baber/WOPTO huggingface dataset:
Patent GB-996275-A (GB)
Title: Apparatus for measuring relative humidity in the interior of textile packages
Inventor: ANDERSON SAMUEL LESLIE
IPC: G01N25/64
Filed: 1963-04-20
Abstract: 996, 275. Apparatus for measuring relative humidity. WOOL INDUSTRIES RESEARCH ASSOCIATION. May 1, 1964 [April 20, 1963], No. 15667/63. Heading G1S. Apparatus for measuring the relative humidity in the interior of textile packages comprises a probe 1 having a perforated end 2 containing a temperature measuring element 3, wet and dry bulb temperature elements 5, 6 and a pump 9, the parts being linked by flexible tubing 4, 8. The temperatures are measured electrically by Wheastone bridge means. In operation, the probe is inserted in the package and air is drawn through the probe by the pump 9 and past the wet and dry bulb elements, the internal temperature of the package being measured by thermometer 3. The relative humidity of the package may be determined from these measurements.
Patent GB-740533-A (GB)
Title: A process for producing fast dyeings or prints and the manufacture of azo-dyestuffs for use therein
IPC: D06P1/12
Filed: 1951-07-02
Abstract: Dyestuff intermediates containing the group -SO2-CHR-CH2-X attached to a benzene nucleus (R=hydrogen, halogen or alkyl, X= halogen) are prepared by known methods, e.g. forming a sulphinic acid or alkali salt thereof, reacting the product with b -chloroethanol, ethylene oxide or a homologue thereof, and replacing the hydroxyl group by halogen with an agent such as thionyl chloride or hydrochloric acid. The iodine compounds are prepared as in J. Org. Chem., 1950, 414. Specified products are aniline-3-(b -chloroethylsulphone), 2 - methoxyaniline - 5 - (b  - chloroethylsulphone), 2 - methoxyaniline - 5 - (a :b  - dibromoethylsulphone) and its acetyl derivative, and aniline-4 - (b  - iodo - ethylsulphone). Specifications 712,037 and 733,471 are referred to.ALSO:The invention comprises acid azo dyestuffs derived from a diazo component of the benzene series containing as a substituent the grouping -SO2-CHR-CH2-X and a coupling component containing an acidic group; R is hydrogen, halogen or alkyl and X is halogen.  The invention also includes a process of dyeing or printing fibrous materials with the above dyestuffs, with or without after-treatment with a weak alkali, whereby an insoluble dyestuff containing a vinyl-sulphone group is formed which may react with the material being dyed.  The alkaline aftertreatment may be carried out in the presence of a compound containing a reactive hydrogen atom, e.g. an alcohol, amine, mercaptan, amide, or certain ketones and sulphones.  It may also be carried out in organic solvent solution or in the gas phase.  The process may be applied to loose fibres, yarns and fabrics of wool, silk, artificial protein fibres, superpolyamides, cotton, hemp, linen or regenerated or acetylated cellulose, and also to leather, cardboard and paper.  If the dyestuff has no affinity for fibre, the latter is impregnated with the dyestuff solution or the compound is spread on the material.  In the examples (1) wool is dyed with 2-methoxyaniline -5- (b -chlorethylsulphone) --> 1-naphthol-5-sulphonic acid from an acid bath and after-treated with soap solution, (2) wool is dyed with aniline-3-(b -chloroethylsulphone) --> 1-napthol-5-sulphonic acid from a neutral bath, (3) wool is dyed with 2-methoxyaniline-5-(b -chloroethylsulphone) --> 1-(6-chloro-2-methyl-4-sulphonphenyl)-3-methyl-5- pyrazolone from a neutral bath, (4) cellulose acetate is printed with a paste containing aniline -3- (b -chloroethylsulphone) --> sulphonic acid, (6) wool is dyed with aniline -4- (b -iodoethylsulphone) --> 1 naphthol-5-sulphonic acid and after-treated with sodium carbonate and soap, (7) cotton is printed with a paste containing the dyestuff of (1) and thiodiglycol, and after-treated with caustic soda, sodium chloride and barium chloride.  Other suitable dyestuff components are 2-methoxy-aniline-5-(a : 3-dibromoethylsulphone) and 2-naphthol-sulphonic acid. Specifications 712,037 and 733,471 are referred to.
Patent GB-563722-A (GB)
Title: Improvements in means for continuously varying the speed of revolution of chargers for internal combustion engines
IPC: F02B33/34
Filed: 1942-11-09
Abstract: 563,722. Controlling the speed of super-chargers. SOC. ANON. A. SAURER. Nov. 9, 1942, No. 15816. Convention date, Nov. 7, 1941. [Class 7 (ii)] In apparatus for continuously varying the speed of a blower for an internal-combustion engine, particularly for aircraft, the blower is driven through a differential gear, the carrier 8 of which is variably braked by a piston air pump whose ports are controlled by a slide valve 19 and which operates against variable back pressure. The wheels 4, 5 of the blowerdriving train are journalled in the carrier 8 which has a toothed drag 9 connected to a crank-shaft of a pump having a piston 15. The valve 19 is reciprocated by an eccentric 20 to connect a duct 17 alternately to an inlet passage 22 and to a pressure chamber 24 which is throttled by a member 26 controlled by a barometric capsule 29. In normal operation the blower speed is such that the torques of the blower and pump drives are equal. If the air pressure now falls, the throttle 26 is moved to decrease the air escape 25 thereby increasing the torque of the pump and also the braking of the planet carrier. This decreases the air pump speed and increases the blower speed. With constant engine speed, the increased blower speed may be arranged to maintain constant blowing pressure with varying external air pressure. Alternatively, the torque of the air pump may be regulated in dependence on engine speed or pressure of air in the inlet pipe of the engine.
Patent GB-941528-A (GB)
Title: Method and mold for continuous casting of metals
IPC: B22D11/049
Filed: 1961-05-02
Abstract: 941,528. Continuous casting-machines. AMERICAN SMELTING & REFINING CO. May 2, 1961 [May 9, 1960], No. 15827/61. Heading B3F. In continuous casting the mould has a metal wall comprising three annular zones rigidly connected together, the intermediate zone having cooling passages. In operation the inner zone is heated to a high temperature which expands it sufficiently to plastically deform it, the intermediate zone being cooled at such a rate that it acts as a barrier to the flow of heat from the inner zone to the outer zone, thus maintaining the outer zone at a stable temperature at which it is not deformed by the forces exerted upon it by the inner zone and restricts movement of the inner zone due to temperature change. The copper mould 10 may be regarded as comprising a thin inner zone, an intermediate zone with coolant passages 21, 22 and a thick outer zone which resists deformation of the inner zone. The coolant passages feed spray nozzles 25- 30, and a graphite liner 11 is compression fitted and has ribs 61 on the lower part of its wall. The mould is mounted for vertical reciprocation, and may be tapered. Specifications 822,575, 853,854 and 853,855 are referred to.
Patent GB-673892-A (GB)
Title: Waterproof concrete composition
IPC: C04B28/02
Filed: 1949-06-14
Abstract: An oil in water emulsion, suitable for incorporation in cement type concretes and gypsum plasters to render them waterproof, comprises 50-70 per cent of a water-insoluble high molecular weight thermoplastic organic material, dispersed in 30-50 per cent of water which contains 0.25-2 per cent of a high molecular weight alkali metal salt of pure lignin obtained from waste sulphate liquor, preferably according to U.S.A. Specification 2,464,828, the emulsion having a pH of 4 to 7.5.  Optionally a conventional emulsifier such as 0.1 to 0.5 per cent of saponified oleic acid, Swedish rosin oil or pine wood resin may be added. The disperse phase preferably comprises petroleum, natural asphalts or paraffin wax but coal tar, stearine pitch, ester gum, thermoplastic synthetic resins, or natural or synthetic rubber latices may be used.  The alkali metal salt of the lignin may be formed in situ such as by adding the molten asphalt to a hot aqueous alkali solution containing lignin, the pH of the emulsion being subsequently lowered to 9-10 by the addition of boric, oxalic or acetic acid, and further lowered to 4-7.5 by means of hydrochloric, phosphoric or sulphuric acids.  Specifications 254,012 and 288,821, [both in Class 1(i)], are referred to.
Patent GB-601219-A (GB)
Title: Improvements in or relating to jet propulsion systems and jet motors
IPC: F02K9/72
Filed: 1944-08-18
Abstract: 601,219. Jet propulsion gas turbines. AERO-JET ENGINERING CORPORATION. Aug. 18, 1944, No. 15861. Convention date, July 17, 1943. [Class 110 (iii)] Fuel components, such as aniline and red fuming nitric acid, are supplied from reservoirs 33, 37 and forced by pumps 57, 59 into a rotating combustion chamber 7, where they unite and provide the energized fluid for a combined Barker's Mill and propulsion jet 9, 11. The small inclination of the jets causes the rotation of the combustion chamber &c. and provides sufficient power for driving the centrifugal pumps 57, 59 through speed-increasing gears 49. Hand pumps 77, 79 are used for starting. The pump-supply pipes have non-return valves 69, 71 and the pump-delivery pipes have electricallyoperated stop valves 61, 63. The shaft 13 has all axial passage receiving one fuel component from a chamber 32 and conveying it to orifices 21. An annular passage in the shaft conducts the other fuel coinponent from a chamber 30 to orifices 23.
Patent GB-228433-A (GB)
Title: An indicating device for sub-aqueous rock-cutters
IPC: E02B3/02
Filed: 1924-07-02
Abstract: 228,433. Lobnitz & Co., Ltd., and Bedgood, H. O. July 2, 1924. Vertically-driven rock-breakers.-A device for indicating the vertical position of the cutter of a subaqueous rock-cutting apparatus of the type in which a cutter is raised by a steam winch and then allowed to fall comprises a subsidiary winding drum 12 operatively connected by means of friction surfaces 11, 13 to the main winding drum 1 and around which is wound a wire 14 carrying at its end a weighted pointer 18 adapted to move along a graduated scale 20. To obviate errors due to change of length or sag of the hoisting rope the drum 12 and roller 11 are carried upon a swinging arm 9<a>, the outer end 9<c >of which is depressed by the sagging rope so as to lift the roller 11 out of contact with the surface 13.
Patent GB-671054-A (GB)
Title: Process for producing aluminium and its alloys
IPC: C22B21/00
Filed: 1949-06-15
Abstract: In a process for the production of aluminium alloys from aluminium scrap or ores, the ore when such as used is reduced to form a primary aluminium alloy, this primary alloy or scrap being then treated with a molten metal such as zinc, magnesium or mercury, which can be distilled, or with an alloy containing at least one such metal thus forming a liquid intermediary alloy containing aluminium and the extracting metal and a solid residue.  These two products are separated by filtration and the solid residue, still wetted by the intermediary alloy is washed on the filter with pure extracting metal obtained by distillation from the intermediary alloy, the washing liquid being then used in a further extraction operation.  The residue, after washing, may then distilled to recover extracting metal.  The liquid intermediary alloy may be purified by filtration, e.g. on a refractory filter mass of sillimanite or quartzite grains the sizes of which decrease from bottom to top, or preferably this filtration may be performed in the separation furnace before the residue of separation is washed, the said residue being used as the filter mass.  Separation may be performed by applying suction below the filter plate or pressure above or both simultaneously or successively.  The applied pressure which may be 1-3 Kg./cm2 may be increased towards the end of the operation.  Alternatively separation may be performed by centrifuging.  Washing of the residue may also be performed with use of pressure or suction or both.  Aluminium may be added to the liquid resulting from washing of the residue to facilitate wetting of the primary alloy with the extracting metal in the washing liquid.  Extraction, separation and, if desired, purification may be performed on one perforated plate in the same furnace, the first two operations being made simultaneously.  The washed residue may be added to aluminium alloys and subjected to extraction to obtain aluminium alloys containing determined amounts of the other metals which were present with the aluminium in the ore. According to an example, an alloy containing Al 88.7 per cent, Si 11 per cent and Fe 0.3 per cent, is produced by the process of the invention. Specification 537,400 is referred to.
Patent GB-1316163-A (GB)
Title: Fluid-tight flexible and tamper-proof caps for containers having a matching neck profile
IPC: B65D41/48
Filed: 1970-10-27
Abstract: 1316163 Tamper proof closures CAPTOCAP Ltd 27 Oct 1970 [19 Nov 1969] 16083/71 Divided out of 1316162 Heading B8T The subject matter of this Specification is found in the parent Specification 1,316,162. The claims being drawn to the embodiments including the tear strip on the cap skirt.
Patent GB-583214-A (GB)
Title: Improvements in or relating to electron discharge devices of the velocity modulationtype
IPC: H01J25/24
Filed: 1941-12-12
Abstract: 583,214. Velocity - modulated tubes. STANDARD TELEPHONES & CABLES, Ltd., FREMLIN, J. H., and STRACHEY, C. Dec. 12, 1941, No. 16092. [Class 39 (i)]. In an electron discharge device of the kind in which a beam of electrons is velocitymodulated by a high-frequency field and is then reflected back into the same field for energy abstraction, the potential in the reflecting field is made to vary parabolically down to a potential at or near cathode potential. In such a field, the retarded electrons all have the same transit time between successive passages . of the high-frequency field, and if this time is arranged to be an odd number of half-cycles, energy will be given up on both passages. In the simplest case, the potential is constant after the point at or near cathode potential is reached, and the accelerated electrons will not be reflected. To prevent the.loss of.the energy gained by these electrons and to avoid secondary emission when they strike the reflector, the potential curve after the point at or near cathode potential is preferably made to follow an isochronous curve so that all the accelerated electrons are reflected with the same transit time, which is greater by an odd number of half-cycles than the transit time of the retarded electrons. The accelerated electrons thus return their energy to the high-frequency field. In practical embodiment, the reflector 3, Fig. 6, is at high negative potential and interposed between it and the rhumbatron 5 is an apertured plate 8 at cathode potential. The rhumbatron and the plate are provided with conical flanges 7, 9 which give the desired distribution of potential as shown in Fig. 5, in which potential relative to the cathode is plotted against distance from the gap of the rhumbatron. Specification 583,213 is referred to.
Patent GB-1408052-A (GB)
Title: Lattice girder for concrete construction
IPC: E04B5/32
Filed: 1972-08-14
Abstract: 1408052 Lattice girder for fixing displacement bodies in concrete AANNEMERSBEDRIJF BV 14 Aug 1972 [13 Aug 1971] 16164/75 Divided out of 1408051 Headings E1K and E1W A lattice girder for securing displacement bodies 2 in concrete comprises two symetrical sections each having a border bar 6, 7 supporting a series of V-shaped lattice web members connected at their apices to the members of the other section to form a series of square anchor cavities and wherein the bars and members are of identical section steel strip.
Patent GB-312611-A (GB)
Title: Pneumatic shock absorber for motor vehicles and the like
IPC: B60R19/20
Filed: 1929-05-27
Abstract: 312,611. Dall'Oglio, G. May 28, 1928, (Convention date]. Void [Published under Sect. 91 of the Acts]. Collision-guards arranged at the front and rear of a motor vericle comprise a cover being secured to a metal frame a which is preferably beaded and it attached to brackets e. A valve f is provided for inflating the tube c.
Patent GB-569931-A (GB)
Title: Improvements relating to sound reproducing and like apparatus
IPC: H04R7/02
Filed: 1943-10-06
Abstract: Diaphragms for use in microphones, loud-speakers, or other devices for transforming sound energy into electrical energy or vice versa, are made from a fabric composed of yarns of regenerated cellulose obtained by saponifying stretched yarns of cellulose acetate or other organic ester of cellulose.  The diaphragms may be shaped for use in carbon microphones of the single or double button types, microphones embodying a piezo-electric crystal, moving coil microphones, inductor microphones, and loud-speakers of both the moving coil and the moving armature types.  The diaphragms show uniform sensitivity over a wide range of the audio-frequencies, and they operate satisfactorily under conditions of high atmospheric humidity and even when the diaphragms themselves are wet with moisture.  The fabric may be woven in a plain or other kind of weave, and with yarn of various deniers.  The cellulose ester yarn is stretched preferably while in a softened condition produced by treatment with a solvent, latent solvent, or swelling agent.  Stretching may be effected in one or more stages and the yarns may be elongated by as much as 2000 per cent of their original length. Saponification may be carried out by means of an inorganic or an organic saponifying agent in aqueous or alcoholic solution, the yarn or the woven fabric being treated.  In the production of the diaphragms, the fabric made from the regenerated cellulose filaments may be used in a stretched form, the fabric being stretched over a suitable frame and, if desired, stiffened by application of a lacquer, e.g. a cellulose ester lacquer.  Instead of applying a lacquer to the fabric, a powdered cellulose derivative composition may be applied and caused to coalesce to the fabric, e.g. by the application of heat and pressure, or by the application of a solvent or softening agent for the cellulose derivative. Specifications 402,104 and 402,105 are referred to.
Patent GB-560704-A (GB)
Title: Improved machine for the grinding of screw threads
IPC: B24B19/02
Filed: 1942-11-19
Abstract: 560,704. Grinding screw threads. METCALFE, T. Nov. 19, 1942, No. 16390. [Class 60] In a machine for grinding screw threads comprising a master screw by which the work, mounted between centres on a saddle, is traversed across the face of a grinding wheel, the master screw is mounted so as to swivel, whereby the end in service can be changed. The work is mounted between centres a, b mounted on a slide e, the face plate a<1> being driven from the shaft n the end of which is connected to.the master screw o. The latter engages a nut p held in a clamp q having a stem which can swivel in a slide s. Both ends of the screw are adapted to engage the shaft n.
Patent GB-681162-A (GB)
Title: Improvements relating to control systems for dynamo electric machines
Inventor: WILSON GRAHAM RUDGE
IPC: G05D15/01
Filed: 1949-06-21
Abstract: 681,162. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd. Sept. 13, 1950 [June 21, 1949], No. 16420/49. Class 38 (iii) [Also in Group XXXV) In a coiler in which constant tension is maintained by controlling the armature current of the coiler motor, the regulator is biased so that this current is reduced as the coil diameter increases. The field excitation of the motor 1 is controlled in accordance with the amature current by an exciter 4 and a motor driven rheostat 5 substantially as disclosed in Specification 644,868. The exciter however has an additional biasing winding 4c supplied from an exciter 9 which has a winding 9a excited from the busbars 7 through a rheostat 10 ganged to rheostat 5, and a winding 9b excited from the busbars through a rheostat 11 (also ganged to the rheostat 5), and an excitor 12 driven-by the mill (and therefore having an output proportional to the speed of the strip being coiled). At the commencement of coiling when the coiler motor speed is high, the rheostats 10 and 11 provide maximum excitation, thus the excitation of winding 4c will be a maximum, and by opposing the motor current responsive winding 4a this causes the motor current to be increased. As the coil builds up, the rheostat 5 is moved in steps to decrease its value; hence the rheostats 10 and 11 are moved to increase their values, and the bias is reduced. Any variation in strip speed is detected by the exciter 12 and the coiler current adjusted accordingly. In a modification, the armature of the exciter 12 is connected in series with the armature of the exciter 9, whilst its field winding is connected in series with the field winding 9a of the exciter and the rheostat 10 across the busbars 7. In a further modification, the exciter 12 is omitted and the exciter 9 is driven from the mill, its armature being connected in series with the winding 4c across its field winding 9a. In a further modification, the exciter 12 is connected directly in circuit with the field winding 9a and the field winding 9b omitted. In a further modification the exciter 12 is omitted completely. In a further embodiment, Fig. 2 (not shown) the armatures of exciters 9 and 12 are connected in series across the winding 4c, and their fields are connected in series with a rectifier between a tapping point on a voltage divider connected across the busbars and the junction of the motor field winding and the armature of the exciter 4. In a still further modification, the supply to the coiler motor armature is similarly controlled by a biased regulator. Reference has been directed by the Comptroller to Specification 644,868.
Patent GB-145426-A (GB)
Title: Improvements in method of monolithic concrete construction and apparatus therefor
IPC: E04B2/02
Filed: 1920-06-17
Abstract: 145,426. McLeod, W. June 18, 1919, [Convention date]. Reinforced-concrete walls; joist floors with block fining; columns. - Walls, floors, pillars, and arches are formed of hollow blocks of concrete or clay laid to break joint and the interior filled with concrete which forms a solid staggered or zigzag monolithic mass. Horizontal and vertical reinforcements may be added. The blocks 6a, Figs. 6 and 38, are formed with chamfers 6 on the inside, end grooves 2, and top recesses 3. The blocks 9<a>, Fig. 9, have one end open and splayed, and the end blocks 8<a>, Fig. 8, have flat ends without the grooves 2. Figs. 5 and 14 show corner blocks. The interior corners of the blocks are strengthened by fillets 15. In building a wall between two fixed points, spaces 24 which are left are filled with the concrete bv using mould boards 25 clamped together by bolts 29 which pass through handles 27 and either through the spaces 24 or over the wall. At the top of the handles are screws 30 which act as struts when the bolts 29 are tightened. Flat arches may be formed without lintels by reinforcing the interior with bars. A curved intrados, Fig. 54, is formed of concrete with the usual centering and may be reinforced. Pillars and curved work such as shafts are formed of curved blocks as shown in Figs. 46 and 47. Floors, Fig. 56, consist of rows of the blocks separated by spaces 32 which alone are filled with concrete, the blocks being left hollow. A top layer of concrete may be added to make the floor monolithic with the walls; or battens may be laid across the concrete beams to receive floor boards.