baber/WOPTO huggingface dataset:
Patent GB-894603-A (GB)
Title: Improvements in or relating to vaccines
Inventor: SILVERMAN PAUL HYMAN
IPC: C12N1/10
Filed: 1959-09-02
Abstract: The invention relates to a non-living vaccine which contains antigens which stimulate the production in the host of antibodies and which gives protection, when administered by injection, against diseases caused by nematodes which are pathogenic to vertebrates.  Cleaned third-stage infective larv  collected from the f ces of infected animals are immersed in a medium which induces exsheathment, for example an aqueous solution of sodium hypochlorite and sodium chloride.  When exsheathment has taken place, the larv  are separated from the solution which is reserved.  The larv  are then treated with an antimicrobial agent, e.g. a mixture of penicillin and streptomycin, to reduce the possibility of bacterial or other contamination and cultured in a sterile balanced salt solution containing nutrient material, e.g. extract of liver, casein hydrolysis products, to permit their development into the histotrophic stages.  Incubation is at 37 DEG  C. with oxygenation. The culture medium and its contained larv  is then frozen and dried by freeze-drying.  The reserved solution from the exsheathment process, first treated to remove any unwanted inorganic ions may be added before drying.  The dried antigenic material thus obtained is suspended in a sterile aqueous vehicle before injection.  Specified nematode larv  are Dictyocaulus viviparus, Haemonehus contortus, Astertagia astertagi, Strongylus vulgaris, Trichostrongylus axei, Strongyloides papillosus, Astertagia circumeincta and Trichostrongylus colubriformis.  Specification 819,830 is referred to.
Patent GB-269749-A (GB)
Title: Improvements in processes and in electrolytic methods for separating and recovering the constituents of metallic salts in a state of fusion for use in the treatment of ores or chemical or metallurgical products
Inventor: ASHCROFT EDGAR ARTHUR
IPC: C25C3/00
Filed: 1925-11-27
Abstract: 269,749. Ashcroft, E. A. Nov, 27, 1925. Zinc and lead and other metals and non- metallic substances, obtaining.-In an electrolytic process using a fused electrolyte wherein one or more carbon or graphite electrodes are employed, sulphur or a sulphur compound or mixture is introduced in quantity sufficient to ensure the combination of the whole of the oxygen present in the electrolysis, so that destruction of the electrodes by oxidation, e.g. by atmospheric moisture or oxygen, is prevented. For example, sulphur may be added at regular intervals in an amount equal in weight to the chlorine liberated so as to produce the compound S2Cl2 which is condensed; when used in a cyclic process, such as that of Specification 216,695, in which the chlorinating part of the process is balanced against the chlorine-producing part, one or two tenths of this amount is used so as to produce chlorine containing volatile sulphur chlorides such as S2Cl4. If the chlorinating part of the cyclic process requires chlorine at a greater rate than the electrolysis produces it, the mixture of chlorine and chlorides of sulphur may be brought into contact with a mixture equivalent to S2Cl3, heated to 80‹ C. which yields a portion of the chlorine, the mixture having, for example, been produced at another stage of the process, by absorbing chlorine, in a sulphur chloride poor in chlorine. Instead of sulphur, liquid sulphur, chloride, or a sulphide such as lead or zinc sulphide when lead or zinc are being obtained, may be used, or sulphates, sulphites or oxides mixed in appropriate quantities with sulphides or sulphur. Specifications 10829/97, 10829A/97, and 17611/00: and 198,024, [Class 39 (iii), Heating by electricity], also are referred to.
Patent GB-303608-A (GB)
Title: Wireless receiving circuits
IPC: H04B1/16
Filed: 1927-11-09
Abstract: 303,608. Edison Swan Electric Co., Ltd., and Soundy, L. H. Nov. 9, 1927. Thermionic amplifiers and detectors. - The aerial circuit 1, 2 of a valve receiver is not tuned to the received waves, but impresses oscillations on the grid circuit of an amplifier valve 3, the plate circuit of which is coupled to the tuned grid circuit 5, 7 of the next valve 6, which may be a further amplifier or a detector valve. An auxiliary valve 12 also receives as input the oscillations in the tuned circuit 5, 7 and its plate crcuit is reactively coupled to the tuned circuit to increase the selectivity of the set. The impedance 2 in the untuned aerial circuit may be a resistance, inductance, or capacity, or combinations thereof.
Patent GB-159612-A (GB)
Title: Improvements in tractors
IPC: B62D51/04
Filed: 1919-12-02
Abstract: 159,612. Nobbs, G. H. Dec. 2, 1919. Cultivators; motor implements; frames and handles; adjusting parts of implements; propelling, starting, and stopping.-A tractor more particularly adapted for agricultural purposes for working, for example, between rows of crops has a single traction wheel 15 driven by an engine 24 supported on a triangular frame 11, 13 with diverging guiding handles 10 and a rear supporting wheel 30 which may be used as a fulcrum to lift the driving wheel off the ground by the operator pressing down on the handles, the frame being adapted for movable relation to the drawn or driven tool 40 when the latter is in the operative position, so that the swinging of the frame does not alter the relation of the tool to the ground. The battery 36 for ignition and the engine may be so positioned as to facilitate this tilting movement or they may be arranged further forward on tne frame to increase the weight of the tractor wheel. The engine drives the wheel 15 through pinions 16, 17 and a chain drive without in the preferred arrangement the use of an intermediate clutch. Ignition is controlled by a button switch 47 and the setting of the commutator on the engine shaft 22 is adjusted by a hand-lever 50 and link 19. Rear ground tools 40 are carried by a frame 36 pivoted about an axis 28 of the wheel 30 and are supported in the lowered position by a chain 67 attached to a lug 34. The side bars 35<11> have each a slot 62 with a notch 63 with which engages a pin 64 on the rear wheel support to hold the tools in the raised position. The engagement of the pins 64 and notches 63 can be accomplished by the operator tilting the machine about the rear wheel. By the depression of a footlever 66 the pins are withdrawn from the notches and the yokes swing down until the tools are in the ground. The tools may be fixed rigidly to a cross-bar 35 or pivotally mounted about a central pivot for use for example on a hillside.
Patent GB-1056956-A (GB)
Title: Centrifugal pipe-casting apparatus
IPC: B22D13/10
Filed: 1965-07-15
Abstract: 1,056,956. Centrifugal casting. UNITED STATES PIPE & FOUNDRY CO. July 15, 1965 [July 17. 1964]. No. 30179/65. Heading B3F.  Centrifugal pipe casting apparatus comprises a rotatable mould 1, Fig. 1 (not shown) and a pouring trough 2 which are relatively movable along or parallel to the axis of the mould to facilitate spreading molten metal uniformly along the inner surface of the mould. The trough 2 is mounted for axial rotation in bearings 10, 11 carried on a shifter plate 7 which in turn is supported on rails 18, 20 to permit displacement of the trough transversely when it is outside the mould when the pouring is completed. The transverse displacement of the trough after the pouring operation is effected by hydraulic means '21. Rollers 13 mounted on the extension' 6 of the trough are guided during this transverse movement by an angle member 14. At a predetermined position the rollers engage a coupling member 23 attached to a motor 25 which rotates the trough through a given angular displacement to discharge any residue molten metal from the trough. A spray lance may be mounted spaced from but parallel to the trough so that the internal surface of the mould can be spray coated by relative longitudinal movement between the spraylance and mould when the pouring trough is in its residue .discharge position outside the mould.
Patent GB-722190-A (GB)
Title: Gas turbine plant
Inventor: ADAMEK KARL HEINZ
IPC: F02C3/02
Filed: 1951-12-28
Abstract: 722,190. Gas-turbine plant. INCONEX HANDELSGES. FUR INDUSTRIELLE PRODUKTE - KONSTRUKTIONEN - EXPORT. Dec. 28, 1951, No. 30276/51. Class 110 (3). [Also in Group XXVIII] A gas-turbine plant in which air is compressed, passed through a rotating pressure exchanger into a combustion chamber or heat exchanger, then again through the rotating pressure exchanger to drive a turbine has guide vanes between the combustion chamber or heat exchanger and the rotor of the pressure exchanger to lead the hot gases passing tangentially into the periphery of the rotor and other guide vanes between the rotor and combustion chamber or heat exchanger to guide the fresh air out of the rotor. Air compressed in the compressor 2 passes through an opening 12 into chambers 14 formed between the radial blades 15 of a pressure exchanger rotor 3. This air expels the residual gases in the rotor through the opening 22 to the exhaust 22a. The rotor chambers 14 after rotation reach the opening 17 and hot gases from the combustion chamber or heat exchanger 16 flow tangentially into the rotor chambers and compress the fresh air. After further rotation of the rotor the opening 18 is reached and the fresh compressed air enters the combustion chamber or heat exchanger 16. After passing the opening 18, the rotor contains preponderantly hot gas which passes through the opening 13 and the guiding device 6 to the turbine 7. Guide vanes 19 are provided to lead the hot gas tangentially on to the periphery of the rotor 3 and guide vanes 20 to lead the hot air out of the rotor. Specification 559,839 is referred to.
Patent GB-833761-A (GB)
Title: Improvements in electric lamps
IPC: H01J5/08
Filed: 1956-10-04
Abstract: 833,761. Discharge lamps. GENERAL ELECTRIC CO. Oct. 4, 1956 [Oct. 30, 1955], No. 30301/56. Class 39(1). [Also in Group XI] Electric incandescent lamps and discharge lamps, more particularly for projection purposes, comprising a high intensity light source which emits both visable and infra-red rays, have a hermetically sealed glass bulb characterised in that diametrically opposite portions thereof are provided with dichroic filter means of complementary characteristics. Fig. 1 shows an incandescent lamp of the sealed-beam type comprising a filament 4 at the focus of a reflector portion 2 provided with a light-reflecting infra-red-transmitting coating, and a cover glass or lens 3 which is preferably concave and provided on either its inner or outer surface with a dichroic filter 9 which is highly transmissive of visible light and highly reflective of infra-red rays. The coating on the reflector portion 2 may consist of a film 7 of a semi-conductor such as germanium, silicon, antimony sulphide or selenium upon which is applied a single covering film 8 of dielectric, such as zinc sulphide of such thickness as to reduce the infra-red reflectance. The film of dielectric should have an optical thickness equal to one-fourth the wavelength of mean infra-red light, e.g. 900 to 1500 millimicrons and an index of refraction equal to the square root of the index of refraction of the semiconductor 7 in this same wavelength region. The cover glass or lens section 3 may be a plain window section of uniform thickness or may be configurated with lenses or prisms to provide any desired light distribution, and the dichroic filter provided thereon may consist of an extremely thin film of metal such as gold. In a modification, Fig. 2 (not shown), a bulb of spherical shape has a filament located at the centre, and one half of the surface is provided with a light-reflecting heat-transmitting filter coating, whereas the other half is provided with a light-transmitting heat-reflecting filter, the two coatings being divided by a plane extending through the bulb axis and including the terminal contacts.
Patent GB-980634-A (GB)
Title: Method of and apparatus for controlling the tension in tapes being lapped upon a core
Inventor: GRIEVE GEORGE THOMAS WILSON
IPC: H01B13/08
Filed: 1960-09-02
Abstract: 980,634. Bearings. BRITISH INSULATED CALLENDER'S CABLES Ltd. Sept. 1, 1961 [Sept. 2, 1960], No. 30356/60. Heading F2A. [Also in Divisions B6 and B8] The invention utilizes the elastic deformation of one or more bearings for controlling the tension in tapes being drawn off from a roll and lapped helically upon a core in machines of the kind wherein a lapping head revolves about the machine axis and the roll is mounted on the lapping head with the axis inclined or normal to the axis of revolution of the head. As the machine increases in speed centrifugally operated means reduces said elastic deformation. In Fig. 1 the tape ro111 is in a plane approximately parallel to a plane containing the axis of revolution of the lapping head and the roll is braked, on each of its two side faces, by a rotaable sleeve 4 radially disposed with respect to the machine axis. Each sleeve is mounted on a spindle 6 by means of bearings 5. The outer races 34 of the bearings 5 are rigidly located in position by sleeve liners 23, 36. A spring 37, on the spindle 6, exerts, when the machine is at rest or creeping, a compressive force on the inner race 35 of one bearing 5 to impart by elastic deformation of the balls and/or races of the bearing 5 a small part of the total braking tongue exerted on the roller 4. As the machine speeds up, a metal sleeve 42, that is freely slidable on the spindle 6, exerts a centrifugal force that acts against the spring, the force increasing with speed until it exactly counterbalances the spring 37 when full speed has been achieved. The spindles 6 are carried by pivoted tubular arms 8 and these arms contain bar springs biasing the sleeves 4 against the roll 1. The sleeves 4 are inclined slightly with respect to each other so as to act on only the outermost turns of the roll 1. In a modified construction, Fig. 4, the sleeves 4 are parallel to the axis of revolution of the lapping head and are supported by arms 56 lying in a plane normal to the machine axis. Whilst the machine is at rest or creeping a spring 84 on the spindle 52 elastically deforms a ball bearing 51 for the purpose described with reference to Fig. 1. As the machine speeds up, a metal sleeve 96 on the arm 56 is forced against the elbow of a bell crank lever 94 to cause the free end 95 of the bell crank lever to act against the spring 84. At full speed the spring 84 is exactly counterbalanced by the centrifugal force acting on the bell crank lever. Specification 956,787 is referred to.
Patent GB-1021126-A (GB)
Title: Injection moulding machines
IPC: B29C45/68
Filed: 1964-07-31
Abstract: 1,021,126. Injection moulding machines. K. AOKI. July 31, 1964, No. 30360/64. Heading B5A. In an injection moulding machine one mould part 1 is moved towards the other 1<SP>1</SP> by toggle links 6, 7 and 8 operated by hydraulic means 12, 13, and final closing pressure is applied by hydraulic means 15, 16 when the toggle is straightened, means being provided for adjusting the movement of the mould part 1 to allow for different sizes of moulds. The adjustment means comprises a tumbuckle which in one embodiment (Fig. 2, not shown) comprises a threaded sleeve engaging threaded ends of rods 6, 7. In a second embodiment (Figs. 4 to 6, not shown) the tumbuckle comprises a threaded rod 21 engaging two threaded sleeves 19, 20, a ring 26 and pin 24 being provided for accurately adjusting the tumbuckle and pinch bolts 24, 25 for locking it in position.
Patent GB-1126264-A (GB)
Title: Upgraded technical o,o-dimethyl phosphorodithioate of diethyl mercaptosuccinate ("malathion") and method for preparing same
IPC: C07F9/165
Filed: 1966-07-06
Abstract: 1,126,264. Upgrading the technical 0, 0- dimethylphosphorodithioate of diethyl mercaptosuccinate. AMERICAN CYANAMID CO. 6 July, 1966 [30 Sept., 1965], No. 30410/66. Heading C2C. [Also in Division A5] Technical O,O-dimethylphosphorodithioate of diethyl mercaptosuccinate (I) is purified by admixing with an aqueous solution of one or more of Na 2 S, Na 2 SO 3 , K 2 S, K 2 SO 3 , (NH 4 ) 2 S and (NH 4 ) 2 SO 3  to establish a pH of at least 7, separating the resulting phases and recovering the organic phase containing washed (I) with a diethyl fumarate content of between 0.001- 0À5% by weight.
Patent GB-486949-A (GB)
Title: Improvements relating to fuel injection in compression ignition oil engines
IPC: F02B3/00
Filed: 1936-11-09
Abstract: 486,949. Supplying liquid fuel. JAFAR, D. U. D. Nov. 9, 1936, No. 30421. [Class 7 (iii)] [Also in Group XXVIII] Fuel injection into the combustion chamber of a compression-ignition engine commences at 40 to 50‹ before top dead centre with a pilot charge of 15 to 25 per cent of the main charge, which is delivered about 40‹ later. The fuel charges may be delivered by separate pumps or by a single pump operated by a face cam or by a cam having an arcuate part 3, at a constant distance from the axis of the cam, disposed between two operating surfaces 1, 4. A distributer may feed the fuel to a plurality of engine cylinders.
Patent GB-262436-A (GB)
Title: Improvements in or relating to connecting terminals for electrical conductors
IPC: H01R4/32
Filed: 1926-12-01
Abstract: 262,436. Soc. Anon. du MatÚriel Simplic, (Assignees of Guillard, A. P. G.). Dec. 3, 1925, [Convention date]. Plug couplings; binding-posts. - In order to facilitate isolation of any wire connected to a distribution board, each terminal consists of two binding-posts a connected together by a removable staple g. Each binding-post is hollow and slit at f to form a resilient socket for the staple. The wire e is connected to the binding-post by passing it through the slot f and clamping it bv a nut d. A nut c secures the binding-post to the base. The end of the staple assists in holding the wire e in case the nut works loose.
Patent GB-800469-A (GB)
Title: Improvements in or relating to a bearing for a timepiece
IPC: G04B31/08
Filed: 1956-10-05
Abstract: 800,469. Watch bearings. MONTRES ROLEX S.A. Oct. 5, 1956 [Oct. 7, 1955], No. 30457/56. Class 12 (1). In a watch bearing comprising an end stone 5 and a pierced jewel 3 mounted in a setting 2, an annular oil reservoir 9 of V-shaped cross-section is provided between the end stone 5 and the setting 2, the reservoir being accessible from outside the bearing and communicating, through capillary passages, with the space between the end stone 5 and pierced jewel 3. A disc 6 is located between the stone 5 and jewel 3 and has a frusto-conical wall 6a which extends into the reservoir 9 and facilitates the retention of the lubricant therein. Radial apertures are provided in the disc 6. Alternatively the disc 6 is omitted and capillary passages 13 are provided in the setting.
Patent GB-691037-A (GB)
Title: Production of pale coloured or colourless polyvinyl phenols
IPC: C08F16/02
Filed: 1948-11-24
Abstract: Vinyl phenols polymerized in bulk, in solution or in aqueous dispersion yield pale or colourless polymers if access of molecular oxygen is prevented during the reaction, e.g. by maintaining the mixture quiescent, reacting in absence of air or under an inert gas such as nitrogen, or in a completely filled vessel.  The aqueous dispersion is at or below a pH of 7. Polymerization of the liquid monomers may be by heat or ultra-violet light in the presence of catalysts, e.g. acetyl, crotonyl, benzoyl, tertiary butyl and isopropyl - benzene peroxides, t.- butyl perbenzoate, and t.-butyl and isopropyl benzene hydroperoxides, hydrogen peroxide, and alkali-metal or ammonium persulphates.  Low molecular weight material may be extracted from the polymer during a shredding process by solvents such as benzene, toluene, xylene, petrol ether, petrol, carbon tetrachloride, chloroform, trichlorethylene, di-ethyl ether or mixtures thereof.  A small amount of ethanol may be first used to soften or dissolve the polymer.  Specifications 409,132, 691,035 and 691,036 are referred to.
Patent GB-300265-A (GB)
Title: Improvements in and relating to vacuum tubes
IPC: H01J9/395
Filed: 1928-10-22
Abstract: 300,265. British Thomson-Houston Co., Ltd., (Assignees of Fuller, T. S.). Nov. 11, 1927, [Convention date]. Vacuum tubes.-Highly oxidizable metals, for example barium or strontium, are introduced into the interior of electric discharge devices, such as thermionic valves, electric lamps &c. for the purpose of removing deleterious gases in the form of an aluminium alloy which is stable in air, the proportion of aluminium varying from 75 to 50 per cent. Aluminium is melted in an inert atmosphere, for example of argon, and the highly oxidizable metal is wrapped in aluminium foil before introduction. An alloy containing about equal parts of strontium and aluminium is friable and may thus be secured to the anode by a binder such as a cellulose solution. In a modification, Fig 2, the powdered alloy is secured in a capsule 8, carried by one of the support wires, by a binder or a wire gauze cap, or it may be formed as a pellet and forced into the capsule. Alternatively, the alloy is carried in a container 11, Fig. 3, having a base 9 mounted on a wire 10, slits 12 being provided to allow the strontium vapour to escape. By heating the capsule &c. to a dull red heat, the strontium only is vaporized. Reference has been directed by the Comptroller to Specification 151,611.
Patent GB-175351-A (GB)
Title: Improvements in an attachment for pens, pencils and the like
IPC: B43K29/18
Filed: 1920-10-29
Abstract: 175,351. Thomas, H. W. Earp-. Oct. 29. 1920. No Patent granted (Sealing fee not paid). Pencil holders; knife holders; penholders; pen extractors; blotting - appliances; erasers; pencil sharpeners. - An attachment for pencils, pens, &c. is adapted to serve as a knife, saw, paper-knife, eraser, nib-extractor and holder for blotting-paper. A tubular shank 1 holds a piece of erasing substance 6, and terminates at its other end in a flat blade which is either formed integrally with, is is held in jaws at the end of the shank. The blade is fcrmed with saw-teeth 5 on one edge; a sharp edge 4 to serve as a knife and pencil-sharpener; a notch 3 to act as a nib-extractor; and a blunt edge 2 for use as a paper-knife. A hook 11 is provided to serve as a clip for holding a piece of blotting-paper. The device may be held in the end of a pencil &c. holder 9 by friction when the blade is enclosed, or by means of screwthreads 8<1>.
Patent GB-291477-A (GB)
Title: Process for the manufacture of articles from synthetic resins or shellac
IPC: C09D5/44
Filed: 1926-12-03
Abstract: 291,477. Dunlop Rubber Co., Ltd., and Davies, R. C. Dec. 3, 1926. Emulsions, making. - A liquid dispersion for use in electrodeposit.ion of a synthetic resin is prepared in the following way. 30 parts of a phenol-formaldehyde condensation product, which is brittle and at an intermediate stage, yet insoluble in dilute alkaline liquids, is dispersed colloidally in 100 parts of water containing ¢ per cent ammonia to which has been added 2 per cent gelatine and 2 per cent casein as protective colloids. To a second dispersion consisting of 100 parts aqueous ammonia (0.5 per cent), 3 parts casein, 1 part gelatine is added sufficient formaldehyde to neutralize the free ammonia. 3 parts of the first dispersion are added to 2 parts of the second, together with 1-2 per cent of a modifying agent such as castor oil, linseed oil, or shellac in the form of an emulsion in water or dilute ammonia. In another example, casein is dispersed in 1 per cent. ammonia solution to a concentration of 10 per cent. Sufficient formaldehyde is then added to neutralize 95 per cent of the ammonia. A modifier such as gelatine or a water emulsion of castor oil to the extent of 5 per cent of the casein may be added. Vulcanizing-agents, modifiers such as castor oil, softeners such as oleic acid, adulterants such as carbon black, binding agents such as shellac or dyes such as turkey red, may be added to the dispersion. Hexamethylenetetramine may be added as a catalyst. Insoluble resins mav be dispersed in a colloid mill. Vulcanized or unvulcanized latices of rubber, guttapercha, or balata may be added for deposition along with the synthetic resin.