baber/WOPTO huggingface dataset:
Patent GB-489280-A (GB)
Title: Improvements in or relating to methods for carrying out chemical reactions with reactive or atomic hydrogen
IPC: C22B5/00
Filed: 1937-01-21
Abstract: Metals are obtained by treating metallic sulphides with reactive hydrogen obtained by passing molecular hydrogen through an electric arc, e.g. between tungsten electrodes, at a temperature of 4000 DEG C. or over.  The sulphide may be heated, and the reactive hydrogen may be diluted with an inert gas, e.g. helium or argon, or with molecular hydrogen free from moisture, air, oxygen or oxygen-containing gases or with gaseous saturated hydrocarbons such as methane or vaporized saturated hydrocarbons which are solid or liquid at ordinary temperatures.  The presence of bodies such as palladium, steel and iron, which act as poisons for the reactive hydrogen, should be avoided.  Molecular hydrogen may be fed through the arc continuously.ALSO:Metals are obtained by treating metallic sulphides with reactive hydrogen obtained by passing molecular hydrogen through an electric are, e.g. between tungsten electrodes, at a temperature of 4000 DEG  C. or over.  The sulphide may be heated, and the reactive hydrogen may be diluted with an inert gas, e.g. helium or argon, or with molecular hydrogen free from moisture, air, oxygen, or oxygen-containing gases, or with gaseous saturated hydrocarbons such as methane or vaporized saturated hydrocarbons which are solid or liquid at ordinary temperatures.  The presence of bodies such as palladium, steel, and iron, which act as poisons for the reactive hydrogen, should be avoided.  Molecular hydrogen may be fed through the arc continuously.
Patent GB-750603-A (GB)
Title: Improvements in and relating to driving means particularly for sewing machines
IPC: D05B69/22
Filed: 1952-01-23
Abstract: 750,603. Sewing-machines. ROTHENBORG SPECIALMASKINER FOR SYINDUSTRIEN AKTIESELSKAB. Jan. 23, 1952 [March 30, 1951], No. 1905/52. Class 112. [Also in Group XXIV] Driving; stopping.-In order that a machine driven through a clutch from a continuouslyrunning motor or shaft may be stopped in a desired position, the driven member of the clutch, when disengaged from the driving member, is driven at low speed by auxiliary driving means which may be stopped at the required position by manual or automatic control means; when the stopping is obtained by manual control, continuous slow running is possible. The auxiliary drive may be running while the main drive is effective, or may be started only when it is required to move the machine from one position of rest to a desired position. Two alternative final stopping positions are preferably provided for in the case of automatic control, the selection being made by a switch controlled by a separate treadle from that controlling the clutch or by auxiliary treadles incorporated in the clutch treadle as described in Specification 750,686. In one form of driving unit, Fig. 2, a belt pulley 60 driving the machine is fixed on the shaft 56 of a driven clutch member 62, this shaft being mounted in a sleeve 50 angularly movable by a treadle-actuated arm 64 so that by engagement of a cam-slot 70 in the sleeve with a fixed pin 72 the member 62 is moved into or out of engagement with a driving member 40 on the shaft of an electric motor 27; when the member 62 is disengaged from the member 40 it is engaged with a clutch member 76 rotatable at slow speed by an auxiliary motor 59 through a belt and worm gear 94. The auxiliary motor may be fed inductively from the stator of the main motor, and may be reversible, its direction of running being controlled by a hand- or footcontrolled switch (actuated mechanically or by solenoid) or, when two stopping positions are provided for, being different for the two positions. In an alternative driving unit, Fig. 9, in which the stopping is controlled mechanically by a second treadle, the auxiliary drive is derived by a belt 114 from friction gearing at the opposite end of the shaft of the main motor 27. The vertical shaft 106 is moved axially by a treadle-controlled yoke 120 to carry a coned wheel 108 or 110, according to the direction of rotation required, into engagement with a similar wheel 30 on the motor shaft. Specification 750,690 also is referred to.
Patent GB-113139-A (GB)
Title: Improvements in and relating to the Art of Metering Electricity.
Inventor: SCHWEITZER EDMUND OSCAR
IPC: G01R11/56
Filed: 1917-02-08
Abstract: 113,139. Schweitzer, E. O. Feb. 8, 1917. Two-part couplings combined with electric switches. An electrolytic meter is arranged to serve as the key of a main switch, so that current can only be taken when the meter is in position. The meter carries a hollow arm through which its conductors pass to the insulated members 46, 47, Fig. 4, of the switch key. A hole of corresponding shape in the cover of the switch box allows the key to be inserted between the jaws 54, 55, Fig. 10, when the switch is in the " off " position, the key being turned to bring the blades 56, 57 into engagement with fixed contacts. In the meter shown in Fig. 13, the key arm 83 projects from the side of the casing and a notch 104 in the key prevents reverse connexion.
Patent GB-852371-A (GB)
Title: Pigmented polyolefin composition and method of manufacture
IPC: C08K3/04
Filed: 1958-01-21
Abstract: A composition which cross-links on heating comprises a thermoplastic polyolefin, an organic peroxide and a colloidally subdivided neutral or alkaline filler which when compounded alone with the polyolefin does not cause bubbling on heating to 500 DEG F. The polyolefin may be derived from ethylene, propylene, n-butylene, pentylene and mixtures thereof, and the peroxide may be a hydroperoxide, dicumyl or cumyl t-butyl peroxide or t-butyl perbenzoate.  Specified fillers are furnace type, thermal type and calcined furnace type carbon blacks of particular particle sizes and metal oxides of particle size between 20 and 1,000 millimicrons.  Antioxidants, softeners, plasticizers, solvents and dyes may also be present and moulded articles may be obtained. Specification 843,617 is referred to.
Patent GB-1413945-A (GB)
Title: Light guides
IPC: G02B6/036
Filed: 1974-01-16
Abstract: 1413945 Light guides LICENTIA PATENTVERWALTUNGS GmbH 16 Jan 1974 [10 March 1973] 01986/74 Heading G2J A light guide comprising a core of transparent material, e.g. glass or plastics, having a diameter much larger than the wavelength to be propagated, has a transparent sheath of lower refractive index which is sufficiently thin to allow a fraction of the light impinging on the core-sheat boundary at an angle of incidence greater than the critical angle to pass through the sheath. The sheath may be between 0.3 and 0.5 Ám thick, and a second sheath having the same refractive index as the core may surround the first, and a third sheath which strongly absorbs the propagating wavelength may surround the second. The core or the inner sheath may be a fluid.
Patent GB-322682-A (GB)
Title: Improvements in or relating to insulators
IPC: H01B17/02
Filed: 1929-01-21
Abstract: 322,682. Bullers, Ltd., and Miller, J. G. Jan. 21, 1929. Insulators.-An insulator of the type in which a headed pin is held in the insulator cavity by filling material and by a resilient ring fitted between the pin head and the shoulder of the opening, is fitted with a second resilient ring bearing against the cavity walls beneath the first ring and adapted to be contracted for insertion in the cavity. In the construction shown, a helical spring 5, Figs. 1 and 2, fitted in the insulator cavity 3, surrounds the stem 4 of an insulator pin which is formed with a head 1. A second resilient split ring 6, made of spring wire or strip, and of star formation, as shown in Fig. 2, encircles the pin 4 below the spring 5, as shown in Fig. 1. For insertion in the insulator cavity, the ring 6 is pressed into the contracted form shown in Fig. 3. In a modified construction, the split ring 6 may be of castellated formation.
Patent GB-763912-A (GB)
Title: Improvements in tobacco cutting machines
IPC: A24B7/14
Filed: 1955-01-24
Abstract: 763,912. Cutting tobacco. KORBEE, K. Jan. 24, 1955 [Jan. 30, 1954], No. 2052/55. Class 5(1). In a rotary-cylinder tobacco cutting machine the upper mouthpiece jaw 20 carries an independently movable pressure plate 21 pivoted at 22 and provided with compression springs 23, adjustable by screw bolts 21 bearing down on the spring. The upper conveyer 7 is free to pivot about its back end so that its mouthpiece end can rise and fall in accordance with the thickness of the tobacco stream 24. The jaw 20 also rises and falls with the conveyer end which is guided by a slide block 18 and link 17, Fig. 1 (not shown).
Patent GB-511479-A (GB)
Title: Improvements in two-stroke cycle engines of the sleeve valve type
IPC: F01L5/10
Filed: 1939-01-21
Abstract: 511,479. Valves. KAMMER, G. S. Jan. 21, 1939, No. 2181. [Class 7 (vi)] In two-stroke engines having a single sleeve valve with combined reciprocating and oscillating movement, the exhaust ports in the cylinder are rectangular and controlled by the upper edge of the sleeve valve, and the inlet ports in the cylinder each comprise an opening edge with an oblique portion transverse to the direction of movement of the sleeve when inlet commences, and located on a re-entrant portion of the port, the ports in the sleeve being correspondingly formed. Fig. 2 shows two of the cylinder inlet ports 1, 2 each having the oblique re-entrant opening-edge B, C about at right-angles to the direction at the point B of the path 4 of travel of the sleeve. The sleeve port 3 is shaped with a corresponding opening-edge, and also has an extension to the right adapted to co-operate with supercharging-ports 5, Fig. 8, in the cylinder. The valve gear is such that the lower half of the elliptic path 4 of the sleeve is traversed in about one-third of the time taken for the whole path, for exampe, as described in Specification 506,326.
Patent GB-584838-A (GB)
Title: Process for the preparation of disazodyestuffs
IPC: C09B35/28
Filed: 1945-01-29
Abstract: Disazo dyes are produced by coupling one molecular proportion of tetrazotized 1-amino-4-(41 - amino) - benzoylaminobenze with one molecular proportion of salicylic acid or substitution product thereof and then with one molecular proportion of 2-benzoylamino-5-hydroxynaphthalene - 7 - sulphonic acid.  In examples, 1-amino-4-(41-amino)-benzoylaminobenzene is coupled with (1) salicylic acid and 2 - benzoylamino - 5 - hydroxynaphthalene - 7 - sulphonic acid; (2) 2 - hydroxy - 3 - methyl - benzene-1-carboxylic acid and 2-benzoylamino-5-hydroxynaphthalene-7-sulphonic acid; (3) 2-hydroxy-4-methylbenzene-1-carboxylic acid and 2-benzoylamino-5-hydroxynaphthalene-7-sulphonic acid; and (4) 2-hydroxy-3-chlorobenzene - 1 - carboxylic acid and 2 - benzoyl - amino-5-hydroxynaphthalene-7-sulphonic acid.  The dyestuffs dye cotton and regenerated cellulose fibres in red shades which become fast to light and washing after treatment with copper salts. Specifications 338,111, [Class 2 (iii)], 442,672 and 497,745 are referred to.
Patent GB-143950-A (GB)
Title: Improvements in road wheels of the sheet metal type, more particularly in such wheels which are used with automobiles
IPC: B60B11/06
Filed: 1919-01-30
Abstract: 143,950. Austin Motor Co., and Austin, Sir H. Jan. 30, 1919. Double and multiple wheels arranged side by side; disk wheels. - Relates to disk wheels of the type which are formed with radial corrugations and are clamped within correspondingly - formed recesses m a shoulder or flange on the tube, and consists in forming the corrugations at their inner ends with straight inclined sides c<1>, h and so disposing them that they are symmetrical about a median plane perpendicular to the axis of the wheel. The corrugations are clamped in recesses on a hub flange d<1>, the relative dimensions of the recesses and corrugations being arranged to permit of a wedging action when the clamping-means are tightened up. The clamping-means may consist of bolts e or set-pins, with or without the interposition of a washer g<2>. The washer is formed with projections and recesses. on its inner face corresponding to the corrugations. and may be similarly formed on its outer face or be left plane. In another form, the clamping-means consists of a nut e<1> bearing on a washer g<1> splined on the hub. As applied to a twin wheel. the disks A<1>, C may be nested together at the centre, and both clamped in the same recesses in the hub flange, or the recesses to take the disks may be formed on opposite sides of the same flange or on different flanges.
Patent GB-563389-A (GB)
Title: Improvements in and relating to etching processes
IPC: C23F1/04
Filed: 1943-02-12
Abstract: 563,389. Etching. NEEFE, W. F. DE. Feb. 12, 1943, No. 2334. Convention date, Jan. 28, 1942. [Class 100 (ii)] A transfer for applying an etching resist to the surface of metal, glass or other material tu be etched comprises a backing sheet bearing a stencil film of the design, the stencil film being covered by a film of acid resisting material soluble in a solvent in which the stencil film is insoluble. The resist film may be continuous or in the form of a stencil corresponding to the stencil film. The stencil film may consist of a suitable varnish or synthetic resin lacquer not readily soluble in hydrocarbon solvents, such as petrol, kerosine, turpentine or benzine, and the acid resist may consist of bitumen, wax, or rosin, or a mixture of any two or all of them. The transfer is applied to the surface to be etched and caused to adhere thereto by rendering its surface tacky by treatment with methylated spirit, or the surface to be etched may be coated with an acid resistant adhesive soluble in the hydrocarbon solvent. The backing sheet is removed and the solvent applied to remove the etching resistant film and adhesive exposed through the stencil openings and the metal &c. is then etched. The backing sheet may be of paper or metal foil.
Patent GB-574451-A (GB)
Title: Improvements in and relating to aircraft gun turrets
IPC: F41H7/03
Filed: 1942-02-24
Abstract: 574,451. Gun turrets. BOULTON PAUL AIRCRAFT, Ltd., and DOE, A. Feb. 24, 1942, No. 2392. [Classes 92 (i) and 92 (ii)] An aircraft gun turret 1, 3 has a forward compartment x for the gunner who occupies a seat 31 and controls the turret through a handle 25 and sight 28, this compartment being isolated in an air-tight manner from the remaining compartment y which houses the guns and equipment therefor. The compartment y is provided with apertures furnished with venturi disc devices of known kind for exhausting the gun gases. Lateral shoots are provided for evacuating the spent cartridge cases and belt links. The handle 25 controls a combined electric and hydraulic power unit 21 for elevating the guns and training the, turret. The sight is moved synchronously with the guns. An ammunition receptacle 23 is provided.
Patent GB-1090895-A (GB)
Title: Improvements in or relating to hatch covers
IPC: B63B19/19
Filed: 1966-01-19
Abstract: 1,090,895. Hatch covers; removable decks. GOTAVERKEN A.B. Jan. 19, 1966 [Feb. 9, 1965], No. 2465/66. Heading B7S. In an eight, section hatch cover for ships one group of sections 6, 7; 8, 9 folds in a fore and aft direction, the other group of sections 1, 2; 4, 5 folds in an athwartships direction, hatch beams 10, 11 carried by roller tracks (12), Fig. 2 (not shown), on the longitudinal sides of the hatch coaming 3 are arranged in closed position to carry the group of sections 6, 7; 8, 9 and are provided with T-shaped locking bolts (17), Fig. 3 (not shown), for releasable connection alternatively to sections 2, 5 of the other group of sections or to the coaming. Each T-shaped locking bolt (17) is fitted with limited movement to bracket (15) and end plate (16) of each end of hatch beams 10, 11 and in one locking position connects the hatch beams with the sections 2, 5 by means of horizontal flange portion (18) and in another locking position co-operates with lugs (21) in the coaming by means of locking plate (20) at the end of the vertical web portion (19) of the bolt. The arrangement may be utilized on weatherdeck covers as well as on tweendeck covers and may be used to form removable tweendecks such as those for carrying motor vehicles.
Patent GB-746407-A (GB)
Title: Process for alkylating phenol
Filed: 1954-01-27
Abstract: A process for the alkylation of phenol comprises reacting phenol with an olefine which is an aliphatic hydrocarbon which contains one or more double bonds or hydrocarbon substitution product thereof or a mixture of such olefines at a temperature between 325 DEG  and 425 DEG  C. in the absence of an added alkylation catalyst.  The olefine starting material should not contain double bonds only in ring structures.  Addition products of phenol with polymers of the alkene, especially with dimerized alkene are produced in addition to the addition product of phenol with monomeric alkene.  Alkenes mentioned are those containing 7 to 22 carbon atoms, especially 14 to 18 carbon atoms, in their molecules.  In examples: monocetyl phenol, monocetyl-dimer-phenol and cetene polymers are obtained by heating phenol and cetene-1 in pressure vessels (1); in a similar process a mixture of alkenes containing 14-18 carbon atoms obtained by cracking paraffin wax are employed (2); in similar processes alkenes or alkene mixtures having 7,7-10, 8, 10-12, 16-20 and 20-22 carbon atoms in the molecule are employed (3) and in a similar process to (1) a mixture of C15-C18 alkenes is employed at various temperatures and in a nitrogen atmosphere (4).  The process may be carried out continuously in a tube or one or more agitated reactors, the latter being preferably connected in series.  The continuous process is preferably carried out with a single-phase reaction mixture.
Patent GB-205417-A (GB)
Title: Improvements in or relating to boots, shoes, coverings, protectors or attachments for the feet of animals
IPC: A01L5/00
Filed: 1923-01-27
Abstract: 205,417. Giles, W. H., and Ross, J. A. Jan. 27, 1923. Renewable hoof-fitting surfaces.-An overshoe comprises a base c, which may be of reinforced rubber, having a thickened edge c<1>, a part c<2> which embraces the front and sides of the hoof and screws e bv which the overshoe is secured to the heels of the ordinary shoe. The base and the part c<2> have ventilation holes g.
Patent GB-469730-A (GB)
Title: Improvements in or relating to clothes driers
IPC: D06F57/04
Filed: 1936-01-27
Abstract: 469,730. Tents. BUTLER, H. Jan. 27, 1936, No. 2513. [Class 20 (i)] [Also in Group XIV] Horizontal arms 6, carrying hooks 12 for supporting clothes lines, are carried in sockets in a block 4 which is revolubly mounted on a spindle 3 carried by a post 1. The arms 6 are provided with sleeves at their ends, each sleeve carrying an upper and a lower hook adapted to be attached respectively to supporting chains secured to a disc on the spindle 3 and to rings on guy ropes 15. The guy ropes 15 are provided at their lower ends with cleats and rings for attachment to tent pegs. The framework is covered by canvas to form a tent which may form a total enclosure for sleeping purposes. The tent sides may be omitted and the device used as a sun umbrella.
Patent GB-996019-A (GB)
Title: Improvements in or relating to roller mountings
IPC: B41F31/15
Filed: 1962-07-03
Abstract: 996,019. Printing apparatus. SCHNELLPRESSENFABRIK A G. HEIDELBERG. July 3, 1962 [April 21, 1962], No. 25365/62. Heading B6C. An inking roller is rotatably mounted in a frame which is pivoted to a pivoted member or members with spring means acting to move both the frame and the pivoted member or members for maintaining the said roller resiliently in contact with two other rollers or cylinders. A printing machine comprises a plate cylinder 1, two inking rollers 2 and 2<SP>1</SP> and an ink distributing roller 3, the rollers 2 and 2<SP>1</SP> being independently mounted in frames 4 and 4<SP>1</SP> each frame including a spindle such as 5 rigidly connected to the arms of bearings 6 and 7 which support the roller 2. The spindle 5 of the frame 4 is mounted in members 11 and 12 which are rotatable on bolts 13 and 14 on the side walls 8 and 9. Eccentrics 15 and 16 mounted on shafts 17 and 18 are adapted to act on the free arms of the members 11 and 12 so that on actuation of worm and gear adjusting devices 19 and 20 the pressure of the roller 2 against the cylinder 1 is adjusted. The pressure of the roller 2<SP>1</SP> is similarly adjustable. Spring means act to press the rollers 2, 2<SP>1</SP> between the cylinder 1 and the roller 3, and further spring means maintain the eccentrics in engagement with the members 11, 12. A double cam 21 is provided to trip either or both of the rollers 2 and 2<SP>1</SP> and acts on the frames 4 and 4<SP>1</SP> through the bearings 6 and 61. In the embodiment of Fig. 4 an ink distributing roller 35 is mounted in a frame 31 and adapted to be tripped out of contact with two inking rollers 42, 43 on movement of a handle 37. The frame includes a spindle 32 and two bearing arms 33, 34 which are mounted on members 40 and 41 pivoted on a shaft 44. Springs 39, 40 act on the supports of the roller 35 to press it between the said rollers 42, 43.
Patent GB-1215605-A (GB)
Title: Mounting for the hairspring and balance staff pivot in synchronised escapements
Inventor: EPPE HENRY L
IPC: G04B18/02
Filed: 1968-01-17
Abstract: 1,215,605. Clocks and watches. FREDERIC L'EPEE & CIE. Jan.17, 1968 [Jan.24, 1967], No.2609/68. Addition to 1,061,554. Heading C3T. The synchronized escapement described in the parent Specification is modified in that the anchorage 9 for the outer end of the balance spring (not shown) is rotatable mounted on the hub 7 of the oscillating support 8 to facilatate putting the balance wheel into beat.
Patent GB-347270-A (GB)
Title: Improvements in coil winding machines
IPC: H01F41/06
Filed: 1930-01-25
Abstract: 347,270. Tension arrangements for thread, wire, and like winding machines. GEDDES, J. W., Katu, Bodley Road, New Malden, Surrey. Jan. 25, 1930, No. 2654. [Class 120 (ii).] A tension device for winding threads, wires, &c., on reels, frames, &c., particularly for electric coils of fine guage wire &c. comprises a horizontally pivoted lever d, f, the longer arm d carrying a pulley e over which the wire &c. c passes, the other arm f supporting a weight W suspended at the end of a spring h. The spring h is of such length that variations of tension due to extensions during working are negligible. Preferably oscillation of the weight W is damped by a washer i of felt &c. held between discs i<1> and working in a loosely fitting dashpot j. The point of suspension of the weight W &c. is above the line joining the centre of the pulley e and the fulcrum d<1> to compensate for the variation of pull on the pulley e due to changes in the angles the wire makes with the pulley. In an example, for winding wires between 75, 80 mils a spring 13 inches long, extending to 25 inches under the tension due to the weight, which is 90 ounces, is used.
Patent GB-634182-A (GB)
Title: An improved manufacture of silica gel-containing catalysts
IPC: C10G11/04
Filed: 1947-01-28
Abstract: Silica-magnesia, silica-alumina, or silica-alumina-magnesia cracking catalysts are made by preparing an acidic silica hydrosol, with or without impregnation with an aluminium salt, e.g. sulphate, chloride, or nitrate, and adding an aqueous slurry of magnesia, hydrated magnesia, or magnesium carbonate, either sufficient to neutralize the free acid, when a silica-alumina catalyst containing, e.g. 10-20 per cent alumina, is produced, or in excess, when a silica-magnesia catalyst containing, e.g. 25-38 per cent magnesia, or a silica-alumina-magnesia catalyst containing, e.g. 25-38 per cent magnesaa and 0.5-5 per cent alumina, is produced.  Sulphuric acid and sodium silicate are mixed with aluminium sulphate and the mixture sprayed together with a magnesia slurry, e.g. 2 parts water to 1 part magnesia, into a liquid, e.g. oil, bath.  The microspherical gel particles fall through the oil into a water bath and pass to a washer wherein they are water washed at 125-200 DEG  F., thence to a drier and finally pass to an activator wherein they are activated at 1100-1400 DEG  F.