baber/WOPTO huggingface dataset:
Patent GB-481130-A (GB)
Title: Conical drum drive for spool spinning machines for manufacturing artificial silk
IPC: D01H1/30
Filed: 1936-09-07
Abstract: 481,130. Cone drive for artificial silk spinning - machines. BARMER MASCHINENFABRIK AKT.-GES. Sept. 7, 1936, No. 24390. Convention date, Oct. 18, 1935. [Class 120 (ii)] In the cone drum mechanism of bobbin spinning-machines for artificial silk, a loose pulley 6 is mounted at the end of the driven cone 2 and a corresponding parallel portion 7 formed on the driving-cone, thereby dispensing with clutches. The pulley 6 may be the width of the belt, or, as shown, may be two widths, a loose pulley 8 being mounted adjacent the portion 7 of the driving - cone so that, when moved on to the pulley 8, the belt is at rest and may readily be inspected.
Patent GB-1271541-A (GB)
Title: Improvements in or relating to binary pulse rate multipliers
Inventor: HALSALL JAMES RICHARD
IPC: G06F7/68
Filed: 1968-05-22
Abstract: 1271541 Pulse rate multipliers using counters IMPERIAL CHEMICAL INDUSTRIES Ltd 13 May 1969 [22 May 1968] 24417/68 Headings G4D D6Y D6C1 D6C2 and D7X A binary pulse rate multiplier (divider) comprises a Gray code counter, the inputs to the bi-stables of which can be selectively gated to a common output line. In Fig. 3, alternate input pulses are routed to line Cl to increment the counter, selected gates G1, G2, G3, G4 being enabled to produce a required fraction of the pulse rate fat C1 on a common output line 01. The other input pulses are routed to line C2 to gates Al, A2, A3, A4 also controlled by the counter and selective enabling inputs to produce another fraction of f at output 02. A modification applies C2 instead of a gate in the output line 02. More than these two phases Cl, C2 may be provided, and different phase outputs O1 O2 ... may be combined together. A simpler embodiment has only a single phase, i.e. dispenses with F t , C2, A1, A2, A3, A4, 02. The NAND logic shown may be replaced by NOR or AND/OR/NOT logic. Application to calculators is mentioned.
Patent GB-287793-A (GB)
Title: Improvements in dirigible balloons
IPC: B64B1/62
Filed: 1927-09-17
Abstract: 287,793. Campau, L. M. Sept. 17, 1927. Airships; aerostats. -In an airship wherein the gas supply of the compartments is controlled without loss of any of the gas each collapsable gas compartment 19 communi. cates with a bellows 20 adapted to receive excess gas from the compartment when the pressure is sufficient to expand the bellows against the action of springs 22, the bellows being connected to a compressor 26 and a gas storage tank. The frame of the envelope consists of longitudinal, circumferential, and radial tubular members 14, 15, 16 respectively, which communicate with one another and form an additional gas storage chamber to which the compressor is also connected. The gas supply to and from the bellows, compressor, gas storage tank, and tubular frame is controlled by means of valves and pressure gauges in a system of main and branch pipes. The pressure in each bellows may be indicated by the movement of a cable secured to the movable leaf.
Patent GB-1515988-A (GB)
Title: Electrical resistance thermometers
IPC: G01K7/18
Filed: 1976-06-14
Abstract: 1515988 Resistance thermometers ROSEMOUNT ENG CO Ltd 22 March 1977 [14 June 1976] 24577/76 Heading H1K A resistance thermometer comprises an elongated element 10 of uniform cross-section and having a pair of connection points 12, 13 connected to leads 16-19 which extend along the element 10, the arrangement being enclosed and sealed within a ceramic housing 20. The element 10 may be of Pt wire wound on a former or a film on a substrate. The leads 16- 19 are U-shaped with the bases of the U, 14, 15 connected to the points 12, 13. The housing 20 has a bore 21 with grooves 22 to accommodate the leads. In another arrangement the limbs of the U-shaped leads lie along opposite broad faces of the element 10 (Fig. 3, not shown). A ceramic spacer (not shown) having a separate bore for each lead may be provided.
Patent GB-998874-A (GB)
Title: Improvements in or relating to silencers for exhaust gases
IPC: F01N1/06
Filed: 1961-07-07
Abstract: 998,874. Exhaust silencers. F. H. KUFFIN. July 2, 1962 [July 7, 1961], No. 24581/61. Heading F1B. An internal unit for an exhaust silencer comprises an inlet pipe 10 and open-ended intermediate and outlet pipes 12, 11, the end 18 of the inlet pipe being blocked and provided with slots or apertures 19 through which the gases flow to enter the adjacent end of the pipe 12. The unit is surrounded by an oval casing which forms expansion chambers 22, 23, 24, which casing may terminate before the end of pipe 11 or beyond the end thereof. More than one unit 10-12 may be inserted in a single casing or several casings each with a single unit therein may be connected in series. The pipes 12, 11, are provided with perforations 21, 20, so that some of the gases flow therethrough to enter pipe 11 at points intermediate its ends. The chamber may be packed with sound absorbing material.
Patent GB-452346-A (GB)
Title: Manufacture of mordant dyestuffs
IPC: C09B17/00
Filed: 1935-09-05
Abstract: Azine dyes.--Mordant dyes which are probably of the azine type are obtained by condensing, in presence of mineral acid and in an organic solvent or diluent, such as methyl or ethyl alcohol or glacial acetic acid, the nitroso compound of a secondary or tertiary aromatic amine with the products obtained according to Specification 437,798, by condensing an amino-salicylic acid with a naphthol-sulphonic acid, naphthylamine - sulphonic acid, or amino-naphthol-sulphonic acid. The aminosalicylic acid in excess of 1 molecular proportion, which is in loose combination with the naphthalene compound, is split off before or during the condensation with the nitroso compound. According to examples: (1) the condensation product from 2-oxynaphthalene-8-sulphonic acid and 2 mol. of p-aminosalicylic acid is condensed, in alcohol and in presence of hydrochloric acid, with nitroso-monoethyl-o-toluidine, and the product, is isolated as the free sulphonic acid; the nitroso compounds of dimethyl-, diethyl-, ethylbenzyl-, monomethyl-, and monoethylaniline and of diethyl-, monomethyl-, and monoethylm-toluidine, give similar products; (2) the condensation product from 2-naphthol-6 : 8-disulphonic acid and 3 mol. of p-aminosalicylic acid is similarly condensed with nitroso-monoethyl-o-toluidine; similar products are obtained from the condensation products of p-aminosalicylic acid with 2-naphthol-6 : 8-disulphonic acid and nitroso-dimethylaniline, 2-naphthol-6-sulphonic acid and nitroso - monoethyl - o - toluidine or nitroso-dimethylaniline, and with 2-naphthol-7-sulphonic acid and nitroso-monoethyl-o-toluidine, nitroso - dimethyl- or nitroso diethylaniline; (3) the condensation product from 2-amino-8-oxynaphthalene-6-sulphonic acid and 2 mols. p-aminosalicylic acid is condensed in alcohol with nitroso-dimethylaniline hydrochloride, and similar products are obtained with 2-amino-5-oxynaphthalene-7-sulphonic acid and nitroso - dimethyl- or nitroso - diethylaniline; (4) the loosely-combined molecule of p-amino-o-cresotinic acid is eliminated from the condensation product of 2 mols. thereof with 2-oxynaphthalene-8-sulphonic acid (1 mol.) and the product is condensed in alcohol and in presence of hydrochloric acid with nitrosomonoethyl-o-toluidine.  Other specified aminosalicylic acids are p-amino-m-cresotinic and o-aminosalicylic acids.  The products give blue-grey to bluish red shades in chrome-printing on cotton and may be sulphonated, thereby changing the shade towards red or yellow.
Patent GB-1091015-A (GB)
Title: Improvements in joints for artificial limbs
Inventor: BROWN PERCY
IPC: A61F2/64
Filed: 1963-06-21
Abstract: 1,091,015. Artificial limbs. J. E. HANGER & CO. Ltd. June 22, 1964 [June 21, 1963], No. 24807/63. Heading A5R. An artificial limb joint includes two interleaved sets of friction members 9, 10, of which one set is permanently stationary relative to one part of the limb and the members 10 of the other set frictionally engage the members 9 of the first set and move with them during bending or straightening of the joint until successively arrested by a stop fixed to the other part of the limb, whereafter the two sets move relatively to one another to produce a progressively increasing braking effect. The thigh portion 1 of an artificial leg is pivotal about a shaft 3 fixed relative to the shin portion 2. A set of friction discs 9 are keyed to a sleeve 14 which is keyed to a shaft 3. A set of metal vanes 10 are interleaved between the discs, the discs and vanes being pressed together by a spring-tensioned steel arm (13). Each vane 10 has two arms 10b, 10c, the arms of adjacent vanes being angularly disposed by a slightly different amount, e.g. 2‹, so that, when the vanes are arranged in the set with the arms extending from one side in alignment, the other arms of each vane form a fan-like arrangement. As the knee is bent, free pivotal movement is permitted until the joint approaches its maximum flexure, when the arms in the fan-like arrangement successively abut a stop 16 in the thigh portion. The rotation of these arms into alignment with one another, as they abut the stop, provides an increasing braking effect as the friction discs are successively brought into operation. The oppositely disposed arms of each vane are thus moved out of alignment into a fan-like arrangement and, as the knee is straightened, successively abut a second stop 15 in the thigh portion to provide an increased braking effect when the limb approaches the straight position. Alternatively, the same braking effect is obtained by making the vanes so that both sets of arms are in alignment and providing at least one stop with a sloping face which arrests the arms successively as the limb approaches its limits of angular movement.
Patent GB-443299-A (GB)
Title: Improvements in or relating to splash-guards for vehicles
IPC: B62D25/18
Filed: 1934-08-29
Abstract: 443,299. Splash and like guards for vehicle wheels. KEITH, D., 122, Woodward Road, and MEARNS, H., 26, Byrne Avenue, both in Rock Ferry, Birkenhead. Aug. 29, 1934, No. 24860. [Class 136 (i)] [See also Group XXXII] In a splash-guard for vehicles, adapted also for use as a lifeguard or obstructionremover, the guard proper is hingedly suspended from a carrier or link member, hinged to a fixed support or holder for upward and outward movement, the guard being displaced longitudinally on meeting an obstruction parallel or oblique to its face, whereby the hinged carrier or link member is caused, as by a cam track, to swing outwards and upwards and thereby draw the suspended guard upwards, so as to prevent its being caught against the kerb. An upper hanger 3 is pivotally suspended at 4 from an arm 1, and is formed with a series of teeth 5 for the suspension at any required height of a lower hanger 7, 6, to which are secured holders 8 provided with arcuate slots 10 to receive rollers 12 supporting a carrier or link member 14, from which the splash-guard 9 is pivotally suspended. Balls or rollers 17 carried by cups on the carrier 14 engage cam tracks 18 on the holders 8, these cam tracks being crescent-shaped in the longitudinal direction, so that if the guard 9 is displaced rearwardly by running against the kerb &c., and the carrier 14 thus caused to run back in the slots 10, the cam tracks 18 cause the carrier 14 to swing outwards and upwards, as indicated in chain lines in Fig. 2, thereby lifting the guard 9 clear of the kerb &c. The upper hanger 3 is normally maintained in a vertical position by a locking-bar 19, the lower end of which passes through an eye 20 and is retained by a detachable pin 21, the upper end being loosely engaged in an aperture in the end of the arm 1. On removing the pin 21, the locking-bar 19 may be raised and swung clear, to permit the hanger 3 and guard 9 to be swung outwards to give access to the wheel. When the guard is applied to a steering wheel, the arm 1 is hinged to a fixed bracket 24, so that the hangers and guard may turn with the wheel under the action of rollers 26 engaging the wheel tyre. When the guard is used as a life-guard or obstructionremover, (e.g. at the sides of the vehicle or obliquely arranged in front), the guard 9 is fixed to the carrier 14, so that on longitudinal displacement of the guard its lower end is caused to swing outwards to throw the obstruction clear of the vehicle.
Patent GB-1003480-A (GB)
Title: The preparation of esters of 2-chloro-6-lower alkyl-isonicotinic acids
Inventor: CUIBAN FLORIAN
IPC: C07D213/79
Filed: 1963-06-22
Abstract: Compounds of the general formula <FORM:1003480/C2/1> wherein R and R1 represent alkyl groups containing not more than four carbon atoms, are prepared by chlorinating compounds of the general formula <FORM:1003480/C2/2> wherein R1 is as defined above, with either phosphorus oxychloride alone or a mixture of phosphorus oxychloride, phosphorus trichloride and sufficient chlorine to ensure the substantial conversion of the phosphorus trichloride to phosphorus pentachloride, and thereafter esterifying the chlorinated intermediate so formed, in the presence of at least part of the chlorination reagents, with an alcohol of formula R-OH, where R is as defined above. The esterification reaction is promoted by the presence of dichlorophosphoric acid and tetrachlorophosphoric acid formed during the chlorination reaction.  Examples are given.
Patent GB-1151735-A (GB)
Title: Device for Exciting or Recovering Surface Waves
IPC: H03H9/145
Filed: 1966-06-03
Abstract: 1151735 Sonic couplings CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL 3 June 1966 [16 June 1965] 24952/66 Headings H3U U22 U25 and U32  A coupling device for exciting or recovering surface waves (e.g. Lore waves) in an acoustic structure 3 having a flat top comprises a body 2 of energy dissipating material laterally outlined by a concave wall AB and another wall having two convex portions CD and EO and an intermediate plane face DE. The shapes of the concave wall AB and of the portions CD and EO are generated by the motion of first and second conic sections having identical primary and secondary foci. (Where, as illustrated, each conic section is a parabola one focus is at F and the other at infinity on axis O-y, Fig.1, not shown). The body 2 has a further plane face BC extending between the concave wall AB and one convex portion CD. One of the foci lies on the continuation of the reflection path corresponding to an incident path perpendicular to one of the faces. As described, the curved faces are parabolic cylinders and have focal lines. The planes DE and BC form an angle # whose sine equals the ratio of the phase velocities of the acoustic waves propagated within the body and travelling along the top of the acoustic structure 3. An electro-acoustic transducer is mounted on the face BC. When used as an exciter, surface waves are propagated tangentially along the surface DE but a fraction of the energy is reflected and undergoes multiple reflections. This energy cannot reach the input or output faces of the device 2 and is dissipated as heat. The acoustic structure 3 is a dispersive line formed by a sheet on a base 4. Two coupling devices 2 each with a transducer 1 are provided, one at each end of the dispersive line. One transducer 1 acts as an output and the other as an input. In a modification, Fig.3 (not shown), the transducer (1) is coupled to the plane face (DE) and a flat face (BC) is coupled to the acoustic structure (3). The curved faces may alternatively be generated by ellipses or other conic sections having the same two foci.
Patent GB-1016765-A (GB)
Title: Improvements in or relating to radar systems
IPC: H01Q25/00
Filed: 1962-06-28
Abstract: 1,016,765. Aerials; pulse radar. GENERAL ELECTRIC CO. Ltd., R. L. HUGHES, and R. H. KIRKNESS. Sept. 30, 1963 [June 28, 1962], No. 24956/62. Headings H4A and H4D. In a radar the transmitting aerial affords a single-lobe radiation pattern 15, Fig. 2, and the receiving aerial provides a radiation pattern having a plurality of major lobes 16, or vice versa. An effective narrow azimuth pattern of the radar thereby ensues. In an embodiment of an airborne pulse radar for ground mapping the scanning by transmitting aerial 1, Fig. 1, is synchronized with phase-shifters 11 in the paths from elements 7 of receiving aerial 8 which comprises a collinear array of dipoles or resonant slots, the spacing between elements being several wavelengths at the operating frequency. Elements 7 are rigidly mounted along the leading edge of a wing. The phaseshifters may each be of known type utilizing ferromagnetic ceramic material in a waveguide and a solenoid. To reduce minor lobes in the receiving aerial the coupling between elements and associated feeder may follow a binomial law. In the application of the invention to a ground surveillance radar the receiving aerial is triplicated to afford 360 degrees coverage, Fig. 3 (not shown).
Patent GB-1198169-A (GB)
Title: Improvements in Explosive Compositions
Inventor: MCFERRIN WILLIAM DON
IPC: C06B31/28
Filed: 1968-05-24
Abstract: 1,198,169. Explosive compositions. W. D. McFERRIN. 24 May, 1968, No. 25000/68. Heading C1D. In a granular or particulate explosive composition containing ammonium nitrate, 5 to 8% of a metal activator, about 4% of a nitrobody modifying agent, and about 1% of a combustible carbonaceous material, the ammonium nitrate grain size is such that about 78% passes a 150 mesh Tyler screen and the balance passes a 100 mesh screen but is retained on a 150 mesh screen. A composition of a desired explosive equivalent (defined as a percentage of the strength of blasting gelatine) within the range 40% to 90% is prepared by adjusting the percentage of ammonium nitrate in the composition. which percentage is numerically substantially equal to the explosive equivalent. The metal activator is preferably Al powder, but powdered Zn or Mg may also be used. A suitable nitro-body is dinitrotoluene, and suitable carbonaceous materials are granulated cork and wood meal. Other constituents may be sodium or potassium nitrate, expanded shale or perlite, or vermiculite. The specific gravity of the composition may be increased by adding a small amount of barite, garnet, ferrosilicon, or magnetite.,
Patent GB-775062-A (GB)
Title: Filter for fluids
Inventor: TURSKY CHARLES M
IPC: B01D37/04
Filed: 1955-08-31
Abstract: 775,062. Filtering liquids. RESOURCES & FACILITIES CORPORATION. Aug. 31, 1955, No. 25008/55. Class 46. [Also in Group XXVIII] A filter comprises a housing enclosing a filte: element formed as a helical or tapered helica coil of contacting poly gonal convolutions in staggered relationship to provide filtering aperture between adjacent con volutions, an inlet or outlet port for fluid com municating with the in terior of the filter element an outlet or inlet por respectively for fluid corn municating through the housing with the exterio of the filter element, and sump chamber for accumulated residue, in communication with the inlet port and separated from the outlet port by the filter element. A number of coils 18 in closely packed arrangement to give lateral support are sandwiched, preferably resiliently, between end plates 12, 13 having ports 21, 22 giving access to the interiors of the coils which may be retained by lips 19, 20 about the ports or by having their ends embedded in the plates. Adjacent coils may be wound in opposite senses. A housing 11 surrounds the coils and provides a preferably resilient mounting for the upper plate 12. End caps 14, 15 on the housing provide an inlet chamber 16 and a sump 17 respectively. Filtered liquid leaves by a port 24 in the housing 11 and separated particles gravitate to the sump to be drained off when a tap 25 is opened. The ports 21 in the top plate 12 may be formed in plugs rotatable in the plate to vary the size of the filtering apertures by turning the plugs to apply torsion to the coils. Wire of circular or square cross section may be used for the coils,
Patent GB-504178-A (GB)
Title: Process for the manufacture of beryllium fluoride
IPC: C01F3/00
Filed: 1937-09-16
Abstract: 504,178. Beryllium compounds. SERI HOLDING SOC. ANON. Sept. 16, 1937, Nos. 25209 and 34141. Convention dates, Oct. 28, 1936 and Oct, 26, 1936. [Class 1 (iii)] Beryllium fluoride is extracted from the product of opening up a beryllium ore wich a fluorine compound such as an acid fluoride or fluosilicate by means of a solution of silicon tetrafluoride in an organic solvent miscible with water, extraction being effected in the presence of water in quantities which may vary from traces up to 50 per cent of the mixture with the organic solvent. The latter may be an alcohol such as ethyl or methyl alcohol, or another organic compound such as acetone which does not dissolve alkalies, metal oxides, silica or fluosilicates. Silicon fluoride for use in the process may be obtained by treating the opened-up ore with a strong acid before or after the extraction of beryllium fluoride, and it may be either introduced into the aqueous organic solvent or be introduced into the wetted ore with subsequent addition of the organic solvent. The beryllium fluoride extract, after purification as by means of air and filtration, and distillation of the organic solvent, may be treated with ammonia to precipitate a part of the beryllium as hydroxide and give a solution of ammonitun beryllium fluoride, which may be evaporated and decomposed by heat to yield anhydrous beryllium fluoride. Alternatively, the purified extract may be evaporated and heated to 450- 600‹ C. in an atmosphere of hydrofluoric acid to obtain the anhydrous fluoride, which may be cooled in an atmosphere of inert gas such as carbon dioxide. Examples of operation are given, and Specifications 389,053 and 423,543 are referred to.
Patent GB-152859-A (GB)
Title: Adjustable tension spring in connection with phonopore, superimposed, or buzzer telephones
IPC: H03B11/06
Filed: 1919-10-15
Abstract: 152,859. Harrison, A. Oct. 15, 1919. Electro-magnetic interrupters.-The contact of a phonopore or superimposed or buzzer telephone or the like is adjusted from outside the apparatus by the use of an auxiliary bow spring j attached to the make-and-break spring k, this spring being connected to the adjusting screw c and supported by the part a carrying the horseshoe electro-magnet d. The screw c and contact screw b pass through split bracket portions of the base a and in this way can be fixed in position after adjustment. The spring k is secured by a screw g to a projection on the base, insulating fibre washers f being fitted above and below. A brass washer h between the spring k and the lower washer f is connected bv a wire to the former-wound coils e. According to the Provisional Specification, the adjustment is effected by a nut travelling on a fixed screw.