baber/WOPTO huggingface dataset:
Patent GB-910366-A (GB)
Title: Gradient fuel plates
IPC: G21C3/16
Filed: 1961-08-31
Abstract: 910,366. Nuclear reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 31, 1961 [Jan. 11, 1961], No. 31305/61. Class 39 (4). A nuclear reactor of the flux-trap type (Fig. 3), comprises a fixed beryllium reflector 17 surrounding a removable beryllium reflector 16 and an annular fuel region 14 through which passes a central cylindrical channel 15, the region 14, being occupied by inner and outer fuel elements 25 and 26 respectively (as shown in Fig. 5). Located between region 14 and reflector 16 are two concentrically nested control cylinders 18, 19 fabricated in three stacked sections 20, 21 and 22 of aluminium, titanium and dysprosium, respectively, of successively increasing neutron absorption. At the beginning of the reactor cycle, the control cylinders 18, 19 are in the position shown in Fig. 3, but are progressively withdrawn as the reactivity falls as a result of fuel burn-up. The inner fuel element 25 consists of two concentric aluminium tubes 27, 29 between which are disposed aluminium-clad fuel plates 28 of involute form, while the outer fuel element 26 similarly consists of tubes 30, 32 and fuel plates 31. The reactor core is mounted within a pressure shell (not shown) through which ordinary water is circulated as coolant and moderator, that flowing through the central channel 15 forming an inner moderator " island." The fuel plates are of composite form, as shown in Fig. 6 in the case of the inner fuel plates 28. Each fuel plate 28 comprises a primary core 34 consisting of, for example, 19 % wt. uranium (enriched to 90% in U<SP>235</SP>) ,  9 Î 10<SP>19</SP> atoms/cc. boron, 2 % wt. silicon, the balance being aluminium, and varies in thickness from a minimum value at the edge held by tube 27 to a maximum value at point 35 to an intermediate value at the edge held by outer tube 29, the thickness varying inversely with the neutron flux across the plate. Bonded to the sides of the core 34 are two pairs of aluminium wedges 36 containing, for example, 9 X 10<SP>19</SP> atoms/cc. boron, and forming a secondary core. The composite core is of uniform thickness across the plate and is bonded to a cladding 37 of aluminium. The boron, which acts as a burnable poison, can if desired be contained only in the wedges 36 to give a poison gradient inverse to the fuel gradient. The outer fuel plates 31 are similar to the inner fuel plates but contain no boron. The reactor is provided with beam facilities and hydraulic rabbit facilities for experimental use and, in addition, the central channel 15 may serve as a receptacle for target materials used in the production of radioactive isotopes.
Patent GB-640532-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: B60C19/00
Filed: 1947-11-26
Abstract: 640,532. Elastic-fluid turbines. BRITISH THOMSON-HOUSTON CO., Ltd., and JOHNSON, J. W. Nov. 26. 1947. No. 31338. [Class 110(iii)]. The gap by which turbine blade roots are introduced to the annular blade groove in the rotor is closed by a block b of dovetailed c r o s s-section held in place by a second piece c. The parts b, c are assembled as shown prior to the machining of the sides of the rotor blade groove. The part c is then withdrawn and the part b moved back from the blade groove. When the blades are in position, the part c is re-inserted and secured by grub screws d.
Patent GB-257566-A (GB)
Title: Improvements in ice making and ice-cream freezing machines
IPC: F25C1/145
Filed: 1925-12-15
Abstract: 257,566. Ribi et Cie. Ang. 27, 1925, [Convention date]. Ice-cream freezers; ice-making, plate apparatus for.-Apparatus of the kind comprising a hollow cooling-drum 1 arranged in a vessel 15 containing water or ice-cream to be frozen is provided with stop valves for controlling the flow of liquefied refrigerant and its vapour to and from the interior of the drum, and with removable stirring and scraping members for the material to be frozen. The cooling-drum contains an inner drum 2, the refrigerant being evaporated in the annular space between the drums. The inlet stop valve may be situated at any convenient part of the conduit between a condenser and the inlet conduit 4, which may be axial or situated at one side of the axis. The outlet valve 32 is placed in a branch fitting G through which extends the outlet conduit 5. The vessel 15 is supported by lugs 16, 17 detachably engaging bayonet slots in a ring 18 carried by a pillar 14. The vessel 15 may be insulated and the stirrers consist of arms 33, 34 detachably mounted on a driven bevel wheel 23, which is protected by a cover 21. The stirrer 33 has one edge acting as a scraper on the drum 1 and the other stirrer 34 a scraper for the wall of the vessel 15, while the stirrers have serrated members 35 which cooperate so as to throw the material from one stirrer into the path of the other. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the employment of an evaporator coil inside the drum 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-935114-A (GB)
Title: Floor panels
IPC: E04F15/02
Filed: 1959-09-17
Abstract: 935,114. Floors. R. J. HALLE. Sept. 13, 1960 [Sept. 17, 1959], No. 31707/59. Class 20 (4). In a floor and ceiling structure covered on both surfaces with square panels 10, the panels have cut-away corners 25 so that four adjacent panels abut about an upright 23 or a filling plate 16. Ribs 55 are provided on the underface of the floor panel, either four ribs as shown, or two parallel ribs. The panels are assembled on a lattice of girders 36, 42, beams 43, 44, 46 and optionally struts 49. Some of the panels may be composed of part panels 27, 28, 29, 30, 31. Specifications 905,602 and 910,646 are referred to.
Patent GB-362602-A (GB)
Title: Improvements relating to drain pipes
IPC: E02B11/00
Filed: 1930-10-22
Abstract: 362,602. Drainage pipes. WHITAKER, D., 24, Hodford Road, Golders Green, London. Oct. 22, 1930, No. 31740. [Class 99 (ii).] A pipe for ground drainage is made of a porous aggregate, such as pumice, with sufficient cement and sand to hold it together, and a part or the whole of its external surface is of flat formation, as shown in Fig. 1 for example, to facilitate the laying of the pipe and to minimize sinking thereof when,laid. The ends of the pipe are rounded off, Fig. 5, so as to interfit with those of adjacent pipes and permit of relative angular movement therebetween.
Patent GB-1485714-A (GB)
Title: Method of and apparatus for erecting a riser within a column
IPC: E02B17/02
Filed: 1975-07-29
Abstract: 1485714 Method and apparatus for erecting well risers within columns GEORGE WIMPEY M E & C Ltd 29 July 1975 31756/75 Heading E1F A method of erecting a well riser within a column 11 (particularly a support column of a marine production platform) comprises storing a plurality of riser pipe sections 23 in vertical alignment in a lower part of the column, moving one of said sections horizontally to a predetermined location, lifting said section vertically a distance substantially equal to the length of a succeeding section, moving the said succeeding section to said horizontally predetermined location for connection to the first section, and repeating the raising and horizontally moving procedure until a riser is built up within the column. As shown a column 11 extends from the base 10 of a production platform resting on the sea bed, pipe sections 23 are stored on sliding supports movable on a beam 27 and a rope 30 extends around the pipes to a winch 31. A rope 33 attaches, via a collar 32, to the riser and extends from a hydraulic lifting means at an upper part of the column. A jack can be disposed beneath the section at said location to facilitate connection. The pipe sections can be moved horizontally on and by any suitable means and can be stored in arcuate array.
Patent GB-720455-A (GB)
Title: Improvements in and relating to automatic signalling and warning devices for liquid-tanks for the indication of leakage therefrom
IPC: G01F23/14
Filed: 1952-12-15
Abstract: 720,455. Fluid actuation of switches. BOSSARD, K. Dec. 15, 1952 [Dec. 15, 1951], No. 31775/52. Class 38 (5) [Also in Group XIX] The invention relates to electrical switches adapted to be closed by pressure-responsive means when the pressure acting on said means falls below a predetermined value. In Fig. 2, the pressure applied to a Bourdon tube 19 causes the tube to pivot a mercury switch 23 about an axis 21 such that the mercury does not close the contacts in the switch. When the pressure falls below a predetermined value, the tube 19 allows the switch 23 to tilt in a manner causing the contacts to be closed (Fig. 3). Alternatively, Fig. 4, a mercury switch 39 may be moved above a pivot 37 by a float 33 in one limb of a U tube 31, the arrangement being such that when the pressure in the other arm 31<SP>1</SP> falls below a predetermined value the float 33 causes the mercury switch to be tilted to a position closing its electrical contacts. In Fig. 1 an electrical signalling device 16 is connected to a rod 14 operable by a diaphragm 13 in a container 12 connected to a pipe 9. When the pressure in the pipe 9 falls below a predetermined value the diaphragm 13 causes the signalling device 16 to be operated. The switches are used in means for indicating leakage in liquid-holding tanks (see Group XIX).
Patent GB-507731-A (GB)
Title: Improvements in or relating to expansion joints
IPC: E01C11/10
Filed: 1938-11-04
Abstract: 507,731. Rubber compositions. INTERNATIONAL LATEX PROCESSES, Ltd. Nov. 4, 1938, No. 31962. Convention date, Nov. 6, 1937. Drawings to Specification. [Class 70] [Also in Group X] A method of forming an expansion joint in an expansion joint space between two constructional members, such as paving slabs, consists in inserting a compressible and expansible material in the space and anchoring it to the constructional members by forming in situ between the material and the constructional members a deposit of solids from an uncoagulated latex composition. The term " latex " is used to designate coagulablo aqueous dispersions of elastic materials, including artificial dispersions of rubber as well as natural latex. Two suitable latex compositions comprise (I) centrifuged latex, Potassium hydroxide solution, sulphur paste, diamyl ammonium diamyl dithiocarbamate emulsion, sodium silicate, whiting, and zinc oxide paste, and (2) rubber reclaimed from tyres, whiting, rosin, zinc oxide, sulphur, sodium hydroxide and tetramethyl thiuram monosulphide. In these compositions, the diamyl ammonium diamyl dithiocarbamate and the tetramethyl thiuram monosulphide act as low-temperature accelerators. A further composition, which is stated to adhere readily to the constructional members, comprises centrifuged latex, potassium hydroxide solution, sulphur paste, diamyl ammonium diamyl dithiocarbamate emulsion, casein solution, sodium silicate, a china clay aqueous dispersion, aluminous cement, and zinc oxide paste. Before pouring this composition into the joint, a 33<1>/3 per cent dispersion of sodium silico fluoride may be added to act as a delayed coagulant. Other delayed coagulants, which may be added instead of the sodium silico fluoride, are a watery emulsion of pine tar or a polyvalent metal salt. The latex compound may be made heat-sensitive by the addition of polyvalent metal salts, disubstituted guanidines, or an ammonium salt of a strong acid and zinc oxide. In the case of a heat-sensitive latex which is not coagulable at normal temperatures, the compound may be heated in situ, as by playing live steam on the joint, to produce more or less immediate gelling.
Patent GB-1223895-A (GB)
Title: Improvements in or relating to electrical attenuators
Inventor: PYE WALTER ARNOLD
IPC: H03H7/24
Filed: 1968-07-04
Abstract: 1,223,895. Electrical attenuator. WELWYN ELECTRIC Ltd. 4 July, 1969 [4 July, 1968], No. 32002/68. Heading HlR. An electrical attenuator device for controlling the input power of an electrical circuit comprises an attenuator unit 18 including at least one electrical attenuator, each terminal of which 8, 9, 10, 11, 12, 13, 14, 15 is connected to an electrical contact element, and a base 17 having a plurality of electrical contact elements each for mating with one of the contact elements of the unit and for simultaneous connection to the electrical apparatus, the unit and base being matable in a plurality of relative orientations selectively to effect connection or disconnection between the attenuator, or attenuators, and the electrical circuit. Interengagement is achieved by a projection on the base 2 (Figs. 2A, 2D, not shown) engaging an opening 16 in the unit. The attenuators employed may consist of resistors interconnected in the required balanced or unbalanced configuration, or film circuit attenuators comprising an insulating substrate having deposited thereon film resistors interconnected by metallic film conductors to produce the required configuration.
Patent GB-376615-A (GB)
Title: Improvements in or relating to aerials and feeding arrangements therefor
IPC: H01Q9/14
Filed: 1931-11-18
Abstract: 376,615. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Nov. 18, 1931, No. 32045. Convention date, Nov. 18, 1930. [Class 40 (v).] In order to match the impedance of a feed-line with the aerial impedance over a range of wave-lengths, the feed-line is of fixed length whilst the length of the aerial A is adjusted so as to maintain a constant ratio of aerial length to wave-length, and so that the radiation-resistance is always equal to the surge impedance of the feeder. The feeder preferably consists of two concentric tubes having a surge impedance of 35 ohms for a quarter-wave aerial, Fig. 1, and 70 ohms for a half-wave aerial, Fig. 2. In the latter case the feeder may comprise two conductors spaced slightly apart, or two concentric cables with the outer coverings connected together and earthed.
Patent GB-1469135-A (GB)
Title: Alkenals and process for producing alkenals
IPC: A23L27/20
Filed: 1974-07-19
Abstract: 1469135 Unsaturated aldehydes INTERNATIONAL FLAVORS & FRAGRANCES Inc 19 July 1974 [30 July 1973 (2)] 32083/74 Heading C2C [Also in Divisions A2 and A5] The invention comprises 2-alkylidene-3-alkenals of formula wherein one of R 1  and R 2  is H and the other is CH 3  and one of R 3  and R 4  is H and the other is C 2 - or C 4 -alkyl and a method of preparing compounds of the above Formula I in which R 1  is C 1-4  alkyl, R 2  is H and one of R 3  and R 4  is C 1-4  alkyl and the other is H, which comprises the steps of (1) reacting an aliphatic alpha-betaunsaturated aldehyde with a halogen to provide the corresponding alpha-halo alkenal where X is halogen; either (i) reacting the said alpha-halo alkenal with an alkyl magnesium halide Grignard reagent, hydrolysing the resulting product to form a hydroxyhaloalkene, and dehydrating the resulting hydroxyhaloalkene to form an alkylidene trans-alkene halide or (ii) reacting the said alpha-halo aldehyde derivative with a tri-substituted alkylidene phosphorane or an alkylidene phosphorus triamide to provide a mixture of alkylidene cis-alkene halide and alkylidene trans-alkene halide; (3) either (i) treating either the mixture of said alkylidene alkene halide isomers or said alkylidene trans-alkene halide with a metal such as magnesium thereby forming an organo-metallic compound where M is MgX and reacting the said organometallic compound so formed with a trialkyl orthoformate (to yield an acetal which is then hydrolysed with acid to yield the desired alkylidene-trans-alkenal or (ii) reacting the mixture of alkylidene alkene halide isomers with an alkyl alkali metal to form a second organometallic reagent (mixture of isomers) of the above formula where M is Li, Na or K and then reacting said organo-metallic reagent with a dialkyl formamide followed by acid hydrolysis forming a mixture of 2-alkylidene-3-cis-alkenal and alkylidene-3-trans-alkenal or (iii) physically separating the alkylidene cis-alkene halide from the alkylidene trans-alkene halide and then reacting each isomer independently with an alkyl alkali metal to form a second organo-metallic reagent and then reacting each of said second organo-metallic reagents with a dialkyl formamide, followed by acid hydrolysis forming, separately, an alkylidene-trans-alkenal and an alkylidene-cis-alkenal, where M is MgX, Li, Na or K and X is halogen. 2-Alkylidene-3-alkenals of the above Formula I, including 2-ciscompounds in R 2  is C 1-4  alkyl and R 1  is H may also be prepared by the processes of Specification 1,468,073. Trans - 2 - ethylidene - cis - 3 - hexenal is also obtained from concentrated orange juice by extraction with ether followed by gas-liquid chromatography. Intermediate compounds isolated in examples of the above-described process are α-chloro- and α - bromo - crotonaldehyde, 3 - chloro - 4 - hydroxy- 2-heptene, 3-bromo- and 3-chloro-2,4-heptadiene. The alkylidene-alkenals are used to modify organoleptic properties, e.g. in foodstuffs, beverages, tobacco and perfumes.
Patent GB-365652-A (GB)
Title: Improvements in or relating to cleaning devices for yarn or the like
IPC: B65H63/06
Filed: 1930-10-25
Abstract: 365,652. Stop - motions and clearing apparatus in yarn winding - machines. WADE, H., 111, Hatton Garden, London. - (Universal Winding Co.; 95, South Street, Boston, U.S.A.) Oct.25, 1930, No. 32132. [Class 120 (ii).] A yarn clearer comprises a fixed and a movable clearing member, each having two faces disposed at an angle to one another so that the yarn is drawn across all four faces, the movable member being arranged to enlarge the throughway for the yarn on passage of a slub, and adapted to operate a stop motion. The clearer is mounted on a support 41, 44 having two ears 46, 47, the ear 46 being formed with an extension 48, the end 49 of which is bent back to an angle of 45‹ with itself. Attached to the angular branch 49 by means of a bolt 57 is the fixed clearing member 51, 62, the upper portion 63 of which is bent at rightangles to the lower portion 62. The securing bolt 57 has an eccentric portion 55 which rotates in a vertical slot in the plate 51, so that the latter may be laterally displaced on the support 49 when the bolt 57 is turned by means of a key which fits the hexagonal recess in the bolt head. The member 51 is prevented from twisting by having its edges turned over at 52 to embrace the edges of the support 49. The movable clearing member 65 is pivoted in the ears 46, 47 so that its outer edge just clears the plate 62 and is provided with a parallel extension 70 whose edge 71 just clears the plate 64. The yarn y passes over the faces 62, 64 of the fixed clearing member, and the edges of the movable clearing member 65, 70. Passage of a slub causes the plate 65 to swing upwards and to enlarge the throughway for the yarn y, the arm 72 of the member 65 is thereby swung clear of the end of the pivoted bracket 75, whereupon the weight 80 drops and actuates the usual stop motion of the machine. When the wire 81 drops, the arm 21 swings into contact with a rotating toothed wheel 23, whereupon the latter causes the quadrant 15 to rotate and so release the detent 12, 13 and stop the machine in the usual manner. The yarn y passes between the tensioning plates 25, under the stop wire 20, whereby yarn breakage stops the machine, through the yarn clearer, over the guide-pulley 35 and guiderod 36 to the package being wound.
Patent GB-193181-A (GB)
Title: Improvements in automatic locks for railway carriage doors
IPC: E05B65/42
Filed: 1921-12-01
Abstract: 193,181. Smith, H. F. Dec. 1, 1921. Railway - carriage doors, fastening automatically; sliding bolts.-A bolt 9, or a locking- bar with projections for several doors, is mounted longitudinally of the railway carriage and is released or shot on the depression of a sliding member 5 acted on by an L-shaped lever 3 contacting a projection on the rail track as the trains enters or leaves a station. As the sliding member 5 descends the free end 7 of a lever 6 pivoted thereto, is directed against a projection 8 on the bolt by the sloping surface 13 on a plate carried with the bolt, and thus pushes back the bolt. A spring, not shown, returns the sliding member to its position before descent. On the next descent of the sliding member, the free end 7 will contact the surface 10 and be directed against the other projection 8 to shoot the bolt. Should the bolt be not fully shot or released a projection 17 on the sliding member will contact one side of a V- shaped portion 16 on the bolt and complete the movement. A V-shaped guide 14 moves the lever 6 to central position after each stroke.
Patent GB-1020607-A (GB)
Title: Improved fuel cell and process of exhausting waste reaction products therefrom
IPC: H01M8/06
Filed: 1964-08-07
Abstract: 1,020,607. Fuel cells. ALLIS-CHALMERS MANUFACTURING CO. Aug. 7, 1964 [Aug. 9, 1963], No. 32208/64. Heading H1B. Excess water produced in an H 2 /O 2  fuel cell is evacuated through a permeable membrane impregnated with a solute and solvent so chosen that it has a lower partial pressure of water than the electrolyte and from the latter therefore water migrates into the membrane. Water is removed from the other face of the membrane by evaporation (thus cooling the cell) into a space in which the partial pressure of water is kept still lower than that in the membrane. A cell is disclosed.
Patent GB-1237273-A (GB)
Title: Respiratory ventilation machine
Inventor: MANLEY ROGER EDWARD WENTWORTH
IPC: A61M16/00
Filed: 1968-07-05
Abstract: 1,237,273. Artificial respiration. BLEASE MEDICAL EQUIPMENT Ltd. 5 July, 1968, No. 32259/68. Heading A5T. A ventilation machine comprises a variable volume chamber 10 adapted to be connected to a face mask 84 and to be contracted to force gas to the user by pressure of gas within a variable volume control chamber 16, inhalation and exhalation tubes 82, 86, and an over-centre toggle mechanism 28, 40 responsive to the control chamber volume and arranged to actuate a first valve 34 which can allow gas into the control chamber, there being a second valve 50 which can be actuated to allow exit of gas from the control chamber and there being a venturi arrangement 92 connected to the exhalation tube for assisting exhalation. As shown, in the inspiration phase, gas is supplied from a pump to an inlet 64 and from thence through conduits 68, 72 to the first valve 34, which is open, and into the control chamber. The gas also passes through conduits 66, 102, 106 to venturi nozzles 94, 96 and through conduits 68, 74 to an expansible valve operating chamber 60. During inspiration driving gas flows into the control chamber 16 through the valve 34 and by compressing the chamber 10 drives breathing gas (air, oxygen, or an anaesthetic mixture) to the user. After a period determined by the setting of a bleed valve 20 a diaphragm 18 moves against a spring 24 and the pressure in a chamber 22 to actuate the over-centre toggle mechanism through a rod 44 and to close the valve 34. The driving gas is then able to expand the chamber 60 causing the second valve 50 to open and allow the exit of gas from the chamber, the chamber 10 then expanding and drawing in breathing gas from a source 89 while the user exhales into a duct 86 through a filter 89 and the double venturi 92 into the control chamber. Exhalation may be assisted or limited by the adjustment of a tap 104 which by controlling the operation of the venturi nozzles 94, 96 provides a positive or negative pressure in the exhalation ducts. The duration of the expiratory phase is determined by the setting of a bleed valve 30 to the chamber 22 and the machine reverts to inspiration when pressure in the control chamber 16 has fallen such that the diphragm, moved by the spring 24, actuates the overcentre mechanism to open the valve 34. The inspiratory pressure may be controlled by adjusting the compression in the spring 24.