baber/WOPTO huggingface dataset:
Patent GB-808838-A (GB)
Title: Improvements in and relating to the production of artificial filaments, yarns, threads and the like from viscose
Inventor: TALLIS ERNEST EDWARD
IPC: D01F2/10
Filed: 1955-05-09
Abstract: Regenerated cellulose filaments are produced by extruding viscose, to which has been added 1.0-10 per cent by weight, based on the weight of the cellulose in the viscose, of a polyethylene oxide of average molecular weight 300-10,000, preferably 1000-3000, at a sodium chloride salt point of 5-18 into an aqueous coagulating bath containing a proportion of sulphuric acid 0.8-1.5 times that of the caustic soda in the viscose and 3-20 per cent of zinc sulphate.  The optimum concentration of polyethylene oxide for producing yarns of normal denier by the "hot stretch" process, as described in Specification 467,500, [Group IV], is 1 to 4 per cent, based on the weight of the cellulose.  When spinning yarns and rayon staple of higher denier, higher concentrations of polyethylene oxide are desirable.  The preferred salt point for good yarn properties is 6-16 and for good cord properties 8-13, the best all-round properties being obtained when the salt point is 9.5-11 and the viscose contains 7-7.5 per cent of cellulose.  In an example, viscose containing 7.0 per cent of caustic soda, 7.5 per cent of cellulose, 41 per cent based on cellulose of carbon disulphide and 1.5 per cent based on cellulose, of a polyethylene oxide having an average molecular weight of 1000 is extruded at a salt figure of 10.2 and at 55 DEG  C. into an aqueous coagulating bath containing 8.0 per cent of sulphuric acid, 14 per cent of sodium sulphate and 6 per cent of zinc sulphate. The yarn thus formed is stretched 87 per cent in an aqueous bath at 95 DEG  C. containing 3 per cent of sulphuric acid, 0.8 per cent of sodium sulphate and 0.4 per cent of zinc sulphate, and is subsequently treated in a hot aqueous acid bath of the same constitution.  Cords made from yarns produced by the process of the invention have greater fatigue life.  Textile yarns similarly produced have an increased resistance to abrasion and soiling. Specifications 557,218, [Group IV], 634,868 and 786,319 also are referred to.
Patent GB-125860-A (GB)
Title: Improvements in and relating to Electrically Operated Fuel Valves for Internal Combustion Engines.
IPC: F02M51/06
Filed: 1918-08-16
Abstract: 125,860. British Thomson - Houston Co., (General Electric Co.). Aug. 16, 1918. Valve-gear. - A fuel-injection valve 8 for high-compresnion engines, a spring 34 for holding it to its seat, and an electro-magnet 19 for operating it are enclosed in a casing 7, 15, and no moving parts requiring stuffing-boxes pass through the casing. To reduce the current required in the solenoid, the armature is formed in two parts 31, 33. The part 31 is the head of the valve-stem 8 and can move independently of the part 33 after the latter has been moved into contact with the core of the magnet. By this arrangement, the distance separating the part 33 of the armature from the pole of the magnet is less than the lift of the valve, and the necessary force for causing the initial movement of the valve from its seat is obtained with a weaker current. This prevents destructive sparking on the commutator in the circuit of the solenoid.
Patent GB-672923-A (GB)
Title: Improvements in or relating to method of producing pigments from basic dyes
IPC: C09B69/06
Filed: 1949-05-19
Abstract: Pigments are made by reacting an aqueous solution of a basic dye with an aqueous suspension of hydrous zirconia or hydrous zirconium phosphate to which has been imparted an electronegative charge by adding an aqueous solution of a suitable anion in quantity sufficient to impart the charge but insufficient to dissolve the zirconia.  The suitability of anions is determined empirically by cataphoresis and suitable anions specified are salicylate, benzoate, dichromate, citrate, glycollate, lactate, malate, dihydrogen phosphate, tartrate, and mucate.  In the case of zirconium phosphate suspensions, the electronegative charge may be imparted by simply acidifying to a pH of about 5, thus releasing phosphate ions.  In examples, a zirconia suspension obtained from zirconium oxychloride and ammonium hydroxide is treated with (1) crystal violet and sodium citrate; (2) methyl violet and sodium salicylate; (3) rhodamine B or safranine and sodium salicylate; also in examples: (4) a zirconium phosphate suspension is acidified with hydrochloric acid to a pH of 5.5 and treated with methyl violet.
Patent GB-433333-A (GB)
Title: Improvements in black oxide of iron
IPC: C01G49/08
Filed: 1934-05-03
Abstract: Black oxide of iron is obtained from precipita<PICT:0433333/III/1> ted ferrous compounds by oxidation with air or other oxygen - containing gas at elevated temperatures, say from 220--300 DEG  F., and at pressures above about 40 lbs. per sq. in. and up to say 100 lbs. per sq.in.  The precipitate may be obtained by treating ferrous sulphate or chloride with an alkali carbonate or hydroxide, preferably in excess, and precipitation may be effected at temperatures of 125--200 DEG  F.  Precipitation and oxidation may take place in a steam - jacketed autoclave 10 provided with inlets 11--13 for the reactants and an outlet tube 22.  Turbine wheels 17, 18 mounted on a rotating shaft 14 serve to draw slurry towards the axis of the autoclave and force it out from the periphery of the wheels, vanes 19, 21 being fitted to minimize swirling and cause vertical movement of the slurry.  Air is supplied through a pipe 27 to a perforated annular conduit 28 situated above the wheel 18.
Patent GB-332926-A (GB)
Title: Stable and sterilized solutions of salts of para-dialkyl-aminoaryl-phosphinous acids
IPC: A61K9/00
Filed: 1929-04-30
Abstract: 332,926. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). April 30, 1929. Hypodermic injections.-Solutions of salts of pdialkylaminoaryl-phosphinous acids, which are stable, clear and sterilized, are prepared by adding an acid-binding agent to a solution of the salt, or dissolving a mixture of the salt with an acid-binding agent, and finally sterilizing the solution. The solvent may comprise water or solutions such as Ringer solution and physiological salt solution. Caustic alkalis and alkalinereacting soluble carbonates, phosphates and acetates are mentioned as suitable acid-binding agents. The salts of p-dialkylaminoaryl-phoshinous acids may be prepared according to Specification 214,836, [Class 2 (iii), Dyes &c.]. The resulting solution are useful for injection for therapeutic purposes. Examples are given of the addition of sodium carbonate to an aqueous solution of the sodium salt of 1-dimethylamino or diethylamino - 3 - methylbenzene-4-phosphinous acid; a little sodium chloride is also added in one case and in both cases the solution is sterilized with a current of steam.
Patent GB-1096345-A (GB)
Title: Process for the production of adipic acids
IPC: C07C51/285
Filed: 1965-03-30
Abstract: Adipic acids are made by oxidizing <FORM:1096345/C2/1> wherein R is hydrogen or an alkyl or cycloalkyl group with an organic percarboxylic acid or hydrogen peroxide in formic acid to yield derivatives of e -hydroxycaproic acid, e.g. e -caprolactone, e -formyloxy-caproic acid or a polyester of hydroxycaproic acid, and in a second stage oxidizing said derivatives to adipic acids with nitric acid having a concentration of 30-80% by wt.  If the initial oxidation product contains a substantial amount of e -formyloxycaproic acid, it is preferred to recover the formic acid therefrom by converting the acyloxy compound to a polyester of e -hydroxy caproic acid by heating in the presence of 0.1-5% by wt. of a strong acid known as an esterification catalyst.  Any caprolactone present in the initial product may be removed prior to this conversion.  It is preferred to effect the nitric acid oxidation step at 30-100 DEG  C. Examples relate to the preparation of adipic acid and trimethyl adipic acid.
Patent GB-523523-A (GB)
Title: Improvements in or relating to twine polishing machines
IPC: D06C15/00
Filed: 1939-05-06
Abstract: 523,523. Sizing and polishing twine. BYWATER, Ltd., W., and RIMINGTON, K. T. B. May 6, 1939, No. 13569. [Class 140] [Also in Group XXV] In a twine polishing machine the twine, after passing in an extended path through the size box, passes a plurality of times round a drying cylinder and in contact with high speed polishing rollers, being guided across the machine by means of angle rollers during the dryirig and polishing treatment. Ends of twine 5 drawn upon creel bobbins 6 pass into a sizing trough laterally spaced relation and between and in contact with a pair of polishing rollers 12 rotating in a direction opposite to the direction of travel of the twine and are carried across the machine by rollers 11 the axes of which are disposed at an angle to the axis of the cylinder 10. The twine finally passes to take-up rolls 13. Suitable speeds for the drying cylinder 10, polishing rollers 12 and angle rollers 11 are 20, 1800 and 400 revolutions per minute respectively. Dirty twines may be preliminarily scoured in a separate machine.
Patent GB-1224911-A (GB)
Title: Method of electrostatically spray coating articles with a liquid coating material
IPC: B05D1/04
Filed: 1968-03-20
Abstract: 1,224,911. Electrostatic coating. DEVILBISS CO. 20 March, 1968 [20 March, 1967; 25 Oct., 1967], No. 13575/68. Heading B2E. Articles are electrostatically spray coated with liquid coating material by charging a body of the liquid coating material by applying a voltage thereto, forming charged spray particles from a charged body of the liquid coating material by mechanical atomisation by air, and electrostatically depositing the charged particles on the article to be coated, the body of liquid coating material having such resistivity and being charged to such a voltage that at least 95% of the current carried to the article is borne by the charged coating material particles and not more than 5% of the current is airborne. The coating material may have a resistivity of 0.3 to 300 megohm-centimeters. Apparatus for carrying out the method is described.
Patent GB-694785-A (GB)
Title: Improvements in electrical impedance relays
Inventor: RYDER CLIFFORD
IPC: H01H53/015
Filed: 1950-05-31
Abstract: 694,785. Electromagnetic relays; protective cutout arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 17, 1951 [May 31, 1950], No. 13642/50. Class 38 (v) An impedance relay comprises a movable element 30 carrying two coils 33, 34 energised in accordance with the current and voltage of the "impedance circuit", and acting in opposition to each other in a permanent magnetic field, change of impedance, e.g. owing to a fault causing the element 30 to move and actuate contacts. In the form shown the coils 33 and 34 each move in a radial field between the poles of two pot magnets magnetized by a central member 37. In a modification Fig. 1 (not shown) the two coils lie adjacent each other and there is only one pot magnet. In a further modification, Fig. 5 (not shown) the coil-carrying member is pivoted instead of moving longitudinally. The invention is shown applied to a protective system in which the voltage and current coils are supplied from transformers through fullwave rectifiers, Fig. 2 (not shown).
Patent GB-1243058-A (GB)
Title: Improvements in or relating to electro-precipitation
Inventor: DYLA JOHN FLORIAN
IPC: B03C3/41
Filed: 1968-03-21
Abstract: 1,243,058. Electrostatic precipitators. LODGE-COTTRELL Ltd. 11 March, 1969 [21 March, 1968], No. 13660/68. Heading B2J. An electro-precipitator discharge electrode member comprises a first toothed portion 30 connected to a second complementary toothed portion 32 by an intermediate web portion 28 the toothed portions intermeshing and each toothed portion providing regions 22 of electrical discharge when the member is in use, the web portion 28 being formed into a hollow cross-section which may be triangular, circular or rectangular. In a modification the toothed portions may be rectangular in shape and may have rounded corners or the toothed portions may be provided with re-entrant portions to provide a number of sharp corners.
Patent GB-1120763-A (GB)
Title: Pharmaceutical compositions containing coumaran derivatives
Inventor: WILLEY GEORGE LAWRENCE
IPC: C07D307/80
Filed: 1966-03-28
Abstract: Coumaran derivatives, mostly novel, of formula <FORM:1120763/C2/1> wherein R1, R2 and R3 are each H or C1- 3 alkyl and R4 is H, halogen, C1- 3 alkyl or C1- 3 alkoxy, are prepared either by reaction of a compound of formula <FORM:1120763/C2/2> with an amine of formula HNR2R3 or by reduction of an oxime of formula <FORM:1120763/C2/3> optionally followed by mono- or di-alkylation, or by reduction of a 2-(1-formamido) ethyl coumaran to give the mono-methylamino compound. Oximes of the last general formula above are prepared from the corresponding 2-acetyl coumarans which are themselves obtained from the 2-carboxylic acids via the acid chlorides.  2 - (1 - Formamido) ethyl coumarans are obtained by action of formic acid/formamide mixture on the 2-acetyl compound.  7 - Methyl - 2 - carboxy - coumaran is prepared by reduction of 2-carboxy-7-methylfuran which is obtained by heating 3,4-dibromo-8-methylcoumarin which is prepared by action of bromine on the 8-methylcoumarin.ALSO:Pharmaceutical compositions, in conventional forms for oral and parenteral administration, having anti-depressant and hypotensive activity, comprise an aminoalkylcoumaran of formula:  <FORM:1120763/A5-A6/1> wherein R1, R2 and R3 are H or C1-3 alkyl and R4 is H, halogen, C1-3 alkyl or C1-3 alkoxy, and a pharmaceutically acceptable carrier therefor.
Patent GB-1514362-A (GB)
Title: Apparatus for the treatment with liquids of layers formed on a filtering medium
IPC: B01D11/02
Filed: 1976-04-05
Abstract: 1514362 Belt filter apparatus; mixing CIBA-GEIGY AG 5 April 1976 [4 April 1975] 13774/76 Headings B1C and B1D A belt filter apparatus comprises an endless belt 4 of filter cloth; vacuum trays 5 disposed under an active run of the belt; means 1 for feeding material to be filtered to the belt; at least one agitator means 20 positioned above the active run and including a rotary agitator of axis of rotation parallel to and extending across the filter cloth, and formed as a plurality of agitating elements, e.g. vanes 22a, 22b, extending radially from the axis of rotation; a part-cylindrical hood 24a, 24b covering the agitator and having an axis coaxial with the axis of rotation; means for supplying liquid to the agitator; and means for generating relative movement between the agitator and belt and for rotating the agitator in a direction opposite to that of the relative movement. In use of the apparatus, there is a first filtration stage A, a stage B wherein the cake formed in A is agitated with a liquid, e.g. for pH adjustment, and then returned to the belt, a stage C where the treating liquid is removed, and a stage D wherein the cake is separated from the belt. The belt may be supported over a rotary drum divided internally into vacuum segments (Fig. 8 not shown) as an alternative to the use of a flat run of belt over filter trays. The agitator device may itself be movable, e.g. by being mounted on a motor-driven trolley. Two or more agitator elements may be arranged for serial treatment of the cake (as shown in Figure 1) with a common cover. The agitator unit may be vertically adjustable relative to the belt. The treating liquid may be supplied to the interior of the agitator spindles and sprayed radially therefrom. The agitator vanes may be inclined forwardly or concave in the direction of rotation.
Patent GB-329144-A (GB)
Title: Improvements in photographic objectives
IPC: G02B9/34
Filed: 1929-05-03
Abstract: 329,144. Warmisham, A., and Kapellla, Ltd. May 3, 1929. Lenses. - Photographic objectives of large aperture having a flat field and good central definition are based on the Petzval type of objective. The usual cemented doublet front glass of this type of objective is replaced by a separated doublet in which the convergent member is double convex and of Dense Barium Crown glass and the divergent member is double concave and made of a Dense Flint glass. The single dispersive member of the type is replaced by a, cemented doublet dispersive member comprising a double convex component made of Dense Barium Crown glass having a refractive index greater than 1.60, and a double concave dispersive member of light Flint glass having a refractive index not exceeding 1.575. Numerical data for such an objective having an aperture F/1.8 are given in the Specification.
Patent GB-253109-A (GB)
Title: Improvements in or relating to valve control means for dry gas meters
IPC: G01F3/22
Filed: 1926-05-31
Abstract: 253,109. Pintsch Akt.-Ges., J. June 6, 1925, [Convention date]. Gas meters. - In a dry gas meter furnished with a single membrane the tight closing of the coaxial twin inlet and outlet valves c against their seatings f, g is ensured by connecting the operating shaft a to the valve spindles by means of leaf springs b. The upper seatings g are formed integrally with rings d secured in openings in the gas chamber wall e, the ring being of considerably greater diameter than the valves so as to allow the valves to be passed through the openings before the rings are secured.
Patent GB-514541-A (GB)
Title: Improved manufacture of cork compositions
IPC: C08L97/00
Filed: 1938-05-09
Abstract: 514,541. Cork compositions. TENNANT, W. J. (Crown Cork & Seal Co., Inc.). May 9, 1938, No. 13842. [Class 70] In cork compositions consisting of cork granules adhered together by a binder, the binder consists of gel prepared from glue, albumen or casein and a non-aqueous solvent such as glycol or glycerine, mixed with a resin such as dammar, copal, phenol- or ureaaldehyde resin, cumaron or alkyd resin or mixtures of resins other than mixtures of phenolaldehyde and urea-aldehyde resins, and the composition contains a plasticizer consisting of a polyhydric alcohol, sulphonated castor oil or a wax such as ceresin, paraffin, carnauba or beeswax. The resin may be added in a partially cured state and hardened when in the composition. A hardener or accelerator for the resin, such as hexamethylenetetramine, oxalic or other organic acid, may be added. Wax may be introduced in admixture with latex or rubber mixture. Specifications 424,568, 476,864 and 482,539 are referred to.
Patent GB-403112-A (GB)
Title: Improvements in or relating to gas furnaces
IPC: F23D99/00
Filed: 1932-05-13
Abstract: 403,112. Muffle furnaces; stoves; burners. GAS LIGHT & COKE CO., DIETERICHS, W., DAVIES, D. J., and LLOYD, P., 84, Horseferry Road, London. May 13, 1932, No. 13856. [Class 51 (ii).] In a gas-fired muffle furnace, the burner tube 29, having a plurality of flame outlets 30, is housed in a slot 28<1> in the lower part of the refractory lining 1, the tube 29 being loosely supported at its inlet end in the end plate 10 and rigidly secured to the furnace casing at the other end by a readily detachable connection 32, Fig. 2, or 47, Fig. 5. The metal casing 8 enclosing the lining 1 is formed with a similar slot 29<1> to permit insertion and removal of the burner tube. In the form shown in Figs. 2, 3, the muffle 2 is supported above the burner by upwardly projecting members 21, 23 and by a boss 24 on the rear wall of the lining 1, the front end of the muffle being closed by a door 34 which carries a block 35 co-operating with a mouthpiece 33. The gases passing up around the muffle escape to the stack 36 through a roof flue 26 the inlet to which consists of a narrow slot 27 opening at the front end into a large aperture 28. The lining 1 is formed in two parts 3, 4, Fig. 3, having an interengaging projection and recess 5, 6, respectively, and cemented together along the vertical plane 7, endwise rigidity being obtained by tie-rods 13 .. 16 passing through the lining and secured to the end plates 9, 10. The invention is shown in Fig. 5 applied to a stove for heating soldering irons, the muffle 40 being, in this case, open at the front and the waste gas outlet consisting of a roof aperture 48 capped by a baffle 49. The muffle 40 may have openings in its upper wall in order that a portion of the waste gases may pass through the muffle and sweep out any vapours formed therein.
Patent GB-198378-A (GB)
Title: Improvements in hand rakes
IPC: A01D7/06
Filed: 1923-05-28
Abstract: 198,378. Henning, C. B. May 27, 1922, [Convention date]. Rakes. - The tines 8 are resilient members secured in parallel in a head piece, and have forwardly and downwardly extending members 10 with their extremities 11 bent forwards again, and, it may be, finally up-turned. The head piece comprises upper and lower members 4<A>, 4 secured to a handle 5 and has stay members 6, 7. The tines are strengthened by a transverse member 12, preferably of wire, and a central holding plate 13 and side wires 14, 15 retain the member 12 in position. Several members 13 may be employed. The tines may be of wire or of split bamboo: metallic tines may be splayed at their forward extremities.
Patent GB-642847-A (GB)
Title: Improvements in and relating to continuous rayon spinning machines
IPC: D01D10/04
Filed: 1948-05-25
Abstract: 642,847. Spinning rayon. COURTAULDS, Ltd. (Industrial Rayon Corporation). May 25, 1948, No. 14078. [Class 120(ii)] [Also in Group XXIV] In a continuous rayon spinning machine comprising two or more series of threadadvancing reels 20 arranged stepwise, with individual shafts 22 for driving each series but all driven from a common driving shaft 10, each shaft 22 is clutched to a stub shaft 23, geared to the shaft 10, by discs 28 having circumferential lugs 31 engageable with slots 27 in a cylindrical member 26 secured to the shaft 23, the end faces 33 of the member 26, between the slots, being slightly chamfered so as to guide the lugs into the slots. The discs encircle a sleeve 25 splined on the shaft 22 and are frictionally locked to the sleeve, after engagement of the lugs with the slots, by a collar 29 slidable on the sleeve 25 under the control of a lever 42. The stub shaft 23 is carried by a sleeve 37 secured by set screws in a sleeve 40 secured to the frame, so as to afford easy removal of the shaft. U.S.A. Specifications 2,174,240 and 2,217,357 are referred to.
Patent GB-1433455-A (GB)
Title: Method for preparing phenol compounds
IPC: C07C201/00
Filed: 1974-03-29
Abstract: 1433455 Preparation of phenol compounds OLIN CORP 29 March 1974 [30 April 1973] 14128/74 Heading C2C The invention relates to a method for preparing phenol compounds which comprises: (a) diazotizing an aminobenzene compound of formula wherein R represents halogen, -CF 3 , C 1-4  alkyl and -NO 2  group; in an aqueous medium in the presence of sodium nitrite and phosphoric acid to form a reaction mixture containing the diazonium salt of the aminobenzene compound, and (b) heating the said reaction mixture to decompose said diazonium salt to the corresponding phenol compound. The example describes the preparation of o-fluorophenol.
Patent GB-106409-A (GB)
Title: Improved Attachment for Ladies' Hats to Avoid Continually Piercing the Material with the Hat Pins.
Inventor: HENRY JOHN WILLIAM
IPC: A42B7/00
Filed: 1916-10-05
Abstract: 106,409. Henry, J. W. Oct. 5, 1916. Point-protectors for pins.-The point of a hatpin is received by a hollowed-out or spoon-shaped plate which is secured by bent-out portions 3 or by stitching through eyes to the hat, and is provided with side walls 2 and with a small covering piece 5 into which the point of the pin is guided by the plate. A small tube or sleeve 6, attached to the hat bv clips or fastenings 7, may lead the pin through a small orifice passing through the side of the hat; or, in a modification, a. piece of cork may be fixed within the covering piece 5 to receive the point of the pin.