baber/WOPTO huggingface dataset:
Patent GB-936799-A (GB)
Title: Improvements in and relating to monoazo dyestuffs of hydroxy indazoles
Inventor: SUREAU ROBERT FREDERIC MICHEL
IPC: C09B29/36
Filed: 1959-10-01
Abstract: The invention comprises dyes of formula <FORM:0936799/IV(a)/1> where X is H or Cl, Y is H or Alk, A is an anion and Z is the residue of a primary phenylamine which may be unsubstituted or contain non-water-solubilizing substituents.  The dyes are made, in conventional fashion, by quaternating dyes obtained from appropriate diazotized phenylamines and heterocyclic coupling components.  A change in anion may be obtained on treatment with a salt.  Z may be substituted with non-solubilizing groups e.g. halogen, nitro, acylamino, trifluoromethyl, alkyl, alkoxy, mono-or di-dialkylamino, sulphonamido and carbonamido groups.  Indicated anions are halides, sulphate, aryl-sulphonates, chloracetyl and trichloracetyl anions. The dyes, or their addition compounds with zinc chloride, colour tanned cotton, silk, leather and polyacrylic fibres in yellow, orange and red shades.  In examples, which illustrate the preparation of the dyes and their use in colouring polyacrylic fibres, representative of diazo components used are aniline, o-toluidine, 4-chloro-2-amino-anisole, p-nitraniline, m-trifluoromethylaniline, 3-amino4-methoxy-benzamide and aniline-m-sulphonamide, the coupling components being 6-hydroxy-indazole and its 2-methyl and 5-chloroderivatives, and the quaternary salts are the methosulphate and p-toluene-methyl sulphonate.
Patent GB-409808-A (GB)
Title: Improved harrow
IPC: A01B19/02
Filed: 1932-11-24
Abstract: 409,808. Implements for working land. BAKER & SONS (COMPTON), Ltd., and BAKER, D. T., Whitehall Ironworks, Compton, Berkshire. Nov. 24, 1932, No. 33299. [Class 6 (i).] A harrow comprises a draw bar or draw-bar frame a, independent tine bars c pivotally attached thereto for vertical movement, a tine or tines d extending downwardly and forwardly from each tine bar, and a depth regulator e extending downwardly and rearwardly from each tine bar but in advance of the associated tine. The draw-bar frame a is provided with wheels g and a skid or runner b. The tine bars c may be double, being made of steel strip and of Y-form so as to have a twopoint support on the draw bar. The tines d may be pivoted on the bars c and supported by links f adjustably connected to the bars c by pins passing through selected holes. The depth regulators e may be similar to the tines, with or without pointed ends. They may be adjustably clamped in the double bars c by bolts h, or secured by pins passing through selected holes. The tines and regulators may be interchangeable, and their edges may be rounded. The tines may be staggered, and means may be provided for lifting them. The bars c may be connected to the draw bar by slotted connections to allow of lateral swinging. For transport they may be folded back upon a cross-bar on the frame a.
Patent GB-782091-A (GB)
Title: Improvements in or relating to the measurement of electrical resistance
Inventor: STRAUB HERMANN
IPC: G01L1/22
Filed: 1953-12-01
Abstract: 782,091. Electrical measuring-apparatus. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. Dec. 1, 1953, No. 33403/53. Class 37. Portable apparatus for measuring resistance e.g. of a strain gauge, comprises a hinged box having several amplifier units 15-20 (Fig. 1) located in the bottom part 2, and a lid 1 on which are mounted resistance bridges 5, 6, 7, each consisting of four strain gauge type resistors 12, 12<SP>1</SP>, 26, 26<SP>1</SP> (Fig. 3) assembled on leafsprings 11, 13, whose tensions are adjustable by clamping bolts 8, 9, 10, each resistor 12, 121, 26, 261 being brought out separately to terminals (not shown). When making a measurement one or more of the resistors 12, 12<SP>1</SP>, 26, 26<SP>1</SP> in a chosen bridge 5, 6 or 7 are replaced by the resistor to be measured, and the bridge is connected by a plug to a chosen amplifier 15-20. To produce lightness and stability the amplifiers have sub-miniature valves and printed circuits.
Patent GB-1091042-A (GB)
Title: Production of esters
Inventor: BREWIS SELVYN
IPC: C07C69/54
Filed: 1964-08-17
Abstract: Esters of saturated and unsaturated monocarboxylic acids are prepared by reacting vinyl halide with an alkyl or cycloalkyl hydroxy compound and carbon monoxide at a pressure of at least 50 atmospheres in a reaction medium which comprises in solution (a) a noble metal, and (b) bromide and iodide ions.  Examples describe the preparation of butyl acrylate and propionate, and cyclohexyl propionate and acrylate, using palladium, platinum, and ruthenium.
Patent GB-1057803-A (GB)
Title: Improvements in or relating to glass
IPC: C03C4/12
Filed: 1963-08-23
Abstract: A glass suitable for use in the manufacture of stud body lasers consists of a borosilicate glass containing less than 10% by weight of alumina, more than 50% but less than 60% by weight of silica and containing Nd2O3 in an amount up to 8% by weight of the borosilicate glass.  The borosilicate glass may be in weight percentages: SiO2 58.6; B2O3 19.6; Al2O3 1.4; ZnO 5.8; Na2O 14.2; As2O3 0.4.  A laser glass is given as SiO2 57.5; B2O3 19.2; Al2O3 1.4; ZnO 5.7; Na2O 13.9; Nd2O3 2.0; As2O3 0.3, emitting coherent radiation of 1.06 micron wavelengths.ALSO:A glass suitable for use in the manufacture of solid body lasers consists of a borosilicate glass containing less than 10% by weight of alumina, more than 50% but less than 60% by weight of silica and containing Nd2O3 in an amount of up to 8% by weight of the borosilicate glass.  The borosilicate glass may be in weight percentages: SiO2 58.6; B2O3 19.6; Al2O3 1.4; ZnO 5.8; Na2O 14.2; As2O3 0.4.  A laser glass is given as SiO2 57.5:  B2O3 19.2; Al2O3 1.4; ZnO 5.7; Na2O 13.9; Nd2O3 2.0; As2O3 0.3.
Patent GB-1090669-A (GB)
Title: Fatty acid ester resins and the use in binder compositions, dilutable with water
IPC: C09D163/02
Filed: 1965-08-05
Abstract: A fatty acid ester resin containing free carboxyl groups is obtained by reacting at most 65% of the carboxyl groups of a poly-carboxylic acid or intramolecular anhydride thereof with a hydroxy-containing fatty acid ester of an aromatic compound having a plurality of hydroxyl functions, either as hydroxy groups or as epoxy groups, and no polyester group.  Preferred hydroxy-containing fatty acid esters are partial fatty acid esters of styrene-allyl alcohol copolymers, and partial fatty acid esters of epoxy resins, e.g. partial fatty acid esters of polyglycidyl-polyhydroxy - ethers of polyhydric phenols. The polyhydric phenol may be bisphenol A which may be reacted with epichlorohydrin to form the epoxy resin.  In the examples, linseed oil fatty acid and coconut oil fatty acid are the fatty acids employed and the polycarboxylic acids or anhydrides employed are phthalic, maleic and trimellitic anhydrides and itaconic and succinic acids.  A binding agent, dilutable with water, may be prepared by neutralizing at least 60% of the free carboxyl groups of the fatty acid ester resin, for instance with aqueous solutions of sodium hydroxide, ammonia, 2-amino-1 butanol, tri-ethylamine, triethanol amine or morpholine. To increase the solubility a lyotropically active agent, e.g. butanol, pentanol or butoxyethanol, may be added.  The binding compositions may be used as such or mixed with other known binder compositions.
Patent GB-368704-A (GB)
Title: Improvements in or relating to apparatus employed for the casting of concrete walls in situ
IPC: E04G11/22
Filed: 1930-11-08
Abstract: 368,704. Casting walls in situ. SMITH, L., 29, Brunswick Terrace, Leeds. Nov. 8, 1930, No. 33652. [Class 20 (ii).] Walls are cast in situ course by course by means of moulding apparatus adapted to be lifted on a standard and rotated horizontally to allow of the casting of consecutive portions. A standard 3 is mounted in ball or roller bearings at its ends and is stayed in any vertical position. A bracket 15 is slidably mounted on the standard and carries a framework 32, projecting on both sides of the standard, for the shuttering, and worm and pulley gearing in a box frame 16 whereby the bracket and framework may be raised after each casting operation. Shutters 40 are hinged to the framework to form a partition mould 41 and transverse shutters 59, 71, 60 are also carried on the framework for casting the wall sections. The framework also carries a support 37 bearing a hopper and shoot 87, 88, and a trough 38 and these are counterbalanced bv a water tank 35 carried on the other end of the framework. The trough 38 is formed of removable sections so that concrete may be fed to the transverse moulds or to any part of the partition mould, this trough being supplied from an elevator 95. The transverse moulds may be stopped off by either hinged or sliding stop plates, and after the casting operation, the side plates are raised and the moulds rotated to cast another section. After each course has been cast, the moulds are raised and positioned by a movable stop 99 on the standard. The side moulds are retained in casting position by means of adjustable stays 44, Fig. 6, and scaffold supports 48 are provided for the workmen. The section moulds may be of partly polygonal shape for casting walls other than circular.
Patent GB-174268-A (GB)
Title: Improvements in flexible shingles
IPC: E04D1/22
Filed: 1920-11-29
Abstract: 174,268. Griswold, A. A., and Chevalier, J. F. Nov. 29, 1920. Roofing and facing tiles.-Roof and wall shingles of diamond shape are made of flexible material such as paper or felt, and are provided on the lower corner with a fastening permanently secured to the shingle before being laid and without penetrating therethrough. The fastening comprises side arms 14, a neck 13, a shank 10 with prongs 12 which are embedded in the thickness of the shingle, and side pieces 15 which are bent over the edge as clamps. A shingle so provided is laid over the junction of two slates in the course below, and is then moved upwards so that the arms 14 lie under the two lower slates and the neck 13 lies between them. Nails 16 are fixed in the sides.
Patent GB-1045979-A (GB)
Title: Improvements in or relating to 5,10-seco-5,19-cyclo-10-fluoro-steroids
IPC: C07J67/00
Filed: 1963-08-26
Abstract: The invention comprises compounds of the formulae <FORM:1045979/C2/1> <FORM:1045979/C2/2> <FORM:1045979/C2/3> <FORM:1045979/C2/4> wherein R is hydrogen or a hydrocarbon carboxylic acyl radical of less than 12 carbon atoms which may be substituted; R1 is hydrogen, alkyl, alkenyl or alkynyl of at most 6 carbon atoms; Z is a single or double bond between C-1 and C-2 and Z1 is a single or double bond between C-6 and C-7, with at least one of Z and Z1 being a double bond; and Y is hydrogen, b -hydroxy or keto.  The androstane derivatives are prepared by dehydrogenation of 5,10-seco - 5,19 - cyclo - 10b  - fluoro - D 4 - androsten-17b -ol-3-one or the 17a -R1 homologues thereof. The D 1,4-compounds are prepared by refluxing these starting materials with selenium dioxide in t-butanol in the presence of pyridine or with 2,3 - dichloro - 5,6 -dicyano - 1,4 - benzoquinone, and on a second dehydrogenation with chloranil in t-butanol or with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, these are converted to the D 1,4,6-compounds.  When the reaction with chloranil is effected first the D 4,6-compounds are obtained.  The same starting materials or the corresponding 3,17-dione yield on reduction, preferably with lithium aluminium hydride in tetrahydrofuran, the corresponding 3,17-diols, which on dehydration with aqueous acetic acid at 75 DEG to 100 DEG  C. yield the D 3,5-3-unsubstituted compounds.  The pregnane derivatives of formulae <FORM:1045979/C2/5> <FORM:1045979/C2/6> are prepared by similar processes from 5,10-seco - 5,19 - cyclo - 10b  - fluoro - D 4 - pregnene-3,20-dione, the 3,20-diols obtained in the reduction with lithium aluminium hydride being subsequently re-oxidized in the 20-position. The 17,21-dihydroxy-pregnane derivatives of formulae <FORM:1045979/C2/7> <FORM:1045979/C2/8> are prepared similarly from 21-monoesters of 5,10 - seco - 5,19 - cyclo - 10b  - fluoro - D 4-pregnene - 17a ,21 - diol - 3,20 - dione which may be 11-substituted.  Here, the side chain may also be protected as a 7,20:20,21-bismethylenedioxy group and 11b -ol products may be oxidized to the 11-ones.  Elimination of the 21-hydroxy group from these products by conversion to the 21-tosylates and subsequent refluxing with sodium iodide in acetic acid gives products of the formulae <FORM:1045979/C2/9> <FORM:1045979/C2/100> All the free ols so produced may be esterified by standard procedures, a list of esterifying acids being provided. Examples are given.  5,10 - Seco - 5,19 - cyclo - 10b  - fluoro - D 4 -pregnene - 11b ,17a ,21 - triol - 3,20 - dione 21- acetate is prepared by oxidizing 17,20:20,21-bismethylendioxy - 5,10 - seco - 5,19 - cyclo-10b  - fluoro - D 4 - pregnene - 3b ,11b  - diol to the corresponding 3-one, hydrolysing this to the free 11b ,17a ,21-triol-3,20-dione, and acetylating this.
Patent GB-326826-A (GB)
Title: Improvements in or relating to apparatus for use in telephone systems
IPC: H04M1/52
Filed: 1928-11-19
Abstract: 326,826. Pollak, J. E., (Associated Telephone & Telegraph Co.). Nov. 19, 1928. Intercommunication systems; desk and table sets.-In a rotary selecting switch for intercommunication systems, which is preferably such that it is interchangeable with a dial switch on a standard automatic telephone instrument case, the control knob, after being depressed to signal the wanted station, is held in a partially depressed position under control of the switchhook. To make a call, the subscriber lifts his receiver and rotates the knob 13 until the pointer 53 points to the station required. The knob is then pressed axially, bringing the contact spring 14 against the appropriate stud 40, and forcing a projection 61 on the bridge piece 15 into contact with the metallic ring 62 to complete the signalling circuit. When the knob is released, the catch 38 on the end of the arm 32 enters the groove 22 in the shaft 10 and prevents the complete return of the knob under the action of the spring 33, the spring 14 being held against the stud 40 to maintain the talking circuit. On hanging up, the rod 34 is depressed against the arm 32, and the catch 38 is withdrawn to allow the knob to return to normal. The projection 60 on the bridge piece 15 when the knob is depressed enters one of the correspondingly shaped recesses 41 in order to locate the contact spring 14 accurately on a stud.
Patent GB-810571-A (GB)
Title: Improvements in or relating to the ozonisation of olefinically unsaturated fatty acids and products obtained thereby
Inventor: BLACKMORE RICHARD LYE
IPC: C07C51/34
Filed: 1956-11-07
Abstract: The ozonolysis of olefinically unsaturated fatty acids insoluble or sparingly soluble in water is effected by passing ozonized air or ozonized oxygen into an aqueous dispersion of the acid.  The dispersion so obtained may be treated with an hydrolytic agent and while the hydrolysis product is still in the form of an aqueous dispersion with a gas containing oxygen and ozone (e.g. ozonized air) to give carboxylic acids.  Alternatively the aldehyde hydrolysis products may be isolated as such.  The dispersion may be improved by including an emulsifying agent. Where an alkali is used as hydrolytic agent, the organic acids may conveniently be liberated by acidification before carrying out the final oxidizing step.  In examples: (1) oleic acid is emulsified with water, treated with ozonized air and the product hydrolysed with NaOH, preferably with cooling; after liberation of the free acids with HCl, the mixture is warmed to 60 DEG  C. and treated with ozonized air giving azelaic and pelargonic acids; (2) brassylic and pelargonic acids from erucic acid; (3) azelaic and pelargonic acids from sodium oleate; and (4) azelaic and caproic acids from linoleic acid containing some sodium linoleate are prepared similarly.
Patent GB-340701-A (GB)
Title: Improvements in or relating to fish-plates or angle-plates for rail tracks
IPC: E01B11/04
Filed: 1929-11-08
Abstract: 340,701. Permanent way. MORGAN, F. R., 99, Dorset Road, Bexhill-on-Sea. Nov. 8, 1929, No. 34065. [Class 104 (ii).] The fishing-surfaces of fishplates are made discontinuous and provide surfaces only at the centre and ends. The face of the reduced portion may be parallel to the fishing-surface or perpendicular to the rail web. The outer face of the plate may taper towards the ends.
Patent GB-879077-A (GB)
Title: Method and apparatus for producing a molded article having a foraminous member embedded therein
IPC: B29C33/16
Filed: 1959-10-08
Abstract: 879,077. Moulding plastic articles incorporating foraminous members. PARMELEC PLASTICS CO. Oct. 8, 1959 [Feb. 17, 1959], No. 34112/59. Class 87(2). [Also in Group XX] An article, e.g. a side shield for a pair of glasses, having a foraminous member embedded therein is moulded by supporting the member in a mould cavity so that its central area is covered, and then introducing molten material into the cavity so that upon solidification the central uncoated area of the member is surrounded by material. A protective bead 14 of plastic material e.g. cellulose acetate is moulded around a metal screen 12 to form a side shield 10 attachable to spectacle frame 22, in a mould 36, 38, 44. The screen is centrally located in the mould by pins 48 registering in holes 50 and flat faces 46 of members 44 cover the central area of the screen and a periphery cavity 40 is defined into which the material is injected. In the embodiment of Fig. 4, (not shown), a ferromagnetic screen is centrally located by magnets permanently located in the mould.
Patent GB-467820-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J61/70
Filed: 1935-12-10
Abstract: 467,820. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen) Dec. 10, 1935, Nos. 34194/35 and 4271/36. [Class 39 (i)] [Also in Group XVIII] A lamp is adapted to operate on a predetermined sinusoidal voltage, is filled with a mixture of gases or vapours the 'components of which have ionisation potentials which are substantially different and is so asymmetrical that, in operation, so much electrophoresis occurs that both of the components emit light, one in one part of the lamp and the other in another part. A lamp may have a bore of 7 mms., thermionic electrodes of different emitting power and a filling which consists of helium at 6'7 7 mms. and argon at 0À3 mms. To produce white light the filling may consist of mercury and neon at 2 mms. ; sodium may be added so that a mercury discharge is located between the neon and sodium discharges. The part of the tube in which the mercury discharge occurs may be coated internally with zinc silicate. The tube may be surrounded by a diffusing envelope. The lamp may comprise two L-shaped limbs 1, 2 which are joined by a narrow tube and are provided at their upper ends with large electrode chambers in which are arranged a thermionic electrode of low work function and an electrode of high work function respectively. Red neon light is emitted from the limb 1 and blue mercury light from limb 2. The limbs are separated by an opaque screen 10 and a trough 9 with a white or green internal surface, is provided so that the red limb is seen on a background of blue light. The amount of mercury should be small so that it is all evaporated or, alternatively, it is confined in a porous chamber. In another form, the asymmetry of the tube may be produced by earthing both the secondary of the supply transformer and a suitable point of the tube. A starting electrode may be provided. Specifications 247,180, [Class 39 (i)], 415,111,415,113,424,322, and 449,031 are referred to. Reference has been directed by the Comptroller to Specification 424,322.
Patent GB-190906-A (GB)
Title: Improvements in or relating to thermally operated circuit controllers
IPC: H01H29/30
Filed: 1921-12-20
Abstract: 190,906. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 20, 1921. Mercury switches. -A thermal overload circuit-breaker which closes a circuit when the abnormal current has been flowing for a certain time, the circuit being again automatically broken when the excess current is reduced, consists of an evacuated or gas-charged glass container with mercury contact pockets 6, 7 in a barrel portion 4, and an extension 5 containing mercury, part of which is ejected into the barrel to bridge the contact pockets when excess current flows in the heating coil 15. When the excess current is reduced, the mercury cools and flows back into the extension, thereby breaking the circuit, the diameter of a restricted portion 8 determining the time-element of the interruption. An independently variable time-element for the establishment of the circuit is provided by the size of the heating coil and by the thermal capacity of the two-part casing 16, 17 which encloses the heating element and the extension, and carries clip contacts 22, 23 to engage cap contacts in connection with the electrodes. Reference is made to Specification 173,657.
Patent GB-852386-A (GB)
Title: Improvements in railway track circuits
IPC: H01H47/00
Filed: 1958-10-27
Abstract: 852,386. Electromagnetic relays. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Oct. 27, 1958 [Dec. 18, 1957], No. 34307/58. Class 38 (5). [Also in Group XXX] A relay R comprises a magnetic circuit 15 having three legs two of which are joined by a magnetic bridge 15A and three windings, two of which, namely 18, 19, are in opposition on one of these two legs and the winding 17 on the other of the two legs is in series with the winding 18. In use in a railway track circuit signalling system (see Group XXX) the ampere turns of the winding 17 are made equal to the difference of the ampere turns of windings 18, 19 resulting in no flux through the bridge 15A, but fluxes in the same direction through the armature 16 to keep this latter operated. On departure from the balanced conditions of the magnet system the armature drops.
Patent GB-634102-A (GB)
Title: An improved process for carrying out vapor phase chemical reactions in the presence of a suspended catalyst
IPC: B01J8/18
Filed: 1946-11-19
Abstract: <PICT:0634102/III/1> In vapour phase catalytic reactions, e.g. vapour phase oxidation of naphthalene or o-xylene to phthalic anhydride, the catalyst is carried in suspension in and concurrently with a stream of reactant vapours through a tubular reactor 1 of uniform cross - section, is abruptly disengaged from vapour and simultaneously subjected to the action of a stripping gas, e.g. steam, in vessel 5 and is readmitted to the reaction zone through line 3.  The reactant vapours enter the reaction zone by line 3 and reaction products leave by line 7.  Stripping steam is injected into vessel 5 through line 6 and a heat-exchange surface 8 is provided to remove the heat of reaction from the catalyst.  The mass of catalyst at the bottom of vessel 5 is fluidised by admitting steam at 10 and entry of catalyst to line 3 is controlled by slide valve 9.  The catalyst-vapour contact time is preferably less than one second.  In a modification, the reactor comprises a central tube within a standpipe, the catalyst being disengaged from the reaction products in an enlarged low vapour-velocity space to which stripping gas is fed and which is positioned above the tube but in the standpipe, disengaged catalyst falling down the standpipe and being reintroduced to the tube at its lower end. Specification 568,913 is referred to.