a fuse carrier by attaching to the base of the portion 3, a blade-spring 5 of greater width than the portion 3 and the recess in the body. On insertion of the contact into the recess, the spring is bowed and the ends bite into the walls of the recess to check withdrawal of the contact. The ends are cut-away centrally to form prongs.
Patent GB-309641-A (GB)
Title: Improvements in or relating to burners particularly for furnaces fired with pulverised fuel
IPC: F23D1/00
Filed: 1928-01-19
Abstract: 309,641. Clarke, Chapman, &. Co., Ltd., and Woodeson, W. A. Jan. 19, 1928. Pulverulent-fuels, spray, and atmospheric gas burners.-In a gaseous, liquid, colloidal, or pulverized fuel burner of the type in which a casing surrounds the delivery end of the fuel supply pipe and air enters between the pipe and the casing prior to encountering velocity retarding means producing an intimate mixture of the fuel and air, examples of which are described in Specification 278,168, a series of inclined holes or ducts are formed at or near the extreme end of the casing to admit air to accelerate combustion. Figs. 1 and 5 show pulverized fuel burners in which end of the casing 1 which surrounds the fuel supply pipe 19 and is fitted with a deflector 10 is formed with inclined holes 2 admitting air from a space 4 formed between the casing 1 and another casing 5. The space 4 communicates with the hood 15 through which air is supplied to the casing 1. A slide 18 may be provided for regulating the amount of air passing to the space 4 and a hit-or-miss device 17 is provided for regulating the air passing direct to the casing 1. The deflector 10 may be provided with hollow vanes conducting air from the space 4 and delivering it either forwardly into the mixture or through radial holes 12. Air may also be supplied to the fuel mixture through upwardly directed holes 20 in the casing so as to lift the stream and prevent spilling.
Patent GB-714620-A (GB)
Title: Improvements relating to methods of filtering and filtering apparatus
IPC: B01D39/16
Filed: 1952-01-23
Abstract: 714,620. Filters. FARBENFABRIKEN BAYER. Jan. 23, 1952 [Feb. 10, 1951], No. 1918/52. Class 46. [Also in Groups II and XXX] Liquid to be filtered is caused to flow along a surface which is substantially impermeable thereto and is provided with multiple upright filaments which retain in their interstices the material to be filtered out. In the embodiment of Fig. 1 liquid is supplied at 8 to an inclined and upwardly-moving portion of a conveyer belt 1 preferably of rubber having its outer surface provided with hairs or bristles 5. Filtrate runs down into a funnel 9 and solids enmeshed in the bristles are removed by vibration of a horizontal portion 10 of the belt, by electric hammers 11 over a vibrating discharge shoot 12. A thin rubber rim 6 is provided on each edge of the belt. In Fig. 3 liquid to be filtered is fed to a plate 15 and runs down a conical surface 14, mud being retained by bristles 13 thereon. Filtrate is collected in a gutter 16. When the bristles 13 are clogged the surface 14 is rotated by a motor 18 whereupon themud is thrown onto the walls of the casing 19 and runs down into a gutter 20. In Fig. 4 concave discs 22 having hairy filtering surfaces 21 are rotated so that liquid fed to them from apertures 26 in a feed pipe 23 is filtered by centrifugal action, filtrate being received in a gutter 29. For cleaning, the apparatus is inverted about bearings 32, 33 and the discs 22 are slowly rotated and simultaneously vibrated by cams 35 running on a toothed disc 36. Mud falls onto a conical surface 37 of the casing 27 whence it falls into a discharge funnel 38. In Fig. 4 the hairs or bristles are preferably arranged in concentric rings around the vertical axis. In Fig. 1 the bristles are attached to the belt by strips arranged transversely of the direction of travel of the belt.
Patent GB-1033332-A (GB)
Title: Improvements in control circuit for telephone recording apparatus
IPC: H04M1/65
Filed: 1964-01-16
Abstract: 1,033,332. Telephone answering machines; automatic gain control. ROBOSONICS Inc. Jan. 16, 1964 [Jan. 31, 1963], No. 2063/64. Headings H4K and H4R. An automatic gain control circuit for the input of an amplifier in a telephone message recording apparatus comprises a potentiometer, formed by a resistor 8 and the collector emitter impedance of transistor 1, connected in the input circuit of the amplifier 9, the attenuation of the potentiometer being varied by varying the base potential of transistor 1 which is fed from the output of amplifier 9 via rectifier 10 and filter network 11, 12. The transistor 1 is operated with no D.C. voltage on its collector and at very low signal levels, e.g. up to 15 millivolts, so that it works over the linear portion of its collector current-collector voltage characteristic.
Patent GB-695535-A (GB)
Title: Improvements in spring suspension devices
IPC: B60G11/15
Filed: 1952-01-25
Abstract: 695,535. Spring suspensions ; springs. NYSTROM, K. G. Jan. 25, 1952 [Jan. 27, 1951; Jan. 18, 1952], No. 2165/52. Classes 108 (ii) and 108 (iii). [Also in Group XXXI] In a spring suspension device for the individual wheels of single or multiple axle road vehicles, comprising a rearwardly-directed crank which directly or indirectly supports a wheel hub spindle, the crank-shaft of the crank being substantially parallel with the spindle and journalled for rotation in the vehicle, and a number of supporting and recoil springs adapted to influence the swinging movement of the crank arm, the springs comprise helical torsional springs threaded over the crank-shaft and the or each supporting spring and the or each recoil spring are initially tensioned when the crank takes up its position of rest corresponding to an unloaded road wheel. In the arrangement shown in Fig. 1, in which a crank arm 21 is formed with a wheel carrying spindle 20 and a crank-shaft 22, the latter is mounted in bearings 24 and 25 in a housing 23, the bearing 24 being secured in an annular recess in the housing by screws 26 and the bearing 25 consisting of an inner ring 27 which is locked within an outer ring 28 secured to the housing by screws 29. One end of a main spring 33 engages in a radially-extending bore in a spring fastening secured to the shaft 22 adjacent the bearing 24 and the other end of the spring engages a hole in the outer ring 28. The ends of a recoil spring 34 disposed within the spring 33 and wound in the opposite sense to the latter, engages respectively in an axially extending bore 37 of the spring fastening and in a circular slot in the ring 27. The springs 33 and 34 are initially tensioned by relative rotation of the rings 27 and 28. The housing 23 is disposed in an axle tube 41 carried on the vehicle chassis such that the arm 21 is directed downwardly under noload on the vehicle. In the arrangement according to Fig. 4 (not shown), a spring device as above is secured each in one end of an axle tube of a single-axle trailer, a draw-bar being secured to the axle tube. In the arrangement according to Fig. 8, the springs 33 and 34 are of the same diameter, the former engaging at one end in the bearing 24 and at the other end in a radially-extending hole in a fastener 45 secured to the shaft 22. The recoil spring similarly engages the fastener 45 and at its other end engages in a slot in a bearing 48 secured to the housing 23. The springs may be initially tensioned by relative rotation of the bearings 24 and 28. The invention is applicable to a two-axle vehicle (Figs. 13 and 14, not shown), in which the axles are mounted on a pair of longitudinally extending rocker beams pivoted to the vehicle chassis by a transversely extending rocker shaft. In the application to an eightwheeled trailer (see Group XXXI), the two rear pairs of wheels are mounted on a sub-frame preferably detachably united to the trailer chassis, and all the wheels are suspended by a suspension device as described above.
Patent GB-990326-A (GB)
Title: Improvements in and relating to shaving heads for dry-shaving apparatus
IPC: B26B19/42
Filed: 1964-01-17
Abstract: 990,326. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 17, 1964 [Jan. 21, 1963], No. 2179/64. Heading B4B. In a shaving head of the kind comprising a movable cutter co-operating with an apertured shear plate movable parallel to means forming a rim for stretching the user's skin, the rim-forming means also have a portion which extends over the shear plate and has a plurality of apertures through which the user's skin can protrude into contact with the shear plate. As shown, a rotary cutter 2 co-operates with an oscillatable slotted shear plate 1 and these parts are covered by a grid 4 attached to the shaver housing 5, the grid having a skinstretching rim 8 and a plurality of bars 6 to form apertures in the grid. Alternatively, the shaving head may have a reciprocable cylindrical cutter co-operating with an oscillatable shear plate which has the form of a cylinder or part of a cylinder.
Patent GB-562609-A (GB)
Title: Improved production of alcohols and/or esters
IPC: C07C29/17
Filed: 1942-02-18
Abstract: Saturated alcohols and esters are obtained by hydrogenating without a catalyst a saturated carboxylate of lead, cadmium or copper, or an unsaturated carboxylate of copper.  When a hydroxy-carboxylate is used, the product is a dihydric alcohol or its ester.  Carboxylates of several metals, at least one of which is lead cadmium or copper, may be used and result in different yields and different relative proportions of alcohols and esters. The other metals mentioned are chromium, cobalt, nickel, zinc, manganese and iron.  Examples describe the reduction with hydrogen of the lead salts of coconut oil acids, copper oleate and lead acetate.  Reference has been directed by the Comptroller to Specification 484,995.
Patent GB-1163812-A (GB)
Title: A Process and Apparatus for Producing Solid Explosives and Propellants from Humid Initial Mixtures
IPC: F26B7/00
Filed: 1967-01-16
Abstract: 1,163,812. Drying explosives. WERNER & PFLEIDERER. 16 Jan., 1967 [25 Jan., 1966], No. 2196/67. Heading F4G. [Also in Division C1] Solid explosives and propellants are dried by passage through a series of drying chambers, each of which is associated with an expansion space of progressively increasing volume, because of the greater risk of ignition as the material is dried. The drying chambers may comprise interengaging pairs of conveyer screws or worms in a casing and the temperature in each stage may be regulated by heating or cooling the casing or screws. Vapour may be removed from the expansion spaces by the application of vacuum. Quenching sprays may operate if the temperature rises too high. In a preliminary stage, liquid may be removed by filtering or pressing and in a final stage, the explosive may be granulated.
Patent GB-811405-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: KIRKPATRICK ALAN ROBERT
IPC: G21C5/14
Filed: 1957-01-22
Abstract: 811,405. Nuclear reactors. PARSONS & CO. Ltd., C. A. Nov. 27, 1957 [Jan. 22, 1957], No. 2313/57. Class 39(4). In a natural uranium graphite moderated nuclear reactor the charging and discharging means comprises a series of tubes, each tube having a fixed portion penetrating the reactor shell and axially aligned with a fuel channel and a movable portion capable of being moved in any direction away from the axis of the fixed portion to a position in axial alignment with other channels, and the channels are arranged in a series of parallel equidistant rows in two perpendicular directions, the pitch of the channels being the same in each direction ; the arrangement is characterised in that the fixed tubes of the charging means are located with their axes forming the apices of isosceles triangles of base 8 times the pitch of the channels and side 4#2 times the pitch, the movable part of the charging means being capable of moving a distance in a plane at right angles to the axes of the channels equal to #10 times the pitch, those channels located outside the sweep of the movable tube being used to house means for controlling the neutron flux. Fig. 1 shows the charging means which comprise fixed tubes 4a, which pass through the pressure vessel and radiation shield, and movable member 4b. Fig. 2 shows a plan view of the top of the reactor. The charging means are centred above channels 7b, and with the dimensions given each can cover an area shown by a circle 4c. Thus each charging means can reach 37 fuel channels, 12 of which are also accessible through adjacent charging tubes. Channels 7a are outside the reach of any charging tubes and are used for control rods, so that the ratio of control rod channels to fuel channels is 1 : 31.
Patent GB-304697-A (GB)
Title: New or improved process for the production of dried superphosphate
IPC: C05B19/02
Filed: 1929-01-23
Abstract: 304,697. Chemische Industrie Akt.- Ges., and Meyer, H. Jan. 24, 1928, [Convention date]. Superphosphate is stored until its calcium sulphate content has separated as CaSO4.2H2O and then dried at a temperature below that at which the water-soluble phosphoric acid is converted' to the water-insoluble form say at 40-70‹ C. By this means a single drying will reduce the water content of the superphosphate to 5-6 per cent.