baber/WOPTO huggingface dataset:
Patent GB-233959-A (GB)
Title: Improvements relating to paraffin and other hydrocarbon lighting lamps
IPC: F21V37/00
Filed: 1924-09-20
Abstract: 233,959. Rostaing, P. Sept. 20, 1924. Wick - burners, annular, flame -regulating in. - In a paraffin or like lamp having an annular wick, the wick tubes 30, 31 are made of drawn metal and have an opening 32 through which passes air for the interior flame. The wick may be raised by the usual toothed mechanism or by means of a milled knob carrying a helicoidal thread 37 engaging a toothed wheel 38 keyed on the worm 33 which displaces a nut 34 carrying flexible tongues 35 with free toothed ends for engaging the wick, the nut 34 being guided by the bottom extensions 39 of the inner wick tube 30.
Patent GB-402889-A (GB)
Title: Refrigerated containers for the preservation and transportation of ice cream, liquids and other substances
IPC: F25D3/00
Filed: 1932-08-09
Abstract: 402,889. Receptacles for cooling. ELLIOTT, E. S., 28, Vincent Gardens, Dollis Hill, Middlesex. Aug. 9, 1932, No. 22289. [Class 29.] A vacuum-insulated receptacle for storing or transporting ice cream &c. comprises inner and outer metal vessels A, B soldered to a brass ring H having an internal flange H<2> upon which is sprung the lip I of a removable inner rubber or metal container J adapted to receive a cream carton K. The outer surface of the vessel A is highly polished or plated and the inner surface of the vessel B coated with a corrosion resistant metal, e.g. tin, aluminium, or nickel. The space between the vessels A, B is evacuated and that between the container J and the vessel B filled with ice &c. The receptacle is provided with a polished metal cover filled with cotton wool.
Patent GB-462531-A (GB)
Title: Improved method of and apparatus for decomposing ammonia
IPC: C01B3/04
Filed: 1935-08-07
Abstract: <PICT:0462531/III/1> In apparatus for decomposing ammonia into nitrogen and hydrogen, the catalyst chamber 2 is heated by radiation from an electric heater 1 which is completely isolated from the ammonia or the products of decomposition.  The dimensions of the catalyst chamber and of the heater and their distance apart are such that the heat transferred to the catalyst is not more than 600, and preferably not more than 450, Kg. calories per square foot per hour, the working temperature ranging from 540--570 DEG  C.  The incoming ammonia is preheated by the reaction gases by passage through the annulus of double wound coils 7 and 8, embedded in slag wool, and insulated from the central space by a sillimanite cement lining.  To avoid oxidation of the outer walls of the tube 2, carbon rods 10 are provided to maintain an atmosphere of carbon dioxide.  Suitable catalysts comprise fused iron oxide granulated and mixed with small amounts of aluminium oxide and magnesium oxide.  To prevent disintegration or sintering due to local overheating, the heat distribution through the catalyst is assisted by metallic fillings, e.g. turnings, shot, nails, gauze, &c., either in alternate layers with the catalyst or uniformly distributed through it, so that no portion of the catalyst is more p  than \ba1/2\bein.--1in. away from a good conductor of heat.  To minimize nitriding of the inner walls of the catalyst chamber, the catalyst is retained in contact therewith by providing a plug of steel turnings in each turn of the coil 2.  A thermostat 9 is provided to control the heater 1, and a thermocouple 14 may be provided to give an indication of overheating. In the arrangement shown, the joints J1 and J2 are located in a comparatively cool and accessible portion of the apparatus.  The coil 2 may be made from an alloy steel containing chromium, nickel, tungsten and titanium.  Before use, the catalyst is reduced by passing hydrogen, sulphur free coal gas or ammonia through the coil 2.  The catalyst chamber may also be in the form of a narrow annulus, having radiant heaters both sides.
Patent GB-1311911-A (GB)
Title: Resistance-bridge
IPC: H03C3/08
Filed: 1970-05-11
Abstract: 1311911 Strain gauge bridge network PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 May 1970 [14 May 1969] 22567/70 Heading G1U A resistance strain gauge bridge 1, 2, 3, 4, in which diametrically opposite arms vary in similar directions, is balanced by injecting current from a source kU s  via a photo-resistor 8, controlled 11, 16, by the out-of-balance signal from the bridge, into a junction 13 of the bridge. The network has the property that if the resistances of the strain gauges vary by #, so that R 1  = R 4  = R + # and R 2  = R 3  = R - #, then the current through the resistor 8 is approximately a linear function of # irrespective of the value of k (providing k is non-zero) the error being of the order of #<SP>3</SP>. It is said that the network can be used to control the frequency of an oscillator.
Patent GB-262514-A (GB)
Title: Improved signalling device for road vehicles
IPC: B60Q1/34
Filed: 1925-09-10
Abstract: 262,514. Minshall, F., and Trow, E. Sept. 10, 1925. Road-traffic signals on vehicles.-A hand &c. 40 is mounted on a carrier 16 adapted to be rotated about its axis 15 and moved bodily by a second carrier 14 mounted in a support 11 rotatable about an axis at right-angles to the axis of the carrier 14. With the hand &c. in a horizontal position, the Bowden wires 19 may be operated by a hand-lever 1 to cause the hand to point to the right or left, and operation of a brake-pedal 47 releases a Bowden wire 36 and allows a spring 37 to rotate the carrier 14, bring- ing the hand to a vertical position while turning it through a right-angle by the engagement of toothed quadrants 41, 42 on the support 11 and carrier 16 respectively. The foot-operation may be dispensed with by pivoting the lever 1 at 30, as shown in Fig. 11, and connecting to it the wire 36, a slot being formed in the plate 3 to accommodate the wire when the lever is moved to either side to operate the wires 19. The hand 40 may be of hollow translucent material provided with an interior lamp 52.
Patent GB-800866-A (GB)
Title: Improvements in or relating to hydrocarbon sweetening process
IPC: C10G27/04
Filed: 1955-08-05
Abstract: Petroleum distillates containing mercaptans and phenolic compounds are purified by (a) washing with aqueous caustic alkali solution so as to produce a hazy sour distillate phase and an aqueous phase comprising caustic alkali, cresylates and mercaptides, (b) removing the occluded aqueous phase to leave a dephenolated sour distillate, (c) contacting such sour distillate with aqueous solution containing caustic alkali and a gallic acid catalyst, and with free oxygen, and (d) separating the sweet distillate from aqueous solution.  The dephenolation step and the use of gallic acid (3,4,5-trihydroxybenzoic acid) in the oxidation step avoids the formation of oilsoluble mercaptyl quinones, which would discolour the sweet distillate; this is particularly useful when treating sour cracked naphthas, whether thermally or catalytically cracked.  The aqueous caustic alkali solution preferably contains 20-30 per cent NaOH in a volume ratio of 20-100 per cent that of the naphtha at slightly above atmospheric temperature.  The gallic acid is present in 0.05-0.5 per cent by weight and the oxygen may be supplied as air, the oxidation step being effected at 100-160 DEG  F.
Patent GB-480175-A (GB)
Title: Game apparatus
IPC: A63F1/06
Filed: 1936-08-17
Abstract: 480,175. Game apparatus. FREIMAN, M., and STONE, J. E. Aug. 17, 1936, No. 22640. [Class 132 (ii)] A race game is played with a pack of cards as described in Specification 438,579 and a board A marked with consecutively numbered horizontal tracks 1 ... 10 divided by vertical lines B into divisions each bearing two coloured numbers C, corresponding to the card markings, on a plain or coloured background, or the colour pertaining to each track division may be indicated alongside the division. Each player draws a numbered chip to indicate which track to use, and transparent markers, Fig. 4, are then advanced along the tracks according to the cards as they are turned up from the pack.
Patent GB-245190-A (GB)
Title: Improvements in apparatus for use in the carbonization of fuel
IPC: C10B1/04
Filed: 1924-09-25
Abstract: 245,190. Illingworth, S. R., Illing worth Carbonization Co., Ltd., Dempster & Sons, Ltd., R., and Toogood, H. J. Sept. 25, 1924. Retort furnaces.-In a vertical netort setting comprising nests of metal retorts, the heating flues are formed by tubes of refractory material extending adjacent the retorts, each individual tube forming a separate unit so that a defective tube can be withdrawn and a new one inserted. In the setting shown the nests of retorts are built up of H-section bars 10 as described in Specification 223,624, and are situated between tiers of heating flues formed of refractory tubes 15. As shown there are two sets of tubes 15 between adjacent lines of retorts, but a single set may be used. The setting includes a producer 17 the gas from which passes to a vertical flue 19 and thence through vertically-distributed damper-controlled ports 23 to combustion flues 25. which are divided bv horizontal partitions so that the heating of the retorts may be varied in the different zones. The air for combustion is supplied through a regenerator 27 having a section corresponding with each zone and the supply is controlled by dampers 220. Alternative burners 24<1> are provided for coal gas firing. The products of combustion from the flues 25 pass upwards in series through the tubes 15 to a top flue 16 and thence down through the regenerator to the exhaust flue. When smokeless fuel of high combustibilitv is desired the upper parts only of the retorts are heated, and air for cooling the charge is fed to the lower tubes 15, while when it is desired to produce fuel of considerable density heating gases are passed through all the tubes 15. the lower ends of the retorts being maintained at about 900‹ C. and the upper ends at about 600‹ C. In the latter case the distillates are taken off towards the lower ends of the retorts. The tubes 15 may be built up of lengths jointed together by internal ferrules. Charging and discharging.-Coal is fed from bunkers 30 having rack and pinion operated doors 39 to travelling hoppers 31 terminating in shoots 33 controlled by doors 330, and from these shoots the coal passes to hoppers 34 having discharge tubes 35 corresponding with the retorts. The hoppers 34 are vertically movable so that they can be lifted clear of the retorts after the charging operation to allow closing of the retort tube. The coked fuel is discharged into a cooling chamber under control of a pair of sector-shaped doors. In a modification the discharge is effected continuously by a reciprocating inclined plate. Specifications 164.104, 175,888, 186,085. 187,328, [all in Class 55 (i), Coking &c.], and 244,505 are referred to.
Patent GB-877251-A (GB)
Title: Improvements in or relating to an annular combustion chamber for a gas turbine engine
Inventor: WILLIAMS DAVID EYRE
IPC: F23R3/38
Filed: 1959-07-02
Abstract: 877,251. Rotary oil burners. BRISTOL SIDDELEY ENGINES Ltd. July 4, 1960 [July 2, 1959], No. 22709/59. Class 75(1). [Also in Group .XII] An annular combustion chamber for a gas turbine engine comprises an annular flame tube 3, 4 disposed within an outer air casing I, 2, a rotatable disc-like element 7, 8 being mounted at the upstream end of the flame tube and means being provided whereby liquid fuel can be introduced to the downstream surface of the disc element, the fuel being caused to flow as a film thereon and to mix in a stream of air entering the flame tube in the region of the periphery of the disc element. Fuel is supplied through pipes 10, to an annular groove 9 formed at the upstream face of the disc 7, 8 and then flows through passages 12 into an annular groove 13 formed at the downstream face of the disc 7, 8 by a ring member 14 secured thereon. The fuel then flows radially outwardly across the downstream face of the disc 7, 8 past blades 15 secured at the periphery of the disc, these blades producing a recirculatory motion of the air entering through inlets 16 in the outer.wall 4 of the flame tube. Air passage means are provided through the disc 7, 8 radially inwardly of the fuel supply means and comprises a series of air inlet pipes 19 communicating with apertures in the disc 7, 8 and a series of discharge pipes 20. The inlet ends of the pipes 19 are disposed parallel to the face of the disc 7, 8 and open in the direction of rotation of the disc, and the outlet ends of the pipes 20 are directed radially outwardly. The air discharging from the pipes 20 is deflected parallel to the combustion chamber axis by means of the curved surface 27 of the ring member 14. In a second embodiment, the outlets from the air discharge pipes 20 are merged into a common annular outlet.
Patent GB-1347363-A (GB)
Title: Automatic towel winder
IPC: B65H18/10
Filed: 1971-04-19
Abstract: 1347363 Winding webs STEINER CO LAUSANNE SA 19 April 1971 [25 March 1970] 22781/71 Heading B8R An automatic towel winder comprises a frame supporting a plurality of winding units in staggered relationship (Fig. 1, not shown) and a conveyer assembly for feeding a plurality of towels respectively to the winding units along parallel side-by-side lanes. Winding units.-A constant torque motor 155 drives a hollow mandrel 160 provided with perforations 165. The leading edge of a towel is fed over guides to the mandrel and suction is applied to the perforations 165 whereby the towel is urged against the mandrel to initiate winding thereon (Fig. 10, not shown). When the roll is fully wound an ejector plate 185 is actuated to strip the completed roll from the mandrel, the roll being received by a receptacle 177. In a modification (Figs. 18 and 19, not shown), all the winding units are driven by a single motor associated with two line shafts. Lateral guiding.-Each towel passes over a roller (120) which pivots, under the control of a sensor, to correct for lateral deviations of the towel from a desired path. The sensor comprises a plate (125) which straddles the towel and which is provided with depending wings (128) engageable by the edges of the towel (Figs. 13 and 14, not shown). Control apparatus.-The initiating of winding and the ejection of completed rolls are effected automatically by a control system responsive to detectors which are associated with the feed conveyer assembly and which sense the leading and trailing ends of the respective towels. The detectors each comprise an electric switch having a movable contact in the form of a generally hook-shaped wire extending into the path of the towel (Fig. 10, not shown). Suitable arrangements for the control circuitry are described  with reference to Figs. 21 to 23 (not shown).
Patent GB-260718-A (GB)
Title: Improvements in cleansing preparations
IPC: C11D7/08
Filed: 1925-09-12
Abstract: 260,718. Scriven, H. A., and Guise, B. F. G. Sept. 12, 1925. Cleansing-compositions especially suitable for cleaning stone, lavatory pans, and enamel ware consist of 20 fl. oz. of concentrated hydrochloric acid, 2 fl. oz. of water, and 1 oz. of sodium chloride.
Patent GB-863201-A (GB)
Title: Detachable device for securing a prismatic object in a groove in a carrier
IPC: B23C5/22
Filed: 1959-07-02
Abstract: 863,201. Wedges. WALLRAMIT HARDMETAAL MAATSCHAPPIJ N.V. July 2, 1959 [July 4, 1958], No. 22817/59. Class 89(2). [Also in Group XXII] A clamping-device for a blade 4 in a milling- cutter &c. (see Group XXII), comprises a screw 11 in a wedge-block 10 seated in a U-, or an L-shaped member 9. As the screw 11 is tightened, the wall 12 of the member 9 is forced against the blade 4. Specification 716,016 is referred to.
Patent GB-908504-A (GB)
Title: Process for the production of new glycols
IPC: C07C31/18
Filed: 1959-07-03
Abstract: The invention comprises glycols of the general formula <FORM:0908504/IV (b)/1> in which R1 represents an alkyl radical having not more than 6 carbon atoms or a cycloalkyl radical having from 3 to 8 carbon atoms, R2 and R3 represent alkyl radicals having not more than 4 carbon atoms, or R1 and R2 together may form an alkylene radical, and R4 represents an unsaturated aliphatic hydrocarbon radical having 2 or 3 carbon atoms.  They may be prepared by reacting, preferably in an organic solvent, an a -hydroxy ketone of general formula <FORM:0908504/IV (b)/2> with an organometallic compound prepared from magnesium or zinc and a compound of formula Hal-CH2-R4, in which Hal represents chlorine, bromine, or iodine, followed by hydrolysis. If desired, compounds in which R4 contains a triple bond may be catalytically hydrogenated to reduce the triple bond to a double bond.  The a -hydroxy ketones used as starting materials may be obtained from ketones of formula R1COR2 by converting them to the corresponding cyanohydrins, blocking the hydroxy group, e.g. by acylation, reacting the products with alkyl magnesium halides of formula R3MgHal and hydrolysing the products. Alternatively when R2 and R3 are both methyl groups the starting hydroxy ketones may be obtained by condensing ketones of formula R1COCH3 with alkali metal acetylides and adding water to the ethinyl methyl carbinols so obtained.
Patent GB-1224465-A (GB)
Title: Improvements in or relating to fuel element assemblies for nuclear reactors
Inventor: MANTLE PAUL LANGFORD
IPC: G21C3/322
Filed: 1967-05-17
Abstract: 1,224,465. Fuel elements. CENTRAL ELECTRICITY GENERATING BOARD. 17 May, 1968 [17 May, 1967], No. 22885/67. Heading G6C. A fuel element assembly comprises a cluster of ribbed fuel pins arranged parallel to one another in a reactor coolant channel, the ribs of adjacent pins being spaced apart to permit of coolant flow in an axial direction through the channel, some of the pins having helical ribs with a left-handed helix and some having helical ribs with a right-handed helix to impart transverse components to the longitudinal flow. The external surfaces of the fuel pin cans are smooth apart from multi-start helical ribs of square or rectangular section. The ribs are multi-start helices, e.g. 12-start helices with a helix angle of the order of 33 degrees, and cause coolant mixing transversely of the channel and hence give a more uniform temperature distribution in the fuel element cluster.
Patent GB-804080-A (GB)
Title: A new vinylphosphoric acid ester
IPC: C07F9/113
Filed: 1956-07-25
Abstract: The invention comprises O,O-dimethyl-O-2-monochlorovinyl phosphoric acid ester of the formula (OCH3)2P(O).O-CH = CHCl.  It may be obtained by reacting dichloroacetaldehyde with trimethyl phosphite or with a salt of dimethyl phosphite.  The reaction is preferably carried out in an inert organic solvent such as ether, benzene or toluene at temperatures from 0 DEG  to 100 DEG  C.  In an example dichloroacetaldehyde in benzene is added dropwise at 20 DEG  C. to trimethylphosphite dissolved in benzene and the temperature is maintained at 50 DEG  C. by cooling.  The mixture is then stirred for an hour, dried over sodium sulphate and then distilled to yield the ester as a colourless water-miscible oil. The ester is stated to have pesticidal properties and may be used in admixture with an inert diluent or carrier (see Group VI). Specification 783,697 is referred to.ALSO:A pesticidal composition comprises O,O-dimethyl - O - 2 - mono - chlorovinylphosphoric acid ester (see Group IV (b)) together with an inert diluent or carrier.  The composition may be in the form of an aqueous solution prepared by diluting with water a mixture of the ester in an organic solvent and containing an emulsifying agent. Specification 783,697 is referred to.
Patent GB-1346542-A (GB)
IPC: H05B6/30
Filed: 1972-05-17
Abstract: 1346542 Non-crucible zone melting SIEMENS AG 17 May 1972 [8 June 1971] 23063/ 72 Heading BIS A monocrystalline semiconductor rod is made by forming a molten zone in a verticallymounted starting rod by means of a singleturn induction heating coil surrounding the rod and causing the zone to pass at least once through the rod by effecting relative movement between the starting rod and the heating coil and wherein the ratio of the inner diameter of the coil to the diameter of the rod to be produced is at least 1.25:1. During the melting process the rod may be rotated and the axial length of the molten zone may be at least as great as the diameter of the semiconductor rod to be formed. The treatment forms a rod substantially free from dislocations and swirls.
Patent GB-442674-A (GB)
Title: Improvements in knitted fabrics and in the means for and method of producing same
IPC: D04B1/06
Filed: 1934-08-09
Abstract: 442,674. Knitting. STEIN, H. P., 6, Arthur Street, Nottingham. Aug. 9, 1934, No. 23071. [Class 74 (ii)] The extremity of the hook or beard of a knitting-needle is turned out and back upon itself until the tip 13 crosses the beard shank 12 to form an elongated eye 18. The portions are spaced apart at the point of crossing to allow the passage of thread between them. A groove 15 in the needle stem 10 is deep enough to receive the tip 13 and the whole or part of the eye 18, to permit of casting off. In front elevation, the looped part lies within the thickness of the needle stem behind it. In forming a twisted loop fabric, Fig. 11, after the old loop has been cleared down the stem beyond groove 15, a new thread is laid and sunk into loops, and moved to a position beneath the beard, which is then pressed, and the old loop knocked over. The beard is again pressed, and the loop on the stem beneath the beard is moved inwards over the point 13, and into the eye 18. The thread now extends as in Fig. 4A. The loop is moved to the extremity 12<a> of the eye, changing into a twisted loop as it does so, out along the shank 12, to the head 11, by a wheel or the like, and on to the needle stem, around which it becomes looped approximately one and a half turns. The beard now being open, this loop is pushed in along the needle stem by the action of another wheel, and is subsequently cast off over a new loop. Plain stitches may be produced on any needle by omitting the second pressing operation. An inclined wheel 22 having fabric-engaging spikes 23, may be used to slacken the fabric during movement of the loops along the needles.