baber/WOPTO huggingface dataset:
Patent GB-165676-A (GB)
Title: Improvements relating to gas meters
IPC: G01F3/22
Filed: 1920-07-22
Abstract: 165,676. Smith, E. W., and Smith Meters, Ltd. July 22, 1920. Gas meters.-In a dry gas meter having a gas-way leading from the diaphragm case to a pocket formed between the valve and diaphragm chambers the gas-way c is soldered to the lower plate of this pocket a, a hole b being provided in the top plate of the pocket to allow access for making the joint. The opening b is closed by a disc d larger in diameter than the opening, which is soldered to the upper side of the pocket.-
Patent GB-1190801-A (GB)
Title: Manufacture of Linear Polyesters
Inventor: BARKEY KENNETH THOMAS
IPC: C08G63/80
Filed: 1967-05-11
Abstract: 1,190,801. Polyethylene terephthalate. EASTMAN KODAK CO. 11 May, 1967 [12 May, 1966], No. 21971/67. Heading C3R. Polyethylene terephthalate is made by (1) reacting dimethyl terephthalate with ethylene glycol in the presence of an antimony catalyst (e.g. antimony oxide) and a zinc salt (e.g. zinc acetate) to form a molten prepolymer having an intrinsic viscosity of 0À2 to 0À5; (2) adding a reducing stabilizer to the molten prepolymer (e.g. phosphorous acid or an alkyl phosphite); (3) cooling the prepolymer to solidify it and thereafter grinding it to a particle size of less than 600 microns; and (4) subjecting the prepolymer particles to a solid phase polymerization at above 150‹ C. and in the presence of an inert gas until the intrinsic viscosity of the prepolymer is greater than 0À5, characterized in that the inert gas atmosphere contains at least 0À005% by weight of ammonia, acetaldehyde or ethylene glycol and 1 to 6 volume per cent of oxygen, whereby metallic antimony is converted to an oxidized state. Prior to solid phase polymerization, the prepolymer may be treated with an organic liquid to enhance its crystallinity. The solid phase polymerization may be effected in a horizontal tube, an upright cylinder or a rotating tilted cylinder by a static bed or fluidized bed technique.
Patent GB-184794-A (GB)
IPC: A01D13/00
Filed: 1922-08-12
Abstract: 184,794. Gastl, L. Aug. 19, 1921, [Convention date]. Single-furrow ploughs with means for breaking lower vegitation and treating soil; tools.-A potato-digger, adapted to be drawn by a horse or a motor, comprises a main beam a having at its rear end a forwardly and downwardly extending member b carrying the digging-tool which is formed by an horizontal share c provided at its sides with vertical shares d, e. The shares d, e extend rearwardly and outwardly in the form of mouldboards and in the channel between them a second horizontal share h is situated, an aperture g extending between the two horizontal shares. The share h has a slight upward slope and terminates in a grate i. A plate n supported by an adjustable bracket o is carried by the beam a over the share c and a downwardly and rearwardly extending bar p is provided on this plate to break up the soil raised by the share. The share c itself carries a vertical projection for this purpose. Side handles r and a central handle s are fitted. In operation, the sides of the ridge are moved outwards by the side shares and the middle potato-containing soil is broken up by its passage over the share c. The second share h lifts the potatoes and the loose soil, the potatoes remaining on the grid and the soil falling there through.
Patent GB-1178266-A (GB)
Title: Improvements in or relating to Extruders.
Inventor: MILLER ROBERT LEONARD
IPC: B29C48/50
Filed: 1967-05-11
Abstract: 1,178,266. Screw type extruders. NRM CORP. 11 May, 1967 [1 Sept., 1966], No. 21999/67. Heading B5A. Pellets of scrap styrene, polyethylene or nylon are fed from a feed channel 10 into a wedge shaped space formed between the screw 5 and bore of the extruder barrel 1 adjacent the channel 10. The space comprises a tapered bore 11 formed with longitudinally axially extending splines 12 which stop rotation of the plastics material, the bore being non-circular in transverse cross-section. The temperature of the feed throat 9 is controlled by fluid in passages 13.
Patent GB-220427-A (GB)
Abstract: 220,427. Green, F. W., and Tansley, G. E. July 6, 1923. Air and gas heating furnaces.-An apparatus for heating air or otheir gases by means of waste furnace gases &c. comprises a series of flat, corrugated or other shaped plates A arranged to form two series of spaces S, T in such a manner that the air and waste gases can pass simultaneously in their own direction of flow, and a number of dampers, valves or their equivalent B, C which are operated so as to permit the air and waste gases to pass alternately through the two sets of spaces, so that at any time the air is taking up residual heat from the previous passage of hot gases and is also receiving heat directly by conduction through the plates A. In the arrangement shown in Figs. 1 and 3, the hot gases pass in a vertical direction and the air in a horizontal direction and two sets of plates B, C provided with port holes D are connected to common operating-rods E, which are actuated either automatically or by hand to vary the passages S, T. He@ accumulating bodies such as plates, bars or blocks of suitable material may be located in the spaces S, T. Instead of the. apertured plates B, C being movable, these may be fixed and the casing movable, or the apertured plates may be replaced by butterfly valves.
Patent GB-333298-A (GB)
Title: Improved process for producing shaped articles from urea or its derivatives and solid polymerised formaldehyde
IPC: C08G12/12
Filed: 1929-02-04
Abstract: 333,298. Bakelite Ges. Sept. 11, 1928, [Convention date]. Divided on and addition to 318,883. Urea-aldehyde condensation products.-The reactions between urea or its derivatives and solid polymerized formaldehyde is effected in a melt of a solid hydrocarbon or solid nitrated, chlorinated, or hydrogenated hydrocarbon, in absence of catalysts and of water or volatile liquids. The fusible substances employed may be anthracene, naphthalene, or chlorinated, nitrated, or hydrogenated naphthalene. Additions may be made as in the parent Specification, such as fillers, plastifying agents such as liquid organic substances of high boiling-point, also aldehyde-binding and waterbinding substances and dyestuffs.
Patent GB-1143939-A (GB)
Title: An excavator, more particularly, an excavator for the digging of trenches
IPC: E02F5/06
Filed: 1966-05-18
Abstract: 1,143,939. Excavators. ETABS MATENIN. 18 May, 1966 [20 May, 1965], No. 22156/66. Heading E1F. In a bucket wheel or bucket ladder excavator each digger bucket 2 has a pivotted bottom 6 on the underside of which are two or two groups of bosses 8, 9 and each boss or each group of bosses co-operates with an associated cam member 10 or 11 disposed about the path of travel of the bucket to cause at predetermined positions along said path pivotting of the bottom in one or the other direction through the bucket.
Patent GB-1006637-A (GB)
Title: Improvements in joint sealing strips
IPC: E04B1/684
Filed: 1963-06-04
Abstract: 1,006,637. Joint sealing strips. SECURALITE. June 4, 1963 [June 5, 1962], No. 22174/63. Heading E1G. A sealing strip for joints in concrete structures has a flange 2 integral with a ring section 3, the latter being integral with twin flanges 4, 5 which are opened against shuttering 9 for the casting of the first section and are held together by a tongue and groove fastening for the casting of the second section (Fig. 3). Short internal flanges 8 permit the retention of the sealing strip against the shuttering by a moulded clamp strip 9.
Patent GB-981165-A (GB)
Title: Disc brake comprising wear-compensating mechanism
Inventor: HODKINSON HAROLD
IPC: F16D55/224
Filed: 1960-06-25
Abstract: 981,165. Disc brakes. DUNLOP RUBBER CO. Ltd. June 5, 1961 [June 25, 1960], No. 22350/60. Heading F2E. In a spot-type disc brake in which a bifurcated lever 15 and an operating rod 22 cooperate to move angularly two pressure plates 12, 13 towards a disc 10, a spring-urged pawl 30 on the lever engages a ratchet-wheel 27 threaded on the rod 22 to adjust the brake automatically. The lever 15 is pivoted at 17 to the pressure plate 13 and carries a trunnion block 25 through which passes the rod 22 and against which bears the ratchet-wheel 27, a friction spring 28 preventing unwanted movement of the wheel 27. The pawl 30 is carried on a plate 29, slidable against a spring 32, anchored to the lever such that excess movement of the lever, due to wear of the pads 14, causes the pawl to ride over a tooth, and on release of the lever under the action of spring 18, to rotate the ratchet-wheel and reduce the pad clearance. Minimum pad clearance is obtained by a deformable resilient member 33.
Patent GB-220481-A (GB)
Title: Improvements in or relating to amusement apparatus
IPC: A63G7/00
Filed: 1923-09-11
Abstract: 220,481. Walker, J. R., and New Amusements, Ltd. Sept. 11, 1923. Roundabouts.-Cars 5 are pivotally connected to a rotating structure 1, a cam device 13 causing the cars to move radially inwards or outwards on a rail-less track surrounding the structure. A link 10 connects the car 5 to the pivoted point 11 and an extensible link 19 connects the link 10 with a pivoted arm 15 which is provided with a roller 14 following the cam 13, a compression spring 18 keeping the roller in engagement with the cam. A guide 17 supports the free end of the arm 15. The cam 13 may be arranged on the outside of the car track, and may be flexible and adjustable in shape. The cars may be steered, or the point of attachment of the bars 8 with the links 9 may be adjustable. Bell-crank levers may be employed for connecting the cars to the structure 1, one arm of the levers engaging a cam surface, or spring-expanded link-work may be used. The cam may take the form of a groove in the track.
Patent GB-1461794-A (GB)
Title: Manufacture of thermoplastics fibrids
IPC: D01D5/40
Filed: 1974-05-22
Abstract: 1461794 Fibrids BASF AG 22 May 1974 [23 May 1973] 22837/74 Heading B5B Thermoplastic fibrids are formed by passing a homogenous solution of the plastic material in an organic solvent through nozzles into a zone having the form of an impulse chamber where the solution is cooled and the thermoplastic material precipitates and in which a turbulent field of shear forces exists, this being produced by the introduction of one or more jets of gaseous or liquid medium into the impulse chamber of a velocity of at least 5 m/s. In Figs. 1 and 2, 1 is the propulsive jet, 2 the outlet for the solution of the plastic material, 3 is the impulse exchange chamber, 4 is the tank, 5 is the inlet for the gaseous or liquid medium and 6 is the inlet for the homogeneous solution. Preferred plastics are polythene or an ethylene copolymer. The homogeneous solution may also contain an expanding agent.
Patent GB-1102433-A (GB)
Title: Mixing apparatus
IPC: A47J43/08
Filed: 1966-05-23
Abstract: 1,102,433. Mixing apparatus. ATLANTIC RESEARCH CORPORATION. 23 May, 1966 [11 June, 1965], No. 22863/66. Heading B1C, A batch or continuous discharge mixer 10 has a chamber 16 in the form of two intersecting, invented, heat-jacketed frusto-cones 24, 26 (see also Fig. 2, not shown), and two stirrers 18, 20 each comprising (as shown, two) tapering helical ribbon elements 56, which can be given a motion of rotation and of simultaneous axial reciprocation. The two stirrers counterrotate and their helices are of opposite hand so that the stirrers intermesh; their relative phase angle can be adjusted. The axial motion may be arrested to provide rotary motion only with any desired mutual clearance between the helices and between the stirrers and the chamber 16. A pipe may be inserted through a hollow stirrer shaft (Fig. 7, not shown) into the space in the middle of the stirrer to measure temperature or viscosity, inject a fluid or withdraw a sample from any desired level in the mix. The stirrer elements may be of rectangular cross-section; in order to provide a transverse component of motion to the mix the leading face may be oblique to the direction of motion (see Figs. 5 and 6, not shown) or the cross-section may be a triangle or trapezium (Figs. 8 and 9, not shown); or (if the sense of rotation of the stirrer is to be reversible) a rhombus (Fig. 10, not shown). The stirrers exert a downward force on the material which effects its discharge through the outlet 36, which may be provided with a closure (not depicted) for batch operation. The length, width or cross-section of the stirrer elements bear a constant proportion to that of the mixing chamber. The chamber may be placed under reduced pressure when it is used as a reaction vessel.
Patent GB-187089-A (GB)
Title: Improvements in and relating to aluminium alloys
IPC: C22C21/12
Filed: 1921-08-29
Abstract: 187,089. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 29, 1921. Alloys.-An alloy suitable for engine cylinders piston rings, and moulds for rubber articles such as tyres, consists of at least 50 per cent of aluminium, at least 2.5 per cent of silicon, and the remainder copper; for example 70 per cent of aluminium, 15-27.5 per cent of copper, and 2.5-15 per cent of silicon. The alloy may be made by melting the elements together, or from aluminium and copper silicide, or from aluminium silicide and copper silicide.
Patent GB-636965-A (GB)
Title: Improvements in laminar structures
IPC: C08L27/00
Filed: 1947-08-18
Abstract: Hard thermoplastic copolymers of styrene and acrylonitrile or butadiene-1 : 3 having a high modulus of elasticity, are prepared by copolymerization of mixtures of styrene with 15-50 per cent of acrylonitrile or with 3-20 per cent of butadiene-1 : 3.  The copolymers produced generally have an elongation of less than 5 per cent.  Copolymerization is preferably effected by mass or aqueous emulsion polymerization.  Emulsifying agents, catalysts, regulators and modifiers may also be present, e.g. rosin soaps, peroxides, mercaptans.  The emulsified products may be coagulated by addition of acetic acid or salt solution or the copolymer may be obtained by spray-drying the latex.  The copolymers may be compounded with synthetic rubbers (see Group V), e.g. rubbery copolymers of butadiene-1 : 3 with styrene or acrylonitrile and the mixtures of copolymers compounded with vulcanizing ingredients, accelerators, antioxidants, plasticizers, fillers and pigments; specified are sulphur, zinc oxide, stearic acid, benzo-thiazyl disulphide. Materials, the surface of which resembles leather may be prepared by laminating and hot pressing sheets of compositions having varying proportions of hard and rubbery copolymers (see Group VIII).  U.S.A. Specification 2,140,048 is referred to.ALSO:The two component sheets of a laminar structure are each composed mainly of a cured thermoplastic homogeneous mixture of a synthetic rubber of low elastic modulus and a hard styrene co-polymer of high elastic modulus, the synthetic resin in the base sheet constituting 50-90 per cent by weight, and in the facing sheet 25-50 per cent, of the sum of the weights of the two components in the sheet in question.  The following mixtures may be used for base and cover sheets respectively:-hard styreneacrylonitrile co-polymer resin (15-30 per cent acrylonitrile) 66 parts by weight, Buna N 34 ("Buna" being a registered Trade Mark), zinc oxide 3, stearic acid 1, "Altax" (registered Trade Mark) 1, sulphur 1.5; and resin 25, Buna N 75, zinc oxide 5, stearic acid 2, "Altax" 1.5, sulphur 1.5. Alternative mixtures contain a hard butadiene-styrene copolymer, Buna S, zinc oxide 2, stearic acid 1, agerite white 1, "Altax" and sulphur.  A base-sheet and a facing sheet are bonded together and cured in a heated press at 280 DEG -400 DEG  F.
Patent GB-441706-A (GB)
Title: Improvements in or relating to the suspension arrangements for screw fan rotors
IPC: F04D29/64
Filed: 1934-08-07
Abstract: 441,706. Screw fans. MEY, R. DE, 198, Avenue du Roi, Brussels. Aug. 7, 1934, No. 22903. [Class 110 (i)] The outer spider ring 6 carrying a screw fan motor is of smaller diameter over the greater part of its length than the casing 8 to permit of freedom for the alignment of the shaft. The ring 6 is held by a flange 7 which is engaged by a number of eccentric bolt heads 16, and rotation is prevented by bolts which pass through the casing and spider.
Patent GB-467710-A (GB)
Title: Improvements in and relating to conveyor devices and methods of manufacturing the same
IPC: B65G11/10
Filed: 1936-08-20
Abstract: 467,710. Making conveyer shoots &c. GEWERKSCHAFT REUSS. Aug. 20, 1936, Nos. 22975 and 22976. Convention dates, Aug. 20, 1935 and May 13, 1936. [Class 83 (ii)] Conveyer shoots and troughs are formed by welding together an outer sheet of steel which cannot be hardened, and an inner sheet of steel which can be hardened. A layer of steel a, Fig. 1, is secured to the interior of a shoot b for rubbish, and is then hardened, the layer b being of material which is incapable of hardening. Drilling is effected before the hardening operation. A conveyer in which scraper plates e, Fig. 3, engage has its replaceable walls and base formed of two-ply material of which the layer a only is hardened. A plate a<1> and if desired plates a<2>, a3 are welded to a plate b while flat, the secured plates are hardened, and the backing is bent to trough shape along lines lying between the plates a<1>, a<2>, a3. According to the Specification as open to inspection under Sect. 91, the invention is applicable to other conveyer devices, such as buckets and trucks. The composite sheets may be secured as liners in worn conveying devices. This subject-matter does not appear in the Specification as accepted.
Patent GB-712577-A (GB)
Title: Improvements in hydropneumatic accumulators
IPC: F15B1/24
Filed: 1952-09-15
Abstract: 712,577. Covers for resisting fluid pressure. GRATZMULLER, J. L. Sept. 15, 1952 [Sept. 14, 1951], No. 23118/52. Class 123(1) [Also in Groups XXVI and XXIX] A hydro-pneumatic accumulator comprises a tubular body 8, a movable partition A separating gas and liquid chambers, a closure 11a having a connection to the hydraulic system, an inwardly facing annular abutment 12c which as shown is formed on a nut 12b screwed on to the other end of the body 8, and a disc-shaped member 12a freely slidable in the body 8 and engaging the abutment 12c by its marginal part when subjected to gas pressure, the member 12a having a gas-tight non-return valve 14b for inflating the gas chamber. The gas filling aperture 14a is closed by a ball 17 pressed on to a seating by a screw 16. The nut 12b has a supporting skirt portion 24 closely fitting the body 8. The member 12a is recessed at 5a to accommodate a plastic and/or elastic sealing ring 1a and a washer 2b. The ring 1a may be made of neoprene, a silicone, a polyamide, copper or aluminium. The closure for the liquid chamber may be similar to that described for closing the gas chamber. In a modification the abutment is formed by a wire in a groove formed in the inner wall of the body 8. A reinforcing ring surrounds the body at this point. The partition A comprises a free piston as described in Specification 702,088. [Group XXVI].
Patent GB-363725-A (GB)
Title: Improvements in cooling systems for furnaces
IPC: F23K3/12
Filed: 1930-07-31
Abstract: 363,725. Cooling tuyeres of underfeed stokers. AMERICAN ENGINEERING CO., Aramingo Avenue, Philadelphia, U.S.A. July 31, 1930, No. 23141. Convention date, June 7. [Class 51 (i).] In an underfeed stoker having a number of inclined retorts with tuyeres arranged between the retorts for the supply of hot air to the fuel bed, an atomized spray of water is delivered through nozzles 11 against the under surfaces of the tuyeres 6, 10. The moisture passing to the fuel bed prevents clinkering.
Patent GB-1148869-A (GB)
Title: Improved leaf-spring suspension for automobile or other vehicles
IPC: B60G11/04
Filed: 1966-05-24
Abstract: 1,148,869. Beam axle suspensions. AUTOMOBILES M. BERLIET. 24 May, 1966 [25 May, 1965], No. 23172/66. Heading B7D. A suspension in a vehicle comprises a longitudinal leaf spring 9 pivoted at one end to a chassis bracket 2, shackled at the other end to a bracket 3 and secured at its centre to an axle 7 which is connected to bracket 2 by a member 12 extending parallel to the spring and forming a quadrilateral with axle 7, bracket 2 and the portion of spring 12 between the axle 7 and bracket 2, the arrangement opposing pivoting of the axle about its longitudinal axis. The member 12 may be a rigid link with a pivot 5, 13 at each end, Fig. 1, or a U-shaped spring leaf with its base engaging the pivot (5) on the bracket (2) and the ends of its limbs secured below the axle (7) (Fig. 2, not shown) or a single spring leaf (15) with an eye at one end engaging the pivot (5) and a flat other end secured below the axle (7) (Fig. 3, not shown).
Patent GB-761936-A (GB)
Title: Improvements in or relating to apparatus for dressing grinding wheels
IPC: B24B53/04
Filed: 1954-08-10
Abstract: 761,936. Grinding machines; trueing. GES. DER LUDW VON ROLL-SCHEN EISENWERKE AKT.-GES. Aug. 10, 1954 [Aug. 11, 1953], No. 23245/54. Class 60 In a grinding apparatus, the grinding wheel 16 is arranged at the free end of a swivel arm 5 adapted to pivot in pendulum fashion, and a trueing diamond 28 is mounted on a slide rest A at the free end of a swivel arm 26 pivoted about a pin 24 the axis of which is co-planar with the grinding wheel axis and the pivot axis of the member 5. The grinding wheel is driven by a V-belt 12 from a motor 10 mounted on a plate 9 which may be adjusted by a screw 8 on a slide 7 also arranged for adjustment by a screw 20 and a handwheel 17 on the arm 5 which is pivoted at O on a carriage 2. The workpiece 50 is clamped to a table 51 alongside a template 52 having a height corresponding to the finished dimension of the workpiece and the arm 5 is swung through an angle # corresponding to the difference Z between the template and the workpiece, this difference being indicated by two dial gauges 53a, 54 carried by an arm 53 pivoted to the slide 2. The arm 5 is fed by a handwheel 40 or a motor 39 driving a screw 34. Before the cut is commenced the wheel 16 is dressed by the diamond 28 which is set by a dial gauge 32 to the height of the template 52. When the cut is almost completed, a stop 45 secured to the arm 5 causes a switch 42 to close a contact 43 for a red lamp 46 and at this point the grinding wheel may be re-trued. The end of the cut is indicated by a green lamp 47 connected to a contact 44. The trueing unit is swung to the position shown in broken lines by a motor 29 when it is not required. Fig. 6 shows a trueing unit for a wheel having a V-shaped profile, two slides 61, 62 carrying diamond tools 57, 58 being mounted in guides on a triangular block 60 arranged for pivotal adjustment about a bolt 55. The slides may be connected to each other and to opposite ends of a non-rotatable screw member by belts so that rotation of a worm wheel in engagement with the screw will displace the slides.
Patent GB-286167-A (GB)
Title: Improvements in metallic cores for electromagnets or the like
IPC: B22F1/142
Filed: 1927-09-05
Abstract: 286,167. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 5, 1927. Addition to 269,770. Electromagnets.- In making metallic powders for compression into cores for electromagnets, Pupin coils &c. by decomposing the corresponding metal carbonyl, in place of treating the resulting powders in an inert atmosphere, as in the parent. Specification, the powder according to the present invention is heat-treated in a reducing atmosphere. The product is then ground, preferably in a ball mill, to grains of the requisite size, generally in the absence of oxygen, and the resulting powder is used for making the cores. When a slight superficial oxidation of the grains is required, this may be obtained by exposing the ground powder for a short time to an oxidizing atmosphere. In an exemplary process, the powder obtained by decomposing iron carbonyl is treated for eighteen hours in a revolving furnace at 500 C. with a current of hydrogen. After cooling in an atmosphere of hydrogen, the product, is ground in a ball mill without access of oxygen and the resulting powder has a permeability more than double that of powder which has not undergone the heat treatment.