baber/WOPTO huggingface dataset:
Patent GB-440999-A (GB)
Title: Improvements in and relating to vapour electric discharge devices
IPC: H01J61/82
Filed: 1935-08-12
Abstract: 440,999. Discharge apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 12, 1935, No. 22697. Convention date, Aug. 11, 1934. [Class 39 (i)] In a discharge device, such as a lamp, containing a filling vaporous during operation but readily condensible, a shield is provided separating a region of the envelope which is liable to entrap the filling from the discharge space, a clearance or crack being provided between the shield and the surrounding envelope which is so small as to be closed by filling condensed in the device. The region may be a tubular recess containing a stem 14, Fig. 3, traversed by leading-in wires 15 to which the shield 30a is secured, as by a pinch 33a or by fusion. The shield, has a skirt spaced from the envelope by a gap of about À01 inch, small enough to retain condensed vapour. An asbestos gasket spacing the device within an external vacuum jacket may be used to cool the envelope near the top of the shield to assist condensation of vapour thereon. In a modification, Fig. 5, both the shield 30b and the surrounding envelope 11b are flared outwardly. In the manufacture of this form, the stem carrying the shield cemented at 33b to the leading-in wires is pushed tightly into the tubular portion. The stem is then sealed to the envelope and while the glass is still soft is pulled down to obtain the desired clearance between the shield and the envelope. The shield may be provided with internal tubes loosely surrounding the leading-in wires, which are also closed by condensed vapour, Fig. 6 (not shown). The tube shown in Fig. 7 is provided with two terminal thimbles 44 sealed at their flared edges to tubular flanges 43 forming a so-called " bipost flare." A shield 30d is supported on each leading-in wire by a central tubular extension 33d, longitudinal movement being prevented by a cross wire 30y and the sleeve 45. The shield has a short outer flange, the space between which and the envelope is sealed by condensed vapour, as is also the central tube 33d. The filling may be sodium, potassium or cadmium together with 1-7 mms. of neon, argon, &c., the metal being introduced in a small glass capsule 38, Fig. 1, enclosed in nickel tubing, which is burst by an external high-frequency heating coil. The indirectly-heated electrodes 17 are arranged parallel to one another in the centre of the envelope, the heaters 19 being connected in series by a nickel cross-strip 20. The electrodes are supported by the leads 15 and also by wires 21 and 24 sealed to the insulating bead 22 which carries the capsule 38. Insulating sheaths protect the wires 15 and 24. Specification 274,914, [Class 39 (i)], is referred to.
Patent GB-184702-A (GB)
Title: Improvements in flushing cisterns
IPC: E03D1/18
Filed: 1921-08-27
Abstract: 184,702. Finley, A. E., and Green, H. Aug. 27, 1921. Valve-discharge water-waste preventers; protecting from frost.-Normally empty cisterns are provided with an arrangement, shown in Fig. 3, whereby, when the chain is pulled, a slide 8 is raised by the pull-rod 13 and rests on the valve 5, which previously had been kept closed by the slide. The elbow-piece 10 rises with the slide and allows the tubular discharge valve 12 to close. The cistern thereupon fills and the float 19 commences to rise and close the valve 5. When the valve 5 is sufficiently withdrawn the slide 8, which carries weights 14, falls, the valve 12 is raised and the cistern is discharged, the float remaining in raised position. Overflow passes away by the hollow valve.
Patent GB-747463-A (GB)
Title: Improvements relating to scrubbers for gases
IPC: B01D47/02
Filed: 1954-08-05
Abstract: 747,463. Gas scrubbers. JOBIN, A. L. J. Aug. 5, 1954 [Aug. 8, 1953], No. 22773/54. Class 55(2). A number of tanks 1, 2, 3, &c., are arranged one above another each having a perforated bottom 6 and an overflow 9 with gas seal 10 discharging into the tank below. A base tank 11 receives gas and has a liquid discharge 12. Fresh liquid may be introduced through a single inlet 14 or into each tank. The siphons 10 may be dispensed with.
Patent GB-971566-A (GB)
Title: Improvements relating to heat-exchangers
IPC: C01B3/00
Filed: 1962-06-13
Abstract: 971,566. Heat-exchanger tubes. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. June 13, 1962 [June 22, 1961], No. 22781/62. Heading F4S. [Also in Division B1] In a heat exchanger e.g. for endo and exothermic chemical reactions with a catalyst, at least one member has a body part 1 composed of sintered elements having a tubular, spherical or other predetermined regular form before sintering, through which a first heat. exchange fluid is caused to traverse and a co-operating thermally conductive wall part 2 in intimate thermal contact with said body part and arranged to separate the heat exchange fluids. The elements may be made of brass, stainless steel, copper or an electric insulating material having a crystalline structure. The elements may be made in the form of circular discs and may be disposed in the wall part in spaced relation, the spaces being occupied by catalytic elements (Fig. 2, not shown). A particular application of this type of heat exchanger when the elements are made of copper is the ortho-para transformation of liquid hydrogen.
Patent GB-1512581-A (GB)
Title: Fire extinguishing powders
IPC: A62D1/00
Filed: 1976-06-02
Abstract: 1512581 Fire extinguishing agent RHONEPOULENC INDUSTRIES 2 June 1976 [4 June 1975] 22783/76 Heading A5A A dry powder fire extinguisher contains as active ingredient a finely divided mixture of a major proportion of ammonium phosphate and up to 20 wt.%, based on the weight of the mixture of an iron, aluminium or magnesium phosphate. The mixture is obtained by neutralizing amide phosphoric acid resulting from the acid treatment of phosphate minerals in fertiliser manufacture with ammonia.
Patent GB-1508640-A (GB)
Title: Push rod type tape recorder operating device
IPC: G11B15/10
Filed: 1975-12-03
Abstract: 1508640 Tape recorder control MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 3 Dec 1975 [10 Dec 1974 17 April 1975] 22824/76 Divided out of 1508639 Heading G5R The description is the same as that in Parent Specification but the claims are directed to the leaf spring arrangement for urging the push rods to their inoperative positions.
Patent GB-587227-A (GB)
Title: Improvements in or relating to apparatus for delivering measured quantities of liquid
IPC: G01F11/28
Filed: 1945-09-05
Abstract: 587,227. Delivering measured quantities of liquid. PELKMAN-MORTON MANUFACTURING CO., Ltd., and MORTON, G. H. Sept. 5, 1945, No. 22860. [Class 106 (v)] . Apparatus for delivering measured quantities of liquid includes two electrodes mounted in a tank, their ends being located respectively at the maximum and minimum levels to be reached by the liquid; the electrodes being included in circuits controlling an inlet and an outlet valve, respectively, which are so connected that they cannot both be in the open position at the same time. Two electrodes 3, 2, extending into a closed tank 1 with their lower ends 4, 5 indicating a maximum and an adjustable minimum level of water to be reached, are included in separate circuits controlling an inlet valve 9 and an outlet valve 10 which valves are so interconnected that they cannot both be in the open position simultaneously. In operation, warm water flows from an inlet pipe 11 until it reaches the lower end 4 of the electrode 3 and causes the valve 9 to be closed. When the outlet valve 10 is opened the level in the tank drops until it reaches the lower end 5 of the electrode 2 which automatically closes the valve 10 which causes the inlet valve 9 to open and the tank to fill again. A mixing valve 12 is included in the inlet pipe and the water in the tank is kept at a uniform temperature by a heater and is agitated by a mixer 25.
Patent GB-478806-A (GB)
Title: Improvements in or relating to tabulating mechanism for typewriting machines
IPC: B41J25/18
Filed: 1937-08-20
Abstract: 478,806. Typewriters. BURGESS, A. F. (Smith & Corona Typewriters, Inc., L. C.) Aug. 20, 1937, No. 22875. [Class 100 (iv)] Tabulating-mechanism.-Column stops consisting of toothed sectors are pivoted at letterspace intervals on the carriage and are selectively moved into operative position or restored by moving in opposite directions a setting- member mounted on the framework. A universal restoring-member for the column stops may be mounted on the carriage. In the mechanism shown in Figs. 1 and 3, a bar 14 secured to the carriage 10 is provided with a rod 19 pivotally supporting column stops 18 which are arranged at letter-space intervals and are guided by slots in the bar. Each column stop can be set in operative or inoperative position, determined by abutments 24, 25, and is retained in set position by a spring- catch 26 having projections for engaging a groove 30 in the bar. Each column stop is formed with a tooth 21 for co-operating with a universal restoring-plate 32, and teeth 22, 23 for co-operating with a setting and restoring finger 43, the tooth 23 being adapted to co-operate also with a tabulating-stop 86. The finger 43 forms part of a bail 41 which is pivoted on a rod 42 on the framework and is connected to a link 45 resting on a spring-urged pivoted plate 64. A setting-key is carried by a bell-crank 65 connected by a link 69 to a bell-crank 70 having a pin 72 which engages a slot 73 in a link 53 secured to the link 45. A restoring-key 76 is carried by a bell-crank 75 connected by a link 79 to a bell-crank 80 having a pin 82 engaging a slot 83 in the link 45. When the carriage is in any letter-space position, the corresponding column stop, if in inoperative position, can be rocked downwards into operative position by depressing the setting- key. On release of the setting-key, the finger 43 and associated parts are restored to normal position by the plate 64, and a spring 74 on the ben-crank 70. If the column stop is in operative position, it can be rocked upwards into inoperative position by depressing the restoring-key 76, and on release of the key, the finger 43 and associated parts are restored to normal position lay a spring 84 on the bellcrank 80. The slot-connections 73, 83 permit either key to be depressed without effect on the other key. The tabulating-stop 86 is pivoted on a pin 51 and is rocked into the path of the stop-teeth 23 by depressing a tabulating- key 92. The plate 32 for restoring all the column stops is secured to a rock-shaft 31 which is mounted on the carriage and is provided with a sector 35 gearing with teeth on a finger-lever 36. On depression of the fingerlever, the plate is rocked and, by co-operation with the teeth 21, moves the operative stops into inoperative position.
Patent GB-720070-A (GB)
Title: An improved apparatus for demonstrating the presence of supernormal radioactive radiation
IPC: G01T7/12
Filed: 1952-09-12
Abstract: 720,070. Detecting radio-activity. LANDIS & GYR AKT.-GES. Sept. 12, 1952 [Sept. 13, 1951], No. 22971/52. Addition to 661,814. Class 40 (3).. In apparatus for demonstrating the presence of supernormal radio-active radiation as claimed in the parent Specification, in which an ionization chamber responsive to radiation feeds integrating means for producing a voltage proportional to said radiation so as to set off a warning device when the voltage exceeds a prearranged value. The ionization chamber is separated from the circuit of the device by a coupling condenser which acts as the integrating means a switch being provided for periodically connecting the insulated electrode to earth. The charge on the condenser drains away rapidly to earth the pulse being reproduced on the grid of an amplifying valve connected to the other condenser plate. A number of ionization chambers each responsive to a different type of radiation may be connected to the grid of an amplifying tube, a switch being arranged to earth each electrode in turn. Each ionization chamber may be associated with a separate amplifying tube, the anodes of all the tubes being arranged in parallel.
Patent GB-986992-A (GB)
Title: Packing unit for shafts
IPC: F16J15/18
Filed: 1963-06-10
Abstract: 986,992. Seals; stuffing-boxes. CHEMICAL CONSTRUCTION CORPORATION. June 10, 1963 [June 28, 1962], No. 22974/63. Heading F2B. A packing unit disposed between a cylindrical shaft 1 and a housing 2 comprises at least two guide rings 5, 8, Fig. 1, each having at least one extension and each extension being directed towards an extension on an adjacent ring and having a central slot and inner and outer peripheral surfaces converging towards the radial surface portion adjacent the slot, a spline ring 13 extending between two of the guide rings and mounted in the central slots thereof, and inner and outer packing rings 7 disposed between the spline ring 13 and respectively the shaft 1 and the housing 2. The rings 5, 8, 13 may be of steel or aluminium and the packing rings 7 may be of neoprene or P.T.F.E. and may have a triangular or circular cross-section. The rings 5, 8 are mounted with a loose fit between the housing and shaft so that, during operation, they are displaced toward each other thereby compressing the rings 7 to provide sealing. Fig. 2 shows a stuffing-box comprising a number of guide rings similar to those of Fig. 1 as well as a composite guide ring 6 having two extensions. All the guide rings except the end ones may have two extensions. Lubrication is provided by oil fed through a passage 10 in the housing and a bleed hole 11 in a ring 9. Specification 428,782 is referred to.
Patent GB-1373481-A (GB)
Title: Workpiece support device
IPC: B23B21/00
Filed: 1973-05-15
Abstract: 1373481 Work supports EX-CELL-O CORP 15 May 1973 [30 Aug 1972] 23051/73 Heading B3B An adjustable work support includes a workengaging pin 33 longitudinally movable in a bore in housing 10 under the action of a spring 44 whose force is adjustable by screw 45. The pin is locked in position by a collet 29 comprising blades 31, Fig. 2, separated by resilient material 30. The collet is operated by bush 25 having cam surfaces 27, 42 acted on by wedge 21 moved in a second bore 11 by screwed member 15, 16. Plate 38 retains the collet in its bore. A dust excluding boot 38 may be provided around the pin 33.
Patent GB-420928-A (GB)
Title: Improvements in or relating to aileron gear for aircraft
IPC: B64C3/54
Filed: 1933-08-19
Abstract: 420,928. Controlling aircraft. BLACKBURN AEROPLANE & MOTOR CO., Ltd., Seaplane Base, BUMPUS, F. A., Elloughton, both in Brough, near Hull, and BOLTON, F., Coldicott, Barrow Lane, Hessle, East Yorkshire. Aug. 19, 1933, No. 23134. [Class 4] In aileron control gear of the type comprising a control column which is pivotally mounted in the cockpit so as to give elevator control when rocked in one direction and differential actuation of the ailerons to obtain lateral control when rocked in another direction, simultaneous adjustment of the ailerons in the same direction is obtained by mechanism contained in or upon the control column without altering the effective length of the control column. The control column 10 is pivoted by a bolt 21 to a fork member 11 forming part of a shaft 12 mounted in a bearing 13 attached to a frame member 14. A bevol wheel 17, operated by a bevel 18 connected to a handle 20, is mounted on a nut 16 supported in a bearing in the column 10, and a screwed rod 15 is operable by the nut to raise or lower a head 22 pivotally connected by links 23, 123, to links 24, 124 which are pivoted to the lower end of the column. The links 24, 124 are connected by tubes 29, 129 to the ailerons. A rod 30 connected to the rod 15 operates an arm 31, Fig. 3, of an indicator 33. Specification 25193/13, [Class 4], is referred to.
Patent GB-155048-A (GB)
Title: Improvements relating to the manufacture of washers, jointing plates and other goods
IPC: C25D5/54
Filed: 1919-09-19
Abstract: 155,048. Cook, G. H. Sept. 19, 1919. No Patent granted (Sealing fee not paid). Washers; materials, special.-Washers, jointing-plates, and other articles are cut, stamped or pressed from asbestos sheeting or other fibrous material, and are coated with metal by electrodeposition. The asbestos may be impregnated with rubber. Other fibrous material may be treated with a salt to render it incombustible. The blanks may be coated with graphite before the metal is deposited. Two metals may be deposited, such as nickel upon copper.
Patent GB-1273293-A (GB)
Title: An improved method for manufacturing rolling bearing components and components manufactured according to the method
IPC: F16C33/42
Filed: 1970-05-13
Abstract: 1,273,293. Making bearing components. SKF INDUSTRIAL TRADING & DEVELOPMENT CO. N.V. 13 May, 1970 [16 May, 1969], No. 23222/70. Heading B3A.  A method of making a rolling bearing cage portion or like annular element comprises winding a metal strip or wire into a helix, removing a convolution therefrom, joining its end portions together to form a ring and pressing the ring to the required shape. The helix has substantially the same diameter as the finished component and the ends of the convolution are welded together under pressure. When using wire, the convolution is pressed flat prior to welding. Loose guide rings for spherical roller bearings and locking rings for other types of rolling bearings may also be made by this method.
Patent GB-645923-A (GB)
Title: Improvements in or relating to apparatus adapted to provide an indication or effect a control, in dependence upon a frequency difference between two electrical oscillatio ns
IPC: G01R23/02
Filed: 1948-09-03
Abstract: 645,923. Frequency measuring. GENERAL ELECTRIC CO., Ltd., and RUTENBERG, A. Sept. 3, 1948, No. 23294. [Class 37] Two frequencies to be compared are applied at 1, 2 to produce two equal, but out-of-phase, beat frequencies which are applied in opposition to windings 11, 12 so that switch 14 oscillates at the beat frequency to provide an indication of the frequency difference or to effect a control. Assuming that the frequencies applied at 1, 2 differ by less than the amount for which an alarm or control is effected, switch 14 makes contact at 16 and actuates slow release relay A which closes its contact A1, but does not actuate relay B since contact C1 is open; switch 14 then changes to contact 17 to operate relay C which closes contact C1, relay B being still inoperative because its circuit is broken at 16; the switch 14 then reverts to 16, but the relay A has now released and its operating time is greater than the release time of relay C so that when it operates, contact C1 is again open. If, now, the beat frequency rises, the frequency of oscillation of 14 increases, so that eventually contact 16 is made when both contacts C1, A1 are closed, and relay B is actuated to lock over contacts B1 and operate an alarm 20 or control over contacts B2. The frequency difference at which this occurs can be adjusted by adjusting the release time of relay A. The difference frequency can be determined by observing the rate of flashing of lamp 22 whose circuit is made and broken by relay C.
Patent GB-1126716-A (GB)
Title: Process and compositions for combatting fungal and bacterial infections
Inventor: POPOFF IVAN CHRISTOFF
IPC: C07D277/74
Filed: 1967-05-19
Abstract: 1,126,716. Bactericidal and fungicidal treatment of seeds. PENNSALT CHEMICALS CORP. 19 May, 1967 [31 May, 1966], No. 23323/67. Heading A2Q. [Also in Division A5] Bactericidal and fungicidal compositions for treating seeds comprise an inert carrier, a surfactant and a benzothiazolyl sulphone of formula wherein R is alkyl or cycloalkyl, and R<SP>1</SP> is H, NO<SP>2</SP>, halogen, amino or alkylamino. The inert carrier may be finely divided attapulgite, bentonite or fullers' earth; or an organic solvent liquid such as xylene, toluene, acetone, diacetone alcohol, dimethylformamide and dimethylacetamide. Compositions containing an organic solvent may be dispersed in water.
Patent GB-517830-A (GB)
Title: Method of preparing quinuclidine and derivatives thereof
IPC: C07D453/02
Filed: 1938-08-08
Abstract: 517,830. Quinuclidine.KASTEL TVORNICA KEMIJSKOFARMACEUTSKIH PROIZVODA D. D., and PRELOG, V. Aug. 8, 1938, No. 23336. Convention date, Aug. 6, 1937. [Classes 2 (ii) and 2 (iii)] Quinuclidine and its derivatives of the general formula are prepared by reacting ammonia with trihalogen derivatives of the general formula where R1 R2 R3R4 each represent hydrogen or an alkyl acyl or carboxyl group and X, Y, Z represent halogen atoms. The action of ammonia takes place at a raised temperature preferably above 100‹C.and in some cases at an elevated pressure. In examples (1) 3-(2- bromo - ethyl) - 1:5 - dibromppentane is heated to 130‹-140‹C. for three hours in an autoclave with a 20 per cent. solution of ammonia in methyl alcohol. The reaction product is distilled, shaken with benzene-sulpho-chloride and caustic soda to remove ammonia and primary and secondary bases, and extracted with ether to give quinuclidine.Similarly 2-ethyl-quinuclidine may be obtained from 3-(2-bromobutyl) 1:5-dibromo pentane; (2) the ester of 1:5-dibromo-pentane-K-bromopropionic acid -3 is heated for six hours to 130‹-140‹C.with a 20 per cent. solution of ammonia in methyl alcohol and the product worked up as in example .(1) to give quinuclidine carboxylic acid -(2). The parent trihalogen compounds may be prepared by the action of hydrohalic acids on compounds of the general formula where U is a group which can easily be replaced by halogen such as hydroxyl, alkoxy or phenoxy, and V is a group which facilitates the introduction of halogen into the molecule in the alpha-position in respect to it such as a carbonyl or a carboxyl group. In example (1) above the parent 3-(2-bromo-ethyl)-1:5-dibromopentane is prepared from 4 - # - hydroxyethyltetrahydropyran by the action of hydrobromic acid for six hours at 100‹-110‹C.In example (2) above the parent material is prepared from tetrahydropyranyl-4-acetic acid. This is converted into its acid chloride with thionyl chloride, then treated with zinc ethyl iodide to give 1-(tetrahydropyranyl-4)-butanone-2 which is reduced by sodium in damp ether to 4-#-hydroxybutyltetrahydropyran. This is then halogenated with hydrobromic acid as above to give 1:5- dibromo-pentane-propionic acid -3 which is brominated with bromine in the presence of red phosphorus to the ester of 1:5-dibromopentonealpha-bromopropionic acid -3.
Patent GB-583741-A (GB)
Title: Improvements relating to the conditioning and heat treatment of wheat
IPC: B02B1/08
Filed: 1944-11-24
Abstract: Wheat is conditioned and tempered by the direct action of steam whereby temperature of the outer layers of the berries reaches between 110 DEG F. and 150 DEG F. in a period up to 10 minutes, followed by immersion of the berries in an aqueous cooling medium such as cold water until their temperature is reducedd to atmospheric after which surface moisture is removed in a whizzer or other machine, the higher temperature limit improving the baking qualities. Specifications 533,221 and 543,720 are referred to.
Patent GB-830389-A (GB)
Title: Manufacture of metal tubes
Inventor: HACKETT WALTER
IPC: B21C23/01
Filed: 1958-07-22
Abstract: 830,389. Making multi-bore seamless tubes; extruding. T.I. (GROUP SERVICES) Ltd. July 22, 1958, No. 23478/58. Addition to 700,812. Classes 83 (2) and 83 (4). A method of forming a multi-bore seamless tube being a modification of the method of making a metal tube as disclosed in the parent Specification, is characterized in that a plurality of longitudinal bores are formed in a billet of e.g. chrome nickel steel and an austenitic core is placed in each bore, the combined billet and cores being reduced in diameter by hot or cold extrusion and the cores subsequently removed. The billet may be circular, elliptical, rectangular or other cross-section. The bores may be formed by drilling or the billet may be cast around the cores. Alternatively, a multibore billet is initially formed by extrusion, the cores being subsequently inserted in the bores.