baber/WOPTO huggingface dataset:
Patent GB-1213766-A (GB)
Title: Flash evaporator
IPC: B01D3/06
Filed: 1969-04-18
Abstract: 1,213,766. Evaporators, flash type; desalination of water. AMERICAN MACHINE & FOUNDRY CO. 18 April, 1969 [6 May, 1968], No. 19966/69. Heading B1B. In an evaporator wherein the liquid-to-beevaporated, e.g. salt water, flows successively through a series of flash evaporation stages separated by partitions 14, the liquid passes from one stage to the next through a slit 16, at the base of the separating-partition 14, and rises through a converging passage, formed by an inclined plate 20, to a throat 22 which is controlled by an adjustable valve 28. The liquid is then guided by deflecting plate 24 so that it is projected across the stage in the form of a sheet from which flash vaporization takes place. The valves enable the pressure-conditions in the stages to be controlled without allowing vapour-leak to occur between adjacent stages. The vapour, liberated in the stages, passes to heat-exchangers (not shown) where it is condensed. Each valve comprises a cylindrical tube 36 in which are cut a pair of oppositely-disposed slots 38, 40. The valve is adjusted by rotation (manually or automatically) so that the effective width of one of the slots 38, 40 is restricted because of its proximity to partition 14. The first stage may be provided with a cylindrical valve which has only one slot.
Patent GB-1326870-A (GB)
Title: Adjustable boring bar
IPC: B23B29/034
Filed: 1972-05-02
Abstract: 1326870 Boring bars SANDVIK AB 2 May 1972 [6 May 1971] 20293/72 Heading B3C A boring bar comprises a rod 10, and a surrounding tube 11, the rod being fixed in the tube at portion 12, and spaced therefrom at portion 13, setting means 15, 16 for exerting lateral pressure so as to bend the rod and tube in opposite directions in order to vary the cutting radius of a cutter bit 18. The bit holder is fixed to the tube, but in a modification it is fixed to the rod. Setting screw 15 has a graduated head 16, and a second screw (19) Fig. 4 (not shown) is provided for counteracting the cutting forces. Rod 10 may be of sintered carbide, and tube 11 of steel.
Patent GB-441067-A (GB)
Title: Improvements in pile fabric looms
IPC: D03D39/06
Filed: 1934-07-11
Abstract: 441,067. Pile fabric looms. ROBINSON, J. E., 19, Birmingham Road, Kidderminster, Worcestershire. July 11, 1934, No. 20316. [Class 142 (ii)] In a wide loom for weaving tufted pile fabrics, having a number of spools 7 mounted in brackets on a tube frame 5, each bracket comprises lower and upper parts 13, 14 hinged at 15 and connected to a bolt 17 co-operating with slotted lugs 16, 19, a spring 21 being placed on the bolt beneath a nut 20 so that the friction on the flanges of the spools may be adjusted. The flanges 26, 29 fit one into the other and run on flanged rollers 22, mounted in the bracket. The rollers are retained in recesses in the bracket and each consists of two parts connected together by a rivet 25, or as shown in Fig. 3, each roller turns on a pin 38 and embraces the reduced rims 35 of the flanges. Each flange is fixed to the tube 7 of the spool by conical member 32 which is drawn into a split hollow boss 30 by a screw 31, 33 and an angular head of one screw fits into a recess in the head of the other. A collar 34 holds the screw 33 against rotation in the flange 26.
Patent GB-267397-A (GB)
Title: Improvements in or appertaining to impedance measuring bridges
IPC: G01R1/20
Filed: 1926-08-17
Abstract: 267,397. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). Aug. 17, 1926. Inductances and capacities, measuring. - In a wheatstone bridge for measuring impedances, in which the arms are electrostatically shielded, shielded switching means are provided for interchanging the ratio arms in order to check their exact equality and also for interchanging the impedance arms in order to check the equality of the admittances in shunt therewith. The ratio arms R<1>, R<2> are provided with individual shields 9. 10 connected to the junction point A of the arms. The shields 9, 10 are surrounded by a common shield 11 which also shields the lead from the terminal A to the current supply transformer 5 and is connected to the shield 12 surrounding it. The capacities between the shields 9, 10 and the shield 11 are thus connected between the points A, C of the bridge, so that they do not affect the balance. The primary winding 7 of the detector transformer is connected across the bridge terminals B, D and is connected at one end to its shield 13, which forms the bridge terminal D. The standard impedance, connected between the points C, ZS, is provided with a shield connected to the point C. A variable condenser Cb is connected between the points B, C, and is adjusted to equality with the ground capacity between the points C. D. The whole bridge is surrounded by a grounded shield 30 which is connected to the junction point C through a variable condenser Cg. Switches 14, 15, for interchanging the ratio arms and impedance arms respectively. are provided and are enclosed in a shield 16 connected to the oscillator transformer shield 13. An adjustable sleeve 26 is provided for securing equality in the capacities between the shields 9, 10 and the shield 16.
Patent GB-1151053-A (GB)
Title: An Artificial Wood Facing and Method of Making Same.
Inventor: TONKES JACK WALLACE
IPC: B29C33/40
Filed: 1966-05-09
Abstract: 1,151,053. Moulding artificial wood facing. J. W. TONKES, and K. R. TONKES. 9 May, 1966 [18 May, 1965], No. 20351/66. Heading B5A. In a method of producing an artificial wood facing, a natural wood face is cleaned to accentuate its grain structure, a release agent is applied thereto followed by a gel coat of a resin, e.g. a polyester resin to which a backing layer or layers is applied, e.g. resin-glass cloth or resin-paper layers. The laminate is stripped from a mould to which a wax release coating is applied, followed by a resin coating, e.g. a polyester resin. Backing layers are then applied as in the preparation of the mould. The laminated artificial wood facing is then removed. The resin layer or layers applied to the mould may be coloured or the hollows of the facing may have a colouring material applied thereto.
Patent GB-1189379-A (GB)
Title: Improvements in or relating to Pneumatic Tyres
IPC: B60C9/26
Filed: 1967-05-03
Abstract: 1,189,379. Pneumatic tyres. DUNLOP CO. Ltd. 3 May, 1967 [4 May, 1966], No. 20413/67. Heading B7C. A radial carcass tyre comprises a multilayer breaker 2, 3 wherein at least one layer is of folded construction and the overall width of the breaker measured along the curvature thereof decreases in a radially outward direction, the widest dimension L of the breaker measured along the curvature thereof being greater than the axial width l of the head band measured parallel to the rotational axis of the tyre. Preferably each layer is of bias-laid parallel cord material with a cord angle between 0 and 30 degrees to the mid-circumferential plane p, the cord angle increasing from the radially innermost to the outermost layer. The radially innermost layer 2 may consist of a strip having a fold at each edge or of two axially-separated components each with a single fold; the components may be disposed symmetrically or asymmetrically with respect to the tyre mid-circumferential plane, and be of different cord angle and/or may have their axially outer edges different axial distances from the next adjacent layer. Preferably the said widest dimension L of the breaker is 1À15 to 1À35 times the said axial width I of the head band. Reference has been directed by the Comptroller of Specification 808,548.
Patent GB-241664-A (GB)
Title: Improvements in potato and like planting machines
IPC: A01C9/06
Filed: 1924-08-29
Abstract: 241,664. Farmer, C. Aug. 29, 1924. Planting-machines. - In potato planters &c. wherein spiked arms or members and complementary ejectors pass through the lower part or extension of a hopper the ejectors are formed as skeleton cups or groups of forwardly projecting fingers and slots are formed in the lower part or extension of the hopper to allow of the passage of the ejectors. The spikes are carried by arms pivoted on a rotary member, urged forward by spring pressure and withdrawn by cam action. The ejectors are carried by arms fixed on the rotary member and curved agitators are provided. Two sets of arms 4 on the rotary member 1 project through slots between hoops 3. Each arm 4 carries a skeleton cup 6 consisting of a metal stamping having four radial fingers bent upwards. Each arm 4 also carries an agitator arm or plate 8 having its free end of triangular section and curved as shown in Fig. 3 so as to be near one side of the slotted hopper extension 26 as it passes through it. Pivoted between the two parts of each arm 4 is a spikecarrying arm 11 connected with the next arm 4 by a spring 36 and engaging a pivoted arm 12 actuated by a fixed cam 40. A spike 18 is removably fastened to each arm 11 and projects through the ejector cup 6. The leading surface of the cam 40 has a gradual inclination and the other end a sudden drop, so that the spike is withdrawn slowly from a potato but is projected forwardly suddenly in the hopper extensions to pierce a potato. The skeleton cups 6 are not large enough for potatoes of normal size to enter, but they serve to remove stones &c. from the hopper extensions. Each hopper extension 26 may be provided with an auxiliary agitator consisting of a sprocket chain or a spiked wheel projecting through a slot. The machine may also comprise a ridging-plough, trench-closing discs, and a manure box provided with a valve controlled automatically or by hand.
Patent GB-299832-A (GB)
Title: Improvements in machines for trimming the edges of lawns
IPC: A01G3/06
Filed: 1927-08-02
Abstract: 299,832. Johnstone, J. Aug. 2, 1927. Lawn-mowers.-In lawn-trimming apparatus comprising a pair of rotating bodies whose edges overlap so as to form co-operating cutting or shearing surfaces, the co-operating parts are made in the form of rings or flanges with the outer circumference of each ring overlapping or touching the inner circumference of the other. A disc 1, Fig. 2, co-operating with a roller or drum 5 is recessed, dished, or grooved so as to have a peripheral surface 4 engaging the end of the roller. A lawn-trimmer of the kind described in Specification 11991/07 comprises a. frame 7, Fig 3, mounted on two rollers 8, 9 and provided with straps 10 to receive a handle. An inclined circular cutter or disc 14 of the kind described with reference to Fig. 2 engages with the edge of the roller 8, being pressed against it by a spring 18. The cutter 14 is driven by frictional contact with roller 8 or by the gearing shown. The edge of the roller may be reduced. In a modification the spindle of the roller is bent downwards to support the rotary cutter.
Patent GB-897890-A (GB)
Title: Spectroscopic device for the production of time-resolved spectra
IPC: G01J3/28
Filed: 1959-06-16
Abstract: 897,890. Pulse generating circuits. BARDOCZ, A. June 16, 1959 [June 16, 1958], No. 20650/59. Class 40(6). [Also in Groups XX and XL(b)] A capacitor C is periodically discharged through a main spark gap A which is used as a light source in a spectroscope (see Group XL(b)) by means of auxiliary spark gaps G1, G2 and a thyratron V3. The capacitor C is charged from an A.C. supply by means of a full-wave rectifier V1, V2. Each discharge is initiated by a positive pulse applied through an amplifier IG to the thyratron V3. When the thyratron V3 fires, the voltage across the capacitor C fires the auxiliary spark gap G1  and initiates the discharge of C via L2, R3, R5, G1, R4 and V3. Substantially all the voltage across the capacitor C now appears across the resistors R5 and R4 and since R5 is much greater than R4 the main gap A fires. The voltage across C now appears across R4 and fires the auxiliary spark gap G2 so that the capacitor C completes its discharge via L2, R3, A, G1, G2 as shown by the thick line. The timing of the discharge may be controlled by an adjustable delay line or circuit in the input to the amplifier IG.
Patent GB-275653-A (GB)
Title: Improvements relating to the application of cellulose ethers or esters
IPC: C08J3/09
Filed: 1925-12-15
Abstract: 275,653. I. G. Farbenindustrie Akt.- Ges., (Assignees of Akt.-Ges. f³r Anilin- Fabrikation). Dec. 23, 1924, [Convention datel. Coating-compositions; varnishes.-1: 4 dioxane is used as a solvent for cellulose esters and ethers, for instance cellulose acetate in the preparation of coating-compositions and varnishes. Other organic solvents may be added. Resins and dyes may be dissolved in the solutions.
Patent GB-760483-A (GB)
Title: Improvements relating to the processing of sulphidic minerals
Inventor: THOMAS WILLIAM RHEINAILLT
IPC: C22B1/08
Filed: 1953-07-27
Abstract: Carbonaceous materials containing metals, especially in the form of sulphides, such as low-grade pyrites-bearing coal or suphidic tailings obtained by cleaning or washing such coal, are treated to remove metal values by contacting finely ground particles thereof with a gaseous chlorinating agent at a temperature of 250 to 600 DEG C., whilst maintaining the particles in a fluidized bed, and thereafter separating the metal chlorides from the exit gas. Suitable chlorinating agents which may be used alone or in admixture with other gases such as nitrogen, are chlorine, hydrogen chloride or sulphur chloride.  The treatment converts metal sulphides to chlorides and iron, selenium, germanium and vanadium may be thus removed, and in addition sulphur and/or sulphur chlorides may also be formed.  The coal may remain substantially unchanged or may be partially carbonized and the sulphur content is reduced.  Tarry matter may be separated from the solid residue and employed as a binder for briquetting coal.  Examples relate to treating coal containing 10 to 30 per cent pyrites with chlorine to obtain a solid residue from which traces of iron chloride may be removed by washing and the tarry matter extracted to leave a carbonaceous substance suitable for carbonization.  The gaseous products contain ferous and ferric chloride and, depending upon the concentration of chlorine employed, sulphur or sulphur monochloride.  The iron chloride can be converted by hydrolysis to iron oxide and hydrochloric acid, the latter being used for the recovery of its chlorine content.
Patent GB-810805-A (GB)
Title: Fixture anchor having three dimensional adjustments
IPC: E21D7/00
Filed: 1955-07-18
Abstract: 810,805. Ground anchors. ADJUSTABLE ANCHOR CORPORATION. July 18, 1955 [July 26, 1954 ; March 31, 1955], No. 20763/55. Class 45. [Also in Groups XXIV and XXV] An adjustable anchor for securing a machine or other fixture to a floor or wall comprises, in one form, a plate 26, Fig. 2, in screw-threaded engagement with a fixed housing 10, said plate supporting a flanged rotor 17 having a diametrical undercut slot 23, Fig. 3, receiving the head of a bolt 24 securing a foot 30 of the machine to the rotor. The housing 10 has a flange or ears 11, which may be secured to a wooden base or to the reinforcing rods of a concrete base. The bolt 24 may then be radially positioned along the rotor slot, angularly positioned by rotation of the rotor 17, and vertically positioned by rotation of the plate 26. The rotor 17 is clamped in position by a threaded ring 29 which may be locked by a pin 34 or by burring the edge of housing 10 into a recess in the ring. Where the housing 10 is to be embedded in a concrete floor or wall it may be attached to a template by a bolt engaging a threaded bore 16 in the rotor 17. If an anchor embedded in a floor is subsequently not required the rotor 17 may be inverted to preserve floor continuity. In a modification the rotor is frusto-conical and is held in the housing by a tapered ring. In a further modification, Fig. 5 (not shown), the rotor had a spheroiealperiphery so that it may be tilted, and is clamped in a spheroidal cup threaded in a housing 10. In these constructions the diametrical slot for the bolt head does not extend completely across the rotor but extends axially therethrough. In another modification the bolt 24, Fig. 8, is eccentrically mounted in a rotor 46 itself eccentrically mounted in a rotor 45 rotatably adjustable on a vertically-adjustable plate in a housing 10. It is stated that the adjustable anchor is applicable to building construction of the type wherein a slab floor formed on the ground is subsequently lifted to the required level, the anchor being employed for the attachment of the hydraulic lifting mechanism.
Patent GB-1166324-A (GB)
Title: Power Transmission Mechanisms.
IPC: F16H7/06
Filed: 1967-05-04
Abstract: 1,166,324. Chain gearing. GENERAL MOTORS CORP. 4 May, 1967 [9 May, 1966], No. 20782/67. Heading F2Q. In a power transmission mechanism comprising a pair of toothed sprockets 14, 16 and a drive chain 15 of interconnected links formed with teeth which mesh the sprocket teeth, the base pitch C of at least one sprocket is greater than the linear pitch B of the chain teeth, and the linear pitch B of the chain teeth is greater than the pitch required to maintain the chain tight between the sprockets in the static condition, by an amount sufficient to allow the chain teeth in the dynamic condition to engage the sprocket teeth along a pitch line having a greater pitch diameter than the minimum pitch diameter of the sprocket teeth. The sprocket teeth have a lesser pressure angle than the chain teeth which are guided by contact of their tips with the roots of the sprocket teeth. In order to reduce the noise level, the driven sprocket 16 comprises a series of teeth F of normal length and disposed at random spacing with respect to each other and separated by relatively short, cut-off teeth. The sprocket may be formed initially with a full complement of full length teeth and then some of these teeth cut to form short teeth, Fig. 5. Alternatively, tooth flanks I, Fig. 6, may be cut away from some of the teeth. Additionally, some of the roots may be cut away. One of the sprockets incorporates a torsional vibration damper. The transmission is connected between an engine-driven hydrodynamic torque-transmitting device and an automatic variable-ratio transmission which is connected to drive a pair of wheels of a vehicle.
Patent GB-924999-A (GB)
Title: Improvements in or relating to actinide metal oxide sols
IPC: H04K1/00
Filed: 1959-06-17
Abstract: Sols comprising an actinide metal oxide in water or deuterium oxide may be prepared by removing the solubilising ions (v.i.) from a solution in water or deuterium oxide of an actinide metal compound by means of an ion exchange resin or by electrodialysis (see Group XXXVI).  The invention also comprises an actinide metal oxide sol in water or deuterium oxide in which at least 80% of the particles have a diameter of 10-200 millimircrons, and it is stated that such sols may be obtained additionally by precipitation-peptization followed by fractional centrifuging. An example is provided of a sol prepared by means of a solution of tri-iso-octylamine functioning as an ion exchanger.  By "solubilising ion" is meant the anion of a simple actinide metal salt or the cation of a salt in which the actinide metal is part of a complex anion (formed e.g. by addition of sodium or ammonium carbonate to a salt or other compound).  Activide metals referred to are thorium, uranium, neptunium, plutonium, americium, curium and berkelium and the sols may contain one or more of these elements in one or more isotopic forms, details of preferred proportions being given.  The sols may be suitable for use in nuclear reactors (see Group XL(a)) and may be stable at up to 375 DEG C.  The Specification gives examples of strongly and weakly ionised exchangers of acidic and basic type which may be used in preparing the sols and gives details of preferred temperatures which are within the range room temperature to 150 DEG C., preferred pH conditions, and preferred procedures which lead to the initial production of seed nuclei and subsequent growth either as a single stage or two stage process: the seed nuclei may be provided by a silica sol.  The sols may be stabilised by autoclaving, e.g. at 200 DEG -300 DEG C. or by adding, or forming in situ, a colloidal solution of silica and/or zirconium and aluminium oxides or one or more of iron, chromium, vanadium or nickel oxides.  Specifications 720,002 and 821,229 and U.S.A.  Specification 2,732,350 are referred to.ALSO:Membranes suitable for electrodialysis are obtained by casting films on reinforcing materials (see Group VIII) from liquids prepared (a) by dissolving 2-vinyl pyridine (containing 0,1% hydroquinone) in isopropanol, adding dimethyl sulphate, cooling and adding divinyl benzene (these reagents being used in roughly equal quantities) and (b) by melting together roughly equal quantities of phenol and resorcinol, cooling, sulphonating by adding sulphuric acid, cooling again and adding water to produce a mixture which is added slowly to about three times the quantity of aqueous 37% formaldehyde solution cooled to -10 DEG C. Specifications 720,009 and 821,229 and U.S.A. Specification 2,732,350 are referred to.
Patent GB-500169-A (GB)
Title: Bobbin-winder for sewing machines
IPC: D05B59/00
Filed: 1938-07-14
Abstract: 500,169. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) July 14, 1938, No. 20876. [Class 112] In a bobbin-winder for a sewing- machine, the spindle 20 which carries the bobbin B is mounted in a head 18 formed on a rod 15 slidable in a bore in a transverse boss 17 on the machine frame. The spindle 20 carries a rubber-tyred driving wheel 21 which is adapted to engage a rim 6 on the balance wheel of the machine but is normally held clear by a spring 30 pressing the rod 15 to the right; alternative arrangements of the spring are shown in Figs. 3 and 10. The rod 15 is prevented from rotating in its bearing 17 by a transverse plate 22 adjustably fixed in a slot in the rod and projecting into a slot in the boss 17 ; this plate also serves to limit the movement of the rod 15 under the action of the spring 30. The rod 15 is held in the winding position, with the wheel 21 in contact with the balance wheel 6, by a latch 24 pivoted on a screw 25 on the boss 17 and engaging a member 28 adjustably fixed to the plate 22 ; the latch has a tail to engage the thread on the bobbin B so that it is tripped when the bobbin is full, and this tail is pressed against the bobbin by a spring surrounding the latch pivot 25. The engaging end of the latch is made arcuate and concentric with the pivot 25, so that the resistance to its motion past the member 28 is minimized ; when this end of the latch releases the member 28; movement of the rod 15 under the action of its spring causes the member 28 to engage the upper surface of the latch to raise it and hold it clear of the bobbin against the action of its spring, this action also cushioning the movement of the rod 15. The balance wheel 6 of the machine is carried loosely on a sleeve 4 fixed to the end of the machine shaft, and is driven by an electric motor through a worm and worm-wheel 9. The wheel 6 is clamped to the sleeve 4, to drive the machine, by a clutch member 10 screwed into the sleeve 4 and pressing the wheel 6 against a shoulder on the sleeve ; the member 10 acts through a thrust washer 11 slidable on'the sleeve 4, and the members 10, 11 have cooperating stops to limit the unscrewing of the member 10 when it is required to disconnect the wheel 6 from the machine shaft for winding a bobbin.