baber/WOPTO huggingface dataset:
Patent GB-1291761-A (GB)
Title: Piezoelectric ceramic compositions
Inventor: IBE TAKAYOSHI
IPC: C04B35/51
Filed: 1970-01-15
Abstract: 1291761 Piezoelectric ceramics RION K K 15 Jan 1970 2096/70 Heading C1J (A) Piezoelectric ceramics consist of a solid solution of the components (1) 30-60 mol per cent of PbTiO 3 , alone or in admixture with an up to equimolecular amount of PbSnO 3 , (2) 40-70 mol per cent of PbZrO 3 , alone or in admixture with an up to equimolecular amount of PbSnO 3 , (3) 1-30 mol per cent of PbO, CaO, SrO, BaO and/or CdO and (4) 1-15 mol per cent of Nb 2 O 5 , Ta 2 O 5  and/or Bi 2 O 5 ; wherein the percentages of components (1) and (2) total 100 mol per cent and the percentages of components (3) and (4) are based upon the total of components (1) and (2). (B) Piezoelectric ceramics consist of a solid solution of the components (1) 30-60 mol per cent of PbTiO 3 , alone or in admixture with an up to equimolecular amount of PbSnO 3 , (2) 25-65 mol per cent of PbZrO 3 , alone or in admixture with an up to equimolecular amount of PbSnO 3 , and (3) 1-30 mol per cent of a compound of the general formula A m MO( 2À5+m ), wheie A is Pb<SP>II</SP>, Ca<SP>II</SP>, Sr<SP>II</SP>, Ba<SP>II</SP> or Cd<SP>II</SP>, M is Nb<SP>V</SP>, Ta<SP>V</SP> or Bi<SP>V</SP> and m is 0À25, 0À50, 0À75, 1À00, 1À25 or 1À50.
Patent GB-890137-A (GB)
Title: Process for preparing cyclohexanone and cyclohexanol
Filed: 1960-01-20
Abstract: A process, wherein cyclohexanol and cyclohexanone are prepared by catalytic oxidation of cyclohexane with a molecular oxygen-containing gas, comprises removing or substantially removing non-converted cyclohexane from the oil obtained by the oxidation and then treating the oil at a temperature of 70 DEG C.-96 DEG C. first with an aqueous sodium or potassium carbonate solution and subsequently, after removal of at least the greater part of the carbon dioxide formed, with an aqueous sodium or potassium hydroxide solution until the hydroxide concentration of the water layer then present is 0.05 to 2 mgeq/g.  The resulting mixture of cyclohexanol and cyclohexanone may then be separated by steam distillation.  The carbonate tratment may take place continuously in one or more stages preferably using an amount of carbonate such that not more than 0.1 mgeq/g. of acid or base is needed to make the water layer in the only or last step react neutral to phenolphthalein.  An example is given and compared with similar processes where the oxidation product is treated with carbonate and hydroxide simultaneously or with carbonate alone. Specification 820,435 is referred to.
Patent GB-702150-A (GB)
Title: Driving gear for moving sound tapes, e.g. for magnetic sound tapes
IPC: G11B15/26
Filed: 1951-01-29
Abstract: 702,150. Feeding webs. LOEWE OPTA AKT.- GES, [formerly OPTA RADIO AKT.-GES] Jan. 29, 1951 [Feb. 3, 1950]. No. 2145/51. Class 100 (i). [Also in Groups XXIV and XXXVIII] A sound tape, e.g. a magnetic tape, is driven by a pulley 4 having a rubber lining 5. The pulley is driven by engagement with a coupling surface 8 on a sleeve 7 mounted for rotation with a driving shaft 3 by a pin 10. The pin engages in a slot 11 in the sleeve 7 to allow the sleeve to move longitudinally with respect to the shaft. When the tape is to be rewound, the shaft 3 is raised, e.g. by a lever (not shown), and a shoulder 16 on the shaft engages a bearing 6 and lifts the pulley 4 off the driving sur ace 8 so that it idles on the shaft 3. The weight of a fly wheel 15 normally keeps the pulley in engagement with the surface 8.
Patent GB-771075-A (GB)
Title: Metal bearings
Inventor: HALLEWELL GEORGE
IPC: F16C33/10
Filed: 1954-01-25
Abstract: 771,075. Bearings. BLACKSTONE & CO., Ltd. Jan. 24, 1955 [Jan. 25, 1954], No. 2236/54. Drawings to Specification. Class 12 (1). In a plain journal or bearing, the surface is hardened by a pattern of hardened lines spaced at intervals inversely proportioned to the loads which the various areas of the surface bear in operation. The hardness lines may be produced by a high-frequency element or a flame hardening process, and the lines may be straight, curved, parallel or intersecting. The invention is particularly applicable to the bearing surfaces of a crank-shaft.
Patent GB-162084-A (GB)
Title: Improvements in or relating to factory elevating transporter trucks
IPC: B62B3/06
Filed: 1920-01-24
Abstract: 162,084. Munro, D. Jan. 24, 1920. Dash-pots.-A dash-pot for cushioning the descent of the load on an elevating truck comprises an outer casing 31 and a tubular plunger 35 having in its head a perforated valve 42 held by a spring 43 abutting against an apertured plate 41 at the end of the plunger. The plunger 35 forms an extension on a tube 36 extending transversely across the truck.
Patent GB-1077033-A (GB)
Title: Improvements in,or relating to,pump elements
Inventor: WILLGERODT WERNER
IPC: A61M60/39
Filed: 1966-01-18
Abstract: 1,077,033. Pump elements for blood exchange apparatuses. MEDIZINTECHNIK LEIPZIG VEB. Jan. 18, 1966, No. 2284/66. Heading A5R. [Also in Division F2] A pump element for blood exchange apparatuses comprises a piston and a cylinder, the piston being provided with a peripheral groove and inlet and outlet bores which extend from the end-face remote from the cylinder head to communicate with the peripheral groove whereby a liquid sealing medium can be circulated in the groove. A system of two or more such pump elements may be incorporated in a blood exchange apparatus. As shown, piston 5 of pump element 1 is provided with peripheral groove 2 and bores 4. A liquid sealing medium 9, e.g. blood plasma, is pumped from reservoir 10 through groove 2 into waste container 11. In a modification (not shown), the liquid sealing medium may be circulated in a closed loop from the groove of a last pump element to the groove of a first pump element. In order to ensure an adequate amount of sealing medium in each groove, an extension 6 is provided on the outlet bore. The liquid sealing medium is passed from reservoir to grooves and finally to waste container via conduits 8 which are connected to bores 4 by connectors 7. Blood is pumped from chamber 12, and the function of the liquid sealing medium is to prevent air from entering the blood.,
Patent GB-1158600-A (GB)
Title: Radiant Flame Gas Burners
IPC: F23D14/24
Filed: 1968-01-16
Abstract: 1,158,600. Burners. ENTREPRISE GENERALE DE CHAUFFAGE INDUSTRIEL PILLARD FRERES & CIE, S.A. 16 Jan., 1968 [18 Jan., 1967], No. 2319/68. Heading F4T. In a burner for gaseous hydrocarbon fuels, such as natural gas containing a high proportion of methane, a main flow of fuel 1 from an outlet 2 is surrounded by a screen 3 consisting of combustion products obtained by burning a fraction of the fuel supply in an auxiliary burner having distributing fingers 5 supplied with fuel through an orifice 4 and primary air 6 rotated by vanes 7, the screen 3 separating the main fuel from the main combustion air 8 so that it is heated to a high temperature with consequent cracking of the hydrocarbons to produce particles of carbon which cause a luminous radiant flame when the final combustion takes place. In a modification the fingers 5 are replaced by a rose.
Patent GB-450104-A (GB)
Title: Means for indicating when a filter becomes partly choked
IPC: F02M35/09
Filed: 1935-01-24
Abstract: 450,104. Filters. TECALEMIT, Ltd., and CHALMERS, R. A., Great West Road, Brentford, Middlesex. Jan. 24, 1935, No. 2362. [Class 46] A filter, such as one for the engine oil of a motor car, is fitted with a byepass valve which opens when the pressure drop through the medium exceeds a predetermined value, and the opening of the valve closes an electric circuit to operate a visual or aural signal if the temperature of the liquid being filtered exceeds a predetermined value. Fig. 1 shows a filter element 1 in a casing 2 with inlet 3 and outlet 9. A piston-valve 13, shown in section in Fig. 2, is mounted in the cover 5 of the filter casing, so that excess pressure outside the element, due to closing of the element, causes the piston 18 to rise against the action of a spring 24 and allow unfiltered oil to pass through the bore of the valve casing and through apertures 19 in the valve casing into a bore 8 in the filter cover communicating with the outlet 9. The piston carries a bi-metal strip 35 which, when the valve opens, engages the bore of an insulated contact piece 25 and closes a circuit containing a battery 37, a light bulb 36 and an earth return 38. For contact it is necessary that the upper end of the strip 35 should be sufficiently deflected and if the oil has not attained a sufficiently high temperature the signal will not be operated when the byepass valve is opened.
Patent GB-124015-A (GB)
Title: Improvements in or relating to Carbonising or Distillation Apparatus.
Inventor: FREEMAN NAT HARRIS
IPC: C10B7/02
Filed: 1918-02-12
Abstract: 124,015. Freeman, N. H. Feb. 12, 1918. Carbonizing-apparatus.-Coal or the like is carbonized in a series of chambers a arranged in tiers and adapted to heat the material at different tem. peratures, the by-products being led away separately from each chamber by outlets f. The material is fed through an opening b on to the top disk e and is directed outwards by fixed shoes e<1>, and when it falls to the bottom of the top chamber a it is directed inwards by rotating shoes d attached to the under side of the top disk, until it falls on to the disk e of the neck chamber, and thus it proceeds through the apparatus The heating is effected in annular chambers a<1>, and the temperature is regulated and controlled by apparatus described in Specification 120,590, [Class 64 (ii), Heating systems &c.].
Patent GB-249961-A (GB)
Title: Improvements in or in connection with machinery or apparatus for cleaning bottles, jars and other hollow cylindrical containers
IPC: B08B9/36
Filed: 1925-01-29
Abstract: 249,961. Hill, T. Jan. 29, 1925. Bottles, jars, and cylindrical articles, washing. -Apparatus for cleaning bottles and other hollow cylindrical vessels, of the type described in Specification 29048/09, comprises a frame supporting a tank which is divided by one or more partitions to form two or more compartments having common base and side members, one of these compartments carrying at the top rotatable shafts for the brush-holders, the remaining compartment or compartments being adapted to hold washing liquid. As shown a frame 2 carries a tank divided by a partition 7 into two compartments 1, 6, the latter carrying a bridge 5 which supports the brush spindles 11 provided with fast and loose pulleys 12 adapted to be driven by overhead shafting or by other means. The brushes for cleaning the exterior of the bottles, &c. are supported as described in Specification 3651/15. The compartment 6 may be formed with openings to facilitate access to the driving mechanism. In a modified construction, when two sets of brushes are employed the tank is divided into three compartments by two partitions, the brush spindles being supported by a bridge over the middle compartment with the brushes projecting across both partitions. The bearings for the upper brush spindles are preferably provided with oil or grease cups connected by channels with the bearings for the lower brush spindles.
Patent GB-1116554-A (GB)
Title: Metal-free phthalocyanine
IPC: G03G5/08
Filed: 1965-06-15
Abstract: The invention comprises the X-form of metal-free phthalocyanine having an X-ray diffraction pattern exhibiting strong lines at Bragg angles of 7.5, 9.1, 16.7, 17.3 and 22.3 and an infra-red spectrum having a strong band at 746 cm.-1, three peaks between 700 and 750 cm.-1 and bands of about equal intensity at 1318 and 1330 cm.-1 The X-form is prepared by removing impurities from a , b  or g metal-free phthalocyanine and milling until the required form is obtained.
Patent GB-547490-A (GB)
Title: Improvements in or relating to liquid pressure braking systems
IPC: B60T11/224
Filed: 1941-02-26
Abstract: 547,490. Hydraulic brakes. HYDRAULIC BRAKE CO. Feb. 26,1941, No. 2636. Convention date, Feb. 26, 1940. [Class 103 (i)] In the master cylinder 24 a high pressure chamber 34 of reduced diameter is obtained by the insertion of a sleeve 30 at the delivery end of the cylinder and a lower-pressure chamber 32 of full cylinder bore has working in it a piston 66 with a stem 80 carrying a piston 82 for the high-pressure chamber 34. During the initial movement of piston 66 liquid passes from the low-pressure chamber 32 through passages 100 and past the packing cup 102 into the high-pressure chamber to advance the brake shoes into contact with the drum; as the pressure increases liquid from chamber 32 passes through a closely-restricted passage 94 into a bore 84 of the piston to lift a spring control valve 90 and thus enters a chamber communicating with the reservoir, the further action being continued solely by the high-pressure piston 82. In two modifications the spring control valve is operated by direct pressure from the higher pressure chamber upon its stem, the pressure liquid in one form also passing through a constricted passage.
Patent GB-719197-A (GB)
Title: Bubble trays for distillation columns and the like
IPC: B01D3/18
Filed: 1953-01-29
Abstract: 719,197. Treating gases with liquids. KOPPERS GES., H. Jan. 29, 1953 [Jan. 30, 1952], No. 2638/53. Class 55 (2) A bubble tray assembly for a distillation column &c. comprises superposed trays each of stepped formation with wires determining the height of liquid on the successive steps which are arranged as a spiral stairway winding round the column axis. A tray having three steps 1, 2, 3 is fed with condensate from an upper plate through a conduit 4, liquid passing over a weir 6 on to step 1 and thence over weir 7 on to step 2 and over weir 9 on to step 3 finally flowing over a weir 10 into a discharge pipe 11. A part 8 of the weirs of less height near the column wall enables most of the condensate to overflow near the outer edge of the steps. The drop from step to step increases in the direction of now. In a modification a diametral. wall separates the tray into halves each with two steps, liquid passing from one half to the oppositely located half of the tray beneath, so that two separate streams flow alternately round the left and right hand halves of the column.
Patent GB-164073-A (GB)
Title: Improvements in furnaces
IPC: C03B5/06
Filed: 1920-01-29
Abstract: 164,073. Travers, M. W. Jan. 29, 1920. Gascous-fuel furnaces.-Beneath the eye c of a gas-fired furnace for melting glass or the like is arranged a chamber a of increasing diameter towards the bottom. Gas is supplied to the chamber through a port d and air through ports b. The gas-supply channel e serves to carry away glass in the event of a pot breaking.
Patent GB-621565-A (GB)
Title: Improvements in liquid-break electric circuit breakers provided with arc-extinguishing means
IPC: H01H33/16
Filed: 1946-01-29
Abstract: 621,565. Liquid-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., COX, H. E., and POLLARD, A. H. Jan. 29,1946, No. 2877. [Class 38(v)] A liquid-break circuit breaker has a wire wound non-inductive resistance 10 as described in Specification 566,559, [Group XXXVI], mounted adjacent an explosion pot 14 and connected to fixed spring- loaded pivoted contacts 15 by a lead 21 and an annular electrode 25 through which a movable contact 17 passes with rubbing contact. The resistance 10 has such a value as to critically damp the circuit broken, causing the voltage to rise exponentially to its final recovery value, thereby hindering restriking of the arc. Worst arcing conditions are stated to occur at about 2 per cent of the full breaking-current rating and the resistance is 25 per cent to 66 per cent of the value calculated on this basis. A pair of such assemblies of explosion pot and resistance are enclosed by the breaker tank and form one pole, Fig. 5 (not shown). The method of resistance calculation and characteristic curves are set out in the Specification.
Patent GB-878914-A (GB)
Title: Combination of an aircraft and an installation to assist the take-off and landing ofthe aircraft
IPC: B64F1/00
Filed: 1959-01-28
Abstract: 878,914. Apparatus for vertical take-off aircraft. CZERWINSKI, W. Jan. 28, 1959 [Feb. 5, 1958], No. 3061/59. Class 4. To increase the lift on a vertical take-off and landing aircraft 10 wherein the engines 15 may be swung after take-off about a transverse axis 16 from the position shown to a forward propulsion position, the landing ground is provided with a pair of rings 17 each forming an open-topped enclosure for the propulsive gases from the engines. The rings may enclose a plurality of smaller opentopped cylindrical elements and in another embodiment, instead of rings there may be a rectangular enclosure, rectangularly-divided, of such a size that it may contain the gases from both engines. It is stated that the device may be mounted on an aircraft carrier to constitute an outboard landing platform and it may be used with helicopters and aircraft which take-off with their longitudinal axis substantially vertical.
Patent GB-642181-A (GB)
Title: Improvements in or relating to radio beacons and beacon systems
IPC: G01S1/50
Filed: 1947-02-03
Abstract: 642,181. Radio navigation. PHILIPS LAMPS, Ltd. Feb. 3, 1947, No. 3205. Convention date, Feb. 4, 1944. [Class 40 (vii)] Relates to phase beacon systems in which two concentric fields are established the modulation phase of one field being proportional to azimuth and the modulation phase of the other reference field being independent of azimuth so that the bearing # of a mobile receiver relative to the beacons may be determined by comparing the phases of the two modulation signals. According to the invention, the two modulation frequencies are harmonically related, the bearing dependent modulation signal having the lower frequency. As shown in the Figure a modulating frequency w is applied in quadrature from the source 7 to the balanced modulators 5 and 6 together with a carrier from the source 1 the outputs from the modulators being applied to the crossed pairs of vertical aerials 13, 15 and 14, 16 and a carrier frequency is applied to the central aerial 17 from the modulator 4 so that a resultant field is established with a modulation phase proportional to azimuth. The modulation frequency w is also multiplied by a factor n at 11 and applied together with a carrier frequency from 1 to the modulator 4 the output from which is applied to the central aerial 17 to establish the omnidirectional reference field. At the mobile receiver, Fig. 2 (not shown), the two modulation signals having frequencies wand nw are separated by filters and applied to the, X and Y plates respectively of a cathode-ray tube to produce a stationary Lissajous figure the ordinate of the point of intersection of the Lissajous figure with the Y axis being a direct measure of the angle n#. Thus when n is large # may be determined accurately but the result has an n-fold ambiguity. Alternatively the bearing dependent modulation signal of frequency w may be frequency multiplied by a factor n and then compared in phase with the reference frequency nw. Specifications 594,532 and 642,094 are referred to.
Patent GB-731247-A (GB)
Title: Improvements in or relating to the protection and colouring of aluminium and aluminium alloys
IPC: C25D11/24
Filed: 1951-02-09
Abstract: An aluminium oxide film on aluminium or an aluminium alloy is impregnated with an inorganic colouring compound insoluble or only slightly soluble in water by treatment with a solution containing soluble components adapted to react to form the desired insoluble compound, the constitution of the solution being such that reaction is delayed until after impregnation of the film. Precipitation may be retarded by inclusion in the solution of an agent forming a complex with the reacting anion or cation of the such agents including ammonia or a dicarboxylic acid having the active structure <FORM:0731247/II/1> R being a low molecular weight alkyl group, examples of such acids being succinic acid, or phtalic acid or tricarballylic acid. Examples of impregnating solutions are (i) a solution of nickel di-chromate obtained by dissolving nickel carbonate in chromic acid, and adding the solution to water until pH is between 5 and 6, the solution being employed at 80 DEG  C.; (ii) a solution containing 110 gms. chromic acid and 60 gms. nickel carbonate per litre of water heated to 80 DEG  C., sufficient ammonia solution (S.G.O. 880) being added to redissolve the precipitate formed at first; alternatively this solution may be at room temperature; (iii) a solution of nickel di-chromate is obtained as in example (i) and a molecular equivalent of succinic acid added and pH adjusted to about 6 by addition of ammonia; (iv) ammonium chromate is added to a solution of cobalt acetate to form a precipitate which is redissolved by addition of malonic acid and ammonia; (v) ammonium chromate is added to a solution of ferric ammonium oxalate and pH adjusted to between 5 and 6.  Specifications 391,903; 393,966, [Group IV], and 528,314 are referred to.
Patent GB-667163-A (GB)
Title: Method of and apparatus for making blown plastic articles
IPC: B29C49/04
Filed: 1948-02-04
Abstract: 667,163. Extruding and blowing plastics material. BRITISH XYLONITE CO., Ltd. Feb. 4. 1948. [May 9, 1941] No. 3297/48. Class 87(ii). A bubble 16 of plastic material is extruded from a head 15 into a two-part mould 17, 17a. The mould is closed about the bubble and cutting edges 23a on the mould remove excess material from the bubble, Fig. 2 (not shown). The bubble is then blown to expand it into contact with the mould, Fig. 4 (not shown). Pinching members 19, 21 may form an eye on the moulded article. The articles are removed by a knockout pin and a blast of air, and discharged into a cooling bath, Fig. 5 (not shown). The cutting edges 23a may extend around the periphery of the mould cavity. In a modification. an article which may be made into a salt cellar is formed by raising a plunger 33, Fig. 8, into the bubble, after the mould has been closed about it and it has been blown into contact with the mould. Blades 35a, which may be spherically recessed underneath, trim the top of the moulded article. The plunger may be raised before or after operation of the blades. Low and then high pressure air may be used successively to expand the bubble. The extrusion head. the moulds and the pinching members may be operated as described in Specification 564,350.