baber/WOPTO huggingface dataset:
Patent GB-899889-A (GB)
Title: Improvements in the production of acetic acid or mixtures of the same with methyl acetate
Inventor: HOHENSCHUTZ HEINZ
IPC: C07C51/12
Filed: 1959-08-17
Abstract: In a process for the preparation of acetic acid or a mixture thereof with methyl acetate by the continuous reaction of methanol, methyl acetate or dimethyl ether, or mixtures thereof, with carbon monoxide at a temperature of 150 DEG C.-300 DEG C. and under a pressure of 200-700 atmospheres in the presence of a metal of the iron Group of the Periodic Table, or a salt or carbonyl thereof, and of a halogen or a halogen compound with recycling of unreacted carbon monoxide, the circulating gas leaving the reactor and consisting essentially of CO, CO2, CH4 and entrained vaporised reactants and reaction products, is cooled under the reaction pressure to a temperature appreciably below the reaction temperature and brought into intensive contact with liquid reaction product as washing liquid under a pressure ranging from reaction pressure to a pressure about 30 atmospheres less, the resulting purified circulating gas is separated from the wash liquid and returned to the reactor and the wash liquid, being liquid reaction product withdrawn as such from the reactor or obtained as condensate by the above-mentioned cooling of gas leaving the reactor, is decompressed.  The washing step removes CO2 from the circulating gas.  Decompression of the wash liquid releases a gas rich in CO2 and some CO which may be recovered.  When condensate has been used as wash liquid it may subsequently be returned to the reactor or worked up with the main liquid product to separate acetic acid from methyl acetate; the latter may be recycled.  Carbonylation may be effected with iron, cobalt or nickel carbonyls, halides or lower aliphatic carboxylates, e.g., acetates.  The halogen may be provided by I2, Br2 or an alkyl, aryl or hydrogen halide.  Example are given using suitable illustrated apparatus.  A comparative experiment is described wherein part of the circulating gas is vented to control build-up of CO2.
Patent GB-357765-A (GB)
Title: Improvements in or relating to electrolytic cells
IPC: H01G9/145
Filed: 1930-09-19
Abstract: 357,765. Electrolytic cells and rectifiers. MACGREGOR, M. E., Greenbriar, Leigh Hill, Cobham, and YOUNG ACCUMULATOR CO. (1929), Ltd., Burlington Works, Arterial Road, New Malden, both in Surrey. Sept. 19, 1930, No. 28064. [Classes 37 and 53.] The invention, which relates to electrolytic cells and is described with reference to an electrolytic rectifier, consists in forming each pair of electrodes so that one, 2, is of sleeve-like form, surrounds the other 1, and is connected to it by a gastight plug or seal 3 located above the level of the electrolyte 4. Gas liberated in the inter-electrode space lowers the level of the electrolyte in the sleeve 2 to a level 6 below that of the electrolyte 4, and holes 7 in the lower half of the electrode 2 permit free circulation of the electrolyte and determine the level 6 of the electrolyte within the electrode 2. The lower part of the inner electrode 1 constitutes the active part and extends substantially to the lower end of the outer electrode 2. Materials used for the anode 1, cathode 2, and the electrolyte may be those specified in Specification 284,039, [Class 37, Electricity, Measuring &c.]. If an oxidizable material, such as aluminium or aluminium alloy, is used as the anode 1 the nascent hydrogen liberated in the space 5 reduces the oxide and minimizes the effect of spark erosion.
Patent GB-426655-A (GB)
Title: Improvements in and relating to suction cleaners
IPC: A47L5/36
Filed: 1933-10-12
Abstract: 426,655. Joints for vacuum cleaners. ABINGDONWORKS (1931), Ltd.,BRAMLEY, T. B., and GRAY, J., King's Road, Tyseley, Birmingham. Oct. 12, 1933, No. 28135. [Classes 8 (i) and 99 (i)] [See also Group XXVI] A joint between the casing and an end cap of a vacuum cleaner of the cylindrical type containing a fan, motor and dust bag comprises a P-shaped rubber or like packing band f housed in an annular recess e formed on the outside of the casing which is engaged by the flange g of the end cap b (Fig. 3). Fig. 4 shows the joint used in conjunction with ring k for stiffening the end of the casing to form a support for the dust bag r.
Patent GB-885710-A (GB)
Title: Apparatus for reading characters recorded on a carrier
IPC: G06V10/10
Filed: 1960-08-15
Abstract: 885,710. Automatic character reading. RUFBUCHHALTUNG A.G. Aug. 15, 1960 [Aug. 17, 1959; June 23,1960], No. 28135/60. Class106 (1). In a character recognition apparatus, the image of a moving character 2, Fig. 1, on carrier 3 is caused by lens 5 and rotating four-sided prism 4 to sweep vertically over an apertured mask 6 behind which is a photo-cell 9, a magnetic drum 11 rotating with the prism having on it four groups of timing pulses, thirty-two in each group which are used to sample each vertical scan of the character image made by the photo-cell. The shaft 7 carrying the prism 4 and drum 11 is driven by motor 25 and also carries a worm 16 engaging with a gear 17 actuating rack 23. This is connected to carriage 20 on which the character carrier 3 is mounted so that the character moves past the scanning position. After all the characters have been read the motor 25 reverses to reset the carriage. As shown in Fig. 4 the signals from photo-cell 9 are amplified at 37, clipped at 38 and applied to a gate 36. Clock pulses from the head 13 are amplified at 32, clipped at 33 and differentiated at 34 to produce sampling pulses. The signals at 39 consist of a series of pulses in each scan, the number of which represents the length of the black part in that scan. These signals are passed to recognition circuitry and are also stored on drum 12 to be read off again, e.g. three scans later. The delayed signals are also passed to the recognition circuitry. Instead of delaying the signals in a magnetic drum store, there may be two apertures in the mask and two photo-cells, spaced apart the equivalent of one or more vertical scans.
Patent GB-1128426-A (GB)
Title: An arrangement for monitoring the position of a movable member with respect to a fixed member
Inventor: AUBERT MICHEL
IPC: G05D3/14
Filed: 1967-06-19
Abstract: 1,128,426. Positioning, apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. 19 June, 1967. [18 July; 1966], No. 28153/67. Heading G4H. The position of a rotatable member, e.g. the barrel of a nuclear reactor, carrying a coded pattern of coils e<SP>1</SP> 1 . . . e<SP>7</SP> 1 , e7 2 . . . arranged-in columns parallel to the axis of rotation of the member relative to a fixed member carrying a row of electro-magnetic exciter coils a 1  . . . a 5  to each of' which a different frequency f 1  . . . f 5  is supplied is determined by the frequency signal induced in a conductor g in accordance with whichcolumn of coils is aligned with the exciter coils: In the embodiment described the barrel may be positioned in any one of twenty positions by closing the switches 1 which correspond to the coils arranged in - a cavity in the required column. If, eg., column 9 is required, switches 1 1 , 14 are closed so that frequencies - f 1 , f 4  ,are fed to a comparator j. A signal comprising the combinationof all five frequencies is fed on conductor b to filters c 1  . . . c 5  associated with exciter coils a 1  . . . a 5  so that as the columns of coils are rotated (by, a motor,o driving the barrel) in front of theexciter coils, frequency signals are fed to the comparator j. When the frequency signal representing f 1 + f 4  is obtained a relay m is operated to stop the motor. A sixth frequency f 6  is also transmitted on conductor-b this signal only reaching one of the exciting coils when its associated filter fails, an error signal then being generated.
Patent GB-281741-A (GB)
IPC: C22B1/02
Abstract: 281,741. Dietzsch, F. July 7, 1926. Cyaniding.-In the extraction of gold from ores by the cyanide process, the one is first heated with not more than 2 per cent. of an alkali sulphate or an alkaline earth sulphate, whereby the extraction is rendered more complete.
Patent GB-352816-A (GB)
Title: Improvements in oil fuel burners
IPC: F23D11/46
Filed: 1930-09-20
Abstract: 352,816. Mounting burners. BABCOCK & WILCOX, Ltd. and FRANKISH, A., Babcock House, Farringdon Street, London. Sept. 20, 1930, No. 28174. [Class 75 (i).] In a liquid fuel burner mounting of the type fitted with a valve.K which is closed by. a spring L to cut off the fuel supply when the burner is removed, the valve stem R slides in a sleeve M fitting in a socket N in the burner head, the sleeve and socket being of such a length that on the detachment of the quick-release clip E the valve will close before the greater portion of the socket is out of engagement with the sleeve. Alternatively the burner head may be provided with a spigot engaging a socket on the mounting G.
Patent GB-923003-A (GB)
Title: Means for securing leg or like supports to an article of furniture
IPC: A47C7/00
Filed: 1959-08-18
Abstract: 923,003. Seats. H. C. SHEPHERD & CO. Ltd., and R. RHYMES. Aug. 18, 1960 [Aug. 18, 1959], No. 28224/59. Class 52 (2). A chair has secured to the underside of the seat 1 a plate 2 having its opposed side edges formed with integral channel-shaped portions 4, 4a, 5, 5a respectively which engage the neck portions 8, 11 of pairs of legs 6, 7, 9, 10 and are secured by a bolt 12. Legs 9, 10 have welded thereto stays 13, 14 which carry a back-rest 15.
Patent GB-369887-A (GB)
Title: A method to place the edge of the frosted part of a glass bulb for electric lamp, when part of the inner surface of a glass bulb is to be frosted by a corrosive liquid
IPC: C03C15/00
Filed: 1930-09-22
Abstract: 369,887. Etching. NARUSE, T., 1, 1-Chome, Uchiyamashita-Cho, Kojimachi- Ku, Tokio. Sept. 22, 1930, No. 28260. Convention date, Sept. 20, 1929. Void [Published under Sect. 91 of the Acts]. [Class 100 (ii).] In a process of partly frosting the inside surface of an electric lamp bulb in which an etching fluid is poured into the bulb and then withdrawn through a tube, starch, flour, or other powder having no etching properties and slightly heavier than the fluid is mixed with the etching fluid so as to thicken it and prevent splashing or the formation of waves on the surface of the fluid, which would render the line of separation between the plain and etched parts of the bulb irregular. The powder also sinks to the bottom of the fluid and protects the bottom of the bulb from excessive etching while the fluid is being withdrawn.
Patent GB-1083668-A (GB)
Title: Apparatus for copying the body-contour of a recumbent individual
IPC: A61B6/04
Filed: 1965-07-05
Abstract: 1,083,668. Plotting curves. K. M. E. SETALA. July 5, 1965 [July 6, 1964], No. 28293/65. Heading B6P. A table 6, Fig. 1, for a recumbent individual includes bars 2 along which are slidable bushings 3 supporting a stationary ring 7, Figs. 1 and 2, around which is rotatable a frame comprising a ring 8 attached to shanks 9 on which is rotatably mounted a circular copying base 10 carrying a paper sheet 21, the frame carrying a movable feeler rod extending to the individual and being provided with a recorder. The base 10 and ring 7 are connected by a wire rope 11 passing round a pulley 12 mounted on the shanks 9. On rotating the pulley the base 10 is rotated round the axis of the ring 7 while remaining in the same angular position with respect to its own axis. Attached to the shanks 9 are rails 13 on which is slidable the feeler rod 14 reciprocated by an electrical driving element 15 and carrying at one end the recorder. The other end of the rod carries a sensitive microswitch 16, which on contacting the skin of the individual causes the rod to reverse its movement, and actuates the recorder to make a mark on the sheet. The table is transparent and marked with a scale along its central longitudinal axis, with which the median line of the individual is aligned. Below the table and attached to the ring 7 are a projector 18 and a mirror 19, for shining a hair-line cross of light on to the underside of the body, and a mirror 20 so that the underside of the body can be viewed to see that the cross coincides with a similar mark on the body. As the head is moved from the position of Fig. 2 180 degrees counterclockwise the cross-sectional contour of the upper part of the body is plotted on the sheet 21. The lower half is plotted by inverting the body, or by moving the head through 360 degrees, the table then being in two parts with a gap between.
Patent GB-933998-A (GB)
Title: A process for improving the properties of continuous filaments or staple fibers of regenerated cellulose
IPC: D06M13/12
Filed: 1961-08-03
Abstract: Continuous filaments or staple fibres of regenerated cellulose are treated in the gel- or never-dried state with an aqueous solution comprising a polymeric acetal derived from ethylene glycol and formaldehyde, a halide as catalyst, at least 0.25% by weight of formaldehyde and an organic acid having an ionization constant between 1 x 10-5 and 1 x 10-7 or a metal salt thereof as buffering agent, and having a pH of between 5 and 7.5, dried at a temperature below 110 DEG C. and then cured at a temperature above 110 DEG C. to improve their alkali resistance and shrink resistance and to reduce their tendency to swell in water. The solution may contain 0.25-5.0% by weight of polymeric acetal, 0.2-2.0% by weight of halide, e.g. magnesium chloride, and 0.05-0.5% by weight of buffering agent, e.g. itaconic, malic, malonic, succinic or maleic acid.
Patent GB-1058154-A (GB)
Title: Improvements in cordwinding devices
IPC: A47L11/40
Filed: 1964-07-09
Abstract: 1,058,154. Spring drums. ELECTROLUX Ltd. July 9, 1964 [July 11, 1963], No. 28350/64. Heading B8B. A cordwinder in an electric floor polisher 10 comprises a frame 15, a cordwinding spool 24 mounted thereon for rotation about a vertical axis; the spool including upper and lower flanges 27, 26 between which the electrical cord 32 is wound and a driving drum 53 mounted on a member 39 secured in a vertical plane to the frame 15 for rotation adjacent the upper flange 27. The drum 53 includes a ring of gear teeth 49 which engage a ring of gear teeth 48 on the upper flange 27 of the spool 24 and a spring storage drum 55 is mounted on the member 39 adjacent the driving drum 53, and a spring 58 prestressed to coil around, but not secured to, the storage drum has its outer end 59 secured to the driving drum 53 to be wound thereon when the spool is rotated by the unwinding of the cord 32. The spool 24 is mounted on a roller bearing 29 which seats in a recess in the frame 15 and a recess in the lower flange 26 of the spool. The upper flange 27 is engaged from above by rollers 41 mounted on wings 39B extending from the member 39. The hub 25 of the spool 24 surrounding the polisher driving motor and a support 38 for the member 39, is formed at its upper edge with the gear teeth 48. The spring 58 which is wound from the grooved periphery of the drum 56 on to that of the drum 53 during cord unwinding is of the constant torque type and when the cord is released the spring rewinds on to the storage drum 56 causing the drum 53 to drive the spool 24 for winding up the cord 32. The inner ends of the wires within the cord 32 are connected to concentric slip rings mounted in an annulus of insulating material in the upper flange of the spool 24. These rings are contacted by leaf springs which are mounted on the wings 39B of the member 39 which is preferably made of insulating material. From these springs, conductors lead to the electric driving motor 14, Fig. 2 (not shown). The whole assembly is enclosed in a head 12 pivotally mounted to a spoke 22b, 22c of a handle 22. The polishing brushes 11 are geared together, one of which is driven by a gear-wheel on the lower end of a spindle extending from the electric motor.
Patent GB-807323-A (GB)
Title: Improvements in or relating to cigarette cases
IPC: A24F15/14
Filed: 1956-09-17
Abstract: 807,323. Cigarette cases. CHENG, W. G. Feb. 1, 1957 [Sept. 17, 1956], No. 28371/56. Class 18. A cigarette case formed with a delivery aperture in one edge has a spring-actuated member which pushes cigarettes into line with the aperture, as well as cigarette-projecting means, and means for retaining the pusher member inoperative when loading which consist of a pivotally mounted spring-pressed pawl engageable with the member. As shown, a pawl 50 mounted on a metal assembly plate 23 engages with a shoulder 51 on pusher member 35 when it is moved back against its spring 38 ; when the case is closed, the pawl 50 is automatically released from the shoulder 51 by a linkage which includes a two-armed lever 52 actuated by a locking-tongue 21. Individual cigarettes are projected through a delivery aperture comprising recesses 15, 16 in the top edges by depressing an operating rod 19 which acts upon an ejector lever 44 mounted on the plate 23 so that its tongue 45 pushes up a cigarette.
Patent GB-207338-A (GB)
Title: Improvements in or relating to the controls of motor vehicles and the like
IPC: B62M25/04
Filed: 1922-10-18
Abstract: 207,338. Sentinella, A. E. Oct. 18, 1922. Control mechanism for motor-cycle handle-bars &c. comprises a hand-lever e pivoted at d to a fixed plate, c and at f to a tube g, which telescopes upon or in a second tube h pivoted at i to the plate c. An operating-wire k passes through both tubes and is connected to the tube g by a cross-piece n, the pivots being so arranged that a substantially straight pull is exerted on the wire. The casing of the wire k abuts against an adapter l fitted into the outer end of the tube h.
Patent GB-958596-A (GB)
Title: A method of and apparatus for cooling and crystallising saline solutions
Inventor: GALE JOHN ANTHONY
IPC: B01D9/00
Filed: 1961-08-04
Abstract: 958,596. Crystallizing saline solutions by evaporation. KESTNER EVAPORATOR & ENGINEERING CO. Ltd. July 25, 1962 [Aug. 4, 1961], No. 28379/61. Heading B1B. Saline solutions, such as pickle and spin bath liquors, are crystallized by flash evaporation without external heating in a multi-stage vacuum evaporator, wherein the vacuum increases progressively from one stage to the next, and the solution flows by gravity through the successive stages of the vessel. The feed to the three stage vacuum vessel 10 enters the first stage 13 via pipe 16 and flows by gravity down pipe 17 into stage 14, down pipe 18 into stage 15, and finally leaves the vessel via pipe 20. Different degrees of vacuum are maintained in stages 13, 14 and 15 by the steam ejectors 30 connected via the manifold 31 to the direct contact condenser 32, which is connected to a vacuum pump via line 2. Evaporation of the feed occurs under the reduced pressure in stage 13, and the vapour produced is extracted from the system via the aperture 27 in the separator 26, which serves to remove entrained liquid from the vapour. The cooled liquid from stage 13 passes into stage 14 and is cooled further by evaporation under a lower pressure. Similarly, the liquid leaving stage 14 is cooled further in stage 15. The liquid in each stage is agitated by a controlled supply of air admitted via pipe 24 and distributer 25. The liquid finally withdrawn from the vessel via line 20, containing the crystals formed during its passage through the vessel, is pumped into a centrifuge or filter 23 having a discharge outlet 4 for the separated crystals and an outlet 5 for the mother liquor.
Patent GB-811829-A (GB)
Title: Improvements in or relating to the lubrication of solid surfaces
IPC: C10M171/00
Filed: 1957-09-09
Abstract: Solid surfaces at elevated temperatures, particularly gas turbine engine bearings, are lubricated by contacting the surfaces with a blend of a free-oxygen-containing gas and a vaporized organic lubricant which is a petroleum resin or a mixture of a petroleum resin with a hydrocarbon liquid, the weight ratio of oxygen to organic lubricant in the blend being from 7:5 to 2.3:1. The free-oxygen-containing gas may be air, while the hydrocarbon liquid may be kerosene, a lubricating oil or a jet fuel.  The petroleum resin may be prepared from a distillation residue obtained upon distilling a light petroleum fraction such as naphtha, kerosene, jet fuel or lubricating oil.  The preparation of a petroleum resin is described and it is stated that it contains alkylenes and alkyl-substituted mono- and poly-aromatics together with sulphur compounds (e.g. sulphides, thiophenes, mercaptans and derivatives thereof), oxygen compounds (e.g. phenolic materials and carboxylic acids) and nitrogen compounds (e.g. toluidine, quinoline and collidine).  Additional substances may be added to the composition, for example antioxidants (e.g. N-butyl-p-aminophenol, N,N1-di-sec.-butyl-p-phenylenediamine, butylated 4-methoxyphenol, 2,6-di-tert.-butyl-p-cresol and 2,21-methylene-bis-(6-tert.-butyl-p-cresol)), dispersants of the polymer ester type, oiliness agents of the fatty acid type (e.g. oleic or stearic acid) and mild extreme pressure agents of the sulphur-phosphorus type.  The lubrication of metallic surfaces with vaporous mixture is improved by forming a protective film on the surfaces by applying thereto a substance containing a phosphorus, sulphur, selenium, tellurium or halogen atom.  The surfaces may be pre-treated or a substance may be incorporated in the organic lubricant so that, for example, a sulphide, selenide, telluride, phosphate, phosphide or halide film is formed on the metallic surfaces.  Substances which are readily used in the gaseous state include sulphur, hydrogen sulphide, carbon disulphide and chlorine. Alternatively, the surfaces may be pre-treated by lubricating at about 400 DEG  F. with sulphurized mineral oil.  In examples, a bearing is lubricated with a blend of air and a vaporized petroleum resin or a vaporized mixture of petroleum resin and a friction of a JP-4 jet fuel with or without tris-(isopropyl) phosphite.  For comparison purposes, lubrication of the bearing with other vaporous lubricants is described. These vaporous lubricants include JP-4 jet fuel fractions and blends of air with JP-4 jet fuel or mineral lubricating oil, with the addition in some cases of carbon disulphide or triethyl phosphate.
Patent GB-619898-A (GB)
Title: A process for the manufacture of pentaenes
Filed: 1946-09-24
Abstract: Pentaenes are manufactured by condensing b -ionone with a Grignard compound of 1-hydroxy-3-methyl-hexene-(2)-yne-(5) or an ether thereof, subjecting the condensation product to hydrogenation until 1 mol. of hydrogen has been added to the triple bond, rearranging, preferably in the presence of a diluent, the 1.7 - dihydroxy - 3.7 - dimethyl - 9 - (21.61.61 - tri - methyl-cyclohexene-(11)-yl)-nonatriene-(2.5.8) or an ether thereof, by the action of an acylating agent and splitting off acid. Hydrogenation may be effected catalytically, making use of palladium-calcium carbonate, palladium-barium sulphate or palladium-charcoal on to which quinoline has been adsorbed as catalysts.  The rearrangement may be effected by heating with acetic anhydride in the presence of quinoline or by first esterifying 1.7 - dihydroxy - 3.7 - dimethyl-9-(21.6161-trimethyl-cyclohexene -(11)-yl)-nonatriene-2.5.8 and splitting off acid by boiling with tertiary potassium amylate.  Detailed examples are given.
Patent GB-294033-A (GB)
Title: Improvements in or relating to sewing accessories or hussifs
IPC: D05B91/14
Filed: 1927-10-26
Abstract: 294,033. Meier, H. Oct. 26, 1927. Work-compa.nions; skeinholders. - A sewing accessory or hussif comprises a tubular needle case e projecting into and preferably attached to a sleeve part c and mounted rotatably within a sleeve d, the part e having means such as a clip i for the attachment thereto of one end of a skein of thread, piece of embroidery, tape measure or the like h, the free end of which passes out through a slit in the sleeve d. A bobbin b, which may be of the double form shown, is disposed in the sleeve part c above the upper end of the needle case e the lower end of the case being closed by a friction cap g. A cover a formed as a thimble may be provided to close the upper end of the device.