baber/WOPTO huggingface dataset:
Patent GB-1318122-A (GB)
Title: Process for producing highly crimped viscose rayon
IPC: D01F2/10
Filed: 1971-04-19
Abstract: 1318122 Crimped viscose rayon fibres NITTO BOSEKI CO Ltd 19 April 1971 [21 July 1970 9 Sept 1970] 23508/71 Heading B5B A process for preparing highly crimped fibres from viscose comprises adding to a viscose solution obtained by xanthating with 24%- 32% (w/w based on cellulose) carbon disulphide (a) 1-10% (weight of metal based on weight cellulose) of at least one water- or NaOH- soluble Zn, Cd, Pb or ferrous compounds; (b) 0À5-10% w/w based on cellulose of a polymer or copolymer of an alkylene oxide; and (c) 1-10% w/w based on cellulose of an alkylene oxide derivative of a diamine or polyamine, ripening the resulting viscose to a γ-value of 37-49 and a "conditional" Hottenroth number (as defined in the Specification) of 10-20, spinning the ripened viscose into an H 2 SO 4 - sulphate bath containing 1-10% by weight of zinc sulphate and stretching and regenerating the resultant fibres in a second bath containing 0À1-12% H 2 SO 4 , 0-15% Na 2 SO 4  and 0-10% ZnSO 4  at a temperature of 70‹-100‹ C. Preferably the group (a) modifier is added to the viscose in an amount at 2-6% by weight and is selected from sodium zincate, zinc sulphate, lead oxide, cadmium acetate, ferrous sulphate, zinc oxide, zinc hydroxide, zinc acetate, cadmium sulphate, cadmium chloride, cadmium nitrate, ferrous chloride and lead nitrate; the group (b) modifier is added in an amount of 1-7% by weight and is selected from polyethylene glycols, polypropylene glycols and copolymers of ethylene and propylene oxides; the group (c) modifier is added in an amount of 2-5% by weight and is selected from compounds prepared by reacting ethylene and/or propylene oxides with ethylenediamine, diethylenetriamine, pentaethylenehexamine, propylenediamine or p-xylenediamine.
Patent GB-1180485-A (GB)
Title: Expansion Joints for use in Steam and other Pipe Lines
Inventor: GOLDING WILLIAM FRANK
IPC: F16L27/12
Filed: 1967-05-20
Abstract: 1,180,485. Pipe joints. FOSTER POWER PIPING Ltd. 4 July, 1968 [20 May, 1967], No. 23525/67. Heading F2G. A telescopic expansion joint is sealed by a plurality of preformed packing rings 32 compressed against a stop-ring 25 and a rim 35 on an axially tightenable flange 36. The stop-ring lodges against a shoulder (30, Fig. 3, not shown) in the outer pipe 14 and is sealed by 0-rings 26, 27. The packing rings 32 may comprise canvas, asbestos, graphite or rubber, or a combination of these. Steam jackets 18, 19, 41 are provided.
Patent GB-680813-A (GB)
Title: Improvements in or relating to endless-track vehicles
IPC: B62D55/10
Filed: 1949-09-13
Abstract: 680,813. Endless-track vehicles. LEWIS, T. M. Sept. 7, 1950 [Sept. 13, 1949], No. 23626/49. Class 79 (i) An endless-track vehicle comprising two endless chains of balls or rollers and a load carrying member supported on the lower runs of the balls or rollers, has the upper run of each chain located to one side of the lower run. More than two of such endless chains may be used. The endless chains may move in a substantially horizontal path. At the end of its ground-engaging run, each track may mount an inclined ramp to move it clear of the ground. As shown in Figs. 1 and 2, the platform 1 is supported on the rollers 7 of a pair of endless tracks moving in a substantially horizontal plane. Each roller comprises a pair of flanges 8, Fig. 3, fully mounted on a central shaft 9. The shafts 9 each carry a pair of diametrically projecting studs 10 by means of which adjacent rollers are corrected by springs 11. The tracks are guided by track rods 13 and 15, which engage between the pairs of flanges 8 ; one of the straight runs 13 being bent down so that the rollers project through the slot 14 and engage the ground. Instead of the rollers being connected by springs they may be connected by a flexible cable, lengths of spring being used as spacers. In an alternative arrangement, Figs. 4 and 6, the two tracks are arranged one within the other. The rollers 18 are guided by track guides 16, 17, ramps 20 being provided to lift the rollers clear of the ground at the end of their ground-engaging run.
Patent GB-718519-A (GB)
Title: Improvements in printers' blankets
Inventor: PARTINGTON JAMES
IPC: B41N7/00
Filed: 1951-10-11
Abstract: 718,519. Printers' blankets. DUNLOP RUBBER CO., Ltd. July 30, 1952 [Oct. 11, 1951], No. 23648/51. Class 100 (2). [Also in Group VIII] A printers' blanket having a low elongation in the longitudinal direction comprises a rubberized fabric in which is incorporated a fabric ply of pre-stretched warp components 3 having a low weft content, e.g. not exceeding 2.5 weft threads per inch, or no weft threads at all, and a ply of normal body fabric. The pre-stretched warp components 3 may be situated between two plies of normal body fabric 1, 2, a backing of fine cambric 4 being on the non-rubberized face of the blanket. The warp component 3 may comprise pre-stretched cotton or rayon threads. The blanket may be prepared by coating the assembly with rubber 5, by calendering or spreading, and vulcanizing in the usual way. The warp components 3 may include weft threads composed of a material, e.g. cellulose acetate, which is softened by a rubber solvent, the solvent being then included in the layer of rubber 5, vulcanizing taking place after the weft threads have softened. Alternatively the weft threads may be such as will soften at the vulcanizing temperature. The rubberized assembly may be stretched during or after softening of the weft in order to remove warp crimp. Pre-stretching of the warp components may take place in any suitable way, e.g. in steam. If the weft threads are omitted altogether the warp components 3 may be made by running the cords from a creel through a reed and then coating them with rubber composition either by calendering or spreading.
Patent GB-190447-A (GB)
Title: Improvements in or relating to the control of trains
IPC: B61L3/22
Filed: 1922-08-31
Abstract: 190,447. Angus, A. R. Dec. 13, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Track apparatus actuating signals on trains and for stopping trains.- In apparatus on trains in which devices for giving signals or applying brakes are restained from operating by electromagnets energized under control from the track, either inductively or conductively, by energy in the track rails or in auxiliary conductors, an electromagnetic device 382 is adapted to move a speedlimiting member 300 into specific different positions when energized by currents of different strength or frequency and means are provided on the track for supplying such currents to different parts cf the track. The contacts of the device 382 are connected in series with the warning-device 310 and the stop device 324 through a switch 400, which is set according to the direction in which the train is moving and in some cases through a switch 318, the position of which is dependent upon the speed of the train at any time, so that at any position of the arm 300 corresponding to the allowable speed in a certain direction the circuit to either the warning or stopping device is completed independently of the speed, and the circuit to the other of these devices is completed only if the speed does not exceed the prescribed limit provided that the switch 400 is set to the proper position for traffic in the determined direction.
Patent GB-599110-A (GB)
Title: Improvements in or relating to fastening or locking devices for hinged windows, doors or like structures
IPC: E05C1/06
Filed: 1945-09-13
Abstract: 599,110. Sliding bolts. CAMERON, E. J. Sept. 13, 1945, Nos. 23677 and 30202. [Class 44] A locking device for windows, doors and the like, comprises a bolt slidable in a casing and having a slot or groove at right angles to the direction of its sliding movement, a lever assembly carrying a pin for engagement with this slot being pivoted on the casing, so that swinging of the lever causes the bolt to engage in or be disengaged from a staple or slot. A casing 1, housing a bolt 2, has a post 4 on which is pivoted a lever 5 ; centred about this post 4 is a semicircular slot in the casing through which projects a pin 7 on the lever. The bolt 2 has, at right angles to the direction of its sliding movement, a slot 8 engaged by the pin 7. When the bolt is unlocked, the pin 7 is at one end of the semicircular slot and at one end of the transverse slot 8 and in this position a leaf spring 11 presses against a flat 10<1> on a boss 10 provided on the lever adjacent its pivoting point, and thus holds the bolt in place. The bolt 2 is projected by means of the pin 7 into a staple 12, the lever 5 being swung so that the pin travels to the other end of the semicircular slot and then back again to the same end of the transverse slot 8 ; in this position the spring 11 engages another flat 10<1> on the boss 10, and the pin 7 and pivot 4 lie in a line perpendicular to the transverse slot 8 in the bolt, making it almost impossible for a burglar to force back the bolt by pressing a knife blade against it. As a further security, a displaceable locking pin 13 may be provided to lie behind the bolt 2 and hold it locked. As shown, the lever 5 has a movement of 180 degrees, but this may be reduced to 90 degrees. The operating handle may be removable so that it acts as a key ; alternatively, the whole device may be enclosed in a casing and be operated by a key, the handle being dispensed with.
Patent GB-253762-A (GB)
Title: Improvements in, and relating to, apparatus for the testing of sparking plugs, magnetos, and the like
IPC: F02P17/00
Filed: 1925-09-23
Abstract: 253,762. Rickard, F. P. E., Rickard, P. E., and Hetherington, J. Sept. 23, 1925. Testing and indicating.-An instrument for testing sparking-plugs and magnetos comprises a rotatable commutator D carrying a number of interrupted circumferential contacts El - - E<8>, a common bus-bar J for plugs and magneto, and an earthing bar K. Between points j<1>, k<1> on the bars J, K is a spark-gap visible through a glass cover or lens N. On each of the circumferential contacts E<1> - - E<8> rest two of a series of springs F<1> - - F<16>, one of each pair being connected to a contact on the magneto distribution board and the other to a plug. The bus-bar J has a continuous longitudinal contact G and a series of longitudinal spaced stud contacts H<1> - - H<8>, each of half the width of the corresponding circumferential contact, as shown in Fig. 7. In order to test a particular plug, the commutator is rotated until the corresponding pair of springs rest on the bar contact G, in which position the plug and magneto are connected with the spark gap j<1>, j<2> in parallel. Should no spark occur at the test gap, a further partial rotation of the commutator brings the magnet spring contact on to the corresponding stud contact H<1> - - H<8>, the plug spring contact resting on the insulating cylindrical surface of the commutator, thus cutting out the plug. If no spark occurs at the test gap in this position, the magneto or leads are at fault. The operation is repeated for all the plugs. The bars J, K and contacts E<1> - - E<8> may be moulded in the insulating commutator body D, to which is fixed one end of a spring L for returning the commutator to the normal working position, shown in Fig. 3, in which no sparking takes place at the test gap. The other end of the spring L is attached to an enclosing casing M having a flange M<1> at one end by which it may be attached to the dashboard of a motor-car &c. A pointer M<2> moves over a scale to indicate the number of the plug or magneto terminal under test.
Patent GB-953431-A (GB)
Title: Improvements in or relating to the production of noble-metal layers by photographic agency
IPC: C13B50/00
Filed: 1960-07-08
Abstract: 953,431. Photographic processes. PHILIPS' GLOEILAMPENFABRIEKEN N.V. July 8, 1960 [July 11, 1959], No. 23939/60. Heading G2C. A light-sensitive layer is subjected to a "mirror exposure", treated with an aqueous germ introduction agent including a water-soluble mercury of silver compound to form an at least partly external metal germ image by reaction with the light-acted product in the layer, and this germ image is subjected to purely physical development by means of a non-stabilized intensifier. The "mirror exposure" is defined in tile Specification as a relationship between exposure energy and germ introduction bath concentration to result in a metal germ image of a specified electrical resistance. The noble metal images may be given electrical, mechanical, chemical, thermal or other after-treatment especially to reduce their electrical resistance when the process is directed to the production of printed wiring or circuits. Other applications are for making resistances, screens, grids, patterns, station name dials and such like. The images may be coated as with gold, platinum, palladium, iridium or rhodium for instance to resist sparks, wear or atmospheric attack. Details are provided in twenty examples, thus in Example I a surface seponified cellulose triacetate foil is impregnated with aqueous O-methoxy-benzenediazosulphonic acid sodium salt and cadmium lactate, dried exposed at 30 cms, distance from a 125 watt mercury vapour lamp behind a line negative for 5 to 180 seconds, treated in aqueous mercurous nitrate together with nitric acid to make a mercury germ image and then with a solution comprising metal, citric acid and silver nitrate as physical developer. Tables show resistance values of the resulting developed images using solutions of various concentrations before and after treatments as indicated above. Numerous further supports, sensitisers, solutions, developers and treatments are quoted in the rest of the examples and general description. Transfer of the final images to further supports may be made. Specification 953,432 is referred to.
Patent GB-836820-A (GB)
Title: Improvements in or relating to vacuum pipe systems
IPC: F04C29/00
Filed: 1956-08-03
Abstract: 836,820. Liquid ring pumps; rotary pumps. HERAEUS G.m.b.H., W. C. Aug. 3, 1956, [Aug. 16, 1955], No.24036/56. Classes 110 (1) and 110(2). A vacuum pump system comprises a Roots blower and a water-ring pump connected in series, both pumps being driven by a single motor so that the ratio of their speeds remains constant. In the plant shown, a Roots blower vacuum pump 1 is backed by a water-ring pump 2, the two pumps having a common driving motor (not shown). Either a shaft drive or belt drive may be used. A diffusion pump or, as shown, a high-vacuum Roots blower 8, having an evacuated jacket and with the driving motor contained within the casing, may be added. If the space to be evacuated contains dust, a centrifugal or cyclone separator 16 and a coarse separator 14 may be used. A handoperated valve 15 and a magnetic valve 13 may be provided. A magnetic valve 10, closing when the current supply to the motor is interrupted to prevent back flow of water from the water-ring pump 2, and a magnetic valve 9 which opens in the same event to admit scavenging air to the water-ring pump, may be provided. In addition, a non-return valve 7, a magnetic valve in the water supply to the pump 2 and a water thermometer may be provided. Pipe 3 communicates with atmosphere or with a vessel in which water is separated from the air for return to the water-ring pump. Preferably, the pump 1 has a delivery capacity 30 to 70% greater than that of the pump 2.
Patent GB-459381-A (GB)
Title: Improvements in and relating to pruning and like shears
IPC: A01G3/025
Filed: 1935-08-28
Abstract: 459,381. Handshears. DICKSON, R. C., Newton Farm, Bicknoller, near Taunton. Aug. 28, 1935, No. 24053. [Class 30] Pruning shears 7 mounted on one end of a long handle 1 are actuated by a pair of members 12, connected to the other end by links 13, and to a rod 3 by links 15. The rod passes along a central bore 2 in the handle and is connected at the other end by toggle links 8 to the shears 7. When the members 12 are gripped by the hand they move inwards with parallel motion and draw down the rod 3 closing the jaws of the shears. Return motion is given by a helical spring 18. The plane of the members 12 is at right angles to that of the blades 7.
Patent GB-392146-A (GB)
Title: Improved means of lubricating conveyor or driving chain link and roller pins, colliery trams, trucks, and the like vehicles
IPC: F16N13/00
Filed: 1931-08-27
Abstract: 392,146. Force-feed lubricating. ABBOTT, T., Bell Hotel, Llangrwyney, n e a r Abergavenny, Monmouthshire, and ABBOTT, J. S., Nythfa, Creigiau, near Cardiff. Aug. 27, 1931, No. 24066. [Class 12 (iii).] Means for lubricating conveyer or driving chain link and roller pins or the wheels of colliery trams, trucks, or like vehicles comprise a number of arms or recesses provided on or in a block and adapted to be engaged successively by passing pins or wheels so as to cause the block to be rotated around a post, and a reciprocating pump or pumps to be operated, whereby lubricant supplied through the interior of the post is forced through that arm or recess which is at the moment in engagement with a pin or wheel into the latter. As shown in Figs. 1 and 2, the arms G on the block B are fitted with plungers A having valved nozzle ends O adapted to be engaged by passing wheels, the plungers being moved inwards thereby against the action of springs L, V. Lubricant is supplied through a flexible tube D<4> and a non-return valve T to a bore D in the post C and during the outward movement of a plunger is drawn into the corresponding arm through ports E, H which are then in register. During the subsequent inward movement of the plunger, the ports E, H being then out of register, the lubricant is forced through the nozzle end O of the plunger into the engaged wheel. An enlarged head P on the end of the plunger serves to position the nozzle in correct engagement with the wheel. The post C is mounted on a plate F capable of limited sliding movement on a frame S. Recesses R in the block B co-operate with a headed rod Q slidable in the frame and loaded by a strong spring, whereby after each engagement of a plunger with a wheel the block is retained in correct position. A guide rail F<3> mounted on the plate F ensures that, if a wheel projects too far, it first engages the rail and moves the plate into correct position. In the form shown in Figs. 4 and 5, passing wheels engage valved nozzles O in recesses X<1> or protruding arms K<1> on the block B, and a number of spring-loaded pump plungers A<1> arranged radially within the block co-operate with a stationary cam ring R<1> mounted on the plate F, which in this case is capable of limited sliding movement on the frame S against the action of springs T<3>. As the block is rotated by engagement of a passing wheel, the plungers A<1> first move inwards to force lubricant to the wheel through ports El, M<1>, which are then in register, and then move outwards to recharge the pumps. In a modification, the plungers are arranged radially within the post and co-operate with a cam ring secured to the block.
Patent GB-1274845-A (GB)
Title: Dyebath compositions
Inventor: MORTIMER KEITH
IPC: D06P1/651
Filed: 1968-05-21
Abstract: 1,274,845. Dyeing polyesters. YORKSHIRE CHEMICAL Ltd. 20 May, 1969 [21 May, 1968], No. 24086/68. Heading D1B. Copolymer polyester fibres having anionic groups are dyed using a composition comprising a cationic dye suitable for polyesters and a carrier of formula I:  in which Y is -CH 2 COOCH 3 , -CH 2 COOC 2 H 5  or -CH 2 COOC 2 H 4 . OH R 1  R 2  R 3  R 4  and R 5  each independantly represent hydrogen, halogen, or a methyl group at least one and not more than three of R 1  R 2  R 3  R 4  and R 5  being hydrogen. A disperse dye may be added to the dyebath when the copolymer polyester is blended with a homopolymer polyester not containing anionic groups, emulsifying agents, softening agents, bleaching agents and gasfume fading inhibitors may be added. Preferred compounds are 2, 4- and 2, 5-dichloro, 2, 4, 5- and 2, 4, 6-trichloro, 2, 4- 2, 5- and 2, 6- dimethyl 2-methyl-4 chloro and 2-chloro- 4-methyl-phenoxy acetic acid.
Patent GB-917624-A (GB)
Title: 2-sec.-butoxyphenyl n-methyl-carbamate
IPC: C07C271/06
Filed: 1961-07-04
Abstract: The invention comprises 2-sec.-butoxyphenyl N-methyl-carbamate which is used in insecticidal compositions.  In an example 2-sec.-butoxyphenyl N-methyl-carbamate is prepared by reacting 2-sec.-butoxy-phenol with methyl isocyanate in dioxane using triethylamine as catalyst.
Patent GB-534151-A (GB)
Title: Improved method for converting hydrocarbons
IPC: C07C5/373
Filed: 1939-08-22
Abstract: 534,151. Hydrocarbons. STANDARD OIL DEVELOPMENT CO. Aug. 22, 1939, No. 24167. Convention date, Jan. 7. Drawings to Specification. [Class 2 (iii)] Straight-chain paraffin hydrocarbons are converted into branched chain olefines having the same number of carbon atoms by subjection to a temperature of 600-1100‹F. at atmospheric pressure for 5 to 200 seconds in the presence of aluminium oxide or aluminium silicate in porous form, e.g. bauxite, clay or kaolin, alone or on a carrier such as silica gel or earthenware, or in the presence of phosphoric acid on silica gel. The aluminium catalysts may be activated by treatment with a mineral acid, e.g. phosphoric, boric or hydrofluoric acid, or with a Friedel-Crafts catalyst, e.g. aluminium chloride or iron chloride. The efficiency of the process may also be improved by the addition of dehydrogenation catalysts, such as oxides or sulphides of molybdenum, tungsten and chromium. The branched chain olefines produced may be removed from the reaction product, and the unconverted paraffins recycled for further treatment. The treatment of n-butane, a mixture of n-butane and isobutane, and of a refinery C4-cut containing butane and isobutylene is described in examples. In the latter case, the isobutylene is first removed, for example by absorption in sulphuric acid. A layout of plant for treating a butane-butylene cut is described. Specifications 18653/12, [Class 2 (iii)], and 496,676 are referred to.
Patent GB-1437581-A (GB)
Title: Easily openable closure cap
IPC: B65D55/08
Filed: 1974-05-31
Abstract: 1437581 Closure cap SCAL SOCIETE DE CONDITIONNEMENTS EN ALUMINIUM 31 May 1974 [1 June 1973] 24222/74 Heading B8T A metal cap consists of a cover member 1 held on to a container by a second member 5 having a gripping ring 15 connected by a web portion 16 to an edge portion 9 which is crimped on to the collar of the mouth of the container, the web portion 16 having lines of weakness 10, 11 which are torn, in removing the second member 5 by pulling the gripping ring 15. As the second member 5 is being removed, an incision 13 causes the direction of pull to be altered and when incision 14 has been torn, the second member 5 is displaced from the container and the cover member 1 may then be removed. A portion of the surface of the cover member 1 is coated with a varnish which promotes adhesion of a seal 18 and the inner surface of the second member 5 is covered with a varnish preventing adhesion of the seal 18. The angle between the incision 13 and the axis of symmetry of the cap is less than or equal to 90 degrees.