baber/WOPTO huggingface dataset:
Patent GB-1046887-A (GB)
Title: An apparatus and a method for growing a crystalline body
IPC: C30B15/10
Filed: 1964-09-23
Abstract: A monocrystal 16 (Fig. 2, not shown) is pulled from a melt in an inductively heated crucible 12 provided with a tapering projection 13 having a groove 14, pulling being completed after the lowest point in the surface of the melt is below the top of the projection.  The crystal 16 is rotated during pulling.  The top of the projection may have a diameter of 10 mm.  The crystal may be of semi-conductor material or aluminium.
Patent GB-344956-A (GB)
Title: Improvements in or relating to floor coverings
IPC: D06N7/04
Filed: 1929-12-19
Abstract: 344,956. Compound sheet materials. KENYON, N., 274, Western Bank, Sheffield, and SPEN RUBBER WORKS, Ltd., Walkley Lane, Heckmondwike, Yorkshire. Dec. 19, 1929, No. 38899. [Class 140.] A floor-covering material consists of a backing 5, made by vulcanizing a mixture of rubber and wood flour, united to a layer of rubber 6 by vulcanizing without the aid of rubber solution, the backing having integral portions 7 which extend through the rubber layer to the tread surface. As described, the backing is made by partially vulcanizing a mix consisting of 20 parts wood flour, 2 parts rubber, and 6 parts sulphur. A perforated sheet of partially vulcanized rubber, containing sulphur for completing its vulcanizing, is placed on the backing and the double sheet is pressed hot to force the backing through the perforations and complete the vulcanization. The perforations may be countersunk as in Fig. 2 or Fig. 3, or the backing may be formed with the projections 7, and these may fit the perforations or they may be forced through an unvulcanized rubber layer which is spread on the backing.
Patent GB-1421907-A (GB)
Title: Steam generating plants
IPC: F22G1/00
Filed: 1972-08-23
Abstract: 1421907 Superheating steam UNITED KINGDOM ATOMIC ENERGY AUTHORITY 13 Aug 1973 [23 Aug 1972] 39315/73 Heading F4A In a steam generating plant having a stainless steel superheater 2 for effecting heat exchange between liquid metal and steam an injector 3 is provided for recirculating a fraction of the superheated steam leaving the superheater 2 through a branch line 4 to the inlet side of the superheater to provide latent heat for evaporating water droplets in the wet steam. A steam drum 1 receives water coolant from an evaporator (not shown) and is connected to the superheater 2 for heat exchange with liquid sodium supplied from a sodium-cooled nuclear reactor (not shown). Relatively wet steam flows from the steam drum 1 through a nozzle 8 of the injector and since the pressure at the nozzle exit is lower than the pressure in the superheater outlet 5 a fraction of the superheated steam leaving the superheater 2 is recirculated through the branch line 4 and a housing 7 of the injector 3.
Patent GB-1255244-A (GB)
Title: Cyanine dyestuffs
Inventor: FICKEN GEOFFREY ERNEST
IPC: G03C1/18
Filed: 1969-08-06
Abstract: 1,255,244. Carbocyanine dyes. ILFORD Ltd. 3 Aug., 1970 [6 Aug., 1969], No. 39431/69. Heading C4P. [Also in Division G2] The invention relates to dyes of the formula wherein R 1  and R 2  are alkyl 1-4C or together form -CH 2 -, one of R 3  and R 4  is -Z-SO 3 H where Z is a methylene chain and the other is alkyl 1-4C, R 5 -R 8  are H 1  halogen, alkyl or alkoxy, Y is S or Se and X is an anion and the corresponding anhydro dyes where X is OH.
Patent GB-1375194-A (GB)
IPC: B60S1/58
Filed: 1972-06-12
Abstract: 1375194 Supply circuits for vehicle window heaters LUCAS ELECTRICAL CO Ltd 12 June 1972 [24 Aug 1971] 39529/71 Heading H2H A circuit for controlling the supply of power to a vehicle rear window heater 27 comprises a multivibrator connectable to a battery 10 via a switch 14, a variable resistor 23 for controlling the mark-space ratio of the multivibrator and a relay having a winding 24 which is energized when the multivibrator is in one state, the winding operating a contact 26 connected in series with the heater. The variable resistor 23 may be combined with the switch 14 and when the multivibrator is in a state such that a transistor 19 conducts, the relay is energized to close the contact 26 thus supplying power to the heater 27. Closure of the contact 26 also enables a lamp 31 to be energized at full brilliance via a diode 28. When the multivibrator is in the other state, the contact 26 is open, switching off the power to the heater and energizing the lamp at reduced brilliance via a resistor 29.
Patent GB-1085554-A (GB)
Title: Treating fibres and films
Inventor: GILLER SOLOMON ARONOVICH
IPC: D06M16/00
Filed: 1964-02-10
Abstract: Polyvinyl alcohol fibres and films are given antimicrobic properties by acetalation of said fibre or film with an antimicrobic nitrofuran compound which is an aldehyde or which readily hydrolyses to an aldehyde in acid medium.  Specified compounds are 5-nitrofurfural and b -(5-nitrofuryl-2) acrolein or their diacetates, furacilin, furadonine and furazolidone. The polyvinyl alcohol may first be stabilized by heating to 210-220 DEG  C. for 7 to 10 mins. Acetalation is carried out with an acidic organic solvent solution of the nitrofuran compoundsALSO:Polyvinyl alcohol fibres and films are given antimicrobic properties by acetalation of said fibre or film with an antimicrobic nitrofuran compound which is an aldehyde or which readily hydrolyses to an aldehyde in acid medium.  Specified compounds are 5-nitrofurfural and b -(5-nitrofuryl-2) acrolein or their diacetates, furacilin, furadonine and furazolidone.  The polyvinyl alcohol may first be stabilised by heating to 210-220 DEG C for 7 to 10 mins.  Acetalation is carried out with an acidic organic solvent solution of the nitrofuran compounds.  The fibrous material may be used for surgical wadding, surgical suture threads, and therapeutic insoles, gloves, &c.
Patent GB-1041043-A (GB)
Title: Improvements relating to apertured concrete walls
Inventor: TURNER FREDERICK HENRY
IPC: G21C13/093
Filed: 1961-11-08
Abstract: 1,041,043. Reactor pressure vessels. BABCOCK & WILCOX Ltd. Nov. 8, 1962 [Nov. 8, 1961], No. 40081/61. Heading G6C. A nuclear reactor prestressed concrete pressure vessel has a large aperture to permit the flow of coolant gas. To compensate for the weakening of the concrete by the aperture, the latter is provided with a steel liner. The thickness of the liner is given as the product of the radius of the aperture times the ratio of the elastic moduli of the concrete and liner.
Patent GB-920548-A (GB)
Title: Fish-plate insulators
Inventor: BAINES ALEC SABIN
IPC: E01B11/54
Filed: 1960-11-22
Abstract: 920,548. Electrically insulated rail Joints. J. BURNS Ltd. Sept. 25, 1961 [Nov. 22, 1960], No. 40102/60. Class 104 (2). A railway fishplate insulator comprises a channel sectioned member 8 formed of an electrically insulating material composed of a mixture of Nylon 6 and Nylon 66 and provided with apertured projections 10 which extend through apertures 12 in a fishplate 3 or 4 and receive fishbolts 5. Washers 14 or 18 made of the same material as the member 8 fits over the ends of the projections 10 extending through the plates 3 or 4. Steel washers 15, 19 having a flange 16, to prevent rotation of the fishbolts 5 or nuts 6, are placed against the washers 14 or 18.
Patent GB-946912-A (GB)
Title: Container carriers and packages
IPC: B65D67/02
Filed: 1962-10-24
Abstract: 946,912. Packages. ILLINOIS TOOL WORKS Inc. Oct. 24, 1962 [Oct. 26, 1961], No. 40290/62. Heading B8C. [Also in Division A4] A carrier for a pair of adjacent containers having axially and radially projecting rims 16 comprises a horizontal body 22 overlying the tops of the containers, a shoulder member 30 depending from the body for engaging beneath the rims and a pair of integral corrugated elements 64, 70 having inward facing edges 56, 58 traversing the corrugation and which snap in and engage the inner surface of the rim when the body is pressed down on to the container to flex the corrugated elements upwards. Body pegs 48, 50 prevent lateral movement, while body extensions 42 and openings 28 between the edges of the corrugations aid the stacking of sets of containers. The body is made of plastics material and may have a single downward spherical corrugation and pegs on its upper face for engaging the bottoms of stacked sets of containers. Finger holds 24, 26 are provided.
Patent GB-1107387-A (GB)
Title: Improvements in apparatus for dispensing liquid or semi-liquid materials
Inventor: FULLER ROBERT WILLIAM
IPC: H01M4/04
Filed: 1964-10-02
Abstract: 1,107,387. Reciprocating pumps; forcing liquids by gaseous pressure. BAKER PERKINS Ltd. Sept. 20, 1965 [Oct. 2, 1964], No. 40336/64. Headings F1A and F1R. [Also in Division F2] A hopper 1 which feeds one or more metering pump chambers 4 under the control of a rotary valve 3 is closed and has a material supply and a fluid-pressure supply, the level of material being maintained between two sensing devices 12, 13. The pumps discharge through non-drip flexible tube valves 5.
Patent GB-1362430-A (GB)
Title: Machining apparatus
IPC: B23H7/26
Filed: 1971-09-01
Abstract: 1362430 Microscopes INSTITUTE OF TECHNOLOGY PRECISION ELECTRICAL DISCHARGE WORKS 1 Sept 1971 [7 Sept 1970] 40723/71 Heading G2J [Also in Division B3] A machining apparatus having a tool 18 and a movable worktable 11 includes an optical device for accurately determining the position of the tool 18 relative to the worktable 11, the device comprising a reflective surface 36 positioned between the tool 18 and worktable 11 for reflecting an image of a first reference point on the tool 18, a microscope 23 for viewing the reference point on the tool 18 and means defining a second reference point appearing in the field of the microscope 23. In one embodiment, an image 42a of a mark at the centre of the bottom surface 19 of a spark erosion electrode 18 is produced by two prisms 32, 33 mounted in a holder 34 which engages reference surfaces 63, 64 of the table 11. Hairlines 51, 52 on the surface 35 of the prism 32 are aligned with hairlines 54, 55 of the microscope 23 by moving the table 11 in order to produce a starting reference point. The table 11 is then moved to the position where the image 42a and the crossing point of the hairlines 51, 52 coincide, and the amount of movement of the table 11 noted. Since the distance c between the hairline 52 and the axis 43 of the electrode spindle and the distance a, b between the reference starting point and the surfaces 63, 64 are known, the precise position of the electrode 18 can be calculated. In other embodiments, the microscope is mechanically joined to the prisms 32, 33 or the prism 33 is movable towards the prism 32. The prism 32 may be omitted Fig. 5, (not shown).
Patent GB-1023535-A (GB)
Title: Improvements in or relating to anodized alloys
IPC: C22C21/08
Filed: 1964-10-06
Abstract: A black anodic oxide coating is produced on a 6063 Al-Mg-Si alloy suitable for architectural purposes by immersing the alloy in a bath containing 25-150 g./l. of sulphophthalic acid and 0.1-15 g./l. of sulphuric acid, anodizing the alloy in a first stage at a constant current density in the range 15-50 A.S.F. until a preselected voltage in the range 25-100 volts is reached, and subsequently anodizing the alloy while maintaining the preselected voltage until a black coating is obtained.  Typically the bath temperature should be within the range 7.2-29.4  DEG C. and a coating of thickness 0.3-2.0 mils may be obtained.  Prior to anodizing the alloy may be etched in NaOH solution and desmutted in nitric acid while the anodizing coating may be sealed in a near-boiling aqueous bath containing sodium lignosulphate and nickel acetate.
Patent GB-1514436-A (GB)
Title: Method of and apparatus for texturizing continuous filaments
IPC: D02G1/16
Filed: 1976-10-01
Abstract: 1514436 Impact crimping filaments ALLIED CHEMICAL CORP 1 Oct 1976 [2 Oct 1975] 40775/76 Addition to 1497176 Heading DIF Parent Specification describes directing filaments 16 in a stream of heated fluid against a barrier (e.g. belt 20) disposed in a chamber 12 to crimp the filaments, allowing most of the fluid to escape, transporting the filaments through chamber 12 by the continuous movement of a surface 20 to form a yarn plug 38 and force the filaments against the end of the plug to further crimp the filaments. The present specification discloses means 68 for contacting the filaments 16 upstream of the barrier with a further heated fluid so as to raise the temperature of the filaments.
Patent GB-1011094-A (GB)
Title: Automatic device for igniting gas cooker burners
IPC: F24C3/10
Filed: 1961-11-15
Abstract: 1,011,094. Gas burners. J. CASTELLANOS NUNEZ. Nov. 15, 1961 [Nov. 15, 1960], No. 40947/61. Headings F4F and F4T. A gas cooker burner 1 is automatically ignited by placing a cooking vessel on the burner grid 5. The weight of the vessel acts through uprights 6 and a sleeve 10 to depress an arm 11 of an L-shaped lever 17, 11 which is pivoted at 17a thus actuating a push rod 18 which opens a ball valve 19 in the gas supply pipe 27 against the action of a spring 20 to allow gas to pass to the burner. The spring 20 serves to close the valve and return the lever arm 11 to a horizontal position when the cooking vessel is removed. Simultaneously with the opening of the gas valve the arm 11 depresses a link 12 of a timing mechanism 13 causing current to be supplied to a sparking electrode 16 for a predetermined period of time to ignite the burner.
Patent GB-1402385-A (GB)
Title: Preparation of 1-butene
IPC: C07B61/00
Filed: 1973-09-03
Abstract: 1402385 Dimerisation catalyst GOODYEAR TIRE & RUBBER CO 3 Sept 1973 [2 Oct 1972] 41317/73 Heading B1E [Also in Division C5] A dimerisation catalyst comprises (1) WCl 6  or WBr 6 , (2) an alkyl aluminium halide of the formula R n AlX 3-n  where R is C 1 -C 6  alkyl, X is Cl or Br and n is 1, 1.5 or 2, and (3) a ligand comprising aniline or a derivative thereof containing up to three C 1 -C 4  alkyl nuclear substituents. The catalyst used in the Examples comprises WCl 6 , Et 2 AlCl and 2, 6- dimethylaniline. An inert solvent such as benzene or chlorobenzene may be present.
Patent GB-917257-A (GB)
Title: A method of and apparatus for cleaning gramophone records
IPC: G11B3/58
Filed: 1961-11-27
Abstract: 917,257. Cleaning gramophone records. LEPPER, W. Nov. 21, 1961 [Sept. 13, 1961], No. 41675/61. Drawings to Specification. Class 40 (2). A method of cleaning a gramophone record electrostatically comprises subjecting the record or an electrically isolated turntable to a rectified high electric potential, and applying a high potential of opposite polarity to a collector plate placed in close proximity to the record, so that particles charged to the same potential as the record are immediately attracted to the oppositely charged collector plate. In one embodiment, the plate is fixed to the lid of a gramophone and is only connected when the lid is shut. In a further embodiment, separate from a gramophone, the record is inserted through a slot in an enclosure.
Patent GB-1274689-A (GB)
Title: Preparation of benzodioxepin derivatives
Inventor: WILLIAMS HAYDN WINDSOR RICHARD
IPC: C07D321/10
Filed: 1969-08-21
Abstract: 1,274,689. 3-Oxo-benzodioxepins. CHARLES E. FROSST & CO. 21 Aug., 1969 [26 Aug., 1968], No. 41839/69. Heading C2C. 3-Oxo-benzodioxepins of the general formula wherein R is a hydrogen atom or a hydroxy, C 1-5  alkyl or C 1-3  alkoxy group, R<SP>1</SP> is a hydrogen or halogen atom or a C 1-5  alkyl, nitro, amino, C 1-3  alkylsulphonylamino, C 2-4  alkanoylamino, C 2-6  alkoxycarbonylamino, hydroxy or C 1-5  alkoxy group, X and X<SP>1</SP> are each a hydrogen or halogen atom or a C 1-5  alkyl group, R<SP>2</SP> is a hydrogen atom or a C 1-5  alkyl, phenyl, phenyl- C 1-3  alkyl, pyridyl or pyridyl-C 1-3  alkyl group and R<SP>3</SP> is a hydrogen atom or a C 1-5  alkyl, phenyl or phenyl-C 1-3  alkyl group, are prepared (i) by reaction of a catechol of the general formula with a compound of the general formula in which Y is a halogen atom and Y<SP>1</SP> is a hydrogen atom or a C 1-5  alkyl group, and, when Y<SP>1</SP> is a hydrogen atom, esterification of the obtained acid to give the corresponding alkyl ester, cyclization of the resulting 1,2-di-(cyanomethoxy)-benzene or 1,2-bis-{carboalkoxymethoxy)- benzene of the general formula respectively, wherein Alk is an alkyl group, and hydrolysis and decarboxylation of the resulting 3 - amino - 4 - cyano - 2H - 1,5 - benzodiozepin or 3 - oxo - 4 - carboalkoxy - 3,4 - dihydro - 2H - 1,5- benzodioxepin of the general formula respectively; and (ii) by reaction of a salicylaldehyde of the general formula with a C 1-5  alkyl haloacetate or a haloacetonitrile, oxidation of the resulting 2-(cyanomethoxy or alkoxycarbonylmethoxy)- 3 - R - 4 - R<SP>1</SP> - 5 - X<SP>1</SP>-6- X - benzaldehyde with peracetic acid, subjection of the resulting phenyl formate to mild hydrolysis, reaction of the resulting substituted phenol with a haloalkanoic acid derivative of the general formula and subsequent cyclization, hydrolysis and decarboxylation as in (i). 3-Benzyloxy-catechol is prepared by reaction of pyrogallol and trimethyl orthoacetate in the presence of conc. sulphuric acid, reaction of the sodium salt of the resulting 2-methoxy-2-methyl- 4 - hydroxy - 1,3 - benzodioxole with benzyl chloride and treatment of the resulting 2-methoxy - 2 - methyl - 4 - benzyloxy - 1,3 - benzodioxole with methanolic hydrochloric acid. 2-(2- Pyridyl) - 2 - (2 - carboxymethoxyphenoxy)- acetic acid is prepared by treatment of a solution of 2 - hydroxyphenoxyacetic acid in aqueous sodium hydroxide with 2-bromo-2-(2-pyridyl)- acetic acid. 2 - (2 - Hydroxyphenoxy) - acetonitrile is prepared by reaction of catechol with chloroacetonitrile in the presence of potassium carbonate. 3 - Chloro - 6 - (1 - cyanoethoxy)- phenol is prepared by reaction of 5-chlorosalicylaldehyde with 2-chloropropionitrile in the presence of potassium carbonate, reaction of the resulting 3 - chloro - 6 - (1 - cyanoethoxy)- benzaldehyde with peracetic acid in acetic acid and treatment of the resulting 3-chloro-6-(1- cyano-ethoxy)-phenyl formate with alcoholic potassium hydroxide.
Patent GB-1522176-A (GB)
Title: Apparatus for and a method of heat treating inorganic material
IPC: H05B6/78
Filed: 1975-10-14
Abstract: 1522176 Glass fibres DESMARQUEST & CEC and AUTOMATISME & TECHNIQUE 14 Oct 1975 [21 Oct 1974] 42001/75 Heading C1M [Also in Divisions H3-5] A section of the length of an elongate inorganic product 1 is displaced through a preheater 3 by support and displacement devices, e.g. rollers 2, 6 and is then further heated in a resonant cavity 7 as it is drawn therethrough by a further support and displacement device, e.g. rollers 11. As shown an alumina tube 1 is fed by rollers 2, 6, 11 through a preheater 3, e.g. a resistance heater, to raise its temperature to about 1000C and then through a microwave heater 7 which raises its temperature to 1700C for fritting. The microwave heater 7 is a tubular cavity resonator whose length is the minimum possible below which breakdown will occur. The resonator is excited in the TMmno mode to ensure energy concentration in the tube walls. In Fig. 2 not shown, apparatus for drawing filaments from glass or silica bars comprises a preheating resistor through which the bars pass to raise the temperature followed by a cavity resonator to fuse the bars so that filaments may be drawn.
Patent GB-1460208-A (GB)
Title: Power plant for an underwater vessel
IPC: F01K21/04
Filed: 1974-09-27
Abstract: 1460208 A power-plant for an underwater vessel FORENADE FABRIKSVERKEN 27 Sept 1974 [10 Oct 1973] 42187/74 Heading F1Q [Also in Division B7]  A power-plant for an underwater vessel, which may be a submarine torpedo, comprises a propulsion motor 14 driven by a pressure propellent including a steam component, a steam generator 13 for generating the steam component by mixing cooling water with combustion gases produced therein, a tank 1 for the cooling water, means 18 for supplying in a controlled manner pressurized water from the surrounding sea to the tank, condensing means 15 for condensing steam in exhaust gases discharged from the motor, means 16 for returning pressurized condensate from the condensing means to the tank and means 12 for delivering to the steam generator cooling water from the tank, the returning means and the delivering means being disposed such that in use the cooling water delivered to the steam generator substantially consists of returned condensate. As shown the tank 1 is divided into four compartments, the compartment 4 containing fuel, the compartments 5 and 6 containing pressurized water and the compartment 9 containing oxidant. The non-condensable portion of the exhaust gas is compressed by a compressor 17 to a pressure above the external water pressure. Sea water flows through a pressure regulating valve 19 which is provided with an expulsion outlet 20 and a regulator 21 for adjusting the pressure.
Patent GB-1529955-A (GB)
Title: Trocar-cannula assembly and a trocar for use in a catheter insertion assembly
IPC: A61M25/02
Filed: 1975-10-15
Abstract: 1529955 Inserting catheters DOW CORNING CORP 15 Oct 1975 [30 Oct 1974] 42194/75 Heading A5R A trocar 10 for inserting a catheter 32 into a bladder 36 consists of a solid stainless steel or polymeric cylindrical shank 12 terminating in three flat faces 16 forming exterior angles of 10-15 degrees which at their apices provide cutting edges and taper to a point, a groove 18 running from the rear centre of one face to the interior of a head 20. The trocar in use is provided within a steel cannula 24 with a wall from 0.002 to 0.005 mm thick and spaced from the trocar surface by 0.0005 to 0.005 mm., and the assembly is inserted through a centre hole of a body seal 26 and a patient's skin into the bladder, sterile water or saline solution in the bladder passing through the groove and out of the head indicating when the bladder is reached. The trocar is then removed and the catheter inserted through the cannula into the bladder. The cannula is removed and the catheter fastened in a groove in a solid block fixed to the seal, and provided at its exterior end with a three-way valve.
Patent GB-1529363-A (GB)
Title: Building panel
IPC: B32B7/02
Filed: 1975-10-15
Abstract: 1529363 Building panel DURISOL AG FUR LEICHTBAUSTOFFE 15 Oct 1975 [30 Oct 1974] 42205/75 Heading C3N [Also in Divisions D1 and B5] A building panel made from organic fibres, a binder and an inorganic material which is absorbed by the organic fibres to the extent of at least 2% by weight of the fibres and hence "mineralizes" them, comprises at least three gradually merging layers, at least one of which has longer fibres and a lower weight/unit volume of binder than at least one other layer. The specified binder is cement the fibres are 1 to 25 mm. long wood fibres and the inorganic material is aluminium sulphate. Preferably short fibres of length 2 to 8 mm. comprise a first fraction and fibres of length 8 to 20 mm. at least 80% of which are not longer than 12 mm. comprise a second fraction the weight ratio of the first to the second fraction being between 1 : 2 and 1 : 3. Moist Portland cement is added to each fraction, the first fraction having a larger proportion of cement to fibres than the second fraction. Mica and/or perlite may be added to the mixture to increase the fire resistance of the panel. In one embodiment a three layer board is formed by spraying the first fraction from a first spray head followed by the second fraction from a second spray head and further first fraction from a third spray head, so that the layers move into each other. The board is compressed whilst the cement sets. The density of each outer layer is at least 1-3 times that of the inner layer. In a second embodiment, Fig. 10, the first fraction forms the outermost and innermost layers of a 5 layer structure.  Reinforcement, lamination.-Reinforcements 6, 7 comprising glass fibres, glass filaments or a plastic or metal net may be inserted after the first and fourth layers have been deposited. Aluminium or plastics sheets, 8, 9 may be bonded to the board in the press.