baber/WOPTO huggingface dataset:
Patent GB-1515955-A (GB)
Title: Centrifugal pumps and compressors of the pitot type
IPC: F04D1/12
Filed: 1976-06-26
Abstract: 1515955 Centrifugal pumps and compressors KOBE Inc 26 June 1976 26719/76 Heading F1C In a centrifugal pump or compressor of the type comprising a stationary pitot tube 60, Fig. 2, scooping fluid from a rotary chamber 24, the inlet 62 of the pitot tube is followed by a divergent passage portion 72 which ensures a substantially constant flow-rate over a wide range of pressure. The radial passage 64 of each pitot tube leads to an individual sector 56 of the axial discharge duct 54. In the case of a fuel pump, each sector 56 is connected to an individual fuel nozzle. The pitot tubes 60 may all be in the same transverse plane as shown or may be staggered axially, e.g. in two groups of three or three groups of two. The ratio of the flow area at the inlet 62b, Fig. 6, of a pitot tube 60b to the flow area at the downstream end of the divergent passage portion 72b may be varied by means of a cone 76b which is movable axially via a rod 78b by means of a cam 88b and a follower 84b, the cam being rotatable by bevel gearing 92b, 94b.
Patent GB-616480-A (GB)
Title: Improvements in or relating to automatic differential pressure control devices
IPC: G05D16/20
Filed: 1946-09-05
Abstract: 616,480. Automatic control systems. BEECHAM RESEARCH LABORATORIES, Ltd., and FRANK, S. G. F. Sept. 5, 1946, No. 26752. [Class 38 (iv)] Fluid pressure &c.-An automatic differential pressure control device comprises a U-tube containing electrically conductive liquid, with its limbs connected to the respective pressures, contacts 8 in each limb arranged to contact the liquid surface, and liquid containers 4 also connected to the respective pressures (in restricted communication with each other through valves 24), and containing one or more floats 10 suspending the contacts 8. The containers 24 may as shown surround the U-tube limbs and communicate with each other through the bottom of the U-tube which may be of rubber to permit relative adjustment of the height of the limbs. The contacts 8 of limbs A and B of the system respectively operate means, e.g. a motor, to decrease and increase respectively the pressure difference when contact is made with the liquid, the control circuits being completed through a common intermediate lead 12. The floats introduce a delay acting in opposition to the level restoring means to prevent overcorrection by the control the opposition decreasing in proportion as. the system is near equilibrium. The floats and contacts 8 are suspended from cross-bars 11 connected to springs 9 partly under tension. In Fig. 2 (not shown) the level of liquid in a tank is maintained constant by one limb of the system, the other limb being open to atmosphere. The device may be adapted to control liquid density or fluid flow.
Patent GB-1522832-A (GB)
Title: Gunnery training aids having screen assemblies
IPC: F41J1/00
Filed: 1975-06-24
Abstract: 1522832 Projection screen assembly RFD SYSTEMS ENG Ltd 29 Oct 1975 [24 June 1975] 26785/75 Heading G2X [Also in Division F3] A gunnery training aid comprising (a) a projector 1, (b) a screen assembly 2 on to which a moving image can be projected as a target, the assembly 2 comprising two sheets 7, 10 mounted for movement between feed rolls 8, 12 and takeup rollers 9, 13 respectively, the sheets being in substantially parallel planes and spaced apart by a small distance to form a screen of two overlapping layers over the screen area, (c) means (e.g. motor 14) for driving the take-up rollers to move the sheets in different directions to alter the overlapping areas, and (d) means (e.g. in console 5) for energizing the drive means in response to firing a bullet through the screen. Preferably the two sheets are white and movable in opposite horizontal directions; a third sheet 18 which is black, movable vertically downwards and positioned behind the other sheets may also be provided. Bullet holes are inspected by shining a light from the back, and then the sheets are moved so that the holes are no longer aligned and hence not visible.
Patent GB-449514-A (GB)
Title: Suction actuated governors or regulating devices for internal combustion engines
IPC: F02D9/00
Filed: 1934-09-18
Abstract: 449,514. Speed governors. SOC. GENERALE DES CARBURATEURS ZENITH, 10, Rue Petitot, Geneva, Switzerland. Sept. 18, 1934, No. 26813. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 19, 1935]. [Class 57] To prevent the speed of an internal-combustion engine exceeding a predetermined value, a throttle valve 2, or other means for controlling the fuel supply, is connected to a piston 11, one side of which is subjected through pipe 14 to induction pressure and the other side may be subjected to atmospheric pressure through a passage 15 controlled by a valve 18. The valve 18 is integral with a piston 17 loaded by a spring 27 and by means of passage 16 is subjected to induction pressure. The pistons 11, 17 are loose fits in their cylinders and the piston 11 is loaded by springs 25, 26 the latter not coming into action until the piston stroke is advanced. On the predetermined speed being reached the valve 18 opens and admits atmospheric pressure which causes the valve 2 to close. When the valve 2 is almost fully closed the piston 11 covers the outlet of the pipe 14 or a port 21 is opened to admit air through port 22 to the cylinder. The lever 5 for manual actuation is connected to a lever 4 loosely mounted upon the spindle of the valve 2 and has a pin 7 engaging a projection 8 on the lever 3. Instead of the ports 21, 22, the rod 19 may have a groove of varying depth to admit air to the cylinder.
Patent GB-777417-A (GB)
Title: Improvements in or relating to processes for activating the positive electrodes of alkaline accumulators
Inventor: WINKLER HANS
IPC: H01M4/32
Filed: 1955-09-20
Abstract: 777,417. Batteries. VEB GRUBENLAMPENWERKE. Sept. 20, 1955, No. 26860/55. Addition to 763,452. Class 53. The active material of the positive electrode of an alkaline accumulator consists of a hydroxide which is activated by being moistened with a solution of cobalt sulphate and then with a solution of sodium or potassium hydroxide or carbonate and finally washed with water.
Patent GB-645742-A (GB)
Title: Improvements in buckets, more particularly for acids and other corrosive liquids
IPC: B65D85/84
Filed: 1948-10-15
Abstract: A bucket for corrosive liquids is made of moulded, vulcanized natural or synthetic rubber reinforced by natural or synthetic fibres &c. e.g. by twisted or doubled threads recovered from waste rubber tyres.
Patent GB-1307873-A (GB)
Title: Method and apparatus for fluid catalytic cracking
IPC: B01J8/26
Filed: 1970-06-04
Abstract: 1307873 Catalytic cracking TEXACO DEVELOPMENT CORP 4 June 1970 [29 July 1969] 26930/70 Heading C5E [Also in Division B1] In a catalytic cracking process carried out in reactor separator 16, in which process used catalyst from fluidized bed 20 is stripped with steam in stripper 50, steam and displaced hydrocarbons are passed from stripper 50 through pipe 60 into the reactor separator 16. The catalyst from stripper 50 is passed to regenerator 68 where it is regenerated by gas combustion, and regenerated catalyst is returned via conduits 14 and 24 as two streams and directed downwardly in reactor separator 16 through inlets 18 and 28. The cracking of a virgin gas oil is described.
Patent GB-1480133-A (GB)
Title: Cyanine dyes and their use as spectral sensitizers in direct positive photographic materials
IPC: C09B23/00
Filed: 1974-06-18
Abstract: Novel direct-positive photosensitive silver halide emulsions contain a sensitising quantity of at least one cyanine dye derived from 5- or 6-membered heterocyclic nuclei, wherein the said nuclei are linked by a methine chain, at least one of the said heterocyclic nuclei being a nucleus from the benzoxazole series or benzothiazole series, having at least two halogen atoms as substituents on the benzene ring. These emulsions are used in photographic elements which contain at least one layer of these novel emulsions. The cyanine dyes are used as spectral sensitizers in direct-positive photographic materials.
Patent GB-818633-A (GB)
Title: Improvements relating to the sanding of sludge drying beds
IPC: C02F11/16
Filed: 1955-09-22
Abstract: 818,633. Filters. HARTLEY, C. J. Nov. 22, 1956 [Sept. 22, 1955], No.27048/55. Class 46. [Also in Group XXX] Sand is delivered by a tip-wagon 20 into a hopper 21 whence it is delivered to a tank 10 by a bucket elevator 22, there to be mixed by a stirring device 24, 25 with water admitted through a valved pipe 30 (not shown). The mixture is forced by a pump 35 along a pipe 38 extending along one side of a sludge-drying bed 12, 13. Along the pipe 38 there are provided outlet unions to which flexible hoses 40 may be fitted by bayonet or like connections for ejecting the semi-liquid sand on to a layer of clinker 15 forming the base of the bed to form a layer 16. The liquid from the sand drains away through the clinker layer 15. Sludge to be dried is fed through valved ports 45 from a channel extending along the far side of the bed. A single portable hose may be used instead of the individual hoses. The sand may be levelled by a vertically-adjustable screeder carried on a travelling gantry. The travelling gantry may also carry means for mechanical sludge-lifting as described in Specifications 723,651 and 723,709. The bed may be divided into sections, each fed by one hose.
Patent GB-989500-A (GB)
Title: A magnetic head and an iron alloy therefor
IPC: G11B5/21
Filed: 1962-07-13
Abstract: A magnetic recording and playback head has a pair of pole pieces composed of an alloy consisting of Al 5-8%, Si 8-11%, the remainder apart from impurities being iron. The initial permeability of the alloy is about 30,000 and the hardness 45-50 on the Rockwell C scale.
Patent GB-1268882-A (GB)
Title: Tiltable support for load-bearing structures, particularly bridges
IPC: E01D19/04
Filed: 1969-05-29
Abstract: 1,268,882. Bridge bearings. ORENSTEIN & KOPPEL A.G. 29 May, 1969 [5 June, 1968], No. 27208/69. Headings F2A and F2S. A non-rigid mounting/tiltable thrust bearing, e.g. for a bridge comprises a resiliently or plastically deformable pressure pad 2 seated in a container 1a, 1b, which is closed by a load bearing pressure plate 3. According to the invention, the pad 2 is sealed by a sealing member 4 (11, Fig. 4) which consists of a sealing ring 6 and a plurality of plates 7, 7a, 8 of the same total thickness as the ring and fitted inside it, one of the plates, 8, being of resiliently or plastically deformable material, and another, 7, being non-deformable and disposed between the resiliently or plastically deformable plate 8 and the pressure pad. The sealing ring 6 may be of rectangular X-section (Figs. 3, 6) or may have one recess (Figs. 2, 4 and 5) or two recesses as shown. The deformable disc may be of smaller (as shown) or larger diameter (Fig. 2, not shown) than the non-deformable disc(s). A lubricating layer may be inserted between the sealing mem- and the pressure plate, to facilitate sliding of one relative to the other. Low friction layers can be fitted between the pressure pad and the container wall 1c. Recesses 3a in the pressure plate allow it to tilt. Under heavy pressures the fully enclosed pressure pad acts like a viscous fluid.
Patent GB-139741-A (GB)
Title: Improvements in fire arches for boilers and steam generating plants
IPC: F23M5/06
Filed: 1919-11-05
Abstract: 139,741. Liptak, M. Nov. 5, 1919. Arches.-The arch of a boiler fire-box is constructed of blocks depending from laterally-spaced longitudinal beams suspended by hangers from transverse supporting-beams. The blocks are recessed at the sides to accommodate supplementary blocks which are hung from the lower portions of the longitudinal beams. A special form of block is provided to replace blocks which have been broken or burnt away. The beams 11 which carry the blocks 14 are provided, as shown in Figs. 1 and 2, with detachable extensions 11<a>, the beams 11 and extensions 11<a> being provided with T- shaped webs 12, 12a adapted to engage with hangers 13 supported by the beam 10. The blocks 14 have flanges 14<b> which rest on the upper flanges of the beams 11, the lower portions of which are protected by supplementary blocks 15 having oblique channels at the sides adapted to engage wit.h upturned flanges on the beams 11. The blocks 14, when burnt out or broken, are replaced by blocks 16, Figs. 1 and 4<a>, having projecting flanges 16<b> adapted to be passed upwardly between the supplementary blocks 15 and hung from the beams 11 by short metal bars 17 which rest on the beams. The beam extensions 11<a> carry corner blocks 18, shown separately in Fig. 6, recessed at the sides to receive supplementary blocks 20, Figs. 1 and 7, having channels, which terminate short of their exposed ends, adapted to engage with the, lower portions of the beam extensions 11<a>. The spaces between the lower portions of the blocks 18 are closed by filling-blocks 19, Figs. 1 and 8, having upper flanges 19a which rest on the ledges 18<c> of the blocks 18.
Patent GB-937687-A (GB)
Title: Improvements in or relating to tools for extracting flexible rings
Inventor: VINCE REGINALD THOMAS
IPC: B25B27/00
Filed: 1961-07-27
Abstract: 937,687. Extracting flexible rings. ROLLSROYCE Ltd. July 26, 1962 [July 27, 1961], No. 27336/61. Class 61. [Also in Group XXVI] A tool 10 for extracting a flexible ring, such as a sealing ring 20, from a groove 21 comprises a locating member 11, and a rod 14 offset from the longitudinal axis of the member, one end of the rod being provided with a hook or hooks 15 adapted, when relative rotation takes place between the rod and the locating member, to be moved to a position in which one end or ends thereof lies outside the cross-sectional area of the locating member so as to pierce the sealing ring and adapted, after piercing the sealing ring, to be moved so as to lie within the cross-sectional area of the member. The locating member 11 is in the form of a tube closed at each end and provided with a knurled handle 19. The rod 14 is also provided with a knurled handle 17 and relative rotation between the rod and tube is limited to one direction only by means of a spring 18. The hook 15 is fixed in the rod so that when the tube 11 is located in a bore as shown in Fig. 2, and the rod rotated, the hook pierces the sealing ring, continued rotation causing the latter to. be withdrawn from part of the groove, the remaining portion of the ring being removed from the groove when the tube is withdrawn from the bore. In a modification a double-pronged hook may be used.
Patent GB-1476373-A (GB)
Title: Push-pull amplifier arrangement
IPC: H03F3/213
Filed: 1974-06-20
Abstract: 1476373 Transistor amplifiers; frame timebase circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 June 1974 [23 June 1973 11 Dec 1973 8 March 1974] 27385/74 Heading H3T The power output of an integrated single ended push-pull amplifier output stage 2, 3 as shown for a frame time base, is increased by adding an external transistor 17 to form with one of the output transistors 2 a push-pull amplifier, the other transistor 3 of the integrated circuit providing the base current for the external transistor. Transistor 2 may be driven harder because transistor 3 dissipates little power. Biassing diodes 18 may be provided toreduce cross-over distortion and these may be by-passed for base current by a diode-resistor combination 26, 30. In Fig. 3 not shown the base of transistor 7 is driven by the emitter of 3 and an out-of-phase waveform connecting voltage may be derived from a series resistor between 15 and 16. The invention could be applied to a complementary stage. A.C. and D.C. feedback circuits are shown.
Patent GB-208611-A (GB)
Title: Improvements in or relating to automatic musical instruments
IPC: G10F5/06
Filed: 1922-10-10
Abstract: 208,611. Wade, H., (Acolian Co.). Oct. 10, 1922. Ratchet gearing.-A handle operating two pawls engaging ratchet teeth gives a step-by-step movement to the sliding part of a transposing trackerbar of an automatic musical instrument. The sliding part is automatically locked in a transposing position by means which are releasable either at will or automatically on rewinding the roll, the sliding part then moving back to its neutral position. The slide 32 carries a rack with right and left-hand ratchet teeth 36, 37 for engagement by pawls 43 pivoted on a forwardly projecting handle 39 pivoted at 40 on a bracket 41, as shown in under-plan in Fig. 4. Two locking- levers 44, pivoted at 45 on the bracket 41, are normally pressed by a circular spring 46 into engagement with the rack, and carry weak springs 52 bearing against the pawls keeping pins on the pawls seated in recesses in the rear end 39 of the handle. On rocking the handle, say, to the right, the rear end of the handle presses the right-hand pawl against the locking-lever to remove the latter from the rack. and the left-hand pawl is put into engagement with the rack and moves the slide 32 one step to the left. This movement takes place against the action of one of a pair of springs (not shown), which spring restores the slide to neutral position on subsequent release of the left-hand locking-lever 44. This release is obtained either at will by rocking the handle 39 to the left, i.e. in the opposite direction; or automatically on the operation of a clutch-shaft 12, Fig. '2, a bell-crank lever 58, 55 with cam-faces 55<a> being turned to draw the rear ends of the locking-levers 44 towards one another.
Patent GB-603379-A (GB)
Title: Improved process for treating wool to reduce its shrinking and felting properties
IPC: D06M11/50
Filed: 1945-10-19
Abstract: The felting and shrinking property of wool is reduced by treatment of the wool or woollen goods in a bath comprising, for every 100 lbs. of wool to be treated, a solution of 4 lbs. of potassium permanganate in 250 gallons of water to which about 7.7 lbs. of 66 per cent commercial sulphuric acid is added.  The wool, which may be loose, tops, yarns, piece or manufactured goods, is kept immersed in the bath until the reaction has proceeded to the desired extent, i.e. for about 30 minutes.  During the treatment manganese dioxide is deposited on or formed within the material, imparting to it a brown colour.  This may be removed readily by treatment with any of the usual reagents, sulphurous acid, sodium bisulphite, hydrogen peroxide, oxalic acid and the like. Hydrochloric acid in the form of gas or solution may be used: in this case the chlorine evolved will impart further shrinkproofing to the wool as is well known, so that in this case a smaller quantity of permanganate may be used to achieve the desired result.
Patent GB-645413-A (GB)
Title: Stilbene derivatives for use in whitening textile materials
Inventor: WILSON ROBERT HUGH
Filed: 1947-10-14
Abstract: Stilbene derivatives for use in whitening textiles are manufactured by reacting two molecular proportions of cyanuric chloride with, in any order, one molecular proportion of 4 : 41-diaminostilbene-2 : 21-disulphonic acid or a salt thereof, two of dimethylamine or morpholine and two of a primary or secondary aliphatic amine free from hydroxy groups or of a primary aromatic amine which is either free from substituents or carries in the nucleus one or more alkyl radicals and/or one radical selected from methoxy and sulphonamido. In examples, a suspension of 1 mol. of the disodium salt of 4 : 41 - bis - (211 : 411 - dichloro - 111 : 311 : 511 - triazyl - 611) - diaminostilbene - 2 : 21 - disulphonic acid, prepared by condensing 1 mol. of 4 : 41-diaminostilbene - 2 : 21 - disulphonic acid with 2 mols. of cyanuric chloride in aqueous acetone in the presence of caustic soda, is heated with 2 mols. of aniline or m-toluidine with the addition of caustic soda and the product is heated with 4 mols. of dimethylamine or morpholine.  An additional aromatic amine specified is p-xylidine.  Specifications 495,479 and 616,523 are referred to.  Samples have been furnished under Sect. 2 (5) of compounds prepared by: (A) heating 1 mol. of the disodium salt of 4 : 41-bis-(211 : 411-dichloro - 111 : 311 : 511 - triazyl - 611) - diaminostilbene-2 : 21-disulphonic acid with 2 mols. of dimethylamine and the product with 2 mols. of the hydrochloride of p-aminobenzenesulphonamide, both steps with addition of caustic soda; (B) replacing the last reactant in (A) by p-anisidine hydrochloride; (c) heating the starting material of (1) with 4 mols. of dimethylamine; (D) heating, in aqueous acetone with the addition of caustic soda, 2 mols. of cyanuric chloride with 2 mols. of morpholine, the product with 1 mol. of 4 : 41-diaminostilbene-2 : 21-disulphonic acid and the product of this latter condensation with 2 mols. of p-anisidine.ALSO:As whitening agents for textile materials may be employed the condensation products of two molecular proportions of cyanuric chloride with one of 4 : 41-diaminostilbene-2 : 21-disulphonic acid or a salt thereof, two of dimethylamine or morpholine and two of a primary or secondary aliphatic amine free from hydroxy groups or of a primary aromatic amine which is either free from substituents or carries in the nucleus one or more alkyl radicals and/or one radical selected from methoxy and sulphonamido. Specifications 495,479 and 616,523 are referred to.
Patent GB-993313-A (GB)
Title: A method of, and apparatus for, treating rotationally symmetric glass articles in anannular burner
IPC: C03B29/00
Filed: 1961-07-28
Abstract: <PICT:0993313/C1/1> <PICT:0993313/C1/2> The invention relates to a method of operating on a rotating glass body (e.g. in the process of cutting off the "lost top" or for burning in the brim) which employs a holder for holding the ware in an annular burner so that the axis thereof coincides substantially with the axis of the annular burner during a relative rotation between the glassware and the burner.  The glass object is held by suction by its lower end in saucer-shaped plate 3, Fig. 1.  An aperture 9 is connected to vacuum duct 5, 6, 7, 8, extending through the holder.  The supporting table 4 attached to plate 3 is suspended by three equidistant coupling rods (e.g. 14) from holder 13, the rods being connected at both ends by universal joints to holder 13 and table 4 respectively, and thus is capable of swinging under holder 13.  A coupling plate 10 bearing against foot plate 12 of the holder follows this swinging movement as it is coupled by universal joint 11 to plate 3.  The holder and annular burner are displaced in the direction of their common axis so the object can be inserted in the centring ring 33.  Situated in ring 33 is adjusting ring 16, Fig. 2, movable over the distance in cleft 18 by handle 17.  Equidistant vertical shafts 19, 20, 21 with arms 22, 23, 24 are driven by adjusting ring 16 through slots 25, 26, 27 which engage cams 28, 29, 30 of the arms.  Arms 31, 32 in the other side of the centre of rotation constitute adjusting fingers, the tips 34, 35, 36 of which contact the circumference of the object suspended in holder 2 by operating handle 17.  The centre of the circle through contacting tips 34, 35, 36 lies on the axis of rotation of holder 2, thus the object is brought into a position in which the circumference practically coincides with a circle having its centre in the axis of rotation of holder 2.  The bearing plate 4 follows this adjustment as it slides with coupling plate 10 along footplate 12.  The coupling plate 10 and supporting table 4 are held in the adjusted position by suction through cock 37 in branch duct 38.  The centring arms are retracted, and ring 33 moved sidewardly, so the centred object can be moved axially into the plane of the annular burner 1.