baber/WOPTO huggingface dataset:
Patent GB-1495767-A (GB)
Title: Apparatus and method for adjusting the output of a plurality of geophones to compensate the effect of variations in the near surface character of the earth
IPC: G01V1/24
Filed: 1975-05-01
Abstract: 1495767 Correcting geophone signals MARK PRODUCTS Inc 1 May 1975 18315/75 Heading G1G To compensate for lateral variations in the sound-conducting properties of the weathered earth layer below a geophone array and for individual geophone sensitivity differences the geophone signals produced by background seismic noise are compared with a reference signal, and subsequent signals from any geophone produced by desired seismic energy are subjected to a gain inversely proportional to the amplitude ratio of the respective noise signal to the reference signal. Thus the resulting signals with these gains will have matched amplitudes, enabling them to be composited for attenuating surface wave noise. In the embodiment shown, noise signals from geophone signal amplifiers 12, 13 pass through filters 16a, 18a to conditioning circuits 16, 18 in each of which the averaged, squared signal is formed and sampled. The sample is compared at 20, 21 with the reference signal from generator 23. The amplifier gains are set by the comparators in accordance with the above-mentioned ratios.
Patent GB-810281-A (GB)
Title: Improvements relating to power presses and similar machine tools
Inventor: DEYKIN RONALD FREDERICK
IPC: B30B15/10
Filed: 1955-06-25
Abstract: 810,281. External shoe drum brakes. HORDERN MASON & EDWARDS Ltd. June 22, 1956 [June 25, 1955], No. 18434/55. Class 103 (1). [Also in Group XXIV] An external contracting brake 73, 74 and disc clutch (see Group XXIV) are arranged between the flywheel and adjacent frame sidewall of a press. The brake comprises shoes 73, 74 pivoted together on a free pin 77, one shoe 73, mounted on a fixed pivot pin 83, carrying a cylinder assembly having two tandem pistons 87, 88 (to permit use of a smaller diameter) on a common rod 89, and acting on a screw 90 carried by the other shoe 74. A spring 81 on a rod 78 contracts the shoes into engagement with the shaft hub 41, whilst application of air pressure at 92, 93 to the two pistons 87, 88 expands the shoes for brake release. A spring 97 holds the shoe 73 against an adjustable stop 96 in brakerelease position. Specification 810,282, [Group XXIV], is referred to.
Patent GB-319419-A (GB)
Title: Improvements in or relating to protective gear for alternating current electric systems
IPC: H01F38/30
Filed: 1928-06-26
Abstract: 319,419. Buchanan, J. H., and Associated Electrical Industries, Ltd. June 26,1928. Transformers.-A current transformer for split conductor protection has three limbs 11, 12, 13 bounding two windows through which the conductors 16, 17, pass. Two secondaries 19, 20 are wound on the outer limbs, are connected in series and are differentially associated with a relay 21.
Patent GB-1393518-A (GB)
Title: Device for introducing articles into a horizontal conveyor system
IPC: B65G47/00
Filed: 1973-04-17
Abstract: 1393518 Transferring articles to and between conveyers RALFS GmbH 17 April 1973 [20 April 1972] 18536/73 Heading B8A Articles 3 are fed to an overhead conveyer belt 11 by a chain conveyer 10 having carriers 1a, 1b. An article 3 is fed into the conveyer 10 by placing it on a flap 2 which is then swung to the full line position in which it completes the casing of the conveyer 10. In moving to the latter position, the flap 2 operates a switch (not shown), which starts the conveyer 10. When the article reaches a switch 13, and operates it, a solenoid 6 is energized so as to operate a discharge flap 5. This however, is overidden, and the conveyer 10 is stopped, if the zone of the conveyer 11 adjacent the transfer station is occupied. When the carrier la (or 1b, as the case may be), reaches a switch 14, the flap 5 is returned to its normal position. The carriers and the flaps 2 and 5 are slotted so as to enable the carrier to pass through the latter.
Patent GB-565629-A (GB)
Title: A method of and means for regenerating catalysts
IPC: B01J23/94
Filed: 1942-12-30
Abstract: 565,629. Catalyst regeneration. HEASTIE, B., MANDERSTAM, L. H., and WARNER, L. W. Dec. 30, 1942, No. 18537. [Class 1 (i)] Catalysts, especially nickel and its salts, are regenerated by hot dehydrated hydrogen admitted to the regeneration chamber after being preheated in part by heat exchange with the hot hydrated spent gas and in part by external sources. The hydrogen may be supplied through a helical conduit E, conveniently made in two parts joined by a sleeve 8, and enclosed over part of its length by the spent gas conduit D and over the remainder by a conduit C for externally heated fluid, the whole surrounding the heating jacket B of the catalyst chamber A, and being enclosed by an insulating shroud B<1>. This may be lined with polished aluminium sheet, evacuated of air, and lagged with insulating material 7 retained by the reinforcing rings 6. The chamber A may contain a nickel catalyst for hydrogenating oil. When regeneration is necessary, the oil flow is stopped and, after the usual cleaning, reduction is effected by passage of cooled dehydrated hydrogen through conduit E which, after being heated by heat exchange, enters the top of the chamber at 10. The spent gas leaves by conduit D<1> passing through heating coil D. A heating fluid, such as steam, oil or diphenyl oxide, is circulated through the conduit C for further heating the hydrogen to reaction temperature, for example 300‹ C., and then to inlet 4 of the jacket B, leaving by outlet 5 for return to the heater. A series of chambers may be connected in parallel to the heating fluid and hydrogen supply lines.
Patent GB-613620-A (GB)
Title: Improvements in the method of and means for withering tea leaves, also applicable for withering or drying the leaves and other parts of plants
IPC: F26B17/04
Filed: 1946-06-20
Abstract: 613,620. Drying tea leaf. SANTIAGO, M. C., and BREETVELT, E. June 20, 1946, No. 18584. [Class 34(ii)] [Also in Group XXX] The leaf is gradually and progressively more sparsely spread on stepped conveyers and delivered to one or more continuous conveyers, on which the drying is continued or completed. In one embodiment, leaf is delivered to the first of a number of conveyer brushes 7-12 by belt 1, the layer thickness being determined by a rotating brush 13, driven by a motor 5. Alternating angular movement is also imparted to brush 13 by sun and planet gearing, arranged at each end of a brush spindle 44, tending to sweep the leaf towards the belt centre. Brushes 7-12 have gradually increasing peripheral velocities, thus spreading the leaf more sparsely upon each successive brush until it is delivered to the first of a series of travelling net conveyer surfaces 17-26. Conveyers 17-21 travel successively at higher speeds thus diminishing the leaf depth until little overlap occurs. Final drying is effected on conveyers 22-26 driven at uniform speed by motor 29. Air pipes 14a, Fig. 1, and 76, Fig. 2, dry the brush bristles, further drying air being circulated through the net conveyers. Brushes 7-12 may be replaced by a number of stepped belts driven in the same direction at successively higher speeds from the top to the bottom.
Patent GB-498234-A (GB)
Title: Improvements relating to the de-sensitisation of light-sensitive silver halide emulsions
IPC: G03C5/32
Filed: 1937-07-05
Abstract: Anthraquinone-2-phenoxy-21-sulpho-41-carboxylic acid is prepared by condensing 2-chloranthraquinone and 4-hydroxybenzoic acid and sulphonating.  Anthraquinone-2-phenoxy-41-carboxylic acid 3-sulphonic acid is prepared by condensing 2-chloranthraquinone-3-sulphonic acid and 4-hydroxybenzoic acid.  The potassium salt of the 3-sulphonic acid of anthraquinone-(2)-diphenylene oxide sulphonic acid (31)-ether is prepared by reacting potassium - 2 - chloranthraquinone-3-sulphonate and 3-hydroxydiphenylene oxide in an autoclave in the presence of potassium carbonate and copper, and sulphonating.  The potassium salt of the 3-sulphonic acid of anthraquinone-(2)-carbazole-(21)-ether is prepared by condensing potassium 2-chloranthraquinone-3-sulphonate and 2-hydroxycarbazole in the presence of water at 150 DEG  C. under pressure.  The potassium salt of the 3-sulphonic acid of anthraquinone-(2)-benzthiazole - (21) - ether is prepared by reacting potassium 2-chloranthraquinone-3-sulphonate and 2-mercaptobenzthiazole in an autoclave in the presence of water and potassium carbonate. Specification 465,343 is referred to.
Patent GB-1219147-A (GB)
Title: A method of and an apparatus for chromatographically separating amino acid mixtures
Inventor: HRDINA JIRI
IPC: G01N30/46
Filed: 1968-04-19
Abstract: 1,219,147. Chromatographic separation of amino add mixtures. CESKOSLOVENSKA AKADEMIE VED. 19 April, 1968 [25 April, 1967], No. 18665/68. Heading B1X. Amino acid mixtures which include tyrosine and phenylalanine are eluted after separation on a chromatographic column, using initially as eluent for the acidic and neutral amino acids a 0.2N citrate buffer of pH 4.25 until valine has been eluted, and thereafter, to separate the tyrosine-phenylalanine pair, a 0.38N buffer of pH 5.28. To assist the separation of the threonine-serine pair, the column is preferably first stabilized with a citrate buffer containing a small proportion of an organic solvent, suitably a lower alcohol such as methanol or n-butanol. A suitable schematic arrangement in which the sequential steps of the separation may be performed is also described (see Fig. 2, not shown) the fractions being photometrically detected after reaction with ninhydrin in a capillary reactor.
Patent GB-679822-A (GB)
Title: Improvements in and relating to revolving-cylinder reciprocating hydraulic pumps
IPC: F04B49/12
Filed: 1948-07-13
Abstract: 679,822. Revolving-cylinder pumps. BOULTON PAUL AIRCRAFT, Ltd., and MILLARD, D. J. May 9, 1949 [July 13, 1948], No. 18767/48. Class 102 (i) In a revolving-cylinder pump in which the cylinder block 19 revolves about a distributer valve 23 and the pistons 21 contact a reaction ring 34 carried in a frame 37 pivoted on a pin 40, the frame is also connected by a pin 42 to a rod 41 loaded by an adjustable spring 43 in a direction to give maximum delivery. The delivery pressure is prevented from rising above a predetermined maximum by the reaction on the frame 37 compressing the spring 43 to reduce the stroke of the pistons. The end of the rod 41 extends into the chamber 46 and has bores 51, 52 and the bore 51 is fitted with a nozzle. The chamber is filled with oil and the rod 41 is immersed in oil in the casing so that the arrangement acts as a dashpot. The adjustable nuts 49, 50 limit the stroke of the rod 41. Specifications 679,821 and 679,823 are referred to.
Patent GB-422034-A (GB)
Title: Improvements in television
IPC: H04N5/74
Filed: 1934-06-26
Abstract: 422,034. Television. COSSOR, Ltd., A. C., Highbury Grove, London.-(Assignees of Ardenne, M. von; 19, Jungferstieg, Lichterfelde-Ost, Berlin) June 26, 1934, No. 18852. Convention date, July 12, 1933. [Class 40 (iii)] In a cathode-ray receiver in which the screen is to be viewed directly during the day-time and by optical projection at night, switches are provided for reversing the direction of movement of the scanning ray by reversing the polarity of the deflecting fields so as to invert the picture laterally and /or vertically when necessary. As a precaution against burning of the screen by a stationary ray, the switches may be coupled so as to act in sequence or may be of the snap-action type.
Patent GB-729765-A (GB)
Title: Means for blood grouping
IPC: G01N33/80
Filed: 1952-07-25
Abstract: Means for blood grouping consists of a sheet of material having on its surface a series of separate areas each of which carries a layer of test serum produced by drying a liquid containing up to 20 per cent. by volume of serum, the serum having been diluted with conglutinin or conglutinin substitute, other than serum or plasma; the sheet should keep flat when moistened and the surface should be smooth, chemically inert, wettable but not absorbent, and capable of being moistened evenly by serum and water.  The sheet may be made of strong paper, cardboard, steel, celluloid, thermoplastic or thermosetting plastics, or laminated material; the surface layer may consist of "Cellophane" (Registered Trade Mark), glued paper, gelatine, cellulose acetate, polyvinyl chloride, polymethyl acrylates, or gold; the surface layer should be attached by a water-resistant adhesive, or an intermediate layer of lacquer or metal foil should be provided.  Suitable conglutinin substitutes are solutions of partially hydrolized dextran, albumin, polyvinylpyrrolidene, gum arabic, gum acacia, or high molecular weight alcohols or sugars.  In making the solutions used for forming the dried layers, the test sera may be diluted with indifferent or weak sera so as to equalize the positive reactions, and then mixed in the same proportions with the conglutinin or conglutinin substitute. The solutions may also contain sodium chloride in 1-3 per cent. concentration, and coagulation-inhibiting substances such as sodium citrate, sodium oxalate, and heparine.  Separate areas of the sheet carry anti-A serum, anti-B serum, anti-Rh serum, and an indifferent serum for comparison.  In carrying out the test, water is added to each area of the sheet, followed by a drop of blood from the person tested; after mixing, the reactions are noted and the result recorded on the sheet.
Patent GB-1466940-A (GB)
Title: Combination of a connector and an adapter
IPC: H01R13/74
Filed: 1974-04-30
Abstract: 1466940 Two-part couplings BUNKER RAMO CORP 30 April 1974 [25 June 1973] 18948/74 Heading H2E In a combined adaptor 12 and connector 10 for flush-mounting in a panel 46 the adaptor comprises a flange 30 and an axial bore including a counterbore 36 in which the connector 10 is mounted such that a mounting flange 20 of the connector butts an abutment at the inner end of the counterbore, the connector comprising a mating portion 18 within the counterbore and terminating flush with or behind the flange 30, a rear portion 16 for connector to a conductor and means 22 on its outer surface for securing the connector to the inner surface of the adaptor. A coaxial-cable socket 10 is mounted in an opening 42 of a panel 44 by means of the adaptor 12 which comprises the flange 30 and a nut 48 and washer 47 clamping against the front and back faces of the panel, the tapered 38 counterbore 36 and the screw threaded axial bore 34 receiving the socket 10, the latter being locked in the adaptor by a nut 40. The adaptor is of metal to provide an earth path or of an insulating material, for example PTFE or an elastomer so that press-fitting together of the socket, adaptor and panel could be used instead of screw fitting. For a completely flush fitting the panel 44 is recessed to receive the flange 30; this would enable another panel 54 associated with a plug 50 to butt against the panel 44.
Patent GB-415245-A (GB)
Title: Improvements in cores for moulding hollow bodies of concrete and the like
IPC: B28B7/30
Filed: 1933-07-04
Abstract: 415,245. Moulds for hollow panels &c. LEGGAT, R., and LEEMHUIS, J. C. P., 449, Proes Street, Pretoria, South Africa. July 4, 1933, No. 18960. Convention date, July 28, 1932. [Class 87 (ii).] Hollow panels 2 with one or more cavities 3 are made in a mould comprising a base 4, and separable sides 5 and ends 6 clamped together by bolts 1. The cavities in the panel are produced by collapsable cores 7 each comprising two pairs of leaves 10, hinged at 12 and supported in apertures 8 in the mould sides, the leaves being opened by a pair of longitudinal bars 15, 15<a> coupled by links 18 and provided with screwed ends 19 which pass through apertures 20 in end plates 14; nuts 21 being mounted on the bolts 19 to effect longitudinal movement of the bars 15, 15<a>. The leaves are fitted with guide lugs 22 for the bars, and tapered projections 16, 17 are mounted on the inner sides of the end plates to effect an initial positioning and opening of the core members. The moulding is effected by filling the cored mould and strickling the open top. The cores are removed by collapsing, withdrawing the end plates and bars and passing one pair of collapsed leaves laterally between the opened ends of the other pair of leaves. Specification 412,682, [Group X], is referred to.
Patent GB-776106-A (GB)
Title: Improvements in or relating to combustion equipment for a turbo-jet engine
Inventor: BLOOMER WARD JAMES
IPC: F23R3/04
Filed: 1955-06-30
Abstract: 776,106. Generating combustion products under pressure. LUMMUS CO. June 30, 1955, No. 18998/55. Class 51 (1). A combustion chamber of a gas turbine jet-propulsion engine comprises an outer casing 26 and an inner flame tube 30, an air and fuel mixing device 28 being mounted on the upstream end of the flame tube. The cylindrical wall of the air and fuel mixing device is formed with two sets of tangential vanes 38 which impart vortical flow to air entering therebetween, and fuel is introduced into the vortical air now through nozzles 40 projecting through the closed end wall of the mixing device. The mixture of fuel and air discharges through the open end 28b of the mixing device into the combustion zone 30 where ignition is caused by a spark plug 46. A second set of tangential vanes 32 is disposed around the wall of the flame tube through which secondary air flows into the flame tube. The downstream end of the flame tube passes through the outer casing 26 and is formed with a throat 16b and a sector-shaped outlet 16a. The vanes 32 may be disposed so as to give vortical flow in the same direction as the vanes 38. Further air inlets are provided at 48 and 36. In a second embodiment Fig. 5, an annular flame tube 66, 68 is disposed within an annular air casing formed by walls 10, 60. An air and fuel mixing device 72 is disposed at the upstream end of the flame tube and comprises two sets of tangential vanes 70 in the outer wall thereof which impart vortical flow to air passing therebetween. Fuel is admitted through nozzles 74 projecting through the closed end wall of the mixing device and the vortical flow of air and fuel passes through the open end 74b of the mixing device into the annular flame tube. A second set of tangential vanes 80 is disposed around the outer wall of the flame tube and imparts vortical flow to secondary air flowing therethrough. A further set of tangential vanes 82 may be disposed around the outer wall of the flame tube downstream of the vanes 80, and the vanes 82 may be disposed so as to impart flow in a direction opposite to that imparted by the vanes 80.
Patent GB-670871-A (GB)
Title: Improvements in or relating to d.c. electrical measuring apparatus
IPC: G05B11/01
Filed: 1946-06-25
Abstract: 670,871. Electric indicating systems. GALL, D. C. June 25, 1947. [June 25, 1946] No. 19017/46. Class 40 (i). [Also in Group XL (b)] In a D.C. electrical measuring apparatus for physical magnitudes, comprising a multiplecoil measuring instrument, a current corresponding to a first physical magnitude is supplied to one of the instrument coils and a current is supplied to another such coil corresponding to another physical magnitude to be compounded therewith, D.C. amplifying means of high sensitivity and large amplification being connected between at least one of the coils and its source of variable current. Fig. 1 shows a Wheatstone bridge circuit 1, including a resistance thermometer 2, supplied from a battery 3 through the series connected coils 9 of cross coil measuring instruments 8, the other coils 7 of which are serially connected to the output 6 of an amplifier 5 energized from the galvanometer diagonal of the bridge, producing a deflection of the measuring instrument dependent on the temperature to be measured by thermometer 2. Fluctuations in battery potential which would otherwise cause fluctuations in the instrument readings are compensated for by corresponding current fluctuations in the winding 9. The instruments 8 may be dynamometer or integrating meters. In Fig. 2 (not shown), an anemometer varies the value of a resistance in series with a battery and with one coil of a dynamometer instrument, in accordance with wind velocity, the other dynamometer coil being supplied by an amplifier fed by a thermocouple measuring the ground temperature, so that the instrument indicates the product of wind velocity and ground temperature. In Fig. 3, photocells 20, 21 illuminated by different light sources are connected to amplifiers 5, 5a feeding coils 7, 9 of a cross coil instrument 8 which indicates the ratio of the light intensities of the two sources. The amplifiers are high sensitivity high gain D.C. amplifiers which may be of the kind described in Specification 537,784 or in Specification 585,419, [both in Group XL]. The invention is also applicable to the measurement of pressure, humidity, fluid flow, or other physical magnitudes, while the instrument coils may be fed from resistance strain gauges, microphones, or bolometers, and the instrument deflection may operate a pen recorder, fluid valves, electrical contactors, or like controlling devices. Batteries may be replaced by D.C. supply from a rectifier. The Provisional Specification describes also a device in which a constant resistance is connected in series with a battery, a variable resistance, a control coil of a cross coil instrument, and the input of an amplifier feeding the other coil of the instrument, which accurately indicates changes in the value of the variable resistance.
Patent GB-440647-A (GB)
Title: Improvements relating to vegetable and artificial cellulosic fibres
IPC: D06P5/22
Filed: 1934-06-29
Abstract: Vegetable and artificial cellulosic fibres are treated by incorporating therein an amine, quaternary ammonium base, or salt thereof, which contains a chain having at least eight carbon atoms, and causing formaldehyde to act on the fibres.  The formaldehyde may be added to the solution of the amine or the like employed or may be applied in a separate bath.  After impregnation, the fibres are dried at a temperature of 80--90 DEG  C. In the case of artificial fibres, the amine or the like may be incorporated in the solution from which the fibres are spun.  The spinning solution may contain also a protein and, if required, a fixing agent such as formaldehyde, an acid amide, cholic acid, or tannin.  The following examples are included: (1) Artificial silk or cotton is introduced into a bath containing stearylamine acetate and formaldehyde, centrifuged, and dried at 80--90 DEG  C; (2) The previous example is repeated, using isopropyl - dodecylamine lactate or N-dodecyl-1 : 3-propylene diamine formate in place of stearylamine acetate; (3) Artificial silk prepared from a viscose containing protein, is introduced into a bath comprising dimethyl-stearylamine and formaldehyde, centrifuged, and dried at 80--90 DEG  C.; (4) The previous example is repeated, using methyl-dibutyl-dodecyl-ammonium bromide or stearyl pyridinium chloride instead of dimethyl-stearylamine; (5) An emulsion comprising stearylamine acetate and formaldehyde is introduced into viscose, if desired together with a protein according to the process of Specification 438,199, and the viscose spun in the usual manner. Specifications 426,956 and 440,449 also are referred to.