baber/WOPTO huggingface dataset:
Patent GB-1188417-A (GB)
Title: Electron Beam Apparatus
Inventor: GARROOD JOHN ROBERT
IPC: H01J37/28
Filed: 1968-04-03
Abstract: 1,188,417. Electron microscopes. J. R. GARROOD, and W. C. NIXON. 28 March 1969 [3 April, 1968], No. 15933/68. Heading H1D. A scanning electron beam microscope includes a deflecting system, for deflecting the incident probe beam B over the specimen S, comprising at least three deflecting stages D1, D2 and D3 spaced apart along the beam path. The deflecting stages D1, D2 and D3 which can be either electromagnetic or electrostatic may be coupled together to produce successive deflections in opposite directions resulting, as shown, in a lateral displacement of the beam parallel to its original direction, and thus providing a constant angle of incidence for the beam at the specimen surface over the scanning area. The amplitudes of deflection and the spacing of the stages may be such that the beam always passes through a very small aperture A in an objective lens L used for forming the beam into a fine probe. The relative deflection amplitudes of the stages may be adjustable to alter the angle of incidence of the beam at the specimen surface, Fig. 2 (not shown). Further, a switching arrangement may be provided in which the angle of incidence of the beam at the specimen is altered between two values in synchronism with detecting equipment which can display (and combine) two stereoscopically related images. The deflecting system may be used in a scanning mirror electron microscope, Fig. 4 (not shown), in which the beam is initially reflected back along its incident path, without entering the specimen, until it reaches the deflecting stage D3, which is chosen to be electromagnetic, where it is deflected in the opposite direction away from its incident path to be picked up by a detector system positioned such that the incident beam is deflected around it by the deflection stages D1 and D2.
Patent GB-801009-A (GB)
Title: Improvements in and relating to voltage mixing and transfer circuits
IPC: G05D3/14
Filed: 1956-05-23
Abstract: 801,009. Resistance networks. GENERAL ELECTRIC CO. May 23, 1956 [May 23, 1955], No. 15963/56. Class 37. [Also in Group XXXVIII] A coarse and fine selsyn system for positioning a work-table 1 in accordance with the angular rotation of an input member 20 comprises a non-linear resistance network 22 to which is connected the A.C. outputs of the coarse and fine selsyn receiver rotors 8a, 9a, 10a, 11a, the values of the non-linear elements of the network being such as to give an output voltage across load resistor 43 initially dependent predominantly on the voltage in rotor 8a for large misalignments, and progressively on the voltage in rotors 9a-11a for smaller misalignments. The non-linear resistors are preferably silicon carbide crystals in a binding, whose resistance decreases with increased voltage. Thus, with low voltages in the rotors, the outputs from 8a, 9a, 10a are blocked by the non-linear resistors and only the output from 11a reaches the load resistor 43. With increasing voltage in the rotors, the output from 11a is shunted by non-linear resistor 40, and the output from 10a becomes predominant. With further increases in rotor voltage the changes in the non-linear resistors are such as to shunt the high voltages and allow the smaller voltages to predominate the output signal across the load resistor 43. Specification 797,451, [Group XXXVIII], is referred to.
Patent GB-1118422-A (GB)
Title: Improvements relating to acoustic delay lines
IPC: H03H9/36
Filed: 1966-04-12
Abstract: A glass for use as an acoustic delay line has a composition in mol. per cent of SiO2 70-78, PbO 15-30, K2O \s4 Na2O 0-3.8, Na2O not more than 0.5, and Sb2O3 \s4 As2O3 up to 0.5, at least 95 mol. per cent consisting of SiO2 \s4 PbO \s4 (K2O and/or Na2O) with the balance, if any, of compatible ingredients.
Patent GB-729857-A (GB)
Title: Improvements in locking devices for telescopically arranged members
IPC: F16L27/12
Filed: 1953-06-11
Abstract: 729,857. Internal clamps. ELECTROLUX, Ltd. June 11, 1953 [June 17, 1952], No. 16094/53. Class 44. [Also in Group XXVIII] In a device for locking together telescopically arranged members of the type comprising a locking member in the form of an arcuate band having circumferentially displaced end portions, located between the members when inserted one within the other and bearing frictionally against one member while movably controlled by the other.member and adapted on relative rotation of the members in one direction to expand or contract to lock the members together, the locking member is formed with two abutment surfaces at or adjacent its end portions, which surfaces bear against one another with circumferentially-directed pressure on relative movement of the members into their locking position. In the arrangement according to Fig. 1 as applied to a telescopically extending vacuum cleaner tube consisting of outer and inner tubes 10 and 11 respectively the inner tube 11 is formed with a reduced part 13 to accommodate a resilient locking member 12 which latter is formed with grooves 15 which co-operate with a pin 16 on the inner tube 11. In operation, rotation of the inner tube 11 relative to the outer tube 10, from the position shown, moves the ends 23, 24 of the member 12 into abutting relationship to thereby expand the member 12 into engagement with the outer tube 10. In a modification (Fig. 5, not shown) guide rings are provided on the inner tube on each side of the locking member longitudinally of the tubes and are formed with oblique edges adapted on relative rotation of the tubes to engage the locking member and to axially displace the ends 23, 24 thereof. In the arrangement according to Fig. 6 the locking member is located in an enlargement 14 of the outer tube 10 and the ends of the locking member are of hook shape, the pins 16, in this case being provided on the outer tube.
Patent GB-633886-A (GB)
Title: Electric spark-gaps
IPC: H01T1/22
Filed: 1947-06-18
Abstract: 633,886. Spark-gaps. AMERICAN BOSCH CORPORATION. June 18, 1947, No. 16112. Convention date, Jan. 31, 1945. [Class 39 (i)] [Also in Group XXVII] In an electric spark-gap of the kind in which electrodes are arranged within an envelope with a gap between them, a resistor of high resistance is electrically connected to the electrodes, the resistor being positioned externally of the envelope and around the axis of the gap to effect a substantially-uniform voltage-gradient along the gap upon application of a voltage to the electrodes. A uranium glass envelope has sealed in it the tungsten stems 5, 6 of tungsten electrodes 2, 3 which latter are spaced about 3 mms. apart. Each electrode has a thin, metal shield 9 to prevent eroded material from being deposited on the envelope and forming a leakage path in shunt with the gap, each shield 9 being at least as distant from the envelope wall as the electrodes 2, 3 are apart. A few drops of radio-active solution such as a dilute solution of radium bromide in water is introduced into the envelope before the latter is evacuated and filled with argon at a pressure of 30-75 cms. of mercury. The peak voltage which will cause the gap to conduct is between 500-5000 volts, but preferably it is about 2000 volts for a capacity-discharge ignition-system although the gap may be used in connection with lightning arresters. A spring connector 12 grips the protruding part of the stem 5, whilst connection to the other stem 6 is made through a terminal (not shown). After both ends of the envelope have received a conductive coating 13 of material known under the Registered Trade Mark of " Aquadag," the whole unit is firstly coated with a solution of semi-conducting material, then with shellac and finally with a varnish. The end, conductive coating 13 may take the form of sprayed metal or reduced platinum oxide, whilst the semi-conducting coating may be either one of the many metal-oxide glazes that are adherent to glass or a suspension of charcoal in varnish. The semi-conducting material may be mixed with the outside protective coating and the solution applied as one coat. The resistance of the complete layer between stems 5, 6, which may be up to 10 megohms, enables a uniform electric field to be maintained across the spark-gap upon the application of voltage to the unit, irrespective of any earthed apparatus connected with the unit. The Specification as open to inspection under Sect. 91 states that the resistance could be of the wound type. This subject-matter does not appear in the Specification as accepted.
Patent GB-229179-A (GB)
Title: Improvements in wood-preserving compositions
IPC: B27K3/52
Filed: 1924-07-04
Abstract: 229,179. Wolman, K. H. July 4, 1924. Proofing against bacteria and fungi; fire-proofing; proofing compositions. -A mixture of a fluorine compound, a nitro-derivative of the phenols, and a compound of arsenic, in aqueous solution is used for preserving wood by impregnation. Substances which prevent iron being attacked by the foregoing, such as sodium arsenate, sodium bichromate, and borax, and fireproofing substances such as sulphate and borate of ammonia, sodium chloride and sulphate, may be added. An exemplary composition contains sodium fluoride, sodium fluosilicate, sodium arsenite, sodium dinitrophenolate and ammonium borate.
Patent GB-479824-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/34
Filed: 1937-06-10
Abstract: 479,824. Metal -vapour rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. June 10, 1937, No. 16150. Convention date, June 11, 1936. [Class 39 (i)] The ignition electrode for pool - type discharge devices comprises a rod 4 of insulating- material which penetrates the surface of the cathode 1 and a conductive member 5 mounted on the rod above the cathode. A body of conducting or semiconducting material 6 communicating with the cathode may be provided in the interior of the insulating rod and insulated from the conducting member 5. The rod may be formed of a metal bar with a coating of glass.
Patent GB-472670-A (GB)
Title: An improved cover for ships' hatches
IPC: B63B19/26
Filed: 1936-06-09
Abstract: 472,670. Hatches. NELSON, J. June 9, 1936, No. 16167. Addition to 455,854. [Class 113 (i)] In ships' hatches shutter-members 23 which carry gaskets 21, 22 which make water-tightjoints with the hatch section, and the coaming or an angle bar 9 thereon, are mounted on the coaming or a stiffener 26 thereon so as to be swingable towards and away from the hatch covers and also to be free to move rectilinearly towards and away from the hatch. This is effected by providing the hinge brackets with elongated slots 24 within which the hinge pins 29 work. The shutters are pulled into engagement with the sections and the hatch coaming by top and bottom toggle-bolts 37, 44, Fig. 5. The bolts are engaged with slots in the top and bottom brackets 39, 46 on the shutter and carry nuts 47, the bases of which engage in recesses in the bracket slots. The joint between the abutting sides of the hatch sections is closed by locking bars 59, Fig. 7, carrying gaskets 6, which bridge the meeting faces of the sections. The locking-bar is pressed down by swing bolts 64, 65, mounted on the sections engaging in slots in bridge pieces 62, carried by the locking-bars. In a modification, the locking-bar is hinged to one section. In a further modification, the abutting face 88, Fig. 15, of one hatch section carries a rib 89 which beds in a gasket 92 carried in the abutting face of the second hatch section. Swing bolts 84 press the faces of the sections into contact with one another.
Patent GB-732792-A (GB)
Title: Locking mechanism for fluid pressure operated devices
IPC: B64C25/22
Filed: 1952-06-27
Abstract: 732,792. Hydraulic machines. DUNLOP RUBBER CO., Ltd., and ALLBRIGHT, D. H. May 28, 1953 [June 27, 1952], No. 16169/52. Class 69 (2). [Also in Group XXVIII] A locking mechanism for two members 4, 5 relatively movable by fluid pressure, comprises a spring loaded catch actuating piston 12 in member 4 and a ramp 29 on the other member 5 and a plurality of pivoted catches 20 each having a head 26 to be deflected and trapped behind the ramp 29, a portion 24 bearing against a part 25 of the catchactuating piston to urge the catch portions into a locking position on movement of the catchactuating piston in one direction and a portion 23 projecting into and engaging the sloping sides of a recess 22 in the piston 12 to urge the catch portions into a releasing position on movement of the catch-actuating piston in the other direction. This movement is obtained by application of fluid pressure to the ramp side of the member 5.
Patent GB-1042908-A (GB)
Title: Producing coatings from polymerizable coating compositions
IPC: C09D4/00
Filed: 1965-04-15
Abstract: Acrylic resin coatings are produced by applying to a substrate, e.g. a motor vehicle body panel, a layer of a polymerizable coating composition comprising as one constituent either glycidyl methacrylate in an amount constituting a major proportion of the composition or 2-methoxyethyl methacrylate, and as another constituent a photoinitiator, and subjecting the layer at room temperature and atmospheric pressure to ultra-violet radiation within the wavelength range of 1849 to 4000 Angstroms. Suitable photoinitiators include benzoyl peroxide, p,p1-dichlorobenzoyl peroxide, benzoin, benzophenone, benzil, naphthalene and a ,a 1-azodiisobutyronitrile. There may be optionally present in the polymerizable compositions polymethyl methacrylate, cellulose acetate butyrate and other monomers, e.g. 2-ethylhexyl acrylate and n-butyl methacrylate.ALSO:Acrylic resin coatings are produced by applying to a substrate, e.g. a motor vehicle body panel, a layer of a polymerisable coating composition comprising as one constituent either glycidyl methacrylate in an amount constituting a major proportion of the composition or 2-methoxyethyl methacrylate, and as another constituent a photo-initiator, and subjecting the layer at room temperature and atmospheric pressure to ultra-violet radiation within the wavelength range of 1849 to 4000 Angstroms. The polymerizable composition may optionally contain polymethyl methacrylate, cellulose acetate butyrate and other monomers, e.g. 2-ethylhexyl acrylate and n-butyl methacrylate.  In Examples, the polymerizable compositions are applied, by spraying, to steel panels which had been cleaned, phosphated, and primed with a pigmented polyester or epoxy resin.
Patent GB-145975-A (GB)
Title: Improvements relating to the insulation of the leads passing through the case of electrical measuring instruments and the like
IPC: H01B17/30
Filed: 1919-06-27
Abstract: 145,975. Wood, W. H. L., and Metropolitan-Vickers Electrical Co. June 27, 1919. Sleeve couplings; binding- ports and terminals.-An electric lead is passed through the case of an electrical instrument by the following means. An internally screwed metal sleeve 6 receives a conductor 8 internal to the instrument and a conductor 9 external thereto and forms a connexion between them. The sleeve has a flange 7 which is embedded in an insulating bush 2 sur rounding the sleeve, and is formed so as to prevent relative movement between sleeve and bush. The bush 2 has a flange 3 which is enclosed in a metal box or cap 5 attached to the instrument case by screws 13. The bursting strain on the bush 2 caused by turning the metal sleeve 6, or the rods 8, 9 screwed into it, is transferred to the enclosing box or cap 5 and the bush thus saved from fracture. The fitting is preferably located inside the instrument case.
Patent GB-980638-A (GB)
Title: Improvements in power-responsive circuits
Inventor: GALMAN HERBERT
IPC: G01R21/00
Filed: 1961-05-04
Abstract: 980, 638. Power measurement. VOLTRON PRODUCTS Inc. May 4, 1961, No. 16269/61. Heading G1U. [Also in Division G4] A circuit providing an output current of amplitude dependent on power in an external A.C. circuit has an input for A.C. from such external circuit and first voltage variable impedance means to which an alternating voltage of the external circuit is applied to modify the amplitude of current fed to the output by shunting a proportion of the input current in dependence on the amplitude of the voltage; there being provided second voltage variable impedance means energized by the shunted current to which the external circuit voltage is applied to modify the current fed to the output by passing only a portion of each cycle of the alternating current, such portion being dependent on the phase relationship between the external circuit current and the external circuit voltage. In Fig. 1 a load current I energizes current transformer 13 whose secondary energizes phase detector 30 comprising like-poled diodes 31, 32, feeding equal resistors 34, 35 and D.C. millammeter 50, and also a capacitance shunted series network of incandescent lamps 61, 62, 63, 64 and resistors 66, 67 varying in resistance with lamp filament temperature. The supply voltage E energizes voltage transformer 22 whose secondary is connected between the centre tap of transformer 12 secondary and the junction of resistors 66, 67 over resistance 52; and also to the junction of resistances 34, 35 of the phase detector; the meter reading being proportional to E.I. cos. # the useful power. In Fig. 2 the load current energizes transformer 12 of which secondary 15 feeds the phase detector 30 and meter 50 while secondary 70 together with secondary 71 of supply voltage transformer 23 are connected to a bridge network of incandescent lamps 72, 73, 74, 75 in series with resistance 76, which present to current transformer 12 an impedance proportional to the input voltage E whereby the output of the transformer secondary 15 is porportional to E.I. and the reading of meter 50 is proportional to E.I. cos # the useful power. The phase detectors may be bridge connected for fullwave operation (Fig. 3 not shown) and the meter current may operate other indicating devices, servomechanisms, or switches.
Patent GB-500694-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H05G1/06
Filed: 1938-06-01
Abstract: 500,694. Supply systems for X-ray apparatus ; transformers. BRITISH THOMSON-HOUSTON CO., Ltd. June 1, 1938, No. 16408. Convention date, June 4, 1937. [Classes 38 (ii) and 38 (iv)] The energizing transformer for high voltage X-ray apparatus such as is described in Specification 491,477, has intermediate tappings on its secondary winding 29 connected to intermediate electrodes 20 of the X-ray tube, the magnetic circuit of the transformer comprising a non-magnetic portion of such dimensions that the inductive current drawn by the transformer is of the same order of magnitude as its capacitative current. The non-magnetic portion may comprise one or more air gaps or inserts of non-magnetic metal or of insulating material such as a phenolic condensation product. These high reluctance portions may be arranged at the Junctions 41, 42, 43, 44 of the limbs and yokes of the transformer core 38 and/or at the centre of the secondary coil 29.
Patent GB-1516825-A (GB)
Title: Process for purifying polluted waters
IPC: B01D17/02
Filed: 1977-04-20
Abstract: 1516825 Purifying water CREUSOT-LOIRE 20 April 1977 [30 April 1976] 16440/77 Heading C1C Water containing both hydrocarbons and detergents is treated to remove the hydrocarbons by adding liquid hydrocarbons to increase the hydrocarbon content to 0À1-5% by weight to give a weight ratio of hydrocarbon to detergent of between 1:1 and 10:1 and then passing the mixture through a column containing an oleophic packing material which adsorbs the hydrocarbons.
Patent GB-476392-A (GB)
Title: Improvements in or relating to flow regulating devices
IPC: F22D5/18
Filed: 1936-06-12
Abstract: 476,392. Liquid - level regulators. TURTON, G. T. June 12, 1936, No. 16470. [Class 135] [Also in Group XIII] In liquid-level regulators of the type in which vapour is admitted to a pressure chamber when a liquid falls below a hole in a vertical pipe immersed in the liquid, and thereupon operates a liquidadmission valve, the entrance to the chamber is by way of a perforation 14 in a thin diaphragm 13, or in a thick one, the edge of the hole being chamfered. A very small surface is therefore afforded for the accumulation of scale. The diaphragm 13 is clamped between plates 21, 21<1> bolted together. The device is specially intended for use with steam generators, in which case steam enters a pipe 2 by a hole 3 when uncovered and passes through a strainer 7 and orifice 14 to a pressure chamber 16. The local reduction of pressure due to the flow of steam through the hole 3 raises the level in the tube so that some water is carried by the steam up the pipe 2. On reaching the chamber 16 such water vaporizes. Pressure transmitted by a pipe 19 moves a piston or diaphragm connected to a valve which then opens to replenish the water in the boiler.
Patent GB-237715-A (GB)
Title: Improvements in cable, cord and like winding or absorbing devices
IPC: F21V27/00
Filed: 1924-07-10
Abstract: 237,715. Sturge & Baker, Ltd., and Sturge, W. H. July 10, 1924. Spring-drum apparatus for adjustable suspension.-In a winding device for cable, cord &c.. of the kind comprising a fixed drum upon which the cord is laid by means of a spring-actuated revolving arm fitted with a guide pulley or roller, the spring drum 4 is mounted within a recess in the fixed drum, on a spindle 5 the inner end of which is supported by the fixed drum 1. and the arm 7 projects outwardly over the front end of the fixed drum, the pulley 8 at its end being situated over the periphery of the fixed drum. The cord passes through a throat 9 carried on fixed arms 10, and the spring drum is fitted with a gravity pawl 16.
Patent GB-887259-A (GB)
Title: New diazapolymethine dyestuffs, their production and use
Inventor: BAUMANN HANS
IPC: C09B27/00
Filed: 1960-05-11
Abstract: The invention comprises dyes of formula <FORM:0887259/IV (c)/1> where R is an alkyl radical, A the divalent radical of an amine or enamine capable of coupling of which the amino group is joined to -N(+)R1R2R3 by way of an alkylene or arylene radical, X and Y radicals which do not dissociate in aqueous solution and which may be parts of a condensed-on aromatic ring which may be substituted by the equivalent of an anion and R1, R2 and R3 are alkyl radicals which may be substituted and may be united to each other, possibly by way of hetero atoms.  The dyes are made by treating a compound of the formula HANR1R2, or an appropriate quaternary ammonium salt thereof, with the required thiazolone-2-hydrazone by the process of Specification 782,310 with subsequent quaternisation if necessary. Illustrative of specified 2-hydrazones are 3-methyl-4-phenyl-, 3-methylbenz- and 3-methyl-6-chlor- and -phenylamino and -acetylamino-benz-thiazolone-2-hydrazones.  Representative of specified amines are <FORM:0887259/IV (c)/2> and <FORM:0887259/IV (c)/3> Indicated as alkylating agents are alkyl halides, dialkyl sulphates and alkyl esters of organic sulphonic acids.  Z(-) may be derived from inorganic, organic or complex acids, e.g. bromide, perchlorate, trichlorzincate, phosphate and oxalate. The dyes colour textile materials of polyacrylonitrile or poly-1,1-dicyanoethylene or copolymers thereof with compounds such as vinyl acetate and chloride and vinylidene chloride. Examples are provided of the preparation of the dyes and their use in colouring processes, blue shades being obtained. Specifications 860,584 and 860,634 also are referred to.