baber/WOPTO huggingface dataset:
Patent GB-1155022-A (GB)
Title: Hydroxymethane Carboxylic Acid Esters and process for their manufacture
Inventor: WOODWARD ROBERT BURNS
IPC: C07D513/04
Filed: 1966-08-30
Abstract: 1,155,022. Aldehyde derivatives of carboxylic acids. R. B. WOODWARD. 30 Aug., 1966 [10 Sept., 1965; 9 Dec., 1965 (2); 13 Jan., 1966 (2)], No. 38652/66. Heading C2C. Compounds of the formula wherein R 1  is hydrogen or a group -COOR b  and R a  and Rb are the residua of alcohols, may be obtained by reacting an oxomethane carboxylic acid ester of the formula with malonic dialdehyde or a salt thereof, and eliminating water from the resulting intermediate α-diformylmethyl-α-hydroxy-methane carboxylic acid ester product of the formula The reaction of the malonic dialdehyde or salt thereof with the oxomethane carboxylic acid ester may be carried out in a solvent in the presence of a condensing agent and/or a catalyst in an inert atmosphere and/or under superatmospheric pressure. The subsequent dehydration of the intermediate product is suitably effected thermally at a temperature above 100‹ C. and preferably in the presence of a suitable solvent, e.g. a high boiling hydrocarbon or ether, and the generated water is preferably removed from the reaction mixture, e.g. by azeotropic distillation. The radicals R a  and Rb in the above formulµ are suitably derived from aliphatic, cycloaliphatic or araliphatic alcohols and the malonic dialdehyde starting material, which may be prepared in situ, may be obtained by hydrolysing a 1,1,3,3-tetra-alkoxypropane with acid, e.g. aqueous mineral acid, and optionally converted into its alkali metal salt by subsequent treatment with alkali metal hydroxide.
Patent GB-1224619-A (GB)
Title: DERIVATIVES OF alpha-AMINOPENICILLINS
Inventor: LONG ANTHONY ALFRED WALTER
IPC: C07D499/80
Filed: 1968-08-14
Abstract: 1,224,619. Penicillins. BEECHAM GROUP Ltd. 12 Aug., 1969 [14 Aug., 1968], No. 38790/68. Heading C2A. Novel penicillins of the Formula I and non-toxic salts thereof, wherein R is C 1 -C 5  alkyl are prepared by reacting a 6-(α-aminohydroxyphenylacetamido) - penicillanic acid or salt thereof with a ketone of formula R-CO-CH 3  where R is as defined above. The reaction is preferably carried out in the presence of a base (e.g. triethylamine) in excess ketone.
Patent GB-864646-A (GB)
Title: Improvements relating to the construction of tunnels or tunnel-parts
IPC: E02D29/073
Filed: 1957-12-13
Abstract: 864,646. Tunnels. DE STAAT DE NEDERLANDEN. Dec. 13, 1957 [Dec. 15, 1956], No. 38827/57. Class 85. A tunnel especially for subaqueous traffic and made from prefabricated sections comprises an inner wall 1 of prestressed concrete provided with a yielding water-tight layer 2 and an outer wall 3 of reinforced concrete. In the traffic space air ducts 5, 6 are provided and a duct 7 for cables and lines. The sections may be joined together by end flanges 9, Fig. 3, coated with steel 10 and extending into the outer wall. A porous water-carrying layer may be provided between the outer wall 3 and the water-tight layer 2. The layer 2 may be asphalt reinforced by fabric and the porous layer may be made of heavy felt paper.
Patent GB-1006980-A (GB)
Title: A process for the production of highly pure semi-conducting selenium materials
IPC: C01B19/02
Filed: 1963-10-02
Abstract: <PICT:1006980/C1/1> Pure selenium or pure metal selenides are prepared in a continuous process wherein liquefied selenium is brought into contact with hydrogen at a temperature from 500 DEG  to 600 DEG  C., and the selenium thus initially purified is converted by reaction with hydrogen at a temperature from 650 DEG  to 700 DEG  C. to hydrogen selenide which is continuously separated from unconverted hydrogen and gaseous impurities by liquefaction and is thermally decomposed to selenium or reacted with pure metals on metal compounds to form the corresponding selenides. Metals referred to are Cu, Ag, Au, Zn, Cd, Hg, Be, Ng, Ca, Ba, Sr, Al, Ga, In, Sn, Pb, As, Sb and Fe.  In the apparatus of the drawing crude selenium is liquefied in 1, passes through tube 2 packed with inert filler bodies counter-current to a flow of hydrogen at 550 DEG  C., and enters evaporation vessel 3 into which pure dry hydrogen is introduced. Hydrogenation takes place at 650-685 DEG  C. in chamber 4.  The hydrogen selenide is liquefied by cooling to -60 DEG  C. in column 7 and subsequently evaporated from sump 9.  It is decomposed at 1000 DEG  C. in tower 12; solid selenium collects in 13. Alternatively 12 is replaced by a reaction vessel and pure metal vapour, e.g. Cd is passed in, on the hydrogen selenide is passed into a solution of a metal salt, e.g. CdSO4 to give metal selenide. Specification 698,228 is referred to.
Patent GB-1165353-A (GB)
Title: Improvements in or relating to Nucleotide Derivatives of 7-Deazaadenine
IPC: C07H19/14
Filed: 1966-08-31
Abstract: 1,165,353. 7 - Deazapurine - 5<SP>1</SP> - phosphate derivatives. UPJOHN CO. 31 Aug., 1966 [20 Sept., 1965], No. 38869/66. Headings C2A and C2C. The invention comprises 7-deazapurine-5<SP>1</SP>-phosphate derivatives of the formulae in which R 1  and R 2  are C 1 -C 4  alkyl radicals or together form an alkylene chain of 4 to 6 carbon atoms, Z is hydrogen, OH, amino, acyl-amino in which the acyl group is of a hydrocarbon carboxylic acid of 2 to 12 carbon atoms or anisoyl, thio or C 1 -C 4  alkylthio and R 3  is C 1 -C 12  alkyl, C 5 -C 10  cycloalkyl or C 6 -C 14  aryl (including 2,4-dinitrophenyl) and nitronaphthyl). They may be obtained by treating a compound of Formula (I) under anhydrous conditions with a C 1 -C 12  alkanol, a C 5 -C 10  cycloalkanol, a C 6 -C 14  phenol or naphthol in the presence of a strong organic base, e.g. a trialkylamine in which the alkyl groups have from 2 to 6 carbon atoms and a condensing agent, e.g. dicyclohexyl carbodiimide, to give the corresponding ester of Formula (III) which is then treated with an mineral or aqueous organic acid to give a compound of Formula (II). If the group Z is an acylamino group a base hydrolysis may precede or follow the acid hydrolysis so as to obtain a compound of Formula II in which Z is a free amino group (NH 2 ). The base used for the hydrolysis step is preferably concentrated ammonium hydroxide in a lower alkanol. In the examples given one of the initial materials is 9-#-D-ribofuranosyl-7-deazadenine (sparsomycin A) which is obtained by a fermentation process using a soil slant of Streptomyces sparsogenes var sparsogenes and which is converted to various derivatives of Formula I for use as starting materials of the defined process. The esters of Formula II have cytotoxic activity against Herpes, Coe and vaccinia viruses and can be used to prepare cultures of microorganisms, e.g. streptomyces cultures, free of viral phages. The methyl ester of 9-#-D-ribofuranosyl-7-deazadenine-5<SP>1</SP>-phosphate is also active against certain fungi, e.g. penicillin oxalieum. Various nucleoside derivatives used to prepare the starting materials of Formula I are also prepared.
Patent GB-342467-A (GB)
Title: Improvements in and relating to serving hatches for domestic use
IPC: E04F19/08
Filed: 1929-12-19
Abstract: 342,467. Service hatches. SIMMONS, A., High Street, Amesbury, Wiltshire. Dec. 19, 1929, No. 38877. [Class 20 (iii).] A service hatch is mounted, in a freely rotatable manner about a vertical axis, within a frame which is set in a wall opening between two rooms. Fig. 1 is a plan of the hatch, showing the wall in section, and Fig. 2 is an elevation of the hatch and its frame. The hatch B has top and bottom pivots engaging in bearings D<1>, D<4>, within a frame A. The frame is set within a wall C so that it is flush with the face of the wall of one room. The bearings D<1>, D<4> are so disposed that the back of the hatch, in one position, is also flush with the face of the wall. This position of the hatch is normally maintained by a spring-ball catch F. The sides of the hatch and frame are curved in the form of circular arcs with the pivots as centre, so that the clearance therebetween is constant. Strips of felt E or the like are carried within slots in the frame to exclude draughts, odours, &c. The structure may be of metal.
Patent GB-1185326-A (GB)
Title: Improvements relating to the Ultrasonic Treatment or Testing of Solid Materials.
Inventor: KAINES CHRISTOPHER JOHN
IPC: G01N29/24
Filed: 1966-09-01
Abstract: 1,185,326. Ultrasonic couplings. MORGANITE RESEARCH & DEVELOPMENT Ltd. 1 Nov., 1967 [1 Sept., 1966], No. 39016/66. Heading H4J. An ultrasonic coupling, for use in treating or testing a specimen of material, comprises two superimposed solid bodies of dissimilar materials which have therebetween a curved interface at which ultrasonic waves passing therethrough are refracted so as to be brought to a focus. The coupling consists of an outer cup 12 made of steel or brass which freely rotates about a segment-shaped insert piece 105 of brass or plastics that has an outer surface 105a which is continuous with that of a hollow steel cylinder 10. A transducer 11 is maintained, under spring pressure, in contact with an inner flat face of the insert piece. A parallel beam of ultrasonic waves produced by the transducer is directed downwardly through the insert piece and rotatable cup (in which it is focused prior to its passage) into the material under test. A " concentrated " parallel beam may be obtained by providing the rotatable cup with a PVC tyre. A film of oil can be supplied to the interengaging surfaces of the cup and the insert piece and cylinder via an oiling point 122.
Patent GB-1327181-A (GB)
Title: Method of making an embossing roller
IPC: B29C59/00
Filed: 1971-08-20
Abstract: 1327181 Embossing roller processes ROWLAND DEVELOPMENT CORP 20 Aug 1971 [20 Aug 1970] 39209/71 Headings B6C and B6J] An embossing roller, used to produce patterns of lens-like shapes on a plastics material web, comprises a core 42, a layer 44 on the core, with valleys and ridges in it, of a plastics resin material, and a coating 46 of a more resilient plastics material, with an outer surface which is cylindrical apart from embossing recesses 52. In use the roller co-operates either with a similar roller or with a steel one, and a variation produced in the spacing of the embossed shapes on the web is made by irregular resilient movement of the coating 46 The co-operating roller may be driven at a circumferential speed differing from that of the other roller, and the speed differential may be constant or varied during the operation.
Patent GB-1284562-A (GB)
Title: 31ycolour television synchronization
IPC: H04N5/06
Filed: 1969-08-06
Abstract: 1284562 Automatic frequency control TELEMATION Inc 6 Aug 1969 [21 March 1969] 39396/69 Heading H3A In a colour television origination system, a slave clock source generating the colour subcarrier is locked to a master clock source by an AFC loop. The frequencies of the two signals are reduced in frequency before being applied to the comparator by means of frequency changers and dividers.
Patent GB-1099269-A (GB)
Title: New anti-arteriosclerotic compositions
IPC: A61K35/12
Filed: 1965-09-16
Abstract: Orally administrable anti-arteriosclerotic medicines, e.g. in tablet, pill or capsule form comprise a compound of general formula: <FORM:1099269/A5-A6/1> wherein X is a C1-4 alkyl radical or a monovalent cation and the heparinoid described in Specification 889,010, which is a sulphomucopolysaccharide containing peptides and nucleinic acids.
Patent GB-335848-A (GB)
Title: Improvements in or relating to the cooling systems of the cylinders of internal combustion engines
IPC: F02N19/10
Filed: 1929-12-28
Abstract: 335,848. Sulzer FrÞres Soc. Anon. March 30, 1929, [Convention date]. Cylinders, cooling.-In a cooling system in which liquid is circulated by an electricallydriven pump 6 and some of the cylinder jackets are provided with electric heaters 10, a. switch 21 is arranged to cut-out the heaters when the pump is being driven, and vice versa; in an intermediate position the switch 21 cuts-out both. The current is normally supplied by a battery 11, but a switch 22 and leads 20 enable the heaters to be connected to an external source when the engine is inactive. The cooling liquid is circulated through a radiator 9 to a tank 7, valves 12 enabling the jackets, containing the heaters 10, to be isolated.
Patent GB-1464454-A (GB)
Title: Type of single phase squirrel cage induction motor assembly
IPC: H02K17/08
Filed: 1974-09-11
Abstract: 1464454 Controlling electric induction motors UNISEARCH Ltd 11 Sept 1974 [20 Sept 1973] 39666/74 Headings H2A and H2J In an induction motor with a squirrel cage rotor R and with a stator having first and second spaced windings S 1 , S 2 , the winding S 1  is energized from a fixed frequency supply, and the winding S 2  is energized by electric circuit means which provides a voltage having a fundamental frequency component which is held in fixed time phase with respect to the supply voltage independent of effective winding impedance and rotor speed. In the arrangement shown the winding S 2  is energized via a rectifying bridge B and a pair of thyristors T 1 , T 2  respectively connected in series with opposite ends of S 2 , and the thyristors are switched by means of gating signals from a gate signal source G. A capacitor C across the winding S 2  ensures that one thyristor switches off as the other switches on. With the half pole pitch separation between S 1  and S 2  as shown, the phase difference between the voltages across S 1 , S 2  is adjusted to 90 degrees.
Patent GB-1247779-A (GB)
Title: Production of 3',5'-cyclic adenylic acid with microorganisms
Inventor: ISHIYAMA JIRO
IPC: C12P19/32
Filed: 1969-08-08
Abstract: 1,247,779. 3<SP>1</SP>,5<SP>1</SP>-Cyclic adenylic acid. KIKKOMAN SHOYU CO. Ltd. 8 Aug., 1969, No. 39705/69. Heading C2C. 3<SP>1</SP>,5<SP>1</SP>-Cyclic adenylic acid is prepared by culturing aerobically a micro-organism of the genus Corynebacterium Arthrobacter or Microbacterium in a nutrient medium containing at least one of adenosine, adenine, inosine, hypoxanthine, 5-amino-4 imidazole carboxamide, 5- amino-4-imidazole carboxamide-riboside, succinyl adenosine or succinyl adenine, the temperature and pH being maintained at 20-40‹ C. and 5-9, respectively.
Patent GB-1070150-A (GB)
Title: Device for conversion of movement of an indicating element into electrical digital signals
Inventor: WAGNER HEINZ
IPC: G01G23/375
Filed: 1964-09-30
Abstract: 1,070,150. Selective signalling. SPEZIALWAAGENFABKIK RAPIDO VEB. Sept. 30, 1964, No. 39793/64. Heading G4H. The displacement of a scale having uniformly spaced transparent and opaque sections is digitized by counting pulses, in the appropriate direction, produced by quadrature spaced sensing photo-electric cells, four pulses being produced by the passage of each pair of adjacent transparent and opaque sections of the scale past the sensing cells.
Patent GB-347298-A (GB)
Title: Improvements in cylinder heads for internal combustion engines
IPC: F02F1/24
Filed: 1929-12-30
Abstract: 347,298. Cylinders. SPRING, H., Tilff, near Liege, Belgium. Dec. 30, 1929, No. 39801. Convention date, Dec. 29, 1928. [Class 7 (ii).] The combustion chamber comprises a number of pockets A, Fig. 1 (Cancelled), connected by passages D in which the points P of the sparking-plug are located; various designs are shown, in one of which the pockets communicate with the cylinder by slots in their, otherwise closed, lower wall. In an overhead-valve combustion chamber, Figs. 4 and 5, the plug points P are located at the junction of a passage G and an L-shaped chamber A18, A19, which communicates with the cylinder by a curved port E1 ; projections 6 screen the exhaust valve. The Specification as open to inspection under Sect. 91 (3) (a) also has a side-valve combustion chamber, Fig. 5 (Cancelled), in which the admission port is at a higher level than the exhaust port and the sparking-plug points P are located in a passage formed by a partition C, and a passage F of V-section is formed adjacent the exhaust valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-1379297-A (GB)
Title: Air vent valve
IPC: F16K/
Filed: 1972-08-25
Abstract: 1379297 Valves K FUJIWARA 25 Aug 1972 [27 Aug 1971] 39840/72 Heading F2V A valve for venting air from pipework or heat exchangers, comprises a tilt-type closure member 10 operated against action of spring 9 to open the vent when a float 5 drops due to air accumulation within chamber 3. The valve can be operated manually by depressing a plunger 13. A syphon rod 19 is provided in inlet 17.
Patent GB-1526737-A (GB)
Title: Method of adjusting the aperture value of a camera diaphragm and a camera for putting the method into effect
IPC: G03B7/085
Filed: 1975-09-30
Abstract: 1526737 Camera diaphragm control ASAMI KOGAKU KOGYO KK 30 Sept 1975 [9 Oct 1974]  39881/75 Heading G2A A camera diaphragm is stopped down at a rate which is linearly proportional to the APEX value of aperture A v  as determined by pre-set values of shutter speed and film sensitivity and the measured value of object brightness. Thus small aperture values are quickly reached. As shown, a photo-conductor 1 and diodes 2, 3 produce voltage Va which is memorized by a capacitor 5; and a variable resistor 7 set according to film speed and shutter time and diodes 8, 9 produce a voltage Vb. Upon camera release the diaphragm starts to stop down and simultaneously a switch 12 is opened whereby a capacitor 11 is charged by a constant current source 13. When the voltage V o  on the capacitor 11 is such that Vo + Vb = Va, then the output of an operational amplifier 14 inverts and an electromagnet 15 is de-energized to terminate closing movement of the diaphragm. The diaphragm mechanism is shown in Fig. 2 (not shown). On depressing release 32, a stop lever 30 releases a drive lever 29 which is rotated ACW by a spring 34: (a) to open memory switch 4 (b) to strike a lever 28 and rotate it ACW Lever 28 opens switch to start timing, and also frees an arm 23c whereby a spring 26 can rotate a diaphragm ring 23 CW to stop down the aperture. When electromagnet 15 is de-energized by the circuit of Fig. 1 (not shown), it releases a ratchet 27 which locks a ratchet wheel 25a forming part of the diaphragm governor mechanism 25 and thereby terminates diaphragm closure.
Patent GB-1217670-A (GB)
Title: Vortex amplifier
IPC: F15C1/16
Filed: 1969-08-11
Abstract: 1,217,670. Fluid regulation. BENDIX CORP. Aug.11, 1969 [Sept.13, 1968], No.40003/69. Heading G3H. A vortex amplifier, Fig. 1, (not shown), which minimises the unstable condition created by the boundary layer just attaching to, and then breaking loose from the vortex chamber upon the input control pressure reaching or attaining the value required to achieve cut-off of supply flow, comprises a plurality of superimposed laminae together defining a cylindrical vortex chamber 36, an axially extending inlet, an axially disposed outlet 38, and two control fluid ducts 34 each extending tangentially of the chamber, the lamina defining the chamber base and containing the outlet port 38 being formed with a longitudinal slot 40 the major axis of which is at least equal to the chamber diameter. In use, the presence of slot 40 prevents the boundary layer from attaching itself to the circumferential wall.
Patent GB-1067087-A (GB)
Title: Improvements in or relating to screws
Inventor: PHIPARD HARVEY FISK
IPC: F16B23/00
Filed: 1964-10-01
Abstract: 1,067,087. Forging screws. RESEARCH ENGINEERING & MANUFACTURING Inc. Oct. 1, 1964, No. 40075/64. Heading B3H. [Also in Division F2] The head of a screw provided with an axial recess including wings for the reception of a driver is formed by a punch 27 having an axial portion 28 fluted to provide a tapered end 29 and a series of blades 30. A screw blank having an enlarged head 32 is seated in a die 34. The punch 28 on starting to penetrate the head 32 causes the material of the head to start to flow outwardly. On further penetration of the portion 28, the punch projections 31 strike the partly formed head and initiate a counter-flow of head material.
Patent GB-907674-A (GB)
Title: Article of manufacture comprising a fibrous material impregnated with a deposit of a mixture of synthetic resins
IPC: D06M15/39
Filed: 1960-11-24
Abstract: Paper, or wood &c. is impregnated or coated with (1) a water-insoluble linear copolymer having an apparent second-order transition temperature (Ti) between 25 DEG  and 90 DEG C. derived from monoethylenically unsaturated monomers, at least one monomer comprising 3 to 7% of the copolymer and being of the formula: <FORM:0907674/IV(a)/1> where R is H or a methyl group, and R1 and R2 are H or a -CH2OH or a -CH2OCH3 group and (2) 10 to 30% on the weight of the copolymer of a water-soluble melamine-formaldehyde resin condensate.  The monomers for the copolymer may include alkyl methacrylates, the alkyl group being of 1 to 4 carbon atoms, or t-amyl-, cyclohexyl-, or benzyl-acrylate or -methacrylate, acrylonitrile, styrene, vinyl chloride, chloro-, or p-methyl-styrene, and may be copolymerized with softer monomers including alkyl acrylates and methacrylates, the alkyl group being of 5 to 18 carbon atoms, and acrylates of primary and secondary alcohols of 1 to 4 carbon atoms. Specification 855,994 is referred to.
Patent GB-1082857-A (GB)
Title: Current supply apparatus for electro-photographic copying equipment
Inventor: HESSE CHRISTIAN
IPC: G03G21/14
Filed: 1964-10-05
Abstract: 1,082,857. Electro-photographic apparatus. PENTACON DRESDON KAMERA - UND KINOWERKE, VEB. Oct. 5, 1964, No.40436/64. Heading G2H. An electro-photographic apparatus has a charging electrode 23 which can be pivoted by a handle 6 into and out of a position adjacent an electro-photographic plate 30. Pivoting of electrode 23 actuates contacts 19, 20 and contacts 18, 21, 22. Contacts 21, 22 control a high voltage supply apparatus 25 connected to electrode 23. An asynchronous motor M having field windings 10, 11 drives cams 12 which actuate contacts 13, 14, 15. The duration of the charging process is determined by the speed of motor 9 which is controlled by a potentiometer 16. A potentiometer 17 determines the exposure time of a lamp 27 lit through the cam controlled contacts 15. The electrode 23 may also serve as a transfer electrode.
Patent GB-1190978-A (GB)
Title: Mounting Frame for Transparencies
Inventor: LARSSON SVEN ANDERS
IPC: G03B21/64
Filed: 1967-09-05
Abstract: 1,190,978. Transparency mounts. S.A. LARSSON. Sept. 5, 1967 [Sept. 9, 1966], No. 40531/67. Heading G2C. A mounting frame for transparencies consists of two identically shaped frame halves 1, one side edge of each half being provided with a flange 9 which, when the two halves are joined together, extends over the corresponding side edge of the other frame half. The two halves are joined together by a press fit with projections 2 on each half mating with corresponding recesses 4 on the other half.