baber/WOPTO huggingface dataset:
Patent GB-811793-A (GB)
Title: Removable drill pipe protector
IPC: E21B17/10
Filed: 1956-04-26
Abstract: 811,793. Drillings wells. BAKER OIL TOOLS Inc. April 26, 1956 [Sept. 26, 1955], No. 12866/56. Class 85. A drill pipe protector comprises an electric collar 10 split longitudinally at 12, and a sleeve 11 embedded within the collar and having disconnectible coupling means at opposite sides of the split. The sleeve is made in two parts each having knuckles 15, 16 at opposite ends A hinge pin is engaged in the Knuckles opposite the split, and a cotter pin 24 is engageable with the knuckles at the split.
Patent GB-1446222-A (GB)
Title: Carboxylic acid derivatives and processes for their manufacture
IPC: A61K31/445
Filed: 1973-08-20
Abstract: 1446222 Carboxylic acid derivatives CIBAGEIGY AG 20 Aug 1973 [24 Aug 1972] 12948/76 Divided out of 1446221 Heading C2C The invention comprises compounds of the formula wherein one of the groups R 1  and R 2  denotes a hydrogen or a halogen atom or a lower alkyl, lower alkanoyl, lower alkoxy, free or hydroxyl, free or acylated amino group, trifluoromethyl or nitro group and the other denotes a saturated cycloaliphatic radical, X 2  denotes a free, esterified or amidized carboxyl group and n denotes an integer from 1 to 3, with the proviso that if R 2  denotes cyclopentyl or cyclohexyl group, n is 1, and salts thereof. The term lower indicates radicals containing up to 7 carbon atoms. The compounds may be prepared by hydrolysing or alcoholizing the corresponding compounds wherein X 2  is CN, by oxidizing the corresponding compounds wherein X 2  is hydroxymethyl or acyl, by reacting the corresponding compounds where X 2  represents one equivalent of a metal atom or Mg-halogen with carbon dioxide, an ester or half-ester of carbonic acid or a carbonic acid halide ester, or by reducing a compound of the formula The groups representing X 2  may be converted to others of the groups representing X 2 . The compounds may be used in pharmaceutical compositions.
Patent GB-1509892-A (GB)
Title: Strip winding machine
IPC: B65H81/00
Filed: 1974-03-25
Abstract: 1509892 Making wound components on a frusto-conical core HIGH TEMPERATURE ENGS Ltd 25 March 1975 [25 March 1974] 13163/74 Heading B8G  An apparatus for helically winding a strip or strand of flexible material on a frusto-conical portion of a rotatable core comprises means for mounting and rotating a core about an axis, a carriage mounted for reciprocal movement longitudinally of the core, a feed arm for feeding a strip or strand to the core and being mounted on the carriage for swinging movement about an axis transverse to the core rotation axis, and co-ordinating drive means for causing longitudinal movement of the carriage and swinging movement of the feed arm to increase an angle that the strip or strand makes to the rotation axis of the core as the carriage is moved in the direction towards the smaller end of the frustum and to continue to swing the feed arm in the same angular direction during return movement of the carriage by the co-ordinating drive means towards the larger end of the frustum. Mandrel.-Aluminium or titanium alloy and members 12a, 12b of a tubular rod, Fig. 1, are mounted on a rod, a soluble mandrel is formed on the rod, and a resin-impregnated tape, e.g. of glass or carbon filaments, is wound over the mandrel and end members. Longitudinal plies of the tape may be first laid on the mandrel. Winding machine.-Carriage 18 rolling on rails 19 is moved in both directions, over the length of the central cylindrical portion of mandrel 12, by lead screws 26. When frustoconical mandrel end portions 12a or 12b are reached, a carriage member is raised by a pneumatic ram to disengage from the screws and to engage, with a channel-shaped part, one. of three lines of freely rotatable rollers 31 on a turrett 29 continuously rotated about a vertical axis by a worm on one lead screw. The turrett rotates the carriage member in the carriage to move the carriage along the end portion, to pivot attached, .dependent tape spool 21, and to pivot attached tape guiding head 23 so that the tape is laid over a helical path on the end portion both towards and away from the frustum apex. The raising of the carriage member urges brake pads against the underside of the rails 19. The mandrel may be hand rotated.
Patent GB-651888-A (GB)
Title: Improvements in or relating to regulating systems for alternating current systems
IPC: H02P9/14
Filed: 1948-05-13
Abstract: 651,888. Automatic power factor control systems ; exciting dynamo-electric machines. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 13, 1948, No. 13167. Convention date, May 28, 1947. [Classes 35 and 38 (iv)] [Also in Group XXXVII] The power factor of a circuit is maintained constant by a synchronous motor, the excitation of which is controlled by a series wound exciter operating on the unstable part of its characteristic. The output of a potential transformer 17 is connected across a reactor 18 and across two rectifier bridges 11, 12. The common terminal of the bridges is connected to a tapping on the reactor 18 via a resistor 20 across which is applied a voltage proportional to the line current. A change in the power factor unbalances the voltages across the rectifier 11, 12 thereby unbalancing the opposed control fields 9, 10 of the series wound subexciter 7, the load on which is adjusted by a resistor 8 so that the generator 7 is operating over the unstable portion of the characteristic. Hence the small variations in control field result in a large change in the excitation of the synchronous motor 1. Specification 629,586 is referred to.
Patent GB-964137-A (GB)
Title: Improvements in or relating to break detectors for webs
Inventor: RALPH FREDERICK WALLACE
IPC: B65H26/02
Filed: 1962-04-05
Abstract: 964,137. Feeding webs. WITTON-JAMES Ltd. June 6, 1963 [April 5, 1962], No. 13180/62. Heading B6B. A paper web is passed over a pipe 1 rotatable on a shaft 2, the ends of which are supported in horizontal slots 6, and the tension of the web holds the shaft, against the action of compression springs 9, adjustable by screws 10, in contact with cells 8. If the web breaks, the springs move the shaft away from the cells, which produce an electric signal to apply a brake to the web unwinding reel, and stop the web-handling machine.
Patent GB-132113-A (GB)
IPC: H01M4/50
Abstract: 132,113. Kaplan, M. L. Nov. 2, 1918. Manganese dioxide.-A depolarizer for electric batteries is prepared from recovered manganese " which consists of manganese dioxide containing basic impurities, by treating the impure dioxide with sufficient nitric acid to convert the manganese dioxide and the impurities into nitrates. The damp mass is then heated to a temperature sufficient to decompose the manganese nitrate into manganese dioxide but to leave the remaining nitrates unaffected. These are then removed by extraction with water and filtering. The process may also be applied to the product obtained by oxidizing manganese carbonate by hot air. Specification 10541/12, [Class 53, Galvanic batteries], is referred to.
Patent GB-132606-A (GB)
IPC: B23G1/22
Abstract: 132,606. Florin, J. F. S. Sept. 17, 1918. Screwing. - A tool for screwing a tube A has an expansible guide-piece 3 fitting inside the tube and preferably split to be expanded by a cone 2, bolt 1, and nut 5. The guide-piece has a guide - screw on it engaging with a nut 0 clamped to the die 7, the die 7 being rotated by a spanner 8 and being either square or octagonal.
Patent GB-132963-A (GB)
IPC: D03D45/20
Abstract: 132,963. British Northrop Loom Co., (Northrop Loom Co.). Jan. 2, 1919. Weft, cutting. - The shuttle feeler 22, Fig. 4, is provided with fixed and movable thread cutters 29, 31, Fig. 6, and a thread clamp 41, and also with a slack-thread producer 43, 49, Figs. 4 and 6, to act upon the welt between the device 29, 31, 41 and the cloth selvedge and draw sufficient thread from the outgoing filling carrier to enable the shuttle feeler to return to its front inoperative position without breaking the thread between the device 29, 31, 41 and the selvedge. The slack-thread producer 43, 49 comprises a lever pivoted on the stud 32 and provided with a slot 51 engaged by a pin 52 on the movable cutter 31. After the shuttle feeler has been swung rearwardly into the position shown in full lines in Fig. 4, on indication for weft-replenishment, the advancing lay engages the down-turned end 50 of the lever 49, 43 and turns it in an anti-clockwise direction, against spring action, so that the weft is drawn from the outgoing bobbin b, as shown in Fig. 6, and is clamped against the clamp 41. By means of the pin 52, the cutter 31 is also moved into position ready to cut the thread, a blade 34 on the transferrer rock-shaft engaging the shoulder 33 on the cutter 31, which then cuts the thread as the shuttle feeler moves frontwardly. The lever 43, 49 next rocks clockwise under spring action and releases the weft end, which is held between the cutter 31 and clamp 41 until it is cut by the temple-cutter. The cutter 31 is recessed to receive a pin on the shuttle feeler 22, whereby its movement is limited. The parts 31, 41 are fully opened during the rearward movement of the shuttle feeler to operative position, by a one-way switch 55 engaging the pin 52.
Patent GB-217024-A (GB)
Title: Improvements relating to stair rods, curtain rods or the like
IPC: A47G27/06
Filed: 1923-05-18
Abstract: 217,024. Herbert, Kershaw, & Co., Ltd., and Russell, H. R. May 18, 1923. Knobs and terminal ornaments.-The end pieces of stairrods, curtain-rods or the like are formed with shanks 7 engaging the ends of the tubular main portion 3 of the rod which are turned down to engage mechanically the shanks, which may be provided with tongues or projections 8. Fig. 7 shows a circular tubular rod, the end 15 of which is turned down to engage a portion 16 of the knob which is reduced in diameter.
Patent GB-633501-A (GB)
Title: New dyestuffs of the anthraquinone series
IPC: C09B9/02
Filed: 1947-05-17
Abstract: Leuco-sulphuric esters of phthaloylacridone dyes of the formula <FORM:0633501/IV (c)/1> where R is acyl or aryl which may contain a vattable grouping are made by treating the dye in presence of a metal, the corresponding leuco compound, or a metal salt of the corresponding leuco compound, or a complex compound comprising the metal salt of the corresponding leuco compound, in the presence of an organic amide having the hydrogen atoms attached to nitrogen replaced by hydrocarbon or substituted hydrocarbon radicals, with or without the addition of diluents, with sulphur trioxide or with an addition compound of sulphur trioxide with an organic amide or tertiary base, or with any substance actually used in practice for, or known from the literature to be capable of, forming sulphuric esters from vat dyestuffs in the presence of metals or from leuco compounds, or metal salts thereof, or complex compounds comprising the metal salts thereof.  Amides specified are dimethylformamide, diethylformamide, dimethylacetamide, tetramethylurea, and diethyl-p-toluene-sulphonamide.  Diluents specified are acetone and acetronitrile, and metals specified are zinc, copper, and iron.  The products may be mixed with alkali metal carbonate, dextrin, or urea. In examples: (1) methylchlorsulphonate and iron powder are reacted in presence of dimethylformamide and acetone with the products obtained by condensing 6 - amino-31 : 41 - phthaloylacridone with 2 - p - bromophenyl - anthraquinone - 21 : 31 - oxazole, 2-p - halogenbenzoylaminoanthraquinone (Specification 584,819), p-n-butanesulphonylbenzoic acid or an acylating derivative thereof; (2) 6 - p - (51 : 61 - benz - 11 : 21 - phthaloyl - carbazole - 6 - amino) - benzoylamino - 31 : 41-phthaloyl-acridone (see example 5 of Specification 566,872) is reacted with zinc powder in presence of naphthalene-b -sodium sulphonate, methylamine, and dimethylformamide, and the solution obtained is treated with sulphur trioxide; (3) methyl chlorsulphonate is reacted with the product from 6-amino-10-methyl - 31 : 41 - phthaloylacridone and 2-p - bromophenyl - anthraquinone - 21 : 31-oxazole and iron powder in presence of acetonitrile and dimethylformamide.  Starting materials prepared from 2-p-bromophenyl-anthraquinone - 21 : 31 - oxazole and 6 - amino-11-, or 12-methyl, 12-methoxy-, 10-chloro- or 9 : 10 - benzo - 31 : 41 - phthaloylacridone are also specified.  Specification 274,156, [Class 2 (iii)], also is referred to.
Patent GB-171125-A (GB)
Title: Improvements in the manufacture of viscose artificial silk
IPC: D01F2/10
Filed: 1920-05-14
Abstract: Relates to modifications of the processes for spinning the finest threads of viscose silk of Specifications 163,817 and 166,931, using the ordinary spinning apertures of 0.1 mm. diameter.  According to the present invention, artificial resins prepared by the condensation of phenols with formaldehyde, are added to the viscose before spinning and preferably before ripening.  As spinning baths, concentrated solutions of bisulphite of soda, alone or with the addition of ammonium bisulphite are employed, and the concentration of the bath is maintained higher according as the threads are finer, as in Specification 170,874.  By this addition it is stated that the threads take darker shades in the dye-bath; and that their resistance to water is increased.ALSO:Viscose silk is stated to take darker shades in the dye-bath if phenol-formaldehyde resin is added to the original viscose solution.
Patent GB-1175144-A (GB)
Title: Form for casting sewer manholes and like concrete articles.
Inventor: ABATE SALVATORE
IPC: E06C9/04
Filed: 1967-03-22
Abstract: 1,175,144. Collapsible cores. S. ABATE. 22 March, 1967 [1 April, 1966], No. 13405/67. Heading B5A. [Also in Division E1] Shuttering more particularly for casting sewer manholes comprises a sheet iron box released by deforming inwardly by links 7 pivoted to plates 9 on a rotatable rod 10 at the centre of the box. The box comprises four angle members 2, each link being connected between the adjacent edges of two members by a spring bolt 4. The box may be held in release position by a latch. An external shuttering is described, Fig. 7 (not shown), and a removable plate having projecting rods to make holes in the unset concrete walls of the manhole for ladder rungs &c.
Patent GB-131439-A (GB)
Title: Improvements in and relating to Portable Lighting Devices.
Inventor: DIXON ROBERT
IPC: B60Q7/00
Filed: 1918-08-19
Abstract: 131,439. Dixon, R. Aug. 19, 1918. Supporting.-A portable lighting set, more particularly for inspection purposes on automobile and similar vehicles, comprises a rectangular box 10 or other casing containing a battery 24, an electric lamp, and a spring-controlled roller of insulating-material round which the leads 22 of the lamp are wound. The leads are connected by nuts and washers to angular elements 18 arranged in pockets in the roller and attached to separate core-pieces 16, 17, which extend beyond the roller and form trunnions, which are electrically connected through the bearings 27 with the wires of the battery. The roller is influenced in one direction by a spring 28 connected at one end to the roller or one of the core-pieces 16 and at the other end to a square sleeve 28a, the roller having gravity clutch elements engaging a cam member on the sleeve 28<a> so that, when the roller is partly unwound, further turning movement is prevented except when a direct pull is exerted thereon.
Patent GB-879709-A (GB)
Title: A device for checking the oil feed from a pump to a lubricating point
IPC: F16N29/00
Filed: 1960-04-14
Abstract: 879,709. Liquid-meters. PEDERSEN, A. April 14, 1960, No. 13485/60. Class 69 (1). In a device for checking the oil feed from a pump to a lubricating point the oil is by-passed to a chamber 6, Fig. 2, containing a freely movable piston 7 carrying an indicator 9 for observation on a scale 10. The oil normally passes through inlet and outlet valves 3, 4 and an intermediate back pressure valve 12. After manual depression of the piston 7 the oil flows into the chamber 6 against the freely movable piston, the valve 12 remaining closed until the piston reaches the end of its stroke and the pressure builds up sufficiently to lift the valve 12. Specification 828,493 is referred to.
Patent GB-981306-A (GB)
Title: Evaporators
IPC: B01D3/06
Filed: 1962-04-09
Abstract: 981,306. Evaporating liquids. DOUGLAS AIRCRAFT CO. Inc. April 9, 1962 [April 21, 1961], No. 13536/62. Heading B1B. Liquid is evaporated by introducing it, at a predetermined temperature, from an inlet chamber 62 through an annular channel 66 and a downwardly-directed annular slot 70, into an evaporator-chamber 72, maintained at a pressure less than that at which the liquid boils at the determined temperature, the liquid being made to rotate by a plurality of tangential vanes 68 in the annular channel 66 so that it descends the evaporator-chamber 72 in the form of a rotating curtain 119 of liquid which is free of contact with the walls of chamber 72. Vapours are evolved in the direction 121; and the unevaporated liquid forms a thick ring 122 at the bottom of chamber 72, from which the liquid flows beneath flange 28 and through diffuser vanes 30 into a collection chamber 38. The apparatus can be used for the evaporation of water supplied to inlet 50, at a temperature of 285 F. under super-atmospheric pressure, e.g. from an aircraft brake device. The steam flashed off in chamber 72 is vented to the atmosphere, or it may be used for heating or for driving a turbine. The apparatus also comprises an annular storage tank 74 which is connected by three conduits 76 to a tube 78. Before the apparatus is put into operation, the tube 78, conduits 76 and the tank 74 are filled with water. The space above the water in tank 74 communicates with the top of the evaporating chamber by a number of tubes 112 so as to equalize the pressure in the two chambers. During operation, water is supplied to the thick ring 122 of unevaporated water from tank 74, via the conduits 76, the tube 78 and a radial path between bosses 86 and 88. The outlet 42 from the collection chamber 38 is connected to a return-line leading back to the brake device. The cover-plate 72 is attached to piston 100 which slides in cylinder 102, the plate being normally retained in its closed position by spring 104, but being raised when the pressure in tube 78 is greater than atmospheric. Specification 942,582 is referred to.
Patent GB-898362-A (GB)
Title: Vertical take-off aircraft control
Inventor: FROST JOHN CARVER MEADOWS
IPC: B64C39/00
Filed: 1954-05-11
Abstract: 898,362. Aircraft. AVRO AIRCRAFT Ltd. May 10, 1955 [May 11, 1954], No. 13579/55. Divided out of 898,360. Class 4. [Also in Group XXI] An aircraft as described in Specification 898,360 comprises a generally lentiform structure sheathed by opposed aerofoil surfaces, gas turbine engines within the structure having an annularly arranged outlet 47 adjacent a ring 48 forming the perimeter of the structure, the outlet including an upper nozzle 49 and a lower nozzle 50 through which the air and combustion products from the engines may be ejected in two streams having opposite components of thrust, individual shutters, 53, 54 for the nozzles separately movable to vary the nozzle openings, and shutter control means operable to move the shutters selectively and thus control the relative magnitudes of the streams from the nozzles. A handle 98 is movable between a take-off position with all the upper shutters 53 closed, Fig. 10, to a flying position where hydraulic fluid actuates jacks 76 to move upper shutters 53 inboardly and lower shutters 54 outboardly so that the upper and lower nozzles are partly open, Fig. 12. Movement of handle 98 simultaneously actuates - a jack 71 which,moves forward bodily all the shutter control units, secured to a ring 70 so that in the flying position the upper and lower nozzles are completely closed at the forward end with progressively increasing openings to a fully open position aft, Fig. 11. Control in pitch and roll is obtained by movement of a handle 90 which actuates diametrically opposed upper shutters and diametrically opposed lower shutters differentially through pumps 94 and jacks 81. Rudder control is obtained by opening and closing shutters on port and starboard jets 101. Air from the engine compressors is admitted to annular pressure boxes 59, 60 to provide air bearings for the shutters 53, 54. The nose section of the ring 48 is of armour plate so that enemy aircraft can be destroyed by ramming. Specifications 898,358 and 898,359 also are referred to.
Patent GB-410613-A (GB)
Title: Electric battery lamp switch
IPC: F21L4/00
Filed: 1933-05-10
Abstract: 410,613. Electric battery lamps. ELEKTROTECHNISCHE FABRIK SCHMIDT & CO., GES., 620, Teplitzerstrasse, Bodenbach-on-Elbe, Czecho-Slovakia. May 10, 1933, No. 13590. Convention date, May 10, 1932. [Class 39 (ii).] Lugs 7 on a sliding spring contact 5 of a battery lamp switch moved by a knob 6 engage holes in the switch casing in the end positions and are moved therefrom by downward pressure on the knob 6. The spring 5 is adapted to contact with an insulated metal arm 2 and is formed separately from the knob 6. The lugs 7 are received wholly in the switch casing 4 when the knob is depressed.
Patent GB-356145-A (GB)
Title: Process of extracting the impurities from quartz, silicates and particularly from clay
IPC: C03C1/02
Filed: 1930-05-02
Abstract: Quartz, and clay and other silicates are freed from iron by treatment with dilute sulphuric acid containing 4 per cent or more of ferrous sulphate.  Elevated temperatures may be used. Materials containing calcium or magnesium compounds may first be freed therefrom by pretreatment with sulphurous acid.  Additional raw materials specified are kaolin, gritstone, infusorial earth, feldspars, argillaceous schist, and magnesium silicates such as asbestos.
Patent GB-398459-A (GB)
Title: Improved process for the sterilisation of surgical sewing material
IPC: A61L2/16
Filed: 1933-05-10
Abstract: Surgical sewing material, particularly catgut, is sterilized by means of aqueous or alcoholic solutions of compounds of the halogens with each other.  A solution containing one part per thousand of iodine trichloride is effective.  Iodine monochloride, iodine bromide, bromine fluoride, and iodine fluoride may also be used.