baber/WOPTO huggingface dataset:
Patent GB-201175-A (GB)
Title: Improvements in or relating to telegraphy or telephony
IPC: H04B1/16
Filed: 1923-07-19
Abstract: 201,175. Compagnie pour la Fabrication des Compteurs et Materiel d'Usines Ó Gaz. July 20, 1922. [Convention date]. Void [Published under Sect. 91 of the Act]. Electrolytic cells, arrangements of; converting pulsating currents into steady continuous currents.-Continuous current for use with thermionic valves used in wire or wireless telegraphy or telephony is obtained from alternating current bv means of an electrolytic rectifier and a set of inductances and capacities for smootliing the current. The Figure shows a transformer 4 and electrolytic rectifiers 6, 7 with smoothing inductances 12, 13 and condensers 8, 9, 14, supplying the anode of a wireless receiving valve 20.
Patent GB-571227-A (GB)
Title: Improvements in or relating to flexible sheet material comprising a sheet or surfacecoating containing polyvinyl chlorides
IPC: D06N3/06
Filed: 1943-11-10
Abstract: Coating a sheet material comprising gelatinised polyvinyl chloride by applying a dispersion of polyvinyl chloride powder, in a solution of a hard, resinous, transparent, polymerized, unsaturated compound other than polyvinyl chloride with which polyvinyl chloride is compatible, in a volatile solvent in which the polyvinyl chloride is insoluble, and then evaporating the volatile solvent.  The term "polyvinyl chloride" includes also chlorinated polyvinyl chloride and interpolymers of vinyl chloride with acrylic acid esters, methacrylic acid esters or vinyl esters. The compatible resins mentioned are polymethacrylic esters of saturated aliphatic alcohols containing one to three carbon atoms, polyvinyl esters of lower fatty acids, polyvinyl acetals, polymerized acrylic and methacrylic nitrile, and various alkyd resins such as glycerol phthalate and glycerol succinate. Solvents specified are benzene, toluene, xylene, ethyl acetate, butyl acetate, ethyl lactate, acetone, methyl ethyl ketone, dioxane, methyl alcohol, methoxy-ethyl alcohol, ethoxy-ethyl acetate, chloroform, methylene chloride, and trichlorethylene. Plasticizers, fillers and pigments, e.g. tricresyl phosphate, dibutyl phthalate, yellow ochre, Prussian blue, chrome yellow and carbon black may be incorporated.
Patent GB-226256-A (GB)
Title: Improvements in or relating to the manufacture of textile fabrics
Filed: 1923-07-19
Abstract: 226,256. Dreyfus, H. July 19, 1923. Crimped fabrics; figured fabrics; yarns specially treated, fabrics with; materials, special, fabrics containing.-To produce crape-like effects on fabrics by means of highly-twisted yarns of cellulose acetate or other esters or ethers of cellulose such as ethyl, methyl or benzyl cellulose, these yarns before being highly twisted are provided with a protective coating serving to resist permanent elongation of the yarn &c. under the high twist while preserving the elasticity thereof. This coating is subsequently wholly or partly removed from the yarns &c., either before or after the weaving, and the fabric is finally subjected to a craping treatment. The coating agent may comprise boiled-off liquor, or preparations containing gum, gelatine or starch, or sizes or sizing preparations furnishing a plastic dressing of starch, glucose and oil, or mixtures thereof, and the coating may be removed by means of boiling water, soap solution, diastofor or otherwise. The treatment with boiling water may serve as the wetting treatment of the craping operation. The fabric may be treated with a swelling agent for the cellulose acetate &c, comprising acetic acid or a thiocyanate, the fabric being afterwards dried preferably under tension. The weft and warp may consist wholly or partly of yarns of cellulose acetate &c. The warp may also consist of yarns of other materials. The highly-twisted weft yarns of cellulose acetate &c. may be employed throughout the fabric or in parts only, and to produce a flat fabric yarns of opposite twists may be used. The yarns of cellulose acetate &c. may comprise continuous filaments or may be spun from short lengths or chappe fibres. Also two or more ends of cellulose acetate &c. may be spun together and may comprise different cellulose derivatives, or respective yarns of different cellulose derivatives may be used.
Patent GB-1046835-A (GB)
Title: Voltage tunable magnetron
IPC: H01J25/56
Filed: 1964-05-05
Abstract: 1,046,835. Magnetron oscillators. VARIAN ASSOCIATES. May 5, 1964 [May 14, 1963]' No. 18681/64. Heading H1D. A voltage tunable magnetron includes an interdigitating arrangement of anode segments disposed in a cylindrical array, around which extend at least three terminal rings, the outermost rings being coupled to the opposite ends of some of the segments, and to the opposite ends of the axial opening of an enclosing toroidal cavity resonator, and the remaining segments being connected to the central ring, which is itself connected to the resonator by at least one conductive rod. Electrons emitted from the thermionic cathode 18 pass into the annular interaction space 15, in which an axial magnetic field is maintained, and which is formed by the segments 16 of a cylindrical interdigital structure. Fig. 2, and an electrode 17 which is at the potential of the cathode; the segments 16 are positive with respect to the electrode 19, which is itself positive with respect to the cathode. Alternate segments 16 are connected at each end to terminal discs 35 and 36, which are at R.F. earth potential, and project beyond ceramic wall portions 37, 38, 39 to connect with circumferential portions 40, 41 of a copper resonant cavity 12. The remaining segments 16 are connected at their centre points to terminal disc 34, which is connected to the central portion of the wall of the resonator by one or more solid copper or conductively coated rods 42, the impedance of which maintains disc 34 effectively R.F. isolated. The Q and the resonant frequency of the resonator are adjustable by change in the number or crosssectional area of the rods 42, and the R.F. output is obtained from a coaxial connection 44 connected to disc 34 by a conductive rod 43. In a further embodiment (Fig. 4, not shown), the ceramic wall portions 38, 39 are dispensed with, and the resonator is sealed to, or is integral with, the discs 35 and 36, and constitutes the envelope of the magnetron.
Patent GB-498310-A (GB)
Title: Improvements in or relating to telephone or like systems
IPC: H04Q1/36
Filed: 1937-07-05
Abstract: 498,310. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and SAVILLE, W. July 5, 1937, No. 18684. [Class 40 (iv)] In an outgoing impulse repeater, the usual bridge relays D, I are shunted by a non-linear resistance unit NLR in order to absorb the inductive kick produced when the direct bridge is removed at the end of an impulse train by the relapse of dialling relay C. The resistance may be silicon carbide mixed with carbon and/or tungsten or molybdenum in the form of a metal sprayed disc, as described in Specification 493,375.
Patent GB-702175-A (GB)
Title: Improvements in and relating to mixing apparatus
IPC: B01F15/02
Filed: 1951-08-09
Abstract: 702,175. Mixing-appliances. LODIGE, W., and LODIGE, F., [trading as LODIGE OHG, GEB.]. Aug. 9, 1951, No. 18737/51. Class 86 A mixing machine comprises a stationary or axially rotatable cylindrical vessel b and a coaxial shaft c rotatable at a greater rotational speed than the container and carrying spirally disposed scoops f which are shaped so that they pick up the material being mixed from the wall of the vessel and scatter it inwardly and axially through the vessel. The vessel b is provided in its wall with one or more orifices e adapted to be opened or closed and through which fluid may be admitted to the material within the drum as the shaft c is rotating. For the purpose of charging or discharging the vessel b a valve d in the vessel is provided which may be aligned with either of the bellows i and n connected respectively to filling and discharge hoppers g and k.
Patent GB-118080-A (GB)
Title: Improvements in or relating to Electric Ignition Apparatus for Internal Combustion Engines.
Inventor: COURTIER JULES
Filed: 1917-12-17
Abstract: 118,080. Courtier, J., and Courtier, P. July 12, 1917, [Convention date]. Drawings to Specification. External spark gaps; testing and indicating.- Defective sparking at the plug terminals is over come by inserting in series a spark gap of adjust- able dimensions. A rod may be formed to slid. in the brush-holder of the ignition magneto by means of a pin and helical slot, the spark gap being formed between the end of the rod and the central contact of the distributor, or between con- tacts on members carried by the rod and distri- butor. The contact carried by the rod may be arranged to pass over a series of contacts, between each of which a gap is formed. These contacts may be mounted on the face of a disk. or be arranged in a vacuum tube. According to the Specification as open to in- spection under Sect. 91 (3) (a) the size. of the. gap may be adjusted automatically by means of a governor, or manually; a micrornetric arrange- ment may be employed. The contacts may ba formed with ribs cooled by a fan &c. One contact may consist of mercury which the other is ad- justed to touch, the disturbances of the surface causing an intermittent series of sparks. The ad- justment of the contacts may be made conjointly with those of the throttle, air-admission, and igni- tion timing. The contacts may be arranged around the circumference of a disk, or around a spiral, helical or rectangular frame; a vessel con- taining any suitable gas or liquid may be em- ployed. This subject-matter does not appear in the Specification as accepted.
Patent GB-973337-A (GB)
Title: Improvements in and relating to filter presses
IPC: B01D25/21
Filed: 1963-05-13
Abstract: 973,337. Filter presses. SEITZ-WERKE G.m.b.H. May 13, 1963 [May 17, 1962], No. 18781/63. Heading B1D. A filter press has a fixed cover 10 with internal dividing and reinforcing partitions 11, 12 and 13 ; communication through the inner compartment recesses 20 when the cover is closed against the plate of the filter packet and outer compartments 14 and 17 which serve to conduct the liquid on the unfiltered and filtered sides through inlet and outlets 18 and 19. In the description of Fig. 4 (not shown) a hood shaped closure plate is disclosed to have a buffering effect inside the filter.
Patent GB-1346811-A (GB)
Title: Recoverable mooring block
IPC: B63B21/29
Filed: 1971-06-03
Abstract: 1346811 Recoverable mooring block DORNIER SYSTEM GmbH 3 June 1971 [8 Aug 1970] 18810/71 Heading B7S A recoverable mooring block 2 for anchoring a ship has three projections 4 each of which tapers to a point 7 directed in use towards the sea bottom 15 so that the block has contact surfaces inclined to the sea bottom. The embodiment of Fig. 3 has an additional projection 20 and a buoyancy chamber 26 from which water or compressed air can be jetted through apertures 32 in the faces of projection 20 to assist in raising the mooring block from the bottom.
Patent GB-354925-A (GB)
Title: Improvements in or relating to steam superheaters
IPC: F22G7/02
Filed: 1930-06-20
Abstract: 354,925. Steam superheaters i valve components. WHITTLE, R. W., of Superheater Co., Trafford Park, near Manchester, and SUPERHEATER CO., Ltd., Bush House, Aldwych, London. June 20, 1930, Nos. 18905 and 19611. [Class 123 (iii).] Valve housings of the kind having a number of relatively small valves 7 regulating the flow of pressure fluid such as steam to an engine or other steam-using apparatus consist of a wrought-metal housing produced by boring or machining a solid wrought iron or steel billet or forging to form superposed fluid pressure supply and delivering chambers 1, 2, separated by a partition having a number of apertures formed by boring or the like for valve seats 11. A balancing chamber 3 maybe similarly formed and connected to the supply chamber by a vertical bore 9 having a valve seat and guide 10 for a valve 6. Balancing pistons 13 of the valves 7 work in borings 12 the valves 6, 7 being operated by a rock shaft 5 having bearings which close the ends of the balancing chamber. Borings 14, 15 which are formed initially to permit the boring of the valve apertures and to give access to the valves are closed by covers 16. Flanged inlet and outlet neckings are welded or screwed and welded to bores communicating with the chambers 1, 2. A steam superheater header may be combined with the valve housing and comprise longitudinal bores 19, 20, for saturated and superheated steam closed by discs welded or screwed and welded at their ends. Transverse pockets 21 are bored at intervals below the channels 19, 20 and connected alternately with them by borings 22. The ends of the superheater elements are connected to the pockets 21 by bored passages 23 to which the elements are secured by means such as bridge bars or clamps having a steel or T-headed bolt for engagement with a hole or slot in the header. The superheated steam channel 20 is connected at intervals to the supply chamber 1 by transverse borings 29. The pockets 21 are omitted in a modification. The header may be separately formed by boring a solid billet or by an assembly of wrought steel components, the whole being secured to the valve housing.
Patent GB-866863-A (GB)
Title: Apparatus for manufacturing sheets of asbestos-cement
IPC: B28B1/52
Filed: 1959-06-03
Abstract: 866,863. Cylinder paper-board machines &c. MAGNANI, A. June 3, 1959 [June 6, 1958; April 9, 1959], No. 19021/59. Class 96. A forming-cylinder 4 for the manufacture of paper, paper-board, or asbestos-cement sheets, has ribs 8 covered by a felt 3 to form suctionchannels 9 which aid in felting a web 14 from a slurry 2 in a vat 1. The ribbed surface of the forming-cylinder 4 is in sections side-by-side along its length, each section having suction and drainage holes 10 at each end of each channel, the holes 10 communicating with suction slots 13 in a support 5 for the shell of the cylinder 4, raised portions 12 bearing against the shell to seal the slots and to provide a compartment 11 which is at atmospheric pressure. At the ends of the cylinder 4, the channels 9 are closed by pieces having smooth surfaces, which also act as guides for the edges of the felt 3. In another form, pulp is supplied to the vat 1 by a pipe delivering over the outer vat wall, and is stirred in the vat, and resilient rubber seals are provided. for the lateral end-walls of the vat 1; and fork-shaped sectors on adjustable sleeves restrict suction to the required openings.
Patent GB-187671-A (GB)
Title: Improvements in fluid pressure engines
IPC: F01L33/02
Filed: 1921-07-14
Abstract: 187,671. Baker, W. E. July 14, 1921. Rotary cylindrical valves ; slide valves, cylindrical; expansion, varying. - The casing 1 of a radial revolving-cylinder engine is provided with a bushing 2 and revolves around a cylindrical valve made in two parts 3, 4 secured to a shaft 5, Fig. 2, provided with roller bearing which are adjustable to enable the body 3 to float. Arranged within the shaft 5 is an adjustable plate 8 by which the cut-off is varied and, in conjunction with an adjustment of the shaft 5, reversal is effected. The body 3 is sector-shaped, has admission ports 9, 10, and is housed in an enclosing-ring 4 which is split at 12 to permit variations due to temperature changes and wear. The part 4 has a peripheral exhaust channel 20 and a cylinder 18 containing a piston 17 upon which leakage steam entering the chamber 21, separating the inlet and exhaust ports of the valve, acts to contract through lever mechanism 14 the ring 4. In a modification, the parts 3, 4 are integral, the piston 17 and lever mechanism is dispensed with, and the valve is provided with cavities to reduce the weight. In the construction shown in Fig. 4, the casing 23 is provided with flanges 24 which seat in grooves 25 in the valve and restrict the escape of steam into the cavities. In the application of the valve to a radial, revolving-cylinder engine, Fig. 6, the cylinder exhaust first passes through piston-controlled ports and then through the channel 20 to the adjacent cylinder which is open to exhaust. The cylinders 33 are mounted upon a crank casing 38 which is secured to a propeller shaft 39 arranged on the side opposite to the valve. In a modification, the power-shaft is coaxial with and within the valve sleeve 5 and carries a driving pinion.
Patent GB-430860-A (GB)
Title: Improvements in or relating to electrically operating liquid level indicators
IPC: G01F23/70
Filed: 1934-06-28
Abstract: 430,860. Indicating liquid levels. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and LYON, G., Ranmoor, Fulmer Road, Gerrards Cross, Buckinghamshire. June 28, 1934, No. 19119. [Class 123 (i)] [See also Group XXXVII] In an electrically operated low-level alarm, for hot liquids, a float is adapted to bridge the gap between two contacts, but means are provided to prevent operation solely by contraction of the liquid upon a fall in temperature or by drawing off the liquid. A float c moves within a cage b in a tank a above a pair of insulating pegs d, e, one of which is hollow and carries a contact point g. The other peg is adjustable in height and carries a bimetallic strip n. If the temperature is above a predetermined point, the free end of the strip n rises above the level of the ends of the pegs d, e, so that when the liquid level falls the float makes contact with the strip n and point g and completes the circuit of a warning device. If the temperature is below the predetermined point, the strip n curls so that it is out of reach of the float c and the circuit is not completed. Alternatively three pegs, two being dead, may be used, or a contact piece may be carried by the float c above the liquid level.
Patent GB-1335505-A (GB)
Title: Key-way milling machine
IPC: B23C1/027
Filed: 1972-04-25
Abstract: 1335505 Key way milling, beds and frames SHOEI MACHINERY PRODUCT CO Ltd 25 April 1972 [30 April 1971] 19130/72 Headings B3B and B3K A key way milling machine comprises a magnetic block 1 adapted to be supported on a workpiece 3, a base 4 fixed to the block, a carriage 5 slidably adjustable along the base by a screw 7, a second carriage 6 slidably adjustable along the carriage 5 by a screw 8, a body 9 mounted on carriage 6, a slide 11 vertically movable in the body 9, and a drive shaft 15 in the slide for rotating an end mill 23. Slide 11 and the corresponding bore 10 in body 9 are of octagonal cross section, and the slide is moved vertically by a rack and pinion 12, 13, Shaft 15 is rotated by a motor 16 through a shaft 17 and a gear-box 18. End mill 23 is connected to shaft 15 by a bevel drive 20, 22.
Patent GB-888858-A (GB)
Title: Method and apparatus for manufacture of cast plastic compositions
Inventor: MCCURDY GORDON WILLIAM
IPC: C06B21/00
Filed: 1951-08-15
Abstract: 888,858. Casting explosives and other plastic compositions. HERCULES POWDER CO. Aug. 15, 1951, No. 19306/51. Class 87(2). Plastic compositions, particularly propellant charges, are cast by placing powder granules e.g. nitrocellulose, in a container 14, pressing the powder by a perforated weight 30 and then admitting plasticizer e.g. desensitized nitroglycerine, via the pipe 18, which is provided with an upwardly deflecting baffle 19, into chamber 11 and then, via the ducts 16 and the holes 17 into the container 14. Air in the container is forced upwards and out through the holes in the weight 30, while any gases in the plasticizer supply are trapped in the chamber 11. A liquid outlet 21 and a gas outlet 20 are provided. To prevent granules falling into the chamber 11 a screen 22 of e.g. muslin or metal gauze, may be provided. When the granules have been covered by liquid the container 14 is removed and heated. This container may be of cellulose acetate or of a material that allows the casting to be removed. Appropriate formers may be mounted in the container to give rosette, cruciform and other shapes. Strands of a burning rate control material may be mounted in the container before adding the granules. Before passing in the liquid, both it and the packed container may be evacuated.
Patent GB-320088-A (GB)
Title: Improvements in detergents
IPC: C11D9/12
Filed: 1928-07-04
Abstract: 320,088. Copland, H., and Copland, J. July 4, 1928. Saponaceous cleansing-compositions.-A non- caustic detergent jelly, especially suitable for cleaning carpets and washing delicate fabrics, consists of about 15 lbs. of soap, 3.5 lbs. of sodium carbonate, a little. colloidal clay, and the necessary water. A little sodium borate may be added. In an example, 12 lbs. of soap flakes containing 0.05 per cent free caustic alkali, and 5.5 lbs. of soap powder containing 23.35 and 22.15 per cent respectively of anhydrous and crystalline sodium carbonate are boiled for 30 minutes in 20-25 gallons of water. 20 or more gallons of water, and 6.5 lbs. of a detergent composed of 25 parts by weight of soap, 20 parts of colloidal aluminium silicates, 12 parts of sodium borate, 15 parts of sodium sesquicarbonate, 15 parts of sodium carbonate, and 15 parts of water, made into a paste with cold water, are then stirred in, and the whole made up to 90-95 gallons and allowed to cool.
Patent GB-905747-A (GB)
Title: Improvements in or relating to adjustable waveguide plunger devices
Inventor: FREEMAN CHARLES DAVIS
IPC: H01P1/28
Filed: 1960-06-01
Abstract: 905,747. Waveguide tuning pistons. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Feb. 21, 1961 [June 1, 1960], No. 19377/60. Class 40 (8). The surface of a tuning plunger for a rectangular waveguide is insulated from the sides of the guide and one side of the plunger is pressed against a broad wall of the guide by a spring which engages the other broad wall. The plunger may be of the choke type comprising two parts 2a, 2b of rectangular section joined by a part 2c of circular section. Pieces 2d of insulating tape (shown cross-hatched in Fig. 5) cover the narrower faces of the parts 2a, 2b. A plate 2e bearing a bowed spring 6 is normally attached to the plunger by means of pins 5. A spigot 3b on the end of lead-screw 3 passes through apertures in the spring and the plate and collars 7, 8 locate these members on the spigot with the spring in compression. A spherical interface 89 between the collar 8 and a stop-member 9 permits a certain degree of angular play between the plunger and the leadscrew. One broad face of the plunger is pressed against the waveguide wall by means of a spring-biased insulated button 10 protruding from the other broad face. A narrow face of the plunger may be pressed against the guide wall by means of a further button 11. Instead of a button, a Z-shaped spring 12, Fig. 5, may be used. The outer limbs 12 of the spring engage, but are insulated from, the walls of the waveguide and the diagonal portion is bowed to engage the member 2c. The lead screw 3 is threaded into a spring nut 4 mounted on a fixed waveguide closure 1d. The only electrical connection between the plunger and the guide is through the screw.
Patent GB-658592-A (GB)
Title: Improvements in and relating to photographic emulsions
IPC: G03C1/08
Filed: 1949-07-22
Abstract: 658,592. Photographic emulsions. KODAK, Ltd. July 22, 1949, No. 19404. Convention date, July 23, 1948. [Class 98 (ii)] A photographic silver halide emulsion is sensitized by the incorporation therein after the formation of the sensitive silver salt of a watersoluble stannous compound in a concentration of from 1 Î 10<SP>-7</SP> to 44 Î 10<SP>-6</SP> mols. per mol. of silver halide. The stannous compound may be incorporated as an acid solution of the chloride, bromide, iodide, fluoride, or sulphate or as an alkali metal stannite. The emulsion may contain optical and sulphur sensitizers. In example (1), the speed, gamma, and fog values are given for samples of a non-optically sensitized gelatino-silver bromiodide emulsion containing no addition and various amounts of an acid stannous chloride solution. In example (2), similar data are given for no addition and various amounts of a sodium stannite solution. The emulsion binder may be gelatin, polyvinyl alcohol, or a partially hydrolysed cellulose ester such as cellulose acetate.