baber/WOPTO huggingface dataset:
Patent GB-741727-A (GB)
Title: Manufacture of regenerated cellulose structures from viscose
IPC: D01F2/08
Filed: 1952-05-12
Abstract: Regenerated cellulose filaments, films and like products are produced by extruding viscose containing a salt of an N-substituted dithiocarbamic acid (said salt being soluble to the extent of at least 0.05 per cent in 6 per cent aqueous sodium hydroxide solution) into an acid coagulating bath containing 1-15 and preferably 3-10 per cent of zinc sulphate.  Filaments thus produced may be stretched, preferably in a secondary hot bath. The salt should contain no radical of more than 18 carbon atoms and is preferably a mono- or diN-substituted dithiocarbamate containing no radical of more than 10 carbon atoms and having the nitrogen atom attached to aliphatic carbon.  The salt may be sodium cyclohexyl, amyl, butyl, monoethanol, hexymethylene bis, methyl, benzyl, ethylene bis, 1,3-cyclohexane bis, dibutyl, dimethyl, dioctyl or lauryl dithiocarbamate, potassium pentamethylene dithiocarbamate, lithium cyclohexyl dithiocarbamate, sodium hexamethylene bis (isobutyl dithiocarbamate), sodium ethylene-bis (methyl dithiocarbamate), sodium 1.4-cyclohexane-bis (ethyl dithiocarbamate), or sodium xylylene-bis (dithiocarbamate). The salt may also be an ammonium or an amine salt.  The concentration of the dithiocarbamate in the viscose should preferably be up to about 0.75 and more particularly up to 0.5 per cent, a generally useful range being 0.05 to 0.3 per cent by weight of the viscose.  In addition to the dithiocarbamate there may be present in the viscose the etheric modifiers described in Specification 741,728 and/or polyethylene glycol of molecular weight about 300-1000.  Sodium sulphate is usually present in the spinning bath but is not essential.  The bath may also contain additional salts of divalent metals such as manganese sulphate or nickel sulphate and particularly ferrous sulphate.  Preferably the spinning bath contains, in addition to 1-15 per cent of zinc sulphate, 4-12 per cent of sulphuric acid and 13-25 per cent of sodium sulphate, optionally with 1 to 5 per cent ferrous sulphate.  The filaments may be stretched 20-30 per cent for textile yarns or 80-100 per cent for high tenacity yarns in a secondary bath consisting of water, 1-3 per cent sulphuric acid or a four-fold dilution of the coagulating bath, preferably at 50-100 DEG C.  In an example an unripened viscose of salt index 16.0 containing 5 per cent of cellulose, 6.5 per cent of sodium hydroxide and 0.15 per cent of sodium cyclohexyl dithiocarbamate is spun at 62 DEG  C. into a coagulating bath containing in aqueous solution 9.5 per cent of sulphuric acid, 17 per cent of sodium sulphate and 10 per cent of zinc sulphate.  The filaments thus produced are stretched 100 per cent in a 2 per cent sulphuric acid bath at 98 DEG  C.  The products have a high tenacity, high fatigue resistance and a non-crenulated surface, and exhibit reduced gel swelling during manufacture.  The process may also be carried out with a normal ripened viscose containing a dithiocarbamate. Specifications 652,741, 652,746 and 654,083 also are referred to.
Patent GB-441833-A (GB)
Title: Improvements in and relating to alloys
IPC: C22F1/10
Filed: 1934-04-20
Abstract: In order to render iron-nickel alloys insensitive to rapid cooling from high temperatures when used for magnetic purposes, the alloys are subjected to a prolonged annealing, e.g. for more than 24 hours, at 700-1300 DEG  C. in a neutral or reducing atmosphere, e.g. of nitrogen or hydrogen.  Articles made from such alloys by cold working may be annealed at 700-1100 DEG  C., and cooled in still air.  The alloys contain 30-85 per cent of nickel, and carbon not exceeding 0,03 with or without one or more of the elements copper, manganese, molybdenum, tungsten, or vanadium and silicon in a total amount not exceeding 10 per cent.
Patent GB-400646-A (GB)
Title: Improvements in or relating to display signs or the like
IPC: G09F13/26
Filed: 1932-04-26
Abstract: 400,646. Electric discharge tube signs. PULFORD, R., 23, Lynton Gardens, Colindeep Lane, Hendon, London. April 26, 1932, No. 12003. [Class 3 (ii).] An electric discharge tube sign comprises a sheet of glass or other transparent material provided with an interrupted surface groove on one side, a second sheet adjacent the grooved side of the first sheet and provided on the adjacent side with an interrupted surface groove which is the complement of the other groove, and an intermediate sheet, at least partially transparent, provided with apertures for the communication of the terminal points of the grooves so as to form a continuous chamber for the gas discharge. As shown, the sign comprises a glass sheet 21 provided with a groove 26 tracing the outline of the character but discontinued for those parts which if provided would intersect with other parts of the groove, a transparent sheet 22 provided with a groove 27 corresponding to the required outline between the terminal points 24, 25 of the groove 26 and a transparent sheet 23 provided with apertures 28 registering with the terminal points 24, 25 and the terminal points of the groove 27. The outer face of the sheet 22 may be formed with concavities or convexities and silvered. The gas chamber formed by the grooves may serve for edgewise illumination of characters formed either by painting on the surfaces of the sheets, by applying stencils thereto, or in one of the sheets by etching or sandblasting.
Patent GB-1494069-A (GB)
Title: Nuclear reactor
IPC: G21C19/19
Filed: 1976-03-25
Abstract: 1494069 Reactors WESTINGHOUSE ELECTRIC CORP 25 March 1976 [9 April 1975] 12027/76 Heading G6C In a liquid metal cooled fast breeder reactor, the fuel assemblies 52 have lower nozzles 60 located in openings 50 in a lower core plate 48 and upper nozzles 58 located in openings 54 in a core holddown structure 36. This structure 36 comprises two separate sections, a large core cover 68 and a small core cover 70. The large core cover 68 is coaxial with the reactor core 12 while the small core cover 70 is mounted eccentrically within the large core cover 68. A material handling column 40 housing fuel transfer equipment (not shown) is mounted eccentrically within the small core cover 70. Each fuel assembly 52 has a spring 62 associated with its lower end, these springs being compressed during the expansion of the fuel assemblies 52 occurring on reactor start-up thereby preventing buckling and cracking of the shells of the fuel assemblies 52. As is shown schematically in Fig. 5, during normal reactor operation the large and small core covers 68, 70 are positioned atop the fuel assemblies 52. In the closure head of the reactor pressure vessel (Fig. 1, not shown) there are mounted two rotatable plugs 26, 28, one located eccentrically within the other. The large core cover 68 is connected to the large plug 26 by rigid vertical extensions 42 and the small core cover 70 is similarly connected to the small plug 28 by rigid vertical extensions 34. Bolts 86 secure a flange 76 on the small plug 28 to the top 88 of a slot 80 in the large plug 26. Flanges 92, 94 on the core covers 68, 70 are in close contact. In order to allow refuelling operations to commence, the bolts 86 are released and the large plug 26 vertically raised by jacks 96. The large plug 26 above is raised (Fig. 6, not shown) until the flange 76 contacts bearings 90 on the bottom of the slot 80, after which both plugs 26, 28 are raised (Fig. 7, not shown). At this stage, both core covers 68, 70 have been lifted off the fuel assemblies 52 and rotation of the material handling column 40 can commence.
Patent GB-421885-A (GB)
Title: Improvements in and relating to the combating of insect pests and the like
IPC: H01H29/16
Filed: 1933-04-25
Abstract: 4-Fluorcoumarin is prepared by passing fluorine, either alone or mixed with a diluent such as nitrogen, through a solution of coumarin in an inert solvent such as carbon tetrachloride, and evaporating the solution to yield crystals.  The fluorcoumarin is stated to have insect-repellent properties.ALSO:Soap having insect-repellant properties is obtained by the incorporation of 4-fluorcoumarin.  The Specification as open to inspection under Sect. 91 refers to the use of derivatives of "condensation products of organic acids" and particularly to substitution products of aromatic lactones such as coumarin, substances definitely specified being 6-methyl-, 7-methyl-, 4-bromo-1, 3-chloro-, 3-ethyl-, and 2-thio-coumarin.  This subject-matter does not appear in the Specification as accepted.ALSO:Compositions for repelling insects consist of fluorcoumarin together with a liquid, semi-solid, or powdered carrier. Fluorcoumarin may be prepared by passing fluorine, alone or with an inert diluent such as nitrogen, through a solution of coumarin in an inert organic solvent such as carbon tetrachloride. The solution is evaporated to yield crystals of 4-fluorcoumarin.  The insert repellent compositions contain from 1 to 50 per cent of the active substance together with the carrier, which may be an organic solvent such as alcohol, water containing an emulsifying agent such as turkey red oil or a phosphatide, a fatty oil, an intermediate paraffin fraction, a soap, a cosmetic powder, a salve base consisting of wool fat, petroleum jelly, paraffin and water, or other salve bases containing carnauba wax, ceresin, gelatin, glycerin, or animal fat.  The compositions may be applied to the human or animal body, to clothes or carpets, and to plants, and may be used for the external protection of foodstuffs and for spraying into rooms.  The Specification as open to inspection under Sect. 91 refers to the use, as active substances, of derivatives or homologues of "condensation products of unsaturated organic acids" and particularly to substitution products of aromatic lactones such as coumarin, substances definitely specified being 6-methyl-, 7 methyl-, 4 bromo-, 3-chloro-, 3-ethyl-, and 2 thiocoumarin. This subject-matter does not appear in the Specification as accepted.
Patent GB-528191-A (GB)
Title: Improvements in collapsible boats and the like
IPC: B63B7/06
Filed: 1939-04-22
Abstract: 528,191. Collapsable boats. GOATLEY, F. April 22, 1939, No. 12124. [Class 113 (ii)] A collapsable boat has a bottom 1 reinforced by a strake 4, a gunwale 6, canvas sides 8 secured to the gunwale and to the outside of the strake 4, and a number of gunwale supporting struts 14, hinged so that they lie in a fore and aft direction when the boat is collapsed. The struts may be hinged to the bottom and be provided with bolts 16 to lock them to the gunwale in operative position, or they may be hinged centrally to a stringer 12 and engage a clip on the bottom. The bow and stern constructions of the boat are substantially similar to those described in Specification 480,987.
Patent GB-732406-A (GB)
Title: Improvements in or relating to the retreading of tyres
IPC: B29D30/54
Filed: 1953-05-01
Abstract: 732,406. Tyre-retreading devices. HAWKINSON CO., P. E. May 1, 1953 [Oct. 9, 1952], No. 12175/53. Class 87 (2). A device for use in retreading tyres comprises a cylindrical matrix formed from sheet metal and having, its opposite ends bent to form radially inwardly projecting cross-sectionally shaped tread material confining flanges 2, the narrow ends of which are radially innermost, a reinforcing jacket 9 about the external surface of the matrix and covering the outermost ends of the flanges, a conduit 6, for heating fluid, comprising two outer portions each surrounding the matrix and lying one each within a flange and. beneath the reinforcing jacket and a central portion 16 wound generally spirally around the outer surface of the reinforcing jacket, and an inlet and an outlet fitting 12 through which heating fluid can pass into and from the conduit. An endless wire ring 5 is inserted in the bottom of each V-shaped confining flange 2 and above it, in the V of the flange, a single turn of the conduit 6 is nested with its ends bent outwards to project into a head 12. The conduits 6 are soldered inside the flanges 2 to increase heat transfer. The sheet metal reinforcement 9 is secured by bending over its edges 11. The generally spiral tubular heating conduit 16 has its ends bent to enter the heads 12, which project through openings in the reinforcement and are adapted to receive either a steam inlet pipe or a bleeder valve or pet cock. Specification 420,829 is referred to.
Patent GB-376697-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1931-07-06
Abstract: 376,697. Automatic exchange systems. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, TAYLOR, R., 30, Oulton Road, Wavertree, both in Liverpool, MASON, J. A., 52, Belgrave Street, Liscard, Wallasey, Cheshire, and McCLEW, J. W., 27, Arlescourt Road, West Derby, Liverpool. July 6, 1931, No. 12407/32. Divided on 376,265. Drawings to Specification. [Class 40 (iv).] A group of two-directional double-wiper finder-switches is associated in common with three control circuits dealing primarily with calls in levels 1-4, 5-6, 7-10, respectively, but arranged so that in the case of simultaneous calls, each control circuit is capable of dealing with a call in any level. A starting relay is assigned to each pair of levels and if, for example, both starting relays of levels 1-4 are energized simultaneously, a series connection over their contacts starts the second control circuit. Similarly, if the starting relay of levels 5-6 is also energized, all three control circuits are brought into use. The invention is described with reference to a system identical with that described in Specification 376,265. Specifications 293,294, [Class 40 (iv), Telephones &c.], and 366,143 are referred to.
Patent GB-375428-A (GB)
Title: Improvements in and relating to shock absorbers and the like
IPC: F16F7/04
Filed: 1930-12-19
Abstract: 375,428. Shock absorbers. CARWARDINE, G., 17, Macaulay Buildings, Bath. Dec. 19, 1930, No. 12419/32. Divided on 372,830. [Class 108 (iii).] In frictional vibration dampers for vehicles in which the pressure between frictional discs applied to the pivotal joint connecting two levers is varied automatically in accordance with the acceleration of some moving part of the apparatus, a floating inverted member applies a variable pressure to one of the levers through balls engaging shaped recesses in each member. The levers 1, 2 are pivoted respectively to the frame and the axle and their relative angular movement is restrained by frictional elements 27, 29 which are compressed between the ends of the arms by spring washer 26 and a central bolt 31. The pressure on the frictional elements is transmitted through balls 32 engaging elongated recesses in one of the arms 1 and in the face of a disc 30 having an extension carrying a heavy weight 36. When the apparatus moves vertically the inertia of the weight 36 causes the balls to ride up the sides of the grooves and separate the plates 1, 30 to a varying extent depending upon the acceleration. The inclination of the recesses at the two ends may be different thus giving a different effect on the rebound and compression of the main springs. Specification 346,493 is referred to.
Patent GB-975160-A (GB)
Title: Improvements in or relating to variable focal length lens systems
IPC: G02B15/14
Filed: 1963-03-29
Abstract: 975,160. Varifocal objectives. P. ANGENIEUX. March 29,1963 [June 23,1962; Nov. 22, 1962], No. 12499/63. Heading G2J. The convergent front member of the objective has a convergent rear part and a divergent front part, the latter being axially movable for focusing. Preferably the objective is of the type having a convergent front member C1, a movable divergent member C2, a movable convergent member C3 and a fixed convergent rear member C4. In this objective the divergent part of the front member is made up of three elements 21, 22 and 23, element 22 being a convergent meniscus of which the front surface has a radius of curvature less than the focal length f of the divergent part but greater than 0.40f. This meniscus in a second embodiment forms the rear element of the divergent part of the front member and, in a further embodiment, it is embraced by two divergent elements at the front and another divergent element at the rear. Optical data are given for three examples, one being of an objective as shown.
Patent GB-275737-A (GB)
Title: Improvements in and relating to back-rests for folding seats
IPC: A47C4/18
Filed: 1926-05-17
Abstract: 275,737. Barker & Co., (Coachbuilders), Ltd., and Robins, F. J. May 17, 1926. Rests, back; folding seats. - The backrest 3 of a folding seat is carried by a, part 2 slidable on a member 1 pivoted at 4 to a base 5. A lever 7 is pivoted at 6 to the member 1 and is connected by links 8, 10 to the. part 2 and the base 5 respective]y. When the seat is folded, the back-rest is lowered on the member 1.
Patent GB-542420-A (GB)
Title: Improvements in electrical switchgear equipments having isolating arrangements
IPC: H02B1/00
Filed: 1940-08-05
Abstract: 542,420. Switchgear structures. BRITISH THOMSON-HOUSTON CO., Ltd., TRENCHAM, P. R. H., and REGIS, E. D. Aug. 5, 1940, No. 12602. [Class 38 (v)] In withdrawable metal-clad switchgear, extension conductors to one set of plugging contacts, for earthing the cable or busbar, are avoided by providing the movable portion of the gear with a displaceable plugging contact or contacts 10 which can be moved from the position in which it connects the associated breaker-terminal 15 with the fixed cable or busbar contact to that in which it is connected with an earthed contact located on the fixed part of the gear and displaced from the cable or busbar contacts. The conductor 10 is shown as mounted on a disc 13 pivoted to the wall of the movable part of the gear which wall has an arcuate slot 14 so that when withdrawn, 10 can be moved to the position in which, when replaced and the breaker closed, the cable or busbar connected to the other breaker-terminal is earthed. The connection between 10, 15 comprises a disc 16 pressed axially by spring 17 against the terminal. Specification 243,165, [Class 38 (v)], is referred to.
Patent GB-901068-A (GB)
Title: Improvements relating to electric lanterns
Inventor: TURNER LESLIE WILLIAM VICTOR
IPC: F21S8/08
Filed: 1960-04-08
Abstract: 901,068. Lanterns for tubular electric lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 10, 1961 [April 8, 1960], No. 12654/60. Class 75 (4). In a lantern for tubular electric lamps, especially for street lighting, and having at one end a longitudinally-extending tubular structure for receiving a supporting- arm, the tubular structure extends inwardly of the lantern so as to be located in overlapping relation with a lamp or lamps mounted longitudinally in the lantern and the substantially non-luminous endportion of the lamp or lamps located at the mounting end and embodying an electrode structure are enclosed in an opaque housing forming part of the lantern. In the form shown, the lantern comprises an end structure 5 carrying a tubular member 9 for engaging a support arm at its upper end and a bracket 11 supporting a tray 12 on which are carried the lamp control gear (not shown) and the lamp-holders 14. One end of the tray 12 extends through an aperture in the structure 5 so that the lamp-holder or holders at this end of the tray lie below the member 9. An elongated vessel, the upper part 3 of which is slightly translucent and the lowest part 4 transparent or diffusing encloses the main part of the lamp 1 and tray 12 and is secured to the structure 5 by bolts 7 on the structure and brackets 8 on the vessel, a gasket 6 being interposed. The parts of the lamp 1 and tray 12 on the opposite side of the structure 5 are enclosed by an end cover 15 held in place by a screw 18 engaging a bracket 16 on the tray, a gasket 17 being interposed between the cover 15 and the structure 5.
Patent GB-941570-A (GB)
Title: Improved control apparatus for gate type valves
IPC: F16K31/143
Filed: 1962-04-03
Abstract: 941,570. Valves. McNAMEE INDUSTRIES PTY. Ltd. April 3, 1962 [April 5, 1961], No. 12684/62. Heading F2V. A gate valve 10 is actuated via a manually movable screwed spindle 15 by two pistons 17 acting on a bridge 16 carrying the spindle. Handle 18 rotatably but non-axially movably carried on the bridge is clamped by nut 24a to sleeve 24 screwing on the spindle. When the handle is rotated to start opening the valve, a ball 32 moves out of a spindle recess 15a into a hole in sleeve 24 and displaces a plunger 22 from the hole against spring 22a whereby a cable 23 moves an indicator 35 to the " manual " position and positions a valve 34 whereby any pressure fluid from a control valve connected at 36 by-passes the pistons. If the valve is opened hydraulically, the plunger and ball are in their respective hole and recess so that lever 35 indicates " automatic " and valve 34 directs fluid from the control valve to the larger undersides of pistons 17 to obtain the greatest effort for overcoming possible sticking. This may also be achieved by using the bridge guides 19 as additional hydraulic pistons. Spring 29 reduces shock particularly at closing.
Patent GB-1462245-A (GB)
Title: Pressure reducing valves
IPC: F16K47/08
Filed: 1974-03-21
Abstract: 1462245 Valves PEGLERS Ltd 21 March 1974 [11 April 1973] 12712/74 Heading F2V A fluid pressure reducing valve comprises an inlet 14, an outlet 13, a valve closure 10a actuatable by a diaphragm or piston 3, and means 10, 30 on the downstream side of the closure for restricting the flow when the closure is in the substantially fully open position. Valve closure means 10-10b, is part spherical and is movable on valve stem 4 about a point B so that the closure can seat squarely on valve seat 15 even if the latter is out of alignment. Closure member 10 is biased away from seat 15 by a spring 7 whose loading can be adjusted by a plug 8a rotated by a cap 8d. In use liquid under pressure enters through an offset inlet 14, swirls through a filter 27 into a chamber 20, thus urging closure 10 to the right and passes through passages 12, 12b into a chamber 22. When water is drawn-off from outlet 13 the pressure in chamber 21 drops slightly below the static pressure setting, which in turn lowers the pressure in chamber 22 and spring 7 opens the valve to allow liquid flow to take place. As the flow is increased closure 10 moves away from seat 15 to restrict the flow between the closure and frusto-conical surface 30. Sleeve 23 and closure 10 can be replaced by member of different sizes so as to alter the flow characteristics of the pressure reducing valve. The valve parts 1, la, 2, 23, can be made of copper or aluminium alloy or acetal resin, and the diaphragm 3, member 10a and the sealing means, may be of neoprene, reinforced neoprene, or natural or synthetic rubber. A non-return valve with or without a relief valve can be built into the outlet sleeve 23.
Patent GB-569175-A (GB)
Title: Improvements in racks for holding articles, particularly the cords of signal flags
IPC: B63B45/00
Filed: 1943-08-06
Abstract: 569,175. Brackets &c. FAUNER, J. F. Aug. 6, 1943, No. 12722. Convention date, Aug. 15, 1942 [Class 52 (v)] A rack for supporting the ring and hook ends of cords of ships' signal flags within a "flag bag" or "flag box" comprises open bottomed members 17 attached by studs 33, Fig. 3, to a plate 16 carried on the upright frame members 10 of the " box," the members 17 being fitted with spring arms 34 to retain the hooks 20 or .corresponding rings within notches 29 in the side walls of the members. The plate 16 carries an index plate 15 above the rack and is curved at its lower edge 18 to keep the cords untangled. Each member 17 has a notch for a ring in front and one for a hook behind.