baber/WOPTO huggingface dataset:
Patent GB-1524783-A (GB)
Title: Process for the ultrasonic non-destructive testing of materials
IPC: G01N29/28
Filed: 1977-01-26
Abstract: 1524783 Ultrasonic flow detection KR UTKR MER GmbH 26 Jan 1977 [26 May 1976] 03203/77 Heading G1G In an ultrasonic flow detecting method, signals resulting from the receiver as a result of flaws are corrected for various test parameters in accordance with depth. Digital stores 15, 16, 18 are provided for the test parameter values, each store having respective locations for different depth (thickness) sections within the test piece 17. The stores are addressed by corrected pulses representing the depth sections from transmitter 9 and unit 23, and the outputs of the stores are summed at 20. As shown in Fig. 3, echo pulses from a plurality of transducers 1-1n are applied sequentially to a log amplifier 4 whose sensitivity is adjusted by the output of adder 20 via D/A converter 21, the output of amplifier 4 being applied to gate and threshold circuit 5. Alternatively, the output of amplifier 4 is applied, uncorrected to gate 5 and the output of D/A converter 21 is applied to the threshold input of gate 5, Fig. 5 (not shown). Alternatively, the amplifier output is applied to an A/D converter whose output is applied to a further adder to which the output of adder 20 is applied. The output of the further adder is then applied to gate 5, Fig. 4 (not shown). Still further, the output of the A/D converter is applied uncorrected to gate 5 and the threshold output of gate 5 is supplied from an adder which receives the output of adder 20 and the standard reference for the gate, Fig. 6 (not shown).
Patent GB-752663-A (GB)
Title: High frequency contact bridge
IPC: H03F3/54
Filed: 1954-02-03
Abstract: 752,663. Artificial lines. CONTRAVES AKT.-GES. Feb. 3, 1954 [Feb. 4, 1953], No. 3216/54. Class 40 (8). [Also in Group XXXVI] A contact bridge intended for use at high frequencies between movable conductive parts of transmission-line apparatus &c. comprises a coiled spring embedded in a square-section cavity formed between the parts, the diameter of the spring being somewhat greater than. the side of the cavity so that it is pressed equally against each of the four walls and is deformed into spatial curves whose projections in the axial direction are ellipses. Two such springs 91, 92 may form contacts between an adjustable plunger 80 and a coaxial line 71, 72 in a frequency-measurement device. In a modification of this example the springs are mutually displaced in an axial direction so as to allow a radial overlap. It is stated that since the contact pressure is the same at all points of contact the transfer impedance across the spring between the two movable parts is a minimum. The contact surfaces and the springs are silver or gold plated to reduce ohmic resistance.
Patent GB-590386-A (GB)
Title: Acylation of ricinoleic esters
IPC: C11C3/10
Filed: 1945-02-09
Abstract: Ricinoleic esters are acylated by heating with a neutral ester of another carboxylic acid in presence of an alkali metal alcohol oxide such as sodium methoxide or potassium tetrahydrofurfuryloxide.  The ricinoleic ester may be any substantially neutral ester of the total fatty acids of castor oil or a concentrate thereof with a saturated aliphatic, unsaturated or cyclic alcohol, e.g. methallyl, benzyl or tetrahydrofurfuryl alcohol or cyclohexanol, or a substituted alcohol such as b -ethoxyethanol.  In addition to alcoholysis, interchange of alcohols may occur.  The boiling points of the combined alcohols advantageously differ considerably while said alcohols are of low alcoholysing character such as secondary or b g -unsaturated alcohols.  Thus, an alkyl-phthalyl alkyl ricinoleate is prepared from isopropyl ricinoleate and diisopropyl phthalate.  The other carboxylic acid may be, for example, acetic, propionic, butyric, benzoic, furoic, phthalic, succinic, maleic, adipic, sebacic and tricarballylic.  To obtain high conversion, considerable excess of a reagent or volatilisation of a displaced alcohol is necessary.  In examples: (1) castor oil, excess of butyl acetate, and sodium in butanol are fractionated with distillation of a butanol-butyl acetate azeotrope giving butyl acetylricinoleate, monoricinolein triacetate and triacetin; (2) isopropyl ricinoleate, diisopropyl phthalate, and sodium in isopropyl alcohol are heated at 130 DEG  C. in vacuum, isopropanol being removed and isopropylphthalyl isopropyl ricinoleate formed with, if less than an equimolar proportion of diisopropylphthalate is used, some phthalyl bis-(isopropyl ricinoleate); (3) equimolar amounts of butyl ricinoleate and butyl benzoate with sodium in butanol are heated in vacuum at 100 DEG  C. with elimination of butanol and formation of butyl benzoyl-ricinoleate.
Patent GB-929317-A (GB)
Title: Mallet finger splint
Inventor: HUQ MOMINUL
IPC: A61F5/058
Filed: 1961-01-27
Abstract: 929,317. Splints. M. HUQ, and SAVORY & MOORE Ltd. Jan. 23, 1962 [Jan. 27, 1961], No. 3285/61. Class 81 (2). A splint for use in a case of drop finger comprises three lengths of substantially rigid material, detachably connected together so as to provide a continuous surface to support the proximal, middle and distal sections of the finger in the desired relative angular positions. The three parts 10, 11, 12 of the splint are preferably made of metal and the end portions are flanged to assist in locating the finger. The parts 10, 11 have transverse slots 10d, 11d for engagement with offset tongues 11a, 12a when the splint is assembled and the parts 11, 12 are bent downwardly and upwardly respectively to give the desired positioning of the finger sections necessary for treatment of drop finger. The splint is preferably faced with a cushioning layer and then secured to the finger by adhesive strapping.
Patent GB-969967-A (GB)
Title: Process for improving the mechanical properties of polymers
IPC: C08F8/00
Filed: 1961-01-27
Abstract: The physical properties of polymers of monolefinically-unsaturated hydrocarbons are changed by subjecting the polymer to the action of an "active Ziegler catalyst" while suspended or dissolved in a liquid vehicle.  By "active Ziegler catalyst" is meant a catalyst capable of polymerizing a monomer and which consists of at least one compound of a metal of Group IV to VI of the Mendel<\>aeeff Periodic System, and a metal, hydride, or organometallic compound of Group I, II, or III. of the System.  The aftertreatment of the polymers may be effected by polymerizing the monomers, in a liquid vehicle, in the presence of an amount of Ziegler catalyst in excess of that needed for polymerization. The treatment is generally carried out by maintaining the polymer in contact with the catalyst at a temperature of 60 DEG C. to 100 DEG C. for more than 2 minutes.  The polymer may be polyethylene, polypropylene, poly-n-butylene, polystyrene, and copolymers of ethylene and propylene. The polymers aftertreated need not be made by the Ziegler process.  The exemplified Ziegler catalysts are di-isobutyl aluminium hydride and TiCl4, and diethyl aluminium chloride and TiCl4.  Polymers exemplied are polyethylene, polypropylene, and a copolymer of ethylene and butene-1.
Patent GB-547828-A (GB)
Title: Improvements relating to electrically heated salt baths or the like
IPC: C21D1/46
Filed: 1941-03-11
Abstract: 547,828. Electrically heated salt baths. ORAM, J. E., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. March 11, 1941, No. 3330. [Class 39 (ili)] The preliminary drying out of an electrically heated salt bath is effected by means of a resistance 6 wound on a refractory core 7 and having terminals 5 which are inserted in clamps 3 in place of the starting electrodes. When the bath is dry, the heater 6 is removed and the starting electrodes inserted, and the latter are finally removed and the main electrodes 1 employed.
Patent GB-562721-A (GB)
Title: Improvements in line throwing apparatus
IPC: F42B12/68
Filed: 1943-03-16
Abstract: 562,721. Line - throwing projectiles. SPANNER, E. F. March 16, 1943, No. 3376. Addition to 550,290. [Classes 9 (i), 9 (ii) and 77] A line-throwing projectile b, fired from a barrel a, is fitted with a buoyant streamlined head c carrying an electric lamp d in its nose, as described in the parent Specification in relation to rockets. The head may be applied directly to the projectile stem b, or to an intermediate solid body b<1> having a tubular extension b<2>, as shown.
Patent GB-703703-A (GB)
Title: Improvements relating to metal containers and methods of manufacturing the same
Inventor: KNIGHT JOHN THOMAS
IPC: B21D51/04
Filed: 1951-02-12
Abstract: 703,703. Making hollow-ware. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 12, 1952 [Feb. 12, 1951], No. 3398/51. Classes 83 (2) and 83 (4). [Also in Group XVII] Bending; seaming sheet metal.-In a method of making a seamed sheet metal box from a blank bent to U shape to form a base 5, Fig. 3, and sides 3, 4 and having double folds 2a, 2b on its ends engaged by folds 7a ... c, Fig. 6, on a pair of end forming blanks 6, the seam 9, Fig. 8, is bevelled, preferably at an angle of 15 degrees to the box ends. The top edge 10 may be beaded or burred over and a closure may be aplied such as that described in Specification 703,558, [Group XVII]. The first blank is bent up from a flat blank, Fig. 2, which is first flanged at the edges to form the double folds 2a, 2b and then bent to U shape on the fold lines 3b, 4b. The corner portions 1 are belled or crimped to allow for spreading during bending. The end blanks 6, Fig. 6, are formed by bending flat blanks in two stages, the first forming the flanges 7a ... c, Fig. 5, at right-angles to the blank. A portion 8 of the metal is cut away at the corners where a junction between two folds occurs.
Patent GB-802611-A (GB)
Title: Improvements in lignin-reinforced rubber
IPC: C08L21/00
Filed: 1957-01-31
Abstract: Lignin, to be introduced into rubber compositions by co-coagulating a mixture of a rubber latex and an alkaline solution of the lignin, is pretreated with formaldehyde and urea, thiourea, a dialkylthiourea (such as dimethyl-, diethyl-, dipropyl-, or dibutyl-thiourea) or dithiobiuret, the lignin having been treated with 2-20 parts of the urea-type compound per 100 parts of dry lignin and 0.5-5 mols. of formaldehyde per mol. of urea-type compound.  Preferred lignin is that recovered by precipitation from sulphate process black liquor; modified lignins such as oxidized, slightly chlorinated, slightly nitrated and slightly sulphonated lignins may be used.  The lignin is dissolved in a solution of an alkali metal hydroxide, ammonium hydroxide or an amine of a pH from 8 to 14 after which the urea-type compound is added followed by the formaldehyde.  Alternatively the lignin is treated while suspended in neutral or acid aqueous medium and dissolved in alkali, or the urea-type compound and formaldehyde may be partially reacted and then added to alkaline lignin.  The treated lignin solution is preferably digested at 140-250 DEG  F. for 1 to 20 hours.  The treated lignin solution is then added to a rubber latex to provide 25 to 100 parts of untreated lignin to 100 parts of rubber and the solid obtained by spray drying or coprecipitation. The masterbatch so obtained is preferably heat-treated for 5 minutes to 1 hour with mastication or 2-10 hours without at 300-350 DEG  F., zinc chloride preferably being added.  The rubber so obtained may be vulcanized conventionally. Rubber latices which may be used are natural or synthetic rubber or mixtures thereof suitable synthetic rubbers being aqueous emulsion polymerizates of 1,3-butadiene, isoprene, piperylene, and 2,3-dimethyl butadiene which may also be copolymerized with each other or with up to 70 per cent (based on monomer) of styrene, vinyl toluene, vinyl naphthalene, a -methyl styrene, p-chlorostyrene, dichlorostyrene, a -methyl dichlorostyrene, acrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, methacrylamide, methyl vinyl ether, methyl vinyl ketone, vinylidene chloride, vinyl carbazole, 2-vinyl pyridine and 2-methyl-5-vinyl pyridine. The examples give details of a reinforced butadienestyrene copolymer.  Specification 633,725 is referred to.
Patent GB-1179378-A (GB)
Title: Improvements in or relating to Data Transmission Systems
IPC: H03M13/51
Filed: 1968-07-19
Abstract: 1,179,378. Digital transmission systems. SIEMENS A.G. 19 July, 1968 [21 July, 1967], No. 34442/68. Heading H4P. In a digital transmission system in which each significant interval contains one of a preset number of modulation states (e.g. frequencies) the receiver comprises means for inhibiting the receiver output if the amplitude of the modulation products in a band lying outside the frequency band of those states exceeds a given level. As described the received signal consists of one frequency chosen from a group of four. The signal is filtered at EF and limited at B, the limiter output feeding both a discriminator D and a filter F1. The discriminator provides an output on one of four leads connected to a threshold unit AB1 which provides the receiver output. Filter F1 passes any frequency components lying above or below the band occupied by the frequency group and consequently passes the modulation products which result if the band contains more than one frequency simultaneously. If the amplitude of these products exceeds a given level, threshold unit AB2 gives a fault signal S and inhibits the receiver output. If the transmitted signal is formed of a number of simultaneous frequencies, each chosen from corresponding groups of frequencies, the receiver consists of a corresponding number of circuits similar to that shown but with AB2 common to the outputs of all the filters F1.
Patent GB-336908-A (GB)
Title: Improved combined nut and washer
IPC: F16B39/26
Filed: 1930-02-01
Abstract: 336,908. Cook, W. H. Feb. 1, 1930. Locking nuts. - For locking nuts, a washer is provided, adapted to fit into a V-shaped annular recess in the nut and has projections which engage with the thread of the bolt, on contacting with the work surface. The axis of the V-shaped recess c, Fig. 2, is tilted, the outer wall being parallel to the axis of the nut a, and there is an inward flange at c<3>. The washer e, Fig. 3, has an annular body part shaped to fit the recess c or is fitted with prongs e<1>, inwardly directed and there are recesses e<3> in the part e, adjacent such prongs. On screwing the nut up against the work, the prongs are forced inta the thread of the bolt, and the ring portion is jammed into the nut. Specifications 122,381 and 272,807 are referred to.
Patent GB-803487-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L37/256
Filed: 1956-02-03
Abstract: 803,487. Pipe couplings. FINCH & CO., Ltd., THROWER, S. E. and OTTREY, J. A. Jan. 28, 1957 [Feb. 3, 1956], No. 3501/56. Class 99(1). A socket 12 on a pipe 11 receives the end 16 of a pipe 15 on which is loosely fitted a deformable sealing ring 17 which abuts against a shoulder 18 in the socket, and compression member 19 is moved along the pipe 15 and rotated to compress the ring 17, outwardly directed abutments 22 on the member 19 engaging inwardly directed abutments 21 on the socket part 12 to form a kind of bayonet slot connection. As shown the socket 12 is formed in the side wall of a vertical pipe. Flats 20 are provided on the member 19 for a spanner. The abutments 21 have two radially directed equiangularly spaced lugs behind which engage surfaces 23 of the abutments 22 which comprise long flange segments provided around the member 19. To limit angular movement of the member 19 a flange segment 22 is provided with a stop 24. The sealing member 17 may be made of a resilient matreial e.g. natural or synthetic rubber or a synthetic plastic.
Patent GB-928470-A (GB)
Title: Improvements in or relating to control systems for a multi-effect evaporator
Inventor: WILKINSON WILLIAM LIONEL
IPC: B01D1/00
Filed: 1961-01-31
Abstract: <PICT:0928470/III/1> In a multi-effect evaporator system, for concentrating aqueous solutions continuously, the sub-atmospheric pressure in the final effect 4 is automatically controlled by a pressure recordercontroller PRC4 and the flow of aqueous solution into, and the flow of concentrate out of, the final effect are automatically controlled by a temperature recorder-controller TRC4 and a liquid-level recorder-controller LRC4, respectively, so that a concentrate of constant composition is withdrawn from the system.  A vacuum is applied to the final effect and the pressure within it is maintained constant by an air-bleed 11 controlled by a differential pressure cell PRC4.  The temperature of the boiling liquid in the down-corner of the final effect is measured by platinum resistance thermometer 14.  When controller TRC4 indicates that the desired solute concentration has been reached, valve 12 is opened and concentrate flows out of the system through line 13.  At the same time, controller LRC4 causes valve 10 to open, and solution flows from effect 3 into effect 4.  The concentration of solution in effect 4 is thus decreased and its boiling temperature drops so that controller TRC4 causes valve 12 to close again.  When the liquid-level in effect 4 is restored to its predetermined valve, valve 10 will be closed by controller LRC4.  The concentration of aqueous uranyl nitrate solution is referred to.
Patent GB-1166914-A (GB)
Title: Improvements in axial piston hydraulic pumps and motors
IPC: F01B3/10
Filed: 1967-01-25
Abstract: 1,166,914. Reciprocating piston pumps and motors. BENNES MARREL. Jan. 25, 1967 [March 10, 1966], No. 3653/67. Heading F1A. In an hydraulic pump having substantially axial cylinders 13 in a fixed or stationary block 10, the swash plate 31 is mounted on a fixed or angularly adjustable cradle 2 by a pair of roller bearings 25 and 29. The bearing 29 taking axial thrust is formed by an annular race on the swash-plate 31, rollers with their axes extending radially and an annular race 26 supported on a sheet 27 of ductile metal, e. g. copper or aluminium, on the cradle 2. Recesses 33A on the bases of the piston slippers 33 in communication with the respective cylinders are of substantially the same cross-sectional areas as the cylinders. The bearing 29 is lubricated by radial passages extending from the central bore 39 of the swash-plate. The face of the cylinder block 10 adjacent the valve plate is provided with radially extending leakage grooves 14. In a further embodiment, Figs. 2 and 4 (not shown), the bearing (49) taking radial thrust forces is mounted between a spigot (47) on the cradle (46) and the bore (51) of a projecting flange (50) on the swash-plate (31).
Patent GB-625161-A (GB)
Title: Handsaws
IPC: B25F1/00
Filed: 1947-02-07
Abstract: 625,161. Hand saws. OLSON, V. Feb. 7,1947, No. 3744. [Class 61(ii)] A hand saw has the back of the blade formed as a graduated straight-edge 12 and also the right angular tip 14 of the blade. The teeth vary in pitch from the tip to the heel end, which latter is sharpened at 22 to serve as a cutter, and the toothed edge is also graduated. The edge 16 of the handle is formed at one part as a 90 degrees square and at the other at 45 degrees to the rear edge of the blade and a number of lines at indicated angles radiate from the corner of the handle across both blade faces. A hole 20 at the tip of the blade to receive a nail driven into the work enables a circle to be drawn thereon by a scriber located at a point along the scale at the toothed edge for the particular radius required. The handle also comprises a level 25 for plumbing and a double level 23, 24 for opposite levelling.
Patent GB-537998-A (GB)
Title: Improvements in electric switches, particularly for alternating current
IPC: H01H23/16
Filed: 1940-02-29
Abstract: 537,998. Tumbler switches. TUCKER & CO., Ltd, J. H., and FUKE, F. C. Feb. 29, 1940, No. 3749. [Class 38 (v)] In a switch particularly for A.C. movement to the " off " position causes one contact 17 to move away from the other 21 a short predetermined distance, say 0.005 inch for a 250 volt circuit, after which both contacts move in unison maintaining this distance of separation. In the form shown, both contacts are pressed upwards by springs 25, 26, the contact bar 21 bearing against t insulating parts of the base and the contact ring 17 bearing against the rod 21. When a dolly 5 is actuated, it straightens out toggle links 10, 12, and the lower ends of the links 12 bear on a ring 16 which has downwardly-projecting legs (not shown) straddling the contact bar 21 and engaging the ring-contact 17. The contact 17 is therefore moved down till the main part of the ring 16 engages the bar 21 after which this also moves down. The separation of the contacts depends on the difference between the length of the above-mentioned legs and the thickness of the contact bar 21 and the invention provides means for mass production of switches in which this separation is reliably obtained. The dolly is also controlled by a ciead-centre spring 15.
Patent GB-1150804-A (GB)
Title: Digital-to-analogue converter
IPC: G05B19/408
Filed: 1967-01-25
Abstract: 1,150,804. Digital/analogue converters. SPERRY RAND CANADA Ltd. 25 Jan., 1967 [25 Jan., 1966], No. 3763/67. Addition to 1,142,194. Heading G4H. The parent Application No. 25463/63 (Specification No. 1,142,194) is modified in that the outputs from all but the two most significant stages of a register 15 control transistor switches 3-10 which selectively connect two sets of parallelly connected resistances r 3 , r 5  ... r 17  and r 4 , r 6  ... r 18  into series with transformers T 2 , T 3 . The two most significant stages control two further transistor switches, the first determining whether the angle represented by the binary digit in register 15 lies between 0 and 180 degrees or 180 and 360 degrees, the second determining whether it is in the first or third quadrant or second or fourth quadrant so that the output signals from the secondary windings of transformers T 2 , T 3  on leads 70, 71 represent the sine and cosine of the angle.
Patent GB-1139422-A (GB)
Title: A process for the production of cross-linkable high molecular weight reaction products of isocyanates
Inventor: OERTEL GUNTER
IPC: C08G73/08
Filed: 1966-01-27
Abstract: 1,139,422. Bis-(methoxymethyl)-urea derivative. FARBENFABRIKEN BAYER A.G. 27 Jan., 1966 [3 Feb., 1965], No. 3770/66. Heading C2C. [Also in Division C3] In Example (4) the triglyceride of ricinoleic acid is reacted with methoxymethyl isocyanate in the presence of the stannous salt of 2-ethylcaproic acid by heating for 4 hours. #: #<SP>1</SP>- diaminodibutyl ether is then added to react with excess isocyanate. 0À20% of p-toluene sulphonic acid is added and the product heated to 140‹ C. in a vacuum to obtain a cross-linked gelatine-like product.