baber/WOPTO huggingface dataset:
Patent GB-2464842-A (GB)
Title: Determination of point of sand production initiation in wellbores using residual deformation characteristics and real time monitoring of sand production
Inventor: MESE ALI I
IPC: E21B41/00
Filed: 2008-08-20
Abstract: Predicting sand production in a wellbore (300). A first set of characteristics is determined for a formation in the wellbore, wherein determining uses a plastic model of the formation, and wherein the first set of characteristics comprises a yield surface, a failure surface, a stress total strain, an elastic strain, and a plastic-strain relationship (900). A relationship among a second set of characteristics of the wellbore is determined using an effective stress model, wherein the second set comprises a drawdown pressure, a production rate, pore pressure, a temperature and a viscosity of a fluid in the wellbore, a fluid flow pressure in the wellbore, a drag force of fluid flow in the wellbore, and a type of fluid flow in the wellbore (902). A critical total strain is determined for the formation using the first set of characteristics and the relationship (904). The critical total strain is calibrated using a thick wall test (906).
Patent GB-1415389-A (GB)
Title: Automatic supersonic flaw detector
IPC: G01N29/22
Filed: 1973-03-01
Abstract: 1415389 Ultrasonic inspection devices NIPPON STEEL CORP and HITACHI SHIPBUILDING & ENG CO Ltd 1 March 1973 [2 March 1972] 10017/73 Heading H4D A self-contained ultrasonic flow-detection system, for testing, e.g. butt welds in steel plate, comprises a truck 31 on which are mounted a group of probes 22 in a holder 23; a television camera 24 for detecting the line of the weld (or other reference line) and driving an hydraulic (or electric) servo-mechanism 25, 26 so that the probe-holder 23 and/or the truck steering is adjusted to track the weld; flow-indicating, recording and marking equipment 21, 27, 28; a power supply 29 for the truck drive and the equipment; and a reservoir 30 of complant for the probes. The weld may be detected by an electrical or mechanical device instead of by camera 24.
Patent GB-219070-A (GB)
Title: Improvements relating to loud speakers for use in wireless telephony
IPC: H04R13/02
Filed: 1923-04-13
Abstract: 219,070. Johnson & Phillips, Ltd., and Johns, W. H. April 13, 1923. Receivers fitted with horns.-Relates to loud speakers of the kind in which the diaphragm is clamped against the rim of the casing 1 by the cap 3 and also to those in which the cap, bearing the horn, is of massive construction, and consists in the combination of these features, together with the use of a casing which is also of massive construction. The cap 3 has a spigot 7 for attaching the trumpet and a flared bore 8, the lower edge of which is rounded off. It is clamped on to the diaphragm by screws 4, a shallow chamber 9 being left above the diaphragm, which is formed with radial slots for the screws. The device stands on three legs 2. The cap 3 is preferably of heavy non-ferrous metal, but according to the Provisional Specification it may be of nickel chromium steel alloy.
Patent GB-126518-A (GB)
Title: Improvements in Paper Receptacle.
Inventor: FORRESTER HAROLD JOSEPH CHARLE
IPC: B65D3/22
Filed: 1918-06-19
Abstract: 126,518. Forrester, H. J. C., (Liston, T.). June 19, 1918. Boxes &c. made from special blanks; lined &c. boxes; strengthening by corrugating; lids and covers; handles.-A paper receptacle for lard &c. is made from a single blank, a portion of which is shown in Fig. 3. The blank is wound on a mandrel, the plain portion I forming the first winding, and the portions II, III, IV, &c. following on. During the winding, projections 2 are folded inwards about the horizontal dotted lines shown, to form a closed bottom, as shown in Fig. 1, extending from vertical portions. Projections 3 are also folded inwards to abut against the bottom thus formed, and long projections 4 are infolded and serve to cover the joints of the projections 2. The layers are united by adhesive previously applied to the blank. A recess b may be embossed in the bottom, to render it taut and rigid; a bead B and vertical corrugations between it and the bottom edge are formed for strengthening purposes. The number of plies may be varied, and the last section wound may be plain. A layer C of waterproof fabric and filler strips D separated by an air space d may be interposed between the plies. A cover F with a U-shaped periphery beaded at H, H<1> may be sprung into place over a bead G and secured by adhesive; the cover may be constructed like the receptacle. A bail handle E may be provided, its ends being retained by flanged shell-pieces e, which are received during the winding operation in apertures formed in the blank.
Patent GB-535755-A (GB)
Title: Improvements in and relating to the preparation of discarded printed sheets for re-use
IPC: B41M7/00
Filed: 1940-06-11
Abstract: 535,755. Coated paper. MAYHEW, M. J. June 11, 1940, No. 10179. [Class 96] Unwanted printed or typewritten matter on paper or card is obliterated or masked and the sheet or web re-surfaced with a coating suitable for the reception of further printing &c. The obliteration may be partial or complete and may be effected by the print-receiving coating which may comprise titanium paste diluted with thinners, and may be applied by squeegeeing through a plain mesh or silk screen stencil or by pneumatic or mechanical spraying.
Patent GB-293498-A (GB)
Title: Improvement in fixed jaw wrench
IPC: B25B13/08
Filed: 1927-04-13
Abstract: 293,498. Reilly, F. C. April 13, 1927. Rigid-jaw wrenches.-In a fixed jaw wrench of the kind comprising a straight jaw face and a plurality of jaw faces parallel to the straight jaw face and arranged to form a V-shaped notch adapted to coact with nuts &c. of different sizes, the steps joining the jaw faces progressively. increase in length from the jaw face coacting with the smaller to the jaw face coacting with the larger size nuts. The wrench shown comprises a shank 1 with two heads 2, 3 each of the latter having a straight jaw face 4 and stepped jaw faces 5 - - 8, parallel thereto. The steps 9, 10, 11 of the head 2 are of increasing length and about equal to the stepped jaw faces 6, 7, 8 respectively so as to grip both sides of the nuts at the corner equally. The steps 12. 13, 14 of the head 3 also increase in length but the stepped jaw faces 5 - - 8 of that head are all about the same length. The faces of the head 2 have a greater holding power on the nut than those of the head 3, the latter having an easier gripping action in the working stroke of the wrench and an easier release action in the reverse direction. The longitudinal axis of the wrench lies between the inclined sides of the V-shaped openings constituted by the sbraight face 4 and the stepped faces, and the lines joining the comers of the steps are parallel to the wrench axis.
Patent GB-709211-A (GB)
Title: Improvements in and relating to supercharged two-stroke internal combustion engines
IPC: F02B75/18
Filed: 1951-05-01
Abstract: 709,211. Gas turbine plant. AKTIESELSKABET BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI. May 1, 1951 [March 10, 1951], No. 10234/51. Class 110(3) [Also in Group XXVII] The exhaust gases from engine cylinders a-c, Fig. 3, are led to a turbine 13 which drives a charging and scavenging pump 21 whilst the gases from cylinders d-f are led to another similar turbine compressor unit 20, (see also Group XXVII). The turbines, which may be arranged as shown or with their inlets in line with the exhaust pipe portions leading from the exhaust valves, may comprise more than one stage and each nozzle ring may be divided into two or more sectors. In one embodiment each turbine has two inlet channels 90, 91, Fig. 7, of circular cross-section which remain constant in area though differing in shape throughout their length until they become semi-circular at the nozzle ring 93. Immediately down-stream of the guide vanes 94 and turbine vanes 96 is a vaned grid 97 for straightening the gas flow, followed by a diffuser formed beween the walls 100 and 101 in the turbine casing and a ring 102 connected to wall 101 and which, by further walls 103 is divided into a number of sectors. The vanes 94, 96 and 97 are made with rounded inlet edges. The turbines are designed to conform with the formula where E is the smallest passage area of the first guide vane ring, N is the number of stages, G is the degree of reaction and Fm is the mean value of the passage area of the engine exhaust valves during the period between the opening of the exhaust and scavenging ports. The engine exhaust pipes, which decrease in section as the turbine is approached, have as small a volume as possible whilst any unavoidable bends therein are such that the radius of curvature for the mean flow curve is at least seven times the ratio between the cross-sectional area and the length of the pipe circumference. The turbines are arranged so that the ratio between the nozzle area E measured at risht angles to the flow direction and the corresponding inlet area at or before the turbine inlet is between 0.5 and 0.8 in order to avoid reflection of the pressure wave. The exhaust pipes and turbine inlet channels are insulated to reduce the heat loss.
Patent GB-1298392-A (GB)
Title: Liquid food preservation
Inventor: OKUHARA AKIRA
IPC: A23L5/49
Filed: 1970-03-04
Abstract: 1298392 Preserving liquid foods KIKKOMAN SHOYU CO Ltd 4 March 1970 10293/70 Heading A2D Liquid foods having an acidity of at least 0.05 normal are preserved by decolorizing melanoidins which are present in the foods, said decolorization being carried out by contacting the foods with one or more of the metals Al, Mn, Mg and Zn so as to permit dissolution of these metals as ions into the liquid foods. The metal may be added as a dispersion to the food, any unreacted metal being later removed by e.g. filtration. Formed metal ions may subsequently be removed by electrolysis or by the use of an ion exchange resin. The decolorization may alternatively be carried out either by coating the metal onto the inside surface of a container, which surface may be previously lacquered, or impregnating the metal in a plastics film and coating this film on the inside surface of a container, or by utilising the metal in foil form and inserting the foil into the liquid food. Examples illustrate the treatment of soy sauce, fruit juice and wine.
Patent GB-522466-A (GB)
Title: Improvements in or relating to temperature control devices for electric irons or thelike
IPC: H01H37/46
Filed: 1938-05-05
Abstract: 522,466. Thermal switches. REINGRUBER F., and REINGRUBER, J. May 5; 1938, No. 10446. [Class 38 (v)] Relates to a thermostatically controlled electric flat-iron with means to avert sluggishness of initial response. A bar 50, Figs. 1 and 2, of a material having a relatively high coefficient of expansion, e.g., brass, is located by a screw 51 at one end in a groove 42 in a soleplate 40 of an electric iron heated by an element 44. An L- shaped lever 64 is pivoted at 65 between two lugs 62 on an iron plate 60 which is fixed to the soleplate and spans the bar 50. Two Y-shaped springs 67, 68 carrying contacts 69, 70 are fixed by their arms to two bosses 63 on the plate 60, the position of the spring being controlled by a setting screw 72, while spring 67 is moved by the lever 64. With heating of the iron. rotation of the lever 64 to open the contacts 69. 70 is caused by the difference in expansion of bar 50 and the sum of the expansions of the soleplate between screws 51 and 61 and the plate 60 between screws 61 and the pivot 65. In a modification the device is. made as a unit independent of the iron. Fig. 15 shows such a device including a snap action wherein welded to a plate 120 by feet 128 of limited area is a channel-shaped member 124 which encloses but does not touch the brass bar 123 fixed by the screw 126. Relatively greater expansion of the latter causes a lever 131 carrying a contact arm 153 to rotate against a spring 133<1> about a pivot 130 on the member 124. A setting screw 160 bears on an arm 154 between which arm and the contact arm 153 is provided a spring 152 to impart a snap action to the latter's movement.
Patent GB-1218577-A (GB)
Title: Transmission gear
Inventor: NOGUCHI MASAAKI
IPC: F16H3/66
Filed: 1968-03-04
Abstract: 1,218,577. Change-speed gear. TOYOTA JIDOSHA KOGYO K.K. 4 March, 1968, No. 10472/68. Heading F2D. Variable-speed gearing for motor cars &c., giving three forward ratios and one reverse ratio, comprises a front train including two sun gears S 1 , S 2  respectively clutchable to an input shaft by clutches 2 and 1, and planet gears P 1 , P 2 , (intermeshed as shown), on a common carrier fast with the ring gear R of a rear train, the carrier P of which is connected to an output shaft and the sun S of which is fast with the sun gear S 1 , two brakes 3 and 4 being provided to hold the sun gear S 2  and the ring gear R respectively. The brake 4 may act directly on the carrier of planets P 1  and P 2 . The front and rear trains may be replaced by threeelement bevel trains, Figs. 2A, 2B and 2D (not shown). Although multi-plate friction clutches and friction band brakes are shown, other types (not further described), may be used. Function summary.-For one-way first, the clutch 2 is engaged and the near train acts alone, reaction being taken by a one-way detent 5. Engagement of brake 4 provides two-way first. To obtain second, brake 4 is released and brake 3 applied, reaction being taken by detent 5 between such release and application, and the front and rear trains then acting in compound relationship. For direct drive top, clutch 1 is engaged and brake 3 released, locking up the trains. Reverse is obtained by engaging clutch 1 and brake 4, and releasing clutch 2 and brake 3.
Patent GB-440949-A (GB)
Title: Improvements in and relating to condensers more particularly for high frequency and wireless purposes and processes for the manufacture thereof
IPC: H01G4/28
Filed: 1934-04-06
Abstract: 440,949. Condensers. POLLAK, J. E., 20, Holborn, London.-(Porzellanfabrik Kahla ; Kahla, Thuringia, Germany) April 6, 1934, No. 10475. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 9, 1934.] [Class 38 (ii)] [See also Groups V and X] A condenser for high frequency work has a thin-walled ceramic tube for dielectric, made by an extrusion process and, after firing, furnished with burnt-on coatings of noble metal to form condenser electrodes, to which connectors of cap or ring form may be attached. In a modification, one burnt-on coating may coact with a sleeve-like sliding electrode for the purpose of varying the capacity. In forming the dielectric, the tubes emerge from the downwardly directed mouth of the extrusion press and may be loaded at the lower end with an annular weight. The tubes may pass downward successively through drying, heating, and final firing tunnels preferably heated electrically. In one process, the tube 13 passes through a spray 18 of consolidating lacquer between the drying tunnels 16. In another process the tubes after emerging from the press are guided into cylindrical moulds where, the lower end being closed by pressing together the sides, compressed air is forced in at the upper to urge the tube into contact with the mould. A Specification was laid open to inspection under Sect. 91 comprising this subject-matter and also the subject-matter now contained in Specifications 440,948, 440,950 and 440,951 with, further, a description of a cylindrical condenser with dielectric of ceramic material, the inner and outer coatings of noble metal being reinforced at the ends and connected to caps soldered or shrunk on. Outer protecting sleeves of ceramic material could also be held in position by the end caps, and these might be combined with a number of concentric condenser tubes. This subject-matter does not appear in the Specification as accepted.
Patent GB-581858-A (GB)
Title: Improvements in or relating to hydraulic accumulators of the bladder type
IPC: F15B1/10
Filed: 1944-05-31
Abstract: 581,858. Hydraulic accumulators. BENDIX AVIATION CORPORATION. May 31, 1944, No. 10475. Convention date, July 22, 1943. Addition to 560,643. [Class 69 (ii)] In a hydraulic accumulator of the bladder type described in the parent Specification, the bladder comprises a moulded bag in which that portion 42, Fig. 2, preformed to the shape of the interior of the shell is of relatively stiff material and the telescoping portion 40 is of relatively flexible material. A flange 44 by which the bladder is recurved to the shell is of material stiffer than either of the other materials. The portions are made of Buna S compounds of different stiffnesses. The Specification as open to inspection under Section 91 comprises also a construction in which that portion 126, Fig. 4 (Cancelled), of preformed shape is separately moulded from the flexible portion and is rendered relatively stiff by virtue of its thickness, and has a solid metal reinforcing member 127 embedded in a curved end 129. In a further modification a coiled spring is embedded in a bead which replaces the curved end. This subject-matter does not appear in the Specification as accepted.
Patent GB-1222473-A (GB)
Title: Improvements in or relating to self-propelled street sweepers
IPC: B62D1/26
Filed: 1969-02-27
Abstract: 1,222,473. Steering road sweepers. LE MATERIEL DE VOIRIE S.A. 27 Feb., 1969 [11 March, 1968], No. 10502/69. Heading B7H. [Also in Division E1] In a motor street-sweeper having a rotary brush 1 adapted to follow the kerb of a pavement, the brush 1 is mounted on a carrier arm 2 which provides for lateral shifting of the brush relative to the vehicle, and a follower roller 7 for engagement with the kerb is arranged both to act through servo-control means on the steering mechanism of the vehicle and to effect lateral shifting of the brush 1. The carrier arm 2 pivots about a pivot pin 3 on the vehicle chassis 4, and the roller 7 is carried by a follower arm 6 which pivots about a pivot pin 5 on the arm 2. The follower arm 6 acts on the carrier arm 2 through a compression spring 8, and another compression spring 19 is interposed between the arm 2 and an abutment 20 on the chassis 4. Stops 9, 21 limit outward pivotal movement of the arms 6, 2 respectively. A lever 10 on the follower arm 6 acts through a roller 11 on the control rod 12 of a pressure reducing device 13 which controls application of fluid pressure to a ram 16 linked to the steering mechanism of the vehicle.
Patent GB-603786-A (GB)
Title: Improvements in or relating to speed changing mechanism for vehicles
IPC: B62M9/124
Filed: 1945-04-26
Abstract: 603,786. Change-speed gear. SMART & BROWN (ENGINEERS), Ltd., and SHUTTLEWORTH, A. April 26, 1945, No. 10506. [Class 80 (ii)] In a change-speed gear for a cycle, of the type where changes in ratio are effected by moving nested sprockets, slidably mounted on the wheel hub, into the plane of the driving chain, the axial movement and therefore, the distances apart of the sprockets is arranged according to functions of the sideways deflection of the chain and the widths of, and clearances between the chain and the sprocket teeth. In an embodiment of the invention, three sprockets 1, 2, 3 are secured to a ratchet ring 4 and top gear adaptor 9 mounted on the freewheel bodies 10, 11 which are in splined connection with a hub-shell 7. Movement of the sprockets to the right, i.e. to bring a larger diameter sprocket into operation is effected by a pull on a drawbolt 26 slidable in an axial hole in the wheel spindle 19. The drawbolt is connected to a cotter 40, slidable in a slot in the spindle and held in position against a thrust washer 17 by a spring 24. The cotter moves thrust washers 17, 18, flange 16 of the sleeve 15 secured between 17 and 18, and peg 13 engaging with the freewheel bodies 10, 11 to move the nested sprockets axially. A main spring 23, stronger than spring 24, opposes the pull on the drawbolt and operates to select a smaller diameter sprocket when the pull is released. In the event of failure of the mainspring, the spring 24 ensures that the largest diameter sprocket is engaged. The chain is guided on to the appropriate sprocket, and the chain tension maintained, by jockey sprockets mounted on an arm pivoted from the frame of the bicycle. Reference has been directed by the Comptroller to Specification 382,104, 416,721 and 451,722.
Patent GB-567158-A (GB)
Title: Improvements relating to filters or sieves
IPC: B07B1/48
Filed: 1944-04-18
Abstract: 567,158. Filters. WESTWOOD RIM & PATENTS, Ltd., and WESTWOOD, S. C. April 18, 1944, No. 10625/43, [Class 46] [Also in Group II] The gauze c of a sieve or filter is secured over the aperture b of the holding frame a by a metal strip d which embraces the gauze and the turned-back edges of the frame aperture.
Patent GB-869027-A (GB)
Title: Improvements in or relating to electric motor brush connections
IPC: H01R39/38
Filed: 1956-04-06
Abstract: 869,027. Brushgear for dynamo-electric machines. BLACK & DECKER Ltd., and BLIGHT, N. J. June 24, 1957 [April 6, 1956], No. 10626/56. Class 35. To remove the shock danger due to breakage of a helically-wound circular or substantially circular electrically-conductive spring 11, 12, 15, Fig. 7, which is adapted to fit on to and be in conducting relationship with the brush holder B of an electric motor, the spring is accommodated within an electrically-insulating member generally of hollow ring form and having its inner wall open to allow the spring to contact the holder. In Figs. 1 and 2 the member is in the form of a U-section shield having a tubular portion 4 to accommodate a lead-wire 13 of the spring and may be either a single piece moulding or made in separate halves. In Figs. 3 and 5 the shield body 6 and a snap-in lid 8 are made of injectionmoulded polythene and also house a suppressor 16 and terminals 17, 19 to which the brush spring wire, suppressor and motor circuit lead connections are made. The shield alternatively may be made of black polyvinyl chloride or rubber, and is applicable to fractional horsepower motors used in portable tools.
Patent GB-1132912-A (GB)
Title: Process for making high impact "styrene polymer" compositions
IPC: C08L51/04
Filed: 1966-03-11
Abstract: 1,132,912. High impact monovinyl aromatic polymers. DOW CHEMICAL CO. 11 March, 1966 [15 March, 1965], No. 10728/66. Headings C3G and C3P. A high impact normally solid, resinous, thermoplastic polymer of a monovinyl aromatic compound is prepared by uniformly incorporating in the polymer 0À5-10 parts/100 parts by weight of the polymer either (1) a copolymer of 61-86% by wt. ethylene and 39-14% propylene or (2) a copolymer of 75-96% by wt. ethylene and either (a) 25-4% of a vinyl ester of general formula where n is 1 or 2, or (b) 25-4% of an acrylate of general formula H 2 C=CHCOOR where R is a C 1-4  alkyl group, copolymers (1) and (2) having a tensile modulus of 600-15,000 p.s.i. as determined by A.S.T.M. D1530-58T. The monovinyl aromatic polymer may comprise at least 63À75% of styrene and not more than 21À25% of acrylonitrile, methyl methacrylate or α-methylstyrene and 1-15% of a polymer of butadiene, and was produced in Example (1) by blending polystyrene with a polymer prepared by polymerizing a solution of polybutadiene in styrene. The high impact polymer may also contain an antioxidant, e.g. 2,6- ditert.-butyl-4-methylphenol and white mineral oil and may be moulded into test bars or bottle caps.