baber/WOPTO huggingface dataset:
Patent GB-1462652-A (GB)
Title: Circuit breaker
IPC: H02H1/00
Filed: 1974-01-28
Abstract: 1462652 Protective arrangements WESTING- HOUSE ELECTRIC CORP 28 Jan 1974 [30 Jan 1973] 03816/74 Heading H2K In a protective arrangement for a line of an electrical transmission system at least one saturating current transformer supplies power from the protected line to a protecting circuit which also receives information concerning the level of line current from current sensing means to operate a circuit breaker in the line in the event of overload, the or each saturating current transformer saturating within less than 30 of the line current zero at currents above 120% rated current. In one embodiment saturating current transformers TA, TB, TC and non- saturating air core transformers T Î A, T x B, T x C monitor respective line currents 1A, 1B, 1C, the former transformers to supply power and the latter to supply information concerning line current levels, to a unit 20 consisting of a timing and trip unit TU for timing the tripping of the circuit breaker, capacitors CA, CB and a Darlington pair combination of transistors QA, QB arranged so that the voltage across the timing and trip unit TU is proportional to the maximum value of line current as sensed by the non-saturating air core transformers. In other embodiments the sensing is carried out by Hall generators, Fig. 8 not shown, by non- saturating transformers via potentiometer or resistor units, Fig. 9 not shown, or by saturating transformers, Fig. 7 not shown. In this latter case the transformers saturate at a time before maximum line current is reached and this maximum value is predicted from the rate of change of current before saturation occurs. The timing and trip unit comprises a long delay tripping circuit, a short delay tripping circuit and an instantaneous tripping circuit.
Patent GB-285034-A (GB)
Title: Improvements in and relating to electric heaters
IPC: F24H1/14
Filed: 1928-02-07
Abstract: 285,034. British Thomson-Houston Co., Ltd., (Assignees of Abbott, C. C.). Feb. 9, 1927, [Convention date]. Couplings.-Cup-like fittings 19 welded to the end of a sheathed heating resistance 11 carry lava insulators 22 through which protrude the ends of the terminals 17. Asphaltic sealing material 21 is run into the cups to ensure a firm connection.
Patent GB-368027-A (GB)
Title: Improvements in the manufacture and production of dimethylol urea
IPC: C08G12/12
Filed: 1931-02-06
Abstract: In the manufacture of dimethylolurea from about theoretical proportions of urea and formaldehyde in neutral or weakly alkaline aqueous media, i.e. media of a pH value of 7 to 9, at 20-45 DEG  C., the resulting solution of dimethylolurea is concentrated to a content of dimethylolurea of about 55-60 per cent by weight, at a temperature up to 45 DEG  C., either directly after mixing the reaction components or up to one hour thereafter, and the crystal pulp is dried at a temperature not exceeding 45 DEG  C. after allowing it to stand a short time, e.g. half a day.  Preferably during the process of concentration the water vapour is carried off, e.g. by working in vacuo or by leading through the solution a current of an inert gas such as nitrogen.  The heat of reaction supplies most of the heat necessary to distil off the water.  In order to p  complete the separation of the dimethylolurea, the reaction mixture may be cooled externally down to 15 DEG  C.  Specifications 294,253 and 299,487, [both in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-212062-A (GB)
Title: Improvements in or relating to rotatable joints or connection for use more particularly in turn trucks for vehicles of all kinds
IPC: B62D7/02
Filed: 1923-02-08
Abstract: 212,062. Errecaborde, J. D. Feb. 8, 1923. Sliding-friction bearings.-A joint between two relatively rotatable parts, such as the body and undercarriage of a truck or vehicle, comprises a member constituted by two juxtaposed symmetrical parts 1, 5 rigidly secured together and provided with peripheral enlargements 3, 6 forming between them an annular space in which a turning ring 9 is located. When applied to a vehicle, the part 1 is provided with arms 2 secured to the vehicle body 27 and the ring 9 is provided with arms secured to the underframe.
Patent GB-123817-A (GB)
Title: Improvements in Apparatus for Delivering Measured Quantities of Liquid.
Inventor: TUCKER THOMAS
IPC: G01F11/28
Filed: 1918-03-06
Abstract: 123,817. Tucker, T. March 6, 1918. Fixed-chamber apparatus for semi-liquids, with several chambers.-Relates to apparatus for measuring semi-liquids, such as varnishes, of the type comprising two measuring-chambers fitted with inlet and discharge valves operated in unison in such way that one chamber is filled while the other is discharged. The vessels a are of tapering shape, each closed at one end by a conical cover b and at the other end by a glass inspection plate c. The upper parts of the vessels are connected by a vent pipe m. The inlet valves e and the discharge valves g are operated in unison by a hand-lever k and rods h connected to the valve levers in such manner that the valves of one chamber are in reverse phase to those of the other chamber.
Patent GB-1035921-A (GB)
Title: Improvements in or relating to the manufacture of refractory hard metal boride material
IPC: C01B35/04
Filed: 1963-01-31
Abstract: A refractory hard metal boride (i.e. Group IV-VI) is produced by heating at 1100-1500 DEG  C. a reactant mixture of the metal oxide, carbon, and boron oxide, boron carbide or boric acid, to give the crude boride, which is analysed, then mixed with further metal oxide, metal carbide, boron oxide, boron carbide, and/or carbon, in amount to produce the pure boride, and fined at a temperature above that used in the first stage, but below 1900 DEG  C., e.g. 1600-1850 DEG C.  A binder may be included in the first mixture, which is heated in a conventional tunnel or shaft furnace, preferably in a reducing atmosphere.  The crude boride is then ground and analysed.  The adjusted mixture (with B2O3, if used, in slight excess) is compacted to give a self-supporting body which is fired, in an inert gas such as hydrogen, helium or argon, or in vacuo.  A product of fine particle size and greater than 99% purity is obtained.  In a modification, mixed borides may be produced, e.g. Cr + Ti, or Zr + Ti; or a mixture of boride and carbide, e.g. of Ti, may be obtained by controlling the proportion of oxides and carbon at the first stage.
Patent GB-879562-A (GB)
Title: Shut-off cock having a spherical plug
IPC: F16K5/06
Filed: 1960-02-04
Abstract: 879,562. Valves. NEUE ARGUS G.m.b.H. Feb. 4, 1960 [Feb. 19, 1959], No. 4032/60. Class 135. [Also in Group XXVIII] A spherical plug shut-off cock comprises two sleeves 3 for centring the plug, the sleeves, which also serve as pipe sockets, being fixed in the housing 1 by pins 8 arranged transversely to the axis of the sleeves. The operating spindle 9 is provided with a tongue 10 for engagement with the plug 4 and is guided by a bush 12 also secured in the housing by transverse pins 13, 14. Specification 879,563 is referred to.
Patent GB-183877-A (GB)
Title: Improvements in or relating to convertible apartments
IPC: E04B1/346
Filed: 1921-02-03
Abstract: 183,877. Cimini, P. L. Feb. 3, 1921. Hinge and swivelling joints.- A rotary elbow joint for piping employed in a rotary building comprises a portion 67 having a tapered end 68 and a shoulder 69. An internally - threaded member 70 is disposed around the portion 67 and screws on the portion 71 of the joint, which fits on the tapered part 68; a space 72 is left above the part 68 to allow of taking-up the joint for wear.
Patent GB-909975-A (GB)
Title: Improvements in and relating to textile winding machines
Inventor: MACKIE JOHN KAY PRINGLE
IPC: B65H63/06
Filed: 1960-02-04
Abstract: 909,975. Winding yarns. MACKIE & SONS Ltd., JAMES. Feb. 3, 1961 [Feb. 4, 1960], No. 4084/60. Classes 120 (2) and 120 (3). In winding yarns into cones from at least two tag-ended bobbins, the yarns on the latter are joined by adhesive which is thus given time to set before being subjected to the winding tension, and before the yarn reaches the traversing device it is continuously tested for undersize and oversize and tensile strength. In Fig. 1, a group of three bobbins to be unwound over-end to make a single cheese 16 is mounted on pegs on each of two plates on a rotatable creel platform 30, and the yarns in each group are joined by latex. The lead-yarn of the group below the winder is drawn through an eye 32 and a traverse-member 18, between which are provided the parts 34, 35, 36 of Fig. 7. 35 is an adjustable double disc tensioner and 36 a feeler-rod normally supported by the yarn, but which, when the yarn fails or slackens, tilts about a pivot 37 to cause a mercury-switch 38 to stop the winder. 34 is a detector for thin and thick places in the yarn : it comprises two bevelled discs 40, Fig. 2, separated by a shim of chosen size, so that when a thin place occurs in the yarn, the latter falls between the discs on to the shim and when it reverts to standard jams between the discs and breaks. When a thick place occurs, it jams between the gap in the discs and a sector 56 to break the yarn ; the curved edge of the sector is serrated and eccentric relative to a pivot 50 about which it can be adjusted relatively to a counterweight 52 so that the sector is the required height above the gap between the discs and the counterweight rests on one of the discs.
Patent GB-113027-A (GB)
Title: Improvements in Ingot Moulds.
Inventor: HARRIS ERNEST
IPC: B22D7/08
Filed: 1917-09-21
Abstract: 113,027. Harris, E. Sept 21, 1917. Moulds; clamping. - The cover 7 of an ingot flask or mould is secured to the body 1 by turn clamps 5, the shanks of which screw into nuts let into projections 2 through openings 4. The shanks may be secured by cotters, and the heads 5 may work on inclined surfaces 7<a> on the cover 1. A supporting ledge 8 may be formed on the body.
Patent GB-1150242-A (GB)
Title: Improvements in or relating to Electric Circuit Arrangements.
IPC: H03M7/00
Filed: 1967-01-27
Abstract: 1,150,242. Coders. SIEMENS A.G. 27 June, 1967 [28 Jan., 1966], No. 4104/67. Heading G4H. A coder comprising a first set of line loops a<SP>1</SP>-a<SP>3</SP> ... b1-b3 (Fig. 2) and a second set of line loops 11 . . . In with inductive couplings connecting selected pairs of the loops is such that input pulses applied to one or more of the first set of line loops, e.g. via transformers Ua1 . . . Ub3 induce an output pulse in one of the line loops 11-1n of smaller amplitude than the pulses induced in the remaining loops. The line loops 11-1n are connected to the primary windings of transformers U1 . . . Un which are initially set to one of two possible remanence states by a recording pulse Ej and all but one of which are set to the other state by the pulses produced in the line loops 11-In so that when a sampling pulse Aj is applied, only the transformer associated with the selected line loop changes state to induce an output pulse in the secondary winding of the transformer. The coder may be connected to a decoder comprising two further sets of line loops 21-2n and A, B . . . X similarly interconnected by inductive coupling elements so that small amplitude pulses are induced in some of the loops A-X the smaller amplitude pulses representing the information in recoded form and being transmitted by further transformers Ua-Ux to output windings wB-wX. In the embodiment of Fig. 3 the coder and decoder may be used in either direction input pulses on the winding alw . . . b3w resulting in output pulses being induced on selected ones of the windings wA . . . wX and input pulses on the windings Aw . . . Xw inducing pulses on selected ones of the output windings wal . . . wb3.
Patent GB-485784-A (GB)
Title: Improvements in, or relating to, charging machines for use in connection with heat-treatment furnaces
IPC: C21D9/00
Filed: 1937-02-12
Abstract: 485,784. Charging-machines. BIRMINGHAM ELECTRIC FURNACES, Ltd., KERFOOT, F., and HARRIS, J. C. Feb. 12, 1937, No. 4173. [Class 51 (ii)] In an arm charging machine comprising one or more charge-supporting arms d mounted on a travelling carriage a and each constituted by a pair of superposed members d<1>, d<2>, a purely vertical lift is imparted to the upper members by the horizontal movement of a series of connected wedges g which are disposed between rollers g<1>, g<2> on the arm members d<1>, d<2>. The wedges are actuated in the lifting direction by a chain h and in the lowering direction by a system of springs h<2>, while the horizontal movement of the arms d is effected by a chain e anchored to the arms at e<1> and passing round end sprockets e<2>, , e<3>. The sprocket e<2> is driven to impart movement to the chain by a reversible electric motor f which is also employed, when the clutch f<1> is thrown over, for driving the wheels f<3> and so moving the carriage a along the rails f<4>. The chain h is anchored also at e<1> and passes round an end sprocket h<5> and a sprocket h3 carried by a rocking arm j, the latter being operated, through a crank j<3> and a link j<4>, by a second motor j 1.
Patent GB-648354-A (GB)
Title: A process for the manufacture of urea-formaldehdye resins
IPC: C08G12/12
Filed: 1948-02-12
Abstract: 1 mol. of urea is reacted with 1.9-2.1 mols. of aqueous formaldehyde (containing usual acid impurities) in presence of sufficient sodium acetate and ammonia to produce an initial alkaline medium which becomes acid and finally reaches a pH of about 5 as the ammonia is volatilized.  The products are water-dispersible and particularly useful for impregnating textiles.  They may also be used, if desired, with starch, as adhesives, for coating paper to render it waterproof and more readily printable, and for preparing high wet-strength paper (see Group VIII).  The molecular weight distribution of the product is uniform.  The pH of the final dispersion is preferably adjusted to about 7.4 to give greater stability.  U.S.A.  Specification 2,034,479 is referred to.
Patent GB-401672-A (GB)
Title: Improvements in and relating to the melting or refining of magnesium and magnesium alloys prior to casting
IPC: C22B26/22
Filed: 1932-02-12
Abstract: Magnesium and magnesium alloys are prepared for casting by melting with a flux composed of magnesium fluoride and magnesium chloride, the latter containing from 2-10 per cent of water.  The temperature to which the metal is heated during melting and refining is kept below 800 DEG  C.  A flux composed of 40 per cent magnesium fluoride and 60 per cent hydrated magnesium chloride is described. Specifications 182,948, 219,287, and 280,530, [all in Class 82 (i), Metals, Extracting &c.], are referred to.
Patent GB-323946-A (GB)
Title: Die-holder for wire-drawing benches
IPC: B21C3/14
Filed: 1929-02-08
Abstract: 323,946. BrÚguet FrÞres. Dec. 15, 1928, [Convention date]. Drawing.-A die-holder for a wire-drawing machine comprises a box-like member provided with an integral bracket g<1> to receive the dies, and having a sliding or hinged cover i to close the box with the exception of portions of the slits provided for the passage of the wires. Water is supplied under pressure through a pipe l to cool the dies and wire, and, by spouting through the slits in the box member, to cool also the drawing drums b, c. Fig. 4 shows the die-holder with the cover open.
Patent GB-844942-A (GB)
Title: Improvements relating to industrial trucks
Inventor: QUAYLE GEORGE FRANCIS
IPC: B66F9/14
Filed: 1957-02-07
Abstract: 844,942. Masked lift-trucks. YALE & TOWNE MANUFACTURING CO. Feb. 7, 1957, No. 4263/57. Class 78 (3). In a masted lift-truck the fork or other loadcarrier 14 is carried by a plate 18 which is mounted on the lifting-carriage 13 by means of links 20, 21 which are pivoted to plate 18 at 29, 30, and to horizontally-movable sliders 31, 32 at 33, 34, the sliders being selectively lockable to the carriage by solenoid-operated dogs 40, 41 so that with dog 41 operative, operation of a ram 45 moves plate 18 to the chain-dotted position (Fig. 3). Ram 44 swings the plate in the. opposite direction. A further ram 54 acts between a bracket 55 on plate 18 and a bracket 56 on plate 19 to move the fork along plate 18. The dog operating solenoids 42, 43 and the rams 44, 45 may be controlled in accordance with movement of the truck steering-mechanism by an electro-hydraulic servo-system (Fig. 8, not shown).
Patent GB-866422-A (GB)
Title: New thiophosphoric and thiophosphonic acid esters
IPC: C07F9/40
Filed: 1959-02-06
Abstract: The invention comprises thiophosphoric and thiophosphonic acid esters of formula:  <FORM:0866422/IV (b)/1> where R and R1 are C1-4 alkyl, X is oxygen, sulphur, sulphoxy or sulphonyl, Y is OR1 or an organic radical linked to the phosphorus atom by a carbon atom, e.g. an alkyl, cycloalkyl, aryl, chlorophenyl or alkoxyvinyl radical, and Z is oxygen or sulphur, and wherein the benzene nucleus may contain further substituents, e.g. halogen, alkyl, alkoxy and acetoxy. They may be prepared by converting the appropriate thiophenol into a salt by reaction with an alkali metal alkoxide and reacting this with the appropriate O,O-dialkylphosphoric or -thionophosphoric acid chloride or O-alkylphosphonic or -thionophosphonic acid chloride, or by reacting the appropriate aromatic sulphenic acid chloride (obtainable by the action of chlorine on the corresponding disulphide) with the appropriate O,O-dialkylphosphite or -thiolphosphite, or Oalkylphosphonite or -thiolphosphonite.  The sulphoxy and sulphonyl compounds may also be obtained by oxidation in known manner of the corresponding mercapto compounds.  The products are useful as insecticides (see Group VI).  Specifications 812,530 and 819,689 are referred to.ALSO:Insecticidal compositions comprise as active ingredient a thiophosphoric or thiophosphonic acid ester of formula <FORM:0866422/VI/1> where R and R1 are C1-4 alkyl, X is oxygen, sulphur, sulphoxy or sulphonyl, Y is OR1 or an organic radical linked to the phosphorus atom by a carbon atom, e.g. an alkyl, cycloalkyl, aryl, chlorphenyl or alkoxyvinyl radical, and Z is oxygen or sulphur, and wherein the benzene ring may contain further substituents, e.g. halogen, alkyl, alkoxy or acetoxy, together with a solid or liquid carrier.  Aqueous dilutions in conjunction with an emulsifier and auxiliary solvent such as acetone or dimethylformamide are preferred. Specifications 812,530 and 819,689 are referred to.
Patent GB-776028-A (GB)
Title: Drill bits
Inventor: PERKINS JOHN MERVYN
IPC: B28D1/14
Filed: 1955-02-15
Abstract: 776,028. Drills. PERKINS & SMITH, Ltd., J. M. Nov. 4, 1955 [Feb. 15, 1955], No. 4445/55. Class 83 (3). A drill bit comprises an annular head with two or more radiallyspaced teeth 15, a cylindrical portion 7 having an auger-thread 8, a rearwardly tapering truncated conical portion 9, and a shank 11, the bit having a bore 13 extending at an angle to its axis, from the head to an opening 14 in the conical portion. A threaded part 12 enables an extension rod to be attached. A hole 16 in the auger thread assists in breaking up the material removed.
Patent GB-592578-A (GB)
Title: Improvements in high frequency electrical discharge apparatus
IPC: H01J25/74
Filed: 1944-03-09
Abstract: 592,578. Discharge apparatus. WESTERN ELECTRIC CO., Inc. March 9, 1944, No. 4446. Convention date, Dec. 11, 1941. [Class 39 (i)] In high - frequency electrical discharge apparatus in which a stream of charged particles is projected through an oscillating electric field to cause bunching and is then passed through an energy abstraction region, the length of the energy input region and the operating potentials are such that the particles, when their velocity is not varied by the oscillatory field, traverse the region in a time corresponding to one or more complete cycles of oscillation of the electric field. This reduces noise distortion in the apparatus. The electron stream passes from a thermionic cathode 12 through grids G1 and G2 defining the input space and grids G3 and G4 defining the output space. A drift space S is provided between these regions though substantial bunching occurs in the input region. The resonators 30 and 32 associated with the input and output spaces have tuning pistons 31 and 33. The output gap G3 and G4 may be short and maintained at a high potential. The collecting electrode 24 is maintained at a low potential to avoid overheating. An accelerating electrode may be provided between the cathode and the first grid, and the succeeding grids may be replaced by cylindrical electrodes. Specifications 523,712 and 528,041 are referred to.
Patent GB-952685-A (GB)
Title: Improvements in or relating to electric toasters
Inventor: BYRNE PHILIP LOUIS
IPC: A47J37/08
Filed: 1962-02-02
Abstract: 952,685. Electric toasters. GENERAL ELECTRIC CO. Ltd. Feb. 4, 1963 [Feb. 2, 1962], No. 4451/63. Divided out of 952,684. Heading A4D. An electric toaster as described in Specification 952,684 includes means for adjusting the length of the stroke of the bar 18, this is made temperature responsive and is therefore subject to heat developed in the toaster. A lever 32 is pivoted at 33 to the platform 13 and connected to a bimetal strip 37. This strip extends lengthwise of the bar 18, projects through a slot 40 in the bar 18 and engages a block 41, which thus constitutes a stop to limit return movement of the bar. The face of the block 41 has a step 43 in it to provide two abutment surfaces 44, 45 so that as the strip 37 heats up and becomes curved its end 42 is deflected over the step 43 and allows the bar 18 to take a longer stroke.
Patent GB-1015943-A (GB)
Title: X-ray intensifying screens
Inventor: CREDO RENATE
IPC: G21K4/00
Filed: 1964-02-03
Abstract: X-ray intensifying screens are produced by dispersing one or more synthetic resins and one or more fluoroescent materials in a gelatinous solution, depositing the solution on a cast base and allowing it to dry.  A screen produced by the method described is arranged to have a resistance to warping and to have a mechanical strength proportional to the content of syn thetic resins.  These are used in a latex form and may be, e.g. polyvinyl chloride, rubber, polybutadiene, polyethylene, polystyrene, polyvinylacetate, polyacrylic acid, polymethacrylic acid esters &c. which can be dispersed in gelatine solution.  To improve the flexibility of the screen plasticizers to match the resin used, are added.  Hardening agents for the gelatine are, e.g. aldehydes, diketones, ethylene glycol diglycidyl ether, triethylene glycol diglycidyl ether, hexane-1,3,6-triglycidyl ether, epoxy group containing organic compounds &c. Special materials may be added to the dispersion or put on the surface of the cast screen, e.g. light reflecting, fluorescent and water-repellent materials, fungicides &c.  The fluorescent material used may be calcium tungstate. In one of the examples, this is mixed, together with water and p.v.c. latex, with gelatine solution, glycerol plasticizer being added.  The casting liquid is then poured on to a clean, smooth base and subjected to a special drying process, after which the dried foil is removed from the base and cut up into the desired format.  Other examples are described, in one of which a light-reflecting layer of aluminium-bronze is sprayed on to the back of the dried foil.  In others, the foil is sprayed with a dispersion of polybutadiene, and diluted polyvinyl acetate latex, respectively.