baber/WOPTO huggingface dataset:
Patent GB-399151-A (GB)
Title: Improvements in or relating to photographic processes
IPC: G03C1/825
Filed: 1932-03-21
Abstract: 399,151. Photographic processes; colour photography. JOHNSON & CO. (PAPER), Ltd., A. H., 171, Queen Victoria Street, and MARTINEZ, M., 10, Adelphi Terrace, Adelphi, both in London. March 21, 1932, No. 8367. [Class 98 (ii).] In processes of colour photography wherein a coloured gelatin or like colloid layer is differentially hardened, in proportion to the silver content of an image in, under, over, or brought into contact with the layer, by treating the layer in the presence of the image with a bath of the kind used in the ozobrome process, the coloured layer is produced by colouring the colloid in aqueous solution with a dye which has been separated from an alcoholic solution in a fine state of subdivision and remains undissolved in the water in the colloid layer, and forming the layer therefrom. By this means the general hardening action of the dye on the colloid which occurs mainly when the dye is in aqueous solution is avoided. The layer may be produced by preparing a strong solution of a spirit-soluble dye in alcohol and adding to a gelatin solution. Alternatively a previously made suspension of a dye may be mixed with the gelatin solution. In an example an aqueous solution of indigo carmine is mixed with an aqueous alcoholic solution of auramine and the resulting suspension added to a gelatin solution. If a colloid layer coloured in this manner is coated on a photographic sensitive emulsion on a paper base, a print may be made from a black and white negative, the light affecting the emulsion being mainly that passing through the interspaces between the dyed particles ; development, fixing, and treatment with the ozobrome bath yields a positive print in coloured gelatin. If the paper is of the stripping variety, three such prints, produced from component colour-record negatives may be superimposed to yield a picture in colours. The Provisional Specification describes also the use of indigo-carmine for blue, carmine for red, and the product of mixing solutions of indigocarmine and auramine for green ; the use of acetone, oils, ether and the like as solvents for the dyes ; and the use of a mixture of coloured particles coated on a panchromatic emulsion so that after exposure, development, &c. and treatment with the ozobrome bath, a multicolour screen picture in coloured gelatin results.
Patent GB-804173-A (GB)
Title: Improvements in or relating to machine belting
Inventor: BIRT STANLEY
IPC: F16G1/04
Filed: 1955-03-23
Abstract: 804,173. Belting. GANDY, Ltd. March 2, 1956 [March 23, 1955], No. 8384/55. Class 80 (1). [Also in Group VIII] Machine belting comprises a sheet of fabric having on one surface a coating of a flexible non-vulcanizable vinyl polymer, e.g. polyvinyl chloride, folded to form a double ply with said coating forming the external surfaces, the internal surfaces of the folded sheet adhering to one another by means of a flexible adhesive layer, e.g. balata gum. The fabric may be cotton duck or may be made from other natural or synthetic fibres, e.g. rayon, nylon or " Terylene " (Registered Trade Mark). The belting may be produced by coating one face of the fabric with the vinyl polymer, and the other face with a flexible adhesive, folding the coated fabric and causing the two plies to adhere together by the application of heat. Any slight gap between abutting edges may be sealed by the application of heat, the application of a flexible non-vulcanizable vinyl polymer strip or solution, or a strip of fabric impregnated with a flexible non-vulcanizable vinyl polymer solution or dispersion.
Patent GB-1380926-A (GB)
Title: Compositions containing viscous materials
IPC: B65G53/30
Filed: 1971-04-01
Abstract: 1380926 Transporting solids in liquids HUMPHREYS & GLASGOW Ltd 29 March 1972 [1 April 1971] 8399/71 Heading F1R Viscous material is stored or pumped in the form of particles suspended in a liquid medium of a density substantially equal to that of the viscous material. The viscous material, e.g. bitumen, may be in spheroidal pellets <SP>1</SP>/ 16 -<SP>1</SP>/ 4  in diameter. A fine mineral e.g. clay, silt or baryta may be mixed with the liquid medium to increase the apparent density. The composition may be gently agitated to ensure that no settling takes place and viscosity may be maintained by chilling.
Patent GB-720850-A (GB)
Title: Dyestuffs of the naphthoquinoneimine series
IPC: C09B13/02
Filed: 1953-03-26
Abstract: The invention comprises dyes obtainable by condensing naphthazarin intermediate, i.e. 5-amino - 8 - hydroxy - 1 : 4 - naphthoquinone - 1 - imine, with an aminobenzene containing a hydroxyalkyl group as a nuclear substituent, preferably in excess of 1.5-3 mols.  In examples, naphthazarin intermediate is heated in acetic acid in presence of sodium acetate with m - amino - benzyl alcohol or with m - amino - phenyl methyl carbinol. Dyeing examples are given, in which the products give bluish-red shades on cellulose acetate.  Other aminobenzenes specified are 2-methyl-5-amino-benzyl alcohol, 4 - methyl - 3 - amino - benzyl alcohol, 2 - methoxy - 5 - amino - benzyl alcohol, 4 - methylol - 5 - amino - benzyl alcohol, p - amino-phenyl ethyl alcohol.
Patent GB-1516056-A (GB)
Title: Mixing apparatus
IPC: B01F35/60
Filed: 1977-03-01
Abstract: In the case of mixers, whose mixing screw is mounted inside the mixing vessel, there is the possibility for material to be mixed to penetrate the screw bearing. As a result, bearing friction is increased which may result in overloading of the drive device or in seizing of the bearing. The novel mixer therefore contains in the bearing (6, 4) of the mixing screw (1) at least one temperature sensor (11 to 14) which indicates the temperature increase resulting from increasing bearing friction and makes it possible to eliminate the cause of increased bearing friction, before the mixer suffers major damage. <IMAGE>
Patent GB-413439-A (GB)
Title: Manufacture of condensation products from urea or thiourea or derivatives thereof
IPC: C08G12/12
Filed: 1933-03-21
Abstract: Condensation products of urea or thiourea or their derivatives or mixtures and formaldehyde which are soluble in water are prepared by condensing not beyond the hydrophile stage one molecular proportion of urea or thiourea or a derivative of either of them or a mixture of them with at least two molecular proportions of formaldehyde or an agent yielding formaldehyde, and drying, and if desired comminuting, the solution thus obtained in the absence of condensation accelerators.  The condensation may occur in the presence or absence of catalysts and the solution may be dried on a roller or a boric drier or by atomizing or in vacuum.  The product may be dissolved in water to yield a clear hydrosol.  Substances capable of condensation such as urea, thiourea, dicyandiamide, phenol and aromatic acid amides or sulphamides such as benzamide or toluenesulphamide may be added at any stage of the process.  The products may be used as adhesives, stiffening agents and varnishes for surfaces such as wood, metal, leather and pottery or for impregnating porous articles such as fabrics, paper or leather, wood pulp, cotton waste, sawdust, powdered leather, corkmeal, asbestos or talc.  The impregnated articles may be dried and pressed.  Cellulose fibres may be added to the condensation product and after grinding the powder may be dissolved in water to yield a varnish.  Moulding powders may be prepared by adding the filling materials at any stage of the condensation, drying and grinding the product.  In examples: (1) thiourea is added to a clear condensation solution of urea and formaldehyde and the product dried in a vacuum to yield a product soluble in water.  Glazed wall tiles may be prepared by painting a solution of the powder and lithopore in water into a porous tile. (2) A dried condensation product of urea and formaldehyde is mixed with thiourea, dissolved in water and used to impregnate paper, which may be moulded into laminated paper and tubes.  (3) A dried condensation product of urea, thiourea and formaldehyde is mixed with thiourea, dissolved in water, kneaded with a - cellulose and the product dried and ground to yield a moulding powder.  (4) A condensation product of urea and formaldehyde is mixed with a - cellulose, dried, ground with thiourea and ultramarine and dissolved in water to be used as an impregnating agent for paper. Other filling agents and colouring matters may be used.  (5) Urea is added to a condensate of urea and formaldehyde from which some water has been removed and the product is dried, ground and dissolved in water to use as an impregnating agent for a textile web which is then moulded into a laminated product.  (6) Urea is condensed with formaldehyde and the product is condensed with thiourea in the presence of formic acid and then dried. Specifications 373,184 and 386,328 are referred to.
Patent GB-213927-A (GB)
Title: Improved manufacture of weldless chains
IPC: B21L15/00
Filed: 1924-04-04
Abstract: 213,927. Ecseci, S. Kiss-, and Maschinen-und Metallwerke vorm. A. F. Bechmann Ges. April 5, 1923, [Convention date]. Flat-folded link chains.-In the manufacture of chains, each link of which has two eyes at right-angles, from bars wherein the eyes are completed after the bar has been passed into the eye of a finished link, the preliminary step in the production of the eyes comprises the splitting of the bar near the ends a of the blank, either before or after the blank is threaded through a finished link by shearing the halves b, c asunder, as shown in Figs. 3 and 4. The middle of the bar may be bent simultaneously to the shape shown at d. The bar is then bent to the form shown in side and end views in Figs. 7 and 8, the split parts b, c being caused to gape apart as shown. The bar is then threaded through a finished link and the parts b, c are opened out to form half-eyes g, as shown in Fig. 11. The link is finally bent up as shown in Fig. 12 until the half-eyes are brought together. The several operations may be performed in a machine in which the finished link is returned to the initial position for a blank to be threaded through it. According to the Specification as open to inspection under Sect. 91 (3) (a) the initial blank may be first bent to the shape shown in Fig. 7, the splitting shown in Fig. 8 being then effected by sawing. This subject-matter does not appear in the Specification as accepted.
Patent GB-740995-A (GB)
Title: Improvements in or relating to textile cot
IPC: D01H5/74
Filed: 1953-03-30
Abstract: A textile cot has a fibre-drafting surface composed of a base composition of vulcanized oil-resistant synthetic rubber-like material having incorporated therein a minor proportion of finely-divided particles of synthetic rubber composition less oil-resistant than the base composition.  The base composition may comprise butadiene-acrylonitrile copolymer and the particles may comprise neoprene, butyl rubber, butadiene-styrene copolymer, a blend of neoprene with either natural rubber or butadiene-styrene copolymer and a blend of isobutylene-butadiene with butadiene-styrene copolymer.  It is preferred that the particles have a size from - 12-30 mesh.  The usual vulcanization agents may be present before vulcanization.  Specifications 563,374, [Group V], and 645,475 are referred to.ALSO:A textile cot has a fibre-drafting surface comprised of a base composition of vulcanized butadiene-acrylic nitrile copolymer having incorporated therein a minor proportion of finely-divided particles of a blend of natural rubber and neoprene. It is preferred that the particles have a size of from 12-30 mesh, while the usual vulcanization agents may be present. Specifications 563,374 and 645,475 are referred to.
Patent GB-608837-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D5/06
Filed: 1946-03-21
Abstract: 608,837. Turbine rotors. ENGLISH ELECTRIC CO., Ltd., and STERLAND, E. G. March 21, 1946, No. 8729. [Class 110 (iii)] In a turbine rotor of the type comprising a number of discs integral with a central body, rows of rotor blades are arranged alternately on the circumference of each individual disc itself and between adjacent discs, the opposing rim faces of adjacent discs being profiled to receive the complementarily profiled roots of interdisc blades. The discs 3, 4, 5, 6 are provided with rows of blades 11, 12, 14, 16, and additional rows of blades 13, 15 are inserted into the gaps between .discs 4, 5 and 5, 6 respectively. The discs are grooved to receive the serrations 17 of the blade roots. The latter may alternatively be T-shaped. The blades 12, 16 are offset from the centre planes of the discs 4, 6 to balance the forces imposed on the discs by the blades 13, 15. Specification 429,952 is referred to.
Patent GB-868655-A (GB)
Title: Improvements relating to the manufacture of cast iron pipes such as rainwater and soil pipes
Inventor: RICHARD JAMES AUBREY
IPC: B22D13/10
Filed: 1959-03-13
Abstract: 868,655. Centrifugal casting. MACFARLANE & CO. Ltd., WALTER. March 11, 1960 [March 13, 1959], No. 8816/59. Addition to 808,573. Class 83 (1). In the method of centrifugally casting cast iron pipes with an ear or ears as claimed in the parent Specification, the metal mould is provided with an internal compacted liner of clay bonded or green sand. The socket core may be shaped to form a double ear 20 extending transversely of the socket and joined thereto by webs 23.
Patent GB-1540886-A (GB)
Title: Crucibles
IPC: F27B14/10
Filed: 1976-03-05
Abstract: In the case of a crucible for holding the melt for pulling crystals from a high-melting metal which is comparatively resistant to oxygen or oxidants, the wall or the wall and the bottom of the crucible are of a multilayer design, a core of a high-melting metal being surrounded by a sheath which is made of a platinum metal and which is coated with an oxide layer on at least one of its outer faces. Said oxide skin is also designed as a separating layer between the core and the sheath. The wall, the bottom and the protective skin on the inside of the crucible may be detachable with respect to one another.   The invention permits a reduction of the manufacturing costs for crucibles of this type as well as a reduction of corrosion and thus an increase in the service life.
Patent GB-559168-A (GB)
Title: Improvements in or relating to electric plug and socket connecting devices
IPC: H01R13/64
Filed: 1942-06-27
Abstract: 559,168. Thermionic valve-holders two-part couplings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 27, 1942, No. 8861. Convention date, June 28, 1941. [Class 38 (i)] A thermionic valve holder or other socket member having its contacts arranged in a circle is formed with an annular groove 7 at the bottom of which the contacts are located. At one position the groove is widened to form a keyway 14, one of the valve pins 3 being formed with an enlargement 11 to fit the keyway so that the valve &c. can be inserted only in the correct position. The enlargement on the pin may consist of a cross-bar, a shoulder on one side, a circular boss attached to or formed in the pin or an insulating bush that may be moulded in one with the valve base. It is spaced from the end of the pin so as to allow the pin to enter the socket 9, but to prevent contact between pins and sockets when the enlargement rests on the edge of the groove.
Patent GB-177701-A (GB)
Title: Improved stand or prop for motorcycles
IPC: B62H1/02
Filed: 1921-03-23
Abstract: 177,701. Alltree, A. March 23, 1921. Supports.-A support or prop b for motorcycles is hinged upon a pin c substantially normal to the cycle frame and carried by a lug a' on the footboard a. In the out-of-use position the prop is horizontal as shown 'at s with the hinge at its forward end. To support the cycle, a stud b<2> on the prop is pushed down by the rider's foot and the machine tilted till its weight rests on the prop, the lower end of which is in advance of the hinge-pin so as to prevent the prop from being easily disturbed. A cranked or equivalent part b<1> bears against the footboard and limits the forward movement of the prop. This part may be adjustably bolted to the prop. A spring d returns the prop to its horizontal position when the cycle is returned to the vertical, and a spring clip may also be used to retain the prop horizontal. A pad of rubber may be provided on the end of the prop to cushion the return to the horizontal. In a modification, a pivoted catch g on the prop engages with a notch a<3> in the lug a<1> and holds the prop vertical; a sliding catch may be substituted for the pivoted catch. An extensible or telescopic part may be attached to the lower end of the prop. According to the Provisional Specification, the prop may be formed as a rectangular frame.
Patent GB-782494-A (GB)
Title: Improvements in or relating to jet propulsion nozzle arrangements
Inventor: COLLEY ROWAN HERBERT
IPC: F02K1/12
Filed: 1954-03-26
Abstract: 782,494. Hinges. ROLLS-ROYCE, Ltd. June 2, 1954 [March 26, 1954], No. 8992/54. Divided out of 782,493. Class; 65(2) [Also in Group XXVI] The variable area nozzle elements 122 are. pivoted to the outer wall 120a of the jet pipe by means of a flange 124 which carries a series of hinge pieces 130 which co-operate with hinge pieces 128 and rubbing pads 129 attached to corrugations 122a forming part of the nozzle elements.
Patent GB-330665-A (GB)
Title: Improvements in aircraft employing auto-rotative wings or supporting surfaces
IPC: B64C27/02
Filed: 1929-03-20
Abstract: 330,665. Cierva Autogiro Co., Ltd., and La Cierva, J. de. March 20, 1929. Aircraft with rotary wing systems; controlling. -In an aircraft having freely rotative wings 42 fixed wings 45 are so arranged that when the aircraft is in an attitude to the relative air stream in which the rotative wings 42 give " no lift," the fixed wings give a small negative lift or downward force. The wings 42 may have a section giving a substantially fixed centre of pressure and/or a reflexly curved section may be employed; in either case the wings are so arranged that the lift line of action passes in front of the centre of gravity of the aircraft when the wing is lifting positively and behind when the wing is lifting negatively. In Fig. 1, E, F is the no lift line for the wing 42 and G, H that for the wings 45; the line E<1>, F<1>, is drawn parallel to the line E, F. In a, modification the fixed wings are capable of adjustment, being coupled to the elevator control to enable the pilot to vary the downward force of the fixed wings when diving and to set them in their most efficient position for normal flight. Alternatively ailerons may be provided to fulfil the same function being moved up or down together to vary the virtual angle of incidence of the fixed wings; this may be effected in conjunction with the elevator control. Specification 330,515 is referred to.
Patent GB-105167-A (GB)
Title: Improvements in Weft Forks for Looms.
Inventor: BRIERLEY EDMUND
IPC: D03D51/34
Filed: 1916-06-29
Abstract: 105,167. Brierley, E. June 29, 1916. Weft forks.-The tang and barrel part is formed from a stamped blank of sheet steel or other metal by bending to form the two halves of the barrel A, punching or drilling holes for a rivet C, bending back part of the blank as shown, and inserting the rivet. Three holes are then drilled in the front D of the barrel, and wire prongs F are brazed, soldered, or otherwise secured therein. The tail part G is bent, and the fork is finished and burnished in the usual manner.
Patent GB-1113087-A (GB)
Title: Gas turbine power plant
Inventor: WILDE GEOFFREY LIGHT
IPC: F02K3/068
Filed: 1967-02-27
Abstract: 1,113,087. Gas turbine ducted fan engines; axial-flow fans. ROLLS-ROYCE Ltd. Feb. 27, 1967, No. 9300/67. Headings F1C and F1J. A gas turbine power plant comprises an annular main flow duct having mounted in flow series therein compressor means, combustion equipment, first turbine means driving the compressor means, and separate turbine means. An annular fan duct surrounds the main flow duct, the fan comprising at least two fan rotor stages with no intermediate stage of blading therebetween, the said fan rotor stages being mounted on a common rotor which is driven by the separate turbine means. The gas turbine ducted fan engine shown comprises LP compressor 8, HP compressor 9, combustion equipment 10, HP turbine 11 and LP turbine 12, the HP and LP turbines driving the HP and LP compressors respectively. The gases discharging from the LP turbine pass into an annular duct 15 of S-shape in which is disposed a fan-driving turbine assembly 17. The turbine assembly 17 comprises a first centrifugal stage 21, a second, outward radial flow stage 22 and a third axial flow stage 23, the gases finally discharging through a propulsion nozzle 19. The three turbine stages 21, 22, 23 are mounted on a common rotor 28 which is connected to a ducted fan rotor 27 on which are mounted two ducted fan rotor stages 25, 26, the fan blades being disposed in a duct formed between inner and outer walls 3 and 2. No stator blade stage is disposed between the fan stages 25, 26. Outlet guide blades 24 are disposed downstream of the fan rotor stage 26, being spaced therefrom by a distance between two and three times the mean chord length of the blades of the fan stage 26. The fan blades 26 may be offset circumferentially with respect to the blades 25.
Patent GB-834737-A (GB)
Title: Feed-out station for wire and the like
IPC: B65H59/06
Filed: 1958-03-24
Abstract: 834,737. Creels. GEOFFROY-DELORE S. A. March 24, 1958 [March 26, 1957], No. 9335/58. Class 120(2) [Also in Groups XXII and XXV] A feed-out device for a threadlike element such as wire comprises a reel on which the wire is coiled and from which it is withdrawn, a movable guide member engaged by the wire as it is withdrawn, the tension in the wire tending to move the guide to a displaced position against spring biasing means, and cutter means normally clear of the guide but engaged by the wire, if the tension therein is sufficient to move the guide, to cut the wire. Wire 12 is pulled off a reel 3, over a crown member 6, which may be stationary, Fig. 1, or rotated by a belt 20 and sleeve 21, Fig. 2, around a guide sleeve 8 and through a tube 4 coaxial with the reel 3 to, for example, cable making apparatus. If tension in the wire 12 becomes excessive the wire pushes the sleeve 8 back against a spring 9 and is cut by a knife edge 7 on the now exposed end of the tube 4. Movement of the sleeve 8 is limited by a stud 11. A plate 17 pressed by a weak spring 18 towards the guide sleeve 8 controls the feed of the wire and a casing 14 hinged at 15 prevents ballooning thereof. Movement of the sleeve 8 may actuate switches to stop the apparatus by which the wire is taken up. A plurality of reels may feed to a cable twisting machine the crown members 6 all being rotated by a common drive belt 20 some in one direction for the formation of a six strand inner layer and others in the opposite direction for the formation of an oppositely twisted twelve strand outer layer. Insulated contact bars may be provided so that if wire breaks the loose end will drop on to a bar to stop the machine or operate a warning circuit for the particular reel involved.
Patent GB-1488589-A (GB)
Title: Coating compositions hardenable by electron beams and suitable for coating wood and wood-like materials
IPC: C08F2/00
Filed: 1975-03-06
Abstract: The coating compositions containing  alpha , beta -unsaturated polyesters and acrylic esters which can be copolymerised on in the form of diacrylates and/or triacrylates, and optionally accelerators are highly reactive. These compositions are suitable for the coating of wood and wood-like materials. Due to the low vapour pressure of the components, the composition emits virtually no volatile components under processing conditions, so that processing thereof is physiologically acceptable.