baber/WOPTO huggingface dataset:
Patent GB-750125-A (GB)
Title: Improvements in or relating to signal transmission systems
IPC: H03H9/46
Filed: 1952-01-25
Abstract: 750,125. Electromechanical delay lines. STANDARD TELEPHONES & CABLES, Ltd. Jan. 25, 1952 [March 28, 1951], No. 2105/52. Class 40 (8). In a transmission system for compressional wave energy, a number of transducer units are spaced along the guide for the energy, and each is operated by connection to an individual point so spaced along an electric delay line carrying the signal to be transduced, that the compressional wave energy at each transducer point is in phase with the electrical energy at the corresponding point of the delay line. As shown in the electromechanical delay line of Fig. 2, waves are generated at several points along a bundle 1 of magnetostrictive rods by coils 7, 8, 9 and 10, which are enclosed in metal cups forming a magnet circuit in association with the bundle 1. The coils are connected at separate points so spaced along an electric delay line 5 that the successive waves combine to form a single wave progressing along the bundle from left to right. The receiving end of the delay line includes several coils spaced along the bundle 1, the signals they pick up being combined by connecting them to points spaced along an electrical delay line. A single movable pick-up coil 24 may be provided between the sending and receiving assemblies. In an alternative construction a tube of piezoelectric material is used with electrodes spaced thereon instead of coils. Another construction forms waves in a liquid or gas contained in a tube with a series of piezo-electric generators or receivers along its length. Finally, a slab of piezo-electric material as shown in Fig. 6 may be used, signals passing between transmitting electrodes 47 and receiving electrodes 51 along a path 49 that includes multiple reflections at the edges of the slab.
Patent GB-1014987-A (GB)
Title: Improvements in or relating to cine projectors
Inventor: CHYTIL SLAVOMIR
IPC: G03B1/56
Filed: 1964-01-18
Abstract: 1,014,987. Cine projectors. MEOPTA NARODNI PODNIK. Jan. 18, 1964, No. 2300/64. Heading G2E. A self-threading cine projector feeds film 15 from reel 101 via sprocket 7 through gate 10 automatically, the film then entering curved guides 2, 3 which together form a film track to sprocket 4 and take-up reel 102. A sound unit 11 may be positioned below projector 1 by pins 111, 112, when lug 12 cams guide 3 horizontally against spring 5 until pin 17 abuts the end of slat 31. Film 15 cannot then enter the current track and is guided by means, not shown, through sound head 14 as in Fig. 2 before reaching sprocket 4.
Patent GB-1018189-A (GB)
Title: Improvements in or relating to silencers for exhaust steam
IPC: F01K19/10
Filed: 1963-01-18
Abstract: 1,018,189. Exhaust silencers. VON ROLL A.G. Jan. 18, 1963 [Jan. 19, 1962], No. 2385/63. Heading F1B. Exhaust steam is silenced in passing through a bed of pebbles 6 contained between perforated walls 4a, 5a, of a cylindrical chamber 1.
Patent GB-580360-A (GB)
Title: Improvements in or relating to extensible tables
IPC: A47B1/00
Filed: 1940-02-07
Abstract: 580,360. Tables. MEGIES, A. Feb. 7, 1940, No. 2388. Convention date, Feb. 7, 1939. [Class 52 (iii)] An expanding table has a central portion 1 supported by legs 3, which 'may be vertically adjustable, surrounded by an annular portion which is deformable in its plane in a variable manner in various radial directions, and surrounded by an extensible girdle formed by a series of segments 8, 9. The deformable part may be formed by a number of corrugated ribbons 6 united at various parts and may be supported by sliding horizontal rods 13 fixed to the segments 8, 9. The rods may be displaced by simply pushing or pulling but are preferably moved mechanically by racks 20 attached thereto and operated by pinions 19 on a shaft operated by a crank 15 through a worm and worm wheel drive. The height of the table may be varied by telescopic legs 4 sliding in tubes 3 and adjusted by cables 24 attached at 26 to the tubes 3 and passing over pulleys 27, 29. The pulleys 27 are mounted on pivots fixed on the outer tubes and sliding in slots 28 in the inner tubes. The cables pass around pulleys 30 Fig. 5 and are displaced by a lever 32 which may be held at different points by recesses in a slot 34.
Patent GB-551431-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/42
Filed: 1942-02-24
Abstract: 551,431. Automatic exchange systems. WESTERN ELECTRIC CO.. Inc. Feb. 24, 1942, No. 2394. Convention date, Jan. 24, 1941. [Class 40 (iv)] In a system in which digits are transmitted to registers in the form of single impulses of alternating current comprising a number of frequencies, the number being the same for all digits, the channel detectors, which recognize the individual frequencies, control relays which apply a marking potential to single wires or combinations of wires in accordance with the digit only if the received signal comprises the correct number of frequencies. As shown, there are five possible frequencies and a correct signal comprises two of them. When the circuit is seized, relays R, T pull up and on the reception of a signal, relay 120 connects up the cathodes of the channel detector valves, a pair of relays A ... E is operated and an appropriate marking is extended over the wires 1, 2, 4, 5 and Z to registers 130 which may be part of a sender as described in U.S.A. Specification 1,862,549. The marking paths extend over a common point which is only connected to the marking potential when two and only two channel relays are operated. In these circumstances a relay N connected to this point pulls up, prevents the operation of a relay W and disconnects T, R which fall sluggishly, release the channel relays and temporarily ground the transfer wire 119. Relay N then falls again, R, T re-operate and the circuit is ready for the next digit. If however the number of channel relays operated is incorrect, N is not operated, no marking potential is forwarded to the registers 130, relay W pulls up to give an alarm and the relapse of T, R is prevented.
Patent GB-939149-A (GB)
Title: Production of ketoxime hydrochlorides
Inventor: METZGER HORST
IPC: C10G11/18
Filed: 1962-01-23
Abstract: In a process for the production of ketoxime hydrochlorides by the action of nitrosating agents on aliphatic, araliphatic or cycloaliphatic hydrocarbons in the presence of actinic light, the light source is coated with an uninterrupted coherent layer of a substance in a solid form deposited by crystallisation or sublimation, this substance being the hydrocarbon reactant or an inert organic compound soluble in the reaction mixture.  This coating on the light source is said to prevent the formation of a yellow-brown coloured coating upon the light source, thus preventing any decrease in the transmission of light from the source.  The thickness of the crystal coating may be from 0.1 to 1.0 cm.  The temperature of the reaction is maintained in the range of -30 DEG  to +40 DEG C. and a temperature gradient is maintained between the light source and the reaction medium such that the crystal coating is preserved throughout the reaction.  A suitable light source is an 80 watt mercury lamp providing light of wave length 200 mm  to 600mm . Nitrosating agents specified are nitrosyl chloride, nitrogen monoxide and chloride, alkyl nitrites and hydrochloric acid, nitrous gases and hydrochloric acid, and nitrosylsulphuric acid and hydrochloric acid. Hydrocarbons specified as starting materials are n-hexane, n-heptane, toluene, ethylbenzene, xylenes, cyclopentane, fluorene, cyclohexane, decahydronaphthalene, cycloheptane, cyclooctane and cyclododecane; and they may be dissolved in inert solvents such as benzene, carbon tetrachloride, chloroform or monochlorobenzene.  Inert organic compounds suitable for the crystal coating are naphthalene, anthracene or hexachlorethane.  Four examples are given, illustrating the difference in yield and purity of ketoxime hydrochloride obtained when the reaction is carried out with and without the crystal coating on the light source.  In Examples 1, 2 and 3, the crystal coatings are of cyclohexane, cyclooctane and cyclododecane respectively, and, in Example 4, a crystal coating of naphthalene is used when treating decahydronaphthalene with nitrosating agents.
Patent GB-951892-A (GB)
Title: Improvements in and relating to covers for ironing boards
IPC: D06F83/00
Filed: 1962-01-23
Abstract: 951,892. Ironing board covers. A. H. LONG. Jan. 22,1963 [Jan. 23, 1962], No.2454/62. Heading D1A. An ironing board cover comprises a length of linen, canvas or the like having at its longer edges and one end a hem for a draw cord 6, and at the other end two straps 11,13 adapted to extend transversely underneath the board. Reinforcing sheaths for the cord 6 are provided by a transverse hem 7 and the ends of the straps 11,13 secured to the length of fabric. A lining 8 of foamed plastic or blanket material is stitched to the cover at 10.
Patent GB-1443075-A (GB)
Title: Trimmer capacitor with a non-rotating movable electrode
IPC: H01G5/14
Filed: 1974-01-18
Abstract: 1443075 Variable capacitors JACKSON BROS (LONDON) Ltd 28 Nov 1974 [18 Jan 1974] 2505/74 Heading H1M In an air dielectric variable capacitor the rotor electrode comprises two concentric hollow cylindrical parts 32b, 34c which in the assembled state provide an annular space into which hollow cylindrical part 14c of the stator fits, the rotor further comprising inwardly directed lugs 35 engaging slots 22 in guide member 20 whereby the rotor is prevented from rotating when it is moved axially by the adjusting means. As shown the stator and the guide member 20 have respective shoulders 14b, 20b which are press fits and adhesively secured in opposite ends of insulating cylinder 12. The adjusting means comprises screw 38 co-operating with threaded portion 34a of the rotor, which portion is split as shown to provide by its resilience good contact with the screw and also to provide a "slipping clutch" mechanism at the limits of movement of screw 38.
Patent GB-938241-A (GB)
Title: Pineal gland extracts
IPC: A61K35/30
Filed: 1962-01-23
Abstract: A pineal gland extract rich in an active substance termed I.P.F. (Inhibitor Pineal Factor) is obtained by (1) homogenizing the fresh pineal glands of animals especially cattle in the presence of an inert, anhydrous, water-miscible, non-solvent liquid and separating the homogenized gland material thus obtained in powder form from the said liquid; (2) extracting the said powder with an aqueous alkaline medium at pH 8.5-9; (3) acidifying the extract so obtained to a pH of 4.3 to 4.8 and removing fat therefrom; (4) treating the acidified, fat-free extract with an inert, water-miscible, nonsolvent liquid and separating the precipitate produced; and (5) dissolving the said precipitate in water, treating the solution thus obtained successively with a basic and an acidic ion-exchange resin, eluting water-soluble I.P.F. from the acidic resin with a dilute strong acid, and precipitating water-soluble I.P.F. from the acid solution thus obtained by treatment with an inert, water-miscible, non-solvent liquid, e.g. acetone containing 10% diethyl ether. Acetone may be used in (1); aqueous sodium hydroxide in (2); diethyl ether or petroleum ether in (3); acetone with 10% diethyl ether in (4); the basic ion-exchange resin contains quaternary ammonium groups, e.g. Amberlite IRA401, and the acidic ion-exchange resin contains carboxylic acid groups, e.g. Amberlite IRC50.  The fat fraction produced by the fat-removal step (3) is treated with a solution of digitonin in a mixture of ethanol and ether to remove cholesterol and produce cholesterol-free fat-soluble I.P.F.  A therapeutic composition comprises the water-soluble I.P.F. and/or the fat-soluble I.P.F. in association with a pharmaceutically acceptable carrier. The activity of the composition is enhanced by the addition of testosterone, androstan-3-(a )-ol-17-one or methylandrostendiol.
Patent GB-449487-A (GB)
Title: Improvements in and relating to the manufacture of electric discharge devices
IPC: H01J5/32
Filed: 1935-01-25
Abstract: 449,487. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London. - (Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Jan. 25, 1935, No. 2570. [Class 39 (i)] [See also Group XI] In a discharge device of the type having an envelope mainly or wholly of quartz or like vitreous material and containing vapour of a metal or like substance, the density of which at full operation greatly exceeds that at atmospheric temperature, each leading-in conductor 19 passes through an aperture 8 in the envelope fitting it very closely, and an air-tight cap 5 of glass through which conductors can be sealed in the ordinary manner is sealed to the envelope so as to cover the apertures, a leading-in conductor 6 being sealed through the cap and connected within the cap to the leading-in conductor 19. An air-tight seal is obtained without the usual seal employing metallic lead which might be attacked by the vapour filling. The portion 8 containing the aperture has a flared portion 9 sealed to the envelope and may be of quartz as in Fig. 1 or of glass intermediate in expansion between quartz and the material of the cap 5. In the latter case, the portion 9 is sealed to the appropriate part of the graded seal 4 which joins the cap to the envelope, as shown in Fig. 2. The conductors 6 and 19 are joined by a sintered mass 13 of nickel-iron alloy contained in a cupshaped extension of the portion 8. The cap may be originally evacuated or filled with the same permanent gas as is contained in the discharge space. Specification 18371/12, [Class 39 (i)], is referred to.
Patent GB-575175-A (GB)
Title: Improvements relating to incandescent electric lamps
IPC: H01K1/18
Filed: 1944-02-11
Abstract: 575,175. Incandescent lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES Ltd., and ALDING- TON, J. N. Feb. 11, 1944, No. 2592. [Class 39 (ii)] A brilliant light source for an incandescent lamp comprises a number of separate but electrically and mechanically similar helically coiled filaments 19 lying co-planar with one another between a pair of conductors 8, 9 to which the ends of the filaments are connected. each helix being so arranged that equipotential points on neighbouring filaments may be in contact as shown in Fig. 2. The filaments may be of the single coil or coiled-coil variety. The pitch of the filament helix, where it comprises a single coil or the secondary helix of a coiled-coil filament preferably lies between 115 per cent. and 190 per cent. of the diameter of the single coil or of the diameter of the primary helix of the coiled-coil. The ends of filaments are secured to the conductors 8, 9 by spot welding, or by means of clamping members 11 or 12, Figs. 2, 3 and 4. For long filaments, an intermediate support may be provided, consisting, e.g., of a wire helix of which the indivdual turns are interlinked with equipotential points on the filaments. This helix may be supported at intervals on a metal rod. A mirror may be formed on the interior of the lamp to produce an image adjacent to, and appearing as a continuation of the source. Groups of co-planar filaments may be arranged at desired angles to one another to emit light in different directions. A gas filling with a mixture of gases to provide high thermal conductivity may be used according to the Provisional Specification.
Patent GB-1101625-A (GB)
Title: System and method for automatically transferring a wet fibre mat from a fourdrinier wire to a pick-up conveyor belt
IPC: D21F2/00
Filed: 1966-01-20
Abstract: The transfer of a wet fibre mat-e.g. a paper web-from a Fourdrinier wire to a pick-up conveyor is aided by means of a stationary suction box mounted in the loop of the pick-up conveyor and having a convex curved face contacted by the conveyor.  The box may comprise a hollow perforated cylinder or a sector thereof.  The conveyor may comprise a wear-resistant incompressible pervious belt of polyamide or polyester fibres with optionally an outer belt of an absorbent material, e.g. a felt.
Patent GB-920357-A (GB)
Title: Improvements in electric terminal block arrangements
IPC: H01R9/26
Filed: 1960-01-25
Abstract: 920,357. Stud and socket fastenings. C. GLASEL, and G. GLASEL, [trading as C. A. WEIDMULLER K.G.]. Jan. 25, 1960 [Jan. 28, 1959], No. 2637/60. Class 44. [Also in Group XXXVI] Terminal blocks 2 which are retained in snapfastener engagement with an asymmetrical supporting rail 1 by spring catches 4 may be positively secured to the rail by a locking pin 6 which is passed either through the catches 4 to prevent their retraction, as shown in Fig. 1, or, through apertures 32 in the blocks 2, Fig. 10, the ends then being anchored to the rail for example by screws 33, which serve as end stop members and which may also serve to attach the rail to a support 24. Fig. 2 shows another construction wherein end angle members 7 clamped to the rail by screws 9 are apertured and slotted to receive the end of pin 6. The upper ends of members 7 may be bent over to support an identity plate. A modified end support 18 is shown in Fig. 7, consisting of a T- shaped member of resilient plastic material apertured at 29 for the passage of pin 6 and having an offset clamping screw 21.
Patent GB-1561832-A (GB)
Title: Cationic azo dyestuffs
IPC: C09B44/08
Filed: 1976-01-23
Abstract: The dyestuffs are free of carboxylic acid and sulphonic acid groups and correspond to the formula (I) <IMAGE> in which R, R<1>, Y, A, K<(+)> and X<(-)> have the meaning given in Claim 1. They are prepared by diazotising an aromatic amine of the formula (II) <IMAGE> and coupling the resulting diazonium salt with a pyridone of the formula (III) <IMAGE> or coupling it with an acylacetic acid ester and then reacting the coupling product in the presence of a catalyst and of a solvent with a salt of an acetamide containing a cationic group. The dyestuffs can be used for dyeing or printing synthetic polymer materials in the form of tapes, strips, fibres, foils, threads and textile materials generally and are particularly suitable for dyeing or printing polymers and copolymers of acrylonitrile and of dicyanoethylene and also of acid-modified polyesters and polyamides.
Patent GB-746888-A (GB)
Title: Work transfer device
IPC: B65G49/02
Filed: 1954-01-29
Abstract: 746,888. Endless conveyers; loading and unloading overhead tracks; UDYLITE RESEARCH CORPORATION. Jan. 29, 1954 [Feb. 16, 1953], No. 2810/54. Classes 78 (1) and 78 (4). Articles 28 to be treated in a plating bath 1 are conveyed along a rail 10 to a position adjacent rails 11a, 6, 11b by carriages 14 suspended from the rail 10 by rollers 13 and connected to an endless chain 29. Each article is supported from its carriage by a member 25 having hook elements 26, 27, the element 26 engaging a member 17 pivotally mounted on the carriage and normally hanging vertically downwards. On approaching the rail 11a the member 17 engages a cam bar 20 and slides up an inclined section 24 into engagement with a horiontal section 22 whereby it is swung into a horizontal position and the element 27 is brought above the rail 11a as shown in Fig. 2. When the member 17 reaches the end of the section 22 it slides down an inclined section 24a and the element 27 falls down upon the rail 11a from which the member 25 is then suspended. The article is then transferred to the rail 6 by a finger 32 on a piston rod 31 operating in a cylinder 30 and the rail then transported bodily by a mechanism 7 to the plating bath 1. After plating, the article is returned on the rail 6 to a position between the rails 11a, 11b and then transferred to the rail 11b by a finger 33 on the rod 31. As a member 17 moves past the rail 11b it is raised to a horizontal position in engagement with the section 23 of the cam bar 20 and engages beneath the hook element 26 of the member 25 supporting the article on 'the rail 11b so as to raise the member 25 and disengage the element 27 from the rail 11b. The member 25 eventually moves beyond the rail 11b and the member 17 moves from the cam section 23 down an inclined section 24b to the section 21 whereby the member 17 falls to a vertical position and the article supported again on the track 10.
Patent GB-546427-A (GB)
Title: Improvements in device for holding metallic strips in contact with conductor rolls
IPC: C25D17/00
Filed: 1942-03-03
Abstract: 546,427. Electroplating strip metal. TRIGGS, W. W. (Carnegie-Illinois Steel Corporation). March 3, 1942, No. 2815. [Class 41] Metal strip S to be electro-plated is held in contact with a conductor roll 2, from which it enters the plating bath, by a pair of indiarubbercovered rolls 6 supported by pivoted arms 8 to which are also attached shafts 10 carrying eccentrics 12 rotatable within eccentric straps 14 forming part of turnbuckles 15 anchored to the supports 3 of the conductor roll. Rotation of the eccentrics 12 is effected by hand levers 16 mounted on the shafts 10, movement of which levers from the full-line positions shown to the dotted line positions causes the rolls to move away from the conductor roll 2 and allows the metal strip to be threaded over the roll.
Patent GB-545409-A (GB)
Title: Improvements in or relating to urea formaldehyde adhesives
IPC: C09J161/24
Filed: 1940-02-14
Abstract: 545,409. Urea-formaldehyde adhesives. AERO RESEARCH Ltd., and RAYNER, C. A. A. Feb. 14, 1940, No. 2849. [Class 2 (iii)] A method of producing adhesive condensation syrups by refluxing together, in slightly acid solution, a mixture of formaldehyde and urea, thio-urea or a mixture thereof, is characterized, by the addition to the mixture, prior to refluxing, of at least 2 per cent. by weight of a substantially neutral non-buffering ionizable salt, or salts, excluding alkaline earth chlorides. Specified added salts are the nitrate, sulphate, chloride, bromide or iodide of sodium or potassium, calcium nitrate and magnesium sulphate. A buffer solution is added to the mixture to maintain a constant pH value during refluxing. After refluxing, a stabilizing agent, such as sodium acetate, may be added, and the mixture evaporated until the desired viscosity is obtained. Starch may be added to the evaporated syrup.
Patent GB-715638-A (GB)
Title: Improvements in or relating to metal grids and screens and their manufacture
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: E04C2/42
Filed: 1952-02-04
Abstract: 715,638. Metallic fabrics. FISHER & LUDLOW, Ltd. Jan. 28, 1953 [Feb. 4, 1952], No. 2856/52. Class 45. [Also in Groups XXII and XXIV] In making a metal grid, e.g. for flooring, or a metal screen, e.g. for guarding machinery, a plurality of grid &c. assemblies are formed by disposing a number of flat section parallel strips side by side, placing a plurality of spaced apart wires or bars each in contact with an edge of each strip and welding each wire &c. to such edge to be flush therewith, arranging a plurality of subassemblies side by side and parallel and placing a number of connecting wires &c. in contact with the edges, to which the first wires are welded to two adjacent strips of adjacent sets and welding the connecting wires which are staggered relatively to the first wires to the edges to be flush therewith. In an embodiment five strips 10, Fig. 1, comprising a sub-assembly are held in a jig 11 and bars 13 are welded in turn transversely to the strips by electrodes 17, 18 of a resistance welding machine 16. Each bar is of square section twisted longitudinally to form a multi-start thread and during welding the bars sink into the strips so that two faces of each bar are paralleled with the upper edge 12, Fig. 3, of each strip and one is flush therewith The sub-assemblies are connected by transverse short bars 20 welded to the strips in a similar machine. The bars 13 are preferably in line and the bars 20 are spaced medially between them. The bars may be of square, polygonal or round section and may be at an angle other than right angle to the strip.