baber/WOPTO huggingface dataset:
Patent GB-498484-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/82
Filed: 1937-07-09
Abstract: 498,484. Cathode-ray tubes. COSSOR, Ltd.,A. C., SHELTON, E. E., and WILLIAMS, B. C. FLEMING-. July 9, 1937, No. 19087. [Class 39 (i)] In a cathode-ray tube having a fluorescent screen or acting as an iconoscope or beam valve, the control electrode 5 at cathode potential or negative thereto is dished towards the cathode 4 and the anode 6 is at the highest positive potential of any electrode in the tube ; a further electrostatic or magnetic lens is used to focus the beam on the target. As shown the electrode 5 has conical dishing but it may be straight, curved, or as shown in Fig. 6, spherical. The relative sizes of (i) the aperture in the anode 6, (ii) width of dishing, (iii) depth of dishing, (iv) aperture size 5d, and (v) spacing of anode from electrode 5 are specified. The cathode 4, as shown in Fig. 6, is carried by mica plates fixed as chords in a cylinder 14 spot welded to the electrode 5, the position of the cylinder 14 in the electrode 5 being determined by a jig. According to the Provisional Specification the anode 6 may be at 4500 volts, the next electrode forming part of the second lens at 1000 volts and the final anode at 4500.
Patent GB-865614-A (GB)
Title: Improvements in or relating to lathe or like work centres
IPC: B23B23/02
Filed: 1958-06-14
Abstract: 865,614. Lathe &c. centres. JONES, W. C. June 10, 1959 [June 14, 1958], No. 19120/58. Class 83 (3). A lathe or like centre 1 has a bore 6 which is outwardly tapered at the pointed end of the centre. A removable sharpened tip-member 10 of hard material such as tungsten-carbide, highspeed steel or ceramic, fits into this taper to complete the centre. The tip-member may have a separate hard metal &c. tip brazed on to a tapered shank of less expensive material.
Patent GB-383920-A (GB)
Title: Process for the production of 8-oxy derivatives of quinoline
IPC: C07D215/26
Filed: 1932-07-06
Abstract: 8-Oxyquinoline-5-sulphonic acid is manufactured by heating 8-halogenquinoline-5-sulphonic acid, which is prepared by sulphonating 8-halogenquinoline or by the Skraup method from 2-halogen-1-aminobenzene-5-sulphonic acid, or a salt thereof, e.g. the calcium salt, with alkaline agents, either without pressure in concentrated solution or in a pressure vessel.  8-Oxyquinoline is manufactured by splitting off the sulphonic group from the product, e.g. by heating with dilute acids or by heating with water, advantageously to about 180 DEG  C.  In examples: (1) 8-chloroquinoline is heated with fuming sulphuric acid and the sulphonic acid is heated with caustic soda at 200-205 DEG  C. in an open vessel or with less concentrated caustic soda at 150-160 DEG  C. in a pressure vessel, producing the oxyquinolinesulphonic acid, which is heated with water at 100 DEG  C. in a pressure vessel to yield 8-oxyquinoline; (2) 2-chloro-1-aminobenzene-5-sulphonic acid is heated at 130 DEG  C. with glycerine, sulphuric acid and nitrobenzene to produce the chloroquinolinesulphonic acid which is converted as in (1).  8-Bromoquinoline is also specified as a starting material.
Patent GB-1477977-A (GB)
Title: Apparatus for forming an absolute address for accessing a memory of a computer
IPC: G06F12/10
Filed: 1975-05-07
Abstract: 1477977 Virtual address translation directory CONTROL DATA CORP 7 May 1975 [7 June 1974] 19199/75 Heading G4A In a virtual-to-real page address associative directory associative words are stored in sequentially ordered registers AR00-AR15 arranged so that each time an associative word is used it is shifted to the highest ordered register AR00 and the other associative words which were previously above the selected word are moved down one position. If, on comparison of the virtual page identifier of a required virtual address with that of the associative words in registers AR00-AR15, no matching word is found, a search is made through further associative words stored in a memory table, the matching word being placed in AR00 and the word initially in register AR15 being placed above the further associative words in the memory table. The search operation is performed by temporarily moving the contents of AR15 (W15) to AR00 and transferring the remaining register contents (W00-W14) to memory. Further associative words are then read from memory into the registers AR until a matching word is found. Non-matching words are returned to the memory table now headed by W15 and words W00-W14 are loaded into registers AR1-AR15, the matching word being held in AR00. The registers are provided with by-pass paths to enable the necessary reordering of words to take place. In addition to the virtual and real page identifiers, each associative word includes a usage code and a lock field. The usage code indicates end of table (EOT). a null word (no corresponding real page), whether the page is large (65, 536 words) or small (512 words) and whether or not the page has been referenced or altered by the CPU. If a null code is present in registers AR, the word with that code is transferred to AR00 instead of W15 before making a memory table search, the null word then being over-written by words loaded from the memory table. A null code is entered at the position in the memory table previously occupied by the matching word. The lock code of the matching associative word must match one of four lock codes for specified memory access operations to be permitted.
Patent GB-623561-A (GB)
Title: Improvements in or relating to a cooler
IPC: F28F9/22
Filed: 1946-06-27
Abstract: 623,561. Cooling radiators for aircraft &c. CLIFFORD MANUFACTURING CO. June 27, 1946, No. 19220. Convention date, July 6, 1945. [Class 64(iii)] In an aircraft oil or other cooler comprising a shell 30 surrounding and secured to a core of many thin-walled closely spaced tubes 10 which are held at their ends in header plates 12 and are divided into groups by baffles 18 extending across the core to form axial flow passes, the baffles each have resilient side portions 22 slidably engaging the shell throughout their lengths and one edge sealed, e.g. by neoprene sealing strips 26, against opposite header plates alternately, a passage 24 for the medium to be cooled being provided at the opposite edge. The resilient side portions 22 are of thinner metal than the rest of the baffle, and the latter has pressed-out projections to space it from the tubes. The header plates 12 have flanges 14 provided with bosses 44. The core is held in the shell by rings 50 and associated gaskets 48 clamped against the ends of the shell and flanges 14 by nuts 52 and bolts 46 which engage in the bosses 44. Loose soft tubes fill spaces between the core and the shell to prevent short-circuiting by the oil being cooled. Specification 570,900, [Group XXII], is referred to. The Specification as open to inspection under Sect. 91 comprises also baffle plates of the same construction used in oil coolers with tubes with hexagonal ends soldered together. The spaces between groups of tubes to receive the baffles are formed either by corrugated strips located between the hexagonal ends of two rows of tubes, or by straight strips located between two rows formed with pentagonal ends. To enable the core to be removed from its shell, its ends are encircled by rings over which the shell is slipped. This subjectmatter does not appear in the Specification as accepted.
Patent GB-256637-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/42
Filed: 1926-08-06
Abstract: 256,637. International General Electric Co., Inc., (Assignees of Allgemeine Electricitõts Ges.). Aug. 6, 1925, [Convention date]. Transformers.-In current transformers of the type in which the high tension conductor is passed through a pair of insulating bushings a to form a primary winding b on the centre limb of a three limbed core c, means are provided for suppressing the flux due to 'the presence of one more conductor in one opening of the core than in the other. Such means may comprise an auxiliary winding z<1> arranged on one of the end limbs of the core, and connected in series with the second winding z on the cen'tre limb. Alternatively a short circuited auxiliary winding may be arranged on one or both the end limbs, and the core may be made of greater cross section on that side through which the extra conductor of the primary windiing is passed.
Patent GB-695804-A (GB)
Title: Improvements in and relating to the separation of di-isopropylamine from water and iso-propanol by azeotropic distillation
Inventor: CHALLIS ANTHONY ARTHUR LEONARD
IPC: C07C29/82
Filed: 1950-08-04
Abstract: Di-isopropylamine is isolated from mixtures containing it together with isopropanol and water, by submitting the mixture to fractional distillation in the presence of a hydrocarbon or hydrocarbonfraction, which is free from olefinic or acetylenic unsaturation and boils within the range 68 DEG -75 DEG C, whereby a hydrocarbon-isopropanol-water ternary azeotrope and a hydrocarbon-isopropanol binary azeotrope are distilled over in that order, leaving purified di-isopropylamine, together with any excess hydrocarbon, in the still.  The process may be applied in the separation of di-isopropylamine from the products of the amination of isopropanol.  The hydrocarbon may be methyl cyclopentane or n-hexane. A suitable hydrocarbonfraction may be obtained by isolating a 68 DEG -75 DEG C cut from the products of the destructive hydrogenation of creosote oil, and treating it with sulphuric acid.  In an example, one litre of a mixture comprising di-isopropylamine (85.7 per cent), water (6.3 per cent), isopropanol (5.5 per cent) and mono-isopropylamine (2.5 per cent) was distilled with 250 ml. of methyl cyclopentane in a fractionating still equivalent to 70 theoretical plates.  The fraction distilled over between 37 DEG  and 58.7 DEG C comprised 83 per cent mono-isopropylamine.  The ternary azeotrope distilled over between 58.7 DEG  and 58.9 DEG C.  This was condensed and the condensate was passed to a decanter maintained at 45 DEG C, whereupon it separated into two liquid layers.  The upper layer was returned to the still; and the lower layer, which contained 92 per cent water, was discarded.  The binary azeotrope, which contains 21 per cent isopropanol, distilled over between 58.9 DEG and 64 DEG C (reflux ratio 40:1).  There were then obtained two small fractions containing 98 per cent methyl cyclopentane and 80 per cent di-isopropylamine was distilled over between 84 DEG  and 84.4 DEG C. The methyl cyclopentane may be recovered from the binary azeotrope either by washing it with water, or by submitting it to fractional distillation in the presence of water.  In the latter case, the condensed distillate is passed to a decanter at a temperature not exceeding room temperature.
Patent GB-638855-A (GB)
Title: Improvements in and relating to cooking utensils
IPC: A47J37/06
Filed: 1948-07-21
Abstract: 638,855. Glass grillers. DEMA GLASS, Ltd., (formerly DEMA SUPPLIES, Ltd.), and KUBLIN, W. W. July 21, 1948, Nos. 19523 and 32854. [Class 28(i)] A food supporting grill is made of heatresistant glass having a series of parallel sharp triangular-shaped ridges 14 standing up from a base 10 which has a surrounding channel 16 to collect fat from the furrows. The channel 16 leads to a pouring lip 20. The furrows themselves may have lower secondary wider angled ridges 24, Fig. 3, which may slope from the middle to the sides. The ends of the main ridges are bevelled off at 22. A detachable handle 26 is provided.
Patent GB-596625-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/04
Filed: 1945-07-31
Abstract: 596,625. Condensers. STANDARD TELEPHONES & CABLES, Ltd., BARNARD, R. M., and PAINE, J. July 31, 1945, No. 19594. [Class 37] An electric condenser comprises a nest of concentric metallic tubes 1, 2, 3, e.g. of copper, forming the electrodes, supported by insulators, the annular spaces between electrodes being filled by a liquid dielectric. The insulators in the form of tubes, preferably of low-loss ceramic, are arranged in pairs 6, 7 and 8, 9 respectively, each tube of a pair being at right angles to its partner and to the longitudinal axis of the condenser, and each insulator tube is a good fit in all metallic tubes except the outer. A liquid dielectric fills the annular spaces between the metal tubes and is retained by end caps 13 and 14, having concentric flexing rings, soldered to the outer tube 1. In a modification, each set of electrodes of like polarity has independent insulator tubes which pass through clearance holes in the metallic tubes of opposite polarity and thus a temperature compensating action is possible. Glycerol, aniline, or hydrocarbon oils of viscosity between 5 and 200 centipoises may be employed as dielectrics.
Patent GB-639378-A (GB)
Title: A new or improved machine for ripping and polishing drawing dies
IPC: B24B5/48
Filed: 1948-07-23
Abstract: 639,378. Polishing drawing-dies. FOX & CO., Ltd., S., and MARSHALL, J. July 23, 1948, No. 19749. [Class 60] A machine for polishing drawing dies of non-circular section comprises a holder 4 for the die 5, a holder 7 for a lapping mandrel 6, means for reciprocating the mandrel holder, biassing means for pressing the lap 6a against the inner surface of the die, and means for revolving the biassing means. The biassing means consists of a spring 17 which is provided with a ring loosely embracing the mandrel and connected by a calibrated screw-adjustment 40 to an arm 16. The mandrel holder is mounted in a guide 8 and connected with a crank-pin 10 of adjustable throw. The crank-pin and the arm 16 are driven through worm drives, variable-speed gear boxes 21, 22 and bevel gears from an electric motor 18, while the holder 4, which is a self-centring three-jaw chuck, is non-rotatable. Since flexure of the mandrel influences the longitudinal section of the die, the guiding and driving means for the mandrel holder are made adjustable to allow the use of mandrels of different lengths.
Patent GB-1010748-A (GB)
Title: Subbing of hydrophobic film bases
Inventor: SHEPHARD BASIL ROBERT
IPC: C08J7/056
Filed: 1963-05-17
Abstract: A film base material consists of a film of synthetic linear polyester of highly hydrophobic character, e.g. polyethylene terephthalate, polycarbonate or polycarbonate-urethane copolymer, having superposed thereon a layer (A) directly adherent to the film and consisting predominantly of a polyester amide formed from one or more dicarboxylic acids, including isophthalic or terephthalic acid, combined with one or two alkylene glycols and an alkylene diamine the latter comprising 5-30 mole per cent of the total molar amount of glycols and diamine or a polyester-oxazoline formed from one or more dicarboxylic acids, including isophthalic or terephthalic acid, combined with one or two alkylene glycols and either 4,4-dihydroxymethyl 2-substituted oxazoline-2 or a N-aroyl or N-acyl tris- (hydroxymethyl) amino-methane, the oxazoline-2 derivative or the derivative of tris- (hydroxy-methyl) amino methane comprising 5-30% of the total molar amount of the dihydroxy constituents of the polyester-oxazoline, and a layer (B) consisting predominantly of one of the following: (i) a partially hydrolysed vinyl chloride-vinyl acetate copolymer; (ii) cellulose nitrate; (iii) a copolymer of methyl methacrylate with an a -b  unsaturated acid such as itaconic or maleic acid, containing free carboxyl groups; and (iv) a copolymer of styrene and maleic anhydride in admixture with polyvinyl acetate optionally containing some free hydroxyl groups.  The mixture of dicarboxylic acids e.g. isophthalic acid, terephthalic acid, or both, optionally with one or more other dicarboxylic acids e.g. phthalic, sebacic, adipic, and succinic acids, may contain 30-90 mole per cent of isophthalic acid.  The elkylene glycol may contain up to 10 carbon atoms, e.g. ethylene 1,2 glycol, propylene 1,2 or 1,3 glycol, butylene 1,4 glycol or hexylene 1,6 glycol.  The diamines may be straight or branched chain alkylene diamines e.g. ethylene 1,2-diamine, propylene 1,2- or 1,3-diamine or hexylene-1,6-diamine. The oxazoline may be a compound of the formula <FORM:1010748/B1-B2/1> where R is a linear or branched chain alkyl, alkenyl, aralkyl or p aryl group, e.g. 4,4-dihydroxy methyl-2-methyl-oxazoline-2.  A layer of gelatin emulsion e.g. a gelatino silver halide photographic emulsion, or a layer of partially hydrolysed polyvinyl acetate, which may contain a light sensitive diazonium compound, may be superimposed on layer (B).
Patent GB-1515954-A (GB)
Title: Display apparatus
IPC: G01D7/08
Filed: 1976-05-13
Abstract: 1515954 Display apparatus HITACHI Ltd 13 May 1976 [16 May 1975] 19776/76 Heading G4H Display apparatus comprises a plurality of inputs for receiving respective data V 1 -V n , switching means 111-11 n  for selecting an input, a common terminal A to which selected data is fed, means 41 for supplying a reference voltage, means 31-3(m+1) for dividing the reference voltage into predetermined voltages VS31-VS3m, and light emitting diodes 521- 52m connected between terminal A and respective output terminals of the voltage divider. The display may be loacted on a car instrument panel for displaying speed, temperature, fuel level, &c. Each voltage VS3i may represent a predetermined fraction of a maximum value, and the arrangement allows comparison of the input value with voltages VS3i and display of the result to be combined, since all those diodes connected to voltages VS3i less than the input value will light up (or vice-versa if the diodes are connected in reverse). The reference voltage range may be selected by resistors R 4  and switches 121-12 n  to correspond to the selected input. All switches may be controlled manually or by the outputs from registers, counters, &c. Semiconductor switches SW1-SW n  may be used.
Patent GB-1080202-A (GB)
Title: Improvements in ovens
Inventor: JONES RONALD EDWARD
IPC: B01L7/00
Filed: 1965-05-11
Abstract: 1,080,202. Ovens. M.E.L. EQUIPMENT CO. Ltd. April 21, 1966 [May 11, 1965], No. 19813/65. Headings F4B and F6W. An oven, particularly for the controlled heating of gas chromatography samples, has a centrifugal fan 5 and electric heating element 7 arranged in a closed circuit with the oven chamber 3. In order to cool the chamber 3 for the reception of a fresh sample, a flap 6 carrying the element 7 is pivoted to admit air to the chamber 3, the fan 5 delivering air direct to the atmosphere over the element 7, which may be disconnected by movement of the flap 6. The air entering the oven may be cooled or it may flow over the disconnected heating element.
Patent GB-418644-A (GB)
Title: Improvements in or relating to shipping slings for motor vehicles
IPC: B66C1/20
Filed: 1934-07-06
Abstract: 418,644. Lifting-cradles. DEROSSI, A., 4, Piazza Ponterosso, Trieste, Italy. July 6, 1934, No. 19891. Convention date, July 6, 1933. [Class 78 (iv).] A sling or cradle for lifting motor vehicles, shown in plan, Fig. 2, comprises four carriers m suspended by ropes L from the ends of crossed arms b, and four cross-bars u spanning the carriers. The cradle is lowered over the vehicle with the carriers alongside the wheels, the cross-bars are placed in position against the wheel tyres so that on hoisting the wheels are supported on the parts v of the cross-bars u. Each carrier, Fig. 3, comprises a base n and a top bar q movable vertically on guides r<1>, r<11> and connected with the ropes l by levers and links so that on hoisting the bar q is forced down and holds the cross-bars in place in the notches o. The bar q is raised by a spring r when the cradle Is set down. The crossed arms b are adjustable about the pivot c.
Patent GB-237117-A (GB)
Title: A new or improved reflex camera
IPC: G03B19/12
Filed: 1924-08-25
Abstract: 237,117. Woosnam, A., (Ihagee Kamerawerk Steenbergen & Co.). Aug. 25, 1924. Cameras, reflex ; cameras with baseboard folding. - A folding reflex camera, in which the lens carrier is moved in its plane as the camera is closed up, has the free front end of one 11 of a pair of lazy tongs extensors 10, 11 connected to the lens carrier 5 and working in a slot 16 in a frame 6 slidable on the carrier 5 and forming the camera front, the corresponding end of the other extensor 10 being connected to the camera front 6 by a lever link 9 the rotation of which is arrested to locate the camera front in the extended position. In one form, the longer arm of link 9 is pivoted to the frame 2 of the ground glass screen. The rear end of the extensor 11 is pivoted to the camera casing 1 and that of the extensor 10 has a pin 12 moving in a slot 13 and engaging an upper angular locking portion thereof when the camera is extended. Extensor 10, which is pivoted at 14<a> to the extensor 11, has a spring 17 co-operating with a bent-up lug 18 on the extensor 11 to retain it in the locked position when extended. The bellows 8 makes light-tight connection between casing 1, frame 2, and camera front 6. The reflex mirror 28, Fig. 4. is pivoted to the casing 1 and is adapted to be raised from the focusing position at the moment of exposure by depression of a lever 35 bearing on a pin 33 which works in a slot 34 in the casing 1 and is carried by a link 32 pivoted to one arm 31 of a bell-crank lever, pivoted at 30 to the casing 1, the other arm 29 of which bears on the under side of the mirror 28 and raises it. The mirror 28 is retained in the raised position by a spring-controlled trip lever 37 pivoted at 38 to the casing 1 and having a catch 40 engaging the pin 33. The lever 37 is tripped on completion of the exposure by a projection 27 on a trin wheel 25 of the focal plane shutter to release the pin 33 and allow the mirror 28 to return to focusing position either by its own weight or by spring action. To ensure that the mirror 28 is released when the camera is being closed up, one arm of a lever 46 pivoted at 47 to the casing 1 is pivoted to a plate 45 operated by the extensor 10, the other arm of the lever 46 then bearing on and releasing the trip-lever 37. To ensure that the mirror 28 is inclined at 45‹ to the optical axis when focusing in a modification, Fig. 5, it is pivoted in a supporting frame 48 having at its rear end pins 49 moving in slots 50 on the casing 1 and pivoted at the front to the camera front 6. An extension 20, Fig. 3, of the frame 2 acts as a lens shade and prevents entrv of dirt &c. when the camera is closed up.
Patent GB-1458230-A (GB)
Title: Preparation of benzoqu9nolizine derivatives
IPC: C07D455/06
Filed: 1974-05-07
Abstract: 1458230 Process for preparing benzoquinolizines and novel intermediates therefrom CHINOIN GYOGYSZER-ES VEGYESZETI TERMEKEK GYARA RT 7 May 1974 [8 May 1973 14 May 1973 (2)] 20092/74 Heading C2C The invention comprises novel compounds of the Formula Ia and their salts, enantiomers and racemates wherein R is C 1-4  alkyl and a process for preparing benzoquinolizines or their salts of the Formula I or enantiomers or racemates thereof wherein R is C 1-4  alkyl, X and Y are each hydrogen when Z is nitrile, aldehyde or C 1-4  alkoxycarbonyl or X and Y together form a bond when Z is nitrile which comprises reacting a ketone of the Formula II with a phosphono acetic acid nitrile wherein R<SP>1</SP> is C 1-4 -alkyl, aryl or aralkyl, to yield a compound of the Formula Ia, optionally followed by reduction to yield a compound of the Formula I wherein X and Y are hydrogen and Z is nitrile and optionally subjecting this product to either (a) reduction to yield a compound of the Formula I wherein X and Y are hydrogen and Z is an aldehyde group or (b) esteriflcation with a C 1-4  alcohol in the presence of an acidic catalyst to yield a compound of the Formula I wherein X and Y are hydrogen and Z is C 1-4  alkoxycarbonyl. When a complex metal hydride is used to reduce the compound Ia the product of step (a) may be obtained directly.