baber/WOPTO huggingface dataset:
Patent GB-748970-A (GB)
Title: Contacting gasoline fractions with activated carbon
IPC: C10G45/30
Filed: 1953-09-15
Abstract: Diolefins present in a gasoline fraction containing mono- and diolefins are selectively hydrogenated by treatment, in the presence of an amount of naphthenes at least one third of the amount of diolefins, with an activated carbon at 430-630 DEG  F., 0-200 p.s.i.g. and a liquid space velocity of 0.5-10 v/v/hr. The activated carbon may be prepared from cane sugar, kelp, bagasse, coal, lignite, peat, sawdust, charcoal, corn cobs, molasses, coconuts, carbonized sulphuric acid sludge from the acid treatment of petroleum products, carbonized materials from cellulose manufacture, bones and blood. The activated carbon may be promoted with a small amount of a potassium compound, for example, potassium oxide, hydroxide and carbonate.  The gasoline may be thermally or catalytically cracked fraction; the naphthene may be naturally present in the gasoline or be added thereto: naphthenes specified are cyclopentane, methylcyclopentane, 1,2-dimethylcyclopentane, cyclohexane and methylcyclohexane.  The gasoline may be contacted with the carbon in a fixed bed, moving bed or a fluidized process.ALSO:Diolefins present in a gasoline fraction containing mono- and diolefins are selectively hydrogenated by treatment, in the presence of an amount of napthenes at least one-third of the amount of diolefins, with an activated carbon at 450-630 DEG F., 0-200 p.s.i. and a liquid space velocity of 0.5-10v/v/hr.  The activated carbon may be prepared from cane sugar, kelp, begasse, coal, lignite, peat, sawdust, charcoal, corn cobs, molasses, coconuts, carbonized sulphuric acid sludge from the acid treatment of petroleum products, carbonized materials from cellulose manufacture, bones and blood.  The activated carbon may be promoted with a small amount of a potassium compound, for example, potassium oxide, hydroxide and carbonate.  The gasoline may be a thermally or catalytically cracked fraction; the naphthene may be naturally present in the gasoline or be added thereto; naphthenes specified are cyclopentane, methylcyclopentane, 1, 2 dimethylcyclopentane, cyclohexane and methylcyclohexane.  The gasoline may be contacted with the carbon in a fixed bed, moving bed or a fluidized process.
Patent GB-790744-A (GB)
Title: Electrical connector for aluminium wire
Inventor: REDSLOB JEAN JACQUES
IPC: H01R4/20
Filed: 1956-08-21
Abstract: 790,744. Wire terminals. AMP, Inc. Aug. 21, 1956, No. 25569/56. Addition to 755,272. Class 38 (1). The connector according to the parent Specification is modified in that the cup 6 containing the corrosion-inhibiting material has a substantially constant cross-section throughout its length for use with an uninsulated conductor. Fig. 7 shows a modification wherein the cup is omitted, the corrosion-inhibiting material being placed directly in the ferrule 2 which is sealed at its inner end by a disc 3 and at its outer end by the puncturable cap 32. Said outer end may be enlarged to receive the conductor insulation. Specification 673,198 also is referred to.
Patent GB-962268-A (GB)
Title: Improved circuit arrangement for a.c. machines
Inventor: WRIGHT OWEN EDGAR
IPC: H02P9/42
Filed: 1961-07-14
Abstract: 962,268. Starting prime movers; control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 29, 1962 [July 14, 1961], No. 25628/61. Headings H2H and H2J. A synchronous machine 1 operates as a motor to drive gas turbine 2, and as an alternator driven by the turbine to supply current to a constant frequency network 7. During motoring operation, the machine 1 is supplied through frequency changer 6 comprising semiconductor converters, a three-phase reference voltage being supplied to the frequency changer from tachometer generators 3, 3a. The voltage of the power supply from the frequency changer to the machine is phase-advanced so that the machine accelerates. The tachometer generators are energized with current of the same phase number and the same frequency as the polyphase source, the phase rotation in one of the tachometer generators being opposite to that in the other. When the machine 1 operates as an alternator its output frequency is reduced by the action of the frequency changer to the value required by the network 7. Control signals for the frequency changer are now supplied from line 11, reference signals being supplied from a local oscillator. When several turbines are equipped as described, a common reference signal line is provided.
Patent GB-1153197-A (GB)
Title: Improvements in or relating to the Manufacture Of Foundry Moulds and Cores
Inventor: GRAY DOUGLAS WILLIAM
IPC: B22C15/24
Filed: 1966-06-20
Abstract: 1,153,197. Moulding machines. J. W. JACKMAN & CO. Ltd. 5 June, 1967 [20 June 1966]. No. 25813/66. Heading B3F. Apparatus for manufacturing moulds and cores from a sand and thermosetting resin binder mix, comprises mould halves 20 and a base shuttle 13 that are heated by radiant heaters 24, 25 that are made in the form of a hollow chamber divided into compartments (26) (Figs. 3 and 4, not shown), each having porous refractory walls (34) that allow a combustible gas to permeate therethrough and burn uniformly over their outer surface. In operation, the two mould halves 20 are closed together by motors 21 and are then raised by a ram (18) (Fig. 2, not shown) to connect with a granular material supply nozzle 22 in a blow head 23. The mould halves are then lowered and separated and the finished cores are moved sideways along a table (11) by the base shuttle 13 alternately in each direction.
Patent GB-676981-A (GB)
Title: Improvements in and relating to vehicle bodies
IPC: B60R21/09
Filed: 1949-10-07
Abstract: 676,981. Handles; knobs. VACHET, J. Oct. 7, 1949. No. 25828/49. Drawings to Specification. Class 52 (i). [Also in Group XXXII] To protect the occupants of vehicles against forcible impact with projecting fittings such as knobs or handles the vehicle body is recessed behind such fittings and the latter are faced with cushioning material and mounted on springs so that they can move into the recess. Specification 665,057, [Group X], is referred to.
Patent GB-756722-A (GB)
Title: Improvements in shaft furnaces for steam generators
IPC: F23H3/02
Filed: 1951-11-05
Abstract: 756,722. Steam-generator furnaces. VORKAUF, H. Nov. 5,1951 [Nov. 6,1950 ; June 1, 1951 ; June 1, 1951],No. 25829/51. Class 51 (1). In a steam-generator furnace in which combustion air from a chamber 4 passes transversely through a column of fuel contained in a shaft 1 bounded by water tube walls 2, 3, the shaft 1 communicates at the top with a fire chamber 9 fitted with a preliminary grate 5 on which fresh fuel fed from a hopper 8 is degasified and partially ignited by the burning gases passing from the shaft to the fire chamber, the latter also receiving hot gases which pass upwardly between the tubes 3 from a chamber 11 behind the shaft 1. The whole of the combustion products pass from the chamber 9 downwardly through the main boiler pass in which are disposed the boiler tubes 12, superheater 13 and economizer 14. In the modification shown in Fig. 2, the shaft is bounded by inwardly and downwardly inclined superposed tubular surfaces 23, 24 and secondary air is supplied through a pipe 25. Fig. 5 shows a further construction in which the preliminary grate is formed of water pipes 32 connected into the boiler circulation system, the pipes being of annular cross section and each fitted, in the inner hollow space, with a ram 33, Fig. 6 ; the rams are operated to loosen the fuel passing to the shaft 1 by mechanism 35 which also actuates the fuel slide valve 36.
Patent GB-1313802-A (GB)
Title: Crop cleaning apparatus on combine harvesters
IPC: A01D75/28
Filed: 1971-04-19
Abstract: 1313802 Combine harvesters DEERE & CO 19 April 1971 [2 April 1970] 25852/71 Heading AIF A cleaning section, Figs. I and 2, consists of two sieves which are pivotally mounted to a sieve box of a harvestor at 26, 27, 28 and 29, 30, 31. Between the two sieve halves there is a compensating shaft 36 which is connected to the sieve halves by a chain sprocket arrangement or a system of curved racks 32, 33 which mesh with the gear wheels 34 and 35 on the shaft 36. The arrangement is such that on tilting the harvestor in a transversely manner relative to its direction of travel, the sieves 24 and 25 remain horizontal. This ensures even distribution of material over the sieves. The compensating action may be operated by electronic means connected to servo motors, or a hydraulic system which drives shaft 36. Struts 37, 37a and bearing 38 enable the shaft 36 to undergo oscillating movement.
Patent GB-732258-A (GB)
Title: Improvements relating to pulse generating circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/55
Filed: 1952-10-15
Abstract: 732,258. Condenser arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 2, 1953 [Oct. 15, 1952], No. 25880/52. Class 38 (4). [Also in Group XL (c)] A pulse generator of the type in which a reservoir circuit is charged via an inductor and then discharged through a discharge tube under the control of trigger pulses, comprises a protective circuit which, in the event of a reverse voltage being built up due to a fault developing in the pulse generator, prevents the discharge tube from being triggered for a predetermined period to allow the excess voltages to discharge. The Figure shows the application to a pulse generator cricuit for modulating a magnetron load M in which the delay line L is charged from a D.C. supply via inductor H and rectifier D1 and is periodically discharged through the auto-transformer T when the ignition I is fired by pulses from the trigger circuit. Normally point A is at a positive voltage and capacitor C1 is shunted by diode D2 but if due, for example, to magnetron M short-circuiting, a reverse voltage is built up at point A then diode D2 is cut-off and capacitor C1 is charged via diode D3, when the voltage at point A again goes positive, diode D2 again conducts and D3 is cut-off so that a positive voltage is applied to the trigger circuit to render it inoperative, thus holding the ignition I cut-off for a predetermined period. Reference has been directed by the Comptroller to Specification 692,405, [Group XL (c)].
Patent GB-303405-A (GB)
Title: Improvements in toothed driving gear for transmitting motion in forward and reverse directions
Filed: 1927-10-01
Abstract: 303,405. Paget, F., and Moore, J. R. Oct. 1, 1927. Reversing-gearing, automatic, suitable for washing-machines, comprises an epicyclic train which is moved bodily, to change direction of drive, by means of a connecting-rod and cam. A shaft 14, Fig. 3, constantly drives a wheel 11, which is loose on a countershaft 2 and keyed to the first gear 4 of the epicyclic train. The last or driven gear 10 of that train is secured to the shaft 2. The connecting planet gears 6 are carried by a doubly-coned drum 8 adapted to be moved axially with the shaft 2. The shaft 2 is automatically reciprocated so that the drum 8 is alternately clutched to the wheel 11 for solid forward driving, and engaged with a fixed female cone 9 for reversed driving, a wheel 32 communicating the drives to the machine. The wheel 11 through a sleeve 5 and worm gearing constantly drives a cam 27 which engages bowls 29, Fig. 4, on a rod 28 and so oscillates a crank 19, Fig. 6. This through a shaft 18, pinion 17, and circular rack 16 reciprocates the shaft 2. The rod 28 may be disconnected from the crank 19 by turning a cam 30, which brings a pin 28<b> into a slot 28<a>, so allowing lost motion. To effect reversal by hand, a handle 21, Fig. 7, is moved over a fixed quadrant 22 so operating cam 30, and manual effort is applied to a lever 40 which turns the pinion 17.
Patent GB-1501098-A (GB)
Title: Preparation of hop oil
IPC: C12C/
Filed: 1974-06-11
Abstract: 1501098 Distilling hops BREWING PATENTS Ltd 21 April 1975 [11 June 1974 8 Oct 1974] 25944/74 and 43642/74 Heading BIB [Also in Division C6] Hop oil mixed with water is obtained by steam distilling hops under vacuum at a temperature not exceeding 50‹C and cooling the distillate to a temperature less than 0‹C. The hops may be mixed with water or may be in an atmosphere of steam. Distillation temperatures of 10‹ to 30‹C are preferred and the distillate may be cooled to, e.g. -78‹C in acetone/solid CO 2  baths.
Patent GB-1467873-A (GB)
Title: Manufacture of ready-cooked rice
IPC: A23L7/196
Filed: 1974-06-11
Abstract: 1467873 Pre-cooked rice M ANDO 11 June 1974 25945/74 Headings A2B and A2E Pre-cooked rice is prepared by soaking rice grains in water, gelatinising by boiling or steaming, adjusting the moisture content to 18-70%, pressing e.g. between rollers having a nip of 0.1-10 mm or between metal plates, adjusting the moisture content of the pressed rice to 8-25%, and puffing by frying in oil at a temperature of 130-200‹C. The rice can be made ready-to-eat by treatment with boiling water, and may be mixed with powdered soup, mushrooms, shrimps, eggs, parsley or peas. The rice may be de-oiled e.g. by centrifuging, after puffing. The soaked rice may be mixed with a surfactant e.g. glycerine or sugar esters, edible oil or talc before gelatinisation, and the gelatinised rice may be dried by mixing with e.g. wheat or rice flour, starch, cellulose powder or talc.
Patent GB-674183-A (GB)
Title: Improvements relating to devices for recording writing, sketches or the like
Inventor: ARMOUR ALAN MARSH
IPC: B41M5/124
Filed: 1949-10-10
Abstract: 674,183. Writing-tablets. METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 25, 1950 [Oct. 10, 1949], No. 25969/49. Class 146 (ii). In a writing-tablet of the kind comprising a surface of waxy material 3 such as that known under the Registered Trade Mark " Plasticine " in contact with a sheet of material such as paper 4 which is absorbent to the waxy material so that when local pressure is applied to the opposite face of the paper a mark appears which may be obliterated by separating the paper 4 and material 3, a disc or strip 8 of magnetic material is located between the materials 3, 4 and can be moved by an external magnet to cause the obliteration. In the form shown for marking on the front, the paper is covered by a sheet 5 of flexible transparent material, and a rigid backing 2 of, for example, non-magnetic sheet metal is provided. For marking on the back face, the sheet 5 is replaced by a rigid transparent sheet e.g. glass, and the backing 2 is replaced by a flexible transparent sheet.
Patent GB-1125761-A (GB)
Title: Improvements in electrical control switches
Inventor: ELSDON MICHAEL BISHOP
IPC: B23K7/10
Filed: 1964-06-23
Abstract: 1,125,761. Switches retained set and freed mechanically. BRITISH OXYGEN CO. Ltd. 11 June, 1965 [23 June, 1964], No. 26011/64. Heading H1N. In a limit switch device of the kind wherein a cam is driven in correspondence with the travel of a movable element, the operating point is manually adjustable by means of a knob coaxial with the cam which alters the angular position of the cam follower. The particular embodiment is described for control of two flame cutting heads (not shown) moved perpendicularly to the plane of the drawing by means of longitudinal racks 34 and 36 driven by respective electric motors (not shown). These racks engage pinions 38 and 42, coupled respectively by coaxial shafts 40 and 44 to pinions 22 and 32, and thereby rotate crown wheels 18 and 28 coaxially carried on a fixed shaft 10. Cams 12 and 14 are respectively secured to wheels 18 and 28 and operate followers 50 and 52 mounted on bell-crank levers 54, 80 and 56, 82, respectively engaging levers 84 and 96 to actuate a switch 90 against compression spring 94. Alternatively levers 84 and 96 may be independently pivoted to act on two respective switches. The levers 84 and 96 are engaged by arms 80 and 82 at points lying on the axis of shaft 10 thus allowing the bellcranks, and therefore the followers 50 and 52, to be angularly adjustable (over a limited range) by means of respective knobs 74 and 66, coaxial with shaft 10. A further switch 122 is operable by a lever 114 which is lifted by a roller 112 engaging an annular track 124 when a striker 100 on wheel 28 impinges on a follower 110 pivoted on wheel 18. Thus the switch 122 is operated only when the cutting heads are in predetermined positions relative to each other, and may be used to avoid the risk of a collision,
Patent GB-680994-A (GB)
Title: Improvements in or relating to the preparation of ª-ª unsaturated cyclopolymethylenic ketones
IPC: C07C49/607
Filed: 1948-10-06
Abstract: a b -Unsaturated cyclopolymethylenic ketones, alkylated or not, and having 10-18 carbon atoms in the ring, are prepared by (1) dehydrating by heat a ketol of the formula <FORM:0680994/IV (b)/1> alkylated or not, in which n is 8-16; or (2) thermal decomposition of an ester of the formula <FORM:0680994/IV (b)/2> alkylated or not, in which R1 is an organic radical and n is 8-16.  The ketols of process (1) may be used in the pure or crude form (Specification 655,349). In examples: (1) thapsoin is dehydrated in the vapour phase at reduced pressure with an alumina on asbestos catalyst; the cyclohexadecenone may be reduced in presence of palladium or barium sulphate to give cyclohexadecanone.  Also in examples: (2) 15-methylcyclopentadecanol-2-one-1 is converted similarly to 15-methylcyclopentadecene 2,3-one-1, and (3) cyclodecanolone-1,2 is converted to cyclodecenone, the non-dehydrated product being separated by benzene and calcium chloride.  Also, (4) cyclopentadecanolone-1,2 is esterified with a mixture of lauric acid and lauryl chloride, and the ester is decomposed by heating at 250-300 DEG  C. in vacuo to give cyclopentadecenone.  Also, (5) cyclopentadecanolone-1,2 is heated in vacuo with naphthalene-b -sulphonic acid at 140-150 DEG  C. to give cyclopentadecenone.
Patent GB-1078787-A (GB)
Title: An optical indicator
IPC: F21S8/00
Filed: 1965-06-21
Abstract: 1,078,787. Visual landing aids for aircraft. M. PANERAI, and G. PANERAI. June 21, 1965 [June 22, 1964], No. 26094/65. Heading G . An optical indicator comprises an electro luminescent panel 2 arranged perpendicular to a predetermined direction, and an opaque screen in front of the panel provided with axial bores 7 which decrease in diameter from the periphery to the centre of the screen, so that the visibility of the whole panel is only possible when an observer, e.g. in an aircraft, is aligned with the direction within in an angle defined by the ratio of the diameter of the central bores to their length. A portion of the panel projects beyond the screen to define a circumferential band, protected by a transparent element 9, which is visible from all directions. The bores 7 may be divided into a number of concentric annular zones which have a number of bores of constant diameter.
Patent GB-1047751-A (GB)
Title: Solid solution polymer products
IPC: C08F2/44
Filed: 1963-07-02
Abstract: A composition comprises substantially anhydrous lithium perchlorate, a polyvinyl alcohol or acetal and a plasticizer therefor all in the same homogeneous phase.  The solid solution is made by heating a mixture of polymer and plasticizer until it is fluid, stirring in lithium per-chlorate and cooling.  Exemplified plasticizers are ethylene glycol, diethylene glycol and di-n-butyl phthalate.  The polymers exemplified are polyvinyl alcohol, polyvinyl butyral, and a partially saponified polyvinyl acetate which has been partially reacted with butyraldehyde.
Patent GB-170571-A (GB)
Title: Improvements in the production of electrolytic iron
IPC: C25C1/06
Filed: 1921-10-04
Abstract: 170,571. Soc. Le Fer. Oct. 19, 1920, [Convention date]. Iron, depositing. - An electrolyte prepared by stirring a solution of an iron salt such as the chloride in the presence of air until it assumes a brown colour and ceases to foam is electrolized with graphite or other insoluble anodes producing depolarization. When the electrolyte is passed through several vats in succession, insoluble anodes may be used in some only of the vats. The cathode may be rotated at a speed increasing with the current density. The temperature at which the electrolysis is carried out increases with the current density. Specification 16565/13 is referred to.
Patent GB-1478069-A (GB)
Title: Fans and similar devices with noise reduction
IPC: F04D29/66
Filed: 1975-06-20
Abstract: 1478069 Axial-flow fans &c. ROTRON Inc 20 June 1975 [2 July 1974] 26240/75 Heading F1C In a fan or the like, the trailing edge of each impeller blade has a series of notches 21 along the whole or a part of its length, each notch extending towards the leading edge of the blade, to cause turbulence at the exit from the blade, thereby to create pressure fluctuations over a wide frequency range at low intensity rather than at essentially a single peak frequency at high intensity. As shown, the notches 21 are of equal size and pitch but staggered on each trailing edge with respect to the other trailing edges by an amount less than the pitch so as to avoid the reinforcing effect of repetitive flow patterns. Instead of being V- shaped, the notches may be U-shaped or rectangular.
Patent GB-482300-A (GB)
Title: Manufacture of nitriles of the c-series containing oxygen
Filed: 1936-09-28
Abstract: Nritiles are produced by reacting methylvinyl ketone with hydrocyanic acid at -20 to +80 DEG  C. in the presence of an alkaline catalyst with the presence of a diluent if desired.  At 15-80 DEG  C. the product is levulinic nitrile; at -20 to 15 DEG  C. it is the nitrile of a -vinyl lactic acid.  In the examples potassium cyanide and carbonate are used as the catalysts.  The Specification as open to inspection under Sect. 91 mentions as alkaline catalysts potassium and sodium hydroxides, sodium carbonate and pyridine, and as diluents hydrocarbons such as benzene, toluene, pentane, hexane and cyclohexane and also ethers and chlorinated hydrocarbons such as ethylene chloride and trichlorethylene.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1156393-A (GB)
Title: Improvements in or relating to Mass Spectrometer Arrangements
Inventor: TALROZE VIKTOR LVOVICH
IPC: H01J49/04
Filed: 1967-06-07
Abstract: 1,156,393. Mass spectrometers. INSTITUT KHIMICHESKOI PHIZIKI AN SSSR. 7 June, 1967, No. 26282/67. Heading H1D. In a mass spectrometer, liquid to be analysed is transferred directly from a vessel 1 into a capillary leak 2 formed by the slot-shaped, flattened tip of a tube 3 so that vapours of the liquid are formed in the vacuum system 5 of the mass spectrometer. The tube 3 is of copper.
Patent GB-920610-A (GB)
Title: Improvements in aluminum-base alloys
Inventor: ABELES JOSEPH CHARLES
IPC: C22C21/00
Filed: 1962-01-02
Abstract: An aluminium alloy according to the parent Specification additionally contains one or more of Be up to 0.3% and Co, Cr, V, Ga, Sn, Ta, Nb or W up to 0.2% each.  The alloy may be used as a hardener or deoxidizer for molten aluminium, iron or copper.
Patent GB-1300509-A (GB)
Title: Improvements in and relating to print mechanisms
Inventor: EHRAT KURT
IPC: B41J9/52
Filed: 1971-04-19
Abstract: 1300509 Selective printing CIBA-GEIGY AG 19 April 1971 [7 April 1970] 26535/71 Heading B6F Means for checking that a print hammer 1 has carried out an impression movement under control of an electromagnet assembly 12 comprises an armature 7 of the electromagnet which is abruptly lifted off the electromagnet core 8 when the hammer 1 strikes a type 13, thereby inducing a pulse in the coil 33 of the electromagnet. In the embodiment shown, the hammer 1 is impelled by a spring 3 when the armature 7 is lifted off a latch 9 by the electromagnet assembly 12, and a projection 25 on the hammer disengages the armature 7 from the core 8 at the required moment. A second coil may be provided, in which the check pulse is induced. A bail 21 resets the hammer 1. In the other embodiments (Figs. 1, 2, not shown) the hammer (1) is impelled by an electromagnet assembly (12) through an armature (34). In the first modification (Fig. 1) a second armature (7) is provided which is detached from the electromagnet assembly to induce the signal therein, and in the second modification the first armature (34) is itself detached from the electromagnet assembly.