baber/WOPTO huggingface dataset:
Patent GB-680320-A (GB)
Title: Improvements in or relating to magnetic ferrite materials for magnetic cores
IPC: C04B35/26
Filed: 1947-01-15
Abstract: A homogeneous cubic mixed crystal magnetic ferrite for the manufacture of magnetic cores has a Curie point between 40 DEG  and 250 DEG C and an initial permeability measured at room temperature at 2kc/sec, exceeding 600.  A mixed ferrite, e.g. containing zinc, having such properties may be obtained from two single ferrites of higher and lower Curie points, or by regulating the iron oxide percentage.  A copper zinc ferrite may be prepared by grinding together for half an hour in a ball mill copper zinc and iron oxide in the molecular proportions of 20 : 30 : 50 with 1 per cent of brownstone added, compressing into a ring at 4 tons/sq. cm. heating for 1 hour at 1100-1250 DEG C in oxygen and cooling in oxygen at 5 DEG -10 DEG C per minute.  The grinding and sintering are repeated several times, when all the sintering except the last is at 900 DEG C.  The manufacture of magnesium zinc ferrite and nickel zinc ferrite by similar processes are described.  Values of Curie points and initial permeabilities are given.
Patent GB-751108-A (GB)
Title: Improvements in or relating to turbine blades
IPC: F01D5/18
Filed: 1954-01-18
Abstract: 751,108. Gas turbines, turbine blades. GENERAL MOTORS CORPORATION. Jan. 18, 1954 [Jan. 19, 1953], No. 1376/54. Class 110(3) In a turbine blade cooling system, for example for cooling the turbine rotor blades of a gas turbine engine as shown, each blade 32 has a longitudinal passage 44 connected to a coolant trap chamber 46 formed in the blade adjacent the root, each coolant trap chamber being connected by a transfer tube 54 to a vaporizing chamber 52. The vaporizing chamber 52 is constituted by a ring manifold 53 which is connected by radial tubes 48 to an annular condensing chamber 50 of the condenser 34. The condensing chamber 50 is cooled by means of fluid such as fuel or air under pressure from the engine compressor, which flows through the duct 58 into the chamber 56 and discharges through the duct 60 in the turbine rotor shaft. The coolant sealed within the system may be liquid or solid at atmospheric temperature, for example water, sodium, sulphur, potassium, mercury or fluorocarbons. The amount of coolant in the liquid state present in each blade during turbine operation is shown in Fig. 1. The transfer tubes 54 are so disposed that some coolant will always be present in each blade even when the rotor is still as in Fig. 5 so that no appreciable out-off balance forces are present at starting. The faces of the rotor are cooled bv means of air flowing through the ducts 22, 26.
Patent GB-504212-A (GB)
Title: Improvements in foldable hood fittings for road vehicles, water craft and the like
IPC: B60J7/06
Filed: 1938-01-15
Abstract: 504,212. Vehicle hoods. HEMMING, R.. HEMMING, R. W., and WORRALL, C. Jan. 15, 1938, No. 1381. [Class 108 (i)] A carriage 3 for the hoop-stick of a foldable hood, as used on road vehicles, water craft, and the like, has at least two pairs of rollers 4 and 5, with axes at right-angles to each other, running in channels 6 and 7, the vertical rollers 5 being spring-pressed against opposite walls of their channel 7. Preferably the rollers are mounted at the ends of a rocker bar 5e fulcrumed to the carriage at 5f and controlled by the spring 12. The horizontal rollers are pressed against the bottom of their channel by the spring 13.
Patent GB-231431-A (GB)
Title: An improved method of manufacturing compositions of matter containing synthetic resins
IPC: C08L61/10
Filed: 1925-01-16
Abstract: 231,431. Petroff, G. March 25, 1924, [Convention date]. Compositions containing phenol-aldehydes, cellulose derivatives, &c.-Oxy- or hydrocellulose with or without other substances such as gypsum together with an acid catalyst is added to the liquid product obtained by warming phenol and aldehyde without a catalyst, the mixture is moulded at ordinary temperature, and the articles formed are heated to harden them. According to an example 100 parts of phenol and 110 part; of 40 per cent formalin are heated until the mixture separates into two layers. To the oily layer are added 2 parts of benzene sulphonic acid', 5 parts of 40 per cent formalin, and 110 parts of hydrocellulose. The mass stiffens on standing, and is then moulded. The articles are heated to 110‹ C. to harden them.
Patent GB-620292-A (GB)
Title: Improvements in or relating to air heating devices
IPC: F28D7/16
Filed: 1947-01-15
Abstract: 620,292. Tubular heat-exchangers. CLAYTON DEWANDRE CO., Ltd., WILLETT, S. E., and EDGE, S. H. Jan. 15, 1947, No. 1420. [Class 64(iii)] In an air heater, e.g for vehicles, cabins, aircraft &c., tubes a extending between axially aligned headers b, c and each wound with radially projecting loops d are mounted within a casing e through which air is drawn or blown substantially parallel to the tubes. The tubes may be straight, as shown, or helical. The casing e has outwardly flared ends and a central cylindrical part f which has supplementary plates filling the spaces between the tubes and casing. Alternatively the casing may be cylindrical throughout. Specifications 271,122, [Class 64(iii)], 561,785, 620,290 and 620,291 are referred to.
Patent GB-699396-A (GB)
Title: Improvements in and relating to high pressure shaft seals
IPC: F16J15/44
Filed: 1952-01-18
Abstract: 699,396. Shaft seals. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 18, 1952 [Jan. 20, 1951]. No. 1505/52. Class 122(v) The shaft 3 of a dynamo-electric machine cooled by gas under pressure is sealed where it passes through the machine casing 1 by means comprising a' housing 4 enclosing a chamber 11 supplied through a passage 15a in the housing with sealing liquid at a pressure greater than the gas pressure and having an end wall 5 abutting the casing 1 and provided with an aperture through which the shaft 3 extends, the aperture being partially closed by a sealing ring 6 in the chamber 11 surrounding the shaft with clearance and urged toward the wall 5, the clearance space between the shaft and the portion of the ring adjacent the wall forming a sealing chamber 12 communicating by passages 10 in the ring with the liquid chamber 11 and the space between the shaft and the remainder of the ring forming a cooling chamber 22 supplied through passages 16, 17 in the ring and 18 in the housing 4 with cooling liquid at a pressure lower than the sealing liquid pressure. The sealing ring 6 is urged toward the wall 5 by a garter spring 8 located in the chamber 11 between a chamfer 7 on the ring and the other end wall 9 of the chamber 11 and relative rotation between the ring 6 and the wall 5 is prevented by a pin 6a that projects from the wall into a radial slot in the ring. The sealing liquid and cooling liquid pressures are regulated by differential pressure regulators 14, 20 included in the respective supply lines 13, 19 and responsive to the difference in the cooling gas pressure and the sealing liquid and cooling liquid pressures respectively.
Patent GB-1116325-A (GB)
Title: Dual face rotary shaft seal assembly
IPC: F16J15/34
Filed: 1966-01-12
Abstract: 1,116,325. Mechanical seals. TIMKEN ROLLER BEARINGS CO. 12 Jan., 1966 [3 Feb., 1965], No. 1536/66. Heading F2B. A shaft seal unit comprises a ring member 1, Fig. 1, rotatable with the shaft 4 and provided with oppositely-directed surfaces 5, 6 which carry springs 16, 17 for urging seal elements 11, 12 carried by the ring member into engagement with opposing walls of a stationary casing 14, 15. The sealing elements may be made of P.T.F.E. and secured by an outer ring 9. The ring member 1 is sealed against the shaft by a bonded sleeve 2. In another embodiment, Fig. 4, the seal elements 79 are urged into engagement by spring-fingers 80 and the ring member 71 is sealed against a shaft wear-sleeve 74 by rubber O rings 73, spacers 86, preferably made of P.T.F.E., limiting any axial movement of the ring member. In Fig. 2 (not shown), the sealing elements (39), (40) form part of the ring member and in Fig. 3 (not shown), wave springs (61), (62) are employed. In Fig. 5 (not shown), the ring member is preferably made of aluminium and the O-rings replaced by a single sealing ring of rectangular cross-section. In Fig. 6 (not shown), the seal between the ring member and shaft wear sleeve is in the form of a sleeve (117) which is coated with P.T.F.E. and permits limited axial movement of the ring member with respect to the sleeve (117).
Patent GB-775043-A (GB)
Title: Improvements in or relating to mechanical guiding devices
Inventor: TURNER GEOFFREY RALPH
IPC: B23Q1/36
Filed: 1955-01-18
Abstract: 775,043. Linear dimension gauges. SIGMA INSTRUMENT CO., Ltd. Dec. 22,1955 [Jan. 18, 1955], No. 1546/55. Class 106 (2). [Also in Group XXIV] In a comparator gauge the movable measuring anvil is secured to a member 2 which is guided relatively to a member 1 on the body of the comparator by means of spring strips 3, 4, 5 and 10, 11, 12 secured between the two ends of said members. The member 2 is adapted to be urged in one direction relative to member 1 until a stop screw 19 thereon engages an abutment 17 on member 1 when fluid pressure is supplied to a cylinder 21 secured to member 1, the piston 29 of which acts by a rod 30 on an abutment 32 on member 2. The piston allows the pressure fluid such as air to leak past and escape through holes 31 to provide an air lubrication to minimize fractional losses.
Patent GB-667713-A (GB)
Title: An improved rectifier assembly
IPC: H01L25/07
Filed: 1950-01-20
Abstract: 667,713. Dry-contact rectifiers. STANDARD TELEPHONES & CABLES, Ltd. Jan. 20, 1950 [June 23, 1949], No. 1565/50. Class 37. One or more rectifier plates 2 are mounted on a core of insulating material 1, which may be tubular or solid, and held in position by two lock nuts 4, 5, each having lugs 7 which grip the core surface. The extensions 8 constitute terminals. The terminal may be separate from the lock nut which may have an extension for mounting the assembly.
Patent GB-1134933-A (GB)
Title: Process for the preparation of organo antimony arsenic and bismuth compounds
Inventor: MULLER RICHARD
IPC: C07F9/70
Filed: 1966-01-13
Abstract: 1,134,933. Diammonium fluorosilicate. INSTITUT FUR SILIKON-UND FLUORKARBON-CHEMIE. 13 Jan., 1966, No. 1663/66. Heading C1A. [Also in Division C2] Diammonium fluorosilicate (NH 4 ) 2 (SiF 6 ) is produced as a by-product in the production of trimethyl stibine or diphenyl antimony (III) fluoride. In the first case antimony trifluoride and ammonium methyl pentafluorosilicate react to give trimethyl stibine and diammonium fluorosilicate and in the second ease ammonium pentafluoroantimony, ammonium fluoride and phenyl trifluorosilane react to give diphenyl antimony (III) fluoride and diammonium fluorosilicate.
Patent GB-469320-A (GB)
Title: Improvements in and relating to methods of shaping or moulding granular or pulverulent material under pressure
IPC: B30B11/20
Filed: 1936-01-18
Abstract: 469,320. Moulding granular &c. materials by rolling-machines. JENNINGS, H. W. K. (Menzel, E.) Jan. 18, 1936, No. 1708. [Class 87 (ii)] In the moulding of granular or pulverulent material, such as fuels, iron ores and industrial waste materials, in a rotary press, the rate at which the material to be pressed is fed to the delivery device, which feeds the material between the rotating parts of the press, is kept continuously greater than' the rate at which the pressed material is delivered by the press. As shown, the press comprises an inner disc 2 running in a groove 4 of an outer ring 1, and the material to be pressed is fed by a bladed or fan-like wheel 9 into a part of the groove fitted with a cover 7. This part of the groove is continuously kept filled by the wheel 9 to which an excess of material is always supplied. The material fed in excess to the groove 4 overflows at the edge 6 and is withdrawn through a pipe 10 and again fed to the wheel 9. The press may be such as to produce a solid coherent string or separate pressed pieces or a string divided by indentations or impressions into sections.
Patent GB-291705-A (GB)
Title: Improvements in or relating to shoring structures for mines
IPC: E21D11/00
Filed: 1928-01-18
Abstract: 291,705. Moll, W., and Moll, W., (trading as Moll S÷hne, F. W.). Jan. 18, 1928. Addition to 273,982. Shoring, strutting, and underpinning. - The props or stanchions 16 described in the parent Specification are joined end to end by means of tutular elbow unions 17, and resilient packing members 15, interposed between the ends of the props &c., are inserted through lateral openings 18 at the elbow bends. The packing members 15 may be in the form of poles extending through a number of unions 17, Fig. 2, in a series of polygonal frames, and the ends of two such members may abut inside the union with any suitable joint. Only one lateral opening 18 may be provided in each elbow union. The galley may be shored at the top by an iron beam 20 resting on props 16, as shown in Fig. 1, packing members 21, 23, held in position by caps 24, being interposed at top and bottom. In the alternative construction shown in Fig. 2, the props 16 are set within timber frames composed of frames 3, 5, 6.
Patent GB-1505085-A (GB)
Title: 6,11-dihydrodibenzo - thiepin - 11 - ones methods of preparation compositions and uses thereof
IPC: C07C205/57
Filed: 1976-01-16
Abstract: 1505085 6,11-Dihydro-dibenzo[b,e]thiepin- 11-ones SYNTEX (USA) Inc 16 Jan 1976 [18 Feb 1975 30 June 1975 21 Nov 1975 (2)] 01783/76 Heading C2C Novel compounds I in which R is H, C 1-12  alkyl or a salt-forming group and R<SP>11</SP> is H or Me are prepared by (a) reacting 3 - diazoacetyl - 6,11 - dihydrodibenzo[b,e]thiepin - 11 - one with silver benzoate in the presence of a C 1-12  alkanol to form a compound I [R = C 1-12  alkyl ; R<SP>11</SP> = H] (b) α-methylating a compound I [R = C 1-12  alkyl; R<SP>11</SP> = H] to form a compound I (R = C 1-12  alkyl; R<SP>11</SP> = Me) or (c) hydrolysing an ester or converting a salt into the free acid, esterifying a free acid or converting one ester into another by transesterification, converting a salt into another salt by metathesis or salifying a free acid. Compound I (R = H, R<SP>11</SP> = Me] is resolved into optical isomers and the lisomers thereof is racemised to the dl form. Nitroterephthalic acid is esterified to form the isopropyl ester which is reacted in the presence of NaH with benzyl mercaptan to form diisopropyl benzylthioterephthalate which is hydrolysed to the free acid and converted to the acid chloride; cyclization of the acid chloride leads to 6,11-dihydro-11-oxo-dibenzo[b,e]thiepin- 3-carbonyl chloride which is reacted with CH 2 N 2  or CH 3 CH 2 N 2  to form the 3-diazoacetyl or 3-(α- diazopropionyl) compound. Compounds I [R<SP>11</SP> = H and d and dl compounds where R<SP>11</SP> = Me] have anti-inflammatory analgesic, anti-pyretic, platelet aggregation inhibiting, fibrinolytic and smooth-muscle releasing activity; they form with an excipient a pharmaceutical composition which may be administered orally, parenterally, rectally, topically or vaginally.
Patent GB-969330-A (GB)
Title: Two compression baling press with gate-member
Inventor: RHODES ALFRED
IPC: B30B9/30
Filed: 1960-01-18
Abstract: 969,330. Baling presses. FAWCETT PRESTON & CO. Ltd. Jan. 18, 1961 [Jan. 18, 1960], No. 1802/60. Heading B5F. In a baling press material is first introduced e.g. by a weigh-hopper, into a preparing chamber 3a and is then forced downwards by an hydraulic ram 3 to compress it into a first compression chamber 5A, the ram 3 remaining in its lowermost position to form an upper wall of chamber 5A. A second ram 6 then moves horizontally to finally compress the material into a chamber 5B against a sliding gate member 4. The ram 6 is slightly withdrawn and the gate 4 is slid back, the ram 6 then being advanced again to push the bale into a holding chamber 7. Both rams 3, 6 are finally withdrawn and the gate 4 closed in readiness for the next cycle of the press. In the next cycle the bale in the holding chamber 7 is pushed out of the machine by the next advancing bale.
Patent GB-543445-A (GB)
Title: Improvements relating to stoves for burning solidified petroleum and like fuels
IPC: F24C9/00
Filed: 1941-02-11
Abstract: 543,445. Solidified fuel.burners. CLARK, D. M. (Stirlen, E. D.). Feb. 11, 1941, No. 1872. [Class 75 (i)]  Solidified fuel is burnt in an annular receptacle ,11 supporting by flanged rings 13, 14 connected by bars 15 two perforated cylinders 17, 18 forming a combustion chamber 18<SP>1 </SP>and an inner perforated cylinder 16 forming with the central opening 26 in the receptacle 11 an air passage 16<SP>1</SP>. The receptacle 11 is mounted on a stand 10. The cylinders 16, 17, 18 are preferably of increasing height and the cylinder 17 supports by bars 22 a conical air deflector 21 preferably of the same diameter as the cylinder 17 and spaced nearer the upper edge of the cylinder 17 than that of the cylinder 16. The fuel may be sold packed in receptacles 11 fitted with removable covers, the receptacles being discarded when the fuel is consumed.
Patent GB-777926-A (GB)
Title: Improvements in or relating to discharge valve units
IPC: B65G53/46
Filed: 1953-06-24
Abstract: 777,926. Pneumatic conveyers. POWERGAS CORPORATION, Ltd., and PEAKE, S. June 22, 1954 [June 24, 1953], No. 1927/56. Divided out of 777,923. Class 78 (1). [Also in Group XXIX] A discharge valve unit for discharging a fluent mass of solid material comprises two chambers 2, 3 separated by an intermediate flap valve 5, the upper chamber 2 being connected to a vessel 1 to be discharged through a top flap valve 4 and the lower chamber 3 being connected to a receiving vessel through a bottom flap valve 6, an equalizing valve 7 connecting the lower chamber 3 with the vessel 1 or with the atmosphere or with the receiving vessel, fluid piston and cylinder mechanisms 16, 17, 10 for operating the flap valves 4, 6 and the equalizing valve 7 in timed sequence under the control of a controller 15, and means 19, 20 operated by the movement of the equalizing valve to control a further piston and cylinder mechanism 18 which operates the intermediate flap valve 5. The arrangement is such that the intermediate flap valve 5 is closed before the top and bottom flap valves are open and vice versa. The piston rod of the mechanism 10 operates a lever carrying a tappet 20. As the equalizing valve is moved to cut off the conduit 8 to the vessel 1, the tappet 20 operates a pilot valve 19 controlling the mechanism 18 so that the valve 5 closes. The controller 15 comprises a rotary shaft 21 driven at a desired speed and carrying cams 14a, 14b operating valves 13a, 13b in timed sequence. The valve 13a controls the equalizing valve operating cylinder 10 and the valve 13b controls the operating cylinders 16, 17 of the top and bottom flap valves 4, 6. Specification 777,925, [Group XXIX], is referred to.
Patent GB-924019-A (GB)
Title: Light-protective materials
IPC: C07D311/86
Filed: 1961-01-17
Abstract: 1-hydroxyxanthone compounds of the general formula <FORM:0924019/IV(a)/1> wherein S1 and S3 individually each represent hydrogen, an alkyl group of 1 to 12 carbon atoms or a halogen atom, S2 and S4 are individually the same as S1 and S3 or each is a hydroxyl or an alkoxy group of 1 to 12 carbon atoms or a said alkoxy group containing an hydroxy substituent and n and m each represent 1 or 2 are incorporated in or coated on various polymeric carriers to produce ultra-violet light absorbing materials.  Plasticisers, antioxidants, heat stabilizers and pigments may also be incorporated. In the examples suitable carriers include polyester resins obtained for example from a mixture of polyethylene glycol with methyl methacrylate or from 1, 4, 5, 6, 7, 7-hexachlorobicyclo-(2,2,1)-5,heptene-2,3-dicarboxylic acid; a nitro lacquer containing soluble gun cotton, an alkyd resin mixture, dioctyl phthalate, ethyl acetate, methyl ethyl ketone and toluene; and films or plates produced from cellulose 2 1/2 -acetate or cellulose acetobutyrate, polystyrene, polymethyl methacrylate, polyvinyl butyral, nylon 6, polyethyleneglycol terephthalate, polyethylene, poly-propylene, and a mixture of polyvinyl chloride with dioctyl phthalate. Polymeric polyolefins may be stabilized by hydroxyxanthones of the above general formula wherein S1 and/or S3 are alkyl groups containing 6-12 carbon atoms and/or S2 and/or S4 are similar alkyl groups or alkoxy groups containing 6-12 carbon atoms.ALSO:1-Hydroxyxanthone compounds of the general formula: <FORM:0924019/IV(a)/1> wherein S1 and S3 individually each represent hydrogen, an alkyl group of 1 to 12 carbon atoms or a halogen atom, S2 and S4 are individually the same as S1 and S3 or each is a hydroxyl or an alkoxy group of 1 to 12 carbon atoms or a said alkoxy group containing an hydroxy substituent and n and m each represent 1 or 2 may be prepared by distilling 2-hydroxy benzene-1-carboxylic acid compounds of the general formula:-  <FORM:0924019/IV(a)/2> wherein S3 and S4 and n have the meanings given above, with 1,3-dihydroxy benzene compounds of the general formula:- <FORM:0924019/IV(a)/3> wherein S1, S2 and m have the meanings given above, the distillation being performed at normal pressure, possibly in the presence of condensing agents such as acetanhydride.  Such 1-hydroxyxanthone compounds may also be formed by heating the above starting materials in the presence of water-binding condensing agents such as phosphorus oxychloride or anhydrous zinc chloride, advantageously to 50-100 DEG C.  1-Hydroxyxanthone compounds containing alkoxy groups are obtained, for example, from polyhydroxanthane compounds by alkaline condensation with aliphatic halides, sulphuric acid esters or half esters. Preparations for 1-hydroxy-2,4-di-tert butyl-xanthone, 1 - hydroxy - 3 - (b -hydroxyethoxy)-xanthone and 1-hydroxy-3,6-bis-(b -hydroxyethoxy)-xanthone are particularly described in Example 1.
Patent GB-580046-A (GB)
Title: Improvements in or relating to speed-reducing torque transmission gear
IPC: F16H29/02
Filed: 1944-02-03
Abstract: 580,046. Ratchet gearing; stopping and starting machinery. STANDARD TELEPHONES & CABLES, Ltd., and FIELDING, E. C. Feb. 3, 1944, No. 1977. [Classes 80 (ii) and 80 (iii)] [Also in Group XL] Ratchet gearing, particularly applicable to the remote control of radio equipment in aircraft where a positive drive for tuning devices, wavechange switches and the like is desired, comprises a high-speed driving shaft 11 on which is fixed an eccentric cam 13 engaging a follower 14 pivoted at 15. Riveted to the upper surface of the follower is a substantially L-shaped spring steel strip 16 one end of which is extended rearwardly to engage a stop 17 to keep the follower in contact with the cam, the other end being bent at right angles to form a pawl which engages a ratchet wheel 18 on the low-speed driven shaft 12. The wheel is stepped round by the length of one tooth for every revolution of the cam. A spring detent 19 prevents backward movement. The mechanism to be driven may be connected to the shaft 12 directly or through gearing. To enable the drive to be engageable and disengageable at will, an electromagnet 22 has an armature 23 the free end of which lies under the free end of the follower 14. The armature is normally raised by a strong spring 24 to lift the follower out of contact with the cam and stop the drive. To restore the drive, the magnet is energized to pull down the armature and free the follower. When the drive ceases, the pawl is jammed between the teeth and a stop 25. In a modification, the armature 23 receives the pressure of the rocker 14 endwise.