baber/WOPTO huggingface dataset:
Patent GB-1506451-A (GB)
Title: Airfield lighting circuits
IPC: H05B37/03
Filed: 1976-01-27
Abstract: 1506451 Lamp failure alarms BRITISH AIRPORTS AUTHORITY 27 Jan 1976 [30 Jan 1975] 4130/75 Heading G4N Failure of a lamp in an airfield lighting circuit is detected by causing a signal to be transmitted along the supply circuit when a lamp fails and picking-up this signal at an alarm circuit. As shown, a 50 Hz, variable voltage, constantcurrent power source 1 supplies over a loop 2 and via transformers 4 a plurality of lamps 8. Selected lamps or groups of lamps are connected to the transformer secondary windings by signal generating and transmitting circuits 10 which each include a semi-conductor driver circuit which detects open-circuiting of its associated lamp to cause a 4 kHz signal to be transmitted to the loop 2. A 4 kHz detector circuit and alarm relay 12 detects this signal, by means of a transformer 6, to operate an alarm. Each circuit 10 may transmit an individual frequency.
Patent GB-810799-A (GB)
Title: Improvements in or relating to accounting machines
IPC: G06C21/04
Filed: 1956-07-10
Abstract: 810,799. Calculating-apparatus. BURROUGHS CORPORATION. July 10, 1956 [July 18, 1955], No. 4132/57. Divided out of 810,797. Drawings to Specification. Class 106 (1). Operation of the driving mechanism of an accounting machine with a travelling paper carriage is prevented when the carriage is in selected columnar positions and a registered total is negative. The apparatus described is completely disclosed in Specification 810,797, [Group XVI], and is used, in a banking application, to warn an operator about to enter a deposit in a " Deposit " column if a previously entered cheque has resulted in an overdraft. A further lock is described whereby, if after the entry of a deposit an account remains overdrawn, the normal automatic cycle which occurs when the carriage arrives in a " New Balance " column is prevented. Specification 709,181 also is referred to.
Patent GB-524794-A (GB)
Title: Improvements in and relating to the protection of machine parts against high temperatures
IPC: F01D5/18
Filed: 1939-02-08
Abstract: 524,794. Elastic fluid turbines. AKT.-GES. BROWN, BOVERI, & CIE. Feb. 8, 1939, No. 4133. Convention date, Feb. 8, 1938. [Class 110 (iii)] Blades having internal channels for cooling fluids allow the escape of the fluid in a way to secure that it flows over the working surface as a protective covering. Orifices b connect the channels a with open-sided channels c. The blades may be formed of sheet material. Stamped foot-flanges r are welded to the blades and are afterwards welded to the rotor. Specification 435,906 is referred to.
Patent GB-546062-A (GB)
Title: Intertube intermediate-frequency coupling systems for modulated carrier-signal receivers
IPC: H03H7/01
Filed: 1941-03-27
Abstract: 546,062. intermediate frequency filters. HAZELTINE CORPORATION. March 27, 1941, No. 4138. Convention date, April 18, 1940. [Classes 40 (iii) and 40 (v)] A band-pass intermediate-frequency transformer having variable coupling to enable the bandwidth to be adjusted to include a desired range and having its windings tuned mainly and preferably wholly by the tube and circuit capacities, has one or more anti-resonant circuits 38, 39 associated with its windings e.g. for giving a peak at f3 or a trough at f4, the tuning capacities of these circuits being more than ten times the tuning capacity of the transformer. As shown the pass band is that of a television signal, the peak at f3 corresponds to the carrier of the associated sound signal and the trough at f4 corresponds to the carrier of an interfering signal. Additional rejector circuits may be provided at 41, 42.
Patent GB-649279-A (GB)
Title: The production and use of coal extracts and solutions thereof
Inventor: DRYDEN IAN GORDON CUMMING
IPC: C04B35/532
Filed: 1948-02-12
Abstract: Carbonaceous products of low ash content are obtained by extracting a bituminous coal with a liquid aliphatic or araliphatic amine containing at least one primary amino group and having a viscosity at the extraction temperature not greater than 30 centipoises, the extraction being effected at atmospheric pressure and at any temperature up to the boiling point of the amine.  Specified amines are n- and isopropylamine, a -methylpropylamine, n-amylamine, n-dodecylamine, allylamine, monoethanolamine, ethylene diamine, propylene diamine, hexamethylene diamine, diethylene triamine, benzylamine, and b -phenylethylamine.  The extracted products may be recovered from their solution in the amine (1) by evaporation, or (2) by addition of acid, preferably after dilution of the solution with water, or (3) by addition of an organic liquid in which the extracted products are at least partly insoluble, e.g. benzene, carbon tetrachloride, chloroform or ethyl alcohol, or (4) by diluting the solution with water and adding an electrolyte, e.g. magnesium sulphate.  In method (3) above, the precipitant may be recovered by fractional distillation after the precipitate has been separated, and the residual amine, which may still contain some extracted substances, may be used for a further extraction. Instead of recovering the extracted substances from the solution in an amine, the solution may be dispersed in water.  The solutions or dispersions are useful as coating compositions, e.g. for metal, glass or ceramic materials, and for this purpose the solutions or dispersions are applied to the surface to be coated and the coating is baked at about 250-300 DEG  C.  It may be advisable to heat the surface before applying the solution or dispersion.  The coatings so obtained are hard and water-repellent, and are particularly suitable for steam condensers.  Experimental results are given.
Patent GB-913464-A (GB)
Title: Process and apparatus for treating solids in a gas stream
IPC: F26B17/14
Filed: 1959-02-05
Abstract: 913,464. Drying apparatus. RUHRCHEMIE A.G. Feb. 5, 1959 [Feb. 22, 1958], No. 4164/59. Class 34 (2). A process of contacting a finely-divided solid material with a stream of gas, which comprises passing the gas upwardly along a helical path adjacent to the inner surface of the wall of an externally heated or cooled, elongated, tubular chamber, the gas having a relatively high velocity along the helical path and a low linear velocity of flow in the axial direction of the chamber, and passing the material under gravity countercurrently to the stream of gas and substantially along the same helical path at a rate of fall which is reduced by the counter-current stream of gas. Granular material to be dried is introduced into the upper part of a jacketed tube 2 by a screwfeeder 1. The material travels downwardly in a helical flow path along guide members 3 which are rotatably mounted within the apparatus and the dried material is discharged through a valve 7. The moisture laden effluent, probably with fine particles in suspension, passes through an outlet 5 to a separator 6. The activity of the drying gas may be increased such that a fraction of the material is discharged with the effluent through the outlet 5 and passed to a " concurrent " gas flow drier of the type disclosed in Specification 826,020.
Patent GB-1022513-A (GB)
Title: Bobbins
Inventor: NESLANEY JOHN MAURICE
IPC: B65H75/14
Filed: 1964-01-31
Abstract: 1,022,513. Bobbins. CURTIS (ENGINEERS) Ltd. Dec. 8, 1964 [Jan. 31, 1964], No. 4178/64. Heading B8M. A flanged bobbin comprises a tubular body 10, the ends of which are of reduced thickness to form external shoulders against which flanges 11 abut, the ends of the body 10 then being turned back to form retaining lips 18 which are held against the respective flange by plugs 12 having a central bore 23 to accommodate a spindle. The tubular body 10 is preferably precision drawn aluminium alloy tubing and the flanges compression moulded plastics material. The plugs 12 are preferably of polypropylene and are provided with concentric inner and outer sleeves 21, 20 which may be spaced by radial spokes, Fig. 3, not shown. Apertures may be provided in the plugs 12 for the selective reception of balancing plugs.
Patent GB-1222951-A (GB)
Title: Method and apparatus for controlling the acidity of solutions
IPC: G01N33/00
Filed: 1955-02-11
Abstract: 1,222,951. Controlling acidity; determining esterase-inhibiting substances. NETHERLANDS, SECRETARY OF STATE FOR WAR. 11 Feb., 1955 [11 Feb., 1954], No. 4214/55. Heading B1X. [Also in Division G1] The acidity of a solution for example a solution in which an enzymatic reaction is taking place is controlled by contacting it with an adjustable surface of a solid substance capable of neutralizing acid. The method may be used to determine substances inhibiting the activity of esterases. To determine the amount of war gas in air, or of other inhibiting substance in a liquid sample, the air is thoroughly mixed with an aqueous solution of acetylcholine chloride containing a choline esterase preparation and phenol red, by reciprocating a plunger 47 within a barrel 1 of methyl methacrylate, so that solution is forced in and out of a chamber 6, through bores 52, to wash walls of a space 49 in contact with the air, or a drop of the liquid sample is added to the solution in chamber 6. A magnesium bar 12 is pushed rapidly into and out of the solution one or more times, by pressing a knob 20 against a spring 33. When the colour of the solution indicates a decreasing pH value with knob 20 released, this knob is rotated so that the magnesium bar is inserted just far enough to produce the same colour in chamber 6 as in a chamber 7 containing choline esterase, potassium chloride and acetic acid with a pH value of 7.1, previously adjusted by stirring with a magnesium bar. Rotation of knob 20 can be measured using scale (30) (Fig. 2 not shown). Neutralizing substances other than magnesium, e.g. cadmium, R.E. may be used. The method of acidity control may be applied to industrial as well as analytical problems, such as in the manufacture of sugar or the flocculation of colloidal gold in natural water.
Patent GB-267101-A (GB)
Title: Improvements in, or relating to, steering mechanism for motor vehicles
IPC: B62D3/02
Filed: 1927-02-15
Abstract: 267,101. Soc. Anon,. des Anciens Etablissements Panhard et Levassor. March 6, 1926, [Convention date]. Steering-gear comprises a large annular steering - wheel 1 which is without spokes and is so mounted on the vehicle that the driver can place his legs through it. The wheel or ring 1 is conected by studs 2 to a toothed annulus 3 mounted in a rotatable manner between guides 4, 5 fixed to the vehicle body, the steering-gear 11 being driven irom the annulus3 through a pinion 10. The guides 4, 5 may be formed as sectors or may be complete circles.
Patent GB-230806-A (GB)
Title: Improvements in and relating to high-pressure steam turbines
IPC: F01D5/14
Filed: 1925-02-16
Abstract: 230,806. Erste Br³nner Maschinen- Fabriks-Ges. March 14, 1924, [Conven- -ion date]. Axial-flow type. - To secure shockless expansion in full-admission disc turbines using highpressure steam, at above 30 atmospheres pressure, the cross-sectional areas of successive nozzles are related as follows : axD<1>/bxD = 0À997 cxD<2>/bxD<1> = 0À997 dxD<3>/cxD<2> = 0À997 exD<1>/dxD<3> and so on, where a - - e are the heights of the nozzle orifices in the diaphragm 1 - - 5, and D - - D<4> are the mean admission diameters.
Patent GB-1498272-A (GB)
Title: Device for holding the mouth open
IPC: A61B1/24
Filed: 1975-01-31
Abstract: 1498272 Mouth gags W SCHROER 31 Jan 1975 [14 June 1974] 4324/75 Heading A5R A mouth gag and tongue depressor comprises a pair of arc shaped trough-section shells 10, 10' connected by a resilient U- shaped stirrup 14 having flanges 12, 12' by which it joins to the shells, these flanges bulging outwardly to move the inner surface of the cheeks away from the teeth, and the centre of the stirrup having a depending tongue depressor 20. The web of the stirrup may be hinged to the flanges to provide outward biasing of the shells. In a modification the stirrup is of tubular section with apertures 23 for collecting saliva and connections 28, 30 for a suction tube 32 to remove the saliva, the connections being formed to thicked parts 27 of the shells and communicating with the interior of the stirrup. The core of the tube may contain a light line to illuminate the mouth cavity, or this line may be provided separately from the saliva tube. The gag may be made of transparent plastics or of glass fibre reinforced plastics, or of metal.
Patent GB-106981-A (GB)
Title: Improvements connected with Document Files.
IPC: B42F13/40
Filed: 1917-03-26
Abstract: 106,981. Lamson Paragon Supply Co., and Barratt, G. W. March 26, 1917. Perforations.-A punching-device for a rigidprong document file comprises a paper-holding device with two hinged leaves 1, 2, the leaf 1 having holes 5 and the leaf 2 corresponding apertures 7 so that the holder with the sheet 6 may be pushed down the filing posts 8, thus perforating the sheet. The holder may he separate from the file, as in Fig. 1, or may carry a hinged support 2<a>, 2b, adapted to engage the posts 8, or may be otherwise con. nected to the file. The leaves 1, 2 may be of paper, or of metal sheets provided with pin hinges. The apertures 7, which allow the leaf 2 to clear the posts 8 after each sheet has been perforated, may be provided with abutments 7<a>.
Patent GB-1396292-A (GB)
Title: Heat storage units
IPC: C09K5/06
Filed: 1971-02-10
Abstract: 1396292 Thermal storage heaters; heat pumps; water heaters; space heating devices J E RANDELL 10 May 1972 [10 Feb 1971 28 April 1971] 4334/71 and 11772/71 Headings F4U F4H F4A and F4V A heat storage unit comprises at least one container at least partially filled with a crystallizable hydrate of trisodium (ortho) phosphate, other than the monohydrate, preferably the dodecahydrate. The or each container may also contain water and/or one or more other crystallizable salts hydrates such as sodium sulphate decahydrate, disodium hydrogen orthophosphate dodecahydrate, sodium carbonate decahydrate or sodium chromate decahydrate. Each container may additionally contain a magnesium containing compound. Each container may be heated either internally or externally and either be open to the atmosphere or have a pressure safety valve. Means are provided for permanently maintaining at least some of the salt hydrate in each container in crystalline form, either by thermally insulating a pocket of salt hydrate from the associated heating element or by connecting a pocket of salt hydrate by a heat bridge to ambient temperature. The heat storage unit may form part of a central heating system (Figs. 1-5, 13-16), a room air conditioning and ventilating system (Fig. 6), thermal storage radiators (Figs. 7-12), hot water storage heaters (Figs. 17-21), or of a refrigeration and heat pump units (Figs. 22-32).
Patent GB-205782-A (GB)
Title: Improvements in or relating to brake controlling means for automobile and other vehicles
IPC: B60T11/04
Filed: 1923-02-14
Abstract: 205,782. Renault, L. Oct. 20, 1922, [Convention date]. Controlling-apparatus, arrangements of transmission gear in conjunction with. - Means for actuating brakes on the steering wheels of vehicles comprises a tubular shaft 1 connected by a cardan joint 2 to the usual brake cam and mounted to turn but not to slide upon an inner shaft 6<1> pivoted at 7 to a rod 9 free to turn in a socket 10 pivoted at 11 to the vehicle chassis 12. The shaft 1 is provided with an arm 4 bv which it can be turned to apply the brakes. Movement of the parts to and from the chassis is permitted by the pivotal movement of the member 10 about the point 11. An arrangement of passages is shown whereby lubricant supplied to an annular passage about the rod 9 is fed also to the pivots 7, 11.
Patent GB-201860-A (GB)
Title: Improvements in priming preventers for evaporators and like apparatus
IPC: C13B25/02
Filed: 1923-02-15
Abstract: 201,860. McNeil, J., and McNeil, C. Feb. 15, 1923. Priming, preventing. - Moistureladen vapour passing from an evaporator D rises through a conical shaft A beneath a dome F and is caused to pass under a conical baffle B between the shaft A and dome B before passing to the exit G. Moisture is deposited on the diaphragm-plate C which slopes towards the usual trapped outlet. Specification 1133/01 is referred to.
Patent GB-305819-A (GB)
Title: Improvements in or relating to sound boxes of gramophones and like sound-reproducingmachines
IPC: H04R7/04
Filed: 1928-02-13
Abstract: 305,819. Cullum, H. J., Ashton, V. H., and Tye, H. Feb. 13, 1928. Sound-boxes, connecting to tone-arms.-A sound-box for a gramophone or like machine has secured to the casing, at the sound-outlet, a hollow open-ended member b, in which is located a ring or sleeve c of rubber or the like, adapted to engage over the tone-arm. The part c is caused to grip the tone-arm by means such as a curved springy plate d, arranged in a recess in the tube b, and engaged by one or more screws e passing through the tube. By this means the sound-box may be secured to tonearms of different sizes. Two or more plates such as d may be provided.
Patent GB-196433-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02M1/00
Filed: 1922-02-15
Abstract: 196,433. Wolf & Co., Ltd., S., and Pitt, W. Feb. 15, 1922. Spray carburettors. - To prevent fuel ejection losses in, flame ejection from, and to silence the air inlet to, carburettors, the air inlet to the choke tube 3, Fig. 1, is provided with a hollow casing 1 closed at the side opposite to the choke tube, and provided with inwardly-tapering air passages 4, 5 arranged with their axes substantially parallel to the closed side, so that the air currents drawn in through the passages mutually oppose one another and tend to create pressure in the centre of the casing. In the modification shown in Fig. 3, the casing is circular and consists of a fixed part 18 provided with air inlet ports 19 and carrying a dished plate 15, and a rotatable part 12 provided with ports 13 adapted to coact with the ports 19 and carrying a dished plate 14.
Patent GB-252243-A (GB)
Title: Improvements in steam safety valves
IPC: F16K17/10
Filed: 1925-02-19
Abstract: 252,243. Cockburns, Ltd., and Mac- Nicoll, D. Feb. 19, 1925. Closure members, double beats ; regulating rate of flow by throttling devices.-A safety valve particularly adapted for use with very high pressures has the valve seat 1 formed with a coned spigot 2 disposed in register with a recess 3 in the valvemember 4 within the area surrounded by the seating surfaces 5, 7. The valve member has a spigot 6 which enters the valve opening and is arranged so that when the valve is open the gap between the seating faces is a multiple of that between the spigots.
Patent GB-1247825-A (GB)
Title: High-speed printer
IPC: B41J9/12
Filed: 1970-01-30
Abstract: 1,247,825. Selective printing. NATIONAL CASH REGISTER CO. 30 Jan., 1970 [11 Feb., 1969], No. 4608/70. Heading B6F. A rotatable type drum 10 is provided with columns 11, 12 of type each having blank areas adjacent areas of the adjacent columns bearing characters, and hammers 22, cooperating with the drum, each hammer cooperating with two adjacent columns, and formed with concave surfaces to allow for pivotal movement of the hammers when they strike a character caused by the off-centre impact. The hammers are solenoid operated and suspended on leaf springs (26, Fig. 5).
Patent GB-363889-A (GB)
Title: Improvements in means for automatically stopping internal combustion engines when the flow of oil in the lubrication system ceases
IPC: F02M1/08
Filed: 1931-02-13
Abstract: 363,889. Spray carburetters. WINTER, K. M., (trading as WINTER, HIMMELKRON NAHMASCHINEN FAHRRAD-REPAR., ERSATZTEILE), Himmelkron, Germany. Feb. 13, 1931, No. 4617. Convention date, Feb. 13, 1930. [Class 7 (iii).] The air supply to the carburetter is shut off if the circulation of lubricating oil fails or works improperly, the device also serving to provide a supply of rich mixture at starting. A disc b is mounted to rotate with the air throttle e and is formed with a vane n which operates in a sector o lying within the circuit f, l of the lubricating system. If the oil is too thin or not circulating properly, the vane n returns to the position shown in dotted lines so as to stop the engine. At starting, the oil is cold and thick and delays the opening of the throttle, and a rich mixture is drawn into the engine.
Patent GB-1357245-A (GB)
Title: Press especially suitable for straightening metal workpieces
IPC: B21D3/10
Filed: 1972-02-02
Abstract: 1357245 Presses REDGRAVE DEAN & CO Ltd 31 Jan 1973 [2 Feb 1972] 4776/72 Heading B3E [Also in Division B5] A straightening press comprises a ram member 13 mounted on the press frame 4 so as to be movable both towards bed 5 of the press and transversely thereof. The ram member 13 forms the piston of an hydraulic cylinder 12 mounted on a shoe 10 which can be reciprocated along the frame by a chain drive. The bed comprises a pair of shaped rails 6, 6. The ram member engages a workpiece at a point between the rails. Alternatively the bed may comprise a flat plate having structurally separate supports for the workpiece. Tools may be threaded in bores in the piston.
Patent GB-121683-A (GB)
Title: Improvements in Visual Alarm Apparatus for Detecting Submarines.
Inventor: HIRAMOTO SOTARO
IPC: F41H11/05
Filed: 1918-03-19
Abstract: 121,683. Hiramoto, S. March 19, 1918. Buoy signals; pyrotechnic signals; signalling proximity of vessels.-A device for detecting submarines, of the type in which a casing moored under water is adapted to rise to the surface on being struck by a submarine and emit smoke or light, comprises a thin metal casing 1 divided into three compartments. The lowest contains carbon and zinc electrodes 13, 14 and ammonium chloride 12 or other chemical confined between porous partitions 10, 11 and adapted on admission of sea water to form an electric cell to fire an explosive charge 2 in the middle compartment. The charge 2 is only of sufficient strength to burst the casing 1 and liberate a float 3 which rises to the surface carrying the material 4 for emitting light or smoke. A suitable material is gunpowder and cotton, well mixed, together with petroleum heavy oil or -the nitrate or sulphate of barium, magnesium, or strontium, compressed into a block and secured by wire netting 6. An igniting-fuse 7 is fired by the explosion. Glass horns 17 are fractured by impact and admit the sea water to the lowest compartment.