baber/WOPTO huggingface dataset:
Patent GB-1036884-A (GB)
Title: Improvements in gas-cooled nuclear reactors
Inventor: TAYLOR ANTHONY JAMES
IPC: G21C13/02
Filed: 1961-10-31
Abstract: 1,036,884. Reactors. BABCOCK & WILCOX Ltd. Oct. 31, 1962 [Oct. 31, 1961], No. 38996/61. Heading G6C. In a carbon dioxide gas-cooled reactor the core is completely surrounded by a return shield formed of blocks of neutron-absorbing material enclosed in metal casing. The shield absorbs both fast neutrons and gamma radiation. A spherical pressure vessel surrounds the shield and heat exchangers are mounted between the pressure vessel and shield. The core support grid is carried by vertical columns which pass through the pressure vessel and rest on the floor of the biological shield which encloses the pressure vessel, flexible bellows being provided to permit relative movement of the pressure vessel and the core. The pressure vessel is suspended by slings from the biological shield. The coolant gas circulators are housed in bosses forming part of the pressure vessel and urge the gas vertically upwards through the core and downwards through the heat exchangers. Control of the coolant flow is effected by flap valves and the exchangers incorporate both economisers and superheaters. Coolant is extracted from the main circuit and passed through external filters to control the dust content. The floor of neutron shield may be formed as a hopper to permit removal of debris from the core.
Patent GB-1224891-A (GB)
Title: Improvements in or relating to apparatus and processes for causing adhesion or cohesion together of materials
Inventor: LUC PENELOPE JANE VESEY
IPC: B29C65/06
Filed: 1966-09-01
Abstract: 1,224,891. Welding by pressure. P. J. V. LUC. 1 Dec., 1967 [1 Sept., 1966], No. 39153/66. Heading B3R. [Also in Divisions B2, B5, C7, D1 and E1] Two areas of the same or different materials, e.g. metal, are bonded together by treating a solid surface of one or both of them by relative parallel movement between a tool and a solid working surface which is a surface other than the solid surface to be treated, this frictional treatment causing bonding when the areas are brought intimately together. Specified friction tools include a rotating ball, a cone, a nylon brush, a felt cylinder, a polytetrafluoroethylene, polyimide, felt or steel disc, an aluminium, steel or tungsten-plated steel drum, and a metallic ripple-edged wheel. Suction means may be provided within or on one side of the tool to hold the surface in contact therewith. Preferably, the speed of movement of the tool is at least 75 cm./see. relative to the working surface. If the speed and duration of the friction are insufficient to create a bond adhesion may be achieved by auxiliary means, e.g. electrical fields, ultrasonic vibrations using the frictional tool as an anvil, or heat. In one embodiment, Fig. 18, for the discontinuous intermittent sealing in circular areas of a tin foil sheet to a silver foil sheet, the friction tool comprises a rotating steel cylinder 48 coated with tungsten carbide and recessed at 48a. The tool is mounted on the rod 50a of a piston 50b in a pneumatic cylinder 50 the operating cycle of which is controlled by a timer 51. The sheets 59a, 59b are placed on an insulating backing sheet and the tool acts through a steel sheet coated with polytetrafluoroethylene.
Patent GB-1298777-A (GB)
Title: Process for producing 1-chloro-1-fluoroethylene
IPC: C07C17/00
Filed: 1971-08-20
Abstract: 1298777 1 - Chloro - 1 - fluoroethylene; vinyl fluoride DENKI KAGAKU KOGYO KK 20 Aug 1971 [21 Aug 1970 (2)] 39254/71 Heading C2C 1 - Chloro 1 - fluoroethylene is produced from 1 -chloro- 1 -fluoroethane by a vapour phase thermal decomposition with chlorine at 300- 700‹ C. HF may be present to reduce side reactions. The preferred molar ratio of 1 -chloro- 1 - fluoroethane : Cl 2  is 1 : 1-10, the preferred residence time in reaction is 0À1-30 seconds and the preferred pressure is 1-10 atmospheres. In the process of the invention vinyl fluoride is also produced in comparatively high yield, e.g. in examples selectivities of greater than 20% are reported.
Patent GB-1245336-A (GB)
Title: Improvements in or relating to hay making machines
IPC: A01D78/10
Filed: 1969-08-06
Abstract: 1,245,336. Hay-making machines. BUCHER-GUYER A.G. MASCHINENFABRIK. 6 Aug., 1969 [27 Aug., 1968], No. 39271/69. Heading A1F. In a hay-making machine, two rotary rake heads 1 and 2 are carried at the ends of an arm 3 adjustably pivotable about the axis of the head 1, so that the head 2 may be held (in operation of the machine) to one side or the other of the direction 39 of travel of the machine. The rake heads 1 and 2 may be rotated in the same or opposite directions when the head 2 is to either side of the direction 39, so that the heads co-operate or operate individually to form one or two hay swaths 45, Figs. 5-7 (only Fig. 6 shown) when using one or two swath plates 43, or simply to ted hay (Fig. 4, not shown). The pivotable arm 3 is selectively lockable to a gear box 7 secured to a frame 4 (for coupling to the three- or single-point linkage of a tractor), and to the shaft 8 of the rake head 2, by means of pins 36 engaging apertured segments 34 and 34'. The machine in operation is supported by its rollers 25 and 29, and is free to roll about the axis of a sleeve 15 connected by its pins 16 to the arms 17 of the frame 4, and to pivot up and down about the transverse pins 16. When the machine is raised for transportion by the tractor, the machine becomes locked against such rolling by the automatic interengagement of ring gears. The head 2 is driven by a tensioned V-belt 33 from the head 1 which is rotated via the gear box 7 by the power takeoff of the tractor. Cams within housings 9 rotate the tunes 24 of the rake heads 1 and 2. The arm 3 is telescoped for transportation.
Patent GB-963955-A (GB)
Title: Improvements in or relating to couplings
IPC: G21C19/10
Filed: 1962-10-17
Abstract: 963,955. Controlling nuclear reactors. GENERAL DYNAMICS CORPORATION. Oct. 17, 1962 [Nov. 7, 1961], No. 39352/62. Heading G6C. [Also in Divisions E2 and F2] A coupling mechanism for connecting a nuclear reactor control rod 25 having an enlarged head 31 forming a male coupling member with an elongated driving shaft 35 having a lengthwise bore 37 comprises a female coupling member 61 rotatably attached to one end of the shaft 35 and means 65 accessible through the bore 37 for releasably locking the member 61 to the shaft 35 to prevent rotation therebetween, the member 61 including a bayonet-type socket 101 which receives the head 31 of the rod 25 and is so shaped that rotation of the socket 101 relative to the head 31, when this is fully inserted in the socket, locks the rod 25 to the shaft 35. The head 31 is in the form of a sphere having portions cut away to provide a cruciform cross-section and is inserted through a tapered opening in the base of the coupling member 61 towards a receiving means 67 pivoted on pins 113 constituting the bayonet-type socket 101. When the head 31 is suitably oriented with respect to the socket 101 it may be inserted through the latter into a cavity 103 and then rotated to prevent separation of the rod 25 from the shaft 35. The entry 105 to the socket 101 is shaped so as to allow a limited amount of either lateral or angular misalignment between it and the head 31. The coupling member 61 is releasably locked to the driving shaft 35 by balls 83 which are housed in cylindrical recesses 85 in the upper part of the member 61 and which are movable, by means of the locking means 65, axially of the shaft 35 into pockets 87 in the inner wall of a tubular housing 59 secured to the end of the shaft 35. The locking means 65 includes a hollow stem 91 with an upper portion 93 serving to close the inner ends of the recesses 85 and a lower portion 95 of reduced diameter which permits radial inward movement of the balls 83 from the pockets 87. Extending from the upper end of the locking means 65 is a collar 97 which is threadedly engaged with the inner wall of the housing 59 and the locking means 65 may be rotated into its locking position by means of a reach rod of splined formation at its lower end and which is inserted through the bore 37 of the shaft 35 and which engages with splines 99 on the inner surface of the locking means 65. The reach rod is also used to rotate the coupling member 61, prior to its being locked to the shaft 35, in order to lock the head 31 in the socket 101, by means of splines 77 on the inner surface of the coupling member 61. As seen in Fig. 1 (not shown), the shaft 35 forms part of a control rod drive which includes a hollow lead screw connected to the shaft 35 through a ball-nut coupling so as to axially displace the shaft 35, when rotated through a clutch by a two-speed, reversible, electric positioning motor. In addition, the lead screw is coupled to a fluid motor which is operable under "scram" conditions to rapidly displace the shaft toward the reactor core.
Patent GB-1109501-A (GB)
Title: Improvements in or relating to moulds for casting blocks and methods of casting such blocks
IPC: B28B7/30
Filed: 1963-10-07
Abstract: 1,109,501. Casting concrete blocks. K. T. NAYAGAM. 5 Oct., 1964 [7 Oct., 1963], No. 39462/63. Heading B5A. [Also in Division E1] Building blocks are cast on a floor 53 in a mould including side walls 51, 52 which support collapsible formers 56 for making cavities in the block. One end of the formers passes through suitably shaped holes 54 in wall 51 and the other ends are supported by rods 57 bolted to wall 52, the formers, if required, passing through shuttering 59 which is used to form apertures through the moulded block. Core members, e.g. 58, may be attached to the formers in order to form passages opening into the cavities formed by the formers or, as in the Figure, to define the edges of the mould thus, if necessary, separating a plurality of blocks cast on one operation upon floor 53. The formers (see Figs. 6-9, only Fig. 6 of which is shown) comprise two co-operating channel-shaped members 71, 72 separated by wedge-shaped members 78 operated by a parallel link mechanism 76. Wire reinforcement may be used to strengthen the block in strategic areas, e.g. around the cavities formed therein.
Patent GB-1042780-A (GB)
Title: Tool-joints for drill strings
IPC: F16L37/138
Filed: 1964-09-28
Abstract: 1,042,780. Drill string joints. RUMANIAN MINISTRY FOR THE PETROLEUM AND CHEMICAL INDUSTRY. Sept. 28, 1964 [Sept. 27, 1963], No. 39463/64. Headings F2G and F2U. In a drill string joint the end of an upper pin member having an elliptical portion 2 and a smaller cylindrical end 4 with an intervening recessed portion 3 is inserted into an elliptical bore in the end 7 of a lower box member having side openings into which are inserted locking members 6 with lugs at their lower ends entering the recess 3, the members 6 being held in position by an encircling spring 15 and an external sleeve 11 and locking ring 12. The arrangement permits drive in either direction of rotation.
Patent GB-1014886-A (GB)
Title: Copolymers and articles
Inventor: CLARK KEITH JASPER
IPC: C08F210/00
Filed: 1962-10-18
Abstract: Solid transparent (defined) copolymers of 4-methyl pentene-1 with a minor amount of propylene or butene-1 are prepared by copolymerizing the monomers under air and moisture-free conditions in the presence of a stereospecific catalyst and optionally hydrogen and then purifying the product using the method of Specification 942,297.  The catalyst used in the examples is a mixture of titanium trichloride and aluminium diethyl chloride.
Patent GB-1517754-A (GB)
Title: Styryl compounds
IPC: C09B23/00
Filed: 1975-09-30
Abstract: 1517754 Styryl dyestuffs SANDOZ Ltd 30 Sept 1975 [4 Oct 1974 29 Jan 1975] 39937/75 Heading C4P The invention comprises styryl dyestuffs of the general formula wherein R 1  is C 2 -C 8  alkylene or C 5 -C 8 -cycloalkylene, R 2  is C 5 -C 8 - cycloalkyl optionally substituted by up to 3 methyl groups, C 1 -C 10  alkyl optionally substituted by C 1 -C 4  alkoxy, C 1 -C 4  alkylthio, C 1 -C 4  alkylcarbonyloxy, C 1 -C 4  alkoxycarbonyloxy or C 1 -C 4  alkoxycarbonyl, or is C 3 -C 10  alkenyl, either R 3  is H, halogen, C 1 -C 4  alkyl, C 1 -C 4  alkoxy or C 1 -C 4  alkoxycarbonyl, and R 4  is H, halogen, cyano, trifluoromethyl C 5 -C 8  cycloalkyl, C 1 -C 4  alkoxy, C 5 -C 8  cycloalkoxy, C 1 -C 4  alkylthio, C 5 -C 8 -cycloalkylthio, phenyl, phenoxy, phenylthio, phenylthio-C 1 -C 4  alkyl, phenyl-C 1 -C 4  alkyl, phenoxy C 1 -C 4  alkyl, phenylazo, C 1 -C 4  alkoxycarbonyl, C 5 -C 8  cyclo alkoxycarbonyl, phenoxycarbonyl, benzoyl, benzoyloxy, phenoxycarbonyloxy, phenylsulphonyloxy or phenyl-C 1 -C 4  alkylthio, or R 3  and R 4  are located on adjacent carbon atoms and complete a 5-or 6-membered saturated or unsaturated carbo- or heterocyclic aromatic ring optionally having a benzene ring fused thereto and R 5  is H, Cl, Br, methyl or methoxy, any alkyl or alkoxy radical as R 3  or R 4  being optionally substituted by C 1 -C 4 - alkoxy, phenyl or C 1 -C 4  alkoxycarbonyl; any cycloalkyl contained in R 4  being optionally substituted by up to three methyl groups or by C 1 -C 4  alkoxy, phenyl or C 1 -C 4  alkoxy carbonyl, any phenyl group contained in R 4  being optionally substituted by up to two halogen, methyl, C 1 -C 4  alkoxy or C 1 -C 4  alkoxycarbonyl radicals with the provisos (i) that any alkoxy radical substituted by alkoxy has at least two carbon atoms and (ii) where R 3 , R 4  and R 5  are all H then R 2  is alkyl, alkylthioalkyl or alkoxyalkyl which all contain at least 6 carbon atoms or is C 3 -C 10  alkenyl. They are prepared by reacting a compound of general formula wherein X is O or= N<SP>+</SP>R 7 R 6 A<SP>-</SP> wherein either R 7  is alkyl and R 6  is alkyl or phenyl or R 6  and R 7  together form a 4 or 5 membered alkylene chain and A- is an anion with malononitrile. The reaction preferably takes place in an inert solvent at 50-150‹C in presence of an organic base. The dyes dye polyesters, 2À5 and triacetates and polyamides in yellow and greenish yellow shades.
Patent GB-904580-A (GB)
Title: Device for collecting unintentionally lost mother's milk
IPC: A61F13/14
Filed: 1958-12-12
Abstract: 904,580. Discharge collecting appliances. HEISTEIN-HANSON, H. Dec. 12, 1958, No. 40228/58. Class 81 (2). A device for collecting unintentionally lost mother's milk consists of an approximately cone-shaped hood 1 of waterproof material and an apertured disc 2 secured inside the hood to form a pocket with the hood. The hood 1 and apertured disc 2 may be made of synthetic plastic, oiled silk or fabric and glued together, the hood 1 being formed from a disc with one or two wedgeshaped cut-out portions, the edges of which are glued together. Porous water-absorbent material 3, e.g. cotton wool or cellulose, is placed in the pocket. The hood is secured in position by a garment in a brassiere so that the apertured disc 2 fits tightly against the breast, the pocket being kept open by the absorbent material 3.
Patent GB-1114844-A (GB)
Title: Improvements in or relating to endless conveyors
Inventor: THOMSON CHARLES
IPC: F23K3/00
Filed: 1964-10-02
Abstract: 1,114,844. Endless conveyers. SOLAR THOMSON ENGINEERING CO. Ltd. 3 June, 1965 [2 Oct., 1964], No. 40265/64. Heading B8A. A conveyer 10 comprises an endless chain of buckets connected by pairs of pivot pins 18 at right angles to each other. The conveyer 10 runs through a smooth flexible guide-tube 11 made of a plastics material which can be secured to supports as required. Each bucket is moulded from plastics in two parts 12, 13, each part having two lugs 15 and one lug 16 at their trailing and leading edges, respectively, with holes at right angles one to the other. A coupling piece 17 fits between the lugs 16 of a given bucket and the lugs 15 of the preceding bucket being retained by a pivot pin 18. The pair of pivot pins 18 mutually at right angles provide a universal joint between adjacent buckets.
Patent GB-1209729-A (GB)
Title: Improvements in and relating to optical exposure arrangements
IPC: G03B7/099
Filed: 1969-08-13
Abstract: 1,209,729. Photo-electric exposure arrangements; view-finders. RICOH K. K. Aug. 13, 1969 [Aug. 19, 1968], No.40380/69. Heading G2A. An exposure arrangement comprises a viewfinder which has a penta prism or penta roof reflecting mirror 1 having a light inlet 1a and a light outlet 1c, first photo-electric means 4 mounted adjacent the light outlet and directed to receive only light passing through a predetermined part of the light inlet, second photo-electric means 5 mounted adjacent the light outlet and arranged to receive light reflected by a final reflecting surface 1b of the prism or mirror, and an electric circuit selectively responsive to the output of the first or the second photo-electric means whereby to give respectively a selective or an average light exposure indication. The second photoelectric means consists of two elements arranged on either side of a view-finder eye-piece 2. In the case of a prism a slanting surface (1ca) Fig.3 (not shown) is provided against element 4 to obviate light losses by reflection and refraction. A condenser or lattice may be positioned in front of the photo-electric elements to increase the intensity of light received by the elements.
Patent GB-1429368-A (GB)
Title: Grinding wheel
IPC: B24D5/02
Filed: 1973-08-29
Abstract: 1429368 Abrasive wheel MOTOREN-UND TURBINEN - UNION MUNCHEN GmbH 29 Aug 1973 [31 Aug 1972] 40746/73 Heading B3D A high strength grinding wheel, such as an electro-erosive grinding wheel, comprises a metal disc 1 to which a coating 2, 3 is applied by a plasma spraying process, the coating consisting of a mixture of metallic binder and abrasive particles and being relatively narrow in comparison with the diameter. The disc may be of chemically resistant stainless steel and is fixed in a lathe so that its perimeter can be roughened. A plasma spraying unit having a container for the binder, such as nickel alloy, and a container for abrasive powder is mounted in front of the disc and, as the disc is rotated, the binder is sprayed on the disc and then the abrasive is increasingly supplied so that the proportion of abrasive to binder increases with increase in the diameter of the wheel.
Patent GB-1428048-A (GB)
Title: Production of stain resistant clear sealed anodized aluminium oxide coatings
IPC: C25D11/24
Filed: 1973-08-30
Abstract: 1428048 Sealing anodized aluminium LOCKHEED AIRCRAFT CORP 30 Aug 1973 [5 Sept 1972] 40908/73 Heading C7B An anodized Al oxide coating is sealed by contacting it (e.g. by dipping or spraying) with first a solution containing chromate and tungstate ions, e.g. 0.1 to 5% CrO 3  and 0.5 to 10% WO 4  salt, to partially seal the coating, then a further solution containing 0.1 to 10% of a salt of Ni or Co and a weak acid, such as boric, citric, formic or acetic acid e.g. Ni acetate, to render the coating stain resistant. The further solution may contain boric, citric, formic or acetic acid, or ammonium or alkali metal salt of such acid, as buffer. Either or both solutions may contain one or more anionic, cationic or nonionic wetting agents and have a pH of 4.5 to 8. The chromate and tungstate may be present as K, Na, Li or NH 4  salts.
Patent GB-1161798-A (GB)
Title: Method and Means for Radiolocation of a Radio Receiving Station
IPC: G01S1/30
Filed: 1966-09-13
Abstract: 1,161,798. Radio navigation. SOC. D'ETUDE ET D'APPLICATION DES TECHNIQUES NOUVELLES " NEO-TEC." 13 Sept., 1966 [21 Sept., 1965], No. 40954/66. Heading H4D. Relates to a phase-comparison path-difference radio-navigation system in which spaced transmitters A, B radiate respective pairs of unmodulated waves of frequencies F 1 , F 3  and F 2 , F 4  respectively, the receiver utilizing the phase or the beat from the frequencies F 1 , F 2  or F 3 , F 4  (f=F 1  F 2 =F 3  - F 4 ) to afford its hyperbolic position-line. According to the invention, the receiver includes a local oscillator 3 substantially of frequency f the phase of which is compared in a phase discriminator 7 with that of one of the beat frequency signals after phase-shifting by an amount X of the latter by a phase-shifter 5 controlled by a motor 6 from the output of discriminator 7; a phase-shift - X/N, where N=(F 1 +F 2 )/2(F 1 -F 3 ), is introduced by a phase-shifter 10 in the channel carrying the other beat frequency signal; and the outputs of phase-shifter 10 and of the first beat frequency channel 1 are compared in phase in a discriminator 11 to control the frequency of local oscillator 3 to maintain it at the value f. In one transmitter a stable local oscillator of frequency f may act on one or two discriminators to maintain the transmitted frequencies, e.g. F 2 , F 4  phase-stable and such that F1 - F2 = F 3 - F 4  = f, Fig. 3 (not shown).
Patent GB-1315884-A (GB)
Title: Stabilization of 1,1,1-trichloroethane
IPC: C11D7/50
Filed: 1971-09-02
Abstract: 1315884 Stabilization of 1,1,1-trichloroethane SOLVAY & CIE 2 Sept 1971 [28 Sept 1970] 40984/71 Heading C2C [Also in Division C5] 1,1,1-Trichloroethane is stabilized against decomposition by metals by the addition of 2- methyl-3-buten-2-ol and one or more additional stabilizers which are aliphatic alcohols, cyclic ethers, diaryl ethers, nitriles, nitroalkanes or ketones. 1 to 6% of total stabilizer is used. The alcohols are C 1 -C 7  alcohols which may be saturated or unsaturated, substituted or unsubstituted; preferred are tert-butyl alcohol and tert-amyl alcohol. The nitriles are C 2 -C 7  nitriles which may be aromatic or aliphatic, saturated or unsaturated, substituted or unsubstituted, e.g. acetonitrile and benzonitrile. The nitroalkanes contain 1 to 4 C atoms, e.g. nitromethane. The diaryl ether is preferably diphenyl oxide. The cyclic ethers may be mono- or poly-cyclic ethers optionally containing other heteroatoms besides O, comprising one or more rings each having 5 or 6 carbon atoms, which may be saturated or unsaturated, substituted or unsubstituted; preferred are 1,4-dioxane and 1,3,5-trioxane. The ketones contain 3 to 7 carbon atoms and may be substituted or unsubstituted, e.g. methylethyl ketone. The 1,1,1- trichloroethane may be mixed with other chlorinated solvents.
Patent GB-1128398-A (GB)
Title: Improvements relating to sliding windows
Inventor: GREEN CHARLES
IPC: B60J1/16
Filed: 1966-09-14
Abstract: 1,128,398. Vehicle sliding windows. BECKETT, LAYCOCK & WATKINSON Ltd 15 Aug., 1967 [14 Sept., 1966], No. 41108/66 Heading E1J. In the upper sliding portion of a vehicle window in which the upper panes 15, 16 slide horizontally on guide rails 20 nylon runners 25 of channel section held in grooves 23 in the lower frame member 21 stop short of the end of the frame by means of a stop member 30 which serves as a continuation of the runner and has the same cross-sectional shape as the runner to be accommodated in the groove 23 and additionally has a lengthwise lip 32 to engage under a step 33 on the rail 20, and is secured to the frame 21 by a screw 36 passing through the lug 35 on the stop 30 and screwed home into the part circular groove 39 in the frame member; so that the sliding frame is held against lifting and retains the 'runner 25 on the guide rail 20. The screw 36 may also serve to secure together at the corner of the frame the lower frame member 21 and the side frame member 38 the end portion of which is sandwich between the end of the member 21 and the lug 35.
Patent GB-1347729-A (GB)
Title: Dual gap magnetic head assembly
IPC: G11B5/10
Filed: 1971-09-06
Abstract: 1347729 Magnetic heads MAGNETIC HEAD CORP 6 Sept 1971 [12 May 1971] 41398/71 Heading G5R In a shielding arrangement for the trans ducing elements of a multi-track magnetic head assembly, three copper block housing sections 112, 114, 116 are slotted at 118, Fig. 5, and 124, Fig. 6, to provide locations for the core members 122, 130 of each element, and it is stated that the production of eddy currents in the highly conductive copper housing material between each pair of elements is sufficient to dissipate cross-talk flux. Materials of resistivity greater than about 2 micro-ohm centimetres, e.g. aluminium, brass, &c., are not suitable for the housing.