baber/WOPTO huggingface dataset:
Patent GB-1282155-A (GB)
Title: Circuit breaker with improved trip means
IPC: H01H83/20
Filed: 1969-10-08
Abstract: 1282155 Automatic circuit breakers WESTINGHOUSE ELECTRIC CORP 8 Oct 1969 [24 Oct 1968 (2)] 49472/69 Heading H1N The tripping mechanism of an automatic circuit breaker comprises polepieces 131, 133; permanent magnets 139, 141, 142, 143; a fixed keeper 153 and a movable armature 163, the latter being coupled to an actuator 161; and coils 135, 137 bucking the permanent magnetic flux so as to divert the flux from the low reluctance path through the armature to the higher reluctance path through the fixed keeper, thus releasing the armature to trip the circuit breaker. The coils are energized by D.C. pulses, on overload, by a protective circuit (not shown). The keeper 153 is separated from the polepieces 131, 133 by an insulating sheet 155. The actuator 161 is coupled by a shock absorbing spring 171 and biased, to separate the armature and polepieces, by a spring 79; it is coupled to a tripping lever 187 having an extension 195 which acts on a first latch 63 of the circuit breaker; a resilient resetting lever 199 acts to return the armature when a bar 19 coupling the three sets of contacts 13 moves to the open position. Release of the first latch 63 releases a second latch 53 which is pushed aside by a pivoted member 45 allowing a toggle linkage 29, 31 to collapse upwards opening the contacts. The final movement acts to release an auxiliary latch 69 allowing a second toggle 33, 31 to collapse downwards, thus resetting the first toggle 29, 31 and the main latches ready for reclosure. Reclosure is brought about by turning a handle 113 on shaft 115; a crank 117 is rotated to pull the bottom end of a closing spring 83 upwards, its top end being restrained by a looked toggle 93, 97. The final movement of crank 117 acts to pull upwards a rod 105 slightly; this releases the toggle 93, 97 allowing the spring to drive the rod 105 rapidly upwards to re-engage the pin 39 with latch 69 and thus reclose the contacts. In an alternative embodiment (Figs. 8-19, not shown) a three phase circuit breaker is assembled between four parallel plates; two closing springs are mounted on opposite sides of the middle plates and coupled between fixed points on a cam-shaft arranged to operate the contacts from open to closed position on release of the springs. The springs are wound by rotating the cam-shaft.
Patent GB-1281409-A (GB)
Title: Solid-state microwave generating device
IPC: H03C3/22
Filed: 1969-10-09
Abstract: 1281409 Frequency modulation MATSUSHITA ELECTRONICS CORP 9 Oct 1969 [12 Oct 1968] 49599/69 Heading H3R [Also in Division H1] A voltage tunable microwave oscillator comprises a cavity resonator containing a semiconductor body having therein or at its surface a first junction exhibiting a negative resistance when reverse biased beyond breakdown, and a second junction exhibiting an impedance variable with the bias applied to it to permit tuning and/or modulation of the oscillator. The junction may be any metal-semi-conductor, metalinsulator-semi-conductor, or semi-conductorsemi-conductor interface able to exhibit the required characteristic. In one embodiment (Fig. 2, not shown) the junctions are formed in opposite faces of a P-type germanium wafer by indiffusion of antimony. The area of the first junction is limited by silica masking, while the variable impedance junction extends over the entire opposite face of the wafer which is bonded to a heat sink. In the other embodiment (Fig. 3) the junctions, both formed by diffusing antimony into a lightly doped epitaxial layer 6 on a more heavily doped N-type germanium substrate 6<SP>1</SP>, are situated in 100 Á diameter mesas 500 Á apart.
Patent GB-1486615-A (GB)
Title: Digital television system
IPC: G09G5/42
Filed: 1974-11-18
Abstract: 1486615 Vector display systems INTERNATIONAL BUSINESS MACHINES CORP 18 Nov 1974 49780/74 Heading H4T The system displays one or more straight lines (vectors) on a raster-scanned television screen, each line being generated in response to a series of digital words each representing a portion (sub-vector) of the line. A vector to be displayed is encoded into a sequence of digital sub-vector words which pass to a storage arrangement. The storage arrangement stores the words in an appropriate list, respective lists containing those sub-vector words which define a sub-vector which starts on the same raster line. The words in a list are read out in turn, the lists being read in the order in which the corresponding raster lines appear on the screen. Each word read from the storage arrangement causes a symbol generator to provide signals which result in the generation of the relevant sub-vector on the screen by bright-up of the raster. In one arrangement, Fig. 4, the vector to be displayed causes a processor 50 to determine the co-ordinates of the origin of the vector, its slope, and its length. It also determines the "octant" of the vector, i.e. in which of four 22¢ degree sectors the slope of the vector occurs. The processor output passes to an encoder 100 which develops the sequence of sub-vector words. Each such word represents a standardized sub-vector, i.e. a sub-vector regarded as starting in the top left or top right corner of a matrix of 16 Î 16 elementary areas and ending in one of the areas at the side of the matrix. For example, in the display shown in Fig. 3 a vector A is regarded as consisting of a particular standardized sub-vector (no. 13) repeated five times A1-A5. Each sub-vector word specifies the sub-vector code (e.g. 13), its X, Y origin (e.g. 2, 93 for sub-vector A1), its length, colour intensity, &c. The sub-vector words pass to buffer store 200 where they are sorted into lists, each list storing only those words having the same Y value, i.e. each sub-vector in a given list starts on the same raster line. The lists pass to buffer 300. For each line of the raster scan the corresponding list is read word by word: each word read from the top of the list is rewritten at the bottom unless the vector is to be erased from the display. Additions to the list are written at the bottom of the list at the appropriate time in the list cycle. Each word read from buffer 300 causes symbol generator 400 to pass display control signals via a partial raster store, e.g. 604, to the relevant television display, e.g. 700, for display of the corresponding subvector. In addition alpha-numeric and other symbols or patterns may be displayed: each is contained within a 16 Î 16 matrix, as are the sub-vectors, and is represented in the output of processor 50 as a corresponding word which is passed direct to buffer 200 for insertion in the appropriate list to cause display as described above for the case of sub-vectors.
Patent GB-1281918-A (GB)
Title: Steam turbine plant
Inventor: KALVERBOER CORNELIS
IPC: F01D21/14
Filed: 1969-10-13
Abstract: 1281918 Steam turbines BROWN BOVERI & CO Ltd 13 Oct 1969 [14 Oct 1968] 50082/69 Heading FIT A steam turbine plant having in series a steam generator 1, high-pressure turbine 3, water separator or other container 5 and low-pressure turbine 6 has a steam control valve 8 and a safety shut-off valve 9 upstream of the H.P. turbine 3 and corresponding valves 10, 11 downstream thereof. The valves 8, 10 are controlled by the turbine speed governor 15 which varies the leakoff at 16 of oil from the valve operating system 17. Should the turbines exceed a safe speed, a monitor 19 opens an outlet 20 in the oil system 21 of safety valves 9, 11 so that the latter move to a fully closed position to shut-off the steam flow. If a fault occurs in any of the valve servomotors resulting in a steam pressure build up within separator 5 then pressure limiters 23, 25 open further outlets 24, 26 from the oil systems 17, 21 to cause valves 8 to 11 to close. Limiter 25 may operate at a slightly higher pressure than limiter 23. In a modification, Fig.2 (not shown), the water separator 5 includes a superheater heated by H. P. steam supplied from the generator 1 through a pipe (12). The latter includes safety shut-off valves (13, 14) linked respectively to the oil systems 17, 21 so as to operate with the valves 8 to 11. In a further modification the interstage valves 10, 11 are not linked to the valves 8, 9. In further arrangements the valves can be controlled by pneumatic or electrical systems rather than oil.
Patent GB-1283387-A (GB)
Title: X-ray double pulse exposure apparatus and method
IPC: A61B5/352
Filed: 1969-10-13
Abstract: 1283387 Sizing by X-ray photographs X-SCOPE CORP 13 Oct 1969 [11 Oct 1968] 50096/69 Heading G1M [Also in Division H5] The change in heart size between two different chosen instants of the cardiac cycle is determined from the non-superimposed portions of two X-ray photographs taken, one at each of the two instants, on the same sheet of X-ray film. An X-ray cardiac synchronizer designed to permit the taking of photographs at two adjustable instants of a given cardiac cycle is described (see Division H5).
Patent GB-1113972-A (GB)
Title: Improvements in or relating to aryloxy propanols and the manufacture thereof
IPC: C07D303/22
Filed: 1965-05-03
Abstract: Novel 1 - amino - 3 - aryloxy - 2 - propanols of the general formula <FORM:1113972/C2/1> wherein R is hydrogen, C1- 6 alkyl, C1- 6 alkoxy, halogen, trifluoromethyl, nitro, phenyl or styryl and R1 is hydrogen or C1- 6 alkyl, are prepared by (a) reacting ammonia with the corresponding 1,2 - epoxy - 3 - aryloxypropane, or (b) hydrolysing the corresponding N-[3-aryloxy-2-hydroxypropyl] succinimide, or (c) reacting hexamethylene tetramine with the 1,2-epoxy-3-aryloxypropane and hydrolysing the resulting addition product, or (d) hydrogenolysis of an N - benzylamino - 3 - aryloxy - 2 - propanol. Methods (a), (b) and (c) are used for compounds where R1 is hydrogen and method (d) where R1 is C1- 6 alkyl.
Patent GB-1485398-A (GB)
Title: Method of making fibrous alkali metal titanates
IPC: C01G23/00
Filed: 1974-11-22
Abstract: 1485398 Fibrous alkali metal titanates MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 Nov 1974 50694/74 Heading C1A Fibrous alkali metal titanates are prepared by melting a mixture of a titanium compound and an alkali metal compound at a temperature by at least 1000‹ C., cooling the product to form a glassy material which is crushed to powder and treated in an autoclave with aqueous solution at temperatures of at least 350‹ C. The molar ratio of M 2 O to TiO 2  should suitably be at least 1. Seeding with fibrous alkali metal titanate improves the yield rate. In the examples, TiO 2  and K 2 CO 3  are heated to give a glassy material and the powdered product is heated in an autoclave with either water or aqueous solutions of 0À5 N KOH, NaOH, CsOH or RbOH. In Example 4, Na 2 CO 3  is used instead of K 2 CO 3 . The resulting fibrous alkali metal titanate has an average diameter of <10 Ám and a length/ diameter ratio of >5.
Patent GB-1354953-A (GB)
Title: Polymer processing
IPC: C08K5/053
Filed: 1971-11-01
Abstract: 1354953 Processing chloroprene elastomers MERCK & CO Inc 1 Nov 1971 [5 Nov 1970] 50700/71 Heading C3E Chloroprene polymers are vulcanized using a mixture of magnesium oxide in dispersible form and pentaerythritol. The mixture may be a dispersion in a medium comprising a rubber plasticizer, a surface active agent or a mixture of plasticizer and said agent and/or a metallic soap. In the examples a neoprene formulation is vulcanized in the presence of a magnesium oxide/pentaerythritol mixture dispersed in mineral oil, or in naphthenic petroleum oil containing nonylphenoxypoly (ethyleneoxy) ethanol and calcium stearate. The dispersion may be in stick or pelletized form.
Patent GB-1077385-A (GB)
Title: An improved method of operating a nuclear reactor
IPC: G21C19/00
Filed: 1965-07-01
Abstract: 1,077,385. Reactors. ATOMIC ENERGY OF CANADA. July 1, 1965 [Sept. 9, 1964], No. 51163/66. Divided out of 1,077,384. Heading G6C. A reactor comprising a first region of neutron flux at a first level and a second region at a lesser level is operated by reducing the normal reactivity of a fuel for the reactor by dispersing a material of neutron capture cross-section of at least 20,000 barns in adjacent relationship to the fuel to form a fuel piece, placing the fuel piece into the first region, allowing the fuel to regain its normal reactivity, subsequently removing the fuel piece from the reactor, allowing poison build-up in the fuel to reduce the normal reactivity of the fuel once again and inserting the fuel piece into the second region, the quantity of the material being chosen so that under the neutron bombardment in the first region, the normal reactivity of the fuel is restored in a period short compared with the life of the fuel in the first region. The material may be gadolinium, samarium or cadmium and is intimately mixed with the fuel, or disposed in a sheath for the fuel piece or in a surround defining a coolant channel for the fuel piece. The fuel may comprise uranium enriched in U-235 in which case the poison is Xe-135. A suitable fuel element has Al sheathed U-Al alloy fuel in which the material of high neutron capture cross-section has been dispersed by solid solution in the alloy, forming an annulus between an outer and an inner coolant flow tube. In another fuel element, the material is in solid solution in the Al sheath of each of the U-Al alloy rods of a cluster of such rods received within a coolant flow tube, while in a further fuel element, the fuel forms an outer and an inner annulus within an outer flow tube, in the Al of which flow tube the material is in solid solution.
Patent GB-1382895-A (GB)
Title: Photographic mount sealing apparatus
IPC: G03D15/10
Filed: 1972-11-09
Abstract: 1382895 Mounting transparencies EASTMAN KODAK CO 9 Nov 1972 [10 Nov 1971(2)] 51785/72 Heading G2X Apparatus for sealing a photographic mount having first and second parts in overlying relationship, the second part having a number of pins which extend through corresponding openings in the first part, is characterized by means for passing the mount between a roller and a support so that the pins are peened over the holes by the roller. As shown in Fig.2, the mount, for a print or transparency 10, rests on the second mount part 3 from which extend a number of pins 5. Hinged to part 3 along an edge 6 is the first mount part 2, which has a number of corresponding holes. This is laid on a table 16 having two guide bars 23, 24 between which the mount can slide. The mount is pushed in the direction of arrow 22 by a sliding carriage 18 until it comes into abutment with a wall member 25 having an inclined cam plate 27 at its lower end. Thus as the mount continues to be pushed in the direction of arrow 22, mount part 2 is folded over towards part 3, and finally, as  the mount passes between the table edge 28 and the lower edge 29 of cam plate 27, parts 2 and 3 are brought together in overlying relationship, the pins 5 engaging through the holes 4. The mount now passes between a pair of rollers 30, 31, which are spaced apart a distance slightly less than the combined thickness dimension of the mount. Roller 31 is mounted on a fixed shaft 33, but roller 33 is mounted on a shaft 32 which can move against the action of springs 40, 41 urging it towards roller 31. Rubber rings 42, 43, acting as spacing members, are mounted on roller 30. As the mount is moved into the nip between the rollers, its leading edge 46 is deflected by roller 31 into contact with roller 30. The pins 5 are peened over the holes 4, as seen in Fig.4, the rollers being of sufficiently hard material to effect this.
Patent GB-1219898-A (GB)
Title: Improvements in or relating to combustion apparatus
Inventor: JAMIESON JAMES BARRY
IPC: F23R3/28
Filed: 1967-11-15
Abstract: 1,219,898. Gas turbine combustion apparatus. TECHNOLOGY, MINISTER OF. Nov. 15, 1968 [Nov. 15, 1967], No. 51981/67. Heading F1L. [Also in Division F4]. The invention relates to combustion apparatus, for example of a gas turbine engine, comprising an air inlet duct connected through the upstream wall of the combustion chamber, a fuel supply pipe located within the chamber and extending across flow from the duct to obstruct the flow, a fuel delivery nozzle being mounted on the supply pipe so as to discharge fuel in an upstream direction into the duct along the centre line thereof. The upstream end wall 1 of a combustion chamber is formed with a series of air inlet ducts 3 and a series of hollow fuel supply tubes 4 are located adjacent the outlets of the ducts 3, the tubes comprising nozzles 5 through which fuel discharges in an upstream direction into the inlet ducts 3 so that the fuel is mixed with the air in the ducts before discharging into the combustion chamber. In a second embodiment, stub pipes 7 are connected to the tubes 4 and project into the inlet ducts whereby the fuel is discharged further upstream into the air flow through the ducts.
Patent GB-521390-A (GB)
Abstract: 521,390. R÷ntgen-ray apparatus. SCHALL & SON, Ltd., and HAINE, L. G. Oct. 17, 1938, No. 30045. [Class 98(1)] An attachment for enabling X-ray apparatus comprising an X-ray tube and a photographic plate support on opposite sides of a couch to be used for tomography, comprises a member supported by the couch and carrying a pivot of a lever coupling the X-ray tube and the negative support, the pivot being adjustable on the member so that the lever pivots about an axis lying in the desired plane of the object, together with an electric motor for moving the lever and control means co-ordinated with the moving parts of the attachment such that X-rays are generated only during the movement. The drawing shows the attachment applied to an X-ray apparatus comprising an X-ray tube 1 carried by a horizontal arm 2 mounted on a column 3 so as to be capable of vertical movement and of rotating about its axis, the column 3 being traversable lengthwise of a couch. The attachment comprises a framework 8 detachably secured by clamps 9, 10 to rails at the side of the couch framework and carrying a motor 14 which drives an endless chain 16 through a change-speed gear box 15 and an electromagnetic clutch (not shown). A bar 18 secured to the chain engages a coupling pin on the column 3, which is thus traversed by the motor. A bar 20 secured to the frame 18 carries a vertically adjustable pivot member 21 for a lever 24 the upper end of which carries a collar 25 which is clamped to the arm 2, the lower end being provided with a catch which engages the film casette (not shown) to traverse it on rails lengthwise of the couch. The collar 21 being adjusted so that the pivotal axis of the lever 24 is in the plane to be radiographed, the movement of the column 3 causes the lever to pivot about this axis so that the tube 1 is always. so directed that the tube 1 is always so directed that the central ray is incident on the same print of the film or plate. The reversible motor is controlled for driving the chain 16 in either direction by a double throw switch 32, the control circuits causing operation of the motor, energization of the clutch, and the supply of high-tension current to the tube in sequence. At the end of the travel one of two limit switches 34, 35 is engaged by the bar 18, and cuts off the high-tension supply and de-energizes the clutch so that movement ceases. When a Potter-Bucky grid is employed it is released by a solenoid after the motor has been energized, but before the clutch drive to the chain 16 operates, and near the beginning and towards the end of its movement it operates contacts which respectively make and break the high-tension circuit.
Patent GB-1164649-A (GB)
Title: Storage of Articles
Inventor: BRADBURY LESLIE TYRRELL
IPC: A47B53/02
Filed: 1966-11-23
Abstract: 1,164,649. Cabinets. G. A. HARVEY OFFICE FURNITURE Ltd. 23 Oct., 1967 [23 Nov., 1966], No. 52350/66. Heading A4B. Rows of storage cabinets 10 on wheels or other elements have access lanes 11 on both sides whereby the wheels allow any cabinet to project into a lane to allow articles to be stored or withdrawn, the floor between the lanes having fixed therein guide members 12 which do not project into the lanes and cooperate with the wheels or other elements. The guides have stops limiting cabinet movement and may have cabinet anti-tipping devices. Further guide means may be fitted in any clear head room above the cabinets and automatic locking devices may be provided. The cabinets may be formed with side doors 14, drawers 15 or as open racks.
Patent GB-1363427-A (GB)
Title: Vehicle window arrangement
IPC: B60J10/02
Filed: 1971-10-27
Abstract: 1363427 Glazing BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 27 Oct 1971 [3 Nov 1970] 52701/70 Heading E1R A vehicle window has a frame member 3 secured by adhesive 4 to body 1 and bonded to glass pane 2. The frame member is of metal or plastics. Trim member 5 is provided.
Patent GB-1286695-A (GB)
Title: Colloid-dye compositions
Inventor: GRAHAM JAMES LEO
IPC: G03C1/825
Filed: 1969-10-30
Abstract: 1286695 Photographic filter layers; optical filters EASTMAN KODAK CO 30 Oct 1969 [5 Nov 1968] 53261/69 Headings G2C and G2J Oxonol dyes in a hydrophilic colloid are deaggregated by the addition of an amphoteric surfactant of the formula:- where R represents an aliphatic hydrocarbon group having from 8-20 carbon atoms, x is 1 or 2 and M is a hydrogen ion or another cation which contributes to the water solubility of the surfactant. Oxonol dyed gelatine layers containing the above additive may be used as photographic filter and anti-halation layers and as optical filters.
Patent GB-1519550-A (GB)
Title: Treatment of tobacco
IPC: A24B5/16
Filed: 1976-12-21
Abstract: 1519550 Cutting and puffing stem tobacco R J REYNOLDS TOBACCO CO 21 Dec 1976 [22 Dec 1975] 53298/76 Heading A2C Tobacco stem is converted into pipe or cigarette tobacco by the steps of cutting at a moisture content of from 18 to 50% by weight, puffing, and then cutting again to a fineness of at least 25 cut per inch. The puffing step is preferably carried out by treating the cut stem with a volatile liquid such as trichlorofluoromethane followed by heating in a hot gas such as steam.
Patent GB-1066712-A (GB)
Title: Improvements in and relating to waterproof roof structures
Inventor: EDWARDS RAYMOND MONTAGUE
IPC: E04D5/14
Filed: 1962-06-29
Abstract: 1,066,712. Tube &c. couplings. F. BRYNILDSEN. Feb. 6, 1964 [Nov. 7, 1962], No. 42094/62. Heading F2G. Hooks 3 secured in a sleeve 1 have a free edge with a straight portion extending at an acute angle to a plane normal to the direction of insertion of tubes 2, 2a into the sleeve and a convexly rounded corner at an end of the free edge, the hooks being adapted to engage the tubes and prevent withdrawal thereof except by a relative screwing motion of the tubes and sleeve.
Patent GB-1160379-A (GB)
Title: Device for Automatically Advancing the Drive Stations of Installations for Mining Minerals.
IPC: E21F13/08
Filed: 1966-12-02
Abstract: 1,160,379. Mineral-mining installations. STAMICARBON N.V. 2 Dec., 1966 [2 Dec, 1965], No. 54149/66. Heading E1F. An electro-hydraulic system for supplying one or more pre-determined quantities of pressurised fluid to a pusher ram between a mineral-mining installation drive station and a set anchor unit to advance the station at a rate corresponding to the rate of cutting away of a mineral face. Initiation of the system is due to a mining machine of the installation actuating, during passage of the machine along the face, a switch to set the system into operation. Three preferred systems are described in detail.
Patent GB-1445088-A (GB)
Title: Stability devices for missiles
IPC: F42B10/64
Filed: 1972-11-24
Abstract: 1445088 Missiles DEFENCE SECRETARY OF STATE FOR 22 Nov 1973 [24 Nov 1972] 54328/72 Heading F3A A ballistic or a self-propelled missile, or a winged missile of the gliding type, comprises at least two stabilizing fins 2 mounted aft of the centre of gravity of the missile, each fin being mounted on a pivot 4 aft of the aerodynamic centre of the fin and being rotatable through a small arc each side of a datum position 6 corresponding to stable motion of the missle. The arc of rotation is limited by stops 5. The fins are biased towards the datum position by springs.