baber/WOPTO huggingface dataset:
Patent GB-990266-A (GB)
Title: Improvements relating to hydrocarbon separation processes
IPC: C10G25/03
Filed: 1962-06-27
Abstract: Normal hydrocarbons are separated from a C6-containing petroleum fraction boiling in the C6-C12 range by an isobaric, isothermal, vapour phase process at a temperature of 250-400 DEG  C. which comprises (a) contacting said fraction with a 5<\>rA molecular seive to adsorb normal hydrocarbons, (b) purging the sieve, (c) desorbing the seive with n-pentane and (d) flushing the sieve.  The process is preferably conducted at 50-150 p.s.i.g. using nitrogen as the purge and flushing gas. Nitrogen may also be admitted during the adsorption stage. Examples illustrate the effect of step (d) in greatly improving the yield of n-hydrocarbons when repetitive cycles of operation are employed, compared with similar processes omitting step (d), and show also that for given temperatures there are corresponding pressures giving maximum yield of n-hydrocarbon. Specification 944,441 is referred to.ALSO:Normal hydrocarbons are separated from a C6-containing petroleum fraction boiling in the C6-C12 range by an isobaric, isothermal, vapour phase process at a temperature of 250-400  DEG C. which comprises (a) contacting said fraction with a 5  molecular sieve to adsorb normal hydrocarbons, (b) purging the sieve, (c) desorbing the sieve with n-pentane, and (d) flushing the sieve.  The process is preferably conducted at 50-150 p.s.i.g. using nitrogen as the purge and flushing gas.  Nitrogen may also be admitted during the adsorption stage.  Examples illustrate the effect of step (d) in greatly improving the yield of n-hydrocarbons when repetitive cycles of operation are employed, compared with similar processes omitting step (d) and show also that for given temperatures there are corresponding pressures giving maximum yield of n-hydrocarbon.  Specification 944,441 is referred to.
Patent GB-847655-A (GB)
Title: Pesticidal compositions comprising dithiophosphoric acid derivatives
IPC: C07F9/165
Filed: 1956-08-13
Abstract: Products of the general formula:  <FORM:0847655/IV(b)/1> in which R1, R2, R3 and R4 are aliphatic, cycloaliphatic or aromatic hydrocarbon radicals or substituted derivatives thereof and at least one of the radicals is different from the others and which are used as active ingredients of pesticidal compounds (see Group VI) are obtained by reacting a mixture of alcohol and/or phenols with phosphorus pentasulphide to give a mixed phosphorodithioate or mixture of phosphorodithioates and then oxidising the latter, e.g. with nitrous acid, nitric acid, chromic acid, oxides of nitrogen such as are produced by the action of a strong mineral acid, e.g. sulphuric acid on an alkali metal nitrite, hydrogen peroxide, chlorine, or a metallic persulphate.  Several mixtures of alcohol and/or phenols which may be used are specified including mixtures of ethanol (or methanol) and allyl alcohol, isopropanol (or ethanol) and 4-chloro-phenol, methanol and cyclohexanol, methanol and 2, 2, 2-trichloroethanol, isopropanol and 2-butanol, n-propanol and 2-chloroethanol, and ethanol (or isopropanol) and tetrahydrofurfuryl alcohol.ALSO:A pesticidal composition comprises as active ingredient a compound having the general formula:  <FORM:0847655/VI/1> wherein R1, R2, R3 and R4 are aliphatic, cycloaliphatic, or aromatic hydrocarbon radical which may be substituted and at least one of the radicals is different from the others (see Group IV(b)) together with an inert pesticidal adjuvant as defined below as carrier therefor. The pesticidal adjuvant may be any conventional carrier such as Attaclay, silica, kaolin clay, talc or calcium carbonate but does not include a mineral lubricating oil.  Wetting or emulsifying agents may be present in the composition, specified wetting agents being sodium liguosulphonates, sodium alkynaphthalene sulphonates, sodium sulphated fatty acid esters, and sodium lauryl sulphate. The composition may also be in the form of a bait which may be obtained by mixing the active ingredient with a mixture of cornmeal and sugar. A large number of active ingredients of the defined type are specified including those in which the radicals R1 to R4 are derived from a mixture of ethanol (methanol or isopropanol) with allyl alcohol, isopropanol (or ethanol) and 4-chlorophenol, methanol and cyclohexanol, methanol and 2,2,2-trichloroethanol, isopropanol and 2-butanol, n-propanol and 2-chloroethanol, and ethanol (or isopropanol) and tetrahydrofurfuryl alcohol.
Patent GB-1005422-A (GB)
Title: Method and means for photoelectric measuring
IPC: G01J1/26
Filed: 1962-06-27
Abstract: 1,005,422. Temperature coefficient correction in photo-electric measurements. LKBPRODUKTER A.B. June 27, 1962 [June 29,1961], No. 24706/62. Drawings to Specification. Heading G1A. In photo-electric measurements involving the use of at least two photo-electric cells, the cells being identical but being arranged to be influenced by different ranges of wavelength of radiation, it is found that the cells exhibit different variations in sensitivity with the variations in temperature. Where the signals from the two cells are combined, e.g. differentially, elimination of the effects of temperature variation is not therefore obtained. It has been found, however, that substantially identical sensitivity versus temperature characteristics can be obtained by arranging for different intensities of radiation to impinge each cell dependent on the wavelength ranges involved. In carrying out the invention, this is effected by including a suitable grey filter in the radiation path to each cell, the densities of the filters being selected to obtain the desired equal temperature coefficients as a preliminary step before actual measurements are made. Furthermore, the cells are mounted, e.g. on a common high conductivity plate, so that all obtain approximately the same temperature. The invention is stated to be of application in connection with measurements on radiation sources but is described in detail only as applied to an apparatus for making absorption measurements on fluids, Fig. 1 (not shown). Radiation from a lamp housing is directed over four paths to four photo-electric cells, one comprising a reference cell and the remaining three comprising measuring cells. In the radiation path to each measuring cell there is provided a transparent tube (positioned between two slots) which contains or is traversed by fluid on which the absorption measurements are to be made. Each radiation path also includes a colour filter, that in the path to the reference cell being chosen either to include the wavelengths allotted to the measuring cells or a wavelength approximately centrally of the range allotted to the measuring cells. In accordance with the invention each radiation path also includes a grey filter arranged to adjust the radiation intensity so that the cells exhibit substantially identical temperature dependent characteristics. The cells are also mounted on a common plate of aluminium or silicon-aluminium so as to equalize their temperatures. Measurements are made by comparing the outputs from two cells, either two measuring cells or one measuring cell and the reference cell, in a conventional motor-driven potentiometer recorder. Reference is made to the use of adjustable interference wedges for the colour filters and adjustable grey wedges. It is also stated that the method of the invention may be employed to correct for differences in cell temperature characteristics due to values of electrical loads connected to the cells.
Patent GB-894532-A (GB)
Title: Acoustic generator
IPC: G10K5/02
Filed: 1960-07-15
Abstract: Foaming in chemical reactions is reduced by the use of a whistle (see Group XXXVIII].ALSO:Foaming during the production of antibiotics, especially penicillin, is reduced by the use of a whistle (see Group XXXVIII).
Patent GB-1120514-A (GB)
Title: Sealant composition
IPC: C08G18/10
Filed: 1966-06-02
Abstract: A polyurethane sealant composition having a Shore A hardness when cured of at least 10 comprises a polyurethane prepolymer having at least an average of 1 1/2 isocyanate end groups for moisture curing action and as a thixotropic agent, acetylene black.  The composition may also contain a filler and/or a fungicide.  Preferred prepolymers are triol based prepolymers and especially those which have been reacted with a hydroxyl group-containing epoxy resin so that they contain both terminal isocyanate and epoxy groups.  Suitable fillers are calcium carbonate, silica, talc, wollastonite and glass, whilst the fungicide may be zinc oxide, phenolic compounds or polychlorinated polyphenyls. The acetylene black is preferably added in amounts of 5 to 10% by weight of the total composition.
Patent GB-299359-A (GB)
Title: Gas cells for rigid airships
IPC: B64B1/62
Filed: 1928-08-28
Abstract: 299,359. Goodyear-Zeppelin Corporation, (Assignees of Liebert, H. R. and Schoettel, E.). Oct. 24, 1927, [Convention date]. Aerostats.-A rigid airship has gas cells 12, 22 arranged between the main frame rings 11 and partially surrounding other gas cells 15, 23, at a higher pressure, symmetrically connected to the inner circumference of each frame ring. The two series of cells are separated by mesh bulkheads 13, 25 or the fabric of the inner cells may be strengthened to act as bulkheads. The bulkheads may be connected together axially as at 16 or 17, the outer cells having an opening or sleeve to surround the connection. The inner cells are maintained at a higher pressure than the outer cells by blowers 26 discharging through conduits 28, valves 29 on the inner cells discharging through orifices 32 into the outer cells when the pressure exceeds a predetermined amount. Pressure relief valves 37 are provided in the outer cells. The cells 23 may be divided into two portions by a flexible partition 33, one portion containing a fuel gas. Helium may be used in the outer cells.
Patent GB-518615-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/64
Filed: 1938-08-23
Abstract: 518,615. Television receivers. KOLSTERBRANDES, Ltd., SMYTH, C. N., and TILLER, P. A. Aug. 23, 1938. No. 24798. [Class 40 (iii)] A blind or shutter is arranged between the screen of the cathode-ray tube and the front face of the cabinet to obscure the screen when the tube is not in operation. The blind may be controlled by a manually operated member which also operates a switch controlling the vision reception. The blind E moves vertically on wheels F along the rails G and is supported by a cord P passing over a pulley O which is turned by a knob H through the clutch J. The latter is kept engaged by a spring L and frictional brakes M to hold the screen in its adjusted position. Specification 518,616 is referred to.
Patent GB-368250-A (GB)
Title: Improvements relating to display stands
IPC: A47F5/11
Filed: 1930-08-20
Abstract: 368,250. Display stands. PAINE, W. J., 47, St. Georges Road, Palmers Green, London. Aug. 20, 1930, No. 24874. [Class 3 (ii).] A display stand is built up of a number of plates, discs or sheets of standard forms attached together by posts or pivots passing therethrough so as to form a laminar block or blocks on the sides or edges of which light articles can be supported. According to the nature of the article to be displayed various stands can be built up from such standard forms by mounting them on a common post or pivot and spacing some of the blocks or plates apart as desired. As shown in Fig. 1, the plates a are connected by extensible posts or split tubes passing through holes b. In a modification the holes b are replaced by slots. Metal strips may be inserted in slots j in the plates so as to connect them to plates of different shapes, while the edges of shelves, supported in bridge-like fashion by two blocks, may engage in the slots or if the blocks are arranged so that the slots are vertical, showcards &c. may be supported therein. In a modification, Fig. 7, bent wires or strips k may be inserted in the slots j to support overhanging portions of the plates a. As shown in Fig. 4, a number of plates or blocks are mounted in spaced relation on a post f which may be connected to the post f<1> of another stand by a clip g.
Patent GB-483130-A (GB)
Title: Improvements in or relating to valves for steam and other fluids
IPC: F16K1/42
Filed: 1937-09-13
Abstract: 483,130. Valve closures. GRAINGER, J. E., and CRAIG, G. W. Sept. 13, 1937, No. 24880. [Class 135] A valve closure of the kind in which the valve member has an annular seating face and a hollow cylindrical ported extension forming a piston valve or sleeve sliding in or upon a cylindrical guide, has the guide formed as a removable sleeve. This sleeve 3 has an annular seat 4 at one end and an internal flange adjacent this seat closely fitting the cylindrical part of the valve, and an annular cavity in the sleeve extending over an area of the sleeve equal at least to half that of the cylindrical valve member. The sleeve may have a second flange 3b at the bottom so that any gritty matter entrained in the fluid is delivered to the centre of the hollow valve and is thus able to pass through the ports.
Patent GB-487561-A (GB)
Title: Improvements in strap and buckle fastenings
IPC: A44B11/26
Filed: 1937-09-13
Abstract: 487,561. Straps &c. BRIGHTEN, F. Sept. 13, 1937, No. 24893. [Class 109] The end of a strap 1 for use with a prongless buckle 4 is made with a flat projection 2 on the face which lies against the bar 3 of the buckle, to act as a stop and prevent accidental disengagement.
Patent GB-335687-A (GB)
IPC: C02F5/08
Filed: 1929-08-15
Abstract: 335,687. Groeck Wasserveredlung Ges., (Assignees of Groech, H.). Nov. 22, 1928, [Convention date]. Incrustation, preventing.-In order to prevent the incrustation of pipes, the water is treated with acids or acid salts in the presence of a substance such as calcium carbonate, which is adapted to neutralize the excess of acid and is insoluble or only sparingly soluble. An example is given in which lactic acid is used.
Patent GB-225662-A (GB)
Title: An improved method of carving stone by sand-blast
IPC: B24C1/04
Filed: 1923-10-08
Abstract: 225,662. Scantlebury, F. H. Oct. 8, 1923. Sand-blast.-In carving stone by sand-blast, the surface 11 to be carved is coated with a permanently flexible compressible adhesive material, for example comprising glue, glycerine, litharge, and a preservative, which is reduced to a liquid state and poured on to the surface, a dam 10 having been placed previously around the edges of the surface. When the coating is set, the design to be carved, for example a letter, Fig. 6, is placed on the coating which is then sprayed or otherwise covered with whitewash or whitening. The letter &c. is then removed and the design is cut through the coating, parts then being removed to expose the parts of the surface of the stone that are to be sand-blasted. Or the whole surface of the coating may be sprayed with the whitewash, and the design cut through the coating. After sandblasting, the remaining portions of the coating are stripped off. The design may be cut to different depths in different parts by removing successively portions of the coating and sandblasting the whole of the exposed surface after each removal. Specification 137,303 is referred to.
Patent GB-448417-A (GB)
Title: Improvements in or relating to apparatus for generating and applying ultra-short electro-magnetic waves
Filed: 1934-08-31
Abstract: The Specification as open to inspection under Sect. 91 contains the subject-matter of Specification 448,494, [Group XXXVI].  This subject-matter does not appear in the Specification as accepted.
Patent GB-670673-A (GB)
Title: Improvements in optical pyrometers of the disappearing filament type
IPC: G01J5/56
Filed: 1949-09-30
Abstract: 670,673. Optical pyrometers. SCHOFIELD, F. H. Sept. 25, 1950 [Sept. 30, 1949], No. 25098/49. Class 97 (iii). A pyrometer of the type in which the brightness of the filament of an electric lamp is adjusted to match the brightness of the object whose temperature is to be measured comprises associated in one unit an electric battery M, Fig. 1, showing a nearly constant E.M.F. throughout its life, an electric lamp L forming one arm of a Wheatstone bridge which is in balance for a chosen brightness or temperature. of the filament, and a rheostat whose contact F moves over a scale N calibrated in terms of the temperature of the filament, the scale being provided with a fiducial mark corresponding with the balance position of the bridge. Connection of a galvanometer at GG is thus only necessary from time to time to check the constancy of the battery. If the balance position of the rheostat contact has departed slightly from the fiducial point, the scale N is adjusted accordingly; considerable departure indicates that the battery should be replaced. In the arrangement shown in Fig. 2, the brightness of the object is reduced to that of the filament by an optical wedge and to cover the whole temperature range the lamp L is run at one of three standard brightnesses represented by coincidence of the rheostat contact E with points A<SP>1</SP> B<SP>1</SP>, C<SP>1</SP> on scale N such that on connecting a galvanometer to corresponding points A, B, C in the bridge no deflection is shown, so long as the voltage of the battery M remains constant. In the arrangement of Fig. 1, calibration of the rheostat may be effected by providing two terminals in a part of the bridge system, the resistance between which is suitably calculated and connecting across them a millivoltmeter calibrated in terms of temperature for a particular type of thermocouple, as described in Specification 601,940. The arrangement may be such that calibration is exact at two given temperatures and approximate between and beyond these points. In the arrangement shown in Fig. 5, instead of employing a Wheatstone bridge, the lamp L, battery M and rheostat are connected in circuit with a resistance u such that on connecting across it a galvanometer G with a standard cell T in series therewith, balance is obtained for a standard temperature of the filament corresponding to coincidence of contact E with a fiducial mark on the scale N. The scale may be graduated in terms of temperature, or if an optical wedge is used, the scale may carry the fiducial mark only for use in checking. Where the battery shows variation of voltage according to the surrounding temperature, but is otherwise constant, this may be compensated for by a shunt or series resistance.
Patent GB-1006105-A (GB)
Title: Improved process and device for casting articles of refractory material
IPC: B28B1/54
Filed: 1962-06-29
Abstract: 1,006,105. Casting refractory materials. GLAVERBEL CO. Ltd. June 29, 1962 [July 4, 1961], No. 25118/62. Heading B5A. Refractory materials are cast using a pouring tube extending from outside a mould to within it and separate from the mould itself. Fig. 3 shows a pouring tube having a lower orifice 6, lateral feed orifices 10, supporting legs 5 and a stream breaking disc 9. Disc 9 is so spaced as to favour flow through orifices 10. The pouring tube may be of the same material as that being cast, or of a material weldable to the casting material. The disc 9 may be fusible at casting temperature. The pouring tube may be moved relative to the mould during casting, horizontally or obliquely.
Patent GB-695082-A (GB)
Title: Substituted phenoxyethanols and their manufacture and anti-parasitic compounds containing them
IPC: C07C29/00
Filed: 1951-10-29
Abstract: The invention comprises dimethylphenoxy ethanols of the formula <FORM:0695082/IV (b)/1> where X is either hydrogen or chlorine, and their preparation as described in the examples.  In examples (1) 3 : 5-dimethylphenol is treated with sulphuryl chloride to give 4-chloro-3 : 5-dimethylphenol which is reacted with ethylene chlorohydrin to give 4-chloro-3 : 5-dimethylphenoxyethanol; and (2) 3 : 5-dimethylphenol is reacted with ethylene chlorohydrin to give 3 : 5-dimethylphenoxyethanol.ALSO:Compositions for control of parasitic diseases in plants comprise aqueous solutions or suspensions containing 3 : 5-dimethylphenoxyethanol I and 4-chloro-3 : 5-dimethylphenoxyethanol II (see Group IV (b) for preparation). Preferably solutions containing 1 : 4,000 parts by weight of I or between 1 : 32,000 and 1 : 128,000 parts by weight of II are used. The use of the compounds in the treatment of parasitic diseases in tomatoes and carnations is described.
Patent GB-710436-A (GB)
Title: Improvements in or relating to lifting means for attachment to bedsteads
IPC: A61G7/10
Filed: 1951-10-29
Abstract: 710,436. Bedsteads. CRAWSHAW, A. A. July 23, 1952 [Oct. 29, 1951; Oct. 29, 1951; Oct. 29, 1951; Oct. 29, 1951], Nos. 25187/51, 25188/51, 25189/51 and 25190/51. Drawings to Specification. Class 52(2) A bed lift comprises a pair of brackets attachable to the bed frame and each having vertical sockets to accommodate a post. The pair of posts have inwardly projecting spigots at the top to enter the - ends of a horizontal tubular bar. This bar is clamped to the spigots at positions according to the distance apart of the posts so permitting the bed lift to be applied to beds of varying width. A swingable jib may be mounted on one end of the posts the jib being provided with adjustable lifting tackle operated by cable and pulleys on the post.
Patent GB-467258-A (GB)
Title: A process for the selective disintegration of coarse or more or less coarse material
IPC: B03B1/00
Filed: 1935-09-11
Abstract: A process for the selective disintegration of ores such as Callmuth ore &c. in which portions of different nature and hardness are intergrown and, for example, the valuable part, in particular the pure ore, is the less resistive, in a grinding drum having a jacket perforated in the manner of a sieve is characterized by the fact that the process is carried out with the drum filled to such a depth that when rotated at the usual circumferential velocity a frictional action and a spearing striking action of the hard coarse parts falling on the layer of material takes place.  Grinding bodies may be added to the material and the size of the perforations in the drum may be changed.  The mill may run in water in its lowest part.