baber/WOPTO huggingface dataset:
Patent GB-985143-A (GB)
Title: Process for modifying the properties of fibres and films made from polymeric polyesters
IPC: D06P1/651
Filed: 1962-03-26
Abstract: The dyeability of filamentary materials of polyesters, especially to disperse and basic dyes, is enhanced by treating fibres and films made from high-molecular linear polyesters of polyvalent acids and polyvalent alcohols and having a specific viscosity of 0.45-0.65 for a short period at a temperature above 200 DEG C. with a swelling agent for the high-molecular polyesters which does not react chemically therewith.  Specific viscosities are determined in 1% solution in 60 : 40 phenol : tetrachlorethane at 25 DEG C.  The preferred polyesters are derived from dibasic acids containing six-membered carbocycles and from dihydric alcohols.  Specified dibasic acids include terephthalic acid, isophthalic acid and cyclo-hexane-dicarboxylic acid, and specified dihydric alcohols include ethylene glycol, butanediol, propylene glycol and diethylene glycol.  Swelling agents specified include esters, ethers, ketones, and aromatic and hydroaromatic hydrocarbons having from 7-46 carbon atoms, and boiling points above 140 DEG C., and especially sebacic acid dimethyl ester, sebacic acid diethyl ester, sebacic acid dilauryl ester, sebacic acid dioctyl ester, sebacic acid dibenzyl ester, the corresponding esters of azelaic, suberic, phthalic, isophthalic and terephthalic acids and esters of stearic, lauric and benzoic acids, dibutyl terephthalate, benzophenone, b -naphthol-ethyl ether, diphenyl ether, benzoin, benzalacetone, diphenylmethane and a -methyl naphthalene.  Mixtures of these compounds may also be used. Heat-treatment may be effected at temperatures from above 200 DEG C. to not more than 350 DEG C., preferably above 220 DEG C., for periods of 10-4 to 10 seconds, especially 10-2 to 1 sec., and the swelling agents may be made to act in the gaseous state on the polyester materials.  Continuous filaments which have not been heat set may be treated which are allowed to shrink during the treatment.  The swelling agent may be applied to the polyester material in a proportion of 5 to 20% by weight, calculated on the weight of the polyester material, in a pure form or as a solution or emulsion in water or as a solution in a low-boiling organic solvent, e.g. methanol, ethanol, and isopropanol, and their ethers, esters, and ketones, to the polester material, diluent, where used, evaporated at temperatures up to 110 DEG C. and the material, and adhering swelling agent, heated to a temperature above 200 DEG C. for a short period. A disperse dye may be added to the swelling agent, so as to dye the material simultaneously.  In a preferred method, the swelling agent and the dyestuff are first applied to the polyester material in a cold or moderately heated bath and the material then heated to a temperature of above 200 DEG C.  Examples describe the dyeing of polyethylene terephthalate materials with (1) the bromination product of 1, 5-diamino-4, 8-dihydroxyanthraquinone (2), the dyestuff c. 1. 11, 150.  Specification 911,791 also is referred to.
Patent GB-527736-A (GB)
Title: Improvements in the production of gas-expanded rubber material or rubber-like material
Filed: 1939-04-15
Abstract: 527,736. Expanded rubber. EXPANDED RUBBER CO., Ltd., and COOPER, A. April 15, 1939, No. 11511. [Class 70] The process for the production of closed-cell gas-expanded rubber or rubber-like material described in Specification 358,967 is modified by the partially vulcanized and expanded material being heated at 110-120‹C. to expand it almost to the size of the curing mould before it is placed therein for the final heating. The mould is cooled before being opened, to prevent the bursting of the gas cells which might otherwise occur.
Patent GB-545926-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J1/26
Filed: 1941-09-09
Abstract: 545,926. Tungsten or molybdenum alloys. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips'. Gloeilampenfabrieken). Sept. 9, 1941, No. 11557. [Class 82 (i)] [Also in Group XL] For use in an electric discharge tube, an independently heated cathode, which may be made by rolling one or more thin plates until a tubular body is obtained, and may be directly supported in an aperture of a mica or like plate, comprises an outer layer of nickel, copper, or the like on an inner layer consisting of an alloy of tungsten or molybdenum with one or two of the metals nickel, cobalt, and iron, with or without one or more of the elements aluminium, silicon, manganese, magnesium, zirconium, and thorium, the proportion of tungsten or molybdenum being respectively 10-25 and 10-35 atoms per cent. in alloys consisting of two components only and respectively 5-25 and 5-35 atoms per cent. in alloys consisting of more than two components. Specific examples consist of, by weight, (a)' 63 per cent. of nickel and 37 per cent. of tungsten; (b) 75.5 per cent. of nickel 20.5 per cent. of molybdenum, and 4 per cent. of aluminium; (c) 65 per cent. of nickel, 21 per cent. of molybdenum and 14 per cent. of iron; (d) 59.5 per cent. of nickel, 38 per cent. of tungsten and 2.5 per cent. of aluminium.
Patent GB-921238-A (GB)
Title: Improvements in or relating to lubricating compositions
Inventor: ELLIOTT JOHN SCOTCHFORD
Filed: 1960-04-01
Abstract: A synthetic lube oil based on neutral organic carboxylic esters contains, as an antioxidant, one or more alkoxyamines of the formula (R1O)m-Ar-NH-Ar1-(OR11)n where Ar is benzene, Ar1 is benzene or naphthalene (both Ar and Ar1 can have alkyl substituents), R1 and R11 are saturated alkyl and, taken together, contain 8-20 C atoms, m is 1 or 2; and n is zero or 1.  In addition, a water-insoluble polyoxyalkylene glycol ether, a phenothiazine derivative (which may be alkoxy-substituted); heterocyclic metal deactivators, e.g. benzotriazole and the others disclosed in Specification 824,114; and chlorinated di- or poly-phenyls.  Lists of suitable ingredients are given and the esters specified include di esters and complex esters, the latter including hindered esters, e.g. T.M.P. esters.
Patent GB-985175-A (GB)
Title: Amino plastic binders for the production of sand cores
IPC: C08G16/02
Filed: 1961-03-30
Abstract: Compositions for making cores and moulds consist principally of sand and as a binder therefor a liquid aminoplastic resin which is obtained by reacting together urea, formaldehyde and furfuryl alcohol in the mol. ratios of 1-2 to 1-2 to 1-4.  The compositions may also contain an acidic accelerator, e.g. phosphoric acid, sulphuric acid, hydrochloric acid, ammonium phosphate, ammonium chloride, sodium bisulphate or a mixture of sodium bisulphate and glycollic acid.  The urea, formaldehyde and furfuryl alcohol may have been reacted together in the presence of a condensing agent, e.g. diethylenetriamine, an alkali metal hydroxide, ammonium hydroxide or calcium hydroxide.  In the example, the preparation of a binder from urea, formaldehyde, furfuryl alcohol and diethylenetriamine is described.
Patent GB-226479-A (GB)
Title: Improvements in or relating to induction reaction motors
IPC: H02K19/14
Filed: 1924-08-12
Abstract: 226,479. Sangam Electric Co., (Assignees of Holtz, F. C.). Dec. 18, 1923, [Convention date]. Alternating-current motors; cores; conductors. -An induction reaction motor comprises a secondary member having reaction motor characteristics produced by a salient pole effect in which the number of its poles is greater than the number of poles on the primary member, the arrangement being such that at a lower synchronous speed determined by the. reaction motor characteristics, induction motor torque is present but is not sufficient to pull the rotor above this speed. The induction motor torque is, however, sufficient at starting to overcome any tendency to lock. The presence of harmonics in the primary field is also relied on to keep particular synchronous speeds, which speeds are all submultiples of the theoretical induction motor synchronous speed. A general formula of the necessary conditions is given. A construction comprises a shaded bi-polar stator and a rotor having six squirrel cage bars 14 sunk in the iron, which may be laminated. A particular set of dimensions for the rotor and conductor bars is given. The bars may be sunk in open slots, Fig. 4, and they may be offset therein, preferably in the direction of rotation, Fig. 5. A wound solid rotor may be employed.
Patent GB-551005-A (GB)
Title: Dihalo acids
IPC: C07C53/19
Filed: 1941-09-12
Abstract: 551,005. Halogenated acids. WING FOOT CORPORATION. Sept. 12, 1941, No. 11711. Convention date, May 10. [Class 2 (iii)] Dihalogenated aliphatic acids are obtained by halogenating an α-# unsaturated nitrile in an acid medium, hydrolysis of the nitrile group being effected simultaneous with or immediately after the halogenation. Examples describe the chlorination and bromination of acrylonitrile, the acids used being hydrochloric, hydrobromic, sulphuric and phosphoric acids, yielding the dihalogenated propionic acids. It is stated that iodine derivatives may be obtained in a, similar manner. It is stated that halogenated isobutyric, valeric, isovaleric, α-ethyl propionic and caproic acids can be made similarly from the corresponding unsaturated nitriles. Other acids that may be employed for effecting the halogenation are chloric, arsenic and strong organic acids such as chloracetic acid.
Patent GB-207753-A (GB)
Title: Improved screen for cinematograph and other projection purposes
IPC: G03B21/60
Filed: 1923-05-01
Abstract: 207,753. Berry, P. W. May 1, 1923. Projection screens are made of one or more asbestos stone sheets having a polished surface which is coated with white lead. The sheets are made from a mixture of slag, asbestos, and cement, which is rolled when having the consistency of a paste, and the surfaces of the sheets are treated, after drying, with a petrifying liquid.
Patent GB-289075-A (GB)
IPC: C22C37/00
Filed: 1928-04-21
Abstract: 289,075. Molybdenum Corporation of America, (Assignees of Greene, H. L., and Taylor, C.). April 21, 1927, [Convention date]. Alloys.-A cast iron alloy contains about 1-4 per cent of carbon, 0.5-2.5 per cent of silicon, 1-4 per cent of nickel, and up to 1 per cent of molybdenum, without any other intentionally added constituents. Sulphur, phosphorus, and manganese may be present as impurities, and not more than 25 per cent of metals such as chromium. vanadium, and copper may be included if these are constituents of scrap used in making the alloy. Reference has been directed by the Comptroller to Specification 245,916.
Patent GB-1189100-A (GB)
Title: Process for Curing Polyepoxides with Anhydrides and Catalysts therefor
Inventor: DANTE MARK FRANKLIN
IPC: C08G59/42
Filed: 1969-03-06
Abstract: 1,189,100. Curing epoxy resins. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 6 March, 1969 [8 March, 1968], No. 11887/69. Heading C3B. Epoxy resins are cured at elevated temperature by means of a polycarboxylic acid anhydride using as accelerator a phosphonium halide in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are monovalent hydrocarbon radicals and X is a halogen atom. Preferred (I) which may be used at 0À001 to 10% by wt. of the reactants are triphenyl alkyl phosphonium halides, e.g. triphenyl ethyl phosphonium iodide. Curing may take place at 50-200 C.
Patent GB-1450935-A (GB)
Title: Display device
IPC: A47F5/01
Filed: 1973-03-13
Abstract: 1450935 Display devices J & P COATES Ltd and BYAM DESIGN & MFG LTD 12 March 1974 [13 March 1973] 12021/73 Heading A4T A display device, e.g. for articles mounted on cards, comprises a frame having two parallel upright members 1 and cross-bars 4 interconnecting them, and at least one display unit including a bar 5 having hooks 6 for engaging a selected cross-bar 4 and devices 7 for supporting the articles. The bars 4 are supported at their ends by channel bars 9, the bar 5 having projecting ends 5A for engaging flanges 10 of the channel bars 9. A series of bars 5 may be provided, Fig. 4, each with support pins 7, and stringers 8, supporting the bars 5 and defining the hooks 6, may have bent ends 8B for engaging a second cross-bar 4. The device may be supported on a plinth (12), Fig. 5 (not shown), preferably pivotably on axles (13), and illumination (not shown) may be provided for.
Patent GB-698110-A (GB)
Title: Wide-band direct-current repeater
IPC: H04N5/14
Filed: 1952-05-12
Abstract: 698,110. Valve amplifying circuits. HAZELTINE CORPORATION. May 12, 1952 [June 12, 1951], No. 12040/52. Class 40 (vi). In a wide-band amplifier in which the screen of a valve 30, Fig. 1, is fed from the junction of two impedances 38, 39 across the supply, a conductive feedback path 40 is arranged between anode and screen. The circuit is described as applied to a video valve fed from a detector over terminals 35 and directly coupled to the cathode of the C.R.T. of a television receiver and the A.G.C. circuit over terminal 41. In a modification, Fig. 3 (not shown), the screen resistor is connected to a tap on the anode resistor, while the separate screen resistor may be omitted, Fig. 4 (not shown). In a further modification, Fig. 5 (not shown), the screen resistor 38 in Fig. 1 is omitted.
Patent GB-270735-A (GB)
IPC: H01G4/38
Filed: 1927-05-05
Abstract: 270,735. British Thomson-Houston Co., Ltd., (Assignees of Barton, F. C.). May 5, 1926, [Convention date]. Condensers have a plurality of sections made as a unit having one plate 5 common to a. plurality of other plates 3, 4. The plates 3, 4 are separated from one another and a dielectric sheet 6 separates them from the plate 5, the whole being wound on a core 2 of fibre, "Bakelite," or the like and provided with terminals 7 - - 9 for the three plates. Such a condenser may be used in circuits where a connection is brought between two condensers in series.
Patent GB-217390-A (GB)
Title: Improvements in or relating to bakers' or pastry cooks' hot plates
IPC: A21B1/00
Filed: 1923-05-05
Abstract: 217,390. Paulett, H., Jones, W. A., and Owen, R. W. May 5, 1923. Cooking-stoves.-A hot-plate stove, particularly for bakers and pastrycooks, comprises a horizontal chamber the top q of which forms the hotplate, and which is divided into two portions by an horizontal plate k containing a number of openings l controlled by sliding dampers m, individually adjustable from outside the apparatus. The distribution of the gases from the furnace a to the various parts of the hot-plate may thus be controlled.
Patent GB-1379251-A (GB)
Title: Relief valve
IPC: F16K17/34
Filed: 1971-04-29
Abstract: 1379251 Valves JOSEPH LUCAS (INDUSTRIES) Ltd 24 April 1972 [29 April 1971] 12249/71 Heading F2V In a relief valve for a petrol supply system of a road vehicle, when petrol is not being supplied to inlet 11, vapour is allowed to escape to return outlet 12 via restricted passage 17 in piston 15, but when petrol under pressure enters the inlet the piston shifts against spring 26 to abut closure member 22 which prevents flow through passage 17. Excess pressure in the inlet is relieved by further rightward travel of the piston against spring 25 to move radial passage 18 beyond shoulder 19. In the idle position shown, circlip 20 abuts shoulder 21 to limit leftward travel of the piston, and spider 23 abuts shoulder 24 to limit leftward travel of the closure member to leave the latter spaced from the piston.
Patent GB-937394-A (GB)
Title: Improvements in or relating to vehicle headlamps
IPC: F21S8/12
Filed: 1962-03-30
Abstract: 937,394. Vehicle headlamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 30, 1962 [April 4, 1961], No. 12302/62. Classes 39 (2), 75 (2) and 75 (4). A vehicle headlamp having a diameter not greater than 180 mm. comprises a first parabolic reflector 9 having a focal length less than 30 mm., a second parabolic reflector 8 having a focal length less than 75% of that of the first reflector and means for mounting helical filaments 12, 11 substantially at the foci of the reflectors with their longitudinal axes at rightangles to the axes of the reflectors. The axis of the second reflector may be tangential to the cylinder containing the second filament. A third parabolic reflector 10 having a focal length equal to that of the second reflector and provided with a third helical filament similarly mounted may be provided. The reflectors 9, 8 produce an anti-dazzle beam consisting of a concentrated and a dispersed part, and a main beam is produced by the third reflector and the second reflector. The filaments may be enclosed in separate envelopes which may be gasfilled or iodine lamps may be used. Alternatively, the headlamp may be constructed as a sealed beam lamp. The cover glass may have areas 21, 22 in front of the reflectors 8, 10 provided with vertical light spreading ribs. An additional reflector located above the reflectors 8, 10 with a filament of low rating may be provided for a parking light.
Patent GB-1524397-A (GB)
Title: Cassette tape recorders
IPC: G11B15/29
Filed: 1975-12-17
Abstract: 1524397 Tape recorders OLYMPUS OPTICAL CO Ltd 17 Dec 1975 [25 Dec 1974] 12357/77 Divided out of 1524396 Heading G5R A cassette tape recorder, e.g. of the miniature type, includes an operating button 18, Fig. 1. attached to an operating member 76, 103, Figs. 6 and 7, capable of both a pivoting movement (about a pin 123 as shown in Fig. 7) and a longitudinal sliding movement, a switching lever 77, Fig. 6, which turns in response to pivoting movement of the operating member 76, 103 and closes contacts 3 to increase the speed of the tape drive motor 41 and provide rapid tape advance (with cueing if playback was in operation), a switching member 71 which similarly closes the contacts S but in response to sliding movement of the operating member 76, 103 and also transfers the drive from the take-up spindle 5 to the supply spindle 4 in order to provide rapid tape rewind (the pinch roller 12 being withdrawn from the capstan 8 and a review operation being established if playback was in process), and means 125, 126 for retaining the operating member 76, 103 in the tape rewind position reached by sliding followed by pivoting, Fig. 20 (not shown).
Patent GB-273444-A (GB)
Title: Improvements in domestic washing, wringing and mangling machines
IPC: D06F45/18
Filed: 1926-05-14
Abstract: 273,444. Sellers, J. M. May 14, 1926. Driving-gear for mangles, wringers, and washing-machines; pressure and roller-separating arrangements for mangles and wringers. - The lower roller of the mangle or wringer is driven from the shaft 15 either through the train 18, 19, 22 or through the train 18, 20, 21, 22, the pinions 18 - - 21 being carried in a box 16 tiltable about the shaft 15. The pressure-applying springs 27 are carried in frames B<3> pivoted to the mangle flame and held in the operative position by a cam 30. A lever arm 35, Fig. 9, having notches in its undersurface is provided to maintain a lever 18a by which the box 16 is tilted in one or other of its operative positions, or in an intermediate neutral position. The arm 35 is linked to the frames B<3>, so that on the release of the pressure the box 16 is swung to neutral position. The shaft driving the washer, which may be that described in Specification 20412/04 is journaled in the cover of the washer, so that, on the cover being raised, the shaft and the portion of the washer transmission gear carried thereby are disengaged from the main drive shaft.
Patent GB-946682-A (GB)
Title: Continuously variable change speed gear
Inventor: GADELIUS GUSTAV SHIRO
IPC: F16H29/18
Filed: 1960-04-07
Abstract: 946,682. Variable-speed ratchet gear. GADELIUS & CO. A.B. April 7, 1960, No. 12409/60. Headings F2D and F2Q. A continuously-variable friction-ratchet change-speed gear comprises friction pawls 10 guided in a circular track 12 in a driven disc 2 and having studs 11 slidably engaged in radial grooves 16 in a driving disc 1. The driven disc 2 is mounted in a carrier pivotable about an output shaft 7, to which the disc 2 is geared, so that the eccentricity of disc 2 may be adjusted relative to the disc 1 to vary the gear ratio. The friction pawls 10 are rectangular in section with diagonally opposite edges 23, 24 rounded and with flat faces 21, 22 slidable over the side walls 13, 14 of the circular track 12. When the stud 11 is subjected to a force in the direction B, the pawl is tilted anticlockwise and the rounded edges are wedged against the side walls. The flat faces 21, 22 prevent wedging of the pawls when the stud is subjected to a force in the opposite direction. The pawls thus successively grip the track in the zone of the track the greatest distance from the axis of the disc 1 and release the track away from this zone as they move inwards along the radial slots 16 and are subjected to a clockwise moment. The slots 16 are provided in linings in the disc 1 which are mounted for angular movement about radial axes so as to allow the tilting movements of the pawls. Each lining is spring biased to a position close to the locking position for its pawl so that the tilting movement is as small as possible.
Patent GB-180315-A (GB)
Title: Improvements in or relating to the distillation of combustibles
IPC: C10B21/20
Filed: 1922-05-03
Abstract: 180,315. Soc. de Fours Ó Coke et d'Entreprises Industrielles. May 18, 1921, [Convention date]. Retort furnaces. - An apparatus for effecting the distillation of fuel in two stages, at temperatures of, say, 500‹ and 900‹ C. respectively, comprises two groups of retorts which are alternately heated to the required temperatures. The apparatus shown in sectional plan in Fig. 4 comprises two groups of vertical retorts 1 - - 6 and 1<1> - - 6<1> heated by vertical flues fired by gas and air supplied at their lower ends. In one stage of the operation combustion is effected in the flues of the retorts 1 - - 6, and the heating gases drawn off through the flue 14 are passed first through a heat-exchanger 10 and then downwards through the flues of the retorts 1<1> - - 6<1>. In the interchanger 10 the air for combustion is heated, and the heating-gases are correspondingly cooled to the temperature required for the first stage of the distillation process. When the second stage of the process has been completed in the retorts 1 - - 6 and the first stage in the retorts 1<1> - - 6<1>, the beating operation is reversed. If the first stage should be completed in one group of retorts before the second stage in the other the gas supply to the first group may be cut off and the heating of the second group completed by air passed through the flues of the first group.