baber/WOPTO huggingface dataset:
Patent GB-1134315-A (GB)
Title: Vulcanizing accelerators for rubber
IPC: C07D277/72
Filed: 1967-07-07
Abstract: 1,134,315. Vulcanizing accelerators for rubber. DOLNOSLASKIE LAKLADY CHEMICZNE. 7 July, 1967 [11 July, 1966], No. 31423/67. Heading C2C. [Also in Division C3] Heavy metal aromatic mercaptides are obtained by the treatment of the by-products from the production of 2-mercapto benzothiazole, or a solution thereof, with an aqueous solution of an alkali metal or ammonium hydroxide at an elevated temperature followed by, after separation from the unreacted mass, treatment with an aqueous solution of a heavy metal salt. The production of 2-mercapto benzothiazole from aniline, carbon disulphide, sulphur and, optionally, nitrobenzene yields 8-15% of resinous by-products. Treatment of this by-product with, preferably, a 25% solution of sodium hydroxide at about 70‹ C. yields water-soluble sodium mercaptides. The aqueous solution of sodium mercaptides is separated and may be further purified using active carbon. The purified product is filtered and finally reacted with an aqueous solution, of, preferably, 20- 24% zinc sulphate at a pH of the medium of 5À5-6À7 to yield a product of water-insoluble zinc mercaptides which can be filtered, washed, dried and ground suitable for use as a vulcanizing accelerator for rubbers (see Division C3).
Patent GB-759774-A (GB)
Title: Improvements in or relating to apparatus for coupling a tractor to a trailer vehicle
Inventor: GRANT KENNETH ALEXANDER
IPC: B60S9/04
Filed: 1953-11-13
Abstract: 759,774. Fifth wheel couplings. BROCKHOUSE & CO., Ltd., J. Nov. 12, 1954 [Nov. 13, 1953], No. 31456/53. Addition to 740,737. Drawings to Specification. Class 103 (5). The ground engaging support for the trailer in the tractor trailer combination as claimed in the parent Specification is provided with a non-rotatable member instead of a wheel. Specification 740,688 also is referred to.
Patent GB-623762-A (GB)
Title: Improvements in or relating to drawing boards or tables
IPC: A47B27/00
Filed: 1946-10-23
Abstract: 623,762. Tables convertible to easels. NEVILLE, M., and JARVIS, F. E. Oct. 23, 1946, No. 31499. [Class 52 (iii) [Also in Group XV] A drawing board or table comprises a surface of transparent or translucent material mounted in a frame which is pivotally mounted upon a trestle and which has on its underside a casing or housing for one or more electric lamps to illuminate the surface. A sheet of glass 1, which is frosted or covered over with diffusive paper, is mounted in a frame 2 flush with its edges 3 which can be used for drawing pins or the like. The frame 2 is supported on crossed legs 4, 41 and 5, 51 which are pivoted about a common cross bar 6 and the height of the frame 2 is adjusted by pivoted bars 7, 71 and 8, 8<SP>1</SP> provided with holes 9 engaging projections on the legs. A casing 14 for light bulbs 13 or tubular fluorescent lamps is hinged to the frame 2 and has a light reflecting inner surface. The frame 2 and casing 14 can be angularly adjusted by a bar 11 hinged to the frame which has holes 12 for securing it to the leg 4<SP>1</SP>. An adjustable straight edge 15 and an instrument tray, pivoted near the table top, may be provided.
Patent GB-1120997-A (GB)
Title: Ester lubricants containing antioxidant compositions
Inventor: SCOTT MICHAEL DELMAGE
IPC: C07C333/32
Filed: 1965-07-23
Abstract: A lubricant comprises an ester oil and (a) either a compound containing the groups \s7 NH and \s7 C = S separated by a conjugated system, or a compound containing the group <FORM:1120997/C4-C5/1> provided the nitrogen atom of said group does not form part of a heterocyclic ring and (b) a secondary alkaryl amine or an amine of formula R1NH where R1 is part of a heterocyclic ring. Many examples of compounds (a) are given which include thiocarbazones, thiocarbazides, thiuram disulphides, thioamides, thioimides, thioureas, thiocarbamic acid and derivatives, thioacridone, aromatic aminothioketones, and aminothiobenzaldehydes. Amines specified include p,p1 dioctyldiphenylamine, phenothiazine, indole, isoindole, indoline and pyrrole.  Many examples of esters are given which include diesters, polyesters and complex esters.  The lubricant may also contain benzotriazole and a silicone.
Patent GB-369167-A (GB)
Title: Improvements in or relating to thermionic amplifiers and oscillation generators
IPC: H03B5/18
Filed: 1931-11-14
Abstract: 369,167. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Finch, J. L.; Patchogue, and Conklin, J. W. ; Rocky Point, both in Long Island, New York, U.S.A.) Nov. 14, 1931, No. 31587. Convention date, Dec. 3, 1930. [Class 40 (v).] In a thermionic amplifier or oscillator stabilized in frequency by the use of a long electrical line connected between input and output, stray and interelectrode feed-back is reduced by (a) neutralizing, (b) the use of valves in push-pull. The line may include a U-shaped or trombone slide for varying the length and may consist wholly or in part of lumped capacity and inductance. Fig. 1 shows a neutralized oscillator 8 modulated by a transformer and stabilized by the line 10 coupled to a power amplifier 22. In a modification, Fig. 2 (not shown), keying is effected by varying the grid bias of the amplifier or the oscillator. Fig. 4 shows a screen-grid push-pull oscillator 47, 49 in which the lines are adjusted by members 58, 60 and are inductively coupled to the input and output of the oscillator. Modulation is effected by varying screen-grid potential and the tappings to the line may be made at points remote from the ends by one quarter of the working wave-length to avoid difficulty in obtaining aperiodic transfer due to the end turns. The line may be used to couple the output of the amplifier following the oscillator back to the oscillator grid. The line may comprise an inductance 116, Fig. 6, shunted by condensers 118 or separate lumped inductances may be used in one or both the leads between each pair of condensers. The inductances may be shielded by a screening member 120. Alternatively the line may comprise concentric tubes with water, oil or sulphur as a dielectric. Specification 342,976 is referred to.
Patent GB-922070-A (GB)
Title: Improvements relating to buckles
IPC: B60P7/08
Filed: 1960-09-13
Abstract: 922,070. Buckles. F. B. BARLEY, and HARLEY PATENTS (INTERNATIONAL) Ltd. Aug. 21, 1961 [Sept. 13, 1960], No. 31592/60. Class 43. A releasable buckle comprises a body providing a main anchorage for connection to a part to be connected to a strap, a roller extending transversely of the strap and having on its surface and extending parallel to its axis a number of ribs, and an auxiliary anchorage, having a transverse concave surface facing the roller, such that a tension in the strap-extending between the roller and auxiliary anchorage in one direction causes a rib to kink the strap into the concavity of the auxiliary anchorage to grip it, and a tension in the other direction displaces the anchorage away from the roller permitting it to rotate and allowing the strap to be drawn through the buckle. The buckle comprises two side rails 10 connected by a lower transverse member 11 and mounting a transverse rod 12 anchoring the loop of a strap part and a rod 15 mounting a roller 16 having a hub with ribs 18, a release member 23 with a top into connecting part with a finger piece 25 has side pieces 22 which pivot on the rod 15. The auxiliary anchorage 30 has two spaced lugs 31 which pivotally engage a rod 33 the ends of which move along an elongated slot 34 in the side pieces 22 and an arcuate slot 35 in the side rails 10. A bent-over spring 55 anchored on the member 11 and reinforced by a spring 59 presses on the lugs 31 to urge the anchorage towards the roller. The anchorage has two concavities 40, 41. Pulling on the free end of the strap or pivoting the relesae member moves the auxiliary anchorage away from the roller and frees the strap for free sliding movement. Tensioning the under run of the strap allows the auxiliary anchorage to grip the strap. The release member 23 may alternatively pivot on studs on the side rails and rod 33 then extends into oval shaped apertures in the member and is not guided by the side rails. Stops limit the pivoting movements of the release member.
Patent GB-1066493-A (GB)
Title: Process and apparatus for the manufacture of films in sheet form by melt extrusion
IPC: B29C48/08
Filed: 1964-08-04
Abstract: 1,066,493. Making flat films by melt extrusion. KALLE A.G. Aug. 4, 1964 [Aug. 6, 1963], No. 31611/64. Heading B5B. Films in sheet form are made by downwardly melt-extruding a normally solid thermoplastic organic polymer through the slot-shaped extrusion orifice of a die E (Fig. 1, not shown) on to a rotating roller F immediately below and parallel to the die orifice to form a quenched film H. A suction box A is bounded on one side by the die E and on another is sealed by the peripheral surface of the roller and the interposed resilient arcuate seals G. Suction is applied to the box A through a pipe J, thereby reducing the air pressure in space D. The extruded melt H is thereby drawn vertically downwards into intimate contact with the roller F instead of following an inclined free path to the right. The peripheral surface of the roller is maintained at a quenching temperature below that at which the film would adhere to the surface if no vacuum were applied. The roller F is rotated in the direction shown by the arrow. Instead of applying suction to the box A through the pipe J (which communicates with a source of reduced pressure), the reduced pressure in the box Amay be maintained by means of an air injector nozzle the outlet of which is positioned in an aperture of the box near the peripheral surface of the roller F where it first approaches the box. The process increases the degree to which the molten film can be quenched and enables fibres of a more amorphous nature to be obtained.
Patent GB-955570-A (GB)
Title: Hypodermic injection device
Inventor: BELL HAROLD EDWARD
IPC: A61M5/28
Filed: 1961-09-04
Abstract: 955,570. Surgical injection devices. AMPINS Ltd. Oct. 16, 1962 [Sept. 4, 1961; Oct. 10, 1961; June 12, 1962], Nos. 31729/61, 36393/61 and 22585/62. Heading A5R. [Also in Division B8] An ampoule comprises a first medicament container 1 having a frangible portion 2 and a second container 3, which is flexible, having an open end fitted tightly over the first container to enclose the frangible portion so that on breaking the frangible portion the contents of the two containers may be mixed. The first container is made of glass or hard synthetic material and the flexible container has a sump 4 or a filter (not shown) to prevent fragments being withdrawn into a syringe the needle of which pierces the flexible container, which is made of polyethylene. The first container may have at each end a frangible portion 1 covered by a flexible container. The first container may have an additional frangible neck 23 over which a flexible tube 12 carrying a sheathed hypodermic needle 13 and a filter 17 may be mounted, so that the ampoule may be used as a hypodermic syringe. The frangible portion separating the containers comprises either a neck which is broken by manipulation through the flexible container or a weakened zone 29 which is broken by manipulating a rod 25 inside the flexible container. When the container having the frangible portion contains a liquid constituent an inert gas under pressure may be included to facilitate the mixing and subsequent ejection of the medicament.
Patent GB-1208937-A (GB)
Title: (thiono) thiolphosphoric and (thiono)-thiolphosphonic acid esters
Inventor: LORENZ WALTER
IPC: C07F9/553
Filed: 1968-07-03
Abstract: 1,208,937. Thionothiolphosphoric and thionothiolphosphonic acid esters. FARBENFABRIKEN BAYER A.G. 3 July, 1968 [2 Aug., 1967], No. 31775/68. Heading C2C. [Also in Division A5] Thionothiolphosphoric and thionothiolphosphonic acid esters having the general formula wherein R 1  is an alkyl radical having from 1 to 4 carbon atoms which may be substituted by halogen, R 2  is an alkyl or alkoxy group having from 1 to 4 carbon atoms which may also be substituted by a halogen, or is an alkylamino, dialkylamino, amino or phenyl group and Y is oxygen or sulphur, are prepared by reacting an N-halomethylmaleic acid imide of the formula with a thionothiolphosphoric or thionothiolphosphonic acid of the formula in the form of the ammonium or metal salt or in the presence of an acid-binding agent. The products possess insecticidal and acaricidal properties.
Patent GB-445948-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: A47G25/76
Filed: 1934-11-05
Abstract: A discharge-tube cathode is made by coating a metal of high electron-emissivity on a carrier of aluminium and then heating the carrier until the coating metal permeates and alloys with the aluminium.  In one method, potassium is distilled onto an aluminium cathode which is then heated to 350-400 DEG  C. in an inert atmosphere.  In operation, the cathode has a surface-film of oxide.
Patent GB-301455-A (GB)
Title: Improvements in or relating to arc discharge tubes
IPC: H01J61/72
Filed: 1928-11-01
Abstract: 301,455. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Nov. 30, 1927, [Convention date]. Low - pressure metallic - vapour apparatus.-An arc discharge tube, adapted for use as a recti fier, consists of an envelope 1 con taining an incandescent cathode 5, preferably a Wehnelt cathode nickel or carbon anodes 8, 9 and a filling constituted by mercury vapour and a gas which is not a raregas, e.g., hydrogen, nitrogen carbon monoxide, or carbon dioxide. In addition, a small quantity of a rare gas, such a; argon, may be employed. The gas pressure and the distance be tween the cathode and the anodes are such that the potential between the, electrodes is lower than the ionization voltage of the gas. Preferably the gas pressure is lower than two centimetres of mercury and the distance between the electrodes is of the order of one centimetre. The tube contains some drops of mercury; the temperature of the tube being relatively low, under 100 C. The cathode core consists preferably of a highly refractory metal, such as tungsten, on which a wire of lower melting-point, e.g. nickel, is wound, a coating being added of an alkaline earth metal, e.g. barium, an oxide thereof, or a compound which will yield an oxide on heating. In an example, the temperature of the cathode is 1000 C., the pressure of the hydrogen employed is 0.5 millimetres, the interelectrode distance is about 5 millimetres, and the potential between the electrodes is about 10 volts. With a lower gas pressure or when used for rectifying high-tension alternating current, the inter-electrode distance mav be of the order of some centimetres. Specification 5557/15 is referred to.
Patent GB-743165-A (GB)
Title: Water-soluble synthetic fibre and method for its manufacture
IPC: C08L29/04
Filed: 1953-11-17
Abstract: A synthetic fibre soluble in water at a temperature below 50 DEG  C. is composed of a copolymer, or mixture thereof with polyvinyl alcohol, the copolymer or mixture containing 2 to 10 mols. per cent of allyl alcohol and 98 to 90 mols. per cent of vinyl alcohol, and the copolymer being obtained by saponification of a copolymer of an allyl ester or alcohol with a vinyl ester.  The fibre may be obtained by spinning an aqueous solution into a coagulating salt solution, e.g. sodium sulphate solution, or by extruding an aqueous solution through a spinneret into a hot gaseous atmosphere wherein the water is evaporated.  In examples allyl acetate and vinyl acetate are copolymerized in bulk using benzoyl peroxide as catalyst, methanol is added and the copolymerization continued.  The product is saponified with a methanol solution of sodium hydroxide.
Patent GB-832429-A (GB)
Title: Improvements in or relating to correspondence sheets
IPC: B42D15/08
Filed: 1957-10-14
Abstract: 832,429. Letter sheets. DIAS, G. Oct. 14, 1957, No. 31963/57. Class 146(2) A letter sheet is prefolded along lines 4, 5, 7, and 8, lines 5 and 7 representing forward folds and lines 4, 6 and 8 rearward folds, and provided with one or more sealing flaps 9, 11, the arrangement being such that the panel A, B, which is at the head of the sheet in the open position is exposed when the sheet is closed, thereby necessitating one application only of the addresses. Crease lines 10, 12 for flaps 9, 11 are prefolded in the same direction at folds 4, 6, 8. Flaps 9 and 11 are gummed.
Patent GB-450067-A (GB)
Title: Method for the manufacture of mixed artificial leather and parchment and products obtained
IPC: D06N3/00
Filed: 1935-11-19
Abstract: 450,067. Parchment paper. CHAMPSAUR, L. M. C., 68, Rue Lauriston, Paris. Nov. 19, 1935, No. 32015. Convention date, April 12. [Class 96] Parchmentized artificial leather containing fibres of different natures is made by immersing paper in, e.g. a sulphuric acid, zinc chloride, or sulphocyanate bath under conditions such that the surface layers 1<1>, 1<2>, Figs. 3 and 7, only of the paper are parchmentized, washing, cleaving the paper into two parts each having one absorbent surface, e.g. using rolls on which the cleaved parts are wound. The inner fibres of the paper may be mercerized. Thin webs 3, 4, Fig. 7, may be parchmentized throughout and adhered by pressure of rollers, to a thick, superficiallytreated web 1, immediately after leaving the parchmentizing bath. The absorbent surface may be cemented to cardboard, and the parchmentized surface varnished &c. The material may be rendered flexible, smoothed, printed, grained, stamped, or hammered.
Patent GB-260128-A (GB)
Title: Improvements in or relating to excavators, dredgers and the like
IPC: E02F3/60
Filed: 1925-12-18
Abstract: 260,128. Mornement, E., Ray, J. N. C., and Mornement & Ray, Ltd. Dec. 18, 1925. Excavating.-In an excavator, dredge, &c. having a frame or back member provided with a cutting edge and adapted to be drawn to and fro by an engine on each side of the excavation by haulage ropes &c. attached to the frame at or near the top and bottom, the depth of cut being adjusted by adjusting the relative tension of the top and bottom ropes to tilt the frame, means are provided for automatically adjusting the relative tension of the top and bottom ropes when the machine is pulled in the reverse direction so as to tilt the frame to an angle sufficient to discharge the load. The frame a, with cutting edge f<1>, is pivoted at c to side wings b, slots d and pins e limiting the relative movement; forward and reverse upper haulage cables r, 6 are wound round a shaft g, ratchets k and pawls j holding the shaft against undesired movement in a direction to pay off the cables r. Quadrants o are pivoted to the frame at p and work through slots therein; lower forward haulage cables s are connected to links q pivoted at 13 to the quadrants, and lower reverse haulage cables w pass round the quadrants and are connected thereto at 12. When digging, Fig. 1, the device is pulled by a cable v, the depth of cut being adjusted by winding the cables r on the shaft g. When the reverse engine acts through cable 11, the cables w turn the quadrants about their pivots, Fig. 6, raising the links q and forward lower cables s, and the cable 6 becomes taut and turns the shaft g to wind on the cables r, the frame a then tilting to discharge the load. Specification 198,171 is referred to.
Patent GB-509568-A (GB)
Title: Improvements in or relating to the air-conditioning of premises and confined enclosures to which these improvements are applied
IPC: F24F5/00
Filed: 1938-11-04
Abstract: 509,568. Ventilating rooms and other enclosures. MOREAU, H. Nov. 4, 1938, Nos. 32072 and 32073. Convention dates, Dec. 10, 1937, and July 12, 1938. [Class 137] The air in enclosures is kept in the desired condition, particularly as regards temperature and humidity, by employing conditioned air in a thin sheet along concave surfaces which bound the enclosure. In Fig. 4, the conditioned air is supplied through two ports 14 which extend across one end of the egg-shaped enclosure, and is deflected along the walls by a funnel-shaped deflector 15. The two sheets of air meet at 16 and form a horizontal sheet 17 which escapes through a port 18 at the centre of the deflector 15. The air is conditioned in chamber 24 and is delivered by a fan to conduit 21. The whole is mounted on a platform 25 having wheels 26. Fig. 7 shows a bed 32 in an enclosure having a semicylindrical ceiling 33. An air conditioning unit under the bed supplies air in a sheet through ports 35 to the inner surface of the ceiling along which it passes to a shutter 36 controlling the outlet. In Fig. 9, an air-conditioning unit 41 supplies the air through a port 45 in thin sheets 46 along the curved wall 44 of an alcove having insulating packing 48. The ceiling of an enclosure may be formed in a series of arches 53, Fig. 10, the conditioned air being admitted through ports 54 at the intersections of these arches, and deflected upwards by deflectors 55.
Patent GB-520916-A (GB)
Title: Improvements relating to containers suitable for retail distribution of perishable food stuffs
IPC: B65D1/26
Filed: 1938-11-05
Abstract: 520,916. Milk &c. cartons. WALKER, W. Nov. 5, 1938, No. 32075. [Class 66] Seamless containers for milk &c. formed of cellulose acetate or other transparent artificial film-forming material by pressing or dipping, are provided with wide mouths having outwardly extending flanges 11 by which they can be supported during filling and sealing and over which cover sheets 14 of similar material overlapping the flanges can be applied and either heat-sealed or secured by an adhesive comprising polyvinyl acetate. The projecting corners 15 of the covers facilitate detachment. The containers may be of the truncated conical form shown or may be cylindrical or flask-shaped and may be provided with one or more pouring lips 13. They may be strengthened by peripheral corrugations and may be coated externally or lined for instance with a lacquer having a polyvinyl ester or ether basis.
Patent GB-654389-A (GB)
Title: Improvements in the preparation of frozen vegetables and fruits
IPC: A23B7/04
Filed: 1947-12-05
Abstract: Frozen vegetables and fruits are prepared by blanching the goods in a vessel from which air has been excluded in water or water vapour at about 100 DEG C, then cooling the goods in the vessel in the reduced pressure obtained and maintained by condensation of the water vapour present after the blanching process, the cooling action being effected by the evaporation of water from the heated goods under the effect of the reduced pressure, and then subsequently freezing the goods without removing them from the vessel.  Air or a gas poor in oxygen which has passed in contact with a freezing element arranged either within or in connection with the vessel may be used as a freezing medium.  The goods may be made up into packages which are perforated in the direction of flow of the freezing medium.