baber/WOPTO huggingface dataset:
Patent GB-1417461-A (GB)
Title: Chromone derivatives
IPC: C07D405/04
Filed: 1973-04-12
Abstract: 1417461 Tetrazolyl chromone derivatives TAKEDA YAKUHIN KOGYO KK 12 April 1973 [12 April 1972] 17602/73 Heading C2C The invention comprises compounds having the general formula wherein m is 0, 1 or- 2; n is 0 or 1; and each R, which may be the same or different, is halogen, nitro, hydroxy, alkyl, alkoxy, acyloxy, carboxy, carboxamide or amino, or two R groups on any two adjacent carbon atoms at positions 5, 6, 7 or 8 together form a benzene ring; or pharmaceutically acceptable salts thereof. They may be prepared by reacting hydrazoic acid or a salt thereof with a compound of the general formula The compounds of the invention exhibit antiallergic activity and may be administered orally or parenterally alone or in admixture with a suitable diluent or carrier.
Patent GB-162575-A (GB)
Title: Improvements in eye glass chain
IPC: G02C11/00
Filed: 1920-06-28
Abstract: 162,575. Scott, A. June 28, 1920. Attaching eye-glasses to the person.-An eyeglass chain 2 having an ear loop 3 and a hook 4 for attachment to the glasses 5 is provided with a loose flexible tubular casing 1 formed from a continuous coil of wire to prevent the chain from kinking when the glasses are placed in their case.
Patent GB-1004360-A (GB)
Title: Preparation of aluminium sulphate
IPC: C01F7/743
Filed: 1962-05-08
Abstract: A process for preparing aluminium sulphate free from iron contaminants comprises (a) providing in a first crystallization vessel a first suspension of pure Al2(SO4)3 crystals suspended in a supersaturated first solution of Al2(SO4)3 acidified with H2SO4 at 50-185 DEG  F.; (b) further supersaturating said solution to induce crystallization of Al2(SO4)3; said crystallizing vessel being provided with a central tube through which a crystal suspension flows upwardly and around which it descends for recycling, there being provided a partially separated annular quiescent zone; (c) segregating from said first suspension a second suspension, in said quiescent zone, of a first system of fine crystals of Al2(SO4)3 in said first solution and, in the base of said first crystallizing vessel around the lower portion of said tube, a first system of relatively larger crystals of Al2(SO4)3 in said first solution; (d) withdrawing said second suspension in an accompanying portion of said first solution; (e) dissolving said first five crystals of said second suspension therein to form a second solution of Al2(SO4)3; (f) leaching an Al-Fe-containing clay with said second solution, said clay being present in an amount insufficient to neutralize said second solution, whereby the Al and Fe of said clay are extracted therefrom and whereby there is formed an enriched third solution containing dissolved Al and Fe in its ferric state; (g) alkalizing said third solution with more clay in an amount sufficient to precipitate the dissolved iron in said third solution to form a fourth solution of reduced iron content; (h) separating said fourth solution from the undissolved residue therein; (i) introducing said fourth solution into said first vessel; and (j) withdrawing from the base of said first crystallizing vessel said first layer crystals in said first solution.  The crystallization may be achieved using a plurality of crystallization vessels. Specifications 748,524 and 876,970 are referred to.
Patent GB-1127459-A (GB)
Title: Photographic processing apparatus
IPC: G03B27/30
Filed: 1966-04-22
Abstract: 1,127,459. Processing apparatus. VAN DER GRINTEN N.V. April 22, 1966 [April 23, 1965], No.17741/66. Heading G2A. At least part of the supporting structure or framework of a photographic processing apparatus consists of extruded members, e. g. of aluminium, having the same cross-section throughout their length. These members extend, parallel to each other, transversely in the apparatus between bounding end plates. The plates are attached to the members by tie rods. As shown in Fig.3, and also in Figs. and 6 (not shown) the apparatus is a combined contact-printing and developing device. The developing unit is covered by a member 28, the developing liquid being contained in troughs 11, 12 and a storage box is formed by members 4, 14 (see also Fig. 1 not shown). These members 28, 11, 12, 4, 14 are all formed by extrusion, as is also a fixed member (15) within the rotating exposure cylinder (16), the member acting as both a reflector and a support for the tubular lamps 29. The extruded member 2 is in the form of a box girder, to which the end plates are secured so as to make a rigid structure. As shown in Fig. 2, the extruded members are formed with grooves or ribs such as 42, 43, 44, 45, 47, which serve to support other structural parts of the apparatus. Thus a speed-regulating mechanism 39 is supported by a bracket 41 which hooks into groove 42; two members 31 and 32 themselves interlock at 43; protruding flanges of a switch can be pushed into the channels formed by ribs 45; and the hinge blades 49 of a door 50 can be pushed into the channels formed by ribs 48.
Patent GB-1501409-A (GB)
Title: Process for the extraction of a sweet substance from thaumatococcus daniellii
IPC: A23L27/30
Filed: 1975-04-29
Abstract: 1501409 Sweeteners TATE & LYLE Ltd 9 April 1976 [29 April 1975 13 Feb 1976] 17831/75 and 05719/76 Heading A2B [Also in Division C3] A process for the extraction of a sweet substance from the fruit of Thaumatococcus daniellii comprises extracting the fruit or a portion thereof with a dilute aqueous solution of an aluminium salt. The extract obtained contains an aluminium thaumatin adduct, i.e. the thaumatin contains bound aluminium. It may alternatively be produced by dialysing an aqueous extract containing thaumatin against an aluminium salt solution. The temperature of the extraction may be in the range 4 to 40‹C. Typical salts which may be used are aluminium sulphate hexadecahydrate, aluminium potassium sulphate dodecahydrate, aluminium ammonium sulphate dodecahydrate and aluminium chloride hexahydrate. The extraction may be effected using the whole fruit or isolated arils. The extract may be purified by using a cationic ionexchange medium, e.g. a carboxymethylcellulose or a sulphonic acid cross linked dextran such as a sulphopropyl resin. The sweetener may then be eluted using an aqueous solution of an alkali metal or ammonium salt of an acid, e.g. citric, tartaric, malic or lactic acid. The pH of the eluate may then be adjusted to 3-45 and the eluate ultracentrifuged.
Patent GB-670570-A (GB)
Title: Process for the manufacture of amino ethers
IPC: C07C323/25
Filed: 1947-07-07
Abstract: A compound of the formula <FORM:0670570/IV (b)/1> is obtained by reacting a compound of the formula <FORM:0670570/IV (b)/2> with a compound of the formula <FORM:0670570/IV (b)/3> where one of the X and A is halogen and the other is O-alkali metal and in the case where X is halogen and the reaction is carried out in the presence of alkali, A may also be -OH.  In the case where X is halogen and A is OH, the reaction may be effected in the presence of an alkali metal carbonate.  Alternatively the same product may be obtained by reacting a compound of the formula <FORM:0670570/IV (b)/4> with a compound of the formula OH.CH2CH2-halogen in the presence of alkali metal carbonate and reacting the resulting halogen ether compound with an amine of the formula <FORM:0670570/IV (b)/5> An example is given of the preparation of b -dimethylaminoethylbenzhydryl ether hydrochloride.  Samples have been furnished under Sect. 2(5) of b -dimethylamino ethyl benzhydryl ether prepared by the alternative processes. Specification 585,994 is referred to.  The Specification as open to inspection under Sect. 91 includes the preparation of compounds of the formula <FORM:0670570/IV (b)/6> wherein Ar and Ar1 represents unsubstituted aryl, alkyl substituted aryl, alkoxy substituted aryl, phenoxy substituted aryl, halogen substituted aryl, alkylamino substituted aryl and interlinked aryl, R is hydrogen and phenyl, Z may be O, S and NH, Y is a member of a class of hydrocarbon chains having not more than six carbon atoms consisting of an uninterrupted hydrocarbon chain, an oxygen interrupted hydrocarbon chain and R1 and R2 represent hydrogen, alkyl, cycloalkyl of not more than six carbon atoms, morpholine, piperidine, pyrrolidine and substituted piperidine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1278714-A (GB)
Title: Wear and chemically resistant coating composite
IPC: C23C4/10
Filed: 1970-04-15
Abstract: 1278714 Coated articles NORTON CO 15 April 1970 [16 April 1969] 17957/70 Heading B2E A composite structure comprises a substrate having bonded thereto a coating of at least one melt-sprayed layer of wear and chemically resistant ceramic material with pores therein and a chemically resistant furan resin in the pores sealing at least the top layer of the wear and chemically resistant ceramic material. The ceramic material may be alumina, chromia, chromia-alumina, alumina-titania, nickel oxide, aluminium silicate, zirconia, calcium zirconate, zirconium silicate, magnesium zirconate, aluminate, tungsten-, chromium-zirconium-, tantalum-, titanium-carbide, zirconium-, chromium-, titanium-, molybdenum diboride. Corrosion resistant metal undercoats may be applied between the substrate and the ceramic material, e.g. stainless steel, molbdenum, bronze, nickel, chromium, nichrome, nickel aluminide, cobalt and alloys thereof, applied by melt spraying, electroplating or sputtering the metal on to the substrate. A coating may comprise multiple layers of different ceramic materials or alternate layers of metal and ceramic materials. The ceramic layer may be impregnated with an acid catalysed solution of furfuryl alcohol and the structure then heated to polymerize the furfuryl alcohol in the pores. Other furan resins that may be utilised are those obtained by condensation of phenol with either furfural or furfuryl alcohol or by condensation of ketones and furfuryl alcohol. The single or multi-layer coatings may be preformed on a mould surface and then bonded to the substrate with resin, the top layer then impregnated before or after the moulded shape is fixed to the substrate. The substrates may be valves, vessels, pump housings and impellers, bearings, shafts, hoods, tanks, pipes, suction box covers, foils and forming boards and other products used in textile, petroleum, metalurgical and paper processing equipment.
Patent GB-460754-A (GB)
Title: Improvement in air circulating apparatus
IPC: F24F7/013
Filed: 1936-06-29
Abstract: 460,754. Apparatus for ventilating rooms. AMERICAN RADIATOR CO. June 29, 1936, No. 17971. Convention date, July 16, 1935. [Class 137] Centrifugal fans 40 driven by a motor 36 draw air through an inlet 21, filter 22, and rear chamber 28 of a casing 10, and discharge the air into the room in a direction controlled by operation of louvres 63 in the front wall opening 24, and of louvre plates 93, 100 in the upper and lower walls 19, 45. The fans draw in air through inlets 41 from chambers 28 and, under control of a damper 48 operated by an external lever 50, discharge it into an outlet chamber 29 on the walls of which are situated the various outlet louvres. The louvres 63 are arranged in two adjacent groups and are pivotally mounted at each end, each group being connected by a link 69 which connects flanges 68 on the innermost ends of the louvres of each group, both groups being simultaneously operated by a lever 76 so that the outgoing air may be directed either upwardly or downwardly, or the opening may be closed, according to the setting of the lever. The plate 93, when opened, directs the air upwardly and rearwardly, and the plate 100 downwardly and rearwardly, the louvres 63 directing it forwardly. The device is shown applied to the opening below a window sash, but its use is not confined to this application. Specification 460,755 is referred to.
Patent GB-838409-A (GB)
Title: Method and apparatus for spraying a mixture of fibers and resin
IPC: B29C41/36
Filed: 1958-06-06
Abstract: 838,409. Making fibre-resin preforms. GOOD  YEAR AIRCRAFT CORPORATION. June 6, 1958 [Oct. 17, 1957], No. 18100/58. Class 87(2). [Also in Group XXIX] A nozzle 6, for simultaneously spraying fibrous and resinous material to produce a preform of resin-bonded fibrous material on a perforated surface 5, to which suction is applied through a chamber 2 and exhaust line 4, has means for preventing the deposition of material on to its walls. In Fig. 2, a stream of fibre and air is fed to the rear 12 of a nozzle having a venturi passage therethrough comprised by the parts 13 and 11. A liquid resin bond is fed through a line 27 to a spray nozzle 25, and oompressed air is fed at 24 to an annular cham. ber 18 and issues from an annular throat 23 as a high speed stream preventing the deposition of material onto the walls of the part 13 and also causing the induction of resin and fibre through the nozzle. In the nozzle of Fig. 5, the fibre and air stream is fed to the nozzle at 36, resin is fed to an annular cavity 39 and issues from an opening 42, and compressed air is supplied at 50 and flows through passages 51, 52 between a venturi ring 45 and the parts 38 and 44. The surface 5 may comprise wire netting formed to the approximate shape of the desired preform article.
Patent GB-1134322-A (GB)
Title: Improvements in boxes
Inventor: MOLINS DESMOND WALTER
IPC: H01Q15/14
Filed: 1952-07-17
Abstract: 1,134,322. Boxes; packaging sheet material. MOLINS MACHINE CO. Ltd. 10 July, 1953 [17 July, 1952], No. 18147/52. Headings B8C and B8P. [Also in Division H4] A container for supporting dipole stock is divided by partitions into a plurality of compartments, each partition having an opening whereby the compartments communicate with one another, and one end wall of the container is provided with an outlet opening, the arrangement being such that a single continuous strip of dipole stock folded in zig-zag formation can be accommodated in the container so that a quantity of stock in one compartment is separated by a partition from a quantity in an adjacent compartment but is connected to it by a portion of stock passing through the opening in the partition. Fig. 5 shows a cross-section of the box B, which may be made of sheet metal, provided with partitions 4. The dipole stock S passes through apertures 8 in the partitions and the box is provided with a front aperture 5 through which the dipole stock may be fed to a cutting machine. Fig. 2 shows an end elevation of a box which is divided longitudinally into two halves by two walls 1 spaced apart and joined by stays 2 so that two sets of dipole stock may be stored side by side. The box may be provided with a cover (not shown) which protects the edges 12 of the partition 4 and may be bolted to flanges provided on the box.
Patent GB-1115156-A (GB)
Title: Carboxylation
IPC: C07C51/14
Filed: 1966-04-26
Abstract: Dicarboxylic acids are prepared by reacting at least one unsaturated fatty acid of formula <FORM:1115156/C2/1> where x + y + z = 5 to 19 and a + b = 1 to 3 and either a or b may be 0 with carbon monoxide in the presence of at least 15 moles hydrogen fluoride per mole of unsaturated fatty acid, a molar equivalent, based on the unsaturated acid, of water may be present. Acids listed are 10-undecenoic, lauroleic, myristoleic, palmitoleic, oleic, gadoleic, erucic, linoleic, linolenic, eleostearic, licanic, acachidonic and clupanodonic acids and examples describe the preparation of carboxystearic from commercial oleic acid; of carboxy-undecanoic acid from 10-undecenoic acid; and carboxybehenic acid from erucic acid.
Patent GB-120997-A (GB)
Title: Improvements in Feeding Mechanism for the Cutting Tools of Lathes and similar Machines.
Inventor: MCWILLIAM GEORGE WILLIAM
IPC: B23B21/00
Filed: 1917-12-13
Abstract: 120,997. McWilliam, G. W., and McWilliam, A., (trading as Bromac Engineering Co.). Dec. 13, 1917. Turning. - Relates to means for regulating the depth of cut-in lathes and similar machine tools. Figs. 1 and 2 show a hand-wheel a fast on a spindle b by which the cross-slide of the lathe or other part is actuated. Secured to the handwheel or spindle is a disk c in which is cut a spiral groove c<2>. A ball e moves in this spiral groove and also in a radial groove d<1> in a disk d that can be secured to a fixed disk h<2> by means of a bolt k, the head k<1> of which is movable in a tapered groove in the disk d. After the tool has been adjusted roughly by the handwheel a, the disk d is secured so that the ball c is at the outer end of the spiral groove. After making a cut, the tool can be withdrawn by the hand-wheel, the ball c meanwhile moving inwards along the spiral groove. In feeding the tool up again, the wheel is turned until the ball is again at the end of the groove. Any further movement of the wheel to feed the tool causes the disk d to rotate in frictional contact with the disk h<2>, the amount of feed being shown by the graduations on the disks d, h<2>.
Patent GB-123544-A (GB)
Title: Holders for Incandescent Electric Lamps.
Inventor: QUARMBY FRED
IPC: H01R33/955
Filed: 1918-02-12
Abstract: 123,544. Quarmby, F. Feb. 12, 1918. Shade-holders. - An electric lamp holder is provided with a large upper shade ring 12 with inward projections entering longitudinal indentations 13 in the holder. The ring is knurled or serrated.
Patent GB-530481-A (GB)
Title: Improvements relating to spraying devices for scent, hair lotion or other liquid
IPC: B05B11/06
Filed: 1939-06-26
Abstract: 530,481. Spray-producers. DALE METAL CONTAINERS, Ltd., J., and GIBLIN, A. June 26, 1939, No. 18506. [Class 69 (iii)] A cap for a spray bottle, which may be formed of artificial resin, is provided with a keyhole slot 4, the curved part being located at the centre of the top 3. Inside the top is formed a central recess 5, the radius of which is at least equal to that of the keyhole slot, adapted to accommodate a screw member 6 for holding a dip tube 11. On the outer top surface of the cap is formed a groove 7 in the plane as the keyhole slot 4. In the portion of the groove 7 which contains the elongated part of the keyhole is a shallow groove 8 extending to the periphery of the cap. The 'sprayer comprises a tube 9, fitted with a rubber bulb 10, and a dip tube secured by a nut 6.
Patent GB-1484225-A (GB)
Title: Light stabilizer compositions for polymers
IPC: C08K5/20
Filed: 1975-05-02
Abstract: 1484225 Stabilizing polymers AMERICAN CYANAMID CO 2 May 1975 [13 June 1974] 18517/75 Heading C3P Polymers are light stabilized with (1) a nickel amine, nickel aquo or nickel bis complex of a 2,2<SP>1</SP> - thio - bis(p - alkylphenol) wherein each alkyl group contains up to 18 carbon atoms and (2) a hydroxyalkyl amide R 1 CONR 2 R 3  where R 1  is alkyl or aryl, R 2  is C 2-4  hydroxyalkyl and R 3  is H or C 2-4  hydroxyalkyl in an amount sufficient to stabilize the complex against thermal degradation. Examples describe compositions comprising polypropylene, optionally with 2,4,6- tributylphenol or distearyl thiodipropionate together with (1) nickel butylamine complex, nickel aquo complex or nickel phenol-phenolate of 2,2<SP>1</SP>-thiobis(p-t.-octylphenol), and (2) N,N- bis(2-hydroxyethyl) benzamide, lauramide, stearamide or caproamide, N,N-bis(2-hydroxypropyl) caproamide, N-2-hydroxyethyl lauramide or 3,5-di-t.-butyl-4-hydroxy-N,N-bis(2- hydroxyethyl) benzamide.
Patent GB-595717-A (GB)
Title: Improvements connected with the dressing of grinding wheels
IPC: B24B53/08
Filed: 1944-09-28
Abstract: 595,717. Dressing grinding wheels. COVENTRY GAUGE & TOOL CO., Ltd., OLIVER, J., and JELLIS, M. Sept. 28, 1944, No. 18538. [Class 60] An attachment for dressing grinding-wheels for the production of helicoid forms adapted for mounting between the work centres of the grinding-machine and for rotation from the work-head thereof is characterised by a frame adapted to be mounted between the work centres, a member pivotally mounted for axial and pivotal adjustment on said frame, the pivotal axis of said member being at right angles to the axis through the work centres, a tool-holding slider adapted for independent reciprocation at will in said member along an axis at right angles to the pivotal axis of said member, the tool being carried by said slider and having in turn its axis at right angles to the reciprocating axis of said slider. On a U-shaped frame 2 mounted between work centres 11 and driven from a carrier 13 is pivotally mounted, on a pillar 18, a block 17 in which a bush 21 is keyed for axial adjustment. A slider 16, slidable in the bush by a rack 27 and pinion 25, carries at its upper end a diamond tool 22. The block 17 is adjusted to the correct setting angle by the use of a gauge block 23 inserted between a sine arm 24 on the block and a datum peg 20 on the frame 2. The block 17 may be adjusted axially on the pivot 18 by the insertion of gauge blocks between the block and the frame 2. The dressing attachment is fed past the grinding wheel in the same way as the work-piece by the same lead screw mechanism.
Patent GB-553900-A (GB)
Title: Improvements in and relating to furniture, coffins, floor boards, lining boards and other articles of wood
IPC: A47B47/04
Filed: 1942-12-31
Abstract: 553,900. Floor boards &c. CAMERON, G. M. Dec. 31, 1942, No. 18566. [Class 145 (ii)] A material for use in the construction of furniture, coffins, floor boards, lining boards and other articles of wood, consists of flat, rectangular pieces of waste or prime timber 1, joined by one or more tongues 3 along one longitudinal face engaging corresponding grooves 5 in the contacting face of another block, the longitudinal sides of the assembly being provided with binding strips &c. extending along a plurality of pieces. The end faces may have similar junctions.
Patent GB-789968-A (GB)
Title: Improvements relating to the manufacture of high pressure hose
Inventor: RICHARDS HERBERT STEPHEN
IPC: B29C48/09
Filed: 1955-06-28
Abstract: 789.968. High pressure hose pipes. ROBERTS & SONS, Ltd., A. Aug. 25, 1955 [June 28, 1955], No. 18588/55. Class 99(2). In a method of manufacturing high pressure hose, for example for a hydraulic braking system, of the kind in which an inner tube is extruded over a metal mandrel or core, one or more layers of fabric are applied over the inner tube by braiding or otherwise, an outer layer of rubber is extruded over the fabric layers and the composite hose is held compressed while it is vulcanized or cured, the hose after the outer layer of rubber is applied is inserted into a sheath or sleeve of vulcanized rubber of a grade different from that of the outer layer of the hose and the sheath or sleeve is contracted on to the hose to compress it radially, the hose then being vulcanized while it is held in the sheath or sleeve. The inner surface of the sheath or sleeve may be formed with closely spaced longitudinal ribs or grooves to produce complementary longitudinal grooves or ribs on the surface of the finished hose. The sheath or sleeve in its normal state may be of an internal diameter slightly less than the external diameter of the hose and the sheath or sleeve expanded by fluid pressure to permit insertion of the hose and its withdrawal after the vulcanising operation. A lubricant or releasing agent may be employed between the sheath or sleeve and the hose. The means for carrying out the invention forms the subject-matter of Specification 789,969 [Group XXXII].