baber/WOPTO huggingface dataset:
Patent GB-554588-A (GB)
Title: Blocking tube oscillator for television
IPC: H03K3/16
Filed: 1942-06-19
Abstract: 554,588. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd. June 19, 1942, No. 8437. Convention date, July 15. 1941. [Class 40 (v)] A blocking oscillator adapted to be synchronized by bursts of high frequency energy, comprises means connected to the output of the oscillator and adapted to be controlled thereby, for producing waves of saw-tooth form. In Fig. 1 a blocking oscillator comprises a triode 13 in which feed back from the anode to the grid is effected through an untuned winding 9 coupled to a high-frequency winding 10 tuned by condenser 11 to the carrier frequency of the bursts of energy which form the synchronizing signals for triggering the oscillator. The period of the oscillator is determined by elements 15, 16, and is slightly greater than that of synchronizing pulses which are applied at 1, 2 through valve 4 and are fed through winding 7 to winding 10 to trigger the oscillator. The output is applied to condenser 20 and adjustable resistances 23, 24 to give a saw tooth output in line 25. In a modification, Fig. 6 (not shown) the blocking oscillator comprises one section of a double triode connected as a cathode follower. The synchronizing pulses are applied to the cathode from which point are taken the oscillator pulses which are applied to the grid of the other triode section which servies as the discharge means for the condenser giving the saw-tooth oscillations. Specifications 542,258 and 542,259 are referred to.
Patent GB-1469366-A (GB)
Title: Spark erosion machine tool
IPC: B23H11/00
Filed: 1975-02-28
Abstract: 1469366 Spark-erosion AEG-ELOTHERM GmbH 28 Feb 1975 [3 April 1974] 8465/75 Heading B3V A spark erosion machine comprises a liquid dielectric tank 22 of which at least one side portion is removable to allow access to a workpiece and a pedestal 3, 3A having an electrode carrying arm 4A which is pivotable into and out of a position overhanging the open top of the tank 22. The arm 4A carries a reciprocable plate 10 for mounting the electrode and is attached to a part 3A of the pedestal which is pivotable about a hinge 5 by an hydraulic motor 6 to enable a workpiece to be loaded into the tank 22. The arm 4A may also be pivotable about a vertical axis. The tank may be formed by integral sides 22-25 fitting into slots in the upper 18 of a pair of cross tables 13, 18 movable perpendicular to each other by motors 14, 19. The side 25 of the tank is attached to a hinge 26 which is movable by a motor 31 along a vertical column 28 to enable the tank sides 22-25 to clear the table 18. The tank may be pivoted by a motor 30 about the hinge 26 into an upended position 50 and pivoted about the column 28 by a motor 32 into a retracted position 51. The sides 22-25 of the tank may alternatively be separate and removable from the table 18 by hand.
Patent GB-1328476-A (GB)
Title: Photonitrosation of normal paraffins
IPC: C10G73/38
Filed: 1972-02-24
Abstract: 1328476 Oximes TEXACO DEVELOPMENT CORP 24 Feb 1972 [6 May 1971] 8490/72 Heading C2C N-paraffin oximes are prepared by reacting a n-paraffin (14-50 C) at from 30‹ to 140‹ F.) with a nitrosating agent in the presence of a chloro- or fluorohydrocarbon organic solvent under the influence of light of wavelength 200 to 700 millimicrons. Hydrocarbons up to npentacentane and those obtained from urea dewaxing of middle distillates and from refined wax are mentioned, and nitrosyl halides, sulphuric acid and nitric oxide and chlorine may be the nitrosating agents. Carbon tetrachloride, chloroform, tetrachlorethane, pentachlorethane and perfluorocarbons may be the solvents and a light emission of from 550 to 650 millimicrons from a sodium lamp is preferred. The oxime may be recovered by contacting with concentrated polybasic acid, sulphuric or phosphonic, and neutralizing the recovered salt followed by separating and recovering the oximes. Examples describe the reaction of acid treated C 19-33  refined wax.
Patent GB-1475978-A (GB)
Title: Fabric composites
IPC: D06N7/00
Filed: 1976-03-03
Abstract: 1475978 Pile fabrics W W SEWARD 3 March 1976 08512/76 Heading D1K [Also in Division B5] A tufted carpet (Fig. 9) contains fibrous pile tufts 28 extending through and anchored to a composite including a densified batt 29, a metal foil 30 and a base fabric 31 covered by a layer 32 of displaced fibres, a latex backing 33 and a supplemental backing 34 e.g. of foamed rubber, foamed flexible polyurethane or foamed polyvinylchloride. The composite is formed (Fig. 1) by applying a continuous metal foil 12 over a web of base fabric 11, applying a non-woven batt 13 of fibres over the foil and needle punching the assembly with barbed needles 14, 15 by successively penetrating first the batt, then the foil and finally the base to force fibres from the batt back and forth through the foil and through the fabric base, the needle punching operating to densify the batt and form a plurality of mechanical interlocks to securely lock the base, the foil and the batt together, while maintaining the foil in a continuous condition to provide continuous heat conductive paths to conduct heat away from a point of application to the composite for distribution throughout the composite. The batt, and the base fabric, which may be woven or non-woven, may be in the form of a scrim or of an aligned network of filaments may be composed of natural or synthetic fibres e.g. of jute, cotton, wool, rayon, nylon, polypropylene, polyester, acrylic polymer or modified acrylic polymer or a mixture thereof. The metal foil may be of aluminium, copper or magnesium.
Patent GB-1467512-A (GB)
Title: Treatment of metallic surfaces
IPC: C12N1/20
Filed: 1974-02-25
Abstract: 1467512 Cleaning metals using bacteria - KANSAI PAINT CO Ltd 25 Feb 1974 [1 March 1973] 8525/74 Headings C6F and C7E A metallic surface is treated by contacting it with a culture of chemoautotrophic ferrobacillus aerobically at 20-45‹C, the bacillus deriving carbon from CO 2 , nitrogen from inorganic compounds, and energy from the oxidation energy of iron and/or sulphur. Ferrobacillus ferrooxidans and/or sulphooxidans are preferred. Metals which may be treated are iron, metal containing iron and/ or sulphur and metals soluble in sulphuric acid selected from aluminium, zinc, tin, manganese, nickel or chromium or an alloy thereof in the presence of sulphur or a sulphur compound.
Patent GB-652759-A (GB)
Title: Double winding for horological movements
IPC: G04B7/00
Filed: 1948-03-23
Abstract: 652,759. Timepieces. FELSA SOC. ANON. March 23, 1948, No. 8576. Convention date, July 23, 1947. [Class 139] A double winding mechanism for the mainspring of horological movements includes two discs fixed to the barrel hub and each carrying a pawl, which pawls engage internal teeth of winding wheels loosely rotating co-axially to the barrel axis, the pawls, when stressed, being supported by the tops of the co-operating ring of teeth and thus being prevented from buckling. The barrel arbor 2 carries two discs 5, 6, Fig. 1, which have arcuate resilient pawls 9 and 10, Fig. 2, which engage respectively at their outer ends 11, 12, internal teeth in gear wheels 13 and 15 rotatable about the arbor 2. The gear wheels 13 and 15 engage pinions 18 and 17 respectively, and are rotated thereby to wind the mainspring. The pinions 17, 18 are associated with different winding mechanisms.
Patent GB-1019333-A (GB)
Title: Process for the preparation of a nitrosating agent
IPC: C01B21/086
Filed: 1963-03-04
Abstract: A nitrosating acid, i.e. a solution of nitrosylsulphuric acid in sulphuric acid, is prepared by absorbing nitrous gases, i.e. NO and NO2, in a solution of nitrosylsulphuric acid in sulphuric acid, to which solution, SO3 either in the form of gaseous SO3 and water and/or sulphuric acid, or in the form of oleum, is supplied for replenishing or maintaining the sulphuric acid content of said solution.  The process may be a batch or continuous process.  The degree of oxidation of the nitrous gases should preferably be at least 0.5, i.e. the gases preferably contain an amount of NO which is at least equal to the amount of NO2.  The temperature of the absorbent acid is preferably maintained between 0 DEG  and 40 DEG  C. When the process is carried out continuously by means of a circulating amount of absorbent acid, the composition of the absorbent acid should be approximately equal to that of the nitrosating acid to be prepared. The ratio between the components NOHSO4, H2SO4 and SO3 can be widely varied, and is determined only by the requirement that the absorbent acid must be liquid in the temperature range in which the absorption takes place. In Fig. 1 (not shown), the absorbent acid, i.e. nitrosylsulphuric acid dissolved in sulphuric acid, circulates through the absorption column 1, via cooler 2, pump 3 and conduit 4.  Nitrous gases enter through 5 and non-absorbed gases escape through 6.  Part of the circulating absorbent acid passes to mixing vessel 9, via conduit 7.  Oleum passes to vessel 9 from vessel 10 via conduit 11.  Cooling spiral 18 maintains a uniform temperature in vessel 9.  Part of the contents of vessel 9 are fed to column 1 via pump 13 and conduit 14, the remainder being collected as produced nitrosating acid in reservoir 19 via conduit 15.  Valves 8, 16 and 17 control the amounts of liquid passing through conduits 7, 11 and 15.  This ensures that a solution of nitrosyl sulphuric acid in free SO3-containing sulphuric acid is passed through column 1.  Fig. 2 (not shown) concerns a modification of the process employed in Fig. 1 wherein no oleum is employed, SO3-containing contact gas being fed into a second absorption column, which takes over the function of the mixing vessel 9 in Fig. 1.
Patent GB-1453639-A (GB)
Title: Carriage transferring apparatus
IPC: B26D5/02
Filed: 1974-02-26
Abstract: 1453639 Cutting apparatus A AHLSTROM OSAKEYHTIO 26 Feb 1974 [2 March 1973] 8676/74 Heading B4B An apparatus for, e.g. cutting longitudinally a web of paper comprises a number of carriages 5 for supporting, e.g. cutting blades, the carriages being movable to predetermined positions on a guide 1 by means of an elongate reciprocably-mounted transfer member 20, each carriage being provided with a locking device 7, 33 adapted to either lock the carriage to the transfer member for movement therewith or, to the guide after the carriage has been moved to its predetermined position. As shown in Fig. 3, a pair of elongate members 20, 21 are connected at their ends to flexible members 22, e.g. chains or cables which pass over pulleys 23, one pulley being rotatable by a motor 24, the carriage 5 being locked to one or other of the members 20, 21 depending upon the required direction of movement of the carriage on the guide. The locking device includes a pin 7, Fig. 7, mounted on a piston which is slidable within a second piston 33, the pin being normally urged by a spring 27 into engagement with a selected one of a number of notches (30), Fig. 5 (not shown). The piston 33 is provided with a friction lining 28 such that when the pin 7 is released to allow the member 20 to move, the spring 27 urges the lining into contact with the guide 1 to prevent the movement of the carriage. In operation, when it is required to re-position a carriage along the guide 1, a position selector device 14 is moved along a rail 3 on the guide until a pointer 17 on the selector aligns with a desired mark on a scale 4; the selector is locked to the rail by a handle 15, Fig. 4. The motor 24 is then energized thereby moving the transfer bar such that when the pin 7 is engaging in a notch, the carriage is moved at a fast speed until an abutment thereon actuates a switch 18b or 18c on the position selector device 14; the carriage then slows down until a further switch 18a is actuated thereby instantly stopping the motor and, thereby, the carriage at its selected position. Limit switches 25, 26, Fig. 3, are provided so that the direction of travel of the respective transfer member may be reversed. In a modification, Fig. 5 (not shown), two pairs of carriages are each connected to a respective transfer bar 20, so that opposite carriages forming a pair may be moved together when a common drive motor 24 is actuated; a slipping clutch (31) is provided.
Patent GB-416980-A (GB)
Title: Improvements in or relating to apparatus for playing a board game
IPC: A63D13/00
Filed: 1933-03-23
Abstract: 416,980. Coin-freed game apparatus. LOGAN, H. T., Fairview Bungalow, Shepperton-on-Thames. March 23, 1933, Nos. 8714 and 17612. [Class 27.] A coin-freed apparatus for playing a board game has a surface provided with a number of scoring places through which the ball may pass to travel over other parts of the playing surface, combined with score-indicating means, ball-actuated members at each scoring place and operative connections between these members and the score-indicating means whereby the latter is operated to indicate the score. The balls are projected up a side channel 11 by means of a spring plunger 13 and after passing a pivoted flap 91 roll down the board and are directed by pins 14 over electric contacts 15 at the scoring places, finally coming to rest in channels 35 or passing through a hole 36 leading to a ball reservoir. A stop member 92 prevents the balls from passing round the outer edge of the board. Scoring values (plus and minus) are allocated to the electric contacts and as the balls pass over the contacts the corresponding values are added to, or subtracted from the score and the total is indicated automatically by means of a pointer 17 co-operating with a dial on the glass cover. The pointer may be zeroized by hand or as described below by connection with coin-freeing mechanism. The balls are raised from a reservoir 40 to a position in front of the firing plunger by means of an elevator 42 pivoted on a pin 43 and actuated by a pin-and-slot connection with a detent lever 54 which is in turn actuated by a collar 55 on the firing plunger as this is drawn back. The balls accumulated in the channels 35, Fig. 1, are allowed to drop into the reservoir by first inserting a coin into a slide 58 and then pressing in the slide so as to displace an obstructing member 46, Fig. 5, from beneath the balls. A pivoted member 161 loosely connected to the obstructing member '46 prevents the balls from passing to the elevating mechanism until the slide has been returned to its original position after which the game may again be played merely by actuation of the plunger 13. For zeroizing the pointer under the control of the coin-freed mechanism, the movement of the ball-obstructing member 46 is adapted to rotate, in opposite directions, a pair of gear wheels each carrying an arm arranged beneath the indicating pointer. The arms in making a partial rotation in opposite directions engage a radial projection on the pointer spindle and restore the pointer to its zero position.
Patent GB-328741-A (GB)
Title: Adhesive plaster strips
IPC: A61B17/08
Filed: 1929-03-18
Abstract: 328,741. Sarason, D. March 18, 1929. Plasters and adhesive bandages.-The adjacent edges of two planter strips a, a<1> adapted to be laced together contain bars b of nietal, celluloid, or other material, formed with outwardly bent hooks f. Before forming the hooks as by stamping &c., the bar b is wrapped in the edge of the strip so that hooks stamped out subsequently are covered by the material of the strip. To apply the bandage, two strips are placed as shown, the outside edges stuck down, and the inner edges with the hooks are turned back. The wound which lies between the strips is covered with dressing material over which the hook portions of the two strips are now folded and laced together.
Patent GB-141890-A (GB)
Title: An improved bee hive
IPC: A01K47/00
Filed: 1919-04-08
Abstract: 141,890. Johnston, T. April 8, 1919. Beehives. - The brood-chamber of a hive, which is protected from cold by a lining or separate internal shell of straw or the like, is formed with a convex floor 4 of straw &c. shaped as an inverted dome or semi-cylinder. The walls may be curved in one or both directions to produce an internal compartment of spherical or rounded shape. The inner shell 2 may be entirely of straw twisted or sewn together; or two walls may be of straw and two of wood.
Patent GB-1276486-A (GB)
Title: Improvements in or relating to adjustable hospital equipment
Inventor: WRIGHT HOWARD STANLEY
IPC: A47C19/04
Filed: 1971-04-06
Abstract: 1276486 Bedstead adjustments; tables H S WRIGHT 6 April 1971 8855/71 Headings A4H and A4J A bed, overbed table, or other adjustable piece of hospital equipment has adjusting means comprising two vertical racks, connected to opposite sides of the adjustable body, engaged by pinions fixed to a common shaft, so that there is no force tending to twist the body, and a latch engaging one of the pinions to hold the body in an adjusted position. In the form shown, a bed frame 1 has connected to it two guide-members 12 in which slide racks 11 attached to the base 13 of the bedstead. The racks are formed of squaresection tube with indentations or perforations with which mesh pinions 16 fixed to a common shaft 17 journalled in the members 12. One of the members 12 carries a spring latch 18 with a hole arranged to engage two teeth of the pinion 16 to hold the frame 10 in an adjusted position; a pivoted control lever 23 can be actuated by a cable 25 to move the latch out of engagement with the pinion to allow adjustment of the frame. The latch and pinion teeth may be so shaped as to provide a ratchet action for upward movement of the frame so that release of the latch is not required for this movement. Similar adjusting mechanisms may be applied to drop sides of a bed Fig. 5 (not shown) or to height adjustment of an overbed table; this equipment may be additional to that shown in Fig. 1.
Patent GB-1359593-A (GB)
Title: Driving circuit arrangements for passive display devices
IPC: G04G9/00
Filed: 1972-02-25
Abstract: 1359593 D.C.-D.C. converters SUWA SEIKOSHA KK 25 Feb 1972 [27 Feb 1971] 8868/72 Heading H2F [Also in Divisions G3 and G5] In an electronic timepiece having passive numeric time indication, e.g. liquid crystal, the potential supply to each electrode of the time display device is controlled by a respective twoway switch whereby, in accordance with a timeresponsive electrode selecting command signal, for each digit of the time indication, the potential difference between a common electrode and each electrode of a respective 7-electrode numeric display device is either sufficient to excite the liquid crystal therebetween, or is below the threshold voltage of the liquid crystal. Each two-way switch arrangement may comprise a complementary pair of insulated-gate F.E.T.s 23, 24 (Fig. 5). The potential source may be derived from a battery in the timepiece by a voltage booster circuit (Fig. 7) comprising a toroidal transformer 66 the primary of which is energized by a transistor oscillator circuit to provide a higher voltage output from the secondary winding and which is rectified and smoothed. Thus considering one electrode of a 7-electrode segment type display device, a terminal 9 is connected to the common electrode and to potential level V L . A selecting signal from the timepiece frequency dividing and counting circuits is applied to a terminal 20 to cause either transistor 23 or 24 to conduct and apply the potential at terminal 8 or that at terminal 7 to the electrode. The potential at 7 is V H  and that at 8 is V L  so that the liquid crystal 4 will be excited when the voltage between 7 and 9 is applied across it. The potential at 8 is lower than at 7 and the potential difference between 8 and 9 is below the threshold voltage of the liquid crystal.
Patent GB-1028069-A (GB)
Title: Improvements in or relating to cutting tools
Inventor: SWEENY ALLEN NEIL
IPC: B23B29/034
Filed: 1965-03-02
Abstract: 1,028,069. Boring bars. DE VLIEG MACHINE CO. March 2, 1965, No. 8933/65. Heading B3C. A boring bar 10 comprises a sleeve 22 having a conical surface 24 which seats on a corresponding surface 16 in a bore 14, in the boring bar, a screw 40 screwed into the sleeve and abutting a shoulder 20 in the bore, and a tungsten carbide tipped boring tool 54 adjustably carried in sleeve 22. The bore 32 of the sleeve has keyways 38 for keys 58 on tool 54, and also a conical seat 30 for a graduated ring 48 screwed on to the tool. Tool 54 can first be adjusted to the required position on a replica of bar 10 which acts as a jig, and then placed in the working bar and clamped by screw 40. The tool is adjusted in sleeve 22 by ring 48, and is then locked in the sleeve by a screw 62, and the sleeve is placed in bore 14 in a particular angular position which is determined by a key and slot 76, 74.
Patent GB-592066-A (GB)
Title: Improvements in and relating to thermionic electric discharge tubes
IPC: H01J1/14
Filed: 1945-04-11
Abstract: 592,066. Thermionic cathodes. M-O VALVE CO., Ltd., and WARREN, G. W. April 11, 1945, No. 9088. [Class 39 (iii)] [Also in Group XL] A directly-heated cathode or the heater of an indirectly-heated cathode comprises wholly or in part a material exhibiting recalescence in the temperature range 600‹-950‹ C., and due to the recalescence of said cathode or heater there is an increase in the period, after the cessation of the supply of heating current to the cathode, during which the cathode is maintained at a temperature sufficient to ensure effective emission. Alternatively the cathode or heater may be thermally associated with the recalescent material, e.g. by winding it on a rod of the substance. Iron or steel having a carbon content not exceeding 2 per cent, or iron-nickel alloys containing less than 10 per cent nickel which may or may not contain up to 2 per cent carbon may be used.
Patent GB-772526-A (GB)
Title: Thermo-responsive bimetallic element
IPC: G05D23/275
Filed: 1955-03-30
Abstract: 772,526. Thermal switches. SOC. D'ETUDES ELECTRO-MECANIQUES. March 30, 1955 [April 2, 1954]. No. 9282/55. Class 38 (5) [Also in Group XIII] A bimetal element, of dished, non-developable surface so that it snaps to reverse curvature upon temperature change in order to displace a control member, such as a switch contact 10, has a circular portion 1 and a surrounding annular portion 2 joined by a bridge portion 4. Furthermore, the element is fixed at its centre, e.g. on the head of an adjusting screw by means of a hole 5, and the control member to be displaced is mounted on or adjacent the portion of the annulus 2 diametrically opposite the bridge 4. The portion of annulus 2 adjacent the bridge 4 bears against a stop such as the end of an adjustable screws The bimetal may be heated by electric current passed through it by way of the contact 10 and by way of either the central adjusting screw or a further contact 8 which co-acts With a fixed contact with which it may be made to remain in contact by adjustment of the central and stop screws. Resetting upon temperature reversion may be automatic or it may require application of pressure on the annular portion 2.