baber/WOPTO huggingface dataset:
Patent GB-1162764-A (GB)
Title: Analogue-to-Digital Multiplex Coder
IPC: H03M1/00
Filed: 1967-09-07
Abstract: 1,162,764. A/D converters. INTERNATIONAL STANDARD ELECTRIC CORP. 7 Sept., 1967 [14 Sept., 1966], No. 40947/67. Addition to 1,100,357. Heading G4H. Specification 1,100,357 is modified in that the coding cycle is divided into two halves-   during the first half-cycle m/2 analogue input   signals on independent lines are digitized whilst input signals digitized during the proceeding half cycle are transmitted to a utilization circuit and during the second half cycle a further m/2 analogue input signals on different lines are digitized while the previously digitized signals are transmitted. In the embodiment described in which m = 32, comparators M16- M31 (Fig. 3) are enabled during the first half cycle by the output C10 of the most significant bit of a binary counter CN so that when the analogue inputs N16-N31 coincide with the output from a sawtooth generator FG, the count in the seven least significant bit positions of counter CN is entered into a matrix memory MR2 under the control of gates P4 enabled by the most significant bit. At the same time the matrix memory MR1 is read out, signals V16-V31 from a decoder D1 receiving the five most significant bits of counter CM being applied to the rows and signals t 1 -t 7  from a decoder D2 receiving the three least significant bits of the counter being applied to the columns. During the next half cycle signals V0-V15 sequentially enable the rows of matrix memory MR2 for read out whilst the digitized values of analogue inputs on lines N0-N15 are stored in memory MR1. The sawtooth wave generator is reset by coincidence of output t 7  of decoder D2 and either signal V15 or V31 from decoder D1, i.e. every half cycle. One of the analogue input leads may be used to apply a reference signal, the slope of the sawtooth signal Z being modified if the signal is incorrectly digitized. The sawtooth signal may be replaced by a staircase signal.
Patent GB-1528596-A (GB)
Title: Fluid flow control systems
IPC: F23N5/18
Filed: 1975-10-07
Abstract: 1528596 Automatic control GENERAL ELECTRIC CO 7 Oct 1975 [23 Oct 1974] 41030/75 Heading G3N  In a power station having one generator driven by a gas turbine and another generator driven by a steam turbine wherein the steam is heated by the exhaust gases of the gas turbine and also by an auxiliary burner, fuel flow to the auxiliary burner is controlled to prevent sudden changes. The auxiliary burner only operates if the station power demand exceeds 50% of its maximum, detected at 94. This provides a reference input at 99 to the burner fuel pump control circuit. The output 66 to the pump, which is the analogue equivalent of the contents of a counter 130, tracks this reference signal by detecting at 99 an imbalance between the reference and the pump-control signal and in response causing the counter 130 to count in the appropriate direction to reduce the imbalance. The rate of counting is dependent on the temperature of the generator and is selected at 148.
Patent GB-1059579-A (GB)
Title: Improvements to optical pumping systems
IPC: G01R33/26
Filed: 1965-09-27
Abstract: 1, 059, 579. Optical pumping systems. CSF - COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Sept.27, 1965 [Oct. 2, 1964], No.41057/65. Heading G1A. An optical pumping system comprises a light source containing a first alkaline element, X, and a resonance cell containing X and a second alkaline element Y having a plurality of distinct absorption lines in a predetermined radiofrequency band. The X emission from the source pumps the X atoms in the cell, and the population imbalance of the X atoms is partially transmitted to the Y atoms by spin exchange collision. If then the pumping light from source 1 is passing through the cell 3 is detected by a photo-cell 4, and the frequency of the alternating magnetic field is swept by a sawtooth generator 8, the cell output will show absorptions corresponding to the resonances of X and Y. Since the hyperfine Y resonances are distinct they are not affected by the direction of external magnetic fields, as they would be if the individual resonances were not resolved. Potassium is preferred for the element Y and the invention permits it to be excited by a cesium light source by making the element X cesium. The invention may be used in a magnetometer or an atomic clock.
Patent GB-1511109-A (GB)
Title: Electrodeposition of composite metal coatings containing polyfluorocarbon resin particles
IPC: C25D15/02
Filed: 1976-10-04
Abstract: 1511109 Electro-depositing composite metalresin coating AKZO NV 4 Oct 1976 [4 Oct 1975 26 April 1974] 41112/76 Heading C7B A composite coating comprising a metal, e.g. Ni, Cu, Zn, Pb, Co, Ag, Au, Fe, brass or bronze, and polyfluorocarbon resin particles is electro-deposited on to a cathode from an electro-plating bath comprising the metal ions, 3 to 150 g/l of the resin particles having an average size of less than 10 Ám, a cationic fluorocarbon sufactant and a nonionic fluorocarbon surfactant in a molar ratio of 25:1 to 1:3À5 and total amount of at least 3 Î 10<SP>-3</SP> m moles/m<SP>2</SP> of surface area of the resin particles. Examples of both surfactants are specified, particularly with the generic Formula: C 8  F 17  SO 2 -X-R where X is -O- para-phenyl or -N(CH 3 )-CH 2 CH 2  with R -N<SP>+</SP>(CH 3 ) 3  (anion Cl or I), or X is -N<SP>+</SP>(CH 3 ) 2 -CH 2 CH 2  with R -COO- for the cationic surfactant, and X is -N(C 2 H 5 )- and R -(CH 2 CH 2 O) 11-14 -H for the nonionic surfactant. Particles of other polymers or inorganic materials, such as diamond, carborundum, alumina, silica or pigments, may be included with addition of cationic surfactant not containing F. A stress reducing agent such as p-toluene sulphonamide or saccharin may be added to the bath. The polyfluorocarbon resin may be PTFE &c, polyvinylidene fluoride, copolymer of TFE or vinylidene fluoride and hexafluoropropylene, fluorsilicon elastomers, polytluoroaniline, tetrafluoroethylene-trifluoronitrosomethane copolymer or graphite fluoride. For an Al substrate, a Zn coating is first deposited, then Ni, followed by codeposition of Ni and resin particles e.g. from a Watts bath (Ni SO 4 -NiCl 2 - H 3 BO 3 ). The composite coating comprises two layers (resin on metal-resin) and may be further coated with the same or a different metal, with or without particles of resin and/or inorganic material by electrodeposition from a different bath, e.g. a Ni sulphamate bath in the case of a Ni-PTFE coating on a steel tube cathode.
Patent GB-1223396-A (GB)
Title: Brake assembly for braking the rotary drum of a centrifugal separator, and a separator incorporating such a brake assembly
IPC: F16D57/00
Filed: 1969-08-20
Abstract: 1,223,396. Braking centrifugal separators. WESTFALIA SEPARATOR A.G 20 Aug., 1969 [27 Sept., 1968], No. 41477/69. Heading B2P. [Also in Division F2] In a centrifugal separator a brake assembly for braking the rotary separator drum 2 comprises an annular member 3 of U-shaped or channel cross-section which is open at its inner periphery and has one or more openings 8 leading outwards, a braking member 4 projecting into the interior 7 of the annular member and a line 5 for supplying brake fluid to the interior of the annular member, one of the members being secured to the drum 2 and the other to a stationary frame 1. As shown, the annular member 3 is fixed to the frame 1 and the member 4 which may be ribbed, is secured to the drum 2. Brake fluid controlled by a valve 6 in the line 5 is sprayed against the member 4 and is centrifuged thereby into the interior of the member 3. Alternatively, the annular member 3 is fixed to the drum, Fig. 2 (not shown), and the braking member 4 to the frame 1. The brake fluid is sprayed against the base of the drum 2 and is centrifuged thereby into the interior 7 of the member 3.
Patent GB-1378468-A (GB)
Title: Method of manufacturing contact lenses
IPC: B24B13/00
Filed: 1973-09-04
Abstract: 1378468 Grinding lenses J H SMITH 4 Sept 1973 41480/73 Heading B3D [Also in Division G2] A method of manufacturing contact lenses comprises mounting a semi-finished lens or blank 10 having a desired base curve 12 for axial rotation, forming its concave side with a plurality of peripheral surfaces of curves 27, 29, 30 having slightly different radii of curvature, each being greater than that of the base curve, holding the lens against rotation, and presenting juncture line removal tools having radii of curvature each between that of an adjacent pair of peripheral curves to effect removal of juncture lines 50, 51, 52.  The semi-finished lens may have its convex side 13 finished and has its concave side formed to a desired base curve 12 of radius R1. The lens is initially secured by adhesive 24 to a holder 23 on a freely rotatable shaft 22 arranged at an angle to a rotatable shaft 16 carrying a grinding tool 15 which may be spherical and has a radius R4 greater than R1 and forms a peripheral curve 27 on the lens. Thereafter the procedure is repeated using a grinding tool having a radius R3 between R1 and R4 for forming the peripheral curve 29, and this procedure is again repeated using a tool having a radius R2 between R1 and R3 for grinding the peripheral or annular curve 30. The curves 27, 29, 30 are then polished by tools 35, Fig. 3, having radii which are equal to or slightly less than the radii R2, R3, R4, the lens again being mounted on a holder 23 carried by a freely rotatable shaft. Finally, the lens is secured by adhesive (44, Fig. 4, not shown), to a holder (43) on a non-rotatable shaft (42) and is presented to successive polishing tools (45) for removing the juncture lines 50, 51, 52, the tools having radii between R1 and R2, R2 and R3, and R3 and R4, respectively.
Patent GB-933867-A (GB)
Title: Fluorinated steroids
IPC: C07J5/00
Filed: 1959-12-08
Abstract: The invention comprises a compound having the formula: <FORM:0933867/IV(a)/1> wherein -C1-C2 and -C4-C5- are -CH2-CH2- or -CH=CH-; -C9-C11- is <FORM:0933867/IV(a)/2> different and are hydrogen atoms, alkyl radicals, alkaryl radicals, aryl radicals, cycloalkyl radicals or heterocyclic radicals or taken together are cycloalkyl or heterocyclic radicals; and Y is hydrogen, fluoro, OH or OR, in which R is a lower alkanoyl radical, a tetrahydropyran-2-yl-oxy radical or a tetrahydrofuran-2-yl-oxy radical, and the preparation thereof by treating a steroid of formula I lacking one or more of the above specified substituents or structures in accordance with one or more of the following reactions performed in any desired order; (1) forming the D 1 and/or D 4 unsaturation by use of a dehydrogenating agent such as SeO2 or by use of a microorganism such as the Nocardia type; (2) treating the 9,11-oxide with HF preferably in a suitable inert solvent to form the 9a -fluoro-11b -hydroxy steroid, and, if desired, oxidising the 11-hydroxy to 11-keto at any time in the reaction sequence; (3) reacting the 16a -17a -dihydroxy steroid in the presence of an acidic agent with a carbonyl compound <FORM:0933867/IV(a)/3> wherein R1 and R11 are as defined above; (4) introducing the 6a -fluoro atom by treating the corresponding 5a ,6a -epoxy steroid with HF and then dehydrating; (5) where the 6a -mono-fluoro compounds are prepared forming the 11b -hydroxy group microbiologically, employing for example Botrytus cinerea. The 16a ,17a -dihydroxy steroid may be obtained by treating the corresponding 17a -hydroxy steroid with an organism such as Streptomyces roseochromogenus, Streptomyces viridus, Streptomyces olivaceous, and Streptomyces argenteolus.
Patent GB-1128697-A (GB)
Title: Carburetor
IPC: F02M17/16
Filed: 1967-09-13
Abstract: 1,128,697. Spray carburetters. J. TOLNAL Sept. 13, 1967 [Sept. 19, 1966], No.41720/67. Heading F1B. A suction actuated disc 11 is mounted on a fuel metering needle 13, the downward movement of which is limited by an arm 56 actuated from the accelerator pedal. The fuel entering at 7 flows through a pressure control valve 31, the loading of which is controlled by a cam 39 operated conjointly with the arm 56, into a chamber 8 connected through passage 9 to the nozzle 27. The disc 11 is rotatably mounted on the needle 13 and its upper surface, which is provided with vanes 51 producing rotation, may be covered with porous material to improve vaporisation of the fuel leaving the nozzle 27. The edge of the disc may also be notched to improve mixing.
Patent GB-992374-A (GB)
Title: Automatic brake adjusting mechanism
IPC: F16D65/56
Filed: 1963-10-24
Abstract: 992,374. Brakes. KELSEY-HAYES CO. Oct. 24, 1963 [Jan. 18, 1963], No. 41979/63. Heading F2E. Adjusting means for a brake mechanism comprising first and second brake shoes 12, 13, a brake drum 10, an anchor 22 and means 27 for moving the brake shoes away from the anchor and into engagement with the drum, consists of an extensible strut 25 connecting adjacent ends of the shoes, a rotatable toothed wheel 40 which controls the extension of the strut, a unitary spring device 41 having a sleeve-like portion 52 engaging the strut and having a portion 50 functioning as a pawl, means mounted on the second shoe and connected to the anchor to tension the spring and move the pawl in one direction to engage a successive tooth on the wheel as the brake is applied and to rotate the wheel when the brake is released. The strut comprises an internally threaded nut receiving a threaded stem, the end of the nut being bifurcated to receive the web 23 of the brake shoe 12. The sleeve portion 52 of the spring 25 is also bifurcated to receive the web 19 of shoe 13 and slides over the end of the threaded stem. The tensioning means comprise a rod 47 hooked at one end to the spring and at the other end to a bellcrank lever 42 pivotally connected to the web of shoe 13. A further rod 44 is attached at one end to the anchor 22 and hooked at the other end to lever 42. When the brakes are applied with the vehicle travelling in reverse, movement of the shoe 13 turns the bellcrank lever 42 and causes rod 47 to tension the spring and extend the strut 25 to correct for wear. The brake is actuated by hydraulic cylinder 27, the drum 10 is mounted in the hub wheel of a vehicle and a stationary backing plate 11 is mounted on a stationary part of the vehicle.
Patent GB-1521916-A (GB)
Title: Apparatus for moving elongate objects through a coating material
IPC: B65G49/04
Filed: 1975-10-14
Abstract: 1521916 Conveying elongate articles through galvanizing bath WHEATLAND TUBE CO 14 Oct 1975 [15 Oct 1974] 42041/75 Heading C7F [Also in Division B8] Elongate objects such as pipes are moved through a liquid coating bath such as molten zinc by two spaced apart rotating U-shaped screws partially submerged in the bath, the objects being received in flights on the screws. As shown, pipes 26 are fed to the coating bath by a screw feed conveyer 24 and are sequentially fed to pivotal arms 28 which are cycled between two positions alternately to feed the pipes to opposed vertically oriented pintle conveyers 34 and 40. The pipes move along the downward flights of these conveyers in timed relation for placement on opposite sides of the flights of U-shaped screws 51, 52, 53 and are held in driving engagement with the flights by opposed U-shaped cradles 46, 47. Simultaneous rotation of the three screws result in the pipes being automatically moved through the coating bath 20. The screw rotation speed may be varied to accurately control the immersion time. The flights on the screws may be of uniform or variable pitch. If hollow pipes are being processed the pitch of the flights of the screws must be varied to obtain a tilting action before immersion, to reposition the pipes horizontally for arcuate traversal during immersion, and to obtain a tilting action for the pipes for drainage on withdrawal. The coated pipes are removed by two vertically staggered magnetic rollers 76, 77 which simultaneously tag two pipes from the opposite sides of the screws. The pipes are then discharged along inclined rollers and the excess zinc drains back into the bath.
Patent GB-1286805-A (GB)
Title: Improvements in or relating to the manufacture of roofing tiles
IPC: B65G49/08
Filed: 1968-09-09
Abstract: 1286805 Conveying tiles on pallets REDLAND TILES Ltd and L J MARSHALL 22 Aug 1969 [9 Sept 1968] 42071/69 Heading B8A Apparatus for loading a plurality of aligned streams of "green" roofing tiles on pallets on to shelves in racks, is such that each shelf supports a predetermined number of pallets abutting each other in a single row and comprises for each stream, a conveyer to supply the pallets, a fixed slideway to support the pallets between the conveyer and the respective shelf, means for counting the pallets as they pass along the conveyer and slideway, and a single pusher device operable on pallets in all the streams simultaneously to load the pallets to push the last pallet of the predetermined number in each stream fully on to the respective shelf, when the counting means has caused the drive to the conveyers to be stopped after the passage of sufficient pallets. The descriptive matter is the same as that in co-divisional Specification 1,286,804 but the claims differ.
Patent GB-1387578-A (GB)
Title: Multi-way valve
IPC: F16K11/07
Filed: 1973-09-07
Abstract: 1387578 Valves ROBERT BOSCH GmbH 7 Sept 1973 [11 Sept 1972] 42268/73 Heading F2V A multiway valve having a spool 22 for selectively interconnecting work chambers 14, 15 to a supply chamber 13 or one of a pair of return chambers 18, 19 is provided on actuating spindles 32 with damping plates 28, 29 having return springs 36 biasing them against stops 35 on the spindles and an aperture 39. Each plate 28, 29 separates the respective return chamber from clamping space 38. The opposite end of' the return springs 36 may rest on a second plate 37 or directly on the housing. In a modification the end plugs 34 are provided with an annular flange (52) against which the plates 28, 29 rest in valve neutral position. The spool may be actuated electromagnetically, manually, hydraulically or pneumatically.
Patent GB-1040424-A (GB)
Title: Aircraft undercarriages
Inventor: NEILSON CHRISTOPHER BERNARD VE
IPC: B64C25/00
Filed: 1963-10-28
Abstract: 1,040,424. Aircraft undercarriages. ELECTRO-HYDRAULICS Ltd. Oct. 19, 1964 [Oct. 28, 1963], No. 42388/63. Heading B7G. An aircraft undercarriage comprises a first member formed of sheet steel, shaped and welded to provide a casing; upper and lower bearings within said casing; a second member within said casing and including a tube slidable in said bearings, which tube passes through the base of the casing for connection with wheel carrying means, and means to prevent undesired relative rotation between the casing and the sliding tube. The undercarriage comprises a casing 1 of welded sheet steel formed with bearing tubes 10, 11 for retraction pivots and reinforced by internal webs 19, 20, 24. The lower part of the easing carries bearings 13, 16 for a sliding tube 2 to which is attached an end fitting 6 for a wheel or bogie and the sliding element 31 of a shock absorber 30 which is secured at its upper end to a braced structure between webs 19 and 24. The top end of tube 2 terminates in a fitting 25 to which is pivotally attached an arm 28 in turn connected to a further arm 29 pivoted to casing 1, thereby preventing rotation of tube 2 within the casing. An alternative embodiment employs an external scissors linkage.
Patent GB-917639-A (GB)
Title: Halogenated cyclopentenes and fungicidal compositions containing them
IPC: C07C17/04
Filed: 1960-12-09
Abstract: The invention comprises compounds of the general formula <FORM:0917639/IV (b)/1> wherein the radical R1 is an alkyl, alkoxy or cycloalkyl radical containing 2 to 6 carbon atoms or a phenyl C1-4 alkyl radical, X1 is a chlorine or bromine atom, Z is a chlorine or bromine atom and X is a whole number of up to 13.  The invention also comprises a process for the preparation of the broader class of halogenated cyclopentenes of the general formula <FORM:0917639/IV (b)/2> in which X is a halogen atom, R is an alkyl, alkoxy, cycloalkyl or aralkyl radical, which may be substituted, especially by halogen atoms, or R is a radical of the formula <FORM:0917639/IV (b)/3> Y is a hydrogen or halogen atom or another group R and P is a hydrogen atom or an alkoxy or phenoxy radical; wherein an alkyl, alkoxy, cycloalkyl or aralkyl substituted polyhalo-cyclopentadiene is reacted with halogen under free radical forming conditions or with a sulphenyl halide.  The cyclopentadiene is preferably reacted first with one mole of halogen or sulphenyl halide, e.g. in the presence of U.V. light or peroxide catalysts, at a temperature of about 60 DEG C. to give the corresponding cyclopentene and the halogenation continued at a higher temperature using the same or different halogenation agent to give a cyclopentene halogenated in the substituents.  A list of suitable reactants is given including compounds in which the alkyl, cycloalkyl or aralkyl radicals themselves are substituted by ether and ester groups.  Examples describe the chlorination of ethyl, propyl and butyl-pentachloro-cyclopentadiene.  The alkyl pentachloro-cyclopentadienes are prepared by reacting hexachlorocyclopentadiene with a trialkyl phosphite.ALSO:A fungicidal composition contains as active ingredient an alkyl, cycloalkyl or aralkyl substituted cyclopentene of the general formula <FORM:0917639/VI/1> wherein R1 is an alkyl, alkoxy or cycloalkyl radical containing 2-6 carbon atoms or a phenyl-C1-14-alkyl radical, X1 is a chlorine or bromine atom, Z is a chlorine or bromine atom and #c is a whole number of up to 13, together with a solid or liquid diluent or carrier.  The compounds show an inner-therapeutic or systemic action when used against fungi causing yellow sickness in plants.  Specified active ingredients of the invention include chloro-ethylheptachloro-cyclopentene, trichloro-propyl-heptachloro-cyclopentene, and a tetrachloro-n-butyl-heptachloro-cyclopentene.  Specified diluents are talc and acetone containing oxyethylated nonylphenol as surface active agent.
Patent GB-873562-A (GB)
Title: Means for recording and/or reproducing recorded high frequency signals
Inventor: HOLT ARTHUR WHEELER
IPC: G11B15/61
Filed: 1959-03-15
Abstract: 873,562. Automatic speed and position control systems. TELETRAK CORPORATION. Dec. 15, 1959, No. 42680/59. Class 38 (4). [Also in Group XXXVIII] In an apparatus for magnetically recording and playing back signals, especially high-frequency and television signals, in which a magnetic tape 14 is passed helically round a rotating cylinder 11 carrying a magnetic head 12, means responsive to the relative position of the head and the record on the tape controls the relative speed of the cylinder and tape. The track so formed is continuous but comprises in effect separate tracks 22 arranged obliquely across the tape, and it is necessary that these tracks be followed exactly by the head 12 when playing back. For this purpose, pulses produced in a detector head 26 by the tracks 22 passing it are compared with pulses produced in a further head 24 at each revolution of the cylinder 11 to produce a correction signal which is utilized, by means not shown, to vary the relative speed of the travel of the tape and the surface of the cylinder. Photo-electric means 21 is provided to overlie the gap between the convolutions of the tape on the cylinder and maintain the said gap in a predetermined position by controlling, by means not described, servomotors for adjusting the feed and guide rollers 16 and 17.