baber/WOPTO huggingface dataset:
Patent GB-929589-A (GB)
Title: Water-soluble dyes of the anthraquinone or perylene tetracarboxylic acid diimide series
Inventor: WEISSAUER HERMANN
IPC: C09B62/44
Filed: 1961-02-24
Abstract: The invention comprises water-soluble anthraquinone or perylene tetracarboxylic acid diimide dyestuffs containing directly attached to the dye nucleus via a sulphur atom or an amino, sulphonamido or sulphonyl group, at least one b :g -dihydroxypropyl radical esterified in the g -position with sulphuric acid or an organic sulphonic acid.  The dyes are made by esterifying the corresponding dyes containing a b :g -dihydroxypropyl radical with an acylating agent introducing the sulphuric acid or organic sulphonic acid radical, or by reacting the corresponding dyes containing a b :g -epoxy-propyl radical with the stoichiometric amount of sulphuric acid or of an organic sulphonic acid.  Organic sulphonic acids specified are methane-, propane-, butane-, vinyl-, b -chloroethyl-, benzene-, o- and p-chlorobenzene- and p-toluene-sulphonic acids and acylating agents include acid chlorides, bromides and anhydrides of the above, chlorosulphonic acid, potassium hydrogen sulphate, potassium and sodium pyrosulphates and sulphuric acid.  The anthraquinone dyes include those derived from benzanthrone, dibenzanthrone, isodibenzanthrone, pyrazolanthrone and anthrapyrimidine.  The dyestuffs containing b :g -dihydroxypropyl groups may be obtained by reacting a dye containing a sulphinic acid, mercapto or amino group with glycidol or a halo-b :g -dihydroxypropane, or by hydrolysis of the corresponding epoxy derivatives which may be made by reacting the dyestuff amine, mercaptan or sulphinic acid with epihalohydrins or with halohydrins of glycerol and then converting the halohydrin derivatives into epoxides.  The dyes containing b :g -dihydroxy- or -epoxypropyl amino or aminosulphonyl groups can also be made by reacting dyestuff sulphonic acid halides or dyes containing reactive halogen atoms with b :g -dihydroxypropylamines or b :g -diepoxypropylamines. Examples are given.  The dyes dye and print textile materials of wool, silk or linear polyamides and leather from an acid bath, and textile materials of cellulose in conjunction with an alkali treatment.
Patent GB-797868-A (GB)
Title: Hay bale stooker
IPC: A01D85/00
Filed: 1956-10-05
Abstract: 797,868. Sledges. WALKER, R. E. Oct. 5, 1956 [Oct. 5, 1955], No. 30384/56. Class 108(1). A hay bale stooker in the form of a sledge has runners 7 with uprights 10 and transverse bracing 9, 9<SP>1</SP>. To the runners 7, are pivoted at 33, radius arms 28 which carry at their upper ends a movable platform 15 comprising 'transverse members 24, 25 which support rearwardly extending members 19-23. Planks 26, 27 are secured between members 20, 21 and 22, 23 respectively to form three slots which accommodate the lower corners of three bales at the base of a six bale stock. A handle 36 forming an extension of one radius arm 28 enables the platform 15 to be moved rearwardly and downwardly to deposit the stock on the ground and a foot lever 37 is depressed to return the platform 15 to the loading position. A fixed platform and a hand rail may also be provided for an operator.
Patent GB-861218-A (GB)
Title: Process for converting crude perylene-3:4:9:10-tetracarboxylic acid diimide into a commercially useful product
IPC: C09B5/62
Filed: 1957-09-27
Abstract: Plasticized polyvinyl chloride is coloured by a pigment comprising a perylene-3 : 4 : 9 : 10-tetra-carboxylic diimide which has been treated by heating a paste of the finely-divided crude dyestuff in an organic diluent boiling above 120 DEG  C. while distilling off the diluent of the paste which boils at 100 DEG  C. or less and refluxing for some time when the boiling-point of the diluent boiling above 120 DEG  C. is attained.ALSO:Crude perylene-3 : 4 : 9 : 10-tetracarboxylic acid diimide is converted into a commercially useful product by heating a paste of the finely-divided crude dyestuff in an organic diluent having a boiling temperature above 120 DEG C. while distilling off the diluent of the paste which has a boiling point of 100 DEG C. or less, and boiling the mixture for some time when the boiling point of the organic diluent having a boiling temperature above 120 DEG C. is attained.  The starting material may be made by melting naphthalene -1 : 8-dicarboxylic acid imide, acenaphthenequinone monoxime or dioxime with caustic potash or by condensing perylene-3 : 4 : 9 : 10-tetracarboxylic acid or anhydride with aqueous or liquid ammonia, and dissolving the crude dye in concentrated sulphuric acid or chlorosulphonic acid and reprecipitating it by pouring on to ice or into cold methanol, or grinding the crude dye with a soluble grinding agent. Specification 379,532 is referred to.
Patent GB-305147-A (GB)
Abstract: 305,147. Dreyfus, H. July 30, 1927. Grant of Patent opposed. Acetic and other aliphatic anhydrides are produced by passing the vapour of the acids through a heated reaction zone made of, or lined with, reducible metals or their alloys (i.e. metals whose oxides or salts are easily reducible by hydrogen or other reducing gases) such as copper, nickel, iron, cobalt, and bronze, metals whose acetates yield acetic acid on heating (such as nickel or copper) being particularly suitable; hydrogen, coal-gas, producer-gas, carbon monoxide or like reducing gas, being passed through the apparatus continuously or intermittently during and/or before the passage of the acid vapour. Preferably the reducing gas is passed through the apparatus, during the heating-up and during the cooling when the process is finished. The reaction may be effected at 200‹-1200‹ C., and preferably 500‹-700‹ C., and dilute acid may be employed. The anhydride may be separated in any suitable way, for instance by fractional condensation,. or by passing through a solvent of higher boiling- point than water and preferably higher than the anhydride, such as chlorbenzenes, benzyl ether,. tetrachlorethane, acetins, paracresyl acetate, phenetol, paraffin oil, or mixtures of such bodies, the anhydride condensing while the water vapour escapes; or by means of an "entraining liquid" as described in Specification 303,772, toluene, xylene, or other liquids boiling between the boiling points of the anhydrides and water; or by passing through an " extraction liquid " as described in Specification 298,667; or by means of water-binding agents as described in Specification 289,972. In an example, a copper reaction tube or apparatus is used heated to 500‹-700‹ C., a stream of hydrogen being passed through during the heating-up, after which hydrogen and acetic acid vapour are passed through, the products being treated by fractional condensation. On starting or re-starting the process it is preferable to first pass a stream of dilute nitric acid through the apparatus; followed by a stream of water, and then steam, after which the heating- up is effected as described above.
Patent GB-608871-A (GB)
Title: Improvements in resilient couplings, particularly for transmitting heavy loads or loads subject to very great variations
IPC: F16D3/58
Filed: 1945-11-15
Abstract: 608,871. Resilient couplings. PAULSEN, J. F. Nov. 15, 1945, No. 30564. Convention date, Aug. 5, 1943. [Class 80 (ii)] [Also in Group XXXII] To provide a yielding torque-transmitting coupling with a rising stiffnessdeflection characteristic, load-transmitting resilient (e.g. rubber) blocks 8, arranged between coupled shaft-members 3, 6, are of tapering cross-section, with their large end-faces 10 arranged in the plane of the load applied to (or from) one member 3, whilst recesses 11 in their small ends are engaged by projections 7 on the other member 6. Under small loads the rubber blocks 8 thus deflect in shear, whilst heavier loads bring the tapered sides of the blocks into increasing contact with radial or axial walls 4, normal to the member 3, whereafter the rubber is also compressed and the stiffness considerably increased. Adhering to the base and recess of the rubber blocks are metal liners 10, 11 and the former may be bolted or riveted to, or rest on the member 3. Fig. 3 (not shown) uses two sets of rubber blocks, with their small recessed ends adjacent and engaging a common radial projection on one member whilst their larger end-faces engage a pair of axially-spaced parallel faces on the other member. The rubber blocks 8 and projections 7 may be axial, as shown, or radial, the base 10 being circumferentially curved or flat in the latter case. With the axial taper shown, the side faces are also tapered radially to correspond with the radial faces of the walls 4. The Specification as open to inspection under Sect. 91 includes also the subject-matter of Specification 613,432 which does not appear in the Specification as accepted.
Patent GB-1432205-A (GB)
Title: Remote-control switching circuits
IPC: H02J13/00
Filed: 1973-06-27
Abstract: 1432205 Remote control receivers COMPTEURS SCHLUMBERGER 27 June 1973 [30 June 1972] 30691/73 Heading G4H In a remote control receiver adapted to be controlled by a pulse train comprising a start pulse and at least two further pulses forming part of a set of possible pulses, the pulses are gated 5 to a decoder 25 by clock pulses from a generator 7 started by the start pulse, the decoder 25 also being fed with the count of a counter 8 driven by the clock pulses, a preselection circuit responding to the decoder 25 and the counter 8 to disable 32 the decoder if a predetermined preselection pulse is not present in a temporally first group of the set of possible pulses. As disclosed, the pulses are frequency pulses superimposed on power lines 1, 2 and are demodulated at 3. The start pulse sets a bistable 4 to start generator 7 to gate the subsequent pulses at 5 via a bi-stable 22 to decoder 25 on line 24, the decoder being enabled on line 33 by a bi-stable 19 set from bi-stable 4. If the preselection pulse corresponding to this class of receiver is present, a gate 27 is enabled by it at 23 and a timed output 28 of decoder 25 to reset a bi-stable 17 (set from bi-stable 4) thereby blocking a gate 31 to prevent counter 8 resetting the decoder-enable bi-stable 19. If the preselection pulse is not present, on the other hand, bi-stable 19 is reset and decoder 25 is prevented from responding to the subsequent pulse(s) of the pulse train which would otherwise be recognized by decoder 25 is conjunction with the count from counter 8 to energize control outputs 34. Figs. 2, 3 (not shown) show a slightly modified embodiment in more detail, including a diode matrix in the decoder 25.
Patent GB-335397-A (GB)
Title: Improvements in driving mechanism for reciprocating conveyors
IPC: B65G27/26
Filed: 1929-10-10
Abstract: 335,397. Zimmer, G. F. Oct. 10, 1929. Jigging conveyers. -In a jigging conveyer of the kind supported on resilient inclined legs 2, the trough &c. is connected by a flexible coupling to an eccentrically disposed crank pin 5 on a floating flywheel 4 carried in the bight of a belt 6 driven by an overhead pulley 7. A block 9 mounted on each end of the pin 5 engages a pair of horn plates 10 secured to an extension 11 of the conveyer 1. The flywheel has a heavy rim 4a and a heavy boss 4<b>, Fig. 5, in which a number of apertures 13 of various eccentricities are formed to receive the pin 5. In a modification the flywheel 4, Fig. 3, is actuated by an underdriven belt 6 and is supported resiliently by springs 15, or by connecting the blocks 9 to a counterweight by means of a chain led over guide pulleys. Excessive or irregular oscillation at starting or stopping is prevented by connecting the part 11 by a rod 22 to the plunger of a dashpot 17 which is pivoted in a bearing 19 and provided with a circulating pipe 20 controlled by a valve 21.
Patent GB-844448-A (GB)
Title: Reductive aminolysis process
Inventor: HASS HENRY BOHN
IPC: C07D295/02
Filed: 1956-10-09
Abstract: Ethylene diamines and heterocyclic nitrogen compounds are obtained by subjecting materials containing polyhydric alcohols to reductive aminolysis, by reacting them with hydrogen and ammonia or a primary or secondary amine, or a compound yielding the same under the reaction conditions, in the presence of a hydrogenation catalyst at 150-300 DEG C. and under a pressure of 750-15,000 p.s.i., at least 3 mols of the nitrogenous reactant being present for each 100 grams of polyhydric alcohol, and the hydrogenation catalyst being present in sufficient quantity to provide an initial rate of hydrogen absorption of at least one mole of hydrogen per hour per kilogram of polyhydric alcohol.  Suitable polyhydric alcohols are mono-, di-and poly-saccharides, glycols, glycerol, erythritol, sorbitol and mannitol; crude and impure forms of these alcohols may be used, such as corn syrup, hydrol syrup, citrus molasses, sugar molasses, invert sugar solutions; finely divided potato, corn and other grains; sugar cane bagasse, bagasse pith, sugar beet pulp; corn stalks, corn cobs, straw, oat hulls and cottonseed hulls; hemicelluloses, lignins, bark and sawdust.  Suitable amines include aliphatic amines, alkanolamines, polybasic amines, aralkylamines, cyclic amines, and aromatic amines.  Compounds which produce amines under the reaction conditions include nitriles and amides.  The products are piperazine and substituted piperazines and ethyl-enediamine and N-substituted ethylene diamines, with ethanolamine, dimethyl ethanolamine and 2-aminopropanol specified as by-products.  Specification 449,474 is referred to.
Patent GB-828196-A (GB)
Title: Improvements in and relating to the cooling of electric circuit breakers
Inventor: LOVE KENNETH GEORGE
IPC: H01H9/52
Filed: 1955-10-27
Abstract: 828,196. High-tension switches. ENGLISH ELECTRIC CO. Ltd. Oct. 22, 1956 [Oct. 27, 1955], No. 30748/55. Class 38 (5). The metal oil reservoir 11 of a low oil-volume circuitbreaker has its outer cooling surfaces protected from the direct heat of the sun by shields 14, 15 spaced away therefrom so that air may pass between by connection. The cooling surfaces may be provided with fins 13 some of which have projections 13a on which the shield 14 is mounted. The two shields 14, 15 may be replaced by a single shield having a central aperture in the top to allow the air to escape (Fig. 2, not shown).
Patent GB-698633-A (GB)
Title: Improvements relating to containers for powders
IPC: B65D47/06
Filed: 1950-12-18
Abstract: 698,633. Powder distributers. UNIVERSAL METAL PRODUCTS, Ltd., and BIDDULPH, M. Dec. 10, 1951 [Dec. 18, 1950], No. 30749/50. Class 18 A powder distributer has a number of holes 5 on one side of the lid for sprinkling and a single large hole 6 on the other side for pouring.
Patent GB-1165108-A (GB)
Title: Seat, for a Motor Vehicle
IPC: B60N2/20
Filed: 1968-06-27
Abstract: 1,165,108. Seats. FRITZ KEIPER. 27 June, 1968 [28 June, 1967], No. 30772/68. Heading A4J. A lock, for retaining the forwardly foldable backrest of a vehicle seat in the upright position, includes two hooks 19, engaging projections (32) and operated by a separately detachable assembly, having dog members (20) and an operating handle (22), fixed at the ends of a transverse tube (21). The handle (22) may be an integral extension of one dog member (20), which has a fork 26 to receive a part 19 of the corresponding hook. A return spring 28 is provided.
Patent GB-934758-A (GB)
Title: Improvements relating to the determination of the activity of oxygen or the activities of other ionic species in molten materials
Inventor: SHARP JOHN DAVID
IPC: G01N27/411
Filed: 1960-09-07
Abstract: 934,758. Determining relative quantities of fluid mixture constituents. UNITED STEEL CO. Ltd. Dec. 7, 1961 [Sept. 7, 1960], No. 30846/60. Class 37. The activity coefficient of an ionic species (oxygen) in a molten metallic mass is determined by measuring the potential difference between an electrode and the molten mass, the electrode being isolated from the molten mass by a sheath that is dipped into the molten mass and which is permeable only to the ionic species (zirconia in the case of oxygen), and being maintamed at a fixed reference potential by maintaining within the sheath a constant known activity of the species the activity coefficient of which is being determined. The electrode is of a metal (molten silver, platinum, or rubidium, in the solid state) in which the species is soluble and the standard potential is maintained by circulating within the sheath a gas which dissociates into the ionic species. The molten mass is contacted also by a geometrically similar sheath of substantially the same thermal capacity which comprises a cermet of molybdenum and aluminium, the voltage between this contact sheath and the electrode in the other sheath being measured by a valve voltometer to indicate the electrolytic potential developed across the wall of the zirconia sheath by any difference between the activity of the species on each side of the wall. The contact electrode is purged with an inert gas such as argon to remove the ionic species being determined. A molten silver electrode 5, Fig. 2, has oxygen bubbled through at a known pressure by a silicon tube 13 dipping into it. A platinum meter lead 14 is provided and a mild steel pipe 9 supporting the housing is protected by graphite sleeves 8. In a modification described with reference to Fig. 3 (not shown), the sheaths are lined with solid platinum and contact is made by spirals of platinum wire. Some water cooling is applied to the housing. In a further modification, the molten silver is in direct contact with the molten electrolyte. Sheaths of silicon nitride and cerium sulphide for determining the nitrogen and sulphur activity in copper are also described.
Patent GB-267206-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/14
Filed: 1925-12-07
Abstract: 267.206. Keenteyside, H. J. Dec. 7. 1925. Tobacco pipes. - A moisture trap is formed by a tubular T-piece A connecting the stem and mouthpiece, the downward branch D being closed bv a cap E containing a wad of paper or other absorbent material.
Patent GB-602066-A (GB)
Title: Improved method of and means for crescenting tubes
IPC: B23D21/02
Filed: 1945-11-19
Abstract: 602,066. Shearing ; ; punches. COX & CO. (WATFORD), Ltd., and ORTON, W. T. Nov. 19, 1945, No. 30977: [Class 83 (iv)] In a machine for crescenting the ends of tubes, a mandrel b secured on a rod a carries a-crescent-shaped recess with which a shearing tool e co-operates. The tube to be sheared is mounted on the mandrel b and the tool e is guided in a member c. The work may be positioned by a collar g slidable on the rod a by a hand lever and serving also as an ejector. One face of the collar may be shaped to fit a previously crescented tube end. The tube may be positioned between the crescented mandrel b and the rod a.
Patent GB-428079-A (GB)
Title: Improvements in and relating to sealing devices for electric cable ends
IPC: G02B15/02
Filed: 1933-11-07
Abstract: 428,079. Cable-end sleeves. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl- Ufer, Berlin) Nov. 7, 1933, No. 30979. Convention date, Nov. 7, 1932. [Class 36] A cable-end sleeve comprises an elastic tube 3 fitted over the tapered insulation 2 of the cable end and having its ends secured to ferrules 5, 6 which are each provided with a deformable flange over which the end of the tube is folded and within which it is subsequently secured by pressing. The ferrules 5, 6 are secured respectively to the cable sheath 9 and cable end 10, preferably with the interposition of sockets 7, 8 which are soldered to the ferrules. The tube 3, which may have thickened or beaded ends 4 for engagement by the ferrules, may be of oilresisting elastic material, such as polymers of acrylic acid or its derivatives, or polyvinyl compounds, or the tube may be of rubber and provided with a coating of oil - resting material. The tube 3 is protected against internal oil pressure by sheath 11 which may be reinforced by a braiding 12 and which may be spaced from the tube 3 to allow for expansion of the cable impregnating compound. The socket 8 or ferrule 6 may form a protection against corona.
Patent GB-619553-A (GB)
Title: Improved light-sensitive photographic elements
IPC: G03C1/04
Filed: 1946-10-21
Abstract: Hydrophilic polycarbonamides having recurring amide groups of the structure <FORM:0619553/IV(a)/1> wherein X is a carbonyl or sulphonal radical, M is a cation and R a divalent saturated aliphatic hydrocarbon radical are prepared by reacting polycarbonamides of the type described in Specifications 461,236 and 461,237 with formaldehyde or a formaldehyde yielding material and a hydroxyalkane carboxylic acid or a monohydric alcohol ester thereof in the presence of an oxygen containing catalyst and, if necessary, neutralizing the product with a base. Numerous methods for such preparation are described.  As a preferred example, polyhexamethylenesebacamide is treated with formaldehyde and methylhydroxyacetate to give the N-substituted derivative designated as N-carbomethoxymethoxymethyl polyhexamethylene-sebacamide, which is insoluble in water, but on hydrolysis can give the sodium or potassium salt of N-carboxymethoxymethyl polyhexamethylene sebacamide.  These alkali salts are used in place of gelatin to form photographic layers. Specifications 458,400, 465,823, [both in Group XX], 488,048 and 538,100 also are referred to.
Patent GB-999804-A (GB)
Title: Process for the separation of a mixture by means of liquid-liquid extraction
IPC: C10G21/00
Filed: 1962-08-14
Abstract: In the separation of a mixture of hydrocarbons, in which the less soluble materials (raffinate) are more volatile than water, e.g. the separation of aromatics from non-aromatics, by solvent extraction with a water-miscible solvent boiling higher than the hydrocarbons, the raffinate is washed with an aqueous medium at least a portion of which is thereafter introduced into the fractionating solumn in which any less-soluble materials are removed from the extract prior to stripping the aromatics, such less-soluble materials preferably being returned as reflux to the extraction.  In a modification, the water is at least partially freed by stripping of less readily soluble hydrocarbons and is then introduced, preferably in the vapour phase, into the solvent stripper.  A combination of the two embodiments may be used.  The use of sulpholane and glycol type solvents is referred to for separating aromatics from reformates, cracked gasolines and coal products.  Specifications 625,505, 659,241 and 764,650 are referred to.
Patent GB-825049-A (GB)
Title: Improvements in or relating to electric heating elements
IPC: H05B3/68
Filed: 1955-11-02
Abstract: 825,049. Sheathed heating resistors for cookers. LACY-HULBERT, C. Nov. 2, 1955, No. 31278/55. Class 39(3) In electric heaters for use on cooking ranges in which resistance wires prefer- . ably coiled are embedded in compacted insulating material in a metal tube or the like forming a sheath which is flattened on one side and shaped to receive a cooking vessel and is open at both ends with terminals at both ends, a wire of nickel or like material having a high temperature coefficient of resistance is connected in series or parallel with the heating wire in order to enable the heater to heat up quickly, or the resistance wire or wires themselves are of nickel or nickel alloy. As shown, two resistance wires are connected together at one end, which is connected to a nickel wire 14, so that the two resistance wires may be connected in series with or without the wire 14; or the wire 14 may be connected in series with either wire 13 singly or with the wires 13 in parallel. The wires 13 may be of equal or unequal resistance, and the insulating material may be magnesium oxide. A resistance wire may be connected in parallel with a wire comprising a nickel wire and a resistance wire in series. Specifications 734,053, 774,931 and 782,276 are referred to.