baber/WOPTO huggingface dataset:
Patent GB-489307-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N3/34
Filed: 1937-01-25
Abstract: 489,307. Television. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Jan. 25, 1937, No. 2191. Convention date, Jan. 24, 1936. [Class 40 (iii)] A method of effecting interlaced scanning is characterized in that the frames do not all contain the same number of lines, certain frames differing from one another by a whole number of lines, and the number of lines per complete picture divided by the number of frames per complete picture being a whole number plus a fraction. The main object of the invention is to avoid a defect which may arise when the frame impulses do not all arrive at equal time intervals from the respective immediately preceding line impulses. The distance through which the scanning ray returns at the end of each partial scan is always the same, and a formula is given for determining this distance in relation to the heights of (or number of lines in) the several frames and the number of frames per complete picture. The Figure shows how the invention is applied to an hypothetical double interlaced system having for simplicity 6 and 5 lines respectively in the two frames constituting the complete picture. Line impulses H (eleven per picture) and equally spaced impulses B at double the complete picture frequency are applied respectively to the first and fourth grids of a hexode valve, in the output circuit of which impulses represented by the graph c are thus produced. These impulses, which occur alternately at separations of 6 and 5 lines, may be prolonged in duration so that after addition to the line impulses shown at a they are capable of use for synchronizing purposes. The mixed signals (line impulses H and frame impulses V) are represented by the graph d. The duration of the impulses B may be greater than the duration of a line interval, instead of being less as represented in the graphs a, b. Instead of a hexode, a suitably connected triode may be used for producing the signals shown at c. The application of the invention to an hypothetical triple interlaced system having 22 lines, with 7, 8 and 7 lines respectively in the partial scans, is described. The use in a cathode-ray receiver for receiving pictures transmitted by a system in accordance with the invention, of a saw-tooth generator of the blocking oscillator type is described, whereby the extent of the fly-back of the cathode ray is the same at each frame impulse, independently of the number of lines in the preceding frame. At the end of each partial scan, the ray therefore does not return to the same starting position for the next partial scan.
Patent GB-787977-A (GB)
Title: Electrolysis process
IPC: C07C53/08
Filed: 1954-03-12
Abstract: 787,977. Electrodialysis. HOOKER ELECTROCHEMICAL CO. March 12, 1954 [April 2, 1953], No. 2196/57. Divided out of 787,976. Drawings to Specification. Class 41. A process for decomposing the salts of organic aliphatic acids, e.g. sodium acetate, to produce the acid and base comprises introducing the salt into an intermediate compartment of a multi-compartment electrolytic cell having an anode compartment containing a soluble ionized compound which gives rise to hydrogen ions during electrolysis, e.g. sulphuric acid, hydrochloric acid or sodium sulphate, and a cathode compartment containing the cation resulting from electrolysis of the salt, interposing an anionic permselective diaphragm between the anode and intermediate compartments and a permselective diaphragm between the intermediate and cathode compartments, impressing a voltage across the electrodes therein. Specifically, the apparatus is a three-compartment cell with a cationic diaphragm adjacent the cathode as described in Specification 739,722, the salt being introduced into the centre compartment and the acid being formed in the anode compartment. The purpose of the ionized compound is to increase the current density, and products other than oxygen may be formed at the anode, e.g. where the compound is hydrogen chloride, chlorine is formed.
Patent GB-456046-A (GB)
Title: Improvements in and relating to materials for road making, building construction, and other purposes
IPC: C04B33/02
Filed: 1935-01-24
Abstract: Earth or soil containing about 62 to 86 per cent silica, 8 to 26 per cent alumina, and 3 to 12 per cent iron and alkali oxides, is heated for about 2 1/2 hours at 1200 to 1500 DEG  C., and while plastic is moulded into shapes or compressed on a road in a continuous operation.
Patent GB-813245-A (GB)
Title: Improvements in or relating to steering gears for vehicles
Inventor: LIND JOHN ALEXANDER
IPC: B62D3/12
Filed: 1956-01-24
Abstract: 813,245. Steering vehicles. ALFORD & ALDER (ENGINEERS) Ltd. Jan. 22, 1957 [Jan. 24, 1956], No. 2369/56. Class 79(5) [Also in Group XXIV] In a steering gear of the kind comprising in combination, a pinion 15 supported in bearings 19 in a housing 13, a rack 16 extending transversely of the pinion 15 and meshing therewith, a support member 11 extending from the pinion housing 13 parallel to the rack 16 and supporting a bearing member 28 for the rack adjacent the pinion and a further bearing 33 for the rack at a distance from the pinion, the support member 11 comprises a sleeve through which the rack 16 extends, this sleeve being made from standard tube cut to length, and the pinion housing 13 is a tubular member secured to the sleeve 11 around the rack 16, for example by copper brazing. The pinion housing 13 is also cut from standard tube and is brazed into a recess 12 milled out in one side of the sleeve 11. The bearing member for the rack adjacent the pinion comprises a sliding bearing block 28 that is pressed by a spring 30 against the back of the rack 16 to keep it in firm engagement with the pinion teeth. The housing for the block 28 comprises a tube 27 brazed into an aperture in the sleeve 11. The sleeve 11 is secured to a vehicle frame by means of brackets 34, 35 brazed thereto. The bearings 19 may comprise needle roller bearings, and the pinion 15 has a reduced end 21 which passes through a retaining ring 22 which is retained in place in the housing 13 by a lip spun over on to it. Alternatively the pinion may be supported in plain bearing bushes, shoulders formed on the pinion engaging the ends of the bushes to retain the pinion in place in the housing. In manufacturing the steering gear the various tubular housing parts and preferably the brackets 34, 35 are assembled and held together in correct positional relationship, with a brazing compound applied at the metal surfaces to be united, and brazing effected by passing the assembly through a furnace. Specifications 766,141 [Group XXIV] and 813,246 are referred to.
Patent GB-107183-A (GB)
Title: Improvements in the Manufacture of Rollers employed in Mangles and like Machines.
Inventor: MITCHELL MOOREHOUSE
IPC: D06C15/08
Filed: 1917-02-22
Abstract: 107,183. Mitchell, M. Feb. 22, 1917. Rollers for mangles and like machines, made from a maple or other tree trunk from which the core is bored out prior to seasoning, are provided with a trunnion bearing a having a central boss 2 for the roller shaft and an annular flange 3. The boss and the flange are provided with tapering fins 4, 5 adapted to be embedded in the wooden roller. An annular recess f is provided to allow for the swelling of the roller, and corrugated steel strips d arranged concentrically are driven into the ends of the roller to prevent splitting. Specification 16955/15 is referred to.
Patent GB-136697-A (GB)
Title: Improvements in Devices for Distributing Seed and the like.
Inventor: BAILEY JOHN JAMES
IPC: A01C7/02
Filed: 1919-02-03
Abstract: 136,697. Bailey, J. J. Feb. 3, 1919. Planting - tools; hand-tools for depositing manure. - An appliance for distributing seeds or manures along drills consists of a body or receptacle provided w i t h means for throwing it into vibration when it is drawn along a cord, rod, or the like. The receptacle may be made of sheet tin, prepared paper, celluloid, &c., and of the form shown in plan in Fig. 1. The walls c are doubled over to form flanges which project below the base to engage with the guide-cord used in forming the seed drill. A cover-plate e may be provided at the rear end. Converging vanes are adjustably clipped to the side walls and form an adjustable outlet h through which the seeds &c. pass when the receptacle is inclined slightly. The bottom of the receptacle a may be roughened or ribbed, and provided with a depression near the rear end. A number of such appliances may be arranged in sets and adapted to pack inside one another. In the modification shown in Fig. 8, a single central rib d<1> is provided on the underside for setting up the vibration. In another, the rib d<1> is replaced by a spring blade or wire.
Patent GB-970346-A (GB)
Title: Improvements in insulated conductors and processes for the manufacture thereof
IPC: H01B3/44
Filed: 1961-01-23
Abstract: A dielectric material is distributed throughout an unsintered tetrafluoroethylene polymer (preferably polytetrafluoroethylene), which composition is then sintered to form an insulating layer comprising a dielectric material in the form of spherical droplets preferably having a diameter of 1 to 10 m .  The dielectric material exemplified is a polysiloxane.  In addition fillers such as potassium titanate may be added.  The composition in its unsintered form is preferably coated round a wire and the composite is then sintered to form a conductor having improved corona resistance.
Patent GB-178569-A (GB)
Title: Improvements in drilling machines
IPC: B23B39/00
Filed: 1921-01-20
Abstract: 178,569. Pearn, W. A. Jan. 20, 1921. Drilling-machines.-A vertical drilling-machine comprises a column c provided with horizontal guides b at the upper end, on which the drilling head is adapted to slide. A rotatable table d is carried on a knee bracket e which is provided with T-slots and is mounted to permit of vertical and transverse adjustment on the column c. A change and reverse gear is mounted in the base of the vertical column and drives bv belt and change gear 5 the horizontal shaft 4 which is geared to the drill-sprindle a. Hand and power feed are provided, the latter being belt driven from the shaft 4 through change gearing 9. A spring counterbalance is provided for the spindle.
Patent GB-109737-A (GB)
Title: Appliances for Playing a Board Game.
Inventor: PANTHER FREDERICK
IPC: A63F3/00
Filed: 1917-02-24
Abstract: 109,737. Panther, F. Feb. 24, 1917. Board games.-A chequered game board has two opposite corners distinctively marked and three rows of squares on each side marked with outlines corresponding in size to the bases of the pieces used. These pieces consist of representations of artillery A, each occupying three squares, cavalry B, each occupying two squares, and infantry C, each occupying one square. One infantry-piece D on each side carries a standard, and at starting is placed on the marked corner square.
Patent GB-1201252-A (GB)
Title: Compositions
Inventor: DREYFUSS PATRICIA MARIE
IPC: C08L71/00
Filed: 1969-01-17
Abstract: 1,201,252. Chlorinated P.V.C. compositions; polymerizing tetrahydrofuran. B. F. GOODRICH CO. 17 Jan., 1969, No. 2762/69. Headings C3P and C3R. Chlorinated P.V.C. having a density of 1À52-1À62 g./ml. at 23‹ C. and a stability sufficient to withstand heating in air for 10 minutes at 375‹ C. is compounded with 2-20 parts, per 100 parts by weight of chlorinated P.V.C., of a rubbery, polymerized tetrahydrofuran having an intrinsic viscosity in benzene at 25‹ C. of at least 1À5 dl./gm. The chlorinated P.V.C. is stabilized with dibutyl tin thioglycollate and in the example contains titanium dioxide and polyethylene lubricant and the P.T.H.F. is stabilized with a hindered phenol. The molecular weight of the P.T.H.F. can be adjusted to a desired value during its production by variation of the relative proportions of a two-part catalyst consisting of (a) p-chlorophenyl diazonium hexafluorophosphate and (b) trimethyl orthoformate. Intrinsic viscosities from 1À1 to 16 are obtained in an example and reference is made to intrinsic viscosities up to 20.
Patent GB-828855-A (GB)
Title: Improvements in fire-extinguishing compositions
Inventor: WILSON PAUL VERNON
IPC: A62D1/00
Filed: 1957-01-25
Abstract: A fire-extinguishing composition comprises chlorobromomethane of which the stability is increased by the incorporation of a minor amount of an organic cyclic oxide containing not more than five carbon atoms in the heterocyclic ring and being an anhydride of an alkylene glycol, or of a substituted alkylene glycol, or of glycerol. The preferred organic oxide is a -epichlorhydrin, others specified being ethylene oxide, tetrahydrofurfuryl alcohol, tetrahydropyran and 3-hydroxypropylene oxide.  a -Epichlorhydrin also acts as a corrosion inhibitor, e.g. in the presence of mild steel Other halogenated hydrocarbons may be present in the fire-extinguishing compositions, e.g. carbon tetrachloride and methyl bromide.  Specification 771,572 is referred to.
Patent GB-727029-A (GB)
Title: Improvements relating to machines for mowing and collecting grass and like crops
IPC: A01D43/077
Filed: 1952-02-02
Abstract: 727,029. Cutting and loading grass. WALLEY & CO., Ltd., E. S., and WALLEY, F. G. April 10, 1953 [Feb. 2, 1952], No. 2838/52. Classes 6 (2) and 6 (3). [Also in Group XXX] A grass mower and loader comprises a plurality of mowing-units 3 which feed cuttings to the inlet of a pneumatic conveyer 11, 24 by way of an intermediate conveyer 18, the pneumatic conveyer having an outlet conduit 24 discharging into a trailer 2 and being driven by the tractor 1 which tows both the loader and the trailer. The mower units comprise rotary reels driven by jointed shafts 4 in turn driven by a jointed shaft 9 coupled to the lateral power-take-off on the tractor. The units feed on to the lower run 21 of the conveyer 18 which comprises endless chains 19 interconnected by slats 20. The material accumulates at a guide 21a and is then propelled up an inclined surface 22 to fall into a hopper 23 communicating with the fan 11. The conveyerstructure is carried on castors 33 and the mowing units may be lifted, for transport. Specifications 676,380 and 691,765 are referred to.
Patent GB-247003-A (GB)
Title: The manufacture of new dyestuffs of the pyrone series
IPC: C09B11/28
Filed: 1925-01-31
Abstract: 247,003. Carpmael, W., (Farbenfabriken vorm. F. Bayer & Co.). Jan. 31, 1925. Phthalein dyes; anthraquinone dyes. - Dyestuffs of the pyrone series are prepared by condensing 2 : 4- or 2 : 6-dioxybenzoic acid or a derivative or mixture thereof with an aromatic aldehyde substituted or not in the o-position but not containing an hydroxyl group in the o- or p-position to the carbonyl group, and oxidizing the resulting leuco compound. The dyes may be sulphonated before or after oxidation. In an example 2 : 4-dioxy-3-methylbenzoic acid is condensed with 2 : 6-dichlorbenzaldehyde by stirring in strong sulphuric acid solution and the leuco acid oxidized with nitrous acid, nitric acid, or a nitrocompound such as m.-nitrobenzene sulphonic acid, the melt being poured on ice and filtered. The dystuff dyes wool scarlet from an acid bath and an intense red if after-chromed. Examples also show the sulphonation of the leuco acid and subsequent oxidation and also sulphonation of the dyestuff itself, the shades on wool of the resulting dyestuffs being similar to those obtained above. Instead of 2 4-dioxy-3-methylbenzoic acid may be used 2:4- or 2 : 6-dioxybenzoic acid, and as aldehydes the following :- benzaldehyde, o-sulphobenzaldehyde, o-chlorbenzaldehvde. 2 - chlor - 5-sulphobenzaldehyde, 2 : 6-dichlor-3-oxybenzaldehyde, 2:4: 6-triohlor- 3-oxybenzaldehyde, 2-chlor-4-diethylaminobenzaldehyde, 1 3-diohlor-2-anthraquinone aldehyde 3- or 4-chlorbenzaldehyde, 4-chlor-3-sulphobenzaldehyde, 4-nitrobenzaldehyde, and 4-diethylaminobenzaldehyde. 4-Chlor-3-sulphobenzaldehyde may be prepared by heating 4-chlorbenzaldehyde. with strong cleum at 100‹ C.
Patent GB-726183-A (GB)
Title: Method of applying cutting liquid to a metal working tool
IPC: B23Q11/10
Filed: 1952-02-04
Abstract: 726,183. Machine-tool details. GULF RESEARCH & DEVELOPMENT CO. Feb. 4, 1952 [May 29, 1951], No. 2857/52. Class 83 (3). A method of applying cutting liquid to a metal-cutting tool consists in directing a jet of the liquid into the angle between the cut face of the work and the relief face of the tool, the jet being discharged from an orifice at a pressure of at least 300 lbs./sq.in. and with a speed in excess of 40 times the speed of the work. In a lathe, a thin jet from a nozzle 10 at 260 ft./sec. cooled the work to 75‹ F., the cutting speed being 110 ft. /min., feed 0.011 in./rev., depth of cut 0.150 in., and liquid temperature 1,000‹ F. (With a conventional oil flow of 4 ft./sec. the cooling effect was 30‹ F.). The initial pressure of the jet was 450 1b./sq. in., the pressure between the tool and work 50,000 1b./sq. in., the temperature at the cutting-edge of the tool 1,000‹ F., and the boiling point of the liquid 500‹ F. It is stated that the liquid, e.g. oil, vaporizes, passes between the irregularities of the tool-edge and the work, and condenses on the opposite side of the cut, thus lubricating the tool on both sides. To investigate the flow, pressure tapping-points were formed in a tooledge. The work surface finish obtained is 50 root-mean-square micro inches compared with the conventional 175 r.m.s. micro inches. The method is suitable for use with tungsten carbide tools using a soluble oil (5 per cent oil, 95 per cent water). Smoke, vapour and splash may be, quenched by a conventional oil stream applied above the tool. The jet nozzles may have one or more circular orifices, Fig. 6, or an orifice in the form of a slit. Figs. 9 and 10 show the invention applied to a milling cutter and a planing tool.
Patent GB-420947-A (GB)
Title: Improvements in or relating to lubricating apparatus
IPC: F16N25/00
Filed: 1934-01-27
Abstract: 420,947. Lubricators. BLISS, J., 30, Cheapside, London. Jan. 27, 1934, No. 2862. [Class 12 (iii)] A lubricator comprises a trough - like distributing compartment 14 fed from a reservoir.10 through an aperture 12 near the lower end of the latter and supplying accumulation chambers 150 having outlets leading to the parts to be lubricated through sight-feed devices 16. The oil level in the compartment 14 is kept at constant level by bird - fountain action, the reservoir 10 which is air-tight having an air-tube (not shown) leading from the outlet passage 220 to the top thereof. Baffles 19, having apertures 18 divide the compartment 14 into intercommunicating parts, the baffles being provided with air release vents 190 leading from each accumulation chamber 150. The valves 28 controlling the flow from the compartments 150 are connected by cranks 29 and link 30, 31, to the handle 26 of the main valve 22 controlling the flow from the reservoir 10 to the compartment 14. All valves 28, 22, can thus be opened or closed together.
Patent GB-603777-A (GB)
Title: Improvements in or relating to incendiary cartridges
IPC: F42B12/44
Filed: 1942-03-05
Abstract: 603,777. Incendiary cartridges. GARNER, F. H., HARDIMAN, E. W., PRIZEMAN, A., and KENYON, A. J. F. March 5, 1942, No. 2874. [Class 9 (ii)] An incendiary cartridge comprises a casing 1 of metal or cardboard or other suitable insulating material, a primer 4 of gunpowder, an incendiary mixture 6 of magnesium or magnesium alloy in large particles mixed with explosive and electric firing means for the primer. The incendiary mixture is adapted to be ejected to cause fires and the electric firing may be controlled from a distance by means of a pressure-operated switch device as described in Specification 598,046, [Group XXXVII]. In one form a plug 7 of wood separates the incendiary mixture from a space 11 containing a battery 12 and a spring 14 contacting with a metal plate 8 on the plug to which is connected one lead 9 of a detonator 5, the other lead from which is connected to a metal cap 10 which can be connected by the pressure switch to the battery terminal 15. In a modification the incendiary mixture is contained in an inner cardboard tube 19 surrounded by a metal tube 18 to which one terminal 9 of the detonator 5 is attached, the battery being, as before, in contact with a spring 14 interposed between the metal casing of the battery and the metal tube containing the incendiary material.
Patent GB-230599-A (GB)
Title: Improvements in means for the prevention of theft
IPC: G08B13/04
Filed: 1924-02-04
Abstract: 230,599. Carpenter, G. B. Feb. 4, 1924. Window shutters.-A theft-preventing shutter f is automatically interposed by breakage of the glass a of a window show case &c. The shutter is held open against the action of rubber cords h by a bevelled detent l which is retained in engagement therewith by the armature m of a magnet in the open circuit of the battery n. This circuit is closed by the release of the armature e on opening the closed circuit containing a battery c by breaking of one of the wires b behind the window &c. The detent l is released and the shutter rises and is retained in the closed position by one of the gravity-actuated detents p. The cords h are provided with extensions i' and are tensioned by depressing the levers and engaging same with the retaining detents k. To open the shutter the detents k are released and the detents p disengaged from the shutter by a push bar q; the shutter is then lowered and the detent e engaged therewith by means of a hand-operated spring-controlled plunger r, the tension of the cords being then restored by the levers i. Rubber &c. packing is provided at the sill on the angle-bar s and on the frame at t to lessen shock and noise and exclude dust. Both circuits of the device are controlled by branches of a common switch d.
Patent GB-120324-A (GB)
Title: Improvements relating to Starting Devices for Motor Vehicles.
Inventor: WILSON JOHN
IPC: F02N3/04
Filed: 1918-02-19
Abstract: 120,324. Wilson, J. Feb. 19, 1918. Turning-gear. - A hand or foot actuated starter, adaptable to various types of motor-vehicle engines, comprises a sleeve a having on one side a loosely mounted bevel wheel d and a pivoted arm f carrying a pawl h for yielding engagement with the teeth of the bevel wheel. A second bevel wheel k is adapted to be fixed on the engine or transmission shaft or the shaft of a starting-handle. The arm f is provided with holes for attaching a pedal or a link connected to a handle near the driver's seat. The pawl h is double-ended, the end to be used depending on whether the device is actuated by handle or pedal. It is held in engagement or disengagement by a spring i, and may be brought into engagement by means connected to lugs s. When the starter is pedal-actuated, the wheel k is fixed on the transmission shaft and the sleeve a is loosely mounted on this shaft between the wheel k and a collar. In a handle-actuated form, the sleeve a is mounted over the end of the engine shaft in front of the car, and may be secured to the front of the car by the flange b or slidably mounted on a fixed sleeve t, Fig. 4, which is fixed around the end of the engine shaft and has a spring v for holding the bevel wheels in mesh. The sleeve a may be moved, to bring the wheels out of mesh when the engine has started, by means of a fork pivoted on a lug t<1> and engaging the flange b. In another form, the sleeve a is rotatably but not slidably mounted on the shaft of a starting-handle, on which shaft the bevel wheel k is mounted.
Patent GB-414586-A (GB)
Title: Improvements in tea rolling or like machines
IPC: A23F3/12
Filed: 1934-01-30
Abstract: 414,586. Door-operating mechanism. MARSHALL, H. D., and MARSHALL, SONS, & CO., Ltd., Britannia Iron Works, Gainsborough, Lincolnshire. Jan. 30, 1934, No. 3129. [Class 65 (i).] Doors 2 in the table of a tea rolling machine are closed by a toggle and link mechanism operated by a handle. The doors open by gravity then a pair of catches 12 are released by rods operated by the shaft 15 and crank 14. The doors are closed by rotating the member 8 by the handle 10. Arms 6 and links 7 cause abutments 5 to lift the doors to closed position.