baber/WOPTO huggingface dataset:
Patent GB-326434-A (GB)
Title: Improvements in apparatus for the filtration of motor spirit and the like and the separation of water therefrom
IPC: B01D35/00
Filed: 1929-08-13
Abstract: 326,434. Pisani, M. Feb. 20, 1929, [Convention date]. Filters having sheet filtering -materials; funnel filters.-A funnel filter for motor spirit and the like comprises a number of concentric gauze elements c supported beneath a bell b in a funnel a in such manner that liquid rises between the bell and the outer element, filters successively through the elements, and is discharged through the funnel outlet tube k. The elements are held in position at the lower end by a grooved cap d and at the upper end by a grooved disc e connected to a cap f fixed to a hand-wheel g, which is itself fixed to the bell b. The bell is provided with a threaded flange l which engages with a threaded ring m supported in the funnel by arms n, the arrangement being such that, when the wheel g is turned, the bell and filters are raised and a valve ring g, fixed to the bell, is lifted from a circular seating p in a partition o and allows the passage of liquid from the compartment r shove the partition to the filters. A short pipe i which is attached to the cap d rests in the outlet pipe k of the funnel and serves as a guide when the moving parts are raised. Water and other impurities separating from the spirit fall and pass through apertures t into a short outer funnel a' which has an outlet valve w and cleansing plug v. The presence of water in the funnel a<1> is indicated by the position of the upper end of a rod 3 attached to a float 2 in a central pipe y which is in communication with the funnel a<1> through a transverse pipe x.
Patent GB-225523-A (GB)
Title: Improvements in the manufacture of lithopone
IPC: C09C1/06
Filed: 1924-10-17
Abstract: 225,523. Farbenfabriken vorm. F. Bayer & Co. Nov. 30, 1923, [Convention date]. Pigments.-To render lithopone fast to light, it is given a small content of a heavy metal compound or compounds (other than zinc compounds) such as salts or double salts of iron, cobalt, nickel and copper. The metallic compound may be introduced into the precipitated or dried lithopone, before or after ignition, or the raw zinc lyes to be used in the manufacture may be so purified as to leave small amounts of the desired metallic compound in them after purification. Alternatively, the metallic compound may be added to the zinc lyes before or after purification. A suitable addition of heavy metal compound is such that its metal content is 0.02-5 per cent of the zinc content.
Patent GB-387737-A (GB)
Title: Improvements in the construction of lead chambers for the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1931-09-03
Abstract: Assemblies of lead chambers for the manufacture of sulphuric acid comprise a plurality of individual chambers, which have relatively great height and width but small breadth and a <PICT:0387737/III/1> <PICT:0387737/III/2> ratio of surface area of the walls in square metres to volume in cubic metres up to but not exceeding 1,2 to 1, communicating with each other in series at their base by relatively short passageways having a narrow vertical cross section and a wide horizontal cross section which extends over the whole width of the chamber.  The gases proceeding through the chambers and undergoing reaction circulate as shown in Fig. 7, passing up the centre of each chamber and descending near the walls, the stream of gas 2 which descends along the front wall being prevented from impeding the ascending stream 1 by being sent through ducts.  These may be formed by pairs of small walls 6, 6 (Figs. 7 and 9) extending from the front of the chamber to the centre thereof and a covering slab 7 which bridges the gap between the central portion of the walls. Instead of the provision of ducts or in addition thereto as shown in Fig. 9, partitions may be provided which split up the communicating passageways and form interruptions 7a in the entering stream through which the descending stream 2 may pass. Ten or more individual chambers may be thus assembled.  Atomizers or the like for introducing water in a finely divided state are provided at the top of the chambers.  The whole of the production of acid flows via the base communications in a direction opposite to that of the flow of gases therein, being drawn off from the chamber at which the gases enter.
Patent GB-1347394-A (GB)
Title: Process for manufacturing crystalline silicon carbide whiskers
Inventor: KIMURA I
IPC: C30B25/00
Filed: 1971-04-19
Abstract: 1347394 Silicon carbide whiskers KANEBO Ltd 19 April 1971 [27 March 1970 (2) 16 April 1970] 24803/71 Heading C1A Crystalline silicon carbide whiskers are prepared by heating a reaction mixture comprising a silicon-containing inorganic material and a material containing halogen and carbon which consists of a halogenated hydrocarbon, containing at least 5% by weight halogen, or a mixture of a hydrocarbon and a chlorine-containing material selected from chlorine, hydrogen chloride, tetrachloromethane or phosgene at a temperature not lower than 800 C. in the substantial absence of oxygen and nitrogen gases. It is permissible to preheat the reaction system or components of such at 100 C. or higher. The forming reaction may be effected under atmospheric or elevated pressure. Hydrogen gas may be fed into the reactor as a carrier gas for controlling the flow rate.
Patent GB-302951-A (GB)
Title: Improvements in or relating to adjustable brackets and supports for shelves and other fittings
IPC: A47B57/04
Filed: 1927-09-21
Abstract: 302,951. Offord, W. F., Offord, L. W., and Windle, B. C. W. Sept. 21, 1927. Clip brackets, adjusting and securing.-A supporting device for glass and other shelves comprises a member A on which the shelf B is held by a rubber-faced clamping stud C, and a bracket J to which the member A is hinged at D, adjustable means, such as the screw L being provided between the members A, J. The bracket J may be formed with a spigot adapted to engage a stationary socket (Fig. 1, not shown); it may be formed with a forked end adapted to be clamped to another shelf (Fig. 2, not shown); or it may be formed as a runner, Fig. 3, having a tooth adapted to engage any one of a number of notches in an arm K that is adjustably pivoted at D<1> to a member A<1> clamped to a shelf B<1>. Specifications 6003/90, 164,452, and 167,302 are referred to.
Patent GB-715874-A (GB)
Title: A tablet for use in treating peptic ulcers
Inventor: BRITTON RONALD HUGH WYLSHER
IPC: A61K9/20
Filed: 1952-10-03
Abstract: A tablet for use in treating peptic ulcers comprises 1/2 to 12 parts by weight of dried milk mixed with 1 part by weight of antacid material, the mixture being pressed into a tablet which when sucked by the patient will dissolve in the saliva and pass into the stomach in small amounts to produce a continuous neutralization of the acid in the gastric juice.  The milk is full cream whole milk, defatted whole milk or malted milk, to which may be added (a) up to 10 per cent casein or calcium caseinate or the enzymatic digest of lactalbumin and (b) up to 2 per cent of one or more of sodium bicarbonate, potassium bicarbonate and sodium chloride.  Specified antacids are magnesium trisilicate, dried aluminium hydroxide gel, magnesium oxide, magnesium carbonate and calcium carbonate. Preferred tablets contain 0.1 to 0.5 per cent oil of peppermint and malted milk.  The malted milk is prepared by mixing 1 part by weight of dried full cream whole milk with 1 to 6 parts by weight of maltose and dextrins produced by the enzymatic reaction of 1 to 3 parts by weight of malted barley with 3 to 1 parts by weight of a cereal flour such as of wheat or of barley.  Tablets are of 5 to 70 grains, and preferably 48 grains weight and 0.25 to 1.5 inches diameter.  Tablets of the desired characteristics are obtained by an initial tabletting at a pressure of 13 to 16, and preferably 15, tons per sq. inch, followed by granulation of the so produced tablets and then tabletting of the hard granules so formed at a pressure of 8 to 15, and preferably 12, tons per sq. inch.
Patent GB-164996-A (GB)
Title: Improvements in coffee pots
IPC: A47J31/02
Filed: 1920-08-30
Abstract: 164,996. Bruning, W. H. Aug. 30, 1920. jugs.-A coffee-pot fitted with a percolator is provided with air and hot-water jackets for keeping the various portions hot. The infusion is received in a tapering vessel 9 surrounded by a cylindrical outer vessel or jug 11, the space between the two being filled with hot water through a funnel 13 provided with a partition 16, to prevent spilling during pouring. The lid 31 is made double, with a conical portion 32 to fit into the upper portion of the pot, and a curved rim 33 to fit on to the curled-over edge 29 of the lower portion when the upper portion is removed.
Patent GB-509728-A (GB)
Title: Improvements in apparatus for maintaining and controlling liquid levels
IPC: G05D9/12
Filed: 1938-08-25
Abstract: 509,728. Automatic control systems. STANDARD OIL DEVELOPMENT CO. Aug. 25, 1938, No. 25047. Convention date, Dec. 27, 1937. [Class 38 (iv)] Fluid level.-The position of the interface between two substantially immiscible fluids having dissimilar electrical resistivities is maintained by means of a pair of electric contacts close together in the fluid at the level desired and a valve electrically operated in response to the variations in electrical resistance between the contacts occurring with change in interface level. The contacts may be in a side arm connected to the fluid container or in an outwardly extending portion of its wall; they may consist of the ends of units sealed through a glass side arm 1/16 of an inch apart, parallel wires close together, or the points of a sparking plug. Fig. 1, shows a system for controlling the level of the interface between two fluid phases (one of which may be a gas) such as the raffinate and extract phases in a solvent treating process comprising a continuous counter-current tower 1 in which, say, phenol is introduced at 2 at the top of the tower and oil at 3 at the bottom. Side arms 7 or containing contact pairs 9 are used according to the desired position of the interface. The extract may be discharged intermittently through the solenoid valve 10 with a manual control valve at 5a. The valve solenoid is in circuit with relay contacts 19 which are operated by a winding L in the output circuit of a grid controlled rectifier 22 connected across the 120 volt winding of a transformer 16. A 24 volt winding supplies the grid circuit comprising resistance R2 and the resistance of fluid between the contacts 9, the grid being connected to that junction so that the contacts 19 close when the resistance at 9 falls sufficiently to stop the discharge in the rectifier. The resistance R2 may be adjustable and a condenser C may be shunted across the relay winding. High resistances may be placed in series with the contact points 9 and the grid 15 if desired. The valve may be actuated by a motor and to eliminate the hand controlled bye-pass 6 the motor may operate in steps. Two tubes such as 14 may be operated from separate pairs of contacts at different levels, these tubes causing opposite movements of the motor. Intermittent current application may be obtained by a time delay relay or a motor &c. driven tuning device in the anode circuit. By substituting an inductance or capacity for the resistance R2 and using parallel contacts of “ inch to several feet in length, motor valves may be operated to give a flow of fluid in accordance with the resistance between contacts 9.
Patent GB-1487573-A (GB)
Title: Video time base corrector
IPC: H04N9/898
Filed: 1974-06-06
Abstract: 1487573 Video time base correctors QUANTEL Ltd 22 May 1975 [6 June 1974] 25073/74 Headings H4F and H3A A time base corrector, of the type comprising a digital store and used for retiming a PAL television signal derived from a tape recorder, includes means for adjusting the chrominance component in accordance with a local sub -carrier reference frequency and with off-tape horizontal sync pulses prior to passing the signal to the store via an analog-digital converter, so that the colour sub-carrier frequency in the retimed signal bears the correct phase relationship to the horizontal and vertical scanning frequencies. As illustrated the input video signal, which has no exact relationship between the colour sub-carrier and the horizontal and vertical scanning frequency of the luminance signal because of mixing operations performed on the chrominance signal before and after recording, is applied to filter 30 and subtractor 31 to separate the luminance and chrominance components. The chrominance is passed via mixers 32, 33, which adjust it in accordance with the off-tape horizontal sync pulses and the local sub-carrier reference, the adjusted signal being added (38) to the luminance component. The resulting composite signal passes via an analog-digital converter 10 to retiming store 12, from which it passes to a digital-analog converter 20. The sub-carrier burst is separated (24) from the retimed signal, and successive bursts are averaged by a 1-line delay comb filter to remove line alternation, the resulting burst being compared (25) with the local reference sub-carrier to provide a control signal to oscillator 41. The output of oscillator 41 is mixed (32) with the chrominance component, the mixer output feeding the second mixer 33 where it is mixed with a signal from a third mixer 42. Mixer 42 receives a signal derived (43) from oscillator 41 and a signal derived (44) from an oscillator (14) triggered by horizontal sync pulses separated (34) from the off-tape signal. Converter 10 is clocked by oscillator 14, and converter 20 by an oscillator 17 phase locked (40, 18) to local reference horizontal sync. pulses. The retimed signal from the digital-analog converter 20 passes to the output of the system via a unit 23 which reblanks the signal and inserts clean horizontal sync and burst signals.
Patent GB-671693-A (GB)
Title: Improvements in and relating to spectacles
IPC: G02C1/08
Filed: 1949-09-30
Abstract: 671,693. Spectacle frames. JAMESON, Ltd., W., and JAMESON, W. May 2, 1950 [Sept. 30, 1949], No. 25120/49. Class 97 (i). A hinge member to which a corresponding hinge on the end of a temple arm can be pivoted, is carried by a housing having a recess in which lugs carried by the ends of a split rim, or a lug carried by an undivided rim, are detachably secured by a screw. As shown, the housing 3 carrying hinge arms 3c, Fig. 5, which may be rebated at 3d, has a recess 4, Fig. 1, open at the bottom, into which the lugs 2, 2a are slid and held by a screw 5 engaging a tapped hole 4a in the housing. The housing has a channel or rebated portion 3a to engage the edge of the lens to assist in clamping the housing thereto. Alternatively the screw may pass through the members in the opposite direction or the recess 4 may enter the housing from the top. A space 4b between the back of the recess and the lug 2 allows the split rim to be adjusted slightly to accommodate lenses of different sizes. An undivided rim is provided with a single lug to engage the housing. The rims or housing, or both, may be of metal or plastic, the arrangement permitting of removing the temples without disturbing the rims.
Patent GB-741998-A (GB)
Title: Improvements in or relating to apparatus for burning liquid fuel in a ducted gas stream
Inventor: SPALDING DUDLEY BRIAN
IPC: F23D11/10
Filed: 1952-10-07
Abstract: 741,998 Vapour burners. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 6, 1953 [Oct. 7, 1952], No. 25153/52. Addition to 696,757. Class 75(1). [Also in Groups XII and XXVI] The apparatus for burning liquid fuel in a ducted stream of combustion supporting gas, forming the subject of the parent Specification, is modified in that a plurality of vaporizer bodies are arranged across the duct in a common imaginary surface, the relative dispositions of the bodies and the side walls of the duct being such that the total effective width per body of the zone at which flame propagation commences is greater than the total projected width of each of the several bodies and the effective free air space around it on a plane normal to the axis of the duct on the upstream side of the bodies so that the effective increase in width of the duct available for gas flow downstream of the vaporizer bodies is equally distributed between all the bodies to permit stable flame formation at each body. As illustrated in Fig. 1 vertical vaporizer rods 1 are disposed in a cylindrical formation in a divergent part 5 of the high velocity gas duct 2. The effective flow width of the substantially cylindrical zone 6 at which flame propagation commences is thus greater than the cross-sectional projected width XY of rods 1 and the gaps therebetween in a plane 8 normal to the.axis of the duct 2. The ends of the rods 1 may be mounted on chains or similar linkages passing through slots in the divergent side walls of the duct, so that the number of rods utilized may be varied and thus the radius of curvature of the cylindrical formation. In an alternative construction the vaporizer rods are of curved transverse section and serve as baffles for directing the gas stream through an angle of the duct. Fig. 5 illustrates a further construction in which baffles 12 are located between the vaporizer rods 1 to restrict the gaps for the gas flow, whilst providing for lateral expansion of the flames. The fuel may be fed to each rod 1 from a tank 14, Fig. 6, by a drip feed 13, the unburnt fuel being collected in a trough 15 and returned to the tank 14 through the air bleed pipe 16. A part 16a of the latter is disposed so as to be heated by the combustion whereby the return of excess fuel is facilitated. Alternatively the fuel may be fed from the tank 14 to a manifold 19, Fig. 9, to pass to each rod 1 through a metering orifice 20 and a pipe 18 into which fits a substantially rectangular tang 17 at the upper end of the rod 1. The pipe 18 has an air bleed hole 21 above the orifice 20. To avoid erratic fuel feed, turbulence in the gas flow around the upper end of the rod 1 is reduced by providing, immediately downstream thereof, a slope in the roof of the duct or an inclined baffle.
Patent GB-1152021-A (GB)
Title: Dehydrohalogenation Process
IPC: C07C17/25
Filed: 1966-06-06
Abstract: 1,152,021. Dehydrohalogenation process. PULLMAN Inc. 6 June, 1966 [30 Aug., 1965], No. 25191/66. Heading C2C. [Also in Division C5] A polyhalohydrocarbon having a saturated halohydrocarbon group and optionally hydroxyl substitution is dehydrohalogenated by reacting it at a temperature of at least 50‹ C. in the presence of an alumino-silicate catalyst having a pore size of at least 6A, the pores being formed by a 12-membered ring; and an inert diluent for the polyhalohydrocarbon having a molecular dimension larger than the pore opening of the catalyst and larger than a molecular dimension of the polyhalohydrocarbon. The reaction may be carried out at sub-atmospheric or superatmospheric pressure, in vapour or liquid phase, with the polyhalohydrocarbon diluted to between 10 and 50 mole per cent. Examples relate to dehydrohalogenation of 1,2-dichloro-ethane using Na and Ca faujasites and H-mordenite; of 1,1-dichloroethane using Na faujasite; and of 1,4 - dichlorobutane; 1,2 - dichloropropane; 1,1 - difluoroethane, 1,1,1 - trichloroethane, all using Na faujasite. Other polyhalohydrocarbons are mentioned. Acetaldehyde is produced as a by-product in the dehydrogenation of 1,1-difluoroethane.
Patent GB-1429755-A (GB)
Title: Fire-arms
IPC: F41A9/85
Filed: 1974-06-06
Abstract: 1429755 Ammunition; magazines IN DUSTRIE - WERKE KARLSRUHE AUGSBURG AG 6 June 1974 [8 June 1973] 25221/74 Headings F3C and F3A A magazine 4 for a drum 3 of a firearm 1 has bores 4a, each bore 4a being provided with a charge-receiving portion and with a projectilereceiving bush 8. The magazine, which may be of synthetic plastics material, has channels 4b therein, each of which connects a respective charge-receiving portion to a respective detonator chamber, and recesses 4d which, when the magazine is mounted in the drum 3 of the firearm, receives bars 3c of the firearm therein. The latter has barrels 2, 2a and 2b which are sealed by the respective bushes 8 and has a pivotally-mounted portion 3a which serves to close the drum 3 and to support a butt (not shown). The magazine contains charges 5, projectiles 7 and detonators 6 therein.
Patent GB-322734-A (GB)
Title: An improved process for obtaining valuable gases
Filed: 1928-09-03
Abstract: 322,734. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 3, 1928. Hydrocarbons in general; pentane, propane, butane.-The products from the destructive hydrogenation under pressure of coal, tars, mineral oils, &c. are condensed under pressure and separated into various constituents by fractional release of pressure. The hydrogen first obtained my be purified from hydrocarbons by thermal decomposition or by treatment with steam, carbon dioxide, &c. in the presence of catalysts such as iron or nickel at 500‹-1200‹ C. and again employed in the hydrogenation process. The pentane, propane, butane, &c. produced by further release of pressure may be isolated by compression or strong cooling. Solvents or absorbents may also be employed for the further separation of the reaction products. The hydrogen may also be washed to remove hydrogen sulphide and hydrocarbons. In an example the gas is passed through a highpressure tower filled with Raschig rings against a counter-current of middle oil which is used in a continuous cycle and may be subjected to fractional release of pressure. Specification 272,538, [Class 32, Distilling &c.], is referred to.
Patent GB-1386985-A (GB)
Title: Electronic apparatus for setting and checking the electronic yarn clearers
IPC: D01H13/22
Filed: 1972-05-30
Abstract: 1386985 Yarn clearer systems; electronic control LOEPFE BROS LTD 30 May 1972 [27 May 1971] 25309/72 Headings D1F and D1J [Also in Division Gl]  In a yarn clearer system a running yarn is passed through a sensing head including a contactless yarn sensor e.g. photoelectrical sensor and a sensing signal is produced which is fed to a signal processing means 1. The signal processing means 1 includes at least one controllable processing channel e.g. double-yarn channel C, nap channel N or yarn diameter channel D. The signal fed to the control channel is amplified and fed to a threshold discriminating means, and when the fed signal reaches the threshold level of the discriminator means, a signal is sent to actuate a yarn severing means 4. An electronic checking and setting apparatus 2 is provided which includes a controllable d.c. amplifying channel which exactly duplicates the amplification of any signal fed to the signal processing means 1. An indicator 8 receives the output of the said controllable amplifying channel and in setting the apparatus, a full scale reading is given when the threshold level of the discriminating means is reached, therefore a full scale reading is reached every time a severing signal occurs. The signal processing means 1 and electronic checking means 2 are preferably mounted as a single unit on a base plate 11 with a sensing means 4, 5, a bobbin holder 12, a draw-off means 14 and yarn guides 21. The electronic checking means 2 is provided with a signal level compensating means to compensate for the constant base signal of the sensing signal. In setting, for example, the double-yarn channel C, a switch in the checking means 2 is set to receive signals from the control channel corresponding to the channel C. A control yarn 18 is drawn through the apparatus but without passing through the sensing head 4, 5. A push-button OS is actuated to hold in the compensating means until the indicating device shows zero reading whereupon the button OS is released. The yarn 18 is then passed through the sensing head whereupon a positive reading on indicator 8 is given. The channel C is then adjusted in processor 1 until the indicator gives a 70% full scale reading; under these conditions the 70% reading indicates the mean diameter of a yarn and the full scale reading corresponds to a yarn with a crosssectional area twice that of the mean crosssectional area.