baber/WOPTO huggingface dataset:
Patent GB-641569-A (GB)
Title: 4-acylamino-1, 8-naphthalimides and their preparation
IPC: C07D221/14
Filed: 1947-12-11
Abstract: 4-Acylamino-1.8-naphthalimides are made by condensing 4-nitronaphthalic acid anhydride with ammonia or an aliphatic or aromatic primary amine in an organic solvent, reducing the nitro group and acylating with the anhydride or acyl chloride of an aliphatic or aromatic carboxylic acid.  The imido group may be unsubstituted or may be substituted by alkyl, hydroxyalkyl, carboxyalkyl, cycloalkyl, aralkyl, aryl, carboxyaryl, alkoxyaryl, hydroxyaryl (e.g. salicyl), and the acyl radical may be formyl, carbamyl, the radical of a fatty acid which may be substituted by hydroxy, amino, alkoxy or aryloxy, or a cycloaliphatic acid, or an aromatic acid which may be substituted by hydroxy, amino, or alkoxy, and the amines and acylating agents may be chosen accordingly.  A list of illustrative products is given and in examples 4-nitronaphthalic anhydride is condensed with the following amines followed by reduction and acetylation: (1) n-butylamine; (2) n-octylamine; (3) n-tetradecylamine; (4) n-octadecylamine; (5) benzylamine.  Also in examples, 4-amino - N - n - butyl - 1.8 - naphthalimide (obtained as under (1) above) is (6) benzoylated; or (7) hexahydrobenzoylated; and (8) 4-amino - N - n - tetradecyl - 1.8 - naphthalimide is benzoylated.  The products dissolve in organic solvents with a bluish fluorescence, and give fluorescent dyeings.
Patent GB-1164033-A (GB)
Title: Improvements in Welding Thermoplastic Sheet Material
IPC: B29C73/10
Filed: 1967-07-18
Abstract: 1,164,033. Seaming non-metallic sheet material. UNIROYAL Inc. 18 July, 1967 [19 Aug., 1966], No. 32873/67. Heading B5K. Two sheet portions 30, 32 of thermoplastic material, the materials of the portions being identical or compatible, are butt-welded together by holding the portions 30, 32 with the edges 38, 40 to be joined in contact; placing a button 20 of thermoplastic material identical to, or compatible with, the material(s) of the portions 30, 32 to extend across the edges 38, 40; spinning the button 20 relative to the portions 30, 32 at a speed sufficient to create enough heat to melt the material of the button and the portions where these are in frictional contact: simultaneously applying pressure between the button 20 and the portions 30, 32; terminating the spinning and pressure application when the button 20 has penetrated into the portions 30, 32 a required extent; and allowing the button 20 and the portions 30, 32 to cool to form a fused joint therebetween. The button 20 comprises a one-piece body moulded from granular thermoplastic material and has a frusto-conical side face 26, Fig. 1, an upwardly-projecting axial stem 28 and, optionally, a downwardly-projecting conical tip 22a. The sheets 30, 32 have outer thermoplastic laminations 34 and a cellular expanded core structure 36. In use, the stem 28 is placed in a recess 42a of a rigid metal driver 42 which has a high friction surface 44 formed either by roughening the bottom surface or by a ring of sand-paper. The driver 42 is connected to the chuck of a hand-held electric drill and is rapidly rotated until the button has penetrated into the sheets to the required extent. A number of buttons 20 are used spaced at intervals, but overlapping, along the edges 38, 40 to form a continuous joint. When the sheets 30, 32 are relatively thick compared to the buttons, they are turned and the operation repeated on the other side, Fig. 9 (not shown). After the buttons have cooled, the surfaces of the sheets 30, 32 and the buttons 20 are ground smooth. The invention is applicable to mending a tear or cut in a thermoplastic sheet. Fig. 12 (not shown), e.g. in an automobile body, and to the manufacture of thermoplastic countertops and cabinets. Specified thermoplastic materials are acrylonitrilebutadiene-styrene, polytetrafluoroethylene, ace. tal resins, polyvinylchloride, acrylic resins, polyethylene, polypropylene and polycarbonate resins.
Patent GB-1116767-A (GB)
Title: Improvements in superstructures for load vehicles
IPC: B60P1/00
Filed: 1966-07-22
Abstract: 1,116,767. Vehicle roofs. L. B. S. HEROU. 22 July, 1966, No. 33024/66. Heading B7B. To allow full headroom in a van body during loading, the roof is carried by links 6, 9 disposed at the corners and is raised by thrust links 15 pivotally connected to the links 6 and to the actuating lever 13, the operation being assisted by the tension springs 17 and 21.
Patent GB-1073133-A (GB)
Title: Improvements in or realting to ink containers of printing machines
IPC: B41F31/02
Filed: 1964-08-13
Abstract: 1,073,133. Automatic fluid level control. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Aug. 13, 1964 [Aug. 22, 1963], No.33112/64. Heading G3R. Heat sensitive electrical elements, e.g. negative temperature coefficient resistors, are located at different levels in the ink container of a printing machine so that if the level falls below the lower element, ink is supplied to the container, e. g. by operation of a solenoid valve, until the level reaches the upper element and causes the ink supply to be cut off. Other pairs of elements located elsewhere in the container may co-operate to ensure satisfactory control despite uneveness of level.
Patent GB-941952-A (GB)
Title: Vitamin a aldehyde complex
IPC: C07C47/38
Filed: 1960-09-28
Abstract: The invention comprises a crystallizable complex of equi-molar proportions of 2,6, trans, trans, Vitamin A aldehyde and 2,4,5- trihydroxy-n-butyrophenone.  The complex may be obtained by mixing the components in a solvent such as petroleum ether, hexane or other low boiling petroleum, fractions, diethyl ether, isopropyl ether, methanol, ethanol, benzene or toluene at a temperature up to the reflux temperature of the solvent but preferably at 40 DEG -100 DEG C., the complex crystallising out on cooling, or the complexing mixture is dried and the complex extracted with an organic solvent. It has a M.P. of 88.2 DEG C.  It may be mixed with gelatin, pectin, gum arabic, mineral waxes, vegatable waxes, sugars, beef tallow or monostearin and such compositions may be used as powders, flakes, beadlets, pellets, pills or capsules as medicines and for fortifying animal feeds. 2,6-trans, trans, Vitamin A aldehyde may be regenerated by washing the complex with aqueous sodium or potassium hydroxide Specification 777,811 is referred to.ALSO:The crystallizable complex of equi-molecular proportions of 2,6-trans, trans, Vitamin A aldehyde and 2,4,5-trihydroxy-n-butyrophenone made by the method described in Division C2 may be mixed with gelatine, pectin, gum arabic, mineral waxes, vegetable waxes, sugar, beef tallow or monostearin and may be used as medicines in the form of powders, flakes, beadlets, pills or capsules.  Specification 777,811 is referred to.ALSO:The crystallizable complex of equimolecular proportions of 2, 6, trans, trans, Vitamin A aldehyde and 2, 4, 5, - trihydroxy-n-butyrophenne made as described in Division C2 may be mixed with gelatin, pectin, gum arabic, mineral wax, vegetable wax, sugar, beef tallow or monostearin to form powders, flakes, beadlets or pellets for fortifying animal feeds.  Specification 777,811 is referred to.
Patent GB-474185-A (GB)
Title: Improvements in and relating to electric switches having arc quenching arrangements
IPC: H01H33/18
Filed: 1936-12-04
Abstract: 474,185. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 4, 1936, No. 33328. Convention date, Dec. 5, 1935. [Class 38 (v)] Magnetic blow-outs.-In a switch in which arc-extinction is effected by gas evolved by the influence of the arc on insulating walls disposed adjacent-its path, in order to equalize the wear produced on the contacts and walls by the arc, one or more coils are provided on the walls for producing a radial field for causing the arc to wander. A coil or coils 8 are connected between the fixed contact 2 and an arcing ring 3, and are arranged on the walls of a gas-evolving, insulating body 6 which, with the insulating pin 7, forms the arcing space 4 receiving the tubular movable contact 1. In order to concentrate the flux 11, shortcircuited windings 12, 13 are provided, and in some circumstances the ring 3 may serve as such a winding. The arc-root on contact 1 may be additionally influenced magnetically by milling out grooves 14 of spiral shape, Fig. 2, whereby the individual contact-sections act as coils. Where several coils are employed the connection of the coils is such that the fields produced by successive coils are differently oriented, the arc being thus compelled to pass successively through differently-oriented fields and thus rapidly moved.
Patent GB-154541-A (GB)
Title: Improved fixing of the guide pulley on the firebox of steam plough engines with vertical rope drum upon the rear axle
IPC: A01B3/68
Filed: 1920-11-26
Abstract: 154,541. Kemna, J. [Firm of]. Feb. 28, 1919, [Convention date]. Winding and paying- out apparatus on motor vehicles. - The guide pulley for a traction engine fitted with a winding drum on the rear axle, is mounted on a bracket carried under the boiler on the front of the fire box. The bracket is fitted with vertically disposed bearings to the right and left for the guide pulley axle so that the guide pulley may be mounted to serve a winding drum on either end of the axle. The bracket 13 is in the form of a hollow box mounted between extensions 20, 20' of the fire box and is fitted with bearings 15, 16, 15<1>, 16<1> for the pulley axle. The box is fitted with extensions 24 fitting spacing blocks 25 on the fire box, and with bearings 26<1> for the steering shaft. In a modification the box is bolted to ledges on the fire box and the steering shaft is mounted in forwardly extending lugs.
Patent GB-289036-A (GB)
Title: Improvements in the manufacture of cigarette paper
IPC: A24B15/16
Filed: 1927-12-10
Abstract: 289,036. Seferiadis, B. April 22, 1927, [Convention date]. Paper, adding special substancss to.-The acrid gases and acids, produced during smoking by the combustion of the paper of cigarettes, are neutralized by incorporating in the pulp from which the paper is made extracts or essences of tobaccos suitably chosen according to the nature of the tobacco used in the manufacture of the cigarettes. The essence may be obtained from leaves of oriental tobacco or other tobaccos of like quality, or from broken pieces or from flowers or other residues of the tobacco plant. The Specification as open to inspection under Sect. 91 (3) (a) states that the paper may comprise stripes in its texture giving the, appearance of tobacco leaves and may be employed for wrapping round cigars, also that the natural tobacco essences may be replaced by artificial essences. This subject-matter does not appear in the Specification as accepted.
Patent GB-898230-A (GB)
Title: Improvements relating to fastenings for portable boxes
IPC: E05B65/00
Filed: 1958-10-21
Abstract: 898,230. Toggle fastenings. CHENEY & SON Ltd., C. W., and TOMKINSON, F. M., CHENEY, H. W., and SHERWOOD, G. M., [Representatives of CHENEY, C. W.]. Dec. 21, 1959 [Oct. 21, 1958], No. 33533/58 Class 44. A toggle fastening for a box having a lid made in two sections each of which may be hinged to the body of the box so that in the closed position the free ends of the sections meet at a common joint 8, comprises an attachment plate 19 secured to the box body, a manually operable lever member 20 pivoted at 22 to the plate 19 and loaded by an overcentre spring engagement of a tongue 27 thereon with a blade spring 28 secured to the plate 19, a hasp link 23 pivoted at 25 to the lever member 20 and a catch plate 14 in two parts which are attached to the respective two sections of the lid, the link 23 having a hooked or looped end 26 for engagement with the catch plate.
Patent GB-810385-A (GB)
Title: Improvements in or relating to static-free textile fiber working units
IPC: C08L27/06
Filed: 1955-11-23
Abstract: A composition used for making a static-free working surface on a textile fibre working unit comprises (1) a resin selected from polyvinyl chloride, a copolymer of 95 per cent vinyl chloride and 5 per cent vinyl acetate, and mixtures thereof; and (2) 0.5 to 40 parts by weight per 100 parts by weight of the resin of a polyoxyalkylene of molecular weight from 100 to 20,000, and which is terminated with at least one hydroxyl group.  The composition may also include a stabilizer and/or plasticizer for the resin and also a filler and/or pigment.  The polyoxyalkylene compound may be selected from the following classes: polyethylene glycol polyether, polyethylene glycol polyether monoesters terminated with a fatty acid, polyethylene glycol polyether monoether terminated with an ether of a monohydroxy alcohol, polyethylene glycol polyether monothioether terminated with a thioether of a mercaptan, a polyethylene glycol-polypropylene glycol reaction product, polyethylene glycol polyethers terminated at one end with a chlorine atom or methyl group, or mixtures.  Specified polyoxyalkylene compounds are the oleic, lauric and stearic acid monoesters of polyethylene glycol of M.W. 400 to 1000, polyethylene glycol polyether terminated with hydroxyl groups and of M.W. 4000, methoxy terminated polyethylene glycol polyester of M.W. 350, and polyoxyalkylene derivatives of hexatol anhydride long chain fatty acid esters.  The plasticizer may be dibutyl or dioctyl phthalate, tricresyl phosphate, cresyl diphenyl phosphate, butyl benzyl phthalate, butyl phthalyl butyl glycollate, triethylene glycol dioctoate, dioctyl diester amide, or polyethylene glycol dioctoate. Specified fillers and pigments are calcium silicate, clay, whiting, carbon black, titanium dioxide, white lead, lead stearate and basic lead silicate.  The compositions may be extruded into tubular sections which are used as textile roll covers and in the manufacture of aprons.
Patent GB-881330-A (GB)
Title: A plate screen
IPC: B07B1/49
Filed: 1958-02-20
Abstract: 881,330. Sieves. ROSENTHAL-ISOLATOREN-G.m.b.H. Feb. 20, 1958 [March 29, 1957], No. 33642/60. Divided out of 881,329. Class 117 A screen comprises a frame supporting rows of screen plates consisting of sintered metals or of ceramic materials and are small compared with the size of the screen. The plates are perforated and/or form perforations where they border one another. In Figs. 1 and 2 rows of screen plates 2, such as described in Specification 881,329, are supported on rails 9, and each plate comprises small cylindrical bodies 1 embedded in a layer 3 and supported by a plate 4. The screen plates may be as shown in Figs. 3 and 4 with circular or slot shaped perforations, and their bordering edges are recessed to provide transverse slots. In the plate mounting arrangement of Fig. 6 the vertical limbs of the inverted T-shaped rails project above the plates and may be of resilient material or may carry a resilient cover 14; the plates are received in resilient bars 10.
Patent GB-936411-A (GB)
Title: Improvements in and relating to drills
IPC: B23B51/06
Filed: 1960-09-30
Abstract: 936,411. Drills. STALKER DRILL WORKS Ltd. Sept. 20, 1961 [Sept. 30, 1960], No. 33737/60. Class 83 (3). A drill has a cutting length 20 having coolant passages 26 alongside the axis and a shank length 27 having an axial coolant passage 33, the lengths each having at least one straight or helical flute, that in the shank portion being the shallower and having a convex base. The shank and cutting portions are of different steels. The shank proper 28 may be integral or attached and may be cylindrical. Fluid is supplied at a bore 35 or at the end of the shank.
Patent GB-1028171-A (GB)
Title: Improvements in or relating to the manufacture of sheet glass
IPC: C03B15/02
Filed: 1963-08-26
Abstract: A process for the thermal homogenization of gases which pass from a working compartment into a glass sheet drawing chamber, in which the gases are passed into a chamber defined by refractory elements extending downwardly into close proximity with the glass surface and isolating the drawing chamber from the rest of the glass melting tank, is characterized in that the gases pass along the surface of the bath beneath said refractory means and are intimately mixed and become thermally homogeneous by being caused to pass through a chamber disposed in the bases of the refractory elements.  In an apparatus adapted to carry out the process, the glass sheet drawing chamber is defined by walls 4 (the Figure, not shown) having bases 10 which extend downwardly into close proximity with the glass surface and isolate the drawing chamber 5 from the rest of the smelting tank 2. Chambers 11 are formed in the bases 10 and into these the gases pass to be intimately mixed and become thermally homogenized before passing at 15 into the drawing chamber.
Patent GB-956576-A (GB)
Title: Improvements in or relating to pneumatic tyres for vehicles
IPC: B60C17/01
Filed: 1960-10-03
Abstract: 956,576. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. Oct. 3, 1960 [Dec. 21, 1959], No. 33791/60. Heading B7C. To increase the lateral stability, a pneumatic tyre 1 has a hollow cylindrical substantially inextensible reinforcing member 4 within the air space of the tyre facing the tread portion 8, the band being stiffened in its centre region by a flat band 9 of sheet steel, polyamide or the like, and having its edges formed of rubber with or without inextensible circumferential cords 11 therein, and being either supported on an inner air tube 7, Fig. 1, or integral with the outer periphery of an inner tubeless air-retaining body 18, Fig. 2, so that it extends axially at 15 into contact with the sidewalls 12 of the tyre 1 and is spaced radially inwardly from the inner surface of the tyre tread 5 by a distance which is equal to, or slightly greater than the extent H of normal load deflection of the tread. The inner air space 6 of the tube 7 or body 18 is inflated to a higher pressure than the out space 5, and the reinforcement band 4 is brought into play only on radial road shocks, or by lateral tread forces 17 when, as shown in Fig. 3 in broken lines, one sidewall is then braced by the edge of the band. The band 9 and circumferential cords 11 may be embedded in rubber 14, the cord-reinforced edge portions 10 of the band 4 being more deformable than the central portion. Alternatively, the edge portions may comprise inflated hollow rubber cushions 23, Fig. 3. In the Fig. 2 construction, the inner body 18 is formed with bead cores 2<SP>1</SP> and radial reinforcing cords extending from bead to bead, the tyre proper in this case having unreinforced sidewalls the edges 20 of which are clamped between the beads 21 of the inner body 18 and the wheel rim 22. In a further arrangement, the reinforcement band 9 and cords 11 may be detachably seated in spaced circumferential grooves in the periphery of a tubular inner body.
Patent GB-655876-A (GB)
Title: Radio control system for traffic signals
IPC: G08G1/01
Filed: 1947-12-23
Abstract: 655,876. Indicating presence of bodies. ALBISWERK ZURICH AKT.-GES. Dec. 23, 1947, No. 34075. Convention date, Sept. 5, 1946. [Class 37] [Also in Groups XXXVIII and XL (c)] A vehicle-controlled road traffic signalling system comprises a radio transmitter having a directional aerial system 3 mounted above and irradiating a selected portion of the roadway, and a detector 2 which responds to changes in the aerial impedance caused by the passage of traffic beneath the aerial system by delivering a signal to a relay unit 7 controlling the traffic signals 8. The output of the detector 2 is applied to the relay unit 7 via a discriminator 6 which ensures that only responses whose amplitude and duration correspond to road traffic (i.e. not, for example, to pedestrians) actuate the relay 7. As shown, the directive aerial comprises a broadside array backed by a reflector 9. Each dipole of the array is approximately a wavelength long so that it is in an anti-resonant condition and its input impedance is sensitive to changes in the field conditions. The area of the roadway irradiated by the aerial system is arranged to have a high reflectivity so that varying weather conditions should not unduly effect the normal value of the aerial input impedance. To this end the area may be surfaced with a material of high dielectric constant; alternatively, metallic reflecting elements, as shown at 10, may be embedded in the roadway. The Specification as open to inspection under Sect. 91 also describes detector circuits which comprise respectively, means operated by current changes in the input circuit, means operated by voltage changes in the input circuit, means utilizing the variations in the input impedance to vary the grid current in a valve, and a bridge circuit of which the input impedance forms one arm. This subjectmatter does not appear in the Specification as accepted.
Patent GB-344780-A (GB)
Title: Improvements in and relating to the driving of dynamo electric machinery
IPC: F01K15/04
Filed: 1929-11-08
Abstract: 344,780. Motor power plant. CLARKE, R. T., Ollerton, Holwood Park Avenue, Farnborough, Kent, and SMITH, S. A., 403, Beckton Road, Plaistow, London. Nov. 8, 1929, No. 34200. [Class 110 (iii).] Relates to motor-power plant, particularly for ships, of the type in which a reciprocating steam engine driving a propeller shaft a direct exhausts into a turbine i which drives back on to the shaft a through gearing g, e, c, b, and a hydraulic coupling f. During normal running the electric generator l for auxiliary services in the ship is driven by the shaft h of the turbine i through a hydraulic coupling k. When, however, the reciprocating engine on the shaft a is reversed or stopped, and the turbine i no longer receives exhaust steam, the hydraulic couplings f, k, are emptied and the generator l is driven bv a turbine m which is fed with live steam. The oil-lines including those for the high and low pressure cut-off valves n, q for the turbines m, i are controlled by gear o. In the modification shown in Fig. 2, the auxiliary generator l is driven by the shaft of the gear e, a hydraulic clutch f being provided as before. When the main engine is stopped or reversed, the turbine i is supplied with live steam.
Patent GB-1070280-A (GB)
Title: Removable surface coverings
IPC: E01C23/03
Filed: 1964-08-21
Abstract: A surface covering-for protecting freshly prepared concrete road surfaces or sports areas against rain &c.-has an elastic airtight member capable of inflation to a cylindrical shape to serve as a wrapping drum for the covering.  The inflatable member may be integral with the covering and may be of the same material -for example plastics sheeting, or coated or impregnated textile material-as the covering.  The covering and/or inflatable member may have an edging of flexible webbing or tubular material-the tubular material in the case of the inflatable member being inflatable with a higher pneumatic pressure than the interior of the drum.  After the web has been wound onto the drum, the free end of the web can be secured to the preceding winding by means of buttons, buckles &c.