baber/WOPTO huggingface dataset:
Patent GB-1121523-A (GB)
Title: Electroacoustic transducer
Inventor: MERKULOV LEV GRIGORIEVICH
IPC: G10K11/02
Filed: 1965-07-23
Abstract: 1,121,523. Ultrasonic probes. LENINGRADSKY FILIAL VSESOJUZNOGO NAUCHNO - ISSLEDOVATELSKOGO INSTITUTA ELEKTROMEKHANIKI. 23 July, 1965, No. 12180/65. Heading H4J. An ultrasonic probe comprises a damping cover block 1, an active element 2 (e.g. a piezoelectric or magnetostrictive element) and, optionally, one or more intermediate layers 3, 4. Ultrasonic vibrations are sent by element 2 into, or received from, a medium 6 to be tested through a liquid contact layer 5. The thickness and material of the element 2 and the materials of the block 1 and of the contact layer 5 (and the thickness and materials of the intermediate layers 3, 4, if present) are such that the coefficient of reflection at the boundary between the element 2 (or, if present the outer surface of the lower layer 4) and the contact layer 5 is substantially zero. Multiple reflections in the contact layer 5 are substantially eliminated and in consequence the sensitivity of the transducer is substantially independent of the finish of the test surface. With an element 2 having a high electromechanical coupling coefficient, e.g. barium titanate, the parameters of the associated electrical circuitry are taken into account. This is unnecessary with material, e.g. quartz, having a low electromechanical coupling coefficient, not greater than about 0.001. Layers 3 and 4 may be of epoxy resin and steel respectively. The members 1 to 5 are held in a metal casing.(7), Fig. 2 (not shown), furnished with a lead (8) for connecting the element 2 to a circuit supplied from a high frequency generator, or to a circuit for extracting electrical signals from the transducer when it receives back ultrasonic waves.
Patent GB-1212553-A (GB)
Title: Apparatus for separating oil from a mixture of water and oil
Inventor: VELD CORNELIS IN T
IPC: B01D17/02
Filed: 1968-03-13
Abstract: 1,212,553. Separating oil and water. C. in't VELD. 13 March, 1968 [14 March, 1967], No. 12197/68. Heading B1D. A mixture of oil and water is introduced via pipe 5 into a hollow float 2 open at the bottom only and able to rise and fall in a tank 1; formation of a supernatant oil layer 10 causes float 2 to rise until the oil can leave through pipe 6. As described, water is supplied from. below the water-line 21 of a ship by pipe 7 and enters tank 1 via the annular space between sleeve 3 and spigot 4. Settled-out water leaves through pipe 11, any entrained oil drops collecting on the surface of a filter tube 12 to form a layer which eventually rises; filter 12 is of nylon pile fabric, the pile facing the interior float 2. A valve 13 in oil-discharge pipe 6 is controlled by a piston 14 with an extension 16 engaging the top of float 2. The apparatus may be used to treat the bilge water of a ship .before discharge, or connected into the cooling circuit of a ship's propulsion machinery.
Patent GB-200624-A (GB)
Title: Improvements relating to planing or like machines
IPC: B23D1/18
Filed: 1922-05-01
Abstract: 200,624. Symes, W., Gayter, R., and Metropolitan-Vickers Electrical Co., Ltd. May 1, 1922. Planing.-A planing or like machine particularly suited to cutting slots in the rotors of turbo-alternators, comprises two oppositely disposed side columns 6 transversely adjustable on a bed 3 provided with a reciprocating table 4 and carrying oppositely disposed clapper boxes 8. As shown on the left of the Figures each clapper box comprises a slide 9 adjustable by a screw 15 and having a clapper 12 mounted between cheeks 11 on the support 10. In a modification, shown on the right of the Figures the clappers are pivoted within the ribbed portions 14 of slides 9 mounted on opposite sides of a wedge member 13 integral with the column 6.
Patent GB-847662-A (GB)
Title: A coffee infusion preparing machine with hydro-compressor
IPC: A47J31/24
Filed: 1957-04-15
Abstract: 847,662. Electric heating. BELTRAMI, A., [trading as V.A.M. VETRARIA AMBROSIANA MILANO]. April 15, 1957 [April 23, 1956], No. 12241/57. Class 39(3). [Also in Groups VI and XXV] In an espresso coffee machine, the boiler 3 and cylinder 31 are supported on a platform 2 forming part of a base member and are detachably secured by a pivot 21 on an upstanding part 2 of the base member which engages a seating 23 on the boiler wall and a half ring 24 embracing the cylinder whose ends 27, 28 engage in grooves 29 in the platform. As shown, boiler 3 rests on a spiral electric triangular section resistance 4 with terminals 5 and 6 inserted in pins 7, 8 which co-operate with a plug 9 mounted centrally in a spring biased concave reflector 12. A bayonet fitting for a filter cup in which powdered coffee is placed is provided on the lower part of cylinder 31 which communicates with the boiler through apertures 31 which are uncovered when piston 33 is lifted to draw in water which is expelled through the filter cup when the piston is lowered.
Patent GB-544942-A (GB)
Title: Improvements in decalcomania papers
IPC: B44C1/175
Filed: 1940-08-01
Abstract: 544,942. Transfers. McLAURIN-JONES CO. Aug. 1, 1940, No. 12462. Convention date, Aug. 10, 1939. [Class 100 (ii)] Transfer paper for printing transfers of the "slip off" type, comprises a sheet of porous paper having a coating comprising a water soluble adhesive and a water-resistant adhesive which causes the coating to become tacky upon moistening. The coating may comprise hydroresin, (a form of trihydroxylethylamine abietate) as the water resistant adhesive, alcohol, a wetting agent such as Igepon T and an animal glue as the water soluble adhesive, or may consist of a mixture of resin and castor oil as the water resistant adhesive, rubber latex, glue, ammonia and water. Or a mixture of rubber, zinc oxide or lithopone, and resin dispersed in naphtha, or rubber, cumar resin, zinc oxide and naphtha may be employed as the water-resistant adhesive. The usual starch coating on the transfer paper may receive a coating of dextrine before the special coating is applied.
Patent GB-418599-A (GB)
Title: Improved metal bobbins for trawl fishing net ground ropes
IPC: A01K75/06
Filed: 1933-08-28
Abstract: 418,599. Trawling. PHILLIPS, J. W., Dormer Cottage, Laceby, Lincolnshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 28, 1933, No. 12464. [Class 48.] A ground - rope roller comprises sheet metal hemispheres 1, 2 inside each of which is welded a circular plate 3. Connecting the centres of the hemispheres and plates are tubes 5, 6, through which the ground rope passes. Alternatively swivel shackles are mounted in the ends of the tubes. The chambers 8, 9 are watertight and the central chamber 10, which is open to the sea through the tubes 5, 6, is provided with drainage holes. The roller has a renewable tread 16 which is sprung into position between the guides 14. Alternatively a tread is welded between the edges of spherical caps.
Patent GB-587624-A (GB)
Title: Process for the production of lubricating oils
IPC: C10G25/06
Filed: 1944-06-30
Abstract: Mineral lubricating oil is treated with sulphuric acid under such conditions that oil-soluble sulphonic acids having a combining weight of at least 400 are formed, then the lower sludge layer is substantially removed by settling or by centrifuging, the pepper sludge is removed by adding a finely divided adsorbent of diatomaceous or siliceous origin and settling or filtering or both, the dissolved sulphur dioxide is removed, and finally the acid-treated oil is neutralized with a polyvalent metal base.  A solution of polyvalent metal mahogany soaps in lubricating oil is thus obtained which is especially suitable for lubricating Diesel engines and aircraft engines.  The mineral lubricating oil which is treated with sulphuric acid may have been previously acid-treated, deasphalted, dewaxed or extracted with solvents such as ketones, nitrobenzene, phenol, cresol or chlorex or may be a distillate or a neutral or a bright stock or a mixture of these. The sulphuric acid must be of at least 100 per cent. strength and the total quantity employed may be used either in a single application or may be split into a series of applications with intermediate batch or continuous settling of the sludge formed during the treating process.  A single strength of sulphuric acid for all of the applications may be used or weaker acid may be used for the early treats or sludge from the final treats may be used for the first treats in a countercurrent system of treating.  When treating oils or high viscosity with sulphuric acid, a diluent may be added, for instance a hydrocarbon or other organic liquid, while sulphonated extracts from other mineral lubricating oils may be added when treating lighter oils.  The adsorbents mentioned are tripoli, finely ground silica, finely ground carborundum and the filter aids known under the Registered Trade Marks "Celite," "Filter Cel" and "Dicalite."  The polyvalent metal base may be an oxide, hydroxide or carbonate, for example of magnesium, calcium, barium or strontium although basic compounds of tin, nickel and cobalt are also mentioned.  Instead of the base itself, a compound which on hydrolysis or decomposition yields an oxide, hydroxide or carbonate, particularly metallo-organic compounds such as calcium, magnesium or aluminium alcoholates, may be used. The base may be added either in the form of a dry powder, aqueous solution or suspension or dissolved or dispersed in an alcohol such as methyl, oleyl or octadecyl alcohol, or a naphtha or lubricating oil.  Alternatively the oil containing the sulphonic acids may be filtered through a bed of the basic material.  Any water or solvent may be removed after the neutralization while additional lubricating oil may be added before or after the neutralization or removal of the water or solvent.  Other additives such as oxidation inhibitors may also be incorporated.
Patent GB-163987-A (GB)
Title: Table drive for presses and the like
IPC: B21D28/08
Filed: 1921-05-02
Abstract: 163,987. Kummel, O. May 22, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Metal-sheet feeds; spacing racks and like bars. -Quincunx feeds for sheet metal, cardboard, &c. punching, stamping, printing. and like presses are effected by a table 20, Fig. 5, carrying the work, moved transversely on a table 21 which is moved longitudinally by gearing and clutches operated by stops on the table 21. A transverse feed somewhat less in length than the distance between successive punchings &c. takes place at the end of the longitudinal feed in either direction, and is effected by gearing 19, 17, 15, 14 and a clutch KIV from a shaft a which is intermittently rotated at each operation of the press by a crank, connecting- rod 36, Fig. 4, friction ratchet 35, and gears 31, 32, 33. The longitudinal feed is effected by the shaft a through gears 2, 4, Figs. 5 and 6, one of which is fixed thereto by a clutch KI, and gears 3, 5 on shafts b, c which carry loose gears 6 - - 9, either 6 and 9 or 7 and 8 being fixed to their shafts by clutches KII, KIII on a lever 7a to transmit the drive to a gear 10 or 11, on a shaft d, gear 21, and rack 13 on the table 21. For spacing according to Fig. 1 from a to g, the gears 2 and 6 are clutched, at g the clutch lever 7<a> is reversed by a table stop so that the drive is through gear 7 and gives a half-feed which, with the transverse feed, produces a movement to h, here the clutch KI is reversed and the feed from h to o is effected through the gear 8, at o the lever 7<a>, and at p the clutch KI is reversed, producing the required movements. For spacing according to Fig. 2, the only difference is that at g the clutch KI is reversed, and a half feed in the reverse direction is given through the gear 9 and at h the lever 7a is reversed and whole feeds from h to n given through the gear 8. To move the lever 7<a> at h, Fig. 2, i.e. just after a reversal of direction, a spring stop 52, Fig. 3, on the table is shaped so that on the forward stroke it rides over a bowl 51a on a lever 51, but on the reverse stroke it moves the lever 51 and by segments 51<b>, 50<a> the levers 50 and 7a. The stop at the other end acts directly on the lever 50 in the ordinary way. At the end of the operation clutches KV and KVI are opened to stop the drive and release the transverse feed, and the slide 20 is returned by hand. If feeds according to Fig. 2 only are required, the clutch KIII is omitted, and whole feeds in the forward direction and whole or half feeds in the reverse direction are obtained. To ensure accurate spacing, stop-bars are used. and at the end of each feed the drive is released by an adjustable fixed stop 32 engaging a tail of the ratchet 35. The feed is controlled and recoil prevented by a brake 60, Fig. 5.
Patent GB-1377595-A (GB)
Title: Method of treating wastewater
IPC: C02F3/34
Filed: 1973-03-15
Abstract: 1377595 Treating waste water with yeast HITACHI Ltd 15 March 1973 [21 March 1972 29 March 1972 19 June 1972 19 July 1972] 12559/73 Heading C1C Pollutants, e.g. surface active agents, metals and dyes, are removed from waste water by contacting the water with yeast (any species) to adsorb the pollutants and then separating the yeast. The process may be carried out by passing the waste water through a column, packed with yeast or by mixing the waste water (optionally with agitation) with yeast in a first container and then into a separator. Separation may take place in a settling basin, by filtration or by centrifuge.
Patent GB-354400-A (GB)
Title: Improvements in and relating to tins or other receptacles
IPC: B65D41/28
Filed: 1930-10-21
Abstract: 354,400. Tins &c. PICKUP, H., Wey. croft Lodge, Arterberry Road, Wimbledon, and HARPIC MANUFACTURING CO., Ltd., 2, Staple Street, Borough, both in London. Oct. 21, 1930, No. 12571. [Classes 66 and 125 (iii).] The mouth of a tin or like receptacle is fitted with an end-piece or diaphragm having a restricted opening 3 adapted to be closed by a cork or plng 4, and being formed with a seating 5 for a lever lid 6. The diaphragm is depressed at 2 and the' lever lid formed with a raised portion 7 to provide clearance for the cork or plug. The other end of the tin may be formed with a wide filling opening closed by a lever or other lid.
Patent GB-543066-A (GB)
Title: Improvements relating to compositions for the treatment of the hair
IPC: A61K8/41
Filed: 1940-08-06
Abstract: 543,066. Hair - waving. TIRACCHINI, V. E.. Aug. 6, 1940, No. 12636. [Class 15 (ii)] A lotion for use in hair-waving comprises triethanolamine in solution to which may be added a substantial proportion of sodium sulphide and small proportions of caustic soda and sodium carbonate.
Patent GB-668034-A (GB)
Title: An improved navigational aid
IPC: G01C21/20
Filed: 1950-05-19
Abstract: 668,034. Navigational instruments. DUPUY, M. P. T. May 19, 1950 [May 19, 1949], No. 12673/50. Class 97 (ii). A navigational aid for determining distances and bearings comprises a transparent grid Fig. 3, e.g. in the form of lines on a transparent base or constructed of wires, representing, to a particular scale and with reference to a common origin, families of lines composed respectively of orthodroms or great circles E represented by parallel straight lines, parallels of latitude represented by concentric circles or curves L, distance curves d giving equal distances in degrees along the great circles, and azimuth curves Z giving azimuths of the circles reckoned from a pole, in combination with a chart, Fig. 2, prepared by gnomonic projection to the same scale as the grid, and on which the grid may be superimposed. As shown in Fig. 3, the grid is of rectangular shape of greater length than width, and the scale in the direction of the width is reduced so that the curves L are elliptical instead of circular.
Patent GB-773200-A (GB)
Title: Improvements in or relating to waveform generators
Inventor: PUGSLEY DONALD JOHN DAVEY
IPC: H03K3/12
Filed: 1954-05-03
Abstract: 773,200. Pulse mixing circuits. PYE, Ltd. May 3, 1955 [May 3, 1954], No. 12800/54. Class 40(6) Figure 1 shows a trigger-pair two stablestate circuit which is used as a pulse mixing stage. Negative going short duration pulses, Fig. 2 (a) and (b), which define the leading and trailing edges respectively of a train of short duration pulses are applied at A and B to the grids of discharge-tubes VIB, VIA respectively so as to periodically change the state of stability of the trigger circuit and produce positive output pulses across load R as shown in Fig. 2(d). Longer duration negative pulses, Fig. 2(c) are periodically applied to the grid tube VIB at C so that during their incidence tube VIB is maintained non-conductive and the short pulses of Fig. 2(a) and (b) are ineffective. Thus longer duration output pulses are interspersed on the output waveform or terminal D as shown in Fig. 2(d) all the pulses in the train having a substantially constant amplitude. The control grids are connected to earth via diodes M1, M2, as described in Specification 717,849. The circuit may be used for generating the line blanking pulses in a television waveform and mixing them with the frame blanking pulses.
Patent GB-311084-A (GB)
Title: Wheel mountings for motor vehicles
IPC: B60G3/01
Filed: 1928-05-02
Abstract: 311,084. Alvis Car & Engineering Co., Ltd., and Clarke, G. T. Smith-. May 2, 1928. Springs, arrangement of; guiding vertical play. -A wheel mounting for motor vehicles comprises a vertical stem 3 carried on a short wheel axle 4 and mounted endwise free in a bearing at the end of an axle beam 1, a cylindrical housing 2 on the beam 1 containing a coil suspension spring 10 bearing on the short axle, and a motion-damping member interposed between the stem and the wall of the housing. The stem 3 is guided by a spring-abutment flange 7 and also by a tubular member 5 slidable in the housing 2. The stem 3 above the flange 7 carries a disc 11, around the periphery of which is mounted a split spring ring 12 bearing frictionally upon the interior of the housing 2, the ring being retained on the disc by internal flanges on the ring engaging the top and bottom of the disc. If the road wheel pivots on the stem 3 for steering purposes, the disc carrying the friction ring may be keyed to the stem, so that frictional damping is also applied to the steering movements. Alternatively, the disc may be mounted to rotate on the stem by means of plain or ball &c. bearings. The split ring may be replaced by spring-pressed segments. The frictional effect may be adjustable.
Patent GB-688884-A (GB)
Title: Improvements in the manufacture of footwear
IPC: A43B13/00
Filed: 1951-06-01
Abstract: 688,884. Leather shoe soles. LOCKITCH, M. July 19, 1951 [June 1, 1951], No. 13042/51. Class 17 (ii). [Also in Group VIII] The instep, waist, breast, and heel portions 2, 3, 4, and 5 respectively of a leather sole are cut and finished, preferably with serrated edges, by means of a shaped press knife (see Group VIII).
Patent GB-1033965-A (GB)
Title: Improvements in or relating to liquid treating apparatus
IPC: B01J47/10
Filed: 1963-04-02
Abstract: 1,033,965. Ion-exchange. PFAUDLER PERMUTIT Inc. April 2,1963 [April 11, 1962], No. 13068/63. Heading B1J. Vessel 15 is an ion exchange with porous gravel underdrain 27 and an outlet pipe 21 leading to a measuring tank 33. The pipe extends to such a level in the tank to measure a predetermined quantity of exchanger which can be regenerated.
Patent GB-290163-A (GB)
Title: Improvements in or relating to the production of open work in metal
IPC: B21D47/02
Filed: 1928-05-03
Abstract: 290,163. Dougherty, R. S. A., and Greenwell, N. May 7, 1927, [Convention date]. Expanded metal.-Openwork bars and plates are made by transversely slitting or scoring a blank at 6, Fig. 11, as by rollers 8, 7 and rolling or forging or pressing the metal, the section of the bar or of the roll pass being designed so that a variable reduction is effected across the blank section in order to open the slits. An I-beam having had its web 2, Fig. 12, transversely slit or scored may be reduced in one or more passes through a mill comprising horizontal rolls 10, 11 and vertical rolls 12. The cross-section of the web is designed according to the shape of opening required, numerous examples being given in the Specification. An openwork plate 40, Fig. 29, may be made by producing a profiled blank. Fig. 26, slitting or scoring the parts 37 of reduced thickness, and then rolling. The slitting and subsequent reduction may be effected immediately after the rolling of the blank from the ingot.
Patent GB-474789-A (GB)
Title: Venturi dust collectors
IPC: B01D47/10
Filed: 1936-05-08
Abstract: 474,789. Centrifugal dustseparators. JENNINGS, H. W. K. (Bowen Research Corporation) May 8, 1936, No. 13104. [Class 23] A dust-separator unit consists of a Venturi tube 19, 20, Fig. 3, provided with vanes 22 at the end 19 to whirl the entering gas, so that dust is separated and discharged by centrifugal force through an opening in the vicinity of the throat. The opening may be a longitudinal slit 18 with one edge pressed outwards as shown in Fig. 4, or it may be an annular gap formed where the discharge pipe fits inside a skirt on the throat. A separator may be built up with a number of units in one structure with an inlet 13, Fig. 1, and a clean gas outlet 14 ; the ends of the tubes are of rectangular shape so that they fit closely together. A dust hopper 11 is arranged beneath the structure and an outlet 12 permits the escape of the gas which passes through the slots 18 with the dust. Partitions 24, 26 are arranged to form channels through which the separated dust passes to the hopper 11. Blades 28 may be arranged in the upper part of the hopper. In a modification the discharge opening 18 for separated dust from each Venturi tube is surrounded by an enclosed casing with a valve controlled discharge opening, so that the interior of the casing is not subject to atmospheric pressure. The gas may be supplied to the Venturi tubes through scrolls which impart a whirling motion to it, and discharge scrolls may convey the gas to cyclone separators.
Patent GB-978267-A (GB)
Title: Process for the production of unsaturated aliphatic nitriles
IPC: C07C/
Filed: 1961-04-12
Abstract: In the preparation of unsaturated aliphatic nitriles (C3 or C4) by reacting an aliphatic olefine with ammonia and oxygen in the presence of a catalyst, the ammonia and olefine are fed in such proportions that the pH value of the aqueous phase of the reaction product is at least 8, in order to reduce the rate of polymerization of the product e.g. acrylonitrile.  A volume ratio of olefine to ammonia of at least 1.2:1 is maintained with an ammonia conversion of 96% or less.  A catalyst described is bismuth and molybdenum oxide supported on silica and contained in externally cooled tubes at least 5 metres long with an internal diameter of at least 20 mm.  A high linear flow of at least 35 cm per second, at between 1 and 10 atmospheres pressure and 350-500 DEG C. is used. Examples describe the treatment of a propylene-propane mixture to produce acrylonitrile, and isobutylene to produce methacrylonitrile with hydrogen cyanide, acetonitrile and acrylonitrile.