baber/WOPTO huggingface dataset:
Patent GB-1081892-A (GB)
Title: Improvements relating to the production of phosphoric acids
Inventor: JR WILLIAM ROY MUSTIAN
IPC: C01B25/24
Filed: 1964-07-21
Abstract: Phosphoric acids of high P2O5 content, i.e. not less than 68% w/w on an impurity-free basis, are prepared by continuously feeding a wet-process phosphoric acid to a first heating zone from which is continuously withdrawn a more concentrated acid having a P2O5 content of 67-72%, and passing this to a second heating zone, continuously withdrawing the final acid of high P2O5 concentration, e.g. not less than 76% P2O5.  The temperatures of the heating zones are maintained at the boiling-points of the acids therein by releasing "hot combustion products" into the zones. Preferably, they are released into at least the second zone through a vertical dip tube so as to maintain a stable bubble thereof at its lower end, and the acid in the zone is preferably caused to flow in a toroidal path surrounding the bubble.  The volume of liquid in at least the second heating zone is preferably related to the volumetric flow rate of the acid through it such that concentration of acid is rapidly effected.
Patent GB-603941-A (GB)
Title: Improvements in or relating to circuit arrangements for expanding the volume range of electric oscillations
IPC: H03G7/02
Filed: 1945-11-06
Abstract: 603,941. Volume range expansion. PHILIPS LAMPS, Ltd. Nov. 6, 1945, No. 29546. Convention date, July 3, 1940. [Class 40 (iv)] A volume range expander comprises a network 3 which includes a non-linear resistance and in which signals are combined with pulses the duration of which depends on the instantaneous amplitude of the signal envelope, or in which a current representing the signal envelope is combined with pulses of a duration depending on the instantaneous amplitude of the signals. It is demonstrated that with a suitably high pulse-frequency unwanted modulation products can be filtered out as at 24, the effective output consisting of currents at signal frequency having an amplitude which depends on the law connecting the signal amplitude with the pulse duration. In the arrangement described the pulse duration bears a linear relation to the signal amplitude and in consequence the output signal amplitude is proportional to the square of the input signal amplitude. In the arrangement shewn, the pulses are produced by combining envelope waves obtained by rectifying and filtering the signal, with saw-tooth waves generated at 16 in the grid circuit of valve 18, the pulse voltages appearing across the anode resistance 23.
Patent GB-688157-A (GB)
Title: Improvements in or relating to chasers for pipe and like dies
IPC: B23G5/00
Filed: 1950-12-04
Abstract: 688,157. Screw-cutting. BRIDGES, G. N. Dec. 3, 1951 [Dec. 4, 1950], No. 29607/50. Class 83 (iii). A chaser for tangential mounting in a pipescrewing or like die has a tapered entering end 1 followed by preliminary cutting teeth 3 which also act to pull the die on to the work, and a second tapered portion 4 followed by teeth 5 which effect the final cutting operation and correct any pitch error in the thread cut by the first teeth. The chasers are primarily for cutting tapered threads and are preferably used in dies having mechanism for opening the chasers automatically to produce a tapered thread but they can be used for cutting non- tapered threads.
Patent GB-226527-A (GB)
Title: Improvements in centrifugal machines for treating textiles with liquid and gases
IPC: D06B5/26
Filed: 1924-12-10
Abstract: 226,527. Wolfer, H., and Obermaier et Cie. Dec. 17, 1923, [Convention date]. Treating substances with liquids. -In a centrifugal machine for treating textiles with liquids and gases, the perforated drum r<1> is supported by hooks k<1> from a nut i which works on a thread e<1> on the driving shaft e. The bearings for the shaft are carried by the cover and have stuffing boxes with glands d', b<1>. The cap s of the drum has a central aperture for the admission of fluid and is arranged to engage with a spherical body L<1> having a central bore. This body L' rests in a spherical shelll at the end of the driving shaft so that it can turn and follow the oscillations of the drum. At the lower end of the apparatus is arranged a ring m on a plunger m<1> which can be raised or lowered by means of the handle p. To prepare the apparatus for use the cover b is removed and the drum r<1> with the textile materials r is lowered into the vessel a until it rests on the ring m. The cover b is replaced and the drum is raised by the handle p and the ring m until the hooks s<3> are in position to enter the forks hanging from the nut i. The shaft e is rotated by the pulley g until the bolts k<1> strike the hook stems; the support m is then lowered. leaving the drum suspended by the hooks. The supply pipe is connected to the nipple d<1> and the shaft is driven. The early rotation of the shaft causes the nut i to move upwards until the cap s engages the ball L<1> and the movement of the 'ball enables the drum to be properly centralized. The fluid is passed through the material and the latter may be afterwards dried by the passage of air under pressure. To circulate liquids for dyeing or bleaching a pump may be connected to the pipes d', c<5>.
Patent GB-248830-A (GB)
Title: Improvements in or relating to the cracking of either liquid or readily fusible organic complexes by means of an electric arc
IPC: C10G15/00
Filed: 1924-12-10
Abstract: 248,830. Longhi, C. Dec. 10, 1924. Electrode furnaces.-A furnace for decomposing hydrocarbon and like oils by means of a submerged arc, for the production of a gas rich in acetylene, is constructed entirely of metal, the actual splitting of the oil &c. taking place in a chamber provided with insulated electrodes I of carbon or metal, if desired, arranged for separate cooling, and which may be hollow so as to permit the introduction of gaseous or liquid substances for the purpose of enriching the gaseous product formed in the arc. The liquid operated on is withdrawn from the upper chamber H by means of a pump B, being passed through a water-cooled refrigerator C. The gases leaving the chamber H are taken by a pipe P to purifiers D, E. Smoke black collects in the lower part G of the decomposition chamber F and can be removed without interfering with the working of the apparatus. The current used may be direct or alternating-monophase or polyphase-. and the voltage employed may be low, moderately high, or very high; the electrodes may be fixed or movable, and arranged at an inclination as shown, or horizontal or vertical. The arc may be continuous, being blown by the liquid entering the arc-zone under pressure; or it may be discontinuous or of the disruptive type, in the latter case the successive primings being effected mechanically as by a synchronously rotating star centre, or by means of an auxiliary current.
Patent GB-178065-A (GB)
Title: Improvements in extension furniture for printers
IPC: B41B1/04
Filed: 1921-11-08
Abstract: 178,065. Hancock, H. H. April 7, 1921, [Convention date]. Furniture.-In extensible furniture of the type comprising two counterpart, members, means is provided for connecting the members inseparably so that they can be extended to substantially the combined length of the members without danger of longitudinal or transverse separation. Each member consists of a body-portion 10, 11 containing a groove 16 and provided with a tongue 12 which slides within the groove of the other member. Separation of the members is prevented by a groove 18 in the lower surface of each tongue, which is closed at the outer end and is engaged by a pin 19 or the like on the body portion of the other member.
Patent GB-1409120-A (GB)
Title: Adaptive gate video gray level measurement and tracker
IPC: G01S3/782
Filed: 1972-11-20
Abstract: 1409120 Optical tracking WESTINGHOUSE ELECTRIC CORP 20 Nov 1972 [6 Dec 1971] 29845/74 Divided out of 1409119 Heading H4D  The description is similar to that of the parent Specification 1,409,119, but the claims relate to a method of using a T.V. system or tracking a target having a plurality of disjointed regions of different gray levels comprising: initially selecting one such region as the target and positioning it on a display screen so as to contain a predetermined position thereof, defining a measurement gate at said position, defining early and late tracking gates for at least one co-ordinate of the display and initially positioning the tracking gates at the said predetermined position of the display, determining the video gray level of the target in accordance with that level occurring in the measurement gate, thereupon displacing each of the early and late tracking gates outwardly from the predetermined position of the display screen in their respective directions along said co-ordinate to a position on the boundary of the target region at which each gate includes the target gray level, on the average, within one half of its area, thereby to acquire the target, determining the coordinates of the centre of the early and late tracking gates and producing an error signal representing the displacement of said centre from the predetermined position of the screen and using said error signal to adjust a camera so that said centre coincides with said predetermined position.
Patent GB-814640-A (GB)
Title: Electric current continuous measurement system
IPC: G01N27/49
Filed: 1957-09-23
Abstract: 814,640. Electric tests. FOXBORO CO. Sept. 23, 1957 [Sept. 25, 1956], No. 29880/57. Class 37. In apparatus for determining the concentration of a component of a liquid solution by passing the liquid through a conduit along which a pair of electrodes are spaced, the electrodes are made of materials which undergo similar potential changes when changes occur in the mean potential of the solution and are mounted transversely of the conduit and provided with multiple perforations to allow the passage of the liquid so that a thin diffusion layer is maintained on one of the electrodes. The invention is described with reference to determining the chlorine content of water and to this end a sample from the main channel 11 is fed to a chamber 16 where it is mixed with potassium iodide from a vessel 17. The resulting solution of potassium chloride and iodine enters the test conduit 22 in which are the electrodes A, R. Both electrodes are of platinum or other materials which undergo similar potential changes when for example the pH of the solution varies. Source 26 and potentiometer 25 apply a polarizing potential across the electrodes and a resistor 24 in series with the electrodes provides a voltage drop proportional to the electrode current which is indicated at 27. A thin, evenly distributed diffusion layer forms on the electrode A.
Patent GB-983436-A (GB)
Title: Marrons glaces
Inventor: KETT GEORGE
IPC: A23B7/08
Filed: 1962-08-03
Abstract: The production of marrons glac<\>aes is by freeze-dying peeled, cooked chestnuts, immersing the nuts so dried in a sucrose-glucose syrup, and draining, or draining and drying, the nuts when sufficiently impregnated.  The syrup may contain the sucrose and glucose in a weight ratio 3:2, and may contain a flavouring such as vanilla, honey or ginger.  The syrup-laden chestnuts may be sugar-iced or coated with a couverture.
Patent GB-1522636-A (GB)
Title: Device for dispensing a pressurized product
IPC: B05B1/34
Filed: 1975-07-17
Abstract: 1522636 Actuator buttons for pressurized dispensing containers; reciprocating pumps R H LAAUWE 17 July 1975 [19 July 1974] 30057/75 Headings F1A and F1R A valve button includes a valve closing the discharge orifice, which valve is opened by pressure when the container valve is opened and closes when the container valve is closed and remains open while the container valve is open. As shown the button 7 is received on a valve stem 6 which connects with a chamber 11 through a passage 10a. The chamber 11 has a discharge orifice 13 closed by the end 17 of a piston-rod 16 carried by a piston 15 slidable in the chamber 11 but held against rotation by guides 24, 25 and acted on to close the orifice 13 by a spring 23 and to open the orifice by the pressure in the chamber 11 the extent of opening being limited by an abutment carried by a screw threaded cap 20. A swirl chamber is formed between the end 17 and the orifice 13 and is fed through radial passages which are also controlled by the movement of the piston-rod. It is stated that the button may be used as a finger actuated pump type dispenser.
Patent GB-1514370-A (GB)
Title: Semiconductor integrated circuit devices and method of preparing the same
IPC: H01L23/532
Filed: 1976-07-20
Abstract: 1514370 Integrated circuit devices NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 20 July 1976 [28 July 1975] 30065/76 Heading H1K A bipolar transistor in an integrated circuit device is characterized by polycrystalline semiconductor layers 34, 35 having larger upper surfaces as compared to their lower surfaces, on collector and emitter regions, respectively, the side surfaces of the polycrystalline layers being provided with insulating layers 36, 37, their upper surfaces being in contact with respective collector and emitter electrodes 39, 40, and an insulating film 33 covering the rest of the surface of a substrate 21. As shown in Fig. 2, lateral spacing between the collector and base electrodes 39, 41 respectively or between the base and emitter electrodes is substantially zero. In a method of making the device, a highly doped and a comparatively undoped N-layers 68, 69, Fig. 3B respectively of polycrystalline silicon are formed by pyrolitic decomposition of silane, and then using etching masks 72, 73, Fig. 3E, and a solution having faster rate of etching for the doped layer 68 as compared to the rate for the comparatively undoped layer, the layers 68, 69 are etched to produce inverted frustum-shaped polycrystalline silicon layers. Subsequent to deposition of an insulating film 78, typically of Si 3 N 4 , and preferably doped with boron in the region corresponding to the base region 66, the assembly is heat treated to form emitter region 80 due to diffusion of impurity from the doped polycrystalline layer and at the same time to have a uniform impurity distribution in the polycrystalline silicon layers. The insulating film 78 is then bombarded with ions, e.g. of boron, argon, and the portions of the film covering the side surfaces of the inverted frustum-shaped layers 75, 76 and the portions 85, 86 vertically below the masks 72, 73 are shielded from this ion bombardment so that these portions are not etched away during subsequent selective etching of the insulating film 78. Collector, base and emitter electrodes 90, 91, 92 respectively, are then vapour deposited. The i.e. device may also include a resistor formed by a region of the polycrystalline silicon layer, Fig. 4 (not shown) or a diode. Interconnection between a lead conductor (111) from a collector or emitter electrode and a conducting member (112) provided with an insulating film (120) having openings, is achieved by vapour deposition of a metal film (121), or alternatively, after the deposition of the conducting member (112), its thickness in the region (125), Fig. 7 (not shown) is increased to contact the lead conductor (111). The polycrystalline silicon  member 135, Fig. 8c, may have a step in its upper surface and a conducting member 137 deposited on its stepped surface avoids the need for the interconnection.
Patent GB-837375-A (GB)
Title: Improvements in or relating to mixing and agitating machines for concrete and like materials
IPC: B28C5/42
Filed: 1958-09-19
Abstract: 837,375. Mixing appliances. STETTER, G., [trading as STETTER BAUMASCHINENFABRIK, G.]. Sept. 19, 1958 [Dec.4, 1957], No. 30101/58. Class 86 A concrete mixer and agitator which may be vehicle mounted is provided with a water-tank 7 pressurized through pipe 15 with compressed air (which may be derived from the vehicle brake system compressor), and delivering water through pipe 18<SP>1</SP>. Another branch 18<SP>11</SP> (Fig. 2, not shown), may deliver water through the trunnions 8. A metering device may be incorporated. The drum 3 is rotated by an electric motor 10 (which may be operated by the vehicle batteries), through a reversible magnetic transmission. A magnetic brake is arranged to stop the drum when the filling hatch 23 is uppermost. Control may be effected from the driver's cab and from a control panel 25.
Patent GB-520287-A (GB)
Title: Improvements in and relating to transformers
IPC: H01F30/12
Filed: 1938-10-18
Abstract: 520,287. Transformers. AKT.-GES BROWN, BOVERI & CIE. Oct. 18, 1938, No. 30105. Convention date, Oct. 18, 1937. [Class 38 (ii)] A high voltage transformer has its magnetic core divided by gaps, across which the working flux passes, into parts which are insulated from one another and which are arranged to be at different potentials by connection to different points of the winding. The limb 1 which is provided with an oil passage 2 and is connected to the high tension terminal 4, is arranged in contact with the lower annular core member 5 and is wound with cable insulation 9 which separates it from the upper annular yoke member 7. The high tension winding 11 which is wound on the insulating sheath 9, is provided with a concentric slot 14 for oil circulation which registers with similar slots 15 in the yoke rings 5, 7 and is separated from the low tension winding 16 by a second insulating sheath 10. One end of the winding 11 is connected at 12 to yoke ring 5 and the other end is connected to the yoke ring 7. The limb 1 and ring 5 may have radial or evolute laminations, individual members of which may in the case of limb 1, project into the oil passage 2 to increase the cobling. The insulating sheaths may decrease in thickness as the potential across them decreases along the limb and the part of sheath 9 between limb 1 and ring 7 may increase in thickness towards the upper iron surface where a protective ring may be provided. In a three phase arrangement the yoke rings 7 of the limbs may be connected in star and, if desired, earthed when the insulation between 7 and 8 is omitted. The core may be carried on insulators 19 of wood and presspahn and braced at the top by insulators 20 and springs 21. - The oil' may be cooled in a radiator. If the transformer is to be regulatable additional primary and secondary windings 28, 25 Fig. 4 may be arranged on the limb, the primary 28 being supplied through a regulable voltage divider 29 or through a regulable transformer or induction regulator. Transformers having three or more windings are provided with a corresponding further number of concentric yoke rings and insulating sheaths the high tension winding preferably being arranged inside and the low tension outside so that a step by step potential reduction from inside to outside is obtained.
Patent GB-797519-A (GB)
Title: Improvements in or relating to seed cleaners, threshing machines and the like
IPC: B07B1/49
Filed: 1954-10-20
Abstract: 797,519. Thrashing machines: combine  harvesters. MASSEY-HARRIS-FERGUSON GES. Oct. 20, 1954 [Oct. 22, 1953], No. 30236/54. Class 6(3). [Also in Groups II and XXV] In thrashing machines and combine harvesters, superposed and removable cleaning screens 1 and 2 are supported in guides 3 on side-walls 4 and 5 connected by bolts 7 and 8 and a tumbuckle 6, which can be tightened to draw the side-walls towards each other and clamp the screens and released to facilitate changing them.
Patent GB-161230-A (GB)
Title: Improvements relating to burners for petrol air gas
IPC: F23D3/00
Filed: 1919-12-03
Abstract: 161,230. Spensers, Ltd., Nelson, G. H., and. Smith, H. E. Dec. 8, 1919. Atmospheric gas burners.-In a petrol gas burner, layers of wire gauze are arranged in the gas outlet so that the gas flows radially in respect to the burner in a direction substantially parallel to the gauze layers. The gas outlet may, in some constructions, be regulated by compressing the wire gauze. Fig. 2 shows a burner consisting of a shallow cylindrical vessel A, a cover C carried adjustably by means of a screw support D and annular wire gauze layers B arranged in its outlet. A gauze baffle-plate E may be provided in the vessel A. Fig. 4 shows a tubular burner G having a narrow longitudinal gas outlet in which are inserted several wire-gauze strips clamped together, or a folded wire-gauze strip H. Fig. 5 shows a cup-shaped burner M having wire-gauze strips N secured by an adjustable plate 0 mounted on a screw P carried by a perforated plate Q screwing into the burner M. In any of the forms of burner shown, the surface of the wire gauze may be covered with fine gauze b, as shown in Fig. 2.
Patent GB-1505323-A (GB)
Title: Heat-insulating structure
IPC: F16L59/05
Filed: 1976-07-21
Abstract: 1505323 Thermal insulation COMMISSARIAT A L'ENERGIE ATOMIQUE 21 July 1976 [24 July 1975] 30370/76 Heading F2X A thermal insulating structure for protecting a portion of a wall against the effects of a high temperature atmosphere, in particular an atom sphere of aerosols or vapour of liquid sodium within a fast reactor vessel, comprises a plurality of elements 1 mounted end-to-end and each formed of two sectional members 2, 3 of U-shaped cross-section engaged one inside the other. The parallel side flanges 4, 5 of the sectional members 2, 3 form between them a narrow clearance space capable of trapping the aerosols or vapour of the surrounding atmosphere. Within the space limited by the interengaged sectional members 2, 3 there is mounted a flexibl stack of wire fabric or wire mesh elements 6 which have a certain degree of elasticity and constitute an effective thermal barrier. Advantageously, the stack incorporates a series of small plates 7 parallel to the bottom portions of the sectional members 2, 3. Each sectional member 2, 3 is provided at one end with an extension 8 (for simplicity, shown only in respect of member 2) of slightly reduced dimensions and this permits the interengagement of two adjacent sectional members along the length of the structure. Alternatively (Fig. 2, not shown), the sectional members are provided in their side flanges with open slots so as to permit interengagement of adjacent members by virtue of the elasticity provided by the slots. In a further embodiment (Fig. 3, not shown), the sectional members each have an L-shaped crosssection. Further suitable materials for the flexible packing include interlooped wire elements or steel wool or shavings.
Patent GB-227427-A (GB)
Title: Improvements in insect proof cots, beds, and the like
IPC: A47C29/00
Filed: 1924-12-17
Abstract: 227,427. Greene, J. J. Jan. 8, 1924, [Convention date]. Bedsteads fitted with insect-proof covers; occupants, retaining. - An insect-proof cot comprises two pivoted segmental cover frames 13, 14, covered with fine gauze or netting, and each slidable transversely independently of the other, to allow access to the interior of the cot. The ends 10 and sides 12 also are preferably formed of sheet metal, stamped out at 22, and backed with gauze. The travel of the cover frames 13, 14 may be limited by providing tangential extensions 17, and the detachable side bars 18 may carry hook members 19, slotted at 20, 21 to engage over pins on the end frames.