baber/WOPTO huggingface dataset:
Patent GB-1124019-A (GB)
Title: Pulse generator
IPC: H03K5/01
Filed: 1965-08-23
Abstract: 1,124,019. Converting SOC. DE CONSTRUCTIONS ELECTROMECANIQUES JEUMONTSCHNEIDER 23 Aug., 1965 [21 Aug., 1964], No. 36144/65. Heading H2F. To provide pulses at a variable firing angle α for a phase controlled rectifier a sinusoidal reference waveform (which is displaced by 90 degrees from the supply) is compared with a variable direct voltage to initiate square pulses which commence at angle a and terminate at the angle #, these pulses being used to derive further short positive pulses at α and short negative pulses at #, the positive pulse being utilized as firing pulses. As shown the A.C. supply signal (36, Fig. 2, not shown) at 4 is supplied to a transformer TR1 whose output is phased-displaced by 90 degrees by components 1, 2, to give the reference signal (37, Fig. 2). This is fed with a variable D.C. voltage from 8, 9 to the base of transistor T2, whose output (in the absence of a parallel transistor T3) is a square pulse of duration from α to 2#- α (Fig. 3d). A further output is derived from the transformer TR1, which during positive half cycles causes a transistor T1 to conduct, thereby controlling the transistor T3 which-in the absence of T2-would give an output pulse from 0 to #, (Fig. 3e). The output of the combination of T2 and T3 is a pulse lasting from a to # (Fig. 3f) which is applied to the base of an amplifier transistor T4 whose output is applied to a shaping circuit comprising a mono-stable multivibrator T5, T6. Bias voltage for this circuit is derived from transformer TR2 at diode 25. The output of this circuit is applied to a saturable transformer TR3, giving short positive pulses at a and short negative pulses at #, and the latter are suppressed by a diode 33. The purpose of the circuit T1, T3, is to ensure that for firing angles very near to 0, proper pulses are produced. A circuit for giving firing pulses in both half cycles of the supply and comprising essentially of a duplication of the above is disclosed (Fig. 4, not shown).
Patent GB-1402894-A (GB)
Title: Alkylation of aromatic hydrocarbons
IPC: C07C15/085
Filed: 1972-08-03
Abstract: 1402894 Alkylating aromatic hydrocarbons GULF RESEARCH & DEVELOPMENT CO 3 Aug 1972 [13 Aug 1971] 36322/72 Heading C5E A process for preparing a monoalkyl aromatic compound comprises reacting an olefin with an aromatic hydrocarbon in a reaction zone to form a monoalkyl and a dialkyl aromatic compound which are convertible to one another in equilibrium limited reactions, the concentration of the dialkyl compound during the reaction reaching a value in excess of that at equilibrium, wherein an amount of the dialkyl compound in excess of that present at equilibrium is initially introduced into the reaction zone, and the reaction is terminated before equilibrium is reached. Preferably the amount of dialkyl compound in the reaction product upon termination of the reaction corresponds to the amount introduced initially which may be 0À1- 50% molar excess of the amount which would be present at equilibrium. The example describes the preparation of cumene by alkylating benzene with propylene using a zeolite catalyst.
Patent GB-778144-A (GB)
Title: Improvements in or relating to aircraft
Inventor: GREENLAND LEONARD SIDNEY
IPC: B64C13/46
Filed: 1954-12-15
Abstract: 778,144. Aircraft feel simulators. HOBSON, Ltd., H. M. Oct. 24, 1955 [Dec. 15, 1954], No. 36351/54. Addition to 734,437. Class 4. A feel simulator is as claimed in claim 1 of the parent Specification and the airspeed responsive device comprises two parallel diaphragms, one of which, 44, applies to the control valve the force opposing the hydraulic pressure, and the other of which, 52, is spring- loaded as by a spring 53, and normally inoperative, the space between the diaphragms being subject to total pressure, and the outer faces to static pressure, and comprises a lost motion connection 55, 56 between the diaphragms adapted to be taken up when a given airspeed or Mach number is attained, whereby the other diaphragm 52 exerts a force on the control valve opposing that exerted by the one diaphragm 44. As shown, the lost motion is taken up on reaching a predetermined airspeed, but by fitting an evacuated capsule to the side of the diaphragm 52 exposed to total pressure, a predetermined Mach number is substituted. A further capsule 59 and diaphragm 57 are arranged to act on a lever system 61, 63, so that on reaching a further Mach number, the end 65 of lever 63 abuts a member 66 on the valve push rod 45, whereby the feel produced at higher Mach numbers is further modified. The capsule 59 may be omitted, modifying the feel at a higher airspeed. Reference has been directed by the Comptroller to Specification 740,510.
Patent GB-1552514-A (GB)
Title: Process for pigmenting organic material of high molecular weight
IPC: C09B33/153
Filed: 1977-09-01
Abstract: The pigment used for pigmenting high molecular-weight organic material is a diazo compound of the formula <IMAGE> where X is a hydrogen or chlorine atom, an alkyl or alkoxy group having 1-6 carbon atoms or a nitro or trifluoromethyl group, and R is an alkyl group having 1-6 carbon atoms. The orange to brown colourings obtained, for example in PVC, polystyrene, polyolefins or in paints, are distinguished by good migration fastness and extremely high light and weathering fastness properties.
Patent GB-435358-A (GB)
Title: Improvements in devices for treating wounds and the like
IPC: A61B1/273
Filed: 1934-12-20
Abstract: <PICT:0435358/III/1> A device for continuously treating wounds consists of an ozone generator having a connection for the supply of oxygen and controlling means therefor, and means for holding hollow needles &c. to apply the ozone, the ozone generator being separated from the outer wall of the device by a neutral jacket containing air. According to the arrangement shown, the ozone generator consists of concentric tubes i--k having electrodes m and n on the inner and outer surfaces respectively, the ozone being formed in the space between the tubes.  Guiding surfaces may be arranged to increase the path of the oxygen to be ozonized.  The generator is housed in a casing d having a screwed mouthpiece e which is provided with a passage for the glass nozzle g.  The nozzle has a conical end h on which a hollow needle can be mounted.  The opposite end of the generator is formed with a conical extension r which is sealed against a recess in the casing by the spring f. Oxygen is passed through the device via the connection a regulating valve b and measuring instrument c.  The leads p and q for the high frequency current are connected to the electrodes by sliding or plug contacts. A branch t is provided for the introduction of other curative materials.  The air jacket may be provided with means to pass air therethrough or may contain a coiled pipe for passing a heating or cooling medium or may be provided with electric heating means.
Patent GB-323347-A (GB)
Title: Improvements in and relating to gas adjusting devices for gas injectors and nozzles
IPC: F23D14/48
Filed: 1928-12-12
Abstract: 323,347. British Brass Fittings, Latd., Sperryn, G. N., Cannon Iron Foundries, Ltd., and Clayton, R. T. Dec. 12, 1928. Rotary disc valves.-A gas regulator for atmospheric burners, comprises a rotary cap k, screwed on an extension d of the main cock body a and provided with outlet perforations l, m in its end wall, which engages an internal non-rotatable spring-pressed thimble e having spaced inwardlydirected segmental parts j adapted to cover or uncover the outer perforations m when the cap is rotated. The thimble is held against rotation by a pin f engaging a slot g. The rotation of the cap is limited as by a projection n on the cap engaging lugs p on the body a. The cap is preferably connected to the extension by a fine thread smeared with oil, grease, or the like to ensure a gas-tight joint.
Patent GB-1526733-A (GB)
Title: Sets of golf clubs
IPC: A63B53/14
Filed: 1975-09-05
Abstract: 1526733 Golf clubs SQUARE TWO GOLF CORP 5 Sept 1975 [5 Sept 1974] 36661/75 Heading A6D [Also in Division G1] Each of the irons and/or woods of a matched set of golf clubs has the same total weight, has its centre of gravity located at the same distance (as measured along the shaft) from the grip end of the shaft and, consequently, has the same swing weight-i.e. that weight which when applied to the very tip of the grip end of the shaft will balance the club on a fulcrum located a fixed distance (e.g. 5 inches) from the grip end of the shaft. Such matching is achieved by adding an appropriate weight to the grip portion of the club and possibly also to the head. The location of the weight in the grip portion may be adjustable along the length of the shaft and may be on the same side of the shaft axis as the club head. Each club in the set has a unique shaft length and loft angle.
Patent GB-335825-A (GB)
Title: Improvements in and relating to thermometers
IPC: G01K1/06
Filed: 1929-11-29
Abstract: 335,825. Brewer, G., (Matsumoto, Z.). Nov. 29, 1929. Drawings to Specification. Thermometers.-The liquid column of a clinical or other thermometer is viewed through a roughened surface. The thermometer tube may be roughened internally or externally or it may be wholly or partially surrounded by a separate tube which is roughened externally. The roughened surface may be formed by serrations, or by a number of alternating projections and recesses, or by etching or painting.
Patent GB-1474218-A (GB)
Title: Display verifier
IPC: G04G99/00
Filed: 1974-08-21
Abstract: 1474218 Testing monogramic indicators: voltage monitoring RELIANCE ELECTRIC CO 21 Aug 1974 [18 Jan 1974] 36731/74 Heading G1U [Also in Division G4] A digit, in binary coded form 12, Fig. 2, to be displayed on a seven-segment type monogramic indicator 15, is applied to the indicator via an appropriate decoding and driving circuit 13 and also to a comparator 19, via a second decoder 17, where those segments of the indicator that should be on are compared with those that actually are on, there being determined by monitoring 20 appropriate segment voltages. The indicating segments could consist of either incandescent lamps or light emitting diodes, but as described, 15, Fig. 3, they consist of gas discharge tubes 15 which are put on or off by controlling, by means of a decoder 13, the current through them. When a segment is on, e.g. the "a" segment, its control line 14', through which the controlled current passes, will be between 15 and 60 volts, thereby causing a transistor 33 to conduct and a high voltage to be applied, via a diode 29', to the comparator. When a segment is off, its driving line 14' will be between 60 and 190 volts, transistor 33 will be non-conducting, and the diode 29' will produce a low voltage. These voltages are compared 19 with the voltages that should exist if the indicator is operating properly, and any disagreement causes a fault signal 22 to be produced. Each control lead such as 14' is also monitored by a transistor 37 to see if its potential drops below 15 volts, since this indicates that the associated tube is open circuit. If this occurs, transistor 37 conducts and an inverter 43 produces a zero output which is applied to the left-hand "8" terminal of the comparator to produce a fault signal.
Patent GB-958902-A (GB)
Title: Improvements in and relating to d.c. electric motors
Inventor: LANE NORMAN
IPC: H02K11/00
Filed: 1961-10-13
Abstract: 958,902. Centrifugal switches; electric motors. B.S.R. Ltd. Oct. 8,1962 [Oct. 13, 1961], No. 36748/61. Headings H2A and H2B. [Also in Division G3] A D.C. electric motor has a speed-controlling governor with a centrifugally-operable switch comprising an insulated non-rotatable slip ring 18, Figs. 2, 3, round the spindle 1 of the motor and a plate 22 mounted on the spindle, carrying a resilient metal strip 30, 31, with a brush contact 33 which engages the slip ring 18. The strip 30 carries a counter-weight 34 which tends to move away from the spindle as the speed of rotation of the plate 22 increases, thus breaking contact between the slip ring 18 and brush contact 33 and interrupting a current supply circuit extending through the spindle 1 to at least part of the motor winding. The motor comprises a main slip ring 7, Fig. 1, on and in conductive engagement with the spindle 1, a brush contact 8 which is in engagement with the slip ring 7 and a brush contact 5 of a commutator assembly 4 and to which coils 2 and 3 of a winding are connected. The metal strip 30 may be adjusted by a screw 35 attached to the strip and plate 27. The counterweight may be provided by the mass of the strip 30.
Patent GB-1335810-A (GB)
Title: Germ-destroying ultra-violet radiation tube
IPC: H01J61/02
Filed: 1972-08-07
Abstract: 1335810 Cleaning lamps DETEC S A 7 Aug 1972 [4 Feb 1972] 36767/72 Heading A4F A tube 1 emitting germ-destroying ultraviolet radiation is provided with a cleaning sleeve 2 lined with wiping material and driven to and fro over the tube by mechanism such as an endless belt 4 driven by an electric motor 3 and coupled by an arm 5 to the sleeve 2. Alternatively the sleeve 2 may be driven by an electric motor via a cam mechanism or a rod and crank mechanism.
Patent GB-818070-A (GB)
Title: Analogue to digital converters
IPC: H03M1/00
Filed: 1955-12-22
Abstract: 818,070. Transistor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 22, 1955 [Dec. 31, 1954], No. 36776/55. Class 40 (6). [Also in Group XXXVIII] In an apparatus for converting the displacement of a member, e.g. the rotation of a shaft from a given position, into a digital representation (see Group XXXVIII) phototransistors PT1 &c., which are normally illuminated, are selectively masked in accordance with the coding, by the movement of the member. Each phototransistor is associated with a valve V10 whose anode is connected through a multicollector transistor T1 and wire W1 to a source of potential. The valve V10 is associated with a further valve V11 which is similarly connected through a transistor T2 to wire W1, and the grids of valves V10, V11 and the collector of phototransistor PT1 are connected to a negative bias potential wire W2. The collectors of the transistors T1, T2 are connected to the wires W3 as shown. In operation, when a phototransistor is illuminated the potential on the grid of valve V10 rises sufficiently to cause the valve to conduct and cut off the valve V11. Thus the base potential of transistor T1 is lowered and that of transistor T2 increased, causing effective energization only of the lines W3 connected to the collectors of T1. If the phototransistor is masked, the valve V10 will be cut off and V1 will conduct, causing energization of the lines W3 connected to the collectors of T2.
Patent GB-1145633-A (GB)
Title: Improvements in reed relays
Inventor: FRYDMAN EMANUEL
IPC: H01H51/28
Filed: 1967-08-10
Abstract: 1,145,633. Electromagnetic reed relays. TELEPHONE MFG. CO. Ltd. 10 Aug., 1967, No. 36806/67. Addition to 1,142,055. Heading H1N. The permanent  magnet 13 of the relay of the parent Specification is mounted on a carrier 20 in screw threaded engagement at 3 with the contact unit housing 2. The carrier 20 is slotted at 23 to allow screwdriver adjustment of the magnet when a lock-nut 26 is loosened to permit rotation of the carrier 20 relative to a shield 27 which is prevented from rotating by complementary engagement with the relay base 15. The magnet 13 may be cemented in the carrier 20 or urged against it by a spring washer between the magnet and coil former flange 5.
Patent GB-522848-A (GB)
Title: Improvements relating to the manufacture of threaded sheet metal structures
IPC: B21H3/00
Filed: 1938-12-19
Abstract: 522,848. Stoppers. BRAPER MANUFACTURING CO. Dec. 19, 1938, No. 36966. Convention date, Dec. 27, 1937. [Class 125 (iii)] [Also in Group XXII] The neck of a sheet metal container 125 is provided with internal and external screw threads 128 of standard pipethread form by rolling. A container made of 12 to 24 gauge sheet steel and with a bung opening of ¥ to 2 inches, the neck has 3 to 6 threads, of a pitch varying from 14 to 11¢ threads per inch. The neck may be strengthened by an external ring 36 before flanging or curling over the edge 127.
Patent GB-836264-A (GB)
Title: Improvements in and relating to actuators for electrical switches
IPC: H01H13/56
Filed: 1957-11-27
Abstract: 836,264. Actuation of switches. WELWYN ELECTRICAL LABORATORIES Ltd., and WHITFIELD, E. H. Nov. 27, 1957, No. 37017/57. Class 38 (5). A switch 16 has a V-form abutment member 19, the arms 20, 21 of which are alternately engaged by a trigger member 10 to change the condition of the switch upon successive actuations of a knob 8. The trigger 10 has a lug 11 accommodated in a slot 12 in slidable actuator member 6 and is retained by a spring 14 which thereby also serves to retract the member 6. When knob 8 is pushed the trigger 10, in moving the V-member to its alternate position, swings to one side, the lug 11 being re-seated in slot 12 upon retraction. In a modification, the actuator 6 may be angularly displaceable, for example, pivoted about the axis of a bolt or rivet 17a.
Patent GB-922427-A (GB)
Title: Manufacture of asbestos-cement products
IPC: E04F13/14
Filed: 1960-10-28
Abstract: Asbestos-cement mixes are rendered readily extrudable or mouldable into shaped products by incorporating in the mix a small amount of a hydromodifier, e.g. 0,05 to 10%, preferably 0,1 to 5% by weight. Suitable hydromodifiers include methylcellulose, hydroxy propoxy methyl cellulose, carboxy methyl hydroxy ethyl cellulose, ethylene oxide polymer, hydroxy ethyl cellulose ether, partially hydrolysed sodium polyacrylamide, acrylamide/acrylic acid copolymer, casein, hide glue, acrylamide polymer, carboxy methyl starch ether, polyvinylalcohol, singly or in admixture, the suitability of a particular hydromodifier for any mix being determined by carrying out a preliminary test as described in the Specification.  The mixes may include 10 to 85%, (preferably 20 to 70%) of a hydraulic cement, e.g. Portland, calcium aluminate, supersulphated slag, natural, pozzolana, or lime cement and up to 55% (preferably up to 40%) of an auxiliary cementing agent (which reacts with the cement) e.g. silica flour, fly ash, calcined clay, fine sand, blast furnace slag, from 1 to 60% (preferably 5 to 40%) of any grade or type of asbestos, e.g. amphobile, amosite, crocidolite, tremolite, authophyllite, 14 to 50% (preferably 18 to 35%) of water, and up to 25% (preferably up to 10%) of fillers, e.g., stoneflour, ground shale, perlite, kaolin, pigments.  Dyes, setting accelerators e.g. lime, retarders, e.g. sugar solution, and wetting, fixing and plasticizing agents, and other fibres e.g. glass, nylon, may be incorporated in the mixes.  In compounding the mixes all the constituents may be mixed at once or the solid constitutents may be dry mixed and water added; alternatively an aqueous solution of the hydromodifier (0,25 to 20% strength), may be added to a dry mix of the other constituents; the wet mix is then plastic-formed into the desired shape and the shaped article cured, e.g., by autoclaving for 12 to 20 hours under a steam pressure of 100 p.s.i.g. or by storing under highly humid conditions for 7 to 30 days.
Patent GB-326263-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs
IPC: C09B3/44
Filed: 1928-12-15
Abstract: 326,263. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 15, 1928. Halogenated pyranthrones are converted into vat dyes by treatment with oxidizing agents, preferably in the presence of sulphuric acid or oleum. In examples, (1) dibrompyranthrone (obtained by brominating pyranthrone in chlorsulphonic acid in presence of iodine) is oxidized in sulphuric acid solution with manganese dioxide; the product, after boiling with bisulphite solution, dyes cotton in warm brown shades; (2) a dyestuff of similar properties is obtained in the same way from the dibromo derivative prepared by brominating pyranthrone in anhydrous sulphuric acid in pre, sence of antimony) is oxidized in sulphuric acid solution with potassium iodate; the product dyes vegetable fibres in red-brown shades. Specification 278,102 is referred to.
Patent GB-1473359-A (GB)
Title: Lighters
IPC: F23Q2/28
Filed: 1974-08-23
Abstract: 1473359 Cigarette lighters ROWENTAWERKE GmbH 23 Aug 1974 [25 Aug 1973] 37199/74 Addition to 1403385 Heading F4F The electrically ignited gas lighter described in British patent Specification 1,403,385 is improved by having the electrical circuit and accumulator cells on one or more printed circuit boards on which non-electrical as well as the electrical components of the lighter are mounted. Two boards 20, 26 may be connected together perpendicularly by soldering as at 37 which forms the mechanical connection as well as the electrical connection between the boards.
Patent GB-449614-A (GB)
Title: Improvements in liquid levels
IPC: G01C9/22
Filed: 1934-12-31
Abstract: 449,614. Levels. GILLIE, J.W., The New Quay, North Shields. Dec. 31, 1934, No. 37306. [Class 97 (ii)] To damp acceleration effects a liquid level B, particularlyfor indicating the trim of ships, is rocked on the fulcrum D by means of a hand operated cam or equivalent C. K is a knife edge on the level B for co-operating with the cam C.
Patent GB-838156-A (GB)
Title: Improvements in or relating to electric junction boxes
IPC: H02G3/14
Filed: 1957-12-03
Abstract: 838,156. Junction-boxes. HAWKE, W. Dec. 1, 1958 [Dec. 3, 1957], No. 37633/57. Class 38 (1). In a flameproof junction-box wherein a flat machined face D on the cover E engages a corresponding face F on the body A and a spigot L on the lid fits inside the body, the spigot is circumferentially grooved at M to receive a resilient sealing washer N which forms a seal between the spigot and body.
Patent GB-1077308-A (GB)
Title: Improvements in fluid transducers
Inventor: CRAFT DAVID JOHN
IPC: F15C1/04
Filed: 1964-09-15
Abstract: 1,077,308. Regulating fluid-flow; pure fluid amplifiers. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Sept. 13, 1965 [Sept. 15, 1964], No.37675/64. Heading G3H. An electropneumatic transducer comprises a chamber 14 having a fluid inlet nozzle 13 and outlet ports 24, 25 arranged on either side of a piezo-electric lamina 10. The lamina is anchored at one end to a support 11 and is deflected by electric signals applied to electrodes 21, 22 to vary the division of the flow between the outlet ports. As shown the outlet ports constitute the control signals for a pure fluid amplifier having a power jet 17 and outlets 19, 20. In a modification, the lamina is circular and controls the flow from an annular groove, the lamina being anchored at its centre.