baber/WOPTO huggingface dataset:
Patent GB-857782-A (GB)
Title: Improvements in aircraft auxiliary installations
Inventor: STONE DENIS
IPC: F02C7/32
Filed: 1956-04-04
Abstract: 857,782. Gas-turbine plant. BRITISH THOMSON-HOUSTON CO. Ltd. April 4, 1957 [April 4, 1956], No. 10318/56. Class 110 (3). An auxiliary power installation for aircraft having a main gas-turbine power plant comprises a gas-turbine having a plurality of separate banks of inlet nozzles, an auxiliary compressor driven by the gas-turbine for supplying air from the atmosphere to a combustion chamber connected to one of the banks of the nozzles, means for controlling the fuel supply to this combustion chamber in accordance with the speed of the turbine, means for supplying air bled from the main engine compressor to one or more additional combustion chambers connected to the remaining banks of nozzles, means for controlling the fuel supply to the additional combustion chambers in accordance with the turbine inlet tempera-. ture and pressure control means operated by a speed-sensitive device to control the air supply. to the additional combustion chambers. Air from an auxiliary compressor 1 is fed through a combustion chamber 2 to one bank of nozzles of a gas turbine 3 which drives the aircraft auxiliaries as well as the compressor 1. A tapping from the outlet of the main engine compressor 4 is arranged to feed air to other banks of nozzles of the auxiliary turbine 3 through one or more combustion chambers 5. At ground level, when the main engines are not operating, the axuiliary compressor outlet is connected through the valve A to the combustion chamber 2, valves B and C being closed. When the altitude increases, the power of the turbine 3 is maintained by operating valve A to shut off the connection to the combustion chamber 2 and to connect the outlet of the compressor 1 to atmosphere. The valves B and C are opened so that the combustion chambers 2, 5 are supplied from the main engine compressor 4. In a modification, the valves A and B are dispensed with, in which case the compressor 1 always supplies air to the combustion chamber 2, and, at altitude, the main compressor 4 supplies air to the combustion chambers 5. Means controlled by the speed of the turbine are provided for supplying fuel to the chamber 2 and in accordance with the turbine inlet temperature to the chamber 5. Valve means operated by a speed-sensitive device are provided for regulating the supply of bleed air from the compressor 4 to the combustion chambers 5.
Patent GB-1535139-A (GB)
Title: Resistance materials
IPC: H01C7/02
Filed: 1977-03-11
Abstract: 1535139 Resistance material PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd 11 March 1977 [15 March 1976] 10396/77 Heading C1M A resistance material comprises a mixture of a binder e.g. a low melting point glass and a resistance-determining component which is a metal rhodate having a composition defined by the formula M 3 Rh 7 O 15 , wherein M is a metal. M may be Pb or Sr. The material may also contain a component having a positive temperature coefficient, e.g. a compound of the formula M 2 <SP>1</SP>M 2 <SP>11</SP>O 6  -7  wherein M' is Pb and M" is RuO 5  or Ir, a metal powder or a metal oxide, the specific Examples describe materials formed from mixtures containing glass and: Pb 3 Rh 7 O 15  and Ag (I, II); Pb 3 Rh 7 O 15  and Pb 2 Ru 7 O 7  (III to VI) which are applied to alumina substrates.
Patent GB-948128-A (GB)
Title: Combustion apparatus for jet-propulsion engines, gas turbines, or other prime movers
Inventor: JACKSON SQUIRE RONALD
IPC: F23R3/04
Filed: 1959-03-26
Abstract: 948,128. Gas turbine combustion chambers. JOSEPH LUCAS (INDUSTRIES) Ltd. March 24, 1960 [March 26, 1959], No. 10508/59. Heading F1L. Combustion apparatus for jet propulsion engines and other prime movers comprises two concentrically arranged annular combustion chambers having a common annular outlet, an air jacket arranged surrounding both chambers and providing a common annular air inlet thereto, and vanes fixed within the inlet for directing air to the combustion chambers, the vanes being arranged to support two concentric annular fuel supply manifolds each carrying a number of angularly spaced burners and a nose piece itself serving to support the combustion chambers within the air jacket. As shown two concentric combustion chambers 23, 24, surrounded by an air jacket 10, are supported at the common outlet 26 by a pair of sheet metal rings 39 which are supported in complementary annular grooves 40 in the air jacket 10. In the inlet end of the air jacket are vanes 11 formed from a continuous strip of metal 12. The strip 12 is supported by axially extending vanes 15, 16. Secured to the vanes are annularly disposed bosses 17 to which are attached either bridge pieces 18 supporting fuel manifolds 19, 20, or the nose piece 30, which has air inlet openings 33 shaped to direct primary air to the swirlers 34 surrounding burners 22 arranged round the manifolds 15, 20. The nose piece 30 forms with the adjacent walls of the combustion chamber an annular air duct 25 through which secondary air passes via apertures 31 into the combustion chamber. Secondary air also passes from two other annular air passages, defined by the air jacket and combustion chamber walls, via apertures 32 into the combustion chambers. Secured within the nose piece are radial tubes 37 which are aligned with radial tubes 36 secured to combustion chamber extensions 35. A pin 38 passing through the tubes 36, 37 secures the combustion chamber to the nose piece. The air jacket 10 is formed in two parts, so that when the inlet end is disconnected the combustion chambers 23, 24, complete with fuel manifolds 19, 20 and the nose piece 30 are removed.
Patent GB-779303-A (GB)
Title: Diagnostic reagent
Inventor: JR ERNEST CLARENCE ADAMS
IPC: G01N31/22
Filed: 1955-04-12
Abstract: A diagnostic composition for oral administration to determine gastric acidity comprises a cation exchange resin complexed with the dye 2,6 - diamino - 3 - phenylazopyridine; the dye is liberated when the gastric acids have a pH below 4, being subsequently excreted in the urine.  A pad may be moistened with the urine to be tested, and a tablet containing sulphosalicylic acid (or citric, tartaric, or maleic acid), sodium bicarbonate, and boric acid placed on the pad, followed by water; a red coloration indicates presence of the dye. Preferably the cation exchange resin is of the cross-linked polyacrylic, polycarboxylic acid type.  Reference has been directed by the Comptroller to Specification 728,383.
Patent GB-215356-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1924-04-29
Abstract: 215,356. Lovekin, L. D. April 30, 1923, [Convention date]. Surface condensers. - The cooling-tubes are divided into two groups, an upper group C in the form of a broad and comparatively shallow band, having sufficient surface to condense the whole of the steam, entering through the inlst A', and a lower smaller group C<1> having a total surface less than one half that of the upper group and somewhat in excess of that required for the cooling of the incondensible gases which are withdrawn through a chamber F in the centre of the lower group. A plate D prevents condensate from the upper group dripping on to the lower group, and projections d<1> on the plate prevent the condensate falling as a curtain. The cooling water may be passed first through the lower group and then through the upper, and to prevent restriction of the flow, supplementary large pipes are arranged in the lower part of the condenser either inside or outside the casing in parallel with the lower group. The upper group may be fan-shaped in cross-section, and the lower group arranged in a depending narrow portion of the casing. The tubes may be arranged in a cylindrical casing, divided by an inclined baffle. Specification 114,140 is referred to.
Patent GB-105775-A (GB)
IPC: C07B45/02
Abstract: 105,775. Leitch, J. W., and Lankshear, F. R. March 22, 1916. Batch-mixers with circulating devices. - In apparatus for nitra. tion or sulphonation, comprising a vat or tank fitted with an agitator D and cooling-pipes, the cooling pipes are fitted with ribs or gill; to increase the cooling surface. In the arrangement shown, an open inner tube C extends nearly to the bottom of an outer closed tube B the cooling medium flowing into the inner tube and out through the annular space. The tubes may be fitted to a lid a, and are preferably of cast iron, but may be of steel or other material fitted with ribbed or gilled cast-iron sleeves. The agitator may be arranged with. in a tubular casing K, and a second set of blades F may be arranged ir the upper part of the vessel.
Patent GB-217700-A (GB)
Title: Improvements in or relating to steam generators
IPC: F01K3/26
Filed: 1923-04-18
Abstract: 217,700. Ruths, J. K., (known as Ruths, J.). April 18, 1923. Batteries; heating by direct contact of steam. -A number of separately fired coiled-tube boilers a are so connected to a heat-insulated steam and water chamber c by pipes e, h that water passes from the chamber into the boilers, and the steam generated in the boilers passes into direct contact with the water in the chamber. Steam is taken from the chamber through a pipe k. A circulation pump f is placed in the pipe e.
Patent GB-400586-A (GB)
Title: Improvements in processes for heat-treating metals
IPC: C21D1/34
Filed: 1932-04-13
Abstract: 400,586. Metal-heating furnaces. BROWNSDON, H. W., 43, St. Agnes Road, Moseley, Birmingham, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. April 13, 1932, No. 10639. [Class 51 (ii).] In the heat-treatment of metals, e.g. brass or copper strip, the strip 1 is fed by rollers 2 through an opening 3 in the furnace wall through a refractory tube 4 filled with heatconducting material such as graphite and heated bv a flue 11. In the zone 8 which is hot from a previous treatment the strip is preheated, in the zone 9 it is heated up to the required temperature and in the zone 10 it is cooled before it passes out through the opening 6. The next strip is passed through the tube 4 in the opposite direction.
Patent GB-1335526-A (GB)
Title: Support device employing a fluid film
IPC: F16C32/06
Filed: 1972-03-08
Abstract: 1335526 Fluid film bearing CENTRE D'- ETUDES ET DE RECHERCHES DE LA MACHINE-OUTIL 8 March 1972 [29 March 1971] 10693/72 Heading F2A A fluid bearing assembly for supporting a body 1 on a film 3 of pressurized fluid has a member with a bearing surface and a cavity 9 therein, the cavity having a surface inclined to the perpendicular to the bearing surface there being means for supplying fluid to a part of the cavity remote from the surface, and a restrictor element 10 located in the cavity being movable in the direction perpendicular to the bearing surface, the element having a surface 11 conforming to that of the cavity. The element is movably connected to the bearing member either by a screw (17) with shims (15, Fig. 1, not shown) located between the member and element, or by a flexible diaphragm 20. The diaphragm is arranged to counteract the variation in the pressure of the film. A fluid chamber 22 may be provided on one side of the diaphragm to which fluid may be fed for adjusting the position of the element. The fluid may be supplied to the chamber via a restrictor from the main fluid supply or from the fluid film. The body may be provided with two opposed bearing surfaces in each of which is a cavity with a common restrictor element.
Patent GB-1247818-A (GB)
Title: New naphthoxazole derivatives
IPC: C07D263/64
Filed: 1970-03-05
Abstract: 1,247,818. Treating textiles. CIBA-GEIGY A.G. 5 March, 1970 [6 March, 1969, No. 10728/70. Heading D1P. [Also in Divisions C2 and C3] Textiles, e.g. polyesters or polyamides are optically brightened by treatment with or in corporation of a compound of formula I where U is a 4, 4'-diphenyl radical, U 1  and U 2  denote naphthalene radicals fused to the oxazole ring and where up to 4 positions may be optionally substituted by optionally substituted alkyl groups, halogen atoms or optionally functionally modified sulphonic acid groups and up to 2 positions may be substituted by optionally substituted phenyl groups, phenyl alkyl groups, -SO 2 -Ph, CN or optionally functionally modified carboxyl groups. In examples (1) polyterephthalic acid ethylene glycol ester and (2) a hexamethylenediamine adipate polyamide are mixed with a compound I before being spun into fibres. Fabrics may be impregnated with aqueous solutions of I and then dried.
Patent GB-381868-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03G3/26
Filed: 1932-04-15
Abstract: 381,868. Valve amplifying and detecting circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Barden, W. S. ; 289, Vanderbilt Avenue, Stapleton, Staten Island, New York, U.S.A.) April 15, 1932, No. 10880. Convention date, April 15, 1931. [Class 40 (v).] To prevent undue background noise in an automatic gain-controlled radio receiver, the higher audio-frequency signals are byepassed when the received signal is weak or absent. The gain control system may comprise a rectifying-valve 10 connected in parallel with the signal detector 5, the plate resistance 11 in the rectifier circuit being arranged to vary the bias on the radio frequency valve or valves 2 by means of the lead 12. The detector output transformer M<11> is shunted by a valve 13 in series with a condenser 15 large enough to byepass high audio-frequencies when the internal resistance of the valve 13 is low. The grid of the valve 13 is connected to the gainregulating lead 12 so that the valve resistance is low when the received signal is weak or absent. In such circumstances therefore, the background noise, which consists largely of high audio frequencies, is greatly reduced. The condenser 15 is shunted by an audiofrequency choke-coil 16 to enable direct current to pass to the plate of the valve 13.
Patent GB-563746-A (GB)
Title: Improvements in anti-acid compositions
IPC: A61K33/06
Filed: 1942-08-05
Abstract: Anti-acid compositions comprise mixtures of calcium caseinate and calcium carbonate, e.g. in the proportions of 5 parts caseinate to 1 part carbonate.  This mixture may be obtained by reacting excess of calcium carbonate with casein.  Aluminium hydroxide, magnesium silicate, kaolin, charcoal, pectin may be added and the mixture may be in the form of a powder or tablet.  The Specification as open to inspection under Sect. 91 mentions admixtures of strontium and magnesium caseinates with calcium strontium, magnesium and bismuth carbonates.  This matter does not appear in the Specification as accepted.
Patent GB-473617-A (GB)
Title: Method of welding stay bolts in fire-boxes
IPC: B23K5/00
Filed: 1936-04-16
Abstract: 473,617. Making steam generators. POPP, E. April 16, 1936, No. 10982. Convention date, April 17, 1935. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In a process of fusion welding stay bolts e in the fire boxes of locomotives and the like, both of which consist predominantly of copper, the surface heat expansion of the wall during welding of the stay bolts is prevented by first welding, riveting or otherwise joining at a<1>, b<1>, the side sheets d respectively to the tube wall a and door wall b prior to welding of the stay bolts, which is then effected successively in successive rows. The bolts are welded in turn in successive vertical rows, successive rows being welded in opposite directions. It is stated that as great as possible a portion of the compressive and shrinkage stresses set up in the wall material during welding and subsequent cooling of the stay bolts is thus removed by plastic deformation and the residual stresses are thus kept at a minimum.
Patent GB-998430-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D65/18
Filed: 1963-03-20
Abstract: 998,430. Hydraulic disc brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as A. TEVES MASCHINEN-UND KOMM.-GES.]. March 20, 1963 [May 15, 1962], No. 11036/63. Headings F2E and F2F. To provide an equal balanced thrust on identical brake pads 5 in a spot-type disc brake having opposed cylinders 3, 4, of unequal cross-section, the brake-engaging thrust of a single piston 9<SP>1</SP> in the larger cylinder is matched by a resultant step-up in thrust of a two-part compound piston 9, 10, arranged in the smaller cylinder 3, and/or by a pressure intensifier in the fluid pressure line thereto. On brake application, the fluid pressure fed to a working chamber 7 of the smaller cylinder 3 acts upon the outer piston 9 and additionally communicates through a port 19, therein, with ,an inner working chamber 16 to act between the inner piston 10 and an end wall of the outer piston 9, thereby amplifying the resultant thrust. In Fig. 2 (not shown), the small cylinder communicates with a lateral cylinder containing a free stepped piston constituting a pressure intensifier. A valve member closes an axial passage in the piston against excess pressure in the cylinder.
Patent GB-559892-A (GB)
Title: Improvements in or relating to the aeration of liquid containing fibres or other floatable matter
IPC: B03D1/02
Filed: 1942-08-07
Abstract: 559,892. Aerating liquids. WATFORD ENGINEERING WORKS, Ltd., and PARAMOR, J. Aug. 7, 1942, No. 11077. [Class 111 ] [Also in Groups VI and VIII] In the aeration of liquids containing fibres or other floatable matter, such as the waste water of cellulose, paper and wood-grinding mills, the liquid and air are admitted respectively through tangentiallyarranged valve-controlled pipes 16, 20 below the flared mouth 28 of an outlet tube 24 extending through the base of the aeration tank 10. A perforated plate 14 divides the air into fine streams. Further air may be drawn in through the central aperture 52 of a funnel-shaped tap plate 50, which may carry a funnel 54 for adding a neutralizing agent. As shown, the tube 24 is connected to the lower collecting tank 32 of a flotation separation apparatus and the pipe 18 is connected to a junction piece 40, having an inlet 38 for liquid and valve-controlled pipes 46, 48 leading to the top, and the liquid space in the upper tank 36. The pipe 46 is used for reversing the flow for washing-out purposes and the pipe 48 for filling the tank 32 at starting, the valves 42, 44 being closed in normal operation. Alternatively, the air tube 20 may be connected directly, or by way of a blower, to a vacuum-producing device, such as a rotary vacuum pump, connected to the top of the tank 36 for supplying warm air, a valve being provided in the pipe line for admitting extra air.
Patent GB-650489-A (GB)
Title: Improvements in apparatus for the magnetic recording and reproducing of sound by means of a travelling tape or wire
IPC: G11B15/60
Filed: 1948-04-22
Abstract: 650,489. Magnetic recording apparatus. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., DUFFELL, H. F., and GRIFFITHS, R. V. L. April 22, 1948, No. 11113. [Class 40 (ii)] In an apparatus for the magnetic recording of sound, means are provided for lifting the tape 10 out of contact with any or all of the heads 1-3 not in use, comprising arms 21-24 operated by levers 31-34 and cams 41-44, respectively, the latter being mounted on a shaft 26 coupled to a control shaft 17 and knob 15 by pinions 20 and 25. The ends 11-14 of the arms 21-24, respectively, are provided with recesses which serve to guide the tape 10 along the centres of the magnetic cores of the heads 1-3. The shaft 26 is coupled to a switch 16 for controlling the circuits of the heads 1-3, and a ball clicker is provided to retain the shaft 26 in one of five positions A-E, Fig. 4 (not shown). In the " recording " position " A " the arm 24 holds the tape 10 out of contact with the reproducing head 3, so that contact is made only with the erazing head 1 and recording head 2. In the other extreme position, "E," for reproducing, the arms 21 and 22 hold the tape 10 away from the heads 1 and 2, and contact is made only with head 3. In the centre position "C," the tape 10 is held away from all the heads 1-3, and the switch 16 operates the rewinding motor. Positions " B " and " D " are " off positions, in which no circuits are completed and tape 10 is held away from all of the heads 1-3. Specification 650,488, describing the mounting of the heads, is referred to.
Patent GB-447464-A (GB)
Title: Improvements in internally heated steam boilers or water heaters
IPC: F22B13/02
Filed: 1934-10-13
Abstract: 447,464. Water-tube steam boilers and water heaters. CLARKSON THIMBLE TUBE BOILER CO., Ltd., and FOUNTAIN, H. J., 613, Australia House, Strand, London. Oct. 13, 1934, No. 11191/36. Divided out of 447,115. [Class 123 (ii)] Internally - h e a t e d steam boilers or water heaters have an annula: water chamber A witl thimbles or loops B extending inwards into a central gas passage C and thimbles or loops D extending outwards into a surrounding annular passage E the central and annular passages having a com mon inlet C<1> and outlet I for the heating gases which may be combustion products or waste heat gases. The boiler may be connected to ar independently fired boiler unit in a forced circulation system and have a circulator coil b leading to the steam space of such boiler. The inner shell A<1> of the water chamber may be unbolted from the outer shell and raised or lowered to permit access to the thimbles. Another embodiment provides a base chamber for fuel burning or receiving waste gases and the outer annular passage is connected therewith and with the outlet flue by external conduits.
Patent GB-551697-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/62
Filed: 1941-09-02
Abstract: 551,697. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., COMYN, F. E., and FRYDMAN, E. Sept. 2, 1941, No. 11193. [Class 40 (iv)] In a small private automatic exchange of the kind described in Specifications 389,867 and 529,169, the line relays R of privileged subscribers are connected in series with a common differential relay EF, which when operated by the actuation of an earthing key at the substation causes the connection of the line to an outgoing junction. Finderconnector links LFS, CS are provided for setting up local calls, while the junctions terminate in finders EFS. The operation of relay EF connects up relay SA which opens the start circuit for the finders LFS and disconnects the line relays of other subscribers, that of the calling subscriber being transferred by a slow-operating relay SC through relay SE which pulls up when the key is released and makes a start circuit for an allotted finder EFS. Relays SE, SA, SC are released by the operation of cut-off relay K. If a local link has already been taken in use when 'the earthing key is actuated, a differential relay OG brings about the release of the link and of cut-off relay K. By actuating his key again, the privileged subscriber may operate a differential relay TC in order to hold the junction while setting up a local call over leads 13, 14 in the manner described in Specification 389,867. On an incoming call, circuit changes occur which cause the finder EFS to hunt for an answering subscriber's line when he removes his receiver. Such subscribers are provided with an earthing key to enable them to transfer calls if necessary, as mentioned above, but they can only make outgoing calls if their lines are connected to the common relay EF. When all junctions are busy, relay SC applies busy tone from lead 12.