baber/WOPTO huggingface dataset:
Patent GB-1424118-A (GB)
Title: Colouration process
IPC: C09B44/08
Filed: 1973-07-31
Abstract: 1424118 Dyeing polyester material IMPERIAL CHEMICAL INDUSTRIES LTD 2 July 1974 [31 July 1973] 36291/73 Heading D1B Polyester material is dyed with azo dyes devoid of sulphonic acid and carboxylic acid groups and which are of formula  in which A is an aromatic radical, X is a cationic group, Z- is an anion, Y is a hydrogen atom or an optionally substituted alkyl, aralkyl, cycloalkyl or aryl group, T is a lower alkyl group of from 1 to 4 carbon atoms, n is 1 or 2, the dye being applied from an aqueous bath at a temperature in excess of 120‹C. Polyethylene terephthalate is the preferred substrate to. which the dye may be applied by a conventional exhaustion technique or by continuous impregnation followed by optional drying and a dry or wet heat fixation. The cationic group may be an isothiouranium group, the dye preferably being applied at pH 3 to 4.
Patent GB-1525586-A (GB)
Title: Steps device
IPC: E04H3/12
Filed: 1975-09-03
Abstract: 1525586 Adjustable steps or theatre tiers J BOSSON 5 April 1976 [4 April 1975] 13752/76 Headings E1A and E1S Adjustable steps or theatre tiers comprise two rigid stringers 11 and a plurality of "flat tread or seat supporting elements 13 which are supported by the stringers and securable in the plane of the stringers and in at least two other different orientations with respect thereto. The treads may be supported between the two parallel stringers by sector shaped lugs at each side provided with a plurality of apertures each of which may align with an aperture in the stringer and accept a locking through bolt. Alternatively a parallelogram linkage may be provided linked to all the treads and adjustably fixed at the lower end of the stringers on each side. Further, a toothed sector may be provided on each tread rotated by a longitudinal screw bolt along each stringer. The steps may be free standing or supported against a wall and in the flat folded position A may form a floor or wall facade.
Patent GB-1348366-A (GB)
Title: Fluoran derivatives and their use in imparting colour
IPC: C09D11/00
Filed: 1972-08-03
Abstract: 1348366 Substituted amino phenols NISSO KAKO CO Ltd 3 Aug 1972 [22 Jan 1972] 36392/72 Heading C2C [Also in Divisions C4 and D2] In preparative Example 1 4-hydroxy-2- methyl - 4<SP>1</SP> ethoxydiphenylamine is prepared by reacting 4-amino-m-cresol hydrochloride with p-phenetidine at 180-200‹ C. in presence of zinc chloride. Similarly in preparative Example 2 4 - hydroxy - 2 - methyl - 2<SP>1</SP> - methoxydiphenylamine is prepared by reacting 4-aminom-cresol hydrochloride with o-anisidine.
Patent GB-522750-A (GB)
Title: Improvements in and relating to rock-drilling machines
IPC: E21B21/02
Filed: 1938-12-15
Abstract: 522,750. Rock drills. ROBERTSON, D. DE M. Dec. 15, 1938, No. 36530. [Class 124] In a rock drill, the steel M is detachably secured in a recess in a spindle R which rotates and reciprocates between bushes F and water seals H enclosing a space J to which water is fed laterally by a pipe K and from which water flows through one or more passages N in the spindle into an axial hole S in the steel, each water seal comprising a stuffing box with packing compressed by an independently adjustable gland G. A round steel may be secured to the spindle by means of an enlarged screwed portion, or a hexagonal steel may be secured therein by means of a spring retainer. The lower end of the spindle may be strengthened by means of a lipped collar L sweated thereon. The bushes F are provided with oil holes, and the drill is vented at T.
Patent GB-770231-A (GB)
Title: Steam turbine plants employing forced flow steam generators
IPC: F22B29/12
Filed: 1954-12-17
Abstract: 770,231. Steam turbine plant. SULZER FRERES SOC. ANON. Dec. 17, 1954 [Dec. 17, 1953], No. 36549/54. Class 110 (3). [Also in Group XIII] In steam power plant comprising a forcedflow steam generator or vaporizer 18 heated mainly by radiation, superheaters 21, 23 heated mainly by contact with flue gases, a steam turbine 27, and steam-heated feedwater preheaters 10, 11, 12 (see Group XIII), valves 25. 42 in the turbine steam supply line 24 and a bypass 43 are controlled by a pressure-sensitive device 41. When pressure from the boiler is low at the start, the valve 25 is closed and the valve 42 open.
Patent GB-1511485-A (GB)
Title: Method and apparatus for storing digital video informatio
IPC: H04N11/04
Filed: 1974-08-20
Abstract: 1511485 Storing and retrieving digital video information QUANTEL Ltd 18 Aug 1975 [20 Aug 1974] 36565/74 Heading H4F [Also in Division G4] Digital video information is stored successively bit-by-bit in stores 12-15 under the control of a write clock generator 16 and switches S1, S3-S6, the information subsequently being read-out in the same sequence successively bit-by-bit from the stores under the control of a read clock generator 18 and a switch S2, the information being shifted within the stores during the time between write-in and read-out by an amount sufficient to cause the oldest information bits to appear at the outputs of the stores, such shifting being effected by an excess clock generator 17. The stores 12-15 may comprise shift registers and may each include a set of three parallel multiplexed shift registers, which shift registers may be integrated circuit devices. Writing into the stores is non-uniform, whereas reading from the stores occurs at a uniform rate determined by the generator 18. Each switch S1-S6 may be operated by a four-stage ring counter (not shown) which operates in conjunction  with a switch control 20 to maintain the correct timing sequences. The input and output switches Sl, S2 may be operated in the picture blanking intervals between active picture periods. The excess clock pulses from generator 17 may be applied to the stores immediately following the write-in clock pulses or immediately preceding the read-out clock pulses, or may be divided into two or more bursts of pulses applied between writing-in and reading-out of the stores. Twenty-four circuits, each as shown, may be arranged in parallel to receive 24-bit coded input signals, the arrangements being clocked simultaneously by the writein clock pulses. The invention may be applied to digital timebase correction wherein a delay unequal to one line period is associated with the readout information.
Patent GB-978202-A (GB)
Title: Improvements in or relating to electro-acoustic transducers
IPC: G10K9/122
Filed: 1962-09-27
Abstract: 978,202. Piezo - electric instruments. SIEMENS & HALSKE A.G. Sept. 27, 1962 [Sept. 29, 1961], No. 36663/62. Heading H4J. A membrane of an electro-acoustic transducer consists of or includes a plate of piezoelectric material coated on each side with a layer of metal and is mounted by being gripped in the region of its periphery, the roughness of each of the two sides of the piezo-electric plate not exceeding five microns. The membrane is preferably mounted between a rigid abutment and a resilient abutment. A microphone or loudspeaker comprises two discs 4, 5 (Fig. 1) of piezo-electric material each of thickness about 0.2 mm. and produced by grinding, followed by lapping or polishing. Each has a surface roughness of less than five microns and each is coated on opposite sides with metal layers 8, 9, 10, 11. Layers 8, 9 are cemented or soldered together. The discs 4, 5 are gripped between a rigid annular spigot 6 and a ring 7 of soft rubber, foam material or soft thermoplastics. The metal layers each have a diameter of about 0.91 times the diameter of the rigid abutment. Metal layers 8, 9 as well as metal layers 10, 11 are provided with contacts (not shown) for electrical connections. In a modification rigid abutment 12 (Fig. 2) is of acute-angled cross-section, the edge of the angle being rounded off. A spring ring 13 of sheet metal abutting cover 2 or attached thereto provides a resilient abutment. Alternatively the rigid abutment is a metal toroid 14 (Fig. 3) and the resilient abutment is a soft rubber toroid 15.
Patent GB-1002775-A (GB)
Title: Process for regeneration of recycled solutions used for the production of hydrogen peroxide by means of alkylanthraquinones
IPC: C01B15/023
Filed: 1963-09-18
Abstract: Alkyltetrahydroanthraquinones are produced from the regenerable inert substances, when the recycle solution used for the manufacture of H2O2 by a process involving successive phases of hydrogenation and oxidation of an alkylanthraquinone is regenerated by contact with a halide selected from halides of Al, NH4, Ba, B, Sn, Fe, Mg, P, K, and Zn, the reaction medium being raised to and maintained at a temperature close to the boiling point (see Division C1).  The regenerated solution may be cooled to precipitate the alkyltetrahydroanthraquinone which is oxidized e.g. in an alkaline medium to form the corresponding quinone which is introduced into the recycle solution.  In the examples 2-ethyl, 2-isopropyl, 2-tert.-butyl, 2-amyl, and 2-octyl alkylanthraquinones are used with the formation of the corresponding alkyltetrahydroanthraquinones. The solvent used may be equal volumes of an aromatic hydrocarbon and a secondary alcohol containing 9 carbon atoms.ALSO:In the production of hydrogen peroxide by successive phases of hydrogenation and oxidation of alkylanthraquinones, the recycled solution is regenerated by contacting it with a halide selected from the halides of Al, NH4, Ba, B, Sn, Fe, Mg, P, K and Zn, the temperature of the reaction medium (i.e. the degraded recycled solution and the halide) being raised to and maintained at value higher than room temperature, preferably at a temperature close to the boiling point, until a major proportion of the regenerable inert substances has been converted into alkyltetrahydroanthraquinones. The recycled solution may be treated after the phase of oxidation and extraction by water of the hydrogen peroxide.  After treatment with the halides the solution may be cooled to a temperature sufficiently low to precipitate a major proportion of the alkyltetrahydroanthraquinone which is oxidized to the corresponding alkylanthraquinone which is reintroduced into the recycled solution.  In the examples 2-ethyl, 2-isopropyl, 2-tert-butyl, 2-amyland 2-octyl alkylanthraquinones are used in a solvent comprising equal volumes of an aromatic hydrocarbon and a secondary alcohol containing 9 carbon atoms.  Comparative examples indicate that the use of NaF, the absence of a halide, and boiling the solution in the presence of air or an inert atmosphere give practically no regeneration.
Patent GB-1533204-A (GB)
Title: Flexible tubing
IPC: B29C48/153
Filed: 1977-09-05
Abstract: 1533204 Flexible tubing H H LE VEEN 5 Sept 1977 [7 Sept 1976] 36947/77 Heading F2P Flexible tubing comprises an extruded tubular generally homogeneous elongated wall portion 11 and an extruded strand portion 12 embedded in said wall by co-extension therewith and extending helically lengthwise thereof, one of said wall or strand portions being radiopaque and the other optically translucent. The wall may be of silicone rubber and the strand a stiffer silicone rubber containing a radiopaque pigment, e.g. calcium carbonate, barium sulphate bismuth oxychloride &c. Polysulfone, polybutylene, polypropylene, ultra high weight polyethylene, ethylene vinyl acetate and urethane plastics may also be used. The strand may be reinforced with glass fibres.
Patent GB-326510-A (GB)
Title: Improvements in or relating to evaporators
IPC: B01D1/04
Filed: 1928-12-14
Abstract: 326,510. Wade, H., (Chemische Fabriken J. Bellak). Dec. 14, 1928. Film evaporators; multiple effect evaporators.- In evaporators of the type in which the liquid to be evaporated or concentrated trickles down over steam-heated tubes, the total heating surface of the tubes decreases in successive horizontal rows of tubes or in successive groups of such rows from the highest row downwards. A multiple effect evaporator comprises three similar elements, 1, 2, and 3. In each element the number of tubes in each horizontal row decreases from four at the top to two and then to one at the bottom. Liquid to be evaporated is fed on to tubes 5 from feeding devices consisting of pipes 28 provided each with a longitudinal slot into which a bar 30 of wedge shaped section can be moved to adjust the flow. The liquid dripping off the tubes is caught by trays 26 and conducted on to the next group of tubes, from which trays 25 or 25<1> conduct it to the last group of tubes. The concentrated liquid passes by a duct 43 to a receptacle 44. Steam is supplied to all the tubes of the first element in parallel by a supply pipe 39, communicating with chambers 37; after passing through the tubes the air and residual steam is removed from the chambers 38 by a suction duct. The steam produced in the first evaporating element passes through the tubes of the second element, and so on, in the known manner. The evaporating chamber of the third element is connected to a condenser by a pipe 42. Each heating tube 5 is provided with a throttle valve 18 at the steam entry, and with outlets 20, 21, for air and condensate respectively at the other end.
Patent GB-789634-A (GB)
Title: Reciprocating electromagnetic pump
IPC: F04B17/04
Filed: 1955-12-23
Abstract: 789,634. Electro-magnetic pumps. BENDIX AVIATION CORPORATION. Dec. 23, 1955 [Jan. 25, 1955], No. 36975/55. Class 102(1). In an electromagnetic reciprocating piston pump, the electromagnet 24 is slidably mounted on the cylinder 1 in order to adjust the stroke of the piston. An adjustable stop 27 adjusts the position of the electromagnet against the action of a spring 26. In a modification the electromagnet is engaged by a bellows the interior of which is connected to the outlet of the pump. In another embodiment the ends of the cylinder are screw-threaded to receive outlet and inlet connections between which the electromagnet is secured in preset position on the cylinder. In the embodiment shown the cylinder 1 is mounted between inlet and outlet connections 3, 4, the latter engaging the casing 14 and the former being releasably supported on a spring 16.
Patent GB-840461-A (GB)
Title: Improvements in insulated conductors
Inventor: SCHATZEL RUDOLPH ALBERT
IPC: C08K5/02
Filed: 1957-11-27
Abstract: A flame- and age-resistant insulating composition for an electrical conductor comprises 55 to 76% by weight polyethylene, 2 to 5% butyl rubber or polyisobutylene, 10 to 34.4% antimony trioxide or zinc borate, and 8.6 to 21.5% chlorinated paraffin, diphenyl or naphthalene.  Stabilizing agents such as phenoxypropylene oxide, basic silicate of lead, or a monohydrated tribasic lead salt of maleic acid, and fillers such as silica aerogel, or carbon black may also be included.
Patent GB-1180860-A (GB)
Title: Improved Fishing Reel.
Inventor: SMALL EDWARD FREDERICK
IPC: A01K89/01
Filed: 1968-08-02
Abstract: 1,180,860. Fishing reel. E. F. SMALL. 2 Aug., 1968, No. 37045/68. Heading A1A. A fishing reel of the kind having means 34 at its forward end for retaining the line on a spool 32, and means 36 towards its rear for winding in line when positioned adjacent the retaining means 34, or permitting line to run off the spool 32 when spaced apart is provided with a removable cap 40 having a guide eye 48 for constraining the line to leave the reel substantially parallel to the rod axis, allowing operation under either "open face" or "closed face" conditions. As shown, a body 10 mounts a shaft 18, operable by a handle 20 and driving a sleeve 26 rotatably mounted on a shaft 28 through a ring gear (18a), Fig. 5 (not shown), co-operating with teeth (26a) on the sleeve 26. A spindle 28a connected to the shaft 28 is movable axially by depression of a trigger lever 30 during the back swing of the rod and the spool 32 together with the flyer 36 and cup 34 are thus moved rearwardly, the flyer 36 being latched in rearward position by engagement of a spring ring in a groove in the sleeve 26. On releasing the trigger 30, a spring (S) returns the cup 34 and spool 32 to the forward position allowing the cast to be made, and as the handle 20 is rotated to start reeling in the flyer 36 is released, returning to the pick-up position adjacent the cup 34.
Patent GB-1510544-A (GB)
Title: Multiple pane assemblies
IPC: E06B3/67
Filed: 1975-09-10
Abstract: 1510544 Multiple glazing unit SAINTGOBAIN INDUSTRIES 10 Sept 1975 [12 Sept 1974] 37233/75 Heading E1R A multiple glazing unit comprises three sheets 11, 12, 13, the intermediate sheet 13 is not more than 5 m.m. from one of the outer sheets; the air spaces between sheets 11 and 13 and between sheets 12 and 13 are connected so that air flow from one to the other is restricted according to the dimensions of the unit. The frame 14 has a channel 15 in which the sheet 13 is mounted, the channel having grooves 16 which allow air flow past the sheet. Alternatively, sheet 13 may be mounted on felt strips (Fig. 1 not shown). The frame is hollow and may contain hygroscopic material. The outer sheets and the frame are held together by the sealing compound 17. For Figure see next column
Patent GB-1521105-A (GB)
Title: Bipolar crossed-field switch tube and its use in current limiting
IPC: H01J17/14
Filed: 1975-09-15
Abstract: 1521105 Cold-cathode tubes HUGHES AIRCRAFT CO 15 Sept 1975 [18 Sept 1974 28 Feb 1975] 37756/75 Heading H1D A bipolar crossed field switch tube and A.C. power system in combination comprises three concentric electrodes 16, 26 and 24 defining two concentric annular inter-electrode spaces 30, 28, wherein the inner electrode 24 and the outer electrode 16 are connected together, e.g. through discs 14, 20 and apertured collar 22, to one A.C. pole so that one of these electrodes, e.g. outer electrode 16, acts as a cathode during one-half of the A.C. cycle and the intermediate electrode 26 acts as a cathode during the other half of the A.C. cycle, and wherein there is selectively provided, Fig. 4, in both of the interelectrode spaces 30, 28 a magnetic field 58, 56 which is concave, as shown, towards the respective cathode in each half-cycle, the switch tube being non-conductive in the absence of the magnetic field. With the magnetic field as shown in Fig. 4, i.e. concave towards cathode 16 and passing out through the electrodes, a reduced voltage drop across the gap 30 is achieved due to the enhanced electron confinement. With the polarity reversed similar conditions are present in the gap 28. Thus, the tube conducts equally in both directions and in either case is turned off simply by removing the magnetic field. The tube may be used in an A.C. current limiter circuit, Fig. 1 (not shown).
Patent GB-1313443-A (GB)
Title: Triiodo-phenylalkyl ethers their application in x-ray contrast agents and process for their production
IPC: C07C227/16
Filed: 1971-08-11
Abstract: 1313443 X-ray contrast compositions BRACCO INDUSTRIA CHIMICA SpA 11 Aug 1971 [15 Dec 1970] 37777/71 Heading A5B [Also in Division C2] X-ray contrast compositions comprise 3-[(3- acylamino-2, 4, 6-triiodo-phenoxy)-alkoxy]-2- alkyl propionic acids of formula (I): in which acyl denotes acetyl or propionyl, n is 2, 3 or 4, and alkyl means methyl or ethyl, or a physiologically acceptable metal or amine salt thereof, as shadow-giving component, and a carrier. The X-ray contrast agents are especially well suited for use in cholezystography and are preferably administered orally.
Patent GB-1428858-A (GB)
Title: Plastics spring
IPC: F16F1/02
Filed: 1973-08-09
Abstract: 1428858 Plastics springs HERCULES Inc 9 Aug 1973 37830/73 Heading F2S A spring for use in upholstery comprises a hollow corrugated shell of plastics material. Considering the corrugations as annular peaks 12, 14 separated by annular valleys 16, 18, there are required to be either (a) a first group of valley bottoms 16 at a first distance R b  from the spring axis A-A and a second group of valley bottoms 18 at a second distance r b  from the axis, alternating with the first group; and/or (b) a first group of peaks 14 at a first distance R p  from the axis and a second group of peaks 12 at a second distance r p  from the axis, alternating with the first group. In Fig. 3 (not shown) the peaks are all at the same distance, whereas in Fig. 4 (not shown) the valley bottoms are all at the same distance. In Figs. 5-8 there are two groups of peaks and two groups of valley bottoms as in Fig. 1, but, whereas in Fig. 1 both the valley bottoms and the peaks are flat when considered in cross-section, in Fig. 5 (not shown) the valley bottoms are curved, in Fig. 6 (not shown) the peaks are curved, in Fig. 7 both valley bottoms and peaks are curved, and in Fig. 8 (not shown) the walls of the valleys are convexly curved. The spring has a short fully compressed height, since the valley bottoms and peaks can telescope within each other (Fig. 2, not shown). Air passages (not shown) are provided in the walls to aid compression. The force-displacement curve is non-linear, and similar to a conical wire coil spring. Production.-The spring is made from polypropylene in two stages. Firstly a tubular parison is extruded. The parison is then placed in a mould of equal length and blow-moulded to expand it into the contour of the mould. The thickness of the walls of the finished spring varies from 9 to 43 mils depending on the diameter of the spring at that point.
Patent GB-975605-A (GB)
Title: Improvements relating to the production of foams
Inventor: KLAUSNER KENNETH
IPC: C09K23/00
Filed: 1962-10-05
Abstract: A homogeneous aerosol composition for producing a foam of limited stability comprises, by weight, (1) 26 to 64% of a saturated aliphatic monohydric alcohol containing 1 to 3 carbon atoms or a dialkyl ketone in which the alkyl groups contain 1 to 3 carbon atoms, (2) 28% to 64% of glycerol, a monoalkylene glycol in which the alkylene group contains 2 to 4 carbon atoms, or a polyalkylene glycol in which the alkylene groups contain 2 to 4 carbon atoms, (3) 0.5% to 5% of a surface-active agent, and (4) 2% to 30% of a liquefied normally gaseous propellant, the surface-active agent being soluble in either (1) or (2) but not in both and the propellant being soluble in either (1) or (2) and having a solubility not exceeding 15% by weight in the other. Component (1) may be ethyl, n-propyl or iso-propyl alcohol, acetone or methylethyl ketone; (2) may be glycerol or ethylene, diethylene, triethylene, tetraethylene, propylene, or 1 : 3-butylene glycol or a polyethylene glycol of M.W. 200, 400, or 600. Either component may be a mixture.  The wetting agent may be a fatty acid-ethylene oxide condensate, nonyl phenoxy-polyoxyethylene ethanol, glyceryl monostearate, diglycol laurate or oleate, sulphated fatty alcohols or fatty acids, or a quaternary ammonium salt.  The propellant may be a chlorofluorinated hydrocarbon.