baber/WOPTO huggingface dataset:
Patent GB-354182-A (GB)
Title: Improvements in and relating to thermionic valves
IPC: H01J21/02
Filed: 1930-04-28
Abstract: 354,182. Thermionic valves and valve circuits. BLONDEL, A. E., 41, Avenue de la Bourdormais, Paris. April 28, 1930, No. 13087. Convention date, April 27, 1929. [Classes 39 (i) and 40 (v).] Thermionic valves are provided with two grids acting respectively as control and accelerating grids and interlaced on the same surface between the cathode and an anode-screening grid. The interlaced grids may comprise two wire helices G<1>, G<2>, Fig. 3, or two series of wire loops 10, 11, Fig. 5, and are arranged concentrically around a filament F which may form the cathode or may heat a surrounding cathode tube. A stirrup 2 supports the screening grid G<3> and an oval anode P is supported from one side by a metal or glass support 6, a terminal 12 being connected to the anode or to the stirrup 2. In a modification, two cathodes are each separately surrounded by two interlaced grids separated from the anode by a screening grid, the filaments being in series or parallel. In a frequency-changing circuit, Fig. 1, the grids G<1>, G<2>, G<3> are connected respectively to a wavereceiving circuit K, to a point of the anode battery through a high-frequency choke S preventing highfrequency currents from reaching the battery, and to the anode of a local heterodyning valve M directly or indirectly. In a high- or mediumfrequency amplifier, Fig. 2 (not shown), with an indirectly heated cathode and with the plate circuit supplied from a rectifier, the grid G<3> is connected to the high-tension supply through a choke and may be connected to the grid G<1> through a reaction condenser, the grid G<1> being biassed negatively by a resistance carrying the current through the valve. The Specification as open to inspection under Sect. 91 (3) (a) comprises also modifications of the circuit of Fig. 1 in which frequency-changing is effected by reaction of the screening grid on the accelerating grid or in which the interlaced grids are connected respectively to a wave-receiving circuit K, Fig. 2 (Cancelled), and to a tuning circuit L<2> connected to the anode circuit, an additional grid G<0> acting as an accelerating grid. This subject-matter does not appear in the Specification as accepted.
Patent GB-131232-A (GB)
IPC: F02F7/00
Abstract: 131,232. Rackham, G. J. Jan. 31, 1919. Crank chambers; bed-plates.-To facilitate dismounting &c., a two-stroke cycle or other engine is bolted to a flange on a crank-shaft bearing 2 formed on or secured to a base-plate 1 which, as shown in Fig. 1, may carry an electric generator 5. By removing bolts 11, the cylinder and crank chamber may be detached, the connecting-rod being free to slide on the crank-pin.
Patent GB-848710-A (GB)
Title: Bearing assemblies, particularly for high-speed spindles of spinning and twisting machines
IPC: F16F15/023
Filed: 1958-04-25
Abstract: 848,710. Spinning spindle bearings. STAUFERT, H. April 25, 1958 [April 27, 1957; May 25, 1957], No. 13157/58. Class 12 (1). Bearings for a spinning or twisting spindle 1 comprise an upper roller bearing 2 and a lower footstep bearing 3, the latter being mounted in a hermetically sealed damping chamber 5 filled with damping fluid. The body 5 is supported in a cup 6 and a valve 11 is provided. In a modification, the upper bearing 2 is also provided with a damped mounting, Fig. 2, the lower footstep bearing 3 being suspended within the hollow body 5. In another modification, the bearings are supported in a common cylindrical mounting by sealing members 15, 18, Fig. 3, which form hermetically closed damping chambers 13, 14. Fig. 5 shows an embodiment in which the closing member 22 is integral with a resilient corrugated cup insert 23 supporting the footstep bearing. In a further modification, the footstep bearing 3 is mounted in tubular members 25 which are spaced by a member 26 and small helical compression springs 28. Alternatively, the inner sleeve may be cup-shaped and the springs 28 retained or omitted. The wall of the cup may be corrugated.
Patent GB-579815-A (GB)
Title: Improvements in or relating to apparatus for delivering an anchor, sinker or the like through the hull of a ship
IPC: B63B21/22
Filed: 1941-10-13
Abstract: 579,815. Anchors. GRASEBY, R. C. Oct. 13, 1941, Nos. 13161/41 and 14107/42. [Class 113 (i)] In an apparatus for delivering an anchor, sinker or the like through the hull of a ship, the anchor 2 is normally contained in a tube 1 mounted over a hole 3 in the hull 4, ingress of water be ing prevented by a gate valve 5. In the form shown in Fig. 1, the anchor 2 has pivoted flukes and it is ejected when required by a rod 7 which passes through a closure cap 6 on the tube 1 and also through a closure cap 11 which screws on a spigot-like guide 10 forming part of the closure cap 6. The ejector 7 is formed with an enlarged member 9 which fits the tube 1, and the cable 14 passes through the ejector and through a final closure member 12 which permits passage of the cable but is made watertight by packing as are the closures 11, 6. In the modification, Fig. 4, the anchor 2 is adapted to be ejected by compressed air admitted by a valve 20 to the top of the tube 1, and the anchor is formed of a flexible built-up nature and comprises circular dish-like washers or plates 21, separated by washers 22 threaded on a flexible wire 23 and held by a nut 24. The tube 1 is formed with an extension 27 below the valve 5. The top and bottom flukes are fitted with rubber discs 26 which act as pistons and facilitate ejection. When the anchor is ejected, the valve 20 is closed and the compressed air prevents ingress of water. The cable 14 is attached to the anchor by threading it through an axial hole 29, Fig. 5, in the stem 35 of the anchor and passing a loop over a pin 32 formed in a cut-away part 30. The pin 32 is then covered by shaped plates 33 held in position by a screw or screws 34. The cable 14 may be wound round a drum provided with braking and measuring means as in Specification 579,814, [Group XXX].
Patent GB-1396363-A (GB)
Title: Incombustible panel
IPC: B32B17/12
Filed: 1972-03-21
Abstract: 1396363 Laminated foam silicate panels K SHIMIZU 21 March 1972 [24 March 1971] 13220/72 Heading B5N [Also in Division D1] An incombustible panel which may form part of a laminate is formed by impregnating a sheet of a non-woven fabric made of a synthetic fibre material, e.g. a polyester, cellulose acetate or polyamide with a foamable sodium or potassium silicate and drying by heating at a temperature in the range of 100 to 300 C. while controlling the foam thickness with an applied pressure, e.g. of 50-2,000 grams/sq. cm. Such panels may be laminated together optionally interleaved with a metal, e.g. aluminium sheets, by heating or with an adhesive. A metal sheet may also be laminated to the top of a stack of such panels. The non-woven fabric may comprise a binder. The impregnant may be admixed with a silicone resin or a metal salt or oxide. The panels may be coated with paint.
Patent GB-568259-A (GB)
Title: Improvements in and relating to evacuated electronic apparatus
IPC: H01J37/20
Filed: 1942-09-18
Abstract: 568,259. Electron discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 18, 1942, No. 13226. Convention date, Sept. 19, 1941. (Class 39 (i)] [Also in Group XXIX] A vacuum enclosure in an electronic apparatus, such as an electron microscope, includes a support 21 for the object and a closure member for introducing the object, and further closure members 56 and 57 may be operated to isolate the object chamber from the rest of the apparatus by means including a deformable structure 61. When the members 56 and 57 are closed, as shown, the object may be introduced without affecting the vacuum in the rest of the apparatus, and the object chamber may then be evacuated. Nut 67 is then rotated, which depresses cylinder 71 and diaphragm 63 and open members 56 and 57 through linkages 65 and 66. Further advantage may be taken of the deformability of the corrugated portion 61' by the use of micrometer screws 78 which move the diaphragm 63 transversely and thus position the object in the electron stream.
Patent GB-693328-A (GB)
Title: Improved mask band for photographically printing films
IPC: G03B27/16
Filed: 1951-06-04
Abstract: 693,328. Masking bands for controlling printing exposures. DEBRIE, A. V. L. C. June 4, 1951 [April 30, 1951], No. 13232/51. Classes 98 (i) and 98 (ii). A mask-band for controlling the exposure light in motion-picture printers comprises a pair of transparent bands secured together to form a number of contiguous equal compartments in each of which is secured light-filtering means adapted to adjust both the intensity and colour of the printing light for a particular scene. As shown, the transparent band 2 is stamped with grooves 6 across its width and is cemented to the transparent band 1 at the apices of the grooves to form compartments 4 for the filters. Alternatively the band 2 may be flat and merely bowed along its length during the cementing stage by removable spacers, or the two bands may be secured in parallel relation by means of spacers separating each compartment from the next. Specification 600,161 is referred to.
Patent GB-374223-A (GB)
Title: Improvements in and relating to skis
IPC: A63C5/04
Filed: 1931-05-05
Abstract: 374,223. Skis. CARR, H. 0., 49, Grafton Road, Acton, and LILLYWHITES, Ltd., Criterion Buildings, Piccadilly Circus, both in London. May 5, 1931, No. 13285. [Class 132 (i).] Skis are formed with soles of rustless metal such as rustless steel, flexible brass, duralumin, &c., extending from edge to edge of the ski and for the greater part of its length. The sole plate b, Figs. 1 and 2, is secured to a wooden base f by screws and extends substantially over the, whole length of the ski, the ends d being left uncovered to prevent damage. The ski tapers slightly from the point 1 to the heel c and the upturned part is thicker than the body and heel parts. Parts h are cut away for lightness. The sole plate is secured by countersunk screws of softer material than the sole with their heads sunk below the sole plate, the holes being of the same or greater angle of countersink than that of the screws. In order to provide flexibility the sole may have a longitudinal slot corresponding with a similar groove in the base or a groove may be formed in the body only. The feet may occupy a position as shown in Fig. 3.
Patent GB-706205-A (GB)
Title: Improvements in or relating to synthetic lubricants
IPC: C10M105/34
Filed: 1951-06-05
Abstract: Esters of formula R COO R1 where R is a branched chain alkyl group having 7-16, preferably 8-13 and particularly 8 or 9 carbon atoms corresponding to that of an acid made by the oxo-process, e.g. by the reaction of a copolymer or polymer of a C3 and a C4 olefine with CO and water in the presence of a carbonylation catalyst or by the oxidation of corresponding oxo alcohols or aldehydes made using hydrogen in place of water and wherein R1 is a branched chain alkyl group of 7-16, preferably 8-13 and particularly 8 carbon atoms corresponding to that of an alcohol made by the oxo process, e.g. by reaction of a copolymer or polymer of a C3 and a C4 olefine with CO and excess H2 in the presence of a carbonylation catalyst. Oxo synthesis conditions specified are temperatures of about 300-400 DEG F., pressures of about 1,000-3,000 p.s.i. with cobalt carbonyl as catalyst.  Polymer or copolymer olefines are made by conventional polymerization processes, e.g. by passing the olefine stream in liquid phase over acid catalysts such as phosphoric acid on kieselguhr or silica gel, copper phosphate, sulphuric acid and Friedel-Crafts catalysts.  With phosphoric acid temperatures of 300-500 DEG F. are used and pressures of 250-5,000 p.s.i. Feed-stocks may comprise 15-60 mol. per cent. propylenes, 0.5-15 mol. per cent. butylenes, 0.1-10 mol. per cent. isobutylene or the dimer and trimer of isobutylene.  The oxo-alcohol may be oxidized by treatment at 235 DEG F. with an equimolar quantity of sodium hydroxide or mixture of 50 per cent. sodium hydroxide and 50 per cent. potassium hydroxide.  Oxo aldehydes are oxidized with air or nitric acid.  The products are synthetic lubricants (see Group III). In Examples (1) a C8 oxo alcohol is esterified in toluene with a C8 oxo acid in the presence of p-toluene sulphonic acid, and in (2) a C8, and (3) a C13 oxo alcohol is similarly esterified with a C9 oxo acid.ALSO:Lubricating oil compositions comprise esters of formula RCOOR1 where R is a branched chain alkyl group of 7-16, preferably 8-13 and particularly 8 or 9 carbon atoms corresponding to that of an acid made by the oxo process, e.g. by the reaction of a copolymer or polymer of a C3 and a C4 olefine with CO and water in the presence of a carbonylation catalyst or by the oxidation of corresponding oxo alcohols or aldehydes made using hydrogen in place of water and where R1 is a branched chain alkyl group of 7-16, preferably 8-13 and particularly 8 carbon atoms corresponding to that of an alcohol made by the oxo process, e.g. by reaction of a polymer or copolymer of a C3 and a C4 olefine with CO and excess H2 in the presence of a carbonylation catalyst.  Mixtures of esters may be used and other synthetic esters, e.g. acrylate and methacrylate copolymers and fumarate vinyl acetate copolymers may be present as thickeners. Example 4 shows tests on a lubricating oil made by blending an ester of a C8 oxo alcohol with a C9 oxo acid with an ester of a C9 oxo acid with a C13 oxo alcohol.
Patent GB-143255-A (GB)
Title: Improvements in and relating to means for rendering aircraft invisible from below
IPC: B64D47/02
Filed: 1918-04-03
Abstract: 143,255. Leggelo, P. B. van. Jan 5, 1918, [Convention date]. Visibility of aircraft, diminishing.-This is effected by the use of reflectors 1 hinged at 2 underneath the aircraft and adjustable by means of cords 3 so as to reflect the clouds and sky to an observer on the ground.
Patent GB-292326-A (GB)
Title: Improvements in or relating to refrigerating apparatus of the absorption type
IPC: F25B39/02
Filed: 1927-05-18
Abstract: 292,326. Fitzpatrick, H. D., (Lier, S. K. D. M. van). May 18, 1927. Refrigerating, absorption machines and processes for. - The upper ends 18 of the coils 17 of an evaporator comprising an upper refrigerant liquid tank and a lower header connected by the coils and end-pipes 19 are disposed above the liquid-level in the tank to avoid noise during evaporation.
Patent GB-894996-A (GB)
Title: Improvements relating to spring-loaded shut-off valves
Inventor: CLARKE WILLIAM ARTHUR
IPC: B67D1/08
Filed: 1960-04-14
Abstract: 894,996. Hose connections; dispensing liquids by gaseous pressure. WHITBREAD & CO. Ltd. Feb. 17, 1961 [April 14, 1960], No. 13387/60. Classes 99(1) and 102(2). A self-closing valve fitting to a filling and dispensing opening 3 in a beer keg 4 comprises a body 1 arranged to fit in the opening and which has therein inner and outer annular valve seats 12, 13 and a port 43 in the wall thereof between the seats, a valve ring 14 movably mounted between the seats, a valve closure member 17 movably mounted on the inner side of the ring, and a tube 23 extending inwards from the inner end of the body. The ring is normally held on the outer seat 13 and the closure member is held against the ring by a spring 21 so that the two parts together close the valve. The ring is arranged to be moved by a spigot, which in use is inserted into the opening 3, on to the inner seat 12 to form a seal between this seat and the spigot and allow an outer passage 33 in the spigot to communicate with the keg through the port 43; the closure member is arranged to be moved by the spigot out of contact with the ring to allow an inner passage 38 in the spigot to communicate with the keg through the tube. Separate springs engaging the ring 14 and member 17 may be employed to allow the ring member, which act as two separate valves, to operate independently of each other. As shown, the cup-shaped member 1 and a ring 2 are held in the opening 3 by a screwed ring 10 provided internally with a quick-action screw-thread 11 which co-operates with projections on the spigot. The latter has connected thereto hoses 36, 41 respectively for carbon dioxide and beer and communicating with the passages 33, 38.
Patent GB-926752-A (GB)
Title: Improvements in or relating to rotary electrical machines
IPC: H02K3/26
Filed: 1960-04-14
Abstract: 926,752. Dynamo-electric machines having planar air-gaps and printed windings. NORMACEM. April 14, 1960 [April 22, 1959], No. 13402/60. Class 35. In a rotary electrical machine having a planar air gap between the rotor and stator thereof, the gap is at least partly filled by a layer of P.T.F.E. or other flexible insulating substance having a similarly low coefficient of friction and which is attached to the rotor or stator and prevents or limits rotor distortion. In the Fig. 2 embodiment shown, the rotor comprises an insulating support disc 5 mounted on a shaft 6 and on the two faces of which are printed flat-winding conductors, the stator comprises a solid or spirally rolled sheet metal annular magnetic yoke 1 together with a yoke 2 carrying permanent magnets 3 having pole shoes 4, and two P.T.F.E. layers 10, 11 are secured respectively to the disc 5 and yoke 1. Alternatively, both layers may be secured either to the rotor, or to the stator, or a layer may envelop the disc 5. An annular interruption 13 allows access to the rotor conductors by brushes, not shown. Fig. 5 shows a hysteresis motor comprising a rotor disc 23 of hysteresis sheet metal disposed between two annular ferromagnetic members 21, 22 to the latter of which is fixed a coil-carrying disc 18. Reference has been directed by the Comptroller to Specification 874,394.
Patent GB-170248-A (GB)
Title: Improvements in and relating to variable speed gear of the friction disc type
IPC: F16H61/664
Filed: 1921-05-12
Abstract: 170,248. Frisby, L. C. L. May 12, 1921. Variable-speed friction gearing arranged on a motor-vehicle comprises a disc a driving a roller b slidable on a shaft c, which is disposed transversely of the vehicle and connected by bevelgearing f or worm gearing to a longitudinal propeller shaft g. A bearing d supporting one end of the shaft c is urged by a spring d<2> towards the disc a so as to produce proportional pressure. The drive is disengaged by a pedal. A striking-fork h engaging the roller b slides without turning on a bar i and is operated through links j<1>, j<2> and a bell-crank lever i from a hand-lever j<3>. 170,248.
Patent GB-143525-A (GB)
Title: Improved process of treating metallic ores
IPC: C21B13/00
Filed: 1920-05-17
Abstract: 143,525. Moffat, J. W. April 30, 1918, [Convention date]. Extracting.-Oxide ores are reduced without fusion and cooled in batches to below the temperature at which re-oxidization can occur, whereupon the product is transferred to an electric-arc furnace and melted. The reduction is effected without using a flux, and the metal is cooled to below 250‹ C. ; any flux necessary for melting is added to the charge in the electric furnaces.
Patent GB-1007691-A (GB)
Title: Improvements in or relating to methods of stamping and assembling stator laminations for electromotors with phase-displacement
IPC: H02K1/14
Filed: 1964-04-02
Abstract: 1,007,691. Core constructions. COMPAGNIE ELECTROMECANIQUE. April 2, 1964 [May 2, 1963], No. 13593/64. Heading H2A. A laminated stator for a shaded pole motor is formed by clamping together two stacks of identical blanked sections 1, each stack being riveted together and fitted with field windings over the yoke 3, auxiliary windings in the apertures 18 and shading rings on the yoke arms before clamping. The clamping may be effected by means of external binding or a collar.
Patent GB-1379692-A (GB)
Title: External combustion engines
IPC: F02G3/02
Filed: 1972-03-23
Abstract: 1379692 External combustion engines G VAN AVERMAETE 23 March 1972 [7 April 1971 3 March 1972] 13633/72 Heading F1S An external-combustion engine has at least two cylinders 2, 3-associated with a combustion chamber 4 and compressed air pressurized in one cylinder 2 is delivered at constant pressure into the combustion chamber, is subjected to an increase of pressure and is expanded in the other cylinder 3 together with combustion products. An inlet valve 1 has the seat 5 thereof arranged so that the valve opens towards the outside of the cylinder and the inlet valve have a direct control device. A control system is provided for an exhaust valve 12 of the other cylinder which system is so adjusted that the exhaust valve shall be closed before the piston 13 of the other cylinder reaches its upper dead centre. Cobustion products remain inside the other cylinder and are pressurized by the piston 13 to balance the pressure on the face of the inlet valve that is biased by the combustion products from the combustion chamber. A device for cooling the inlet valve 1 comprises a compressed air feed pipe 14 which opens into a stationary skirt around the inlet valve head.
Patent GB-108930-A (GB)
Title: An Improved Can Holder for Motor Vehicles.
Inventor: GOODING HENRY CORNISH
IPC: B60R9/02
Filed: 1916-09-26
Abstract: 108,930. Gooding, H. C. Sept. 26, 1910. Petrol cans, detachably securing to running-boards and other flat bases.-A can-holder comprises a frame a attached to the step &c. of the vehicle and provided with an upstanding rim d with an inturned part e to engage the bead on the can, and an eccentrically-pivoted bar h which can be put in engagement with the bead on the can and fixed in position by means of the operating-lever i and the catch j. Holes may be provided in the lever i and catch for a padlock. The projection c is provided for unscrewing the can stopper.
Patent GB-841635-A (GB)
Title: Process for the production of 5-nitro-2-furfuraldehyde semicarbazone
IPC: C07D307/76
Filed: 1957-04-30
Abstract: 5 - Nitro - 2 - furfuraldehyde semicarbazone is prepared by heating an aqueous acid suspension of 5-nitro-2-furfuraldoxime with sodium nitrite solution, and treating the resulting 5-nitro-2-furfuraldehyde with a semi-carbazide salt.  The nitrofurfural separates as an oil, and may be treated with the semi-carbazide after addition of alcohol to dissolve the oil and decolorization with animal black, or after separation of the oil and purification by vacuum distillation or solution in a solvent and treatment with animal charcoal.
Patent GB-1475291-A (GB)
Title: Electrical circuit board game
IPC: A63F13/54
Filed: 1976-04-06
Abstract: 1475291 Board game EPOCH CO Ltd 6 April 1976 [15 Aug 1975] 13867/76 Heading A6H An electrical circuit board game comprises a plurality of playing pieces 24 which can be inserted into pairs of holes in the board to contact strips and to complete a circuit between a signalling means and a source of electrical energy (batteries). Rotary contact switches 20 can be rotated by the players to alter the circuit and prevent a player memorizing the connections. Magnetic inserts in the board assist in holding the pieces in tight contact with the circuit strips.  The means signalling the completion of a circuit are a light 18 and a motor-rotated eccentric producing a noise.
Patent GB-994841-A (GB)
Title: Improvements relating to web location devices
IPC: G11B15/64
Filed: 1962-04-11
Abstract: 994,841. Feeding webs. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. April 11, 1962 [April 13, 1961], No. 13899/62. Heading B6B. [Also in Division G5] A magnetic tape 8 is urged transversely against a guide-step 6, when fed in the direction 13 by vacuum applied through an aperture 14 to one or more shallow recesses 9, 10 in a guide assembly 4, upstream of transducers 23. A block 5 with reciprocally-directed features is supplied with vacuum for reverse-feeding. The leading edge of the slot may be a knifeedged scraper (Fig. 3, not shown), and the vacuum serves to remove any detached or loose foreign matter.