baber/WOPTO huggingface dataset:
Patent GB-1009170-A (GB)
Title: Improvements in or relating to devices for augmenting the momentum of a flow of fluid
IPC: F04F5/46
Filed: 1962-07-27
Abstract: 1,009,170. Injectors. SOC. BERTIN ET CIE. July 27, 1962 [July 28,1961], No. 28944/62 Heading F1E. Ambient fluid is induced to flow through a convergent-divergent passage formed partly by a solid wall 1 and partly by the inducing fluid 6 issuing from a slot 3, the slot being bounded by an external divergent wall 8, forming a neck, and an internal lip 7 whose downstream edge is positioned adjacent the neck. In another embodiment the lip 7 is positioned a short distance above the neck. Specifications 825,957 and 847,500 are referred to.
Patent GB-187463-A (GB)
Title: A tuning device for stringed instruments
IPC: G10D3/14
Filed: 1921-11-01
Abstract: 187,463. Bisaz, C., and Vital, U. Nov. 1, 1921. Stringed instruments, tuning-devices for. - A tuning device applicable to violins, harps, zithers, pianofortes &c., consists of a rod-like member a having turned-down ends b through which the string d passes, thus supporting the device, and carrying a screw g bearing on and deflecting the string. In a violin the tension of the string presses one of the ends b against a rib i on the tail-piece h. The bearing-end of the screw may be covered with ebonite or fibre, or provided with a rotatable cap.
Patent GB-962500-A (GB)
Title: Improvements in or relating to finishes for leather-like materials
Inventor: BRYANT CHARLES LESLIE
IPC: B29C37/00
Filed: 1962-07-30
Abstract: 962,500. Finishes for leather-like materials. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 24, 1963 [July 30, 1962], No. 29124/62. Heading B5A. A vulcanizable sheet of resin/rubber composition (e.g. a mixture of natural rubber and/or a styrene-butadiene copolymer rubber, and a styrene-butadiene copolymer containing between 70-90% styrene) or other rubber based composition, is embossed to provide a leather grain or other desired effect on its surface, a coloured finish is applied and the sheet is pressed in a mould between heated platens to vulcanize the composition. The pressure is initially insufficient to cause substantial lateral flow of the composition, and is increased when vulcanization is sufficiently advanced for the composition to be incapable of substantial flow. The composition may be calendered and then passed between a pair of rolls, one of which bears the desired engraved pattern, or the embossing may be performed as a separate operation. The coloured finish may be applied by swabbing, padding, roller coating or brushing, but preferably an aqueous dispersion of a pigment or dyestuff is applied as a spray. Preferably, the spray consists of coarse droplets applied at an angle less than 45 degrees to the plane of the sheet, and at low air pressure.
Patent GB-617441-A (GB)
Title: Improvements relating to curtain rails
IPC: A47H1/144
Filed: 1946-10-01
Abstract: 617,441. Curtain rails. PARSONS, J. Oct, 1, 1946, No. 29198. [Class 52 (v)] An inverted U-shaped curtair rail 1, has limbs of equal length spaced apart to house tongues 7 formed on supporting brackets 5 The runners 3 comprise hooks adapted to embrace the rail Specification 295,964, [Class 5: (v)], is referred to.
Patent GB-1115984-A (GB)
Title: 7-hydroxy-9a-methoxy mitosane and derivatives thereof
Inventor: MATSUI MASANAO
IPC: C07D487/14
Filed: 1965-07-09
Abstract: Novel antibiotic derivatives of mitosane compounds of the Formula I <FORM:1115984/C2/1> wherein X is H, lower alkyl or RCO-, Z is H, alkyl or RCO-, provided that Z is neither H nor CH3 when X is CH3, and R is a lower alkyl group or the phenyl radical and wherein, when X and Z are both RCO-, R is the same in both ("lower" indicating a maximum of five carbon atoms), are prepared by hydrolysing a compound having the general formula <FORM:1115984/C2/2> wherein Y is OR, or <FORM:1115984/C2/3> R1 is an alkyl group, and R2 and R3 are hydrogen or an alkyl group, with an alkali, and, if desired, further alkylating or acylating to produce a compound having the formula <FORM:1115984/C2/4> respectively, wherein R is as defined above. The hydrolysis reaction is carried out in alkaline solution, i.e. an aqueous solution of an inorganic base such as Na2CO3, NaOH or KOH or an organic base such as triethylamine.  Examples of alkylating agents include diazoalkane, alkyl halide and dialkyl sulphate; acid anhydrides or acid halides are used as acylating agents.  Compounds of Formula I above, without the proviso regarding the cases where X is methyl, may be prepared by the process according to the invention. Examples relate to the preparation of 7-hydroxy - 9a - methoxy - mitosane, 7 - methoxy - 9a - methoxy - mitosane, 1a - acetyl - 7a-acetoxy - 9a - methoxy - mitosane and 1a - benzoyl -7a-benzoyloxy-9a-methoxy-mitosane.
Patent GB-207679-A (GB)
Title: Process for the recovery of aluminium
IPC: C22B21/06
Filed: 1922-10-27
Abstract: 207,679. Tullis, D. R. Oct. 27, 1022. Dry processes of recovering aluminium; liquating. - Aluminium waste such as skimmings, dross, ash, cuttings and turnings, is treated for the recovery of aluminium by impregnating it with an aqueous solution of one or more compounds of alkali metals, alkaline earth metals, ammonia, aluminium and zinc, heating the impregnated material in' a furnace to a temperature which may reach 1500‹ C., and afterwards allowing it to cool to a temperature at which the molten metal may be decanted from the residue.
Patent GB-736856-A (GB)
Title: Improvements in and relating to the separation of hydrocarbons
Inventor: CLOUGH HARRY
IPC: C07C7/08
Filed: 1951-12-14
Abstract: A xylene-rich fraction is produced from a mixture of hydrocarbons comprising ethyl benzene, xylenes and aliphatic and/or naphthenic saturated hydrocarbons by a process comprising subjecting the mixture to extractive distillation with a monohydroxy phenol boiling within the range of from 215 DEG  to 255 DEG  C. at atmospheric pressure, taking off as overhead product a fraction containing substantially all the non-aromatic hydrocarbons, ethyl benzene and at most only 10 per cent of its weight of xylenes and as bottom product a solution of aromatic hydrocarbons substantially free from non-aromatics and having an increased xylene content and an increased weight ratio of xylenes: ethyl benzene.  The hydrocarbon mixtures treated suitably contain at least 40 per cent of saturated non-aromatics, at least 5 per cent of xylenes and an amount of ethyl benzene from 5 to 30 per cent by weight of the total xylenes; the preferred mixtures boil between 125 DEG  and 155 DEG  C.  Distillation may be effected in a bubble cap, sieve plate or packed column.  The bottoms product of desired xylene-rich fraction in phenolic solvent is fed to a stripping column wherein the xylenes are removed as overhead-product and the solvent is withdrawn from the base and returned to the extraction column.  The preferred phenolic solvent is a cut boiling from 215-255 DEG  C. and containing a small proportion only of compounds in which both the 2- and 6- positions are alkyl-substituted.  Examples are given. Specifications 563,930 and 571,913, [Group IV], are referred to. According to the Provisional Specification, the extractive solvent may be any polar solvent having a B.P. at least 50 DEG  C. higher than that of o-xylene.
Patent GB-275459-A (GB)
Title: Process for the production of solid ammonium carbonate from its components
IPC: C01C1/26
Filed: 1926-11-20
Abstract: 275,459. Rhenania-Kunheim Verein Chemischer Fabriken Akt.-Ges. Nov. 20,1926. Addition to 262,408. Ammonium carbonate.-In the process according to the parent Specification in which solid ammonium carbonate is produced from its components by the introduction of ammonia and carbon dioxide into a reaction chamber whose walls are irrigated with aqueous liquid, the temperature is maintained so that it does not substantially exceed 60‹ C. when atmospheric pressure is used. With pressure above normal a temperature between 60 and 90‹ C. may be employed. According to one example, the ammonia, carbondioxide and water are introduced at such a rate that the temperature does not exceed 40‹ C. In a second example, in which the components are introduced under pressure, the temperature of the reaction is reduced to 70-80‹ C. by external cooling.
Patent GB-1114574-A (GB)
Title: Improvements in or relating to electrical measuring apparatus
IPC: G01R17/00
Filed: 1965-07-13
Abstract: 1,114,574. Electric analogue calculating. G. A. MESSEN-JASCHIN. 13 July, 1965 [14 July, 1964], No. 29572/65. Heading G4G. [Also in Division G1] An A.C. measuring apparatus in which the difference between two A.C. voltages is derived using rectifier diode circuits is arranged so that the diode circuits are highly sensitive even when the difference approaches zero. The two voltages are applied to two transformers 16, 17 each having two similar secondary windings connected in series in full-wave rectifier circuits, the output of each full-wave rectifier being connected via an associated resistor to an output terminal 18, the arrangement being such that the output from the first rectifier circuit opposes that from the second circuit. A D.C. source is connected between the junctions of the two series connected secondary windings on each transformer so that the two rectifier circuits and their associated resistors form a series connected conducting D.C. chain, the diodes being biased away from the zero operating points. A voltage to be measured may be derived from an inductive air gap modulator 11 used for measuring longitudinal variations and energized by means of a high-frequency square wave. The voltage derived from the modulator 11 is converted by means of an impedance transformer 14 and a filter 15 into a pure A.C. signal which is applied to the primary of the transformer 16. In order to compensate for errors arising in the measuring channel, an electrically equivalent second channel is provided including an impedance transformer 25 and a filter 26 identical to those in the measuring channel. A square wave is fed to this channel, produced by chopping the overall output voltage of the measuring system with the high-frequency square wave. The output from this channel is fed to the primary of the opposing transformer 17. At the output terminal 18 is derived a rectified measuring voltage superimposed on the partial bias voltage. This measuring voltage is applied to the differential amplifier 19, 20 and thence via an output transistor 22 to an instrument 24. At equilibrum conditions the inputs to the transformers 16, 17 will be equal, so that the effect of measuring channel errors is eliminated and the instrument 24 correctly provides the required measurement..
Patent GB-1125540-A (GB)
Title: Apparatus for trimming the ends of wires and crimping an electrical ferrule to the trimmed wire ends
IPC: H01R43/042
Filed: 1967-06-27
Abstract: 1,125,540. Crimping tools. AMP Inc. 27 June, 1967 [17 Aug., 1966; 20 Jan., 1967], No. 29574/67. Addition to 1,043,653. Heading B4W. The apparatus described for trimming the ends of wire and crimping ferrules on to the wire ends is similar to that disclosed in the Specification 1,043,653 in which an anvil and die are relatively movable to effect the trimming and crimping operation, but the present Specification describes a pair of shearing members 98 and 99 located one on each side of the die 76 and which co-operate with the end faces of the die during relative movement between the die and anvil 68 to shear the ends of the wire and whereupon subsequent movement between the die and anvil crimps a ferrule to the trimmed ends of the wire to join the wire ends together in overlapping parallel relationship. Wire supporting plates 126, 128 are secured to the outer sides of the members 98 and 99 respectively and are provided with slots 130, 130<SP>1</SP>, 132, 132<SP>1</SP> into which the wire ends are located in crossed relationship. A lostmotion connection is provided between the shearing members and the anvil block 38 by way of elongated slots 104 in the members 98 and 99 which co-operate during operation with a pin member 106 in the block 38. In an alternative embodiment, Fig. 11 (not shown), the wire ends 14, 16 are retained in holding plates (148), (150), by spring members (154), (162), a lost-motion connection between the shear members and the holding members is not necessary since the portions of the wires 14, 16 between the end (160), (167) of the members (154), (162), and the plates (148), (150) can remain stationary due to slot clearance while the plates move upwards to effect the crimping operation. In a further embodiment the shearing members depend downwardly from a slide portion attached to the movable anvil and have respective shearing portions which are of opposite bend to effect trimming of the wire prior to crimping.
Patent GB-1355408-A (GB)
Title: Epoxy resin compositions
IPC: C08K5/18
Filed: 1972-06-23
Abstract: 1355408 Epoxy/polyimide resins RHONEPOULENC SA 23 June 1972 [24 June 1971] 29603/72 Headings C3R and C3B Heat-curable compositions are obtained by reacting (a) an epoxy resin with (b) an imide group containing prepolymer obtained by heating at 50‹ to 250‹ C. (i) a bis-imide wherein D is an unsaturated divalent organic radical and A is a C 2-30  divalent radical, with (ii) a polyamine of average formula wherein R is a C 1-8  divalent hydrocarbon radical derived from an aldehyde or ketone R = O and x is 0À1 to 2, in proportions such that (i) provides 1 to 50 imide groups per -NH 2  group from (ii). Numerous examples of reactants (a) and (b) are given and reference is made to Specification 1,355,403 in respect of (b). Reactant (b) may constitute 5 to 90 wt. per cent of (a)+(b) and may be prepared in situ in (a). Reaction of (a) with (b) may be effected at 50‹ to 200‹ C. to give a liquid or pasty product which may be cast directly, cooled and ground to give a moulding powder, or dissolved, e.g. to give a laminating solution. The composition may also contain up to 10% by weight of (b) of an aromatic compound containing 2 to 4 benzene rings which does not subline or boil below 250‹ C. Numerous such compounds wherein the rings are linked directly or via various linking groups are specified. Fibrous or pulverulent fillers may also be included. In examples (a) is various commercially available products, one having the average formula and another the average formula where m results in 0À556 epoxy group per 100 g.; (b) (i) is N,N<SP>1</SP>-4,4<SP>1</SP>-diphenylmethane bis-maleimide; and (b) (ii) is of the specified formula wherein R is CH 2  and n is 0À24 or 0À59. The curable composition is formed at 130‹ to 160‹ C. and the moulded at 250‹ C. Uses.-The compositions are stated to be particularly useful in applications requiring good mechanical and electrical properties and chemical inertness at 220‹ to 300‹ C., e.g. plate or tubular insulators for dry transformers, plates for transformer and motor armatures, in printed circuits, panels with honeycomb structure and compressor vanes. Reference is made to Specifications 1,280,846, 1,276,646, 1,260,819 and 1,190,718.
Patent GB-309206-A (GB)
Title: An improved process for treating liquids with gases or vapours and apparatus therefor
IPC: C11C3/12
Filed: 1927-11-05
Abstract: 309,206. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 5, 1927. Catalytic apparatus; oxidizing -Apparatus for the oxidation of organic liquids such as oils, fats, waxes, and hydrocarbons consists of a reaction vessel a containing inert or catalytic fillers. The liquid is fed in at the bottom, and a current of oxidizing gas is admitted by the pipe f. The resulting foam overflows through the pipe c and may be treated again in the same or another reaction vessel after being heated or cooled if required. According to the Provisional Specification the apparatus is generally applicable for the treatment of liquids with gases.
Patent GB-448927-A (GB)
Title: Improvements relating to the control of alternating currents
IPC: H03C1/58
Filed: 1934-10-17
Abstract: 448,927. Telegraph transmitters. HARRIS, L. H., 5, Phillimore Gardens, Kensal Rise, London. Oct. 17, 1934, No. 29645. [Class 40 (iii)] An alternating-current transmission line A, B, Fig. 1, is bridged by the primary 1 of a transformer, the secondary winding 2 of which is connected through a condenser 5 across the diagonal a, b of a bridge of non-linear conductors, e.g. dry-plate rectifiers, across the other diagonal c, d of which is connected a D.C. control circuit so arranged that the secondary 2 is effectively short-circuited when the point d is rendered positive relative to the point c. Thus, D.C. signals applied across the diagonal c, d key the alternating currents in the line. For double current D.C. signals a further bridge e, y may be provided so that the check meter M in the D.C. circuit may read zero. The second bridge may control in the opposite sense a transformer connected in series in the line, Fig. 3 (not shown). In another embodiment, Fig. 2, a single bridge controls in opposite senses series and parallel transformers 1<1>, 2<1> and 1, 2 respectively in the line A, B. A further embodiment, Fig. 6 (not shown), comprises a unit designed to replace a known type of keying relay, and which can be connected to a jack to be interchangeable therewith.
Patent GB-629497-A (GB)
Title: Improvements in or relating to apparatus for granulating friable substances
IPC: B02C18/00
Filed: 1947-11-06
Abstract: 629,497. Graters. JACKSON & CROCKATT, Ltd., J. G. and GAIR, D. Nov. 6, 1947, No. 29654. [Class 28(ii)] A food granulator of the type comprising one or more grids, arranged successively if there is more than one. and a blade or blades adapted to sweep across the grids in order to free the material through, is characterised in that each grid 15 is of wire mesh, the wire of which is of square section, and the mesh is supported on a series of knife edged supports 23.
Patent GB-189636-A (GB)
Title: Improvements in injectors for incandescent gas burners
IPC: F23D14/48
Filed: 1921-11-07
Abstract: 189,636. Gould, F. J. Nov. 7, 1921. Incandescent g a s burners.-A gas nipple regulator comprises a part 5 carrying a needle 4 adapted to be moved relatively to an outlet 3 in a casing 1 by the rotation of a screw 6 fitting through a gland or collar 7 and having an end 9 engaging an inclined groove 8 in the part 5, which is provided with grooves 10 for the passage o.f the gas, and a slot 11 to accommodate the stem part of the screw.
Patent GB-297228-A (GB)
Abstract: 297,228. Hutchinson, G. R. Dec. 19, 1927. No Patent granted (Sealing fee not paid). Two-stroke-cycle engines; cylinders, combustion chambers of.-A double-cylinder, doubleacting, two-stroke-cycle internal-combustion engine with cylinders placed in a plane at right angles to the crankshaft has one piston controlling scavenging-air ports 5 in one cylinder and the other piston controlling exhaust ports 6 of somewhat greater length in the other cylinder. The pistons have conical crowns, work together, and are connected to the same crosshead or crank. The cylinders have common covers of pent-roof shape communicating on both sides of the pistons. The piston-rod apertures in the lower cover are lined with thin tubes. The fuel valves 9, 10 are centrally housed. A multiple-cylinder engine may comprise a number of units.
Patent GB-262116-A (GB)
Title: Improvements in stop-cocks
IPC: F16K3/18
Filed: 1926-11-24
Abstract: 262,116. Karnath, K. Nov. 25, 1925, [Convention date]. Wedging or jamming. - In a sliding disc valve for high pressure conduits the unbalanced pressure of the fluid is relieved or equalized, prior to the opening of the valve, by rotary cams which lift the valve edge at opposite parts so that the high pressure fluid flows through the small gaps opened up at the rim. Similar means are provided, operating at opposite points of the valve rim at right-angles to the former, for forcing the valve to its seat in the closed position. In each case the cams may operate in succession. In the arrangement shown the cams 10 are operated by a spindle 4 and are used to force the valve disc 6 to its seat 8; the cams 14 for withdrawing opposite parts of the disc edge from the seating operate on arms 13 at the back of the disc. The two sets of cams are interconnected by means of a central gear pinion 17 on the spindle 4 and gear segments 16 on the shafts 15 operating the cams 14. When the pressure is relieved the valve is opened by rotating the wheel 2 and screwed sleeve 3 which carries up the valve. Similar arrangements are shown for controlling a sliding valve having two parallel valve discs.
Patent GB-336405-A (GB)
Title: Improvements in or relating to the mounting of coiled springs upon bearer bars
IPC: A47C23/053
Filed: 1929-10-02
Abstract: 336,405. Ner-Sag, Ltd., and Wood, A. W. Oct. 2, 1929. Mattresses. - H e l i c a l springs with spigot ends engaging sockets d on strip metal bearer bars b have their bottom coils formed to engage a bead or rim h on the bearer bar.
Patent GB-505026-A (GB)
Title: Improvements relating to electric discharge devices and/or circuits therefor
IPC: H01J29/74
Filed: 1937-11-03
Abstract: 505,026. Cathode-ray tubes. COSSOR (HOLDINGS), Ltd., A. C., and WILLIAMS, B. C. FLEMING-. Nov. 3, 1937, No. 30057. [Class 39 (i)] The beam issuing from the electron gun is divid. ed by a plate 7 between the first or only deflect. ing plates 5, 6; the plate 7 is at the same potential as the final anode 4 of the gun, sc that potential applied to the plate 5 or 6, does not affect the field between the plates 6 and 7 or 5 and 7 respectively. Two different controls may be applied to the plates 5 and 6 or only a single variable may be used on one plate. Small additional deflector electrodes 8, 9 may be used, these being cross-connected for bias as shown ; for correction of errors in the beam a small deflection-which may be effected magnetically-may be applied in the gun or between the gun and the plate 7. The deflector plates 5, 8 and the plate 7 are supported by mica discs 10, 11 which have slits. wherein the plates are centred. Dimensions of plates &c. for one construction are given. According to the Provisional Specification the beam may be deflected in one plane by a pair of plates one of which is adjacent the beam; this pair is the farther pair from the screen, the other pair being arranged normally and working push-pull. Trapezium distortion is prevented thereby. In another arrangement the beam is divided into a plurality of ribbons by wires arranged parallel to each other in a plane perpendicular to the gun axis ; in the shadows formed by the wires alternately, further thinner gauge wires or sheet electrodes are arranged to which deflecting potentials are applied. The deflecting wires may be coupled.