baber/WOPTO huggingface dataset:
Patent GB-828329-A (GB)
Title: Improvements in or relating to optical whitening agents
Inventor: ADAMS DENNIS ARTHUR WILLIAM
IPC: C07D487/04
Filed: 1956-09-18
Abstract: Compounds of the formula <FORM:0828329/III/1> in which X is hydrogen or a group which is neither chromophoric nor auxochromic (e.g. halogen or C1-6 alkoxy), n is an integer of from 1 to 5 and A is a group <FORM:0828329/III/2> where R1 is hydrogen or a hydrocarbon radical (e.g. alkyl, aralkyl or aryl), R2 is hydrogen, a hydroxyalkyl or polyethanoxy group or a hydrocarbon radical (e.g. alkyl, aryl or aralkyl), and salts thereof, particularly alkali metal salts, are added as optical brighteners to solid or liquid soaps and synthetic detergents.ALSO:The invention comprises optical brightening compounds of the formula <FORM:0828329/IV (b)/1> in which X is hydrogen or a group which is neither chromophoric nor auxochromic (e.g. halogen or C1-6 alkoxy), n is an integer of from 1 to 5 and A is a group <FORM:0828329/IV (b)/2> <FORM:0828329/IV (b)/3> where R1 is hydrogen or hydrocarbon radical (e.g. alkyl, aralkyl, or aryl), R2 is hydrogen, a hydroxyalkyl or polyethanoxy group or a hydrocarbon radical (e.g. alkyl, aryl or aralkyl), and salts thereof, particularly alkali metal salts. The compounds are prepared by diazotizing a compound of the formula <FORM:0828329/IV (b)/4> and coupling the product of the formula <FORM:0828329/IV (b)/5> with a compound HB, where B is <FORM:0828329/IV (b)/6> <FORM:0828329/IV (b)/7> to give a dyestuff of the formula <FORM:0828329/IV (b)/8> which is then oxidized with an alkali metal hypochlorite, cuprammonium sulphate, a copper sulphate-pyridine soluble complex, thionyl chloride or sulphuryl chloride.ALSO:Compounds of the formula <FORM:0828329/IV(c)/1> in which X is hydrogen or a group which is neither chromophoric nor auxochromic (e.g. halogen or C1-6 alkoxy), n is an integer of from 1 to 5 and A is a group <FORM:0828329/IV(c)/2> where R1 is hydrogen or a hydrocarbon radical (e.g. alkyl, aralkyl or aryl), R2 is hydrogen, an hydroxyalkyl or polyethanoxy group or a hydrocarbon radical (e.g. alkyl, aryl or aralkyl), and salts thereof, particularly alkali metal salts may be used alone or with other optical whitening agents for imparting whiteness to cotton, linen, protein, e.g. wool, and polyamide textile materials and to paper.  A dyestuff of the formula <FORM:0828329/IV(c)/3> is prepared by coupling a compound of the formula <FORM:0828329/IV(c)/4> with a compound of the formula HB, where B is <FORM:0828329/IV(c)/5> and R1, R2, X and n are as defined above.
Patent GB-1202923-A (GB)
Title: Improvements in or relating to methods and apparatus for finishing rope ends and ropes having ends so finished
Inventor: OUTRAM GEORGE
IPC: D07B9/00
Filed: 1967-06-21
Abstract: 1,202,923. Finishing rope ends. UNION LIGHTERAGE CO. Ltd. 8 Aug., 1968 [21 June, 1967], No. 28604/67. Heading D1T. A rope end of synthetic fibres is finished off by heating said end sufficiently to cause synthetic polymer filaments present at the surface of the rope end to fuse together whilst a torque is applied to the rope tending to rotate the end of the rope in the direction of the rope lay. The synthetic polymer filaments may be in the form of a whipping applied to a synthetic fibre rope. Alternatively the synthetic polymer filaments are filaments forming part of the rope itself so that end whipping of the rope is not essential. The fusing operation may be effected by inserting the rope end into a rotating heated die member. In Fig. 1 (not shown) the rotatable die member (5) is heated by a gas nozzle (19), and a circular guide member (7) is positioned such that a rope passing therethrough will enter the heated rotating die (5). A tank (22) of water is positioned below the guide member (7) so that the rope end can be wetted. In operation the rope end is passed through the guide (7) and into the heated rotating die (5), quickly withdrawn and dipped into the water in the tank (22). Thereafter the rope end is again passed through the guide (7) and into the die (5) where the water is converted into steam to prevent the melted polymer from sticking to the die. The operation may then be repeated, each insertion of the rope end into the die being preceded by dipping it into said tank (22).
Patent GB-721342-A (GB)
Title: Improvements in or relating to echo-sounding apparatus
IPC: G01S15/10
Filed: 1952-11-13
Abstract: 721,342. Echo-sounding. ELECTROACUSTIC GES. Nov. 13, 1952 (Nov. 16, 1951], No. 28626/52. Class 118 (2). Echo-sounding apparatus incorporating means for indicating echoes within a predetermined partial range which is arbitrarily adjustable as to its location within a maximum sounding range (such as that described in Specification 711,469) is enabled to utilise a relatively high pulse repetition frequency (p.r.f.) by providing means for selecting one or other of two or more repetition frequencies such that direct pulses do not appear in the partial range as false echoes. This high p.r.f. is to enable a flicker-free visual indication to be given on a glow discharge lamp or cathode ray tube for soundings at considerable depth. The partial range selection dial 9 of apparatus in which a partial range of about 20 metres can be selected from anywhere within a maximum range of 500m. is coupled to a cam 11  operating contacts 6 to put either contacts 4 or contacts 5 in the circuit of a pulse generator. Contacts 4 and 5 are closed by cams Fig. 1 (not shown) 6 and 7.5 times per second respectively, the p.r.f. of 7.5 per second being normally used but in the neighbourhood of the critical ranges -100, 200, 300, and 400 metres for a velocity of sound in water of 1500 m./sec.-the cam 11 causes contacts 6 to put contacts 4 in the pulse generator circuit and thereby change the p.r.f. to 6 per second, giving direct pulses at apparent ranges of 125, 250, 375 and 500 metres which do not fall within the critical partial ranges.
Patent GB-724052-A (GB)
Title: Improvements in aeroplanes propelled by several jet engines
IPC: B64D27/20
Filed: 1952-11-13
Abstract: 724,052. Gas turbines. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Nov. 13, 1952 [Nov. 17, 1951; Oct. 4, 1952], No. 28680/52. Class 110 (3). [Also in Group XXXIII] The mounting of a gasturbine engine to two brackets 85 and 86, Fig. 7, comprises a ring of angle section 87 secured to bracket 85, and a ring 98 bolted to bracket 86 through fittings 98a. Ring 87 bears on the forward groove of the intake casing through a resilient rubber ring. Two plates 94, 99 are mounted on the engines, the latter bearing a short lever 93 pivoted to plate 99 about a vertical axis and universally pivoted to ring 98, so that the pivot may also slide axially of the engine. Plate 94 carries a universally mounted lever 92, universally pivoted to ring 98 at one end and pivoted about a vertical axis to a yoke 95, itself pivoted about vertical axes to two plates 96, 97 fast to the engine. A further jet engine mounting, Fig. 13, comprises a plate 112a universally pivoted to a plate 111 by rod 112, plate 111 being secured to an inverted U-shaped frame 106 straddling the engine. Three other U-shaped members 108, 109, 110 support two members 113a, one on each side of the engine, to which the engine is universally pivoted, one mounting also being capable of sliding movement towards or away from the other.
Patent GB-265896-A (GB)
Title: Improvements in belt fasteners
IPC: F16G3/04
Filed: 1926-11-15
Abstract: 265,896. Lorentz, J. Nov. 15, 1926. Belt fastenings. - In hinged belt fastenings, a series of hooks of the form shown in Fig. 1 are strung upon a bolt h and hammered into each belt end f, Fig. 3, the bolt being then removed and replaced by a raw hide or fibre pin if desired. Each hook is stamped from a steel or other metal plate. The hook lengths and the distances between the barbed points c, d vary in the same belt end, so as to produce staggering of the points.
Patent GB-784366-A (GB)
Title: Improvements in concrete floors
IPC: E04C2/00
Filed: 1955-10-10
Abstract: 784,366. Floors; girders. SIMON, V. Oct. 10, 1955 [bct. 13, 1954; Nov. 23, 1954], No. 28745/55. Class 20(4) In a floor comprising prefabricated concrete girders, prefabricated floor blocks 5 supported by the girders, and a filling or decking 6 of concrete poured in situ over the girders and blocks, the girders comprise relatively flat concrete blocks 3 in which are embedded the lower portions of two longitudinal sheet-iron members 1 disposed in two parallel vertical planes with the lower edges of the members turned horizontally and outwardly. As shown, the upper portions of the members 1 which project above the blocks 3 are curved outwardly.
Patent GB-737779-A (GB)
Title: Improved cigarette and method and apparatus for making the same
IPC: A24C5/18
Filed: 1953-10-19
Abstract: 737,779. Cigarettes; cigarette-making machinery. AMERICAN MACHINE & FOUNDRY CO. Oct. 19, 1953 [Dec. 13, 1952], No. 28760/53. Class 130. A cigarette F, Fig. 13, having a dense tobacco portion D at one end is formed by temporarily inserting a stepped plunger 12, Fig. 11, into the other, e.g. mouth, end of the cigarette to effect the densifying and, preferably, to leave room for a filter plug 70 on plunger withdrawal. As shown, a doublelength piece of cigarette rod C is held in clamps 62, 63 spaced to allow its ultimate division into two cigarettes by a rotary knife and is acted on simultaneously at opposite ends by two plungers 12, 14 whose sliding mounts 56, 60 are actuated from a crankshaft 44 by connecting- rods 54, 58. Displacement of tobacco by the plungers is initially mainly radial and becomes progressively more axial as larger diameter steps thereof enter the rod C, the main bodies of the plungers finally entering sufficiently to clear end spaces for plugs 70. On plunger retraction the tobacco flows back into the spaces formed by the stepped portions of the plungers leaving the required central densification.
Patent GB-430630-A (GB)
Title: Disposal of gas works effluents and the like
IPC: C10K1/00
Filed: 1934-10-08
Abstract: 430,630. Evaporating ammoniacal liquor. HAYWARDS HEATH DISTRICT GAS CO., Mill Green Road, and WHITCHER, A. E., Alverstoke, both in Haywards Heath, Sussex. Oct. 8, 1934, No. 28771. Addition to 407,374. [Class 32] In an evaporation chamber, for the concentration of ammoniacal or like effluents, subdivided by a central wall 1 into longitudinally extending channels 2, 3, through which boiler or furnace flue gases flow to a chimney, the liquor is sprayed into the path of the gases from nozzles 8 on to the uppermost of each of a series of vertical groups of stepped, inclined plane elements 7, such as fireclay tiles, extending transversely to the gas stream.
Patent GB-169389-A (GB)
Title: Improved method and apparatus for carbonisation of subdivided fuel
IPC: C10B49/08
Filed: 1920-10-11
Abstract: 169,389. Underfeed Stoker Co., Ltd., and McEwen, S. Oct. 11, 1920. Addition to 154,253. Coking processes. -In a process of carbonizing powdered fuel as described in the parent Specification, in which the powdered fuel is carried in a current of gas into a carbonizing-zone maintained by burning a part of the gas produced, the whole of the hot gas from the carbonizing-chamber c is passed through a heat - recuperator i and a condenser, a part of the gas being ;passed back through and heated in the upper part of the recuperator and used to blow the powdered fuel from a hopper a into the carbonizing-chamber. Some of the heated gas is used to heat the chamber c by being burned at burners d which are supplied with air heated in the lower part of the recuperator. The carbonized product collects in a hopper g.
Patent GB-1353705-A (GB)
Title: Derailleur gear particularly for a bicycle
IPC: B62M9/1242
Filed: 1972-06-20
Abstract: 1353705 Change-speed gear J A HURET and R H M HURET 20 June 1972 [17 Sept 1971] 28843/72 Heading F2D In a chain-shift cycle gear of the kind in which guide and tension sprockets 6, 7 are carried by one link 19 of a deformable parallelogram, completed by swinging links 15, 16 and a stationary link 12, the link 19 has an integral pad 20, slightly offset from the plane of the guide and tension sprockets 6, 7, to assist in guiding the chain on to the driven sprockets 4 during a shift, the parallelogram being at an acute angle relative to the pad 20, so that as the parallelogram deforms the pad 20 moves both axially and radially with respect to the axis of the driven sprockets 4, although it always lies between the largest and smallest sprocket.
Patent GB-369897-A (GB)
Title: Remote control apparatus for radio receivers
IPC: H03J1/06
Filed: 1930-09-26
Abstract: 369,897. Wireless receiving apparatus. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Assignees of Reinken, L. W. ; 411, 85th Street, Brooklyn, New York, U.S.A.) Sept. 26, 1930, No. 28858. Convention date Sept. 26, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] A remote control system for a wireless receiver comprises a bridge arrangement, the out-of-balance current of which actuates a mechanical tuning control through relays, the control being coupled to one arm of the bridge so that the balance is restored when the tuning elements reach the desired position corresponding to the remote setting. In Fig. 1, the bridge is constituted by two potentiometers 9, 5, the latter being remote from the receiver while the arm 10 of potentiometer 9 is actuated simultaneously with the tuning elements 11 of the receiver by an eddy current motor 40 through a pulley and cord 13. The remote potentiometer 5 may be varied by a rotary slider 15 or by a series of contacts 14, the tappings from which may be pre-set on the potentiometer. A lead 7 is taken through a lamp indicator 16 and a polarized relay 17 to contact arm 9. According to the direction of current through 17, contact 21 or 22 is closed, thereby energizing relay 19 or' 20 and completing the supply circuit from plug 34 to motor coil 25 or 26 respectively. The bridge is energized by a part 29 of the anode battery of a high frequency amplifier 33 through a resistance 30, and is only balanced when the position of slider 15 or one of contacts 14 corresponds exactly to that of the arm 10. Out-of-balance current flowing in lead 7 causes rotation of motor 40 thereby actuating tuning elements 11 and potentiometer arm 10 until the balance is again restored. Cessation of current in 7 interrupts the supply from plug 34 by relay 17 and thereby de-energizes relay 36. This releases an armature 38 pivoted on a pendulum 37 which swings freely on the shaft of motor 40, the armature being drawn by a spring 41 into engagement with teeth on the motor 40 thereby bringing it to rest in a series of to and fro swings. As resistance 30 is in the gridcathode circuit of valve 33, the initial out-ofbalance current due to tuning imposes a prohibitive bias on the amplifier so as to render the receiver inoperative during tuning. Fig. 3 shows a bridge system employing a valve 50 in one arm. Relay 17 operates, as before, by unbalanced currents in the bridge 5, 9, current in one direction causing increase in negative biasing potential of the grid of valve 50, while opposite currents reduce bias due to battery 51. In the first case the valve acts as an open circuit and currents flow downwards through 17, while in the second case the valve acts like a short circuit and current flows upwards through 17. A similar arrangement employing two valves in push-pull is referred to, Fig. 4 (not shown), the relay 17 having a double winding.
Patent GB-1298127-A (GB)
Title: Electromagnetic instrument
Inventor: SAUVIGNET HENRI
IPC: G01R5/04
Filed: 1970-06-15
Abstract: 1298127 Moving coil electric meters COMPAGNIE DES COMPTEURS 15 June 1970 [13 June 1969] 28888/70 Heading G1Q A moving coil meter of the long-scale type comprises an annular permanent magnet 2, a first pole piece 3 constituted by two substantially identical halves assembled together to form outer and inner annuli 21A, B and 20A, B spaced by an annular slot 22, a second pole piece 4 having a portion axially facing the inner annulus of the first pole piece, and a rotatable coil 13 encircling the inner annulus 20A, B so as to move through the annular slot 22. An adjustable triangular magnetic block 28 shunts the pole pieces 3, 4. The magnet 2 and pole pieces 3, 4 are held in assembled relationship by flanges 35, 7 on a body member 6. Bearings 10, 11 for the spindle 9 carrying the coil 13 are mounted on an extension 12 of body member 6 and on pole piece 4 respectively, the upper bearing 10 being provided with a regulating lever 15. Alternatively the coil may be torsionally suspended.
Patent GB-411737-A (GB)
Title: Photographic film cameras
IPC: G03B13/20
Filed: 1933-10-19
Abstract: 411,737. Photographic cameras. VOIGTLANDER & SOHN AKT.-GES., 7, Campestrasse, Brunswick, Germany. Oct. 19, 1933, No. 28936. Convention date, Oct. 27, 1932. [Class 98 (i).] A roll-film box camera comprises a finder chamber above the exposure chamber having an inclined reflector, and upright film spools located laterally of the exposure lens behind the front wall of the case, and the inclined reflector of the finder is reduced in breadth at its front bottom part to provide sufficient space for mounting the top of the film spools and the bearings therefor. As shown, the camera comprises a front wall; four walls flaring outwardly and rearwardly therefrom to form an exposure chamber, and a partition extending rearwardly and upwardly from the top of the exposure chamber at an angle of 45‹, on which partition is mounted a reflector 151 co-operating with a focusing screen at the top of the case. A collapsable hood is provided for inspection of the screen. The tubes of the camera and finder lenses 8, 7 are rigidly connected by a plate ensuring simultaneous axial displacement. A slide mounted for vertical displacement in guides on the camera front has elongated holes through which pass the lens tubes and is integral with ears 20 having inclined cam slots engaging pins 23 projecting from both sides of the lens mountings. For shifting the slide for focusing a disc 24 is provided, which is mounted on an arbor 25 and at the rear of which is a disc having an eccentric pin 27 engaging in a slot 28 of an ear 29 projecting laterally from the slide. A pointer 32 co-operates with graduations on the disc 24, which is rotated through bevel gear from the milled disc 36. The film spools 37 are mounted in chambers 38 disposed at the side of the exposure chamber and provided with hinged lids 39, 391 overlapping at the back of the case. The chambers 38 are closed at the top by horizontal walls 45 above which are chambers 46, one containing the winding-key 50 carrying a spring-pressed pawl engaging a ratchet secured to the winding centre 48, and the other containing a lever fixed to the spool centre of the feed spool. The space between the exposure and finder chambers is used for mounting a spare spool between springs, and the spaces at the side of the finder chamber for storing a yellow screen and an auxiliary lens. The space below the exposure chamber may also be employed for storage purposes. Inclined mirrors 58, 63 permit of inspection of the setting of the iris-diaphragm and of the shutter from above.
Patent GB-706978-A (GB)
Title: Wire unwinding device for winding machines
IPC: H01F41/06
Filed: 1950-11-27
Abstract: 706,978. Creels for wire winding machines. LICENTIA PATENT-VERWALTUNGS-GES. Nov. 27, 1950 [Oct. 1, 1948; July 21, 1949], No. 29024/50. Class 120(2) For maintaining wire tension constant in a creel device for winding machines, the braking moment of a brake 14 acting through a brake lever 13 on the delivery spool 2 is reduced when the supply on spool 2 decreases or when the wire tension increases, and is increased when the wire tension decreases, spool 2 and the brake drum 6, together with the bearing 12 of lever 13, being together mounted on a first supporting lever 5, and a wire guide pulley 8 on a second supporting lever 9, and brake lever 13 being in tensional connection with lever 9, preferably through a tie rod 15, in such manner that a reduction in weight of the spool or an increase in the wire tension acting through pulley 8, is effective to reduce the braking moment on spool 2, and that a reduction in the wire tension is effective to increase the.braking moment on the spool. As shown, lever 5 is pivoted at 3 and suspended from a spring 4, while lever 9 is pivoted at 10 and is counterbalanced by a spring 11. As the supply of wire on reel 2 is reduced, the decreasing weight of the reel causes lever 5 to rise about pivot 3, the consequent movement of lever 13 reducing the pressure of shoe 14 on brake drum 6. Any movement of roller 8, due to increase or decrease in wire tension, acts through rod 15 and brake lever 13 to cause a compensatory decrease or increase of brake pressure. Springs 4 and 11 are adjustable, or the levers may be balanced by adjustable weights; the effect of spring 4 may be adjusted, for varying sizes and weights of reel, by displacing the position of its attachment to lever 5. In an alternative arrangement, brake shoe 14 is replaced by an adjustable brake band controlled by lever 13.
Patent GB-210153-A (GB)
Title: Improvements in the manufacture of lime
IPC: C04B2/00
Filed: 1922-10-25
Abstract: Limestone or chalk, preferably having a high content of calcium carbonate such as 99.5 per cent, is fed into the top of a tall continuous kiln preferably of the kind described in Specification 13154/01, [Class 51, Furnaces and kilns], together with sufficient fuel to bring the temperature to 2000-2200 DEG  F. so as to cause semi-vitrification.  The product is passed through water and then conveyed to a shed and stored in heaps.  After a time it breaks up into a fine powder which is finally sifted.
Patent GB-954542-A (GB)
Title: Improved nuclear power reactor
Inventor: BELL ALAN
IPC: G21C1/10
Filed: 1959-08-25
Abstract: 954,542. Reactors. FOSTER WHEELER Ltd. Aug. 18, 1960 [Aug. 25, 1959], No. 29069/59. Heading G6C. A heterogeneous reactor has fuel elements in tubes surrounded by water moderator in a pressure vessel and is cooled by saturated steam flowing over the fuel elements, the moderator being at the temperature and pressure of the steam entering the tubes. As shown in a reactor with re-entrant tubes, steam flows down inside outer tubes 24 of Zr or zircalloy, then up inside stainless steel inner tubes 30; drain lines 26 are provided. There are tubes 42 in which is moderator whose level is varied to control the reactor. If the same type of water is used as coolant and moderator, tubes 42 and plate 18 may be omitted. The steam may be produced by using some fuel elements to boil the moderator. Thermal shields 50 are provided. The moderator of the reactor shown is kept at the saturation temperature of the coolant steam by cooling in an external heat exchanger.