baber/WOPTO huggingface dataset:
Patent GB-1044237-A (GB)
Title: Improvements in or relating to the production of gels
IPC: C08K3/24
Filed: 1965-06-10
Abstract: Aqueous polyvinyl alcohol gels are prepared by mixing an aqueous solution of polyvinyl alcohol and a vanadium compound which is soluble in the polyvinyl alcohol solution and wherein the valence state of the vanadium is + 5, at a pH not greater than about 2.  The polyvinyl alcohol may be a partially or completely hydrolysed polyvinyl ester, e.g. polyvinyl acetate.  The vanadium compound may be ammonium, sodium or potassium vanadate, and the pH may be adjusted by adding a strong acid, e.g. hydrochloric or sulphuric acid.  The compositions may be foamed before gelling to provide insulating and packaging materials, and used for coating paper and paperboard. Examples describe the gelling of aqueous solutions of polyvinyl alcohol with ammonium vanadate in the presence of (1) and (2) hydrochloric acid and (3) hydrochloric or sulphuric acid.
Patent GB-790298-A (GB)
Title: Jet propelled aircraft
Inventor: DAVIDSON IVOR MACAULEY
IPC: B64D39/00
Filed: 1953-09-07
Abstract: 790,298. Jet propulsion plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 25, 1954 [Sept. 7, 1953], No. 24721/53. Class 110 (3). [Also in Group XXXIII] A spanwise series of gas turbine engines 5 are mounted between the spans of an aircraft wing, and each is connected by jet pipes 6 to a plurality of nozzles 7. The depth of each nozzle is about 4-5 per cent of the wing chord, and the width about 0.3 to 1 per cent. The pitch of the nozzles is approximately equal to the depth. In Fig. 4, a series of nozzles 14 below the nozzles 7 is supplied with air from a low-pressure stage of the compressor 5a. A slot 10a in the wing is also fed through a manifold 13 with air from the compressor 5a or a separate compressor driven by some or all of the gas turbines. Specifications 787,012 and 790,193, [both in Group XXXIII], are referred to.
Patent GB-189091-A (GB)
Title: Improved manufacture of benzaldehyde
IPC: C07C45/36
Filed: 1922-09-12
Abstract: Catalysts for the vapour-phase oxidation of toluene comprise a mixture of the oxide of a metal or metals of the fifth or sixth periodic groups with the oxide of another metal or metals.  An example of such a catalyst is a mixture of uranium and molybenum oxides, with or without copper.  The catalysts are prepared by soaking a carrier, such as pumice or asbestos, in a solution containing salts-especially the organic salts-of the metals, or in a water-suspension of the finely-divided metal oxides or hydroxides, and afterwards igniting.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the oxidation of any aromatic hydrocarbon containing a methyl group.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 119,517, [Class 2 (iii), Dyes &c.], 156,244, 156,245 and 166,285.ALSO:Benzaldehyde is produced by passing toluene vapour admixed with an oxygen-containing gas over a catalyst comprising the oxide of a metal or metals of the fifth or sixth periodic group mixed with the oxide of another metal or metals. An example of such a catalyst is a mixture of uranium and molybdenum oxides, with or without copper oxide.  The mixed catalysts may be mounted on a carrier, such as pumice or asbestos, by soaking it in a solution containing salts-especially the organic salts-of the metals, or in a water suspension of the finely-divided metal oxides or hydroxides, and afterwards igniting.  The oxygen-containing gas may be air, oxygen, or ozone, or mixtures of these, and steam or diluent gases may be introduced.  Aldehydes; halogen aldehydes.-The Specification as open to inspection under Sect. 91 (3) (a) describes also the oxidation of any aromatic hydrocarbon containing a methyl group under the aforementioned conditions.  Specific starting materials mentioned are the xylenes, pseudocumene, mesitylene and their halogenated derivatives.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 119,517, 156,244, 156,245, and 166,285.
Patent GB-735530-A (GB)
Title: Method of milling whole grain kernals for producing a non-rancidifying product
Inventor: CARLOS SALVADOR FERNANDEZ DIEZ
IPC: A23B9/02
Filed: 1952-10-03
Abstract: A method of producing a sterile non-rancidifying whole grain ground product, i.e. flour and meal, from cereal grain comprises steeping the grain in a hot bath e.g. of an aqueous chemical solution, e.g. an aqueous alkaline bath having a pH of at least p  11.5 or an aqueous acid bath not less acid than about pH 4, to attack the cellulose of the grain covering until it is substantially weakened and the natural enzymes substantially deadened or destroyed, at a temperature e.g. 68 DEG  to 82 DEG  C. and for a time, e.g. half an hour to two hours, sufficient to inactivate the enzymes, comminuting the steeped grain and simultaneously dehydrating the grain with heated gases hot enough to produce sterility, e.g. at not less than 180 DEG  C., in the resulting ground product and preferably the dehydration being continued until the final product has a water content of not more than 10 per cent. In an example wheat grain is steeped for half an hour at 82 DEG  C. in an alkaline bath of approximately equal parts of Ca(OH)2 and NaOH having a pH of 14 after which the grain is washed at 76 DEG  C. for 10 minutes and neutralized at 70 DEG  C. with phosphoric acid of pH 1.2-2 for 10 minutes after which the grain is comminuted and simultaneously dehydrated by an air blast at a temperature of 350 DEG  C., the final product having a temperature of 70 DEG  C. and a water content of 6 to 9 per cent by weight.  In a modification the wheat is steeped in 12 per cent HCl for a quarter-hour at 76 DEG  to 78 DEG  C., washed for 10 minutes at 78 DEG  C., neutralized with Ca(OH)2 solution of pH 13 for 10 minutes and then washed in water at 72 DEG  C. for five minutes, after which it is comminuted in an impact mill and simultaneously dehydrated by hot air or products of combustion at 350 DEG  C.
Patent GB-384965-A (GB)
Title: Improvements in arrangements embodying positive column electric gas discharge tubes for television purposes
IPC: H01J61/52
Filed: 1932-09-06
Abstract: 384,965. Television receivers. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Sept. 6, 1932, No. 24841. Convention date, Sept. 12, 1931. [Classes 39 (i) and 40 (iii).] In a television receiver employing a positive column discharge tube which must be maintained at a high temperature, the air current generated by the Nipkow disc 1, Fig. 2, is prevented from cooling the lamp 3 by a screen 5 having a glass aperture 6, and the lamp 3, Fig. 3, is enclosed in a heating box 4 having a dull glass pane 6 and equipped with heaters 7 to compensate for the heat radiation at the pane 6. The lamp 3 may be bent to cover a large surface area.
Patent GB-907712-A (GB)
Title: Improvements in or relating to apparatus for feeding textile fibrous material to a processing machine
Inventor: FRASER HENRY KENNEDY
IPC: D01H11/00
Filed: 1960-07-16
Abstract: 907,712. Feeding fibrous material. GIDDINGS & LEWIS-FRASER Ltd. July 11, 1961 [July 16, 1960], No. 24843/60. Class 120 (1). Apparatus for feeding fibrous material, such as jute, to a carding or other machine has a spiked lattice operable within a casing and means for creating between the flights of the lattice a zone of air at a pressure higher than that elsewhere in the casing with the object of avoiding choking of the working parts of the lattice with sand, bark and fibrous dust. One form of apparatus has a fan 9 mounted in a duct 10 that merges with two branch ducts 11 located on either side of the casing 2 and leading to the space between the flights of the lattice The end wall of the casing 2 nearest to the feed 7 is constituted by a grid 21 of a mesh sufficient to permit the passage through the grid of air and dust but not fibres. A suction duct 22 is arranged behind the grid 21. Parts of the casing 2 may be hinged to allow access to the rollers. In another embodiment, a fan is mounted between the flights of a lattice and a grid is provided beneath the lower part of the downward flight. The invention has particular application to the machines described in Specifications 831,024 and 840,508.
Patent GB-721755-A (GB)
Title: Magnetic transducer head and method of making same
IPC: G11B5/127
Filed: 1951-10-24
Abstract: 721,755. Magnetic recording and reproducing apparatus. CLEVITE CORPORATION.. Oct. 24, 1951 [June 8, 1951], No. 24858/51. Class 40 (2). [Also in Group V] A magnetic head comprises, in combination, a plurality of ring heads embedded in hardened casting material from which the pole-pieces extend in spaced relationship to each other. In the embodiment described, the individual heads comprising the multiple unit are arranged side by side for recording and reproducing multiple tracks on a record tape, as shown in Fig. 10. The core members are prepared by winding coils 24 on laminations 11 to form one half of an individual head, as shown in Fig. 1, and are then mounted in a partitioned casing 30, Fig. 2, which is then inserted into a mould comprising members 33, 34, 35. The member 33 has apertures through which the ends of the laminations pass, and is secured to polepieces 37, 38 of a magnet 40, against which the laminations are held by magnetic attraction. After the moulding material has been poured and set, withdrawal of the resulting unit 51, Fig. 5, which in effect forms half of a final multiple head, is facilitated by turning screws 46 which bear on a plate 41 inserted between the member 33 and the laminations and detach the moulding from the member 35. Two such mouldings 51, Fig. 10, are then placed together, with a shim 52 between them, and clamped between moulding plates 60, 62 for the final moulding operation.
Patent GB-1151402-A (GB)
Title: Improvements in or relating to Couplings for Branch Conduits Mounted on Hollow Bodies
Inventor: FRITZSCHE OTTO
IPC: A62C35/60
Filed: 1967-05-30
Abstract: 1,151,402. Branch pipe fittings. ROHRWERKE BITTERFELD VEB. 30 May, 1967, No. 24868/67. Heading F2G. A corrosion-resistant coupling for branch conduits and mounted on a curved or flat wall 17 comprises a vertically disposed nipple 1 having a cylindrical extension 5 and a saddle-shaped part 3 on which is located a flat washer 4 and provided with a profiled locking means, such as teeth 8, Fig. 2, between the extension and the part 3 and a screw-thread 7, a saddle-shaped member 9 located over the nipple, and a coupling part 11 which is screwed on to the nipple. The latter is fluid sealed with respect to the member 9 by an annular sealing element 14 and the lower part of the member 9 has locking means 13, Fig. 2, the profile of which is oppositely shaped to that of the nipple. As shown, the edge of the opening 19 in the wall 17 may be flanged and the flange 18 lies in a recess 16 in the nipple the upper end of which carries a sealing element 24 secured by fixing means 25 and has attached thereto by a bayonet, screwed, flanged, or welded connection a coupling part 26. The coupling may be of metal, ceramic or plastics materials or a combination of these.
Patent GB-628125-A (GB)
Title: Improvements in or relating to thermionic valve frequency divider circuits
IPC: H03B19/12
Filed: 1946-08-21
Abstract: 628,125. Valve frequency dividing circuits. O'BRIEN, W. J. Aug. 21, 1946, No. 24985. Convention date, Aug. 27, 1945. [Class 40 (vi)] A frequency divider comprises two amplifier stages, the frequency to be divided being applied to the input of the first stage, the output of which is coupled to the input of the second stage by means of a circuit tuned to the output frequency, and the second stage is also coupled to the first to render it conducting only when positive maxima of the input and output frequency occur simultaneously. The figure shows a frequency divider circuit in which the incoming signals are applied to the grid circuit of valve 1 via a transformer 6 tuned to their frequency. Valves 1 and 2 are reciprocally coupled via coupling circuits 20, 34 tuned to the frequency it is desired to produce, the output signal being derived from the secondary of the tuned transformer 21. The D.C. potential of the screen grid of valve 1 is less than the peak output voltage applied to it from the anode circuit of valve 2 so that valves 1 and 2 oscillate only when the positive going half-cycles of the input signal lie within the positive half-cycles of the output signals, i.e. the valves oscillate at the required output frequency which, although the circuits 20, 23 and 34, 37 are broadly tuned, will always be integrally related to the frequency of the incoming signals. In a modification, Fig. 2 (not shown) for use at low frequencies, the output of the first stage is coupled to the input of the second stage via a resistancecapacity band-pass filter circuit, which is broadly tuned to the required output frequency.
Patent GB-921762-A (GB)
Title: Improvements in or relating to stranding machines for the manufacture of transposed multiple strip conductor
Inventor: HINDS RONALD
IPC: H01B13/02
Filed: 1958-08-05
Abstract: 921,762. Stranding non-circular conductors. BRITISH INSULATED CALLENDER'S CABLES Ltd. Aug. 5, 1959 [Aug. 15, 1958], No. 25058/58. Class 109. In a machine for manufacturing a stranded conductor by drawing non-circular section wires 100, Fig. 8, from bobbins in supports 101, 102, 103, orbiting about an axis of rotation 107 and towards which the wires 100 are deflected by wire guiding devices 118, 119, 120, whilst the bobbin axes are maintained parallel with a fixed plane containing the axis 107 and in which the wires are stranded together with an axis of the cross-section of each wire maintained parallel with a fixed plane containing the axis 107; the guiding devices 118, 119, 120 each form an opening which is so shaped and sized that the wire can oscillate therein about an axis passing through the opening as each guiding device 118, 119, 120 is driven in rotation about the axis of the opening at the same angular speed but counter to the regular orbiting speed of the bobbin supports 101, 102, 103. In Fig. 3 the guiding device comprises a pair of rolls 2, 3 forming an elliptical space 9 having a major axis equal to twice the width of a flat wire strip that is to pass therethrough. The sprocket wheel 12 and the chain drive 24 serve to maintain the major axis of the opening 9 horizontal whilst the guide device orbits about the shaft 107. In Fig. 11 the guiding device comprises a die 33 having an elliptical aperture 34. Fig. 1a shows the position of a flat wire trip 100 when the elliptical aperture 1 is at the top of its orbital path. Fig. 1b shows the position of the flat wire strip 100 when the aperture 1 has orbited through 90 degrees clockwise as viewed from the left-hand end of Fig. 8, the wire 100 then snapping from the full line position to the broken line position as the aperture orbits beyond this point. Fig. 1c shows the position of the flat wire strip 100 when the aperture 1 has orbited to its lowermost position. Fig. 1d shows the position of the strip 100 when the aperture has orbited through 270 degrees, the wire 100 then snapping from the position shown in full lines to the position shown in broken lines as the aperture orbits beyond this setting. The strip 100 thus oscillates, but does not rotate, in the aperture 1 and this oscillation is stated to reduce the bending stresses that are set up about the inner axis of the strip in similar machines employing guiding devices that do not permit such oscillations. Specification 862,028 is referred to.
Patent GB-742990-A (GB)
Title: Combustion chamber for gas turbines
Inventor: TIPLER WILLIAM
IPC: F23R3/14
Filed: 1952-10-07
Abstract: 742,990. Generating combustion products under pressure. SHELL REFINING & MARKETING CO., Ltd. Oct. 5, 1953 [Oct. 7, 1952], No. 25113/52. Class 51 (1). In an air jacketed type of combustion chamber for a gas turbine engine, combustion air is admitted to the flame tube through an inner swirler 18 which surrounds the fuel injector 11 through an axial air inlet 20<SP>1</SP> and through an outer swirler 21 which surrounds the axial air inlet. The flame tube comprises the cylindrical portions 5, 6 connected by the frusto-conical portion 7 and is contained in an outer casing 8 to which air is supplied through the duct 12, air entering the flame tube wall through apertures 13. The downstream end of the fuel injector is covered by a shroud 14 which permits a flow of cooling air over the burner tip. An intermediate cylindrical wall 17 is disposed between the fuel injector 11 and the wall 5 and is surrounded by a shroud 19 having apertures 20 at its upstream end, this forming the axial air inlet 20<SP>1</SP>. The axial position of the injector may be adjusted. A shutter may be provided for restricting the air flow to the outer swirler 21 when the fuel supply is reduced and may comprise a rotatable apertured ring cooperating with a fixed apertured ring. The air swirlers 18, 21 preferably impart swirl in opposed directions.
Patent GB-172114-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B75/24
Filed: 1920-08-31
Abstract: 172,114. Smith, J. H. D. Aug. 31, 1920. Four-stroke-cycle engines. - Ignition occurs simultaneously in a pair of cylinders arranged on opposite sides of a central crank shaft. The engine shown in the Figure has eight cylinders.
Patent GB-1308237-A (GB)
Title: Imines and their use in electro-optic compositions and devices
IPC: C09K19/22
Filed: 1970-05-26
Abstract: 1308237 Imines RCA CORPORATION 26 May 1970 [2 June 1969] 25159/70 Heading C2C [Also in Divisions C4 and H4] The invention comprises compounds of the formula where RO is an alkoxy radical of 1-8 carbon atoms and OM is a branched chain acyloxy radical of 4-10 carbon atoms. The compounds are prepared by reacting a p-alkoxybenzylidenep<SP>1</SP>-aminophenol with a branched acyloxy acid anhydride in pyridine.
Patent GB-749274-A (GB)
Title: Improvements in devices for supporting the legs of furniture
IPC: A47B91/06
Filed: 1955-05-19
Abstract: 749,274. Furniture tips. GOODFELLOW, W. L. May 19, 1955, No. 25267/53. Class 134. A device for supporting a leg of a piece of furniture consists of a moulded circular block A of synthetic resin having a curved periphery a<2> merging into a flat base a and a recessed lip or rim a<3> merging into a flat top a<1>. Moulded into the block A is a screw B having a shank b threaded to its junction with a head which is formed with a flange b<1> having radial ribs b<2> tapering to a circumferential groove b<3> formed adjacent the extreme end of the head of the screw.
Patent GB-648506-A (GB)
Title: Process for the production of glandular extracts
IPC: A61K35/55
Filed: 1948-09-29
Abstract: A therapeutic product is prepared by triturating fresh pineal glands in the presence of an extracting agent having a pH of 5 to 6, thereupon allowing the constituents of the triturated mixture to separate out at a temperature not exceeding 56 DEG F, decanting the supernatant liquor from the sediment and finally purifying the liquor.  Preferably the triturating agent is pumice, powdered glass or sand and the extracting agent is physiological saline solution which has been adjusted to pH 6 by the addition of acetic acid.  The liquor may be pumped by centrifuging or by filtration under sterile conditions and then mixed with a bactericide such as phenol or thymol or an antibiotic such as penicillin or penicillin G.  The mixture may be kept in a refrigerator until required for use.
Patent GB-1009112-A (GB)
Title: Improvements in or relating to upholstered furniture
Inventor: LLOYD ROGER
IPC: A47C7/18
Filed: 1962-07-04
Abstract: 1,009,112. Upholstery. VITAFOAM Ltd. Aug. 21, 1963 [July 4, 1962], No. 25557/62. Heading A4M.  A base, for a divan, bed, chair, settee or the like, comprises a frame 10, 11, 12 having secured thereto a plurality of spaced bars 15 and a plurality of spaced, tensioned fabric strips 16, the strips 16 and bars 15 being substantially at right angles to each other and supporting a preferably perforated hardboard sheet 18 upon which an upholstery pad may be supported. The wooden frame 10, 11, 12 is braced by diagonal members 13 and a plywood panel 14, the fabric strips 16 being secured in tension around the frame ends 11 by buckles 17 before being glued to the bars 15 The hardboard sheet is covered on one face with a sheet of foam rubber or plastics carrying a fabric edge 19a by which it is tacked to the frame and the sheet 19 is covered by woven textile material 20. Side and end cover members 22, 21 are secured to the battens 24 screwed to the underside of the frame, the battens 24 also serving to carry a bottom cover comprising a sheet of hessian 25 stretched over a wire former 26.
Patent GB-322766-A (GB)
Title: Improvements in the treatment of woven and like fabrics
IPC: D06B3/10
Filed: 1928-09-07
Abstract: 322,766. Wilkinson, E. J., Scott, H. M., and Henshilwood, A. B. Sept. 7, 1928. Flocking; filling by depositing fibrous materials from liquid suspensions. - Fabrics of cotton, wool, or other animal or vegetable fibres are " filled" with cellulose, artificial or natural silk, silk, wool, asbestos &c. which is reduced to a fine state of subdivision but not sufficiently to destroy its fibrous nature. The fabric x to be treated passes under a perforated roller b in a tank a containing the powdered cellulose &c. in water to which there may be added starch, china clay, calcium or barium sulphate, asbestos, pigment ,or coloured lakes. The part of the roller b not covered by the fabric is provided with a cover f. The hollow perforated shaft b<1> of the roller b may be connected to a vacuum pump or the liquid may flow through the fabric and deposit the fibres by gravity within the interstices of the fabric. In some cases, the fabric is treated on both sides. Liquids, treating with.-The Provisional Specification describes also the treatment of the filled fabrics with parchmentizing-agents such as sulphonic acid, zinc chloride, &c.
Patent GB-1584286-A (GB)
Title: Method of controlling the motor current in convertor-supplied three-phase motors
IPC: G05F1/12
Filed: 1977-06-20
Abstract: In the case of such control, the requirement exists for a high control dynamic range, for which purpose stabilisation of the magnetic flux, which is linked to the rotor, is necessary by suitable adjustment of the motor current. For this purpose, a calculated disturbance-variance amplitude (ZU1) is applied to three AC voltages (RYB) which are shifted through 120 DEG and are formed in the required-value source (1). The voltages (ZU1R, ZU1Y, ZU1B) which result from this and correspond to the motor supply voltages in terms of frequency, amplitude and phase, are passed to summing points (9, 10, 11) as a disturbance variable and are there compared with a required value/actual value difference of the three motor currents and with a triangular-waveform auxiliary voltage (YB). The required value/actual value difference between the calculated required values of the motor currents (Wi1R, Wi1Y, Wi1B) and the existing actual values of the motor currents (Xi1R, Xi1Y, Xi1B) is carried out in the summing points (12, 13, 14). The main field of application is motor supplies having converter systems, in the case of which the self-commutated invertor is pulsed in accordance with the subharmonic method, and the intermediate- circuit DC voltage is kept constant. <IMAGE>