baber/WOPTO huggingface dataset:
Patent GB-772639-A (GB)
Title: Ultra short range altimeter system
Inventor: PIERCE ROGER JOSEPH
IPC: G01S19/17
Filed: 1955-04-18
Abstract: 772,639. Radar; phase detectors. COLLINS RADIO CO. April 18, 1955, No. 11135/55. Classes 40(5) and 40(7) In a low altitude radio altimeter for aircraft the transmitter amplitude modulation signal and detected echo signal of frequency f.e.g. 25 kc/s, are respectively multiplied in frequency to (n-1)f and nf in frequency multipliers 17, 16, so that the difference frequency taken from a mixer 18 is of same frequency f, e.g. 25 kc/s, but phase difference i.e. n times that between the transmitted and detected signals relative to the transmitted modulating frequency. This difference frequency f is then beat in a phase detector 20 with the transmitted modulating frequency f to produce a D.C. output dependent on n times the original phase difference. The D.C. output at an altitude less than 100 feet is so small that a normally operated flag 22 is released to bring into circuit an indicate 25 energised by a similar phase difference amplifying a system comprising a frequency multiplier 27 multiplying the frequency f the input to the first phase detector 20 by n and combining it in a mixer 28 with the input at frequency (n-1) f to the first mixer 18, to derive again the frequency f from a filter 22 and in a phase detector 30 by recombining this frequency f, e.g. 25 kc/s, with the modulating frequency f to derive a D.C. output dependent on n<SP>2</SP>, e.g. 100, times the original phase difference. At altitudes below 100 feet contacts 23 are bridged by the flag 22 and the output of phase detector 30 acts on a pivoted aircraft indicia vertically movable over a scale, calibrated in feet in a vertical slot in the face of the indicator 25.
Patent GB-352469-A (GB)
Title: Improvements in or relating to impulse transmitters for use in telephone or like systems
IPC: H04M1/34
Filed: 1930-04-08
Abstract: 352,469. Impulse transmitters. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and SMITH, S. R., Rock House, Old Swan, both in Liverpool. April 8, 1930, No. 11206. Addition to 234,036, [Class 40 (iv), Telephones &c.]. [Class 40 (iv).] In the impulse transmitter described in the parent Specification wherein the mechanism is mounted in a cylindrical casing having a flat back, the shape of the casing is modified to facilitate mounting in a circular recess of smaller diameter than the normal diameter of the dial. Moreover, the member which moves the impulse springs out of range of the impulse cam at the end of impulsing, is modified in order that two or more operations of the cam may be rendered ineffective. As shown, the base of the dial switch has a cylindrical portion 4 eccentric with respect to a ledge 3 on which the finger stop plate 7 is mounted, the stop plate comprising projections 15, 6, 19 which respectively form a bearing for the shaft 14 of the impulse cam, a stop for arresting the moving parts of the dial switch when restored to normal and a stop for engaging the projection 21 of the driving pawl. The. driving gear, and the impulsing equipment are arranged as described in the parent Specification. The numeral plate is secured in position by a spring 23 which is secured in the centre of the dial by a radial limb and has limbs 24, 25 provided with upturned portions 42, 43 for engaging the number plate at diametrically opposite points. A single stamping 26 carries the off-normal and impulsing springs and has two limbs 28, 29 provided with pins for engaging holes in the walls of a recessed support, e.g. a recess in a telephone instrument. The transmitter may then be secured by a single screw which passes through the hole 31. Alternatively the dial switch may be supported by screws passing through holes 50, 51 in the ledge 3. By arranging the cylindrical portion, 4 of the base eccentric with respect to the ledge 3, impulsing and off-normal springs of greater length may be employed. The cam-shaped arm 39, Fig. 3, is lengthened in comparison with that shown in the parent Specification and additional teeth are provided on the wheel 12 in order that the impulse springs may be rendered ineffective for an additional number of half revolutions of the impulse cam. The size of the fingerholes for a given diameter of fingerplate is also reduced. Specifications 226,152, 237,290, and 252,674, [all in Class 40 (iv), Telephones &c.], are referred to.
Patent GB-1322304-A (GB)
Title: Hatch cover
IPC: B63B19/197
Filed: 1972-03-10
Abstract: 1322304 Hatch covers ALGOSHIP INTERNATIONAL Ltd 10 March 1972 [13 March 1971] 11235/72 Heading B7S Apparatus for covering a hatchway on e.g. a ship or barge comprises a pair of hinged panels 5a, 5b. Panel 5a is pivoted to a deck bracket 21 by means of hinge brackets 11, which extend outwardly and downwardly, and links 23, 30 which are pivoted to panel 5a and bracket 21 respectively. An hydraulic jack 18 extends between the interconnection of links 23, 30 and bracket 21 to effect opening and closing of the panels which is assisted by rollers 35, 38 on panel 5b which rim on rails on the coaming 8. The assembly 11, 18, 23, 30 or 11, 18, 21, 23 and 30 may be readily detachable from the hatchway to enable it to operate several hatchcovers.
Patent GB-989994-A (GB)
Title: Method of making a ceramic to metal seal
IPC: C04B37/02
Filed: 1963-03-21
Abstract: A ceramic-to-metal seal is made by heating tantalum or tantalum alloy in contact with a body of ceramic containing at least 10% mol. of stabilized zirconia, i.e. zirconia to which another oxide or other oxides, such as those of calcium or magnesium, have been added to achieve a stable cubic crystalline structure, to a temperature of at least 2200 DEG  K. in an inert atmosphere.  The ceramic may contain about 10.5 % mol. of lime, up to 23 % mol. or from 75-90 % mol. of thoria; or may consist of binary or ternary mixtures of lime (more than 10 % mol.), zirconia (20-less than 90 % mol.), and the balance, if any, beryllia; magnesia (up to 10 % mol.), beryllia (10-90 % mol.), and zirconia (10-90 % mol.); or beryllia (up to 65 % mol.), ceria (not less than 15 % mol.) and zirconia (20-85 % mol.). Tantalum alloys include those with tungsten, rhenium, niobium or molybdenum. The inert atmosphere may be provided by argon, helium or other noble gas, or by a vacuum.  In an example, the ceramic employed contains the following constituents in mol. percentages: calcia 10.5, silica 1.28, titania 0.5, hematite 0.1, hafnia 1.02, alumina 0.7, and zirconia 85.9.
Patent GB-739980-A (GB)
Title: Friction shock absorbing mechanisms for railway draft riggings
IPC: B61G9/10
Filed: 1954-04-20
Abstract: 739,980. Rubber springs; combined draft and buffing gear. MINER, Inc., W. H. April 20, 1954 [May 4, 1953; March 25, 1954], No. 11312/54. Classes 103 (5) and 108 (3). A railway draft gear comprises a column of resilient units D engaged by pressure transmitting means B, C, E, within top and bottom guides 16 (Fig. 8), and side guides 18 (Fig. 6), each unit D comprising a pair of plates 30, 31 to which is bonded a mass 32 of rubber, means 36, 37 for keeping the units centred on the longitudinal axis of the gear, and means 39 engaging the units and guides for preventing the column from being moved laterally under load. The arrangement is such that the rubber is loaded in compression only, and molecular movement only of the rubber occurs, the movement being outwardly from the axis of the column to flow into peripheral spaces 33. The pressure transmitting means comprises a loadreceiving wedge B which acts on three V- shaped, cross-section wedges C, having surfaces 27 which coact frictionally with corresponding tapered surfaces 22 of an outer housing A. The wedges C act through a member E on the first unit D. The means 36, 37 comprise projections and seats in the rubber which engage corresponding seats and projections in the plates 30, 31. Projections in the plate 30 at the extreme left, engage recesses in the member E, and recesses in the plate 31 to the extreme right, engage projections in a backing member H. The guide means 39 comprises flanges 39, 41, 42 and 43, on spacing and end members E, F, G and H. The flange 43 has apertures 46 which can be aligned with apertures 21 in the housing A. Pins 47 can then be inserted to retain the spring in a loaded position. An end plate 15 of the housing A can then be assembled as shown in Fig. 8.
Patent GB-331920-A (GB)
Title: Improvements connected with the manufacture of tubes of paper or like material
IPC: B31C1/08
Filed: 1929-04-12
Abstract: 331,920. Taylor, E. Z. April 12, 1929. Paper and like tubes.-In a machine, particularly of the kind described in Specification 331,919, for forming paper &c. tubes, the paper web A is passed through rollers 40, 41 one or both of which is provided with projecting parts 42 as shown for crushing the paper at points 44 in such a manner that the ends of the tube blanks, formed by severing the web at these points at a later stage, are tapered to a comparatively thin edge to avoid unevenness in the surfaces of the finished tubes. The said rollers are located between the feed roll and the tube-forming mandrel, and are driven in synchronism with the severing mechanism at a speed dependent upon the length of blank desired.
Patent GB-1198653-A (GB)
Title: Improvements in or relating to Driving Transmissions for the Front and Rear Wheels of a Vehicle.
Inventor: DAVEY JOSEPH
IPC: B60K17/344
Filed: 1967-03-10
Abstract: 1,198,653. Four-wheel-drive transmissions. COUNTY COMMERCIAL CARS Ltd. 1 March, 1968 [10 March, 1967], No. 11344/67. Heading B7H. In a transmission for driving the front wheels of a tractor from the input shaft 11 of the rear wheel differential through a train of gearwheels 18, 24, 35, 36, 37 and a drive shaft 38 extending forwardly to the front wheels, the gear-wheels 18, 24 are mounted in a main transmission housing 10, the gear-wheels 35, 36, 37 are mounted in a casing 27 which is secured to the housing 10 with the gear-wheels 24, 35 in mesh through an opening 25, and slots 32 formed in spaced lugs 31 on the casing 27 are engaged by dogs 34 on a structure 14 which supports the gear-wheels 18, 24 in the housing 10 to ensure parallel alignment of the axes of the gear-wheels 24, 35. A mounting flange 26 on the casing 27 is secured to the housing 10 by studs 28 and has a spigot 30 which registers with the opening 25.
Patent GB-113508-A (GB)
IPC: C25B1/00
Abstract: 113,508. Griffith, C. O. March 6, 1917. Metallic sulphides and other compounds, obtaining. - In the production of sulphides, an anode consisting of a plate or compressed block of an ore or concentrate is employed in a solution of sodium or other chloride. Sulphur is supplied (1) by a layer or block of sulphur on or near the metallic cathode, (2) by adding a thiosulphate or other sulphur compound to the electrolyte, or (3) by decomposition of the anode; in this case, reagents such as the chloride of the anode metal, thiosulphates of calcium and sodium, or solutions of sulphur or sodium sulphate, may be added. When methods (2) and (3) are employed a diaphragm is prefrably provided. The cathode may be the cell wall or a plate or block of metal, ore. &c. A temperature of 50-60‹ C. is suitable. In the cathode compartment, caustic soda can be obtained if a sulphur compound is added to the anode compartment only, or sodium sulphide if sulphur or a sulphur compound is added to the cathode compartment. Stibnite may be concentrated by fusion before use as anode. Antimony sulphide obtained by the process may be purified by solution in alkali and precipitation by an acid ; it is then dried at a low temperature.
Patent GB-912770-A (GB)
Title: Methods and apparatus for melting and casting metals in a vacuum
IPC: C22B9/04
Filed: 1961-03-28
Abstract: 912,770. Metal melting and casting apparatus. PARLANTI, C. A. March 28, 1961, No. 11396/61. Class 51 (2). [Also in Group XXII] Apparatus for melting and casting metal in a vacuum comprises a furnace chamber 1 whose walls are formed of aluminium or aluminium alloy anodized on both the interior and exterior surfaces. The furnace contains a tiltable crucible 6, heated by an induction coil 7, which crucible is charged through conduit 11, vacuum tight valve 13, and shoot 12. Molten metal is poured from the crucible into a trough 8 which terminates in a spout 18 above a vertical passage 15 fitted with a valve 16 and ending in a flange 17. A mould shroud 21, see. Fig. 5, is made of aluminium with anodized surfaces and contains a mould 22 supported on a platform 24 suspended from a lid 23 which is held in sealed engagement with a flange 26 of the shroud by clamps 27. An opening in the lid is controlled by a vacuumtight valve 28 and terminates in a flange 29. The shroud is provided with two conduits 30 and 31 with valves 32 and 33 and an external ring 34 which supports the shroud on a carriage 35 which rides on rails 37. In operation the crucible 6 is charged, valves 13 and 16 are closed, the furnace is evacuated by a pump 4 and the induction coil 7 is energized. A number of shrouds are prepared with the valves 28 closed and are evacuated through one of the conduits 31, 32, the other being closed. When the crucible charge has melted the first shroud is run into position below the passage 15 and is raised by an hydraulic jack 42 so that flanges 17 and 29 are in sealed engagement and valves 16 and 28 are opened. The crucible is tilted and molten metal passes via trough 8 into the mould 22. Valves 16 and 18 are closed, the jack is lowered and the shroud is moved away on its carriage. The next shroud is run into position and the pouring process repeated. The conditions of cooling in the shrouds may be controlled at will either by connecting a vacuum pump to one of the conduits 32, 33 or by introducing a non- oxidizing gas.
Patent GB-1493318-A (GB)
Title: Interchangeable specimen trays and apparatus for a vacuum type testing system
IPC: F04B37/16
Filed: 1975-03-19
Abstract: 1493318 Particle spectrometers; electron beam apparatus; ion beam apparatus VARIAN ASSOCIATES Inc 19 March 1975 [22 March 1974] 11404/75 Heading H1D [Also in Division B1] Sample examining apparatus comprises means defining a vacuum chamber 36, a support 40 mounted in the chamber, a sample holder 10 removably mounted on the support and having a plurality 14 of sample receiving surfaces, a test probe 32 affixed to the support, means 66, 68 for directing radiation to a focal position within the chamber, means 76 for moving the support relative to the focal position to selectively locate the probe or any one of the sample receiving surfaces in a position facing the focal position, and means 82 for moving the support relative to the focal position to selectively position the probe or the surface of any sample on the sample holder at a location coinciding with the focal position. The apparatus is used for Auger analysis and allows calibration and analysis in a single vacuum operation.
Patent GB-783907-A (GB)
Title: Improvements in liquid fuel injectors for aircraft engines
IPC: F23D11/26
Filed: 1955-04-20
Abstract: 783,907. Spray burners. SOC NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU NORD, [formerly SOC FRANCAISE D'ETUDES ET DE CONSTRUCTIONS DE MATERIELS.AERONAUTIQUES SPECIAUX], April 20, 1955 [July 2, 1954], No. 11410/55. Class 75(1) In a liquid fuel injector having a unit which is displaceable by the fuel relatively to a discharge passage against the action of a resilient element to vary the cross section of the fuel passage-way of the inlet portion 6a of the discharge passage, the displaceable unit comprises a plunger 9 having a helically grooved head terminating in a frusto-conical portion 11 seated in the inlet portion 6a of the discharge passage and a shank attached to a resilient diaphragm 21 which unseats the plunger when fuel pressure acts thereon, the unseated plunger being in contact only with the fuel. The inlet portion 6a of the discharge passage is formed by an annular element 6 and leads to a swirl chamber 13 and a discharge aperture 30 both formed in a plate 7. The grooved head has a cylindrical portion 10 which is spaced from the inner wall 5a of an inner member 5. The root diameter of the grooved head is constant and is slightly less than the inlet diameter of the swirl chamber 13. The rim of the diaphragm 21 is clamped between the inner member 5 and a further inner member 4 and a spring 25 acts between the inner member 4, or between the head of an adjusting screw threaded through the inner member 4, and a sleeve 24 screwed on to the shank of the plunger and serving to clamp the centre of the diaphragm to a colalr 20 on the shank. The fuel enters the injector through an inlet 3 and passes through passage 16 in the inner member 4 to an annular chamber 14 located between the inner members 4, 5 and an outer housing 1 and containing a filter 15. Passages 18 which do not intersect the axis of the injector convey the fuel to the discharge passage.
Patent GB-851388-A (GB)
Title: Improvements relating to the finishing of parts
Inventor: MUNRO DONALD FRANK
IPC: B24B31/00
Filed: 1958-04-11
Abstract: 851,388. Grinding and polishing. ROTOFINISH Ltd. July 13, 1959 [April 11, 1958], No. 11559/58. Class 60. A method of finishing component parts (e.g. by deburring) comprises the attachment of the workpieces 15 to a substantially horizontal shaft 9 and rotating them with the shaft so that the workpieces or the portions to be treated are repeatedly carried into, through, and out of a processing medium 7 carried in a stationary vessel 6. The medium may be of stone or other mineral chips in sizes ranging from grains to pebbles and may include abrasive or polishing substances, soaps, detergent, or lubricating materials and a liquid to fill the interstices between the solid elements. The workpieces 15 are mounted on brackets 14 which extend radially from a drum 13 mounted for rotation with the shaft 9 which is motordriven through reduction gearing and may be periodically reversed. The workpieces may be so attached to the radial arms or brackets that they may be indexed about axes perpendicular to that of the shaft so that different surfaces of the work may be prevented in the direction of movement ; this changing of position of the workpieces may be effected automatically through appropriate gearing operated by rotation of the shaft 9. A section of the shaft may be made removable or may be omitted to permit the treatment of disc-like workpieces which, mounted on suitable fixtures, are inserted concentrically on or between the stub axle or axles.
Patent GB-1010914-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B17/00
Filed: 1961-03-29
Abstract: <FORM:1010914/C1/1> In the manufacture of flat glass in ribbon form in which molten glass is delivered to a bath of molten metal, the glass advanced along the bath and cooled sufficiently to be taken in ribbon form unharmed from the bath, the molten glass is established as a layer confined between and engaging surfaces extending longitudinally of the bath, the surfaces being advanced with the glass along the bath so as to maintain a uniform velocity across the whole width of the layer.  Molten glass 11 in a furnace 1 is fed under a tweel 2 over the lip 4 of a spout 3 between jambs 5 to casting rolls 6, 7 to give a ribbon 22 of glass received by the surface 16 of a bath 12 of molten metal in a tank 13, 14, 15 enclosed by a roof 17, 18, 19, 20 and extension 24, 25.  A non-oxidizing atmosphere is maintained through pipes 20a.  The ribbon 22 is melted by heaters 26, 27 in the initial zone of the tank so that the molten glass 28 spreads into contact with the sides of the tank, which are formed by a series of tiles 29, 30 of wettable refractory material held in grooves 31, 32 in the side walls 14.  The tiles 29, 30 are held in the grooves 31, 32 by guide covers 33, 34 fixed by bolts 33a, 34a and the tiles 29, 30 may be joined to each other as by abutting scarf joint surfaces.  The tiles are fed down ramps 35 by belts 36 passing over <FORM:1010914/C1/2> driven pulleys 37, 38 at the speed required to match that of the feed of the glass ribbon 22. The molten glass 28 is then cooled by regulators 39 so that the glass can be taken out of the tank by rollers 40, 41.  When the glass is stiff enough to hold its form, the glass edges are gripped by sharp edged wheels 42, 43 mounted on spindles 44, 45 and spaced so that the rims almost meet and form deep grooves either side so that the glass separates from the tiles 29, 30 as the ribbon is taken on the rollers 40, 41. Alternatively, localized flame heaters may be used to separate the ribbon from the tiles. The glass may be attenuated after separation while in a transitional plastic state or may be reheated to such a plastic state or, as in Specification 1,010,913, the glass ribbon may be stiffened, gripped, made plastic and attenuated and edge rolls may then also be used.
Patent GB-808418-A (GB)
Title: Improvements in or relating to apparatus for conveying and cutting webs of material
Inventor: MOLINS DESMOND WALTER
IPC: B26D7/20
Filed: 1955-04-22
Abstract: 808,418. Cigarette-making machines. MOLINS MACHINE CO. Ltd. April 3, 1956 [April 22, 1955], No. 11654/55. Class 130. [Also in Group VIII] When a first set of tungsten carbide or hardened steel insets 9 on a rotary drum 1 are worn by coaction with a knife 6 acting to cut a web 3 thereagainst, the drum 1 is turned relative to the knife 6, e.g. by relative drive adjustment, to bring one of further sets of insets, e.g. those marked 9a, into action instead, and so on until all the sets have been brought into action. As shown, the knife is a chisel mounted on a rotary member 5 and struck by a hammer 10 to project it twice every drum revolution against the loading of a spring 11 which retracts it when it passes clear of the hammer. The web 3 is held to the drum 1 by suction ports 2 in rows of three and slips over the drum surface since rollers 4 feed it more slowly. Cut-off web portions are spaced apart by being carried with the drum 1 and are either applied so spaced to a travelling cigarette paper web as tipping material or to assemblages each consisting of a cigarette length or lengths in endwise abutment with a mouthpiece portion. The knife 6 may make a single cut or three or four cuts per drum revolution, there being a corresponding number of insets in each set. In a modification, the drum mounts a number of insets which are more or less than an exact multiple of the number of cuts required per revolution, and different ones of which so register with the knife on consecutive cutting strokes that inset wear is distributed over all the insets without drum adjustment. The drum 1 is made of " Fabroil " (Registered Trade Mark). Specification 776,777 is referred to.
Patent GB-335232-A (GB)
Title: Improvements in and relating to the manufacture of dyestuff intermediates
Filed: 1929-04-15
Abstract: 335,232. Smith, W. Primrose, J., Thomas, J., and Scottish Dyes, Ltd. April 15, 1929. 1-Chlor-2-methylanthraquinone 1 - chloranthraquinone-2-carboxlic acid. - 1- Chlor - 2 - methylanthraquinone is obtained by chlorinating 2- methylanthraquinone in oleum of strength not exceeding about 20 per cent at temperatures not exceeding 15‹ C. The process is especially useful as a step in the conversion of 4<1>-methyl-2-benzoylbenzoic acid into 1-chloranthraquinone-2-carboxylic acid without isolation of intermediate products, as described in Specification 207,840. In examples (1) 2-methylanthraquinone is chlorinated in weak oleum in the presence of iodine and (2) 4<1>-methyl-2-benzoylbenzoic acid is heated with oleum, cooled, a little iodine is added, and chlorine is passed through the solution at 0‹ C. The 1-chlor-2-methylanthraquinone may be isolated by pouring the solutions into water, or by treating the solutions with oxidizing agents, such as manganese dioxide, 1-chloranthraquinone-2- carboxylic acid may be obtained directly.