baber/WOPTO huggingface dataset:
Patent GB-357812-A (GB)
Title: Process for the treatment of activated carbon
IPC: C01B31/12
Filed: 1930-10-17
Abstract: Activated carbon is rendered more capable of absorbing water vapour by impregnation with solutions of the hygroscopic and dehydrating agents calcium, zinc or magnesium chloride, sodium sulphate, potassium carbonate or glycerine in the maximum proportion of 30 parts of dehydrating agent to 600 of carbon.  In operation, the previously activated carbon is impregnated with a solution of one of the above dehydrating agents, the impregnation being effected in the cold or at boiling point and at atmospheric or reduced pressure. After impregnation, the carbon is dried at a temperature not exceeding 200 DEG  C.  Regeneration may be effected by heating in air or in vacuo or by or in a current of hot gas, e.g. air at 150 DEG  C. Solutions adapted to form the dehydrating agent may be employed, e.g. solutions of calcium hydroxide and hydrochloric acid.  The Specification as open to inspection under Sect. 91 (3) (a), comprises also the use of iron and aluminium chlorides, copper sulphate and sulphuric and phosphoric acids.  This subject-matter does not appear in the Specification as accepted.
Patent GB-665856-A (GB)
Title: Improvements in apparatus for concentrating liquids
IPC: B01D3/08
Filed: 1948-12-01
Abstract: A film-evaporator comprises a steam-jacketted cylindrical column having a tubular impeller rotatably mounted coaxially within it, the impeller having a plurality of apertures opening into its interior and a plurality of radially extending blades projecting outwardly and being at their outer margins deflected rearwardly with relation to the direction of travel of the impeller, liquid to be evaporated being introduced into the interior of the column whereby it is spread into a thin film on its interior wall by the centrifugal action of the impeller.  The drawings show a column 7 surrounded by a shell 12 <PICT:0665856/III/1> <PICT:0665856/III/2> whereby a jacket-space 14 is formed through which steam is passed via an inlet 15 and an outlet 16.  Mounted within the column 7 is a rotating impeller tube 22 which extends upwardly into a dome 9 and which has blades 28 welded to it which are shorter in length than the column 7 so as to leave a head-space x.  That part of the impeller tube 22 within the column 7 has four rows of apertures 26 and that within the dome 9 has a plurality of apertures 27. Liquid to be concentrated is introduced into the head-space x via line 29 and runs as a thin film down the interior wall of the column 7.  Evaporated vapour passes off through apertures 26, up the tube 22, through apertures 27, and out via the dome 9 and line 30 which has a vacuum pump connected thereto. Concentrated liquid flows out via line 31.
Patent GB-855098-A (GB)
Title: Process for the manufacture of copper phthalocyanine that is solvent-resistant in the a-form
IPC: C09B67/00
Filed: 1957-10-04
Abstract: Solvent-resistant copper phthalocyanine is made by heating 3 parts by weight of copper phthalocyanine in an inert organic solvent having a boiling point of at least 100 DEG C. with not more than 1 part by weight of the dichloride of isophthalic or terephthalic acid in the presence of anhydrous aluminium chloride. Specification 496,970 is referred to.
Patent GB-439385-A (GB)
Title: A display device or rack for plaques, crockery and the like
IPC: A47F7/00
Filed: 1934-10-31
Abstract: 439,385. Collapsable stands; racks. ROBINSON, E. B., and JENKINSON, L., c/o Robinson & Sons, Wheat Bridge Mills, Chesterfield. Oct. 31, 1934, No. 31218. [Class 52 (v)] A collapsable display stand for plaques, crockery, and similar articles is made of cardboard, strawboard, millboard, or similar material and comprises a back portion 1, Fig. 2, from which a shelf 2 projects at right angles. The shelf 2 is provided with a number of parallel slots, which may be of segmental form, to receive the lower edges of the plaques &c. 4, and may be formed by cutting the back portion 1 along three sides of a rectangle and securing the material on the fourth side and bending down the flap thus formed. The upper edges of the plaques &c. 4, may be gripped in notches cut in the back portion 1, and extending upwards from the gap 5 formed by bending down the shelf 2. Alternatively the plaques &c. 4, Fig. 4, may be held by two slotted shelves 2, 2a bent respectively downwards and upwards from the back 1. Two rows of plaques &c. 4, Fig. 6, may be supported by three shelves 2, 2<a>, 2<b> the middle shelf 2b having twice as many slots as the shelves 2, 2<a> and supporting the upper edges of the lower row of plaques &c., and the lower edges of the upper row. If the shelf 2b is bent downwards and the shelf 2<a> upwards from the back 1, slots 8 may be cut in the back 1 below shelf 2b to accommodate the upper edges of the lower row of plaques &c. The slots in the shelves may be oblique or parallel to the edges of the shelves. One or more hinged struts may be provided for supporting the stand in erected position.
Patent GB-970066-A (GB)
Title: Liquid-tight carton or like container
IPC: B65D5/06
Filed: 1961-08-31
Abstract: 970,066. Cartons. JAGENBERG-WERKE A.G. Aug. 31, 1961 [Oct. 20, 1960], No. 31359/61. Heading B8P. A liquid-tight carton formed by folding one or more blanks to tubular form, joining the edges by adhesive &c., and closing the ends by opposed W-folds 11, has one or more of the walls, e.g. the wall 2, inclined inwardly from the edge 5 relatively to the plane defined by the adjacent container edges 5, 6 so as to form an upstanding fin seam 9 at the edge 6. In modifications fin seams are formed also at the fold edges. The fin seams and W-folds are formed by heat and pressure, the fin seam avoiding bunching up of the material in the W-fold. The construction facilitates stacking of the cartons since no seam extends outside the cross-section of the container.
Patent GB-806674-A (GB)
Title: Improvements in the preparation of cyanuric acid from urea and/or biuret
Filed: 1956-10-17
Abstract: Cyanuric acid is prepared by heating urea and/or biuret in an inert phenolic solvent therefor to at least 175 DEG  C., until ammonia ceases to evolve, and recovering cyanuric acid as a crystalline precipitate.  Solvents may be phenol, cresol, xylenol, a 50/50 mixture of o- and p-cresol, or cresylic acid.  Weight ratio of urea or biuret to solvent may be 0.5 : 1 to 5 : 1, preferably 1 : 1. Temperatures up to the boiling point of the phenol may be used, or above under superatmospheric pressure.  The separated crystals may be washed with an aromatic hydrocarbon solvent, e.g. benzene, or toluene, to remove residual phenol, or the crystals may be steam distilled and dried.  The solvent may be re-used.
Patent GB-1004964-A (GB)
Title: Two-skin roofing
IPC: E04D13/03
Filed: 1963-08-12
Abstract: 1,004,964. Roofs. R. BECKERS. Aug. 12, 1963 [Sept. 12, 1962], No. 31726/63. Heading E1V. In a two-skin roofing 10 in which an outer skin 20 (Fig. 1) having relatively high mechanical resistance and weather-resisting properties is over an inner skin 30 with high heat-insulating properties, ventilating passages being between the skins 20, 30, the skin 20 has a light-permeable portion or portions 22 with substantially the same other properties as the remainder 31 thereof and the skin 30 has a light-permeable portion or portions 32 with substantially the same other properties as its remainder below the light-permeable portion or portions 22 in the skin 20. The light-permeable portion of the skin 30 may include inner and outer lightpermeable facings 34, 35 (Fig. 2) parallel to the remainder of the skin 30 and a partition or partitions 38a, 38b defining compartments therebetween, which are air-tightly sealed and, if desired, under a partial vacuum. The heatinsulating plates may be formed of facings 34, 35 and 36 (Fig. 4) with corrugated sheets 39 therebetween, the facing 34 being thicker than the facings 35 and 36. Various means of joining the plates 32 and the remainder of the skin 30 are described.
Patent GB-746876-A (GB)
Title: Improvements in and relating to the mixing of concrete or the like
Inventor: KERRIDGE NORMAN EDWARD
IPC: B28C7/02
Filed: 1953-11-17
Abstract: 746,876. Testing consistency of concrete mixtures. STOTHERT & PITT, Ltd. Feb. 1, 1955 [Nov. 17, 1953], No. 31912/53. Class 106 (2). A device for measuring the consistency of concrete comprises a flexible element A which is suspended in the concrete mixer so that there is relative motion between the two, and means are provided for indicating the drag on the element A due to this motion. As shown, the element A, comprising a length of rubber tube or strip, is attached to a lever B whose other end is fixed to a shaft C mounted in a bearing on the mixer, the other end of the shaft' C being secured to a lever D spring-loaded at E and carrying a pointer moving over a scale F. In another embodiment the device is provided on a mixer of the pan type.
Patent GB-1433953-A (GB)
Title: Radial rolling bearing assembly
IPC: F16C19/26
Filed: 1973-07-06
Abstract: 1433953 Bearings NADELLA and A PITNER 6 July 1973 [24 July 1972] 32206/73 Heading F2A A radial rolling bearing assembly comprises an elastically yieldable collar 3 in which is engaged a thin sleeve 6 whose inner surface forms the outer raceway and defines in a plurality of angularly-spaced regions p, q, r a reduced clearance for the rolling elements, the sleeve being pre-formed in accordance with the required profile. The sleeve is sufficiently thin for the said regions to deform radially under the action of the forces transmitted by the rolling elements. The collar may be contained in a cylindrical sheath 2 of cardboard, plastics, or steel, and may be internally profiled to fit the sleeve. The sleeve may be provided with radially extending tabs which axially retain the rolling elements or the cage either directly or through a floating washer. The sleeve may be provided with a radial flange which comprises circumferentiallyextending cut-away parts allowing the inwardly offset segments of the sleeve to deform freely. In one embodiment (Fig. 9), the collar comprises annular extensions which define radial sealing lips.
Patent GB-836987-A (GB)
Title: Improvements relating to polarised electromagnetic relays
Inventor: ROMMEL FREDERICK EMIL
IPC: H01H50/16
Filed: 1956-10-23
Abstract: 836,987. Electromagnetic relays. TELEPHONE MANUFACTURING CO. Ltd. Nov. 14, 1957 [Oct. 23, 1956; Jan. 10, 1957], Nos. 32309/56 and 1017/57. Class 38 (5). [Also in Group XXXIV] A polarized electromagnetic relay has two mechanically independent armatures, each arranged to conduct flux between corresponding ends of a core linked with the operating coil and two parallel magnetic paths at the opposite poles of the polarizing magnet. The coil 1 is mounted on a core 3 with end-pieces 4, each sandwiched between non-magnetic spacers 5. Two " magnetically soft " plates 11 are mounted so as to enclose the end-pieces 4 and spacers 5 with their edges coplaner and facing armatures 20 pivoted on the end-pieces 4. A permanent magnet 10 is secured between the plates 11. Full lines in Fig. 4 show the paths of the permanent flux and the dashed lines show the path of the coil flux, interaction between which urges the armatures to the full line positions. Each armature 20 carries a block 41 with two contact springs 42 bearing contacts 45 and coupled together by a stud 44. The fixed contacts are carried on spring strips 46 and the blocks 41 are each provided with two spring strips 43 arranged to engage adjustment screws 47 so that the armatures may be biased as required. Anti-stiction spacers 39 are provided on the armatures. As shown, the armature may be pivoted on a wire 23 in grooves 21, 22 in the armature 20 and end-piece 4 and located by screws 35 in enlarged holes 37 in the armature. Alternatively (Figs. 6-11, not shown), the armature may be mounted to rock on spring strip supports, or on a flatspacing shim or on a projection forming a rolling surface on the end-piece 4 or on projections from the armature entering indentations in the piece 4. In the latter arrangement the projections may be the ends of screws which can be adjusted to set the gap between the armature and the other magnetic members. Specifications 792,270 and 793,825 are referred to.
Patent GB-1275995-A (GB)
Title: Synthetic linear polyamides and process for the preparation thereof
IPC: C07C51/41
Filed: 1969-06-26
Abstract: 1275995 Copolyamides TOBAY INDUSTRIES Inc 26 June 1969 [2 July 1968] 32471/69 Heading C3R Transparent copolyamides having a relative viscosity above 1À9, a melt viscosity at 300 C. below 20,000 poise and a softening temperature of at least 10 C. are obtained by polycondensing substantially equimolar amounts of a diamine component consisting of x mole per cent bis- (4-aminocyclohexyl)methane and the balance hexamethylene diamine and a dicarboxylic acid component consisting of iso- and terephthalic acids (y% iso) the four reactants being present in amounts satisfying the relationships: x#50; y#10x; y#0À2x+80; and y#0À4x+30. Mixtures of reactants satisfying these relationships are represented by the latched area ABCD in the drawing. 0À2 to 1À2 mole per cent of a mono-acid or amine or 0À1 to 0À6 mol. per cent of a diacid or diamine may be included as viscosity stabilizer. Polycondensation may be effected by hydrolytic, solution or interfacial techniques. Up to 20 wt. per cent of other conventional polyamide components may be included in the copolymer as may the usual additive e.g. heat or light stabilizers, antioxidants or pigments.
Patent GB-212288-A (GB)
Title: Improvements in or relating to vehicle and like lamps
IPC: F21V17/00
Filed: 1922-11-28
Abstract: 212,288. Halvorson. C. A. B. Nov. 28, 1922. Mounting electric lamps in lanterns.-In place of the ordinary glass front of a vehicle or lamp, and secured by similar means, is provided a unit comprising a reflector, a source of light and a glass connected together so that the glass forms a support for the other parts, one of the latter being movable with respect to the glass so as to deflect the beam downwardly. In the form shown in Fig. 2, the reflector and unit comprises a reflector 12 carrying a bulb 13, the reflector being pivoted at 16 to a bearing 17 secured to the glass c. The lower end of the reflector is provided with lugs 22 between which is located a nut 23 engaged by a threaded bolt 24, so that the reflector can be tilted to deflect the beam. To diffuse the beam laterally, the glass c is provided with vertical prisms 27. A second glass 60 with prisms 27 may be provided. In a second form shown in Fig. 5, the reflector 12 is adjustably mounted on the glass c by the engagement of screws 28 with slots 29 and the bulb 13 is adjustably mounted on the glass, the socket member 32 being pivotally mounted in the arms 33 of a yoke, the base portion of which is secured to the glass by a bushing 35 and a nut 36. Extending through the bushing 35 is a screw 40 in the other end of which is provided with an aperture through which one arm of a bent rod 42 is inserted, the other arm engaging an elongated shaft 43 on the member 32. The rod 42 is retained in position by a spring 44 and when the screw 40 is rotated, the rod 42 turns the member 32 on its pivots 46 and then tilts the bulb upwards.
Patent GB-1514207-A (GB)
Title: Water-insoluble azo dyestuffs and process for preparing them
IPC: C09B29/08
Filed: 1975-08-04
Abstract: Novel, water-insoluble azo dyes of the formula 1 <IMAGE> in which D is the radical of a diazo component from the aromatic or heterocyclic series which is free from water-solubilising groups and can be substituted by halogen atoms, nitro, cyano, alkyl, alkoxy, alkylsulphonyl, sulphonamido, trifluoromethyl, acyl, phenoxy, alkyl carboxylate and/or carboxamido groups and, if D is a phenyl radical, this radical can also be substituted by a phenylazo group, A is a hydrogen or halogen atom or an alkyl or alkoxy radical each of which is unsubstituted or substituted by chlorine or bromine atoms, cyano, hydroxyl, alkoxy, acyl or acyloxy groups, B is a hydrogen or halogen atom or an unsubstituted or chlorine- or bromine-, cyano-, hydroxyl-, alkoxy-, acyl- or acyloxy-substituted alkyl, alkoxy, aliphatic or aromatic acylamino or carbamato radical, R is an alkyl radical having 1 to 8 C atoms and n is an integer from 2 to 4, are prepared by diazotising a diazo component of the formula 2 D-NH2     (2> and coupling the resulting diazonium salt onto an azo component of the formula 3 <IMAGE> in acidic to neutral medium. These dyes provide light fast dyeings of high colour strength on synthetic fibre materials.
Patent GB-1126463-A (GB)
Title: Improvements in or relating to gyroscopes
Inventor: BRITNELL CLIVE
IPC: G01C19/30
Filed: 1964-08-10
Abstract: 1,126,463. Gyroscopic apparatus. SPERRY RAND Ltd. Nov. 3, 1965 [Aug. 10, 1964], No.32551/64. Heading G1C. A gyroscopic instrument e.g. a gyro-horizon, directional gyro or gyro-magnetic compass comprises means for applying a continuous precession torque to the gyroscope for rapid initial erection and means for applying a precession torque in repeated pulses for normal operation. The pulses are preferably derived from a transistor multivibrator circuit and are applied to an A. C. torque motor by way of an electronic switching circuit using two transformers. Alternatively, electromagnetic reed relays may be employed in the switching circuit. The changeover from continuous to pulsed erection torque may be made under the control of a thermal time switch, and preferably the pulse repetition period is less than one second with the duration of each pulse not exceeding one fifth of this period.
Patent GB-434164-A (GB)
Title: Improvements in miners' or the like safety lamps
IPC: F21L23/00
Filed: 1933-12-27
Abstract: 434,164. Miners' &c. safety lamps. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. Dec. 27, 1933, Nos. 32645/34 (divided out of 419,594) and 36897/34. [Class 75 (iv)] In a miner's or like safety lamp in which the lower portion of the lamp is fitted with a guarded air-inlet band which includes separable inner and outer gauzes B, C, the inner gauze ring C<2>, C<3> connects the oil vessel V to the upper part A of the lamp and supports the outer gauze ring B<2>, B<3>, whilst the latter supports an outer guard ring D, so that, in the absence of either gauze, this will be indicated or the correct assembly of the lamp will be prevented. In the form shown, the guard ring D rests on an outstanding flange B<1> on the lower part B<3> of the outer gauze ring, whilst the latter rests on a ledge C<1> on the lower part C<3> of the inner gauze ring. Specifications 414,420 and 419,594 are referred to.
Patent GB-964695-A (GB)
Title: Improvements in and relating to multiple colored printing inks and methods of printing using such inks
IPC: C09D11/00
Filed: 1960-09-23
Abstract: A dry, free-flowing printing ink comprises a mixture of dyes, two or more of which are of different colours and are preferentially soluble in different solvents.  Magnetic particles or electrostatically chargeable particles, e.g. iron powder or glass beads, may be added. The inks are applied to a substrate, e.g. in a magnetic or electrostatic printing process, and the image fixed in the desired colour by applying as vapour, liquid or spray a solvent to dissolve one dye preferentially permitting its solution to make the substrate, and then after evaporation of the solvent brushing off the residue of undissolved dye.  Suitable solvents are water, methanol, ethanol, acetone, benzene, toluene, hexane, chloroform, ethylene dichloride, carbon tetrachloride, and "Freons" (Registered Trade Mark) or mixtures thereof.  In examples the following inks and solvents are used with magnetic iron particles in magnetic printing processes. (1) Sudan black and Sudan yellow or 1,1,2,2-tetrachloro-1,2-difluoroethane gives black images, and trichlorotrifluoroethane olive drab ones.  (2) Sudan black, Sudan yellow and du Pont oil red. Trichloromonofluoromethane gives deep red violet printing and trichlorotrifluoroethane gives reddish-orange printing.  (3) Sudan black, Sudan yellow and Amaplast red.  A mixture of trichloromonofluoromethane and 1,1,2,2-tetrachloro-1,2-difluoroethane gives chocolate brown printing and trichlorotrifluoroethane gives yellowish-brown printing.  (4) Sudan black, Sudan yellow and Amaranth.  A mixture of trichloromonofluoromethane and 1,1,2,2-tetrachloro-1,2-difluoroethane gives black printing. Steam or water vapour gives red printing.  (5) Latyl violet and Polar red.  Toluene gives violet printing and ethanol orange printing.  (6) Alizanine direct Violet and Cibacet red.  Steam leaves blue printing and benzene, red.  (7) Hexover blue and Fast light red.  Ethanol gives violet printing, and steam gives red. (8) Leather brown and Hexover blue.  Steam gives brown printing, and acetone blue.  In Example 9 a mixture of Alizanine direct violet, Cibacet red and glass beads is used in an electrostatic printing process.  Fixing with steam gives blue printing whereas benzene gives red printing. Example 10 uses a carrier-free mixture of Hexover blue and Fast light red in an electrostatic process.  Ethanol fixes a violet image and steam a red one.  Specifications 841,148, 848,217, U.S.A. Specifications 2,776,907 and 2,894,799 are referred to.
Patent GB-1318127-A (GB)
Title: Capsules for samples to be investigated by vacuum hot extraction analysis
IPC: G01N33/20
Filed: 1971-07-13
Abstract: 1318127 Resistance-heated containers BALZERS PATENT - UND BETEILIGUNGSAG 13 July 1971 [15 July 1970] 32773/71 Heading H5H A specimen container of graphite for use in the apparatus of Specification 1,251,731, has the surface 4 of its cover 2 which contacts the lower part 1 on closing the container formed as a section of a spherical surface. The contacting surface 3 is constructed as a part-spherical surface with the same radius or is conically shaped. Current is passed through the container via its mounting ends 5, 6, which have depressions to reduce the flow of heat therethrough. The two container parts 1, 2, may be of equal shape and size before the surfaces 3, 4, are provided, by milling or grinding. The invention allows for good engagement of parts 1, 2, even when inaccurately aligned or manufactured.
Patent GB-1436027-A (GB)
Title: Digital slope detector circuit
IPC: G01R19/12
Filed: 1974-07-24
Abstract: 1436027 Slope detection LIGNES TELEGRAPHIQUES ET TELEPHONIQUES 24 July 1974 [27 July 1973] 32773/74 Heading G1U An output signal is produced from one or other of two comparators 6, 6', Fig. 1, in dependence upon whether an input voltage 1 is increasing in magnitude (positive slope) or decreasing in magnitude (negative slope). As shown the input voltage 1 is converted 2 to a corresponding frequency and passed via a non-linear frequency-to-frequency converter 3 (which reduces high frequencies more than low frequencies) to a loop in which pulses E<SP>+</SP> from the frequency-to-frequency converter 3 have subtracted from them pulses E<SP>-</SP> from the feedback path to produce pulses which are divided 5 by a fixed factor k 1  and applied to two frequency threshold comparators 6,6'. The feedback pulses E<SP>-</SP> are proportional in frequency to the integral of the pulses from the divider 5 after division 7 by a second factor k 2  which is varied 8 so as to be proportional to the instantaneous frequency.