baber/WOPTO huggingface dataset:
Patent GB-575398-A (GB)
Title: Improvements in induction coils
IPC: H05B41/24
Filed: 1944-03-15
Abstract: 575,398. Induction coils. THORNTON, A. A. (Amglo Corporation). March 15, 1944, No. 4833. [Class 38 (ii)] [Also in Group XXXVII] An induction coil, particularly for energizing a discharge lamp from a battery, comprises a core 10 carrying primary and secondary windings 11, 12 and having an air gap 19 adjacent to which is mounted an interrupter 20 comprising a vibrating contact actuated by the fringing flux from the gap and a fixed contact consisting of a globule of mercury 53 into which the vibrating contact dips. The vibrating contact 61 is carried by an armature.56 on the tangentially extending end of a coiled spring 57 and is guided in its lateral movement in and out of the mercury globule by an extension 63 passing through an eye on the end of a guide member 59. Adjustment of the speed of operation and of the ratio of make to break is effected by vertical displacement of the interrupter in relation to the gap 19 through the medium of screw and nut mechanism 42, 40.
Patent GB-570823-A (GB)
Title: Ink fountain drive for use in printing presses
IPC: B41F31/00
Filed: 1944-03-15
Abstract: 570,823. Printing-machines. HADDAN, R. (Duplex Printing Press Co.). March 15. 1944, No. 4841. [Class 100 (ii)] . [Also in Group XXIV] In a printing-press in which the fountain rollers 8 is driven by a printing- couple, the drive of the roller 8 is maintained continuously in one direction independently of the rotation of the couple. A shaft 10 driven by the couple drives by a worm 11 a worm wheel 12 which when rotating in one direction drives a gear 15 by a uni-directional clutch, and when rotating in the reverse direction drives a gear 14 only by means of a second uni-directional clutch. The gear 15 drives the fountain roller 8 by direct engagement with a gear 20, and the gear 14 drives it by means of all idler gear which engages a gear 19 so that in either case the shaft 8a is driven in a constant direction. The uni-directional clutches are constituted by tapered bores 22, 23 in the gears 14, 15, in which rollers 18, 17 operate. The whole driving mechanism is enclosed in oil in a casing 30 secured at 32 to the frame of the machine, and formed with a seal for the shaft 10 to pass through.
Patent GB-341306-A (GB)
Title: Method and means for ascertaining the liquid contents of a closed container or vessel
IPC: G01F23/16
Filed: 1930-02-13
Abstract: 341,306. Measuring the quantity of liquid in a closed container. SCHISKE, R., 22, Pilgrimgasse, Vienna. Feb. 13, 1930, No. 4881. [Class 106 (i).] Comprises a method and means for determining the liquid contents of closed vessels by measuring the free space above the liquid. V<1> denotes the free space above the liquid in the chamber V and A is an auxiliary vessel in communication with the vessel V and constructed as a suction pump. The auxiliary vessel B is a suction pump of stroke " h." A liquid gauge D is connected to the vessel V and chamber B. An indicating pointer Z on the piston rod of the vessel A moves over a scale S. Relief valves K and L are provided as shown. In the normal position, Fig. 1, the piston of the vessel A is in the lowest position, and the piston of the vessel B in a predetermined position, the valves K, L are open and the liquid levels at the same height in the limbs of the manometer. The valves are now closed and the piston of the vessel B is drawn up to the extent " h " to create a partial vacuum. The piston of the vessel A is then moved through the space J to make the manometer levels again equal. If P0 is the pressure in the vessels V and A and if the auxiliary pressure is P1, then V1. P0 =(J + V1) P1. The ratio of P1 to P0 is kept constant say c, then V1 = cJ./l-c The value of c can be ascertained if the member B is cylindrical, the initial space in front of the piston being m and the volume of the stroke n. Then mP0 = (m + n) P1 and P1 =cP0, therefore c =m/m+n.Substituting for c in the first formula V<1> = Jm/n . The free space in the container V is proportional to J as the cross section of the vessel A is always the same and is known. The liquid volumes required may be read off on the scale S.
Patent GB-266714-A (GB)
Title: Submarine signalling cables
IPC: H01B7/14
Filed: 1927-02-21
Abstract: 266,714. Western Electric Co., Inc., (Assignees of Gilbert, J. J.). Feb. 27, 1926, [Convention date]. Loaded cables; cables with artificially modified capacity; armouring cables; cables, arrangement and disposition of parts of.-The invention relates to submarine signalling cables and consists in the provision, in such cables when loaded with magnetic tape, of a metallic tape for protection against the teredo worm so disposed around the insulation and of such high specific resistance as to reduce the eddy currents induced therein by the varying magnetic field. In the construction shown in Figs. 1 and 2, the cable comprises a central conductor 5 consisting of a strand 21 surrounded by tape 23, loading material 7 of high permeability at low magnetizing forces and a surrounding insulation 9 of gutta-percha etc. as described in Specification 184,774, 184,776 and 188,688. The teredo tape 11. which is applied over those portions of the cable lying in depths up to 100 fathoms, consists of an alloy, such as nickel-chromium, nickel-ironchromium, copper-manganese-aluminium, having a high specific resistance. Preferably the thickness of the tape is of the order of .004 inch and its width three times the diameter of the core so as to give a comparatively long lay with overlapping edges which are insulated from each other. In the construction of cable shown in Fig. 1, armouring wires 13 of high specific resistance material such as nickel-steel, chromium-steel, or Krupp steel, and having a long lay are embedded in the jute etc. covering 15 and may be individually wrapped with fabric tape 19. Fig. 2, shows a cable similar to that of Fig. 1, but having a metallic return path of the kind described in Specification 284,733. The magnetic loading may be omitted for the transmission of very high frequencies and, in that case, some or all of the armouring wires may be composed of or coated with copper. In a modification, the teredo tape may function as a loading strip. Specification 206,104, is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the invention included a return conductor consisting of a concentric layer of copper wires helically wound with a long lay and embedded in the jute between the teredo tape and the armouring wires. This subject-matter does not appear in the Specification as accepted.
Patent GB-780209-A (GB)
Title: Improvements in and relating to magnetostrictive transducers
Inventor: HALLIDAY WILLIAM
IPC: H03H9/22
Filed: 1955-02-18
Abstract: 780,209. Magnetostrictive devices. KELVIN & HUGHES Ltd. Feb. 7, 1956 [Feb. 18, 1955], No. 4977/55. Class 35. [Also in Group XXXIX] In a magnetostrictive transducer intended for underwater use, a number of nickel laminations 10 assembled in a stack are polarized to different extents by sintered permanent magnets 21 so that the radiation from the vibrating face 11 of the stack decreases from the centre outwards. The object of the arrangement is to modify the radiation polar diagram by reducing or eliminating the secondary lobes. As shown, the permanent magnets are fitted in slots 19, 20 in the laminµ, and the stack is held together between end-pieces 23, 24 by grooved side straps 25 which engage ribs 26 projecting from each component. A single winding 22 is fitted to the assembly and encircles limbs 16, 17 which are formed in each lamination by apertures 12, 13, 14. The graded polarization is effected by magnetic shunts which are fitted between the end-pieces, two different forms of shunt 27, 28, both including air gaps being shown in the Figures. In one arrangement a strip 27 of magnetic material has a crosssection which is a minimum at the centre and increases towards both ends. Alternatively, a bowed strip 28 of uniform cross-section may be used. It is suggested that, as an alternative to the shunts, use may be made of tapered magnets or of a number of discrete magnets of differing strength.
Patent GB-430236-A (GB)
Title: Compositions for the production of azo dyestuffs
IPC: D06P1/02
Filed: 1933-12-12
Abstract: Compositions for producing azo dyes are made by mixing aromatic nitramines or salts thereof with coupling components in the presence of an alkali and a water-soluble nitrite.  Water-soluble salts and/or stabilizing agents may also be added.  The nitramines may be prepared by any known method.  In examples the following mixtures are specified: (1) sodium o-nitrophenylnitraminate, caustic soda, 2 - hydroxy - 3 - naphthoylaniline, sodium nitrite and sodium phosphate; (2) 1 - methoxy - 4 - nitro - 6 - nitraminate of sodium, m-nitranilide of 2 : 3-oxynaphthoic acid, caustic soda, sodium carbonate, sodium nitrite and sodium fluoride; (3) 1-methoxy-3-nitro-6-phenylnitraminate of sodium, 4-hydroxynaphthylphenylketone, caustic soda, sodium nitrite and sodium carbonate.  Samples have been furnished under Sect. 2 (5) of compositions containing the following ingredients: (4) sodium salt of 2 : 5-dichlorphenylnitramine, caustic soda, 2 - hydroxy - 3 - naphthoic acid anilide, sodium nitrite and phosphate; (5) sodium salt of 2 : 5-dichlorphenylnitramine, caustic soda, 2 - hydroxy - 3 - naphthoic acid - o - anisidide, sodium nitrite, fluoride, carbonate and phosphate; (6) sodium salt of 2 : 5-dichlorphenylnitramine, caustic soda, sodium nitrite, and formate and diacetoacetic-o-tolidide; (7)--(10) sodium salt of 2 : 5 - dichlorphenylnitramine, 2 - methyl - 5 - chlorphenyl - 1 - nitramine, sodium salt of 2 - methyl - 4 - nitrophenyl - 1 - nitramine or 4 - chloro - 2 - aminodiphenylether-nitramine, the anilide or o-toluidide of 2 : 3 - oxynaphthoic acid or p-cresotinic acid-o-tolidide, caustic soda, sodium nitrite and sodium formate.  Other nitramines, coupling components, alkalies and water-soluble salts are mentioned in the Specification. Specification 430,222 is referred to.
Patent GB-355197-A (GB)
Title: Improvements in and relating to cork stoppers
IPC: B65D39/00
Filed: 1930-02-14
Abstract: 355,197. Corks for bottles. HENNES, H. BOEHM-, 137, Brunnengasse, Neuses, near Coburg, Germany. Feb. 14, 1930, No. 4993. Convention date, Nov. 29, 1929. Void [Published under Sect. 91 of the Acts]. [Class 125 (iii).] A cork stopper a for bottles &c. is provided with a covering b of cellulose sheet which fits tightly without folds over the cork and overlaps the marginal part f of the upper surface thereof. A milled metal cap g is fitted to the top of the cork. The cellulose covering is shrunk on to the cork.
Patent GB-539465-A (GB)
Title: Improved circuit arrangements for operating electric discharge lamps
IPC: H05B41/06
Filed: 1940-03-19
Abstract: 539,465. Discharge lamps. BRITISH THOMSONHOUSTON, CO., Ltd., and SCOTT, W. J. March 19, 1940, No. 5066. [Class 39 (i)] [Also in Groups XXXV and XXXVII] In a circuit for operating lowpressure discharge lamps of the type comprising thermionic filamentary cathodes which are preheated to 'initiate the discharge, the heating current being discontinued during the normal operation of the lamp, a switching arrangement is provided for putting the filamentary cathodes in circuit with the source of heating current and subsequently connecting the ends of the filaments together so that all parts thereof are at the same potential. The switch may be electromagnetically operated, or of the thermal responsive type such as described in Specification 532,490, [Group XXXVII]. The arrangement described is a glow discharge device comprising two fixed contacts 5, 6 and two bimetallic elements 3, 4 carrying contact member 7, 8. The contacts 6, 8 and 5, 7 are connected to the ends of the filamentary cathodes of a discharge lamp operating on A.C. When the operating current is first supplied, the glow discharge between the elements 3, 4 causes these elements to deflect until the contacts 7, 8 short circuit the glow discharge causing a relatively heavy heating current to pass through the filaments, and allowing the elements to cool, whereby they return to their normal position closing the contacts 6, 8 and 5, 7.
Patent GB-452424-A (GB)
Title: Manufacture of dyestuffs of the anthraquinone series
IPC: C09B1/34
Filed: 1935-02-16
Abstract: Anthraquinone dyes capable of being chromed are prepared by reacting a 4-halogen substituted 1-hydroxy, 1-amino-, 1-alkylamino-or 1-arylamino-anthraquinone which (a) contains no sulpho group in the anthraquinone nucleus, with an aromatic amino-o-oxycarboxylic acid or an ester thereof and then sulphonating the products, or with a sulphonated aromatic amino-o-oxycarboxylic acid or an ester thereof; or (b) contains one or more sulpho groups in the anthraquinone nucleus, with either of the reactants specified under (a) and then spitting off these sulpho groups attached to the anthraquinone nucleus by heating the product with an alkaline solution of hydrosulphite or with dilute sulphuric acid.  A modification comprises sulphonation of the condensation product of a leuco quinizarin with an aromatic amino-o-oxycarboxylic acid or an ester thereof and oxidation of the product.  The dyes may be after-chromed on the fibre or converted into chromium lakes which may then be applied to the fibre giving in both cases fast grey to green dyeings. In examples: (1) leuco quinizarin is condensed with 5- and 3-amino-2-oxybenzoic acid methyl esters, the respective products saponified while air is introduced, and then sulphonated with monohydrate in presence of boric acid; (2) 4-chlor-1-hydroxyanthraquinone is condensed with 5- and 3-amino-2-oxybenzoic acids and the respective products sulphonated, or with 5- and 3-amino-2-oxy-5-sulphobenzoic acids respectively; (3) 1-amino-4-chloranthraquinone is condensed with 5- and 3-amino-2-oxybenzoic acids and the respective products sulphonated with monohydrate; (4) 1-methylamino-4-bromanthraquinone is condensed with 5- and 3-amino-2-oxybenzoic acids and the respective products sulphonated with monohydrate, or with 5-amino-2-oxy-3-sulphobenzoic acid; 1-ethylamino-4-bromanthraquinone is similarly condensed with 5-amino-2-oxybenzoic acid and the product sulphonated; (5) 1-dichloranilido-4-chloranthraquinone derived by chlorination of the anilido body, is condensed with 3-amino-2-oxybenzoic acid and the product sulphonated; (6) 1-oxy-4-bromanthraquinone-2-sulphonic acid is condensed with 5- and 3-amino-2-oxybenzoic acids or with 5-amino-3-sulpho- and 3-amino-5-sulpho-2-oxybenzoic acids respectively, the b -sulpho group in the anthraquinone residue is eliminated by the action of alkali hydrosulphite, and then in the case of the first two products a sulphonation treatment follows; (7) 1-amino-4-bromanthraquinone-2-sulphonic acid is condensed in the same way as in (6) instead of 1-oxy-4-bromanthraquinone-2-sulphonic acid; (8) 1-oxy-4-bromanthraquinone-2-sulphonic acid is condensed with p-aminobenzoyl - 1 - amino - 2 - oxy - 5 - sulphobenzene -3-carboxylic acid and 4-amino-3<1>-carboxy-4<1>-oxy-5<1> -methyldiphenylmethane respectively, the b -sulpho group eliminated by treatment with alkali hydrosulphite, and in the case of the latter product a sulphonation treatment follows.
Patent GB-1451979-A (GB)
Title: Mechanical drive protection devices
IPC: F16D3/84
Filed: 1974-02-05
Abstract: 1451979 Machinery guards E BONDIOLI 5 Feb 1974 [19 Feb 1973] 05152/74 Heading F2J  A non-rotary guard for a universally jointed shaft comprises a moulded resin plastics hood 1 mounted on the jointed shaft by a replaceable split i.e. open annular moulded resin plastics ring 7 which may be snapped into a groove on the jointed shaft and located in an internal seating 3 in the hood 1, the ring 7 being locked to the hood 1 by eccentric headed moulded resin plastics buttons 12 (Fig. 2). The hood 1 may be used with varying internal sized rings (5) (Fig. 11 not shown) to suit different sized jointed shaft assemblies. A chain (not shown) hooked on an extension 16 of the ring 7 radially projecting through the hood 1 (Fig. 1), prevents rotation of the guard assembly.
Patent GB-1208231-A (GB)
Title: beta-PHENETHYLAMINE DERIVATIVES AND A PROCESS FOR THE MANUFACTURE THEREOF
IPC: A61K31/135
Filed: 1969-01-30
Abstract: 1,208,231. Phenethylamine derivatives. F. HOFFMANN - LA ROCHE & CO. A.G. 30 Jan., 1969 [14 Feb., 1968], No. 5181/69. Heading C2C. Compounds of the general Formula (I) (R 1 , R 2  = OH, C 1-6  alkoxy; R 3  = C 1-6  alkyl) and their salts are prepared by either hydro. genolysing or hydrogenolysing and reducing as the case may require a compound of the Formula (II) (R 4 , R 5  = aralkoxy; C 1-6  alkoxy; R 6  = aralkoxy; X = or hydrolysing a compound of the Formula (III) (R 7 , R 8  = acyloxy, C 1-6  alkoxy; R 9  = acyloxy), optionally followed by salt formation and/or resolution. The preparation of starting materials of Formulµ (II) and (III) by standard methods and of 3,5 - dibenzyloxy - 4 - methoxyphenylacetone, 1 - (3<SP>1</SP>,5<SP>1</SP> - dibenzyloxy - 4 - methoxyphenyl) - 2 - nitropropene, 3<SP>1</SP>,5<SP>1</SP> - dibenzyloxy - 41 - methoxy - (2 - nitro - 1 - butenyl)benzene, 3,5 - dibenzoyloxy - p - anisaldehyde, 3<SP>1</SP>,5<SP>1</SP> - dibenzoyloxy - 4<SP>1</SP> - methoxy - 2 - nitropropenylbenzene, 3,5 - dibenzoyloxy - 4 - methoxyphenylacetone and 3<SP>1</SP>,4<SP>1</SP> - dibenzyloxy - 5<SP>1</SP>- methoxy - 2 - nitropropenylbenzene is described. The compounds of the invention are hypotensive agents and may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, in association with a carrier.
Patent GB-1249974-A (GB)
Title: Improvements in or relating to the production of workpieces by moulding
IPC: B23P15/24
Filed: 1967-09-27
Abstract: 1,249,974. Making dies; forging; casting. MOLINS MACHINE CO. Ltd. and P. H. C. WADDINGTON. 25 Sept., 1968 [27 Sept., 1967; 23 Nov., 1967], Nos. 5328/71 and 5329/71. Headings B3A, B3F and B3H. The description is substantially identical with that of Specification 1,249,973 but the claims relate to the making of an article using a mould whose shape is determined using a transparent sheet with grid lines and a two-dimensional representation of the article.
Patent GB-124292-A (GB)
Title: Producing a Soundless and Flashless Discharge of Guns.
Inventor: SPIRE ALBERT EDWARD
IPC: F41A21/28
Filed: 1918-03-27
Abstract: 124,292. Spire, A. E. March 27, 1918. Sound of discharge, modifying; flash of discharge, obscuring.-Relates to devices attached to a gun barrel for obscuring the flash and deadening the sound of discharge, and consists in providing a vacuum chamber 2 connected with the barrel 1 by way of a port 3 behind the muzzle, and also with an expansion tube 6, this tube, together with a pipe 5, leading from a rear vent 4, constituting an ejector to induce the flow of gas from the chamber 2. The tube 6 is provided with holes surrounded by an expansion chamber 7 which acts as a silencer.
Patent GB-766631-A (GB)
Title: Improvements in and relating to the production of stereoscopic pictures
IPC: G03B27/28
Filed: 1953-02-26
Abstract: 766,631. Stereoscopic pictures. SPOTTISWOODE, R. J. Feb. 26, 1953, No. 5414/53. Addition to 708,644. Classes 97(1) and 98(2) The left and right eye pictures of a stereoscopic pair, for viewing a projection, are each surrounded by a mask, the two masks being shaped to be stereoscopically fusible along their horizontal as well as their vertical edges by the provision in the horizontal edges, of a profile or internal patterning having vertical components.
Patent GB-1159800-A (GB)
Title: Improvements in and relating to High Vacuum Valves.
IPC: F16K51/02
Filed: 1967-02-03
Abstract: 1,159,800. Valves. BALZERS PATENTUND BETEILIGUNGS A.G. 3 Feb., 1967 [5 Feb., 1966], No. 5449/67. Heading F2V. A high vacuum valve, usable in ultra-high vacuum applications, comprises a valve casing 1 having gas inlet and outlet connections 2, 3 respectively and a doublesided metallic valve seat 4 disposed between them, the two sides of the seat being engageable by two metallic pistons 5, 6. Both pistons are movable towards, and forced on to, their respective seats with equal, but oppositely directed forces, these being derived from two further, hydraulically actuated, pistons 11 and 12, of which the first is directly connected to piston 6 by a rod and the second to piston 5 by a frame, (15, Fig. 2, not shown), engaging rods 14 and 17. The space between the closure pistons, when these are seated, may be evacuated by way of a channel which extends through the rod and is connected, via duct 19, to a vacuum pump. The connection 3 may be substituted by the one marked in broken lines and indicated at 22 so forming an angle valve.
Patent GB-915366-A (GB)
Title: Process for applying treatment to tuberous, bulbous and other root crops
IPC: A01F25/02
Filed: 1960-02-16
Abstract: 915,366. Storing root crops; preventing sprouting and disease. DEN HERDER, J., and DEN HERDER, P. W. Feb. 16, 1960, No. 5479/60. Classes 5(1) and 58. [Also in Group XXVIII]. A method of treating potatoes or other root crops during storage to prevent sprouting and disease, comprises blowing into the storage place, through injector tubes, (see Group XXVIII) a mixture of compressed air and treating powder. As shown in Fig. 1, compressed air from a compressor unit 1 is supplied with treating powder from the hopper 3 and is discharged from the injector tubes 4 among the roots. The air escapes from the covering of straw 8 and earth 9 placed over the roots via outlets 5. The introduction of the injector tubes into the storage place is facilitated by passing air through the tubes as they are being inserted between the roots.
Patent GB-771260-A (GB)
Title: Electric battery of the flat cell type
IPC: H01M6/46
Filed: 1955-02-23
Abstract: 771,260. Batteries. PILES WONDER. Feb. 23, 1955 [March 2, 1954], No. 5482/55. Class 53. A battery has a number of superimposed flat cells each having a two-part insulating casing having top and bottom control apertures arranged to be closed by metal members. In the Figure each cell has a casing formed of a body 1 with an aperture 3, and a cover 7 with an aperture 9. The aperture 3 is covered by a metal disc 4 on which a carbon disc 5 is placed. The cover 7 carries the electrolyte 16 and a zinc disc 14, and the aperture 9 is closed by a metal terminal member 11. The walls 2 at the periphery of the case body 1 define an annular space serving as an expansion chamber to collect excess of electrolyte.
Patent GB-457192-A (GB)
Title: Diesel engines with a special combustion chamber
IPC: F02B23/06
Filed: 1935-02-20
Abstract: 457,192. Oil engines. RAIMONDI, R., and CAITJMI, A., 2, Via della Pace, Modena, Italy. Feb. 20, 1935, Nos. 5520 and 5521. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 26, 1935]. [Class 7 (iii)] Fuel is injected from an injector 1 into a pear-shaped combustion chamber 2 formed in the cylinder head or in the piston. The chamber communicates with the cylinder space through a row of holes, or an elongated slot 3, Fig. 2, or through ports 4, 5, Fig. 5, at opposite ends of the chamber. Two or more chambers may be arranged radially and fed by a single injector.