baber/WOPTO huggingface dataset:
Patent GB-1367788-A (GB)
Title: Saponificationresistant polycabonates
IPC: C08G64/06
Filed: 1971-12-22
Abstract: 1367788 Bis - (hydroxyphenol)diisopropylbenzenes BAYER AG 22 Dec 1971 [22 Dec 1970] 59634/71 Addition to 1341318 Heading C2C [Also in Division C3] In Examples 1 to 8, α,α<SP>1</SP>-bis-(hydroxyphenyl)- diisopropylbenzenes which are alkyl or phenyl substituted in the o-position relative to the hydroxyl groups are prepared by reacting α,α<SP>1</SP>- dihydroxy-diisopropyl benzene with the appropriately substituted phenol. Compounds prepared are the 4 - hydroxy - 3,5 - dimethyldiethyl, and -diisopropyl - phenyl derivatives, the 2 - hydroxy - 3,5 - dimethylphenyl derivative and the 4-hydroxy-3-isopropyl, -isobutyl, and -tert-butyl-phenyl derivatives. In Example 9, the bischlorocarbonic acid ester of α,α<SP>1</SP> - bis - (4 - hydroxy - 3,5 - dimethylphenyl)-p-diisopropylbenzene is prepared by reacting the bisphenol with phosgene.
Patent GB-1449828-A (GB)
Title: Oxygen pulping process
IPC: D21C3/26
Filed: 1973-12-31
Abstract: 1449828 Pulp manufacture CANADIAN INDUSTRIES Ltd 25 April 1974 [26 April 1973 31 Dec 1973] 19794/73 and 60303/73 Heading D2W A process for making pulp comprises (a) treating lignocellulosic material in a closed reaction vessel with a liquor comprising alkali metal hydroxide with or without alkali metal sulphide at 160-195‹C for not longer than 120 minutes to provide a pulp yield of 52-65%, the pulp having a Kappa number not less than 40, (b) displacing the liquor from the lignocellulosic material with water or an aqueous alkali metal hydroxide solution, (c) treating the lignocellulosic material without prior defiberisation in aqueous suspension at a consistency of 2-30% with 2-20% by wt. of alkali metal hydroxide at 20-90‹C, (d) treating the resulting lignocellulosic material in an aqueous medium at a consistency of 3-35% with oxygen or an oxygen-containing gas for 10-120 minutes at 80-140‹C and a partial pressure of oxygen of 30-200 lbs/square inch. In a modification, the process comprises (a) treating lignocellulosic material with a liquor comprising alkali metal hydroxide with or without alkali metal sulphide at 160-195‹C for not longer than 90 minutes to provide a pulp yield of 55-65%, (b) displacing the liquor from the lignocellulosic material with water, or an aqueous alkali metal hydroxide solution, (c) treating the lignocellulosic material without prior defiberisation in aqueous suspension at a consistency of 2-15% by wt. for 0.5-30 minutes at 20-90‹C with 2-20% by wt. of alkali metal hydroxide, and (d) treating the resulting lignocellulosic material in an aqueous medium at 3-35% with oxygen or an oxygencontaining gas for 10-120 minutes at 80-140‹C and a partial pressure of oxygen of 50-200 lbs/ square inch. Deliquification may be accelerated by the addition of anthraquinone mono- or disulphonic acid, or an alkali metal salt thereof,- to the initial pulping liquor. Preferably, a magnesium salt e.g. magnesium chloride or magnesium sulphate is added to the alkali metal hydroxide of step (c) above. The oxygentreated product may be subjected to a conventional sequential bleaching process.
Patent GB-1235349-A (GB)
Title: Electrical socket
IPC: H01R13/453
Filed: 1968-12-19
Abstract: 1,235,349. Two-part couplings. MESSERSCHMITT-BOLKOW-BLOHM G.m.b.H., and SOURIAU ELECTRIC G.m.b.H. 19 Dec., 1968 [23 Dec., 1967], No. 60452/68. Heading H2E. A socket 6, with contacts 5, for mating with a plug 2 with peripheral contacts 3, is carried on a flange 15 located in an outer housing 20 by leafsprings 30 bearing on the periphery of the flange and thereby providing a measure of lateral movement, limited, however, by lugs 32 on the housing and recesses 17 in the flange. The socket is sealed to the housing by a flexible bellows 36. The plug is sealed to the socket by a gasket 8. When the plug is removed the aperture in the socket is closed by a cap 12 loaded by a spring 10.
Patent GB-1218239-A (GB)
Title: Process for the manufacture of water-insoluble hydroxybutyl cellulose
IPC: C08B11/08
Filed: 1968-12-20
Abstract: 1,218,239. Hydroxybutyl cellulose. KALLE A.G. 20 Dec., 1968 [22 Dec., 1967], No. 60765/68. Heading C3A. Alkali cellulose is etherified above 60‹ C. in a pressure vessel in the presence of at least 4 times, preferably 5-10 times, its weight of butylene oxide until the M.S. of the product is at least 0À7, preferably 0À7-3À0, the product being washed with water and, advantageously, also with petrol ether (b.p. 100-140‹ C.) to remove butylene glycol reaction products. An organic solvent or diluent may be present. The alkali cellulose may contain 0À2-0À4 p-b.w. NaOH and 0À8-1À3 p.b.w. water based on its air dried cellulose content.
Patent GB-1242140-A (GB)
Title: Constant tension supports suitable for pipes
Inventor: CIELUCH HENRYK
IPC: F16L3/20
Filed: 1968-12-20
Abstract: 1,242,140. Constant-force spring supports. BRITISH INDUSTRIAL ENG. CO. (STAFFS) Ltd. 31 Dec., 1969 [20 Dec., 1968], No. 60832/68. Heading F2S. In a spring-and-lever type constant force support for piping, one end 16 of the spring is secured to a fixed part 10 to which the lever 13 is pivoted. The connection between the lever and the spring is made by a link 27 pivoted at 51 to the lever and at 28 to a drawbar 20. The pivotal connection 28 is required (a) to be disposed between the fixed spring end 16 and the lever and (b) to be constrained so that its only permitted translational movement is in a rectilinear path coincident with the spring axis. The pivot 28 is a pin passing through the link 27 and through a clevis formation 24, Fig. 3, at the end of the draw bar. The clevis has a cylindrical periphery and the guide means for permitting only rectilinear movement are angle section members 29 secured to the fixed part 10. The sliding surfaces 30 of these angle section members are preferably PTFE coated. The support incorporates means according to Specification 1,240,670 for varying the distance between the pivot 51 and the lever fulcrum. As shown, this means 41, 43, 47 is located below the link 27, but in Fig. 4 (not shown) it is located above it. Means according to Specification 1,238,481 may be provided for varying the load arm of the lever and according to Specification 1,208,132 for changing the position of the lever fulcrum.
Patent GB-669833-A (GB)
IPC: H01M6/06
Abstract: 669,833. Batteries. MALLORY BATTERIES, Ltd. Dec. 20, 1948 [Dec. 23, 1947], No. 32832/48. Class 53] A dry cell comprises a steel container 10 having a cup-shaped cover 14 of copper, silver or bronze and a polyethylene grommet 17 and enclosing a depolarizer 11 of mercuric oxide and graphite and a negative electrode 16 of compressed amalgamated zinc powder saturated with a solution of caustic potash containing potassium zincate. The electrolyte 13 is a solution of caustic potash free from zincate and jellified with starch or sodium carboxymethyl cellulose. A styrene ring 12 separates the edges of the electrolyte and depolarizer. Specifications 590,466, 646,799 and 646,800 are referred to. The Specification as open to inspection under Sect. 91, describes a cell similar to Fig. 1, but in which the zinc electrode consists of plane and corrugated strips of zinc rolled together into a spiral. This subject-matter does not appear in the Specification as accepted.
Patent GB-674048-A (GB)
Abstract: 674,048. Valves. SUGG & CO., Ltd., W., and SUGG, B. R. Aug. 10, 1949 [Aug. 10, 1948], No. 21108/48. Class 135. In a gas burning appliance having an overheat gas cut-off valve, including a thermally released valve part, movement of means normally controlling the appliance is used to exercise the overheat valve to prevent sticking. When the pilot burner P is extinguished a bimetal strip M moves the valve V on to its seat 2 to cut off the gas to the burner F. On overheating, a bimetal strip 18 moves a catch 17 to release a striker 13 which, under the action of a spring 14, hits an abutment 11 on the valve stem 10 and pulls the valve V on its seat 3 so that the lower side of the valve acts as an overheat valve. Pilot operated movement of the valve V exercises the overheat valve stem 10 by an amount allowed by the distance between the striker abutments 15, 16. The overheat valve stem may be exercised either directly or through a lever by a cam on the rotatable plug of the main gas cock. Specification 647,047, [Group XIII], is referred to in the Provisional Specification.
Patent GB-2003065-A (GB)
Title: Improvements in the manufacture of metal strip
IPC: B21B45/00
Filed: 1978-08-24
Abstract: The invention concerns coating one side of steel strip before it is coiled for annealing so that adjacent laps of the coil do not stick together and cause wrench marks during uncoiling. The coating is applied on line in the strip mill and avoids the need for rewinding the coil at a lower tension before annealing it. The coating is a refractory particulate material such as talc or calcium carbonate and a heat fugitive adhesive binder such as paraffin oil. Steel strip 11 is wound onto a take- up coil 14 after emerging from the final work rolls 12 and 13. Before being taken up on the coil it passes a station 25 where it is dried and then treated with the binder. It then passes billy rolls 16 and 17 and a station 26 at which the refractory powder is applied in an air jet. A gas curtain and a suction hood are provided here in order to prevent contamination of the surrounding atmosphere by the powder. <IMAGE>
Patent GB-2003537-A (GB)
Title: Building construction
IPC: E04B7/00
Filed: 1978-08-29
Abstract: A building includes a plurality of adjacent roofing units 10 each comprising a pyramid-shaped main section 14, its lower edges secured to and leading down into a rectangular peripheral assembly of channel ducts 11. The corner portions of the rectangular assembly of channel ducts are supported, e.g. by piers 12, the adjacent channel ducts of successive roofing units are interconnected and the joints sealed by, e.g. a resilient split tube 24. Fascia units 13 extend around the periphery of the building, seated on the external walls 30, and having a lower flange 29 which obviates the need for lintels. The roofing units 10 are tied down to the external walls 30 by turnbuckles 19. Alternative roof constructions of pyramidal form are disclosed. <IMAGE>
Patent GB-2030091-A (GB)
Title: Cycle steering system
IPC: B62K21/18
Filed: 1978-09-26
Abstract: The handlebars A of a cycle are inserted into a tubular crown of the front fork and are fixed either by welding, brazing or by a cyanoacrylate type adhesive. Alternatively the bars and crown may be threaded, the bars being screwed into the crown and located by a locking nut or dowel. By fixing the handlebars in this position the handlebar stem is eliminated, and the front fork stem and steering head tube of the cycle frame are shortened so that the cycle may have a substantially triangular main frame portion B. <IMAGE>
Patent GB-2005164-A (GB)
Title: Separating gas mixtures
IPC: B01D59/20
Filed: 1978-10-03
Abstract: A gaseous, e.g. isotope, mixture is separated into light and heavy fractions by introducing the mixture into a vortex chamber 15, e.g. tangentially via inlet apertures 19, so as to establish a rotational flow and extracting at least one of the gas fractions separated under the action of centrifugal force. One form of the apparatus may include two concentric tubes 11, 12, the inner one of which bounds the vortex chamber 15, one of the gas fractions being withdrawn from the chamber solely in the radial direction through apertures 17 in the inner tube wall. Another embodiment has three concentric tubes defining an annular vortex chamber between two collecting chambers for the gas fractions which communicate with the vortex chamber through apertures respectively in the inner and outer wall of the vortex chamber. <IMAGE>
Patent GB-2032383-A (GB)
Title: Earth working machine
IPC: E02F9/02
Filed: 1978-10-17
Abstract: An earth working machine has an extendible chassis with pair-wisely arranged front and rear wheels and a machine body (10) including a pivotable and/or rotatable boom for mounting a working implement. The machine body (10) has a base (8) which is hingedly connected to the chassis along a transversal axis (9). Passage of an obstruction (20), Fig. 8 (not shown), is achieved by retracting the chassis to bring the centre of gravity forward of the front wheels, supporting the machine with the boom (13) and making the angle between the machine base (8) and the chassis great enough to bring the chassis vertical, as shown, whereupon extension of the chassis causes the rear wheels to project over the obstruction. The machine can then be hauled over the obstruction using a winch mounted on the base (8). The centre of gravity (G) may alternatively be shifted by bodily movement of the base (8) on the chassis, while the chassis may have tracks. <IMAGE>
Patent GB-2012057-A (GB)
Title: Improvements in and relating to electrical measuring apparatus
IPC: G01R17/00
Filed: 1978-12-08
Abstract: Electrical measuring or indicating apparatus utilises an operational amplifier A1 as the main component of its measuring circuit and a further operational amplifier A2 is connected to the main operational amplifier to produce an output which when added to the output of the measuring circuit improves the accuracy of the apparatus by mitigating the effect of the inherent error voltage at the input of the main operational amplifier. Preferably the further operational amplifier is of unity gain or else its gain is chosen in relation to other circuit components so that the gain of the apparatus as a whole is unity. <IMAGE>
Patent GB-2037702-A (GB)
Title: Security cash bag
IPC: A45C1/10
Filed: 1978-12-20
Abstract: A security cash bag has one wall extended upward to form a flap 4 having a row of apertures 5 which, when the flap is folded over to close the mouth of the bag, registers with rows of apertures 2 in the bag walls, and is provided with inserts 11, 15 of a material more rigid than the material of the bag, the inserts 11, 15 being arranged in the one wall and the flap respectively and being formed at intervals with points of weakness so that when the flap is in its closed position the inserts 11, 15 are superimposed with their points of weakness in register to enable the closed upper end of the bag to be folded concertina-fashion. <IMAGE>
Patent GB-2024162-A (GB)
Title: Cartons
IPC: B65D5/54
Filed: 1979-02-07
Abstract: A carton blank is formable into a carton having an openable and closeable lid defined by doubled-over portions 22, 24, 28, a top 20 and sides 30 and having respective engaging portions 10', 56 on a lid-forming part 28 of the blank and on a carton body-forming part 40 of the blank, said engaging portions being so formed that their engagement or disengagement results in a readily discernable audible click when the lid is closed or opened. <IMAGE>
Patent GB-2017815-A (GB)
Title: Metering pump for milk or the like
IPC: B67C3/00
Filed: 1979-03-30
Abstract: A pressureless milk pump comprises a piston and cylinder device with an outlet valve 20 in the cylinder and an inlet valve 34 in the piston 28 the valves being valve members guided by actuating rods 26, 36 which extend parallel to the cylinder axis and pass in sealed manner through an end of the cylinder remote from the outlet valve. The piston is guided by at least two guide rods 56 parallel to the actuating rods and also passing in sealed manner through the same end of the cylinder. <IMAGE>
Patent GB-2022783-A (GB)
Title: Bistable Electrically Actuated Valve
IPC: F16K31/08
Filed: 1979-05-30
Abstract: An electrically actuated valve comprises a coil 7, an armature in the form of a cylindrical permanent magnet 13 capable of occupying two stable positions (a), (c) and slidable on a valve-actuating stem 11 so as to lift the valve closure 4 when the magnet reaches an abutment 12 on the stem 11, towards the upper end of its stroke. Movement from one position to the other is effected by two current-pulses of opposite polarities. <IMAGE>
Patent GB-2022437-A (GB)
Title: Water treatment unit
IPC: C02F1/52
Filed: 1979-06-06
Abstract: A water treatment and storage unit comprises a water tank 2 supported by a column 1 consisting of superimposed settling and filtration tanks 3,6. A preferred unit has a single column 1 consisting of a plurality of settling tanks 3 above a single filtration tank 6, the tanks having a common peripheral wall 7 which bears the weight of the water tank 2 and the base of one tank serving as the cover of the tank below. Rain water is supplied by pump 9 to the settling tanks 3 which operate in parallel, water therefrom being fed through valved pipes 25, 31, 32 to the upper portion of filtration tank 6. The water descends through a particulate filtering medium 33 and is then fed to the upper portion of water tank 2 through valved pipes 35, 36, 37. The medium 33 may be backwashed with water from tank 2, air being injected by venturi 48. Each tank may have a base whose axial cross section is an inverted W. Chemicals for sterilization and flocculation may be injected at 11. <IMAGE>
Patent GB-2052124-A (GB)
Title: Display apparatus
IPC: G09F11/15
Filed: 1979-06-28
Abstract: Slats (5) are hinged together at adjacent lateral edges to form an endless belt formed so that any slat can be removed by an endwise sliding motion, the belt passing round guides (7) provided at the top and bottom of a frame (1), and having finger holes (13) to enable the belt to be rotated on the guides. The frame has a section (25) which can be swung out of the way to enable a sat to be removed and another one inserted; means (27) being provided to hold the remaining slats in place during sat removal. Each sat has an elongate flap 15 in which one or more lengths of a marker strip may be inserted to mark time divisions representing deployment of a work force on different tasks, for example. <IMAGE>
Patent GB-2036554-A (GB)
Title: Anthraquinones for use in therapy
IPC: A61P35/00
Filed: 1978-06-21
Abstract: The anthraquinones of formula (I> <IMAGE> wherein R is an alkylene group having 1 to 4 carbon atoms and preferably is an ethylene group, and pharmaceutically acceptable salts thereof preferably the acetate or diacetate, are useful in treatment of the human body for therapy of cancer, especially of leukaemia.
Patent GB-2039572-A (GB)
Title: Apparatus for preparing ski slopes
IPC: E01H4/02
Filed: 1979-11-16
Abstract: Apparatus for preparing ski tracks comprises a plane (20) for tearing up and mixing the covering of snow. The plane (20) is articulated for free pivoting through a traction gear (14) on a horizontal shaft (18) disposed transversely to the direction of travel (A) and in front of the plane (20). This shaft (18) is supported on a sled (1) disposed in front of the plane (20). In order to be able to select the lateral inclination of the track to be prepared largely independently of the lateral inclination of the terrain covered, the said shaft (18) and with it the traction gear (14) and the plane (20) can be tilted with respect to the sled (1) about a tilting axis (7) substantially parallel to the direction of travel (A) by means of guide rods (8). <IMAGE>
Patent GB-2063308-A (GB)
Title: Coating metals and alloys
IPC: C09D1/02
Filed: 1979-11-23
Abstract: A coated metal or metallised article, bears an adherent coating comprising an alkali metal silicate and chromium oxide which adheres directly to a non-oxidised metallic surface of the article. Such coatings have an improved resistance to aging. In order to apply such a coating, a coating solution comprising an alkali metal silicate and a chromium containing compound is applied to such metallic surface and the article is heated to convert the solution to a hard adherent coating. A preferred coating solution comprises sodium silicate, potassium dichromate and a wetting agent. In examples, aluminium and copper are coated.
Patent GB-797099-A (GB)
Abstract: 797,099. Endoscopes. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Oct. 12, 1955 [Oct. 13, 1954; Sept. 30, 1955], No. 29104/55. Class 81 (2). [Also in Group XX] A light-conducting rod 1 for an endoscope has a reflecting coating 5, 6 over a short length at each end and is mounted inside a fluid-tight sheath 2 by seals 7, 8 between the sheath 2 and the coating 5, 6, a space filled with dry gas being maintained between the sheath 2 and the rod 1. The end 4 of the rod 1 by which light enters is at right angles to the axis of the rod 1, there being no chamber or inset portions. The other end 3 of the rod 1 is cut to a bevel. The bevel may have a reflecting coating, a portion of a lateral wall being left uncovered for the transmission of light. The rod is mounted in an endoscopic tube 9 which may have mirrors 11, 13 or prisms for directing the light emerging from the rod 1. The rod 1 is made of fused silica with a silver reflecting coating. A flexible section of the rod 1 may be provided, a paper sheath being interposed between the outer sheath 2 and the rod. Specification 720,141 is referred to.
Patent GB-2042641-A (GB)
Title: Jet Pump Apparatus for Conveying Solids in Liquid
IPC: F04F5/10
Filed: 1980-01-03
Abstract: Liquid carrying solids, e.g. fish, is drawn into an axial bore of a jet pump by liquid discharging through an annular nozzle 1. Some liquid passes through a screen 5 to a chamber 4 which is connected to a pump 6 feeding pressure water to the nozzle 1. <IMAGE>
Patent GB-2067674-A (GB)
Title: Rotor blade for a gas turbine engine
IPC: F01D5/18
Filed: 1980-01-23
Abstract: The blade (17) has cooling fluid passages (22, 23) and means for blanking off the passages comprising a part-cylindrical chordwise bore in which engages a correspondingly part-cylindrical pin (27). The pin is mechanically retained in the bore, but may also be metallurgically attached, and it may have holes (31, 32) drilled through it to communicate with the passages and form dust vent holes.   <IMAGE>
Patent GB-2045993-A (GB)
Title: Improvements in Stringed Musical instruments
IPC: G10D3/22
Filed: 1980-03-28
Abstract: A stringed musical instrument, e.g. an electric guitar, comprises a body portion 11 and a neck portion 12 which may be readily engaged and disengaged from the body portion. The neck portion which is a metal casting with a wooden fretboard carries the strings, 28, a head 24 with tuning devices 26, a bridge 21 with tremelo 22, and electro-magnetic pickups 23. The strings may be pretuned before the neck is inserted into the body. The body portion carries all the usual pickup controls and consists of a metal core with a plastics cover, the space between core and cover being filled with polyurethane foam. Connectors 48 are provided so that engagement of the neck portion with the body portion connects the pickups to the controls and a releasable locking device 70, 76 is provided to retain the body and neck assembled. <IMAGE>
Patent GB-2048427-A (GB)
Title: Fluid hoses
IPC: B32B27/34
Filed: 1980-04-01
Abstract: This invention relates to composite flexible hoses for hydraulic fluids, particularly for use in automobile clutch systems. The hose comprises an inner tube of nylon 6 or nylon 66 covered by a sheath of nylon 11 or nylon 12. The inner tube provides the major structural component of the hose and the sheath provides a shield against chemical attack from the environment in which the hose is located. <IMAGE>
Patent GB-2054901-A (GB)
Title: Three Dimensional Images
IPC: G03B35/00
Filed: 1980-05-09
Abstract: According to this invention, the means for producing a three- dimensional reproduction of an object or scene, as viewed from around a 360 DEG  arc, comprises a series of photographs 2 taken from around a circle which are reproduced anamorphically and mounted within a cylindroid 6 composed of positive- focus cylindrical lenses, with an image behind each lens to produce an isomorphic virtual image, at a pre- calculated conjugate-focus, which superimposes in register with the virtual-images produced by adjacent lenses. The object so represented is observed through the group of lenses nearest the viewer, and appears to remain stationary when viewed from around the cylindroid through a succession of groups of lenses, but varies according to the angle of view therein represented. <IMAGE>