baber/WOPTO huggingface dataset:
Patent GB-621606-A (GB)
Title: Improvements in or relating to aircraft propulsion units
IPC: F02C6/02
Filed: 1947-02-04
Abstract: 621,606. Aircraft propulsion. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-OUEST. Feb. 4, 1947, No. 3341. Convention date, Feb. 5, 1946. [Class 4] [Also in Group XXVI] An aircraft propulsion unit comprises a pusher propeller unit driven by one or more engines, the propeller unit having arranged coaxially within its hub a jet nozzle fed through a duct with the exhaust gases from the engine or engines. Two independent contra-rotating coaxial pusher propellers 5 are each driven by a turbine 1 by means of shafting 6 and speed reduction gearing 7, 8. The engine tail pipes 3 are formed into a single jet pipe 4 which is coaxial with and exhausts through the hollow propeller hub which may be insulated from the heat of the pipe 4 by an annular duct 12 filled with heat-insulating material or supplied with cooling air. The pipe 4 may be sub-divided to maintain a high exhaust ejection speed if one engine is stopped. In an alternative arrangement (not shown), additional ducts eject part of the exhaust gases over the upper surface of the flaps to improve the lift properties thereof.
Patent GB-1135265-A (GB)
Title: Preparation of amine-nitriles, and acids and salts derived therefrom
IPC: C07C53/08
Filed: 1966-01-25
Abstract: 1,135,265. Amine nitriles. ETHYL CORP. 25 Jan., 1966 [25 Jan., 1965], No. 3353/66. Heading C2C. An amine nitrile is prepared by a process which comprises adding HCN to a reaction mixture comprising water, formaldehyde, and a salt of ammonia, a primary amine or a secondary amine with a strong acid, particularly sulphuric acid, the amount of HCN added being within 10% of the stoichiometric amount based on said salt. Examples describe the production of nitrilotriacetonitrile from ammonium sulphate, of ethylenediamine-tetraacetonitrile from ethylenediamine dihydrochloride, and of nitrilotriacetonitrile from hexamethylenetetramine sulphate.
Patent GB-247216-A (GB)
Title: Improved attachment to sound reproducing machines for record cleaning
IPC: G11B3/58
Filed: 1926-02-06
Abstract: 247,216. Watson, T. Feb. 7, 1925, [Convention date]. Brushing records.-Relates to devices for attachment to the soundbox of a sound-reproducing machine, to clean the record when the machine is in action. According to the invention, such a device comprises a metal frame 1 having at one end clamping jaws 2, 3 for securing the device on the edge of the sound-box, the other end carrying an adjustable member 5<b> connected to a brush-holding clip 5. The member 5b is so adjusted on the limb 1<c> of the frame, and secured thereon by a set-screw 5<c>, that the brush 6 sweeps the record groove in advance of the needle during playing. One jaw 2 of the clamp is formed by bending the wire of the frame, the other jaw consisting of a slidable member 3 engaged by a nut 4. The Specification as open to inspection under Sect. 91 (3) (a) also describes a modification in which the brush-holder 5 is connected to the part 5b by a resilient arm, instead of being directly attached. This subject-matter does not appear in the Specification as accepted.
Patent GB-309660-A (GB)
Title: Improvements in or relating to cotton picking machines
IPC: A01D46/10
Filed: 1928-02-03
Abstract: 309,660. Wade, H., (Morava, W.). Feb. 3, 1928. Cotton, gathering.-In a cotton picking machine, the co-operating picking fingers 31 are rotatably mounted on stavies 27 which are adjustably mounted on cylinders 24 carried by shafts 35 rotatably mounted in the framing 10 and driven in opposite, directions by belt gearing from the motor 15 which drives the machine. The fingers 31, Fig. 7, are each provided with three longitudinal ribs 31<a> having rearwardly extending notches 31<b> therein which form teeth 31<c>. In order that the fingers 31 may rotate in one direction, during their engagement with the cotton plant during one half of the rotation of the cylinders 24 and in the opposite direction when the fingers leave the plants, and to assist the stripping operation during the other half of the rotation of the cylinders 24, the inner ends of the fingers 31 are provided with rollers 34 which are pressed into engagement either with the lower or upper surfaces of plates 38 mounted on the shafts 35 by the engagement of rollers 39 on the lower ends of the staves 27 with raised cam tracks 40 on plates 41 carrying the lower bearings 42 of the cylinder 24. The cotton is stripped from the fingers 31 by circular saws 49 mounted on shafts 43 supported by bearings on the plate 41 and driven by belt gearing from the shafts 35. The cotton is removed from the saws by brushes 50 assisted by spring guards 158 secured to the framing 10 and bearing against the shafts 43, and is drawn up suction pipes 54 into a fan 55, being discharged therefrom by a pipe 57 into a suitable receptacle.
Patent GB-1399772-A (GB)
Title: Device for the application of caps to containers
IPC: B67B3/20
Filed: 1973-01-23
Abstract: 1399772 Capping containers E ZETTERBERG 23 Jan 1973 [24 Jan 1972] 3476/73 Heading B8T In an apparatus for capping containers comprising a feed conveyer 1, a cap supplying device 2, a guiding and preliminary cap tightening mechanism 3 and a final tightening device 4, caps are supplied to the preliminary tightening device 3 from container 41 down shoot 42 along guide rails 45 in the "mantle" down position and are arrested by stop and guide pins 66 in an angled position so that the cap mantle edges are caught by a filled jar moving on the conveyer 1. The jar pulls the cap along the guides, pressing pins 66 outwardly against spring 67, and the cap falls into a horizontal position on guide plates (65) Fig. 3 (not shown) so that the upper face of the cap is placed unded the cylindrical portions of pins 66 and screw heads 68 and prevented from rising. Continuing movement of the container on the conveyer with the cap in position brings the cap into contact with a spring loaded cam surface (57) so that the cap edges move into the U-shaped groove of guide members 59, 60, and engage with a spring pressed friction member 61 which rotates the cap to give preliminary tightening. The partially tightened cap and container then move under the final tightening device 4. If the caps are of the press-on type friction member 61 is omitted.
Patent GB-1423992-A (GB)
Title: Photosensitive material of biological origin
IPC: G03C1/73
Filed: 1972-01-25
Abstract: 1423992 Photoactive complexes AGFAGEVAERT and PRB 16 Jan 1973 3499/72 Headings C3R and C3P [Also in Divisions G2 and C4] A protochlorophyll(ide)-apoprotein complex which is extracted from etiolated plant material forms a complex with polyethylene glycol (M.W. 6000) by adding an aqueous solution of the polymer to a supernatant liquid of the complex at 3‹ C. and then centrifuging and collecting the precipitate. The product is used in photographic processes (see Division G2) and fluorescent processes (see Division C4). Alternatively, the apoprotein complex may be further complexed by adding a solution of polyvinylpyrrolidone in a buffering agent of pH of 8.6, filtering, and centrifuging and collecting the ternary complex which is used as above (see preparation 2).
Patent GB-128867-A (GB)
Title: Improvements in Ozone Generators.
Inventor: JOSEPH EDWARD LIONEL
IPC: C01B13/11
Filed: 1919-02-13
Abstract: 128,867. Joseph, E. L. Feb. 13, 1919. Gases and vapours, treating electrically. - In an ozone-generator of the type in which a number of parallel plate electrodes alternate with dielectric sheets, the electrodes are made of trapezoidal shape, the projecting triangular portions providing an increased cooling surface and at the same time serving for the electrical connexion and the clamping together of the electrodes. The trapezoidal electrodes b, c, Fig. 2, separated by rectangular sheets d, have their projecting portions e, f oppositely arranged, so that the portions of electrodes of the same polarity overlap. Rods h, j pass through holes in the projecting portions and through metallic washers k, thereby serving to maintain the electrodes at the correct distance apart and to conduct current to them. The assemblage is contained in a casing surrounded by a water-cooled jacket o. Within the casing, baffle-plates y, z, Fig. 4, are obliquely arranged in such a way that the air passage to and from the assemblage is decreased in cross-sectional area as the distance from the inlet pipe u or outlet pipe v is increased respectively, thus ensuring uniform distribution of air through the assemblage. More than one assemblage of electrodes may be housed in the same casing. Additional clamping means may be provided, comprising a rod disposed within a glass tube passing centrally through the electrodes.
Patent GB-1304018-A (GB)
IPC: D04B1/24
Filed: 1970-01-26
Abstract: 1304018 Tights G BILLI & C SpA 26 Jan 1970 [28 Jan 1969] 3602/70 Heading A3V [Also in Division D1] Tights are knitted, on a circular knitting machine, with feet P, reinforced heels R, if required, and either one or two pockets S 1 , S to accommodate the wearer's seat, a slit T being formed in the fabric, laterally of and of the same or shorter length than the pocket or pockets, to fit round the waist. The pockets are formed by continuous rotary knitting in which partial courses are formed.
Patent GB-372356-A (GB)
Title: Improvements in or relating to internal combustion engines of the compression-ignition type
IPC: F02B21/00
Filed: 1931-02-05
Abstract: 372,356. Oil engines. CROSET, L. P., Vectis, Havelock Road, Shrewsbury. Feb. 5, 1931, No. 3672. [Class 7 (iii).] In a compression ignition engine of the type comprising an auxiliary combustion chamber b<1> arranged in the cylinder cover and communicating with the main combustion chamber h<1> by one or more restricted orifices g<2>, the auxiliary chamber is surmounted by a secondary air chamber m communicating therewith by a restricted orifice o and the fuel is directed by an injector e across the auxiliary combustion chamber downwardly towards the orifice or orifices leading to the main combustion chamber. The secondary air chamber m is formed by a cup-shaped member n and a conically recessed intermediate member p which is fitted into the upper portion of the combustion chamber b<1>, the whole being secured by a cap which is screwed into a vertical bore in the cover, through which the members n and p may be easily withdrawn. The chamber bl may be cylindrical with a conical upper end. An electrical igniter s is employed at starting only.
Patent GB-755866-A (GB)
Title: Improvements relating to drawing pins
IPC: B43M15/00
Filed: 1954-02-08
Abstract: 755,866. Drawing-pins- THOMAS, H. G. Jan. 28, 1955 [Feb. 8, 1954], No. 3686/54. Class 89 (2). - A drawing-pin for securing paper &c. to a backing without piercing the paper, comprises a point 2 and a head 1 with a lateral projection 3 substantially coplanar with the head. The head may be circular and the projection about one and one-half times the radius thereof. The sides of the projection may be tangential to the circular head, and the tip bent over or indented by stamping to provide a blunt, paper-gripping tongue 6. According to the Provisional Specification, the projection may be separate from the head and arched in elevation, and is secured by passing the point of the pin through a hole therein.
Patent GB-1478606-A (GB)
Title: Hard titanium carbonitride-based alloy
IPC: C22C29/00
Filed: 1976-01-30
Abstract: 1478606 Titanium carbonitride base alloy INST KHIM URAL NAUCH TSENTRA AKAD NAUK SSSR and VSESOJUZNOE PROIZVODSTVENNOE NAUCH-TEKHNICHES OBIEDIN TVERDYKH SPLAVOV I TUGOPLAVKIKH METALLOV "SOJUZTVERDOSPLAV" 30 Jan 1976 03732/76 Heading C7A A hard titanium carbonitride based alloy of composition:- Ni 9À5 to 49 wt per cent Mo 2À5 to 20À5 wt per cent Titanium carbonitride TiC x N y  balance wherein the carbonitride has the following atomic proportions of components x = 0À44 to 0À55 atoms y = 0À41 to 0À55 atoms Ti = 1 atom and wherein the proportion of uncombined carbon in the carbonitride is not more than 0À6 wt per cent. The carbonitride may further comprise 0À01 to 3À5 wt per cent oxygen and have the formula TiC x N y O z  where y represents 0À003 to 0À14 atoms and x + y + z = 1. The alloy may be prepared by comminuting a charge of Ni, Mo and Ti carbonitride, admixing with synthetic rubber, drying, granulating, moulding sintering in a vacuum hatch or continuous furnace at 1500‹C for 40 minutes at 5 x 10<SP>-1</SP> to 10<SP>-1</SP> mm. Hg. The sintered product may be used as a cutting tool.
Patent GB-329286-A (GB)
Title: A device for balancing bodies adapted for a rising and falling movement
IPC: E05F1/16
Filed: 1929-02-05
Abstract: 329,286. Webb, H. R., and Webb, H. N. Feb. 5, 1929. Balancing-apparatus for adjustable suspension. -A balancing device for rising and falling bodies, of the kind comprising a spring or the like exerting a varying force and a cam compensating device adapted to produce equilibrium, is provided with an adjustable lever connection 9 between the spring and the cord 8. A pulley system of equal mechanical advantage may be substituted for the lever 5 connected to the cam 7. The movement of the cam is limited to 180‹.
Patent GB-686579-A (GB)
Title: Extraction process for polymer treatment
IPC: C08F6/24
Filed: 1951-02-19
Abstract: Polymer particles, e.g. beads, granules, powder, are separated from removable components, e.g. purified, by forming a suspension, preferably with agitation and at raised temperature, of the polymer and a suspension stabilizer in a liquid which is a non-solvent for the polymer but a solvent for the removable components and separating the extracted polymer particles from the liquid.  The suspension stabilizer may be added to the liquid as a coating on the polymer particles.  Specified stabilizers are zinc oxide, tricalcium phosphate, magnesium, barium or aluminium phosphate, calcium carbonate, calcium fluoride, polyvinyl alcohol, sodium carboxy methyl cellulose, talc, kaolin, kieselguhr, aluminium oxide, barium sulphate, magnesium carbonate, ferric carbonate, magnesium silicate and bentonite.  The liquid may be methanol, ethanol, propanol or isopropanol.  The polymers mentioned are polystyrene, polyvinyl naphthalene, polyvinyl diphenyl, poly-o-, m-, and p-methyl-or ethyl-styrene, poly-dimethyl styrene, poly-isopropyl-styrene, poly-p-cyclohexyl styrene, poly-p-phenyl styrene, poly-methoxystyrene, poly-halo- and dihalo-styrenes, poly-halo-alkyl-styrenes, poly-monocyano and dicyano-styrenes, poly-cyano-alkyl styrenes, poly-acrylic, alpha-methacrylic and alpha-chloroacrylic acids and their esters, e.g. methyl esters, amides and nitriles, polyvinyl chloride, polyvinyl fluoride, polyvinylidene chloride and fluoride, polythene, polyisobutylene, polyvinyl acetate, polyvinyl propionate, polyvinyl benzoate, polydivinyl ether, polyvinyl isopropenyl ether, polyvinyl methyl ether, polyvinyl ethyl ether, polydivinyl ketone, polymethyl vinyl ketone, polyvinyl ethyl ketone, polyacrylophenone, poly N-vinyl amides, poly N-vinyl acetamide, poly N-vinyl succinimide, poly N-vinyl phthalimide, poly N-vinyl maleimide, poly N-vinyl caprolactam and copolymers of mixtures of the above monomers.  Specified copolymers are those derived from styrene, alpha-methyl styrene and divinyl benzene; styrene, vinyl naphthalene, alpha-methyl styrene and divinyl benzene; styrene, vinylidene chloride and vinyl acetate; vinylidene chloride, acrylonitrile and vinyl acetate; vinylidene chloride, styrene, methacrylamide and methyl vinyl ketone; vinylidene chloride, methyl methacrylate, acrylonitrile, styrene and methacrylamide; methyl methacrylate, acrylonitrile, styrene, maleic anhydride and dimethyl maleate.  The process is useful for determining the quantities of plasticizers, dyes and stabilizers present in polymeric materials.
Patent GB-549265-A (GB)
Title: Improvements in and relating to battery-driven motor vehicles
IPC: B60K1/00
Filed: 1941-03-25
Abstract: 549,265. Controlling battery-driven vehicles. BOWKER, J. E. March 25, 1941, No. 4031. Drawings to Specification. [Class 38 (iii)] In a battery driven vehicle a motor is arranged to operate as a generator and a brake pedal operates in succession, switching valves to change the operation of the motor, means to vary its output as a generator and mechanical braking means. A battery-driven motor vehicle is controlled by three switches. One control switch has three forward running positions, one reverse running position and one off position in which renegerative braking can occur ; a second control switch varies resistance in series with the armature to give smooth starting and a third switch varies resistance in a shunt excitation circuit to control braking current and is operatively associated with a mechanical brake pedal. The first control switch is connected to the actuating coils of four electrically operated double-throw switches so that selected switches are thrown to a "down" position in each of the running positions whereas in transferring from one position to another all switches are thrown to their " up " positions establishing regenerative conditions. One switch when " up " connects the motor armature to shunt excitation coils and to the battery through a reverse current cut-out and when down to two series field coils, another switch connects the series fields in series or in parallel with each other, a third switch reverses the relative direction of armature and series coils and a fourth switch connects the two portions of the battery in parallel or in series. In a modification for two motors each having a single series field the first switch connects both motor armatures for shunt excitation and in series connnection for regenerative braking when " up and connects each armature to its series field when " down." In both forms the first switch has additional contacts which disconnect the operating coil circuits from the battery after they have functioned.
Patent GB-1173403-A (GB)
Title: Method and Apparatus for Testing Tipped Cigarettes
IPC: A24C5/34
Filed: 1968-01-25
Abstract: 1,173,403. Testing mouthpiece cigarettes. R. J. REYNOLDS TOBACCO CO. 25 Jan., 1968 [1 Feb., 1967], No. 4063/68. Heading A2C. Tipped cigarettes 11 having a mouthpiece portion 11c joined to a tobacco portion 11a, 11b are tested for the presence of faulty cigarettes having weakly bonded joints and subsequently rejecting the faulty cigarettes without interupting the flow of good cigarettes along their normal path, by subjecting any cigarette 11 in said path to tension substantially along the axis thereof sufficient to cause relative movement of the tip and tobacco rod only in weak joints of less than pre-determined strength and diverting cigarettes having weak joints from said normal path. In one embodiment, double length filter tipped cigarettes 11 are transferred to and held by suction in cradles 13 of a rotating drum 10 in conventional manner. Suction is then applied via a port 61a, Fig. 1, a port 32 and grooves 33, Fig. 5, to enlarge toroidal rubber bladders 31 of pairs of cigarette gripping members 26, and then actuation of a cam follower roller 30 by a cam 35 at point 35a advances the pair of gripping members 26, against the action of springs 29, to a cigarette-encircling position. The suction applied to the bladders 31 is then replaced by air pressure supplied via port 64 causing the bladders to grip the ends of a cigarette 11. At point 35b the cam 35 curves away out of contact with the rollers 30 allowing the springs 29 to exert tension on the cigarette 11 and the joints thereof, and causing faulty joints to part to an extent limited by the cam 35. While so held, the cigarette is tested by applying air pressure to' both ends through ports 40 and detecting leakage in known manner, parted joints pro' ducing such leakage. Subsequently the air pressure applied to the bladders 31 is replaced by suction to release the cigarettes 11 and the members 26 are withdrawn as their rollers 30 pass the end of the cam 35. On further rotation of the drum 10, faulty cigarettes are ejected in known manner by replacing the suction supply to the cradles 13 by air pressure in response to a delayed signal from the testing means. In other embodiments: (A) parted joints are detected by a mechanical feeler; (B) the ends of the cigarettes are gripped by pairs of semi-cylindrical, resiliently sprung, holding blocks; separate end sealing members, comprising flexible diaphragms having a central orifice for communication with the interior of the cigarettes, being used for supply testing air; and (C) sufficient tension is applied to completely separate weak joints and the cigarettes are then passed over a pair of rails that support good cigarettes by their ends but allow the parted pieces of faulty cigarettes to fall between them.
Patent GB-913449-A (GB)
Title: Catalyst composition and use thereof
IPC: B01D53/94
Filed: 1961-02-03
Abstract: An oxidation catalyst, useful for treating exhaust gases from I.C. engines, comprises a major proportion of Al2O3, between 3 and 30% V2O5 and between 0,001 and 10% of a platinum group metal (i.e. Pt. Pd, Rh, Ru, Os or Ir) and/or between 0,1 and 10% of a copper compound.  The catalyst may be a mixture of catalytic components or may be a single homogeneous catalyst composition.  Specified copper compounds are copper oxide and copper chromite.  The catalyst may be prepared by impregnating Al2O3 may be impregnated with V2O5 on the one hand and either a platinum group metal or copper on the other hand before combining the separately impregnated Al2O3 portions in a suitable ratio.  The Al2O3 used in preparing the catalyst is preferably g -Al2O3, derived from Al2O3 hydrogels, Al2O3 xerogels, Al2O3H2O or sintered Al2O3.  The preparation of a suitable Al2O3 is described in which Al2O3 is precipitated from an alkali metal aluminate, e.g. Na2Al2O4 or K2Al2O4, by addition of H2SO4 or (NH4)2SO4. Such an alumina has a low apparent bulk density. Alternatively "silica stabilized" Al2O3, i.e. Al2O3 containing 1-8% SiO2, may be used in preparing the catalysts described above.  The catalyst may be pelleted or extended into any described shape. Deposition of copper and or platinum group metals on Al2O3 may be effected by use of conventional soluble salts, e.g. Cu(No3)2 and H2PtCl6.  Examples are given.  Specification 686,495 and U.S.A. Specifications 1,914,557 and 2,644,516 are referred to.