baber/WOPTO huggingface dataset:
Patent GB-1241060-A (GB)
Title: Ignition of a gas discharge lamp
Inventor: STURM WALTER
IPC: H05B41/04
Filed: 1968-10-21
Abstract: 1,241,060. Control systems for discharge lamps. ORIGINAL HANAU QUARZLAMPEN G.m.b.H. 21 Oct., 1968 [21 Oct., 1967], No. 49933/68. Heading H2H. A discharge lamp of the kind used in the production of infra-red radiation is provided with means for starting the lamp which comprises the superimposition on the lamp operating voltage of a voltage having a number of low-frequency harmonics. A discharge lamp L is immersed in a medium F having a high dielectric constant-such as water-in order to produce infra-red radiation. The normal operating voltage for the lamp is provided by an A.C. supply connected to the primary winding of a transformer Trl, the lamp L being connected to the secondary winding. A further winding W1 is magnetically coupled to the secondary winding, the lamp being started by pulses which are produced in the winding W1 when a voltage breakdown device, such as a spark-gap FS, conducts. A capacitor C1 is charged from an A.C. supply by way of a transformer Tr2, voltage doubler SpVd and a resistor R1. When the capacitor voltage reaches a desired value the spark-gap FS breaks down and the capacitor C1 discharges through the winding W1 causing ignition of the lamp L. The high-frequency harmonics in the pulse may be filtered out by designing the inductance and the self capacity of the windings of the transformer Tr1 so that the transformer forms the necessary filter. In a further embodiment the transformer Tr1 may be replaced by a choke to which the winding W1 is inductively coupled.
Patent GB-1131491-A (GB)
Title: Improvements in or relating to superconducting coils
Inventor: CORNISH DONALD NELSON
IPC: H01F6/02
Filed: 1964-12-09
Abstract: 1,131,491. Superconducting coil. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 23 Nov., 1965 [9 Dec., 1964], No. 50128/64. Heading H1K. In a superconducting coil, the region where initiation of the degrading effects of magnetic field disturbance occurs, is provided with means to reduce the effects. The means comprise (a) embedding the superconductor wire in copper or indium in the initiating region; (b) in a coil of Nb-Zr alloy, providing a length of Nb wire in the region of zero field, Nb not being effected by magnetic field disturbances; or (c) connecting an auxiliary current source across the initiating region thereby reducing magnetism in that region.
Patent GB-1497896-A (GB)
Title: Riser sleeve composition and article for use in cutting ferrous metals
IPC: C04B28/00
Filed: 1975-12-06
Abstract: 1497896 Insulating composition JOHNS-MANVILLE CORP 6 Dec 1975 50136/75 Heading C1J A refractory fibre insulating composition comprises in per cent by weight, 30-50% refractory fibre wherein more than half is alumino-silicate fibre, 5-45% inorganic binder, 2-10% organic binder, 5-35% refractory filler (e.g. aluminosilicates such as ground bauxite, mullite and kyanite) and, in addition to any granular silicon carbide constituting said refractory filler, 1-35% granular silicon carbide. The inorganic binder may be a mixture of colloidal silica and clay and the organic binder may be starch. The composition may be used in the form of a hollow cylinder suitable for use as a riser sleeve, or otherwise in the form of an insulating board.
Patent GB-1192509-A (GB)
Title: Improvement relating to Articles of Wearing Apparel
Inventor: MUI LEUNG
IPC: A41D1/00
Filed: 1968-10-23
Abstract: 1,192,509. Wearing apparel. LEUNG MUI. 23 Oct., 1968, No. 50228/68. Heading A3V. An article of wearing apparel, such as a ladies dress, blouse or skirt or a man's tee-shirt, is made from a plurality of interconnected flexible plastics links 10, Fig. 1. The article comprises a plurality of the links 10 doubled over and interconnected to form spaced, generally parallel linkages 13, Figs. 4 and 5, which are themselves interconnected transversely by a number of the said links 10c in a flat configuration and themselves disposed in substantially parallel bands. A preferred embodiment is that of a ladies dress of cylindrical form, the front being shown in Fig. 4 and the back in Fig. 5. A metal ring 22 serves as an anchoring point for the rear terminals of shoulder straps 18 also formed as shown of linkages and flat links. There is an additional linkage 13a which is continuous around the neckline, passing around the lower side of the metal ring 22.
Patent GB-1522720-A (GB)
Title: Method and device for detection of fluctuation in air/fuel ratio of air-fuel mixture fed to internal combustion engine
IPC: G01N27/407
Filed: 1976-12-02
Abstract: 1522720 Exhaust gas oxygen fluctuation sensor NISSAN MOTOR CO Ltd 2 Dec 1976 [3 Dec 1975] 50263/76 Heading G1N Changes across stoichiometric, of the air/fuel ratio fed to an internal combustion engine are determined by contacting the exhaust gas with first one and then, after a delay, the other electrode of a solid electrolyte sensor having electrodes which catalyze carbon monoxide and hydrogen oxidation. An output, of polarity indicating the direction of charge, is produced when the charges occur. The sensor is constructed with holes 36 or 46 linking the inside and outside of a closed end tube, the holes being sized to create the necessary delay. A passage from the tube interior to ambient atmosphere in the neighbourhood of inner electrode connections 30 or 42 may also be provided.
Patent GB-1104579-A (GB)
Title: Apparatus for treating flowable materials
IPC: F28F5/02
Filed: 1966-11-11
Abstract: 1,104,579. Mixing apparatus. PACKAGED POWER TERMINALS Inc. 11 Nov., 1966 [24 Nov., 1965], No. 50677/66. Heading B1C. Mixing apparatus comprises a cylinder 11 rotatably mounted within a housing 12 and a helical device carried by the cylinder in the space 17 between the cylinder and the housing. The helical device comprises two helical tubes 54, 55 connected by lifting bars 56. Further helical tubes 30, 31 may be mounted within the cylinder 11 on another cylinder 10, so that the material to be mixed enters the cylinder 11 through the inlet 20, is moved axially in one direction by the helical tubes 30, 31 and then in the other direction by the helical tubes 54, 55 to the outlet 21. The lifting bars are hollow and may be straight or form long pitch helices. The cylinders 10, 11 and the housing 12 are jacketed and cooling or heating fluid passes through them and the helical tubes and lifting bars. Liquid or gas may be introduced into or withdrawn from the material through openings in the hollow parts, for example in the helical tube 30, which is fitted with a porous plates (73, 74, Fig. 3, not shown) to prevent material entering the tube.
Patent GB-507199-A (GB)
Abstract: 507,199. Stroboscopes. SCOPHONY, Ltd., and OKOLICSANYI, F. Dec. 7, 1937, No. 15139/39. Divided out of 507,146. [Class 97 (i)] Apparatus for providing a source of intermittent illumination (Fig. 1) comprises a mirror oscilloscope 5, a generator of electrical oscillations 10 for driving said oscilloscope, a light source 1, a screen with an aperture 7 and an optical system 2, 3 for projecting a beam of light on to the oscilloscope mirror, which, in operation sweeps the beam across the aperture 7. The aperture 7 may be adjustable in width and varied simultaneously with the frequency of the oscillator to maintain the duration of the flashes constant, or the frequency and amplitude of the oscillator may be simultaneously varied for the same purpose. The oscilloscope shown in Fig. 1 is piezo-electric, with electrodes 8, 9 carrying a mirror surface 4. For larger amplitudes an electromagnetic oscilloscope, Figs. 2 and 3, may be used. A shank portion 50 carries a mirror 51 which is vibrated by the alternating flux in a pole-piece 53. The amplitude is controlled by the steady flux from the pole-pieces 52 provided by the anode current of the valve 55, adjustable by means of the cathode resistance 56. The frequency may be adjusted by altering the length of the shank 50 between the clamps 58, the shanks 59 of which are adjustable longitudinally in the blocks 60. The driving circuit comprises an oscillator valve 61 synchronized by pulses applied to its grid. This is followed by amplifier valves 64, 66. A series resonance circuit 68 is provided in parallel with the coupling resistance 65 of the valve 64 to ensure that the voltages supplied to the oscilloscope remain substantially constant even if the frequency of the synchronizing pulses varies slightly. In an alternative arrangement to achieve this result, the oscilloscope is tunedto a frequency slightly to one side of the oscillator frequency, and the grid circuit of the output valve contains a parallel resonance circuit tuned to a frequency lying slightly to the other side of the oscillator frequency. In order to increase the light efficiency of the device, the lamp may be arranged to flash in synchronism with the vibrations of the mirror. It may be fed by the anode current of a number of paralleled valves the grids of which are supplied with synchronizing pulses. The valves may be replaced by gas-filled relays. Specifications 474,970 and 507,146, [both in Group XL], are referred to.
Patent GB-1316613-A (GB)
Title: Device for washing and drying linen and articles of wearing apparel
IPC: D06F17/04
Filed: 1970-10-26
Abstract: 1316613 Washing machines INDUSTRIE A ZANUSSI SpA 26 Oct 1970 [31 Oct 1969] 50820/70 Heading D1A In a cabinet type laundry washing and drying machine with sprinklers 16 for spraying washing and rinsing liquors the laundry 12 is hung on carriers 13 which are oscilatable, horizontally perpendicular to the surface of the hanging laundry. In Fig. 2 the carriers 13 are mounted on a frame 14 which is suspended by links 15 and 30, the latter being oscillated by a crank 28. The link 30 passes through a rubber member 31 which is said to act as a damper. The liquors are circulated by a pump 18 having an intake grid 191 and a filter screen 19 and the laundry is dried by air circulated by a fan 25 past a heater 24 the laundry and through a passage 23 with a cold water spray for condensing moisture. In a modification (Fig. 6, not shown) the carriers 13 are provided on two frames which are oscillated in opposite senses to one another by a crank mechanism. In a further modification, Fig. 10, the frame 14 is oscillated by two opposed jets 100 which operate alternately, or the frame may be oscillated by rotation of an eccentrically mounted rotor or other mass. Preferably the laundry is alternately sprinkled and oscillated.
Patent GB-1209643-A (GB)
Title: Solution mining
Inventor: DAHMS JAMES BOWEN
IPC: E21B43/28
Filed: 1967-11-10
Abstract: 1,209,643. Solution mining. KALIUM CHEMICALS Ltd. 10 Nov., 1967, No. 51165/67. Addition to 1,117,995. Heading E1F. A modification of the method, as described in parent Specification for providing an extraction surface to allow of solution mining of a stratum of product material located above an existing cavity by forming a fracture between two boreholes at an interface between the product stratum and an adjacent stratum of dissimilar material by introducing to said interface fluid at a pressure in excess of the normal hydrostatic pressure at the interface but considerably below the pressure normally required to fracture a similar product stratum at the depth of the interface to induce a fissure along the interface when no cavity exists beneath the product stratum. The modification is that now the fracturing fluid is supplied through one of a number of conduits located in a borehole to fracture the interface around the borehole to allow of solvent to be subsequently passed through the fluid-supplying pipe to the interface and then to be withdrawn after dissolving soluble material from the product stratum up another pipe in the borehole. Preferably this method involves the use of a tubular conduit 22 disposed concentrically within a casing 21 for the borehole, said casing being apertured at 24 in the vicinity of the interface above and below a plug 26 sealing off the space between the conduit and the casing.
Patent GB-1536563-A (GB)
Title: Multi station telephone switching systems
IPC: H04Q3/58
Filed: 1975-12-15
Abstract: 1536563 Key telephone systems INTERCONNECT PLANNING CORP 15 Dec 1975 [27 Dec 1974] 51287/75 Heading H4K In a key telephone system wherein each station has a non-locking push-button for each exchange line of the system, first display means are provided in each station for indicating which lines are in use and second display means are provided for indicating to which line the particular station is connected. Preferably the second display means at each station indicates the line to which each of the stations of the system is presently connected. The description is identical to that of Specification 1,536,564.
Patent GB-1115739-A (GB)
Title: Improvements in or relating to coal cutter picks for use in a coal cutter box
Inventor: LINDLEY ERIC
IPC: E21C35/19
Filed: 1965-12-03
Abstract: 1,115,739. Mineral-mining picks. HALL & PICKLES Ltd. 1 Dec., 1966 [3 Dec., 1965], No. 51336/65. Heading E1F. Positioned in a recess in the shank of a mineral-mining pick is a plug of resilient material, the plug having a tip which stands proud of the shank to engage, after being initially compressed back into the recess when the shank is first entered into a holder, a detent in a holder to lock the pick therein.
Patent GB-1280545-A (GB)
Title: A solid state scanning system
Inventor: SANDBANK CARL PETER
IPC: G02F1/11
Filed: 1969-10-21
Abstract: 1280545 Modulating light STANDARD TELEPHONES & CABLES Ltd 10 Sept 1970 [21 Oct 1969] 51474/69 Heading H4F A scanning system comprises a semi-conductor body in which high field domains may be caused to propagate and a Schlieren optical system for detecting surface deformations of the body caused by the domains (by reflection of light from the surface). As described, the body is of CdS and moving acoustic domains are produced therein when a continuous or pulsed potential above a threshold value is applied across the body, but other materials exhibiting the above or similar domain transit phenomena such as the Gunn effect and an effect involving electron traps in high resistance materials may be used. Most of the excess applied potential appears across the moving domain, so that modulation of the applied potential results in modulation of the potential across the domain and of the deformation of the piezo-electric body caused by the domain and gives intensity modulation of the scanned line.
Patent GB-1241362-A (GB)
Title: Automatically engaging and disengaging dog cluth
IPC: F16D23/02
Filed: 1969-10-21
Abstract: 1,241,362. Ratchet clutches. MAAG GEAR WHEEL & MACHINE CO. Ltd. 21 Oct., 1969 [25 Nov., 1968], No. 51485/69. Heading F2C. In a synchro-self shifting clutch wherein a pawl-and-ratchet mechanism 5, 9 initiates helical movement of intermediate members 3, 4 along a screw-thread 7 to initiate precise interengagement between helical clutch teeth 11, 12 on the intermediate member 3 and clutch hub 2, the pitch of the helical clutch teeth and the screw-thread are such that during final clutch engagement the intermediate members 3, 4 rotate relative to one another to relieve the pawls of load. The pawl-and-ratchet mechanism 5, 9 is provided between the intermediate members 3, 4 which are freely rotatable relative to one another whilst being constrained for conjoint at axial movement. The intermediate member 3 is splined to a driving drum 1. On synchronism the pawl-and-ratchet mechanism 5, 9 rotates the intermediate member 4 relative to the clutch driven hub 2, whereupon the screwthread connection 7 move the intermediate members 3, 4 helically along a driven clutch sleeve 13 to bring the clutch teeth 11, 12 into initial engagement. Thereafter interaction between the teeth 11, 12 moves the intermediate members helically to fully engage the clutch. During the final engagement the intermediate members 3, 4 are rotated by the helical teeth 11, 12 and screw-thread 7 relative to one another to relieve the pawls 5 of load. Oil supplied continuously to a chamber 14 aids disengagement.
Patent GB-1095737-A (GB)
Title: Polyether detergents
IPC: C08G65/28
Filed: 1964-12-18
Abstract: A detergent composition comprises the reaction product of a 1,2 or 1,3 or 1,4 or 1,5 C8- 22 saturated straight chain aliphatic diol or a mixture of two or more such compounds with at least 3 mols. ethylene oxide.  The term diol includes compounds having an ether linkage, e.g. dodecyl glyceryl ether. The compounds are used in aqueous solution either alone or in the presence of detergent builder salts such as alkali-metal sulphates, carbonates, silicates, phosphates or borates.  The composition may also include carboxymethylcellulose, synthetic detergents, soaps, perfumes, abrasives, foam stabilizers, germicidal agents and colouring agents.  The diol may be obtained by the oxidation of olefines, the hydrolysis of chlorohydrins, the pinacol reduction of ketones or the hydrolysis of 1,2 epoxides. Examples use tetradecane -1,2-diol, and a C10- 20 1,2 diol mixture. Reference has been directed by the Comptroller to Specification 1,041,036.ALSO:An ether is prepared by reacting a 1,2-, 1,3-, 1,4-, or 1,5-C8- 22 saturated straight chain aliphatic diol or a mixture of two or more such diols with at least 3 mols. ethylene oxide.  The term diol includes compounds having an ether linkage, e.g. dodecyl glyceryl ether.  Preferably, 7-23 mols. ethylene oxide are used.  The ethylene oxide is bubbled into the diol, preferably in the presence of a catalyst, e.g. NaOH, Na, NaOMe, NaOGt, KOH, BF3, SnCl4 and SbF5 at elevated temperatures.  The reaction may be carried out under nitrogen. The diol may be obtained by the oxidation of olefins, the hydrolysis of chlorohydrins or 1,2-epoxides, or the pinacol reduction of ketones.  Examples describe the use of a C10- 20 1,2-diol mixture and tetradecane-1,2-diol.  Reference has been directed by the Comptroller to Specification 1,041,036.ALSO:An ether is prepared by reacting a 1, 2 or 1, 3 or 1,4 or 1,5 C8- 22 saturated straight chain aliphatic diol or a mixture of two or more such diols with at least 3 mols. ethylene oxide. The term diol includes compounds having an ether linkage, e.g. dodecyl glyceryl ether. Preferably 7-23 mols. ethylene oxide are used. The ethylene oxide is bubbled into the diol, preferably in the presence of a catalyst, e.g. NaOH, Na, NaOMe, NaOEt, KOH, BF3, SnCl4 and SbF5 at elevated temperatures. The reaction may be carried out under nitrogen. The diol may be obtained by the oxidation of olefins, the hydrolysis of chlorohydrins or 1, 2-epoxides, or the pinacol reduction of ketones. Examples describe the use of a C10- 20 1,2-diol mixture, and tetradecane-1,2-diol. Reference has been directed by the Comptroller to Specification 1,041,036.
Patent GB-1109404-A (GB)
Title: Improvements in or relating to filters
IPC: B01D46/10
Filed: 1965-12-06
Abstract: 1,109,404. Air filter. D. A. G. MARSHALL. 3 March, 1967 [6 Dec., 1965], No. 51638/65. Heading BIT. A filter comprises a pair of filter pads or elements which are adapted to be joined edge to edge in a removable manner, at least one of the co-operating edges 14 being provided with a surface comprising a multiplicity of hooks 22 which fasten on to the opposed surface 16 of the other co-operating edge when the edges are brought into contact with each other but which can be separated from that opposed' surface substantially without damage to the elements and without the use of an excessive pulling force on the two elements. The opposing surfaces may comprise strips of "Velcro" (Trade Mark). The hooks 22 may be regularly spaced and made of filaments of nylon, and the co-operating edge may have highly curled nylon. fibres 24 resembling the fibres of fuzzy wool. The pads may comprise one or more thicknesses of open-pore polyurethane foam, with a metal reinforcing frame. The pads may be held in channel members (30, 32) extending along the inside surfaces of a duct (26) (Fig. 6 not shown).
Patent GB-1285378-A (GB)
Title: Improvements in clutches
Inventor: WEBB OSWALD
IPC: F16D41/22
Filed: 1969-10-22
Abstract: 1285378 Ratchet clutches HARRY FERGUSON RESEARCH Ltd 22 Oct 1969 51666/69 Heading F2C In an overrunning friction clutch 9, the clutch is engaged on relative rotation in one direction between pressure plates 4 and 5 having cam grooves 7 and balls 6 therein to force the plates apart, and a spring 10 between the two plates tends to rotate them in the one relative direction. The pressure plate 4 may be connected to the driving shaft 2 directly, Fig. 6 (not shown), or as shown by a second friction clutch 8 also engaged on relative rotation of the plates 4 and 5 in the one direction. The clutches 8 and 9 are multiplate friction clutches, and the pressure plate 5 is connected to a surrounding sleeve 11 by a ring 18 engaging end slots in the plate and sleeve. The spring 10 is a long tension spring attached at one end to the sleeve 11 and at the other to an extension 4A of the plate 4, the spring also compensating automatically for wear of the friction clutch plates. Counter clockwise rotation of shaft 2 drives shaft 3 in that direction through the two clutches 8 and 9 engaged by axial separation of plates 4 and 5, and allows overrunning of shaft 3 in that direction, such overrunning rotating plate 5 relative to plate 4 in the other direction to allow plates 4 and 5 to move together and clutches 8 and 9 to slip. Clockwise rotation of shaft 2 moves plates 4 and 5 together so that clutches 8 and 9 are not engaged and drive is not transmitted, a one-way brake 27, 28 acting on an extension 11A of sleeve 11 preventing reverse clockwise rotation of plate 5 to allow reverse clockwise overrun of shaft 3. Again, Fig. 4 (not shown), ramp faces (5B), (18B) are provided on the plate 5 and ring 18 to urge the plate 5 to the left to allow shaft 3 to be rotated in a clockwise direction with minimum effort when a counter clockwise torque is applied to shaft 2. Also, Fig. 5 (not shown), compression springs (10A) replace the tension spring 10 and co-operating stops (4B), (4C), on the plate 4 and brake 27, 28, limit the effect of the ramp faces (5B), (18B) on the engagement force of clutch 8. In an alternative, the ring 18 is omitted, and compression springs (10C), Fig. 7 (not shown), are mounted in recesses between the plates 4, 5.
Patent GB-1144548-A (GB)
Title: Spectrally sensitized photographic material
Inventor: RIESTER OSKAR
IPC: C09B23/06
Filed: 1967-11-15
Abstract: 1,144,548. Methine dyes. AGFA-GEVAERT A.G. 15 Nov., 1967 [15 Nov., 1966], No. 51909/67. Heading C4P. [Also in Divisions G2 and H1] Dyes are disclosed of the formulµ wherein Z completes a 5- or 6-membered ring which may have a benzene or naphthalene nucleus fused thereto; R is H, alkyl, aralkyl or aryl ; R<SP>1</SP> is as R, or is halogen, nitrile, -OH, alkoxy, -SO 3 H, sulphonic acid ester, alkyl- or aryl sulphonyl, or acyl ; R<SP>11</SP> is alkyl of 1-4 C atoms substituted by a carboxyl, sulpho, phosphoric acid, sulphonamide, acylamidosulphone or sulphoamidosulphone, or by a salt thereof; R<SP>111</SP> is alkyl or alkenyl ; X<SP>1</SP> is -O- -S-, -Se- or -N(R)-CO-; Z<SP>1</SP> is -0-, -S-, -Se- -N(R)-, -C # C- -C(R) 2 -, -CH = N-, or -CH 2 -S-; m is 0, 1 or 2; X- is an anion ; R<SP>IV</SP> is H, alkyl, alkoxy or alkyl mercapto, and n is 0, 1 or 2.
Patent GB-520613-A (GB)
Abstract: 520,613. Rammers. DORNFELD, R. [trading as DELMAG MASCHINENFABRIK, R., DORNFELD]. Nov. 16, 1938, No. 33283. Convention date, Nov. 16, 1937. [Class 107] [Also in Group XXIII] In a percussive rammer driven by compressed air or combustion products of the type shown with a "jumping" cylinder 1 having a piston 2 connected with a ramming plate 5, the plate is capable of being connected at will by a resilient member 6 with a hook 8 or the like on the cylinder. The establishment of this connection enables the operator to change the position of the stamp when the cylinder and plate are raised. In lieu of the resilient coupling the exhaust port below the piston may be closed by a valve.