baber/WOPTO huggingface dataset:
Patent GB-208511-A (GB)
Title: Improvements in or relating to the renewal of the light gas contained in aerostats or other closed capacities
IPC: B64B1/62
Filed: 1923-08-27
Abstract: 208,511. Chenu, A. J. J. Dec. 15, 1922, [Convention date]. Addition to 205,059. Hydrogen.-The gas purifying arrangement described in the parent Specification is modified (1) by the provision of reservoirs 30, 31 for the impure and the purified gases respectively, thus enabling the purifying treatment and the movement of the gases to and from the receptacle 1 to be effected in separate stages, (2) by branching the conduits 4. 5 to open into the receptacle 1 at several points, (3) by substituting for the process of purification by liquefaction, when the light gas used is hydrogen, a process of alternate reduction of heated iron oxide and oxidation of the reduced iron by water vapour. The reservoirs 30, 31 may be arranged to operate under variations of pressure or of volume, and blowers, compressors &c. are arranged to produce the required movements of the gases. In the arrangement shown in Fig. 1 the reservoirs are disposed on branch pipes irom the main circuit through the receptacle 1 and thepurifier 2. In a modification, they are disposed in the main circuit, connected one to each end of the purifier 2, and a valve is arranged between each reservoir and the purifier and between each reservoir .and the conduit 4 or 5 connecting it to the receptacle 1. Fig. 4 shows an arrangement for purifying hydrogen by means of heated iron oxide. The impure gas is delivered through a valve 48 to a furnace or set of retorts 40 containing the iron oxide, and the products pass through a valve 49 into a vessel 41 in which the water vapour is condensed, the non-condensable impurities being discharged through a conduit 45. The valves 48, 49 are then closed and valves 46, 47 are opened. The condensed water is delivered from the vessel 41 to a vaporizer 42 receiving a further supply of feed water, the water vapour passes through the valve 46 to the reduced iron in the furnace or the like 40, and the hydrogen produced is delivered through the valve 47 and the conduit 5 to the receptacle. 1. Twosuch purifying devices may be associated with one receptacle 1, reduction being effected in one device while oxidation proceeds in the other. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also a purification process utilizing the more rapid diffusion of the light gases hydrogen and helium through porous walls. This subject-matter does not appear in the Specificaticn as accepted.
Patent GB-614676-A (GB)
Title: Improvements in or relating to rotary wing aircraft
IPC: B64C27/18
Filed: 1946-07-19
Abstract: 614,676. Rotary-wing aircraft. FORSYTHE, A. G. (Doblhoff, F. L.). July 19, 1946, No. 21663. [Class 4] A rotary-wing aircraft has an engine which drives a propeller at the nose for forward flight and also a compressor mounted within the body of the aircraft, this compressor supplying a fuel - air mixture through ducts to jets in the tips of the rotary-wing blades, the mixture being ignited just prior to its ejection at the jets, whereby the rotary wing is rotated to lift the aircraft. As shown in Fig. 1, the engine 10 drives a variable-pitch propeller 14, on the shaft of which is a fan 11 to cool the cylinders, and at its rear, through a clutch, a rotary compressor 21. The compressor 21 draws air from a duct 20, which is fed by the fan 11, and delivers it through a central hub to channels within the hollow blades 24 of the rotary wing leading to the tips thereof, the blades having a central spider mounting 81, Fig. 5, permitting the usual drag and flapping movements. The engine 10 also drives a pump supplying fuel to the inlet 51 of a control box, Fig. 7, having diaphragms 59 and 61, a loading spring 64 and an adjusting screw 66. Space 68 has an opening 69 which is connected to the delivery pipe of the compressor 21, the pressure therein acting to deflect diaphragms 59 and 61, thereby depressing the needle valve 57 which permits a quantity of fuel, varied with the compressor delivery pressure, to pass in addition to that passing through the fixed jet 53. The fuel outlet from the control box 55 is connected to a vaporizer, heated by exhaust gases from the engine 10, and the fuel then passes to the delivery pipe of the compressor 21, in which, mixed with air, it passes to the central distributing chamber of the rotary wing. This chamber has a fixed lower part rigid with the aircraft frame and an upper part, in gas-tight engagement therewith, but rotating with the blades 21. These parts may be in the form of a hemispherical bowl, Fig. 1, or of an annular ring, Fig. 5. The air-fuel mixture passes by means of flexible tubes 31. into the hollow blades 24, and is ignited at a distributer box 32a, having partitions 32, through which it passes to be ejected at the jets 25. For starting, sparking-plugs 33, located just inward of the distributer boxes 32a and supplied by cables passing down the hollow central axis of the rotor to slip-rings connected to a suitable power source, are used to ignite the mixture, the fuel for which may be petrol or paraffin. The air duct 20, beneath the aircraft, has a vertically pivoted nozzle 26 at its rear end connected to the pilot's rudder bar, by means of which the air stream may be directed to either side to provide lateral control when the aircraft is hovering. Alternatively, a small propeller, located at the tail of the aircraft, may be used.
Patent GB-1462947-A (GB)
Title: Process for reverse coating sheet structures
IPC: B29C41/00
Filed: 1974-05-16
Abstract: 1462947 Laminates BAYER AG 16 May 1974 [19 May 1973] 21739/74 Heading B5N [Also in Divisions B2 and B6] In a process for coating a sheet material with a polyurethane in which the polyurethane is coated on to a temporary substrate which has been coated with a release agent, the sheet material is applied to the polyurethane coating and the sheet material and hardened polyurethane coating then removed from the temporary substrate, the release agent used is a compound or mixture of compounds which at room temperature is soluble or capable of swelling or being made into a paste with water, crystallizes on drying, is not film forming and is tack-free at temperatures up to 40 C. The release agent may be reaction product of water, an oxime, amine or alcohol and/or thioalcohol with a lactam having the formula in which X is a >CH group in which case R is hydrogen and m is an integer of 0-9 or X is a nitrogen atom in which case R is an aliphatic, araliphatic or pyridine group which may be substituted by lower alkyl groups and m is 3. Alternatively the release agent may be urea, a substituted urea; thiourea, a polyvinyl alcohol, dextrin, starch, a sugar, an alginate, a cellulose ether or ester, methylene diurea, methylene thiourea, acetamide, dimethylacetamide, propionic acid amide, formanilide, bisformylated 4,41-diaminodiphenyl methane, diacetyl urea, diacetyl thiourea, dicyandiamide, hexamethylene diurea, bis-methoxymethyl-urea or -thiourea, melamine, trimethylolamelamine, methylolated dicyandiamide, ethyl urethane, adipic acid dihydrazide, a bisurethane, hydrazodicarbonamide, biuret, pentaerythritol, trimethylol propane, sorbitol, glycol carbonate, a diamine or polyamine, NaCl, BaSO 4  or Na 2 SO 4 . The support may be a steel band, cloth or unused or already used, embossed or smooth release paper. A dyestuff or pigment may be included in the release agent, the dyestuff or pigment penetrating the polyurethane coating and being removed with it from the substrate. Pattern effects may be produced by non- uniform distribution of the dyestuff or pigment over the substrate or by the use of differently coloured release agents. The dyed release agent may be applied to the support by means of nozzles, brushes, doctor blades or casting devices. The polyurethane may be applied to the temporary substrate in the form of a solution or aqueous dispersion or as a powder which is then sintered to form a film.
Patent GB-692497-A (GB)
Title: Improvements in and relating to oil filter arrangements for stationarily mounted turbo-generator plant
Inventor: TWYNHAM WILLIAM
IPC: F01D25/20
Filed: 1950-09-05
Abstract: 692,497. Filters. ENGLISH ELECTRIC CO., Ltd. Aug. 24, 1951 [Sept. 5, 1950], No. 21864/50. Class 46 [Also in Group XXXIV] In a stationarily mounted turbo-generator plant wherein a branch pipe 3 leads from the lubricating oil feed manifold 1 under the floor 2 to the bearing pedestal 4, a short length of pipe 6 is inserted between the pipe 3 and a gauze filter element 7, the latter being arranged at the entrance to the bearing pedestal 4. The gauze filter 7 which may be conical is readily taken out after removal of the pipe 6. In a modification, a filter box containing a filter element large enough to obviate a large pressure drop is permanently connected between pipe 3 and the pedestal 4, a pressure gauge on the outlet side indicating .clogging of the filter element. The latter is readily removed for cleaning through a cover of the box.
Patent GB-188786-A (GB)
Title: Improvements in the manufacture of materials to be employed as absorbents and adsorbents of condensible gases and vapours
IPC: B01D53/14
Filed: 1921-08-18
Abstract: Ferric oxide is prepared in a form suitable for use in the absorption or adsorption of condensible gases and vapours.  A ferric hydroxide gel precipitated from a ferric-salt solution is washed, filtered, pressed and dried slowly, first at a moderate temperature and then at a higher temperature.  The hydroxide gel is preferably precipitated from a concentrated ferric-salt solution by means of a dilute caustic-alkali or alkali-carbonate solution, the precipitant being slowly added to the ferric-salt solution, with agitation, until a thick paste is obtained.  The precipitate is washed with water containing small amounts of dissolved matter, filtered, and pressed into slabs or extruded through holes in a die.  The first drying is effected slowly at a temperature of 26 DEG -36 DEG C., a hard brittle product being obtained. The second drying is accomplished either in a current of air at a temperature of 110 DEG -160 DEG  C., or in a vacuum, in which case the temperature is preferably raised slowly from 100 DEG -160 DEG  C., and may afterwards be slowly increased to 250 DEG  C.ALSO:Ferric oxide is prepared in a form suitable for use in the absorption or adsorption of condensible gases and vapours.  A ferric hydroxide gel precipitated from a ferric-salt solution is washed, filtered, pressed, and dried slowly, first at a moderate temperature and then at a higher temperature.  The hydroxide gel is preferably precipitated from a concentrated ferric-salt solution by means of a dilute caustic-alkali or alkali-carbonate solution, the precipitant being slowly added to the ferric-salt solution, with agitation, until a thick paste is obtained.  The precipitate is washed with water containing small amounts of dissolved matter, filtered, and pressed into slabs or extended through holes in a die. The first drying is effected slowly at a temperature of 26-36 DEG C., a hard brittle product being obtained. The second drying is accomplished either in a current of air at a temperature of 110-160 DEG  C., or in a vacuum, in which case the temperature is preferably raised slowly from 100-160 DEG  C., and may afterwards be slowly increased to 250 DEG  C.
Patent GB-1067734-A (GB)
Title: Improvements in digital voltmeters
Inventor: METCALF ERIC
IPC: H03M1/00
Filed: 1964-05-27
Abstract: 1,067,734. Digital voltmeters. SOLARTRON ELECTRONIC GROUP Ltd. May 13, 1965 [May 27, 1964], No. 21986/64. Heading G4H. The voltage to be measured is applied across terminals (T, Fig. 1, not shown), and connected by a switch (S1a, S1b to a capacitor (C1) and a resistor (R1) in series. When the switch transfers the capacitor and resistor are connected between earth and an amplifier (A) having a shunt capacitor. The output passes to a level discriminator consisting for example of a difference amplifier (DA) and a relay (DR) having contacts (S2, S4, S5). One of these (S4) causes the relay to oscillate when the input to amplifier (DA) is negative to earth. Another (S5) operates a counter (B), and the third (S2) connects capacitor (C3) either to a standard potential (VR) for charging or to the input of amplifier (A) for discharging. The input to discriminator (D) is reduced to zero by repeated operation of relay (DR). Each operation subtracts the reference charge on capacitor (C3) from the charge on capacitor (C1). The relay (DR) may be replaced by a free-running multivibrator (MV, Fig. 1b, not shown), coupled directly to the counter (B). The output from the multivibrator controls transistor switches (S2a, S2b) through a coupling transformer. The resistor (R1) may be replaced by a constant current device and the period for which the capacitor (C3) is connected to capacitor (C1) may be varied as the output of the amplifier (A) varies.
Patent GB-351284-A (GB)
Title: Improvements in and relating to wood planing and moulding machines
IPC: B27C1/04
Filed: 1930-07-22
Abstract: 351,284. Wood-working machinery. ROBINSON & SON, Ltd., T. and ROBINSON, F. B., Railway Works, Rochdale, Lancashire. July 22, 1930, No. 22058. [Class 145 (i).] The cutter block 16 of a wood-planing or moulding machine is carried, together with a driving motor 11 or other driving means, on a block 9 sliding in vertical guides 8 and adjusted therein by means of a screw 17 and a hand-driven shaft 22. The outer end of the cutter spindle is supported by a forked bracket 12 projecting from the block 9 clear of the table 5. The device is also applicable to overhand machines or to cutter spindles supported at one end only.
Patent GB-1132167-A (GB)
Title: Improvements in or relating to insulating boards
Inventor: AUBANEL JOHN EDWARD
IPC: E04C2/24
Filed: 1964-11-23
Abstract: 1,132,167. Laminates. CELLAIR Ltd. 8 Nov., 1965 [23 Nov., 1964; 27 Nov., 1964], Nos. 22066/67 and 22067/67. Heading B5N. An insulating board comprises a panel 1 of foamed or beaded plastics material having laminated to one surface thereof a heat and pressure protective layer 2 comprising at least two spaced substantially planar continuous sheets, the space between which is partitioned. The portioning may be effected by flutes, corrugations or a honeycomb structure. The panel 1 may be of polystyrene bead board, foamed polystyrene, or polyurethane foam, and the layer 2 may be of matted or felted particulate or fibrous material; chipboard, asbestos, or other paper; bituminous felt paper; or mineral fibre, e.g. glass fibre matting; faced on one or both sides with aluminium foil. Preferably the layer 2 is corrugated chipboard paper, or corrugated bituminous felt, the latter material being made by coating a laminate of a corrugated felt layer between two outer felt layers with bitumen. The corrugated felt or paper may be multiply. As shown, the panel 1 has laminated to its other face a reinforcing layer of paper, or textile material, e.g. chipboard paper or paper felt. The board is formed by foaming the material of the panel 1 in a trough and contacting the layers 2, 3 with the still plastic surfaces of the panel 1, the material of the panel then being allowed to cool. The boards may be used as heat and sound insulation in floors or roofs, in which latter case they may have a layer of asphalt or bitumen applied hot to the layer 2. The boards may be wedge-shaped and be treated to be non-inflammable. If the panel is to be formed by sticking a paper layer 2 to the panel 1 by adhesive the paper may be treated with waterglass or size to prevent its shrinking.
Patent GB-149610-A (GB)
Title: Improvements in safety locks
IPC: E05B35/00
Filed: 1920-07-23
Abstract: 149,610. Beatrix, J. July 24, 1919, [Convention date]. Night latches and like spring locks; lock mechanism.-The locking-mechanism controlling a bolt or latch r, Fig. 1, is operated by a flat key a, Fig. 3, provided with holes b and a forked end a<2>, which when inserted into a casing c carried by the closing-plate d of the lock enters between a bar e with end flanges f, g, and a bar j connected thereto by parallel links i and normally held away by a spring so that a lug m or this bar engages a recess in a plate h fixed to the closing plate. The bar j carries pins k so arranged with respect to the holes in the key that when the key is inserted the forked end acts on a pin l on, and swings, the bar bringing the pins into engagement with the holes. In this movement, which is only possible when the pins and holes are correctly arranged, the lug m is carried cut of the notch in the plate h, and the forked end engages a crossed slot y, Fig. 1, in the end of a cam v on the door knob spindle. The key can now be rotated and causes the cam v first to lift a plate s' depending from a spring s to disengage this spring from a notch r<2> in the bolt or latch, and then to engage teeth r<1> on the bolt &c. to slide it. In a modification, the bar j may be arranged to move towards and away from the bar e on inclined planes.
Patent GB-644561-A (GB)
Title: Improvements in or relating to sanitary closet basins
IPC: E03D11/02
Filed: 1949-08-25
Abstract: 644,561. Sanitary closets. KULHAVY, B. Aug. 25, 1949, No: 22123. [Class 26] A sanitary closet comprises an outer shell 1 provided with a discharge conduit 2, a removable bell 5 provided with a handle 7 and positioned as shown to form with the conduit 2 a discharge siphon and a removable inner bowl 12, the lower edge 11 of which seats on a ledge formed on the outer shell 1. The inner bowl 12 is also provided, integrally or detachably, with a rim 14, and the inner bowl and rim-may be swung upwardly about trunnions carried by the cover 17 of the flushing nozzle 16. A seat 22 may be provided hinged at 23.
Patent GB-369133-A (GB)
Title: Improvements in valves for pneumatic tyres
IPC: B60C29/00
Filed: 1931-08-04
Abstract: 369,133. Tyre valves. MIC H ELIN ET CIE, Clermont-Ferrand, Puy-de-Dome, France. Aug. 4, 1931, No. 22145. Convention date, Aug. 25, 1930. [Class 135.] A tyre valve casing comprising a base 1 adapted to be secured to the inner tube A by a nut 2 and a body part 3 adapted to house the valve insides has the inner end of the body part formed with a portion of smaller diameter 8 for mounting the coupling nut 5. The nut 5 is externally threaded to engage a socket 7 in the base which has a conical part 11 and a polygonal part 10 to receive a packing washer and a similarly shaped part 9 on the body. In cases where the rim is not of sufficient thickness to accommodate the nut 5 the rimnut 14 may be hollowed out to receive the protruding portion. The body part may be either straight or bent.
Patent GB-862772-A (GB)
Title: Improvements in and relating to electric igniters
IPC: F42B3/12
Filed: 1958-07-10
Abstract: 862,772. Electric igniters. GEVELOT S. A. July 10, 1958 [July 16, 1957], No. 22206/58. Class 9(1). An electric igniter comprising a bead 1 of combustible material covering the bridge wire connecting electric leads 21 22 passing through a plug 3 is protected against moisture by a hood 4 fixed to the plug. The end face 5 of the hood may be conical or flat and has radial grooves 6 along which rupture occurs due to the increase in internal pressure when the bead is ignited. The flame can then pass without the emission of incombustible substances. When the end 5 is flat, it may have a central orifice closed by a thin inflammable membrane instead of the grooves of rupture. The hood 4 may be metal, synthetic plastic, such as polyvinyl chloride, or other waterproof material.
Patent GB-1164702-A (GB)
Title: Improvements in or relating to Off-Loading and Conveyor Arrangements
Inventor: WALKER ARTHUR STANLEY
IPC: B65G67/24
Filed: 1967-05-12
Abstract: 1,164,702. Conveyers for unloading. CRONE & TAYLOR (ENG.) Ltd. 29 April, 1968 [12 May, 1967], No. 22225/67. Heading B8A. Material in a coal or like wagon is discharged, via bottom doors 17, 18 on to vibratory pans 15, 16 which are mounted on a carriage 10. This is power-driven or moved by a pressure fluid so that the carriage can be traversed and a section of rail track 14 aligned with rails 13 of a railway siding. A wagon is run along the rails 13 until its wheels straddle the carriage 10 which is then moved to the position shown in full lines. Material discharges with little or no free fall on to the pans 15, 16 before passing on to a belt conveyer 19. The carriage 10 having been traversed to the position shown in dotted lines, the empty wagon is able to continue along the rails 13 and a further wagon moved up for discharging. The discharge procedure may be automated by means of level indicators or weight sensitive devices. In Fig. 3, an intermediate conveyer 20 connects vibratory pans 15, 16, mounted in line with the rails 13, with the conveyer 19. In Fig. 6, a vibratory or belt type conveyer 21 is in a fixed position between the rails 13 and spill or guide plates 22 are provided. When the conveyer is vibratory flexible strips 23 seal the gap between the rails and the conveyer. The latter discharges on to a belt conveyer 24. There may be two vibratory conveyers 21 to permit simultaneous discharge into conveyer 24. Material from conveyers 19 or 24 may be transferred by an adjustable loader (27) into hoppers (28), Fig. 7 (not shown).
Patent GB-944780-A (GB)
Title: A new or improved hydraulic overload safety device
IPC: B30B15/00
Filed: 1962-06-08
Abstract: 944,780. Rolling. MASSEY SCHLATTER A.G. June 8, 1962 [June 13, 1961; Feb. 2, 1962], No. 22335/62. Heading B3M. [Also in Division B5] An overload safety device comprises a component which is maintained in rigid relation to one roll of a rolling mill by means of internal hydraulic pressure, which is suddenly and quickly released when exceeded by an external force on the component proportional to or equal to the force between the two rolls of the rolling mill, opening a valve comprising the component and a coacting member against the internal pressure. The Figures show two embodiments used on presses. Oil pressure in a cylinder space 12 (Fig. 1), is maintained by a pump or accumulator at about 800 atmospheres. This pressure acts on a hollow plunger 3, sliding in a cylinder 2 and pulls on a spindle 5 screwed into plunger 3, so that a head 8 of the plunger seats on an upper face 9 of the cylinder 2. When the force on face 21 of the plunger 3, resulting from the pressing operation, is sufficient, the plunger is forced up, breaking the seal between head 8 and face 9, and the oil enters a reservoir 23 through a gap 14. On removal of the oil pressure supplied to space 12, a small air pressure maintained through a pipe 24 restores the status quo. The plunger is adjustable relative to the cylinder by rotating the spindle 5 through a gear train comprising pinions 17, 19 and teeth 16 on the head 8. High oil pressure in a cavity 25 helps to maintain plunger 3 rigid relative to cylinder 2 during pressing &c. In an alternative embodiment (Fig. 3), a plunger 3<SP>1</SP> is rigidly connected to a carriage 1<SP>1</SP> of a press in which a hollow cylinder 2<SP>1</SP> slides. Oil pressure is maintained in a cylinder space 12<SP>1</SP> by a pump 35 through a bore 34, until pressure on face 211 forces open the seal between a conical surface 32 of head 8<SP>1</SP> of the piston and face 9<SP>1</SP> of a bushing 6<SP>1</SP> on the cylinder. The device may be reset by a weak spring 42 as shown, or reservoir 23<SP>1</SP> may be sealed by an annular plate 45 and a small air pressure maintained therein, tending to depress cylinder 2<SP>1</SP> after the oil pressure is removed.
Patent GB-686197-A (GB)
Title: Improvements relating to the mounting of furniture drawers
IPC: A47B88/12
Filed: 1950-09-11
Abstract: 686,197. Drawers. BROWN, G. O., [trading as A. G. B. METAL WORKERS]. Sept. 11, 1950 [Sept. 13, 1949] No. 22336/50. Class 52(i) The bottom of a drawer 7 has one or more sleeves 15 which slide over guide rods 12 in the furniture carcase, the drawer opening having a front rail 10 with spaced stubs 11 or ball runners.