baber/WOPTO huggingface dataset:
Patent GB-1533015-A (GB)
Title: Process for recovering polyvinyl alcohol
IPC: C02F1/52
Filed: 1976-03-04
Abstract: 1533015 Polyvinyl alcohol recovery SANDO IRON WORKS CO Ltd 4 March 1976 [5 March 1975 14 March 1975 22 April 1975 23 April 1975 (3)] 08645/76 Heading C3L Polyvinyl alcohol (PVA) is recovered from aqueous waste liquids containing PVA by adding an agent (e.g. a flocculating or gelation agent), which forms with the PVA a waterinsoluble solid phase, to the liquid and separating the solid phase so formed. The agent added may be soda ash, boric acid, borax, formalin, salt cake or an inorganic acid salt of NH 3 , Mg, Ca, Na or Al, optionally used in conjunction with an inorganic acid. Apparatus for effecting the recovery is described.
Patent GB-511415-A (GB)
Title: Improvements in or relating to adjustable electric condensers
IPC: H01G5/12
Filed: 1939-03-18
Abstract: 511,415. Variable condensers ; Supplying current to moving conductors. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 18, 1939, No. 8710. Convention date, March 21, 1938. [Classes 37 and 38 (i)] The connection to the movable electrode, shown as moving axially, of a variable condenser is effected through a strip 11 provided with a hole 12 toothed at its edge, embracing a part of the electrode so that its teeth engage it resiliently. The part 6 engaged may have a conical seat for the teeth.
Patent GB-573432-A (GB)
Title: Improvements in a process for rendering insoluble and for hardening threads, ribbons, films and other filaments obtained from aqueous solutions of proteins
IPC: D01F4/00
Filed: 1942-06-25
Abstract: Artificial filaments, threads, films, and like materials obtained from aqueous solutions of proteins such as casein are rendered insoluble and hardened by subjecting them when in air-dried condition to the action of a hardening agent such as formaldehyde under conditions such that the materials are prevented from contacting with liquid water or watery solutions. The aldehyde or other hardening agent may be used in gaseous or liquid state or may be dissolved in a solvent which is not a swelling agent for the protein under treatment, e.g. a lower aliphatic alcohol, ether, ketone, or ester. Such a solvent may be anhydrous or may contain a small content of water provided that it does not have a swelling effect on the protein.  A substance, which decomposes and produces an aldehyde at elevated temperature, may be added to the protein spinning solution. The dry products obtained are heated to the temperature at which the aldehyde is produced.  Threads may be obtained by dry-spinning an alkaline casein solution.  The air-dry threads may then be passed through an atmosphere containing formaldehyde vapour at ordinary or elevated temperature.  The hardened threads are then washed.  If desired, the freshly-formed threads may be neutralised and washed and then dried prior to the treatment with formaldehyde.  The threads may be obtained by a wet-spinning process, in which case they are dried before they are hardened with the formaldehyde vapours.  In an example, sodium caseinate fibres obtained by dry spinning are exposed in air-dry condition to the vapours from an aqueous solution of formaldehyde.  The hardened fibres are then soaked in a solution containing sodium chloride, potassium aluminium alum, acetic acid, and formaldehyde.  They are then rinsed and dried.  In other examples, sodium caseinate fibres are treated with the vapours of benzoquinone, with liquid propionic aldehyde, with a solution of formaldehyde in methanol, with a solution of acetaldehyde in ethyl ether, with a solution of quinone in ethyl ether, or with the vapours from a solution of acetaldehyde and calcium chloride.  A solution of casein in caustic soda containing polyoxymethylene dimethylether is dry spun and the filaments obtained are heated to liberate formaldehyde and to effect the hardening of the filaments. Hexamethylene tetramine may also be used as the hardening agent. Reference has been directed by the Comptroller to Specifications 495,885, 521,856 and 536,841.
Patent GB-1498722-A (GB)
Title: Process for the manufacture of aromatic halogenoamino compounds
Filed: 1976-02-18
Abstract: 1498722 Manufacture of an aromatic halogenoamino compound IMPERIAL CHEMICAL INDUSTRIES Ltd 18 Feb 1976 [3 March 1975 25 March 1975] 8727/75 and 12426/75 Heading C2C A process for the manufacture of an aromatic halogenoamino compound comprises hydrogenating an aromatic halogenonitro compound in the presence of a catalyst comprising a metal of Group VIII in Mendeleef's Periodic System and a trialkyl phosphite. The metal catalysts may be especially cobalt, nickel, platinum and palladium. The metal catalysts may be used in supported or unsupported form. Generally temperatures of 20 to 150 C. and pressures from atmospheric up to 1500 p.s.i.g. may be effective. It is preferred to operate the process in the presence of a solvent which is inert under the hydrogenation conditions, particularly a hydroxylic solvent. The examples describe the reduction of 4-chloronitrobenzene, 2,5-dichloronitrobenzene and o-chloronitrobenzene.
Patent GB-487711-A (GB)
Title: Improvements in serrating and breaking flax and other fibrous plants and apparatus therefor
IPC: D01B1/22
Filed: 1937-04-24
Abstract: 487,711. Serrating or breaking flax &c. LINEN INDUSTRY RESEARCH ASSOCIATION, and MATTHEW, J. A. April 24, 1937, No. 8763. Addition to 439,741. [Classes 120 (i) and 120 (iii)] Apparatus for serrating fibrous material such as set forth in the parent Specification and in Specification 461,712, and particularly for serrating or breaking flax stalks, comprises a pair of short rollers A, A<1> of relatively large diameter, e.g. eight to twelve inches, pressed. into contact by springs at each end of the upper roller shaft, the roller A being provided with stout, deep flanges B at each end between which the roller A closely fits and a serrating blade D<1> mounted on arms D pivoted on the upper roller shaft fitting closely between the flanges B with one edge abutting against the periphery of the upper roller A<1> and the other edge resting upon a fixed plate D<2> held in close contact against the surface of the bottom roller A. Alternatively the bottom roller may be flanged. The blade D<1> is adjustably secured to a swivelling bracket K mounted on a bar L secured in the ends of the arms D, and is pressed downwards by a spring d acting through a spindle N and a ball-joint M. The material is fed to the rollers A, A<1> over a feed plate E, F by fluted rollers C, C<1> and after serration between the blade D<1>, the plate D<2> and the flanges B is delivered by a pair of rollers or by pairs E<1>E<2>, F<1>F<2> which straighten out the serrated material.
Patent GB-823138-A (GB)
Title: Back spacing mechanism of a typewriter having variable proportional letter feed
Inventor: TOGGENBURGER JOHN
IPC: B41J19/60
Filed: 1956-03-21
Abstract: 823,138. Typewriters. UNDERWOOD CORPORATION. March 21, 1956, No. 8795/56. Drawings to Specification. Class 100(4) The subject-matter of this Specification is identical with that described in Specification 823,136 except that it also discloses the use of a straight escapement rack, and is identical with that described in Specifications 823,137, 823,139 and 823,140, but the claims differ.
Patent GB-1238152-A (GB)
IPC: B60T17/08
Filed: 1970-02-24
Abstract: 1,238,152. Brake actuators. CERTAINTEED PRODUCTS CORP. 24 Feb., 1970 [10 March, 1969], No. 8833/70. Heading F2F. A spring applied fluid pressure released device is provided with a fluid pressure brake actuator which applies the brakes in the event of a fluid pressure failure. In normal braking fluid pressure supplied to a chamber 120 of the actuator depresses a diaphragm 122 which actuates the brake through a piston-rod 126 engaging the diaphragm through a pad 127, the emergency actuator comprising a piston 118 being held in its off position against the bias of a spring 143 by fluid pressure passing into a chamber 117 through a port 116 the cylinder in which the piston slides having a flared portion 119 coupled by bolts or screws 113 to tapered portion 124 of an inner end wall 101. When the pressure fails spring 143 moves piston 118 and its associated piston rod 134 so that a pad 138 carried by the rod engages diaphragm 122 to apply the brakes. The piston 118 and rod 134 are coupled by means of a threaded bolt passing through the rod, the bolt head 150 being smaller in diameter than an opening 106 in the spring actuator housing 104 so that the brakes can be released when the actuator is in operation by unscrewing bolt 150 which jacks the piston 118 upwardly towards wall 104a. In another embodiment the cylinder has an inward step 205b, Fig. 2 (not shown) which limits the movement of the piston towards the outer wall, and the outer wall is part of a cylinder extension which slides in the cylinder inwardly from that wall.
Patent GB-1417947-A (GB)
Title: Record material feed mechanism
IPC: B41J19/78
Filed: 1974-02-27
Abstract: 1417947 Intermittent web feeds N C R CORP 27 Feb 1974 [7 March 1973] 8858/74 Heading B8R [Also in Divisions B6 and F2] A web feed roller on a shaft 61 is rotated stepwise by a pawl 104 and ratchet wheel 100, the pawl being driven by a solenoid 112 which is coupled to a pneumatic dashpot 120 comprising a cylinder housing a piston 122 and having an outlet orifice 133 for air, the dashpot opposing the action of the solenoid to a degree which increases with increasing piston speed. (For Figure see next page.)
Patent GB-1457907-A (GB)
Title: Microwave antennas
IPC: H01Q25/00
Filed: 1974-02-27
Abstract: 1457907 Aerials TERMA ELEKTRONISK INDUSTRI AS 26 Feb 1975 [27 Feb 1974] 8878/74 Heading H4A A dual polarization mode microwave aerial comprises two orthogonal grid systems mounted in a generally combined intercrossing manner, so that each system defines a respective reflector surface having a focal point, the two focal points being spaced from each other. The main axes of the two surfaces are parallel. As described, the forward edges of a set of plates 10 define an E-plane paraboloid P E  having an axis X E  and a focal point F E , whilst the forward edges of a set of plates 12 define an H-plane paraboloid P H  having an axis X H  and a focal point F H . Horns are located at the points F E , F H  which respectively radiate waves polarized in the E- and H-planes. The main beams B E , B H  from the reflector surfaces are parallel to the axes X E , X H . Any H-plane polarized radiation from the horn at the point F E  will be reflected from the edges of the plates 12 (forming the paraboloid P H ) in a direction B E1  which is different from that of the main beam. Correspondingly, any E-plane polarized radiation from the horn at the point F H  will be deflected by the paraboloid P E  in a direction B H1 .
Patent GB-1549977-A (GB)
Title: Supply of oxygen-gas in combustion processes
IPC: F23D1/00
Filed: 1978-03-07
Abstract: Atomized fuel is sprayed in the form of a cone with the apex of the cone in the aperture of the spray device. Oxygen gas is supplied centrally of the cone and the high temperature resulting from oxygen-supported combustion is generated in the internal portion of the cone. Air, or oxygen-enriched air, supports combustion at the outer surface of the cone thus generating lower temperatures at the outer surface. The extreme thermal stresses experienced by surrounding parts of a spray device used for oxygen-supported combustion are thus reduced.
Patent GB-1144033-A (GB)
Title: Metal oxides
Inventor: HAMLING BERNARD HENRY
IPC: C01B13/32
Filed: 1967-02-24
Abstract: 1,144,033. Metal oxides. UNION CARBIDE CORP. 24 Feb. 1967, No. 8915/67. Heading C1A. Metal oxide fibres, textiles and shapes are produced by a method which comprises (1) impregnating a preformed organic polymeric material with a compound of one or more of the metals as defined in the Specification Be, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Ga, Si, Sn, Pb, Th, U and plutonium, and (2) heating said impregnated material to a temperature sufficiently high to carbonize and oxidize the organic material and convert the metal compound to metal oxide, at least a portion of the heating step being carried out in an oxidizing atmosphere, and the heating step being carried out without ignition of the material. The material may be impregnated by immersion in a solvent solution containing the metal compound and excess solution is removed from the organic material which is then dried prior to the carbonization-oxidation step. Any cellulosic material may be used and other suitable organic materials include the protein materials, such as wool and silk, the man-made acrylics, polyesters, vinyls and polyurethanes. Shrinkage in all dimensions takes place during the process yielding a metal oxide product with essentially the same physical configuration as the original polymeric material. Controlled reaction conditions are employed to avoid ignition of the organic material during the carbonization-oxidation step e.g. (1) cellulosic fibres impregnated with metal salts are heated to a temperature between 350 and 900‹ C. at a rate of not more than 100‹ C. per hour in an atmosphere containing from about 5 to 25 volume % oxygen, provided the temperature does not exceed the melting or decomposition temperature of the metal oxide (ii) heating impregnated fibrous materials in a non-oxidizing atmosphere to temperatures between 600 and 1000‹ C. in less than one hour followed by heating in the same temperature range in an atmosphere containing at least 5 volume % water vapour until oxidation of the material is substantially complete. Other controlled reaction conditions are described. The fibres can be maintaind under tension during the carbonization-oxidation step.
Patent GB-428327-A (GB)
Title: An improvement in connection with the buckets of bucket dredgers
IPC: E02F3/14
Filed: 1934-03-22
Abstract: 428,327. Dredger buckets. HUGHES, W. E., 134, Coleraine Road, Blackheath, London. March 22, 1934, No. 8946. [Class 68 (i)] A cutter for a dredge bucket has a chisel head c from which the side edges a<1>, a<2> taper away ; the hollowed upper sides of the cutter converge to form an edge e which assists in parting the material, while the lower sides converge from the side edges a<1>, a<2>, to meet the edges bl, b<2> of the lower face of the head c. The cutter has flanges f secured to the bucket by bolts, rivets &c., and abuts the wall h<1> of the bucket shell, while an abutment g enters a slot in a lip j which reinforces the plate l. Each bucket may have more than one cutter.
Patent GB-548770-A (GB)
Title: Improvements in or relating to chimney top structures
IPC: F23L17/02
Filed: 1941-07-15
Abstract: 548,770. Chimney tops. ROWSE, A. G. July 15, 1941, No. 8957. [Class 25] A chimney'top structure comprises a number of hollow box-like elements 1 assembled side by side on the chimney-head 2 each element being formed on its abutment face or faces with abutment ribs 10 and on its exposed face or faces with an upwardly directed conduit 4 permitting wind currents to set up ejector action in the upwardly convergent flue passages 3. The cavities between the elements may be closed at the top by filler blocks 8. A precast concrete sectional base member 5 may be seated on the chimney head 2.
Patent GB-163685-A (GB)
Title: Improved process for distilling sulphuric acid
IPC: C01B17/88
Filed: 1921-03-23
Abstract: 163,685. Chemische Fabrik Weissenstein-Ges. May 21, 1920, [Convention date]. Heating by electricity.-In distilling sulphuric acid, the stills are heated internally by electric heaters above the surface of the liquid. A stone-ware still a, connected by a pipe l to a supply-tank k arranged to maintain a constant level, is fitted with electric resistances g of platinum or of metals such as iron or nickelin, which are not acidproof but become protected by a layer of oxide or sulphate, heated by passage of continu- .ous or alternating currents. Reflectors of quartz &c. may be placed above the heaters.
Patent GB-197488-A (GB)
Title: Improvements in or relating to machines for carding dressing or opening and cleaning flocks, wool, capoc, hair, fibre or for the like purposes
IPC: D01G11/00
Filed: 1922-03-29
Abstract: 197,488. Gauntlett, S. C. R. March 29, 1922. Openers; feeding openers.-A carding or teasing machine for flock, wool, hair, kapoc, &c. and of the kind described in Specifications 1343/78, 2246/85, 7036/94, 20858/02, 8133/04, and 17322/07 consists of feed rollers 2, 2<a> positively driven, a clearing roller 3, an intermediate toothed cylinder 4 rotating at a higher peripheral speed than the rollers, a main swift 6 rotating faster than but in the same direction as the cylinder 4, and a fixed combing-bar 5 between the cylinders 4, 6 and above their axes and presenting a surface to each. A weighted pivoted plate 12 coacts with the cylinder 4 and presses the material thereon. Dust &c. is removed through a chamber 7 by a fan 11, which also draws air through a reticulated conveyer 9 to remove residual dust. Any suitable device may be fitted to the cover 12 to prevent it from being opened while the machine is running.
Patent GB-812700-A (GB)
Title: Improvements in or relating to card clothing
IPC: D01G15/84
Filed: 1956-03-23
Abstract: 812,700. Card clothing. SELLERS & SON Ltd., J., TEMPEST, E., and TEMPEST, G. H. Feb. 14, 1957 [March 23, 1956], No. 9061/56. Classes 120(1) and 120(3) Card clothing for the cylinder or rollers of a carding machine comprises a foundation material m in which are set substantially U-shaped wire teeth with their crowns or heels 1 lying in the direction in which the teeth will travel in normal current practice when the clothing is secured around a cylinder or roller, so that one limb 2 of each tooth will lead the other limb 3. The two limbs may be parallel and of equal length; or limb 3 may be shorter, as shown, or clenched down upon the face of foundation m. One or both limbs may be bent in the plane of the heel, or in other directions. Fig. 9 shows the card clothing mounted on a fancy 6 and engaging normal card clothing teeth 4 on the swift 5; the clothing on the fancy is stated to effect a cleaning operation together with the usual working action of the teeth. The clothing may be used solely for cleaning, being mounted on a driven roller located in proximity to the swift, doffer, worker, stripper or clearer to be cleaned.
Patent GB-251253-A (GB)
Title: Focussing device for cinematographic and photographic view taking apparatus
IPC: G03B19/18
Filed: 1926-04-06
Abstract: 251,253. Debrie, A. L. V. C. April 25, 1925, [Convention date]. Kinematograph apparatus; lens mounts.-For focusing and. finding purposes the film-carrying compartment 1 is rotatable on its axis within a frame 2, and a focusing screen, mounted in a housing 10 and associated with a viewing tube 12, can be brought into the focal plane position opposite the taking lens 5. The rotation is effected by rotating the viewing-tube 12 which carries a pinion wheel 9 meshing with an internal rack 8 on the collar 2. In addition to the taking lens, a second lens 13 may be mounted on the front plate 4 so that an image on the focusing plate can be watched during the taking of a scene. Both lenses can be operated together by connected gearing and thereby simultaneously focused. Two or more pairs of lenses may be mounted on a revolving holder and interchanged as required, alternative forms of focusing movement being described.
Patent GB-105677-A (GB)
Title: Improvements in Pumping Systems.
IPC: F02M65/00
Filed: 1916-06-29
Abstract: 105,677. Armstrong, Whitworth, & Co., Sir W. G., and Le Mesurier, L. J. June 29,1916. Air traps, indicating action of; suction reservoirs.-In a pumping system in which a number of pumps are fed by a common supply, failure of all the pumps due to defective working of one of them is prevented, and the faulty working is detected, by inserted between the supply tank and the suction pipe A of the pumps B a chamber C provided with an outlet G leading to a gauge glass I. If one of the pumps is working badly, the air forced by it into the chamber C passes out through the glass I so that the faulty action can be observed. By closing the valves K on the suction pipes successively and noting when the passage of air ceases, the faulty pump can be detected. The invention may be applied to a single pump.
Patent GB-108169-A (GB)
Title: Improvements in connection with Devices for Maintaining Soft Felt Hats in Shapes.
Inventor: JONES HERBERT
IPC: A42B1/00
Filed: 1916-10-13
Abstract: 108,169. Jones. H., and Jones, A. P. Oct. 13, 1916. Felt hats; stiffeners.-To restore felt hats to their correct shape after handling, as in salutation, a resilient shield is inserted in the front. The device consists of a curved shield a of any resilient material or a wire frame of the same shape, the lower part b of which is inserted between the sweat band c and the front d of the hat. The shield may be enclosed in a fabric casing.
Patent GB-639205-A (GB)
Title: Improvements in or relating to boxes, cartons and like containers
IPC: B65D5/70
Filed: 1947-04-03
Abstract: 639,205. Boxes. VIVIAN, G. S. April 3, 1947, No. 9177. [Classes 18 and 66] A tubular carton has an aperture in an extension of the front wall which is covered by a flap forming part of an overlying portion of the carton. The extension 10 forms part of a continuous end closing flap and is folded transversely to bring a, hinged flap 17 into coincidence with the aperture 12. The flap 17 comprises two wings 18 and a centre portion the shape of the aperture. The end closing flaps are folded inwardly, the extension 10 entering between triangular portions of side flaps 6, 8 and on extension 5 of the rear wall. The flap 17 lies beneath the aperture 12 and. the extension 5 above. A scored flap 21. in the extension 5 is secured to the flap 17 through the aperture 12. Alternatively the aperture may be marked by heavy scoring and the material enclosed secured to the flap 17 on one side and the extension 5 on the other, as shown. The raising of the flap 21 withdraws the flap 17 through the aperture to form a spout. A slot 14 is provided for tucking in the flap 21 after the initial opening. In an alternative form, the extension 10 carries both the flap 21 and the aperture 12 on its outer fold and the flap 17 on its inner. The extension 5 has an additional tear-out portion which is secured to the flap 21. The carton may be waxed and may be used for powders or liquids. Specification 437,897 is referred to for a method of sealing the base of the container.
Patent GB-1517993-A (GB)
Title: Releasable fastening mechanisms for dump trucks
IPC: B60P1/16
Filed: 1976-03-08
Abstract: 1517993 Releasable fastening TATRA 8 March 1976 09188/76 Heading E2A An operating mechanism for the fastening 8 of a side or tail gate 9 of a dump truck, comprises an inner part-sleeve 1 having projecting arms A, B by which it sits on a pad 2, and an outer part-sleeve 4 which is captive on the inner one but is attached at 12 to the tipping body 10 so that it rotates on it during tipping, Fig. 4, the relative motion serving to release the fastening against spring 13. As shown in Fig. 4, the whole mechanism may be raised clear of its supporting pad and it will then retain its fastening closed.
Patent GB-308360-A (GB)
Title: Improvements relating to exposure apparatus for copying kinematograph films
IPC: G03B27/16
Filed: 1929-03-21
Abstract: 308,360. Roehrich, C. March 22, 1928, [Convention date]. Low-pressure metallic-vapour apparatus.-In copying kinematograph films, a vapour lamp is placed near the exposure aperture and the light thread is deflected towards the copying area by a magnetic field. Electromagnets adjacent and fixed to the exposure aperture, which may be moved for adjustment, are preferably used. A quartz vacuum resonance lamp R containing a drop of mercury is fitted between the lamp d and the copying area. c. The lamp R has its side ground flat and is pressed against the films by springs. The vapour lamp d may be formed with a cooling jacket. The Specification as open to inspection under Sect. 91 (3) (a) states that a rotary magnetic field may be used to deflect the light thread. This subject-matter does not appear in the Specification as accepted.