baber/WOPTO huggingface dataset:
Patent GB-641239-A (GB)
Title: Improvements in or relating to compounds containing a thiophene nucleus and process for the production thereof
Filed: 1947-04-22
Abstract: Compounds containing a thiophene nucleus are produced by reacting an organic compound containing an aliphatic chain of 2 or 3 carbon atoms with a sulphur oxide in the vapour phase, in the presence of metal and metalloid oxide or sulphide catalysts as in the parent Specification, at a temperature of at least 700 DEG  F., and a space velocity of 0.2-10.  Conditions are otherwise generally as described in the parent Specification.  In examples: (1) ethylene and sulphur dioxide in a molar ratio of 1 : 0.73 are passed over silica gel at 1200 DEG  F. with a space velocity of 1.21 weights of ethylene per hour per weight of catalyst to give thiophene; (2) ethane and sulphur dioxide in molar ratio 1 : 1.9 are charged to a fluidized catalyst bed of 10 per cent chromia-alumina at 1400 DEG  F. with a space velocity of 0.4 weights ethane per hour per weight of catalyst; (3) ethylbenzene and sulphur dioxide in molar ratio 1 : 1.5 are passed over 10 per cent chromia-alumina at 1100 DEG  F. with a space velocity of 0.9 vols. ethylbenzene per hour per vol. of catalyst, benzothiophene being recovered.  The Specification as open to inspection under Sect. 91 comprises the reaction of compounds containing an aliphatic chain of at least 2 carbon atoms and specifies those having such a chain of 4 or more carbon atoms as described in the parent Specification. Additional examples relate to pentene-1, butene-2, isopentane and 2.3-dimethylbutane.  This subject-matter does not appear in the Specification as accepted.
Patent GB-233871-A (GB)
Title: Improvements in coin-freed gas meters
IPC: G07F15/02
Filed: 1924-05-01
Abstract: 233,871. Metropolitan Gas Meters, Ltd., and Forster, J. D. May 1, 1924. Coin action, mechanical-connection; fraud, preventing.-Relates to coin-freed gas meters of the kind in which the coin engages in a slot in a tumbler disc rotated by an outside handle and between side teeth of a measuring-out disc, a box or guide being provided on the tumbler disc to direct the coin and prevent the measuring-out disc from being fraudulently rotated without rotating the tumbler disc. According to the invention, the box p, Figs. 3 and 5, is of U-form and is connected to the tumbler disc a by divergent extensions r. A slot q is formed in the box to allow it to embrace the ring of side teeth k on the measuring-out disc j. A coin engages between two adjacent teeth k and in a slot b in the disc a. It rests on a pin t projecting from the plate a. The end of the pin t is bevelled at u which causes a small coin to fall off sideways before it reaches the teeth k.
Patent GB-778368-A (GB)
Title: Improvements in and relating to hot rolling and sintering of metal powder
IPC: B22F3/18
Filed: 1955-04-14
Abstract: 778,368. Making metal strip, bars, &c., powder metallurgy. MANNESMANN AKT.- GES., and CHEMETALS CORPORATION. April 14, 1955 [April 15, 1954], No. 10778/55. Classes 83 (2) and 83 (4). Rolling; working at specified temperatures. In a method of forming rod, strip, &c., from precipitated metal powder, a self-sustaining bar formed by partially sintering the powder is compressed by rolling, in two stages to the required density. In an example, copper powder 3 formed by a precipitation method from a salt solution is fed by a continuous belt 4 through sintering furnaces 8, 10 which partially sinter the powder before it is compressed by roll 11 to complete the consolidation. The wet powder fed from a centrifuge 1 over a drier 2 is smoothed to uniform thickness by rolls 7 and heated to 300-600‹ C. in a furnace 8. The bar then passes through rolls 9 where the first consolidation takes place. The bar is then heated to 700-1050‹ C. in a second furnace 10 from which it passes directly into the rolls 11. The furnaces 8 and 10 may be totally enclosed by a jacket 17 containing an inert atmosphere or the furnaces may be interconnected to form a single furnace and the rolls 9 placed inside. The finished bar may leave the rolls 11 through a cooling chamber 12 or may be fed through a furnace at 800-1050‹ C. and rolled to effect further consolidation,
Patent GB-729044-A (GB)
Title: Rotary pumps
IPC: F04B43/14
Filed: 1952-04-30
Abstract: 729,044. Flexible-tube pumps. GRANT, V. D., and PRINCE, C. A. July 28, 1953 [April 30, 1952], No. 10849/52. Class 110 (2). A rotary pump comprises a housing a having a pair of intersecting cylindrical chambers b, a lining f made of an abrasive resistant flexible material, such as rubber, and a pair of impellers h contained within said lining. Each impeller carries rollers i which may be formed cylindrical throughout their lengths or are provided with frusto-conical or rounded ends. Each impeller is mounted on a spindle j and each spindle carries a gear wheel which is situated at the outer side of one of the end covers of the housing and is enclosed, if so desired, by another cover. The housing has an inlet c and an outlet d. The lining is provided with end flanges which are clamped between the housing a and its end covers.
Patent GB-678802-A (GB)
Title: Improvements in or relating to electrical condensers
Inventor: HILTON ROY
IPC: H01G4/224
Filed: 1951-05-09
Abstract: 678,802. Electric condensers. STANDARD TELEPHONES & CABLES, Ltd. May 9, 1951, No. 10867/51. Class 37. A condenser for direct attachment to one or more pins of a valve base comprises a stack of annular plates 1 having a central aperture large enough to' accommodate the pins without touching them, and one terminal end plate 5 so shaped, Fig. 3, as to contact selected pins. The annular plates 1 of e.g. mica are silvered at 2, 3, the coatings extending over each edge, so that the end plate 5 with its depending lip 4 when placed over the staple makes contact with the coatings 3; the lip 4 is pressed over an insulating disc 6 to hold the stack together, and an outer case 7 makes contact with the coatings 2, being bent over the assembly as shown in Fig. 2. The selected pins may be soldered to the end plate 5.
Patent GB-658238-A (GB)
Title: Improvements in or relating to supporting stands for knitwear linking machines
IPC: D05B7/00
Filed: 1947-11-04
Abstract: 658,238. Sewing-machines. SAVORY, F. R. Nov. 4, 1947, No. 10971. Divided out of 658,181. [Class 112] [Also in Group XXIV] Stands; driving.-A sewing-machine, particularly a linking-machine, is adjustably mounted on its support; driving means for the machine may also be adjustably mounted. In the arrangement shown, the base 3 of the machine is hinged to the top of the supporting pillar 1 by a bolt 7 at one edge and is adjustably secured at the opposite edge by slotted lugs engaged by a' bolt 6. A driving motor 14 is carried by a vertical base 19 hinged to the pillar at 18 and secured adjustably by slotted lugs engaging the bolt 7. Specification 658,181, [Group XXIV], is referred to.
Patent GB-1170164-A (GB)
Title: Complexes of Benzothiazolium Compounds and process for the production thereof
Inventor: REIFSCHNEIDER WALTER
IPC: C07D277/66
Filed: 1967-03-08
Abstract: 1,170,164. Insecticidal and anti-parasitic compositions. DOW CHEMICAL CO. 8 March, 1967 [11 March, 1966 (2)], No. 10977/67. Headings A5B and A5E. {Also in Division C2] Compositions which are useful as insecticides and in the treatment of internal parasites in animals comprise a complex of (A) a benzothiazolium compound of the formula wherein X is a pharmaceutically acceptable anion; each R independently is hydrogen, C 1-4  alkyl, C 1-4  alkoxy, bromine or chlorine; R<SP>1</SP> is C 1-4  alkyl having a -CH 2 - group at the point of attachment; each R<SP>11</SP> independently is hydrogen or C 1-4  alkyl having a -CH 2 - group at the point of attachment; each R<SP>111</SP> independently is hydrogen, chlorine, methoxy or methyl; and m is an integer equal to the valence of the anion X; and (B) a metal salt compound of the formula MaYb, wherein M is Cu+, Cu<SP>++</SP>, Fe<SP>++</SP>, Fe<SP>+++</SP>, Fe<SP>+++</SP>, Sb<SP>+++</SP>, Bi<SP>+++</SP>, Sn<SP>++</SP>, Mn<SP>++</SP> ,Zn<SP>++</SP> or Cd<SP>++</SP>; Y is a pharmaceutically acceptable anion; and each of a and b is an integer such that (a times the valence of M) is equal to (b times the valence of Y); in admixture with a finely divided solid, an animal food or a surface active agent.
Patent GB-142109-A (GB)
Title: Improvements in and relating to film end fasteners for motion picture film reels
IPC: G03B21/32
Filed: 1920-04-20
Abstract: 142,109. Walker, M. F. Sept. 25, 1918, [Convention date]. Feeding webs.-An end fastener is provided by an expanding rim which frictionally holds the film against the inside surface of the spool hub, formed with slots to allow insertion of the film end. In the form shown in Fig. 2, the webs 2 retain the expanding ring 3 and grip the film end. The ring 3 has a groove and tongue joint. In the form shown in Fig. 3, a broad overlapping spring 8 is used with one end fixed by a bolt 7.
Patent GB-1180446-A (GB)
Title: Atomic Absorption Spectrophotometry
Inventor: LING CLEMENT
IPC: G01N21/31
Filed: 1967-03-09
Abstract: 1,180,446. Photo-electric absorption analysis. KODAK (AUSTRALASIA) PTY. Ltd. March 9, 1967 [March 9, 1966; Oct.7, 1966], No.11063/67. Heading G1A. Apparatus for determining the atomic absorption due to an element in a gaseous sample, comprises a first source capable of emitting monochromatic light of frequency substantially equal to the resonance frequency of the element, a second source capable of emitting light having such a frequency distribution of energy that its total intensity within a detection frequency range is not sensibly attenuated by the atomic absorption and is attenuated by the non-atomic absorption to substantially the same extent as is the intensity of the light of the first source, the total intensities of the respective sources within the detection range being substantially equal, means for passing radiation from the source through the sample simultaneously or alternately according to a predetermined time schedule, and detecting means for comparing the intensities of the sources with that of the transmitted light and deriving therefrom a measure of the atomic absorption in the sample. For detecting mercury atoms in the presence of acetone or xylene in the chamber 5, Fig.1, the first source is a mercury resonance lamp 7 emitting the 2537 Š mercury line. The second source is a mercury resonance lamp 14 the emission lines of which are broadened by the adddition of argon, the actual resonance line being supressed by a filter 16 comprising mercury vapour and nitrogen. The resonance lamps 7, 14 are energized alternately by a low-pressure mercury lamp or lamps 8, 12, by means of complementery shutters 11, 15. The intensity of the first source is initially adjusted by an attenuator 9 to equality with the first source so that with no mercury vapour in chamber 5, an A.C. amplifier connected to the photo-multiplier 17 gives a zero output. A servo circuit may be provided to adjust the gain of the photo-multiplier to keep the signal from the source 14 at a given level: the A.C. signal then indicates the per cent of absorption due to the mercury directly. In another embodiment, Fig.2, the first source 19 is a mercury arc lamp and the second a hydrogen lamp producing a continuous spectrum. Light from each lamp is alternately directed through the sample chamber 26 by a mirror-chopper 24. In modifications, the mirror-chopper is replaced by a semi-transparent mirror or a plane or curved mirror with a central aperture and the beams a chopped by a single chopper intersecting both beams, Fig.3 (not shown). Alternatively separate choppers may be provided, Fig.4 (not shown), to chop the beams at different frequencies, the signals due to the two beams being separated by tuned amplifiers. A combined source emitting the 2536À5 A Hg line at one frequency and the 2536À0 A Co line at another frequency may be used in place of the separate sources and choppers.
Patent GB-596674-A (GB)
Title: Improvements in or relating to the scavenging of the cylinders of two-stroke internal combustion engines
IPC: F02B25/18
Filed: 1945-05-02
Abstract: 596,674. Cylinders. SOC. ANON. ETABLISSEMENTS TERROT. May 2, 1945. No. 11072. Convention date, Aug. 23, 1943. [Class 7 (ii)] In a two-stroke engine having crank case compression, two transfer passages 7 open into the cylinder on one side ofa diametral plane BB and the charge is deflected by a star-shaped deflector 11 on the piston to flow as indicated by the arrows and to be deflected into two exhaust ports 6.
Patent GB-246357-A (GB)
Title: Improvements in and relating to signalling devices for use with automobiles
IPC: B60Q1/34
Filed: 1925-04-29
Abstract: 246,357. Bertolotto, L. April 29, 1925. Road-traffic signals on vehicles; semaphore signals. - An indicating device for automobiles for displaying signals to following vehicles comprises a casing 1, Figs. 1 and 2, mounted on the rear of the automobile, and provided with two signal arms 3, 3<1> which are normally superposed and are adapted to be moved outwardly for signalling purposes. The arms 3, 3<1> are provided with racks which are engaged by toothed wheels 4, 4<1> on shafts 5, 5<1>. These shafts are rotated by the driver at will by means of wire cables 8, 8' connected to toothed segments 7, 7<1> engaging toothed wheels 6, 6<1> on the shafts 5, 5<1> which are spring-controlled to return the signals automatically when released. The operating device at the driver's seat comprises a casing 14, Fig. 5, on the shaft 16 of which are mounted two bifurcated arms. 19 to each of which the wire cable for the appropriate signal is secured. Rotatably mounted on the shaft 16 are three levers 17, 18, the levers 17 being provided with projections to engage the appropriate bifurcated arm 19 while the lever 18 is provided with a cross-bar 22 adapted to engage both bifurcated arms and so work both signals simultaneously.
Patent GB-1426814-A (GB)
Title: Bethod and device for manufacturing thermo plastic bags in a continuous way
IPC: B29C65/02
Filed: 1973-03-07
Abstract: 1426814 Seaming non-metallic sheet material WAVIN BV 7 March 1973 [15 March 1972] 11212/73 Heading B5K In the manufacture of thermoplastic bags, longitudinally spaced transverse seals are made in a tubular thermoplastic film 3 by feeding the film 3 longitudinally in a substantially untensioned condition past a heating member 10 to plasticize the film in zones where the transverse seals are to be formed and passing the film 3, after leaving the member 10, between two pressure rollers 12, 13 to effect sealing. The film 3 is fed from a roll 1 bearing on rotatable rubber rollers 2 by driven rollers 4. Transverse perforations are made by a rotatable drum 5 having projections thereon and cooperating with a backing roller 6. The sealing members 10 are mounted in a metal surface drum 8 and are thermally insulated therefrom. Preferably, each member 10 is made of copper covered with polytetrafluoroethylene. Foam rubber rollers 7, 9 maintain the film 3 in contact with the roller 8 but do not compress it thereagainst. The roller 12 is provided with a cooling spiral 18 and a lever 19 is provided to press the roller 13 against the roller 12. The rollers 4 rotate slightly faster than the rollers 12, 13 so that the film 3 is not tensioned as it passes around the drum 8. A tension roller 20 acted on by a spring 21 draws the film slippingly from between the rollers 12, 13 and then the film passes between rollers 14, 15 driven at the same speed as the rollers 4. Subsequently, the film 3 passes through a printing machine 18a, is doubled longitudinally by a folding triangle 16 and is wound on a device 17.
Patent GB-145211-A (GB)
Title: Improvements in padlocks
IPC: E05B67/10
Filed: 1919-05-06
Abstract: 145,211. Batter, S., and Bucknall, W. May 6, 1919. Padlocks.-A single spring D is passed round two stumps or equivalent parts, and its free ends press upon suitable abutments so as both to hold the bolt B in engagement with the shackle C in the locked position, and also to throw out the latter when released. The spring is preferably taken round a stump E placed above the bolt, and also coiled upon a pin or sleeve E<1> which may form or surround the shackle pivot, so that the end c<2> lies in a recess c<3>, one edge of which forms the heel upon which the spring acts
Patent GB-854107-A (GB)
Title: Improvements in or relating to portable showcases
Inventor: TURNER CHARLES
IPC: G09F5/02
Filed: 1957-04-08
Abstract: 854,107. Displaying. POTTERTON Ltd., A. May 19, 1958 [April 8, 1957], No. 11330/57. Class 3(2) [Also in Groups XVII and XXV] Sample retaining means, in or for a portable showcase for footwear, comprises a cross-bar 19 adapted to engage the heelward under part of a sample S and a resilient strap or band 22 for detachably holding the sample S in place and adapted to urge the heelward end of the sample S downwardly and forwardly into firm engagement with the cross-bar 19. The strap 22, formed as an elastic band covered with fabric, is provided with a hook or clip 23, which may be made of bent wire, to engage over the top edge of the sample S to hold it firmly in place and the ends of the strap 22 are secured in a groove 25 in the cross-bar .19. The strap 22 may be provided with a smooth leather tab 26 to bear against the back face of the upper of the shoe and the tab forms a pocket 26a into which the ends of the clip 23 are inserted. A finger loop 24 is also provided and is connected to clip 23 by means of a bent wire 27. For a shoe with no heel projection an abutment for the toe end of the shoe to bear against is' provided. The sample retaining means may be provided in a display tray in rows, each sample having its own strap, or they may be provided in a portable suitcase, Fig. 2, comprising two trays 10 and 11 hinged so that they can be separated when the case is open and projecting parts 17 and 18 of the lid 11 engage the walls of the base 10 preventing disengagement of the hinges when the case is closed.
Patent GB-883255-A (GB)
Title: Preparation of chloro-substituted gamma-phenoxy butyric acids
IPC: C07C59/68
Filed: 1959-04-03
Abstract: A process for preparing g -phenoxybutyric acids having a chlorine substituent in the 4-position and either a methyl or chlorine substituent in the 2-position comprises chlorinating g -2-methylphenoxybutyric acid with between 1.0 and 1.2 gram-molecules of chlorine per gram-molecule of g -2-methyl phenoxybutyric acid or chlorinating g -phenoxybutyric acid with between 2.0 and 2.3 gram-molecules of chlorine per gram-molecule of g -phenoxybutyric acid respectively, the respective phenoxybutyric acids being maintained in aqueous suspension during the reaction.  Preferably temperatures above 90 DEG C. are employed to obtain a molten product. Examples are furnished.  g -phenoxybutyric acid is obtainzd by reacting butyrolactone with sodium phenate in the presence of o-dichloro-benzene.  g -2-methylphenoxybutyric acid is similarly prepared from o-cresol.  Reference has been directed by the Comptroller to Specification 758,980.
Patent GB-782505-A (GB)
Title: Improvements in or relating to control apparatus for heating and cooling systems
IPC: G05D23/275
Filed: 1954-04-21
Abstract: 782,505. Electric control systems. McGLASHEN, R. April 18, 1955 [April 21, 1954], No. 11456/54. Drawings to Specification. Class 38 (4). In a control system for the power supply to a hot or cold storage installation for a building or the like, of the kind in which control is to some extent dependent on. outside temperature. and wherein power input to the installation is confined to " off-peak " periods of the power source by means of a time switch, the instant at which power supply commences after connection of the source by the time switch. is determined by a thermal switch, responsive to outside temperature and the setting of which is continuously advanced by a cam during the " off-peak " period. The commencement of power intake is thus delayed in relation to. the commencement of the " off-peak " period to an extent dependent upon the amount by which outside temperature differs from a predetermined -value, the delay being infinitely variable over a temperature range extending from the predetermined value. In order to synchronize the commencement of the delay period with the operation of the time switch, the cam may be driven by the same mechanism as drives the switch, or the cam may be driven by an electric motor which is controlled by the time switch.
Patent GB-1504687-A (GB)
Title: Portable equipment particularly applicable to a weighing machine for animals
IPC: G01G17/08
Filed: 1975-06-13
Abstract: 1504687 On and off castors POLDENVALE Ltd 13 June 1975 [14 March 1974] 11497/74 Heading A4U [Also in Divisions B7 and G1] The wheels 18 of a portable animal weighing machine are moved from a retracted position to a ground engaging position when the handles 24 are raised from a depending position to an extended position by means of links 28.
Patent GB-1496390-A (GB)
Title: Device for electrically insulating a railway rail from parts securing it
IPC: E01B9/30
Filed: 1976-06-21
Abstract: 1496390 Securing rails to sleepers PANDROL Ltd 21 June 1976 [19 March 1975] 11521/75 Heading E1G An insulator for use between the base of a flange-footed railway rail and a rail fastener which bears down on the top of the rail flange comprises a first portion 5 interposed between the rail flange I and the rail fastener 9, a second portion 6 between the side of the rail flange and the anchoring member 13 of the fastener which limits transverse movement of the rail, and two lugs 24 on opposite sides of the anchoring member to limit movement of the insulator along the rail. The insulator is made by placing a metallic member in a mould and injecting into the mould a hardenable material which is allowed to harden before removal from the mould. The metallic member is preferably completely covered by the insulating material except for the portion which is in contact with the rail fastener 9.
Patent GB-892925-A (GB)
Title: Improvements relating to railway vehicle shock absorbers
Inventor: TERRY DOUGLAS PHILIP
IPC: F16F13/06
Filed: 1959-04-06
Abstract: 892,925. Railway vehicle buffers. DOWTY HYDRAULIC UNITS Ltd. July 1, 1960 [April 6, 1959], No. 11618/59. Class 103(5). A buffer which may include a hydraulic arrangement, comprises telescopic components 10, 12 with a helical coil spring between them and a plug 22 of elastomeric material lying within the coil, the plug being laterally expansible during buffer compression into progessively increasing contact with the inner surface of the coil.
Patent GB-1134622-A (GB)
Title: Improvements in and relating to filtration of gases
IPC: B01D46/04
Filed: 1965-03-19
Abstract: 1,134,622. Wet dust-filter. G. STEINTVEIT. 6 April, 1966 [19 March, 1965], No. 11657/65. Heading B1R. Apparatus for removing entrained particles from a gas comprises at least one upright bag filter, the or each-bag filter being closed at its upper end and open at its lower end and irrigated with liquid. As shown in Figure 1 a number of bag filters 12 are traversed by the gas to be filtered in parallel and liquid is supplied to the interior of each bag.