baber/WOPTO huggingface dataset:
Patent GB-973486-A (GB)
Title: Anion-exchange resins and their use in the removal of dissolved oxygen from water
IPC: B01J47/00
Filed: 1961-03-02
Abstract: A method of removing dissolved oxygen from water comprises contacting the water with a quaternary ammonium anion-exchange resin having its functional groups at least partially in the dithionite form, e.g. half in the hydroxide form and the remainder in the dithionite form. The anion-exchange resin may have associated therewith cobalt in the metallic state or in a form reducible to metallic cobalt, whereby oxidation of dithionite occurs without fouling of the resin bed by formation of precipitate (sulfur).  A deionizing mixture of anion- and cation-exchange resins also may be present. Ion-exchange resins specified are the polymer of styrene and divinyl benzene which has been (a) chloromethylated and then reacted with t-amine, or (b) sulphonated, and cross-linked acrylic copolymer containing carboxylic groups. Examples give figures illustrating the removal capacity of resins of the invention.ALSO:A quaternary ammonium anion-exchange resin has its functional groups at least partially in the dithionite from, e.g. half in the hydroxide form and the remainder in the dithionite form, and finds application in removing dissolved oxygen from water.  The anion-exchange resin may have associated therewith cobalt in the metallic state or in a form reducible to metallic cobalt.  A deionizing mixture of anion- and cation-exchange resins also may be present. Specified resins are styrene polymerized and cross-linked with divinyl benzene and then chloromethylated and reacted with t amine, sulphonated cross-linked copolymer of styrene and divinyl benzene, and a cross-linked acrylic copolymer containing carboxylic acid groups.
Patent GB-198473-A (GB)
Title: Improvements in drills and grinders
IPC: B23B47/22
Filed: 1922-03-16
Abstract: 198,473. Hey, G., and Matravers, F. G. March 16, 1922. Drilling-machines, - The tool spindles of drilling and like machines are driven and fed by fluid-pressure. A turbine-rotor 9 is feathered on the spindle 6 and is driven by fluid-pressure which is supplied at 13 and exhausts at 14. The spindle is provided with a fluid-tight piston 17 and a slidevalve 19 which distributes fluidpressure from a supply 21 to feed or retract the tool spindle. Exhaust from the cylinder 16 takes place through the port 23. The valve may be controlled by an arm 26 co-operating with adjustable stops on the valve-spindle. The rate of feed is regulated by the adjustment of a valve 31 controlling a dashpot cylinder 27 in which a piston 29 on the tool spindle slides. The valve 31 may be held on its seat by a spring of such a strength that a slow feed and an automatic rapid return of the tool spindle are effected. The machine may be provided with more than one spindle, any of which may be driven through reduction gearing.
Patent GB-1206915-A (GB)
Title: 3-substituted-1-indole-lower-alkanoic acids and esters and derivatives thereof
IPC: C07D209/36
Filed: 1969-02-12
Abstract: 1,206,915. Derivatives of indole and 4,5,6,7- tetrahydroindole. STERLING DRUG Inc. 12 Feb., 1969 [20 Feb., 1968], No. 7719/69. Heading C2C. The invention comprises compounds of formulae wherein R 1  is H or C 1-6  alkyl; R 2  is H, C 1-6  alkyl, CO 2 (R 1 ) or CH 2 OH; R 3  is Ph, Ph-C 1-6 -alkyl, PhCOCH : CH or Z-CO where Z is Ph, biphenylyl, thienyl, furyl, pyridyl, isoxazolyl, thiazolyl, isothiazolyl, cycloalkyl, adamantyl, Ph-C 1-5 -alkyl or Ph-C 2-5 -alkenyl (each Ph being optionally substituted by the radicals indicated for R 4 ; R 4  is H, 1 or 2 methylenedioxy or ethylenedioxy groups, or up to 4 halogen, C 1-6  alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl, NO 2 , NH 2 , C 1-6 -alkanoylamino, di-(C 1-6 -alkyl)amino, CF 3 , C 1-6  alkanoyloxy or OH (excluding C 1-6  alkoxy as a single substituent); Y is C 1-6  alkylene; and basic salts of those compounds where R 1  is H. The indole derivatives are prepared by reacting the corresponding 1-unsubstituted indoles (in practice as the 1-Na compound made in situ with NaH) with X-Y-CO 2 (R<SP>1</SP>) (X = halogen); the acids (R 1  = H) are also prepared by alkaline hydrolysis of the esters (R 1  = C 1-6  alkyl). The tetrahydroindole derivatives are prepared (a) where R 3  is acyl, by reacting the corresponding 3-unsubstituted tetrahydroindoles with R 3 X in presence of a Lewis acid, or (b) where R 3  is Ph, byreacting in an acidic medium, an optionally R 4 -substituted 2-(R 2 COCHPh)-cyclohexanone with NH 2 -Y-CO 2 (R 1 ); in either case, acids so formed may be esterified, and esters may hydrolysed. Therapeutic compositions in the form of suspensions, emulsions, tablets or capsules, comprise compounds of the above formulµ which have anti-inflammatory activity.
Patent GB-245315-A (GB)
Title: Improvements in or relating to foot controlled valve operating means
IPC: F16K31/46
Filed: 1925-03-23
Abstract: 245,315. Gummers, Ltd., and Gummer, L. W. March 23, 1925. Actuating-mechanism.-Footcontrolled valve-operating means comprise a foot plate a held in a raised position by a chain g or like attached to a spring controlled mechanism of a valve and movable in or over guides connected to or forming a bracket or frame. Fig. 1 shows the footplate having projections b moving in slots c in the side members d of a bracket e which may be fixed to the floor or, as shown in Fig. 4, the plate may be formed with holes k through which project the legs h of the bracket, the plate moving between stops m on the legs.
Patent GB-911639-A (GB)
Title: Improvements in sensitive photographic emulsions and the preparation thereof
Inventor: HILLSON PETER JOHN
IPC: G03C1/485
Filed: 1959-03-06
Abstract: 911,639. Photographic emulsions. KODAK Ltd. March 6, 1959, No. 7803/59. Class 98 (2). A direct positive emulsion is prepared by adding to an unfogged silver halide emulsion from 20 to 250 mgs. of thiourea dioxide per mol. of silver halide, adjusting the pH to 8 or more, digesting the emulsion, and then adding a desensitizing agent. The initial pH of the emulsion may be below 7 before addition of the thiourea dioxide, and the pH may be adjusted to 7 after digesting the emulsion and before the desensitizer is added. The desensitizer may be a nitrobenzimidazole, a nitrobenztriazole, phenosafranine, pinakryptol green, 2-[(p-dimethylaminophenylimino) methyl] quinoline ethiodide, 2 - (2; 4 - dinitrobenzylidene) - 1 - ethyl - 1; 2- dihydroquinoline or a nitrostyrylcyclammonium quaternary salt or base such as 6-ethoxy- 1 - methyl - 2 - m - nitrostyryl - quinolinium toluene-p-sulphonate. Specifications 667,206 and 698,576 are referred to.
Patent GB-854289-A (GB)
Title: Belt conveyor
IPC: B65G17/06
Filed: 1957-03-08
Abstract: 854,289. Endless-belt conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. March 8, 1957 [April 16, 1956], No. 7809/57. Class 78 (1). A belt conveyer 20, Fig. 1, has stiffening plates 22 attached at intervals to its under surface which have means 24 for connecting them to alternate links of an oval link chain. The distance between the parts 24 is such that the belt has to be stretched to be connected to the chain. The stretching causes the parts between the plates 22 to become arched upwardly to form folds which permit the belt to stretch when travelling around the end drums and to yield at the folds when travelling in a curved path. Telescoping of the links of the chain is prevented by the pretensioning of the belt. In the form shown in Fig. 2 the belt has folds 25 formed in it before connection to the chain and helical springs 27, which act on abutments 26 at the ends of the plates 22, prevent telescoping of the links. The helical springs may be replaced by pairs of leaf springs. In the modification shown in Fig. 5, the bottom edges of the folds 25 are formed with ridges 32 which bear against each other under pressure and force apart the links 28, 29. In further modifications (not shown) spreader elements, e.g. helical springs or resilient stirrups, are provided in the aperture of each link between the curved ends of adjacent links.
Patent GB-852050-A (GB)
Title: A new or improved idler set for use with endless belt conveyors
Inventor: GODSELL ALBERT VICTOR
IPC: B65G39/10
Filed: 1958-03-12
Abstract: 852,050. Endless-belt conveyers. CONVEYING DEVELOPMENTS Ltd. Feb. 27, 1959 [March 12, 1958], No. 7891/58. Class 78 (1). In an idler roller assembly for supporting the belt, the centre roller 29 and the end rollers 32 are mounted on separate longitudinally spaced supporting members 26, 27 and the end rollers are supported by brackets 30 which are slidable along the member 27 to vary the distance between the rolleis. The members 26, 27 are tubular and their ends are welded to horizontal tubular supports 18. Each bracket 30 is tubular and has bearing lugs 31 at each end for supporting a roller. A slot 33 is formed in each bracket and receives a double-headed rivet 34, the inner head of which is within the member 27. Clamping screws 36 secure the bracket in position. The brackets and the tubes may be of square cross-section.
Patent GB-1214054-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H01F1/113
Filed: 1968-02-19
Abstract: 1,214,054. Permanent magnets. MAGNETFABRIK BONN G.m.b.H. 19 Feb., 1968 [18 Feb., 1967], No. 7915/68. Heading H1K. An anisotropic permanent magnet is made by selecting a powdered magnetic material having a remanence of 1À3-1À5 times the required remanence of the finished magnet; a coercive field strength of numerical value, when measured in oersteds, at least equal to the numerical value of the required remanence, when measured in gauss, of the finished magnet; and a bulging factor greater than 0À6, and press moulding the powdered magnetic material with a bonding agent in a magnetic field. The bulging factor is defined as (4#I.H)/4#I S . 1 H C  max. where 4#I is intensity of magnetization 4#I S  is saturation magnetization H is field strength  1 HC is coercive field strength. In an example, barium ferrite having B R  = 3800 G and  I H C  = 3000 Oe is reduced, mixed with 3% by wt. of plastics bonding agent and cold press-moulded in a field of 5000 Oe to form a body which, after removal from the mould, is hardened by heating at 140‹ C. for about 1 hour. Other specified magnetic materials are Ba-Sr ferrite, Ba-Pb ferrite, Sr-ferrite, Pb-ferrite and alloys of Mn-Bi, Mn-Al, and Y-Co.
Patent GB-541685-A (GB)
Title: Improvements in turning, boring, drilling and like machine tools
IPC: B23B29/16
Filed: 1940-05-04
Abstract: 541,685. Turning ; steady rests. STANLEY, A. E., and HALL, A. C. May 4, 1940, No. 8017. [Class 83 (iii)] A combined carrier for a tool-holder 16 and V-steady holder 17 for attachment to a turret lathe consists of a carrier 10 formed with sockets for receiving the stems 14, 15 of the holders, the carrier 10 being provided with a trunnion-like hollow shank 11 mounted in the turret and embracing a split-sleeve 31 which can be compressed by a screw 32 and constitutes a chuck to hold a centering device for the end of the work piece. The shank 11 and the stems 14, 15 are held in position by pad-bolts 18 or cotters, and the head 19 of the tool-holder is eccentric to its stem. The V-steady 24 is adjustable in a transverse slot 23 in the head 22 of its holder 15, and is clamped in the required radial position by a cone-headed bolt 28 engaging a slot 26 with sloping sides 27 formed in the steady, and the work-engaging surfaces 25, 25a differ in size.
Patent GB-433364-A (GB)
Title: Improvements in devices for protecting the ends of the windings of dynamo-electric machines
IPC: H02K3/44
Filed: 1935-03-15
Abstract: 433,364. Insulation for dynamoelectric machines. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 15, 1935, No. 8049. Convention date, March 20, 1934. [Class 35] The end windings are protected by a pre-formed dusttight cap consisting of rigid textile material. The spaces between the cap and the end windings may be filled with melted insulating material. In the form shown, the cap 3 consists of cotton treated with waterglass and is formed on a mandrel, and after it has been fitted about the end windings 2 it may be secured by binding and the cap and binding may be varnished.
Patent GB-1236592-A (GB)
Title: Improvements in gudgeon pin assemblies
Inventor: BATES DAVID COMPTON
IPC: F16J1/16
Filed: 1968-02-19
Abstract: 1,236,592. Gudgeon pins. HEBWORTH & GRANDAGE Ltd. 30 Dec., 1968 [19 Feb., 1968], No. 8066/68. Heading F2T. The ends of a gudgeon pin 5 are provided with bearing means 7 of plastics material. The gudgeon pin is of hollow form and the bearing means comprise buttons 7, each having a stem 8 fitted in the pin and a head 9 having a partspherical outer surface of radius equal to that of the cylinder bore. The buttons 7 are of plastics material such as nylon or P.T.F.E. which may be filled with a non-metallic substance such as glass or carbon in powder or fibrous form. In operation, if the pin 5 moves axially in its bore 4, one of the buttons 7 abuts the cylinder bore.
Patent GB-1147016-A (GB)
Title: Poly-1,3-benzoxazine-2,4-dione electric insulating films
Inventor: REESE ECKART
IPC: H01B3/30
Filed: 1968-02-20
Abstract: 1,147,016. Poly-1,3-benzoxazine-2,4-dione films. FARBENFABRIKEN BAYER A.G. 20 Feb., 1968 [21 Feb., 1967], No. 8129/68. Heading B5B. [Also in Division C3] A poly- 1 ,3-benzoxazine-2,4-dione film, is made by casting a solution in an inert organic solvent of the said polymer, obtained by reacting a di-o-hydroxyaryl dicarboxylic acid aryl ester with an organic diisocyanate in an organic solvent in a one step reaction, to form a film, and drying and stretching the film to at least twice its original length, the stretching being effected at a temperature of at least 200‹ C. The inert organic solvent may be dimethylformamide, dimethylacetamide, tetramethylenesulphone, dimethylsulphoxide, or a halo. genated hydrocarbon, e.g. methylene chloride, chloroform, tetrachloroethane or chlorobenzene. Mixtures of these solvents with other solvents such as aromatic hydrocarbons, e.g. benzene, toluene, aliphatic ethers e.g. diethylether, diisopropylether, or cyclic ethers, e.g. dioxane or tetrahydrofuran may also be used. Stretching is preferably effected at a temperature of from 250 to 300‹ C. Films so made, unlike prior films of the same material, are soluble, and have good electrical insulating properties. Examples are given.
Patent GB-1147018-A (GB)
Title: A polymerization catalyst
IPC: C08F36/04
Filed: 1968-02-20
Abstract: 1,147,018. Polymerization catalysts for dienes. GOODYEAR TIRE & RUBBER CO. 20 Feb., 1968 [20 March, 1967], No. 8139/68. Heading C3P. A polymerization catalyst for dienes comprises (1) an organometallic compound of a metal of Groups I, II, and III of the Periodic System, (2) a nickel salt of a carboxylic acid or an organic complex nickel compound or a nickel carbonyl, and (3) a fluoride selected from phosphorous, vanadium, iodine, antimony, arsenic, bismuth, niobium, or tantalum pentafluorides, platinum, uranium, osmium, or rhenium hexafluorides, tin, titanium, zirconium, hafnium, thorium, lead, germanium, or tellurium tetrafluorides, titanium, iron, cobalt, antimony, indium, vanadium, or palladium trifluorides, or zinc, cadmium, copper, or silver difluorides. The catalyst is used to polymerize butadiene alone, or in admixture with other dienes e.g. isoprene. An extensive list of component (1) is given in the Specification of which triethylaluminium is exemplified. The nickel compound exemplified is nickel octanoate. The polymerization may be carried out in bulk or in an inert solvent, and the catalyst "preformed" or formed "in situ". Polymerization in the examples is terminated by adding 1,1<SP>1</SP>,1<SP>11</SP>-nitrilotri-2-propanol and 2,4-di-t-butyl-para-cresol.
Patent GB-220679-A (GB)
Title: Improvements in or relating to methods of road and pavement construction and road block manufacture in which the surface is formed of rubber
IPC: E01C5/22
Filed: 1923-03-22
Abstract: 220,679. Case, G. O., and Novocretes, Ltd. March 22, 1923. Composite blocks and tiles. - Paving blocks are formed of a rubber wearing surface 1 vulcanized or solutioned on to to an under layer 2 of rubber concrete (i.e. particles of rubber embedded in cement) whereby integral connection between the rubber layer and the rubber particles 4 exposed on the surface of the rubber concrete is brought about. This composite formation may be applied to a base-block or layer 3 of ordinary concrete before the latter has set or by interposing a layer of cement. The rubber concrete may be united to the concrete base-layer before the rubber wearing surface is applied. The base-layer may be wholly or partly formed of the wood-sawdust concrete described in Specification 220,677, [Class 70, India-rubber &c.]. In forming tiles the base-layer is omitted. Specification 209,434 also is referred to.
Patent GB-1262884-A (GB)
Title: Book type reel container and method of making a container
Inventor: ELLIOTT CARMON MILLS
IPC: G03B21/32
Filed: 1969-02-14
Abstract: 1,262,884. Containers. EASTMAN KODAK CO. 14 Feb., 1969 [16 Feb., 1968], No. 8208/69. Heading B8P. A container 10 for rolls 26 of web material comprises two cover panels joined by a hinge panel 46 and each of the cover panels is provided with a body portion 14. Each body portion 12, 14 defines a plurality of recesses 24 for receiving the rolls 26 with their axes extending generally perpendicular to the associated cover panel. The hinge panel permits the cover panels to be moved from an open position to a closed position in which the cover panels are in spaced parallel relationship with the body portion(s) disposed therebetween. The cover panels may each be provided with a flap 48, 50 the latter flaps covering the recesses when the cover panels are closed (Fig. 3, not shown). The cover flaps are retained in their closed position by interengaging hooks and loops 52, 54 which project through openings 56, 58 in the flaps 48, 50. Each recess 24 is formed with a thumb slide or cleft 27 permitting ready access to the reel therein.
Patent GB-346128-A (GB)
Title: Improvements in or relating to ribbed knitted fabrics and the production thereof
IPC: D04B1/00
Filed: 1930-03-14
Abstract: 346,128. Knitting ; knitted fabrics. PHILLIPS, J. A., 2, Milner Road, Notting- ham. March 14, 1930, No. 8245. [Class 74 (ii).] A ribbed fabric with crossed sinker wales and with one face composed of plated loops is produced by feeding two yarns to. two sets of needles and causing the cylinder needles 1 to clear their ground and plating loops 3, 4 while the dial needles 2 retain their ground loops 3 in the tucking position. The new course of plating yarn 4a is then laid and taken by the needles 2. The needles 2 are then again projected to clear the loops 3 and the ground yarn is then laid and formed into loops on both sets of needles. A guard 5 retains the plating yarns on the shanks of the dial needles when they move forward.
Patent GB-1467271-A (GB)
Title: Bobbins
IPC: H01F5/02
Filed: 1974-02-22
Abstract: 1467271 Coil formers H HIRST 22 Feb 1974 8286/74 Heading B8M A bobbin, e.g. a coil former comprises a substantially rectangular tubular portion 22 having an outwardly directed continuous flange 24 at each end and made up of a first pair of members 52 constituting a first pair of opposed wall portions 56a of the tubular portion 22 and having portions 56c of said flange integral therewith; and a second pair of opposed members 54 constituting a further pair of opposed wall portions of the tubular portion and having further portions of said flange integral therewith. The first pair of members 52 are preferably U-shaped in cross-section whereby the second pair of opposed wall portions are constituted by portions 56b of the first members and by the second members 54. The first and second pair of members are formed to interlock preferably to provide a flush surface for the tubular portion and a flush surface for the inner surface of the flange 24. The members may be secured by adhesive. The second pair of members 54 are preferably cut from a length of channel strip to the required length whereby bobbins of varying width may be formed according to the requirements of use. The flange portions 56c are preferably provided with holes 24b for the passage of the ends of coils wound on the bobbin and may be recessed at 24c for use with a coil of aluminium strip. The bobbin components are preferably moulded from thermosetting synthetic plastics material and is of particular use in forming coils using cores made up of laminations of E-shape as disclosed in copending Specifications 1,466,878 and 1,466,879. In a preferred embodiment, if the depth of the bobbin is x, then the length of the bobbin is 3x and the width of the flanges is x. The length of the bobbin may lie in the range 3x to 5x, preferably 3¢x; and the width of the bobbin is preferably in the range x to 2¢x.
Patent GB-402978-A (GB)
Title: Improvements in or relating to oscillatory systems suitable for use in wireless signalling and for similar purposes
IPC: H03B5/34
Filed: 1933-03-20
Abstract: 402,978. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Braaten, A. M. ; Riverhead, Long Island, New York, U.S.A.) March 20, 1933, No. 8428. Convention date, March 19, 1932. [Class 40 (v).] A pair of reciprocallycoupled valves 1, 2 is used as an oscillation generator and the frequency is stabilized by a piezo-electric crystal Q connected across the plate or grid resistances, or between the valve plates, or between their grids. The valves each include resistances in the plate and grid circuits, and the plate of each is coupled to the grid of the other by condensers C1, C2. The crystal Q is connected across one of the grid resistances as shown. Alternatively it may be connected across one of the plate resistances, across one of the valves, between the plates of the valves, or between the grids. The constants of the circuit are such that the valves oscillate without the crystal. Screengrid valves may be used. The Specification as open to inspection under Sect. 91 describes modifications in which the crystal is connected between one plate and the other grid. Adjustment of frequency may be effected by a variable condenser connected either across the crvstal or across the valve plates ; or by adjusting the crystal gap. This subject-matter does not appear in the Specification as accepted.
Patent GB-1003189-A (GB)
Title: Thread cutting equipment for sewing machines
IPC: D05B73/12
Filed: 1963-03-02
Abstract: 1,003,189. Sewing machines. N. CORAH (St. Margret) Ltd. Feb.18, 1964 [March 2,1963], No. 8438/63. Heading D1G. A lock stitch sewing machine comprises a thread cutter pivotally mounted above the stitch plate, a thread cutter pivotally mounted below the stitch plate, a lever and linkage system associated with each cutter, and a single manually-operable lever coupled to said systems for simultaneous actuation of said cutters to sever the upper..and lower threads. An upper cutter blade 13 is pivoted at 14 to the presser foot 19, and has an extension 15 pivoted to the lower end of a lever 16 pivoted on the preser bar 17. A pin 18 on the upper end of lever 16 is disposed in the lower forked end of an arm 19 rigid with one end of a rod 20 horizontally slidable in fixed sleeves 22. An arm 23, rigid with the other end of rod 20, carries a pin 24 disposed in the forked end of an arm 25 rigid with a vertical shaft 26 journalled in the base plate 1 of the machine. A lower cutter blade 28 is pivoted at 31 below the base plate 1, and is rigid with a threadpositioning finger 29 disposed in advance of the cutting edge 30 of blade 28. The latter is connected by a linkage 32, 33, 37 to an arm 38 rigid with shaft 26. A finger piece 40, disposed above the base plate, is rigid with a vertical shaft 41 which is journalled in the latter and is connected by a linkage 42, 43 to arm 38. Actuation of finger piece 40 thereby serves to actuate the blades 13 and 28 simultaneously, the blades being returned by a tension spring 45. The strokes of the blades are determined by the position of collars 44 adjustably fixed on rod 20 between the sleeves 22.