baber/WOPTO huggingface dataset:
Patent GB-420584-A (GB)
Title: Improved combustion apparatus for domestic boilers and the like water heating plant
IPC: F23K3/06
Filed: 1934-07-17
Abstract: 420,584. Boiler furnaces. COLLE, W. J., 14, Lower Regent Street, London. July 17, 1934, No. 20958. [Class 51 (i)] Combustion apparatus for heating a domestic boiler comprises a combustion chamber to which fuel is delivered from a hopper 4 and which contains near its base a hollow fuelspreading device 20 through which water from the boiler circulates, there being means for admitting air to the zone immediately around the spreading device and means for delivering preheated air above the combustion zone ; an outlet 11 is provided for the flames to pass to the heating chamber of the boiler. In the construction shown, air from a blower is delivered in part to a chamber 18, whence it passes by outlets 19 beneath the fuel spreading device 20 to the zone around it, and in part to a heating jacket surrounding the outlet from the combustion chamber, whence it is delivered above the fuel by a pipe 10 with downwardlydirected perforations. A water-jacket 2 surrounds the combustion chamber, and is connected by pipes 24 with the fuel-spreader 20. The lower end of the delivery shoot from the fuel hopper is provided with a pair of pivoted plates 5 the opening between which is adjusted by a vertically-movable wedge device 8 in order to control the delivery of fuel.
Patent GB-1332245-A (GB)
Title: Apparatus for determining phase displacement between periodic signals
IPC: G01R25/00
Filed: 1971-04-19
Abstract: 1332245 Phase comparators BROWN BOVERI & CO Ltd 19 April 1971 [5 Feb 1970] 20996/71 Heading H3A In apparatus for comparing the phase of two signals, the signals are converted into rectangular pulse signals by amplification and limiting; the time intervals between like transitions in these pulse signals are arranged to produce a pulse-duration modulated signal; and discontinuities in the modulated signal due to passages through 2# cause the production of a signal indicative of the direction of the transition. The two signals whose phases are to be compared, are limited to produce rectangular signals and are fed to a unit which produces a pulse train CC having a pulsewidth proportional to phase difference, and a rectangular pulse signal W at the same frequency as the two input signals. The signal CC is then integrated at 1, Fig. 4, to produce a signal which is fed to store 2, and the unit 1 reset fed a new integration. When this integration is completed, the integrator output V D  and the stored value V E  are fed to a comparator 4 which produces an output on line F if V D -V E  is greater than a reference voltage, or an output of line G if V E -V D  is greater than the reference. These outputs are then fed to a reversable counter 7 which gives a digital indication of the phase to the nearest 2#. Within 2#, an analogue representation of the phase is given by the amplitude of signal V E  on line E. The counter output may be fed to a D/A converter 8, the output from which is combined with signal E. If a pulse CC is narrower than a predetermined critical value a signal J developed by units 10 ... 14 is fed to store 2. This signal has a valve of 0 or V E  max depending on whether the previous value of V E  was less than or greater than the reference voltage. Details of the unit 13 are given, Fig. 8 (not shown), and of unit 4, Fig. 9 (not shown).
Patent GB-329892-A (GB)
Title: Improvements in adjustable curbs
IPC: F24B1/198
Filed: 1929-07-09
Abstract: 329,892. Woodall, H. R., Woodall, W. E., and Woodall & Sons, Ltd., I. July 9, 1929. Curbs.-In an extensible curb of the kind comprising a centre portion formed of two sides c', c<2> spaced by a centre block d, which also forms a stop for the inward movements of the L-shaped end sections a, b sliding in the centre section, the outward movements of the end sections are limited by co-operating stops f, g formed respectively on each end of the inner face of one of the sides c<1>, c<2> and the ends of the end sections. Specification 314,223 is referred to.
Patent GB-400377-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60J7/185
Filed: 1932-07-26
Abstract: 400,377. Friction grips. PERANNE, J. B. A. E., 6B, Station Parade, Kingsbury Road, Kingsbury, and EGGLETON, I. E., (trading as HARP ENGINEERING CO.), Harp Works, Stanley Road, Hendon, both in London. July 26, 1932, No. 21082. [Class 44.] Gripping means for retaining in any position a sliding hatch or panel of a vehicle roof comprises two spring-controlled rods 8 guided on a baseplate 1 and pivoted at their outer ends 13 to levers 10 which are of the shape shown and adapted to engage the side channel guides of the sliding panel. The levers 10 may be provided with a pin 15 and a hook part 14 adapted when the rods 8 move inwardly under the stress of the springs to grip the upper flange of the channel guides. Double cams 5 arranged on a spindle 4 at the centre are adapted by means of a knob 6 to press the levers 8 outwardly to release the fastening. Or the pin 15 may be replaced by a hook part 16, Fig. 5, which engages a flange on the channel guide which flange extends inwardly. Vibration &c. of the vehicle tends to effect a firmer fastening under the stress of the springs.
Patent GB-1125748-A (GB)
Title: System for the transmission and registration of telephone charges
IPC: H04M15/04
Filed: 1966-05-12
Abstract: 1,125,748. Automatic exchange systems. J. C. LAVENIRE and J. AGASSE. 12 May, 1966 [13 May, 1965], No. 21195/66. Heading H4K. In a metering system in which charges accummulated and temporarily stored at one switching centre are trasmitted to a main centre along with the identity of the debited subscriber, the main centre has storage compartments allocated to each subscriber and also has overflow storage space for those subscribers who may swell their account beyond the capacity of the compartment. The overflow spaces are allotted for use sequentially and the first occuring overflow causes the subscriber's address to be written in the allotted overflow space to indicate that his storage compartment has cycled once, the next overflow space being held ready for the next overflow that may occur. If all spaces are filled a punched tape record is made. Data sent to the main centre may be repeated if error checks indicate a fault; an alarm operates if the reapet is unsuccessful. If a subscriber's class-of-service so requires, the charge data can be put onto perforated tape directly at the main centre. The charge data is read out to perforated tape for account making. If the sequencing at the main centre goes astray the charge data can be buffered on perforated tape until the sequencing is restored when the perforated tape is read back into the system.
Patent GB-450056-A (GB)
Title: Improvements in and relating to cigarette and cigar holders
IPC: A24F13/10
Filed: 1935-07-26
Abstract: 450,056. Cigar and cigarette holders. DUNHILL, Ltd., A., and DUNHILL, V., 137, High Street, Notting Hill Gate, London. July 26, 1935, No. 21284. [Class 130] In cigarette or cigar holders of the type comprising a mouthpiece 3 relatively movable with respect to a holder-part 4 for ejecting the stub, a filter in the form of a wad 6 of absorbent cotton, paper, &c. is detachably fitted in a socket 5 on the end of the stem and is tightly held so as to remain in position when the stub is ejected. The parts 3, 4 may have a screw-threaded connection.
Patent GB-979802-A (GB)
Title: Keyed oscillator
Inventor: HAZONI YOHONATHAN
IPC: H03M1/00
Filed: 1961-06-13
Abstract: 979, 802. Electronic counting apparatus; electric selective signalling systems. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 13,1961 [June 13, 1960], No. 21339/61. Headings G4A and G4H. [Also in Divisions H3 and H4] An oscillator comprises a tunnel diode 11 (Fig. 4) in the emitter circuit of a transistor 10 with adjustable base bias and is keyed on by pulses c of variable duration applied to the base. Inductance or capacitance in parallel with the tunnel diode may adjust its oscillation frequency. The output oscillations may be counted, after limiting, as a measure of the input pulse duration c by applying them through capacitors C i ... c n  to the collector circuits of a number of parallel connected normally blocked tunnel diode oscillators D 1 ... Dn so that each in turn is keyed on by successive pulses and due to resistors R 01 ... R 0n  connecting the collector circuits, each in turn is prepared, by alteration of its collector operating voltage, for energization by a succeeding pulse. The last oscillator D n  renders operative a normally blocked tunnel diode oscillator D 0 , T so that a pulse from its collector circuit to all the common electrodes of the oscillators D 1 ... D n  again restores them to their initial blocked condition and the cycle recommences. The last oscillator operated is stored indication of the count, The system may measure the energy of atomic particles after conversion into pulses of variable amplitude applied through a rectifier 9 (Fig. 3) to charge a capacitor 8 for a duration determined by the discharge rate of the capacitor 8 through transistor 1 (as well as the amplitude of the input pulse), and terminating when a series connected second transistor 2, blocked by the pulse, is again rendered conductive, the resulting variable duration keying the oscillator N.
Patent GB-244506-A (GB)
Title: Improvements relating to treatment of natural base exchange zeolite-like materials
IPC: C01B33/46
Filed: 1924-09-10
Abstract: Natural base-exchange materials such as glauconite or greensand are subjected to the peptizing and selective action of a column of peptizing liquid such as a faintly alkaline solution, which may be a caustic soda solution, rising at a uniform speed which is such as to separate the finer constituents such as clay.  A number of columns may be used in succession, the speed or upward flow increasing through the series.  The raw mass may be soaked in the solution before the grading treatment is applied.ALSO:Natural base-exchange materials such as glauconite or greensand are subjected to the peptising and selective action of a column of peptising liquid such as a faintly alkaline solution, which may be a caustic soda solution, rising at a uniform speed which is such as to separate the finer constituents such as clay. A number of columns may be used in succession, the speed of upward flow increasing through the series. The raw mass may be soaked in the solution before the grading treatment is applied.
Patent GB-695171-A (GB)
Title: The antibiotic fumagillin
Filed: 1951-09-11
Abstract: An antibiotic Fumagillin having anti-bacteriophage activity is obtained by growing under aerobic conditions Aspergillus fumigatus H-3 (N.R.R.L. 2319), in an aqueous medium containing a soluble carbohydrate, e.g. dextrin, a source of assimilable nitrogen, e.g. corn steep solids, mineral salts, e.g. sodium chloride and calcium carbonate at a pH of 6 to 8 and a temperature of 20 DEG  to 35 DEG C. for 36 to 72 hours.  The Fumagillin may be isolated by adding a filter aid to the fermentation mash and filtering off the mycelium. The filtrate is defatted with hexane and then extracted with chloroform.  The chloroform is removed, the residue dissolved in acetone, concentrated in vacuo, cooled and the separated solid washed with tertiary butanol and finally recrystallized from 50 per cent methanol.  Fumagillin is a white, crystalline solid carboxylic acid of approximate formula C27H37O6, melting-point 190-191 DEG  C., [a ]D25= -26.6 (C=0.25 per cent in methanol); does not give a ferric chloride or Millon's test; infra red and ultra-violet spectra are characteristic; methyl ester melting-point 145-147 DEG  C.; octabromide melting-point 118-122 DEG  C.; amide chars 160 DEG  C.; 2,4-dinitrophenyl hydrazone melting-point 123-126 DEG  C.  The methyl ester is prepared by adding excess of diazomethane in ether to a solution of Fumagillin in benzene, cooling to 5 DEG  C. and crystallizing from methanol.  The octabromide is obtained by adding a solution of bromine in carbon tetrachloride to a solution of Fumagillin in a mixture of chloroform and carbon tetrachloride, removing the solvents and crystallizing from methanol.  For the 2,4-dinitrophenyl hydrazone, 2,4-dinitrophenylhydrazine is added to an ethanol solution of Fumagillin.
Patent GB-831487-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B04B1/08
Filed: 1956-07-11
Abstract: 831,487. Centrifugal separators. RUF, W. July 11, 1956 [Aug. 8, 1955; March 29, 1956], No. 21418/56. Class 23 A rotary clarifier having a vertical axis has an inlet 17 which dips into the liquid in a supply tank 1. The clarifier rotates about bearings 12 and is directly driven by an electric motor 6, the motor being connected to the clarifier shaft 8 by a flexible coupling 9. A stationary shield 20 surrounds the inlet which is associated with a propeller 16, a screw 22 and a centrifugal pump 18. Clarified liquid passes through outlets 15 into a rotary chamber above the clarifying chamber, and is removed from the rotary chamber by skimming tubes 24.
Patent GB-196850-A (GB)
Title: Improvements in lightweight built up pistons & gudgeon pins of steam and internal combustion engines, compressors, pumps & the like
IPC: F02F3/00
Filed: 1922-08-05
Abstract: 196,850. Guiard, A. J. J. Aug. 5, 1922. Drawings to Specification. Joint-making packing.-In a piston comprising a separate head secured in a cylindrical skirt, the periphery of the head is grooved. The grooves may contain oil or other packing material.
Patent GB-1347869-A (GB)
Title: Methods of and devices for constructing holograms
IPC: G03H1/00
Filed: 1971-04-19
Abstract: 1347869 Modulating light FUJITSU Ltd 19 April 1971 [10 Feb 1970] 21497/71 Heading H4F [Also in Division G2] Holograms for digital data storage, are made by exposing a recording medium 6 to a coherent reference light beam L 1  and a coherent object beam L 2  which passes a light modulator 4 and an array of converging lenses 5. The light modulator 4 may be a matrix of light switches, one for each lens of the array. Each light switch may incorporate an electro-optical crystalline material such as lithium tantalate for rotating the plane of polarization of the light and an analyser for passing or rejecting the light according to its plane of polarization. The record medium 6 may be either a photographic plate, or a reversible film such as a manganesebismuth thin film.
Patent GB-153716-A (GB)
Title: A new or improved device for closing doors, gates and the like
IPC: E05F1/10
Filed: 1919-09-02
Abstract: 153,716. Lee, C. Sept. 2, 1919. Operating doors and gates by springs.-An elastic or spring device for closing doors, gates, &c. comprises an endless rubber band a through the ends of which are secured bent wire members a<2> with loops a<1> for attachment to the door and frame respectively. The ends a<3> of the wire loops are positioned centrally, as shown, and covered when positioned with a sheet-metal roller to prevent their separation. Wire securing-clips b are bent round the band adjacent to the wire ends. In a modification, the ends of the wire loops are disposed externally of the band a. The loops a<1> may be permanently attached to the door or frame, or they may engage hooks secured to these members. An angle fixture f with a pin f' bent to engage one of the loop members, as shown in Fig. 7, may be used for attachment to the top of a door.
Patent GB-1015433-A (GB)
Title: Improvements in or relating to optical maser apparatus
IPC: H01S3/07
Filed: 1962-07-24
Abstract: 1,015,433. Cathode-ray tubes; discharge apparatus. LITTON INDUSTRIES Inc. July 24, 1962 [July 31, 1961; Jan. 8, 1962], No. 21538/65. Divided out of 1,015,431. Heading H1D. [Also in Division H3] A cathode-ray tube for exciting a laser includes a cylindrical cathode and a cylindrical anode having a different diameter, material being associated with the anode and having a tubular configuration such that, in operation, the'material emits light inwardly into the space defined by the anode. Laser active material is disposed within this space. As shown, screen 24, Fig. 1, is coated with an aluminized phosphor layer constituting the anode and a helical control grid is provided. Laser rod 28 is mounted coaxially with the electrodes and coolant may be passed between rod 28 and screen 24, or the space may form part of the vacuum chamber. A suitable coolant is liquid nitrogen which may be coloured to absorb all radiation except that from the phosphor. The phosphor may be a finely divided suspension in the coolant. In another arrangement, Fig. 6 (not shown), the laser rod is excited near the threshold for laser operation by a gas discharge tube surrounding the rod for most of its length, and a vacuum tube section similar to that shown in Fig. 1 surrounds the rest of the tube and is used for triggering laser action. The cathode is indirectly heated. In Fig. 7 a vacuum vessel has a transparent re-entrant portion 216 (Fig. 8, not shown) containing the laser rod and surrounded by a metal anode having a phosphor coating 202. A cathode 232, accelerating electrode 234, and coil 236 cause electrons to travel in helical paths before impinging on the phosphor layer. Cooling systems are provided for the anode and for the laser rod.
Patent GB-205614-A (GB)
Title: Improvements in combination dry and steam heating apparatus
IPC: A61C13/14
Filed: 1922-08-08
Abstract: 205,614. Brims, J. A. Aug. 8, 1922. Disinfecting-chambers.-In apparatus for vulcanizing, sterilizing, and other heating purposes, of the type comprising a boiler and a heating chamber connected therewith in which either dry or wet heating may be carried out, the heating- chamber B has a number of compartments B' closed by doors B<5>, B<6> and surrounded by steam passages B<3> leading by a pipe E to a tank D, which supplies the boiler A and in which the steam is condensed. The steam enters the passages B<3> through perforations C in the roof of the boiler and is admitted to the chambers B<1> when required through valves F<1> in pipes F. Air is allowed to circulate through the chambers by pipes G open to the atmosphere and leading to the bottom of the chambers, being discharged through perforations B<7> in the door B<6>. Condensed water in the chambers B<1> passes to the boiler through a pipe H, and the level of the water in the boiler is maintained constant by a valve J<3>, which is located at the base of a tube J connecting the boiler and tank D and is mounted on a rod J<4> carrying a float K at its upper end. The float K is also connected by levers to a shaft K<3> having an arm K<4> adapted to press upon the rubber gas pipe K<5> or otherwise regulate the flow of gas, oil or electricity for heating the boiler, so that in the event of a shortage of water in the tank D, the heating is reduced or cut off. A tap L may be fitted to the boiler and a drain cock M to the tank D.
Patent GB-1153256-A (GB)
Title: Improved Circular Knitting Machine
Inventor: FORRESTER JOHN STEWART
IPC: D04B35/10
Filed: 1967-05-10
Abstract: 1,153,256. Knitting-machines. WILDT MELLOR BROMLEY Ltd. 29 April, 1968 [10 May, 1967], No. 21614/67. Heading D1C. A yarn float controller is provided in a cylinder - and - dial machine and comprises a spring loaded element 10 having a recessed head 11 which is normally positioned adjacent the needles near a yarn feed. In the event of a yarn missing the neeedles the controller head 11. engages the yarn and holds it correctly positioned to enable it to be taken by the following needles. Should it be desired to remove the controller to enable changes to be made for example, a pattern change deflection of the element 10 sideways releases it to enable it to be withdrawn under the influence of a spring 12. The controller may also be used as a detector of faulty needles and for this purpose electrical contacts 24, 23 are provided which when engaged after the element 10 has been released as the result of engaging a faulty needle serve to operate a stop-motion and effect stoppage of the machine. A notch 19 is formed in the side of the element 10 and by engaging the slot 19 in a slate 17 on the bottom of a housing 15 for the element the element 8 is retained in a projected position until deflected and retracted.
Patent GB-279979-A (GB)
Title: Improvements in the manufacture of wire spoked wheels and apparatus therefor
IPC: B60B31/02
Filed: 1926-09-02
Abstract: 279,979. Dunlop Rubber Co., Ltd., and Corbett, J. W. Sept. 2, 1926. Wheel - building apparatus. - To facilitate building-up a wire-spoked wheel a template bearing guide lines is used. The rim and hub may be mounted in a jig as shown in Fig. 1, and a plate 8 marked with lines corresponding with the spokes in the first zone is mounted within the wheel, the rim being held in the correct place by a hinge peg C adapted to enter the valve hole. After the first zone of spokes has been loosely assembled, another template may be substituted or differently-coloured lines on the first template may be used as guides for arranging the second zone of spokes and so on. The wheel may finally be placed in a gripping frame 12, 13 wherein the spokes may be uniform. ly tensioned.
Patent GB-781526-A (GB)
Title: Improvements in phenothiazine derivatives and their preparation
Filed: 1955-07-27
Abstract: The invention comprises compounds of the general formula <FORM:0781526/IV (a)/1> wherein X is an oxygen or sulphur atom and R1 and R1 are the same or different lower alkyl (i.e. of 1 to 5 carbon atoms) or cycloalkyl radicals.  Such compounds are obtained by reacting phenothiazine with an appropriately substituted carbamyl or thiocarbamyl chloride.  Preferably the reaction is effected in the presence of an acid acceptor, e.g. alkali metal carbonates, bicarbonates, hydroxides or amides, and of a heavy metal catalyst, e.g. copper, zinc, silver, cadmium or mercury, under reflux conditions in an organic solvent and/or an organic base, although the reactants may be melted together without solvent.  In Example (1) phenothiazine and diethylcarbamyl chloride are refluxed in benzene in the presence of sodium carbonate and copper powder to give 10 - (diethylcarbamyl) - phenothiazine.  Similarly obtained are (2) 10-(diethylthiocarbamyl)-phenothiazine; (3) 10-(dimethylcarbamyl)-phenothiazine. 10-(Dicyclohexylthiocarbamyl)-phenothiazine and 10-(dicyclohexylcarbamyl)-phenothiazine can be prepared similarly.
Patent GB-1400892-A (GB)
Title: Contact lens
IPC: C08K5/00
Filed: 1973-05-07
Abstract: 1400892 Coloured contact lenses TANABE SEIYAKU CO Ltd 7 May 1973 [8 May 1972] 21711/73 Heading C3P A coloured contact lens formed from a methacrylic polymer material is produced by copolymerizing at least one methacrylic ester with at least one reactive dyestuff having a substituent of the formula wherein R is hydrogen or methyl; A is - NHCO-, -OCO-, -O-, -NH(CH 2 )n<SP>1</SP>- wherein the interger n<SP>1</SP> is from 1 to 4, or a group of the formula wherein X is -NH-, -NHCH 2 - or -CONH-, Y is -COO- or -NHCO-, R<SP>1</SP> is hydrogen or carboxy and m and m<SP>1</SP> are 0 or 1; and n is 0 or 1, on the nucleus of an anthraquinone, xanthene, triphenylmethane or azo dye, or a salt thereof, moulding the resulting methacrylic polymer material and polishing the product. In the examples ethylene glycol monomethacrylate, ethylene glycol dimethacrylate, sodium 1 -amino-4-(3-vinylphenylamino) - 9,10 - anthraquinone - 2 - sulphonate, methyl methacrylate, methacrylic acid, 1 - amino - 4 - (3 - acryloylamidophenylamino)- 9,10-anthraquinone, diglycol monomethacrylate, diglycol dimethacrylate, 1-(o-tolylazo)-2 naphthol acrylate, triethylene glycol monomethacrylate, 3<SP>11</SP>-vinyl-malachite green, 4 - methacryloylamidorhodamine B, 1 - (pphenylaminophenylazo) - 3 - (m - vinylphenylaminocarbonyl) - 2 - naphthol, sodium 1 amino - 4 - vinyloxyethylamino - 9,10 - anthraquinone - 2 - sulphonate, 1 - methacryloylamidoanthraquinone, 1 -methacryloylamido-4- aminoanthraquinone, 1 -amino-4-(3-methacryloylamidophenylamino) - 9,10 - anthraquinone, 1 - (o - tolylazo) - naphthylmethacryloylamide and 4-vinylbenzoylamido-rhodamine are copolymerized in the presence of ammonium persulphate, water, α,α<SP>1</SP>-azobisisobutyronitrile, polymethyl methacrylate and potassium persulphate.