baber/WOPTO huggingface dataset:
Patent GB-474323-A (GB)
Title: Process for the electrolytic manufacture of oxide layers on aluminium and aluminium alloys
IPC: C25D11/10
Filed: 1936-12-09
Abstract: 474,323. Electrolytic surface treatment of aluminium and its alloys. SCHERING - KAHLBAUM AKT.-GES. Dec. 9, 1936, Nos. 33848 and 33849. Convention dates, Dec. 11, 1935 and July 31, 1936. [Class 41] The metals are anodically coated in an aqueous solution of an aromatic sulphonic acid containing an hydroxy, oxo and/or carboxyl group in the aromatic hydrocarbon residue sulphuric acid being either absent or present in less amount than the sulphonic acid. The sulphonic acids employed should have a dissociation constant greater than 1 x 10<-4>, preferably greater than 1 x 10<-3> at room temperature. Cresol, phenol, thymol sulphonic acids and m-cresol-disulphonic acid are suitable. A suitable proportion of sulphuric acid is up to 50 gms. per lit. and 1-10 per cent by weight of the sulphonic acid. Sulphonation mixtures obtained in the manufacture of sulphonic acids and containing excess sulphuric acid may be employed after suitable dilution. For the production of soft layers alkali metal sulphates may be added to the bath. For the production of translucent layers sulphates of polyvalent cations such as those of manganese, magnesium, chromium and aluminium may be added ; these may be obtained by interaction of the free sulphuric acid present in commercial sulphonic acids with the oxides or carbonates of the metals. The sulphate content of the bath may be 50-200 gms. per lit. The coatings obtained may be consolidated and impregnated or coloured in known manner.
Patent GB-1056791-A (GB)
Title: A method of precipitating finely divided solids suspended in an aqueous medium
IPC: C08F8/12
Filed: 1963-08-27
Abstract: Finely divided solids suspended in an aqueous medium are precipitated by the addition of a water-soluble cationic polymer or water-soluble salt thereof, wherein the cationic polymer has a molecular weight of at least 50,000 and contains at least 50 mole per cent of units of the formula <FORM:1056791/C1/1> in which p is 0 or 1; R1 when not joined to R4 represents H or a hydrocarbon group; R2 represents H or a hydrocarbon or -(CH2CH2NH)2H group where z is 1 to 4; and R3 is H, halogen, haloalkyl, alkoxycarbonyl or hydrocarbon. The polymers are prepared as described in Specification 1,056,793.  The polymer may be added to an aqueous suspension to be dewatered in an amount of 0.001-5% based on the weight of suspended matter.  Larger amounts tend to faster dewatering.  Data are given illustrating the action with clay suspensions, the clarification of waste activated sludge, and the filtration and clarification of spent biological sewage sludge.ALSO:Finely divided solids suspended in an aqueous medium are precipitated by the addition of a water-soluble cationic polymer or water-soluble salt thereof, wherein the cationic polymer has a molecular weight of at least 50,000 and contains at least 50 mole per cent of units of the formula <FORM:1056791/C3/1> in which p represents zero or 1; R1 when not joined to R4 represents hydrogen or a hydrocarbon group; R2 represents hydrogen, a hydrocarbon group or a -(CH2CH2NH)zH group where z is an integer of 1 to 4; R3 represents hydrogen, halogen, haloalkyl, or an alkoxy carbonyl or a hydrocarbon group.  The polymers are prepared as described in Specification 1,056,793.
Patent GB-1204978-A (GB)
Title: Improvements relating to magnetic tape transports
IPC: G11B15/20
Filed: 1969-07-04
Abstract: 1,204,978. Feeding record tapes. POTTER INSTRUMENT CO. Inc. 4 July, 1969 [7 Oct., 1968], No. 33903/69. Heading G5R. In a bi-directional tape transport for moving a magnetic tape 24 through a predetermined distance, a synchronous motor 12, 14, 15 directly coupled to a capstan 16 is connected to an A.C. power supply 54 for a predetermined number of A.C. cycles under the control of a counter. Forward movement of the tape is controlled by a counter 86 and reverse movement by a counter 94. After one complete A.C. cycle has been applied to the motor in forward drive, the counter 86 signals to a controller 46 to start recording, the motor then being up to synchronous speed.
Patent GB-394580-A (GB)
Title: Improvements in or relating to cathode ray tubes and apparatus incorporating the same
IPC: H01J29/48
Filed: 1932-11-30
Abstract: 394,580. Cathode-ray tubes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Nov. 30, 1932, No. 33934. Convention date, Nov. 30, 1931. [Class 39 (i).] Indirectly-heated cathodes of cathode-ray tubes with fluorescent screens used in television receivers &c. are heated by electron bombardment from a body of, or having a surface of, oxide, thorium, or other substance emitting electrons at a temperature not exceeding dull red. A tubular cathode carrying emissive material 2 contains an emissive helix 3 biased negatively with respect to the tube 1 by a source 5 which may also serve, directly as shown or through a potentiometer, as the source for biasing a concentrating electrode such as a flat apertured electrode or a Wehnelt cylinder 8. When the electrode 8 also controls the intensity of the cathode-ray, the source of modulating potentials is connected in series with the source 5.
Patent GB-1078733-A (GB)
Title: Device for accelerating rail-mounted travelling tubs in mining installations
IPC: B61B13/12
Filed: 1964-08-19
Abstract: 1,078,733. Track propulsion systems. DEMAG A.G. Aug. 19, 1964 [Jan. 28, 1964], No. 33943/64. Heading B7L. [Also in Division F2] In a device for accelerating rail-mounted travelling tubs, a friction wheel 5 is mounted on a stationary driving spindle 8 of a motor 1 with associated gearing 2 disposed adjacent the track and the friction wheel 5 contacts the tubs frictionally from the side or from below the radius of the friction wheel being greater than the distance between the longitudinal axis of the driving spindle and that face of the tub which serves as a running track for the friction wheel, the friction wheel also being provided with a concentric hole 5c and adapted to be gripped between at least two disc members 6, 7 forming a friction coupling, so mounted on the driving spindle that they have neither radial nor rotary motion relatively to it, at least one of the disc members (7) having axial motion in relation to the driving spindle 8 and being capable of being pressed with constant or vari. able force continuously or periodically against the friction wheel. The friction wheel is provided with a pneumatic or solid rubber tyre or a tyre made of plastics material. The means for pressing the disc members 6, 7 into contact with the disc portion 5a of the friction wheel 5 may consist of a rubber ring member 9 which bears axially against the disc member 7 (Fig. 1) or alternatively by means of an electromagnet 13 which is energized so that contact pressure is applied between the disc member 7 and the disc portion 5a of the friction wheel 5 (Fig. 2, not shown). In the embodiment described in Fig. 2 (not shown), a heat insulating layer 12 is inserted between the friction facing 11 and the rim 5b of the friction wheel 5 and a cover 5d is provided to protect the friction wheel operating parts. A viscous substance may be introduced between the faces of the coupling.
Patent GB-602651-A (GB)
Title: Improvements in fluid-actuated pre-selective control means with successive positions
IPC: F16D65/28
Filed: 1945-12-14
Abstract: 602,651. Locking rods and levers. SERVO-FREIN DEWANDRE SOC. ANON. Dec. 14, 1945, No. 33957. Convention date, Aug. 12, 1942. [Class 80 (iii)] [Also in Group XXIX] In a fluid-pressure device for effecting the automatic displacement and stoppage of a member 21 in pre-selected successive positions, a distributer 13 operated by a lever 10 is held in its open position by a mechanism. in a casing 16. Connected to the lever 10 is a rod 14 carrying a bar 15 with a groove 19. A spring-loaded locking member 17 engages this groove to hold the lever 10 in its right-hand position after it has been moved to open the distributer. A lever 38 is then moved to the right, together with its link 39 and bar 40 containing the groove 42. A spring- loaded locking member 43 next engages the groove 42 to keep the distributer locked in its open position and then raises the locking member 17 to disengage it from the groove 19, thereby freeing the lever 10. The locking member 43 disengages the groove 42 when it is forced down by a lever 46 being actuated. through contact with projections 50, 50a, 50b on the member 21. Movement of the member 21 in the reverse direction is controlled by a similar distributer 13a and associated mechanism in casing 16a.
Patent GB-1468247-A (GB)
Title: Thermoplastics moulding composition
IPC: C08L7/00
Filed: 1974-08-01
Abstract: 1468247 Photodegradable olefin polymer compositions BASF AG 1 Aug 1974 [2 Aug 1973] 33976/74 Heading C3P Photodegradable moulding compositions comprise (1) an olefin polymer and (2) 0À1 to 50 weight per cent of a copolymer of ethylene with 0À1 to 50 weight per cent of an α,#-olefinically unsaturated ketone. The olefin polymer may be a polymer of ethylene, propylene, butene-1,4- methylpentene-1 or cyclopentene, optionally with vinyl, acrylic or methacrylic esters, or acrylic, methacrylic, fumaric, itaconic or maleic acid. Suitable ketones are methyl, ethyl and phenyl vinyl ketones and 3-penten-2-one. The compositions may be moulded to form packaging materials, e.g. bags, sacks, sheets, boxes, buckets and crates. Examples describe compositions of polyethylene and ethylene/methyl vinyl ketone copolymers.
Patent GB-1437231-A (GB)
Title: Dual lever valve control mechanism
IPC: G05G13/02
Filed: 1973-07-17
Abstract: 1437231 Valves; linkwork CATERPILLAR TRACTOR CO 17 July 1973 [17 Aug 1972] 33999/73 Headings F2V and F2K In a valve arrangement for a loader bucket three separate valves are controlled by two levers 12, 26 which are disposed so that they can be operated by a single hand. When lever 12 is rotated about the axis Y on pivot 14, rod 15 is reciprocated and operates valve 19 via bellcrank 16. Operation of lever 12 in a plane at right angles to the plane of the previously described movement rotates a tubular bellcrank 20 through an arm 21 and a further arm 22 operates valve 24. A second lever 26, pivoted about an axis Y<SP>1</SP>, produces no effect when rotated about this axis, but when rotated in a plane at right angles to this movement operates a third valve 34 via a lever 31. The control levers may be locked in their neutral position by means of a hinged slotted plate 35 which engages lugs 40, (41) on the arms 12, 26. A hole 42 is provided for a padlock. The lever 26 is provided with rubber friction bushes (46) at its pivot to hold it in a selected position.
Patent GB-842824-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L11/00
Filed: 1958-10-24
Abstract: 842,824. Copying documents. RITZERFELD, W., and RITZERFELD, G. Oct. 24, 1958 [Nov. 1, 1957], No. 34172/58. Class 100(2) A rotary duplicating machine for printing lines or sections from a mirrorscript printing master sheet on to copy sheets comprises a printing element and a counter pressure element, one of which is provided with pressure members allocated to the lines or sections of the master sheet, and which are radially settable in position relative to an axis of rotation of the said one element for selecting lines or sections of the master sheet for printing, the arrangement being such that on operation of the machine only those pressure members which have been set co-operate with the other element to effect printing of the selected lines or sections. The counterpressure roller comprises end plates 9, 10, Figs. 1 and 2, carrying between them a plurality of axially extending pressure members 11 corresponding to the lines 1Z-26Z of the master sheet 3. Each member 11 is displaceable radially against springs 23 outwardly by rollers 19 on the member engaged by cam projections 18 on a cam rod 16 moved against a spring 17 by an electromagnet 12 actuated by a keyboard. In another form, Fig. 4, the members 11 are carried on the printing drum so as to raise portions of the master sheet 3, and each rod 16 is moved manually between its two positions defined by notches therein engaged by a spring 25. For printing whole pages, the counter-pressure roller is swung towards the drum on its eccentric axis so to print while all the elements 11 are in their inoperative position. In another form, Fig. 6, the pressure members 31 are arcuate and extend circumferentially of the drum, being actuated by magnets 33, 34 operated by a keyboard.
Patent GB-171314-A (GB)
Title: Improvements in and relating to oil lamps
IPC: F23D3/00
Filed: 1920-12-03
Abstract: 171,314. Webb, W. W. Dec. 3, 1920. Candles, lamps in form of. -In an oil lamp of the type having the form of a candle and comprising a tubular reservoir a containing absorbent material c, a wick-holder e having a perforated positioning-member f capable of being slid in the reservoir, and a removable centrally perforated cap g for receiving the wick-holder, the cup-shaped positioning-member f is perforated at different levels for facilitating the venting of displaced air while recharging the reservoir with oil. Air openings j may be provided at or adjacent to the top of the tubular reservoir, and the reservoir may have a tapering spring spigot b at its lower end. The wick h is adjusted by inserting a pin into a hole k formed in the upper end of the wick-tube e, which passes through and slightly beyond the perforated top of the cap g.
Patent GB-1192557-A (GB)
Title: A Method of Manufacturing Moulds or Cores for Casting Metals
IPC: B22C1/16
Filed: 1967-07-28
Abstract: 1,192,557. Moulds; cores. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 28 July, 1967 [26 Oct., 1966], No. 34828/67. Addition to 1,189,883. Heading B3F. [Also in Division C3] In the production of a mould or core of a granular material including a binder and compatted by a vibrator as described in parent Specification 1,189,883 the solidification of the moulded mass is accelerated by providing in the mould or core box 1 a hollow body 3, e.g. a tube formed of perforated metal, porous ceramic, or metal fabric, through which a gaseous fluid, e.g. compressed air, can be passed to the moulding mass. The hollow body 3 remains in the mould or core as reinforcing and/or handling means therefor. The binder may be a furane resin to which sodium borate peroxyborate, as accelerator, may be added.
Patent GB-205778-A (GB)
Title: Improvements in or relating to asynchronous induction machines with compensation of the phase displacement
IPC: H02K17/28
Filed: 1922-12-15
Abstract: 205,778. Torda, T. Oct. 21, 1922, [Convention date]. Addition to 204,294. Alternating-current commutator and induction machines.-In an induction motor of the type described in the parent Specification, the rotor commutator winding is provided with polyphase terminals, one of which is directly connected to a terminal of the polyphase rotor winding, and the others are connected to the remaining terminals of the polyphase winding through slip-rings. In Fig. 1, two of the three-phase terminals u of the commutator winding are connected through sliprings z<n> and switches c to the slip-rings z<2>, z<3> of the polyphase rotor winding, and the commutator brushes b<1>, b<3> are fed at reduced voltage from tappings g on the stator m. Starting is effected by the resistance w with the switches c open. The brushes b<1>, b<3> may be supplied from a transformer or from separate windings of a few turns arranged on the stator. In the case of small motors, the terminals of the commutator winding may be connected directly to the polyphase winding.
Patent GB-1564373-A (GB)
Title: Process for the separation of dinitroanthraquinone mixtures
IPC: C07C/
Filed: 1977-08-17
Abstract: Dinitroanthraquinone mixtures which contain nitrobenzene are separated. The process comprises the following steps:   a) 1 part by weight of a dinitroanthraiquinone mixture containing 4.5 to 9 parts by weight of nitrobenzene and/or the solution present after the separation of 1,5-dinitroanthraquinone as per step b) is treated at 100 - 200 DEG C and then the insolubles are separated off at 100 - 150 DEG C. b) The residue obtained according to a), which consists essentially of 1,5-dinitroanthraquinone, is treated with 1 to 4 parts by weight of nitrobenzene at 140 DEG C to the boiling temperature and then cooled down to 90 to 130 DEG C, and the undissolved 1,5-dinitroanthraquinone is separated off. c) Finally the solution remaining according to step a) after the insolubles have been separated off is cooled down to 90 to 120 DEG C and the crystallised 1,8-dinitroanthraquinone is separated off.   The 1,5- and 1,8-dinitroanthraquinone obtained can be used for synthesising anthraquinone dyes.
Patent GB-175809-A (GB)
Title: Improvements in warning horns for use on motor-cars and the like
IPC: G10K9/22
Filed: 1920-12-07
Abstract: 175,809. Beken, E. G., and Swinburne, F. R. Dec. 7, 1920. Horns, construction of.-Relates to warning- horns for motor vehicles &c. in which the sound, after leaving the reed, travels along a reed-pipe where it enters a resonating chamber carried by the reed-pipe. The sound waves issue from this chamber and travel back to the closed end of the bell by return tubes. A second resonating chamber may be provided at the closed end of the bell. As shown in Fig. 1, the bell A is attached to a resonating chamber B, and to the centre of this chamber is attached the reed-pipe C. The reedpipe terminates in a chamber E, and sound waves issuing from this chamber pass along the two return tubes F, which open into a resonating chamber B. The return tubes are cut off at an angle, as at F<2>, so that the sound is thrown outwards into the chamber B. In the modified construction shown in Fig. 3, the resonating chamber E<2> is rectangular and there are four return tubes F3.
Patent GB-1382715-A (GB)
Title: Index cards or sheets
IPC: B42F21/10
Filed: 1972-07-24
Abstract: 1382715 Indexing J C E SAHLIN 24 July 1972 34588/72 Heading B6E An index card 10 is formed from a 50 micron thick polyester film and provided along one edge with filing perforations (11, Fig. 1), and along the opposite edge with a row of perforations 13, pairs of which receive the hooks 17 of an index tab 14 made of rigid, 0À3 mm. thick polyvinyl chloride sheet.
Patent GB-991371-A (GB)
Title: Improvements in or relating to multiroute pulse communication systems
IPC: H04J3/08
Filed: 1961-09-27
Abstract: 991,371. Pulse modulation systems. WESTERN ELECTRIC CO. Inc. Sept. 27, 1961 [Dec. 1, 1960], No. 34656/61. Heading H4L Relates to the derivation at points of route intersection in pulse communication systems of timing pulses for reducing the signals of intersecting routes to a common time base. As shown, multiplex pulse code modulated signals 10 on a route west to east and 11 on a route north to sourth are supplied, via respective aerials 12 at a repeater to identical paths comprising a variable delay 14, amplifier 16, regenerator 20 and amplifier 21 to appropriate multiplex circuitry 40. In each path a directional coupler 18 extracts a portion of the radiofrequency signal from the output of the amplifier 16, which is demodulated at 26, the resulting pulses being supplied to a high Q band-pass filter 34 tuned to the basic pulse repetition frequency of the system together with similar pulses abstracted from the other path. The resulting output consisting of a sine wave oscillating at the basic pulse repetition frequency and having a phase relative to the input waves which is the mean of the phase difference between these waves is supplied to a peak limiter 44 which removes any amplitude variations, a low Q band-pass filter 46 which eliminates harmonics, and a base limiter 48 which develops pulses having a " raised cosine " shape. These timing pulses are supplied via a fixed delay 32 to the regenerators 20 to control the retiming of the signal pulses in known manner. Since common timing pulses are used for both routes the intelligence signals from both routes may be interleaved or transferred from one route to another, and failure of signals on one route will not interrupt the timing operation at the repeater. The regrouped multiplex signals are transmitted as west to east signal 42 and north to south signal 43. The principle may be extended to include any number of routes the number preferably being an integral power of 2. A further improvement may be effected by supplying the pulses from each amplitude detector 26 to a corresponding phase detector 28 together with timing pulses, from the limiter 48, the resulting phase comparison signal controlling variable delay device 14 in the respective signal paths. Specification 991,372 is referred to.
Patent GB-409247-A (GB)
Title: An improved method of increasing the tensile properties of viscose rayon
IPC: D06M13/152
Filed: 1933-12-09
Abstract: Viscose artificial silk has its tensile properties enhanced by incorporating in the viscose to be spun, an aromatic derivative of an aliphatic alcohol the aromatic group replacing a hydrogen atom other than that of the hydroxy group.  Examples of such derivatives are anisyl alcohol, benzyl alcohol, and phenyl ethyl alcohol, and the amount added is preferably from 15 to 30 per cent of the weight of the cellulose present.  The derivative is not necessarily soluble in the viscose, for example, benzyl alcohol may be added as an emulsion or as the sodium salt which is soluble.  In an example, viscose is prepared, filtered, and aged, and within 24 hours of the spinning time, 1.5 per cent by weight of benzyl alcohol is thoroughly emulsified in the solution.  The viscose is then spun under normal conditions.  The yarn shows an increase in wet strength of 20 per cent, in dry strength of 5 per cent, and in dry extensibility of 15 per cent.
Patent GB-343090-A (GB)
Title: Process for the manufacture of 1:4:4-trihydroxy-2:2-dianthraquinonyl-3:1-oxide
IPC: C09B5/24
Filed: 1929-11-13
Abstract: 1 : 4 : 41-Trihydroxy-2 : 21-dianthraquinonyl-3 : 11 oxide is obtained by treating 1 : 4 : 11 : 41 : tetrahydroxy-2 : 21-dianthraquinonyl with boiling nitronaphthalene, cooling and crystallizing.  Other high-boiling nitro-compounds may be used. Specification 10074/03, [Class 2, Acids and salts, Organic &c.], is referred to.
Patent GB-1058956-A (GB)
Title: Device for producing a uniform conveying flow of flat items
IPC: B65G47/00
Filed: 1965-08-13
Abstract: 1,058,956. Endless conveyers. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Aug. 13, 1965 [Aug. 22, 1964], No. 34758/65. Heading B8A. A device for establishing a uniform conveying flow, with a uniform direction of overlap from flat items such as items of mail comprises a bottom conveyer belt 1 with a group of conveyer rollers 4 to 8 and 9 to 12 on each side of the conveying channel, so arranged that the spacing between the rollers becomes less from the inlet towards the outlet. The rollers are all driven in the conveying direction but the two groups have different conveying speeds. Fig. 2 (not shown) illustrates an embodiment wherein one of the groups of rollers, 9 to 12, is mounted on a spring-loaded pivoted arm 16 so as to be able to yield outwardly if a large pile of items enters the device. Two bottom belts 24, 25, Fig. 3 (not shown), may be provided, the second of which has a higher conveying speed than that of the first, while the rollers 4<SP>1</SP> to 8<SP>1</SP> and 9<SP>1</SP> to 12<SP>1</SP> may be so driven that their speeds increase from the entrance to the exit. One or both sets of rollers may be replaced by one or two edgewise conveyer belts, Figs. 6 and 8, respectively (not shown).