baber/WOPTO huggingface dataset:
Patent GB-868820-A (GB)
Title: Method and apparatus for preventing corrosion in an electrolytic system
IPC: C23F13/02
Filed: 1957-10-14
Abstract: 868,820. Preventing corrosion. SABINS, R. C. Oct. 14, 1957, No. 20169/59. Divided out of 868,810. Class 123(1). To provide more uniform potential over the surface of a cathode in an electrolytic corrosion prevention system comprising a cathode 12 and an anode 13 immersed in an electrolyte, a series resistor 31 is inserted in the external circuit having a value in excess of the internal resistance of the cell so formed. The e.m.f. of the circuit may be generated by suitable disposition of the anode and cathode in the electro-chemical series or by a separate source such as a generator or rectifier. In 'the latter case a further electrode may be connected externally to the cathode to function as anode if the source becomes disconnected, which electrode may also be cathodic to the anode. The electrode may additionally be of sacrificial metal. The system may be used to generate a poisonous substance by suitable choice of anode material. An anode unit suitable for mounting on a ship or barge and incorporating a series resistor is described. in the Specification.
Patent GB-851537-A (GB)
Title: New monoazodyestuffs derived from cyanuric halides, their application and production
IPC: C09B62/08
Filed: 1957-06-26
Abstract: The invention comprises dyes obtainable by coupling a diazotised amine of formula:-  <FORM:0851537/IV (c)/1> where D is a benzene residue that at the most is bicyclic, with a naphthol sulphonic acid coupling in a position vicinal to the OH group, the products having at least two groups selected from carboxylic and sulphonic acid groups.  The dyes may also be made by condensing appropriate aminodyes and cyanuric halides. Preferred coupling components contain an amino, especially an acylamino, group.  Halogen is preferably chlorine.  Examples of specified components corresponding to D are 4, 41-diaminodiphenyl -3- sulphonic acid, 4, 41- diaminostilbene -2, 21-disulphonic acid, 4-(41-aminobenzoylamino)-1-aminobenzene -2- sulphonic acid and 2-methoxy -1, 4- diaminobenzene -5- sulphonic acid. Illustrative of specified coupling components are 1- and 2- naphthol -5- sulphonic acids, 1, 8-dihydroxynaphthalene -3, 6- disulphonic acid and 2-amino -6- naphthol -8-, 2- phenylamino -5-naphthol -7-, 2- methylamino -8- naphthol -6-and 1- amino -8- naphthol -2, 4- disulphonic acids.  Examples of acyl groups of acylaminonaphthol sulphonic acid coupling components are acetyl, b -chloropropionyl, #schloro- and nitro-benzoyl, ethanesulphonyl, p-toluenesulphonyl, carbomethoxy and groups derived from cyanuric acid.  The dyes colour cellulosic materials from aqueous alkaline baths and may be used in printing pastes which need developing with an alkali.  Numerous examples are given of the preparation of the dyes and their use in dyeing cellulosic fibres in red, blue and yellow shades.  Specification 797,946 is referred to.
Patent GB-266995-A (GB)
Title: Hydraulic pump protector for hydraulic jacks and jim crows
IPC: B66F3/42
Filed: 1926-08-18
Abstract: 266,995. Stack, J. C. Aug. 18, 1926. Jacks.-To prevent injury to the pump cylinder of a hydraulic jack, the cylinder is enclosed in a protective casing. The pump cylinder 3 for actuating the ram 1 of a hydraulic jack is surrounded by a casing 7 secured in position by set-screws 8. The handle 9 actuates the pump by means of an arm 4 engaging a slotted enlargement 10 on the pump rod 5. The casing 7 prevents injury to the pump cylinder through the lower part of the slotted enlargement striking the cylinder at the bottom of its stroke.
Patent GB-835664-A (GB)
Title: Improvements in the production of condensation products
Inventor: CHRISTMANN FRITZ
IPC: C07B37/00
Filed: 1958-06-25
Abstract: Aromatic compounds with a long-chain alkyl group and which may contain an alcohol, ester or acid group in the side chain and/or a phenolic group or ether thereof in the nucleus are prepared by condensing an aliphatic unsaturated and/or halogen-containing compound having at least six carbon atoms with an aromatic compound in the presence of a condensing agent, which is decomposed by water or low-boiling alcohols, adding to the reaction product, still containing the condensing agent, 0.1-10% by weight of the aliphatic unsaturated or halogen compound or a C1-C4 alcohol, removing solids and distilling the liquid product.  A liquid hydrocarbon or halogenohydrocarbon diluent may be used.  The long-chain aliphatic compound preferably contains 8-25 carbon atoms per molecule; mixtures may be used. Unsaturated compounds may be mono- or poly-olefinic, halogen compounds may contain one or more halogen atoms.  Suitable compounds are paraffinic oils, paraffin waxes, alcohols, esters, or high molecular weight acids.  Preferred is a chlorinated paraffin wax containing 10-18% by weight of chlorine.  The aromatic compound may be mono- or polynuclear, e.g. benzene, xylene, naphthalene, anthracene, phenanthrene, fluorene, phenol, cresol, naphthol or phenolalkyl ethers.  The mol. ratio of aliphatic to aromatic compound should be at least 1.5, e.g. 2.5 : 1.  Suitable condensing agents are the Friedel-Crafts catalysts, particularly such metal halides as the chlorides of aluminium, zinc, iron, or titanium, aluminium alkyl chlorides, boron fluoride and aluminium activated with hydrochloric acid and, if desired, with added halogen, hydrogen halide or readily fissible halogen compounds.  A temperature of 20-100 DEG  C. may be used.  Suitable diluents include ethylene chloride, methylene chloride, ethylidene chloride, carbon tetrachloride, chlorobenzene, gasoline, kerosine or reduction products of carbon monoxide.  There may also be added, after adding the water, an adsorption agent such as bleaching earth, bentonite or synthetic silicates and a neutralizing agent such as lime or zinc oxide with stirring and heating to 200-300 DEG  C.
Patent GB-535649-A (GB)
Title: Improvements in or relating to the treatment of coal to improve its combustibility
IPC: C10L9/10
Filed: 1939-07-13
Abstract: 535.649. Composition fuel. STILLMAN, A. L. July 13, 1939. No. 20382. [Class 50] Lime is added to coal which is in powdered form or in a colloidal suspension and which contains iron and sulphur, but insufficient lime to combine with the sulphur, so that sufficient lime is present when the coal is burned to oombine with the whole of the sulphur. The lime is preferably added before grinding. A phosphate may also be added to improve the combustion. When operating a slag bottom furnace calcium sulphide is formed which solidifies easily and does not cause corrosion.
Patent GB-772965-A (GB)
Title: Shifting registers
IPC: G11C19/12
Filed: 1955-07-14
Abstract: 772,965. Pattern-movement stepping registers. NATIONAL CASH REGISTER CO. July 14, 1955 [Sept. 28, 1954], No. 20403/55. Class 106 (1). [Also in Group XXXIX]  In a shifting register comprising a series of electric bistable trigger elements, the input circuits of the first element being adapted to receive entry pulses and the input circuits of the remaining elements being coupled one to each output circuit of the immediately preceding element, the latter input circuits are further coupled to a source of shift pulses through an associated non-linear resistor forming a gating device. The stages A1, A2, A3 of the shifting register shown in Fig. 1 each comprise a ferroresonant flip-flop circuit comprising two conductive paths connected through a capacitor such as C3 to A.C. supply line 1. Paths Pa, Pb of stage A1 comprise respectively inductors L1, L2 having windings 5, 6 on cores 7, 8, and capacitors C1, C2. The reactance of C3 is such that only one of the paths is in a highly conductive condition, this condition being switched to the other path by binary-digit-representing D.C. trigger pulses applied from terminal 18 via non- linear resistors 15, 16 to trigger windings 9, 10 shunted by " memory " capacitors C4, C5. The trigger windings are cross-connected by leads 11, 12 to the opposite conduction paths, whereby if, e.g., Pa is highly conductive, a high A.C. voltage is applied to resistor 16, but not 15, so that the next trigger pulse is gated to winding 10 to render Pb highly conductive. Stages A2 and A3 are similar but are triggered by D.C. shift pulses on lead 25 in accordance with the condition of the preceding stages, the triggering input circuits, including non-linear resistors 22, 23 and 29, 30, being connected to output leads 13, 14 and 31, 32 of A1 and A2 respectively. When a stage is in the " 1 " condition (high current in Pb, Pb<SP>1</SP> or Pb<SP>11</SP>) a lamp such as 26 is lit. The stages may be connected in a ring, the outputs, e.g., of stage A3 being connected to the trigger input circuits of A1, and terminal 18 to lead 25; digital data may then be entered by manually operable switches. Fig. 3 illustrates the gating operation of a non-linear resistor in which current is proportional to a power of the applied voltage. A D.C. pulse, indicated by S, biases an applied A.C. voltage whereby the resistor can pass a substantial current; since the resistor is symmetrical, the polarity of the D.C. pulse is immaterial. As the trigger windings do not respond rapidly to increased current, the memory capacitors provide temporary storage for the trigger or shift pulses.
Patent GB-148483-A (GB)
Title: Improvements in and relating to dispensing pumps
IPC: G01P13/00
Filed: 1920-07-10
Abstract: 148,483. Hatmaker, W. T. March 16, 1918, [Convention date]. Multiple-indication apparatus; indicating 'duration of flow of liquids.-A pump for dispensing gasolene &c. has a delivery pipe 10 on which is mounted a chamber 9 provided with a transparent portion 12 so that it may be seen whether or not the delivery pipe is full before starting the pump. The chamber 9 may have an annular sediment trap at the bottom and a strainer 15, which may be removed by detaching the cap 20 carrying the delivery spout. A vane 19 may be mounted in the transparent chamber 12 to indicate the flow of liquid. The chamber 12 is protected by two telescopic sleeves 13, 14. The amount delivered may be indicated by means of an index-arm 33 movable over a scale 28 by means of a rack 36 reciprocated by the pump - actuating mechanism and engaging a lever 40 carrying a pawl which actuates a ratchet on the spindle of the pointer. Another removable scale 29 representing different prices per gallon co-operates with a radially adjustable pointer 34 on the arm 33 to indicate the price of the quantity delivered.
Patent GB-1029132-A (GB)
Title: Improvements in the production of crystals from solutions
Inventor: BAMFORTH ALFRED WILLIAM
IPC: B01D9/00
Filed: 1962-05-29
Abstract: Crystal growth is effected by contacting a supersaturated solution derived from a feed liquor and recycled mother liquor with a suspension of growing crystals in an aqueous solution. The supersaturated solution has a supersaturation of less than 0.5 gm. of solute per 100 gm. of solvent.  The difference in concentration of the feed and mother liquors is maintained below a predetermined value (12 gm./100 gm. water for adipic acid and 2.5 gm./100 gm. water for benzoic acid).  A portion of the mother liquor may be fed to a similar subsequent crystallization stage. The supersaturated solution may be obtained by passing a mixture of feed and a portion of the mother liquor to an evaporator (Fig. 2, not shown) or may be formed in the crystallizer itself from supersaturated feed and mother liquor (Fig. 4, not shown).ALSO:Crystal growth is effected by contacting a supersaturated solution derived from a feed liquor and recycled mother liquor with a suspension of growing crystals in an aqueous solution.  The supersaturated solution has a supersaturation of less than 0.5 gm of solute per 100 gm of solvent.  The difference in concentration of the feed and mother liquors is maintained below a predetermined value (12 gm/100 gm water for adipic acid and 2.5 gm/100 gm water for benzoic acid).  A portion of the mother liquor may be fed to a similar subsequent crystallization stage.  The supersaturated solution may be obtained by passing a mixture of feed and a portion of the mother liquor to an evaporator (Fig. 2, not shown) or may be formed in the crystallizer itself from supersaturated feed and mother liquor (Fig. 4, not shown).
Patent GB-208493-A (GB)
Title: Improvements in signal rockets
IPC: F42B12/68
Filed: 1923-08-13
Abstract: 208,493. Hansen, H. P. Aug. 13, 1923. Pyrotechnic devices. - The stick of a signal rocket a, Fig. 1, is made in telescopic sections b', b<2>, b<3> ; and the extension of these sections is facilitated, when the rocket is discharged, by means of a tip of lead d at the free end of the rearmost section. The rocket with the stick in collapsed position occupies, a small space and may be stored in a case g, Fig. 2, provided with a closure cap at both ends, the upper cap h being formed with a pointed head i to indicate the position of the head of the rocket in the case.
Patent GB-257281-A (GB)
Title: Apparatus for producing an adjustable preliminary tension with rectified direction in the auxiliary electrode of roentgen tubes with intermediate electrodes
IPC: H05G1/68
Filed: 1926-08-20
Abstract: 257,281. Liebermann, M., (trading as Mutler, C. H. F. [Firm of]). (Assignee of Raffler, F. R. von). Aug. 21, 1925, [Convention date]. R÷ntgen-ray tubes.-An adjustable potential applied to an auxiliary electrode of a Rontgenray tube is supplied by a transformer and rectified by a thermionic valve. As shown in Fig. 1, the auxiliary electrode 1 consists of a metal shell surrounding the filament 3, and connected with the filament 5 of the valve. The filaments are connected with secondary windings 9, 10 respectively of a transformer. The secondary 12 of a transformer is connected with the anode 7 and through a condenser 14 shunted by a resistance 15 with the filament 5, a direct connection being also made with the filament 3. In a modification the winding 10 is mounted on the same transformer as the secondary 12, and is connected in series with an iron-wire resistance compensating for variations in the supply voltage. In the arrangement shown in Fig. 2 for ensuring that the time of maximum potential on the auxiliary electrode 19 coincides with that of the anode 17, the valve is provided with two anodes 22 connected with a secondary winding 12<a>, the midpoint of which is connected with the filament 18. A condenser 14a is connected between the electrode 19 and the filament 18. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the application to discharge tubes generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-148808-A (GB)
Title: Improvements in or relating to the manufacture of artificial teeth
IPC: A61C13/10
Filed: 1920-07-10
Abstract: 148,808. Bronstein, S. March 22, 1919, [Convention date]. Teeth, artificial. - Porcelain tooth facings are formed with cavities at the back to accommodate pins or other projections which are cast in one piece with the metal backing-plates, bridges, crowns, or other supports. Fig. 1 shows a facing a secured by cement to a backing b cast with pins or projections d, Fig. 2. Modified forms of projection are shown in Figs. 3 and 4. In manufacture, the wax model h of the backing &c. is made with the tooth in place and core pins g having reduced, roughened or threaded ends g<1> are inserted to carry the wax. into the tooth cavities so as to obtain, an exact model thereof. The projecting ends of the pins g serve as handles for the wax models and also to form pouring- channels in the mould. Several backing plates, crowns &c. may be cast together in a block. The facings may be standardized so as to be replaceable.
Patent GB-1061410-A (GB)
Title: Anthraquinone derivatives
Inventor: BUCHELER PAUL
IPC: C09B1/58
Filed: 1964-05-19
Abstract: 1,5 - Diamino - 4,8 - dihydroxyanthraquinones having at least one thiol or thioether group in a b -position and at least one substituted or unsubstituted aryl radical in another b -position, and which are free from carboxylic and sulphonic groups are prepared by reacting a b -aryl, 15-diamino-4,8-dihydroxyanthraquinone b -sulphonic acid with hydrogen sulphide or its derivatives, e.g. sodium sulphide or a mercaptan. The reaction with sodium sulphide is best carried out in aqueous solution at the boil with the addition of alkali, and gives a thiol compound which may be converted to a thioether using alkylating or arylating compounds having a reaction halogen atom, using diethyl or dimethyl sulphate or using compounds having a reactive double linkage, e.g. acrylic or methacrylic acid derivatives.  The reactants may be reacted in an organic solvent, e.g. chlorobenzene, di- or thrichloro-benzene or nitrobenzene at temperatures of 100-180 DEG  C.  The preferred compounds have formula <FORM:1061410/C4-C5/1> in which R1, R3 and R4 are hydrogen or hydrocarbon radicals which may be substituted and R2 is a substituted or unsubstiIuted aryl radical. Preferably, R2 is a phenyl or naphthyl radical having a hydroxyl group which may be etherified, R4 is alkyl of 1-4 carbon atoms, one o both of R1 and R3 are hydrogen, the other being low alkyl of 1-4 carbon atoms.  The dyes give blue shades on hydrophobic materials.ALSO:Hydrophobic high molecular materials are dyed with disperse dyes of formula:  <FORM:1061410/D1-D2/1> in which R1 R3 and R4 are hydrogen or hydrocarbon radicals which may be substituted and R2 is a substituted or unsubstituted aryl radical. Preferably R2 is a phenyl or naphthyl radical, one of R1 and R3 is hydrogen, the other being hydrogen or low alkyl 1-4 carbon atoms, and R4 is an alkyl radical of 1-4 carbon atoms or an aryl radical.  The above substituents do not contain water soluble groups, and preferably the phenyl or naphthyl radical R2 is substituted by a hydroxyl group which may be etherified.  Fibres referred to are polyamides, polyesters and cellulose esters.
Patent GB-207484-A (GB)
Abstract: 207,484. Baron, H., (Aldendorff, F.). July 17, 1922. Relays with magnets acting on two armatures, one of which is designed to respond more quickly than the other, have a light armature 5 situated in the strongest part of the magnetic field and a heavier armature 3 in a weaker part of the field. Both armatures are pivoted on a knife-edge 4 whilst a spacing member 7 provided with lugs 6 projecting between the armatures to prevent their sticking, is secured to the light armature by a screw 8 which projects into a hole in the iron limb 2. Specifications 207,219 and 207,483 are referred to.
Patent GB-811168-A (GB)
Title: Improvements in or relating to the handling and storage of slurries of soluble salts
IPC: B67D7/06
Filed: 1955-07-18
Abstract: 811,168. Treating solids with liquids. DIAMOND ALKALI CO. July 18,1955 [July 21. 1954], No. 20750/55. Class 82(1) In an apparatus and method for storing and handling a slurry of a soluble salt, solution is withdrawn from a point between the surfaces of solution and slurry via a means (12) within the storage vessel (2) attached to a support (float 16) maintained in position by the liquid level (10), whilst means (nozzles 34) are provided for directing a fluid stream into the slurry near the bottom of the vessel in a direction away from the surface of the liquid to maintain the slurry in readily dispensable condition. As described, the float 16 carries the open end of the pipe 12 which is .pivoted at 14; slurry of a salt in saturated solution is introduced by means 8 which may be of the type described in Specification 774,249 [Group XII]; fluid, e.g. water and/or vapour with or without air or other gas, e.g. steam is introduced through the pipe 30 and the downwardly directed nozzles 34 each with rubbersleeve check valves 40 (Fig., VI, not shown); saturated solution is drawn off by pump 44 and delivered via valve 50. When more slurry is needed in tank 2, valve 50 is closed and saturated solution is pumped via valve 52 and pipe 53 to mix with dry salt (e.g. soda ash, supplied via pipe 57 under suction set up by pump 54) in the slurryforming means 8. The temperature is controllable by admission of steam at 34.
Patent GB-798881-A (GB)
Title: Method of purifying sugar-containing liquids
Inventor: ZENZES ALEXANDER MONTANUS
IPC: C13B20/02
Filed: 1955-07-18
Abstract: Sugar-containing liquids are purified by the addition of reactive magnesium carbonate, obtained by the action of carbon dioxide on a suspension of magnesia, which is converted into magnesium hydroxide by suitable substances, whereafter impurities precipitated through the nascent hydroxide are filtered off. Preferably, the reaction to obtain the carbonate is at a pH of 7.3 to 9.3 and a temperature below 55 per cent.  Lime or lime-containing materials convert the carbonate to the mascent hydroxide.  Alternative procedures are: (1) juice treated with lime at a pH above 10 is carbonated to pH less than 10, and the precipitate separated; (2) juice adjusted to pH 8.5 preferably by adding lime, and, while maintaining pH constant at 8.5-9.5, treated with magnesia and carbon dioxide, and then lime added, and precipitate removed; (3) juice treated with magnesium carbonate, then lime, and precipitate removed.
Patent GB-1278894-A (GB)
Title: Improvements relating to patterning mechanism for multi-feed circular knitting machines and to a method of knitting on the same
Inventor: HARRIS RONALD
IPC: D04B15/68
Filed: 1970-04-30
Abstract: 1278894 Knitting-machines STIBBE MACHINERY Ltd 19 April 1971 [30 April 1970] 20801/70 Heading D1C A circular multi-feed machine having axially movable pivoted jacks 14 and arranged so that needles knit at some feeds only of groups of feeds to yield multi-coloured patterns, includes a jack cam system designed to reduce the number of patterning units required. Jack 14, fulcrummed at 14d, is engaged by the forked upper end 13a of pivoted selector jack 13. Pattern units 23/PU deflect the selectors to swing jack butt 14a out of the cam path. A fixed insert 21 behind the jack includes a butt 21c to enagage butt 14c and lock the jack when necessary. The cam systems are identical for each section and include raising and lowering cams 20, 19; draw-out cams 24 for the fork 13a; manually settable lowering cams 28, and depressor cams 27. The identical sections permit setting-up for knitting jacquard or "blister" patterns of the desired number of colours. As set out for three-colour jacquard, patterning units are provided before the two sections A, B and cam 28 in section C is lowered. Jacks not depressed by PU<SP>1</SP> rise at cam 20- raising corresponding needles-and are lowered at 19. Butts 14a pass in front of cam 27 and are depressed to pass behind raise cams 20 at section B and similarly at C. In section C, however, they are lowered by cam 28 so that having been pulled out by cam 24 they can be reselected at the following section. Jacks depressed by PU<SP>1</SP> are pushed out by cam 24 acting on the forks 13a so that a reselection for knitting in section B occurs at PU<SP>2</SP>. Needles knitting in B avoid knitting at C similarly to those knitting in A. Jacks unselected at either PU are forced out by cam 24 in section B and thereby knit in section C. To knit a "blister" fabric a PU<SP>1</SP> is provided at the first section only; cam 27 of the first section and cam 28 of the third are lowered (see Fig. 4 not shown). Selected needles knit at the first two sections, but not at the third. Lowered cam 27 ensures that all the remaining needles knit at the third section.