baber/WOPTO huggingface dataset:
Patent GB-893006-A (GB)
Title: A method and apparatus for preparing a required concentration of anaesthetic
IPC: A61M16/18
Filed: 1961-01-24
Abstract: 893,006. Anaesthetic apparatus. HARTMANN & BRAUN A.G. Jan. 24, 1961 [Jan. 26, 1960], No. 2746/61. Class 81 (2). In order to prevent a patient receiving an excess of anaesthetic, the respirable gas is brought into contact with anaesthetic which has been adsorbed or dissolved. In one form of apparatus, a container 9 encloses active carbon 16 and is charged by passing anaesthetic gas through it from inlet 10 to outlet 11. These orifices may then be closed, by caps 13, 12, until the container is required for use when it is connected in the breathing circuit so that respirable gas passes through it, entraining the gas as it does so. In another form, the anaesthetic is dissolved in an oil and respirable gas is bubbled through it as it flows to the patient. In the latter case the concentration of anaesthetic is determined by an hydrometer but in a further modification further anaesthetic is added to the solution through a valve controlled by a float influenced by the specific gravity of the solution. In each case the total, quantity of anaesthetic administered may be predetermined and, owing to the slow release of anaesthetic from its container, the concentration is kept within safe limits.
Patent GB-548248-A (GB)
Title: Improvements in or relating to the manufacture of transparent papers and artificial fibres
IPC: D01F9/04
Filed: 1941-02-28
Abstract: 548,248. Artificial filaments, films, &c. CEFOIL, Ltd., and ROSE, R. C. Feb. 28, 1941, No. 2764. Drawings to Specification. [Class 2 (ii)] A solution of a soluble alginate is formed into filaments or films and coagulated in a bath containing in addition to an acid a soluble salt which facilitates the coagulation of a strong film or fibre, but does not itself produce an insoluble alginate. The salt is used in a concentration adequate to cause substantial strengthening of the film. 'An alkali salt of the acid employed may be used, e.g. sodium sulphate with sulphuric acid. Sodium sulphate may be used in a concentration of more than 10 per cent anhydrous salt, and the sulphuric acid may be of 5 per cent strength. Concentrations of sodium sulphate up to saturation may be used. The temperature of the coagulation bath is preferably fairly low, e.g. 20‹C. In an example, a solution of alginate passes from a feed hopper with adjustable slot into a coagulating bath containing dilute sulphuric acid and sodium sulphate. The film thus formed, passes into another bath containing dilute sulphuric acid, and then into a washing bath of water. From the water bath the film passes into a bath containing an aqueous solution of glycerine. The film then passes round heated drying cylinders which reduce the free moisture content to not more than 30 per cent. The film passes to a conditioning chamber and thence to a wind-up roller. The film may be produced at a speed of 30 feet per minute. Specifications 21586/12, [Class 2 (iii)], and 530,889 are referred to.
Patent GB-1423731-A (GB)
Title: Scanning apparatus intended for use in facsimile transmission systems
IPC: H04N1/04
Filed: 1973-01-19
Abstract: 1423731 Facsimile FAXON COMMUNICATIONS CORP 19 Jan 1973 [20 Jan 1972 4 Dec 1972] 2902/73 Heading H4F A facsimile transceiver comprises a stationary support 12 for a document which is raster scanned by a flying spot scanner 11, e.g. a CRT, and an elongate photo-electric sensor 212a which intercepts only diffusely reflected light from the document and is moved in synchronism with the vertical component of the raster scanning i.e. at right angles to the light spot line scan direction. Specifically the sensor comprises two parallel elongate photo-electric sensors 212a and 212b whose outputs are summed, the incident scanning light spot passing through a slit therebetween. Alternatively one of these sensors may be replaced by a mirror. During reception of the resulting video signal the flying spot is modulated and a photosensitive medium is disposed on stationary support 12. Support 12 is preferably curved about an axis parallel to the line scan direction, and the photo-electric sensor assembly is arranged to rotate about its longitudinal axis as it is moved over the document this being achieved by curved guide 210. The video signal is preferably transmitted using frequency modulation over a telephone line, which a first level of modulation of the duration of each line synchronizing pulse and a second level of modulation immediately before and immediately after each synchronizing pulse. In addition at the beginning and end of a synchronizing pulse the level of modulation only changes at a zero crossing of the modulated output signal. The duration of the line synchronizing pulses is preferably made adjustable, the distance between scanned lines being proportional to this duration. Reference is made to moving the photo-electric sensor in synchronism with both horizontal and vertical scan directions of the flying spot.
Patent GB-100824-A (GB)
Title: An Improved Gauge Tap for the Fuse Holes of High Explosive Shells.
Inventor: HODGES MARCUS HENRY
IPC: B23G5/06
Filed: 1916-02-28
Abstract: 100,824. Hodges, M. H. Feb. 28, 1916. Taps, having a body provided with slots to permit expansion by a core b, have an internally coned nut d to lock the sections after adjustment. The arrangement is particularly intended for sizing-taps for the fuse-holes of shells, in which case the part d' of the nut acts as a pilot.
Patent GB-495097-A (GB)
Title: Improvements in or relating to the production of cellulose derivatives
IPC: C08B15/06
Filed: 1937-02-01
Abstract: A primary or secondary amine of aliphatic character is brought into reaction with a cellulose sulphonate, particularly an aryl sulphonate, soluble in organic solvents until a sufficiently large proportion of amino group has been introduced to yield a product soluble in dilute acid.  The cellulose aryl sulphonate employed may be obtained by reacting an aromatic sulphonyl halide with a solution of cellulose or a cellulose derivative in aqueous alkali.  For producing cellulose derivatives soluble in at least a stoichiometric proportion of 5 per cent aqueous acetic acid, at least 0,5 amino group should be introduced for each glucose unit of the cellulose product.  Filaments, films, and other shaped articles, and coating compositions, may be obtained or prepared from the alkyl amino cellulose product.  In an example, methyl cellulose p-toluene sulphonate is dissolved in n-amylamine and the solution is allowed to stand for several days.  The resulting amyl - amino-(methyl) cellulose is precipitated with aqueous alcohol. The viscosity of the solutions of the product in dilute acetic acid may be varied by adding hydrogen peroxide.  Cellulose ether amines may also be obtained from methyl cellulose benzene sulphonate, glycol cellulose b -naphthalene sulphonate, or glycol cellulose p-toluene sulphonate, and methylamine, di-methylamine, ethylamine, propyl, butyl, or amyl amine, or a mixed amine such as methylbutylamine.  Benzylamine, ethanolamine, or 2-amino-cyclohexanol may also be used.  The amino cellulose derivatives are soluble, in the form of their salts, in water. Coating-compositions containing the amino celluloses may also contain plasticizers, thickeners, wetting agents, mildew inhibitors, adhesives, insecticides, anti-oxidants, oils, waxes, and pigments. They may be used for coating wood, paper, stone, brick, plaster, asbestos, or textile materials.  The coating-composition may be an aqueous dispersion of titanium oxide containing salicylanilide as mildew preventative, a wetting agent, a softener, and an alkylaminocellulose salt as dispersing agent.
Patent GB-233408-A (GB)
Title: Improvements in water heating furnaces
IPC: F24H1/44
Filed: 1924-02-06
Abstract: 233,408. Daechsel, F. A., and Powell, W. F. Feb. 6, 1924. Water-boiler furnaces; liquid-fuel furnaces; doors; door frames; observation devices.-In a furnace comprising inner and outer heating chambers 20, 13, a water-jacket 12 between them. water-tubes 24 in the inner heating-chamber, and flues 15, 32 connected to the chambers, the two water-heating systems are connected in parallel to the main water supply and delivery pipes. and means are provided for controlling the action of the source of heat on one of the systems to vary the temperature of the outflowing water. In the construction shown, an annular header 25, from which the tubes 24 depend, is connected in parallel with the water-jacket 12 to the water supply pipe and to the outlet pipe 61. The tubes 24 are in two concentric circles, and contain baffles or webs 53 registering with webs 54 in the header. At the top of the furnace is a circular hood 31 with a cleaning-door 36, to which is connected the flue 32 containing a damper 34. By opening the damper 34 the combustion gases are caused to pass through the annular header and the hood 31 directly to the outlet; on closing it, the gases are made, after passing the header, to descend the outer heating-chamber 13, the outlet 14 from which is surrounded bv a baffle 64 of inverted U form. At the top of the furnace is rotatably mounted a plate 45 carrying an inspection door 48, which, by rotating the plate, may be made to coincide with any one of an annular series of openings 43 in the top plate 42 of the furnace. At the bottom of the furnace is a plate 19, the removal of which allows an oil burner to be inserted.
Patent GB-579067-A (GB)
Title: Improvements in or relating to shearing and cutting-off dies
IPC: B26D3/16
Filed: 1945-02-07
Abstract: 579,067. Shear-blades. METAL TRIM, Ltd., and PENKALA, E. Feb. 7, 1945, No. 3104. [Classes 83 (ii) and 83 (iv)] An apertured shear blade is made from a blank by drilling holes 18, 14, 15, sawing on lines 19, 20, 21, 21<1>, 22, separating the parts, filing &c. the aperture surfaces then reassembling in a holder with spacer pins in the holes 18.
Patent GB-510097-A (GB)
Title: Stilbene derivatives
Filed: 1938-02-01
Abstract: 510,097. Amidines. MAY & BAKER, Ltd. EWINS, A. J., and ASHLEY, J. N. Feb. 1, 1938, No. 3132.' [Class 2 (iii)] Diamidinostilbenes are prepared by treating dicyanostilbenes with anhydrous alcoholic hydrogen chloride or hydrogen bromide, and treating the imino-ethers so obtained with ammonia or a salt thereof. The products have trypanocidal properties. An example is given in which 4:4<1>-dicyanostilbene is treated in nitrobenzene solution with methyl alcohol and dry hydrogen chloride, and the di-iminoether dihydrochloride so obtained is separated and heated with alcoholic ammonia; 4:41- diamidinostilbene is obtained. The provisional Specification refers to the production of substituted amidines by treating the imino-ethers with an amine or a salt thereof. Specification 507,565 is referred to.
Patent GB-641690-A (GB)
Title: Improvements in or relating to the regulation of gas turbine propulsion motors
IPC: F02K1/16
Filed: 1948-02-03
Abstract: 641,690. Gas turbine plant; jet propulsion plant. OESTRICH, H. Feb. 3, 1948, No. 3154. Convention date, Feb. 6, 1947. [Classes 57 and 110(iii)] [Also in Group XXIX] In a gas turbine plant, which may be used for jet propulsion, regulation to maintain the temperature of the combustion chamber constant is effected by means responsive to variations in the value B-Kp, where B is the rate of fuel supply and p the pressure-difference over the whole or a part of the air compressor. In the plant shown in Fig. 1, the fuel supply to burners 7 is regulated by means of an overflow valve 10 controlled by a speed-governor 8 with a variable setting 9. The rate of fuel flow through an orifice 15 is indicated by the movement of a piston 18 which sets a camsupport 20 under one end of a floating lever 22. The other end of the lever is positioned by a device 14 responsive to the pressuredifference over the compressor 1. Movement of the centre of the lever 22 operates a servomotor device 23, 24 to adjust the regulating cone of a propulsion nozzle 4. In a modification the valve 10 is controlled by the servomotor 23 and the speed-governor positions the regulating cone. In the plant shown in Fig. 3 a fuel supply regulator 45 is controlled directly by a speedgovernor 8, through a lever 55, and a lever 57 is turned about its pivot 60 to move the end 21 of a pressure-difference bellows 14 in accordance with the fuel supply. This movement, varied by any alteration in the length of the bellows due to pressure changes, is used in a servomotor 23, 24 to adjust the regulating cone. Movement of the cone imparts, through a cable 64. a follow-up movement to the pivot 60. The governor lever 55 has a rolling pivot on an arm 56 such that the leverage increases with increasing fuel supply. The fuel supply regulator 45 comprises a cylinder 43 with a long port 88 to which fuel is supplied by a pipe 63. This supply is divided by a piston 44, part going through a pipe 64 to the burners and the remainder returning through a pipe 49 and a pressure-regulator 110 to the fuel tank. The fuel is supplied by a centrifugal pump 29 and a gear-wheel pump 31 in series with a filter 30 between them. Fuel for idle-running passes to the burners 52 through a valve 66 and a flow-regulator 106. For slow-running, fuel passes through a valve 34 and a needle valve 36 in series and for load the valve 34 is moved to lead the fuel directly into conduit 62. The valves 66 and 34 are operated by a control lever 32 and, when that lever is moved to an over-load position, a part 61 turns a lever 62 to shift the basic position of the pivot 60. An additional burner may be provided for starting and, during starting, fuel to this and the other burners is supplied by a separately driven fuel pump. Non-return valves close when the pressure of the normal fuel supply is adequate.
Patent GB-433181-A (GB)
Title: Improvements in and relating to steam power plant
IPC: F01K7/16
Filed: 1935-01-31
Abstract: 433,181. Steam power plant. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Jan. 31, 1935, No. 3183. Convention date, Jan. 31, 1934. Addition to 429,672. [Classes 110 (iii) and 122 (iii)] In a steam power plant as described in the parent Specificatior the auxiliary turbine 4 and the pre - heaters 7, 8 are arranged ir parallel with a stage of the prime mover 2 The regulating valve 1( valves 14, 15 in the pipes 11, 12, and the valve 20 in the pipe 19 leading to the condenser are inter - connected The turbine 4 may be supplied with steam from the main through the valve 20 and cooler 9. In a modification several turbines are arranged in parallel with a stage of the prime mover and the pre-heaters are arranged in parallel with another stage.
Patent GB-546485-A (GB)
Title: Improved means for defrosting the windscreens of motor vehicles
IPC: B60S1/54
Filed: 1941-03-10
Abstract: 546,485. Motor vehicle bonnets. WOLSELEY MOTORS, Ltd., and MULLENS, H. C. R. March 10, 1941, No. 3195. [Class 79 (iii)] In order to direct a current of warm air from the engine on to the windscreen so as to prevent or remove ice &c. therefrom, the rear end of the bonnet or bonnet top can be raised by the driver by means located within the bonnet so as to leave a gap between the rear end of the bonnet and the scuttle. In the construction shown applied to a bonnet having fixed sides and a top 1 hinged at the rear end by means of links 2, 3 and provided with clamping means (not shown) at its front end, the links 2, 3 are hinged at their upper ends to a plate 6 secured to the bonnet top and at their lower ends to a plate 10 adjustable vertically on a fixed plate 12. The plate 10 carries pins 16 sliding in vertical slots 17 in the plate 12, and a screw 9 rotatable but incapable of axial movement in the plate 10 screws into a nut 11 fixed to the plate 12. Thus by unscrewing the nut the plate 10 can be raised relatively to the plate 12 and the rear end of the bonnet top 1 raised as shown in Fig. 4, so as to leave a gap between the bonnet top and the scuttle 13.
Patent GB-416457-A (GB)
Title: Improvements in or relating to variable electric condensers
IPC: H01G5/12
Filed: 1934-02-01
Abstract: 416,457. Condensers. JUDELL, K., 6, Uhlandstrasse, Charlottenburg, Berlin. Feb. 1, 1934, No. 3392. [Class 38 (ii).] A variable multiple condenser has all the units of one member, i.e. the fixed or the moving member, formed simultaneously in a mould by casting or moulding under pressure, the relatively movable members of the condenser being mechanically interconnected so that the elements of the member move in parallel planes. The example, Fig. 1, shows a pair of co-operating members each comprising two units. The elements are in the form of tapered pins 10, 11 cast in one with base plates 6, 7, co-operating with blocks 14, 15 and with corresponding holes. The members comprising the blocks 14, 15 is arranged to slide in a frame 1 on ball bearings 13, being actuated by a screw 16. The units 6, 7 which to be electrically separate are east together with a web 19 which is severed after securing in the frame. Alternatively the units 6, 7 may be cast in a die which contains the insulating mounting plates 2, 3. The frame 1 forms a screen and screens may also be fitted between the units. In the example, Fig. 3, the co-operating elements are in the form of ribs 29 and slots 35 in a block 24 and the relative motion is obtained through pivoted side stays 30, 33.
Patent GB-1236549-A (GB)
Title: Improvements in and relating to gas filters
Inventor: VANDERSTEGEN-DRAKE STAMFORD RO
IPC: B04C9/00
Filed: 1967-06-13
Abstract: 1,236,549. Gas filter; cyclone separators. PLENTY & SON Ltd. 14 May, 1968 [13 June, 1967], No. 3432/71. Divided out of 1,236,017. Headings BIT and B2P. Gas carrying entrained dust enters gas filter 2 through inlet 4 and passes to the interior of a plurality of cyclones 30, being made to undergo vortical flow by inclined walls or baffles attached to the cyclone wall. Separated dust passes from the bottom of the cyclones and collects in the bottom compartment, while the partly-cleaned gas enters the upper chamber through tube 34 to pass through filter 14, closed at its lower end, in which separation is completed.
Patent GB-840404-A (GB)
Title: Improvements in electric tunnel ovens
IPC: F27B9/06
Filed: 1958-02-03
Abstract: 840,404. Continuous tunnel kilns. RIEDHAMMER G.m.b.H., L. Feb. 3, 1958 [March 15, 1957], No. 3491/58. Class 51 (2). In a continuous tunnel kiln for firing ceramics in which a current of air traverses the tunnel in countercurrent to the wave, the rates of operation of a pressure fan at the exit end and a suction fan at the inlet end of the tunnel are jointly controlled. Additional pressure fans are provided at each end of the tunnel to prevent the tendency of hot air to escape through the end portals just below the roof.
Patent GB-1489089-A (GB)
Title: Fuel systems for gas turbine engines
IPC: F02C9/36
Filed: 1975-01-27
Abstract: 1489089 Gas turbine engine fuel systems ROLLS-ROYCE Ltd 27 Jan 1975 [25 Jan 1974] 03505/74 Heading F1G A gas turbine engine fuel system comprises two substantially similar constant-displacement fuel pumps connected in parallel upstream of a fuel control unit, a spill valve associated with each pump being controlled in accordance with the pressure drop across the control unit so that it spills substantially the entire flow of its respective pump when the pressure drop exceeds a predetermined value, the spill valves operating at different predetermined values whereby substantially the entire flow through one pump spills at a lower pressure drop than that at which substantially the entire flow through the other pump spills. The constant displacement pumps 16, 18 and their associated non-return valves 76, 78 are connected in parallel between a backing pump 12 and the fuel control unit 28, respective spill valves 44, 46 being provided to spill fuel via a spill duct 48 to the lowpressure side of the pumps 16, 18. The pressure drop HP-P across the control unit 28 is applied via ducts 62 and 66, 64, 68 to respective pistons 50, 52 to tend to open the respective spill valves 44, 46 against the action of respective springs 58, 60. Spring 60 is stronger than spring 58 so that the spill valve 44 opens before the spill valve 46 opens. When the engine is started, both pumps 16, 18 supply fuel via the control unit 28 to burners 32. Spill valve 44 begins to open when the pressure drop (HP-P) has risen to 200 psi and is fully open at 250 psi. Substantially the whole flow to the burners is now supplied by pump 18 alone. Spill valve 46 begins to open at 260 psi and is fully open at 310 psi, so that during normal operation, in which HP-P has between these two values, valve 46 is partially open to permit a degree of spill from the pump 18. If the pump 16 fails during normal operation, there is no effect on the fuel supply. If the pump 18 fails instead, the resultant decrease in HP-P reduces the opening of the spill valve 46. If there is total failure of the pump 18, spill valve 46 closes fully and the spill valve 44 begins to close to provide an output from the pump 16, HP-P then stabilizing at a value between 200 and 250 psi. Pressure switches 80, 82 indicate which of the two pumps is supplying fuel to the engine. To test the system in a preflight check, with HP-P at its normal operating value a solenoid 86 is operated to cause a valve 70 to disconnect duct 68 from duct 66 and connect it instead to a duct 74 leading to the low-pressure side of the pumps, thereby simulating a failure of the pump 18. The resultant decrease in HP-P causes the pump 16 to resume operation as before, this being indicated by pressure switch 80.
Patent GB-543818-A (GB)
Title: Windshield wiper
IPC: B60S1/38
Filed: 1941-03-17
Abstract: 543,818. Windscreen wipers. TRICO PRODUCTS CORPORATION. March 17, 1941, No. 3639. Convention date, April 6, 1940. [Class 138 (i)] One side of the edge of a windscreen wiper is roughened to scrub the surface while the other side is smooth to form a lapping face. As shown, the wiper 8, having a rough side 16 and a smooth side 17 is doubled over a core 9 by the holder 7 the edges 13 of which are flared to match the wedgelike core. The wiper may consist of a woven fabric or wire mesh to provide the rough surface and a backing of rubber, or the edges of the wiper may be moulded with roughened surfaces on one side.
Patent GB-562117-A (GB)
Title: Improvements in gas turbines
IPC: F02C5/06
Filed: 1943-03-09
Abstract: 562,117. Turbines. CARTWRIGHT, W. March 9, 1943, No. 3768. [Classes 110 (ii) and 110 (iii)] The turbine rotor has two or more parallel sets of pockets F on its periphery and serrations I around the stator. Behind each pocket are two vanes C with a scavenging port B between them, the vanes being projected radially by centrifugal force. Working fluid is admitted through a port E and compressed through a crescent-shaped space D into a pocket F, fixed by a plug H and expanded until an exhaust port N is reached. The port B scavenges the serrations. It is sealed off while passing over the inlet E by a core A.
Patent GB-113083-A (GB)
Title: Improvements in Explosives.
Inventor: SEGAY ADOLPHE
IPC: C06B31/42
Filed: 1917-03-15
Abstract: 113,083. Segay, A. Aug. 17, 1916, [Convention date]. Explosives.-Relates to explosives containing ammonium nitrate, an alkaline-earth silicide such as calcium silicide, and a self-detonating substance such as trinitrotoluene, tetranitraniline, tetranitromethylaniline, hexanitrodiphenglamine, and nitroglycerine. According to the invention, the quantity of silicide used is considerably in excess of what is required for complete combustion. An example contains ammonium nitrate 66 parts, tetranitromethylaniline 7 parts, and calcium silicide 27 parts. The explosive is compressed and wrapped in paper and paraffin.