baber/WOPTO huggingface dataset:
Patent GB-281795-A (GB)
Abstract: 281,795. British Dyestuffs Corporation, Ltd., Payman, J. B., and Wignall, H. Sept. 20, 1926. Sulphonamidoarylides of 2:3-oxynaphthoic acid are prepared by condensing the latter with aromatic sulphonamides containing nuclear primary or secondary amino groups. The hydrogens of the sulphonamide groups may be substituted by hydrocarbon radicals. In an example, 2 : 3- oxynaphthoic acid is condensed with aniline-msulphonamide by means of phosphorus trichloride. Instead of the latter other substances which convert the acid into the chloride mav be used. Aniline m-sulphonanilide, o-toluidine-4-sulphonamide, p-toluidine,-3-sulphonanilide, methylaniline-4-sulphonamide and ethyl-o-toluidine-4-sulphonanilide are also mentioned as suitable sulphonamides which may be used in the process. p-Toluidine-3-sulphonanilide is made from aceto-p-toluidide by sulphonation, conversion by phosphorus trichloride into aceto-p-toluidide-3- sulphonyl chloride, condensation with aniline and removal of the acetyl group by hydrolysis. Methylaniline-4-sulphonamide is obtained by the action of ammonia on methylaniline-p-sulphonylchloride, which is produced by treatment of the acid with phosphorus pentachloride. Ethyl-o-toluidine-4-sulphonanilide is obtained by sulphonating ethyl-o-toluidine with oleum, converting the acid into the sulphonyl chloride and condensing with aniline.
Patent GB-1048499-A (GB)
Title: Improvements in or relating to regenerative heat exchangers
IPC: F28D17/02
Filed: 1965-07-02
Abstract: 1,048,499. Mechanical seals. H. BRANDT, and A. KRITZLER, [trading as APPARATEBAU ROTHEMœHLE BRANDT & KRITZ. LER]. July 2, 1965 [July 17, 1964 (2)], No. 28215/65. Heading F2B. [Also in Division F4] In a thermal regenerator (8ee Division F4) wherein a resiliently mounted rubbing seal is provided between the open end of a rotary gas duct and the end face of a heat transfer matrix, the sealing member (not shown) is carried by a frame 32 which is joined to the end of the rotary duct 31 by an expansion member comprising two thin (e.g. 0À3 mm.) sheets 62, 63 of flexible resilient material, e.g. spring steel, each having one edge 64, 65 clamped to the duct 31 or frame 32 respectively, and each having its free edge 66, 68 engaged in a pocket formed by the clamped edge 65, 64 of the other sheet and a further sheet 67, 69 respectively. To allow greater flexibility, the expansion member may be divided into a plurality of units angularly spaced around the air duct, and each having the cross-section shown. The opposed ends of adjacent units are joined together by a U-shaped connecting element 70 having pockets therein at each side to receive the ends of the units (Fig. 5, not shown).
Patent GB-207668-A (GB)
Title: Composition for rustic flower vase
IPC: C04B26/26
Filed: 1922-10-18
Abstract: 207,668. Carter, W. H. Oct. 18, 1922. Coating-compositions applied melted.-A composition to be applied to flower vases &c. to give a " rustic " effect consists of 10 parts of bitumen, 5 parts of coke dust, and 1 part of sand, boiled together and applied while hot.
Patent GB-1273782-A (GB)
Title: Improvements in or relating to protective circuits
IPC: H02H9/02
Filed: 1969-06-04
Abstract: 1,273,782. Electric correspondence control. SPERRY RAND CORP. June 4, 1969 [June 14, 1968], No.28257/69. Heading G1N. A synchro transmitter 11 and receiver 12 are connected through power amplifiers 16, 17, the currents supplied to which amplifiers from a source 22 are fed through a duty cycle current limiter circuit 23 which isolates the amplifiers from the supply for a predetermined interval if the current flow between the transmitter and receiver exceeds a threshold value for a second predetermined interval. In use, a change in transmitter rotor angle from # 1  to # 2 , graph A, Fig. 2, causes current flow in excess of a threshold value, shown dotted in graph B thus the protection circuit 23 is actuated to apply an intermittent torque graph C, to the receiver rotor. It is stated that the duty cycle of the circuit 23 is predetermined in accordance with the inertia of the receiver rotor and the power ratings of the electrical components of the apparatus with the result that the rotor movement is continuous, see graph D, Figs. 4, 6 (not shown) give details of circuits. The protection circuit is responsive to isolate the amplifiers in the event of failure of the signal from the transmitter.
Patent GB-723188-A (GB)
Title: Improvements in non-refillable closures
IPC: B65D49/06
Filed: 1952-11-10
Abstract: 723,188. Non-refillable bottles &c. INTERSEAL CORPORATION. Nov. 10, 1952 [Nov. 16, 1951], No. 28287/52. Class 125 (1). [Also in Group XXIX] A non-refillable closure for containers comprises a valve 31 freely reciprocable within a casing 10 and engaging a seat 36, either the valve or its seat being made of an easily deformable resilient material and having a normally open passage 38 of small cross sectional area extending across the seating zone 37, which passage is constricted or closed when the valve members are forced together. Vacuum developing in the bottle due to drop in temperature is thus broken when the cap 23 is removed, allowing of easy pouring, while the forcing of liquid into the bottle through the passage is prevented. The casing 10 is inserted into the neck of a bottle 11 and has ribs 14 forming a guide for the valve 31 held on its seat by a ball weight 35. A cover 17 secured by a ferrule 18 spun over a rib 19 on the bottle neck holds the casing 10 in place and has ribs 26 supporting a guard plate 25 with side openings 27 and a central opening in which slides a button or fly trap 30 with ribs 29. When the bottle is inverted the weight 35 falls away from the valve 31 and forces the button 30 outwardly allowing pouring between the ribs 14, 26, 29. The passage 38 may be in the form of a helix across the sealing zone of the valve. The casing 10 may be made of polystyrene and the valve of polyethylene, the passage being formed in the polyethylene. Specifications 633,436, 701,365 and U.S.A. Specification 2,278,924 are referred to.
Patent GB-1298027-A (GB)
Title: Improvements in or relating to classifiers
Inventor: SIDEBOTTOM JOHN BUCKLEY
IPC: B03B5/66
Filed: 1970-06-11
Abstract: 1298027 Valves WILKINSON RUBBER LINATEX Ltd 28 May 1971 [11 June 1970] 28391/70 Heading F2V [Also in Division B2] A composite plate 3 at the bottom of the sorting column of a hindered settling classifier comprises a rigid, flow-defining perforated plate member 9 on an upper side of which is arranged at least one sheet 12 of a flexible material which covers the perforations 16 in the plate member, the sheet 12 having, at each region where it overlies a perforation 16, a plurality of slits 13 such that in use water can pass upwardly through each perforation and through the slits by virtue of the latter opening upon upward flexing movement of the flexible material, and such that when not in use the material 15 to be classified can rest on the sheet 12 and close the slits 13 to prevent the material 15 lodging in the perforations 16 of the plate member 9. The sheet 12 is sandwiched between the plate member 9 and an upper perforated plate member 10 to which it may be bonded. If the plate member 10 has larger perforations 17 which overlie and completely overlap the perforations 16 in the plate member 9. Pressure beadings 14 are provided to isolate pairs of perforations 16 and 17 and prevent flow of water in a horizontal direction between the plate members 9 and 10.
Patent GB-1438188-A (GB)
Title: Gentamicin derivatives and a process for the preparation thereof
IPC: A61P31/04
Filed: 1973-06-14
Abstract: 1438188 Gentamicin C 1  derivatives BRISTOL MYERS CO 14 June 1973 [26 June 1972] 28396/73 Heading C2C Compounds of formula X wherein one of R and R<SP>1</SP> is L-(-)-γ-amino-α- hydroxybutyryl and the other is hydrogen, are prepared by acylating the 1 or 2<SP>1</SP> amino function of gentamycin C 1  to introduce a γ-amino-α- hydroxybutyryl moiety which is optionally N- blocked and removing the blocking group, if present, by known methods. Compounds of Formula X wherein one of R and R<SP>1</SP> is L-(-)-γ- benzyloxy - carbonylamino - α - hydroxybutyryl and the other is hydrogen are prepared by reacting gentamycin C 1  with the N-hydroxysuccinimide ester of L-(-)-γ-benzyloxycarbonylamino-α-hydroxybutyric acid. L-(-)-γ-amino-α-hydroxybutyric acid is prepared by refluxing Ambutyrosin A with NaOH solution and neutralizing with HCl. Dehydroabietylammonium L - α - hydroxyy-phthalimidobutyrate is prepared by reacting 2-hydroxy-γ-phthalimido-butyric acid with dehydroabietylamine, and the product is treated with sodium carbonate dissolved in water in the presence of ether. HCl is added, phthalic acid removed and L-(-)-γ-amino-α-hydroxybutyric acid recovered by adsorption and elution. L - (-) - γ - benzyloxycarbonylamino - α- hydroxybutyric acid is prepared by reacting L - (-)- γ - amino - α - hydroxybutyric acid with carbobenzoxy chloride in the presence of NaOH, and the product is esterified with N- hydroxysuccinimide in the presence of dicyclohexylcarbodiimide. The compounds of formula X wherein one of R and R 1  is L-(-)-γ-amino-α-hydroxybutyryl and the other is hydrogen are useful as antibacterial agents, animal feed additives and therapeutic agents for animals and man.
Patent GB-1444660-A (GB)
Title: Method of producing sodium hydroxide
IPC: C01D1/42
Filed: 1974-06-27
Abstract: 1444660 Sodium hydroxide PPG INDUSTRIES Inc 27 June 1974 [28 June 1973] 28529/74 Heading C1A Caustic soda prills are produced from mercury cell aqueous caustic soda containing mercury and less than 0À005 weight per cent, anhydrous basis, of sodium chloride by maintaining the mercury content below 0À10 parts per million, anhydrous basis, adding sufficient sodium chloride to provide a sodium chloride content greater than 0À05 weight per cent, anhydrous basis, forming substantially anhydrous caustic soda before or after addition of sodium chloride and prilling it. The sodium chloride content may be maintained at from 0À05 to 0À15 weight per cent, anhydrous basis. The aqueous caustic soda may be prepared by feeding brine to an electrolytic cell having a flowing mercury amalgam cathode and recovering mercurysodium amalgam, which may in turn be fed to a denuder and aqueous caustic soda recovered. Mercury may be removed electrolytically from the caustic soda solution.
Patent GB-327715-A (GB)
Title: Improvements relating to the treatment of hydrocarbon gases
IPC: C07C2/00
Filed: 1928-10-05
Abstract: 327,715. Anglo-Persian Oil Co., Ltd., Dunstan, A. E., and Wheeler, R. V. Oct. 5, 1928. Aromatic hydrocarbons. - Paraffin or olefine hydrocarbon gases are treated in the manner described in Specification 309,455 for the production of aromatic hydrocarbons. The residual gas is used for the production of other organic bodies or carbon black. A gas such as carbon monoxide may be added to the residual gas and the mixture used for the production of oxygenated derivatives of the hydrocarbons.
Patent GB-164663-A (GB)
Title: Improvements in or relating to steam and like traps
IPC: F16T1/06
Filed: 1920-10-09
Abstract: 164,663. Trane, B. N. Oct. 9, 1920. Steam traps; thermostats.-A steam-trap 1 is fitted with two Y-shaped bi-metallic blanks 16<y>, 16<x> bent into circular form, the corresponding arms of the blanks being connected rigidly together and the lugs being connected respectively to a valve 23 and a support 18. Preferably the valve 23 has a spherical seat and the support 18 is pivotally suspended from an adjusting-screw 11, the opening in the top of the arms 18 being large enough to permit universal movement within limits. In a modification, two large pairs of blanks are shown fitted in series so that the effect is cumulative. The device is applicable to radiators.
Patent GB-1470837-A (GB)
Title: Preparation for treating psoriasis and other dermatological diseases with increased epidermal proliferation
IPC: A61K31/05
Filed: 1974-06-28
Abstract: 1470837 Topical preparations containing phenanthrene compounds PHARMACIA AB 28 June 1974 [29 June 1973] 28738/74 Heading A5B Preparations for the treatment of psoriasis and other dermatological diseases with epidermal proliferation comprise 0.1 to 10% of a phenanthrene compound having the formula: wherein R, and R, are each hydrogen, methyl, ethyl, propyl, isopropyl, halogen and methoxy; or non-toxic acyl derivative thereof e.g. acetyl and propionyl derivatives, and a dermatologically acceptable carrier, the per cent being calculated on the total weight of the preparation. The compound is preferably 1- or 2- phenanthrol. The preparation may be in the form of an ointment, liniment, solution, emulsion, cream, powder or paste.
Patent GB-392531-A (GB)
Title: Process for the production of distributable and non-caking fertilisers containing calcium nitrate
IPC: C05C5/00
Filed: 1931-10-16
Abstract: Strewable, non-caking fertilizers containing or consisting of calcium nitrate are obtained by evaporating calcium nitrate solutions to a sandy-pasty consistency containing 90-95 per cent calcium nitrate, and thereupon converting the mass into a granular form, without further substantial concentration, by mechanical disaggregation at a temperature of from 50-100 DEG  C.  The evaporation process, preferably at its end phase, for example, after concentration to 75 per cent, may be carried out in vacuo in a kneading machine.  Other fertilizers, such as potassium chloride, nitrate and phosphate or mixtures thereof, may be added to the calcium nitrate, such salts as react with calcium nitrate being added after concentration to 90-95 per cent and before or during the mechanical disaggregation. Examples relate to the treatment of calcium nitrate solutions obtained by dissolving acetylene mud or limestone in nitric acid.ALSO:Strewable non-caking fertilizers containing calcium nitrate are obtained by evaporating calcium nitrate solutions to a sandy-pasty consistency containing 90-95 per cent calcium nitrate, and thereupon converting the mass into a granular form, without further substantial concentration, by mechanical disaggregation at a temperature of from 50-100 DEG  C.  The evaporation process, preferably at its end phase, for example, after concentration to 75 per cent, may be carried out in vacuo in a kneading-machine. Other fertilizers, such as potassium chloride, nitrate and phosphate or mixtures thereof, may be added to the calcium nitrate, such salts as react with calcium nitrate being added after concentration to 90-95 per cent and before or during the mechanical disaggregation.
Patent GB-1447502-A (GB)
Title: Method of preparing direct-positive silver halide elements
IPC: G03C1/485
Filed: 1973-06-18
Abstract: 1447502 Direct positive emulsions AGFAGEVAERT 6 June 1974 [18 June 1973] 28769/73 Heading G2C A method of making a direct-positive photographic silver halide material comprises blending two or more direct-positive silver halide emulsions of different average grain-sizes comprising fogged silver halide grains and having pAg values below 8À35, raising the pAg to a value of at least 8À35 before or after blending the emulsions and providing at least one electron-accepting is halogenconducting compound at the surface of the fogged grains into the separate emulsions or into the emulsion blend prior to raising the pAg to the value of at least 8À35, and applying the resulting emulsion blend on to a support to form a lightsensitive layer thereon. The emulsion pAg before blending is suitably 5À5 to 7À7 and, after blending, in the range from 9 to 11. Raising of the pAg can be achieved by addition of a compound yielding bromide and/or iodide ions. Suitably one emulsion has an average grain size of at least 50% greater than another emulsion of the blend. The grains can have been fogged by reduction sensitization. Suitable halogen-conducting compounds are dimethine and tetramethine merocyamine dyes. Lists of electron-accepting compounds are also provided. The separate emulsions have a mean grain diameter less than 2Ám, preferably 0À2 to 1Ám. The grains may be cubic, octahedral or rhombohedral. Sensitizing dyes and colour couplers can also be incorporated.
Patent GB-649977-A (GB)
Title: Improvements in or relating to split clips
IPC: B62J13/04
Filed: 1947-10-29
Abstract: 649,977. Band clips. EDSONS (BIRMINGHAM), Ltd., and ORTON, E. Oct. 29, 1947, No. 28831. [Class 44] In a split clip formed of two component parts A, B, each having a curved strip or band 1 forming an encircling member and each having radial lugs 2, 2a, at each end for fastening the parts together by means of bolts 6 or pins passing through opposed lugs on each side of the clip, each radial lug 2a is extended to form support arms 5 for attaching a chain case or the like, each arm being of channel shape with, the edges of the side walls 3a of the channel forming part of the encircling band and the ends of lugs 2 being provided with tongues 4 for' bearing on the bottoms of the channel shaped arms 5. The lugs 2 have side flanges 3 which engage over the outside of the side walls 3a and elongated recessed portions 7 are formed in the lugs 2a to receive the heads of the bolts 6 to prevent them turning.
Patent GB-1170381-A (GB)
Title: Heel Stiffeners
Inventor: WILLEY SALLY MARGARET
IPC: A43B23/17
Filed: 1967-06-22
Abstract: 1,170,381. Boots &c. S. M. WILLEY. 19 June, 1968 [22 June, 1967], No. 28831/67. Addition to 1,088,685. Heading A3B. The U-shaped heel stiffener 11 of the parent Specification is modified by the addition of an upstanding peg or projection 15 which serves to tension the heel wall or quarter C along the top line B of the shoe. The projection 15 is inclined rearwardly and pulls the quarters C so that the top line edges B are drawn towards each other and define straight lines converging towards the projection 15. The U-shaped strip 11 and projection 15 may be integral and may be made of an acetal resin material. .
Patent GB-1463929-A (GB)
Title: Explosive compositions
IPC: C06B47/14
Filed: 1975-07-09
Abstract: 1463929 Explosive compositions AE & CI Ltd 9 July 1975 [19 July 1974(3)] 28867/75 Heading C1D An explosive slurry composition comprising an inorganic oxidizing salt, a fuel, and a liquid phase, includes as a sensitizing component a soluble nitramine, nitramine salt, or mixture thereof. Suitable nitramines contain up to four carbon atoms and may be primary or secondary nitramines or primary dinitramines. In examples the nitramine used is methylnitramine, other ingredients being water, ammonium nitrate and sodium nitrate as oxidizing salts, urea, aluminium powder, or ethylene glycol as fuels, guar gum as thickener, and potassium pyroantimonate, zinc chromate, or sodium dichromate as cross-linking agents. In order to aerate the composition, there may be added hollow glass particles, sodium nitrite or thiourea as a chemical gassing agent, or a surfactant comprising a mixture of ethoxylated ammonium lauryl sulphate and arachidyl and behenyl amines. Other ingredients referred to are xanthan gum and potassium dichromate.
Patent GB-536173-A (GB)
Title: Improvements in or relating to the production of composite refractory articles
IPC: B28B1/26
Filed: 1939-10-27
Abstract: 536.173. Casting refractory articles. HARTFORD-EMPIRE CO. Oct. 27, 1939. No. 28875. Convention date, Sept. 7. [Class 87 (ii)] A composite refractory article is formed by casting a slip for the outer layer in a plaster mould, allowing the slip to set to form a shell of the desired thickness, withdrawing surplus slip and casting within the shell a slip of different composition for the interior of the article. As shown applied to a glass feeder tube, a shell 18 is first formec between a plaster core 15 anc mould 13 the surplus slip being removed by inverting the mould after which the mould is reinverted and the slip for the interior 19 is introduced through a pair of funnels 16 sufficient being allowed to remain in the funnels to compensate for shrinkage. When the interior slip has set, the top 14 of the mould is removed, the core 15 is withdrawn and the composite article removed by inverting the mould upon a support and raising mould. The outer layer is formed of a composition having a higher coefficient of expansion than the inner layer, in particular, tabular corundum. The interior may be of a similar composition or may comprise a corundum dispension or powder, 1 cc. kaolin and ball clay with a trace of aluminium powdeer to form a porous interior. Examples of compositions for the outer layer and interior are given.
Patent GB-767011-A (GB)
Title: Improvements relating to the preparation of plaster and water mixes in the manufacture of potters' moulds
Inventor: JOHNSON JOHN ARTHUR
IPC: B01F15/02
Filed: 1953-10-20
Abstract: 767,011. Batch mixing-machines. SERVICE (ENGINEERS), Ltd. Oct. 18, 1954 [Oct. 20, 1953], No. 28893/53. Class 86 In an apparatus for making plaster mixes containing accurately determined amounts of plaster and water for the manufacture of potters' moulds, the dry plaster is fed by a bucket elevator 26 into a hopper 15 which tapers downwardly to an outlet 14 controlled by a valve 21, the outlet being positioned over the platform 11 of a weighing machine having a dial indicator 12 so that a weighed amount of plaster can be run into a mixing vessel 13 on the platform, a water pipe 24 having a valve 25 being disposed beside the outlet to allow the predetermined proportion of water to be added. To prevent consolidation of the plaster in the hopper and to maintain its flow through valve 21 when the latter is opened, the hopper is provided with an agitating mechanism consisting of a centrally-positioned shaft 17 carrying stirring blades 18 and rotated by a motor 20.
Patent GB-1183046-A (GB)
Title: Novel Heterocyclic Compounds
Inventor: RITCHIE ALEXANDER CRAWFORD
IPC: C07D213/26
Filed: 1966-06-28
Abstract: 1,183,046. Pyridinium salts. ALLEN & HANBURYS Ltd. 20 June, 1967 [28 June, 1966], No. 28898/66. Heading C2C. Novel pyridinium salts of the formula (wherein R 1  is phenyl which may be substituted by alkyl, alkoxy, OH, NO 2 , NH 2 , NH alkyl, aralkyl or CF 3  radicals or halogen atoms; R 2  is alkyl but is not CH 3  when R 1  is unsubstituted phenyl, or is alkenyl, alkynyl, aralkyl, phenyl, nitrophenyl or heterocyclic, or is a radical -alk-Y in which -alkis C 1-6  alkylene and Y is a halogen or the group -COR 3  in which R 3  is alkyl, OH, alkoxy, NH 2  or NH alkyl, or Y is -OR 4  in which R 4  is H, alkyl, aralkyl or aryl, or Y is -NR 5 R 6  in which R 5  and R 6  are H, alkyl, aryl or aralkyl; and Z is a pharmaceutically acceptable anion but is not I- when R 1  is phenyl and R 2  is ethyl) and inner salts thereof are prepared by quaternization of the corresponding N-unsubstituted-4-phenyl-pyridines. Z groups may be exchanged by metathesis. Products wherein R 2  is alkoxycarbonylalkyl may be hydrolysed to give products wherein R 2  is carboxyalkyl, products wherein R 2  is 2,4-dinitrophenyl may be reacted with aniline to give products wherein R 2  is phenyl and products in which R 1  contains alkoxy groups may be reacted with glacial acetic acid and HBr to convert these groups to OH groups. The pyridinium salts of the invention, which are stated to produce an effect on the cardiovascular system, eg. they possess antihypertensive activity arid block or stimulate autonomic ganglia, may be made up into pharmaceutical compositions, e.g. tablets, capsules, suppositories or injection solutions, with suitable carriers.