baber/WOPTO huggingface dataset:
Patent GB-881408-A (GB)
Title: Dithia-tetrahydro-isoindolenines
IPC: C07D209/44
Filed: 1958-03-18
Abstract: The invention comprises dithia-tetrahydroisoindolenines of the general formula <FORM:0881408/IV (b)/1> or the tautomeric imino form, wherein X and Y represent alkoxy groups, which may contain -OH and/or acetate substituents, or X and Y together stand for an imino group, and R represents a lower alkyl or aryl radical.  The invention also comprises the preparation of the above compounds by reacting 1,2-dicyano-3,6-dithiacyclohexene-(1) or an alkyl or aryl derivative thereof with an alcohol and/or ammonia.  The reaction with ammonia may be carried out in the presence of a solvent such as methanol, ethanol, ethylene glycol, or formamide, and of a catalyst such as an alkali metal hydroxide, amide or alcoholate, or a heavy metal salt. In an alternative process, the 1,2-dicyano-3,6-dithia-cyclohexene-(1) is first reacted with hydrogen halide, and the addition product so obtained is then reacted with ammonia.  In Example 1, methanolic ammonia and 1,2-dicyano-3,6-dithia-cyclohexene-(1) are stirred together at room temperature for a week.  Yellow crystals of 1-amino-3-imino-4,7-dithia - 4,5,6,7 - tetrahydro - isoindolenine crystallise out, and are filtered off.  The residual isoindolenine remaining in the solution may be precipitated as a red nitrate by mixing it with an aqueous solution of ammonium nitrate acidified with acetic acid.  In the second part of Example 3, ethylene glycol is reacted with 1,2-dicyano-3,6-dithia-cyclohexene-(1) in the presence of sodium methylate.  Acetone is then added whereupon 1 - amino - 3, 3 - bis (b  - hydroxyethoxy) - 4, 7 - dithia - 4,5,6,7 - tetrahydro - isoindolenine is precipitated.  This compound is converted into the monoacetyl derivative by boiling it in acetic anhydride.  In Example 5, a solution of hydrogen bromide in glacial acetic acid is reacted with 1,2 - dicyano - 3,6 - dithiacyclohexene - (1); and a yellow adduct crystallizes out. This is filtered off, and reacted with methanolic ammonia to give a brownish-red powder having the approximate formula (C6H7N3S2)+HBr.  Example 6 describes the preparation of 1,3-di-imino-5-methyl - 4,7 - dithia - 4,5,6,7 - tetrahydro - isoindolenine by reacting 1,2-dicyano-4-methyl-3,6-dithia-cyclohexene-(1) with ammonia. Example 7 describes the preparation of 1-amino-3-imino - 5 - phenyl - 4,7 - dithia - 4,5,6,7 tetrahydro-isoindolenine by first reacting 1,2-dicyano-4-phenyl-3,6-dithia-cyclohexene-(1) with hydrogen bromide, and then reacting the adduct with methanolic ammonia. Specifications 698,049, 768,964, 881,409 and 881,410 are referred to.
Patent GB-702770-A (GB)
Title: Liquid fuel injection nozzles
Inventor: BARRINGTON RALPH
IPC: F23D11/28
Filed: 1951-04-16
Abstract: 702,770. Liquid-fuel burners. LUCAS (INDUSTRIES), Ltd., J. April 9, 1952 [April 16, 1951], No. 8778/51. Class 75 (1) In a liquid-fuel injection nozzle of the spill type the fuel passes from the swirl chamber f to the return pipe b through helically or otherwise curved peripheral passages n in a plug m fitting in a central aperture in a place c at the rear end of the swirl chamber f. To prevent the passage of air into the return pipe b the plug m has a forwardly extending axial projection o determining the position of the inner end of the air core formed in the swirlling fuel in the chamber f. The fuel is introduced into the chamber f through holes j in the plate c, holes i in a plate d, and swirl passages k.
Patent GB-723031-A (GB)
Title: Improvements in or relating to hats
IPC: A42B1/16
Filed: 1952-04-07
Abstract: 723,031. Securing hats to the head. MOLLER, A. H. Jan. 21, 1953 [April 7, 1952], No. 8833/52. Class 63. A head-gripping device incorporated with or for use in the construction of hats comprises two or more springy C-shaped members capable of obtaining a grip on the head of the wearer at positions one in front of the other, each member A, B comprising a strip 1 of vulcanized fibre, thin cardboard &c. to which a blade spring 3 is attached as by rivets 4, 4a, and the members being enclosed in a flexible housing. Each member has a laterally projecting ear 2 which overlaps the adjacent end of the other member: the members may be pivoted together by the rivets 4, 4a. The members are encased individually in flexible sleeves, the ends of which intercommunicat laterally. The sleeves are closed at each end and their adjacent cut-away lateral edges are stitched at 7 on the outer face of the device but are left open on the inner face to provide entrance for the members A and B.
Patent GB-977022-A (GB)
Title: Improvements relating to fuzes for projectiles
IPC: F42C15/36
Filed: 1961-03-10
Abstract: 977,022. Projectile fuzes. BOFORS A B. March 10, 1961 [April 2, 1960], No. 8846/61. Heading F3A. A projectile fuze provided with self-destruction means and operating on direct or oblique impact has a two-part casing 1, 2 arranged to separate on oblique impact as in Specification 782,257, a frictionally ignited composition 21 being placed in the zone of separation near a channel 20 which can conduct flash from the composition to a detonator 17 at the rear of the fuze. An extension of the part 2 is screwed into the nose part 1 and houses a sleeve supporting a combustible plug, which separates a push-rod 10 from a spring-stressed striker 12 locked in position by upset portions 14 of a surrounding sleeve 15. A firing pin integral with the striker extends into a rotor 16 housing the detonator 17. A flash passage 20 leads from the rotor 16 to a channel housing a delay composition 19. On firing a projectile into which the fuze has been screwed, a primer 5, housed in a bore parallel to the push-rod 10, sets back against its supporting spring 6 and hits a pin 7, the resultant-flash passing through a channel 8 to ignite the plug 11 and also ignites the delay 19. When the plug 11 has burnt away and the projectile decelerates, the spring 13 forces the striker 12 against the rod, so releasing the rotor and arming the fuze for operation on impact, the rotor when freed having rotated due to centrifugal force until the detonator is aligned with the firing pin. If impact does not occur within a given time, the delay 19 fires the detonator 17. If impact is oblique, the nose 1 breaks off in the region of packing 4 and the composition 21 ignites. The flash therefrom breaks through the wall of the passage 20 arid fires the detonator 17.
Patent GB-109787-A (GB)
Title: Improvements in Apparatus for Charging Cylindrical Objects, Ingots, or the like, into Furnaces or Ovens.
Inventor: RENAULT LOUIS
IPC: B23Q7/10
Filed: 1917-06-20
Abstract: 109,787. Renault. Sept. 12. 1916, [Convention date]. Feeding cylindrical articles.-An apparatus for feeding cylindrical articles such as shells, into and through a furnace or oven, consists of a reciprocating block F operating at the base of a vertical shoot C, the block having two nosepieces H, H<1> of different lengths, the lower and longer serving to advance the series of articles in the furnace, while the upper displaces the lowermost article in the shoot from the supporting shelf E. As the block is withdrawn the article displaced from the shelf falls into position at the end of the line on the hearth. The block is suspended from a lever G and is operated through a system of levers and links from the opposite end of the furnace. The hearth is slightly inclined, free rolling of the ingots is prevented by a sill at the discharge end.
Patent GB-1138446-A (GB)
Title: Process and apparatus for the evacuation of low-pressure gas discharge devices, for example fluorescent lamps
IPC: H01J9/38
Filed: 1966-03-01
Abstract: 1,138,446. Evacuating discharge lamps. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG. 1 March, 1966 [1 March, 1965], No. 9019/66. Heading H1J. In a process for evacuating low pressure gas discharge devices, such as fluorescent lamps, a plurality of devices are pumped on a multiposition machine to a final pressure between 10<SP>-3</SP> Torr and 1 Torr, being connected to one or more vacuum chambers on the machine, a partial pressure of impurities below 10<SP>-4</SP> Torr being ensured by repeated flushing with inert and/or noble gas and/or mercury vapour, which is supplied during the flushing from a filling system at a pressure of 1 atmosphere for a time which is short relative to the complete evacuation cycle. The device 1 is connected by an exhaust tube 2 to a T-joint 4, one branch of which carries a mercury dispenser 3 and the other is connected by way of a non-return valve 5 to the moving disc 6 of a disc valve 8 connected through vacuum chambers 10, 10<SP>1</SP> to a number of pumps 9. The mercury dispensing is operated by electromagnets having contact faces which make contact with fixed contacts on the machine at intervals during rotation.
Patent GB-557300-A (GB)
Title: Improvements in and relating to thread control mechanism for weft replenishing looms
IPC: D03D45/50
Filed: 1942-07-01
Abstract: 557,300. Looms with automatic weft replenishment. CROMPTON & KNOWLES LOOM WORKS. July 1, 1942, No. 9094. Convention date, Jan. 28. [Class 142 (iii)] A cutting device 50 operated at each stroke of the lay is provided for cutting the end of the weft W<SP>1</SP> of a bobbin rejected and allowed to fall from the magazine M. The weft end W<SP>1</SP>, with the ends of the other wefts W of bobbins contained in the magazine, is held by a pneumatic or other thread holder 37. The cutting device is mounted upon the thread holder and comprises a fixed blade 51 and a blade 52 operated by a rod 60 having an abutment 65 engaging a clip 62 mounted upon the lay. The cutting device 50 is mounted below the zone Z of the threads extending from the reserve bobbins in the magazine to the holder so that only rejected wefts can be cut. A safety guard in the form of a V- shaped wire is arranged above the cutting device to protect the fingers of the operator when weft ends are held adjacent the weft holder. Specifications 19241/09, [Class 142 (iii)], and 363,240 and U.S.A Specifications 1,336,950 and 1,652,604 are referred to'
Patent GB-945098-A (GB)
Title: Improvements in apparatus for wet screening of solid particles
IPC: B01D35/26
Filed: 1961-03-13
Abstract: 945,098. Filters. STAMICARBON N.V. March 13, 1962 [March 13, 1961], No. 9116/61. Addition to 791,520. Heading B1D. Liquid containing solids in suspension issues under pressure from the peripheral outlet 4 of a rotary pump 1 having an axial inlet 3 and is directed along the concave surface of a spiral screening deck 5 at least partly surrounding the pump and which has interwoven with it an imperforate plate 6 which forms a space 8 having closed sides and an open end 9 through which coarse separated solids are discharged ; the space formed between the convex surface of the deck 5 and the concave surface of the plate 6 being divided by axial partitions 12 to form open-sided compartments into and from which liquid containing fine solids enter and are discharged. As shown, the deck 5 comprises spaced bars extending axially but in a modification the screen comprises a perforated plate as disclosed in Specification 791,857. Specification 796,448 also is referred to.
Patent GB-363576-A (GB)
Title: Improvements relating to devices for fixing roof plates or the like in position
IPC: E04D3/36
Filed: 1931-03-25
Abstract: 363,576. Roofing. WAGNER, M., Rue de la Republique, Pfastatt, near Mulhouse, France. March 25, 1931, No. 9159. Convention date, April 1, 1930. [Class 20 (iv).] A fixing device for roofing sheets comprises an articulated hook d, g at least one of the eyes of which is clongated so as to permit relative movement to allow for the irregularities . in the spacing of the purlins c. The member d of the device may be secured to a wooden purlin by spikes e, f, or its lower end may be hooked to engage the lower flange of an I-section metal purlin, the upper part of the member being held in the upper flange of the purlin by a sheet of metal. The nut l is formed with a downwardly directed flange l<1> and raised sleeve l<2> and has a conical seating on a collar m<1> which is flanged at m to engage the surface of the roofing sheet. Any water which drips from the nut is caught by the reduced upper end of a sleeve n<1> and is conveyed out between the sheets, which are spaced slightly apart by bosses n<2> on the flange of the sleeve n<1>.
Patent GB-755877-A (GB)
Title: Apparatus for wet-treating textile materials
IPC: D06B5/00
Filed: 1954-03-29
Abstract: <PICT:0755877/IV(c)/1> <PICT:0755877/IV(c)/2> In apparatus for wet processing textile materials with liquid at a high temperature (e.g. in excess of 100 DEG C.), comprising a closed circulatory system wherein the liquid is cycled by a pump through a closed treatment vat and an expansion chamber in series, the production of bubbles of steam within the liquid and the consequent turbulence are avoided by placing the expansion vat which is sealed and contains a volume of steam above the liquid therein, at the highest point in the system, arranging that the liquid has its highest temperature where it enters the expansion chamber, and connecting the discharge side of the expansion chamber directly to the suction side of the pump. Consequently since the steam pressure in the expansion chamber corresponds to the greatest temperature in the system, and the pressure everywhere else in the system must be greater than this, the vapour pressure of the liquid at all other points in the system is insufficient to cause the production of vapour within the liquid. Fig. 1 shows an arrangement wherein the liquid circulated by the pump 1 may be reversed in its direction through the vat 3 by means of change-over valve 2 and thereafter passes through a heating chamber 11 before being sprayed by the nozzles 7 into the expansion chamber 5 which communicates via its outlet pipe 8, with the suction side of the pump 1.  In a modification, the heating device is arranged within the chamber 5 in such a position that the liquid entering the chamber splashes over it.  In a second embodiment, Fig. 2, employing a vat 3 wherein the direction of the liquid flow is radial, the liquid leaving the vat enters the expansion chamber 5 through an enlarged section of pipe 9 to reduce the velocity of flow and is heated by heated elements 11 at its entrance into the chamber.  The liquid flows over, or through ports in, a partition 10 before leaving the expansion chamber via the outlet pipe 8.  A conduit 21 connected to the steam space within the chamber 6 controls a valve 22 in the line supplying the heating medium to the elements 11 so that the supply of heat of the liquid is controlled in accordance with the steam pressure. Dye-supply tank 12 and funnel 15 are shown for supplying additional medium as desired to the circulatory system.  A sampling vat 16 connected in parallel with the main vat 3 and suitably valved is provided to enable the progress of the treating operation to be checked by observing its progress upon a sample in the vat 16.
Patent GB-1173525-A (GB)
Title: Electrical Connector.
IPC: H05K1/11
Filed: 1967-02-27
Abstract: 1,173,525. Two-part couplings. MOHAWK DATA SCIENCES CORP. 27 Feb., 1967 [11 April, 1966], No. 9275/67. Heading H2E. A sequential connector comprises a first member 22 having flexible pressure contacts 20 connected to soldering pins 23 and a mating second member constituted by contacts 4-16 printed on a circuit board 2 carrying electronic circuits, some of the printed contacts being broader in the vertical direction than others, to provide larger contact areas, and some being longer than others so that when the circuit board is engaged with and removed from member 22, power and signal connections are made and broken in correct sequence.
Patent GB-1128437-A (GB)
Title: A process for the manufacture of vinyl chloride
IPC: C07C17/25
Filed: 1967-02-28
Abstract: 1,128,437. Vinyl chloride. KUREHA KAGAKU KOGYO K.K. 28 Feb., 1967 [3 March, 1966], No. 9321/67. Heading C2C. Vinyl chloride is obtained by the pyrolysis of 1,2.dichloroethane in the presence of niobium and/or tantalum. The catalyst may be used in powder form or the wall of the reactor may be wholly or partly constituted by a niobium- or tantalum-containing alloy which acts as the catalyst.
Patent GB-1086344-A (GB)
Title: Magnetometer orientation
IPC: G01R33/02
Filed: 1966-03-03
Abstract: 1,086,344. Orienting magnetometers. CANADIAN PATENTS & DEVELOPMENT Ltd. March 3, 1966 [March 22, 1965], No.9340/66. Heading G1N. Means for orienting a magnetometer comprise two A. C. coils 13, 14 having axes (X, Y) mutually perpendicular and perpendicular to the optimum axis Z of the magnetometer. Two servomotors 16, 18 respond to A. C. components in the magnetometer output to orientate the magnetometer so as to eliminate the A. C. components thereby aligning the axis of the magnetometer with the magnetic field He (e.g. the Earth's) to be measured. The A. C. coils 13, 14 may be fed with A. C. of the same frequency in quadrature or of different frequencies in which case amplifiers 20, 21 would incorporate appropriate filters.
Patent GB-472902-A (GB)
Title: Improvements in and relating to the construction of lamp shades
IPC: F21V1/00
Filed: 1936-03-30
Abstract: 472,902. Lampshades. CURTIS, A. H. March 30, 1936, No. 9364. [Class 75 (ii)] A lampshade comprises a relatively rigid sheet-metal binding strip of channel section secured upon one edge, or upon each of two opposite edges, of a relatively weak flexible sheet, the binding strip then being bent into a closed ring and its meeting ends secured together. The shade may be circular, square, or triangular in cross-section, and it may be of cylindrical, frustoconical, prismatic, or pyramidal form. The binding strip may be plated or anodized, whilst the flexible sheet material may comprise a plurality of superposed layers of paper, cellulose acetate, or like coloured or uncoloured, transparent or translucent material, one or more of which bears designs or advertising matter. In the form shown in Fig. 1, the flexible sheet material 1 is provided with metal binding strips 5, 6, the ends of which are secured together by means of tongue-and-slot connections 10. The upper strip 5 has its outer wall turned upon itself to present a blunt edge, and its inner wall is formed with spring lugs 7 having recesses or apertures to receive the ends of arms 8 of a wire or other framework which secures the shade to an electric lamp holder or the like. The lower strip 6 together with the enclosed sheet material 1 is doubled upon itself and serves also to secure a sheet 12 which closes the bottom of the shade. In the form shown in Fig. 3, a wire 14 is inserted in the binding strip 13 and is formed at intervals with loops 15 which project inwardly through the strip to receive a wire or like framework 16. One end 18 of the wire 14 is turned over to secure together the ends of the strip 13, one end of which is formed with a projection 17 which enters a recess in the other end.
Patent GB-1029925-A (GB)
Title: Improvements in hydraulic pumps or motors
IPC: F01B3/00
Filed: 1965-03-05
Abstract: 1,029,925. Hydraulic reciprocating pumps and motors. H. THOMA. March 5, 1965, No. 9494/65. Heading F1A. In a swash-plate-type pump or motor with pistons engaging an inclined plate 9 through articulated slippers 4 each having a recess 5 in its bearing surface to which working liquid is supplied from the corresponding working cylinder via passages in the piston and slipper, plate 9 is formed with grooves 10 of small cross-sectional area which act to bridge the bearing surface of each slipper to provide a throttled flow of oil across the bearing surface. Grooves 10 act to connect slipper recess 5 to a peripheral recess 8. The slipper surface between the recesses 5 and 8 may be plain or may have a spiral throttling groove. Grooves 10 may be disposed radially, or obliquely to the radial as at 10A. The grooves may be spaced to provide either intermittent or continuous lubrication.
Patent GB-768598-A (GB)
Title: Improvements in the production of water-soluble methylol compounds of copolymers
IPC: C08F8/00
Filed: 1955-04-11
Abstract: Water-soluble macromolecular methylol derivatives are prepared by reacting a copolymer of an unsaturated carboxylic acid amide and a vinyl lactam with formaldehyde in aqueous medium at a pH above 5. Specified amides are acrylamide and methacrylamide and specified lactams are N-vinyl pyrrolidone and N-vinylcaprolactam. Small amounts of other polymerizable compounds, e.g. vinyl methyl ketone, acrylonitrile, vinyl acetate and methyl acrylate may also be present. It is preferred that 0.5 to 2.5 moles. of formaldehyde are used for each amide group, that the copolymer contains 5-50 per cent of the vinyl lactam and that it has a K-value of at least 25.  The compounds may be used as coating compositions, emulsifiers, dispersing agents, thickeners and binders.
Patent GB-641762-A (GB)
Title: Improvements in and relating to wire spring mattresses
IPC: A47C23/145
Filed: 1948-04-06
Abstract: 641,762. Mattresses. THORNTON, A. A. (Naamlooze Vennootschap Deventer Matrassenen Ledikantenfabriek voorheen A. J. Holtkamp.). April 6, 1948, No. 9647. [Class 52 (iv)] The flattened end of a woven wire mesh 3 is wrapped around a flat bar 2 which is inserted through a slot 4 in the hollow end bar 1.
Patent GB-434401-A (GB)
Title: Improvements in educational models
IPC: G09B23/04
Filed: 1935-03-28
Abstract: 434,401. Models. DRAGOVICS, J., and SZABO, J., Szombathely, Hungary. March 28, 1935, No. 9662. Convention date, March 28, 1934. [Class 146 (ii)] Models for educational purposes, especially adapted for teaching geometry, projection, and crystallography, are formed of transparent and substantially non-breakable sheet material which is used both for the outer surfaces and for other planes such as interior planes to be visualized, while the constructional lines of the model are formed of opaque and preferably coloured rods. The sheet material used may be a cellulose product such as acetyl cellulose, sheets of which can be easily cut, formed, and cemented together, and are obtainable in different colours.
Patent GB-385496-A (GB)
Title: Improvements in or relating to thermionic valves and like electric discharge devicesand to methods of manufacturing the same
IPC: H01J19/00
Filed: 1932-04-04
Abstract: A cold electrode of a thermionic valve &c. is coated with tungsten, molybdenum or tantalum powder.  An emulsion of the metal oxide in water or acetone to which gum arabic or collodion has been added is sprayed on to the electrode which is subsequently heated in hydrogen to reduce the oxide.  A protecting coating of collodion may be applied.
Patent GB-513271-A (GB)
Title: An improved process of and apparatus for the manufacture of starch foils or sheets
IPC: C08B30/06
Filed: 1938-03-30
Abstract: 513,271. Starch films. MOUFANG, F. March 30, 1938, No. 9755. [Class 2 (ii)] Aqueous pulps of starch of various kinds, starch derivatives, or decomposition products thereof are made into foils or sheets. The plastic mass is delivered from a heated nozzle e on to a travelling copper belt a carrying a separating layer k of rosin, wax or the like, and moisture is removed by hot air entering a relatively long enclosure m at o and leaving at o<1> and cold air entering a relatively short enclosure at q and leaving at q<1>. Heating elements p, p<1> which also act as air deflectors are provided. The layer of rosin, paraffin wax or the like is applied to the band by rollers h, h<1> and heater l, and this layer, which separates the foil or sheet from the band, is afterwards removed by steam from nozzles on a pipe t.