baber/WOPTO huggingface dataset:
Patent GB-1190778-A (GB)
Title: Turbofan Thrust Reverser
IPC: F02K1/68
Filed: 1967-05-10
Abstract: 1,190,778. Turbofan thrust reverser. UNITED AIRCRAFT CORP. 10 May, 1967 [31 May, 1966], No. 21817/67. Heading B7G. A thrust reverser for a turbofan propulsion engine 10 located :downstream of the substantially annular outlet 26 for discharged air from the ducted fan 24 comprises a flexible baffle 32 movable between a stowed position (e.g. recess 38 on the main engine body 28) and an operative position, shown, to deflect at least some of the fan air, the baffle being moved by an actuating mechanism (e.g. hydraulic ram 40, rack 42, and pinion 43, acting on plates 34 which pivot about line 36). There may be springs 44 to assist in retracting the flexible baffle 32. The baffle 32 may be of fabric material such as canvas, metallic reinforced canvas, fibreglass fabric or flexible metallic fibre cloth. The baffle 32 may be segmented, and the segments subjected to differential movement to protect nearby aircraft structure and to reduce ground erosion. Reference has been directed by the Comptroller to Specification 1,083,623.
Patent GB-419659-A (GB)
Title: Improvements in and relating to indirectly heated cathodes
IPC: H01J1/22
Filed: 1934-07-26
Abstract: 419,659. Thermionic cathodes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. July 26, 1934, No. 21906. Convention date, July 29, 1933. Drawings to Specification. [Class 39 (i).] An indirectly heated cathode consists of a metal coating, carrying the emissive layer, applied on insulating tube inside which is secured the heating unit, consisting of a wire wound on an insulating rod and covered with a baked-on insulating paste. The heating wire may be straight, waved or twisted, and it may be bifilarly wound in a groove in an insulating tube of magnesium oxide or aluminium oxide. The insulating paste may consist of the oxide of aluminium, beryllium or magnesium, and the insulating support for the cathode proper of oxide of magnesium or aluminium on which a layer of nickel or copper may be sprayed.
Patent GB-415573-A (GB)
Title: Improvements in or relating to radio receiving installations with automatic volume control
IPC: H03G3/22
Filed: 1933-08-05
Abstract: 415,573. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Aug. 5, 1933, No. 22081. Convention date, Sept. 28, 1932. [Class 40 (v).] The output from a high frequency amplifying valve 1 is fed to a voltagedividing resistance 2, a variable tapping of which is connected to the detector valve 3 while a control valve 4 is supplied with the full voltage from the resistance 2 and provides automatic volume control potentials for the high frequency amplifiers across a resistance 5 in its anode circuit.
Patent GB-218878-A (GB)
Title: A handling device for tea and other kettles
IPC: A47J27/21
Filed: 1923-09-04
Abstract: 218,878. Webster, W., Webster, H. V., and Gallant, C. R. Sept. 4, 1923. Insulated holders with hand guards.-A device for handling kettles comprises a rigid shield 1 having attached to it a leather or other flexible handle portion 2, so that the hand may be placed between them, as shown in Fig. 4, to grasp the kettle handle, the shield protecting the hand from steam &c. As shown, the flexible part 2 is attached by rivets 3 to end lugs 1* on the shield 1.
Patent GB-636624-A (GB)
Title: Improvements in or relating to high temperature gas ducts
IPC: F23R3/04
Filed: 1947-08-11
Abstract: 636,624. Generating combustion products under pressure. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., LLOYD, P., SHILLING, W. F., BOULTER, R. A. and BROWN, J. Aug. 11, 1947, No. 22241. [Class 51 (i)] In a combustion chamber for gas-turbines a stream of air is introduced into the radially-outermost zone with a velocity sufficiently near to that of the gas in that zone as to form an envelope of cooling air which is maintained as a separate non-turbulent flow. This air is introduced through an annular passage between walls la, 7. The chamber includes a stabilizing cup 3 and primary air is introduced between swirl vanes 10 and through holes 11, 12. Other air passes between walls 1, 2 and enters the chamber through holes 25. Some air passes through throttling holes in a ring 26 and enters the chamber through holes 13 or 14 with a velocity insufficient to penetrate the gas stream. Alternatively, the downstream end of the wall 1 may be formed of metal gauze or of porous material such as sintered metal. The passage beyond the ring 26 is of decreasing cross-section. The holes 25 may be covered by a shield as described in Specification 636,623. According to the Provisional Specification additional air may be introduced through annular gaps between overlapping sections of the chamber wall. The layer of these sections may be crimped so as to fit on to the other. Specification 599,257 also is referred to.
Patent GB-373013-A (GB)
Title: Improvements in or relating to pistons for double acting internal combustion engines
IPC: F02F3/22
Filed: 1931-08-06
Abstract: 373,013. Pistons. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Maschinenfabrik Augsburg-Nurnberg Akt.-Ges. ; 7, Stadtbachstrasse, Augsburg, Germany.) Aug. 6, 1931, No. 22310. [Class 122 (i).] A piston for double - acting int e r n a l-combustion engines comprises two parts a, b having threaded sockets a<1>, bl engaging the piston-rod c and overlapping extensions a<2>, b<2> provided with packing d<1> whereby the two parts can expand freely. The outer overlapping portion may be provided with a detachable bush h to facilitate dismantling. Alternatively the inner portion may be a separate sleeve secured to its respective piston head. Cooling medium is supplied at f and discharged at g. Specification 194,769, [Class 122 (i), Engine and like cylinders &c.], is referred to.
Patent GB-240808-A (GB)
Title: Mould composition
IPC: B22C1/12
Filed: 1925-09-08
Abstract: 240,808. Pacz, A. Oct. 2,1924, [Convention date]. Mould materials, suitable for moulds for casting aluminium-silicon alloys, comprise a mixture of a silicon containing substance of high conductivity in divided form and a binding material such as clay. The conductive material may comprise iron, aluminium, calcium, or other simple or mixed metallic silicides such as ferro-silicon with 50 to 90 per cent silicon. Other materials such as sand, carbon, coke, carborundum, graphite, or powdered aluminium or other metal may be added to alter the specific gravity or conductivity or both. 10 per cent of clay may be employed.
Patent GB-736419-A (GB)
Title: Waterproof closure
IPC: A44B19/16
Filed: 1952-09-05
Abstract: 736,419. Sliding clasp fasteners.. MORNER, H. G. Sept. 5, 1952 [Sept. 15, 1951], No. 22441/52. Class 44. A fluid-tight closure comprises a pair of flexible strips 14 of elastomeric material which are substantially identical, each strip being formed with laterally extending lip portions having flat sealing surfaces 20 on the same side of the strip, and a plurality of rounded ribs 22 and a plurality of rounded grooves 24 alternating with each other and positioned between the lip portions the strip having a surface 16 on the side opposite the ribs and grooves of a width sufficient for attachment to the edges of the opening to be closed, and the ribs, grooves and flat sealing surfaces on one strip mating with complementary parts on the other strip as the strips are pressed together, the dimensions of the ribs being slightly greater than the dimensions of the grooves whereby the ribs and grooves are compressed as the strips are seated in each other. The strips may be engaged by a clasp, Fig. 4 made from sheet metal and having a centrally positioned web 32 at one end which forces the strips apart. A pull tab 30 is pivoted to the clasp and the top and bottom at the end remote from the web 32 have indentations 40 which each engage a groove 26 on one of the strips 14 to guide the clasp. Specification 536,081, [Group VII], is referred to.
Patent GB-794050-A (GB)
Title: Process of producing a nutrient liquid from coconut, and the resultant product
Inventor: DOLMAN CLARENCE D
IPC: A23C11/10
Filed: 1955-08-04
Abstract: In producing a nutrient emulsion from the desiccated endosperm of fresh, ripe coconuts, the endosperm is completely rehydrated, e.g. by water containing 1 per cent of an edible salt, preferably at a temperature not above 170 DEG  F., and the absorbed liquid is then mechanically extracted from the reconstituted endosperm.  The endosperm so extracted may be extracted a second time, and the expressed emulsions blended together.  Only sufficient water for rehydration should be used in the first treatment; in the second, sufficient water may be added to produce a suspension of the endosperm.  The residue from a second expression may be further extracted, the liquid so obtained being used for treating more desiccated endosperm.
Patent GB-826910-A (GB)
Title: Process for the purification of plutonium solutions
IPC: C01G56/00
Filed: 1945-08-31
Abstract: Zirconium phosphate, for use as an adsorbent in purifying plutonium solutions, is prepared by adding a solution containing zirconium nitrate to an excess of phosphoric acid.  The precipitate is digested in the presence of nitric acid at 90-100 DEG  C. for about one hour to convert zirconyl phosphate to zirconium phosphate.
Patent GB-262516-A (GB)
Title: Improvements in the manufacture of incandescent gas mantles
IPC: F21H1/00
Filed: 1925-09-10
Abstract: 262,516. Kilbourn, S., Martin, C. H., and Terrell, T. Sept. 10, 1925. Mantles.-A thread for closing in the bottoms of inverted mantles or the heads of upright mantles or for securing inverted mantles to their supporting rings is knitted as an additional thread in the fabric while the latter is being knitted. The thread may be brought into play at intervals, preferably for a little more than one circular row of stitches, by means of a rocking arm, a cam, and a chain in a circular knitting machine, the stitches of the fabric where the thread is introduced being preferably knitted more loosely than at other parts to facilitate slipping of the thread. When out of play, the thread passes loosely through the tubular fabric. A circular knitting machine of the kind in which the ordinary knittina is usually suspended at predetermined times while the knitting proceeds with a different thread may be adapted to knit in the thread without suspending the knitting of the main thread. The thread may be of cotton, ramie, or lustra cellulose, or a second thread of asbestos may be introduced for permanently securing inverted mantles to their rings. Fig. 1, shows a tubular fabric for inverted mantles in which is knitted once in about forty-five rows a thread a for closing the ends, the thread being subsequently cut between the knitted in parts, drawn in, tied, and the surplus end parts cut off. The samethread may be knitted in at intermediate positions for initially securing the fabric on the mantle ring. Specifications 245,891 is referred' to.
Patent GB-704194-A (GB)
Title: Process for making chlorinated indan derivatives
IPC: C08K5/02
Filed: 1951-09-28
Abstract: 1.3.3. 6-Tetramethyl-1-(41 methyl phenyl)-indan is chlorinated by melting it at approximately 55 DEG C., subjecting the molten material to a counter current of chlorine at a temperature in the range 45-55 DEG C. approximately in the presence of a catalyst of the type which promotes nuclear substitution, recirculating the reaction mixture while subject to the counter current of chlorine and maintaining the temperature of the reaction mixture at approximately 50 DEG C. and continuing this treatment until at least one chlorine atom per molecule of starting material is introduced.  A mixture of chlorinated compounds is obtained.  The starting material has the structural formula <FORM:0704194/IV(b)/1> and can be prepared, for example, by treating alpha-methyl, para-methyl vinyl benzene with an activated earth catalyst in the absence of a solvent at a temperature greater than 200 DEG C.  In the example 1.3 3.6-tetramethyl-1-11-(41-methyl-phenyl)-indan is melted at a temperature of approximately 55 DEG C. and transferred to a chlorinator containing a nuclear promoting halogeneration catalyst, e.g. ferric trichloride; the chlorine is introduced by counter-current method while the chlorinator is maintained at a temperature of 50 DEG C. \sB 5 DEG C; the material is circulated through the chlorinator until the required amount of chlorine has reacted. The crude material, after removal of hydrogen chloride, is distilled and may be further purified by agitating it at 80-90 DEG C. with a suitable activated earth.  Specification 652,112 is referred to.
Patent GB-1094997-A (GB)
Title: Styrene production
IPC: C07C5/32
Filed: 1965-05-28
Abstract: In the catalytic dehydrogenation of ethylbenzene to styrene in the presence of steam in a plurality of spaced reaction stages with intermediate heating this heating is effected with a residence time of less than 5 seconds, a pressure drop of at most 10 p.s.i. and a skin temperature in the heater of less than 790 DEG  C.
Patent GB-189519-A (GB)
Title: Improvements in building blocks
IPC: E04B2/02
Filed: 1921-08-29
Abstract: 189,519. Marks, E. C. R., (Rogers, G. E.). Aug. 29, 1921. Building - blocks, special shapes of.-In T - shaped building- blocks having core spars 7, all the vertical walls of the block extend between the same two horizontal planes. The longer face of the block is twice the length of the shorter face, and core spaces 6 are provided in the central ribs. The abutting faces of adjacent blocks are constructed as shown to form core spaces 4 which correspond with the core spaces 6 of superimposed blocks. Dovetails 11 are provided as shown. The horizontal faces may be provided with grooves which connect with certain of the core spaces. Dovetailed grooves 12 may be provided in the overlapping faces.
Patent GB-224041-A (GB)
Title: Improvements in or relating to a device for bending and shaping wood, and the like
IPC: B27H1/00
Filed: 1923-09-13
Abstract: 224,041. Clarke, A. G. S. Sept. 13, 1923. Bending.-The wood to be bent, after being steamed, is fitted between shoes 20, 21 on a flexible steel plate 22, and one end with the plate is then clamped at 25 to a wooden former 6 which slides on a spindle 1 rotated by means of worm gearing 7. As the former rotates, the pressers 19 are successively adjusted, by means of clamps 13 on racks 12, with final screw adjustment 17. When the ends of the steel plate meet they are connected by lugs 27 and the bent wood removed from the former. Helical or spiral bending may be similarly performed. For elliptical or oval bending suitably shaped adapters are used on the former.
Patent GB-1424725-A (GB)
Title: Rotary meshing screw compressors
IPC: F16C39/04
Filed: 1973-05-15
Abstract: 1424725 Rotary positive-displacement fluidmachines DUNHAM-BUSH INC 15 May 1973 [16 May 1972] 22960/73 Heading F1F In a meshing-screw compressor axial thrusts on male and female rotors 18, 16 are balanced by pressurized oil from a gerotor pump 78 acting on pistons 56, 74, a proportion of the output of said pump forming a fluid thrust bearing between each rotor and a casing end-plate 22. The female rotor 16 is driven by an electric motor 12 and in turn drivers the pump and the male rotor 18. The output side of the pump communicates with grooves 138, 140, 150 in the end-faces of the rotors adjacent the plate 22 through a tube 102, passages 66, 68, 110, a space 112 between bearings 40, passages 114, 122, 116, 124, openings 126 in a bearing 128, and passages 142, 144, 148. Oil that has leaked to bearings 52 from the working chamber returns to the pump through passages 75, 77, 79. The pistons engage with annular seals 58,76.
Patent GB-325189-A (GB)
Title: Improvements relating to presses for printing, embossing or the like
IPC: B26F1/40
Filed: 1928-08-09
Abstract: 325,189. Link, R. P. Aug. 9, 1928. Presses, mechanical.-In a printing, embossing, or like press comprising a movable ram operated by a cam acting through a roller, the roller is supported on a bearing plate of angular cross section movable in the same direction as the ram and provided with substantially horizontal and vertical surfaces arranged so that the travel of the roller on one surface is limited by contact of the roller with the other surface. As shown applied to an embossing-press, a ram 16 is guided by vertical pillars 11 rising from a base 10 supporting a pressure-receiving bed 31 on which is mounted a removable type-carrying plate 35. Pressure is applied to the ram by cams 14 fixed on a shaft 13 rotated by turning a handle 15, a roller or rollers 20 supported on a bearing plate 17 being interposed between the cam and the ram. The rollers 20 rest on a horizontal surface 18 and are pressed against a vertical surface 19 by means of a bar 21 or roller cage supported by pivoted arms 22, the pressure being applied by springs 23 or a counterweight. When the handle 15 is reversed to release the embossing pressure, the rollers 20 move back slighty thus facilitating the movement of the cam and avoiding any tendency of the cam to become jammed in the position of maximum load. The ram 16 is raised by means of cam plates 24 fixed on the cam shaft 13 and provided with cam slots 25 engaging pins projecting from plates 28 fixed to the ends of the ram. The pressure-receiving bed 31 may have an inclined surface 30 resting on an incline 29 so that by turning a screw 32 engaging a nut 33 integral with the bed the latter may be moved longitudinally and adjusted as to height.
Patent GB-870373-A (GB)
Title: Improvements in or relating to check weighing apparatus
IPC: G01G15/00
Filed: 1956-07-26
Abstract: 870,373. Electromagnetic switches. SAXBY, R. N. Oct. 23, 1957 [July 26, 1956], No. 23078/56. Class 38 (5). [Also in Groups XVIII and XXXVIII] Apparatus for correcting the action of an automatic feed weigher as a result of check weighings, (Groups XVIII and XXXVIII), ineludes means for calculating the average and the spread of a succession of weight errors involving the use of switches employed to count pulses. As shown, such a switch comprises a row of bifurcated spring contacts (seen edge-on in Fig. 7) carried by a rack bar 84 and movable therewith over contact strips 117. The rack is raised and lowered by pawls 90 actuated by the respective magnets 85 and 86. The armature 87 of each magnet also carries a forked member whose prongs 99, 100 engage a toggle switch (not shown) which breaks a contact each time the magnet is energized. A release magnet 106 serves, when energized, to disengage a detent arm 103 from the rack so that the latter falls under gravity to its lowest position, a spring 111 absorbing the shock of descent and a normally open contact 113 being made. For horizontal mounting, the rack may be returned to its basic position by spring means.
Patent GB-316874-A (GB)
IPC: H01B11/04
Filed: 1929-07-26
Abstract: 316,874. Siemens - Schuckertwerke Akt.-Ges. Aug. 3. 1928, [Convention date]. Cables with artificially modified capacity. - In order to reduce cross-talk or to balance the loading- section capacities of submarine cables, supplementary wires, stranded with. or over, the main wires of the cable are used as balancing condensers. Several condenser wires may be connected in parallel or otherwise combined so as to alter their capacities. In the construction shown, the core 1 of a submarine cable is covered with a layer 2 of condenser wires which are cut off at different lengths to give different capacities so, that connection of the two main wires to con-- denser wires may give very exact balancing.
Patent GB-734157-A (GB)
Title: Improvements in or relating to ceramic rotor blades for axial flow turbines, compressor and pumps
IPC: F01D5/28
Filed: 1953-08-21
Abstract: 734,157. Turbine blades. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.- GES. Aug. 21, 1953 [Sept. 4, 1952], No. 23168/53. Class 110 (3). In a ceramic rotor blade for an axial-flow gas turbine, compressor or pump, the supporting surfaces 3 on the blade root are each coated with a foamy, porous protective layer 5. The layer 5, which consists of a glaze or other ceramic mass, is applied before the ceramic blade is fired and may be applied, as by scattering or brushing, over an initial layer of compact glaze. Local compressive stresses occurring at the surfaces 3 cause crushing of the edges of the pores of the layer 5, resulting in a closer and more extensive fit with the corresponding surface of the rotor disc. Specification 664,986 is referred to.
Patent GB-1435492-A (GB)
Title: Rocker operated electric switches
IPC: H01H23/12
Filed: 1972-05-17
Abstract: 1435492 Snap-action switches; actuating devices for switches J A CRABTREE & CO Ltd 9 May 1973 [17 May 1972] 23172/72 Heading H1N In a rocker operated switch in which a moving contact 23 is operated by a spring-loaded plunger in a bore in the rocker 13, the crosssectional dimensions of the plunger and bore in the plane of movement of the rocker allow an increment of angular movement of the plunger additive to that of the rocker during operation of the switch. As shown, moving contact 23 pivots on dimples 27a and the plunger terminates in a point 17a. The greater angular movement of the plunger is achieved by the plunger being of constant cross-section along its length and the bore widening towards its mouth, e.g. it may be of tapered oval shape. In the closed position shown, end 17a rests on contact 23 on one side of dimples 27a and the plunger is against the side of the bore. As rocker 13 is moved clockwise it pushes the plunger so that end 17a moves along contact 23 until it is over dimples 27a. Further movement of rocket 13 pushes end 17a along contact 23 until end 17a moves past dimples 27a and the spring loading the plunger snaps constact 23 open from fixed contact 20 and the plunger moves against the opposite side of the bore. Further movement of rocker 13 allows the spring in the bore to urge end 17a further down contact 23. Thus the plunger travels a greater angular distance than the rocket 13. The bore may be of constant cross-section and the plunger tapered, or both may be of constant cross-section with a lateral clearance, the spring loading the plunger being centred by a peg on the blind end of the bore. The rest of the switch is as that described in Specification 921,819.
Patent GB-465857-A (GB)
Title: Improved means for warming the windshields and interiors of motor vehicles
IPC: B60H1/00
Filed: 1936-08-24
Abstract: 465,857. Preventing dimming of windscreens ; heating vehicles. ROBINSON, H. S. Aug. 24, 1936, No. 23257. [Class 20 (iii)] [Also in Group XIII] A device for heating the windscreen of a vehicle to prevent dimming, or for warming the interior of the vehicle, comprises a radiator fed with hot water from the water jacket of the engine 10 and supplying hot air to the screen or to the interior of the vehicle through a foraminous cover 5 hinged to the radiator casing and supported by the windshield rail 3 with an opening between it and the forward wall of the casing. The casing is secured to the instrument panel and extends the width of the screen, the radiator units being placed at right-angles to the length of the casing. A control valve 9 for the radiator is provided.
Patent GB-799155-A (GB)
Title: Improvements in or relating to retaining rings and to the coupling of shafts in housings by such rings
IPC: F16B21/18
Filed: 1956-07-27
Abstract: 799,155. Circlips; internal clamps. WALDES KOH-I-NOOR, Inc. July 27, 1956 [Aug. 9, 1955], No. 23272/56. Classes 44 and 89(2) An open spring- ring 10 has an oval or elliptical body whose major axis is at right-angles to a centre-line passing through the central enlargement 11 of the ring-back, and between the enlarged ends 12, 13. The ring is assembled transversely into a groove 21 in a shaft 20, and the shaft is then passed axially into a bore 34 in a housing 30. The bore-mouth is flared to contract the ring until it can open into a groove 31 in the bore-wall, thus interconnecting the shaft and housing. The enlargements 11...13 bear against the bottom of the shaft-groove and, as the ring is contracted, the ends 12, 13 move around the groove-bottom.