baber/WOPTO huggingface dataset:
Patent GB-485861-A (GB)
Title: Improvements in the production of photographic multi-colour pictures
IPC: G03C7/26
Filed: 1936-11-25
Abstract: 485,861. Colour photography. I. G. FARBENINDUSTRIE AKT.-GES. Nov. 25, 1936, No. 32272. Convention date, Dec. (i, 1935. [Class 98 (ii)] A multicolour picture is produced by copying on to a silver halide emulsion a colour component image which is developed to produce a silver image and a residual image consisting of an organic oxidation product of the developer to be dyed with a basic dyestuff, and after the reconversion of the silver into silver halide carrying another colour component image thereon and after development converting the silver image into a colour image the blue and green component images are printed on to opposite sides of a positive film carrying an emulsion layer on each side and are developed by a hydroquinone developer containing no sulphite to produce residual, together with the silver, images. The film is placed in an acetic acid stop bath, and then exposed to light and developed in an ordinary developer containing a sulphite until complete blackening is produced. The silver is bleached to silver bromide in a bath containing bromine and ammonium bromide and cleared in a sodium sulphite bath. The film is dried and the red component image printed on to the side carrying the green component image. After development in an ordinary developer the film is fixed and washed. The green component residual image is dyed purple with Safranine and the blue-component residual image is dyed yellow with Thioflavin T, clarifying baths of dilute acetic acid and water respectively being used after the dyeings. The dyestuffs are mordanted with ammonium molybdate solution, and the red component image is iron-toned blue-green. The third component image may also be produced by colour development or the silver dyestuff bleaching-out process.
Patent GB-1430723-A (GB)
Title: Mass for a high-temperature-resistant emission electrode and process for the production of said mass
IPC: H01J1/14
Filed: 1974-07-22
Abstract: 1430723 W-ThO 2 -Al 2 O 3  fused mixtures SIEMENS AG 22 July 1974 [23 July 1973] 32328/74 Heading C1J [Also in Division C7] A solidified fused mixture consisting of by weight:- 33-50% ThO 2 , 4-15% Al 2 O 3 , 35-63% W powder. The mixture may comprise tungsten powder embedded in a crystalline solidified ThO 2 -Al 2 O 3  melt and may have a surface roughness of at least 100 microns and may be prepared by heating the constituents to a temperature of at least 1950C., e.g. by arc or resistance heating, and cooling over a time not exceeding the cooling time of the product during subsequent use as an emission electrode. The product may be fusion sintered to a tungsten, thoriated tungsten or ceramic electrode or may be embedded therein to form an emission electrode for use in TIG welding, X-ray tubes, picture tubes and electron beam guns and plasma arc welding.
Patent GB-155994-A (GB)
Title: Improvements relating to metal bars for reinforced concrete construction
IPC: E04C5/03
Filed: 1919-12-24
Abstract: 155,994. Dyson, H. K. Dec. 24, 1919. Twisting.-Gripping-dies for use in twisting bars, formed substantially circular with a single longitudinal flat, depression, or protuberance, are made with an arcuate lower surface c, Figs. 3 and 4, the bar being held between the part c and a key d.
Patent GB-1080745-A (GB)
Title: Polymeric compositions
IPC: C08J3/22
Filed: 1964-08-07
Abstract: A polymeric composition comprises a main polymer and a concentrate wherein the carrier is a polymer of 1-butene and the dispersed additive is in at least 5% by weight.  The main polymer preferably is a polymer of an olefin, e.g. polyethylene, polypropylene or a mixture thereof.  Specified additives are carbon black, Ca and Mg carbonates, SiO2, asbestos, china clay, zinc and iron oxides, lignin, coal, a silicate, cork and wood dust, cellulose, phthalocyanine blue and green, cadmium red and yellow, and benzidine yellow.  In examples, dilauryl thiodipropionate and butylidene bis-(6-t.Bu-m-cresol) are present as stabilizers.
Patent GB-491413-A (GB)
Title: Improvements in or relating to cathode ray television transmitter tubes
IPC: H01J29/43
Filed: 1937-11-24
Abstract: 491,413. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 24, 1937, No. 32403. Convention date, Dec. 31, 1936. [Class 39 (i)] The target or mosaic electrode in a television transmitting tube is formed with a translucent base 12 of material such as mica, the front surface of which has a light sensitive surface either in the form of a continuous film or in the usual caesium-coated mosaic form ; the back of the mica base has a non-reflective coating 14 of material such as colloidal graphite to prevent reflection of the optical image cast on the electrode from the backing thereof. This coating may also act as the signal conductor and to improve this function may have a platinum coating 16 ; a mica sheet 15 acts as support for the coatings and this sheet and the base 12 are gripped by a frame, which forms a terminal for the electrode. Openings 19 in the sheets 15 and 16 give access to the carbon coating to allow absorption of excess caesium during processing. If the non-reflective coating is nonconducting, for example silver sulphide, a suitable conductive plate is provided behind the coating.
Patent GB-489595-A (GB)
Title: Improvements in apparatus for recording or reproducing sound and picture-plus-sound films
IPC: G03B31/02
Filed: 1937-11-24
Abstract: 489,595. Recording and reproducing sound. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 24, 1937, No. 32406. Convention date, Nov. 27, 1936. [Class 40 (ii)] For maintaining constant film speed at a stationary sound-control point, the film is caused to move in a constrained manner throughout the length lying between that point and the point at which a constant speed drive is provided. When the film is pulled by a constant speed roller from the recording or reproducing point this is achieved by means of an arcuate member pressed into contact with the length of film between the two said points, Fig. 2 (not shown). In a preferred method the constant speed roller 1, Fig. 3, pushes the film 2 around the concave surface 4 of an arched member 5 whence it passes in a free loop 14 to a sprocket 7, the stress caused by the loop being sufficient to keep the film in contact with the surface 4. Thus at the sound-control point 6 the absence of any undesired free movement renders the film speed constant. If films are to be recorded mechanically for optical reproduction the engraving of the film may be done by a tool 15 operating at the surfaces of the roller 1.
Patent GB-173398-A (GB)
Title: Improvements in machines for sewing belting
IPC: A43D69/04
Filed: 1920-11-18
Abstract: 173,398. Hebblethwaite, W. W., and Dodson, J. H. Nov. 18, 1920. Wire-stitching.-In a machine for sewing or riveting belting A by short lengths B, Fig. 6, of wire forced through the belt in a downward direction and clinched, the belt is first perforated by a pricker C arranged underneath the belt with cam mechanism C', Fig. 2, for forcing it through the belt in an upward direction. The pricker C, mounted in a holder c by a clamp c<4>, is carried by a slide c<1> in a casing D which also carries an anvil d for turning up the end of the wire B. The slide c<1> has a runner c<6> engaging a cam c' laterally sliding on a shaft c<10>. The slide c is returned by a spring c<8>. In a modification, the slide c<1> is operated by a pivoted lever engaging a cam-operated slide.
Patent GB-993984-A (GB)
Title: Improvements in or relating to electrical circuits
Inventor: PRIOR HECTOR THOMAS
IPC: H05K3/40
Filed: 1962-08-24
Abstract: 993,984. Printed circuits. STANDARD TELEPHONES & CABLES Ltd. Aug. 23, 1963 [Aug. 24, 1962], No. 32641/62. Heading H1R. An electrical conductor assembly is made by removing from a metal sheet having a pattern of holes therein some of the metal between the holes to form a conductive pattern, fitting the holes in the metal sheet over a pattern of projections on the face of an insulating member, and applying pressure or heat and pressure to cause the projections to flow over adjacent portions of the metal sheet, so locking the metal sheet to the insulating member. As shown, Fig. 1, a metal sheet 3 having a pattern of square holes 4 is punched, manually or automatically, to remove metal between certain holes, and is fitted to a strip 1 of thermoplastic insulating material so that the holes 4 pass over projections 2 on the strip. Heat and pressure are applied to the projections so that they flow over the adjacent metal, as shown in Fig. 3; the metal may be thus completely covered with insulation, or may be encapsulated subsequently. The borders 6, 7 of metal sheet 3, which are slotted at 5, are cropped to leave a row of tags along each longitudinal edge of the assembly. Modifications.-The holes 4 and projections 2 may be other than square, e.g. circular, the punchings between holes also being circular. The projections may be initially ironed to produce rims over which the metal sheet is clipped. Pressure unaccompanied by heat may be used with suitable insulating material. Patterned metal sheets may be applied to both sides of an insulating strip, the projections on the two sides being aligned or staggered. A plurality of assemblies may be stacked. Close-woven wire mesh sheet may be used. Specifications 931,570 and 993,983 are referred to.
Patent GB-324989-A (GB)
Title: Improvements in or relating to means for taking and projecting pictures in colour for use in colour cinematography, still photography or photomicrography
IPC: G02B27/14
Filed: 1928-11-08
Abstract: 324,989. Chapman, W., and Bull, H. H. J. Nov. 8, 1928. Colour kinematography; optical systems.-A method of obtaining two diagonally located pictures arranged as described in Specification 319,195, comprises two reflecting prisms and a single lens, the prisms being arranged so that the rays from the lens are deviated into two paths making an acute angle with one another. In the form described two rhomboidal prisms A, B, Fig. 1 are utilized, each receiving half the incident light, and having their side faces x cut so that the two paths of the rays are at an acute angle with one another. This arrangement of the prisms A, B enables two images to be produced as in Fig. 3, with their centres situated at the points r<1>, r<2>. By inclining the edges of the film F relatively to the meeting line X of the prisms, Fig. 5, and masking the images contained in the light circles C<1>, C<2>, pictures P<1>, P<2> arranged diagonally on the screen are obtained.
Patent GB-1119530-A (GB)
Title: A load change sensing instrument
IPC: G01B11/16
Filed: 1965-07-30
Abstract: 1,119,530. Photo-elastic stress indicators. C-I-M CONSULTANTS Ltd. July 30, 1965 [July 31, 1964], No.32787/65. Heading G1W. An instrument for sensing a change in a compressive load or in a tensile load comprises a body portion formed of structurally rigid non- birefringent material, a birefringent material associated with said body portion in fixed relationship thereto and an unhindered bore through said body for applying said body portion to a material whose change in compressive load or tensile load is to be sensed. In one embodiment see Fig. 1 the instrument comprises a cylinder 10 provided with a central bore and covered at one end with a disc 14 of birefringent material, a reflective layer of material being positioned between the disc 14 and the end of the cylinder. In a modification, the cylinder has an upper and lower flange between which the birefringent material is placed. The instrument is provided with the central bore so that it may be fitted to the member to be stressed.
Patent GB-387072-A (GB)
Title: Improvements in or relating to electric heating appliances
IPC: F24C7/06
Filed: 1931-11-26
Abstract: 387,072. Electric radiators. DENNES, N., Whitecroft, Solihull, near Birmingham, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Nov. 26, 1931, No. 32847. [Classes 39 (iii) and 126.] An electric fire comprising heating elements arranged in front of a reflector 2 fitted to a screen 1 is provided near the top with one or more rearwardly projecting brackets 6 having notches or holes to engage a suspension member fitted in a fire grate, and a rearwardly projecting prop 8 arranged near the bottom and adapted to bear against the grate. A switch is fitted at the front of the bottom of the screen. The suspension member comprises spindles 11, 10 screwed right- and left-handed and engaging screwed members mounted in a tube 12. Rubber pads 16, 15 are fitted on the ends of the spindles. Alternatively the suspension member comprises rods slidably mounted in a sleeve. One rod is resiliently mounted by means of a helical spring and the other is secured in the required position by a thumb-screw. The prop comprises stepped members 8 interconnected by a flat bar. The bar may be removed and the stepped members turned down to form feet. Alternatively the prop may be a bar adjustable in length.
Patent GB-1005436-A (GB)
Title: Grain refined beryllium
IPC: C22B35/00
Filed: 1961-09-13
Abstract: Beryllium is caused to have a fine grain size by the addition of 0.01-0.3% by weight of boron.  The boron and beryllium, each in finely divided form, are mixed, and the mixture is then vacuum melted preferably in an electron-beam furnace and allowed to solidify.  To eliminate oxygen occuring as an impurity in the beryllium, aluminium in an amount stoichiometrically sufficient to combine with the oxygen, or slightly in excess thereof, is added, either by melting with the beryllium prior to the addition of boron, or simultaneously with the boron.  If desired, the aluminium oxide may be removed by a zone-refining treatment.
Patent GB-1130923-A (GB)
Title: Improvements in or relating to the surface treatment of articles
Inventor: BROWNHILL STANLEY ERNEST
IPC: B24B31/14
Filed: 1965-07-31
Abstract: 1,130,923. Surface treating. WOLVERHAMPTON DIE CASTING Ltd. 10 Aug., 1966 [31 July, 1965], No. 32865/65. Heading B3D. Barrelling media comprises a mass of pieces each having a cross-section comprising any number of ribs greater than two extending outwardly from a central part, each rib tapering from a root at the central part to a tip remote from said part. In the surface treatment of articles, e.g. castings and particularly zinc base die castings, for de-burring, deflashing, polishing or preplating finishing, the articles are placed in a vessel with the media, a liquid and an abrasive compound and the vessel is then agitated. Each piece may have four ribs 11 radiating from the portion 12. The tip 13 of each rib is radiused. The rib tapers from 0À046 inch at its root to 0.015 inch at its tip. The width between the tips of opposite ribs is 0.224 inch and the length of the piece is 0.937 inch. Each piece may taper to a blunt point at one or both ends. The pieces are preferably die cast from a zinc base die casting alloy, but may be made of steel, aluminium, brass or ceramic. Zinc die castings of push buttons for car handles having a dowel extending from the interior of the hollow push button are ground in a barrel of octagonal cross-section having a capacity of 36 cu. feet. The barrel is loaded with 7 cwt. of media approximately inch long and having a point at one end only. The barrel is also loaded with 1000 castings each weighing approximately 1.25 oz. Water is added so that its upper surface is approximately 4 inches below the level of the mass. 4 1b. of compound is added. The barrel is rotated at 16 R.P.M. for 1 hr. The liquid is allowed to drain from the barrel, fresh water is put in and the barrel rotated several times to rinse the castings. Lock barrels for motor vehicle ignition locks are deburred in a tub having a rounded bottom. The tub is loaded with 7 cwt. of wet media similar to that mentioned in the previous paragraph, 5000 castings each weighing approximately 0.75 oz. and 2 1b. of compound. The tub is vibrated for 20 mins.
Patent GB-447333-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of metal tubes and other tubular articles
IPC: B21C45/00
Filed: 1934-11-15
Abstract: 447,333. Making tubes &c. McLAY, G. S., Shell Mex House, Strand, and WELLMAN SEAVER ROLLING MILL CO., Ltd., Victoria Station House, both in London. Nov. 15, 1934, No. 32903. [Class 83 (iv)] Stamping; rolling. - After passing a tubular billet through dies or rolls the reduced tube 39 is automatically stripped from the mandrel 16 of a push bench by continuing the forward movement of the tube to actuate grip levers 5 and 6, which grip and hold the mandrel and to start the forward movement of a tube stripper. The tube in its forward movement swings upwards a hinged slotted gate 35 until it clears the trailing edge of the gate which swings back until its slot straddles the mandrel only, thereby operating a pawl 46, Fig. 7, on its hinge 36 to open air valves 48, which supplies fluid both to the cylinder 15 of the mandrel grippers, and to the cylinder 42, Fig. 1, of the stripper carriage 18. The carriage 18 then moves to the right, the slot of the stripped plate 35 backed by the plate 27 of the carriage, engaging the tube end and stripping it off the mandrel. The tube is received on supports 29 which are pivoted up to discharge sideways the tube when a roller 32 engages a fixed cam 33 on the end of the bed. The carriage, at the end of its forward movement, operates a pull rod 49, Fig. 7, to exhaust cylinders 15 and 42 so that the mandrel is released from its grippers 5, 6, and rolls down the slope of its supports and the carriage is traversed back to the left. The mandrel supports 43 are swung aside by the backward movement of the carriage but are swung out again to mandrel supporting position by weight 45 when free to do so, as the carriage advances again. Specifications 300,288, [Class 83 (iv)], and 446,099 are referred to.
Patent GB-366561-A (GB)
Title: Improvements relating to arrangements for the evacuation of enclosed high voltage electrical devices
IPC: H01J9/38
Filed: 1930-11-01
Abstract: 366,561. Electric discharge apparatus ; condensers; insulators &c. ALLIBONE, T. E., Senlac, Norman Road, Sale, Cheshire. Nov. 1, 1930, No. 32940. [Class 39 (i).] In electrical devices which are evacuated by means of an exhaust pump while subjected to a high voltage pressure, such as electric discharge tubes, thermionic rectifiers, transformer terminal bushings, condensers, &c., an electrical discharge through the insulating conduit connecting the evacuated device to the pump body is prevented by providing a pair of juxtaposed electrodes within a portion of the insulating conduit which is shaped to conform to the shape assured bv the electrostatic field between the electrodes, one electrode being connected electrically to the pump body, while the other is connected to that part of the device from which the conduit is taken. In one form comprising an X-ray tube 1, as shown in the Figure, provided with a cathode 2 and anode 3, the lower end of the tube is connected to an insulating conduit 5 by flanges 7, and the anode lead 8 is connected to a metal rod or tube 9 carrying a rounded electrode 10. An adjacent electrode 12 is connected by a conductor 11 to the pump 6 which is secured by a flange 7 to the bottom of the conduit 5. The spacing between the electrodes 10, 12 is determined by the voltage at which the discharge device is operated and the degree of vacuum. A stress distributer 13 is positioned at the joint between the envelope of the discharge devices and the conduit 5. Two discharge devices may be evacuated simultaneously, either by disposing them in series alignment with the pump conduit or by arranging the latter as aT-junction between the adjacent ends of the discharge tubes. In another arrangement two insulating conduits each with a pair of electrodes are connected between the pump and the apparatus being evacuated. In the case of high voltage condensers one electrode in the flash-over path is connected to the condenser pole of lower potential, the other electrode being connected to the pump.
Patent GB-377069-A (GB)
Title: Improved preparations for killing flies
IPC: A01N25/02
Filed: 1931-11-27
Abstract: Preparations for destroying insects (of the kind suitable for spraying into the air of a room) consist of an insecticidal substance and a product obtained by subjecting petroleum or a petroleum distillate to hydrogenation, whereby the odour of the non-hydrogenated material is removed.  Suitable insecticidal substances are: pyrethrum extract together with the amyl-, ethyl-, phenyl-, or benzyl ester of salicylic acid, benzoic acid or chlorobenzoic acid, pyrethrum extract alone, salicylic acid phenyl ester alone, derris elliptica extract and diphenyl ether, methylcyclohexyl-methylaniline, 4 chlorodiphenyl.
Patent GB-1065725-A (GB)
Title: Purification of adipodinitrile
Inventor: EISFELD KARL
IPC: B01D9/02
Filed: 1964-08-13
Abstract: Adiponitrile is purified by cooling the liquid or heating the solid so as to produce a suspension of adiponitrile crystals in liquid adiponitrile at a temperature of below 2.0 DEG  C., separating the crystals, e.g. on a filter press, vacuum filter, pressure filter or in a centrifuge, washing the crystals, e.g. with pure liquid adiponitrile or with water or an organic liquid, and returning the separated liquid adiponitrile, with or without the wash liquid, to the first or another crystallization zone. The wash liquid may be pure adiponitrile obtained by partly melting the separated solid adiponitrile, e.g. while still in the separation apparatus.
Patent GB-461929-A (GB)
Title: Improvements relating to windows
IPC: E06B3/58
Filed: 1935-11-28
Abstract: 461,929. Window-glazing. HOP• & SONS, Ltd., H., and HOPE, R. W. Nov. 28, 1935, No. 33004. [Class 20 (iii)] The strips b by which a window pane is secured are joined at the corners by curved metal or like pieces a passing above and below the ends of the strips and being held by them. The pieces preferably have two tongues d, one inserted beneath each strip, and the curved surface merges at the end into the faces of the strips. The strips are secured by screws f. The corner-pieces may be made of fabric and synthetic resin.
Patent GB-772134-A (GB)
Title: Improvements in or relating to the manufacture of flexible metal tubes
IPC: B21D15/10
Filed: 1955-11-18
Abstract: 772,134. Making corrugated tubes. DEBENEDETTI, R. Nov. 18, 1955 [Nov. 22, 1954], No. 33124/55. Classes 83 (2) and 83 (4). A process for manufacturing flexible metal tubes of the corrugated type is characterized in that the corrugations are obtained by fluid pressure acting on an annular zone of the tube corresponding to one corrugation through the wall of a member made of rubber or other resilient material. The apparatus comprises a mandrel 1 having an axial bore 2 terminating in radial bores 3 communicating with an annular recess 4 provided'in the external centre portion of the mandrel. Surrounding the mandrel is a resilient tubular member 6, e.g. of rubber, secured thereto by metal tubular members 7 and 8 over which passes the tube to be corrugated. A corrugated die 10 surrounds the assembly. In operation fluid pressure is directed along bores 2 and 3 and into the recess 4 where the fluid-pressure acts on the resilient member 6 to form a corrugation in the tube. As the tube is free to slide between the ungrooved portion of the die and the tubular-member 7 no stretching of the material takes place. The shape of the corrugations may be subsequently modified by shaped rollers, if desired. The tube may be of stainless steel of any thickness or having multiple walls. Corrugations of various heights may be obtained by varying the fluid pressure. The resilient member may have a variable section, e.g. corrugated, and may be fixed to the mandrel with axial precompression to avoid excessive stretch of the member.