baber/WOPTO huggingface dataset:
Patent GB-1243414-A (GB)
Title: Preparation of (cis-1,2-epoxypropyl)phosphonic acid and derivatives thereof
Inventor: CHEMERDA JOHN MARTIN
IPC: C07F9/141
Filed: 1969-05-12
Abstract: 1,243,414. Preparing cis-1 ,2-epoxypropyl phosphonic acid and its esters and salts. MERCK & CO. Ltd. 12 May, 1969 [15 May, 1968], No. 23968/69. Heading C2C. A compound of the formula wherein R is an ester-forming group is obtained by reacting a phosphite ester P(OR) 3  with a compound of the formula  wherein X is a halogen atom or a quaternary ammonium salt radical. The radical R may be alkyl, cycloalkyl, alkenyl, C 2 -C 5  alkynyl, cyano C 1 -C 5  alkyl, aryl, C 1 -C 5  alkyl substituted mononuclear aryl, or aralkyl, and X is halogen, e.g.Cl,Br or I or a quaternary ammonium salt radical, e.g. one having a cation of the formula <SP>+</SP>-NR<SP>1</SP>R<SP>2</SP>R<SP>3</SP> wherein R<SP>1</SP> is C 1 -C 5  alkyl and R<SP>2</SP> and R<SP>3</SP> are each C 1 -C 5  alkyl or R<SP>2</SP> and R<SP>3</SP> together with the N atom form a heterocyclic group, e.g. piperidino. The reaction is generally carried out in an inert solvent and the isomeric ester mixture formed can be separated, e.g. by gas- or adsorption chromatography, to yield the esters of () cis- and () trans - (1,2 - epoxypropyl) phosphonic acid. The esters of the () cis acid can be converted to the free acid or salts thereof, which have antibiotic properties, by various defined methods and the free acid can be converted to alkali metal-or alkaline earth metal salts or to the amine salts by treatment with an appropriate base. The 1,X-1,2-propylene oxide compounds of Formula I in which X is halogen may be obtained by treating a compound of the formula CH 3 CH = CHX with an oxidizing agent, e.g. perbenzoic acid, metachloroperbenzoic acid, trifluoroperacetic acid or perphthalic acid. The compounds I in which X is a quaternary ammonium salt radical are obtained by reacting an a-halopropionaldehyde with a secondary amine, e.g. piperidine, in the presence of a base and then reacting the product with a C 1 -C 5  alkyl iodide. Tricyanoethyl phosphite is obtained by reacting #-hydroxypropionitrile in benzene with PCl 3  in triethylamine at 10 C. Tri-tert butyl phosphite is obtained similarly using tertbutanol instead of the #-hydroxy propionitrile.
Patent GB-1045026-A (GB)
Title: Method for use in the production of a copy of an original text
IPC: B41C1/055
Filed: 1964-06-10
Abstract: 1,045,026. Copying using infra-red radiation. W. RITZERFELD and G. RITZERFELD. June 10, 1964 [June 13, 1963], No. 23980/64. Addition to 922, 666. Heading G2C. Copies of original text are produced by bring- ing a layer transfer sheet into contact with a sheet bearing a layer which becomes adhesive on heating, exposing the sheets imagewise to infra-red radiation, allowing them to cool and then separating as in the parent Specification except that polyethylene or polyvinylidene chloride is used as the material which becomes adhesive on heating. The sheet which bears the layer of latently adhesive material may be paper.
Patent GB-207864-A (GB)
Title: Improvements in walling
IPC: E04B1/64
Filed: 1922-09-05
Abstract: 207,864. Thomson, R. Sept. 5, 1922. Double walls in which the two thicknesses are adapted to interbond have interposed in the air spaces between the adjacent upright faces of the leaves an insulating sheeting of waterproofed material 8 adapted to divide the air spaces 6, 7 into two parallel sets of air chambers 6<1>, 6<11> and 7<1>, 7<11>. The sheeting 8 may be continued around the portions of the bonding courses which enter into the outer leaf so as to insulate the two leaves from each other both as regards their horizontal bedding surfaces and their upright faces. In the modification shown in Fig. 9, the adjacent faces of the leaves are inclined and the insulating material is so arranged as to provide one set of air spaces only.
Patent GB-1444082-A (GB)
Title: Semiconductor device
IPC: H01L27/144
Filed: 1972-05-23
Abstract: 1444082 Photosensitive IGFET UNIVERSITY OF EDINBURGH (COURT) 22 Aug 1973 [23 May 1972] 24081/72 Heading H1K In an IGFET, the channel current path between source and drain regions 2 in a semiconductor body 1 is covered with a dielectric layer 3 which contains, or as shown is overlain by a layer 5 of, charge-injecting photosensitive material in contact with an electrode 6, illumination of the material in combination with biasing of electrode 6 causing charge-injection into dielectric layer 3 and consequent modulation of the channel current. The photosensitive material may be pinacyanole, kryptocyanine, crystal violet, methylene blue, phenosafranine, or nitrosobenzene and when present as a separate layer may be used alone or with a polymeric matrix (which may include dispersed metal particles). The material may be spun-on as a viscous solution, allowed to settle from a suspension in a volatile solvent, D.C.- or A.C.- sputtered, sublimed or evaporated. The dielectric may be present as a single layer of silicon oxide or silicon oxide-nitride, or as a nitride-over-oxide double layer, may include a silicon floating gate, and may include dispersed metal particles. The bias on electrode 6 may be produced by the photovoltaic effect. The IGFET may be used as an on-off device (channel current being present or absent) or may be used with current variations monitored to indicate the extent of illumination. The effect of illumination at one frequency may be reversed by illumination at another frequency. The device (or an array of them) may be housed in a hermetic casing having an optical window or may be encapsulated in a transparent material. Applications suggested include memory arrays and TV cameras. Laser beam scanning may be used and devices of an array may each be illuminated by an individual fibre of a fibre optics band.
Patent GB-343064-A (GB)
Title: Improved method and apparatus for supplying and mixing charges for internal combustion engines
IPC: F02M19/03
Filed: 1929-08-07
Abstract: 343,064. Spray carburetters. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Moore Inventions Corporation; Slater Building, Worcester, Massachusetts, U.S.A.) Aug. 7, 1929, No. 24117. [Classes 7 (ii) and 7 (iii).] A gaseous fluid is discharged through an annular passage 49 round the fuel nozzle 42, arranged on the engine side of an air valve 10, and draws up fuel, by injector action, from a low-level tank, fuel valves 50, 52 regulating the fuel supply in accordance with engine suction, at high and low speeds respectively; the gaseous fluid may be gas, tapped from the cylinders as described in Specification 343,063. The needle valve 50 is raised against a spring 64 by a bellows 66, the inside of which is connected by a pipe 68 to holes 70 in a Venturi passage 24 round the fuel nozzle ; the valve 50 is thus kept lifted at low speeds and only comes into action when the suction in the passage 24 is reduced at high speed. The needle valve 52 is moved in conjunction with the air valve 10 by a pin 58, which follows the end of a slot 60 in a link 54, actuated with the valve 10, and which is attached to a lever 83 pivoted at 84, connected to the valve 52 and pressed downwards by an adjustable spring 86 which surrounds a stop limiting its upward movement ; the lever 83 is also connected to a bellows 78, a stop 85 limiting its downward movement; the inside of the bellows is connected by a passage 80 to the air passage at a point below the Venturi passage 24 ; the slot 60 enables the valve 52 to move under engine suction at half open positions of the throttle 10 but when the throttle is fully open the upper end of the slot 60 contacts with the pin 58 and holds the valve 52 open and the valve 50 then comes into action. An extension 100 of the slot enables the lever 54 to be pulled against a spring 98 by a wire 96 at starting so that the pin 58 falls and the valve 52 is opened by the spring 86. Reference has been directed by the Comptroller in Specifications 107,054 and 173.359, [both in Class 7 (iii), Internal-combustion engines, Carburetting- apparatus &c. for].
Patent GB-1102564-A (GB)
Title: Improved dispenser
IPC: A45D40/00
Filed: 1964-06-10
Abstract: 1,102,564. Medicinal or cosmetic dispensers. J. GABLER. 9 June, 1965 [10 June, 1964], No. 24181/64. Heading B8P. [Also in Division F1] A cylindrical container which may be of plastics material is formed on the inside surface of its side wall with a screw-thread 2, with which a circular plunger plate 10 engages, the plate 10 being screwed towards the upper end of the container when a pair of rods 11, integral with an apertured end closure 4, are rotated. The rods 11 pass through holes in the plate 10; and the closure 4 has a projecting part 6 which may be gripped to rotate the rods. The closure has a peripheral bead 7 sprung into a groove 8 in the upper end of the side wall, an annular channel 9 being formed in the closure to give flexibility. A metal casing 15 may be provided. In a modification, Fig. 2 (not shown), the rods (11) are integral with a rotatable container base. The positions of the bead 7 and groove 8 may be reversed. The container may be used to dispense a medicinal or cosmetic paste or cream; or for a solidified stick, in which case the plate 10 has lugs or is shaped to retain the stick.
Patent GB-894552-A (GB)
Title: Improvements in or relating to guillotine discharge doors
Inventor: HALL THOMAS
IPC: B65D90/54
Filed: 1957-07-30
Abstract: 894,552. Operating the doors of skips in shafts. QUALTER, HALL & CO. (SALES) Ltd. July 17, 1958 [July 30, 1957], No. 24185/57. Class 78 (4). The guillotine door 4 of a bunker 6 feeding a skip hoist is opened by energy stored during movement of the skip 21. In the construction illustrated, the door rests on springs 17 carried by guide rods suspended from a beam 5 which is drawn upwards, during the final movement of the skip 21, until the compression in the springs 17 is sufficient to overcome the friction caused by the material resting against the door 4, or alternatively until a catch similar to that described in Specification 788,903 is released by movement of the skip. The beam 5 is raised by cables 9 which pass over pulleys 7 on the beam 5 and over fixed pulleys 8, 11 to a pulley 12 on one end of a bell-crank 18, the other end of which carries a roller 19 engaging a track 20 on the skip. The springs 17 may be replaced by a pneumatic device or by a rubber spring. released by movement of the skip. The beam 5 is raised by cables 9 which pass over pulleys 7 on the beam 5 and over fixed pulleys 8, 11 to a pulley 12 on one end of a bell-crank 18, the other end of which carries a roller 19 engaging a track 20 on the skip. The springs 17 may be replaced by a pneumatic device or by a rubber spring.
Patent GB-781915-A (GB)
Title: Improvements in apparatus using monochromatic radiation of different wavelengths
IPC: G01J3/16
Filed: 1952-09-26
Abstract: 781,915. Photo-electric spectrometers. PERKIN-ELMER CORPORATION. Sept. 26, 1952 [Aug. 1, 1952], No. 24190/52. Addition to 703,530. Class 40 (3). In a spectrometer as claimed in the parent Specification, in which a body is examined by comparison of radiation intensity in two separate bands, dispersed radiation is received by elements which direct parts of the spectrum on to a detecting device, diverting means being provided so that a different part also falls on the device, means being provided for ensuring that the detector receives each part alternately and the means for directing the wavelengths along different paths comprises a mirror having two parts angularly offset relatively to each other. As shown, infra-red radiation from a source 10 is reflected from a plane mirror 11, a spherical mirror 12 producing an image of the source at Is, through a chopping plate 13 and on curved mirror 16 and plane mirror 17 so as to focus the radiation on to an entrance slit 18, the substance under examination being contained in a cell 35. After passing through the entrance slit the rays are collimated by a mirror 19, the parallel rays being dispersed by a prism 20 and reflected back through the prism for further dispersion by means of a pair of mirrors 21 placed one on top of the other, the angle at which they are positioned being capable of separate adjustment so that one selects one of the wavebands which fall on an exit slit 22 and the other the second waveband. The radiations are directed from the slit on to mirror 24 and focused by mirror 25 on to a detector 26. The chopping plate is so shaped as to allow the two selected wavebands to reach the detector alternately. The output of the detector is fed to a phase-sensitive rectifier also fed with a signal produced by a generator driven in synchronism with the chopping plate. The output of the rectifier represents the difference in the intensity of the two bands and may be used to adjust an attenuator in one of the beams. The collimating and focusing element may be lens, which are of quartz if ultra-violet radiation is used.
Patent GB-1119222-A (GB)
Title: Improvements in or relating to boilers or furnaces having flue inserts
IPC: F22B37/06
Filed: 1965-06-08
Abstract: 1,119,222. Flue baffles. H. VIESSMANN. 8 June, 1965 [12 June, 1964], No. 24228/65. Heading F4B. A flue baffle for a boiler comprises at least one rod or bar shaped longitudinal member 2 to which transverse members 3 are movably or rigidly fixed. Co-planar bar-shaped transverse members 3 formed with end lugs 4 and flanges 5 to obstruct the gas flow are pivoted to two longitudinal bars 3 so that the baffle can be folded up to withdraw it from the flue. The transverse flow control bars may be pivoted to a single longitudinal bar, Fig. 3, (not shown). A flue baffle comprising a straight bar with crosspieces secured to it may be supported diagonally within the flue so that the cross-pieces extend over the whole cross section of the flue, but the insert can be removed through a comparatively small aperture for cleaning.
Patent GB-790354-A (GB)
Title: Improvements in universal joints
IPC: F16D3/40
Filed: 1956-08-08
Abstract: 790,354. Universal couplings. GELENKWELLENBAU GES. Aug. 8, 1956 [Sept. 21, 1955], No. 24262/56. Class 80 (2). In a universal joint consisting of a cross-link 1 and two fork-like driving-members 3, 5, the driving members 3, 5 are made of a non-ferrous material, for instance of light metal, synthetic material or the like, and may be provided with iron reinforcements at the force flux conducting places. The cross-link may be made of iron material and wholly or partially enveloped with a non-ferrous material such as light metal, synthetic material or the like. The bearings incorporated may be needle, roller, ball or of antifriction material and a segment shaped iron reinforcement 11a may be extended to form two of the fixing studs. Cavities, ribs or the like may be provided in the fork-like driving members to assist in the dissipation of the heat generated.
Patent GB-686570-A (GB)
Title: Production of finely divided titanium dioxide
IPC: C01G23/07
Filed: 1950-10-05
Abstract: Pigmentary titanium dioxide of which at least 90 per cent consists of rutile, is produced by discharging a uniform premixture of titanium tetrachloride vapours, gases containing free oxygen, and a volatile aluminium compound in amount sufficient to yield a product containing 0.01-10 per cent alumina, into a combustion zone, suitably at a linear flow rate of 1-50 metres per second, the mixture being at a temperature of 135-500 DEG  C., and continuously contacting the premixture with an auxiliary flame sustained by a separate inflow of combustible gas to ignite the mixture and maintain it in a flaming state.  Suitable aluminium compounds are aluminium halides, e.g. chloride, trimethyl aluminiums &c.  The aluminium chloride may be mixed with the titanium chloride to be vaporized, by passing the oxygen-containing gas therethrough or it may be separately sublimed, e.g. by passing chlorine, with or without a diluent gas, over aluminium shavings or a mixture of alumina and carbon, or carbon monoxide and chlorine, or phosgene, over alumina, the vapours being added to the titanium chloride vapours.  The premixture should contain at least 50 per cent, up to a surplus, of oxygen for the decomposition of the titanium tetrachloride. Inert gas such as carbon dioxide or nitrogen may also be present. Methane, acetylene, hydrogen &c. or, preferably, carbon monoxide are employed as combustible gases.  Temperatures of 1000-1600 DEG C immediately ambient to the auxiliary flame are specified. Examples disclose burners consisting of concentric tubes, the titanium chloride mixture supply tube being surrounded by, and in some cases also surrounding, the supply tubes for the auxiliary flame-producing gases.  The product may evacuated to remove chlorine and hydrogen chloride, and neutralized with a small amount of lime.  Specification 673,782 is referred to.
Patent GB-618790-A (GB)
Title: Improvements in and relating to hollow bricks
IPC: E04B2/48
Filed: 1946-08-16
Abstract: 618,790. Building blocks. HOLECEK, V. Aug. 16. 1946, No. 24486. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 16. 1946.]. [Class 87(i)] A building block provided with weight-reducing recesses B open to one horizontal face has further recesses C adjacent the front and rear faces, and grooves E closed at one end F on both sides of mortar grooves D in the ends of the block.
Patent GB-741199-A (GB)
Title: Improvements in and relating to internal combustion engines which normally operate substantially on gaseous fuel
Inventor: MITCHELL ROBERT WESLEY STUART
IPC: F02D9/00
Filed: 1953-09-04
Abstract: 741,199. Mixing air and gas; regulating. ENGLISH ELECTRIC CO., Ltd. Sept. 3, 1954 [Sept. 4, 1953], No. 24495/53. Classes 7(2) and 7(6) In an engine operating normally substantially on a gaseous fuel, at part load performance a reduction in air supply is effected by heating at least part of the inlet air while the total volume of the inlet air admitted to the engine is reduced by throttling. Air is drawn in through a conduit 2 and interconnected throttles 5 and 7 are arranged so that as more air is bypassed through heat exchanger 6 by the throttle 5 the flow of air is also throttled to a greater extent by the throttle valve 7. The valves are controlled by the engine governor 10. Gaseous fuel is introduced by the valve 11. The heat exchanger is heated by the engine exhaust. Instead of indirect heat exchange admixture of a hot gaseous medium preferably part of the exhaust gases of the engine to the inlet air can be used. The invention is mainly intended for use with engines operating with pilot injection. It relates preferably to so-called dual fuel engines which can be operated partly or wholly on liquid fuel. It is also applicable to spark ignition engines.
Patent GB-1163818-A (GB)
Title: Improvements in or relating to Telecommunications Systems
IPC: H04Q3/00
Filed: 1967-05-26
Abstract: 1,163,818. Automatic exchange systems. SIEMENS A.G. 26 May, 1967 [27 May, 1966], No. 24559/67. Heading H4K. In a multi-exchange system having some privileged subscribers who retain their personal directory numbers irrespective of the exchange to which they are currently connected, every exchange includes a store containing the number and present location of these subscribers. If one of the subscribers, e.g. 890, moves to another exchange, e.g. E, the location data in the store at his previous exchange D is modified so as to indicate to which of the exchanges he has moved to. A call to this subscriber from another exchange, e.g. A, is initially routed to his previous exchange in accordance with the unmodified stored data at the calling exchange A and tandem exchange C. From D the "change-of-exchange" data is signalled back to C and A which both update their stores correspondingly. The call to the wanted party may be extended over a junction between D and E or the original connection to D may be broken down and a new connection set-up over the direct junction between A and E. The data in other exchanges, e.g. B, is up-dated whenever these exchanges become involved, either as calling or tandem exchanges, in a call to 890. The interexchange junctions may be TDM highways utilizing pulse-phase or pulse-code modulation or they may be frequency division multiplex junctions. Since the special subscribers are not allotted a specific exchange code-at least so far as their (dialled) directory number is concerned-the calling of such a subscriber involves in effect the features of abbreviated dialling and abbreviated interexchange code transmission. It is suggested that the presentexchange-data for all the subscribers to the system may be stored at each exchange. A highly simplified schematic for the logic required in each exchange is depicted in Fig. 2 (not shown).
Patent GB-425115-A (GB)
Title: Improvements in or relating to the manufacture of staple fibre yarns from continuousfilaments
IPC: D01G1/10
Filed: 1933-09-05
Abstract: 425,115. Treating yarns. BRITISH CELANESE, Ltd., 22, Hanover Square, London, TAYLOR, W. I., and GIBBINS, L. B., c/o British Celanese, Ltd., Spondon, near Derby. Sept. 5, 1933, No. 24565. [Class 120 (iii)] In the production of staple fibre yarns by converting a bundle of continuous filaments into a continuous product containing staple fibre, the product is subjected to the action of a gaseous stream so as to remove short fibres and fluff. The gaseous stream may be one or more air blasts, or it may act by suction. The invention may be applied to the method for producing staple fibre yarns described in Specifications 424,683, 424,752, 424,830, and 424,879, and it may be combined with treatments with wax, adhesive, or a solvent or softening agent for causing long projecting fibres to lie flat. If the product is to be treated with oil or other conditioning fluid, it should be subject to the action of the air jets first. A bundle of continuous filaments 5 passes between two pairs of rollers 6, 7 and 8, 9 rotating at different speeds so as to break the filaments. Short fibres are removed by air jets from nozzles 11, 12 in the form of fishtail gas burners.
Patent GB-188309-A (GB)
Title: Improvements in collars for personal wear
IPC: D03D1/00
Filed: 1922-09-11
Abstract: 188,309. Heusen, J. M. van. Nov. 2, 1921, [Convention date]. Fashioned fabrics; double and single fabrics combined.-In multiply fabric collars, to enable the edges to be turned in and stitched, the fabric is woven with portions 13, 14, Fig. 3, of interwoven multiply fabrics, the edge portions 15, 16 of divided layers and the portions 17 of tubular fabric. The fabric is woven with a curvilinear weave and the fold portion 3 is weakened for reversing or folding the. collar by omitting some of the threads, or by omitting to interweave. The divided layers at the. edge may be interwoven in pairs, as shown in Fig. 8, or may be interwoven on one side of the fabric, as shown in Fig. 4. This enables the edge to present the same appearance as the main portion of the collar on both sides or on one side only.
Patent GB-1161470-A (GB)
Title: Improvements in or relating to Fuel Burners
Inventor: DEVEREAUX ROBERT EVERARD MICHA
IPC: F23D11/40
Filed: 1968-05-23
Abstract: 1,161,470. Fuel burners. STAR ENG. (GOSPORT) Ltd. 23 May, 1968, No. 24767/68. Heading F4T. A fuel burner 16 comprises a fuel injector nozzle device 24 adjustably mounted in a sleeve 26 to which is secured by rods 27 an air swirler 28 which is located ahead of the nozzle outlet and consists of a plurality of swirl vanes 29 secured to an annular disc 30 lying ahead of vanes 29 and disposed normal to the nozzle's longitudinal axis. Each vane 29 is forwardly inclined relative to a plane lying normal to the nozzle's longitudinal axis at an angle of 30 degrees and the outer end of each vane 29 is inclined relative to disc 30 at an angle of 22¢ degrees. The fuel burner 16 is located within a tube 14 with an annular gap 37 between the tube 14 and the periphery of annular disc 30. Fuel is supplied via a feed tube 21 to nozzle 24 and air is supplied by means of an electrically operated centrifugal type fan or blower through a volute (13) to tube 14. Ignition is effected by means of electrodes 34.