baber/WOPTO huggingface dataset:
Patent GB-933306-A (GB)
Title: Improvements in or relating to agricultural apparatus
Inventor: DOWNING WILTON WILLIAM WAVENEY
IPC: A01D34/43
Filed: 1958-10-20
Abstract: 933,306. Forage harvesters. GLOSTER AIRCRAFT CO. Ltd. Oct. 15, 1959 [Oct. 20, 1958; Nov. 27, 1958; Dec. 5, 1958; March 6, 1959], Nos. 33389/58, 38289/58, 39372/58 and 7849/59. Class 6(3). A forage harvester comprises a casing 11 enclosing a cutter assembly which extends transverse of the direction of travel and comprises a plurality of banks of cutters 26, each bank during rotation presenting a radially projecting continuous face from end to end and from its radially outer edge towards the axis of rotation, the cutters cutting the crop and passing the cut crop through the casing and out through an outlet B. As shown in Fig. 3, each cutter comprises a retaining clip 25 by which the cutter is pivotally attached to a bar 24 fixed to lug plates 22 in a shaft 21 driven from a shaft 8 connected to the power shaft of a tractor. The end walls and rear wall of the casing extend at least to the level of the lowermost point of the path followed by the free edge of each bank. Land wheels 3 are provided and are adjustable to lower or raise the position of the lower edge of the casing which is formed with skids 32. Air is drawn in through openings 36 to assist in projecting the crop up a shoot 14, the upper part of which is adjustable by means of a lever 19.
Patent GB-849912-A (GB)
Title: Airplane landing gear
IPC: B64C25/04
Filed: 1956-11-05
Abstract: 849,912. Aircraft undercarriages. GOODYEAR TIRE & RUBBER CO. Nov. 5, 1956 [April 6, 1956], No. 33655/56. Class 4. An undercarriage 12 retractably mounted on a wing 1 at a point aft of the centre of gravity of the aircraft is inclined rearwardly with its axis 13 parallel to a line 0-11 which is the resultant of two vectors 0-9 and 0-10. Vector 0-9 represents the net vertical load on wheel 5 and vector 0-10 the product of the wheel tyre to ground co-efficient of friction, based on dry rubber against dry concrete, times the net vertical load. The tangent of the angle between lines 13 and 0-9 is approximately equal to one half of said wheel tyre to ground co-efficient of friction.
Patent GB-863334-A (GB)
Title: Improvements in or relating to optical projectors
IPC: G03B21/53
Filed: 1958-10-22
Abstract: 863,334. Optical projectors. LEITZ G.m.b.H., E. Oct. 22, 1958 [Oct. 25, 1957], No. 33738/58. Class 97(1) An optical projector has sensing members which bear against the surface of an inserted transparency to sense the thickness thereof, and so arranged as to alter the gate-to-objective distance in accordance with the said thickness so as to maintain the transparency in the focal plane. The gate may be moved relative to the objective, or vice-versa. In Fig. 1 the sensing members are double-armed levers 6, mounted pair by pair on spindles 7, 7a attached to the transparency housing 4. The arms of the levers are of unequal length, the shorter arms 6a bearing against a surface 11 of the transparency gate 9; springs 12 are arranged between the housing 4 and surface 11. In the absence of a transparency, the supporting surface of the gate is in the focal plane. When a transparency is inserted, lever arm 6a is displaced by the amount of the thickness of the mount, but at the same time, the gate itself is displaced in the opposite direction, so that the transparency remains in the focal plane. The arms of lever 6 are unequal so as to take into account that the displacement must not only be half the thickness of the mount, but must also allow for apparent displacement of the focal plane due to refraction by the glass cover-plate. Fig. 2 shows a modified arrangement in which the objective, and not the gate, is displaced. A single-armed lever 13, pivoted at 15 to the housing 14, bears at its other end against the transparency 18. Part-way along the lever is a peg 19 which engages against a projecting part 20 of the objective 21. Thus the objective is moved in response to the sensed thickness of the transparency. In the arrangement of Fig. 5 (not shown) a "coarse" adjustment of the gate-to-objective distance is provided, in addition to the "fine" adjustment shown in Figs. i and 2. An electromechanical system for moving the transparency backwards and forwards is provided, which movement can be stopped by pressing a switch when the picture is in focus. A further arrangement for returning the transparency housing to a definite initial position is also provided.
Patent GB-1273371-A (GB)
Title: Improvements in partially n-alkylated diphenylmethane bases as new curing agents for epoxy resins
IPC: C08G59/50
Filed: 1969-07-04
Abstract: 1,273,371. Partially N-alkylated diphenylmethane bases. UNIROYAL Inc. 4 July, 1969 [25 July, 1968], No. 33843/69. Heading C2C. [Also in Division C3] The invention comprises a composition comprising one or more diphenylmethane bases containing at least two amino groups characterized in that between 4 and 50% of the amino groups of said bases are monosubstituted with primary or secondary C 1  to C 8  alkyl groups, and wherein the remaining amino groups are primary. It may be obtained by (a) reacting the diphenylmethane base with an aldehyde or ketone containing 1 to 8 carbon atoms in the presence of H 2  and a hydrogenation catalyst using between 4 and 50 mole per cent of aldehyde or ketone based on moles of primary amino group present; or (b) reacting a mixture of aniline and an N- alkyl-aniline with HCHO or an HCHO generating substance in the presence of an acid, the molar ratio of the total amine content to the HCHO being at least 2 : 1. Examples are given for the production of the compositions. They are useful as epoxy resin curing agents.
Patent GB-1268186-A (GB)
Title: Improvements in or relating to nuclear reactor fuel elements
Inventor: LINNING DAVID LEES
IPC: G21C3/04
Filed: 1968-04-26
Abstract: 1,268,186. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 21 April, 1969 [26 April, 1968; 16 July, 1968], Nos. 20041/68 and 33902/68. Addition to 1,174,575. Heading G6C. A fuel element of the type specified in the main parent Specification is, in one feature of the invention, in the form of an elongate fuel member and its metallic sheathing includes both internal and external sheathing between which the fuel is disposed, the fuel member thus being of the tubular type and there being an interlayer disposed between and directly contacting the fuel and each of the internal and external sheathing. The interlayers are preferably of a ceramic compound of U of either natural or depleted fissile isotopic abundance, and the fuel is a ceramic compound of Pu, a mixture of ceramic compounds of U and Pu, or a fissile-enriched ceramic compound of U. The interlayers may be in pellet form with the fuel in the form of vibro-compacted ceramic particles, or the interlayers may be of vibrocompacted ceramic particles and the fuel in pellet form, or the interlayers and the fuel may all be in pellet form. Where the fuel is of pellet form, it may be in two annular portions with an annular gap therebetween to provide a fission product reservoir and enable gaseous fission products the better to pass to a gaseous fission product plenum at one end of the fuel element or to gaseous fission product venting means, and also to assist in providing voidage for the accommodation of irradiation-induced swelling. The fuel density is preferably less than 85% of maximum theoretical density. In one embodiment, each fuel pellet has at least three radial ribs extending from its inner and outer surfaces to contact the sheaths, the part-annular spaces between the ribs being occupied by vibrocompacted UO 2  to form the interlayers. Where the fuel is of carbide compounds, a thin, non- fissile, non-fertile compatibility layer is provided between each interlayer and the respective sheathing over at least that axial region of the fuel zone of the fuel member which is subjected to maximum burn-up in operation. Suitable materials for the compatibility layer include MgO, TiO 2  and ZrO 2 . This layer may be applied by spraying or dipping, those parts outside the axial region of maximum burn-up not requiring the layer being masked. Where the fuel member is not of the tubular type, as according to another feature of the invention, it has its interlayer of UC of natural or depleted fissile isotopic abundance, its fuel of PuC, mixed PuC and UC, or enriched UC, and there is additionally provided between the interlayer and the sheathing, a thin compatibility layer of non-fissile, non-fertile material, such as is described with reference to the firstmentioned feature.
Patent GB-411451-A (GB)
Title: Improvements in artificial dentures
IPC: A61C13/10
Filed: 1932-12-01
Abstract: 411,451. Artificial teeth. HOBDAY, W. W., 46, Upper Tything, Worcester. Dec. 1, 1932,No.33955. [Class 81 (ii).] A device for the attachment of artificial teeth to a dental plate comprises a rib 5 with which the tooth 1 is slidably engaged and a plate 6 provided with slots through which pass lugs 9 which serve as attachment keys for the vulcanite and have parts 12 riveted over to secure the rib to the plate. The inner face of the plate 6 is also provided with keys 8 for moulding into the vulcanite plate. In a modification a limb 13 having zig-zag edges is secured to the plate 6 for engagement in the dental plate.
Patent GB-847496-A (GB)
Title: Improvements in reinforced sheet materials
IPC: B24D11/00
Filed: 1956-11-07
Abstract: 847,496. Treating and mixing fibres. MINNESOTA MINING & MANUFACTURING CO. Nov. 7, 1956 [NOV. 7, 1955], No. 34012/56. Drawings to Specification. Class 120(3). [Also in Groups VIII and XXIII]. A self-supporting mat, which .can be impregnated with hardenable resin to form a sheet for backing or reinforcing abrasive sheets, wheels &c. or for dielectric panelling, suitcase panelling or table-tops, comprises a randomly-orientated uniform mixture of 20-80% of polymer-encased short bundles of aligned glass fibres and correspondingly 80-20% of short impregnationresistant cotton thread segments. To form the mats, glass filaments, encased in butadiene acrylonitrile polymer cut into bundles of 0À75 to 2À5 inches long, and tightly-twisted cotton threads of similar length and sized with starch or other material, are uniformly distributed on a moving belt and fed to a knurled squeezing- roller: the material so formed is fed to a venturi for the blended materials to be carried by an airstream to a condensing roll through which air is withdrawn leaving the materials as a self-supporting mat. The impregnating resin (polyesters, butadiene copolymer, epoxy-phenolic, triallyl cyanurate, styrene, maleic anhydride, acrylics, vinyls and polyamides are mentioned) is hardened under pressure; when two or more layers so formed are used they are united under pressure so as to lose their individual identities. To form abrasive materials, one or more mats are superposed on individual or continuous carrier sheets, impregnated and heated under pressure: the carriers are removed and the material, if necessary, cut into discs: one or more surfaces are now roughened, coated with binder and abrasive grains, sized, and cured. For moulded wheels, alternate layers of discs cut from a mat of light weight and impregnating resin with abrasive are cured in moulds.
Patent GB-482000-A (GB)
Title: Improvements relating to roundabouts
IPC: A63G1/34
Filed: 1936-12-11
Abstract: 482,000. Roundabouts. OPENSHAW, C. Dec. 11, 1936, No. 34069. [Class 132 (i)] A roundabout comprises a circular group of seats 2 rotatably mounted to move on a flat or undulating track 3 banked up or inclined to the horizontal, a central rotatably mounted surface or stage 1, and means 14, 15 for driving the seats and the central surface at separate controllable speeds. The group of seats may be formed by a continuous trough with transverse partitions and the surface 1 may be fashioned to represent objects of interest.
Patent GB-174507-A (GB)
Title: Improvements in or relating to open-grate fireplaces
IPC: F24B1/183
Filed: 1920-12-02
Abstract: 174,507. Bratt, L. G. J. Dec. 2, 1920. Open fire-places; boilers, arrangement of.-In open fire-places of which the back wall is in part constituted by a boiler under and behind which the combustion products pass, the side walls and boiler setting are formed of removable interlocking fire-bricks, the lowermost course forming a seating for the boiler, and a covered space is formed above the boiler and in front of the flue to allow the boiler to be easily inspected and prevent deposit of soot. In the stove shown, the side walls are formed of three courses of detachable bricks 1, 2, 3 having a tongue and groove connection with one another. The rear faces of the bricks 2, 3 are shaped to fit against the inclined front wall of the V-shaped boiler 16, which is supported on'faces 7 on the bricks 1 and on faces 8 on side bricks 5, the bricks 1 being cut away at 9 to allow a free passage for the combustion products. A rear brick 4 is shaped to form a flue at the lower rear part of the boiler 7. The gases pass up a sheet-iron flue 23 in which is a butterfly damper 15. A closed space is formed over the boiler, bounded by the front wall of the flue 23, the side walls of the stove, and plates 17, 18, connected by a detachable plate 19 which allows access to the boiler. Specification 8719/02 is referred to.
Patent GB-1081316-A (GB)
Title: Method of obtaining a non-magnetostrictive magnetic electrolytic deposit
Inventor: MEHAUTE CHARLES LE
IPC: H01F41/26
Filed: 1966-08-11
Abstract: A non-magnetostrictive magnetic electrolytic deposit is formed on a conductor, e.g. a wire by cathodic deposition in a nickel-iron solution in which the ratio of nickel to ferrous iron is between 50:1 and 80:1 and which also contains up to 700 mg/l of sodium palladichloride and preferably not less than 200 mg/l thereof. Typically the solution comprises 250 g/l nickel sulphate, 4 g/l ferrous sulphate, 0.4 g/l sodium palladichloride, 25 g/l boric acid, and saccharin and sodium lauryl sulphate, and may also contain 4 g/l cobalt sulphate.
Patent GB-890222-A (GB)
Title: Improved reversible pneumatic motor for hand and like light tools
Inventor: WEBB GEORGE HENRY
IPC: F01C13/02
Filed: 1958-10-24
Abstract: 890,222. Rotary motors. DESOUTTER BROS. Ltd. Oct. 24, 1958, No. 34153/58. Class 110 (2). A reversible compressed-air motor of the outwardly-sliding vane type is provided with one inlet 11, and a number of exhaust ports 12, 13, 15 for one direction of rotation, and similar ports 12 and 11, 14, 16 (reverse drive) for driving a tool A. Exhaust opens when the working chamber is at its maximum volume. The vanes 1 . . . 5 are thrown outwards centrifugally and the casing bore adjacent ports 11, 12 is cut away at 32. A plate 17 has a channel 18 to connect ports 14, 16 and another 19, to connect ports 13, 15. A rotary valve 22 directs the inlet air from a valve 24, operated by a hand lever 25, into one or other of two channels 20, 21, Fig. 3 (not shown), leading to the motor, the second channel leading exhaust air to the atmosphere by way of ducts 26, 27, 28, 29 forming the primary expansion chamber of the silencer of the apparatus.
Patent GB-1387801-A (GB)
Title: Multi-purpose bandage
IPC: A61F13/00
Filed: 1974-07-03
Abstract: 1387801 Bandages P N SPEED 3 July 1974 [18 July 1973] 34281/73 Heading A5R A bandage comprises a rectangular backing sheet 1 of linen or other suitable material to one surface of which is secured a rectangle of lint 2, a plurality of tie-strips 7-12 being secured to each of two opposing edges of the backing sheet for securing the bandage in position. A layer of cotton wool is provided between the backing sheet and lint. The bandage may be used whole or cut into narrower strips each having one pair of ties. The layer of lint and cotton-wool is at least 15" x 8" in area and the tie-strips are at least 18" long by 4" wide.
Patent GB-1005155-A (GB)
Title: Protection of polyvinyl chloride
IPC: C08K5/29
Filed: 1964-08-24
Abstract: Polyvinyl chloride compositions contain 0.05 to 5% of N-(3-chlorophenyl) itaconimide based on the weight of polyvinyl chloride.  The compositions may also contain 50 to 100 parts by weight per 100 parts of polyvinyl chloride of a plasticizer. Specified plasticizers are dialkyl phthalates, e.g. dibutyl, dioctyl and didodecyl phthalates; diacid esters of glycols, e.g. esters of diethylene glycol, dipropylene glycol or triethylene glycol with benzoic or C2- 10 alkanoic acids, e.g. diethylene glycol dipelargonate, dipropylene glycol dibenzoate, triethylene glycol diacetate and triethylene glycol di-(2-ethylhexoate); and epoxidized soya bean oil. The imide is said to prevent plasticizer depletion by bacteria and fungi when the compositions are buried in soil.  In examples, films are calendered from compositions comprising polyvinyl chloride N-(3-chlorophenyl) itaconimide and dioctyl phthalate, dioctyl phthalate and epoxidized soya bean oil, or dipropylene glycol dibenzoate.
Patent GB-1058426-A (GB)
Title: Process for the manufacture of magnetizable recording layers
Inventor: BISSCHOPS JOHAN HEINRICH
IPC: C09D5/23
Filed: 1964-08-24
Abstract: In a recording layer comprising acid adsorbing magnetizable particles of materials such as acicular g -Fe2O3, CrO2, metals or metal alloys dispersed in a polymeric binding agent, a strong physical bond between the particles and the binding agent is obtained by adsorbing on to the particles a dispersing polymer having acid groups and lipophilic structural units, the dispersing polymer being cross-linked with the polymeric binding agent.  The two polymers, together with a suitable solvent and the magnetizable particles are ground together in a ball mill and the resulting dispersion is applied as a layer to a polyethylene terephthalate support, e.g. by means of a doctor knife.  The dispersion preferably incorporates as a binding agent a polymer which can be hardened by the influence of an acid catalyst.  In one example, a subbing layer of copoly-(acrylonitrile/vinylidene chloride) (5/95) is first applied to the support and the magnetizable particles are aligned in a magnetic field, the recording layer being subsequently dried and calendered; infra-red radiation is used to cure the binder.  A coating of paratoluene sulphonic acid dissolved in methanol may be applied to the dried layer then dried, and is said to render the layer insoluble and very wear-resistant at its surface.  Dispersing polymers containing acid groups and hydroxyl groups may be made by reacting diethyl phosphite, phthalic anhydride, or chlorosulphonic acid in anhydrous benzene, with the polyester resulting from the condensation of adipic acid, orthophthalic acid and trimethylolpropane, or by reacting a polyethylene glycol with trimellitic anhydride (forming the monoester).  Details of these preparations are given. Copoly-(vinyl alcohol/ methacrylic acid) and linear or branched polyesters containing acid groups are also stated to be suitable as dispersing polymers. Binding agent polymers include partially hydrolysed copoly-(vinyl chloride/vinyl acetate), polyvinylbutyral, and a polyesteramide modified with a polyisocyanate.  Appropriate solvents for the preparation of the magnetizable layer include methyl ethyl ketone, ethanol, and 1,2-dichloroethane.
Patent GB-342797-A (GB)
Title: Improvements in or relating to burners for furnaces fired with pulverised, liquid or gaseous fuel
IPC: F23D1/00
Filed: 1929-11-12
Abstract: 342,797. Pulverulent, gaseous, and liquid fuel burners. CLARKE, CHAPMAN & CO., Ltd. and WOODESON, W. A., Victoria Works, Gateshead-on-Tyne. Nov. 12, 1929, No. 34529. [Class 75 (i).] The mixture of fuel and primary air is delivered by a circular pipe 1 having a narrow elongated outlet 2 into a flared chamber 3 in which it mixes with secondary air from a casing 7, which air enters around the outlet 2 and through ports 9 provided in the walls of the mixing chamber beyond forwardly inclined projections 8. The projections on the walls are relatively staggered and are preferably perpendicular to one another. The mouth of the mixing chamber is provided with a positioning flange 10 formed with air ports 12, and may be flattened so as to have two long curved walls. Specifications 309,641 and 323,484, [both in Class 75 (i), Burners &c.], are referred to.
Patent GB-1171507-A (GB)
Title: A method of Fabrication of Metal Pressure Vessels
IPC: B21D51/24
Filed: 1967-07-27
Abstract: 1,171,507. Making pressure vessels. BIURO STUDIOW I PROJEKTOW I KONSTRUKCJI STALOWYCH " MOSTOSTAL." 27 July, 1967 [28 July, 1966], No. 34677/67. Heading B3A. A method of making a pressure vessel comprises fabricating the vessel from flat or part cylindrical metal plates by welding to resemble the desired shape, and permanently deforming the vessel by liquid pressure to more closely resemble the desired shape with continuous curvature. The part cylindrical plates may be shaped by rollers and the finished vessel may include some flat segments.
Patent GB-1195575-A (GB)
Title: Improvements in Vehicle Rear-View Mirrors
Inventor: AVRIL GILBERT
IPC: B60R1/076
Filed: 1967-07-27
Abstract: 1,195,575. Vehicle rear view mirrors. SOC. COMMERCIALE DU COMPTOIR DES INVENTIONS PRATIQUES POUR L'AUTO MOBILE. 27 July, 1967 [19 Aug., 1966], No. 24687/67. Heading B7J. An external vehicle rear-view mirror comprises a mirror support arm 7 tiltable against the action of a helical compression spring 8 (as described in Specification 1,195,574) contained in a base assembly with its axis substantially parallel to the vehicle surface 1, wherein the base 2 of the base assembly has an oblique aperture 2a engaged during mounting over the oblique end of a tongue 6 previously secured via a plastics sole-plate 3 to the vehicle surface 1 by a screw 5, a further screw 4 keeping tongue and aperture engaged, and a cover 11 being slid on to the assembly by engaging its inturned edges 11a in grooves in the base 2.
Patent GB-1196046-A (GB)
Title: Bed Construction.
Inventor: IKEDA MINORU
IPC: A47C17/02
Filed: 1967-07-28
Abstract: 1,196,046. Mattresses; beds. FRANCE BED CO. Ltd. 28 July, 1967 [30 July, 1966; 6 Dec., 1966; 20 July, 1967], No. 34801/67. Headings A4M and A4J. A bed comprises a mattress 34 (Fig. 1) or 37 (Fig. 5) which fits into a rectangular cavity in a bed frame such that the upper surface of the mattress is higher than outwardly extending ledge surfaces 33 of the frame at the sides and foot of the bed, the frame comprising a reinforcing member with a covering of cushioning material. In one embodiment, Fig. 1, the frame comprises foam rubber or plastics with an embedded reinforcing member. In another embodiment, Figs. 5, 6, the frame is formed by separate upper and lower parts 36, 39 of which the upper part 36 comprises a hollow, metal reinforcing member 42 with a covering 43 of foam rubber or plastics. The upper part 36 is formed by separable sections.