baber/WOPTO huggingface dataset:
Patent GB-1062704-A (GB)
Title: Diesters of 18-hydroxy-yohimbane-carboxylic acids
IPC: C07D459/00
Filed: 1966-02-03
Abstract: Novel compounds of the formula <FORM:1062704/C2/1> wherein R1 is a C1- 3 alkyl radical, R2 and R3, which may be the same or different, are H, alkyl (which may be joined together to form a ring) or aryl, which may be substituted by one, two or three C1- 3 alkoxy radicals, and R4 is CH3O- or H, and their salts with inorganic and organic acids, and their optically active isomers, are prepared by reacting a compound of formula <FORM:1062704/C2/2> wherein R1 and R4 are as previously defined, in a known manner with a reactive carboxylic derivative of an a -hydroxy acid of formula <FORM:1062704/C2/3> wherein R2 and R3 are as previously defined, and X is a protective group, and the protective group in the resulting reserpic acid derivative is split off, whereupon the desired product obtained is, if desired, converted into a salt with an organic or inorganic acid, and/or separated into its optically active isomers.  The compounds are of use in the pharmacological field.  18 - (O - tetrahydropyranyl - DL - mandelic acid) ester of methyl reserpate, which may optionally bear up to three CH3O- groups on the mandelic acid benzene ring, and 18-(a -tetrahydropyranyloxy - cyclohexane - carboxylic acid) ester of methyl reserpate are isolated reserpic acid derivatives, as intermediates in the above process.  The imidazolide of O-tetrahydropyranyl-DL-(and L)-mandelic acid and also the 3,4-dimethoxy and 3,4,5-trimethoxy DL-derivatives thereof are prepared by reacting the corresponding mandelic acid with dihydropyran in the presence of p-toluene sulphonic acid to give the corresponding tetrahydropyranyl ester of O-tetrahydropyranyl mandelic acid, which is then reacted with NaOH to give the Na-salt of the O-tetrahydropyranyl mandelic acid, followed by acidification to the free acid, with oxalic acid, which is then reacted with N,N1-carbonyldiimidazole to give the imidazolide.  The imidazolide of a -tetrahydropyranyloxy-cyclohexane-carboxylic acid is prepared by reacting cyclohexanone cyanohydrin with dihydropyran to give a -tetrahydropyranyloxy-cyclohexane-carboxylic acid nitrile, which is then subjected to alkaline saponification, yielding the free acid, which is subsequently reacted with N, N1-carbonyldiimidazole.
Patent GB-1147315-A (GB)
Title: Improvements in or relating to reversible feed mechanisms for punched recording media
IPC: G06K13/30
Filed: 1968-01-31
Abstract: 1,147,315. Feeding records. SIEMENS A.G. 31 Jan., 1968 [1 Feb., 1967], No. 4866/68. Heading G4M. One or other of levers 14, 15, when pivoted by the associated cam 18, 19, acts on thrust plate 8b to move feed element 8a in the forward direction, element 8a returning by the action of spring 12, and cams 18, 19 are so arranged with respect to cam 3 which raises and lowers element 8a that the resultant feed direction depends on which one of levers 14, 15 is latched in an inoperative position by armature 24 of bistable solenoid 23. Feed may be reversed when an error is sensed after a punching operation.
Patent GB-1209254-A (GB)
Title: Recirculating ball screw nut assembly
Inventor: DABRINGHAUS GUSTAV HERMAN
IPC: F16H25/22
Filed: 1968-01-31
Abstract: 1,209,254. Screw-and-nut mechanisms. G. H. DABRINGHAUS. 31 Jan., 1968 [20 Oct., 1967], No. 4921/68. Heading F2Q. In a recirculating ball type screw-and-nut gear, the ends 46 of pins 34 deflect the balls 24 at the ends of the helical thread groove 22 of the nut 12 into or out of bores 40, 42 which connect with an axial return passage 26 in the nut, curved surfaces 56 of deflector blocks 52 guiding the balls between the passage 26 and the bores 40, 42. To form the return pathway in the nut, the bore 26 is first made from one end of the nut. Oppositely inclined bores 32 in planes normal to the axis of the nut, one adjacent each end of the nut, are made to intersect the thread groove 22, and pins 34 are forced In the same planes, bores 40, 42 intersect the passage 26 and cut away part of the end of each into the bores 32 to interrupt the thread groove. pin 34 to form a concave deflecting surface 46. The outer ends of bores 40, 42 are enlarged to a rectangular cross-section to accept the deflector blocks 52, shoulders (58) (Fig. 3, not shown), in the nut locating these blocks. The blocks 52 are retained by pegs, set-screws, welding, or adhesives. The bores and rectangular cut-outs are preferably formed by electrical discharge machinery. The nut is formed with an externally screw-threaded extension to engage a fixed frame 18.
Patent GB-512130-A (GB)
Title: Improvements in and relating to pipe couplings
IPC: F16L37/18
Filed: 1939-02-15
Abstract: 512,130. Pipe couplings. BESTA, P. Feb. 15,1939, No. 4996. [Class 99 (i)] In a flanged pipe joint in which a clamp comprises a ring 7 engaging behind the flange 4 and having means engaging the other flange 3 to press them together, the ring is in two or more parts hinged together by bolts 12 in lugs 10, 11 on the parts, one of the bolts being removed to allow the ring to be opened, and the clamp to be removed from the pipes as a whole. A U-shaped clamping lever 9 bears against the flange 3, and is pivoted on arms 8 fixed to the upper part of the ring 7. An annular rib 5 on flange 3 compresses packing in a groove 6 in flange 4. The rib and groove may be shaped for wedging engagement. In another form the ring 13, Fig. 5, which has hinged parts (not shown) surrounds the flanges 3, 4 and has a shoulder 13a engaging flange 3. Pins 15 in flange 4 engage inclined slots 14 in lugs 13c on the ring which is rotated to tighten the joint and is locked by a key 16.
Patent GB-782671-A (GB)
Title: Improvements in or relating to photographic contact printing apparatus
Inventor: DAINES STANLEY EDWARD
IPC: G03B27/22
Filed: 1954-02-19
Abstract: 782,671. Photographic contact printing apparatus. HALL HARDING, Ltd. Jan. 21, 1955 [Feb. 19, 1954], No. 5003/54. Addition to 709,542. Class 98(2) In a contact printing apparatus of the kind described in the parent Specification a single spring tends to rotate a transparent or translucent drum and a blind roller so as to wind a blind both on to the drum and on to the roller. As shown, spring 24 is housed in blind roller 20 and is connected between the roller and shaft 21. Band 26 is wound on pulley 23, fast on shaft 21, so as to exert a turning moment on the glass drum which tends to rotate it in the opposite direction to that in which the tension in the blind 18, due to spring 24, tends to rotate it. The drum is supported by its metallic end flanges 4 on rollers 5.
Patent GB-285464-A (GB)
Title: Improvements in materials for the treatment of wounds
IPC: A61L17/08
Filed: 1928-02-17
Abstract: 285,464. Linden, Maria Countess von. Feb. 19, 1927, [Convention date]. Disinfectants and antiseptics.-Suturing and bandaging materials such as sewing silk, catgut, muslin, gauze, wadding, &c. are rendered permanently sterile and actively antiseptic by impregnation with copper compounds, such as copper glyceride, copper sulphate, copper dimethylglycocoll or copper dimethylglycocoll and methylene blue. Catgut impregnated with cumol is also referred to.
Patent GB-433782-A (GB)
Title: Improvements in or relating to automatic regulating means for use with rectifying and inverting electric arc converter power plant
IPC: H02M7/00
Filed: 1934-02-15
Abstract: 433,782. Converting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and TAYLOUR, H. H., c/o General Electric Co., Witton, Birmingham. Feb. 15, 1934, No. 5056. [Class 38 (ii)] Automatic regulating means for a converting arrangement including a rectifier and an inverter for interchanging power between an A.C. and a D.C. network comprises means for regulating the rectifier and inverter in dependence on a comparison of a standard speed and a speed proportionable to the voltage to be regulated. The device responsive to the voltage of the D.C. line comprises a differential gear 19, 20, 23 driven by two motors 8, 14, a constant speed motor 14 and a motor 8 the speed of which is a function of the D.C. voltage. Any difference between the speeds of the motors due to the voltage of the line 6 being high or low causes lateral movement of the member 23. This carries a contact arm 24 which engages a resistance 25<a> and contact strip 26 when it moves to the left and causes adjustment of the rectifier output and engages a resistance 25<b> and contact 27 when it moves to the right to cause adjustment of the inverter 2. The grids of the discharge devices are supplied from transformers controlled by saturating windings 28, 30. In a modification the member 23 rocks in opposite directions the stators of two synchronously driven rotary distributers one of which supplies the rectifier and the other of which supplies the inverter. The Specification states that these distributers may be moved successively instead of simultaneously. A particular load characteristic may be obtained by compounding the motor 8 as shown in Fig. 3 in which windings 42, 43 and 44 arranged on the pole 39 and yoke of the stator are connected in series in the rectifier circuit and a winding 41 on the other pole 38 is connected in series in the inverter circuit. This arrangement is stated to give a load characteristic 46, Fig. 4. Specifications 431,784 and 432,106 are referred to.
Patent GB-704923-A (GB)
Title: Improvements in fabric take-up mechanisms for knitting machines
IPC: D04B15/88
Filed: 1950-03-13
Abstract: 704,923. Knitting-machines. SIRMAY, J., and ZERUNEITH, R. E. March 13, 1950 [March 15, 1949], No. 5058/52. 'Divided out of 704,852. Drawings to Specification. Class 74 (2) A cylinder-and-dial machine has fabric take-up mechanism driven by pawl and ratchet mechanism operated from the main cam shaft of the machine. The subject-matter of this Specification is described in the abridgment of Specification 704,852 to which reference is made in this Specification.
Patent GB-562940-A (GB)
Title: Improvements in or relating to files and like abrasive tools
IPC: B23D61/18
Filed: 1943-03-30
Abstract: 562,940. Files; saws. DAVIES, G., WOLSEY, W., and PERESS, J. S. March 30, 1943, No. 5084. [Classes 61 (ii) and 145 (ii)] A file comprises a flexible strip or wire A formed with teeth or file cuts B and loops &c. C at the ends to engage a frame in which the wire is placed under tension for use in the manner of a hacksaw, Fig. 5, showing a plate E bent and slotted at E<1> to engage the beaded end of such a wire file and apertured at E<2> to engage a stud F<1> on a screwed post of the tension frame F. The Provisional Specification also states that the wire or strip file may be supported in a power driven frame or on the pulleys of a band sawing machine, and such an abrasive stop may have file teeth formed on one or both faces and in the case of a bandsaw one or both surfaces may be file cut while retaining the ordinary saw teeth.
Patent GB-1301085-A (GB)
Title: Improvements relating to a tubulous heat exchanger
Inventor: WHITEHOUSE PAUL REGINALD
IPC: F28F27/00
Filed: 1969-01-30
Abstract: 1301085 Tubular heat exchangers; boiler feedwater controls JOHN THOMPSON (DESIGN & CONTRACTING DIVISION) Ltd 29 Jan 1970 [30 Jan 1969] 5142/69 Headings F4A and F4S Flow restrictors 15 are provided at the inlet ends of a plurality of tubes 3 in a heat exchanger such as a feedwater heater in which the liquid flows through the tubes, said restrietors being mounted to be movable simultaneously into or out of said tube ends. As shown, the restrictors 15 are mounted (each in an axially adjustable manner) on a throttle plate 6 disposed within the header chamber defined by a wall 8 extending from a tube plate 2 and having a fluid inlet connection 37. The throttle plate is slidable axially on a spigot 12 and is connected by an axially guided sleeve 7 to means 32-35, manually or electrically actuated, for moving said sleeve and plate assembly, axially of the tubes, the restrictors 15 being tapered or otherwise shaped so that axial movement thereof obstructs more or less the fluid flow path into the tubes. The plate 6 may have flow-facilitating apertures (not shown) therein, spaced between and around the restrictors 15. Access to nuts 17 for individual adjustment of the restrictors is through a port 25 in the header wall. The throttle plate 6 may have a pad 23 thereon so that if necessary, e.g. if a fault condition occurs, the throttle plate may be used to seal-off the tubes from fluid flow. The tube ends may project from the tube plate and have a collar (40) inserted therein (Fig. 2), or the tube ends may terminate below the surface (4) of the tube plate, a collar (41) being inserted in the tube apertures at said surface (Fig. 3).
Patent GB-192620-A (GB)
Title: Improvements in or relating to dental impression trays
IPC: A61C9/00
Filed: 1922-02-22
Abstract: 192,620. Bowen, B. K. Feb. 22, 1922. Teeth, artificial.-A dental impression tray comprises two sections 1, 2 formed with projections 3 which together form a handle. One of the projections 3 is formed with a lug 7 which, together with a thumb screw 4, serves to hold the parts rigidly together. Each section carries on its lingual side a hinged flange 10 which may 'be manipulated to force the impression material into closer ccntact with the gums. The tray may, if necessary be removed from the mouth in sections, the impression material being cut by inserting a knife blade between the handle portions of the tray.
Patent GB-763212-A (GB)
Title: Improvements in or relating to stoppers for the mouths of bottles, containers, phials or the like
IPC: B65D39/00
Filed: 1952-04-24
Abstract: 763,212. Stoppers. BRUENE, H. April 24, 1952 [Dec. 5, 1951 ; Dec. 5, 1951], No. 5246/55. Divided out of 763,211. Class 125(3). A hollow stopper of polyethylene with ribs 3 has the lower faces of the extremities of the ribs upwardly curved to lie against the inner wall of the container mouth. The ribs may be weakened at 6 to allow escape of gas in the event of inner excess pressure.
Patent GB-1533939-A (GB)
Title: Lifting jacks
IPC: B66F3/08
Filed: 1977-02-09
Abstract: 1533939 Lifting jacks AUGUST BILSTEIN 9 Feb 1977 [11 Feb 1976 25 Oct 1976] 05346/77 Heading B8J A lifting jack for vehicles comprises a support leg 10, a load-bearing member 52 carried on a screw spindle 12 or 53 which is rotated through gears 14, 15 by a handle 16 or 54. Gear wheel 14 is rigidly attached to spindle 12 and is supported on an axial bearing 18 on a bearing plate 17 which is locked to the upper end of the support leg 10 by slots and projections, preferably having a resilient action. In the embodiment shown in Fig. 8, thread 53<SP>1</SP> of screw spindle 53 is disengaged from threaded bore 67 of the load-bearing member 52 at the extreme positions but resilient elements 72, 75 urge the threads to engage when rotated in the appropriate direction.
Patent GB-588701-A (GB)
Title: Improvements in or relating to insulation of boilers, storage tanks and the like
IPC: F22B37/36
Filed: 1945-03-05
Abstract: 588,701. Non-conducting coverings. VERSIL, Ltd., and BOWLES, M. March 5, 1945, Nos. 5464 and 6861. [Class 64 (ii)] The lagging or insulation B of a boiler or heat storage vessel A is protected by a frameless semi-cylindrical structure C fitting over but not attached to the insulation and formed of readily separable sections consisting of circumferentially corrugated curved sheets which overlap and are secured together by coach screws D. The sheets may be made of metal, asbestos, cement &c. The ends of the boiler may be protected by flat sheets of similar material and connection therebetween may be facilitated by provision of slits along the confronting edges to form interlocking tongues. Specification 548,132 is referred to.
Patent GB-549675-A (GB)
Title: Improvements in and relating to ornamental devices
IPC: B44C1/26
Filed: 1941-04-28
Abstract: 549,675. Jewellery. BRITISH ARTlFICAL RESIN CO., Ltd., and FISCHBEIN, W. J. April 28, 1941. No. 5469. [Class 43] [Also in Group XV] An ornamental device comprises a body a of lighttransmitting thermo-plastic or thermo-setting material pressed or moulded to the form of a cut gem, a carved figure or a stone having a design in intaglio or cameo, set in one end of a sleeve or collar c of light-transmitting material for facilitating the securing of the device to an article. The ornamental device a may be made from phenol-aldehyde resin, vinyl resin or cellulose acetate, and may be coloured. The sleeve or collar c may be cellulose acetate. When the sleeve is transparent, it may be provided with longitudinal grooves e. The ornamental device a may be secured to the sleeve c by a transparent adhesive, and the sleeve may be secured to an article d by means of an adhesive or by pins 1, Fig. 4.
Patent GB-196144-A (GB)
Title: Improvements relating to baby carriages and the like
IPC: B62B7/06
Filed: 1922-03-21
Abstract: 196,144. Hewitt, E. B. March 21, 1922. Cradles; folding-bedsteads. - The removable body of a folding perambulator is provided with rockers L and with legs K mounted on bars K<1> and rotatable by handles K<11>, so that it may be used either as a cradle or as a cot.
Patent GB-1438282-A (GB)
Title: Conductivity measuring cell
IPC: G01N33/04
Filed: 1972-05-15
Abstract: 1438282 Conductivity measuring cell CHALTON ELECTRONIC SERVICES Ltd 16 Aug 1973 [16 May 1972] Divided out of 1438281 05520/76 Heading G1N The description and claims are directed to the conductivity measuring cell used in the milk conductivity measuring apparatus of Specification 1438281 and described therein.
Patent GB-538855-A (GB)
Title: Improvements in or relating to high-pressure metal vapour electric discharge tubes
IPC: H01J61/28
Filed: 1940-03-29
Abstract: 538,855. Discharge lamps. PHILIPS LAMPS, Ltd. March 29; 1940, No. 5731. Convention date, April 1, 1939. [Class 39 (i)] In a high pressure mercury vapour lamp which runs normally with the mercury vapour unsaturated the time of re-starting of the lamp after it has been extinguished is lessened by providing an auxiliary chamber 4 which is surrounded by a. heater coil 8 in series with the discharge; a molybdenum plate 6 inside this chamber is connected to a.radiating plate 7 by a wire 5 the plate 6 and the chamber being blackened to accelerate cooling. If the lamp is extinguished the chamber 4 cools rapidly to lower the vapour pressure within the envelope; this reduces the potential required to produce as glow discharge and restarting, the heavy starting current through the coil 8 heating up the chamber and maintaining the necessary high vapour pressure. A radiating plate may be inside the chamber. The envelope is enclosed in an outer container 13 with a filling of nitrogen. Argon at 2 c.m. is used with the, mercury in the envelope. Discharge current values are given.
Patent GB-867082-A (GB)
Title: Improvements relating to open-hearth furnaces
Inventor: JACKSON ALBERT
IPC: F27D99/00
Filed: 1958-02-21
Abstract: 867,082. Open-hearth furnaces. UNITED STEEL CO'S. Ltd. Feb. 20, 1959 [Feb. 21, 1958], No. 5752/58. Classes 51 (1) and 51 (2). A reversible tilting open-hearth furnace 1, Fig. 2, comprises an offtake unit 78, and slag pockets 84, each connected to a regenerator 92 as disclosed in Specification 864,947 of circular cross-section formed of cylindrical steel casings with refractory linings to form a continuous gas passage. A water-cooled passage 11 for an oxygen lance 12, Fig. 1, is made through the casing 28 of the offtake unit 10, the lance running between the flanges of inclined rails 50 on a carriage 48 and connected by a rope 58 to a counterweight 118 which runs along the opposite face of the rails and which is connected to a motor-driven winch 60. The furnace has gas burners 13 at each corner each which comprises a steel tube 14, Fig. 5 (not shown), forming a water jacket, within which tube a cylindrical baffle separates the return and supply flows of water, and which houses gas and oxygen pipes. A steel-encased flue 99, Fig. 10, from each regenerator leads to a waste-gas and a waste-air reversing valve 100, 101, the waste gases flowing from the valve 100 through a flue 102 to a waste heat boiler 103, Fig. 11, and waste air flows from a main 104 to the regenerator when the valve 101 is open. The waste gases flow from the boiler 103 to a heat economizer and a fan 116 which is connected to a recirculating flue 117 which, dependant on the setting of a butterfly damper 107 controlled by a thermostat 108, allows hot waste gas to pass twice through the boiler and economizer. Gas not recirculated by the fan 116 passes through cyclones 109 to a bag filter plant 110 from which it is drawn by a fan 111 to a chimney 112 and so escapes to the atmosphere. The dust collected by the filter plant is discharged on to a worm conveyer from which it is delivered into a storage hopper 114.
Patent GB-1461563-A (GB)
Title: Method of purifying a neon-helium mixture
IPC: B01D53/04
Filed: 1975-02-11
Abstract: 1461563 Separating neon-helium mixtures from gases LENINGRAD TEKHNOLOGICH INST KHOLODILNOI PROMYSHLENNOSTI 11 Feb 1975 [26 April 1974] 5787/75 Heading B1L Neon-helium mixtures containing (by volume) 2-7% neon, 1-3% helium, 0.5-1.5% hydrogen, 88.5-96.5% nitrogen and traces of oxygen and C1-C5 hydrocarbons are purified by dephlegmation at 67-77K and 4-7 kg/cm<SP>2</SP> gauge to obtain a mixture containing 68-74% neon, 22-24% helium, 1-2% hydrogen, 1-8% nitrogen and traces of oxygen and hydrocarbons and passing this mixture at the same temperature and pressure through one or more microporous absorbents having a pore size of 3-9A to absorb the remaining nitrogen, oxygen and hydrocarbons. Zeolites and activated charcoal are the specified absorbents. The gases may be desorbed by a step-wise pressure reduction.
Patent GB-281514-A (GB)
Title: Improvements in electrical relays
IPC: H01H51/12
Filed: 1927-03-02
Abstract: 281,514. whipp, F., and Whipp & Bourne, Ltd. March 2, 1927. Electromagnetic switches; contact-making relays.-An electromagnetic relay has two coils each containing a fixed and movable core so arranged that when energized the movable core is repelled from the fixed core throughout the whole of its length the pivotal axis of the movable cores being at right angles to the axes of the coils. As shown in the Figure the coils 1, 2 contain within them fixed coils 5, 6 and movable coils 3 are arranged alongside, the cones 3 being carried by a member pivoted at 4 and carrying a contact arm 7. Normally the arm 7 is held by a counterweight 13 or by a spring so that contacts 8, 10 are in engagement but on a sufficient energization of the coil 1, 2 the repulsion between the like poles of the fixed and movable cores moves the contact arm to the position shown. On an increase in energization of the coils 1, 2 the armature is moved over further to cause engagements of contacts 9, 11, the latter part of this movement being assisted by the movement of a weight 14, carried by an extension of the upper core 3 beyond its dead-centre position. The movement of the armature may be damped by arranging the lower core to move in an oil bath contained in a non-magnetic casing 15.
Patent GB-248749-A (GB)
Title: Improvements in and relating to apparatus for spraying liquids
IPC: A61M11/06
Filed: 1926-03-02
Abstract: 248,749. Barthel, H. March 5, 1925, [Convention date]. Inhalers. - Liquid-dispersing apparatus more particularly for use in inhalers, but applicable to other purposes such as disinfecting, comprises an inclined circular-section nozzle x, through which liquid is regulably fed in drops in front of a slot-shaped nozzle y supplied with compressed air or steam through a pipe n. The liquid to be dispersed is fed from a vessel b mounted above the nozzle x and immersed in a tank a supplied with hot water by a pipe f and cold water by a pipe g, by which the temperature may be regulated. According to the Specification as open to inspection under Sect. 91 (3) (a) dispersing- nozzles are mounted in a glass body i provided with a mouthpiece k and attached to a funnel q. Excess water from the tank a is led to a sprayer r which removes sputum from the funnel q and warms and moistens air drawn therethrough to the mouthpiece k. Thermometers e, l are fitted. These features are not described in the Specification as accepted.