baber/WOPTO huggingface dataset:
Patent GB-1177859-A (GB)
Title: Indole Derivatives and process for their preparation
IPC: C07D209/26
Filed: 1967-07-13
Abstract: 1,177,859. 1-Acyl-3-indolyl aliphatic acid derivatives. SUMITOMO CHEMICAL CO. Ltd. 13 July, 1967 [13 July, 1966], No. 32306/67. Heading C2C. Novel 1-acyl-3-indolyl aliphatic acid derivatives of the general formula wherein R<SP>1</SP> is an unsubstituted or a halogeno-, C 1-2  alkyl- or phenyl-substituted or benzene ring-condensed, saturated or unsaturated mono- or poly-alicyclic group, or a C 1-4  alkyl group substituted by said alicyclic group; R<SP>2</SP> and R<SP>3</SP> are independently a hydrogen atom or a C 1-2  alkyl group; R<SP>4</SP> is a hydrogen atom or a C 1-5  alkoxycarbonyl group; R<SP>5</SP> is a hydroxy, C 1-3  alkoxy, benzyloxy, tetrahydropyranyloxy or amino group; R<SP>6</SP> is a C 1-3  alkyl, C 1-3  alkoxy or C 1-3  alkylthio group or a halogen or hydrogen atom; p is 0 or 1; and n is 0, 1, 2 or 3, are prepared by the following methods: (a) reaction of a phenylhydrazine derivative of the general formula or a salt thereof with a ketone of the general formula (b) reaction of an N<SP>1</SP>-acylated phenylhydrazone derivative of the general formula wherein B is an aldehyde or ketone residue, with a ketone of the third general formula above; (c) when p is O and R<SP>5</SP> is a hydroxy group, hydrolysis, catalytic reduction or pyrolysis of a 1-acyl-3-indolyl aliphatic ester or amide of the general formula wherein R<SP>7</SP> is an alkoxy, benzyloxy, tetrahydropyranyloxy or amino group; and (d) when p is O and R<SP>5</SP> is an alkoxy, benzyloxy or tetrahydropyranyloxy group, reaction of a 3-indolyl aliphatic ester of the general formula wherein R<SP>7</SP> is an alkoxy, benzyloxy or tetrahydropyranyloxy group, with an acyl compound of the general formula R<SP>1</SP>COY, wherein Y is a halogen or an ester residue. Pharmaceutical compositions having antiinflammatory, anti-pyretic, analgesic and anticholesterolemic activities comprise as active ingredient a 1-acyl-3-indolyl aliphatic acid derivative of the first general formula above and an inert, non-toxic pharmaceutical carrier or diluent. Phenylhydrazine derivatives of the second general formula above are prepared by decomposition of an N<SP>1</SP>-acylated phenyl hydrazone derivative of the fourth general formula above with an acid. N<SP>1</SP>-Acylated phenylhydrazone derivatives of the fourth general formula above are prepared by reaction of a phenylhydrazone derivative of the general formula with an acyl compound of the general formula R<SP>1</SP>COY.
Patent GB-1185152-A (GB)
Title: Improvements in or relating to Pneumatically Operated Punched Tape Reading Device
Inventor: CANT JOHN SYDNEY
IPC: G06K7/02
Filed: 1966-07-19
Abstract: 1,185,152. Tape readers. MARCONI CO. Ltd. 17 May, 1967 [19 July, 1966], No. 32309/66. Heading G4M. A punched tape T is drawn across an arcuate surface 5 in a block 1 having pressurized channels 3, by a sprocket roller 6 having holes 11 which provide exhaust to atmosphere, and signal elements (not shown) are connected to side branches 12 to detect drops in pressure which occur when holes are present in the tape. Roller 6 is spring-biased to press the tape against surface 5.
Patent GB-1313808-A (GB)
Title: Thionothiolphosphoric acid ester amides a process for their prepa ration and their use as nematocides insecticides and acaricides
IPC: C07F9/24
Filed: 1971-07-09
Abstract: 1313808 Dithiophosphoric acid ester amides BAYER AG 9 July 1971 [11 July 1970 29 Jan 1971] 32352/71 Heading C2P Novel compounds of the general formula wherein R and R<SP>2</SP>, which may be the same or different, are straight or branched chain C 1 -C 6  alkyl radicals or straight or branched chain C 2 -C 6  alkenyl radicals and R<SP>1</SP> is methyl, ethyl, isopropyl or a C 2 -C 4  alkenyl radical, are obtained by reacting a compound: wherein M is an alkali- or alkaline earth metal equivalent or an optionally alkyl-substituted ammonium equivalent with a haloacetic acid amide of the formula wherein Hal is halogen, e.g. Cl or Br. The reaction is generally effected at 0 to 100 C. and is preferably carried out in an inert solvent or diluent (including water). The products have nematocidal, insecticidal and acaracidal properties and may be used as active ingredients in conventional pesticidal formulations.
Patent GB-772250-A (GB)
Title: Spectral analysis by electrical light-sensitive means
Inventor: DAVIS HERBERT MACDONALD
IPC: G01J3/36
Filed: 1953-11-21
Abstract: 772,250. Photo-electric spectrum analyses. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 15, 1954 [Nov. 21, 1953], No. 32355/53. Class 40 (3). [Also in Group XL (c)] In spectral analysis in which a light-sensitive cell receives light which is characteristic of the element of interest unwanted signals due to the spectral background are eliminated by means of a second cell receiving light from an adjacent nearby area of the spectral background, the difference between the two cell outputs being measured. As shown, a diaphragm 2 arranged in the focal plane of a spectrograph 4 carries two slits so arranged that photo-cell 6 behind one slit receives light from the spectral line under consideration while cell 8 receives light from nearby spectral background. The outputs of the two cells are integrated at 10 and 12, the output of integrator 12 being adjustable by potentiometer 14. The difference between the two signals is amplified and shown on an inductor 18. A number of cells may be connected in turn to the integrator by a switch while the output of the integrator 12 is connected to a number of output potentiometers 14. In the arrangement of Fig. 3 (not shown), appropriate wavebands are selected by means of filters while the integrators are of the Miller type. Circuits. In the arrangement of Fig. 2 the output of photo-multiplier 8 is integrated across condenser C1 and fed to the grid of valve V1 forming with V2 a long-tailed pair. The output of these valves is fed to an amplifier V3 and balancing valve V4, while the output of V3 is fed to a cathode follower V5 which provides 100 per cent negative feedback to the grid of V2 producing a low output impedance. In the circuit of Fig. 4, for use with the arrangement of Fig. 3, referred to above, the output of a pair of Miller integrators each fed from one of photomultipliers 6, 8 is compared. Each integrator consists of the Miller integrator valve V10, inphase amplifier V11, cathode follower V12, and Miller condenser C10 connected between the cathode of the cathode follower and the grid of the Miller valve. Specification 661,497 is referred to.
Patent GB-603271-A (GB)
Title: Improvements in or relating to typographical elements or matrices for photographic type-composing machines
IPC: B41B15/12
Filed: 1945-11-30
Abstract: 603,271. Photographic type - composing. INTERTYPE, Ltd. Nov. 30, 1945, Nos. 32419 and 32420. Convention dates, Dec. 2, 1944, and July 20, 1945. [Class 98 (i)] In a character-bearing element in which the character plaque, which may comprise a photographic film negative, is located in a hole in the element body, the plaque is protected by transparent covers on each side fitting flush with the outer surfaces of the element. As shown, the element, which has upper and lower pairs of lugs 2 and 3, combination teeth 4, a character-aligning notch 10, and spacing ribs 7 and 7a of variable and constant thickness respectively, is provided with a hole extending through the web portion and constituted by a window 8 and a concentric portion 9 of larger diameter. The portion 9 extends into the element the same distance for every element of a fount. The character plaque 5 may be punched from a film strip bearing a succession of photographically recorded characters, and the notch 10 is used to position the element both during the drilling of the holes 8 and 9 in the element and during the punching of the plaque from the film and insertion of the plaque in the element. Shields 11 and 12 of transparent acrylic resin or cellulose acetate are punched out from sheets using the element itself as a die, and after the plaque and shields have been inserted in the element the latter may be retained by punching round the edges of the holes. In a modification, the two holes 8 and 9 may be of equal diameter, with a shoulder therebetween. The plaque and one or both shields may be punched simultaneously and pressed into the holes in one operation. The shields may be heat-sealed into the holes by application of a heated tool, with additional punching round the hole if desired. A combined front shield and plaque may be formed by punching a developed photographic film cemented to a cellulose acetate sheet. Film cement, glue or other adhesive may be applied to the edges of the shields or to the walls of the holes before assembly. The edges of the holes may be pressed over the shields by use of a punch of slightly larger diameter.
Patent GB-534104-A (GB)
Title: Improvements in or relating to ultra-high-frequency signal-translating stages
IPC: H03F1/08
Filed: 1939-12-18
Abstract: 534,104. Valve circuits. HAZELTINE CORPORATION. Dec. 18, 1939, No. 32442. Convention date, Jan. 12. [Class 40 (v)] The conductance of the input circuit of an ultra-high-frequency amplifier 10 is neutralized by connecting an inductance 20 between the external cathode terminal and an earth terminal which is connected by a condenser 21 to the external grid terminal. This counteracts the effect of the inherent inductance 16 in the cathode lead and the effect of the transit time of the electrons, and also the effect of the inherent capacity 15 between cathode and grid. The screen grid is for high frequencies returned to earth through a condenser 23. In a modification, a resistance is also included in the cathode lead, while in a second modification separate bias potentials are applied to the control and suppressor grids. Specification 514,073 is referred to.
Patent GB-190467-A (GB)
Title: Internal combustion engine with several cylinders arranged side by side and pistons adapted to work upon the same crank
IPC: F02B75/18
Filed: 1922-11-28
Abstract: 190,467. Bischoff, J. J. Dec. 13, 1921, [Convention date]. Four-stroke-cycle engines.-Three cylinders are arranged in line, the middle cylinder 1 having a cross-sectional area twice that of either of the outer cylinders 2. The combustion chambers of the outer cylinders are connected. All three pistons work on one crank through the cross-shaped connecting-rod 7. The middle and two outer cylinders fire alternately. Groups of such cylinders may be arranged radially.
Patent GB-1516413-A (GB)
Title: Multi-layered optical data records and playback apparatus
IPC: G11B7/24
Filed: 1975-08-04
Abstract: 1516413 Multi-layered optical recording and playback E S JACOBS 4 Aug 1975 [21 Oct 1974] 32589/75 Heading G5R Information is recorded as discrete optical data spots of variable size in a plurality of layers 50 of a record 10. The recording may be reflective as shown, transmissive or photoluminescent, and playback is effected by a single beam 18. One layer 50 is selected for playback by means of a focussing lens 20 and a pin-hole mask 22 as shown or by colour filters (60, 62), Fig. 3 (not shown). The beam 18 scans successive arcuate tracks (35), Fig. 2 (not shown), via a five-sided distributor mirror 26 and five corresponding objective mirrors 34 and lenses 16, all rotating together on a shaft 30.
Patent GB-1168053-A (GB)
Title: Stabilization of Alkylidenebicycloheptenes
Inventor: BRITTON SAMUEL BERNARD
IPC: C07C7/20
Filed: 1968-07-09
Abstract: 1,168,053. Stabilizing alkylidene bicycloheptenes. UNION CARBIDE CORP. 9 July, 1968, No. 32591/68. Heading C5E. Alkylidene bicycloheptenes are stabilized against oxidation by the incorporation therein of a minor amount of a C 1 -C 8  alkylcatechol, hydroquinone, a C 1 -C 8  alkyl substituted hydroquinone, or a C 1 -C 8  monoalkyl ether of hydroquinone. The stabilizers may be used in a concentration of 50-2500 p.p.m. by wt. Examples describe the stabilization of 5- ethylidenebicycio - [2,2,1] - hept - 2 - ene with 4 - tert. butylcatechol, hydroquinone and p-methoxyphenol.
Patent GB-662758-A (GB)
Title: Process for the synthesis of oestrone and oestradiols and marrianolic and hormomarrianolic acid and their esters
IPC: C07J1/00
Filed: 1948-12-16
Abstract: Oestrone and its derivatives are synthesized from sterically homogeneous 1-keto-2-methyl - 7 - hydroxy - 1 : 2 : 3 : 4 : 9 : 10 : 11 : 12 - octahydrophenanthrene - 2 - carboxylic acid esters (or 7-derivatives thereof) as follows: (1) reaction with a halo-acetic ester and a metal, dehydration of the resulting tertiary carbinol, catalytic hydrogenation of the double bond and hydrolysis of the primary carboxylic ester group to give a marrianolic acid semi-ester; further hydrolysis gives the free marrianolic acid; (2) the semi-ester from (1) is converted into its acid halide, treated with diazomethane to give the diazomethyl ketone which by the Arndt-Eistert reaction in the presence of alcohol yields a homomarrianolic acid diester; (3) the diester from (2) is either ring-closed with alkali metal or alcoholate to a b -keto-ester which is acid-hydrolysed and decarboxylated to oestrone (or 7-derivative thereof) or hydrolysed to the free acid, converted into a salt (e.g. with lead carbonate) and dry-distilled to give oestrone (or 7-derivative thereof); (4) the keto group in oestrone may be reduced to a secondary alcohol group or reacted with an aliphatic metal compound (e.g. an acetylide); (5) at any stage the 7-substituent may be hydrolysed to a free hydroxy group and/or stereoisomers isolated by fractional crystallization.  The 7-substituent may be free, etherified or esterified hydroxy, e.g. methoxy, benzyloxy, acetoxy, propionoxy, benzoyloxy or succinyloxy.  The preferred starting material is the racemate of 1-keto-2-methyl - 7 - methoxy - 1 : 2 : 3 : 4 : 9 : 10 : 11 : 12 - octahydrophenanthrene - 2 - carboxylic acid methyl ester melting at 133-5 DEG  C.  An example describes the treatment of this according to the above scheme giving 7-methylmarrianolic dimethyl ester (racemate M.P. 95-6 DEG  C.), 7-methyl-hormomarrianolic acid (racemate M.P. 225-7 DEG  C.), oestrone methyl ether, dl-oestrone (M.P. 251-4 DEG  C.), natural d-oestrone, dl-oestradiol and dl-ethinyl-oestradiol.  Resolution of the oestrone is effected via the l-menthoxy-acetic ester. Suitable reaction conditions are given for each stage of the process.  Samples have been furnished under Sect. 2 (5) of the stereoisomeric dl-oestrones prepared by the same method.  These have M.P.'s 230-2 DEG  C., 184-6 DEG  C. and 188-190 DEG  C. respectively.
Patent GB-1308885-A (GB)
Title: Method of making filter rods for tobacco products and filters made according to such method
IPC: A24D3/02
Filed: 1971-07-12
Abstract: 1308885 Tobacco-smoke filters CELFIL CO ESTABLISHMENT 12 July 1971 [29 July 1970 27 Aug 1970 28 Aug 1970] 32655/71 Heading A2C [Also in Divisions D1 and D2] A fibrous tobacco-smoke filter material includes carbon which has been separated from natural or synthetic carbon and hydrogen containing fibrous matter by heat treatment following the addition of sulphuric acid. In the manufacture of paper filter wads, the paper may be moistened with a 0.2-5% sulphuric acid solution in water or methyl alcohol before or after grooving and stretching, or may be added to the pulp from which the paper is made. The treated and dried paper is subsequently heated, e.g. for 5 minutes at 150C., to cause the separation of carbon without destroying the fibrous structure. The acid treated paper may be processed into wrapped filter rods and stored for some time before the heat treatment is applied. The carbon separating treatment is also applicable to flat fibre webs or fibrous tows made from materials such as cellulose acetates, regenerated cellulose or polyolefins. The diluent for the sulphuric acid for application to tows is preferably a readily volatile solvent, which will wet the fibres rapidly, such as alcohol or acetone. Alternatively, the acid may be included in the softening agent added to the tow which agent may be triacetin. Multiple filters having carbon followed by non-carbon containing components in alternate zones may be produced by applying the acid solution to transverse strips of the filter material. Indicators may be added to these acid treated strips so that their position may be detected before separation of carbon is effected to enable continuous filter rods made from the acid treated material to be accurately cut into filter elements which are to be subjected to the heat treatment only after cutting. The use of known forms of apparatus suitable for applying the acid solution is also disclosed.
Patent GB-934559-A (GB)
Title: Method of preparing an age-hardened coated metal alloy article
IPC: C23C26/00
Filed: 1961-09-12
Abstract: 934,559. Age-hardened plated metal alloys. M. DREHER. Sept. 12, 1961, No. 32666/61. Class 41. Metal articles of a heat-hardenable alloy, e.g. of copper, are plated preferably with a precious metal, and then heated, e.g. to 500 ‹ C. to harden the base metal and bond it to the plating by diffusion. In examples, specified copper alloys containing silicon, nickel, manganese and combinations thereof are plated with gold and heated to the respective hardening temperature, which is in the range 325-600‹ C. The process may be applied to spectacle frames made from the appropriately profited wire, plated with gold, and heated at 500‹ C.
Patent GB-935503-A (GB)
Title: Reaction medium comprising solution of calcium carbide in a molten halide of lithium or an alkaline-earth metal or a mixture of such halides
IPC: C01B31/30
Filed: 1960-09-23
Abstract: Calcium carbide is dissolved in an anhydrous or substantially anhydrous molten halide of lithium, calcium, strontium or barium or a mixture of such halides.  The calcium carbide which may be in lump, pellet, finely-divided or other suitable form is introduced together with the halide mixture into a reaction vessel lined with stainless-steel, the vessel is heated electrically and a homogeneous solution is formed.  The dissolution should be effected in an inert atmosphere, e.g. of argon.  Fluxing agents, e.g. sodium and potassium halides, for instance the chlorides, may be added to the molten halide mixture.  At atmospheric pressure, the temperatures used for the dissolution can be varied from the melting point of the solvent halide or mixture thereof with a fluxing agent to the point at which the mixture or solvent halide alone volatilizes, e.g. 350 DEG  to 2200 DEG C.  Higher temperatures can be used by employing super-atmospheric pressure.  In preparing the solution either the molten halide solvent is first prepared and the carbide added to it, or the solid carbide and halide are first mixed and the mixture then heated to melt the halide and dissolve the carbide in the molten mass.  In the examples, the molten halides used are (a) lithium chloride, (b) calcium chloride, (c) lithium bromide, (d) a mixture of lithium chloride and potassium chloride, (e) barium chloride, (f) lithium fluoride and (g) a eutectic mixture of lithium chloride and lithium fluoride.ALSO:Metallic lead is prepared by adding anhydrous lead chloride to a molten solution of calcium carbide in lithium chloride at 820 DEG  C., the yield of lead being about 50% of the theoretical.
Patent GB-1033370-A (GB)
Title: Improvements in or relating to flashing light circuit arrangements
IPC: B60Q1/38
Filed: 1963-08-19
Abstract: 1,033,370. Visible signalling apparatus; road traffic signals on vehicles; lamp failure warning devices. J. BECQUET. Aug. 19, 1963, No. 32789/63. Headings G4F, G4N and G4Q. A flashing light circuit comprises a first circuit having resistance, capacitance and a relay winding and a second circuit having a lamp and contacts of the relay. In a vehicle turn indicator system, Fig. 3 (not shown), operation of the turn switch to position G, say, charges capacitor 2 through relay 3 energizing the relay. When capacitor 2 is fully charged the relay releases closing contacts 5 to discharge the capacitor through resistor 4, and the cycle repeats. Further contacts on the relay connect the supply intermittently to left turn indicator lamps 10, 11, 12, 16 on the vehicle and a trailer. The contacts are also arranged to operate high resistance pilot lamps 8 . . . 8e. With the contacts in the position shown, lamps 8, 10 are in series and lamp 8, having a high resistance, is lit when the contacts change over, lamp 8 is shorted out and lamp 10 lit. Failure of lamp 10 prevents pilot lamp 8 from lighting.
Patent GB-328003-A (GB)
IPC: C08G63/48
Abstract: 328,003. Imperial Chemical Industries, Ltd., Baird, W., Hill, R., and Walker, E. E. Jan. 9, 1929. Ester condensation products. - Resins of the polyhydric alcohol polybasic-acid type are manufactured by condensing the polyhydric alcohol with the polybasic acid in the presence of a monocarboxylic acid or acids, a drying oil being incorporated before or during the condensation. The monobasic acid, e.g. butyric acid or stearic acid may be unsaturated and may contain other groups e.g. oleic or ricinoleic acids. Linoleic acid, linolenic acid, or the mixed fatty acids derived from drying oils may be used. Suitable drying oils are linseed oil, china-wood oil, other wood oils &c. In an example glycerol, phthalic anhydride and oleic acid are heated to 200-210‹ C., and linseed oil slowly added. The temperature is raised to 220-230‹ C. when the melt becomes clear, and maintained there for 2“ hours. In another example glycerol, phthalic anhydride, linseed oil acids, and china wood oil are heated to 200-210‹ C. until the melt becomes clear, and then the temperature is raised to 240‹ C. for about 1¢ hours. By the addition of solvent naphtha, turpentine and liquid cobalt drier, a rapid drying varnish is obtained. The resin may also form a constituent of enamels. Specifications 235,595, 273,290, 284,349, 285,459; and 330,949, [Class 70, Indiarubber &c.], are referred to.
Patent GB-1430072-A (GB)
Title: Polymerisation process
IPC: C08F4/00
Filed: 1972-07-13
Abstract: 1430072 Continuous polymerization of ethylene IMPERIAL CHEMICAL INDUSTRIES Ltd 4 July 1973 [13 July 1972] 32809/72 Addition to 1314828 Heading C3P Ethylene is polymerized continuously by contacting a catalyst with a mixture of hydrogen and ethylene in a reaction vessel, the ratio of ethylene to hydrogen in the vessel being kept constant at a value between 1 : 10 and 10 : 1, the total pressure being not greater than 40 kg./cm.<SP>2</SP>, the catalyst being introduced at such a rate as to keep the rate of polymerization constant, and the catalyst being the product of reacting particulate alumina or silica which has hydroxyl groups on the surface but is free of adsorbed water with a compound of formula MR m , where M is a Group IVa metal, vanadium or chromium, m is the valency of M and R is a hydrocarbon or substituted hydrocarbon group. Conveniently the ethylene may be introduced at a constant rate and the catalyst at such a rate as to keep the total pressure constant, continuously or in discrete portions. The melt flow index of the product may be selected by varying the proportion of hydrogen and/or the polymerization rate. The exemplified catalyst is zirconium tetrabenzyl on alumina; other suitable catalysts are as described in Specification 1,314,828.