baber/WOPTO huggingface dataset:
Patent GB-1381531-A (GB)
Title: Method of and apparatus for improving the linearity of the current transformation of a dc measuring transductor
IPC: G01R19/20
Filed: 1972-06-19
Abstract: 1381531 Automatic regulation SMIT NIJMEGEN ELECTROTECHNISCHE FABRIEKEN N V 19 June 1972 [17 June 1971] 28630/72 Heading G3X [Also in Division H3] To regulate core flux variations in a direct current transformer 10', Fig.2 to a constant value, to improve linearity, a feedback voltage controls the A.C. voltage source 20' energizing the A.C. winding 13 of the transformer core 11. As shown the feedback voltage is derived from an auxiliary core winding 15, and is applied to the voltage source through a comparator 60 connected to a reference voltage source 70. An integrator 50 is included in the feedback circuit if the voltage source 20' is liable to frequency fluctuation. In a modification, Fig.3, the feedback voltage is derived directly from the A.C. winding 13 by comparison at 60' of the voltages at each end of the winding. The A.C. winding current is applied through a load 30 after rectification at 14 and a continuous bias current through the load from a D.C. source 40 compensates for the transformer magnetizing current.
Patent GB-658202-A (GB)
Title: New pyrimidine derivatives
Filed: 1948-11-05
Abstract: Quaternary salts of 2-, 4-, or 6-lower alkylaminopyrimidine substituted in a further 2-, 4-, or 6-position by a halogen atom or by the group -SR, where R is a hydrocarbon radicle, and which may be substituted in the remaining 2-, 4-, or 6-position by a lower alkyl group, a primary amino-group or a lower alkylamino-group are obtained by heating the above pyrimidine compounds with alkyl halides, sulphates and sodium iodide, and alkyl-aryl sulphonates followed by sodium iodide in presence of a solvent.  Generally the quarternary salt of one of the ring N-atoms predominates, both being formed; they may also be regarded as salts of an imino-dihydro-pyrimidine.  In examples, pyrimidine compounds substituted in the 2-position by methylamino, ethylamino, amino, n-butylamino, isopropylamino, and methylthio-, in 4-position by chlorine, bromine, methylamine, benzyl-, thio-, n-butylamino, and methylthio; and in 6-positions by methyl-, ethyl-, amino-, and methylamino, are converted into the quaternary 1- or 3-methiodide, or methyl sulphate.  When the quaternary salt-forming agent contains a halogen different from the halogen substituent in the pyrimidine nucleus, complete or partial replacement of the nucleus halogen by the other may take place, as in example 1.  The quarternary salts of 2-methylamino-, 4-chlor 4-thioalkyl-, 6-methyl-, 6-amino-, or 6-methylamino pyrimidines are especially useful in the manufacture of trypanocidal agents. Specification 658,203 is referred to.
Patent GB-903648-A (GB)
Title: Alpha-olefin polymers
IPC: C08F2/00
Filed: 1960-01-11
Abstract: Olefin polymers having optical activity in solution are prepared by polymerizing a racemic alpha olefin of formula CH2=CHR in which R is a branched alkyl group of 4 to 8 carbon atoms containing at least one asymmetric carbon atom or an alkaryl group in which alkaryl group the alkyl group is one of 4 to 8 carbon atoms containing at least one asymmetric carbon atom, in the presence of a catalyst formed b contacting a compound of a metal of Group IVa, Va or VIa of the Mendel<\>aeeff Periodic Table with a dextro or laevo organometallic compound, or etherate thereof, of formula MeR1n where Me is a metal of Group I, II or III, n is the valency of the metal and R1 is a hydrocarbon radical containing at least one asymmetric carbon atom. Specified olefins are 3-methyl-pentene-1, 4-methyl-hexene-1, 3-phenyl-pentene-1 and 5-methyl-heptene-1. Specified catalyst components are titanium trichloride and titanium tetrachloride, and organo compounds containing 2-methyl-n-butyl, 3-methyl-n-pentyl, 3-phenyl-n-pentyl and 4-methyl-n-hexyl groups, e.g. (+)-tris-[(S)-2-methyl-butyl] aluminium and its etherate. Polymerization may be effected in the presence of liquid media, e.g. petroleum ether, and the product purified by treatment with methanol and hydrochloric acid. The products may be fractionated by extraction with acetone, ether and benzene.ALSO:(+) (S)-1-chloro-2-methyl-butane may be prepared by reacting (-) (S)-2-methyl-butanol with thionyl chloride.  Optically active organometallic compounds may be prepared by reacting (+)(S)-1-chloro-2-methyl butane with magnesium in ether, and reacting the Grignard reagents formed with anhydrous metal chlorides.  An example describes the preparation of (1) (+)tris-[(S)-2-methyl - butyl] aluminium using aluminium trichloride.
Patent GB-1010545-A (GB)
Title: Improvements in or relating to christmas and like crackers
IPC: A63H37/00
Filed: 1963-07-20
Abstract: 1,010,545. Bon-bon crackers. W. J. WORTHINGTON. Oct 20, 1964 [July 20, 1963], No. 28802/63. Heading A6S. A Christmas cracker comprises a tubular body provided with a removable closure, the explosive strip being secured to or wedged between said parts, and the body and closure being so designed that after removal of articles therein the closure may be replaced to restore the cracker to its initial condition. In one embodiment, the cracker is designed to simulate a candle, which may be stood up on a cross member 3 with feet 4 concealed by a fringe 5. The closure may have a part 8 simulating aflame by means of which the closure is pulled off. The explosive strip 2 lays along the wall of the cracker. The closure member may include a battery 15 and lamp 14, the closure having a projecting rim 12 to aid withdrawal. The cracker may be designed as a rocket 17, Fig. 4.
Patent GB-519863-A (GB)
Title: Improvements relating to electric cables
IPC: H02G15/26
Filed: 1938-10-05
Abstract: 519,863. Electric cables. SIEMENS BROS. & CO., Ltd., RIEDL, J., and WOOD, H. G. Oct. 5, 1938, Nos. 28863 and 30791. [Class 36] In a cable in which a conductor surrounded with oil impregnated insulation is enclosed in a deformable metallic sheath to which pressure is applied by a fluid, preferably gas, in a space surrounding the sheath, a barrier is secured to the deformable sheath and has a flange extending across the pressure fluid space and clamped to a flange or flanges on the outer sheath enclosing the pressure fluid. A stranded oval conductor, with foil-wrapped insulation, is enclosed in an oval lead sheath which, at a joint in the conductor, is cut away and has an oval metal sleeve 2, wrapped with brass tape 7, wiped thereto, the sleeve 2 being made circular near the joint where a flanged member 4 is secured as by wiping 6 and wire 8. Circular copper tubes 3 are wiped to the outer lead sheath and are connected to flanged members 9, with packing 5, bolted to the member 4. Pipes 13, 14, 15, bye-pass the connection and are connected to a three-way cock 16, or two two-way cocks, and to a fitting 17 adapted for connection to a gas-container or a pressure gauge. In the member 4, a passage 18, controlled by a spring-pressed ball valve 19, is provided to allow sampling of the oil in the inner sheath, or to form an auxiliary oil supply passage.
Patent GB-368253-A (GB)
Title: Improvements in wrapping and packing machines
IPC: B65B59/00
Filed: 1930-09-29
Abstract: 368,253. Wrapping-machines ; variable-speed gearing. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Automat Molding & Folding Co. ; 16, Broadway, Toledo, Ohio, U.S.A.) Sept. 29, 1930, No. 29084. [Class 94 (i).] Relates to packing-machines of the kind in which the articles are advanced through the first part of the machine, for instance, for a preliminary wrapping, by an initial feeding device, and subsequently, after the articles have been grouped into a stack, the stack is moved through another wrapping device by a second feeding device operating at a different speed. According to the invention, which is applicable to machines such as are described in Specifications 256,383, 264,068, and 264,385, [all in Class 94 (i), Packing &c.], means are provided for varying the relative speeds of the feeding devices according to the number of articles that are grouped to form a stack, and the speed of the initial feeding device may be varied according to the ratio between the two speeds. The initial feeding device is driven from a shaft 5, Fig. 2, by chain and sprocket gearing 30, and this shaft is adapted to be clutched to a driven shaft 12, from which the second feeding device is operated, by the engagement of one of a series of gears 6, 7, 8 with one of a series 9, 10, 11. The gears 6, 7, 8 are fast on the shaft 5 and the gears 9, 10, 11 are loose on the shaft 12 unless clutched thereto. A control rod 20, Figs. 5 and 6, passes through the centre of the shaft, and through slots 19 in clutch keys 14 disposed in sockets 13. Cam surfaces 21 are disposed in different angular positions on the rod, so that, on adjusting the rod, one or other of the clutch keys 14 is released to be urged by springs 15 to engage a keyway 18, thus causing rotation of the shaft 12 at the appropriate speed. The rod 20 has a tongue and groove connection with an extension 23 carrying a knob and dial 25 by which it is operated, and which is normally urged towards a disc 26 by a spring 24. A pin 27 is adapted to enter one of three holes 28 to ensure accuracy of adjustment. In order to vary the speed of the shaft 5, if necessary, a driven shaft 12a, similar to the shaft 12, is interposed between the prime mover 5a and the shaft 5.
Patent GB-858690-A (GB)
Title: Process of pelletizing phosphate rock
Inventor: BAUMANN ARTHUR N
IPC: C05B19/00
Filed: 1958-09-11
Abstract: Pellets of phosphate rock, suitable for charging electric or blast phosphorus reduction furnaces, are prepared by mixing the phosphate rock, which may be concentrated by conventional means, water, and at least one alkali metal metaphosphate or polymetaphosphate or mixture thereof as a binder, tumbling the mixture in a rotating pelletiser to produce moist pellets having a particle size of +8 mesh (Tyler) and slowly heating the moist pellets to a temperature in excess of 230 DEG F., preferably 500 DEG F.-1200 DEG F., to remove substantially all of the water from the pellets.  Between 5 and 50 pounds of the metaphosphate are employed per 2000 pounds of phosphate rock, and water is added in an amount sufficient to provide a total moisture content of between 10% and 20% by weight.  Instead of the metaphosphates and polymetaphosphates referred to above, other compounds which form metaphosphates and polymetaphosphates in situ when heated to above 500 DEG F. may be employed.  The temperature is preferably raised to the final temperature at a rate of 10 DEG F.-25 DEG F. per minute.  The phosphate rock particles to be pelleted preferably all pass through a 14 mesh screen, and between 30% and 60% through a 200 mesh screen.  Such a particle distribution may be prepared by mixing a phosphate rock concentrate with phosphate dust. The metaphosphate or polymetaphosphate may be added either as solid or in the form of a solution.  In one form of the invention, the phosphate rock is introduced into an inclined rotating pan pelletiser, and aqueous alkali metal metaphosphate is sprayed on to the rock.  Suitable metaphosphate binders include alkali metal metaphosphates, tri-, tetraand hexa-metaphosphates, especially of sodium and potassium and compounds which form metaphosphates or polymetaphosphates in situ on heating to above 500 DEG F., for example mono and dihydrogen alkali metal phosphates, and tripolyphosphates.  A suitable monosodium phosphate solution may be prepared by dissolving sodium carbonate in phosphoric acid solution. A suitable sodium metaphosphate solution may be obtained by reacting sodium chloride, carbonate or hydroxide with phosphoric acid, heating to about 1700 DEG F. and quenching in water.
Patent GB-903718-A (GB)
Title: Process for the production of basic derivatives of salicylamide which form salts which are easily soluble in water
IPC: C07D277/28
Filed: 1958-09-11
Abstract: The substituted salicylamides of the parent Specification are prepared by reacting salicylic acid azide or salicylamide with a diamine of the formula R1NH.X.NR2R3 (wherein R1 is hydrogen or C1-C4 alkyl, X is alkylene of 2 or 3 carbon atoms and R2 and R3 are C1-C4 alkyl or, together with N, form a saturated heterocyclic ring). Examples are given and salts of the products with organic and inorganic acids are described.  Salicylic acid azide is prepared by treating salicoyl hydrazide in hydrochloric acid with sodium nitrite. The substituted salicylamides, which are stated to have analgetic, antipyretic and antiphlogistic action, may be formulated as pharmaceutical compositions.  Aqueous injection solutions of the salts are described, and tablets, suppositories and syrups are also referred to.
Patent GB-820165-A (GB)
Title: Improvements in flaw-detection and like systems using sonic or ultrasonic waves
Inventor: HALLIDAY WILLIAM
IPC: G01N29/22
Filed: 1955-10-13
Abstract: 820,165. Piezo-electric crystals. KELVIN & HUGHES Ltd. Oct. 11, 1956 [Oct. 13, 1955], No. 29237/55. Drawings to Specification. Class 40 (8). [Also in Group XL (c)] A directional transducer fed from tappings along a delay network in a sonic or ultrasonic flaw - detector or echo - sounder (see Group XXXVIII) comprises a crystal of quartz or barium titanate effectively divided electrically into a plurality of parts all in one plane. The electrodes may be concentric rings, in which case the energy is focused to a point, or parallel strips, in which case a line focus is provided. The rings or strips are obtained by spraying or electroplating conductive material on to one surface of a solid crystal. The other surface of the crystal carries a common uniform electrode.
Patent GB-1308009-A (GB)
Title: Change speed gear train arrangements
IPC: F16H47/08
Filed: 1970-04-21
Abstract: 1308009 Change-speed gear NISSAN MOTOR CO Ltd 21 April 1970 [14 July 1969] 29258/72 Divided out of 1308001 Heading F2D Three sun-ring-planet trains 12, 13, 14, identical or not, controlled by two selective input clutches K1, K2, and three brakes B1, B2, B3, provide three reduced ratios, directdrive and one reverse, and, with the optional addition of a two-element train 45a and clutch K3, one overdrive. Connections are as shown, the additional planets 45a being fast to the planets C3 of the preceding train. For the basic first four ratios the input clutch K2 drives the triple suns S1, S2, S3, brakes B3 (or one-way brake 32), B2 and B1 being applied successively and singly for the first, second and third ratios, the clutch K1 to the first ring R1 for direct drive, K1 also giving reverse with B3. For overdrive the impeller or turbine of a driving torqueconverter is clutched by K3 to the ring R4 and brake B1 applied. Formulae, together with a graphical solution, specify the ratios. Input and output shafts may be transposed.
Patent GB-922081-A (GB)
Title: Improvements relating to knitting machines
IPC: D04B9/24
Filed: 1961-08-14
Abstract: 922,081. Knitting-machines. TRICO HOLDINGS Ltd. Aug. 14, 1961 [Sept. 12, 1960], No. 29316/61. Class 74 (2). A cast-on device for a circular knitting-machine comprises a flexible foundation having members distributed around its periphery, the members being adapted to embrace the knitting needle as the latter are raised and to engage and hold the first thread of wool passed between each needle. The device, which may be of polythene, comprises radial arms 3 supporting T-shaped members 5 which are interdigitated with the needles when the device is located at the upper end of the needle cylinder. After the first pass of wool thread 14 has been completed a weight is attached to the central hole 8 of the flexible device to cause the members 5 to withdraw out of registry with the needles and allow the loops of the thread 17 of the second course to be drawn through loops of the first thread 14. As knitting proceeds the weight causes the device to be drawn, with the knitting, through the bore 10 of the cylinder. It is stated that the members 5 may be replaced by thread loops through which the corresponding needle passes.
Patent GB-1470889-A (GB)
Title: Fibre plate
IPC: G02B6/08
Filed: 1974-07-02
Abstract: 1470889 Fibre-optics plates PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 July 1974 [5 July 1973] 29354/74 Heading G2J A fibre plate Fig. 4, is composed of fibres in a regular pattern and in parallel relationship between two end faces, there being added at least one marked fibre 14 or 16 arranged parallel to the other fibres. The fibres used to make the plate may be drawn from a rectangular e.g. square or bevelled square Fig. 1 cross-section mono rods and may be coated. The drawn fibres 4 are then arranged as shown in Fig. 2 to form bundles 5, the chamfered faces 3 of each group of four fibres adjoining to provide interstices 6 in which absorbing fibres may be placed.  Bundles 5 are now drawn into square-section bundles (7) Fig. 3 (not shown), which are combined, e.g. in a 14 x 14 arrays to form further square-section bundles (8). These bundles are drawn to produce fibre bundles 9 which are stacked into a jig 10 octagonal cross-section. Fig. 4, so that triangular section spaces 13 are produced into which marked fibres 14, 16 are placed. The octagonal plate may be ground to a circular shape 18 for use.
Patent GB-684926-A (GB)
Title: A method and device for homogenization
IPC: A01J11/16
Filed: 1950-12-01
Abstract: Milk and other dispersions are homogenized by forcing them through a set of juxtaposed balls all of which have the same diameter and are arranged tetrahedron-wise relative to one another so that the set occupies the minimum volume.  The balls may be housed in a cylindrical container, preferably provided with a conical end wall, or in a tetrahedron-shaped container, preferably provided with rounded-off corners.
Patent GB-1158581-A (GB)
Title: Structures
Inventor: WEEKES WILLIAM GEORGE
IPC: E04D1/26
Filed: 1965-07-12
Abstract: 1,158,581. Metal Walls; buildings. W.G. WEEKES Ltd. 12 July, 1966 [12 July, 1965]. No. 29521/65. Headings E1A and E1W. A wall structure comprises upper and lower longitudinally extending metal girders 6, 8 having channels 7 facing each other so as to receive lower and upper edges respectively of wall sections 1 each comprised by a pair of metal sheets secured together in spaced apart relationship, for example by studs 4 rivetted to the two sheets. The wall may comprise means for clamping the wall sections 1 against relative mutual movement, such means comprising clamping members 10 which urge the girders 6, 7 together and/or clamping members 12 extending longitudinally of the girders. A panel may incorporate a window or door frame having peripheral slots 14b in which edges of adjacent wall sections are received. Heat insulating material may be disposed between the sheets of the wall sections. The girders 6 of adjacent walls when incorporated in a building may be metred and connected by bolted triangular plates 18. A floor and ceiling of the building may be supported by metal joists secured respectively to the lower and upper girders 6, 8. The upper girders may also support roof trusses 29 which in turn support roofing in the form of overlapping strips 31 formed with alternate flat and semi-circular portions 33, 32.
Patent GB-754189-A (GB)
Title: Air conditioning equipment and system
IPC: B64D13/06
Filed: 1953-05-05
Abstract: 754,189. Ventilating aircraft. GARRETT CORPORATION. May 5, 1953 [June 30, 1952], No. 29613/54. Divided out of 754,120. Class 137. Air conditioning equipment for an aircraft enclosure comprises primary means for supplying air under pressure to said enclosure ; a hot-gas turbine receiving exhaust air from the enclosure for combustion ; a heat exchanger in the exhaust of the turbine ; means for conducting enclosure exhaust air through said heat exchanger into heat-exchange relation with said turbine exhaust ; air compressing means connected to supply other air under pressure to said enclosure ; and means for converting energy of said heated enclosure exhaust air into mechanical energy, and having a driving- connection with said air-compressing means. The power-package unit A comprises a gas turbine 10 driving a generator 11 and, through a clutch 13, a compressor 12 supplied with rammed air and connected through valves 16, 19, 22, 20, 23, 30, 53 and ducts 17, 18, 21 to different points of use of compressed air, viz, to the combustion chamber 15 of the turbine ; to the cabin 28 for ventilation ; to the airconditioning unit B for driving the air-expansion turbine 38 ; or to de-icers, starters for main engines &c., through the duct 21 and pressure regulating and shut-off valve 24. Air may be supplied to the ventilating system from the main engines if the compressor 12 fails. The combustion chamber 15 may be supplied with exhaust air from the cabin 28 through a duct 29 either directly through valve 20 or through a loop 31 of the heat-exchanger 32 and valve 30, the exchanger being regulably heated by apportioning the turbine exhaust flow between the exchanger and the direct discharge 34 by adjustment of the valve 35. The ducts 17, 18 also pass through the heat-exchanger 32, the line 17 being regulably by-passed around the exchanger through a valve 36 which is controlled by temperature-responsive means 37 in the air-supply ducts to the cabin. The airconditioning unit B comprises the air-expansion turbine 38 which drives a compressor 39 supplied with rammed air and delivering through a duct 40, a demand control valve 40<SP>1</SP> and a selector valve 41 to the cabin. The turbine 38 is driven by air from the duct 18, and the exhaust air is, according to the setting of valves 47, either vented at 48 or taken by duct 49 through a water-separator 50 to the selector valve 41 for delivery to the cabin. A branch 52 of the duct 49, controlled by a valve 51 leads exhaust-air through a heat-exchanger 44 using air, either rammed or induced by an air nozzle 43, as a coolant, the cooled exhaust air being taken to the selector valve 41, or, by setting of the valves 53, admitted to the air-feed duct 46 of the turbine 38.
Patent GB-365143-A (GB)
Title: Improvements in the production of composite articles
IPC: D06N7/00
Filed: 1930-10-03
Abstract: 365,143. Buttons. BRITISH CELANESE, Ltd., 22, Hanover Square, London. Oct. 3, 1930, No. 29686. Convention date, Oct. 3, 1929. [Class 43.] Coated buttons are made by applying a fabric made of or containing cellulose acetate or other thermoplastic derivative of cellulose to a suitable core and subjecting to heat and pressure so as to secure adherence of the fabric to the core. Articles of any shape may be made by pressing the fabric and the core together in suitably shaped moulds. The core may be of any suitable material, particularly compressed fibrous materials such as papier mÔchÚ, fibre board, compressed paper or plastic wood; plastic materials such as casein, clay, &c. ; or thermoplastic materials such as shellac and other resins, gums, &c. The fabric may be a woven, knitted, or other type of fabric made of or containing cellulose acetate or other esters or ethers of cellulose, for example cellulose formate, propionate, or butyrate, or ethyl methyl or benzyl cellulose. It may contain in addition to the cellulose derivative threads or fibres of cotton, silk or wool, and may be coloured or printed with a pattern. Colours may be applied after the fabric has been applied to the core. A button is produced by placing a papier mÔchÚ disc between two layers of cellulose acetate fabric and pressing the assembly in heated moulds having the shape of a button. The fabrics coalesces, and a button blank with a smooth hard surface having the design and colour of the fabric is produced.