baber/WOPTO huggingface dataset:
Patent GB-490632-A (GB)
Title: Method for the manufacture of electric discharge tubes with metal bulbs
IPC: H01J5/26
Filed: 1937-10-07
Abstract: 490,632. Sealing metal to glass by heat. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R. T. Oct. 7, 1937, No. 27224. Convention date, Oct. 7, 1936. [Class 36] In the manufacture of electric discharge vessels with metal bulbs, more particularly thermionic valves, the electrode system is mounted on a stem or base in the form of a glass disc which is subsequently sealed hermetically directly to the wall of the metal bulb. As shown, the metal bulb may be made of two different metals, e.g. a sheet-iron upper portion 5a, which is welded to an annular lower part 5b of an iron-chromium alloy which can be sealed to glass. The bottom edge 5d of the lower metal part 5b is flared outwardly to conform to the conical edge of the glass disc 1 which is inserted therein, the dimensions of the latter being such that, after preheating, it is an accurate fit within the end of the metal bulb. An exhausting-tube 2 sealed on the underside of the glass disc 1 provides means for supporting the device in suitable clamps, and also receives a scavenging tube 10 which is inserted temporarily therein. The glass disc is preheated, e.g. to a temperature of 450-500‹ C. by gas flames directed upon its underside and the adjacent conical parts of the metal and glass members are then heated, either by gas flames 9 or electrically. During this heating the upper part of the metal bulb is cooled externally by a current of air or water, and internally by a neutral scavenging gas such as nitrogen or carbon dioxide introduced through the tube 10, the bulb being simultaneously pressed gently down upon the glass disc 1. When the edge of the glass disc is softened sufficiently, a supporting-ring 8, which is preferably made in two parts and preheated, is placed beneath the disc and the bulb pressed hard down on to the latter, the heat thus received from the part 5d of the bulb causing the edge of the glass disc to be completely melted so that it fuses on to the inner surface of the metal wall. The forms of the members may be varied, for example the edge of the glass disc may be cylindrical, and its surface need not be absolutely flat.
Patent GB-1007449-A (GB)
Title: Titanium dioxide pigment
Inventor: LEDERER GERALD
IPC: C08K9/02
Filed: 1961-07-27
Abstract: Titanium dioxide pigment coated with stannic oxide and alumina is made by a process of coating pigmentary titanium dioxide with stannic oxide, preferably 0.2 to 2% by weight of the pigment, and alumina. The pigment may also be coated with silicon dioxide.  In the examples rutile titanium dioxide is coated in aqueous suspension with stannic oxide together with aluminium oxide, or with a combination of aluminium oxide and silicon dioxide and portions are dried and optionally heated to 625 DEG  C. for one hour. The above together with an uncoated sample are compared as to discoloration on exposure to light when incorporated together with a melamine formaldehyde resin in a paper laminated. Specification 1,007,448 is referred to.ALSO:Pigmentary rutile titanium dioxide pigments coated with stannic oxide and alumina and optionally with silica may be used for producing a pigmented thermo-setting resins for example a urea formaldehyde or melamine formaldehyde or phenol formaldehyde resin by admixture thereto, and curing the resin.  The pigment may be incorporated into a supporting material for example paper which may then be impregnated with the resin and finally curing the resin.  The pigment may be incorporated into a paper at the final beating stage in aqueous suspension and one or more sheets of the resulting paper containing the pigment are then impregnated with a thermo-setting resin as above and the sheets of paper thus per used are subjected to high temperature and high pressure conditions to cure the resin. Specification 1,007,448 is referred to.
Patent GB-245735-A (GB)
Title: Improvements in drum-shaped cartridge magazines for machine guns or the like
IPC: F41A9/73
Filed: 1925-11-02
Abstract: 245,735. Aktieselskabet Dansk Reky- Iriffel Syndikat. Jan. 9, 1925, [Convention date]. Cartridge magazines.-Relates to drum magazines in which the cartridges are fed along spiral tracks by a radial arm 10 of variable length which is rotated by a spiral spring assisted at the beginning of the feeding movement by an auxiliary spring, and consists in forming the auxiliary spring as a helix a surrounding the shaft 8 of the feed-arm 10 and having projecting radial ends b, c, one b of which is anchored against the end of one of the spiral guides 4 while the other c engages a cross-piece 22 on the end. of the feed-arm when the arm is sufficiently shortened. The auxiliary spring assists the main spiral spring, which is contained in a drum 13, for about half a revolution when the magazine is full.
Patent GB-1090154-A (GB)
Title: Nitrous fumes disposal
Inventor: TRAIN DAVID
IPC: C01D9/06
Filed: 1965-06-29
Abstract: Nitrous fumes are disposed of by cooling them to condense them to a liquid, dissolving the liquid in an aqueous medium at a temperature of 5 DEG  C. or lower and neutralizing the resultant solution.  This method may be modified by dissolving the condensed fumes directly in an alkaline aqueous solution at a temperature of 5 DEG  C. or lower.
Patent GB-428529-A (GB)
Title: Improvements in mechanisms for operating electric switches or other devices with snap action and adapted to be actuated electromagnetically
IPC: H01H5/06
Filed: 1933-10-06
Abstract: 428,529. Linkages. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and SHERWIN, A., c /o Salford Electrical Instruments, Ltd., Silk Street, Salford. Oct. 6, 1933, No. 27560. [Class 80 (iii)] [See also Group XXXVII] In an electromagnetically - operated deadcentre change-over mechanism for operating electric switches and other devices with a quick action operating electromagnets 14, 15 act alternately on cores 12, 13 attached to a rocking bar 11 on a shaft 2 on which is secured an operating crank 1 and on which is loosely mounted to move between stops, (not shown), a cradle 4, 5, 6 carrying a tiltable mercury switch 8. The dead-centre spring 21 is connected between the shaft 7 on which the mercury switch is secured and an additional lever 20 which is pivoted at a point 23 intermediate its ends to the operating crank 1 and has a slot in its lower end into which projects a fixed pin 22. By this arrangement, during the change-over action the additional lever 20 has a combined movement along its longitudinal axis and rotative movement about the pin 22 so that during the initial portion of the movement of the operating crank, when the force of the operating electromagnet is weakest, only a relatively small extension of the dead-centre spring 21 is produced. At a later stage in the movement as the dead-centre position is approached the correspondingly increased rate of extension of the spring is ensured by the increasingly powerful action of the operating electromagnet as its air gap becomes closed. U-shaped magnetic yokes 16, 17 embrace the operating electromagnets to assist this action. The mechanical considerations underlying the change-over action are fully set forth in the Specification.
Patent GB-603495-A (GB)
Title: Improved method for making anthrimides
IPC: C09B1/48
Filed: 1945-10-22
Abstract: Anthrimides are made by heating a halogenanthraquinone with an anthraquinone derivative containing one or more amino groups in the presence of a solid acid-absorbing agent and a solid cupriferous catalyst, the mixture being in the solid phase and subjected to constant attrition and mixing by the aid of mechanical grinding.  The salts may be extracted with hot water and a rotary baker as described in U.S.A.  Specification 2,153,300 or any ball- or rod-mill may be used.  The temperature should be above 150 DEG  C., generally 200-240 DEG  C., and may be up to 350 DEG  C. In examples, the following pairs of starting materials are heated together while grinding, together with a copper salt, e.g. cuprous chloride and cupric acetate, and sodium or potassium carbonate or acetate: (1) 1-benzoylamino-5-chloroanthraquinone and 1 - aminoanthraquinone; (2) 1 - chloroanthraquinone and 1 - 1-aminoanthraquinone; (3) 2- (or 1-) chloro- and 1- (or 2-) aminoanthraquinone; (4) 1,5-diaminoanthraquinone and 1 - chloroanthraquinone (2 mols.) or 1,5-dichloranthraquinone and 1-aminoanthraquinone (2 mols.); (5) 2,6-diamino- or 2,6-dichloro-anthraquinone and 1-chlor- or 1-aminoanthraquinone respectively; (6) 1,4,5,8-tetrachloranthraquinone and 1-aminoanthraquinone or (7) 2-aminoanthraquinone; (8) (a) 1 - benzoylamino-4-aminoanthraquinone and 1-benzoylamino-4- (or 5-) chloranthraquinone, (b) 1 - benzoylamino - 5 - chloranthraquinone (2 mols.) and 1,5-, 1,8-, or 1,4-diaminoanthraquinone, (c) 1 - benzoylamino - 4 - chloranthraquinone (2 mols.) and 1,5-, 1,8- or 1,4-diaminoanthraquinone, (d) 4-bromo-N-methyl-1,9-anthrapyridone (2 mols.) and 2,6- or 1,5-diaminoanthraquinone, (e) 8- or 5-amino-2,1 (N)-anthraquinone-benzacridone (2 mols.) and 1,5- or 1,8-dichloranthraquinone, (f) 1-aminoanthraquinone (2 mols.) and Bz.-1,6-dibromobenzanthrone, (g) 1-amino- or 2-aminoanthraquinone and Bz.-1-bromobenzanthrone, (h) dibrompyranthrone and 1-aminoanthraquinone.  The bromo- or iodo-anthraquinones may be used instead of the above-mentioned chloroanthraquinones.  The products may be carbazolised according to Specification 439,296, U.S.A. Specification 970,278 and German Specification 262,788.
Patent GB-1360107-A (GB)
Title: Voneverting bottom for thermoplastics bottles
IPC: B65D1/02
Filed: 1972-06-14
Abstract: 1360107 Plastics bottles E I DU PONT DE NEMOURS & CO 14 June 1972 [15 June 1971] 27816/72 Heading B8D [Also in Division B5] To prevent eversion under internal pressure, a bottle made of biaxially oriented plastics has a bottom comprising at least three lobes 8-10 separated by portions 11-13 which, with the lobes, merge with the base 14 of a double walled projection 15, 16 extending on to the bottle and merging with a disc 19. In a modification (Figs. 9-12) the portion interconnecting the walls 15, 16 is punched to form a reinforcing ring. Suitable plastics for the bottle may be polyethylene terephthalate, acrylonitrile/styrene/methylacrylate copolymer, acrylonitrile / ethylene/ methylacrylate copolymer, methacrylonitrile copolymers, polycarbonates, polysulphones, polybis - (p - aminocyclohexyl) - dodecaneamide, or formaldehyde resin.
Patent GB-712500-A (GB)
Title: Improvements in or relating to attachment devices for portable hardness testing instruments
Inventor: POCKNEE JAMES KITCHENER
IPC: G01N3/42
Filed: 1951-11-27
Abstract: 712,500. Testing physical qualities of materials. CABUL TOOL CO., Ltd. Nov. 27, 1952 [Nov. 27, 1951], No. 27844/51. Class 106 (2) An attachment device for a portable hardnesstesting instrument comprises a plate like frame 11, Figs. 1, 2, an electromagnet carried by the frame 11 having two spaced-apart pole pieces 12 or groups of pole pieces projecting from one surface of the frame, and means 28 secured to the opposite surface of the frame on which the hardness testing machine 31 may be rigidly secured in a readily removable manner. The device may be readily attached to any magnetic material to be tested, or it may be placed on a magnetic table and the article 40 to be tested may be placed on the tab'e. A hole 26 in the frame 11 permits the indentor of the hardness testing apparatus to extend therethrough. If the device is attached to a table top of magnetic material, the test piece may be placed on the table alongside the frame as indicated in chain dotted lines 40, Fig. 2. Each pole-face of each pair of poles comprises a flat surface 20 and a bevelled surface 21 of which the flat surfaces 20 are coplanar and the bevelled surfaces 21 are adjacent one another and divergent in a direction away from the frame. The apparatus may thus, as shown in Fig. 3, be attached to a cylindrical surface. The securing means 28 may be a pillar to be received in the harness testing instrument. a threaded clamp 29 serving to clamp the instrument in position. The pillar 28 may be of circular cross-section and the pillar and the instrument may have aligning throughways 30 to receive a pin, bar, key or the like to. prevent relative rotation therebetween.
Patent GB-225229-A (GB)
Title: Improved means for balancing telephone cable circuits
IPC: H04B3/34
Filed: 1924-11-20
Abstract: 225,229. Voogt, A. H. de. Nov. 23, 1923, [Convention date]. Drawings to Specification. Induction, preventing and minimizing.-The sections of a telephone cable are joined up so as to minimize the inductive effects between the various circuits (side and phantom) for varying frequencies. The cross-talk or over-hearing between two circuits is measured directly in terms of attenuation by connecting a generator to the disturbing circuit and a receiver and measuring apparatus to the disturbed circuit, multi-way switches being interposed between the sections, and each circuit being closed by a characteristic resistance. The apparatus is retained at one end of the cable, and the switches and closing resistance are moved progressively along the cable as the sections are joined up. Measurements are normally made for a single frequency, but measurements over a frequency range are made periodically to determine unfavourable frequencies.
Patent GB-188506-A (GB)
Title: Improvements in or relating to the manufacture of parachutes
IPC: B64D17/02
Filed: 1921-10-21
Abstract: 188,506. V. M. L. Experimental, Ltd., (formerly M.L. Experimental Ltd.)., and Lucas, O. D. Oct. 21, 1921. Parachutes.-The joints and reinforcing strips of paper parachutes, more particularly those for use with pyrotechnic signals, are secured by means of a cementing composition, such as rubber solution or airship dope, which on drying is elastic and flexible. To strengthen and protect the paper from atmospheric action it is given a waterproof film by spraying or painting with rubber solution, airship dope, or elastic varnish, and to prevent sticking at the folds when the parachute unfurls, the whole surface is covered with a lubricating material, for example, French chalk, aluminium powder or some soapy substance. Fig. 1 shows a parachute formed of a disc of paper A with a small central hole a. Reinforcing strips of paper are cemented around the edges of the hole a and the disc A, and, if desired, along radial lines extending to the cord eyelets. The cords D are brought together at a ring d and attached to a shackle E provided with a ring e for the attachment of the pyrotechnic signal flare. At the eyelets C, Fig. 3, small strengthening discs of fabric c are folded over the reinforced edge B of the parachute, and washers c<1> are provided at each side before the eyelet is punched. If desired the disc A may be formed of several pieces of paper cemented together.
Patent GB-915376-A (GB)
Title: Control apparatus for vehicle heating systems
Inventor: COMBI ANTHONY
IPC: B60H1/00
Filed: 1960-08-15
Abstract: 915,376. Automatic temperature control systems. ROTAX Ltd. July 26, 1961 [Aug. 15, 1960], No. 28129/60. Class 38 (4). An automatic temperature control apparatus for a vehicle heating system in which the vehicle is heated by air which passes over the vehicle engine radiator comprises a reversible electric motor 8 which drives baffles 11, 12 to opposite ends of two radiators 3, 4 so that more or less heated air is admitted into the vehicle by way of the aperture 13, the motor 8 being controlled over two circuits, one of which includes a limit switch 18 which is opened when the baffles 11, 12 reach their extreme separated positions to admit the maximum amount of heated air, the other circuit including a limit switch 18 which is opened when the baffles 11, 12 reach their extreme adjacent positions when no heated air is admitted, the system also including a mercury thermometer situated in the vehicle, which controls two relays 19, 20, the relay 19 opening contacts 19a if the temperature in the vehicle reaches a temperature represented by the level 21 on the mercury thermometer to stop the motor before limit switch 17 is opened whilst relay 20 closes contacts 20a if the temperature in the vehicle reaches a temperature represented by a level 22 on the mercury thermometer to allow the motor 8 to drive the baffles towards each other to reduce the amount of air admitted to the vehicle. The levels 21, 22 may represent- 68‹ F. and 72‹ F. respectively.
Patent GB-1513055-A (GB)
Title: Disposable diapers
IPC: A61F13/15
Filed: 1975-07-02
Abstract: 1513055 Diapers J T McCULLINS 28 June 1976 [2 July 1975] 28151/75 Heading A5R A disposable diaper comprises a moisture impervious backing sheet 2, Fig. 4, a mass of absorbent material 3, a porous top sheet 6, edge portions of which are secured to said backing sheet, and sealing strips 10 attached to longitudinal marginal portions of the top sheet 6, said sealing strips, in use, encircling the infant's legs, thereby reducing leakage of liquid. In Fig. 4 the backing sheet 2 is wider than the top sheet 6 and its edges are turned over the edges of the top sheet and over the sealing strips; in Fig. 7 (not shown) the backing sheet (22) and the top sheet (26) are of the same width and additional strips (29) of moisture impervious material are secured over the edges of the top sheet and the backing sheet and over the sealing strips. The diaper may be folded inwardly along fold lines 12, Fig. 1, and outwardly along fold lines 13 to form a box-pleated configuration which is maintained by means of spots of adhesive 11 located between the fold lines 12 and midway between the ends 8 and 9 of the diaper. The absorbent material 3, which may comprise cellulose fibres impregnated with a quaternary ammonium salt and surrounded by absorbent cellulosic sheets 4, 5, Fig. 4, is confined to the area between the outer fold lines 13. The sealing strips 10 may be made of resilient foamed materials such as polyurethanes or natural or synthetic rubber foams, or may comprise lengths of twisted cellulose sheet. The backing sheet 2 may be made of polyethylene, polyethylene terephthalate or plasticised polyvinyl chloride and the top sheet 6 may be a non-woven cellulose sheet impregnated with a hydrophobic resin; the edge portions of the sheets 2 and 6 may be secured together by means of an emulsion adhesive or by heat-sealing. The diaper is secured in position by adhesive fastening tabs (14), Fig. 2 (not shown) attached to the backing sheet 2.
Patent GB-1027807-A (GB)
Title: Improvements in or relating to roofs, floors and like structures
IPC: E04B7/10
Filed: 1963-07-16
Abstract: 1,027,807. Roof structures. A. THYHOLT. July 16, 1963 [July 19, 1962], No. 28170/63. Heading E1V. In a deck construction consisting of a frame comprising an arbitrary number of rigid elements, e.g. AH, AJ, JD and DH, forming the pressure (or stressed) elements thereof, and a tie element which intersects elements 3, both forms of elements being secured at points in the group A, J, D, H, at Castone form of element e.g. is divided into strands or cables 2 or the like, which are dispersed divergently over the deck from one point A, J, D or H, and then gathered convergently and secured to an opposite point, the tie elements being interconnected where they intersect. In a modification stressed elements of four like adjacent frames are interconnected or combined to form a common element.
Patent GB-1308246-A (GB)
Title: Vaporizer-humidifier
IPC: H02H11/00
Filed: 1970-06-10
Abstract: 1308246 Air humidifier G W SCHOSSOW 10 June 1970 [11 June 1969] 28201/70 Heading B1R A humidifier of the type wherein water is evaporated into a stream of air by means of an electric heating element comprises a water reservoir 13 having within it a heat-insulated chamber 39 receiving water from reservoir 13  through passage 62 and a non-return valve 63, a heating element 44 being positioned within the chamber 39. Domed cover 11 houses a blower 31 which draws air into the humidifier in turn through vents 42, 41 and expels air and vapour through orifices 35, 34 and outlet 58. In another embodiment, (see Fig. 5, not shown), the heat-insulated chamber (77) is open at its lower end and a removable cup (80) is located therebelow to collect scale, water being supplied to the chamber from the reservoir via the cup through non-return valve (83).
Patent GB-782364-A (GB)
Title: Process for the manufacture of ethylene
IPC: C07C2/76
Filed: 1954-09-30
Abstract: Ethylene is manufactured from methane or a gas consisting mainly of methane by subjecting it to a first heat treatment at a temperature at which the formation of acetylene is substantially precluded, separating the ethylene so formed, and returning the methane to the cycle, the residual gas being worked up into ethylene at a lower temperature in a second heat treatment in accordance with the process of the parent Specification.  The first heat treatment is conducted at 800-1100 DEG  C., preferably 950-1050 DEG  C., and the second process at 600-800 DEG  C., preferably at 700 DEG  to 750 DEG  C., the hot gases from the first treatment preferably being used to heat the gases of the second treatment. A catalyst such as an oxide of metals of the 2nd, 3rd and 4th Groups of the Periodic System to which may be added a small proportion of a heavy metal may be used.  In an example, methane is passed at 5 cu. metres per hour over aluminium silicate activated with chromium, at 1050 DEG  C.  After removal of methane and acetylene the residual gas is subjected to heat treatment in a coiled tube heated externally to 800 DEG  C.  A mixture of ethylene, propylene, butylene, saturated hydrocarbons and hydrogen is produced from which the ethylene is removed by washing with oil of the type used in hydraulically-operated apparatus.
Patent GB-1458566-A (GB)
Title: Diaper fastening system
IPC: A61F13/49
Filed: 1974-06-26
Abstract: 1458566 Diapers PROCTER & GAMBLE CO 26 June 1974 [27 June 1973] 28286/74 Heading A5R [Also in Division A3] A diaper includes a fastening tape system attached by first and second portions 30, 31 to opposite surfaces thereof and a third fastening portion 32 which can be adhered to an opposite corner of the diaper. Portion 32 may have a release liner 43 or may be folded back over portion 30. Portions 30, 31 may be attached to the margins of the top and bottom sheets 25, 26 if they extend beyond the absorbent layer 24. The diaper includes an absorbent core having a hydrophobic top sheet 25 and a moisture impervious back sheet 26. The back sheet 26 and top sheet 25 may be overlapped along the edges of the top surface. The top sheet may be folded on itself at each end to form waist band portions and the core may extend short of the lateral edges of the diaper.
Patent GB-686870-A (GB)
Title: Improvements relating to boxes
IPC: B65D83/04
Filed: 1950-11-20
Abstract: 686,870. Boxes. FREYSTATZKY, K., (trading as METALLWAREN-FABRIK WANSBEK). Nov. 20, 1950 [Dec. 12, 1949; Dec. 27, 1949], No. 28335/50. Class 18 Articles may be delivered singly from a box comprising a top 4, side walls 5 and end walls, an inner bottom 2 having an opening b, adjacent an end wall 6, for the passage of an article; and an outer bottom 3, relatively slidable endwise and having its inner surface spaced from the opposed edge of the end wall 6 a distance not less than the thickness of an article. A cut-out a is provided in the end wall 6. The inner surface of the outer bottom, opposite the opening b, may have a recess c into which the article drops, the depth of the recess and the height of the cut-out being such as together to provide clearance for an article; or the recess may be omitted and the height of the cut-out correspondingly increased, the shoulder 11 thus preventing delivery of more than one article at a time. A stop may be provided on the outer bottom to limit its sliding movement by engagement with the end wall 6.