baber/WOPTO huggingface dataset:
Patent GB-728384-A (GB)
Title: Anti-thyroid compounds
Inventor: RIMINGTON CLAUDE
IPC: C07D233/84
Filed: 1951-04-02
Abstract: The invention comprises 1-alkyl-2-mercaptoglyoxalines substituted in the mercapto-group by a group-CO.R1 where R1 represents a substituted or unsubstituted alkoxy, aralkoxy or aryl group or a further glyoxaline residue, which have anti-thyroid properties and are obtainable by the action of alkyl or aralkyl chloroformates, aroyl chlorides or carbonyl chloride on 1-alkyl-2-mercaptoglyoxalines.  In examples, 1-methyl-2-carbethoxy-, -2-carbomethoxy, -2-carbobenzoxy-, -2 - benzoyl - thioglyoxalines or -hydrochlorides according to the solvent are obtained by the action of the corresponding alkyl chloroformates, carbobenzoxychloride, and benzoyl chloride, and di-(1-methyl-2-glyoxalinyl) dithiol carbonate dihydiochloride by the action of carbonyl chloride, on 1-methyl-2-mercaptoglyoxaline.  The Provisional Specification refers also to substitution of the above-mentioned group R1 by amino and alkylamino.
Patent GB-1476272-A (GB)
Title: Sintered particles of tetrafluoroethylene polymers and process for their preparation
IPC: C09D7/65
Filed: 1975-02-24
Abstract: 1476272 Sintered particles of tetrafluoroethylene polymer MITSUI FLUOROCHEMICALS CO Ltd 24 Feb 1975 [26 Feb 1974] 7642/75 Heading C3C Sintered particles of a non-melt-fabricable tetrafluoroethylene polymer (i.e. having a melt viscosity at 380 C. of at least 1 x 10<SP>9</SP> poises) prepared by aq. dispersion polymerization and having an average particle size of 5-500 microns, a sphere factor (as defined) of 1À0-1À2 and containing at least one enclosed void which causes the particles to have a precipitation rate in trichloroethylene (as defined) of no greater than 20% are claimed. The sintered particles are made by (a) atomizing an aq. dispersion obtained from the aq. dispersion polymerization of tetrafluoroethylene and containing (i) 5-80% by wt. of unsintered non- melt-fabricable particles of the polymer, of average particle size 0À05-0À5 micron, (ii) 0À2-20% by wt. of the particles of a non- ionic or anionic surfactant having a b.p. less than the polymer sintering temperature and (iii) 0À2-20% by wt. of either a liquid foaming agent having a b.p. below the polymer sintering temperature and a water solubility of 15 gm./100 ml. or less at 25 C., or a solid foaming agent which decomposes at a temperature below the polymer sintering temperature, (b) heating the atomized dispersion at above the polymer sintering temperature in an inert atmosphere, (c) cooling the sintered particles below the polymer sintering temperature, and (d) recovering the sintered particles. In the examples mixtures of a non-ionic surfactant or dodecyl benzene sulphonate, water and trichloro-trifluoro-ethane, propyl ether, ammonium carbonate or petroleum ether were emulsified, optionally with an ultrasonic wave generator and added to an aqueous dispersion of polytetrafluoroethylene or a copolymer of tetrafluoroethylene and hexafluoropropylene, and the mixture was placed in tank 1 of Fig. 1 from which it was fed to a binary fluid nozzle 5 where it was atomized at outlet 6 with air from compressor 3 and sent via pipe 4 to nozzle 5. The atomized dispersion emerges into sintering chamber 9 where heated air from 7 enters via pipe 8 and foams the drops of the dispersion and sinters the polymer particles which are then cooled in 10 by cool air from pipe 11. The sintered particles are then sent to cyclone 12 and recovered in receiver 20.
Patent GB-890834-A (GB)
Title: New pregnadiene compounds
IPC: C07J5/00
Filed: 1958-03-10
Abstract: The invention comprises 6a -halopregnadienes of the general formula <FORM:0890834/IV (b)/1> in which R1, R2 and R3 are hydrogen or a free or fractionally converted hydroxyl group, R4 is hydrogen or a methyl group, X1 is hydrogen, chlorine or fluorine, X2 is chlorine or fluorine, and Y is oxo, two hydrogen atoms, or hydrogen and a free or esterified hydroxyl group in a - or b -orientation, at least one of R3 and R4 being different from hydrogen in compounds in which all the substituents R1, R2 and Y are oxygen containing functions.  The D 1,4-6-fluoro- and -6-chloropregnadiene-3 : 20-diones are prepared by dehydrogenation of the corresponding D 4-pregnenes in the 1 : 2 - position (a) by use of selenium dioxide or selenious acid preferably in the presence of a tertiary alcohol and a tertiary organic base, (b) by use of microorganisms particularly Fusarium solani, F. caucasicum, Calonectria decora, Alternaria passiflorae, Ophiobolus heterostrophus, Didymella lycopersici, O. miyabeanus and Corynebacterium simplex.  Other conversions of the steroid so obtained may be carried out, e.g. esterification, saponification of ester groups, oxidation of 11-hydroxyl groups to 11-oxo.  The invention is illustrated by detailed examples.  21-Acetate of 6a -fluoro-16a -hydroxy-cortisone is prepared from the 21-acetate of bis-cycloethylene ketal of 6a -fluoro cortisone via the 21 - acetate of 6a  - fluoro - 3, 20 - bis - ethylene - dioxy - D 5,16- pregnadien - 21 - ol - one, the free 21 - ol, 6a  - fluoro - A4,16- pregnadien - 21 - ol - 3,11,20-trione, and 6a -fluoro-16a -hydroxycortisone.
Patent GB-526195-A (GB)
Title: Improvement in vinyl resin compositions
IPC: C08K9/10
Filed: 1939-03-10
Abstract: 526,195. Vinyl resin compositions. CARBIDE & CARBON CHEMICALS CORPORATION. March 10, 1939, No. 7744. Convention date, April 15, 1938. [Class 2 (iii)] Fillers, suitable for use in polyvinyl resin plastic and coating compositions, are prepared by coating discrete particles of a filler with a thin film consisting essentially of a polyvinyl acetal resin containing free hydroxyl groups. The acetals are preferably prepared from polyvinyl alcohols or esters having a molecular weight of at least 7000 and from aliphatic saturated straight-chain aldehydes having 2-6 carbon atoms, the degree of acetalization being from 33 per cent. to 94 per cent. The acetal may be applied to the filler particles in the form of a lacquer, which may contain pigments, dyes, light- or heat-stabilizing agents, e.g., stearates and oleates of lead, calcium, cadmium, or strontium, or plasticizers. The fillers may be used in compositions comprising vinyl resins, e.g. interpolymers of vinyl halides with vinyl lower aliphatic esters such as vinyl chloride-acetate, -formate, -propionate, or -butyrate. In examples, polyvinyl chlorideacetate is mixed with (a) a filler obtained by coating mica with a lacquer comprising polyvinyl acetal and whiting, with or without " Brilliant Green Crystals " or titanium dioxide; (b) a filler obtained by coating asbestos with a lacquer comprising polyvinyl acetal with or without " Erie Pink " or whiting.
Patent GB-968797-A (GB)
Title: Improvements in or relating to the acceleration of a thermogravity circulation of liquids in a pipe or pipe systems
IPC: H01F27/12
Filed: 1963-02-27
Abstract: 968,797. Closed liquid circulating systems for cooling transformers. H. G. BINDER. Feb. 27, 1963, No. 7781/63. Heading F4U. [Also in Division F1] In a method of increasing the rate of circulation of the cooling medium in an electric transformer thermo-gravity cooling system having a transformer tank connected by pipes to its cooling bank, a portion of the cooling medium is continuously withdrawn from the system by a pump or pumps and is continuously delivered back to the system in a direction and at a rate of flow such as to increase the rate of circulation of the cooling medium in the cooling system, and when the pump or pumps is out of action the circulation is provided exclusively by the thermo-gravity effect. A flow accelerator unit u, Fig. 4, comprising the pump and a Venturi-ring g, Fig. 3, is inserted in a pipe connecting the transformer tank t to the cooling bank which has a number of radiators q. Flanges m and n on the Venturi-ring g are connected to the pump, which may be of the reciprocating type or of the centrifugal type driven by a gap-tube electric motor. The pump receives a portion of the cooling medium, such as oil, from the main stream through a peripheral opening o and passes this portion with increased energy through a peripheral opening p back to the main stream to accelerate its flow.
Patent GB-1194412-A (GB)
Title: Improvements in or relating to Cable-clamp arrangements for use in Undivided Housing Collars
Inventor: DUNCAN WILLIAM CHAMBERS WILSON
IPC: H01R13/595
Filed: 1967-02-17
Abstract: 1,194,412. Cable clamps. PLESSEY CO. Ltd. 29 Jan., 1968 [17 Feb., 1967], No. 7787/67. Heading H2E. [Also in Division E2] A cable 2 is clamped to a collar 3 integral with a connector member 1 by means of a pair of clamping jaws 5 (one only of which is shown) which are drawn together on to the cable 2 allowing projections 11 to be received in holes 4 in the collar 3, the outer surface 10 of the jaws co-operating with the inner surface 9 of the collar. The two jaws when clamped together define a channel receiving the cable, formed of partly cylindrical surfaces along a length from a flange 12 to the entry to the collar, where it becomes outwardly tapered inside the collar (Fig. 2, not shown). Edges of the jaws provide mutual abutments from which extend set back longitudinal edges 8a having flanges 13 (Fig. 3, not shown), 14 of unequal thickness, screws through the adjacent flanges of the two jaws retaining the latter firmly. Angle cuts 19 at the inner ends of the jaws allow the jaws to be inserted into and removed from the collar without longitudinal movement. Alternatively, more than two jaws may be used.
Patent GB-1521435-A (GB)
Title: Keyboard button manufacture
IPC: G06F3/02
Filed: 1977-02-24
Abstract: 1521435 Keyboard button manufacture photographically IBM UNITED KINGDOM Ltd 24 Feb 1977 07823/77 Heading G2X Keyboard buttons are manufactured by assembling blank buttons each having a surface on which a character is to be deposited; cleaning the surface of each button chemically; coating the surface of each button with a layer of radiation-sensitive material, e.g. photo-resist material; exposing the surface of each button to radiation to produce a latent image of a selected character; developing the exposed layer to provide the selected character; and coating each character-bearing surface with a transparent protective layer. A preferred manufacturing scheme is illustrated in Fig. 4.
Patent GB-607943-A (GB)
Title: Improvements in and relating to gas-heated appliances
IPC: F24C3/00
Filed: 1946-03-13
Abstract: 607,943. Gas-heated radiators. CHANDLER, D. March 13, 1946, No. 7909. [Class 126] A gas-heated appliance radiating heat from a metal front panel 6 on the inside of which gas flames 8 impinge has a back and two sides behind the flames insulated by three metal partitions the rear one of which may be shaped to accommodate a thin lining 16 of refractory, heat insulating material. The curved metal partition 12 nearest the flames is of heat-resisting metal and the second curved partition 13 is of highly polished untarnishable metal, the two partitions 12, 13 being folded together to enclose an air space which may contain insulating or heat-reflecting material and above which are apertures for the escape of hot gases to the flue 11. A third flat partition 15 has a thin backing of insulating material, e.g. glass wool, covered with wire netting held by a spring strip 18.
Patent GB-1111408-A (GB)
Title: Liquid level gauge
Inventor: SVILPE KARL YANOVICH
IPC: G01F23/36
Filed: 1967-02-20
Abstract: 1,111,408. Variable resistors. RIZHSKY ZAVOD " AVTOELEKTROPRIBOR ". 20 Feb., 1967, No. 7943/67. Heading H1S. [Also in Division G1] A liquid level indicator comprising a float linked to the slider of a rheostat in series with a battery and water is characterized in that the rheostat and its slider are rotatably adjustable. The rheostat winding 8 (Fig. 2) is wound on a former 7, one end of which is pivoted at 5 and the other end adjustably secured by a screw 17 and spring 18. The slider 9 is a flat resilient strip bent back on itself, with one arm 14 (Fig. 3) located in a U-shaped bracket 15, and the other arm 10 attached by a screw 29 in a sleeve to the arm of the float, whereby the slider is angularly adjustable for zero reading on the meter when the tank is empty. The correct full reading is obtained by angular adjustment of the former 7 about pivot 5 using screw 17. The angle 2 (Fig. 3) between the two arms of slider 9 is adjusted to obtain the desired contact pressure.
Patent GB-600913-A (GB)
Title: Apparatus for testing magnetic and/or dielectric materials
IPC: G01R33/12
Filed: 1944-04-28
Abstract: 600,913. Magnetic tests ; determining physical qualities of materials ; inductance and capacitance measurements. STANDARD TELEPHONES & CABLES, Ltd. April 28, 1944, No. 7990. Convention date, June 4, 1943. [Class 37] Materials are tested by examining their magnetic or dielectric properties by means of high frequency oscillations modulated by a low frequency. A source of alternating current 1. is connected to the primary 2 of a transformer that has two secondaries 3, 4. The secondary 4 is earthed near its centre and is connected at one end to a resistor 5 having a sliding contact 6 connected to one terminal of the horizontal deflecting system H of an oscillograph O. A condenser 8 is connected in parallel with the secondary 4 and resistor 5, a phase-shifting device for the voltage applied to the system H being thereby provided. The secondary 3 is connected to a coil 10 adapted to be coupled to a coil 11 through the specimen to be tested. One end of the coil 11 is connected to a resistance 12 having an adjustable contact 13 which is coupled by a condenser 15 to the other end of the coil 11. The coil 8 and condenser 15 form a resonant circuit which is connected to the grid of a valve 17. The anode of the valve 17 is coupled by a condenser 20 to the grid of a valve 21, the anode of which is connected through a condenser 26 and a variable resistance 25 to the grid of the valve 17, so as to constitute an oscillator with regeneration feedback. The anode of the valve 17 is connected. through a condenser 30 to the vertical deflecting system V of the oscillograph O. When no magnetic material is in the coils 10, 11 the trace of the oscillograph screen is formed by high frequency oscillations modulated at a low frequency. When a standard specimen is placed in the coils 10, 11 the increase in flux and the saturation effects in the material cause a change in the trace. A specimen to be tested, of like shape and size, is then substituted for the standard, whereupon the trace on the oscillograph alters if the test specimen differs in magnetic properties from the standard. If the entire body of the sample is to be examined relatively low frequencies are employed, e.g. the generator 1 may be 60 cycles and the frequency of the resonant circuit 11, 15 may be 1000 cycles. For examining surface conditions such as case hardening the frequency of the resonant circuit may be 20,000 cycles. Instead of applying the modulating signal by means of a coupling between the coils 10, 11, a modulating voltage may be inserted in the anode supply of the valves 17, 21 or elsewhere in the circuit. The oscillograph may be replaced by other instruments such as a rectifier and meter. The dielectric properties of a material may be tested by making the material the dielectric of the condenser 15 so that the dielectric losses may be interpreted in terms of the amplitude of oscillation.
Patent GB-1206522-A (GB)
Title: Analog centesimal recorder having redundant digit
Inventor: LEX ROWLAND GARBER JR
IPC: G01R13/04
Filed: 1968-02-19
Abstract: 1,206,522. Chart recorders. LEEDS & NORTHRUP CO. 19 Feb., 1968 [3 March, 1967], No. 8035/68. Heading G4H. [Also in Divisions G1] In apparatus for recording a digital input signal on a strip chart in two analogue type records, the first record is derived from the output of a first digital-analogue converter to which are fed the most significant part of the digital signal and a digital signal of intermediate significance, the second record being derived from a second analogue/digital converter receiving the least significant part of the digital signal and the signal of intermediate significance. In the embodiment of Fig. 1 the two analogue/digital converters comprise resistors connected to transistors 22-64 the conductivity of which is controlled by the 1, 2, 2, 4 weighted output signals of digital register 1, the converters controlling a coarse and fine pen recorder 92. In the embodiment of Fig. 2 which is suitable for measuring frequency an additional transistor 245 and associated circuitry is included to fold the fine recorder scale about À060 instead of 0. This prevents the fine pen from crossing from one side of the strip chart to the other as the frequency fluctuates from slightly below to slightly above e.g. 60 cps. In a modification of the embodiment of Fig. 2 an additional increment of voltage is added in (to allow the fine recorder pen to continue to record increasing frequencies up to À099) under the control of either an electronic switch or a switch operated by the travel of the fine recorder pen. The outputs from the digital/analogue converters may be fed direct to electro mechanical or electronic modulators, the resulting A.C. signals being fed to transformers 310, 319 (Fig. 3) the secondary windings of which are connected via amplifiers 311, 320 to the fine and coarse pen motors 312, 321 respectively. Alternatively to prevent spurious changes in the digital input signal being recorded the signals from the converters may be applied to contacts 303, 316 of a relay 324, the relay being energized under the control of circuitry 330.
Patent GB-900744-A (GB)
Title: Gas turbine power units
Inventor: BUCKINGHAM DAVID EDWIN JAMES
IPC: F02C9/28
Filed: 1959-03-09
Abstract: 900,744. Fluid-pressure servomotor-control systems. NAPIER & SON Ltd., D. March 4, 1960 [March 9, 1959; Aug. 26, 1959], Nos. 8086/59 and 29244/59. Class 135. [Also in Group XXVI] A gas turbine power unit having a free power turbine and equipped with a fuel metering unit which is actuated in response to pressure and temperature at the compressor air inlet, is provided with a governor which is coupled to the free power turbine and compares the actual speed of this turbine with a datum and further modifies the fuel supply to maintain the datum speed which is set by a manual speed selector. The gas turbine engine 10 has a free power turbine 22 driving a helicopter rotor 11. Fuel is supplied to the burners 19 through a metering unit 17 which is responsive to ambient air pressure and temperature at the compressor inlet through sensing devices 95, 96, respectively, the metering unit being fed by a variable-stroke pump 16. Geared to the turbine output shaft 26 is a hydro-mechanical speed signal generator 28, e.g. as disclosed in Specification 832,195, which produces a differential hydraulic pressure between two pipes 29, 30 connected to a comparator unit 31 in which the datum is set by a manual speed selector lever 34 through a lever 32. A control pressure set up by the comparator through a pipe 35 acts on a servoadjuster 47 to adjust the stroke of the pump 16. The selector lever 34 is also connected to the metering unit 17. Pipes 29, 30 lead to opposite sides of a diaphragm 36, Fig. 2, in the comparator 31, this diaphragm actuating through a lever 42 a half ball leak-off valve 45 controlling the pipe 35, in opposition to a datum loading spring 40. The compression of this spring is set through a movable abutment 50 carried by a double-acting servo piston 51 which is arranged to follow up the movement of a control-valve 54 connected through lever 32 to the manual setting lever 34. Operating pressure to this servo piston is supplied through a pipe 59 and exhausted along with the leak-off from valve 45 through a pipe 48. In a modification, an indication of the governor authority is obtained electrically through a variable induction device, Fig. 4, having'a movable armature 66 actuated by a pressure-balanced plunger 64 which contacts the half ball valve lever 42 to indicate, e.g. on a dial, the effective movement of this lever. Several forms of the inductive device are described.
Patent GB-767905-A (GB)
Title: Improvements in or relating to wheel cover structure
IPC: B60B7/08
Filed: 1955-03-21
Abstract: 767,905. Wheel covers. GAYLORD PRODUCTS, Inc. March 21, 1955 [April 14, 1954], No. 8138/55. Class 144 (1). A wheel cover 6 has an annular retaining ring 7 which fits within an annular web or flange 12 of the wheel rim and has circumferentially spaced slits or slots 19 providing resilient portions 21 connected at their ends to intermediate support portions 22, sharply pointed spurs 23 projecting radially from the resilient portions 21 to bite into the said rim flange 12. The spurs 23, which may be separate attachments, or as shown, pressed outwardly from the ring 7, cam against the rim flange 12 on fitment of the cover and cause the resilient portions 21 of the ring to bow radially inwardly under tension. On subsequent removal of the cover, the portions 21 will remain slightly bowed, imparting a polygonal form to the ring 7. The ring 7 may be separately formed with a radial flange which is clamped between the return-bent peripheral edge 8 of the cover 6, or may be an integral continuation of the return-bent portion 8 of the cover. The circumferential slits or slots 19 may connect into stress-relieving holes at each end, and may be of linear, cranked, or triangular form.