baber/WOPTO huggingface dataset:
Patent GB-1493934-A (GB)
Title: Puzzles
IPC: A63F9/10
Filed: 1975-03-04
Abstract: 1493934 Jigsaw puzzles R W M WHITLOCK 4 March 1975 [23 March 1974] 13210/74 Heading A6H A puzzle comprises a number of pieces to be fitted together to form a picture or design and at least one interconnecting member for interconnecting a plurality of the pieces to make the puzzle easier to complete. Jigsaw pieces have a covering of mesh material and are engaged by an interconnecting member having a similar covering. In Fig. 2, plastics pieces 10 have studs to engage sockets in a member 12. Wooden blocks 20, Fig. 3, are grooved to receive plastics tubing 22.
Patent GB-927631-A (GB)
Title: A process for the selective hydrogenation of liquid hydrocarbons of the gasoline boiling point range
IPC: C10G45/40
Filed: 1960-04-13
Abstract: Liquid hydrocarbons of the gasoline boiling range are selectively hydrogenated to remove gum-forming diolefins and acetylenes by trickling the liquid hydrocarbon, preferably in the absence of hydrogen sulphide and readily decomposable organic sulphur compounds, at temperatures below 50 DEG C., preferably 0-40 DEG C., in an atmosphere of hydrogen and in the presence of a catalyst carried on a macro-porous support having an intrinsic surface area of less than 50 m.2/g. and a water absorption capacity of at least 10% by weight. The gasoline is suitably one obtained from the pyrolysis of liquid or liquefiable hydrocarbons, and the hydrogen is either used per se, or for example as a gas mixture containing methane; the hydrogen content should however be greater than 60% by volume.  The hydrogenation is preferably carried out at a pressure of 10-50 atmospheres, and the hourly throughput of the hydrocarbon being treated is suitably 5-15 kg./litre.  The catalyst carrier, which may be pumice, lightly sintered magnesium oxide, tar-free wood charcoal, or, preferably, iron-free clay or sintered aluminium oxide should have an intrinsic surface area greater than 3 m.2/g.  The catalyst deposited on the carrier however generally has a large intrinsic surface area, i.e. 100-500 m.2/g.  Suitable catalysts are the noble metals of Group VIII of the Periodic Classification and CoMoO4 on Al2O3 which are preferably deposited on the carrier in amounts of 0,05-5%, but more suitably 0,1-1%, by weight of the carrier.  In Examples (1) and (2) respectively, dry iron-free clay shards and sintered aluminium oxide are impregnated with palladium chloride and the chloride then reduced to the metal by treatment with hydrazine hydrate.
Patent GB-858224-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F17/06
Filed: 1958-04-25
Abstract: 858,224. Washing-machines. SATURN A.G. April 25, 1958 [April 26, 1957], No. 13263/58. Class 138 (2). In a washing-machine having a container 1 for the liquid and the laundry with a rotary agitator disc 10 at the side for their circulation, the container 1 is circular and has a flat bottom 15 towards which the lower portion 3 of the wall is tapered, and on the inside of the portion 3 is mounted the disc 10 immediately adjacent the bottom 15, with which the plane of the disc forms an obtuse angle so that on rotation it moves the laundry with a circular motion around its extended axis and the vertical container axis, to be continuously withdrawn from it in a lateral direction. The container 1 also has a part 2 tapering towards the top joined to the part 3 along the greatest diameter through an overlap 4. The bottom 15 is single-walled and is formed from the lower end of the part 3, to form a support, by an extension 14 thereof, comprising a heating body 6 covered by a perforated plate 7, the electrical connections passing therethrough, and having therein the outlet communicating with the inside through the plate 7. The disc 10 is mounted directly for driving on the shaft of an external electro-motor 9 extending as shown, enclosed in a casing 8 on a flat portion 16 of the part 3 in an extension of which is provided switches 11 and 12 for the motor 9 and the body 6 and a signal lamp 13 for the heater 6 visible from above. The weight of the container 1 and of the switches is so distributed that the machine, when empty, remains approximately vertical when lifted by gripping the edge 5 at a point above the motor 9.
Patent GB-867950-A (GB)
Title: Improvements in or relating to apparatus for bringing two or more phases into counter-current with each other
IPC: B01F27/93
Filed: 1959-04-21
Abstract: Apparatus for bringing into countercurrent contact with each other a continuous liquid phase and one or more further phases, said apparatus comprising a tube 1 having a diameter of at least 15 cm., supply and discharge openings for said phases 2 and 5 respectively, a rotatable shaft 6 extending along the axis of the tube and a number of axially <PICT:0867950/III/1> spaced discs 9 mounted on the shaft at right angles thereto, each disc extending radially into close proximity with the wall of the tube to leave only a narrow space between the wall and the disc then being formed with openings 10 for the passage of the phases said openings in each disc being at least 1 sq. cm. in area and having a total area constituting 30 to 50% of the total area of each disc, the wall of said tube being unobstructed between said discs but there may be a grid 17, 16, at the top and bottom.  In the production of potassium nitrate from potassium chloride and nitric acid a suspension of potassium nitrate crystals is formed in an acid mother liquor; these crystals may be purified by a countercurrent treatment with an auxiliary liquid containing alkali-hydroxide.  The suspension is introduced by the top of the apparatus and the auxiliary liquid at the bottom; the purified crystals discharge at the bottom as a suspension in the auxiliary liquid.  When extracting lubricating oil with furfural a part of the lubricating oil to be extracted may be by-passed through 12 as the lubricant to lower shaft bearing 13 as the extract surrounding the bearing is corrosive.  In deasphalting heavy oil with propane a small part of the heavy oil may be passed to the bearing as it has a better lubricating effect than the asphalt at the bottom of the apparatus. Specification 659,241 is referred to.
Patent GB-471243-A (GB)
Title: Improvements in and relating to eel holders
IPC: A01K97/18
Filed: 1937-05-13
Abstract: 471,243. Eel-holders. TILLINGHAST, G. H. May 13, 1937, No. 13556. [Class 48] An eel-holder comprises a bell-mouthed slit tube 6 on the end of which is mounted a pair of tongs 15. The tube has clips 14 for securing the line which may be drawn along the tube and clear of the tongs. The tongs comprise a pair of spaced jaws 21, one of which is secured to the tube, and a central opposec jaw 22, the handles being pressed open by springs 24, 25, and held closed by loop 27.
Patent GB-1294427-A (GB)
Title: Improved peep-show
Inventor: HAWKYARD THOMAS WILLIAM
IPC: G09F19/10
Filed: 1971-05-07
Abstract: 1294427 Peep shows; toys made by folding paper T W HAWKYARD 7 May 1971 13644/71 Heading A6S A peep-show comprises an elongate tubular sleeve 1, an insert 8 slidable into the sleeve from one end thereof, the insert having a base portion 9 and bearing items 12 to be viewed, said items being in, or movable to, a position upstanding relative to the base portion; and an end wall adapted to close one end of the sleeve and having at least one peep-hole therein or being provided with means for example score-lines, whereby a peep-hole may be readily produced. In the embodiment shown, which may be assembled by the purchaser from a cardboard blank, the sleeve 1 has a cut-out 2 which is covered by translucent paper or plastics film 3, and two end walls 4, 5 one of which is provided with peep-holes. One of the end walls may be permanently secured in the closed position, for example by glued flaps 6. The items to be viewed are preferably in the form of flaps folded out from the base portion or side walls 10 of the insert and secured by tabs 17. Alternatively the end walls may be omitted from the sleeve 1 and the peep-holes be provided in an end wall of the insert. The flaps 12 may bear scenic, human, animal or cartoon figures and the walls 10, 11 of the insert and exterior walls of the sleeve may also carry a design. In a modified construction (Fig. 2A, not shown) the insert comprises a tube (108) having a flap (112), for example to depict an archway, depending from its top surface.
Patent GB-683558-A (GB)
Title: Improvements in or relating to crystal triodes
Inventor: REEVES ALEC HARLEY
IPC: H03F1/30
Filed: 1950-05-31
Abstract: 683,558. Semi-conductor amplifier circuits. STANDARD TELEPHONES & CABLES, Ltd. May 25, 1951 [May 31, 1950], No. 13662/50. Class 40 (vi). An electric signal translating circuit comprises a crystal triode and means for applying short stabilizing pulses between the collector and emitter electrodes during the normal transmission of signals, which do not interfere appreciably with the signals. The application of short pulses in this way inhibits changes in the characteristics and performance of the crystal triode due to variations in humidity, temperature or to other causes. In Fig. 1, input signals are applied via transformer 6 to the emitter 4 of the crystal triode which comprises a block 1 of N-type germanium, and amplified output signals are taken from transformer 8. The emitter and collector electrodes 4, 5 may consist of metal points or of metal films. The pulses are produced by means of a switch 10 which is arranged to charge condenser 11 from battery 12, and then discharge the condenser through the emitter and collector electrodes, the emitter being driven positive relative to the collector. The length and repetition rate of the pulses is selected so that they do not interfere with the normal signal, and chokes 13 and 14 may be provided to suppress the pulses in the input and output circuits. In an alternative arrangement short pulses from a pulse generator are supplied via a transformer, the secondary of which consists of two parts connected in series aid and separated by a condenser. In this embodiment, a plurality of crystal triodes may be supplied with pulses from the same generator. Crystal triodes operated in this manner are found to be more reliable than those placed in hermetically sealed containers. The invention can be applied to crystal triodes when used in other types of circuits, such as modulators, rectifiers or oscillatos. Specification 681,809, [Croup XXXIX], is referred to.
Patent GB-1522775-A (GB)
Title: Process for the selective ortho-alkylation of a phenol
IPC: B01J23/00
Filed: 1977-03-31
Abstract: 1522775 Phenol alkylation catalyst GENERAL ELECTRIC CO 31 March 1977 [13 April 1976] 13722/77 Heading B1E [Also in Division C2] Copper-chromium oxide catalysts used in the ortho-alkylation of phenols are promoted by the presence of a component selected from the oxides and hydroxides of Group I, II or III metals, Mn, Fe and mixtures thereof in an amount ranging from 3 to 95% by weight of the catalyst composition. The following promotors are added to copperchromium catalysts by conventional techniques in the Examples:- ZnO, Mg(OH) 2 , NaOH, Ca(OH) 2 , and Al 2 O 3 .
Patent GB-413471-A (GB)
Title: Improvements in electric amplifiers
IPC: H03F3/22
Filed: 1933-05-11
Abstract: 413,471. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GOSSLING, B. S., c/o General Electric Co., Ltd., Wembley, Middlesex. May 11, 1933, No. 13727. [Class 40 (v).] The grid circuit of a valve amplifier is provided with a negative resistance through which grid current flows and tends to make the grid more positive in the case of positive grid current. The Figure shows a pair of gas-filled diodes 3, 3<1>, constituting the negative resistance arranged in parallel with the grid bias source 5 and stabilizing resistance 7. The stabilizing resistance 7 may be given a voltage characteristic with a curvature similar to that of the negative resistance by the provision in parallel of a rectifier 8 of the copper oxide type and potentiometer 10. The invention is applicable to valves of large power handling capacity and its purpose is to compensate for distortion due to grid current. The Provisional Specification describes over compensation so as to compensate also for distortion due to other causes such as incipient saturation and the provision of a diode between the grid and cathode so that current flows in the grid circuit even when the grid itself is taking no current so as to compensate for bottom bend curvature of the anode current curve.
Patent GB-461127-A (GB)
Title: Improvements in and relating to catalysis
IPC: C01B21/26
Filed: 1935-05-10
Abstract: A catalyst, particularly for use in the oxidation of ammonia, consists of an alloy containing at least one metal of the platinum group which is coated with a solid surface of substantially pure platinum, the platinum preferably being equal in weight to 0,1 to 1,0 per cent of the whole mass.  The alloy preferably contains two metals of the platinum group, particularly platinum and rhodium, but alloys of platinum with palladium, ruthenium &c., and also ternary alloys and alloys containing base metals, e.g. nickel, cobalt, silver and copper may be used.  The platinum-rhodium alloy preferably has a rhodium content between 0,5 and 50,0 per cent, e.g. 90 per cent platinum and 10 per cent rhodium.  The catalyst may be in the form of wire gauze, perforated sheets, narrow strips or small particles.
Patent GB-167869-A (GB)
Title: New or improved apparatus for demonstrating and testing different classes of fits of engaging parts of machines and other engineering constructions
IPC: G01B5/00
Filed: 1920-05-20
Abstract: 167,869. Thomson, H. J. May 20,1920. Testing mental aptitudes. - Apparatus for demonstrating and testing different classes of fits used in mechanical appliances comprises a conical plug fitting within an outside member formed with a hole of the same taper and means for varying the clearance between the members by relative axial movement, the class of fit being estimated by " feel " upon rocking one member relative to the other while resting against adjustably set stops. The plug 1 is shorter than the outside member 4 and is carried on shaft extensions 2, 3. Sleeves 5, 6 are adapted to form stops which may be set to particular limits. In practice, the shafts 2, 3 together with the sleeves 5, 6, which are split, are mounted in standards 7, 8. The sleeves are provided with graduations as shown, and the stops are set to allow axial movement corresponding to clearances at the high and low limits, whereupon the sleeves and shafts are clamped at 9, 10, and the type of " clearance " fit may be demonstrated by the play of the cone 4 upon the plug 1. For demonstrating " obstruction " fits, in which the plug grips in the hole, the stops 5, 6 may be made to screw on the shafts 2, 3 so that considerable thrust can be put on the cone 4 by the stop 5, and this ,thrust subsequently released by the stop 6. A lever arm on the cone 4 acting against a spring would then show the torque required to rotate it. To measure the film thicknesses of various lubricants, the amount of longitudinal movement of the cone 4 from full clearance to full engagement without clearance is compared first when the cone surfaces are dry and then when lubricated.
Patent GB-476788-A (GB)
Title: Improvements in or relating to air separators for fuel pumping apparatus
IPC: F02M55/00
Filed: 1937-05-18
Abstract: <PICT:0476788/III/1> <PICT:0476788/III/2> <PICT:0476788/III/3> A fuel-supply system, particularly for aircraft, in which a feed pump 4 draws from a tank 3, having a pivoted suction pipe 2a, and delivers through an air separator 6 to a fuel injection pump 1. The air separator comprises a casing 12 in which mounted a rotor 20 weighted at 30.  Fuel passes through pipe 5 and passage 17 to pipes 23 where it is sprayed against the inside of the casing to facilitate the separation of entrained air.  A port 33 through the weight 30 is connected to the pipe 7 and air and excess fuel passes through the pipes 27, 25 to the pipe 10 which is connected to the supply tank 3. The pipe 27 is slightly curved and a ball 29 closes the lower end according to the position of the casing 12.  When used in aircraft the axis of the rotor 20 is perpendicular to the direction of travel and in a horizontal plane.  In a modification the rotor is actuated by a float and in a further modification the weighted rotor is connected to the casing by a universal joint.
Patent GB-129161-A (GB)
Title: Improvements in or relating to Loading and Discharging Devices for Aircraft.
IPC: B64D1/02
Filed: 1918-08-27
Abstract: 129,161. Boulton & Paul, and North, J. D. Aug. 27, 1918. Dropping bombs and other articles from a height. - Relates to means for loading bombs, mails, &c. on aircraft and discharging them therefrom. According to the invention, an opening leading to a storage space in a wing, fuselage, or elsewhere, is arranged to be covered or uncovered by a flexible shutter fitted with laths 10 guided by guideways 7 or by tensioned cords 11 passing through holes in the ends of the laths, and operated by means of other cords 12 passing through the laths and secured to the last lath 10<x>. The cords 12 are led over pulleys 15, 16 and connected together at 17, so that when the cords are pulled the laths 10 are closed together and the opening uncovered, the return of the shutter being effected by elastic means 14 connected to the other ends of the cords 12.
Patent GB-466924-A (GB)
Title: Improvements in or relating to progressive speed-changing devices for variable speedmachines
IPC: F16H29/08
Filed: 1936-05-16
Abstract: 466,924. Variable speed driving - mechanism. FRANZONI, U. DE. May 16, 1936, No. 13932. [Class 80 (ii)] A variable-speed drive betweena crank disc or pulley 1 and a driven wheel 11 comprises an oscillating lever 3, which is pivoted at an adjustable pivot 4 and which is driven at one end by a link 2 from the crank disc 1, the other end driving the wheel 11 through levers 8 and one-way driving pawls 9, one of which drives during the movement of lever 3 in one direction and the other during the return. movement of the lever. The driven end of the lever 3 is guided by arms 7 pivoted about a fixed point to prevent undue.oscillation of the lever in a longitudinal direction. The pivot 4 is slid along guides 5 by operation of a hand lever 6 to vary the amplitude of oscillation of the driving end of the lever 3, and hence the speed of the wheel 11, this sliding movement being allowed by a rod member 16 of the lever 3 being slidably mounted in the pivot pin 4.
Patent GB-1459283-A (GB)
Title: Process for the preparation of n-alkyl-piperazines
IPC: C07B61/00
Filed: 1974-03-29
Abstract: 1459283 N-(alkyl or cyclohexyl)-piperazines HENKEL & CIE GmbH 29 March 1974 [2 April 1973 7 June 1973] 13962/74 Heading C2C A N(C 1-22  alkyl or cyclohexyl)piperazine is made by catalytically aminolysing an N- alkyldiethanolamine with at least 3 mol ammonia per mol of the N-alkyldiethanolamine at above 150‹ C. in the presence of excess hydrogen and of a chromium oxide-zinc oxide or aluminium oxide-zinc oxide oxidation catalyst. The invention also comprises as antimicrobial compositions, aqueous solutions comprising at least one N-monoalkylpiperazine made by the above process.
Patent GB-360877-A (GB)
IPC: B60G11/12
Filed: 1930-05-07
Abstract: 360,877. Laminated springs. STAS DE RICHELLE, L., 38, Avenue du Tolhuis, Gand, Belgium. May 7, 1930, No. 14053. Convention date, Sept. 2, 1929. Void [Published under Sect. 91 of the Acts]. [Class 108 (iii).] Laminated vehicle suspension springs are mounted on the vehicle frame so as to permit longitudinal movement of the eye of the spring relatively to the vehicle frame, and are arranged so that they automatically resume their normal positions relatively to the chassis after each displacement. In one form, Fig. 2, one eye a of a vehicle suspension spring b is bored to receive a bush d in which a cylindrical block c is free to turn, the other end of the spring being connected to the vehicle frame by a shackle. The block c is mounted eccentrically on a bolt g which is carried by the dumb iron h. The bush d may be replaced by a rubber sleeve integral with the eye a and the block c, and the block c may be made of rubber. In a modification, Fig. 4, a bolt g passing through the eye a of the spring b is carried in two cylindrical blocks m, n free to turn in the flanges h<1> of the dumb iron h. In a further modification the eye of the spring is carried on a cranked bolt.
Patent GB-1191453-A (GB)
Title: Improvements in and relating to Variable Path-Length Cells.
Inventor: TADAYON JAMAL
IPC: G01N21/03
Filed: 1966-03-30
Abstract: 1,191,453. Spectroscopic cells. BECKMAN - R.I.I.C. Ltd. June 30, 1967 [March 30, 1966], No. 14053/66. Heading G2J. A variable path length spectroscopic cell for liquid samples comprises a first part 1 having a window 5, a second part 2 screw-threaded with, and freely rotatable relative to, part 1, and a third part 3 having a window 10 and being carried by part 2 by means allowing relative rotation, but not relative axial movement, therebetween; relative rotation between parts 1 and 3 is prevented (e. g. by a pin 32), so that relative rotation between parts 1 and 2 varies the path length between the windows without causing the latter to rotate relative to one another. Part 1 may have a port 14 for introducing liquid between the windows and may be screw-threaded on to a tubular projection 18 of a cylinder 17 of part 2. Part 2 also has a sleeve 19 bearing screws 20 which deform projection 18 to remove backlash between parts 1 and 2, and an outer sleeve 21 which is heldagainst cylinder 17 by screws 22 and forms with part 1 a scale and marker for indicating the path distance. Part 3 has a flange 29 which is secured by screws 30 to a ring 23 rotatably mounted on a cylinder 17 by ball races 25, 26. Windows 5, 10 are sealed by deformable washers 7, 8, 12 and 13 and may be rendered parallel by adjusting screws 31.
Patent GB-752397-A (GB)
Title: Rolling mill with backing rolls
IPC: B21B37/30
Filed: 1954-05-14
Abstract: 752,397. Rolling. HYDROPRESS, Inc. May 14, 1954 [May 14, 1953], No. 14134/54. Class 83 (4). In a rolling mill for sheet and strip with working rolls 12, 13, Fig. 1, and backing rolls 14, 15 in slightly offset relation, a row of auxiliary rolls 23 is disposed along one of the working rolls 13, each being urged with variable pressure in response to variations in the thickness of the material being rolled in order to maintain a constant thickness. The auxiliary rolls 23, Fig. 3, are supported on yokes 24 of hydraulic cylinders 26 the internal pressures of which are separately controlled through solenoid valves 30 from axially disposed thickness gauges 28 transmitting electrical signals to meters 29 and indicating variations from a predetermined thickness. The upper working roll 12 is supported laterally between rolls 18, 19 on fixed brackets 20, 21. For rolling sheet which is tapered in the longitudinal direction the roll pass is varied by screw downs 48 which are rotated in nut members 49 by an electric motor 44 and worm gears 47, the thickness of the strip across its width being maintained uniform by the auxiliary rolls 23. The rate at which the motor 44 rotates for tapering is controlled from a mechanism 43 which automatically compensates for elastic deformation in the mill. The power required for pass adjustments is reduced by hydraulic pressure in a cylinder 51 acting on the end of the screw-downs 18 to relieve a substantial portion of the load on the nut 49.
Patent GB-402080-A (GB)
Title: Improvements in or relating to line casting reels
IPC: A01K89/01
Filed: 1932-05-19
Abstract: 402,080. Fishing. PITT, B. J. WAKEFIELD-, Oak Mount., Plymouth Road, and ALLCOCK & CO., Ltd., S., Standard Works, both in Redditch, Worcestershire. May 10, 1932, No. 14200. [Class 48.] The direction of rotation of the flyer 3 of a fishing reel can be changed by turning the reel body 1 through 180‹ about a pivot 8. Inadvertent motion is prevented by a spring washer 13 or by a clamping screw. The pivot 8 may be eccentric to the body.