baber/WOPTO huggingface dataset:
Patent GB-800169-A (GB)
Title: Improvements in or relating to container closures
Inventor: SVEC EMIL FRANCIS
IPC: A44B19/16
Filed: 1956-10-19
Abstract: 800,169. Strip fastenings. FLEXIGRIP, Inc. Oct. 19, 1956, No. 31935/56. Class 44 In a container having an aperture arranged to be closed by a pair of closure strips provided respectively with at least one longitudinally extending resilient projection and with a co-operating recess whereby the strips may be resiliently locked together to close the aperture, one of the strips is provided along the whole length thereof with an engagement portion for assisting in manual separation of the strips to open the aperture. As shown in Fig. 2, a pouch 11 comprising back and front walls 13 and 14 of thermoplastic synthetic resin material are closed along the top edges by a fastener comprising a pair of overlapping strips 18, 19, of similar material secured to the top edges of the walls 13 and 14 respectively. The strips 18, 19 include web portions 18b and 19b and interengaging portions 20 and 21, the portion 21 having formed integrally therewith a flange 24 by which the strips may be pulled apart to open the pouch. The junction between the portion 21 and the flange 24 is of reduced section to permit limited flexing of the flange. In a similar construction, Fig. 3 (not shown), the flange projects outwardly from the portion 21 and then inwardly towards the strip 18. In another arrangement, Fig. 4 (not shown), the flange projects outwardly from and downwardly over the portion 21. In the arrangement according to Fig. 5 in which the front and back walls of the pouch are of substantially equal height, a closure strip 40 attached to the wall 13 includes a portion 43 for interlocking engagement with a portion 45 of a strip attached to the wall 14. A flange 57 extending from the portion 45 includes a locking portion 60 which engages a groove 56 on the strip 40, and is formed with serrations or ribs 61 by which the flange may be disengaged from the groove 56 prior to being used to pull the strips apart to open the pouch. In a similar arrangement, Fig. 6 (not shown), the flange projects laterally from the portion 45 and terminates in an upturned portion spaced from the top of portion 43. In the arrangement shown in Fig. 7, in which portions 43, and 45 of closure strips 40 and 41 depend 'from the walls of the pouch, the portion 45 is provided with an extension 67 by which the strips may be separated. In other arrangements Figs. 8 and 9 (not shown) similar to that of Fig. 2, the flange 24 is replaced by a serrated surface integral with the portion 21. In another arrangement, Fig. 10 in which the overlapping closure strips 18, 19 are disposed at an angle to the front and back walls 14 and 13 of the pouch 11, a flange 73 integral with the portion 21 abuts the outer surface of the strip 18 whereby the pouch may be opened by exerting pressure laterally inwardly on the walls of the pouch in the region of the portion 20, 21 to exert a camlike action on an edge 74 of the flange 73 which is flared outwardly to effect separation of the portions 20, 21. Alternatively, the pouch may be opened by a direct pull on the flange 73.
Patent GB-939263-A (GB)
Title: Improvements in, or relating to, electro-cardiographs
IPC: A61B5/04
Filed: 1959-09-19
Abstract: 939,263. Electro-cardiographs. G. A. JORDAN, and W. CANDIB. Sept. 19, 1959, No. 31985/59. Class 37. [Also in Group XL (b)] An electro-cardiograph has a circular rheostat 12 connected to it, the rheostat having three tapping points which are connected by leads 6, 7, 11 respectively to the patient and two sliding contacts 13, 14 connected to the input of the cardiograph. This arrangement is stated to facilitate the determination of the electrical heart axis by mixing the voltage vectors obtained from each of the three connection points to the patient for each heart-beat electrically in the rheostat. A number of " intermediate " readings of the cardiograph can be obtained between the actual " lead " position. In order to compensate for variations in amplitude of the signals received due to the fact that the rheostat is not vectorially truly circular but rather triangular, attenuating resistors 121-138 are provided (Fig. 9).
Patent GB-1156939-A (GB)
Title: Improvements in or relating to Machine Tools for Forming Articles from Blanks Cut from Strip Material Fed into the Machines
IPC: B21D43/05
Filed: 1966-10-06
Abstract: 1,156,939. Making eyelets; stamping; metal strip feeds; punching. TEXTRON Inc. 6 Oct., 1966 [15 Oct., 1965], No. 32011/68. Divided out of 1,156,938. Headings B3A, B3Q and B3W. The subject-matter of this Specification is identical with that described in Specification 1,156,938 to which reference is made, but the claims are concerned with feeding the same strip to the two blanking stations of the machine.
Patent GB-388134-A (GB)
Title: Manufacture of a fertilising agent by the wet oxidation of coal and the like
IPC: C05F11/02
Filed: 1931-11-18
Abstract: In the production of a fertilizing material according to the parent Specification, by oxidizing vegetable fuels such as peat, coal, anthracite, or lignite with nitric acid at low temperatures, for example, from 50-90 DEG  C. in the presence of a substantial quantity of water, and boiling the reaction product until the greater part is soluble in alkali, the nitrogen oxides evolved during the oxidation being reconverted into nitric acid to be used again, the nitric acid for the oxidation is produced in situ by means of a reaction mixture, which may comprise a nitrate such as sodium nitrate and a mineral acid such as sulphuric acid, some or all of which latter may be replaced by nitre-cake.  Nitric acid is produced advantageously by this method, since the sulphuric acid, which may be used in the form of dilute solutions such as spent nitrating acids and the like, is almost completely utilized, and also because the temperatures employed are moderate.  Examples are given.ALSO:In the production of a fertilizing-material according to the parent Specification by oxidizing vegetable fuels such as peat, coal, anthracite, or lignite with nitric acid at low temperatures, for example, from 50 to 90 DEG C., in the presence of a substantial quantity of water, and boiling the reaction product until the greater part is soluble in alkali, the nitrogen oxides evolved during the oxidation being reconverted into nitric acid to be used again, the nitric acid for the oxidation is produced in situ by means of a reaction mixture, which may comprise a nitrate such as sodium nitrate and a mineral acid such as sulphuric acid, some or all of which latter may be replaced by nitrecake. Nitric acid is produced advantageously by this method, since the sulphuric acid, which may be used in the form of dilute solutions such as spent nitrating acids and the like, is almost completely utilized, and also because the temperatures employed are moderate. Examples are given.ALSO:In the production of a fertilizing-material according to the parent Specification by oxidizing vegetable fuels such as peat, coal, anthracite or lignite with nitric acid at low temperatures, for example from 50-90 DEG  C., in the presence of a substantial quantity of water, and boiling the reaction product until the greater part is soluble in alkali, the nitrogen oxides evolved during the oxidation being reconverted into nitric acid to be used again, the nitric acid for the oxidation is produced in situ by means of a reaction mixture, which may comprise a nitrate such as sodium nitrate and a mineral acid such as sulphuric acid, some or all of which latter may be replaced by nitrecake.
Patent GB-1333803-A (GB)
Title: Detergent composition and a process for treating textile material
IPC: C11D3/37
Filed: 1971-07-07
Abstract: 1333803 Detergents containing Soil antiredeposition agents GAF CORP 7 July 1971 [27 July 1970] 32012/71 Heading C5D A detergent composition comprises a detergent and, as soil anti-redeposition agent, a synergistic mixture of polyvinyl pyrrolidone (A) and polyvinyl alcohol (B). The mixture may contain 10-90% of (A) and 90 to 10% of (B) and preferably 50% by wt. of (A) and 50% by wt. of (B). The polyvinyl pyrrolidone may have an average molecular weight of 5000 to 100,000 and the polyvinyl alcohol may have a viscosity of 1À8 to 6À0 centipoises (4% aqueous solution at 20 C.). The detergent may be anionic or nonionic. Optional ingredients are (a) builders such as silicates, carbonates, phosphates, borax, sodium sulphate, sodium chloride, sodium bicarbonate; (b) abrasives, e.g. pumice. The compositions may be in liquid or solid form, e.g. bar soaps.
Patent GB-996198-A (GB)
Title: A method for producing rolled steel products
IPC: B22F3/18
Filed: 1961-09-06
Abstract: In a process of forming sintered rolled steel products from oxidic iron powder, the oxidic iron powder containing carbon or with carbon added as pig iron, cementite or carbon, is cold compacted to form a porous bar, e.g. at 100 Kgm./cm.2 to a density \sF 4 gms./c.c., reduced and sintered at 600-1200 DEG C. and finally rolled. Sintering is carried out in a reducing protective atmosphere which may contain carburizing gases such as methane and/or carbon monoxide. The sintered bars are cold rolled, resintered, rolled and finally annealed at 700 DEG C. A temper rolling with a 1-3% reduction may follow.  Specification 996,199 is referred to.
Patent GB-1158663-A (GB)
Title: Improvements in or relating to Building Profiles particularly for Brick Walls
Inventor: TYSOE WILFRED MORGAN
IPC: E04G21/18
Filed: 1966-07-16
Abstract: 1,158,663. Bricklayers guide. W. M. TYSOE. 9 Nov., 1966 [16 July, 1966], No. 32073/66. Heading E1S. A guide for constructing 'brick walls comprises an elongated upright member, or a pair of such members, shown in cross section at 1 and 2 in Figs. 1 and 2 for use with cavity walls, having at the lower end or ends a screw threaded element 3 and adapted to be located betweeWbricks of the wall under construction, and at the upper end two stays 7A, one being in a plane parallel to the plane containing the element 3 and the other being in a plane at right angles to the plane of the first mentioned stay, the stays each having at its outer end a bolt at right angles to its plane also adapted to 'be located in the brickwork, the stays serving to locate the upright member or members in correctly plumbed position at the corner of the wall. When constructing cavity walls the stays may be removed before the construction reaches the top of the upright members 1, 2. The bolt 3 can be unscrewed and withdrawn when it isdesired to remove the elongate member or members. The member or members may carry markings representing the thickness of a brick plus mortar joint.
Patent GB-840359-A (GB)
Title: An accumulator change-over switch for the starter motors of internal combustion engines
Inventor: SIGMUND KAREL
IPC: H02J7/00
Filed: 1958-10-08
Abstract: 840,359. Electromagnetic relays. PAL-MAGNETON NARODNI PODNIK. Oct. 8, 1958, No. 32116/58. Class 38 (5). [Also in Group XXXV] An electromagnetic relay comprises a coil 3 having a movable core 4 carrying a bridge 5 supporting an oblique contact-ring 6 held in its normal position by springs 7. Contacts 11, 12 insulated from the frame engage with the ring 6. Also moved by the core is a lever 14 pivoted about a pin 13 which operates a set of series parallel contacts 19, 21, 23. Over a first range of movement, the changeover contacts reconnect the two sections of a vehicle battery from parallel to series, a second range of movement completes the main circuit to a starter motor through a series resistor over contacts 6, 11 and over a third range the contacts 6, 12 shunt the series resistor. The relay is mounted in the cover of the starter motor and the coil serves the additional function of moving the starter pinion into engagement.
Patent GB-608507-A (GB)
Title: Improvements in colour photography
IPC: G03C7/30
Filed: 1945-11-28
Abstract: 608,507. Colour photography. COOTE, J. H., and AUSTIN, A. ST. J. Nov. 28, 1945, No. 32117. [Class 98 (ii)] A multi-coloured photographic image is made by coating a base material with an emulsion containing silver halide and a non-mobile colour former, printing the layer produced from the first colour separation record of a multicolour set, coating the printed layer with a similar emulsion containing another colour former, printing from a second colour record of the set, and simultaneously developing the successively produced latent images and coupling to colour. A three-colour subtractive image may be made from a set of three-colour records by three such coating and printing operations, followed by simultaneous development and coupling of all the latent images. The emulsion layers may have a colloid-silver ratio of not more than 1.5 to 1, and preferably 1 to 1 as made by a method indicated in Specification 585,477, with the addition of specified high molecular weight colour formers. The support may be coated with a yellow producing layer which is printed from the blue record, followed by the magenta layer printed from the green record and then blue-green produced from the red record. The second and third emulsion may incorporate a fugitive dyestuff such as tartrazine to prevent printing through to lower layers, or ultra-violet light may be used with this object in view. Development may be direct to colour by use of a para-diethylaminoaniline type developer with silver removal by ammoniacal ferricyanide, followed by a hypo treatment, or, preferably the latent images are developed to silver, fixed, bleached, exposed to white light and then colour developed and treated for silver removal as before. 2 or 4 images may be produced on one side of the base. An anti-abrasive coating as of gelatin or polyvinyl alcohol lacquer may be applied at any stage after the final coating of the film.
Patent GB-291298-A (GB)
Title: Improvements in and relating to compression or suction blowers of the movable vane type
IPC: F01C21/08
Filed: 1927-11-30
Abstract: 291,298. Denholm, T. D. Nov. 30, 1927. Fixed - abutment type ; balancing moving parts.- In a rotary blower in which radially sliding vanes are provided with outwardly projecting portions H which bear directly on loose rings J situated in recesses C in the side covers of the blower, the rings J have no support from the blower shaft A.
Patent GB-260801-A (GB)
Title: Improved lens systems
IPC: G02B9/04
Filed: 1925-12-22
Abstract: 260,801. Warmisham, A., and Kapella, Ltd. Dec. 22, 1925. Lenses. - Photographic objectives of the type consisting of two halves separated by a central air space, each half comprising four elements, have the four elements of each half arranged to constitute two cemented doublets separated by an air space. Each doublet comprises a convergent and a divergent element and one doublet is divergent and meniscus-shaped, while the other doublet is convergent and meniscus-shaped and situated between the diaphragm and the divergent doublet. For use with distant objects the two halves need not be strictly symmetrical. Numerical data are given in the Specification.
Patent GB-418090-A (GB)
Title: Improvements in or relating to electric lampholders, thermionic valve sockets and the like
IPC: H01R33/46
Filed: 1933-11-20
Abstract: 418,090. Thermionic valve holders. LOEW, R., and LAZAR, E., 9a, Spittelauerplatz, Vienna. Nov. 20, 1933, No. 32330. [Class 39 (i).] Electric lamp holders and thermionic valve sockets are provided with contact devices each consisting of a spring- influenced metal strip which is otherwise unsecured and is slidably guided between abutments along guides in an insulating body, and comprises a contact-making part and a terminal end for a lead wire which perform a common positive movement when a lamp or valve is inserted. Fig. 8 shows a thermionic valve holder with apertures v to receive contact pins which bear on the portion b of a contact strip a provided with a soldering eye e for a connecting wire and with aT-shaped end r which can be bent to pass through a widened portion of a slot u when a helical spring f is compressed.
Patent GB-640352-A (GB)
Title: Improvements in or relating to a method of recovering tin and the product resulting therefrom
IPC: C22B25/00
Filed: 1946-10-31
Abstract: Tin is extracted from tin ores, wastes, stannic oxide, &c. by reducing the ore &c. to convert the tin into a form capable of reacting with an alkali metal hydroxide solution, and thereupon treating with the solution at a temperature of 75 DEG  C. to the boiling-point to form sodium, potassium or lithium stannate without simultaneously dissolving substantial amounts of impurities. Reduction of the ore may be effected with carbon, coal, coke, lamp-black, carbon monoxide, natural gas, hydrogen, &c. at say, 760-1090 DEG  C., avoiding appreciable fusion.  High grade ores containing, say, 35-40 per cent tin may be first mixed with inert material such as the spent residues of the later leaching operation. If excessive sulphur is present, this may be partially or wholly removed by a previous roast.  The reduced ore may be cooled in a non-oxidizing atmosphere.  One mol. oxidizing agent, e.g. an alkali metal nitrate, nitrite, peroxide, hypochlorite, hydrogen peroxide, &c. may be used with 5-7 mols. alkali metal hydroxide used for the treatment of the ore, which may be such as to produce a liquid extract directly; alternatively a solid mass comprising alkali metal stannate crystals, to be subsequently extracted, may be produced. Tin may be recovered from the crystallized stannate by electrolysis, or from the oxide precipitated from a solution of the stannate. Specification 324,685 is referred to.
Patent GB-1184577-A (GB)
Title: Production of Phosphoric Acid Diesters and Pyrophosphoric Acid Tetraesters.
IPC: C07F9/09
Filed: 1967-07-14
Abstract: 1,184,577. Preparing phosphoric acid diesters and pyrophosphoric acid tetraesters. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 July, 1967 [16 July, 1966], No. 32432/67. Heading C2C. Phosphoric acid diesters are prepared by reacting a saturated aliphatic or cycloaliphatic alcohol with phosphorus oxychloride in the presence of a Lewis acid at a temperature of from - 30 C. to + 10 C. to form a pyrophosphoric acid tetraester and hydrolysing this intermediate, if desired, to form the phosphoric acid diester. Preferred alcohols are primary or secondary mono- or dialcohols. The reactants are preferably used in a molar ratio of POCl 3 : alcohol of from 1: 2 to 1: 6. Preferred catalysts are aluminium chloride, iron (III) chloride, zinc chloride or boron fluoride. The hydrolysis of the tetraester intermediate is generally carried out with excess of water under acid conditions.
Patent GB-469225-A (GB)
Title: Improvements relating to revenue stamps and the like
IPC: D21H21/46
Filed: 1936-11-27
Abstract: 469,225. Security paper. GRIFFIN, E. G. (American Bank Note Co.) Nov. 27, 1936, No. 32510. Drawings to Specification. [Class 96] [Also in Group XV] Safety revenue, postage, &c. stamps consist of paper, one surface of which is coated with adhesive, the other having a finishing coating containing colouring matter and a design printed in an ink containing a water insoluble pigment, water soluble colouring matter, and a bodied plate oil vehicle whereby the stamp is protected from ordinary moisture, but upon soaking the water soluble matter is dispersed. The finishing coat may comprise soft glue, casein, starch or other sizing containing colouring matter, and the water soluble colouring matter in the ink may be an aniline dye.
Patent GB-1206056-A (GB)
Title: Method of casting laminated plates
Inventor: FROMSON HOWARD ARTHUR
IPC: B22D7/02
Filed: 1968-07-08
Abstract: 1.206,056. Casting composite slabs. H. A. FROMSON. 8 July, 1968 [12 July, 1967], No. 32568/68. Heading B3F. [Also in Division F4] A clad slab is cast in a mould unit 10, 11, 22 by introducing a molten base material 25 with a fusible mould material 26 into the reservoir 11 of the unit. The unit is tilted (Fig. 2) so that the material 26 runs before the base material 25 into the moulding cavity 10 to coat the cavity. The base material 25 runs into the cavity and becomes covered with the material 26. The unit is returned to its original position and a heat shield (not shown) placed over the casting cavity to keep the fusible mould material layer molten and top of the cast slab hot. Some of the fusible material is retained in the reservoir into which is poured a charge of molten cladding material 30. The unit is again tilted to cover the cast slab with the cladding material (see Fig. 5). A heat shield may be placed over the cast slab during solidification. Between the melt pouring operations an inert atmosphere can be used to protect the unclad cast slab. Moulds, linings and materials.-If carbon steel is used as a base material the fusible mould material can be inorganic salts and/or inorganic oxides, e.g. BaCl 2 , BaF 2 , CdF 2 , CaCl 2 , CaF 2 , CuCl 2 , PbCl 2 , PbF 2 , LiBr, LiCl MgCl 2 , MgF 2 , KBr, KCl, KF, AgCl, NaCI, NaCN, Na 3 BO 4  or SiO 2 . The mould walls must have a high heat capacity to allow the cast material to solidify, though the thermal conductivity of the fusible material must be lower than that of the mould walls if the fusible material is to be kept liquid throughout the solidification of the cast slab. The mould walls are of cast iron, graphite, steel, or of the following metals or their alloys-Cu, Ag, Al. The mould may be fluid-cooled in which case it is not necessarily of a high heat capacity material. The walls of the reservoir should have a low thermal conductivity to prevent premature solidification of the melts.
Patent GB-521162-A (GB)
Title: Improvements in or relating to dowel pins employed in the joining of wooden members together
IPC: E04B1/49
Filed: 1938-11-10
Abstract: 521,162. Hand tools for nailing &c. OPENSHAW, G. Nov. 10, 1938, Nos. 32602/38 and 18619/39. [Class 89 (iii)] [Also in Group XXV] The Figure shows a punch for use in driving a tubular metal dowel 6 as by means of a clamp into a wooden part. Specification 496,338, [Group XXV], is referred to.
Patent GB-1157894-A (GB)
Title: Improvements in Electric Irons
IPC: G07C1/30
Filed: 1966-07-21
Abstract: 1,157,894. Electric couplings. PHILIPS GLOEILAMPENFABRIEKEN N.V. 21 July, 1966 [24 July, 1965], No. 32750/66. Heading H2E. [Also in Division D1] The lead 7 enters the handle 2 of an electric iron through a pivoted inlet piece 3. In one extreme position the wall 10 of the inlet piece acts as an extension to the back plate 9 of the iron and the wall 4 acts as an extension to the top 8 of the iron. In the other extreme position the wall 11 of the inlet piece rests on bevelled underside 12 of top 8 and wall 4 becomes the extension of the back plate 9. The side walls of the handle may extend alongside the inlet piece and provide slots to contain the pivotal stubs 18 of part 3 and the back plate 9, which may be detachable, has inwardly projecting lugs for retaining the stubs in the slots.
Patent GB-468065-A (GB)
Title: Improvements in electric generators
IPC: H02K21/22
Filed: 1935-11-26
Abstract: 468,065. Magnetos. RALEIGH CYCLE CO., Ltd., and RAWLINGS, G. W. Nov. 26, 1935, No. 32762. [Class 35] A cycle lighting-generator comprises a multipolar annular permanent magnet. h and a wound multipolar armature j mounted within the hub d of the cycle wheel, the magnet being fixed to the wheel hub and the armature to the spindle a. The spindle carries a fixed ball race b and an adjustable ball race c co-operating with races on the hub d. The hub has a flange e drilled for spoke heads and a flange f to which is riveted a dished and preferably non-magnetic shell g carrying the magnet and having a flange g' drilled for spoke heads. The laminated stator is carried by a bracket k and the windings on the poles are of stepped formation, as shown, to utilize the maximum winding space. One end of the winding is connected to a terminal n carried by an insulating plate m secured with the bracket k to the fixed ball race by a nut o and locked by a nut p. The other end of the winding is earthed through the bracket k. Dust excluders and lubricant retainers i are provided for the ball races. The magnet may be of nickel-aluminium alloy or of cobalt steel and the machine may have twenty poles.