baber/WOPTO huggingface dataset:
Patent GB-1504763-A (GB)
Title: Benzofuran and benzothiophene derivatives containing sulphonic groups and their use as brightening agents
IPC: D06L3/12
Filed: 1975-06-10
Abstract: 1504763 Benzofurans and benzothiophenes containing sulphonic acid groups CIBAGEIGY AG 10 June 1975 [12 June 1974 (2)] 24828/75 Heading C2C [Also in Division C3 and G2] Compounds of the formula wherein the rings A, B and C are optionally substituted with non - chromophoric substituents, X denotes oxygen or sulphur, M denotes hydrogen or a salt forming cation, D denotes a phenylene, 4,4<SP>1</SP>-biphenylene or naphthylene radical which is optionally substituted with non-chromophoric substituents, and n is 1 or 2, it being possible, when n is 2, for two adjacent substituents on ring A to form the completion of an indane or naphthalene ring which is optionally substituted with non- chromophoric substituents, may be prepared by reacting a compound of the formula in the presence of a strongly basic alkali metal compound in a polar, neutral to basic organic solvent, with an acid of the formula where Ar is an optionally substituted aromatic radical. Specified non-chromophoric substituents are C 1-4  alkyl, cyclohexyl, benzyl, α,α - dimethylbenzyl, phenyl, halogen, C 1-4  alkoxy, benzyloxy, phenoxy, C 1-4  alkylmercapto, sulpho or, in the case of two adjacent substituents, 1,3 - butadienylene, trimethylene or tetramethylene radicals, and specified saltforming cations are alkali and alkaline earth metal ions, NH 4 +, and amine salt ions. The reaction is suitably effected at 10-150 C. and specified solvents are dialkylamides of formic acid or phosphoric acid and tetra-(C 1-4 )alkyl urea; the strongly basic alkali metal compound is preferably an alkali metal alcoholate. The acid starting materials may be obtained by reacting an aldehyde with an appropriate aniline derivative, and the product may be reacted subsequently in situ. Amine salts may be obtained by converting an alkali metal salt of the sulphonic acid into the sulphochloride followed by saponification in the presence of the desired amine. The 2-phenyl-6-methylbenzofuran starting materials may be prepared by cyclization of the appropriate m-cresol ethers. Biphenyl-4-aldehyde-41-sulphonic acid potassium salt and 1-naphthaldehyde sulphonic acid are obtained by sulphonation of the corressponding aldehyde. The products may be used to optically brighten a wide range of organic materials and they may also be employed in cleansing compositions.
Patent GB-746863-A (GB)
Title: Improvements in or relating to a method of cleaning coal by a dense medium
IPC: B03B5/44
Filed: 1953-09-09
Abstract: A dense medium for the cleaning of coal comprises a dispersion of at least one of: pyrite, cinders, siderite cinders, other iron-bearing slag, limonite, hermatite, pyrrhotite and ferrosilicon having a S.G. 3,0-7,0 as particles in the size range 60-300 microns, and silt in particles of size 5-50 microns with a S.G. 2,1-2,7, the silt comprising 3-32 per cent by volume and the resultant medium having a specific gravity of 1,35-2,0.  A method of reconstituting the dense medium by screening-off the particles over 300 microns and classifying the remainder is disclosed with reference to a conventional sink-and-float process.
Patent GB-319319-A (GB)
Title: Improved constructional steel
IPC: C22C38/16
Filed: 1929-08-15
Abstract: 319,319. Krupp Akt.-Ges., F. Sept. 20, 1928, [Convention date]. Alloys.-Steel for constructional purposes contains up to about 0.4 per cent of carbon, 0.5 per cent of silicon, over 1.2 up to 2 per cent of manganese, and over 0.4 up to 0.8 per cent of copper, for example 0.2 per cent of carbon, 0.35 per cent of silicon, 1.6 per cent of manganese, and 0.45 per cent of copper.
Patent GB-1482047-A (GB)
Title: Bicyclohexane derivatives for use in the synthesis of prostaglandins
IPC: C07C67/00
Filed: 1975-06-11
Abstract: Novel, optically active bicyclic oxetanes of the following formulae <IMAGE> or a racemic mixture of these compounds and their enantiomers are prepared, in which the substituents are described in Claim 1. These compounds are obtained by introducing the side chain into an appropriate, optically active, bicyclohexene of the formula <IMAGE> or a racemic mixture of this compound and its enantiomers, by reaction with an aldehyde of the formula <IMAGE> The resulting novel compounds can be used for the preparation of prostaglandins.
Patent GB-319900-A (GB)
Title: Improvements in and relating to folders for matches
IPC: A24F27/12
Filed: 1928-08-31
Abstract: 319,900. Temple, B. S., and British Booklet Matches (1928), Ltd. Aug. 31, 1928. No Patent granted (Sealing fee not paid). Packing book matches .-The folder or casing for matches is formed from a sensitized surface or blank upon which advertizing matter is photographed.
Patent GB-221098-A (GB)
Title: Improvements in or relating to appliances for teaching swimming
IPC: A63B69/10
Filed: 1923-10-08
Abstract: 221,098. Chapman, H. J. Oct. 8, 1923. Swimming-appliances. - A device for use on land in teaching swimming, particularly the " crawl " stroke, comprises a frame having side members 1 connected by transverse members 2, 3 for supporting the chest and thighs respectively. These members may be padded and the latter is adjustable to suit pupils of different height. A transverse strap 6 adjustable along rails 7 is placed beneath the insteps to resist downward movement of the legs, and in use the insteps beat against the strap alternately. A box 15 slidable along rails 12 is adapted to give frictional resistance, which may be adjusted by weights 17 placed in the box, against rearward movement of the hands. A cord 19 tethered to a bar 13 passes over a pulley 20 on the front of the box, and over pulleys 10, 11 to the left hand, rearward movement of which slides the box forwards. A cord 23 tethered to a bar 18 passes over a pulley 25 on the rear of the box, and then over pulleys 26, 10, 11 to the right hand, rearward movement of which slides the box backwards. Pulleys 11 are adjustable transversely on a board 9. The cords end in swivel hooks to which may be secured devices to be gripped by or attached to the hands. The board 9 and rails 12 are secured by wing nuts so as to be removable. In use, the frame is supported horizontally on chairs, trestles, &c. or on legs secured to the frame.
Patent GB-1244559-A (GB)
Title: Implantable circulatory support system
IPC: A61M60/871
Filed: 1969-05-16
Abstract: 1,244,559. Rotary engines and pumps. UNITED STATES ATOMIC ENERGY COMMISSION. May 16, 1969 [June 10, 1968], No.25077/69. Heading F1F. [Also in Division A5] An implantable heart circulatory support apparatus (see Division A5) includes a rotary steam engine 18 which drives by a belt or gear and chain a rotary pump 28. A typical cylinder 134 in engine 18 has a power output shaft 136 at its centre on which is mounted for rotation therewith an eccentric rotor 138 which sweeps the inside surface of the cylinder closely with its point of greatest eccentricity. Slide valve 142 includes wheel 146 biased by spring 144 to provide a seal against the outer surface of rotor 138. Steam from a flash boiler 12 (see Division G6) enters the cylinder to the right of slide valve 142 as shown through rotary valve 148 driven from the shaft 136 and after expansion exhausts through manifold 152. Pump 28 is similar in construction. Shaft 156 rotates eccentric rotor 158 within cylinder 154. Water enters through ball-valve 164 and leaves under pressure through outlet manifold 166. Slide valve 168 functions similarly to slide valve 142 in engine 18. Both pump and engine are multicylinder to provide a uniform output.
Patent GB-480652-A (GB)
Title: An improvement in the carbonisation of pitch
IPC: C10B55/00
Filed: 1937-09-15
Abstract: 480,652. Materials for making coke. GROVES, W. W. (Otto & Co., Ges., Dr. C.) Sept. 15, 1937, No. 25106. [Class 55 (ii)] Granular pitch is moistened with water before its introduction into an externally heated chamber oven to obtain coke. Sufficient water is added to counteract the tendency of the pitch to flow when heated to a temperature above its softening point, such as 2 to 10 per cent by weight. A non-carbonizable substance, such as pitch coke or gas black may be mixed with the pitch.
Patent GB-283622-A (GB)
Title: Improvements in or relating to embossing and like presses
IPC: B44B5/00
Filed: 1926-10-09
Abstract: 283,622. Armstrong, H. W. Oct. 9, 1926. Embossing-machines. -An embossing or like press, more particularly for cutter-crush embossing, has the moving member 5 slidably mounted on a single solid member 8 at each end of the bed 6, and is raised through a number of cams 11 engaging rollers 13 housed within the underside of the member 5. For trimming the edges of the embossed card a graduated table is slidably mounted on the upper surface of the fixed member 7, which has a pivoted knife 15 secured thereto co-operating with the edge of the table. The fixed member is secured to the base 6 by bolts 9. The depth of impression is adjusted by inserting U- shaped packing pieces between the member 7 and the members 8 and adjusting the bolts 9. A spring-pressed plunger is mounted in a recess in the upper face of each member, so that when the bolts 9 are slightly loosened the member 7 is raised and the packing pieces can be removed. The cam-shaft 11 is operated by a lever 14, either directly or through multiplying or ratchet gearing, and in the former case may comprise a bar slidable in a radial hole in the shaft 11 and having its movement through the hole limited by stops which are provided with spring buffers or pads to prevent jarring. Specification 284,796 is referred to.
Patent GB-584211-A (GB)
Title: Improvements in or relating to dry cells
IPC: H01M6/06
Filed: 1944-12-14
Abstract: 584,211. Galvanic batteries. BURGESS BATTERY CO. Dec. 14, 1944, No. 25142. Convention date, Dec. 31, 1943. Drawings to Specification. [Class 53] The electrolyte of a dry cell consists of a solution of lithium chloride with or without other salts such as ammonium chloride and zinc chloride. The amount of lithium chloride may vary up to 45 parts by weight to 100 parts of water and the solution is absorbed in a layer of paper, gelatinized starch, etc. and in the depolarizer. The presence of lithium chloride in the electrolyte is stated to improve the performance of the cell at low temperatures.
Patent GB-683651-A (GB)
Title: Resistivity apparatus for obtaining indications of permeable formations traversed by a bore hole
IPC: G01V3/20
Filed: 1950-10-17
Abstract: 683,651. Electric indicating systems. SCHLUMBERGER OVERSEAS SOC. ANON. Oct. 17, 1950 [Oct. 18, 1949], No. 25283/50. Class 40 (i) [Also in Group XXXVI] Apparatus for determining the diameter of a bore hole 11 comprises a spring cage 13 mounted on a tubular support 10, suspended by a cable 12, and consisting of a plurality of bowed springs 14, 15 attached to a collar 16 at the upper end fixed to the tubular support 10, and to a connecting member 110 at the lower end carrying a rod 111 of magnetic material, which slides in a hole 114 in the bottom of the support 10, thereby altering the coupling between two windings, not shown, one of which is AC energized, the other being connected to a recording device 113. The springs 14, 15 are urged against the wall of the bore, and the position of the rod 111 inside the coupled windings is therefore dependent on the diameter of the bore, the degree of coupling, and therefore the diameter of the bore, being indicated by the recorder 113.
Patent GB-223924-A (GB)
Title: Improvements in and relating to induction motors and the like dynamo electric machines
IPC: H02K17/30
Filed: 1924-10-23
Abstract: 223,924. British Thomson-Houston Co., Ltd., (Assignees of Maxwell, H.). Oct. 24, 1923, [Convention date]. Alternating-current induction machines; conductors.-Motors of the squirrel-cage type have conductor slots in the rotor containing a highresistance winding and a low-resistance winding provided with common end-rings, the highresistance winding being permanently closed by the end rings, and means co-operating with the high-resistance winding to close the lowresistance winding gradually as the motor speeds up. The low resistance conductors 15 and the high-reistance conductors 14 are separated from each other in the slots by insulation 19, but are permanently connected at one end to a common end-ring 18. The conductors 14 are of elastic metal and their free ends are bent so that the outer conductors contact permanently with the end-ring 16 and the inner ones with an expansible ring 20 and together keep the free ends of the low-resistance bars 15 out of contact with the rings 16, 20 at low speeds. As the motor speeds up, centrifugal weights 21 mounted on a slidable pivot 22 expand the ring 20 which gradually presses the bars 15 into contact with the ring 16 through the resilient ends of the conductors 14.
Patent GB-502487-A (GB)
Title: Improvements in or relating to jet tube relays
IPC: F15C3/10
Filed: 1937-09-17
Abstract: 502,487. Fluid - pressure relays. ASKANIA - WERKE AKT. - GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU. Sept. 17, 1937, No. 25312. Convention date, Sept. 17, 1936. Addition to 486,885. [Class 135] In a jet-tube relay described in the parent Specification; the ratio of the cross-sectional area of the nozzle 20 of the jet tube to that of the receiving orifice 21 or of each of the receiving orifices is approximately 2:3. With this ratio the percentage of the fluid in the nozzle 20 which passes into the orifice 21, and the pressure regairi in the orifice 21 are at the maximum value. This is shown by graphs for various diameter ratios d/D in the Specification.
Patent GB-616701-A (GB)
Title: Improvements in or relating to electronic devices for locating discontinuities in the electrical characteristics of a medium
IPC: G01V3/15
Filed: 1945-09-29
Abstract: 616,701. Locating conductors. STARNECKI, B., and ROSOSINSKI, M. Sept. 29, 1945, No. 25369. [Class 37] A mine detector or the like comprises a pair of oscillators tuned by Lecher-systems 6, 7 coupled to antennµ 17, 18 with which the ground is explored. In the absence or irregularities, both antennµ are equally affected and the grid voltages of the oscillators are equal. At other times a difference in the grid voltages arises and is detected by an audio-frequency oscillator which is biassed so as normally just not to oscillate, but breaks into oscillation when a difference in the oscillator grid voltages is in the appropriate direction.
Patent GB-1125380-A (GB)
Title: Fluid pressure control systems
IPC: G05B19/43
Filed: 1966-06-07
Abstract: 1,125,380. Fluid-pressure apparatus. CORNING GLASS WORKS. June 7, 1966 [June 11, 1965], No. 25386/66. Heading F1P. A pressure fluid actuated reciprocating motor 32 connected by a rack 34 to a pinion 36 is reversed at either extreme end position when a two-position four-way control valve 27 is switched by a fluidpressure pulse transmitted from a line 23 through one or other normally vented valves 18, 19 actuated by continuously rotating timing cams 13, 14 under the control of or serving to control reciprocating means 10 synchronized with motor 32 and through associated lines 24, 28 leading to opposite ends of valve 27, and the motor 32 may be stopped and held at its intermediate position say during its return stroke by manually switching a solenoid operated two-position three -way valve 52 from the position shown to pressurize a line 67 and thereby move a three-position three-way valve 47 to its mid-position, assuming a recess 49 in a cam 39 driven from pinion 36 to engage a follower 44 secured to valve 47, thereby resulting in transmission of pressure from lines 66, 67 to the previously pressurized end of valve 27 and continued outward stroke of the piston until pressure in a line 68 acting on one end of a two-position three-way valve 43 between valve 27 and the main supply, and return of motor 32 is able to switch said valve 43 to its closed position which occurs when a follower 41 secured thereto engages a recess 48 in a cam 38 also driven from pinion 36. During this pause of motor 32 in its intermediate position, valves 18, 19 continue to be operated but have no effect on valve 27 since the R. H. S. thereof is subject to continuous pressure from line 66, valve 47 and line 71. The interrupted stroke of motor 32 is completed in synchronism with means 10 when after switching valve 52 to vent position shown valve 43 is returned to the open position by pressure pulse in a branch line 73 of line 24. The motor may also be stopped at its intermediate position during its forward stroke.
Patent GB-411337-A (GB)
Title: Improvements in or relating to the encasing of electrical elements such as condensers
IPC: H01G4/224
Filed: 1933-09-14
Abstract: 411,337. Resistances. STANES, S. T., 50, Hatch Road, Norbury, and TELEPHONE MANUFACTURING CO., Ltd., Hollingsworth Works, Martell Road, West Dulwich, both in London. Sept. 14, 1933, No. 25490. [Class 37.] Electrical components such as resistances are encased by first inserting into a deformable, e.g. paper, envelope 10 a quantity of plastic protective material 12, inserting the component 13, and then squeezing the receptacle to distribute the insulating &c. material over the surface of the element. A rigid outer casing may be fitted, with removable bottom and top.
Patent GB-627467-A (GB)
Title: Improvements in colour photography and sensitive materials therefor
IPC: G03C7/26
Filed: 1947-09-18
Abstract: 627,467. Colour photography. KODAK, Ltd. Sept. 18, 1947, No. 25519. Convention date, March 4, 1943. [Class 98 (ii)] A method of improving the colour rendition of a multilayer photographic material having silver halide layers sensitive to each of the three primary colours comprises sensitising the blue sensitive layer to red light in amount approximately one-tenth to one-hundredth of its blue sensitivity. In this way the red component of an object is recorded in a restricted degree in the blue recording layer as well as in the normal red recording layer and the yellow positive produced from the blue recording negative is correspondingly reduced in yellow wherever the object possesses a red component ; and, therefore, in the reproduction of reds by the subtractive combination of the yellow and magenta colours in the positives which normally yield reds of an orange tint due to excess of yellow in the magenta, this excess of yellow is avoided. The method is applicable to the photography of natural objects and to the copying of colour photographs such as colour films. Three examples describe the addition of specified proportions of 2,2<SP>1</SP>-diethyl-5,6,5<SP>1</SP>,6<SP>1</SP>-dibenzoxadicarbocyanine iodide, . 2,21-diethylthia-41-dicarbocyanine iodide and 3,3<SP>1</SP>-diethyl-5,6,5<SP>1</SP>,6<SP>1</SP>- dibenzthiacarbocyanine bromide respectively to blue sensitive fine-grain silver bromide negative emulsions.
Patent GB-921575-A (GB)
Title: Method of and apparatus for high temperature dyeing
IPC: D06B3/26
Filed: 1961-07-14
Abstract: <PICT:0921575/IV(a)/1> <PICT:0921575/IV(a)/2> Dyeing apparatus comprises a pressure vessel 10, a dye bath unit for retaining a dye bath 11, means to support the unit removably within the pressure vessel, means for advancing fabric through the dye bath and means associated with the pressure vessel to maintain the dye bath at a temperature in excess of 212 DEG F.  In the arrangement shown the dye bath 11 is mounted on wheels 12 which engage rails 13 for easy movement into and out of the pressure vessel 10.  The vessel 10 is equipped with lines 14, 15, 16 for supplying water, steam &c. to the bath and a perforated plate 17 is disposed along the length of the bath to prevent material contacting the piping.  A slatted reel 18 for the fabric is rotatably mounted above the bath 11 and can be connected to a motor 21 mounted outside the pressure vessel 10.  An idler slatted cylinder 23 is also mounted on the bath 11 and rope-like endless strands 22 are mounted over the reels 18, 23 and arranged to dip into the dye bath.  In use the strands of fabric 22 are mounted over the reels and the bath filled with dyeing liquor at about 180 DEG  to 212 DEG F.  By a system of tracks the bath is fed into the pressure vessel 10 and the latter is sealed by door 36.  The temperature of the dye bath is then further elevated, e.g. to 250 DEG F. by introducing steam through supply line 16 and the motor 21 is energized to advance the material through the bath.  Other types of dye baths may be used with the pressure vessel, e.g. a Pad type in which the fabric is taken from a supply roll and passed through the bath once only and wound on another roll or a Jig type in which the fabric is reciprocated through the bath.
Patent GB-616089-A (GB)
Title: Atomizers
IPC: A61M11/00
Filed: 1946-08-27
Abstract: 616,089. Sprayers. CURRY, H. E. Aug. 27, 1946, No. 25575. [Class 69 (iii)] In an atomizer particularly for medical inhalants, the container 1 is formed with inhalant outlet slots 7 and air inlets 32, both closable by rotation of stopper 10 and a conical cap 13 with corresponding outlets 14, the cap 13 being coupled by rods 11 to the stopper 10 which can be rotated in the neck 2 of the container to effect register or closure of the slots 7 and 14. Pressure air is supplied from a rubber bulb to the stopper tube 24 and atomizes liquid drawn through the capillary tube 30. A baffle plate 21 breaks up the jet, and air entrained through neck openings 32 assists in making a fog-like dispersion. The size of the openings 32 is also adjustable by rotating the stopper in the neck of the bottle, and thereby also complete closure of the combined device may be obtained. The container can be drained by pouring the liquid out through the air openings 32.
Patent GB-1207215-A (GB)
Title: Recovery of mercury vapour from air streams
Inventor: BELL DAVID
IPC: C22B43/00
Filed: 1968-05-29
Abstract: 1,207,215. Mercury cathode electrolysis cells; recovery of mercury vapour. MURGATROYD'S SALT & CHEMICAL CO. Ltd. May.1, 1969, [May 29, 1968], No.25609/68. Heading C7B. Mercury vapour is recovered from the degassing air stream removed from the wash boxes for washing the mercury amalgam exiting from mercury cathode electrolytic cells by washing the stream with a solution of acid brine containing dissolved chlorine and cycling the brine solution containing the mercury to a mercury cathode electrolytic cell. The acid brine used may be spent electrolyte from the electrolytic cell, containing dissolved chlorine, the brine then being resaturated with solid salt, treated with reapents to remove impurities, e.g. with alkali metal hydroxide to remove iron and magnesium, with barium carbonate to remove sulphate ions, and with sodium carbonate to remove calcium, and filtered before being fed to the electrolytic cell.
Patent GB-584240-A (GB)
Title: Improvements in offset printing machines
IPC: B41F13/22
Filed: 1944-12-22
Abstract: 584,240. Printing-machines. WESTON, H. Dec. 22, 1944, No. 25704. [Class 100 (ii)] Offset planographic rotary or flatbed machines are fitted with heating apparatus for heating and drying the blanket or printing- plate or both in order to do away with bad impressions due to accumulation of water on the blanket. As shown the blanket cylinder 4 of a rotary machine is heated. by a stationary heater 7 fitted with an infra-red heater, gas or electric heater, with hot water, or a blower for hot air. A heater may be housed in the plate or blanket cylinder, and may be controlled by a thermostat.