baber/WOPTO huggingface dataset:
Patent GB-759636-A (GB)
Title: Manufacture of new cobaltiferous azo dyestuffs
IPC: C09B45/20
Filed: 1953-12-29
Abstract: The invention comprises complex cobalt compounds of monoazo dyestuffs which are free from sulphonic acid and carboxylic acid groups and are of formula:- <FORM:0759636/IV(c)/1> where R is the residue of a hydroxybenzene bound to the azo group in ortho position to the hydroxyl group and A is a naphthalene residue bound to the azo group in ortho position to the amino group.  They are prepared by treating the mono-azo dyestuffs with cobalt yielding agents.  The mono-azo dyestuffs are prepared by coupling a diazotized ortho - hydroxy - aminobenzene free from sulphonic or carboxylic acid groups, such as 4 - chloro - or - methyl - 2 - amino - phenol, but preferably also containing a nitro group, such as 4 - , 5 - or 6 - nitro - 2 - aminophenol, 4 - nitro - 6 - acetylamino - 2 - aminophenol, 6 - nitro - 4 - acetylamino - 2 - aminophenol, 4 - chloro - or - methyl - 5 - or - 6 - nitro - 2 - aminophenol, 6 - chloro - 4 - nitro - 2 - aminophenol and 4 : 6 - dinitro - 2 - aminophenol, with an aminonaphthalene methyl sulphone free from sulphonic and carboxylic acid groups and coupling ortho to the amino group. Specified aminonaphthalene methyl sulphones are 1 - aminonaphthalene - 4 - or - 5 - methyl sulphone and 2 - aminonaphthalene - 3 -, - 4 -, - 5 -, - 6 - and - 7 - methylsulphone.  The metallization process is carried out in a weakly acid, neutral, or preferably alkaline medium, advantageously at raised temperature and if desired in the presence of an organic acid salt, a base or an organic solvent. Preferably less than one atom of cobalt per molecule of dyestuff is used. Specified cobalt compounds are complex compounds of aliphatic hydroxycarboxylic or dicarboxylic acids, salts such as cobalt acetate and cobalt hydroxide.  The dyestuffs dye and print silk, leather, superpolyamides, superpolyurethanes and especially wool in grey, yellow, blue and green tints.  In examples dyestuffs are prepared from some of the reagents described above and used for dyeing wool.
Patent GB-390114-A (GB)
Title: Improvements relating to the manufacture of yeast
IPC: C12N1/18
Filed: 1932-12-20
Abstract: In the manufacture of bakers' yeast, stock yeast of high protein content is used in an amount upwards of 30 per cent of the total sugar, calculated as molasses, which is present during the propagating period, and the inorganic nitrogen nutriment present is limited so as to produce a yeast product having a protein content of less than 50 per cent on a dry basis.  According to an example, molasses is treated in known manner with ammonium phosphate, and a portion of the solution is placed in a fermenter to which high protein content stock yeast is added.  The remainder of the nutrient mixture is added gradually with aeration, the acidity of the medium being maintained at a pH value of between 4,0 and 6,0, preferably between 4,5 and 5,0, by the fractional addition of ammonia solution or other suitable agent. The process is completed with aeration at a pH value of about 6,0.  The quantity of assimilable nitrogen added to the molasses should be between 4 and 12 per cent, preferably 7 to 8 per cent, and should be wholly or in part inorganic.
Patent GB-1066944-A (GB)
Title: Photo-sensitive silver halide layers
IPC: G03C1/91
Filed: 1963-09-13
Abstract: A photographic material comprises a support coated with a vacuum deposited silver halide layer and at least one vacuum deposited sensitizing agent consisting of: (a) halide or thiocyanate of an oxidizable metallic cation (other than silver) or (b) a metal other than silver of Group Ib, IIb or VIII of the Periodic Table or (c) an oxide, sulphide, selenide or telluride of an oxidizable metallic cation or of a metal of group Ib, IIb or VIII of the Periodic Table. The oxidizable metallic cations may be Cu, Au, Pt, Rh, Fe, Pd, Ni, Co, Hg, Sn, Pb.  A vacuum deposited adhesive layer of tin oxides, silicon oxide or titanium oxide or silver, 0.5 micron thick is preferably formed on the support prior to deposition of the silver halide.  A vacuum deposited coating of a white pigment such as BaSO4, PbSO4, TiO2, SiO2 o Al2O3 may also be formed prior to coating with the silver halide.  Suitable supports are resins such as polycarbonates, cellulose esters, polystyrene, P.V.C., polyesters particularly those based on terephthalic acid and glycols, and paper. The photographic material may be formed by any of the following methods:-(1) The silver halide and sensitizer are mixed together and evaporated and condensed together. (2) The silver halide and sensitizer may be simultaneously evaporated from separate sources. (3) A first layer of silver halide or of silver halide containing sensitizer (a) is deposited to a thickness of 1 to 100 microns, and then a second layer of silver halide containing one or more of the sensitizers is deposited to a thickness of 0.01 to 1 micron.  The sensitizer concentration ranges from 10-2 to 20 mol per cent of the silver halide. The support should be at 50 DEG -80 DEG C. during coating and an outer protective layer of SiO2, TiO2 or Al2O3 ma be vacuum deposited on the silver halide.  A halogen acceptor such as thioureas, aldehydes, saccharoses or polysaccharoses, organic derivatives of hydroxylamine and hydrazine and phenolic compounds may be incorporated in the support or coating layers.
Patent GB-453931-A (GB)
Title: Improved fluxes for the soldering of metals
IPC: B23K35/36
Filed: 1934-12-17
Abstract: Small amounts of substances formed by the reaction between concentrated sulphuric acid, oleum, chlorosulphonic acid, or other strong sulphonating agent and aliphatic alcohols, esters, or ethers containing more than seven carbon atoms in the alcoholic radical are added to zinc chloride solutions for use as soldering fluxes. Substances which may be sulphated include oleyl, stearyl, cetyl, lauryl, mesitoyl, carnaubyl, and melissyl alcohol, acetyloctyl alcohol, stearoglyceryl ether, oleoglyceryl ether, and palmettoglyceryl ether.  The alkali metal, ammonium, or amine salts of the sulphates may be used and the sulphates or their salts may be directly dissolved in the zinc chloride solution or they may be added as solutions in water, alcohol, &c.  Examples of fluxes given are solutions in water of zinc chloride and cetyl sulphuric ester, zinc chloride and oleyl sodium sulphate, and zinc chloride, denatured alcohol, and cetyl ammonium sulphate.
Patent GB-177267-A (GB)
Title: Improvements in wireless transmitting apparatus
IPC: H04L27/04
Filed: 1920-12-24
Abstract: 177,267. Marconi's Wireless Telegraph Co., Ltd., (Davis, N. E.). Dec. 24, 1920. Keying systems and apparatus.-An oscillatory circuit of a wireless transmitter is coupled to the aerial A by two opposed coils B, C which normally produce no effect in the aerial. Signalling is effected by closing a switch E which short-circuits one of the coils C and thus permits the coil B to energize the aerial. The circuit B, C, D may be set in oscillation by a valve generator or other means. To avoid sparking the inductance of the coil C should be small, and the switch leads should be short and of low impedance. A light relay may operate the switch E.
Patent GB-522687-A (GB)
Title: Marking or scoring device for use in connection with physical training
Filed: 1938-12-13
Abstract: 522,687. Calculating-apparatus. POLLARD, E. C. ROWBOTHAM, T., and HOLLAND, E. Dec. 13, 1938,-No. 36272. [Class 106 (i)] An exercise scorer consists of a tablet suitable for carrying in the hand and having marked thereon a scale d on which exercises of varying difficulty are represented together, with the corresponding repetitions possible without excessive fatigue and the scorer also carries columns 1 to 9 each corresponding to a particular exercise and each having graduations proportional to the energy expended in one cycle of the particular exercise. By means of a moving cursor e<SP>1</SP> it is thus possible to sum the energy expended in the performance of various exercises for a varied time each and indicate the total in a final per cent. column. The result of these calculations can be written on a chart on the back of the tablet.
Patent GB-774319-A (GB)
Title: Improvements in or relating to the absorption of silicon tetrafluoride
IPC: C01C1/16
Filed: 1954-12-16
Abstract: Silicon tetrafluoride is absorbed from gases containing it and phosphate impurities, e.g. den gases resulting from the treatment of phosphate material with acid, in an aqueous ammonia solution maintained at a temperature between its freezing point and 40 DEG C. and containing sufficient ammonia to maintain the pH of the resulting solution between 3.5 and 5.5, and the insoluble tricalcium phosphate and silica are separated by, e.g. centrifuging or filtering.  Den gases may be continuously contacted with aqueous ammonia solution in a one or two-stage jet absorber or absorption tower, and aqueous or anhydrous ammonia is continuously injected to maintain a pH 4.5, while slurry is continuously withdrawn.  The withdrawn material may be treated to produce ammonium fluosilicate, ammoninum fluoride or bifluoride, or alkali metal or other metal fluorides.  For example, as described in Specification 765,901 the slurry is added to an aqueous solution containing sufficient ammonia to maintain a pH above 7.5 in the resulting solution, while the temperature is maintained below 40 DEG C.  Precipitated silica is separated, and ammonium bifluoride may be prepared from the resulting ammonium fluoride solution by heating.
Patent GB-944184-A (GB)
Title: Improvements in or relating to joints between wooden members
Inventor: SKLAN JACK
IPC: F16B12/02
Filed: 1961-10-11
Abstract: 944,184. Dovetail joints. WOOD ENGINEERING Ltd. Jan. 1, 1963 [Oct. 11, 1961], No. 36512/61. Heading A4W. A joint between two wooden members 1, 5 comprises a dovetail groove 6 formed in the member 5 and a similarly dovetailed mild steel or other metal element 7 lodged in said groove 6, with a portion of a member 1 entered in the groove 6 and gripped by the edges of the metal element 7. The flanges of the element 7 may be bent inwards and may be serrated or roughened. The construction of a drawer is described using this joint.
Patent GB-1097319-A (GB)
Title: Apparatus for removing suspended solids from air
IPC: B01D45/16
Filed: 1965-08-26
Abstract: 1,097,319. Air filter. AIR KLEENER CORPORATION OF AMERICA. Aug. 26, 1965 [Aug. 28, 1964], No. 36603/65. Heading BIT. [Also in Division F4] In an air cleaner the air passes through a series of passages each of which is divided by a horizontal plate 22 into an upper and a lower stream, both the streams containing brush filter elements 35, 38, having wire or polystyrene bristles, while the lower stream in which most of the particles are concentrated is partly closed by an upright baffle 18, curved plates 19, 23 conducting the air from one passage to the next. The baffles 18 form dust collecting pockets, and the different divider plates 22 together with the brushes 35, 38 above and below them are so arranged as to be removable as separate units from the casing (Fig. 4, not shown) for emptying and cleaning. A door 10 provided with a foam plastic sealing panel 10a forms one side of the casing to facilitate the removal. In the lowermost unit the end baffle 31 below the divider plate 29 closes the lower stream completely. Fig. 3 shows a self-contained ventilator unit in which air is drawn by a centrifugal fan 58 through an upper grill 50 and discharged after filtration from a lower grill 60, ultra violet lamps 61, 61a being provided to sterilise the air. In Fig. 1 (not shown) the filtration unit is adapted to be connected to supply and discharge ducts. The air passage generates electrostatic charges on brushes, which agglomerates dust particles. Dust accumulates in pockets rather than on brushes.
Patent GB-981396-A (GB)
Title: Improvements relating to skips for dumper vehicles
Inventor: SMITH ARTHUR HENRY
IPC: B60P1/28
Filed: 1959-12-10
Abstract: 981,396. Skips for dumper vehicles. BENFORD Ltd. March 10, 1961 [Dec. 10, 1959], No. 37008/64. Divided out of 981,396. Headings B8E and B8H. The description is similar to that of the Specification 981,396 but the claims are directed to the skip.
Patent GB-1275083-A (GB)
Title: Tourniquet apparatus
Inventor: GOTTFRIED MAX
IPC: A61B17/135
Filed: 1969-07-23
Abstract: 1275083 Tourniquet apparatus JOBST INSTITUTE Inc. 23 July 1969 37148/69 Heading A5R A tourniquet apparatus comprises a plurality of cuffs 23-26 for securing to a patient's limbs, a supply of pressurised fluid avaible to the cuffs via valves 27-30, an adjustable circuit for controlling the operation of the valves so that each cuff is in a pressurised or relieved state in sequence, and a warning circuit activated by a failure of the fluid supply or the valve actuating circuit. In the embodiment, three of the cuffs are inflated at any one time via cam 31, which is driven by a motor 43. A timing circuit 42 determines the length of pressure relief of each valve, i.e. the length of time the cam 31 is stationary, at the end of which time the cam is rotated through 90‹ and the timing circuit reset. In the event of a failure of the motor 43 to initiate a cam movement, circuit 42 will cause a warning circuit to be activated. The timing period is adjustable via arm 73. Should motor 43 take an excessive time to complete the cam movement, another timing circuit 92 will cause the warning circuit to operate. A fluid pressure failure will cause switch 88 to operate the warning circuit.
Patent GB-641792-A (GB)
Title: Improvements in or relating to electric power supply systems
Inventor: PEASE WILLIAM EDWARD
IPC: H02H3/353
Filed: 1946-12-18
Abstract: 641,792. Fault testing. STANDARD TELEPHONES & CABLES, Ltd. Dec. 18, 1946, No. 37271. [Class 37] [Also in Group XXXVII] In a phase unbalance indicating device for a delta power supply systems, Fig. 1, the phase conductors 1, 2, 3 are interconnected by resistors R1-6 shunted by condensers C1-6 'and in series with rectifiers RU1-6, so that the rectified voltages appearing across the resistors are proportional to the respective interphase voltages and are equal when the phase voltages are balanced. The rectifiers are poled so that the voltages across each resistor of a pair returned to the same phase have the same polarity, and relays A, B, C are connected respectively across the junctions of such resistor pairs and their associated rectifiers. The relays A, B, C, each have 2 sets of contacts a1, a2, b1, b2, c1, c2, series connected in pairs a1 b2, b1 c2, c1 a2, in an alarm or cut out operative circuit foreach phase, Fig. 2. The relays are inoperative when the phase voltages balance, but voltage deviation of phase 1 for example operates relays A and B leaving relay C in. operative, so that the phase 1 alarm circuit is energized. Similarly, voltage deviations of phase 2 or phase 3 operate relays B, C and A, C respectively. Explanatory vector diagrams are included. In a modification (Fig. 3, not shown), 2 relays only are employed with a 3-phase supply, and in a further modification (Figs. 4, 5, not shown), the device is applied to a 5- phase supply. The invention is also applicable to a star connected system.
Patent GB-1149217-A (GB)
Title: Process for preparing polyalkyltetralins
IPC: C07D253/07
Filed: 1966-08-22
Abstract: 1,149,217. Polyalkyl tetralins. UNIVERSAL OIL PRODUCTS CO. 22 Aug., 1966 [27 Aug., 1965; 20 Sept., 1965; 4 Nov., 1965; 24 Nov., 1965], No. 37462/66. Heading C5E. Polyalkyltetralins of formula where R is H or C 1-5  alkyl are prepared by reacting a 2,3-dimethylbutene with ½-methyl styrene (optionally containing R as a para-substituent) at 65-120‹ C. in the presence of an activated clay or a cation exchange resin as catalyst. The process is preferably carried out in a solvent, e.g. excess 2,3-dimethylbutene or an aromatic hydrocarbon. The 2,3-dimethylbutene reactant is preferably a mixture of the 1- and 2-isomers. The products may be purified by crystallization, e.g. from isopropyl alcohol. Examples describe the preparation of 1,1,3,4,4,6- hexamethyltetralin and 1,1,3,4,4-pentamethyl- 6-ethyl-tetralin.
Patent GB-1317767-A (GB)
Title: Screw cap for a container
IPC: B65D41/04
Filed: 1970-08-04
Abstract: 1317767 Screw caps H RITZENHOFF [trading as SEIDEL GEBR KG] 4 Aug 1970 [4 Aug 1969] 37631/70 Heading B8T A plastics screwcap comprises an outer sleeve with a closed end, a threaded inner sleeve, force fitted into the outer sleeve, with an integral resilient transverse sealing member defining a chamber between the sealing member and the closed end. In an embodiment, the inner thermoplastics sleeve 12, e.g. of polypropylene, has a recessed hollow frusto-conical portion 14, coacting with ribs 18 on the outer sleeve 11 (which could also be of thermoplastics material) to locate and prevent relative rotation of the sleeves, this being further improved by ribs on the contacting surfaces of the sleeves. A support-pin 15, axially aligned with the inner sleeve and within the chamber 22, may extend from either the sealing member 21 or the closed end of the outer sleeve. The sleeves are pressed together until ribs 17 abut the inner sleeve, or rim 16, upon which a decorative ring 13 may be mounted, abuts the outer sleeve. When used as a cap for a cosmetic container, chamber 22 acts as an aromatic seal.
Patent GB-622301-A (GB)
Title: Improvements in and relating to the bonding together of metals and the products of such bonding
IPC: C25D5/00
Filed: 1946-12-23
Abstract: 622,301. Electrodeposition of alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. Dec. 23, 1946, No. 37678. Convention date, Dec. 29, 1945. Drawings to Specification. [Class 41] [Also in Group XXII] In a method of bonding together layers of metals (see Group XXII), one surface of at least one of said metals is coated with a layer of copper base alloy, preferably by electrodeposition. Copper silver alloy may be deposited from a mixed alkali cyanide bath. Nickel can be codeposited with copper from solutions of the sulphates, the double sulphates or an alkali cyanide bath. Copper manganese alloy can be plated from a mixed sulphate both containing ammonium chloride.
Patent GB-905296-A (GB)
Title: Synchronous machine with salient poles
IPC: H02K9/00
Filed: 1960-11-04
Abstract: 905,296. Cooling dynamo-electric machines. BROWN, BOVERIE & CIE. A.G. Nov. 4, 1960 [Nov. 5, 1959], No. 38006/60. Class 35. The salient-pole rotor of a synchronous machine is cooled by water or other liquid flowing in hollow conductors, and excessive windage loss is prevented by closing the interpolar gaps, at least at the ends, by means of baffles extending peripherally between adjacent pole-shoe edges. Alternatively the interpolar gaps may be filled with non-magnetic material, or boxed in completely or partially by the use of end walls which may carry fan blades. The stator may also have a liquid-cooled winding and cooling tubes in contact with the stator pack. These tubes may serve to cool the air which circulates round the end-windings.
Patent GB-1025338-A (GB)
Title: Marine steam turbine propulsion plant
Inventor: HUTCHISON THOMAS BAIRD
IPC: F01K15/04
Filed: 1963-09-26
Abstract: 1,025,338. Steam turbine plant. ESSO RESEARCH & ENGINEERING CO. and PAMETRADA. March 12, 1964 [Sept. 26, 1963], No. 38013/63. Heading FIT. Marine steam turbine plant comprises high, intermediate and low pressure ahead turbine stages c, e and f respectively, high and low pressure astern turbine stages k and n respectively, a condenser g to which stages f and n are connected, and a single main boiler a for supplying superheated steam either to stage c, whence it passes by way of a reheater part d of the boiler under control of a damper n to stage e and thence to stage f, or to stage k and thence to stage m. The boiler feed water pump o, an electric generator j and an oil pump r are driven by the turbine stages; during astern operation and ahead operation at part power, their duties are taken over by a stand-by oil pump s, electric generator (not shown) and boiler feed water pump q which are operated by independent prime movers. When the engine speed drops below a certain value, these stand-by units may be operated automatically, as may the damper n to prevent overheating of the reheater d. Low pressure steam for auxiliary purposes is generated in an auxiliary boiler p which includes a heating coil through which high pressure steam from the main boiler is passed by way of a closed circuit.
Patent GB-1456465-A (GB)
Title: Gas separation
IPC: C01B13/02
Filed: 1974-09-02
Abstract: 1456465 Separating oxygen enriched gases AIR PRODUCTS & CHEMICALS Inc 2 Sept 1974 [12 Dec 1973] 38315/74 Heading B1L The method for producing an enriched oxygen product stream from a charge gas comprising oxygen and nitrogen and containing one or more minor impurities from the class consisting of water and carbon dioxide, which method comprises: (1) during an on-stream. period, (a) introducing said change gas into a first bed of adsorbent effective in adsorption of carbon dioxide and moisture; (b) discharging unadsorbed effluent from said first bed into a second bed in series with said first bed and containing an adsorbent selective in retention of nitrogen as opposed to oxygen; (c) withdrawing 'from said second bed a primary product stream having a higher oxygen concentration than the gas stream charged to said bed; (d) collecting said primary product stream in an expandable receiver; (2) discontinuing said product withdrawal from the second bed and said introduction of charge to the first bed of adsorbent and initiating description of adsorbed components from said first and second beds; said desorption being effected by: (e) applying suction at the inlet end of said first bed while maintaining flow communication between said bed and the second bed, thereby causing gases thus desorbed from said second bed to flow through said first bed and effect desorption of contained water and carbon dioxide from the first bed, the suction being applied until a desired intermediate 'bed pressure tower than the pressure prevailing in the adsorbent beds during said on-stream period is reached; (f) discontinuing flow communication between said second and first beds after a fixed period of such suction application during step (e) above, while continuing suction application to said first bed alone to attain a final pressure lower than said intermediate pressure, thereby to effect further removal of any residual moisture and carbon dioxide from said first bed; (g) during said continued suction application to said first bed alone, admitting flow of oxygen-enriched gas from said expandable receiver to said second bed to equalize pressure between said second bed and said expandable receiver; (h) thereafter discontinuing vacuum application to said first bed; (i) restoring the first bed to about atmospheric pressure by flow of gas thereto; and (j) thereafter repeating the defined cycle of operations beginning with the introduction of charge gas into said first bed.
Patent GB-1334512-A (GB)
Title: Free wheel devices
IPC: F16D41/066
Filed: 1972-08-17
Abstract: 1334512 Ratchet clutches GENERAL MOTORS CORP 17 Aug 1972 [27 Aug 1971] 38399/72 Heading F2C An overrunning clutch has an inner race, the outer surface of member 10, with a central groove in which a split ring 18 is fitted, and an outer race in which rollers 36 are received in recesses each having a ramp surface 34. On clockwise rotation of the inner race the ring 18, in slip engagement with the inner race 10, causes the rollers 36 to move to engage the clutch, compressing ring 18 into its groove. On anticlockwise rotation of the inner race 10 the rollers are moved to the disengaged position shown in which frictional engagement with the sides 32 and ramps 34 is sufficient to prevent the rollers from rotating due to the friction of the ring 18, which is stated to prevent wear of the rollers. Another embodiment (Fig. 3, not shown) has each roller biased towards the engaged position.