baber/WOPTO huggingface dataset:
Patent GB-769287-A (GB)
Title: Preparation of partially depolymerized hyaluronic acid and therapeutic compositions thereof
IPC: C08B37/08
Filed: 1955-05-31
Abstract: Hyaluronic acid is partially depolymerized to a degree corresponding to that obtained by incubating a 5 per cent solution of sodium hyaluronate in physiological saline with 20 TRU (turbidity reducing units) of hyaluronidase per milligram of hyaluronic acid at 38 DEG C. for a period in the range of 5-60 minutes.  The depolymerization is preferably carried out by dissolving an alkali metal hyaluronate in physiological saline to form a 5 per cent solution, adding hyaluronidase (20 TRU/mg. hyaluronic acid), incubating at 38 DEG  C. for between 5 and 60 minutes, preferably for 10-25 minutes, heating the mixture at a temperature and time sufficient to deactivate the hyaluronidase, cooling and separating the precipitated deactivated enzyme.  The depolymerization may also be effected by non-enzymic methods, e.g. by treatment with ascorbic acid or hydrogen peroxide and a metal, especially copper.  In an example a 5 per cent solution of sodium hyaluronite is incubated for 15 minutes with hyaluronidase and the mixture then kept for 40 mins. in a steam pressure autoclave and the precipitated hyaluronidase removed by centrifugation, leaving the sodium salt of partially depolymerized hyaluronic acid in the supernatant liquid.ALSO:The invention comprises a solution of partially depolymerized hyaluronic acid (PDHA) in physiological saline substantially free from hyaluronidase activity, which has the property of increasing the ability for spread and absorption of drugs employed for parenteral administration and also a method for the preparation of a drug for parenteral administration having improved ability for spread and absorption which comprises mixing with the drug a physiological saline solution of PDHA in the form of a non-toxic alkalimetal salt.  The hyaluronic acid is partially depolymerized to a degree corresponding to that obtained by incubating a 52 solution of sodium hyaluronate in physiological saline with 20 TRU (turbidity reducing units) of hyaluronidase per milligram of hyaluronic acid at 38 DEG C. for between 5 and 6 minutes.  Examples illustrate the spreading effect of Trypan blue, an X-ray contrast medium and a local anesthetic (a substituted glycinamide-ethandamie derivative) with and without the addition of PDHA; also the use of PDHA for clearing lipemia in dogs, and to facilitate a hypodemoclysis of physiological saline in rabbits.
Patent GB-772774-A (GB)
Title: Improvements in and relating to pulsatory column combustion chambers
IPC: F02K7/04
Filed: 1955-05-31
Abstract: 772,774. Gas turbine plant; jet propulsion plant. HALLOWELL, E. May 31, 1955, No. 15519/55. Class 110 (3). [Also in Group XII] Combustion equipment comprises a plurality of oscillating column combustion chambers arranged within a common housing 11 and is arranged to deliver a substantially continuous high velocity stream of hot gases. Separate high velocity gas columns are discharged successively from the outlets of the chambers into a common converging chamber 40 the throat 43 of which is designed so that the gas columns pass therethrough sequentially as a substantially continuous stream flowing at a velocity substantially equal to the speed of sound in the gas, and so that an optimum depression is formed in the converging chamber. No combustion products are fed back into the combustion chambers during nodes of depression therein. The invention is shown applied in the case of a gas turbine engine having an air compressor 14 and a turbine 15 which is driven by gases generated in eight oscillating column combustion chambers 16, 17 ... 23. Air flowing through the inlet 12 passes through the central passage 41 and also through spaces 42 between the combustion chambers. Each chamber has an exhaust duct such as the duct 34 of chamber 16 and a shorter duct 36 which serves both as an exhaust duct and an inlet duct. Combustion gases will exhaust through both ducts 34, 36 but when gases cease to pass through the duct 36, a fresh charge of air will flow inwardly therethrough while exhaust gases continue to flow outwardly through the duct 34. The high velocity of the inflowing air causes the charge of air together with fuel which is supplied through injector 24, to be compressed and the charge is ignited by the spark plug 38. The flame is spread to the remaining chambers through interconnector pipes 39, but once the apparatus is started, the igniter may be switched off and ignition is then caused by rebounding hot products of combustion. The fuel is supplied to each chamber by means of a reciprocating type of pump. The combustion apparatus may be utilized in a ram jet propulsion unit, the compressor and turbine being dispensed with, and air supplied to the combustion chambers by ram effect and the combustion gases issuing into the atmosphere through a propulsion nozzle. Some air passes straight through the passage 41 into the converging chamber 40, this air serving to cool the hot gases and to augment the mass flow. The invention is not limited to the use of valveless type of combustion chambers. Specifications 291,263, [Class 110 (iii)], and 706,352 are referred to.
Patent GB-330737-A (GB)
Title: Improvements in and relating to liquid fuel burning apparatus
IPC: F23K5/02
Filed: 1929-05-17
Abstract: 330,737. Motley, L. May 17, 1929. Liquid-fuel supply. - In liquid-fuel burning apparatus in which fuel is fed to one or a group of burners from a pressure supply, a reducing valve is provided in each pipe delivering oil to the burner or burners. As shown, the fuel in a reservoir 2 is kept under a constant pressure by air issuing from a compressed air container 3 and regulated by a reducing valve 5. Pipes 6 and 7 feeding the fuel to the burners. A, B and C are provided with ordinary valves 8, reducing valves 9 and pressure gauges 16 and 17. In modifications the fuel may be under water pressure instead of air pressure or the fuel may be fed by a pump into an hydraulic accumulator and thence to the burners.
Patent GB-628665-A (GB)
Title: Improvements in or relating to coupling boxes for rolling mills and the like
IPC: F16D3/26
Filed: 1947-06-12
Abstract: 628,665. Universal joints. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. June 12, 1947, No. 15560. Convention date, June 18, 1946. [Class 80 (ii)] A coupling for rolling mills or the like having substantially co-axial shafts 1, 2, comprises a pair of universal joints each having an adjusting block 4, one or more torque transmitting members 5 slidable in the blocks, and a sleeve 6 surrounding the universal joints, which is engaged with the member 5 to transmit substantially the whole of the torque. As shown the universal joints comprise the heads 3 fixed to the shafts 1, 2 and having adjusting blocks 4 filling transverse cylindrical bores, the blocks being slotted to slidably receive the flat member 5 which is in torque transmitting relation with the sleeve 6. An oil retainer 8 and passages 9 are provided for lubricant, which is held in the coupling by the flexible cover 10.
Patent GB-668320-A (GB)
Title: Combustion chambers of internal-combustion engines
IPC: F02B23/08
Filed: 1949-06-13
Abstract: 668,320. Combustion chambers. JAGUAR CARS, Ltd., and HEYNES, W. M. April 11. 1950 [June 13, 1949], No. 15613/49. Class 7(ii) In an I.C. engine cylinder having parallel overhead inlet and exhaust valves 17, 18 respectively and spark ignition by a plug 20 situated in a substantially elliptically shaped combustion chamber 21, preferably formed in the cylinder head, an eccentrically placed boss 24 on the piston 23, filling at top dead centre more than half the portion of the combustion chamber above the piston and preferably then occupying approximately half of the total chamber volume, restricts the chamber to a size and shape appropriate for operation with highoctane fuels at compression ratios between 10 1 and 14 :1. Recesses 22 may be scooped out at the minor axis of the chamber 24 approximately as far as the cylinder bore to provide a combustion path round the boss 24, the chamber major axis in this case being greater than the bore. The boss 24 may be circular as shown or D-shaped with its straight side adjacent the piston axis.
Patent GB-774541-A (GB)
Title: Improvements in or relating to cattle drinking bowls
Inventor: PARKER JACK FORDHAM
IPC: A01K7/06
Filed: 1954-05-27
Abstract: 774,541. Drinking-appliances for animals. FORDHAM PRESSINGS, Ltd. May 23, 1955 [May 27, 1954], No. 15627/54. Class 5(2). A portable cattle drinking unit comprises bowls 6 supported by a pillar bracket 2 on a base A. The pillar bracket is in the form of a water feed conduit, the supply of water to the bowls being controlled by valves operated by the pressure of the animals' noses on the levers 7. Water is supplied to the water feed conduit via a flexible pipe passing under an arm 1 of the base and attached to the lower end of the pillar bracket.
Patent GB-395494-A (GB)
Title: Improved means for controlling supercharged internal combustion engines for aircraft
IPC: F02M7/26
Filed: 1932-06-02
Abstract: 395,494. Spray carburetters. DODSON, E., 66, Lewin Road, Streatham, London. June 2, 1932, Nos. 15636/32 and 2272/33. [Class 7 (iii).] Supercharged or high compression-ratio aircraft engines having a carburetter fitted with a power jet adapted to come into action at full throttle opening, for example as described in Specifications 125,687 and 138,177, [both in Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], are provided with means for varying the throttle opening at which the power jet comes into action according to the altitude. A valve h<11>, Fig. 1, controlling the power jet is opened by connections h<8>, h<9>, h<10> to a spindle h<7> mounted in a control box a, inside which the spindle h<7> is connected by links h<5>, h<6>, Fig. 3, to a lever h carried by a floating pivot h<13> and connected at its other end by a link b<10> to the throttleactuating mechanism comprising a lever b<7> pivoted at b<8> and connected by linkwork b<4>, b<5> to a spindle b, which has an arm b<1> outside the control box connected by a link b<2> to the pilot's throttle-control lever b<3>. The link b<10> is also connected to an arm on another spindle b<12> carrying outside the control box an arm b<13> connected by a link b<14> to the throttle c. Hence actuation of the throttle also operates the lever h and spindle h<7> to control the power jet. The amount of throttle opening at which the power jet comes into action is varied by mounting the floating pivot h<13> in a cam slot e<7> formed in a sector e<8> carried by a spindle e, which is adjusted according to altitude either automatically or by the pilot's control e<3> of a valve f controlling the proportion of fuel and air and connected by links e<4>, e<5>, e<6> to the spindle e. The pivot b<8> of the lever b<7> is also mounted in a floating manner in an arm carried by a spindle d<1> which is adjusted according to altitude by a boost control unit d<4> such as those described in Specifications 358,289 and 356,410. The power-jet timing may also be varied automatically by means for adjusting the ignition timing in accordance with altitude, for example as described in Specification 378,182. Specifications 291,152, 306,587, [both in Class 7 (vi), Internal-combustion engines, Valves &c. for], and 376,341 also are referred to.
Patent GB-1446259-A (GB)
Title: Electronic theft detection system having uniform field strength
IPC: G08B13/24
Filed: 1974-04-09
Abstract: 1446259 Theft detection systems KNOGO CORP 9 April 1974 [13 April 1973] 15684/74 Heading G4N [Also in Division H4] A theft detection system comprises at least two windings 24, 36, 38 lying in crossed planes and an arrangement 10-18 for applying signals to the windings at the same frequency but differing in phase. The windings are placed at or around the exit through which protected articles having transponder tags must pass. An oscillator 12 is periodically swept around its centre frequency by a low frequency oscillator 10 and applied to detectors 26, 40 via phase shift networks 16, 18. A rotating magnetic field is produced at the monitored exit. In the presence of a tag or transponder having a resonant frequency at the centre frequency of oscillator 12, energy normally coupled to detectors 26, 40 is partially absorbed via windings 24, 36, 38 and this reduction of energy is detected by 26, 40 to trigger an alarm.
Patent GB-1427391-A (GB)
Title: Coated polyesters films
IPC: C08J7/044
Filed: 1973-04-02
Abstract: 1427391 Antistatic coated polyester films IMPERIAL CHEMICAL INDUSTRIES LTD 5 March 1974 [2 April 1973 16 July 1973] 15704/73 and 33715/73 Heading B2E  An antistatic synthetic linear polyester film which may be biaxially oriented (e.g. a condensation product of terephthalic, isophthalic, phthalic, 2, 5-, 2, 6- or 2, 7-naphthalene dicarboxylic, succinic, bdbacic, adipic, azelaic, bibenzoic, or hexahydroterephthalic acid or bisp-carboxy phenoxy ethane with one or more glycols such as ethyleneglycol, 1, 3-propanediol; 1, 4-butanediol; neopentyl glycol or 1,4- cyclohexanedimethanol) is prepared by coating with a composition comprising lithium nitrate and an aqueous dispersion of an acrylic or methacrylic polymer or copolymer binder e.g. acrylic acid, methacrylic acid, their esters, amides and oxiranes, together with a non-ionic emulsifying agent, e.g. nonyl phenol condensed with ethylene oxide. Suitable cross-linkable binders include those mentioned above and acrylic or methacrylic copolymers with formaldehyde or alkylated formaldehyde condensation products with an amine e.g. melamine, urea and diazines. The coating composition may include antioxidants, dyes, pigments, lubricants, antiblocking agents and/or slip agents, e.g. starch, talc, ZnO, CaCo 3 , SiO 2 , TiO 2 , Fe 3 O 4 , silicates, aluminates, aluminosilicates, particles of PVC or polymethyl methacrylate. The substrate film may be stretched before or after coating.
Patent GB-345155-A (GB)
Title: A new and improved handle for brushes and the like
IPC: B25G3/12
Filed: 1930-05-22
Abstract: 345,155. Fixing brush &c. handles. WISEBURGH, J., 59, Shacklewell Lane, Stoke Newington, London. May 22, 1930, No. 15818. [Class 61 (i). A handle for brushes, squeegees, mops, and the like, which can be used in the hand or attached to a rod or stick, comprises two pieces of wire bent as shown. The lower part b is of elliptical form having extending ends b<2> to fit into sockets in the squeegee, placed nearer together than the ends of the wire so that the latter grip the squeegee; the upper wire is hinged to the lower to enable a rod d to pass through both loops.
Patent GB-240538-A (GB)
Title: A method of indicating the action of muscles of the eye, and apparatus therefor
IPC: A61B3/113
Filed: 1924-07-01
Abstract: 240,538. Esdaile, A. J. July 1, 1924. Eye-examining apparatus.-For measuring the actions of the muscles of the eye a fixed spot of light is arranged on a screen directly visible tc one eye, and viewed by the other eye through a prism which is rotated, to cause a virtual image of the spot of light to move over a closed path A marked member or disc is caused by the observer to coincide with this virtual image throughout its path and by means of a tracer tc give a graphic indication of its movement. A similar operation is performed when viewing the spot of light through the prism by the other eye and the overlap of the two curves traced give an indication of the area of binocular vision. A rotatable eyepiece A carrying a prism 1 is mounted in a support 41 and is capable of sliding transversely. Rotation is effected from a clockwork mechanism 44. A receptacle 48 carries a lamp 47 for the illumination of an aperture 50 on its front face. such aperture being viewed both by the unaided eye and by the other eye through the prism 1. A disc 57 on an arm 56 attached to a lever 52 universally mounted on a standard 51, is caused by the observer to move with the virtual image of the aperture 50 in a closed path as the eyepiece rotates. The back of the receptacle 48 carries a chart 39 over which moves a pencil arm 63, carried by the lever 52. The movement of the disc 57 is thus recorded on the chart 39. Each of the levers 56, 63 is spring pressed against the corresponding face of the casing 48, and a lever 65 pivoted at 66 is arranged at the side of the casing to lift the pencil out of contact with the chart 39. In a modified form of the apparatus the eyepiece is rotated through bevel and worm gearing by an operator other than the observer, and the disc and pencil are moved as in the above construction but by means of a cranked lever operating plungers in hydraulic cylinders. In this construction the fixed spot is at the centre of a disc rotated simultaneously with the eyepiece from the same shaft.
Patent GB-861209-A (GB)
Title: Improvements in rotary switch operating mechanism
Inventor: WATSON JOHN ANSLEY
IPC: H01H3/44
Filed: 1958-05-16
Abstract: 861,209. Actuation of switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 14, 1959 [May 16, 1958], No. 15857/58. Addition to 823,717. Class 38 (5). The invention of the parent Specification is modified by the provision of two (or more) rollers 3 on the driving cam 2 so as to produce more rapid switching during acceleration of the train. The wheel 1 may be held during the non-driven period alternatively by a spring or gravity-urged roller engaging one of the slots, Fig. 4 (not shown).
Patent GB-146943-A (GB)
Title: Improved apparatus for rendering timber not otherwise suitable, usable for containers for comestible substances such as butter
IPC: B27K3/02
Filed: 1920-06-11
Abstract: 146,943. Western District Co-Operative Produce & Insurance Co., (Assignees of Gippsland & Northern Co-Operative Selling & Insurance Co.). June 27, 1919, [Convention date]. Coating-machines.-Wood is treated with lacquer, paraffin, or other impregnating material, by applying the lacquer to the surface whilst the latter is heated. In the apparatus shown, the wood T is fed by rollers 6, 7 over the top 3 of a heated chamber 1, and the lacquer is applied by a roller 12 rotating in a supplying chamber 111, the lacquer being forced well into the wood by a pressure roller 13. To ensure uniform heating of the wood, it is pressed into close contact with the heated table 3 by pressure bars 25 pivoted on a transverse shaft 26, the speed of travel of the wood being preferably about 100 feet per minute. The rollers are driven from the shaft 15 by a chain 17 passing over sprockets 18, 19, 20, 22.
Patent GB-201334-A (GB)
Title: A new or improved grip or device for handling hot cookingutensils, hot-plates, dishes, and other vessels
IPC: A47J45/10
Filed: 1922-06-08
Abstract: 201,334. Kobson, J. June 8, 1922. Tongs; holding- tools.- A gripping- device for handling hot dishes is made from sheet brass, steel, aluminium or aluminium - bronze and comprises spring-arms a, b, provided with cork gripping pads h, i, and a bent lever f pivoted between lugs e extending from the arm b and adapted to engage the upper surface of the arm a to force the arms together. The jaws may be bent at an angle to the arms to facilitate gripping basins &c. with inclined sides.
Patent GB-380767-A (GB)
Title: Improvements in spring clips
IPC: G09F3/16
Filed: 1932-06-06
Abstract: 380,767. Clips. NUTTALL, J. A., 45, Beresford Street, New Brighton, near Christchurch, New Zealand. June 6, 1932, No. 15918. Convention date, June 30, 1931. [Class 44.] Spring clips comprise two pivoted levers one of which carries a hinged flap 9 with a spike 10 and the other is formed with a hook-shaped end 14. The spike 10 when not in use is received in a hole in the lever.
Patent GB-165649-A (GB)
Title: An improved safety device for brooch pins and the like
IPC: A44B9/18
Filed: 1920-06-12
Abstract: 165,649. Linton, C. H. June 12, 1920. Safety-pins; catches for hinged pins; sliding- pin fastenings.-A safety device for brooch and like pins comprises a tube A, Figs. 2 and 3, secured to the brooch by a hinge J, Fig. 9, and within which the pin F slides. The tube A is formed with a longitudinal slot B, a transverse slot C, and a shorter longitudinal slot D, and a stud E on the pin engages in these slots. The catch G, Fig. 7, has an opening H, through which the point of the pin can pass when the stud is withdrawn to the end of the long slot. When in the catch, the pin is slid forwards, turned, and then withdrawn so that the stud engages in the short slot, in which position the point of the pin cannot become disengaged from the catch.
Patent GB-833446-A (GB)
Title: Improved iron, chromium, aluminium alloys
Inventor: HAGGLUND ERIK HAJIME MATTIASSO
IPC: C22C38/26
Filed: 1956-05-23
Abstract: An iron alloy, particularly for electric heating elements consists of Cr 10-40%, Al 1-9%, Fe 51-88.9%, Ta with or without Ti 0.1-5%, the Ta when present with Ti being not less than 0.05%, Ce with or without Ca 0.01-1%, the Ce when present with Ca being not less than 0.005%.  The alloy may also contain one or more of the following elements, Co up to 5%, Zr 0.01-1%, Mn up to 2%, Si up to 2%, C up to 0.5%, Nb up to 2%, Mo up to 1.5%, Th up to 0.2%. Specification 727,174 is referred to.
Patent GB-1412233-A (GB)
Title: Method of recovering fat and meat from raw animal material
IPC: A23L13/00
Filed: 1974-04-10
Abstract: 1412233 Processing waste meat or offal ALFA LAVAL AB 10 April 1974 [19 April 1973] 15996/74 Heading A2U Meat material is processed to provide meat meal and fat by (a) boiling it, (b) separating the boiled product into a solid fraction and a glue fraction, (c) drying the solid fraction to provide meat meal, (d) concentrating the glue fraction by evaporation, (e) separating the concentrate into a sludge fraction, a fat fraction and a second glue fraction. In the drawing, meat or offal is heated in boiler 1 and separated into solid and glue fractions in centrifuge 4. The solid fraction is dried in drier 6 to provide meat meal. The glue fraction is further separated in centrifuge 9 into sludge, water and fat fractions. The glue fraction is dried in drier 11 to provide further meat meal. The water fraction is concentrated in evaporator 13 and further separated in centrifuge 17 into sludge and fat fractions. The sludge is fed to drier 11 to provide further meat meal. The fat fractions from centrifuge 9 and 17 are further separated in centrifuge 17 into fat and sludge fractions. The fat fraction is collected. The sludge fraction is recycled.
Patent GB-695833-A (GB)
Title: Improvements in and relating to optical projecting apparatus for examination of time-piece jewels
IPC: G02B21/00
Filed: 1951-07-06
Abstract: 695,833. Optical projection apparatus. SOC. GENEVOISE D'INSTRUMENTS DE. PHYSIQUE. July 6, 1951 [July 7, 1950], No.. 16070/51. Class 97 (i). A projection device for examining time-piece, jewels has a horizontal carrier on which the. jewel is supported by one of its end faces in a. bath of liquid of approximately the same refractive index through which the optical axis, is passed horizontally, reflecting surfaces being provided outside the bath at both entry and exit of the light beam, the optical axis being vertical beyond these surfaces. One form of optical system is shown in Fig. 1. A beam of light from a lamp 11 is projected by condensers: 12 and 14 and a reflector 13 into rhomboidalprism 19 from which it enters a prism 20 which directs it through the walls 18a, 18b of a cell containing the specimen P on a support 17. A prism 21 directs the emergent light beam through an objective 5a which is one of a number on a turret with axis 6. The imageforming light beam is directed rearwardly by a mirror and then forwardly again on to the rear of a projection screen which has clips for supporting reference drawings. The prisms 20, 21 are supported on members 22 carried on balls and adjustable by knobs 24. Scales may be provided. By these adjustments the light beam through the jewel may be adjusted to be inclined to the horizontal to secure better illumination. The jewel support 17 is shown on a larger scale in Fig. 7. The jewel rests on the upper surface 33, the support having at 32 a bevel which is tapered so that the edge 30 is inclined to the wall 18b.