baber/WOPTO huggingface dataset:
Patent GB-711466-A (GB)
Title: Fluid pressure control valve mechanisms
Inventor: TREVASKIS HENRY WILLIAM
IPC: B64D37/00
Filed: 1950-05-25
Abstract: 711,466. Valves. DUNLOP RUBBER CO., Ltd. May 22, 1951 [May 25, 1950], No. 13121/50. Class 135 A control valve mechanism comprises a housing 1, Fig. 1, containing an operating chamber 2 connected via nozzle 43 to a device to be operated, a pressure chamber 20 arranged coaxially in chamber 2 and having a connection 21 to a source of fluid pressure, an inlet valve comprising closure member 16 between chambers 20 and 2, an exhaust valve comprising closure member 51, and seat 48 between chamber 2 and exhaust outlets 45, said seat 48 being slidable in the chamber 2, means operable by sliding movement of the seat to open the inlet valve, and a control housing 3 secured to housing 1, and containing a weight 69 operable by centrifugal force to first seat the member 51 and then move the seat 48 to open the inlet valve. The mechanism is shown applied to the pressurizing of an inflatable suit, worn by an aircraft pilot, to counteract the effect of centrifugal force during manoeuvres, when such force exceeds e.g. 2g. The inlet valve comprises a seat 13 on a ported tube 12 slidable in an adjusting block 7 and in closure member 16. Member 16 is attached by pin 29, Fig. 2, to a block 28 carrying parallel levers 31 pivoted to opposite ends of the block and provided at their free ends with rollers 32 engaging the seat 48. Pins 34 extend between the levers and a fixed part of the housing 1. Screw 6a is adjusted so that seat 13 is lightly engaged by knife-edges on block 7 and member 16 under the action of spring 25, and is locked by extension 61c of a spring ring 61. Loading spring 60 acts via plate 55 and U-shaped member 54 to hold the member 51 off its seat. Weight 69 is mounted on lever 70 pivoted at 71 to a movable part 72 and having a ball-race 78 which acts on a lever 66 pivoted at 65 and connected to member 51 through pin 68. Tension springs 76 urge lever 70 in an anticlockwise direction. In operation, when a centrifugal force of sufficient size is present, e.g. in excess of 2g, lever 70 is moved clockwise to close the exhaust valve and then move the seat 48 to pivot levers 31 about pins 34 thereby raising block 28 and closure member 16. Pressure fluid thus passes into chamber 2 and out to the suit and when a pressure corresponding to the force is built up, it raises member 51 and seat 48 to permit member 16 to engage its seat. An increase in the centrifugal force reopens the inlet valve to increase the suit pressure and removal of the force permits spring 60 to close the inlet valve and open the exhaust valve to release pressure from the suit. The abutment of race 78 on lever 66 is movable to a position on either side of that shown in Fig. 1, to change the relationship of force and pressure, by an eccentric pin 84 engaging a slot 85 in member 72, and rotatable by knob 82. The mechanism can be tested at any time by depressing knob 82 whereupon pin 84 abuts lever 70 to operate the valves.
Patent GB-132057-A (GB)
IPC: F01B25/00
Abstract: 132,057. Weir, G. & J., and Lang, C. R. Sept. 13, 1918. Condenser systems.-Relates to steam-condensing and feed-water systems of the kind described in Specifications 130,632 and 130,633, wheiein condensate is withdrawn from a condenser A through a float tank A<1> by a steam-driven directacting hot-well pump C delivering to the suction of the boiler-feed pump under a pressure in excess of atmospheric. The invention consists in providing a virtual head for the hot-well pump C by means of a steam-jet ejector B situated between the condenser and the pump. A non.return valve B<8> is fitted on the suction side of the ejector B. The float F in the float-tank A<1> controls, by means of linkages H, K, L, the supply of steam through a valve D to the engine E driving the pump C.
Patent GB-1175215-A (GB)
Title: Casting Ferromanganese.
Inventor: MALONE LLOYD MCMILLAN
IPC: B22D3/00
Filed: 1967-03-21
Abstract: 1,175,215. Casting processes. UNITED STATES STEEL CORP. 21 March, 1967 [6 April, 1966], No. 13258/67. Heading B3F. In a method of producing sized pieces of ferromanganese without crushing and screening, molten ferromanganese is cast in layers in a confined area 10, the surface of each layer being cooled and solidified before pouring a succeeding layer and the last layer being water cooled, the thermal stresses set up on the solidified surface of each layer and on the water cooled top layer causing fracture cleavages that result in the self-fracturing of the layers into pieces. The size of the pieces can be controlled by varying the thickness of the layers. Each layer may be surface cooled by air or water. The confined area 10 is defined by walls 14 of loose piles of refractory material, which may be ferromanganese, placed on a refractory pad 16 and the walls may be removed for extracting the pieces of ferromanganese. Loose ferromanganese may be spread on the bottom of the confined area to protect the pad 16 from thermal shock and facilitate removal of the cast ferromanganese. The molten ferromanganese is poured from ladle cars 11 movable along tracks to casting areas where the melt is poured via troughs 12 that gently flow the molten metal on to each layer without intermixing and fusion between layers.
Patent GB-570123-A (GB)
Title: Improvements in or relating to buttons
IPC: A44B1/24
Filed: 1943-08-17
Abstract: 570,123. Buttons. STEVENS, A. H. (Waterbury Button Co.). Aug. 17, 1943, No. 13360. [Class 43] A button comprises a 'hollow metal cap 10, bearing a raised design 11 thereon, enclosing and secured to an insert 14 of rigid non-metallic material, garment-attaching means 17 also being embedded in the insert 14 together, with a metal cup 23 which is secured to and reinforces the means 17. The attaching means 17 may comprise a looped wire eye with outturned legs 20, 21.
Patent GB-784980-A (GB)
Title: Continuous filtration apparatus
IPC: B01D29/075
Filed: 1956-05-01
Abstract: 784,980. Filters. AKTIEBOLAGET BOFORS. May 1, 1956 [May 9, 1955], No. 13380/56. Class 46.  An apparatus for continuous filtering comprises a flat circular, horizontal filter plate 1, to which material is fed through the hollow rotatable shaft 3 and evenly distributed over the filter plate by a diffusing nozzle 2 fixed to the shaft 3. The knife 8, fixed to the shaft, extends radially forward of the diffusing nozzle 2 (referred to the direction of rotation). Material not passing through the filter plate 1 is removed by the scraper 8 to the horizontal circular platform 10 mounted on the shaft 3 and extending for approximately 300 degrees from the scraper edge. The material is removed from the platform 10, by a pusher blade 12 operated by a cam 13 fixed to the shaft 3. A vacuum chamber 6 communicates with the lower side of the filter plate 1, for withdrawing the filtrate and drying the solids, and contains a loosening device for the solids comprising an arm 15, rotatable synchronously with the shaft 3 and situated forward of the knife 8, providing an air chest containing a perforated diaphragm 16 and frame 17 which contacts the underside of plate 1 when air is supplied to the air chest whereby air forced through the filter plate 1 loosens the solids above the plate. A washing device 4 fixed to the shaft 3 may be provided which is fed by inlet 19 and channel 5. The horizontal portion of the knife 8, which extends under the diffusing nozzle 2 may be provided with bars or other means to assist the nozzle in providing an even distribution of material over the filter plate.
Patent GB-573696-A (GB)
Title: Improvements in or relating to multiple metal hose clips
IPC: F16L21/00
Filed: 1943-08-17
Abstract: 573,696. Band clips. JAMIE, R. C. S., and HUNT & TURNER, Ltd. Aug. 17, 1943, No. 13396. [Class 44] In a multiple band clip particularly for use in pipe connections on aircraft comprising a number of separate bands, wires, or cables each provided at its ends with loops which receive transverse tubes or spindles common to two or more bands, bridge-pieces are provided engaging the tubes or spindles and having the tightening screw applied thereto. Figs. 2 and 4 show a clip comprising four bands 18-21, each having its ends bent to form loops 3. Adjacent loops of bands 18, 19 receive tubes or spindles 5 with enlarged ends to prevent the loops from slipping off. Alternatively the loops may be removably retained by clips snapping into annular grooves. The bands 20, 21, have similar spindles 5 thus providing, in effect, a pair of two-band clips. The bands may be of flat or curved externally concave cross-section, and are capable of slight lateral rocking movement which may be facilitated by giving the portions of the spindles embraced by the loops a spherical form. The gaps between the looped ends of the bands may be bridged by curved strips 27. The features so far described are as described in Specification 573,695. Tubular distancepieces may be provided on the spindles between adjacent loops, and the bands may be connected together by flexible strips 28 spot-welded to the bands and provided with corrugations 29 as described in Specification 573,697. The present invention provides a pair of bridgepieces 23 having pegs which fit into apertures 24 in the spindles. One bridge-piece has a threaded hole and the other a plain hole to receive a screw 7 for simultaneously tightening all the bands. The head 8 of the screw may be spaced from the adjacent bridge-piece by a conical distance-piece 9, and a conical lock-nut 9<1> may be provided on the other end of the screw as described in Specification 573,698. Instead of the spindles at each end being provided in pairs, single spindles long enough to pass through the loops of the four bands may be provided. Wire or cable may replace the strip material if desired.
Patent GB-1039494-A (GB)
Title: Power transmission belting
Inventor: HAINES WILLIAM MATTISON
IPC: B29C70/36
Filed: 1964-04-01
Abstract: 1,039,494. Belt gearing. GATES RUBBER CO. April 1, 1964, No. 13420/64. Heading F2Q. [Also in Division B5] A power transmission belt comprises a helically wound reinforcement 22, embedded in body 23, of rubber or thermosetting resin, having cog-like portions 26. Good bonding between the reinforcements and the body material is ensured by locating the reinforcement on a grooved mandrel surrounded by a mould, evacuating the moulding space and then introducing the material under superatmospheric or atmospheric pressure. The position and angle of the reinforcement may be varied by altering the pitch of the helix wound upon the mandrel, so that the strength characteristics of the belts may be controlled. In an alternative embodiment overlapping sheets 31, 32 are used as reinforcement. V-belts may be made by using a mould having internal grooves as in Fig. 4, not shown. Metal wire may be used as the reinforcement.
Patent GB-135062-A (GB)
IPC: A01F15/04
Abstract: 135,062. Winship, A. J. Feb. 5, 1919. Baling-presses.-In a press for hay and the like, the ram is actuated by a triangular endless-rack which is adapted to impart a quick inward movement, followed by a slow inward movement and then a quick outward movement. In the press shown, the triangular rack d is pivotally connected to the ram band is formed with internal teeth, engaging driving- pinions l, and with flanges e, engaging guide-rollers m. The flanges are thickened at the corners of the rack. In operation, as the rack is moved into the positions 2, 3, 1, Fig. 6, the ram is moved quickly between the positions 1, 2, slowly between the positions 2, 3, and quickly between the positions 3, 1, respectively. Material may be fed to the press by conveyers n, o and be pushed into the press chamber v by a board p, constrained by linkage t, s, which is actuated by links q connected to the ram. The press may be mounted on a carriage a.
Patent GB-237688-A (GB)
Title: Improvements in or relating to processes for the oxidation of derivatives of aromatic hydrocarbons
IPC: B01J23/22
Filed: 1924-06-02
Abstract: Tin vanadate, a catalyst for the oxidation of aromatic halogen and nitro compounds containing carbon-hydrogen side-chains, is prepared by precipitating stannic chloride with ammonium vanadate in aqueous solution.  Specification 228,771 is referred to.ALSO:Aromatic nitro compounds containing carbon-hydrogen side-chains are oxidized by passage in the vapour phase with an oxygen-containing gas over a metallic vanadate, other than a simple alkali vanadate, at an elevated temperature.  Bismuth and tin vanadates are mentioned and the Provisional Specification makes reference in addition to lead and cobalt vanadates. Halogenated aromatic compounds containing carbon-hydrogen side-chains are oxidized in a similar manner over a catalyst consisting of tin or bismuth vanadate.  The products comprise carboxylic acids, aldehydes and quinones.  According to the examples, p-nitrotoluene yields p-nitrobenzoic acid when passed with air over tin vanadate, prepared by precipitating stannic chloride with ammonium vanadate in aqueous solution; similarly, o-chlortoluene gives o-chlorbenzoic acid, nitronaphthalene leads to nitro-phthalic acid, nitroanthracene produces nitroanthraquinone and p-nitrocinnamic acid-gives rise to p-nitrobenzoic acid.  Other starting materials mentioned are o- and m-nitrotoluene, nitroxylene, nitromesitylene, nitrodurene, nitroethylbenzene, nitropropylbenzene and the corresponding halogen compounds.  Specification 228,771 is referred to.
Patent GB-699707-A (GB)
Title: Coupling means
IPC: B60D1/167
Filed: 1951-06-07
Abstract: 699,707. Couplings. PATTEN, A. G. B. May 28, 1952 [June 7, 1951], No. 13561/51. Class 103 (v). To facilitate coupling a trailer to a tractor, the trailer 1 is provided with an inclined guide 3 which slidingly accommodates a member 6 having a jaw 8 for the tractor drawbar 9 and an upstanding part 7. To couple up the member 6 is positioned towards the lower end of the guide 3 and the tractor backed until the drawbar 9 engages the part 7, thus pushing the member 6 up the guide 3 until the draw-bar enters the jaw 8, a spring-loaded pin 10 automatically effecting a connection. When the tractor is driven forwardly the member 6 is drawn down the guide 3, thus elevating the front end of the trailer and in which position the member 6 is releasably locked.
Patent GB-437954-A (GB)
Title: Improvements in or relating to paving blocks or the like for roads, ways or the like
IPC: E01C5/22
Filed: 1934-05-04
Abstract: 437,954. Paving-blocks. REID, A. F., Trafford Farm, Benenden, Kent. May 4, 1934, No. 13585. [Class 87 (i)] A block for road paving, kerbs, road markings, &c. comprises an inverted channel-shaped metal portion 1 with its top 2 corrugated to provide a key for a rubber face 11 secured thereto either directly or through a layer 10 of hard rubber. The portion 1 may be filled with concrete. The rubber may extend partly down the side walls 4, the upper parts of which may be stepped so that the sides of the block are flat apart from distancing projections 9 which may be formed thereon. Undercut holes 3 may be provided in the top 2 and keying lugs 7 bent out of the side walls 4.
Patent GB-673755-A (GB)
Title: Improvements in or relating to the production of ammonium phosphate
IPC: C01B25/28
Filed: 1949-05-20
Abstract: Ammonium metaphosphate is produced by supplying elemental phosphorus, air in substantial excess of that theoretically required to convert phosphorus to phosphorus pentoxide, say 300 per cent, moisture and ammonia gas to a combustion chamber wherein the phosphorus is burned in the presence of the ammonia to form the metaphosphate in the vapour state, cooling the reaction product at such a rate that the resultant particles of metaphosphate do not decompose to a sticky or glass-like condition, and thereafter recovering the particulate metaphosphate.  Alternatively elemental phosphorus is burned with excess air <PICT:0673755/III/1> <PICT:0673755/III/2> in a combustion chamber to produce phosphorus pentoxide vapour which with gaseous ammonia in the presence of moisture forms ammonium metaphosphate, which is treated in the same way as described above.  In Fig. 1, air, containing ammonia gas from cylinder 10, is pumped by fan 9 into reactor 1.  Molten phosphorus, liquified by heating water in tank 6 by burner 7, is forced by constant head siphon 8 from water filled jar 5 through pipe 4.  The phosphorus burns spontaneously at 600-900 DEG F. to form the ammonium metaphosphate.  The vaporous product is cooled to below 400 DEG F. in a few seconds by the injection of a large initial excess of air and/or by the addition of excess water vapour as a spray to the air supply and/or by water cooling coil 19. The metaphosphate is removed from the gases by filter bags 23 (one shown), which are alternately filled and emptied.  The ammonia feed should be at least 30 per cent in excess of that theoretically required for the production of metaphosphate: the air should be 20-30 times that theoretically required; up to say 900 per cent excess water may be added; and the ratio of ammonia to phosphorus should be between 0.65 : 1 and 2 : 1 by weight.  The rate of feed of ammonia and air is measured respectively by manometers 13, 15 showing the pressure drop across orifices 12, 14.  In Fig. 3, molten phosphorus is burned with air from fan 9 in combustion chamber 47 formed by partition 46 in drum 40 which is connected by pipe 41 with reactor 1 of the type shown in Fig. 1. Drum 40 is cooled by water from spray pipe 45 connected to coil 19.  Ammonia gas could be added with the air from fan 9 or outside the flame zone through pipes 48 at the entrance to pipe 41.  The gases from reactor 1 are passed through U-bend 42 into hopper 43 p  which has six canvas filter bags 44 from which the collected metaphosphate may be shaken into the hopper as product.  A large scale continous operation apparatus is also described where the combustion chamber is enclosed in a fire tube boiler and the filter bags have automatic shaking means.  The gases may be forced through the apparatus under pressure or sucked through by vacuum.
Patent GB-1500144-A (GB)
Title: Adsorbent treating process for removing halochemicals from liquid and gaseous streams
IPC: B01D53/68
Filed: 1975-04-03
Abstract: 1500144 Removing halochemicals from liquid and gaseous streams UOP Inc 3 April 1975 [4 April 1974] 13606/75 Heading C5E In a process for the removal of halochemicals from a liquid stream and a gaseous stream each containing a halochemical the liquid stream is initially contacted with a solid adsorbent, e.g. alumina or bauxite, capable of absorbing the halochemicals present in the liquid and gaseous streams, until the adsorbent is spent so that it is substantially incapable of adsorbing additional amounts of the halochemical from the liquid stream, and then the spent adsorbent is contacted without intervening regeneration with the gaseous stream to effect at least partial removal from the gaseous stream of the halochemical contained in that stream. In the drawing aromatic hydrocarbons entering an alkylation zone 1 through line 2 are reacted in the presence of boron trifluoride with an olefinic hydrocarbon entering by line 3 to form a mono-alkylated product which is removed via line 4. Boron halide-boron oxide hydrate complexes formed during the reaction are withdrawn in an aromatic hydrocarbon recycle stream in line 5 and adsorbed on alumina in a first treating zone 6. Fresh alumina is intermittently fed through lock hopper 9 to the first treating zone in approximately the same amounts as spent alumina is passed through line 27 to an aromatic hydrocarbon recovery zone where a stream of vapour, e.g. steam, off-gas or a hydrogen rich gas, and then a dry gas stream is passed into the zone through line 26 to flush the liquid aromatic hydrocarbons out through line 24. Alumina is then passed through line 23 to the second treating zone 14 where fluorine or boron trifluoride is selectively removed from the off-gas stream removed from the alkylation process via line 19. The treated off-gas stream may then be passed through line 20 to be vented or passed to a gas recovery unit and the alumina removed via lock hopper 16. In an alternate arrangement two treating zones each containing solid adsorbent are provided, the liquid stream being contacted first with the adsorbent in the first treating zone until that adsorbent is spent and then switched to the second treating zone, the gaseous stream being contacted with the spent adsorbent in the first treating zone to effect at least partial removal from the gaseous stream of the halochemical contained therein.
Patent GB-458345-A (GB)
Title: Improvements in surface and particularly mercury vapour condensers for generating steam
IPC: F22B3/02
Filed: 1936-05-15
Abstract: 458,345. Surface condensers; indirectly-heated steam boilers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 15, 1936, No. 13826. Convention date, May 16, 1935. [Classes 64 (iii) and 123 (ii)] A surface condenser, e.g. for use in mercuryvapour turbines in which steam is generated by the condensation of the vapour exhausted from the turbines, comprises a shell 10 having a vapour inlet 14, condensate outlet 15, cooling tubes depending from a water header 11 having a steam outlet 18 and a perforate air exhaust tube 19, the area of the perforations per unit length of the tube decreasing towards the upper outlet end thereof. The flow of air into the condensate outlet is reduced by the provision of a baffle 50 which directs a stream of vapour over the mouth of the outlet. Fig. 3 shows a modification in which the air withdrawn through the perforate tube 38 passes into a water preheater 41 having an inlet 48, an outlet 49, an air outlet 46, and a condensate outlet 47. A stream of vapour is directed over the main condensate outlet 33 by a tube 52.
Patent GB-920591-A (GB)
Title: Magnetohydrodynamic generator of a.c. power
IPC: H02K44/18
Filed: 1961-04-18
Abstract: 920,591. Generators operating by electromagnetic interaction with fluids. AVCO CORPORATION. April 18, 1961 [April 29, 1960], No. 13921/61. Class 35. Current from an MHD generator is inverted to A.C. by means of a mechanical switch device. The fluid duct " X " is provided with a single cathode electrode 13 and pairs of anode electrodes 14, 15 connected to the inverting switch. In the single phase form shown, rotating contact cylinders 17, 18 connect the anode electrodes alternately to either end of a transformer primary 32. Smoothing and commutation are facilitated by choke 35 and condenser 36. It is stated that the inherent rectifying action of MHD generators also aids commutation. A three-phase form is described. The switches need not be rotary.
Patent GB-544510-A (GB)
Title: An improved method of and means for mounting vehicular road wheels
IPC: B60B29/00
Filed: 1940-09-09
Abstract: 544,510. Bolting. ROBERTS, J. R., and ROBERTS, G. M. Sept. 9, 1940, No. 14003. [Class 89 (i)] [Also in Group XXXIV] A device c comprising a closely coiled spring is secured detachably or permanently to one of the bolts a by which a detachable wheel G is mounted on a permanent hub J. The device has a nipple d to facilitate its entry into one of the boltholes H in the wheel. The mounting of the wheel on the hub is thus facilitated, especially in the dark. The connector b may be a sleeve to be screwed on to the end of one of the ordinary bolts, in which case one of the holes H may require to be reamered out to pass over the connector sleeve, or it may screw on to a reduced end of a modified bolt, or the connector may have a reduced threaded male end to screw into the end of the attachment bolt. When permanently secured to one of the bolts, the nipple end of the device will be locked against the wheel after the latter has been mounted. According to the Provisional Specification, the device may also be of rigid form, or it may comprise rubber hose or be a solid rubber bar.