baber/WOPTO huggingface dataset:
Patent GB-633823-A (GB)
Title: Colour photography
IPC: G03C7/333
Filed: 1945-10-16
Abstract: 633,823. Photographic colour development. GENERAL ANILINE & FILM CORPORATION. Oct. 16, 1945, No. 27059. Convention date, Nov. 10, 1944. [Class 98 (ii)] A reducible silver salt image is colour developed with an aromatic amino developing agent in presence of a colour coupler of one of the general formulµ wherein R is an aryl group, R 1  an alkyl or aryl group, X is an anion, and Y represents the atoms necessary to complete an aryl nucleus. The usual aromatic amino developing agents may be used. Compounds specified are 2-(4- sulphophenylazo) - 6 - methoxycoumarone and α-(4-sulphonaphthalene-1-azo)-benzoylmethylpyridinium chloride. A formula for a suitable developing solution is given, and examples of the addition of the compounds to the developing solution are also given. The Specification as open to inspection under Sect. 91 comprises also the use of couplers of the formula R 1 -N=N-R 2 , wherein R 1  is an aryl group and R 2  an aliphatic, aromatic, or heterocyclic group, containing a colour-forming group consisting of a reactive methylene or hydroxy divinyl group directly attached to the azo linkage. Compounds specified are 4-(4- sulphophenylazo )-1-phenyl-3 -methyl-5-pyrazolone, α-(4-sulphophenylazo)-acetoacet-2 : 4-dichloranilide, 4-phenylazo-1-(4-sulphophenyl)- 3-methyl-5-pyrazolone, 4-(4-sulphophenylazo)- 1-phenyl-3-amino-5-pyrazolone, 4-(4-sulphophenylazo) - -1 : 3 - diphenyl - 5 - pyrazolone, 2 - (4- carboxyphenylazo) - 3 - oxy - 5 - chloro - 7 - methylthionaphthene, 2 - (4 - sulphonaphthalene -1 - azo) - 3 - oxy - 5 - chloro - 7 - methylthionaphthene, ptolylazomalononitrile, α-(2-carboxyphenylazo)- p-nitrobenzylcyanide, α-(4-carboxyphenytazo)- o-nitrobenzylcyanide, α-(4-sulphophenylazo)-2- cyanacetylcoumarone, a-(4-arsonic acid phenylazo) - 2 - cyanacetylcoumarone, α - (4 - sulphophenylazo) - 2 - cyanacetylnaphthalene, α - (2- carboxyphenylazo) - benzoylacetonitrile, α - (4- sulphophenylazo) - benzoylacetanilide, α - (5 : 7- disulphonaphthalene - 1 - azo) - ethyl benzoylacetate, α-(2-carboxyphenylazo)-benzoylacet-ptoluidide, 4-(4-carboxyphenylazo)-α-naphthol, 5 - (4 - sulphophenylazo) - 8 - hydroxyquinoline, 5 - (2 - carboxyphenylazo) - 8 - hydroxyquinoline, 4 - (4 - sulphophenylazo) - 2 - phenylphenol, 2 - (4 - arsonic acid phenylazo) - 3 : 4 - dihydroxydi - phenyl, 4 - (4 - sulphophenylazo) - 2 - cyclohexyl, 4-phenylazo-1-hydroxy-2-naphthoic acid and 4-sulphophenylazo-1-hydroxy-2-naphthanilide. This subject-matter does not appear in the Specification as accepted.
Patent GB-208826-A (GB)
Title: Improvements in and relating to lever controlled valves, and the like
IPC: F16K31/26
Filed: 1922-10-07
Abstract: 208,826. Collins, G. A. Oct. 7, 1922. Ball and float valves; actuating-mechanism.- In a float- or other lever-operated valve, the lever is retained in position, without pins or cotters, by a rotatable cover plate, or by a pivoted weighted lever or a locking pin. The valve casing 4, Fig. 4, is provided with an inlet 5 and outlet 6, and with a valve plug 10 having a washer 22. The lever 13, Figs. 1 and 6, is pivoted at 12 and carries another pin 14 which operates the plug 10. The lever is retained in position by a cover plate 18 pivoted eccentrically on a screw 19 so that it may be turned out of position to remove the lever. The application to a valve in which the plug moves horizontally is also described. In a modification, Fig. 11, the lever 13 is retained in position by a pin 18 passing through a. lug 20. In another modification, the, lever is retained by a pivoted wire, having a counterweight which keeps it in the vertical position.
Patent GB-627830-A (GB)
Title: Process for the propagation of yeast, especially baker's yeast
IPC: C12N1/18
Filed: 1945-10-17
Abstract: In the cultivation of yeast, especially bakers' yeast, in a nutritive solution, such as molasses, supplied to a storage container in batches of different quality, the amount stored being large relatively to the individual batches supplied or consumed on each occasion, each batch supplied to the container is intermixed intimately with the amount already stored in the container before withdrawal of a batch for the yeast propagation. Substances important for the growth of yeast may be added to the nutritive solution.
Patent GB-508161-A (GB)
Title: Apparatus for the continuous separation of the constituents of different specific weight of a fluid mixture, and particularly a gaseous mixture
IPC: B04B5/08
Filed: 1938-09-19
Abstract: 508,161. Centrifugal gas - separators. GHIELMI, S. Sept. 19, 1938, No. 27249. [Class 23] Gaseous mixtures are divided into their constituents by the combined effect of centrifugal force and suction produced by apparatus having a munber of rotary impellers which increase in diameter from the inlet. In the form shown, three impellers 1, 0, 5 are employed and they may be rotated at the same or different speeds by the motor 12 through the gearing in the box 11. The impellers are housed in casings of appropriate diameter, and outlets 8, 9 are provided from the casings 4,. 6 which enclose the impellers 0, 5. Air enters by the series of slits 7, and as it passes through the apparatus the heavier oxygen particles tend to move to the periphery, while the lighter particles being affected more by suction than by centrifugal force, tend to move to the last impeller 5. The oxygen is therefore discharged through the outlet 8 and the remainder through the outlet 9.
Patent GB-1203540-A (GB)
Title: A process for manufacturing 6-nitro-2-oximinohexanoic acid and derivatives thereof
IPC: F24D19/04
Filed: 1969-05-29
Abstract: 1,203,540. 6 - Nitro - 2 - oximino hexanoic acid. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 29 May, 1969 [30 May, 1968], No. 27283/69. Heading C2C. 6-Nitro-2-oximinohexanoic acid, its salts, and amides of the general formula where R 1  and R 2  are hydrogen, alkyl, cycloalkyl or aryl, may be prepared by treating 6-nitro-2 oximino-1-cyclohexen-l-ol with water and a base selected from: (a) alkali metal and alkaline earth metal hydroxides, or their salts having a dissociation constant less than 1.3 x 10<SP>-3</SP>, (b) ammonia, and primary and secondary amines and (c) tertiary amines, these reagents yielding respectively salts from (a), amides from (b) and salts from (c). The free acid is obtained by conventional procedures. Examples detail the preparation of the freee acid, its sodium and potassium salts and the amide as a dihydrate. 2 - Nitro - 6 - oximino - 1 - cyclohexen - 1 - ol is prepared from 2-nitrocyclohexanone by reaction with an alcoholate or sodium amide followed by reaction with an alkyl nitrite, or by reaction of 2-oximinooyclohexanone with an alkyl nitrite in the presence of an alcoholate.
Patent GB-1335131-A (GB)
Title: Water-resistand microcapsular opacifier system and products
IPC: B01J13/16
Filed: 1971-06-11
Abstract: 1335131 Nlicrocapsules; paint opacifiers CHAMPION PAPER CO Ltd 11 June 1971 [17 July 1970] 27580/71 Heading B8C Oil-containing microcapules are produced by emulsifying a solution or dispersion in the oil to be encapsulated of a partially condensed, thermosetting condensation product in an aqueous phase containing a water-soluble polymer capable of reacting with the condensation product to form a solid, cross-linked product, and subjecting the emulsion to conditions, e.g. elevated temperature, whereby such a reaction is brought about to produce oil-containing microcapsules. Preferably, the oil is such that it can be removed from the microcapsules, e.g. by heating, to give air-filled microcapsules, which find application as opacifiers in paints and the like. Suitable condensation products are formaldehyde-melamine, -urea and -phenol precondensates. Suitable water-soluble polymers are polyvinyl alcohol, methyl cellulose and styrene-maleic acid copolymer.
Patent GB-214194-A (GB)
Title: Three-phase rivet heater
IPC: H05B3/00
Filed: 1923-11-02
Abstract: 214,194. Soc. Anon. ElectricitÚ Electro-MÚcanique. April 11, 1923, [Convention date]. Heating by electricity.-A three-phase rivet heater is adapted to heat two rivets for every phase, that is six rivets simultaneously. The rivets are held between copper blocks 7 and the limbs 6 of the secondary 5, the blocks being pivoted at each end to treadle-operated rods 15. The primary coils 21 are connected to the supply through a two-way commutator and a circuit breaker, the commutator making it possible to reduce the power for small rivets.
Patent GB-1436026-A (GB)
Title: Article of hollow cross-section and a method of amking it
IPC: B32B5/28
Filed: 1974-06-21
Abstract: 1436026 Shaped fibre-reinforced plastics laminates DORNIER GmbH 21 June 1974 [5 July 1973] 27617/74 Heading B5N Hollow cross-section fibre-reinforced plastics articles 2, 9 comprise fibrous laminae having adjacent edges which do not overlap, the laminae providing fibres disposed longitudinally, laterally and diagonally of the article axis. The laminae may be impregnated with plastics before or after placing about a core 1, from which the article is removed after hardening. Shaping about the core may be assisted by a tool or vacuum bag. In Fig. 1 the core has a groove 3 containing a rubber strip 4; removal of the strip leaves a space for the insertion of a lever to remove the article. In Fig. 3 the core is supported at 12 on a base 13 to permit the formation of flanges 14, 15. Fig. 2 (not shown) illustrates a circular cross-section article. The said adjacent edges may abut or be spaced at 6. The article may comprise laminae having, successively, longitudinal, lateral, diagonal and diagonal orientation, the latter two laminae being oppositely disposed. Two laminae may be combined in one fabric.
Patent GB-1277313-A (GB)
Title: Method of forming a panel having a compound curvature and automobile headliners made thereby
IPC: B27D1/08
Filed: 1970-06-08
Abstract: 1277313 Moulding fibreboard or hardboard; car headliners; bending wood WOODALL INDUSTRIES Inc 8 June 1970 [16 June 1969 (2)] 27690/70 Headings B5A, B5L and B5N [Also in Divisions B6 and B7] A panel having a compound curvature and made from fibreboard or hardboard is made by perforating a flat sheet at least in the areas to be curved with a plurality of holes, wetting the sheet in those areas, applying steam to those areas to render them formable and finally pressing the sheet to shape between heated dies and drying the pressed panel. The weight per unit area of the panel is greatest in the areas of greatest curvature and movement of material into the apertures in those areas enables a small radius of curvature to be obtained without crumbling or tearing. The apertures in the areas of greatest curvature are therefore smaller than those in other areas. To accommodate for this reduction the radius of the perforations may be greater in those areas of the sheet to be given the greatest curvature or there may be more perforations per unit area in such regions. In the preferred embodiment, a fibreboard panel is perforated over the areas to be curved, cut to the desired shape, preheated, sprayed with a wetting agent, steamed in press and finally shaped between the curved platens of a heated press and allowed to dry upon a correspondingly shaped support. The article, for example, an automotive headliner, may be internally coated with a paint or the like or may be covered with a foam-backed fabric layer of, for example, nylon backed by polyurethane, the foam backing being bonded to the headliner by a resin adhesive.
Patent GB-955816-A (GB)
Title: Optical crown glass
IPC: C03C3/19
Filed: 1960-08-11
Abstract: An optical crown glass of low dispersion and a refractive index within the range 1.53-1.68 comprises up to 78% (preferably 14-78%) boron orthophosphate, 6-84% barium and/or strontium pyrophosphate, and up to 48% (preferably 2-48%) of an oxide component selected from one or more of alkali or alkaline earth metal oxides and the oxides of Al, Zn, Cd, La, As, Sb, Pb, and Bi. The purified raw materials are melted at a temperature within the range 1200-1300 DEG  C. Many examples of the composition are given.
Patent GB-382729-A (GB)
Title: Improvements relating to the production of photographic prints
IPC: G03B27/36
Filed: 1931-10-07
Abstract: 382,729. Photographic projectionprinting apparatus. FRANK, T. K., 10, Mile End Road, South Shields, Co. Durham. Oct. 7, 1931, No. 27867. [Classes 98 (i) and 98 (ii).] In order to enable the relative sizes of parts of a photographic image to be altered during printing, a copying or other camera of the automatic focusing type is combined with an opaque screen mounted in front of the sensitized surface and having one or more slits through which the sensitized surface is exposed by moving the screen across it during the exposure, or by moving the object and sensitized surface simultaneously in opposite directions. In the form shown, the sensitive surface b, Fig. 1, is successively exposed through an adjustable slit d in the screen c which is moved across the surface b by gearing f driven from the electric motor g. The camera a is of the automatic focusing type. In a modification the screen c is stationary and the sensitive surface b is moved on a carriage across the table, a second electric motor being provided to move the negative in synchronism. In a further modification as applied to a camera for making reproductions direct from an object, the camera a is mounted on brackets n sliding on guide rods n<1> on a base q and is moved by a threaded shaft p operated by a hand-wheel p<2>. The lens board u is slidable on the base r of the camera and is moved independently of the camera by pins u<1> engaging cams t on a shaft s having slotted arms engaging pins on a block mounted for longitudinal movement on the threaded shaft p, the cams t being designed to maintain correct focus when the camera is moved.
Patent GB-636275-A (GB)
Title: Improvements in the manufacture of flexible strip material
IPC: A44C5/00
Filed: 1947-10-20
Abstract: 636,275. Straps and bands. DURATUBE & WIRE, Ltd., and VEIT, J. Oct. 20,1947, No. 27963. [Class 109] [Also in Groups VII and XVI] Flexible thermoplastic strip material is formed with one or more rows of longitudinal domes 1, by stamping or embossing. The domes may be formed on one or both sides of the material and are so formed and spaced apart that they extend substantially to both longitudinal edges of the strip. The material may be used for belts, braces, wrist straps and like articles.
Patent GB-481978-A (GB)
Title: Improvements in or relating to padlock and staple fastening devices
IPC: E05B67/36
Filed: 1936-10-15
Abstract: 481,978. Padlocks. TIBBLES, H. J., and RELY-A-BELL BURGLAR & FIRE ALARM CO., Ltd. Oct. 15, 1936, No. 28063. [Class 44] A staple 9 is provided with grooves 12 in its side faces so that a staple-receiving slot 3 in a padlock, which is of less width than the thickness of the staple, may be used. The bolt 4 of the padlock passes across the slot and engages the staple and is connected by an arm 5 to a key actuated plate 6, which is so limited in its movement that the key can only be withdrawn when the bolt is shot. The rear plate 2 is cut away in the region of the slot 3 to a greater depth than the plate 1 leaving a small tongue which co-operates with the auxiliary groove 13 cut in the staple 9.
Patent GB-225240-A (GB)
Title: Improvements in and relating to starting devices for internal combustion engines
IPC: F02N13/00
Filed: 1924-11-24
Abstract: 225,240. Herzmark, N. Nov. 23, 1923, [Convention date]. Starting.-In a device in which a charge of combustible mixture or carburetted compressed air is forced through a distributor into the cylinders on the expansion and compression strokes, separate chambers A, A<1> for the compressed air or mixture are connected respectively with the cylinders on the expansion stroke and those on the compression stroke, so that before the firing of the starting charge the pistons are brought automatically to a postion substantially corresponding to equal volumes in the cylinders. As shown, the chambers A, A<1> are supplied with compressed air by a hand pump B, or by a reservoir connected to a pipe C<3>, and are connected by pipes F, F<1> to an engine-driven distributor G. Pipes H - - H<3> on the distributor casing each lead to an engine cylinder or to a group of cylinders on the same stroke, and grooves M - - M<3> in the distributor are so arranged that one or other of the pipes F, F<1> is connected to the cylinders on the expansion and compression strokes. Liquid fuel is supplied from a tank I to cocks D, D<1> connected by a handle J, by which they are turned into position to receive fuel and returned to the position shown. The fuel then runs on to the closed valves E, and these are opened by depressing a bar K to supply the air and fuel to the cylinders.
Patent GB-663685-A (GB)
Title: Improvements in or relating to continuous cycle absorption refrigerating machines
IPC: F25B33/00
Filed: 1949-11-02
Abstract: 663,685. Refrigerating. EGLI, A. R. Nov 2, 1949 [Oct. 8, 1949]; No. 28082/49. Class 29 In a continuous cycle absorption refrigerating system, the generator, two forms of which are shown in horizontal section in Figs. 3 and 4, comprises vertically-disposed boiler and pump tubes 3, 4 respectively a n d a heating source 2 which is spaced from the pump tube 4 which is at least partially surrounded by a heat-conducting element 10 in contact with the source 2 and adapted to be displaced along the tube 4 to vary the amount of heat supplied to the pump.
Patent GB-930401-A (GB)
Title: Improvements in or relating to motion control systems
IPC: H02P7/29
Filed: 1959-08-17
Abstract: 930,401. Automatic speed control. GLOBE INDUSTRIES Inc. Aug. 17, 1959, No. 28094/59. Class 38 (4). When a negative pulse is applied to the base of transistor 22 from constant frequency source 58, the transistor 22 conducts to render transistor 20 non-conductive. Transistors 18, 16 are then turned on to energize motor 1, the circuit remaining stable in this condition until a voltage is induced in coil 2. This coil, which is associated with the slotted armature of the motor or a toothed disc driven by the motor, provides pulses at a frequency proportional to the motor speed. The voltage from the coil 2 is applied to the base of transistor 14 which conducts to turn off the transistors 18, 16, so that the motor is de-energized. The circuit remains stable in this opposite condition until another negative pulse is applied to the base of transistor 22. A standard frequency source which may be used comprises means for preventing synchronization at an undesired harmonic of the reference frequency. When the motor is operating and the transistor 20 is turned off, transistor 50 conducts so that there is no potential difference between the bases 56, 57 of transistor 54. This allows capacitor 64 to be charged through resistor 60 until a pulse from feedback coil 2 de-energizes the motor and renders the transistor 20 conductive. Transistor 50 is then turned off whereby transistor 54 conducts to discharge the capacitor 64 and to reenergize the motor. If the motor is operating too slowly, the capacitor 64 becomes fully charged and, at the instant the motor is deenergized, it is re-energized by the discharge of the capacitor. The motor thus accelerates until one of the off-pulses occurs before the capacitor 64 can discharge. The oscillator 58 may be synchronized with a further constant frequency source 70.
Patent GB-1044347-A (GB)
Title: Ultrasonic machining
Inventor: MECHETNER BORIS KHAIMOVICH
IPC: B24B1/04
Filed: 1963-07-16
Abstract: 1,044,347. Abrading. EXPERIMENTALNY NAUCHNO - ISSLEDOVATELSKY INSTITUTE METALLOREZHUSHCHIKH STANKOV. July 16, 1963. No. 28139/63. Heading B3D. A method of ultrasonic machining comprises supplying a suspension of abrasive under pressure by a pump to the working zone. In the apparatus for carrying out the method, the pump 2 supplies the abrasive suspension through a duct 3 to a hole in the tool 4 to the zone at which the tool is working on a workpiece 5 held in a vessel 6. The suspension is returned by a duct 7 to a reservoir 1 provided with a stirring pump 9. The abrasive may be boron carbide and the pumping pressure 2 atmospheres. The suspension may be pumped to the working zone through a hole in the workpiece.
Patent GB-241595-A (GB)
Title: An improved appliance for printing or reproducing maps, drawings, designs, pictures, and the like
IPC: B41K1/22
Filed: 1924-07-23
Abstract: 241,595. Kings, A. T., and Simons, B. July 23, 1924. Rotary machines.- A rotary hand-operated printing-device, of the kind in which the printing- roller is 0 detachably mounted in a handle and is operated on by a spring which returns it to a set position after the printing has been effected by moving the roller over the paper is constructed with a spring-controlled drum g on one of the arms of the yoke-shaped handle c, and the printing-roller is detachably mounted by means of spigots bone of which is received in a bush in the member c<2> of the yoke. The other spigot is received in the forked end of the yoke member c<1> and is held therein by a pivoted catch e. The roller is fitted with a pin f which is received in a radial slot in the drum g, and this pin limits the extent of rotation of the roller and serves as a zeroizing stop. A stop h on the drum g limits the movement of the drum when the roller is detached. A number of detachable rollers may be employed, or a shell a may be fitted with detachable sleeves a<2> of rubber, &c., formed with a raised design a<1> which is produced thereon by etching, or moulding. The apparatus is especially adapted for use in schools. The printing may take place through an ink ribbon, a means for applying ink to the part a<1> may be fitted to the yoke. This yoke may be formed of bent wire &c. A box for packing a handle and a number of rollers may be provided.
Patent GB-188912-A (GB)
Title: Brackets for supporting curtain rods, window blind rollers and the like
IPC: A47H5/09
Filed: 1921-10-24
Abstract: 188,912. Courtois, O. Oct. 24, 1921. No Patent granted (Sealing fee not paid). C u r t a i n s , suspending; brackets.- Brackets for supporting curtain rods and window-blind rollers, comprise a member 8, shaped as shown a rear attaching flange 11, and lateral ears 14 in which a curtain-rod 17 is pivoted, the upper edge 9 of the bracket being bent upon itself to reinforce it. Notches 10 are formed in the upper edges 9 to receive the ends of a window-blind roller. The bracket is adapted to be constructed from a single blank of material cut as in Fig. 3, and bent along the dotted lines.
Patent GB-757221-A (GB)
Title: Improvements in and relating to electric heating panels
IPC: F24D13/02
Filed: 1953-10-14
Abstract: 757,221. Electric heating panels. GENERAL ELECTRIC CO. Oct. 14, 1953 [Oct. 14, 1952], No. 28349/53. Class 39(3). An electric heating panel comprises front and back metal members 10, 11 gas-tight sealed around their edges to form a chamber 13, and a heating element 15 insulated from the member 10 by mica or cloth made of silicon dioxide fibres 14. A blanket 21 of aluminium oxide powder or fibre, high-melting slag wool, mica, or silicon dioxide granules or fibre, overlies the element 15, and thermal insulation 22 of glass fibre or slag wool occupies the space between the blanket 21 and the metal member 11, i.e. more than half the space between the members 10, 11. The insulation 22 may be formed as disclosed in Specification 715,175 (Groups XIII, XXIII) and Specification 715,174 (Groups XI, XIII), individual fibres thereof preferably having a diameter of less than one thousandth of an inch and being packed to a density in excess of ten pounds per cubic foot. The chamber 13 is preferably evacuated to a pressure of less than one millimetre of mercury, e.g. ten to one hundred microns, and during evacuation the panel is heated to drive off occluded gases of the materials within the panel. Carbon steel having a porcelain enamel finish or a coating of resin, corrosion resistant alloys and stainless steel are specified as materials for the members 10, 11. A modification, Fig. 2 (not shown), has a concertina form of side wall which is stated to reduce heat losses along the edges of the panel. Specification 342,684 also is referred to.