baber/WOPTO huggingface dataset:
Patent GB-2474885-A (GB)
Title: A breathing gas system for an aircraft having emergency and auxiliary gas supplies
Inventor: TUCKER PAUL
IPC: A62B7/14
Filed: 2009-10-30
Abstract: An aircraft (10) includes a cabin (12) for the aircrew (14) which is pressurised in normal flight, and a deployment door (16) which is opened in high altitude flight when the cabin (12) will be depressurised, to enable a passenger (20) and/or a load (18) to be deployed from the cabin (12) to the ground. The aircraft (10) has an installed breathing gas system (24) providing a limited capacity supply of breathing gas to the aircrew (14) in the event of an emergency. The breathing gas system (24) includes a face mask (30) for each aircrew (14), a source (26a, 26b) of gas being substantially pure oxygen, and a line (28) from the source (26a, 26b) to the face masks (30). Prior to take-off it is determined whether the mission plan includes depressurising the cabin (12) and opening the deployment door (16) at high altitude, and if so loading onto the aircraft (10) an auxiliary breathing gas system (40) for supplying the aircrew (14) both during a preparation period prior to the planned cabin depressurisation when the cabin (12) is pressurised and during the cabin depressurisation, and connecting the auxiliary breathing gas supply system (40) to the installed breathing gas system (24) so that when required breathing gas is supplied to the or each face mask (30) along at least a part of the line (28) from the auxiliary breathing gas supply (40).
Patent GB-1474494-A (GB)
Title: Switching devices
IPC: C08K3/26
Filed: 1975-03-11
Abstract: 1474494 Multiple photo-flash unit GENERAL ELECTRIC CO 11 March 1975 [15 April 1974] 10013/75 Heading G2X [Also in Division H1] A multiple photo-flash unit comprises a plurality of flash-lamps 22-25, 27-30 in a common mounting, each lamp having its own reflector 22'-25', 27'-30', and the lamps being connected, by means of a printed circuit board, so as to fire individually in sequence, there being immediately adjacent each lamp, except for the final one in the firing sequence, a radiation sensitive switching device 63 which is switched permanently from a highly resistive state to a conductive state by the absorption of heat radiation from the flash. This causes the next lamp in the sequence to be brought into the circuit preparatory to the next flash. Fig. 3 shows how a switching device 63 is mounted beneath a window in the reflector 23'. Each switching device 63 is composed of a carboncontaining silver salt dispersed in a humidityresistant organic polymer binder (see Division H1). Fig. 2 (not shown) illustrates a printed circuit board lay-out which arranges the eight flash-lamps in two sequences of four, each sequence having a corresponding terminal tab 18,18' Fig. 1 for mounting on a camera.
Patent GB-550265-A (GB)
Title: Improvements relating to reaping and binding machines, harvesting machines and the like
IPC: A01D67/00
Filed: 1941-08-07
Abstract: 550,265. Safety wheels. ROWE, A. Aug. 7, 1941. No. 10036. [Class 108 (ii)] [Also in Group In a reaping and binding, harvesting or like machine in which the reaping or other mechanism is driven from a power take-off on a tractor, a carriage 12 having subsidiary wheels 15 is mounted on the axle bar 14 of a carrying wheel 10 for supporting the machine at substantially normal height when the wheel 10 enters a depression of less width than the wheel base of the carriage so that the machine may be worked on rough ground at unslackened speed without undue shock, one, or each end 122 of the carriage being articulated as at 121 and braced by a detachable strut 17 so that it may be turned down to hang clear of the framing when the wheel 10 is raised for road travel. The wheels 15 may be supported clear of the general ground surface so that they only come into use when the wheel 10 enters a depression.
Patent GB-1499584-A (GB)
Title: Process for manufacturing phosphoric acid
IPC: C01B25/22
Filed: 1975-03-11
Abstract: 1499584 Phosphoric acid containing calcium phosphates; purifying phosphoric acid NORSK HYDRO AS 11 March 1975 [19 March 1974] 10094/75 Heading ClA A process for the production of phosphoric acid containing calcium phosphates, i.e. Ca-containing phosphoric acid, from the Ca-containing mother liquor derived from the Odda process, in which substantially all remaining nitrate and fluorine are removed in the form of HNO 3 , HF and SiF 4  by evaporation, comprises maintaining the Ca/P weight ratio of said Ca-containing mother liquor below 0À45, evaporating 37 a mixture containing the said mother liquor to provide said Cacontaining phosphoric acid, recycling a portion 10, 12 of the already evaporated Ca-containing phosphoric acid 14 by adding said portion to said mother liquor before the latter enters the evaporator zone to form said mixture which is evaporated, and controlling the recycling of said Ca-containing phosphoric acid to maintain a liquid mixture phosphorus concentration during evaporation outside a concentration range of from 15% by weight to 22% by weight, thereby preventing said liquid mixture from becoming pasty. The process may further comprise a preliminary evaporation stage thereby forming a two-stage process, wherein in the preliminary evaporation stage (stage 1) the P- concentration is kept below 15 wt. per cent, while in the second stage (stage 2) the P-concentration is kept above 22% by means of recirculation of Cacontaining phosphoric acid, the stages proceeding simultaneously during processing. After production has continued for a given period the first and second stages may then be reversed so that any sealing formed in the original stage 2 is removed by now operating this stage as stage 1. Finely divided silica 11 may be added to the mother liquor 36 before evaporation to make the fluorine compounds present more volatile. The mother liquor used may be one from which the major part of solid fluorine compounds has been removed together with acid-insoluble sludge, e.g. in centrifuge 35.
Patent GB-295918-A (GB)
Title: Tensioning device for bow and like saws
IPC: B27B21/06
Filed: 1928-04-04
Abstract: 295,918. Sarx, P. April 4, 1928. Saws.-In a frame saw of the kind wherein the saw blade is stretched between arms projecting from a bridge or back member, one of the arms being angularly adjustable to vary the tension, the back member is curved towards the blade and connected at a point between its ends by a toggle device to a rearward extension of the pivoted arm. The arm g is pivoted at h to one end of the curved back a and the arm k has a sleeve i adjustable on the other end of the back. An extension of the arm g is connected by a link d to a lever b pivoted to the back at c.
Patent GB-364454-A (GB)
Title: A holder for adapting yellow screens and extension lenses to lens mounts
IPC: G03B17/12
Filed: 1931-04-07
Abstract: 364,454. Lens fittings. MœHLENBEIN, O., 18, Anglerstrasse, Munich, Germany. April 7, 1931, No. 10232. [Class 98 (i).] A holder for extension lenses, yellow screens & c. adapted to grip the lens mount comprises three two-armed levers connected by links and bearing grippers engaging the mount at three points 120‹ apart. In the form shown the arms g<1>, g<2>, g<3> are mounted on two-armed levers d<1>, el, d<2>, e2, d3, e3 joined by operating links i<1>, i<2>, i<3>. The lever d<1>, el is extended to form an operating handle k and a spring m is provided to keep the handle pressed outwards so that the arms g<1>, g<2>, g<3> normally tend to grip the lens mount o. Pins p moving in slots q in the holder serve to guide the arms e<1>, e<2>, e<3>. The link i<3> may be omitted.
Patent GB-288437-A (GB)
Title: Improvements in riddles and dust pans
IPC: F24B15/00
Filed: 1927-04-14
Abstract: 288,437. Pearce, A. B. April 14, 1927. Hand-sieves.-A combined dust-pan and cinder riddle comprises a closed receptacle divided into two compartments A<1>, A<2> by a screen A<3> and which are closed by doors B<1>, B<2>, respectively, hinged to the front edge of the screen. A handle C is also provided. Ashes are shovelled or swept into the lower compartment A<2> and the device is then inverted to separate ashes and cinders.
Patent GB-578930-A (GB)
Title: Improvements in machines for use during the application of card clothing to the cylinders or doffers of carding engines
IPC: D01G15/92
Filed: 1944-05-31
Abstract: 578,930. Applying card clothing to carding engine cylinders &c. DRONSFIELD, S. W., and DRONSFIELD BROS., Ltd. May 31, 1944, No. 10433. [Class 120 (i)] [Also in Groups XXVI and XXXV] A device for slowly rotating the cylinder or doffer of a carding engine during the application of a fresh ribbon &c. of card clothing comprises a wheeled carriage 57 supporting a prime mover, preferably an electric motor 3, a driving sprocket 16, geared to the prime mover by reduction gearing 4, a detachable chain 17 for coupling the driving sprocket 16 to a sprocket on the driving gear of the cylinder or doffer shaft, after such sprockets have been brought into alignment by the displacement of the carriage, and a jockey sprocket 18 displaceable in the plane of the chain to tighten the same. The manipulating handle 23 of the sprocket 18 is carried by a plate 20 which pivots about the shaft 25 of the reduction gearing, the plate 20 being fixed in the adjusted position by a bolt 22. The carriage may be disconnected from the chassis 1 carrying the prime mover &c. at the points 8, 9. A clutch may be incorporated in the drive. The Provisional Specification describes a 3-wheeled carriage, the third wheel being attached to a bell-crank lever to enable that end to be lowered to the floor.
Patent GB-165575-A (GB)
Title: A new or improved photographic camera body or frame and method of manufacturing same
IPC: G03B17/02
Filed: 1920-04-15
Abstract: 165,575. Houghton-Butcher Manufacturing Co., Ltd., and Denniss, A. J. April 15, 1920. Cameras, roll-film; cases and carriers for; special materials for.-A sheet-aluminium roll-film collapsable camera body constructed without jointing- material consists of an inner portion enclosed by closely fitting and abutting front and back cover portions, the inner portion comprising at least the exposure frame and the two spool troughs. In the construction shown in Figs. 1, 2, and 3, the inner portion A, made from one piece of sheet aluminium, consists of the exposure frame 1 and two spool troughs 2, 3. The exposure frame 1 is stiffened by a rib 4, which also ensures the necessary clearance between the frame and the back cover C for the passage of the film. The front portion B consists of a tray with an aperture corresponding to the exposure frame 1, this aperture being formed by bending up two wing pieces 12 suitably flanged so that they may be secured to the front face of the exposure frame by rivets. The two cover portions B, C, when fitted together, as shown in section in Figs. 6 and 7, completely enclose the inner portion A. The bellows is secured to the front of the cover portion B. In some modifications the inner portion is made with approximately semicircular spool troughs and is built up in sections, while in other modifications the inner portion is developed by bending only from a sheetmetal blank, the front portion being modified as necessary. Specifications 6754/99 and 7360/99 are referred to.
Patent GB-975189-A (GB)
Title: Material suitable for use in upholstery and the like
IPC: C08J9/33
Filed: 1961-03-23
Abstract: A method of bonding fragments of resilient cellular material comprises mixing the fragments with a bonding agent comprising a mixture of a liquid polyurethane foam regenerate with a polyisocyanate and shaping and curing the product. Fragments which can be bonded include latex rubber foam and/or polyurethane foam of the polyester or polyether type. Regenerated liquids can be prepared by heating the foam, usually at 150 DEG  to 200 DEG C., in the presence of additional polyether and/or polyester and an accelerator such as a tertiary amine or an organic tin compound or esters, alkyl esters and salts of the metals of Group IV, V and VI of the periodic system. Alternatively fragmented waste is regenerated by heating to destruction in a closed vessel at 250 DEG C. without catalyst or 175 DEG  to 200 DEG C. with a catalyst. Preferably fragments moistened with regenerate are spread in layers in a mould provided with slits and curing is effected by placing the mould in saturated steam. As an alternative the fragments are first moistened with water, the bonding agent is applied, and the moulded mixture is allowed to stand at room or elevated temperature. In examples (1) regenerated liquid is obtained by heating at 170 DEG C. a mixture of polyether foam fragments, polypropylene glycol and N,N-dimethyl-benzylamine. Polyether foam fragments are stirred with this liquid mixed with toluene diisocyanate. The mixture is compressed in a slitted mould and heated with steam and then in dry air; (2) a mixture of regenerate liquid (obtained by heating polyether foam at 250 DEG C. in a closed vessel), toluene diisocyanate and dibutyl tin dilaurate is used for bonding polyester foam fragments on to a jute fabric to give a material suitable for use as carpet underlay.ALSO:A material suitable for use as carpet underlay is prepared by applying to a jute fabric in a mould a mixture of polyester foam fragments, a polyurethane foam regenerate (obtained by heating polyether foam at 250  DEG C. in a closed vessel), toluene diisocyanate, and dibutyl tin dilaurate.  The mixture is compressed by the lid of the mould and exposed to steam.  The moulded material is then dried in warm air at 80  DEG C.
Patent GB-1387219-A (GB)
Title: Redundant pitch link
IPC: B64C27/59
Filed: 1973-03-05
Abstract: 1387219 Linkwork BOEING CO 5 March 1973 [28 April 1972] 10628/73 Heading F2K A dual load path adjustable length pitch control link 8 for rotary wing aircraft, e.g. helicopter rotor blades, is formed as a double turnbuckle having two independent load paths only one of which, in normal use, is operative as a load carrier whereby in the event of fatigue or structural failure in the one, i.e. primary load path, the normally isolated other, i.e. secondary load path becomes operative to prevent loss of control of the aircraft. The double turn buckle comprises outer and inner barrel members 12, 22 jointly retained by a screw 40 and into the ends of which are screwed outer and inner rods 14, 16 and 24, 26 forming the primary and secondary load paths respectively. Universally jointed ball ends 30 are fitted each end, the ball sleeve 32 being a close fit in the outer, i.e. primary load rods 14, 16 and a clearance fit in the inner, i.e. secondary load rods 24, 26, the clearance gap being filled with resilient teflon fabric to prevent vibrational chatter and subsequent fretting therebetween. Additionally, teflon is utilized along the outer faces 36 of the inner rods 24, 26 and between the inner and outer barrel members 12, 22. The length adjustment of the link may be effected by providing rods 14, 24 with threads of an opposite hand to that of the thread on rods 16, 26 or by providing rods 14, 24 with threads of a different pitch from that of the threads on rods 16, 26, lock nuts 46 screwing to retain the link in any set length. The inner rods 24, 26 may be cut away (42) (Fig. 4, not shown) to partially overlap and facially abut each other to prevent relative rotation therebetween to provide a torsional load capability therebetween.
Patent GB-470907-A (GB)
Title: Improvements relating to the construction of ships
IPC: B63B1/10
Filed: 1936-01-20
Abstract: 470,907. Ships' forms. ENGELMANN, R. Jan. 20, 1936, No. 10637/37. Divided out of and addition to 455,466, under which a Specification was laid open to inspection under Sect. 91 of the Acts, July 20, 1936. [Class 113 (ii)] A ship's form as described in the parent Specification is modified to improve water flow conditions by forming ir the under-water hull for ward of the super structure e, a recess h which extends transverse ly of the hull as in. dicated at i. The recess merges forward and aft the forward end of the superstructure in the general contour of the otherwise fusiform underwater hull. Alternatively, a bulge k is formed forward of the superstructure. The superstructure is provided with lateral fins 14, Fig. 9, which run in an easy downwardly-directed curve from the forward part of the superstructure.
Patent GB-1095524-A (GB)
IPC: B29C51/14
Filed: 1965-03-12
Abstract: 1,095,524. Drawing thermosetting sheet material. KALLE A.G. March 12, 1965 [March 13, 1964], No. 10657/65. Heading B5A. A hollow article of thermosetting plastics material is made by spreading a layer of said material in a fluid state upon a base sheet of a polyamide, covering the layer with a second sheet of polyamide, vacuum forming the laminate thus formed whilst heating it to cure the resin, and finally removing the base and cover sheets. The material may be an unsaturated ester, an epoxy, or an acrylate and may be reinforced by, e.g. glass fibres. In the embodiment illustrated in the Figure the laminate 1, 2, 3 is clamped across a vacuum mould 4 and partially drawn into it, the part in contact with the mould, i.e. areas adjacent the clamping ring, being heated and cured whilst the other parts are cooled by, e.g. water 8. The water is subsequently removed and the laminate fully drawn into the mould and the remaining part cured. Reference has been directed by the Comptroller to Specification 895,339.
Patent GB-275296-A (GB)
Title: Constructional and floatable model vessels built with metal plates
IPC: A63H33/06
Filed: 1926-04-23
Abstract: 275,296. Rackham, L. W. April 23, 1926. Ships; mechanical constructions, details for building up.-Model ships, Fig. 1 and 2, are built up of sheet metal units shaped to form sets of keel plates A, bilge plates B and strake plates C, the ends of the units being adapted to be joined to the ends of similar units to form fore-andaft sections, and the sides of the units being so shaped and/or provided with connecting strips that longitudinal joints may be formed between the sections. The stem E and stern D may be built up from units or may be formed as integral units for attachment to the hull. The hull is strengthened by transverse stretcher frames F that carry deck plating, Fig. 1, funnels, masts, and other fittings. The plates are connected together by tongue and socket joints, the keel plates being formed on both sides and at one end with sockets a<2> and at the other end with a tongue a', while the bilge plates are formed at opposite sides and ends with tongues and sockets respectively. The strake plates are formed with a socket at one side and a tongue at the other and are fitted together as shown in Fig. 12. In modifications, Figs. 15, 17, 19 and 20, the longitudinal joints are made by connecting strips c', c', a<7>, a<8> of the cross-section shown. The interior surface of the ship may be served with a jelly-like or plastic cement to prevent leakage.
Patent GB-1404243-A (GB)
Title: Recovery of copper
IPC: C22B15/00
Filed: 1973-03-06
Abstract: 1404243 Recovering copper ANACONDA CO 6 March 1973 [7 March 1972] 10688/73 Heading C1A Copper is recovered from sulphidic minerals by leading a slurry of the minerals in aqueous solution containing ammonium sulphate and free ammonia in one, or sequentially in a series of closed leaching vessels at low pressure (<10 p.s.i.g.) at a temperature of 50-80 C., whilst recirculating oxygen bearing gas from above the slurry to below the surface thereof, vigorously agitating the slurry with a power input of 0À05 hp./cu.ft. of slurry and introducing fresh oxygen into the slurry, and withdrawing from the vessels a solution containing the copper complexed with the ammonia. Free ammonia may be added to at least the first of the vessels at a rate equal to its consumption, and the concentration of the ammonia may be correlated with the slurry temperature which gradually rises through the series whilst the pH decreases from about 10 to 9À5. The solution may be treated to recover the copper and form ammonium sulphate solution which may be recycled to the leachy. The copper containing solids residue may be subjected to a secondary leaching under substantially the same conditions as the initial leaching.
Patent GB-288579-A (GB)
Title: Process for the improvement of the properties of iron-beryllium alloys
IPC: C21D6/00
Filed: 1928-04-11
Abstract: 288,579. Siemens & Halske Akt.-Ges. April 12, 1927, [Convention date]. Annealing; tempering.-In a process for the improvement of iron-beryllium alloys, which may contain other metals, the alloys are quickly cooled in air or by quenching from temperatures above 550‹ C. and then are heated to a temperature of 250-500‹ C. The alloys may be worked mechanically before treatment.
Patent GB-674912-A (GB)
Title: Means for dynamic balancing of rotating bodies whilst running
IPC: G01M1/22
Filed: 1950-05-02
Abstract: 674,912. Machine tool details. TOS CELAKOVICE, NARODNI PODNIK, and SKRIVAN, K. May 2, 1950 [May 3, 1949], No. 10743/50. Class 83 (iii). [Also in Groups XXIII, XXIV and XXXV] Means for the dynamic balancing of a rotating body comprise one or more weights 9 constrained to move along guiding means 7 rotatable with the body, and externally-operable control means 21, 27 for effecting positive adjustment of the weight. The balancing device is mounted by a screwed stub 6<SP>1</SP> on the hub 2 of a grinding wheel 4. The weight 9 has a projection 8 engaging the spiral groove 7 and projections 14, 14<SP>1</SP> engaging slots in an internal gear 10. The internal gear is rotated in one or other direction by the knobs 21, 27 until balance is obtained. In a modification, Fig. 9, a weight 50 is adjusted along oppositely screw-threaded rods 44, 45 and about the centre of a gear 40 by reversing gearing,similar to that in the previous example. The devices may be used for balancing grinding wheels, milling cutter heads, motor rotors, spindles, &c.