baber/WOPTO huggingface dataset:
Patent GB-1086354-A (GB)
Title: Preparation of colourless crystals
IPC: C30B11/10
Filed: 1964-09-21
Abstract: In the preparation of colourless monocrystals or polycrystals which have the formula LnAO3 where Ln is a trivalent ion of a rare earth element (defined as an element having an atomic number between 57 (Lanthanum) and 71 (Lutecium) inclusive) and A is one of the trivalent ions Ti3+, V3+, Cr3+, Al3+ and Ga3+, which have a crystalline structure analogous to or resembling that of perovskite, and which are obtained from a homogenized powder allowed to crystallize by the application of Verneuil's method, oxidizable ions capable of displaying a valency higher than 3 and having no absorption band (or few absorption bands) in the visible spectrum are incorporated together with the ions Ln and/or A in the powder; these incorporated ions subsequently are oxidized into their highest valency state to give colourless crystals, such oxidation taking place either during the application of Verneuil's method to form crystals from the powder or after the application of Verneuil's method when the crystal may be reheated in air or in oxygen at a temperature between 500 DEG  C. and 1500 DEG  C.  But for the incorporation and oxidation of these ions, crystallization of the powder would give coloured crystals.  Incorporation of the oxidizable ions may be effected either by using a solution of appropriate salts capable of yielding one or more of the ions V5+, Mn4+, Mo6+, Ru4+, Ce4+, Tb4+, W6+, Re6+ and Ir4+, or by mixing with the homogenized powder appropriate oxides capable of yielding one or more of the ions Ti4+, Zr4+, Nb5+, Hf4+, Ta5+ and Th4+.  Reference is made to Specification 1,042,586, in which Specification is described Verneuil's method of crystal formation.
Patent GB-284418-A (GB)
Title: An improved manufacture of shaped masses such as briquettes
IPC: C22B1/24
Filed: 1926-11-08
Abstract: 284,418. Dicker, S. G. S., (Malmbrikett Aktiebolaget). Nov. 8, 1926. Electrodes are made from a mixture of crushed ore, carbonaceous material, limestone or quartz, and tar or molasses or both, with or without the addition of a small proportion of salt; they are dried at about 150-300‹ C. for 1-3 hours.
Patent GB-1037256-A (GB)
Title: Process for producing polyesters
IPC: C08G63/82
Filed: 1963-07-17
Abstract: Polyethylene terephthalate is made by (1) effecting an esterification or transesterification reaction between terephthalic acid or an ester thereof in the presence of an esterification catalyst, (2) adding to the resulting ester phosphorous or phosphoric acid or an ester thereof (e.g. a trimethyl, triethyl or triphenyl ester), and (3) polycondensing the ester in the presence of stannic chloride as catalyst.  The esterification catalyst may be calcium acetate, zinc acetate, cobaltous acetate, cobaltous formate, cobaltous terephthalate, cobaltous benzoate, cobaltous chloride, cobaltous nitrate, cobaltous carbonate, cobaltic borate or an ammonium cobaltic chloride complex.  The cobalt compound may be used together with Li, Na, K, Ca, Cd, Zn, Sr, Ba, Mg, La, Pb, Nd, Pr, Er, Mn, W, Fe or Ce or an oxide, hydride or salt thereof (e.g. a chloride, borate or acetate).  The stannic chloride may be used together with antimonous trichloride, antimonous acetate or titanium dioxide.  The initial reaction mixture may contain one or more ester-forming reactants, e.g. isophthalic acid, sebacic acid, adipic acid, msodium sulphobenzoic acid, propylene glycol, diethylene glycol or a polyethylene glycol.  The reaction mixture may also contain titanium dioxide, carbon black, silicic anhydride, a phthalocyanine pigment, caustic potash, monomethyl potassium terephthalate or tetraethyl ammonium hydroxide. Examples describe reacting ethylene glycol with terephthalic acid, dimethyl terephthalate or a mixture of dimethyl terephthalate and dimethyl isophthalate.
Patent GB-1386229-A (GB)
Title: Internal combustion engine including a misfiring detector
IPC: F01N3/20
Filed: 1973-06-14
Abstract: 1386229 Purifying I C engine exhaust gases; indicating engine misfiring NISSAN MOTOR CO Ltd 14 June 1973 [17 June 1972 (2)] 28358/73 Heading FIB An electronic computer 6 compares the number of current pulses produced by an ionization detector 11 in the path of exhaust gases from the combustion chamber 3 with the number of pulses from an engine-driven speed sensor 17 and when the ratio of the number of speed pulses to the number of ionization pulses is less than a predetermined value produces an output signal. The detector 11 produces pulses only when combustion occurs in the chamber 3, the gases resulting from misfiring in the chamber resulting in no current in the ion-gap of the detector. The computer output signal may operate a relay 21 in the circuit of a warning lamp 19 and a buzzer 20 or in the circuit, Fig. 4 (not shown), of solenoids (34, 48) operating valves (33, 47) in the exhaust system and a secondary air supply system. The exhaust system valves (33) control flow paths from the exhaust manifold 8 to a catalytic or thermalreactor (32) and a silencer 10 arranged in parallel, the solenoid (34) when energized operating the valves to prevent exhaust flow through the reactor. The secondary air valve (47) connects the outlet of an air pump (42) to its inlet and blocks a pipe (43) leading from the pump to a nozzle (45) in the manifold 8 when the solenoid (48) is energized.
Patent GB-1072555-A (GB)
Title: Improvements in and relating to chromium
IPC: C22B1/02
Filed: 1964-07-10
Abstract: <PICT:1072555/C1/1> In roasting chromite ore with a sodium carbonate by depositing a mixture comprising chromite ore and a sodium carbonate in a layer on a horizontal rotating hearth in a furnace, directing burning gas into a space in the furnace above the layer to heat the furnace, and feeding air into the space above the layer to oxidize the chromium of the ore to the hexavalent state, the major portion, and preferably substantially all, of the air is fed below the burning gas but above the layer.  The air and burning gas preferably are directed transversely to the direction of rotation of the hearth.  The oxygen content of the gas immediately above the layer of mixture preferably is held above 5% by volume.  The mixture preferably also contains lime, for example dolomitic lime, and may advantageously comprise chromite ore, lime, soda ash and sodium bicarbonate.  The roasting may take place in furnace 10, a vertical sectional view of which is illustrated in Fig. 1.  In the lower portion of annular heating chamber 11 is annular table 12 supported on trunnions 32 which roll on floor 34 or on rails disposed in the floor.  The chamber is enclosed by refractory walls 14 and 18 and by refractory roof 30 in or on which is disposed flue 36.  A feed shoot (not shown) is located above the outer peripheral edge of the hearth; at a position circumferentially spaced from the feed shoot, a discharge shoot 44 is located adjacent the inner peripheral edge of the hearth and is associated with discharge feed screw 36. Pluralities of radially spaced oxygen ports 20 and burner ports 22 extend through either the outer wall (as shown), or the inner wall, or both the outer and inner walls, as illustrated in Fig. 2 (not shown), of the chamber.  The oxygen may be supplied as such or in the form of air or oxygen-enriched air.  After discharge from the furnace, the roast may be leached with water in a single-stage or two-stage extraction to give a solution of sodium chromate; carbon dioxide may react with this solution, for example as described in Specification 882,302, to give sodium dichromate and sodium bicarbonate, which latter after separation from the solution may be used as a source of carbonate in the roasting mix.  Reference is also made to Specification 1,072,556.
Patent GB-1504400-A (GB)
Title: Process and apparatus for increasing the feed value of lignocellulosic materials
IPC: A23K10/32
Filed: 1975-07-07
Abstract: 1504400 Animal feed BOLIDEN AB 7 July 1975 [8 July 1974] 28601/75 Heading A2B Lignocellulosic material e.g. straw is contacted with aqueous alkali excess drained off, absorbed alkali allowed to decompose the material and acid or acid nutritive solution added in an amount corresponding to the residual absorption capacity of the material. Nutritive material may be added with the alkali.
Patent GB-481556-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/16
Filed: 1937-10-20
Abstract: 481,556. Cathode-ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 20, 1937, No. 28633. Convention date, Oct. 23, 1936. Addition to 472,240. [Class 39 (i)] A cathode-ray tube as claimed in the parent Specification wherein the picture is formed on an incandescent screen has this screen made of tungsten of a thickness of 1À2 microns or less. A 1 per cent addition of thoria may be used in the screen. The use of molybdenum and tantalum as screen materials is also described.
Patent GB-1163796-A (GB)
Title: Headphone Apparatus
Inventor: ROSS SAMUEL
IPC: H04R1/10
Filed: 1967-06-21
Abstract: 1,163,796. Headsets; radio receiving apparatus. ROSS ELECTRONICS CORP. 21 June, 1967 [14 March, 1967], No. 28723/67. Headings H4J and H3Q. Headphone apparatus comprises a loudspeaker 15 for producing sound audible to several persons, mounted in a housing 11 to be worn adjacent a wearer's ear, and an earpiece 20 for individual listening mounted in a housing 12 to be worn adjacent the other ear. A switch on one of the housings permits selection of either the loud-speaker 11 or earpiece 20. A transistorized radio receiver is contained in the housing 12 and has tuning and volume controls (Figs. 2, 3, not shown). The outer cover 26 of housing 12 is removable for replacing batteries. An adjustable headband 14 is provided.
Patent GB-921258-A (GB)
Title: Water-soluble dyes of the anthraquinone and perylenetetracarboxylic acid diimide series and process for their production
Inventor: WEISSAUER HERMANN
IPC: C09B62/80
Filed: 1961-08-09
Abstract: The invention comprises water-soluble dyes of the formula <FORM:0921258/IV(a)/1> where A is an anthraquinone or perylene tetracarboxylic acid diimide dyestuff radical containing at least one water-solubilizing group, R1 is hydrogen or alkyl, R is alkyl, aralkyl, substituted or unsubstituted aryl or a heterocyclic radical and n is 1 or greater than 1.  The dyes are made by acylating an appropriate dyestuff containing at least one acylatable amino group with an acylating agent yielding the radical <FORM:0921258/IV(a)/2> such as an acid chloride or anhydride.  Examples are given.  The dyes dye and print wool, silk, leather, paper, synthetic linear polyamides, polyurethanes and in particular natural or regenerated cellulose from an alkaline bath in blue, green or violet shades.
Patent GB-647990-A (GB)
Title: Improvements in or relating to apparatus for use in determining the moisture contentof textile materials
IPC: G01N27/22
Filed: 1948-11-05
Abstract: 647,990. Determining physical qualities of materials. SHAW, J. L. Nov. 5, 1948, No. 28751. [Class 37] Apparatus for determining the moisture content of textile material comprises a condenser cell consisting of an open-topped rectangular box, whose larger sides are metal plates 1, 2, covered on the inside and outside with a sheet of insulating material 3, 5, 6, 7, the remaining sides and the base being of insulating material. The box is packed with a known weight of the material to be tested, using the tool shown in Fig. 2, and the impedance of the condenser box is determined by the circuit of Fig. 3, wherein A, C is applied at F, G across the condenser box A in series with a fixed resistance C, and the voltage across the resistance C is measured. The Provisional Specification also refers to the use of a cylindrical condenser with a central electrode.
Patent GB-1473876-A (GB)
Title: Magnetic disc memory apparatus
IPC: G11B5/60
Filed: 1974-06-28
Abstract: 1473876 Magnetic disc apparatus SPERRY RAND CORP 28 June 1974 [23 July 1973] 28760/74 Heading G5R A magnetic disc apparatus comprises a closed housing 10, Fig. 1, in use filled with a gas atmosphere, a disc 27 with a magnetizable surface 28 and means 31, 32 to rotate the disc, and a magnetic read/write head assembly 70, Fig. 4, with a core and coil element 80, 81 or 82, rigidly carried by a support 77, part 82<SP>11</SP> of the core element extending from support 77 towards disc surface 28, assembly 70 also having flexure means 71, 72 coupled between the housing 10 and support 77 and including means 72 operable to produce a load force for urging support 77 towards disc surface 28, and the leading edge, relative to the disc velocity vector 78, of the part 82<SP>11</SP> of the core element having a configuration such that, in use, in co-operation with the disc, it generates a gas pressure opposing the load force of the flexure means to thereby provide a gas bearing support for the core element and its support 77. The disc 27 is supported by an arbor 29 carrying a motor rotor 31 supported within a stator by preloaded bearings 34 of a stub shaft 33 bolted at 38 to housing 10. The disc, arbor, rotor, shaft 33 and bearings 34 are removable as a unit without disturbing the bearing preloading and the static and dynamic balance of the disc, rotor and arbor. A bridge plate 45 supports eight head assemblies each with three ferrite core and coil elements, the assemblies being spaced along a spiral to define twenty-four tracks on surface 28. Each head assembly has a triangular support plate 77, Fig. 4, of aluminium alloy with core and coil elements 81, 81, 82 in slots at its corners, one end 85 of a flexure spring 71 is bonded to a bracket 73 fixed to plate 45 and the other end of spring 71 has two fingers 87, 88 joined by a cross member 89 bonded to plate 77. A second sprng 72 acts on a skid 96 on plate 77 to preload the head towards the disc with a preload force adjustable by a screw 76. This mounting is such that the head 70 tails the support relative to disc velocity 78 and has limited freedom of rotation about a roll axis 91 and about a pitch axis 92 but is rigid about the yaw axis 94. Spring 72 applies its force at the centroid of the head, which is also the centre of buoyancy during disc operation, which centre is slightly aft, relative to disc velocity 78, of the pitch axis 92 whereby the head is tilted upwards when in a retracted position to establish an initial angle of attack (α), Fig. 6 (not shown), relative to the disc during extension of the head towards the disc into the operative position. All the heads are simultaneously moved to the operative position by energization of an electromagnet 62, Fig. 1, whereby armature disc 60 is moved towards disc 27 and engages with head retraction members 55 which have springs 102, Fig. 4, acting thereon to urge the heads to the retracted position by means of feet 100 on members 55 engaging with parts 101 on springs 71.
Patent GB-880621-A (GB)
Title: Improvements in and relating to electrical circuit-breakers
Inventor: HALL JOHN SPENCER SELKIRK
IPC: H01H71/52
Filed: 1959-08-25
Abstract: 880,621. Automatic circuit-breakers; switches held set and freed mechanically. CHILTON ELECTRIC PRODUCTS Ltd. March 23, 1960 [Aug. 25, 1959], No. 28979/59. Class 38 (5). A circuit-breaker has a bridging contact c which can be pressed by a spring s against fixed contacts a. b when displaced by a guided slide d on which one end of a main lever i is pivoted at k. The other end q of the lever i normally engages with a pivoted auxiliary lever l which is normally retained in its engaging position by an abutment p on the armature o of an earth-leakage responsive electromagnet. The contacts are closed, Fig. 4, by an operating cam g which turns the lever i about its point of engagement with the lever l against the bias of a spring j. When the armature o is attracted, the lever l is released from the abutment p and turns anti-clockwise to release the end q of the lever i which is then turned about the cam g by the spring i to open the contacts, Fig. 1. The slide d may carry a plurality of bridging contacts which co-operate with a corresponding plurality of pairs of fixed contacts.
Patent GB-238111-A (GB)
Title: Improvements in shaft couplings
IPC: F16D3/62
Filed: 1924-12-03
Abstract: 238,111. Artinano, G. de. Dec. 3, 1924. Universal couplings comprise outer and inner annular transmission members b, a connected by one or more drag links each of which comprises at least two universal joints. Thus the crossed pivots e, d<1> make one joint., and the crossed pivots e, e<2> a second. The pivot bolt e, may be surrounded by resilient material c. A single link is preferably balanced by an arm on the member a. A form is described in which the outer disc is divided into two, and is held on its shaft by a screwing friction cone.
Patent GB-1244560-A (GB)
Title: Halogenated steroids and process for the manufacture thereof
IPC: A61K/
Filed: 1969-06-09
Abstract: 1,244,560. 4,7 - Dichlorosteroids. F. HOFFMANN-LA ROCHE & CO. A.G. 9 June, 1969 [8 Jan., 1969], No. 29012/69. Heading C2U. The invention comprises steroids of formula wherein R 1  is F, Cl, Br or C 1-8  alkyl; Q is oxo, OH, C 2-8  alkanoyloxy or C 2-4  1<SP>1</SP>,2<SP>1</SP>-alkylenedioxy; and M is a structure of formula wherein R 2  is H or F; R 3  is H, OH, C 1-8 alkoxy, C 2-8 alkanoyloxy, COCHF 2 , COCHCl 2  or C 1-8  alkyl; and R 4  is H, C 1-8  alkyl or C 1-8  alkylidene; or R 3  and R 4  together represent a 16α,17α- [1<SP>1</SP> - (C 1-8  alkyl) - C 1-8  alkylidenedioxy] group; X is a #<SP>1</SP> - unsaturation or a 2 - chloro or 1α,2α- methylene substituent; and n is 0 or 1; or M is a structure of formula wherein R 5  is H or C 2-8  alkanoyl; R 6  is H, C 1-8  alkyl, C 2-8  alkenyl, C 2-8  alkynyl, C 2-8  haloalkenyl or C 2-8  haloalkynyl; R 7  is H or Me; X<SP>1</SP> is a #<SP>1</SP>-unsaturation or a 2-chloro substituent; n is 0 or 1; and Y is CH 2 , CH(#OH), CH(α-OH) or CO; with the proviso that when X<SP>1</SP> is a #<SP>1</SP> - unsaturation and n is 1, then R 7  is Me; or M is a structure of formula wherein R8 is H, F, Cl or Br; R 9  is H, OH, OPO(OH) 2 , an alkali metal salt of OPO(OH) 2  or C 2-8  alkanoyloxy; R 10  is H, α-OH, C 1-8  alkylidene, α-F, α-Cl, α-CH 2 Cl, α-CH 2 F or α- or #-C 1-8  alkyl; R 11  is OH or C 2-8  alkanoyloxy; or R 10  and R 11  together represent a 16α,17α- [1<SP>1</SP> - (C 1-8  alkyl) - C 1-8  alkylidenedioxy] group; or R 9  and R 11  together represent a 17α,21- [1<SP>1</SP> - (C 1-8  alkoxy) - C 1-8  alkylidenedioxy] group; X<SP>1</SP> is a #<SP>1</SP>-unsaturation or a 2-chloro substituent; n is 0 or 1; Z is CO, CH(α-OH), CH(#-OH), CH(α-OSO 2 R 12 ) where R 12  is C 1-8  alkyl or ptolyl, or when R 8  is H and R 9  is other than H, Z may be CH 2 , or when R 8  is Cl Z may be CH(#-CI), or Z and R 8  together represent a -CH = or -CH(α-epoxy) grouping. Preparation of the above compounds is by reaction of chlorine with compounds of formula (wherein M<SP>1</SP> is as defined above for M except that no #<SP>1</SP>-unsaturation may be present) followed when required by conventional conversions of the 3-oxo group into other values of Q defined above and/or by 1,2-dehydrogenation. The inventive compounds are stated to possess progestational, cortieoid, antiinflammatory and thymolytio activities, and may be made up with carriers into pharmaceutical compositions for oral, parenteral and rectal administration.
Patent GB-464573-A (GB)
Title: Pipette without graduated scale for the automatic delivery of definite quantities of liquid and adapted to be filled by immersion
IPC: B01L3/02
Filed: 1936-10-26
Abstract: <PICT:0464573/III/1> <PICT:0464573/III/2> A non - graduated dipping pipette comprises a tube 1 closed at its lower end and expanded into a bulb 2 and provided with an aperture 4 either in the bulb or in an internal tube 3.  The device is dipped into the liquid whereby it is filled up to the level of the orifice 4, and the contents is subsequently poured out through the upper end of the tube 1 by tilting the apparatus.  The tube 3 may be tapered as shown in Fig. 7 and the orifice may be at the top or in the side thereof, or the upper part of the tube 3 may be bent downwards.  The tube may project through either the bottom or the side of the bulb 2.  The orifice 4 may be triangular as shown in Fig. 4.
Patent GB-852175-A (GB)
Title: A method of treating slaughtered animals and a device for performing the method
IPC: A22B5/08
Filed: 1958-09-11
Abstract: 852,175. Animal carcases, preserving by drying. JONSSON, O.S. Sept. 11, 1958 [Sept. 14, 1957; Nov. 30, 1957], No. 29121/58. Classes 28(2) and 49 Animal carcases 3 are given a durable surface surface by circulating hot air (500 ‹C. to 600 ‹C.) lower than 800 ‹C. round them for about 15-20 seconds. The oven 1 is supplied with hot air from an internal source or external as at 5 provided with a circulating fan 6. After drying out, remaining hair, bristles &c. are burnt off with an open flame in 5-6 seconds in another oven.
Patent GB-1202302-A (GB)
Title: Process for converting perylene-3,4,9,10-tetracarboxylic acid diimide into a pigment form having valuable tinctorial properties
IPC: C09B67/00
Filed: 1968-06-19
Abstract: 1,202,302. Perylene tetracarboxylic acid diimide. FARBWERKE HOECHST A.G. 19 June, 1968 [19 June, 1967], No. 29173/68. Heading C4P. Perylene-3,4,9,10-tetracarboxylic acid diimide is converted into a pigment form by grinding in an inert solvent at - 10‹ to 50‹ C. Suitable solvents are methanol, ethanol, isopropanol, butanol, amyl alcohol, cyclohexanol, acetone, cyclohexanone, dimethyl formamide, ligroin, cyclohexane, benzene, toluene, xylene, chlorobenzene, nitrobenzene, carbon tetrachloride or ethylene chloride or mixtures thereof.
Patent GB-285954-A (GB)
Title: Improvements in or connected with removing salts from sea water or salt water
IPC: C01D3/06
Filed: 1926-11-19
Abstract: 285,954. Wood, R. J. Nov. 19, 1926. Combinations of interdependent valves.-The supply of sea-water and of a reagent solution to precipitate salts therefrom to a vessel in which they are mixed is controlled by separate valves which can be simultaneously adjusted to vary the proportion of the liquids. The supply to a mixing tank 20 of sea-water from a source 7 and reagent from a tank 1 is controlled by cylindrical slide vlaves 6, 3, connected to a lever 30, which can be turned about a pivot 36 by a screwed spindle 45 with handle 47. The pivot is supported on a column 31 the base of which is formed as a nut on a screw 34 turned by worm gear 43 to move the pivot 36 in a slot 37 in the lever and thus adjust the extent of the relative movement of the valves.
Patent GB-1361495-A (GB)
Title: Apparatus for handling endless loops
IPC: G03B21/32
Filed: 1971-06-22
Abstract: 1361495 Cine apparatus GF RACKETT and R SACKS 22 June 1971 [17 Aug 1970] 29258/71 Heading G2E  An endless film loop system for projecting cine films includes a cartridge 10 housing a turn-table 18 on which is a loosely coiled film 28 from whose centre film 26 passes to guide 62, through a projector 44, and returns to the periphery of the coil 28. A motor 52 has a shaft 54 having a pair of rings (58), the motor (52) rotating the turn-table 18 by means of the rings 58 gripping its circumference. The speed of the motor 52 is controlled and this may be by means of film guide 62 which is mounted on a pivot arm 64. Variation in film tension due to differences in the speed of the turn-table 18 and projector 44 moves the arm and so rotates the shaft 76 against the action of return spring 84. Rotation of the shaft 76 turns the potentiometer 90 which is in the speed control circuit, Fig. 9 (not shown), of the motor 52. As shown the film 26 leaves the turn-table 18 and in so doing defines an acute angle between it and the turn-table 18. This angle may be variable and in the range 35 degrees to 55 degrees. The film 26 is guided out from the coil by means of spaced arms 30 radiating from the spindle 24. The maximum size of the coil 28 is controlled by stop 40 whose position is radially adjustable.