baber/WOPTO huggingface dataset:
Patent GB-1151394-A (GB)
Title: Pyridoxal Derivatives and preparation thereof
IPC: C07D213/66
Filed: 1967-06-29
Abstract: 1,151,394. Pyridoxal derivatives. FUJISAWA PHARMACEUTICAL CO. Ltd. 29 June, 1967 [29 June, 1966; 2 July, 1966; 8 July, 1966; 11 July, 1966; 30 Sept., 1966; 3 Oct., 1966], No. 30156/67. Heading C2V. The invention comprises pyridoxal derivatives of formula where R<SP>1</SP> is an alkyl group which may be substituted by carboxy, alkoxy, alkylthio, alkoxycarbonyl, aryl, carbamoyl or a heterocyclic group, or R<SP>1</SP> may be an aryl group which may be substituted by a halogen, carboxy, alkyl, alkoxy, alkylthio, alkoxycarbonyl or carbamoyl, R<SP>2</SP> is an acyl group and R<SP>3</SP> is a hydrogen atom or an acyl or phosphono group, or R<SP>2</SP> may be a hydrogen atom when R<SP>3</SP> is a hydrogen atom and R<SP>1</SP> is an alkyl group substituted by carboxy, alkoxy, alkylthio, alkoxycarbonyl or a heterocyclic group, or R<SP>1</SP> is aryl substituted with carboxy, alkylthio, alkoxycarbonyl or carbamoyl. The compounds of Formula (I) may be prepared by reacting pyridoxal with an amine R<SP>1</SP>-NH 2  to obtain a 4- formimidoyl - 5 - hydroxy - 3 - pyridinemethanol derivative of formula and then reacting this compound (III) with an acylating agent. Alternatively pyridoxal may be reacted with an acylating agent to obtain 1,7 - diacyloxy - 1,3 - dihydrofuro - [3,4-c]- pyridine derivative of formula hydrolysing the compound (IV) to obtain a 1 - acyloxy - 7 - hydroxy - 1,3 - dihydrofuro- [3,4-c]-pyridine derivative of formula and then reacting the compound (V) with an amine R<SP>1</SP>-NH 2  to obtain the 4-formimidoyl- 5 - acyloxy - 3 - pyridinemethanol derivative of Formula (I) above. Examples are given.
Patent GB-358283-A (GB)
Title: An improvement in or relating to rising-and-falling shuttle box and like motions for looms for weaving
IPC: D03D47/24
Filed: 1930-10-09
Abstract: 358,283. Drop-box looms ; shuttleless looms. GLEDHILL WEAVING MACHINE CO., Ltd., Station Street Buildings, Huddersfield, and GLEDHILL, W., Wellhouse, Holmfirth, near Huddersfield. Oct. 9, 1930, No. 30208. [Classes 142 (ii) and 142 (iii).] In looms having a rising-and-falling shuttle box or equivalent motion, surfaces on the box rod co-operate with a vertically-fixed positioning member whereby any irregularity in positioning of the box by the ordinary box-actuating mechansim is corrected. The invention is described with reference to a loom having stationary weft supplies as described in Specification 289,570, [Class 142 (ii), Looms, Kinds &c.], in which a " shuttle " box b having compartments b<1> each adapted to receive a weft carrier c is movable to bring a selected compartment opposite the raceway a, such movement detaching one gripper or weft carrier c from and attaching the selected gripper to a carrier bar d in line with the raceway. The invention is also applicable to ordinary shuttle looms. As shown, the box rod e has a telescoping portion e<1> connected by a give-way device i, j and is provided with a series of rollers f. After the movement of the ordinary box-operating mechanism has ceased, the further motion of the lay causes the tapered end g2 of a fixed member g to enter between a pair of rollers to correct the positioning of the box-rod. The member g is fixed vertically but is pivoted for horizontal movement about an axis g<1> and is curved to allow for the arcuate motion of the lay. The other end of the member moves in a slot and is connected at h to the handle controlling the disconnecting means between the dobby or head motion, the motion for giving vertical movements to the box-rod e, and the rest of the loom drive. When the handle is operated, the member g is moved clear of the rollers so that the box can be raised or lowered to correct irregularities &c. When the handle is turned into the operative position, a tapered part g<4> enables the member g to enter between a pair of rollers in case of inaccurate positioning of the box-rod.
Patent GB-296227-A (GB)
Title: Improvements in or relating to portable weight determining apparatus for road vehicles
IPC: G01G19/02
Filed: 1927-11-10
Abstract: 296,227. Troll, F. J. Nov. 10, 1927. Vehicles, ascertaining weight on wheels of; hydrostatic apparatus.- In a hydrostatic weighing apparatus of the manually portable type for determining the loads on the wheels of vehicles, the base housing is countersunk between the usual end ramps 11 to receive and guide the platform 2, to receive the usual triangular levers 3, 4 and to form the pressure chamber 6 closed by a diaphragm 5. The levers are provided with hardened rollers 24, 30 in lieu of knife-edges. The apparatus may be relieved by the rotation of eccentrics 46 that are adapted to engage beneath the ends 26 of the platform. The ends of the platform and the holes in the levers that receive the guide-bolts 35 are faced with rubber to take up clearance and exclude grit, &c. The apparatus is sealed by adjustment of the bolts 35, the heads of which are seated in recesses 39 in the platform that are closed by discs 42. The diaphragm comprises a circular sheet 16 of bronze or other metal stiffened by upper and lower plates 17. The pressure chamber is connected to a gauge 7 through a valve 50 that may be closed by a screw 60. The chamber is filled with oil or other liquid through the gauge opening 64 and is provided with an air vent 67 normally closed by a screw 69.
Patent GB-980186-A (GB)
Title: Voltage regulator circuit
IPC: G05F1/22
Filed: 1961-08-22
Abstract: 980,186. Automatic voltage regulators. BORG-WARNER CORPORATION. Aug. 22, 1961 [Aug. 29, 1960] No. 30282/61. Heading G3R. An alternating output voltage is regulated by a magnetic amplifier which is responsive to changes in the output voltage and which controls the conduction of two controlled rectifiers which, in turn, control the current flow through an inductor thereby placing more or less conductance . across the voltage source. As shown, the regulator circuit 10 includes a transformer T connected to an A.C. power source, a magnetic amplifier M responsive to voltage changes as detected by a rectifier bridge RB connected to the amplifier M over a coupling bridge B2, a power bridge PB connected over a coupling bridge B1, to the magnetic amplifier M which controls the conduction of a controlled rectifier included in the bridge PB, a linear reactor LR which is controlled by the transformer T and the current through which is controlled by the power bridge PB,and a D .C .bias circuit D for the magnetic amplifier M. Suitable circuit arrangements for the various elements of the regulator circuit are described with reference to Figs. 2, 5, 6 and 7 (not shown). In operation, the circuit 10 functions to regulate the output voltage from the A.C. power source, which may be a static inverter supplying a capacitive load, by placing more or less inductance across the A.C. power terminals so that the A.C. output is effectively tuned by a variable inductor constituted by the linear reactor LR, the switched current through which is controlled in dependence upon output voltage variations. In a modification, (Figs. 8 and 9, not shown) the output voltage of a permanent magnet alternator is regulated by substituting a back-winding for the linear reactor LR, the arrangement being such that the current through the back winding, which controls the flux in the stator of the alternator and hence the output voltage, is itself controlled by the power bridge PB.
Patent GB-432872-A (GB)
Title: A new or improved process for the manufacture of carburettors
IPC: F02M19/01
Filed: 1933-11-01
Abstract: 432,872. Spray carburetters. NEESEN, A., 40a, Cecilienstrasse, Zehlendorf- Mitte, Berlin. Nov. 1, 1933, No. 30385. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 25, 1934]. Application for addition to 428,843. [Class 7 (iii)] The parent Specification describes a method of testing and adjusting carburetters in which the vacuum adjacent the fuel discharge orifice is measured at various engine speeds and the quantity of fuel delivered determined and compared with that quantity known to be necessary to give a desired fuel-air ratio. According to this invention, the vacuum is measured under conditions produced by mechanical means, such as a bellows or pump, without running the engine. If the values obtained fluctuate, eddies are present and the carburetter is adjusted until the fluctuations disappear. The vacuum is measured by a separate nozzle adjacent the fuel nozzle, and the fuel is recovered from the mixture after its physical-chemical characteristics have been investigated. The Specification states that the method of testing and adjusting is applicable to injector nozzles.
Patent GB-871336-A (GB)
Title: Improved method of handling radioactive material
IPC: C04B40/00
Filed: 1957-09-27
Abstract: A cleansing agent containing a radiation-absorbent material having a specific gravity of at least 4 is used for cleaning and scrubbing vessels which are soiled with radioactive residues. The heavy material is preferably barite, but other substances referred to are magnetite, iron dust, lead dust, galena, cinnabar, bismuth subnitrate, and pulverized slags containing heavy metal oxides.  The usual mechanically or chemically active agents may be mixed with the heavy material.ALSO:Finely divided or dissolved radioactive material is mixed with a finely divided radiation-absorbent material having a specific gravity of at least 4 in order that the radioactive material may be handled, stored, transported, or disposed of more easily and with less danger.  The preferred radiation-absorbent material is dried barite sediment or sludge containing 80-90% BaSO4. Other materials referred to are heavy spar, magnetite, iron dust, lead dust, galena, cinnabar, bismuth subnitrate and pulverised slags containing heavy metal oxides.  Radioactive sewage or waste water from atomic reactors may be absorbed by the barite which can be re-used after storage to allow the short-lived radiation to disappear.  If the barite used is mixed with cement, solid blocks are formed which may be sunk in the sea.  Liquid containing radioactive material in suspension or solution may be decontaminated by passing through the heavy material alone or mixed with filtering or ion-exchange material, e.g. asbestos, montmorillonite, fullers earth, or synthetic resins.  Barite mixed with peat may be used in hospitals to absorb radioactively contaminated faeces.
Patent GB-558980-A (GB)
Title: Improvements in invalids' bedsteads
IPC: A61G7/015
Filed: 1939-11-20
Abstract: 558,980. Invalids' beds. AKTIEBOLAGET SANGFABRIKEN, and ERICSSON, T. L. Nov. 20, 1939, No. 30397. [Class 52 (ii)] In an invalid bedstead the foot end la, Fig. 1, is adjustable in inclination about a pivot 6 by adjusting the U-shaped arms of a lever 7, 10 in relation to a rack 16, the adjustment being effected by gripping simultaneously a cross bar 14 on the foot portion la and an adjacent cross bar 12 operatively connected to the lever 7, 10. The maximum inclination of the foot portion is shown by dot-and-dash lines. The head portion 2 may be adjusted in inclination in known manner by a strut 3. In a modification, Fig. 6, the inclination of the middle portion 1b may also be adjusted about the same pivot 6a as the head portion 2. The middle portion is tilted by means of a link 20 and additional frame 18 manipulated by a cross bar situated adjacent to a cross bar 12a connected to the rack-engaging lever 7, 10. The foot portion 1c may be adjusted angularly in relation to the middle portion 1b by means of a strut pivoted on the frame 18 and engaging a rack 24.
Patent GB-607307-A (GB)
Title: Improvements relating to domestic water heaters
IPC: F24H1/20
Filed: 1945-11-14
Abstract: 607,307. Hot-water boilers. GENERAL INVENTIONS, Ltd., and FOWLER, C. R. Nov. 14, 1945, No. 30410. [Class 64(i)] A domestic water heater comprises an outer container, e.g. a copper cylinder 1, surrounding an annular water chamber which is bounded on the inside by an inner pipe-like duct 4, and a dependent flange 20 constructed so that a domestic oil stove can be freely suspended from it below the duct. The inturned upper ends of the legs of a pressure oil stove may engage either in slots 21 in the flange 20 as shown or in clips. The duct 4 is made of refractory material, e.g. asbestos cement. A metal sleeve 22 spaced from the duct 4 by lugs 22<1> protects the lower part of the duct from the burner flame, and a vertical plate may be suspended from the bottom of the heater to protect the wall on which the heater is supported. The annular bottom 6 of the water chamber is sealed against the duct 4 by a rubber ring 7 compressed between two rings 8, 9 the lower of which supports the duct. The water supply passses upwardly through a pipe 32, which has a water-restricting screw 30 at its lower end, to holes 33 surrounded by the sleeve of a cap 34, and falls through a pipe 36 into the water chamber. An outlet pipe 38 is connected to the lower end of the pipe 37.
Patent GB-315162-A (GB)
Title: Improvements relating to the injection and vaporization of the fuel in oil engines
IPC: F02B21/00
Filed: 1928-10-22
Abstract: 315,162. Lang, F., and Aero Akt.-Ges. Oct. 22, 1928. Cylinders receiving liquid fuel.-In cylinders in which a vaporizing chamber f is connected to the cylinder by a restricted orifice g arranged diametrically opposite the fuel nozzle d, the main combustion chamber is restricted to an axial dished portion k and two connecting passages m, e, which may be formed in either the piston or the cylinder head. Fuel injection commences when the piston has completed 95 per cent of its stroke.
Patent GB-868649-A (GB)
Title: Method of increasing recovery of oil
Inventor: CRUMP JAMES SILAS
IPC: E21B43/16
Filed: 1957-09-30
Abstract: 868,649. Wells. JERSEY PRODUCTION RESEARCH CO. Sept. 30, 1957, No. 30507/57. Class 85. Petroleum fluid is recovered from an underground reservoir 1 having a production well 3 and an injection well 2 by injecting through the well 2 a mixture of methane and hydro-carbons of the paraffin series having more than one but not more than six carbon atoms per molecule, the composition of the mixture being determined experimentally. Part of the mixture may be natural gas from the reservoir. Petroleum fluid from the well 3 is separated in a separator 5, the gas from the separator being pumped by a compressor 7 into the well 7. The gas is joined by other gas from a source 8. After establishing a zone of enriched petroleum fluid adjacent the well 2, the supply of the mixture may be replaced by a supply of gas such as methane, nitrogen or air.
Patent GB-808476-A (GB)
Title: Method of making pleated air filter cartridges
IPC: B01D46/24
Filed: 1957-09-30
Abstract: 808,476. Moulding caps on tube ends. FRAM CORPORATION. Sept. 30, 1957 [May 22, 1957], No. 30527/57. Class 87(2). [Also in Group XXVIII] Moulded annular end caps 14, 15 only one of which is shown of plastic material in which are embedded the ends of a tubular filter element 12 having longitudinally extending pleats and also the ends of inner and outer supporting screens 11, 13 are formed by providing at the bottom of a mould pan 17 a rib 19 and spaced lugs 18, 20 (not shown) on which rest the adjacent ends of the pleated tube and the supporting screens which are thereby spaced from the bottom of the pan, and the plastic is thus allowed to almost completely embed said ends. The tubular element may be of oval cross section in which case extra ribs spaced round the mould pan serve to assist locating the outer supporting screen. Specification 751,655 [Group XXVIII] is referred to.
Patent GB-859646-A (GB)
Title: Improvements in and relating to fibre sheets
Inventor: JACKSON JOHN WILLOUGHBY
IPC: D21F9/02
Filed: 1958-09-24
Abstract: 859,646. Fibre sheet materials. JACKSONS' MILLBOARD & FIBRE CO. Ltd. Sept. 23, 1959 [Sept. 24, 1958], No. 30536/58. Class 96. To produce sheet material from fibre pulp as a continuous process, a number of layers of fibre having particular characteristics are wound on to a " making " or mandrel roll after which a further number of layers of fibre having different characteristics are wound thereover to form a compact sheet without the need of any intervening adhesive. In the form shown chests a, b contain different pulp supplies which are fed through coupled alternatelyoperated valves c, d to mixing chambers m, n to be diluted with water from a tank k and fed to separate breastboxes p, q over breastboards r, s on to a Fourdrinier wire j. The fibre layer is picked up by a couch roll u and passes along a felt conveyer belt v, running over rollers w to the making roll x. In another form the making roll is fed directly from the wire j. In another, the chests a, b feed a common mixing box which supplies a single breastbox. The sheet may be built up from more than two different kinds of layers.
Patent GB-145353-A (GB)
Title: Improvements in or in connection with button holes for garments and other articles
IPC: A41F1/02
Filed: 1919-12-06
Abstract: 145,353. Farmer, C. H. C. Dec. 6, 1919. Buttonholes. -A detachable buttonhole reinforcement comprises a single ply of fabric, celluloid, or other material a sufficiently large to bridge over a frayed button-hole. Reference has been directed by the Comptroller to Specifications 22879/05, 23191/09, and 24382/09.
Patent GB-1534118-A (GB)
Title: Closing member for a ring valve
IPC: F04B39/10
Filed: 1977-07-21
Abstract: 1534118 Valves ENFO GRUNDLAGEN FORSCHUNGS AG 21 July 1977 30706/77 Heading F2V An air compressor valve reed 1 has two part circular mounting arms 2 and a plurality of flexible ring portions 4 extending over a total angle less than 360 degrees and joined by radial webs 5 to each other and to the arms 2. By this construction the advantages of reed valves are obtained in ring form. Mounting points 3 may be located where apertures are provided to receive centering pins. Two reeds may be used for suction and discharge to either side of a diametral strip between valve disc members (7, 8), Fig. 4, not shown.
Patent GB-675645-A (GB)
Title: Improvements in and relating to magnetic fluid clutches
IPC: F16D37/02
Filed: 1950-12-18
Abstract: 675,645. Reverse-gear; electromagnetic fluid clutches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 18, 1950 [Dec. 30, 1949], No. 30780/50. Class 80 (ii). A disc 16, fast on an output shaft 17, is ar.. ranged between a pair of electromagnets, one, 7, fast on an input shaft 3, the other 14 continuously and oppositely driven therefrom through a cylindrical housing 9 fast to-the forward magnet 7 and having an internally-toothed, wheel 10, meshing through reyersing-idlers 11 a central wheel 12 fast to the magnet 14, and the space between the magnets is filled with a magnetic liquid 36 such as ferrous material suspended in oil, which, by energising one or other magnet through slip-rings 23, 29, becomes solidified only on that side of the driven disc 16 adjacent to the energised magnet so as to drive the disc 16 frictionally, with variable slip, in the same direction. as that of the energised magnet. Both magnets may be energised simultaneously so that the output slip-torque and direction is a function of the, difference in the energising currents.
Patent GB-1072245-A (GB)
Title: Improvements relating to microporous plastic materials
IPC: C08J9/26
Filed: 1964-08-04
Abstract: A method of making a microporous plastic material comprises forming a substantially single phase mixture by intimately mixing a plastic material, the working material, with a plasticizer, shaping the mixture, removing at least a portion of the plasticizer by treating the mixture with a leaching agent, in which the plasticizer is at least partially soluble and the working material is substantially insoluble, thus forming a microporous body.  Heat may be necessary to form the substantially single phase mixture.  Working materials specified are polymers and copolymers of vinyl acetate, vinyl butyrate, styrene, vinyl chloride and methyl methacrylate; and cellulose acetate, cellulose acetate butyrate, cellulose nitrate and ethyl cellulose. Plasticizers specified are compounds containing at least one ethylene oxide group per molecule; a condensation product of ethylene oxide; a compound containing at least one ether group per molecule; a compound containing at least one ester group per molecule; a carboxylic acid ester, an ester of a dicarboxylic acid containing at least one ethylene oxide group.  The leaching agent is water.  A permanent plasticizer such as dioctyl phthalate, dioctyl azelate and diotyl sebacate may be included in the single phase mixture.  In an example, P.V.C. is dissolved in bis(2-(2-methoxyethoxy)ethyl) adipate and, after shaping, treated with water.
Patent GB-1411898-A (GB)
Title: Tank e'ecting method
IPC: E04H7/06
Filed: 1973-06-28
Abstract: 1411898 Method of erecting tanks ISHIKAWAJIMA-HARIMA JUKOGYO KK 28 June 1973 [28 June 1972 25 July 1972 8 Dec 1972 17 Jan 1973] 30844/73 Heading E1T In a method of erecting a tank in which a portion of the side wall is erected at base level, elevated and has a lower portion of the said side wall connected thereto, the elevation is effected by gas under pressure. The tank is erected on a foundation I having a suitable bottom (2) upon which a ring of sealing side plates 3 is formed. A first-ring of sides plates 5a carrying a permanent roof (4) is then assembled about the plates 3 which is provided with rubber sealing members 7. The unit (4), 5a is then elevated by gas under pressure fed by a blower 11 and is restrained by wire ropes 9 connected to winches 10; a lower ring of side plates 5b then being welded to the plates 5a. For numerous modifications involving a temporary roof with or without drainage facilities; a balancing device to hold the floating part of the tank in position; a location post to retain the uppermost part of the floating tank in position and a modified method of erecting a tank of double-walled construction, the Specification and remaining drawings, (not shown), should be referred to.
Patent GB-1514998-A (GB)
Title: Surface elastic wave filter
IPC: H03H9/64
Filed: 1975-07-23
Abstract: 1514998 Surface wave filters THOMSON-CSF 23 July 1975 [24 July 1974] 30885/75 Heading H3U The fingers of an interdigital transducer of a surface wave filter are arranged to be asymmetrical about a central axis y-y of the transducer but to have a centre of symmetry M on the axis y-y. Most or all of the non-central radiating elements are arranged to be off the central axis of propagation x-x. This arrangement permits a surface wave to propagate along the transducer with low attenuation and small phase-shift. As shown in Fig. 8 non- overlapping "inactive" fingers m may also be provided.