baber/WOPTO huggingface dataset:
Patent GB-632506-A (GB)
Title: Improvements in or relating to fuel-injection nozzles and gas-turbine fuel-systems
IPC: F02C7/236
Filed: 1946-11-19
Abstract: 632,506. Liquid - f u e l burners. CARLISLE, D. R. Nov. 19, 1946, No. 34289. [Class 75(i)] A fuel-injection nozzle for use in a gas turbine fuel system comprises a mixing chamber into which fuel and compressed air can be delivered, an atomising orifice through which the air and fuel are ejected from the chamber into a combustion space, and a baffle so arranged in a fixed location with respect to the orifice on the side thereof remote from the chamber as to ensure more complete mixing of the air and fuel. Fuel and air are supplied through connections 11, 12, respectively, to ducts 13, 14 in the nozzle body 10. The fuel passes through ports 19 in a spacer plate 16 and through swirling slots 20 in a plate 17, whilst the air passes through a chamber 22 to be swirled in helical grooves on the surface of a spring-pressed frustoconical plug 23 and impinges upon the fuel leaving the slots 20. The fuel air mixture leaves the nozzle through a tapering orifice 26 in the end plate 18 and impinges upon a baffle 27 carried by a stem 28 projecting from the plug 23. The baffle 27 has a diameter slightly less than the minimum diameter of the orifice 26 so that the plate 18 may be passed over it. The nozzle may be employed in a fuel system as described in Specification 618,479. Specification 632,507 also is referred to.
Patent GB-352364-A (GB)
Title: Improvements in safe locks
IPC: E05B35/12
Filed: 1930-11-14
Abstract: 352,364. Multiple key-locks. VEREINIGTE KASSEN-, AUFZUGS-UND MASCHINENBAU AKT.-GES. F. WERTHEIM & CO. UND MARCHEGGER MASCHINENFABRIK, 6, Mommsengasse, Vienna. Nov. 14, 1930, No. 34324. Convention date, Nov. 14, 1929. [Class 44.] A multiple key lock is secured to a safe by pivoted fastening plates 3 which when closed obstruct a key-hole 5 and prevent removal of it setting key 4 for the lock mechanism b. The fastening plates are locked in the closed position where they engage behind studs 1 on the safe, by latches 6 which are controlled by a separate key operated mechanism. A lever 9 which is lifted by the setting key maintains the bolt 7 in the shot position while the lock is without a setting key. The sliding tumblers 12 of the lock mechanism b are slotted for engagement with pins 11 on the lock bolt 7 and are controlled by an operating key which enables them to pass the setting key.
Patent GB-1323349-A (GB)
Title: Coloured transparent photo-mask and a method for producing the same
IPC: G03F1/54
Filed: 1970-07-15
Abstract: 1323349 Chalcogen glass; coating glass with glass CANON KK DAI NIPPON INSATSU KK and E IMOUE 15 July 1970 [28 July 1969] 34337/70 Heading C1M [Also in Divisions C7 and G2] A photomask, particularly for producing electronic components, comprises a colourless glass base-plate having on its surface a coloured, transparent image formed of a layer of coloured "chalcogen glass ", the image having an optical density of more than 1À5 to light capable of sensitizing a photosensitive material. "Chalcogen glass " is defined as a glass derived from As together with S and/or Se, optionally with one or more other elements (especially Ge). The glass may be undercoated with a transparent layer of MgF 2  or a Group 3A, 5A or 6A metal or metal oxide (e.g. Cr). The image pattern may be produced by a photoresist technique. In the example, a chalcogen glass is formed by heating As (2 parts), S (1 part) and Se (2À5 parts) at 650‹ C. for 5 hrs.; a clean glass plate is coated by vapour deposition with (a) a layer of Cr, and (b) a layer of the chalogen glass using a plate temperature of 150‹ C. and a source temperature of 400-500‹ C. The layer under the sensitized areas may be removed by etching.
Patent GB-1022694-A (GB)
Title: Styrene-acrylonitrile resins having improved heat resistance
IPC: C08L25/12
Filed: 1963-09-02
Abstract: A homogenous polymer mixture comprises 80 to 99 parts by weight of a styrene-acrylonitrile copolymer and 20 to 1 parts by weight of a synthetic linear polycarbonamide containing recurring amide groups in the polymer chain, e.g. nylon 66 and nylon 6, the total amount of the two resins being 100 parts by weight.  The copolymer comprises 65 to 90% by weight of styrene and 35 to 10% by weight of acrylonitrile. Pigments and fillers may be included in the compositions prior to shaping into moulded articles.
Patent GB-487238-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/36
Filed: 1936-12-16
Abstract: 487,238. Vacuum cleaners. ELECTRO LUX, Ltd. Dec. 16, 1936, No. 34567. Convention date, Dec. 28, 1935. [Class 8 (i)] The exhaust socket 14 of a vacuum cleaner having a horizontal casing is arranged for connection of a blowing conduit in a recess in the rear face of the cleaner, and is either itself inclined to divert the air in a desired direction away from the floor or is provided with inclined guide members 19 at the desired inclination. The inner guides 20 may be pivoted, allowing the blowing conduit to be pushed in past them against springs which maintain them in place when an exhaust conduit is not attached.
Patent GB-1299285-A (GB)
Title: Cathode-ray tube and circuit arrangement with such a cathode-ray tube
IPC: H01J29/80
Filed: 1970-07-16
Abstract: 1299285 Cathode-ray tubes LICENTIA PATENT-VERWALTUNGS GmbH 16 July 1970 [16 July 1969] 34574/70 Heading H1D A post-deflection acceleration system includes a rectangular plane grid 6, Fig. 3, connected to and surrounded by a rectangular frame having a rim 1 which extends in the direction 7 towards the fluorescent screen (not shown) and acts as a correction electrode to correct for pin-cushion distortion; the height h of the rim varies round the periphery, and the angle α is selected to produce the required correction. In addition a further box-like electrode 2 is provided adjacent the grid and may support the grid through insulation 5. This electrode 2 may be maintained at a higher potential than the grid 6 so that any secondary electrons emitted from the grid are collected by the electrode 2 instead of bombarding the fluorescent screen. In addition the electrode 2 screens the second pair of deflection plates 3 and its potential has some effect on the distortion and may be adjusted to correct for manufacturing tolerances in the rim 1. The grid 6 may be a thin foil, a lattice grid, or a parallel wire grid.
Patent GB-427460-A (GB)
Title: Improvements in or relating to a suspension for a cambered ground wheel of a motor vehicle
IPC: B62D17/00
Filed: 1934-12-01
Abstract: 427,460. Vehicle spring-suspensions. CHRYSLER CORPORATION, 341, Massachusetts Avenue, Highland Park, Michigan, U.S.A.-(Assignees of Delahanty, E. J.) Dec. 1, 1934, No. 34602. Convention date, Dec. 9, 1933. [Class 108 (ii)] In an independent wheel suspension comprising an arm for vertical displacement with the wheel and linkage mechanism connecting each end of the arm with the vehicle, one of said linkage mechanisms includes a link and a connector device which latter is adjustable to vary the camber of the wheels. As shown, the wheels B are cambered and supported on a member C carrying a swivel pin the axis X X of which is inclined so as to give a leverage tending to enable the tractive force to restore the wheel to straight ahead position. An arm 13 is mounted on the swivel pin and its ends are connected to connector devices 23, 23<1> carried by the upper and lower linkages 14, 15. These linkages are connected to pivots 19, 19<1> on the frame A, the pivot 19 preferably being the pin of a shock absorber 18. Springs 27 are arranged between the frame A and the lower linkage and the whole suspension is of general trapezoidal form as shown. The connector devices 23, 23<1> are mounted on the linkages 14, 15 by means of their stems 22, 23, locking means 20 being provided and shims 25 may be placed on the stem on either side of the linkage in effect to lengthon or shorten the connector devices 23, 23<1>. By this means the camber and the wheel gauge may be varied.
Patent GB-487329-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J29/45
Filed: 1936-12-17
Abstract: 487,329. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. Dec. 17, 1936, No. 34691. Drawings to Specification. [Classes 39 (i) and 40 (iii)] Image signals for use in a television system are obtained by the use of the photo-voltaic effect obtained from a mosaic of cuprous oxide elements mounted directly on a layer of conductive material, which may be a film of gold supported on a transparent plate of insulating material. A film of metal may be deposited over the cuprous oxide elements. The mosaic is scanned either (i) directly by a cathode-ray beam, or (ii) by electrons from a photo-electric cathode placed close to the mosaic, this cathode being scanned by a light spot from a fluorescent screen which is scanned by an electron beam. A grid electrode collects secondaries emitted from the mosaic ; the grid may be that used in depositing the mosaic elements on the base. According to the Provisional Specification the elements may be of selenium; Specification 484,575 is referred to.
Patent GB-354135-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B15/14
Filed: 1930-11-19
Abstract: 354,135. Knitting. HEMPHILL CO., Central Falls, Rhode Island, U.S.A.-(Assignees of Lawson, R. H. ; Pawtucket, Rhode Island, U.S.A.) Nov. 19, 1930, No. 34818. Convent.on date, Dec. 31, 1929. [Class 74 (ii).] The' sinkers are moved upwards during stitch drawing and to prevent loops in process of formation from being rubbed by more completely formed loops, two or more adjacent sinkers are successively maintained at substantially the stitch-drawing level. The invention is described as applied to a multfeed machine with rotating needle cylinder. The sinker head 23 is fastened to a ring 40 having internal teeth 41 to mesh with the cylinder tricks. After retraction of each sinker 21 by the cam 19, a cam 45 forming part of a plate 46 carried by the cylinder enters within each throat 21a in turn and thereafter the cam 47 successively raises each sinker as the corresponding needles are depressed by the stitch cam. By thus dividing the operation of draw ng loops between the sinkers and needles, the sinker taking the chief part, the angle of the draw cam can be made less steep, with consequent gain in speed of working. A modified form of sinker is provided with an incline which when the sinker is pushed forward engages a cam and is raised thereby. The sinkers are guided in their radial movements by removable walls which take the place of the usual stitch ring. The draw of the stitch cams may be readily adjusted by hand at each feed. Specification 20101/09, [Class 74 (ii), Knitting &c.], is referred to.
Patent GB-1407221-A (GB)
Title: Jet propulsion nozzles
IPC: F02K1/12
Filed: 1972-07-25
Abstract: 1407221 Jet propulsion nozzles - variable area BRITISH AIRCRAFT CORP Ltd 19 July 1973 [25 July 1972] 34836/72 Heading F1J The invention relates to a jet propulsion nozzle of the variable area type comprising a series of pivotally mounted flaps, the flaps being of different lengths such that when moved uniformly angularly to vary the nozzle area, the outlet defined by the nozzle lip is, when viewed along the nozzle axis, of non-circular form. The nozzle comprises a series of main flaps 3 which are pivotally mounted on fixed structure by means of lugs 4, the flaps being spaced apart and intermediate flaps 5 being disposed therebetween to close the gaps. The flaps are of differing lengths as shown so that the nozzle outlet defined by the downstream edges 3a, 5a of the flaps is of non- circular form as shown in Fig. 2. The object of the invention is to effect some attenuation of noise.
Patent GB-199751-A (GB)
Title: Improvements in or relating to the manufacture of vegetable charcoal
IPC: C01B31/12
Filed: 1921-12-31
Abstract: 199,751. Bonnard, L. R. Dec 31, 1921. Charcoal.-A vegetable material, preferably of fibrous character, for example sawdust or peat, is comminuted and intimately mixed with slaked lime and heated in a retort to a temperature of about 1000‹ C., until carbon monoxide ceases to be evolved, when the temperature is maintained for a further short period. The mixing with lime is preferably facilitated by the presence of a small proportion of water. According to examples equal weights of sawdust and water are mixed with calcium hydroxide in a ball- or edgerunner-mill, and then heated to about 1000‹ C. in a retort, preferably that described in Specification 196,958, [Class 55 (i), Coking &c.], the period of further heating varying with the amount of lime. After cooling, the lime may be again slaked and the whole submitted to a further heat treatment. Chalk may be used instead of lime, but in this case the second heat treatment is essential. The lime may be removed by any known means. The charcoal is suitable for purifying sugar, or oils, or for sterilizing liquids &c. Bye-products from the distillation are collected. Specifications 10622/15*, 124,638, and 167,195 also are referred to.
Patent GB-1071701-A (GB)
Title: Apparatus for filling flasks with granular material
IPC: B22C5/12
Filed: 1964-08-27
Abstract: 1,071,701. Discharging material from hoppers. NATIONAL ENGINEERING CO. OF CANADA Ltd. Aug. 27, 1964 [Sept. 6, 1963], No. 35137/64. Heading B8S. Apparatus for filling mould flasks with foundry sand comprises a hopper 12 having a sloping bottom wall 18 with an opening 20 adjacent its lower end, an endless belt conveyer 22 disposed below the opening and including a belt 24 forming a downwardly travelling hopper wall portion, and a pivotally mounted clam-shell door 78 having a leading edge movable towards and away from the belt 24 to control the discharge of the sand from the hopper. The belt 24 has ridges 24a thereon which may be integral with the belt or may be wood slats bolted to the belt. The conveyer includes backing boards 32 for supporting the belt 24 and has a tension pulley 34 at its front end and a drive pulley 44 at its rear end, the pulley 44 being driven through a torque-arm gear reducer 52 by an electric motor 56. A strip of belting material 66 overlies the belt 24 at the opening 20. The lower end of the hopper 12 is provided with a discharge hood 68 to which the clam-shell door 78 is pivoted and the leading edge of the door has. attached thereto a strip of belting material. The door 78 is moved by an air or hydraulic cylinder 94. A discharge shoot 100, Fig. 3 (not shown), is disposed below the door 78. In operation the flasks are first supplied with a thin stream of sand by the conveyer 22, the clam-shell door 78 being in the closed position. Because the stream of sand is thin it is thoroughly aerated as it falls into the flasks and loosely covers the mould patterns therein for permitting the metal to expand during the subsequent moulding process. When the coating of loosely packed sand is sufficient the clam-shell door 78 is fully opened to provide a rapid discharge of sand from the hood 68, the sand being tightly packed over the loosely packed sand.
Patent GB-1381249-A (GB)
Title: Isoxazolidine derivatives
IPC: C07D261/02
Filed: 1973-07-24
Abstract: 1381249 Isoxazolidines GRUPPO LEPETIT SpA 24 July 1973 [17 Aug 1972] 35145/73 Heading C2C  The invention comprises compounds of the formula where R and R 1  are hydrogen, C 1 -C 6  alkyl, carbo-C 1 -C 5  alkoxy or phenyl provided that both are not hydrogen simultaneously and R 2  is C 1 -C 6  alkyl or C 1 -C 6  acyl. The compounds are prepared by acylating an appropriate substituted isoxazolidine with an appropriate substituted benzoic acid halide in the presence of an organic nitrogen base. The compounds are active on the central nervous system and produce hypnotic, sedative and myorelaxing effects.
Patent GB-1516144-A (GB)
Title: Turbine-type flowmeters
IPC: G01F1/12
Filed: 1975-08-26
Abstract: 1516144 Turbine type flowmeters COMPTEURS SCHLUMBERGER 26 Aug 1975 [23 Aug 1974] 35154/75 Heading FIT A turbine type flowmeter comprises a rotor 19 secured on a shaft 23 which is rotatably mounted in a bearing 25, the rotor carrying axial-flow blades 18 at the periphery. The turbine is supported within a casing 11 through which fluid flows as indicated by arrow 40 a fairing member 15 and a member 39 defining with the rim 19 of the turbine rotor an annular fluid-flow-path 16 of convergentdivergent form, the rotor blades being located at the throat of the flow-path. The fairing 15 and member 39 are supported by means of webs 20 and 29; the bearing is supported by means of a flange 26 at the upstream end of the member 39. Openings 36 are formed in the rotor disc 19 and vanes 38 are disposed at the upstream side of the disc, one vane to each opening, the vanes acting as a pump to cause flow of leakage fluid contained within the cavity 21 within the fairing 15 to pass from the upstream side of the rotor disc to the downstream side.
Patent GB-624602-A (GB)
Title: Improvements in or relating to circuits for amplifying high-frequency oscillations
IPC: H03F1/10
Filed: 1947-12-31
Abstract: 624,602. Valve amplifying circuits. PHILIPS ELECTRICAL, Ltd., (formerly PHILIPS LAMPS, Ltd.). Dec. 31, 1947, Nos. 35183 [Convention date, July 25, 1939], 35184, 35185, 35186 [Convention dates, March 21, 1940], and 35187 [Convention date, March 26, 1940]. [Classes 40 (v) and 40 (vi)] In a high-frequency amplifier the input is connected to one cathode lead and the output to a separate cathode lead, one or both leads having an inductive character and the capacities to the control grid and the impedances in the cathode leads being such that the input damping is reduced to substantially zero or is negative. Fig. 4 shows an arrangement in which the cathode leads include inductances L1, L2 and these are proportioned relatively to capacities C1, C2 to obtain the desired conditions. The cathode heating source 17 is connected through chokes 15, 16 and capacities C1, C2 may be constituted in whole or in part by the capacity of the control grid to the cathode and to one or more auxiliary electrodes. Fig. 6 shows an arrangement in which both leads are connected to one end of the cathode and the supply is connected to the other end through a choke 18. In this arrangement, if the input is earthed, the output is returned to the remote point 9 on the other filament lead, as shown. Alternatively, the output may be earthed, in which case the cathode supply is connected to the point 9 and the input through the lead including inductance L1, Fig. 5 (not shown). With the output earthed, a number of stages in cascade may be employed, Fig. 7 (not shown), but in the last stage, Fig. 8, the input may be earthed, but unless this is a frequency transformation stage, the accessible part of the anode lead and the output circuit 13 are screened so that leakage currents do not traverse, in impedance L1, the input circuit. A number of separate stages may be capacitatively or inductively coupled. When a valve having a secondary emission electrode is used, this is connected for high-frequency to the input circuit for frequencies below 50 megacycles. At higher frequencies, when the electron transit time is no longer negligible, the anode is connected to the input, Fig. 11, and the output circuit 13 to the point' 9. When the phase-lag is larger than 90 degrees with still higher frequencies, composite impedances may be substituted for the impedances L1, L2, C1, C2 or the connections of the anode and the secondary electrode may be interchanged. The cathode leads may be inductively coupled together and may be coupled to the input circuit or to a supplementary inductance in the input circuit in such a sense as to produce regenerative coupling, Fig. 10 (not shown).
Patent GB-1075073-A (GB)
Title: Improvements in electric heating resistors
IPC: H05B3/14
Filed: 1964-08-27
Abstract: 1,075,073. Electrical heating resistors. KANTHAL A.B. Aug. 27, 1964 [Aug. 27, 1963], No. 35218/64. Heading H5H. To prevent adhesion between a helical, molybdenum silicide, electrical heating resistor 1 and its support rod 3 caused by the formation of quartz glass films on the co-operating surfaces of these members, a layer 4 of insulating material which does not adhere to the quartz glass films is interposed between the resistor and the rod. The layer 4 is preferably mullite and may be flame-sprayed directly on to the rod 3 or may be in the form of one or more tubes threaded on to the rod. Various materials suitable for the resistor and rod are specified.
Patent GB-470955-A (GB)
Title: Sensitizing of photographic halogen silver emulsions
IPC: G03C1/18
Filed: 1936-12-23
Abstract: 470,955. Sensitizing photographic emulsions. GEVAERT PHOTO-PRODUCTEN N. V. Dec. 23, 1936, No. 35270. Convention date, Dec. 23, 1935. Drawings to Specification. Sample furnished. [Class 98 (ii)] Photographic silver halide emulsions are sensitized by carbocyanines containing a naphthothiazole nucleus other than a ##<1>-naphthothiazole nucleus and a benzthiazole or benzselenazole nucleus, the two nuclei being linked together by a non-substituted trimethine chain. Carbocyanines specified are 2 : 2<1>-diethyl-5<1> : 6<1>-benzothiocarbocyanine iodide, 2 : 2<1>-diethyl- 3<1>: 4<1>-benzothiocarbocyanine iodide, 2 : 2<1>-diethyl - 3<1> : 4<1> - benzoseleno - thiocarbocyanine iodide, and 2 2<1>-diethyl-5-methoxy-3<1> : 4<1>- benzo-thiocarbocyanine iodide. Sensitizing data are given.
Patent GB-411766-A (GB)
Title: Rotary electric switches
IPC: H01H9/26
Filed: 1933-12-15
Abstract: 411,766. Locking switches. HERBERT, SIR A., LLOYD, A. H., and JINMAN, C. H., c/o Herbert, Ltd., Canal Road, Edgwick, Coventry. Dec. 15, 1933, No. 35319. [Class 38 (v).] A multi-position rotary switch has a mechanical and electrical interlock so that the switch cannot be actuated until the circuit through it has been broken. The operating spindle 11 of the rotary switch (not shown) is rigidly connected to a plate 14 to which is pivoted at 16 a handle 15 having a backward extension carrying a bar 18, to one end of which is connected a plunger 19 urged by a spring 21 into engagement with one of a series of holes 22 in a fixed plate 12. The other end of the bar 18 is loosely connected to a plunger 20 carrying an insulated contact 24 urged by a spring 28 into bridging engagement with a pair of arcuate contacts 25, 26. A pair of stops 30, 31 limit the pivotal movement of the handle 15. To operate the rotary spindle 11, the handle 15 is first depressed. This breaks the circuit at 24, 25, 26 of an electromagnetic contactor controlling the current through the switch. The plunger 19 is withdrawn from locking engagement with the hole 22 and the handle 15 may then be moved to rotate the spindle 11 to the new switching position. The handle 15 is then lifted by the springs 21, 28 to lock the spindle by means of the plunger 19 and the circuit is then completed by means of the contacts 24, 25, 26. This avoids sparking at the rotary switch contacts. A roller 34 on a spring biassed pivoted arm 35 engages notches in a member 32 fixed on the spindle 11 to assist in locating the switching positions. Specification 387,495, [Group XXXV], is referred to.