baber/WOPTO huggingface dataset:
Patent GB-810833-A (GB)
Title: Improvements in or relating to the tautening of filaments of electronic discharge tubes
IPC: H01J1/18
Filed: 1955-10-20
Abstract: 810,833. Discharge apparatus. TELEFUNKEN G.m.b.H. Oct. 20, 1955 [Oct. 22, 1954], No. 29992/55. Class 39(1). A tautening arrangement for a filament, e.g. the cathode filament, of a discharge device comprises a torsion spring 19 encircling one limb 17 of a U-shaped spring member 16, Fig. 1, one end 19<SP>1</SP> of the spring bearing on, or welded to, the other limb 20 and the other end 19<SP>11</SP> being welded to a strengthening wire 13 welded to the filament 12 passing through triangular notches 10 and 11 in insulating discs 2 and 3 and welded at its other end to a strengthening wire 14 welded to a fixed supply lead 15. The limb 17 is welded at right angles to a support rod 4 which forms another supply lead to the filament 12. The filament 12 is tautened by rotating the U-shaped member 16, through say 90 degrees, as shown in Fig. 2, thus tensioning the spring 19 and causing permanent distortion of the member 16. The member 16 can be rotated to a predetermined position by means of a gauge. The insulating discs 2 and 3 are at the ends of a cylindrical anode 1 and have protruding through them electrode support rods 7, &c. A U-shaped filament may be used. In a modification the limb 17 is welded at right angles to one arm of a right angled bracket the other arm of which is welded to the rod 4. In a further modification the U-shaped member is stamped out of sheet metal and is attached to the rod 4 by a small strip of metal bent over to enclose a right angle in its initial position.
Patent GB-1461704-A (GB)
Title: Testing of antibiotics
IPC: C12M1/20
Filed: 1974-07-05
Abstract: 1461704 Antibiotic sensitivity test device V E GILBERT 5 July 1974 30031/74 Heading G1B [Also in Division C6]  A compartmented tray useful in evaluating the sensitivity of micro-organisms to antibiotics (and other antimicrobial agents) consists essentially of a plastics or glass plate 2, Fig. 1, having an elongate upwardly open specimen receiving trough 70 and many integrally formed test wells 4-30, providing in the illustration for the testing of 14 antibiotics. In each row the test wells in line S contain nutrient medium only, whereas those in lines A to D include increasing concentrations of the antibiotic. The wells are inoculated by dipping an absorbent strip of material 94 of an applicator 86, Figs. 4 and 5, into the specimen in trough 70 and then passing the absorbent strip over the well assembly in a single rapid stroke. The head 88 and handle 90 of the applicator may rest in the trough and on the . flat portion 96 of the plate 2, respectively. Figs. 8 to 10 (not shown) depict an alternative form of applicator. In this case the plate is provided with a recessed channel (130) to receive the handle (118). The peripheral wall 74, Fig. 1, of the tray and barriers 40-66 between the rows of wells serve to prevent undesired spillage of the organismcontaining broth. The tray is surmounted by a cover 98, Fig. 7, normally including a sealing tape 104. A gripping tab may, however, be provided to facilitate removal of the tape where necessary e.g. for anaerobic tests carried out in a chamber. An alternative construction of sealing arrangement between the cover and plate is depicted in Fig. 12 (not shown). In the embodiment shown in Fig. 11 the applicator 160 is fitted to the cover 146, and the plate and cover are held as the result of a snap fit engagement between cover flange 148 and plate flange 150. In order to preserve sterility prior to use the wells may be protected by a removable plastics film or metal foil web and the entire assembly, including the applicator, kept in a sealed pouch of plastics and/or metal foil.
Patent GB-920196-A (GB)
Title: Improvements in disc brake assemblies
Inventor: TAYLOR MAURICE
IPC: F16D55/228
Filed: 1958-09-22
Abstract: 920,196. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 22, 1959 [Sept. 22, 1958], No. 30228/58. Class 103 (1). In a calliper disc-brake assembly a fixed U-shaped pad housing 1 straddles a minor portion of the brake disc 5, the limbs of the housing are formed with openings to receive brake pads 7 which are detachably mounted therein and piston and cylinder assemblies 8 are provided in a U-shaped calliper housing which embraces the pad housing 1 such that when pad replacement is necessary the calliper housing is movable into a position (as shown in dotted lines in Fig. 6) to uncover the pad housing and permit access to the brake pads 7. Since the brake torque reaction will be taken entirely by the pad housing 1 the latter is preferably made of steel whilst the callipar housing may be constructed from light alloy.
Patent GB-1519143-A (GB)
Title: Electronic fuel control for a gas turbine engine
IPC: F02C9/28
Filed: 1974-07-09
Abstract: 1519143 Automatic control of speed of gas turbines LUCAS INDUSTRIES Ltd 2 July 1975 [9 July 1974] 30314/74 Headings G3N and G3R A feed control system for a gas turbine engine including a gas generator and separate power turbine includes comparators for comparing the actual and demanded speeds of both the gas generator and power turbine to provide speed error signals of which the lower is passed through an acceleration limiter to an integrator whose output is compared with the gas generator actual speed signal to produce an error signal used to vary the fuel supply to the engine. In the Figure the changeover switches 27, 29, 46 in the control system are shown positioned for starting the engine and should be reversed for understanding the way in which the running control operates. In operation the gas generator speed is controlled by throttle 18 and supplies a demand signal for comparison in 22 with the actual gas generator speed NG to produce an error signal which is applied to 'lowest wins' gate 39. The power turbine speed demand is set by control 19 which is compared with the actual speed NF in comparator 32 to provide a second signal to gate 39. The third input PG represents the free turbine torque and is used to provide a limiting signal. The smallest signal passed by gate 39 to acceleration limiter 40 and integrator 41 where it provides a signal which is compared with the gas generator speed signal to give a fuel demand signal which after amplification controls the flow control valve 13. When the engine is started switches 27, 29, 46 are in the positions shown so that the control 19 is not functional until bi-stable 9 operates when the output of comparator 20 changes sign. When the gas generator accelerates switch 46 changes over and control of the fuel is from signals developed by comparators 22, 32 with the latter receiving signals from function generator 20 and the highest wins switch 34 and comparator 33. The related Specification 1519144 claims the arrangement of gate 34 and comparator 33 which provides decceleration of the engine on failure of the turbine speed signal.
Patent GB-241048-A (GB)
Title: Improvements in opening and closing means for pivoted windows
IPC: E05F17/00
Filed: 1924-12-17
Abstract: 241,048. Jones, A. Dec. 17, 1924. Pivoted-window opening and closing apparatus. -Sashes hung, on central pivots are operated by worm gear acting on a squared shaft f passing through the pivot d', the actuating mechanism being concealed in the frame. The shaft f is rotated by a worm wheel driven by a worm on the shaft j which is rotated by similar worm and wheel and handle n. The shafts j and f and the worm gear are sunk in the frame and covered by facing strips. The sash pivot consists of a, plate screwed to the sash and provided with a boss d' pivoting in a socket in the frame. The worm and wheel are housed in intersecting cylindrical bores in a casing and each is carried between a fixed annular shoulder and a screwed plug. Two windows at the same level may be operated by the same shaft and worm gear. The frame stops allow the sashes nearly to reverse on their pivots for cleaning &c. The operating mechanisms for sashes one below the other are on opposite sides of the frame.
Patent GB-1235195-A (GB)
Title: Method and apparatus for continuous lamination
Inventor: GUYER HUBERT AMOS
IPC: B32B37/00
Filed: 1968-06-26
Abstract: 1,235,195. Laminating apparatus. H. A. GUYER. 26 June, 1968 [30 June, 1967], No. 30364/68. Heading B5N. An apparatus for continuously advancing an assembly of laminae and forming a laminate therefrom comprises first means for simultaneously exerting pressure on an upper and a lower surface of said assembly and while it is under pressure for moving said assembly away from an inlet towards an outlet of said apparatus, second means for activating said first means in a continuous, repetitive manner and third means operable to automatically exert pressure on said surfaces upon the deactivation of said first means and which automatically ceases to exert pressure on said surfaces upon the activation of said first means. The embodiment shown in Fig. 1 comprises an upper pressure assembly 10 fixed in position and a lower pressure assembly 12 mounted on springs 24 so as to float with respect to frame member 16, the sheets to be laminated being placed between endless belts 28 and 30, each pressure assembly including a centre pressure bar 36 fixedly mounted, lifter bars 38 being mounted on each side of each pressure bar 36, each pressure bar having journalled in the centre thereof a crank-shaft 40 including an off-set crank portion 44 journalled in the lifter bars 38, the crank-shafts in the upper and lower pressure assemblies being driven in opposed directions by suitable gear-wheels. In the operation of the apparatus, starting at zero position wherein the centre pressure bars 36 are in contact with the upper and lower platens 32 and 34, rotation of the crank-shafts through 90 degrees brings the lifter bars into contact with the platens, rotation of the crankshafts through a further 90 degrees brings the lifter bars into contact with the platens and forces the lower pressure assembly, the platens and the belts downwards against the springs 24 thus withdrawing the platens 32 and 34 from contact with the centre pressure bars 36, rotation of the cranks through a further 180 degrees restoring the apparatus to its zero position. During the rotation of the cranks from 90 to 270 degrees, the lifter bars 38 impart a longitudinal motion in the direction of movement of the assembly through the apparatus. In an alternative embodiment, the upper and lower pressure assemblies 10 and 12 are operated by pneumatic cylinders and use a knuckle and tie bar assembly to provide the pressure and to impart movement to the assembly to be laminated.
Patent GB-1107828-A (GB)
Title: Improvements in or relating to wear-resistant titanium or titanium alloy articles
IPC: C23C8/12
Filed: 1965-07-16
Abstract: An article formed from Ti or Ti alloy is heated in an oxidizing atmosphere at 900 to 1200 DEG F. for a time sufficient to form a surface layer of oxide of Ti, of 2 to 20 microinches thickness, adherent to the sub-surface.  By the process, the article can be given a surface hardness of at least 7 on the mohs scale without substantially impairing the fatigue strength of the metal. The article may be heated at 1200 DEG F. for 2.2 hours, at 1150 DEG F. for 7 hours or at 1100 DEG F. for 22 hours. A Ti alloy article may be of 6% Al, 4% V with the balance Ti.  The article may be a continuous belt which is to pass over a bearing surface.  The article, prior to oxidizing, may be cleaned with a vapour degreaser and water detergent or with a detergent soap followed by rinsing in hot water and acetone.
Patent GB-835397-A (GB)
Title: Record media reading apparatus
IPC: G06K7/10
Filed: 1958-09-24
Abstract: 835,397. Sensing statistical records. NATIONAL CASH REGISTER CO. Sept. 24, 1958 [Oct. 11, 1957], No. 30464/58. Class 106 (1). [Also in Group XL (b)] In a sensing device, e.g. for a punched card each longitudinal row of holes has an associated sensing unit comprising a light source which is focused on the card by a lens and a photo-cell on which light passing through a hole is focused by another lens. In the double unit arrangement shown one provides a check on the operation of the other. Light from source 30 is focused by lenses 33 and 36 to form an image in each column position at the plane of the card. Light passing through a hole is focused by lens 41 on photo-cell 47, one for each column position. Light stops 60, 61, Fig. 3, prevent interaction between lenses. For checking purposes the signals from corresponding ones of the two groups of photo-cells are compared and an error signal produced on disagreement. In a modification the source and the photo-cells are on the same side of the record, a mirror being provided on the other side.
Patent GB-210032-A (GB)
Title: Improvements relating to flexible joints for pipes
IPC: F16L51/02
Filed: 1922-10-19
Abstract: 210,032. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Oct. 19, 1922. Expansion joints.-A joint for pipes connecting flanges &c. subjected to relative motion is designed to allow angular flexibility without imparting end thrust. A flexible joint such as is shown in Fig. 1 comprising a short tubular member 6 having a corrugation 3 is provided in its interior with a rigidly connected flexible web 5. The latter may be twisted through 90‹ to allow flexibility in more planes than one. In a.nother modification, shown in Fig. 3, axial extension of the joint is prevented by the flexible bolt 7 secured in brackets 8 within the member 6. The flexible joints described above are particularly suitable in an extension pipe arrangement such as is indicated in Fig. 4 wherein the flanges 9, 10 subjected to relative movement are connected by an expansion pipe 11 having such flexible joints at opposite ends and at an intermediate point.
Patent GB-294413-A (GB)
Title: Improvements in apparatus for handling egg cartons
IPC: B65B43/52
Filed: 1927-11-14
Abstract: 294,413. Benoit, L. Nov. 14, 1927. Parcelling eggs.-An apparatus for handling egg cartons comprises a conveyer for several trays which are formed with walls 20, 21, Fig. 4, providing a three-sided enclosure and with raised bottoms 23 providing depending channels 24 adjacent the sides thereof, the trays being adapted to receive egg cartons having their covers 29, Fig. 6, folded back so that the free edges thereof extend into the channels. Parallel conveyer chains 13, Fig. 1, mounted in a framing A carry pivoted between them the trays B, each of which is counterpoised by a weight 19 to keep it horizontal at all positions of the conveyer, the trays being additionally supported on the upper part of the conveyer by upstanding flanges on guide channels which are secured to the framing and receive the chains 13. Work tables are disposed adjacent the trays and at their level to facilitate transfer of the cartons to and from the trays.
Patent GB-643507-A (GB)
Title: Improvements in or relating to structural elements comprising connected tubular members
IPC: E04B1/58
Filed: 1947-11-19
Abstract: 643,507. Tube joints. SMITH & CO. (LONDON E ), Ltd J., and SMITH Sir J. J. Nov. 19, 1947, Nos. 30671 and 34140. [Class 99(i)] [Also in Group X] A structural member, e.g. a stretcher for a collapsable tent is formed of two tubes 29, 30, Fig. 1; connected by a twopart axially bored spigot 28, 28<SP>1</SP> provided with grooves 32, 31 into which the tubes are pressed, the part 28<SP>1</SP> being secured within the tube 29 in spaced relation to its end, whilst the part, 28, secured within and projecting from the end of the tube 30, engages slidably and rotatably in the end of the tube 29. A rod 34 secured at one end 34' to the spigot part 28 passes slidably through the bore of the other part 28<SP>1</SP> and is provided with a head 35 held away from the part 28<SP>1</SP> by a compression spring 36, thus allowing limited end to end movement of the two tubes 29, 30. A ring 37 and hook 41 are secured as shown in Fig. 1. Fig. 3 shows a ridge tube which comprises tubes 29, 30 and 29<SP>1</SP>, 30<SP>1</SP> each pair connected together as above described with the adjacent ends of the tubes 30, 30<SP>1</SP> provided with projecting hinge lugs 50, 51 connected by a hinge pin 52. The arrangement is such that when the lugs hang downwardly the ridge tube is locked rigidly in its extended position and it is collapsed by. turning the lugs 50, 51 together with the tubes 30, 30<SP>1</SP> and parts 28 through 180 degrees so that the lugs project upwardly. Outer eye pieces 37, 37<SP>1</SP> are provided as shown:
Patent GB-974589-A (GB)
Title: Purification of fermentation broths
IPC: C12P13/14
Filed: 1963-08-02
Abstract: A fermentation broth is purified to remove cell materials and other impurities therefrom by treating the fermentation broth with calcium hydroxide, converting the calcium hydroxide in the broth into calcium carbonate and separating the calcium carbonate from the broth together with the co-precipitated cell materials and other impurities.  The treatment with calcium hydroxide is effected, preferably at an elevated temperature of 70-90  DEG C., by the addition of milk of lime or ground calcium oxide in amounts corresponding to between 0.1 and 10% by weight of calcium oxide calculated on the broth and the conversion to calcium carbonate is made at ambient or elevated temperatures by passing carbon dioxide into the broth or by adding a stoichiometric quantity of an alkali metal (sodium) carbonate.  In a preferred procedure the broth is maintained at a temperature of 70-90  DEG C. for from 5-40 minutes prior to the conversion, which is effected in two stages at different pH values, the precipitated substances being removed from the fermentation broth after each stage, as by filtration, centrifuging or decanting. Many fermentation broths are mentioned. According to an example, 3.5 parts of lime were added to 100 parts of a fermentation broth containing 5.5 parts glutamic acid together with bacterial cells.  The original pH of the broth was 12.2-12.4.  The broth was heated to 75-85  DEG C. and maintained at this temperature, with vigorous stirring, for 10-20 minutes.  The pH of the broth was then adjusted to 9.4-9.5 by passing in carbon dioxide, and the temperature was lowered to 50-60  DEG C.  The broth was then filtered at this temperature without difficulty. Carbon dioxide was again passed into the filtrate until a pH of 7.7 was reached and the broth was filtered again, yielding a clear solution.  Glutamic acid was crystallized from the solution in two crystal crops.
Patent GB-1256355-A (GB)
Title: Water-insoluble monoazo dyestuffs
Inventor: BERRIE ALISTAIR HOWARD
IPC: C09B29/42
Filed: 1968-06-27
Abstract: 1,256,355. Water-insoluble mono-azo dyestuffs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 June, 1969 [27 June, 1968], No. 30760/68. Heading C4P. [Also in Division C2] Novel water-insoluble mono-azo dyestuffs of the formula (one tautomeric form) (where A is aryl; Y is R, OR or NR<SP>1</SP>R<SP>2</SP>; R is alkyl or aryl; R<SP>1</SP> and R<SP>2</SP> are each H, alkyl or aryl; or NR<SP>1</SP>R<SP>2</SP> is a 5- or 6-membered heterocycle; and X is H or alkyl optionally OH, O alkyl or O acyl substituted; the alkyl and aryl radicals being optionally substituted which are free from CO 2 H or SO 3 H groups are prepared by coupling a diazotized amine ANH 2  with the appropriate 5 - unsubstituted - pyrid - 2 - one. They are particularly suitable for colouring synthetic textile materials, producing colorations which range in shade from yellow to violet.
Patent GB-737408-A (GB)
Title: Method and construction for handling vapors and liquids as in bubble columns or the like
IPC: B01D3/22
Filed: 1952-12-04
Abstract: 737,408. Contacting gases with liquids. RAGATZ, E. G. Dec. 4, 1952, No. 30804/52. Class 55 (2). A tray for gas or vapour liquid contact columns has means for directing a stream of liquid across the tray, a plurality of partitions spaced apart and disposed transversely of the stream of liquid and arranged such that the liquid flows under and over alternate partitions, the bottom of the tray being provided with alternating perforate and imperforate sections so that the gas or vapour passing upwardly through the tray is delivered into the ascending portions of the stream of liquid flowing across the tray. As shown in Fig. 2, the tray comprises a bottom plate 40 supported by beams 20 and 21 which extend across the column, the vertical flange of the beam 21 being extended to form an apron D. The plate 40 has openings 47 provided therein which are covered by perforated plates 70, the perforations being adapted in size and number for the particular use of the tray. Supported on the plate 40 are vertical partitions 42 and 43 which with vertical side plates 41 form a series of troughs across the tray under and over which liquid flowing across the tray passes from the liquid inlet side of the tray adjacent the beam 20. The partitions 43 have flaps 53 attached to their lower edges and extensions 44 to their upper edges and arranged between partitions 42 and 43 are series of perforated plates 80 secured together by bolts 100. An upper extension 49 of the side plates 41 is preferably provided and the space between the beam 20 and the shell of the column is closed by a plate 22 integral with the horizontal flange of the beam 20. The spaces between the side plates 41 and the shell of the column are closed by suitable plates so that gas or vapour rising upwardly in the column passes through the perforated plates 70 into the upwardly flowing portions of the stream of liquid passing over the tray. Weir plates 45 are attached to the upper edges of partitions 42.
Patent GB-802918-A (GB)
Title: Improvements in sighting apparatus for fire-arms and other instruments
IPC: G02B5/18
Filed: 1955-10-27
Abstract: 802,918. Lighting devices. VICKERSARMSTRONGS (AIRCRAFT), Ltd., and JEFFREE, H. Oct. 23, 1956 [Oct. 27, 1955], No. 30833/55. Class 97(1) [Also in Group XXI] A backsight for a firearm is in the form of a zone plate which enables the eye to focus simultaneously on the foresight and on the target. The zone plate may consist of a lens or transparency A, Fig. 1, disposed normal to the sighting line and displaying a series of narrow circular concentric zones A1 and A2 respectively transparent and opaque, the radii of the boundaries between successive zones being substantially proportional to the square roots of the natural numbers. Alternatively, instead of transparent and opaque zones A1, A2, the zones B1, B2, Fig. 2, may be alternately of different optical thickness such that light passing through the thicker zones B2 is caused to lag behind, that passing through the thin zones B1 by an odd number (preferably one) of half wave-lengths. Assuming that the eye focuses the target details, this is viewed by substantially parallel light rays advancing on substantially planar wave-fronts and such light passes through the transparent zones A, Fig. 1, as though the zone plate were in fact absent. Light from the foresight, however, advances with spherical fronts which reach different zones of the plate at different times, the arrangement being such that at any instant, the mean phase of the wave-front then passing has the same value for all transparent zones and although the pulses originally belonged to different wave-fronts, they combine after passing the zone plate to form a planar wave-front which is focused simultaneously with that received from the target. A similar effect is produced by the zone plate of Fig. 2. A lens may be provided at the backsight in addition to the zone plate. As shown in Fig. 9, a positive lens is mounted in conjunction with an index mark, such as cross lines or a graticule, at the foresight position FS, and a zone plate/negative lens combination ZP and L is provided at the backsight position, such backsight combination being chosen so that on the one hand it acts as a negative lens, forming with the foresight lens a Galilean telescope, and on the other hand it enables the index mark to be varied in sharp focus simultaneously with the enlarged target detail. The index mark and the zone plate may be formed on the surfaces of the foresight lens and backsight lens respectively.