baber/WOPTO huggingface dataset:
Patent GB-1464318-A (GB)
Title: Combustion system
IPC: F23K5/20
Filed: 1975-02-27
Abstract: 1464318 Combustion system C S ARROYOGARCIA 27 Feb 1975 [12 Sept 1974] 8195/75 Heading F4T A combustion system comprises a fuel heating chamber 3, a fuel tank 1 connected to the chamber via a fuel conduit 4, which is in heat exchanging relationship with a drainage conduit 6 of the chamber, means 10 for supplying air to the chamber, and a burner 14 connected to the chamber and an air supply 25. Fuel is also supplied to chamber 3 by a conduit 2, and preferably electronically actuated valves 9 are provided in conduits 2 and 4. Atmospheric air is supplied through a conduit 11 to chamber 3 and also to an outer chamber 16 via a conduit 15, heated oxygenated fuel being supplied to the burner from chamber 3 via conduit 13, and heated air being supplied from chamber 16 through conduit 17. The fuel is heated in a reservoir 28 by an electric induction heater 18. A pilot and spark plug igniter 26 is provided for the burner, and may be controlled through a photo-cell.
Patent GB-515041-A (GB)
Title: Improvements in or relating to catamenial tampons
IPC: A61F13/20
Filed: 1938-03-17
Abstract: 515,041. Catamenial tampons. ROBINSON & SONS, Ltd., and GILLIBRAND, C. G. March 17, 1938, No. 8316. [Class 81 (ii)] A catamenial tampon is formed of a pad of compacted or felted absorbent material such as cotton wool or cellulose wadding, folded upon itself one or more times into a length defining the length of the tampon and so as substantially to enclose a reinforcing strip of woven or knitted fabric, and having a withdrawal cord secured to or held by the pad and strip in any suitable manner. An elongated strip of absorbent material 1 having the fibres mainly disposed at right angles to the length has a length of gauze 2 of less width but equal length laid thereon, the whole being folded with the ends to the middle and then at the middle as shown. Previous to folding a length of cord or tape 3 is laid across the pad and after folding the cord is drawn to the folds as shown and the free ends passed through the loop. In an alternative form the pad is folded only at the centre. To unite the gauze and pad the tampon is stitched along its length in a broken or continuous line The stitching may be continued to form a withdrawal cord. The tampon is compressed and placed in a cartridge. For use the cartridge may be placed in a cylindrical container having one end of reduced crosssection and a plunger at the other to eject the tampon into position. Specification 515,042 is referred to.
Patent GB-1076108-A (GB)
Title: A device for enabling vehicles to climb obstacles, and vehicles comprising the same
IPC: B62D57/00
Filed: 1965-02-26
Abstract: 1,076,108. Assisting vehicles over obstacles. D. JOURDAN. Feb. 26, 1865 [March 5, 1964], No. 8439/65. Heading B7H. Means for assisting an assault vehicle, amphibious vehicle, self-propelled gun or tank to climb an obstacle comprise an arm 2 articulately connected to the vehicle so that the extremity of the arm may be positioned at a point ahead of the vehicle, a winch 23 mounted on the vehicle, a cable 20 wound on the winch 23 with its extremity carried by the arm 2, and means for fixing the extremity of the cable 20 in the ground whereby the cable may be wound in by the engine of the vehicle to draw the vehicle over the obstacle. The arm 2 is pivotally mounted as shown or mounted on articulated levers, and may be telescopic. The winch 23 is driven by a road wheel or track drive sprocket, or by an independent motor. In Fig. 6 (not shown) the winch (23) is mounted on a stub shaft 24 projecting from a track drive sprocket (27) and is driven when dog teeth 31, 32 are engaged by means of an hydraulic actuator (21). A resiliently-loaded brake (26) controls rotation of the drum to prevent entanglement of the cable. The winch 23 is mounted at the front of the vehicle as shown, or may be mounted at the rear with the cable 20 either entrained around a pulley on a front track roller or idler, or through a fixed guide (Fig. 12, not shown) including means for releasing the cable when required. The cable 20 is fixed in the ground by an anchoring plate (Fig. 5, not shown), or by spikes (Fig. 4, not shown) driven into the ground by an explosive charge. A cable and winch may be provided on each side of the vehicle.
Patent GB-1187705-A (GB)
Title: Receivers for Radiotelephone Distress Signals
IPC: H04L15/26
Filed: 1968-02-21
Abstract: 1,187,705. Radio signalling. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 21 Feb., 1968 [24 Feb., 1967], No. 8458/68. Heading H4L. In a radio receiver for distress signals consisting of a carrier modulated alternately by two different predetermined frequencies, the demodulated signal is supplied to terminal E, Fig. 2, and the two frequencies are selected by filters 2 and 3 respectively. The outputs of the filters are combined at S1 and supplied as an input E1 to the normally blocked output stage 13 of the receiver, Fig. 3. The outputs of filters 2, 3 are also amplified by transistors T2, T3 respectively and supplied to detectors 6 and 7 which produce positive square-wave pulses corresponding to the pulses of modulation frequency the mean value of which is fed back to the base of transistors T2, T3. This adjusts the working point of the transistors so that they are saturated at the positive peaks of the input signal whereby the amplitude of the output signals is maintained substantially constant. When the distress signal is superimposed on an interfering signal the mean value fed back alters the working point again and only the distress signal is amplified. The pulse outputs of detectors 6, 7 are also applied to rectifiers and voltage-doublers 8, 9 respectively supplying RC circuits 10, 11 having a time constant which exceeds the pulse duration of the modulation of a channel. In the presence of a distress signal substantially constant voltages appear at the outputs of these circuits which are applied to the bases of normally cut-off transistors T4, T5 respectively of an AND circuit 12 to cause them to conduct so that the potential at terminal S2 falls and unblocks the output stage 13 via terminal E2. With no input signal transistors T4, T5 are cut off by the positive voltage across diode D9 and under these conditions input to only one of the transistors will have no effect. The amplifier 13 is of known type comprising complementary NPN-PNP transistors T8, T9 and class A transistor T7. In the absence of a distress signal (terminal E2 at its maximum positive value) transistor T6 is driven into saturation so that diode D10 is cut off. A switch may be provided to put a fixed potential on terminal E2 corresponding to the open state of the AND- gate.
Patent GB-742645-A (GB)
Title: Improvements in or relating to the manufacture of a magnetic recording medium
Inventor: ANGOLD EDWARD BARNABAS
IPC: B32B27/00
Filed: 1952-04-02
Abstract: <PICT:0742645/IV(a)/1> A magnetic recording member is made by forming on a smooth surface, a layer containing magnetic particles, thereafter applying a backing layer to the first layer and finally stripping the member comprising the two layers from the smooth surface.  The first layer comprising dimethyl phthalate, triphenyl phosphate, cellulose acetate and Fe3O4 in acetone may be passed from hopper 8 to an endless metal band 1 travelling over rollers 2, 3, 5 and partially dried in chamber 10, the second coating comprising similar materials in different proportions but without the magnetic particles being supplied from hopper 9, the two layers being dried in chambers 11, 12 and wound as a composite strip on reel 14. Alternatively the second layer may be applied as a preformed strip, Fig. 2 (not shown).
Patent GB-160777-A (GB)
Title: Methods of converting wood into mucic acid and other products
Filed: 1921-03-18
Abstract: Mucic acid is obtained from woody materials containing galactan, and particularly from the butt portion of western larch, by treating them with a hydrolytic reagent, oxidizing the resulting galactose solution and crystallizing out the mucic acid; oxalic and saccharic acids are obtained as by-products.  Thus the sawdust from western larch may be digested three or more times with a diluted inorganic acid, or with the mother liquors containing nitric, nitrous and oxalic acids &c., from the mucic acid crystallization, but preferably by 2 per cent sulphuric acid, the same liquid extracting successive quantities of sawdust in the usual manner.  The sugar solution may be concentrated, either in open pans or in vacuo, the strong acids partially or wholly neutralized and the oxidation effected electrolytically, or by various oxidizing agents, particularly air with oxides of nitrogen, or nitric acid; the action in the latter case is accelerated by the addition, if necessary, of nitrous acid.  The oxidation process may be made continuous by allowing the sugar and nitric acid solution to flow down a jacketed coil at a suitable temperature.  On cooling, mucic acid separates out and is removed; the mother-liquors may be used in the extraction of the sawdust or may be repeatedly used to oxidize more sugar until the content of oxalic and saccharic acids is sufficient to permit of the isolation of these acids by their calcium salts.  Galactonic and gluconic acids are also mentioned.  The oxides of nitrogen resulting from the oxidation by nitric acid may be oxidized by air in the presence of a catalyst such as silica gel or platinum on a cellular filler and absorbed to give nitric acid in the usual manner; a complete cycle of operations is thus attained.  The mucic acid may be purified by forming the mono- or di-ammonium or other salt, decolourizing and reprecipitating by sulphuric acid. The ammonia may be recovered by distillation with lime and absorption in crude mucic acid; or as ammonium sulphate. Specification 160,776 is referred to.ALSO:Mucic acid may be used in dyeing in place of tartaric acid; particularly for reducing the chromic acid when dyeing wool with alizarine upon a chrome mordant.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) states that mucic acid may be used in cleaning compounds in place of cream of tartar, tartaric acid, or citric acid.  This subject-matter does not appear in the Specification as accepted.ALSO:In the manufacture of mucic acid &c. by the oxidation of galactose solutions by means of nitric acid, the oxides of nitrogen evolved may be oxidized by air in the presence of a catalyst such as silica gel or platinum on a cellular filler and absorbed to give nitric acid in the usual manner.
Patent GB-526480-A (GB)
Title: Improved flexible pneumatic spring for vehicle suspensions
IPC: F16F9/04
Filed: 1939-03-17
Abstract: 526,480. Pneumatic springs. GENERAL MOTORS CORPORATION. March 17, 1939, No. 8544. Convention date, March 25, 1938. [Classes 108 (ii) and 108 (iii)] A pneumatic spring 24 consists of a number of superposed inflated closed-ended sleeves made of flexible material and arranged for compression at right angles to the sleeves. A pneumatic spring and fluid reservoir 22 are arranged between a chassis frame 20 and a wishbone link member 28, the latter being pivoted to the frame at 30 and to a king-pin support 32 for the front wheel. The upper end of the king-pin support is pivotally attached to an upper link 34 forming an arm of a shock-absorber 36 bolted to the frame 20.
Patent GB-1394310-A (GB)
Title: Blow moulding method and apparatus
IPC: B29C49/66
Filed: 1973-02-21
Abstract: 1394310 Blow-moulding J MEHNERT 21 Feb 1973 [22 Feb 1972] 8593/73 Heading B5A In a blow moulding process, a preform is formed on a blowing mandrel and blow-moulded thereby and the blowing mandrel is removed from the blow-mould after blow-moulding is completed but before the article is sufficiently cool for removal from the mould and an auxiliary pressure-supplying member is brought to the mould to pressurize the article until it is sufficiently cool for removal from the mould. As shown in Fig. 2, a preform is formed on mandrel 3 in injection mould 1 while an article 7 previously blow-moulded in blow-mould 2 is supplied with compressed air through member 3<SP>1</SP> via duct 8 in a guide 5 having valve 9 open and valve 10 closed. The moulds 1, 2 which may both be split, are then opened, article 7 removed, mandrel 3 lowered into guide 5 which is moved to position the mandrel in the empty blowmould 2 for blow-moulding the new preform. In the embodiment of Figs. 3-5 (not shown), mandrel 3 and member 3<SP>1</SP> are both integral with guide 5 and the preform is formed by dipmoulding. In the embodiment of Figs. 6, 7 (not shown), two blow moulds each have a member 3<SP>1</SP> and the blowing mandrel 3 reciprocates between these and preform mould 1. The member 3<SP>1</SP> may act to calibrate the neck of the article 7 and may supply a filling medium thereto.
Patent GB-1060691-A (GB)
Title: Methods and moulds for casting structural elements
Inventor: BENNIMAN FREDERICK PETER
IPC: B28B23/00
Filed: 1964-02-29
Abstract: 1,060,691. Moulding concrete. C. BRYANT & SONS Ltd. Feb. 23, 1965 [Feb. 29, 1964], No. 8594/64. Heading B5A. Structural elements of cementitious material containing inserts or apertures are made by casting cementious material in a mould cavity coated with release agent at least two walls of which are formed of pre-cast cementitious material in which support means for the inserts or for forms for the apertures have been incorporated, the mould walls being disassembled after the cementitious material forming the element has become self-supporting. A battery of moulds may be formed to produce a plurality of elements. A mould wall 20 is formed by casting concrete on a horizontal steel surface within the confines of a U-shaped wooden frame 24 which forms part of the mould wall, wooden or plastic support means (60) being incorporated therein during the casting (Fig. 4, not shown). The walls are assembled in a row by means of lifting cranes engaging hooks screwed into threaded sockets provided along the upper edges of the mould walls, and wooden end stops 22 provided to complete the moulds. The two end mould walls are provided with internally threaded sockets on their outer faces, whereby bracing members 34 may be bolted thereto. Inserts such as electrical switch housings are nailed to the support means (60) and cementitious material cast into the mould cavities. When this has set the moulds are disassembled whereupon the nails are pulled off the support means leaving the insert incorporated in the formed element.
Patent GB-107750-A (GB)
Title: Improvements in or relating to Suspension Devices for Motor Vehicles.
Inventor: ESNAULT-PELTERIE ROBERT
IPC: B60G11/36
Filed: 1917-06-15
Abstract: 107.750. Pelterie, R. Esnault-. July 6, 1916, [Convention date]. Addition to 2299/15. Laminar springs.-Cantilever springs of the type described in the parent Specification have the point of suspension i of the axle almost in the line of but slightly below the points of attachment b j of the upper springs.
Patent GB-791181-A (GB)
Title: Turn signaling arrangement for vehicles
IPC: B60Q1/38
Filed: 1956-03-20
Abstract: 791,181. Retractive switches. HOLLINS, J. R. March 20, 1956, No. 8680/56. Class 38 (5). [Also in Group XXXVIII] A selector switch for direction indicators on vehicles is provided with electromagneticallyreleased latching means that retain the operating member in its operated position, and is also provided with contacts to close the circuit of a heater winding of a thermostatic switch which, after a predetermined heating interval, energizes the latch-releasing means to allow the selector switch to revert to its neutral position. The heater winding of the thermostatic switch is arranged to be in parallel with the brake-operated stop lamp switch on the vehicle such that operation of the brake pedal short-circuits the heater winding to prevent premature cancellation of a turn signal while, due to heavy traffic conditions, for example, the vehicle is waiting to make a turn. A selector lever 15 is pivoted at 12 to a dielectric base 11 and urged by springs 13 into its neutral position as shown. When moved to either side a switch 14 or 141 is closed to connect signal lamps on the right or left respectively to the battery BA via flasher FL. A spring-loaded latch 20 of magnetic material (forming an armature for an electromagnet 26) holds the lever 15 in the operated position where a conductive plate 18 on the lever 15 engages a contact 31 or 31<SP>1</SP> to complete the circuit of a heater winding 36 or 36<SP>1</SP> respectively, via stop lamps SL, which are not lit owing to the high resistance of the heater windings. After a predetermined heating interval a bi-metallic strip 35 or 35<SP>1</SP> closes its associated contact 40 or 401 to energize electromagnet 26 which attracts latch 20 to allow the lever 15 to revert to its neutral position. If the brake pedal BP is depressed during a turn signal the switch BPS shunts the selected heater winding to light stop lamps SL and the heating period does not commence until the brakes are released. In a modification (Fig. 2, not shown) the latching part of lever 15 is made of conductive material and when in the operated condition completes a circuit between the latch and contact 31 or 31<SP>1</SP>. Battery is connected through the electromagnet to the latch and hence via the selected heater winding and stop lamps SL, but the electromagnet is not sufficiently energized to attract its armature owing to the high resistance of the heater winding. Contacts 40, 40<SP>1</SP> are arranged to short-circuit their respective heater windings when closed and thereby energize the electromagnet sufficiently to attract the latch and release lever 15.
Patent GB-370169-A (GB)
Title: Improvements in or relating to cooking ranges
IPC: A47J37/12
Filed: 1931-03-21
Abstract: 370,169. Frying-ranges. NUTTALL, H., Castle Works, Bridge Street, Rochdale. March 21, 1931, No. 8704. [Class 126.] The bottom of the pan 1 of a frying-range is connected by a slanting portion 8 to the side nearest to the outlet aperture 4 by which the gases pass from the combustion chamber, the bottom edge 5 of the aperture 4 being substantially level with the bottom of the pan, and the aperture preferably extending across the side. A streamline effect is thereby produced in the gases causing a vigorous circulation over the pan bottom.
Patent GB-834465-A (GB)
Title: Improvements in or relating to microwave modulators
Inventor: GIBSON ALAN FRANK
IPC: H03C7/02
Filed: 1957-03-18
Abstract: 834,465. Waveguide accessories. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 11, 1958 [March 18, 1957], No. 8775/57. Class 40 (8). [Also in Group XL (c)] A microwave modulator comprises a waveguide with reduced section 2 and a semiconductor block 3 extending from conductive contact with one wall of the guide to occupy a slot 7 in the opposite wall without conductive contact with the opposite wall and a modulating source 11 applying a signal voltage across the semi-conductor, parallel with the E vector in the guide, to vary its absorption of the electric field, the absorption decreasing as the modulating voltage increases. The semi-conductor block 3 may be secured to the slot edges by mica and the modulation lead 9 secured to a non-injecting N+ region of enhanced conductivity formed on the block. Bulkheads containing liquid dielectric such as silicone oil or carbon tetrachloride may surround the block to cool it, or the liquid may be circulated through a cooling' radiator, or cooling fins secured to the guide adjacent the block. Adjustable stubs in the guide may be provided before and after the block to prevent reflection from the block. Choke-structures may be associated with the slot edges to prevent radiation. The modulation may be a short pulse, the modulator having short time response and wideband characteristics.
Patent GB-169191-A (GB)
Title: Improvements in and relating to electric arc welding systems
IPC: B23K9/10
Filed: 1920-03-25
Abstract: 169,191. Holslag, C. J. March 25, 1920. Heating by electricity.- A welding tool is connected to a low potential circuit when not in use so as to prevent shocks, and is automatically connected to a welding circuit of higher voltage either by closure of a switch on the tool or by contact of the tool with the work. In the system shown in Fig. 2, the electrode 12 is connected through a solenoid 8 with ne secondary winding 2 of a transformer. the other end of the winding 2 being connected to the work 13. On contact of the electrode with the work, the circuit is completed and the solenoid raises a switch member 9 so as to connect contacts 10, 11 whereby an additional secondary winding 3 together with steadying resistances 6, 7 is connected across the solenoid. A series coil 14 retains one switch member in position. The windings 2, 3 are provided with tappings 4, 5. The automatic connecting means are mounted on or within the transformer. In a modification, the series coil 14 is dispensed pensed with. In another modification, the solenoid 8 is cut out when the high-voltage source is connected in circuit. The solenoid 8 may be energized by a special winding on the core of the transformer or by the secondary coil of an auxiliary transformer, instead of by the main secondary coil 2. An adjustable resistance and a reactance may be connected in the welding circuit. The invention is applicable to direct current systems. Specification 133,013 [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-997796-A (GB)
Title: Improvements in or relating to formwork
IPC: E02B5/02
Filed: 1962-03-07
Abstract: 997,796. Shuttering for casting panels, dams &c. J. BOSSNER. March 7, 1962, No. 8823/62. Heading E1S. Formwork for casting the inclined walls of canals, tunnels, dams &c., comprises shuttering 14 supported on a frame 12 and rams 13 vertically adjustable on the frame 12 the whole movable along the canal &c. on rails 10, the shuttering 14 being adjustable about pivots 17 on the bottom of the rams 13. To move the apparatus to the next casting position when the concrete has set the shuttering 14 and rams 13 are raised by jacks 20. The shuttering 14 is supported on the rams 13 by a beam 18 and struts 16 having slotted connections 23, 26 to allow for angular adjustment of the shuttering, these connections being released when the angle of the shuttering is adjusted by the rams 13.
Patent GB-116758-A (GB)
Title: Improvements in or relating to the Manufacture of Fertilisers.
Inventor: ROBINSON JOHN ROBERT
IPC: C05F17/00
Filed: 1917-06-20
Abstract: 116,758. Robinson, J. R. June 20, 1917. Manures are obtained by treating with yeast under conditions to encourage growth, peat, peat moss, soil, and cellulosic or soil-like materials such as rape meal, castor meal, seed husks or refuse, sweepings from maltings, residues from beet sugar refineries, decayed vegetable matter, sludge from cesspools, road sweepings, destructor residues, &c, The materials are ground or finely divided, mixed with a lime compound such as caustic or burnt lime, carbonate of lime, limestone or dolomite, and treated with yeast at temperatures of 70-100‹ F. Phosphatic materials such as steamed bone flour, basic slag, ground coprolites, or ground mineral phosphates, potash compounds such as the chloride or sulphate, kainit or flue dust, sodium chloride or magnesium sulphate may be added before the treatment with yeast.