baber/WOPTO huggingface dataset:
Patent GB-572160-A (GB)
Title: Improvements relating to the chlorination of phthalic compounds
IPC: C07C51/363
Filed: 1943-10-21
Abstract: Phthalic anhydride and compounds of the general formula: <FORM:0572160/IV/1> in which R may represent hydrogen, a metal or an organic radical are chlorinated in the nucleus to obtain compounds containing up to 4 nuclear atoms of chlorine per molecule, with the use of ferric chloride as the sole substantial source of the chlorine.  A mixture of the phthalic compound and anhydrous ferric chloride, in proportions approximating 2 mols. of the chloride per mol. of phthalic compound for each atom of chlorine to be added may be maintained at a reaction-temperature of 200-300 DEG  C. for 3-8 hours until chlorination is complete, the resultant chlorophthalic compound being thereafter distilled from the reaction-mixture. The process may be performed as a cyclic operation involving (a) reaction of the ferric chloride with the phthalic compound; (b) separating the product from the resultant ferrous chloride; (c) re-chlorinating the ferrous chloride to ferric chloride and (d) reaction of the re-formed ferric chloride with a further quantity of the phthalic compound.  In Examples: (1) dichlorophthalic anhydride is prepared by heating phthalic anhydride (1 mol.) with anhydrous ferric chloride (4 mols.) at about 300 DEG  C. for 3 1/2 hours, permitting the evolution of hydrogen chloride, the temperature being raised to 284-303 DEG  C. over a further 30 mins., when distillation of the product occurs; the residue containing ferrous chloride may be re-chlorinated to ferric chloride and the latter sublimed for re-use; (2) dichlorophthalic anhydride is prepared in yield comparable with (1) by fusing together phthalic anhydride (1 mol.) and anhydrous ferric chloride (4 mols.) and maintaining the mixture above the fusion-point, but below distillation-temperature of the reactants for 1 1/2 hours; when hydrogenchloride ceases to be envolved the product is distilled from the reaction-mixture.
Patent GB-612946-A (GB)
Title: Improvements relating to door fastenings
IPC: E05B65/22
Filed: 1946-06-11
Abstract: 612,946. Door locks. WILMOT-BREEDEN, Ltd., PALMER, A., and SATCHWELL, F. J. June 11, 1946, No. 17388. [Class 44] A door latch of the kind in which the inner handle can be actuated to render the outside handle ineffective has a spring-loaded bolt b, a lever d operable through the lever i by the inside handle on the spindle f to retract the bolt, and a lever at right angles to the plane of the lever d and operable by the outside handle to retract the bolt through the lever d. The lever d has three arms d<1>, d<2>, d3 of which d<1> co-operates with the bolt b, d<2>, with the operating lever i and d<3> with the operating lever j. The lever d may be moved in the opposite direction by the inside handle into a position (shown in dotted lines) in which the arm d<3> is held clear of the lever j rendering the outside handle ineffective. The lever d has notches u coacting with a spring-pressed detent t to retain it in the locked or releasable positions. The lever f is spring loaded and carries projections p, s for co-operation with the outside handle and the lever d respectively. The outside handle is of the type pivoted to move at right angles to the plane of the door.
Patent GB-278455-A (GB)
Title: Improvements in coin selecting device
IPC: G07D3/04
Filed: 1926-07-12
Abstract: 278,455. Dehn, F. B., (Rhodes-Hochriem Manufacturing Co.). July 12, 1926. Testing coins, - Relates to a coin-testing device of the kind in which the coin shoot is provided with a lateral opening for the discharge of coins of less than a predetermined size. According to the invention, the coin shoot comprises a coin receiving portion 4, 5 and a coin delivery portion 6 located in two parallel vertical planes, these portions being connected by a deflected portion 3 in which the opening for testing the size of the coins is provided.
Patent GB-481847-A (GB)
Title: Improvements relating to receptacles in the form of pouches, such as shopping bags, tobacco pouches, purses, and the like
IPC: A24F23/02
Filed: 1937-06-23
Abstract: 481,847. Bags, pouches, &c. BELLAU, H. June 23, 1937, No. 17459. Convention date, Aug. 3, 1936. [Class 133] The mouth of a shopping bag, purse, tobacco pouch, &c. is formed wider than the gusseted bottom and is provided with elements c, d, stitched to the edges e, f, and connectable by a sliding-clasp fastener g. When attached together by the fastener the parts c, d, form a gusset foldable into the mouth of the bag &c. ; when separated they can be turned down to lie against the sides within the mouth portion.
Patent GB-595444-A (GB)
Title: Improvements in or relating to medicaments, and to the preparation thereof
IPC: A61K9/16
Filed: 1945-07-09
Abstract: In preparing a medicament in tablet, powder or crystalline form, each particle of medicament is provided with a protective coating of stearic acid, alone or in admixture with liquid paraffin, by spraying, trituration or precipitation.  The stearic acid may be sprayed as a solution in alcohol, chloroform, ether or a mixture of ether and liquid paraffin, or in the molten form. According to examples: (1) a mixture of activated charcoal and sodium tauroglycocholate is sprayed with a solution of stearic acid in the minimum quantity of alcohol, ether and/or chloroform, the solution then being allowed to evaporate; (2) acetylsalicylic acid is dissolved in the minimum quantity of alcohol, ether and/or chloroform, stearic acid is added and the solution is evaporated by blowing with dry air in a revolving glass container; (3) acetylsalicylic acid is dissolved as in example 2, the solution being triturated with a mixture of stearic acid and liquid paraffin.  In using a melt of stearic acid, the finely-powdered ingredients are treated with a fine spray of the melt while being rotated in a suitable container.  Specification 285,091, [Class 81 (i)], is referred to.
Patent GB-586980-A (GB)
Title: Improvements in mechanical rectifiers for electric alternating currents
IPC: H02M7/40
Filed: 1944-09-13
Abstract: 586,980. Rectifiers. STANDARD TELEPHONES & CABLES, Ltd., and RICHARDS, E. A. Sept. 13, 1944, No. 17483. [Class 38 (ii)] In a rectifying arrangement, one or more dry contact rectifiers are connected permanently in circuit, and these, which are not large enough to carry the full current, are shortcircuited during most of the current carrying period. The outer ends of secondary winding - 3 of an input transformer 1 are connected to brushes 14, 15 bearing on a rotatable commutator comprising two conducting segments 10, 11 separated by insulating segments 12, 13 and a conducting disc 8 permanently connected to segment 10. A load 5 is connected between a centre tap of the secondary 3 and a brush 7 bearing on disc 8, while dry contact type rectifiers 16, 17 are connected across brushes 14, 15. The commutator rotates synchronously with the A.C. supply and is so disposed that during the half-cycles when brush 14 is positive compared with the centre tap it is in contact with segment 10 and this to load 5 which receives current mainly through the commutator but partly through rectifier 16, except at the ends of each half-cycle when brush 14 is bearing on the insulating segments 12, 13 and current flows entirely through the rectifier 16. During the other half-cycles when brush 15 is positive it bears mainly on segment 10, and load 5 takes current in the same direction and manner through brush 15 and rectifier 17. In a further modification the load is supplied through a bridge connection of four rectifiers associated with a commutator having four insulating and four conducting segments and rotating at half synchronous speed. Fig. 5 (not shown). Also described are suitable connections for a three-phase circuit, Fig. 6 (not shown). Specifications 172,391, [Class 38 -(ii)], and 570,526 are referred to.
Patent GB-217069-A (GB)
Title: Improvements relating to collar studs
IPC: A44B3/04
Filed: 1923-07-05
Abstract: 217,069. Griffith, S. July 5, 1923. Studs.-The head d of a twopart collar stud of known form is arranged to swivel after the manner of the head of the known lever stud. Specification 14161/91 is referred to.
Patent GB-501270-A (GB)
Title: Improvements in or relating to mosaic photo-cells and processes of manufacturing same
IPC: H01J29/43
Filed: 1937-06-23
Abstract: 501,270. Discharge apparatus. RADIOAKT.-GES. D. S. LOEWE. June 23, 1937, No. 17511. Convention date, June 23, 1936. [Class 39 (i)] The opposed faces of a mosaic screen 5, Fig. 4, and a net 8 parallel and close together in a photo-electric tube for television transmission &c. are photo-sensitized when widely separated as shown in Fig. 2; and are brought close together after sensitization by sliding the net 8 on glass rods 10. Filaments 16 holding the net 8 against the force of springs 14 or gravity whilst caesium is introduced through side-tubes 17 are fused by passing current through them or by eddy currents. In its final position, the net 8 may be forced against mica 7 on the mosaic 5 by wedges 20 forced forward by springs 22 when filaments 25 are fused. An image to be transmitted may be projected through the mosaic 5 on to the net 8 to cause photo-electric emission from the net to charge the mosaic, and the mosaio may be scanned by a light ray projected through the net. The Specification as open to inspection under Sect. 91 comprises also the following subjectmatter. A transparent net or thin wire may be provided between the net 8 and the mosaic to pick up the signals. In a sensitizing process carried out with the net 8 adjacent to the mosaic, the faces of the net and mosaic are oxidized by a high-frequency field in oxygen at 10 mm. pressure, the oxygen is pumped out and the cell heated to 200‹ C., caesium is introduced, in the presence of argon, from a side tube at the top of the bulb or elsewhere, the cell is heated to 100‹ C., the argon is removed and the cell is finally heated to 200- 220‹ C. The sensitizing process with temporarily separated electrodes is applicable to electrodes emitting secondary electrons or " thermal " electrons. This subject - matter does not appear in the Specification as accepted.
Patent GB-237243-A (GB)
Title: Improved method of decomposing metal sulphates by heating
IPC: C01B17/74
Filed: 1925-07-09
Abstract: Sulphur trioxide is obtained by heating sulphates such as iron or aluminium sulphates or alum in vacuo.  The sulphur trioxide may be converted into sulphuric acid and employed to treat raw materials to produce more sulphates.  The heating may be effected in iron retorts or in mechanical shelf furnaces.  Ferric sulphate may be decomposed at 630 DEG  C. in a vacuum of 50 mm.ALSO:Metallic oxides and sulphur trioxide are obtained by heating sulphates such as iron or aluminium sulphates or alum in vacuo. The sulphur trioxide may be converted into sulphuric acid and employed to treat raw materials to produce more sulphates.  The heating may be effected in iron retorts or in mechanical shelf furnaces.  Ferric sulphate may be decomposed at 630 DEG  C. in a vacuum of 50 m.m.
Patent GB-861042-A (GB)
Title: Wallpaper measuring and pasting machine
IPC: B44C7/04
Filed: 1957-06-04
Abstract: 861,042. Coating webs. JAGGER, A. Sept. 12, 1957 [June 4, 1957], No. 17637/57. Class 140. Apparatus for pasting wallpaper comprises a pair of rollers 26, 36 for drawing the paper from a roll 18 and a paste roller 50 connected by a chain drive 66 to the roller 26 and a pressure roller 58 bearing on the paste roller and connected by a chain drive 72 to the roller 36, the paste roller being in a tray 48 and a handle being fixed to the shaft 30 of the roller 26, the paste and pressure rollers having a greater peripheral speed than the rollers 26, 36 to maintain tension on the paper. The rollers 18, 26, 50 are mounted in a case 12 in the lid of which the rollers 36, 58 are mounted. The pasted paper is removed from the roller 50 by stripping fingers 86 engaging circumferential grooves in this roller and fixed to a guide 84 having a groove 88 in which a knife can be inserted for cutting the paper. The length of paper passed through the rollers is indicated by a pointer on the roller 26 associated with a numbered dial.
Patent GB-137018-A (GB)
Title: Improvements in or relating to Selecting Devices for Automatic Telephone Systems.
IPC: H01H67/16
Filed: 1919-07-14
Abstract: 137,018. Siemens Bros. & Co., Christian, D. A., and Sumner, G. P. July 14, 1919. Automatic exchange apparatus.-In a selector in which a stop 12 is provided to press the pawl 8 out of engagement with the ratchet 3 when the armature 6 of the operating-magnet 5 is released, an abutment 13, which may be integral with the armature, limits the disengaging movement of the pawl, so that it is ready to engage the ratchet when the armature is again attracted. The pawl 8, which has a side wing 11 to engage the stop- 12, is pivoted at 9 and connected to the armature by a spring 10.
Patent GB-582836-A (GB)
Title: Cathode-ray oscillograph circuits
IPC: H04N3/24
Filed: 1944-09-15
Abstract: 582,836. Pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Sept. 15, 1944, No. 17689. Convention date, Sept 23, 1943. [Class 40 (v)] In a time base circuit in which a condenser is discharged by a gas-filled triode in response to a pulse to produce a saw-tooth, a diode is arranged to conduct when the condenser is charged to a certain level, the potential produced by the diode current flowing through a resistance, feeding a D.C. amplifier, the output of which is applied to the control grid of a cathode-ray tube. A positive pulse applied to the grid of gas-filled valve 1, causes it to fire and discharge condenser 10, the condenser recharging, at a rate determined by the variable resistance 9, until the diode 12 conducts. The diode is maintained conducting, except for the duration of the saw-tooth wave, while condenser 10 is charging, the potential across resistance 14, carrying the diode current, being applied to the amplifier 21, the anode of which is connected over the potential divider 25, 26 and associated compensating condensers 27, 28 to the grid of the cathode-ray tube 0. During the charging of condenser 10, when diode 12 is non-conducting, the potential of the grid of amplifier 21 falls, the rise in anode potential causing the brightening-up of the trace on the cathode-ray tube. The amplitude of the sawtooth may be adjusted by varying resistances 6, 7, 16, 17.
Patent GB-1536814-A (GB)
Title: Cut off and grooving tool
IPC: B23B29/04
Filed: 1977-04-28
Abstract: 1536814 Cutting tools KENNAMETAL Inc 28 April 1977 [14 May 1976] 17699/77 Heading B3B A grooving or parting-off tool comprises a support frame 16 from which extends a relatively thin planar blade 18 to which is attached a seating 28 and a cutting insert 26. The blade 18 has a substantial height dimension in comparison with its width, and the insert 26 is fixed to the blade adjacent the centre of its height and on its free edge. The blade 18 is slotted to receive a plate 30 which carries the seating 28 and insert 26. The blade 18 is supported laterally against buckling by a bolted-on block 22. The frame 16 has an adaptor 12 by which the tool is mounted in a machine tool, and a carrying handle 14. The tool may be mounted upside-down (Fig. 4, not shown) so that swarf may fall out of the groove being cut by gravity. The insert 26 is circular and can be held in the seating 28 by, e.g. brazing or wedging.
Patent GB-145582-A (GB)
Title: Manufacture of artificial fertilisers
IPC: C05C1/02
Filed: 1920-06-29
Abstract: 145,582. Akt.-Ges. f³r Anilin-Fabrikation. March 16, 1918, [Convention date]. Addition to 146,259. Manures.-In preparing fertilizers of the kind described in the parent Specification, the inorganic salt is not heated. A hot concentrated solution of ammonium nitrate is mixed, for example, with unheated potassium sulphate, or a mixture of rock salt and calcined magnesium sulphate. A great part of the water evaporates and the mixture solidifies and is ground.
Patent GB-301939-A (GB)
Title: A system of selective remote control by superimposing alternating currents on linked light and power mains
IPC: H02J13/00
Filed: 1927-07-04
Abstract: 301,939. Muck, O. July 4, 1927. System depending on static transformers; distribution conductor arrangements.-In a control system operating over a linked power distribution system comprising a number of feeders, a plurality of superimposing stations, each superimposing on a section of the system, are employed and controlled from a control station to operate in parallel. Fig. 1 shows a control station FZ and superimposing stations A, B, C, in which bands of a continuously varying frequency are selected and transmitted as described in Specification 278,044, [Class 40 (i), Electric signalling systems &c.]. Operation of systems. The closing of starting switch a causes a frequency to be transmitted which energizes relays a<1> at the superimposing stations to start superimposing motor-generators M.G. The switch 1 corresponding to the frequency to be superimposed then energizes a resonant relay WS to close a circuit for frequency selector FW at each station, which, when operated energizes a relay IS to cause the generator G to superimpose. The coupling circuit to the mains is preferably tuned by condensers c and inductance d the latter being large compared with the mains inductance to prevent variations in the line from having an appreciable effect on tuning. The tuning of the coil may be effected automatically from a governor on the generator shaft. Each superimposing station may be adapted for independent operation by the provision of a starting switch S and hand operable members on the resonant relays WS. In a modification (Fig. 3 not shown) resonant relays may be connected to the mains to operate indicators and bridge the contacts of the last operated relay WS through a correcting key so that closure of the key will cause renewed superimposition to energize any controlled apparatus released by line disturbances. The correcting key may be closed at intervals by clockwork. In a further modification (Fig. 4, not shown) the superimposing stations are arranged to superimpose on sub-sections of the sections to which they are connected successively, the division into sub-sections being effected by grouping the feeders. The power transformers Tr in the feeders may be bridged by auxiliary transformers tr for the superimposed controlling currents as shown in Figs. 8 and 9.
Patent GB-450901-A (GB)
Title: Improvements in the treatment of fibres and fibrous materials
IPC: D06M13/402
Filed: 1935-06-20
Abstract: Fibres and fibrous materials are softened by the application thereto of a water-soluble amide of coconut fat, said amide not containing glycerides.  The amide may be applied pure or mixed with other substances or as a solution, e.g. in a hydrocarbon solvent. Filaments may be passed through the bath or steeped therein.ALSO:Fibres and fibrous materials are treated with a water-soluble amide of coconut fat, said amide not containing glycerides.  The amide may be applied pure or mixed with other substances &c. as a solution, e.g. in a hydrocarbon solvent.  The treatment, which facilitates sliding of the filaments may be employed instead of fatty dressings.
Patent GB-993923-A (GB)
Title: Hair colouring methods and compositions
IPC: A61Q5/10
Filed: 1963-05-06
Abstract: The invention comprises a process for dyeing hair and keratinous substances in which the hair or keratinous substance is treated with a mixture of a quinone compound and a mono or poly amino aromatic compound under oxidizing but substantially neutral conditions.  The quinone compound may be formed by oxidation of a polyhydric compound, and the amine compound has its amino groups attached directly to the aromatic ring.  The oxidation may be carried out by air oxidation or by using an enzyme.  The quinone compound may be formed by oxidation of catechol, adrenalin, pyrogallol or hydroguinone and many types of amines are specified. The process may be performed by partiall oxidizing the polyhydroxy material before application to the hair.
Patent GB-835260-A (GB)
Title: Improvements in and relating to flooring, primarily for vehicles
IPC: B62D25/20
Filed: 1956-06-08
Abstract: 835,260. Vehicle floors. DURAMIN ENGINEERING CO. Ltd., and OGLETHORPE, E. W. Aug. 23, 1957 [June 8, 1956], No. 17773/56. Class 108(1) An extruded metal floor comprises planks 5 with tongue 10 and groove 11 joints and with feet 17, 18 having ramp portions 20 for engagement with T-headed bolts 22 by which the floor is held down on to the cross bearers 8. Side raves 9 may be as shown or the outer side may be extended to engage below the bearers 8 to form a facia panel.
Patent GB-118954-A (GB)
Title: Improvements in or relating to Plant or Apparatus for the Quenching, Hardening, Tempering, or like Heat Treatment of Steel and other Metals and Alloys.
Inventor: DICKSON HENRY CHARLES
IPC: C21D1/63
Filed: 1917-12-01
Abstract: 118,954. Dickson, H. C. Dec. 1, 1917. Hardening; tempering.-In apparatus for quenching heated metal articles for hardening, tempering, &c., the articles fall from the furnace down shoots c, b in a bath of liquid a. The shoot b is arranged to be oscillated laterally by means of gearing j, h, to discharge the cooled articles into baskets n of which there may be one on each side of the shoot b. The basket n can be raised out of the liquid by gearing p, q, and then tipped to discharge the articles. Means may be provided for circulating and cooling the liquid.
Patent GB-601034-A (GB)
Title: Improvements in or relating to aircraft sustaining rotors
IPC: B64C27/00
Filed: 1945-07-12
Abstract: 601,034. Rotary-wing aircraft. FAIREY AVIATION CO., Ltd., and BENNETT, J. A. J. July 12, 1945, No. 17833. [Class 4] [Also in Group XXXII] In a rotary wing aircraft having two or more rotor blades either rigidly mounted or mounted on conventional flapping hinges and/or drag hinges, each blade is provided with one or more auxiliary masses so mounted on pivots attached to the blade as to constitute one or more small vibratory systems tuned tu twice the frequency of the rotor. As shown, the blades of a two-bladed rotor are mounted by means of hinges k inclined to the plane of rotation, and are provided with auxiliary masses m hinged about axes M-M. The restoring force on each-mass is provided by the component of centrifugal force at right angles. to the axis M-M. According to the Provisional Specification, the mass provided for counterbalancing a single-bladed rotor may be located on an arm attached to the blade by flapping and/or " drag " pivots so displaced from the axis of rotation that the natural frequency of the mass is twice that of the rotor. Alternatively, the rotor 'blade may be mounted on a pivot so inclined to the longitudinal axis of the blade and/or the rotational axis, and/or so displaced from the axis of rotation that the natural frequency of motion of the blade about the pivot is twice that of the rotor.