baber/WOPTO huggingface dataset:
Patent GB-845421-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1956-10-01
Abstract: 845,421. Optical systems. COOK, G. H., and TAYLOR, TAYLOR & HOBSON Ltd. Sept. 18, 1957 [Oct. 1, 1956], No. 29855/56. Class 97(1) An optical objective comprises four members, the first and fourth of which are simple positive lenses, the second of which is a negative meniscus doublet, and the third of which is made up of a front simple negative meniscus and a rear simple positive meniscus, all three meniscus lenses being concave to a diaphragm between the second and third members which have a combined equivalent negative power between 0À3 and 0À5 times the power of the objective, the refractive index of the front element of the meniscus doublet exceeding that of the rear element thereof by between 0À06 and 0À12, the power of the rear surface of the rear meniscus of the third member lying between 2À1 and 2À8 times the power of the fourth member and between 1À75 and 3 times the power of the objective, and the axial length of the third member lying between 0À09F and 0À15F, where F is the equivalent focal length of the objective. One example of an objective having these features is shown. In this example, the cemented surface R4 is convex to the front and has a radius between F and 3F, the axial thickness of the second member being between 0À11F and 0À16F. The air space S2 is preferably between 0À4 and 0À7 times (R5+R6). Also, the power of surface R3 is between 2À7 and 3À5 times the power of the front simple positive lens which has a focal length between 1À3F and 1À8F. Surface R10 is convex to the front and surface R11 is concave to the front and of a radius between 0À7F and 1À2F; the focal length of this rear lens is preferably between 0À7F and 1À3F. The curvative of surface R8 exceeds that of adjacent surface R7 by more than 0À025 times the power of the objective. Preferably also the index difference between the front positive lens and the front elements of the second member lies between 0 and 0À13. Optical data are given for two examples.
Patent GB-173377-A (GB)
Title: Improvements in and relating to vehicle wheels
IPC: B60B9/10
Filed: 1920-10-22
Abstract: 173,377. White, A. E., (Johnstone & Co., Inc., S.). Oct. 22, 1920 Non-metallic elastic bodies and cores. - A wheel tyre comprises a continuous tread portion 13 and a base portion 11 connected by short integral spokes 14. A rim 4 has recesses accommodating projections formed on interlocking rubber cushions 6 which have outer projections 15 engaging correspondingly-shaped recesses in the part 11 of the tyre. The cushions 6 may be held in place by side plates 16.
Patent GB-160892-A (GB)
Title: Improvements in or relating to the manufacture of saponaceous compositions
IPC: C11D9/18
Filed: 1919-12-01
Abstract: Saponaceous cleansing-compositions are made by mixing with melted fatty acids a hydrated aluminium silicate, or china clay or other mineral containing a large proportion of such silicate, and afterwards saponifying with alkali.  The preferred proportion of china clay &c. is 20-50 per cent of the finished product.
Patent GB-321796-A (GB)
Title: Improvements in or relating to trays or supports for use with display stands, and the like
IPC: A47F5/04
Filed: 1928-10-19
Abstract: 321,796. Houghton, A. B., Houghton, G. G., and Houghton, L. S., (trading as Houghton, A. B. & G. G.). Oct. 19, 1928. Card and like. stands.-An advertising, display, stand consists of a sheet metal tray 4 with a rigid reinforcing base plate 6 secured against the base of the tray by spinning &c. a portion 5a of the rim 5 of the tray over the upper face of the plate 6, the tray and plate having a central hole to receive a projection 7 of the display stand. The plate 6 may be of glass. According to the Provisional Specification the central hole may be screw-threaded and the plate and tray may be secured together by a ferrule passed through the central hole. Also, a plate of glass and a reinforcing plate, which may be metallic or of earthenware, is secured within the tray by the spinning &c. operation. Specification 17270/93, [Class 3, Advertising &c.], is referred to.
Patent GB-409598-A (GB)
Title: A process for the manufacture of compounds suitable for use as wetting, cleansing, emulsifying and bleaching agents
IPC: C11D1/34
Filed: 1933-10-31
Abstract: Products useful as emulsifying agents are obtained by treating higher alcohols, containing at least six atoms of carbon, with boric acid and sulphonating or phosphatizing agents.  The products may be treated with hydrogen peroxide or reagents yielding the latter.  In modifications, the alcohols may be esterified with the boric acid before the treatment with the sulphonating or phosphatizing agents, or the latter may be treated first with boric acid and then with the higher alcohols.  In examples: (1) a mixture of oleyl and cetyl alcohols is esterified with boric acid and then sulphonated with sulphuric acid: (2) oleyl alcohol is esterified with boric acid and then treated with phosphoric acid; after neutralization the product is treated with hydrogen peroxide: (3) borosulphuric acid is treated with lauryl alcohol and the product, after neutralization, treated with excess hydrogen peroxide: (4) octadecenol is esterified with boric acid and treated with sulphuric acid; hydrogen peroxide is added to the product after neutralization; (5) lauryl or cetyl alcohol is introduced into a mixture of boric acid and sulphuric acid.ALSO:Products useful as wetting, cleansing, emulsifying and bleaching agents are obtained by treating higher alcohols containing at least six atoms of carbon with boric acid and sulphonating or phosphatizing agents.  The products may be treated with hydrogen peroxide or reagents yielding the latter. In modifications, the alcohols may be esterified with the boric acid before the treatment with the sulphonating or phosphatizing agents, or the latter may be treated first with boric acid and then with the higher alcohol.  In examples: (1) a mixture of oleyl and cetyl alcohols is esterified with boric acid and then sulphonated with sulphuric acid (100 per cent); (2) oleyl alcohol is esterified with boric acid and then treated with phosphoric acid; after neutralization the product is treated with hydrogen peroxide; (3) borosulphuric acid, produced from oleum and boric acid, is treated with lauryl alcohol and the product after neutralisation, reacted with excess hydrogen peroxide; (4) octadecenol is esterified with boric acid and treated with sulphuric acid (100 per cent); hydrogen peroxide is added to the product after neutralization; (5) lauryl or cetyl alcohol is introduced into a mixture of boric acid and sulphuric acid.
Patent GB-1150214-A (GB)
Title: Chair Raising and Lowering Mechanism.
Inventor: HORIE HIDEHARU
IPC: A47C3/30
Filed: 1966-07-06
Abstract: 1,150,214. Adjustable seats. H. HORIE. 6 July, 1966, No. 30435/66. Heading A4J. [Also in Division B8] In a hydraulic seat raising and lowering mechanism, employing a reciprocating plunger (28) pump and a seat supporting ram 10, the pump operating arms 56 rock about no fixed pivotal axis and, in a top position, tighten a split ring clamp 84 about the ram to lock it, while in a bottom position, they cause pin (106) to open valve (60), connecting the ram cylinder (62) with the reservoir (40), so that the seat sinks under the weight of the occupant. A bracket 44 engages plunger (28) and is secured between pins (50), which are captive in inclined slots (54). A connecting link 100 between a pin (50) and lever 94 turns the latter downwardly, into the locked position of clamp 84, as pins (50) abut the lower ends of slots (54). Arms 56 are interconnected by a pedal. A by-pass duct (114, 116, Fig. 2, not shown) limits the upward extension of ram 10 and becomes effective if the operation of the pump is continued after the limit has been reached.
Patent GB-1347826-A (GB)
Title: Manipulable optical scanner
IPC: G06K7/10
Filed: 1972-06-29
Abstract: 1347826 Photo-electric scanner INTERNATIONAL BUSINESS MACHINES CORP 29 June 1972 [26 July 1971] 30454/72 Heading G1A [Also in Division G2] A scanner for detecting optically coded data on a record medium 13 comprises a tubular body portion 2 containing a light source 12 and a truncated ellipsoidal shell portion 4 having an aperture 9 at one focus and a light receiver, e.g. a photo-cell 11 or light guide end, Fig.4 (not shown), at the other focus.
Patent GB-709009-A (GB)
Title: Improvements in or relating to photographic contact printing apparatus
IPC: G03C5/02
Filed: 1950-12-13
Abstract: 709,009. Photographic printing apparatus. STASSE, R. Oct. 9, 1951 [Dec. 13, 1950], No. 30470/50. Class 98(2) Means for varying the intensity of illumination or the exposure time of a photographic contact printing operation in accordance with a predetermined grading of the sensitized material employed and with the density of the negative to be printed, comprises storage means for several different grades of sensitized material, indicating means adapted to be rendered operative on selection of the required sensitized material from the storage means to produce an indication representative of the grade of that material, a scale, graduated in terms of negative density, the scale and the indicating means being relatively movable so that the indication corresponding to the grading of the selected sensitized material can be registered with the scale graduation corresponding to the negative to be used, and setting means operated by the relative movement of the scale and indicating means to adjust the intensity of illumination or exposure time. The printer shown comprises several containers 1, each for a particular grade of sensitized paper 2. Each container is associated with a switch 3 so that movement of the container or of a part thereof when removing therefrom the sensitized paper required for use, closes the switch and ignites the corresponding lamp 5. in a carrier 6. This carrier is movable across a scale 10 representing negative densities and is-supported by a frame 9 controlling opaque or semi-transparent screens 12 disposed between the printing lamp 13 and the negative to be copied. In use, the carrier 6 is moved so that the illuminated lamp 5 registers with the graduation on scale 10 corresponding to the density of the negative to be printed. This movement adjusts the screens 12 so that the intensity of illumination is that desired. As an alternative, the screens 12 may be replaced by a time control device in the circuit of lamp 13, movement of carrier 6 in this case adjusting-the device, so as to vary the time of exposure required for a given intensity of illumination. An interlock device 14 may be provided for opening a switch 3 when a subsequent switch 3 is closed. The carrier 6 may be fixed and the scale 10 moved to control the screens 12 or the time control device.
Patent GB-193820-A (GB)
Title: Improvements in or relating to ball-retrieving appliances
IPC: A63B47/02
Filed: 1922-11-07
Abstract: 193,820. Fisher, H. W. Feb. 21, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Holding and picking-up tools; reachers and longarms.-A device for picking up balls comprises two opposed jaws 2, 3, resilient means, such as a spring 4, for closing the jaws, and a catch for holding the jaws open against the action of the sping, the catch being released by pressure against the ball. The jaws 2. 3 are in the form of circular loops pivoted to a member 1 carried by a handle 7. Connecting toggle loops 5 pivoted to the jaws and centrally to each other are held in the extended position shown by a catch 6 fixed to one loop. Pressure being exerted on the ball the loops 5 swing upwardly to break the toggle joint whereby the jaws 2, 3 are closed' on to the ball. The handle 7 may be in sections jointed like a fishing rod and a stiff pivotal joint may be provided between the end 8 of the handle and the member 1.
Patent GB-285597-A (GB)
Title: Improved feed motion for metal and like planing or cutting machines
IPC: B23D7/00
Filed: 1926-12-03
Abstract: 285,597. Walker, M. Dec. 3, 1926. Driving machines; planing.-In a feed mechanism for planing or cutting machines a reciprocating member 1 terminating in a sleeve 3 sliding over a pin 4 actuates a crank arm 8 on a sleeve 9 which is connected by gearirg 12 to the feed screw 13. A second crank arm 14 on the sleeve 9 engages a, sliding member 17 carrying a head 23 coacting with a screw adjusted abutment 24 to limit the feed movement. The member 1 may be actuated by an electromagnet 2 similar to that described in Specification 284,058 and when the current of the magnet is broken, the return movements of the slide 17 and 1 are effected by means of a weight 22.
Patent GB-1474807-A (GB)
Title: Process for the preparation of a wort product for use in brewing
IPC: C12C5/04
Filed: 1974-07-10
Abstract: 1474807 Spray dried wort product BOEHRINGER INGELHELM GmbH 10 July 1974 [10 July 1973] 30652/74 Heading C6E Aromatic, palatable beers may be produced using cured malt of weak flavour, green malt or unmalted cereal with the aid of a wort product produced by a process which involves removing coagulable residue from a wort obtained from malt and/or unmalted cereal and spray-drying the treated wort at an air inlet temperature of at least 200‹C, typically 200-305‹C, and an air outlet temperature of at least 90‹C, typically 90-160‹C. The coagulable residue is removed by boiling the wort to precipitate hot coagulable residue, cooling the boiled wort to a temperature below 30‹C, adding 2-10% by volume of ethanol and precipitating cold coagulable residue by further cooling to 5-10‹C. 0À2 to 2g, dry weight, of the beaten white of an egg and/or albumin per litre may be added to the wort before boiling to assist the precipitation, also hops if a hopped wort product is to be produced. The precipitates may be separated by filtration. Endoenzymes such as ficin, papain and bromelin are preferably used in the preparation of the original wort in an amount of 25-500 protease units, defined, per kg of malt or unmalted cereal, whereby to enhance the content of soluble nitrogen. A 12 wt. per cent aqueous solution of the spray-dried wort product typically exhibits a total soluble nitrogen content of 145-160 mg/100 ml, a coagulable nitrogen content, defined, of 15 mg/100 ml or below, an apparent final degree of attenuation, defined, of 20-90% and a colour of 100-3000 EBC units. Examples 3 and 4 disclose processes for the production of beer which comprise fermenting a beer wort in the presence of the wort product or fermenting a sugar solution in the presence of the hopped wort product, respectively.
Patent GB-858076-A (GB)
Title: Fluid fractionation by electrodialysis
IPC: B01D61/48
Filed: 1958-09-25
Abstract: 858,076. Electro-dialysis of liquids. KOLLSMAN, P. Sept. 25,1958, No.30657/58. Class 41 Liquids including ionic and non-ionic mixtures, but excluding colloids are separated into their components by electro-dialysis using ion exchange permselective membranes whereby ions of one charge pass through the membrane, and the others build up a concentrated mixture at the membrane surface, and due to the influence of gravity, the components separate into layers with the lighter components at the top, which are then drawn off from the individual levels, The membranes may be anionic or cationic, and are selected in accordance with the ions to be separated, the cell compartments may be filled with porous granular material e.g. another ionic material which preferentially absorbs or transports a selected ion. The liquid preferably flows horizontally, to promote maximum separation under gravity. Fig. 1 shows a horizontal cross section of a suitable apparatus consisting of main cell compartments 44 bounded by membranes 23... 29, with guard cells 12, 13 flanking the main cells, the end sections 15, 16 containing the anode and cathode respectively. The sidewalls of the main cells communicate with a supply chamber 39 and exit-chamber 49, through screens 45, 47. The liquid mixture to be separated is supplied through one or more inlets 42, which also supplies the guard chambers 12, 13, An electrolyte is also fed to the electrode chambers. Liquid flows uniformly into the cells 14 where it is subjected to the electric field generated between electrodes 16, 17, and the ions concentrated at the membranes flow slowly towards the chamber 49 forming under the action of gravity, layers of different components at different levels. These are drawn off through a series of exit pipes arranged vertically of which one only 54 is shown. Several modifications of the apparatus are described, in which the floor of the main cells is sloping downwards to the exit chambers; in which the liquid flows in the same direction as the electric field; and in which the ionic membrane is arranged is a spiral, regarded in plan, with an inner cylindrical electrode, and an outer cylindrical electrode surrounding the spiral. For Examples, (1) a solution of KF, Na Cl and Li Cl is treated using an anion permeable membrane. The Li component is drawn off at the top, the Na is the central exits, while the K component concentrates at the bottom, (2) using fullers earth as an inert cell filler, and using potassium chloride solution in the electrode compartments, a mixture of 50:50 acetane and benzene separates into 62 % acetone at the top and 62% benzene at the bottom (3) sea water is separated into a top outflow containing about 1/3 the salt content of the bottom outflow. Reference is made to separating mixtures of salts of different dissociation e.g. sodium chloride or acetate, borax; boric acid, acetic acid; sugar solutions; mixtures of alcohol or acetone with water or benzene or other hydrocarbons.
Patent GB-341444-A (GB)
Title: Improvements in or relating to the purification of sulphur containing gases or vapours
IPC: C10K1/34
Filed: 1929-10-10
Abstract: 341,444. Gas-purifying compositions and processes. BRITISH CELANESE, Ltd., 22, Hanover Square, London, BADER, W. and SHELMERDINE, E. J., of British Celanese, Spondon, near Derby. Oct. 10, 1929, No. 30718. [Class 55 (ii).] Gases such as crude carbon monoxide, producer gas, or water gas, are purified from organic sulphur compounds by contact with a heated catalyst consisting of or comprising alumina, in the presence of steam to the amount of about 20 per cent of the volume of the gases treated. The sulphur in the gas is converted to sulphuretted hydrogen which is then removed, for instance by iron oxide. Suitable catalysts are precipitated alumina, bauxite, or mixtures of alumina with other oxides such as manganese dioxide and the temperature range extends from 200‹ to 550‹ C. If iron oxide is present in the catalyst, a lower temperature should be used, for example 250‹ to 350‹ C. ; and to avoid any reaction between the carbon monoxide and the steam, a temperature of over 500‹ C. should be avoided. The catalyst may be deposited on carriers such as pumice.
Patent GB-1517465-A (GB)
Title: Method of fabricating a magnesium carbonate board
IPC: B32B13/04
Filed: 1976-07-23
Abstract: 1517465 Magnesium carbonate board NIPPON HARDBOARD CO Ltd 23 July 1976 30865/76 Heading C1H [Also in Divisions B5 and D2] In a method of making a magnesium carbonate board, an aqueous suspension comprising a mixture of neutral carbonate and a fibrous material is cast onto a porous permeable carrier having pores of a size e.g. less than 10 Á, that will let through water but not the particles, to form a layer, assembling a plurality of the layers and pressing and then heat curing the assembly. The fibres may be vegetable, mineral or synthetic and the suspension may also comprise calcium compounds, silicon compounds, minerals and synthetic resins, specified carriers being a non-woven textile, a knitted fabric, a foam, a sintered metal or a porous ceramic. Prior to assembly of the individual layers, a coating resin or a finely divided material may be applied to at least one of the layers. The pressing may be effected with or without heat, the curing, to convert part of the neutral carbonate to the basic form being preferably effected at 60 to 100C
Patent GB-791563-A (GB)
Title: Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade
IPC: B64C11/16
Filed: 1955-10-28
Abstract: 791,563. Axial flow blowers and fans. VAGHI, J. Oct. 28, 1955 [May 2, 1955], No. 30881/55. Class 110 (1). [Also in Group XXXIII] A blower or fan blade comprising an elongated member 11 having a greater width than thickness and one substantially straight longitudinal edge 12, while its other edge 13 has a reversely curved corrugated contour forming a series of alternating convex ribs and concave recesses 18, is constructed so that the wavy contour extends over substantially the whole width of the blade with the height and depth of the ribs and recesses thus formed diminishing towards the straight edge, the corrugated surface extending to both sides of the blade. The width of the blade gradually increases from one end to the other and the depth of the recesses increases correspondingly. The blade extends radially from a hub and is inclined to the axis of rotation thereof by an amount increasing from the inner to the outer end of the blade.
Patent GB-410414-A (GB)
Title: Improvements relating to brooders for rearing chickens and other young birds
IPC: A01K31/18
Filed: 1933-11-07
Abstract: 410,414. Rearing-appliances. ELLIS, R., Standard Works, Port Street, Annan, Dumfriesshire. Nov. 7, 1933, No. 30973. [Class 5 (ii).] A brooder comprises an internal sleeping chamber, canopy or hover which can be travelled horizontally along stationary supporting members provided within the brood chamber. A covered frame a carrying a bag c filled with feathers, down or the like, and curtains d, is suspended by threaded forked pins e, whereby the hover is adjustable vertically, from bearing rails j, the pins e being fitted with rollers g engaging flanges on such rails. Stop rods r, having hooks at their upper ends and bent at right angles at their lower ends, engage the roof and floor netting to position the hover. Alternatively, the hover may be suspended by rings strung on rods or wires. The brooder may be constructed similarly to that described in Specification 367,499.
Patent GB-1511812-A (GB)
Title: Method and apparatus for sealing in-situ cracks and breaks in a pipe line
IPC: F16L55/1645
Filed: 1976-07-26
Abstract: 1511812 Repairing pipelines CONCRETE INDUSTRIES (MONIER) Ltd 26 July 1976 [28 July 1975] 31015/76 Heading F2P A method of sealing cracks &c., in a pipeline comprises inserting there-into an implement including an inflatable tube 1 having longitudinal ribs 4 forming channels there-between the tube being closed at both ends by end parts 2 and 3 and having an outlet 5 for sealing material halfway along its length, inflating the tube until the ribs and the ends of the tube tightly contact the inner wall of the pipe, injecting sealing material from a supply through said outlet into said channels and into any defects in the pipe wall, allowing the sealing material to set and removing the implement. The end part 2 has connections for supply of compressed air into the tube and for supply of a sealing material and a hardener to nozzles 6, 7 in the chamber 5. Support rods 15 connected by wire rope 18 are provided for moving the implement through the pipeline.