baber/WOPTO huggingface dataset:
Patent GB-660963-A (GB)
Title: A closure device for containers
IPC: B65D45/02
Filed: 1949-09-06
Abstract: 660,963. Stoppers. RUETZ, J. Sept. 6, 1949 [Oct. 23, 1948], No. 23115/49. Class 125(iii) A closure for a container having a bead 2 of rectangular section around the top of the container includes a sliding member 7 having inturned flanges 8 guided along the under face of the bead and which, in the closed position, at least partially covers the closure member proper 9. The latter is provided with tail pieces 11 in the form of downwardly-extending ramps 9<SP>1</SP>, and another ramp 5 with a stop 6 is provided on the top of the container. The closure proper, which is packed with cork clad with metal foil, seats on a frusto-conical bead 4 around the mouth 3 of the container. On moving the member 7 to the right, when the ends 7b of the flanges 8 contact the ramps 9<SP>1</SP> at the points 9a the closure 9 is somewhat tilted in the direction of the arrow A. On further movement of member 7 the ends 7b of the flanges 8 engage in recesses 9b in the ramps 9<SP>1</SP> and the two members 7, 9 travel together, the member 9 riding up the ramp 5 to uncover the mouth completely until the motion of both members is halted by the stop 6. Movement of the member 7 in the reverse direction reseats the closure member 9 on the bead 4.
Patent GB-480359-A (GB)
Title: Improvements in collapsible display stands
IPC: A47F5/11
Filed: 1936-08-22
Abstract: 480,359. Collapsable display stands. SESSIONS, Ltd., W., and SCOTT, J. E. Aug. 22, 1936, No. 23119. [Class 3 (ii)] A collapsable display stand comprises a hexagonal base A with a platform 7 hinged to its front wall 5 and secured at its rear edge by a tongue 8 engaging in a slot 9 in the rear wall 2 of the base. This wall 2 together with adjacent walls 1, 3, are extended to form a background 2a with wings 1a, 3a. The platform may be permanently secured to the wall 2 and scored at 11 so as to fold upon itself when the stand is collapsed, and may slope downwards towards its front edge. In a modification in which the stand is formed from two blanks, the platform is formed with two spaced V-shaped " fences " between which an article is supported.
Patent GB-168888-A (GB)
Title: Portable apparatus for generating poisonous gases
IPC: A01M13/00
Filed: 1921-08-31
Abstract: 168,888. Meter, J. W. van. Aug. 31, 1920, [Convention date]. Vapours, producing by chemical action; vaporizing by combustion.-A portable apparatus for generating poisonous gases more particularly for fumigation and for insect and animal extermination, comprises a chlorine container 7 provided with main and control valves 8, 9 respectively and from which the gas is passed through a flexible pipe 10 to a reaction-chamber 11 enclosing a cartridge A adapted to be punctured when within the chamber and charged with suitable chemicals such as a mixture of potassium cyanide and arsenic or metal filings if cyanogen chloride is to be produced; the gas is delivered through a nipple 23 in its cover 15. The device for puncturing the cartridge consists of a pin 28 supported by discs 29, 30 perforated to allow the passage of gas and resting on a rib 33 at the bottom of the chamber so as not to obstruct the inlet 13; the pin 28 is reduced in diameter at the part below the point so as to allow a free passage for the entry of gas into the cartridge, and between the discs 29, 30 is a moistened sponge &c. 36 for humidifying the gas. The walls 27 of the cartridge are of paper, pulp or other combustible material, and the base and cap of light metal such as tin; the cap is screwthreaded to engage a recess in the cover 15 of the combustion chamber, and in order to obviate the escape of poisonous chemicals the cartridge is opened only when it is inserted in the chamber, the base by the puncturing-pin 28 and the cover by the provision of a metal-foil inset 40 which overlies a disc of tin 43 covering the apertures 42 and which is ruptured by the pressure of gas within the cartridge. The chlorine cylinder 7 is suspended from a weighing-machine 4 carried by a collapsable stand 3, and when in use the amount of chlorine consumed is indicated by the weighing- machine 4; and the combustible parts of the cartridge are consumed by the heat generated by the reaction.
Patent GB-613414-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H5/02
Filed: 1944-11-22
Abstract: 613,414. Electrical musical instruments. COMPTON ORGAN CO., Ltd., J., and BOURN, L. E. A. Nov. 22, 1944, No. 23207. [Class 88 (ii)] In a musical instrument having electrostatic generators, the generators feed the output through electronic valves which are rendered conducting selectively as required. In the embodiment shown in the Figure, twelve generator discs comprising the notes of an octave carry wave-form rings of a series of octaves of four basic tones, string, reed, diapason and flute. Each generator ring 4 is connected to the control grid of an individual amplifying valve 7, which is normally biassed to cut-off by a battery 13 and the scanning grid 3 is polarized by a battery 5. One bus-bar 19 is provided for each stop and is selectively polarized by a battery 27 through a variable swell resistance 30 and stop resistance 31, the latter determining the loudness of the tone. Key traces 20, when operated, close contacts 21 on all the bus-bars appropriate to the keyboard and thereby apply a positive potential to the grid of the valve 7 to render it operative. The passage of current from one bus-bar to another associated with the same generator is prevented by rectifiers 25, and resistances 24 determine the strength of any particular partial. The condenser 17 is provided to minimize key clicks and in a modification, Fig. 2 (not shown), a condenser and rectifier arrangement is fitted between resistances 14 and 15 to provide a gradual dying away of the tone. In a further embodiment, Fig. 3 (not shown), there is one generator structure for each key and each of these provides pure waveforms of the fundamental and ten harmonics. In this case there is only one amplifying valve for each such structure and this is cut off except when the appropriate key is depressed. In this case mixing of the harmonics is done by selective switching by the stops. Specifications 403,444 and 433,050 are referred to.
Patent GB-1187210-A (GB)
Title: Radiation Source Capsule
IPC: G21G4/06
Filed: 1967-05-18
Abstract: 1,187,210. Radiation source capsule. INDUSTRIAL NUCLEONICS CORP. 18 May, 1967 [2 June, 1966], No. 23240/67. Heading H5R. A radiation source capsule 10 comprises a supporting shell 12 e.g. of stainless steel, having a radiation transmitting window 15 and forming a chamber in which a particulate radio isotope bearing material 20 is positioned so as to emit radiation through the window, a backer member 35 being positioned in the shell, with a deformable and conformable barrier member 40 which is non-porous in respect of the particulate radioisotope bearing material positioned between the backer member and the particulate material in direct contact with the latter, said barrier 40 filling the space between the backer means and the particulate material for confining said material and preventing its contacting the backer member. Preferably the barrier 40 comprises a foil having edge portions in wiping contact with the shell. The material 20 preferably includes a radioactive material and a particulate bulking material, the barrier 40 being in contact with that surface of the radioactive material 20 which faces away from the window. The capsule preferably includes a sealing plug 50 fitted in the shell so as to be spaced from the backer means said space 35 forming a gas reservoir, the backer means co-operating with the shell and the barrier so as to permit passage of gas between the particulate radio isotope bearing material and the reservoir. The radioisotope material preferably includes the Americium 241 isotope. The backer means may include a passageway for venting gas to the gas reservoir which passageway, Fig. 3 (not shown), may be blocked by a seal which is rupturable to permit gas to pass to the reservoir at elevated temperatures.
Patent GB-347294-A (GB)
Title: Improvements in and connected with ships' and other similar telegraphic apparatus
IPC: G08B9/00
Filed: 1930-04-29
Abstract: 347,294. Electric signalling systems. CHADBURN'S (SHIP) TELEGRAPH CO., Ltd. and BAMFORD, A. C., Cyprus Works, Bootle, Lancashire. April 29, 1930, No. 23277/29. [Class 40 (i).] In a ship's telegraph or similar apparatus the receiver, Fig. 5, is provided with a circular arrangement of contacts 39 adapted to be engaged by contacts 40 on a metal contactor 42 formed with a gap 42', the arrangement being such that when the gap has been made to register with the order indication corresponding to the order received, the lamps 34 associated with that order are extinguished and audible alarms operative upon the initiation of the order are rendered silent. Each order in the receiver is indicated by the illumination of two lamps 34 arranged in parallel, each pair of lamps being in circuit with a contact 39. The contact 39x is connected to a line leading to the negative terminal of a source of current at the transmitter, through a relay which controls the operation of the audible alarms. The transmitter, Fig. 1, adapted for operation in connection with both a " port " and " starboard " engine, comprises a case 1 provided with opaque dials 3 indicating the orders to be transmitted, and operating handles 5 secured to spindles 4. Each spindle carries an arm 16 provided with contacts 13, 14, for engagement, respectively, with stationary contacts 11 and a ring 12. Each contact 11 is connected to a pair of lamps 34 at the receiver, and the ring 12 is connected to the positive terminal of a source of current. The spindle 4 is also provided with a toothed wheel 20 adapted to be engaged by oppositely-disposed spring-pressed rollers so that the handle 5 is held by spring pressure in the selected position.
Patent GB-642867-A (GB)
Title: Improvements in dry cells
IPC: H01M6/48
Filed: 1948-09-03
Abstract: 642,867. Primary batteries. FAIRWEATHER, H. G. C. (Olin Industries, Inc.). Sept. 3, 1948, No. 23278. [Class 53] Each cell of a battery consists of an insulating tray 1 having an opening 4 in the bottom through which the anode of one cell makes contact with the cathode of the adjacent cell, the meeting faces of the anode and cathode being cemented together with a conducting cement. As shown in Fig. 1 the anode consists of a zinc plate 8 coated with cement 9, the cathode of each cell consisting of a strip 14 of cloth or other flexible material impregnated with a carbon paint and coated with cement 16. The zinc plate 8 rests on a flange 7 in the tray 1, the strip 14 being pressed into a recess on the lower side of the flange and forced into the opening 4 to make contact with the zinc plate. A depolarizing cake 13 is in contact with the positive electrode 14. A sheet 10 of blotting paper or other fibrous material covered with a paste electrolyte rests on the zinc plate 8 above which is the depolarizing cake 13 and positive electrode 14 which makes contact with the zinc plate of the superimposed cell. The trays 1 may be made of a synthetic resin and the conductive cement which connects the positive and negative electrodes together may consist of graphite or acetylene black dispersed in a mixture of methyl ketone and toluene containing a thermoplastic cement such as a conductive rubber composition formed of natural rubber or a synthetic elastomer. The carbon paint may be of similar composition. A stack of cells is placed under compression and dipped into a solvent for the material of the trays and allowed to dry. A terminal is soldered to the zinc plate in the bottom tray and to protect the positive electrode 14 of the top cell it is covered with a metal plate held in position by pitch. A terminal is soldered to the metal plate. Specification 617,669 is referred to.
Patent GB-333048-A (GB)
Title: Improvements in or relating to the moistening of gases prior to purification by electrostatic deposition of dust
IPC: B03C3/014
Filed: 1929-07-29
Abstract: 333,048. Siemens - Schuckertwerke Akt.-Ges. June 1., 1929, [Convention date]. Gases, treating with steam.-Gases are treated prior to the electrostatic deposition of dust with steam produced by adding water to the products of combustion of a gas flame. Water is fed from nozzles 8 into the burnt gas from a burner 4, to which air is supplied through apertures 7. The steam produced passes into the gas duct 1 leading to the electrostatic dust separator, while unvaporized water collects in a receptacle 12 and is re-circulated to the nozzles 8. Purified gas or the gas under treatment may be burnt in the burner 4, which has a branch 15 leading some of the burnt gas into the electrostatic separator for flushing the insulators. Alternatively, a gas flame may burn within the mass of water to be evaporated, the water being supplied from a subsidiary cooler.
Patent GB-994575-A (GB)
Title: A single stage method of producing hot extracts
IPC: C12C3/08
Filed: 1961-06-27
Abstract: Hops are extracted by a mixture of organic solvent and ammoniacal water.  The latter may have 1/2 -1 litre NH3 per litre of water and the amount is preferably 10-40% by weight of the organic solvent. The organic solvent may be a mobile acetate (e.g. methyl acetate), an alcohol (e.g. methanol), and/or a lower aliphatic halohydrocarbon (methylene chloride or ethylene dichloride), a highly volatile ketone (e.g. acetone), or mixture thereof.  The extraction is preferably effected at about 20  DEG C., and the solvent mixture finally removed by evaporation with continual stirring at sub-atmospheric pressure, e.g. 0.8 atmosphere at about 50  DEG C.
Patent GB-1341996-A (GB)
Title: Clamping device for hollow cylindrical workpieces
IPC: B23B31/30
Filed: 1971-04-19
Abstract: 1341996 Clamping devices C W GEHRING 19 April 1971 [24 Jan 1970] 23423/71 Heading B3B  A clamping device for thin walled tubular workpieces comprises an annular housing 1 having on its inner periphery a plurality of axially spaced annular grooves 7 in which are located ring members 6. Within the bore 2 of the housing 1 is located clamping means in the form of a longitudinally split sleeve 3 which is axially located by screws 10 and against the outer surface of which the rings bear. The grooves 7 are interconnected by a conduit 8 within the housing whereby pressure fluid introduced at 9 affects a pressure on the rings to effect radial contraction of the sleeve 3 to grip a tubular workpiece located therein. In an alternative embodiment the sleeve 3 is omitted and each ring 6a bears against a gripping ring 3a within each respective groove 7a, the rings 3a constituting the clamping means and acting directly on the tubular workpiece. In the latter embodiment the housing is made up of a plurality of annular ring portions 16 with a cap ring 17 and whereby the length of the clamping device can be adjusted by increasing or decreasing the number of ring portions 16. Each gripping ring 3a and its groove 7a is provided with co-operating shoulders 20, 19 to control the radial displacement of the ring in the groove. In both embodiments described the clamping sleeve 3 or the rings 3a are formed from an elastic-rubber or plastics material such as T.F.E.
Patent GB-1476653-A (GB)
Title: Headphone set
IPC: H04R1/10
Filed: 1974-05-24
Abstract: 1476653 Receiver headband arrangement AKG AKUSTISCHE U KINO - GERATE GmbH 24 May 1974 [1 June 1973] 23470/74 Heading H4J A headset comprises a headband 6, Fig. 1, which in use bears via a central portion against the top of the user's head 1 and which is coupled to the respective earpieces 4, 5, by a connecting arrangement 7-10 which is resiliently deformable along the line of connection to permit adjustment of the length of the connecting arrangement for a predetermined range of head sizes, the connecting arrangement applying to its earpiece a vertical force at least equal to that of gravity on the earpiece and its cable. The headband may be resiliently flexible and inextensible, or the harness may comprise the combination of such a band with a flexible extensible band 12 (Fig. 2) the band 12 engaging a sliding coupling 18 coupling it to a metal frame 16 not in contact with the head; and to which is attached an earpiece coupling 15, the arrangement in use, applying inward pressure and introducing friction whereby the earpieces are retained in a placed position. The frame 16 may comprise two separate wires 24 between which a stud 21 attached to the extensible band, may slide, the stud being connected to the coupling 15 by an elastic loop 24 or a helical spring.
Patent GB-813856-A (GB)
Title: Improvements in or relating to a method of and means for defoaming liquids
IPC: B01F7/18
Filed: 1956-07-31
Abstract: A process for de-foaming liquids, e.g. coating compositions for paper, consists in submitting the liquid while under a vacuum to mechanical shearing action between relatively moving surfaces.  A cylindrical tank 1, Fig. 1, provided with a valved inlet pipe 4 and vacuum line 5, has stationary blades 18 mounted on the inner wall.  A central rotating shaft 6 is also provided with blades 19, which pass between and close to the fixed blades.  The distance between adjacent horizontal edges of fixed and moving blades is 0.1 to 0.5 inch.  The two sets of blades are preferably mounted tangential to the central shaft.  In operation, the liquid entering through pipe 4 falls on a splash plate 9, and fills the vessel to a level a little below the top rotor blades, determined by a constant level feed control.  A vacuum of 26 to 28 inches of mercury is maintained, and the liquid flows through the vessel at the rate of about 15 to 35 gallons per minute.  The central blades rotate at about 120 to 150 revolutions per minute.  Foam bubbles expand under the low pressure and are broken by the <PICT:0813856/III/1> shearing action of the blades. The de-foamed liquid passes to the cone-shaped base 10 of the vessel provided with a pair of blades 21, which are mounted close to the vessel wall and are inclined to sweep any solid materials downwards to a vertical screw conveyer 20.  The bubble-free product is drawn off through a pipe 15 by a pump 16.
Patent GB-378212-A (GB)
Title: Improvements in or relating to a circuit arrangement for the operation of electrostatic loudspeakers in connection with amplifying and rectifying arrangements
IPC: H04R19/02
Filed: 1931-08-24
Abstract: 378,212. Thermionic valves. VOGT, H., 17, Genthinerstrasse, Berlin. Aug. 24, 1931, No. 23714. [Class 39 (i).] An ordinary valve such as a triode amplifier or, as shown, a full-wave rectifier has an additional anode a<3>, mounted as far as possible from the other electrodes and providing the biassing voltage for an electrostatic loud-speaker.
Patent GB-759616-A (GB)
Title: Improvements in or relating to the preparation of steroid compounds
Inventor: ELKS JOSEPH
IPC: C07J75/00
Filed: 1953-08-28
Abstract: The invention comprises compounds of the formula <FORM:0759616/IV(a)/1> (where R is a hydroxyl group or an esterified hydroxyl group, and X is bromine), the preparation thereof and of compounds in which X is hydrogen by oxidizing the corresponding 11b -hydroxy compounds (preferably with chromium trioxide), and the preparation of 11-oxotigogenin and its 3-esters by dehalogenating the products so obtainable (e.g. by heating with zinc and a liquid aliphatic acid such as acetic acid).  The oxidation may be effected at 0-130 DEG  C. in a single-liquid phase system (e.g. by using chromic acid in acetic acid, preferably with the addition of a buffer such as sodium acetate, or in pyridine) or in a two-liquid phase system (e.g. by treating a solution of the chlorhydrin in benzene with a solution of chromic acid in aqueous acetic acid).  Examples describe the oxidation of 3b -acetoxy-23-bromo-12a -chloro-11b -hydroxy-5a -22a-spirostane to the corresponding 11-oxo compound, and the conversion of the product to 3b -acetoxy-11-oxo-5a -22a-spirostane.  Specification 759,615 is referred to.
Patent GB-999364-A (GB)
Title: Improvements in and relating to epoxy resins
IPC: C08G59/24
Filed: 1962-06-21
Abstract: A mixture containing 85-55% by wt. of the diepoxide of exo-dicyclopentadiene and 15-45% by wt. of the diepoxide of endo-dicyclopentadiene may be cured with one or more organic epoxide hardeners.  Lists of conventional hardeners are given and also of acidic and basic catalysts.  Preferred hardeners are polyols, polythiols, polycarboxylic acids or anhydrides, a polycarboxy polyester, a polyisocyanate, or a polyacyl halide. The mixture may be partially cured if desired with at least two hardeners, e.g. a polycarboxylic acid anhydride and a polyol, to a b -stage product with long shelf life.  The curable mixture or the partly cured products may be dissolved to give coating compositions.  In a modification of the invention, varnishes are prepared by reacting the diepoxide mixture, preferably in an inert organic liquid, with aliphatic monocarboxylic acids, or preferably unsaturated fatty acids.  The products may be drying or non-drying and are useful modifiers for coating resins, e.g. phenol-formaldehyde, melamine-formaldehyde or alkyls.  They may be used with conventional metallic driers. If desired the esterification may be preceded by a treatment with a polyol preferably in presence of an acidic catalyst. A number of examples are given.  In many of them mixed diepoxides according to the invention are cured with an anhydride, e.g. maleic or methyl nadic anhydride and a polyol, e.g. 1,1,1-trimethylolpropane or 1,2,6-hexane-triol. Other examples use a polycarboxylic acid hardener, e.g. adipic, succinic or phthalic acid.  In Examples 16, 17 the mixed diepoxides are esterified with e.g. dehydrated castor oil acid or soya bean oil acid and polymerized in a solvent with stannic chloride or boron fluoride diethyl ether as a catalyst to yield a varnish.  In Examples 24, 25 the mixed diepoxides, maleic anhydride and 1,1,1-trimethylol propane, styrene and if desired benzoyl peroxide are reacted together.ALSO:Curable coating compositions are based on a mixture of 85-55% by weight of the diepoxide exo-dicyclopentadiene and 15-45% by weight of the diepoxide of endo-dicyclopentadiene.  In Example 15, the mixed diepoxides are reacted with adipic acid, the product dissolved in methyl isobutyl ketone, and the solution used to coat by dipping an iron panel or strip, the coating being baked.  In Examples 16, 17 varnishes are prepared by esterifying and polymerizing in xylene the mixed diepoxides with dehydrated castor oil acid or soya bean oil acid and used to coat "Puberised" (Registered Trade Mark) steel panels by dipping.
Patent GB-1104334-A (GB)
Title: Improvements in or relating to egg cartons
IPC: D21J5/00
Filed: 1965-02-18
Abstract: 1,104,334. Egg boxes. DIAMOND INTERNATIONAL CORPORATION. 18 Feb., 1965 [18 March, 1964], No. 23931/67. Divided out of 1,104333. Heading B8P. In a pulp-moulded egg carton, comprising a lid portion 28 and an egg-receiving portion 18 containing cells 38 divided by separator ports 42, the upper portions 44, 46 of the separator ports are uniformly less thick and of a smaller weight per square inch than the rest of the carton. In this way, less material is used per carton and the denesting resistance of the carton is reduced.