baber/WOPTO huggingface dataset:
Patent GB-1419653-A (GB)
Title: Fuel flow control apparatus for a burner
IPC: G01N27/62
Filed: 1973-01-15
Abstract: 1419653 Burner controllers WALTER KIDDE & CO Inc 15 Jan 1973 [26 Jan 1972] 1991/73 Heading F4T A burner controller has a fuel valve 23; flame responsive means 12 for providing a flame rectified direct current in response to a flame at the burner, said means including electrodes 13, 17 for conducting said current and defining a gap filled by the flame rectifying said current, an energy source including capacitor means C1, C2 so arranged that following fuel ignition the only energy received by the capacitor means is that energy provided by said flame rectified current; electrical sampling means CSCR for detecting the energy level provided by said direct current and stored in said capacitor means, the sampling means drawing power only from said capacitor means and providing a periodic output signal indicative of flame at the burner; and control means SCR1, 31 responsive to said sampling means for closing the valve 23 in response to the absence of a minimum energy level sampled by said sampling means. To start up, a switch 47 is closed and a capacitor C5 delays operation of a relay 42 so that contacts 43, 44 remain initially engaged whereby capacitor C1 is initially charged via diode D4 from a line A.C. supply at input 18, 19. A diode D1 biases the gate of a complementary silicon controlled rectifier CSCR so that CSCR is non-conductive and conductive during negative and positive half-cycles respectively on line 20, CSCR being triggered on at positive-going zero crossings on line 20; a capacitor C2, charged from C1 via resistor R2, is thereby periodically discharged to trigger SCR1 and discharge capacitor C4 thereby energizing ignition spark transformer T1 and relay, 31. After the delay provided by C5, relay 42 is energized to charge contact 43 from contact 44 to 45 whereby solenoid valve 23 opens and charging of C1 from the A.C. supply is discontinued. If ignition occurs C1 is charged from flame rod 17 whereby C2 continues to be charged via R2 and discharged via CSCR to continue energization of relay 31 and thereby of valve 23. If ignition does not occur or if the flame goes out, the charge on C1 continues to be effective for a short period to charge C2 whereby ignition sparks continue to be produced for that period. If ignition is not established, or re-established, in said period the charge on C1 becomes too low for the resulting charge on C2 to cause triggering of SCR1 whereby valve 23 is closed but relay 42 remains energized thereby requiring interruption of the A.C. supply, e.g. by switch 47, to re-start.
Patent GB-675727-A (GB)
Title: Improvements in luminous signalling and like devices
IPC: G09F19/00
Filed: 1951-01-26
Abstract: 675,727. Signs. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Jan. 26, 1951 [Feb. 6, 1950], No. 2032/51. Class 3(ii) A panel for a luminous display device is inclined to the vertical and provided with vizors 6 of suitable width so that incident light reflected from the panel is either directed away from an observers line if sight or intercepted by the vizors. The device has a plurality of lamps 12, 13, which are separated by shields 14A, 14B ... and each lamp illuminates a separate indication which consists either of a metal stencil plate 15, 16 ... , backed by a ground glass plate 9, 10 ... , or an uncoloured glass sheet having a ground or frosted sign on its rear surface, the remainder of the surface being covered with black varnish and the whole of the plate being backed by a coloured glass plate.
Patent GB-739620-A (GB)
Title: Improvements in or relating to automatic electric circuit breakers
Inventor: COLE THOMAS MITCHELL
IPC: H01H71/52
Filed: 1954-01-22
Abstract: 739,620. Automatic circuit breakers; contact members for switches. FEDERAL ELECTRIC PRODUCTS CO. Jan. 22, 1954, No. 2041/54. Class 38 (5). The member 24 carrying the movable contact 22 of a circuit breaker is mounted on a movable pivot at which is provided spring means or which is (Figs. 1 and 2) itself of spring wire 52, an actuator 28 being pivoted to member 24 and connected by a link 30 to a handle 26. A bimetal latch 40 engaging the actuator 28 and an electromagnetic device 42 which attracts the latch 40 form overload releases, the switch being then opened by a spring 46. The pivot 52 is flexed and moved slightly downwards by the bodily downward movement of member 24 on closing the switch, metal sleeves 54 on the ends of the pivot bearing and moving downwards in recesses 56, 58 in casing parts 10, 12 respectively. This tensioning of the spring urges the member 24 upwards, thus ensuring sufficient pressure between contacts 20, 22. While closing the switch, and when the handle is in the intermediate vertical position, contacts 20, 22 just engage, and as the handle is moved further clockwise (Fig. 1) the member 24 is also moved slightly laterally on pivot 52 to provide a " wiping " action between contacts 20, 22. In other embodiments (Figs. 7-11 and 20-26, not shown) the pivot is in the form of a coiled spring and strip of coiled spring metal respectively. In yet another embodiment (Fig. 14) the pivot is in the form of a tapered screw 72 carried in resilient bearings 96, 98, the tapered part 74 engaging part 60B of the movable contact member and constituting a calibration device, since by turning the screw, the amount of overlap between the bimetal member and the actuator can be varied. This can be achieved in the first three embodiments referred to by inserting a tool into a notch 70 in the member 24 and bending the latter slightly. The bearings 96, 98 are free to rotate or move laterally, thus providing for contact pressure and wiping action as before. In another embodiment (Fig. 28), the pivot is also in the form of a tapered pin mounted for vertical and lateral movement in elongated recesses 122, 124 in casing parts 10D, 12D, a spring member 126 (Fig. 36) with arms 132, 134 providing for the contact pressure.
Patent GB-119181-A (GB)
Title: Improvements relating to Road Vehicle Wheels.
IPC: B60B23/10
Filed: 1918-02-05
Abstract: 119,181. Dukes, W., and Warland Dual Rim Co. Feb. 5, 1918. Detachable - rim attachments to wheels.- The detachable rim e is secured on coned seatings formed by plugs d fitted in sockets c stamped out of the wheel disks a.
Patent GB-606935-A (GB)
Title: Improvements in the construction of thick walled high pressure vessels
IPC: B23K9/032
Filed: 1946-01-22
Abstract: 606,935. Making pressure vessels. HARVEY & CO. (LONDON), Ltd., G. A., and FERGUSSON, H. B. Jan. 22, 1946, No. 2108. [Classes 83 (ii) and 83 (iv)] Coiling; uniting by fusion.-Thick-walled high-pressure vessels are made by first forming a longitudinally welded open-ended cylinder from a steel plate, and after removing the proud welding, winding a steel strip helically round the cylinder and welding the edges, winding and welding one or,more further strips thereon with staggered seams or wound in the opposite direction and providing flanged or thickened ends to secure closures. The coiling may be effected by rotatably mounting the cylinder 1 in a lathe and feeding the strip 4 from a drum 5 on a frame mounted on a truck 10, through straightening rolls 6, heating furnace 7, tension rolls 8 and guide rolls 9 carried by the truck, which runs on rails 11. The frame may be swivelled horizontally and set at any desired angle relatively to the cylinder axis. To ensure that the strip 4 is in a hot condition when it reaches the cylinder a narrow strip 4<SP>*</SP> may be welded to the end of the main strip 4, the free end being welded to a short extension 1* tack-welded to one end of the cylinder. The inner surface of the cylinder is cooled by water &c. during coiling, so that it will be a tight-fit against the helical layer. The helical joints are welded either during cooling or subsequently by an automatic welding head 12 attached to the lathe tool-box. The ends of the cylinder may be built up by additional windings to form a flange 14, Fig. 4, in which holes may be drilled and tapped to receive screwed studs 15 by means of which ends 16 are secured to the cylinder. Alternatively the solid dished-and-flanged closures 17 may be welded to the ends of the cylinder. To prevent excessive pressures on the outer layers of a strip in the event of corrosion or leakage from the cylinder holes may be drilled or punched through each strip.
Patent GB-1081511-A (GB)
Title: Industrial trucks
IPC: B60K17/04
Filed: 1965-01-18
Abstract: 1,081,511. Pallet trucks. EATON YALE & TOWNE Inc. Jan. 18, 1965 [Jan. 21, 1964], No. 2120/65. Heading B8H. [Also in Divisions B7 and F2] The elevating frame 12 of an industrial truck (see Division B7) is supported for vertical movement on a pair of rollers 15 on bell-crank levers 16 and on parallel links 13, 14 connected to the main frame 11 and is raised by extension of a hydraulic ram 17 when the levers are pivoted by links 18 connected to the links 13.
Patent GB-708917-A (GB)
Title: Xanthones and process for the production thereof
Inventor: GOLDBERG ALAN AUGUST
IPC: C07D311/86
Filed: 1951-01-29
Abstract: The invention comprises 2- or 3-dialkylamino alkyl xanthones having also optionally halogen-, alkoxy-, nitro- or amino-groups in one of the 5-8 positions, obtainable from the corresponding 2- or 3-aminoxanthones, by reaction with a dialkylaminoalkyl halide.  In examples, diethylaminoethyl chloride or its hydrochloride is caused to react with 2-amino-, 3-amino-, 2-amino-, 6-chloro-, 2-methoxy-6-amino-, and 2-amino-7-nitro-xanthones to give the corresponding dialkylaminoalkyl compounds; 5-diethylamino - 2 - bromopentane hydrobromide gives the corresponding product with 3-amino-xanthone; nitro products may be reduced to amino products; other reagents include 3-amino - 8 - nitroxanthone, g  - diethylamino propyl chloride and similar dialkylaminoalkyl halides and their hydrohalides.
Patent GB-1123986-A (GB)
Title: Process for separating metals from solutions of their salts in water by liquid-liquid extraction
Inventor: SPITZER ERNST LEOPOLD THOMAS M
IPC: C01G3/00
Filed: 1967-01-16
Abstract: A metal is separated from a solution of its salt by contacting an acidic halide ion-containing aqueous solution of at least one metal salt with a liquid that contains at least one sulphonium salt and which mixes partly or not at all with the aqueous phase, after which the extracted metal may be removed from the extract phase.  The sulphonium salt has an "effective chain length" (the number of atoms that participate in the longest chain) of at least 9, and preferably 15 to 25 atoms and the salt may contain a single sulphonium group or be a tertiary sulphonium salt.  The sulphonium salt may be the chloride, such as di-n-dodecyl methyl sulphonium chloride, diisoamyl methyl and n-hexadecyl n-dodecyl methyl sulphonium chloride, C10- 18-alkyl dimethyl sulphonium methyl sulphate or di-n-octylmethylsulphonium chloride, and the solvent liquid may be chloroform, 1,2-dichloroethane, 1,2-dichloropropane and di (2-chloroethyl) ether.  The halide ions may be chloride ions, and hydrochloric acid may be present.  The starting material contains salts of Fe, Cu, Co, Cr, Ni, Zn and/or Mn, and may be an aqueous solution resulting from the leaching of ores, to which HCl has been added. Cobalt may for instance be separated from a solution to which 4-8N HCl has been added, or iron from one to which 1-4N HCl has been added.  The aqueous and organic phases are brought into contact and stirred vigorously until equilibrium between the two phases is achieved, and then the extract phase treated with water or dilute HCl to extract the metal and regenerate the sulphonium salt. The extraction may be effected in a continuous phase or countercurrently: iron and/or copper may be extracted from cobalt and nickel; iron may be separated from copper; cobalt may be separated from nickel.
Patent GB-1024324-A (GB)
Title: Improvements in loose covers for furniture
Inventor: JENKINS KENNETH THOMAS
IPC: A47C31/11
Filed: 1962-01-22
Abstract: 1,024,324. Loose covers. ROBIN MILLS Ltd. Jan. 22, 1963 [Jan. 22, 1962], No. 2222/62. Heading A4M. A loose cover for the seat of an arm cair comprises a seat section 1, a front part 5 and a pair of side extensions 6, which are connected with or form part of the seat section 1, and a pair of corner sections 9 each of which is attached at 10 to the seat section 1, at a distance from one side edge 2, and to the corresponding side extension at the upper edge 12. The cover is designed to fit different sizes and shapes of chairs, including those in which the seat projects in front of the arms, by making the distance 6-6 to be at least as great as the width of the widest seat to be fitted. When fitting narrow seats more material overlaps the side edges of the seat and the corner sections 9 and side extentions 6 are folded around the sides of the chairs. The corner sections are triangular or trapezoidal in shape and have a degree of elasticity along the sides 11.
Patent GB-1508351-A (GB)
Title: Apparatus for the location of faults in cables
IPC: G01R31/11
Filed: 1976-01-16
Abstract: 1508351 Cable fault location ELECTRICITY COUNCIL 16 Jan 1976 [17 Jan 1975] 2235/75 Heading H4D Apparatus for location of a fault in a cable comprises a generator which supplies a signal to one end of the cable, and a digital transient recorder which records the waveform of the resultant reflected signal from the cable, and includes means for repetitively sampling the waveform to be recorded, A to D conversion means arranged to convert the sample signal amplitudes into digital form, and a digital signal store for recording the digitized sampled information. As described, an impulse generator producing current waveforms in a linear coupler as described in Specification 1,508,352 is used, although it is stated that a voltage waveform may alternatively be utilized. The output signal from the linear coupler 20 is sampled at an accurately controlled rate typically 29 MHz in a sampler 40 controlled by a clock frequency signal generator 41 and the amplitudes of the output samples are converted from analogue to digital form in an analogue-todigital converter 42, typically providing a 6-bit output thereby enabling 64 different amplitude levels to be recorded. The digital output from converter 42 is applied, via a switch 43, to a memory 44 which is typically a semi-conductor memory. When it is required to examine the waveform, the switch 43 is  put in the re-play condition and the stored signal in memory 44 is fed both to a digital-to-analogue converter 45 and is also fed back via the switch 43 to be re-stored in the memory 44. The output of the digital-to-analogue converter 45 may be applied to a cathode ray oscilloscope 46 and/or to an automatic plotter 47. The stored signal in the memory may be fed to a paper tape perforator 48 to produce a permanent record. It may be fed to numerical indicators 49 if numerical information is required, for example for communication to a remote station. The output of the memory additionally or alternatively may be applied to data transmission equipment 50 for feeding over a data link 51 to a central station. The central station has a digital data processor 52 including a memory 53 for receiving the transmitted data. The incoming data can be compared in the processor with pre-recorded information representative of the waveform to be expected or pre-computed information representative of possible fault conditions from a data store 54. Additionally or alternatively a display device 55 fed from a digital-to-analogue converter may be provided to enable the incoming data to be displayed visually in analogue form. In operation, the complete waveform from an applied impulse would be stored in the memory and, when the recording cycle is complete, the stored data would be replayed through the digitalto-analogue converter 45. The re-play may be at a faster or slower rate than the original sampling and is usually made repetitive by recirculating the stored data through the switch 43 so that a steady trace is obtained on the display oscilloscope 46.
Patent GB-1304333-A (GB)
IPC: B60S1/60
Filed: 1971-01-18
Abstract: 1304333 Vehicle windscreen, window, and headlamp cleaning systems SWF-SPEZIALFABRIK FœR AUTOZUBEHÍR GUSTAV RAU GmbH 18 Jan 1971 [19 Jan 1970] 2254/71 Heading A4F A washing installation for the windscreen and headlamps of a vehicle comprises a water pump for supplying water directly to a nozzle or nozzles for discharge on to the windscreen, and for supplying water via a pressure actuated valve to nozzles for discharge on to the headlamps, the valve being adapted to open only when the output pressure of the pump exceeds a predetermined value. The pump is electrically driven and is controlled by a switch to operate at two different speeds to provide water at pressures respectively below and above the opening pressure of the valve. The pump may also supply nozzles for washing the rear window and rear lamps via a further pressure actuated valve operable at different pressures obtained by operating the pump at a further different speed under the control of a switch having a number of settings. Alternatively the water supply to the nozzles for washing the rear lamps and to the nozzles for washing the headlamps may be controlled by the same pressure actuated valve. At certain settings of the pump control switch wiper installations for the headlamps, rear window, and rear lamps may be energized. Specification 1304332 referred to.
Patent GB-1421641-A (GB)
Title: Method of cooling of a continuously cast product
IPC: B22D11/124
Filed: 1973-01-16
Abstract: 1421641 Continuous casting INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 16 Jan 1973 [21 Jan 1972] 2287/73 Heading B3F A continuously cast strand 2 is cooled (e.g. below guide rolls below the vertical mould and after some spray cooling) in a confined space 3 by an upward flow of liquid enveloping the descending strand 2 and moving at such a speed that the liquid is not heated beyond the point at which bubbles of steam begin to form at the strand surface, the liquid discharging from the top of the space 3. The apparatus is claimed in Divisional Specification 1,421,642. The casting may be rotated about its axis. In the opening 5 of an annular head 4, liquid entering from ducts 5 separates into upwardly and downwardly directed streams.
Patent GB-225417-A (GB)
Title: Choke nipple for oil pipe lines
IPC: F16K3/26
Filed: 1924-01-29
Abstract: 225,417. Arbon, P. Jan. 29, 1924. Closure members.-A valve device, particularly suitable for replacing the choke nipple in oil pipe lines, comprises a plug rotatable and movable axially, and having openings of different diameter which can be brought into register with the pipe-line. The body 5 is bored in one direction at 8 to form the liquid passage, and in an other direction at right-angles to receive the valve plug 10. The upper end of the plug is screw-threaded at 20 and passes through a bridge 15. Passages 23, 24 - - are provided in the plug, any of which can be brought into register with the passage 8. An indicator 27 may be provided to show which passage in the plug is in use.
Patent GB-1293526-A (GB)
Title: Improvements in rf resonance electron excitation
IPC: H01S3/0975
Filed: 1970-01-19
Abstract: 1293526 Lasers; discharge lamps GENERAL ELECTRIC CO 19 Jan 1970 [23 Jan 1969] 2410/70 Headings H1C and H1D In a gas laser, steady aligned magnetic and electric fields are used to define an electron confinement area within the laser resonant cavity, and an RF voltage is imposed on the electric field to excite electrons in the gaseous active medium to a well-defined energy level at which efficient transfer of energy to the bulk of the active medium occurs to cause population inversion. The electrons may be derived thermionically, or by introducing an easily ionized. vapour such as caesium into the bulk of the gas, which may be argon. Fig. 1 shows a laser cavity formed of two glass cylinders 12a, 12b separated by an apertured anode 28, mirrors 14 and 16 sealing the cavity. Energy extraction is via mirror 14 and a window 24 in a cathode 18. A second cathode 20 is placed behind mirror 16, and a solenoid 32 or permanent magnets (not shown) impose a magnetic field in the cavity. Gas is supplied through inlet 36 at a pressure of 1-10<SP>-4</SP> mm. Hg, and a D.C. bias and R.F. voltage are applied to the electrodes 18, 20 and 28 by generator 26. Electrons are removed from the caesium vapour and are confined to a cylindrical drift zone along the cavity by the fields and the anode aperture. The electrons are excited to a resonant state dependent on the bias and R.F. voltages, and act as a non- coherent pumping source for the argon. The anode 28 may be replaced by a cylinder, which may be a mesh, or by separated apertured plates which define an effectively cylindrical drift zone. The dimensions of the apparatus of Fig. 1 cause difficulties in matching to an RF generator, and the length of the drift zone increases the time required to re-energize an electron after it has excited an argon atom. Figs. 4 and 5 show a laser cavity comprising a rectangular slot 52, cylindrical bores 54, 55 and mirrors 56, 58 in a conductive wall 46 which is placed between two R.F. resonators 42, 44. The resonators are connected by the slot 52, and a relationship is given between the size of the slot and the shape of the R.F. resonators, the shape shown in Fig. 4 allowing use of a microwave generator. The wall 46 is insulated by thin sheets 48, 50, to allow the D.C. bias to be applied. A solenoid 66, or permanent magnets, supply the magnetic field. The laser cavity is disposed across the direction of electron drift in this embodiment, so that higher electron excitation rates are possible. The apparatus for exciting electrons to resonance described above is stated to be usable at any frequency between the infra-red and soft X-ray portions of the spectrum, and may be used as a general source of narrow band non- coherent radiation for purposes other than laser pumping, e.g. chemical synthesis.
Patent GB-931759-A (GB)
Title: Improvements in or relating to the reduction in the susceptibility of petroleum and petroleum fractions to bacterial attack
IPC: C10G32/00
Filed: 1961-01-20
Abstract: A condensation product having bactericidal action (see Group VI) is obtained by heating together at about 75 to 110 DEG C., 1 mole of borax and 9 moles of ethylene glycol.ALSO:The susceptibility of petroleum or petroleum fractions to bacterial attack is reduced by maintaining the petroleum or petroleum fraction in contact with a liquid condensation product of an alkali-metal borate with ethylene glycol, diethylene glycol, triethyleneglycol, 1,4-butanediol, 2,3 - butanediol or 1,2 - propanediol, the amount of diol being 6 to 20 mols. per mol. of tetraborate equivalent to the borate used or an aqueous solution thereof.  The preferred substance is the condensation product of sodium tetraborate with 9 molar equivalents of ethylene glycol.