baber/WOPTO huggingface dataset:
Patent GB-823725-A (GB)
Title: Improvements in or relating to the manufacture of transformers
Inventor: BRYANT GERALD VICTOR
IPC: H01F19/00
Filed: 1956-10-08
Abstract: 823,725. Transformers. GENERAL ELEC. TRIC CO. Ltd. Jan. 8, 1958 [Oct. 8, 1956], No. 30646/56. Class 38 (2). A transformer having at least two windings and one electrostatic screen is made by laying these elements in turn on surfaces, the first of which is on a plastic or other bobbin and the others are on plastic material in which each of the elements are embedded in turn. A bobbin 7 having flanges 12, 13 is machined on a lathe from a cylinder of epoxy resin. Two start helical grooves are cut in the surface of the bobbin and wires 27, 28 are wound in them. The wire ends are soldered in hollow nickel terminal pins 22, 23, 24, 25 which pass through holes in the flanges, the wires subsequently being connected in series to form a single winding. Epoxy resin is then cast round the wound bobbin in a mould and the bobbin is again turned to form a bobbin 37 with a single flange 39, Fig. 8. On this is sprung a curved strip of beryllium copper forming a gapped electrostatic screen 41 with a projecting terminal 42. The application and machining of another layer of epoxy resin is followed by the superposition of a second screen, the casting of another resin layer and machining to a two flanged surface. A layer of enamelled wire is wound over the bobbin with cotton thread separating the turns, one end being secured to a further nickel pin held in the flange and the other being connected to the terminal of the second screen. Plastic material is then moulded over the coil and then over the terminals at 53. Finally, the coil structure is clamped between two ferrite pot-core parts 54, 55 from which segments have been removed to leave planar surfaces 57.
Patent GB-1501774-A (GB)
Title: Gripping tool for loosening screw caps of containers
IPC: B67B7/44
Filed: 1976-07-22
Abstract: 1501774 Cap removal tools LEIFHEIT INTERNATIONAL GUNTER LEIFHEIT GmbH 22 July 1976 30652/76 Heading B8T [Also in Divisions B3 and B4] A gripping tool for loosening screw caps of containers comprises a pair of arms 11, 12 pivoted at 16 and having arcuate portions 13, 14 providing two or more jaws 17, 18 of different radii of curvature. The arms are stamped out from sheet metal, jaws 17 being pressed out further than jaws 18, see Fig. 2. Jaws 18 may carry right-angled stops 19 for engaging the top surface of the screw cap. Serrated portions 22 and 23 may also be used for loosening screw caps and can be used as nut-crackers. Hookshaped portions 24 and 25 are used for removing crown corks. Arm 12 may be extended as shown to form a blade 21.
Patent GB-1281513-A (GB)
Title: Simulation of cybernetic learning
Inventor: YOUNG JOHN FREDERICK
IPC: G06N20/00
Filed: 1968-06-27
Abstract: 1281513 Learning systems NATIONAL RESEARCH DEVELOPMENT CORP 29 Sept 1969 [27 June 1968] 30657/68 Heading G4R A plurality of different electrical event signals are generated containing linking signals capable of establishing an association between associated events, the linking signals being recorded, reproduced and then compared with a reoccurring event signal to identify the linking signal or signals pertaining both to this reoccurring event and to a formerly associated event, an output signal pertaining to the associated event being generated. In Fig. 2, master (clock) pulses from a master track of a circulating magnetic tape loop (or drum) 110 drive a multi-decade counter 141, 142, 143, each decade having 10 outputs (not all shown). The units and tens outputs are combined in pairs with respective secondary event signals from switches at 144 to provide pulses at respective times from OR 145 for any of 100 possible secondary events. If one of 10 possible primary events occurs, a corresponding switch 146 passes a respective hundreds output from the counter via OR 147 to be ANDed 150 with the output of OR 145 to provide a selectively timed linking signal which is recorded on a memory track of tape 110. A reoccurring secondary event produces a pulse from OR 145 which is compared in AND 158 with the linking signals read from the memory track, to produce an output in an output channel 153 selected by the currently-active hundreds output of the counter at ANDs 155. Such an output is also produced by a primary event via the direct connection shown from OR 147 to OR 157. Randomly varying time delays may be inserted preceding or following OR 145. Forgetting can be simulated by randomly positioned erasing pulses applied to the memory track. The primary and secondary events may be operations of a machine tool and recognition of particular spoken words respectively. An integrating or staircase circuit may be used in each output channel to require a predetermined number of activations before an output is produced. In another embodiment, the master pulses are frequency-divided by different prime numbers by respective counters, the counter outputs (one per counter) going via respective event switches to a two-or-more detector which provides the linking signals which are recorded on the memory track. The detector inputs are also ORed and applied to an AND which compares them with the linking signals read from the memory track, an output from the AND pulsing an output channel selected by the currently-active counter output. Some event switches may be closed (to pass the respective counter outputs) in response to recognition of respective spoken words, and some in response to push-buttons. Further memory tracks, used similarly, can be provided.
Patent GB-306842-A (GB)
Abstract: 306,842. I. G. Farbenindustrie Akt.- Ges. Feb. 24, 1928, [Convention date]. 2-mercaptoarylenethiazoles of the general formulawhere R is an arylene residue, substituted or not, are prepared by acting on an o-aminoaryl sulphocyanogen compound with an alkali and a thiocarbonate of the general formula- S - Alkali metal S=C \ x where X indicates 0-alkali metal, S-alkali metal, i, or O-alkyl. Mixtures of substances which would i produce thiocarbonates may be used in place of I the salts themselves such as carbon disulphide and alkali sulphide, carbon disulphide and alkali, or carbon disulphide, alkali and alcohol. The addition of a reducing agent such as hydrosulphite is an advantage, but when alkali sulphide is present the further addition of a reducing agent or alkali is unnecessary. Thus 2-mercapto derivatives of 4-methyl-6-chlorobenzothiazole, a(S)-naphthothiazole, 4: 6-dimethylbenzothiazole and 6-methylbenzothiazole, are prepared from corresponding o-aminoaryl sulphocyanogen compounds which may be prepared by the process of Specification 303,813. When disulphocyanogen derivatives of amino compounds which contain one sulphocyanogen group in the o-position to the amino group are treated by this process the other sulphocyanogen group is replaced by a mercaptan or disulphide residue. Thus the 2 : 4- disulphocyanogen derivatives of aniline and anaphthylamine (Specification 257,619) are converted to the corresponding dimercapto derivatives of benzothiazole and a(N)-naphthothiazole. Specification 306,558 also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the preparation of 2-mercapto derivatives of 6-methoxybenzothiazole, 4: 6-dimethvl-7-chlorobenzothiazole and 4: 6-dimethyl-5 : 7-diohlorobenzothiazole from the corresponding o-amino sulphocyano derivatives, but this subject-matter does not appear in the Specification as accepted.
Patent GB-823173-A (GB)
Title: Improvements in gas pressure control valves
IPC: G05D16/10
Filed: 1957-10-01
Abstract: 823,173. Valves. ENFO ENTWICKLUNGSUND FORSCHUNGS A.G. Oct. 1, 1957 [Oct. 2, 1956], No. 30687/57. Class 135. In a casing 1 are disposed adjustable main and return springs 2, 3, respectively, that act upon a valve closure 8 via a spingle 5b; the closure co-operates with upper and lower valve seats 6, 7 separated by a sleeve 7a. The seat 6, which may be provided with a gasket 9, is removable and may be ground to compensate for wear; shims 7b are positioned beneath the lower seat to adjust the lift of the closure 8. Sealing rings may be associated with one or both of the seats arid associated closure surfaces, which latter may be flat or conical. The seat 7, bolted to the casing 1, incorporates an axial or as shown a radial inlet I, which may be located in any one of four positions at 90-degree intervals. Sleeve 7a embodies diametrical holes 13a, 13b of different sizes, the smaller of which 13b leads to an outlet II whilst the other opens via a throttling nozzle 14 into a passage 15; the sleeve 7a may be rotated to reduce the effective size of the hole 13b. Passage 15 discharges fluid at the rear of a return piston 18 that acts on spring 3; in the position shown a washer 22 serves as a valve closure and prevents leakage losses between the piston 18 and its cylinder 19. The return piston 18 only exerts its full effect when the closure 8 contacts the seat 6, which latter with the closure 8 in the position shown, connects the outlet II and piston 18 to atmosphere through an outlet III. When the inlet pressure lifts the closure 8 from seat 7 the spacing of the closure 8 from the seat 6, is determined by the balance between the inlet pressure and the force exerted by the piston 18 through the spring 3, such spacing controlling the effective opening between outlets II and III and hence the pressure at outlet II. The outlet III also serves as an exhaust for the fluid from piston 18 when the closure 8 moves to the position shown.
Patent GB-1009148-A (GB)
Title: Method of treating oil before release into the sea
Inventor: AURELL THORE
IPC: C02F1/68
Filed: 1963-08-02
Abstract: Oil, which is to be released into the sea, is treated with a substance in such an amount as to form a single homogeneous phase with the sea water that it will sink.  Examples are ethylenedichloride, benzene sulphonic acid, benzene trichloride, methylene chloride, tetraetrichloroethylene ethyl carbamide.
Patent GB-819144-A (GB)
Title: Piston cushioning device
IPC: F16F9/49
Filed: 1956-10-09
Abstract: 819,144. Pistons; cylinders; steam engines, regulating &c. WESTINGHOUSE AIR BRAKE CO. Oct. 9, 1956 [Oct. 31, 1955], No. 30734/56. Classes 122 (1), 122 (3) and 122 (4). A piston cushioning device comprises a cylindrical plug 29, Fig. 1, on the piston 3 capable of entering and sliding with axial and radial clearance 30 into a cylindrical cavity 18 in the cylinder head 2, a restricted passage 26 between the cavity 18 and cylinder space 22, and a sealing element 33 which is axially movable in an annular recess 34 at the mouth of the cavity and constitutes a non-return valve permitting the passage of fluid only on the pressure stroke when fluid is admitted to the cavity 18 through an inlet 23. The sealing element 33 is a resilient 0-ring of smaller outside diameter than the recess 34 and of smaller inside diameter than the cylindrical surface 42 of the plug 29 so that with pressure fluid admitted to the cylinder space 5, the tapered end 41 of the plug enters the ring 33 which becomes stretched over the plug and is moved into sealing engagement with a seating 35 in the recess 34 during further movement of the piston, thereby cutting off communication between the cylinder space 22 and entrapping cushioning fluid in the latter space 22. The restricted passage 26 is a permanentlyopen by-pass having an adjustable needle valve 28 for regulating the flow of cushioning fluid from the space 22. When pressure fluid is admitted to the cavity 18 and the cylinder space 5 is opened to exhaust, the ring 33 is forced off its seat and allows the pressure fluid to flow to the cylinder through the clearance 30 between the ring and the annular recess 34 and through ports 38 in an integral or detachable retaining element 39 which secures the ring 33 within the recess 34; the ring 33 is then withdrawn from the seating 35 and the piston is moved away from the cylinder head 2. The cylinder head 2 is secured to the cylinder 1 by a clamping ring 15 which engages in grooves on each, the head being sealed by an 0-ring 16 located within a groove on the outer periphery of the cylinder head 2. The piston assembly 3 comprises a pair of spaced-apart annular elements 6 of smaller diameter than the cylinder 1, the annular clearance accommodating skirt portions 9 in the form of oppositely-facing cups 10 each having a radial flange 11 clamped between the elements 6 and a separating element 13, all carried on a reduced portion 8 of the piston rod 4 and secured by a nut 31 against a shoulder 32 formed on the rod.
Patent GB-809254-A (GB)
Title: An improved fastener, for example, for beadings
Inventor: FERNBERG ERIC BIRGER
IPC: B60J10/02
Filed: 1957-10-27
Abstract: 809,254. Mouldings; glazing. F. T. PRODUCTS Ltd. Oct. 22, 1956 [Oct. 27, 1955], No. 30800/55. Classes 20(3) and 20(4) A fastener 10, e.g. for securing a metal beading 28 to a strip of rubber 29, comprises a piece of sheet-metal bent about two parallel fold lines 16, 17 so as to form a web 11 and two limbs 12, 13, each limb being formed with an outwardly-directed foot 20 and an inwardly-directed prong 25, and an open-ended skirt 18 directed outwardly and away from the web. As shown, the skirts 18, 19 are part-conical in form, the apices thereof being directed towards the web 11, and the latter has cutaway areas 14, 15 of semi-circular shape, the bases of which lie on the line 16 so that the web is weaker along that line than along the line 17. In use a number of fasteners 10 are clenched on the parallelsided rib 32 of a rubber strip 31 pulled longitudinally or pushed transversely into a groove 30 formed in the strip 29 which is provided with slots 34, 35 for engagement therein of a glass window 33 and a metal panel 36. The prongs 25 of the fastener bite into the rib 32, and the flanges 37, 38 of the beading 28 are snapped over the skirts 18, 19 to seat between the latter and the feet 20. Specification 696,800 [Group XXV] is referred to
Patent GB-187863-A (GB)
Title: Improvements in combination nose and mouth inhalers
IPC: A61M16/06
Filed: 1921-11-18
Abstract: 187,863. Jack, E. E. Brydone-. Nov. 18,1921. Respiratory appliances.-A combined nose and mouth inhaler for use in administering anµsthetics in constructed of two parts 1, 9, detachably connected, the mouth-portion 9 being removable without interference with the supply of anµsthetic to the nose portion 1. The anµsthetic is supplied through a connection in the upper part of the nose-portion and passes through an opening 12 into the mouth-portion; an adjustable air valve 4 is fitted to the nose-portion, and exhaling valves 5, 11 are fitted to each portion of the inhaler. The opening 12 is covered by a sliding- shutter 13, running in grooves 14 and normally held closed by a pair of springs 16, 17, connected to the shutter by flexible wires 15. The mouthportion slides in grooves 19<1> cut in the nose-portion in the same direction as the shutter grooves, and a bar 20 on the mouth-portion engages the downturned end 21 of the shutter and forces it open against the tension of the springs. On removing the mouth-portion, for purposes of dental operation, the shutter automatically closes. A spring catch 22 prevents the mouth-portion shifting forward under the influence of the shutter springs.
Patent GB-655566-A (GB)
Title: Improvements in or relating to the manufacture of thermionic valves
Inventor: PEARSON NORMAN EDWARD HUGO
IPC: H01J1/18
Filed: 1947-11-20
Abstract: 655,566. Thermionic valves. HIVAC, Ltd. Nov. 20, 1947, No. 30854. [Class 39 (i)] In a filament mounting arrangement for a thermionic valve, of the type in which the anode comprises opposed parallel planar surfaces on either side of the filament whereby the principal direction of electron travel when the valve is in operation is substantially normal to said planar anode surfaces, a single limb filament wire is held under tension by its attachment at one end to a spring which is formed as a strip of metal whose cross-section has a width dimension several times greater than its thickness, said spring being of generally flat or only slightly bowed form and being disposed so as to lie with its length dimension substantially at right angles to the filament wire, and its width dimension substantially at right angles to the filament wire and parallel to said principal direction of electron travel. The filament wire 10 is held between a fixed support lug 11 and a cantilever spring 12 and passes through triangular holes in mica spacing plates 13 and 14, provided with projections 27 to locate the electrode assembly in the surrounding envelope. Support-lug 11 is a substantially L-shaped metal stamping, rigidly secured by means of bent-over tongues 18 to the lowermost of two superposed mica layers forming the lower spacing plate 14. Two layers of mica are used so that the lower edge of the anode (not shown) will be insulated from the tongues 18. The filament is connected, for example by welding, to the lug 11 through the intermediary of a metal tag 19, to which is also welded the end of a connecting-wire 20. The spring 12 has a downturned portion 21 to which is welded a metal tag 22 connected, as by welding, to the filament wire, and is welded at its opposite end to one limb of a U-shaped metal plate 23, the other limb of which is welded to one of the support rods 24 of the suppressor grid structure. The position and tension of the spring 12 may be adjusted by bending the plate 23. In a possible modification, the tensioning spring is connected at each end to fixed members and the filament wire is attached to its centre.
Patent GB-206020-A (GB)
Title: Improvements in sleeves for the bobbins of cloth expanding machines
IPC: D06C3/06
Filed: 1922-11-11
Abstract: 206,020. Mycock, W. Nov. 11, 1922. Feeding webs.-The rubber sleeve covering the bobbins of curvedbar cloth-expanders is provided with a ribbed studded, fluted, ind e n t e d, or other roughened inner surface to permit the air to pass freely between the sleeve and the bobbins to prevent, suction adhesion of the sleeves to the bobbins, and consequent uneven tension of the rubber. In one form of sleeve, its inner surface is formed with projecting studs a, Fig. 1, forming air passages a<1>, and in another form, diagonal ribs a<2> a<3>, Fig. 3, are provided forming air pockets a<4>. Specification 16446/98, [Class 42, Fabrics, Dressing &c.], is referred to.
Patent GB-411466-A (GB)
Title: Means for determining insulation resistances
IPC: H01B7/32
Filed: 1932-11-02
Abstract: 411,466. Resistance measurements; cables. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and POLGREEN, G. R., c/o Salford Electrical Instruments, Ltd., Silk Street, Salford. Nov. 2, 1932, No. 30883. [Classes 36 and 37.] The insulation resistance between groups of wires in a cable, such as a loaded telephone cable, is determined by providing insulated wires connected individually to the groups so that they are normally enclosed in the main sheath or container, but are led out therefrom when making the test. The insulated wire connections are attached to a metal disc which is employed to seal the aperture through which the test wires are led.
Patent GB-610065-A (GB)
Title: Improvements in switch-stopping devices
IPC: H01H67/06
Filed: 1945-11-19
Abstract: 610,065. Automatic exchange systems. COMPAGNIE GENERALE D'ELECTRICITE. Nov. 19, 1945, No. 30981. Convention date, Oct. 12, 1943. Drawings to Specification. [Class 40 (iv)] In an arrangement in which a hunting switch is controlled by a differential test relay which is initially operated over one coil to close the magnet circuit, and is released by the energization of the other coil over the test wiper, the resistance of the second coil is substantially equal to the resistance encountered over the test terminal. The current in the second coil is insufficient to release the relay if the outlet is tested simultaneously by another switch.
Patent GB-1157940-A (GB)
Title: Improvements in or relating to Colour Television
IPC: G11B27/024
Filed: 1967-07-05
Abstract: 1,157,940. Automatic speed control. FERNSEH G. m. b. H. July 5, 1967 [July 14, 1966], No. 31016/67. Heading G3R. [Also in Division H4] Colour television signals played back from a magnetic tape T are brought into time coincidence with signals from a separate source by control of the speed of motor 35 which advances the tape so as to facilitate the switch-over from one signal to the other. The signals are recorded on transverse tracks on the tape which also carries a longitudinal track L bearing a 250 c/s control signal for correlating the tape advance with the rotation of the recording head wheel. In carrying out the invention (from one aspect) a 12À5 c/s signal M identifying every fourth television frame is also recorded on track L. During playback this signal, which is derived from a head 31, is compared in phase comparator 33 with a signal of the same frequency obtained over lead 32 from the separate source of television signals. The output of the comparator controls motor 35 via amplifier 34. When approximate time coincidence is achieved this is detected by a gate 36 which operates a switch 37. A second phase comparator 38 is then brought into use to provide a more rapidly acting speed control system using the 250 c/s control signal from track L and a reference signal obtained over lead 39. From another aspect the 12À5 c/s identification signal is not recorded on the tape, but is derived from the played back signal. The particular television signal with which the invention is concerned is the PAL colour signal in which the complete line and frame scanning and colour synchronizing signal sequence repeats in a four-frame cycle. Arrangements for identifying one particular frame and producing a signal in response thereto are described with references to Figs. 1-4 and 7 (not shown).
Patent GB-741706-A (GB)
Title: Improvements in gas discharge devices
IPC: H01J3/02
Filed: 1953-11-10
Abstract: 741,706. Thermionic valves. RADIO CORPORATION OF AMERICA. Nov. 10, 1953 [Nov. 21, 1952], No. 31134/53. Class 39 (1). A continuously-controllable gas discharge tube has a single thermionic cathode and two dissimilar anodes, the discharge path between the cathode and the first anode being constricted at one point, and the second substantially surrounding the cathode and closer to it than the first anode, so that when an ionizing discharge is maintained between the cathode and the first anode it creates an intense plasma between the cathode and the second anode from which a large working current can be drawn at a voltage less than the ionization potential. In one embodiment the tubular cathode 15, Fig. 2, is surrounded by the second anode 16 in the form of a cylinder with a narrow slot 17 opposite which is placed the first anode 18, the electrodes being mounted between insulating spacers 13, 14. Modulation of the small current taken by the first anode controls a larger current in the circuit of the second anode which may be less than 2 volts positive to the cathode, and is thus suitable for amplification. For rectification a fixed bias is maintained between the cathode and first anode and the alternating voltage to be rectified is connected between the cathode and the first anode. In a modification the cathode 40, Fig. 5, is surrounded by U-shaped control grid 41 and second anode 42. Constricting electrode 43 with slot 44 may be unconnected or connected to. the cathode 40 or to control grid 41, and first anode 45 lies opposite slot 44. The current to the second anode produced as before is in this form controllable by grid 41. The aperture 44 may be covered by an elongated channel-shaped grid member extending towards the cathode to increase the efficiency of plasma generation, Fig. 6 (not shown). The filling may be argon helium or other rare gas at 100 microns to several millimetres, for example helium at 750 microns.