baber/WOPTO huggingface dataset:
Patent GB-1247218-A (GB)
Title: Improvements in fuel supply systems for aircraft engines
Inventor: SMITH CHARLES PHILIP
IPC: B64D37/00
Filed: 1969-01-16
Abstract: 1,247,218. Gas turbine engine fuel systems. H. M. HOBSON Ltd. Feb.13, 1970 [Jan.16, 1969], No.2656/69. Heading F1G. An aircraft engine fuel supply system comprises a pump, a metering valve and a fluidic vortex valve traversed by fuel and controlling the pressure drop across the metering valve. In the system shown in Fig.4, a centrifugal pump 100 supplies fuel through a metering valve 11. A fraction of the pressure drop across the metering valve 11 is tapped off by a fluid potentiometer comprising a fixed restrictor 27 and a needle valve 25 (the positions of which could be reversed) and applied to a diaphragm 13 in opposition to a spring 14 to control the flow through a nozzle 22 and hence the pressure drop across a restrictor 20 so as to vary the flow through the control port 29 of a vortex valve 28 and hence the main flow through the vortex valve. This in turn controls the pressure drop across a restrictor 30 and hence the flow through the control port 18 of a vortex valve 23 which controls the flow through the metering valve 11. The effect of this arrangement is to maintain the pressure drop across the metering valve 11 at a value determined by the needle valve 25. The vortex valve 28 may be omitted, the vortex valve 23 then being controlled directly by the nozzle 22 and the diaphragm 13 being subjected to the entire pressure drop across the metering valve 11. The spring 14 may be replaced by a centrifugal governor so that the pressure drop across the metering valve 11 is proportional to the engine speed. For a given position of the metering valve 11 the fuel flow to the engine is then proportional to the engine speed. As shown in Fig. 5, the vortex valve 23 may control the flow through a by-pass line 21, and the centrifugal pump may then be replaced by a positive-displacement pump 10. Fig. 5 also shows a modification in which the diaphragm 13 and nozzle 22 act to maintain the pressure drop across a fixed restrictor 31 equal to that across the metering valve 11, thereby controlling the pressure drop across a needle valve 40 arranged downstream of the restrictor. This latter pressure drop is applied to a diaphragm 50 in opposition to a spring 60 to control the flow through a nozzle 70 and hence the pressure drop through the fixed restrictor 20. As before, this controls the flow through the vortex valve 23. The resultant flow through the by-pass line 21 controls the pressure drop across the metering valve 11 in accordance with the function introduced by the needle valve 40. A function of some other variable may be introduced as a mechanical force acting on the diaphragm 50 in place of the spring 60.
Patent GB-784422-A (GB)
Title: Improvements in or relating to colour photography
Inventor: FRY DOUGLAS JAMES
IPC: G03C7/36
Filed: 1955-01-29
Abstract: The invention comprises compounds of the formula:-<FORM:0784422/IV (a)/1> where R1 and R2 are alkyl groups of up to 4 carbon atoms and R3 is an aromatic residue which may be a benzene or naphthalene group and may carry one or more of the following substituents: alkyl groups of up to 20 carbon atoms; aryl; aralkyl; alkoxy; aryloxy; alkyl-, aralkyl-, or aryl-substituted amino; acylamino; sulphonylamino; carboxyl; carboxylic ester; amino substituted carboxylic ester such as dialkylamino alkoxy carbonyl; amonosulphonyl; nitro; thioalkyl; oxyalkyl; oxyalkoxy and polyoxyalkoxy groups, and halogen atoms. Specified substituents are methyl, ethyl, propyl, phenyl, benzyl, methoxy, ethoxy, phenoxy, acetamino, p-toluene sulphonyl amino and ethoxycarbonyl.  When the group R3 contains long chain alkyl groups such as groups of 10-18 carbon atoms, or when R3 is a diphenoxyphenyl group, one or two water-solubilizing groups such as carboxylic or sulphonic acid groups may be present as further substituents of the group R3.  The compounds are prepared by condensing a 2:5-dialkoxybenzoylacetic ethyl ester with a primary aromatic amine containing the R3 residue.  In Example (1) 2:5-dimethoxybenzoylacetic ethyl ester is condensed with amine in xylene and in the presence of pyridine to give 2:5-dimethoxybenzoylacetanilide; Examples (2) to (15) illustrate the preparation of the correspondingly substituted 2:5-dimethoxybenzoylacetanilides from (2) o-chloraniline, (3) o-anisidine, (4) ethyl p-aminobenzoate, (5) p-aminobenzoic acid, (6) anthranilic acid, (7) m-amonibenzoic acid, (8) b 0diethylamino-ethyl p-aminobenzoate, (9) sulphanilamide, (10) 3-amino - 4 - methyloctadecylaminobenzoic acid, (11) N-p-toluene sulphonyl p-phenylene diamine, (12) 2:4-di-o-cresoxyaniline, (13) p-aminothioanisole, (14) p-nitraniline, and (15) p-aminoacetanilide; Examples (16) to (23) similarly illustrate the preparation of 2:5-diethoxybenzoylacetanilides from (16) aniline, (17) o-chloroaniline, (18) o-toluidine, (19) o-anisidine, (20) m-4-xylidine, (21) p-anisidine, (22) 3 - amino - 4 - methyloctadecylaminobenzoic acid, and (23) p-aminobenzoic acid. The compounds are colour-couplers for use in colour photography (see Group XX).  The Provisional Specification also describes compounds of the above general formula wherein R1 and R2 are alkyl groups which may contain more than 5 carbon atoms, such as groups containing 10-18 carbon atoms.  These compounds may contain one or two water-solubilizing groups such as carboxylic or sulphonic acid groups which may be present as substituents of the benzene ring shown in the formula above or as substituents of the residue R3.  Reference has been directed by the Comptroller to Specification 595,314, [Group IV].
Patent GB-555267-A (GB)
Title: Improvements in or relating to automatic guns
IPC: F41A9/30
Filed: 1941-03-03
Abstract: 555,267. Machine guns. VICKERS-ARMSTRONGS, Ltd., and HIGSON, P. R. March 3, 1941, No. 2866. [Class 92 (ii)] A gun feed-box for cartridge belts having disintegrating links is of drum formation, the cartridges being supported between the teeth of spaced sprockets 3 on a rotary shaft 5, and the links being stripped off the cartridges by members 7 on the drum. The separated cartridges are then conveyed by the sprockets to the feed opening in the gun 2. The shaft 5 may be driven by the gun mechanism, and reverse rotation of the shaft is prevented by a ratchet pawl.
Patent GB-198398-A (GB)
Title: The manufacture of new azodyestuffs
IPC: C09B35/08
Filed: 1922-01-31
Abstract: Disazo dyes are prepared by coupling the tetrazo compound from 4 : 41-diaminodiphenyl-3 : 31-dicarboxylic acid on the one hand with an azo dye component which contains a sulphonic or carboxylic group, or two hydroxy or two amino groups, or one hydroxy and one amino group, or a hydroxy group in conjunction with the C CH2.  CO-group of the acetoacetic-anilides or of the pyrazolones, and on the other hand with a pyrazolone or an acetoacetic-anilide compound.  The products dye cotton in orange to red shades which by after-treatment with metallic salts, for example, copper or vanadium salts, are changed into deeper orange-brown or green shades fast to light and washing. In an example the tetrazo compound is coupled with 1-m-aminophenyl-3-methyl-5-pyrazolone and m-aminophenol; the product may be after-coppeted, or diazotized on the fibre and developed with pyrazolone.  The dyeing properties are also given of the corresponding dyestuffs from the following pairs of second components:- 1-phenyl-3-methyl-5-pyrazolone and its p-sulphonic acid, acetoacetic-o-chloranilide and 1 : 8-aminonaphthol-4-sulphonic acid, acetoacetic-o-chloranilide and 1-phenyl-3-methyl-5-pyrazolone, acetoacetic anilide and its p-carboxylic acid.  The Provisional Specification is not limited to the use of a pyrazolone or an acetoacetic-anilide compound as one second component.ALSO:The disazo dyes from tetrazotized 4 : 41-diaminodiphenyl-3 : 31-dicarboxylic acid, 1-m-aminophenyl-3-methyl-5-pyrozolone, and m-aminophenol, may be diazotized on the fibre and developed with pyrazolone.
Patent GB-469613-A (GB)
Title: Improvements in motor-vehicle lighting apparatus
IPC: B60Q1/14
Filed: 1936-01-30
Abstract: 469,613. Vehicle head-lamps. NIER, R. Jan. 30, 1936, Nos. 2884 and 2885. Convention dates, Jan. 30, 1935 and Oct. 31, 1935. [Classes 75 (iii) and 75 (iv)] The head-lamps b of a motor road vehicle comprise a lamp bulb e and a reflector c adapted to project substantially all the light rays downwardly under the axis of the projector in the normal horizontal position, and are adapted to be tilted from the driver's seat either upwardly for distant lighting as in hilly country or on a clear road or downwardly when driving in fog and to be held in any adjusted position. The lamps are tilted more or less downwardly according to the density of the fog, and a variable resistance may be provided in the lamp circuit for reducing the light to minimize irradiation of the fog by reflection as from wet asphalt roads. As shown, the lamps b are connected by a rod h and mounted on trunnions l, supported on the mudguards i, and a screen n for intercepting upwardly-directed scattered rays is mounted on a holder m secured to the lamps, the lower edge o of the screen being located slightly above the plane of the lamp axes. The screen and the lamps are swung upwardly by a spring p and downwardly by a rod r connected to a foot lever s held in adjusted position by a spring-controlled catch u operated by the foot. Alternatively, the lamps may be tilted by means of a Bowden wire or an electromagnetic device. The lamp bulb e is located with its filament in front of the focus of a parabolic reflector c, the lower half of the bulb being provided with a silver coating f. The lamps are provided with a vertically-grooved glass d to spread the light laterally.
Patent GB-1139411-A (GB)
Title: Preparation of 10-‡-methyl steroids
IPC: A61K31/569
Filed: 1965-01-22
Abstract: 1,139,411. Preparation of 10α-methyl-steroids. T. D. THREADGOLD (Philips Gloeilampenfabrieken N.V.) 19 Jan., 1966 [22 Jan., 1965], No. 2919/65. Heading C2U. The invention comprises a process for preparing a 3-keto-4,6-bisdehydro-6-fluoro-, chloro- or bromo-9#,10α-steroid by oxidation of a corresponding 3 - hydrocarbonyloxy - 6 - halo - 3,5-bisdehydro-9#,10α-steroid by manganese dioxide under neutral or weakly acidic reaction conditions in the presence of a solvent. 3 - Hydrocarbonyloxy - 3,5 - bisdehydro 6 - halo- 9#,10α-steroids are prepared from the corresponding 6 - unsubstituted - 3 - keto - 4 - dehydro - 9#,10α-steroids by conversion to an enol ether, halogenation and re-conversion to an enol ether.
Patent GB-966764-A (GB)
Title: Improvements in and relating to apparatus for supplying a group of objects to desired locations in a holder
Inventor: HOBBS KENNETH
IPC: H05K13/02
Filed: 1961-01-25
Abstract: 966,764. Handling transistors. MULLARD Ltd. Jan. 25, 1961, No. 2942/61. Heading B8S. Transistors are positioned into the holes of a jig by means of the apparatus shown in Fig. 1. The apparatus consists of a hollow drum 2 pivoted at 36 to which is fixed plate 1. The bottom surface 4 of plate 1 is formed with end plate 8 and with holes 10 and channels 11, the channels 11 extending into drum 2. Transistors are introduced in mass into the inside of drum 2 and ten of these are to be caused to fall into the respective holes 10 ready for placing into the corresponding holes of a jig. This is done by oscillating the drum 2 together with plate 1 through a cycle about the axis 36. As the plate rotates clockwise the transistors move from drum 2 along surface 4 of plate 1 till they meet end plate 8, and as the plate rotates anticlockwise the transistors move back towards drum 2 along surface 4 and ten of these are captured in so doing by suction introduced into holes 10. The rest fall back into drum 2 which is now in position of Fig. 1. The ten transistors retained in holes 10 are then blown into the corresponding holes of a jig therebelow by air jets introduced at 17. The jig is removed and replaced by another jig, and the cycle of drum 2 is repeated. Supply of jigs, Fig. 6.-Jigs are conveyed towards plate 1 by belt 47, the jigs being reeased singly to a position underneath plate 1 by means of escapement arms 55 and 56. The jig after being filled with transistors is discharged at 57. The drum and plate unit is oscillated by a motor at 41, the drive passing through pin and slot 38; and support shaft 43 is withdrawable against spring 40a to free the drum and plate unit when required.
Patent GB-942457-A (GB)
Title: Improvements in or relating to devices for connecting in electric circuits
Inventor: COCKRAM DAVID FREDERICK
IPC: H01J19/74
Filed: 1960-01-27
Abstract: 942,457. Cooling discharge apparatus. GENERAL ELECTRIC CO. Ltd. April 27, 1961 [Jan. 27, 1960], No. 3025/60. Heading H1D. A device for connecting in an electric circuit comprises at least one electric component having part of its surface in intimate contact with a mass of silicone rubber which is loaded with metal powder and which has been moulded in contact with the part of the surface of the component. In one embodiment a thermionic valve 1 is held in a suspension 2 of aluminium particles in liquid rubber containing a catalyst, and heated to 60 degrees for half-an-hour in an aluminium can 3, whereupon the rubber polymerizes. Copper or zinc powder may be used instead of aluminium and constitute at least 25% by weight of the loaded silicone rubber. The application of the method to a klystron is described.
Patent GB-1048009-A (GB)
Title: Arrangement for interconnecting two mechanical parts
IPC: F16F7/14
Filed: 1965-01-22
Abstract: 1,048,009. Cord fastenings. RICHIER. Jan. 22, 1965 [Jan. 25, 1964], No. 3028/65. Heading E2A. [Also in Division B2] Two mechanical parts 2, 3 are interconnected by a cable 6 passing alternately like a lace over anchoring points 5 on the two parts, so as to permit slight drifting of one part relative to the other. The cable is tensioned by a device 7 and the elasticity of the system increased by a spring 8.
Patent GB-138701-A (GB)
Title: Improvements in or relating to boxes for holding toilet powder, scent and the like
IPC: A45D33/33
Filed: 1919-02-07
Abstract: 138,701. Williams, F. G. Feb. 7, 1919. Boxes, securing to wrist.-A box provided with means for fastening it to a person's wrist is adapted to hold a compressed powder pad, powder puff, sponge, &c. The pad, puff, &c. is secured to or fixed in a plate or ring i, Fig. 3, removably retained within the box a, Fig. 1, by a catch g, beneath which the edge of the plate or ring is inserted, and a stud h engaging with a hole k in the plate &c. The plate &c. may be provided with a net l to hold within the case a sponge saturated with scent &c. The box is provided with a hinged lid, upon the inside of which a mirror, photograph, &c. may be fixed.
Patent GB-390601-A (GB)
Title: Guiding and sliding device for sliding doors or the like
IPC: E05D15/06
Filed: 1932-02-02
Abstract: 390,601. Rectilinear-motion bearings. VEREINIGTE BAUBESCHLAGFABRIKEN GRETSCH & CO., GES., 19, Breitestrasse, Feuerbach, and VÍSTER, R., 144, Birkenwald-Strasse, Stuttgart, both in Wurtemberg, Germany. Feb. 2, 1932, No. 3043. [Class 12 (i).] In a bearing, for sliding doors, lift cages, and the like, in which endless rows of balls or rollers travel around centre pieces b within a housing e, the rolling members c<1> adjacent the guide rail d have an accurate fit and the members c<2> out of contact with the rail d have play. In a modification, the rail d is of channel shape and engages the members c<2>, the inner members c<1> having play and being separated by a partition formed on the housing e. In another modification, the endless rows of rolling members are arranged end to end. The lower row of members c<2>, Figs. 5 and 6, between the centre piece bl and rail d have no play and the upper members c<1> have play, while in the adjacent bearing the upper members c<1> have no play and the lower members c<2> have play. Reference has been directed by the Comptroller to Specifications 152,133 and 156,763, [both in Class 12 (i), Bearings &c.].
Patent GB-1528747-A (GB)
Title: Selector mechanisms for knitting machines
IPC: D04B15/78
Filed: 1975-12-02
Abstract: 1528747 Knitting-machines WILDT MELLOR BROMLEY Ltd 2 Dec 1975 [24 Dec 1974] 03046/78 Divided out of 1528746 Addition to 1160100 Heading D1C The description is substantially the same as that of Specification 1528746, but the claim defines the magnetic selector arrangement in more general terms and specifies the arrangement of jacks and pressers, the invention also being a modification of that claimed in main patent 1160100 by virtue of the butts and magnetic selectors alternating at two levels.
Patent GB-903171-A (GB)
Title: Improvements relating to electrical measuring apparatus
Inventor: SIMPSON HUGH
IPC: G01D5/22
Filed: 1958-01-30
Abstract: 903,171. Measuring electrically. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 21, 1959 [Jan. 30, 1958], No. 3178/58. Class 40 (1). A displacement transducer comprises a coil movable, with the member whose displacement is to be measured, in an alternating magnetic field having a field strength which varies substantially linearly along the displacement path, and means for indicating the voltage induced in the coil. As shown, Fig. 1, the movable coil 3, which may have an iron core, is displaced along the common axis of two fixed coils 1, 2, each of which has a progressively increasing winding density from its inner end to its outer end, the fixed coils being connected differentially to an A.C. source so that a zero field exists midway between them. Displacement of the coil 3 from the null position produces a signal, the phase and magnitude of which are indicative of the direction and extent of the displacement, the signal being passed, via a phase-sensitive network 5, Fig. 2, to a voltmeter. If displacement on one side only of the datum is required, one of the fixed coils provides a uniform field and the phase-sensitive network is dispensed with.
Patent GB-810660-A (GB)
Title: Improvements in or relating to beverage brewing apparatus
IPC: A47J31/06
Filed: 1956-02-01
Abstract: 810,660. Beverage-making machines. UNITED COFFEE CORPORATION. Feb. 1, 1956 [May 11, 1955], No. 3181/56. Class 129. [Also in Group XVII] A percolator, which serves as a beverage charge package prior to its installation in a brewing and dispensing machine, comprises a container 10 consisting of an outlet member 11 with a discharge opening and a second member 12 with an inlet opening within which container a bagged charge 15 of coffee or the like 14 is placed supported on a removable dished screen 13 adjacent the outlet opening, the container inlet being adapted to be removably associated with the supply of hot liquid in the machine. Hot water under pressure is fed from source 22 through valve means 22b, duct 22a and sealing coupling 23 to the percolator from which it passes through member 11 to a tank 24. Member 11 is supported in a hole in a shelf 20 and accommodates member 12 on top of which the sealing coupling 23 is held by weight 21. The coffee grounds or the like are held in a tubular bag of filter material whose opposite ends are gathered and sealed.
Patent GB-1464844-A (GB)
Title: Gate valve and method of manufacture
IPC: F16K27/10
Filed: 1975-01-24
Abstract: 1464844 Making gate valve housings M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 24 Jan 1975 [11 Feb 1974] 3208/75 Heading B3A [Also in Division F2] The housing for a gate valve has a main body part 11 formed by end walls 14 having flow apertures 17, side walls 16, and end mounting flanges 22, 23; an upper body extension 12 formed by outwardly bowed end walls 24, inwardly-arched side 25 and end closure walls, and a mounting flange 26; and a lower body extension 13 similar to the upper. An operating bonnet assembly 62a is welded to the upper body extension while a foot plate 33 is welded to the lower body extension. The upper and lower body extensions are made by welding side and end walls into a rectangular-sectioned tube, closing the ends of the tube with end closure plates welded to the side and end walls, clamping the tube intermediate its ends, internally pressurizing the tube to bow the end walls and inwardly arch the side walls and the end closure plates, and severing the tube, intermediate the area which has been clamped, into two body extensions. The ends of the extensions so formed are rectangular and have the mounting flanges welded thereto. If a short gate is used the lower body extension may be dispensed with, in which case two upper extensions are made simultaneously the tube being clamped centrally to form two identical extensions.
Patent GB-794378-A (GB)
Title: Chlorinated hydrocarbons
IPC: C07C17/10
Filed: 1956-02-01
Abstract: The invention comprises a method of chlorinating aliphatic hydrocarbons in the vapourphase above 200 DEG  C. by the action of a chlorinating gas, generally in presence of a chlorination catalyst, on a hydrocarbon or one of its partially chlorinated derivatives, the chlorinating gas being a mixture of chlorine with a fully substituted chlorohydrocarbon, capable of losing 2 chlorine atoms to form a double bond, and which has a generally endothermic reaction on the starting material, the conditions being so chosen that the reaction is just sufficiently exothermic to develop quantitatively without a dilution gas, with stoichiometric proportions of reagents, if desired, and without heat being provided or removed.  In examples, a mixture of chlorine and hexachlorethane reacts at about 480 DEG  C. with propane, 420 DEG  C. with methane, and 360 DEG  C. with dichlorethylene, to give products containing mainly carbon tetrachloride, and tetrachlorethylene; methylene chloride, chloroform, carbon tetrachloride and tetrachlorethylene; and tetrachlorethylene, respectively.  The catalyst is generally macroporous activated carbon impregnated with cupric chloride or other metallic chlorides.  Specifications 749,408 and 788,828 are referred to.
Patent GB-140753-A (GB)
Title: Improvements in methods of constructing electric resistance grids
IPC: H01C3/10
Filed: 1920-02-03
Abstract: 140,753. Ogden, C. E. March 21, 1919, [Convention date]. Resistances. - The contacts 3 of resistance-grids 1 are coated with material of substantially similar resistance to that of the grid, f o r instance nickel - plating, before assembling in stacked formation on bolts 5. The grids may be of cast-iron and the whole surface may be nickel-plated.