baber/WOPTO huggingface dataset:
Patent GB-825776-A (GB)
Title: Process and apparatus for spinning a yarn
IPC: D01H4/02
Filed: 1956-12-06
Abstract: 825,776. Spinning yarns. GOTZFRIED, K. Dec. 6, 1956 [Dec. 16, 1955], No. 37282/56. Classes 120(1), 120(2) and 120(3) In a process for pneumatically spinning a yarn, a helical whirling suction current is generated, the length of which is several times its diameter and the velocity of .which at the start end is substantially greater than at the other end, air-borne fibres are supplied to the current laterally and intermediate its ends, and the yarn formed is withdrawn in a direction opposite to the axial direction of the current. Fig. 1 shows a spinning tube 1, a suction nozzle 2 and a suction tube 3 which opens into the tube 1 and which serves for the supply of fibres 4 floating in a stream of air. The tube 1 is surrounded by a casing tube 28, which is connected to nozzle 2 and a suction pipe 14 which leads to a source of motion. The nozzle 2 has a bore 19, a narrow opening 16 for the outlet of spun yarn 17, and at least one suction opening 20 (Fig. 2), opening into the bore 19. The yarn 17 is withdrawn by rollers 18 and wound on a spool 21. A sliver 6 is drawn through a condenser 15 and is supplied by a roller 8 to a driven plucking roller 9, which co-operates with an endless belt 12 and which plucks fibres from the sliver, the fibres being sucked into a nozzle 5. The roller 9 comprises dotted bars 9a (Fig. 4), which are wound helically and which have short tooth-like plucking edges. Instead of the roller 9, a breaking device may be used to produce staple fibres from continuous filaments. One nozzle 5 may supply several pipes 3c...3h which lead to a plurality of juxtaposed spinning tubes 1c...1h (Fig. 4), a distributer head 23 being used and also a series of spools 21. A pot 26 collects heavier husk particles. The tangential arrangement (Fig. 2) of openings 20 gives air drawn therethrough a strong whirling effect and a powerful helical suction current is set up in the tube 1. The current is repeatedly obstructed by holes 27 and baffle rings 24 arranged in the tube 1 and some of the current is withdrawn radially. A constantly increasing twist is applied to the yarn formed, the twist increasing from the start of the yarn at about 1a to the point 16. Fibres coming into the range of the rotating yarn wrap around the latter. Fibres passing through the pipe 14 either go into a container and can be made into sliver, or they can enter a second spinning tube arranged in the opposite direction, or they may be fed back to the tube 3. In addition, "soft-handle" yarns can be produced by a synthetic fibre of very high breaking point being supplied at one point to the tube 1, which fibre forms the high - strength thread core, while a thread covering having a soft handle is formed by supplying wool, cotton or like fibres to another point of the tube 1 nearer the thread outlet than the aforementioned point. Also, a small air turbine having a central twist tube may be positioned at the thread outlet to give extra twist to the issuing thread.
Patent GB-1514524-A (GB)
Title: Soil cultivating machines
IPC: A01B49/02
Filed: 1975-09-10
Abstract: 1514524 Rotary soil working machines C VAN DER LELY NV 10 Sept 1975 [13 Sept 1974] 37305/75 Heading A1B A roller 30 comprising elongate rods 31 is arranged closely behind four contra-rotated assemblies 8 each comprising three arms 9 carrying at their outer ends freely rotatable soil working members 13 provided with tines 18. The soil working portions 19 of the tines 18 are inclined away from the vertical to cause the soil working members 13 to rotate when drawn through the soil.
Patent GB-1015794-A (GB)
Title: Oxazolidine derivatives
Inventor: HOWE RALPH
IPC: C07D263/06
Filed: 1962-10-02
Abstract: The invention comprises all stereoisomeric forms (including mixtures thereof) of compounds of the general formula <FORM:1015794/C2/1> (wherein R1 represents a hydrogen atom, an alkyl radical or an aryl radical optionally substituted by a hydroxy group, and R2 represents an alkyl or aralkyl radical) and acid addition salts thereof, pharmaceutical preparations containing them, and their preparation by reacting a compound of the formula <FORM:1015794/C2/2> with R1CHO. The compounds of the invention are b -adrenergic blocking agents, and may be administered orally or by injection in the form of pharmaceutical preparations (e.g. tablets, capsules, aqueous or oily solutions or suspensions, emulsions or dispersible powders) containing them together with a diluent or carrier.
Patent GB-1272828-A (GB)
Title: Test tube
Inventor: OBERLI RUDOLF
IPC: B01L3/14
Filed: 1969-07-25
Abstract: 1,272,828. Test tubes; agitating liquids. GREINER ELECTRONIC A.G. 25 July, 1969 [22 Jan., 1969], No. 37469/69. Headings B1C, B1X part A.  A test tube, e.g. of polypropylene, has, integral with its base 4, a projection which preferably has one or two sharp edges 7, 7' radially spaced from the inner wall of the test tube so that upon rotation of a holder (not shown) in which the test tube is fixed by means of pairs of pegs 9, 10, any liquid within the test tube is mixed by turbulence. The holder may be given a motion of rotary reciprocation at 5-10 c/sec. through an amplitude of 80 degrees.
Patent GB-1292176-A (GB)
Title: Lifting tongs
Inventor: SMITH HENRY
IPC: B66C1/44
Filed: 1970-08-04
Abstract: 1292176 Lifting tongs BRITISH STEEL CORP 30 July 1971 [4 Aug 1970] 37524/70 Heading B8H The jaws 34, 35 of a lifting tongs are constrained to be movable in a rectilinear path by means of pins 44, 45 engaged in slots 42, 43 in a frame 6. The jaws are connected to a lifting beam 4, adapted to be supported by a crane, by links 32, 33 which are pivotally connected by pins 40, 41 to the jaws and by pins 36, 37 to arms 23, 24, the arms 23, 24 being connected by links 21, 22 to the lifting beam. The pins 36, 37 engage in slots 38, 39 in the frame 6 and pins 26, 27 between the links 21, 22 and the arms 23, 24 engage in slots 28, 29. As described, two pairs of lifting tongs are supported from the lifting beam 4, Figs. 1, 2 (not shown), and a latch device is provided for holding the jaws open.
Patent GB-1215949-A (GB)
Title: A method and apparatus for removing a sample from travelling sheet or web material
Inventor: FLEMING JOHN WILLIAM JR
IPC: D21G9/00
Filed: 1967-12-12
Abstract: 1,215,949. Cutting samples. INDUSTRIAL NUCLEONICS CORP. 12 Dec., 1967 [14 Dec., 1966], No. 37671/70. Divided out of 1,215,947. Heading B4B. A method of removing a sample from a web 11 moving along a predetermined path in the direction of its length, comprises progressively cutting a sample strip from the web diagonally of and not including the web edges while the web is moving along said path. Apparatus for carrying out the method is as described in the parent Specification 1,215,947.
Patent GB-1445567-A (GB)
Title: Conveyor belts
IPC: B65G15/62
Filed: 1972-08-11
Abstract: 1445567 Laminates SOLAR THOMSON ENG CO Ltd 26 July 1973 [11 Aug 1972] 37679/72 Heading B5N [Also in Division D1] A conveyer belt comprises a body of flexible plastics material or rubber having embedded therein at least two sheets of fabric which are coextensive longitudinally of the body and at least partly co-extensive laterally of the body and spaced apart in the direction of the thickness of the body, each of the sheets including a plurality of laterally extending flexble filaments arranged in two layers, the laterally extending filaments having a modulus of elasticity exceeding 104 lbs./in.<SP>2</SP> and a diameter exceeding 0À001 inch, the rubber or plastics material penetrating the fabric to bond with the filaments. The fabrics may be woven, non-woven or knitted but are preferably woven fabrics in which the filaments 10 are disposed in two layers having spacing strands 12 extending between the two layers and lacing strands 3 passing through the layers and around the filaments. The filaments are preferably in the form of yarns spun or twisted together, the twist and/or crimping of the filaments being kept to a minimum. The filaments which may be of metal, nylon or polyethylene terephthalate, may have a breaking stress of 50,000-100,000 lbs./sq. inch and an extension at break of 5-20%. The belt may be produced by treating the fabric with a bonding agent and then with a thin layer of rubber, applied by spread coating or calendering, calendering on a sheet of rubber which will constitute the external belt cover, placing the resulting assembly with the cover face down on a table, placing on it a further sheet of rubber and another piece of the assembly with the cover facing upwards, applying pressure by means of a press or rollers to effect bonding, and heat and pressure in a press to effect vulcanization. The transverse rigidity of the belt may be varied by including additional layers of fabric of different widths in the assembly, by decreasing the distance between the sheets from the centre towards the edges, by increasing the rigidity of the rubber between the sheets at various positions or by crimping the fabric sheets at selected positions. Pairs of projecting ribs may be provided near the edges of the belt for receiving rope, the belt being supported and driven by two rope circuits, one on each side of the belt.
Patent GB-630890-A (GB)
Title: Flame-retarding material and method of making the same
IPC: D06M15/423
Filed: 1946-12-24
Abstract: 630,890. Proofing permeable materials. AMERICAN VISCOSE CORPORATION. Dec. 24, 1946, No. 37820. Convention date, Feb. 20. [Class 140] Products comprising cellulose or regenerated cellulose are given flame-retarding properties by associating therewith and fixing thereto a substantially water-insoluble complex of tungsten with an acid-soluble cyanamide-formaldehyde resin. The resin may be made by reacting substantially equimolecular proportions of cyanamide and formaldehyde in an aqueous medium having a pH of about 6 to 9, at temperatures between about 70‹ and 100‹ C. In an example, a fabric made from regenerated cellulose yarns was immersed in 5 per cent aqueous sodium tungstate solution for half-an-hour at 50‹ C. and the excess liquid then extracted. It was then immersed in an aqueous dilution of an acetic acid solution of a precipitate (constituting 2 per cent of the solution) obtained by reacting equal molar proportions of cyanamide and formaldehyde in a solution of pH 7 at 100‹ C., the precipitate being then washed and dried at 95‹ C. The treated fabric was then extracted and dried.
Patent GB-1356676-A (GB)
Title: Machien tool or press
IPC: B23Q7/04
Filed: 1971-08-13
Abstract: 1356676 Positioning tools in punching or nibbling machines PULLMAX AB 13 Aug 1971 [20 Aug 1970] 38127/71 Heading B3W A machine tool or press, such as a punch or nibbler, has a tool exchange unit for transferring a tool from a magazine to an operative position in the machine tool, the tool, in the operative position, being supported between a first element on the machine tool and a co-operating second element on the exchange unit the second tool being capable of gripping the tool at least during its transfer. A stationary tool remains gripped whilst a movable tool is merely guided by the transfer element during a working operation. As shown in Fig. 1, an exchange unit is rotatable about pivot 3 and has two second elements so that one may be loading up at point A of the magazine whilst the other is supporting the tool in the punch &c. The unit is rotated by a jack 8 coupled to a rack and pinion device. Two units may be mounted one above the other for simultaneously feeding a pair of tools to the punch. The second element 9 shown, Fig. 4, with the upper movable tool 26, Fig. 4, has a vertically extending groove 25 which receives a key 27 on the tool. A slide 16, axially displaceable in the element 9 by stationary jacks 20, 21 has a portion 18 of dovetail section, Fig. 5 (not shown) adjacent a recess 19 in the element 9 and vertically aligned with a notch 27a of dovetail section in the key 27. The slide is displaced, within the limits of end stops 22, 23, between locking and release positions in which portion 18 and the recess 19 are respectively opposite the notch 27a. Pins 24 prevent rotation of the slide and a spring loaded ball 17 holds the slide in its selected position. In use, a magazine (28) (Fig. 6, not shown), comprising superimposed pairs of turret discs, is rotated and vertically displaced to bring the required pair of tools to position A. Slides 5 are advanced to engage elements 9 with the tools, jacks 20 are actuated to move the slides 16 to locking position, slides 5 are retracted, the units are pivoted through 180 degrees and the slides 5 advanced to bring the element 9 to position B. The upper tool is connected to the actuating means and the slide 16 is moved to the release position by a second jack 21, Fig. 4, adjacent position B, so that the element 9 merely guides the tool. The lower tool remains gripped by its element 9. During the work operation the magazine is moved to bring the tools for the next operation to position A. After the work operation the slide 16 of the upper tool is moved to locking position by a second jack 20, the elements 9 on the slides 4 are moved to engage a set of tools at position A, the slides 1 and 5 are retracted and the units are rotated to return the used tools to the magazine and bring the fresh tools to position B.
Patent GB-1155053-A (GB)
Title: Sensitive Silver Halide Photographic Materials
Inventor: REES WILLIAM WENDELL
IPC: G03C1/825
Filed: 1966-08-25
Abstract: 1,155,053. Desensitized photographic silver halide materials. EASTMAN KODAK CO. Aug.25, 1966 [Aug. 25, 1965], No.38128/66. Heading G2C. Photographic silver halide is desensitized to visible radiation by the addition of a thiuram disulphide silver halide desensitizer and a substituted or unsubstituted phenazine which may have one or more benzene rings fused thereto and may be quaternized. The silver halide is used in X-ray materials and may be in emulsion or vacuum-deposited form and may be of the internal latent image type. The sensitivity to visible radiation may be further reduced by incorporating a dye in the emulsion or in a layer above the silver halide layer or by overcoating the latter with a low sensitivity silver halide emulsion such as a Lippmann emulsion or a silver iodide emulsion.
Patent GB-929920-A (GB)
Title: Improvements in or relating to conveyors
Inventor: LONG PETER WILSON
IPC: B65G13/12
Filed: 1961-10-25
Abstract: 929,920. Rollerway conveyers. WELDED & ALLIED PRODUCTS Ltd. Feb. 20, 1962 [Oct. 25, 1961; Dec. 5, 1961], Nos. 38177/61 and 43416/61. Class 78 (1). A rollerway conveyer is adjusted for height by means of an inflated rubber bag. Thus the rollerway comprises rollers 17 which are rotatably carried by tray 14, and tray 14 rests upon rubber bag 9 carried by channel 1. Bag 9 is contained within canvas hose 11 and is inflated by compressed air at 8 so that the bag expands to raise the tray 14 till the tray 14 engages the flanges of channel 1 and the rollers 17 then assume the raised position ready for use. When the bag is collapsed the rollers 17 are lowered into the channel 1 into their out-of-way position.
Patent GB-1434275-A (GB)
Title: Electrooptical device including a liquid crystal composition
IPC: G02F1/13
Filed: 1973-08-13
Abstract: 1434275 Liquid crystal compositions HITACHI Ltd 13 Aug 1973 [11 Aug 1972] 38283/73 Heading C4X [Also in Divisions G4-G6] A quaternary pyridinium or acridinium halide is added to nematic liquid crystal material to enhance electro-optic dynamic scattering. The substituent or the quaternary nitrogen atom may be an alkyl group with up to 20 carbon atoms or a phenyl group and X is Cl, Br or I. The nematic material may be a single Schiff base or a mixture thereof, for example (a) MBBA and EBBA; (b) MBBA and hydroxymethoxy - benzylidene - p - butoxyaniline; (c) MBBA, EBBA and methylbenzylidene-pbutylaniline; and (d) 4-methoxy-4<SP>1</SP>-butylazoxybenzene and 4 - butyl - 4<SP>1</SP> - methoxybenzene (eutectic).
Patent GB-1162053-A (GB)
Title: Device for Displaying a Sequence of Numbers
IPC: G06M1/20
Filed: 1967-08-21
Abstract: 1,162,053. Toothed gearing. OMEGA LOUIS BRANDT & FRERE S.A. 21 Aug., 1967 [31 Aug., 1966], No. 38405/67. Heading F2Q. [Also in Divisions G3, G4 and G5] Gearing for intermittently rotating drums, displaying hour numerals in a timepiece (see Division G3) comprises a wheel 15 having teeth 15a and toothless portions 15c. The wheel 15 drives a pinion 2 having alternate long and short teeth 2a and 2b respectively. When the toothless portion 15c is engaged between two long teeth 2a, the pinion 2 is locked against rotation.
Patent GB-1124655-A (GB)
Title: Gramophone
IPC: G11B23/00
Filed: 1965-09-09
Abstract: 1,124,655. Turnbuttons; clamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Sept., 1965 [10 Sept., 1964], No. 38541/65. Headings E2A and E2B. A gramophone has a mounting plate 1 which on one side carries a turntable 2 and at its other side is resiliently supported by spring means on a fixed part 15 of the gramophone, and means for securing the mounting plate tightly to said fixed part during transportation of the gramophone, said means including a securing device which comprises a screw-threaded member 6 rotatably supported in an aperture in the mounting plate and projecting from said other side of the plate, a turn-button 7 mounted on the projecting portion of said screw-threaded member and having screw-threaded engagement therewith, two spaced, parallel guide members 11, 12 projecting from said other side of the mounting plate and arranged to receive one arm of the turnbutton slidably between them so that the rotation of the screw-threaded member causes the turn-button to move axially of the screwthreaded member, the turn-button being arranged so that such movement thereof in one direction brings said one arm of the turnbutton into engagement with an abutment on the mounting plate and the other arm into engagement with the fixed part of the gramophone, and one of said guide members 12 being adjustable so as to reduce the distance through which it projects from said other side of the mounting plate in order to release the turn-button for rotational movement with the screw-threaded member, said one guide member being accessible for such adjustment from said one side of the mounting plate. As shown the adjustable guide member comprises a pin having a screw-threaded portion which engages in a screw-threaded aperture in the mounting plate. With this arrangement the turn button can be moved by the member 6 so that one arm engages the mounting plate and the other arm the part 15 so preventing relative movement between the part 15 and the mounting plate. In addition, to allow the mounting plate to be detached from the part 15, the member 12 can be rotated to reduce the depending length below the mounting plate so that rotation of the member 6 will rotate the turn button so that its arm no longer underlies the member 15. The member 6 has a head with a part-spherical surface adjacent the shank which co-operates with a corresponding surface of the plate 1 so that the member 6 can tilt.
Patent GB-1155016-A (GB)
Title: Process for the Temporary Protection of Carboxyl Groups
Inventor: WOODWARD ROBERT BURNS
IPC: C07D513/04
Filed: 1966-08-30
Abstract: 1,155,016. 2,2,2-Trichloroethyl esters and their reduction; cephalosporins. R. B. WOODWARD. 30 Aug., 1966 [10 Sept., 1965; 9 Dec., 1965 (6)], No. 38569/66. Headings C2A and C2C. Carboxyl groups, e.g. of cephalosporins are temporarily protected by esterifying a carboxyl group in a carboxyl group-containing compound with 2,2,2-trichloroethanol and subsequently converting the 2,2,2-trichloroethyl ester group so formed into a carboxyl group by treatment with a reducing agent. The acid chloride or anhydride may be employed as starting material but it is preferred to use the free acid in the presence of a condensing agent. The ester product may also be obtained by treating a salt of the acid with a reactive ester of a 2,2,2-trichloroethanol, e.g. an ester with a mineral acid or a strong organic sulphonic acid. The reducing agent employed may be nascent hydrogen, obtained, for example, by the reaction of a metal, metal alloy or metal amalgam upon a hydrogen donor, e.g. a carboxylic acid or an alkanol. The esters may also be split by treatment with an alkali metal in liquid ammonia or by treatment with a strongly reducing metal salt such as a compound of divalent chromium.
Patent GB-911147-A (GB)
Title: Production of golf balls
Inventor: NEALE ALBERT EDWARD TONEY
IPC: B29C35/08
Filed: 1957-12-12
Abstract: A cover comprises a mixture containing 60-90% of a polyolefin having a Vicat softening point greater than 83 DEG C., which can be crosslinked by irradiation, and an elastomer is moulded on to an elastic core and irradiated with high energy ionizing radiations to obtain a golf ball with improved hardness, resilience and cutting resistance which, due to the absence of vulcanizing agents, may be painted directly without the use of undercoats or chemical treatment. The irradiation is preferably carried out in the absence of oxygen whilst turning the balls to ensure even exposure.  Polyolefins referred to are polyethylene and polypropylene; elastomers referred to are natural rubber, butadiene-styrene, butadiene-methacrylate and butadiene-acrylonitrile rubbers, butyl rubber (a copolymer of an iso-olefin and a diene), polyisobutylene, copolymers of olefins, e.g. ethylene and propylene alone or with a higher olefin and graft polymers of natural or synthetic rubber.  As a result of the irradiation cross-linking of the polyolefin takes place and there may also be cross-linking with the elastomer, especially in the case of butyl rubber and polyethylene.  In the examples, the polymer composition also contained titanium oxide pigment. Radiations referred to are thermal neutrons, g -rays, X-rays, protons, electrons and helium nuclei; conventional sources may be used.  The Provisional Specification is not restricted to the treatment of golf balls but includes the treatment of compositions of a thermoplastic resinous material which can be cross-linked by means of ionizing radiations and a compatible elastomer.  The invention may be applied to cables. In addition to polyolefins, the thermoplastic material may be gutta percha, balata, styrene-butadiene resins, butadiene-methacrylate resins and cyclized rubber.  In a first example, a mixture of natural rubber, gutta percha, titanium oxide and zinc oxide moulded on to normal golf ball cores is irradiated.
Patent GB-1098769-A (GB)
Title: Improvements in or relating to free wheel coupling devices
IPC: F16D41/066
Filed: 1966-08-30
Abstract: 1,098,769. Ratchet clutches. OMEGA LOUIS BRANDT & FRERE S.A. Aug. 30, 1966 [Sept. 8, 1965], No. 38615/66. Heading F2C. A one-way clutch for a timepiece comprises one or more rollers 5 carried in notches 4 of a non-magnetic, e.g. brass, member 1 and magnetically attracted into wedging engagement with a scalloped or cylindrical inner surface of a gear rim 8 rotatably mounted by a non-magnetic disc (7) (Fig. 3, not shown) at (6) on the member 1, the or each roller 5 and gear rim 8 being a permanent magnet and soft iron respectively or vice versa.