baber/WOPTO huggingface dataset:
Patent GB-1492834-A (GB)
Title: Image recording member
IPC: B41M5/20
Filed: 1975-03-27
Abstract: 1492834 Electrorecording sheet CANON KK 27 March 1975 [8 April 1974 (3) 10 April 1974 (3)] 12955/75 Heading D2B An electrorecording sheet comprises a substrate coated with a recording layer containing a conductive agent, a binder, a leuco dye base and at least one phenolic compound selected from (I) phenolic -resins having a softening point of from 40‹-200‹C obtained by reacting a phenolic compound having at least one phenolic hydroxy group and at least two unsubstituted positions at ortho and/or para position(s) relative to the phenolic hydroxy group, with at least one reactant selected from C 1-10  aliphatic aldehydes and derivatives thereof C 1-10  alkyl vinyl ethers, bifunctional compounds capable of linking phenolic compounds and cross linking agents containing sulphur; (II) phenolic compound agents containing one or more -S-, -S-S-, -SO 2 -, and -SO- reactive groups and being solid at normal temperature and capable of being liquefied or vapourised at a temperature higher than 50‹C, and (III) phenolic compounds having one or two phenolic hydroxy groups and at least one alkyl moiety containing 4-30 C atoms and a melting point of from 40-200‹C. A conductive layer may be provided intermediate the substrate and recording layer; or the recording layer may in fact consist of two strata, one containing mainly a conductive agent and the other mainly leuco dye base and phenolic compound. The conductive agent may be a metal; or an oxide, sulphide, phosphide, or halide of a metal; an alloy, a clay or zeolite, a conductive polymer, a metallic vapour-deposited material, or a carbon compound. Colour developing accelerating agents may be incorporated in the recording layer. Such agents may be selected from phenolic compounds, clays, oxides, or carboxylic acids.
Patent GB-416597-A (GB)
Title: Improvements in trellis work
IPC: E04H17/14
Filed: 1933-05-04
Abstract: In trellis or lattice work comprising woven longitudinal and transverse laths, the laths are notched on opposite sides alternately at the points of intersection whereby they are securely held together without nails, rivets &c.
Patent GB-1453510-A (GB)
Title: Axially compressible or elastic package support
IPC: D06B23/04
Filed: 1974-03-25
Abstract: 1453510 Bobbins GRETENER AG 25 March 1974 [3 April 1973] 13061/74 Heading B8M An axially compressible or "elastic" (yarn) package support or dye tube 1 or 10 comprises rigid end rings 2 and 3, intermediate rings 4 or 11 and supporting elements 5 each having a flexible U-shaped element 6, having two arms 7 and a yoke 8, and a rigid linear element 9. The ends of the arms 7 are connected to one ring and element 9 is connected at its ends to yoke 8 and another ring. Two arrangements of elements in a peripheral row and on opposite sides of intermediate rings are shown.
Patent GB-1106421-A (GB)
Title: A process for the production of acid proof amylase by means of black aspergilli
IPC: C12N9/30
Filed: 1965-03-27
Abstract: An acid-proof amylase is prepared by the submerged fermentation of a culture of a Black Aspergillus selected from Aspergillus niger, A. awamori and A. usami in a conventional nutrient medium in which, for the first part of the fermentation, the pH is kept in the range pH 5.0 to 5.8 and, subsequently, it is held in the range pH 2.2-4.5. The pH is then allowed to rise again to pH 5.0 to 5.5 and the enzyme is recovered by conventional means from the culture.
Patent GB-342220-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes and holders therefor
IPC: H01J5/50
Filed: 1930-04-29
Abstract: 342,220. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. April 29, 1930, No. 13190. Convention date, Jan. 3. [Class 39 (i).] One or more of the contacts 7 of a valve or other discharge device are formed as parts of a press stud. The contacts may be arranged symmetrically, and, to prevent wrong insertion, one contact consists of a socket 6, the contacts on the holder being arranged correspondingly.
Patent GB-1237394-A (GB)
Title: Method of strengthening vitreous materials
Inventor: LEGER LUCIEN
IPC: C03C17/02
Filed: 1968-03-19
Abstract: 1,237,394. Strengthening vitreous materials. GLAVERBEL. 19 March, 1968 [27 April, 1967], No. 13246/68. Headings C1A, C1M and C1N. A layer of vitreous or vitro-crystalline material is strengthened by covering the layer while in the solid state either entirely or at zones which are laterally opposed with respect to a mid-surface of the layer with a solid coating(s) in which compressive stresses can be produced or increased by chemically modifying the coating in heated condition while the coating(s) remain solid, with the aid of a reactant in contact therewith and then cooling the coating(s). The coating(s) are preferably from 1 to 150 microns thick and the layer may be less than 3 mm. thick. The chemical modification may involve the combination of an element or compound in the coating(s) preferably of invariable valency e.g. Sn, Ti, Si, V, Pb, Mn, Al, Zr, Th, Bi, Ni, or SiO, TiO, SnO, PbO with another substance e.g. oxidation with ozone or molten KNO 3 , or combination with S, Te, Se or another element the ions of which have a greater ionic radius than oxygen. The chemical modification may involve an ion-exchange e.g. of alkali metal ions between the coating(s) and a contacting medium e.g. the replacement of Na+ in the glass coating(s) by K<SP>+</SP> at a temperature below the annealing point of the glass, or the replacement of Na<SP>+</SP> in the glass by Li<SP>+</SP> at a temperature above the annealing point and confers a lower coefficient of thermal expansion on the glass coating. In the examples (i) a titanium film was deposited by vacuum evaporation on both surfaces of a soda lime glass disc and the film was oxidized with ozone at 550 C.; (ii) a SnO film was deposited on the internal and external surfaces of a soda lime glass beaker from an alkaline solution of stannous chloride, and the film was oxidized with molten KNO 3  at 500 C.; (iii) a sheet of partially devitrified glass composed by weight of Li 2 O 15%, Al 2 O 3  10%, SiO 2 , 50%, CaO 10%, B 2 O 3 , 8%, TiO 2  7% was coated on both faces with an 80: 20 mixture of germanium and sodium by vacuum deposition. The coated sheet was then exposed to H 2 S and the germanium was sulphurized by the sodium polysulphides formed. The resultant coating(s) are vitreous and pale red and are a mixture of GeS 2  and Na 2 S; (iv) vitreous layers of GeS 2 , CdS, Na 2 S formed by sulphurizing the respective metal on both surfaces of a sodalime glass sheet were immersed in a bath of KCl and NaCl and resulted in a substitution of Na<SP>+</SP> by K<SP>+</SP> in the vitreous coatings and surface layers of the glass sheet; (v) an enamel comprising the following molecular proportions SiO 2  40, B 2 O 3  10, PbO 25, PbF 2  5, NaF 10, ZrO 2  3, CdO 7 and containing 2% by weight zinc powder was deposited on both faces of the devitrified glass of the composition above and was exposed to dry hydrogen selenide gas at 400 C. The zinc in the coating reacted to form ZnSe which was in the vitreous state.
Patent GB-132660-A (GB)
IPC: F24B1/191
Abstract: 132,660. Mouat, B. J. April 14, 1919. Fuel-economizers.-A fuel-saving device, comprising an open-work box-like structure arranged at the back of the fire-place and fitted with a damper d, is provided with slotted lugs b by means of which it is bolted to the grate bottom. The box may be in two parts capable of relative adjustment to vary the size of the device, and the ends and front may be separate and renewable.
Patent GB-794041-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: C03C27/02
Filed: 1955-05-09
Abstract: An electric discharge device has an envelope of glass and a metal portion sealed thereto, the metal portion being Cu or a Cu alloy containing 0.01 to less than 2.0 per cent Al.  The Cu alloys may contain Ni, e.g. up to 50 per cent, or Sn, e.g. about 6 per cent, or both of these elements.
Patent GB-133204-A (GB)
IPC: B26D3/20
Abstract: 133,204. Gaunt, R. Nov. 6, 1918. Cutlery and like blades.-A knife a for cutting chip potatoes is formed of a strip having a corrugated cutting portion and plain ends. The knife may be made by passing a flat strip between a spur pinion k operated by a handle or otherwise, and a sector pinion l; the strip being afterwards tempered as usual.
Patent GB-1425895-A (GB)
Title: Image projector
IPC: G03B27/56
Filed: 1973-03-20
Abstract: 1425895 Enlarger or projector J M A ASTARLOA 20 March 1973 13325/73 Heading G2A A device for projecting images on a horizontal or vertical surface comprises a base 1 to which a sheet may be clamped (in the Fig. 1 position of the device) by a pair of spring-biased hinged bars 2, a boss 7 to which is hinged a rod 8, a telescopic column 9 slideable over rod 8 and its hinge connection with boss 7 and lockable to rod 8 by  means of a locking screw 14 in a clamp 10 having a projection 16, on one side, forming a support (in the Fig. 2 position of the device) and a pair of projections 15, on the other, forming a catch channel (again in the Fig. 2 position) for a tongue 11 attached to a relatively movable projectorsupport arm 38. The latter is lockable, at one end, to column 9 by locking screw 13 and supports, at the other, a lamp and transparency holder housing 36 to which is connected a relatively movable lens holder 25 via a rack 24 and toothed wheel 26.
Patent GB-294601-A (GB)
Title: Improvements in stop motion for gill boxes
IPC: D01H13/16
Filed: 1928-05-05
Abstract: 294,601. Scott, W. J. July 27, 1927, [Convention date]. Stop-motions. - A device for shifting the driving-belt of a gill box when the sliver runs thin comprises a pair of pivoted arms 23, Fig. 4, which straddle the sliver 16. When the width of the sliver is reduced the arms fall and a screw 29 makes contact with an insulated stud 25, carried by the supporting frame 15, closing an electric circuit and energizing a solenoid 33, Fig. 6, to release a catch 31 and allow a spring 32 to operate the belt fork rod 30.
Patent GB-133625-A (GB)
IPC: F21V19/02
Abstract: 133,625. Cable Accessories Co., and Reeves, F. H. May 2, 1919. Electric-lamp lanterns.-An electric-lamp bulb is adjusted axially within a lantern by means of a rotatably mounted screwed stem e engaging a bridge-piece d carrying the electric-lamp holder c, the bridge-piece d being guided by one or more bolts i. In a modification, the bridge-piece is adjusted by two rotatably mounted screwed stems, which may be geared together.
Patent GB-133664-A (GB)
IPC: A43B3/02
Abstract: 133,664. Wirsching, A. F., and Wirsching, R. A. Oct. 10, 1918, [Convention date]. With attachments for special purposes. - A boot is fitted with a pocket 10 located between the upper and its lining at the top of the boot, the opening to the pocket being closed by a flap 16 which extends only partly down the length of the pocket and is secured by a snap fastening 17, 18. Reference has been directed by the Comptroller to Specification 23122/12.
Patent GB-882311-A (GB)
Title: Improvements in or relating to the extraction of thorium from thorium chloride and to the production of magnesium-thorium alloys
Inventor: PITTS FRANK
IPC: C22C1/02
Filed: 1958-04-28
Abstract: A fused mixture of thorium chloride with alkali or alkaline earth metal chlorides which may be used in the subsequent preparation of magnesium-thorium alloys, is produced by passing chlorine through a bath of alkali and/or alkaline earth metal halide to which thorium oxide is gradually added together with small quantities of ferrous sulphide as catalyst.  Small amounts of carbon are also present as catalyst.ALSO:Alloys of magnesium containing up to 50% of thorium are obtained by adding magnesium, which may contain other alloying elements e.g. zinc or zirconium to a fused mixture of thorium chloride and one or more alkali or alkaline earth metal chlorides, the magnesium being considerably in excess of that needed to precipitate the thorium, so that the resulting alloy contains at least 10% of magnesium.  The bulk of the chlorides is decanted from the alloy, and the remainder converted to a semisolid mass of greater density than the alloy by addition of calcium fluoride. The alloy is then decanted.  By treating the salt residue with a further quantity of magnesium, more thorium can be recovered in the form of an alloy containing 1-5%.  The main product of the process may be used as a master alloy in the production of magnesium alloys of lower thorium content.
Patent GB-185799-A (GB)
Title: An improved resilient core for motor tyres and apparatus and method for manufacturing same
IPC: B60C7/12
Filed: 1921-05-11
Abstract: 185,799. Robbins, G. A. H., and Einsiedel, S. F. E. May 11, 1921. Moulding wheel tyres.-A rubber core A, has a rounded base A<1>, Fig. 3, and helical air-passages B, B<1>, and is moulded in two portions, in a mould comprising an outer part G, with spaced bosses G<1> to form the helical passages, and an inner part F. The half-cores are semi-vulcanised by placing the moulds in a steam-heated pan, the core halves being then assembled on a rounded bed-plate C, Fig. 3. The composite core is then bound tightly with canvas strips, vulcanisation being completed by steam admitted through two tubes D, at diametrically opposite points, leading into the airpassages B, B'.
Patent GB-1241651-A (GB)
Title: Improvements in or relating to baths
Inventor: SIERANT STANLEY LESLIE
IPC: A47K3/02
Filed: 1967-06-17
Abstract: 1,241,651. Sprays. S. L. SIERANT. 17 June, 1968 [17 June, 1967; 11 Aug., 1967; 20 March, 1968], Nos. 28022/67, 36958/67 and 13416/68. Heading B2F. [Also in Division A4] A bath is supplied with water via tubular members 27 which are rotatable within protrusions formed at the junctions of the bottom wall with the side walls of the bath so that one row of a plurality of differently sized or angled rows of perforations 29 in each member 27 may be aligned with a row of apertures 30 in a protrusion. Alternatively the members 27 may be stationary and a shutter used to uncover selected rows of perforations, or a deflector may be adjustably mounted to deflect the jets of water from the members 27.
Patent GB-633766-A (GB)
Title: An improved scooter
IPC: B62K3/00
Filed: 1946-05-10
Abstract: 633,766. Scooters. FARESO, J. May 10, 1946, No. 13468. [Class 136 (iii)] In a scooter consisting of two or more parts the wheels are off set the centre line to enable an even balance to be kept. The scooter may be folded as shown in Fig. 1. An interlocking swivel is provided between a front hinge member A and a sleeve member B. Two slots E unite the parts A, B which are held in the upright position by a thumb screw or by a sliding bracket E<SP>1</SP>, Fig. 2. The wheel axle may be held on both sides of the wheel as in Fig. 1 or on one side only as in Fig. 2.
Patent GB-777521-A (GB)
Title: Process for recovery of sulphur from sulphur-containing gas purifying material
IPC: C01B17/033
Filed: 1955-05-10
Abstract: Sulphur is extracted from sulphur-containing material with liquid naphthalene at a temperature of 120-150 DEG C., the extraction being carried out in at least two steps, the first extraction step being with naphthalene containing at least sufficient sulphur to produce the eutectic mixture, the extract being cooled to not below the eutectic point, precipitated sulphur removed, and the remaining liquid returned to the extraction step, and the second extraction step being with naphthalene substantially free from sulphur.  One or more extraction chambers may be provided and the sulphur-containing material may be arranged in static beds or may pass in counter current flow to the liquid naphthalene.  A portion of the naphthalene may be distilled from the sulphur rich extract from the second step of the process with the aid of vacuum or steam, and recycled to the second step of the process.  The residual mixture may be passed to a further stile where the remaining naphthalene is removed at a temperature of about 230 DEG C., tar is decomposed by heating to about 300 DEG C. at atmospheric pressure, and the sulphur is distilled off at a temperature of 300-350 DEG C. and a pressure of 50 mm. of mercury or less.  The material may be extracted in baskets. The sulphur-containing material may be spent oxide, crude sulphur extracted from spent oxide by means of carbon disulphide, or bituminous sulphur.  When extraction is complete, remaining naphthalene may be partially or completely removed from the sulphur-freed material by means of steam.
Patent GB-150401-A (GB)
Title: Manufacture of allyl ester of 2-phenylquinoline-4-carboxylic acid
IPC: C07D215/52
Filed: 1919-05-28
Abstract: Allyl ester of 2 - phenylquinoline - 4 - carboxylic acid is prepared by allylating the acid, or a salt or halide thereof, by the usual methods.  The product is tasteless and dissolves uric acid more readily than does the free acid.
Patent GB-709739-A (GB)
Title: Sealing and spacing means for a hinge connection
Inventor: DEFFENBAUGH JOHN LEWIS
IPC: B62D55/088
Filed: 1951-06-07
Abstract: 709,739. Endless tracks for vehicles. CATERPILLAR TRACTOR CO. June 7, 1951, No. 13505/51. Class 79(1) [Also in Group XXV] In a hinge connection between a pair of adjacent shoes in an endless track, a link 12, bolted to one shoe, is press-fitted on a bushing 13 rotatably mounted on a pin 14, and the latter is press-fitted in a boss 16 formed on another link bolted to the other shoe. The inner face of the boss is formed with an annular recess 17 containing a sleeve 18 which serves to space the boss and the link 12 apart, while a rubber ring 19, compressed in the recess, urges a washer 20 against the link 12 to prevent entry of foreign material into the hinge connection. The spacer 18 may be a separate member or may be made integral with either the bush 13 or the boss 16.
Patent GB-387989-A (GB)
Title: Electrical remote indicator for measuring variations in the level of liquids
IPC: G01F23/44
Filed: 1931-05-07
Abstract: 387,989. Electric signalling systems. SOC. D'ETUDE DE DISTRIBUTEURS AUTOMATIQUES (S.A.D.A.), 22, Rue d'Athenes, Paris.-(Assignees of Tribout, A. M. L. ; 48, Avenue Charles Floquet, Paris.) May 7, 1931, No. 13582. Convention date, July 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (i).] The value of an indication is determined by tuning a circuit to a predetermined resonant frequency. Movement of the float 1 moves a potentiometer 7 so that the resonant frequency of the circuit 8, 9 is altered. The potentiometer 10, which is similar to 7 but is initially set at 180‹ to the setting of 7, is set by hand until the circuit 8, 9 resonates at the frequency of the heterodyne note generated by the stabilized valve circuit 13, inductively coupled to 8, 9 over 11, 15. Deflection of the milliamperemeter 19 is a maximum when the circuit 8, 9 resonates. The potentiometer 10 is calibrated to indicate the height of the level a, b.
Patent GB-586840-A (GB)
Title: Manufacture of disazo-dyestuffs
IPC: C09B31/14
Filed: 1943-08-20
Abstract: Disazo-dyestuffs are made by coupling a diazo-compound of an amino-azo-dyestuff of the general formula <FORM:0586840/IV/1> where X represents a connecting member (other than an azo-group) containing at least one nitrogen atom directly attached to the naphthalene nucleus, and R1 and R2 each represent an aryl residue, with 8-oxyquinoline or a derivative thereof, the components being so chosen that the products contain not more than two sulphonic acid groups in the molecule.  They may be treated in substance, in the dyebath or on the fibre with agents yielding metal, complex copper tartrates being specified.  The amino-azo-dyestuffs of the above general formula are obtained by coupling a diazotised amine of the formula R1NH2 in alkaline medium with a 5-naphthol-7-sulphonic acid substituted in the 2-position by -X-R2-NH2.  R1 may be substituted, e.g. by sulphonic or carboxylic acid, hydroxy, alkoxy or carboxy-alkoxy groups, and first components specified are: 2 - amino - 1 - methoxy -, 2 - amino - 6 - chloro- 1 - oxy -, 6 - nitro - 2 - amino - 1 - oxy - and 2 - amino - 1 - oxy - benzene - 4 - sulphonic acid, 2 - aminophenol - and 2 - amino - 1 - phenoxyacetic acid - 4 - sulphonamide, 2- and 4-aminobenzoic acid, 2-amino-3-naphthoic acid, 1 - amino - 2 - methyl -, 2 - chloro - 4 - amino - and 4 - amino - 5 - phenoxyacetic acid, 2-amino-1-methoxy-4-methylbenzene, 4-chloro-2 - amino - 1 - oxy - and 4 - nitro - 2 - amino - 1 - oxy-benzene-6-sulphonic acid, 4-aminophenol-2-carboxylic acid, and the sulphonic acids obtained by sulphonation of 4-chloro- and 4 - methyl - 2 - amino - 1 - methoxybenzene and o-toluidine respectively. The connecting member X may be, e.g. an acid amide group or may be part of a ring as in the case of the corresponding imidazoles, thiazoles or triazines, and specified middle components are 2-(41- or 31-aminobenzoyl) - amino - 5 - naphthol - 7 - sulphonic acid, 2-phenyl- and 2-(41-carboxyphenyl) - 3 - (411 - aminophenyl) - 7 - hydroxy - 1 : 2 : 4 - naphthisotriazin - 9 - sulphonic acid, 2 - (31 - aminophenyl) - 6 - hydroxy - b  - naphthimidazol - 8 - sulphonic acid and 41 - aminophenyl - 5 - oxy - 7 - sulpho - 1 : 2 - naphthothiazole.  End components specified are 8-oxyquinoline and its 5-chloro-, 5- or 7-sulphonic acid and 7-carboxylic acid derivatives. The dyestuffs can be used for dyeing or printing, e.g. wool, silk, leather, cotton, linen, artificial silk or staple fibre of regenerated cellulose and in Example 5 cotton is dyed red by dyeing with 2 - amino - 1 - methoxy - benzene - 4 - sulphonic acid --> 2 - (41 - aminobenzoyl) - amino - 5 - naphthol - 7 - sulphonic acid --> 8-oxyquinoline and after-treating with an alkaline complex copper tartrate solution.  Specifications 166,033, [Class 2 (iii)], 406,778 and 455,274 are referred to.
Patent GB-437751-A (GB)
Title: Improvements in sieving machines
IPC: B07B1/00
Filed: 1934-05-05
Abstract: 437,751. Sifting-apparatus. SIMON, Ltd., H., and WATTS, G., Bird Hall Lane, Cheadle Heath, near Stockport, Cheshire. May 5, 1934, No. 13670. [Class 117] In a sieving-machine with the sieve or sieves vertical or almost vertical and reciprocated approximately horizontally, rebound surfaces are provided against which the material not passing through a sieve is thrown in its descent in order that it may be re-directed on to the sieve, and the rebound surfaces are also reciprocated but out of phase with the sieve. In the form shown, material fed in at m passes through the sieves a immediately or is re-projected towards them by the projections c on the members b which are reciprocated horizontally but out of phase with the vibrations of the screens a. Air entering at q passes upwards through the sieves and emerges at n but it may flow in the same direction as the material to be sifted. The parts c may be perforated to serve as additional sieves and a sieve cleaning device may be incorporated in the machine. The frames h, j for the sieves and members b respectively are vibrated by eccentries i, k.