baber/WOPTO huggingface dataset:
Patent GB-705571-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F28F9/22
Filed: 1950-05-02
Abstract: 705,571. Tubular heat exchangers. STANDARD-THOMSON CORPORATION. May 2, 1950. [May 18, 1949], No. 10778/50. Class 64(3) Relates to heat-exchangers particularly for heat-exchange between lubricating oil and fuel in turbo-jet aircraft, having a shell made in sections (e.g. 14, 16, 18) with internal walls dividing each section into a plurality of connected cells each containing a bundle of tubes 6, Fig. 3, through which a fluid is directed to exchange heat with another fluid flowing through the shell and over the tubes. According to the invention each shell section is provided with flanges 19 whereby adjacent sections may be welded together with their cells. in parallel alignment. Preferably each bundle of tubes extends between tube plates 24 and is provided with baffles 28 to guide a fluid to cooled (e.g. lubricating oil) in a sinuous path over the tubes from an inlet 34 to an outlet 35 by way of ports 33 interconnecting adjacent cells. Fuel to be heated flows from an inlet 40, through each tube bundle in series or as shown through a series of parallel pairs of tube bundles to an outlet 42. The cells are closed at theid ends by individual caps 44 or .alternatively by end closure plates common to all cells. The arcuate arrangement of Fig. 1 is preferably used when the heat exchanger surrounds the jet engine or other equipment. When used for cooling oil the usual thermostatic flow control valve 45 is provided whereby oil by-passes the heat exchanger when its temperature falls below a predetermined value.
Patent GB-1460968-A (GB)
Title: Process for the preparation of transition metal complex catalysts
IPC: C07C2/34
Filed: 1974-03-12
Abstract: 1460968 Transition metal complexes TOKYO INSTITUTE OF TECHNOLOGY PRESIDENT OF 12 March 1974 [13 Sept 1973] 10933/74 Heading C3P [Also in Division C5] Transition metal complexes suitable for use as polymerization catalysts are prepared by mixing in an organic solvent (1) a chloro-, bromo- or iodo-polystyrene and (2) a complex of a transition metal in zero oxidation state. The complex may be tetrakis (triphenyl phosphine) nickel, palladium or platinium; or diethyl dipyridyl nickel. The solvent may be benzene, toluene or n-hexane. Examples describe the preparation of catalysts by reacting brominated polystyrene with (1) tetrakis (triphenyl phosphine) nickel; iodinated polystyrene with (2, 4 and 5) tetrakis (triphenyl phosphine) nickel, palladium or platinum; and diethyl dipyridyl nickel with (3) chlorinated polystyrene and (6) p-chlorostyrene/divinyl benzene copolymer.
Patent GB-652890-A (GB)
Title: Improvements in and relating to the purification of silica sand
IPC: C03C1/02
Filed: 1948-04-21
Abstract: Silica sand is subjected to treatment with concentrated sulphuric acid at 100-150 DEG  C. such treatment being preceded or followed by froth flotation.ALSO:Silica sand is subjected to treatment with concentrated sulphuric acid at 100 DEG -150 DEG C., such treatment being preceded or followed by froth flotation.
Patent GB-697354-A (GB)
Title: A measuring device for checking the efficiency of cereal product, or like, mills in which the materials for processing are carried by pneumatic elevators
Inventor: HUNTER STANLEY GODWIN
IPC: G07C3/00
Filed: 1951-05-11
Abstract: 697,354. Pneumatic elevators. SIMON, Ltd., H. March 31, 1952. [May 11, 1951] No. 11118/51. Class 78 (i). In order that an instantaneous indication of the pressure in any one of a group of elevating trunks in a mill may be given on a single indicator, each trunk 1 is tapped, preferably between the cyclone 2 and its elevating air control valve 3, by a small pipe 8 which leads to one of a series of electromagnetically operated air valves 9 controlled by a selector switch 17, preferably of the push button type, and from thence by way of a manifold 10 connected with the outlet sides of all the valves to a pressure measuring and indicating instrument which may be of the kind described in Specification 689,747, [Group XXXVIII]. An electromagnetically-controlled valve 11 actuated by a kev 18 and connected to the manifold 10 is open at the other side to the atmosphere and is used to restore atmospheric pressure after an observation has been made. When the key 18 is pressed, a circuit is completed through the contacts 17a and the valves 9 are opened and air drawn through them and the pipe 8 to clear them.
Patent GB-1464705-A (GB)
Title: Stationary gas turbine plant
IPC: F02C6/00
Filed: 1975-03-18
Abstract: 1464705 Gas turbine driven power planthousing BROWN BOVERI-SULZER TURBOMASCHINEN AG 18 March 1975 [9 April 1974] 11155/75 Heading F1G The invention relates to the housing of a gas turbine driven power plant, the driven machine of the assembly being housed within a structure which defines an annular air inlet duct leading to the compressor intake. The plant shown is an electric generating set and comprises a gas turbine plant 3 comprising an air compressor 11, combustion equipment 15 and a turbine 12, the turbine driving through shaft 19 an electric generator 13. The  turbine plant is mounted in a housing 1 and is supported on a foundation 5 by means of supports 16; a travelling crane mounted in the housing 1 is indicated at 6. The generator 13 is mounted on a foundation 32 supported from the foundation 5 by means of struts 35, Fig. 3. The generator is contained within a housing 4 of generally square section which is shaped so as to define an annular, square-section duct 24 which constitutes an air inlet duct to the compressor 1. Air enters a structure 4' through filter 29 passing through opening 27 into the annular duct 24; structure 4' is closed at the upper surface. The inflow of air is indicated by arrows L. An annular passage 25 of frustoconical form extends from the annular duct 24 to the intake face of the compressor 11. Silencing baffles 34 are disposed in the duct 24. The turbine exhaust gases discharge through diffuser 16' and duct 18 into the exhaust stack 2 which comprises an inner lining 7 and an outer casing 8 which define a sapce 9 therebetween.
Patent GB-766569-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
Inventor: YOUNG ARTHUR
IPC: H03F3/40
Filed: 1954-04-15
Abstract: 766,569. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 8, 1955 [April 15, 1954], No. 11205/54. Class 40(6) A direct-current amplifying system provided with means for stabilizing the D.C. output level comprises a main amplifier 1, a similar auxiliary amplifier 2 and an output amplifier 5 which is coupled to the main amplifier 1 over a condenser 9. The auxiliary amplifier 2 is also coupled to the output amplifier 5, over a condenser 6 and combining network 4. At periodic intervals the input of the auxiliary amplifier 2 is disconnected from the input terminal and connected to earth, by means of an interrupter 3. During these periods the condenser 6 is also connected to earth, by a further interrupter 7, and disconnected from the combining network 4 for a longer, overlapping period by means of a third interrupter 8. The output amplifier 5 may comprise a cathode-follower. A suitable combining network 4 is illustrated in the Figures (Fig. 2, not shown). Reference has been directed by the Comptroller to Specification 754,945.
Patent GB-787725-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/39
Filed: 1956-04-13
Abstract: 787,725. Filters. SEITZ, E. LIEGEL-, SEITZ, R. LIEGEL-, SEITZ, H., SEITZ, G., LIEBLER, E., LIEBLER, H., SEITZ, I., and SPENGLER, H. April 13, 1956 [April 16, 1955], No. 11268/56. Class 46. A filter, adapted to the form of filter plate 10, comprises a plurality of sheets 13, separable one from another, arranged about a supporting layer 11 and fixed to it at their lower ends. The sediment and filtering aid is deposited on the outside sheet and on completion of the filtration the outer sheet is torn through its upper edge, by means of tear-off flaps provided, thus allowing the next sheet to receive the new charge. The sheets 13 are preferably made of wet resistant and boiling resistant cellular artificial wool fibres and the supporting layer 11 of cardboard or pulp-like material. The filter plate 10 may be constructed as a hollow chamber.
Patent GB-270310-A (GB)
Title: Improvements in ploughs
IPC: A01B13/14
Filed: 1927-04-27
Abstract: 270,310. Schwarzlose, W., Schwarzlose, M., and Schwarzlose, C. April 27, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Tools. - In a singlebody two-layer plough curved tines or cutters having a drawing cut are fastened at a distance apart on a wide concave share or its holder to cut up the lower part of the furrow slice and spread it on the bottom of the furrow. The tines c are curved forwardly and laterally and are arranged in the path of the rising furrow slice in step-like relationship. They are of oblique angled triangular section and their wide faces are arranged obliquely towards the rear. The uppermost tine h has no cutting action but has its wide face forward to guide the upper part of the furrow slice. The share and tines are arranged in such a way as to leave a clear narrow path in the furrow for the wheel of the plough. Steps or notches f may be provided on the tines, and the cutting- tines c may have renewable blades k. The share a may be made in two parts so that the outer end may be replaced. The tines c are pivoted on bolts d and held in place by bolts e having eccentric parts for adjustment purposes.
Patent GB-863029-A (GB)
Title: Improvements in or relating to arrangements of the kind which includes an electricalposition-encoder for providing electric signals that are representative in digital form of the angular position of a rotatable shaft
Inventor: MUZLISH PHILIP
IPC: H03M1/00
Filed: 1958-04-02
Abstract: 863,029. Electric selective signalling systems. GENERAL ELECTRIC CO. Ltd. April 2, 1959 [April 2, 1958], No. 11312/58. Class 40 (1). [Also in Group XXIV] A position encoder 20 of the type described in Specification 863,027, which provides electric signals representative of the angular position of its shaft 10 is utilized to indicate the angular position of a shaft 2 coupled thereto by a Geneva mechanism 6, 7 (see Group XXIV), providing a step-by-step movement of shaft 10 relative to shaft 2. As shown, the driving- member 6 of the Geneva mechanism is driven through gears 1, 3 from shaft 2 whilst the driven member 7 is coupled by gears 8, 9 to the shaft 10, the shaft 2 performing sixteen revolutions to one of the shaft 10. Thus each of the 32 digital positions of shaft 10 corresponds to ¢-revolution of shaft 2 and encoder 20 provides signals representative of the position of shaft 2 over sixteen revolutions to a ¢-revolution thereof. The shaft 2 may be provided with a second encoder 19 which gives signals representative of the angular position of the shaft within each ¢-revolution so that the combination of the signals from both encoders gives an indication of the position of shaft 2 to <SP>1</SP>/ 16  of a revolution in sixteen complete revolutions.
Patent GB-142130-A (GB)
Title: Improvements in ships' portholes, scuttles and the like
IPC: B63B19/00
Filed: 1920-04-23
Abstract: 142,130. Soc. Anon. des Ateliers et Chantiers de la Loire, and Laupretre, C. Jan. 23, 1919, [Convention date]. Cabin and decklights.-In a device for fastening and tightening the glass-holders and dead-lights of ships' portholes, a disk c is secured to the fixed frame a carrying a packing-ring d, and is provided with an internal screw-threads en two opposite quadrants c<1>, the remaining quadrants c<2> being recessed and plain. The glass-holder b, which is provided with similar screw-threaded and plain quadrants b<1>, b<2>, may this be inserted into contact with the packing-ring d and tightened against the same by engaging the screw-threads and giving a partial turn to the glass-holder. The deadlight e is secured in a similar fashion to the glassholder. When the glass-holder is disengaged from the disk c, trunnions b<3> on the holder are in alinement with slots c<4> in upstarting lugs c<5>. This arrangement permits the distance of the glass-holder from its seating to be adjusted, and it may be secured at an inclination by means of a tightening-screw b<4>. In the modification shown in Fig. 6, the guide for the trunnions is extended as shown at g<1>, thus allowing the glass-holder to be slid laterally to leave the porthole entirely open.
Patent GB-868546-A (GB)
Title: Improvements in or relating to multi-speed driving mechanisms
IPC: F16H3/06
Filed: 1958-04-10
Abstract: 868,546. Change-speed gear. TELEFUNKEN G.m.b.H. April 10, 1958 [April 16, 1957], No. 11387/58. Class 80 (2). A worm gear 9 fast on the driving spindle 12 of an electric motor 11 is engaged either, as shown, with worm wheel teeth 4 2  on a wormwheel 4 or, by tilting the motor about pivots 16, with worm-wheel teeth 4 1  to give a lower ratio, the worm-wheel driving through a resilient coupling 8 and a one-way helical coil spring clutch 7 to a shaft 3 driving magnetic tape recording and/or reproducing apparatus. More than two rows of teeth 4 1  &c. may be provided.
Patent GB-695664-A (GB)
Title: Improvements in or relating to polarized electromagnetic devices
IPC: H01H51/22
Filed: 1951-05-16
Abstract: 695,664. Electromagnets. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. May 16, 1951, No. 11404/51. Class 35. [Also in Group XXXVII] A polarized relay has an H-shaped armature system comprising two parallel armatures 6 united by a non. magnetic cross-member 8 and rotatable about a central axis 7, the armatures 6 embracing the poles 4 of an electromagnetic system and being embraced by the poles 2 of a permanent magnet system. The electromagnetic system and the permanent magnet system may each comprise two magnets 3 or 1 joined at the bottom by a magnetic member 10 or 9 and the arrangement is such that the poles 2 are of opposite polarity. The poles 4 are also of opposite polarity, the particular polarity depending on the direction of the current in the windings 3, 5 and urging the armature system, which carries contacts, in one direction or the other. In a practical embodiment, Figs. 2, 3 (not shown), the member 8 is mounted on two slotted blade-springs arranged with their planes perpendicular to each other and intersecting at a line which is the longitudinal axis of each blade. The upper ends of the blade engage slots in the member 8 and the lower ends are fixed to a hub which is fixed to a base-plate so as to bias the armatures to a central position or to a side position, according to requirements. Specification 629,073, (Group XXXVII], is referred to.
Patent GB-769632-A (GB)
Title: Improvements in or relating to siloxanes
IPC: C07F7/08
Filed: 1955-04-20
Abstract: Organosiloxanes useful as sun-screening agents, anti-oxidants, lubricants and as additives for increasing the lubricating power of polysiloxanes, and having the average general formula <FORM:0769632/IV(a)/1> wherein R is a polyvalent hydrocarbon radical, each R1 is a monovalent hydrocarbon radical, n has a value from 1 to 2 inclusive and x is at least 1, may be made by reacting a metal salt, preferably an alkali metal salt, of a hydroxy acid with a halomethyl siloxane of the average general formula <FORM:0769632/IV(a)/2> Preferably the reaction is effected by heating the reactants under acidic conditions, and, if desired, in a neutral solvent such as dimethylformamide.  Upon completion of the reaction the metal chloride formed and solvent are removed.  Acids specified are glycollic, lactic, b -hydroxy butyric, g -hydroxytutyric, 12-hydroxystearic, salicylic, gallic, mendelic, protocatechuic, parahydroxy cinnamic, 3.4 - dihydroxycinnamic, 5 - hydroxynaphthoic, 2.3-dihydroxy - 4 - methyl toluic and quinic acids.  The R1 siloxane radical may be methyl, ethyl, octadecyl, vinyl, allyl, hexenyl, cyclohexyl cyclohexenyl, cyclopentyl, phenyl, naphthyl, xenyl, tolyl or benzyl.  The siloxanes may be co-polymerized with from 0.1 to 99.99 mol. per cent of siloxanes of the average general formlua <FORM:0769632/IV(a)/3> wherein each R11 is a monovalent hydrocarbon or halogenated hydrocarbon radical and m has a value from 1 to 3.  In examples (1) sodium salicylate, bis - chloromethyltetramethyl - disiloxane and dimethylformamide were refluxed with subsequent removal of solvent and precitated NaCl to yield the crystalline compound <FORM:0769632/IV(a)/4> (2) the product of (1) was copolymerized with octamethylcyclotetrasiloxane in the presence of conc. H2SO4 to yield a liquid mixture of polymers of the formula <FORM:0769632/IV(a)/5> (3) sodium glycollate and bis-chloromethyltetramethyldisiloxane in solution in aqueous glycollic acid and dimethylformamide were refluxed, with subsequent removal of NaCl and solvent to yield a liquid of the formula <FORM:0769632/IV(a)/6> in a similar manner; (4) bis-chloromethyltetramethyldisoloxane and potassium lactate yielded <FORM:0769632/IV(a)/7> (5) bis-chloromethyltetramethyldisiloxane, 12-hydroxystearic acid and the sodium salt thereof yielded <FORM:0769632/IV(a)/8> (6) chloromethylheptamethylcyclotetrasiloxane, glycollic acid and sodium glycollate yielded <FORM:0769632/IV(a)/9> (7) gallic acid and bis-chloromethyltetramethyldisiloxane yielded <FORM:0769632/IV(a)/100> (8) [Cl.CH2.(C6H5)2Si]2O and <FORM:0769632/IV(a)/111> yielded <FORM:0769632/IV(a)/122> the siloxane of (6) was copolymerized with chlorophenylmethylsiloxane and monovinylsiloxane.
Patent GB-241817-A (GB)
Title: Catalytic apparatus for the synthesis of ammonia
IPC: B01J8/00
Filed: 1925-05-04
Abstract: 241,817. Synthetic Ammonia & Nitrates, Ltd., and Bramwell, F. H. May 4, 1925. Catalytic apparatus; ammonia, catalytic production of from nitrogen and hydrogen.-The catalytic chamber A of an ammonia-synthesis apparatus is surrounded by a heatexchanger comprising concentric tubes D, E, the hot gases from the chamber traversing the inner tube E and the cold incoming gases flowing through the annular space between the tubes. Specification 229,354 is referred to.
Patent GB-547643-A (GB)
Title: Novel or improved bar for detachably suspending medals from uniforms and other garments
IPC: A44C3/00
Filed: 1941-11-05
Abstract: 547,643. Medal ribbons &c. MOORE, A. Nov. 5, 1941, No. 11519. [Class 43] A carrier for detachably suspending a medal or medals from a garment comprises a metal &c. plate A having one or more integral hoops B, C from which the medal or medals may be suspended, and a safety pin F or other fastener on its reverse side. The colours of the medal ribbons are depicted on the face H of the carrier, which may also be provided with slots G through which the actual medal ribobns may be threaded and then sewn:
Patent GB-502643-A (GB)
Title: Improvements in packing material for sealing joints or moving parts of machinery
IPC: F16J15/22
Filed: 1938-04-14
Abstract: 502,643. Stuffing-box packing; jointmaking packing ; compound sheet materials. UNITED STATES RUBBER PRODUCTS, Inc. April 14; 1938, No. 11562. Convention date, April 29, 1937. [Classes 122 (iii) and 122 (v)] [Also in Group VIII] Packing for joints, pumps, &c. comprises as a major constituent, yarn made from twisted glass fibres, The yarn may be impregnated with lubricant and braided into strip form. Alternatively woven glass yarn 7 may be layered with bonding composition 9 such as synthetic rubber or rubber composition.
Patent GB-760358-A (GB)
Title: Improvements in or relating to electric protective arrangements
IPC: H02H3/34
Filed: 1954-04-22
Abstract: 760,358. Protective cut-out arrangements. GENERAL ELECTRIC CO., Ltd., and FITZPATRICK, J. A. April 22, 1955 [April 22, 1954], No. 11689/54. Class 38(5) A protective arrangement which may be used to protect a three-phase generator 1 from unbalanced conditions comprises a relay having heat responsive means 3 arranged to be heated by the output from a negative phase sequence network 2. The network 2 may be supplied from current transformers 5 and may supply the means 3 directly or through a saturable current transformer 4. The relay shown comprises a U-shaped bimetallic element 3 supplied from the transformer 4 and a further U- shaped bimetallic element 9 for ambient temperature compensation. The elements 3, 9 carry contacts 7, 8 which when closed due to unbalanced conditions cause the tripping of a circuit-breaker and/or the giving of an indication.
Patent GB-610786-A (GB)
Title: Steam turbines
IPC: F01D15/00
Filed: 1946-04-16
Abstract: 610,786. Steam turbines. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. April 16, 1946, No. 11702. Convention date, Feb. 13, 1943. Drawings to Specification. [Class 110 (iii)] Low-pressure steam turbines, operating in the temperature drop between the surface and deep waters in tropical seas, have several tiers of blades each tier receiving steam from one of an equal number of evaporators and exhausting to one of an equal number of condensers. A single evaporator may supply steam to all the tiers of blades which exhaust to separate condensers. The turbine blades may be of different axial extent at the several tiers or a similar result may be obtained by a continuous variation.
Patent GB-304534-A (GB)
Title: Improvements in conveying and distributing or sorting systems
IPC: B07C3/04
Filed: 1928-04-21
Abstract: 304,534. Mix & Genest Akt.-Ges., and Beckmann, C. April 21, 1928. Letters and the like, systems of transmitting and delivering.-Means for sorting letters and automatically distributing them to conveyer means, such as conveyer bands, comprise a central table 9 holding the letter to be sorted by operators who stand inside the foundation 4 and allot the letters to slideways a formed with raised end flaps b. The slide ways a are carried on a distributor 2 mounted on rollers 3 and formed with a rack 5 which meshes with a driving pinion 7. Each slideway a is adapted to feed its own conveyer band 1, the flaps b, which rest on rollers c on a track d, being opened by the track d when the slideway a is opposite its conveyer band 1. The letters then slide into a fixed slideway 8 and on to the conveyer band 1. Each conveyer band 1 may have two or more slideways a arranged at the same, or different, levels. In the modified construction shown in Figs. 3, 4, and 5 the track d, forming a controlling cam for the rollers c on the flap b, is rotatably mounted on cross-cams 9 running with rollers e on a track f. The arms 9 carry plates g with pusher fingers h projecting into a trough 10. Slideways 8, extending over the conveyer bands 1, are secured to the trough 10, and access to each is controlled by a flap i actuated by the control track 11, Fig. 4, through a roller k. The tracks 11 are secured to the arms 9, and are formed with bends m to move the flap i. In operation, letters are allotted to a slideway a, the track d opens a flap b so that the letters descend into a trough 10 and are moved by the fingers h on to the flap i of the slideway 8 corresponding to the conveyer band 1. The bend m in the track 11 then engages the roller k to rotate the flap i so that the letters go down the slideway 8 to the band 1. Figs. 6 and 7 illustrate an arrangement in which the flaps b, i are omitted, each slideway a being arranged to discharge into a trough 10 associated with it alone. The slideways a of a fixed distributor 2 extend in groups of four over each of four concentric stationary troughs 10. The slideways 8 each extend Àover one of four conveyer bands 1, and each communicate directly with one of the troughs 10. The rotary cross-arm 9 carries the pusher fingers h corresponding to each trough 10. A driving cord 12 is arranged around the cross-arms 9. A letter is allotted to the slideway a which discharges into the trough corresponding to the particular band 1, and slides into the trough, being carried along by the fingers h until it falls into the appropriate slideway 8 and on to the conveyer band 1.